STONE ENERGY CORP
8-K, 1996-10-16
CRUDE PETROLEUM & NATURAL GAS
Previous: EQUITY INCOME FD BLUE CHIP STK SER 3 PREM AMERICAN PORT DAF, 485BPOS, 1996-10-16
Next: ROC COMMUNITIES INC, SC 13D/A, 1996-10-16



<PAGE>   1





                       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): October 16, 1996




                            STONE ENERGY CORPORATION
             (Exact name of registrant as specified in its charter)




DELAWARE                                 1-12074                      72-1235413
(State or other jurisdiction          (Commission               (I.R.S. Employer
of incorporation)                     File Number)        Identification Number)
                                                                             



                           625 E. KALISTE SALOOM ROAD
                           LAFAYETTE, LOUISIANA 70508
                    (Address of Principal Executive Offices)

      Registrant's telephone number, including area code:  (318) 237-0410


<PAGE>   2
ITEM 5.  OTHER EVENTS


         On October 16, 1996, Stone Energy Corporation (the "Company") 
announced its estimated proved oil and gas reserves as of August 31, 1996,
prepared in accordance with SEC guidelines. The following table sets forth
certain comparative summary information from the new estimates and the estimates
issued as of December 31, 1995.

<TABLE>
<CAPTION>

                                             August 31,             December 31,           Percentage
                                                1996                    1995                Increase
                                             ----------             ------------           ----------
<S>                                         <C>                     <C>                    <C>
Present value of estimated future
  pre-tax net cash flows at 10%
  annual discount ($MM)                        $263.5                  $179.7                  47%

Proved oil reserves (MMBbls)                     10.5                     8.0                  31%

Proved gas reserves (Bcf)                       128.9                    81.2                  59%

Total proved reserves in equivalent
  barrels (MMBOE)                                32.0                    21.5                  49%

Average oil price ($/Bbl)                      $21.95                  $19.40                  13%

Average gas price ($/Mcf)                       $2.43                   $2.39                   2%
</TABLE>

         The estimated proved reserves attributable to acquisitions closed in
August and September 1996, which were verified by an independent engineering
firm, are included in these amounts and comprise 27% of the total reserve
quantities as of August 31, 1996. During the first eight months of 1996, the
Company produced approximately 0.9 million barrels of oil and 7.9 billion cubic
feet of gas. Based on the new reserve estimates, the Company's reserve
replacement rate for this period was 570%.

         Separately, in September 1996 the Company amended its credit facility
with its bank group, which is led by NationsBank of Texas, N.A. The total
facility amount of $125 million is comprised of a three-year revolving credit
loan and a one-year term loan. Current availability of the facility is $105
million, and the current weighted average interest rate of the facility is 7.9%
per annum. As of September 30, 1996 the total outstanding principal balance was
$84.6 million and letters of credit totaling $6.6 million had been issued
pursuant to the facility.

         The revolver provides for total availability of $80 million with a
limitation on total outstanding borrowings based on a borrowing base amount
established by the banks for the Company's oil and gas properties, which
currently is $60 million. The term loan of $45 million was established to
finance the closing of the recent acquisitions and certain development costs
incurred during the third quarter of 1996. If the term loan is outstanding on
January 31, 1997, the banks have the right to redetermine the borrowing base of
the facility which could result in an acceleration of the payments due under
the term loan. The Company intends to pursue an underwritten public equity
offering during the fourth quarter of 1996 to retire the term loan and to
provide capital for the future development of its property base.

        A copy of the amended and restated credit agreement setting forth the
terms of the Company's credit facility has been filed as an exhibit hereto and
is incorporated herein by reference. The foregoing summary of the terms of the
Company's credit facility is qualified in its entirety by reference to such
agreement. 



                                      2
<PAGE>   3
     Certain of the information set forth above with respect to estimated
reserves and cash flows is forward-looking in nature. There are numerous
uncertainties inherent in estimating quantities of proved reserves and in
projecting future rates of production and the timing of development
expenditures, including many factors beyond the control of the producer. The
reserve data set forth herein represents only estimates. Reserve engineering is
a subjective process of estimating underground accumulations of oil and gas that
cannot be measured in an exact way, and the accuracy of any reserve estimate is
a function of the quality of available data and of engineering and geological
interpretation and judgment and the existence of development plans. As a result,
estimates of reserves made by different engineers for the same property will
often vary. Results of drilling, testing and production subsequent to the date
of an estimate may justify a revision of such estimates. Accordingly, reserve
estimates are generally different from the quantities of oil and gas that are
ultimately produced. Further, the estimated future net revenues from proved
reserves and the present value thereof are based upon certain assumptions,
including geological success, prices, future production levels and costs that
may not prove to be correct. Predictions about prices and future production
levels are subject to great uncertainty, and the meaningfulness of such
estimates depends on the accuracy of the assumptions upon which they are based.

Item 7. Financial Statements and Exhibits

        (c) Exhibits:

                99.1 -- Second Amended and Restated Credit Agreement among
                        Stone Energy Corporation, the financial institutions
                        named therein and NationsBank of Texas, N.A., as Agent,
                        dated as of September 26, 1996.


                                      3
<PAGE>   4

                                   SIGNATURES

         Pursuant to the requirements of the Securities and Exchange Act of
1934, the registrant has duly caused this Form 8-K to be signed on its behalf
by the undersigned thereunto duly authorized.


                                      STONE ENERGY CORPORATION
                                      
                                      
                                      
Date:    October 16, 1996             /s/ MICHAEL L. FINCH
                                      ------------------------------------------
                                      Michael L. Finch
                                      Executive Vice-President and
                                      Chief Financial Officer



                                      4
<PAGE>   5

                                EXHIBIT INDEX


          99.1 -- Second Amended and Restated Credit Agreement among
                  Stone Energy Corporation, the financial institutions
                  named therein and NationsBank of Texas, N.A., as Agent,
                  dated as of September 26, 1996.


          

<PAGE>   1





================================================================================





                                $125,000,000.00

                  SECOND AMENDED AND RESTATED CREDIT AGREEMENT

                                     Among

                            STONE ENERGY CORPORATION

                                  as Borrower,

                           THE FINANCIAL INSTITUTIONS
                         NAMED IN THIS CREDIT AGREEMENT

                                   as Banks,

                                      and

                           NATIONSBANK OF TEXAS, N.A.

                                    as Agent


                               September 26, 1996



================================================================================
<PAGE>   2
                               TABLE OF CONTENTS

<TABLE>
<CAPTION>
                                                                                                                     Page
<S>            <C>                                                                                                     <C>
                                                        ARTICLE I

                                             DEFINITIONS AND ACCOUNTING TERMS

Section 1.01.    Certain Defined Terms  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Section 1.02.    Computation of Time Periods  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  17
Section 1.03.    Accounting Terms; Changes in GAAP  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  17
Section 1.04.    Types of Advances  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  17
Section 1.05.    Miscellaneous  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  17

                                                        ARTICLE II

                                                    CREDIT FACILITIES
Section 2.01.    Commitment for Advances  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  17
Section 2.02.    Borrowing Base . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  19
Section 2.03.    Method of Borrowing  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  21
Section 2.04.    Prepayment of Advances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  23
Section 2.05.    Repayment of Advances  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  26
Section 2.06.    Letters of Credit  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  26
Section 2.07.    Fees . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  30
Section 2.08.    Interest . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  31
Section 2.09.    Payments and Computations  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  32
Section 2.10.    Sharing of Payments, Etc.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  33
Section 2.11.    Breakage Costs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  34
Section 2.12.    Increased Costs  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  34
Section 2.13.    Taxes  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  36

                                                       ARTICLE III

                                                  CONDITIONS OF LENDING

Section 3.01.    Conditions Precedent to Amendment and Restatement  . . . . . . . . . . . . . . . . . . . . . . . . .  38
Section 3.02.    Condition to Initial Term Advances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  39
</TABLE>





                                      -i-
<PAGE>   3
<TABLE>
<S>              <C>                                                                                                   <C>
Section 3.03.    Conditions Precedent to All Borrowings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  39

                                                        ARTICLE IV

                                              REPRESENTATIONS AND WARRANTIES

Section 4.01.    Corporate Existence; Subsidiaries  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  40
Section 4.02.    Corporate Power  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  41
Section 4.03.    Authorization and Approvals  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  41
Section 4.04.    Enforceable Obligations  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  41
Section 4.05.    Financial Statements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  41
Section 4.06.    True and Complete Disclosure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  42
Section 4.07.    Litigation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  42
Section 4.08.    Use of Proceeds  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  42
Section 4.09.    Investment Company Act . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  43
Section 4.10.    Public Utility Holding Company Act . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  43
Section 4.11.    Taxes  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  43
Section 4.12.    Pension Plans  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  43
Section 4.13.    Condition of Property; Casualties  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  44
Section 4.14.    No Burdensome Restrictions; No Defaults  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  44
Section 4.15.    Environmental Condition  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  45
Section 4.16.    Permits, Licenses, Etc.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  45
Section 4.17.    Gas Contracts  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  46

                                                        ARTICLE V

                                                  AFFIRMATIVE COVENANTS

Section 5.01.    Compliance with Laws, Etc. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  46
Section 5.02.    Maintenance of Insurance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  46
Section 5.03.    Preservation of Corporate Existence, Etc.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  47
Section 5.04.    Payment of Taxes, Etc. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  47
Section 5.05.    Visitation Rights  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  47
Section 5.06.    Reporting Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  48
Section 5.07.    Maintenance of Property  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  51
Section 5.08.    New Subsidiaries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  51
Section 5.09.    Collateral . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  51
Section 5.10.    Hedging Transactions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  52
</TABLE>





                                      -ii-
<PAGE>   4
<TABLE>
<S>              <C>                                                                                                   <C>
                                                        ARTICLE VI

                                                    NEGATIVE COVENANTS

Section 6.01.    Liens, Etc.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  52
Section 6.02.    Debts, Guaranties, and Other Obligations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  53
Section 6.03.    Agreements Restricting Liens and Distributions . . . . . . . . . . . . . . . . . . . . . . . . . . .  54
Section 6.04.    Merger or Consolidation; Asset Sales . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  54
Section 6.05.    Restricted Payments  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  55
Section 6.06.    Investments  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  55
Section 6.07.    Limitation on Speculative Hedging  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  55
Section 6.08.    Affiliate Transactions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  55
Section 6.09.    Compliance with ERISA  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  56
Section 6.10.    Maintenance of Ownership of Subsidiaries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  56
Section 6.11.    Sale-and-Leaseback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  56
Section 6.12.    Change of Business . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  56
Section 6.13.    Current Ratio  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  56
Section 6.14.    Tangible Net Worth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  57

                                                       ARTICLE VII

                                                         REMEDIES

Section 7.01.    Events of Default  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  57
Section 7.02.    Optional Acceleration of Maturity  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  60
Section 7.03.    Automatic Acceleration of Maturity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  60
Section 7.04.    Right of Set-off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  61
Section 7.05.    Actions Under Credit Documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  61
Section 7.06.    Non-exclusivity of Remedies  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  61

                                                       ARTICLE VIII

                                              THE AGENT AND THE ISSUING BANK

Section 8.01.    Authorization and Action . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  62
Section 8.02.    Agent's Reliance, Etc. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  62
Section 8.03.    The Agent and Its Affiliates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  63
Section 8.04.    Bank Credit Decision . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  63
</TABLE>





                                     -iii-
<PAGE>   5
<TABLE>
<S>              <C>                                  <C>                                                              <C>
Section 8.05.    Indemnification  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  63
Section 8.06.    Successor Agent and Issuing Bank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  64

                                                        ARTICLE IX

                                                      MISCELLANEOUS

Section 9.01.    Amendments, Etc. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  65
Section 9.02.    Notices, Etc.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  65
Section 9.03.    No Waiver; Remedies  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  65
Section 9.04.    Costs and Expenses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  66
Section 9.05.    Binding Effect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  66
Section 9.06.    Bank Assignments and Participations  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  66
Section 9.07.    Indemnification  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  68
Section 9.08.    Execution in Counterparts  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  69
Section 9.09.    Survival of Representations, Etc . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  69
Section 9.10.    Severability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  69
Section 9.11.    Business Loans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  69
Section 9.12.    Governing Law  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  70
</TABLE>

EXHIBITS:

<TABLE>
         <S>                      <C>      <C>
         Exhibit A                -        Form of Assignment and Acceptance
         Exhibit B                -        Form of Compliance Certificate
         Exhibit C                -        Form of Guaranty
         Exhibit D-1              -        Form of Revolving Note
         Exhibit D-2              -        Form of Term Note
         Exhibit E                -        Form of Notice of Borrowing
         Exhibit F                -        Form of Notice of Conversion or Continuation
         Exhibit G                -        Form of Letter of Credit Application
         Exhibit H-1              -        Form of Borrower's General Counsel Opinion
         Exhibit H-2              -        Form of Agent's Counsel Opinion
</TABLE>

SCHEDULES:

<TABLE>
         <S>                      <C>      <C>
         Schedule 1               -        Borrower, Agent, and Bank Information
         Schedule 4.01            -        Subsidiaries
         Schedule 4.07            -        Existing Litigation
         Schedule 4.15(a)         -        Existing Environmental Concerns
         Schedule 4.15(b)         -        Designated Environmental Sites
</TABLE>





                                      -iv-
<PAGE>   6
<TABLE>
         <S>                      <C>      <C>
         Schedule 6.01            -        Permitted Existing Liens
         Schedule 6.02            -        Permitted Existing Debt
         Schedule 6.08            -        Affiliated Transactions
</TABLE>





                                      -v-
<PAGE>   7
                  SECOND AMENDED AND RESTATED CREDIT AGREEMENT


         This Second Amended and Restated Credit Agreement dated as of
September 26, 1996 is among Stone Energy Corporation, a Delaware corporation,
the Banks (as defined below), and NationsBank of Texas, N.A., as Agent for the
Banks.

         The Borrower, the Banks, and the Agent agree as follows:


                                  INTRODUCTION


         A.      The Borrower, the Agent, and the Banks are parties to the
Amended and Restated Credit Agreement dated as of October 2, 1995 (as the same
has been amended, supplemented, or otherwise modified from time to time, the
"Existing Credit Agreement").

         B.      The Borrower, the Agent, and the Banks have agreed to amend
and restate the Existing Credit Agreement by entering into this Agreement.


                                   ARTICLE I

                        DEFINITIONS AND ACCOUNTING TERMS

         Section 1.01.    Certain Defined Terms.  As used in this Agreement,
the following terms shall have the following meanings (unless otherwise
indicated, such meanings to be equally applicable to both the singular and
plural forms of the terms defined):

         "Acceptable Security Interest" means a Lien which (a) exists in favor
of the Agent for the benefit of the Agent and the Banks and (b) is superior to
all Liens or rights of any other Person in the Property encumbered thereby,
except to the extent that the rights of another Person are permitted hereunder.

         "Adjusted Base Rate" means, for any day, the fluctuating rate per
annum of interest equal to the greater of (a) the Base Rate in effect on such
day and (b) the Federal Funds Rate in effect on such day plus 1.00%.

         "Advance" means any Revolving Advance or Term Advance.






<PAGE>   8
         "Affiliate" means, as to any Person, any other Person that, directly
or indirectly, through one or more intermediaries, controls, is controlled by,
or is under common control with, such Person or any Subsidiary of such Person.
The term "control" (including the terms "controlled by" or "under common
control with") means the possession, directly or indirectly, of the power to
direct or cause the direction of the management and policies of a Person,
whether through ownership of Voting Securities, by contract, or otherwise.

         "Agent" means NationsBank of Texas, N.A., in its capacity as an agent
pursuant to Article VIII and any successor agent pursuant to Section 8.06.

         "Agent's Fee Letter" has the meaning specified in Section 2.07(b).

         "Agreement" means this Second Amended and Restated Credit Agreement,
as the same may be amended, supplemented, and otherwise modified from time to
time.

         "Applicable Lending Office" means, with respect to each Bank, such
Bank's Domestic Lending Office in the case of a Base Rate Advance and such
Bank's Eurodollar Lending Office in the case of a Eurodollar Rate Advance.

         "Applicable Margin" means, for any day:

         (a)     so long as there is any principal amount outstanding under any
Term Advance, the following percentages during the following periods during
which such day falls:

<TABLE>
<CAPTION>
                                           Applicable Margin                 Applicable Margin
                                           Base Rate Advances                Eurodollar Rate Advances
                                           ------------------                ------------------------
<S>                                                <C>                               <C>
Through December 31, 1996                          0.00%                             2.00%
From January 1, 1997 through
    March 31, 1997                                 0.50%                             2.50%
From April 1, 1997 through
    June 30, 1997                                  1.00%                             3.00%
Thereafter                                         1.50%                             3.50%
</TABLE>

         (b)     after the outstanding principal amount of all Term Advances
has been repaid in full, the following percentages based upon the ratio of (i)
the aggregate outstanding amount of Revolving Advances plus the Letter of
Credit Exposure to (ii) the Borrowing Base, as of such day:





                                      -2-
<PAGE>   9
<TABLE>
<CAPTION>
         Ratio of Outstanding
         Revolving Advances to                              Applicable Margin                 Applicable Margin
         Borrowing Base                                     Base Rate Advances                Eurodollar Rate Advances
         --------------------------                         ------------------                ------------------------
                 <S>                                                <C>                               <C>
                 Less than .60                                      0.00%                             0.75%
                 Greater or equal to .60 and less than .80          0.00%                             1.00%
                 Greater or equal to .80                            0.00%                             1.25%
</TABLE>


         "Assignment and Acceptance" means an assignment and acceptance entered
into by a Bank and an Eligible Assignee, and accepted by the Agent, in
substantially the form of the attached Exhibit A.

         "Banks" means the lenders listed on the signature pages of this
Agreement and each Eligible Assignee that shall become a party to this
Agreement pursuant to Section 9.06.

         "Base Rate" means a fluctuating interest rate per annum as shall be in
effect from time to time equal to the rate of interest publicly announced by
NationsBank of Texas, N.A., as its base rate, whether or not the Borrower has
notice thereof.

         "Base Rate Advance" means an Advance which bears interest as provided
in Section 2.08(a).

         "Borrower" means Stone Energy Corporation, a Delaware corporation.

         "Borrowing" means any Revolving Borrowing or Term Borrowing.

         "Borrowing Base" means, for any date of its determination by the
Majority Banks in accordance with Section 2.02, the lending value of the
Borrower's and its Subsidiaries' Oil and Gas Properties as of such date.

         "Business Day" means a day of the year on which banks are not required
or authorized to close in Dallas, Texas and, if the applicable Business Day
relates to any Eurodollar Rate Advances, on which dealings are carried on by
banks in the London interbank market.

         "Capital Leases" means, as applied to any Person, any lease of any
Property by such Person as lessee which would, in accordance with GAAP, be
required to be classified and accounted for as a capital lease on the balance
sheet of such Person.

         "Cash Collateral Account" means a special interest bearing cash
collateral account pledged to the Agent for the ratable benefit of the Banks
containing cash deposited pursuant





                                      -3-
<PAGE>   10
to Sections 2.04(b), 7.02(b), or 7.03(b) to be maintained at the Agent's office
in accordance with Section 2.06(g) and bear interest or be invested in the
Agent's reasonable discretion.

         "CERCLA" means the Comprehensive Environmental Response, Compensation,
and Liability Act of 1980, as amended, state and local analogs, and all rules
and regulations and requirements thereunder in each case as now or hereafter in
effect.

         "Class" has the meaning set forth in Section 1.04.

         "Code" means the Internal Revenue Code of 1986, as amended, and any
successor statute.

         "Commitments" means, as to any Bank, its Revolving Commitment and its
Term Commitment.

         "Compliance Certificate" means a compliance certificate in the form of
the attached Exhibit B signed by a Responsible Officer of the Borrower.

         "Controlled Group" means all members of a controlled group of
corporations and all trades (whether or not incorporated) under common control
which, together with the Borrower, are treated as a single employer under
Section 414 of the Code.

         "Convert," "Conversion," and "Converted" each refers to a conversion
of Advances of one Type into Advances of another Type pursuant to Section
2.03(b).

         "Credit Documents" means this Agreement, the Notes, the Letter of
Credit Documents, the Guaranties, the Security Documents, and each other
agreement, instrument, or document executed at any time in connection with this
Agreement.

         "Debt," for any Person, means without duplication:

         (a)     indebtedness of such Person for borrowed money, including,
without limitation, obligations under letters of credit and agreements relating
to the issuance of letters of credit or acceptance financing;

         (b)     obligations of such Person evidenced by bonds, debentures,
notes or other similar instruments;

         (c)     obligations of such Person to pay the deferred purchase price
of property or services;





                                      -4-
<PAGE>   11
         (d)     obligations of such Person as lessee under Capital Leases;

         (e)     obligations of such Person under direct or indirect guaranties
in respect of, and obligations (contingent or otherwise) of such Person to
purchase or otherwise acquire, or otherwise to assure a creditor against loss
in respect of, indebtedness or obligations of others of the kinds referred to
in clauses (a) through (d) above;

         (f)     indebtedness or obligations of others of the kinds referred to
in clauses (a) through (e) secured by any Lien on or in respect of any Property
of such Person; and

         (g)     all liabilities of such Person in respect of unfunded vested
benefits under any Plan.

         "Default" means (a) an Event of Default or (b) any event or condition
which with notice or lapse of time or both would, unless cured or waived,
become an Event of Default.

         "Dollar Equivalent" means for all purposes of this Agreement, the
equivalent in another currency of an amount in Dollars to be determined by
reference to the rate of exchange quoted by NationsBank of Texas, N.A., at
10:00 a.m.  (Dallas, Texas, time) on the date of determination, for the spot
purchase in the foreign exchange market of such amount of Dollars with such
other currency.

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

         "Domestic Lending Office" means, with respect to any Bank, the office
of such Bank specified as its "Domestic Lending Office" opposite its name on
Schedule 1 or such other office of such Bank as such Bank may from time to time
specify to the Borrower and the Agent.

         "Effective Date" means the date on which each of the conditions
precedent in Section 3.01 have been met or waived.

         "Eligible Assignee" means any commercial bank organized under the laws
of any country which is a member of the Organization for Economic Cooperation
and Development and having primary capital (or its equivalent) of not less than
$250,000,000.00 (or its Dollar Equivalent) and approved by the Agent in its
sole discretion and the Borrower, which approval by the Borrower will not be
unreasonably withheld.

         "Environment"  or "Environmental" shall have the meanings set forth in
43 U.S.C. Section  9601(8) (1988).





                                      -5-
<PAGE>   12
         "Environmental Claim" means any third party (including governmental
agencies and employees) action, lawsuit, claim, demand, regulatory action or
proceeding, order, decree, consent agreement or notice of potential or actual
responsibility or violation (including claims or proceedings under the
Occupational Safety and Health Acts or similar laws or requirements relating to
health or safety of employees) which seeks to impose liability under any
Environmental Law.

         "Environmental Law" means all Legal Requirements arising from,
relating to, or in connection with the Environment, health, or safety,
including without limitation CERCLA, relating to (a) pollution, contamination,
injury, destruction, loss, protection, cleanup, reclamation or restoration of
the air, surface water, groundwater, land surface or subsurface strata, or
other natural resources; (b) solid, gaseous or liquid waste generation,
treatment, processing, recycling, reclamation, cleanup, storage, disposal or
transportation; (c) exposure to pollutants, contaminants, hazardous, or toxic
substances, materials or wastes; (d) the safety or health of employees; or (e)
the manufacture, processing, handling, transportation, distribution in
commerce, use, storage or disposal of hazardous, or toxic substances, materials
or wastes.

         "Environmental Permit" means any permit, license, order, approval or
other authorization under Environmental Law.

         "ERISA" means the Employee Retirement Income Security Act of 1974, as
amended from time to time.

         "Eurocurrency Liabilities" has the meaning assigned to that term in
Regulation D of the Federal Reserve Board (or any successor), as in effect from
time to time.

         "Eurodollar Lending Office" means, with respect to any Bank, the
office of such Bank specified as its "Eurodollar Lending Office" opposite its
name on Schedule 1 (or, if no such office is specified, its Domestic Lending
Office) or such other office of such Bank as such Bank may from time to time
specify to the Borrower and the Agent.

         "Eurodollar Rate"means, for the Interest Period for each Eurodollar
Rate Advance, the interest rate per annum (rounded upward to the nearest 1/100
of 1% per annum) appearing on Telerate Page 3750 (or any successor page) as the
London interbank offered rate for deposits in Dollars at approximately 11:00
a.m. (London time) two Business Days before the first day of such Interest
Period for a term comparable to such Interest Period.  If for any reason such
rate is not available, the term "Eurodollar Rate" shall mean, for the Interest
Period for each Eurodollar Rate Advance, the interest rate per annum (rounded
upward to the nearest 1/100 of 1% per annum) appearing on Reuters Screen LIBO
page as the London interbank offered rate for deposits in Dollars at
approximately 11:00 a.m.





                                      -6-
<PAGE>   13
(London time) two Business Days before the first day of such Interest Period
for a term comparable to such Interest Period; provided, however, if more than
one rate is specified on Reuters Screen LIBO page, the applicable rate shall be
the arithmetic mean of all such rates.

         "Eurodollar Rate Advance" means an Advance which bears interest as
provided in Section 2.08(b).

         "Eurodollar Rate Reserve Percentage" of any Bank for the Interest
Period for any Eurodollar Rate Advance means the reserve percentage applicable
during such Interest Period (or if more than one such percentage shall be so
applicable, the daily average of such percentages for those days in such
Interest Period during which any such percentage shall be so applicable) under
regulations issued from time to time by the Federal Reserve Board for
determining the maximum reserve requirement (including, without limitation, any
emergency, supplemental or other marginal reserve requirement) for such Bank
with respect to liabilities or assets consisting of or including Eurocurrency
Liabilities having a term equal to such Interest Period.

         "Event of Default" has the meaning specified in Section 7.01.

         "Existing Letters of Credit" means the letters of credit outstanding
on the date of this Agreement issued for the account of the Borrower or its
Subsidiaries which are described in the attached Schedule 6.02, as the same may
be amended, supplemented, and otherwise modified from time to time.

         "Existing Letter of Credit Exposure" means at any time, the sum of (a)
the aggregate undrawn maximum face amount of each Existing Letter of Credit at
such time, plus (b) the aggregate unpaid amount of all reimbursement
obligations for payments made under Existing Letters of Credit at such time.

         "Expiration Date" means, with respect to any Letter of Credit, the
date on which such Letter of Credit will expire or terminate in accordance with
its terms.

         "Federal Funds Rate" means, for any period, a fluctuating interest
rate per annum equal for each day during such period to the weighted average of
the rates on overnight Federal funds transactions with members of the Federal
Reserve System arranged by Federal funds brokers, as published for such day
(or, if such day is not a Business Day, for the next 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 for any such day
on such transactions received by the Agent from three Federal funds brokers of
recognized standing selected by it.





                                      -7-
<PAGE>   14
         "Federal Reserve Board" means the Board of Governors of the Federal
Reserve System or any of its successors.

         "Financial Statements" means the balance sheet and statements of
income, retained earnings and cash flow dated December 31, 1995 referred to in
Section 4.05, copies of which have been delivered to the Agent and the Banks.

         "GAAP" means United States generally accepted accounting principles as
in effect from time to time, applied on a basis consistent with the
requirements of Section 1.03.

         "Governmental Authority" means any foreign governmental authority, the
United States of America, any state of the United States of America and any
subdivision of any of the foregoing, and any agency, department, commission,
board, authority or instrumentality, bureau or court having jurisdiction over
any Bank, the Borrower, or the Borrower's Subsidiaries or any of their
respective Properties.

         "Guaranties" means the Guaranty dated as of September 26, 1996, made
by The Stone Petroleum Corporation in favor of the Agent for the ratable
benefit of the Banks in the form of Exhibit C and any other guaranty of the
obligations of the Borrower to the Agent for the benefit of the Banks, as the
same may be amended, supplemented, or otherwise modified from time to time.

         "Guarantors" means The Stone Petroleum Corporation, a Delaware
corporation, and each other Person that now or hereafter executes a Guaranty.

         "Hazardous Substance" means the substances identified as such pursuant
to CERCLA and those regulated under any other Environmental Law, including
without limitation pollutants, contaminants, petroleum, petroleum products,
radionuclides, radioactive materials, and medical and infectious waste.

         "Hazardous Waste" means the substances regulated as such pursuant to
any Environmental Law.

         "Interest Period" means, for each Eurodollar Rate Advance comprising
part of the same Borrowing, the period commencing on the date of such Advance
or the date of the Conversion of any Base Rate Advance into such an Advance and
ending on the last day of the period selected by the Borrower pursuant to the
provisions below or by Section 2.03 and, thereafter, each subsequent period
commencing on the last day of the immediately preceding Interest Period and
ending on the last day of the period selected by the Borrower pursuant to the
provisions below or by Section 2.03.  The duration of each such Interest Period
shall be one, two, three, or six months, in each case as the Borrower may, upon
notice received





                                      -8-
<PAGE>   15
by the Agent not later than 10:00 a.m. (Dallas, Texas, time) on, the third
Business Day prior to the first day of such Interest Period select; provided,
however, that:

         (a)     the Borrower may not select any Interest Period for any
Revolving Advance which ends after the Revolving Maturity Date and any Term
Advance which ends after the Term Maturity Date;

         (b)     Interest Periods commencing on the same date for Advances
comprising part of the same Borrowing shall be of the same duration;

         (c)     whenever the last day of any Interest Period would otherwise
occur on a day other than a Business Day, the last day of such Interest Period
shall be extended to occur on the next succeeding Business Day, provided that
if such extension would cause the last day of such Interest Period to occur in
the next following calendar month, the last day of such Interest Period shall
occur on the next preceding Business Day; and

         (d)     any Interest Period which begins on the last Business Day of a
calendar month (or on a day for which there is no numerically corresponding day
in the calendar month at the end of such Interest Period) shall end on the last
Business Day of the calendar month in which it would have ended if there were a
numerically corresponding day in such calendar month.

         "Interim Financial Statements" means the unaudited balance sheet and
statements of income, retained earnings, and cash flow dated as of June 30,
1996, referred to in Section 4.05.

         "Issuing Bank" means NationsBank of Texas, N.A., and any successor
issuing bank pursuant to Section 8.06.

         "Legal Requirement" means any law, statute, ordinance, decree,
requirement, order, judgment, rule, regulation (or official interpretation of
any of the foregoing) of, and the terms of any license or permit issued by, any
Governmental Authority, including, but not limited to, Regulations G, T, U, and
X.

         "Letter of Credit" means, individually, any letter of credit issued by
the Issuing Bank which is subject to this Agreement and "Letters of Credit"
means all such letters of credit collectively, provided that the Existing
Letters of Credit shall not be Letters of Credit hereunder until made Letters
of Credit under this Agreement by the Issuing Bank at the time such Existing
Letters of Credit are replaced or rolled over.





                                      -9-
<PAGE>   16
         "Letter of Credit Application" means the Issuing Bank's standard form
letter of credit application for either a commercial or standby letter of
credit, as the case may be, which has been executed by the Borrower and
accepted by the Issuing Bank in connection with the issuance of a Letter of
Credit, which form or forms as of the date of this Agreement are in the form of
the attached Exhibit G, as the same may be amended, supplemented, and otherwise
modified from time to time.

         "Letter of Credit Documents" means all Letters of Credit, Letter of
Credit Applications, and agreements, documents, and instruments entered into in
connection with or relating thereto.

         "Letter of Credit Exposure" means, at any time, the sum of (a) the
aggregate undrawn maximum face amount of each Letter of Credit at such time,
plus (b) the aggregate unpaid amount of all Reimbursement Obligations at such
time.

         "Letter of Credit Obligations" means any obligations of the Borrower
under this Agreement in connection with the Letters of Credit, including the
Reimbursement Obligations.

         "Lien" means any mortgage, lien, pledge, charge, deed of trust,
security interest, or encumbrance to secure or provide for the payment of any
obligation of any Person, whether arising by contract, operation of law, or
otherwise (including, without limitation, the interest of a vendor or lessor
under any conditional sale agreement, Capital Lease, or other title retention
agreement).

         "Lien Grant Documents" means the following documents duly executed by
all parties thereto, in form and substance satisfactory to the Agent:

         (a)     mortgages, deeds of trust, financing statements, or other
security instruments granting an Acceptable Security Interest in the Borrower's
and its Subsidiaries' Oil and Gas Properties with a loan value of at least 80%
of the most recent Borrowing Base determined by the Majority Banks;

         (b)     title opinions prepared by counsel approved by the Agent in
form and substance satisfactory to the Agent evidencing that the Borrower's and
its Subsidiaries' Oil and Gas Properties with a loan value of at least 80% of
the most recent Borrowing Base determined by the Majority Banks are
unencumbered except for title exceptions approved by the Agent;

         (c)     favorable opinions of the Borrower's general counsel and such
other counsel of the Borrower as the Agent may reasonably request covering the
authorization and





                                      -10-
<PAGE>   17
enforceability of the Credit Documents and such other matters as any Bank
through the Agent may reasonably request;

         (d)     a certificate of the Secretary or an Assistant Secretary of
the Borrower certifying the existence of the Borrower, a certificate of good
standing for the Borrower, the certificate of incorporation of the Borrower,
the bylaws of the Borrower, the resolutions of the Board of Directors of the
Borrower authorizing the execution of the Credit Documents and related
transactions, and the incumbency and signatures of the officers of the Borrower
authorized to execute the Credit Documents and related documents; and

         (e)     such other documents, certificates, letters in lieu of
transfer orders, opinions of Borrower's counsel, agreements, lien searches as
the Agent may reasonably request.

         "Liquid Investments" means:

         (a)     debt securities issued or directly and fully guaranteed or
insured by the United States government or any agency or instrumentality
thereof, with maturities of no more than two years from the date of
acquisition;

         (b)     commercial paper of a domestic issuer rated at the date of
acquisition not less than P1 by Moody's Investor Service, Inc., or A1 by
Standard & Poor's Corporation;

         (c)     certificates of deposit, demand deposits, Eurodollar time
deposits, overnight bank deposits, and bankers' acceptances, with maturities of
no more than two years from the date of acquisition, issued by any Bank or any
bank or trust company organized under the laws of the United States or any
state thereof whose deposits are insured by the Federal Deposit Insurance
Corporation, and having capital and surplus aggregating at least
$100,000,000.00;

         (d)     corporate bonds, mortgaged-backed securities, and municipal
bonds of a domestic issuer rated at the date of acquisition Aaa by Moody's
Investor Service, Inc., or AAA by Standard & Poor's Corporation, with
maturities of no more than two years from the date of acquisition;

         (e)     repurchase agreements secured by debt securities of the type
described in part (a) above, the market value of which, including accrued
interest, is not less than 100% of the amount of the repurchase agreement, with
maturities of no more than two years from the date of acquisition, issued by or
acquired from or through any Bank or any bank or trust company organized under
the laws of the United States or any state thereof and having capital and
surplus aggregating at least $100,000,000.00; and





                                      -11-
<PAGE>   18
         (f)     money market funds;

provided that (i) investments in any one issuer, excluding the United States
government or any agency or instrumentality thereof, shall not exceed 20% of
total fixed-income Liquid Investments based on market value at the time of
acquisition, (ii) fixed-income holdings shall not exceed 5% of all Investments
at any time, and (iii) certificates of deposit, commercial paper, corporate
bonds, mortgaged-backed securities, or municipal bonds issued by any one issuer
shall not exceed 5% of all Liquid Investments at any time.

         "Majority Banks" means, at any time, Banks holding at least 66-2/3% of
the then aggregate unpaid principal amount of the Notes held by the Banks and
the Letter of Credit Exposure of the Banks at such time, but in no event less
than two Banks at any time when there are three or more Banks; provided that if
no such principal amount or Letter of Credit Exposure is then outstanding,
"Majority Banks" shall mean Banks having at least 66-2/3% of the aggregate
amount of the Revolving Commitments at such time, but in no event less than two
Banks at any time when there are three or more Banks.

         "Material Adverse Change" means (a) a material adverse change in the
business, financial condition, or results of operations of the Borrower or any
of its Subsidiaries, or (b) the occurrence and continuance of any event or
circumstance which could reasonably be expected (i) to have a material adverse
effect on the Borrower's or any Guarantor's ability to perform its obligations
under this Agreement, any Note, any Guaranty, or any other Credit Document or
(ii) to cause a Default.

         "Maximum Rate" means the maximum nonusurious interest rate under
applicable law.

         "Mortgages" means any mortgages, deeds of trust, or other security
instruments granting or purporting to grant Acceptable Security Interests in
the Oil and Gas Properties of the Borrower and its Subsidiaries, as the same
may be amended, supplemented, or otherwise modified from time to time.

         "Multiemployer Plan" means a "multiemployer plan" as defined in
Section 4001(a)(3) of ERISA.

         "Net Income" means, for any Person and for any period of its
determination, the net income of such Person determined in accordance with GAAP
consistently applied, but excluding any gains and losses on sales and
retirements of assets and any noncash write-down of assets.





                                      -12-
<PAGE>   19
         "Net Worth" means, for any Person that is a corporation and as of any
date of its determination, the consolidated total assets of such Person less
the total liabilities of such Person, determined in accordance with GAAP
consistently applied.

         "Note" means a Revolving Note or a Term Note.

         "Notice of Borrowing" means a notice of borrowing in the form of the
attached Exhibit E signed by a Responsible Officer of the Borrower.

         "Notice of Conversion or Continuation" means a notice of conversion or
continuation in the form of the attached Exhibit F signed by a Responsible
Officer of the Borrower.

         "Obligations" means all principal, interest, fees, reimbursements,
indemnifications, and other amounts payable by the Borrower to the Agent or the
Banks under the Credit Documents.

         "Oil and Gas Properties" means fee, leasehold or other interests in or
under mineral estates or oil, gas, and other liquid or gaseous hydrocarbon
leases with respect to Properties situated in the United States or offshore
from any state of the United States, including overriding royalty and royalty
interests, leasehold estate interests, net profits interests, production
payment interests and mineral fee interests, together with contracts executed
in connection therewith and incidental rights belonging thereto.

         "Oil and Gas Reserve Report" means each engineering report covering
the Borrower's consolidated Oil and Gas Properties provided to the Agent
pursuant to Section 5.06(c).

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

         "Permitted Liens" means the Liens permitted to exist pursuant to
Section 6.01.

         "Person" means an individual, partnership, corporation (including a
business trust), joint stock company, limited liability corporation or company,
limited liability partnership, trust, unincorporated association, joint venture
or other entity, or a government or any political subdivision or agency thereof
or any trustee, receiver, custodian or similar official.

         "Plan" means an employee benefit plan (other than a Multiemployer
Plan) maintained for employees of the Borrower or any member of the Controlled
Group and covered by Title IV of ERISA or subject to the minimum funding
standards under Section 412 of the Code.





                                      -13-
<PAGE>   20
         "Property" of any Person means any property or assets (whether real,
personal, or mixed, tangible or intangible) of such Person.

         "Pro Rata Share" means, with respect to any Bank, either (a) the ratio
(expressed as a percentage) of such Bank's Commitments at such time to the
aggregate Commitments at such time or (b) if the Revolving Commitments have
been terminated, the ratio (expressed as a percentage) of such Bank's aggregate
outstanding Advances and Letter of Credit Exposure at such time to the
aggregate outstanding Advances and Letter of Credit Exposure of all the Banks
at such time.

         "Register" has the meaning set forth in paragraph (c) of Section 9.06.

         "Regulations G, T, U, and X" mean Regulations G, T, U, and X of the
Federal Reserve Board, as the same is from time to time in effect, and all
official rulings and interpretations thereunder or thereof.

         "Reimbursement Obligations" means all of the obligations of the
Borrower to reimburse the Issuing Bank for amounts paid by the Issuing Bank
under Letters of Credit as established by the Letter of Credit Applications and
Section 2.06(d).

         "Release" shall have the meaning set forth in CERCLA or under any
other Environmental Law.

         "Response" shall have the meaning set forth in CERCLA or under any
other Environmental Law.

         "Responsible Officer" means, with respect to any Person, such Person's
Chief Executive Officer, President, Chief Financial Officer, Chief Accounting
Officer, and Vice Presidents.

         "Restricted Payment" means, with respect to any Person, any dividends
or other distributions (in cash, property, or otherwise) on, or any payment for
the purchase, redemption, or other acquisition of, any shares of any capital
stock of such Person, other than dividends payable in such Person's stock.

         "Revolving Advance" means any advance by a Bank to the Borrower as
part of a Revolving Borrowing and refers to a Base Rate Advance or a Eurodollar
Rate Advance.

         "Revolving Borrowing" means, subject to Sections 2.03(c)(ii) and
2.04(d), a borrowing consisting of simultaneous Revolving Advances of the same
Type made by each Bank pursuant to Section 2.03(a), continued by each Bank
pursuant to Section 2.03(b), or





                                      -14-
<PAGE>   21
Converted by each Bank to Revolving Advances of a different Type pursuant to
Section 2.03(b).

         "Revolving Commitment" means, for any Bank, (a) until the repayment in
full of the Term Advances, its Revolving Commitment 1 and (b) on and after the
repayment in full of the Term Advances, its Revolving Commitment 2.

         "Revolving Commitment 1" means, for any Bank, the amount set opposite
such Bank's name on the signature pages hereof as its Revolving Commitment 1,
or if such Bank has entered into any Assignment and Acceptance, as set forth
for such Bank as its Revolving Commitment 1 in the Register maintained by the
Agent pursuant to Section 9.06(c), as such amount may be reduced or terminated
pursuant to Article VII.

         "Revolving Commitment 2" means, for any Bank,  the amount set opposite
such Bank's name on the signature pages hereof as its Revolving Commitment 2,
or if such Bank has entered into any Assignment and Acceptance, as set forth
for such Bank as its Revolving Commitment 2 in the Register maintained by the
Agent pursuant to Section 9.06(c), as such amount may be reduced or terminated
pursuant to Article VII.

         "Revolving Maturity Date" means the earlier of (a) October 1, 1999, or
(b) the earlier termination in whole of the Revolving Commitments pursuant to
Section 2.01(c) or Article VII.

         "Revolving Note" means a promissory note of the Borrower payable to
the order of any Bank, in substantially the form of the attached Exhibit D-1,
evidencing indebtedness of the Borrower to such Bank resulting from Revolving
Advances owing to such Bank.

         "Security Documents" means the Mortgages and any other documents
creating or purporting to create Liens in favor of the Agent securing the
repayment of the Obligations.

         "Subsidiary" of a Person means any corporation or other entity of
which more than 50% of the outstanding capital stock or other ownership
interests having ordinary voting power to elect a majority of the board of
directors or similar governing body of such corporation or other entity
(irrespective of whether at such time capital stock or other ownership
interests of any other class or classes of such corporation or other entity
shall or might have voting power upon the occurrence of any contingency) is at
the time directly or indirectly owned by such Person, by such Person and one or
more Subsidiaries of such Person or by one or more Subsidiaries of such Person.

         "Tangible Net Worth" means, for any Person that is a corporation and
as of the date of its determination, the consolidated Net Worth of such Person,
excluding all consolidated





                                      -15-
<PAGE>   22
intangible assets of such Person, as determined in accordance with GAAP
consistently applied.

         "Term Advance" means any advance by a Bank to the Borrower as part of
a Term Borrowing and refers to a Base Rate Advance or a Eurodollar Rate
Advance.

         "Term Borrowing" means, subject to Sections 2.03(c)(ii) and 2.04(d), a
borrowing consisting of simultaneous Term Advances of the same Type made by
each Bank pursuant to Section 2.03(a), continued by each Bank pursuant to
Section 2.03(b), or Converted by each Bank to Term Advances of a different Type
pursuant to Section 2.03(b).

         "Term Commitment" means, for each Bank, the amount set opposite such
Bank's name on the signature pages of this Agreement as its Term Commitment or,
if such Bank has entered into any Assignment and Acceptance after the Effective
Date, set forth for such Bank as its Term Commitment in the Register maintained
by the Agent pursuant to Section 9.06(c); provided, however, that after October
31, 1996, the Term Commitment for such Bank shall be zero.

         "Term Maturity Date" means October 1, 1997.

         "Term Note" means a promissory note of the Borrower payable to the
order of any Bank in substantially the form of the attached Exhibit D-2,
evidencing indebtedness of the Borrower to such Bank resulting from any Term
Advance to such Bank.

         "Termination Event" means (a) a Reportable Event described in Section
4043 of ERISA and the regulations issued thereunder (other than a Reportable
Event not subject to the provision for 30-day notice to the PBGC under such
regulations), (b) the withdrawal of the Borrower or any of its Affiliates from
a Plan during a plan year in which it was a "substantial employer" as defined
in Section 4001(a)(2) of ERISA, (c) the filing of a notice of intent to
terminate a Plan or the treatment of a Plan amendment as a termination under
Section 4041 of ERISA, (d) the institution of proceedings to terminate a Plan
by the PBGC, or (e) any other event or condition which constitutes grounds
under Section 4042 of ERISA for the termination of, or the appointment of a
trustee to administer, any Plan.

         "Type" has the meaning set forth in Section 1.04.

         "Voting Securities" means with respect to any corporation, capital
stock of the corporation having general voting power under ordinary
circumstances to elect directors of such corporation (irrespective of whether
at the time stock of any other class or classes shall have or might have
special voting power or rights by reason of the happening of any contingency).





                                      -16-
<PAGE>   23
         Section 1.02.    Computation of Time Periods.  In this Agreement in
the computation of periods of time from a specified date to a later specified
date, the word "from" means "from and including" and the words "to" and "until"
each means "to but excluding".

         Section 1.03.    Accounting Terms; Changes in GAAP.

         (a)     All accounting terms not specifically defined in this
Agreement shall be construed in accordance with GAAP applied on a consistent
basis with those applied in the preparation of the Financial Statements.

         (b)     Unless otherwise indicated, all financial statements of the
Borrower, all calculations for compliance with covenants in this Agreement and
all calculations of any amounts to be calculated under the definitions in
Section 1.01 shall be based upon the consolidated accounts of the Borrower and
its Subsidiaries in accordance with GAAP (or in compliance with the regulations
promulgated by the United States Securities and Exchange Commission regarding
financial reporting) and consistent with the principles applied in preparing
the Financial Statements.

         Section 1.04.    Types of Advances.  Advances are distinguished by
"Type."  The "Type" of an Advance refers to the determination whether such
Advance is a Eurodollar Rate Advance or Base Rate Advance.  Borrowings and
Advances are also distinguished by "Class."  The "Class" of a Borrowing or an
Advance refers to the determination whether such Borrowing or Advance is a
Revolving Borrowing or a Term Borrowing or a Revolving Advance or a Term
Advance, as applicable.

         Section 1.05.    Miscellaneous.  Article, Section, Schedule, and
Exhibit references are to Articles and Sections of and Schedules and Exhibits
to this Agreement, unless otherwise specified.


                                   ARTICLE II

                               CREDIT FACILITIES

         Section 2.01.    Commitment for Advances.

         (a)     Revolving Advances.  Each Bank severally agrees, on the terms
and conditions set forth in this Agreement, to make Revolving Advances to the
Borrower from time to time on any Business Day during the period from the date
of this Agreement until the Revolving Maturity Date in an aggregate outstanding
amount up to but not to exceed an amount equal to (i) the lesser of such Bank's
Revolving Commitment or such Bank's Pro





                                      -17-
<PAGE>   24
Rata Share of the Borrowing Base less (ii) the sum of (A) such Bank's Pro Rata
Share of the Letter of Credit Exposure, and (B) such Bank's Pro Rata Share of
the Existing Letter of Credit Exposure provided that the sum of (1) the
outstanding amount of all Revolving Advances made by such Bank, (2) such Bank's
Pro Rata Share of the Letter of Credit Exposure, and (3) such Bank's Pro Rata
Share of the Existing Letter of Credit Exposure shall not exceed such Bank's
Revolving Commitment.  Each Revolving Borrowing shall, in the case of Revolving
Borrowings consisting of Base Rate Advances, be in an aggregate amount not less
than $500,000.00 and in integral multiples of $100,000.00 in excess thereof,
and in the case of Revolving Borrowings consisting of Eurodollar Rate Advances,
be in an aggregate amount not less than $2,000,000.00 or in integral multiples
of $1,000,000.00 in excess thereof, and in each case shall consist of Revolving
Advances of the same Type made on the same day by the Banks ratably according
to their respective Revolving Commitments.  Within the limits of each Bank's
Revolving Commitment, and subject to the terms of this Agreement, the Borrower
may from time to time borrow, prepay, and reborrow Revolving Advances.

         In addition to the foregoing, on the date of the repayment in full of
the Term Advances and after giving effect to the change in Revolving
Commitments on such date, (i) each Bank that has a Revolving Commitment 1 which
is greater than its Revolving Commitment 2 agrees to transfer in immediately
available funds to the Agent on or before 11:00 a.m.  (Dallas, Texas, time) the
amount necessary to make such Bank's Pro Rata Share of the outstanding
Revolving Advances equal such Bank's Pro Rata Share of the aggregate Revolving
Commitments 2 on such date and (ii) the Agent agrees to promptly transfer after
its receipt of such funds to each Bank that has a Revolving Commitment 2 which
is greater than its Revolving Commitment 1 the amount necessary to make such
Bank's Pro Rata Share of the outstanding Revolving Advances equal to such
Bank's Pro Rata Share of the aggregate Revolving Commitments 2 on such date.
The Borrower agrees to pay the costs, if any, incurred by the Banks under
Section 2.11 in connection with the transfers of funds provided for in the
preceding sentence.

         (b)     Term Advances.  Each Bank severally agrees, on the terms and
conditions set forth in this Agreement, to make Term Advances to the Borrower
from time to time on any Business Day during the period from the date of this
Agreement until October 31, 1996 in an amount equal to such Bank's Term
Commitment.  Each Term Borrowing shall, in the case of Term Borrowings
consisting of Base Rate Advances, be in an aggregate amount not less than
$500,000.00 and in integral multiples of $100,000.00 in excess thereof, and in
the case of Term Borrowings consisting of Eurodollar Rate Advances, be in an
aggregate amount not less than $1,000,000.00 or in integral multiples of
$1,000,000.00 in excess thereof, and in each case shall consist of Term
Advances of the same Type made on the same day by the Banks ratably according
to their respective Term Commitments.  No amount of any Term Borrowing that has
been repaid may be reborrowed.





                                      -18-
<PAGE>   25
         (c)     Reduction of Revolving Commitment.  The Borrower shall have
the right, upon at least three Business Days' irrevocable notice to the Agent,
to terminate in whole or reduce ratably in part the unused portion of the
Revolving Commitments; provided that each partial reduction of the Revolving
Commitments shall be in the aggregate amount of $5,000,000.00 or in integral
multiples of $1,000,000.00 in excess thereof.  Any reduction or termination of
the Revolving Commitments pursuant to this Section 2.01(c) shall be permanent,
with no obligation of the Banks to reinstate such Revolving Commitments and the
commitment fees provided for in Section 2.07(a) shall thereafter be computed on
the basis of the Revolving Commitments, as so reduced.

         (d)     Notes.  The indebtedness of the Borrower to each Bank
resulting from the Revolving Advances owing to such Bank shall be evidenced by
a Revolving Note of the Borrower in the maximum principal amount of, before the
Term Advances are repaid in full, such Bank's Revolving Commitment 1 and, on
and after the Term Advances have been repaid in full, such Bank's Revolving 2
Commitment, in each case payable to the order of such Bank.  The Borrower shall
deliver to each Bank in exchange for such Bank's existing Revolving Note a new
Revolving Note in the maximum principal amount required by the previous
sentence on the date of the repayment in full of the Term Advances.  The
indebtedness of the Borrower to each Bank resulting from the Term Advances
owing to such Bank shall be evidenced by a Term Note of the Borrower in the
maximum principal amount of such Bank's Term Commitment payable to the order of
such Bank.

         Section 2.02.    Borrowing Base.

         (a)     The Borrowing Base as of the date of this Agreement has been
set by the Majority Banks and acknowledged by the Borrower as $60,000,000.00.

         (b)     From the date hereof through the Revolving Maturity Date and
subject to the further provisions of this Section 2.02, the Borrowing Base
shall be redetermined by the Majority Banks within 30 days after the receipt of
each Oil and Gas Reserve Report scheduled to be provided to the Agent pursuant
to Sections 5.06(c)(i) and (c)(ii) on the basis of information, including such
Oil and Gas Reserve Reports, supplied by Borrower in compliance with the
provisions of this Agreement, including such additional data concerning
pricing, quantities of production, purchasers of production, and other
information and engineering and geological data with respect thereto as the
Agent or any Bank may reasonably request, together with all other information
then available to the Agent and the Banks.  Notwithstanding the foregoing, the
Majority Banks may, in the exercise of their good faith discretion, make
redeterminations of the Borrowing Base (i) from time to time on the basis of
information then available to the Agent and the Banks regarding the Borrower's
Oil and Gas Properties, and (ii) from time to time upon the occurrence of any
Material Adverse Change.





                                      -19-
<PAGE>   26
         (c)     The Borrower may request the Majority Banks to redetermine the
Borrowing Base by providing a written request to the Agent, but only two such
requests may be made during any fiscal year of the Borrower.  In connection
with any such request, the Borrower shall provide the Agent and the Banks with
an interim reserve report prepared by the Borrower together with such other
information, including additional data concerning pricing, quantities of
production, purchasers of production, and other information and engineering and
geological data, as the Agent or any Bank may reasonably request.  Within 30
days following the receipt of such interim reserve report and other
information, the Majority Banks shall make a redetermination of the Borrowing
Base.

         (d)     Notwithstanding the foregoing paragraphs (b) and (c), at any
time that any Term Advances are outstanding, the Borrowing Base may only be
increased by agreement of all of the Banks.  Additionally, if any Term Advances
are outstanding on January 1, 1997, all of the Banks shall redetermine the
Borrowing Base on or before January 15, 1997 based on information then
available to the Banks and the outstanding amount of the Term Advances.  The
Borrowing Base so redetermined shall be in effect until the next Borrowing Base
redetermination under the other provisions of this Section 2.02.

         (e)     The Majority Banks or, in the case of redetermination under
paragraph (d) above, all of the Banks shall notify the Agent in writing of each
redetermination of the Borrowing Base approved by the Majority Banks or all of
the Banks, as the case may be, and the Agent shall in turn notify the Borrower
of such redetermination.  Until the Borrower receives such notification from
the Agent, the Borrowing Base established for the directly proceeding period
shall remain in effect, and thereafter the new Borrowing Base as set forth in
such notification shall be in effect.

         (f)     The Borrowing Base shall represent the determination by the
Majority Banks or, in the case of redetermination under paragraph (d) above,
all of the Banks in their sole discretion, of the loan value of the Borrower's
and its Subsidiaries unencumbered Oil and Gas Properties, but the Majority
Banks or all of the Banks, as the case may be, shall make their determination
in accordance with the applicable definitions and provisions herein contained,
each such Bank's standard policies regarding energy lending, industry lending
practices, consultation with the Agent and the other Banks (but without
requiring the approval thereof), and consideration for the nature of the
facilities established hereunder.  The Borrower acknowledges that the
determination of the Borrowing Base contains an equity cushion (market value in
excess of loan value), which is acknowledged by Borrower to be essential for
the adequate protection of the Agent and the Banks.

         (g)     The Borrower shall also have the right to reduce the Borrowing
Base once during the period from October 1 to March 31 and once during the
period from April 1 to September 30 during each year by providing the Agent 30
days advance written of such





                                      -20-
<PAGE>   27
reduction.  The Agent shall promptly send to each Bank a copy of such notice
and such reduction shall be effective on the date of the Agent's receipt of
such notice.

         (h)     As of the date of this Agreement, the Agent has provided the
Borrower with the Agent's standard policies regarding energy lending.  The
Agent, but not any other Bank, agrees to provide the Borrower with written
notice of any changes to such policies.

         Section 2.03.    Method of Borrowing.

         (a)     Notice.  Each Borrowing shall be made pursuant to a Notice of
Borrowing (or by telephone notice promptly confirmed in writing by a Notice of
Borrowing), given not later than 10:00 a.m. (Dallas, Texas, time) (i) on the
third Business Day before the date of the proposed Borrowing, in the case of a
Eurodollar Rate Borrowing or (ii) on the Business Day of the proposed
Borrowing, in the case of a Base Rate Borrowing, by the Borrower to the Agent,
which shall in turn give to each Bank prompt notice of such proposed Borrowing
by telecopier or telex.  Each Notice of a Borrowing shall be given by
telecopier or telex, confirmed immediately in writing specifying the
information required therein.  In the case of a proposed Borrowing comprised of
Eurodollar Rate Advances, the Agent shall promptly notify each Bank of the
applicable interest rate under Section 2.08(b). Each Bank shall, before 10:00
a.m. (Dallas, Texas, time) on the date of such Borrowing, make available for
the account of its Applicable Lending Office to the Agent at its address
referred to in Section 9.02, or such other location as the Agent may specify by
notice to the Banks, in same day funds, such Bank's Pro Rata Share of such
Borrowing.  After the Agent's receipt of such funds and upon fulfillment of the
applicable conditions set forth in Article III, the Agent shall make such funds
available to the Borrower at its account with the Agent.

         (b)     Conversions and Continuations.  The Borrower may elect to
Convert or continue any Borrowing under this Section 2.03 by delivering an
irrevocable Notice of Conversion or Continuation to the Agent at the Agent's
office no later than 10:00 a.m. (Dallas, Texas, time) (i) on the date which is
at least three Business Days in advance of the proposed Conversion or
continuation date in the case of a Conversion to or a continuation of a
Borrowing of the same Class comprised of Eurodollar Rate Advances and (ii) on
the Business Day of the proposed conversion date in the case of a Conversion to
a Borrowing of the same Class comprised of Base Rate Advances.  Each such
Notice of Conversion or Continuation shall be in writing or by telex or
telecopier confirmed immediately in writing specifying the information required
therein.  Promptly after receipt of a Notice of Conversion or Continuation
under this Section, the Agent shall provide each Bank with a copy thereof and,
in the case of a Conversion to or a Continuation of a Borrowing comprised of
Eurodollar Rate Advances, notify each Bank of the applicable interest rate
under Section 2.08(b).





                                      -21-
<PAGE>   28
         (c)     Certain Limitations.  Notwithstanding anything in paragraphs
(a) and (b) above:

              (i)         at no time shall there be more than eight Interest
         Periods applicable to outstanding Eurodollar Rate Advances;

             (ii)         if any Bank shall, at least one Business Day before
         the date of any requested Borrowing, Conversion, or continuation,
         notify the Agent that the introduction of or any change in or in the
         interpretation of any law or regulation makes it unlawful, or that any
         central bank or other Governmental Authority asserts that it is
         unlawful, for such Bank or its Eurodollar Lending Office to perform
         its obligations under this Agreement to make Eurodollar Rate Advances
         or to fund or maintain Eurodollar Rate Advances, the right of the
         Borrower to select Eurodollar Rate Advances from such Bank shall be
         suspended until such Bank shall notify the Agent that the
         circumstances causing such suspension no longer exist, and the Advance
         made by such Bank in respect of such Borrowing, Conversion, or
         continuation shall be a Base Rate Advance;

            (iii)         if the Agent is unable to determine the Eurodollar
         Rate for Eurodollar Rate Advances comprising any requested Borrowing,
         the right of the Borrower to select Eurodollar Rate Advances for such
         Borrowing or for any subsequent Borrowing shall be suspended until the
         Agent shall notify the Borrower and the Banks that the circumstances
         causing such suspension no longer exist, and each Advance comprising
         such Borrowing shall be a Base Rate Advance;

             (iv)         if the Majority Banks shall, at least one Business
         Day before the date of any requested Borrowing, notify the Agent that
         the Eurodollar Rate for Eurodollar Rate Advances comprising such
         Borrowing will not adequately reflect the cost to such Banks of making
         or funding their respective Eurodollar Rate Advances, as the case may
         be, for such Borrowing, the right of the Borrower to select Eurodollar
         Rate Advances for such Borrowing or for any subsequent Borrowing shall
         be suspended until the Agent shall notify the Borrower and the Banks
         that the circumstances causing such suspension no longer exist, and
         each Advance comprising such Borrowing shall be a Base Rate Advance;
         and

              (v)         if the Borrower shall fail to select the duration or
         continuation of any Interest Period for any Eurodollar Rate Advances
         in accordance with the provisions contained in the definition of
         "Interest Period" in Section 1.01 and paragraph (b) above, the Agent
         shall forthwith so notify the Borrower and the Banks and such Advances
         shall be made available to the Borrower on the date of such Borrowing
         as Base Rate Advances or, if an existing Advance, Convert into Base
         Rate Advances.





                                      -22-
<PAGE>   29
         (d)     Notices Irrevocable.  Each Notice of Borrowing and Notice of
Conversion or Continuation shall be irrevocable and binding on the Borrower.
In the case of any Borrowing which the related Notice of Borrowing specifies is
to be comprised of Eurodollar Rate Advances, the Borrower shall indemnify each
Bank against any loss, out-of-pocket cost, or expense incurred by such Bank as
a result of any failure by the Borrower to fulfill on or before the date
specified in such Notice of Borrowing for such Borrowing the applicable
conditions set forth in Article III including, without limitation, any loss
(including any loss of anticipated profits), cost, or expense incurred by
reason of the liquidation or reemployment of deposits or other funds acquired
by such Bank to fund the Advance to be made by such Bank as part of such
Borrowing when such Advance, as a result of such failure, is not made on such
date.

         (e)     Agent Reliance.  Unless the Agent shall have received notice
from a Bank before the date of any Borrowing that such Bank shall not make
available to the Agent such Bank's Pro Rata Share of such Borrowing, the Agent
may assume that such Bank has made its Pro Rata Share of such Borrowing
available to the Agent on the date of such Borrowing in accordance with
paragraph (a) of this Section 2.03 and the Agent may, in reliance upon such
assumption, make available to the Borrower on such date a corresponding amount.
If and to the extent that such Bank shall not have so made its Pro Rata Share
of such Borrowing available to the Agent, such Bank and the Borrower severally
agree to immediately repay to the Agent on demand such corresponding amount,
together with interest on such amount, for each day from the date such amount
is made available to the Borrower until the date such amount is repaid to the
Agent, at (i) in the case of the Borrower, the interest rate applicable on such
day to Advances comprising such Borrowing and (ii) in the case of such Bank,
the Federal Funds Rate for such day.  If such Bank shall repay to the Agent
such corresponding amount and interest as provided above, such corresponding
amount so repaid shall constitute such Bank's Advance as part of such Borrowing
for purposes of this Agreement even though not made on the same day as the
other Advances comprising such Borrowing.

         (f)     Bank Obligations Several.  The failure of any Bank to make the
Advance to be made by it as part of any Borrowing shall not relieve any other
Bank of its obligation, if any, to make its Advance on the date of such
Borrowing.  No Bank shall be responsible for the failure of any other Bank to
make the Advance to be made by such other Bank on the date of any Borrowing.

         Section 2.04.    Prepayment of Advances.

         (a)     Optional.  The Borrower may prepay Advances, after giving by
10:00 a.m. (Dallas, Texas, time) (i) in the case of Eurodollar Rate Advances,
at least two Business Days' or (ii) in case of Base Rate Advances, same
Business Day's, irrevocable prior written notice to the Agent stating the
proposed date and aggregate principal amount of such prepayment.





                                      -23-
<PAGE>   30
If any such notice is given, the Borrower shall prepay Advances comprising part
of the same Borrowing in whole or ratably in part in an aggregate principal
amount equal to the amount specified in such notice, together with accrued
interest to the date of such prepayment on the principal amount prepaid and
amounts, if any, required to be paid pursuant to Section 2.11 as a result of
such prepayment being made on such date; provided, however, that each partial
prepayment with respect to:  (A) any Borrowing comprised of Base Rate Advances
shall be made in $100,000.00 multiples and in an aggregate principal amount
such that after giving effect thereto such Borrowing shall have a principal
amount outstanding of at least $500,000.00 and (B) any Borrowing comprised of
Eurodollar Rate Advances shall be made in $1,000,000.00 multiples and in an
aggregate principal amount such that after giving effect thereto such Borrowing
shall have a principal amount outstanding of at least $2,000,000.00.  Full
prepayments of any Borrowing are permitted without restriction of amounts.

         (b)     Borrowing Base Deficiency.  If the aggregate outstanding
amount of Revolving Advances plus the Letter of Credit Exposure plus the
Existing Letter of Credit Exposure ever exceeds the Borrowing Base, the
Borrower shall, within ten days after receipt of written notice of such
condition from the Agent elect by written notice to the Agent to take one or
more of the following actions to remedy the Borrowing Base deficiency:

              (i)         prepay Revolving Advances and, if the Advances have
         been repaid in full, make deposits into the Cash Collateral Account to
         provide cash collateral for the Letter of Credit Exposure, such that
         the Borrowing Base deficiency is cured within ten days after the
         Borrower's written election;

             (ii)         add additional Oil and Gas Properties acceptable to
         the Majority Banks to the Borrowing Base such that the Borrowing Base
         deficiency is cured within 30 days after the Borrower's written
         election and, if any Oil and Gas Properties are so added to the
         Borrowing Base after December 31, 1996 and the Term Advances have not
         been repaid in full, provide the Agent for the benefit of the Banks an
         Acceptable Security Interest in at least 80% of the total Borrowing
         Base value of the Oil and Gas Properties included in the Borrowing
         Base most recently determined after such addition and deliver Lien
         Grant Documents for such Oil and Gas Properties; or

            (iii)         pay the deficiency in monthly installments in amounts
         satisfactory to the Majority Banks for the prepayment of Revolving
         Advances and, if the Revolving Advances have been repaid in full, make
         deposits into the Cash Collateral Account to provide cash collateral
         for the Letter of Credit Exposure such that the Borrowing Base
         deficiency is eliminated in a period satisfactory to the Majority
         Banks, but in no event to exceed six months, by irrevocably dedicating
         an amount of the monthly cash flow from the Borrower's and its
         Subsidiaries' Oil and Gas Properties to the





                                      -24-
<PAGE>   31
         prepayment of Revolving Advances and cash collateralization of the
         Letter of Credit Exposure;

provided that, if the Borrowing Base deficiency occurs because of a Borrowing
Base redetermination under Section 2.02(d), the Borrower may only elect the
options in Section 2.04(b)(i) or (iii) to remedy such Borrowing Base
deficiency.  Each prepayment pursuant to this Section 2.04(b) shall be
accompanied by accrued interest on the amount prepaid to the date of such
prepayment and amounts, if any, required to be paid pursuant to Section 2.11 as
a result of such prepayment being made on such date.

         (c)     Reduction of Revolving Commitments.  On the date of each
reduction of the aggregate Revolving Commitments pursuant to Section 2.01(c),
the Borrower agrees to make a prepayment in respect of the outstanding amount
of the Revolving Advances to the extent, if any, that the aggregate unpaid
principal amount of all Revolving Advances exceeds the Revolving Commitments,
as so reduced.  Each prepayment pursuant to this Section 2.04(c) shall be
accompanied by accrued interest on the amount prepaid to the date of such
prepayment and amounts, if any, required to be paid pursuant to Section 2.11 as
a result of such prepayment being made on such date.

         (d)     Term Advances.  The Borrower shall repay the Term Advances by
an amount equal to the net cash proceeds received by the Borrower or the
Guarantor from the sale of any of the Borrower's or the Guarantor's capital
stock (other than any common stock sold in connection with sales to its
employees pursuant to any employee stock option plan, employee compensation
arrangement, or other employee benefit plan), upon receipt of such proceeds,
whether at closing of such sale or thereafter.

         (e)     Illegality.  If any Bank shall notify the Agent and the
Borrower that the introduction of or any change in or in the interpretation of
any law or regulation makes it unlawful, or that any central bank or other
governmental authority asserts that it is unlawful for such Bank or its
Eurodollar Lending Office to perform its obligations under this Agreement to
maintain any Eurodollar Rate Advances of such Bank then outstanding hereunder,
(i) the Borrower shall, no later than 10:00 a.m. (Dallas, Texas, time) (A) if
not prohibited by law, on the last day of the Interest Period for each
outstanding Eurodollar Rate Advance made by such Bank or (B) if required by
such notice, on the second Business Day following its receipt of such notice
prepay all of the Eurodollar Rate Advances of made by such Bank then
outstanding, together with accrued interest on the principal amount prepaid to
the date of such prepayment and amounts, if any, required to be paid pursuant
to Section 2.11 as a result of such prepayment being made on such date, (ii)
such Bank shall simultaneously make a Base Rate Advance to the Borrower on such
date in an amount equal to the aggregate principal amount of the Eurodollar
Rate Advances prepaid to such Bank, and (iii) the right of the Borrower to
select Eurodollar Rate Advances from such Bank for any





                                      -25-
<PAGE>   32
subsequent Borrowing shall be suspended until such Bank gives notice referred
to above shall notify the Agent that the circumstances causing such suspension
no longer exist.

         (f)     No Additional Right; Ratable Prepayment.  The Borrower shall
have no right to prepay any principal amount of any Advance except as provided
in this Section 2.04, and all notices given pursuant to this Section 2.04 shall
be irrevocable and binding upon the Borrower.  Each payment of any Advance
pursuant to this Section 2.04 shall be made in a manner such that all Advances
comprising part of the same Borrowing are paid in whole or ratably in part.

         Section 2.05.    Repayment of Advances.  The Borrower shall repay to
the Agent for the ratable benefit of the Banks the outstanding principal amount
of each Revolving Advance on the Revolving Maturity Date.  The Borrower shall
repay to the Agent for the ratable benefit of the Banks the outstanding
principal amount of each Term Advance on the Term Maturity Date.

         Section 2.06.    Letters of Credit.

         (a)     Commitment.  From time to time from the date of this Agreement
until the Revolving Maturity Date, at the request of the Borrower, the Issuing
Bank shall, on the terms and conditions hereinafter set forth, issue, increase,
or extend the expiration date of Letters of Credit for the account of the
Borrower on any Business Day or convert an Existing Letter of Credit to a
Letter of Credit upon its renewal.  No Letter of Credit shall be issued,
increased, or extended and no Existing Letters of Credit shall convert to
Letters of Credit:

              (i)         unless such issuance, increase, extension or
         conversion would not cause the Letter of Credit Exposure plus the
         Existing Letter of Credit Exposure to exceed the lesser of (A)
         $15,000,000.00 or (B) the lesser of (1) the aggregate Revolving
         Commitments less the aggregate outstanding principal amount of all
         Revolving Advances or (2) the Borrowing Base less the aggregate
         outstanding principal amount of all Revolving Advances;

             (ii)         unless such Letter of Credit has an Expiration Date
         not later than the earlier of (A) 12 months after the date of issuance
         thereof (or, if extendable beyond such period, unless such Letter of
         Credit is cancelable upon at least 30 days' notice given by the
         Issuing Bank to the beneficiary of such Letter of Credit) or (B) the
         Revolving Maturity Date;

            (iii)         unless such Letter of Credit Documents are in form
         and substance acceptable to the Issuing Bank in its sole discretion;





                                      -26-
<PAGE>   33
             (iv)         unless such Letter of Credit is a standby letter of
         credit not supporting the repayment of indebtedness for borrowed money
         of any Person; and

              (v)         unless the Borrower has delivered to the Issuing Bank
         a completed and executed Letter of Credit Application.

         (b)     Participations.  Upon the date of the issuance or increase of
a Letter of Credit or the conversion of an Existing Letter of Credit to a
Letter of Credit, the Issuing Bank shall be deemed to have sold to each other
Bank and each other Bank shall have been deemed to have purchased from the
Issuing Bank a participation in the related Letter of Credit Obligations equal
to such Bank's Pro Rata Share at such date and such sale and purchase shall
otherwise be in accordance with the terms of this Agreement.  The Issuing Bank
shall promptly notify each such participant Bank by telex, telephone, or
telecopy of each Letter of Credit issued, increased, or extended or converted
and the actual dollar amount of such Bank's participation in such Letter of
Credit.

         (c)     Issuing.  Each Letter of Credit shall be issued, increased, or
extended or converted from an Existing Letter of Credit pursuant to a Letter of
Credit Application (or by telephone notice promptly confirmed in writing by a
Letter of Credit Application), given not later than 10:00 a.m. (Dallas, Texas,
time) on the fifth Business Day before the date of the proposed issuance,
increase, or extension of the Letter of Credit or conversion of the Existing
Letter of Credit, and the Agent shall give to each Bank prompt notice of
thereof by telex, telephone, or telecopy.  Each Letter of Credit Application
shall be given by telecopier or telex, confirmed immediately in writing,
specifying the information required therein.  After the Agent's receipt of such
Letter of Credit Application and upon fulfillment of the applicable conditions
set forth in Article III, the Agent shall issue, increase, or extend such
Letter of Credit or convert such Existing Letter of Credit for the account of
the Borrower.  Each Letter of Credit Application shall be irrevocable and
binding on the Borrower.

         (d)     Reimbursement.  The Borrower hereby agrees to pay on demand to
the Issuing Bank an amount equal to any amount paid by the Issuing Bank under
any Letter of Credit.  In the event the Issuing Bank makes a payment pursuant
to a request for draw presented under a Letter of Credit and such payment is
not promptly reimbursed by the Borrower upon demand, the Issuing Bank shall
give the Agent notice of the Borrower's failure to make such reimbursement and
the Agent shall promptly notify each Bank of the amount necessary to reimburse
the Issuing Bank.  Upon such notice from the Agent, each Bank shall promptly
reimburse the Issuing Bank for such Bank's Pro Rata Share of such amount, and
such reimbursement shall be deemed for all purposes of this Agreement to be a
Revolving Advance to the Borrower transferred at the Borrower's request to the
Issuing Bank.  If such reimbursement is not made by any Bank to the Issuing
Bank on the same day on which the Agent notifies such Bank to make
reimbursement to the Issuing Bank





                                      -27-
<PAGE>   34
hereunder, such Bank shall pay interest on its Pro Rata Share thereof to the
Issuing Bank at a rate per annum equal to the Federal Funds Rate.  The Borrower
hereby unconditionally and irrevocably authorizes, empowers, and directs the
Agent and the Banks to record and otherwise treat such reimbursements to the
Issuing Bank as Base Rate Advances under a Revolving Borrowing requested by the
Borrower to reimburse the Issuing Bank which have been transferred to the
Issuing Bank at the Borrower's request.

         (e)     Obligations Unconditional.  The obligations of the Borrower
under this Agreement in respect of each Letter of Credit shall be unconditional
and irrevocable, and shall be paid strictly in accordance with the terms of
this Agreement under all circumstances, including, without limitation, the
following circumstances:

              (i)         any lack of validity or enforceability of any Letter
         of Credit Documents;

             (ii)         any amendment or waiver of, or any consent to,
         departure from any Letter of Credit Documents;

            (iii)         the existence of any claim, set-off, defense, or
         other right which the Borrower may have at any time against any
         beneficiary or transferee of such Letter of Credit (or any Persons for
         whom any such beneficiary or any such transferee may be acting), the
         Issuing Bank, or any other person or entity, whether in connection
         with this Agreement, the transactions contemplated in this Agreement
         or in any Letter of Credit Documents, or any unrelated transaction;

             (iv)         any statement or any other document presented under
         such 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 to the extent the Issuing Bank would not be
         liable therefor pursuant to the following paragraph (f); or

              (v)         payment by the Issuing Bank under such Letter of
         Credit against presentation of a draft or certificate which does not
         comply with the terms of such Letter of Credit;

provided, however, that nothing contained in this paragraph (e) shall be deemed
to constitute a waiver of any remedies of the Borrower in connection with the
Letters of Credit or the Borrower's rights under Section 2.06(f) below.

         (f)     Liability of Issuing Bank.  The Borrower assumes all risks of
the acts or omissions of any beneficiary or transferee of any Letter of Credit
with respect to its use of





                                      -28-
<PAGE>   35
such Letter of Credit.  Neither the Issuing Bank nor any of its officers or
directors shall be liable or responsible for:

              (i)         the use which may be made of any Letter of Credit or
         any acts or omissions of any beneficiary or transferee in connection
         therewith;

             (ii)         the validity, sufficiency, or genuineness of
         documents, or of any endorsement thereon, even if such documents
         should prove to be in any or all respects invalid, insufficient,
         fraudulent, or forged;

            (iii)         payment by the Issuing Bank against presentation of
         documents which do not comply with the terms of a Letter of Credit,
         including failure of any documents to bear any reference or adequate
         reference to the relevant Letter of Credit; or

             (iv)         any other circumstances whatsoever in making or
         failing to make payment under any Letter of Credit (INCLUDING THE
         ISSUING BANK'S OWN NEGLIGENCE),

except that the Borrower shall have a claim against the Issuing Bank, and the
Issuing Bank shall be liable to the Borrower, to the extent of any direct, as
opposed to consequential, damages suffered by the Borrower which the Borrower
proves were caused by (A) the Issuing Bank's willful misconduct or gross
negligence in determining whether documents presented under a Letter of Credit
comply with the terms of such Letter of Credit or (B) the Issuing Bank's
willful failure to make lawful payment under any Letter of Credit after the
presentation to it of a draft and certificate strictly complying with the terms
and conditions of such Letter of Credit.  In furtherance and not in limitation
of the foregoing, the Issuing Bank may accept documents that appear on their
face to be in order, without responsibility for further investigation,
regardless of any notice or information to the contrary.

         (g)     Cash Collateral Account.

              (i)         If the Borrower is required to deposit funds in the
         Cash Collateral Account pursuant to Sections 2.04(b), 7.02(b), or
         7.03(b), then the Borrower and the Agent shall establish the Cash
         Collateral Account and the Borrower shall execute any documents and
         agreements, including the Agent's standard form assignment of deposit
         accounts, that the Agent requests in connection therewith to establish
         the Cash Collateral Account and grant the Agent a first priority
         security interest in such account and the funds therein.  The Borrower
         hereby pledges to the Agent and grants the Agent a security interest
         in the Cash Collateral Account, whenever established,





                                      -29-
<PAGE>   36
         all funds held in the Cash Collateral Account from time to time, and
         all proceeds thereof as security for the payment of the Obligations.

             (ii)         So long as no Event of Default Exists, (A) the Agent
         may apply the funds held in the Cash Collateral Account only to the
         reimbursement of any Letter of Credit Obligations, and (B) the Agent
         shall release to the Borrower at the Borrower's written request any
         funds held in the Cash Collateral Account in an amount up to but not
         exceeding the excess, if any (immediately prior to the release of any
         such funds), of the total amount of funds held in the Cash Collateral
         Account over the Letter of Credit Exposure.  During the existence of
         any Event of Default, the Agent may apply any funds held in the Cash
         Collateral Account to the Obligations in any order determined by the
         Agent, regardless of any Letter of Credit Exposure which may remain
         outstanding.  The Agent may in its sole discretion at any time release
         to the Borrower any funds held in the Cash Collateral Account.

            (iii)         The Agent shall exercise reasonable care in the
         custody and preservation of any funds held in the Cash Collateral
         Account and shall be deemed to have exercised such care if such funds
         are accorded treatment substantially equivalent to that which the
         Agent accords its own property, it being understood that the Agent
         shall not have any responsibility for taking any necessary steps to
         preserve rights against any parties with respect to any such funds.

         Section 2.07.    Fees.

         (a)     Commitment Fees.

              (i)         The Borrower agrees to pay to the Agent for the
         account of each Bank a commitment fee of .375% per annum on the
         average daily amount by which such Bank's Pro Rata Share of the
         Borrowing Base exceeds the sum of such Bank's outstanding Revolving
         Advances and such Bank's Pro Rata Share of the Letter of Credit
         Exposure, from the date of this Agreement until the Revolving Maturity
         Date.

             (ii)         The commitment fees shall be due and payable
         quarterly in arrears on the last day of each March, June, September,
         and December during the term of this Agreement and on the Revolving
         Maturity Date.

         (b)     Agent Fees.  The Borrower agrees to pay to the Agent for the
benefit of the Agent the fees described in the letter dated September 6, 1996,
from the Agent to the Borrower (the "Agent's Fee Letter").





                                      -30-
<PAGE>   37
         (c)     Letter of Credit Fees.  The Borrower agrees to pay to the
Agent for the pro rata benefit of the Banks a fee for each Letter of Credit
issued hereunder equal to 1.00% per annum on the face amount of such Letter of
Credit, but with minimum annual fee of $750 on each Letter of Credit.  Each
such fee shall be payable annually in advance on the date of the issuance,
increase or extension of the Letter of Credit, but, in the case of an increase
or extension only, on the amount of such increase or for the period of such
extension.

         Section 2.08.    Interest.  The Borrower shall pay interest on the
unpaid principal amount of each Advance made by each Bank from the date of such
Advance until such principal amount shall be paid in full, at the following
rates per annum:

         (a)     Base Rate Advances.  If such Advance is a Base Rate Advance, a
rate per annum equal at all times to the Adjusted Base Rate in effect from time
to time plus the Applicable Margin in effect from time to time, payable in
arrears on the last day of March, June, September, and December and on the date
such Base Rate Advance shall be paid in full, provided that any amount of
principal which is not paid when due (whether at stated maturity, by
acceleration, or otherwise) shall bear interest from the date on which such
amount is due until such amount is paid in full, payable on demand, at a rate
per annum equal at all times to the Adjusted Base Rate in effect from time to
time plus the Applicable Margin plus 3.00% per annum.

         (b)     Eurodollar Rate Advances.  If such Advance is a Eurodollar
Rate Advance, a rate per annum equal at all times during the Interest Period
for such Advance to the Eurodollar Rate for such Interest Period plus the
Applicable Margin in effect from time to time, payable on the last day of such
Interest Period, and, in the case of six-month Interest Periods, on the day
which occurs during such Interest Period three months from the first day of
such Interest Period, provided that any amount of principal which is not paid
when due (whether at stated maturity, by acceleration, or otherwise) shall bear
interest from the date on which such amount is due until such amount is paid in
full, payable on demand, at a rate per annum equal at all times to the Adjusted
Base Rate in effect from time to time plus the Applicable Margin plus 3.00% per
annum.

         (c)     Additional Interest on Eurodollar Rate Advances.  The Borrower
shall pay to each Bank, so long as any such Bank shall be required under
regulations of the Federal Reserve Board to maintain reserves with respect to
liabilities or assets consisting of or including Eurocurrency Liabilities,
additional interest on the unpaid principal amount of each Eurodollar Rate
Advance of such Bank, from the effective date of such Advance until such
principal amount is paid in full, at an interest rate per annum equal at all
times to the remainder obtained by subtracting (A) the Eurodollar Rate for the
Interest Period for such Advance from (B) the rate obtained by dividing such
Eurodollar Rate by a percentage equal to 100% minus the Eurodollar Rate Reserve
Percentage of such Bank for such Interest





                                      -31-
<PAGE>   38
Period, payable on each date on which interest is payable on such Advance.
Such additional interest payable to any Bank shall be determined by such Bank
and notified to the Borrower through the Agent (such notice to include the
calculation of such additional interest, which calculation shall be conclusive
in the absence of manifest error).

         (d)     Usury.

              (i)         If, with respect to any Bank, the effective rate of
         interest contracted for under the Credit Documents, including the
         stated rates of interest and fees contracted for hereunder and any
         other amounts contracted for under the Credit Documents which are
         deemed to be interest, at any time exceeds the Maximum Rate, then the
         outstanding principal amount of the loans made by such Bank hereunder
         shall bear interest at a rate which would make the effective rate of
         interest for such Bank under the Credit Documents equal the Maximum
         Rate until the difference between the amounts which would have been
         due at the stated rates and the amounts which were due at the Maximum
         Rate (the "Lost Interest") has been recaptured by such Bank.

             (ii)         If, when the loans made hereunder are repaid in full,
         the Lost Interest has not been fully recaptured by such Bank pursuant
         to the preceding paragraph, then, to the extent permitted by law, for
         the loans made hereunder by such Bank the interest rates charged under
         Section 2.08 hereunder shall be retroactively increased such that the
         effective rate of interest under the Credit Documents was at the
         Maximum Rate since the effectiveness of this Agreement to the extent
         necessary to recapture the Lost Interest not recaptured pursuant to
         the preceding sentence and, to the extent allowed by law, the Borrower
         shall pay to such Bank the amount of the Lost Interest remaining to be
         recaptured by such Bank.

            (iii)         NOTWITHSTANDING the foregoing or any other term in
         this Agreement and the Credit Documents to the contrary, it is the
         intention of each Bank and the Borrower to conform strictly to any
         applicable usury laws.  Accordingly, if any Bank contracts for,
         charges, or receives any consideration which constitutes interest in
         excess of the Maximum Rate, then any such excess shall be canceled
         automatically and, if previously paid, shall at such Bank's option be
         applied to the outstanding amount of the loans made hereunder by such
         Bank or be refunded to the Borrower.

         Section 2.09.    Payments and Computations.

         (a)     Payment Procedures.  The Borrower shall make each payment
under this Agreement and under the Notes not later than 10:00 a.m. (Dallas,
Texas, time) on the day





                                      -32-
<PAGE>   39
when due in Dollars to the Agent at 901 Main Street, 49th Floor, Dallas, Texas
75202 (or such other location as the Agent shall designate in writing to the
Borrower), in same day funds.  The Agent shall promptly thereafter cause to be
distributed like funds relating to the payment of principal, interest or fees
ratably (other than amounts payable solely to the Agent, the Issuing Bank, or a
specific Bank pursuant to Section 2.07(b), 2.08(c), 2.11, 2.12, 2.13, 8.05, or
9.07, but after taking into account payments effected pursuant to Section 9.04)
to the Banks for the account of their respective Applicable Lending Offices,
and like funds relating to the payment of any other amount payable to any Bank
or the Issuing Bank to such Bank for the account of its Applicable Lending
Office, in each case to be applied in accordance with the terms of this
Agreement.

         (b)     Computations.  All computations of interest based on the Base
Rate shall be made by the Agent on the basis of a year of 365 or 366 days, as
the case may be, and all computations of interest based on the Eurodollar Rate
and the Federal Funds Rate and of fees shall be made by the Agent, on the basis
of a year of 360 days, in each case for the actual number of days (including
the first day, but excluding the last day) occurring in the period for which
such interest or fees are payable.  Each determination by the Agent of an
interest rate or fee shall be conclusive and binding for all purposes, absent
manifest error.

         (c)     Non-Business Day Payments.  Whenever any payment shall be
stated to be due on a day other than a Business Day, such payment shall be made
on the next succeeding Business Day, and such extension of time shall in such
case be included in the computation of payment of interest or fees, as the case
may be; provided, however, that if such extension would cause payment of
interest on or principal of Eurodollar Rate Advances to be made in the next
following calendar month, such payment shall be made on the next preceding
Business Day.

         (d)     Agent Reliance.  Unless the Agent shall have received written
notice from the Borrower prior to the date on which any payment is due to the
Banks that the Borrower shall not make such payment in full, the Agent may
assume that the Borrower has made such payment in full to the Agent on such
date and the Agent may, in reliance upon such assumption, cause to be
distributed to each Bank on such date an amount equal to the amount then due
such Bank.  If and to the extent the Borrower shall not have so made such
payment in full to the Agent, each Bank shall repay to the Agent forthwith on
demand such amount distributed to such Bank, together with interest, for each
day from the date such amount is distributed to such Bank until the date such
Bank repays such amount to the Agent, at the Federal Funds Rate for such day.

         Section 2.10.    Sharing of Payments, Etc.  If any Bank shall obtain
any payment (whether voluntary, involuntary, through the exercise of any right
of set-off, or otherwise) on account of the Advances or Letter of Credit
Obligations made by it in excess of its Pro





                                      -33-
<PAGE>   40
Rata Share of payments on account of the Advances or Letter of Credit
Obligations obtained by all the Banks, such Bank shall notify the Agent and
forthwith purchase from the other Banks such participations in the Advances
made by them or Letter of Credit Obligations held by them as shall be necessary
to cause such purchasing Bank to share the excess payment ratably with each of
them; provided, however, that if all or any portion of such excess payment is
thereafter recovered from such purchasing Bank, such purchase from each Bank
shall be rescinded and such Bank shall repay to the purchasing Bank the
purchase price to the extent of such Bank's ratable share (according to the
proportion of (a) the amount of the participation sold by such Bank to the
purchasing Bank as a result of such excess payment to (b) the total amount of
such excess payment) of such recovery, together with an amount equal to such
Bank's ratable share (according to the proportion of (a) the amount of such
Bank's required repayment to the purchasing Bank to (b) the total amount of all
such required repayments to the purchasing Bank) of any interest or other
amount paid or payable by the purchasing Bank in respect of the total amount so
recovered.  The Borrower agrees that any Bank so purchasing a participation
from another Bank pursuant to this Section 2.10 may, to the fullest extent
permitted by law, exercise all its rights of payment (including the right of
set-off) with respect to such participation as fully as if such Bank were the
direct creditor of the Borrower in the amount of such participation.

         Section 2.11.    Breakage Costs.  If (a) any payment of principal of
any Eurodollar Rate Advance is made other than on the last day of the Interest
Period for such Advance, whether as a result of any payment pursuant to Section
2.04, the acceleration of the maturity of the Notes pursuant to Article VII, or
otherwise, or (b) the Borrower fails to make a principal or interest payment
with respect to any Eurodollar Rate Advance on the date such payment is due and
payable, the Borrower shall, within 10 days of any written demand sent by any
Bank to the Borrower through the Agent, pay to the Agent for the account of
such Bank any amounts required to compensate such Bank for any additional
losses, out-of-pocket costs or expenses which it may reasonably incur as a
result of such payment or nonpayment, including, without limitation, any loss
(including loss of anticipated profits), cost or expense incurred by reason of
the liquidation or reemployment of deposits or other funds acquired by any Bank
to fund or maintain such Advance.

         Section 2.12.    Increased Costs.

         (a)     Eurodollar Rate Advances.  If, due to either (i) the
introduction of or any change (other than any change by way of imposition or
increase of reserve requirements included in the Eurodollar Rate Reserve
Percentage) in or in the interpretation of any law or regulation or (ii) the
compliance with any guideline or request from any central bank or other
Governmental Authority (whether or not having the force of law), there shall be
any increase in the cost to any Bank of agreeing to make or making, funding, or
maintaining Eurodollar Rate Advances, then the Borrower shall from time to
time, upon demand by such Bank (with





                                      -34-
<PAGE>   41
a copy of such demand to the Agent), immediately pay to the Agent for the
account of such Bank additional amounts sufficient to compensate such Bank for
such increased cost.  A certificate as to the amount of such increased cost and
detailing the calculation of such cost submitted to the Borrower and the Agent
by such Bank shall be conclusive and binding for all purposes, absent manifest
error.

         (b)     Capital Adequacy.  If any Bank or the Issuing Bank determines
in good faith that compliance with any law or regulation or any guideline or
request from any central bank or other governmental authority (whether or not
having the force of law) affects or would affect the amount of capital required
or expected to be maintained by such Bank or the Issuing Bank or any
corporation controlling such Bank or the Issuing Bank and that the amount of
such capital is increased by or based upon the existence of such Bank's
commitment to lend or the Issuing Bank's commitment to issue the Letters of
Credit and other commitments of this type, then, upon 30 days' prior written
notice by such Bank or the Issuing Bank (with a copy of any such demand to the
Agent), the Borrower shall immediately pay to the Agent for the account of such
Bank or to the Issuing Bank, as the case may be, from time to time as specified
by such Bank or the Issuing Bank, additional amounts sufficient to compensate
such Bank or the Issuing Bank, in light of such circumstances, (i) with respect
to such Bank, to the extent that such Bank reasonably determines such increase
in capital to be allocable to the existence of such Bank's commitment to lend
under this Agreement and (ii) with respect to the Issuing Bank, to the extent
that the Issuing Bank reasonably determines such increase in capital to be
allocable to the issuance or maintenance of the Letters of Credit.  A
certificate as to such amounts and detailing the calculation of such amounts
submitted to the Borrower by such Bank or the Issuing Bank shall be conclusive
and binding for all purposes, absent manifest error.

         (c)     Letters of Credit.  If any change in any law or regulation or
in the interpretation thereof by any court or administrative or Governmental
Authority charged with the administration thereof shall either (i) impose,
modify, or deem applicable any reserve, special deposit, or similar requirement
against letters of credit issued by, or assets held by, or deposits in or for
the account of, the Issuing Bank or (ii) impose on the Issuing Bank any other
condition regarding the provisions of this Agreement relating to the Letters of
Credit or any Letter of Credit Obligations, and the result of any event
referred to in the preceding clause (i) or (ii) shall be to increase the cost
to the Issuing Bank of issuing or maintaining any Letter of Credit (which
increase in cost shall be determined by the Issuing Bank's reasonable
allocation of the aggregate of such cost increases resulting from such event),
then, upon demand by the Issuing Bank, the Borrower shall pay to the Issuing
Bank, from time to time as specified by the Issuing Bank, additional amounts
which shall be sufficient to compensate the Issuing Bank for such increased
cost.  A certificate as to such increased cost incurred by the Issuing Bank, as
a result of any event mentioned in clause (i) or (ii) above, and detailing





                                      -35-
<PAGE>   42
the calculation of such increased costs submitted by the Issuing Bank to the
Borrower, shall be conclusive and binding for all purposes, absent manifest
error.

         Section 2.13.    Taxes.

         (a)     No Deduction for Certain Taxes.  Any and all payments by the
Borrower shall be made, in accordance with Section 2.09, free and clear of and
without deduction for any and all present or future taxes, levies, imposts,
deductions, charges or withholdings, and all liabilities with respect thereto,
excluding, in the case of each Bank, the Issuing Bank, and the Agent, taxes
imposed on its income, and franchise taxes imposed on it, by the jurisdiction
under the laws of which such Bank, the Issuing Bank, or the Agent (as the case
may be) is organized or any political subdivision of the jurisdiction (all such
non-excluded taxes, levies, imposts, deductions, charges, withholdings and
liabilities being hereinafter referred to as "Taxes") and, in the case of each
Bank and the Issuing Bank, Taxes by the jurisdiction of such Bank's Applicable
Lending Office or any political subdivision of such jurisdiction.  If the
Borrower shall be required by law to deduct any Taxes from or in respect of any
sum payable to any Bank, the Issuing Bank, or the Agent, (i) the sum payable
shall be increased as may be necessary so that, after making all required
deductions (including deductions applicable to additional sums payable under
this Section 2.13), such Bank, the Issuing Bank, or the Agent (as the case may
be) receives an amount equal to the sum it would have received had no such
deductions been made; provided, however, that if the Borrower's obligation to
deduct or withhold Taxes is caused solely by such Bank's, the Issuing Bank's,
or the Agent's failure to provide the forms described in paragraph (d) of this
Section 2.13 and such Bank, the Issuing Bank, or the Agent could have provided
such forms, no such increase shall be required; (ii) the Borrower shall make
such deductions; and (iii) the Borrower shall pay the full amount deducted to
the relevant taxation authority or other authority in accordance with
applicable law.

         (b)     Other Taxes.  In addition, the Borrower agrees to pay any
present or future stamp or documentary taxes or any other excise or property
taxes, charges or similar levies which arise from any payment made or from the
execution, delivery or registration of, or otherwise with respect to, this
Agreement, the Notes, or the other Credit Documents (hereinafter referred to as
"Other Taxes").

         (c)     Indemnification.  THE BORROWER INDEMNIFIES EACH BANK, THE
ISSUING BANK, AND THE AGENT FOR THE FULL AMOUNT OF TAXES OR OTHER TAXES
(INCLUDING, WITHOUT LIMITATION, ANY TAXES OR OTHER TAXES IMPOSED BY ANY
JURISDICTION ON AMOUNTS PAYABLE UNDER THIS SECTION 2.13) PAID BY SUCH BANK, THE
ISSUING BANK, OR THE AGENT (AS THE CASE MAY BE) AND ANY LIABILITY (INCLUDING
INTEREST AND EXPENSES) ARISING THEREFROM OR WITH RESPECT





                                      -36-
<PAGE>   43
THERETO, WHETHER OR NOT SUCH TAXES OR OTHER TAXES WERE CORRECTLY OR LEGALLY
ASSERTED.  EACH PAYMENT REQUIRED TO BE MADE BY THE BORROWER IN RESPECT OF THIS
INDEMNIFICATION SHALL BE MADE TO THE AGENT FOR THE BENEFIT OF ANY PARTY
CLAIMING SUCH INDEMNIFICATION WITHIN 30 DAYS FROM THE DATE THE BORROWER
RECEIVES WRITTEN DEMAND THEREFOR FROM THE AGENT ON BEHALF OF ITSELF AS AGENT,
THE ISSUING BANK, OR ANY SUCH BANK.  IF ANY BANK, THE AGENT, OR THE ISSUING
BANK RECEIVES A REFUND IN RESPECT OF ANY TAXES PAID BY THE BORROWER UNDER THIS
PARAGRAPH (C), SUCH BANK, THE AGENT, OR THE ISSUING BANK, AS THE CASE MAY BE,
SHALL PROMPTLY PAY TO THE BORROWER THE BORROWER'S SHARE OF SUCH REFUND.

         (d)     Foreign Bank Withholding Exemption.  Each Bank and Issuing
Bank that is not incorporated under the laws of the United States of America or
a state thereof agrees that it shall deliver to the Borrower and the Agent (i)
two duly completed copies of United States Internal Revenue Service Form 1001
or 4224 or successor applicable form, as the case may be, certifying in each
case that such Bank is entitled to receive payments under this Agreement and
the Notes payable to it, without deduction or withholding of any United States
federal income taxes, (ii) if applicable, an Internal Revenue Service Form W-8
or W-9 or successor applicable form, as the case may be, to establish an
exemption from United States backup withholding tax, and (iii) any other
governmental forms which are necessary or required under an applicable tax
treaty or otherwise by law to reduce or eliminate any withholding tax, which
have been reasonably requested by the Borrower.  Each Bank which delivers to
the Borrower and the Agent a Form 1001 or 4224 and Form W-8 or W-9 pursuant to
the next preceding sentence further undertakes to deliver to the Borrower and
the Agent two further copies of the said letter and Form 1001 or 4224 and Form
W-8 or W-9, or successor applicable forms, or other manner of certification, as
the case may be, on or before the date that any such letter or form expires or
becomes obsolete or after the occurrence of any event requiring a change in the
most recent letter and form previously delivered by it to the Borrower and the
Agent, and such extensions or renewals thereof as may reasonably be requested
by the Borrower and the Agent certifying in the case of a Form 1001 or 4224
that such Bank is entitled to receive payments under this Agreement without
deduction or withholding of any United States federal income taxes.  If an
event (including without limitation any change in treaty, law or regulation)
has occurred prior to the date on which any delivery required by the preceding
sentence would otherwise be required which renders all such forms inapplicable
or which would prevent any Bank from duly completing and delivering any such
letter or form with respect to it and such Bank advises the Borrower and the
Agent that it is not capable of receiving payments without any deduction or
withholding of United States federal income tax, and in the case of a Form W-8
or W-9, establishing an exemption from United States backup withholding tax,
such Bank shall not be required to





                                      -37-
<PAGE>   44
deliver such letter or forms.  The Borrower shall withhold tax at the rate and
in the manner required by the laws of the United States with respect to
payments made to a Bank failing to timely provide the requisite Internal
Revenue Service forms.


                                  ARTICLE III

                             CONDITIONS OF LENDING

         Section 3.01.    Conditions Precedent to Amendment and Restatement.
This Agreement shall be effective and the Existing Credit Agreement shall be
amended and restated as provided in this Agreement on the date the following
conditions precedent are met.

         (a)     Documentation.  On or before the day on which the initial
Borrowing is made or the initial Letters of Credit are issued, the Agent shall
have received the following duly executed by all the parties thereto, in form
and substance satisfactory to the Agent and the Banks, and, where applicable,
in sufficient copies for each Bank:

              (i)         This Agreement, the Notes, and the Guaranty made by
         The Stone Petroleum Corporation;

             (ii)         A favorable opinion of the Borrower's general
         counsel, dated as of September 26, 1996, and substantially in the form
         of the attached Exhibit H-1 covering the matters discussed in such
         Exhibit and such other matters as any Bank through the Agent may
         reasonably request;

            (iii)         A favorable opinion of Bracewell & Patterson, L.L.P.,
         counsel to the Agent, dated as of September 26, 1996, and
         substantially in the form of the attached Exhibit H-2;

             (iv)         A certificate of the Secretary or an Assistant
         Secretary of the Borrower certifying the existence of the Borrower, a
         certificate of good standing for the Borrower, the certificate of
         incorporation of the Borrower, the bylaws of the Borrower, the
         resolutions of the Board of Directors of the Borrower authorizing this
         Agreement and related transactions, and the incumbency and signatures
         of the officers of the Borrower authorized to execute this Agreement
         and related documents;

              (v)         A certificate of the Secretary or an Assistant
         Secretary of The Stone Petroleum Corporation certifying the existence
         of The Stone Petroleum Corporation,





                                      -38-
<PAGE>   45
         a certificate of good standing for The Stone Petroleum Corporation,
         the certificate of incorporation of The Stone Petroleum Corporation,
         the bylaws of The Stone Petroleum Corporation, the resolutions of the
         Board of Directors of The Stone Petroleum Corporation authorizing the
         Guaranty of The Stone Petroleum Corporation and related transactions,
         and the incumbency and signatures of the officers of The Stone
         Petroleum Corporation authorized to execute the Guaranty of The Stone
         Petroleum Corporation and related documents; and

             (vi)         Such other documents, governmental certificates,
         agreements, and lien searches as the Agent or any Bank may reasonably
         request.

         (b)     Payment of Fees.  On the date of this Agreement, the Borrower
shall have paid the fees required by Section 2.07(b) and all costs and expenses
which have been invoiced and are payable pursuant to Section 9.04.

         Section 3.02.  Condition to Initial Term Advances.  As a condition to
the making of the initial Term Advances only, the Borrower shall have
delivered, in a form satisfactory to the Agent, evidence that the  purchase of
the properties provided for in (A) the Purchase and Sale Agreement dated as of
August 28, 1996 (the "Vermilion Block 46 Purchase Agreement") between the
Borrower, as buyer, and Mobil Oil Exploration & Producing Southwest, Inc.
("Mobil"), as seller;  (B) the Purchase and Sale Agreement dated as of July 10,
1996 (the "Vermilion Block 131 Purchase Agreement"; collectively with the
Vermilion Block 46 Purchase Agreement referred to as the "Purchase Agreements")
between Flores & Rucks, Inc. ("Flores"), as buyer, and Mobil, as seller; (C)
the letter dated July 22, 1996 from Mobil to Chevron USA Inc. ("Chevron")
advising Chevron that Flores had entered into the Vermilion Block 131 Purchase
Agreement and giving Chevron an opportunity to exercise its preferential right
to purchase and whereby Chevron did exercise its preferential right to
purchase; (D) the  letter dated August 29, 1996 from Chevron to Mobil advising
Mobil that Chevron intends to assign to the Borrower the 50% interest in
Vermilion Block 131 that Chevron acquires from Mobil; and (E) the letter
agreement dated July 15, 1996 between Chevron and the Borrower concerning
Vermilion Block 131 was consummated contemporaneously with the making of the
initial Term Advances in accordance with the terms of the Purchase Agreements
and the letters referred to in the foregoing clauses (C) - (E).

         Section 3.03.    Conditions Precedent to All Borrowings.  The
obligation of each Bank to make an Advance on the occasion of each Borrowing
and of the Issuing Bank to issue, increase, or extend any Letter of Credit or
to convert an Existing Letter of Credit to a Letter of Credit shall be subject
to the further conditions precedent that on the date of such Borrowing or the
issuance, increase, or extension of such Letter of Credit or conversion of such
Existing Letter of Credit:





                                      -39-
<PAGE>   46
         (a)     the following statements shall be true (and each of the giving
of the applicable Notice of Borrowing or Letter of Credit Application and the
acceptance by the Borrower of the proceeds of such Borrowing or the issuance,
increase, or extension of such Letter of Credit or the conversion of such
Existing Letter of Credit shall constitute a representation and warranty by the
Borrower that on the date of such Borrowing, the issuance, increase, or
extension of such Letter of Credit or the conversion of such Existing Letter of
Credit, such statements are true):

              (i)         the representations and warranties contained in
         Article IV, the Security Documents, and the Guaranties are correct in
         all material respects on and as of the date of such Borrowing or the
         date of the issuance, increase, or extension of such Letter of Credit
         or the conversion of such Existing Letter of Credit, before and after
         giving effect to such Borrowing or to the issuance, increase, or
         extension of such Letter of Credit or the conversion of such Existing
         Letter of Credit and to the application of the proceeds from such
         Borrowing, as though made on and as of such date and

             (ii)         no Default has occurred and is continuing or would
         result from such Borrowing or from the application of the proceeds
         therefrom, from the issuance, increase, or extension of such Letter of
         Credit or from the conversion of such Existing Letter of Credit; and

         (b)     the Agent shall have received such other approvals, opinions,
or documents reasonably deemed necessary or desirable by any Bank as a result
of circumstances occurring after the date of this Agreement, as any Bank
through the Agent may reasonably request.


                                   ARTICLE IV

                         REPRESENTATIONS AND WARRANTIES

         The Borrower represents and warrants as follows:

         Section 4.01.    Corporate Existence; Subsidiaries.  The Borrower is a
corporation duly organized, validly existing, and in good standing under the
laws of Delaware and in good standing and qualified to do business in each
jurisdiction where its ownership or lease of property or conduct of its
business requires such qualification and where a failure to be qualified could
reasonably be expected to cause a Material Adverse Change.  Each Subsidiary of
the Borrower is a corporation duly organized, validly existing, and in good
standing under the laws of its jurisdiction of incorporation and in good
standing and qualified to do business in each jurisdiction where its ownership
or lease of property or conduct of its





                                      -40-
<PAGE>   47
business requires such qualification and where a failure to be qualified could
reasonably be expected to cause a Material Adverse Change.  The Borrower has no
Subsidiaries on the date of this Agreement other than the Subsidiaries listed
on the attached Schedule 4.01, and such Schedule lists the jurisdiction of
incorporation and the address of the principal office of each such Subsidiary
existing on the date of this Agreement.

         Section 4.02.    Corporate Power.  The execution, delivery, and
performance by the Borrower of this Agreement, the Notes, and the other Credit
Documents to which it is a party and by the Guarantors of the Guaranties and
the consummation of the transactions contemplated hereby and thereby (a) are
within the Borrower's and the Guarantors' corporate powers, (b) have been duly
authorized by all necessary corporate action, (c) do not contravene (i) the
Borrower's or any Guarantor's certificate or articles, as the case may be, of
incorporation or by-laws or (ii) any law or any contractual restriction binding
on or affecting the Borrower or any Guarantor, and (d) will not result in or
require the creation or imposition of any Lien prohibited by this Agreement.
At the time of each Borrowing, such Borrowing and the use of the proceeds of
such Borrowing will be within the Borrower's corporate powers, will have been
duly authorized by all necessary corporate action, (a) will not contravene (i)
the Borrower's certificate of incorporation or by-laws or (ii) any law or any
contractual restriction binding on or affecting the Borrower and (b) will not
result in or require the creation or imposition of any Lien prohibited by this
Agreement.

         Section 4.03.    Authorization and Approvals.  No authorization or
approval or other action by, and no notice to or filing with, any Governmental
Authority is required for the due execution, delivery, and performance by the
Borrower of this Agreement, the Notes, or the other Credit Documents to which
the Borrower is a party or by each Guarantor of its Guaranty or the
consummation of the transactions contemplated thereby.  At the time of each
Borrowing, no authorization or approval or other action by, and no notice to or
filing with, any Governmental Authority will be required for such Borrowing or
the use of the proceeds of such Borrowing.

         Section 4.04.    Enforceable Obligations.  This Agreement, the Notes,
and the other Credit Documents to which the Borrower is a party have been duly
executed and delivered by the Borrower and the Guaranties have been duly
executed and delivered by the Guarantors.  Each Credit Document is the legal,
valid, and binding obligation of the Borrower and each Guarantor which is a
party to it enforceable against the Borrower and each such Guarantor in
accordance with its terms, except as such enforceability may be limited by any
applicable bankruptcy, insolvency, reorganization, moratorium, or similar law
affecting creditors' rights generally and by general principles of equity.

         Section 4.05.    Financial Statements.  The audited consolidated
balance sheet of the Borrower and its Subsidiaries as at December 31, 1995, and
the related audited consolidated





                                      -41-
<PAGE>   48
statements of income, cash flow, and retained earnings of the Borrower and its
Subsidiaries for the fiscal year then ended, copies of which have been
furnished to each Bank, and the consolidated balance sheet of the Borrower and
its Subsidiaries as at June 30, 1996, and the related consolidated statements
of income, cash flow, and retained earnings of the Borrower and its
Subsidiaries for the six months then ended, copies of which have been furnished
to the Agent, fairly present, subject, in the case of the balance sheet as at
June 30, 1996, and said statements of income, cash flow, and retained earnings
for the six months then ended, to year-end audit adjustments, the consolidated
financial condition of the Borrower and its Subsidiaries as at such dates and
the consolidated results of the operations of the Borrower and its Subsidiaries
for the periods ended on such dates, and such consolidated balance sheets and
consolidated statements of income, cash flow, and retained earnings were
prepared in accordance with GAAP (or in compliance with the regulations
promulgated by the United States Securities and Exchange Commission).  Since
the date of the Financial Statements, no Material Adverse Change has occurred.

         Section 4.06.    True and Complete Disclosure.  All factual
information (excluding estimates) heretofore or contemporaneously furnished by
or on behalf of the Borrower or any of its Subsidiaries in writing to any Bank
or the Agent for purposes of or in connection with this Agreement, any other
Credit Document or any transaction contemplated hereby or thereby is (taken as
a whole) true and accurate in all material respects on the date as of which
such information is dated or certified and does not contain any untrue
statement of a material fact or omit to state any material fact necessary to
make the statements contained therein not misleading as of the date of this
Agreement.  All projections, estimates, and pro forma financial information
furnished by the Borrower were prepared on the basis of assumptions, data,
information, tests, or conditions believed to be reasonable at the time such
projections, estimates, and pro forma financial information were furnished.

         Section 4.07.    Litigation.  Set forth on Schedule 4.07 is an
accurate description of all of the Borrower's and its Subsidiaries' pending
litigation existing on the date of this Agreement which could reasonably be
expected to cause a Material Adverse Change.  There is no pending or, to the
best knowledge of the Borrower, threatened action or proceeding affecting the
Borrower or any of its Subsidiaries before any court, Governmental Agency or
arbitrator, which could reasonably be expected to cause a Material Adverse
Change or which purports to affect the legality, validity, binding effect, or
enforceability of this Agreement, any Note, or any other Credit Document.

         Section 4.08.    Use of Proceeds.  All Advances and Letters of Credit
shall be used to finance the acquisition of oil and gas reserves and for
general corporate purposes of the Borrower and its Subsidiaries, but in no
event for the payment of dividends or other distributions to the shareholders
of the Borrower.  The Borrower is not engaged in the business of extending
credit for the purpose of purchasing or carrying margin stock (within





                                      -42-
<PAGE>   49
the meaning of Regulation U).  No proceeds of any Advance will be used to
purchase or carry any margin stock in violation of Regulation G, T, U or X.

         Section 4.09.    Investment Company Act.  Neither the Borrower nor any
of its Subsidiaries is an "investment company" or a company "controlled" by an
"investment company" within the meaning of the Investment Company Act of 1940,
as amended.

         Section 4.10.    Public Utility Holding Company Act.  Neither the
Borrower nor any of its Subsidiaries is a "holding company," or a "Subsidiary
company" of a "holding company," or an "affiliate" of a "holding company" or of
a "Subsidiary company" of a "holding company," within the meaning of the Public
Utility Holding Company Act of 1935, as amended.

         Section 4.11.    Taxes.  Proper and accurate (in all material
respects) federal, state, local, and foreign tax returns, reports and
statements required to be filed (after giving effect to any extension granted
in the time of filing) by or on behalf of the Borrower, its Subsidiaries, or
any member of the Controlled Group (hereafter collectively called the "Tax
Group") have been duly filed on a timely basis or appropriate extensions have
been obtained with appropriate governmental agencies in all jurisdictions in
which such returns, reports, and statements are required to be filed, except
where the failure to so file would not be reasonably expected to cause a
Material Adverse Change; and all taxes (which are material in amount) and other
impositions due and payable have been timely paid prior to the date on which
any fine, penalty, interest, late charge, or loss may be added thereto for
non-payment thereof, except where contested in good faith by appropriate
proceedings.  The reserves for accrued taxes reflected in the financial
statements delivered to the Banks under this Agreement are adequate in the
aggregate for the payment of all unpaid taxes, whether or not disputed, for the
period ended as of the date thereof and for any period prior thereto, and for
which the Tax Group may be liable in its own right, as withholding agent or as
a transferee of the assets of, or successor to, any Person, except for such
taxes or reserves therefor, the failure to pay or provide for which does not
and could not cause a Material Adverse Change.  Timely payment of all material
sales and use taxes required by applicable law has been made by the Borrower
and all other members of the Tax Group.

         Section 4.12.    Pension Plans.  All Plans are in compliance in all
material respects with all applicable provisions of ERISA.  No Termination
Event has occurred with respect to any Plan, and each Plan has complied with
and been administered in all material respects with applicable provisions of
ERISA and the Code.  No "accumulated funding deficiency" (as defined in Section
302 of ERISA) has occurred and there has been no excise tax imposed under
Section 4971 of the Code.  No Reportable Event has occurred with respect to any
Multiemployer Plan, and each Multiemployer Plan has complied with and been
administered in all material respects with applicable provisions of ERISA and
the Code.  The present value





                                      -43-
<PAGE>   50
of all benefits vested under each Plan (based on the assumptions used to fund
such Plan) did not, as of the last annual valuation date applicable thereto,
exceed the value of the assets of such Plan allocable to such vested benefits.
Neither the Borrower nor any member of the Controlled Group has had a complete
or partial withdrawal from any Multiemployer Plan for which there is any
withdrawal liability.  As of the most recent valuation date applicable thereto,
neither the Borrower nor any member of the Controlled Group would become
subject to any liability under ERISA if the Borrower or any member of the
Controlled Group has received notice that any Multiemployer Plan is insolvent
or in reorganization.  Based upon GAAP existing as of the date of this
Agreement and current factual circumstances, the Borrower has no reason to
believe that the annual cost during the term of this Agreement to the Borrower
or any member of the Controlled Group for post-retirement benefits to be
provided to the current and former employees of the Borrower or any member of
the Controlled Group under Plans that are welfare benefit plans (as defined in
Section 3(a) of ERISA) could, in the aggregate, reasonably be expected to cause
a Material Adverse Change.

         Section 4.13.    Condition of Property; Casualties.  The Borrower and
each of its Subsidiaries has good and indefeasible title to all of its
Properties as is customary in the oil and gas industry in all material
respects, free and clear of all Liens except for Permitted Liens.  The material
Properties used or to be used in the continuing operations of the Borrower and
each of its Subsidiaries are in good repair, working order and condition.
Since the date of the Financial Statements, neither the business nor the
material properties of the Borrower and each of its Subsidiaries, taken as a
whole, has been materially and adversely affected as a result of any fire,
explosion, earthquake, flood, drought, windstorm, accident, strike or other
labor disturbance, embargo, requisition or taking of property or cancellation
of contracts, permits, or concessions by a Governmental Authority, riot,
activities of armed forces, or acts of God or of any public enemy.

         Section 4.14.    No Burdensome Restrictions; No Defaults.  Neither the
Borrower nor any of its Subsidiaries is a party to any indenture, loan, or
credit agreement or any lease or other agreement or instrument or subject to
any charter or corporate restriction or provision of applicable law or
governmental regulation which could reasonably be expected to cause a Material
Adverse Change.  The Borrower and the Guarantors are not in default under or
with respect to any contract, agreement, lease, or other instrument to which
the Borrower or any Guarantor is a party and which could reasonably be expected
to cause a Material Adverse Change.  Neither the Borrower nor any Guarantor has
received any notice of default under any material contract, agreement, lease,
or other instrument to which the Borrower or such Guarantor is a party.  No
Default has occurred and is continuing.





                                      -44-
<PAGE>   51
         Section 4.15.    Environmental Condition.

         (a)     Permits, Etc.  Except as set forth on Schedule 4.15(a), the
Borrower and its Subsidiaries (i) have obtained all Environmental Permits
necessary for the ownership and operation of their respective Properties and
the conduct of their respective businesses; (ii) have been and are in material
compliance with all terms and conditions of such Environmental Permits and with
all other material requirements of applicable Environmental Laws; (iii) have
not received notice of any material violation or alleged violation of any
Environmental Law or Environmental Permit; and (iv) are not subject to any
actual or contingent Environmental Claim, which could reasonably be expected to
cause a Material Adverse Change.

         (b)     Certain Liabilities.  Except as set forth on Schedule 4.15(b),
to the Borrower's actual knowledge, none of the present or previously owned or
operated Property of the Borrower or of any of its present or former
Subsidiaries, wherever located, (i) has been placed on or proposed to be placed
on the National Priorities List, the Comprehensive Environmental Response
Compensation Liability Information System list, or their state or local
analogs, or have been otherwise investigated, designated, listed, or identified
as a potential site for removal, remediation, cleanup, closure, restoration,
reclamation, or other response activity under any Environmental Laws; (ii) is
subject to a Lien, arising under or in connection with any Environmental Laws,
that attaches to any revenues or to any Property owned or operated by the
Borrower or any of its Subsidiaries, wherever located, which could reasonably
be expected to cause a Material Adverse Change; or (iii) has been the site of
any Release of Hazardous Substances or Hazardous Wastes from present or past
operations which has caused at the site or at any third-party site any
condition that has resulted in or could reasonably be expected to result in the
need for Response that would cause a Material Adverse Change.

         (c)     Certain Actions.  Without limiting the foregoing, (i) all
necessary notices have been properly filed, and no further action is required
under current Environmental Law as to each Response or other restoration or
remedial project undertaken by the Borrower, or its present or former
Subsidiaries on any of their presently or formerly owned or operated Property
and (ii) the present and, to the Borrower's best knowledge, future liability,
if any, of the Borrower and its Subsidiaries which could reasonably be expected
to arise in connection with requirements under Environmental Laws will not
result in a Material Adverse Change.

         Section 4.16.    Permits, Licenses, Etc.  The Borrower and its
Subsidiaries possess all permits, licenses, patents, patent rights or licenses,
trademarks, trademark rights, trade names rights and copyrights which are
material to the conduct of its business.  The Borrower and its





                                      -45-
<PAGE>   52
Subsidiaries manage and operate their business in all material respects in
accordance with all applicable Legal Requirements and good industry practices.

         Section 4.17.    Gas Contracts.  Neither the Borrower nor any of its
Subsidiaries, as of the date hereof, (a) is obligated in any material respect
by virtue of any prepayment made under any contract containing a "take-or-pay"
or "prepayment" provision or under any similar agreement to deliver
hydrocarbons produced from or allocated to any of the Borrower's consolidated
Oil and Gas Properties at some future date without receiving full payment
therefor at the time of delivery, or (b) has produced gas, in any material
amount, subject to, and none of the Borrower's consolidated Oil and Gas
Properties is subject to, balancing rights of third parties or subject to
balancing duties under governmental requirements, except as to such matters for
which the Borrower or its relevant Subsidiary has established monetary reserves
adequate in amount in accordance with GAAP to satisfy such obligations and has
segregated such reserves from its other accounts.


                                   ARTICLE V

                             AFFIRMATIVE COVENANTS

         So long as any Note or any amount under any Credit Document shall
remain unpaid, any Letter of Credit shall remain outstanding, or any Bank shall
have any Commitment hereunder, the Borrower agrees, unless the Majority Banks
shall otherwise consent in writing, to comply with the following covenants.

         Section 5.01.    Compliance with Laws, Etc.  The Borrower shall
comply, and cause each of its Subsidiaries to comply, in all material respects
with all Legal Requirements.  Without limiting the generality and coverage of
the foregoing, the Borrower shall comply, and shall cause each of its
Subsidiaries to comply, in all material respects, with all Environmental Laws
and all laws, regulations, or directives with respect to equal employment
opportunity and employee safety in all jurisdictions in which the Borrower, or
any of its Subsidiaries do business; provided, however, that this Section 5.01
shall not prevent the Borrower, or any of its Subsidiaries from, in good faith
and with reasonable diligence, contesting the validity or application of any
such laws or regulations by appropriate legal proceedings.

         Section 5.02.    Maintenance of Insurance.  The Borrower shall
maintain, and cause each of its Subsidiaries to maintain, insurance with
responsible and reputable insurance companies or associations in such amounts
and covering such risks as are usually carried by companies engaged in similar
businesses and owning similar properties in the same general areas in which the
Borrower or such Subsidiary operates, provided that the Borrower or such





                                      -46-
<PAGE>   53
Subsidiary may self-insure to the extent and in the manner normal for similarly
situated companies of like size, type and financial condition that are part of
a group of companies under common control.

         Section 5.03.    Preservation of Corporate Existence, Etc.  The
Borrower shall preserve and maintain, and cause each of its Subsidiaries to
preserve and maintain, its corporate existence, rights, franchises, and
privileges in the jurisdiction of its incorporation, and qualify and remain
qualified, and cause each such Subsidiary to qualify and remain qualified, as a
foreign corporation in each jurisdiction in which qualification is necessary or
desirable in view of its business and operations or the ownership of its
properties, and, in each case, where failure to qualify or preserve and
maintain its rights and franchises could reasonably be expected to cause a
Material Adverse Change; provided, however, that nothing herein contained shall
prevent any transaction permitted by Section 6.04.

         Section 5.04.    Payment of Taxes, Etc.  The Borrower shall pay and
discharge, and cause each of its Subsidiaries to pay and discharge, before the
same shall become delinquent, (a) all taxes, assessments, and governmental
charges or levies imposed upon it or upon its income or profits or Property
that are material in amount, prior to the date on which penalties attach
thereto and (b) all lawful claims that are material in amount which, if unpaid,
might by law become a Lien upon its Property; provided, however, that neither
the Borrower nor any such Subsidiary shall be required to pay or discharge any
such tax, assessment, charge, levy, or claim which is being contested in good
faith and by appropriate proceedings, and with respect to which reserves in
conformity with GAAP have been provided.

         Section 5.05.    Visitation Rights.  At any reasonable time and from
time to time, upon reasonable notice, the Borrower shall, and shall cause its
Subsidiaries to, permit the Agent and any Bank or any of its agents or
representatives thereof, to (a) examine and make copies of and abstracts from
the records and books of account of, and visit and inspect at its reasonable
discretion the properties of, the Borrower and any such Subsidiary, and (b)
discuss the affairs, finances and accounts of the Borrower and any such
Subsidiary with any of their respective officers or directors; provided
however, the Agent or the Bank for whose benefit such inspection and visitation
is made assumes sole responsibility for the condition of any property of the
Borrower or its Subsidiaries so visited and inspected, the access and egress
thereto (including, but not limited to wharves, docks, and helicopter landing
areas), and any vice or defect therein or thereon, and assumes all
responsibility for and hereby releases and indemnifies the Borrower, its
Affiliates, and their officers, directors, employees, and agents against any
claim for damage or injury to or by the Agent or such Bank (or the
representatives thereof) or to the Borrower's or its Subsidiaries' property
which may be occasioned by such inspection and visitation of the Borrower's or
its Subsidiaries' property.





                                      -47-
<PAGE>   54
         Section 5.06.    Reporting Requirements.  The Borrower shall furnish
to the Agent and each Bank:

         (a)     Annual Financials.  As soon as available and in any event not
later than 120 days after the end of each fiscal year of the Borrower, a copy
of the annual audit report for such year for the Borrower and its Subsidiaries,
including therein consolidated balance sheet of the Borrower and its
Subsidiaries as of the end of such fiscal year and consolidated statements of
income, cash flows, and retained earnings of the Borrower and its Subsidiaries
for such fiscal year, in each case certified by Arthur Andersen & Co. or other
independent certified public accountants of national standing and including any
management letters delivered by such accountants to the Borrower in connection
with such audit together with a certificate of such accounting firm to the
Agent and the Banks stating that, in the course of the regular audit of the
business of the Borrower and its Subsidiaries, which audit was conducted by
such accounting firm in accordance with generally accepted auditing standards,
such accounting firm has obtained no knowledge that a Default has occurred and
is continuing, or if, in the opinion of such accounting firm, a Default has
occurred and is continuing, a statement as to the nature thereof, together with
a Compliance Certificate executed by the Chief Financial Officer or Chief
Accounting Officer of the Borrower;

         (b)     Quarterly Financials.  As soon as available and in any event
not later than 90 days after the end of each of the first three quarters of
each fiscal year of the Borrower, the unaudited consolidated balance sheet of
Borrower and its Subsidiaries as of the end of such quarter and the
consolidated statements of income, cash flows, and retained earnings of the
Borrower and its Subsidiaries for the period commencing at the end of the
previous year and ending with the end of such quarter, all in reasonable detail
and duly certified with respect to such consolidated statements (subject to
year-end audit adjustments) by the Chief Financial Officer or Chief Accounting
Officer of the Borrower as having been prepared in accordance with GAAP (or in
compliance with the regulations promulgated by the United States Securities and
Exchange Commission), together with a Compliance Certificate executed by the
Chief Financial Officer or Chief Accounting Officer of the Borrower;

         (c)     Oil and Gas Reserve Reports.

              (i)         As soon as available but in any event on or before
         March 31 of each year, an engineering report in form and substance
         meeting the requirements of the Securities and Exchange Commission for
         financial reporting purposes, certified by Atwater Consultants, Ltd.,
         Cawley, Gillespie and Associates, Inc., or other firm of independent
         consulting petroleum engineers approved by the Agent, as fairly
         setting forth (A) the proved and producing, shut in, behind pipe, and
         undeveloped oil and gas reserves (separately classified as such)
         attributable to the Borrower's consolidated Oil and Gas Properties as
         of the last day of the previous year, (B) the aggregate





                                      -48-
<PAGE>   55
         present value, determined on the basis of stated pricing assumptions,
         of the future net income with respect to such Oil and Gas Properties,
         discounted at a stated per annum discount rate, and (C) projections of
         the annual rate of production, gross income, and net income with
         respect to such Oil and Gas Properties.

             (ii)         As soon as available but in any event on or before
         September 30 of each year, an internal engineering report in form and
         substance satisfactory to the Agent setting forth (A) the proved and
         producing, shut in, behind pipe, and undeveloped oil and gas reserves
         (separately classified as such) attributable to the Borrower's
         consolidated Oil and Gas Properties as of June 30 of such year (B) the
         aggregate present value, determined on the basis of stated pricing
         assumptions, of the future net income with respect to such Oil and Gas
         Properties, discounted at a stated per annum discount rate and (C)
         projections of the annual rate of production, gross income, and net
         income with respect to such Oil and Gas Properties.

            (iii)         The Agent and the Banks acknowledge that the Oil and
         Gas Reserve Reports contain certain proprietary information including
         geological and geophysical data, maps, models, and interpretations
         necessary for determining the Borrowing Base and the creditworthiness
         of the Borrower and the Guarantors.  The Agent and the Banks agree to
         maintain the confidentiality of such information except as required by
         law.  The Agent and the Banks may share such information with
         potential transferees of their interests under this Agreement if such
         transferees agree to maintain the confidentiality of such information.

         (d)     Defaults.  As soon as possible and in any event within five
days after the occurrence of each Default known to a Responsible Officer of the
Borrower or any of its Subsidiaries which is continuing on the date of such
statement, a statement of the Chief Financial Officer of the Borrower setting
forth the details of such Default and the actions which the Borrower has taken
and proposes to take with respect thereto;

         (e)     Securities Law Filings.  Except as provided in paragraphs (a)
and (b) above, promptly and in any event within 15 days after the sending or
filing thereof, copies of all proxy material, reports and other information
which the Borrower or any of its Subsidiary sends to or files with the United
States Securities and Exchange Commission or sends to any shareholder of the
Borrower;

         (f)     Termination Events.  As soon as possible and in any event (i)
within 30 days after the Borrower or any member of the Controlled Group knows
or has reason to know that any Termination Event described in clause (a) of the
definition of Termination Event with respect to any Plan has occurred, and (ii)
within 10 days after the Borrower or any of its Affiliates knows or has reason
to know that any other Termination Event with respect to any





                                      -49-
<PAGE>   56
Plan has occurred, a statement of the Chief Financial Officer of the Borrower
describing such Termination Event and the action, if any, which the Borrower or
such Affiliate proposes to take with respect thereto;

         (g)     Termination of Plans.  Promptly and in any event within two
Business Days after receipt thereof by the Borrower or any member of the
Controlled Group from the PBGC, copies of each notice received by the Borrower
or any such member of the Controlled Group of the PBGC's intention to terminate
any Plan or to have a trustee appointed to administer any Plan;

         (h)     Other ERISA Notices.  Promptly and in any event within five
Business Days after receipt thereof by the Borrower or any member of the
Controlled Group from a Multiemployer Plan sponsor, a copy of each notice
received by the Borrower or any member of the Controlled Group concerning the
imposition or amount of withdrawal liability pursuant to Section 4202 of ERISA;

         (i)     Environmental Notices.  Promptly upon the receipt thereof by
the Borrower or any of its Subsidiaries, a copy of any form of notice, summons
or citation received from the EPA, or any other Governmental Authority,
concerning (i) violations or alleged violations of Environmental Laws, which
seeks to impose liability therefor, (ii) any action or omission on the part of
the Borrower or any of its present or former Subsidiaries in connection with
Hazardous Waste or Hazardous Substances which could reasonably result in the
imposition of liability therefor, including without limitation any notice of
potential responsibility under CERCLA, or (iii) concerning the filing of a Lien
upon, against or in connection with the Borrower, its present or former
Subsidiaries, or any of their leased or owned Property, wherever located;

         (j)     Other Governmental Notices.  Promptly and in any event within
five Business Days after receipt thereof by the Borrower or any Subsidiary, a
copy of any notice, summons, citation, or proceeding seeking to modify in any
material respect, revoke, or suspend any material contract, license, or
Agreement with any Governmental Authority;

         (k)     Material Changes.  Prompt written notice of any condition or
event of which the Borrower has knowledge, which condition or event has
resulted or may reasonably be expected to result in (i) a Material Adverse
Change or (ii) a breach of or noncompliance with any material term, condition,
or covenant of any material contract to which the Borrower or any of its
Subsidiaries is a party or by which they or their properties may be bound;

         (l)     Disputes, Etc.  Prompt written notice of any claims,
proceedings, or disputes, or to the knowledge of the Borrower threatened, or
affecting the Borrower, or any of its Subsidiaries which, if adversely
determined, could reasonably be expected to cause a





                                      -50-
<PAGE>   57
Material Adverse Change, or any material labor controversy of which the
Borrower or any of its Subsidiaries has knowledge resulting in or reasonably
considered to be likely to result in a strike against the Borrower or any of
its Subsidiaries; and

         (m)     Other Information.  Such other information respecting the
business or Properties, or the condition or operations, financial or otherwise,
of the Borrower, or any of its Subsidiaries, as any Bank through the Agent may
from time to time reasonably request.  The Agent agrees to provide the Banks
with copies of any material notices and information delivered solely to the
Agent pursuant to the terms of this Agreement.

         Section 5.07.    Maintenance of Property.  Borrower shall, and shall
cause each of its Subsidiaries to, maintain their owned, leased, or operated
property, equipment, buildings, and fixtures in good condition and repair; and
shall abstain, and cause each of its Subsidiaries to abstain from, and not
knowingly or willfully permit the commission of waste or other injury,
destruction, or loss of natural resources, or the occurrence of pollution,
contamination, or any other condition in, on or about the owned or operated
property involving the Environment that could reasonably be expected to result
in Response activities the costs of which would exceed the accrual established
by Borrower or by any of its Subsidiaries for those purposes.

         Section 5.08.    New Subsidiaries.  Upon the creation of any new
Subsidiary permitted by this Agreement, the Borrower shall cause such
Subsidiary to execute and deliver to the Agent a Guaranty in the form of the
attached Exhibit C with such changes as the Agent may reasonably request and
evidence of corporate authority to enter into such Guaranty as the Agent may
reasonably request, including, without limitation, a legal opinion regarding
the enforceability of such Guaranty.

         Section 5.09.    Collateral.

         (a)     If any Term Advances are outstanding on December 15, 1996, the
Borrower shall deliver Lien Grant Documents to the Agent so that the Agent will
have for the benefit of the Banks an Acceptable Security Interest in at least
80% of the Borrowing Base value of the Borrower and its Subsidiaries' Oil and
Gas Properties included in the Borrowing Base most recently determined upon the
filing of any of the Security Documents included in such Lien Grant Documents.
The Agent agrees that it shall not record or file any of the Security Documents
delivered to the Agent pursuant to this paragraph unless any Term Advances are
outstanding on December 31, 1996.

         (b)     If at any time after December 31, 1996 the Term Advances have
not been repaid in full and the Agent for the benefit of the Banks does not
have an Acceptable Security Interest in at least 80% of the Borrowing Base
value of the Borrower's and its





                                      -51-
<PAGE>   58
Subsidiaries' Oil and Gas Properties included in the Borrowing Base most
recently determined, the Borrower shall grant the Agent an Acceptable Security
Interest in at least 80% of the Borrowing Base value of the Borrower's and its
Subsidiaries' Oil and Gas Properties included in the Borrowing Base most
recently determined.

         (c)     The Borrower agrees that, at any time after the Agent is
permitted to record or file the Security Documents, it shall promptly execute
and deliver all further agreements, and take all further action, that may be
necessary or that the Agent may reasonably request, in order to obtain an
Acceptable Security Interest under the Security Documents.

         Section 5.10.    Hedging Transactions.  If any Term Advances are
outstanding on December 31, 1996, the Borrower shall enter into hedging
transactions as reasonably agreed upon by the Agent and the Borrower within 30
days of such date with respect to up to 75% of the production from Oil and Gas
Properties included in the Borrowing Base.


                                   ARTICLE VI

                               NEGATIVE COVENANTS

         So long as any Note or any amount under any Credit Document shall
remain unpaid, any Letter of Credit shall remain outstanding, or any Bank shall
have any Commitment, the Borrower agrees, unless the Majority Banks otherwise
consent in writing, to comply with the following covenants.

         Section 6.01.    Liens, Etc.  The Borrower shall not create, assume,
incur, or suffer to exist, or permit any of its Subsidiaries to create, assume,
incur, or suffer to exist, any Lien on or in respect of any of its Property
whether now owned or hereafter acquired, or assign any right to receive income,
except that the Borrower and its Subsidiaries may create, incur, assume, or
suffer to exist:

         (a)     Liens securing the Obligations;

         (b)     Liens specified in the attached Schedule 6.01 on the Property
owned by the Borrower and its Subsidiaries which is specified therein securing
only the Debt disclosed to be secured by such Liens therein;

         (c)     Liens securing purchase money indebtedness permitted under
Section 6.02(c), provided that each such Lien encumbers only the property
acquired in connection with the creation of any such purchase money
indebtedness;





                                      -52-
<PAGE>   59
         (d)     Liens for taxes, assessments, or other governmental charges or
levies not yet due or that (provided foreclosure, distraint, sale, or other
similar proceedings shall not have been initiated) are being contested in good
faith by appropriate proceedings, and such reserve as may be required by GAAP
shall have been made therefor;

         (e)     Liens in favor of vendors, carriers, warehousemen, repairmen,
mechanics, workmen, materialmen, construction, or similar Liens arising by
operation of law in the ordinary course of business in respect of obligations
that are not yet due or that are being contested in good faith by appropriate
proceedings, provided such reserve as may be required by GAAP shall have been
made therefor;

         (f)     Liens to operators and non-operators under joint operating
agreements arising in the ordinary course of the business of the Borrower or
the relevant Subsidiary to secure amounts owing, which amounts are not yet due
or are being contested in good faith by appropriate proceedings, if such
reserve as may be required by GAAP shall have been made therefor;

         (g)     easements, rights-of-way, restrictions, and other similar
encumbrances, and minor defects in the chain of title that are customarily
accepted in the oil and gas financing industry, none of which interfere with
the ordinary conduct of the business of Borrower or materially detract from the
value or use of the Property to which they apply; and

         (h)     Liens of record under terms and provisions of the leases, unit
agreements, assignments, and other transfer of title documents in the chain of
title under which the Borrower or the relevant Subsidiary acquired the
Property, which have been disclosed to the Agent.

         Section 6.02.    Debts, Guaranties, and Other Obligations.  The
Borrower shall not, and shall not permit any of its Subsidiaries to, create,
assume, suffer to exist, or in any manner become or be liable in respect of,
any Debt except:

         (a)     Debt of the Borrower and its Subsidiaries under the Credit
Documents;

         (b)     Debt of the Borrower existing on the date of this Agreement
and disclosed in the attached Schedule 6.02 and any extensions, rearrangements,
and modifications thereof which do not increase the principal amount thereof or
the interest rate charged thereon above a market rate of interest;

         (c)     Debt existing in connection with Property or assets acquired
by the Borrower after date of this Agreement not to exceed $2,500,000.00 in
outstanding principal amount (excluding gas balancing liabilities assumed in
the acquisition of Oil and Gas Properties) and





                                      -53-
<PAGE>   60
in connection with the purchase of the Borrower's office building located at
625 E. Kaliste Saloom Rd., Lafayette, LA 70508 not to exceed $3,250,000.00 in
outstanding principal amount;

         (d)     Debt for borrowed money owed by any Subsidiary of the 
Borrower to the Borrower; and

         (e)     Debt in the form of obligations for the deferred purchase
price of property or services incurred in the ordinary course of business which
are not yet due and payable or are being contested in good faith by appropriate
proceedings and for which adequate reserves in accordance with GAAP have been
established.

         Section 6.03.    Agreements Restricting Liens and Distributions.  The
Borrower shall not, nor shall it permit any of its Subsidiaries to, enter into
any agreement (other than a Credit Document) which (a) except with respect to
specific Property encumbered to secure payment of Debt related to such
Property, imposes restrictions upon the creation or assumption of any Lien upon
its Properties, revenues or assets, whether now owned or hereafter acquired or
(b) limits Restricted Payments to or any advance by any of the Borrower's
Subsidiaries to the Borrower.

         Section 6.04.    Merger or Consolidation; Asset Sales.  The Borrower
shall not, and shall not permit any of its Subsidiaries to:

         (a)     merge or consolidate with or into any other Person, except
that the Borrower may merge with any of its wholly-owned Subsidiaries and any
of the Borrower's wholly-owned Subsidiaries may merge with another of the
Borrower's wholly-owned Subsidiaries, provided that immediately after giving
effect to any such proposed transaction no Default would exist and, in the case
of any such merger to which the Borrower is a party, the Borrower is the
surviving corporation; or

         (b)     sell, lease, transfer, or otherwise dispose of any of its
Property outside of the ordinary course of business, except (i) sales of assets
outside the ordinary course of business in an aggregate amount for any fiscal
year not to exceed $1,000,000.00 and (ii) sales of assets outside the ordinary
course of business which the Borrower has provided the Agent and the Banks with
10 days' advance notice of, provided that such proposed sales will not in the
judgment of the Majority Banks cause the aggregate outstanding amount of the
Revolving Advances plus the Letter of Credit Exposure to exceed the Borrowing
Base, after removing such assets from the Borrowing Base by subtracting from
the Borrowing Base the value of the assets proposed to be sold as determined
from the most recent information compiled by the Agent and the Banks in
connection with the most recent redetermination of the Borrowing Base, and the
Borrower agrees that immediately following any such sale the





                                      -54-
<PAGE>   61
Majority Banks will redetermine the Borrowing Base by so subtracting the value
of such assets sold from the Borrowing Base.

         Section 6.05.    Restricted Payments.  The Borrower shall not, and
shall not permit any of its Subsidiaries to, make or pay any Restricted Payment
other than Restricted Payments from a Subsidiary of the Borrower to the
Borrower.

         Section 6.06.    Investments.  The Borrower shall not, and shall not
permit any of its Subsidiaries to, make or permit to exist any loans, advances,
or capital contributions to, or make any investment in, or purchase or commit
to purchase any stock or other securities or evidences of indebtedness of or
interests in any Person, except:

         (a)     Liquid Investments;

         (b)     trade and customer accounts receivable which are for goods
furnished or services rendered in the ordinary course of business and are
payable in accordance with customary trade terms;

         (c)     ordinary course of business contributions, loans, or advances
to, or investments in, (i) a directly or indirectly wholly-owned Subsidiary of
the Borrower, or (ii) the Borrower;

         (d)     oil and gas farm-ins, oil and gas development joint ventures
and limited partnerships, and similar transactions, in each case in the
ordinary course of business; and

         (e)     investments not covered by clauses (a) through (d) above in an
aggregate outstanding amount not to exceed $2,000,000.00.

         Section 6.07.    Limitation on Speculative Hedging.  The Borrower
shall not, and shall not permit any of its Subsidiaries to, purchase, assume,
or hold a speculative position in any commodities market or futures market.
Borrower may continue its current production swap hedging program policy to
reduce price risk on quantities less than its total production.

         Section 6.08.    Affiliate Transactions.  Except as expressly
permitted elsewhere in this Agreement or otherwise approved in writing by the
Agent, and except as required or contemplated under the partnership agreements
existing on the date of this Agreement between the Borrower and its
Subsidiaries and their Affiliates as described in Schedule 6.08, the Borrower
shall not, and shall not permit any of its Subsidiaries to, make, directly or
indirectly:  (a) any investment in any Affiliate (other than a wholly-owned
Subsidiary of the Borrower); (b) any transfer, sale, lease, assignment, or
other disposal of any assets to any such Affiliate or any purchase or
acquisition of assets from any such Affiliate; or (c) any





                                      -55-
<PAGE>   62
arrangement or other transaction directly or indirectly with or for the benefit
of an such Affiliate (including without limitation, guaranties and assumptions
of obligations of an Affiliate); provided that the Borrower and its
Subsidiaries may enter into any arrangement or other transaction with any such
Affiliate providing for the leasing of property, the rendering or receipt of
services or the purchase or sale of inventory and other assets in the ordinary
course of business if the monetary or business consideration arising therefrom
would be substantially as advantageous to the Borrower and its Subsidiaries as
the monetary or business consideration which it would obtain in a comparable
arm's length transaction with a Person not such an Affiliate.

         Section 6.09.    Compliance with ERISA.  The Borrower shall not, and
shall not permit any of its Subsidiaries to, (a) terminate, or permit any
Affiliate to terminate, any Plan so as to result in any material (in the
opinion of the Majority Banks) liability of the Borrower or any of its
Affiliates to the PBGC or (b) permit to exist any occurrence of any Reportable
Event (as defined in Title IV of ERISA), or any other event or condition, which
presents a material (in the opinion of the Majority Banks) risk of such a
termination by the PBGC of any Plan.

         Section 6.10.    Maintenance of Ownership of Subsidiaries.  Except as
permitted by Section 6.04, the Borrower shall not, and shall not permit any of
its Subsidiaries to, sell or otherwise dispose of any shares of capital stock
of any of the Borrower's Subsidiaries or permit any Subsidiary to issue, sell,
or otherwise dispose of any shares of its capital stock or the capital stock of
any of the Borrower's Subsidiaries.

         Section 6.11     Sale-and-Leaseback.  The Borrower shall not, nor
shall it permit any of its Subsidiaries to, sell or transfer to a Person (other
than the Borrower or a Subsidiary of the Borrower) any property, whether now
owned or hereafter acquired, if at the time or thereafter the Borrower or a
Subsidiary of the Borrower shall lease as lessee such property or any part
thereof or other property which the Borrower or a Subsidiary of the Borrower
intends to use for substantially the same purpose as the property sold or
transferred except such transactions (a) incident to transactions permitted by
Section 6.04(b), and (b) from which arise lease obligations and other rental
obligations not exceeding $1,000,000.00 during any fiscal year of the Borrower.

         Section 6.12.    Change of Business.  The Borrower shall not, nor
shall it permit any of its Subsidiaries to, materially change the character of
their business as presently and normally conducted or engage in any type of
business not related to their business as presently and normally conducted.





                                      -56-
<PAGE>   63
         Section 6.13.    Current Ratio.  The Borrower shall not permit the
ratio of the Borrower's consolidated current assets to the Borrower's
consolidated current liabilities to be less than 1.00 to 1.00 as of the last
day of any fiscal quarter.

         Section 6.14.    Tangible Net Worth.  The Borrower shall not permit
the consolidated Tangible Net Worth of the Borrower to be less than the sum of
(a) $55,000,000.00, plus (b) an amount equal to 50% of the cumulative
consolidated quarterly Net Income of the Borrower from June 30, 1994, through
the end of the Borrower's most recently ended fiscal quarter, but excluding
consolidated Net Income for any fiscal quarter in which consolidated Net Income
is not positive, plus (c) an amount equal to 100% of the net cash proceeds from
any sale of stock or other equity interests in the Borrower since June 30,
1994.


                                  ARTICLE VII

                                    REMEDIES

         Section 7.01.    Events of Default.  The occurrence of any of the
following events shall constitute an "Event of Default" under any Credit
Document:

         (a)     Payment.  The Borrower shall fail to pay when due (i) any
interest or fees payable hereunder or under the Notes within five days after
the same becomes due and payable or (ii) any principal, reimbursements,
indemnifications, or other amounts (other than interest and fees described in
clause (i)) payable hereunder or under any other Credit Document;

         (b)     Representation and Warranties.  Any representation or warranty
made or deemed to be made (i) by the Borrower in this Agreement or in any other
Credit Document, (ii) by the Borrower (or any of its officers) in connection
with this Agreement or any other Credit Document, or (iii) by any Subsidiary of
the Borrower in any Credit Document shall prove to have been incorrect in any
material respect when made or deemed to be made;

         (c)     Covenant Breaches.  (i) The Borrower shall (A) fail to perform
or observe any covenant contained in Section 5.01, 5.02, 5.05, 5.06, 5.07,
5.08, 5.09, or Article VI of this Agreement or (B) fail to perform or observe
any other term or covenant set forth in this Agreement or in any other Credit
Document which is not covered by clause (i)(A) above or any other provision of
this Section 7.01 if such failure shall remain unremedied for 30 days after the
earlier of written notice of such default shall have been given to such Person
by the Agent or any Bank or such Person's actual knowledge of such default or
(ii) any Guarantor shall fail to perform or observe any covenant contained in
its Guaranty;





                                      -57-
<PAGE>   64
         (d)     Cross-Defaults.  (i) The Borrower or any its Subsidiaries
shall fail to pay any principal of or premium or interest on its Debt which is
outstanding in a principal amount of at least $500,000.00 individually or when
aggregated with all such Debt of the Borrower or its Subsidiaries so in default
(but excluding Debt evidenced by the Notes) when the same becomes due and
payable (whether by scheduled maturity, required prepayment, acceleration,
demand or otherwise), and such failure shall continue after the applicable
grace period, if any, specified in the agreement or instrument relating to such
Debt; (ii) any other event shall occur or condition shall exist under any
agreement or instrument relating to Debt which is outstanding in a principal
amount of at least $500,000.00 individually or when aggregated with all such
Debt of the Borrower and its Subsidiaries so in default, and shall continue
after the applicable grace period, if any, specified in such agreement or
instrument, if the effect of such event or condition is to accelerate, or to
permit the acceleration of, the maturity of such Debt; or (iii) any such Debt
shall be declared to be due and payable, or required to be prepaid (other than
by a regularly scheduled required prepayment), prior to the stated maturity
thereof;

         (e)     Insolvency.  The Borrower or any of its Subsidiaries shall
generally not pay its debts as such debts 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 any proceeding shall be instituted by or
against the Borrower or any of its Subsidiaries 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 of
debtors, or seeking the entry of an order for relief or the appointment of a
receiver, trustee or other similar official for it or for any substantial part
of its property and, in the case of any such proceeding instituted against the
Borrower or any such Subsidiary, either such proceeding shall remain
undismissed for a period of 30 days or any of the actions sought in such
proceeding shall occur; or the Borrower or any of its Subsidiaries shall take
any corporate action to authorize any of the actions set forth above in this
paragraph (e);

         (f)     Judgments.  Any judgment or order for the payment of money in
excess of $500,000.00 shall be rendered against the Borrower or any of its
Subsidiaries and either (i) enforcement proceedings shall have been commenced
by any creditor upon such judgment or order or (ii) there shall be any period
of 30 consecutive days during which a stay of enforcement of such judgment or
order, by reason of a pending appeal or otherwise, shall not be in effect;

         (g)     Termination Events.  Any Termination Event with respect to a
Plan shall have occurred, and, 30 days after notice thereof shall have been
given to the Borrower by the Agent, (i) such Termination Event shall not have
been corrected and (ii) the then present value of such Plan's vested benefits
exceeds the then current value of assets accumulated in





                                      -58-
<PAGE>   65
such Plan by more than the amount of $500,000.00 (or in the case of a
Termination Event involving the withdrawal of a "substantial employer" (as
defined in Section 4001(a)(2) of ERISA), the withdrawing employer's
proportionate share of such excess shall exceed such amount);

         (h)     Plan Withdrawals.  The Borrower or any member of the
Controlled Group as employer under a Multiemployer Plan shall have made a
complete or partial withdrawal from such Multiemployer Plan and the plan
sponsor of such Multiemployer Plan shall have notified such withdrawing
employer that such employer has incurred a withdrawal liability in an annual
amount exceeding $500,000.00;

         (i)     Borrowing Base.  Any failure to cure any Borrowing Base
deficiency in accordance with Section 2.04, including any failure of the
dedicated cash flow from the production of the Borrower's and its Subsidiaries'
Oil and Gas Properties to cure the Borrowing Base deficiency within the time
period specified by and in accordance with Section 2.04(b);

         (j)     Guaranties.  Any provision of any Guaranty shall for any
reason cease to be valid and binding on the applicable Guarantor or the
applicable Guarantor shall so state in writing;

         (k)     Security Documents.  Any Security Document shall at any time
and for any reason cease to create the Lien on the property purported to be
subject to such agreement in accordance with the terms of such agreement, or
cease to be in full force and effect, or shall be contested by the Borrower or
any Guarantor;

         (l)     Change of Control.  (i)  As a result of one or more
transactions after the date of this Agreement, any "person" or "group" of
persons shall have "beneficial ownership" of more than 20% of the outstanding
common stock of the Borrower (within the meaning of Section 13(d) or 14(d) of
the Securities Exchange Act of 1934, as amended, and the applicable rules and
regulations thereunder), provided that the relationships among the officers and
directors of the Borrower and among the respective shareholders of the Borrower
on the date of this Agreement shall not be deemed to constitute all or any
combination of them as a "group" or (ii) during any period of 12 consecutive
months, beginning with and after the date of this Agreement, individuals who at
the beginning of such 12-month period were directors of the Borrower shall
cease for any reason to constitute a majority of the board of directors of the
Borrower at any time during such period; or

         (m)     Management.  If any two of James H. Stone, D. Peter Canty,
Michael L. Finch, or James H. Prince shall cease to serve actively as officers
of the Borrower by reason





                                      -59-
<PAGE>   66
of resignation, action by the board of directors or owners of the Borrower, or
otherwise (other than by death or permanent disability.)

         Section 7.02.    Optional Acceleration of Maturity.  If any Event of
Default (other than an Event of Default pursuant to paragraph (e) of Section
7.01) shall have occurred and be continuing, then, and in any such event,

         (a)     the Agent (i) shall at the request, or may with the consent,
of the Majority Banks, by notice to the Borrower, declare the obligation of
each Bank and the Issuing Bank to make extensions of credit hereunder,
including making Advances and issuing Letters of Credit, to be terminated,
whereupon the same shall forthwith terminate, and (ii) shall at the request, or
may with the consent, of the Majority Banks, by notice to the Borrower, declare
all principal, interest, fees, reimbursements, indemnifications, and all other
amounts payable under this Agreement, the Notes, and the other Credit Documents
to be forthwith due and payable, whereupon all such amounts shall become and be
forthwith due and payable in full, without notice of intent to demand, demand,
presentment for payment, notice of nonpayment, protest, notice of protest,
grace, notice of dishonor, notice of intent to accelerate, notice of
acceleration, and all other notices, all of which are hereby expressly waived
by the Borrower;

         (b)     the Borrower shall, on demand of the Agent at the request or
with the consent of the Majority Banks, deposit with the Agent into the Cash
Collateral Account an amount of cash equal to the Letter of Credit Exposure as
security for the Obligations; and

         (c)     the Agent shall at the request of, or may with the consent of,
the Majority Banks proceed to enforce its rights and remedies under the
Security Documents, the Guaranties, and any other Credit Document for the
ratable benefit of the Banks by appropriate proceedings.

         Section 7.03.    Automatic Acceleration of Maturity.  If any Event of
Default pursuant to paragraph (e) of Section 7.01 shall occur,

         (a)     (i) the obligation of each Bank and the Issuing Bank to make
extensions of credit hereunder, including making Advances and issuing Letters
of Credit, shall terminate, and (ii) all principal, interest, fees,
reimbursements, indemnifications, and all other amounts payable under this
Agreement, the Notes, and the other Credit Documents shall become and be
forthwith due and payable in full, without notice of intent to demand, demand,
presentment for payment, notice of nonpayment, protest, notice of protest,
grace, notice of dishonor, notice of intent to accelerate, notice of
acceleration, and all other notices, all of which are hereby expressly waived
by the Borrower;





                                      -60-
<PAGE>   67
         (b)     the Borrower shall deposit with the Agent into the Cash
Collateral Account an amount of cash equal to the outstanding Letter of Credit
Exposure as security for the Obligations; and

         (c)     the Agent shall at the request of, or may with the consent of,
the Majority Banks proceed to enforce its rights and remedies under the
Security Documents, the Guaranties, and any other Credit Document for the
ratable benefit of the Banks by appropriate proceedings.

         Section 7.04.    Right of Set-off.  Upon the occurrence and during the
continuance of any Event of Default, the Agent and each Bank is hereby
authorized at any time and from time to time, to the fullest extent permitted
by law, to set off and apply 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 the Agent or such Bank to or for the credit or the account of the
Borrower against any and all of the obligations of the Borrower now or
hereafter existing under this Agreement, the Notes held by the Agent or such
Bank, and the other Credit Documents, irrespective of whether or not the Agent
or such Bank shall have made any demand under this Agreement, such Notes, or
such other Credit Documents, and although such obligations may be unmatured.
The Agent and each Bank agrees to promptly notify the Borrower after any such
set-off and application made by the Agent or such Bank, provided that the
failure to give such notice shall not affect the validity of such set-off and
application.  The rights of the Agent and each Bank under this Section 7.04 are
in addition to any other rights and remedies (including, without limitation,
other rights of set-off) which the Agent or such Bank may have.
Notwithstanding the foregoing, First National Bank of Commerce may not set off
and apply any accounts held by the Affiliate of First National Bank of Commerce
in Lafayette so long as the funds in such accounts represent unpaid amounts due
to royalty and working interest holders (including limited partnerships
sponsored by the Borrower and its Subsidiaries) and other segregated funds of
the Borrower and its Subsidiaries (but not any general corporate funds of the
Borrower or its Subsidiaries).

         Section 7.05.    Actions Under Credit Documents.  Following an Event
of Default, the Agent shall at the request, or may with the consent, of the
Majority Banks, take any and all actions permitted under the other Credit
Documents, including enforcing it rights under the Security Documents and the
Guaranty for the ratable benefit of the Banks.

         Section 7.06.    Non-exclusivity of Remedies.  No remedy conferred
upon the Agent is intended to be exclusive of any other remedy, and each remedy
shall be cumulative of all other remedies existing by contract, at law, in
equity, by statute or otherwise.





                                      -61-
<PAGE>   68

                                  ARTICLE VIII

                         THE AGENT AND THE ISSUING BANK

         Section 8.01.    Authorization and Action.  Each Bank hereby appoints
and authorizes the Agent to take such action as agent on its behalf and to
exercise such powers under this Agreement as are delegated to the Agent by the
terms hereof and of the other Credit Documents, together with such powers as
are reasonably incidental thereto.  As to any matters not expressly provided
for by this Agreement or any other Credit Document (including, without
limitation, enforcement or collection of the Notes), the Agent shall not be
required to exercise any discretion or take any action, but shall be required
to act or to refrain from acting (and shall be fully protected in so acting or
refraining from acting) upon the instructions of the Majority Banks, and such
instructions shall be binding upon all Banks and all holders of Notes;
provided, however, that the Agent shall not be required to take any action
which exposes the Agent to personal liability or which is contrary to this
Agreement, any other Credit Document, or applicable law.

         Section 8.02.    Agent's Reliance, Etc.  Neither the Agent nor any of
its directors, officers, agents, or employees shall be liable for any action
taken or omitted to be taken (INCLUDING THE AGENT'S OWN NEGLIGENCE) by it or
them under or in connection with this Agreement or the other Credit Documents,
except for its or their own gross negligence or willful misconduct.  Without
limitation of the generality of the foregoing, the Agent:  (a) may treat the
payee of any Note as the holder thereof until the Agent receives written notice
of the assignment or transfer thereof signed by such payee and in form
satisfactory to the Agent; (b) may consult with legal counsel (including
counsel for the Borrower), independent public accountants, and other experts
selected by it and shall not be liable for any action taken or omitted to be
taken in good faith by it in accordance with the advice of such counsel,
accountants, or experts; (c) makes no warranty or representation to any Bank
and shall not be responsible to any Bank for any statements, warranties, or
representations made in or in connection with this Agreement or the other
Credit Documents; (d) shall not have any duty to ascertain or to inquire as to
the performance or observance of any of the terms, covenants or conditions of
this Agreement or any other Credit Document on the part of the Borrower or its
Subsidiaries or to inspect the property (including the books and records) of
the Borrower or its Subsidiaries; (e) shall not be responsible to any Bank for
the due execution, legality, validity, enforceability, genuineness,
sufficiency, or value of this Agreement or any other Credit Document; and (f)
shall incur no liability under or in respect of this Agreement or any other
Credit Document by acting upon any notice, consent, certificate, or other
instrument or writing (which may be by telecopier or telex) believed by it to
be genuine and signed or sent by the proper party or parties.





                                      -62-
<PAGE>   69
         Section 8.03.    The Agent and Its Affiliates.  With respect to its
Commitments, the Advances made by it and the Notes issued to it, the Agent
shall have the same rights and powers under this Agreement as any other Bank
and may exercise the same as though it were not the Agent.  The term "Bank" or
"Banks" shall, unless otherwise expressly indicated, include the Agent in its
individual capacity.  The Agent and its Affiliates may accept deposits from,
lend money to, act as trustee under indentures of, and generally engage in any
kind of business with, the Borrower or any of its Subsidiaries, and any Person
who may do business with or own securities of the Borrower or any such
Subsidiary, all as if the Agent were not an agent hereunder and without any
duty to account therefor to the Banks.

         Section 8.04.    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 and the Interim Financial Statements and such
other documents and information as it has deemed appropriate, made its own
credit analysis and decision to enter into this Agreement.  Each Bank also
acknowledges that it shall, 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.

         Section 8.05.    Indemnification.  THE BANKS SEVERALLY AGREE TO
INDEMNIFY THE AGENT AND THE ISSUING BANK AND EACH AFFILIATE THEREOF AND THEIR
RESPECTIVE DIRECTORS, OFFICERS, EMPLOYEES, AND AGENTS (TO THE EXTENT NOT
REIMBURSED BY THE BORROWER), ACCORDING TO THEIR RESPECTIVE PRO RATA SHARES FROM
AND AGAINST ANY AND ALL LIABILITIES, OBLIGATIONS, LOSSES, DAMAGES, PENALTIES,
ACTIONS, JUDGMENTS, SUITS, COSTS, EXPENSES, OR DISBURSEMENTS OF ANY KIND OR
NATURE WHATSOEVER WHICH MAY BE IMPOSED ON, INCURRED BY, OR ASSERTED AGAINST THE
AGENT AND THE ISSUING BANK IN ANY WAY RELATING TO OR ARISING OUT OF THIS
AGREEMENT OR ANY ACTION TAKEN OR OMITTED BY THE AGENT OR THE ISSUING BANK UNDER
THIS AGREEMENT OR ANY OTHER CREDIT DOCUMENT (INCLUDING THE AGENT'S AND THE
ISSUING BANK'S OWN NEGLIGENCE), PROVIDED THAT NO BANK SHALL BE LIABLE FOR ANY
PORTION OF SUCH LIABILITIES, OBLIGATIONS, LOSSES, DAMAGES, PENALTIES, ACTIONS,
JUDGMENTS, SUITS, COSTS, EXPENSES, OR DISBURSEMENTS RESULTING FROM THE AGENT'S
AND THE ISSUING BANK'S GROSS NEGLIGENCE OR WILLFUL MISCONDUCT.  WITHOUT
LIMITATION OF THE FOREGOING, EACH BANK AGREES TO REIMBURSE THE AGENT PROMPTLY
UPON DEMAND FOR ITS RATABLE SHARE OF ANY OUT-OF-POCKET EXPENSES (INCLUDING
COUNSEL FEES) INCURRED BY THE AGENT IN CONNECTION WITH THE PREPARATION,
EXECUTION,





                                      -63-
<PAGE>   70
DELIVERY, ADMINISTRATION, MODIFICATION, AMENDMENT, OR ENFORCEMENT (WHETHER
THROUGH NEGOTIATIONS, LEGAL PROCEEDINGS, OR OTHERWISE) OF, OR LEGAL ADVICE IN
RESPECT OF RIGHTS OR RESPONSIBILITIES UNDER, THIS AGREEMENT OR ANY OTHER CREDIT
DOCUMENT, TO THE EXTENT THAT THE AGENT IS NOT REIMBURSED FOR SUCH BY THE
BORROWER.

         Section 8.06.    Successor Agent and Issuing Bank.  The Agent or the
Issuing Bank may resign at any time by giving written notice thereof to the
Banks and the Borrower and may be removed at any time with or without cause by
the Majority Banks upon receipt of written notice from the Majority Banks to
such effect.  Upon receipt of notice of any such resignation or removal, the
Majority Banks shall have the right to appoint a successor Agent or Issuing
Bank only with the consent of the Borrower, which consent shall not be
unreasonably withheld.  If no successor Agent or Issuing Bank shall have been
so appointed by the Majority Banks with the consent of the Borrower, and shall
have accepted such appointment, within 30 days after the retiring Agent's or
Issuing Bank's giving of notice of resignation or the Majority Banks' removal
of the retiring Agent or Issuing Bank, then the retiring Agent or Issuing Bank
may, on behalf of the Banks and the Borrower, appoint a successor Agent or
Issuing Bank, which shall be, in the case of a successor agent, a commercial
bank organized under the laws of the United States of America or of any State
thereof and having a combined capital and surplus of at least $500,000,000.00
and, in the case of the Issuing Bank, a Bank.  Upon the acceptance of any
appointment as Agent or Issuing Bank by a successor Agent or Issuing Bank, such
successor Agent or Issuing Bank shall thereupon succeed to and become vested
with all the rights, powers, privileges, and duties of the retiring Agent or
Issuing Bank, and the retiring Agent or Issuing Bank shall be discharged from
its duties and obligations under this Agreement and the other Credit Documents,
except that the retiring Issuing Bank shall remain the Issuing Bank with
respect to any Letters of Credit outstanding on the effective date of its
resignation or removal and the provisions affecting the Issuing Bank with
respect to such Letters of Credit shall inure to the benefit of the retiring
Issuing Bank until the termination of all such Letters of Credit.  After any
retiring Agent's or Issuing Bank's resignation or removal hereunder as Agent or
Issuing Bank, the provisions of this Article VIII shall inure to its benefit as
to any actions taken or omitted to be taken by it while it was Agent or Issuing
Bank under this Agreement and the other Credit Documents.





                                      -64-
<PAGE>   71
                                   ARTICLE IX

                                 MISCELLANEOUS

         Section 9.01.    Amendments, Etc.  No amendment or waiver of any
provision of this Agreement, the Notes, or any other Credit Document, nor
consent to any departure by the Borrower or any Guarantor therefrom, shall in
any event be effective unless the same shall be in writing and signed by the
Majority Banks and the Borrower, and then such waiver or consent shall be
effective only in the specific instance and for the specific purpose for which
given; provided, however, that no amendment, waiver, or consent shall, unless
in writing and signed by all the Banks, do any of the following:  (a) waive any
of the conditions specified in Section 3.01, 3.02, or 3.03, (b) increase the
Revolving Commitment or the Term Commitment of the Banks, (c) reduce the
principal of, or interest on, the Notes or any fees or other amounts payable
hereunder or under any other Credit Document, (d) postpone any date fixed for
any payment of principal of, or interest on, the Notes or any fees or other
amounts payable hereunder or extend the Revolving Maturity Date or the Term
Maturity Date, (e) change the percentage of Banks which shall be required for
the Banks or any of them to take any action hereunder or under any other Credit
Document, (f) amend Section 2.10 or this Section 9.01, (g) amend the definition
of "Majority Banks," (h) release any Guarantor from its obligations under any
Guaranty, or (i) release any collateral securing the Obligations; and provided,
further, that no amendment, waiver or consent shall, unless in writing and
signed by the Agent or the Issuing Bank in addition to the Banks required above
to take such action, affect the rights or duties of the Agent or the Issuing
Bank, as the case may be, under this Agreement or any other Credit Document.

         Section 9.02.    Notices, Etc.  All notices and other communications
shall be in writing (including, without limitation, telecopy or telex) and
mailed by certified mail, return receipt requested, telecopied, telexed, hand
delivered, or delivered by a nationally recognized overnight courier, at the
address for the appropriate party specified in Schedule 1 or at such other
address as shall be designated by such party in a written notice to the other
parties.  All such notices and communications shall, when so mailed,
telecopied, telexed, or hand delivered or delivered by a nationally recognized
overnight courier, be effective when received if mailed, when telecopy
transmission is completed, when confirmed by telex answer-back, or when
delivered by such messenger or courier, respectively, except that notices and
communications to the Agent pursuant to Article II or VIII shall not be
effective until received by the Agent.

         Section 9.03.    No Waiver; Remedies.  No failure on the part of any
Bank, the Agent, or the Issuing Bank to exercise, and no delay in exercising,
any right hereunder or under any Note shall operate as a waiver thereof; nor
shall any single or partial exercise of any such





                                      -65-
<PAGE>   72
right preclude any other or further exercise thereof or the exercise of any
other right.  The remedies herein provided are cumulative and not exclusive of
any remedies provided by law.

         Section 9.04.    Costs and Expenses.  The Borrower agrees to pay on
demand (a) all reasonable out-of-pocket costs and expenses of the Agent in
connection with the preparation, execution, delivery, administration,
modification, and amendment of this Agreement, the Notes, the Guaranties, and
the other Credit Documents including, without limitation, the reasonable fees
and out-of-pocket expenses of counsel for the Agent with respect to advising
the Agent as to its rights and responsibilities under this Agreement, and (b)
all out-of-pocket costs and expenses, if any, of the Agent, the Issuing Bank,
and each Bank (including, without limitation, reasonable counsel fees and
expenses of the Agent, the Issuing Bank, and each Bank) in connection with the
enforcement (whether through negotiations, legal proceedings, or otherwise) of
this Agreement, the Notes, the Guaranties, and the other Credit Documents.

         Section 9.05.    Binding Effect.  This Agreement shall become
effective when it shall have been executed by the Borrower and the Agent, and
when the Agent shall have, as to each Bank, either received a counterpart
hereof executed by such Bank or been notified by such Bank that such Bank has
executed it and thereafter shall be binding upon and inure to the benefit of
the Borrower, the Agent, the Issuing Bank, and each Bank and their respective
successors and assigns, except that the Borrower shall not have the right to
assign its rights or delegate its duties under this Agreement or any interest
in this Agreement without the prior written consent of each Bank.

         Section 9.06.    Bank Assignments and Participations.

         (a)     Assignments.  Any Bank may assign to one or more banks or
other entities all or any portion of its rights and obligations under this
Agreement (including, without limitation, all or a portion of its Commitments,
the Advances owing to it, the Notes held by it, and the participation interest
in the Letter of Credit Obligations held by it); provided, however, that (i)
each such assignment shall be of a constant, and not a varying, percentage of
all of such Bank's rights and obligations under this Agreement, (ii) the amount
of the Commitments and Advances of such Bank being assigned pursuant to each
such assignment (determined as of the date of the Assignment and Acceptance
with respect to such assignment) shall be, if to an entity other than a Bank,
not less than $5,000,000.00 and shall be an integral multiple of $1,000,000.00,
(iii) each such assignment shall be to an Eligible Assignee, (iv) 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,
together with the Notes subject to such assignment, and (v) each Eligible
Assignee (other than the Eligible Assignee of the Agent) shall pay to the Agent
a $2,500 administrative fee.  Upon such execution, delivery, acceptance and
recording, from and after the effective date specified in each Assignment and
Acceptance, which effective date shall be at least three Business Days





                                      -66-
<PAGE>   73
after the execution thereof, (A) the assignee thereunder shall be a party
hereto for all purposes 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 (B) such Bank
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 or the remaining portion of
such Bank's rights and obligations under this Agreement, such Bank shall cease
to be a party hereto).

         (b)     Term of Assignments.  By executing and delivering an
Assignment and Acceptance, the Bank thereunder and the assignee thereunder
confirm to and agree with each other and the other parties hereto as follows:
(i) other than as provided in such Assignment and Acceptance, such 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 of value of this Agreement or any other instrument or document
furnished pursuant hereto; (ii) such Bank makes no representation or warranty
and assumes no responsibility with respect to the financial condition of the
Borrower or the Guarantors or the performance or observance by the Borrower or
the Guarantors 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 4.05 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 upon the Agent, such 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 under this
Agreement as are delegated to the Agent by the terms hereof, together with such
powers as are reasonably incidental thereto; and (vi) such assignee agrees that
it will perform in accordance with their terms all of the obligations which by
the terms of this Agreement are required to be performed by it as a Bank.

         (c)     The Register.  The Agent shall maintain at its address
referred to in Section 9.02 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 Commitments 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 Borrower, the Agent, the Issuing Bank, and the Banks
may treat each Person whose name is recorded in the Register as a Bank
hereunder for all





                                      -67-
<PAGE>   74
purposes of this Agreement.  The Register shall be available for inspection by
the Borrower or any Bank at any reasonable time and from time to time upon
reasonable prior notice.

         (d)     Procedures.  Upon its receipt of an Assignment and Acceptance
executed by a Bank and an Eligible Assignee, together with the Notes subject to
such assignment, the Agent shall, if such Assignment and Acceptance has been
completed and is in substantially the form of the attached Exhibit A, (i)
accept such Assignment and Acceptance, (ii) record the information contained
therein in the Register, and (iii) give prompt notice thereof to the Borrower.
Within five Business Days after its receipt of such notice, the Borrower shall
execute and deliver to the Agent in exchange for the surrendered Notes (A) a
new Revolving Note to the order of such Eligible Assignee in an amount equal to
the Revolving Commitment assumed by it pursuant to such Assignment and
Acceptance and a new Term Note to the order of such Eligible Assignee in an
amount equal to the outstanding principal amount of the Term Advances assigned
to such Eligible Assignee and (B) if such Bank has retained any Revolving
Commitment hereunder, a new Revolving Note to the order of such Bank in an
amount equal to the Revolving Commitment retained by it hereunder and a new
Term Note to the order of such Bank in an amount equal to the outstanding
principal amount of the Term Advances retained by such Bank.  Such new Notes
shall be dated the effective date of such Assignment and Acceptance and shall
otherwise be in substantially the form of the attached Exhibit D-1 and D-2,
respectively.

         (e)     Participations.  Each Bank may sell participations to one or
more banks or other entities in or to all or a portion of its rights and
obligations under this Agreement (including, without limitation, all or a
portion of its Commitments, the Advances owing to it, its participation
interest in the Letter of Credit Obligations, and the Notes held by it);
provided, however, that (i) such Bank's obligations under this Agreement
(including, without limitation, its Commitments to the Borrower hereunder)
shall remain unchanged, (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 any such Notes for all purposes of this Agreement,
(iv) the Borrower, the Agent, and the Issuing Bank 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
require the participant's consent to any matter under this Agreement, except
for change in the principal amount of the Notes, reductions in fees or
interest, releasing any collateral, or extending the Revolving Maturity Date or
the Term Maturity Date.  The Borrower hereby agrees that participants shall
have the same rights under Sections 2.11, 2.12, 2.13(c), and 9.07 as a Bank to
the extent of their respective participations.

         Section 9.07.    Indemnification.  THE BORROWER SHALL INDEMNIFY THE
AGENT, THE BANKS, THE ISSUING BANK, AND EACH AFFILIATE THEREOF AND THEIR
RESPECTIVE DIRECTORS, OFFICERS, EMPLOYEES, AND





                                      -68-
<PAGE>   75
AGENTS FROM, AND DISCHARGE, RELEASE, AND HOLD EACH OF THEM HARMLESS AGAINST,
ANY AND ALL LOSSES, LIABILITIES, CLAIMS, OR DAMAGES WHICH MAY BE IMPOSED ON,
INCURRED BY, OR ASSERTED AGAINST THEM IN ANY WAY RELATING TO OR ARISING OUT OF
THIS AGREEMENT OR ANY ACTION TAKEN OR OMITTED BY THEM UNDER THIS AGREEMENT OR
ANY OTHER CREDIT DOCUMENT (INCLUDING ANY SUCH LOSSES, LIABILITIES, CLAIMS,
DAMAGES, OR EXPENSE INCURRED BY REASON OF THE PERSON BEING INDEMNIFIED'S OWN
NEGLIGENCE), BUT EXCLUDING ANY SUCH LOSSES, LIABILITIES, CLAIMS, DAMAGES, OR
EXPENSES INCURRED BY REASON OF THE GROSS NEGLIGENCE OR WILLFUL MISCONDUCT OF
THE PERSON TO BE INDEMNIFIED.

         Section 9.08.    Execution in Counterparts.  This Agreement may be
executed in any number of counterparts and by different parties hereto in
separate counterparts, each of which when so executed shall be deemed to be an
original and all of which taken together shall constitute one and the same
agreement.

         Section 9.09.    Survival of Representations, Etc.  All
representations and warranties contained in this Agreement or made in writing
by or on behalf of the Borrower in connection herewith shall survive the
execution and delivery of this Agreement and the Credit Documents, the making
of the Advances and any investigation made by or on behalf of the Banks, none
of which investigations shall diminish any Bank's right to rely on such
representations and warranties.  All obligations of the Borrower provided for
in Sections 2.11, 2.12, 2.13(c), 9.04, and 9.07 and all of the obligations of
the Banks in Section 8.05 shall survive any termination of this Agreement and
repayment in full of the Obligations.

         Section 9.10.    Severability.  In case one or more provisions of this
Agreement or the other Credit Documents shall be invalid, illegal or
unenforceable in any respect under any applicable law, the validity, legality,
and enforceability of the remaining provisions contained herein or therein
shall not be affected or impaired thereby.

         Section 9.11.    Business Loans.  The Borrower warrants and represents
that the Loans evidenced by the Notes are and shall be for business,
commercial, investment, or other similar purposes and not primarily for
personal, family, household, or agricultural use, as such terms are used in
Chapter One ("Chapter One") of the Texas Credit Code.  At all such times, if
any, as Chapter One shall establish a Maximum Rate, the Maximum Rate shall be
the "indicated rate ceiling" (as such term is defined in Chapter One) from time
to time in effect.





                                      -69-
<PAGE>   76
         Section 9.12.    Governing Law.  This Agreement, the Notes and the
other Credit Documents shall be governed by, and construed and enforced in
accordance with, the laws of the State of Texas. Without limiting the intent of
the parties set forth above, (a) Chapter 15, Subtitle 3, Title 79, of the
Revised Civil Statutes of Texas, 1925, as amended (relating to revolving loans
and revolving tri-party accounts), shall not apply to this Agreement, the
Notes, or the transactions contemplated hereby and (b) to the extent that any
Bank may be subject to Texas law limiting the amount of interest payable for
its account, such Bank shall utilize the indicated (weekly) rate ceiling from
time to time in effect as provided in Article 5069-1.04 of the Revised Civil
Statutes of Texas, as amended.  Each Letter of Credit shall be governed by the
Uniform Customs and Practice for Documentary Credits, International Chamber of
Commerce Publication No. 500 (1993 version).

         THE BORROWER, THE BANKS, THE ISSUING BANK AND THE AGENT HEREBY
IRREVOCABLY WAIVE ANY AND ALL RIGHT TO TRIAL BY JURY IN RESPECT OF ANY LEGAL
PROCEEDING ARISING OUT OF OR RELATING TO THIS AGREEMENT, ANY OTHER CREDIT
DOCUMENT, OR ANY OF THE TRANSACTIONS CONTEMPLATED HEREBY, AND IRREVOCABLY
SUBMIT TO THE NONEXCLUSIVE JURISDICTION OF THE COURTS OF HARRIS COUNTY, TEXAS,
AND THE SOUTHERN DISTRICT OF TEXAS FOR THE RESOLUTION OF ANY DISPUTES UNDER
THIS AGREEMENT AND THE CREDIT DOCUMENTS, AND HEREBY IRREVOCABLY WAIVE ANY CLAIM
THAT SUCH JURISDICTION IS IMPRACTICAL OR INCONVENIENT.

         THIS WRITTEN AGREEMENT AND THE CREDIT DOCUMENTS, AS DEFINED IN THIS
AGREEMENT, REPRESENT THE FINAL AGREEMENT AMONG THE PARTIES AND MAY NOT BE
CONTRADICTED BY EVIDENCE OF PRIOR, CONTEMPORANEOUS, OR SUBSEQUENT ORAL
AGREEMENTS OF THE PARTIES.

         THERE ARE NO UNWRITTEN ORAL AGREEMENTS AMONG THE PARTIES.





                                      -70-
<PAGE>   77
         EXECUTED as of the date first above written.

                                        BORROWER:

                                        STONE ENERGY CORPORATION



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


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


                                        AGENT:

                                        NATIONSBANK OF TEXAS, N.A.



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





                                      -71-
<PAGE>   78
                                        BANKS:

REVOLVING COMMITMENT 1                  NATIONSBANK OF TEXAS, N.A.
$30,476,147.63
REVOLVING COMMITMENT 2                  By:                       
$30,000,000.00                             -------------------------------------
TERM COMMITMENT                         Name:                               
$17,142,900.00                               -----------------------------------
                                        Title:                                 
                                              ----------------------------------
              


                                        FIRST NATIONAL BANK OF COMMERCE
REVOLVING COMMITMENT 1
$13,333,333.33
REVOLVING COMMITMENT 2                  By:                                
$15,000,000.00                             -------------------------------------
TERM COMMITMENT                         Name:                               
$7,500,000.00                                -----------------------------------
                                        Title:                               
                                              ----------------------------------
                


                                        HIBERNIA NATIONAL BANK
REVOLVING COMMITMENT 1
$13,333,333.33
REVOLVING COMMITMENT 2                  By:                                  
$15,000,000.00                             -------------------------------------
TERM COMMITMENT                         Name:                                 
$7,500,000.00                                -----------------------------------
                                        Title:                              
                                              ----------------------------------
             





                                      -72-
<PAGE>   79
                                        THE FIRST NATIONAL BANK OF BOSTON
REVOLVING COMMITMENT 1
$22,857,185.71
REVOLVING COMMITMENT 2                  By:                           
$20,000,000.00                             -------------------------------------
TERM COMMITMENT                         Name:                              
$12,857.100.00                               -----------------------------------
                                        Title:                            
                                              ----------------------------------
                  


TOTAL REVOLVING COMMITMENTS 1
$80,000,000.00
TOTAL REVOLVING COMMITMENTS 2
$80,000,000.00
TOTAL TERM COMMITMENTS
$45,000,000.00





                                      -73-


© 2022 IncJournal is not affiliated with or endorsed by the U.S. Securities and Exchange Commission