1
                                                                    EXHIBIT 4(c)


                                 NOTE AGREEMENT

                           Dated as of April 25, 1989

                                  By and Among

                         AEJH 1989 LIMITED PARTNERSHIP,

                          ALEXANDER ENERGY CORPORATION

                                      And

                   JOHN HANCOCK MUTUAL LIFE INSURANCE COMPANY

                          10-1/2% Senior Secured Notes
   2

                              TABLE OF CONTENTS



                                                                       
SECTION 1.    PURCHASE AND SALE OF NOTES..................................    1
      1.1     Issue of Notes..............................................    1
      1.2     The Closing.................................................    3
      1.3     Purchase for Investment.....................................    4
      1.4     Failure to Deliver..........................................    4
      1.5     Expenses....................................................    4
      1.6     Escrow Arrangements.........................................    5

SECTION 2.    WARRANTIES AND REPRESENTATIONS..............................   10
      2.1     Organization and Authority..................................   10
      2.2     Business....................................................   12
      2.3     Financial Statements........................................   12
      2.4     Full Disclosure.............................................   13
      2.5     Pending Litigation..........................................   14
      2.6     Title to Properties.........................................   14
      2.7     Compliance with Laws and Other Instruments..................   15
      2.8     No Defaults.................................................   15
      2.9     Governmental Consents; Offering of Notes....................   15
      2.10    Taxes.......................................................   16
      2.11    Use of Proceeds.............................................   16
      2.12    Insurance Coverage..........................................   17
      2.13    Brokers and Finders.........................................   17
      2.14    Restrictions on Company and Affiliates......................   17
      2.15    ERISA.......................................................   17
      2.16    Trading With the Enemy Act, Etc.; Holding Company;            
                Investment Company........................................   18
      2.18    Trademarks, Patents, Etc. ..................................   19
      2.19    Equity Repurchase Obligations...............................   19
      2.20    Local Qualification and Taxes...............................   19
      2.21    Hazardous Materials.........................................   20
                                                                            
SECTION 3.    CLOSING CONDITIONS..........................................   20
      3.1     Your Conditions.............................................   20
      3.2     Company's Condition.........................................   22

SECTION 4.   PURCHASER'S SPECIAL RIGHTS...................................   22
      4.1    Direct Payment...............................................   22
      4.2    Delivery Expenses............................................   22
      4.3    Issue and Other Taxes........................................   23

SECTION 5.   REGISTRATION; SUBSTITUTION OF NOTES; INTEREST................   23
      5.1    Registration of Notes........................................   23
      5.2    Exchange of Notes............................................   23
      5.3    Replacement of Notes.........................................   24
      5.4    Interest.....................................................   24

SECTION 6.   COMPANY BUSINESS COVENANTS...................................   24
      6.1    Payment of Taxes and Claims..................................   24
      6.2    Maintenance of Properties and Existence......................   25


   3


                                                                       
      6.3     Payment of Notes and Maintenance of Office..................   26
      6.4     Covenant to Secure Note.....................................   27
      6.5     Sale of Assets; Merger and Consolidation....................   27
      6.6     Liens and Encumbrances......................................   29
      6.7     Consolidated Debt...........................................   30
      6.8     Distributions and Investments...............................   30
      6.9     Guaranties..................................................   30
      6.10    ERISA Information and Compliance............................   31
      6.11    Transactions with Affiliates................................   33
      6.12    Sale or Discount of Receivables.............................   34
      6.13    Business....................................................   34
      6.14    Acquisition of Notes........................................   34
      6.15    Certain Registrations or Approvals..........................   34
      6.16    Oil and Gas Business and Properties.........................   34
      6.17    Indemnity With Respect to Certain Representations and 
                Warranties................................................   35
                                                                               
SECTION 7.    INFORMATION AS TO COMPANY...................................   37
      7.1     Financial and Business Information..........................   37
      7.2     Officers' Certificates......................................   40
      7.3     Accountants' Certificate....................................   41
      7.4     Inspection..................................................   41

SECTION 8.    PREPAYMENT OF NOTES.........................................   42
      8.1     Required Prepayments........................................   42
      8.2     Additional Required Prepayments; Additional Security........   42
      8.3     No Prepayment or Call.......................................   43
                                                                           
SECTION 9.    EVENTS OF DEFAULT...........................................   43
      9.1     Nature of Events............................................   43
      9.2     Default Remedies............................................   46
      9.3     Annulment of Acceleration of Notes..........................   48
      9.4     Recourse and Non-Recourse Matters...........................   48
                                                                           
SECTION 10.   INTERPRETATION OF THIS AGREEMENT............................   49
     10.1     Terms Defined...............................................   49
     10.2     Accounting Principles.......................................   59
     10.3     Directly or Indirectly......................................   59
     10.4     Governing Law...............................................   59
     10.5     References..................................................   60
                                                                           
SECTION 11.   MISCELLANEOUS...............................................   60
     11.1     Notices.....................................................   60
     11.2     Survival....................................................   60
     11.3     Successors and Assigns......................................   60
     11.4     Amendment and Waiver........................................   61
     11.5     Knowledge...................................................   62
     11.6     Multiple Counterparts.......................................   62

   4
                                DEFINED TERMS
                                -------------


                                                                     
1993 Act..............................................................   4, 59
Affiliate.............................................................      49
Agreement.............................................................       1
Alexander Contract Operating Agreement................................   9, 21
Assignments...........................................................      21
Business Day..........................................................      49
Capitalized Lease Obligations.........................................      49
Chattel Paper.........................................................      49
Closing...............................................................   3, 49
Closing Date..........................................................   3, 49
Code..................................................................      49
Collateral............................................................       2
Company...............................................................       1
Consolidated Debt.....................................................      49
Consolidated Net Income...............................................      50
Contract Operating Agreements.........................................      51
Contracts.............................................................      51
Control...............................................................      49
Default...............................................................      51
Distribution..........................................................      51
ERISA.................................................................      51
ERISA Affiliate.......................................................      52
ERISA Event...........................................................      52
Escrow Agreement......................................................       5
Escrow Properties.....................................................       6
Event of Default......................................................  43, 52
Financing Statements..................................................       4
First Lien Collateral.................................................      52
General Escrow Note...................................................       5
General Escrow Properties.............................................       6
General Partner.......................................................   1, 11
Governmental Authorities..............................................      52
Guaranty..............................................................  30, 52
Hazardous Materials...................................................      52
Hazardous Materials Claims............................................      53
Hazardous Materials Laws..............................................      53
Indebtedness..........................................................      53
Industrial revenue bonds..............................................      49
Institutional Holder..................................................      53
Investments...........................................................      58
Joint Ventures........................................................      54
Legal Requirements....................................................      54
Lender Account........................................................       7
Lien..................................................................      54
Margin security.......................................................      16
Maximum Lawful Rate...................................................       1
Minerals..............................................................      54
Mortgages.............................................................       3
Multiemployer Plan....................................................      54
Net Proceeds..........................................................      55
Net Revenue Interest..................................................  14, 36


                                    -iii-
   5

                                                                     
Net Worth............................................................       55
Non-Recourse Matters.................................................       55
Note Agreement.......................................................        1
Notes................................................................    1, 55
NRI..................................................................   14, 36
Officers' Certificate ...............................................       55
Oil and Gas Properties...............................................     3, 6
Partnership..........................................................       55
PBGC.................................................................       56
Permits..............................................................       56
Permitted Liens......................................................   29, 56
Person...............................................................       56
Plan.................................................................       56
Pollution control bonds..............................................       49
Present Value of Estimated Future Net Revenues.......................       56
Primary obligor......................................................       30
Property or Properties...............................................       56
Purchase Agreement...................................................       16
Purchaser Account....................................................        7
Receivables..........................................................       57
Recourse Matters.....................................................       57
References...........................................................       60
Registered Notes.....................................................    2, 57
Release..............................................................        7
Release Date.........................................................        7
Restricted Investments...............................................       58
Security.............................................................       58
Senior Secured Debt..................................................       42
Stevens Escrow Note..................................................        6
Stevens Escrow Properties............................................        6
Subject Interests....................................................        3
Subordinated Debt....................................................       58
Subsidiary...........................................................       58
Substantial Part.....................................................       58
Surviving entity.....................................................       28
Valuation Date.......................................................       35
Voting Stock.........................................................       59
Wholly-Owned Subsidiary..............................................       59
WI...................................................................   14, 36
Working Interest.....................................................   14, 36
Zilkha...............................................................    5, 16
Zilkha Account.......................................................        7
Zilkha Contract Operating Agreement..................................    9, 21


                                     -iv-
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                                   EXHIBITS



                                                 
Exhibit 1.1(vi)..................................   Registered Notes
Exhibit 1.1(vii).................................   Collateral
Exhibit 1.2(ii)-1................................   Form of Mortgage, Deed of
                                                    Trust, Assignment of
                                                    Proceeds, Security Agreement
                                                    and Financing Statement
Exhibit 1.2(ii)-2................................   Oil and Gas Properties
Exhibit 1.6(a)...................................   Form of Escrow Agreement
Exhibit 1.6(a)(i)-1..............................   General Escrow Properties
Exhibit 1.6(a)(i)-2..............................   Stevens Escrow Properties
Exhibit 2.1(a)-1.................................   Limited Partnership
                                                    Interests of Company
Exhibit 2.5......................................   Pending Litigation
Exhibit 2.12.....................................   Insurance Coverage
Exhibit 2.14.....................................   Restrictions Against
                                                    Consolidated Debt
Exhibit 2.19.....................................   Equity Repurchase
                                                    Obligations
Exhibit 3.1(a)...................................   Opinion of McAfee & Taft
Exhibit 3.1(h)(i)................................   Form of Assignment, Bill
                                                    of Sale and Conveyance
Exhibit 3.1(h)(ii)...............................   Form of Alexander Contract
                                                    Operating Agreement
Exhibit 3.1(h)(iii)..............................   Form of Zilkha Contract
                                                    Operating Agreement
Exhibit 4.1......................................   Schedule of Information
                                                    for Payments and Notices




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                           AEJH 1989 LIMITED PARTNERSHIP
                           ____________________________

                                 $2,185,276.30
                           ____________________________

              10-1/2% Senior Secured Notes due December 31, 1999

                                      Dated as of April 25, 1989

John Hancock Mutual Life
  Insurance Company
Bond and Corporate Finance
  Department, T-57
John Hancock Place
200 Clarendon Street
Boston, Massachusetts 02117

         Attention:  William A. Kinsley

Dear Sirs:

         AEJH 1989 Limited Partnership (the "Company"), a Delaware limited
partnership, and its general partner, Alexander Energy Corporation, an Oklahoma
corporation (the "General Partner"), hereby agree with you as follows (this
letter agreement being entitled the "Note Agreement" and sometimes referred to
herein as this "Agreement" and certain terms being defined in Section 10.1 or
elsewhere herein):

SECTION 1.  PURCHASE AND SALE OF NOTES

         1.1  Issue of Notes. Subject to the provisions of Section 1.6, the
Company will duly authorize the issue of TWO MILLION ONE HUNDRED EIGHTY-FIVE
THOUSAND TWO HUNDRED SEVENTY-SIX AND 30/100 ($2,185,276.30) in aggregate
principal amount of its 10-1/2% Senior Secured Notes due December 31, 1999 (the
"Notes"). Each Note (i) will be in the amount of at least the lesser of
$500,000 or the remaining outstanding principal amount of any Note or Notes
being surrendered in exchange for the Note in question pursuant to Section 5.2
(except for any Notes issued pursuant to Section 1.6, which shall be in the
amount or amounts provided for therein), (ii) will bear interest on the unpaid
principal balance thereof from the date of the Note at the lesser of the rate
of 10-1/2% per annum or the maximum rate of interest that may be lawfully
contracted for, charged, taken, reserved, or received by you from the Company
in connection with this Agreement under applicable law (the "Maximum Lawful
Rate"), (iii) will require monthly payments of accrued interest in arrears on
the first Business Day of each calendar month, commencing June 1, 1989, until
the principal amount thereof 
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shall be paid, with the final interest payment being due and payable
upon maturity of the Notes, (iv) will bear interest on any overdue principal
(including any overdue prepayment of principal) and (to the extent permitted by
applicable law) on any overdue installment of interest, at the lesser of (a)
the greater (determined on a daily basis) of (1) the rate of 12-1/2% per annum
and (2) the rate per annum that The Chase Manhattan Bank, N.A. announces
publicly from time to time as its "prime" rate of interest or successor rate,
and (b) the Maximum Lawful Rate, (v) will be subject to certain required
prepayments of principal, but will not otherwise be prepayable, and will mature
on December 31, 1999, (vi) will be substantially in the form set out in Exhibit
1.1 (vi) (herein sometimes called the "Registered Notes") to this Agreement, and
(vii) will be secured by the collateral described in Exhibit 1.1 (vii) hereto
(the "Collateral"). It is expressly stipulated and agreed to be the intention
of the Company and you to comply at all times with applicable laws governing
the maximum rate or amount of interest payable on or in connection with the
Notes. Accordingly, if any of the transactions contemplated hereby would be
usurious under applicable law now or hereafter governing the interest payable
hereunder (including applicable United States federal law or applicable state
law, to the extent not preempted by United States federal law), then, in that
event, notwithstanding anything to the contrary in this Note Agreement or any
other agreement entered into in connection with or as security for any Note, it
is agreed as follows: (x) the aggregate of all consideration that constitutes
interest under applicable law that is contracted for, charged, taken, reserved,
or received under such Note or under any of the other aforesaid agreements or
otherwise in connection with such Note under no circumstances shall exceed the
maximum amount of interest allowed by applicable law, and any excess shall be
credited on such Note by the holder thereof (or if such Note shall have been
paid in full, refunded to the Company); and (y) in the event that maturity of
such Note is accelerated by reason of an election by the holder thereof
resulting from any default hereunder or otherwise, or in the event of any
required or permitted prepayment or conversion, then such consideration that
constitutes interest may never include more than the maximum amount allowed by
applicable law, and excess interest, if any, provided for in such Note or
otherwise shall be cancelled automatically as of the date of such 
acceleration or prepayment and, if theretofore prepaid, shall be credited 
on such Note (or if such Note shall have been paid in full, refunded 
to the Company), and the provisions of such Note, such Note Agreement 
and any other agreements entered into in connection with or as 
security for such Note shall immediately be deemed reformed and the 
amounts thereafter collectible hereunder and thereunder reduced accordingly, 
without the necessity of the execution of any new document, so as to 
comply with the then applicable law. Determination of the


                                      -2-
   9
rate of interest for purposes of determining whether this transaction is
usurious under any applicable laws, to the full extent permitted by applicable
law, shall be made by amortizing, prorating, allocating, and spreading
throughout the full stated term hereof until payments in full, all sums at any
time contracted for, charged, taken, reserved, or received from the Company
for the use, forbearance, or detention of money in connection herewith.

         1.2     The Closing. Subject to the terms and conditions hereof and 
on the basis of the representations and warranties hereinafter set forth, the
Company hereby agrees to issue and sell to you, and you hereby agree to purchase
from the Company, in accordance with the provisions of this Agreement, up to the
aggregate principal amount of the Notes at a price of 100% of the principal
amount of the Notes. The closing of your purchase (the "Closing") shall be held
at 2:00 p.m. Boston time on April 25, 1989 ("Closing Date") at your offices in
Boston, Massachusetts. Subject to the provisions of Section 1.6, at the Closing
the Company will duly execute and deliver to you, against payment by check or
bank wire transfer (to an account in Massachusetts designated in writing to you
by the Company no later than twenty-four hours prior to the Closing) in
immediately available funds, (i) a single Note in the principal amount of
$2,052,122.50, dated the Closing Date and payable to you, and (ii) a Mortgage,
Deed of Trust, Assignment of Proceeds, Security Agreement and Financing
Statement substantially in the form of Exhibit 1.2(ii)-1 hereto as to each of
the oil, gas and mineral interests, leases, estates and other Properties (or
portions thereof or interests therein) described in Exhibit 1.2(ii)-2 hereto
(collectively, the "Oil and Gas Properties") (collectively, the "Mortgages") to
the extent of the rights, titles, interests and claims of the Company therein
and in the unitization and pooling agreements applicable thereto and the units
created thereby (such rights, titles, interests and claims of the Company being
herein referred to as the "Subject Interests"), regardless of whether such
rights, titles, interests or claims be under or by virtue of fee mineral or
surface interests, royalty interests, overriding royalty interests, net profits
interests, production payments and similar interests, leases, subleases, farmout
agreements or other participation agreements of any kind, unitization or pooling
agreements, unitization or pooling orders, operating agreements, division
orders, transfer orders or any other type of contract, conveyance or instrument
or under any other type of title, legal or equitable, recorded or unrecorded,
even though the Company's Subject Interest be incorrectly or incompletely
described in Exhibit 1.2(ii)-2, all as the same shall be enlarged by the
discharge of any payments out of production, by the removal of any charges or
encumbrances to which any of the same are or become subject, or by the entering
into of non-consent operations, together with the
        

                                      -3-
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related financing statements ("Financing Statements"), the Mortgages and
Financing Statements being in form and number of original counterparts suitable
for recordation in the appropriate public records where each Oil and Gas
Property is located.

         1.3     Purchase for Investment.

                 (a)      You represent to the Company that you are acquiring
         the Notes for your own account for the purpose of investment and not
         with a view to the resale or distribution thereof; provided, however,
         that the disposition of your property shall at all times be within
         your control. It is understood that, in making the representations set
         out in Sections 2.7 and 2.9, the Company is relying, to the extent
         applicable, upon your representation in this Section 1.3(a).

                 (b)      You agree that you will not sell or otherwise dispose
         of any Note in the absence of (i) registration under the Securities
         Act of 1933, as amended (the "1933 Act") or any applicable state
         securities laws, or (ii) an opinion acceptable in form to the Company
         from counsel reasonably satisfactory to the Company (it being
         understood that counsel on your in-house legal staff is satisfactory
         counsel), or an opinion of counsel to the Company, to the effect that
         no registration is required for such disposition, or (iii) as to the
         1933 Act, a "no-action" letter from the staff of the Securities and
         Exchange Commission to the effect that such staff will not recommend
         any action to such commission if such a disposition takes place
         without registration.

         1.4      Failure to Deliver. Subject to Section 1.6, if at the Closing
the Company fails to tender to you the Notes to be purchased by you or the
Mortgages or the Financing Statements or if the conditions specified in Section
3.1 have not been fulfilled, you thereupon may elect to be relieved of all
further obligations under this Agreement. Nothing in this Section shall
operate to relieve the Company from any of its obligations hereunder or to
waive any of your rights against the Company.

         1.5     Expenses. Regardless of whether the Notes are sold, except as
otherwise specifically provided in this Agreement or the documents delivered at
the Closing, the Company will pay all expenses relating to this Agreement,
including, without limitation, the following:

                 (a)      the cost of reproducing this Agreement, the Notes,
         the Mortgages, the Financing Statements, the Purchase Agreement, the
         Contract Operating Agreements, the Escrow Agreement, and the other
         documents contemplated hereby and thereby, and the cost of filing


                                      -4-
   11
         any of same (if applicable) in appropriate public records,

                 (b)      the reasonable fees and disbursements of all of
         your special counsel and special local counsel as well as the
         Company's counsel and special title counsel,

                 (c)      your reasonable out-of-pocket expenses,

                 (d)      all expenses relating to any amendments, waivers or
         consents pursuant to the provisions of this Agreement, the Notes, the
         Mortgages, the Financing Statements, and the other documents
         contemplated hereby and thereby,

                 (e)      all expenses relating to the enforcement of your
         rights under this Agreement, the Notes, the Mortgages, the Financing
         Statements, and the other documents and transactions contemplated
         hereby and thereby, and

                 (f)      all expenses relating to the Escrow Agreement and the
         transactions contemplated thereby, including without limitation, the
         fees and expenses of the Escrow Agent, and the reasonable fees and
         disbursements of all of your special counsel and special local counsel
         as well as the Company's counsel and special title counsel incurred in
         connection with the transactions contemplated by the Escrow Agreement.

The obligations of the Company under this Section 1.5 shall survive the payment
or prepayment, if any, of the Notes and the termination of this Agreement.

         1.6     Escrow Arrangements.

                 (a)      In addition to the transactions described in and
         deliveries required pursuant to Section 1.2, it is understood and
         agreed that, at the Closing, you, the Company and the General Partner
         shall enter into with Zilkha Energy Company, a Delaware corporation
         ("Zilkha"), an Escrow Agreement substantially in the form of Exhibit
         1.6(a) hereto (the "Escrow Agreement"), and the General Partner, the
         Company and you shall perform or cause to be performed each of the
         transactions provided therein to be performed by or caused to be
         performed by the General Partner, the Company or you, respectively, at
         or prior to Closing, including but not limited to the following:

                          (i)     The Company will duly execute and deliver to
                 the Escrow Agent two Notes in the principal amount of
                 $75,123.79 (the "General Escrow Note") with respect to the
                 Escrow Properties identified on


                                      -5-
   12
                 Exhibit 1.6(a)(i)-1 (the "General Escrow Properties") and
                 $58,030.00 (the "Stevens Escrow Note") with respect to the
                 Escrow Properties identified on Exhibit 1.6(a)(i)-2 (the
                 "Stevens Escrow Properties"), respectively, dated the Closing
                 Date and payable to you,

                          (ii)    The Company will duly execute and deliver to
                 the Escrow Agent a Mortgage and a Financing Statement as to
                 each of the General Escrow Properties and the Stevens Escrow
                 Properties (collectively, the "Escrow Properties") such
                 Mortgages and Financing Statements being in form and number of
                 original counterparts suitable for recordation in the
                 appropriate public records where each Escrow Property is
                 located,

                          (iii)   The General Partner will pay to the Escrow
                 Agent by bank wire transfer in immediately available funds the
                 amount of $28,532.95, and you shall pay to the Escrow Agent by
                 bank wire transfer in immediately available funds the amount
                 of $133,153.80 as lender,

         to be held subject to and in accordance with the terms of the Escrow
         Agreement. Nothing contained in this Section 1.6(a) is intended to or
         shall be deemed to obligate any of the General Partner, the Company or
         you to perform any of the foregoing in the event of the failure of any
         other party to the Escrow Agreement to perform any of its obligations
         thereunder.

                 (b)      Anything to the contrary contained elsewhere in this
         Agreement notwithstanding, but except for references to such term
         contained in this Section 1.6 or in Exhibits 1.6(a)(i)-1 or
         1.6(a)(i)-2, the term "Oil and Gas Properties" shall be deemed not to
         include any Escrow Property unless and until an Assignment executed
         and delivered by Zilkha to the Escrow Agent at the Closing and
         covering such Escrow Property is released and delivered to the Company
         as provided therein. Upon such delivery, the Escrow Properties
         affected by each such Assignment shall be deemed to be included in the
         Oil and Gas Properties for all purposes hereunder effective as of the
         Closing Date, and the release and delivery to you by the Escrow Agent
         of the Mortgages and the Financing Statements with respect to such
         Escrow Properties shall, and shall be deemed to, constitute
         delivery of such Mortgages and Financing Statements from the Company
         to you, effective as of the Closing Date.

                 (c)      Upon release and delivery by the Escrow Agent to the
         Company of Assignments, and to you of Mortgages and Financing
         Statements, affecting any Escrow


                                      -6-
   13
         Properties, the release of funds out of the account maintained by the
         Escrow Agent on behalf of you as lender pursuant to the Escrow
         Agreement (the "Lender AcCount") by the Escrow Agent to the account
         maintained by the Escrow Agent on behalf of the Company pursuant to
         the Escrow Agreement (the "Purchaser Account") or, on behalf of the
         Company, to the account maintained by the Escrow Agent on behalf of
         Zilkha (the "Zilkha Account") with respect to such Escrow Properties
         shall, to the extent of the funds so released, be deemed to constitute
         payment by you to the Company of the purchase price for the General
         Escrow Note (in the case of the General Escrow Properties) and/or the
         Stevens Escrow Note (in the case of the Stevens Escrow Properties)
         released and delivered by the Escrow Agent to you with respect to such
         Escrow Properties, and upon receiving any such Note or Notes you shall
         surrender such Note or Notes, to the Company in exchange for a single
         Note in the aggregate principal amount outstanding under all of the
         Notes so surrendered, which exchange shall take place on the Release
         Date (as defined below); provided, however, that for purposes of
         calculating the aggregate outstanding principal thereunder, to the
         extent that any amounts deposited by you at Closing into the Lender
         Account remain in the Lender Account under the Escrow Agreement or are
         released and refunded to you, the amount of such funds so retained or
         refunded shall be considered not to have been advanced and therefore
         shall not constitute outstanding principal. Simultaneously with such
         exchange, the Company shall execute and deliver to the Escrow Agent a
         single Note in the principal amount of the amount remaining in the
         Lender Account with respect the General Escrow Properties (if the
         Properties released were General Escrow Properties) and a single Note
         in the principal amount of the amount remaining in the Lender Account
         with respect to the Stevens Escrow Properties (if the Properties
         released were Stevens Escrow Properties) remaining under the Escrow
         Agreement, dated the Closing Date and payable to you, to be held by
         the Escrow Agent in accordance with the terms of the Escrow Agreement.
         The date of any such release of Escrow Properties, funds and related
         documents (the "Release", whether one or more) is herein referred to
         as the "Release Date" (whether one or more).

                 (d)      Anything to the contrary contained herein or in the
         Escrow Agreement notwithstanding, but subject to Section 1.6(e) below,
         the General Partner and the Company hereby agree that they shall
         not execute or deliver any Release Notice (as that term is defined in
         the Escrow Agreement) unless and until the following conditions
         precedent have been met:


                                      -7-
   14
                          (i)     Opinions of Counsel. You shall have received
                 from McAfee & Taft, counsel for the Company, and from Vinson &
                 Elkins, your special counsel, and Sullivan & Worcester, your
                 special Massachusetts counsel, and Richards, Layton & Finger,
                 your special Delaware counsel, opinions dated as of the
                 Release Date in question to the effect of the opinions
                 furnished by them on the Closing Date.

                          (ii)    Warranties and Representations True as of
                 Closing Date. The warranties and representations contained
                 herein or in any exhibit, certificate, or document delivered
                 pursuant hereto shall be true and complete in all material
                 respects on the Release Date in question with the same effect
                 as though made on and as of the Release Date in question,
                 subject to any change hereafter because of any action required
                 by this Agreement and subject to any waiver by you in writing
                 of any such representation or warranty.

                          (iii)   Compliance with Business Covenants. Neither
                 the Company nor the General Partner shall be taking any action
                 or permitting any condition to exist that would be prohibited
                 by Section 6.

                          (iv)    Compliance with this Agreement. The Company
                 and the General Partner shall have performed and complied with
                 all agreements and conditions on its respective part required
                 to be performed or complied with by the Company or the General
                 Partner, as the case may be, pursuant to this Agreement and
                 the Mortgages before or at the Release in question.

                          (v)     No Material Adverse Changes. No event shall
                 have occurred and no condition shall exist that has or might
                 result in a material and adverse change in the Properties,
                 business, prospects, profits, or condition (financial or
                 otherwise) of the Company or the General Partner, or the
                 ability of the Company to perform its obligations under this
                 Agreement, the Note, the Mortgages, the Contract Operating
                 Agreements and the Escrow Agreement, and any other agreement
                 entered into in connection herewith, or the ability of the
                 General Partner to perform its obligations under this
                 Agreement, the Company's Agreement of Limited Partnership,
                 the Contract Operating Agreements and the Escrow Agreement.

                          (vi)    Officers' Certificate. You shall have 
                 received an Officers' Certificate dated the Release


                                      -8-
   15
                 Date in question certifying that the conditions specified in
                 Section 1.6(d) (ii) through (v) have been fulfilled.

                          (vii)   Legality. The Notes, as secured by the Liens
                 created pursuant to the Mortgages and the Financing
                 Statements, and your interest as a limited partner in the
                 Company shall qualify immediately after the Release Date in
                 question as a legal investment for insurance companies under
                 chapter 175, section 63 of the Massachusetts General Laws, and
                 you shall have received such evidence as you may reasonably
                 request to establish compliance with this condition.

                          (viii)  Certain Documents. You shall have received
                 from the Company evidence satisfactory to you of the complete
                 execution and delivery:

                                  (a)      by Zilkha to the Escrow Agent of an
                          Assignment, Bill of Sale and Conveyance substantially
                          in the form of Exhibit 3.1(h)(i) hereto as to each of
                          the Escrow Properties to be released to the Company,

                                  (b)      by the General Partner and the
                          Company of a Contract Operating Agreement
                          substantially in the form of Exhibit 3.1(h)(ii) hereto
                          (the "Alexander Contract Operating Agreement") with
                          respect to those of the Escrow Properties identified
                          in said Exhibit 3.1(h)(ii),

                                  (c)      by Zilkha, the General Partner and
                          the Company of a Contract Operating Agreement
                          substantially in the form of Exhibit 3.1(h)(ii)
                          hereto (the "Zilkha Contract Operating Agreement")
                          with respect to those of the Escrow Properties
                          identified in said Exhibit 3.1(h)(iii),

                                  (d)      the transactions provided in the
                          Escrow Agreement to take place at or prior to the
                          Release shall have been completed in all respects.

                          (ix)    Proceedings Satisfactory. All proceedings
                 taken in connection with the issuance and sale of the Notes
                 and your interest as a limited partner in the Company and
                 the other transactions contemplated hereby and all
                 documents and papers relating thereto shall be satisfactory
                 to you and your special counsel. You and your special counsel
                 shall have received copies of such


                                      -9-
   16
                 closing documents as you or they may reasonably request in
                 connection therewith, all in form and substance satisfactory
                 to you and your special counsel.

                 (e)      The provisions of Section 1.6(d) notwithstanding, as
         long as the requirements of Section 1.6(d) have not been satisfied
         with respect to any Escrow Properties proposed to be released, then
         the General Partner and the Company shall not deliver any notice
         providing for, and shall not cause, the Company to, acquire such
         Escrow Properties, although the Company may, subject to the terms of
         its Agreement of Limited Partnership and the Escrow Agreement, elect
         to acquire such Escrow Properties using its own funds and not those
         held in the Lender Account, or the General Partner may elect to
         acquire such Escrow Properties in its own name, provided in each case
         that the funds being held in the Lender Account with respect to such
         Escrow Properties shall be returned to you upon the release of
         Assignments with respect to such Escrow Properties to the Company or
         the General Partner.

SECTION 2. WARRANTIES AND REPRESENTATIONS

         The Company and the General Partner warrant and represent to you, as
of the date of this Agreement and again as of the Closing Date, that:

         2.1     Organization and Authority.

                 (a)      The Company is a limited partnership duly organized,
         validly existing, and in good standing under the laws of the State of
         Delaware and has all requisite power and authority and all necessary
         Permits to own and operate its Properties now owned or to be acquired
         pursuant to the Purchase Agreement and to conduct its business as
         such business is now and has heretofore been conducted and as
         presently proposed to be conducted. The Company is duly qualified,
         authorized to do business, and in good standing as a foreign limited
         partnership in each jurisdiction where the character of its Properties
         now owned or to be acquired pursuant to the Purchase Agreement or the
         nature of its activities now and as presently proposed to be conducted
         makes such qualification necessary, including, without limitation, the
         States of Oklahoma and Texas. All of the outstanding limited
         partnership interests of the Company are validly issued, were
         issued in compliance with applicable securities laws, and are owned
         beneficially and of record as shown in Exhibit 2.1(a)-1. The Company
         heretofore has delivered to you true and complete copies of the
         Company's Agreement of Limited


                                      -10-
   17
         Partnership, including, without limitation, all amendments thereto.
         The Company's sole general partner is Alexander Energy Corporation, a
         corporation duly organized, validly existing, and in good standing
         under the laws of the State of Oklahoma, which has all requisite power
         and authority and all necessary Permits to own and operate its
         Properties and to conduct its business as such business is now and has
         heretofore been conducted and as presently proposed to be conducted.
         The General Partner is duly qualified, authorized to do business, and
         in good standing as a foreign corporation in each jurisdiction where
         the character of its Properties or the nature of its activities makes
         such qualification necessary, including, without limitation, the State
         of Texas. The Company heretofore has delivered to you true and
         complete copies of the General Partner's articles of incorporation and
         bylaws, including, without limitation, all amendments thereto.

                 (b)      The Company has no Subsidiaries, and is not a partner
         in any Partnerships or a party to any Joint Venture, and has no equity
         interest in any Person.

                 (c)      The Company has all necessary limited partnership
         power and authority to enter into, execute and deliver this Agreement,
         the Notes, the Mortgages, the Financing Statements, the Contract
         Operating Agreements and the Escrow Agreement, and to perform all of
         the obligations to be performed by it hereunder and thereunder. The
         General Partner has all necessary corporate power and authority to
         enter into, execute and deliver as General Partner of the Company this
         Agreement, the Company's Agreement of Limited Partnership, the Notes, 
         the Mortgages, the Financing Statements, the Contract Operating 
         Agreements and the Escrow Agreement. The General Partner has all 
         necessary corporate power and authority to enter into, execute and
         deliver on its own behalf this Agreement, the Company's Agreement of
         Limited Partnership, the Escrow Agreement and the Contract Operating
         Agreements. The execution, delivery, and performance of this
         Agreement, the Company's Agreement of Limited Partnership, the Notes,
         the Mortgages, the Financing Statements, the Contract Operating
         Agreements and the Escrow Agreement have been duly authorized by all
         requisite action on the part of the partners of the Company and the
         officers, directors, and security holders of the General Partner. This
         Agreement constitutes, and each of the Notes, the Mortgages, the
         Contract Operating Agreements and the Escrow Agreement when executed,
         delivered, and (if applicable) paid for in accordance with the terms
         of this Agreement, will constitute, a valid and binding obligation of
         the Company, enforceable in accordance with its terms. This Agreement
         constitutes, and the


                                      -11-
   18
         Company's Agreement of Limited Partnership, the Escrow Agreement and
         the Contract operating Agreements when executed, delivered, and (if
         applicable) paid for in accordance with the terms of this Agreement,
         will constitute, a valid and binding obligation of the General Partner
         in its own behalf, enforceable in accordance with its terms.

         2.2     Business. The Company was organized in 1989 and is engaged
exclusively in the development of, and production of oil and gas and related
hydrocarbons from, the Property to be acquired pursuant to the Purchase
Agreement, and the acquisition, disposition, and operation through others on
its behalf of real and personal property in connection therewith, and from time
to time also may engage in any or all other activities necessary or desirable
and relating to such business including, without limitation, the treatment,
transportation, and marketing of oil and gas and related hydrocarbons or
products derived therefrom.

         2.3     Financial Statements. The Company heretofore has delivered to
you the following financial statements: (i) the unaudited pro forma balance
sheet of the Company dated as of the date of this Agreement, reflecting
consummation of the transactions contemplated by the Purchase Agreement and
this Agreement, (ii) the audited consolidated balance sheets of the General
Partner, the General Partner's partnerships and Joint Ventures, as applicable,
and the General Partner's Subsidiaries as of March 31, 1986, 1987 and 1988, and
the related consolidated statements of operations, changes in shareholders'
equity, and changes in financial position for the years ended March 31, 1986,
1987 and 1988, together with the notes thereto, as certified by Arthur Young &
Co., Certified Public Accountants, and (iii) the unaudited consolidated
balance sheet of the General Partner and its Subsidiaries as of December 31,
1988, and the related consolidated statements of operations, changes in
shareholders' equity, and changes in financial position for the nine-month
period ended December 31, 1988. Such financial statements described in clauses
(ii) and (iii) include the accounts of the General Partner and its Subsidiaries
and their share of the assets, liabilities and operations of the General
Partner's Partnerships and Joint Ventures. All such financial statements
present fairly, in accordance with generally accepted accounting principles
(applied on a consistent basis except as disclosed in the notes thereto), the
financial position of the Company and the consolidated financial position and
consolidated results of operations of the General Partner and its Subsidiaries
as of the dates and for the periods therein set forth. As of the date of the
balance sheets included in the most recent unaudited consolidated financial
statements of the Company and the General Partner delivered to you, which are
dated as of the date of this Agreement and December 31, 1988,


                                      -12-
   19
respectively, none of the Company, the General Partner or the Subsidiaries,
Partnerships, and Joint Ventures of the General Partner had any debts,
liabilities or obligations, whether absolute, accrued, contingent, or
otherwise, that are not fully reflected in such balance sheets or the notes
thereto other than those that, in any one case or in the aggregate, would not
have a material and adverse effect on the business, assets, liabilities,
condition (financial or otherwise), affairs, operations, or prospects of the
Company or the General Partner or such Subsidiary, Partnership or Joint Venture
of the General Partner, or the ability of the Company to perform its
obligations under this Agreement, the Notes, the Mortgages, the Contract
Operating Agreements and the Escrow Agreement and any other agreement entered
into in connection therewith, as of such date, or the ability of the General
Partner to perform its obligations under this Agreement, the Company's
Agreement of Limited Partnership, the Escrow Agreement and the Contract
Operating Agreements or any other agreement entered into in connection
therewith, as of such date. Since December 31, 1988, there has not been any
material and adverse change in the financial condition, results of operations,
business or prospects of the General Partner or any Subsidiary, Partnership or
Joint Venture of the General Partner, and there has been no occurrence or other
event or condition that might reasonably be expected to result in such material
and adverse change after the date hereof.

         2.4     Full Disclosure. None of the financial statements referred to
in Section 2.3, and neither this Agreement nor any writing furnished by or on
behalf of the Company or the General Partner to you pursuant to or in
connection with this Agreement or the negotiation of the issuance of the Notes
contains any untrue statement of a material fact or omits a material fact
necessary to make the statements contained therein or herein not misleading in
light of the circumstances under which they are made; provided, however, that
in the case of projections (if any) prepared jointly by the Company and you,
the Company represents and warrants only the factual information serving as a
basis for such projections and not the assumptions therein. To the knowledge of
the Company and the General Partner, there is no fact or circumstance that the
Company has not disclosed to you in writing and that, in its judgment,
materially and adversely affects, or threatens in the future materially and
adversely to affect, the business, Properties, liabilities, condition
(financial or otherwise), affairs, operations, or prospects of the Company or
the General Partner, or the ability of the Company to perform its obligations
under this Agreement, the Notes, the Mortgages, the Contract Operating
Agreements and the Escrow Agreement and any other agreement entered into in
connection herewith, or the ability of the General Partner to perform its
obligations under this Agreement, the Company's Agreement of Limited
Partnership,


                                      -13-
   20
the Escrow Agreement and the Contract Operating Agreements, in each case other
than economic trends or proposed legislation affecting the oil and gas industry
generally.

         2.5     Pending Litigation. Except as set forth in Exhibit 2.5, there
is no action, suit, proceeding, arbitration, or investigation pending or, to the
best knowledge of the Company or the General Partner, threatened against the
Company or the General Partner, or involving any of their assets, or against
any employee, officer, director, stockholder, or partner thereof in his
capacity as such or relating to his activities with the Company or the General
Partner, that might result in any material and adverse change in the
Properties, business, prospects, profits, or condition (financial or otherwise)
of the Company or the General Partner, or the ability of the Company to perform
its obligations under this Agreement, the Notes, the Mortgages, the Contract
Operating Agreements and the Escrow Agreement and any other agreement entered
into in connection herewith or the ability of the General Partner to perform
its obligations under this Agreement, the Company's Agreement of Limited
Partnership, the Escrow Agreement and the Contract Operating Agreements. Except
as set forth in Exhibit 2.5, based upon the knowledge of the officers and
directors of the General Partner after due investigation, none of the Company
or the General Partner is aware of any fact that might result in or form the
basis for any such action, suit, proceeding, arbitration, or investigation, or
of any action, suit, proceeding, arbitration or investigation affecting the
Properties to be acquired pursuant to the Purchase Agreement. The Company is
not in default with respect to any Legal Requirement.

         2.6     Title to Properties. The Company has good and defensible title
to all Properties used or held for use in its business (other than to
non-producing oil and gas properties, with respect to which the Company has
made such examinations of title, and is satisfied it has such title, as
conforms to best industry practice for such types of properties), and shall
have, upon consummation of the transactions contemplated by the Purchase
Agreement described in Section 2.11, good and defensible title to the Oil and
Gas Properties that (x) entitles the Company to receive from its record title
ownership of each such Oil and Gas Property not less than the interest shown as
the "Net Revenue Interest" or "NRI" therefor shown on Exhibit 1.2(ii)-2 of all
Minerals produced, saved and marketed from such Oil and Gas Properties without
reduction, suspension or termination throughout the productive life of such Oil
and Gas Properties, (y) obligates the Company to bear a percentage of the
costs and expenses relating to operations on and the maintenance and
development of such Oil and Gas Properties and wells associated therewith not
greater than the interest shown as the "Working Interest" or "WI" for each such
Oil and Gas


                                      -14-
   21
Property in Exhibit 1.2(ii)-2 without increase throughout the productive life
of such producing Property, and (z) is otherwise free and clear of all Liens
other than Permitted Liens.

         2.7     Compliance with Laws and Other Instruments. The business and
operations of the Company have been and are being conducted in accordance with
all Legal Requirements to which it is subject, and the Company has not failed
to obtain any Permits, the failure to comply with or obtain which, either
singly or in the aggregate, would have a material and adverse effect upon the
Properties, business, prospects, profits, or condition (financial or otherwise)
of the Company. The execution, delivery, and performance by the Company of any
of the provisions of this Agreement, the Notes, the Mortgages, the Financing
Statements, the Contract Operating Agreements and the Escrow Agreement, or by
the General Partner of any of the provisions of this Agreement, the Company's
Agreement of Limited Partnership, the Escrow Agreement and the Contract
Operating Agreements with or without the giving of notice or the passage of
time or both, will not violate any Legal Requirements to which the Company or
the General Partner is subject, or any provision of the Company's Agreement of
Limited Partnership or the articles of incorporation or bylaws of the General
Partner, or result in the breach of or constitute a default under any Contract
of the Company or the General Partner, or result in the creation or imposition
of any Lien of any nature whatsoever upon the Properties of the Company or, to
the best knowledge of the Company and the General Partner, will cause the
Company to lose the benefit of any material right or privilege it presently
enjoys or cause any Person who normally does a material amount of business with
the Company to discontinue to do so on the same basis.

         2.8     No Defaults. No event has occurred and no condition exists
that, upon the issuance of the Notes, would constitute a Default or an Event
of Default. Each of the Company and the General Partner in all material
respects has performed all obligations required to be performed by each of them
to date by this Agreement or any agreement entered into in connection herewith,
and is not in violation of its articles of incorporation, bylaws, agreement of
limited partnership or other organizational documents, nor is the Company in
default under any Contract to which it is a party or by which it may be bound,
and no event or condition has occurred that, with the giving of notice or
passage of time, or both, would constitute a default by the Company under any
such Contract.

         2.9.    Governmental Consents; Offerinq of Notes. No Permit, and no
declaration to or filing with any Governmental Authority, is required in
connection with the execution, delivery, and performance of this Agreement,
the


                                      -15-
   22
Mortgages, the Financing Statements, the Contract Operating Agreements and the
Escrow Agreement by the Company, or this Agreement, the Company's Agreement of
Limited Partnership, the Escrow Agreement and the Contract Operating Agreements
by the General Partner, or the offer, issuance, sale, or delivery of the Notes.
Neither the Company or the General Partner nor any agent acting on its behalf
has, directly or indirectly, sold or offered for sale, or solicited any offers
to buy, any securities, or otherwise approached or negotiated with any Person
or Persons, so as to subject the offer or sale of the Notes to the provisions
of section 5 of the 1933 Act, or to comparable provisions of any applicable
state securities laws, and, except as expressly provided to the contrary in
this Agreement, the Company agrees that neither it nor the General Partner nor
any agent acting on its behalf will take any action that would subject the
offer or sale of the Notes, to those provisions or that is intended by the
Company to have the effect of preventing or otherwise hindering the sale by you
of the Notes.

         2.10    Taxes. The Company has accurately prepared and duly and timely
filed with the appropriate governmental agencies all federal, state, and local
income, franchise, real and personal property, excise, severance, and other tax
returns and reports required to be filed and has paid all taxes shown or
claimed to be due thereon. The Company has not executed or filed with the
Internal Revenue Service any agreement extending the period for assessment and
collection of any federal tax, nor is the Company a party to any action or
proceeding by any governmental authority for assessment and collection of
taxes, and no claim for assessment and collection of taxes which has been
asserted against the Company remains unpaid.

         2.11    Use of Proceeds. The Company will use the proceeds of the sale
of the Notes to you to discharge its organizational expenses and the expenses
of this transaction, and to acquire from Zilkha certain interests in the Oil
and Gas Properties pursuant to and in accordance with the terms of that certain
Purchase Agreement dated as of April 25, 1989, and entered into by and among
Zilkha, the General Partner and the Company (the "Purchase Agreement"). None of
the transactions contemplated in this Agreement (including, without limitation,
the use of the proceeds from the sale of the Notes) will violate or result in a
violation by the Company or any of its Affiliates of section 7 of the
Securities Exchange Act of 1934, as amended, or any regulations issued pursuant
thereto, including, without limitation, Regulations G (12 C.F.R.  207, as
amended), T (12 C.F.R. 220, as amended), U (12 C.F.R. 221, as amended), and X
(12 C.F.R. 2.24, as amended) of the Board of Governors of the Federal Reserve
System. Neither the Company nor any Affiliate owns or intends to carry or
purchase any "margin security" within the meaning of said Regulation G or U 
or X,


                                      -16-
   23
including, without limitation, margin securities originally issued by it.

         2.12    Insurance Coverage. Exhibit 2.12 contains an accurate list of
the insurance coverage maintained by the Company. Such coverage, in the
Company's and the General Partner's judgment, is adequate for the business
being conducted by the Company and properties owned or leased by the Company or
to be acquired by the Company pursuant to the Purchase Agreement.

         2.13    Brokers and Finders. No Person has or will have any right,
interest, or valid claim against you or the Company because of any agreement or
undertaking by the Company or the General Partner or other Person acting on
behalf of the Company or any of the foregoing for any commission, fee, or other
compensation as a result of this transaction as a finder or broker or in any
similar capacity as a result of any act or omission by the Company or
the General Partner or other Person acting on behalf of the Company. The Company
hereby agrees to indemnify you and hold you harmless from and against any and
all such commissions, fees, or other compensation together with any and all
claims, disputes or other losses or costs (including, without limitation,
reasonable attorneys' fees) arising from agreements or undertakings of the
Company or the General Partner or other Person acting on behalf of the Company.

         2.14    Restrictions on Company and Affiliates. The Company is not a
party to any Contract, or subject to any corporate, partnership, or other
restriction, that materially and adversely affects the business of the Company.
Except as described on Exhibit 2.14, the Company is not a party to any contract
or agreement that restricts the right or ability of such entity to incur
Consolidated Debt other than this Agreement. The Company has not agreed or
consented to cause or permit in the future (upon the happening of a contingency
or otherwise) the Property of the Company, whether now owned or hereafter
acquired, to be subject to a Lien not permitted by Section 6.6.

         2.15    ERISA.

                 (a)      The Company and each ERISA Affiliate have complied in
         all material respects with ERISA and, where applicable, the Code
         regarding each Plan.

                 (b)      Each Plan is, and has been, maintained in
         substantial compliance with ERISA and, where applicable, the Code.

                 (c)      No act, omission or transaction has occurred which
         could result in imposition on the Company or any ERISA Affiliate
         (whether directly or indirectly) of (i)


                                      -17-
   24
         either a civil penalty assessed pursuant to Section 502(c) or (i) of
         ERISA or a tax imposed pursuant to Section 4975 of the Code or (ii)
         breach of fiduciary duty liability damages under Section 409 of ERISA.

                 (d)      No Plan (other than a defined contribution plan) or
         any trust created under any such Plan has been terminated since
         September 2, 1974. No liability to the PBGC (other than for the
         payment of current premiums which are not past due) by the Company or
         any ERISA Affiliate has been or is expected by the Company or any
         ERISA Affiliate to be incurred with respect to any Plan. No ERISA
         Event with respect to any Plan has occurred.

                 (e)      Full payment has been made of all amounts which the
         Company or any ERISA Affiliate is required under the terms of each
         Plan or applicable law to have paid as contributions to such Plan as
         of the date hereof, and no accumulated funding deficiency (as defined
         in Section 302 of ERISA and Section 412 of the Code), whether or not
         waived, exists with respect to any Plan.

                 (f)      The actuarial present value of the benefit
         liabilities under each Plan which is subject to Title IV of ERISA does
         not, as of the end of the General Partner's most recently ended fiscal
         year, exceed the current value of the assets (computed on a plan
         termination basis in accordance with Title IV of ERISA) of such Plan
         allocable to such benefit liabilities. The term "actuarial present
         value of the benefit liabilities" shall have the meaning specified in
         Section 4041 of ERISA.

                 (g)      Neither the Company nor any ERISA Affiliate sponsors,
         maintains, or contributes to an employee welfare benefit plan, as
         defined in Section 3(1) of ERISA, including, without limitation, any
         such plan maintained to provide benefits to former employees of such
         entities, that may not be terminated by the Company or any ERISA
         Affiliate in its sole discretion at any time without any material
         liability.

                 (h)      Neither the Company nor any ERISA Affiliate sponsors,
         maintains or contributes to, or has at any time in the six-year period
         preceding the date of this Agreement sponsored, maintained or
         contributed to, any Multiemployer Plan.

         2.16    Trading With the Enemy Act, Etc.; Holding Company; Investment
Company. Neither this Agreement nor any of the transactions contemplated hereby
is or would be in violation of the Trading With the Enemy Act, as amended, the
International Emergency Economic Powers Act or the Executive


                                      -18-
   25
Orders of the President of the United States issued pursuant to such Act, or
any regulations issued under such Acts or Executive Orders, including, without
limitation, the following regulations of the United States Treasury Department
(31 C.F.R. subtitle B, chapter V, as amended): the Foreign Assets Control
Regulations, the Transactions Control Regulations, the Cuban Assets Control
Regulations, the Foreign Funds Control Regulations, the Iranian Assets Control
Regulations, the Libyan Sanctions Regulations, the Nicaraguan Trade Control
Regulations, and the South African Transactions Regulations; nor will the
proceeds of the sale of the Notes be used by the Company in a manner that would
violate any such Acts, Executive Orders, or regulations. The Company is not a
"utility company" or a "holding company" or a "subsidiary company" or an
"affiliate" of the foregoing, as such terms are defined in the Public Utility
Holding Company Act of 1935, as amended. No determination has been made by the
Securities and Exchange Commission that the Company is subject to a controlling
influence by any such holding company. The Company is not an "investment
company" or a company "controlled" by an "investment company" within the        
meaning of the Investment Company Act of 1940, as amended.

         2.18    Trademarks, Patents, Etc. The Company possesses such
trademarks, tradenames, copyrights, patents, licenses, or rights in any
thereof, as are adequate for the conduct of its business, without known
conflict with the rights of others.

         2.19    Equity Repurchase Obliqations. Except as provided in the
agreements described on Exhibit 2.19, the Company is not a party to any
obligation to purchase any stock, warrants, or other equity interests in itself
or the General Partner or any debt or other security convertible into any of
the foregoing.

         2.20    Local Qualification and Taxes. You shall not be required,
solely on account of the transactions contemplated by this Agreement, the
Notes, the Mortgages, the Financing Statements, the Contract Operating
Agreements and the Escrow Agreement, to do any of the following:

                 (a)      qualify as a foreign corporation or file a
         designation for service of process or file any reports to any
         governmental agency of the State of Oklahoma or Texas or any other
         jurisdiction in which the Company or the General Partner owns
         Properties or transacts business;

                 (b)      pay any taxes, fees, charges, or other levies under 
         the laws of any such jurisdiction; or


                                      -19-
   26
                 (c)      file any returns in respect of any taxes or other 
         matters described in Section 2.20(b).

         2.21    Hazardous Materials. No Hazardous Materials have at any time
been extracted from, transported to or from, or used, generated, stored or
disposed of on, under or about, the Oil and Gas Properties in violation of any
Hazardous Materials Laws or in any manner that could lead to the existence of
any Hazardous Materials Claims.

SECTION 3. CLOSING CONDITIONS

         3.1     Your Conditions. Your obligation to purchase and pay for the
Notes to be delivered to you at the Closing shall be subject to the following
conditions precedent:

                 (a)      Opinions of Counsel. You shall have received from
         McAfee & Taft, counsel for the Company, the closing opinion described
         in Exhibit 3.1(a) and from Vinson & Elkins, your special counsel, and
         Sullivan & Worcester, your special Massachusetts counsel, and
         Richards, Layton & Finger, your special Delaware counsel, opinions in
         form and substance satisfactory to you.

                 (b)      Warranties and Representations True as of Closing
         Date. The warranties and representations contained herein or in any
         exhibit, certificate, or document delivered pursuant hereto shall be
         true and complete in all material respects on the Closing Date with
         the same effect as though made on and as of the Closing, subject to
         any change hereafter because of any action required by this Agreement
         and subject to any waiver by you in writing of any such representation
         or warranty.

                 (c)      Compliance with Business Covenants. Neither the
         Company nor the General Partner shall be taking any action or
         permitting any condition to exist that would be prohibited by Section
         6.

                 (d)      Compliance with this Aqreement. The Company and the
         General Partner shall have performed and complied with all agreements
         and conditions on its respective part required to be performed or
         complied with by the Company or the General Partner, as the case may
         be, pursuant to this Agreement before or at the Closing.

                 (e)      No Material Adverse Changes. No event shall have
         occurred and no condition shall exist that has or might result in a
         material and adverse change in the properties, business, prospects,
         profits, or condition (financial or otherwise) of the Company or the
         General


                                      -20-
   27
         Partner, or the ability of the Company to perform its obligations
         under this Agreement, the Note, the Mortgages, the Contract Operating
         Agreements and the Escrow Agreement, and any other agreement entered
         into in connection herewith, or the ability of the General Partner to
         perform its obligations under this Agreement, the Company's Agreement
         of Limited Partnership, the Escrow Agreement and the Contract
         Operating Agreements.

                 (f)      Officers' Certificate. You shall have received an
         Officers' Certificate dated the Closing Date certifying that the
         conditions specified in Section 3.1(b) through (e) have been
         fulfilled.

                 (g)      Leqality. The Notes, as secured by the Liens created
         pursuant to the Mortgages and the Financing Statements, and your
         interest as a limited partner in the Company shall qualify on the
         Closing Date as a legal investment for insurance companies under
         chapter 175, section 63 of the Massachusetts General Laws, and you
         shall have received such evidence as you may reasonably request to
         establish compliance with this condition.

                 (h)      Certain Documents. You shall have received from the
         Company evidence satisfactory to you of the complete execution and
         delivery:

                          (i)     by Zilkha to the Company of an
                 Assignment,  Bill of Sale and Conveyance substantially in the
                 form of Exhibit 3.1(h)(i) hereto as to each of the Oil and Gas
                 Properties (the "Assignments"),

                          (ii)    by the General Partner and the Company of a
                 Contract Operating Agreement substantially in the form of
                 Exhibit 3.1(h)(ii) hereto (the "Alexander Contract Operating
                 Agreement") with respect to those of the Oil and Gas
                 Properties identified in said Exhibit 3.1(h)(ii),

                          (iii)   by Zilkha, the General Partner and the
                 Company of a Contract Operating Agreement substantially in the
                 form of Exhibit 3.1(h)(iii) hereto (the "Zilkha Contract
                 Operating Agreement") with respect to those of the Oil and Gas
                 Properties identified in said Exhibit 3.1(h)(iii), and the
                 Purchase Agreement in form and substance reviewed by and
                 satisfactory to you,

                          (iv)    by the General Partner, the Company, Zilkha
                 and you of the Escrow Agreement, and the transactions provided
                 therein to take place at or prior to First Closing (as such
                 term is defined in


                                      -21-
   28
                 the Escrow Agreement) shall have been completed in all
                 respects.
 
                 (i)      Proceedings Satisfactory. All proceedings taken in
         connection with the issuance and sale of the Notes and your interest
         as a limited partner in the Company and the other transactions
         contemplated hereby and all documents and papers relating thereto
         shall be satisfactory to you and your special counsel. You and your
         special counsel shall have received copies of such closing documents
         as you or they may reasonably request in connection therewith, all in
         form and substance satisfactory to you and your special counsel.

         3.2     Company's Condition. The Company's obligation to issue and
deliver to you the Notes and to execute and deliver the Mortgages and the
Financing Statements at the Closing shall be subject to the condition precedent
that you shall have performed and complied with all agreements and conditions
on your part required to be performed or complied with by you pursuant to this
Agreement before or at the Closing.

SECTION 4. PURCHASER'S SPECIAL RIGHTS

         4.1     Direct Payment. Notwithstanding anything to the contrary in
this Agreement or the Notes, the Company shall pay all amounts payable with
respect to any Notes held by each holder of Registered Notes (without any
presentment of such Notes and without any notation of such payment being made
thereon) by crediting before 12:00 noon, Boston time, by federal funds bank
wire transfer to the account and in the manner described in Exhibit 4.1, or in
such other manner or to such other address in the continental United States as
may be designated in writing to the Company by such holder at least ten days
prior to the date fixed for such payment, each such payment being accompanied
by sufficient information to identify the source and application thereof. The
holder of any Notes to which this Section 4.1 applies agrees that in the event
it shall sell or transfer any such Notes (a) prior to the delivery of such
Notes, it shall make a notation thereon of all principal, if any, prepaid on
such Notes and will also note thereon the date to which interest has been paid
on such Notes, and (b) it promptly shall notify the Company of the name and
address of the transferee of any Notes so transferred; provided, however, that
failure to comply with the preceding provisions of this sentence shall not
relieve the Company of its obligations to make payments under the Notes as and
when the same become due.

         4.2     Delivery Expenses. If you surrender any Note to the Company
pursuant to this Agreement, the Company shall pay the cost of delivering to or
from your home office from or to


                                      -22-
   29
the Company, insured to your satisfaction, the surrendered Note and any Note
issued in substitution or replacement for the surrendered Note.

         4.3     Issue and Other Taxes. The Company shall pay all taxes in
connection with the issuance and sale of the Notes and the execution and
delivery of the Mortgages and the Financing Statements and the Escrow Agreement
and any transactions contemplated thereby and in connection with any
modification of the Notes, the Mortgages, the Financing Statements, and the
Escrow Agreement, and shall save you harmless without limitation as to time
against any and all liabilities with respect to all such taxes. The obligations
of the Company under this Section 4.3 shall survive the payment or prepayment,
if any, of the Notes and the termination of this Agreement.

SECTION 5. REGISTRATION; SUBSTITUTION OF NOTES; INTEREST

         5.1     Registration of Notes. As provided in Section 1.1, the Notes
issuable under this Agreement shall be in the form of Registered Notes. The
Company shall cause to be kept at its office maintained pursuant to Section 6.3
or at its office in Oklahoma City, Oklahoma, a register for the registration
and transfer of Registered Notes. The names and addresses of the holders of
Registered Notes shall be registered in the register. The Person in whose name
any Registered Note shall be registered shall be deemed and treated as the
owner and holder thereof for all purposes of this Agreement, and the Company
shall not be affected by any notice or knowledge to the contrary, provided that
the Company at all times shall use its best efforts promptly and properly to
record the names and addresses of all holders of Notes whose ownership and
identity is disclosed to the Company in accordance with the provisions of this
Agreement and the Notes.

         5.2     Exchange of Notes. Upon surrender of any Note at the office
of the Company maintained pursuant to Section 6.3 and, if applicable,
compliance with Section 1.3(b), the Company, at the request of the holder
thereof, will execute and deliver, at the Company's expense (except as provided
below), new Notes in exchange therefor in denominations of at least the lesser
of $500,000 or the remaining outstanding principal balance of the Note or Notes
being surrendered in exchange therefor, in an aggregate principal amount equal
to the unpaid principal amount of the surrendered Note or Notes or as
otherwise provided in Section 1.6. Each such new Note shall be payable to such
Person as such holder may request and shall be a Registered Note
substantially in the form of the Note set out in Exhibit 1.1(vi). Each such new
Note shall be dated and bear interest from the date to which interest has been
paid on the surrendered Note or dated the


                                      -23-
   30
date of the surrendered Note if no interest has been paid thereon. The Company
may require payment of a sum sufficient to cover any stamp tax or governmental
charge imposed in respect of any transfer.

         5.3     Replacement of Notes. Upon receipt by the Company of evidence
reasonably. satisfactory to it of the ownership of and the loss, theft,
destruction, or mutilation of any Note and

                 (a)      in the case of loss, theft, or destruction, of
         indemnity reasonably satisfactory to the Company (provided, if you are
         the holder of the Note or the holder of the Note is an insurance
         company having admitted assets in excess of $100,000,000, your or its
         own unsecured agreement of indemnity shall be deemed to be
         satisfactory), or

                 (b)      in the case of mutilation, upon surrender and
         cancellation thereof,

the Company at its own expense will execute and deliver in lieu thereof a new
Note of like tenor, dated and bearing interest from the date to which interest
has been paid on such lost, stolen, destroyed, or mutilated Note or dated the
date of such lost, stolen, destroyed, or mutilated Note if no interest has been
paid thereon. Every new Note issued pursuant to this Section 5.3 in lieu of any
destroyed, lost, stolen, or mutilated Note shall constitute an original
additional contractual obligation of the Company, regardless of whether the
destroyed, lost, stolen, or mutilated Note shall be at any time enforceable by
anyone, and shall be entitled to all the benefits of this Agreement equally and
proportionately with any and all other Notes duly issued hereunder.

         5.4     Interest. Each Note delivered under this Agreement upon
registration of, transfer of, or in exchange for or in lieu of any other Note
shall carry the rights to interest accrued and unpaid, and to accrue, which
were carried by such other Note. Interest on the Notes shall be computed on the
basis ofa 365- or 366-day year, as applicable.

SECTION 6. COMPANY BUSINESS COVENANTS

         The General Partner and the Company covenant that on and after the
date of initial issue of the Notes, as long as any of the Notes are
outstanding:

         6.1     Payment of Taxes and Claims. The Company shall pay, and shall
cause its Subsidiaries, Partnerships and Joint Ventures (if any) to pay, before
they become delinquent:


                                      -24-
   31
                 (a)      all taxes, assessments, and governmental charges or
         levies imposed upon it or its Property, and

                 (b)      all claims or demands of operators, materialmen,
         mechanics, carriers, warehousemen, landlords, and other like Persons
         that, if unpaid, might result in the creation of a Lien upon its
         Property;

provided, however, that any of the foregoing items need not be paid while being
diligently contested in good faith and by appropriate proceedings in the normal
course of business, and so long as adequate book reserves have been established
with respect thereto, and so long as the failure to pay timely any such item
does not materially and adversely affect the business, prospects, profits,
Properties, or condition (financial or otherwise) of the Company or any
Subsidiary, Partnership or Joint Venture of the Company, as the case may be. In
the case of any item of the foregoing description involving in excess of
$100,000, the adequacy of such reserves shall be supported by a certificate of
the independent accountants of the Company delivered to you promptly upon the
failure to pay timely such item.

         6.2     Maintenance of Properties and Existence. The Company shall
and, with respect to clause (d) only, the General Partner shall, and shall
cause its Subsidiaries, Partnerships and Joint Ventures (if any) to:

                 (a)      Property - maintain its Property in good condition
         and make all renewals, replacements, additions, betterments, and
         improvements thereto necessary for the effective and proper conduct of
         its business;

                 (b)      Insurance - maintain, with financially sound and
         reputable insurers, insurance with respect to its Properties and
         business against such casualties and contingencies, of such
         types (including public liability, larceny, embezzlement, or other
         criminal misappropriation insurance) and in such amounts as is
         customary in the case of businesses of established reputations engaged
         in the same or a similar business and similarly situated, and shall
         not cause or permit the alteration of the insurance coverage described
         in Exhibit 2.12 without at least 30 days' prior written notice to you;

                 (c)      Financial Records - keep books of records, and
         accounts in which true and complete entries will be made of all its
         business transactions, and will reflect in its financial statements
         adequate accruals and appropriations to reserves, all in
         accordance with generally accepted accounting principles;


                                      -25-
   32
                 (d)      Agreements; Existence and Rights - (i) except as and
         to the extent that you have given your prior written consent to any
         such amendment, termination or other modification, which consent shall
         not be unreasonably withheld, refrain from amending, terminating or
         otherwise modifying any of the Purchase Agreement, the Contract
         Operating Agreements or the Assignments, and (ii) except as otherwise
         permitted by Sections 6.4 and 6.5, do or cause to be done all things
         necessary to preserve and keep in full force and effect its limited
         partnership, corporate or other (as the case may be) existence,
         rights, and franchises to the extent that the failure to preserve and
         keep the same in full force and effect might materially and adversely
         affect the business, prospects, profits, Properties, or condition
         (financial or otherwise) of the Company and its Subsidiaries,
         Partnerships, and Joint Ventures (if any) taken as a whole, or of the
         General Partner and its Subsidiaries, Partnerships, and Joint Ventures
         (if any) taken as a whole; and

                 (e)      Compliance with Law - not be in violation of any
         laws, ordinances, or governmental rules and regulations to which it is
         subject and not fail to obtain any licenses, permits, franchises, or
         other governmental authorizations necessary to the ownership of its
         Properties or to the conduct of its business, which violation or
         failure to obtain might materially and adversely affect the business,
         prospects, profits, Properties or condition (financial or otherwise)
         of the Company and its Subsidiaries, Partnerships, and Joint Ventures
         (if any) taken as a whole.

                 (f)      Oil, Gas and Mineral Properties - use its best
         efforts to cause its oil, gas and mineral interests, leases, estates
         and other Properties to be equipped, maintained, developed, protected
         against drainage, and operated for the production of hydrocarbons and
         in a good and workmanlike manner as would a prudent operator and in
         accordance with generally accepted oil field practices, applicable
         operating agreements and applicable Legal Requirements.

         6.3     Payment of Notes and Maintenance of Office.

                 (a)      The Company shall, for so long as and to the extent
         that there remains any outstanding principal under all Notes then
         outstanding, pay to you on the first Business Day of each calendar
         month an amount equal to 80.75% of the Net Proceeds for the second
         preceeding calendar month. Such payments shall be applied first to
         interest accrued on the Notes as of and


                                      -26-
   33
         payable on such payment date and second to principal as provided in
         Section 8.1(a).

                 (b)      The Company will maintain an office or agency in the
         continental United States where the Notes may be surrendered upon
         maturity or for prepayment, conversion, or transfer in accordance
         with this Agreement. Such office or agency shall be maintained at the
         address given in Section 11.1(a)(ii) until 10 days after such time as
         the Company shall notify the holders of the Notes of any change of
         location of such office.

         6.4     Covenant to Secure Note. Without limiting the other provisions
hereof, the Company covenants that in the event it shall create or assume
(without regard to whether the provisions of Section 6.7 would be breached) any
Lien upon any of its Property, whether now owned or hereafter acquired, other
than Liens excepted by the provisions of Section 6.6 (unless prior written
consent to the creation or assumption thereof shall have been obtained pursuant
to Section 11.4), it will make or cause to be made effective provision whereby,
as long as any other Consolidated Debt of the Company shall be so secured, the
Notes will be secured with a Lien prior and superior to such Lien. In the event
that the Company shall hereafter acquire any additional oil, gas and mineral
interests, leases, estates or other Properties other than the Subject
Interests, the Company will, unless prior consent to the contrary shall have
been obtained pursuant to Section 11.4, (a) take all actions necessary to
secure immediately payment of all amounts under the Notes by first and prior
lien, mortgage and security interest on such additional Properties and on all
fixtures thereto and all proceeds and production therefrom pursuant to the form
of Mortgage attached hereto as Exhibit 1.2(ii)-1 (subject to additional
requirements of form imposed in the jurisdictions where such additional
Properties are located), and related financing statements which shall be
completed in form and substance satisfactory to you and properly recorded in
all appropriate mortgage, deed, deed of trust and UCC records and (b) promptly
(and in any event within thirty (30) calendar days after the acquisition)
notify you of such acquisition and provide you with a fully executed and
acknowledged original of such Mortgage and related financing statements in
sufficient form and number of original counterparts for recordation with
respect to each such additional Property.

         6.5     Sale of Assets; Merger and Consolidation.

                 (a) Sale of Assets. The Company shall not, and shall not
         permit any of its Subsidiaries, Partnerships, or Joint Ventures to,
         sell, lease, transfer, or otherwise dispose of assets except in the
         ordinary course of business; provided, however, that the


                                      -27-
   34
         foregoing restrictions do not apply to the sale of such assets for a
         cash consideration to a Person other than an Affiliate of the selling
         entity if all of the following conditions are met:

                          (i)     such assets (valued at the greater of fair
                 market value or net book value) do not, together with assets
                 of the Company and all other Subsidiaries, Partnerships, and
                 Joint Ventures of the Company previously disposed of during
                 the 12 months immediately preceding the date of the proposed
                 disposition (other than in the ordinary course of business),
                 exceed a Substantial Part of the consolidated assets of the
                 Company and its Subsidiaries;

                          (ii)    in the fiscal year then most recently ended,
                 the sum of the portions of Consolidated Net Income of the
                 Company (excluding losses) that were contributed during such
                 year by (x) such assets and (y) other assets of the Company,
                 as the case may be, and the Subsidiaries, Partnerships, and
                 Joint Ventures of the Company disposed of since the beginning
                 of such fiscal year (other than in the ordinary course of
                 business), has not constituted a Substantial Part of
                 Consolidated Net Income of the Company for any such year;

                          (iii)   in the opinion of the General Partner and its
                 Board of Directors, the sale is for fair value and is in the
                 best interest of the Company; and

                          (iv)    immediately after the consummation of the
                 transaction, and after giving effect thereto, no Default or
                 Event of Default would exist.

                 (b)      Merger and Consolidation. The Company shall not, and
         shall not permit any of its Subsidiaries, Partnerships, or Joint
         Ventures to, consolidate with or merge into any other Person or permit
         any other Person to consolidate with or merge into it (except that a
         Subsidiary of the Company may consolidate with or merge into another
         Subsidiary of the Company); provided, however, that the foregoing
         restriction does not apply to the merger or consolidation of the
         Company with another legal entity other than the General Partner, if:

                          (i)     the Company is the legal entity that
                 results and survives from such merger or consolidation
                 (the "surviving entity");

                          (ii)    immediately after the consummation of the 
                 proposed merger or consolidation, and after giving


                                      -28-
   35
                 effect thereto, the surviving entity will not have outstanding
                 any Indebtedness or have its Property subject to any Lien not
                 permitted to be incurred by the Company pursuant to this
                 Agreement; and

                          (iii)   immediately after the consummation of the
                 proposed merger or consolidation, and after giving effect
                 thereto, no Default or Event of Default would exist.

         6.6     Liens and Encumbrances. The Company shall not, and shall not
permit any of its Subsidiaries, Partnerships, or Joint Ventures to, cause, or
agree or consent to cause in the future (upon the happening of a contingency or
otherwise), any of the Collateral, whether now owned or hereafter acquired, to
be subject to a Lien except for the following (collectively, the "Permitted
Liens"): (i) lessor's royalties, non-participating royalties, overriding
royalties, reversionary interests, division orders, reversionary interests, and
similar burdens and other Liens the cumulative net effect of all of which do
not operate to materially prevent the Company from receiving the proceeds of
production from the Subject Interests, reduce the Net Revenue Interest of the
Company in any Oil and Gas Property to less than the Net Revenue Interest set
forth therefor on Exhibit 1.2(ii)-2, or obligate the Company to bear costs and
expenses relating to the maintenance, development, and operation of any of the
Oil and Gas Properties in any amount greater than the Working Interest set
forth on Exhibit 1.2(ii)-2, (ii) production sales contracts containing
customary terms and provisions that are terminable without penalty upon no
more than 30 days' prior notice to the purchaser thereunder covering oil, gas
or associated liquefied or gaseous hydrocarbons, (iii) Liens for taxes or
assessments not yet due or delinquent or, if delinquent, that are being
diligently contested in good faith by appropriate proceedings in the normal
course of business by or on behalf of the Company and for which the Company
shall have set up appropriate reserves therefor on its books adequate under
generally accepted accounting principles, (iv) operators', vendors', carriers',
warehousemen's, repairmen's, mechanics', workmen's, materialmen's, construction
or other like Liens arising by operation of law or, in the case of operators'
Liens, under customary oil and gas property operating agreements in the
ordinary course of business or incident to the construction or improvement of
any property in respect of obligations which are not yet due or, if due, which
are being diligently contested in good faith by appropriate proceedings in the
normal course of business by or on behalf of the Company and for which the
Company shall have set up appropriate reserves therefor on its books adequate
under generally accepted accounting principles, (v) rights reserved to or
vested in any municipality or governmental, statutory, or public authority (x)
by the terms of any right, power, franchise,


                                      -29-
   36
grant, license or permit, or by any provision of law, to terminate such right,
power, franchise grant, license or permit or to purchase, condemn, expropriate
or recapture or to designate a purchaser of any of the Oil and Gas Properties,
or (y) to control or regulate any of the Oil and Gas Properties, but only to
the extent that actual or threatened enforcement of any and all matters
described in such clauses (x) and (y) would not have a cumulative material and
adverse effect on the value to or use by the Company of the Oil and Gas
Properties, (vi) the Liens created by the Mortgages and the Financing
Statements, and (vii) any other Liens expressly and specifically waived in
writing by you.

         6.7     Consolidated Debt. The Company shall not, and shall not permit
any Subsidiary, Partnership, or Joint Venture to, create, incur, assume, suffer
to exist, or in any manner become liable in respect of any Consolidated Debt
other than (i) the indebtedness evidenced by the Notes and (ii) short-term
advances from the General Partner, Limited Partner or other party permitted by
the terms of the Company's Agreement of Limited Partnership.

         6.8     Distributions and Investments.

                 (a)      The Company shall not, and shall not permit its
         Subsidiaries, Partnerships, or Joint Ventures to declare, make, or
         incur any liability to make any Distribution in respect of the
         partnership interests of the Company except in accordance with the
         Company's Agreement of Limited Partnership or make or authorize any
         Restricted Investment. Any corporation or other legal entity that
         becomes a Subsidiary, Partnership or Joint Venture hereafter shall be
         deemed to have made, at the time it becomes a Subsidiary, Partnership
         or Joint Venture, all Restricted Investments of such corporation or
         other legal entity existing immediately after it becomes a Subsidiary,
         Partnership or Joint Venture.

                 (b)      The Company shall not, and shall not permit its
         Subsidiaries, Partnerships, or Joint Ventures to, make a Distribution
         consisting of evidences of its Indebtedness or assets (including,
         without limitation, Securities).

         6.9     Guaranties. The Company shall not, and shall not permit its
Subsidiaries, Partnerships, or Joint Ventures to, become or be liable in
respect of any Guaranty except the endorsement in the ordinary course of
business of negotiable instruments for deposit or collection. "Guaranty" by
any Person shall mean all obligations of such Person guaranteeing or in
effect guaranteeing any Indebtedness, dividend, or other obligation of any
other Person (the "primary obligor") in any manner, whether directly or
indirectly, including.


                                      -30-
   37
obligations incurred through an agreement contingent or otherwise, by such
Person:

                 (i)      to purchase such Consolidated Debt or obligation or
         any Property or assets constituting security therefor;

                 (ii)     to advance or supply funds (x) for the purchase or
         payment of such Indebtedness or obligation, or (y) to maintain working
         capital or other balance sheet condition or any income statement
         condition or otherwise to advance or make available funds for the
         purchase or payment of such Indebtedness or obligation;

                 (iii)    to lease Property or to purchase Securities or other
         Property or services primarily for the purpose of assuring the owner
         of such Indebtedness or obligation of the ability of the primary
         obligor to make payment of the Indebtedness or obligation; or

                 (iv)     otherwise to assure the owner of the Indebtedness or
         obligation of the primary obligor against loss in respect thereof.

         6.10    ERISA Information and Compliance.

                 (a)      The Company will promptly furnish and will cause its
         Subsidiaries, Partnerships and Joint Ventures and any ERISA Affiliate
         to promptly furnish to you (i) promptly after the filing thereof with
         the United States Secretary of Labor, the Internal Revenue Service or
         the PBGC, copies of each annual and other report with respect to each
         Plan or any trust created thereunder, (ii) immediately upon becoming
         aware of the occurrence of any ERISA Event or of any "prohibited
         transaction," as described in Section 406 of ERISA or in Section 4975
         of the Code, in connection with any Plan or any trust created
         thereunder, a written notice signed by the President or the principal
         financial officer of the Company or the appropriate Subsidiary,
         Partnership or Joint Venture of the Company or the ERISA Affiliate, as
         the case may be, specifying the nature thereof, what action the
         Company or the appropriate Subsidiary, Partnership or Joint Venture of
         the Company or the ERISA Affiliate, as the case may be, is taking or
         proposes to take with respect thereto, and, when known, any action
         taken or proposed by the Internal Revenue Service, the Department of
         Labor or the PBGC with respect thereto, and (iii) immediately upon
         receipt thereof, copies of any notice of the PBGC's intention to
         terminate or to have a trustee appointed to administer any Plan. With
         respect to each Plan (other than a Multiemployer Plan), the Company
         will, and will cause its Subsidiaries, Partnerships and Joint Ventures
         and each ERISA Affiliate


                                      -31-
   38
         to, (i) satisfy in full and in a timely manner, without incurring any
         late payment or underpayment charge or penalty and without giving rise
         to any lien, all of the contribution and funding requirements of
         Section 412 of the Code (determined without regard to subsections (d),
         (e), (f) and (k) thereof) and of Section 302 of ERISA (determined
         without regard to Sections 303, 304 and 306 of ERISA), and (ii) pay,
         or cause to be paid, to the PBGC in a timely manner, without incurring
         any late payment or underpayment charge or penalty, all premiums
         required pursuant to Sections 4006 and 4007 of ERISA.

                 (b)      The Company and its Subsidiaries, Partnerships and
         Joint Ventures will not at any time:

                          (i)     engage in, or permit any ERISA Affiliate to
                 engage in, any transaction in connection with which the
                 Company or any Subsidiary, Partnership or Joint Venture of the
                 Company or any ERISA Affiliate could be subjected to either a
                 civil penalty assessed pursuant to Section 502(c) or (i) of
                 ERISA or a tax imposed by Section 4975 of the Code;

                          (ii)    terminate, or permit any ERISA Affiliate to
                 terminate, any Plan in a manner, or take any other action with
                 respect to any Plan, which could result in any liability of
                 the Company or any Subsidiary, Partnership or Joint Venture of
                 the Company or any ERISA Affiliate to the PBGC;

                          (iii)   fail to make, or permit any ERISA Affiliate
                 to fail to make, full payment when due of all amounts which,
                 under the provisions of any Plan or applicable law, the
                 Company or any Subsidiary, Partnership or Joint Venture of the
                 Company or any ERISA Affiliate is required to pay as
                 contributions thereto;

                          (iv)    permit to exist, or allow any ERISA Affiliate
                 to permit to exist, any accumulated funding deficiency within
                 the meaning of Section 302 of ERISA or section 412 of the
                 Code, whether or not waived, with respect to any Plan;

                          (v)     permit, or allow any ERISA Affiliate to
                 permit, the actuarial present value of the benefit liabilities
                 under any Plan. maintained by the Company or any. Subsidiary,
                 Partnership or Joint Venture of the Company or any ERISA
                 Affiliate which is regulated under Title IV or ERISA to
                 exceed the current value of the assets (computed on a plan
                 termination basis in accordance with Title IV of ERISA) of
                 such Plan allocable to such benefit


                                      -32-
   39
                 liabilities (the term "actuarial present value of the benefit
                 liabilities" shall have the meaning specified in Section 4041
                 of ERISA);

                          (vi)   contribute to or assume an obligation to
                 contribute to or assume an obligation to contribute to, any
                 Multiemployer Plan;

                          (vii)   acquire, or permit any ERISA Affiliate to
                 acquire, an interest in any Person that causes such Person to
                 become an ERISA Affiliate with respect to the Company or any
                 Subsidiary, Partnership or Joint Venture of the Company or
                 with respect to any ERISA Affiliate if such Person sponsors,
                 maintains or contributes to, or at any time in the six-year
                 period preceding such acquisition has sponsored, maintained,
                 or contributed to, (1) any Multiemployer Plan, or (2) any
                 other Plan that is subject to Title IV of ERISA under which
                 the actuarial present value of the benefit liabilities under
                 such Plan exceeds the current value of the assets (computed on
                 a plan termination basis in accordance with Title IV of ERISA)
                 of such Plan allocable to such benefit liabilities;

                          (viii)  incur, or permit any ERISA Affiliate to
                 incur, a liability to or on account of a Plan under Sections
                 515, 4062, 4063, 4064, 4201 or 4204 of ERISA; or

                          (ix)    contribute to or assume an obligation to
                 contribute to, or permit any ERISA Affiliate to contribute to
                 or assume an obligation to contribute to, any employee welfare
                 benefit plan, as defined in Section 3(1) of ERISA, including,
                 without limitation, any such plan maintained to provide
                 benefits to former employees of such entities, that may not be
                 terminated by such entities in' their sole discretion at any
                 time without any material liability.

         6.11    Transactions with Affiliates.  The Company shall not, and shall
not permit any of its Subsidiaries, Partnerships, or Joint Ventures to enter
into any transaction, including, without limitation, the purchase, sale, or
exchange of Property or the rendering of any service, with any Affiliate
thereof except in the ordinary course of and pursuant to the reasonable
requirements of the Company's or such Subsidiary's, partnership's, or Joint
Venture's business and upon fair and reasonable terms no less favorable to
the Company or such Subsidiary, Partnership, or Joint Venture than would obtain
in a comparable arm's-length transaction with a Person not an Affiliate.


                                      -33-
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         6.12    Sale or Discount of Receivables. Except in connection with a
sale of assets permitted by Section 6.5, the Company shall not, and shall not
permit any of its Subsidiaries, Partnerships, or Joint Ventures to, discount or
sell any of its notes receivable or accounts receivable.

         6.13    Business. The Company shall not, and shall not permit any of
its Subsidiaries, Partnerships, or Joint Ventures to, engage in any business
other than the business described for such Person in Section 2.2.

         6.14    Acquisition of Notes. Without creating any right to purchase
or to prepay any Note except as otherwise expressly provided herein, each of
the Company and the General Partner shall not, and shall not permit any of
their respective Subsidiaries, Partnerships, or Joint Ventures to, directly or
indirectly, acquire or make any offer to acquire any Notes unless the Company
or the General Partner or such Subsidiary, Partnership, or Joint Venture of the
Company or the General Partner has offered to acquire Notes pro rata from all
holders of the Notes and upon the same terms. In case the Company acquires any
Notes, such Notes shall thereafter be cancelled and no Notes shall be issued in
substitution therefor.

         6.15    Certain Registrations or Approvals. If the Notes or any of
them requires declaration or registration with or approval of any Governmental
Authority (other than registration under the Securities Act or state securities
or blue sky laws under Section 12) the Company will at its sole expense take
all requisite action in connection with such declaration and will use its best
efforts to cause such Notes to be duly registered or approved as may be
required.

         6.16    Oil and Gas Business and Properties.

                 (a)      The Company shall, and shall cause each of its
         Subsidiaries, Partnerships, and Joint Ventures, if any, to (i) pay in
         the ordinary course of business all fees, overrides and landholder
         royalties in respect of oil and gas producing properties when due
         except for suspense funds being disputed in good faith, (ii) insure
         the prompt production, transportation, storage, processing or
         marketing of petroleum, natural gas, condensate or other minerals from
         its oil, gas and mineral interests, leases, estates and other
         Properties, and (iii) cause all of its oil, gas and mineral interests,
         leases, estates and other Properties to remain in full force and
         effect as would a prudent operator in accordance with generally
         accepted oil field practices, applicable operating agreements and
         applicable Legal Requirements. As soon as practicable after the
         release, expiration, termination or other


                                      -34-
   41
         cessation of any Subject Interest constituting Collateral and in no
         event later than 30 calendar days thereafter, the Company shall
         deliver to you an Officer's Certificate certifying as to whether all
         of the provisions of clause 8.2(a) remain satisfied after such
         Subject Interest is no longer in full force and effect, the
         satisfaction of such provisions to be determined based on the latest
         engineering report delivered to you pursuant to Section 7.1(d) and as
         of the valuation date set forth in said report (the "Valuation Date")
         with the Present Value of Estimated Future Net Revenues attributable
         to such Subject Interest deleted and given no effect. The Company
         shall, and shall cause each of its Subsidiaries, Partnerships, or Joint
         Ventures, if any, to use its best efforts to promptly sell or dispose
         of all petroleum, natural gas, condensate or other minerals produced
         by it or received by it as a working or nonworking interest payment on
         terms comparable in the area between unrelated parties.  To the extent
         the obligations set forth in Section 6.2(f) and this Section 6.16 are
         performed by a third party, the Company shall use its best efforts to
         insure that such third party discharges such obligations in accordance
         with the requirements applicable thereto for a discharge of such
         obligations by the Company.

                 (b)      The Company shall not permit the extraction from the
         transportation to or from, or the use, generation, storage or disposal
         on, under or about, the Oil and Gas Properties of any Hazardous
         Materials in violation of any Hazardous Materials Laws or in any
         manner that could lead to any Hazardous Materials Claims.

         6.17    Indemnity With Respect to Certain Representations and 
Warranties. 

                 (a)      The General Partner and the Company hereby agree to
         indemnify you and hold you harmless from and against any all losses in
         value, increases in burdens or encumbrances, and other costs,
         expenses, claims, liabilities, damages, obligations, penalties, fines,
         judgments and assessments (including but not limited to reasonable
         attorney's fees) to the extent arising out of or resulting from any
         fact, matter or circumstance that constitutes a breach by the General
         Partner and the Company of their representations and warranties set
         forth in Section 2.6 of this Agreement or Section 4.02(a)(i) of the
         Mortgages; provided, however, that the aggregate of all such breaches
         of said Sections 2.6 or 4.02(a)(i), together with the aggregate of
         all breaches or other failures to perform of any and all covenants
         and agreements set forth in Section 6.1, 6.2, 6.3(b),


                                      -35-
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         6.4 through 6.10 or 6.12 through 6.16, causes the aggregate value of
         the First Lien Collateral to be less than 95 percent of what it would
         have been in the absence of such breaches or failures to perform, and
         provided further that the foregoing indemnity shall not apply with
         respect to any Oil and Gas Property as to which a title opinion
         meeting the requirements of paragraph (b) immediately below has been
         furnished or is not required to be furnished in accordance with such
         paragraph (b).

                 (b)      As soon as practicable following the Closing Date (in
         the case of the Oil and Gas Properties), or the applicable Release
         Date (in the case of any Escrow Property released to the Company
         pursuant to the Escrow Agreement) but in any event within 60 days
         thereafter, the Company shall deliver or cause to be delivered to you
         from special title counsel to the Company reasonably satisfactory to
         you, dated as of the Closing or the Release, as the case may be,
         based on an examination of the record covering a period from the
         sovereignty of the soil (in the case of Properties in Texas) or
         inception of title (in the case of Properties in Oklahoma) to such
         date and addressed to the Company and you, to the effect that (1) the
         Company has acquired good and defensible title to those of the Oil and
         Gas Properties that are specified in Exhibit 1.2(ii)-2 as being
         subject to the requirements of this Section 6.17 that (x) entitles the
         Company to receive from its record title ownership of each such Oil
         and Gas Property not less than the interest shown as the "Net Revenue
         Interest" or "NRI" therefor shown on Exhibit 1.2(ii)-2 of all Minerals
         produced, saved and marketed from such Oil and Gas Properties without
         reduction, suspension or termination throughout the productive life of
         such Oil and Gas Properties based on facts, interests and conditions
         in existence as of the date hereof whether known or unknown, (y)
         obligates the Company to bear a percentage of the costs and expenses
         relating to operations on and the maintenance and development of such
         Oil and Gas Properties and wells associated therewith not greater than
         the interest shown as the "Working Interest" or "WI" for each such Oil
         and Gas Property in Exhibit 1.2(ii)-2 without increase throughout the
         productive life of such producing property based on facts, interests
         and conditions in existence as of the Closing, whether known or
         unknown, and (z) is otherwise free and clear of all Liens other than
         the Permitted Liens, and ,(2) the Liens purported to be created in 
         your favor by the Mortgages and the Financing Statements constitute
         valid, perfected and enforceable first priority, security interests;
         mortgages and liens, in each case subject to no prior or superior
         security interest, mortgage, lien or encumbrance except for the
         Permitted Liens. In


                                      -36-
   43
         rendering such opinion, such special title counsel may rely, as to
         all matters concerning the enforceability of the Mortgages, on the
         opinion rendered by McAfee & Taft as described in Section 3.1(a) or
         1.6(d)(i), as the case may be.

                 (c)      Within 20 days following your receipt of any title
         opinion pursuant to paragraph (b) immediately above, you shall notify
         the Company in writing as to whether you consider such opinion to meet
         the standards set forth in said paragraph (b). Failure to give such
         notice shall be deemed to constitute your agreement that such title
         opinion so satisfies such standards. If you raise any such objections
         within said 20 day period, the Company and you shall consult in good
         faith to resolve any disagreements over whether such title opinion
         meets the standards set forth in paragraph (b), or whether and to what
         extent any curative requirements set forth in said title opinion may
         be satisfied. At any time that either party desires, such party may by
         giving written notice to the other elect to refer the question of
         whether the requirements of paragraph (b) have been satisfied by such
         title opinion to Mr. R. Clark Musser, of the firm of Musser, Bunch,
         Robinson & Hirsch, 100 Park Avenue Building, Suite 400, Oklahoma City,
         Oklahoma 73102, or to such title attorney as shall be mutually
         agreeable to the Company and you, which attorney may retain such
         consultants as he reasonably deems advisable to resolve the questions
         so referred to him, and all of the reasonable fees and expenses of
         such attorney and his consultants shall be borne in equal halves by
         each of the General Partner and you. The conclusions of such attorney
         with respect to the issues so referred to him shall be final and
         binding on the parties for purposes of this Section 6.17, and may be
         confirmed in and enforced by any court of competent jurisdiction.

SECTION 7. INFORMATION AS TO COMPANY

         7.1     Financial and Business Information. The Company will deliver,
or will cause to be delivered, to you, if at the time you or your nominee holds
any Notes (or if you are obligated to purchase any Notes), and to each other
Institutional Holder of at least 20% of the then outstanding Notes:

                 (a)      Quarterly Statements - as soon as practicable after
         the end of each of the first three quarterly fiscal periods in each
         fiscal year ending after the Closing of the Company and in any event
         within 60 days thereafter, duplicate copies of:


                                      -37-
   44
                          (i)     the unaudited consolidated balance sheets of
                 the Company and its consolidated Subsidiaries, if any, as
                 at the end of such quarter, and

                          (ii)    the unaudited consolidated statements of
                 operations and of retained earnings of the Company and its
                 consolidated Subsidiaries, if any, for such quarter and (in
                 the case of the second and third quarters) for the portion of
                 the fiscal year ending with such quarter,

         setting forth in each case in comparative form the figures for the
         corresponding periods in the previous fiscal year, all in reasonable
         detail and accompanied by a certificate of a principal financial
         officer of the General Partner certifying that such financial
         statements fairly present the financial condition and the results of
         operations and changes in financial position (all consolidated, if
         applicable) of the companies being reported upon in accordance with
         generally accepted accounting principles consistently applied except
         to the extent stated therein and subject to changes resulting from
         year-end adjustments;

                 (b)      Annual Statements - as soon as practicable after the
         end of each fiscal year of the Company and in any event within 120
         days thereafter, duplicate copies of:

                          (i)     the audited consolidated balance sheets of
                 the Company and its consolidated Subsidiaries, if any, at the
                 end of such year, and

                          (ii)    the audited consolidated statements of
                 operations and of retained earnings of the Company and its
                 consolidated Subsidiaries, if any, for such year,

         setting forth, in the case of the consolidated statements, in
         comparative form, the figures for the previous year, all in reasonable
         detail and, in the case of the consolidated statements, accompanied by
         duplicate copies of an opinion thereon of the accountants named in
         Section 2.3 or other independent certified public accountants of
         recognized national standing selected by the Company and satisfactory
         to you, which opinion shall state that, except as expressly set forth
         in said opinion, such financial statements fairly present the
         financial condition and the results of operations and changes in
         financial position (all consolidated, if applicable) of the
         companies being reported upon in accordance with generally accepted
         accounting principles consistently applied (except for changes in
         application in which such accountants concur) and that the


                                      -38-
   45
         examination of such accountants in connection with such financial
         statements has been made in accordance with generally accepted
         auditing standards and, accordingly, included such tests of the
         accounting records and such other auditing procedures as they
         considered necessary in the circumstances;

                 (c)      Audit Reports - promptly upon receipt thereof, one
         copy of each other report submitted to the Company or the General
         Partner, as the case may be, or any Subsidiary of the Company by
         independent accountants in connection with any annual, interim or
         special audit made by them of the books of the Company or any of its
         Subsidiaries, Partnerships, or Joint Ventures;

                 (d)      Reserve Report - within 60 days following December 31
         of each year, annual reports on oil and gas reserves owned by the
         Company or any of its Subsidiaries, if any, prepared by Edinger, Inc.,
         or a nationally recognized, independent petroleum engineering
         consultant familiar with the areas in which such reserves are located
         and satisfactory to you, all in reasonable detail and satisfactory in
         scope to you, which reports shall set forth the Present Value of
         Estimated Future Net Revenues from the Subject Interests;

                 (e)      Notice of Default or Event of Default - as soon as
         practicable, but in any event within five Business Days, after
         becoming aware of the existence of any condition or event which
         constitutes a Default or an Event of Default, a written notice
         specifying the nature and period of existence thereof and what action
         the Company or the General Partner, as applicable, is taking or
         proposes to take with respect thereto;

                 (f)      Notice of Claimed Default - as soon as practicable,
         but in any event within five Business Days, after becoming aware that
         the holder of any Note has given notice or taken any other action that
         the Company or the General Partner has knowledge of with respect to a
         claimed Default or Event of Default, a written notice specifying the
         notice given or action taken by such holder and the nature of the
         claimed Default or Event of Default and what action the Company or the
         General Partner, as applicable, is taking or proposes to take with
         respect thereto;

                 (g)      Requested Information - with reasonable
         promptness, such other data and information as from time to time may
         be reasonably requested by you;

                 (h)      Bankruptcy Event - immediately following its 
         occurrence, an event of the type described in


                                      -39-
   46
         Section 9.1(g), (h), or (i) with respect to the Company or
         any Subsidiary, Partnership, or Joint Venture of the Company;

                 (i)      Net Proceeds - as soon as practicable after the end
         of each fiscal year of the Company, and in any event within 120 days
         thereafter, a special purpose report, prepared by the same accountants
         whose opinion is furnished pursuant to Section 7.1(b) above,
         expressing their opinion as to the computation during the preceding
         fiscal year of Net Proceeds prepared on a cash basis. Such computation
         shall include a summary itemization, by type and/or classification, of
         the total revenues, costs and expenses used in calculating Net
         Proceeds; and

                 (j)      Changes in Reserves - within 30 days following
         discovery by Company that an event has occurred which may, in the
         reasonable opinion of the Company, lead to a reduction in the Present
         Value of Estimated Future Net Revenues from the Subject Interests of
         more than 10 percent, excluding a reduction as a result of normal
         production or due to a decrease in the price of oil or gas, notice to
         you of such discovery, and the Company will make available to you all
         of its records relating thereto and additional engineering work
         relating to the affected Properties and any estimates and reports
         which the Company has internally prepared or which have been prepared
         for the Company.

         7.2     Officers' Certificates. Each set of financial statements
delivered to you or any other Institutional Holder of the Notes pursuant to
Section 7.1(a) or (b) will be accompanied by an Officers' Certificate setting
forth:

                 (a)      Covenant Compliance - the information (including
         detailed calculations) required in order to establish whether the
         Company was in compliance with the requirements of Section 6 during
         the period covered by the income statement then being furnished; and

                 (b)      Event of Default - that the signers have reviewed the
         relevant terms of this Agreement and have made, or caused to be made,
         under their supervision, a review of the transactions and conditions
         of the Company, and the Subsidiaries, Partnerships, and Joint Ventures
         of the Company from the beginning of the accounting period covered by
         the income statements being delivered therewith to the date of the
         certificate and that such review has not disclosed the existence
         during such period of any condition or event which cohstitutes
         a Default or an Event of Default or, if any such condition or event
         existed or exists, specifying the nature and period of existence
         thereof and what action


                                      -40-
   47
         the Company or the General Partner, as applicable, has taken or 
         proposes to take with respect thereto.

         7.3     Accountants' Certificate.  Each set of annual financial
statements delivered pursuant to Section 7.1(b) will be accompanied by
a certificate of the accountants who certify such financial statements, stating
that they have reviewed this Agreement and stating further whether, in making
their audit, such accountants have become aware of any condition or event that
then constitutes a Default or an Event of Default and, if any such condition or
event then exists, specifying the nature and period of existence thereof.

         7.4     Inspection. The Company shall permit, and shall cause each
Subsidiary, Partnership, and Joint Venture of the Company to permit, any of
your representatives, while you or your nominee holds any Note, or the
representatives of any other Institutional Holder that holds at least 20% of
the aggregate outstanding principal amount of the Notes, at your or such
holder's expense, to visit and inspect any of the Properties of the Company or
any Subsidiary, Partnership, or Joint Venture of the Company to examine all
their books of account, records, reports, and other papers (including but not
limited to all records regarding all cores, cuttings, well logs, and other
geological, well and production data secured from operations on the Subject
Interests), to make copies and extracts therefrom, and to discuss their
respective affairs, finances, and accounts with their respective officers and
employees (and by this provision the Company authorizes said accountants to
discuss the finances and affairs of the Company, and all Subsidiaries,
Partnerships, and Joint Ventures of the Company) all at such reasonable times
and as often as may be reasonably requested; provided, however, that you or
such holder will keep confidential all information obtained in connection with
any such inspection that the Company designates to you and such holder in
writing as confidential prior to your disclosure, except that you or such
holder may reveal such information (a) pursuant to the receipt of any legal
process that appears valid on its face, (b) pursuant to order or request of any
governmental or industry regulatory body having or acquiring jurisdiction over
you or such holder, as applicable, (c) that has become public through no action
of you or such holder, as applicable, or (d) to your or such holder's
accountants, attorneys, or other advisers who have been instructed to be bound
by such restrictions.

         7.5     Exceptions to Statements. If you shall take exception to any
item or items included in any statements rendered by the Company,
including but not limited to those required pursuant to Section 8.1(c), or to
the computations of Net Proceeds, you shall have the right but not the
obligation to notify the Company in writing, setting forth in


                                      -41-
   48
such notice the specific charges complained of and to which exception is taken
or the specific credits which should have been made and allowed, and with
respect to such complaints and exceptions as you and the Company shall agree
are justified, adjustment shall be made; provided, however, that, with respect
to such complaints and exceptions as the Company shall not agree are justified,
you shall nonetheless have all rights and remedies available to you under this
Agreement or otherwise at law or in equity, and provided further that neither
any course of dealing on the part of any holder of the Notes nor any failure or
delay of any holder of the Notes to take exception to any such item or items
shall operate as a waiver of a right of any holder of the Notes to take such
exception.

SECTION 8. PREPAYMENT OF NOTES

         8.1     Required Prepayments.

                 (a)      The Company covenants and agrees that, in addition to
         the payments of principal of the Notes to be made on the expressed
         maturity date thereof, the Company shall prepay principal on the Notes
         on the first Business Day of each calendar month in an amount equal to
         (1) 80.75% of the Net Proceeds for the second preceding calendar
         month, minus (2) interest accrued on the Notes as of and payable on
         such prepayment date. The Company shall base such monthly payments on
         the actual Net Proceeds for the second preceding month.

                 (b)      On or before the date of payment of the amount set
         forth in Section 8.1(a), the Company shall furnish to you a detailed
         statement clearly reflecting the Net Proceeds as of the close of
         business on the last day of the second preceding calendar month.
         Nothing contained herein is intended to render, or shall be deemed to
         have the effect of rendering, you personally responsible for payment
         of any part of the costs and expenses charged against Net Proceeds or
         for any of the liabilities incurred in connection with developing,
         exploring, equipping and operating the Oil and Gas Properties.

         8.2     Additional Required Prepayments; Additional Security. In the
event that the outstanding principal amount of all Notes then outstanding plus
all interest accrued and unpaid thereon through the Valuation Date
(collectively, the "Senior Secured Debt") is greater than (1) the Present
Value of Estimated Future Net Revenues from the Subject. Interests
constituting Collateral determined as of the Valuation Date from the most
recent report prepared and delivered pursuant to Section 7.1(d), or (2) the
Present Value of Estimated Future Net Revenues from the Subject


                                      -42-
   49
Interests constituting Collateral determined in accordance with Section 6.16
at the time any Subject Interest constituting Collateral terminates, expires or
otherwise becomes no longer in full force and effect, the Company shall
promptly notify you of same and, at your option and within 30 calendar days
after your request, prepay such a portion of the outstanding principal of all
Notes then outstanding as you shall direct in your sole discretion, together
with all interest accrued and unpaid on such portion, and/or provide you with
such additional collateral of such type and quality (including, without
limitation, the quality of the title thereto and the first priority of your
Lien thereon as you shall require in your sole discretion) and of such value
(as you shall determine in your sole discretion) and shall eliminate the
existence of the foregoing condition. The Company shall provide you with such
satisfactory evidence of the quality of the additional collateral as you shall
request, including without limitation an opinion of counsel satisfactory to
you and in form, scope and substance satisfactory to you, that the Liens
created in your favor with respect to such additional collateral constitute
valid, perfected and enforceable first prior security interest, mortgages,
liens and encumbrances subject to no prior security interests, mortgage,
encumbrance or other Lien except as you shall have specified in writing to be
satisfactory to you in your sole discretion. The portion of this amount applied
to the principal outstanding under any given Note shall be in the same
proportion that the principal evidenced by such Note bears to the aggregate of
the outstanding principal of all Notes then outstanding.

         8.3     No Prepayment or Call. Except as provided in Sections 1.1 and
8.1 and 8.2, the Company shall have no right to prepay or to acquire any Note.

SECTION 9. EVENTS OF DEFAULT

         9.1     Nature of Events. An "Event of Default" shall exist if any of
the following occurs and is continuing:

                 (a)      Principal and Interest Payments - (i) the Company
         fails to make any required payment or prepayment of principal of any
         Note when due (whether such payment or pre-payment falls due by reason
         of maturity of any Note, acceleration, the provisions of Section 8.1
         or 8.2, or otherwise), or (ii) the Company fails at any time after
         October 1, 1989 to pay any and all accrued but unpaid interest on
         any Note prior to the expiration of one month following the date such
         interest payment is due to the extent (in the case of this clause
         (ii) only) that the 80.75% of Net Proceeds payable to you on such date
         under Section 6.3(a) is insufficient to cover such accrued but unpaid
         interest;


                                      -43-
   50
                 (b)      Security Invalidity - the Mortgages or the Financing
         Statements or any Lien pursuant thereto shall become, or be
         determined to be, invalid or void, in whole or in part, provided that
         the Subject Interests to which such invalid or void Mortgages or
         Financing Statements or Lien relate constitute in the aggregate more
         than $5,000 in value;

                 (c)      Particular Covenant Defaults - the Company or the
         General Partner, as applicable, or any Subsidiary, Partnership, Joint
         Venture, or Affiliate of the Company or the General Partner, as
         applicable, fails to perform or observe any covenant contained in
         Sections 6.3 through 6.9, 6.12 through 6.16, or Section 7.1(d), (e),
         or (f), provided that, in the case of Section 6.4, 6.5, 6.6, 6.12, and
         6.13 of this Agreement, the aggregate of all such breaches or failures
         to perform, together with the aggregate of all breaches or other
         failures to perform of any and all covenants and agreements set forth
         in Sections 6.1, 6.2(a), 6.2(b) or 6.2(f) of this Agreement, or
         Sections 4.02(a)(i), (ii) or (iii), 4.03 or 9.01 of the Mortgages, and
         all breaches of representations and warranties of the General Partner
         or the Company set forth in Section 2.6 of this Agreement or Section
         4.02(a)(i) of the Mortgages, causes the aggregate value of the First
         Lien Collateral to be less than 95 percent of what it would have been
         in the absence of such breaches or failures to perform, and provided
         further that in the case of Sections 6.3(b), 6.7, 6.8, 6.9, 6.15, and
         7.1(d), (e), and (f), such breaches or failures to perform constitute
         a material breach or failure to perform the covenant or agreement in
         question.

                 (d)      Other Defaults - the Company or the General Partner,
         as applicable, or any Subsidiary, Partnership, Joint Venture, or
         Affiliate of the Company or the General Partner, as applicable fails
         to perform, observe, or comply with any other provision or obligation
         of this Agreement, the Notes, or the Mortgages or of any other
         instrument or documents securing the payment or performance of such
         obligations, and such failure continues for more than 30 days after
         such failure shall first become known to any officer of the General
         Partner or any Subsidiary of the Company or the General Partner,
         provided, however, that, in the case of Sections 6.1, 6.2(a), 6.2(b)
         and 6.2(f), of this Agreement, and Sections 4.02(a)(i), (ii) and
         (iii), 4.03 and 9.01 of the Mortgages, the aggregate of all such
         breaches or failures to perform, together with the aggregate of all
         breaches or other failures to perform of any and all covenants and
         agreements set forth in Sections 6.4, 6.5, 6.6, 6.12 or 6.13 of this
         Agreement,
        

                                      -44-
   51
         and all breaches of representations and warranties of the General
         Partner or the Company set forth in Section 2.6 of this Agreement or
         Section 4.02(a)(i) of the Mortgages, causes the aggregate value of
         the First Lien Collateral to be less than 95 percent of what it would
         have been in the absence of such breaches or failures to perform, and
         provided further that, in the case of all other covenants and
         obligations in this Agreement, the Notes or the Mortgages (other than
         Section 6.11 and 6.17, and other than in the case of any obligation to
         make any payment of principal or interest on any Note on or before the
         date such payment is due) such breaches or failures to perform
         constitute a material breach or failure to perform of the covenant or
         agreement in question;

                 (e)      Warranties or Representations - any warranty,
         representation, or other statement by or on behalf of the Company, the
         General Partner, or any Affiliate thereof contained in this Agreement
         or in any instrument furnished by any of them in compliance with or
         pursuant to this Agreement is false or misleading in any respect in
         the case of Section 2.6 of this Agreement and Section 4.02(a)(i) of
         the Mortgages (provided that the aggregate of all such breaches of
         said Sections 2.6 and 4.02(a)(i), together with the aggregate of all
         breaches or other failures to perform of any and all covenants and
         agreements set forth in Sections 6.1, 6.2(a), 6.2(b), 6.2(f), 6.4,
         6.5, 6.6, 6.12 or 6.13 of this Agreement, or Sections 4.02(a)(i), (ii)
         or (iii), 4.03 and 9.01 of the Mortgages, causes the aggregate value
         of the First Lien Collateral to be less than 95 percent of what it
         would have been in the absence of such breaches), and in any material
         respect in the case of all other warranties and representations;

                 (f)      Default on Indebtedness or Other Security - the
         Company fails to make any payment due on any Indebtedness or other
         Security or any event shall occur or any condition shall exist in
         respect of any Indebtedness or other Security of the Company, or under
         any agreement securing or relating to such Indebtedness or other
         Security, the effect of which is (i) to cause (or permit any holder of
         such Indebtedness or other Security or a trustee to cause) such
         Indebtedness or other Security, or a portion thereof, to become due
         prior to its stated maturity or prior to its regularly scheduled date
         of payment or (ii) to permit a trustee or the holder of any Security
         (other than common stock of the General Partner) to elect a majority of
         the directors on the Board of Directors of the General Partner or to
         change the control of the Company;


                                      -45-
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                 (g)      Involuntary Bankruptcy Proceedinqs - a receiver,
         liquidator, custodian, or trustee of the Company or the General
         Partner or of any material Property of the Company or the General
         Partner is appointed by court order and such order remains in effect
         for more than 60 days; or any of the material Property of the Company
         or the General Partner is sequestered by court order and such order
         remains in effect for more than 60 days; or a petition is filed, a
         case is commenced or relief is ordered against the Company or the
         General Partner under any bankruptcy, reorganization, arrangement,
         insolvency, readjustment of debt, dissolution, or liquidation law of
         any jurisdiction, whether now or hereafter in effect, and is not
         dismissed within 60 days after such filing, commencement, or relief is
         ordered against the Company or the General Partner;

                 (h)      Voluntary Petitions - the Company or the General
         Partner files a petition commencing a case in voluntary bankruptcy or
         seeking relief under any provision of any bankruptcy, reorganization,
         arrangement, insolvency, readjustment of debt, dissolution, or
         liquidation law of any jurisdiction, whether now or hereafter in
         effect, or consents to the filing of any petition or the commencement
         of any case against it under any such law, or takes any corporate or
         partnership action to authorize or effect any of the foregoing;

                 (i)      Assignments for Benefit of Creditors, etc. - the
         Company or the General Partner makes a general assignment for the
         benefit of its creditors, or fails to pay its debts generally as they
         become due, or admits in writing its inability to pay its debts
         generally as they become due, or consents to the appointment of a
         receiver, trustee, custodian or liquidator of the Company or the
         General Partner or of all or any part of the Property of any of them,
         or takes any corporate or partnership action to authorize or effect
         any of the foregoing;

                 (j)      Undischarqed Final Judgments- final judgment or
         judgments for the payment of money aggregating in excess of $250,000
         is or are outstanding against the Company and any one of such
         judgments has been outstanding for more than 60 days from the date of
         its entry and has not been discharged in full or stayed; or

                 (k)      Discontinuance of Business - the Company
         discontinues its usual business as described in Section 2.2.

         9.2      Default Remedies.


                                      -46-
   53
                 (a)      Acceleration. If an Event of Default exists, the
         holder or holders of more than 33-1/3% in principal amount of the
         Notes then outstanding (exclusive of Notes then owned by the Company
         or the General Partner or any of their respective Subsidiaries,
         Partnerships, Joint Ventures or other Affiliates) may exercise any
         right, power, or remedy permitted to such holder or holders by law,
         and shall have, in particular, without limiting the generality of the
         foregoing, the right to declare the entire principal and all interest
         accrued on all the Notes then outstanding to be, and such Notes shall
         thereupon become, forthwith due and payable, without any presentment,
         demand, protest, or other notice of any kind, all of which are hereby
         expressly waived. The Company forthwith will pay to the holder or
         holders of all the Notes then outstanding the entire principal of and
         interest accrued on the Notes, provided that during the existence of
         an Event of Default described in Section 9.1(a) or (b) and
         irrespective of whether the holder or holders of more than 33-1/3% in
         principal amount of Notes then outstanding have declared all the Notes
         to be due and payable pursuant to this Section 9.2(a), any holder of
         Notes that has not consented to any waiver with respect to such Event
         of Default, at its option by notice in writing to the Company, may
         declare the Notes then held by such holder to be, and such Notes shall
         thereupon become, forthwith due and payable together with all interest
         accrued thereon without any presentment, demand, protest, or other
         notice of any kind, all of which are hereby expressly waived, and the
         Company forthwith shall pay to such holder the entire principal of and
         interest accrued on such Notes.

                 (b)      Nonwaiver and Expenses. No course of dealing on the
         part of any holder of the Notes nor any delay or failure on the part
         of any holder of the Notes to exercise any right, power, or remedy
         shall operate as a waiver of such right, power, or remedy or otherwise
         prejudice such holder's rights, powers, and remedies. If the Company
         fails to pay when due the principal or interest on any Note, or fails
         to comply with any other provision of this Agreement, the Notes, or
         the Mortgages or any other instrument or document securing the payment
         or performance of the obligations provided for in this Agreement, the
         Company will pay to the holders of the Notes, to the extent permitted
         by law, such further amounts as shall be sufficient to cover the cost
         and expenses, including, without limitation, reasonable attorneys'
         fees, incurred by such holders in collecting any sums due on the Notes
         or in otherwise enforcing any of their rights.


                                      -47-
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         9.3     Annulment of Acceleration of Notes. If a declaration is made
pursuant to Section 9.2(a) by any holder or holders of the Notes, then and in
every such case, the holders of 66-2/3% in aggregate principal amount of the
Notes then outstanding (exclusive of Notes then owned by the Company or the
General Partner or any of their respective Subsidiaries, Partnerships, Joint
Ventures or other Affiliates) by written instrument filed with the Company, may
rescind and annul such declaration, and the consequences thereof, provided that
at the time such declaration is annulled and rescinded:

                 (a)      no judgment or decree has been entered for the
         payment of any monies due pursuant to the Notes, the Mortgages or this
         Agreement;

                 (b)      all arrears of interest upon all the Notes, the
         Mortgages and all other sums payable under the Notes, the Mortgages
         and this Agreement and any other instrument or document securing the
         payment or performance of the obligations provided for in this
         Agreement (except any principal or interest on the Notes that has
         become due and payable by reason of such declaration under Section
         9.2(a)) shall have been duly paid; and

                 (c)      each and every other Default and Event of Default 
         shall have been waived pursuant to Section 11.4 or otherwise made good 
         or cured;

and provided further that no such rescission and annulment shall extend to or
affect any subsequent Default or Event of Default or impair any right
consequent thereon.

         9.4     Recourse and Non-Recourse Matters. It is expressly agreed that
neither the Company nor the General Partner shall be personally or individually
liable for any Non-Recourse Matters, and holders of any Notes shall neither
seek nor take any deficiency or monetary judgment for any Non-Recourse Matters
against the Company, the General Partner, or against any Property thereof other
than the Collateral or any other Properties covered by any other instruments or
documents securing the payment of amounts payable with respect to Non-Recourse
Matters, and said holders of the Notes shall look solely to enforcement of the
Liens covering said Collateral and Properties for the payment of amounts
payable with respect to Non-Recourse Matters; provided, however, that nothing
contained in this Section 9.4 shall in any way limit or restrict, or
constitute a waiver by you of, your right of recourse and remedy against the
Company and the General Partner personally or individually on account of any
Recourse Matters. Under no circumstances shall any limited partner of the
Company be personally or individually liable on account of its interest


                                      -48-
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as limited partner in the Company for the obligations of the Company undertaken
in or pursuant to this Agreement.

SECTION 10. INTERPRETATION OF THIS AGREEMENT

         10.1    Terms Defined. As used in this Agreement, the following terms
have the respective meanings set forth below or set forth in the Section
following such term:

                 Affiliate - any Person that directly or indirectly, through
         one or more intermediaries, controls, or is controlled by, or is under
         common control with, the Company or the General Partner, as the case
         may be, or any Subsidiary, Partnership, or Joint Venture of the
         Company or the General Partner, as the case may be. The term "control"
         as used in the foregoing sentence means the possession, directly or
         indirectly, of the power to direct or cause the direction of the
         management and policies of a Person, whether through the ownership of
         voting securities, by contract, or otherwise.

                 Business Day - Any day other than a Saturday, Sunday or legal
         holiday for commercial banks under the laws of the Commonwealth of
         Massachusetts or the State of Oklahoma or any executive order issued
         thereunder.

                 Capitalized Lease Obligations - all rental obligations that,
         under generally accepted accounting principles in effect on the date
         hereof, are or would be required to be capitalized on the books of the
         Company or any Subsidiary (including, without limitation, all existing
         rental obligations that would be required to be so capitalized for
         calendar or fiscal years beginning after March 31, 1988, and any
         rentals incurred in connection with issues of "industrial revenue
         bonds" as defined in section 103(c)(2) and "pollution control bonds"
         within the meaning of section 103(b)(4)(f) of the Code), in each case
         taken at the amount thereof accounted for as Indebtedness (net of
         interest expense) in accordance with such principles.

                 Chattel Paper - "chattel paper" as defined in the Uniform
         Commercial Code.

                 Closing - Section 1.2.

                 Closing Date - Section 1.2.

                 Code - the Internal Revenue Code of 1986, as amended.

                 Consolidated Debt - with respect to any Person, means, without
         duplication:


                                      -49-
   56
                          (1)     its liabilities for borrowed money;

                          (2)     liabilities secured by any Lien existing on
                 Property owned by such Person (regardless of whether such
                 liabilities have been assumed);

                          (3)     liabilities under Capitalized Lease 
                 Obligations;

                          (4)     any other obligations (other than deferred
                 taxes, gas balancing amounts (regardless or whether current)),
                 and other noncurrent liabilities) that are required by
                 generally accepted accounting principles to be shown as
                 liabilities on its balance sheet and which are payable or
                 remain unpaid more than one year from the creation thereof;
                 and

                          (5)     Guaranties (other than those permitted by
                 Section 6.9(a)).

                 Consolidated Net Income - net earnings (or loss) after income
         taxes of the Company or the General Partner, as the case may be, and
         its respective Subsidiaries determined on a consolidated basis, but
         excluding:

                          (1)     any gain (or loss) arising from the sale of
                 capital assets (i.e., those assets other than current assets);

                          (2)     any gain (or loss) arising from any write-up
                 or write-down of assets;

                          (3)     net earnings (or loss) of any such Subsidiary
                 accrued prior to the date it became such a Subsidiary;

                          (4)     net earnings (or loss) of any Person,
                 substantially all the assets of which have been acquired by
                 the Company or the General Partner, as the case may be, in any
                 manner, realized by such Person prior to the date of such
                 acquisition;

                          (5)     net earnings (or loss) of any Person in which
                 the Company or the General Partner, as the case may be, or any
                 Subsidiary thereof has an equity interest (other than
                 a Subsidiary) unless such net earnings (or loss) shall have
                 actually, been received by the Company or the General
                 Partner, as the case may be, or such Subsidiary in the form of
                 cash distributions;


                                      -50-
   57
                          (6)     any portion of the net earnings (or loss) of
                 any Subsidiary of the Company or the General Partner, as the
                 case may be, which contractually or legally is unavailable for
                 payment of dividends to the Company or the General Partner,
                 as the case may be, or any other Subsidiary thereof;

                          (7)     the net earnings (or loss) of any Person with
                 which the Company or the General Partner, as the case may be,
                 shall have merged, prior to the date of such transaction; and

                          (8)     in the case of the General Partner, any gain
                 (or loss) arising from the acquisition of any Securities of
                 the General Partner or any Subsidiary thereof.

                 Contract Operating Agreements - collectively, the Alexander
         Contract Operating Agreement and the Zilkha Contract Operating
         Agreement.

                 Contracts - when described as being those of or applicable to
         any Person, means any and all contracts, agreements, franchises,
         understandings, arrangements, leases, licenses, registrations,
         authorizations, easements, servitudes, rights-of-way, mortgages,
         bonds, notes, guaranties, liens, indebtedness, approvals or other
         instruments or undertakings to which such Person is a party or to
         which or by which such Person or the Property of such Person is
         subject or bound, excluding any Permits.

                 Default - an event or condition the occurrence of which, with
         the lapse of time or the giving of notice or both, would become an
         Event of Default.

                 Distribution - in respect of any corporation or other
         entity means:

                          (1)     dividends or other distributions on capital
                 stock or equity interests in such entity; and

                          (2)     the redemption or acquisition of such stock or
                 other equity interests or of warrants, rights, or other
                 options to purchase such stock unless made, contemporaneously,
                 from the net proceeds of a sale of such stock or other equity
                 interests.

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


                                      -51-
   58
                 ERISA Affiliate - each trade or business (whether or not
         incorporated) which together with the Company, or its General Partner
         or any of its or their Subsidiaries, Partnerships or Joint Ventures
         would be deemed to be a "single employer" within the meaning of
         Section 4001(b)(1) of ERISA or subsections (b), (c), (m) or (o) of
         Section 414 of the Code.

                 ERISA Event - (i) a "Reportable Event" described in Section
         4042 of ERISA and the regulations issued thereunder, (ii) the
         withdrawal of the Company or its General Partner or any of its or
         their Subsidiaries, Partnerships or Joint Ventures or any ERISA
         Affiliate from a Plan during a plan year in which it was a
         "substantial employer" as defined in Section 4001(a)(2) of ERISA,
         (iii) the filing of a notice of intent to terminate a Plan or the
         treatment of a Plan amendment as a termination under Section 4041 of
         ERISA, (iv) the institution of proceedings to terminate a Plan by the
         PBGC, or (v) any other event or condition which might constitute
         grounds under Section 4042 of ERISA for the termination of, or the
         appointment of a trustee to administer, any Plan.

                 Event of Default - Section 9.1.

                 First Lien Collateral - that portion of the Collateral in
         which you have valid, perfected and enforceable first priority
         security interests, mortgages and liens, in each case subject to no
         prior or superior Lien other than the Permitted Liens.

                 Governmental Authorities - any state or country (including but
         not limited to the United States) and any commonwealth, territory or
         possession thereof and any political subdivision of any of the
         foregoing, including but not limited to courts, departments,
         commissions, boards, bureaus, agencies, ministries or other
         instrumentalities or any official thereof.

                 Guaranty - Section 6.10.

                 Hazardous Materials - (a) any oil, flammable substances,
         explosives, radioactive materials, hazardous wastes or substances,
         toxic wastes or substances, or any other materials or pollutants which
         (i) pose a hazard to the lands in which the Oil and Gas Properties are
         located and the improvements thereon or to persons on or about such
         lands and improvements, or (ii) cause the lands in which the Oil and
         Gas Properties are located and the improvements thereon to be in
         violation of any Hazardous Materials Laws; (b) asbestos, urea
         formaldehyde foam insulation, transformers or other equipment which
         contain dielectric fluid containing


                                      -52-
   59
         levels of polychlorinated biphenyls in excess of fifty (50) parts per
         million; (c) any chemical, material or substance defined as or
         included in the definition of "hazardous substances," "hazardous
         wastes," "hazardous materials," "extremely hazardous waste,"
         "restricted hazardous waste," or "toxic substances" or words of
         similar import under any applicable local, state or federal law or
         under the regulations adopted or publications promulgated pursuant
         thereto, including, but not limited to, the Comprehensive
         Environmental Response, Compensation and Liability Act of 1980, as
         amended, 42 U.S.C. Sec. 9601, et. seq.; the Hazardous Materials
         Transportation Act, as amended 49 U.S.C. Sec. 1801, et. seq.; the
         Resource Conservation and Recovery Act, as amended, 42 U.S.C. Sec.
         6901, et. seq.; the Federal Water Pollution Control Act, as amended,
         33 U.S.C. Sec. 1251, et. seq.; and (d) any other chemical, material or
         substance, exposure to which is prohibited, limited or regulated by
         any Governmental Authority or may or could pose a hazard to the health
         and safety of persons on or about the aforesaid land and improvements.

                 Hazardous Materials Claims - any and all enforcement,
         clean-up, removal or other governmental or regulatory actions or
         orders threatened, instituted or completed pursuant to any Hazardous
         Materials Laws, together with all claims made or threatened by any
         third party against the Company or other owners of the Oil and Gas
         Properties or against the Oil and Gas Properties relating to damage,
         contribution, cost recovery compensation, loss or injury resulting
         from any Hazardous Materials.

                 Hazardous Materials Laws-- any federal, state or local laws,
         ordinances, regulations, or policies relating to the environment,
         health and safety, any Hazardous Materials (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 the Oil and Gas
         Properties, including, without limitation, soil and groundwater
         conditions.

                 Indebtedness - all obligations that, in accordance with
         generally accepted accounting principles, should be classified as
         liabilities upon a balance sheet, and in any event includes all
         borrowings and other monetary obligations, whether direct or indirect
         or a direct or indirect guarantee, it being understood that such term
         shall not include capital or capital surplus.

                 Institutional Holder - any institutionai investor of
         recognized standing (including any commercial bank, savings bank,
         insurance company, pension or retirement


                                      -53-
   60
         fund, bank holding company, or insurance holding company) that shall
         become a holder of Note.

                 Joint Venture - any joint venture in which the Company or the
         General Partner or any Subsidiary, Partnership, or other such Joint
         venture of the Company or the General Partner is a participant;
         provided, however, that the term "Joint Venture" shall not be deemed
         to include joint exploration and operating arrangements customary in
         the oil and gas industry and not intended to create (even if having
         the legal effect of creating) a partnership, joint venture, or other
         relationship (other than for income tax purposes) creating joint and
         several liability on the part of the participants therein.

                 Leqal Requirements - when described as being applicable to any
         Person, means any and all laws (statutory, judicial or otherwise),
         ordinances, rules, regulations, judgments, orders, directives,
         injunctions, writs, decrees or awards of, and any contracts,
         agreements, franchises, understandings or arrangements with, any
         Governmental Authority or arbitration board, panel or tribunal, in each
         case as and to the extent applicable to such Person or such Person's
         business, operations or properties.

                 Lien - any interest in Property securing an obligation owed
         to, or a claim by, a Person other than the owner of the Property,
         whether such interest is based on law, statute, or contract
         (including, without limitation, the security interest lien arising
         from a mortgage, encumbrance, pledge, conditional sale, or trust
         receipt or a lease, consignment or bailment for security purposes),
         and any reservations, exceptions, encroachments, easements,
         rights-of-way,covenants, conditions, restrictions, leases, defects,
         irregularities, deficiencies, servitudes, and other title exceptions
         and encumbrances affecting Property. For the purposes of this
         Agreement, the Company or the General Partner or any Subsidiary,
         Partnership, or Joint Venture of either shall be deemed to be the
         owner of any Property that it has acquired or holds subject to a
         conditional sale agreement, financing lease, or other arrangement
         pursuant to which title to the Property has been retained by or vested
         in some other Person for security purposes.

                 Minerals - oil, gas, other liquid and gaseous hydrocarbons and
         other minerals, whether similar or dissimilar.

                 Multiemployer Plan - a Plan which is a


                                      -54-
   61
         multiemployer plan as defined in Section 3(37) or 4001(a)(3) of ERISA.

                 Net Proceeds - for any period after the Closing Date, the "net
         revenues from oil and gas production" attributable to the Subject
         Interests during such period, to the extent and only to the extent
         related to "proved developed oil and gas reserves," as the foregoing
         terms in quotation marks are defined in and calculated under the
         "full-cost method of accounting" and other valuation methods and
         definitions not inconsistent therewith set forth in Section 210.4-10 of
         Regulation S-X promulgated by the Securities and Exchange Commission,
         17 C.F.R. Section 210.4-10, as amended ("Regulation Section 210.4-10"),
         Net Proceeds for any given month being computed in accordance with
         Section 8.1(b) hereof; provided that (1) the Management Fee provided
         for under the Company's Agreement of Limited Partnership shall be
         included in the costs to be deducted from revenues, and (2) any and all
         proceeds from the sale or other disposition of any Subject Interests
         (including but not limited to compensatory damages, awards, insurance
         or indemnity recovered for damage to, condemnation of, or loss of any
         Subject Interests), after deducting therefrom the reasonable
         out-of-pocket costs and expenses incurred in effecting such sale or
         other disposition, and any and all damages or indemnity recovered from
         Zilkha or its successors or assigns pursuant to the Purchase Agreement,
         shall be included in revenues for purposes of calculating the Net
         Proceeds as described immediately above.
        
                 Net Worth - as to any Person, the net worth of such Person
         computed in accordance with generally accepted accounting principles
         consistently applied.

                 Non-Recourse Matters - any and all breaches or failures to
         perform of representations, warranties, covenants or agreements of the
         Company or the General Partner set forth in this Agreement, the Notes
         or the Mortgages not otherwise included in the definition of Recourse
         Matters.

                 Notes - Section 1.1.

                 Officers' Certificate - a certificate signed by (1) the
         Chairman of the Board, the President, or a Vice President of the
         General Partner, and (2) the Treasurer, an Assistant Treasurer, the
         Secretary, or an Assistant Secretary of the General Partner.

                 Partnership - any partnership (as defined in the Uniform       
         Partnership Act in effect in any applicable jurisdiction) or limited
         partnership in which the


                                      -55-
   62
         Company or the General Partner or any Subsidiary, Joint Venture or
         other such Partnership is a partner; provided, however, that the term
         "Partnership" shall not be deemed to include joint exploration and
         operating arrangements customary in the oil and gas industry and not
         intended to create (even if having the legal effect of creating) a
         partnership, joint venture, or other relationship (other than for
         income tax purposes) creating joint and several liability on the part
         of the participants therein, and in the case of the General Partner
         shall not include the Company.

                 Permits - any and all permits, licenses, consents, approvals,
         authorizations, legal status, orders or other agreements, franchises,
         understandings or arrangements under any Legal Requirement or
         otherwise granted or required by any Governmental Authority.

                 Permitted Liens - with respect to any Property, the Liens
         permitted for such Property under Section 6.6.
 
                 Person - an individual, partnership, corporation, trust, 
         unincorporated organization, or other legal entity, or a government 
         or agency or political subdivision thereof.

                 PBGC - the Pension Benefit Guaranty Corporation, or any
         successor thereto.

                 Plan - any employee pension benefit plan, as defined in
         Section 3(2) of ERISA, which (a) is currently or hereafter sponsored,
         maintained or contributed to by the Company or any of its
         Subsidiaries, Partnerships or Joint Ventures or an ERISA Affiliate or
         (b) was at any time during the six calendar years preceding the date
         of this Agreement, sponsored, maintained or contributed to by the
         Company or any of its Subsidiaries, Partnerships or Joint Ventures
         or an ERISA Affiliate. 

                 Present Value of Estimated Future Net Revenues - the "Present
         Value of Estimated Future Net Revenues" from any interest in oil, gas
         or mineral interests, leases, estates and other Properties to the
         extent and only to the extent related to "proved developed oil and gas
         reserves," as the foregoing terms in quotation marks are defined in
         and calculated under the "full cost method of accounting" and other
         valuation methods and definitions not inconsistent therewith set forth
         in Regulation Section 210.4-10.

                 Property or Properties - any interest or interests in any
         kind of property or asset, whether real, personal or mixed, or
         tangible or intangible.


                                      -56-
   63
                 Receivables - Section 2.16.

                 Recourse Matters - any and all of the following matters:

                 (i)      any and all material breaches of representations or
         warranties of the General Partner or the Company set forth in this
         Agreement, the Notes or the Mortgages other than those set forth in
         Section 2.6 of this Agreement or Section 4.02(a)(i) of the Mortgages,

                 (ii)     any and all breaches of representations or warranties
         of the General Partner or the Company set forth in Section 2.6 of this
         Agreement or Section 4.02(a)(i) of the Mortgages, provided that the
         aggregate of all such breaches of said Sections 2.6 and 4.02(a)(i),
         together with the aggregate of all breaches or other failures to
         perform of any and all covenants and agreements set forth in Section
         6.1, 6.2, 6.3(b), 6.4 through 6.10 or 6.12 through 6.16, causes the
         aggregate value of the First Lien Collateral to be less than 95
         percent of what it would have been in the absence of such breaches or
         failures to perform, and provided further that this clause (ii) shall
         not apply with respect to any Oil and Gas Property as to which a title
         opinion meeting the requirements of Section 6.17(b) has been furnished
         or is not required to be furnished in accordance with such Section
         6.17(b),

                 (iii)    any and all breaches or other failures to perform of
         any and all covenants and agreements set forth in (x) Section 6.1,
         6.2, 6.3(b), 6.4 through 6.10 and 6.12 through 6.16, but only as and
         to the extent that the aggregate of all such breaches and/or failures
         to perform, together with the aggregate of all breaches of
         representations and warranties of the General Partner or the Company
         set forth in Section 2.6 of this Agreement or Section 4.02(a)(i) of
         the Mortgages, causes the aggregate value of the First Lien Collateral
         to be less than 95 percent of what it would have otherwise been in the
         absence of such breaches or failures to perform, (y) Section 6.11 of
         this Agreement and Section 4.04 of the Mortgages (without regard to
         any diminution in value of the First Lien Collateral), and (z) Section
         6.17 of this Agreement, as such Section 6.17 is limited by its own
         terms, and

                 (iv)     any and all breaches or other failures to
         perform of any and all covenants and agreements set forth in
         Section 6.3(a).

                 Registered Notes - Section 1.1.


                                      -57-
   64
                 Restricted Investments - all investments, made in cash or by
         delivery of Property, by the Company or any of its Subsidiaries,
         Partnerships, or Joint Ventures (x) in any Person, whether by
         acquisition of stock, indebtedness or other obligation or Security,
         or by loan, advance or capital contribution, or otherwise, or (y) in
         any Property (items (x) and (y) herein called "Investments"), except
         the following:

                          (1)     investments in direct obligations of the
                 United States of America, or any agency thereof or obligations
                 guaranteed by the United States of America, provided that such
                 obligations mature within two years from the date of
                 acquisitions thereof; and

                          (2)     investments in certificates of deposit
                 maturing within one year from the date of acquisition issued
                 by, and interest-bearing demand deposit accounts maintained
                 at, The Liberty National Bank and Trust Company of Oklahoma
                 City or another bank or trust company that is a member of the
                 Federal Deposit Insurance Corporation and organized under the
                 laws of the United States or any state thereof having
                 comparable or greater capital, surplus and undivided profits.

         Investments shall be valued at cost less any net return of capital
         through the sale or liquidation thereof or other return of capital
         thereon.

                 Security - shall have the same meaning as in section 2(1) of 
         the 1933 Act.

                 Subordinated Debt - all Consolidated Debt of the Company or
         the General Partner, as the case may be, that provides for the
         subordination of such Consolidated Debt to the Notes.

                 Subsidiary - a corporation, if any, of which the Company or
         the General Partner, as applicable, owns, directly or indirectly, more
         than 50% of the Voting Stock.

                 Substantial Part - as used in Sections 6.4 and 6.5 means, when
         used with respect to consolidated assets of the Company and its
         Subsidiaries, Partnerships, and Joint Ventures, more than 25% thereof,
         and when used with respect to Consolidated Net Income for any period,
         more than 25% thereof for such period. Computations pursuant to
         Section 6.5 shall include dispositions made pursuant to Section 6.4
         and computations pursuant to Section 6.4 shall include dispositions
         made pursuant to Section 6.5.


                                      -58-
   65
                 Voting Stock - securities of any class or classes of a
         corporation the holders of which ordinarily, in the absence of
         contingencies, are entitled to elect a majority of the corporate
         directors (or Persons performing similar functions).

                 Wholly-Owned Subsidiary - any Subsidiary, all of the
         outstanding capital stock (except directors' qualifying shares) of
         which are owned by the Company or the General Partner, as the case may
         be, and/or other Wholly-Owned Subsidiaries of the Company or the
         General Partner, respectively.

                 1933 Act - Section 1.3(b).

         10.2    Accountinq Principles. Except as expressly stated otherwise in
this Agreement, where the character or amount of any asset or liability or item
of income or expense is required to be determined or any consolidation or other
accounting computation is required to be made for the purposes of this
Agreement, this shall be done in accordance with generally accepted accounting
principles at the time of effect, to the extent applicable. When any
computations are made with respect to Subsidiaries, Partnerships, or Joint
Ventures, only the portion attributable to the Company's or the General
Partner's, as the case may be, direct or indirect equity interest therein shall
be included.

         10.3    Directly or Indirectly. Where any provision in this Agreement
refers to action to be taken by any Person, or which such Person is prohibited
from taking, such provision shall be applicable whether such action is taken
directly or indirectly by such Person, including actions taken by or on behalf
of any partnership in which such Person is a general partner.

         10.4    Governing Law. The parties hereto specifically agree that this
Agreement and the Notes shall be governed by and construed in accordance with
the laws of the Commonwealth of Massachusetts, excluding any conflict-of-law
rule or law that might refer same to the laws of another jurisdiction. The
parties hereto specifically and non-exclusively submit themselves to the
personal jurisdiction of the state and federal courts in the Commonwealth of
Massachusetts, in connection with all controversies and disputes arising out of
or relating to the effect, interpretation, performance, or breach of this
Agreement, and, in that connection, the Company hereby appoints the Secretary
of State of the Commonwealth of Massachusetts as its agent for service of
process and any actions brought in the state or federal courts in the
Commonwealth of Massachusetts, arising out of


                                      -59-
   66
or relating to the effect, interpretation, performance, or breach of this
Agreement.

         10.5    References. All references herein to one gender shall include 
the others. Unless otherwise expressly provided, all references to "Sections" 
are to Sections of this Agreement and all references to "Exhibits" are to the
exhibits attached hereto, each of which is made a part hereof for all purposes.

SECTION 11. MISCELLANEOUS

         11.1    Notices.

                 (a)      Except as otherwise provided in this Agreement or in
         the Notes, all communications under this Agreement or under the Notes
         shall be in writing and shall be mailed by first class mail, postage
         prepaid,

                          (i)     if to you, in the manner set forth on Exhibit
                 4.1, or at such other address in Massachusetts as you have
                 furnished the Company by at least 15 days' prior notice, or

                          (ii)    if to the Company, or the General Partner, at
                 Suite 600, Triad Center, 501 Northwest Expressway, Oklahoma
                 City, Oklahoma 73118, Attention: Bob G. Alexander, or at such
                 other address as it may have furnished by at least 15 days'
                 prior notice to you and all other holders of the Notes at the
                 time outstanding.

                 (b)      Any notice so addressed and mailed by registered or
         certified mail shall be deemed to be given when so mailed.

         11.2    Survival. All warranties, representations, and covenants made
by the Company herein or on any certificate or other instrument delivered by it
under this Agreement shall be considered to have been relied upon by you and
shall survive the delivery to you of the Notes and the Warrant regardless of
any investigation made by you or on your behalf. All statements in any such
certificate or other instrument shall constitute warranties and representations
by the Company hereunder.

         11.3    Successors and Assigns. The Company may not assign any of its
rights or delegate any of its duties to any Person without your prior written
consent. Except as expressly set forth in Section 5 and this Section 11.3,
this Agreement shall inure to the benefit of and be binding upon the successors
and assigns of each of the parties, and the provisions of this Agreement are
intended to be for the


                                      -60-
   67
benefit of all holders, from time to time, of the Notes, and shall be
enforceable by any such holder, regardless of whether an express assignment to
such holder of rights under this Agreement has been made by you or your
successor or assign.

         11.4    Amendment and Waiver.

                 (a)      This Agreement may be amended, and the observance of
         any term of this Agreement may be waived, with (and only with) the
         written consent of the Company and the holders of at least 66-2/3% in
         aggregate principal amount of the Notes at the time outstanding
         (exclusive of Notes then owned by the Company, the General Partner or
         any of their respective Subsidiaries, Partnerships, Joint Ventures,
         and Affiliates); provided, however, that no such amendment or waiver
         of any of the provisions of Sections 1 through 4 shall be effective as
         to you unless consented to by you in writing; and provided further
         that without the written consent of the holders of all the Notes at
         the time outstanding, no such amendment or waiver shall (i) subject to
         Section 9.3, change the amount or time of any payment of principal or
         the rate or time of payment of interest, (ii) amend Section 9, or
         (iii) amend this Section 11.4.

                 (b)      So long as any outstanding Notes are owned by you,
         the Company shall not solicit, request, or negotiate for or with
         respect to any proposed waiver or amendment of any of the provisions
         of this Agreement or the Notes unless each holder of the Notes
         (irrespective of the amount of Notes then owned by it) shall be
         informed thereof by the Company and shall be afforded the opportunity
         of considering the same and shall be supplied by the Company with
         sufficient information to enable it to make an informed decision with
         respect thereto. Executed or true and correct copies of any waiver or
         consent effected pursuant to the provisions of this Section 11.4
         shall be delivered by the Company to each holder of outstanding Notes
         forthwith following the date on which the same shall have been
         executed and delivered by the holder or holders of the requisite
         percentage of outstanding Notes. The Company shall not, directly or
         indirectly, pay or cause to be paid any remuneration, whether by way
         of supplemental or additional interest, fee, or otherwise, to any
         holder of the Notes as consideration for or as an inducement to
         entering into by any holder of the Notes of any waiver or amendment
         of any of the terms and provisions of this Agreement unless such
         remuneration is concurrently paid, on the same terms, ratably to the
         holders of all of the Notes then outstanding.


                                      -61-
   68
                 (c)      Any such amendment or waiver shall apply equally to
         all the holders of the Notes and shall be binding upon each future
         holder of any Note and upon the Company regardless of whether such
         Note shall have been marked to indicate such amendment or waiver. No
         such amendment or waiver shall extend to or affect any obligation not
         expressly amended or waived or impair any right consequent thereon.

         11.5    Knowledge. Any statement in this Agreement that is expressed
in terms of the knowledge of the Company or the General Partner or any
Subsidiary, Partnership, or Joint Venture is intended to and shall be deemed to
mean the actual knowledge of the officers, directors, or managerial personnel
of such Person with respect to the matter in question, and the knowledge that
any of such officers, directors or managerial personnel would obtain after
making due investigation into the matter in question.

         11.6    Multiple Counterparts. Two or more counterparts of this
Agreement may be signed by the parties, each of which shall be an original but
all of which together shall constitute one and the same instrument.

         If this Agreement is satisfactory to you, please so indicate by
signing the acceptance at the foot of a counterpart of this Agreement and
return such counterpart to the Company, whereupon this Agreement will become
binding between us in accordance with its terms effective as of April 25, 1989.

                                          Very truly yours,

                                          AEJH 1989 LIMITED PARTNERSHIP

                                          By:  Alexander Energy Corporation,
                                               General Partner

                                               By: /s/ BOB G. ALEXANDER
                                                   ---------------------------
                                               Name: Bob G. Alexander
                                                     -------------------------
                                               Title: President
                                                      ------------------------


                                      -62-
   69
         The General Partner joins in this Note Agreement for the purposes of
the representations and warranties in Section 2 hereof and to covenant and
agree, for the benefit of all holders of the Notes, to do the things it
agrees to do or the Company has agreed to cause it to do.

                                          ALEXANDER ENERGY CORPORATION


                                               By: /s/ BOB G. ALEXANDER
                                                   ---------------------------
                                               Name: Bob G. Alexander
                                                     -------------------------
                                               Title: President
                                                      ------------------------

ACCEPTED:

JOHN HANCOCK MUTUAL LIFE
   INSURANCE COMPANY


By: /s/ WILLIAM A. KINSLEY
    ----------------------------
Name: WILLIAM A. KINSLEY
      --------------------------
Title: Senior Investment Officer
       -------------------------


                                      -63-
   70
                                EXHIBIT 1.1 (vi)

                          10-1/2% SENIOR SECURED NOTE

$____________                Boston, Massachusetts                April 25, 1989


         FOR VALUE RECEIVED, AEJH 1989 Limited Partnership, a Delaware limited

partnership ("the Company"), promises and agrees to pay to JOHN HANCOCK MUTUAL
LIFE INSURANCE COMPANY, a Massachusetts mutual life insurance company, or its
registered assign ("Holder") at The First National Bank of Boston, 100 Federal
Street, Boston, Massachusetts (or such other place as Holder may designate from
time to time on at least 10 days' notice to the Company), in coin or currency
of the United States of America that at the time of payment is legal tender for
the payment of public and private debts, the principal sum of ____ AND ____
/100THS DOLLARS ($_____), and to pay interest on the unpaid principal balance
thereof  from the date of this Note at the rate of 10-1/2% per annum, such
interest to be payable monthly in arrears on the first Business Day of each
calendar month and continuing until the entire principal balance thereof is
paid, with the final interest payment being due and payable upon maturity of
this Note. The rate of interest set forth above shall be computed on the basis
of a 365-day or 366-day year, as the case may be. This Note, together with all
accrued unpaid interest, shall be paid December 31, 1999, provided, however,
that mandatory prepayments of principal shall be due and payable as follows.
Subject to and in accordance with the provisions of the Note Agreement, the
Company shall prepay principal on this Note on the first Business Day of each
calendar month in an amount equal to the proportion that the amount of
principal outstanding under this Note bears to the aggregate of all outstanding
principal under all Notes of an amount equal to (1) 80.75% of the Net Proceeds
for the second preceding calendar month, minus (2) interest accrued on all
Notes as of and payable on such prepayment date.
        
         Each payment made by the Company under this Note shall be made in
federal or other immediately available funds before 12:00 noon, Boston time, on
the date that such payment or prepayment is required to be made. Any payment
received and accepted by Holder after such time shall be considered for all
purposes (including the calculation of interest, to the extent permitted by
law) as having been made on the next following Business Day.
   71
         If the date for any payment hereunder falls on a day that is not a
Business Day, then for all purposes of this Note the same shall be deemed to
have fallen on the  next preceding Business Day.

         The Company and each co-maker, guarantor, accommodation party,
endorser, or other person or entity liable for the payment or collection of
this Note expressly waive demand and presentment for payment, notice of
nonpayment, protest, notice of protest, notice of dishonor, bringing of suit
and diligence in taking any action to collect amounts called for hereunder and
in the handling of property at any time existing as security in connection
herewith, and shall be directly and primarily liable for the payment of all
sums owing and to be owing hereon, regardless of and without any notice,
diligence, act or omission as or with respect to the collection of any amount
called for hereunder or in connection with any right, lien, interest or
property at any and all times had or existing as security for any amount
called for hereunder.

         This Note is issued pursuant to and is entitled to the benefits of a
certain Note Agreement entered into among the Company, Alexander Energy
Corporation, an Oklahoma corporation, and John Hancock Mutual Life Insurance
Company, dated as of April 25, 1989 (the "Note Agreement").  Unless otherwise
defined herein or the context otherwise requires, each term used herein with
its initial letter capitalized has the meaning given to such term in the Note
Agreement. This Note is subject to prepayment as specified in, and the Company
agrees to make prepayments of principal on the dates and in the amounts as
required by, the Note Agreement, but except for the mandatory prepayments
described herein and therein, this Note may not be prepaid in whole or in part
at any time. In case an Event of Default shall occur and be continuing, the
principal of this Note and all accrued but unpaid interest thereon and premium,
if any, may be declared due and payable in the manner and with the effect
provided in the Note Agreement. Reference is made to said Note Agreement for
provisions regarding acceleration, additional mandatory prepayments, payment of
attorneys' fees, disbursements, expenses, and all other purposes.

         Payment of this Note is secured by certain Mortgages dated April 25,
1989, and executed by the Company in favor of the holders of the Notes
(including this Note) and granting a mortgage, lien and security interest in
certain Collateral.


                                      -2-
   72
         This Note is a registered note, and, as provided in the Note  
Agreement, is transferable on the note register of the Company upon notice to 
the Company accompanied by a written instrument of transfer reasonably 
satisfactory to the Company duly executed by, or on behalf of, the registered 
holder hereof. The Company may treat the person whose name appears in the note 
register as the owner hereof for the purpose of receiving payment as herein 
provided.
        
         It is expressly stipulated and agreed to be the intention of Holder
and the Company to comply at all times with applicable laws governing the
maximum rate or amount of interest payable on or in connection with this Note.
Accordingly, if any of the transactions contemplated hereby would be usurious
under applicable law now or hereafter governing the interest payable hereunder
(including applicable United States federal law or applicable state law, to the
extent not preempted by United States federal law), then, in that event,
notwithstanding anything to the contrary in this Note or any other agreement
entered into in connection with or as security for this Note, it is agreed as
follows: (x) the aggregate of all consideration that constitutes interest under
applicable law that is contracted for, charged, taken, reserved, or received
under this Note or under any of the other aforesaid agreements or otherwise in
connection with this Note under no circumstances shall exceed the maximum
amount of interest allowed by applicable law, and any excess shall be credited
on this Note by the holder thereof (or if such Note shall have been paid in
full, refunded to the Company); and (y) in the event that maturity of this Note
is accelerated by reason of an election by the holder thereof resulting from
any default hereunder or otherwise, or in the event of any required or
permitted prepayment or conversion, then such consideration that constitutes
interest may never include more than the maximum amount allowed by applicable
law, and excess interest, if any, provided for in this Note or otherwise shall
be cancelled automatically as of the date of such acceleration or prepayment
and, if theretofore prepaid, shall be credited on this Note (or if this Note
shall have been paid in full, refunded to the Company), and the provisions of
this Note and any other agreements entered into in connection with or as
security for such Note shall immediately be deemed reformed and the amounts
thereafter collectible hereunder and thereunder reduced accordingly, without
the necessity of the execution of any new document, so as to comply with the
then applicable law. Determination of the rate of interest for purposes of
determining whether this transaction is usurious under any applicable laws, to
the full extent permitted by applicable law, shall be made by amortizing,
prorating, allocating, and spreading throughout


                                      -3-
   73
the full stated term hereof until payments in full, all sums at any time
contracted for, charged, taken, reserved or received from the Company for the
use, forbearance or detention of money in connection herewith.

         This Note has been made in Boston, Massachusetts, and the Company and
Holder agree that this Note shall be governed by and construed in accordance
with the laws of the Commonwealth of Massachusetts, excluding any
conflict-of-law rule or law that might refer same to the laws of another
jurisdiction. The Company and Holder specifically and nonexclusively submit
themselves to the personal jurisdiction of the state and federal courts in the
Commonwealth of Massachusetts, in connection with all controversies and disputes
arising out of or relating to the effect, interpretation, performance, or breach
of this Note, and, in that connection, the Company hereby appoints the
Secretary of State of the Commonwealth of Massachusetts as its agent for
service of process and any actions brought in the state of federal courts in
the Commonwealth of Massachusetts, arising out of or relating to the effect,
interpretation, performance, or breach of this Note.

         The rights, powers and remedies permitted to any Holder of this Note
who is either the Company or the General Partner or any of their respective
Subsidiaries, Partnerships, Joint Ventures or other Affiliates are subject to
certain limitations and restrictions as and to the extent set forth in the Note
Agreement, and reference is hereby made to such limitations and restrictions
for all purposes.

         It is expressly agreed that neither the Company nor the General
Partner shall be personally or individually liable for any Non-Recourse
Matters, and the holder of this Note shall neither seek nor take any deficiency
or monetary judgment for any Non-Recourse Matters against the Company, the
General Partner or against any Property other than the Collateral or any other
Properties covered by any other instruments or documents securing the payment
of amounts with respect to Non-Recourse Matters, and said holder of this Note
shall look solely to enforcement of the Liens covering said Collateral and
Properties for the payment of amounts with respect to Non-Recourse Matters;
provided, however, that nothing contained in this Note shall in any way limit
or restrict, or constitute a waiver by any Holder of such Holder's right of
recourse and remedy against the Company and the General Partner personally or
individually on account of any Recourse Matters. Under no circumstances shall
any limited partner of the Company be liable on account of its interest as
limited partner in the Company for the


                                      -4-
   74
obligations of the Company undertaken in or pursuant to this Note.

                                          AEJH 1989 LIMITED PARTNERSHIP

                                          By:  ALEXANDER ENERGY CORPORATION,
                                               General Partner

                                               By:____________________________
                                               Name:__________________________
                                               Title:_________________________


                                      -5-