DENBURY RESOURCES INC
10-Q, EX-10, 2000-11-14
CRUDE PETROLEUM & NATURAL GAS
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                  SECOND AMENDED AND RESTATED CREDIT AGREEMENT


                                      AMONG


                            DENBURY RESOURCES, INC.,
                                  AS BORROWER,


            THE FINANCIAL INSTITUTIONS LISTED ON SCHEDULE 2.1 HERETO,
                                    AS BANKS,


                             BANK OF AMERICA, N.A.,
                            AS ADMINISTRATIVE AGENT,


                              FLEET NATIONAL BANK,

                              BANK ONE, TEXAS, N.A.

                                       AND

                            THE BANK OF NOVA SCOTIA,
                                  AS CO-AGENTS



                                  $300,000,000


                                   DATED AS OF


                                OCTOBER 13, 2000


                         BANC OF AMERICA SECURITIES LLC,
                     AS SOLE LEAD ARRANGER AND BOOK MANAGER






<PAGE>



                                                 TABLE OF CONTENTS
                                                 -----------------
<TABLE>
<CAPTION>
<S>                                                                                                              <C>
ARTICLE I AMENDMENT AND RESTATEMENT...............................................................................2
ARTICLE II TERMS DEFINED..........................................................................................2
     Section 2.1.     Definitions.................................................................................2
     Section 2.2.     Accounting Terms and Determinations........................................................21
     Section 2.3.     Petroleum Terms............................................................................22
     Section 2.4.     Money......................................................................................22
ARTICLE III THE CREDIT...........................................................................................22
     Section 3.1.     Commitments................................................................................22
     Section 3.2.     Method of Borrowing........................................................................25
     Section 3.3.     Method of Requesting Letters of Credit.....................................................26
     Section 3.4.     Notes......................................................................................27
     Section 3.5.     Interest Rates; Payments...................................................................27
     Section 3.6.     Mandatory Prepayments......................................................................28
     Section 3.7.     Voluntary Prepayments......................................................................29
     Section 3.8.     Voluntary Reduction of Commitments.........................................................29
     Section 3.9.     Termination of Commitments; Final Maturity of Revolving Loan...............................29
     Section 3.10.    Application of Payments....................................................................29
     Section 3.11.    Commitment Fee.............................................................................29
     Section 3.12.    Agency and other Fees......................................................................29
ARTICLE IV GENERAL PROVISIONS....................................................................................30
     Section 4.1.     Delivery and Endorsement of Notes..........................................................30
     Section 4.2.     General Provisions as to Payments..........................................................30
ARTICLE V BORROWING BASE.........................................................................................31
     Section 5.1.     Reserve Report; Proposed Borrowing Base and Conforming Borrowing Base......................31
     Section 5.2.     Scheduled Redeterminations of the Borrowing Base and the Conforming Borrowing
                        Base; Procedures and Standards...........................................................31
     Section 5.3.     Special Redetermination....................................................................32
     Section 5.4.     Borrowing Base Deficiency..................................................................33
     Section 5.5.     Initial Borrowing Base and Conforming Borrowing Base.......................................33
ARTICLE VI COLLATERAL AND GUARANTEES.............................................................................33
     Section 6.1.     Security...................................................................................33
     Section 6.2.     Guarantees.................................................................................35
ARTICLE VII CONDITIONS PRECEDENT.................................................................................35
     Section 7.1.     Conditions to Amendment and Restatement and Initial Borrowing and

</TABLE>



                                      10-i

<PAGE>


<TABLE>
<CAPTION>
<S>                                                                                                              <C>
                      Participation in Letter of Credit Exposure.................................................35
     Section 7.2.     Conditions to Each Borrowing and each Letter of Credit.....................................38
     Section 7.3.     Materiality of Conditions..................................................................39
ARTICLE VIII REPRESENTATIONS AND WARRANTIES......................................................................40
     Section 8.1.     Corporate Existence and Power..............................................................40
     Section 8.2.     Credit Party and Governmental Authorization; Contravention.................................40
     Section 8.3.     Binding Effect.............................................................................40
     Section 8.4.     Financial Information......................................................................40
     Section 8.5.     Litigation.................................................................................41
     Section 8.6.     ERISA......................................................................................41
     Section 8.7.     Taxes and Filing of Tax Returns............................................................42
     Section 8.8.     Ownership of Properties Generally..........................................................42
     Section 8.9.     Mineral Interests..........................................................................42
     Section 8.10.    Licenses, Permits, Etc.....................................................................43
     Section 8.11.    Compliance with Law........................................................................43
     Section 8.12.    Full Disclosure............................................................................43
     Section 8.13.    Organizational Structure; Nature of Business...............................................43
     Section 8.14.    Environmental Matters......................................................................43
     Section 8.15.    Burdensome Obligations.....................................................................44
     Section 8.16.    Fiscal Year................................................................................44
     Section 8.17.    No Default.................................................................................44
     Section 8.18.    Government Regulation......................................................................44
     Section 8.19.    Insider....................................................................................44
     Section 8.20.    Gas Balancing Agreements and Advance Payment Contracts.....................................45
ARTICLE IX AFFIRMATIVE COVENANTS.................................................................................45
     Section 9.1.     Information................................................................................45
     Section 9.2.     Business of Credit Parties.................................................................47
     Section 9.3.     Maintenance of Existence...................................................................47
     Section 9.4.     Title Data.................................................................................47
     Section 9.5.     Right of Inspection........................................................................48
     Section 9.6.     Maintenance of Insurance...................................................................48
     Section 9.7.     Payment of Taxes and Claims................................................................48
     Section 9.8.     Compliance with Laws and Documents.........................................................49
     Section 9.9.     Operation of Properties and Equipment......................................................49
     Section 9.10.    Environmental Law Compliance...............................................................49
     Section 9.11.    ERISA Reporting Requirements...............................................................49
     Section 9.12.    Additional Documents.......................................................................50
     Section 9.13.    Environmental Review.......................................................................50
ARTICLE X NEGATIVE COVENANTS.....................................................................................51
     Section 10.1.    Incurrence of Debt.........................................................................51
     Section 10.2.    Restricted Payments........................................................................51
     Section 10.3.    Negative Pledge............................................................................51
     Section 10.4.    Consolidations and Mergers.................................................................52
</TABLE>


                                     10-ii


<PAGE>


<TABLE>
<CAPTION>
<S>                                                                                                              <C>
     Section 10.5.    Asset Dispositions.........................................................................52
     Section 10.6.    Amendments to Organizational Documents.....................................................52
     Section 10.7.    Use of  Proceeds...........................................................................52
     Section 10.8.    Investments................................................................................53
     Section 10.9.    Transactions with Affiliates...............................................................53
     Section 10.10.   ERISA......................................................................................53
     Section 10.11.   Hedge Transactions.........................................................................53
     Section 10.12.   Fiscal Year................................................................................53
     Section 10.13.   Change in Business.........................................................................53
     Section 10.14.   Qualified Purpose. ........................................................................53
ARTICLE XI FINANCIAL COVENANTS...................................................................................54
     Section 11.1.    Current Ratio of Borrower..................................................................54
     Section 11.2.    Minimum Consolidated Tangible Net Worth....................................................54
     Section 11.3.    Consolidated EBITDA to Consolidated Net Interest Expense...................................54
ARTICLE XII DEFAULTS.............................................................................................54
     Section 12.1.    Events of Default..........................................................................54
ARTICLE XIII AGENTS..............................................................................................56
     Section 13.1.    Appointment, Powers, and Immunities........................................................56
     Section 13.2.    Reliance by Agents.........................................................................57
     Section 13.3.    Defaults...................................................................................57
     Section 13.4.    Rights as Bank.............................................................................57
     Section 13.5.    Indemnification............................................................................58
     Section 13.6.    Non-Reliance on Agent and Other Banks......................................................58
     Section 13.7.    Resignation of Agents......................................................................58
ARTICLE XIV CHANGE IN CIRCUMSTANCES..............................................................................59
     Section 14.1.    Increased Cost and Reduced Return..........................................................59
     Section 14.2.    Limitation on Type of Loans................................................................60
     Section 14.3.    Illegality.................................................................................61
     Section 14.4.    Treatment of Affected Loans................................................................61
     Section 14.5.    Compensation...............................................................................62
     Section 14.6.    Taxes......................................................................................62
     Section 14.7.    Discretion of Banks as to Manner of Funding................................................63
ARTICLE XV MISCELLANEOUS.........................................................................................64
     Section 15.1.    Notices....................................................................................64
     Section 15.2.    No Waivers.................................................................................64
     Section 15.3.    Expenses; Indemnification..................................................................64
     Section 15.4.    Right of Set-off; Adjustments..............................................................65
     Section 15.5.    Amendments and Waivers.....................................................................66
     Section 15.6.    Survival...................................................................................66
     Section 15.7.    Limitation on Interest.....................................................................67
</TABLE>


                                     10-iii


<PAGE>
<TABLE>
<CAPTION>
     <S>                                                                                                         <C>
     Section 15.8.    Invalid Provisions.........................................................................67
     Section 15.9.    Waiver of Consumer Credit Laws.............................................................67
     Section 15.10.   Assignments and Participations.............................................................67
     Section 15.11.   TEXAS LAW..................................................................................69
     Section 15.12.   Consent to Jurisdiction; Waiver of Immunities..............................................69
     Section 15.13.   Counterparts; Effectiveness................................................................70
     Section 15.14.   No Third Party Beneficiaries...............................................................70
     Section 15.15.   COMPLETE AGREEMENT.........................................................................70
     Section 15.16.   WAIVER OF JURY TRIAL.......................................................................70
     Section 15.17.   Confidentiality............................................................................70
</TABLE>


                                     10-iv
<PAGE>


                                    EXHIBITS
                                    --------

EXHIBIT A         FORM OF AMENDMENT TO MORTGAGES
EXHIBIT B         FORM OF FACILITY GUARANTY
EXHIBIT C         FORM OF PROMISSORY NOTE
EXHIBIT D         FORM OF BORROWER PLEDGE AGREEMENT
EXHIBIT E         FORM OF SUBSIDIARY PLEDGE AGREEMENT
EXHIBIT F         FORM OF REQUEST FOR BORROWING
EXHIBIT G         FORM OF REQUEST FOR LETTER OF CREDIT
EXHIBIT H         FORM OF NOTICE OF CONTINUATION OR CONVERSION
EXHIBIT I         FORM OF CERTIFICATE OF OWNERSHIP INTERESTS
EXHIBIT J         FORM OF CERTIFICATE OF FINANCIAL OFFICER
EXHIBIT K         FORM OF ASSIGNMENT AND ACCEPTANCE AGREEMENT
EXHIBIT L         FORM OF CERTIFICATE OF EFFECTIVENESS

                                    SCHEDULES
                                    ---------

SCHEDULE 2.1      FINANCIAL INSTITUTIONS
SCHEDULE 2.2      EXISTING MORTGAGES
SCHEDULE 8.5      LITIGATION
SCHEDULE 8.10     LICENSES, PERMITS, ETC.
SCHEDULE 8.13     JURISDICTIONS, ETC.
SCHEDULE 9.10     ENVIRONMENTAL DISCLOSURE


                                     10-v



<PAGE>


                  SECOND AMENDED AND RESTATED CREDIT AGREEMENT
                  --------------------------------------------

     THIS SECOND AMENDED AND RESTATED  CREDIT  AGREEMENT  (this  "AGREEMENT") is
                                                                  ---------
entered into as of the 13th day of October, 2000, among DENBURY RESOURCES, INC.,
a corporation  previously  incorporated under the Canadian Business  Corporation
Act which has been domesticated in the State of Delaware  ("BORROWER") and which
                                                            --------
is the  successor by merger to Denbury  Management,  Inc.,  a Texas  corporation
("MANAGEMENT"), BANK OF AMERICA, N.A., successor by merger to NationsBank, N.A.,
  ----------
successor by merger to  NationsBank  of Texas,  N.A.,  as  Administrative  Agent
("ADMINISTRATIVE  AGENT"),  FLEET NATIONAL BANK, BANK ONE,  TEXAS,  N.A. and THE
  ---------------------
BANK OF NOVA SCOTIA, as Co-Agents  ("CO-AGENTS") and the financial  institutions
                                     ---------
listed on Schedule 2.1 hereto as Banks  (individually a "BANK" and  collectively
          ------------                                   ----
"BANKS").
-------

                              W I T N E S S E T H:
                              --------------------

     WHEREAS, Management, Borrower, Administrative Agent and the other financial
institutions  named and  defined  therein as Banks (the  "EXISTING  BANKS")  are
                                                          ---------------
parties to that certain First Restated Credit Agreement dated as of December 29,
1997,  pursuant to which Existing Banks provided certain loans and extensions of
credit to Management and Borrower (as amended, the "EXISTING CREDIT AGREEMENT");
                                                    -------------------------
and

     WHEREAS,  Borrower was formerly  incorporated  under the Canadian  Business
Corporation Act and was domesticated in the State of Delaware; and

     WHEREAS,  Management  merged with and into Borrower with Borrower being the
surviving corporation (the "MERGER"),  and as a result of such Merger,  Borrower
                            ------
assumed  and  is  primarily  liable  for  all  of  the  debts,  obligations  and
liabilities of Management under the Existing Credit Agreement and the other Loan
Papers (as defined in the Existing  Credit  Agreement)  and Borrower  became the
"Borrower"  under and as defined in the Existing Credit Agreement and such other
Loan Papers; and

     WHEREAS,  immediately prior to the execution of this Agreement,  certain of
the Existing Banks have purchased and assumed all of the rights and interests of
The Chase Manhattan Bank, successor by merger to Chase Bank of Texas, N.A., as a
Bank under the Existing Credit Agreement (the "CHASE ASSIGNMENT"); and
                                               ----------------

     WHEREAS,  immediately  after  giving  effect to the Chase  Assignment,  the
parties hereto desire to amend and restate the Existing Credit  Agreement in the
form of this  Agreement,  and Borrower  desires to obtain  Borrowings (as herein
defined) (a) to refinance the indebtedness  under the Existing Credit Agreement,
and (b) for other purposes permitted herein; and

     WHEREAS,  after giving effect to the Chase Assignment and the amendment and
restatement of the Existing Credit Agreement  pursuant to the terms hereof,  the
Commitment  Percentage (as herein defined) of each Bank hereunder will be as set
forth on Schedule 2.1 hereto; and
         ------------


                                      10-1


<PAGE>

     WHEREAS,  pursuant  to  Article  XIV of this  Agreement,  Bank of  America,
                             ------------
N.A.has  been  appointed  Administrative  Agent for Banks  hereunder,  and Fleet
National  Bank,  Bank One,  Texas,  N.A.  and The Bank of Nova  Scotia have been
appointed Co-Agents for Banks hereunder; and

     WHEREAS,  pursuant to certain  separate  agreements  among Bank of America,
N.A.,  Banc of  America  Securities  LLC  ("BAS")  and  Borrower,  BAS has  been
                                            ---
appointed Sole Lead Arranger and Book Manager for the credit  facility  provided
herein.

     NOW,  THEREFORE,  in  consideration of the premises,  the  representations,
warranties,  covenants  and  agreements  contained  herein,  and other  good and
valuable   consideration,   the  receipt  and   adequacy  of  which  are  hereby
acknowledged, Borrower, Administrative Agent and Banks agree as follows:


                                   ARTICLE I

                            AMENDMENT AND RESTATEMENT
                            -------------------------

     Subject  to the  satisfaction  of each  condition  precedent  contained  in
Section  7.1  hereof,  the  satisfaction  of  which  shall be  evidenced  by the
------------
execution  by  Borrower  and   Administrative   Agent  of  the   Certificate  of
Effectiveness  (as herein  defined),  the  Existing  Credit  Agreement  shall be
amended  and  restated  as of the  Closing  Date in the form of this  Agreement.


                                   ARTICLE II

                                  TERMS DEFINED
                                  -------------

     Section 2.1.  DEFINITIONS.  The following  terms, as used herein,  have the
                   -----------
following meanings:

     "ADJUSTED  EURODOLLAR RATE" means, for any Eurodollar Loan for any Interest
      -------------------------
Period  therefor,  the rate per annum  (rounded  upwards,  if necessary,  to the
nearest  1/100  of 1%)  determined  by  Administrative  Agent to be equal to the
quotient  obtained by dividing (a) the Eurodollar  Rate for such Eurodollar Loan
for  such  Interest  Period  by (b) 1 minus  the  Reserve  Requirement  for such
Eurodollar Loan for such Interest Period.

     "ADMINISTRATIVE  AGENT" means Bank of America, N.A., successor by merger to
      ---------------------
NationsBank,  N.A.,  successor by merger to NationsBank  of Texas,  N.A., in its
capacity as Administrative Agent for Banks hereunder or any successor thereto.

     "ADVANCE  PAYMENT  CONTRACT"  means any  contract  whereby any Credit Party
      --------------------------
either  (a)  receives  or  becomes  entitled  to  receive  (either  directly  or
indirectly)  any payment (an "ADVANCE  PAYMENT") to be applied toward payment of
                              ----------------
the  purchase  price of  Hydrocarbons  produced or to be produced  from  Mineral
Interests  owned by any Credit Party and which Advance  Payment is, or is to be,
paid in advance of actual  delivery of such  production to or for the account of
the purchaser regardless of such production, or (b) grants an option or right of
refusal to the purchaser to take delivery of such production in lieu of payment,
and, in either of

                                      10-2


<PAGE>
the foregoing instances, the Advance Payment is, or is to be, applied as payment
in full for such  production when sold and delivered or is, or is to be, applied
as payment for a portion only of the purchase  price  thereof or of a percentage
or share of such  production;  provided that  inclusion of the standard "take or
                               -------- ----
pay"  provision  in any gas sales or  purchase  contract  or any  other  similar
contract  shall not, in and of itself,  constitute  such  contract as an Advance
Payment Contract for the purposes hereof.

     "AFFILIATE"  means, as to any Person, any Subsidiary of such Person, or any
      ---------
other Person which,  directly or indirectly,  controls,  is controlled by, or is
under common  control  with,  such Person and, with respect to any Credit Party,
means,  any  director,  executive  officer,  general  partner or manager of such
Credit  Party and any Person who holds ten  percent  (10%) or more of the voting
stock, partnership interests,  membership interests or other ownership interests
of such Credit Party. For the purposes of this definition, "CONTROL" (including,
                                                            -------
with correlative  meanings,  the terms "CONTROLLED BY" and "UNDER COMMON CONTROL
                                        -------------       --------------------
WITH"), as used with respect to any Person, shall mean the possession,  directly
----
or  indirectly,  of the power to direct or cause the direction of the management
and policies of such Person, whether through the
ownership of voting securities,  membership interests or partnership  interests,
or by contract or otherwise.

     "AGENT" means Administrative Agent, any Co-Agent, Sole Lead Manager or Book
      -----
Manager, and "AGENTS" means Administrative Agent, Co-Agents,  Sole Lead Arranger
              ------
and Book Manager, collectively.

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

     "AMENDMENT  TO EXISTING  MORTGAGES"  means an  Amendment to Mortgages to be
      ---------------------------------
entered into between  Borrower and  Administrative  Agent,  substantially in the
form of Exhibit A attached  hereto,  pursuant  to which the  Existing  Mortgages
        ---------
shall be amended to reflect the amendment and restatement of the Existing Credit
Agreement pursuant hereto.

     "APPLICABLE  ENVIRONMENTAL  LAW"  means any  federal,  state or local  law,
      ------------------------------
common law, ordinance,  regulation or policy, as well as order, decree,  permit,
judgment or injunction issued,  promulgated,  approved,  or entered  thereunder,
relating  to  the  environment,  health  and  safety,  or  Hazardous  Substances
(including, without limitation, the use, handling,  transportation,  production,
disposal,  discharge  or  storage  thereof)  or to  industrial  hygiene  or  the
environmental  conditions on, under, or about any real property owned, leased or
operated at any time by any Credit Party or any real property  owned,  leased or
operated by any other party including,  without limitation,  soil,  groundwater,
and indoor and ambient air conditions.

     "APPLICABLE LENDING OFFICE" means, for each Bank and for each Type of Loan,
      -------------------------
the "Lending  Office" of such Bank (or of an affiliate of such Bank)  designated
for such Type of Loan on the signature pages hereof or such other office of such
Bank (or an  affiliate  of such Bank) as such Bank may from time to time specify
to  Administrative  Agent and Borrower by written notice in accordance  with the
terms  hereof  as the  office  by which  Loans  of such  Type are to be made and
maintained.


                                      10-3

<PAGE>

     "APPLICABLE  MARGIN" means, on any date, with respect to each Type of Loan,
      ------------------
an amount  determined  by  reference to the ratio of  Outstanding  Credit to the
Conforming Borrowing Base on such date in accordance with the table below:

<TABLE>
<CAPTION>
   Ratio of Outstanding Credit to       Applicable Margin for           Applicable Margin for
     Conforming Borrowing Base             Eurodollar Loans                Base Rate Loans
     <S>                                        <C>                              <C>
            <= .50 to 1                         1.250%                           0%
     > .50 to 1 and <= .75 to 1                 1.500%                           0%
     > .75 to 1 and <= .90 to 1                 1.750%                          .250%
     > .90 to 1 and <= 1.0 to 1                 2.000%                          .500%
             > 1.0 to 1                         2.375%                          .750%
==================================== ============================  ===============================
</TABLE>

     "APPROVED  PETROLEUM  ENGINEER" means DeGolyer and MacNaughton or any other
      -----------------------------
reputable  firm of  independent  petroleum  engineers  as shall be  selected  by
Borrower and approved by Required  Banks,  such approval not to be  unreasonably
withheld.

     "ASSIGNMENT  AND  ACCEPTANCE  AGREEMENT" has the meaning given such term in
      --------------------------------------
Section 15.10(a).
----------------

     "AUTHORIZED  OFFICER" means, as to any Person, its Chief Executive Officer,
      -------------------
its President,  its Chief Financial  Officer,  any of its Vice  Presidents,  its
Treasurer or its corporate Secretary.

     "AVAILABILITY"  means,  as of any date,  the remainder of (a) the Borrowing
      ------------
Base in effect on such date, minus (b) the Outstanding Credit on such date.

     "BANK" means any financial  institution reflected on Schedule 2.1 hereto as
      ----                                                ------------
having a Commitment  and its  successors  and permitted  Assignees,  and "BANKS"
                                                                          -----
shall mean all Banks.

     "BANK  OF  AMERICA"  means  Bank  of  America,  N.A.,  a  national  banking
      -----------------
association,  successor by merger to NationsBank,  N.A.,  successor by merger to
NationsBank of Texas, N.A., in its capacity as a Bank.

     "BAS" means Banc of America Securities LLC.
      ---

     "BASE RATE"  means,  for any day, the rate per annum equal to the higher of
      ---------
(a) the Federal  Funds Rate for such day plus  one-half of one percent (.5%) and
(b) the Prime Rate for such day.  Any change in the Base Rate due to a change in
the Prime Rate or the Federal  Funds Rate shall be effective  automatically  and
without  notice to Borrower or any Bank on the effective  date of such change in
the Prime Rate or Federal Funds Rate.

     "BASE RATE LOAN" means the portion of the principal of the  Revolving  Loan
      --------------
bearing interest with reference to the Base Rate.

     "BOOK MANAGER" means Banc of America Securities LLC in its capacity as book
      ------------
manager for the credit facility hereunder or any successor thereto.

     "BORROWER" means Denbury Resources, Inc., a Delaware corporation
      --------

                                      10-4


<PAGE>

     "BORROWER PLEDGE  AGREEMENT" means a Pledge Agreement  substantially in the
      --------------------------
form of Exhibit D attached hereto (with applicable conforming changes) which may
        ---------
be  executed  by  Borrower   pursuant  to  which   Borrower   shall   pledge  to
Administrative  Agent,  for the ratable benefit of Banks,  all of the issued and
outstanding  Equity owned by Borrower of each  Subsidiary of Borrower  described
therein to secure the Obligations.

     "BORROWING"  means any  disbursement  to Borrower  under, or to satisfy the
      ---------
obligations  of any Credit Party under,  any of the Loan Papers.  Any  Borrowing
which will  constitute  a part of the Base Rate Loan is  referred to herein as a
"BASE RATE  BORROWING,"  and any  Borrowing  which will  constitute a Eurodollar
 --------------------
Loan, is referred to herein as a "EURODOLLAR BORROWING."
                                  --------------------

     "BORROWING BASE" has the meaning set forth in Section 5.1 hereof.
      --------------                               -----------

     "BORROWING BASE DEFICIENCY"  means, as of any date, the amount,  if any, by
      -------------------------
which the  Outstanding  Credit on such date exceeds the Borrowing Base in effect
on such date;  provided,  that,  for purposes of  determining  the existence and
               --------   ----
amount of any Borrowing Base  Deficiency,  Letter of Credit Exposure will not be
deemed to be  outstanding  to the  extent it is  secured  by cash in the  manner
contemplated by Section 3.1(b).
                --------------

     "BORROWING BASE PROPERTIES" means all Mineral Interests  evaluated by Banks
      -------------------------
for purposes of establishing the Borrowing Base.

     "BORROWING DATE" means the Eurodollar Business Day or the Domestic Business
      --------------
Day,  as the case may be,  upon which the  proceeds  of any  Borrowing  are made
available to Borrower or to satisfy any obligation of any Credit Party.

     "CERTIFICATE OF EFFECTIVENESS"  means a Certificate of Effectiveness in the
      ----------------------------
form of Exhibit L attached hereto to be executed by Borrower and  Administrative
        ---------
Agent upon the  satisfaction  of each of the conditions  precedent  contained in
Section 7.1 hereof.
-----------

     "CERTIFICATE  OF  OWNERSHIP  INTERESTS"  means a  Certificate  of Ownership
      -------------------------------------
Interests in the form of Exhibit I attached  hereto to be executed and delivered
                         ---------
by an Authorized Officer of Borrower pursuant to

Section 7.1(a)(xiii) hereof.
--------------------
     "CHANGE OF  CONTROL"  means that,  for any reason,  any Person or group (as
      ------------------
defined in Section  13(d)(3)  or 14(d)(2)  of the  Exchange  Act) other than the
Texas Pacific Group shall become (i) the direct or indirect beneficial owner (as
defined in Rule  13(d)(3) of the Exchange  Act) of greater  than thirty  percent
(30%) of the total voting power of all classes of capital stock then outstanding
of Borrower  entitled  (without regard to the occurrence of any  contingency) to
vote in elections of directors of Borrower,  and (ii) the largest shareholder of
the total  voting  power of all  classes of capital  stock then  outstanding  of
Borrower  entitled (without regard to the occurrence of any contingency) to vote
in elections of directors of Borrower.

     "CHASE  ASSIGNMENT"  has the meaning  assigned to such term in the recitals
      -----------------
hereto.

     "CLOSING  DATE" means the date upon which all of the  conditions  precedent
      -------------
set forth in Section 7.1 have been  satisfied,  and Borrower and  Administrative
             -----------
Agent have executed and


                                      10-5


<PAGE>
delivered the Certificate of  Effectiveness;  provided,  that, in no event shall
                                              --------   ----
such date be later than October 13, 2000.

     "CODE" means the Internal Revenue Code of 1986, as amended.
      ----

     "CO-AGENT" means Fleet National Bank, Bank One, Texas,  N.A. or The Bank of
      --------
Nova Scotia,  in its capacity as Co-Agent for Banks  hereunder or any  successor
thereto,  and "CO-AGENTS"  means Fleet National Bank, Bank One, Texas,  N.A. and
               ---------
The Bank of Nova Scotia,  collectively,  in their  capacities  as Co-Agents  for
Banks hereunder.

     "COMMITMENT"  means,  with respect to any Bank, the commitment of such Bank
      ----------
to lend its Commitment  Percentage of the Total Commitment to Borrower  pursuant
to Section 3.1 hereof, as such Commitment may be terminated or reduced from time
   -----------
to time in accordance  with the  provisions  hereof.  On the Closing  Date,  the
amount of each Bank's  Commitment  is the amount set forth  opposite such Bank's
name  on  Schedule  2.1  hereto;  provided,  that  after  giving  effect  to any
          -------------           --------   ----
Assignment  and Acceptance  Agreement,  the Commitment of each Bank shall be the
amount set forth in the Register maintained by Administrative  Agent pursuant to
Section 15.10(b) hereof.
----------------

     "COMMITMENT FEE PERCENTAGE"  means, on any date, the percentage  determined
      -------------------------
by reference to the ratio of Outstanding Credit to the Conforming Borrowing Base
on such date in accordance with the table below:
<TABLE>
<CAPTION>
   Ratio of Outstanding Credit to                 Commitment Fee
     Conforming Borrowing Base                      Percentage
     <S>                                                <C>
            <= .50 to 1                                .350%
     > .50 to 1 and <= .75 to 1                        .375%
     > .75 to 1 and <= .90 to 1                        .500%
     > .90 to 1 and <= 1.0 to 1                        .500%
             > 1.0 to 1                                .500%
==================================== =========================================
</TABLE>

     "COMMITMENT  PERCENTAGE"  means,  with respect to each Bank, the Commitment
      ----------------------
Percentage for such Bank set forth on Schedule 2.1 hereto;  provided, that after
                                      ------------          --------  ----
giving  effect  to any  Assignment  and  Acceptance  Agreement,  the  Commitment
Percentage of each Bank shall be the amount set forth in the Register maintained
by Administrative Agent pursuant to Section 15.10(b) hereof.
                                    ----------------

     "CONFORMING  BORROWING  BASE"  has the  meaning  set forth in  Section  5.1
      ---------------------------                                   ------------
hereof.

     "CONSOLIDATED  CURRENT  ASSETS"  means,  for any  Person at any  time,  the
      -----------------------------
current assets of such Person and its  Consolidated  Subsidiaries  at such time,
plus, in the case of Borrower, the Availability at such time.


     "CONSOLIDATED  CURRENT  LIABILITIES" means, for any Person at any time, the
      ----------------------------------
current  liabilities of such Person and its  Consolidated  Subsidiaries  at such
time,  but, in the case of

                                      10-6


<PAGE>

Borrower,  excluding the current portion (if any) of the  outstanding  principal
balance of the Revolving Loan.

     "CONSOLIDATED   EBITDA"  means,   for  any  Person  for  any  period:   (a)
      ---------------------
Consolidated  Net Income of such  Person for such  period;  plus,  to the extent
deducted in the  calculation  of  Consolidated  Net  Income,  (b) the sum of (i)
income or  franchise  Taxes paid or  accrued;  (ii)  Consolidated  Net  Interest
Expense;  (iii)  amortization,  depletion  and  depreciation  expense;  (iv) any
non-cash  losses  or  charges  on  any  Hedge   Agreement   resulting  from  the
requirements  of SFAS  133 for  that  period;  and (v)  other  non-cash  charges
(excluding  accruals for cash expenses made in the ordinary course of business);
less, to the extent included in the calculation of Consolidated Net Income,  (c)
----
the sum of (i) the income of any Person (other than wholly-owned Subsidiaries of
such  Person)  unless  such  income  is  received  by  such  Person  in  a  cash
distribution;  (ii) gains or losses from sales or other  dispositions  of assets
(other than Hydrocarbons  produced in the normal course of business);  (iii) any
non-cash gains on any Hedge  Agreement  resulting from the  requirements of SFAS
133 for that period; and (iv) extraordinary or non-recurring  gains, but not net
of extraordinary or non-recurring "cash" losses.

     "CONSOLIDATED  NET INCOME"  means,  for any Person for any period,  the net
      ------------------------
income  (or loss) of such  Person  and its  Consolidated  Subsidiaries  for such
period.

     "CONSOLIDATED  NET INTEREST  EXPENSE" means, for any Person for any period,
      -----------------------------------
the remainder of the following for such Person and its Consolidated Subsidiaries
for such period: (a) interest expense, minus (b) interest income.

     "CONSOLIDATED  SUBSIDIARY" or  "CONSOLIDATED  SUBSIDIARIES"  means, for any
      ------------------------       --------------------------
Person,  any  Subsidiary  or  other  entity  the  accounts  of  which  would  be
consolidated with those of such Person in its consolidated financial statements.

     "CONSOLIDATED  TANGIBLE NET WORTH" means, with respect to any Person at any
      --------------------------------
time,  (a) the  consolidated  shareholder's  equity of such Person at such time,
less (b) the  consolidated  Intangible  Assets of such Person at such time.  For
purposes of this  definition,  (i) any non-cash gains,  losses or charges on any
Hedge  Agreement  resulting from the  requirements of SFAS 133 for any period of
determination  shall be excluded from the  determination  of such  shareholder's
equity,  and (ii) "INTANGIBLE  ASSETS" means the amount (to the extent reflected
                   ------------------
in determining such consolidated  shareholder's  equity) of all unamortized debt
discount  and  expense,   unamortized  deferred  charges,   goodwill,   patents,
trademarks,  service marks, trade names,  copyrights,  organization expenses and
other intangible items.

     "CONTINUE,"  "CONTINUATION" and "CONTINUED" shall refer to the continuation
      --------     ------------       ---------
pursuant to Section 3.5 hereof  and/or  Article XIV hereof of a Eurodollar  Loan
            -----------                 -----------
from one Interest Period to the next Interest Period.

     "CONVERT,"  "CONVERSION"  and  "CONVERTED"  shall  refer  to  a  conversion
      -------     ----------         ---------
pursuant  to Section  3.5 and/or  Article  XIV hereof of all or a portion of one
             ------------         ------------
Type of Loan into another Type of Loan.

     "CREDIT  PARTIES"  means,  collectively,  Borrower and each  Subsidiary  of
      ---------------
Borrower and "CREDIT PARTY" means any one of the foregoing.
              ------------
                                      10-7

<PAGE>

     "DEBT"  means,  for any Person at any time,  without  duplication,  (a) all
      ----
obligations  of such Person for  borrowed  money,  (b) all  obligations  of such
Person evidenced by bonds, debentures,  notes or other similar instruments,  (c)
all other  indebtedness  (including  capitalized lease  obligations,  other than
usual and customary oil and gas leases) of such Person on which interest charges
are  customarily  paid or accrued,  (d) all  Guarantees by such Person,  (e) the
unfunded or unreimbursed portion of all letters of credit issued

for the account of such Person, (f) any amount owed by such Person  representing
the deferred  purchase price of property or services other than accounts payable
incurred in the ordinary  course of business and in  accordance  with  customary
trade terms and which are not more than one hundred  twenty  (120) days past the
invoice  date,  and (g) all  liability of such Person as a general  partner of a
partnership for obligations of such  partnership of the nature  described in (a)
through (f) preceding.

     "DEFAULT"  means  any  condition  or event  which  constitutes  an Event of
      -------
Default or which with the giving of notice,  lapse of time or both would, unless
cured or waived, become an Event of Default.

     "DEFAULT RATE" means,  in respect of any principal of the Revolving Loan or
      ------------
any other amount payable by Borrower under any Loan Paper which is not paid when
due (whether at stated  maturity,  by  acceleration,  or otherwise),  a rate per
annum during the period  commencing on the due date until such amount is paid in
full  equal to the sum of (i)  three  percent  (3%),  plus  (ii) the  Applicable
Margin, plus (iii) the Base Rate as in effect from time to time (provided,  that
                                                                 --------   ----
if such amount in default is  principal of a  Eurodollar  Borrowing  and the due
date is a day  other  than the  last day of an  Interest  Period  therefor,  the
"Default  Rate" for such  principal  shall be, for the period from and including
the due date and to but excluding the last day of the Interest period  therefor,
the sum of (a) three percent (3%), plus (b) the Applicable Margin,  plus (c) the
Eurodollar  Rate for such  Borrowing  for such  Interest  Period as  provided in
Section  3.5  hereof,  and  thereafter,  the  rate  provided  for  above in this
------------
definition).

     "DES"  means  Denbury  Energy  Service,  Inc.,  which  is  a  wholly  owned
      ---
Subsidiary of Borrower.

     "DISTRIBUTION" by any Person, means (a) with respect to any stock issued by
      ------------
such  Person or any  partnership,  joint  venture,  limited  liability  company,
membership  or  other  interest  of such  Person,  the  retirement,  redemption,
purchase, or other acquisition for value of any such stock or partnership, joint
venture,  limited  liability  company,  membership  or other  interest,  (b) the
declaration or payment of any dividend or other  distribution on or with respect
to any stock, partnership,  joint venture, limited liability company, membership
or other  interest of any Person,  and (c) any other payment by such Person with
respect to such stock,  partnership,  joint venture,  limited liability company,
membership or other interest of such Person.

     "DOMESTIC  BUSINESS  DAY" means any day except a Saturday,  Sunday or other
      -----------------------
day on which national banks in Dallas, Texas, are authorized by Law to close.

     "DOMESTIC LENDING OFFICE" means, as to each Bank, (a) its office located at
      -----------------------
its address  identified on Schedule 2.1 hereto as its Domestic  Lending  Office,
                           ------------
(b) its office located at its address  identified on the Register (as defined in
Section  15.10(b)) as its Domestic  Lending


                                      10-8


<PAGE>

Office,  or (c) such other  office as such Bank may  hereafter  designate as its
Domestic Lending Office by notice to Borrower and Administrative Agent.

     "ELIGIBLE  ASSIGNEE"  means (a) a Bank; (b) an affiliate of a Bank; and (c)
      ------------------
any other  Person  approved  by  Administrative  Agent  and,  unless an Event of
Default has occurred and is continuing at the time any assignment is effected in
accordance  with Section 15.10,  Borrower,  such approval not to be unreasonably
                 -------------
withheld or delayed by Borrower or Administrative Agent, and such approval to be
deemed given by Borrower if no objection is received by the  assigning  Bank and
Administrative  Agent from Borrower within two (2) Domestic  Business Days after
notice of such proposed  assignment  has been provided by the assigning  Bank to
Borrower;  provided, however, that neither Borrower nor an affiliate of Borrower
           --------  -------  ----
shall qualify as an Eligible Assignee.

     "ENVIRONMENTAL COMPLAINT" means any complaint,  summons,  citation, notice,
      -----------------------
directive, order, claim, litigation, investigation, proceeding, judgment, letter
or other  communication  from any federal,  state or municipal  authority or any
other party against any Credit Party  involving (a) a Hazardous  Discharge from,
onto or about any real  property  owned,  leased or  operated at any time by any
Credit  Party,  (b) a Hazardous  Discharge  caused,  in whole or in part, by any
Credit Party or by any Person acting on behalf of or at the  instruction  of any
Credit Party,  or (c) any violation of any Applicable  Environmental  Law by any
Credit Party.

     "EQUITY" means shares of capital stock or a partnership,  profits, capital,
      ------
member or other  equity  interest,  or options,  warrants or any other rights to
substitute for or otherwise acquire the capital stock or a partnership, profits,
capital, member or other equity interest of any Person.

     "ERISA"  means the Employee  Retirement  Income  Security  Act of 1974,  as
      -----
amended.

     "ERISA  AFFILIATE"  means any corporation or trade or business under common
      ----------------
control with any Credit Party as determined under section 4001(a)(14) of ERISA.

     "EURODOLLAR  BUSINESS  DAY"  means  any  Domestic  Business  Day  on  which
      -------------------------
commercial  banks are open for  international  business  (including  dealings in
dollar deposits) in the applicable Eurodollar interbank market.

     "EURODOLLAR LENDING OFFICE" means, as to each Bank, (a) its office,  branch
      -------------------------
or  affiliate  located at its address  identified  on Schedule 2.1 hereto as its
                                                      ------------
Eurodollar  Lending Office,  (b) its office,  branch or affiliate located at its
address  identified  on the  Register  (as defined in Section  15.10(b))  as its
                                                      -----------------
Eurodollar Lending Office, or (c) such other office, branch or affiliate of such
Bank as it may hereafter designate as its Eurodollar Lending Office by notice to
Borrower and Administrative Agent.

     "EURODOLLAR  LOANS" means Loans that bear  interest at rates based upon the
      -----------------
Adjusted Eurodollar Rate.

     "EURODOLLAR  RATE" means,  for any Eurodollar  Loan for any Interest Period
      ----------------
therefor,  the rate per annum  (rounded  upwards,  if necessary,  to the nearest
1/100 of 1%)  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 (2) Eurodollar Business Days prior to the first day

                                      10-9

<PAGE>

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 any Eurodollar  Loan for any Interest  Period  therefor,  the rate per annum
(rounded upwards, if necessary, to the nearest 1/100 of 1%) appearing on Reuters
Screen LIBO Page as the London interbank offered rate for deposits in Dollars at
approximately 11:00 a.m. (London time) two (2) Eurodollar Business Days prior to
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
(rounded upwards, if necessary, to the nearest 1/100 of 1%).

     "EVENTS OF DEFAULT" has the meaning set forth in Section 12.1.
      -----------------                               ------------

     "EXCHANGE ACT" means the Securities Exchange Act of 1934, as amended.
      ------------

     "EXHIBIT"  refers to an exhibit attached to this Agreement and incorporated
      -------
herein by reference, unless specifically provided otherwise.

     "EXISTING  CREDIT  AGREEMENT" has the meaning  assigned to such term in the
      ---------------------------
recitals  hereto.

     "EXISTING  MORTGAGES"  means  the  mortgages,   deeds  of  trust,  security
      -------------------
agreements, assignments, pledges and other documents, instruments and agreements
described on Schedule 2.2 hereto, which establish Liens on certain of Borrower's
             ------------
Mineral  Interests to secure  Borrower's  obligations  under the Existing Credit
Agreement.

     "EXISTING  RESERVE  REPORT" means,  collectively,  (i) an  engineering  and
      -------------------------
economic  analysis of certain of the Borrowing  Base  Properties  prepared as of
June 30, 2000 by DeGolyer and MacNaughton,  and (ii) an engineering and economic
analysis of all  Borrowing  Base  Properties  not covered by the Reserve  Report
described  in clause (i),  prepared as of June 30, 2000 by  Borrower's  in-house
staff.

     "FACILITY GUARANTY" means a Guaranty substantially in the form of Exhibit B
      -----------------                                                ---------
attached  hereto which may be executed by a  Subsidiary  of Borrower in favor of
Banks,  pursuant to which such  Subsidiary  of Borrower  guarantees  payment and
performance in full of the Obligations.

     "FEDERAL  FUNDS  RATE"  means,  for any day,  the rate per  annum  (rounded
      --------------------
upwards, if necessary, to the nearest 1/100 of 1%) equal to the weighted average
of the rates on overnight Federal funds transactions with members of the Federal
Reserve  System  arranged by Federal  funds brokers on such day, as published by
the  Federal  Reserve  Bank  of New  York  on the  Domestic  Business  Day  next
succeeding  such day;  provided that (a) if the day for which such rate is to be
                       -------- ----
determined  is not a Domestic  Business Day, the Federal Funds Rate for such day
shall be such rate on such transactions on the next preceding  Domestic Business
Day as so published on the next  succeeding  Domestic  Business  Day, and (b) if
such rate is not so published on such next succeeding Domestic Business Day, the
Federal   Funds  Rate  for  any  day  shall  be  the  average  rate  charged  to
Administrative  Agent  on  such  day  on  such  transactions  as  determined  by
Administrative Agent.

                                     10-10
<PAGE>

     "FINANCIAL  OFFICER"  of any  Person  means  its Chief  Financial  Officer;
      ------------------
provided,  that if no Person serves in such capacity,  "FINANCIAL OFFICER" shall
                                                        -----------------
mean the highest ranking  executive  officer of such Person with  responsibility
for accounting, financial reporting, cash management and similar functions.

     "FISCAL QUARTER" means the three (3) month periods ending on March 31, June
      --------------
30, September 30 and December 31 of each Fiscal Year.

     "FISCAL YEAR" means a twelve (12) month period ending December 31.
      -----------

     "GAAP" means those generally accepted  accounting  principles and practices
      ----
which are  recognized as such by the  Securities  and Exchange  Commission,  the
American Institute of Certified Public Accountants acting through its Accounting
Principles Board or by the Financial Accounting Standards Board or through other
appropriate boards or committees thereof and which are consistently  applied for
all periods  after the  Closing  Date so as to  properly  reflect the  financial
condition,  and the results of operations and changes in financial position,  of
Borrower and its Consolidated Subsidiaries, except that any accounting principle
or  practice  required  to be  changed  by  the  said  Securities  and  Exchange
Commission,  Accounting Principles Board or Financial Accounting Standards Board
(or other  appropriate  board or  committee  thereof)  in order to continue as a
generally accepted accounting principle or practice may be so changed.

     "GAS BALANCING  AGREEMENT"  means any agreement or arrangement  whereby any
      ------------------------
Credit Party,  or any other party having an interest in any  Hydrocarbons  to be
produced from Mineral Interests in which any Credit Party owns an interest,  has
a right to take more than its proportionate share of production therefrom.

     "GOVERNMENTAL  AUTHORITY"  means  any  court  or  governmental  department,
      -----------------------
commission,  board,  bureau,  agency, or instrumentality of any nation or of any
province, state, commonwealth, nation, territory, possession, county, parish, or
municipality, whether now or hereafter constituted or existing.

     "GUARANTEE" by any Person means any obligation, contingent or otherwise, of
      ---------
such Person directly or indirectly  guaranteeing any Debt or other obligation of
any other Person and,  without  limiting the  generality of the  foregoing,  any
obligation,  direct or indirect,  contingent or otherwise, of such Person (a) to
purchase or pay (or advance or supply funds for the purchase or payment of) such
Debt or other obligation (whether arising by virtue of partnership arrangements,
by agreement to keep-well, to purchase assets, goods, securities or services, to
take-or-pay,  or to maintain financial statement conditions, by "comfort letter"
or other  similar  undertaking  of support or otherwise) or (b) entered into for
the purpose of  assuring  in any other  manner the obligee of such Debt or other
obligation  of the payment  thereof or to protect such  obligee  against loss in
respect thereof (in whole or in part), provided, that the term "GUARANTEE" shall
                                       --------  ----           ---------
not include  endorsements  for  collection or deposit in the ordinary  course of
business.

     "HAZARDOUS  DISCHARGE"  means any releasing,  spilling,  leaking,  pumping,
      --------------------
pouring,  emitting,  emptying,   discharging,   injecting,  escaping,  leaching,
disposing or dumping of any Hazardous  Substance  from or onto any real property
owned,  leased or operated at any time by any Credit Party or any real  property
owned, leased or operated by any other party.


                                      10-11

<PAGE>

     "HAZARDOUS  SUBSTANCE"  means any  pollutant,  toxic  substance,  hazardous
      --------------------
waste,  compound,  element or  chemical  that is defined  as  hazardous,  toxic,
noxious, dangerous or infectious pursuant to any Applicable Environmental Law or
which is otherwise regulated by any Applicable  Environmental Law or is required
to  be  investigated   and/or  remediated  by  or  pursuant  to  any  Applicable
Environmental Law.

     "HEDGE  AGREEMENTS"  means,   collectively,   any  agreement,   instrument,
      -----------------
arrangement or schedule or supplement thereto evidencing any Hedge Transaction.

     "HEDGE  TRANSACTION" means any commodity,  interest rate, currency or other
      ------------------
swap,  option,  collar,  futures contract or other contract  pursuant to which a
Person  hedges  risks  related to commodity  prices,  interest  rates,  currency
exchange  rates,  securities  prices  or  financial  market  conditions.   Hedge
Transactions expressly includes Oil and Gas Hedge Transactions.

     "HYDROCARBONS"  means oil, gas,  casinghead  gas, drip  gasolines,  natural
      ------------
gasoline, condensate,  distillate, and all other liquid and gaseous hydrocarbons
produced  or  to  be  produced  in  conjunction  therewith,  and  all  products,
by-products  and  all  other  substances  derived  therefrom  or the  processing
thereof, and all other minerals and substances,  including,  but not limited to,
sulphur,  lignite, coal, uranium, thorium, iron, geothermal steam, water, carbon
dioxide,  helium, and any and all other minerals,  ores, or substances of value,
and the products and proceeds therefrom,  including, without limitation, all gas
resulting from the in-situ combustion of coal or lignite.

     "IMMATERIAL  TITLE  DEFICIENCIES"  means,  with respect to  Borrowing  Base
      -------------------------------
Properties,  defects or clouds on title,  discrepancies  in reported net revenue
and  working   interest   ownership   percentages  and  other  Liens,   defects,
discrepancies  and  similar  matters  which  do  not,  individually  or  in  the
aggregate, affect Borrowing Base Properties with a Recognized Value greater than
five  percent  (5%)  of the  Recognized  Value  of all of  such  Borrowing  Base
Properties.

     "INDIRECT  SUBSIDIARY" has the meaning given such term in the definition of
      --------------------
"SUBSIDIARY PLEDGE AGREEMENT."
 ---------------------------

     "INITIAL   BORROWING  BASE"  means  a  Borrowing  Base  in  the  amount  of
      -------------------------
$110,000,000,  which  shall be in effect  during  the period  commencing  on the
Closing Date and continuing  until the first  Redetermination  after the Closing
Date.

     "INITIAL  CONFORMING  BORROWING BASE" means a Conforming  Borrowing Base in
      -----------------------------------
the  amount  of  $110,000,000,  which  shall  be in  effect  during  the  period
commencing on the Closing Date and  continuing  until the first  Redetermination
after the Closing Date.

     "INITIAL REQUIRED RESERVE VALUE" means Proved Mineral Interests that have a
      ------------------------------
Recognized Value of not less than seventy-three  percent (73%) of the Recognized
Value of all Proved Mineral Interests held by Borrower and its Subsidiaries.

     "INTEREST PERIOD" means, with respect to each Eurodollar Borrowing and each
      ---------------
Continuation of Eurodollar  Loans and each Conversion of all or part of the Base
Rate  Loan to  Eurodollar  Loans,  the  period  commencing  on the  date of such
Borrowing,  Continuation or Conversion and ending one (1), two (2), three (3) or
six (6),  and,  if  available  to all  Banks,  nine

                                     10-12

<PAGE>

(9) or twelve (12) months  thereafter,  as Borrower may elect in the  applicable
Request for Borrowing or Notice of Continuation or Conversion; provided, that:
                                                               --------  ----

               (a) any Interest  Period which would otherwise end on a day which
               is not a  Eurodollar  Business  Day shall be extended to the next
               succeeding   Eurodollar   Business  Day  unless  such  Eurodollar
               Business Day falls in another  calendar month, in which case such
               Interest  Period  shall  end on  the  next  preceding  Eurodollar
               Business Day;

               (b) any  Interest  Period  which  begins  on the last  Eurodollar
               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,  subject to clause (c) below, end
               on the last Eurodollar Business Day of a calendar month;

               (c) if any Interest  Period  includes a date on which any payment
               of  principal  of the  Eurodollar  Loans which are the subject of
               such Borrowing, Continuation or Conversion is required to be made
               hereunder,  but does not end on such date, then (i) the principal
               amount of such  Eurodollar  Loans  required  to be repaid on such
               date shall have an Interest  Period ending on such date, and (ii)
               the  remainder  of  each  such  Eurodollar  Loans  shall  have an
               Interest  Period  determined  as  set  forth  above;  and

               (d) no Interest Period shall extend past the Termination Date.

     "INVESTMENT"  means,  with  respect  to  any  Person,  any  loan,  advance,
      ----------
extension of credit,  capital  contribution to, investment in or purchase of the
stock or other securities of, or interests in, any other Person; provided, that,
                                                                 --------  ----
"INVESTMENT"  shall not include  current  customer and trade  accounts which are
 ----------
payable in accordance with customary trade terms.

     "LAWS"  means  all  applicable  statutes,  laws,  ordinances,  regulations,
      ----
orders,  writs,  injunctions,  or decrees of any  state,  commonwealth,  nation,
territory,  possession,  county, township, parish,  municipality or Governmental
Authority.

     "LENDING  OFFICE" means, as to any Bank, its Domestic Lending Office or its
      ---------------
Eurodollar Lending Office, as the context may require.

     "LETTER  OF  CREDIT  EXPOSURE"  of any Bank  means  such  Bank's  aggregate
      ----------------------------
participation in the unfunded portion and the funded but unreimbursed portion of
Letters of Credit outstanding at any time.

     "LETTER OF CREDIT FEE" means,  with respect to any Letter of Credit  issued
      --------------------
hereunder,  a fee in an  amount  equal  to the  greater  of (a)  $500,  or (b) a
percentage  of the stated amount of such Letter of Credit  (calculated  on a per
annum basis based on the stated  term of such  Letter of Credit)  determined  by
reference to the ratio of the  Outstanding  Credit to the  Conforming  Borrowing
Base in effect on the date such  Letter of Credit is issued in  accordance  with
the table below:


                                     10-13

<PAGE>

<TABLE>
<CAPTION>
   Ratio of Outstanding Credit to         Per Annum Letter of Credit Fee
     Conforming Borrowing Base                      Percentage
     <S>                                              <C>
            <=. 50 to 1                               1.250%
     >. 50 to 1 and <= .75 to 1                       1.500%
     >. 75 to 1 and <= .90 to 1                       1.750%
     > .90 to 1 and <= 1.0 to 1                       2.000%
             > 1.0 to 1                               2.375%
==================================== =========================================
</TABLE>

     "LETTER OF CREDIT FRONTING FEE" means, with respect to any Letter of Credit
      -----------------------------
issued  hereunder with a stated amount of $1,000,000 or greater,  a fee equal to
one eighth of one percent  (.125%) per annum of the stated amount of such Letter
of Credit.

     "LETTERS  OF  CREDIT"  means  letters of credit  issued for the  account of
      -------------------
Borrower pursuant to Section 3.1(b).
                     --------------

     "LIEN"  means,  with  respect to any asset,  any  mortgage,  lien,  pledge,
      ----
charge,  security  interest,  financing  statement or encumbrance of any kind in
respect of such asset.  For the purposes of this  Agreement,  the Credit Parties
shall be deemed to own  subject to a Lien any asset  which is  acquired  or held
subject  to the  interest  of a vendor or  lessor  under  any  conditional  sale
agreement,  capital lease or other title  retention  agreement  relating to such
asset.

     "LOAN PAPERS" means this Agreement, the Notes, each Facility Guaranty which
      -----------
may now or hereafter be executed,  each Borrower Pledge  Agreement which may now
or hereafter be executed,  each  Subsidiary  Pledge  Agreement  which may now or
hereafter be executed,  the Existing  Mortgages (as amended by the Amendments to
Existing  Mortgages),  all  Mortgages  now or at any  time  hereafter  delivered
pursuant to Section 6.1, and all other  certificates,  documents or  instruments
            -----------
delivered in  connection  with this  Agreement,  as the foregoing may be amended
from time to time.

     "MARGIN REGULATIONS" means Regulations T, U and X of the Board of Governors
      ------------------
of the Federal Reserve System, as in effect from time to time.

     "MARGIN STOCK" means "margin stock" as defined in Regulation U.
      ------------

     "MARINE"  means  Denbury  Marine  L.L.C.,  a  Louisiana  limited  liability
      ------
company, which is a wholly owned Subsidiary of Borrower.

     "MATERIAL ADVERSE CHANGE" means any circumstance or event that has or would
      -----------------------
reasonably be expected to have a Material Adverse Effect.

     "MATERIAL  ADVERSE  EFFECT"  means a  material  adverse  effect  on (a) the
      -------------------------
assets, liabilities,  financial condition, results of operations or prospects of
any Credit  Party,  or the  Credit  Parties  taken as a whole,  (b) the right or
ability  of any  Credit  Party to  fully,  completely  and  timely  perform  its
obligations  under the Loan Papers,  (c) the validity or  enforceability  of any
Loan

                                     10-14

<PAGE>

Paper  against any Credit Party which is a party  thereto,  or (d) the validity,
perfection  or priority of any  material  Lien  intended to be created  under or
pursuant to any Loan Paper to secure the Obligations.

     "MATERIAL   AGREEMENT"  means  any  material  written  or  oral  agreement,
      --------------------
contract,  commitment,  or  understanding to which a Person is a party, by which
such  Person is  directly or  indirectly  bound,  or to which any assets of such
Person may be  subject,  which is not  cancelable  by such Person upon notice of
thirty  (30) days or less  without  liability  for  further  payment  other than
nominal penalty.

     "MATERIAL  GAS  IMBALANCE"   means,  with  respect  to  all  Gas  Balancing
      ------------------------
Agreements to which any Credit Party is a party or by which any Mineral Interest
owned by any Credit Party is bound,  a net gas  imbalance to any Credit Party in
excess of $1,000,000.

     "MAXIMUM  LAWFUL RATE" means,  for each Bank,  the maximum rate (or, if the
      --------------------
context so permits or requires,  an amount  calculated at such rate) of interest
which,  at the time in  question  would not cause the  interest  charged  on the
portion  of the  Revolving  Loan owed to such  Bank at such  time to exceed  the
maximum amount which such Bank would be allowed to contract for,  charge,  take,
reserve,  or receive under  applicable  Laws after taking into  account,  to the
extent  required by applicable  Laws,  any and all relevant  payments or charges
under  the  Loan  Papers.  To the  extent  the Laws of the  State  of Texas  are
applicable  for purposes of  determining  the "MAXIMUM  LAWFUL  RATE," such term
                                               ---------------------
shall  mean the  "indicated  rate  ceiling"  from time to time in  effect  under
Chapter 303 of the Texas Finance Code, as amended,  substituted for or restated,
or, if permitted by applicable  Law and effective upon the giving of the notices
required  by such  Chapter  303 (or  effective  upon any  other  date  otherwise
specified by applicable  Law), the "quarterly  ceiling" or "annualized  ceiling"
from time to time in effect  under such Chapter  303,  whichever  Administrative
Agent (with the approval of Required  Banks) shall elect to  substitute  for the
"indicated  rate ceiling," and vice versa,  each such  substitution  to have the
effect provided in such Chapter 303, and Administrative Agent (with the approval
of Required Banks) shall be entitled to make such election from time to time and
one or more times and, without notice to Borrower,  to leave any such substitute
rate in effect for subsequent periods in accordance with such Chapter 303.

     "MINERAL INTERESTS" means rights, estates,  titles, and interests in and to
      -----------------
oil and gas leases and any oil and gas interests, royalty and overriding royalty
interest,  production payment, net profits interests, oil and gas fee interests,
and other rights therein,  including,  without  limitation,  any reversionary or
carried interests relating to the foregoing,  together with rights,  titles, and
interests   created  by  or  arising   under  the  terms  of  any   unitization,
communization,  and pooling  agreements  or  arrangements,  and all  properties,
rights and interests covered thereby,  whether arising by contract, by order, or
by  operation  of Laws,  which now or  hereafter  include all or any part of the
foregoing.

     "MORTGAGES" means all mortgages,  deeds of trust,  amendments to mortgages,
      ---------
security agreements,  assignments of production,  pledge agreements,  collateral
mortgages,  collateral  chattel  mortgages,  collateral  assignments,  financing
statements and other documents, instruments and agreements evidencing, creating,
perfecting or otherwise  establishing  the Liens required by


                                     10-15

<PAGE>
Section 6.1 hereof. All Mortgages shall be in form and substance satisfactory to
-----------
Administrative Agent in its sole discretion.

     "NET CASH  PROCEEDS"  means (a) the gross  proceeds  received by any Credit
      ------------------
Party  from  any  Securities  Offering,  less  (b)  underwriters  discounts  and
commissions,  legal,  accounting  and other  professional  fees and expenses and
other usual and  customary  transaction  costs,  in each case only to the extent
paid or payable by a Credit Party in cash.

     "NOTE" means a promissory note of Borrower  payable to the order of a Bank,
      ----
in  substantially  the form of Exhibit C hereto,  in the  amount of such  Bank's
                               ---------
Commitment,  evidencing  the  obligation  of  Borrower to repay to such Bank its
Commitment  Percentage of the Revolving Loan,  together with all  modifications,
extensions,  renewals, and rearrangements thereof, and "NOTES" means all of such
                                                        -----
Notes collectively.

     "NOTICE OF CONTINUATION OR CONVERSION" has the meaning set forth in Section
      ------------------------------------                               -------
3.5(c).
------

     "OBLIGATIONS"  means all present and future  indebtedness,  obligations and
      -----------
liabilities,  and all renewals and extensions  thereof,  or any part thereof, of
each Credit Party to Administrative Agent or to any Bank or any Affiliate of any
Bank arising  pursuant to the Loan Papers or pursuant to any Hedge  Agreement or
Hedge  Transaction  entered into with any Bank or any Affiliate of any Bank, and
all interest accrued thereon and costs,  expenses,  and attorneys' fees incurred
in  the   enforcement  or  collection   thereof,   regardless  of  whether  such
indebtedness,   obligations  and  liabilities  are  direct,   indirect,   fixed,
contingent, liquidated, unliquidated, joint, several or joint and several.

     "OIL & GAS HEDGE TRANSACTION"  means a Hedge Transaction  pursuant to which
      ---------------------------
any  Person  hedges the price to be  received  by it for  future  production  of
Hydrocarbons.

     "OUTSTANDING  CREDIT"  means,  on any  date,  the sum of (a) the  aggregate
      -------------------
outstanding  Letter of Credit  Exposure  on such date  including  the  Letter of
Credit  Exposure  attributable  to  Letters of Credit to be issued on such date,
plus (b) the aggregate  outstanding  principal  balance of the Revolving Loan on
such date, including the amount of any Borrowing to be made on such date.

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

     "PERMITTED ENCUMBRANCES" means with respect to any asset:
      ----------------------

               (a) Liens securing the Obligations;

               (b) minor  defects in title  which do not  secure the  payment of
               money and otherwise have no material  adverse effect on the value
               or the operation of the subject property, and for the purposes of
               this Agreement, a minor defect in title shall include, but not be
               limited  to,  easements,   rights-of-way,   servitudes,  permits,
               surface  leases  and other  similar  rights in respect of surface
               operations,   and  easements  for  pipelines,   streets,  alleys,
               highways,  telephone  lines,  power  lines,  railways  and  other
               easements and rights-of-way, on, over or in respect of any of

                                     10-16


<PAGE>


               the properties of any Credit Party that are  customarily  granted
               in the oil and gas industry;

               (c) inchoate  statutory or operators' Liens securing  obligations
               for labor, services,  materials and supplies furnished to Mineral
               Interests  which  are  not  delinquent   (except  to  the  extent
               permitted by Section 9.7);
                            -----------

               (d) mechanic's, materialmen's,  warehouseman's,  journeyman's and
               carrier's  Liens and other  similar Liens arising by operation of
               Law in the ordinary  course of business  which are not delinquent
               (except to the extent permitted by Section 9.7);
                                                  -----------

               (e)  Liens  for  Taxes  or  assessments  not  yet  due or not yet
               delinquent,  or, if delinquent,  that are being contested in good
               faith in the normal course of business by appropriate  action, as
               permitted by Section 9.7;
                            -----------

               (f) lease burdens  payable to third parties which are deducted in
               the calculation of discounted present value in the Reserve Report
               including,  without limitation, any royalty,  overriding royalty,
               net profits  interest,  production  payment,  carried interest or
               reversionary working interest;


               (g)  "Permitted  Encumbrances"  as that  term is  defined  in the
               Existing Mortgages; and

               (h) Liens, charges and encumbrances upon Borrower's assets, other
               than Proved Mineral  Interests,  which in the  aggregate,  do not
               have a value in excess  of  $1,000,000.

     "PERMITTED  INVESTMENTS" means (a) readily marketable direct obligations of
      ----------------------
the United  States of America (or  investments  in mutual funds or similar funds
which invest  solely in such  obligations),  (b) fully insured time deposits and
certificates  of deposit with  maturities of one year or less of any  commercial
bank  operating  in the United  States  having  capital and surplus in excess of
$500,000,000,  (c)  commercial  paper  of a  domestic  issuer  if at the time of
purchase  such paper is rated in one of the two highest  ratings  categories  of
Standard and Poor's Corporation or Moody's Investors Service, (d) Investments by
any  Credit  Party in a  Subsidiary  of  Borrower  that has  provided a Facility
Guaranty  and the  Equity  of which has been  pledged  to  Administrative  Agent
pursuant to a Borrower Pledge Agreement or a Subsidiary  Pledge  Agreement,  and
(e)  other  Investments;  provided,  that,  the  aggregate  amount  of all other
                          --------   ----
Investments  made pursuant to this clause (e)  outstanding at any time shall not
exceed $1,000,000 (measured on a cost basis).

     "PERMITTED SUBORDINATE DEBT" means Debt of Borrower resulting from a single
      --------------------------
issue of  Borrower's  9%  Senior  Subordinated  Notes  Due 2008 in an  aggregate
outstanding principal balance of not greater than $125,000,000, and which (a) is
fully subordinated to the Obligations pursuant to subordination provisions which
have been  approved  by  Required  Banks,  and (b) is not  subject  to  negative
covenants or events of default (or other  provisions  which have the same effect
as  negative  covenants  or events of default)  which have not been  approved by
Required Banks.

                                     10-17

<PAGE>

     "PERSON" means an individual, a corporation, a partnership, an association,
      ------
a trust or any other entity or organization, including a Government Authority.

     "PLAN" means an employee benefit plan within the meaning of section 3(3) of
      ----
ERISA,  and  any  other  similar  plan,  policy  or  arrangement,  including  an
employment  contract,  whether formal or informal and whether legally binding or
not,  under which any Credit  Party or an ERISA  Affiliate of a Credit Party has
any  current or future  obligation  or  liability  or under which any present or
former  employee of any Credit Party or an ERISA Affiliate of a Credit Party, or
such present or former employee's  dependents or beneficiaries,  has any current
or future  right to benefits  resulting  from the  present or former  employee's
employment  relationship with any Credit Party or an ERISA Affiliate of a Credit
Party.

     "PRIME RATE" means the per annum rate of interest  established from time to
      ----------
time by Administrative Agent as its prime rate, which rate may not be the lowest
rate of interest charged by Administrative Agent to its customers.

     "PROVED MINERAL  INTERESTS" means,  collectively,  Proved Producing Mineral
      -------------------------
Interests, Proved Nonproducing Mineral Interests, and Proved Undeveloped Mineral
Interests.

     "PROVED  NONPRODUCING  MINERAL INTERESTS" means all Mineral Interests which
      ---------------------------------------
constitute proved developed nonproducing reserves.

     "PROVED  PRODUCING  MINERAL  INTERESTS"  means all Mineral  Interests which
      -------------------------------------
constitute proved developed producing reserves.

     "PROVED  UNDEVELOPED  MINERAL  INTERESTS" means all Mineral Interests which
      ---------------------------------------
constitute proved undeveloped reserves.

     "QUALIFIED  PURPOSE"  means (i) the purchase by Borrower of Proved  Mineral
      ------------------
Interests, or (ii) capital expenditures made by Borrower to maintain, enhance or
develop Proved Mineral Interests owned by Borrower;  provided, that, the portion
                                                     --------  ----
of the aggregate  amount of all  Borrowings  made during any period during which
Section  10.14 is in effect  hereunder  which is  utilized  to  purchase  Proved
--------------
Mineral  Interests  which is in excess  of the  "QUALIFIED  AMOUNT"  will not be
                                                 -----------------
deemed to be utilized  for a "Qualified  Purpose."  As used  herein,  "qualified
amount"  means,  with  respect to Proved  Mineral  Interests  acquired  with the
proceeds of  Borrowings  made during any period during which Section 10.14 is in
                                                             -------------
effect  hereunder,  an  amount  equal  to  two  hundred  percent  (200%)  of the
Recognized  Value  of  that  portion  of such  Proved  Mineral  Interests  which
constitute Proved Producing Mineral Interests.

     "QUARTERLY  DATE" means the last day of each  March,  June,  September  and
      ---------------
December.

     "RECOGNIZED VALUE" means, with respect to Mineral Interests, the portion of
      ----------------
the Borrowing  Base which Bank of America  attributes to such Mineral  Interests
for purposes of the most recent  redetermination  of the Borrowing Base pursuant
to Article V hereof (or for purposes of determining  the initial  Borrowing Base
   ---------
in the event no such  redetermination  has occurred),  based upon the discounted
present value of the estimated net cash flow to be realized from the  production
of Hydrocarbons from such Mineral Interests.

                                     10-18

<PAGE>

     "REDETERMINATION"   means  any   Scheduled   Redetermination   or   Special
      ---------------
Redetermination.

     "REDETERMINATION   DATE"   means  (a)  with   respect   to  any   Scheduled
      ----------------------
Redetermination,  each October 1 and April 1, commencing  April 1, 2001, and (b)
with  respect to any Special  Redetermination,  the first day of the first month
which is not less than twenty (20) Domestic  Business Days following the date of
a request for a Special Redetermination.

     "REGULATION A" means  Regulation A of the Board of Governors of the Federal
      ------------
Reserve System, 12 C.F.R. Part 221, as in effect from time to time.

     "REGULATION D" means  Regulation D of the Board of Governors of the Federal
      ------------
Reserve System, 12 C.F.R. Part 221, as in effect from time to time.

     "REGULATION U" means  Regulation U of the Board of Governors of the Federal
      ------------
Reserve System, 12 C.F.R. Part 221, as in effect from time to time.

     "REQUEST FOR BORROWING" has the meaning set forth in Section 3.2(a).
      ---------------------                               --------------

     "REQUEST FOR LETTER OF CREDIT" has the meaning set forth in Section 3.3(a).
      ----------------------------                               --------------

     "REQUIRED  BANKS" means Banks  holding at least  sixty-six  and  two-thirds
      ---------------
percent (66 2/3%) of the Total Commitment.

     "REQUIRED CONSOLIDATED TANGIBLE NET WORTH" means,  initially,  $50,000,000;
      ----------------------------------------
provided, that, the Required Consolidated Tangible Net Worth shall increase (but
--------  ----
not decrease) above the Required  Consolidated  Tangible Net Worth previously in
effect  pursuant  to this  definition  (i) on each  Quarterly  Date  (commencing
December  31,  2000) by an amount  equal to fifty  percent  (50%) of  Borrower's
Consolidated  Net Income for the Fiscal Quarter then ended, and (ii) on the date
of any issuance by Borrower of its equity securities by an amount equal to fifty
percent (50%) of the net proceeds received by Borrower from the issuance of such
securities.

     "REQUIRED  RESERVE  VALUE"  means  Proved  Mineral  Interests  that  have a
      ------------------------
Recognized  Value of not less than  eighty-five  percent (85%) of the Recognized
Value of all Proved Mineral Interests held by Borrower and its Subsidiaries.

     "RESERVE REPORT" means an unsuperseded  engineering analysis of the Mineral
      --------------
Interests  owned by Borrower,  in form and  substance  reasonably  acceptable to
Required Banks,  prepared in accordance with customary and prudent  practices in
the petroleum  engineering  industry and Financial  Accounting  Standards  Board
Statement  69. Each  Reserve  Report  required to be delivered by February 28 of
each year  pursuant to Section 5.1 shall be prepared by the  Approved  Petroleum
                       -----------
Engineer. Each other Reserve Report shall be prepared by either (i) the Approved
Petroleum  Engineer,  or (ii)  Borrower's  in-house staff.  Notwithstanding  the
foregoing, in connection with any Special Redetermination requested by Borrower,
the Reserve  Report shall be in form and scope  mutually  acceptable to Borrower
and Required  Banks.  Until  superseded,  the Existing  Reserve  Report shall be
considered the Reserve Report.

     "RESERVE  REQUIREMENT"  means,  at any  time,  the  maximum  rate at  which
      --------------------
reserves (including, without limitation, any marginal, special, supplemental, or
emergency reserves) are

                                     10-19

<PAGE>

required  to be  maintained  under  regulations  issued from time to time by the
Board of Governors of the Federal  Reserve  System (or any  successor) by member
banks of the Federal  Reserve  System  against in the case of Eurodollar  Loans,
"Eurocurrency  liabilities"  (as such  term is used in  Regulation  D).  Without
limiting the effect of the foregoing,  the Reserve Requirement shall reflect any
other  reserves  required to be  maintained by such member banks with respect to
(i) any category of liabilities  which  includes  deposits by reference to which
the  Adjusted  Eurodollar  Rate is to be  determined,  or (ii) any  category  of
extensions  of  credit or other  assets  which  include  Eurodollar  Loans.  The
Adjusted  Eurodollar  Rate  shall  be  adjusted  automatically  on and as of the
effective date of any change in the Reserve Requirement.

     "RESTRICTED   PAYMENT"  means,   with  respect  to  any  Person,   (a)  any
      --------------------
Distribution  by  such  Person,  (b)  the  retirement,  redemption,  defeasance,
repurchase  or  prepayment  prior to  scheduled  maturity  by such Person or any
Affiliate of such Person of any Debt of such Person,  or (c) except as otherwise
approved by Required Banks, the retirement, redemption or payment by Borrower or
any  affiliate  of  Borrower  of any  part  of the  principal  of the  Permitted
Subordinate Debt at any time prior to the termination of all Commitments and the
payment and performance in full of the Obligations.

     "REVOLVING LOAN" means the revolving  credit loan in an amount  outstanding
      --------------
at any time not to exceed the amount of the Total Commitment then in effect less
the amount of the Letter Credit Exposure then outstanding to be made by Banks to
Borrower  in  accordance  with  Section 3.1 hereof.  The  Revolving  Loan may be
                                -----------
comprised of the Base Rate Loan and one or more Eurodollar Loans as Borrower may
select in a Request for Borrowing or a Notice of Continuation or Conversion.

     "SCHEDULE"  means a "schedule"  attached to this Agreement and incorporated
      --------
herein by reference, unless specifically indicated otherwise.

     "SCHEDULED REDETERMINATION" means any Redetermination of the Borrowing Base
      -------------------------
and the Conforming Borrowing Base pursuant to Section 5.2.
                                              -----------

     "SECTION"  refers to a "section" or "subsection"  of this Agreement  unless
      -------
specifically indicated otherwise.

     "SECURITIES  OFFERING"  means the  issuance or sale by any Credit  Party of
      --------------------
Debt securities at any time on or after the Closing Date.

     "SOLE LEAD ARRANGER"  means Banc of America  Securities LLC in its capacity
      ------------------
as sole  lead  arranger  for the  credit  facility  hereunder  or any  successor
thereto.

     "SPECIAL  REDETERMINATION"  means any Redetermination of the Borrowing Base
      ------------------------
pursuant to Section 5.3.
            -----------

     "SUBSIDIARY"  means,  for any Person,  any  corporation  or other entity of
      ----------
which  securities or other ownership  interests  having ordinary voting power to
elect a majority of the board of directors or other persons  performing  similar
functions  (including  that of a general  partner)  are at the time  directly or
indirectly  owned,  collectively,  by such Person and any  Subsidiaries  of such
Person. The term "SUBSIDIARY" shall include Subsidiaries of Subsidiaries (and so
                  ----------
on).

                                     10-20
<PAGE>

     "SUBSIDIARY PLEDGE AGREEMENT" means a Pledge Agreement substantially in the
      ---------------------------
form of Exhibit E attached hereto (with applicable conforming changes) which may
        ---------
be executed by each existing and/or future  Subsidiary of Borrower to the extent
such Subsidiary owns any outstanding  Equity of any other Subsidiary of Borrower
(for purposes of this  definition and Section 6.1(d) hereof,  such Subsidiary is
                                      --------------
referred to herein and therein as an "INDIRECT  SUBSIDIARY"),  pursuant to which
                                      --------------------
such Indirect  Subsidiary shall pledge to Administrative  Agent, for the ratable
benefit  of  Banks,  all of the  issued  and  outstanding  Equity  owned by such
Indirect  Subsidiary of each  Subsidiary of such Indirect  Subsidiary  described
therein to secure the Obligations.

     "TAXES"  means  all  taxes,  assessments,  filing  or other  fees,  levies,
      -----
imposts,  duties,  deductions,  withholdings,  stamp taxes,  capital transaction
taxes,  foreign exchange taxes or other charges,  or other charges of any nature
whatsoever,  from time to time or at any time imposed by Law or any Governmental
Authority. "TAX" means any one of the foregoing.
            ---

     "TERMINATION DATE" means December 31, 2003.
      ----------------

     "TEXAS  PACIFIC  GROUP" means,  collectively,  TGP Partners,  L.P.,  T.G.P.
      ---------------------
Parallel, L.P., and any of their Affiliates.

     "TOTAL  COMMITMENT"  means  the  Commitments  of all  Banks  in an  initial
      -----------------
aggregate  amount of  $300,000,000  as such amount shall be reduced from time to
time pursuant to Section 3.8 and Section 3.9.
                 -----------     -----------

     "TRI" means  Tallahatchie  Resources,  Inc., a Texas corporation which is a
      ---
wholly owned Subsidiary of Borrower.

     "TYPE" means, with reference to a Revolving Loan, the  characterization  of
      ----
such  Revolving  Loan as the Base Rate Loan or a  Eurodollar  Loan  based on the
method by which the accrual of interest on such Revolving Loan is calculated.

     "UNPROVED  RESERVES" means Mineral Interests which do not constitute Proved
      ------------------
Mineral Interests.

     Section  2.2.  ACCOUNTING  TERMS  AND   DETERMINATIONS.   Unless  otherwise
                    ---------------------------------------
specified  herein,  all accounting  terms used herein shall be interpreted,  all
accounting  determinations hereunder shall be made, and all financial statements
required to be delivered  hereunder shall be expressed in U.S. dollars and shall
be prepared in accordance with GAAP, applied on a basis consistent with the most
recent   audited   consolidated   financial   statements  of  Borrower  and  its
Consolidated  Subsidiaries delivered to Banks except for changes concurred in by
Borrower's  independent  certified public accountants and which are disclosed to
Administrative Agent on the next date on which financial statements are required
to be delivered to Banks pursuant to Section 9.1(a) or Section 9.1(b);  provided
                                     --------------    --------------   --------
that,  unless Required Banks shall  otherwise  agree in writing,  no such change
----
shall  modify  or  affect  the  manner in which  compliance  with the  covenants
contained in Article XI are computed  such that all such  computations  shall be
             ---------
conducted  utilizing  financial  information  presented  consistently with prior
periods.

                                     10-21

<PAGE>

     Section 2.3.  PETROLEUM TERMS. As used herein, the terms "PROVED RESERVES,"
                   ---------------                             ---------------
"PROVED DEVELOPED  RESERVES,"  "PROVED DEVELOPED  PRODUCING  RESERVES,"  "PROVED
 --------------------------     -------------------------------------     ------
DEVELOPED  NONPRODUCING  RESERVES," and "PROVED  UNDEVELOPED  RESERVES" have the
---------------------------------        -----------------------------
meaning  given such terms from time to time and at the time in  question  by the
Society of Petroleum Engineers of the American Institute of Mining Engineers.

     Section 2.4. MONEY. Unless expressly stipulated  otherwise,  all references
                  -----
herein to "DOLLARS,"  "MONEY,"  "FUNDS,"  "PAYMENTS,"  "PREPAYMENTS"  or similar
           -------     -----     -----     --------     -----------
financial or monetary terms,  are references to currency of the United States of
America.

                                   ARTICLE III

                                   THE CREDIT
                                   ----------

     Section 3.1.    COMMITMENTS.
                     -----------

     (a) Each Bank severally agrees,  subject to Section 3.1(c), Section 7.1 and
                                                 --------------  -----------
Section 7.2 and the other terms and conditions set forth in this  Agreement,  to
-----------
lend to  Borrower  from  time to time  prior  to the  Termination  Date  amounts
requested  by  Borrower  not  to  exceed  in  the  aggregate  at  any  one  time
outstanding,  the amount of such Bank's Commitment reduced by an amount equal to
such Bank's Letter of Credit  Exposure.  Each Borrowing shall be in an aggregate
principal  amount of  $1,000,000  or any larger  integral  multiple  of $100,000
(except  that  any  Base  Rate  Borrowing  may  be in an  amount  equal  to  the
Availability  at such  time),  and (ii) shall be made from the Banks  ratably in
accordance  with  their  respective  Commitment  Percentages.   Subject  to  the
foregoing  limitations and the other provisions of this Agreement,  prior to the
Termination  Date Borrower may borrow under this Section  3.1(a),  repay amounts
                                                 ---------------
borrowed and request new Borrowings to be made under this Section 3.1(a).
                                                          --------------

     (b)  Administrative  Agent will, from time to time prior to the Termination
Date,  upon  request by  Borrower,  issue  Letters of Credit for the  account of
Borrower or any  Subsidiary of Borrower  designated by Borrower,  so long as (i)
the sum of (A) the total Letter of Credit  Exposure then  existing,  and (B) the
amount of the  requested  Letter of Credit does not exceed ten percent  (10%) of
the lesser of (y) the Total Commitment,  and (z) the Conforming  Borrowing Base,
and (ii)  Borrower  would be entitled to a Borrowing  under  Section  3.1(a) and
                                                             ---------------
Section  3.1(c) in the amount of the requested  Letter of Credit.  Not less than
---------------
three (3) Domestic  Business Days prior to the requested date of issuance of any
such Letter of Credit,  Borrower  (and any  Subsidiary  for whose  account  such
Letter of Credit is being issued)  shall  execute and deliver to  Administrative
Agent,  Administrative  Agent's  customary  letter of credit  application.  Each
Letter of Credit shall be in the minimum  amount of $10,000 and shall be in form
and substance acceptable to Administrative Agent. No Letter of Credit shall have
an expiration date later than the earlier of (i) the  Termination  Date, or (ii)
one (1) year from the date of issuance. Upon the date of issuance of a Letter of
Credit,  Administrative  Agent  shall be deemed to have sold to each other Bank,
and each  other  Bank shall be deemed to have  unconditionally  and  irrevocably
purchased from Administrative Agent, a non recourse participation in the related
Letter of Credit and Letter of Credit  Exposure equal to such Bank's  Commitment
Percentage of such Letter of Credit and Letter of Credit Exposure.  Upon request
of any Bank,  but not less  often than  quarterly,  Administrative  Agent  shall
provide  notice to each Bank by  telephone,  teletransmission


                                     10-22

<PAGE>

or telex setting forth each Letter of Credit issued and outstanding  pursuant to
the terms hereof and specifying the beneficiary and expiration date of each such
Letter of Credit,  each Bank's  percentage of each such Letter of Credit and the
actual dollar amount of each Bank's  participation held by Administrative  Agent
thereof for such Bank's account and risk. At the time of issuance of each Letter
of Credit,  Borrower shall pay to Administrative Agent in respect of such Letter
of Credit (a) the  applicable  Letter of Credit  Fee,  and (b) to the extent the
stated  amount of such Letter of Credit is equal to or in excess of  $1,000,000,
the  applicable  Letter of  Credit  Fronting  Fee.  Administrative  Agent  shall
distribute  the Letter of Credit Fee payable upon the issuance of each Letter of
Credit to Banks in accordance with their respective Commitment Percentages,  and
Administrative  Agent shall retain the Letter of Credit Fronting Fee for its own
account. Any (y) material amendment or modification, or (z) renewal or extension
of any Letter of Credit  shall be deemed to be the  issuance  of a new Letter of
Credit for  purposes of this  Section  3.1(b).  Notwithstanding  anything to the
                              ---------------
contrary  contained  herein,  Borrower  shall  pay to  Administrative  Agent  in
connection  with any  amendment or  modification  of any nature,  Administrative
Agent's  usual and  customary  fees for  amendments  or  modifications  to,  and
processing of, Letters of Credit.

     Immediately upon the occurrence of an Event of Default and the acceleration
of the Obligations  hereunder,  Borrower shall deposit with Administrative Agent
cash in such amounts as Administrative Agent may request, up to a maximum amount
equal  to the  aggregate  existing  Letter  of  Credit  Exposure  of all  Banks;
provided, that, in the case of any of the Events of Default specified in Section
--------  ----                                                           -------
12.1(g) or Section 12.1(h),  an amount equal to the aggregate existing Letter of
-------    ---------------
Credit  Exposure  of all Banks  shall be due and  payable  without any notice to
Borrower or any other act by  Administrative  Agent or any Bank.  Any amounts so
deposited shall be held by  Administrative  Agent for the ratable benefit of all
Banks as security for the  outstanding  Letter of Credit  Exposure and the other
Obligations,  and Borrower  will, in connection  therewith,  execute and deliver
such security  agreements in form and substance  satisfactory to  Administrative
Agent which Administrative  Agent may, in its discretion,  require. As drafts or
demands  for payment are  presented  under any Letter of Credit,  Administrative
Agent shall apply such cash to satisfy such drafts or demands.  When all Letters
of Credit have expired and the Obligations have been repaid in full (and no Bank
has any  obligation to lend or issue Letters of Credit  hereunder) or such Event
of Default has been cured to the satisfaction of Required Banks,  Administrative
Agent shall release to Borrower any remaining cash deposited  under this Section
                                                                         -------
3.1(b). Whenever Borrower is required to make deposits under this Section 3.1(b)
------                                                            --------------
and fails to do so on the day such deposit is due,  Administrative  Agent or any
Bank may, without notice to Borrower,  make such deposit (whether by application
of proceeds of any  collateral  for the  Obligations,  by  transfers  from other
accounts  maintained with any Bank or otherwise)  using any funds then available
to any Bank of any Credit  Party,  any  guarantor  or any other party liable for
repayment of the Obligations.

     Notwithstanding  anything to the contrary contained herein, Borrower hereby
agrees  to   reimburse   Administrative   Agent   immediately   upon  demand  by
Administrative  Agent,  and in immediately  available  funds, for any payment or
disbursement made by  Administrative  Agent under any Letter of Credit issued by
it.  Payment  shall be made by Borrower  with  interest on the amount so paid or
disbursed by  Administrative  Agent from and  including the date payment is made
under any Letter of Credit to and including  the date of payment,  at the lesser
of (i) the Maximum  Lawful Rate, or (ii) the Default Rate.  The  obligations  of
Borrower  under this


                                     10-23

<PAGE>

paragraph  will  continue  until all  Letters  of Credit  have  expired  and all
reimbursement  obligations  with  respect  thereto  have  been  paid  in full by
Borrower and until all other Obligations shall have been paid in full.

     Borrower shall be obligated to reimburse  Administrative  Agent upon demand
for all  amounts  paid under  Letters of Credit as set forth in the  immediately
preceding paragraph hereof; provided,  however, if Borrower for any reason fails
                            --------   -------
to reimburse  Administrative  Agent in full upon demand,  Banks shall  reimburse
Administrative  Agent in accordance with each Banks'  Commitment  Percentage for
amounts  due and  unpaid  from  Borrower  as set  forth  hereinbelow;  provided,
                                                                       --------
however,  that no such  reimbursement  made by Banks shall discharge  Borrower's
-------
obligations to reimburse Administrative Agent. All reimbursement amounts payable
by any Bank under this Section  3.1(b)  shall  include  interest  thereon at the
                       ---------------
Federal  Funds  Rate,   from  the  date  of  the  payment  of  such  amounts  by
Administrative Agent to the date of reimbursement by such Bank. No Bank shall be
liable for the  performance or  nonperformance  of the  obligations of any other
Bank under this  paragraph.  The  reimbursement  obligations of Banks under this
paragraph  shall  continue  after  the   Termination   Date  and  shall  survive
termination of this Agreement and the other Loan Papers.

     Borrower shall indemnify and hold  Administrative  Agent and each Bank, and
their respective  officers,  directors,  representatives  and employees harmless
from loss for any claim,  demand or liability which may be asserted  against any
or such  indemnified  party in  connection  with actions  taken under Letters of
Credit  or  in  connection   therewith  (including  losses  resulting  from  the
negligence of any or such  indemnified  party),  and shall pay each  indemnified
party for reasonable  fees of attorneys and legal costs paid or incurred by each
indemnified  party in connection  with any matter  related to Letters of Credit,
except for  losses  and  liabilities  incurred  as a direct  result of the gross
negligence or willful misconduct of such indemnified party, IT BEING THE EXPRESS
INTENTION OF THE PARTIES THAT EACH  INDEMNIFIED  PARTY SHALL BE INDEMNIFIED  FOR
THE  CONSEQUENCES  OF ITS OWN  ORDINARY  NEGLIGENCE.  If Borrower for any reason
fails to  indemnify or pay such  indemnified  party as set forth herein in full,
Banks shall indemnify and pay such indemnified party upon

demand, in accordance with each Bank's Commitment Percentage of such amounts due
and unpaid from Borrower; provided, however, that, no such payment made by Banks
                          --------  -------  ----
shall discharge Borrower's obligation to indemnify or pay such indemnified party
in accordance  with the terms hereof.  The  provisions of this  paragraph  shall
survive the termination of this Agreement.

     Administrative Agent does not make any representation or warranty, and does
not  assume  any  responsibility   with  respect  to  the  validity,   legality,
sufficiency or enforceability of any letter of credit  application  executed and
delivered  in  connection  with any  Letter of Credit  issued  hereunder  or any
document relative thereto or to the  collectibility  thereunder.  Administrative
Agent does not assume any responsibility for the financial condition of Borrower
or for the performance of any obligation of Borrower.  Administrative  Agent may
use its discretion  with respect to exercising or refraining from exercising any
rights, or taking or refraining from taking any action which may be vested in it
or which it may be  entitled  to take or assert  with  respect  to any Letter of
Credit or any  letter of credit  application.  FURTHERMORE,  EXCEPT AS SET FORTH
HEREIN,  ADMINISTRATIVE  AGENT  SHALL BE UNDER NO  LIABILITY  TO ANY BANK,  WITH
RESPECT TO  ANYTHING  ADMINISTRATIVE  AGENT MAY

                                     10-24

<PAGE>

DO OR REFRAIN FROM DOING IN THE EXERCISE OF ITS JUDGMENT, THE SOLE LIABILITY AND
RESPONSIBILITY OF  ADMINISTRATIVE  AGENT BEING TO HANDLE EACH BANK'S SHARE ON AS
FAVORABLE A BASIS AS ADMINISTRATIVE AGENT HANDLES ITS OWN SHARE.  ADMINISTRATIVE
AGENT SHALL NOT HAVE ANY DUTIES OR  RESPONSIBILITIES  EXCEPT THOSE EXPRESSLY SET
FORTH  HEREIN  AND  THOSE  DUTIES  AND  LIABILITIES  SHALL  BE  SUBJECT  TO  THE
LIMITATIONS  AND   QUALIFICATIONS   SET  FORTH  HEREIN.   FURTHERMORE,   NEITHER
ADMINISTRATIVE AGENT, NOR ANY OF ITS DIRECTORS,  OFFICERS, OR EMPLOYEES SHALL BE
LIABLE FOR ANY ACTION  TAKEN OR OMITTED  (WHETHER  OR NOT SUCH  ACTION  TAKEN OR
OMITTED IS EXPRESSLY SET FORTH HEREIN) UNDER OR IN CONNECTION  HEREWITH OR UNDER
ANY OTHER  INSTRUMENT  OR  DOCUMENT  IN  CONNECTION  HEREWITH,  EXCEPT FOR GROSS
NEGLIGENCE  OR  WILLFUL  MISCONDUCT.  Administrative  Agent  shall not incur any
liability to any Bank,  Borrower,  or any Affiliate of any Bank or Borrower,  in
acting upon any notice, document, order, consent, certificate,  warrant or other
instrument  reasonably  believed  by  Administrative  Agent  to  be  genuine  or
authentic and to be signed by the proper party.

     (c) No Bank will be obligated to lend to Borrower hereunder or incur Letter
of Credit  Exposure,  and Borrower shall not be entitled to borrow  hereunder or
obtain  Letters  of  Credit  hereunder,  in an  amount  which  would  cause  the
Outstanding Credit to exceed the Borrowing Base then in effect. No Bank shall be
obligated to fund  Borrowings  hereunder  and Borrower  shall not be entitled to
Borrowings  hereunder  during the  existence  of a  Borrowing  Base  Deficiency.
Nothing in this Section 3.1(c) shall be deemed to limit any Bank's obligation to
                --------------
reimburse  Administrative  Agent with respect to its participation in Letters of
Credit as a result of the drawing under any Letter of Credit pursuant to Section
                                                                         -------
3.1(b).
------

     Section 3.2.     METHOD OF BORROWING.
                      -------------------

     (a) In order to request any  Borrowing  under Section 3.1,  Borrower  shall
                                                   -----------
hand deliver, telex or telecopy to Administrative Agent a duly completed Request
for Borrowing  (herein so called) prior to 12:00 noon (Dallas,  Texas time), (i)
at least one (1) Domestic Business Day before the Borrowing Date specified for a
proposed Base Rate  Borrowing,  and (ii) at least three (3) Eurodollar  Business
Days before the Borrowing  Date of a proposed  Eurodollar  Borrowing.  Each such
Request for Borrowing shall be  substantially  in the form of Exhibit F attached
                                                              ---------
hereto, and shall specify:

               (i) the  Borrowing  Date  of such  Borrowing,  which  shall  be a
               Domestic  Business Day in the case of a Base Rate  Borrowing or a
               Eurodollar Business Day in the case of a Eurodollar Borrowing;

               (ii) the aggregate amount of such Borrowing;

               (iii) whether such  Borrowing is to be a Base Rate Borrowing or a
               Eurodollar  Borrowing;  and


                                     10-25

<PAGE>

               (iv) in the case of a Eurodollar  Borrowing,  the duration of the
               Interest Period applicable thereto,  subject to the provisions of
               the definition of Interest Period.

     (b) Upon  receipt of a Request for  Borrowing,  Administrative  Agent shall
promptly  notify  each  Bank  of the  contents  thereof  and the  amount  of the
Borrowing  to be loaned by such Bank  pursuant  thereto,  and such  Request  for
Borrowing shall not thereafter be revocable by Borrower.

     (c) Not later  than  12:00 noon  (Dallas,  Texas  time) on the date of each
Borrowing,  each Bank shall make  available  its  Commitment  Percentage of such
Borrowing,  in Federal or other funds immediately  available in Dallas, Texas to
Administrative   Agent  at  its  address  set  forth  on  Schedule  2.1  hereto.
                                                          -------------
Notwithstanding  the foregoing,  if Borrower delivers to Administrative  Agent a
Request for  Borrowing  prior to 10:00 a.m.  (Dallas,  Texas time) on a Domestic
Business Day  requesting a Base Rate  Borrowing on such day, each Bank shall use
its best  efforts  to make  available  to  Administrative  Agent its  Commitment
Percentage of such Borrowing by 1:00 p.m. (Dallas,  Texas time) on the same day.
Unless  Administrative  Agent determines that any applicable condition specified
in Section 7.2 has not been satisfied,  Administrative Agent will make the funds
   -----------
so received from Banks available to Borrower at Administrative Agent's aforesaid
address.

     Section 3.3.     METHOD OF REQUESTING LETTERS OF CREDIT.
                      --------------------------------------

     (a) In order to request any Letter of Credit hereunder, Borrower shall hand
deliver,  telex or telecopy to Administrative Agent a duly completed Request for
Letter of Credit (herein so called) prior to 12:00 noon (Dallas,  Texas time) at
least three (3) Domestic Business Days before the date specified for issuance of
such Letter of Credit.  Each Request for Letter of Credit shall be substantially
in  the  form  of  Exhibit  G  attached  hereto,  shall  be  accompanied  by the
                   ----------
Administrative  Agent's duly completed and executed letter of credit application
and agreement and shall specify:

               (i) the requested date for issuance of such Letter of Credit;

               (ii) the terms of such requested Letter of Credit,  including the
               name and  address  of the  beneficiary,  the stated  amount,  the
               expiration date and the conditions  under which drafts under such
               Letter of Credit are to be available; and

               (iii) the purpose of such Letter of Credit.

     (b) Upon  receipt of a Request for Letter of Credit,  Administrative  Agent
shall promptly notify each Bank of the contents thereof, including the amount of
the requested Letter of Credit,  and such Request for Letter of Credit shall not
thereafter be revocable by Borrower.

     (c) No later than 12:00 noon  (Dallas,  Texas time) on the date each Letter
of  Credit  is  requested,  unless  Administrative  Agent  determines  that  any
applicable  condition  precedent  set forth in  Section  7.2 hereof has not been
satisfied,  Administrative  Agent will issue and  deliver  such Letter of Credit
pursuant to the instructions of Borrower.


                                     10-26

<PAGE>

     Section 3.4. NOTES. Each Bank's Commitment Percentage of the Revolving Loan
                  -----
shall be  evidenced  by a single  Note  payable  to the order of such Bank in an
amount equal to such Bank's Commitment.


     Section 3.5.     INTEREST RATES; PAYMENTS.
                      ------------------------

     (a) The principal  amount of the Base Rate Loan outstanding from day to day
shall bear  interest at a rate per annum equal to the sum of (i) the  Applicable
Margin plus (ii) the  applicable  Base Rate in effect from day to day;  provided
                                                                        --------
that in no event shall the rate charged  hereunder or under the Notes exceed the
----
Maximum  Lawful  Rate.  Interest  on the Base Rate Loan  shall be  payable as it
accrues on each Quarterly Date, and on the Termination Date.

     (b) The principal  amount of each Eurodollar Loan  outstanding  from day to
day shall bear interest for the Interest Period applicable thereto at a rate per
annum equal to the sum of (i) the  Applicable  Margin  plus (ii) the  applicable
Adjusted  Eurodollar  Rate;  provided  that in no event  shall the rate  charged
                             --------  ----
hereunder  or under the Notes exceed the Maximum  Lawful  Rate.  Interest on any
portion of the principal of each  Eurodollar  Loan subject to an Interest Period
of one (1),  two (2) or three (3) months shall be payable on the last day of the
Interest Period applicable thereto.  Interest on any portion of the principal of
each  Eurodollar  Loan  subject to an Interest  Period of six (6),  nine (9), or
twelve  (12)  months  shall be  payable on the last day of the  Interest  Period
applicable thereto and on each Quarterly Date.

          (c) So long as no  Default or Event of  Default  shall be  continuing,
subject to the provisions of this Section 3.5, Borrower shall have the option of
                                  -----------
having all or any portion of the principal  outstanding under the Revolving Loan
be a Base  Rate  Loan or one (1) or more  Eurodollar  Loans,  which  shall  bear
interest at rates  determined  by  reference  to the Base Rate and the  Adjusted
Eurodollar Rate, respectively; provided, that each Eurodollar Loan shall be in a
                               --------  ----
minimum  amount of  $2,000,000  and shall be in an amount  which is an  integral
multiple of $500,000.  Prior to the  termination  of each  Interest  Period with
respect to each Eurodollar  Loan,  Borrower shall give written notice (a "NOTICE
                                                                          ------
OF  CONTINUATION  OR  CONVERSION")  in the form of Exhibit H attached  hereto to
--------------------------------                   ---------
Administrative  Agent  of the Type of Loan  which  shall  be  applicable  to the
principal of such Eurodollar  Loan upon the expiration of such Interest  Period.
Such Notice of Continuation or Conversion shall be given to Administrative Agent
at  least  one (1)  Domestic  Business  Day,  in the  case of a Base  Rate  Loan
selection and three (3)  Eurodollar  Business  Days, in the case of a Eurodollar
Loan  selection,  prior to the termination of the Interest Period then expiring.
If Borrower  shall specify a Eurodollar  Loan,  such Notice of  Continuation  or
Conversion  shall also  specify  the length of the  succeeding  Interest  Period
(subject to the provisions of the definition of such term) selected by Borrower.
Each Notice of  Continuation  or Conversion  shall be irrevocable  and effective
upon  notification  thereof to  Administrative  Agent. If the required Notice of
Continuation or Conversion shall not have been timely received by Administrative
Agent,  Borrower  shall be  deemed to have  elected  that the  principal  of the
Eurodollar Loan subject to the Interest Period then expiring be Converted to the
Base Rate Loan upon the expiration of such Interest  Period and Borrower will be
deemed to have given  Administrative  Agent notice of such election.  Subject to
the  limitations  set forth in this  Section  3.5(c) on the amount and number of
                                     ---------------
Eurodollar  Loans,  Borrower  shall have the right to Convert all or any part of
the Base Rate Loan to a Eurodollar Loan by giving  Administrative Agent a Notice
of  Continuation  or Conversion  of such election at least three (3)  Eurodollar
Business

                                     10-27

<PAGE>

Days  prior to the date on which  Borrower  elects  to make such  Conversion  (a
"CONVERSION  DATE").  The  Conversion  Date  selected  by  Borrower  shall  be a
 ----------------
Eurodollar  Business  Day.  Notwithstanding  anything in this Section 3.5 to the
                                                              -----------
contrary,  no portion of the principal of the Base Rate Loan may be Converted to
a  Eurodollar  Loan and no  Eurodollar  Loan may be  Continued  as such when any
Default  or Event of  Default  has  occurred  and is  continuing,  but each such
Eurodollar  Loan shall be  automatically  Converted to the Base Rate Loan on the
last day of each applicable Interest Period.  Borrower shall not be permitted to
have more than seven (7) Eurodollar Loans in effect at any time.

     (d) Notwithstanding anything to the contrary set forth in Section 3.5(a) or
                                                               --------------
Section  3.5(b) above,  after the  occurrence  of an Event of Default,  interest
---------------
shall accrue on the outstanding  principal balance of the Revolving Loan, and to
the extent permitted by Law, on the accrued but unpaid interest on the Revolving
Loan and all other Obligations from the period from and including the occurrence
of such Event of Default to but  excluding  the date the same is  remedied  at a
rate per annum equal to the lesser of (a) the Default Rate,  and (b) the Maximum
Lawful Rate.

     (e)  Administrative  Agent shall determine each interest rate applicable to
the Revolving  Loan in accordance  with the terms hereof.  Administrative  Agent
shall  promptly  notify  Borrower and Banks by telex,  telecopy or cable of each
rate  of  interest  so  determined,  and  its  determination  thereof  shall  be
conclusive in the absence of manifest error.

     (f)  Notwithstanding  the  foregoing,  if at any time the rate of  interest
calculated with reference to the Base Rate or the Eurodollar Rate hereunder (the
"CONTRACT  RATE")  is  limited  to  the  Maximum  Lawful  Rate,  any  subsequent
 --------------
reductions  in the  contract  rate shall not reduce the rate of  interest on the
Revolving  Loan below the Maximum Lawful Rate until the total amount of interest
accrued  equals the amount of interest  which would have accrued if the contract
rate had at all times been in effect.  In the event that at maturity  (stated or
by acceleration),  or at final payment of any Note, the total amount of interest
paid or  accrued on such Note is less than the amount of  interest  which  would
have accrued if the  contract  rate had at all times been in effect with respect
thereto,  then at such time, to the extent permitted by law,  Borrower shall pay
to the holder of such Note an amount  equal to the  difference  between  (i) the
lesser of the amount of interest  which would have accrued if the contract  rate
had at all times  been in effect  and the amount of  interest  which  would have
accrued if the Maximum Lawful Rate had at all times been in effect, and (ii) the
amount of interest actually paid on such Note.

     (g) Interest  payable  hereunder on each  Eurodollar Loan shall be computed
based on the number of actual days  elapsed  assuming  that each  calendar  year
consisted of 360 days. Interest payable hereunder on the Base Rate Loan shall be
computed based on the actual number of days elapsed  assuming that each calendar
year consisted of 365 days.

     Section 3.6. MANDATORY  PREPAYMENTS.  Simultaneously  with any reduction of
                  ----------------------
the  Borrowing  Base  pursuant  to Section  5.5  hereof,  Borrower  shall make a
                                   ------------
mandatory prepayment on the Revolving Loan in an amount sufficient to reduce the
Outstanding Credit to the amount of the Borrowing Base as thereby reduced.  Upon
the occurrence of any other Borrowing Base  Deficiency,  Borrower shall make the
mandatory prepayments of the Revolving Loan required by Section 5.4 hereof.
                                                        -----------

                                     10-28

<PAGE>

     Section 3.7.  VOLUNTARY  PREPAYMENTS. Borrower may, subject to Section 3.3
                   ----------------------                           -----------
and the other  provisions of this  Agreement,  upon three (3) Domestic  Business
Days  advance  notice to  Administrative  Agent,  prepay  the  principal  of the
Revolving Loan in whole or in part. Any partial prepayment shall be in a minimum
amount of $500,000 and shall be in an integral multiple of $100,000.

     Section 3.8. VOLUNTARY REDUCTION OF COMMITMENTS. Borrower may, by notice to
                  ----------------------------------
Administrative Agent five (5) Domestic Business Days prior to the effective date
of any such  reduction,  reduce the Total  Commitment  (and  thereby  reduce the
Commitment of each Bank ratably) in amounts not less than  $5,000,000  and in an
amount which is an integral multiple of $1,000,000. On the effective date of any
such  reduction,  Borrower  shall,  to the extent  required  as a result of such
reduction,  make  a  principal  payment  on  the  Revolving  Loan  in an  amount
sufficient to cause the principal balance of the Revolving Loan then outstanding
to  be  equal  to  or  less  than  the  Total  Commitment  as  thereby  reduced.
Notwithstanding  the  foregoing,  Borrower shall not be permitted to voluntarily
reduce  the Total  Commitment  to an amount  less than the  aggregate  Letter of
Credit Exposure of all Banks.

     Section 3.9. TERMINATION OF COMMITMENTS;  FINAL MATURITY OF REVOLVING LOAN.
                  -------------------------------------------------------------
The Total Commitment (and the Commitment of each Bank) shall terminate,  and the
entire outstanding principal balance of the Revolving Loan, all interest accrued
thereon,  all  accrued  but  unpaid  fees  hereunder  and all other  outstanding
Obligations shall be due and payable in full on the Termination Date.

     Section 3.10.  APPLICATION OF PAYMENTS.  Each repayment pursuant to Section
                    -----------------------                              -------
3.6, Section 3.7, Section 3.8, Section 3.9, Section 5.4 and Section 5.5 shall be
---  -----------  -----------  -----------  -----------     -----------
made together with accrued interest on the amount repaid to the date of payment,
and shall be applied in accordance with Section 4.2 and the other  provisions of
                                        -----------
this Agreement.

     Section 3.11.  COMMITMENT FEE. On the  Termination  Date, on each Quarterly
                    --------------
Date  prior to the  Termination  Date,  and,  in the event the  Commitments  are
terminated in their entirety prior to the Termination  Date, on the date of such
termination, Borrower shall pay to Administrative Agent, for the ratable benefit
of each Bank based on each Bank's Commitment Percentage,  a commitment fee equal
to the  Commitment  Fee  Percentage  in effect from day to day (applied on a per
annum  basis and  computed  on the basis of actual  days  elapsed and as if each
calendar year consisted of 365 days) of the average daily  Availability  for the
Fiscal Quarter (or portion thereof) ending on the date such payment is due.

     Section 3.12.  AGENCY AND OTHER FEES.  Borrower shall pay to Administrative
                    ---------------------
Agent and its  Affiliates  such other  fees and  amounts  as  Borrower  shall be
required to pay to  Administrative  Agent and its  Affiliates  from time to time
pursuant to any separate agreement between Borrower and Administrative  Agent or
such Affiliates. Such fees and other amounts shall be retained by Administrative
Agent and its  Affiliates,  and no Bank (other than Bank of America)  shall have
any  interest  therein.  Administrative  Agent  may  disburse  any fees  paid to
Administrative  Agent and its  Affiliates  pursuant to this  Section 3.12 in any
                                                             ------------
manner Administrative Agent desires in its sole discretion.

                                     10-29

<PAGE>

                                   ARTICLE IV

                               GENERAL PROVISIONS
                               ------------------

     Section  4.1.  Delivery  and  Endorsement  of Notes.  On the Closing  Date,
                    ------------------------------------
Administrative  Agent shall  deliver to each Bank the Note payable to such Bank.
Each Bank may endorse (and prior to any  transfer of its Note shall  endorse) on
the  schedules  attached  and forming a part  thereof  appropriate  notations to
evidence the date and amount of its Commitment Percentage of each Borrowing, the
Interest Period applicable  thereto,  and the date and amount of each payment of
principal  made by Borrower with respect  thereto;  provided that the failure by
any Bank to so endorse its Note shall not affect the  liability  of Borrower for
the repayment of all amounts  outstanding under such Note together with interest
thereon.  Each Bank is hereby irrevocably  authorized by Borrower to endorse its
Note and to  attach to and make a part of any such  Note a  continuation  of any
such schedule as required.

     Section 4.2.   GENERAL PROVISIONS AS TO PAYMENTS.
                    ---------------------------------

     (a) Borrower  shall make each payment of principal of, and interest on, the
Revolving  Loan,  and all fees payable  hereunder  shall be paid, not later than
12:00 noon (Dallas,  Texas time) on the date when due, in Federal or other funds
immediately  available in Dallas,  Texas, to Administrative Agent at its address
set forth on  Schedule  2.1  hereto,  without  defense,  set-off,  deduction  or
              -------------
counterclaim.  Administrative  Agent  will  promptly  (and  if such  payment  is
received  by  Administrative  Agent by 10:00  a.m.  (Dallas,  Texas  time),  and
otherwise if reasonably possible,  on the same Domestic Business Day) distribute
to each  Bank  its  Commitment  Percentage  of each  such  payment  received  by
Administrative Agent for the account of Banks. Whenever any payment of principal
of, or interest on, the Base Rate Loan or of fees shall be due on a day which is
not a Domestic  Business Day, the date for payment  thereof shall be extended to
the next succeeding Domestic Business Day. Whenever any payment of principal of,
or interest on, any portion of any  Eurodollar  Loan shall be due on a day which
is not a Eurodollar Business Day, the date for payment thereof shall be extended
to the next succeeding Eurodollar Business Day (subject to the provisions of the
definition  of Interest  Period).  If the date for any payment of  principal  is
extended by operation of Law or otherwise, interest thereon shall be payable for
such extended time.  Borrower hereby authorizes  Administrative  Agent to charge
from time to time against  Borrower's  accounts  with  Administrative  Agent any
amount then due.

     (b) Prior to the occurrence of an Event of Default,  all principal payments
received by Banks with respect to the  Revolving  Loan shall be applied first to
Eurodollar  Loans  outstanding  with Interest Periods ending on the date of such
payment,  then to the Base Rate Loan, and then to Eurodollar Loans next maturing
until such principal payment is fully applied.

     (c) After the occurrence of an Event of Default,  all amounts  collected or
received  by  Administrative  Agent or any Bank  shall be  applied  first to the
payment of all proper costs incurred by Administrative  Agent in connection with
the collection  thereof  (including  reasonable  expenses and  disbursements  of
Administrative  Agent),  second to the payment of all proper  costs  incurred by
Banks in connection with the collection thereof (including  reasonable  expenses
and disbursements of Banks),  third to the reimbursement of any advances made by
Banks to effect

                                     10-30

<PAGE>


performance  of any  unperformed  covenants of any Credit Party under any of the
Loan  Papers,  fourth to the  payment of any unpaid  fees  required  pursuant to
Section  3.11,  fifth to the  payment of any unpaid  fees  required  pursuant to
-------------
Section  3.1(b)  and  Section  3.10,  sixth,  to  payment  to  each  Bank of its
---------------       -------------
Commitment  Percentage of the  outstanding  principal of the Revolving  Loan and
accrued but unpaid  interest  thereon,  and seventh to  establish  the  deposits
required in Section 3.1(b). All payments received by a Bank after the occurrence
            --------------
of an Event of Default for  application  to the principal of the Revolving  Loan
shall be applied by such Bank in the manner provided in Section 4.2(b).
                                                        --------------

                                    ARTICLE V

                                 BORROWING BASE
                                 --------------

     Section  5.1.  RESERVE  REPORT;  PROPOSED  BORROWING  BASE  AND  CONFORMING
                    ------------------------------------------------------------
BORROWING BASE . The aggregate amount of credit available to Borrower under this
--------------
Agreement shall be limited by a Borrowing Base (herein so called) which shall be
determined  by Banks at the  times  and in  accordance  with the  standards  and
procedures set forth in this Article V. As soon as available and in any event by
                             ---------
February 28 and August 31 of each year  commencing  February 28, 2001,  Borrower
shall deliver to Administrative Agent and each Bank a Reserve Report prepared as
of  the   immediately   preceding   December   31  and  June  30   respectively.
Simultaneously  with the delivery to Administrative  Agent and each Bank of each
Reserve Report,  Borrower shall notify Administrative Agent and each Bank of the
amount of the Borrowing Base which  Borrower  requests  become  effective on the
next  Redetermination Date (or such date promptly following such Redetermination
Date as  Required  Banks  shall  elect).  Banks may,  in their sole  discretion,
establish a Borrowing  Base which is higher than the  Borrowing  Base that would
otherwise  be in effect if Banks  determined  the  Borrowing  Base based on each
Bank's  application  of the  credit  standards  and other  criteria  customarily
applied by such Bank in the  determination  of credit  limitations for companies
similar  to  Borrower  ("CONFORMING  CREDIT  CRITERIA").  At the  time  of  each
                         ----------------------------
Redetermination,  Banks shall also determine what the Borrowing Base would be if
they applied  Conforming  Credit Criteria (the "CONFORMING  BORROWING BASE"). If
                                                --------------------------
Banks do not  determine a  Conforming  Borrowing  Base,  the  Borrowing  Base as
redetermined  shall also be the  Conforming  Borrowing Base for purposes of this
Agreement.

     Section  5.2.  SCHEDULED  REDETERMINATIONS  OF THE  BORROWING  BASE AND THE
                    ------------------------------------------------------------
CONFORMING  BORROWING  BASE;  PROCEDURES  AND  STANDARDS.  Based  in part on the
--------------------------------------------------------
Reserve  Reports made  available to Banks  pursuant to Section 5.1,  Banks shall
                                                       -----------
redetermine the Borrowing Base and the Conforming  Borrowing Base on or prior to
the next  Redetermination  Date (or such date promptly  thereafter as reasonably
possible based on the engineering and other information available to Banks). Any
Borrowing Base or Conforming  Borrowing Base which becomes effective as a result
of any Redetermination of the Borrowing Base or Conforming  Borrowing Base shall
be subject to the following restrictions:  (a) such Borrowing Base or Conforming
Borrowing  Base  shall not exceed  the  Borrowing  Base  requested  by  Borrower
pursuant to Section 5.1 or Section 5.3 (as applicable),  (b) such Borrowing Base
            -----------    -----------
or  Conforming  Borrowing  Base shall not exceed  the Total  Commitment  then in
effect,  (c) to the extent such  Borrowing  Base or  Conforming  Borrowing  Base
represents an increase from the Borrowing Base or the Conforming

                                     10-31

<PAGE>

Borrowing  Base (as  applicable) in effect prior to such  Redetermination,  such
Borrowing Base or Conforming  Borrowing Base shall be approved by all Banks, and
(d) to the extent such Borrowing Base or Conforming  Borrowing Base represents a
decrease in the Borrowing Base or the Conforming  Borrowing Base (as applicable)
in  effect  prior to such  Redetermination,  or a  reaffirmation  of such  prior
Borrowing Base or Conforming  Borrowing  Base, such Borrowing Base or Conforming
Borrowing Base shall be approved by Required Banks. Each  Redetermination  shall
be made by Banks in their sole  discretion.  Without  limiting such  discretion,
Borrower  acknowledges  and  agrees  that  Banks (i) may make  such  assumptions
regarding  appropriate  existing and projected  pricing for Hydrocarbons as they
deem  appropriate  in their  sole  discretion,  (ii) may make  such  assumptions
regarding  projected  rates and quantities of future  production of Hydrocarbons
from the Mineral  Interests owned by Borrower as they deem  appropriate in their
sole  discretion,  (iii) may consider the  projected  cash  requirements  of the
Credit Parties,  (iv) except with respect to the Initial  Borrowing Base and the
Initial  Conforming  Borrowing  Base set forth in Section  5.5  hereof,  are not
                                                  ------------
required to consider  any asset other than  Proved  Mineral  Interests  owned by
Borrower  which are subject to first and prior Liens in favor of  Administrative
Agent for the  ratable  benefit of Banks to the extent  required  by Section 6.1
                                                                     -----------
hereof, and (v) may make such other  assumptions,  considerations and exclusions
as Banks  deem  appropriate  in the  exercise  of their sole  discretion.  It is
further  acknowledged  and agreed that each Bank may consider  such other credit
factors as it deems appropriate in the exercise of its sole discretion and shall
have no  obligation  in  connection  with any  Redetermination  to  approve  any
increase  from the Borrowing  Base or the  Conforming  Borrowing  Base in effect
prior to such  Redetermination.  The  Conforming  Borrowing  Base  shall also be
determined by Banks in their sole  discretion,  and in determining the amount of
the Conforming  Borrowing  Base, each Bank may make the assumptions and consider
the factors and criteria set forth in subclauses (a) through (d) and (i) through
(v) above;  provided,  that each Bank shall apply  Conforming  Credit  Criteria.
            --------   ----
Promptly following any  Redetermination of the Borrowing Base and the Conforming
Borrowing Base,  Administrative Agent shall notify Borrower of the amount of the
Borrowing  Base  and  the  Conforming  Borrowing  Base  as  redetermined,  which
Borrowing Base and  Conforming  Borrowing Base shall be effective as of the date
specified  in such  notice,  and shall remain in effect for all purposes of this
Agreement until the next Redetermination.

     Section 5.3.   SPECIAL REDETERMINATION.
                    -----------------------
     (a) In addition to Scheduled Redeterminations,  Borrower and Required Banks
shall each be permitted to request a Special  Redetermination  of the  Borrowing
Base and the Conforming  Borrowing Base once in each Fiscal Year. Any request by
Required   Banks   pursuant  to  this  Section  5.3(a)  shall  be  submitted  to
                                       ---------------
Administrative  Agent and  Borrower.  Any request by  Borrower  pursuant to this
Section 5.3(a) shall be submitted to  Administrative  Agent and each Bank and at
--------------
the time of such request Borrower shall (i) deliver to Administrative  Agent and
each Bank a Reserve Report, and (ii) also notify  Administrative  Agent and each
Bank of the Borrowing Base requested by Borrower in connection with such Special
Redetermination.

     (b) Any Special  Redetermination  shall be made by Banks in accordance with
the  procedures  and  standards  set forth in Section 5.2;  provided,  that,  no
                                              -----------   --------   ----
Reserve  Report will be required to be  delivered  to  Administrative  Agent and
Banks in connection with any Special Redetermination requested by Required Banks
pursuant to Section 5.3(a) above.
            --------------

                                     10-32

<PAGE>

     Section 5.4. BORROWING BASE DEFICIENCY.  Except as provided in Section 5.5,
                  -------------------------                         -----------
to the extent a Borrowing  Base  Deficiency  exists after  giving  effect to any
Redetermination,  Borrower  shall be obligated to eliminate  such Borrowing Base
Deficiency over a period not to exceed six (6) months from the effective date of
such Redetermination by making six (6) mandatory,  equal,  consecutive,  monthly
payments  of  principal  on the  Revolving  Loan,  each of which shall be in the
amount of one sixth (1/6th) of such Borrowing Base  Deficiency,  or in the event
that the remaining  principal  outstanding under the Revolving Loan is less than
the Borrowing  Base  Deficiency,  then in the amount of one sixth (1/6th) of the
remaining principal  outstanding under the Revolving Loan. The first of such six
(6) payments  shall be due on the  thirtieth  (30th) day following the effective
date of each such  Redetermination  and each subsequent  payment shall be due on
the same day of each month  thereafter (or if there is no  corresponding  day of
any  subsequent  month,  then on the last day of such month)  (each such date is
referred  to  herein  as a  "BORROWING  BASE  DEFICIENCY  PAYMENT  DATE").  If a
                             ------------------------------------------
Borrowing Base Deficiency  cannot be eliminated  pursuant to this Section 5.4 by
                                                                  -----------
prepayment of the Revolving Loan in full (as a result of  outstanding  Letter of
Credit Exposure), on each borrowing base deficiency payment date, Borrower shall
also deposit cash with Administrative  Agent, to be held by Administrative Agent
to secure  outstanding  Letter of Credit Exposure in the manner  contemplated by
Section 3.1(b),  an amount at least equal to one sixth (1/6th) of the balance of
--------------
such Borrowing Base Deficiency  (i.e.,  one-sixth of the difference  between the
Borrowing Base  Deficiency  and the remaining  outstanding  principal  under the
Revolving Loan on the effective date of such Redetermination).

     Section 5.5. INITIAL BORROWING BASE AND INITIAL CONFORMING  BORROWING BASE.
                  -------------------------------------------------------------
Notwithstanding  anything to the contrary  contained herein,  the Borrowing Base
and the Conforming  Borrowing Base in effect during the period commencing on the
Closing Date and ending on the effective date of the first Redetermination after
the Closing Date shall be the Initial Borrowing Base and the Initial  Conforming
Borrowing  Base,  respectively.  The Borrowing Base in effect under this Section
                                                                         -------
5.5 shall reduce (but not below the Conforming  Borrowing Base) immediately upon
---
the  consummation  of any  Securities  Offering by any Credit Party in an amount
equal  to the  Net  Cash  Proceeds  resulting  from  such  Securities  Offering.
Simultaneously  with  any  such  reduction,  Borrower  shall  make  a  mandatory
prepayment  of the  Revolving  Loan in an amount  sufficient  to  eliminate  any
Borrowing Base Deficiency resulting from such reduction in the Borrowing Base.


                                   ARTICLE VI

                            COLLATERAL AND GUARANTEES
                            -------------------------

     Section 6.1.   SECURITY.
                    --------

     (a) The Obligations shall be secured by first and prior Liens (subject only
to Permitted  Encumbrances)  covering and  encumbering  (i) one hundred  percent
(100%) of all Borrowing  Base  Properties,  and (ii) prior to any  Distributions
being  permitted to be made to any Subsidiary of Borrower  pursuant to the terms
of Section 10.2(b) and/or the definition of "Permitted  Investments," all of the
   ---------------
issued and outstanding  Equity owned by Borrower and each Subsidiary of Borrower
of each such  Subsidiary  of Borrower  (other than DES,  Marine and TRI). On the
Closing Date,  Borrower  shall deliver to  Administrative  Agent for the ratable
benefit of each Bank, the Mortgages and Amendments to Existing Mortgages in form
and substance

                                     10-33

<PAGE>

acceptable to Administrative Agent and duly executed by Borrower,  together with
such other assignments,  conveyances, amendments, agreements and other writings,
including,  without limitation,  UCC-1 and UCC-3 financing statements (each duly
authorized  and  executed)  as  Administrative  Agent  shall deem  necessary  or
appropriate  to grant,  evidence  and perfect  first and prior Liens in not less
than  ninety-five  percent  (95%) of all  Borrowing  Base  Properties  and other
interests of Borrower required by this Section 6.1(a). Additionally, on or prior
                                       --------------
to January 13, 2001,  Borrower  shall  deliver to  Administrative  Agent for the
ratable  benefit  of each  Bank,  additional  Mortgages  in form  and  substance
acceptable to Administrative Agent and duly executed by Borrower,  together with
such other assignments,  conveyances, amendments, agreements and other writings,
including, without limitation, UCC- 1 financing statements (each duly authorized
and executed) as  Administrative  Agent shall deem  necessary or  appropriate to
grant,  evidence  and  perfect  first  and  prior  Liens in all  Borrowing  Base
Properties and other interests of Borrower required by this Section 6.1(a).
                                                            --------------

     (b) On or before each  Redetermination  Date after the Closing  Date and at
such other  times as  Administrative  Agent or  Required  Banks  shall  request,
Borrower and its Subsidiaries shall execute and deliver to Administrative Agent,
for the ratable benefit of each Bank, Mortgages in form and substance acceptable
to  Administrative  Agent and duly executed by Borrower and any such  Subsidiary
(as applicable) together with such other assignments,  conveyances,  amendments,
agreements and other writings,  including,  without limitation,  UCC-1 financing
statements  (each duly  authorized and executed) as  Administrative  Agent shall
deem necessary or appropriate to grant,  evidence and perfect the Liens required
by Section 6.1(a)  preceding with respect to Borrowing Base Properties  acquired
   --------------
by Borrower and its  Subsidiaries  subsequent to the last date on which Borrower
or any such Subsidiary was required to execute and deliver Mortgages pursuant to
this  Section  6.1(b),  or which,  for any other  reason are not the  subject of
      ---------------
valid,  enforceable,  perfected  first priority Liens (subject only to Permitted
Encumbrances) in favor of Administrative Agent for the ratable benefit of Banks.

     (c) At any time Borrower or any of its  Subsidiaries is required to execute
and deliver  Mortgages to  Administrative  Agent pursuant to this Section 6.1 or
                                                                  -----------
Section 7.3 (other than  Mortgages to be delivered  on the Closing  Date,  which
-----------
shall  only  require  evidence  of  title  to  verify  Borrower's  or  any  such
Subsidiary's (as applicable)  title to the Initial Required Reserve Value of the
Proved Mineral  Interests which are subject to such Mortgages to be delivered on
the Closing  Date),  Borrower  shall also deliver to  Administrative  Agent such
opinions of counsel  (including,  if so requested,  title opinions,  and in each
case  addressed  to  Administrative  Agent)  and  other  evidence  of  title  as
Administrative   Agent  shall  deem  necessary  or  appropriate  to  verify  (i)
Borrower's  or such  Subsidiary's  title to the  Required  Reserve  Value of the
Proved  Mineral  Interests  which are  subject to such  Mortgages,  and (ii) the
validity,  perfection  and priority of the Liens  created by such  Mortgages and
such other  matters  regarding  such  Mortgages  as  Administrative  Agent shall
reasonably request.

     (d) To  the  extent  required  or  contemplated  by the  terms  of  Section
                                                                         -------
6.1(a)(ii), Section 10.2 and the definition of "Permitted Investments," Borrower
----------  ------------
or any  Indirect  Subsidiary  (as  applicable)  shall  execute  and  deliver  to
Administrative  Agent  a  Borrower  Pledge  Agreement  or  a  Subsidiary  Pledge
Agreement (as applicable)  together with (i) all certificates (or other evidence
acceptable to Administrative Agent) evidencing the issued and outstanding Equity
of any  such  Subsidiary  of every  class  owned by  Borrower  or such  Indirect
Subsidiary (as

                                     10-34


<PAGE>

applicable) which shall be duly endorsed or accompanied by stock powers executed
in  blank  (as  applicable),   and  (ii)  such  UCC-1  financing  statements  as
Administrative Agent shall deem necessary or appropriate to grant,  evidence and
perfect the Liens required by Section  6.1(a)(ii) and Section 10.2 in the issued
                              -------------------     ------------
and outstanding Equity of each such Subsidiary.

     Section 6.2.  GUARANTEES.  Prior to any Distributions being permitted to be
                   ----------
made to any  Subsidiary  of Borrower  pursuant to the terms of Section  10.2(b),
                                                               ----------------
payment and  performance of the  Obligations  shall be fully  guaranteed by each
such  Subsidiary  of  Borrower  (other than DES,  Marine and TRI)  pursuant to a
Facility  Guaranty,  and Borrower shall cause any such applicable  Subsidiary to
execute and deliver to Administrative Agent such Facility Guaranty.


                                   ARTICLE VII

                              CONDITIONS PRECEDENT
                              --------------------

     Section 7.1.  CONDITIONS TO AMENDMENT AND RESTATEMENT AND INITIAL BORROWING
                   -------------------------------------------------------------
AND PARTICIPATION IN LETTER OF CREDIT EXPOSURE. The amendment and restatement of
----------------------------------------------
the Existing Credit Agreement on the terms set forth herein,  and the obligation
of  each  Bank  to loan  its  Commitment  Percentage  of the  initial  Borrowing
hereunder and the obligation of Administrative  Agent to issue (or cause another
Bank to  issue)  any  Letter  of  Credit  issued  hereunder  is  subject  to the
satisfaction of each of the following conditions:

          (a) CLOSING DELIVERIES.  Administrative Agent shall have received each
              ------------------
of the following documents,  instruments and agreements,  each of which shall be
in form and substance and executed in such  counterparts  as shall be acceptable
to Administrative  Agent and each Bank and each of which shall, unless otherwise
indicated, be dated the Closing Date:

               (i) a Note payable to the order of each Bank,  each in the amount
               of such Bank's Commitment, duly executed by Borrower;

               (ii) the  Mortgages and  Amendments  to Existing  Mortgages to be
               executed on the Closing  Date  pursuant to Section  6.1(a),  duly
                                                          ---------------
               executed  and  delivered by  Borrower,  together  with such other
               assignments,   conveyances,   amendments,  agreements  and  other
               writings,   including,   without  limitation,   UCC-1  and  UCC-3
               financing  statements,  in form  and  substance  satisfactory  to
               Administrative  Agent,  creating  first  and  prior  Liens in all
               Borrowing Base Properties;

               (iii) such financing statements  (including,  without limitation,
               the financing  statements  referenced in subclause (ii) above) in
               form  and  substance   acceptable  to  Administrative  Agent  and
               executed  by each  Credit  Party as  Administrative  Agent  shall
               specify to fully evidence and perfect all Liens  contemplated  by
               the Loan  Papers,  all of which  shall be filed of record in such
               jurisdictions as  Administrative  Agent shall require in its sole
               discretion;


                                     10-35

<PAGE>

               (iv)  a  copy  of  the  certificate  of  incorporation,  and  all
               amendments thereto, of Borrower accompanied by a certificate that
               such copy is true,  correct and  complete,  and dated  within ten
               (10) days of the  Closing  Date (or within  such other  period as
               acceptable to  Administrative  Agent),  issued by the appropriate
               Governmental  Authority of the  jurisdiction of  incorporation of
               Borrower,  and  accompanied  by a certificate of the Secretary or
               comparable Authorized Officer of Borrower that such copy is true,
               correct and complete on the Closing Date;

               (v) a copy of the bylaws, and all amendments thereto, of Borrower
               accompanied  by a  certificate  of the  Secretary  or  comparable
               Authorized  Officer of Borrower  that such copy is true,  correct
               and complete as of Closing Date;

               (vi)  certain  certificates  and  other  documents  issued by the
               appropriate  Governmental  Authorities of such  jurisdictions  as
               Administrative  Agent has requested  relating to the existence of
               Borrower and to the effect that Borrower is in good standing with
               respect to the payment of franchise and similar Taxes and is duly
               qualified to transact business in such jurisdictions;

               (vii) a certificate of incumbency of all officers of Borrower who
               will be authorized to execute or attest to any Loan Paper,  dated
               the  Closing  Date,  executed  by  the  Secretary  or  comparable
               Authorized Officer of Borrower;

               (viii)  copies  of  resolutions   or  comparable   authorizations
               approving  the  Loan  Papers  and  authorizing  the  transactions
               contemplated  by this  Agreement and the other Loan Papers,  duly
               adopted by the Board of  Directors  of  Borrower  accompanied  by
               certificates  of the Secretary or comparable  officer of Borrower
               that such copies are true and correct copies of resolutions  duly
               adopted at a meeting of or (if permitted by  applicable  Law and,
               if  required  by such  Law,  by the  bylaws of  Borrower)  by the
               unanimous  written consent of the Board of Directors of Borrower,
               and that such resolutions  constitute all the resolutions adopted
               with  respect  to  such  transactions,  have  not  been  amended,
               modified,  or revoked in any  respect,  and are in full force and
               effect as of the Closing Date;

               (ix) an opinion of Jenkens & Gilchrist, P.C., special counsel for
               Borrower  dated the  Closing  Date,  favorably  opining as to the
               enforceability  of each of the Loan Papers and  otherwise in form
               and substance satisfactory to Administrative Agent and Banks;

               (x) an  opinion  of  Cliffe C.  Laborde  III,  special  Louisiana
               counsel  for   Administrative   Agent  dated  the  Closing  Date,
               favorably  opining as


                                     10-36

<PAGE>

               to the enforceability of the Mortgages and Amendments to Existing
               Mortgages  in  Louisiana  and  otherwise  in form  and  substance
               satisfactory to Administrative Agent and Banks;

               (xi) an opinion of Young, Williams,  Henderson & Fuselier,  P.A.,
               special  Mississippi  counsel for Administrative  Agent dated the
               Closing Date,  favorably opining as to the  enforceability of the
               Mortgages and Amendments to Existing Mortgages in Mississippi and
               otherwise in form and substance  satisfactory  to  Administrative
               Agent and Banks;

               (xii) a certificate  signed by an Authorized  Officer of Borrower
               stating that (a) the representations and warranties  contained in
               this  Agreement and the other Loan Papers are true and correct in
               all respects, (b) no Default or Event of Default has occurred and
               is  continuing,  and (c) all conditions set forth in this Section
                                                                         -------
               7.1 and Section 7.2 have been satisfied;
               ---     -----------

               (xiii)  a  Certificate  of  Ownership   Interests  signed  by  an
               Authorized  Officer of Borrower in the form of Exhibit I attached
                                                              ---------
               hereto;

               (xiv) a report or reports in form, scope and detail acceptable to
               Administrative   Agent  from   environmental   engineering  firms
               acceptable to Administrative Agent setting forth the results of a
               review of  Borrower's  Mineral  Interests and  operations,  which
               report(s)   shall  not   reflect  the   existence   of  facts  or
               circumstances  which would constitute a material violation of any
               Applicable  Environmental  Law or which are likely to result in a
               material liability to any Credit Party; and

               (xv) certificates from Borrower's  insurance broker setting forth
               the insurance maintained by Borrower, stating that such insurance
               is in full force and effect, that all premiums due have been paid
               and stating that such insurance is adequate and complies with the
               requirements of Section 9.6.
                               -----------

          (b) TITLE  REVIEW.  Administrative  Agent or its  counsel  shall  have
              -------------
completed  a review  of  title  to the  Initial  Required  Reserve  Value of all
Borrowing Base  Properties and such review shall not have revealed any condition
or  circumstance  which would reflect that the  representations  and  warranties
contained in Section 8.8 hereof are inaccurate in any respect.
             -----------

          (c)  CLOSING  TRANSACTIONS.  Subject  only  to  the  disbursement  and
               ---------------------
application of the initial  Borrowing,  Borrower  shall have  refinanced in full
with proceeds of a Borrowing under this Agreement,  all Obligations  accrued and
outstanding  under  the  Existing  Credit  Agreement  as of  the  Closing  Date,
including,  without limitation,  (i) the entire outstanding principal balance of
the "Revolving Loan" made thereunder,  (ii) all accrued but unpaid interest, and
(iii) all accrued but unpaid commitment and other fees.

                                     10-37

<PAGE>


          (d) NO MATERIAL  ADVERSE CHANGE.  In the sole discretion of each Bank,
              ---------------------------
no Material Adverse Change shall have occurred.

          (e) NO  LEGAL  PROHIBITION.  The  transactions  contemplated  by  this
              ----------------------
Agreement  shall be permitted by  applicable  Law and  regulation  and shall not
subject  any Agent or any Bank to any  material  adverse  change in its  assets,
liabilities,  financial condition, operations or prospects or subject any Credit
Party to a Material Adverse Change.

          (f) NO LITIGATION.  No litigation,  arbitration or similar  proceeding
              -------------
shall be  pending or  threatened  which  calls into  question  the  validity  or
enforceability  of this  Agreement,  the other Loan  Papers or the  transactions
contemplated hereby or thereby.

          (g) CLOSING FEES. Borrower shall have paid to Administrative Agent for
              ------------
the ratable  benefit of each Bank, and shall have paid to  Administrative  Agent
and its  Affiliates  (for its own  account),  the fees to be paid on the Closing
Date pursuant to Section 3.12.
                 ------------

          (h) OTHER MATTERS.  All matters related to this  Agreement,  the other
              -------------
Loan Papers and the Credit  Parties shall be acceptable to each Bank in its sole
discretion,  and each Credit Party shall have delivered to Administrative  Agent
and each Bank such  evidence as they shall request to  substantiate  any matters
related to this Agreement and the other Loan Papers as  Administrative  Agent or
any Bank shall request.

     Upon  satisfaction of each of the conditions set forth in this Section 7.1,
                                                                    -----------
Borrower   and   Administrative   Agent  shall   execute  the   Certificate   of
Effectiveness.   Upon  the  execution  and  delivery  of  the   Certificate   of
Effectiveness,  the Existing Credit Agreement shall automatically and completely
be amended and restated on the terms set forth herein  without  necessity of any
other action on the part of any Bank, any Agent or Borrower. Until execution and
delivery of the  Certificate of  Effectiveness,  the Existing  Credit  Agreement
shall remain in full force and effect in  accordance  with its terms.  Each Bank
hereby   authorizes   Administrative   Agent  to  execute  the   Certificate  of
Effectiveness  on its behalf and  acknowledges  and agrees that the execution of
the Certificate of  Effectiveness  by  Administrative  Agent shall be binding on
each such Bank.

     Section 7.2.  CONDITIONS TO EACH  BORROWING AND EACH LETTER OF CREDIT.  The
                   -------------------------------------------------------
obligation of each Bank to loan its Commitment  Percentage of each Borrowing and
the  obligation of  Administrative  Agent to issue,  extend,  amend or renew any
Letter of Credit on the date such  Letter of Credit is to be  issued,  extended,
amended  or renewed is subject  to the  further  satisfaction  of the  following
conditions:

          (a) timely receipt by Administrative  Agent of a Request for Borrowing
or a Request for Letter of Credit (as applicable);

          (b)  immediately  before and after giving effect to such  Borrowing or
issuance  of such  Letter of Credit,  no Default or Event of Default  shall have
occurred and be continuing  and the funding of such Borrowing or the issuance of
the  requested  Letter of Credit  (as  applicable)  shall not cause a Default or
Event of Default;

                                     10-38

<PAGE>

          (c) the  representations and warranties of each Credit Party contained
in this  Agreement and the other Loan Papers shall be true and correct on and as
of the  date of  such  Borrowing  or  issuance  of such  Letter  of  Credit  (as
applicable);

          (d)  the  amount  of the  requested  Borrowing  or the  amount  of the
requested Letter of Credit (as applicable) shall not exceed the Availability;

          (e) no Material Adverse Change shall have occurred; and

          (f) the funding of such  Borrowing  or the  issuance of such Letter of
Credit (as applicable) shall be permitted by applicable Law.

     The  funding of each  Borrowing  and the  issuance of each Letter of Credit
hereunder shall be deemed to be a representation and warranty by Borrower on the
date of such  Borrowing  and the date of issuance of each Letter of Credit as to
the facts specified in Section 7.2(b) through Section 7.2(e).
                       --------------         --------------

     Section  7.3.  POST-CLOSING  DELIVERIES.  On or prior to January 13,  2001,
                    ------------------------
Borrower shall (a) execute and deliver to Administrative Agent the Mortgages and
other  instruments  required by the last sentence of Section 6.1(a) hereof,  and
                                                     --------------
(b) deliver,  or cause to be delivered,  opinions of title or other  evidence of
title in form and substance  acceptable to Administrative  Agent and its counsel
regarding that portion of the Borrowing Base  Properties  which is not less than
the Required Reserve Value.

     Section   7.4.   AGREEMENTS   REGARDING   INITIAL   BORROWING.    Borrower,
                      --------------------------------------------
Administrative  Agent and each Bank  acknowledge  that all the  proceeds  of the
initial  Borrowing to be made on the Closing Date are to be applied to refinance
in full all Obligations  outstanding under and as defined in the Existing Credit
Agreement  (the  "REFINANCING  BORROWING").  Administrative  Agent and each Bank
                  ----------------------
hereby waive the  requirements of Section 3.2(a) and Section 7.2(a) with respect
                                  --------------     --------------
to the  Refinancing  Borrowing  to the  extent,  but  only to the  extent,  such
Sections  require  the  delivery  of a  Request  for  Borrowing  as a  condition
precedent to the  obligation of each Bank to loan its  Commitment  Percentage of
each Borrowing. Each Bank, Administrative Agent and Borrower further acknowledge
and agree that,  notwithstanding the contrary provisions of Section 3.2(c), each
                                                            --------------
Bank shall only be required to fund as part of such  Refinancing  Borrowing  the
remainder, if any (and as applicable),  of (a) its Commitment Percentage of such
Refinancing Borrowing,  minus (b) the amount it is to receive as a result of the
application  of the  proceeds of the  Refinancing  Borrowing  to  refinance  all
obligations outstanding under and as defined in the Existing Credit Agreement.

     Section 7.5. MATERIALITY OF CONDITIONS.  Each condition precedent herein is
                  -------------------------
material to the transactions  contemplated herein, and time is of the essence in
respect of each thereof.

                                     10-39

<PAGE>
                                  ARTICLE VIII

                         REPRESENTATIONS AND WARRANTIES
                         ------------------------------

     Borrower represents and warrants to Administrative Agent and each Bank that
each of the  following  statements  is true and correct on the date hereof,  and
will be true and correct on the occasion of each  Borrowing  and the issuance of
each Letter of Credit:

     Section  8.1.  CORPORATE  EXISTENCE  AND POWER.  Each Credit Party (a) is a
                    -------------------------------
corporation,  partnership  or limited  liability  company duly  incorporated  or
organized (as applicable),  validly existing and in good standing under the Laws
of its jurisdiction of  incorporation  or  organization,  (b) has all corporate,
partnership or limited  liability company power (as applicable) and all material
governmental licenses, authorizations,  consents and approvals required to carry
on its  businesses as now conducted and as proposed to be conducted,  and (c) is
duly  qualified to transact  business as a foreign  corporation,  partnership or
limited liability  company (as applicable) in each jurisdiction  where a failure
to be so qualified could have a Material Adverse Effect.

     Section 8.2. CREDIT PARTY AND  GOVERNMENTAL  AUTHORIZATION;  CONTRAVENTION.
                  -------------------------------------------------------------
The  execution,  delivery and  performance  of this Agreement and the other Loan
Papers by each Credit  Party (to the extent each Credit Party is a party to this
Agreement  and such Loan  Papers)  are within  such  Credit  Party's  corporate,
partnership or limited liability  company powers (as applicable),  when executed
will be duly  authorized  by all  necessary  corporate,  partnership  or limited
liability company action (as applicable), require no action by or in respect of,
or filing with, any Governmental Authority and do not contravene,  or constitute
a default under, any provision of applicable Law (including, without limitation,
the Margin  Regulations)  or of the articles or  certificate  of  incorporation,
bylaws,  regulations,  partnership  agreement or comparable charter documents of
any Credit Party or of any agreement,  judgment,  injunction,  order,  decree or
other  instrument  binding  upon any Credit  Party or result in the  creation or
imposition  of any Lien on any asset of any  Credit  Party  other than the Liens
securing the Obligations.

     Section 8.3. BINDING EFFECT. This Agreement constitutes a valid and binding
                  --------------
agreement of  Borrower;  the other Loan Papers when  executed  and  delivered in
accordance with this Agreement, will constitute valid and binding obligations of
each Credit Party  executing the same;  and each Loan Paper is, or when executed
and delivered, will be, enforceable against each Credit Party which executes the
same in accordance with its terms except as (i) the  enforceability  thereof may
be limited by bankruptcy,  insolvency or similar Laws affecting creditors rights
generally,  and (ii) the  availability  of equitable  remedies may be limited by
equitable principles of general applicability.

     Section 8.4. FINANCIAL INFORMATION.
                  ---------------------

          (a) The most  recent  annual  audited  consolidated  balance  sheet of
Borrower and the related  consolidated  statements of operations  and cash flows
for the Fiscal  Year then  ended,  copies of which have been  delivered  to each
Bank,  fairly  present,  in conformity  with GAAP,  the  consolidated  financial
position of  Borrower  as of the end of such  Fiscal  Year and its  consolidated
results of operations and cash flows for such Fiscal Year.


                                     10-40

<PAGE>

          (b) The most recent quarterly unaudited  consolidated balance sheet of
Borrower delivered to Banks, and the related unaudited  consolidated  statements
of  operations  and cash flows for the  portion of  Borrower's  Fiscal Year then
ended,  fairly present,  in conformity  with GAAP applied on a basis  consistent
with the financial  statements  referred to in Section 8.4(a),  the consolidated
                                               --------------
financial  position of Borrower as of such date and its consolidated  results of
operations and cash flows for such portion of Borrower's Fiscal Year.

          (c) Except as disclosed in writing to Banks prior to the execution and
delivery of this Agreement,  since the date of Borrower's most recent annual and
quarterly  consolidated balance sheet and consolidated  statements of operations
and cash flow delivered to Banks,  there has been no material  adverse change in
the assets, liabilities,  financial position, results of operations or prospects
of any Credit Party.

     Section  8.5. LITIGATION.  Except for matters  disclosed  on  Schedule  8.5
                   ----------
attached hereto,  there is no action,  suit or proceeding pending against, or to
the  knowledge of any Credit Party,  threatened  against or affecting any Credit
Party  before  any  Governmental  Authority  in  which  there  is  a  reasonable
possibility of an adverse decision which could have a Material Adverse Effect or
which could in any manner draw into question the validity of the Loan Papers.

     Section 8.6.  ERISA.  No Credit Party nor any ERISA Affiliate of any Credit
                   -----
Party  maintains or has ever  maintained or been  obligated to contribute to any
Plan  covered  by Title IV of ERISA or subject to the  funding  requirements  of
Section 412 of the Code or Section  302 of ERISA.  Each Plan  maintained  by any
Credit Party or any ERISA  Affiliate of any Credit Party is in compliance in all
material  respects with all applicable  Laws.  Except in such instances where an
omission or failure would not have a Material  Adverse Effect,  (a) all returns,
reports and notices required to be filed with any regulatory agency with respect
to any Plan  have  been  filed  timely,  and (b) no  Credit  Party nor any ERISA
Affiliate  of any Credit  Party has failed to make any  contribution  or pay any
amount due or owing as required  by the terms of any Plan.  There are no pending
or,  to  the  best  of  Borrower's  knowledge,   threatened  claims,   lawsuits,
investigations  or  actions  (other  than  routine  claims for  benefits  in the
ordinary  course)  asserted or instituted  against,  and no Credit Party nor any
ERISA  Affiliate of any Credit Party has knowledge of any threatened  litigation
or claims  against,  the assets of any Plan or its related  trust or against any
fiduciary of a Plan with  respect to the  operation of such Plan that are likely
to result in liability of any Credit  Party  having a Material  Adverse  Effect.
Except in such instances  where an omission or failure would not have a Material
Adverse Effect,  each Plan that is intended to be "qualified" within the meaning
of  section  401(a) of the Code is,  and has been  during  the  period  from its
adoption to date, so qualified,  both as to form and operation and all necessary
governmental   approvals,   including  a  favorable   determination  as  to  the
qualification under the Code of such Plan and each amendment thereto,  have been
or will be timely  obtained.  No Credit  Party  nor any ERISA  Affiliate  of any
Credit Party has engaged in any prohibited  transactions,  within the meaning of
section 406 of ERISA or section 4975 of the Code,  in  connection  with any Plan
which would result in  liability  of any Credit Party having a Material  Adverse
Effect. No Credit Party nor any ERISA Affiliate of any Credit Party maintains or
contributes to any Plan that provides a  post-employment  health benefit,  other
than a benefit  required under Section 601 of ERISA, or maintains or contributes
to a Plan that  provides  health  benefits that is not fully funded except where
the failure to fully fund such Plan would not have a Material Adverse Effect. No
Credit Party nor any ERISA Affiliate of any Credit Party


                                     10-41


<PAGE>

maintains,  has  established  or has ever  participated  in a multiple  employer
welfare benefit arrangement within the meaning of section 3(40)(A) of ERISA.

     Section 8.7.  TAXES AND FILING OF TAX RETURNS.  Each Credit Party has filed
                   -------------------------------
all tax  returns  required to have been filed and has paid all Taxes shown to be
due and payable on such returns, including interest and penalties, and all other
Taxes which are  payable by such  party,  to the extent the same have become due
and  payable,  other than Taxes with respect to which a failure to pay would not
have a Material Adverse Effect.  No Credit Party knows of any proposed  material
Tax  assessment  against it and all Tax  liabilities  of each  Credit  Party are
adequately  provided  for.  Except as disclosed in writing to Banks prior to the
date  hereof,  no income tax  liability in excess of $50,000 of any Credit Party
has  been  asserted  by the  Internal  Revenue  Service  or  other  Governmental
Authority for Taxes in excess of those already paid.

     Section 8.8. OWNERSHIP OF PROPERTIES GENERALLY.  Each Credit Party has good
                  ---------------------------------
and valid fee simple or leasehold  title to all material  properties  and assets
purported to be owned by it, including, without limitation, all assets reflected
in the balance  sheets  referred to in Section 8.4(a) and Section 8.4(b) and all
                                       -------------      -------------
assets which are used by the Credit Parties in the operation of their respective
businesses,  and none of such  properties or assets is subject to any Lien other
than Permitted Encumbrances.

     Section 8.9. MINERAL  INTERESTS.  Borrower has good and defensible title to
                  ------------------
all Mineral  Interests  described  in the  Reserve  Report,  including,  without
limitation,  all Borrowing Base  Properties,  free and clear of all Liens except
Permitted Encumbrances and Immaterial Title Deficiencies.  With the exception of
Immaterial Title Deficiencies, all such Mineral Interests are valid, subsisting,
and in full force and effect, and all rentals,  royalties, and other amounts due
and  payable  in respect  thereof  have been duly  paid.  Without  regard to any
consent or non-consent  provisions of any joint operating agreement covering any
of Borrower's  Proved  Mineral  Interests,  and with the exception of Immaterial
Title  Deficiencies,  Borrower's  share of (a) the costs for each Proved Mineral
Interest  described  in the  Reserve  Report  is not  greater  than the  decimal
fraction set forth in the Reserve Report,  before and after payout,  as the case
may  be,  and  described  therein  by  the  respective   designations   "working
interests,"  "WI," "gross working  interest,"  "GWI," or similar terms,  and (b)
production  from,  allocated  to,  or  attributed  to each such  Proved  Mineral
Interest is not less than the decimal  fraction set forth in the Reserve Report,
before  and after  payout,  as the case may be,  and  described  therein  by the
designations "net revenue interest," "NRI," or similar terms. Except in the case
of wells which,  in the  aggregate,  represent less than two percent (2%) of the
production from the Proved Producing Mineral Interests  described in the Reserve
Report,  each well drilled in respect of each Proved Producing  Mineral Interest
described in the Reserve  Report (y) is capable of, and is presently,  producing
hydrocarbons in commercially  profitable  quantities,  and Borrower is currently
receiving payments for its share of production,  with no funds in respect of any
thereof being  presently held in suspense,  other than any such funds being held
in suspense  pending delivery of appropriate  division orders,  and (z) has been
drilled,  bottomed,  completed,  and operated in compliance  with all applicable
Laws and no such well which is currently  producing  Hydrocarbons  is subject to
any penalty in  production  by reason of such well having  produced in excess of
its allowable production.


                                     10-42

<PAGE>

     Section 8.10. LICENSES,  PERMITS, ETC. Except as disclosed on Schedule 8.10
                   -----------------------                         -------------
attached hereto, each Credit Party possesses such valid franchises, certificates
of convenience and necessity,  operating rights,  licenses,  permits,  consents,
authorizations,  exemptions  and  orders  of  Governmental  Authorities,  as are
necessary  to carry on its  business  as now  conducted  and as  proposed  to be
conducted, except to the extent a failure to obtain any such item would not have
a Material Adverse Effect.

     Section  8.11. COMPLIANCE  WITH LAW. The  business and  operations  of each
                    --------------------
Credit Party have been and are being conducted in accordance with all applicable
Laws  other  than  violations  of Laws  which  do not  (either  individually  or
collectively) have a Material Adverse Effect.

     Section 8.12. FULL DISCLOSURE. All information heretofore furnished by each
                   ---------------
Credit  Party  to  Administrative  Agent  or  any  Bank  for  purposes  of or in
connection with this Agreement,  any Loan Paper or any transaction  contemplated
hereby or thereby  is, and all such  information  hereafter  furnished  by or on
behalf of any Credit  Party to  Administrative  Agent or any Bank will be, true,
complete  and  accurate  in every  material  respect.  The Credit  Parties  have
disclosed  or have caused to be  disclosed to Banks in writing any and all facts
(other  than  facts of general  public  knowledge)  which  might  reasonably  be
expected to result in a Material Adverse Change.

     Section 8.13. ORGANIZATIONAL STRUCTURE;  NATURE OF BUSINESS.  Borrower owns
                   ---------------------------------------------
one hundred percent (100%) of the issued and outstanding common stock in TRI and
DES and one  hundred  percent  (100%)  of the  issued  and  outstanding  limited
liability company interests in Marine.  Borrower has no Subsidiaries  other than
Marine,  DES and TRI. Neither Marine nor DES has any  Subsidiaries.  Borrower is
engaged only in the business of acquiring,  exploring,  developing and operating
Mineral  Interests and the production and marketing of  hydrocarbons  therefrom.
Marine is engaged  only in the  business  of marine oil field  services.  DES is
engaged only in the business of oil and gas marketing and related services.  TRI
does not have any assets,  operations,  liabilities,  employees  or  contractual
relationships.  Schedule  8.13  attached  hereto  accurately  reflects  (i)  the
                --------------
jurisdiction of  incorporation  or organization of each Credit Party,  (ii) each
jurisdiction  in which each Credit Party is qualified to transact  business as a
foreign  corporation,  foreign partnership or foreign limited liability company,
(iii) the authorized,  issued and outstanding  Equity of each Credit Party,  and
(iv)  all  outstanding  warrants,  options,   subscription  rights,  convertible
securities or other rights to purchase Equity of each Credit Party.

     Section  8.14.  ENVIRONMENTAL  MATTERS.  Except for  matters  disclosed  on
                     ----------------------
Schedule 9.10 attached hereto, no operation conducted by any Credit Party and no
-------------
real or personal  property now or previously owned or leased by any Credit Party
(including,  without  limitation,  any Credit Party's Mineral  Interests) and no
operations  conducted  thereon,  and  to  any  Credit  Parties'  knowledge,   no
operations of any prior owner, lessee or operator of any such properties,  is or
has been in violation of any Applicable  Environmental Law other than violations
which neither  individually  nor in the aggregate  will have a Material  Adverse
Effect. Except for matters disclosed on Schedule 9.10 attached hereto, no Credit
                                        -------------
Party,  nor any such  property  nor  operation  is the subject of any  existing,
pending or, to any Credit Parties' knowledge, threatened Environmental Complaint
which could,  individually or in the aggregate,  have a Material Adverse Effect.
All  notices,  permits,  licenses,  and similar  authorizations,  required to be
obtained  or  filed  in  connection  with the  ownership  of each  tract of real
property or  operations  of any Credit  Party  thereon and each item of personal
property owned, leased or operated by any Credit Party,

                                     10-43

<PAGE>

including,  without limitation,  notices,  licenses,  permits and authorizations
required in connection with any past or present treatment, storage, disposal, or
release of Hazardous Substances into the environment, have been duly obtained or
filed except to the extent the failure to obtain or file such notices, licenses,
permits  and  authorizations  would  not have a  Material  Adverse  Effect.  All
Hazardous Substances,  generated at each tract of real property and by each item
of personal  property  owned,  leased or operated by any Credit  Party have been
transported, treated, and disposed of only by carriers or facilities maintaining
valid  permits  under RCRA (as  hereinafter  defined)  and all other  Applicable
Environmental Laws for the conduct of such activities except in such cases where
the failure to obtain such permits would not,  individually or in the aggregate,
have a Material  Adverse Effect.  Except for matters  disclosed on Schedule 9.10
                                                                   -------------
attached  hereto,  there  have been no  Hazardous  Discharges  which were not in
compliance with  Applicable  Environmental  Laws other than Hazardous  Discharge
which  would not,  individually  or in the  aggregate,  have a Material  Adverse
Effect. Except for matters disclosed on Schedule 9.10 attached hereto, no Credit
                                        -------------
Party has any contingent  liability in connection  with any Hazardous  Discharge
which could reasonably be expected to have a Material Adverse Effect. As used in
this Section  8.14,  the term "RCRA" shall mean the  Resource  Conservation  and
     -------------             ----
Recovery  Act of 1976,  as amended by the Used Oil  Recycling  Act of 1980,  the
Solid Waste  Recovery Act of 1976, as amended by the Solid Waste Disposal Act of
1980,  and the Hazardous and Solid Waste  Amendments of 1984, as the same may be
further amended and in effect from time to time.

     Section  8.15.  BURDENSOME  OBLIGATIONS.  No Credit  Party,  nor any of the
                     -----------------------
properties  of any  Credit  Party,  is  subject  to any  Law or any  pending  or
threatened  change of Law or subject to any  restriction  under its articles (or
certificate) of incorporation,  bylaws,  regulations,  partnership  agreement or
comparable  charter  documents or under any agreement or instrument to which any
Credit  Party or by which any  Credit  Party or any of their  properties  may be
subject  or bound,  which is so  unusual  or  burdensome  as to be likely in the
foreseeable  future to have a Material  Adverse  Effect.  Without  limiting  the
foregoing,  no Credit Party is a party to or bound by any agreement  (other than
the Loan  Papers) or subject to any order of any  Governmental  Authority  which
prohibits  or  restricts  in any  way the  right  of such  Credit  Party  or any
Subsidiary of any Credit Party to make Distributions.

     Section  8.16.  FISCAL  YEAR.  Borrower's  Fiscal Year is January 1 through
                     ------------
December 31.

     Section  8.17.  NO  DEFAULT.  Neither a Default nor an Event of Default has
                     -----------
occurred or will exist after giving effect to the  transactions  contemplated by
this Agreement or the other Loan Papers.

     Section  8.18.  GOVERNMENT  REGULATION.  No  Credit  Party  is  subject  to
                     ----------------------
regulation  under the Public  Utility  Holding  Company Act of 1935, the Federal
Power Act, the  Interstate  Commerce Act (as any of the preceding acts have been
amended),  the Investment  Company Act of 1940 or any other Law which  regulates
the incurring by such Credit Party of Debt,  including,  but not limited to Laws
relating to common  contract  carriers or the sale of  electricity,  gas, steam,
water or other public utility services.

     Section 8.19.  INSIDER.  No Credit Party is, and no Person having "control"
                    -------
(as that term is defined in 12 U.S.C. Section 375(b) or regulations  promulgated
thereunder) of any Credit

                                     10-44


<PAGE>

Party is an "executive  officer," "director" or "shareholder" of any Bank or any
bank holding  company of which any Bank is a Subsidiary or of any  Subsidiary of
such bank holding company.

     Section 8.20. GAS BALANCING  AGREEMENTS AND ADVANCE PAYMENT  CONTRACTS.  On
                   --------------------------------------------------------
the date of this Agreement,  (a) there is no Material Gas Imbalance, and (b) the
aggregate  amount of all Advance  Payments  received  by any Credit  Party under
Advance  Payment  Contracts  which  have  not  been  satisfied  by  delivery  of
production does not exceed $1,000,000.

                                   ARTICLE IX

                              AFFIRMATIVE COVENANTS
                              ---------------------

     Borrower  covenants and agrees that, so long as any Bank has any commitment
to lend or  participate  in Letter of Credit  Exposure  hereunder  or any amount
payable  under  any  Note  remains  unpaid  or  any  Letter  of  Credit  remains
outstanding:

     Section 9.1. INFORMATION.  Borrower will deliver, or cause to be delivered,
                  -----------
to each Bank:

          (a) as soon as  available  and in any event  within  ninety  (90) days
after the end of each Fiscal Year, consolidated balance sheets of Borrower as of
the end of such Fiscal Year and the related  consolidated  statements  of income
and statements of cash flow for such Fiscal Year,  setting forth in each case in
comparative  form the figures for the  previous  Fiscal  Year,  all  reported by
Borrower in  accordance  with GAAP and audited by a firm of  independent  public
accountants of nationally  recognized  standing and acceptable to Administrative
Agent;  to the extent  Borrower's  Form of 10-K filed  with the  Securities  and
Exchange  Commission for each Fiscal Year contains all  information  required by
this Section  9.1(a),  Borrower may satisfy its  obligations  under this Section
     ---------------                                                     -------
9.1(a) for each Fiscal Year by  delivering to Banks a copy of such Form 10-K for
------
such Fiscal Year;

          (b) as soon as available and in any event within  forty-five (45) days
after the end of each of the first  three (3)  Fiscal  Quarters  of each  Fiscal
Year,  consolidated  balance  sheets of  Borrower  as of the end of such  Fiscal
Quarter and the related consolidated statements of income and statements of cash
flow for such quarter and for the portion of Borrower's Fiscal Year ended at the
end of such Fiscal Quarter,  setting forth in each case in comparative  form the
figures  for  the  corresponding   quarter  and  the  corresponding  portion  of
Borrower's  previous Fiscal Year; to the extent  Borrower's Form 10-Q filed with
the  Securities and Exchange  Commission  for each Fiscal  Quarter  contains all
information   required  by  this  Section  9.1(b),   Borrower  may  satisfy  its
                                  ---------------
obligations  under this Section  9.1(b) for each Fiscal Quarter by delivering to
                        ---------------
Banks a copy of such Form 10-Q for such Fiscal Quarter. All financial statements
delivered  pursuant to this Section  9.1(b) shall be certified as to fairness of
                            ---------------
presentation, GAAP and consistency by a Financial Officer of Borrower;

          (c)  simultaneously  with  the  delivery  of  each  set  of  financial
statements  referred to in Section  9.1(a) and Section 9.1(b) a certificate of a
                           ---------------     --------------
Financial  Officer of  Borrower  in the form of Exhibit J attached  hereto,  (i)
                                                ---------
setting  forth in  reasonable  detail the  calculations  required  to  establish
whether  Borrower was in compliance  with the  requirements of Article XI on the
                                                               ----------
date of

                                     10-45

<PAGE>

such financial statements, (ii) stating whether there exists on the date of such
certificate  any Default  and, if any Default  then  exists,  setting  forth the
details thereof and the action which Borrower is taking or proposes to take with
respect thereto,  (iii) stating whether or not such financial  statements fairly
reflect in all  material  respects  the  results  of  operations  and  financial
condition  of  Borrower  as of  the  date  of the  delivery  of  such  financial
statements and for the period covered thereby, (iv) setting forth (A) whether as
of such date there is a Material Gas  Imbalance  and, if so,  setting  forth the
amount of net gas imbalances under Gas Balancing Agreements to which Borrower is
a party or by which any Mineral  Interests  owned by Borrower is bound,  and (B)
the aggregate  amount of all Advance  Payments  received  under Advance  Payment
Contracts to which Borrower is a party or by which any Mineral  Interests  owned
by Borrower is bound which have not been satisfied by delivery of production, if
any, and (v) setting forth a summary of the Hedge Transactions to which Borrower
is a party on such date;

          (d)  promptly  upon the  mailing  thereof to the  stockholders  of any
Credit Party generally,  copies of all financial  statements,  reports and proxy
statements so mailed;

          (e) promptly upon the filing thereof, copies of all final registration
statements,  post effective amendments thereto and annual,  quarterly or special
reports which any Credit Party shall have filed with the Securities and Exchange
Commission;  provided, that Borrower must deliver, or cause to be delivered, any
             --------  ----
annual  reports which any Credit Party shall have filed with the  Securities and
Exchange  Commission,  within ninety (90) days after the end of each Fiscal Year
of such Credit  Party,  and any  quarterly  reports which any Credit Party shall
have filed with the Securities and Exchange  Commission,  within forty-five (45)
days after the end of each of the first three (3) Fiscal Quarters of each Fiscal
Year of such Credit Party;

          (f)  promptly  upon receipt of same,  any notice or other  information
received by any Credit Party  indicating  (i) any  potential,  actual or alleged
non-compliance   with  or  violation  of  the  requirements  of  any  Applicable
Environmental Law which could result in liability to any Credit Party for fines,
clean up or any other  remediation  obligations or any other liability in excess
of $500,000 in the aggregate;  (ii) any  threatened  Hazardous  Discharge  which
Hazardous  Discharge  would  impose  on any  Credit  Party a duty to report to a
Governmental  Authority or to pay cleanup costs or to take remedial action under
any Applicable  Environmental  Law which could result in liability to any Credit
Party  for  fines,  clean up and  other  remediation  obligations  or any  other
liability in excess of $500,000 in the aggregate;  or (iii) the existence of any
Lien arising under any Applicable  Environmental  Law securing any obligation to
pay fines,  clean up or other remediation costs or any other liability in excess
of $500,000 in the aggregate.  Without limiting the foregoing, each Credit Party
shall provide to Banks  promptly upon receipt of same by any Credit Party copies
of all  environmental  consultants or engineers  reports  received by any Credit
Party which would render the  representation  and warranty  contained in Section
                                                                         -------
8.14 untrue or inaccurate in any respect;
----
          (g)  In the  event  any  notification  is  provided  to  any  Bank  or
Administrative  Agent pursuant to Section 9.1(f) hereof or Administrative  Agent
                                  --------------
or any Bank  otherwise  learns of any event or  condition  under  which any such
notice would be required,  then, upon request of Required Banks,  Borrower shall
within thirty (30) days of such request, cause to be furnished to Administrative
Agent and each Bank a report by an  environmental  consulting firm acceptable to
Administrative  Agent and Required  Banks,  stating that a review of such event,
condition or

                                     10-46

<PAGE>

circumstance  has been  undertaken  (the scope of which shall be  acceptable  to
Administrative Agent and Required Banks) and detailing the findings, conclusions
and  recommendations  of such  consultant.  Borrower shall bear all expenses and
costs associated with such review and updates thereof;

          (h)  immediately  upon any  Authorized  Officer  of any  Credit  Party
becoming aware of the occurrence of any Default,  a certificate of an Authorized
Officer of  Borrower  setting  forth the details  thereof  and the action  which
Borrower is taking or proposes to take with respect thereto;

          (i) no later than February 28, and August 31 of each year,  reports of
production  volumes,  revenue,  expenses and product  prices for all oil and gas
properties owned by Borrower with a Recognized Value of $500,000 or more for the
periods  of six (6)  months  ending  the  preceding  December  31 and  June  30,
respectively.  Such reports  shall be prepared on an accrual  basis and shall be
reported on a field by field basis;

          (j) promptly notify Banks of any Material Adverse Change;

          (k) promptly  notify Banks of any material  litigation  involving  any
Credit Party; and

          (l)  from  time to time  such  additional  information  regarding  the
financial  position or business of any Credit Party as Administrative  Agent, at
the request of any Bank, may reasonably request.

     Section 9.2. BUSINESS OF CREDIT PARTIES. The sole business of Borrower will
                  --------------------------
continue to be (a) the  issuance of equity and debt  securities  not  prohibited
pursuant to the provisions of this Agreement, (b) the acquisition,  exploration,
development and operation of Mineral  Interests and the production and marketing
of  Hydrocarbons  therefrom,  (c) the ownership of one hundred percent (100%) of
the issued and outstanding limited liability company interests of Marine and one
hundred  percent (100%) of the issued and  outstanding  common stock of DES, and
(d) activities reasonably related to the businesses of Borrower described in the
foregoing  clauses  (a)  and  (c),  including,  without  limitation,  activities
necessary to comply with the  reporting  requirements  of the Exchange  Act, and
with rules and  regulations  of  applicable  securities  exchanges  or which are
otherwise  incident to being a publicly  traded  company.  The sole  business of
Marine will continue to be marine oil field  services.  The sole business of DES
will continue to be oil and gas marketing and related services.  TRI will remain
a shell corporation with no assets or operations.

     Section 9.3. MAINTENANCE OF EXISTENCE. Borrower shall, and shall cause each
                  ------------------------
other Credit Party to, at all times (a) maintain its  corporate,  partnership or
limited   liability   company   existence  in  its  state  of  incorporation  or
organization,  and (b) maintain its good standing and  qualification to transact
business in all  jurisdictions  where the failure to maintain  good  standing or
qualification  to  transact  business  could  have a  Material  Adverse  Effect.
Notwithstanding the foregoing, TRI may dissolve at anytime.

     Section 9.4. TITLE DATA. In addition to the title  information  required by
                  ----------
Section 6.1(c) and Section 7.1(b) hereof,  Borrower  shall,  upon the request of
--------------     --------------
Required Banks, cause to be

                                     10-47

<PAGE>

delivered to  Administrative  Agent such title  opinions  and other  information
regarding  title to Mineral  Interests  owned by Borrower as are  appropriate to
determine the status thereof; provided, however, that, Banks may not require the
                              --------  -------  ----
Credit  Parties to furnish title  opinions  (except  pursuant to Section 6.1 and
                                                                 -----------
Section  7.1(b))  unless (a) an Event of  Default  shall  have  occurred  and be
---------------
continuing,  or (b) Required Banks have reason to believe that there is a defect
in or encumbrance upon Borrower's title to such Mineral  Interests that is not a
Permitted Encumbrance.

     Section 9.5. RIGHT OF INSPECTION. Borrower will permit, and will cause each
                  -------------------
other Credit Party to permit,  any officer,  employee or agent of Administrative
Agent or of any Bank to visit and inspect any of the assets of any Credit Party,
examine  each  Credit  Party's  books of record and  accounts,  take  copies and
extracts  therefrom,  and discuss the  affairs,  finances  and  accounts of each
Credit Party with such Credit Party's officers, accountants and auditors, all at
such  reasonable  times  and as  often as  Administrative  Agent or any Bank may
desire, all at the expense of Borrower.

     Section 9.6.  MAINTENANCE OF INSURANCE.  Borrower will, and will cause each
                   ------------------------
other Credit Party to, at all times maintain or cause to be maintained insurance
covering such risks as are customarily carried by businesses similarly situated,
including,   without  limitation,  the  following:  (a)  workmen's  compensation
insurance;  (b) employer's liability insurance; (c) comprehensive general public
liability  and property  damage  insurance;  (d) insurance  against  (other than
losses or damage to property  owned by Borrower  which is self  insured)  losses
customarily  insured  against  as a result of damage by fire,  lightning,  hail,
tornado,  explosion  and other similar risk;  and (e)  comprehensive  automobile
liability  insurance.  All loss payable clauses or provisions in all policies of
insurance  maintained by any Credit Party  pursuant to this Section 9.6 shall be
                                                            -----------
endorsed in favor of and made  payable to  Administrative  Agent for the ratable
benefit of Banks, as their interests may appear. Administrative Agent shall have
the right,  for the ratable  benefit of Banks,  to collect,  and Borrower hereby
assigns to  Administrative  Agent for the  ratable  benefit of Banks (and hereby
agrees to cause each other Credit Party to assign),  any and all monies that may
become payable under any such policies of insurance by reason of damage, loss or
destruction of any of property  which stands as security for the  Obligations or
any part thereof,  and Administrative  Agent may, at its election,  either apply
for the ratable benefit of Banks all or any part of the sums so collected toward
payment of the  Obligations,  whether or not such  Obligations  are then due and
payable, in such manner as Administrative Agent may elect or release same to the
applicable Credit Party.

     Section 9.7.  PAYMENT OF TAXES AND CLAIMS.  Borrower  will,  and will cause
                   ---------------------------
each  other  Credit  Party to, pay (a) all Taxes  imposed  upon it or any of its
assets or with  respect to any of its  franchises,  business,  income or profits
before any material penalty or interest  accrues  thereon,  and (b) all material
claims (including, without limitation, claims for labor, services, materials and
supplies)  for sums which have  become due and  payable and which by Law have or
might become a Lien (other than a Permitted  Encumbrance)  on any of its assets;
provided,  however,  no payment of Taxes or claims  shall be required if (i) the
--------   -------
amount,  applicability  or validity thereof is currently being contested in good
faith by  appropriate  action  promptly  initiated and  diligently  conducted in
accordance with good business  practices and no material part of the property or
assets of  Borrower,  and no part of the assets of any  Subsidiary  of  Borrower
which  would  be  material  to  Borrower,  is  subject  to any  pending  levy or
execution, (ii) Borrower, and any


                                     10-48
<PAGE>



Subsidiary of Borrower,  as and to the extent  required in accordance with GAAP,
shall have set aside on their books reserves  (segregated to the extent required
by GAAP) deemed by them to be adequate with respect thereto,  and (iii) Borrower
has notified Administrative Agent of such circumstances,  in detail satisfactory
to Administrative Agent.

     Section 9.8.  COMPLIANCE  WITH LAWS AND DOCUMENTS.  Borrower will, and will
                   -----------------------------------
cause  each  other  Credit  Party to,  comply  with all Laws,  their  respective
certificates  (or articles) of  incorporation,  bylaws,  regulations and similar
organizational  documents and all Material  Agreements to which any Credit Party
is a  party,  if a  violation,  alone  or when  combined  with  all  other  such
violations,  could have a Material  Adverse  Effect.

     Section 9.9. OPERATION OF PROPERTIES AND EQUIPMENT.
                  -------------------------------------

          (a)  Borrower  will,  and will  cause  each  other  Credit  Party  to,
maintain,  develop and operate its Mineral  Interests in a good and  workmanlike
manner, and observe and comply with all of the terms and provisions,  express or
implied, of all oil and gas leases relating to such Mineral Interests so long as
such Mineral  Interests are capable of producing  Hydrocarbons  and accompanying
elements in paying  quantities,  except  where such  failure to comply would not
have a Material Adverse Effect.

          (b) Borrower  will,  and will cause each other Credit Party to, comply
in all respects with all contracts and  agreements  applicable to or relating to
its Mineral Interest or the production and sale of Hydrocarbons and accompanying
elements therefrom, except to the extent a failure to so comply would not have a
Material Adverse Effect.

          (c) Borrower  will,  and will cause each other Credit Party to, at all
times maintain,  preserve and keep all operating  equipment used with respect to
its Mineral  Interests in proper repair,  working order and condition,  and make
all necessary or  appropriate  repairs,  renewals,  replacements,  additions and
improvements thereto so that the efficiency of such operating equipment shall at
all times be properly  preserved  and  maintained,  except where such failure to
comply would not have a Material Adverse Effect; provided, further that, no item
                                                 --------  ------------
of operating  equipment  need be so  repaired,  renewed,  replaced,  added to or
improved,  if  Borrower  shall in good faith  determine  that such action is not
necessary or desirable for the continued  efficient and profitable  operation of
the business of such Credit Party.

     Section 9.10. ENVIRONMENTAL LAW COMPLIANCE.  Except to the extent a failure
                   ----------------------------
to comply would not have a Material  Adverse  Effect,  Borrower  will,  and will
cause each other Credit Party to, comply with all Applicable Environmental Laws,
including, without limitation, (a) all licensing,  permitting,  notification and
similar requirements of Applicable Environmental Laws, and (b) all provisions of
all  Applicable  Environmental  Laws  regarding  storage,  discharge,   release,
transportation,  treatment and disposal of Hazardous Substances.  Borrower will,
and will cause each other Credit Party to,  promptly pay and discharge  when due
all legal  debts,  claims,  liabilities  and  obligations  with  respect  to any
clean-up  or   remediation   measures   necessary  to  comply  with   Applicable
Environmental Laws.

     Section 9.11.  ERISA  REPORTING  REQUIREMENTS.  Borrower shall furnish,  or
                    ------------------------------
cause to be furnished, to Administrative Agent:



                                     10-49

<PAGE>

          (a)  promptly  and in any  event (i)  within  thirty  (30) days  after
Borrower or any ERISA Affiliate  receives  notice from any regulatory  agency of
the commencement of an audit,  investigation or similar  proceeding with respect
to a Plan, and (ii) within ten (10) days after  Borrower or any ERISA  Affiliate
contacts  the Internal  Revenue  Service for the purpose of  participation  in a
closing  agreement or any  voluntary  resolution  program with respect to a Plan
which could have a Material  Adverse  Effect or knows or has reason to know that
any event  with  respect  to any Plan of  Borrower  or any ERISA  Affiliate  has
occurred that is reasonably  believed by Borrower to potentially have a Material
Adverse  Effect,  a written notice  describing  such event and  describing  what
action is being taken or is proposed to be taken with respect thereto,  together
with a copy of any notice of such event that is given to the PBGC;

          (b)  promptly  and in any event  within  thirty  (30)  days  after the
receipt by  Borrower of a request  therefor by a Bank,  copies of any annual and
other  report  (including  Schedule B thereto)  with  respect to a Plan filed by
                           ----------
Borrower or any ERISA Affiliate with the United States  Department of Labor, the
Internal Revenue Service or the PBGC;

          (c) notification within thirty (30) days of the effective date thereof
of any material  increases in the  benefits,  or material  change in the funding
method,  of any existing Plan which is not a  multiemployer  plan (as defined in
section 4001(a)(3) of ERISA), or the establishment of any material new Plans, or
the  commencement  of  contributions  to any Plan to which Borrower or any ERISA
Affiliate was not previously contributing; and

          (d) promptly after receipt of written notice of commencement  thereof,
notice of all (i) claims made by participants or  beneficiaries  with respect to
any  Plan,  and  (ii)  actions,  suits  and  proceedings  before  any  court  or
governmental department,  commission,  board, bureau, agency or instrumentality,
domestic or foreign,  affecting  Borrower or any ERISA Affiliate with respect to
any Plan,  except those which, in the aggregate,  if adversely  determined could
not have a Material Adverse Effect.

     Section 9.12.  ADDITIONAL  DOCUMENTS.  Borrower  will,  and will cause each
                    ---------------------
other Credit Party to, cure promptly any defects in the creation and issuance of
each Note,  and the execution and delivery of this  Agreement and the other Loan
Papers and, at Borrower's expense,  Borrower shall promptly and duly execute and
deliver to each Bank,  and cause each other  Credit  Party to promptly  and duly
execute and deliver to each Bank,  upon reasonable  request,  all such other and
further   documents,   agreements  and   instruments   in  compliance   with  or
accomplishment  of the  covenants and  agreements of the Credit  Parties in this
Agreement  and  the  other  Loan  Papers  as  may  be  reasonably  necessary  or
appropriate in connection therewith.

     Section   9.13.   ENVIRONMENTAL   REVIEW.   Borrower   shall   deliver   to
                       ----------------------
Administrative Agent prior to the completion by any Credit Party of any material
acquisition of Mineral Interests or related assets, other than an acquisition of
additional  interests in Mineral  Interests  in which a Credit Party  previously
held an interest, a report or reports obtained by Borrower in the course of such
acquisition,  which  report or reports  shall set forth the results of a Phase I
environmental  review of such Mineral  Interests  and related  assets.  Borrower
shall  deliver  to  Administrative  Agent a report  or  reports  related  to any
material acquisition by any Credit Party of Mineral Interests or related assets,
other than an acquisition of additional  interests in Mineral Interests in which
a Credit Party previously held an interest, as requested by Administrative Agent
or

                                     10-50

<PAGE>

Required  Banks in writing,  which report shall be delivered  within  forty-five
(45) days of Administrative Agent's or Required Banks' written request and shall
be  in  form,  scope  and  detail  acceptable  to   Administrative   Agent  from
environmental engineering firms acceptable to Administrative Agent, which report
or reports shall set forth the results of a Phase I environmental review of such
Mineral  Interests  and  related  assets.   All  of  the  reports  delivered  to
Administrative  Agent  pursuant  to this  Section  9.13  shall not  reflect  the
                                          -------------
existence of facts or circumstances  which would constitute a material violation
of any Applicable  Environmental Law or which are likely to result in a material
liability to any Credit Party.

                                    ARTICLE X

                               NEGATIVE COVENANTS
                               ------------------

     Borrower  agrees that,  so long as any Bank has any  commitment  to lend or
participate in Letter of Credit  Exposure  hereunder or any amount payable under
any Note remains unpaid or any Letter of Credit remains outstanding:

     Section 10.1.  INCURRENCE  OF DEBT.  Borrower will not, nor will permit any
                    -------------------
other Credit Party to, incur,  become or remain  liable for any Debt;  provided,
                                                                       --------
that (a) Borrower may incur,  become or remain  liable for (i) the  Obligations,
----
and (ii) other unsecured Debt in an aggregate amount outstanding at any time not
to exceed  $10,000,000,  (b)  Borrower may incur,  become and remain  liable for
Permitted Subordinate Debt, and (c) any Subsidiary of Borrower may incur, become
and remain liable for Permitted Subordinate Debt as a guarantor;  provided, that
                                                                  --------  ----
(i) such Guarantees of Permitted  Subordinate  Debt shall be subordinated to the
Obligations  pursuant to  subordination  provisions  approved by Required Banks,
such approval to not be unreasonably  withheld,  and (ii) prior to the execution
and  delivery  by any  Subsidiary  of  Borrower  of any  Guaranty  of  Permitted
Subordinate   Debt,  such  Subsidiary  shall  have  executed  and  delivered  to
Administrative  Agent for the ratable benefit of Banks a Facility Guaranty,  and
all the Equity of such  Subsidiary  owned by Borrower shall have been pledged to
Administrative Agent pursuant to a Borrower Pledge Agreement.

     Section  10.2.  RESTRICTED  PAYMENTS.  Borrower will not, nor will Borrower
                     --------------------
permit any other Credit  Party to,  directly or  indirectly,  declare or pay, or
incur any liability to declare or pay, any Restricted  Payment;  provided,  that
                                                                 --------   ----
(a) any  Subsidiary  of Borrower may make  Distributions  to  Borrower,  (b) any
Credit Party may make  Distributions to any other Credit Party that has provided
a Facility  Guaranty,  and all of the Equity of which  owned by  Borrower or any
Indirect  Subsidiary (as  applicable) has been pledged to  Administrative  Agent
pursuant to a Borrower  Pledge  Agreement or a Subsidiary  Pledge  Agreement (as
applicable),  and (c) so long as (i) no Default  or  Borrowing  Base  Deficiency
exists on the date any such  Distribution  is declared or paid and no Default or
Event of Default would result  therefrom,  and (ii) the Borrowing  Base does not
exceed the Conforming  Borrowing Base on the date such  Restricted  Payments are
declared or paid,  in addition to  Distributions  permitted  under the preceding
clauses (a) and (b),  Borrower may make Restricted  Payments up to $5,000,000 in
the aggregate in any Fiscal Year.

     Section 10.3. NEGATIVE PLEDGE.  Borrower will not, nor will Borrower permit
                   ---------------
any other Credit Party to, create,  assume or suffer to exist any Lien on any of
their respective assets, other than Permitted  Encumbrances.  Borrower will not,
nor will Borrower permit any other Credit


                                     10-51

<PAGE>

Party  to,  enter  into or  become  bound  by any  agreement  (other  than  this
Agreement)  that  prohibits or otherwise  restricts the right of Borrower or any
other Credit Party to create, assume or suffer to exist any Lien on any of their
respective  assets in favor of  Administrative  Agent for the ratable benefit of
Banks.

     Section  10.4.  CONSOLIDATIONS  AND MERGERS.  Borrower  will not,  nor will
                     ---------------------------
Borrower permit any other Credit Party to, consolidate or merge with or into any
other Person;  provided,  that, so long as no Default or Event of Default exists
               --------   ----
or will result, any wholly owned Subsidiary of Borrower may merge or consolidate
with any other  Person so long as a wholly owned  Subsidiary  of Borrower is the
surviving Person.

     Section  10.5.  ASSET  DISPOSITIONS.  Borrower  will not, nor will Borrower
                     -------------------
permit any other Credit Party to, sell,  lease,  transfer,  abandon or otherwise
dispose of any asset other than (a) the sale in the ordinary  course of business
of Hydrocarbons produced from Borrower's Mineral Interests, (b) the sale, lease,
transfer,  abandonment,  exchange or other disposition of other assets, provided
that the  aggregate  value (which,  in the case of assets  consisting of Mineral
Interests,  shall be the Recognized  Value of such Mineral  Interests and in the
case of any exchange, shall be the net value or net Recognized Value realized or
resulting  from such  exchange)  of all  assets  sold,  leased,  transferred  or
disposed  of  pursuant  to  this  clause  (b) in any  period  between  Scheduled
Redeterminations  shall not exceed five percent (5%) of the Conforming Borrowing
Base then in effect (for  purposes  of this clause (b) the Closing  Date will be
deemed to be a Scheduled  Redetermination),  and (c) the sale, lease,  transfer,
abandonment or disposition of Unproved Reserves. In no event will Borrower sell,
transfer or dispose of any Equity in any  Subsidiary  of  Borrower  nor will any
Credit  Party issue or sell any Equity or any option,  warrant or other right to
acquire such Equity or security convertible into such Equity to any Person other
than the Credit  Party which is the direct  parent of such issuer on the Closing
Date.

     Section 10.6.  AMENDMENTS TO ORGANIZATIONAL  DOCUMENTS.  Borrower will not,
                    ---------------------------------------
nor will  Borrower  permit any other  Credit  Party to, enter into or permit any
modification  or amendment of, or waive any material  right or obligation of any
Person under, its certificate or articles of incorporation,  bylaws, partnership
agreement,  regulations or other organizational documents other than amendments,
modifications and waivers which will not, individually or in the aggregate, have
a Material Adverse Effect.

     Section 10.7. USE OF PROCEEDS.  The proceeds of Borrowings will not be used
                   ---------------
for any purpose other than (a) working capital,  (b) to finance the acquisition,
exploration  and  development of Mineral  Interests,  (c) for general  corporate
purposes,  and (d) to refinance the obligations  outstanding  under the Existing
Credit Agreement. None of such proceeds (including, without limitation, proceeds
of Letters of Credit issued hereunder) will be used, directly or indirectly, for
the purpose,  whether  immediate,  incidental  or  ultimate,  of  purchasing  or
carrying any Margin  Stock,  and none of such proceeds will be used in violation
of applicable  Law  (including,  without  limitation,  the Margin  Regulations).
Letters of Credit  will be issued  hereunder  only for the  purpose of  securing
bids,  tenders,  bonds,  contracts  and other  obligations  entered  into in the
ordinary  course of Borrower's  business.  Without  limiting the  foregoing,  no
Letters of Credit  will be issued  hereunder  for the  purpose  of or  providing
credit  enhancement  with  respect to any Debt or equity  security of any Credit
Party or to secure any Credit Party's

                                     10-52

<PAGE>

obligations  with respect to Hedge  Transactions  other than Hedge  Transactions
with a Bank or an Affiliate of such Bank.

     Section 10.8. INVESTMENTS.  Borrower will not, nor will Borrower permit any
                   -----------
other Credit Party to,  directly or  indirectly,  make or have  outstanding  any
Investment other than Permitted Investments.

     Section 10.9.  TRANSACTIONS  WITH  AFFILIATES.  Borrower will not, nor will
                    ------------------------------
Borrower  permit any other Credit Party to,  engage in any  transaction  with an
Affiliate  unless such  transaction  is as  favorable  to such party as could be
obtained  in  an  arm's  length  transaction  with  an  unaffiliated  Person  in
accordance with prevailing industry customs and practices.

     Section 10.10. ERISA. Except in such instances where an omission or failure
                    -----
would not have a Material  Adverse Effect,  Borrower will not, nor will Borrower
permit any other  Credit Party to (a) take any action or fail to take any action
which would result in a violation of ERISA, the Code or other Laws applicable to
the Plans  maintained or  contributed  to by it or any ERISA  Affiliate,  or (b)
modify the term of, or the  funding  obligations  or  contribution  requirements
under any existing Plan,  establish a new Plan, or become obligated or incur any
liability  under a Plan that is not  maintained or contributed to by Borrower or
any ERISA Affiliate as of the Closing Date.

     Section  10.11.  HEDGE  TRANSACTIONS.  Borrower will not, nor will Borrower
                      -------------------
permit any other Credit Party to, enter into any Hedge  Transactions which would
cause the amount of Hydrocarbons  which are the subject of Hedge Transactions in
existence  at such  time to  exceed  eighty  five  percent  (85%) of  Borrower's
anticipated  production from Proved Producing  Mineral Interests during the term
of such existing Hedge  Transactions;  provided,  that,  Borrower may enter into
                                       --------   ----
Hedge  Transactions  consisting  solely of a floor  price  (i.e.  floor,  put or
option) so long as the amount of Hydrocarbons  which are the subject of any such
Hedge  Transaction  in  existence  at any such time do not exceed  one-  hundred
percent  (100%)  of  Borrower's   anticipated  production  from  Proved  Mineral
Interests during the term of any such existing Hedge Transaction.

     Section 10.12. FISCAL YEAR. Borrower will not, nor will Borrower permit any
                    -----------
other Credit Party to, change its Fiscal Year.

     Section  10.13.  CHANGE IN BUSINESS.  Borrower  will not, nor will Borrower
                      ------------------
permit  any  other  Credit  Party  to,  engage in any  business  other  than the
businesses engaged in by such parties on the date hereof as described in Section
                                                                         -------
8.13 hereof.
----

     Section 10.14. QUALIFIED PURPOSE.  Borrower will not request or receive any
                    -----------------
Borrowing  hereunder if, after giving effect thereto and the use of the proceeds
thereof,  that portion of the principal  balance of the Revolving  Loan which is
outstanding at such time and was utilized for any purpose other than a Qualified
Purpose  exceeds twenty five percent (25%) of the  Conforming  Borrowing Base in
effect at such time.  Borrower  agrees  that each  Request  for  Borrowing  will
include in  addition to the  information  described  in Section  3.2  hereof,  a
                                                        ------------
certification  from an  Authorized  Officer of  Borrower  as to the  purpose and
utilization  of the proceeds of such  Borrowing.  Additionally,  notwithstanding
anything to the contrary contained in


                                     10-53

<PAGE>

Section 4.2 hereof, all principal payments received by Banks with respect to the
-----------
Revolving  Loan  shall be  applied  first  to that  portion  of the  outstanding
principal  balance  of the  Revolving  Loan  utilized  for  purposes  other than
Qualified  Purposes.  Notwithstanding  the  foregoing,  Borrower  shall  not  be
required to comply with this Section 10.14 at any time that the  Borrowing  Base
                             -------------
is equal to the Conforming Borrowing Base.

                                   ARTICLE XI

                               FINANCIAL COVENANTS
                               -------------------

Borrower  agrees  that  so  long  as any  Bank  has  any  commitment  to lend or
participate in Letter of Credit  Exposure  hereunder or any amount payable under
any Note remains unpaid or any Letter of Credit remains outstanding:

     Section 11.1. CURRENT RATIO OF BORROWER. Borrower will not permit its ratio
                   -------------------------
of Consolidated Current Assets to its Consolidated Current Liabilities as of the
end of any Fiscal Quarter to be less than 1.0 to 1.0.

     Section 11.2. MINIMUM  CONSOLIDATED  TANGIBLE NET WORTH.  Borrower will not
                   -----------------------------------------
permit  its  Consolidated  Tangible  Net  Worth  to be less  than  the  Required
Consolidated Tangible Net Worth on any Quarterly Date.

     Section 11.3.  CONSOLIDATED  EBITDA  TO CONSOLIDATED  NET INTEREST EXPENSE.
                    -----------------------------------------------------------
Borrower will not permit its ratio of Consolidated  EBITDA to  Consolidated  Net
Interest  Expense  to be less than (a) 2.25 to 1.0 for the  periods  of four (4)
consecutive  Fiscal  Quarters  ending on each of December 31, 2000 and March 31,
2001, and (b) 2.50 to 1.0 for any period of four (4) consecutive Fiscal Quarters
ending on or after June 30, 2001.

                                   ARTICLE XII

                                    DEFAULTS
                                    --------

     Section 12.1.  EVENTS OF DEFAULT.  If one or more of the  following  events
                    -----------------
(collectively  "EVENTS OF DEFAULT" and individually an "EVENT OF DEFAULT") shall
                -----------------                       ----------------
have occurred and be continuing:

          (a) Borrower shall fail to pay when due any principal on any Note;

          (b) Borrower  shall fail to pay when due accrued  interest on any Note
or any  fees or any  other  amount  payable  hereunder  and such  failure  shall
continue for a period of three (3) days following the due date;

          (c)  Borrower  shall  fail to  observe  or  perform  any  covenant  or
agreement contained in Section 7.3, Article X or Article XI of this Agreement;
                       -----------  ---------    ----------

          (d) any Credit  Party shall fail to observe or perform any covenant or
agreement contained in this Agreement or the other Loan Papers (other than those
referenced in Section
              -------

                                     10-54

<PAGE>

12.1(a),  Section 12.1(b) and Section 12.1(c)) and such failure  continues for a
-------   ---------------     ---------------
period of thirty  (30) days  after the  earlier  of (i) the date any  Authorized
Officer of any Credit Party acquires knowledge of such failure,  or (ii) written
notice of such  failure  has been  given to any Credit  Party by  Administrative
Agent or any Bank;

          (e) any representation,  warranty,  certification or statement made or
deemed to have  been  made by any  Credit  Party in any  certificate,  financial
statement or other document  delivered pursuant to this Agreement shall prove to
have been incorrect in any material respect when made;

          (f) any Credit  Party shall fail to make any  payment  when due on any
Debt of such Person in a principal  amount equal to or greater than  $500,000 or
any other event or condition  shall occur which (i) results in the  acceleration
of the  maturity of any such Debt,  or (ii)  entitles the holder of such Debt to
accelerate the maturity thereof;

          (g) any  Credit  Party  shall  commence  a  voluntary  case  or  other
proceeding seeking  liquidation,  reorganization or other relief with respect to
itself or its debts under any bankruptcy, insolvency or other similar Law now or
hereafter  in  effect  or  seeking  the  appointment  of  a  trustee,  receiver,
liquidator, custodian or other similar official of it or any substantial part of
its property,  or shall consent to any such relief or to the  appointment  of or
taking  possession  by  any  such  official  in an  involuntary  case  or  other
proceeding  commenced  against  it, or shall make a general  assignment  for the
benefit of  creditors,  or shall fail  generally to pay its debts as they become
due,  or shall take any  corporate,  partnership  or limited  liability  company
action to authorize any of the foregoing;

          (h) an involuntary case or other proceeding shall be commenced against
any Credit  Party  seeking  liquidation,  reorganization  or other  relief  with
respect to it or its debts under any bankruptcy, insolvency or other similar Law
now or hereafter in effect or seeking the  appointment  of a trustee,  receiver,
liquidator, custodian or other similar official of it or any substantial part of
its  property,  and such  involuntary  case or  other  proceeding  shall  remain
undismissed and unstayed for a period of sixty (60) days; or an order for relief
shall be entered  against any Credit Party under the federal  bankruptcy Laws as
now or hereafter in effect;

          (i) one (1) or more final judgments or orders for the payment of money
aggregating in excess of $500,000 shall be rendered against any Credit Party and
such judgment or order shall continue  unsatisfied  and unstayed for thirty (30)
days;

          (j) (i) any event occurs with respect to any Plan or Plans pursuant to
which any Credit  Party  and/or any ERISA  Affiliate  incur a liability  due and
owing at the time of such event, without existing funding therefor,  for benefit
payments  under  such Plan or Plans in excess of  $500,000;  or (ii) any  Credit
Party, any ERISA Affiliate,  or any other  "party-in-interest"  or "disqualified
person,"  as such  terms are  defined  in  section  3(14) of ERISA  and  section
4975(e)(2)  of the Code,  shall engage in  transactions  which in the  aggregate
results  in a direct or  indirect  liability  to any  Credit  Party or any ERISA
Affiliate  in excess of  $500,000  under  section 409 or 502 of ERISA or section
4975 of the Code which either (A) results in a Lien on any Credit Party's assets
which is not a Permitted Encumbrance, or (B) continues unsatisfied for a


                                     10-55

<PAGE>

period of thirty  (30) days after any  Authorized  Officer  of any Credit  Party
first acquires knowledge of such liability;

          (k) a Change of Control shall occur; or

          (l) this  Agreement  or any other Loan Paper shall cease to be in full
force  and  effect  or  shall be  declared  null  and  void or the  validity  or
enforceability  thereof shall be contested or challenged by any Credit Party, or
any Credit  Party shall deny that it has any  further  liability  or  obligation
under any of the Loan  Papers,  or any Lien created by the Loan Papers shall for
any reason (other than the release  thereof in accordance  with the Loan Papers)
cease to be a valid,  first  priority,  perfected  Lien  upon any of the  Proved
Mineral Interests purported to be covered thereby;

then, and in every such event,  Administrative  Agent shall without presentment,
notice or demand (unless expressly  provided for herein) of any kind (including,
without limitation, notice of intention to accelerate and acceleration),  all of
which are hereby  waived,  (a) if requested  by Required  Banks,  terminate  the
Commitments and they shall thereupon terminate, and (b) if requested by Required
Banks, take such other actions as may be permitted by the Loan Papers including,
declaring  the Notes  (together  with accrued  interest  thereon) to be, and the
Notes shall thereupon become, immediately due and payable; provided that, in the
                                                           -------- ----
case of any of the Events of  Default  specified  in Section  12.1(g) or Section
                                                     ----------------    -------
12.1(h),   without  any  notice  to  any  Credit  Party  or  any  other  act  by
-------
Administrative Agent or Banks, the Commitments shall thereupon terminate and the
Notes (together with accrued interest thereon) shall become  immediately due and
payable.

                                  ARTICLE XIII

                                     AGENTS
                                     ------

     Section  13.1.  APPOINTMENT,  POWERS,  AND  IMMUNITIES.  Each  Bank  hereby
                     --------------------------------------
irrevocably  appoints and  authorizes  each Agent to act as its agent under this
Agreement  and the other Loan  Papers  with such  powers and  discretion  as are
specifically delegated to each such Agent by the terms of this Agreement and the
other Loan Papers,  together with such other powers as are reasonably incidental
thereto.  No Agent (which term as used in this  sentence and in Section 13.5 and
                                                                ------------
the first  sentence of Section 13.6 hereof shall  include their  affiliates  and
                       ------------
their own and their affiliates' officers, directors, employees, and agents): (a)
shall have any duties or  responsibilities  except those  expressly set forth in
this  Agreement and no Agent shall be a trustee or fiduciary  for any Bank;  (b)
shall be responsible  to Banks for any recital,  statement,  representation,  or
warranty  (whether written or oral) made in or in connection with any Loan Paper
or any certificate or other document referred to or provided for in, or received
by any of them under, any Loan Paper, or for the value, validity, effectiveness,
genuineness,  enforceability,  or  sufficiency  of any Loan Paper,  or any other
document  referred to or  provided  for therein or for any failure by any Credit
Party or any other  Person to perform  any of its  obligations  thereunder;  (c)
shall be responsible for or have any duty to ascertain,  inquire into, or verify
the performance or observance of any covenants or agreements by any Credit Party
or the  satisfaction of any condition or to inspect the property  (including the
books  and  records)  of  any  Credit  Party  or any of  their  Subsidiaries  or
affiliates;  (d) shall be required to  initiate  or conduct  any  litigation  or
collection proceedings


                                     10-56

<PAGE>

under any Loan  Paper;  and (e) shall be  responsible  for any  action  taken or
omitted to be taken by it under or in connection with any Loan Paper, except for
its own gross negligence or willful misconduct. Each Agent may employ agents and
attorneys-in-fact  and shall not be responsible for the negligence or misconduct
of any such agents or  attorneys-in-fact  selected by it with  reasonable  care.
Banks  identified as Co-Agents  under this  Agreement  shall not have any right,
power,  obligation,  liability,  responsibility  or duty under this Agreement in
such capacity. Each Bank acknowledges that it has not relied, and will not rely,
on any Bank identified as a Co-Agent in deciding to enter into this Agreement or
in taking or not taking action hereunder.

     Section 13.2. RELIANCE BY AGENTS. Each Agent shall be entitled to rely upon
                   ------------------
any  certification,   notice,   instrument,   writing,  or  other  communication
(including,  without limitation,  any thereof by telephone or telecopy) believed
by it to be genuine and correct and to have been  signed,  sent or made by or on
behalf of the proper Person or Persons,  and upon advice and statements of legal
counsel (including counsel for any Credit Party),  independent accountants,  and
other  experts  selected  by any such  Agent.  Each Agent may deem and treat the
payee of any Note as the holder thereof for all purposes hereof unless and until
Administrative Agent receives and accepts an Assignment and Acceptance Agreement
executed  in  accordance  with  Section  15.10  hereof.  As to any  matters  not
                                --------------
expressly  provided  for by this  Agreement,  no  Agents  shall 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 Required  Banks,  and such  instructions
shall be binding on Banks;  provided,  however, that, no Agent shall be required
                            --------   -------  ----
to take any action  that  exposes  such Agent to personal  liability  or that is
contrary  to any Loan  Paper  or  applicable  Law or  unless  it shall  first be
indemnified  to its  satisfaction  by Banks  against any and all  liability  and
expense which may be incurred by it by reason of taking any such action.

     Section  13.3.  DEFAULTS.  No Agent  shall be deemed to have  knowledge  or
                     --------
notice of the  occurrence of a Default or Event of Default unless such Agent has
received written notice from a Bank or Borrower specifying such Default or Event
of Default and stating that such notice is a "Notice of  Default".  In the event
that Administrative  Agent receives such a notice of the occurrence of a Default
or Event of Default,  Administrative  Agent shall give prompt notice  thereof to
Banks.  Administrative  Agent shall  (subject to Section  13.2 hereof) take such
                                                 -------------
action with respect to such Default or Event of Default as shall  reasonably  be
directed by Required Banks; provided that, unless and until Administrative Agent
                            -------- ----
shall have received such directions,  Administrative Agent may (but shall not be
obligated to) take such action, or refrain from taking such action, with respect
to such  Default  or Event of Default  as it shall  deem  advisable  in the best
interest of Banks.

     Section  13.4.  RIGHTS AS BANK.  With  respect  to its  Commitment  and the
                     --------------
portion of the  Revolving  Loan made by it, Bank of America  (and any  successor
acting as  Administrative  Agent) in its capacity as a Bank hereunder shall have
the same rights and powers hereunder as any other Bank and may exercise the same
as though it were not acting as  Administrative  Agent,  and the term  "Bank" or
"Banks" shall, unless the context otherwise  indicates,  include  Administrative
Agent in its individual  capacity.  Bank of America (and any successor acting as
Administrative Agent), each other Agent and their affiliates may (without having
to account  therefor  to any Bank)  accept  deposits  from,  lend money to, make
investments  in,  provide  services  to,  and  generally  engage  in any kind of
lending, trust, or other business with Borrower


                                     10-57

<PAGE>

or any other Credit Party or their affiliates as if it were not acting as Agent,
and Bank of America (and any successor  acting as  Administrative  Agent),  each
other Agent and their  affiliates may accept fees and other  consideration  from
Borrower or any other  Credit Party or any of their  affiliates  for services in
connection  with this  Agreement or otherwise  without having to account for the
same to Banks.

     Section 13.5. INDEMNIFICATION.  Banks agree to indemnify each Agent (to the
                   ---------------
extent not reimbursed by Borrower or any other Credit Party hereof,  but without
limiting  the  obligations  of any  Credit  Party to so  reimburse)  ratably  in
accordance  with  their  respective  Commitments,  for any and all  liabilities,
obligations,  losses,  damages,  penalties,  actions,  judgments,  suits, costs,
expenses  (including  attorneys'  fees), or disbursements of any kind and nature
whatsoever  that may be imposed on,  incurred  by or  asserted  against any such
Agent  (including by any Bank) in any way relating to or arising out of any Loan
Paper or the transactions contemplated thereby or any action taken or omitted by
any Agent under any Loan Paper (INCLUDING ANY OF THE FOREGOING  ARISING FROM THE
NEGLIGENCE  OF ANY AGENT);  provided that no Bank shall be liable for any of the
                            -------- ----
foregoing  to the  extent  they  arise  from the  gross  negligence  or  willful
misconduct of the Person to be indemnified. Without limitation of the foregoing,
each Bank agrees to reimburse  each Agent  promptly  upon demand for its ratable
share of any costs or expenses  payable by Borrower  under  Section 15.3, to the
                                                            ------------
extent  that any such  Agent  is not  promptly  reimbursed  for such  costs  and
expenses by  Borrower.  The  agreements  contained  in this  Section  13.5 shall
                                                             -------------
survive  payment  in full of the  portion  of the  Revolving  Loan and all other
amounts payable under this Agreement.

     Section 13.6.  NON-RELIANCE ON AGENT AND OTHER BANKS. Each Bank agrees that
                    -------------------------------------
it has,  independently  and without reliance on any Agent or any Bank, and based
on such  documents and  information as it has deemed  appropriate,  made its own
credit  analysis of each Credit Party and decision to enter into this  Agreement
and that it will, independently and without reliance upon any Agent or any Bank,
and based on such documents and information as it shall deem  appropriate at the
time,  continue to make its own analysis  and  decisions in taking or not taking
action under the Loan Papers.  Except for notices,  reports, and other documents
and information  expressly  required to be furnished to Banks by  Administrative
Agent hereunder,  no Agent shall have any duty or  responsibility to provide any
Bank with any credit or other  information  concerning  the  affairs,  financial
condition,  or business of any Credit  Party or their  affiliates  that may come
into the possession of any such Agent or any of their affiliates.

     Section 13.7.  RESIGNATION  OF AGENTS.  Any Agent may resign at any time by
                    ----------------------
giving notice thereof to Banks and Borrower. Upon any such resignation, Required
Banks shall have the right to appoint a successor Agent, which shall be approved
by Borrower,  such approval to not be  unreasonably  withheld;  provided,  that,
                                                                --------   ----
Borrower  shall not have the right to  approve  any  successor  Agent  appointed
during the continuance of any Default.  If no successor Agent shall have been so
appointed by Required  Banks and shall have  accepted  such  appointment  within
thirty (30) days after the  retiring  Agent's  giving of notice of  resignation,
then the retiring Agent may, on behalf of Banks, appoint a successor Agent which
shall be a  commercial  bank  organized  under the Laws of the United  States of
America having combined  capital and surplus of at least  $100,000,000 and which
shall be approved by Borrower,  such approval to not be  unreasonably  withheld;
provided, that, Borrower shall not have the right to approve any successor Agent
--------  ----
appointed  during the  continuance  of any Default.  Upon the  acceptance of any
appointment as

                                     10-58

<PAGE>

Agent  hereunder by a successor  (and approval of such  successor by Borrower to
the extent  Borrower's  approval is required),  such successor  shall  thereupon
succeed  to  and  become  vested  with  all  the  rights,  powers,   discretion,
privileges,  and duties of the retiring  Agent,  and the retiring Agent shall be
discharged from its duties and obligations hereunder. After any retiring Agent's
resignation  hereunder as an Agent,  the  provisions  of this Article XIII shall
                                                              ------------
continue in effect for its benefit in respect of any actions taken or omitted to
be taken by it while it was acting as an Agent.


                                   ARTICLE XIV

                             CHANGE IN CIRCUMSTANCES
                             -----------------------


     Section 14.1. INCREASED COST AND REDUCED RETURN.
                   ---------------------------------

          (a) If, after the date hereof,  the  adoption of any  applicable  law,
rule, or regulation,  or any change in any applicable  law, rule, or regulation,
or  any  change  in  the   interpretation  or  administration   thereof  by  any
Governmental  Authority,  central bank, or  comparable  agency  charged with the
interpretation  or  administration  thereof,  or  compliance by any Bank (or its
Applicable  Lending Office) with any request or directive (whether or not having
the  force  of  law)  of any  such  Governmental  Authority,  central  bank,  or
comparable agency:

               (i) shall subject such Bank (or its Applicable Lending Office) to
               any tax,  duty,  or other charge with  respect to any  Eurodollar
               Loans,  its Note, or its obligation to make Eurodollar  Loans, or
               change the basis of taxation of any amounts  payable to such Bank
               (or its  Applicable  Lending  Office) under this Agreement or its
               Note in respect of any Eurodollar Loans (other than taxes imposed
               on the overall net income of such Bank or such Applicable Lending
               Office);

               (ii)  shall  impose,  modify,  or deem  applicable  any  reserve,
               special   deposit,   assessment,   compulsory  loan,  or  similar
               requirement (other than the Reserve  Requirement  utilized in the
               determination  of the Adjusted  Eurodollar  Rate) relating to any
               extensions  of credit or other assets of, or any deposits with or
               other liabilities or commitments of, such Bank (or its Applicable
               Lending Office), including the Commitment of such Bank hereunder;
               or

               (iii)  shall  impose  on such  Bank  (or its  Applicable  Lending
               Office) or on the  London  interbank  market any other  condition
               affecting this Agreement or its Note or any of such extensions of
               credit or liabilities or commitments;

and the result of any of the  foregoing is to increase the cost to such Bank (or
its  Applicable  Lending  Office) of making,  Converting  into,  Continuing,  or
maintaining any Eurodollar  Loans or to reduce any sum received or receivable by
such Bank (or its  Applicable  Lending  Office) under this Agreement or its Note
with respect to any Eurodollar Loans, then the Borrower shall pay to

                                     10-59

<PAGE>


such Bank on demand such amount or amounts as will compensate such Bank for such
increased cost or reduction. If any Bank requests compensation by Borrower under
this Section  14.1(a),  the Borrower may, by notice to such Bank (with a copy to
Administrative  Agent),  suspend the obligation of such Bank to make or Continue
Eurodollar  Loans or to Convert  all or part of the Base Rate Loan owing to such
Bank into  Eurodollar  Loans,  until the event or condition  giving rise to such
request  ceases to be in effect (in which case the  provisions  of Section  14.4
shall be applicable);  provided, that such suspension shall not affect the right
of such Bank to receive the compensation so requested.

          (b) If, after the date hereof, any Bank shall have determined that the
adoption of any applicable law, rule, or regulation  regarding  capital adequacy
or any change therein or in the interpretation or administration  thereof by any
Governmental  Authority,  central bank, or  comparable  agency  charged with the
interpretation or administration  thereof, or any request or directive regarding
capital  adequacy  (whether  or not  having  the  force  of  law)  of  any  such
Governmental  Authority,  central bank, or comparable  agency, has or would have
the  effect of  reducing  the rate of return on the  capital of such Bank or any
corporation  controlling  such Bank as a consequence of such Bank's  obligations
hereunder to a level below that which such Bank or such  corporation  could have
achieved but for such  adoption,  change,  request,  or  directive  (taking into
consideration its policies with respect to capital adequacy), then, from time to
time upon  demand,  Borrower  shall pay to such Bank such  additional  amount or
amounts as will compensate such Bank for such reduction.

          (c) Each Bank shall promptly notify Borrower and Administrative  Agent
of any event of which it has knowledge,  occurring after the date hereof,  which
will  entitle such Bank to  compensation  pursuant to this Section 14.1 and will
                                                           ------------
designate a different  Applicable  Lending Office if such designation will avoid
the need for,  or reduce the amount of, such  compensation  and will not, in the
judgment of such Bank,  be otherwise  disadvantageous  to it. Any Bank  claiming
compensation   under  this   Section   14.1  shall   furnish  to  Borrower   and
                             --------------
Administrative  Agent a statement setting forth the additional amount or amounts
to be paid to it hereunder  which shall be conclusive in the absence of manifest
error. In determining  such amount,  such Bank may use any reasonable  averaging
and attribution methods.

     Section 14.2.  LIMITATION ON TYPE OF LOANS. If on or prior to the first day
                    ---------------------------
of any Interest Period for any Eurodollar Loan:

          (a)  Administrative  Agent determines  (which  determination  shall be
conclusive)  that by reason of  circumstances  affecting  the  relevant  market,
adequate and reasonable  means do not exist for ascertaining the Eurodollar Rate
for such Interest Period; or

          (b) Required Banks determine (which determination shall be conclusive)
and notify  Administrative  Agent  that the  Adjusted  Eurodollar  Rate will not
adequately and fairly reflect the cost to Banks of funding  Eurodollar Loans for
such Interest Period;

then  Administrative  Agent shall give Borrower prompt notice thereof specifying
the relevant Type of Revolving Loans and the relevant amounts or periods, and so
long as such condition remains in effect,  Banks shall be under no obligation to
make additional  Revolving Loans of such Type,  Continue Revolving Loans of such
Type, or to Convert Revolving Loans of any other


                                     10-60

<PAGE>

Type into Revolving  Loans of such Type, and Borrower  shall, on the last day(s)
of the then current  Interest  Period(s) for the outstanding  Revolving Loans of
the affected Type,  either prepay such Revolving Loans or Convert such Revolving
Loans into another Type of Revolving  Loan in accordance  with the terms of this
Agreement.

     Section  14.3.  ILLEGALITY.  Notwithstanding  any other  provision  of this
                     ----------
Agreement,  in the event that it becomes unlawful for any Bank or its Applicable
Lending Office to make, maintain, or fund Eurodollar Loans hereunder,  then such
Bank shall promptly notify Borrower  thereof and such Bank's  obligation to make
or Continue  Eurodollar Loans and to Convert other Types of Revolving Loans into
Eurodollar Loans shall be suspended until such time as such Bank may again make,
maintain,  and fund  Eurodollar  Loans (in which case the  provisions of Section
                                                                         -------
14.4 shall be applicable).
----

     Section 14.4. TREATMENT OF AFFECTED LOANS. If the obligation of any Bank to
                   ---------------------------
make particular  Eurodollar Loans or to Continue  Revolving Loans, or to Convert
Revolving  Loans of another Type into Revolving Loans of a particular Type shall
be suspended pursuant to Section 14.1 or Section 14.3 hereof (Revolving Loans of
                         ------------    ------------
such Type being herein called "AFFECTED LOANS" and such Type being herein called
                               --------------
the  "AFFECTED  TYPE"),  such  Bank's  Affected  Loans  shall  be  automatically
      --------------
Converted  into  the  Base  Rate  Loan on the last  day(s)  of the then  current
Interest Period(s) for Affected Loans (or, in the case of a Conversion  required
by  Section  14.3  hereof,  on such  earlier  date as such Bank may  specify  to
    -------------
Borrower with a copy to  Administrative  Agent) and,  unless and until such Bank
gives notice as provided below that the circumstances  specified in Section 14.1
                                                                    ------------
or Section 14.3 hereof that gave rise to such Conversion no longer exist:
   ------------

          (a) to the  extent  that  such  Bank's  Affected  Loans  have  been so
Converted,  all payments and  prepayments of principal  that would  otherwise be
applied to such Bank's  Affected Loans shall be applied instead to the Base Rate
Loan; and

          (b) all Revolving  Loans that would  otherwise be made or Continued by
such Bank as  Revolving  Loans of the  Affected  Type shall be made or Continued
instead as part of the Base Rate Loan, and all Revolving Loans of such Bank that
would  otherwise be Converted into Revolving Loans of the Affected Type shall be
Converted instead into (or shall remain) as part of the Base Rate Loan.

If such Bank gives notice to Borrower (with a copy to Administrative Agent) that
the  circumstances  specified  in Section  14.1 or Section 14.3 hereof that gave
                                  -------------    ------------
rise to the  Conversion of such Bank's  Affected  Loans pursuant to this Section
                                                                         -------
14.4  no  longer  exist  (which  such  Bank  agrees  to do  promptly  upon  such
----
circumstances  ceasing to exist) at a time when Revolving  Loans of the Affected
Type made by other Banks are  outstanding,  such Bank's portion of the Base Rate
Loan  shall  be  automatically  Converted,  on the  first  day(s)  of  the  next
succeeding  Interest  Period(s)  for  such  outstanding  Revolving  Loans of the
Affected Type, to the extent necessary so that, after giving effect thereto, all
Revolving  Loans held by Banks holding  Revolving Loans of the Affected Type and
by such Bank are held pro rata (as to  principal  amounts,  Types  and  Interest
Periods) in accordance with their respective Commitments.

                                     10-61

<PAGE>


     Section 14.5.  COMPENSATION.  Upon the request of any Bank,  Borrower shall
                    ------------
pay to such  Bank  such  amount  or  amounts  as  shall  be  sufficient  (in the
reasonable opinion of such Bank) to compensate it for any loss, cost, or expense
(including loss of anticipated profits) incurred by it as a result of:

          (a) any payment,  prepayment,  or Conversion of a Eurodollar  Loan for
any reason  (including,  without  limitation,  the acceleration of the Revolving
Loan) on a date other than the last day of the Interest Period for such Loan; or

          (b) any failure by the  Borrower  for any reason  (including,  without
limitation,  the failure of any condition  precedent specified in Article VII to
                                                                  -----------
be satisfied) to borrow,  Convert,  Continue, or prepay a Eurodollar Loan on the
date for such Borrowing,  Conversion,  Continuation,  or prepayment specified in
the relevant  Request for Borrowing,  Notice of Continuation  or Conversion,  or
other notice of Borrowing,  prepayment,  Continuation,  or Conversion under this
Agreement.

     Section 14.6.  TAXES.
                    -----

          (a) Any and all payments by Borrower to or for the account of any Bank
or  Administrative  Agent  hereunder or under any other Loan Paper shall be made
free and clear of and without deduction for any and all present or future Taxes,
duties,  levies,  imposts,   deductions,   charges  or  withholdings,   and  all
liabilities  with  respect  thereto,  excluding,  in the  case of each  Bank and
                                      ---------
Administrative  Agent,  Taxes imposed on its income, and franchise Taxes imposed
on it, by the jurisdiction  under the Laws of which such Bank (or its Applicable
Lending Office) or Administrative Agent (as the case may be) is organized or any
political  subdivision  thereof (all such non-excluded  Taxes,  duties,  levies,
imposts, deductions,  charges,  withholdings,  and liabilities being hereinafter
referred to in this Section 14.6 as "NON-EXCLUDED  TAXES"). If Borrower shall be
                    ------------     -------------------
required by Law to deduct any  Non-Excluded  Taxes from or in respect of any sum
payable  under  this   Agreement  or  any  other  Loan  Paper  to  any  Bank  or
Administrative  Agent,  (i) the sum payable  shall be  increased as necessary so
that after making all required deductions  (including  deductions  applicable to
additional  sums payable  under this  Section  14.6 such Bank or  Administrative
                                      -------------
Agent  receives an amount  equal to the sum it would have  received  had no such
deductions been made, (ii) Borrower shall make such  deductions,  (iii) Borrower
shall pay the full amount deducted to the relevant  taxation  authority or other
authority in accordance  with applicable Law, and (iv) Borrower shall furnish to
Administrative  Agent,  at its  address set forth on  Schedule  2.1 hereto,  the
                                                      -------------
original or a certified copy of a receipt evidencing payment thereof.

          (b) In addition,  Borrower agrees to pay any and all present or future
stamp or documentary  Taxes and any other excise or property Taxes or charges or
similar  levies  which arise from any payment  made under this  Agreement or any
other Loan Paper or from the execution or delivery of, or otherwise with respect
to, this  Agreement or any other Loan Paper  (hereinafter  referred to as "OTHER
                                                                           -----
TAXES").
-----

          (c) Borrower  agrees to indemnify each Bank and  Administrative  Agent
for the full amount of Taxes and Other Taxes (including, without limitation, any
Non-Excluded  Taxes or Other Taxes  imposed or asserted by any  jurisdiction  on
amounts payable under this Section 14.6)
                           ------------

                                     10-62

<PAGE>

paid by such Bank or Administrative Agent (as the case may be) and any liability
(including penalties,  interest, and expenses) arising therefrom or with respect
thereto.

          (d) Each Bank organized  under the Laws of a jurisdiction  outside the
United  States,  on or prior to the date of its  execution  and delivery of this
Agreement in the case of each Bank listed on Schedule 2.1 hereto and on or prior
                                             ------------
to the date on which it becomes a Bank in the case of each other Bank,  and from
time to time  thereafter  if requested in writing by Borrower or  Administrative
Agent  (but only so long as such Bank  remains  lawfully  able to do so),  shall
provide Borrower and Administrative Agent with (i) Internal Revenue Service Form
1001 or 4224, as  appropriate,  or any successor form prescribed by the Internal
Revenue  Service,  certifying  that such Bank is entitled  to benefits  under an
income tax treaty to which the United  States is a party which  reduces the rate
of  withholding  tax on  payments  of  interest  or  certifying  that the income
receivable pursuant to this Agreement is effectively  connected with the conduct
of a trade or business in the United States,  (ii) Internal Revenue Service Form
W-8 or W-9, as  appropriate,  or any successor  form  prescribed by the Internal
Revenue Service,  and (iii) any other form or certificate required by any taxing
authority  (including any certificate  required by Sections 871(h) and 881(c) of
the  Internal  Revenue  Code),  certifying  that  such  Bank is  entitled  to an
exemption  from or a reduced rate of tax on payments  pursuant to this Agreement
or any of the other Loan Papers.

          (e) For any period with  respect to which a Bank has failed to provide
Borrower and Administrative  Agent with the appropriate form pursuant to Section
                                                                         -------
14.6(d)  (unless such failure is due to a change in treaty,  law, or  regulation
-------
occurring  subsequent to the date on which a form  originally was required to be
provided),  such Bank shall not be entitled  to  indemnification  under  Section
                                                                         -------
14.6(a) or Section  14.6(b) with respect to  Non-Excluded  Taxes  imposed by the
-------    ----------------
United States; provided,  however, that should a Bank, which is otherwise exempt
               --------   -------
from or  subject  to a  reduced  rate of  withholding  Tax,  become  subject  to
Non-Excluded Taxes because of its failure to deliver a form required  hereunder,
Borrower shall take such steps as such Bank shall  reasonably  request to assist
such Bank to recover such Non-Excluded Taxes.

          (f) If Borrower is  required to pay  additional  amounts to or for the
account of any Bank pursuant to this Section 14.6,  then such Bank will agree to
                                     ------------
use reasonable  efforts to change the  jurisdiction  of its  Applicable  Lending
Office  so as to  eliminate  or reduce  any such  additional  payment  which may
thereafter accrue if such change, in the judgment of such Bank, is not otherwise
disadvantageous to such Bank.

          (g)  Within  thirty  (30)  days  after  the  date  of any  payment  of
Non-Excluded Taxes,  Borrower shall furnish to Administrative Agent the original
or a certified copy of a receipt evidencing such payment.

          (h)  Without  prejudice  to the  survival  of any other  agreement  of
Borrower hereunder, the agreements and obligations of Borrower contained in this
Section 14.6 shall survive the termination of the Commitments and the payment in
------------
full of the Notes.

     Section 14.7. DISCRETION OF BANKS AS TO MANNER OF FUNDING.  Notwithstanding
                   -------------------------------------------
any provisions of this Agreement to the contrary, each Bank shall be entitled to
fund and maintain its funding of all or any part of its Commitment in any manner
it sees fit, it being understood,

                                     10-63

<PAGE>

however,  that for the purposes of this Agreement all  determinations  hereunder
shall be made as if such Bank had actually funded and maintained each Eurodollar
Loan during the Interest Period for such Eurodollar Loan through the purchase of
deposits having a maturity corresponding to the last day of such Interest Period
and  bearing an interest  rate equal to the  Adjusted  Eurodollar  Rate for such
Interest Period.

                                   ARTICLE XV

                                  MISCELLANEOUS
                                  -------------

     Section 15.1. NOTICES.  All notices,  requests and other  communications to
                   -------
any party  hereunder  shall be in  writing  (including  bank wire,  telecopy  or
similar writing) and shall be given, if to Administrative  Agent or any Bank, at
its address or telecopier number set forth on Schedule 2.1 hereto,  and if given
                                              ------------
to Borrower,  at its address or telecopy number set forth on the signature pages
hereof (or in either  case,  at such other  address or  telecopy  number as such
party may  hereafter  specify  for the  purpose  by notice to the other  parties
hereto). Each such notice, request or other communication shall be effective (a)
if given by telecopy,  when such telecopy is transmitted to the telecopy  number
specified  in this Section 15.1 and the  appropriate  answerback  is received or
                   ------------
receipt  is  otherwise  confirmed,  (b) if  given by mail,  three  (3)  Domestic
Business  Days after  deposit in the mails with  first  class  postage  prepaid,
addressed as aforesaid,  or (c) if given by any other means,  when  delivered at
the  address   specified  in  this  Section  15.1;   provided  that  notices  to
                                    -------------    --------  ----
Administrative  Agent  under  Article  III or Article IV shall not be  effective
                              ------------    ----------
until received.

     Section 15.2. NO WAIVERS.  No failure or delay by  Administrative  Agent or
                   ----------
any Bank in exercising any right, power or privilege hereunder or under any Note
or other Loan Paper  shall  operate as a waiver  thereof nor shall any single or
partial  exercise  thereof preclude any other or further exercise thereof or the
exercise of any other right, power or privilege.  The rights and remedies herein
provided  shall be  cumulative  and not  exclusive  of any  rights  or  remedies
provided by Law or in any of the other Loan Papers.

     Section 15.3. EXPENSES; INDEMNIFICATION.
                   -------------------------

          (a) Borrower agrees to pay on demand all reasonable costs and expenses
of each Agent (other than any  Co-Agent)  in  connection  with the  syndication,
preparation, execution, delivery, modification, and amendment of this Agreement,
the other  Loan  Papers,  and the other  documents  to be  delivered  hereunder,
including,  without limitation,  the reasonable fees and expenses of counsel for
Administrative   Agent  with  respect  thereto  and  with  respect  to  advising
Administrative  Agent  as to its  rights  and  responsibilities  under  the Loan
Papers.  Borrower  further  agrees to pay on demand  all costs and  expenses  of
Administrative   Agent  and  Banks,  if  any  (including,   without  limitation,
reasonable  attorneys'  fees and expenses),  in connection  with the enforcement
(whether  through  negotiations,  legal  proceedings,  or otherwise) of the Loan
Papers and the other documents to be delivered hereunder.

          (b) BORROWER AGREES TO INDEMNIFY AND HOLD HARMLESS EACH AGENT AND EACH
BANK AND EACH OF THEIR  AFFILIATES  AND THEIR  RESPECTIVE  OFFICERS,  DIRECTORS,
EMPLOYEES, AGENTS, AND ADVISORS

                                     10-64

<PAGE>

(EACH,  AN  "INDEMNIFIED  PARTY") FROM AND AGAINST ANY AND ALL CLAIMS,  DAMAGES,
             ------------------
LOSSES,  LIABILITIES,   COSTS,  AND  EXPENSES  (INCLUDING,  WITHOUT  LIMITATION,
REASONABLE  ATTORNEYS'  FEES) THAT MAY BE  INCURRED  BY OR  ASSERTED  OR AWARDED
AGAINST ANY INDEMNIFIED PARTY, IN EACH CASE ARISING OUT OF OR IN CONNECTION WITH
OR  BY  REASON  OF  (INCLUDING,  WITHOUT  LIMITATION,  IN  CONNECTION  WITH  ANY
INVESTIGATION, LITIGATION, OR PROCEEDING OR PREPARATION OF DEFENSE IN CONNECTION
THEREWITH) THE LOAN PAPERS, ANY OF THE TRANSACTIONS  CONTEMPLATED  HEREIN OR THE
ACTUAL OR PROPOSED USE OF THE PROCEEDS OF THE REVOLVING  LOAN  (INCLUDING ANY OF
THE FOREGOING ARISING FROM THE NEGLIGENCE OF THE INDEMNIFIED  PARTY),  EXCEPT TO
THE EXTENT SUCH CLAIM, DAMAGE, LOSS,  LIABILITY,  COST, OR EXPENSE IS FOUND IN A
FINAL,  NON-APPEALABLE  JUDGMENT BY A COURT OF  COMPETENT  JURISDICTION  TO HAVE
RESULTED FROM SUCH INDEMNIFIED  PARTY'S GROSS NEGLIGENCE OR WILLFUL  MISCONDUCT.
IN THE CASE OF AN  INVESTIGATION,  LITIGATION  OR OTHER  PROCEEDING TO WHICH THE
INDEMNITY  IN THIS  SECTION  15.3  APPLIES,  SUCH  INDEMNITY  SHALL BE EFFECTIVE
                    -------------
WHETHER OR NOT SUCH INVESTIGATION, LITIGATION OR PROCEEDING IS BROUGHT BY CREDIT
PARTIES, ITS DIRECTORS, SHAREHOLDERS OR CREDITORS OR AN INDEMNIFIED PARTY OR ANY
OTHER PERSON OR ANY  INDEMNIFIED  PARTY IS OTHERWISE A PARTY THERETO AND WHETHER
OR NOT THE TRANSACTIONS CONTEMPLATED HEREBY ARE CONSUMMATED. BORROWER AGREES NOT
TO ASSERT ANY CLAIM AGAINST ANY AGENT, ANY BANK, ANY OF THEIR AFFILIATES, OR ANY
OF THEIR RESPECTIVE  DIRECTORS,  OFFICERS,  EMPLOYEES,  ATTORNEYS,  AGENTS,  AND
ADVISERS, ON ANY THEORY OF LIABILITY, FOR SPECIAL, INDIRECT,  CONSEQUENTIAL,  OR
PUNITIVE DAMAGES ARISING OUT OF OR OTHERWISE RELATING TO THE LOAN PAPERS, ANY OF
THE  TRANSACTIONS  CONTEMPLATED  HEREIN  OR THE  ACTUAL OR  PROPOSED  USE OF THE
PROCEEDS OF THE REVOLVING LOAN.

          (c)  Without  prejudice  to the  survival  of any other  agreement  of
Borrower hereunder, the agreements and obligations of Borrower contained in this
Section  15.3 shall  survive the payment in full of the  Revolving  Loan and all
-------------
other amounts payable under this Agreement.

     Section 15.4. RIGHT OF SET-OFF; ADJUSTMENTS.
                   -----------------------------

          (a) Upon the  occurrence  and during the  continuance  of any Event of
Default, each Bank (and each of its Affiliates) 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 such Bank
(or any of its  Affiliates)  to or for the  credit or the  account of any Credit
Party against any and all of the Obligations,  irrespective of whether such Bank
shall  have  made any  demand  under  this  Agreement  or Note  held by such and
although such obligations may be unmatured.  Each Bank agrees promptly to notify
the affected  Credit Party after any such set-off and  application  made by such
Bank; provided, however, that the failure to give such notice shall not
      --------  -------

                                     10-65

<PAGE>

affect the  validity of such  set-off and  application.  The rights of each Bank
under this Section 15.4 are in addition to other rights and remedies (including,
           ------------
without limitation, other rights of set-off) that such Bank may have.

          (b) If any Bank (a  "BENEFITTED  BANK")  shall at any time receive any
                               ----------------
payment  of all or part of the  amounts  owing to it, or  interest  thereon,  or
receive any collateral in respect thereof (whether voluntarily or involuntarily,
by set-off,  or otherwise),  in a greater proportion than any such payment to or
collateral  received by any other Bank,  if any, in respect of such other Bank's
amounts owing to it, or interest  thereon,  such  benefitted Bank shall purchase
for cash from the other Banks a  participating  interest in such portion of each
such other Bank's  amounts  owing to it, or shall  provide such other Banks with
the  benefits  of any such  collateral,  or the  proceeds  thereof,  as shall be
necessary to cause such  benefitted Bank to share the excess payment or benefits
of such collateral or proceeds ratably with each other Bank; provided,  however,
                                                             --------   -------
that if all or any  portion of such excess  payment or  benefits  is  thereafter
recovered from such benefitted  Bank, such purchase shall be rescinded,  and the
purchase  price and  benefits  returned,  to the  extent of such  recovery,  but
without  interest.  Borrower  agrees that any Bank so purchasing a participation
from a Bank pursuant to this Section 15.4 may, to the fullest  extent  permitted
                             ------------
by Law,  exercise all of its rights of payment  (including the right of set-off)
with  respect to such  participation  as fully as if such Person were the direct
creditor of Borrower in the amount of such participation.

     Section 15.5. AMENDMENTS AND WAIVERS. Any provision of this Agreement,  the
                   ----------------------
Notes or any other Loan  Paper may be  amended  or waived if, but only if,  such
amendment or waiver is in writing and is signed by Borrower  and Required  Banks
(and, if the rights or duties of any Agent are affected thereby, by such Agent);
provided that no such amendment or waiver shall, unless signed by all Banks, (a)
-------- ----
increase  the  Commitment  of any Bank,  (b) reduce the  principal of or rate of
interest on any Revolving Loan or any fees or other amounts payable hereunder or
for  termination  of any  Commitment,  (c)  change the  percentage  of the Total
Commitment,  or the number of Banks which shall be required  for Banks or any of
them to take any action under this  Section 15.5 or any other  provision of this
                                    ------------
Agreement, (d) extend the due date for, or forgive any principal, interest, fees
or reimbursement  obligations due hereunder,  (e) release any material guarantor
or other material party liable for all or any part of the Obligations or release
any material  part of the  collateral  for the  Obligations  or any part thereof
other than releases required pursuant to sales of collateral which are expressly
permitted by Section 10.5 hereof,  or (f) amend or modify any of the  provisions
             ------------
of Article V hereof or the definitions of any terms defined therein.
   ---------

     Section 15.6. SURVIVAL. All representations,  warranties and covenants made
                   --------
by any Credit Party herein or in any certificate or other  instrument  delivered
by it or in its behalf  under the Loan Papers shall be  considered  to have been
relied upon by Banks and shall survive the delivery to Banks of such Loan Papers
or the extension of the Revolving Loan (or any part thereof),  regardless of any
investigation  made by or on behalf of Banks. The indemnity  provided in Section
                                                                         -------
15.3(b)  herein shall  survive the  repayment of all credit  advances  hereunder
-------
and/or the  discharge or release of any Lien  granted  hereunder or in any other
Loan Paper, contract or agreement between Borrower or any other Credit Party and
any Agent or any Bank.


                                     10-66

<PAGE>

     Section 15.7. LIMITATION ON INTEREST. Regardless of any provision contained
                   ----------------------
in the Loan Papers, Banks shall never be entitled to receive, collect, or apply,
as interest on the Revolving  Loan,  any amount in excess of the Maximum  Lawful
Rate, and in the event any Bank ever  receives,  collects or applies as interest
any such excess,  such amount which would be deemed excessive  interest shall be
deemed a partial  prepayment of principal and treated  hereunder as such; and if
the Revolving Loan is paid in full, any remaining  excess shall promptly be paid
to Borrower.  In  determining  whether or not the interest paid or payable under
any specific  contingency  exceeds the Maximum  Lawful Rate,  Borrower and Banks
shall,  to the extent  permitted  under  applicable  Law, (a)  characterize  any
nonprincipal payment as an expense, fee or premium rather than as interest,  (b)
exclude voluntary prepayments and the effects thereof and (c) amortize, prorate,
allocate and spread, in equal parts, the total amount of the interest throughout
the entire  contemplated  term of the Notes,  so that the  interest  rate is the
Maximum Lawful Rate throughout the entire term of the Notes; provided,  however,
                                                             --------   -------
that if the unpaid principal balance thereof is paid and performed in full prior
to the end of the full contemplated  term thereof,  and if the interest received
for the actual  period of  existence  thereof  exceeds the Maximum  Lawful Rate,
Banks  shall  refund to  Borrower  the amount of such excess and, in such event,
Banks shall not be subject to any penalties provided by any Laws for contracting
for, charging,  taking, reserving or receiving interest in excess of the Maximum
Lawful Rate.

     Section 15.8.  INVALID  PROVISIONS.  If any provision of the Loan Papers is
                    -------------------
held to be  illegal,  invalid,  or  unenforceable  under  present or future Laws
effective during the term thereof, such provision shall be fully severable,  the
Loan Papers shall be  construed  and enforced as if such  illegal,  invalid,  or
unenforceable  provision had never  comprised a part thereof,  and the remaining
provisions  thereof  shall  remain  in full  force and  effect  and shall not be
affected by the illegal, invalid, or unenforceable provision or by its severance
therefrom.  Furthermore,  in lieu of such  illegal,  invalid,  or  unenforceable
provision  there  shall be added  automatically  as a part of the Loan  Papers a
provision  as  similar  in  terms to such  illegal,  invalid,  or  unenforceable
provision as may be possible and be legal, valid and enforceable.

     Section 15.9.  WAIVER OF CONSUMER  CREDIT LAWS.  Pursuant to Chapter 346 of
                    -------------------------------
the Texas Finance Code, as amended,  Borrower agrees that such Chapter 346 shall
not govern or in any manner apply to the Revolving Loan.

     Section 15.10. ASSIGNMENTS AND PARTICIPATIONS.
                    ------------------------------

          (a) Each Bank may assign to one or more  Eligible  Assignees  all or a
portion of its rights and obligations under this Agreement  (including,  without
limitation,  all or a portion of its interest in the Revolving  Loan,  its Note,
and its Commitment); provided, however, that
                     --------  -------  ----

               (i) each such assignment shall be to an Eligible Assignee;

               (ii) except in the case of an  assignment  to another  Bank or an
               assignment of all of a Bank's rights and  obligations  under this
               Agreement,  any such partial  assignment shall be in an amount at
               least equal to $5,000,000 or an integral  multiple of $100,000 in
               excess thereof;


                                     10-67

<PAGE>


               (iii) each such assignment by a Bank shall be of a constant,  and
               not  varying,  percentage  of all of its rights  and  obligations
               under this Agreement and its Note; and

               (iv) the parties to such assignment  shall execute and deliver to
               Administrative   Agent  for  its  acceptance  an  Assignment  and
               Acceptance  Agreement (herein so called) in the form of Exhibit K
                                                                       ---------
               attached  hereto,   together  with  any  Notes  subject  to  such
               assignment  and a processing fee to be paid by the assigning Bank
               of $3,500.

Upon  execution,  delivery,  and  acceptance of such  Assignment  and Acceptance
Agreement, the assignee thereunder shall be a party hereto and, to the extent of
such assignment, have the obligations,  rights, and benefits of a Bank hereunder
and the assigning Bank shall, to the extent of such  assignment,  relinquish its
rights and be  released  from its  obligations  under this  Agreement.  Upon the
consummation of any assignment pursuant to this Section 15.10(a),  the assignor,
                                                ----------------
Administrative  Agent and Borrower shall make appropriate  arrangements so that,
if  required,  new Notes are issued to the  assignor  and the  assignee.  If the
assignee is not incorporated under the Laws of the United States of America or a
state  thereof,   it  shall  deliver  to  Borrower  and   Administrative   Agent
certification  as to  exemption  from  deduction  or  withholding  of  Taxes  in
accordance with Section 14.6(d).
                ---------------

          (b)  Administrative  Agent shall  maintain at its address set forth on
Schedule  2.1  hereto,  a copy  of  each  Assignment  and  Acceptance  Agreement
-------------
delivered to and accepted by it and a register for the  recordation of the names
and addresses of the Banks and the Commitment and Commitment  Percentage of, and
principal  amount of the  Revolving  Loan 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 Borrower,  Administrative Agent and
Banks may treat each Person  whose name is  recorded  in the  Register as a Bank
hereunder for all purposes of this  Agreement.  The Register  shall be available
for inspection by the Borrower or any Bank at any reasonable  time and from time
to time upon reasonable prior notice.

          (c)  Upon  its  receipt  of an  Assignment  and  Acceptance  Agreement
executed  by the  parties  thereto,  together  with any  Notes  subject  to such
assignment and payment of the processing  fee,  Administrative  Agent shall,  if
such  Assignment  and  Acceptance   Agreement  has  been  completed  and  is  in
substantially the form of Exhibit K attached hereto,  (i) accept such Assignment
                          ---------
and Acceptance  Agreement,  (ii) record the information contained therein in the
Register, and (iii) give prompt notice thereof to the parties thereto.

          (d) Each Bank may sell participations to one or more Persons in all or
a portion of its rights and obligations under this Agreement (including all or a
portion of its  Commitment  and its interest in the Revolving  Loan);  provided,
                                                                       --------
however,  that (i) such Bank's  obligations  under this  Agreement  shall remain
-------   ----
unchanged,  (ii) such Bank shall remain solely  responsible to the other parties
hereto for the performance of such  obligations,  (iii) the participant shall be
entitled to the benefit of the yield protection  provisions contained in Article
                                                                         -------
XIV and the right of set-off  contained in Section 15.4, and (iv) Borrower shall
---                                        ------------
continue  to deal solely and  directly  with such Bank in  connection  with such
Bank's rights and obligations under this Agreement, and such

                                     10-68

<PAGE>

Bank shall retain the sole right to enforce the obligations of Borrower relating
to its interest in the Revolving Loan and its Note and to approve any amendment,
modification,  or  waiver  of  any  provision  of  this  Agreement  (other  than
amendments,  modifications,  or waivers decreasing the amount of principal of or
the rate at which  interest  is  payable  on the  Revolving  Loan or the  Notes,
extending any scheduled  principal payment date or date fixed for the payment of
interest on the Revolving Loan or the Notes, or extending its Commitment).

          (e)  Notwithstanding  any other provision set forth in this Agreement,
any Bank may at any time assign and pledge all or any portion of its interest in
the  Revolving  Loan  and its Note to any  Federal  Reserve  Bank as  collateral
security  pursuant to  Regulation A and any  Operating  Circular  issued by such
Federal Reserve Bank. No such  assignment  shall release the assigning Bank from
its obligations hereunder.

          (f) Any Bank may furnish any  information  concerning  the Borrower or
any of its  Subsidiaries  in the  possession  of such  Bank from time to time to
assignees and participants (including prospective assignees and participants).

          (g) Each  Loan  Paper  binds  and  inures to the  parties  to it,  any
intended  beneficiary  of it,  and  each  of  their  respective  successors  and
permitted  assigns.  Borrower  shall  not  assign  or  transfer  any  rights  or
obligations  under  any Loan  Paper or  permit  any  Credit  Party to  assign or
transfer any rights or obligations  under any Loan Paper without first obtaining
all Banks' consent,  and any purported assignment or transfer without all Banks'
consent is void.

     Section  15.11.  TEXAS LAW.  THIS  AGREEMENT,  EACH NOTE AND THE OTHER LOAN
                      ---------
PAPERS  HAVE  BEEN  EXECUTED  AND  DELIVERED  IN THE STATE OF TEXAS AND SHALL BE
CONSTRUED IN ACCORDANCE  WITH AND GOVERNED BY THE LAWS OF THE STATE OF TEXAS AND
THE LAWS OF THE UNITED STATES OF AMERICA,  EXCEPT TO THE EXTENT THAT THE LAWS OF
ANY STATE IN WHICH ANY  PROPERTY  INTENDED AS SECURITY  FOR THE  OBLIGATIONS  IS
LOCATED NECESSARILY GOVERN (A) THE PERFECTION AND PRIORITY OF THE LIENS IN FAVOR
OF  ADMINISTRATIVE  AGENT AND BANKS WITH RESPECT TO SUCH  PROPERTY,  AND (B) THE
EXERCISE OF ANY REMEDIES (INCLUDING FORECLOSURE) WITH RESPECT TO SUCH PROPERTY.

     Section 15.12. CONSENT TO JURISDICTION; WAIVER OF IMMUNITIES.
                    ---------------------------------------------

          (a) Borrower  hereby  irrevocably  submits to the  jurisdiction of any
Texas State or Federal court sitting in the Northern  District of Texas over any
action or proceeding  arising out of or relating to this  Agreement or any other
Loan Papers,  and Borrower hereby  irrevocably agrees that all claims in respect
of such action or proceeding  may be heard and determined in such Texas State or
Federal court. As an alternative,  Borrower  irrevocably consents to the service
of any and all process in any such action or proceeding by the mailing of copies
of such  process  to such  Person at its  address  specified  in  Section  15.1.
                                                                  -------------
Borrower agrees that a final judgment on any such action or proceeding  shall be
conclusive and may be enforced in other jurisdictions by suit on the judgment or
in any other manner provided by Law.

                                     10-69

<PAGE>

(b) Nothing in this Section 15.12 shall affect any right of Banks to serve legal
                    -------------
process in any other manner  permitted by Law or affect the right of any Bank to
bring any action or proceeding  against any Credit Party or their  properties in
the courts of any other jurisdictions.

          (c) To the extent  that  Borrower  has or  hereafter  may  acquire any
immunity  from  jurisdiction  of any  court or from any legal  process  (whether
through service or notice,  attachment  prior to judgment,  attachment in aid of
execution,  execution or otherwise) with respect to itself or its property, such
Person hereby  irrevocably  waives such  immunity in respect of its  obligations
under this Agreement and the other Loan Papers.

     Section 15.13. COUNTERPARTS; EFFECTIVENESS. This Agreement may be signed in
                    ---------------------------
any number of  counterparts,  each of which shall be an original,  with the same
effect as if the  signatures  thereto and hereto were upon the same  instrument.
Subject  to the terms  and  conditions  herein  set  forth  (including,  without
limitation,  the execution and delivery of the  Certificate  of  Effectiveness),
this  Agreement  shall become  effective  when  Administrative  Agent shall have
received counterparts hereof signed by all of the parties hereto or, in the case
of any Bank as to which an executed  counterpart  shall not have been  received,
Administrative   Agent  shall  have  received   telegraphic   or  other  written
confirmation from such Bank of execution of a counterpart hereof by such Bank.

     Section  15.14.  NO THIRD PARTY  BENEFICIARIES.  Except for the  provisions
                      -----------------------------
hereof  inuring to the  benefit of Agents not a party to this  Agreement,  it is
expressly  intended  that there  shall be no third  party  beneficiaries  of the
covenants, agreements, representations or warranties herein contained other than
third party beneficiaries permitted pursuant to Section 15.10.
                                                -------------

     Section 15.15. COMPLETE AGREEMENT. THIS AGREEMENT AND THE OTHER LOAN PAPERS
                    ------------------
COLLECTIVELY  REPRESENT THE FINAL  AGREEMENT BY AND AMONG BANKS,  AGENTS AND THE
CREDIT   PARTIES   AND  MAY  NOT  BE   CONTRADICTED   BY   EVIDENCE   OF  PRIOR,
CONTEMPORANEOUS,  OR SUBSEQUENT ORAL AGREEMENTS OF BANKS, AGENTS, AND THE CREDIT
PARTIES.  THERE ARE NO UNWRITTEN ORAL AGREEMENTS  AMONG BANKS,  AGENTS,  AND THE
CREDIT PARTIES.

     Section 15.16.  WAIVER OF JURY TRIAL.  BORROWER,  ADMINISTRATIVE  AGENT AND
                     --------------------
BANKS HEREBY  IRREVOCABLY AND  UNCONDITIONALLY  WAIVE TRIAL BY JURY IN ANY LEGAL
ACTION OR PROCEEDING  RELATING TO THIS AGREEMENT OR ANY OF THE OTHER LOAN PAPERS
AND FOR ANY COUNTERCLAIM THEREIN.

     Section 15.17. CONFIDENTIALITY. Administrative Agent and each Bank (each, a
                    ---------------
"LENDING PARTY") agrees to keep  confidential any information  furnished or made
 -------------
available  to  it  by  Borrower  pursuant  to  this  Agreement  that  is  marked
confidential;  provided that nothing herein shall prevent any Lending Party from
               -------- ----
disclosing  such  information (a) to any other Lending Party or any Affiliate of
any Lending Party, or any officer, director,  employee, agent, or advisor of any
Lending Party or any Affiliate of any Lending Party,  (b) to any other Person if
reasonably  incidental to the  administration  of the credit  facility  provided
herein,  (c) as required by any Law, rule or  regulation,  (d) upon the order of
any court or administrative agency, (e) upon the request


                                     10-70


<PAGE>

or  demand  of any  regulatory  agency  or  authority,  (f)  that is or  becomes
available  to the public or that is or becomes  available  to any Lending  Party
other than as a result of a disclosure by any Lending  Party  prohibited by this
Agreement,  (g) in connection with any litigation to which such Lending Party or
any of its affiliates may be a party,  (h) to the extent necessary in connection
with the  exercise of any remedy  under this  Agreement or any other Loan Paper,
and (i) subject to provisions  substantially  similar to those contained in this
Section 15.17, to any actual or proposed participant or assignee.
-------------

     IN WITNESS  WHEREOF,  the parties  hereto have caused this  Agreement to be
duly executed by their respective  Authorized Officers on the day and year first
above written.

                           [signature pages to follow]





                                     10-71

<PAGE>



                                SIGNATURE PAGE TO
                  SECOND AMENDED AND RESTATED CREDIT AGREEMENT
                                  BY AND AMONG
                      DENBURY RESOURCES, INC., AS BORROWER,
                 BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT,
                      THE OTHER AGENTS A PARTY THERETO, AND
                        THE FINANCIAL INSTITUTIONS LISTED
                        ON SCHEDULE 2.1 THERETO, AS BANKS





BORROWER:
--------

DENBURY RESOURCES, INC.,
a Delaware corporation



By:
    -------------------------------------------------
         Phil Rykhoek,
         Chief Financial Officer

Address for Notice:

5100 Tennyson Parkway
Suite 3000
Plano, Texas  75024
Fax No. (972) 673-2150







<PAGE>


                                SIGNATURE PAGE TO
                  SECOND AMENDED AND RESTATED CREDIT AGREEMENT
                                  BY AND AMONG
                      DENBURY RESOURCES, INC., AS BORROWER,
                 BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT,
                      THE OTHER AGENTS A PARTY THERETO, AND
                        THE FINANCIAL INSTITUTIONS LISTED
                        ON SCHEDULE 2.1 THERETO, AS BANKS




ADMINISTRATIVE AGENT:
--------------------

BANK OF AMERICA, N.A.,
as Administrative Agent


By:
   --------------------------------------------------
         J. Scott Fowler
         Managing Director



BANKS:
-----

BANK OF AMERICA, N.A.




By:
   --------------------------------------------------
         J. Scott Fowler,
         Managing Director






<PAGE>



                                SIGNATURE PAGE TO
                  SECOND AMENDED AND RESTATED CREDIT AGREEMENT
                                  BY AND AMONG
                      DENBURY RESOURCES, INC., AS BORROWER,
                 BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT,
                      THE OTHER AGENTS A PARTY THERETO, AND
                        THE FINANCIAL INSTITUTIONS LISTED
                        ON SCHEDULE 2.1 THERETO, AS BANKS




CO-AGENT:
--------

FLEET NATIONAL BANK,
successor in interest to BankBoston, N.A.



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



BANKS:
-----

FLEET NATIONAL BANK,
successor in interest to BankBoston, N.A.




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






<PAGE>



                                SIGNATURE PAGE TO
                  SECOND AMENDED AND RESTATED CREDIT AGREEMENT
                                  BY AND AMONG
                      DENBURY RESOURCES, INC., AS BORROWER,
                 BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT,
                      THE OTHER AGENTS A PARTY THERETO, AND
                        THE FINANCIAL INSTITUTIONS LISTED
                        ON SCHEDULE 2.1 THERETO, AS BANKS




CO-AGENT:
--------

BANK ONE, TEXAS, N.A.



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



BANKS:
-----

BANK ONE, TEXAS, N.A.



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






<PAGE>



                                SIGNATURE PAGE TO
                  SECOND AMENDED AND RESTATED CREDIT AGREEMENT
                                  BY AND AMONG
                      DENBURY RESOURCES, INC., AS BORROWER,
                 BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT,
                      THE OTHER AGENTS A PARTY THERETO, AND
                        THE FINANCIAL INSTITUTIONS LISTED
                        ON SCHEDULE 2.1 THERETO, AS BANKS




CO-AGENT:
--------

THE BANK OF NOVA SCOTIA



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



BANKS:
-----

THE BANK OF NOVA SCOTIA



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





<PAGE>



                                SIGNATURE PAGE TO
                  SECOND AMENDED AND RESTATED CREDIT AGREEMENT
                                  BY AND AMONG
                      DENBURY RESOURCES, INC., AS BORROWER,
                 BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT,
                      THE OTHER AGENTS A PARTY THERETO, AND
                        THE FINANCIAL INSTITUTIONS LISTED
                        ON SCHEDULE 2.1 THERETO, AS BANKS




BANKS:
-----

CHRISTIANIA BANK OG KREDITKASSE ASA



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






<PAGE>



                                SIGNATURE PAGE TO
                  SECOND AMENDED AND RESTATED CREDIT AGREEMENT
                                  BY AND AMONG
                      DENBURY RESOURCES, INC., AS BORROWER,
                 BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT,
                      THE OTHER AGENTS A PARTY THERETO, AND
                        THE FINANCIAL INSTITUTIONS LISTED
                        ON SCHEDULE 2.1 THERETO, AS BANKS




BANKS:
-----

CREDIT LYONNAIS NEW YORK BRANCH



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






<PAGE>



                                SIGNATURE PAGE TO
                  SECOND AMENDED AND RESTATED CREDIT AGREEMENT
                                  BY AND AMONG
                      DENBURY RESOURCES, INC., AS BORROWER,
                 BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT,
                      THE OTHER AGENTS A PARTY THERETO, AND
                        THE FINANCIAL INSTITUTIONS LISTED
                        ON SCHEDULE 2.1 THERETO, AS BANKS




BANKS:
-----

NATEXIS BANQUES POPULAIRES



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






<PAGE>



                                SIGNATURE PAGE TO
                  SECOND AMENDED AND RESTATED CREDIT AGREEMENT
                                  BY AND AMONG
                      DENBURY RESOURCES, INC., AS BORROWER,
                 BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT,
                      THE OTHER AGENTS A PARTY THERETO, AND
                        THE FINANCIAL INSTITUTIONS LISTED
                        ON SCHEDULE 2.1 THERETO, AS BANKS




BANKS:
-----

WELLS FARGO BANK TEXAS, N.A.



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








<PAGE>




<TABLE>
<CAPTION>
                                  SCHEDULE 2.1
                                  ------------
                             Financial Institutions

Banks                                        Commitment Amount         Commitment Percentage
-----                                        -----------------         ---------------------
<S>                                           <C>                          <C>
Bank of America, N.A                          $42,272,727.27               14.0909090909%
Fleet National Bank                           $40,909,090.91               13.6363636364%
Bank One, Texas, N.A.                         $40,909,090.91               13.6363636364%
The Bank of Nova Scotia                       $40,909,090.91               13.6363636364%
Credit Lyonnais - New York Branch             $39,545,454.55               13.1818181818%
Wells Fargo Bank Texas, N.A.                  $34,090,909.09               11.3636363636%
Christiania Bank OG Kreditkasse ASA           $34,090,909.09               11.3636363636%
Natexis Banques Populaires                    $27,272,727.27               9.0909090909%
Totals:                                       $300,000,000.00                 100.00%
=======================================  =========================  ============================
</TABLE>

<TABLE>
<CAPTION>
Banks                             Domestic Lending Office        Eurodollar Lending Office           Address for Notice
-----                             -----------------------        -------------------------           ------------------
<S>                             <C>                             <C>                               <C>
Bank of America, N.A.           901 Main Street, 64th Floor     901 Main Street, 64th Floor       901 Main Street, 64th Floor
                                Dallas, Texas 75202             Dallas, Texas 75202               Dallas, Texas 75202
                                Fax No. (214) 209-1285          Fax No. (214) 209-1285            Fax No. (214) 209-1285
Bank One, Texas, NA             910 Travis                      910 Travis                        500 Taylor Street
                                TX2-4330                        TX2-4330                          TX1-1420
                                Houston, Texas  77002           Houston, Texas  77002             Fort Worth, Texas  76102
                                Fax No. (713) 751-3544          Fax No. (713) 751-3544            Fax No. (817) 884-4095

                                                                                                  with a copy to:
                                                                                                  910 Travis
                                                                                                  TX2-4330
                                                                                                  Houston, Texas  77002
                                                                                                  Fax No. (713) 751-3544

Fleet National Bank             100 Federal Street              100 Federal Street                100 Federal Street
                                01-08-04                        01-08-04                          01-08-04
                                Boston, MA 02110                Boston, MA 02110                  Boston, MA 02110
                                Fax No.  (617) 434-3652         Fax No.  (617) 434-3652           Fax No.  (617) 434-3652

Christiania  Bank OG            11 West 42nd  Street, 7th Floor 11 West 42nd  Street,7th Floor    11 West 42nd Street,  7th Floor
Kreditkasse  ASA                New York, New York 10036        New York, New York 10036          New York, New York 10036
                                Fax No. (212) 827-4888          Fax No. (212) 827-4888            Fax No. (212) 827-4888

Credit Lyonnais New York        1301 Avenue of the Americas     1301 Avenue of the Americas       1000 Louisiana, Suite 5360
Branch                          New York, New York 10019        New York, New York 10019          Houston, Texas 77002
                                Fax No. (917) 849-5440          Fax No. (917) 849-5440            Fax No.  (715) 751-0307

Natexis Banques Populaires      333 Clay Street, Suite 4340     333 Clay Street, Suite 4340       333 Clay Street, Suite 4340
                                Houston, Texas 77002            Houston, Texas 77002              Houston, Texas 77002
                                Fax No.  (713) 759-9908         Fax No.  (713) 759-9908           Fax No.  (713) 759-9908

The Bank of Nova Scotia         The Bank of Nova Scotia         The Bank of Nova Scotia           The Bank of Nova Scotia
                                Atlanta Agency                  Atlanta Agency                    Atlanta Agency
                                600 Peachtree St. N.E.,         600 Peachtree St. N.E.,           600 Peachtree St. N.E.,
                                Suite 2700                      Suite 2700                        Suite 2700
                                Atlanta, Georgia 30308          Atlanta, Georgia 30308            Atlanta, Georgia 30308
                                Fax No.  (404) 888-8998         Fax No.  (404) 888-8998           Fax No.  (404) 888-8998

Wells Fargo Bank Texas, N.A.    1445 Ross Avenue, Suite 200     1740 Broadway, 3rd Floor          1445 Ross Avenue, Suite 200
                                MAC# T5303-029                  Denver, Colorado 80274            MAC# T5303-029
                                Dallas, Texas 75202             Attn: Tanya Ivie, Prod. Mgr.      Dallas, Texas 75202
                                Fax No.  (214) 303-1839         Fax No.  (214) 777-4044           Fax No.  (214) 303-1839
==============================  =============================== ================================  ================================
</TABLE>

Administrative Agent - Address:
901 Main Street, 64th Floor
Dallas, Texas 75202
Fax No. (214) 209-1285


                                Schedule 2.1 - 1

<PAGE>


                                  SCHEDULE 2.2
                                  ------------

                               Existing Mortgages


1.       Mortgage,  Deed of Trust,  Security Agreement,  Financing Statement and
         Assignment  of Production  dated as of March 1, 1999,  from Borrower to
         Administrative  Agent,  recorded  in the office of the County  Clerk of
         Clarke  County,  Mississippi  on April 8, 1999 at Book  DT220,  Page(s)
         732-810.

2.       Mortgage,  Deed of Trust,  Security Agreement,  Financing Statement and
         Assignment  of Production  dated as of March 1, 1999,  from Borrower to
         Administrative  Agent,  recorded  in the office of the County  Clerk of
         Franklin  County,  Mississippi on March 12, 1999, as File Number 024152
         in Book 214, Page(s) 231-263.

3.       Mortgage,  Deed of Trust,  Security Agreement,  Financing Statement and
         Assignment  of Production  dated as of March 1, 1999,  from Borrower to
         Administrative  Agent,  recorded  in the office of the County  Clerk of
         Jasper  County,  Mississippi  on March 15, 1999,  in Book 106,  Page(s)
         586-663.

4.       Mortgage,  Deed of Trust,  Security Agreement,  Financing Statement and
         Assignment  of Production  dated as of March 1, 1999,  from Borrower to
         Administrative  Agent,  recorded  in the office of the County  Clerk of
         Jefferson  Davis  County,  Mississippi  on March 18, 1999, in Book 450,
         Page 296 as Document Number 9900823 .

5.       Mortgage,  Deed of Trust,  Security Agreement,  Financing Statement and
         Assignment  of Production  dated as of March 1, 1999,  from Borrower to
         Administrative  Agent,  recorded  in the office of the County  Clerk of
         Hinds County,  Mississippi  on March 18, 1999, as File Number 106313 in
         Book 334, Page 525.

6.       Mortgage,  Deed of Trust,  Security Agreement,  Financing Statement and
         Assignment  of Production  dated as of March 1, 1999,  from Borrower to
         Administrative  Agent,  recorded  in the office of the Second  District
         County Clerk of Jones  County,  Mississippi  on March 19, 1999, in Book
         1192, Page 521.

7.       Mortgage,  Deed of Trust,  Security Agreement,  Financing Statement and
         Assignment  of Production  dated as of March 1, 1999,  from Borrower to
         Administrative  Agent,  recorded  in the office of the County  Clerk of
         Lowndes  County,  Mississippi  on March 15, 1999,  as Trust Deed Number
         1270, Page(s) 417-449.

8.       Mortgage,  Deed of Trust,  Security Agreement,  Financing Statement and
         Assignment  of Production  dated as of March 1, 1999,  from Borrower to
         Administrative  Agent,  recorded  in the office of the County  Clerk of
         Madison County,  Mississippi on March 12, 1999, in Book 1159, Page 738,
         as Document Number 276499.


                                Schedule 2.2 - 1



<PAGE>

9.       Mortgage,  Deed of Trust,  Security Agreement,  Financing Statement and
         Assignment  of Production  dated as of March 1, 1999,  from Borrower to
         Administrative  Agent,  recorded  in the office of the County  Clerk of
         Rankin County, Mississippi on March 12, 1999, in Book 1394, Page 560.

10.      Mortgage,  Deed of Trust,  Security Agreement,  Financing Statement and
         Assignment  of Production  dated as of  March 1, 1999, from Borrower to
         Administrative  Agent,  recorded  in the office of the County  Clerk of
         Smith County,  Mississippi on March 12, 1999, in OGL Book 404, Page(s)
         405- 439.

11.      Mortgage,  Deed of Trust,  Security Agreement,  Financing Statement and
         Assignment  of Production  dated as of March 1, 1999,  from Borrower to
         Administrative  Agent,  recorded  in the office of the County  Clerk of
         Walthall County, Mississippi on March 12, 1999, in Land Deed Trust Book
         258, Page 224.

12.      Mortgage,  Deed of Trust,  Security Agreement,  Financing Statement and
         Assignment  of Production  dated as of March 1, 1999,  from Borrower to
         Administrative  Agent,  recorded  in the office of the County  Clerk of
         Wayne  County,  Mississippi  on March 12, 1999,  in Deed Book 975, Page
         365.

13.      Mortgage,  Deed of Trust,  Security Agreement,  Financing Statement and
         Assignment  of Production  dated as of March 1, 1999,  from Borrower to
         Administrative  Agent, recorded in the office of the Clerk of Court for
         Acadia Parish, Louisiana on March 12, 1999 as Document Number 658835 in
         MOB 562, Page 36 and COB N56, Page 91.

14.      Mortgage,  Deed of Trust,  Security Agreement,  Financing Statement and
         Assignment  of Production  dated as of March 1, 1999,  from Borrower to
         Administrative  Agent, recorded in the office of the Clerk of Court for
         Avoyelles  Parish,  Louisiana on March 12, 1999, as Clerk's File Number
         9901907, MOB Book Number 450 and MIN Book Number 194.

15.      Mortgage,  Deed of Trust,  Security Agreement,  Financing Statement and
         Assignment  of Production  dated as of March 1, 1999,  from Borrower to
         Administrative  Agent, recorded in the office of the Clerk of Court for
         Cameron  Parish,  Louisiana on March 12, 1999,  as Clerk File's  Number
         259143 and Conveyance Book Number 892 and Mortgage Book Number 239.

16.      Mortgage,  Deed of Trust,  Security Agreement,  Financing Statement and
         Assignment  of Production  dated as of March 1, 1999,  from Borrower to
         Administrative  Agent, recorded in the office of the Clerk of Court for
         Concordia Parish,  Louisiana on March 12, 1999, in COB Book Number 377,
         Folio 508 and MOB Book Number 305, Folio 679 as Document Number 225538.

17.      Mortgage,  Deed of Trust,  Security Agreement,  Financing Statement and
         Assignment  of Production  dated as of March 1, 1999,  from Borrower to
         Administrative  Agent, recorded in the office of the Clerk of Court for
         Desoto  Parish,  Louisiana  on March 12,  1999,  as Clerk's File Number
         571636.



                                Schedule 2.2 - 2


<PAGE>

18.      Mortgage,  Deed of Trust,  Security Agreement,  Financing Statement and
         Assignment  of Production  dated as of March 1, 1999,  from Borrower to
         Administrative  Agent, recorded in the office of the Clerk of Court for
         Iberia  Parish,  Louisiana on March 16, 1999,  in Mortgage  Book Number
         A753, Entry Number 99-3310.

19.      Mortgage,  Deed of Trust,  Security Agreement,  Financing Statement and
         Assignment  of Production  dated as of March 1, 1999,  from Borrower to
         Administrative  Agent, recorded in the office of the Clerk of Court for
         Jackson  Parish,  Louisiana on March 12,  1999,  as Clerk's File Number
         328899 in Conveyance  Book Number 306, Page 71 and Mortgage Book Number
         184, Page 721.

20.      Mortgage,  Deed of Trust,  Security Agreement,  Financing Statement and
         Assignment  of Production  dated as of March 1, 1999,  from Borrower to
         Administrative  Agent, recorded in the office of the Clerk of Court for
         Jefferson  Parish,  Louisiana on March 15, 1999, as Clerk's File Number
         560349 in MOB Book Number 413, Page 299.

21.      Mortgage,  Deed of Trust,  Security Agreement,  Financing Statement and
         Assignment  of Production  dated as of March 1, 1999,  from Borrower to
         Administrative  Agent, recorded in the office of the Clerk of Court for
         LaFourche Parish,  Louisiana on March 17, 1999, in Mortgage Book Number
         806, Folio Number 30, as Entry Number 849538.

22.      Mortgage,  Deed of Trust,  Security Agreement,  Financing Statement and
         Assignment  of Production  dated as of March 1, 1999,  from Borrower to
         Administrative  Agent, recorded in the office of the Clerk of Court for
         Point Coupee  Parish,  Louisiana  on March 12, 1999,  in MB Book 269 as
         Clerk's Number 82.

23.      Mortgage,  Deed of Trust,  Security Agreement,  Financing Statement and
         Assignment  of Production  dated as of March 1, 1999,  from Borrower to
         Administrative  Agent, recorded in the office of the Clerk of Court for
         Rapides  Parish,  Louisiana on March 12, 1999,  in Mortgage  Book 1556,
         Page 153, and Conveyance Book 1553, Page 897 and as Clerk's File Number
         1097748.

24.      Mortgage,  Deed of Trust,  Security Agreement,  Financing Statement and
         Assignment  of Production  dated as of March 1, 1999,  from Borrower to
         Administrative  Agent, recorded in the office of the Clerk of Court for
         Red River Parish,  Louisiana on March 15, 1999,  as  Instrument  Number
         191,356.

25.      Mortgage,  Deed of Trust,  Security Agreement,  Financing Statement and
         Assignment  of Production  dated as of March 1, 1999,  from Borrower to
         Administrative  Agent, recorded in the office of the Clerk of Court for
         St.  Charles  Parish,  Louisiana  on March 12, 1999,  in Mortgage  Book
         Number 703, Folio Number 20, as Clerk's File Number 230509.

26.      Mortgage,  Deed of Trust,  Security Agreement,  Financing Statement and
         Assignment  of Production  dated as of March 1, 1999,  from Borrower to
         Administrative  Agent, recorded in the office of the Clerk of Court for
         St. Martin Parish, Louisiana on March 12, 1999, in Mortgage Book Number
         809, Folio Number 423, and as Clerk's File Number 001623.



                                Schedule 2.2 - 3




<PAGE>
27.      Mortgage,  Deed of Trust,  Security Agreement,  Financing Statement and
         Assignment  of Production  dated as of March 1, 1999,  from Borrower to
         Administrative  Agent, recorded in the office of the Clerk of Court for
         St. Mary Parish,  Louisiana on March 12, 1999,  in Mortgage Book Number
         807, Entry Number 232,984, Page Number 477.

28.      Mortgage,  Deed of Trust,  Security Agreement,  Financing Statement and
         Assignment  of Production  dated as of March 1, 1999,  from Borrower to
         Administrative  Agent, recorded in the office of the Clerk of Court for
         Terrebonne Parish,  Louisiana on March 12, 1999, as Clerk's File Number
         1041400.

29.      Mortgage,  Deed of Trust,  Security Agreement,  Financing Statement and
         Assignment  of Production  dated as of March 1, 1999,  from Borrower to
         Administrative  Agent, recorded in the office of the Clerk of Court for
         Vermilion  Parish,  Louisiana on March 16, 1999, as Clerk's File Number
         9902951.

30.      Mortgage,  Deed of Trust,  Security Agreement,  Financing Statement and
         Assignment  of Production  dated as of March 1, 1999,  from Borrower to
         Administrative  Agent, recorded in the office of the Clerk of Court for
         Webster Parish, Louisiana on March 16, 1999, as Registry Number 427114.



                                Schedule 2.2 - 4

<PAGE>

                                  SCHEDULE 8.5
                                  ------------

                                   Litigation

                                      None














                                Schedule 8.5 - 1

<PAGE>





                                  SCHEDULE 8.10
                                  -------------

                             Licenses, Permits, Etc.

                                      None













                               Schedule 8.10 - 1

<PAGE>



                                  SCHEDULE 8.13
                                  -------------

                              Jurisdictions, Etc.



















                               Schedule 8.13 - 1
<PAGE>




                                 SCHEDULE 9.10
                                 -------------

                            Environmental Disclosure

                                      None

















                               Schedule 9.10 - 1



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