SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549



                                    FORM 8-K

                                 CURRENT REPORT
                       PURSUANT TO SECTION 13 OR 15(d) OF
                       THE SECURITIES EXCHANGE ACT OF 1934


       Date of Report (Date of Earliest Event Reported): December 9, 1997




                            COMSTOCK RESOURCES, INC.
             (Exact name of registrant as specified in its charter)



      NEVADA                        0-16741                    94-1667468
(State or other jurisdiction      (Commission               (I.R.S. Employer
    of incorporation)             File Number)            Identification Number)



                5005 LBJ Freeway, Suite 1000, Dallas, Texas 75244
                    (Address of principal executive offices)


                                (972) 701 - 2000
                          (Registrant's Telephone No.)





                                        1





Item 2. Acquisition or Disposition of Assets

     On December 9, 1997,  Comstock Resources,  Inc. (the "Company"),  through a
newly formed wholly owned subsidiary,  Comstock Offshore,  LLC, acquired working
interests in certain producing offshore Louisiana oil and gas properties as well
as  interests  in  undeveloped  offshore  oil  and gas  leases  for  total  cash
consideration of  approximately  $203.4 million from Bois d'Arc Resources ("Bois
d' Arc") and certain affiliates and working interest partners of Bois d' Arc.

     The  Company  acquired  interests  in 38 wells  (24.0 net  wells) and eight
separate  production  complexes  located  in the  Gulf  of  Mexico  offshore  of
Plaquemines  and  Terrebonne  Parishes,   Louisiana.  The  acquisition  included
interests in the Louisiana State and Federal  offshore areas of Main Pass Blocks
21 and 25,  Ship Shoal  Blocks 66,  67, 68 and 69 and South  Pelto  Block 1. The
Company also  acquired  interests  in six  undrilled  prospects  which have been
delineated by 3-D seismic.  Approximately  $30 million of the purchase price was
attributed to the undrilled prospects.

     The acquisition was financed under a new five year $290.0 million revolving
credit  facility.  The Company  financed the  acquisition  and refinanced  $77.0
million of outstanding indebtedness under its existing revolving credit facility
with borrowings under the new credit facility.

Item 7. Financial Statements and Exhibits

                                                                        Page in
                                                                     This Report
(a) Financial Statements.

    Bois d' Arc Acquisition:

       Report of Independent Public Accountants .............................F-1
       Statements of Revenues and Direct Operating Expenses
            for the Years ended December 31, 1994, 1995 and 1996
            and Nine Months Ended September 30, 1996 and 1997................F-2
       Notes to Statements of Revenues and Direct Operating Expenses.........F-3

(b) Pro Forma Financial Information (Unaudited)

    Comstock Resources, Inc.:

       Pro Forma Consolidated Financial Statements ..........................P-1
       Pro Forma Consolidated Balance Sheet as of September 30, 1997.........P-2
       Pro Forma Consolidated Statement of Operations
            for the Year Ended December 31, 1996.............................P-3
       Pro Forma Consolidated Statement of Operations
            for the Nine Months Ended September 30, 1997.....................P-4
       Notes to Pro Forma Consolidated Financial Statements..................P-5


                                        2






(c) Exhibits.

       2       Agreement For Purchase and Sale - Bois d' Arc Resources et.al.
               as Seller and Comstock Oil & Gas - Louisiana, Inc.as Buyer.

       10      Credit  Agreement  dated as of December 9, 1997 between  Comstock
               Resources,  Inc., Comstock Oil & Gas, Inc., Comstock Oil & Gas --
               Louisiana,  Inc., Comstock Offshore, LLC, the Banks named therein
               and The First  National  Bank of Chicago,  as Agent and Bank One,
               Texas, N.A., as Documentation Agent.

                                        3





                    REPORT OF INDEPENDENT PUBLIC ACCOUNTANTS





To the Board of Directors and Stockholders of
      Comstock Resources, Inc.:

     We  have  audited  the  accompanying  statements  of  revenues  and  direct
operating  expenses  of the Bois d' Arc  Acquisition  (see Note 1) for the years
ended  December 31, 1994,  1995 and 1996.  These  financial  statements  are the
responsibility of the management of Comstock Resources,  Inc. Our responsibility
is to express an opinion on these financial statements based on our audits.

     We conducted  our audits in accordance  with  generally  accepted  auditing
standards.  Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement.  An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the statements.  An audit also includes assessing
the accounting principles used and significant estimates made by management,  as
well as evaluating the overall financial statement presentation. We believe that
our audits provide a reasonable basis for our opinion.

     In our opinion,  such statements  present fairly, in all material respects,
the  revenues  and  direct  operating  expenses  of the Bois 'd Arc  Acquisition
described  in Note 1 for the years ended  December  31,  1994,  1995 and 1996 in
conformity with generally accepted accounting principles.


                                                    ARTHUR ANDERSEN LLP


Dallas, Texas,
   December 9, 1997






                                       F-1





                             BOIS d' ARC ACQUISITION

              STATEMENTS OF REVENUES AND DIRECT OPERATING EXPENSES

                 For the Years Ended December 31, 1994, 1995 and
                1996 and for the Nine Months Ended September 30,
                                  1996 and 1997
                                 (In thousands)


                                                                Nine Months
                                Year Ended December 31,      Ended September 30,
                               1994      1995       1996       1996       1997
                               ----      ----       ----       ----       ----
REVENUES                                                         (Unaudited)

  Oil and gas sales         $ 10,785  $ 14,884  $ 41,002    $ 27,406   $ 44,311

DIRECT OPERATING EXPENSES

  Oil and gas operating        2,211     3,348     5,680       3,933      6,539
                            --------   -------   -------     -------   --------

EXCESS OF REVENUES OVER
  DIRECT OPERATING EXPENSES $  8,574  $ 11,536  $ 35,322    $ 23,473   $ 37,772
                            ========  ========  ========    ========   ========














       See Notes to Statements of Revenues and Direct Operating Expenses.

                                       F-2




                             BOIS d' ARC ACQUISITION

    NOTES TO STATEMENTS OF REVENUES AND DIRECT OPERATING EXPENSES (Continued)


                             BOIS d' ARC ACQUISITION

          NOTES TO STATEMENTS OF REVENUES AND DIRECT OPERATING EXPENSES


(1) BASIS OF PRESENTATION -

     On December 9, 1997,  Comstock Resources,  Inc. (the "Company"),  through a
newly formed wholly owned subsidiary,  Comstock Offshore,  LLC, acquired working
interests in certain producing offshore Louisiana oil and gas properties as well
as  interests  in  undeveloped  offshore  oil  and gas  leases  for  total  cash
consideration of  approximately  $203.4 million from Bois d'Arc Resources ("Bois
d' Arc") and certain  affiliates  and working  interest  partners of Bois d' Arc
(the "Bois d' Arc Acquisition").

     The  Company  acquired  interests  in 38 wells  (24.0 net  wells) and eight
separate  production  complexes  located  in the  Gulf  of  Mexico  offshore  of
Plaquemines  and  Terrebonne  Parishes,   Louisiana.  The  acquisition  included
interests in the Louisiana State and Federal  offshore areas of Main Pass Blocks
21 and 25,  Ship Shoal  Blocks 66,  67, 68 and 69 and South  Pelto  Block 1. The
Company also  acquired  interests  in six  undrilled  prospects  which have been
delineated by 3-D seismic.  Approximately  $30 million of the purchase price was
attributed to the undrilled prospects.

     The acquisition was financed under a new five year $290.0 million revolving
credit  facility.  The Company  financed the  acquisition  and refinanced  $77.0
million of outstanding  indebtness under its existing  revolving credit facility
with borrowings under the new credit facility.

     The accompanying  statements of revenues and direct  operating  expenses do
not include general and  administrative  expense,  interest income or expense, a
provision  for  depreciation,  depletion and  amortization  or any provision for
income taxes because the property interests acquired represent only a portion of
a business  and the costs  incurred  by the  sellers of the  properties  are not
necessarily indicative of the costs to be incurred by the Company.

     Historical financial information reflecting financial position,  results of
operations  and  cash  flows  of the Bois d' Arc  Acquisition  is not  presented
because all of the  acquisition  cost was  assigned to the oil and gas  property
interests.  Accordingly,  the  historical  statements  of  revenues  and  direct
operating  expenses  have been  presented  in lieu of the  financial  statements
required under Rule 3-05 of Securities and Exchange Commission Regulation S-X.

                                       F-3





                    COMSTOCK RESOURCES, INC. AND SUBSIDIARIES

             PRO FORMA CONSOLIDATED FINANCIAL STATEMENTS (Unaudited)




     The  accompanying  Pro Forma  Consolidated  Financial  Statements have been
prepared by  recording  pro forma  adjustments  to the  historical  consolidated
financial   statements  of  Comstock  Resources,   Inc.  and  subsidiaries  (the
"Company").  The Pro Forma  Consolidated  Balance Sheet as of September 30, 1997
has been prepared as if the Bois d' Arc Acquisition was consummated on September
30, 1997. The Pro Forma Consolidated Statements of Operations for the year ended
December  31, 1996 and for the nine months  ended  September  30, 1997 have been
prepared  as if the  Bois  d' Arc  Acquisition  and  the  Other  1996  and  1997
Acquisitions,  as described  in Note 1, were  consummated  immediately  prior to
January 1, 1996 and January 1, 1997, respectively.

     The  Pro  Forma  Consolidated  Financial  Statements  are  not  necessarily
indicative  of the financial  position or results of operations  that would have
occurred had the transactions been effected on the assumed dates.  Additionally,
future  results may vary  significantly  from the results  reflected  in the Pro
Forma Consolidated  Statements of Operations due to normal production  declines,
changes in oil and gas prices,  future  transactions  and other  factors.  These
statements should be read in conjunction with the Company's audited consolidated
financial  statements  and the related notes  included in the  Company's  Annual
Report on Form  10-K for the year  ended  December  31,  1996 and the  Company's
consolidated  financial  statements  and  the  related  notes  included  in  the
Company's  quarterly report on Form 10-Q for the nine months ended September 30,
1997.


                                       P-1






                    COMSTOCK RESOURCES, INC. AND SUBSIDIARIES

                PRO FORMA CONSOLIDATED BALANCE SHEET (Unaudited)

                               SEPTEMBER 30, 1997
                                 (In thousands)

                                     ASSETS
Pro Forma Adjustments (Note 2) Bois d' Arc Historical Acquisition(a) Pro Forma ---------- -------------- --------- Cash and Cash Equivalents $ 6,342 $ - $ 6,342 Accounts Receivable: Oil and gas sales 12,260 5,000 17,260 Joint interest operations 3,641 - 3,641 Other Assets 390 - 390 --------- ---------- -------- Total current assets 22,633 5,000 27,633 --------- ---------- -------- Property and Equipment: Unevaluated oil and gas leases - 30,000 30,000 Oil and gas properties 275,411 172,986 448,397 Other 548 1,000 1,548 Accumulated depreciation, depletion and amortization (68,015) - (68,015) --------- ---------- ---------- Net property and equipment 207,944 203,986 411,930 --------- ---------- --------- Other Assets 115 - 115 --------- ---------- --------- $ 230,692 $ 208,986 $ 439,678 ========= ========== ========= LIABILITIES AND STOCKHOLDERS' EQUITY Current Portion of Long-term Debt $ 9 $ - $ 9 Accounts Payable and Accrued Expenses 19,385 - 19,385 --------- ---------- --------- Total current liabilities 19,394 - 19,394 --------- ---------- --------- Long-term Debt, less Current Portion 83,000 204,442 287,442 Deferred Taxes Payable 8,796 - 8,796 Other Noncurrent Liabilities 905 4,544 5,449 Stockholders' Equity: Common stock - $.50 par, 24,204,785 shares outstanding 12,102 - 12,102 Additional paid-in capital 110,099 - 110,099 Retained deficit (3,585) - (3,585) Less: Deferred compensation - restricted stock (19) - (19) --------- --------- ---------- Total stockholders' equity 118,597 - 118,597 --------- --------- ---------- $ 230,692 $ 208,986 $ 439,678 ========= ========= ========= See Notes to Pro Forma Consolidated Financial Statements.
P-2 COMSTOCK RESOURCES, INC. AND SUBSIDIARIES PRO FORMA CONSOLIDATED STATEMENT OF OPERATIONS (Unaudited) For the Year Ended December 31, 1996 (In thousands except for per share amounts)
Pro Forma Adjustments (Note 2) Other Bois d' Arc 1996 and 1997 Historical Acquisition Acquisitions Other Pro Forma ---------- ----------- ------------ ----- --------- Revenues: Oil and gas sales $ 68,915 $ 41,002(b) $ 14,940(c) $ - $ 124,857 Gain on sales of property 1,447 - - - 1,447 Other income 593 - - - 593 --------- --------- --------- --------- --------- Total revenues 70,955 41,002 14,940 - 126,897 --------- --------- --------- --------- --------- Expenses: Oil and gas operating 13,838 5,680(b) 1,531(c) - 21,049 Exploration 436 - - - 436 Depreciation, depletion and amortization 18,269 - - 22,381 (d) 40,650 General and administrative, net 2,239 - - (286)(e) 1,953 Interest 10,086 - - 15,628 (f) 25,714 --------- --------- --------- --------- --------- Total expenses 44,868 5,680 1,531 37,723 89,802 --------- --------- --------- --------- --------- Income from continuing operations before income taxes 26,087 35,322 13,409 (37,723) 37,095 Provision for income taxes - - - 3,853 (g) 3,853 --------- --------- --------- --------- --------- Income from continuing operations 26,087 35,322 13,409 (41,576) 33,242 Preferred stock dividends (2,021) - - - (2,021) Net income from continuing operations attributable to common stock 24,066 35,322 13,409 (41,576) 31,221 Income from discontinued operations 1,866 - - - 1,866 Net income attributable to common stock $ 25,932 $ 35,322 $ 13,409 $ (41,576) $ 33,087 ========= ========= ========= ========= ========= Net income per share: Primary $ 1.58 $ 2.02 ========== ========= Fully diluted $ 1.31 $ 1.64 ========== ========= Weighted average common shares outstanding: Primary 16,370 16,370 ========== ========= Fully diluted 21,408 21,408 ========== ========= See Notes to Pro Forma Consolidated Financial Statements.
P-3
COMSTOCK RESOURCES, INC. AND SUBSIDIARIES PRO FORMA CONSOLIDATED STATEMENT OF OPERATIONS (Unaudited) For the Nine Months Ended September 30, 1997 (In thousands, except per share amounts) Pro Forma Adjustments (Note 2) Other Bois d' Arc 1996 and 1997 Historical Acquisition Acquisitions Other Pro Forma ---------- ----------- ------------ ---------- --------- Revenues: Oil and gas sales $ 59,610 $ 44,311 (b) $ 1,338(c) $ - $ 105,259 Gain on sales of property 85 - - - 85 Other income 597 - - - 597 --------- ---------- --------- ---------- -------- Total revenues 60,292 44,311 1,338 - 105,941 --------- ---------- --------- ---------- -------- Expenses: Oil and gas operating 12,849 6,539 (b) 124(c) - 19,512 Exploration 280 - - - 280 Depreciation, depletion and amortization 16,335 - - 23,223 (d) 39,558 General and administrative, net 1,811 - - (242)(e) 1,569 Interest 3,884 - - 9,710 (f) 13,594 --------- --------- --------- ---------- -------- Total expenses 35,159 6,539 124 32,691 74,513 --------- --------- --------- ---------- -------- Income before income taxes 25,133 37,772 1,214 (32,691) 31,428 Provision for income taxes 8,796 - - 2,203 (g) 10,999 --------- --------- --------- ---------- -------- Income 16,337 37,772 1,214 (34,894) 20,429 Preferred stock dividends (410) - - - (410) --------- --------- --------- ---------- -------- Net income attributable to common stock $ 15,927 $ 37,772 $ 1,214 $ (34,894) $ 20,019 ========= ========= ========= ========== ======== Net income per share: Primary $ .63 $ .80 ========= ======== Fully diluted $ .62 $ .78 ========= ======== Weighted average common shares outstanding Primary 25,114 25,114 ========= ======== Fully diluted 26,306 26,306 ========= ======== See Notes to Pro Forma Consolidated Financial Statements.
P-4 COMSTOCK RESOURCES, INC. AND SUBSIDIARIES NOTES TO PRO FORMA CONSOLIDATED FINANCIAL STATEMENTS (Unaudited) (1) BASIS OF PRESENTATION - On December 9, 1997, Comstock Resources, Inc. (the "Company") through a newly formed wholly owned subsidiary, Comstock Offshore, LLC, acquired working interests in certain producing offshore Louisiana oil and gas properties as well as interests in undeveloped offshore oil and gas leases for total cash consideration of approximately $203.4 million from Bois d'Arc Resources ("Bois d' Arc") and certain affiliates and working interest partners of Bois d' Arc. The Company acquired interests in 38 wells (24.0 net wells) and eight separate production complexes located in the Gulf of Mexico offshore of Plaquemines and Terrebonne Parishes, Louisiana. The acquisition included interests in the Louisiana State and Federal offshore areas of Main Pass Blocks 21 and 25, Ship Shoal Blocks 66, 67, 68 and 69 and South Pelto Block 1. The Company also acquired interests in six undrilled prospects which have been delineated by 3-D seismic. Approximately $30 million of the purchase price was attributed to the undrilled prospects. In May 1996, the Company purchased working interests in the Double A Wells field in Polk County, Texas for a net purchase price of $100.4 million. The Company acquired 100% of the capital stock of Black Stone Oil Company, the operator of the field, together with additional interests held by other working interest owners in 19 producing oil and gas properties as well as interests in adjacent undeveloped oil and gas leases. In May 1997, the Company purchased certain producing oil and gas properties located in the Lisbon field in Claiborne Parish, Louisiana for a net purchase price of $20.1 million. The acquisition included interests in 13 wells (7.1 net wells) and approximately 6,400 gross acres. The acquisition closed in 1996 and the acquisition closed in May 1997 are hereafter referred to as the "Other 1996 and 1997 Acquisitions." The accompanying Pro Forma Consolidated Balance Sheet at September 30, 1997 and the Pro Forma Consolidated Statements of Operations for the year ended December 31, 1996 and the nine months ended September 30, 1997, have been prepared assuming the Company consummated, immediately prior to each of the periods presented, the Bois d' Arc Acquisition and the Other 1996 and 1997 Acquisitions, funded by borrowings under the Company's bank credit facility. The Pro Forma Consolidated Statements of Operations are not necessarily indicative of the results of operations had the above described transactions occurred on the assumed dates. (2) PRO FORMA ADJUSTMENTS - Pro forma adjustments necessary to adjust the Consolidated Balance Sheet and Statements of Operations are as follows: (a) To record the assets acquired with the Bois d' Arc Acquisition funded by borrowings under the Company's new bank credit facility. P-5 COMSTOCK RESOURCES, INC. AND SUBSIDIARIES NOTES TO PRO FORMA CONSOLIDATED FINANCIAL STATEMENTS (Unaudited) (Continued) (b) To record revenue and direct operating expenses of the Bois d' Acquisition, based on the statements of revenue and direct operating expenses for the year ended December 31, 1996 and for the nine months ended September 30, 1997. (c) To record revenue and direct operating expenses of the Other 1996 and 1997 Acquisitions. (d) To record estimated depreciation and depletion expense attributable to the Bois d' Arc Acquisition and Other 1996 and 1997 Acquisitions using the unit-of-production method applied to the net cost of the properties acquired. (e) To record the operating fee income attributable to Bois d' Arc and the Other 1996 and 1997 Acquisitions, which is netted against general and administrative expense. (f) To record interest expense attributable to the increase in debt to finance the purchase of the Bois d' Arc Acquisition and the Other 1996 and 1997 Acquisitions. Interest expense is based upon the weighted average interest rate incurred by the Company under its bank credit facility in assuming the entire cost of the acquisitions had been funded with bank borrowings at January 1 of each period and is net of capitalized interest of $2,048,000 and $1,569,000 for the year ended December 31, 1996 and the nine months ended September 30, 1997, respectively. (g) To record income tax expense attributable to the Bois d' Arc Acquisition and the Other 1996 and 1997 Acquisitions. (3) OIL AND GAS RESERVE INFORMATION (Unaudited) The estimates of proved oil and gas reserves were estimated by independent petroleum engineers in accordance with guidelines established by the Securities and Exchange Commission and the Financial Accounting Standards Board, which require that reserve reports be prepared under existing economic and operating conditions with no provision for price and cost escalation except by contractual agreement. The following table sets forth proved oil and gas reserves after the Bois d' Arc Acquisition at November 1, 1997, the effective date of the acquisition: OIL GAS (barrels) (mcf) ------------- ------------- Proved Developed Reserves 11,539,000 22,733,000 Proved Undeveloped Reserves 3,089,000 7,851,000 ------------- ------------- Total Proved Reserves 14,628,000 30,584,000 ============= ============= P-6 The following table set forth the standardized measure of discounted future net cash flows, excluding future income taxes, relating to proved reserves of the Bois d' Arc Acquisition at November 1, 1997: Future Cash Flows $ 357,760,000 Future Cost Production (68,343,000) Development (24,192,000) -------------- Future Net Cash Flows 265,225,000 10% Discount Factor (70,444,000) -------------- Standardized Measure of Discounted future Net Cash Flows $ 194,781,000 ============== Future cash flows were based on September 1997 price for future oil and gas sales. P-7 COMSTOCK RESOURCES, INC. AND SUBSIDIARIES NOTES TO PRO FORMA CONSOLIDATED FINANCIAL STATEMENTS (Unaudited) (Continued) SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. COMSTOCK RESOURCES, INC. Dated: December 12, 1997 By:/s/ROLAND O. BURNS ------------------ Roland O. Burns Senior Vice President, Chief Financial Officer, Secretary, and Treasurer (Principal Financial and Accounting Officer) P-8
                           PURCHASE AND SALE AGREEMENT


     THIS  PURCHASE  AND  SALE  AGREEMENT   (hereinafter   referred  to  as  the
"Agreement")  is made and entered into as of the 31st day of October,  1997,  by
and among BOIS D'ARC RESOURCES,  a Louisiana  partnership of Wayne L. Laufer and
Gary  W.  Blackie  ("Bois  D'Arc"),  and the  other  persons  identified  on the
signature pages hereto as a Seller  (individually  a "Seller" and  collectively,
"Sellers")  and COMSTOCK  OIL & GAS --  LOUISIANA,  INC.,  a Nevada  corporation
("Purchaser").

                                    RECITALS

     WHEREAS, Sellers are owners of or represent various interests in and to the
real and personal property described below:

     (1) The undivided interests in and to the depths and formations depicted on
the  Exhibit  "A"  attached  hereto,  in and to (i) the  oil,  gas  and  mineral
properties and interests described on Exhibit "A", including but not limited to,
leasehold,  fee and  mineral  interests  necessary  to deliver  the net  revenue
described  in  Exhibit  "A",  and  payments  out of or  measured  by  Production
(hereinafter  defined) (said undivided interests being herein referred to as the
"Leases");  (ii) the units, pooled acreage, spacing, or proration units or other
allocation of acreage, and all rights associated therewith, which are applicable
to the  Leases  and  have  been  established  by,  or in  accordance  with,  (A)
applicable  contractual   provisions  regarding  unitization,   communitization,
pooling, spacing or proration, or (B) applicable state or federal law;

     (2) The  undivided  interests  set forth on Exhibit  "A" in and to all oil,
gas,  casinghead  gas,  condensate,  distillate  and  other  liquid  or  gaseous
hydrocarbons and other minerals which are in, under,  upon, and produced from or
allocable (or to be produced from or allocable) to the Leases (such hydrocarbons
and minerals being hereinafter referred to as "Production"), including "pipeline
fill" and inventory  attributable to the interests  described in Exhibit "A", or
the proceeds from the sale of such Production;

     (3) All personal property of every kind and character located on the Leases
or used in the operation thereof including,  without limitation,  wells (whether
productive or non-productive, active or inactive) (the "Wells"), well equipment,
casing,  tanks,  machinery,  gathering lines and systems,  treatment facilities,
pipelines,  boats,  barges,  platforms  and other  appurtenances,  and any other
personal  property  situated  thereon,  but  specifically  excluding those items
listed on Schedule 1 hereto (herein  individually and collectively called "Wells
and Equipment");

     (4)  All  rights,  privileges,  benefits,  permissions  and  authorizations
(including, without limitation,  permits, licenses,  servitudes,  easements, and
rights-of-way)  in  respect  of the use and  occupation  of the  surface of such
Leases,  and the  subsurface  depths under the land and premises  covered by and
benefiting such Leases, but excluding any security bonds or deposits relating to
the  operation  of the  Leases  (herein  called  individually  and  collectively
"Rights-of-Way and Permits");


                                       1





     (5) All of the orders, gas purchase and sale contracts (wherein Sellers are
a selling  party),  crude purchase and sale  agreements  (wherein  Sellers are a
selling party),  surface leases, farmin agreements,  farmout agreements,  bottom
hole agreements,  acreage contribution  agreements,  operating agreements,  unit
agreements,  processing agreements,  options,  leases of equipment or facilities
and other contracts,  agreements and rights which are owned by Sellers, in whole
or in part and are (i) appurtenant to the Leases or (ii) used or held for use in
connection with the ownership or operation of the Leases or with the Production,
treatment on the Leases,  sale or disposal of water,  hydrocarbons or associated
substances (herein called individually and collectively the "Contracts"); and

     (6) All of the files,  records and data relating to the items  described in
subsections (1), (2), (3), (4) and (5) above (the "Records"), including, without
limitation,  lease files,  title records  (including  abstracts of title,  title
opinions and title curative documents), contracts,  correspondence,  geological,
geophysical and seismic records,  data and information,  and production records,
electric  logs,  core data,  pressure  data and  decline  curves  and  graphical
production  curves  and all  related  matters,  to the extent  Sellers  have the
authority to release such Records.

     The Leases, Production, Wells and Equipment, the Rights-of-Way and Permits,
the Contracts and the Records  referred to in 1 through 6 above are  hereinafter
sometimes   referred  to  individually  and  collectively  in  the  singular  as
"Property."

     WHEREAS,  Sellers  desire to sell and  convey,  and  Purchaser  desires  to
purchase  and receive  Sellers'  interests as set forth in Exhibit "A" in and to
the  Property  which is  described  herein,  upon and  subject  to the terms and
conditions set forth herein.

     NOW,  THEREFORE,  for and in consideration of the mutual  agreements herein
contained,   and  other  good  and  valuable  consideration,   the  receipt  and
sufficiency  of  which  are  hereby  acknowledged  and  confessed,  Sellers  and
Purchaser hereby agree as follows:

     1. Sale and  Purchase.  Sellers  agree to sell and convey to Purchaser  and
Purchaser  agrees  to  purchase  and pay for all of  Sellers'  right,  title and
interest,  as described  in Exhibit  "A", in and to the Property as  hereinafter
provided.

     2. Purchase Price. The purchase price for the Property shall be Two Hundred
Five Million Dollars ($205,000,000) (the "Purchase Price"), and shall be payable
by  Purchaser  to  Sellers  in  immediately   available  funds  at  the  Closing
(hereinafter  defined).   However,  the  Purchase  Price  shall  be  subject  to
adjustment  as  hereinafter  provided.  Set forth on  Schedule 2 is  Purchaser's
allocation of the Purchase  Price among the  properties  comprising the Property
and Purchaser's allocation of the Purchase Price to each individual Seller based
on each such Seller's interest in the Property.


     3. Closing and Effective Date.

          (a) The closing of the sale and  purchase of the  Property  shall take
place on or  before  December  15,  1997  (the  "Closing"),  at the  offices  of
Purchaser,  or at such other time, place or manner as may be mutually  agreeable
to the parties. The sale of the Property shall be effective as

                                        2





of 7:00 a.m. Central Standard Time, on November 1, 1997 (the "Effective  Date").
It is the intent of the parties  that  Purchaser  shall be  responsible  for all
costs  associated with operating the Property after the Effective Date and shall
be entitled to all revenues  attributed  by the  purchaser of  production to the
month of November 1997, and thereafter.

          (b) At the Closing,  the Property shall be conveyed and transferred by
Sellers to Purchaser by the execution and delivery of an Assignment  and Bill of
Sale (the "Assignment") in substantially the form of Assignment and Bill of Sale
attached hereto as Exhibit "B", and such other  instruments of conveyance as may
be requested by Purchaser. Purchaser shall be entitled to all of Sellers' rights
as described in Exhibit "A" (including,  without  limitation,  the rights to all
Production  and proceeds of  Production)  appurtenant  and  attributable  to the
Property  and shall be  subject to the duties  and  obligations  attendant  with
ownership  of the  Property  for the period from and after the  Effective  Date.
Sellers shall be entitled to all of the rights (including,  without  limitation,
the  rights to all  Production  and  proceeds  of  Production)  appurtenant  and
attributable  to the Property and shall be subject to the duties and obligations
attendant with ownership of the Property,  for the period prior to the Effective
Date.

     4.  Adjustments to Purchase Price.  The Purchase Price shall be adjusted at
the Closing in accordance with the "Interim Settlement  Statement"  (hereinafter
defined) and in accordance with the "Final  Settlement  Statement"  (hereinafter
defined) as follows:

          (a) The Purchase Price shall be increased by the following:

               (1) the value of all  merchantable  allowable oil or other liquid
hydrocarbons  in storage  owned by  Sellers  in the tanks or above the  pipeline
connection  or not  otherwise  accounted  for by  Purchaser  (to be based on the
October  1997  prices  received  by  Sellers)  at the  Effective  Date,  and not
previously  sold by  Sellers,  that is credited  to the  Property  valued at the
contract  price  thereto,  or if none,  the  market  price in  effect  as of the
Effective Date, less taxes or gravity  adjustments  deducted by the purchaser of
such oil or other liquid hydrocarbons;

               (2) the amount of all reasonable  expenditures made in connection
with  the  ownership,  operation  and  maintenance  of the  Property  (including
royalties  and rentals) and in accordance  with  generally  accepted  accounting
principles  ("GAAP") and prudent  operations,  attributable solely to the period
from and after the Effective  Date and which are paid by or on behalf of Sellers
after the Effective Date.  Notwithstanding  anything in this Agreement,  Sellers
shall be solely  responsible  for all  tangible  and  intangible  capital  costs
relative to the  drilling,  completion  and placing on  production  of the Wells
incurred prior to Closing,  including but not limited to,  seismic  acquisition,
surface damages,  pipeline rights-of-way,  and surface restorations (hereinafter
referred to as "Capital  Expenditures");  provided  however,  that the  Purchase
Price  will be  increased  by an  amount  equal to all lease  acquisition  costs
relating  to  prospects  that  are  incurred  by  Sellers,  to the  extent  such
acquisitions are approved in advance in writing by Purchaser;

               (3) an amount equal to all prepaid  expenses  attributable to the
ownership,  operation  and  maintenance  of the Property  that are paid by or on
behalf of Sellers  after the  Effective  Date and prior to the Closing  Date and
that are, in  accordance  with GAAP  attributable  solely to the period from and
after the Effective Date; and

                                        3





               (4) to the extent the agreements affecting same are acceptable to
Purchaser, any other amount agreed upon by Purchaser and Sellers.

          (b) The Purchase Price shall be decreased by the following:

               (1) the  amount  of any  proceeds  from  the  sale of  Production
attributable  to the period on or after the Effective  Date (net of  production,
severance  and  similar  taxes and  assessments  measured  by or payable  out of
production) actually received or accrued by or on behalf of Sellers;

               (2)  an  amount  equal  to  all  unpaid  ad  valorem,   property,
production,  profit,  severance and similar taxes and assessments  based upon or
measured by the ownership of the Property or the production of oil, gas or other
minerals therefrom or the receipt of proceeds attributable thereto, which accrue
to or are chargeable  against the Property (in  accordance  with GAAP) and which
are attributable to the period prior to the Effective Date;

               (3)  any  amounts  received  by  Sellers  (whether  prior  to  or
subsequent to the Effective Date) pursuant to "take-or-pay,"  advance payment or
similar  provisions  of  any  production  sales  contract,   any  gas  balancing
agreement,  or any other agreement, to the extent any purchaser has the right to
apply any such amounts to Production delivered after the Effective Date;

               (4) any reduction in the value of the Property resulting from the
existence of a Defect (as defined  herein) which is not cured or waived prior to
Closing; and

               (5) any other amount agreed upon by Purchaser and Sellers.

          (c) All monies received by either party hereto which,  under the terms
of this Agreement or otherwise,  belong to the other party, shall be received in
trust by the party  receiving such funds,  and shall monthly,  upon receipt,  be
paid over to the other party.  The parties agree,  in this regard,  to cooperate
fully and to execute,  endorse and deliver as  expeditiously as practicable such
papers,  checks and documents as are needed promptly to complete the transfer of
such payments;

          (d)  After  the  Closing,  if  an  invoice  or  other  evidence  of an
obligation  relating to the Property is received  which is applicable to periods
both prior to and after the  Effective  Date,  and is partly the  obligation  of
Sellers and partly the  obligation of  Purchaser,  then each party shall pay its
respective  portion of such  obligation  to the  obligee,  prorated  between the
parties as of the Effective Date;

          (e) At and after the Closing,  Purchaser  and Sellers  will  cooperate
fully in notifying  all  applicable  third parties  (including  the execution by
Sellers of such transfer orders,  letters in lieu, change of operator,  etc., as
may be requested by Purchaser) so that notices,  proceeds and invoices from such
third  parties may take into  account the fact that  Purchaser  has acquired the
Property as of the Effective Date;

          (f) The provisions of this Section 4 shall survive the Closing hereof.


                                        4





     5. Property  Conditions,  Title Review,  Property  Information and Casualty
Losses.

          (a)  Property  Conditions.  Sellers  agree  that for a period  of time
commencing upon the date of this Agreement and continuing  until 5 business days
before  Closing  (the "Review  Period"),  Purchaser,  personally  or through its
authorized agents or  representatives,  shall have the right to make any and all
physical  inspections of the Property  which  Purchaser may desire to make or to
have  made and to make  all  such  other  inspections,  surveys,  tests or other
studies  (including,   but  not  limited  to,   environmental   assessments  and
evaluations)  as Purchaser  deems  necessary or  desirable.  Purchaser,  and its
authorized agents and  representatives,  with prior notice to Sellers, may enter
upon the  Property for the purpose of  conducting  those  inspections,  surveys,
tests,  and studies.  If Purchaser  shall  determine  that the  condition of the
Property  is not in  compliance  with any  governmental  regulations  (including
environmental  regulations),  then upon  discovery  Purchaser must promptly give
written notice to Sellers (but in no event later than the last day of the Review
Period) of such condition.  Upon receipt of such notice,  Sellers shall have the
option,  but not the  obligation,  to (a) cure or remedy such  condition  to the
satisfaction of Purchaser (if current  remediation of such condition is required
by a governmental agency,  Sellers agree that the condition shall be remedied in
accordance  with  and  to  the   satisfaction   of  the   appropriate   agency's
requirements); or (b) agree with Purchaser on a reduction to the Purchase Price,
which reduction shall reflect Purchaser's cost to remedy such condition.  If the
condition  cannot  be cured  or  remedied  to  Purchaser's  satisfaction  and if
agreement  cannot be  reached  on  reduction  to the  Purchase  Price,  then the
affected  Property may be excluded by Purchaser from the Property to be acquired
by Purchaser  hereunder and the Purchase Price shall be reduced according to the
value of the affected Property (or that portion of such Property so affected) as
determined by the allocated  value shown on Schedule 2. In the event the parties
fail to agree upon the  implementation  of either  subclause (a) or (b) prior to
Closing,  and if a reduction of more than 20% in the Purchase Price results from
the  exclusion by Purchaser of the affected  Property,  Purchaser  may terminate
this Agreement by delivery of written notice so indicating to Sellers,  in which
event this  Agreement  shall  terminate,  and the parties  hereto  shall have no
further  rights  or  obligations  under  this  Agreement.   Notwithstanding  the
foregoing,  Purchaser  shall not be  entitled  to  exclude  Main  Pass  Block 25
pursuant to a Defect unless  Purchaser also excludes Main Pass Block 21 from the
purchase hereunder.

          (b)  Defects.   During  the  Review  Period,   Sellers  shall  provide
Purchaser, personally or through its authorized agents or representatives,  full
access during normal  business hours to the Selling Group  Representative's  (as
defined  herein)  office  and  premises  to  review  and  inspect  all  Records,
including,  but not limited to, all abstracts of title, lease files, unit files,
production and marketing files,  title opinions,  title files, title records and
other  files or  information  in any  Seller's  possession  or to which any such
Seller has access which relate to the Property and the status of Sellers'  title
thereto,  and Purchaser shall have the right to make and retain copies of any of
such Records.

          (c)  Notice  of  Defect.  If  during  the  Review  Period,   Purchaser
determines that the Property is subject to a Defect, Purchaser must give written
notice to Sellers of such Defect,  the nature of the Defect and furnish  Sellers
Purchaser's  basis for the assertion of such Defect.  As soon as practical after
such  written  notice,  but no later  than (3)  business  days  after the Review
Period, Sellers and Purchaser shall meet and use a good faith effort to agree on
the Purchase Price  adjustment for such Defect.  If Sellers and Purchaser cannot
agree in good faith on the amount of such a

                                        5





Purchase Price  adjustment,  such amount shall be determined in accordance  with
the following guidelines:

               (1) If the Defect is that a Seller's Net Revenue Interest ("NRI")
for any Property is less than the NRI for such  Property as set forth in Exhibit
"A", then the portion of the Purchase Price for such Property,  as determined by
Schedule 2, shall be adjusted in the same  proportion  that the actual NRI bears
to the NRI shown in Exhibit "A";

               (2) If the Defect is a lien, encumbrance or other charge upon the
Property  which is liquidated in amount,  then the  adjustment  shall be the sum
necessary to be paid to the obligee to remove the Defect from the Property;

               (3) If the Defect is  curable  and  Sellers  desire to attempt to
cure such  Defect,  the  Purchase  Price paid at Closing  will be reduced as set
forth  herein;  however,  Sellers  shall have a period of 60 days from and after
Closing in which to cure such Defect. If Sellers are able to cure such Defect to
the satisfaction of Purchaser  within the 60 day period,  Purchaser shall pay to
Sellers a sum equal to the  amount  deducted  from the  Purchase  Price for such
Defect; and

               (4) If the Purchase  Price  adjustment for any such Defect cannot
be  determined  pursuant  to clauses  (1),  (2) or (3) above,  and  Sellers  and
Purchaser  cannot  otherwise agree in good faith on the amount of the adjustment
to the  Purchase  Price,  Purchaser  may (1) waive the Defect and  proceed  with
Closing or (2) exclude the affected Property and reduce the Purchase Price based
upon the value of the affected Property as set forth in Schedule 2. In the event
exclusion  of the affected  Property or  adjustment  due to Defect  results in a
reduction of more than 20% of the Purchase  Price,  Purchaser may terminate this
Agreement by delivery of written notice so indicating to Sellers, in which event
this  Agreement  shall  terminate,  and the parties hereto shall have no further
rights or  obligations  under this  Agreement.  Notwithstanding  anything to the
contrary  herein,  failure  by  Sellers to  deliver  the  Consents  (hereinafter
defined)  shall not be  considered in the  calculation  of the 20% threshold set
forth above.

          (d) Defect Definition.  For the purpose of this Agreement,  a "Defect"
shall be defined as:

               (1) Any encumbrance,  lien, mortgage, breach of representation or
warranty,  production  payment,  pledge,  claim,  charge,  call  on  production,
default,  defect,  unleased mineral interest,  preferential right or requirement
for consent to assignment affecting the Property,  except for Consents which are
not to be unreasonably withheld or are normally obtained after Closing; or

               (2) A Seller's  NRI in any Property is less than the NRI for such
Property which is set forth in Exhibit "A", or a Seller's gross working interest
("GWI") in any  Property is greater than the working  interest  shown in Exhibit
"A" without a corresponding increase in the NRI in such Property.

          (e) Other Property Information. If, based upon Purchaser's examination
of the Records  pursuant to Section 5(b) above,  Purchaser  shall determine that
any information, statement

                                        6





or data contained in any  information,  reports,  statement or data furnished to
Purchaser  or used in its  economic  analysis  of the  Property  is not  true or
correct in any material  respect,  upon  discovery of any incorrect  information
Purchaser may give written notice to Sellers of such inaccuracy or misstatement.
Any such notice must be provided  during the Review  Period or it will be deemed
to be  waived.  Such  notice  shall  provide a  summary  of such  inaccuracy  or
misstatement.  Upon receipt of such notice,  Sellers shall have the option,  but
not the obligation, to (a) cure or remedy such inaccuracy or misstatement to the
satisfaction  of  Purchaser;  or (b) agree with  Purchaser on a reduction to the
Purchase Price which  reduction  shall reflect  Purchaser's  cost to remedy such
inaccuracy or misstatement. If the inaccuracy or misstatement cannot be cured or
remedied  to  Purchaser's  satisfaction  and if  agreement  cannot be reached on
reduction to the Purchase  Price,  then the affected  Property shall be excluded
from the Property to be acquired by Purchaser  hereunder and the Purchase  Price
shall be  reduced  according  to the  value of the  affected  Property  (or that
portion of such  Property so  affected) as set forth in Schedule 2. In the event
the parties fail to agree upon the implementation of either subclause (a) or (b)
prior to Closing,  and if a  reduction  of more than 20% in the  Purchase  Price
results from the exclusion by Purchaser of the affected Property,  Purchaser may
terminate this Agreement by delivery of written notice so indicating to Sellers,
in which event this Agreement shall terminate, and the parties hereto shall have
no further rights or obligations under this Agreement.

          (f) Casualty Loss. If prior to Closing,  any Property is substantially
damaged or  destroyed by fire or other  casualty  ("Casualty  Defect"),  Sellers
shall notify Purchaser promptly after Sellers learn of such event. Sellers shall
have the right,  but not the  obligation,  to cure any such  Casualty  Defect by
repairing  such  damage  or,  in the  case of  personal  property  or  fixtures,
replacing the property affected thereby with equivalent items, no later than the
date of Closing. If any Casualty Defects exist at Closing, Purchaser may proceed
to purchase  the Property  affected  thereby,  and the  Purchase  Price shall be
reduced by the  aggregate  reduction in the value of such Property on account of
such Casualty Defects,  as determined by the mutual agreement of the parties, or
if the parties are unable to agree on such  amount  prior to Closing,  then such
determination  shall be made by an  appraiser  chosen by the parties  (acting in
good  faith)  and   knowledgeable   in  the  field  to  determine   such  value.
Notwithstanding  anything to the contrary  contained  herein,  Sellers  shall be
entitled to retain all  insurance  proceeds and claims  against other parties in
respect of any such  Casualty  Defect which  occurs  prior to Closing  unless no
reduction is made in the Purchase Price as a result of such Casualty Defect,  in
which event  Purchaser  shall be entitled to the  insurance  proceeds and claims
against other parties arising from such Casualty Defect;  provided,  however, if
in the sole opinion of Purchaser,  any Casualty Defect  materially and adversely
affects the value of the Assets as a whole,  then  Purchaser may terminate  this
Agreement.

     6. Sellers' Representations, Warranties and Covenants. Sellers jointly
and severally represent, warrant and covenant to Purchaser that:

          (a) Each of the named  Sellers (i) is a person,  partnership  or other
entity duly organized,  validly  existing and in good standing under the laws of
the state of its organization (to the extent applicable); (ii) is duly qualified
to  transact  business in each  jurisdiction  where the nature and extent of its
business  and  properties  require  the  same in  order  for it to  perform  its
obligations under this Agreement;  and (iii) possesses all requisite  authority,
power,  licenses,  permits and  franchises  to conduct its business and execute,
deliver and comply with the terms and provisions of this Agreement

                                        7





and any other document,  instrument or agreement provided for herein,  including
the  Assignment,  all of which have been duly  authorized  and  approved  by all
necessary  corporate  or other  organizational  action  and for which no further
approval or consent is required;

          (b) This  Agreement  has been duly executed and delivered on behalf of
Seller,  and is binding and  enforceable  against each Seller in accordance with
its terms. All documents and instruments  required  hereunder to be executed and
delivered by each Seller shall have been duly executed and delivered at Closing,
and the execution, delivery and performance of this Agreement by such Seller and
the  consummation  of  transactions  contemplated  hereby will not  constitute a
breach of, an event of default  under,  a violation  of, or a conflict  with any
agreement  or other  instrument  to which such Seller is a party  (except to the
extent such instrument may be released at the Closing),  nor will the same cause
such Seller to be in violation of its Articles of  Incorporation  or Bylaws,  as
the case may be, or any applicable laws or regulations or any order of any court
or governmental agency having jurisdiction;

          (c) The Wells  (other  than Ship Shoal 69) are  currently  operated by
Bois D'Arc Operating  Corporation,  a Louisiana  corporation ("BOC"), and, after
Closing  will be operated by  Purchaser.  BOC shall  operate such Wells from the
date of this Agreement until Closing in a prudent,  good and workmanlike  manner
and in accordance  with all valid laws,  regulations  and orders of governmental
authorities having jurisdiction and in accordance with existing arrangements for
such operations;

          (d)  All ad  valorem,  property,  production,  severance,  excise  and
similar  taxes and  assessments  based on or  measured by the  ownership  of the
Property or the  Production  or the receipt of  proceeds  therefrom,  which have
become due and payable  prior to the date hereof  with  respect to the  Property
have  been  properly  paid,  and  Sellers'  allocable  share of such  taxes  and
assessments  which become due and payable prior to the Closing shall be properly
paid by Sellers;

          (e) No Seller has incurred any liability, contingent or otherwise, for
brokers' or finders'  fees in respect of this  transaction  for which  Purchaser
shall have any responsibility whatsoever;

          (f)  Prior to the  Closing,  Sellers  will pay or cause to be paid all
costs and expenses incurred in connection with the Property and will comply with
all contracts or other agreements  relating to the Property incurred while owned
by Sellers;

          (g) To the best of each  Seller's  information  and belief,  all laws,
regulations and orders of all governmental agencies having jurisdiction over the
Property have been and shall continue to be complied with until the Closing;

          (h) There are no first  rights of refusal,  consents,  authorizations,
preferential  rights,  options,  or  claims of a similar  nature  affecting  the
Property, other than those listed on Exhibit "C" (the "Consents");


                                        8





          (i) Sellers  shall,  upon  request,  subrogate  Purchaser to any claim
which Sellers may have against any third party, prior owner,  vendor or assignor
with  respect  to the  Property,  or the title  thereto  for  periods  after the
Effective Date;

          (j)  Except as set forth in  Exhibit  "D",  there are no  "imbalances"
which  allow  any  other  party  to make up  production  at any time  after  the
Effective  Date,  under any operating  agreement,  gas  balancing  agreement and
storage agreement,  gas transportation  agreement, gas processing or dehydration
agreement, or other similar agreement relating to the Property;

          (k) Except as listed on Exhibit "E" hereto,  no Seller has directly or
indirectly reserved or retained any recorded or unrecorded interest or rights in
any of the  Property,  and no Seller shall  reserve any  recorded or  unrecorded
executory interest or rights relating to the Property;

          (l) The Assignment to Purchaser shall contain a special  warranty (by,
through and under  Seller,  but not  otherwise)  by Sellers  that  Sellers  have
marketable title to the Property;

          (m) Except as set forth on Exhibit  "F"  hereto,  the  Property is not
subject to any  restriction,  reservation,  reversionary  interest,  drilling or
development obligation,  or other material obligation or burden on the operation
or the disposition of Production attributable to the Property;

          (n) No part  of any of the  Property  is  affected  by any  prepayment
arrangement  under any contract for the sale of oil or gas, or by any production
payment or any other arrangement for delivery of oil or gas produced from any of
the Property at some future time without Purchaser then or thereafter  receiving
full  payment  therefor,  and no third party now has or at Closing will have any
right to take  makeup gas for which it has  already  paid.  As of the  Effective
Date,  there are no volumes of makeup  gas owing or  accumulated  transportation
credits  due to gas  purchasers  on  account  of any  "take  or  pay"  or  other
provisions  of any  contract and Sellers have not produced or sold more than its
pro-rata share of the gas from any wells included in the Property;

          (o) There are no gas purchase or sale agreements, and no gas gathering
or transportation agreements affecting the Property, which are subject to a term
longer  than  thirty  (30)  days,  except as set forth on Exhibit  "G"  attached
hereto;

          (p) Without the prior written consent of Purchaser,  Sellers (i) shall
not enter into any new  agreements or  commitments  affecting the Property which
extend beyond the Closing (other than a formal  agreement  among BOC, Bayou City
Pipeline, Inc. and Gulfmark Energy, Inc., which contains the terms substantially
as set  forth  on  Exhibit  "H",  and (ii)  will not  modify  or  terminate  any
agreements affecting any of the Property, including, without limitation, any oil
and  gas  leases,  unitization  or  pooling  agreements,  operating  agreements,
pipeline agreements,  processing agreements and hydrocarbon sales contracts, and
(iii) will not further encumber,  sell, mortgage,  release, abandon or otherwise
dispose of any of the Property or any interests therein;

          (q)  There is not any  suit,  action or other  proceeding  pending  or
threatened  which  affects or relates to the  Property,  or seeks to restrain or
prohibit any Seller from selling or conveying the Property to Purchaser. Sellers
shall promptly notify  Purchaser of any such  proceedings  which may arise or be
threatened prior to Closing;

                                        9





          (r) There are no operating agreements with third parties affecting the
Property except those set forth on Exhibit "I" hereto;

          (s) No Seller has  knowledge  and has not  received  any notice of any
claimed default (or any event which, with the giving of notice or the passage of
time, or both, would constitute a default) under (i) the Leases, (ii) any order,
writ,  injunction or decree of any court,  commission or  administrative  agency
affecting  the Property or (iii) any other  agreement  affecting  the  Property.
Sellers shall promptly notify Purchaser of any such notice hereafter received by
any Seller  and the  occurrence  of any such  event of which any Seller  becomes
aware prior to Closing;

          (t) There are no tax partnerships affecting any of the Property;

          (u) No Production from any well on the Property has occurred in excess
of that permitted by law, orders or regulations;

          (v) There will be no material  injury or damage to any of the Property
which has not been fully repaired, replaced or rebuilt;

          (w) There has been no substantial  change in condition of the Property
between the date hereof and Closing;

          (x) All easements,  rights-of-way,  permits, crossing agreements,  and
surface  rights  included in the  Property  are in full force and effect and are
valid and subsisting,  and freely assignable, and all rentals and other payments
due thereunder  have been properly and timely paid and all conditions  necessary
to keep them in force have been duly performed;

          (y) Each of the Leases to be  conveyed  is valid and in full force and
effect,  and Sellers have  performed  all  obligations  required to be performed
under such  Leases,  or any other  instruments  and  agreements  relating to the
Properties, and is not in default thereunder;

          (z) There is attributable to the interests  conveyed not less than the
fractional NRI for each Property on Exhibit "A" hereto, and the  expense-bearing
interest to be conveyed does not exceed the fractional  interest specified under
"working interest" for each Property on Exhibit "A" hereto;

          (aa) All rentals,  bonuses and royalties on Production,  and any other
interests  payable  out of  Production,  have been  timely  and  fully  paid and
discharged,  and all conditions  necessary to keep the Leases in full force have
been performed and no proceeds from the sale of Production  attributable  to the
Property are currently being held in suspense by any purchaser thereof;

          (bb)  Sellers  have  not  collected  any  proceeds  from  the  sale of
Production  attributable  to the Property for any period prior to the  Effective
Date  which are  subject  to  refund,  or if so,  that any such  refund,  if not
otherwise  accounted for under this Agreement,  shall be the sole responsibility
of Sellers;


                                       10





          (cc) Except as set forth on Exhibit "J", there are no wells located on
the Property  that Sellers are obligated by law or contract to plug and abandon,
that  Sellers  will be obligated by law or contract to plug and abandon with the
lapse of time or notice,  or both,  because the well is not currently capable of
producing production in commercial quantities, or that are subject to exceptions
to a requirement  to plug and abandon  issued by a regulatory  authority  having
jurisdiction over the Property;

          (dd) To the best of each Seller's information and belief, there are no
presently existing  environmental  conditions (as defined by existing federal or
state regulations)  affecting the Property,  which might give rise to a cause of
action on behalf of any  governmental  agency  or third  party,  against  either
Purchaser or any Seller; and

          (ff) All capital expenditures have been fully paid.

          All the information, statistics, summaries and other data furnished by
Sellers  in  connection   with  the   transactions   contemplated   hereby  (the
"Information")  are  furnished  or  will be  furnished  for  Purchaser's  use at
Purchaser's  sole risk. All Information has been compiled or prepared by Sellers
based on their files and records and the  Information is believed to be correct,
but except as otherwise provided herein, Sellers make no representation, express
or implied, as to the accuracy, correctness, completeness or the adequacy of the
Information  and do  not  warrant  or  guarantee  the  Information  in any  way.
Purchaser shall be responsible  for making such  independent  investigation  and
evaluation of the Properties as Purchaser shall deem appropriate, realizing that
Sellers  assume no  liability  to  Purchaser or any other party for any reliance
which  may  be  placed  on  the  Information  or  any  statements  made  herein.
Notwithstanding  the foregoing,  Sellers  acknowledge  that  Purchaser  shall be
entitled  to seek  adjustment  to the  Purchase  Price for any  inaccuracies  or
omissions relating to the Information that Purchaser discovers during the Review
Period.

          Sellers  will  convey  the  Property   with  full   substitution   and
subrogation  in and to all rights and actions of warranty  that  Sellers have or
may have against all preceding owners and sellers of the Property.  Sellers make
no representation or warranty as to the quality,  marketability or environmental
condition of the wells,  fixtures,  facilities,  equipment,  lines and materials
located on the  Properties,  and the same are to be sold on an "as is, where is"
basis and  condition.  SELLERS MAKE NO WARRANTY,  EXPRESS OR IMPLIED,  AS TO THE
MERCHANTABILITY OR FITNESS FOR USE OF SUCH EQUIPMENT AND OTHER PERSONAL PROPERTY
LOCATED ON OR INCLUDED IN THE PROPERTIES.

     The provisions of this Section 6 shall survive  Closing for a period of two
(2) years following Closing.

     7. Purchaser's Representations. Purchaser represents to Sellers that:

          (a) Purchaser (i) is a corporation  duly organized,  validly  existing
and in good  standing  under  the  laws of the  State  of  Nevada;  (ii) is duly
qualified to transact business in each jurisdiction  where the nature and extent
of its business and  properties  require the same in order for it to perform its
obligations under this Agreement;  and (iii) possesses all requisite  authority,
power,  licenses,  permits and  franchises  to conduct its business and execute,
deliver and comply with the

                                       11





terms and  provisions of this  Agreement and any other  document,  instrument or
agreement  provided  for  herein,  all of which  have been duly  authorized  and
approved by all necessary  corporate action and for which no further approval or
consent is required;

          (b)  The  consummation  of  the  transactions   contemplated  by  this
Agreement  will  not  violate,  or be in  conflict  with  (i) any  agreement  or
instrument  to which  Purchaser  is a  party;  or (ii) any  judgment  or  decree
applicable to Purchaser as a party in interest with respect thereto; and

          (c) This  Agreement  has been duly executed and delivered on behalf of
Purchaser,  and at the Closing, all documents and instruments required hereunder
to be executed and  delivered by Purchaser  (or its  assignees)  shall have been
duly executed and delivered.

     The provisions of this Section 7 shall survive  Closing for a period of two
(2) years following Closing.

     8. Conditions to Obligations of Purchaser.  The obligations of Purchaser to
consummate  the  transaction  provided for herein are subject,  at the option of
Purchaser,  to the fulfillment on or prior to Closing,  of each of the following
conditions:

          (a) Representations. The representations and warranties of each Seller
herein  contained shall be true and correct in all material  respects at Closing
as  though  made on and as of  such  date  (unless  appropriate  adjustments  or
remediation has been made in accordance with Section 5 hereof).

          (b)  Performance.   Sellers  shall  have  performed  all  obligations,
covenants  and  agreements  hereunder and shall have complied with all covenants
and  conditions  contained in this Agreement to be performed or complied with by
it at or prior to the Closing.

          (c) Pending Matters.  No suit,  action or other  proceedings  shall be
pending or threatened  (a) against any Seller  before any court or  governmental
agency which might  result in  impairment  or loss of value as to such  Seller's
title  to any  part of the  Property  (other  than  normally  encountered  title
disputes which are not, as to the Property  involved,  material and which do not
represent serious threats to the loss of title); or (b) which seeks to restrain;
enjoin or otherwise  prohibit the consummation of the transactions  contemplated
by this Agreement.

          (d) Liability.  No liability  which affects,  in a materially  adverse
manner,  the Property or  Purchaser's  ability to receive the economic  benefits
therefrom  has been or is threatened to be asserted with respect to the Property
relating to pricing,  violations of laws,  rules or regulations  administered by
the Department of Energy, the Federal Energy Regulatory Commission, or any other
governmental agency or department.

          (e)  Defects.  No  Defects  shall be  present,  which are not cured by
Sellers,  waived by  Purchaser or for which no  adjustment  has been made to the
Purchase Price as provided herein.

          (f) Records and Access.  Sellers shall have afforded Purchaser and its
officers, employees and representatives timely access to the Records.

                                       12





          (g) Purchaser named Operator. Purchaser shall be named operator of the
Properties that are presently operated by BOC.

     It is  understood  by the  parties  that  the  assignment  of the  State of
Louisiana Leases must be approved by the State Mineral Board, and the assignment
of the Federal Leases must be approved by the Minerals Management  Service,  but
such administrative procedures shall not delay in any manner the delivery of the
Assignments by Sellers or the payment by Purchaser of the Purchase Price.

     9. Sellers' Obligation at Closing. At the Closing, Sellers shall deliver to
Purchaser the  following  items  (except that the Interim  Settlement  Statement
shall be delivered five (5) days prior to the date of Closing):

          (a) The Assignments, duly executed and acknowledged by each Seller;

          (b) Duly executed and  acknowledged  releases of all liens and burdens
on the Property or on Production therefrom or attributable thereto;

          (c) Executed  transfer  orders (or letters in lieu thereof) or amended
Division Orders addressed to all purchasers of production from the Property;

          (d) Any other executed  documents or instruments which may be required
to consummate the transactions  contemplated  herein and to fully vest Purchaser
with title to the Property as contemplated hereby;

          (e) The  Interim  Settlement  Statement,  which  shall  set  forth the
Purchase Price and adjustments  thereto provided for in this Agreement which are
or may be  determined  at or  prior  to the  Closing,  such  Interim  Settlement
Statement to be subject to later adjustment pursuant to Section 14 hereof; and

          (f) All of the Records,  including any  proprietary  and seismic data;
provided  that  Sellers  shall have the right,  at their  expense to make copies
thereof.  To the extent Sellers are unable to transfer or assign any proprietary
data or licenses,  Sellers will use their best efforts in assisting Purchaser to
obtain all licenses necessary to operate the Property.

     10. Purchaser's Obligations at Closing. At the Closing, Purchaser shall:

          (a)  Deliver  to Seller  the  Purchase  Price,  with  adjustments  and
credits,  in cash  or  other  immediately  available  funds  (and  subject  to a
subsequent adjustment pursuant to Section 14); and

          (b) Execute any other  documents or instruments  which may be required
to consummate the transactions contemplated herein.

     11. Notices. All notices,  demands and requests which may be given or which
are required to be given by either  party to the other shall be in writing.  Any
notice, demand or communication  required or permitted hereunder shall be deemed
to be delivered on actual receipt or three (3) days

                                       13





after being sent by Federal  Express or Certified  Mail to Sellers or Purchaser,
which ever occurs first, respectively, as follows:

         SELLER:                             PURCHASER:

c/o Bois d'Arc Operating Corporation      Comstock Oil & Gas -- Louisiana, Inc.
3330 Monte Villa Parkway,                 5005 LBJ Frwy., Suite 1000
Suite 130                                 Dallas, TX 75244
Bothell, WA 98021                         Attn:  Mr. M. Jay Allison
Attn:    Mr. Wayne L. Laufer              President and Chief Executive Officer
President                                 Telephone:  (972) 701-2000
Telephone:        (206) 481-8498          Fax:        (972) 701-2111
Fax:              (206) 481-9413

or such other address as Purchaser or Sellers may, from time to time,  designate
pursuant to the terms hereof.  A facsimile  transmission  shall be considered an
original document for purposes of providing notice under this section.

     12.  Furnishing  Data and  Information.  Sellers  also  agree  to  promptly
cooperate in providing  all Records  necessary  for Purchaser to conduct its due
diligence  under  the  terms of this  Agreement.  For a period of five (5) years
following  the  Closing,  Purchaser  shall allow  Sellers  access to the Records
during normal business hours of Purchaser,  and Sellers shall have the right, at
their own expense,  to make copies thereof.  In addition,  for a period of three
(3) years following the Closing,  Purchaser shall provide Sellers access to well
data for new wells drilled by Purchaser on the Leases.

     13. Post-Closing Adjustments.  As soon as practicable after the Closing and
in any event within 60 days after Closing,  Sellers shall prepare and deliver to
Purchaser,  in accordance  with this Agreement and GAAP, a statement (the "Final
Settlement  Statement")  setting forth each  adjustment  or payment  pursuant to
Section 4 hereof  that was not  finally  determined  as of the  Closing  ("Post-
Closing   Adjustments")   and  showing  the  calculation  of  such  Post-Closing
Adjustments  and the aggregate  amount  thereof.  Within ten business days after
receipt of the Final Settlement Statement,  Purchaser shall deliver to Sellers a
written report  containing  any changes that  Purchaser  proposes be made to the
Final Settlement  Statement.  The parties undertake to agree with respect to the
amounts of such Post-Closing Adjustments no later than 90 days after the Closing
Date.  The date upon which such agreement is reached or upon which the aggregate
amount of the  adjustments  are finally  established  shall be herein called the
"Final Settlement Date". Sellers shall pay to Purchaser,  or Purchaser shall pay
to Sellers,  as the case may be,  within five (5) business  days after the Final
Settlement  Date the amount of such  adjustments  (as finally  established),  by
means of wire transfer in immediately available funds or by means of bank check.

     14. Failure To Perform.  If Sellers should fail to fully and timely perform
any of their obligations hereunder, or should fail to consummate the sale of the
Property,  except due to the Purchaser's default,  Purchaser may, at its option,
enforce specific  performance of this Agreement,  bring suit for damages against
the Sellers, or terminate this Agreement.  If Purchaser should fail to fully and
timely  perform any of its  obligations  hereunder,  and fail to consummate  the
purchase of the

                                       14





Property,  except  due to any  Seller's  default  or  other  provisions  in this
Agreement  that permit  Purchaser to terminate this  Agreement,  Sellers may, at
their option,  enforce  specific  performance of this Agreement,  bring suit for
damages against Purchaser, or terminate this Agreement.

     15. Termination.

          (a) This  Agreement  may be  terminated at any time at or prior to the
Closing:

               (1) by mutual written  consent of Purchaser and the Selling Group
Representative;

               (2) by  Purchaser  on the date of Closing if the  conditions  set
forth in Section 8 have not been  satisfied in all respects by Sellers or waived
by Purchaser in writing by the Closing;

               (3) by  Purchaser  or the  Selling  Group  Representative  if the
Closing  shall not have  occurred  on or before  December  22,  1997;  provided,
however,  that no party hereto can so terminate  this Agreement if such party is
at such time in material breach of any provision of this Agreement;

               (4) by any party if any governmental  authority shall have issued
an order,  judgment or decree or taken any other action  challenging,  delaying,
restraining,  enjoining,  prohibiting or invalidating the consummation of any of
the transactions contemplated herein; and

               (5) by Purchaser if the aggregate  amount of all  adjustments  to
the Purchase Price for Defects exceeds 20% of the Purchase Price.

          (b) In the event that  Closing does not occur as a result of any party
exercising its right to terminate pursuant to Section 15(a), then this Agreement
shall be null and void and no party shall have any rights or  obligations  under
this  Agreement,  except that nothing  herein  shall  relieve any party from any
liability for any breach hereof.

     16. Indemnification by Sellers.

          (a) Sellers agree to jointly and severally indemnify and save and hold
harmless  Purchaser  against and from, any loss,  damage or expense sustained by
Purchaser  arising out of or  resulting  from any breach of any of any  Seller's
representations and warranties made hereunder and not waived by Purchaser.

          (b) Sellers agree to jointly and severally indemnify and save and hold
harmless Purchaser against all claims,  liabilities,  costs, expenses,  windfall
profit  taxes and  liability,  arising out of the  ownership or operation of the
Property,  and based upon the occurrence of events or the accrual of obligations
or liabilities prior to Closing.

          (c) If any claims for brokerage fees are asserted against Purchaser in
connection with this transaction based upon alleged  commitments made by Seller,
Seller shall indemnify

                                       15





Purchaser  against all such claims and reimburse  Purchaser  for all  reasonable
expenses incurred in responding to such claims,  including reasonable attorney's
fees.

          (d) Notwithstanding anything to the contrary contained herein, Sellers
shall  not be  required  to  indemnify  Purchaser  for  matters  resulting  from
Purchaser's own gross negligence or willful misconduct.

          (e) The provisions of this Section 16 shall survive Closing.

     17. Indemnification by Purchaser.

          (a) Purchaser  agrees to indemnify and save and hold harmless  Sellers
against and from, any loss,  damage or expense  sustained by Sellers arising out
of or  resulting  from any  breach  of any of  Purchaser's  representations  and
warranties made hereunder and not waived by Sellers.

          (b) Purchaser shall assume and hereby agrees to pay, honor,  discharge
and  perform  fully  and  timely,  the  obligations  and  liabilities   directly
associated with each Seller's  interest in the Property,  which are attributable
to the period of time from and after the Closing.

          (c) Purchaser  agrees to indemnify and save and hold harmless  Sellers
against all claims,  costs,  expenses,  windfall  profits taxes and  liabilities
arising out of the  ownership  or  operation  of the Property and based upon the
occurrence of events, the accrual of obligations or liabilities or the existence
of conditions on and subsequent to the Closing (but not including those incurred
with  respect to the purchase of each  Seller's  interest in the Property or the
negotiations leading to such purchase).

          (d) If any claims for brokerage fees are asserted  against  Sellers in
connection  with  this  transaction  based  upon  alleged  commitments  made  by
Purchaser,  Purchaser  shall  indemnify  Seller  against  all  such  claims  and
reimburse  Sellers for all  reasonable  expenses  incurred in responding to such
claims, including reasonable attorney's fees.

          (e) Purchaser  agrees to indemify and save and hold  harmless  Sellers
for any  losses  they may incur  resulting  from  Purchaser's  operation  of the
Properties after the date of Closing,  notwithstanding that Purchaser is not the
operator of record.

          (f)  Notwithstanding   anything  to  the  contrary  contained  herein,
Purchaser shall not be required to indemnify  Sellers for matters resulting from
a Seller's own gross negligence or willful misconduct.

          (g) The provisions of this Section 17 shall survive Closing.

     18.  Environmental  Matters.  The Properties  have been used for exploring,
developing  and producing  oil and gas.  Spills of wastes,  crude oil,  produced
water,  hazardous substances,  and other materials may have occurred in the past
on the lease or in connection with the Properties.  There is a possibility  that
there are currently unknown, abandoned wells, plugged wells, pipelines and other
equipment on or  underneath  the  Properties.  It is the intent of Purchaser and
Sellers that all

                                       16





liability associated with the above matters, as well as any liability to plug or
replug such wells in  accordance  with the  applicable  rules,  regulations  and
requirements of governmental agencies be passed to Purchaser at Closing and that
Purchaser  shall assume all  liability  for such matters and all claims  related
thereto, except in all instances for matters resulting from a Seller's own gross
negligence  or willful  misconduct.  Additionally,  the  Properties  may contain
asbestos,  hazardous  substances,  or Naturally Occurring  Radioactive  Material
("NORM"). NORM may affix or attach itself to the inside of wells, materials, and
equipment as scale or in other forms; wells,  materials and equipment located on
the lease or included in the Properties  may contain NORM;  and NORM  containing
material  may have been buried or otherwise  disposed of on the Leases.  Special
procedures may be required for remediating, removing, transporting and disposing
of asbestos, NORM, hazardous substances and other materials from the Properties,
and Purchaser  assumes all liability for any assessment,  remediation,  removal,
transportation,  and disposal of these  materials and  associated  activities in
accordance  with  the  applicable   rules,   regulations  and   requirements  of
governmental agencies.  Notwithstanding the foregoing,  Sellers acknowledge that
Purchaser  shall be entitled to seek  adjustment  to the Purchase  Price for any
environmental  matters,  including  NORM,  that  could  result in  liability  to
Purchaser that Purchaser discovers during the Review Period.

     19. Like-Kind  Exchange.  Each Seller shall have the right to designate the
sale of any of its respective  interest in the Properties as a  non-simultaneous
like-kind  exchange under Section 1031 of the Internal  Revenue Code of 1986, as
amended. Each Seller reserve the right to assign its rights under this Agreement
to a qualified  intermediary in order to effect a like-kind exchange.  Purchaser
agrees to cooperate in the transfer of funds to effect this exchange;  provided,
however, that Sellers hereby agree to indemnify and hold Purchaser harmless from
any and all liabilities,  costs,  claims or damages  resulting from the exchange
and each Seller  acknowledges that any assignment of its rights pursuant to this
Section 19 shall not relieve it of any of its  obligations  to  Purchaser  under
this Agreement. Sellers acknowledge that Purchaser makes no representation as to
the tax  consequences  of such  like-kind  exchange  and that  such  Seller  has
consulted its own tax counsel regarding the same.

     20. Seller Utilization of Production Facilities. Sellers reserve the right,
upon mutual  agreement  with  Purchaser,  to have access to and utilize  certain
existing  platform  space,  pipeline  capacity  and  processing  equipment  (the
"Production  Facilities") which Sellers are conveying to Purchaser hereunder. If
Sellers and  Purchaser  cannot  mutually  agree,  the  parties  agree to allow a
facilities  design engineer who is familiar with the Production  Facilities from
Eagle Consulting,  LLC of Gibson,  Louisiana to determine if Sellers' request to
utilize the Production Facilities can be accommodated by Purchaser without undue
adverse  impact upon  Purchaser's  operations.  Said  utilization  of Production
Facilities  will be charged at Purchase's  cost to Sellers.  Purchaser  will not
charge Sellers any platform boarding, space utilization, throughput, processing,
tariffs  or any  other  fees  or  costs.  Sellers  will be  responsible  for all
construction  costs,  equipment  costs and  Production  Facility  tie-in  costs.
Purchaser also agrees to provide lease operating  (pumping) services at its cost
for Sellers'  wells which may be utilizing the  Production  Facilities.  Sellers
anticipate that they may utilize the Production  Facilities at Sellers' platform
located in South Pelto Block 1 and may need to utilize the Caillou  Boca central
facility water handling facilities and tie-in to a gas sales pipeline connecting
to Texas Gas Transmission  metering platform station No. 0667M. Sellers agree to
indemnify Purchaser for all losses and liabilities  Purchaser may incur pursuant
to Sellers' utilization of the Production Facilities.

                                       17





     21. Selling Group Representative.  Each Seller hereby authorizes Bois D'Arc
(the "Selling Group  Representative")  to make and receive payments hereunder on
behalf of such  Seller,  to give and  receive  notices on behalf of such  Seller
hereunder (and promptly send copies of any notice to each affected  Seller),  to
agree upon any adjustments to the Purchase Price  hereunder  consistent with the
terms of this Agreement on behalf of such Seller,  to agree to any extensions of
the  Closing  Date on behalf of such  Seller  and to  otherwise  take such other
actions on behalf of such Seller as may be  necessary or desirable to effect the
transactions  contemplated  hereby.  Purchaser  may  rely  upon  any  instrument
executed or other action taken by the Seller Group  Representative  on behalf of
Sellers pursuant to this Section 19 to the same extent as if such instrument had
been executed or action had been taken by each Seller.

     22. Miscellaneous.

          (a) If any term or provision of this  Agreement is held to be illegal,
invalid or  unenforceable,  the  legality,  validity and  enforceability  of the
remaining terms and provisions of this Agreement shall not be affected  thereby,
and in lieu of each such  illegal,  invalid or  unenforceable  term or provision
there  shall  be added  automatically  to this  Agreement  a  legal,  valid  and
enforceable  term or  provision  as similar as possible to the term or provision
declared illegal, invalid or unenforceable.

          (b)  Either  Sellers  or  Purchaser  shall have the right to waive any
requirement  contained  in this  Agreement,  which is  intended  for the waiving
party's benefit,  but except as otherwise  specifically  provided  herein,  such
waiver shall be effective only if in writing and executed by the party for whose
benefit such requirement is intended;  provided,  however,  that any such waiver
shall not be construed as a waiver of any other benefit  accruing to the waiving
party hereunder.

          (c) The  captions  used in  connection  with  this  Agreement  are for
convenience  only and shall not be deemed to expand or limit the  meaning of the
language of this Agreement.

          (d)  Words  of any  gender  used in this  Agreement  shall be held and
construed to include any other gender,  and words in the singular  shall be held
to include the plural, unless the context otherwise requires.

          (e)  Any  proposed  press  releases  pertaining  to  the  transactions
contemplated  hereby shall be approved by both parties prior to the  publication
of such press release; however, such approval shall not be unreasonably withheld
by either of the parties.  Notwithstanding the foregoing,  either party shall be
permitted to make such public  disclosures  pertaining  to this matter as may be
required,  in the reasonable  opinion of counsel for such party,  to comply with
applicable state and federal securities laws.

          (f) Sellers agree that, on or before the Closing,  they will not carry
on any  negotiations  with any  third  party,  for the sale or  transfer  of the
Property, without the prior written consent of Purchaser.

          (g) This  Agreement and all of the  transactions  contemplated  herein
shall be governed by and construed in  accordance  with the laws of the State of
Louisiana.


                                       18





          (h) This Agreement  embodies the entire agreement  between Sellers and
Purchaser  with respect to the subject  matter hereof and  supersedes  all prior
agreements, whether written or oral.

          (i) Except as otherwise  specifically  provided herein, this Agreement
may not be amended  except by an  agreement  in writing  executed by Sellers and
Purchaser.

          (j) This  Agreement  shall be binding upon and inure to the benefit of
Sellers and Purchaser and their respective legal representatives, successors and
assigns. It is expressly understood and agreed that Purchaser's rights hereunder
are freely assignable,  and the term "Purchaser" as used in this Agreement shall
mean and include Purchaser's successors and assigns.

          (k) This Agreement may be executed in any number of counterparts, each
of which shall be deemed to be an original,  and all of which shall be deemed to
be one and the same instrument.

          (l) In addition to the acts and deeds recited herein and  contemplated
to be performed,  Sellers and Purchaser hereby agree to perform,  execute and/or
deliver at and after Closing any and all such further acts, deeds and assurances
as may be reasonably  required to consummate the  transactions  contemplated  by
this Agreement.

          (m) This  Agreement  may be  executed  in  counterpart  by each of the
parties  hereto  as if  each  had  executed  the  same  copy  hereof,  and  each
counterpart, when fully executed, shall constitute an original for all purposes.

          (n) It is  understood  and agreed that in the event any of the working
interest  owners  of the  Properties  do not join in the sale of the  Properties
pursuant to this  Agreement,  but such working  interest  owners within four (4)
months  following the date of Closing sell or  contractually  agree to sell (and
such  sale  is  thereafter  consummated)  to  Purchaser  their  interest  in the
Properties for a greater price than paid to Sellers hereunder,  Purchaser agrees
to pay  Sellers  hereunder  the  difference  between  the price  paid to Sellers
hereunder and the price paid to such working interest owners subsequently.

          (o) In the event Purchaser  charges a third party a tariff,  charge or
other fee ("Transportation Fees") for use of the La Cuisine pipeline, La Cuisine
shall be entitled to 45% of all Transportation Fees received by Purchaser.

                                       19




EXECUTED as of the date first above written.

                                   PURCHASER:

                                   COMSTOCK OIL & GAS -- LOUISIANA, INC.


                                    By:/s/M. JAY ALLISON
                                    --------------------
                                      M. Jay Allison
                                      President and Chief
                                      Executive Officer


                                   SELLERS:

                                   BOIS D'ARC RESOURCES


                                   By:/s/WAYNE L. LAUFER
                                  -----------------------
                                      Wayne L. Laufer
                                      Partner


                                   By:/s/GARY W. BLACKIE
                                   ----------------------
                                      Gary W. Blackie
                                      Partner


                                   BOIS D'ARC OFFSHORE, LLC


                                   By:/s/WAYNE L. LAUFER
                                   -----------------------
                                   Title: Manager


                                   GARY W. AND SALLY L. BLACKIE,
                                   Husband and Wife


                                   /s/GARY W. BLACKIE
                                   --------------------

                                   /s/SALLY L. BLACKIE
                                   --------------------

                                       20


                                   /s/WAYNE L. LAUFER, D.P.D.A.
                                   ---------------------------
                                   SALLY LAUFER BRADY


                                   /s/DR. B CHANDRASEKHAR
                                   --------------------
                                   DR. B. CHANDRASEKHAR


                                   /s/NEAL CLEMENT
                                   ---------------------
                                   NEAL CLEMENT


                                   /s/JOHN T. COOK
                                   ---------------------
                                   JOHN T. COOK


                                   DALLAS PETROLEUM PARTNERS


                                   By:----------------------
                                   Title:-------------------


                                   ELIM CORPORATION


                                   By:/s/NEAL CLEMENT
                                   -------------------------
                                   Title:Partner


                                   -------------------------
                                   PAIGE PRICE FRANKLIN


                                   GRINER OIL & GAS


                                   By:/s/CHARLES H. GRINER, JR.
                                   ----------------------------
                                   Title:Secretary


                                   LESTER HADDOX, INC.


                                   By:/s/LESTER HADDOX
                                   ---------------------------
                                   Title:President

                                       21



                                   /s/D. M. HARRIS
                                   -----------------------------
                                   D. MICHAEL HARRIS, Husband of
                                   KAROL KAYE HARRIS


                                   HAP HEDERMAN OIL & GAS


                                   By:/s/HAP HEDERMAN
                                   ------------------------
                                   Partner


                                   CARL HERRIN OIL & GAS


                                   By:/s/CARL HERRIN
                                   -------------------------
                                   Title:Partner


                                   LATTA PRICE HERRING

                                   -------------------------


                                   JIMX INC.


                                   By:-----------------------
                                   Title:


                                   JAY PETROLEUM INVESTMENTS,
                                   A PARTNERSHIP

                                   By:/s/WILLIAM LANGFORD
                                   --------------------------
                                   Title:Managing Partner


                                   LA CUISINE PIPELINE


                                   By:/s/WAYNE LAUFER
                                   --------------------------
                                   Title:President

                                       22



                                   WAYNE L. AND GAYLE LAUFER,
                                   Husband and Wife

                                   /s/WAYNE L. LAUFER
                                   --------------------------

                                   /s/GAYLE M. LAUFER
                                   --------------------------


                                   LAVA EXPLORATION, INC.


                                   By:/s/STEPHEN L. HUGHEY
                                   --------------------------
                                   Title:President



                                   MARATHON ENERGY


                                   By:-----------------------
                                   Title:


                                   METROW ENERGY, LLC


                                   By:/s/
                                   --------------------------
                                   Title:


                                   /s/ARTHUR J. PASMAS
                                   --------------------------
                                   ARTHUR J. PASMAS


                                   /s/RICHARD PRICE
                                   --------------------------
                                   RICHARD PRICE


                                   PROBE RESOURCES


                                   By:/s/B.R.EUBANKS   
                                   --------------------------
                                   Title:President

                                       23




                                   RETLAW OIL & GAS, INC.


                                   By:/s/BARBARA B. SULLIVAN
                                   ---------------------------
                                   Title:President


                                   SAGE OIL


                                   By:/s/
                                   --------------------------
                                   Title:


                                   HOWARD E. STOVER


                                   STOVER PROPERTIES, LP


                                   By:/s/HOWARD E. STOVER
                                   --------------------------
                                   Title:General Partner


                                   TENKAY RESOURCES, INC.

                                   Subject to the attached addendum A
                                   By:/s/D. KEITH CREWS 
                                   --------------------------
                                   Title:VICE PRESIDENT


                                   WING & ASSOCIATES


                                   By:/s/R.WING
                                   --------------------------
                                   Title:Owner


                                       24










                                CREDIT AGREEMENT

                          dated as of December 9, 1997




                            COMSTOCK RESOURCES, INC.,

                            COMSTOCK OIL & GAS, INC.,

                      COMSTOCK OIL & GAS - LOUISIANA, INC.,

                             COMSTOCK OFFSHORE, LLC,

                             THE BANKS PARTY HERETO,

                  THE FIRST NATIONAL BANK OF CHICAGO, AS AGENT

                                       AND

                  BANK ONE, TEXAS, N.A., AS DOCUMENTATION AGENT












                                TABLE OF CONTENTS


SECTION 1. Definitions                                                        1
     1.1 Certain Definitions..................................................1
     1.2 Other Definitions; Rules of Construction.............................9

SECTION 2. The Commitments....................................................9
     2.1 Advances.............................................................9

SECTION 3. The Advances.......................................................10
     3.1 Disbursement of Advances.............................................10
     3.2 Conditions of Advances...............................................12
     3.3 Letter of Credit Reimbursement Payments..............................13
     3.4. Withholding Tax Exemption...........................................15

SECTION 4. Payment and Prepayment; Fees; Change in Circumstances..............15
     4.1 Principal Payments...................................................15
     4.2 Interest Payment.....................................................16
     4.3 Fees.................................................................17
     4.4 Payment Method.......................................................17
     4.5 No Setoff or Deduction...............................................17
     4.6 Payment on Non-Business Day; Payment Computations....................17
     4.7. Yield Protection....................................................18
     4.8. Changes in Capital Adequacy Regulations.............................18
     4.9. Availability of Types of Advances...................................18
     4.10. Funding Indemnification............................................19
     4.11. Bank Statements; Survival of Indemnity.............................19

SECTION 5. Security...........................................................19
     5.1 Security Documents...................................................19
     5.2 Guaranty.............................................................33
     5.3 Additional Security Documents........................................20

SECTION 6. Representations and Warranties.....................................20
     6.1 Corporate Existence and Power........................................20
     6.2 Corporate Authority..................................................20
     6.3 Binding Effect.......................................................20
     6.4 Subsidiaries.........................................................20
     6.5 Liens................................................................21
     6.6 Litigation...........................................................21
     6.7 Financial Condition..................................................21
     6.8 Use of Advances......................................................21
     6.9 Security Documents...................................................21
     6.10 Consents, Etc.......................................................21
     6.11 Taxes...............................................................21
     6.12 Title to Properties.................................................22
     6.13 ERISA...............................................................22
     6.14 Environmental and Safety Matters....................................22
     6.15 Direct Benefit......................................................23

CREDIT AGREEMENT                                                         Page ii



     6.16 Solvency............................................................23
     6.17 Disclosure..........................................................23


SECTION 7. Covenants..........................................................23
     7.1 Affirmative Covenants................................................23
          (a) Preservation of Corporate Existence, Etc........................23
          (b) Compliance with Laws, Etc.......................................23
          (c) Maintenance of Properties; Insurance............................24
          (d) Reporting Requirements..........................................24
          (e) Access to Records, Books, Etc...................................25
     7.2 Negative Covenants...................................................26
          (a) Current Ratio...................................................26
          (b) Tangible Net Worth..............................................26
          (c) Interest Coverage Ratio.........................................26
          (d) Indebtedness....................................................26
          (e) Liens...........................................................26
          (f) Merger; Acquisitions; Etc.......................................27
          (g) Disposition of Assets; Etc......................................27
          (h) Nature of Business..............................................28
          (i) Investments and Advances........................................28
          (j) Dividends.......................................................28
          (k) Transactions with Affiliates....................................28
          (l) Additional Covenants............................................38
          (m) FinancialContracts..............................................28

SECTION 8. Default............................................................29
     8.1 Events of Default....................................................29
     8.2 Remedies.............................................................30
     8.3 Distribution of Proceeds.............................................31
     8.4 Letter of Credit Liabilities.........................................32

SECTION 9. The Agent, the Co-Agent and the Banks..............................32
     9.1 Appointment; Nature of Relationship..................................32
     9.2 Powers...............................................................32
     9.3 General Immunity.....................................................33
     9.4 No Responsibility for Loans, Recitals, etc...........................33
     9.5 Action on Instructions of Banks......................................33
     9.6 Employment of Agents and Counsel.....................................33
     9.7 Reliance on Documents; Counsel.......................................33
     9.8 Agent's Reimbursement and Indemnification............................33
     9.9 Notice of Default....................................................34
     9.10 Rights as a Bank....................................................34
     9.11 Bank Credit Decision................................................34
     9.12 Successor Agent.....................................................34
     9.13 Pro Rata Sharing by Banks...........................................35
     9.14 Determination of Borrowing Base, Etc................................35

SECTION 10. Miscellaneous.....................................................36
     10.1 Amendments; Etc.....................................................36
     10.2 Notices.............................................................36
     10.3 Conduct No Waiver; Remedies Cumulative..............................36

CREDIT AGREEMENT                                                        Page iii



     10.4 Reliance on and Survival of Various Provisions......................37
     10.5 Expenses; Indemnification...........................................37
     10.6 Successors and Assigns..............................................38
     10.7 Subsidiaries as Borrowers...........................................38
     10.8 CHOICE OF LAW.......................................................41
     10.9 Table of Contents and Headings......................................41
     10.10 Construction of Certain Provisions.................................41
     10.11 Integration and Severability.......................................41
     10.12 Interest Rate Limitation...........................................41
     10.13 Counterparts.......................................................42
     10.14 Independence of Covenants..........................................42
     10.15 Consent to Jurisdiction............................................42
     10.16 JURY TRIAL WAIVER..................................................42
     10.17 Joint and Several Obligations; Contribution Rights; Savings Clause.42
     10.18 Consents to Renewals, Modifications and Other Actions and Events...44
     10.19 Waivers, Etc.......................................................44
     10.20 Confidentiality....................................................45


EXHIBITS
          A...................Consent and Amendment of Security Documents
          B...................Note
          C...................Request for Loan
          D...................Assignment and Acceptance

SCHEDULES

          6.4.................Subsidiaries









                                CREDIT AGREEMENT


     THIS AGREEMENT,  dated as of December 9, 1997, is among COMSTOCK RESOURCES,
INC.  a  Nevada  corporation  ("CRI"),  COMSTOCK  OIL  &  GAS,  INC.,  a  Nevada
corporation ("COG"), COMSTOCK OIL & GAS - LOUISIANA,  INC., a Nevada corporation
("COGL"),   COMSTOCK   OFFSHORE,   LLC,  a  Nevada  limited   liability  company
("Offshore")  (CRI,  COG,  COGL and Offshore  may  hereinafter  collectively  be
referred  to as the  "Borrowers"),  the lenders  party  hereto from time to time
(collectively,  the "Banks" and individually,  a "Bank"), BANK ONE, TEXAS, N.A.,
as  documentation  agent  for the Banks (in such  capacity,  the  "Documentation
Agent") and THE FIRST NATIONAL BANK OF CHICAGO,  as agent for the Banks (in such
capacity, the "Agent").

                                    RECITALS

     A. CRI, COG, COGL,  Comstock  Offshore  Energy,  Inc.(now merged into COG),
Comstock  Natural  Gas,  Inc.  (now merged into COG) and Black Stone Oil Company
(now merged into COG), as borrowers,  the banks party thereto,  Bank One, Texas,
N.A.,  as co-agent  for such banks and The First  National  Bank of Chicago,  as
agent for such banks,  executed a Credit  Agreement dated as of August 13, 1996,
as amended  (the  "Existing  Credit  Agreement"),  which  amended and restated a
Credit  Agreement dated as of May 1, 1996,  which in turn amended and restated a
Credit Agreement dated as of July 31, 1995, which in turn amended and restated a
Credit  Agreement dated as of September 30, 1994, as amended,  and which in turn
amended and  restated a Credit  Agreement  dated as of  November  15,  1993,  as
amended.

     B. The  Borrowers have  requested  that the  Banks  amend and  restate  the
Existing  Credit  Agreement as herein  provided,  replacing and  refinancing the
indebtedness  thereunder  with a five year  secured  revolving  credit  facility
providing  for  revolving  credit  loans in the  aggregate  principal  amount of
$290,000,000,  including a $5,000,000 letter of credit subfacility  participated
in by all the  Banks,  and the  Banks are  willing  to  establish  such a credit
facility in favor of the  Borrowers  and amend and restate the  Existing  Credit
Agreement on the terms and conditions herein set forth.

                                    AGREEMENT

     In  consideration  of the  premises  and of the  mutual  agreements  herein
contained,  the parties hereto agree that the Existing Credit Agreement shall be
amended and restated as follows:


     SECTION 1. Definitions

     1.1. Certain  Definitions.  As used herein,  the following terms shall have
the following respective meanings:

     "Advances" shall mean any Loan or any Letter of Credit Advance.

     "Advance  Date"  shall  mean  each  date for the  making,  continuation  or
conversion of an Advance as specified in the notice  delivered by the Borrowers,
or any of them, permitted by this Agreement.

     "Affiliate",  when used with  respect  to any  Person  shall mean any other
Person which,  directly or indirectly,  controls or is controlled by or is under
common control with such Person or any other Person which is owned 5% or more by
such Person or any Subsidiary or other Affiliate of such Person. For purposes of
this  definition  "control"  (including  the  correlative  meanings of the terms
"controlled  by" and "under common control  with"),  with respect to any Person,

CREDIT AGREEMENT                                                        Page 1




shall mean possession,  directly or indirectly,  of the power to direct or cause
the direction of the management and policies of such Person, whether through the
ownership of voting securities or otherwise.

     "Applicable  Margin"  shall  mean,  with  respect to any  Eurodollar  Loan,
Floating  Rate  Loan and  Commitment  Fee,  as the case may be,  the  applicable
percentage  set forth in the table below based upon a fraction,  expressed  as a
percentage,  determined  as of the last day of each  calendar  month of CRI, the
numerator of which is the daily average of the Advances  outstanding during such
calendar  month  and the  denominator  of  which  is the  daily  average  of the
Borrowing Base during such calendar month (the "Utilization Percentage"):

================================================================================
 Utilization Percentage     Eurodollar             Floating         Commitment
"UP"                     Rate Loan and Letter     Rate Loan         Fee under
                             of Credit Fee                        Section 4.3(a)
- --------------------------------------------------------------------------------
UP greater than or
 equal to 95%                   1.50%               0.50%             .375%  
- --------------------------------------------------------------------------------
UP greater than or
 equal to 90% less
 than 95%                       1.375%              0.375%            .25%
- --------------------------------------------------------------------------------
UP greater than or
  equal to 75% less
  than 90%                      1.125%              0.125%            .25%
- --------------------------------------------------------------------------------
UP less than 55% and
  greater than 75%              0.875%              0.00%             .225%
- --------------------------------------------------------------------------------
UP greater than 55%             0.625%              0.00%             .20%
================================================================================

The Utilization  Percentage  shall be determined by the Agent at the end of each
calendar  month and shall remain in effect for the following  calendar  month of
CRI, and the Agent shall adjust the Applicable  Margin upon such  determination,
provided  that (a) the Agent shall also  determine  the  Utilization  Percentage
promptly  after any public  offering of common stock or offering under Rule 144A
pursuant  to the  Securities  Act of  1933  of  subordinated  debt  (if  allowed
hereunder) of CRI and adjust the Applicable Margin upon such determination,  and
(b) as of the Effective Date and until the first time the  Applicable  Margin is
to be adjusted,  the Applicable Margin will be based on a Utilization Percentage
of greater 90% and less 95%.  Notwithstanding the above or anything else in this
Agreement,  upon  and  during  the  continuance  of any  Event of  Default,  the
Applicable  Margin  shall be based on the  highest  possible  Applicable  Margin
described in the table above, regardless of the Utilization Percentage.

     "Bank   Obligations"   shall  mean  all   indebtedness,   obligations   and
liabilities,  whether now or hereafter arising, of the Borrowers to the Agent or
any Bank pursuant to any of the Loan Documents.

     "Borrowing  Base" shall mean an amount equal to the value of the Collateral
determined by the Documentation  Agent and the Agent (or by each of the Banks as
described in Section 9.14) in their sole discretion,  based on the Documentation
Agent's,  the Agent's or each Bank's, as the case may be, customary and standard
practices  in  lending to oil and gas  companies  generally,  including  without
limitation their standard  engineering criteria and oil and gas lending criteria
(and it is acknowledged  and agreed that such customary and standard  practices,
including without  limitation such engineering  criteria and oil and gas lending
criteria,  shall be determined by the  Documentation  Agent,  the Agent and each
Bank, as the case may be, in their sole discretion, and such determination shall
be conclusive and binding).

     "Borrowing Base Deficiency" is defined in Section 4.1(c).

     "Business  Day" shall mean (i) with  respect to any  borrowing,  payment or
rate  selection of Eurodollar  Loans, a day (other than a Saturday or Sunday) on
which  banks  generally  are open in  Chicago  and New York for the  conduct  of


CREDIT AGREEMENT                                                        Page 2



substantially all of their commercial  lending  activities and on which dealings
in United States dollars are carried on in the London  interbank market and (ii)
for all other  purposes,  a day (other than a Saturday or Sunday) on which banks
generally  are open in Chicago  for the  conduct of  substantially  all of their
commercial lending activities.

     "Change in Control"  shall mean the  acquisition  by any Person,  or two or
more Persons acting in concert,  of beneficial  ownership (within the meaning of
Rule  13d-3 of the  Securities  and  Exchange  Commission  under the  Securities
Exchange Act of 1934) of more than 50% of the outstanding shares of voting stock
of CRI.

     "Code" shall mean the Internal  Revenue Code of 1986,  as amended from time
to time, and the regulations thereunder.

     "Collateral"  shall have the  meaning  ascribed  thereto in Section  5.1(a)
hereof.

     "Commitments" shall mean, with respect to each Bank, the commitment of each
such Bank to make  Loans  and  assume a risk  participation  in Letter of Credit
Advances  pursuant to  Sections  2.1(a) and (b),  in amounts  not  exceeding  in
aggregate  principal  amount  outstanding at any time the respective  Commitment
amount  for  each  Bank set  forth  next to the  name of each  such  Bank on the
signature pages hereof or established  pursuant to Section 10.6, as the case may
be, as such amount may be reduced from time to time.

     "Consent and  Amendment of Security  Documents"  shall mean the consent and
amendment  of security  documents  entered into by the  Borrowers  and the Agent
pursuant to this Agreement in substantially the form of Exhibit A, as amended or
modified from time to time.

     "Consolidated"  or  "consolidated"  shall mean, when used with reference to
any financial term in this  Agreement,  the aggregate for two or more Persons of
the  amount  signified  by  such  term  for all  such  Persons  determined  on a
consolidated basis and in accordance with GAAP.

     "Consolidated  Interest Expense" shall mean, for any period, total interest
and  related  expense  (including,  without  limitation,  that  portion  of  any
capitalized lease obligation attributable to interest expense in conformity with
GAAP,  amortization  of debt discount,  all capitalized  interest,  the interest
portion of any deferred  payment  obligations,  all  commissions,  discounts and
other fees and  charges  owed with  respect  to  letters  of credit and  bankers
acceptance  financing,  the net costs and net payments  under any interest  rate
hedging,  cap or similar agreement or arrangement,  prepayment  charges,  agency
fees,  administrative  fees,  commitment fees and capitalized  transaction costs
allocated  to interest  expense)  paid,  payable or accrued  during such period,
without duplication for any period, with respect to all outstanding Indebtedness
of CRI and its Subsidiaries, all as determined for CRI and its Subsidiaries on a
consolidated basis for such period in accordance with GAAP.

     "Consolidated Net Income" shall mean, for any period, the net income of CRI
and its Subsidiaries for such period, determined in accordance with GAAP.

         "Contingent  Liabilities" of any Person shall mean, as of any date, all
obligations  of such Person or of others for which such  Person is  contingently
liable, as obligor, guarantor, surety or in any other capacity, or in respect of
which  obligations such Person assures a creditor against loss or agrees to take
any action to prevent  any such loss  (other  than  endorsements  of  negotiable
instruments   for   collection   in  the   ordinary   course  of  business   and
indemnifications  typical and customary in the ordinary  course of such Person's
oil  and  gas  business  in  connection  with  operating  agreements  and  other
agreements  executed  in the  ordinary  course  of  such  Person's  oil  and gas
business),  including without  limitation all reimbursement  obligations of such


CREDIT AGREEMENT                                                        Page 3





Person in respect of any letters of credit,  surety bonds or similar obligations
and all  obligations of such Person to advance funds to, or to purchase  assets,
property or services  from,  any other Person in order to maintain the financial
condition of such other Person.

     "Continuing  Directors"  of any  Person  shall mean the  directors  of such
Person on the  Effective  Date and each other  director  of such  Person if such
other  director's  nomination  for  election to the Board of  Directors  of such
Person is  recommended  by a majority of the then  Continuing  Directors of such
Board of Directors.

     "Current  Assets"  and  "Current  Liabilities"  shall  mean all  assets  or
liabilities of CRI and its Subsidiaries,  on a consolidated basis  respectively,
which  should be  classified  as  current  assets  and  current  liabilities  in
accordance with GAAP;  provided that the calculation of Current Assets shall not
include  receivables  of the  Borrowers  owing by any Affiliate in excess of 120
days or subject to any dispute or offset or otherwise unacceptable,  advances by
the Borrowers to any Affiliate or any asset classified as a Current Asset solely
because it is held for sale,  and  Current  Liabilities  shall not  include  the
current  maturities of any Indebtedness of any Borrower for borrowed money which
by its  terms  has a final  maturity  more  than one  year  from the date of any
calculation of Current Liabilities.

     "Default"  shall mean any Event of Default or any event or condition  which
might become an Event of Default with notice or lapse of time or both.

     "Dollars"  and "$" shall  mean the  lawful  money of the  United  States of
America.

     "EBITDA" shall mean, for any period,  the  Consolidated Net Income for such
period taken as a single  accounting  period,  plus,  to the extent  deducted in
determining such  Consolidated Net Income,  all  depreciation,  amortization and
depletion expense, and other non cash charges, Consolidated Interest Expense and
income taxes,  provided that in determining  Consolidated  Net Income as used in
this definition the following shall be excluded,  without  duplication:  (a) the
income of any Person  accrued  prior to the date such  Person is merged  into or
consolidated with a Borrower or such Person's assets are acquired by a Borrower,
(b) the  proceeds of any  insurance  policy,  (c) gains or losses from the sale,
exchange, transfer or other disposition of property or assets of any Borrower or
any of their  Subsidiaries  and related tax effects in accordance  with GAAP and
(d) any  extraordinary  or  non-recurring  gains of any Borrower or any of their
Subsidiaries, and related tax effects in accordance with GAAP.

     "Effective  Date"  shall mean the  effective  date  specified  in the final
paragraph of this Agreement.

     "Environmental Laws" at any date shall mean all provisions of law, statute,
ordinances, rules, regulations,  judgments, writs, injunctions, decrees, orders,
awards and  standards  promulgated  by the  government  of the United  States of
America or any foreign  government or by any state,  province,  municipality  or
other  political  subdivision  thereof  or  therein  or by  any  court,  agency,
instrumentality,  regulatory  authority or  commission  of any of the  foregoing
concerning the  protection  of, or regulating the discharge of substances  into,
the environment.

     "ERISA" shall mean the Employee  Retirement Income Security Act of 1974, as
amended from time to time,  together with any successor  statute thereto and the
regulations thereunder.

     "ERISA  Affiliate"  shall  mean  any  trade  or  business  (whether  or not
incorporated) which (i) together with the Borrowers or any Subsidiary,  would be
treated as a single employer under Section 414(b) or (c) of the Code or (ii) for
purposes of liability  under Section  412(C)(11)  of the Code,  the lien created
under  Section  412(n)  of the Code or for a tax  imposed  for  failure  to meet

CREDIT AGREEMENT                                                      Page 4





minimum  funding  standards under Section 4971 of the Code, a member of the same
affiliated  service group (within the meaning of Section  401(m) of the Code) as
the  Borrowers or any  Subsidiary,  or any other trade or business  described in
clause (i) above.

     "Eurodollar  Base Rate" shall mean,  with respect to a Eurodollar  Loan for
the relevant  Eurodollar Interest Period, the rate determined by the Agent to be
the rate at which  First  Chicago  offers  to place  deposits  in  Dollars  with
first-class  banks in the  London  interbank  market  at  approximately  11 a.m.
(London  time) two  Business  Days  prior to the  first  day of such  Eurodollar
Interest  Period,  in  the  approximate   amount  of  First  Chicago's  relevant
Eurodollar  Loan and having a maturity  approximately  equal to such  Eurodollar
Interest Period.

     "Eurodollar  Interest Period" or "Interest Period" shall mean, with respect
to a Eurodollar Loan, a period of one, two, three or six months  commencing on a
Business  Day  selected  by the  Borrowers  pursuant  to  this  Agreement.  Such
Eurodollar Interest Period shall end on the day which corresponds numerically to
such date one, two, three or six months thereafter,  provided,  however, that if
there is no such numerically  corresponding day in such next,  second,  third or
sixth succeeding  month,  such Eurodollar  Interest Period shall end on the last
Business  Day of such  next,  second,  third or  sixth  succeeding  month.  If a
Eurodollar  Interest Period would otherwise end on a day which is not a Business
Day, such Eurodollar  Interest Period shall end on the next succeeding  Business
Day, provided, however, that if said next succeeding Business Day falls in a new
calendar  month,  such  Eurodollar  Interest Period shall end on the immediately
preceding Business Day.

     "Eurodollar  Loan" shall mean a Loan which bears  interest at a  Eurodollar
Rate.

     "Eurodollar  Rate" shall mean,  with respect to a  Eurodollar  Loan for the
relevant  Eurodollar  Interest  Period,  the sum of (i) the  quotient of (a) the
Eurodollar Base Rate applicable to such Eurodollar  Interest Period,  divided by
(b) one minus the Reserve  Requirement  (expressed  as a decimal)  applicable to
such Eurodollar Interest Period, plus (ii) the Applicable Margin.

     "Event of Default" shall mean any of the events or conditions  described in
Section 8.1.

     "Federal  Funds Rate" shall mean,  for any day, an interest  rate per annum
equal  to  the  weighted  average  of  the  rates  on  overnight  Federal  funds
transactions  with  members of the Federal  Reserve  System  arranged by Federal
funds  brokers on such day, as published  for such day (or, if such day is not a
Business Day, for the immediately preceding Business Day) by the Federal Reserve
Bank of New York,  or, if such rate is not so  published  for any day which is a
Business Day, the average of the quotations at  approximately  10 a.m.  (Chicago
time) on such day on such transactions  received by the Agent from three Federal
funds  brokers  of  recognized  standing  selected  by the  Agent  in  its  sole
discretion.

     "First  Chicago" shall mean The First National Bank of Chicago,  a national
banking association, as a Bank under this Agreement.

     "Floating  Rate" shall mean the per annum rate equal to the sum of (a) with
respect to Loans and any other amounts owing hereunder,  the Applicable  Margin,
plus (b) the greater of (i) the per annum rate  announced by the Agent from time
to time as its  "corporate  base  rate",  and (ii) the sum of  one-half  percent
(1/2%) per annum plus the  Federal  Funds  Rate,  such  Floating  Rate to change
simultaneously  with any change in such  "corporate  base rate" or Federal Funds
Rate, as the case may be;

all as  conclusively  determined  in good  faith  by the  Agent,  such sum to be
rounded up, if necessary, to the nearest whole multiple of 1/16 of 1%.

         "Floating  Rate  Loan"  shall  mean any Loan  bearing  interest  at the
Floating Rate.

CREDIT AGREEMENT                                                      Page 5




     "GAAP" shall mean generally  accepted  accounting  principles  applied on a
basis consistent with that reflected in the financial  statements referred to in
Section 6.7 hereof.

     "Hydrocarbons" shall mean oil, gas casinghead,  gas, drip gasoline, natural
gas and condensates and all other liquid or gaseous hydrocarbons.

     "Indebtedness"  of  any  Person  shall  mean,  as  of  any  date,  (a)  all
obligations of such Person for borrowed  money,  (b) all  obligations  which are
secured by any lien or  encumbrance  existing on  property  owned by such Person
whether or not the  obligation  secured  thereby shall have been assumed by such
Person,  other than those  obligations which are incurred in the ordinary course
of business and are not  required to be shown as a liability on a balance  sheet
in accordance with GAAP, (c) all obligations as lessee under any lease which, in
accordance  with GAAP, is or should be  capitalized  on the books of the lessee,
(d) the deferred purchase price for goods, property or services acquired by such
Person,  and all obligations of such Person to purchase such goods,  property or
services  where  payment  therefor  is  required  regardless  of  whether or not
delivery of such goods or property or the  performance  of such services is ever
made or tendered,  other than unsecured trade payables  incurred in the ordinary
course of business,  (e) all  obligations of such Person to advance funds to, or
to purchase property or services from, any other Person in order to maintain the
financial  condition  of such  Person,  (f) all  obligations  of such  Person in
respect  of any  interest  rate or  currency  swap,  rate cap or  other  similar
transaction  (valued in an amount equal to the highest  termination  payment, if
any, that would be payable by such Person upon termination for any reason on the
date of  termination),  and (g) all  obligations of such Person or of others for
which such Person is contingently  liable, as guarantor,  surety or in any other
similar  capacity,  or in respect of which  obligations  such  Person  assures a
creditor  against  loss or agrees to take any  action to  prevent  any such loss
(other  than  endorsements  of  negotiable  instruments  for  collection  in the
ordinary course of business),  including  without  limitation all  reimbursement
obligations of such Person in respect of any letters of credit,  surety bonds or
similar  obligas of such  Person to  advance  funds to, or to  purchase  assets,
property or services  from, any other Person in order to maintain the condition,
financial or otherwise, of such other Person.

     "Interest  Payment  Date"  shall mean (a) with  respect to each  Eurodollar
Loan,  the last day of each  Eurodollar  Interest  Period  with  respect to such
Eurodollar  Loan and, in the case of any Eurodollar  Interest  Period  exceeding
three months, those days that occurred during such Eurodollar Interest Period at
intervals  of three  months  after  the first  day of such  Eurodollar  Interest
Period, (b) in all other cases, the last Business Day of each month,  commencing
with the first such day after the Effective Date, and (c) the  Termination  Date
with respect to Loans.

     "Lending Installation" shall mean, with respect to a Bank or the Agent, any
office, branch, subsidiary or affiliate of such Bank or the Agent.

     "Letter of Credit"  shall mean a standby  letter of credit  having a stated
expiry date not later than  twelve  months  after the date of  issuance  and not
later than the fifth  Business Day before the  Termination  Date,  issued by the
Agent  on  behalf  of the  Banks  for  the  account  of any  Borrower  under  an
application and related documentation  acceptable to the Agent requiring,  among
other things,  immediate  reimbursement by the Borrowers to the Agent in respect
of all drafts or other demand for payment  honored  thereunder  and all expenses
paid or incurred by the Agent relative thereto.  Standby letters of credit which
are  automatically  renewed annually unless revoked shall be considered  standby
letters of credit which have a stated  expiry date not later than twelve  months
after their date of issuance for purposes of this definition.

     "Letter of Credit  Advance"  shall mean any  issuance of a Letter of Credit
under  Section 3.1 made  pursuant  to Section 2.1 in which each Bank  acquires a
risk participation equal to its Pro Rata Share.


CREDIT AGREEMENT                                                      Page 6




     "Letter of Credit  Documents"  shall have the meaning  ascribed  thereto in
Section 3.3(b)(i).

     "Lien" shall mean any pledge, assignment, hypothecation, mortgage, security
interest,  deposit  arrangement,  option,  conditional  sale or title  retaining
contract,  sale and leaseback transaction,  financing statement filing, lessor's
or lessee's  interest under any lease,  subordination  of any claim or right, or
any other type of lien, charge,  encumbrance,  preferential arrangement or other
claim or right.

     "Loan"  means any loan under  Section 3.1  evidenced  by the Notes and made
pursuant to Section 2.1(a).

     "Loan  Documents"  shall  mean this  Agreement,  the  Notes,  the  Security
Documents, the environmental certificate and any other agreement,  instrument or
document  executed at any time  pursuant to, in  connection  with,  or otherwise
relating to this Agreement.

     "Material Adverse Effect" shall mean a material adverse effect on or change
in (a) the business,  property  (including  without  limitation the Collateral),
operations  or  condition,  financial  or  otherwise,  of  the  Borrowers  on  a
consolidated  basis,  (b) the ability of any Borrower to perform its obligations
under any Loan Document or (c) the validity or  enforceability or the rights and
remedies of the Agent or any Bank under any Loan Document.

     "Mortgages" shall have the meaning ascribed thereto in Section 5.1.

     "Multiemployer  Plan"  shall  mean any  "multiemployer  plan" as defined in
Section 4001(a)(3) of ERISA or Section 414(f) of the Code.

     "Note"  shall mean any  promissory  note of the  Borrowers  evidencing  the
Loans,  in  substantially  the form  annexed  hereto as Exhibit B, as amended or
modified from time to time and together with any promissory note or notes issued
in exchange or replacement therefor.

     "Oil and Gas  Interests"  shall mean all leasehold  interests,  mineral fee
interest,  overriding royalty and royalty interests, net revenue and net working
interest and all other rights and interests relating to Hydrocarbons,  including
without limitation any reserves thereof.

     "Overdue  Rate" shall mean (a) in respect of  principal  of  Floating  Rate
Loans, a rate per annum that is equal to the sum of three percent (3%) per annum
plus the Floating Rate, (b) in respect of principal of Eurodollar  Loans, a rate
per annum that is equal to the sum of three  percent (3%) per annum plus the per
annum  rate in  effect  thereon  until  the end of the then  current  Eurodollar
Interest Period for such Loan and, thereafter, a rate per annum that is equal to
the sum of three  percent  (3%) per annum  plus the  Floating  Rate,  and (c) in
respect  of  other  amounts  payable  by the  Borrowers  hereunder  (other  than
interest),  a per annum rate that is equal to the sum of three  percent (3%) per
annum plus the Floating Rate.

     "PBGC" shall mean the Pension Benefit  Guaranty  Corporation and any entity
succeeding to any or all of its functions under ERISA.

     "Permitted Liens" shall mean the Liens permitted by Section 7.2(e) hereof.

     "Person" shall include an  individual,  a corporation,  an  association,  a
partnership,  a trust  or  estate,  a joint  stock  company,  an  unincorporated
organization,  a joint  venture,  a government  (foreign or  domestic),  and any
agency or political subdivision thereof, or any other entity.


CREDIT AGREEMENT                                                      Page 7




     "Plan"  shall mean,  with respect to any Person,  any  employee  benefit or
other plan (other than a Multiemployer  Plan)  maintained by such Person for its
employees  and covered by Title IV of ERISA or to which  Section 412 of the Code
applies.

     "Pro Rata  Share"  shall mean,  as to  obligations  of the Banks,  the loan
percentage  set  forth  opposite  its  name on the  signature  pages  hereof  or
otherwise  established  pursuant to Section 10.6, and as to obligations owing to
the Banks,  shall mean: (a) in the case of payments of principal and interest on
the Loans,  an amount  with  respect  to each Bank equal to the  product of such
amount received multiplied by the ratio which the outstanding  principal balance
of its Note bears to the outstanding  principal balance of all Notes, and (b) in
the case of all other amounts payable  hereunder  (other than as otherwise noted
with  respect to fees) and other  amounts,  an amount with  respect to each Bank
equal to the product of such amount  received  multiplied by the ratio which the
Commitment of such Bank bears to the Commitments of all Banks.

     "Proved Developed  Reserves" shall mean all Oil and Gas Interests which, to
the satisfaction of the Agent, are estimated,  with reasonable certainty, and as
demonstrated by geological and  engineering  data acceptable to the Agent, to be
economically  recoverable  from  existing  wells  requiring  no more than  minor
workover operations from existing  completion  intervals open for production and
which are producing, and have proven reserves of, Hydrocarbons.

     "Purchase  Documents"  shall mean all  purchase and sale  agreements  dated
October  31,  1997 and all other  agreements  and  documents  between  COGL,  as
purchaser,  and the sellers  party  thereto for the purchase by COGL of the Bois
D'Arc and other  properties  described  therein (to be  assigned  to  Offshore),
together with all other agreements and documents  delivered  pursuant to Section
3.2(a)(xi).

     "Purchased  Bois D'Arc Assets" shall mean all oil and gas interests and all
other assets being purchased pursuant to the Purchase Documents.

     "Reportable  Event" shall mean a  reportable  event as described in Section
4043(b) of ERISA  including  those events as to which the thirty (30) day notice
period is waived  under  Part 2615 of the  regulations  promulgated  by the PBGC
under ERISA.

     "Required  Banks"  shall mean Banks  holding  not less than  66-2/3% of the
aggregate  principal  amount of the Advances then outstanding (or 66-2/3% of the
Commitments if no Advances are then outstanding).

     "Reserve  Requirement" means, with respect to a Eurodollar Interest Period,
the maximum aggregate reserve  requirement  (including all basic,  supplemental,
marginal and other reserves) which is imposed under Regulation D on Eurocurrency
liabilities.

     "Security  Agreements"  shall have the meaning  ascribed thereto in Section
5.1.

     "Security  Documents"  shall have the meaning  ascribed  thereto in Section
5.1.

     "Subsidiary"  of any  Person  shall  mean any  other  Person  (whether  now
existing or hereafter  organized  or  acquired)  in which (other than  directors
qualifying shares required by law)at least a majority of the securities or other
ownership  interests  of each class  having  ordinary  voting power or analogous
right (other than securities or other ownership  interests which have such power
or right only by reason of the  happening of a  contingency),  at the time as of
which any determination is being made, are owned, beneficially and of record, by
such Person or by one or more of the other Subsidiaries of such Person or by any
combination thereof. Unless otherwise specified, reference to "Subsidiary" shall
mean a Subsidiary of CRI.


CREDIT AGREEMENT                                                      Page 8




     "Swap Agreement" shall mean any interest rate or oil and gas commodity swap
agreement,  interest  cap or collar  agreement or other  financial  agreement or
arrangement  designed to protect the Borrowers against  fluctuations in interest
rates or oil and gas prices.

     "Tangible  Net Worth" of any Person  shall  mean,  as of any date,  (a) the
amount of any capital stock or similar ownership liability plus (or minus in the
case of a deficit) the capital surplus and retained  earnings of such Person and
the amount of any foreign  currency  translation  adjustment  account shown as a
capital account of such Person,  less (b) the net book value of all items of the
following  character  which  are  included  in the  assets of such  Person:  (i)
goodwill,  including without  limitation,  the excess of cost over book value of
any asset,  (ii) organization or experimental  expenses,  (iii) unamortized debt
discount and expense, (iv) stock discount and expense, (v) patents,  trademarks,
trade names and  copyrights,  (vi)  treasury  stock,  (vii)  deferred  taxes and
deferred charges,  (viii) franchises,  licenses and permits,  and (ix) all other
assets  which are deemed  intangible  assets  under  GAAP;  provided,  that such
calculation  of  Tangible  Net Worth  under this  definition  shall not  include
receivables  of such Person which are owing by any Affiliate or advances by such
Person to any Affiliate.

     "Termination  Date"  shall  mean the  earlier  to  occur  of (a) the  fifth
anniversary  of the  Effective  Date and (b) the date on which  the  Commitments
shall be terminated pursuant to Section 2.1(c) or 8.2.

     "Total  Liabilities"  of  any  Person  shall  mean,  as of  any  date,  all
obligations  which,  in  accordance  with GAAP,  are or should be  classified as
liabilities on a balance sheet of such Person.

     "Type" shall mean,  with  respect to any Advance,  its nature as a Floating
Rate Loan, Eurodollar Loan or Letter of Credit Advance.

     1.2 Other  Definitions;  Rules of Construction.  As used herein,  the terms
"Agent",  "Banks", "CRI", "COG", "COGL",  "Borrowers" and "this Agreement" shall
have the respective  meanings ascribed thereto in the introductory  paragraph of
this  Agreement.  Such terms,  together  with the other terms defined in Section
1.1,  shall  include both the singular and the plural forms thereof and shall be
construed  accordingly.  All computations  required  hereunder and all financial
terms used herein shall be made or construed in accordance with GAAP unless such
principles are inconsistent with the express requirements of this Agreement.

     SECTION 2. The Commitments.

     2.1 Advances. (a) Each Bank agrees, for itself only, to lend and to relend,
and to participate in Letter of Credit Advances pursuant to Section 3.1, in each
case subject to the terms and conditions of this Agreement,  to the Borrowers at
any time and from time to time from the  Effective  Date  until the  Termination
Date amounts equal to such Bank's Pro Rata Share of such  aggregate  Advances as
any Borrower  may from time to time  request,  provided  that no Advances may be
made if the aggregate  outstanding amount of all Advances to all Borrowers would
exceed the lesser of the Commitments or the Borrowing Base;  provided,  however,
that the aggregate principal amount of Letters of Credit outstanding at any time
shall not exceed $5,000,000.  Each Loan made hereunder shall be evidenced by the
Notes, which shall mature and bear interest as set forth in Section 4 hereof and
in such Notes.  On the Effective  Date, the Borrowers shall issue and deliver to
each Bank a Note in the  principal  amount  of such  Banks'  Commitment  for the
period  beginning on the Effective Date. Each Loan which is a Floating Rate Loan
shall be in a minimum  amount of $500,000 and in integral  multiples of $100,000
and each  Loan  which is a  Eurodollar  Loan  shall be in a  minimum  amount  of
$3,000,000 and in integral multiples of $1,000,000.  No more than ten Eurodollar
Interest  Periods  shall be permitted  to exist at any one time.  Subject to the
terms and  conditions  of this  Agreement,  the  Borrowers  may  borrow,  prepay
pursuant to Section 4.1(b) and reborrow under this Section 2.1(a).


CREDIT AGREEMENT                                                      Page 9




          (b) For  purposes of this  Agreement,  a Letter of Credit  Advance (i)
shall be deemed  outstanding in an amount equal to the sum of the maximum amount
available to be drawn under the related Letter of Credit on or after the date of
determination and on or before the stated expiry date thereof plus the amount of
any draws under such Letter of Credit that have not been  reimbursed as provided
in Section 3.3 and (ii) shall be deemed  outstanding  at all times on and before
such stated  expiry date or such earlier date on which all amounts  available to
be drawn under such Letter of Credit have been fully drawn, and thereafter until
all related reimbursement obligations have been paid pursuant to Section 3.3. As
provided in Section  3.3,  upon each payment made by the Agent in respect of any
draft or other demand for payment under any Letter of Credit,  the amount of any
Letter of Credit Advance outstanding  immediately prior to such payment shall be
automatically  reduced by the amount of each Loan deemed  advanced in respect of
the related reimbursement obligation of the Borrowers.

          (c) The  Borrowers  shall  have the right to  terminate  or reduce the
Commitments  at any time and from time to time,  provided that (i) the Borrowers
shall give notice of such  termination or reduction to the Agent  specifying the
amount and effective date thereof,(ii) each partial reduction of the Commitments
shall  be in a  minimum  amount  of  $1,000,000  and in  integral  multiples  of
$1,000,000 and shall reduce the  Commitments of all of the Banks  proportionally
in accordance with the respective Commitment amounts of each such Bank, (iii) no
such  termination  or reduction,  either in whole or part and including  without
limitation  any  termination,  shall be permitted with respect to any portion of
the Commitments as to which a request for Advances is then pending, and (iv) the
Commitments  may not be terminated if any Advances are then  outstanding and may
not be reduced below the  principal  amount of Advances  then  outstanding.  The
Commitments  or  any  portion  thereof  so  terminated  or  reduced  may  not be
reinstated.  Any Borrower may request  Advances without the consent of any other
Borrower,  and each Borrower consents to and approves any Advances  requested by
any other Borrower.  The Advances  hereunder  replace the revolving credit loans
and letters of credit  outstanding  pursuant to Section  2.1(a) of the  Existing
Credit Agreement and provide additional credit as described above.

     SECTION 3. The Advances.

     3.1 Disbursement of Advances.  (a) Borrowers shall give notice to the Agent
of each requested Advance in substantially  the form of Exhibit C hereto,  which
notice  given shall be received by the Agent not later than 10:00 a.m.  (Chicago
time), (i) three Business Days prior to the date such Advance is requested to be
made if such Advance is to be made as a Eurodollar  Loan,  (ii) one Business Day
prior to the date such  Advance is requested to be made if such Advance is to be
made as a Floating  Rate Loan and (iii)  three  Business  Days prior to the date
such  Advance is to be made if such  Advance is to be made as a Letter of Credit
Advance.  Each  such  notice  given  shall be  irrevocable  and  binding  on the
Borrowers,  any such notice must  specify  the  Advance  Date,  which shall be a
Business  Day,  the  aggregate  amount  of such  Advance,  the  Type of  Advance
selected,  in the case of any Eurodollar  Loan, the Eurodollar  Interest  Period
applicable  thereto,  and in the case of any Letter of Credit Advance such other
information  and documents with respect thereto as may be required by the Agent.
The Agent shall  provide  notice of such  requested  Advance to each Bank on the
same  Business Day such notice is received  from the  Borrowers.  Subject to the
terms and conditions of this Agreement,  the Agent shall, on the date any Letter
of Credit Advance is requested to be made, issue the related Letter of Credit on
behalf of the Banks for the account of the designated Borrower.  Notwithstanding
anything  herein to the  contrary,  the Agent may decline to issue any requested
Letter of Credit on the basis that the  beneficiary,  the purpose of issuance or
the terms or the  conditions  of drawing  are illegal or contrary to a policy of
the Agent.

          (b) Floating  Rate Loans shall  continue as Floating Rate Loans unless
and until such Floating Rate Loans are converted  into  Eurodollar  Loans.  Each
Eurodollar  Loan of any Type shall  continue as a  Eurodollar  Loan of such Type
until the end of the then applicable


CREDIT AGREEMENT                                                      Page 10






Interest  Period  therefor,   at  which  time  such  Eurodollar  Loan  shall  be
automatically converted into a Floating Rate Loan unless the Borrower shall have
given the Agent a Conversion/Continuation  Notice requesting that, at the end of
such Interest Period,  such Eurodollar Loan either continue as a Eurodollar Loan
of such Type for the same or another Interest Period or be converted into a Loan
of another  Type.  Subject to the terms of Section  2.1,  the Borrower may elect
from  time to time to  convert  all or any part of a Loan of any  Type  into any
other Type or Types of a Loan;  provided that any  conversion of any  Eurodollar
Loan  shall be made  on,  and only  on,  the  last  day of the  Interest  Period
applicable  thereto.  The Borrowers shall give the Agent  irrevocable  notice (a
"Conversion/Continuation  Notice") of each  conversion of a Loan or continuation
of a  Eurodollar  Loan not later  than 10:00  a.m.  (Chicago  time) at least one
Business  Day, in the case of a conversion  into a Floating  Rate Loan, or three
Business Days, in the case of a conversion  into or continuation of a Eurodollar
Loan, prior to the date of the requested conversion or continuation, specifying:

               (i) the  requested  date,  which shall be a Business Day, of such
conversion or continuation,

               (ii) the  aggregate  amount  and Type of the Loan  which is to be
converted or continued, and

               (iii) the amount and  Type(s) of Loan(s)  into which such Loan is
to be  converted  or  continued  and,  in  the  case  of a  conversion  into  or
continuation  of  a  Eurodollar  Loan,  the  duration  of  the  Interest  Period
applicable thereto.

          (c)  Subject  to the  terms  and  conditions  of this  Agreement,  the
proceeds of such  requested  Loan shall be made  available  to the  Borrowers by
depositing the proceeds thereof, in immediately  available funds, on the Advance
Date for such Loan in an account  maintained  and designated by the Borrowers at
the principal  office of the Agent.  Each Bank, on the Advance Date of each such
Loan  shall  make  its Pro Rata  Share of such  Loan  available  in  immediately
available  funds at the principal  office of the Agent for  disbursement  to the
Borrowers.  Unless the Agent shall have  received  notice from any Bank prior to
the date of any  requested  Loan under this  Section 3.1 that such Bank will not
make  available  to the Agent such Bank's Pro Rata  Share,  the Agent may assume
that such Bank has made such share available to the Agent on the Advance Date of
such Loan in accordance with this Section 3.1(b). If and to the extent such Bank
shall not have so made such Pro Rata Share available to the Agent, the Agent may
(but shall not be obligated  to) make such amount  available to the Borrowers on
the relevant Advance Date, and such Bank agrees to pay to the Agent forthwith on
demand such amount  together with interest  thereon,  for each day from the date
such amount is made  available to the Borrowers by the Agent until the date such
amount is paid to the Agent,  at the Federal  Funds Rate. If such Bank shall pay
to the Agent such  amount,  such amount so paid shall  constitute a Loan by such
Bank as a part of such borrowing for purposes of this Agreement.  The failure of
any Bank to make its Pro Rata  Share of any such  Loan  available  to the  Agent
shall not relieve any other Bank of its  obligations  to make  available its Pro
Rata Share of such Loan on the Advance  Date of such Loan,  but no Bank shall be
responsible  for failure of any other Bank to make such Pro Rata Share available
to the Agent on the Advance Date of any such Loan.

          (d) Each Bank may book its Loans at any Lending Installation  selected
by such Bank and may  change its  Lending  Installation  from time to time.  All
terms of this  Agreement  shall apply to any such Lending  Installation  and the
Notes  shall  be  deemed  held by each  Bank  for the  benefit  of such  Lending
Installation.  Each Bank may,  by written  or telex  notice to the Agent and the
Borrowers,  designate a Lending Installation through which Loans will be made by
it and for whose account Loan payments are to be made.

          (e)  Nothing  in this  Agreement  shall be  construed  to  require  or
authorize any Bank to issue any Letter of Credit,  it being  recognized that the


CREDIT AGREEMENT                                                      Page 11





Agent has the sole obligation under this Agreement to issue Letters of Credit on
behalf of the Banks, and the Commitment of each Lender with respect to Letter of
Credit Advances is expressly  conditioned  upon the Agent's  performance of such
obligations.  Upon such issuance by the Agent, each Bank shall automatically and
unconditionally  acquire a risk participation  interest to the extent of its Pro
Rata Share in such Letter of Credit Advance based on its respective  Commitment.
If the Agent shall honor a draft or other  demand for payment  presented or made
under any Letter of Credit,  the Agent shall provide notice thereof to each Bank
on the date such draft or demand is  honored  unless  the  Borrowers  shall have
satisfied  their  reimbursement  obligation  under Section 3.3 by payment to the
Agent on such date.  Each Bank,  not later than the Business Day after the Agent
shall have given the notice specified in the previous  sentence,  shall make its
Pro  Rata  Share  of the  amount  paid by the  Agent  available  in  immediately
available  funds at the  principal  office of the Agent for the  account  of the
Agent.  If and to the extent such Bank shall not have made any required Pro Rata
Share  amount  available  to the  Agent or made its  portion  of Loan  available
pursuant to Section  3.3(a)(i),  such Bank and the Borrowers  severally agree to
pay to the Agent forthwith on demand such amount together with interest thereon,
for each day from the date such  amount was paid by the Agent  until such amount
is so made  available to the Agent at (i) the interest  rate then  applicable to
Floating  Rate Loans for such day in the case of the Borrowers and (ii) the rate
per  annum  equal  to the  Federal  Funds  Rate for the  first  five  days,  and
thereafter at the interest rate  applicable to Floating Rate Loans,  in the case
of any Bank.  If such Bank  shall  pay such  amount to the Agent tso paid  shall
constitute a Loan by such Bank as part of the Loans  disbursed in respect of the
reimbursement obligation of the Borrowers under Section 3.3 for purposes of this
Agreement. The failure of any Bank to make its Pro Rata Share of any such amount
paid by the Agent available to the Agent shall not relieve any other Bank of its
obligation  to make  available  its Pro Rata Share of such  amount,  but no Bank
shall be  responsible  for failure of any other Bank to make such Pro Rata Share
available to the Agent.

     3.2 Conditions of Advances.  The Banks and the Agent shall not be obligated
to make any Advance hereunder at any time unless:

          (a) Prior to or simultaneously with the first Advance hereunder, there
shall have been  delivered  to each Bank the  following  documents,  in form and
substance  satisfactory  to the Agent and the  following  additional  conditions
shall have been satisfied:

               (i) The  favorable  opinion of such counsel for the  Borrowers as
shall be  approved  by the  Required  Banks,  with  respect  to the  matters  as
requested by the Banks,  all in form and substance  satisfactory to the Required
Banks;

               (ii)  certified  copies  of  such  corporate  documents  of  each
Borrower,  including each Borrower's  articles of  incorporation,  by-laws and a
good standing  certificate,  and such documents  evidencing  necessary corporate
action with  respect to this  Agreement,  the Loans,  the Notes and the Security
Documents, and certifying to the incumbency of, and attesting to the genuineness
of the  signatures  of,  those  officers  authorized  to act on  behalf  of each
Borrower, as the Banks shall request;

               (iii) the Security  Documents  required as of the Effective  Date
under  Section  5.1 duly  executed  on behalf of the  Borrowers,  together  with
evidence of the  recordation,  filing and other action in such  jurisdictions as
the Banks  may deem  necessary  or  appropriate  with  respect  to the  Security
Documents  and evidence of the  first-priority  of the Banks' liens and security
interests  under  the  Security  Documents,  subject  only to  Permitted  Liens,
including without  limitation such additional  mortgages,  security  agreements,
pledge agreements, other documents and opinions of counsel required by the Banks
and original stock  certificates  and assignments  separate from  certificate of
each Person whose stock is required to be pledged;


CREDIT AGREEMENT                                                      Page 12





               (iv) the Notes duly executed on behalf of the  Borrowers,  and it
is  acknowledged  and agreed  that the Notes:  (A) are  issued in  exchange  and
replacement  for the  promissory  notes issued  pursuant to the Existing  Credit
Agreement,  (B)  shall  not be  deemed  a  novation  or to have  satisfied  such
promissory  notes  and (C)  evidence  the same  indebtedness  evidenced  by such
promissory notes plus additional indebtedness;

               (v) the Consent and Amendment of Security Documents duly executed
by the Borrowers;

               (vi) Payment of such fees agreed to among the  Borrowers  and the
Agent;

               (vii) the  execution  by the  Borrowers  of the Agent's  standard
environmental certificate;

               (viii) the Banks shall have  determined that the Loans to be made
are equal to or less than the Borrowing Base;

               (ix)  copies  of  all   agreements   relating  to  any   material
Indebtedness  for borrowed money,  any outstanding  preferred  stock,  any joint
ventures or partnerships or any other material documents requested by the Banks;

               (x)  the  originals  of  all  promissory  notes  payable  to  any
Borrower,  other  than  promissory  notes  in  an  aggregate  amount  less  than
$1,000,000; and

               (xi)   such   other   agreements,   documents,   conditions   and
certificates as reasonably requested by the Banks, including without limitation,
releases and terminations of all other Liens which are not permitted  hereunder,
amendments  of existing  Security  Documents,  all Purchase  Documents and other
agreements and documents related to the Borrowers' acquisition of additional oil
and gas properties and other assets described therein, all in form and substance
satisfactory to the Banks.

          (b) The aggregate  outstanding  principal amount of all Advances after
giving  effect  to the  proposed  Advance,  does not  exceed  the  lesser of the
Commitments or the Borrowing Base.

          (c) On and as of the date of each such  Advance,  the  representations
and  warranties  contained  in Section 6 hereof shall be true and correct in all
material respects as if made on such date; provided,  however, that for purposes
of this Section 3.2(c) the representations  and warranties  contained in Section
6.7 hereof  shall be deemed made with respect to both the  financial  statements
referred to therein and the most recent financial  statements delivered pursuant
to Section 7.1(d)(ii) and (iii).

          (d) No  Default or event or  condition  which  could  cause a Material
Adverse   Effect  has  occurred  and  is  continuing  or  will  exist  upon  the
disbursement  of  such  Advance.  Acceptance  of the  proceeds  of  any  Advance
hereunder  by  the  Borrowers  shall  be  deemed  to be a  certification  by the
Borrowers  at such time with  respect to the matters set forth in  subparagraphs
(b), (c) and (d) of this Section 3.2.

     3.3 Letter of Credit Reimbursement Payments.  (a)(i) The Borrowers agree to
pay to the  Agent,  on the day on which the Agent  shall  honor a draft or other
demand for payment presented or made under any Letter of Credit, an amount equal
to the amount paid by the Agent in respect of such draft or other  demand  under


CREDIT AGREEMENT                                                      Page 13





such Letter of Credit and all  expenses  paid or incurred by the Agent  relative
thereto.  Unless the Borrowers shall have made such payment to the Agent on such
day,  upon each such  payment  by the Agent,  the Agent  shall be deemed to have
disbursed to the Borrowers, and the Borrowers shall be deemed to have elected to
satisfy the  reimbursement  obligation by borrowing,  a Loan bearing interest at
the Floating  Rate for the account of the Banks in an amount equal to the amount
so paid by the Agent in respect of such draft or other  demand under such Letter
of Credit.  Such Loan shall be  disbursed,  and each Bank shall  advance its Pro
Rata Share  thereof,  notwithstanding  any failure to satisfy any conditions for
disbursement of any Loan set forth in Article III or any other condition and, to
the  extent  of the  Loan so  disbursed,  the  reimbursement  obligation  of the
Borrowers under this Section 3.3 shall be deemed satisfied;  provided,  however,
that  such  disbursement  shall  not be  deemed  to be a waiver  of any Event of
Default or Default, if any.

               (ii) If for any reason (including  without limitation as a result
of the occurrence of an Event of Default pursuant to Section  6.1(h)),  Floating
Rate Loans may not be made by the Banks as described in Section 3.3(a)(i),  then
(A) the Borrowers agree that each reimbursement  amount not paid pursuant to the
first sentence of Section  3.3(a)(i)  shall bear interest,  payable on demand by
the Agent, at the interest rate then applicable to Floating Rate Loans,  and (B)
effective on the date each such  Floating  Rate Loan would  otherwise  have been
made, each Bank severally agrees that it shall  unconditionally and irrevocably,
without regard to the occurrence of any Default or Event of Default,  in lieu of
a deemed  disbursement  of Loans,  to the extent of such  Bank's Pro Rata Share,
purchase a participating  interest in each reimbursement  amount. Each Bank will
immediately  transfer  to the  Agent,  in same  day  funds,  the  amount  of its
participation.  Each Bank  shall  share in  accordance  with its Pro Rata  Share
(calculated  by reference to the  Commitments)  in any  interest  which  accrues
thereon and in all repayments  thereof. If and to the extent that any Bank shall
not have so made the  amount of such  participating  interest  available  to the
Agent, such Bank and the Borrowers agree to pay to the Agent forthwith on demand
such amount together with interest thereon, for each day from the date of demand
by the Agent until the date such amount is paid to the Agent, at (x) in the case
of the Borrowers,  the interest rate then  applicable to Floating Rate Loans and
(y) in the case of such Bank,  the  Federal  Funds Rate for the first five days,
and thereafter the interest rate applicable to Floating Rate Loans.

          (b) The reimbursement  obligations of the Borrowers under this Section
3.3 shall be absolute,  unconditional  and  irrevocable and shall remain in full
force and effect  until all  obligations  of the  Borrowers to the Agent and the
Banks hereunder shall have been satisfied, and such obligations of the Borrowers
shall not be  affected,  modified or impaired  upon the  happening of any event,
including without limitation,  any of the following,  whether or not with notice
to, or the consent of, the Borrowers:

               (i) Any lack of  validity  or  enforceability  of any  Letter  of
Credit  or  any  documentation  relating  to  any  Letter  of  Credit  or to any
transaction  related in any way to such Letter of Credit (the  "Letter of Credit
Documents");

               (ii) Any  amendment,  modification,  waiver  or  consent,  or any
substitution,  exchange  or release of or failure  to perfect  any  interest  in
collateral or security, with respect to any of the Letter of Credit Documents.

               (iii) The existence of any claim, setoff,  defense or other right
which  the  Borrowers  may  have at any  time  against  any  beneficiary  or any
transferee of any Letter of Credit (or any persons or entities for whom any such
beneficiary or any such transferee may be acting),  the Agent or any Bank or any
other person or entity,  whether in connection  with any of the Letter of Credit
Documents,  the  transactions  contemplated  herein or therein or any  unrelated
transactions;


CREDIT AGREEMENT                                                      Page 14





               (iv) Any draft or other statement or document presented under any
Letter of Credit proving to be forged,  fraudulent,  invalid or  insufficient in
any respect or any statement therein being untrue or inaccurate in any respect;

               (v) Payment by the Agent to the  beneficiary  under any Letter of
Credit against  presentation  of documents which do not comply with the terms of
the Letter of Credit,  including  failure of any documents to bear any reference
or adequate reference to such Letter of Credit;

               (vi)  Any  failure,  omission,  delay  or lack on the part of the
Agent or any Bank or any  party to any of the  Letter  of  Credit  Documents  to
enforce, assert or exercise any right, power or remedy conferred upon the Agent,
any Bank or any such party under this  Agreement  or any of the Letter of Credit
Documents,  or any other acts or omissions on the part of the Agent, any Bank or
any such party; or

               (vii) Any other event or circumstance  that would, in the absence
of this  clause,  result in the  release or  discharge  by  operation  of law or
otherwise the Borrowers from the  performance  or observance of any  obligation,
covenant or agreement  contained  in this Section 3.3. No setoff,  counterclaim,
reduction or diminution  of any  obligation or any defense of any kind or nature
which the Borrowers  have or may have against the  beneficiary  of any Letter of
Credit shall be available  hereunder to the  Borrowers  against the Agent or any
Bank.  Nothing in this  Section  3.3 shall limit the  liability,  if any, of the
Borrowers to the Banks pursuant to Section 10.5(b).

     3.4.  Withholding  Tax Exemption.  At least five Business Days prior to the
first date on which  interest or fees are payable  hereunder  for the account of
any Bank, each Bank that is not incorporated under the laws of the United States
of  America,  or a state  thereof,  agrees  that it will  deliver to each of the
Borrowers  and the Agent two duly  completed  copies of United  States  Internal
Revenue  Service Form 1001 or 4224,  certifying in either case that such Bank is
entitled  to  receive  payments  under  this  Agreement  and the  Notes  without
deduction or withholding  of any United States  federal income taxes.  Each Bank
which so delivers a Form 1001 or 4224 further  undertakes  to deliver to each of
the Borrowers and the Agent two  additional  copies of such form (or a successor
form) on or before the date that such form expires (currently,  three successive
calendar  years for Form 1001 and one  calendar  year for Form  4224) or becomes
obsolete  or after the  occurrence  of any event  requiring a change in the most
recent forms so delivered by it, and such  amendments  thereto or  extensions or
renewals  thereof as may be reasonably  requested by the Borrowers or the Agent,
in each case  certifying  that such Bank is entitled to receive  payments  under
this  Agreement and the Notes  without  deduction or  withholding  of any United
States federal income taxes,  unless an event (including  without limitation any
change in treaty, law or regulation) has occurred prior to the date on which any
such  delivery  would  otherwise  be  required  which  renders  all  such  forms
inapplicable  or  which  would  prevent  such  Bank  from  duly  completing  and
delivering  any such form with respect to it and such Bank advises the Borrowers
and the Agent that it is not capable of receiving payments without any deduction
or withholding of United States federal income tax.

     SECTION 4. Payment and Prepayment; Fees; Change in Circumstances.

     4.1 Principal Payments.

          (a) Unless  earlier  payment is  required  under this  Agreement,  the
Borrowers  shall pay the entire  outstanding  principal  amount of the Revolving
Credit Advances on the Termination Date.

          (b) The Borrowers may from time to time prepay all or a portion of the
Advances without premium or penalty,  provided,  however, that (i) the Borrowers


CREDIT AGREEMENT                                                      Page 15






shall have given not less than one Business  Day's prior written  notice thereof
to the Agent, (ii) other than mandatory payments,  each such prepayment,  in the
case of  prepayment of Floating  Rate Loans,  shall be in the minimum  amount of
$500,000 and in integral multiples of $100,000 and, in the case of prepayment of
Eurodollar  Loans,  shall be in the minimum amount of $1,000,000 and in integral
multiples  thereof,  (iii)  any  prepayment  of any  Eurodollar  Loan  shall  be
accompanied by any amount required pursuant to Section 4.10.

          (c) If it should be  determined by the Agent at any time and from time
to time that the principal  amount of the Advances exceed the lesser of the then
Borrowing Base or the Commitments (such condition defined herein as a "Borrowing
Base Deficiency"), the Borrowers shall promptly do one of the following:

               (i) In addition to all other  payments of principal  and interest
required to be paid on the Advances,  prepay upon demand and without  premium or
penalty the Advances in an amount by which, in the  determination  of the Agent,
such  aggregate  principal  amount  outstanding  exceeds  the lesser of the then
Borrowing Base or the  Commitments,  provided that such prepayment shall be made
first on the  Loans  and if the  Loans  are paid in full and such  excess  still
exists, the Borrowers shall provide cash collateral for any outstanding  Letters
of Credit to the extent of such remaining excess; or

               (ii) Grant a lien and  security  interest  to the Agent,  for the
benefit of the Banks, in form and substance  satisfactory to the Required Banks,
in additional  interests in Proved Developed Reserves of the Borrowers which, in
the  determination of the Required Banks, will increase the Borrowing Base by an
amount  such that the then  aggregate  principal  amount  of the Loans  does not
exceed the lesser of the then Borrowing Base or the Commitments; or

               (iii) Any combination of the foregoing acceptable to the Required
Banks.

          (d) In addition to all other  payments  required  hereunder,  upon any
sale or other  disposition of any assets when a Default exists,  or if such sale
or other  disposition  would cause a Default,  the  Borrowers  shall  prepay the
Advances by an amount equal to 100% of the net proceeds  (net only of reasonable
and  customary  costs  of  such  sale or  other  disposition)  of  such  sale or
disposition, which prepayment is due upon receipt of such net proceeds.

          (e) In addition to all other  payments  required  hereunder,  upon any
sale or other disposition of any assets when a Borrowing Base Deficiency exists,
or if such sale or other  disposition  would cause a Borrowing Base  Deficiency,
the  Borrower  shall  prepay the  Advances by the amount of the  Borrowing  Base
Deficiency from the net proceeds (net only of any reasonable and customary costs
of such sale or other disposition) of such sale or disposition, which prepayment
is due upon receipt of such net proceeds.

     All  determinations  made pursuant to this Section 4.1 shall be made by the
Agent or the  Required  Banks,  as the case may be,  and  shall be  conclusively
binding on the parties absent manifest error.

     4.2 Interest Payment.  (a) The Borrowers shall pay interest to the Banks on
the unpaid principal  amount of each Loan for the period  commencing on the date
such Loan is made until such Loan is paid in full, on each Interest Payment Date
and at maturity (whether at stated maturity, by acceleration or otherwise),  and
thereafter on demand,  at the following rates per annum: (i) during such periods
that such Loan is a Floating Rate Loan,  the Floating Rate, and (ii) during such
periods that such Loan is a Eurodollar  Loan, the Eurodollar  Rate applicable to
such Loan for each related Eurodollar Interest Period.


CREDIT AGREEMENT                                                      Page 16




          (b)  Notwithstanding the foregoing paragraph (a), the Borrowers hereby
agree,  if  requested by the  Required  Banks,  to pay interest on demand at the
Overdue  Rate on the  outstanding  principal  amount  of any Loan and any  other
amount payable by the Borrowers  hereunder (other than interest) upon and during
the continuance of any Default.

     4.3 Fees.  (a) The  Borrowers  agree to pay to the Agent,  for the pro rata
account of the Banks in accordance with their Pro Rata Shares,  a commitment fee
computed at the per annum rate equal to the  Applicable  Margin on the amount by
which the Commitments exceed the aggregate  outstanding  principal amount of the
Advances,  for the period from the Effective  Date until the  Termination  Date.
Such fees shall be paid  quarterly in arrears,  on the last Business Day of each
March, June, September and December, commencing on the first such date after the
Effective Date, and on the Termination Date.

          (b) The  Borrowers  agree (i) to pay to the Agent,  for the benefit of
the  Banks,  a fee  computed  at the  Applicable  Margin on the  maximum  amount
available  to be drawn under each Letter of Credit at the time such fee is to be
paid for the period  from and  including  the date of issuance of such Letter of
Credit to and  including  the stated  expiry date of such Letter of Credit,  and
(ii) to pay an additional  fee to the Agent for its own account  computed at the
rate of 0.25% per annum on such maximum amount for such period.  Such fees shall
be payable  each month in  advance,  payable on the date of the  issuance of any
Letter of Credit and each month thereafter.  Such fees are nonrefundable and the
Borrowers  shall not be entitled  to any rebate of any  portion  thereof if such
Letter of Credit  does not remain  outstanding  through  the date for which such
fees have been paid. The Borrowers further agree to pay to the Agent, on demand,
such other customary  administrative  fees, charges and expenses of the Agent in
respect  of the  issuance,  negotiation,  acceptance,  amendment,  transfer  and
payment  of  each  Letter  of  Credit  or  otherwise  payable  pursuant  to  the
application  and  related  documentation  under  which such  Letter of Credit is
issued.

          (c) The Borrowers  agree to pay to the Agent agency and servicing fees
for its  services  under this  Agreement  in such amounts as it may from time to
time be agreed upon  between  the  Borrowers  and the Agent,  which fee shall be
retained solely by the Agent.

     4.4 Payment Method. All payments to be made by the Borrowers hereunder will
be made in  Dollars  and in  immediately  available  funds  to the  Agent at its
address set forth in Section 10.2 not later than 11:00 a.m.  Chicago time on the
date on which such payment shall become due.  Payments received after 11:00 a.m.
Chicago  time shall be deemed to be  payments  made prior to 11:00 a.m.  Chicago
time on the next  succeeding  Business  Day.  At the time of  making  each  such
payment,  the  Borrowers  shall  specify  to the Agent  that  obligation  of the
Borrowers  hereunder  to which such  payment is to be applied,  or, in the event
that the  Borrowers  fail to so  specify  or if an Event of  Default  shall have
occurred  and be  continuing,  the  Agent  may  apply  such  payments  as it may
determine in its sole  discretion.  On the day such payments are  received,  the
Agent  shall  remit  to the  Banks  their  respective  Pro Rata  Shares  of such
payments, in immediately available funds.

     4.5 No Setoff or  Deduction.  All  payments of principal of and interest on
the Advances and other amounts payable by the Borrowers  hereunder shall be made
by the  Borrowers  without  setoff or  counterclaim,  and free and clear of, and
without  deduction or  withholding  for, or on account of, any present or future
taxes, levies, imposts, duties, fees, assessments,  or other charges of whatever
nature, imposed by any governmental authority,  or by any department,  agency or
other political subdivision or taxing authority.

     4.6 Payment on Non-Business Day; Payment Computations.  Except as otherwise
provided  in  this  Agreement  to the  contrary,  whenever  any  installment  of
principal  of, or interest on, any Advances  outstanding  hereunder or any other
amount due  hereunder,  becomes due and payable on a day which is not a Business
Day, the maturity thereof shall be extended to the next succeeding  Business Day


CREDIT AGREEMENT                                                      Page 17





and, in the case of any  installment  of  principal,  interest  shall be payable
thereon  at the rate per annum  determined  in  accordance  with this  Agreement
during such extension. Computations of interest and other amounts due under this
Agreement shall be made on the basis of a year of 360 days for the actual number
of days  elapsed,  including  the  first day but  excluding  the last day of the
relevant period.

     4.7. Yield Protection. If any law or any governmental or quasi-governmental
rule,  regulation,  policy,  guideline or  directive  (whether or not having the
force of law),  or any  interpretation  thereof,  or the  compliance of any Bank
therewith,

               (i) subjects any Bank or any applicable  Lending  Installation to
any tax, duty,  charge or withholding on or from payments due from the Borrowers
(excluding  federal taxation of the overall net income of any Bank or applicable
Lending Installation),  or changes the basis of taxation of payments to any Bank
in respect of its Loans or other amounts due it hereunder, or

               (ii)  imposes  or  increases  or deems  applicable  any  reserve,
assessment,  insurance charge,  special deposit or similar  requirement  against
assets of,  deposits with or for the account of, or credit extended by, any Bank
or any  applicable  Lending  Installation  (other than reserves and  assessments
taken into account in  determining  the interest  rate  applicable to Eurodollar
Loans), or

               (iii)  imposes  any  other  condition  the  result of which is to
increase the cost to any Bank or any applicable Lending  Installation of making,
funding or maintaining loans or reduces any amount receivable by any Bank or any
applicable  Lending  Installation in connection with loans, or requires any Bank
or any  applicable  Lending  Installation  to make  any  payment  calculated  by
reference  to the amount of loans held or interest  received by it, by an amount
deemed material by such Bank,

then,  within 30 days of demand by such Bank, the Borrowers  shall pay such Bank
that  portion of such  increased  expense  incurred  or  reduction  in an amount
received  which such Bank  determines  is  attributable  to making,  funding and
maintaining its Loans and its Commitment.

     4.8.  Changes in Capital  Adequacy  Regulations.  If a Bank  determines the
amount of capital  required  or  expected  to be  maintained  by such Bank,  any
Lending  Installation of such Bank or any corporation  controlling  such Bank is
increased as a result of a Change,  then, within 15 days of demand by such Bank,
the Borrowers  shall pay such Bank the amount  necessary to  compensate  for any
shortfall in the rate of return on the portion of such  increased  capital which
such Bank  determines is  attributable  to this  Agreement,  its Advances or its
Commitment  (after  taking  into  account  such  Bank's  policies  as to capital
adequacy). "Change" means (i) any change after the date of this Agreement in the
Risk-Based  Capital  Guidelines  or (ii) any  adoption of or change in any other
law, governmental or quasi-governmental  rule,  regulation,  policy,  guideline,
interpretation,  or directive (whether or not having the force of law) after the
date of this Agreement which affects the amount of capital  required or expected
to be  maintained  by any Bank or any Lending  Installation  or any  corporation
controlling any Bank.  "Risk-Based  Capital Guidelines" means (i) the risk-based
capital guidelines in effect in the United States on the date of this Agreement,
including  transition  rules,  and (ii) the  corresponding  capital  regulations
promulgated by regulatory authorities outside the United States implementing the
July 1988 report of the Basle  Committee on Banking  Regulation and  Supervisory
Practices  Entitled  "International  Convergence  of  Capital  Measurements  and
Capital  Standards,"  including  transition  rules,  and any  amendments to such
regulations adopted prior to the date of this Agreement.

     4.9.  Availability  of  Types of  Advances.  If any  Bank  determines  that
maintenance of its Eurodollar  Loans at a suitable  Lending  Installation  would
violate any  applicable  law,  rule,  regulation,  or directive,  whether or not
having the force of law, or if the Required Banks determine that (i) deposits of


CREDIT AGREEMENT                                                      Page 18






a type and maturity appropriate to match fund Eurodollar Loans are not available
or (ii) the interest rate  applicable  to a Type of Advance does not  accurately
reflect the cost of making or  maintaining  such  Advance,  then the Agent shall
suspend  the  availability  of the  affected  Type of Advance  and  require  any
Eurodollar Loans of the affected Type to be repaid.

     4.10. Funding  Indemnification.  If any payment of a Eurodollar Loan occurs
on a date which is not the last day of the applicable  Interest Period,  whether
because of  acceleration,  prepayment or otherwise,  or a Eurodollar Loan is not
made on the date specified by the Borrowers for any reason other than default by
the Banks,  the Borrowers will indemnify each Bank for any loss or cost incurred
by it resulting therefrom,  including,  without limitation,  any loss or cost in
liquidating  or employing  deposits  acquired to fund or maintain the Eurodollar
Loan.

     4.11.  Bank  Statements;  Survival of Indemnity.  To the extent  reasonably
possible,  each Bank shall  designate an  alternate  Lending  Installation  with
respect to its Eurodollar Loans to reduce any liability of the Borrowers to such
Bank  under  Sections  4.7 and 4.8 or to avoid the  unavailability  of a Type of
Advance under Section 4.9, so long as such designation is not disadvantageous to
such  Bank.  Each Bank  shall  deliver a written  statement  of such Bank to the
Borrowers  (with  a copy to the  Agent)  as to the  amount  due,  if any,  under
Sections 4.7, 4.8 or 4.10. Such written  statement shall set forth in reasonable
detail the calculations upon which such Bank determined such amount and shall be
final, conclusive and binding on the Borrowers in the absence of manifest error.
Determination  of amounts  payable  under such  Sections  in  connection  with a
Eurodollar  Loan shall be calculated  as though each Bank funded its  Eurodollar
Loan through the purchase of a deposit of the type and maturity corresponding to
the deposit used as a reference in determining the Eurodollar Rate applicable to
such Loan,  whether in fact that is the case or not. Unless  otherwise  provided
herein,  the amount  specified  in the  written  statement  of any Bank shall be
payable on demand after receipt by the Borrowers of such written statement.  The
obligations  of the  Borrowers  under  Sections  4.7, 4.8 and 4.10 shall survive
payment of the Bank Obligations and termination of this Agreement.

         SECTION 5. Security

     5.1  Security  Documents.  To  secure  all  indebtedness,  obligations  and
liabilities  under  this  Agreement,  the Notes,  the  Security  Documents,  the
Advances,  any Swap  Agreements  among any Borrower and any Lender and to secure
all other  Indebtedness  and  obligations  of the Borrowers to the Agent and the
Banks pursuant thereto, whether direct or indirect,  absolute or contingent, due
or to become due, now existing or hereafter arising, the Borrowers shall:

          (a) Execute and deliver to the Agent, promptly upon the request of the
Agent or the  Required  Banks,  such  indentures  of  mortgage,  deeds of trust,
security agreements, financing statements and assignment of production and other
agreements,  including  without  limitation any amendments to any such documents
previously  executed and delivered in favor of the Agent or any Bank (as amended
or modified from time to time,  the  "Mortgages"  and together with the Security
Agreements, and all agreements and documents described in this Section 5.1(a) or
in 5.1(b) or 5.2 and all other agreements and documents securing any of the Bank
Obligations  at any time or otherwise  executed by any Borrower with or in favor
of the Agent and the  Banks,  and  including  without  limitation  the Letter of
Credit  Documents,  as  amended or  modified  from time to time,  the  "Security
Documents"),  in form and substance satisfactory to the Required Banks, granting
the Agent,  for the  benefit  of the  Banks,  a  first-priority,  perfected  and
enforceable lien and security interest,  subject only to the Permitted Liens, in
the following (collectively,  with all other assets described in Section 5.1(b),
the  "Collateral"):  all oil, gas and mineral properties and all other assets of
the Borrowers as requested at any time by the Required Banks,  including without
limitation  all  leasehold  and  royalty  interests  and  all  other  rights  in
connection  therewith,  and all  interests in machinery,  equipment,  materials,
improvements,  hereditaments,  appurtenances and other property,  real, Personal
and/or  mixed,  now or hereafter a part of or obtained in or used in  connection


CREDIT AGREEMENT                                                      Page 19





with such  properties and all interests in and to any and all oil, gas and other
minerals now in storage or now or hereafter  located in,  under,  on or produced
from,  such  properties and an assignment of production  from such properties to
the Agent;

          (b) Execute and deliver to the Agent, on or before the Effective Date,
such security  agreements,  pledge  agreements,  financing  statements and other
agreements,  including without  limitation the Consent and Amendment of Security
Documents   confirming  the  continuing   effectiveness  of  Security  Documents
previously  executed  and  delivered  to the  Agent or any Bank (as  amended  or
modified from time to time,  the "Security  Agreements"),  in form and substance
satisfactory  to the Required Banks,  granting to the Agent,  for the benefit of
the Banks,  a first-  priority,  perfected  and  enforceable  lien and  security
interest,  subject only to the Permitted  Liens,  in all other  assets,  whether
real,  personal  or mixed,  and  whether  now owned or  hereafter  existing  and
wherever located, of the Borrowers.

         5.2  Additional  Security  Documents.  If at any time  requested by the
Agent or the  Required  Banks,  the  Borrowers  shall  execute and deliver  such
additional  documents,  and shall  take such other  action,  as the Agent or the
Required  Banks may  reasonably  consider  necessary  or proper to  evidence  or
perfect the liens and security interests described in Section 5.1 hereof.

         SECTION 6. Representations and Warranties.

         Each of the Borrowers represents and warrants that:

         6.1 Corporate  Existence and Power. It is a corporation duly organized,
validly  existing and in good standing under the laws of the jurisdiction of its
incorporation, and is duly qualified to do business and in good standing in each
additional  jurisdiction  where  failure  to so  qualify  would  have a Material
Adverse Effect.  It has all requisite  corporate power to own its properties and
to carry on its business as now being conducted and as proposed to be conducted,
and to execute and deliver this Agreement,  the Notes and the Security Documents
and to engage in the transactions  contemplated by this Agreement, the Notes and
the Security Documents.

         6.2 Corporate Authority. The execution,  delivery and performance by it
of this Agreement, the Notes and the Security Documents are within its corporate
powers,  have been duly authorized by all necessary corporate action and are not
in contravention of any law, rule or regulation, or any judgment,  decree, writ,
injunction,  order or award of any arbitrator,  court or governmental authority,
or of the terms of its charter or by-laws,  or of any contract or undertaking to
which it is a party or by which it or its property may be bound or affected.

         6.3 Binding  Effect.  This Agreement is, and the Notes and the Security
Documents to which it is a party when delivered  hereunder will be, legal, valid
and binding obligations of each Borrower, enforceable against each in accordance
with their respective terms.

         6.4 Subsidiaries.  All Subsidiaries of CRI are duly organized,  validly
existing  and in  good  standing  under  the  laws  of  their  jurisdictions  of
organization  and are duly qualified to do business in each  jurisdiction  where
failure to so qualify  would have a Material  Adverse  Effect.  All  outstanding
shares of capital  stock of each class of each  Subsidiary  of CRI have been and
will be validly issued and are and will be fully paid and  nonassessable and are
and will be owned,  beneficially  and of record,  by CRI,  free and clear of any
Liens.  Schedule 6.4 is a complete list of all  Subsidiaries  of CRI. COG is and
will  remain  a wholly  owned  subsidiary  of CRI and COGL is and will  remain a
wholly owned  subsidiary  of COG, and Offshore is and will remain a wholly owned
subsidiary of COGL. Comstock Management Corporation, a Nevada corporation,  does
not have  material  assets  and the  Borrowers  agree  that it will not have any
material assets at any time.


CREDIT AGREEMENT                                                      Page 20




     6.5 Liens.  The  properties  of each  Borrower and each  Subsidiary  of any
Borrower  (including  without  limitation the Collateral) are not subject to any
Lien except Permitted Liens.

     6.6 Litigation.  There is no action,  suit or proceeding pending or, to the
best of its  knowledge,  threatened  against  or  affecting  it before or by any
court, governmental authority, or arbitrator which would be reasonably likely to
result in, either  individually or collectively,  a Material Adverse Effect and,
to the best of the Borrowers' knowledge,  there is no basis for any such action,
suit or proceeding.

     6.7  Financial  Condition.  The  consolidated  balance sheet of CRI and its
Subsidiaries and the consolidated  statements of income and cash flow of CRI and
its  Subsidiaries for the fiscal year ended December 31, 1996 and reported on by
Arthur Andersen,  LLP, and the interim consolidated balance sheet of CRI and its
Subsidiaries and the interim consolidated  statements of income and cash flow of
CRI and its Subsidiaries for the fiscal quarter of CRI ended September 30, 1997,
copies of which  have been  furnished  to the  Banks,  fairly  present,  and the
financial  statements of CRI and its  Subsidiaries  to be delivered  pursuant to
Section 7.1(d) will fairly present,  the consolidated  financial position of CRI
and its  Subsidiaries as of the respective  dates thereof,  and the consolidated
results of operations of CRI and its Subsidiaries  for their respective  periods
indicated,  all in accordance  with  generally  accepted  accounting  principles
consistently  applied.  There has been no event or development  which has had or
would be reasonably  likely to have a Material Adverse Effect since December 31,
1996.  There  is  no  material  Contingent  Liability  of  CRI  or  any  of  its
Subsidiaries that is not reflected in such financial  statements or in the notes
thereto.

     6.8 Use of  Advances.  The  Advances  will be used for working  capital and
general  corporate  purposes,  including  acquisitions.  No Borrower  extends or
maintains, in the ordinary course of business,  credit for the purpose,  whether
immediate,  incidental,  or ultimate, of buying or carrying margin stock (within
the meaning of  Regulation U of the Board of  Governors  of the Federal  Reserve
System),  and no  part of the  proceeds  of each  Advance  will be used  for the
purpose, whether immediate,  incidental,  or ultimate, of buying or carrying any
such margin stock or maintaining or extending credit to others for such purpose.
After  applying  the  proceeds  of the  Advances,  such  margin  stock  will not
constitute  more than 25% of the value of the  assets  that are  subject  to any
provisions  of this  Agreement  or any  Security  Document  that may  cause  the
Advances to be secured, directly or indirectly by margin stock.

     6.9  Security  Documents.   The  Security  Documents  create  a  valid  and
enforceable first-priority lien on and perfected security interest in all right,
title and interest of each Borrower in and to the Collateral  described therein,
securing  all  amounts  intended  to  be  secured  thereby   (including  without
limitation  all  principal  of and  interest on the Notes)  subject  only to the
Permitted Liens. The respective net revenue interests of each Borrower in and to
the Oil and Gas  Interests as set forth in the Security  Documents  are true and
correct and  accurately  reflect the interests to which each Borrower is legally
entitled, subject only to the Permitted Liens.

     6.10  Consents,   Etc.  No  consent,   approval  or   authorization  of  or
declaration,  registration  or filing  with any  governmental  authority  or any
nongovernmental  Person or entity,  including without limitation any creditor or
stockholder  of it,  is  required  on the  part  of it in  connection  with  the
execution,  delivery and performance of this Agreement,  the Notes, the Security
Documents  or the  transactions  contemplated  hereby or as a  condition  to the
legality,  validity or enforceability of this Agreement, the Notes or any of the
Security Documents.

     6.11  Taxes.  It has  filed all tax  returns  (federal,  state  and  local)
required to be filed and has paid all taxes shown  thereon to be due,  including
interest and penalties,  or has established  adequate  financial reserves on its
books and records for payment  thereof,  except where the failure to do so would
not have a Material Adverse Effect.


CREDIT AGREEMENT                                                      Page 21





     6.12 Title to Properties.  It has good and defensible title to, and a valid
indefeasible ownership interest in, all of its properties and assets (including,
without  limitation,  the Collateral subject to the Security Documents) free and
clear of any Lien  except the  Permitted  Liens,  and it is the owner of all the
Collateral described in the Security Documents to which it is a party. All wells
on any of the mortgaged premises have been drilled, operated, shut-in, abandoned
or  suspended  in  accordance  with  good  oil and gas  field  practices  and in
compliance with all applicable laws, permits,  statutes, orders, licenses, rules
and  regulations.  All leases with respect to any Oil and Gas Interests owned by
any  Borrower  are in good  standing  and  are in full  force  and  effect,  all
royalties,  rents,  taxes,  assessments  and other  payments  thereunder or with
respect thereto have been properly and timely paid and all conditions  necessary
to keep such leases in full force have been fully performed,  including  without
limitation  any condition to maintain  continuous  production or other  activity
with respect  thereto.  The Borrowers have delivered to the Agent title opinions
with  respect  to at  least  80% of the  value  of the  assets  included  in the
Borrowing Base. All transactions contemplated pursuant to the Purchase Documents
have been completed, including without limitation the acquisition by COGL (to be
assigned to Offshore)  of the  Purchased  Bois D'Arc Assets  (other than certain
assets not  substantial in amount in the aggregate  which will be transferred to
Offshore  in  January,  1998) and have been  completed  in  accordance  with all
applicable laws and  regulations.  Offshore owns the Purchased Bois D'Arc Assets
free and clear of all Liens  other than under the  Security  Documents,  and the
Security  Documents  delivered on the  Effective  Date create a first  priority,
perfected and enforceable  lien and security  interest in favor of the Agent for
the benefit of the Banks on all Purchased  Bois D'Arc Assets owned by any of the
Borrowers.

     6.13 ERISA.  CRI and its  Subsidiaries and their Plans are in compliance in
all material  respects with those  provisions of ERISA and of the Code which are
applicable  with respect to any Plan. No prohibited  transaction  (as defined in
Section 406 of ERISA and Section 9975 of the Code) and no  reportable  event (as
defined in ERISA) has occurred with respect to any Plan. Neither CRI, any of its
Subsidiaries  nor any of its ERISA Affiliates is an employer with respect to any
multiemployer  plan (as  defined  in Section  4001(a)(3)  of  ERISA).  CRI,  its
Subsidiaries and the ERISA Affiliates have met the minimum funding  requirements
under ERISA and the Code with respect to each of the respective  Plans,  if any,
and  have not  incurred  any  liability  to the  PBGC or any  Plan.  There is no
unfunded benefit liability with respect to any Plan.

     6.14 Environmental and Safety Matters.  It is in compliance in all material
respects  with all federal,  state and local laws,  ordinances  and  regulations
relating to safety and  industrial  hygiene or to the  environmental  condition,
including without limitation all Environmental Laws in jurisdictions in which it
owns any  interest in or operates,  a well, a facility or site,  or arranges for
disposal or treatment of hazardous  substances,  solid waste,  or other  wastes,
accepts for transporting any hazardous substances, solid waste, or other wastes,
or holds any  interest in real  property  or  otherwise,  except  where any such
noncompliance  would not have a  Material  Adverse  Effect.  No  demand,  claim,
notice, suit, suit in equity, action,  administrative  action,  investigation or
inquiry whether brought by any governmental authority,  private Person or entity
or otherwise, arising under, relating to or in connection with any Environmental
Laws is pending or, to the best of any Borrower's knowledge,  threatened against
it, any real  property  in which it holds or has held an interest or any past or
present  operation  of  it.  It (a)  does  not  know  of any  federal  or  state
investigation  evaluating  whether any remedial action is needed to respond to a
release of any toxic  substances,  radioactive  materials,  hazardous  wastes or
related  materials into the environment,  (b) has not received any notice of any
toxic substances,  radioactive  materials,  hazardous waste or related materials
in, or upon any of its  properties in violation of any  Environmental  Laws, and
(c) does not know of any basis for any such investigation,  notice or violation.
No material release,  threatened  release or disposal of hazardous waste,  solid
waste or other  wastes is  occurring  or has  occurred  on, under or to any real
property in which it holds any  interest or performs any of its  operations,  in
violation of any Environmental Law which would have a Material Adverse Effect.


CREDIT AGREEMENT                                                      Page 22





     6.15 Direct  Benefit.  The initial  Advances  hereunder and all  additional
Advances are for the direct  benefit of each of the  Borrowers,  and the initial
Advances  hereunder  are  used to  refinance  and  replace  indebtedness  owing,
directly or indirectly,  by the Borrowers to the Banks under the Existing Credit
Agreement.  The Borrowers are engaged as an integrated  group in the business of
oil and gas exploration and related fields,  and any benefits to any Borrower is
a  benefit  to all  of  them,  both  directly  or  indirectly,  inasmuch  as the
successful  operation  and  condition of the  Borrowers  is  dependent  upon the
continued  successful  performance of the functions of the integrated group as a
whole.

     6.16  Solvency.  Each of the  following  is true for each  Borrower and the
Borrowers on a consolidated  basis:  (a) the fair saleable value of its property
is (i) greater than the total amount of its  liabilities  (including  contingent
liabilities), and (ii) greater than the amount that would be required to pay its
probable aggregate  liability on its then existing debts as they become absolute
and matured; (b) its property is not unreasonable in relation to its business or
any contemplated or undertaken transaction; and (c) it does not intend to incur,
or believe  that it will  incur,  debts  beyond its ability to pay such debts as
they become due.

     6.17  Disclosure.  This  Agreement and all other  documents,  certificates,
reports or statements or other information furnished to any Bank or the Agent in
writing by or on behalf of any Borrower in connection  with the  negotiation  or
administration  of this Agreement or any transactions  contemplated  hereby when
read together do not contain any untrue  statement of a material fact or omit to
state a material fact necessary in order to make the statements contained herein
and therein not  misleading.  There is no fact known to any  Borrower  which has
caused,  or which likely would in the future in the  reasonable  judgment of the
Borrowers cause, a Material  Adverse Effect (except for any economic  conditions
which  affect   generally   the  industry  in  which  the  Borrowers  and  their
Subsidiaries  conduct business),  which has not been set forth in this Agreement
or  in  the  other  documents,  certificates,   statements,  reports  and  other
information furnished in writing to the Banks by or on behalf of any Borrower in
connection with the transactions contemplated hereby.

     SECTION 7. Covenants.

     7.1 Affirmative  Covenants.  Each Borrower covenants and agrees that, until
the payment in full of the principal of and accrued  interest on the Notes,  the
expiration  of this  Agreement  and all  Letters of Credit and the  payment  and
performance of all other obligations of the Borrowers under this Agreement,  the
Notes and the  Security  Documents,  unless the Required  Banks shall  otherwise
consent in writing, each of the Borrowers shall:

          (a) Preservation of Corporate  Existence,  Etc.  Preserve and maintain
its  corporate  existence,  rights and  privileges  and its  material  licenses,
franchises and permits,  and qualify and remain  qualified as a validly existing
corporation in good standing in each jurisdiction in which such qualification is
necessary under applicable law.

          (b) Compliance with Laws,  Etc.  Comply in all material  respects with
all  applicable  laws,  rules,   regulations  and  orders  of  any  governmental
authority, whether federal,state, local or foreign (including without limitation
ERISA,  the Code and  Environmental  Laws), in effect from time to time; and pay
and discharge promptly when due all taxes,  assessments and governmental charges
or levies imposed upon it or upon its income,  revenues or property,  before the
same shall become  delinquent  or in default,  as well as all lawful  claims for
labor, materials and supplies or otherwise, which, if unpaid, might give rise to
Liens upon such  properties  or any portion  thereof,  except to the extent that
payment  of any of the  foregoing  is then  being  contested  in good  faith  by
appropriate  legal  proceedings  and with  respect to which  adequate  financial
reserves have been established on its books and records.


CREDIT AGREEMENT                                                      Page 23





          (c)  Maintenance  of  Properties;  Insurance.  Maintain,  preserve and
protect all  property  that is material to the conduct of its  business and keep
such property in good repair,  working order and condition and from time to time
make, or cause to be made, all needful and proper repairs, renewals,  additions,
improvements  and  replacements  thereto  necessary  in order that the  business
carried on in  connection  therewith  may be properly  conducted at all times in
accordance with customary and prudent business practices for similar businesses;
comply with all applicable permits,  statutes, laws, orders, licenses, rules and
regulations  relating to the Oil and Gas  Interests  owned by it, unless any non
compliance would not cause a Material Adverse Effect,  and ensure that all wells
and other properties operated by it, either in its own name or as a partner, are
operated in accordance with prudent oil and gas field practices; comply with all
of its  duties  and  obligations  under,  and  take  all  actions  to  maintain,
consistent  with prudent oil and gas  practices,  all leases and other rights in
full force and effect;  and, in addition to that  insurance  required  under the
Security Documents, maintain in full force and effect insurance with responsible
and reputable insurance companies or associations in such amounts, on such terms
and  covering  such risks,  including  fire and other risks  insured  against by
extended  coverage,  as is  usually  carried  by  companies  engaged  in similar
businesses and owning similar properties similarly situated and maintain in full
force and  effect  public  liability  insurance,  insurance  against  claims for
personal injury or death or property damage  occurring in connection with any of
its activities or any of any properties owned,  occupied or controlled by it, in
such amount as it shall  reasonably  deem  necessary,  and  maintain  such other
insurance  as may be required by law or as may be  reasonably  requested  by the
Banks for purposes of assuring compliance with this Section 7.1(c).

          (d)  Reporting  Requirements.  Furnish  to  each  Bank,  in  form  and
substance satisfactory to the Required Banks, the following:

               (i) Promptly and in any event  within three  calendar  days after
becoming aware of the occurrence of (A) any Default, (B) the commencement of any
material  litigation against, by or affecting the Borrowers and, upon request by
any Bank,  any material  developments  therein,  or (C) any  development  in the
business or affairs of the  Borrowers  which has resulted in, or which is likely
in the  reasonable  judgment of the  Borrowers to result in  (including  without
limitation the entering into of any material contract and/or  undertaking by the
Borrowers) a Material  Adverse Effect or (D) any "reportable  event" (as defined
in ERISA) under,  or the institution of steps by the Borrowers or any Subsidiary
to withdraw  from, or the  institution  of any steps to  terminate,  any Plan, a
statement of the chief financial  officer of the Borrowers setting forth details
of such  Default or such event or condition  or such  litigation  and the action
which CRI or any Subsidiary has taken and proposes to take with respect thereto;

               (ii) As soon as  available  and in any event within 45 days after
the end of each fiscal  quarter of CRI, the  consolidated  balance sheets of CRI
and its Subsidiaries as of the end of such quarter, and the related consolidated
statements  of income and cash flow for the period  commencing at the end of the
previous  fiscal year and ending with the end of such quarter,  setting forth in
each case in comparative form the  corresponding  figures for the  corresponding
date or period of the preceding  fiscal year, all in reasonable  detail and duly
certified (subject to year-end audit  adjustments) by an appropriate  officer of
the  Borrowers as having been  prepared in accordance  with  generally  accepted
accounting principles,  together with a certificate of an appropriate officer of
the Borrowers with a computation in reasonable detail  calculating the covenants
contained in Sections 7.2(a), (b), (c), (i) and (j);

               (iii) As soon as available and in any event within 120 days after
the end of each fiscal year, a copy of the consolidated balance sheet of CRI and
its Subsidiaries for such fiscal year and related  statements of income and cash
flow with a  customary  audit  report  thereon by Arthur  Andersen  LLP or other
independent  certified public accountants  selected by CRI and acceptable to the
Banks,  without  qualifications  unacceptable  to  the  Banks,  together  with a


CREDIT AGREEMENT                                                      Page 24





certificate of such  accountants  stating that they have reviewed this Agreement
and stating  further that in making their review in  accordance  with  generally
accepted  accounting  principles  nothing came to their attention that made them
believe that any Default  exists,  or if their  examination  has  disclosed  the
existence of any Default,  specifying the nature, period of existence and status
thereof,  together with a certificate of an appropriate officer of the Borrowers
with a computation in reasonable detail  calculating the covenants  contained in
Sections 7.2(a), (b), (c), (i) and (j) hereof;

               (iv) Upon the  request  of the  Required  Banks or the  Agent,  a
schedule of all oil,  gas,  and other  mineral  production  attributable  to all
material Oil and Gas Interests of the  Borrowers,  and in any event all such Oil
and Gas Interests included in the Borrowing Base;

               (v) Promptly,  all title or other information  received after the
Effective Date by any Borrower which  discloses any material defect in the title
to any material asset included in the Borrowing Base;

               (vi) As soon as practicable and in any event within 30 days after
the  sending or filing  thereof,  copies of all such  financial  statements  and
reports as it shall send to its security  holders and of all final  prospectuses
under the Securities  Act of 1933 (other than Form S-8),  reports on Forms 10-Q,
10-K and 8-K and all similar  regular and periodic  reports filed by it (i) with
any federal  department,  bureau,  commission or agency from time to time having
jurisdiction  with respect to the sale of securities or (ii) with any securities
exchange;

               (vii) (A) As soon as  available  and in any event  within 90 days
after each January 1,  commencing with January 1, 1998, an annual reserve report
as of each such  January  1 with  respect  to all  Hydrocarbon  reserves  of the
Borrowers  prepared by an independent  engineering  firm of recognized  standing
acceptable to the Required Banks in accordance with accepted industry  practices
and otherwise acceptable and in form and substance  satisfactory to the Required
Banks,  and including  without  limitation all assets  included in the Borrowing
Base,  and (B) within 90 days after each July 1 thereafter,  a reserve report as
of such  July 1, with  respect  to all  Hydrocarbon  reserves  of the  Borrowers
prepared by the Borrowers in accordance  with  accepted  industry  practices and
otherwise  acceptable  and in form and  substance  satisfactory  to the Required
Banks,  and including  without  limitation all assets  included in the Borrowing
Base;

               (viii) On or within 30 days after the request of the Agent or the
Required  Banks,  in connection  with a  redetermination  of the Borrowing  Base
permitted  under  Section  9.14 an updated  reserve  report with  respect to all
Hydrocarbon  reserves of the Borrowers  prepared by an  independent  engineering
firm of recognized  standing acceptable to the Required Banks in accordance with
accepted industry  practices and otherwise  acceptable and in form and substance
satisfactory to the Required Banks, and including without  limitation all assets
included in the Borrowing Base;

               (ix) Promptly,  any  management  letter from the auditors for any
Borrower and all other  information  respecting the business,  properties or the
condition or operations,  financial or otherwise, including, without limitation,
geological and engineering  data of any Borrower and any title work with respect
to any Oil and Gas  Interests  of any Borrower as any Bank may from time to time
reasonably request;

               (x) At all  times  after  the date  ninety  (90)  days  after the
Effective  Date, if requested by the Required  Banks,  title  opinions and other
opinions  of  counsel,  in each  case in form and  substance  acceptable  to the
Required  Banks,  with respect to at least eighty (80%)  percent of the value of
the assets included in the Borrowing Base; and

          (e) Access to Records,  Books,  Etc. At any  reasonable  time and from
time to time, permit any Bank or any agents or representatives  thereof,  at the
Borrowers' own expense,


CREDIT AGREEMENT                                                      Page 25





to  examine  and make  copies of and  abstracts  from the  records  and books of
account  of, and visit the  properties  of, the  Borrowers,  and to discuss  the
affairs,  finances and accounts of the Borrowers with their respective  officers
and employees.  Without limiting the foregoing,  the Borrowers agree that at any
reasonable time and from time to time, the Borrowers will permit any Bank or any
agents or  representatives  thereof to inspect,  at the office of the  Borrowers
listed on its  signature  page hereto,  all  opinions  with respect to title and
other material work received by the Borrowers with respect to any asset included
in the Borrowing Base.

     7.2  Negative  Covenants.  Until  payment in full of the  principal  of and
accrued  interest on the Notes, the expiration of this Agreement and all Letters
of Credit  and the  payment  and  performance  of all other  obligations  of the
Borrowers and each Guarantor  under this  Agreement,  the Notes and the Security
Documents,  each Borrower agrees that, unless the Required Banks shall otherwise
consent in writing, none of them shall:

          (a)  Current  Ratio.  Permit  or  suffer  the  ratio of (i) the sum of
Current Assets plus the unused  availability under the revolving credit facility
established  by Section  2.1(a),  to (ii) Current  Liabilities at any time to be
less than 1.0 to 1.0.

          (b) Tangible  Net Worth.  Permit or suffer  Consolidated  Tangible Net
Worth of CRI and its  Subsidiaries,  at any time, to be less than the sum of (i)
$95,000,000,  plus (ii) 50% of  Consolidated  Net Income for the fiscal  quarter
ending  December 31, 1997 and for each fiscal year,  commencing  with the fiscal
year ending December 31, 1998, and to be added as of the last day of such fiscal
quarter and each such fiscal year, provided that if such Consolidated Net Income
is negative  in such  fiscal  quarter or in any fiscal  year,  the amount  added
pursuant to this clause (ii) shall be zero and shall not reduce the amount added
pursuant to this clause (ii) for any other  fiscal  year,  plus (iii) 75% of the
net cash  proceeds of any equity  offering or other sale of equity of CRI or any
of its Subsidiaries.

          (c) Interest  Coverage Ratio.  Permit or suffer, as of the last day of
any fiscal  quarter of CRI, the ratio of (i) EBITDA,  as calculated for the four
fiscal  quarters  then  ending,  to  (ii)  Consolidated   Interest  Expense,  as
calculated for the four fiscal quarters then ending, to be less than 2.5 to 1.0.

          (d) Indebtedness.  Create,  incur,  assume,  guaranty or in any manner
become liable in respect of, or suffer to exist, any Indebtedness other than:

               (i) The Advances;

               (ii) Other  Indebtedness in aggregate  outstanding  amount not to
exceed $5,000,000;

               (iii)  Unsecured  insurance  premium  financing  incurred  in the
ordinary course of business;

               (iv)  Indebtedness  pursuant to any Swap Agreement with any Bank,
any Person with an investment grade debt rating  acceptable to the Agent and any
other Person acceptable to the Agent; and

               (v) Indebtedness permitted pursuant to Section 7.2(i).

          (e) Liens.  Create, incur or suffer to exist, any Lien to exist on any
assets,  rights,  revenues or  property,  real,  personal or mixed,  tangible or
intangible, other than:


CREDIT AGREEMENT                                                      Page 26




               (i) Liens for taxes not  delinquent or for taxes being  contested
in good faith by  appropriate  proceedings  and as to which  adequate  financial
reserves have been established on its books and records;

               (ii) Liens  (other  than any Lien  imposed by ERISA)  created and
maintained  in the  ordinary  course of business  which are not  material in the
aggregate,  and  which  would  not have a  Material  Adverse  Effect  and  which
constitute   (A)  pledges  or  deposits  under   worker's   compensation   laws,
unemployment  insurance laws or similar legislation,  (B) good faith deposits in
connection  with bids,  tenders,  contracts or leases to which any Borrower is a
party for a purpose other than borrowing  money or obtaining  credit,  including
rent  security  deposits,  (C) liens  imposed by law, such as those of carriers,
warehousemen,  operators and  mechanics,  if payment of the  obligation  secured
thereby  is not  yet  due,  (D)  Liens  securing  taxes,  assessments  or  other
governmental charges or levies not yet subject to penalties for nonpayment,  and
(E)  pledges  or  deposits  to secure  public or  statutory  obligations  of any
Borrower, or surety, customs or appeal bonds to which such Borrower is a party;

               (iii) Liens created pursuant to the Security  Documents and Liens
expressly  permitted by the Security  Documents,  including  without  limitation
liens securing any reimbursement  and other obligations  pursuant to any Letters
of  Credit  issued  by any  Bank  for the  account  of any  Borrower,  and it is
acknowledged and agreed that,  without limiting the indebtedness  secured by the
Security  Documents,  each Security Document secures all reimbursement and other
obligations  incurred  at any time by any  Borrower  pursuant  to any  Letter of
Credit issued by any Bank for the account of any Borrower;

               (iv) Liens securing  Indebtedness  permitted  pursuant to Section
7.2(d)(iii)  created to secure payment of a portion of the purchase price of, or
existing at the time of acquisition of, any tangible fixed asset acquired by any
Borrower if the outstanding principal amount of the Indebtedness secured by such
Lien does not at any time exceed the  purchase  price paid by such  Borrower for
such  assets,  provided  that such Lien does not encumber any other asset at any
time owned by such Borrower.

          (f) Merger; Acquisitions;  Etc. Purchase or otherwise acquire, whether
in one or a series of  transactions,  unless the Required Banks shall  otherwise
consent in  writing,  all or any  substantial  portion of the  business  assets,
rights,  revenues or property,  real, personal or mixed, tangible or intangible,
of any Person,  or all or any  substantial  portion of the  capital  stock of or
other  ownership  interest  in any other  Person,  nor merge or  consolidate  or
amalgamate  with any  other  Person or take any  other  action  having a similar
effect,  unless in each of the foregoing cases, each of the following conditions
is satisfied:  (i) no Default or Event of Default  exists either before or after
such  acquisition,  merger,  consolidation,  amalgamation or other action have a
similar  effect,   (ii)  if  such   transaction  is  a  merger,   consolidation,
amalgamation  or other  action  having  a  similar  effect,  a  Borrower  is the
surviving  entity and (iii) in the case of any take-over bid or offer to acquire
all or  substantially  all of the outstanding  voting or equity  securities of a
corporation or an acquisition of all or  substantially  all of the assets of any
Person,  the board of directors of the target  corporation  or management of the
target Person(if the target is not a corporation) has recommended  acceptance of
such bid or offer.

          (g) Disposition of Assets;  Etc.  Without the prior written consent of
the Required Banks, sell, lease, license,  transfer, assign or otherwise dispose
of any  Collateral or any of its other  business,  assets,  rights,  revenues or
property,  real, personal or mixed, tangible or intangible,  whether in one or a
series of transactions,  other than (i) inventory sold in the ordinary course of
business upon customary credit terms, and (ii) if no Default has occurred and is
continuing or would be caused thereby, other sales of assets in aggregate amount
not  to  exceed  $15,000,000  in  any  twelve-month  period,  provided  that  in
connection with any such sales in excess of $5,000,000 in aggregate amount since


CREDIT AGREEMENT                                                      Page 27





the date of the most recent  redetermination  of the Borrowing  Base all the net
proceeds  (net only of  reasonable  and  customary  fees  actually  incurred  in
connection  with such  sales and of taxes  paid or  reasonably  estimated  to be
payable as a result thereof), will simultaneously reduce the Borrowing Base by a
like amount.

          (h) Nature of Business.  Make any substantial  change in the nature of
its business from that engaged in on the date of this Agreement or engage in any
other  businesses  other  than  those in which it is engaged on the date of this
Agreement.

          (i)  Investments  and  Advances.  Purchase  or  otherwise  acquire any
capital stock of or other ownership  interest in, or debt securities of or other
evidences of Indebtedness of, any other Person;  nor make any loan or advance of
any of its funds or property or make any other  extension  of credit to, or make
any investment or acquire any interest  whatsoever in, any other Person,  except
(i) loans and advances to officers of the Borrowers, provided that the aggregate
amount of all such loans and advances  does not exceed  $25,000,  (ii) loans and
advances among the Borrowers or any Subsidiary of any Borrower  guaranteeing all
indebtedness,  obligations and liabilities of the Borrowers to the Banks and the
Agent pursuant to a guaranty and other agreements satisfactory to the Agent, and
(iii) other loans and advances,  provided that the aggregate  amount of all such
loans  and   advances,   together  with   Indebtedness   allowed  under  Section
7.2(d)(iii), shall not exceed $5,000,000.

          (j)  Dividends.  With  respect  to CRI only,  make,  pay,  declare  or
authorize any dividend, payment or other distribution in respect of any class of
its capital stock or any dividend,  payment or  distribution  in connection with
the  redemption,   repurchase,   defeasance,  conversion,  retirement  or  other
acquisition, directly or indirectly, of any shares of its capital stock, (all of
the foregoing  defined herein as "Restricted  Payments"),  except (i) Restricted
Payments  payable  solely  in  shares  of  capital  stock of CRI,  and (ii) cash
dividends  (exclusive of those  described in (i) above) paid on, and redemptions
or repurchases of capital stock of, CRI, provided that the aggregate amount paid
for all such  dividends,  redemptions  or  repurchases  after the Effective Date
shall not exceed 25% of Consolidated  Net Income of CRI and its Subsidiaries for
the fiscal year ended immediately prior to such payments,  and provided further,
that both before each such  dividend,  redemption or repurchase and after giving
effect to the  payment in  connection  with each such  dividend,  redemption  or
repurchase  (A) no  Default  or Event of  Default  shall  have  occurred  and be
continuing and (B) all  representations  and  warranties  contained in Section 6
hereof (including  without  limitation Section 6.8) shall be true and correct in
all material  respects as if made at such times. For purposes of this Agreement,
"capital stock" shall include capital stock (preferred, common or other) and any
securities  exchangeable for or convertible into capital stock and any warrants,
rights or other options to purchase or otherwise  acquire  capital stock or such
securities.

          (k)  Transactions  with  Affiliates.  Enter  into or be a party to any
transaction or arrangement with any Affiliate  (including,  without  limitation,
the purchase from, sale to or exchange of property with, or the rendering of any
service by or for, any Affiliate), except in the ordinary course of and pursuant
to the  reasonable  requirements  of the  Borrowers'  business and upon fair and
reasonable  terms no less favorable to such Borrower than would be obtained in a
comparable  arms-length  transaction  with a Person other than an Affiliate  and
except the loans and advances described in Section 7.2(i).

          (l) Additional Covenants. If at any time any Borrower shall enter into
or be a party to any instrument or agreement,  including all such instruments or
agreements  in  existence  as of the date  hereof  and all such  instruments  or
agreements entered into after the date hereof, relating to or amending any terms
or conditions  applicable to any of its Indebtedness  which includes  covenants,
terms,  conditions or defaults not substantially  provided for in this Agreement


CREDIT AGREEMENT                                                      Page 28





or more favorable to the lender or lenders thereunder than those provided for in
this  Agreement,  then the Borrowers  shall promptly so advise the Agent and the
Banks. Thereupon, if the Agent shall request, upon notice to the Borrowers,  the
Agent and the Banks  shall  enter  into an  amendment  to this  Agreement  or an
additional agreement (as the Agent may request), providing for substantially the
same  covenants,  terms,  conditions  and defaults as those provided for in such
instrument  or  agreement  to the extent  required and as may be selected by the
Agent.  In  addition to the  foregoing,  any  covenants,  terms,  conditions  or
defaults in any existing agreements or other documents evidencing or relating to
any  Indebtedness  of any  Borrower  not  substantially  provided  for  in  this
Agreement  or more  favorable  to the holders of such  Indebtedness,  are hereby
incorporated by reference into this Agreement to the same extent as if set forth
fully herein, and no subsequent amendment,  waiver or modification thereof shall
effect any such covenants, terms, conditions or defaults as incorporated herein.

          (m) Financial  Contracts.  Enter into any Swap Agreement (or any other
agreement, device or arrangement providing for payments relating to fluctuations
of interest rates, exchange rates or commodity prices) for purposes of financial
speculation  or  otherwise  not  in  the  ordinary  course  of  business  of the
Borrowers, and any Swap Agreement with respect to fluctuations in interest rates
shall be entered into by the  Borrowers  only with respect to  Indebtedness  for
borrowed money of the Borrowers.

     SECTION 8. Default

     8.1 Events of Default. The occurrence of any one of the following events or
conditions shall be deemed an "Event of Default"  hereunder unless waived by the
Required Banks pursuant to Section 10.1:

          (a) Any Borrower  shall fail to pay within 2 Business Days of when due
any  principal of or interest on the Notes  (whether  pursuant to Section 4.1 or
otherwise), any fees or any other amount payable hereunder or under any Security
Document; or

          (b) Any  representation  or warranty made by any Borrower in Section 6
hereof,  in any  Security  Document  or in any  other  document  or  certificate
furnished by or on behalf of any  Borrower in  connection  with this  Agreement,
shall prove to have been incorrect in any material respect when made; or

          (c) (i) Any  Borrower  shall  fail to  perform  or  observe  any term,
covenant or  agreement  contained  in Sections  7.1(b),  7.1(c)  (other than the
agreement to maintain continuous insurance coverage),  7.1(d), 7.2(a), 7.2(b) or
7.2(c) hereof or in any Security Document,  any other Loan Document or any other
agreement among the Borrowers, the Banks and the Agent, or any of them, and such
failure  shall remain  unremedied  for 30 calendar days after the earlier of the
date notice  thereof shall have been given to Borrowers by the Agent or any Bank
or any  Borrower  knows of such  failure,  or (ii) any  Borrower  shall  fail to
perform or observe any other term,  covenant,  or  agreement  contained  in this
Agreement; or

          (d) Any Borrower  shall fail to pay any part of the  principal of, the
premium, if any, or the interest on, or any other payment of money due under any
of its Indebtedness  (other than Indebtedness  hereunder),  beyond any period of
grace provided with respect thereto,  which  individually or together with other
such  Indebtedness  as to  which  any  such  failure  exists  has  an  aggregate
outstanding principal amount in excess of $10,000,000;  or if any Borrower fails
to perform or observe any other term,  covenant or  agreement  contained  in any
agreement,  document or instrument evidencing or securing any such Indebtedness,
or under which any such Indebtedness was issued or created, beyond any period of
grace,  if any,  provided with respect  thereto if the effect of such failure is


CREDIT AGREEMENT                                                      Page 29





either (i) to cause, or permit the holders of such Indebtedness (or a trustee on
behalf of such holders) to cause, any payment in respect of such Indebtedness to
become  due  prior  to its  due  date  or (ii) to  permit  the  holders  of such
Indebtedness  (or a trustee on behalf of such holder) to elect a majority of the
board of directors of any Borrower; or

          (e) A judgment or order for the payment of money,  which together with
other such  judgments or orders  exceeds the  aggregate  amount of  $10,000,000,
shall be rendered  against any Borrower and either (i)  enforcement  proceedings
shall have been  commenced by any creditor  upon such judgment or order and such
judgment or order shall have remained  unsatisfied  and such  proceedings  shall
have remained unstayed for a period of 30 consecutive days, or (ii) for a period
of 30 consecutive  days, such judgment or order shall have remained  unsatisfied
and a stay of  enforcement  thereof,  by reason of pending  appeal or otherwise,
shall not have been in effect; or

          (f) The  occurrence  or existence  with respect to any Borrower or any
Guarantor  or any of their ERISA  Affiliates  of any of the  following:  (i) any
"prohibited  transaction" (as defined in Section 406 of ERISA or Section 4975 of
the Code) involving any Plan, (ii) any Reportable Event shall occur with respect
to any Plan, (iii) the filing under ERISA of a notice of intent to terminate any
Plan or the termination of any Plan, (iv) any event or circumstance exists which
might constitute grounds entitling the PBGC to institute proceedings under ERISA
for the termination of, or the appointment of a trustee to administer, any Plan,
or the  institution  of the PBGC of any such  proceedings,  or (v)  complete  or
partial   withdrawal   under   ERISA   from  any   Multiemployer   Plan  or  the
reorganization,  insolvency,  or termination of any  Multiemployer  Plan, and in
each of the foregoing  cases,  such event or condition,  together with all other
events or  conditions,  if any,  could in the  opinion of the Banks  subject any
Borrower  to any tax,  penalty,  or other  liability  to a Plan,  the  PBGC,  or
otherwise (or any combination thereof); or

          (g) Any Borrower shall generally not pay its debts as they become due,
or shall admit in writing its  inability  to pay its debts  generally,  or shall
make a general assignment for the benefit of creditors,  or shall institute,  or
there shall be instituted  against any Borrower,  any proceeding or case seeking
to  adjudicate  it a bankrupt or insolvent or seeking  liquidation,  winding up,
reorganization, arrangement, adjustment, protection, relief or composition of it
or its debts under any law relating to bankruptcy,  insolvency or reorganization
or relief or  protection  of debtors or seeking the entry of an order for relief
or the appointment of a receiver,  trustee,  custodian or other similar official
for it or for any substantial  part of its property,  and, if such proceeding is
instituted  against any Borrower and is being contested by such Borrower in good
faith by appropriate  proceedings,  such proceedings shall remain undismissed or
unstayed  for a period  of 30  days;  or any  Borrower  shall  take  any  action
(corporate or other) to authorize or further any of the actions  described above
in this subsection; or

          (h) Any event of default described in any Security Document shall have
occurred and be continuing,  or any material  provision of any Security Document
shall at any time for any reason  cease to be valid and binding and  enforceable
against  any  obligor   thereunder,   or  the   validity,   binding   effect  or
enforceability  thereof shall be contested or  repudiated by any Person,  or any
obligor,  shall  deny  that  it  has  any or  further  liability  or  obligation
thereunder,  or any Security  Document shall be  terminated,  invalidated or set
aside, or be declared  ineffective or inoperative or in any way cease to give or
provide to the Agent and the Banks the benefits purported to be created thereby;
or

          (i) (A) COG shall fail to be a  wholly-owned  Subsidiary  of CRI,  (B)
COGL  shall  fail to be a  wholly-owned  subsidiary  of COG or (C) the  Board of
Directors of CRI shall not consist of a majority of the Continuing  Directors of
CRI; or

          (j) Any Change in Control shall occur.

     8.2 Remedies.


CREDIT AGREEMENT                                                      Page 30





          (a) Upon the  occurrence  and during the  continuance  of any Event of
Default,  the Agent may, and upon being directed to do so by the Required Banks,
shall,  by notice to the  Borrowers  terminate  the  Commitments  or declare the
outstanding  principal  of,  and  accrued  interest  on, the Notes and all other
amounts due under this Agreement and all other Loan Documents, to be immediately
due and  payable,  or demand  immediate  delivery  of cash  collateral,  and the
Borrowers agree to deliver such cash  collateral upon such demand,  in an amount
equal to the maximum  amount that may be available to be drawn at any time prior
to the stated expiry of all outstanding  Letters of Credit, or all of the above,
whereupon the Commitments  shall terminate  forthwith and all such amounts shall
become  immediately due and payable,  or both, as the case may be, provided that
in the  case  of any  event  or  condition  described  in  Section  8.1(g),  the
Commitments shall  automatically  terminate forthwith and all such amounts shall
automatically  become  immediately due and payable without notice;  in each case
without demand,  presentment,  protest,  diligence,  notice of dishonor or other
formality, all of which are hereby expressly waived.

          (b) Upon the  occurrence  and during the  continuance of such Event of
Default,  the Agent may, and upon being directed to do so by the Required Banks,
shall,  in addition to the  remedies  provided  in Section  8.2(a),  enforce its
rights  either by suit in equity,  or by action at law, or by other  appropriate
proceedings,  whether for the specific  performance (to the extent  permitted by
law) of any  covenant or agreement  contained  in this  Agreement or in any then
outstanding Note or any Security Document or in aid of the exercise of any power
granted in this Agreement,  any then outstanding Notes or any Security Document,
and may enforce the payment of any then  outstanding  Notes and any of the other
rights of the Agent and the Banks in any other  agreement or available at law or
in equity.

          (c) Upon the  occurrence  and during the  continuance  of any Event of
Default  hereunder,  each  Bank may at any time and from  time to time,  without
notice to the Borrowers (any  requirement for such notice being expressly waived
by the  Borrowers)  set off and apply against any and all of the  obligations of
any Borrower now or hereafter existing under this Agreement, any of the Notes or
the  Security  Documents,  any and all  deposits  (general or  special,  time or
demand,  provisional  or final) at any time held and other  indebtedness  at any
time owing by such Bank to or for the credit or the account of any  Borrower and
any  property  of any  Borrower  from time to time in  possession  of such Bank,
irrespective of whether or not any Bank shall have made any demand hereunder and
although such  obligations  may be contingent and  unmatured.  The rights of the
Banks under this  Section  8.2(c) are in addition to other  rights and  remedies
(including,  without  limitation,  other  rights of setoff)  which the Banks may
have.

     8.3 Distribution of Proceeds. All proceeds of any realization on the
Collateral  received by the Agent  pursuant  to the  Security  Documents  or any
payments on any of the liabilities secured by the Security Documents received by
the Agent or any Bank upon and  during the  continuance  of any Event of Default
shall be allocated and distributed as follows:

          (a) First, to the payment of all costs and expenses, including without
limitation all attorneys'  fees, of the Agent in connection with the enforcement
of the Security Documents and otherwise administering this Agreement;

          (b) Second, to the payment of all costs,  expenses and fees, including
without  limitation,  commitment  fees and attorneys'  fees,  owing to the Banks
pursuant to the Bank Obligations on a pro rata basis in accordance with the Bank
Obligations  consisting of fees, costs and expenses owing to the Banks under the
Bank Obligations for application to payment of such liabilities;

          (c)  Third,  to the Banks on a pro rata basis in  accordance  with the
Bank  Obligations  consisting of interest and principal owing to the Banks under
the Bank  Obligations,  with any  obligations  owing to any Bank pursuant to any
Swap Agreement to which it is a party (whether pursuant to a termination thereof


CREDIT AGREEMENT                                                      Page 31





or otherwise) and with any reimbursement  obligations or other liabilities owing
to any Bank pursuant to any Letter of Credit, for application to payment of such
liabilities;

          (c) Fourth,  to the payment of any and all other  amounts owing to the
Banks  on a pro  rata  basis  in  accordance  with  the  total  amount  of  such
Indebtedness  owing to each of the  Banks,  for  application  to payment of such
liabilities; and

          (d) Fifth,  to the  Borrowers  or such other  Person as may be legally
entitled thereto.

     8.4  Letter  of  Credit  Liabilities.  For the  purposes  of  payments  and
distributions  under Section 8.3, the full amount of Bank Obligations on account
of any Letter of Credit then  outstanding  but not drawn upon shall be deemed to
be then due and owing. Amounts  distributable to the any of the Banks on account
of such Bank  Obligations  under such Letter of Credit  shall be  deposited in a
separate  interest  bearing  collateral  account  in the name of and  under  the
control of the Agent and held by the Agent first as security  for such Letter of
Credit Bank  Obligations and then as security for all other Bank Obligations and
the  amount  so  deposited  shall  be  applied  to the  Letter  of  Credit  Bank
Obligations  at such times and to the  extent  that such  Letter of Credit  Bank
Obligations become absolute liabilities. If and to the extent that the Letter of
Credit Bank Obligations fail to become absolute Bank Obligations  because of the
expiration or  termination  of the  underlying  Letters of Credit  without being
drawn upon, then such amounts shall be applied to the remaining Bank Obligations
in the order provided in Section 8.3. Each Borrower  hereby grants to the Agent,
for the  benefit of the Banks,  a lien and  security  interest in all such funds
deposited in such separate interest bearing collateral  account, as security for
all the Bank Obligations as set forth above. The Borrowers acknowledge and agree
that all  reimbursement  and other  obligations and liabilities  pursuant to any
Letters  of  Credit  issued by the Agent for the  account  of any  Borrower  are
secured by all Collateral and the Security Documents.


     SECTION 9. The Agent, the Documentation Agent and the Banks.

     9.1 Appointment; Nature of Relationship. The First National Bank of Chicago
is hereby  appointed  by the Banks as the Agent  hereunder  and under each other
Loan Document,  and each of the Banks irrevocably authorizes the Agent to act as
the contractual representative of such Bank with the rights and duties expressly
set forth  herein and in the other Loan  Documents.  The Agent  agrees to act as
such contractual  representative  upon the express conditions  contained in this
Section 9.  Notwithstanding the use of the defined term "Agent," it is expressly
understood   and   agreed   that  the  Agent   shall  not  have  any   fiduciary
responsibilities  to any Bank by reason  of this  Agreement  or any  other  Loan
Document and that the Agent is merely acting as the  representative of the Banks
with only those  duties as are  expressly  set forth in this  Agreement  and the
other Loan Documents. In its capacity as the Banks' contractual  representative,
the Agent (i) does not hereby assume any  fiduciary  duties to any of the Banks,
(ii) is a  "representative"  of the Banks within the meaning of Section 9-105 of
the Uniform  Commercial  Code and (iii) is acting as an independent  contractor,
the rights and duties of which are limited to those  expressly set forth in this
Agreement  and the other  Loan  Documents.  Each of the Banks  hereby  agrees to
assert no claim  against the Agent on any agency  theory or any other  theory of
liability  for breach of  fiduciary  duty,  all of which claims each Bank hereby
waives.

     9.2 Powers.  The Agent shall have and may  exercise  such powers  under the
Loan Documents as are  specifically  delegated to the Agent by the terms of each
thereof,  together with such powers as are reasonably  incidental  thereto.  The
Agent shall have no implied duties to the Banks,  or any obligation to the Banks
to take any action  thereunder  except any action  specifically  provided by the
Loan Documents to be taken by the Agent.


CREDIT AGREEMENT                                                      Page 32





     9.3 General Immunity. Neither the Agent nor any of its directors, officers,
agents or employees shall be liable to the Borrowers, any Borrower, the Banks or
any Bank for any action taken or omitted to be taken by it or them  hereunder or
under any other Loan Document or in connection  herewith or therewith except for
its or their own gross negligence or willful misconduct.

     9.4 No Responsibility for Loans,  Recitals,  etc. Neither the Agent nor any
of its directors, officers, agents or employees shall be responsible for or have
any duty to ascertain,  inquire into, or verify (i) any  statement,  warranty or
representation  made in  connection  with any  Loan  Document  or any  borrowing
hereunder;  (ii)  the  performance  or  observance  of any of the  covenants  or
agreements  of  any  obligor  under  any  Loan  Document,   including,   without
limitation,  any agreement by an obligor to furnish information directly to each
Bank;  (iii) the  satisfaction  of any  condition  specified  in Section  3.2 or
otherwise   hereunder;   (iv)  the  validity,   enforceability,   effectiveness,
sufficiency  or  genuineness  of any Loan  Document or any other  instrument  or
writing  furnished  in  connection  therewith;  or (v) the  value,  sufficiency,
creation, perfection or priority of any interest in any collateral security. The
Agent  shall  have no duty to  disclose  to the  Banks  information  that is not
required to be  furnished  by the  Borrowers  to the Agent at such time,  but is
voluntarily  furnished by the  Borrowers to the Agent (either in its capacity as
Agent or in its individual capacity).

     9.5 Action on Instructions of Banks.  The Agent shall in all cases be fully
protected in acting, or in refraining from acting, hereunder and under any other
Loan Document in  accordance  with written  instructions  signed by the Required
Banks,  and such  instructions  and any action  taken or failure to act pursuant
thereto  shall be binding on all of the Banks and on all  holders of Notes.  The
Banks  hereby  acknowledge  that  the  Agent  shall be under no duty to take any
discretionary  action  permitted to be taken by it pursuant to the provisions of
this  Agreement  or any other  Loan  Document  unless it shall be  requested  in
writing to do so by the Required  Banks.  The Agent shall be fully  justified in
failing  or  refusing  to take any  action  hereunder  and under any other  Loan
Document  unless it shall first be indemnified to its  satisfaction by the Banks
pro rata  against any and all  liability,  cost and expense that it may incur by
reason of taking or continuing to take any such action.

     9.6  Employment  of Agents and  Counsel.  The Agent may  execute any of its
duties  as Agent  hereunder  and under any other  Loan  Document  by or  through
employees,  agents,  and  attorneys-in-fact  and shall not be  answerable to the
Banks, except as to money or securities received by it or its authorized agents,
for the default or misconduct of any such agents or  attorneys-in-fact  selected
by it with  reasonable  care.  The Agent  shall be entitled to advice of counsel
concerning  all matters  pertaining to the agency hereby  created and its duties
hereunder and under any other Loan Document.

     9.7  Reliance on  Documents;  Counsel.  The Agent shall be entitled to rely
upon any  Note,  notice,  consent,  certificate,  affidavit,  letter,  telegram,
statement,  paper or  document  believed  by it to be genuine and correct and to
have been  signed or sent by the proper  Person or  Persons,  and, in respect to
legal matters,  upon the opinion of counsel selected by the Agent, which counsel
may be employees of the Agent.

     9.8 Agent's Reimbursement and Indemnification. The Banks agree to reimburse
and indemnify the Agent  ratably in proportion to their  respective  Commitments
(or, if the Commitments have been terminated, in proportion to their Commitments
immediately prior to such termination) (i) for any amounts not reimbursed by the
Borrowers  for which the Agent is entitled  to  reimbursement  by the  Borrowers
under the Loan Documents,  (ii) for any other expenses  incurred by the Agent on
behalf of the Banks, in connection with the  preparation,  execution,  delivery,
administration  and  enforcement  of  the  Loan  Documents  and  (iii)  for  any
liabilities, obligations, losses, damages, penalties, actions, judgments, suits,
costs,  expenses or disbursements of any kind and nature whatsoever which may be


CREDIT AGREEMENT                                                      Page 33





imposed on, incurred by or asserted  against the Agent in any way relating to or
arising out of the Loan Documents or any other document  delivered in connection
therewith or the transactions contemplated thereby, or the enforcement of any of
the terms thereof or of any such other documents, provided that no Bank shall be
liable  for any of the  foregoing  to the  extent  they  arise  from  the  gross
negligence or willful  misconduct  of the Agent.  The  obligations  of the Banks
under  this  Section  9.8 shall  survive  payment  of the Bank  Obligations  and
termination of this Agreement.

     9.9 Notice of Default.  The Agent shall not be deemed to have  knowledge or
notice of the occurrence of any Default or Event of Default hereunder unless the
Agent has received  written  notice from a Bank or a Borrower  referring to this
Agreement  describing  such  Default or Event of Default and  stating  that such
notice is a "notice of  default".  In the event that the Agent  receives  such a
notice, the Agent shall give prompt notice thereof to the Banks.

     9.10  Rights as a Bank.  In the event the Agent is a Bank,  the Agent shall
have the same rights and powers  hereunder  and under any other Loan Document as
any Bank and may exercise the same as though it were not the Agent, and the term
"Bank"  or  "Banks"  shall,  at any time when the  Agent is a Bank,  unless  the
context otherwise indicates,  include the Agent in its individual capacity.  The
Agent may accept deposits from, lend money to, and generally  engage in any kind
of trust, debt, equity or other  transaction,  in addition to those contemplated
by this Agreement or any other Loan Document,  with any Borrower or any of their
respective  Subsidiaries  in  which  any  Borrower  or  such  Subsidiary  is not
restricted  hereby  from  engaging  with any other  Person.  The  Agent,  in its
individual capacity, is not obligated to remain a Bank.

     9.11  Bank  Credit   Decision.   Each  Bank   acknowledges   that  it  has,
independently and without reliance upon the Agent or any other Bank and based on
the financial  statements prepared by the Borrowers and such other documents and
information  as it has  deemed  appropriate,  made its own credit  analysis  and
decision to enter into this  Agreement and the other Loan  Documents.  Each Bank
also  acknowledges  that it will,  independently  and without  reliance upon the
Agent or any other Bank and based on such documents and  information as it shall
deem  appropriate  at the time,  continue  to make its own credit  decisions  in
taking or not taking action under this Agreement and the other Loan Documents.

     9.12  Successor  Agent.  The Agent may resign at any time by giving written
notice thereof to the Banks and the Borrowers,  such resignation to be effective
upon the  appointment  of a successor  Agent or, if no successor  Agent has been
appointed,  forty-five  days  after  the  retiring  Agent  gives  notice  of its
intention to resign.  Upon any such  resignation,  the Required Banks shall have
the right to  appoint,  on behalf of the  Borrowers  and the Banks,  a successor
Agent.  If no successor Agent shall have been so appointed by the Required Banks
within thirty days after the resigning Agent's giving notice of its intention to
resign,  then the resigning Agent may appoint,  on behalf of the Borrowers,  and
the Banks, a successor  Agent.  If the Agent has resigned and no successor Agent
has been appointed,  the Banks may perform all the duties of the Agent hereunder
and the Borrowers shall make all payments in respect of the Bank  Obligations to
the  applicable  Bank and for all other  purposes  shall deal  directly with the
Banks. No successor  Agent shall be deemed to be appointed  hereunder until such
successor Agent has accepted the appointment.  Any such successor Agent shall be
a commercial bank having capital and retained earnings of at least  $50,000,000.
Upon the acceptance of any appointment as Agent hereunder by a successor  Agent,
such successor Agent shall  thereupon  succeed to and become vested with all the
rights,  powers,  privileges  and  duties  of  the  resigning  Agent.  Upon  the
effectiveness  of the  resignation  of the Agent,  the resigning  Agent shall be
discharged  from  its  duties  and  obligations  hereunder  and  under  the Loan
Documents.  After  the  effectiveness  of  the  resignation  of  an  Agent,  the
provisions  of this  Section 9 shall  continue in effect for the benefit of such
Agent in respect of any actions  taken or omitted to be taken by it while it was
acting as the Agent hereunder and under the other Loan Documents.


CREDIT AGREEMENT                                                      Page 34





     9.13 Pro Rata  Sharing by Banks.  Each Bank  agrees  with every  other Bank
that,  in the event that it shall  receive  and retain any payment on account of
the  Borrower's  obligations  under this  Agreement,  the Notes or the  Security
Documents in a greater  proportion than that received by any other Bank, whether
such payment be voluntary, involuntary or by operation of law, by application of
set-off of any indebtedness or otherwise, then such Bank shall promptly purchase
a participation interest from the other Banks, without recourse, for cash and at
face value,  ratably in  accordance  with its Pro Rata Share,  in such an amount
that each Bank shall have  received  payment in respect of such  obligations  in
accordance with its Pro Rata Share; provided,  that if any such purchase be made
by any Bank and if any such excess payment  relating thereto or any part thereof
is thereafter  recovered from such Bank,  appropriate  adjustment in the related
purchase from the other Banks shall be made by rescission and restoration of the
purchase  price as to the portion of such  excess  payment so  recovered.  It is
further  agreed that,  to the extent there is then owing by the Borrowers to any
Bank indebtedness other than that evidenced by this Agreement, the Notes and the
Security  Documents  to which such Bank may apply any  involuntary  payments  of
indebtedness by the Borrowers, including those resulting from exercise of rights
of  set-off  or  similar  rights,  such Bank  shall  apply all such  involuntary
payments first to obligations of the Borrowers to the Banks  hereunder and under
the Notes and the Security Documents and then to such other indebtedness owed to
it by the Borrowers. In addition, it is further agreed that any and all proceeds
resulting  from a sale or  other  disposition  of any  collateral  which  may be
hereafter  granted for the benefit of the Banks to secure the obligations of the
Borrowers  hereunder,  shall be applied first to obligations of the Borrowers to
the Banks  hereunder  and under the Notes and the Security  Documents,  and then
ratably to any other  indebtedness  owed by the  Borrowers to the Banks which is
secured by such collateral.

     9.14  Determination  of Borrowing  Base,  Etc. Any  redetermination  of the
Borrowing Base shall be made mutually by the Agent and the  Documentation  Agent
and  submitted  to the  Banks.  The  redetermined  Borrowing  Base shall then be
effective  when  approved  by  the  Required   Banks,   provided  that  if  such
redetermined Borrowing Base is not approved by the Required Banks within 10 days
after it is submitted to the Banks,  each Bank shall submit to the Agent,  on or
within 10 days after the Agent  notifies the Banks that the Required  Banks have
not  approved  such  redetermined  Borrowing  Base,  its  determination  of  the
Borrowing  Base,  and the  redetermined  Borrowing  Base  will be  based  on the
weighted average of the redetermined  Borrowing Base of each Bank which properly
submits such  redetermination  to the Agent,  weighted  according to each Bank's
Commitment.  The  Borrowing  Base  may be  redetermined  from  time  to  time as
requested by the Required Banks,  and will be  redetermined  upon the request of
the Borrowers  (provided that the Borrowers cannot request a redetermination  of
the  Borrowing  Base more  than  once  between  the  mandatory  redeterminations
hereinafter  provided  for),  and,  in  addition,  at least  twice  each year as
follows:  upon receipt of the reserve reports referred to in Section 7.1(d)(vii)
hereof  (and in  connection  with such  twice per year  redeterminations  of the
Borrowing  Base,  the  Agent  and  the  Documentation  Agent  shall  submit  the
redetermined Borrowing Base as required under the first sentence of this Section
9.14 on or  prior to 30 days  after  the  receipt  of each  (a)  reserve  report
referred to in Section 7.1(d)(vii) (A) hereof and (b) reserve report referred to
in Section  7.1(d)(vii)(B).  Except for the  scheduled  redeterminations  of the
Borrowing  Base, each Bank  requesting a  redetermination  of the Borrowing Base
agrees to give notice to the Agent, the Documentation Agent and the Borrowers of
such request.  All parties hereto  acknowledge that as of the Effective Date the
Borrowing  Base is equal  to  $275,000,000;  provided  that  the  Borrowing  (i)
$10,000,000  when the  Borrowers  complete  (as  determined  by the  Agent)  the
acquisition  of the  Purchased  Bois D'Arc  Assets to be sold by  Richard  Price
pursuant to the Purchase Documents,  (ii) $2,000,000 when the Borrowers complete
(as determined by the Agent) the  acquisition of the Purchased Bois D'Arc Assets
to be sold by Sage Oil,  Inc.  pursuant  to the  Purchase  Documents,  and (iii)
$3,000,000  when  the  Borrowers  complete  (as  determined  by the  Agent)  the
acquisition of the Purchased Bois D'Arc Assets to be sold by Metrow Energy,  LLC
pursuant to the Purchase Documents.


CREDIT AGREEMENT                                                      Page 35





     9.15  Documentation  Agent.  Other than as specified in Section 9.14,  Bank
One, Texas,  N.A., as  Documentation  Agent  hereunder,  shall have no duties or
liabilities.

     SECTION 10. Miscellaneous.

     10.1  Amendments;  Etc. (a) This Agreement and any term or provision hereof
may be amended, waived or terminated by an instrument in writing executed by the
Borrowers and the Required Banks,  and (i) to the extent any rights or duties of
the Agent may be affected thereby,  the Agent, and (ii) to the extent any of the
rights  or duties  of the  Documentation  Agent  may be  affected  thereby,  the
Documentation Agent, provided, that,  notwithstanding anything in this Agreement
to the contrary,  except by an  instrument in writing  executed by the Borrowers
and all of the Banks, no such amendment,  waiver or termination  shall authorize
or permit the  extension of the time or times of payment of the principal of, or
interest on, the Notes or the reduction in principal  amount thereof or the rate
of interest thereon,  or any fees payable  hereunder,  or increase or extend the
respective  Commitments  of any Bank,  or release any  Borrower  from any of its
obligations  hereunder or under any other Loan Document, or release any material
amount of the Collateral from the Liens granted pursuant  hereto,  or amend this
Section 10.1.

          (b) Any such amendment,  waiver or termination shall be effective only
in the specific instance and for the specific purpose for which given.

          (c) Notwithstanding anything herein to the contrary, any Bank that has
failed to fund any  Advance or other  amount  required to be funded by such Bank
hereunder  shall not be entitled to vote  (whether to consent or to withhold its
consent) with respect to any amendment,  modification,  termination or waiver of
any  provision of any Loan  Document or a departure  therefrom or any  direction
from the Banks to the Agent and, for purposes of determining the Required Banks,
the Commitments and Advances of such Bank shall be disregarded.

     10.2 Notices.  (a) Except as otherwise  provided in Section 10.2(c) hereof,
all notices,  requests,  consents and other communications hereunder shall be in
writing and shall be delivered or sent to the Borrowers, the Banks and the Agent
at the respective addresses for notices set forth on the signature pages hereof,
or to such other address as may be designated by the Borrowers, the Agent or any
Bank by notice to the other parties hereto.  All notices shall be deemed to have
been given at the time of actual delivery thereof to such address, or if sent by
the Agent or any Bank to the Borrowers by certified or registered mail,  postage
prepaid, to such address, on the fifth day after the date of mailing.

          (b) Notices by the Borrowers to the Agent with respect to requests for
Advances  pursuant to Section 3.1 and notices of prepayment  pursuant to Section
4.1(c) shall be irrevocable and binding on the Borrowers.

          (c) Any notice to be given by the  Borrowers to the Agent  pursuant to
Section  4.1(c) or  Section  3.1 and any  notice to be given by the Agent or any
Bank hereunder, may be given by telephone, by telex or by facsimile transmission
and must be immediately  confirmed in writing in the manner  provided in Section
10.2(a).  Any such notice given by  telephone,  telex or facsimile  transmission
shall be deemed  effective upon receipt thereof by the party to whom such notice
is given.

     10.3 Conduct No Waiver;  Remedies  Cumulative.  No course of dealing on the
part of the  Agent or the  Banks,  nor any delay or  failure  on the part of the
Agent or any Bank in exercising any right,  power or privilege  hereunder  shall
operate as a waiver of such right, power or privilege or otherwise prejudice the
Agent's or the Banks'  rights and  remedies  hereunder;  nor shall any single or


CREDIT AGREEMENT                                                      Page 36





partial  exercise  thereof preclude any further exercise thereof or the exercise
of any other right,  power or privilege.  No right or remedy  conferred  upon or
reserved  to the Agent or the Banks  under  this  Agreement  is  intended  to be
exclusive  of any other  right or remedy,  and every  right and remedy  shall be
cumulative and in addition to every other right or remedy given hereunder or now
or hereafter  existing under any applicable law. Every right and remedy given by
this  Agreement or by applicable  law to the Agent or the Banks may be exercised
from time to time and as often as may be deemed expedient by them.

     10.4 Reliance on and Survival of Various Provisions.  All terms, covenants,
agreements,  representations  and  warranties of the Borrowers made herein or in
any certificate or other document  delivered  pursuant hereto shall be deemed to
be  material  and to have been  relied  upon by the Banks,  notwithstanding  any
investigation  heretofore or hereafter made by any Bank or on any Bank's behalf,
and those  covenants  and  agreements of the Borrowers set forth in Section 10.5
hereof shall survive the repayment in full of the Advances and other obligations
of the Borrowers  hereunder and under Security  Documents and the termination of
the Commitments.

     10.5 Expenses; Indemnification. (a) The Borrowers agree to pay and save the
Agent  harmless  from  liability  for the  payment  of the  reasonable  fees and
expenses  of any  counsel  the  Agent  shall  employ,  in  connection  with  the
preparation,  execution  and  delivery  of this  Agreement,  the  Notes  and the
Security Documents and the consummation of the transactions  contemplated hereby
and in connection with any amendments,  waivers or consents and other matters in
connection therewith, and all reasonable costs and expenses of the Agent and the
Banks (including reasonable fees and expenses of counsel) in connection with any
enforcement of this Agreement, the Notes or the Security Documents.

          (b)  Each of the  Borrowers  hereby  indemnifies  and  agrees  to hold
harmless  the Banks and the Agent,  and their  respective  officers,  directors,
employees  and agents,  from and against  any and all claims,  damages,  losses,
liabilities,  costs or expenses of any kind or nature whatsoever which the Banks
or the Agent or any such Person may incur or which may be claimed against any of
them by reason of or in  connection  with any Letter of Credit,  and neither any
Bank nor the Agent or any of their respective officers, directors,  employees or
agents shall be liable or responsible  for: (i) the use which may be made of any
Letter of Credit or for any acts or omissions of any  beneficiary  in connection
therewith; (ii) the validity,  sufficiency or genuineness of documents or of any
endorsement thereon, even if such documents should in fact prove to be in any or
all respects invalid,  insufficient,  fraudulent or forged; (iii) payment by the
Agent to the  beneficiary  under any Letter of Credit  against  presentation  of
documents which do not comply with the terms of any Letter of Credit,  including
failure of any  documents to bear any  reference  or adequate  reference to such
Letter  of  Credit;  (iv)  any  error,   omission,   interruption  or  delay  in
transmission,   dispatch  or   delivery  of  any  message  or  advice,   however
transmitted,  in connection with any Letter of Credit; or (v) any other event or
circumstance  whatsoever  arising  in  connection  with any  Letter  of  Credit;
provided,  however,  that the  Borrowers  shall not be required to indemnify the
Agent and such other Persons,  and the Agent shall be liable to the Borrowers to
the extent,  but only to the extent,  of any direct, as opposed to consequential
or  incidental,  damages  suffered by any Borrower  which were caused by (A) the
Agent's  wrongful  dishonor of any Letter of Credit after the presentation to it
by the  beneficiary  thereunder of a draft or other demand for payment and other
documentation strictly complying with the terms and conditions of such Letter of
Credent to the  beneficiary  under any Letter of Credit against  presentation of
documents  which do not  comply  with the  terms of the  Letter of Credit to the
extent, but only to the extent,  that such payment  constitutes gross negligence
or wilful  misconduct of the Agent.  It is understood that in making any payment
under a Letter of Credit the Agent will rely on documents  presented to it under
such  Letter of  Credit as to any and all  matters  set  forth  therein  without
further  investigation  and  regardless  of any  notice  or  information  to the
contrary,  and such reliance and payment  against  documents  presented  under a
Letter of Credit  substantially  complying  with the terms  thereof shall not be
deemed gross  negligence or wilful  misconduct  of the Agent in connection  with


CREDIT AGREEMENT                                                      Page 37





such  payment.  It is further  acknowledged  and agreed that a Borrower may have
rights against the beneficiary or others in connection with any Letter of Credit
with  respect  to which the  Agent is  alleged  to be  liable  and it shall be a
precondition  of the  assertion of any liability of the Agent under this Section
that such Borrower shall first have taken  reasonable  steps to enforce remedies
in respect of the alleged loss against such  beneficiary  and any other  parties
obligated  or liable in  connection  with such  Letter of Credit and any related
transactions.

          (c) In  consideration  of the execution and delivery of this Agreement
by  each  Bank  and the  extension  of the  Commitments,  the  Borrowers  hereby
indemnify,  exonerate and hold the Agent, each Bank and each of their respective
officers,  directors,  employees  and  agents  (collectively,  the  "Indemnified
Parties")  free and  harmless  from and against any and all  actions,  causes of
action, suits, losses, costs,  liabilities and damages, and expenses incurred in
connection  therewith  (irrespective of whether any such Indemnified  Party is a
party to the action for which  indemnification  hereunder is sought),  including
reasonable  attorneys' fees and  disbursements  (collectively,  the "Indemnified
Liabilities"),  incurred by the  Indemnified  Parties or any of them as a result
of, or arising out of, or relating to:

               (i) any  transaction  financed  or to be  financed in whole or in
part, directly or indirectly, with the proceeds of any Advance;

               (ii) the entering into and  performance of this Agreement and any
other  agreement or  instrument  executed in  connection  herewith by any of the
Indemnified  Parties  (including  any  action  brought  by or on  behalf  of the
Borrowers as the result of any  determination  by the Required Banks not to fund
any Advance in compliance with this Agreement);

               (iii) any investigation,  litigation or proceeding related to any
acquisition   or  proposed   acquisition  by  the  Borrowers  or  any  of  their
Subsidiaries of any portion of the stock or assets of any Person, whether or not
the Agent or such Bank is party thereto;

               (iv) any  investigation,  litigation or proceeding related to any
environmental cleanup, audit, compliance or other matter relating to any release
by the Borrowers or any of their  Subsidiaries of any hazardous  material or any
violations of Environmental Laws; or

               (v) the presence on or under,  or the escape,  seepage,  leakage,
spillage, discharge,  emission,  discharging or releases from, any real property
owned or operated by the  Borrowers or any  Subsidiary  thereof of any Hazardous
Material (including any losses, liabilities,  damages, injuries, costs, expenses
or claims  asserted  or arising  under any  Environmental  Law),  regardless  of
whether  caused by, or within the control of, the Borrowers or such  Subsidiary,
except  for any  such  Indemnified  Liabilities  arising  for the  account  of a
particular  Indemnified  Party by reason of the  activities  of the  Indemnified
Party on the property of the Borrowers conducted  subsequent to a foreclosure on
such  property  by the Banks or by reason of the  relevant  Indemnified  Party's
gross negligence or wilful misconduct or breach of this Agreement, and if and to
the extent that the foregoing  undertaking may be unenforceable  for any reason,
the Borrowers  hereby agree to make the maximum  contribution to the payment and
satisfaction of each of the Indemnified  Liabilities  which is permissible under
applicable  law. The Borrowers  shall be obligated to indemnify the  Indemnified
Parties for all Indemnified Liabilities subject to and pursuant to the foregoing
provisions, regardless of whether the Borrowers or any of their Subsidiaries had
knowledge  of the  facts  and  circumstances  giving  rise to  such  Indemnified
Liability.

     10.6  Successors and Assigns.  (a) This Agreement shall be binding upon and
inure to the benefit of the parties hereto and their  respective  successors and
assigns,  provided that the Borrowers may not,  without the prior consent of the
Banks,  assign their rights or obligations  hereunder or under the Notes and the
Banks shall not be obligated  to make any Advance  hereunder to any entity other
than the Borrowers.


CREDIT AGREEMENT                                                      Page 38





          (b) Any  Bank  may  sell a  participation  interest  to any  financial
institution or institutions,  and such financial institution or institutions may
further sell, a participation  interest  (undivided or divided) in, the Advances
and such Bank's  rights and  benefits  under this  Agreement,  the Notes and the
Security Documents and to the extent of that participation,  such participant or
participants shall have the same rights and benefits against the Borrowers under
Section 6.2(c) as it or they would have had if participation of such participant
or  participants  were the Bank making the Advances to the Borrowers  hereunder,
provided,  however,  that (i) such Bank's obligations under this Agreement shall
remain  unmodified and fully effective and  enforceable  against such Bank, (ii)
such Bank shall remain solely  responsible  to the other parties  hereto for the
performance of such obligations,  (iii) such Bank shall remain the holder of its
Note for all purposes of this Agreement,  (iv) the Borrowers,  the Agent and the
other  Banks  shall  continue  to deal  solely  and  directly  with such Bank in
connection with such Bank's rights and obligations under this Agreement, and (v)
such Bank shall not grant to its  participant  any rights to consent or withhold
consent to any action taken by such Bank or the Agent under this Agreement other
than action requiring the consent of all of the Banks hereunder.  The Agent from
time to time in its sole  discretion  may  appoint  agents  for the  purpose  of
servicing and  administering  this Agreement and the  transactions  contemplated
hereby and enforcing or exercising  any rights or remedies of the Agent provided
under this Agreement,  the Notes,  or otherwise.  In furtherance of such agency,
the Agent may from  time to time  direct  that the  Borrowers  provide  notices,
reports  and other  documents  contemplated  by this  Agreement  (or  duplicates
thereof) to such agent.  The Borrowers hereby consent to the appointment of such
agent and agree to provide all such notices,  reports and other documents and to
otherwise  deal with such agent acting on behalf of the Agent in the same manner
as would be required if dealing with the Agent itself.

          (c) Each Bank may,  with the prior  consent  of the  Borrowers  (which
consent  shall not be  unreasonably  withheld  and may not be withheld  upon the
occurrence and during the continuance of any Event of Default which is not cured
or waived within 30 days after the  occurrence of such Event of Default) and the
Agent,  assign to one or more  banks or other  entities  all or a portion of its
rights and obligations under this Agreement (including,  without limitation, all
or a portion of its  Commitment,  the Advances owing to it and the Note or Notes
and the Security  Documents held by it); provided,  however,  that (i) each such
assignment  shall be of a uniform,  and not a varying,  percentage of all rights
and  obligations,  (ii) except in the case of an  assignment  of all of a Bank's
rights and obligations under this Agreement, (A) the amount of the Commitment of
the assigning Bank being assigned  pursuant to each such assignment  (determined
as of the date of the Assignment and Acceptance with respect to such assignment)
shall  in no  event  be less  than  $5,000,000,  and in  integral  multiples  of
$1,000,000 thereafter,  or such lesser amount as the Borrowers and the Agent may
consent to and (B) after giving  effect to each such  assignment,  the amount of
the Commitment of the assigning Bank shall in no event be less than  $5,000,000,
and (iii) the parties to each such  assignment  shall execute and deliver to the
Agent,  for its  acceptance  and  recording in the Register,  an Assignment  and
Acceptance  in the form of Exhibit D hereto (an  "Assignment  and  Acceptance"),
together with any Note or Notes subject to such  assignment and a processing and
recordation  fee of  $3,500.  Upon  such  execution,  delivery,  acceptance  and
recording,  from and after the effective date  specified in such  Assignment and
Acceptance,  (x) the  assignee  thereunder  shall be a party  hereto and, to the
extent that rights and  obligations  hereunder have been assigned to it pursuant
to such  Assignment and  Acceptance,  have the rights and  obligations of a Bank
hereunder and (y) the Bank assignor  thereunder shall, to the extent that rights
and  obligations  hereunder have been assigned by it pursuant to such Assignment
and Acceptance, relinquish its rights and be released from its obligations under
this Agreement (and, in the case of an Assignment and Acceptance covering all of
the remaining  portion of an assigning Bank's rights and obligations  under this
Agreement, such Bank shall cease to be a party hereto).

          (d) By executing and delivering an Assignment and Acceptance, the Bank
assignor  thereunder and the assignee  thereunder confirm to and agree with each


CREDIT AGREEMENT                                                      Page 39





          other  and the other  parties  hereto as  follows:  (i) other  than as
provided  in such  Assignment  and  Acceptance,  such  assigning  Bank  makes no
representation  or warranty  and assumes no  responsibility  with respect to any
statements,  warranties or  representations  made in or in connection  with this
Agreement or the execution,  legality,  validity,  enforceability,  genuineness,
sufficiency  or value of this  Agreement  or any other  instrument  or  document
furnished  pursuant hereto;  (ii) such assigning Bank makes no representation or
warranty and assumes no responsibility  with respect to the financial  condition
of the  Borrowers or the  performance  or  observance by the Borrowers of any of
their  obligations  under this  Agreement  or any other  instrument  or document
furnished  pursuant hereto;  (iii) such assignee confirms that it has received a
copy of  this  Agreement,  together  with  copies  of the  financial  statements
referred to in Section 6.7 and such other  documents and  information  as it has
deemed  appropriate  to make its own credit  analysis and decision to enter into
such  Assignment  and  Acceptance;  (iv) such assignee will,  independently  and
without  reliance on the Agent,  such assigning Bank or any other Bank and based
on such  documents and  information  as it shall deem  appropriate  at the time,
continue to make its own credit  decisions in taking or not taking  action under
this Agreement; (v) such assignee appoints and authorizes the Agent to take such
action as agent on its behalf and to exercise such powers and  discretion  under
this Agreement as are delegated to the Agent by the terms hereof,  together with
such powers and discretion as are reasonably  incidental thereto;  and (vi) such
assignee  agrees that it will perform in accordance  with their terms all of the
obligations  that by the terms of this Agreement are required to be performed by
it as a Bank.

          (e)  The  Agent  shall  maintain  at  its  address  designated  on the
signature pages hereof a copy of each Assignment and Acceptance delivered to and
accepted by it and a register for the  recordation of the names and addresses of
the Banks and the Commitment of, and principal  amount of the Advances owing to,
each Bank from time to time (the "Register").  The entries in the Register shall
be  conclusive  and binding for all purposes,  absent  manifest  error,  and the
Borrowers,  the Agent and the Banks may treat each Person whose name is recorded
in the  Register as a Bank  hereunder  for all purposes of this  Agreement.  The
Register  shall be available for  inspection by the Borrowers or any Bank at any
reasonable time and from time to time upon reasonable prior notice.

          (f) Upon its receipt of an Assignment  and  Acceptance  executed by an
assigning Bank and an assignee,  together with any Note or Notes subject to such
assignment,  the  Agent  shall,  if such  Assignment  and  Acceptance  has  been
completed,   (i)  accept  such  Assignment  and  Acceptance,   (ii)  record  the
information  contained  therein in the  Register  and (iii) give  prompt  notice
thereof to the  Borrowers.  Within five  Business Days after its receipt of such
notice,  the Borrowers,  at their own expense,  shall execute and deliver to the
Agent in exchange for the  surrendered  Note or Notes a new Note to the order of
such  assignee in an amount  equal to the  Commitment  assumed by it pursuant to
such  Assignment  and  Acceptance  and,  if the  assigning  Bank has  retained a
Commitment hereunder, a new Note to the order of the assigning Bank in an amount
equal to the Commitment  retained by it hereunder.  Such new Note or Notes shall
be in an aggregate  principal amount equal to the aggregate  principal amount of
such  surrendered  Note or  Notes,  shall be dated  the  effective  date of such
Assignment and Acceptance and shall  otherwise be in  substantially  the form of
Exhibit B hereto.

          (g) The Banks may, in connection with any assignment or  participation
or proposed assignment or participation  pursuant to this Section 10.6, disclose
to the  assignee  or  participant  or  proposed  assignee  or  participant,  any
information  relating to the Borrowers,  provided that such proposed assignee or
participant  has agreed to hold such  information  confidential  under the terms
described in Section 10.20.

          (h)  Notwithstanding any other provisions set forth in this Agreement,
any Bank may at any time create a security  interest  in, or assign,  all or any
portion of its rights under this Agreement (including,  without limitation,  the
Advances  owing to it and the Note or Notes held by it) in favor of any  Federal
Reserve Bank in  accordance  with  Regulation A of the Board of Governors of the


CREDIT AGREEMENT                                                      Page 40





Federal  Reserve System;  provided that such creation of a security  interest or
assignment  shall  not  release  such  Bank  from  its  obligations  under  this
Agreement.

     10.7  Subsidiaries  as  Borrowers.  In the  event  that CRI,  COG,  COGL or
Offshore shall create or acquire a Subsidiary,  such Subsidiary  shall execute a
joinder agreement in form and substance satisfactory to the Agent, together with
such  Security  Documents,  other  documents  and  opinions  as  the  Agent  may
reasonably require, and shall become a Borrower hereunder.

     10.8  CHOICE OF LAW.  THE LOAN  DOCUMENTS  (OTHER THAN THOSE  CONTAINING  A
CONTRARY  EXPRESS CHOICE OF LAW PROVISION) SHALL BE CONSTRUED IN ACCORDANCE WITH
THE INTERNAL LAWS (AND NOT THE LAW OF  CONFLICTS) OF THE STATE OF ILLINOIS,  BUT
GIVING EFFECT TO FEDERAL LAWS APPLICABLE TO NATIONAL BANKS.

     10.9 Table of Contents and Headings. The table of contents and the headings
of the various subdivisions hereof are for the convenience of reference only and
shall in no way modify any of the terms or provisions hereof.

     10.10  Construction  of  Certain  Provisions.   All  computations  required
hereunder  and all  financial  terms used herein  shall be made or  construed in
accordance  with GAAP unless such principles are  inconsistent  with the express
requirements of this Agreement. If any provision of this Agreement refers to any
action  to be taken by any  Person,  or which  such  Person is  prohibited  from
taking, such provision shall be applicable whether such action is taken directly
or  indirectly  by such  Person,  whether  or not  expressly  specified  in such
provision.

     10.11  Integration  and  Severability.  This Agreement  embodies the entire
agreement and understanding  between the Borrowers and the Banks, and supersedes
all prior agreements and understandings,  relating to the subject matter hereof.
In  case  any  one or  more  of the  obligations  of the  Borrowers  under  this
Agreement,  the Notes or any  Security  Documents  shall be invalid,  illegal or
unenforceable in any jurisdiction,  the validity, legality and enforceability of
the remaining  obligations of the Borrowers  shall not in any way be affected or
impaired thereby,  and such invalidity,  illegality or  unenforceability  in one
jurisdiction  shall not affect the validity,  legality or  enforceability of the
obligations  of the Borrowers  under this  Agreement,  the Notes or any Security
Documents in any other jurisdiction.

     10.12  Interest Rate  Limitation.  Notwithstanding  any  provisions of this
Agreement,  the Notes or any Security Documents, in no event shall the amount of
interest paid or agreed to be paid by the Borrowers exceed an amount computed at
the highest  rate of interest  permissible  under  applicable  law. If, from any
circumstances  whatsoever,  fulfillment of any provision of this Agreement,  the
Notes or any Security  Documents at the time performance of such provision shall
be due, shall involve exceeding the interest rate limitation  validly prescribed
by law which a court of competent jurisdiction may deem applicable hereto, then,
ipso  facto,  the  obligations  to be  fulfilled  shall be  reduced to an amount
computed at the highest rate of interest  permissible  under applicable law, and
if for any reason  whatsoever the Banks shall ever receive as interest an amount
which would be deemed  unlawful under such applicable law such interest shall be
automatically  applied to the payment of principal  of the Advances  outstanding
and other  obligations of the Borrowers  hereunder  (whether or not then due and
payable)  and not to the  payment  of  interest,  or  shall be  refunded  to the
Borrowers  if such  principal  has been  paid in full.  Anything  herein  to the
contrary notwithstanding,  the obligations of the Borrowers under this Agreement
shall be  subject to the  limitation  that  payments  of  interest  shall not be
required  to the extent that  receipt of any such  payment by the Banks would be
contrary to provisions  of law  applicable to the Banks which limits the maximum
rate of interest which may be charged or collected by the Banks.


CREDIT AGREEMENT                                                      Page 41





     10.13  Counterparts.  This  Agreement  may be  executed  in any  number  of
counterparts,  all of which taken  together  shall  constitute  one and the same
instrument  and any of the parties  hereto may execute this Agreement by signing
any such counterpart.

     10.14  Independence  of Covenants.  All covenants  hereunder shall be given
independent  effect so that if a particular action or condition is not permitted
by any such covenant, the fact that it would be permitted by an exception to, or
would be otherwise  within the limitations of, another  covenant shall not avoid
the  occurrence  of an Event of  Default  or any event or  condition  which with
notice or lapse of time, or both,  could become such an Event of Default if such
action is taken or such condition exists.

     10.15  Consent  to  Jurisdiction.   Notwithstanding  the  place  where  any
liability  originates  or  arises,  or is to be  repaid,  any  suit,  action  or
proceeding arising out of or relating to this Agreement, any Security Documents,
or the Notes may be  instituted  in any court of competent  jurisdiction  in the
State of Illinois,  each Borrower hereby  irrevocably waives any objection which
it may have or  hereafter  has to the  laying  of such  venue of any such  suit,
action or proceeding and any claim that any such suit,  action or proceeding has
been brought in an  inconvenient  forum,  and each Borrower  hereby  irrevocably
submits  its Person and  property to the  jurisdiction  of any such court in any
such suit, action or proceedings. Nothing in this Section 10.15 shall affect the
right of the Bank to bring  proceedings  against the  Borrowers  or any of their
property in the courts of any other court of competent jurisdiction.

     10.16 JURY TRIAL  WAIVER.  THE AGENT,  THE BANKS AND EACH  BORROWER,  AFTER
CONSULTING OR HAVING HAD THE  OPPORTUNITY  TO CONSULT WITH  COUNSEL,  KNOWINGLY,
VOLUNTARILY AND INTENTIONALLY WAIVE ANY RIGHT ANY OF THEM MAY HAVE TO A TRIAL BY
JURY IN ANY LITIGATION  BASED UPON OR ARISING OUT OF THIS AGREEMENT,  THE NOTES,
THE SECURITY  DOCUMENTS,  OR ANY RELATED  INSTRUMENT  OR AGREEMENT OR ANY OF THE
TRANSACTIONS CONTEMPLATED BY THIS AGREEMENT, THE NOTES OR THE SECURITY DOCUMENTS
OR ANY COURSE OF  CONDUCT,  DEALING,  STATEMENTS  (WHETHER  ORAL OR  WRITTEN) OR
ACTIONS OF ANY OF THEM. NEITHER THE AGENT, THE BANKS NOR ANY BORROWER SHALL SEEK
TO CONSOLIDATE,  BY  COUNTERCLAIM OR OTHERWISE,  ANY SUCH ACTION IN WHICH A JURY
TRIAL HAS BEEN WAIVED WITH ANY OTHER  ACTION IN WHICH A JURY TRIAL  CANNOT BE OR
HAS NOT BEEN WAIVED.  THESE PROVISIONS SHALL NOT BE DEEMED TO HAVE BEEN MODIFIED
IN ANY  RESPECT  OR  RELINQUISHED  BY  EITHER  THE  AGENT  AND THE  BANKS OR THE
BORROWERS EXCEPT BY A WRITTEN INSTRUMENT EXECUTED BY ALL OF THEM.

     10.17 Joint and Several Obligations;  Contribution Rights;  Savings Clause.
(a) Notwithstanding  anything to the contrary set forth herein or in any Note or
in any other Loan Document, the obligations of the Borrowers hereunder and under
the Notes and the other Loan Documents are joint and several.

          (b)  If  any  Borrower   makes  a  payment  in  respect  of  the  Bank
Obligations,  it shall have the rights of  contribution  set forth below against
the other Borrowers; provided that such Borrower shall not exercise its right of
contribution until all the Bank Obligations shall have been finally paid in full
in cash. If any Borrower makes a payment in respect of the Bank Obligations that
is smaller in proportion to its Payment Share (as hereinafter defined) than such
payments  made by the other  Borrowers are in proportion to the amounts of their
respective  Payment  Shares,  the Borrower making such  proportionately  smaller


CREDIT AGREEMENT                                                      Page 42





payment  shall,  when  permitted  by the  preceding  sentence,  pay to the other
Borrowers an amount such that the net  payments  made by the Borrower in respect
of the  Bank  Obligations  shall  be  shared  among  the  Borrowers  pro rata in
proportion to their  respective  Payment  Shares.  If any Borrower  receives any
payment that is greater in proportion  to the amount of its Payment  Shares than
the payments received by the other Borrowers are in proportion to the amounts of
their respective  Payment Shares,  the Borrower  receiving such  proportionately
greater payment shall, when permitted by the second preceding  sentence,  pay to
the other  Borrowers an amount such that the payments  received by the Borrowers
shall be shared among the Borrowers  pro rata in proportion to their  respective
Payment  Shares.  Notwithstanding  anything to the  contrary  contained  in this
paragraph or in this Agreement,  no liability or obligation of any Borrower that
shall  accrue  pursuant to this  paragraph  shall be paid nor shall it be deemed
owed  pursuant  to this  paragraph  until all of the Bank  Obligations  shall be
finally paid in full in cash.

     For purposes hereof,  the "Payment Share" of each Borrower shall be the sum
of (a) the aggregate proceeds of the Bank Obligations  received by such Borrower
plus (b) the product of (i) the aggregate Bank  Obligations  remaining unpaid on
the date such Bank Obligations become due and payable in full, whether by stated
maturity,  acceleration,  or otherwise (the "Determination Date") reduced by the
amount of such Bank Obligations  attributed to all or such Borrowers pursuant to
clause  (a)  above,  times  (ii) a  fraction,  the  numerator  of  which is such
Borrower's net worth on the effective  date of this Agreement  (determined as of
the end of the immediately  preceding fiscal reporting period of such Borrower),
and the denominator of which is the aggregate net worth of all Borrowers on such
effective date.

          (c) It is the  intent of each  Borrower,  the Agent and the Banks that
each Borrower's maximum Bank Obligations shall be in, but not in excess of:

               (i) in a case or proceeding commenced by or against such Borrower
under the  Bankruptcy  Code on or within  one year from the date on which any of
the Bank  Obligations are incurred,  the maximum amount that would not otherwise
cause the Bank  Obligations  (or any other  obligations  of such Borrower to the
Agent and the Banks) to be avoidable  or  unenforceable  against  such  Borrower
under  (A)  Section  548 of the  Bankruptcy  Code  or (B) any  state  fraudulent
transfer  or  fraudulent  conveyance  act or  statute  applied  in such  case or
proceeding by virtue of Section 544 of the Bankruptcy Code; or

               (ii)  in a  case  or  proceeding  commenced  by or  against  such
Borrower under the Bankruptcy Code subsequent to one year from the date on which
any of the Bank  Obligations  are  incurred,  the maximum  amount that would not
otherwise cause the Bank Obligations (or any other  obligations of such Borrower
to the Agent and the  Banks)  to be  avoidable  or  unenforceable  against  such
Borrower  under any state  fraudulent  transfer or fraudulent  conveyance act or
statute  applied in any such case or  proceeding by virtue of Section 544 of the
Bankruptcy Code; or

               (iii)  in a case  or  proceeding  commenced  by or  against  such
Borrower under any law,  statute or regulation  other than the  Bankruptcy  Code
(including,   without   limitation,   any  other   bankruptcy,   reorganization,
arrangement,  moratorium,  readjustment  of debt,  dissolution,  liquidation  or
similar debtor relief laws),  the maximum amount that would not otherwise  cause
the Bank Obligations (or any other obligations of such Borrower to the Agent and
the Banks) to be avoidable or  unenforceable  against such  Borrower  under such
law, statute or regulation including,  without limitation,  any state fraudulent
transfer or  fraudulent  conveyance  act or statute  applied in any such case or
proceeding.

     (d) The Borrowers  acknowledge  and agree that they have requested that the
Banks make credit  available to the Borrowers  with each  Borrower  expecting to
derive  benefit,  directly  and  indirectly,  from the Advances and other credit
extended by the Banks to the Borrowers.


CREDIT AGREEMENT                                                      Page 43





     10.18  Consents to Renewals,  Modifications  and Other  Actions and Events.
This  Agreement  and all of the  obligations  of the Borrowers  hereunder  shall
remain in full force and  effect  without  regard to and shall not be  released,
affected or impaired by: (a) any amendment,  assignment,  transfer, modification
of or addition or supplement to the Bank Obligations,  this Agreement,  any Note
or any other Loan Document; (b) any extension,  indulgence, increase in the Bank
Obligations  or other action or inaction in respect of any of the Loan Documents
or otherwise with respect to the Bank Obligations, or any acceptance of security
for, or guaranties  of, any of the Bank  Obligations or Loan  Documents,  or any
surrender,  release, exchange,  impairment or alteration of any such security or
guaranties  including  without  limitation  the  failing  to  perfect a security
interest  in any  such  security  or  abstaining  from  taking  advantage  or of
realizing  upon  any  guaranties  or upon  any  security  interest  in any  such
security;  (c) any default by any Borrower  under, or any lack of due execution,
invalidity or  unenforceability  of, or any irregularity or other defect in, any
of the Loan  Documents;  (d) any waiver by the Banks or any other  Person of any
required  performance  or otherwise of any condition  precedent or waiver of any
requirement  imposed by any of the Loan  Documents,  any guaranties or otherwise
with respect to the Bank  Obligations;  (e) any exercise or  non-exercise of any
right,  remedy,  power or privilege  in respect of this  Agreement or any of the
other Loan Documents;  (f) any sale, lease, transfer or other disposition of the
assets of any Borrower or any  consolidation  or merger of any Borrower  with or
into  any  other  Person,  corporation,  or  entity,  or any  transfer  or other
disposition  by any Borrower or any other holder of any shares of capital  stock
of any  Borrower;  (g) any  bankruptcy,  insolvency,  reorganization  or similar
proceedings involving or affecting any Borrower; (h) the release or discharge of
any Borrower from the performance or observance of any agreement, covenant, term
or condition  under any of the Bank  Obligations or contained in any of the Loan
Documents  by  operation  of law;  or (i) any other  cause  whether  similar  or
dissimilar  to the  foregoing  which,  in the absence of this  provision,  would
release, affect or impair the obligations,  covenants,  agreements and duties of
any Borrower hereunder,  including without limitation any act or omission by the
Agent,  or the Bank or any other any Person  which  increases  the scope of such
Borrower's risk; and in each case described in this paragraph whether or not any
Borrower shall have notice or knowledge of any of the  foregoing,  each of which
is specifically waived by each Borrower. Each Borrower warrants to the Agent and
the Banks that it has  adequate  means to obtain  from each other  Borrower on a
continuing  basis  information  concerning  the  financial  condition  and other
matters with respect to the Borrowers and that it is not relying on the Agent or
the Banks to provide such information either now or in the future.

     10.19 Waivers, Etc. Each Borrower unconditionally waives: (a) notice of any
of the matters  referred to in Section 10.18 above; (b) all notices which may be
required  by statute,  rule or law or  otherwise  to preserve  any rights of the
Agent or the Banks including,  without limitation,  presentment to and demand of
payment or performance  from the other  Borrowers and protect for non-payment or
dishonor;  (c) any right to the exercise by the Agent or the Banks of any right,
remedy, power or privilege in connection with any of the Loan Documents; (d) any
requirement  that the  Agent or the  Banks in the  event of any  default  by any
Borrower,  first make  demand  upon or seek to enforce  remedies  against,  such
Borrower or any other  Borrower  before  demanding  payment  under or seeking to
enforce this Agreement  against any other  Borrower;  (f) any right to notice of
the  disposition  of any security which the Agent or the Banks may hold from any
Borrower or otherwise and any right to object to the  commercial  reasonableness
of the  disposition  of any such  security;  and (g) all errors and omissions in
connection  with the  Agent's  or any Bank's  administration  of any of the Bank
Obligations,  any of the Loan  Documents,  or any other act or  omission  of the
Agent or any Bank which changes the scope of the  Borrower's  risk,  except as a
result of the gross  negligence or willful  misconduct of the Agent or any Bank.
The  obligations  of each  Borrower  hereunder  shall be  complete  and  binding
forthwith  upon the  execution  of this  Agreement  and subject to no  condition
whatsoever, precedent or otherwise, and notice of acceptance hereof or action in
reliance hereon shall not be required.


CREDIT AGREEMENT                                                      Page 44




     10.20 Confidentiality.  The Banks and the Agent shall hold all confidential
information  obtained  pursuant to the  requirements of this Agreement which has
been  identified  as such by any  Borrower in  accordance  with their  customary
procedures  for  handling  confidential   information  of  this  nature  and  in
accordance  with  safe and  sound  banking  practices  and in any event may make
disclosure to its examiners,  affiliates,  outside  auditors,  counsel and other
professional  advisors  in  connection  with  this  Agreement  or as  reasonably
required by any bona fide  transferee  or  participant  in  connection  with the
contemplated  transfer  of any Note or  participation  therein or as required or
requested by any governmental  agency or  representative  thereof or pursuant to
legal process.  Without limiting the foregoing,  it is expressly understood that
such confidential  information shall not include  information which, at the time
of disclosure is in the public domain or, which after  disclosure,  becomes part
of the public  domain or  information  which any Bank or the Agent had  obtained
prior to the time of disclosure  and  identification  by any Borrower under this
Section  10.20,  or  information  received by any Bank or the Agent from a third
party. Nothing in this Section 10.20 or otherwise shall prohibit any Bank or the
Agent from  disclosing  any  confidential  information to the other Banks or the
Agent or render any of them liable in connection with any such disclosure.














CREDIT AGREEMENT                                                      Page 45




     IN WITNESS  WHEREOF,  the parties  hereto have caused this  Agreement to be
duly executed and delivered as of this 9th day of December, 1997, which shall be
the Effective Date of this Agreement.

Address for Notices:
                                         COMSTOCK RESOURCES, INC.

5005 LBJ Frwy., Suite 1000               By: /s/M. JAY ALLISON
Dallas, Texas  75244                     ------------------------------
Attention: M. Jay Allison                M. Jay Allison, its Chairman,
Telephone:  (972) 701-2000               President and Chief Executive Officer
Telecopy:   (972) 701-2111


Address for Notices
                                         COMSTOCK OIL & GAS, INC.

5005 LBJ Frwy., Suite 1000               By: /s/M. JAY ALLISON
Dallas, Texas  75244                     ------------------------------
Attention: M. Jay Allison                M. Jay Allison, its Chairman,
Telephone:  (972) 701-2000               President and Chief Executive Officer
Telecopy:   (972) 701-2111


Address for Notices

                                         COMSTOCK OIL & GAS, LOUISIANA, INC.

5005 LBJ Frwy., Suite 1000               By: /s/M. JAY ALLISON
Dallas, Texas  75244                     ------------------------------
Attention: M. Jay Allison                M. Jay Allison, its Chairman,
Telephone:  (972) 701-2000               President and Chief Executive Officer
Telecopy:   (972) 701-2111


Address for Notices
                                         COMSTOCK OFFSHORE, LLC

5005 LBJ Frwy., Suite 1000               By: /s/M. JAY ALLISON
Dallas, Texas  75244                     ------------------------------
Attention: M. Jay Allison                M. Jay Allison, its Chairman,
Telephone:  (972) 701-2000               President and Chief Executive Officer
Telecopy:   (972) 701-2111





CREDIT AGREEMENT                                                      Page 46




One First National Plaza                 THE FIRST NATIONAL BANK OFCHICAGO,
Suite 0362                               as a Bank and as Agent
Chicago, Illinois  60670
Attention: Carl Skoog                    By: /s/GEORGE SCHANZ
Telephone No: (312) 732-8011             -------------------------
Facsimile No: (312) 732-3055             Its: Vice President
Commitment Amount: $40,000,000
Pro Rata Share: 13.793103%



1717 Main Street                         BANK ONE, TEXAS, NA,
Dallas, Texas 75201                      as a Bank and as Documentation Agent
Attention: Mark Cranmer
Telephone No: (214) 290-2212             By:/s/WM. MARK CRAMER
Facsimile No: (214) 290-2627             ----------------------------
Commitment Amount: $40,000,000           Its: Vice President
Pro Rata Share: 13.793103%



1200 Smith Street, Ste. 3100             BANQUE PARIBAS
Houston, Texas  77002
Attention: Mike Fiuzat                   By:/s/MARIAN LIVINGSTON
Telephone No: (713) 659-4811             -----------------------------
Facsimile No: (713) 659-6915             Its: Group Vice President
Commitment Amount: $35,000,000
Pro Rata Share: 12.068966%
                                         By:/s/MIKE FIUZAT
                                         -----------------------------
                                         Its: Vice President


909 Fannin Street, Ste. 1700              TORONTO DOMINION (TEXAS), INC.
Houston, Texas  77010
Attention: Manager, Credit Administration By: /s/DARLENE RIEDER
Telephone No: (713) 653-8200              ------------------------------
Facsimile No: (713) 652-2647              Its: Vice President
Commitment Amount: $35,000,000
Pro Rata Share: 12.068966%


                                          ABN-AMRO BANK N.V.
Three Riverway, Suite 1770                By: ABN AMRO NORTH
Houston, Texas 77056                      AMERICA INC., as agent
Attention: Chuck Randall
Telephone No. (713) 953-9305              By: /s/BRIAN CHAPMAN
Facsimile No: (713) 629-7533              ------------------------------
Commitment Amount:  $25,000,000           Its: Group Vice President
Pro Rata Share: 8.620690%
                                          And: /s/GENE SHIELS
                                          ------------------------------
                                          Its: Vice President

100 Federal Street                        BANKBOSTON, N.A.
Boston, MA 02110
Attention: Allison Rossi                  By:/s//s/ALLISON ROSSI
Telephone No: (617) 434-4067              ------------------------------
Facsimile No: (617) 434-3652              Its: Director
Commitment Amount:  $25,000,000
Pro Rata Share: 8.620690%


CREDIT AGREEMENT                                                      47




11 West 42nd Street, 7th Floor           CHRISTIANIA BANK OG KREDITKASSE, ASA
New York, New York  10036
Attention: Steve Phillips                By: /s/WILLIAM S. PHILLIPS
Telephone No: (212) 827-4836             ------------------------------
Facsimile No: (212) 827-4888             Its: First Vice President
Commitment Amount: $25,000,000
Pro Rata Share: 8.620690%                By: /s/CARL-PETER SVENDSEN
                                         ------------------------------
                                         Its: First Vice President


1000 Louisiana Street, Ste. 5360         CREDIT LYONNAIS NEW YORK BRANCH
Houston, Texas  77002
Attention: Christine Smith Byerley       By:/s/CHRISTINE SMITH BYERLEY
Telephone No: (713) 751-0500             ------------------------------
Facsimile No: (713) 751-0307             Its: Senior Vice President
Commitment Amount: $25,000,000
Pro Rata Share: 8.620690%


Commitment Amount: $25,000,000           MEESPIERSON CAPITAL CORP.
Pro Rata Share:  8.620690%
                                         By:/s/KAREL LOUMAN
                                         ------------------------------
                                         Its: Vice President

                                         By:/s/DIERDRE SNVOR
                                         ------------------------------
                                         Its: Assistant Vice President

                                         Address for Operational Notices:
                                         MeesPierson Capital Corp.
                                         300 Crescent Court, Suite 1750
                                         Dallas, Texas  75201
                                         Yolanda Dittmar
                                         Telephone: (214) 754-0009
                                         Telefax:  (214) 754-5981

                                         ADDRESSES FOR OTHER NOTICES:
                                         MeesPierson Capital Corp.
                                         300 Crescent Court, Suite 1750
                                         Dallas, Texas  75201
                                         Attn: Karel Louman
                                         Telephone: (214) 754-0009
                                         Telefax:  (214) 754-5981


2121 San Jacinto, Ste. 1850              NATIONAL BANK OF CANADA
Dallas, Texas  75201
Attention: Doug Clark                    By: /s/LARRY L. SEARS
Telephone No: (214) 871-1265             -----------------------------
Facsimile No: (214) 871-2015             Its: Group Vice President
Commitment Amount: $15,000,000
Pro Rata Share: 5.172414%                By:/s/DOUG CLARK
                                         -----------------------------
                                         Its: Vice President

Lending Office for Floating Rate Loans
125 West 55th Street, 23rd Floor
New York, New York  10019
Facsimile No: (212) 632-8736

Lending Office for Eurodollar Loans
125 West 55th Street, 23rd Floor
New York, New York 10019
Facsimile No:  (212) 632-8736

CREDIT AGREEMENT                                                      Page 48