EXHIBIT 10.2

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                     AMENDED AND RESTATED CREDIT AGREEMENT

            _______________________________________________________


                            PLAINS MARKETING, L.P.,

                                  as Borrower,

                                      and

                          ALL AMERICAN PIPELINE, L.P.,

                                  as Guarantor

                                      and

                      PLAINS ALL AMERICAN PIPELINE, L.P.,

                                 as Guarantor,

                                      and

                               BANKBOSTON, N.A.,

                            as Administrative Agent,

                      BANCBOSTON ROBERTSON STEPHENS INC.,

                             as Syndication Agent,

                           ING BARING FURMAN SELZ LLC

                            as Documentation Agent,

                      and CERTAIN FINANCIAL INSTITUTIONS,

                                   as Lenders
            _______________________________________________________

                                  $175,000,000

                               November 17, 1998


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                               TABLE OF CONTENTS

                                                                           Page

AMENDED AND RESTATED CREDIT AGREEMENT......................................  1

ARTICLE I -   Definitions and References...................................  1
Section 1.1.  Defined Terms................................................  1
Section 1.2.  Exhibits and Schedules; Additional Definitions............... 23
Section 1.3.  Amendment of Defined Instruments............................. 23
Section 1.4.  References and Titles........................................ 24
Section 1.5.  Calculations and Determinations.............................. 24

ARTICLE II -  The Loans.................................................... 24
Section 2.1.  Commitments to Lend; Notes................................... 24
Section 2.2.  Requests for New Loans....................................... 25
Section 2.3.  Continuations and Conversions of Existing Loans.............. 26
Section 2.4.  Use of Proceeds.............................................. 27
Section 2.5.  Optional Prepayments of Loans................................ 27
Section 2.6.  Mandatory Prepayments........................................ 27
Section 2.7.  Letters of Credit............................................ 28
Section 2.8.  Requesting Letters of Credit................................. 28
Section 2.9.  Reimbursement and Participations............................. 29
Section 2.10. No Duty to Inquire........................................... 30
Section 2.11. LC Collateral................................................ 31
Section 2.12. Interest Rates and Fees; Reduction in Commitment............. 32
Section 2.13. Borrowing Base Reporting..................................... 33

ARTICLE III - Payments to Lenders.......................................... 33
Section 3.1.  General Procedures........................................... 33
Section 3.2.  Capital Reimbursement........................................ 34
Section 3.3.  Increased Cost of Eurodollar Loans or Letters of Credit...... 34
Section 3.4.  Notice; Change of Applicable Lending Office.................. 35
Section 3.5.  Availability................................................. 35
Section 3.6.  Funding Losses............................................... 36
Section 3.7.  Reimbursable Taxes........................................... 36

ARTICLE IV -  Conditions Precedent to Credit............................... 38
Section 4.1.  Documents to be Delivered.................................... 38
Section 4.2.  Additional Conditions to Initial Credit...................... 39
Section 4.3.  Additional Conditions Precedent.............................. 40

ARTICLE V  -  Representations and Warranties............................... 41
Section 5.1.  No Default................................................... 41
Section 5.2.  Organization and Good Standing............................... 41
Section 5.3.  Authorization................................................ 42

                                       i

 
Section 5.4.  No Conflicts or Consents..................................... 42
Section 5.5.  Enforceable Obligations...................................... 42
Section 5.6.  Initial Financial Statements................................. 42
Section 5.7.  Other Obligations and Restrictions........................... 42
Section 5.8.  Full Disclosure.............................................. 43
Section 5.9.  Litigation................................................... 43
Section 5.10. Labor Disputes and Acts of God............................... 43
Section 5.11. ERISA Plans and Liabilities.................................. 43
Section 5.12. Compliance with Laws......................................... 43
Section 5.13. Environmental Laws........................................... 44
Section 5.14. Names and Places of Business................................. 45
Section 5.15. Borrower's Subsidiaries...................................... 46
Section 5.16. Title to Properties; Licenses................................ 46
Section 5.17. Government Regulation........................................ 46
Section 5.18. Insider...................................................... 46
Section 5.19. Solvency..................................................... 46
Section 5.20. Credit Arrangements.......................................... 46
Section 5.21. Year 2000.................................................... 47

ARTICLE VI -  Affirmative Covenants........................................ 47
Section 6.1.  Payment and Performance...................................... 47
Section 6.2.  Books, Financial Statements and Reports...................... 47
Section 6.3.  Other Information and Inspections............................ 50
Section 6.4.  Notice of Material Events and Change of Address.............. 50
Section 6.5.  Maintenance of Properties.................................... 51
Section 6.6.  Maintenance of Existence and Qualifications.................. 51
Section 6.7.  Payment of Trade Liabilities, Taxes, etc..................... 51
Section 6.8.  Insurance.................................................... 51
Section 6.9.  Performance on Borrower's Behalf............................. 52
Section 6.10. Interest..................................................... 52
Section 6.11. Compliance with Agreements and Law........................... 52
Section 6.12. Environmental Matters; Environmental Reviews................. 52
Section 6.13. Evidence of Compliance....................................... 53
Section 6.14. Agreement to Deliver Security Documents...................... 53
Section 6.15. Perfection and Protection of Security Interests and Liens.... 53
Section 6.16. Bank Accounts; Offset........................................ 53
Section 6.17. Guaranties of Subsidiaries................................... 54
Section 6.18. Compliance with Agreements................................... 54
Section 6.19. Year 2000.................................................... 54
Section 6.20. Rents........................................................ 55

ARTICLE VII - Negative Covenants........................................... 55
Section 7.1.  Indebtedness................................................. 55
Section 7.2.  Limitation on Liens.......................................... 56
Section 7.3.  Hedging Contracts............................................ 57
Section 7.4.  Limitation on Mergers, Issuances of Securities............... 58

                                       ii

 
Section 7.5.  Limitation on Sales of Property.............................. 59
Section 7.6.  Limitation on Dividends and Redemptions...................... 59
Section 7.7.  Limitation on Investments and New Businesses................. 60
Section 7.8.  Limitation on Credit Extensions.............................. 60
Section 7.9.  Transactions with Affiliates................................. 60
Section 7.10. Prohibited  Contracts........................................ 60
Section 7.11. Current Ratio................................................ 61
Section 7.12. Debt Coverage Ratio.......................................... 61
Section 7.13. Interest Coverage Ratio...................................... 61
Section 7.14. Fixed Charge Coverage Ratio.................................. 61
Section 7.15. Debt to Capital Ratio........................................ 61
Section 7.16. Open Inventory Position...................................... 61

ARTICLE VIII -Events of Default and Remedies............................... 61
Section 8.1.  Events of Default............................................ 61
Section 8.2.  Remedies..................................................... 64

ARTICLE IX -  Administrative Agent......................................... 64
Section 9.1.  Appointment and Authority.................................... 64
Section 9.2.  Exculpation, Administrative Agent's Reliance, Etc............ 65
Section 9.3.  Credit Decisions............................................. 65
Section 9.4.  Indemnification.............................................. 66
Section 9.5.  Rights as Lender............................................. 66
Section 9.6.  Sharing of Set-Offs and Other Payments....................... 67
Section 9.7.  Investments.................................................. 67
Section 9.8.  Benefit of Article IX........................................ 67
Section 9.9.  Resignation.................................................. 68
Section 9.10. Other Agents................................................. 68

ARTICLE X   -  Miscellaneous............................................... 68
Section 10.1.  Waivers and Amendments; Acknowledgments..................... 68
Section 10.2.  Survival of Agreements; Cumulative Nature................... 70
Section 10.3.  Notices..................................................... 70
Section 10.4.  Payment of Expenses; Indemnity.............................. 71
Section 10.5.  Joint and Several Liability; Parties in Interest;
                Assignments................................................ 72
Section 10.6.  Confidentiality............................................. 74
Section 10.7.  Governing Law; Submission to Process........................ 75
Section 10.8.  Limitation on Interest...................................... 76
Section 10.9.  Termination; Limited Survival............................... 76
Section 10.10. Severability................................................ 76
Section 10.11. Counterparts................................................ 76
Section 10.12. Waiver of Jury Trial, Punitive Damages, etc................. 77
Section 10.13. Amendment and Restatement................................... 77

                                      iii

 
Schedules and Exhibits:
 
Schedule 1           Lender Schedule
Schedule 2           Disclosure Schedule
Schedule 3           Security Schedule
Schedule 4           Insurance Schedule
Schedule 5           Pro Forma EBITDA
Schedule 6           Offering Documents
Schedule 7           Borrowing Base Procedures
 
 
Exhibit A            Promissory Note
Exhibit B            Borrowing Notice
Exhibit C            Continuation/Conversion Notice
Exhibit D            Forms of Letter of Credit
Exhibit E            Letter of Credit Application and Agreement
Exhibit F            Certificate Accompanying Financial Statements
Exhibit G-1          Opinion of In-House Counsel for Restricted Persons
Exhibit G-2          Opinion of Counsel for Restricted Persons
Exhibit G-3          Opinion of Counsel for Restricted Persons
Exhibit H            Borrowing Base Report
Exhibit I            Environmental Compliance Certificate
Exhibit J            Assignment and Acceptance Agreement
Exhibit K            Intercreditor Agreement

                                       iv

 
                      AMENDED AND RESTATED CREDIT AGREEMENT

     THIS AMENDED AND RESTATED CREDIT AGREEMENT is made as of November 17, 1998,
by and among PLAINS MARKETING, L.P. ("Borrower"), a Delaware limited
partnership, ALL AMERICAN PIPELINE, L.P. ("All American"), a Texas limited
partnership, PLAINS ALL AMERICAN PIPELINE, L.P. ("Plains MLP"), a Delaware
limited partnership, and BANKBOSTON, N.A., as administrative agent (in such
capacity, "Administrative Agent"), BANCBOSTON ROBERTSON STEPHENS INC., as
syndication agent (in such capacity, "Syndication Agent"), ING BARING FURMAN
SELZ LLC, as documentation agent (in such capacity, "Documentation Agent")  and
the Lenders referred to below.

                                    RECITALS

     1.   Plains Marketing & Transportation Inc., a Delaware corporation
("PMTI"), is party to a Credit Agreement dated as of July 30, 1998 with
Administrative Agent, BancBoston Robertson Stephens Inc., as Syndication Agent,
ING (U.S.) Capital Corporation, as Documentation Agent, and certain Lenders
named therein (the "Existing Agreement").

     2.   On the Funding Date (as defined herein) PMTI and certain other
Subsidiaries of Plains Resources Inc. ("Resources") will be merged with and into
Resources and the liabilities of PMTI and such Subsidiaries of Resources will be
assumed by Resources.

     3.   Pursuant to the Contribution Agreement (as defined herein) on the
Funding Date all of the assets and liabilities of PMTI and certain other
Subsidiaries of Resources to be acquired and assumed by Resources pursuant to
such merger will be conveyed to and assumed by Borrower.

     4.   The Administrative Agent and Lenders party to the Existing Agreement
have consented to such transactions, subject to the agreement by Borrower to
amend and restate the Existing Agreement as provided herein;

     In consideration of the mutual covenants and agreements contained herein
the parties hereto agree as follows:


                     ARTICLE I - Definitions and References

      Section 1.1.  Defined Terms.  As used in this Agreement, each of the
following terms has the meaning given to such term  in this Section 1.1 or in
the sections and subsections referred to below:

     "Acceptable Issuer" means any national or state bank or trust company which
is organized under the laws of the United States of America or any state thereof
or any branch licensed to operate under the laws of the United States of America
or any state thereof, which is a branch of a bank organized under any country
which is a member of the Organization for Economic 

 
Cooperation and Development, in each case which has capital, surplus and
undivided profits of at least $500,000,000 and whose commercial paper is rated
at least P-1 by Moody's or A-1 by S&P.

     "Account" shall have the meaning given that term in the UCC.

     "Account Debtor" means any Person who is or who may become obligated under,
with respect to, or on account of, an Account.

     "Adjusted Eurodollar Rate" means, with respect to each particular
Eurodollar Loan and the related Interest Period, the rate per annum (rounded
upwards, if necessary, to the nearest 1/1000 of 1%) determined by Administrative
Agent to be equal to the quotient obtained by dividing (i) the Eurodollar Rate
for such Eurodollar Loan for such Interest Period by (ii) 1 minus the Reserve
Requirement for such Eurodollar Loan for such Interest Period.  The Adjusted
Eurodollar Rate for any Eurodollar Loan shall change whenever the Reserve
Requirement changes.

     "Administrative Agent" means BankBoston, N.A., as Administrative Agent
hereunder, and its successors in such capacity.

     "Affiliate" means, as to any Person, each other Person that directly or
indirectly (through one or more intermediaries or otherwise) controls, is
controlled by, or is under common control with, such Person.  A Person shall be
deemed to be "controlled by" any other Person if such other Person possesses,
directly or indirectly, power

          (a) to vote 5% or more of the securities (on a fully diluted basis)
     having ordinary voting power for the election of directors or managing
     general partners; or

          (b) to direct or cause the direction of the management and policies of
     such Person whether by contract or otherwise.

     "Affiliate Agreements" means the Crude Oil Marketing Agreement, the Omnibus
Agreement and the Contribution Agreement.

     "Agreement" means this Amended and Restated Credit Agreement.

     "All American" means All American Pipeline, L.P., a Texas limited
partnership.

     "All American Agreement" means that certain Credit Agreement of even date
herewith among Borrower, All American, Plains MLP, the Agents named therein and
certain financial institutions as Lenders.

     "All American Revolver Availability" means for any day, the unutilized
portion available on such day of the commitment for revolving credit loans to
All American pursuant to the All American Agreement.

                                       2

 
     "All American Term Loans" means those certain loans made to All American
pursuant to the All American Agreement which are evidenced by a "Term Note" (as
such term is defined in the All American Agreement).

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

     "Applicable Leverage Level" means the level set forth below that
corresponds to the ratio of (i) Consolidated Funded Indebtedness of Plains MLP
and its Subsidiaries to (ii) the Consolidated EBITDA for the applicable period
of four Fiscal Quarters (the "Leverage Ratio"):

   Applicable
 Leverage Level              Leverage Ratio
- ----------------            ----------------
 
Level I               greater than or equal to 4.0
                                 to 1.0
 
Level II              greater than or equal to 3.0
                    to 1.0 but less than 4.0 to 1.0
 
Level III             greater than or equal to 2.0
                    to 1.0 but less than 3.0 to 1.0

Level IV                  less than 2.0 to 1.0

The Leverage Ratio will be determined quarterly by Administrative Agent within
two (2) Business Days after Administrative Agent's receipt of Plains MLP's
Consolidated financial statements for the immediate preceding Fiscal Quarter
based upon:  (i) Consolidated Funded Indebtedness as of the end of such Fiscal
Quarter, and (ii) the Consolidated EBITDA for the four Fiscal Quarters ending
with such Fiscal Quarter.  The Applicable Leverage Level shall become effective
upon such determination of the Leverage Ratio by Administrative Agent and shall
remain effective until the next such determination by Administrative Agent of
the Leverage Ratio.  From the date hereof until the date the Administrative
Agent has determined the Leverage Ratio based on the December 31, 1998 Fiscal
Quarter, the Applicable Leverage Level shall be Level III.

     "Applicable Rating Level" means, for any day, the level set forth below
that corresponds to the higher of the ratings publicly announced by Moody's or
S&P, as applicable on that day, to the All American Term Loans; provided that if
ratings announced by Moody's and S&P differ by more than two (2) levels on such
day, then the Applicable Rating Level shall be based upon the level which is one
level lower than the higher.

                                       3

 
  Applicable                      
 Rating Level     Moody's    S&P  
- ---------------   -------   ----- 
    Level A       *Baa3    *BBB-
    Level B      **Baa3   **BBB-

"*" means greater than or equal to and "**" means less than.  If neither Moody's
or S&P shall have in effect a rating for the All American Term Loans, then the
Applicable Rating Level shall be deemed to be Level B.  If the rating system of
either rating agency shall change, or if a rating agency shall cease to be in
the business of rating corporate debt obligations, Plains MLP and the Lenders
shall negotiate in good faith to amend this definition to reflect such changed
rating system or the unavailability of ratings from such rating agency, but
until such an agreement shall be reached, the Applicable Rating Level shall be
based only upon the rating by the remaining rating agency.

     "Approved Eligible Receivables" means each Eligible Receivable (other than
Eligible Exchange Balances) (a) from a Person whose Debt Rating is either at
least Baa3 by Moody's or at least BBB- by S&P; (b) fully and unconditionally
guaranteed as to payment by a Person whose Debt Rating is either at least Baa3
by Moody's or at least BBB- by S&P; (c) from any other Person Currently Approved
by Majority Lenders; or (d) fully covered by a letter of credit from an
Acceptable Issuer.

     "Available Cash" has the meaning given such term in the Partnership
Agreement.

     "Base Rate" means the higher of (a) the annual rate of interest announced
from time to time by Administrative Agent at its "base rate" at its head office
in Boston, Massachusetts, or (b) the Federal Funds Rate plus one-half percent
(0.5%) per annum; provided that such rate may not be the lowest rate at which
funds are made available to customers of Administrative Agent at such time.
Each change in the Base Rate shall become effective without prior notice to
Borrower automatically as of the opening of business on the date of such change
in the Base Rate.

     "Base Rate Loan" means a Loan which does not bear interest at the Adjusted
Eurodollar Rate.

     "Borrower" means Plains Marketing, L.P., a Delaware limited partnership.

     "Borrowing" means a borrowing of new Loans of a single Type pursuant to
Section 2.2 or a Continuation or Conversion of all or a portion of an existing
Loan (whether alone or as a combination with a new Loan) into a single Type
(and, in the case of Eurodollar Loans, with the same Interest Period) pursuant
to Section 2.3.

     "Borrowing Base" means the remainder of (a) minus (b) below as of the date
of determination:

     (a) the sum of the following as of the date of determination :

          (i) 100% of Eligible Cash Equivalents; plus

                                       4

 
          (ii) 90% of Approved Eligible Receivables; plus

          (iii) the lesser of (A) 85% of Other Eligible Receivables or (B) 1/3
     of the sum of the amounts of clauses (a)(i) plus (a)(ii) [(i.e., (a)(i)
     plus (a)(ii) must be 75% of (a)(i) plus (a)(ii) plus (a)(iii); plus

          (iv) 85% of Eligible Margin Deposits; plus

          (v) the lesser of (A) 95% of Hedged Eligible Inventory plus 100% of
     Other Eligible Inventory Value or (B) $40,000,000; plus

          (vi) 80% of Eligible Exchange Balances, plus

          (vii) 100% of all Paid but Unexpired Letters of Credit

     MINUS (b) the following as of the date of determination:

          (i) 100% of First Purchase Crude Payables; plus

          (ii) 100% of Other Priority Claims, plus

          (iii)  The Estimate Adjustment Amount as provided in Section 2.13.

     "Borrowing Notice" means a written or telephonic request, or a written
confirmation, made by Borrower which meets the requirements of Section 2.2.

     "Business Day" means a day, other than a Saturday or Sunday, on which
commercial banks are open for business with the public in Boston, Massachusetts.
Any Business Day in any way relating to Eurodollar Loans (such as the day on
which an Interest Period begins or ends) must also be a day on which, in the
judgment of Administrative Agent, significant transactions in dollars are
carried out in the London interbank eurocurrency market.

     "Capital Lease" means a lease with respect to which the lessee is required
concurrently to recognize the acquisition of an asset and the incurrence of a
liability in accordance with GAAP.

     "Capital Lease Obligation" means, with respect to any Person and a Capital
Lease, the amount of the obligation of such Person as the lessee under such
Capital Lease which would, in accordance with GAAP, appear as a liability on a
balance sheet of such Person.

     "Cash and Carry Purchases" means purchases of crude oil for physical
storage at a Plains Terminal or in transit in pipelines Currently Approved by
Majority Lenders which constitutes Hedged Eligible Inventory.

     "Cash Equivalents" means Investments in:

                                       5

 
     (a)  marketable obligations, maturing within 12 months after acquisition
thereof, issued or unconditionally guaranteed by the United States of America or
an instrumentality or agency thereof and entitled to the full faith and credit
of the United States of America;

     (b)  demand deposits and time deposits (including certificates of deposit)
maturing within 12 months from the date of deposit thereof, (i) with any office
of any Lender or (ii) with a domestic office of any national or state bank or
trust company which is organized under the Laws of the United States of America
or any state therein, which has capital, surplus and undivided profits of at
least $500,000,000, and whose long-term certificates of deposit are rated at
least Aa3 by Moody's or AA- by S&P;

     (c)  repurchase obligations with a term of not more than seven days for
underlying securities of the types described in subsection (a) above entered
into with (i) any Lender or (ii) any other commercial bank meeting the
specifications of subsection (b) above;

     (d)  open market commercial paper, maturing within 270 days after
acquisition thereof, which are rated at least P-1 by Moody's or A-1 by S&P; and

     (e)  money market or other mutual funds substantially all of whose assets
comprise securities of the types described in subsections (a) through (d) above.

     "Change of Control" means the occurrence of any of the following events:
(i) an event or series of events by which any Person or other entity or group of
Persons or other entities acting in concert as a partnership or other group (a
"Group of Persons") shall, as a result of a tender or exchange offer, open
market purchases, privately negotiated purchases, merger, consolidation or
otherwise, have become the beneficial owner (within the meaning of Rule 13d-3
under the Securities Exchange Act of 1934, as amended) of (A) 50% or more of the
combined voting power of the then outstanding voting stock of Resources, in the
case of any Person or Group of Persons constituting or controlled by Affiliates
of Kayne Anderson Investment Management, Inc., or (B) 40% or more of such
combined voting power in the case of any other Person or Group of Persons, (ii)
during any period of two consecutive years (A) the members of the board of
directors of Resources (the "Board") as of January 1, 1998, (B) any director
elected thereafter in any annual meeting of the stockholders of Resources upon
the recommendation of the Board, and (C) any other member of the Board who will
be recommended or elected to succeed those Persons described in subclauses (A)
and (B) of this clause (ii) by a majority of such Persons who are then members
of the Board, cease for any reason to constitute collectively a majority of the
Board then in office, (iii) the direct or indirect sale, lease, exchange or
other transfer of all or substantially all of the Consolidated assets of
Resources and its Subsidiaries, to any Person or Group of Persons, or (iv)
Resources, either directly or through a Wholly Owned Subsidiary of Resources,
shall cease to be the legal and beneficial owner (as defined above) of more than
50% of the voting power of the outstanding voting stock of General Partner, or
General Partner shall cease to be the sole legal and beneficial owner (as
defined above) of all of the general partner interests (including all securities
which are convertible into general partner interests), of Plains MLP, All
American, or Borrower, (v) any Person or Group of Persons other than Resources
or any Subsidiary of Resources shall be the beneficial owner (as defined above)
of 50% or more of the combined voting power of the then total partnership
interests in Plains MLP, or (vi) Resources 

                                       6

 
and its Wholly Owned Subsidiaries taken as a whole shall hold legal and
beneficial ownership of issued and outstanding partnership interests of Plains
MLP representing less than 5% of the total outstanding partnership interests of
Plains MLP.

     "Code" means the Internal Revenue Code of 1986, as amended from time to
time, together with all rules and regulations promulgated with respect thereto.

     "Collateral" means all property of any kind which is subject to a Lien in
favor of Lenders (or in favor of Administrative Agent for the benefit of
Lenders) or which, under the terms of any Security Document, is purported to be
subject to such a Lien, in each case granted or created to secure all or part of
the Obligations.

     "Commitment Period" means the period from and including the date hereof
until July 31, 2001 (or, if earlier, the day on which (i) the obligation of
Lenders to make Loans hereunder and the obligations of LC Issuer to issue
Letters of Credit hereunder have terminated, (ii) the obligation of LC Issuer to
issue Letters of Credit hereunder has terminated, or (iii) the Notes first
become due and payable in full, whichever shall first occur).

     "Consolidated" refers to the consolidation of any Person, in accordance
with GAAP, with its properly consolidated subsidiaries.  References herein to a
Person's Consolidated financial statements, financial position, financial
condition, liabilities, etc. refer to the consolidated financial statements,
financial position, financial condition, liabilities, etc. of such Person and
its properly consolidated subsidiaries.

     "Consolidated EBITDA" means, for any four-Fiscal Quarter period, the sum of
(1) the Consolidated Net Income of Plains MLP and its Subsidiaries during such
period, plus (2) all interest expense which was deducted in determining such
Consolidated Net Income for such period, plus (3) all income taxes (including
any franchise taxes to the extent based upon net income) which were deducted in
determining such Consolidated Net Income, plus (4) all depreciation,
amortization (including amortization of good will and debt issue costs) and
other non-cash charges (including any provision for the reduction in the
carrying value of assets recorded in accordance with GAAP) which were deducted
in determining such Consolidated Net Income, minus (5) all non-cash items of
income which were included in determining such Consolidated Net Income.  For the
Fiscal Quarters preceding the date hereof, Consolidated EBITDA shall be mean the
pro forma Consolidated EBITDA reflected on Schedule 5 for such Fiscal Quarter.

     "Consolidated Funded Indebtedness" means as of any date, the sum of the
following (without duplication):  (i) all Indebtedness which is classified as
"long-term indebtedness" on a consolidated balance sheet of Plains MLP and its
Consolidated Subsidiaries prepared as of such date in accordance with GAAP and
any current maturities and other principal amount in respect of such
Indebtedness due within one year but which was classified as "long-term
indebtedness" at the creation thereof, (ii) indebtedness for borrowed money of
Plains MLP and its Consolidated Subsidiaries outstanding under a revolving
credit or similar agreement providing for borrowings (and renewals and
extensions thereof) over a period of more than one year, notwithstanding the
fact that any such borrowing is made within one year of the expiration of such
agreement, and (iii) 

                                       7

 
Indebtedness in respect of Capital Leases of Plains MLP and its Consolidated
Subsidiaries; provided, however, Consolidated Funded Indebtedness shall not
include Indebtedness in respect of letters of credit or in respect of Cash and
Carry Purchases.

     "Consolidated Net Income" means, for any period, Plains MLP's  and its
Subsidiaries' gross revenues for such period, including any cash dividends or
distributions actually received from any other Person during such period, minus
Plains MLP's and its Subsidiaries' expenses and other proper charges against
income (including taxes on income to the extent imposed), determined on a
Consolidated basis after eliminating earnings or losses attributable to
outstanding minority interests and excluding the net earnings of any Person
other than a Subsidiary in which Plains MLP or any of its Subsidiaries has an
ownership interest.  Consolidated Net Income shall not include any gain or loss
from the sale of assets or any extraordinary gains or losses.

     "Consolidated Net Worth" means the remainder of all Consolidated assets, as
determined in accordance with GAAP, of Plains MLP and its Subsidiaries minus the
sum of (a) Plains MLP's Consolidated liabilities, as determined in accordance
with GAAP, and (b) all outstanding Minority Interests.  The effect of any
increase or decrease in net worth in any period as a result of any unrealized
gains or losses from a mark to market of any Hedging Contracts not reflected in
the determination of net income but reflected in the determination of
comprehensive income shall be excluded in determining Consolidated Net Worth.
"Minority Interests" means the book value of any equity interests in any of
Plains MLP's Subsidiaries (exclusive of the general partner interests held by
the General Partner in Marketing, All American or any other Restricted Person of
up to two percent (2%) of the aggregate ownership interest in any such Person)
which equity interests are owned by a Person other than Plains MLP or a Wholly
Owned Subsidiary of Plains MLP.

     "Continuation/Conversion Notice" means a written or telephonic request,
or a written confirmation, made by Borrower which meets the requirements of
Section 2.3.

     "Continue", "Continuation", and "Continued" shall refer to the continuation
pursuant to Section 2.3 hereof of a Eurodollar Loan as a Eurodollar Loan from
one Interest Period to the next Interest Period.

     "Contribution Agreement" means that certain Contribution, Conveyance and
Assumption Agreement between Resources, Plains MLP, Borrower and certain other
parties, subject to Section 1.3.

     "Convert", "Conversion", and "Converted" shall refer to a conversion
pursuant to Section 2.3 or Article III of one Type of Loan into another Type of
Loan.

     "Crude Oil Marketing Agreement" means that certain Crude Oil Marketing
Agreement among Resources, Plains Illinois Inc., Stocker Resources, L.P.,
Calumet Florida, Inc. and Marketing, subject to Section 1.3.

     "Currently Approved by Majority Lenders" means such Person (including a
limit on the maximum credit exposure to any such Person), storage location,
pipeline, form of Letter of Credit or other matter as the case may be, as
reflected in the most recent written notice given by 

                                       8

 
Administrative Agent to Borrower as being approved by Majority Lenders. Each
such written notice will supersede and revoke each prior notice.

     "Cushing Terminal" means that certain storage facility owned by Borrower
located in Cushing, Oklahoma.

     "Debt Rating" means with respect to a Person, the rating then in effect by
a Rating Agency for the long term senior unsecured non-credit enhanced debt of
such Person.

     "Default" means any Event of Default and any default, event or condition
which would, with the giving of any requisite notices and the passage of any
requisite periods of time, constitute an Event of Default.

     "Default Rate" means, at the time in question, (i) three and three-fourths
percent (3.75%) per annum plus the Adjusted Eurodollar Rate then in effect for
any Eurodollar Loan (up to the end of the applicable Interest Period) or (ii)
two percent (2%) per annum plus the Base Rate for each Base Rate Loan; provided,
however, the Default Rate shall never exceed the Highest Lawful Rate.

     "Default Rate Period" means (i) any period during which an Event of
Default, other than pursuant to Section 8.1 (a) or (b), is continuing, provided
that such period shall not begin until notice of the commencement of the Default
Rate has been given to Borrower by Administrative Agent upon the instruction by
Majority Lenders and (ii) any period during which any Event of Default pursuant
to Section 8.1 (a) or (b) is continuing unless Borrower has been notified
otherwise by Administrative Agent upon the instruction by Majority Lenders.

     "Disclosure Schedule" means Schedule 2 hereto.

     "Domestic Lending Office" means, with respect to any Lender, the office of
such Lender specified as its "Domestic Lending Office" in the Lender Schedule
hereto, or such other office as such Lender may from time to time specify to
Borrower and Administrative Agent; with respect to LC Issuer, the office,
branch, or agency through which it issues Letters of Credit; and, with respect
to Administrative Agent, the office, branch, or agency through which it
administers this Agreement.

     "Eligible Cash Equivalents" means Cash Equivalents in which Borrower has
lawful and absolute title, which are free from any express or implied at law
Lien, trust or other beneficial interest, in which Administrative Agent holds a
fully perfected first-priority security interest prior to the rights of, and
enforceable as such against, any other Persons pursuant to an account agreement
satisfactory to Administrative Agent and which remain under the sole dominion
and control of Administrative Agent.

     "Eligible Exchange Balances" means each Approved Eligible Receivable
(including for this purpose only either the right to receive crude oil in kind
or to receive money) arising from the trading, lending, borrowing or exchange of
crude oil, net of any netted obligations or other offsets or counterclaims
determined in accordance with prices set forth in the applicable exchange

                                       9

 
contracts, based on current value at the Market Price, in which Borrower has
lawful and absolute title, which is not subject to any Lien in favor of any
Person (other than Permitted Inventory Liens), and which is subject to a fully
perfected first-priority security interest (subject only to Permitted Inventory
Liens) in favor of Administrative Agent pursuant to the Loan Documents prior to
the rights of, and enforceable as such against, any other Persons minus without
duplication the amount of any Permitted Inventory Lien on any crude oil
receivable in kind.

     "Eligible Inventory" means inventories of crude oil in which Borrower has
lawful and absolute title (specifically excluding, however, crude oil line fill
carried in the SJV Gathering System or in the All American Pipeline), which are
not subject to any Lien in favor of any Person (other than Permitted Inventory
Liens), which are subject to a fully perfected first priority security interest
(subject only to Permitted Inventory Liens) in favor of Administrative Agent
pursuant to the Loan Documents prior to the rights of, and enforceable as such
against, any other Person, which are otherwise satisfactory to Majority Lenders
in their reasonable business judgment and which are located in storage locations
(including pipelines) which are either (a) owned by a Restricted Person or (b)
Currently Approved by Majority Lenders minus without duplication the amount of
any Permitted Inventory Lien on any such inventory.

     "Eligible Margin Deposit" means net equity value of investments by Borrower
in margin deposit accounts with commodities brokers on nationally recognized
exchanges subject to a perfected security interest in favor of Administrative
Agent and a three-party agreement among Borrower, Administrative Agent and the
depository institution, in form and substance satisfactory to Administrative
Agent.

     "Eligible Receivables" means, at the time of any determination thereof (and
without duplication), each Account and, with respect to each determination made
on or after the 20th day of each calendar month and prior to the first day of
the next calendar month, each amount which will be, in the good faith estimate
reasonably determined by Borrower, an Account of the Borrower  with respect to
sales and deliveries of crude oil during such calendar month or deliveries of
crude oil during the next calendar month under firm written purchase and sale
agreements, in either event as to which the following requirements have been
fulfilled (or as to future Accounts, will be fulfilled as of the date of such
sales and deliveries of crude oil), to the reasonable satisfaction of
Administrative Agent:

          (i) Borrower has lawful and absolute title to such Account;

          (ii) such Account is a valid, legally enforceable obligation of an
     Account Debtor payable in United States dollars, arising from the sale and
     delivery of crude oil to such Person in the United States of America in the
     ordinary course of business of Borrower, to the extent of the volumes of
     crude oil delivered to such Person prior to the date of determination;

          (iii)  there has been excluded from such Account (A) any portion that
     is subject to any dispute, rejection, loss, non-conformance , counterclaim
     or other claim or defense on the part of any Account Debtor or to any claim
     on the part of any Account Debtor denying liability under such Account, and
     (B) the amount of any account payable or other 

                                       10

 
     liability owed by Borrower to the Account Debtor on such Account, whether
     or not a specific netting agreement may exist, excluding, however, any
     portion of any such account payable or other liability which is at the time
     in question covered by a Letter of Credit;

          (iv) Borrower has the full and unqualified right to assign and grant a
     security interest in such Account to Administrative Agent as security for
     the Obligation;

          (v) such Account (A) is evidenced by an invoice rendered to the
     Account Debtor, or (B) represents the uninvoiced amount in respect to
     actual deliveries of crude oil not earlier than 45 days prior to the date
     of determination and is governed by a purchase and sale agreement,
     exchange agreement or other written agreement, and in either event such
     Account is not evidenced by any promissory note or other instrument;

          (vi) such Account is not subject to any Lien in favor of any Person
     and is subject to a fully perfected first priority security interest in
     favor of Administrative Agent pursuant to the Loan Documents, prior to the
     rights of, and enforceable as such against, any other Person except for a
     Lien in respect of First Purchase Crude Payables;

          (vii)  such Account is due not more than 30 days following the last
     day of the calendar month in which the crude oil delivery occurred and is
     not more than 30 days past due (except that Accounts of a single Account
     Debtor in excess of $500,000 which are not Approved Eligible Receivables
     shall be excluded from Eligible Receivables if not paid within three
     Business Days after the due date);

          (viii)  such Account is not payable by an Account Debtor with more
     than twenty percent (20%) of its Accounts to Borrower that are outstanding
     more than 60 days from the invoice date;

          (ix) the Account Debtor in respect of such Account (A) is located, is
     conducting significant business or has significant assets in the United
     States of America or is a Person Currently Approved by Majority Lenders,
     (B) is not an Affiliate of Borrower, and (C) is not the subject of any
     event of the type described in Section 8.1(i);

          (x) the Account Debtor in respect of such Account is not a
     governmental authority, domestic or foreign; and

          (xi) such Account is not the obligation of an Account Debtor that
     Administrative Agent or Majority Lenders determine in good faith that there
     is a legitimate concern over the timing or collection of such receivable.

     "Eligible Transferee" means a Person which either (a) is a Lender, or (b)
is consented to as an Eligible Transferee by Administrative Agent and, so long
as no Default or Event of Default is continuing, by Borrower, which consents in
each case will not be unreasonably withheld (provided that no Person organized
outside the United States may be an Eligible Transferee if Borrower would be
required to pay withholding taxes on interest or principal owed to such Person).

                                       11

 
     "Environmental Laws" means any and all Laws relating to the environment or
to emissions, discharges, releases or threatened releases of pollutants,
contaminants, chemicals, or industrial, toxic or hazardous substances or wastes
into the environment including ambient air, surface water, ground water, or
land, or otherwise relating to the manufacture, processing, distribution use,
treatment, storage, disposal, transport, or handling of pollutants,
contaminants, chemicals, or industrial, toxic or hazardous substances or wastes.

     "ERISA" means the Employee Retirement Income Security Act of 1974, as
amended from time to time, together with all rules and regulations promulgated
with respect thereto.

     "ERISA Affiliate" means each Restricted Person and all members of a
controlled group of corporations and all trades or businesses (whether or not
incorporated) under common control that, together with such Restricted Person,
are treated as a single employer under Section 414 of the Code.

     "ERISA Plan" means any employee pension benefit plan subject to Title IV of
ERISA maintained by any ERISA Affiliate with respect to which any Restricted
Person has a fixed or contingent liability.

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

     "Eurodollar Loan" means a Loan that bears interest at a rate based upon the
Adjusted Eurodollar Rate.

     "Eurodollar Rate" means, for any Eurodollar Loan within a Borrowing and
with respect to the related Interest Period therefor, the rate per annum
(rounded upwards, if necessary, to the nearest 1/1000 of 1%) appearing on
Telerate Page 3750 (or any successor page) as the London interbank offered rate
for deposits in Dollars at approximately 11:00 a.m. (London time) two Business
Days prior to the first day of such Interest Period for a term comparable to
such Interest Period.  If for any reason such rate is not available, the term
"Eurodollar Rate" shall mean, for any Eurodollar Loan within a Borrowing and
with respect to the related Interest Period therefor, the rate per annum
(rounded upwards, if necessary, to the nearest 1/1000 of 1%) appearing on
Reuters Screen LIBO Page as the London interbank offered rate for deposits in
Dollars at approximately 11:00 a.m. (London time) two Business Days prior to the
first day of such Interest Period for a term comparable to such Interest Period;
provided, however, if more than one rate is specified on Reuters Screen LIBO
Page, the applicable rate shall be the arithmetic mean of all such rates
(rounded upwards, if necessary, to the nearest 1/1000 of 1%).

     "Eurodollar Rate Margin" means the percent per annum set forth below on the
Applicable Leverage Level and Applicable Rating Level in effect on such date.

                                       12

 
 Applicable Leverage Level      Applicable Rating Level
- -------------------------------------------------------
                                 Level A       Level B
                                -----------------------
Level I                            1.50%         1.75%
Level II                           1.25%         1.50%
Level III                          1.00%         1.25%
Level IV                            .75%         1.00%

Changes in the Eurodollar Rate Margin will occur automatically without prior
notice as changes in the Applicable Leverage Level or Applicable Rating Level
occur.  Administrative Agent will give notice promptly to Borrower and the
Lenders of Applicable Rating Level changes in the Eurodollar Rate Margin.

     "Event of Default" has the meaning given to such term in Section 8.1.

     "Existing Agreement" means that certain Credit Agreement among PMTI,
Administrative Agent, ING (U.S.) Capital Corporation, as Documentation Agent,
BancBoston Securities, Inc., as Syndication Agent and other financial
institutions dated as of July 30, 1998, as amended, restated or supplemented to
the date hereof.

     "Facility Usage" means, at the time in question, the aggregate amount of
outstanding Loans and LC Obligations at such time.

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

     "First Purchase Crude Payables" means the unpaid amount of any payable
obligation related to the purchase of crude oil by Borrower which Administrative
Agent determines will be secured by a statutory Lien, including but not limited
to the statutory Liens created under the laws of Texas, New Mexico and Wyoming,
to the extent such payable obligation is not at the time in question covered by
a Letter of Credit.

     "Fiscal Quarter" means a three-month period ending on March 31, June 30,
September 30 or December 31 of any year.

                                       13

 
     "Fiscal Year" means a twelve-month period ending on December 31 of any
year.

     "Funding Date" means the Business Day, no later than four (4) Business Days
after the date of this Agreement, on which the Offering is completed.

     "GAAP" means those generally accepted accounting principles and practices
which are recognized as such by the Financial Accounting Standards Board (or any
generally recognized successor) and which, in the case of Plains MLP and its
Consolidated Subsidiaries, are applied for all periods after the date hereof in
a manner consistent with the manner in which such principles and practices were
applied to the Initial Financial Statements.  If any change in any accounting
principle or practice is required by the Financial Accounting Standards Board
(or any such successor) in order for such principle or practice to continue as a
generally accepted accounting principle or practice, all reports and financial
statements required hereunder with respect to Plains MLP or with respect to
Plains MLP and its Consolidated Subsidiaries may be prepared in accordance with
such change, but all calculations and determinations to be made hereunder may be
made in accordance with such change only after notice of such change is given to
each Lender, and Majority Lenders agree to such change insofar as it affects the
accounting of Plains MLP or of Plains MLP and its Consolidated Subsidiaries.

     "General Partner" means Plains All American Inc., a Delaware corporation.

     "Guarantors" means Plains MLP and all of its Subsidiaries (including All
American but excluding Borrower) and any other Person who has guaranteed some or
all of the Obligations and who has been accepted by Administrative Agent as a
Guarantor or any Subsidiary of Plains MLP which now or hereafter executes and
delivers a guaranty to Administrative Agent pursuant to Section 6.17.

     "Hazardous Materials" means any substances regulated under any
Environmental Law, whether as pollutants, contaminants, or chemicals, or as
industrial, toxic or hazardous substances or wastes, or otherwise.

     "Hedged Eligible Inventory" means Eligible Inventory, which has been (a)
hedged on the New York Mercantile Exchange arranged through brokers approved by
Administrative Agent and with whom a three party agreement among Borrower,
Administrative Agent and such broker has been entered in form and substance
satisfactory to Administrative Agent or (b) otherwise hedged in a manner
satisfactory to Majority Lenders.  The value of Hedged Eligible Inventory shall
be the volume of the inventory times the prices fixed in such hedge, minus all
storage, transportation and other applicable costs.

     "Hedging Contract" means (a) any agreement providing for options, swaps,
floors, caps, collars, forward sales or forward purchases involving interest
rates, commodities or commodity prices, equities, currencies, bonds, or indexes
based on any of the foregoing, (b) any option, futures or forward contract
traded on an exchange, and (c) any other derivative agreement or other similar
agreement or arrangement.

                                       14

 
     "Highest Lawful Rate" means, with respect to each Lender Party to whom
Obligations are owed, the maximum nonusurious rate of interest that such Lender
Party is permitted under applicable Law to contract for, take, charge, or
receive with respect to such Obligations.  All determinations herein of the
Highest Lawful Rate, or of any interest rate determined by reference to the
Highest Lawful Rate, shall be made separately for each Lender Party as
appropriate to assure that the Loan Documents are not construed to obligate any
Person to pay interest to any Lender Party at a rate in excess of the Highest
Lawful Rate applicable to such Lender Party.

     "Incentive and Option Plans" means the Plains All American Inc. 1998 Long-
Term Incentive Plan as in effect on the date hereof, the Plains All American
Inc. Management Incentive Plan as in effect on the date hereof and those certain
Transaction Grant Agreements disclosed in writing to Administrative Agent prior
to the date of this Agreement.

     "Indebtedness" of any Person means its Liabilities (without duplication) in
any of the following categories:

     (a)  Liabilities for borrowed money,

     (b)  Liabilities constituting an obligation to pay the deferred purchase
price of property or services,

     (c)  Liabilities evidenced by a bond, debenture, note or similar
instrument,

     (d)  Liabilities (other than reserves for taxes and reserves for contingent
obligations) which (i) would under GAAP be shown on such Person's balance sheet
as a liability and (ii) are payable more than one year from the date of creation
or incurrence thereof,

     (e)  Liabilities arising under Hedging Contracts (on a net basis to the
extent netting is provided for in the applicable Hedging Contract),

     (f)  Liabilities constituting principal under Capital Leases,

     (g)  Liabilities arising under conditional sales or other title retention
agreements,

     (h)  Liabilities owing under direct or indirect guaranties of Liabilities
of any other Person or otherwise constituting obligations to purchase or acquire
or to otherwise protect or insure a creditor against loss in respect of
Liabilities of any other Person (such as obligations under working capital
maintenance agreements, agreements to keep-well, or agreements to purchase
Liabilities, assets, goods, securities or services), but excluding endorsements
in the ordinary course of business of negotiable instruments in the course of
collection,

     (i)  Liabilities consisting of an obligation to purchase or redeem
securities or other property, if such Liabilities arises out of or in connection
with the sale or issuance of the same or similar securities or property (for
example, repurchase agreements, mandatorily redeemable preferred stock and
sale/leaseback agreements),

                                       15

 
     (j)  Liabilities with respect to letters of credit or applications or
reimbursement agreements therefor,

     (k)  Liabilities with respect to banker's acceptances, or

     (l)  Liabilities with respect to obligations to deliver goods or services
in consideration of advance payments therefor;

provided, however, that the "Indebtedness" of any Person shall not include
Liabilities that were incurred in the ordinary course of business by such Person
on ordinary trade terms to vendors, suppliers or other Persons providing goods
and services for use by such Person in the ordinary course of its business,
unless and until such Liabilities are outstanding more than 120 days after the
date the respective goods are delivered or the respective services are rendered,
other than Liabilities contested in good faith by appropriate proceedings, if
required, and for which adequate reserves are maintained on the books of such
Person in accordance with GAAP.

     "Initial Financial Statements" means the audited pro forma Consolidated
financial statements of Plains MLP as of September 30, 1998.

     "Insurance Schedule" means Schedule 4 attached hereto.

     "Interest Expense" means, with respect to any period, the sum (without
duplication) of the following (in each case, eliminating all offsetting debits
and credits between Plains MLP and its Subsidiaries and all other items required
to be eliminated in the course of the preparation of Consolidated financial
statements of Plains MLP and its Subsidiaries in accordance with GAAP): (a) all
interest and commitment fees in respect of Indebtedness of Plains MLP or any of
its Subsidiaries (including imputed interest on Capital Lease Obligations) which
are accrued during such period and whether expensed in such period or
capitalized; plus (b) all fees, expenses and charges in respect of letters of
credit issued for the account of Plains MLP or any of its Subsidiaries, which
are accrued during such period and whether expensed in such period or
capitalized.

     "Interest Payment Date" means (a) with respect to each Base Rate Loan, the
last day of each March, June, September and December, and (b) with respect to
each Eurodollar Loan, the last day of the Interest Period that is applicable
thereto.

     "Interest Period" means, with respect to each particular Eurodollar Loan in
a Borrowing, the period specified in the Borrowing Notice or
Continuation/Conversion Notice applicable thereto, beginning on and including
the date specified in such Borrowing Notice or Continuation/Conversion Notice
(which must be a Business Day), and ending one, two or three months thereafter,
as Borrower may elect in such notice; provided that:  (a) any Interest Period
which would otherwise end on a day which is not a Business Day shall be extended
to the next succeeding Business Day unless such Business Day falls in another
calendar month, in which case such Interest Period shall end on the next
preceding Business Day; (b) any Interest Period which begins on the last
Business Day in a calendar month (or on a day for which there is no numerically
corresponding day in the calendar month at the end of such Interest Period)
shall end on the last 

                                       16

 
Business Day in a calendar month; and (c) notwithstanding the foregoing, no
Interest Period may be selected that would end after the last day of the
Commitment Period.

     "Investment" means any investment made, directly or indirectly in any
Person, whether by acquisition of shares of capital stock, indebtedness or other
obligations or securities or by loan, advance, capital contribution or otherwise
and whether made in cash, by the transfer of property or by any other means.

     "Law" means any statute, law, regulation, ordinance, rule, treaty,
judgment, order, decree, permit, concession, franchise, license, agreement or
other governmental restriction of the United States or any state or political
subdivision thereof or of any foreign country or any department, province or
other political subdivision thereof.

     "LC Application" means any application for a Letter of Credit hereafter
made by Borrower to LC Issuer.

     "LC Collateral" has the meaning given to such term in Section 2.11(a).

     "LC Issuer" means BankBoston, N.A. in its capacity as the issuer of Letters
of Credit hereunder, and its successors in such capacity.  Administrative Agent
may, with the consent of Borrower and the Lender in question, appoint any Lender
hereunder as an LC Issuer in place of or in addition to BankBoston, N.A.

     "LC Obligations" means, at the time in question, the sum of all Matured LC
Obligations plus the maximum amounts which LC Issuer might then or thereafter be
called upon to advance under all Letters of Credit then outstanding.

     "Lease Rentals" means, with respect to any period, the sum of the rental
and other obligations required to be paid during such period by Plains MLP or
any Subsidiary of Plains MLP as lessee under all leases of real or personal
property (other than Capital Leases), excluding any amount required to be paid
by the lessee (whether or not therein designated as rental or additional rental)
on account of maintenance and repairs, insurance, taxes, assessments, water
rates and similar charges, provisions that, if at the date of determination, any
such rental or other obligations are contingent or not otherwise definitely
determinable by terms of the related lease, the amount of such obligations (i)
shall be assumed to be equal to the amount of such obligations for the period of
12 consecutive calendar months immediately preceding the date of determination
or (ii) if the related lease was not in effect during such preceding 12-month
period, shall be the amount estimated by a senior financial officer of General
Partner on a reasonable basis and in good faith.

     "Lender Parties" means Administrative Agent, Syndication Agent,
Documentation Agent, LC Issuer, and all Lenders.

     "Lender Schedule" means Schedule 1 hereto.

                                       17

 
     "Lenders" means each signatory hereto (other than Borrower and any
Restricted Person that is a party hereto), including BankBoston, N.A. in its
capacity as a Lender hereunder rather than as Administrative Agent and LC
Issuer, and the successors of each such party as holder of a Note.

     "Letter of Credit" means any letter of credit issued by LC Issuer hereunder
at the application of Borrower.

     "Liabilities" means, as to any Person, all indebtedness, liabilities and
obligations of such Person, whether matured or unmatured, liquidated or
unliquidated, primary or secondary, direct or indirect, absolute, fixed or
contingent, and whether or not required to be considered pursuant to GAAP.

     "Lien" means, with respect to any property or assets, any right or interest
therein of a creditor to secure Liabilities owed to it or any other arrangement
with such creditor which provides for the payment of such Liabilities out of
such property or assets or which allows such creditor to have such Liabilities
satisfied out of such property or assets prior to the general creditors of any
owner thereof, including any lien, mortgage, security interest, pledge, deposit,
production payment, rights of a vendor under any title retention or conditional
sale agreement or lease substantially equivalent thereto, tax lien, mechanic's
or materialman's lien, or any other charge or encumbrance for security purposes,
whether arising by Law or agreement or otherwise, but excluding any right of
offset which arises without agreement in the ordinary course of business.
"Lien" also means any filed financing statement, any registration of a pledge
(such as with an issuer of uncertificated securities), or any other arrangement
or action which would serve to perfect a Lien described in the preceding
sentence, regardless of whether such financing statement is filed, such
registration is made, or such arrangement or action is undertaken before or
after such Lien exists.

     "Loans" has the meaning given to such term in Section 2.1.

     "Loan Documents" means this Agreement, the Notes, the Security Documents,
the Letters of Credit, the LC Applications, and all other agreements,
certificates, documents, instruments and writings at any time delivered in
connection herewith or therewith (exclusive of term sheets and commitment
letters).

     "Majority Lenders" means Lenders whose aggregate Percentage Shares equal or
exceed sixty-six and two-thirds percent (66-2/3%).

     "Market Price" means on each day a spot price for the inventory of crude
oil being valued, determined by published prices and methodology approved by
Administrative Agent from time to time, based on an index gravity and grade of
crude oil at a delivery point reflecting as nearly as practical the actual
gravity, grade, and location of the crude oil being valued, adjusted to reflect
any differences in gravity and grade between the index crude oil and the actual
inventory and to reflect transportation costs or other appropriate location
price differential from the actual location to the index location.

                                       18

 
     "Material Adverse Change" means a material and adverse change, from the
state of affairs presented in the Initial Financial Statements or as represented
or warranted in any Loan Document, to (a) Plains MLP's Consolidated financial
condition, (b) Plains MLP's Consolidated operations, properties or prospects,
considered as a whole, (c) Borrower's ability to timely pay the Obligations, or
(d) the enforceability of the material terms of any Loan Document.

     "Material Market Open Position Loss" means a cumulative amount of net
losses resulting from open inventory positions of all Restricted Persons on a
mark to market basis during any period of 12 consecutive months in excess of
$5,000,000 (exclusive of linefill carried in the All American Pipeline).

     "Matured LC Obligations" means all amounts paid by LC Issuer on drafts or
demands for payment drawn or made under or purported to be under any Letter of
Credit and all other amounts due and owing to LC Issuer under any LC Application
for any Letter of Credit, to the extent the same have not been repaid to LC
Issuer (with the proceeds of Loans or otherwise).

     "Maximum Drawing Amount" means at the time in question the sum of the
maximum amounts which LC Issuer might then or thereafter be called upon to
advance under all Letters of Credit then outstanding.

     "Maximum Facility Amount" means the amount of $175,000,000, as such amount
may be reduced by Borrower from time to time as provided in Section 2.12.

     "Merger Agreement" means that certain Merger Agreement among Resources,
PMTI, and certain other Subsidiaries of Resources, subject to Section 1.3.

     "Moody's" means Moody's Investor Service, Inc., or its successor.

     "Note" has the meaning given to such term in Section 2.1.

     "Obligations" means all Liabilities from time to time owing by any
Restricted Person to any Lender Party under or pursuant to any of the Loan
Documents, including all LC Obligations. "Obligation" means any part of the
Obligations.

     "Offering" means the public issuance of limited partnership interests of
Plains MLP as described in the Preliminary Prospectus.

     "Offering Documents" means the documents listed on Schedule 6 hereto.

     "Omnibus Agreement" means that certain Omnibus Agreement between Resources,
Plains MLP, Borrower, All American and General Partner.

     "Open Position" means the aggregate volume of crude oil on which Restricted
Persons have commodity price risk, which may include, without limitation, (i)
the aggregate volume of crude oil owned for which Restricted Persons do not
have, on an aggregate basis, contracts for sale at a fixed price and (ii) the
aggregate volumes of crude oil under contracts for purchase for 

                                       19

 
which Restricted Persons do not have, on an aggregate basis, contracts for sale
on the substantially same pricing basis (i.e. at a fixed price for sale
substantially equivalent to or above the fixed price for purchase of such crude
oil, or at an index price for sale substantially equivalent to the index price
for purchase of such crude oil, or at an index price for sale substantially
equivalent to a margin above the index price for purchase of such crude oil).
"Open Position" shall not include, during the period from the first to the
25/th/ day of a calendar month, any volumes of crude oil which Restricted
Persons are obligated to gather in the next succeeding calendar month at a price
based upon the posted price from time to time in effect during such next
calendar month.

     "Other Eligible Inventory Value" means the following amount of Eligible
Inventory, other than Hedged Eligible Inventory: (a) if the WTI Price is less
than or equal to $30 per barrel, 80% of the product of the volume of such crude
oil times the Market Price, or (b) if the WTI Price is greater than $30 per
barrel the greater of (i) 70% of the product of the volume of such crude oil
times the Market Price or (ii) 80% of the product of the volume of such crude
oil times $30 per barrel; minus, in each case, all storage, transportation and
other applicable costs.  As used herein "WTI Price" means on each day the
Platt's Average Spot Price for West Texas intermediate crude oil (Cushing,
Oklahoma).

     "Other Eligible Receivable" means any Eligible Receivable which is not an
Approved Eligible Receivable nor an Eligible Exchange Balance.  The portions of
the aggregate of the Other Eligible Receivables owed by any obligor and its
Affiliates exceeding 20% of the aggregate amount of all Other Eligible
Receivables shall not be included without the prior written approval of the
Majority Lenders.

     "Other Priority Claims" means any account payable, obligation or liability
which Administrative Agent has determined has or will have a Lien upon or claim
against any Cash Equivalent, account or inventory of Borrower senior or equal in
priority to the security interests in favor of Administrative Agent for the
benefit of Lenders, in each case to the extent such Cash Equivalent, account or
inventory of Borrower is otherwise included in the determination of the
Borrowing Base and the included portion thereof has not already been reduced by
such Lien or claim.

     "Paid but Unexpired Letters of Credit" means, on any day, the maximum
drawing amount of Letters of Credit on such day where no underlying obligation
exists on such day, or if the amount of the Letter of Credit exceeds the
underlying obligation on such day, the amount of such excess.  As used herein,
"underlying obligation" includes without limitation, all existing and future
obligations to the beneficiary of such Letter of Credit in respect of crude oil
purchased or received on or prior to such day or in respect of crude oil
Borrower is then obligated to purchase or receive or has then nominated to
purchase or receive.

     "Partnership Agreement" means the Amended and Restated Agreement of Limited
Partnership of Plains MLP, subject to Section 1.3.

     "Percentage Share" means, with respect to any Lender (a) when used in
Sections 2.1, 2.2 or 2.12, in any Borrowing Notice or when no Loans are
outstanding hereunder, the percentage set 

                                       20

 
forth opposite such Lender's name on the Lender Schedule hereto, and (b) when
used otherwise, the percentage obtained by dividing (i) the sum of the unpaid
principal balance of such Lender's Loans at the time in question plus the
Matured LC Obligations which such Lender has funded pursuant to Section 2.9(c)
plus the portion of the Maximum Drawing Amount which such Lender might be
obligated to fund under Section 2.9(c), by (ii) the sum of the aggregate unpaid
principal balance of all Loans at such time plus the aggregate amount of LC
Obligations outstanding at such time.

     "Permitted Acquisitions" means (A) the acquisition of all of the capital
stock or other equity interest in a Person (exclusive of general partner
interests held by General Partner or another Wholly Owned Subsidiary of
Resources not in excess of a 1% economic interest) and exclusive of director
qualifying shares and other equity interests required to be held by an Affiliate
to comply with a requirement of Law) or (B) any acquisition of all or a portion
of the business, assets or operations of a Person, provided that (i) prior to
and after giving effect to such acquisition no Default or Event of Default shall
have occurred and be continuing; (ii) all representations and warranties shall
be true and correct as if restated immediately following the consummation of
such acquisition; and (iii) substantially all of such business, assets and
operations so acquired, or of the Person so acquired, consists of crude oil
and/or gas marketing, gathering, transportation, storage, terminaling and
pipeline operation.

     "Permitted Inventory Liens" means any Lien, and the amount of any Liability
secured thereby, on crude oil inventory which would be a Permitted Lien under
Section 7.2(d).

     "Permitted Investments" means (a) Cash Equivalents, (b) Investments
described in the Disclosure Schedule, (c) Investments by Plains MLP or any of
its Subsidiaries in any Wholly Owned Subsidiary of Plains MLP which is a
Guarantor and (d) Permitted Acquisitions.

     "Permitted Lien" has the meaning given to such term in Section 7.2.

     "Person" means an individual, corporation, partnership, limited liability
company, association, joint stock company, trust or trustee thereof, estate or
executor thereof, unincorporated organization or joint venture, Tribunal, or any
other legally recognizable entity.

     "Plains MLP" means Plains All American Pipeline, L.P., a Delaware limited
partnership.

     "Plains Terminal" means either the storage terminal in Ingleside, Texas
owned by Borrower or the Cushing Terminal.

     "Preliminary Prospectus" has the meaning given such term in Schedule 6
hereto.

     "PMTI" means Plains Marketing & Transportation, Inc., a Delaware
corporation.

     "Qualified Inventory Purchases" means (i) Cash and Carry Purchases and (ii)
purchases of crude oil designated as working inventory at a Plains Terminal and
line fill in pipelines Currently Approved by Majority Lenders.

                                       21

 
     "Rating Agency" means either S&P or Moody's.

     "Registration Statement" means that certain Registration Statement on Form
S-1 filed with the Securities and Exchange Commission by Plains MLP under
registration number 333-64107 (as amended prior to the date hereof), together
with its referenced exhibits and other appendices.

     "Regulation D" means Regulation D of the Board of Governors of the Federal
Reserve System as from time to time in effect.

     "Reserve Requirement" means, at any time, the maximum rate at which
reserves (including any marginal, special, supplemental, or emergency reserves)
are required to be maintained under regulations issued from time to time by the
Board of Governors of the Federal Reserve System (or any successor) by member
banks of the Federal Reserve System against "Eurocurrency liabilities" (as such
term is used in Regulation D).  Without limiting the effect of the foregoing,
the Reserve Requirement shall reflect any other reserves required to be
maintained by such member banks with respect to (a) any category of liabilities
which includes deposits by reference to which the Adjusted Eurodollar Rate is to
be determined, or (b) any category of extensions of credit or other assets which
include Eurodollar Loans.

     "Resources" means Plains Resources Inc., a Delaware corporation.

     "Restricted Person" means any of Plains MLP and each Subsidiary of Plains
MLP, including but not limited to Borrower, All American, and each Subsidiary of
Borrower and/or All American.

     "S&P" means Standard & Poor's Ratings Group (a division of McGraw Hill,
Inc.) or its successor.

     "Security Documents" means the instruments listed in the Security Schedule
and all other security agreements, deeds of trust, mortgages, chattel mortgages,
pledges, guaranties, financing statements, continuation statements, extension
agreements and other agreements or instruments now, heretofore, or hereafter
delivered by any Restricted Person to Administrative Agent in connection with
this Agreement or any transaction contemplated hereby to secure or guarantee the
payment of any part of the Obligations or the performance of any Restricted
Person's other duties and obligations under the Loan Documents.

     "Security Schedule" means Schedule 3 hereto.

     "Subsidiary" means, with respect to any Person, any corporation,
association, partnership, limited liability company, joint venture, or other
business or corporate entity, enterprise or organization which is directly or
indirectly (through one or more intermediaries) controlled or owned more than
fifty percent by such Person.

     "Termination Event" means (a) the occurrence with respect to any ERISA Plan
of (i) a reportable event described in Sections 4043(c)(5) or (6) of ERISA or
(ii) any other reportable 

                                       22

 
event described in Section 4043(c) of ERISA other than a reportable event not
subject to the provision for 30-day notice to the Pension Benefit Guaranty
Corporation pursuant to a waiver by such corporation under Section 4043(a) of
ERISA, or (b) the withdrawal of any ERISA Affiliate from an ERISA Plan during a
plan year in which it was a "substantial employer" as defined in Section
4001(a)(2) of ERISA, or (c) the filing of a notice of intent to terminate any
ERISA Plan or the treatment of any ERISA Plan amendment as a termination under
Section 4041 of ERISA, or (d) the institution of proceedings to terminate any
ERISA Plan by the Pension Benefit Guaranty Corporation under Section 4042 of
ERISA, or (e) 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 ERISA Plan.

     "Tribunal" means any government, any arbitration panel, any court or any
governmental department, commission, board, bureau, agency or instrumentality of
the United States of America or any state, province, commonwealth, nation,
territory, possession, county, parish, town, township, village or municipality,
whether now or hereafter constituted or existing.

     "Type" means, with respect to any Loans, the characterization of such Loans
as either Base Rate Loans or Eurodollar Loans.

     "UCC" means the Uniform Commercial Code as in effect in the State of New
York.

     "Wholly Owned Subsidiary" means any Subsidiary of a Person, all of the
issued and outstanding stock, limited liability company membership interests, or
partnership interests of which (including all rights or options to acquire such
stock or interests) are directly or indirectly (through one or more
Subsidiaries) owned by such Person, excluding any general partner interests
owned by General Partner in any such Subsidiary that is a partnership, such
general partner interests not to exceed two percent (2%) of the aggregate
ownership interests of any such partnership and directors' qualifying shares if
applicable.

      Section 1.2.  Exhibits and Schedules; Additional Definitions.  All
Exhibits and Schedules attached to this Agreement are a part hereof for all
purposes.  Reference is hereby made to the Security Schedule for the meaning of
certain terms defined therein and used but not defined herein, which definitions
are incorporated herein by reference.

      Section 1.3.  Amendment of Defined Instruments.  Unless the context
otherwise requires or unless otherwise provided herein the terms defined in this
Agreement which refer to a particular agreement, instrument or document also
refer to and include all renewals, extensions, modifications, amendments and
restatements of such agreement, instrument or document, provided that nothing
contained in this section shall be construed to authorize any such renewal,
extension, modification, amendment or restatement.  All references to the terms
"Contribution Agreement", "Crude Oil Marketing Agreement", "Merger Agreement",
"Omnibus Agreement", and "Partnership Agreement" shall be deemed to be
references to those agreements as such agreements are executed and delivered by
the parties thereto on the Funding Date, provided each such agreement is in the
form of such agreement attached as an exhibit to the Registration Statement,
with changes to such form that are non-substantive or that the Administrative
Agent 

                                       23

 
approves on or prior to the Funding Date. The terms "All American Pipeline" and
"SJV Gathering System" shall have the meanings given in the Preliminary
Prospectus.

      Section 1.4.  References and Titles.  All references in this Agreement to
Exhibits, Schedules, articles, sections, subsections and other subdivisions
refer to the Exhibits, Schedules, articles, sections, subsections and other
subdivisions of this Agreement unless expressly provided otherwise.  Titles
appearing at the beginning of any subdivisions are for convenience only and do
not constitute any part of such subdivisions and shall be disregarded in
construing the language contained in such subdivisions.  The words "this
Agreement," "this instrument," "herein," "hereof," "hereby," "hereunder" and
words of similar import refer to this Agreement as a whole and not to any
particular subdivision unless expressly so limited.  The phrases "this section"
and "this subsection" and similar phrases refer only to the sections or
subsections hereof in which such phrases occur.  The word "or" is not exclusive,
and the word "including" (in its various forms) means "including without
limitation."  Pronouns in masculine, feminine and neuter genders shall be
construed to include any other gender, and words in the singular form shall be
construed to include the plural and vice versa, unless the context otherwise
requires.

      Section 1.5.  Calculations and Determinations.  All calculations under the
Loan Documents of interest chargeable with respect to Eurodollar Loans and of
fees shall be made on the basis of actual days elapsed (including the first day
but excluding the last) and a year of 360 days.  All other calculations of
interest made under the Loan Documents shall be made on the basis of actual days
elapsed (including the first day but excluding the last) and a year of 365 or
366 days, as appropriate.  Each determination by a Lender Party of amounts to be
paid under Article III or any other matters which are to be determined hereunder
by a Lender Party (such as any Eurodollar Rate, Adjusted Eurodollar Rate,
Business Day, Interest Period, or Reserve Requirement) shall, in the absence of
manifest error, be conclusive and binding.  Unless otherwise expressly provided
herein or unless Majority Lenders otherwise consent all financial statements and
reports furnished to any Lender Party hereunder shall be prepared and all
financial computations and determinations pursuant hereto shall be made in
accordance with GAAP.

                  ARTICLE II - The Loans and Letters of Credit

      Section 2.1.  Commitments to Lend; Notes.  Subject to the terms and
conditions hereof, each Lender agrees to make loans to Borrower (herein called
such Lender's "Loans") upon Borrower's request from time to time during the
Commitment Period, provided that (a) subject to Sections 3.3, 3.4 and 3.6, all
Lenders are requested to make Loans of the same Type in accordance with their
respective Percentage Shares and as part of the same Borrowing, (b) after giving
effect to such loans, the aggregate principal amount of outstanding Loans will
not exceed $40,000,000, and (c) after giving effect to such Loans, the Facility
Usage does not exceed the lesser of (i) the Maximum Facility Amount and (ii) the
Borrowing Base determined as of the date on which the requested Loans are to be
made.  The aggregate amount of all Loans in any Borrowing must be equal to
$2,000,000 or any higher integral multiple of $250,000. Borrower may have no
more than five Borrowings of Eurodollar Loans outstanding at any time.  The
obligation of Borrower to repay to each Lender the aggregate amount of all Loans
made by such 

                                       24

 
Lender, together with interest accruing in connection therewith, shall be
evidenced by a single promissory note (herein called such Lender's "Note") made
by Borrower payable to the order of such Lender in the form of Exhibit A with
appropriate insertions. The amount of principal owing on any Lender's Note at
any given time shall be the aggregate amount of all Loans theretofore made by
such Lender minus all payments of principal theretofore received by such Lender
on such Note. Interest on each Note shall accrue and be due and payable as
provided herein and therein. Each Note shall be due and payable as provided
herein and therein, and shall be due and payable in full on the last day of the
Commitment Period. Subject to the terms and conditions of this Agreement,
Borrower may borrow, repay, and reborrow hereunder.

      Section 2.2.  Requests for New Loans.  Borrower must give to
Administrative Agent written notice (or telephonic notice promptly confirmed in
writing) of any requested Borrowing of Loans to be funded by Lenders.  Each such
notice constitutes a "Borrowing Notice" hereunder and must:

          (a)  specify (i) the aggregate amount of any such Borrowing of Base
     Rate Loans and the date on which such Base Rate Loans are to be advanced,
     or (ii) the aggregate amount of any such Borrowing of Eurodollar Loans, the
     date on which such Eurodollar Loans are to be advanced (which shall be the
     first day of the Interest Period which is to apply thereto), and the length
     of the applicable Interest Period; and

          (b)  be received by Administrative Agent not later than 11:00 a.m.,
     Boston, Massachusetts time, on (i) the day on which any such Base Rate
     Loans are to be made, or (ii) the third Business Day preceding the day on
     which any such Eurodollar Loans are to be made.

Each such written request or confirmation must be made in the form and substance
of the "Borrowing Notice" attached hereto as Exhibit B, duly completed.  Each
such telephonic request shall be deemed a representation, warranty,
acknowledgment and agreement by Borrower as to the matters which are required to
be set out in such written confirmation.  Upon receipt of any such Borrowing
Notice, Administrative Agent shall give each Lender prompt notice of the terms
thereof.  If all conditions precedent to such new Loans have been met, each
Lender will on the date requested promptly remit to Administrative Agent at
Administrative Agent's office in Boston, Massachusetts the amount of such
Lender's Loan in immediately available funds, and upon receipt of such funds,
unless to its actual knowledge any conditions precedent to such Loans have been
neither met nor waived as provided herein, Administrative Agent shall promptly
make such Loans available to Borrower.  Unless Administrative Agent shall have
received prompt notice from a Lender that such Lender will not make available to
Administrative Agent such Lender's new Loan, Administrative Agent may in its
discretion assume that such Lender has made such Loan available to
Administrative Agent in accordance with this section and Administrative Agent
may if it chooses, in reliance upon such assumption, make such Loan available to
Borrower.  If and to the extent such Lender shall not so make its new Loan
available to Administrative Agent, such Lender and Borrower severally agree to
pay or repay to Administrative Agent within three days after demand the amount
of such Loan together with interest thereon, for each day from the date such
amount was made available to Borrower until the date such amount is paid or
repaid to Administrative Agent, with interest at (i) the Federal Funds Rate, if
such Lender is making such 

                                       25

 
payment and (ii) the interest rate applicable at the time to the other new Loans
made on such date, if Borrower is making such repayment. If neither such Lender
nor Borrower pays or repays to Administrative Agent such amount within such
three-day period, Administrative Agent shall be entitled to recover from
Borrower, on demand, in lieu of interest provided for in the preceding sentence,
interest thereon at the Default Rate, calculated from the date such amount was
made available to Borrower. The failure of any Lender to make any new Loan to be
made by it hereunder shall not relieve any other Lender of its obligation
hereunder, if any, to make its new Loan, but no Lender shall be responsible for
the failure of any other Lender to make any new Loan to be made by such other
Lender.

      Section 2.3.  Continuations and Conversions of Existing Loans.  Borrower
may make the following elections with respect to Loans already outstanding:  to
Convert, in whole or in part, Base Rate Loans to Eurodollar Loans, to Convert,
in whole or in part, Eurodollar Loans to Base Rate Loans on the last day of the
Interest Period applicable thereto, and to Continue, in whole or in part,
Eurodollar Loans beyond the expiration of such Interest Period by designating a
new Interest Period to take effect at the time of such expiration.  In making
such elections, Borrower may combine existing Loans made pursuant to separate
Borrowings into one new Borrowing or divide existing Loans made pursuant to one
Borrowing into separate new Borrowings, provided that Borrower may have no more
than five Borrowings of Eurodollar Loans outstanding at any time.  To make any
such election, Borrower must give to Administrative Agent written notice (or
telephonic notice promptly confirmed in writing) of any such Conversion or
Continuation of existing Loans, with a separate notice given for each new
Borrowing.  Each such notice constitutes a "Continuation/Conversion Notice"
hereunder and must:

          (a)  specify the existing Loans which are to be Continued or
     Converted;

          (b)  specify (i) the aggregate amount of any Borrowing of Base Rate
     Loans into which such existing Loans are to be Continued or Converted and
     the date on which such Continuation or Conversion is to occur, or (ii) the
     aggregate amount of any Borrowing of Eurodollar Loans into which such
     existing Loans are to be Continued or Converted, the date on which such
     Continuation or Conversion is to occur (which shall be the first day of the
     Interest Period which is to apply to such Eurodollar Loans), and the length
     of the applicable Interest Period; and

          (c)  be received by Administrative Agent not later than 11:00 a.m.,
     Boston, Massachusetts time, on (i) the day on which any such Continuation
     or Conversion to Base Rate Loans is to occur, or (ii) the third Business
     Day preceding the day on which any such Continuation or Conversion to
     Eurodollar Loans is to occur.

Each such written request or confirmation must be made in the form and substance
of the "Continuation/Conversion Notice" attached hereto as Exhibit C, duly
completed.  Each such telephonic request shall be deemed a representation,
warranty, acknowledgment and agreement by Borrower as to the matters which are
required to be set out in such written confirmation.  Upon receipt of any such
Continuation/Conversion Notice, Administrative Agent shall give each Lender
prompt notice of the terms thereof.  Each Continuation/Conversion Notice shall
be irrevocable and binding on Borrower.  During the continuance of any Default,
Borrower may not make any 

                                       26

 
election to Convert existing Loans into Eurodollar Loans or Continue existing
Loans as Eurodollar Loans beyond the expiration of their respective and
corresponding Interest Period then in effect. If (due to the existence of a
Default or for any other reason) Borrower fails to timely and properly give any
Continuation/Conversion Notice with respect to a Borrowing of existing
Eurodollar Loans at least three days prior to the end of the Interest Period
applicable thereto, such Eurodollar Loans, to the extent not prepaid at the end
of such Interest Period, shall automatically be Converted into Base Rate Loans
at the end of such Interest Period. No new funds shall be repaid by Borrower or
advanced by any Lender in connection with any Continuation or Conversion of
existing Loans pursuant to this section, and no such Continuation or Conversion
shall be deemed to be a new advance of funds for any purpose; such Continuations
and Conversions merely constitute a change in the interest rate applicable to
already outstanding Loans.

      Section 2.4.  Use of Proceeds.  Borrower shall use the proceeds of all
Loans to make Qualified Inventory Purchases and to refinance Matured LC
Obligations.  In no event shall any Loan or any Letter of Credit be used (i) to
fund distributions by Plains MLP, (ii) directly or indirectly by any Person for
personal, family, household or agricultural purposes, (iii) for the purpose,
whether immediate, incidental or ultimate, of purchasing, acquiring or carrying
any "margin stock" (as such term is defined in Regulation U promulgated by the
Board of Governors of the Federal Reserve System) or (iv) to extend credit to
others directly or indirectly for the purpose of purchasing or carrying any such
margin stock.  Borrower represents and warrants that Borrower is not engaged
principally, or as one of Borrower's important activities, in the business of
extending credit to others for the purpose of purchasing or carrying such margin
stock.

      Section 2.5.  Optional Prepayments of Loans.  Borrower may, upon five
Business Days' notice to Administrative Agent (and Administrative Agent will
promptly give notice to the other Lenders), from time to time and without
premium or penalty prepay the Loans, in whole or in part, so long as the
aggregate amounts of all partial prepayments of principal on the Loans equals
$2,000,000 or any higher integral multiple of $250,000.  Each prepayment of
principal under this section shall be accompanied by all interest then accrued
and unpaid on the principal so prepaid. Any principal or interest prepaid
pursuant to this section shall be in addition to, and not in lieu of, all
payments otherwise required to be paid under the Loan Documents at the time of
such prepayment.

      Section 2.6.  Mandatory Prepayments.  If at any time the Facility Usage
exceeds the Borrowing Base (whether due to a reduction in the Borrowing Base in
accordance with this Agreement, or otherwise), Borrower shall immediately upon
demand prepay the principal of the Loans in an amount at least equal to such
excess.  Each prepayment of principal under this section shall be accompanied by
all interest then accrued and unpaid on the principal so prepaid.  Any principal
or interest prepaid pursuant to this section shall be in addition to, and not in
lieu of, all payments otherwise required to be paid under the Loan Documents at
the time of such prepayment.

      Section 2.7.  Letters of Credit.  Subject to the terms and conditions
hereof, Borrower may during the Commitment Period request LC Issuer to issue,
amend, or extend the expiration date of, one or more Letters of Credit, provided
that:

                                       27

 
          (a)  after taking such Letter of Credit into account (i) the Facility
     Usage does not exceed the lesser of (A) the Maximum Facility Amount at such
     time or (B) the Borrowing Base at such time and (ii) such Letter of Credit
     can be incurred by Borrower pursuant to the Permitted Debt Limit at such
     time;

          (b)  the expiration date of such Letter of Credit is prior to the
     earlier of (i) 70 days (or 100 days, if the beneficiary thereof is Exxon
     Company U.S.A.) after the date of issuance of such Letter of Credit (or 180
     days after the date of issuance in the case of a Surety Letter of Credit)
     or (ii) 30 days prior to the end of the Commitment Period;

          (c)  the issuance of such Letter of Credit will be in compliance with
     all applicable governmental restrictions, policies, and guidelines and will
     not subject LC Issuer to any cost which is not reimbursable under Article
     III;

          (d) either (i) such Letter of Credit is related to the purchase or
     exchange by Borrower of crude oil and is in the Form of Exhibit D hereto or
     such other form and terms as shall be acceptable to LC Issuer in its sole
     and absolute discretion and Currently Approved by Majority Lenders, or (ii)
     such Letter of Credit is a Surety Letter of Credit and after taking such
     Letter of Credit into account the aggregate amount of LC Obligations in
     respect to all Surety Letters of Credit does not exceed $1,000,000; and

          (e)  all other conditions in this Agreement to the issuance of such
     Letter of Credit have been satisfied.

LC Issuer will honor any such request if the foregoing conditions (a) through
(e) (in the following Section 2.8 called the "LC Conditions") have been met as
of the date of issuance, amendment, or extension of such Letter of Credit. The
outstanding letters of credit issued by LC Issuer under the Existing Agreement
shall be deemed to be Letters of Credit issued hereunder; Borrower hereby
represents and warrants that the LC Conditions have been met as of the date
hereof with respect to each such Letter of Credit.

      Section 2.8.  Requesting Letters of Credit.  Borrower must make written
application for any Letter of Credit at least two Business Days before the date
on which Borrower desires for LC Issuer to issue such Letter of Credit.  By
making any such written application, unless otherwise expressly stated therein,
Borrower shall be deemed to have represented and warranted that the LC
Conditions described in Section 2.7 will be met as of the date of issuance of
such Letter of Credit. Each such written application for a Letter of Credit must
be made in writing in the form and substance of Exhibit E, the terms and
provisions of which are hereby incorporated herein by reference (or in such
other form as may mutually be agreed upon by LC Issuer and Borrower).  If all LC
Conditions for a Letter of Credit have been met as described in Section 2.7 on
any Business Day before 11:00 a.m, Boston, Massachusetts time, LC Issuer will
issue such Letter of Credit on the same Business Day at LC Issuer's office in
Boston, Massachusetts. If the LC Conditions are met as described in Section 2.7
on any Business Day on or after 11:00 a.m, Boston, Massachusetts time, LC Issuer
will issue such Letter of Credit on the next succeeding Business Day at LC
Issuer's office in Boston, Massachusetts.  If any provisions of any LC

                                       28

 
Application conflict with any provisions of this Agreement, the provisions of
this Agreement shall govern and control.

      Section 2.9.  Reimbursement and Participations.

     (a)  Reimbursement by Borrower.  Each Matured LC Obligation shall
constitute a loan by LC Issuer to Borrower.  Borrower promises to pay to LC
Issuer, or to LC Issuer's order, on demand, the full amount of each Matured LC
Obligation, together with interest thereon (i) at the Base Rate to and including
the second Business Day after the Matured LC Obligation is incurred and (ii) at
the Default Rate on each day thereafter.

     (b)  Letter of Credit Advances.  If the beneficiary of any Letter of Credit
makes a draft or other demand for payment thereunder then Borrower may, during
the interval between the making thereof and the honoring thereof by LC Issuer,
request Lenders to make Loans to Borrower in the amount of such draft or demand,
which Loans shall be made concurrently with LC Issuer's payment of such draft or
demand and shall be immediately used by LC Issuer to repay the amount of the
resulting Matured LC Obligation.  Such a request by Borrower shall be made in
compliance with all of the provisions hereof, provided that for the purposes of
the first sentence of Section 2.1, the amount of such Loans shall be considered,
but the amount of the Matured LC Obligation to be concurrently paid by such
Loans shall not be considered.

     (c)  Participation by Lenders.  LC Issuer irrevocably agrees to grant and
hereby grants to each Lender, and -- to induce LC Issuer to issue Letters of
Credit hereunder -- each Lender irrevocably agrees to accept and purchase and
hereby accepts and purchases from LC Issuer, on the terms and conditions
hereinafter stated and for such Lender's own account and risk an undivided
interest equal to such Lender's Percentage Share of LC Issuer's obligations and
rights under each Letter of Credit issued hereunder and the amount of each
Matured LC Obligation paid by LC Issuer thereunder.  Each Lender unconditionally
and irrevocably agrees with LC Issuer that, if a Matured LC Obligation is paid
under any Letter of Credit for which LC Issuer is not reimbursed in full by
Borrower in accordance with the terms of this Agreement and the related LC
Application (including any reimbursement by means of concurrent Loans or by the
application of LC Collateral), such Lender shall (in all circumstances and
without set-off or counterclaim) pay to LC Issuer on demand, in immediately
available funds at LC Issuer's address for notices hereunder, such Lender's
Percentage Share of such Matured LC Obligation (or any portion thereof which has
not been reimbursed by Borrower).  Each Lender's obligation to pay LC Issuer
pursuant to the terms of this subsection is irrevocable and unconditional.  If
any amount required to be paid by any Lender to LC Issuer pursuant to this
subsection is paid by such Lender to LC Issuer within three Business Days after
the date such payment is due, LC Issuer shall in addition to such amount be
entitled to recover from such Lender, on demand, interest thereon calculated
from such due date at the Federal Funds Rate.  If any amount required to be paid
by any Lender to LC Issuer pursuant to this subsection is not paid by such
Lender to LC Issuer within three Business Days after the date such payment is
due, LC Issuer shall in addition to such amount be entitled to recover from such
Lender, on demand, interest thereon calculated from such due date at the Base
Rate.

                                       29

 
     (d)  Distributions to Participants.  Whenever LC Issuer has in accordance
with this section received from any Lender payment of such Lender's Percentage
Share of any Matured LC Obligation, if LC Issuer thereafter receives any payment
of such Matured LC Obligation or any payment of interest thereon (whether
directly from Borrower or by application of LC Collateral or otherwise, and
excluding only interest for any period prior to LC Issuer's demand that such
Lender make such payment of its Percentage Share), LC Issuer will distribute to
such Lender its Percentage Share of the amounts so received by LC Issuer;
provided, however, that if any such payment received by LC Issuer must
thereafter be returned by LC Issuer, such Lender shall return to LC Issuer the
portion thereof which LC Issuer has previously distributed to it.

     (e)  Calculations.  A written advice setting forth in reasonable detail the
amounts owing under this section, submitted by LC Issuer to Borrower or any
Lender from time to time, shall be conclusive, absent manifest error, as to the
amounts thereof.

      Section 2.10.  No Duty to Inquire.

     (a)  Drafts and Demands.  LC Issuer is authorized and instructed to accept
and pay drafts and demands for payment under any Letter of Credit without
requiring, and without responsibility for, any determination as to the existence
of any event giving rise to said draft, either at the time of acceptance or
payment or thereafter.  LC Issuer is under no duty to determine the proper
identity of anyone presenting such a draft or making such a demand (whether by
tested telex or otherwise) as the officer, representative or agent of any
beneficiary under any Letter of Credit, and payment by LC Issuer to any such
beneficiary when requested by any such purported officer, representative or
agent is hereby authorized and approved.  Borrower releases each Lender Party
from, and agrees to hold each Lender Party harmless and indemnified against, any
liability or claim in connection with or arising out of the subject matter of
this section, WHICH INDEMNITY SHALL APPLY WHETHER OR NOT ANY SUCH LIABILITY OR
CLAIM IS IN ANY WAY OR TO ANY EXTENT CAUSED, IN WHOLE OR IN PART, BY ANY
NEGLIGENT ACT OR OMISSION OF ANY KIND BY ANY LENDER PARTY, provided only that no
Lender Party shall be entitled to indemnification for that portion, if any, of
any liability or claim which is proximately caused by its own individual gross
negligence or willful misconduct, as determined in a final judgment.

     (b)  Extension of Maturity.  If the maturity of any Letter of Credit is
extended by its terms or by Law or governmental action, if any extension of the
maturity or time for presentation of drafts or any other modification of the
terms of any Letter of Credit is made at the request of Borrower, or if the
amount of any Letter of Credit is increased at the request of Borrower, this
Agreement shall be binding upon all Restricted Persons with respect to such
Letter of Credit as so extended, increased or otherwise modified, with respect
to drafts and property covered thereby, and with respect to any action taken by
LC Issuer, LC Issuer's correspondents, or any Lender Party in accordance with
such extension, increase or other modification.

     (c)  Transferees of Letters of Credit.  If any Letter of Credit provides
that it is transferable, LC Issuer shall have no duty to determine the proper
identity of anyone appearing as transferee of such Letter of Credit, nor shall
LC Issuer be charged with responsibility of any 

                                       30

 
nature or character for the validity or correctness of any transfer or
successive transfers, and payment by LC Issuer to any purported transferee or
transferees as determined by LC Issuer is hereby authorized and approved, and
Borrower releases each Lender Party from, and agrees to hold each Lender Party
harmless and indemnified against, any liability or claim in connection with or
arising out of the foregoing, WHICH INDEMNITY SHALL APPLY WHETHER OR NOT ANY
SUCH LIABILITY OR CLAIM IS IN ANY WAY OR TO ANY EXTENT CAUSED, IN WHOLE OR IN
PART, BY ANY NEGLIGENT ACT OR OMISSION OF ANY KIND BY ANY LENDER PARTY, provided
only that no Lender Party shall be entitled to indemnification for that portion,
if any, of any liability or claim which is proximately caused by its own
individual gross negligence or willful misconduct, as determined in a final
judgment.

      Section 2.11.  LC Collateral.

     (a)  LC Obligations in Excess of Borrowing Base.  If, after the making of
all mandatory prepayments required under Section 2.6, the outstanding LC
Obligations will exceed the Borrowing Base, then in addition to prepayment of
the entire principal balance of the Loans Borrower will immediately pay to LC
Issuer an amount equal to such excess.  LC Issuer will hold such amount as
collateral security for the remaining LC Obligations (all such amounts held as
collateral security for LC Obligations being herein collectively called "LC
Collateral") and the other Obligations, and such collateral may be applied from
time to time to pay Matured LC Obligations.  Neither this subsection nor the
following subsection shall, however, limit or impair any rights which LC Issuer
may have under any other document or agreement relating to any Letter of Credit,
LC Collateral or LC Obligation, including any LC Application, or any rights
which any Lender Party may have to otherwise apply any payments by Borrower and
any LC Collateral under Section 3.1.

     (b)  Acceleration of LC Obligations.  If the Obligations or any part
thereof become immediately due and payable pursuant to Section 8.1 then, unless
all Lenders otherwise specifically elect to the contrary (which election may
thereafter be retracted by all Lenders at any time), all LC Obligations shall
become immediately due and payable without regard to whether or not actual
drawings or payments on the Letters of Credit have occurred, and Borrower shall
be obligated to pay to LC Issuer immediately an amount equal to the aggregate LC
Obligations which are then outstanding to be held as LC Collateral.

     (c)  Investment of LC Collateral.  Pending application thereof, all LC
Collateral shall be invested by LC Issuer in such Cash Equivalents as LC Issuer
may choose in its sole discretion. All interest on (and other proceeds of) such
Investments shall be reinvested or applied to Matured LC Obligations or other
Obligations which are due and payable.  When all Obligations have been satisfied
in full, including all LC Obligations, all Letters of Credit have expired or
been terminated, and all of Borrower's reimbursement obligations in connection
therewith have been satisfied in full, LC Issuer shall release any remaining LC
Collateral.  Borrower hereby assigns and grants to LC Issuer a continuing
security interest in all LC Collateral paid by it to LC Issuer, all Investments
purchased with such LC Collateral, and all proceeds thereof to secure its
Matured LC Obligations and its Obligations under this Agreement, each Note, and
the other Loan Documents, and Borrower agrees that such LC Collateral,
Investments and proceeds shall be subject to all of 

                                       31

 
the terms and conditions of the Security Documents. Borrower further agrees that
LC Issuer shall have all of the rights and remedies of a secured party under the
UCC with respect to such security interest and that an Event of Default under
this Agreement shall constitute a default for purposes of such security
interest.

     (d)  Payment of LC Collateral.  When Borrower is required to provide LC
Collateral for any reason and fails to do so on the day when required, LC Issuer
or Administrative Agent may without prior notice to Borrower or any other
Restricted Person provide such LC Collateral (whether by application of proceeds
of other Collateral, by transfers from other accounts maintained with LC Issuer,
or otherwise) using any available funds of Borrower or any other Person also
liable to make such payments, and LC Issuer or Administrative Agent will give
notice thereof to Borrower promptly after such application or transfer.  Any
such amounts which are required to be provided as LC Collateral and which are
not provided on the date required shall, for purposes of each Security Document,
be considered past due Obligations owing hereunder, and LC Issuer is hereby
authorized to exercise its respective rights under each Security Document to
obtain such amounts.

      Section 2.12.  Interest Rates and Fees; Reduction in Commitment.

     (a)  Interest Rates.  Unless the Default Rate shall apply, (i) each Base
Rate Loan shall bear interest on each day outstanding at the Base Rate in effect
on such day and (ii) each Eurodollar Loan shall bear interest on each day during
the related Interest Period at the related Adjusted Eurodollar Rate plus the
Eurodollar Rate Margin in effect on such day.  During a Default Rate Period, all
Loans shall bear interest on each day outstanding at the Default Rate.  If an
Event of Default based upon Section 8.1(a), Section 8.1(b) or, with respect to
Borrower, based upon Section 8.1(i)(i), (i)(ii) or (i)(iii) exists and the Loans
are not bearing interest at the Default Rate, the past due principal and past
due interest shall bear interest on each day outstanding at the Default Rate.
The interest rate shall change whenever the applicable Base Rate, the Adjusted
Eurodollar Rate or the Eurodollar Rate Margin changes.  In no event shall the
interest rate on any Loan exceed the Highest Lawful Rate.

     (b)  Commitment Fees.  In consideration of each Lender's commitment to make
Loans, Borrower will pay to Administrative Agent for the account of each Lender
a commitment fee determined on a daily basis by applying a rate of one quarter
of one percent (0.25%) per annum to such Lender's Percentage Share of the unused
portion of the Maximum Facility Amount on each day during the Commitment Period,
determined for each such day by deducting from the amount of the Maximum
Facility Amount at the end of such day the Facility Usage.  This commitment fee
shall be due and payable in arrears on the last day of each Fiscal Quarter and
at the end of the Commitment Period.  Borrower shall have the right from time to
time to permanently reduce the Maximum Facility Amount, provided that (i) notice
of such reduction is given not less than 2 business Days prior to such
reduction, (ii) the resulting Maximum Facility Amount is not less than the
Facility Usage, and (iii) each partial reduction shall be in an amount at least
equal to $500,000 and in multiples of $100,000 in excess thereof.

     (c)  Letter of Credit Fees.  In consideration of LC Issuer's issuance of
any Letter of Credit, Borrower agrees to pay (i) to Administrative Agent, for
the account of all Lenders in accordance 

                                       32

 
with their respective Percentage Shares, a letter of credit fee at a rate equal
to nine-tenths of one percent (0.9%) per annum, and (ii) to such LC Issuer for
its own account, a letter of credit fronting fee at a rate equal to one-tenth of
one percent (.10%) per annum. Each such fee will be calculated on the face
amount of each Letter of Credit outstanding on each day at the above applicable
rates and will be payable monthly in arrears on the last day of each month. In
addition, Borrower will pay to LC Issuer a minimum administrative issuance fee
of $100 for each Letter of Credit and such other fees and charges customarily
charged by the LC Issuer in respect of any amendment or negotiation of any
Letter of Credit in accordance with the LC Issuer's published schedule of such
charges as of the date of such amendment or negotiation.

     (d)  Administrative Agent's Fees.  In addition to all other amounts due to
Administrative Agent under the Loan Documents, Borrower will pay fees to
Administrative Agent as described in a letter agreement between Administrative
Agent and Borrower.

      Section 2.13.  Borrowing Base Reporting.  The Borrowing Base Reports are
subject to the procedures set forth on Schedule 7.


                       ARTICLE III - Payments to Lenders

      Section 3.1.  General Procedures.  Borrower will make each payment which
it owes under the Loan Documents to Administrative Agent for the account of the
Lender Party to whom such payment is owed in lawful money of the United States
of America, without set-off, deduction or counterclaim, and in immediately
available funds.  Each such payment must be received by Administrative Agent not
later than noon, Boston, Massachusetts time, on the date such payment becomes
due and payable.  Any payment received by Administrative Agent after such time
will be deemed to have been made on the next following Business Day.  Should any
such payment become due and payable on a day other than a Business Day, the
maturity of such payment shall be extended to the next succeeding Business Day,
and, in the case of a payment of principal or past due interest, interest shall
accrue and be payable thereon for the period of such extension as provided in
the Loan Document under which such payment is due.  Each payment under a Loan
Document shall be due and payable at the place provided therein and, if no
specific place of payment is provided, shall be due and payable at the place of
payment of Administrative Agent's Note.  When Administrative Agent collects or
receives money on account of the Obligations, Administrative Agent shall
distribute all money so collected or received, and each Lender Party shall apply
all such money so distributed, as follows:

          (a)  first, for the payment of all Obligations which are then due (and
     if such money is insufficient to pay all such Obligations, first to any
     reimbursements due Administrative Agent under Section 6.9 or 10.4 and then
     to the partial payment of all other Obligations then due in proportion to
     the amounts thereof, or as Lender Parties shall otherwise agree);

          (b)  then for the prepayment of amounts owing under the Loan Documents
     (other than principal on the Notes) if so specified by Borrower;

                                       33

 
          (c)  then for the prepayment of principal on the Notes, together with
     accrued and unpaid interest on the principal so prepaid; and

          (d)  last, for the payment or prepayment of any other Obligations.

All payments applied to principal or interest on any Note shall be applied first
to any interest then due and payable, then to principal then due and payable,
and last to any prepayment of principal and interest in compliance with Sections
2.5 and 2.6.  All distributions of amounts described in any of subsections (b),
(c) or (d) above shall be made by Administrative Agent pro rata to each Lender
Party then owed Obligations described in such subsection in proportion to all
amounts owed to all Lender Parties which are described in such subsection;
provided that if any Lender then owes payments to LC Issuer for the purchase of
a participation under Section 2.9(c) or to Administrative Agent under Section
9.4, any amounts otherwise distributable under this section to such Lender shall
be deemed to belong to LC Issuer or Administrative Agent, respectively, to the
extent of such unpaid payments, and Administrative Agent shall apply such
amounts to make such unpaid payments rather than distribute such amounts to such
Lender.

      Section 3.2.  Capital Reimbursement.  If either (a) the introduction or
implementation of or the compliance with or any change in or in the
interpretation of any Law, or (b) the introduction or implementation of or the
compliance with any request, directive or guideline from any central bank or
other governmental authority (whether or not having the force of Law) affects or
would affect the amount of capital required or expected to be maintained by any
Lender Party or any corporation controlling any Lender Party, then, within five
Business Days after demand by such Lender Party, Borrower will pay to
Administrative Agent for the benefit of such Lender Party, from time to time as
specified by such Lender Party, such additional amount or amounts which such
Lender Party shall determine to be appropriate to compensate such Lender Party
or any corporation controlling such Lender Party in light of such circumstances,
to the extent that such Lender Party reasonably determines that the amount of
any such capital would be increased or the rate of return on any such capital
would be reduced by or in whole or in part based on the existence of the face
amount of such Lender Party's Loans, Letters of Credit, participations in
Letters of Credit or commitments under this Agreement.

      Section 3.3.  Increased Cost of Eurodollar Loans or Letters of Credit.  If
any applicable Law (whether now in effect or hereinafter enacted or promulgated,
including Regulation D) or any interpretation or administration thereof by any
governmental authority charged with the interpretation or administration thereof
(whether or not having the force of Law):

          (a)  shall change the basis of taxation of payments to any Lender
     Party of any principal, interest, or other amounts attributable to any
     Eurodollar Loan or Letter of Credit or otherwise due under this Agreement
     in respect of any Eurodollar Loan or Letter of Credit (other than taxes
     imposed on, or measured by, the overall net income of such Lender Party or
     any Applicable Lending Office of such Lender Party by any jurisdiction in
     which such Lender Party or any such Applicable Lending Office is located);
     or

          (b)  shall change, impose, modify, apply or deem applicable any
     reserve, special deposit or similar requirements in respect of any
     Eurodollar Loan or any Letter of Credit 

                                       34

 
     (excluding those for which such Lender Party is fully compensated pursuant
     to adjustments made in the definition of Eurodollar Rate) or against assets
     of, deposits with or for the account of, or credit extended by, such Lender
     Party; or

          (c)  shall impose on any Lender Party or the interbank eurocurrency
     deposit market any other condition affecting any Eurodollar Loan or Letter
     of Credit, the result of which is to increase the cost to any Lender Party
     of funding or maintaining any Eurodollar Loan or of issuing any Letter of
     Credit or to reduce the amount of any sum receivable by any Lender Party in
     respect of any Eurodollar Loan or Letter of Credit by an amount deemed by
     such Lender Party to be material,

then such Lender Party shall promptly notify Administrative Agent and Borrower
in writing of the happening of such event and of the amount required to
compensate such Lender Party for such event (on an after-tax basis, taking into
account any taxes on such compensation), whereupon (i) Borrower shall, within
five Business Days after demand therefor by such Lender Party, pay such amount
to Administrative Agent for the account of such Lender Party and (ii) Borrower
may elect, by giving to Administrative Agent and such Lender Party not less than
three Business Days' notice, to Convert all (but not less than all) of any such
Eurodollar Loans into Base Rate Loans.

      Section 3.4.  Notice; Change of Applicable Lending Office.  A Lender Party
shall notify Borrower of any event occurring after the date of this Agreement
that will entitle such Lender Party to compensation under Section 3.2, 3.3 or
3.5 hereof as promptly as practicable, but in any event within 90 days, after
such Lender Party obtains actual knowledge thereof; provided, that (i) if such
Lender Party fails to give such notice within 90 days after it obtains actual
knowledge of such an event, such Lender Party shall, with respect to
compensation payable pursuant to Section 3.2, 3.3 or 3.5 in respect of any costs
resulting from such event, only be entitled to payment under Section 3.2, 3.3 or
3.5 hereof for costs incurred from and after the date 90 days prior to the date
that such Lender Party does give such notice and (ii) such Lender Party will
designate a different Applicable Lending Office for the Loans affected by such
event if such designation will avoid the need for, or reduce the amount of, such
compensation and will not, in the sole opinion of such Lender Party, be
disadvantageous to such Lender Party, except that such Lender Party shall have
no obligation to designate an Applicable Lending Office located in the United
States of America. Each Lender Party will furnish to Borrower a certificate
setting forth the basis and amount of each request by such Lender Party for
compensation under Section 3.2, 3.3 or 3.5 hereof.

      Section 3.5.  Availability.  If (a) any change in applicable Laws, or in
the interpretation or administration thereof of or in any jurisdiction
whatsoever, domestic or foreign, shall make it unlawful or impracticable for any
Lender Party to fund or maintain Eurodollar Loans or to issue or participate in
Letters of Credit, or shall materially restrict the authority of any Lender
Party to purchase or take offshore deposits of dollars (i.e., "eurodollars"), or
(b) any Lender Party determines that matching deposits appropriate to fund or
maintain any Eurodollar Loan are not available to it, or (c) any Lender Party
determines that the formula for calculating the Eurodollar Rate does not fairly
reflect the cost to such Lender Party of making or maintaining loans based on
such rate, then, upon notice by such Lender Party to Borrower and Administrative
Agent, Borrower's right to elect Eurodollar Loans from such Lender Party (or, if
applicable, to obtain Letters of Credit) shall be suspended to the extent and
for the duration of such illegality, 

                                       35

 
impracticability or restriction and all Eurodollar Loans of such Lender Party
which are then outstanding or are then the subject of any Borrowing Notice and
which cannot lawfully or practicably be maintained or funded shall immediately
become or remain, or shall be funded as, Base Rate Loans of such Lender Party.
Borrower agrees to indemnify each Lender Party and hold it harmless against all
costs, expenses, claims, penalties, liabilities and damages which may result
from any such change in Law, interpretation or administration. Such
indemnification shall be on an after-tax basis, taking into account any taxes
imposed on the amounts paid as indemnity.

      Section 3.6.  Funding Losses.  In addition to its other obligations
hereunder, Borrower will indemnify each Lender Party against, and reimburse each
Lender Party on demand for, any loss or expense incurred or sustained by such
Lender Party (including any loss or expense incurred by reason of the
liquidation or reemployment of deposits or other funds acquired by a Lender
Party to fund or maintain Eurodollar Loans), as a result of (a) any payment or
prepayment (whether or not authorized or required hereunder) of all or a portion
of a Eurodollar Loan on a day other than the day on which the applicable
Interest Period ends, (b) any payment or prepayment, whether or not required
hereunder, of a Loan made after the delivery, but before the effective date, of
a Continuation/Conversion Notice, if such payment or prepayment prevents such
Continuation/Conversion Notice from becoming fully effective, (c) the failure of
any Loan to be made or of any Continuation/Conversion Notice to become effective
due to any condition precedent not being satisfied or due to any other action or
inaction of any Restricted Person, or (d) any Conversion (whether or not
authorized or required hereunder) of all or any portion of any Eurodollar Loan
into a Base Rate Loan or into a different Eurodollar Loan on a day other than
the day on which the applicable Interest Period ends.  Such indemnification
shall be on an after-tax basis, taking into account any taxes imposed on the
amounts paid as indemnity.

      Section 3.7.  Reimbursable Taxes.  Borrower covenants and agrees that:

          (a)  Borrower will indemnify each Lender Party against and reimburse
     each Lender Party for all present and future income, stamp and other taxes,
     levies, costs and charges whatsoever imposed, assessed, levied or collected
     on or in respect of this Agreement or any Eurodollar Loans or Letters of
     Credit (whether or not legally or correctly imposed, assessed, levied or
     collected), excluding, however, any taxes imposed on or measured by the
     overall net income of Administrative Agent or such Lender Party or any
     Applicable Lending Office of such Lender Party by any jurisdiction in which
     such Lender Party or any such Applicable Lending Office is located (all
     such non-excluded taxes, levies, costs and charges being collectively
     called "Reimbursable Taxes" in this section).  Such indemnification shall
     be on an after-tax basis, taking into account any taxes imposed on the
     amounts paid as indemnity.

          (b)  All payments on account of the principal of, and interest on,
     each Lender Party's Loans and Note, and all other amounts payable by
     Borrower to any Lender Party hereunder, shall be made in full without set-
     off or counterclaim and shall be made free and clear of and without
     deductions or withholdings of any nature by reason of any Reimbursable
     Taxes, all of which will be for the account of Borrower.  In the event of
     Borrower being compelled by Law to make any such deduction or withholding
     from any payment to any Lender Party, Borrower shall pay on the due date of
     such payment, by 

                                       36

 
     way of additional interest, such additional amounts as are needed to cause
     the amount receivable by such Lender Party after such deduction or
     withholding to equal the amount which would have been receivable in the
     absence of such deduction or withholding. If Borrower should make any
     deduction or withholding as aforesaid, Borrower shall within 60 days
     thereafter forward to such Lender Party an official receipt or other
     official document evidencing payment of such deduction or withholding.

          (c)  If Borrower is ever required to pay any Reimbursable Tax with
     respect to any Eurodollar Loan, Borrower may elect, by giving to
     Administrative Agent and such Lender Party not less than three Business
     Days' notice, to Convert all (but not less than all) of any such Eurodollar
     Loan into a Base Rate Loan, but such election shall not diminish Borrower's
     obligation to pay all Reimbursable Taxes.

          (d)  Notwithstanding the foregoing provisions of this section,
     Borrower shall be entitled, to the extent it is required to do so by Law,
     to deduct or withhold (and not to make any indemnification or reimbursement
     for) income or other similar taxes imposed by the United States of America
     (other than any portion thereof attributable to a change in federal income
     tax Laws effected after the date hereof) from interest, fees or other
     amounts payable hereunder for the account of any Lender Party, other than a
     Lender Party (i) who is a U.S. person for Federal income tax purposes or
     (ii) who has the Prescribed Forms on file with Administrative Agent (with
     copies provided to Borrower) for the applicable year to the extent
     deduction or withholding of such taxes is not required as a result of the
     filing of such Prescribed Forms, provided that if Borrower shall so deduct
     or withhold any such taxes, it shall provide a statement to Administrative
     Agent and such Lender Party, setting forth the amount of such taxes so
     deducted or withheld, the applicable rate and any other information or
     documentation which such Lender Party may reasonably request for assisting
     such Lender Party to obtain any allowable credits or deductions for the
     taxes so deducted or withheld in the jurisdiction or jurisdictions in which
     such Lender Party is subject to tax.  As used in this section, "Prescribed
     Forms" means such duly executed forms or statements, and in such number of
     copies, which may, from time to time, be prescribed by Law and which,
     pursuant to applicable provisions of (x) an income tax treaty between the
     United States and the country of residence of the Lender Party  providing
     the forms or statements, (y) the Code, or (z) any applicable rules or
     regulations thereunder, permit Borrower to make payments hereunder for the
     account of such Lender Party free of such deduction or withholding of
     income or similar taxes.

     Section 3.8    Replacement of Lenders.  If any Lender Party seeks
reimbursement for increased costs under Sections 3.2 through 3.7, then within
ninety days thereafter -- provided no Event of Default then exists -- Borrower
shall have the right (unless such Lender Party withdraws its request for
additional compensation) to replace such Lender Party by requiring such Lender
Party to assign its Loans and Notes and its commitments hereunder to an Eligible
Transferee reasonably acceptable to Administrative Agent and to Borrower,
provided that: (i) all Obligations of Borrower owing to such Lender Party being
replaced (including such increased costs, but excluding principal and accrued
interest on the Notes being assigned) shall be paid in full to such Lender Party
concurrently with such assignment, and (ii) the replacement Eligible Transferee
shall purchase the Note being assigned by paying to such Lender Party a price
equal to the principal

                                       37

 
amount thereof plus accrued and unpaid interest and accrued and unpaid
commitment fees thereon. In connection with any such assignment Borrower,
Administrative Agent, such Lender Party and the replacement Eligible Transferee
shall otherwise comply with Section 10.5. Notwithstanding the foregoing rights
of Borrower under this section, however, Borrower may not replace any Lender
Party which seeks reimbursement for increased costs under Section 3.2 through
3.7 unless Borrower is at the same time replacing all Lender Parties which are
then seeking such compensation.


                  ARTICLE IV - Conditions Precedent to Credit

      Section 4.1.  Documents to be Delivered.  This Agreement shall not be
effective to amend or restate the Existing Agreement or govern the indebtedness,
obligations or liabilities thereunder and no Lender has any obligation to make
its first Loan, and LC Issuer has no obligation to issue the first Letter of
Credit unless Administrative Agent shall have received all of the following, at
Administrative Agent's office in Boston, Massachusetts, duly executed and
delivered and in form, substance and date satisfactory to Administrative Agent:

          (a)  This Agreement and any other documents that Lenders are to
     execute in connection herewith.

          (b)  Each Note.

          (c)  Each Security Document listed in the Security Schedule.

          (d)  Certain certificates including:

               (i)  An "Omnibus Certificate" of the secretary and of the
          president of General Partner, which shall contain the names and
          signatures of the officers of General Partner authorized to execute
          Loan Documents and which shall certify to the truth, correctness and
          completeness of the following exhibits attached thereto: (1) a copy of
          resolutions duly adopted by the Board of Directors of General Partner
          and in full force and effect at the time this Agreement is entered
          into, authorizing the execution of this Agreement and the other Loan
          Documents delivered or to be delivered in connection herewith and the
          consummation of the transactions contemplated herein and therein, (2)
          a copy of the charter documents of each Restricted Person and all
          amendments thereto, certified by the appropriate official of such
          Restricted Person's state of organization, and (3) a copy of any
          bylaws or agreement of limited partnership of each Restricted Person;
          and

               (ii)  A certificate of the president and of the chief financial
          officer of General Partner, regarding satisfaction of Section 4.2.

          (e)  A certificate (or certificates) of the due formation, valid
     existence and good standing of each Restricted Person in its respective
     state of organization, issued by the appropriate authorities of such
     jurisdiction, and certificates of each Restricted Person's

                                       38

 
     good standing and due qualification to do business, issued by appropriate
     officials in any states in which such Restricted Person owns property
     subject to Security Documents.

          (f)  Documents similar to those specified in subsections (d)(i) and
     (e) of this section with respect to each Guarantor and the execution by it
     of its guaranty of Borrower's Obligations.

          (g)  A favorable opinion of Michael Patterson, Esq., General Counsel
     for Restricted Persons, substantially in the form set forth in Exhibit G-1,
     Fulbright & Jaworski L.L.P., special Texas and New York counsel to
     Restricted Persons, substantially in the form set forth in Exhibit G-2,
     Andrews & Kurth L.L.P., special counsel to Restricted Persons,
     substantially in the form of Exhibit G-3, and local counsel for the states
     of Arizona, California, New Mexico and Oklahoma satisfactory to
     Administrative Agent.

          (h)  The Initial Financial Statements.

          (i)  Certificates or binders evidencing Restricted Persons' insurance
     in effect on the date hereof.

          (j)  Copies of such permits and approvals regarding the property and
     business of Restricted Persons as Administrative Agent may request.

          (k)  A certificate signed by the chief executive officer of General
     Partner in form and detail acceptable to Administrative Agent confirming
     the insurance that is in effect as of the date hereof and certifying that
     such insurance is customary for the businesses conducted by Restricted
     Persons and is in compliance with the requirements of this Agreement.

          (l)  Payment of all commitment, facility, agency and other fees
     required to be paid to any Lender pursuant to any Loan Documents or any
     commitment agreement heretofore entered into.

          (m)  The Intercreditor Agreement with the lenders party to the All
     American Agreement in the form of Exhibit K hereto.

      Section 4.2.  Additional Conditions to Initial Credit.  This Agreement
shall not be effective to amend or restate the Existing Agreement or govern the
indebtedness, obligations or liabilities thereunder and no Lender has any
obligation to make its first Loan, and LC Issuer has no obligation to issue the
first Letter of Credit unless prior to or contemporaneously with the initial
Loan or initial Letter of Credit issuance hereunder the following conditions
precedent have been satisfied:

          (a) The Offering and all of the transactions contemplated under the
     Offering Documents shall have been consummated, in compliance with the
     terms and conditions thereof, and all representations and warranties made
     by any party to the Offering Documents shall be true and correct.

                                       39

 
          (b)   Each Restricted Person shall have executed and delivered the All
     American Credit Agreement and all conditions precedent to the All American
     Agreement have been satisfied.

          (c)   After giving effect to each of the transactions under the
     Offering Documents, all representations and warranties made by any
     Restricted Person in any Loan Document shall be true on and as of the date
     of such Loan or the date of issuance of such Letter of Credit as if such
     representations and warranties had been made as of the date of such Loan or
     the date of issuance of such Letter of Credit.

          (d)   General Partner shall have delivered to Administrative Agent a
     Consolidated balance sheet for Plains MLP and its Subsidiaries certified by
     the chief financial officer of General Partner, reflecting compliance with
     each event specified in Sections 7.11 through 7.15, inclusive.

          (e)   The Borrowing Base as of the date of such first Loan and first
     Letter of Credit shall be at least $5,000,000 more than the initial
     Facility Usage on such date after giving effects to the Loans and Letters
     of Credit requested for such date, and General Partner shall have delivered
     to the Administrative Agent a Borrowing Base Report in reasonable detail
     demonstrating compliance with this requirement.

          (f)  Plains MLP shall have a market capitalization of at least
     $500,000,000 calculated based upon the total issued partnership units of
     Plains MLP and the market price of the publicly held portion of such
     partnership units of Plains MLP.

          (g)   Plains MLP shall have a minimum tangible net worth of
     $225,000,000.

          (h)   Each condition precedent set forth in Section 4.3 has been
     satisfied as of such effective date of this Agreement.

      Section 4.3.  Additional Conditions Precedent.  No Lender has any
obligation to make any Loan (including its first), and LC Issuer has no
obligation to issue any Letter of Credit (including its first), unless the
following conditions precedent have been satisfied:

          (a)  All representations and warranties made by any Restricted Person
     in any Loan Document shall be true on and as of the date of such Loan or
     the date of issuance of such Letter of Credit as if such representations
     and warranties had been made as of the date of such Loan or the date of
     issuance of such Letter of Credit except to the extent that such
     representation or warranty was made as of a specific date or updated,
     modified or supplemented as of a subsequent date with the consent of
     Majority Lenders.

          (b)  No Default shall exist at the date of such Loan or the date of
     issuance of such Letter of Credit.

          (c)  No Material Adverse Change shall have occurred to, and no event
     or circumstance shall have occurred that could cause a Material Adverse
     Change to, Plains

                                       40

 
     MLP's or Borrower's Consolidated financial condition or businesses since
     the date of the Initial Financial Statements.

          (d)  Each Restricted Person shall have performed and complied with all
     agreements and conditions required in the Loan Documents to be performed or
     complied with by it on or prior to the date of such Loan or the date of
     issuance of such Letter of Credit.

          (e)  The making of such Loan or the issuance of such Letter of Credit
     shall not be prohibited by any Law and shall not subject any Lender or any
     LC Issuer to any penalty or other onerous condition under or pursuant to
     any such Law.

          (f)  Administrative Agent shall have received all documents and
     instruments which Administrative Agent has then requested, in addition to
     those described in Section 4.1 (including opinions of legal counsel for
     Restricted Persons and Administrative Agent; corporate documents and
     records; documents evidencing governmental authorizations, consents,
     approvals, licenses and exemptions; and certificates of public officials
     and of officers and representatives of Borrower and other Persons), as to
     (i) the accuracy and validity of or compliance with all representations,
     warranties and covenants made by any Restricted Person in this Agreement
     and the other Loan Documents, (ii the satisfaction of all conditions
     contained herein or therein, and (ii all other matters pertaining hereto
     and thereto.  All such additional documents and instruments shall be
     satisfactory to Administrative Agent in form, substance and date.

                   ARTICLE V - Representations and Warranties

     To confirm each Lender's understanding concerning Restricted Persons and
Restricted Persons' businesses, properties and obligations and to induce each
Lender to enter into this Agreement and to extend credit hereunder, Plains MLP
and Borrower represent and warrant to each Lender that:

      Section 5.1.  No Default.  No Restricted Person is in default in the
performance of any of the covenants and agreements contained in any Loan
Document.  No event has occurred and is continuing which constitutes a Default.

      Section 5.2.  Organization and Good Standing.  Each Restricted Person is
duly organized, validly existing and in good standing under the Laws of its
jurisdiction of organization, having all powers required to carry on its
business and enter into and carry out the transactions contemplated hereby.
Each Restricted Person is duly qualified, in good standing, and authorized to do
business in all other jurisdictions within the United States wherein the
character of the properties owned or held by it or the nature of the business
transacted by it makes such qualification necessary except where the failure to
so qualify would not cause a Material Adverse Change.  Each Restricted Person
has taken all actions and procedures customarily taken in order to enter, for
the purpose of conducting business or owning property, each jurisdiction outside
the United States wherein the character of the properties owned or held by it or
the nature of the business transacted by it makes such actions and procedures
necessary except where the failure to so qualify would not cause a Material
Adverse Change.

                                       41

 
      Section 5.3.  Authorization.  Each Restricted Person has duly taken all
action necessary to authorize the execution and delivery by it of the Loan
Documents to which it is a party and to authorize the consummation of the
transactions contemplated thereby and the performance of its obligations
thereunder.  Borrower is duly authorized to borrow funds hereunder.

      Section 5.4.  No Conflicts or Consents.  The execution and delivery by the
various Restricted Persons of the Loan Documents and Offering Documents to which
each is a party, the performance by each of its obligations under such Loan
Documents and Offering Documents, and the consummation of the transactions
contemplated by the various Loan Documents and various Offering Documents, do
not and will not (i) conflict with any provision of (1) any Law, (2) the
organizational documents of any Restricted Person or any of its Affiliates, or
(3) any agreement, judgment, license, order or permit applicable to or binding
upon any Restricted Person or any of its Affiliates, (ii result in the
acceleration of any Indebtedness owed by any Restricted Person, or any of its
Affiliates, or (ii result in or require the creation of any Lien upon any assets
or properties of any Restricted Person or any of its Affiliates except as
expressly contemplated in the Loan Documents.  Except as expressly contemplated
in the Loan Documents or the Offering Documents no consent, approval,
authorization or order of, and no notice to or filing with, any Tribunal or
third party is required in connection with the execution, delivery or
performance by any Restricted Person of any Loan Document or Offering Document
or to consummate any transactions contemplated by the Loan Documents and the
Offering Documents.

      Section 5.5.  Enforceable Obligations.  This Agreement is, and the other
Loan Documents and the Offering Documents when duly executed and delivered will
be, legal, valid and binding obligations of each Restricted Person which is a
party hereto or thereto, enforceable in accordance with their terms except as
such enforcement may be limited by bankruptcy, insolvency or similar Laws of
general application relating to the enforcement of creditors' rights.

      Section 5.6.  Initial Financial Statements.  Plains MLP has heretofore
delivered to each Lender true, correct and complete copies of the Initial
Financial Statements.  The Initial Financial Statements fairly present Plains
MLP's Consolidated financial position at the date thereof and the Consolidated
results of Plains MLP's operations and Consolidated cash flows for the period
thereof.  Since the date of the annual Initial Financial Statements no Material
Adverse Change has occurred, except as reflected in the quarterly Initial
Financial Statements or in the Disclosure Schedule.  All Initial Financial
Statements were prepared in accordance with GAAP.

      Section 5.7.  Other Obligations and Restrictions.  No Restricted Person
has any outstanding Liabilities of any kind (including contingent obligations,
tax assessments, and unusual forward or long-term commitments) which are, in the
aggregate, material to Plains MLP or material with respect to Plains MLP's
Consolidated financial condition and not shown in the Initial Financial
Statements or disclosed in the Disclosure Schedule.  Except as shown in the
Initial Financial Statements or disclosed in the Disclosure Schedule, no
Restricted Person is subject to or restricted by any franchise, contract, deed,
charter restriction, or other instrument or restriction which could cause a
Material Adverse Change.

      Section 5.8.  Full Disclosure.  No certificate, statement or other
information delivered herewith or heretofore by any Restricted Person to any
Lender in connection with the negotiation

                                       42

 
of this Agreement or in connection with any transaction contemplated hereby
contains any untrue statement of a material fact or omits to state any material
fact necessary to make the statements contained herein or therein, in light of
the circumstances under which they were made, not misleading as of the date made
or deemed made. All written information furnished after the date hereof by or on
behalf of any Restricted Person to Administrative Agent or any Lender Party in
connection with this Agreement and the other Loan Documents and the transactions
contemplated hereby and thereby will be true, complete and accurate in every
material respect or based on reasonable estimates on the date as of which such
information is stated or certified. There is no fact known to any Restricted
Person that has not been disclosed to each Lender in writing which could cause a
Material Adverse Change.

      Section 5.9.  Litigation.  Except as disclosed in the Initial Financial
Statements or in the Disclosure Schedule:  (i) there are no actions, suits or
legal, equitable, arbitrative or administrative proceedings pending, or to the
knowledge of any Restricted Person threatened, against any Restricted Person
before any Tribunal which could cause a Material Adverse Change, and (ii) there
are no outstanding judgments, injunctions, writs, rulings or orders by any such
Tribunal against any Restricted Person or any Restricted Person's stockholders,
partners, directors or officers which could cause a Material Adverse Change.

      Section 5.10.  Labor Disputes and Acts of God.  Except as disclosed in the
Disclosure Schedule, neither the business nor the properties of any Restricted
Person has been affected by any fire, explosion, accident, strike, lockout or
other labor dispute, drought, storm, hail, earthquake, embargo, act of God or of
the public enemy or other casualty (whether or not covered by insurance), which
could cause a Material Adverse Change.

      Section 5.11.  ERISA Plans and Liabilities.  All currently existing ERISA
Plans are listed in the Disclosure Schedule.  Except as disclosed in the Initial
Financial Statements or in the Disclosure Schedule, no Termination Event has
occurred with respect to any ERISA Plan and all ERISA Affiliates are in
compliance with ERISA in all material respects.  No ERISA Affiliate is required
to contribute to, or has any other absolute or contingent liability in respect
of, any "multiemployer plan" as defined in Section 4001 of ERISA.  Except as set
forth in the Disclosure Schedule:  (i) no "accumulated funding deficiency" (as
defined in Section 412(a) of the Code exists with respect to any ERISA Plan,
whether or not waived by the Secretary of the Treasury or his delegate, and (ii)
the current value of each ERISA Plan's benefits does not exceed the current
value of such ERISA Plan's assets available for the payment of such benefits by
more than $500,000.

      Section 5.12.  Compliance with Laws.  Except as set forth in the
Disclosure Schedule, each Restricted Person is conducting its businesses in
compliance with all applicable Laws, including Environmental Laws, and has all
permits, licenses and authorizations required in connection with the conduct of
its businesses, except to the extent failure to have any such permit, license or
authorization could not cause a Material Adverse Change.  Each Restricted Person
is in compliance with the terms and conditions of all such permits, licenses and
authorizations, and is also in compliance with all other limitations,
restrictions, conditions, standards, prohibitions, requirements, obligations,
schedules and timetables contained in any Law, including applicable
Environmental Law, or in any regulation, code, plan, order, decree, judgment,
injunction, notice

                                       43

 
or demand letter issued, entered, promulgated or approved thereunder, except to
the extent failure to comply could not cause a Material Adverse Change.

      Section 5.13.  Environmental Laws.  As used in this section: "CERCLA"
means the Comprehensive Environmental Response, Compensation and Liability Act
of 1980, as amended, "CERCLIS" means the Comprehensive Environmental Response,
Compensation and Liability Information System List of the Environmental
Protection Agency, and "Release" has the meaning given such term in 42 U.S.C.
(S) 9601(22).  Without limiting the provisions of Section 5.12 and except as set
forth in the Disclosure Schedule:

     (a)  No notice, notification, demand, request for information, citation,
summons or order has been issued, no complaint has been filed, no penalty has
been assessed, and no investigation or review is pending or threatened by any
Tribunal or any other Person with respect to any of the following which in the
aggregate could cause a Material Adverse Change (i) any alleged generation,
treatment, storage, recycling, transportation, disposal, or Release of any
Hazardous Materials, either by any Restricted Person or on any property owned by
any Restricted Person, (ii) any remedial action which might be needed to respond
to any such alleged generation, treatment, storage, recycling, transportation,
disposal, or Release, or (iii) any alleged failure by any Restricted Person to
have any permit, license or authorization required in connection with the
conduct of its business or with respect to any such generation, treatment,
storage, recycling, transportation, disposal, or Release.

     (b)  No Restricted Person otherwise has any known material contingent
liability in connection with any alleged generation, treatment, storage,
recycling, transportation, disposal, or Release of any Hazardous Materials.

     (c)  No Restricted Person has handled any Hazardous Materials, other than
as a generator, on any properties now or previously owned or leased by any
Restricted Person to an extent that such handling has caused, or could cause, a
Material Adverse Change.

     (d)  Except to the extent that the following in the aggregate has not
caused and could not cause a Material Adverse Change:

     (i) no PCBs are or have been present at any properties now or previously
     owned or leased by any Restricted Person;

     (ii) no asbestos is or has been present at any properties now or previously
     owned or leased by any Restricted Person;

     (iii) there are no underground storage tanks for Hazardous Materials,
     active or abandoned, at any properties now or previously owned or leased by
     any Restricted Person; and

     (iv)  no Hazardous Materials have been Released at, on or under any
     properties now or previously owned or leased by any Restricted Person.

                                       44

 
     (e)  No Restricted Person has transported or arranged for the
transportation of any Hazardous Material to any location which is listed on the
National Priorities List under CERCLA, any location listed for possible
inclusion on the National Priorities List by the Environmental Protection Agency
in CERCLIS, nor, except to the extent that has not caused and could not cause a
Material Adverse Change, any location listed on any similar state list or which
is the subject of federal, state or local enforcement actions or other
investigations which may lead to claims against any Restricted Person for clean-
up costs, remedial work, damages to natural resources or for personal injury
claims, including, but not limited to, claims under CERCLA.

     (f)  No property now or previously owned or leased by any Restricted Person
is listed or proposed for listing on the National Priority list promulgated
pursuant to CERCLA, in CERCLIS, nor, except to the extent that has not caused
and could not cause a Material Adverse Change, on any similar state list of
sites requiring investigation or clean-up.

     (g)  There are no Liens arising under or pursuant to any Environmental Laws
on any of the real properties or properties owned or leased by any Restricted
Person, and no government actions of which Borrower is aware have been taken or
are in process which could subject any of such properties to such Liens; nor
would any Restricted Person be required to place any notice or restriction
relating to the presence of Hazardous Materials at any properties owned by it in
any deed to such properties.

     (h)  There have been no environmental investigations, studies, audits,
tests, reviews or other analyses for ground water or soil contamination relating
to the Release of Hazardous Materials conducted by or which are in the
possession of any Restricted Person in relation to any properties or facility
now or previously owned or leased by any Restricted Person which have not been
made available to Administrative Agent.

      Section 5.14.  Names and Places of Business.  No Restricted Person has,
during the preceding five years, had, been known by, or used any other trade or
fictitious name, except as disclosed in the Disclosure Schedule.  Except as
otherwise indicated in the Disclosure Schedule, the chief executive office and
principal place of business of each Restricted Person are (and for the preceding
five years have been) located at the address of Borrower set out in Section
10.3. Except as indicated in the Disclosure Schedule, no Restricted Person has
any other office or place of business.

      Section 5.15.  Borrower's Subsidiaries.  Borrower does not presently have
any Subsidiary or own any stock in any other corporation or association except
those listed in the Disclosure Schedule.  Neither Borrower nor any Restricted
Person is a member of any general or limited partnership, joint venture or
association of any type whatsoever except those listed in the Disclosure
Schedule.  Borrower owns, directly or indirectly, the equity interest in each of
its Subsidiaries which is indicated in the Disclosure Schedule.

      Section 5.16.  Title to Properties; Licenses.  Each Restricted Person has
good and defensible title to all of its material properties and assets, free and
clear of all Liens other than Permitted Liens and of all impediments to the use
of such properties and assets in such Restricted Person's business.  Each
Restricted Person possesses all licenses, permits, franchises, patents,

                                       45

 
copyrights, trademarks and trade names, and other intellectual property (or
otherwise possesses the right to use such intellectual property without
violation of the rights of any other Person) which are necessary to carry out
its business as presently conducted and as presently proposed to be conducted
hereafter, and no Restricted Person is in violation in any material respect of
the terms under which it possesses such intellectual property or the right to
use such intellectual property.

      Section 5.17.  Government Regulation.  Neither Borrower nor any other
Restricted Person owing Obligations is subject to regulation under the Public
Utility Holding Company Act of 1935, the Investment Company Act of 1940 (as any
of the preceding acts have been amended) or any other Law which regulates the
incurring by such Person of Indebtedness, including Laws relating to common
contract carriers or the sale of electricity, gas, steam, water or other public
utility services.  Neither Borrower nor any other Restricted Person is subject
to regulation under the Federal Power Act which would violate, result in a
default of, or prohibit the effectiveness or the performance of any of the
provisions of the Loan Documents.

      Section 5.18.  Insider.  No Restricted Person, nor any Person having
"control" (as that term is defined in 12 U.S.C. (S) 375b(9) or in regulations
promulgated pursuant thereto) of any Restricted Person, is a "director" or an
"executive officer" or "principal shareholder" (as those terms are defined in 12
U.S.C. (S) 375b(8) or (9) or in regulations promulgated pursuant thereto) of any
Lender, of a bank holding company of which any Lender is a Subsidiary or of any
Subsidiary of a bank holding company of which any Lender is a Subsidiary.

      Section 5.19.  Solvency.  Upon giving effect to the issuance of the Notes,
the execution of the Loan Documents by Borrower and each Guarantor and the
consummation of the transactions contemplated hereby, Borrower and each
Guarantor will be solvent (as such term is used in applicable bankruptcy,
liquidation, receivership, insolvency or similar Laws).

      Section 5.20. Credit Arrangements.  The Disclosure Schedule contains a
complete and correct list, as of the date of this Agreement, of each credit
agreement, loan agreement, indenture, purchase agreement, guaranty or other
arrangement providing for or otherwise relating to any Indebtedness or any
extension of credit (or commitment for any extension of credit) to, or guaranty
by, any Restricted Person, or to which any Restricted Person is subject, other
than the Loan Documents, and the aggregate principal or face amount outstanding
or which may become outstanding under each such arrangement is correctly
described in the Disclosure Schedule.  No Restricted Person is subject to any
restriction under any credit agreement, loan agreement, indenture, purchase
agreement, guaranty or other arrangement providing for or otherwise relating to
any Indebtedness or any extension of credit (or commitment for any extension of
credit) to, or guaranty by, any Affiliate, other than another Restricted Person.

      Section 5.21. Year 2000.

     (a) Restricted Persons have (i) begun analyzing the operations of
Restricted Persons and their Subsidiaries and Affiliates that could be adversely
affected by failure to be become Year 2000 compliant (that is, that computer
applications, imbedded microchips and other systems will be able to perform
date-sensitive functions prior to and after December 31, 1999) and (ii)

                                       46

 
developed a plan for becoming Year 2000 compliant in a timely manner, the
implementation of which is on schedule in all material respects.  Plains MLP and
Borrower reasonably believe that Restricted Persons and their Affiliates will
become Year 2000 compliant for their operations on a timely basis except to the
extent that a failure to do so could not reasonably be expected to cause a
Material Adverse Change.

     (b) Plains MLP and Borrower reasonably believe any suppliers and vendors
that are material to the operations of Restricted Persons or their Subsidiaries
and Affiliates will be Year 2000 compliant for their own computer applications
except to the extent that a failure to do so could not reasonably be expected to
cause a Material Adverse Change.


                       ARTICLE VI - Affirmative Covenants

     To conform with the terms and conditions under which each Lender is willing
to have credit outstanding to Borrower, and to induce each Lender to enter into
this Agreement and extend credit hereunder, Plains MLP and Borrower covenant and
agree that until the full and final payment of the Obligations and the
termination of this Agreement, unless Majority Lenders, or all Lenders as
required under Section 10.1, have previously agreed otherwise:

      Section 6.1.  Payment and Performance.  Each Restricted Person will pay
all amounts due under the Loan Documents, to which it is a party,  in accordance
with the terms thereof and will observe, perform and comply with every covenant,
term and condition expressed in the Loan Documents to which it is a party.

      Section 6.2.  Books, Financial Statements and Reports.  Each Restricted
Person will at all times maintain full and accurate books of account and
records.  Plains MLP will maintain and will cause its Subsidiaries to maintain a
standard system of accounting, will maintain its Fiscal Year, and will furnish
the following statements and reports to each Lender at Restricted Person's
expense:

          (a)  As soon as available, and in any event within ninety (90) days
     after the end of each Fiscal Year (i) complete Consolidated financial
     statements of Plains MLP together with all notes thereto, prepared in
     reasonable detail in accordance with GAAP, together with an unqualified
     opinion, based on an audit using generally accepted auditing standards, by
     PricewaterhouseCoopers LLP, or other independent certified public
     accountants selected by General Partner and acceptable to Majority Lenders,
     stating that such Consolidated financial statements have been so prepared
     and (ii) supporting unaudited consolidating balance sheets and statements
     of income of each other Restricted Person (except for any Restricted Person
     whose financial statements are substantially the same as those of Plains
     MLP).  These financial statements shall contain a Consolidated and
     consolidating balance sheet as of the end of such Fiscal Year and
     Consolidated and consolidating statements of earnings for such Fiscal Year.
     Such Consolidated financial statements shall set forth in comparative form
     the corresponding figures for the preceding Fiscal Year.  In addition,
     within ninety (90) days after the end of each Fiscal Year Plains MLP will
     furnish a certificate signed by such accountants (i) stating that they have
     read

                                       47

 
     this Agreement, (ii) containing calculations showing compliance (or
     non-compliance) at the end of such Fiscal Year with the requirements of
     Sections 7.11 through 7.15, inclusive, and (iii) further stating that in
     making their examination and reporting on the Consolidated financial
     statements described above they obtained no knowledge of any Default
     existing at the end of such Fiscal Year, or, if they did so conclude that a
     Default existed, specifying its nature and period of existence.

          (b)  As soon as available, and in any event within forty-five (45)
     days after the end of each of the first three Fiscal Quarters of each
     Fiscal Year (i) Plains MLP's Consolidated balance sheet as of the end of
     such Fiscal Quarter and Consolidated statements of Plains MLP's earnings
     and cash flows for such Fiscal Quarter and for the period from the
     beginning of the then current Fiscal Year to the end of such Fiscal
     Quarter, and (ii) supporting consolidating balance sheets and statements of
     income of each other Restricted Person (except for any Restricted Person
     whose financial statements are substantially the same as those of Plains
     MLP), all in reasonable detail and prepared in accordance with GAAP,
     subject to changes resulting from normal year-end adjustments, and as soon
     as available, and in any event within forty-five (45) days after the end of
     the last Fiscal Quarter of each Fiscal Year, Plains MLP's unaudited
     Consolidated balance sheet as of the end of such Fiscal Quarter and income
     statement for such Fiscal Quarter and for the period from the beginning of
     the current Fiscal Year to the end of such Fiscal Quarter.  In addition
     Plains MLP will, together with each such set of financial statements and
     each set of financial statements furnished under subsection (a) of this
     section, furnish a certificate in the form of Exhibit F signed by the chief
     financial officer of General Partner stating that such financial statements
     are accurate and complete in all material respects (subject to normal year-
     end adjustments), stating that he has reviewed the Loan Documents,
     containing calculations showing compliance (or non-compliance) at the end
     of such Fiscal Quarter with the requirements of Sections 7.11 through 7.16,
     inclusive and stating that no Default exists at the end of such Fiscal
     Quarter or at the time of such certificate or specifying the nature and
     period of existence of any such Default.

          (c)  Promptly upon their becoming available, copies of all financial
     statements, reports, notices and proxy statements sent by Plains MLP to its
     unit holders and all registration statements, periodic reports and other
     statements and schedules filed by Plains MLP with any securities exchange,
     the Securities and Exchange Commission or any similar governmental
     authority.

          (d)  As soon as available, and in any event within ninety (90) days
     after the end of each Fiscal Year,  a business and financial plan for
     Plains MLP (in form reasonably satisfactory to Administrative Agent),
     prepared or caused to be prepared by a senior financial officer thereof,
     setting forth for the first year thereof, quarterly financial projections
     and budgets for Plains MLP, and thereafter yearly financial projections and
     budgets during the Commitment Period.

          (e)  On the twenty-sixth (26th) day of each calendar month (i) a
     Borrowing Base Report in the form of Exhibit H duly completed by an
     authorized officer of General Partner and conforming with the requirements
     of Section 2.13, and (ii) a statement

                                       48

 
     reconciling such report with the Borrowing Base Report delivered on the
     26th day of the preceding calendar month.

          (f)  As soon as available, and in any event within thirty-five (35)
     days after the end of each calendar month, a report setting forth for such
     month aggregate volumes and margins for all marketing activities of
     Restricted Persons.

          (g)  As soon as available, and in any event within thirty (30) days
     after the end of each Fiscal Year, an environmental compliance certificate
     signed by the president or chief executive officer of General Partner in
     the form attached hereto as Exhibit I.  Further, if requested by
     Administrative Agent, Restricted Persons shall permit and cooperate with an
     environmental and safety review made in connection with the operations of
     Restricted Persons' properties one time during each Fiscal Year beginning
     with the Fiscal Year 1999, by Pilko & Associates, Inc. or other consultants
     selected by Administrative Agent which review shall, if requested by
     Administrative Agent, be arranged and supervised by environmental legal
     counsel for Administrative Agent, all at Restricted Persons' cost and
     expense.  The consultant shall render a verbal or written report, as
     specified by Administrative Agent, based upon such review at Restricted
     Persons' cost and expense and a copy thereof will be provided to Restricted
     Persons.

          (h)  Concurrently with the annual renewal of Restricted Persons'
     insurance policies, Restricted Persons shall at their own cost and expense,
     if requested by Administrative Agent in writing, cause a certificate or
     report to be issued by Administrative Agent's professional insurance
     consultants or other insurance consultants satisfactory to Administrative
     Agent certifying that Restricted Persons' insurance for the next succeeding
     year after such renewal (or for such longer period for which such insurance
     is in effect) complies with the provisions of this Agreement and the
     Security Documents.

      Section 6.3.  Other Information and Inspections.  In each case subject to
the last sentence of this Section 6.3, each Restricted Person will furnish to
each Lender any information which Administrative Agent or any Lender may from
time to time request concerning any covenant, provision or condition of the Loan
Documents or any matter in connection with Restricted Persons' businesses and
operations.  In each case subject to the last sentence of this Section 6.3, each
Restricted Person will permit representatives appointed by Administrative Agent
(including independent accountants, auditors, agents, attorneys, appraisers and
any other Persons) to visit and inspect during normal business hours any of such
Restricted Person's property, including its books of account, other books and
records, and any facilities or other business assets, and to make extra copies
therefrom and photocopies and photographs thereof, and to write down and record
any information such representatives obtain, and each Restricted Person shall
permit Administrative Agent or its representatives to investigate and verify the
accuracy of the information furnished to Administrative Agent or any Lender in
connection with the Loan Documents and to discuss all such matters with its
officers, employees and, upon prior notice to Borrower, its representatives.
Each of the foregoing inspections shall be made subject to compliance with
applicable safety standards and the same conditions applicable to any Restricted
Person in respect of property of that Restricted Person on the premises of
Persons other than a Restricted Person or an Affiliate of a Restricted Person,
and all information, books and records

                                       49

 
furnished or requested to be furnished, or of which copies, photocopies or
photographs are made or requested to be made, all information to be investigated
or verified and all discussions conducted with any officer, employee or
representative of any Restricted Person shall be subject to any applicable
attorney-client privilege exceptions which the Restricted Person determines is
reasonably necessary and compliance with conditions to disclosures under non-
disclosure agreements between any Restricted Person and Persons other than a
Restricted Person or an Affiliate of a Restricted Person and the express
undertaking of each Person acting at the direction of or on behalf of any Lender
Party to be bound by the confidentiality provisions of Section 10.6 of this
Agreement.

      Section 6.4.  Notice of Material Events and Change of Address.  Each
Restricted Person will notify each Lender Party, not later than five (5)
Business Days after any executive officer of Restricted Persons has knowledge
thereof, stating that such notice is being given pursuant to this Agreement, of:

          (a)  the occurrence of any Material Adverse Change,

          (b)  the occurrence of any Default,

          (c)  the acceleration of the maturity of any Indebtedness owed by any
     Restricted Person or of any default by any Restricted Person under any
     indenture, mortgage, agreement, contract or other instrument to which any
     of them is a party or by which any of them or any of their properties is
     bound, if such acceleration or default could cause a Material Adverse
     Change,

          (d)  the occurrence of any Termination Event,

          (e)  any claim of $1,000,000 or more, any notice of potential
     liability under any Environmental Laws which might be reasonably likely to
     exceed such amount, or any other material adverse claim asserted against
     any Restricted Person or with respect to any Restricted Person's properties
     taken as a whole, and

          (f)  the filing of any suit or proceeding against any Restricted
     Person in which an adverse decision could cause a Material Adverse Change.

Upon the occurrence of any of the foregoing, Restricted Persons will take all
necessary or appropriate steps to remedy promptly any such Material Adverse
Change, Default, acceleration, default, or Termination Event to protect against
any such adverse claim, to defend any such suit or proceeding, and to resolve
all controversies on account of any of the foregoing.  Restricted Persons will
also notify Administrative Agent and Administrative Agent's counsel in writing
at least twenty Business Days prior to the date that any Restricted Person
changes its name or the location of its chief executive office or principal
place of business or the place where it keeps its books and records concerning
the Collateral, furnishing with such notice any necessary financing statement
amendments or requesting Administrative Agent and its counsel to prepare the
same.

                                       50

 
Borrower will promptly notify Administrative Agent in the event Borrower
determines that any computer application which is material to the operations of
Borrower, its Subsidiaries, its Affiliates or any of its material vendors or
suppliers will not be fully Year 2000 compliant on a timely basis, except to the
extent that such failure could not reasonably be expected to cause a Material
Adverse Change.

      Section 6.5.  Maintenance of Properties.  Each Restricted Person will
maintain, preserve, protect, and keep all Collateral and all other property used
or useful in the conduct of its business in good condition (ordinary wear and
tear excepted) and in compliance with all applicable Laws, and will from time to
time make all repairs, renewals and replacements needed to enable the business
and operations carried on in connection therewith to be promptly and
advantageously conducted at all times.

      Section 6.6.  Maintenance of Existence and Qualifications.  Each
Restricted Person will maintain and preserve its existence and its rights and
franchises in full force and effect and will qualify to do business in all
states or jurisdictions where required by applicable Law, except where the
failure so to qualify will not cause a Material Adverse Change.

      Section 6.7.  Payment of Trade Liabilities, Taxes, etc.  Each Restricted
Person will (a) timely file all required tax returns including any extensions;
(b) timely pay all taxes, assessments, and other governmental charges or levies
imposed upon it or upon its income, profits or property; (c) within one hundred
twenty (120) days after the date such goods are delivered or such services are
rendered, pay all Liabilities owed by it on ordinary trade terms to vendors,
suppliers and other Persons providing goods and services used by it in the
ordinary course of its business; (d) pay and discharge when due all other
Liabilities now or hereafter owed by it; and (e) maintain appropriate accruals
and reserves for all of the foregoing in accordance with GAAP.  Each Restricted
Person may, however, delay paying or discharging any of the foregoing so long as
it is in good faith contesting the validity thereof by appropriate proceedings,
if necessary,  and has set aside on its books adequate reserves therefor which
are required by GAAP.

      Section 6.8.  Insurance.  Each Restricted Person shall at all times
maintain insurance for its property in accordance with the Insurance Schedule
which insurance shall be by financially sound and reputable insurers.  Borrower
will maintain any additional insurance coverage as described in the respective
Security Documents.  Upon demand by Administrative Agent any insurance policies
covering Collateral shall be endorsed (a) to provide for payment of losses to
Administrative Agent as its interests may appear, (b) to provide that such
policies may not be canceled or reduced or affected in any material manner for
any reason without fifteen days prior notice to Administrative Agent, and (c) to
provide for any other matters specified in any applicable Security Document or
which Administrative Agent may reasonably require.  Each Restricted Person shall
at all times maintain insurance against its liability for injury to persons or
property in accordance with the Insurance Schedule, which insurance shall be by
financially sound and reputable insurers.  Without limiting the foregoing, each
Restricted Person shall at all time maintain liability insurance in accordance
with the Insurance Schedule.

      Section 6.9.  Performance on Borrower's Behalf.  If any Restricted Person
fails to pay any taxes, insurance premiums, expenses, attorneys' fees or other
amounts it is required to pay under

                                       51

 
any Loan Document, Administrative Agent may pay the same after notice of such
payment by Administrative Agent is given to Borrower. Borrower shall immediately
reimburse Administrative Agent for any such payments and each amount paid by
Administrative Agent shall constitute an Obligation owed hereunder which is due
and payable on the date such amount is paid by Administrative Agent.

      Section 6.10.  Interest.  Borrower hereby promises to each Lender to pay
interest at the Default Rate on all Obligations (including Obligations to pay
fees or to reimburse or indemnify any Lender) which Borrower has in this
Agreement promised to pay to such Lender and which are not paid when due.  Such
interest shall accrue from the date such Obligations become due until they are
paid.

      Section 6.11.  Compliance with Agreements and Law.  Each Restricted Person
will perform all material obligations it is required to perform under the terms
of each indenture, mortgage, deed of trust, security agreement, lease, and
franchise, and each material agreement, contract or other instrument or
obligation to which it is a party or by which it or any of its properties is
bound.  Each Restricted Person will conduct its business and affairs in
compliance with all Laws applicable thereto.

      Section 6.12.  Environmental Matters; Environmental Reviews.

     (a)  Each Restricted Person will comply in all material respects with all
Environmental Laws now or hereafter applicable to such Restricted Person as well
as all contractual obligations and agreements with respect to environmental
remediation or other environmental matters and shall obtain, at or prior to the
time required by applicable Environmental Laws, all environmental, health and
safety permits, licenses and other authorizations necessary for its operations
and will maintain such authorizations in full force and effect.

     (b)  Each Restricted Person will promptly furnish to Administrative Agent
all written notices of violation, orders, claims, citations, complaints, penalty
assessments, suits or other proceedings received by any Restricted Person or
General Partner, or of which it has notice, pending or threatened against any
Restricted Person, the potential liability of which exceeds $1,000,000 or would
cause a Material Adverse Change if resolved adversely against any Restricted
Person, by any governmental authority with respect to any alleged violation of
or non-compliance with any Environmental Laws or any permits, licenses or
authorizations in connection with its ownership or use of its properties or the
operation of its business.

     (c)  Each Restricted Person will promptly furnish to Administrative Agent
all requests for information, notices of claim, demand letters, and other
notifications, received by any Restricted Person or General Partner in
connection with its ownership or use of its properties or the conduct of its
business, relating to potential responsibility with respect to any investigation
or clean-up of Hazardous Material at any location, the potential liability of
which exceeds $1,000,000 or would cause a Material Adverse Change if resolved
adversely against any Restricted Person.

      Section 6.13.  Evidence of Compliance.  Subject to the last sentence of
Section 6.3, each Restricted Person will furnish to each Lender at such
Restricted Person's expense all evidence

                                       52

 
which Administrative Agent from time to time reasonably requests in writing as
to the accuracy and validity of or compliance with all representations,
warranties and covenants made by any Restricted Person in the Loan Documents,
the satisfaction of all conditions contained therein, and all other matters
pertaining thereto.

      Section 6.14.  Agreement to Deliver Security Documents.  Restricted
Persons will deliver to further secure the Obligations whenever requested by
Administrative Agent in its sole and absolute discretion, deeds of trust,
mortgages, chattel mortgages, security agreements, financing statements and
other Security Documents in form and substance satisfactory to Administrative
Agent for the purpose of granting, confirming, and perfecting first and prior
liens or security interests in any real or personal property now owned or
hereafter acquired by any Restricted Person.

      Section 6.15.  Perfection and Protection of Security Interests and Liens.
Each Restricted Person will from time to time deliver to Administrative Agent
any financing statements, continuation statements, extension agreements and
other documents, properly completed and executed (and acknowledged when
required) by Restricted Persons in form and substance satisfactory to
Administrative Agent, which Administrative Agent requests for the purpose of
perfecting, confirming, or protecting any Liens or other rights in Collateral
securing any Obligations.

      Section 6.16.  Bank Accounts; Offset.  To secure the repayment of the
Obligations each Restricted Person hereby grants to each Lender a security
interest, a lien, and a right of offset, each of which shall be in addition to
all other interests, liens, and rights of any Lender at common Law, under the
Loan Documents, or otherwise, and each of which shall be upon and against (a)
any and all moneys, securities or other property (and the proceeds therefrom) of
such Restricted Person now or hereafter held or received by or in transit to any
Lender from or for the account of such Restricted Person, whether for
safekeeping, custody, pledge, transmission, collection or otherwise, (b) any and
all deposits (general or special, time or demand, provisional or final) of such
Restricted Person with any Lender, and (c) any other credits and claims of such
Restricted Person at any time existing against any Lender, including claims
under certificates of deposit.  At any time and from time to time during the
continuance of any Event of Default, each Lender is hereby authorized to
foreclose upon, or to offset against the Obligations then due and payable (in
either case without notice to any Restricted Person), any and all items herein
above referred to. The remedies of foreclosure and offset are separate and
cumulative, and either may be exercised independently of the other without
regard to procedures or restrictions applicable to the other.

      Section 6.17.  Guaranties of Subsidiaries.  Each Subsidiary of Plains MLP
now existing or created, acquired or coming into existence after the date hereof
shall, promptly upon request by Administrative Agent, execute and deliver to
Administrative Agent an absolute and unconditional guaranty of the timely
repayment of the Obligations and the due and punctual performance of the
obligations of Borrower hereunder, which guaranty shall be satisfactory to
Administrative Agent in form and substance.  Each Subsidiary of Plains MLP
existing on the date hereof shall duly execute and deliver such a guaranty prior
to the making of any Loan hereunder.  Plains MLP will cause each of its
Subsidiaries to deliver to Administrative Agent, simultaneously with its
delivery of such a guaranty, written evidence satisfactory to Administrative
Agent and its counsel that such

                                       53

 
Subsidiary has taken all corporate or partnership action necessary to duly
approve and authorize its execution, delivery and performance of such guaranty
and any other documents which it is required to execute.

      Section 6.18.  Compliance with Agreements.  Each Restricted Person shall
observe, perform or comply with any agreement with any Person or any term or
condition of any instrument, if such agreement or instrument is materially
significant to such Restricted Person or to Restricted Persons on a Consolidated
basis or materially significant to any Guarantor, and such failure is not
remedied within the applicable period of grace (if any) provided in such
agreement or instrument.

      Section 6.19.  Year 2000.

     (a) Restricted Persons (i) no later than December 31, 1998 shall have
completed the analysis of the operations of Restricted Persons and their
Affiliates that could be adversely affected by failure to become Year 2000
compliant (that is, that computer applications, imbedded microchips and other
systems will be able to perform date-sensitive functions prior to and after
December 31, 1999) and developed a plan for Restricted Persons and their
Affiliates for becoming Year 2000 compliant in a timely manner, and (ii) shall
at all times after development of such plan implement such plan in all material
respects, in a timely manner, and in accordance with the schedule of such plan.
Contemporaneously with the delivery of each compliance certificate under Section
6.2 (a) or (b) on and after December 31, 1998, Each Restricted Person shall
certify that it reasonably believes that Restricted Persons and their Affiliates
will become Year 2000 compliant for their operations on a timely basis except to
the extent that a failure to do so could not reasonably be expected to cause a
Material Adverse Change.

     (b) Contemporaneously with the delivery of each compliance certificate
under Section 6.2 (a) or (b) on and after December 31, 1998, Plains MLP shall
certify that it reasonably believes any suppliers and vendors that are material
to the operations of Plains MLP or its Subsidiaries and Affiliates will be Year
2000 compliant for their own computer applications except to the extent that a
failure to do so could not reasonably be expected to cause a Material Adverse
Change.

      Section 6.20. Rents.  By the terms of the various Security Documents,
certain Restricted Persons are and will be assigning to Administrative Agent,
for the benefit of Lender Parties, all of the "Rents" (as defined therein)
accruing to the property covered thereby.  Notwithstanding any such assignments,
so long as no Default has occurred and is continuing, (i) such Restricted
Persons may continue to receive and collect from the payors of such Rents all
such Rents, subject, however, to the Liens created under the Security Documents,
which Liens are hereby affirmed and ratified, and free and clear of such Liens,
use the proceeds of the Rents, and (ii) the Administrative Agent will not notify
the obligors of such Rents or take any other action to cause proceeds thereof to
be remitted to the Administrative Agent. Upon the occurrence of a Default,
Administrative Agent may exercise all rights and remedies granted under the
Security Documents, including the right to obtain possession of all Rents then
held by such Restricted Persons or to receive directly from the payors of such
Rents all other Rents until such time as such Default is no longer continuing.
If the Administrative Agent shall receive any Rent proceeds from any payor at
any time other than during the continuance of a Default, then it shall notify
Borrower thereof and

                                       54

 
(i) upon request and pursuant to the instructions of Borrower, it shall, if no
Default is then continuing, remit such proceeds to the Borrower and (ii) at the
request and expense of Borrower, execute and deliver a letter to such payors
confirming Restricted Persons' right to receive and collect Rents until
otherwise notified by Administrative Agent. In no case shall any failure,
whether purposed or inadvertent, by Administrative Agent to collect directly any
such Rents constitute in any way a waiver, remission or release of any of its
rights under the Security Documents, nor shall any release of any Rents by
Administrative Agent to such Restricted Persons constitute a waiver, remission,
or release of any other Rents or of any rights of Administrative Agent to
collect other Rents thereafter.


                        ARTICLE VII - Negative Covenants

     To conform with the terms and conditions under which each Lender is willing
to have credit outstanding to Borrower, and to induce each Lender to enter into
this Agreement and make the Loans, Plains MLP and Borrower covenant and agree
that until the full and final payment of the Obligations and the termination of
this Agreement, unless Majority Lenders, or all Lenders as required under
Section 10.1, have previously agreed otherwise:

      Section 7.1.  Indebtedness.  No Restricted Person will in any manner owe
or be liable for Indebtedness except:

     (a)  the Obligations;

     (b)  Indebtedness arising under Hedging Contracts permitted under Section
7.3;

     (c)  Indebtedness of any Restricted Person owing to another Restricted
Person;

     (d)  Liabilities with respect to obligations to deliver crude oil or to
render terminaling or storage services in consideration for advance payments to
a Restricted Person provided such delivery or rendering, as applicable, is to be
made within 60 days after such payment;

     (e)  Indebtedness under the All American Agreement, provided that the
principal amount of loans and face amount of letters of credit thereunder at any
one time outstanding shall not exceed $225,000,000;

     (f) guaranties by Plains MLP of trade payables of any Restricted Person
incurred and paid in the ordinary course of business on ordinary trade terms;
and

     (g) other Indebtedness not to exceed in the aggregate in respect of all
Restricted Persons the principal amount of $25,000,000 at any one time
outstanding.


      Section 7.2.  Limitation on Liens.  No Restricted Person will create,
assume or permit to exist (i) any Lien upon any Collateral except (A) Permitted
Inventory Liens, (B) Liens created pursuant to the Security Documents, (C)
statutory Liens in respect of First Purchase Crude

                                       55

 
Payables, (D) Liens of the type described in clause (e) below in connection with
any Eligible Margin Deposit to secure Hedging Contracts permitted under Section
7.1 with the broker that is the holder of such Eligible Margin Deposit, and (E)
any other Liens expressly permitted to encumber such Collateral under any
Security Document covering such Collateral or (ii) any Lien upon any of the
properties or assets other than Collateral (except as provided in the preceding
clause (i)) which it now owns or hereafter acquires except the following (Liens,
to the extent permitted by this Section, herein called "Permitted Liens"):

     (a) Liens existing on the date of this Agreement and listed in the
Disclosure Schedule or Liens created pursuant to the All American Agreement,
subject to the terms of the Intercreditor Agreement referred to in Section
4.1(m);

     (b) Liens imposed by any governmental authority for taxes, assessments or
charges not yet due or the validity of which is being contested in good faith
and by appropriate proceedings, if necessary, for which adequate reserves are
maintained on the books of any Restricted Person  in accordance with GAAP;

     (c) pledges or deposits under worker's compensation, unemployment insurance
or other social security legislation;

     (d) carriers', warehousemen's, mechanics', materialmen's, repairmen's,
landlord's, or other like Liens (including, without limitation, Liens on
property in the possession of storage facilities, pipelines or barges) arising
in the ordinary course of business for amounts which are not more than 60 days
past due or the validity of which is being contested in good faith and by
appropriate proceedings, if necessary, and for which adequate reserves are
maintained on the books of any Restricted Person in accordance with GAAP;

     (e) Liens under or with respect to accounts with brokers or counterparties
with respect to Hedging Contracts consisting of cash, commodities or futures
contracts, options, securities, instruments, and other like assets securing only
Hedging Contracts permitted under Section 7.1;

     (f) deposits of cash or securities to secure the performance of bids, trade
contracts (other than for borrowed money), leases, statutory obligations, surety
and appeal bonds, performance bonds and other obligations of a like nature
incurred in the ordinary course of business;

     (g) easements, rights-of-way, restrictions and other similar encumbrances
incurred in the ordinary course of business and encumbrances consisting of
zoning restrictions, easements, licenses, restrictions on the use of real
property or minor imperfections in title thereto which, in the aggregate, are
not material in amount, and which do not in any case materially detract from the
value of the property subject thereto or interfere with the ordinary conduct of
the business of any Restricted Person;

     (h) Liens in respect of operating leases and Capital Leases permitted under
Section 7.1;

                                       56

 
     (i) Liens upon any property or assets acquired after the date hereof by a
Restricted Person, each of which either (i) existed on such property or asset
before the time of its acquisition and was not created in anticipation thereof,
or (ii) was created solely for the purpose of securing Indebtedness
representing, or incurred to finance, refinance or refund, the cost (including
the cost of construction) of such property or asset; provided that no such Lien
shall extend to or cover any property or asset of a Restricted Person other than
the property or asset so acquired (or constructed) and the Indebtedness secured
thereby is permitted under Section 7.1(g) hereof; and any extension, renewal,
refinancing, refunding or replacement (or successive extensions, renewals,
refinancings, refundings or replacements), in whole or part, of the foregoing,
provided, however, that such Liens shall not cover or secure any additional
Indebtedness, obligations, property or asset;

     (j) rights reserved to or vested in any governmental authority by the terms
of any right, power, franchise, grant, license or permit, or by any provision of
law, to revoke or terminate any such right, power, franchise, grant, license or
permit or to condemn or acquire by eminent domain or similar process;

     (k) rights reserved to or vested by Law in any governmental authority to in
any manner, control or regulate in any manner any of the properties of any
Restricted Person or the use thereof or the rights and interests of any
Restricted Person therein, in any manner under any and all Laws;

     (l) rights reserved to the grantors of any properties of any Restricted
Person, and the restrictions, conditions, restrictive covenants and limitations,
in respect thereto, pursuant to the terms, conditions and provisions of any
rights-of-way agreements, contracts or other agreements therewith; and

     (m) Inchoate Liens in respect of pending litigation or with respect to a
judgment which has not resulted in an Event of Default under Section 8.1.

      Section 7.3.  Hedging Contracts.  No Restricted Person will be a party to
or in any manner be liable on any Hedging Contract, except:

     (a) Hedging Contracts entered into by a Restricted Person with the purpose
and effect of fixing interest rates on a principal amount of indebtedness of
such Restricted Person that is accruing interest at a variable rate, provided
that (i) the aggregate notional amount of such contracts never exceeds one
hundred percent (100%) of the anticipated outstanding principal balance of the
indebtedness to be hedged by such contracts or an average of such principal
balances calculated using a generally accepted method of matching interest swap
contracts to declining principal balances, (ii) the floating rate index of each
such contract generally matches the index used to determine the floating rates
of interest on the corresponding indebtedness to be hedged by such contract and
(iii) each such contract is with a counterparty or has a guarantor of the
obligation of the counterparty who (unless such counterparty is a Lender or one
of its Affiliates) at the time the contract is made has long-term unsecured and
unenhanced debt obligations rated AA or Aa2 or better, respectively, by either
Rating Agency or is an investment grade-rated industry participant or otherwise
acceptable to Majority Lenders.

                                       57

 
     (b) Hedging Contracts entered into with the purpose and effect of fixing
prices on crude oil then owned by a Restricted Person or which a Restricted
Person is then obligated to purchase, provided that at all times: (i) no such
contract fixes a price for a term of more than twelve (12) months, except for
time trades in which the length of time between the purchase and sale contracts
shall not exceed thirty-six (36) months and further provided that such time
trades shall not exceed 30% of the Cushing Terminal's storage capacity; (ii)
with respect to crude oil constituting the linefill carried in the All American
Pipeline, the aggregate amount of oil so hedged at any one time does not exceed
500,000 barrels, (iii) with respect to crude oil owned by Restricted Persons
other than linefill carried in the All American Pipeline, the aggregate amount
of such other crude oil so hedged at any one time does not exceed the aggregate
Open Position at such time, (iv) such contract is entered into for the purpose
of hedging the price risk on oil anticipated to be disposed of and for which no
other fixed sale price or other price fixing arrangement exists, and (v) each
such contract is either (A) with a counterparty or has a guarantor of the
obligation of the counterparty who (unless such counterparty is a Lender Party
or one of its Affiliates) at the time the contract is made has long-term
unsecured and unenhanced debt obligations rated AA or Aa2 or better,
respectively, by either Rating Agency or (B) entered into on the New York
Mercantile Exchange ("Nymex") through a broker listed on the Disclosure Schedule
or otherwise approved by Majority Lenders; provided that if a Nymex position is
converted to a physical position by way of an "exchange for physicals" or an
"alternative delivery procedure" then such Restricted Person may extend credit
in connection with such physical position so long as such credit would comply
with the credit requirements of the definition of "Approved Eligible
Receivables."

      Section 7.4.  Limitation on Mergers, Issuances of Securities.  Except as
expressly provided in this section, no Restricted Person will (a) enter into any
transaction of merger or consolidation or amalgamation, or liquidate, wind up or
dissolve itself (or suffer any liquidation or dissolution), (b) acquire any
business or property from, or capital stock of, or be a party to any acquisition
of, any Person except for purchases of inventory and other property to be sold
or used in the ordinary course of business and Investments permitted under
Section 7.7 hereof or (c) sell, transfer, lease, exchange, alienate  or
otherwise dispose of, in one transaction or a series of transactions, any part
of its business or property, whether now owned or hereafter acquired, except for
sales or transfers not prohibited by under Section 7.5 hereof.   Any Person,
other than Borrower, that is a Subsidiary of a Restricted Person may, however,
be merged into or consolidated with (i) another Subsidiary of such Restricted
Person, so long as a Guarantor is the surviving business entity, or (ii such
Restricted Person, so long as such Restricted Person is the surviving business
entity.  Plains MLP will not issue any securities other than (i) limited
partnership interests and any options or warrants giving the holders thereof
only the right to acquire such interests, (ii) general or subordinate
partnership interests issued to Resources or a Wholly Owned Subsidiary of
Resources and (iii) debt securities permitted by Section 7.1(g).  No Subsidiary
of Plains MLP will issue any additional shares of its capital stock or other
securities or any options, warrants or other rights to acquire such additional
shares or other securities except a direct Subsidiary of a Restricted Person may
issue additional shares or other securities to such Restricted Person, to Plains
MLP or to General Partner so long as such Subsidiary is a Wholly Owned
Subsidiary of Plains MLP after giving effect thereto.  No Subsidiary of Borrower
which is a partnership will allow any diminution of Borrower's interest (direct
or indirect) therein.

                                       58

 
      Section 7.5.  Limitation on Sales of Property. No Restricted Person will
sell, transfer, lease, exchange, alienate or dispose of any Collateral or any of
its material assets or properties or any material interest therein except:

     (a) equipment which is worthless or obsolete or which is replaced by
equipment of equal suitability and value;

     (b) inventory (including pipeline linefill) which is sold in the ordinary
course of business on ordinary trade terms;

     (c) in other property which is sold for fair consideration not in the
aggregate in excess of $10,000,000 in any Fiscal Year, the sale of which will
not materially impair or diminish the value of the Collateral or any Restricted
Person's financial condition, business or operations; and

     (d) sales or transfers, subject to the Security Documents, by a Person
(other than Borrower) that is a Subsidiary of a Restricted Person to such
Restricted Person or to a Wholly Owned Subsidiary of such Restricted Person that
is a Guarantor.

No Restricted Person will sell, transfer or otherwise dispose of capital stock
of or interest in any of its Subsidiaries except to Plains MLP or a Wholly Owned
Subsidiary of Plains MLP.  No Restricted Person will discount, sell, pledge or
assign any notes payable to it, accounts receivable or future income.  So long
as no Default then exists, Administrative Agent will, at Borrower's request and
expense, execute a release, satisfactory to Borrower and Administrative Agent,
of any Collateral so sold, transferred, leased, exchanged, alienated or disposed
of pursuant to the clause (a) or (c) of this Section.

      Section 7.6.  Limitation on Dividends and Redemptions.  No Restricted
Person will declare or pay any dividends on, or make any other distribution in
respect of, any class of its capital stock or any partnership or other interest
in it, nor will any Restricted Person directly or indirectly make any capital
contribution to or purchase, redeem, acquire or retire any shares of the capital
stock of or partnership interests in any Restricted Person (whether such
interests are now or hereafter issued, outstanding or created), or cause or
permit any reduction or retirement of the capital stock of any Restricted
Person, while any Loan is outstanding. Notwithstanding the foregoing, but
subject to Section 7.5, (i) Subsidiaries of Plains MLP, Borrower, or of any
Guarantor shall not be restricted, directly or indirectly, from declaring and
paying dividends or making any other distributions to Plains MLP, Borrower, or
any such Guarantor, respectively,  (ii) no Restricted Person shall be restricted
from making capital contributions to a Wholly Owned Subsidiary of such
Restricted Person that is a Guarantor, and (iii) so long as no Default or Event
of Default has occurred and is continuing or would result therefrom, Plains MLP
shall not be restricted from (A) distributing Available Cash (other than amounts
required to be applied as otherwise required in any Loan Document) to its
partners in accordance with the Partnership Agreement or (B) purchasing its
partnership units on the open market in connection with the Incentive and Option
Plans.

      Section 7.7.  Limitation on Investments and New Businesses.  No Restricted
Person will (a) make any expenditure or commitment or incur any obligation or
enter into or engage in any

                                       59

 
transaction except in the ordinary course of business, (b) engage directly or
indirectly in any business or conduct any operations except in connection with
or incidental to its present businesses and operations, (c) make any
acquisitions of or capital contributions to or other Investments in any Person,
other than Permitted Investments and Permitted Acquisitions, or (d) make any
acquisitions of properties other than Permitted Acquisitions. All transactions
permitted under the foregoing subsections (a) through (d), inclusive, are
subject to Section 7.5.

      Section 7.8.  Limitation on Credit Extensions.  Except for Permitted
Investments and Hedging Contracts permitted under Section 7.3(b) hereof, no
Restricted Person will extend credit, make advances or make loans other than
normal and prudent extensions of credit to customers buying goods and services
in the ordinary course of business or to another Restricted Person in the
ordinary course of business, which extensions shall not be for longer periods
than those extended by similar businesses operated in a normal and prudent
manner.

      Section 7.9.  Transactions with Affiliates. No Restricted Person will
engage in any material transaction with any of its Affiliates except: (a)
transactions among Plains MLP and Wholly Owned Subsidiaries of Plains MLP,
subject to the other provisions of this Agreement, (b) transactions governed by
the Affiliate Agreements, and (c) transactions entered into in the ordinary
course of business of such Restricted Person on terms which are no less
favorable to such Restricted Person than those which would have been obtainable
at the time in arm's-length transactions with Persons other than such
Affiliates.

      Section 7.10.  Prohibited  Contracts.  Except as expressly provided for in
the Loan Documents and as described in the Disclosure Schedule, no Restricted
Person will, directly or indirectly, enter into, create, or otherwise allow to
exist any contract or other consensual restriction on the ability of any
Subsidiary of  Plains MLP, including but not limited to Borrower and any
Subsidiary of Borrower  to: (a) pay dividends or make other distributions to
Borrower or Plains MLP, (b) redeem equity interests held in it by Borrower or
Plains MLP, (c) repay loans and other indebtedness owing by it to Borrower or
Plains MLP, or (d) transfer any of its assets to Borrower or Plains MLP.  No
Restricted Person will enter into any "take-or-pay" contract or other contract
or arrangement for the purchase of goods or services which obligates it to pay
for such goods or service regardless of whether they are delivered or furnished
to it.  No Restricted Persons will amend, modify or release any of the Affiliate
Agreements.  No Restricted Person will amend or permit any amendment to any
contract or lease which releases, qualifies, limits, makes contingent or
otherwise detrimentally affects the rights and benefits of Administrative Agent
or any Lender under or acquired pursuant to any Security Documents.  No ERISA
Affiliate will incur any obligation to contribute to any "multiemployer plan" as
defined in Section 4001 of ERISA that is subject to Title IV of ERISA.

      Section 7.11.  Current Ratio.  The ratio of (i) the sum of Plains MLP's
Consolidated current assets plus the All American Revolver Availability to (ii)
Plains MLP's Consolidated current liabilities will never be less than 1.0 to
1.0.  For purposes of this section, Plains MLP's Consolidated current
liabilities will be calculated without including (a) any payments of principal
on the Notes which are required to be repaid within one year from the time of
calculation and (b) all Liabilities arising under permitted Hedging Contracts.

                                       60

 
      Section 7.12.  Debt Coverage Ratio.  At the end of any Fiscal Quarter, the
ratio of (a) Consolidated Funded Indebtedness to (b) Consolidated EBITDA for the
four Fiscal Quarter period ending with such Fiscal Quarter will not be greater
than 5.0 to 1.0.

      Section 7.13.  Interest Coverage Ratio.  At the end of any Fiscal Quarter,
the ratio of (a) Consolidated EBITDA to (b) Interest Expense for the four-Fiscal
Quarter period ending with such Fiscal Quarter will not be less than 3.0 to 1.0.

      Section 7.14.  Fixed Charge Coverage Ratio.  At the end of any Fiscal
Quarter, the ratio of (a) the sum of Consolidated EBITDA plus Consolidated Lease
Rentals to (b) the sum of Interest Expense plus Consolidated Lease Rentals plus
any principal payments due on any Indebtedness during the next four-Fiscal
Quarter period (exclusive of principal payments due on the Loans or on any
Indebtedness under the All American Credit Agreement) plus capital expenditure
required to maintain the assets and properties of the Restricted Persons in
accordance with the covenants contained in each Loan Document, in each case for
the four-Fiscal Quarter period ending with such Fiscal Quarter will not be less
than 1.25 to 1 for any such period.

      Section 7.15.  Debt to Capital Ratio.  The ratio of (a) all Consolidated
Funded Indebtedness to (b) the sum of Consolidated Funded Indebtedness plus
Consolidated Net Worth will never be greater than .60 to 1.0 at any time.

      Section 7.16.  Open Inventory Position.  Borrower shall not at any time
have an Open Position (exclusive of line fill carried in the All American
Pipeline) greater than 600,000 barrels.


                 ARTICLE VIII - Events of Default and Remedies

      Section 8.1.  Events of Default.  Each of the following events constitutes
an Event of Default under this Agreement:

     (a)  Any Restricted Person fails to pay the principal component of any Loan
or any reimbursement obligation with respect to any Letter of Credit when due
and payable, whether at a date for the payment of a fixed installment or as a
contingent or other payment becomes due and payable or as a result of
acceleration or otherwise;

     (b)  Any Restricted Person fails to pay any Obligation (other than the
Obligations in subsection (a) above) when due and payable, whether at a date for
the payment of a fixed installment or as a contingent or other payment becomes
due and payable or as a result of acceleration or otherwise, within three
Business Days after the same becomes due;

     (c)  Any event defined as a "default" or "event of default" in any Loan
Document occurs, and the same is not remedied within the applicable period of
grace (if any) provided in such Loan Document;

     (d)  Any Restricted Person fails to duly observe, perform or comply with
any covenant, agreement or provision of Section 6.4 or Article VII;

                                       61

 
     (e)  Any Restricted Person fails (other than as referred to in subsections
(a), (b), (c) or (d) above) to duly observe, perform or comply with any
covenant, agreement, condition or provision of any Loan Document to which it is
a party, and such failure remains unremedied for a period of thirty (30) days
after notice of such failure is given by Administrative Agent to Borrower;

     (f)  Any representation or warranty previously, presently or hereafter made
in writing by or on behalf of any Restricted Person in connection with any Loan
Document shall prove to have been false or incorrect in any material respect on
any date on or as of which made, or any Loan Document at any time ceases to be
valid, binding and enforceable as warranted in Section 5.5 for any reason other
than its release or subordination by Administrative Agent;

     (g) Any Restricted Person shall default in the payment when due of any
principal of or interest on any of its other Indebtedness in excess of
$2,500,000 in the aggregate (other than Indebtedness the validity of which is
being contested in good faith by appropriate proceedings and for which adequate
reserves with respect thereto are maintained on the books of such Restricted
Person in accordance with GAAP), or any event specified in any note, agreement,
indenture or other document evidencing or relating to any such Indebtedness
shall occur if the effect of such event is to cause, or (with the giving of any
notice or the lapse of time or both) to permit the holder or holders of such
Indebtedness (or a trustee or agent on behalf of such holder or holders) to
cause, such Indebtedness to become due, or to be prepaid in full (whether by
redemption, purchase, offer to purchase or otherwise), prior to its stated
maturity;

     (h)  Either (i) any "accumulated funding deficiency" (as defined in Section
412(a) of the Code) in excess of $500,000 exists with respect to any ERISA Plan,
whether or not waived by the Secretary of the Treasury or his delegate, or (ii
any Termination Event occurs with respect to any ERISA Plan and the then current
value of such ERISA Plan's benefit liabilities exceeds the then current value of
such ERISA Plan's assets available for the payment of such benefit liabilities
by more than $500,000 (or in the case of a Termination Event involving the
withdrawal of a substantial employer, the withdrawing employer's proportionate
share of such excess exceeds such amount);

     (i)  General Partner or any Restricted Person:

          (i)  has entered against it of a judgment, decree or order for relief
     by a Tribunal of competent jurisdiction in an involuntary proceeding
     commenced under any applicable bankruptcy, insolvency or other similar Law
     of any jurisdiction now or hereafter in effect, including the federal
     Bankruptcy Code, as from time to time amended, or has any such proceeding
     commenced against it, in each case, which remains undismissed for a period
     of sixty days; or

          (ii)  commences a voluntary case under any applicable bankruptcy,
     insolvency or similar Law now or hereafter in effect, including the federal
     Bankruptcy Code, as from time to time amended; or applies for or consents
     to the entry of an order for relief in an involuntary case under any such
     Law; or makes a general assignment for the benefit of creditors; or is
     generally unable to pay (or admits in writing its inability to so pay) its
     debts

                                       62

 
     as such debts become due; or takes corporate or other action to authorize
     any of the foregoing; or

          (iii) has entered against it the appointment of or taking possession
     by a receiver, liquidator, assignee, custodian, trustee, sequestrator or
     similar official of all or a substantial part of its assets in a proceeding
     brought against or initiated by it, and such appointment or taking
     possession is neither made ineffective nor discharged within sixty days
     after the making thereof, or such appointment or taking possession is at
     any time consented to, requested by, or acquiesced to by it; or

          (iv) has entered against it the appointment of or taking possession by
     a receiver, liquidator, assignee, custodian, trustee, sequestrator or
     similar official of  any part of the Collateral of a value in excess of
     $2,500,000 in a proceeding brought against or initiated by it, and such
     appointment or taking possession is neither made ineffective nor discharged
     within sixty days after the making thereof, or such appointment or taking
     possession is at any time consented to, requested by, or acquiesced to by
     it; or

          (v)  has entered against it a final judgment for the payment of money
     in excess of $2,500,000 (in each case not covered by insurance satisfactory
     to Administrative Agent in its discretion), unless the same is stayed or
     discharged within thirty days after the date of entry thereof or an appeal
     or appropriate proceeding for review thereof is taken within such period
     and a stay of execution pending such appeal is obtained; or

          (vi)  suffers a writ or warrant of attachment or any similar process
     to be issued by any Tribunal against all or any substantial part of its
     assets or any part of the Collateral of a value in excess of $2,500,000,
     and such writ or warrant of attachment or any similar process is not stayed
     or released within thirty days after the entry or levy thereof or after any
     stay is vacated or set aside;

     (j)  General Partner shall default in the payment when due of any principal
of or interest on any of its Indebtedness in excess of $1,000,000 in the
aggregate, or any event specified in any note, agreement, indenture or other
document evidencing or relating to any such Indebtedness shall occur if the
effect of such event is to cause, or (with the giving of any notice or the lapse
of time or both) to permit the holder or holders of such Indebtedness (or a
trustee or agent on behalf of such holder or holders) to cause, such
Indebtedness to become due, or to be prepaid in full (whether by redemption,
purchase, offer to purchase or otherwise), prior to its stated maturity;

     (k)  Any Change in Control occurs; or

     (l)  Any Material Market Open Position Loss occurs.

Upon the occurrence of an Event of Default described in subsection (i)(i),
(i)(ii) or (i)(iii) of this section with respect to Borrower or Plains MLP, all
of the Obligations shall thereupon be immediately due and payable, without
demand, presentment, notice of demand or of dishonor and nonpayment, protest,
notice of protest, notice of intention to accelerate, declaration or notice of
acceleration, or any other notice or declaration of any kind, all of which are
hereby expressly

                                       63

 
waived by Borrower and each Restricted Person who at any time ratifies or
approves this Agreement. Upon any such acceleration, any obligation of any
Lender to make any further Loans and any obligation of LC Issuer to issue
Letters of Credit hereunder shall be permanently terminated. During the
continuance of any other Event of Default, Administrative Agent at any time and
from time to time may (and upon written instructions from Majority Lenders,
Administrative Agent shall), without notice to Borrower or any other Restricted
Person, do either or both of the following: (1) terminate any obligation of
Lenders to make Loans hereunder and any obligation of LC Issuer to issue Letters
of Credit hereunder, and (2) declare any or all of the Obligations immediately
due and payable, and all such Obligations shall thereupon be immediately due and
payable, without demand, presentment, notice of demand or of dishonor and
nonpayment, protest, notice of protest, notice of intention to accelerate,
declaration or notice of acceleration, or any other notice or declaration of any
kind, all of which are hereby expressly waived by Borrower and each Restricted
Person who at any time ratifies or approves this Agreement.

      Section 8.2.  Remedies.  If any Default shall occur and be continuing,
each Lender Party may protect and enforce its rights under the Loan Documents by
any appropriate proceedings, including proceedings for specific performance of
any covenant or agreement contained in any Loan Document, and each Lender Party
may enforce the payment of any Obligations due it or enforce any other legal or
equitable right which it may have.  All rights, remedies and powers conferred
upon Lender Parties under the Loan Documents shall be deemed cumulative and not
exclusive of any other rights, remedies or powers available under the Loan
Documents or at Law or in equity.


                       ARTICLE IX - Administrative Agent

      Section 9.1.  Appointment and Authority.  Each Lender Party hereby
irrevocably authorizes Administrative Agent, and Administrative Agent hereby
undertakes, to receive payments of principal, interest and other amounts due
hereunder as specified herein and to take all other actions and to exercise such
powers under the Loan Documents as are specifically delegated to Administrative
Agent by the terms hereof or thereof, together with all other powers reasonably
incidental thereto.  The relationship of Administrative Agent to the other
Lender Parties is only that of one commercial lender acting as administrative
agent for others, and nothing in the Loan Documents shall be construed to
constitute Administrative Agent a trustee or other fiduciary for any Lender
Party or any holder of any participation in a Note nor to impose on
Administrative Agent duties and obligations other than those expressly provided
for in the Loan Documents. With respect to any matters not expressly provided
for in the Loan Documents and any matters which the Loan Documents place within
the discretion of Administrative Agent, Administrative Agent shall not be
required to exercise any discretion or take any action, and it may request
instructions from Lenders with respect to any such matter, in which case it
shall be required to act or to refrain from acting (and shall be fully protected
and free from liability to all Lender Parties in so acting or refraining from
acting) upon the instructions of Majority Lenders (including itself), provided,
however, that Administrative Agent shall not be required to take any action
which exposes it to a risk of personal liability that it considers unreasonable
or which is contrary to the Loan Documents or to applicable Law.  Upon receipt
by Administrative Agent from Borrower of

                                       64

 
any communication calling for action on the part of Lenders or upon notice from
Borrower or any Lender to Administrative Agent of any Default or Event of
Default, Administrative Agent shall promptly notify each other Lender thereof.

      Section 9.2.  Exculpation, Administrative Agent's Reliance, Etc.  Neither
Administrative Agent nor any of its directors, officers, agents, attorneys, or
employees shall be liable for any action taken or omitted to be taken by any of
them under or in connection with the Loan Documents, INCLUDING THEIR NEGLIGENCE
OF ANY KIND, except that each shall be liable for its own gross negligence or
willful misconduct.  Without limiting the generality of the foregoing,
Administrative Agent (a) may treat the payee of any Note as the holder thereof
until Administrative Agent receives written notice of the assignment or transfer
thereof in accordance with this Agreement, signed by such payee and in form
satisfactory to Administrative Agent; (b) may consult with legal counsel
(including counsel for Borrower), independent public accountants and other
experts selected by it and shall not be liable for any action taken or omitted
to be taken in good faith by it in accordance with the advice of such counsel,
accountants or experts; (c) makes no warranty or representation to any other
Lender Party and shall not be responsible to any other Lender Party for any
statements, warranties or representations made in or in connection with the Loan
Documents; (d) shall not have any duty to ascertain or to inquire as to the
performance or observance of any of the terms, covenants or conditions of the
Loan Documents on the part of any Restricted Person or to inspect the property
(including the books and records) of any Restricted Person; (e) shall not be
responsible to any other Lender Party for the due execution, legality, validity,
enforceability, genuineness, sufficiency or value of any Loan Document or any
instrument or document furnished in connection therewith; (f) may rely upon the
representations and warranties of each Restricted Person or Lender Party in
exercising its powers hereunder; and (g) shall incur no liability under or in
respect of the Loan Documents by acting upon any notice, consent, certificate or
other instrument or writing (including any facsimile, telegram, cable or telex)
believed by it to be genuine and signed or sent by the proper Person or Persons.

      Section 9.3.  Credit Decisions.  Each Lender Party acknowledges that it
has, independently and without reliance upon any other Lender Party, made its
own analysis of Borrower and the transactions contemplated hereby and its own
independent decision to enter into this Agreement and the other Loan Documents.
Each Lender Party also acknowledges that it will, independently and without
reliance upon any other Lender Party and based on such documents and information
as it shall deem appropriate at the time, continue to make its own credit
decisions in taking or not taking action under the Loan Documents.

      Section 9.4.  Indemnification.  EACH LENDER AGREES TO INDEMNIFY
ADMINISTRATIVE AGENT (TO THE EXTENT NOT REIMBURSED BY BORROWER WITHIN TEN (10)
DAYS AFTER DEMAND) FROM AND AGAINST SUCH LENDER'S PERCENTAGE SHARE OF ANY AND
ALL LIABILITIES, OBLIGATIONS, CLAIMS, LOSSES, DAMAGES, PENALTIES, FINES,
ACTIONS, JUDGMENTS, SUITS, SETTLEMENTS, COSTS, EXPENSES OR DISBURSEMENTS
(INCLUDING REASONABLE FEES OF ATTORNEYS, ACCOUNTANTS, EXPERTS AND ADVISORS) OF
ANY KIND OR NATURE WHATSOEVER (IN THIS SECTION COLLECTIVELY CALLED "LIABILITIES
AND COSTS") WHICH TO ANY EXTENT (IN WHOLE OR IN PART) MAY BE IMPOSED ON,
INCURRED BY, OR ASSERTED AGAINST ADMINISTRATIVE AGENT GROWING OUT OF, RESULTING
FROM OR IN ANY

                                       65

 
OTHER WAY ASSOCIATED WITH ANY OF THE COLLATERAL, THE LOAN DOCUMENTS AND THE
TRANSACTIONS AND EVENTS (INCLUDING THE ENFORCEMENT THEREOF) AT ANY TIME
ASSOCIATED THEREWITH OR CONTEMPLATED THEREIN (WHETHER ARISING IN CONTRACT OR IN
TORT OR OTHERWISE AND INCLUDING ANY VIOLATION OR NONCOMPLIANCE WITH ANY
ENVIRONMENTAL LAWS BY ANY PERSON OR ANY LIABILITIES OR DUTIES OF ANY PERSON WITH
RESPECT TO HAZARDOUS MATERIALS FOUND IN OR RELEASED INTO THE ENVIRONMENT).

THE FOREGOING INDEMNIFICATION SHALL APPLY WHETHER OR NOT SUCH LIABILITIES AND
COSTS ARE IN ANY WAY OR TO ANY EXTENT OWED, IN WHOLE OR IN PART, UNDER ANY CLAIM
OR THEORY OF STRICT LIABILITY OR CAUSED, IN WHOLE OR IN PART, BY ANY NEGLIGENT
ACT OR OMISSION OF ANY KIND BY ADMINISTRATIVE AGENT,

provided only that no Lender shall be obligated under this section to indemnify
Administrative Agent for that portion, if any, of any liabilities and costs
which is proximately caused by Administrative Agent's own individual gross
negligence or willful misconduct, as determined in a final judgment.  Cumulative
of the foregoing, each Lender agrees to reimburse Administrative Agent promptly
upon demand for such Lender's Percentage Share of any costs and expenses to be
paid to Administrative Agent by Borrower under Section 10.4(a) to the extent
that Administrative Agent is not timely reimbursed for such expenses by Borrower
as provided in such section.  As used in this section the term "Administrative
Agent" shall refer not only to the Person designated as such in Section 1.1 but
also to each director, officer, agent, attorney, employee, representative and
Affiliate of such Person.

      Section 9.5.  Rights as Lender.  In its capacity as a Lender,
Administrative Agent shall have the same rights and obligations as any Lender
and may exercise such rights as though it were not Administrative Agent.
Administrative Agent may accept deposits from, lend money to, act as trustee
under indentures of, and generally engage in any kind of business with any
Restricted Person or their Affiliates, all as if it were not Administrative
Agent hereunder and without any duty to account therefor to any other Lender.

      Section 9.6.  Sharing of Set-Offs and Other Payments.  Each Lender Party
agrees that if it shall, whether through the exercise of rights under Security
Documents or rights of banker's lien, set off, or counterclaim against Borrower
or otherwise, obtain payment of a portion of the aggregate Obligations owed to
it which, taking into account all distributions made by Administrative Agent
under Section 3.1, causes such Lender Party to have received more than it would
have received had such payment been received by Administrative Agent and
distributed pursuant to Section 3.1, then (a) it shall be deemed to have
simultaneously purchased and shall be obligated to purchase interests in the
Obligations as necessary to cause all Lender Parties to share all payments as
provided for in Section 3.1, and (b) such other adjustments shall be made from
time to time as shall be equitable to ensure that Administrative Agent and all
Lender Parties share all payments of Obligations as provided in Section 3.1;
provided, however, that nothing herein contained shall in any way affect the
right of any Lender Party to obtain payment (whether by exercise of rights of
banker's lien, set-off or counterclaim or otherwise) of indebtedness other than

                                       66

 
the Obligations.  Borrower expressly consents to the foregoing arrangements and
agrees that any holder of any such interest or other participation in the
Obligations, whether or not acquired pursuant to the foregoing arrangements, may
to the fullest extent permitted by Law and, subject to the provisions of Section
6.16, exercise any and all rights of banker's lien, set-off, or counterclaim as
fully as if such holder were a holder of the Obligations in the amount of such
interest or other participation.  If all or any part of any funds transferred
pursuant to this section is thereafter recovered from the seller under this
section which received the same, the purchase provided for in this section shall
be deemed to have been rescinded to the extent of such recovery, together with
interest, if any, if interest is required pursuant to the order of a Tribunal to
be paid on account of the possession of such funds prior to such recovery.

      Section 9.7.  Investments.  Whenever Administrative Agent in good faith
determines that it is uncertain about how to distribute to Lender Parties any
funds which it has received, or whenever Administrative Agent in good faith
determines that there is any dispute among Lender Parties about how such funds
should be distributed, Administrative Agent may choose to defer distribution of
the funds which are the subject of such uncertainty or dispute.  If
Administrative Agent in good faith believes that the uncertainty or dispute will
not be promptly resolved, or if Administrative Agent is otherwise required to
invest funds pending distribution to Lender Parties, Administrative Agent shall
invest such funds pending distribution; all interest on any such Investment
shall be distributed upon the distribution of such Investment and in the same
proportion and to the same Persons as such Investment.  All moneys received by
Administrative Agent for distribution to Lender Parties (other than to the
Person who is Administrative Agent in its separate capacity as a Lender Party)
shall be held by Administrative Agent pending such distribution solely as
Administrative Agent for such Lender Parties, and Administrative Agent shall
have no equitable title to any portion thereof.

      Section 9.8.  Benefit of Article IX.  The provisions of this Article are
intended solely for the benefit of Lender Parties, and no Restricted Person
shall be entitled to rely on any such provision or assert any such provision in
a claim or defense against any Lender (other than in relation to the reference
to Section 6.16 contained in Section 9.6 or the right to reasonably approve a
successor Administrative Agent under Section 9.9).  Lender Parties may waive or
amend such provisions as they desire without any notice to or consent of
Borrower or any other Restricted Person.

      Section 9.9.  Resignation.  Administrative Agent may resign at any time by
giving written notice thereof to Lenders and Borrower.  Each such notice shall
set forth the date of such resignation.  Upon any such resignation Majority
Lenders shall have the right to appoint a successor Administrative Agent,
subject to the approval of Borrower, which approval will not be unreasonably
withheld.  A successor must be appointed for any retiring Administrative Agent,
and such Administrative Agent's resignation shall become effective when such
successor accepts such appointment.  If, within thirty days after the date of
the retiring Administrative Agent's resignation, no successor Administrative
Agent has been appointed and has accepted such appointment, then the retiring
Administrative Agent may appoint a successor Administrative Agent, which shall
be a commercial bank organized or licensed to conduct a banking or trust
business under the Laws of the United States of America or of any state thereof.
Upon the acceptance of any appointment as Administrative Agent hereunder by a
successor Administrative

                                       67

 
Agent, the retiring Administrative Agent shall be discharged from its duties and
obligations under this Agreement and the other Loan Documents. After any
retiring Administrative Agent's resignation hereunder the provisions of this
Article IX shall continue to inure to its benefit as to any actions taken or
omitted to be taken by it while it was Administrative Agent under the Loan
Documents.

      Section 9.10.  Other Agents.  Neither the Syndication Agent nor the
Documentation Agent, in such capacities, shall have any duties or
responsibilities or incur any liabilities under this Agreement or the other Loan
Documents.


                           ARTICLE X - Miscellaneous

      Section 10.1.  Waivers and Amendments; Acknowledgments.

     (a)  Waivers and Amendments.  No failure or delay (whether by course of
conduct or otherwise) by any Lender in exercising any right, power or remedy
which such Lender Party may have under any of the Loan Documents shall operate
as a waiver thereof or of any other right, power or remedy, nor shall any single
or partial exercise by any Lender Party of any such right, power or remedy
preclude any other or further exercise thereof or of any other right, power or
remedy.  No waiver of any provision of any Loan Document and no consent to any
departure therefrom shall ever be effective unless it is in writing and signed
as provided below in this section, and then such waiver or consent shall be
effective only in the specific instances and for the purposes for which given
and to the extent specified in such writing.  No notice to or demand on any
Restricted Person shall in any case of itself entitle any Restricted Person to
any other or further notice or demand in similar or other circumstances.  This
Agreement and the other Loan Documents set forth the entire understanding
between the parties hereto with respect to the transactions contemplated herein
and therein and supersede all prior discussions and understandings with respect
to the subject matter hereof and thereof, and no waiver, consent, release,
modification or amendment of or supplement to this Agreement or the other Loan
Documents shall be valid or effective against any party hereto unless the same
is in writing and signed by (i) if such party is Borrower, by Borrower, (ii if
such party is Administrative Agent or LC Issuer, by such party, and (ii if such
party is a Lender, by such Lender or by Administrative Agent on behalf of
Lenders with the written consent of Majority Lenders (which consent has already
been given as to the termination of the Loan Documents as provided in Section
10.9). Notwithstanding the foregoing or anything to the contrary herein,
Administrative Agent shall not, without the prior consent of each individual
Lender, execute and deliver on behalf of such Lender any waiver or amendment
which would:  (1) waive any of the conditions specified in Article IV (provided
that Administrative Agent may in its discretion withdraw any request it has made
under Section 4.3(f)), (2) increase the Percentage Share of any such Lender or
the maximum amount any such Lender is committed to fund in respect of Letter of
Credit Obligations and Loans or subject such Lender to any additional
obligations, (3) reduce any fees payable to such Lender hereunder, or the
principal of, or interest on, such Lender's Note, (4) change any date fixed for
any payment of any such fees, principal or interest, (5) amend the definition
herein of "Borrowing Base" or any of the terms used in that definition, (6)
amend the definition herein of "Majority Lenders" or otherwise change the
aggregate amount of Percentage Shares which is required for

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Administrative Agent, Lenders or any of them to take any particular action under
the Loan Documents, (7) release Borrower from its obligation to pay such
Lender's Note or any Guarantor from its guaranty of such payment, or (8) release
any Collateral, except such releases relating to sales of property permitted
under Section 7.5.

     (b)  Acknowledgments and Admissions.  Borrower hereby represents, warrants,
acknowledges and admits that (i) it has been advised by counsel in the
negotiation, execution and delivery of the Loan Documents to which it is a
party, (ii it has made an independent decision to enter into this Agreement and
the other Loan Documents to which it is a party, without reliance on any
representation, warranty, covenant or undertaking by Administrative Agent or any
other Lender Party, whether written, oral or implicit, other than as expressly
set out in this Agreement or in another Loan Document delivered on or after the
date hereof, (ii there are no representations, warranties, covenants,
undertakings or agreements by any Lender Party as to the Loan Documents except
as expressly set out in this Agreement or in another Loan Document delivered on
or after the date hereof, (iv no Lender Party has any fiduciary obligation
toward Borrower with respect to any Loan Document or the transactions
contemplated thereby, (v) the relationship pursuant to the Loan Documents
between Borrower and the other Restricted Persons, on one hand, and each Lender
Party, on the other hand, is and shall be solely that of debtor and creditor,
respectively, (vi no partnership or joint venture exists with respect to the
Loan Documents between any Restricted Person and any Lender Party, (vi
Administrative Agent is not Borrower's Administrative Agent, but Administrative
Agent for Lenders, (vi should an Event of Default or Default occur or exist,
each Lender Party will determine in its sole discretion and for its own reasons
what remedies and actions it will or will not exercise or take at that time, (ix
without limiting any of the foregoing, Borrower is not relying upon any
representation or covenant by any Lender Party, or any representative thereof,
and no such representation or covenant has been made, that any Lender Party
will, at the time of an Event of Default or Default, or at any other time,
waive, negotiate, discuss, or take or refrain from taking any action permitted
under the Loan Documents with respect to any such Event of Default or Default or
any other provision of the Loan Documents, and (x) all Lender Parties have
relied upon the truthfulness of the acknowledgments in this section in deciding
to execute and deliver this Agreement and to become obligated hereunder.

     (c)  Representation by Lenders.  Each Lender hereby represents that it will
acquire its Note for its own account in the ordinary course of its commercial
lending business; however, the disposition of such Lender's property shall at
all times be and remain within its control and, in particular and without
limitation, such Lender may sell or otherwise transfer its Note, any
participation interest or other interest in its Note, or any of its other rights
and obligations under the Loan Documents subject to compliance with Sections
10.5(b) through (f), inclusive, and applicable Law.

     (d)  Joint Acknowledgment.  THIS WRITTEN AGREEMENT AND THE OTHER LOAN
DOCUMENTS REPRESENT THE FINAL AGREEMENT BETWEEN THE PARTIES AND MAY NOT BE
CONTRADICTED BY EVIDENCE OF PRIOR, CONTEMPORANEOUS, OR SUBSEQUENT ORAL
AGREEMENTS OF THE PARTIES.

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     THERE ARE NO UNWRITTEN ORAL AGREEMENTS BETWEEN THE PARTIES.

      Section 10.2.  Survival of Agreements; Cumulative Nature.  All of
Restricted Persons' various representations, warranties, covenants and
agreements in the Loan Documents shall survive the execution and delivery of
this Agreement and the other Loan Documents and the performance hereof and
thereof, including the making or granting  of the Loans and the  delivery of the
Notes and the other Loan Documents, and shall further survive until all of the
Obligations are paid in full to each Lender Party and all of Lender Parties'
obligations to Borrower are terminated.  All statements and agreements contained
in any certificate or other instrument delivered by any Restricted Person to any
Lender Party under any Loan Document shall be deemed representations and
warranties by Borrower or agreements and covenants of Borrower under this
Agreement.  The representations, warranties, indemnities, and covenants made by
Restricted Persons in the Loan Documents, and the rights, powers, and privileges
granted to Lender Parties in the Loan Documents, are cumulative, and, except for
expressly specified waivers and consents, no Loan Document shall be construed in
the context of another to diminish, nullify, or otherwise reduce the benefit to
any Lender Party of any such representation, warranty, indemnity, covenant,
right, power or privilege.  In particular and without limitation, no exception
set out in this Agreement to any representation, warranty, indemnity, or
covenant herein contained shall apply to any similar representation, warranty,
indemnity, or covenant contained in any other Loan Document, and each such
similar representation, warranty, indemnity, or covenant shall be subject only
to those exceptions which are expressly made applicable to it by the terms of
the various Loan Documents.

      Section 10.3.  Notices.  All notices, requests, consents, demands and
other communications required or permitted under any Loan Document shall be in
writing, unless otherwise specifically provided in such Loan Document (provided
that Administrative Agent may give telephonic notices to the other Lender
Parties), and shall be deemed sufficiently given or furnished if delivered by
personal delivery, by facsimile or other electronic transmission, by delivery
service with proof of delivery, or by registered or certified United States
mail, postage prepaid, to Borrower and Restricted Persons at the address of
Borrower specified on the signature pages hereto and to each Lender Party at its
address specified on the signature pages hereto (unless changed by similar
notice in writing given by the particular Person whose address is to be
changed).  Any such notice or communication shall be deemed to have been given
(a) in the case of personal delivery or delivery service, as of the date of
first attempted delivery during normal business hours at the address provided
herein, (b) in the case of facsimile or other electronic transmission, upon
receipt, or (c) in the case of registered or certified United States mail, three
days after deposit in the mail; provided, however, that no Borrowing Notice or
Continuation/Conversion Notice shall become effective until actually received by
Administrative Agent.

      Section 10.4.  Payment of Expenses; Indemnity.

     (a)  Payment of Expenses.  Whether or not the transactions contemplated by
this Agreement are consummated, Borrower will promptly (and in any event, within
30 days after any invoice or other statement or notice) pay: (i) all transfer,
stamp, mortgage, documentary or other similar taxes, assessments or charges
levied by any governmental or revenue authority in respect

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of this Agreement or any of the other Loan Documents or any other document
referred to herein or therein, (ii all reasonable costs and expenses incurred by
or on behalf of Administrative Agent (including attorneys' fees, consultants'
fees and engineering fees, travel costs and miscellaneous expenses) in
connection with (1) the negotiation, preparation, execution and delivery of the
Loan Documents, and any and all consents, waivers or other documents or
instruments relating thereto, (2) the filing, recording, refiling and re-
recording of any Loan Documents and any other documents or instruments or
further assurances required to be filed or recorded or refiled or re-recorded by
the terms of any Loan Document, (3) the borrowings hereunder and other action
reasonably required in the course of administration hereof, (4) monitoring or
confirming (or preparation or negotiation of any document related to) Borrower's
compliance with any covenants or conditions contained in this Agreement or in
any Loan Document, and (ii all reasonable costs and expenses incurred by or on
behalf of any Lender Party (including attorneys' fees, consultants' fees and
accounting fees) in connection with the defense or enforcement of any of the
Loan Documents (including this section) or the defense of any Lender Party's
exercise of its rights thereunder. In addition to the foregoing, until all
Obligations have been paid in full, Borrower will also pay or reimburse
Administrative Agent for all reasonable out-of-pocket costs and expenses of
Administrative Agent or its agents or employees in connection with the
continuing administration of the Loans and the related due diligence of
Administrative Agent, including travel and miscellaneous expenses and fees and
expenses of Administrative Agent's outside counsel, reserve engineers and
consultants engaged in connection with the Loan Documents.

     (b)  Indemnity.  Borrower agrees to indemnify each Lender Party, upon
demand, from and against any and all liabilities, obligations, claims, losses,
damages, penalties, fines, actions, judgments, suits, settlements, costs,
expenses or disbursements (including reasonable fees of attorneys, accountants,
experts and advisors) of any kind or nature whatsoever (in this section
collectively called "liabilities and costs") which to any extent (in whole or in
part) may be imposed on, incurred by, or asserted against such Lender Party
growing out of, resulting from or in any other way associated with any of the
Collateral, the Loan Documents and the transactions and events (including the
enforcement or defense thereof) at any time associated therewith or contemplated
therein whether arising in contract or in tort or otherwise and including any
violation or noncompliance with any Environmental Laws by any Lender Party or
any other Person or any liabilities or duties of any Lender Party or any other
Person with respect to Hazardous Materials found in or released into the
environment).

THE FOREGOING INDEMNIFICATION SHALL APPLY WHETHER OR NOT SUCH LIABILITIES AND
COSTS ARE IN ANY WAY OR TO ANY EXTENT OWED, IN WHOLE OR IN PART, UNDER ANY CLAIM
OR THEORY OF STRICT LIABILITY OR CAUSED, IN WHOLE OR IN PART, BY ANY NEGLIGENT
ACT OR OMISSION OF ANY KIND BY ANY LENDER PARTY,

provided only that no Lender Party shall be entitled under this section to
receive indemnification for that portion, if any, of any liabilities and costs
which is proximately caused by its own individual gross negligence or willful
misconduct, as determined in a final judgment.  If any Person (including
Borrower or any of its Affiliates) ever alleges such gross negligence or willful
misconduct by any Lender Party, the indemnification provided for in this section
shall nonetheless

                                       71

 
be paid upon demand, subject to later adjustment or reimbursement, until such
time as a court of competent jurisdiction enters a final judgment as to the
extent and effect of the alleged gross negligence or willful misconduct. As used
in this section the term "Lender Party" shall refer not only to each Person
designated as such in Section 1.1 but also to each director, officer, agent,
attorney, employee, representative and Affiliate of such Persons.

      Section 10.5.  Joint and Several Liability; Parties in Interest;
Assignments.

     (a)  All Obligations which are incurred by two or more Restricted Persons
shall be their joint and several obligations and liabilities.  All grants,
covenants and agreements contained in the Loan Documents shall bind and inure to
the benefit of the parties thereto and their respective successors and permitted
assigns; provided, however, that no Restricted Person may assign or transfer any
of its rights or delegate any of its duties or obligations under any Loan
Document without the prior consent of all Lenders.  Neither Borrower nor any
Affiliates of Borrower shall directly or indirectly purchase or otherwise retire
any Obligations owed to any Lender nor will any Lender accept any offer to do
so, unless each Lender shall have received substantially the same offer with
respect to the same Percentage Share of the Obligations owed to it.  If Borrower
or any Affiliate of Borrower at any time purchases some but less than all of the
Obligations owed to all Lender Parties, such purchaser shall not be entitled to
any rights of any Lender under the Loan Documents unless and until Borrower or
its Affiliates have purchased all of the Obligations.

     (b)  No Lender shall sell any participation interest in its commitment
hereunder or any of its rights under its Loans or under the Loan Documents to
any Person unless the agreement between such Lender and such participant at all
times provides: (i) that such participation exists only as a result of the
agreement between such participant and such Lender and that such transfer does
not give such participant any right to vote as a Lender or any other direct
claims or rights against any Person other than such Lender, (ii) that such
participant is not entitled to payment from any Restricted Person under Sections
3.2 through 3.6 of amounts in excess of those payable to such Lender under such
sections (determined without regard to the sale of such participation), and
(iii) unless such participant is an Affiliate of such Lender, that such
participant shall not be entitled to require such Lender to take any action
under any Loan Document or to obtain the consent of such participant prior to
taking any action under any Loan Document, except for actions which would
require the consent of all Lenders under subsection (a) of Section 10.1.  No
Lender selling such a participation shall, as between the other parties hereto
and such Lender, be relieved of any of its obligations hereunder as a result of
the sale of such participation.  Each Lender which sells any such participation
to any Person (other than an Affiliate of such Lender) shall give prompt notice
thereof to Administrative Agent and Borrower; provided, however, that no
liability shall arise if any Lender fails to give such notice to Borrower.

     (c)  Except for sales of participations under the immediately preceding
subsection, no Lender shall make any assignment or transfer of any kind of its
commitments or any of its rights under its Loans or under the Loan Documents,
except for assignments to an Eligible Transferee, or, subject to the provisions
of subsection (g) below, to an Affiliate and then only if such assignment is
made in accordance with the following requirements:

          (i)  Each such assignment shall apply to all Obligations owing to the
     assignor Lender hereunder and to the unused portion of the assignor
     Lender's commitments, so that after such assignment is made the assignor
     Lender shall have

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     a fixed (and not a varying) Percentage Share in its Loans and Note and be
     committed to make that Percentage Share of all future Loans, the assignee
     shall have a fixed Percentage Share in such Loans and Note and be committed
     to make that Percentage Share of all future Loans, and the Percentage Share
     of the Maximum Loan Amount of both the assignor and assignee shall equal or
     exceed $5,000,000.

          (ii) The parties to each such assignment shall execute and deliver to
     Administrative Agent, for its acceptance and recording in the "Register"
     (as defined below in this section), an Assignment and Acceptance in the
     form of Exhibit J, appropriately completed, together with the Note subject
     to such assignment and a processing fee payable by such assignor Lender
     (and not at Borrower's expense) to Administrative Agent of $3,500.  Upon
     such execution, delivery, and payment and upon the satisfaction of the
     conditions set out in such Assignment and Acceptance, then (i) Borrower
     shall issue new Notes to such assignor and assignee upon return of the old
     Notes to Borrower, and (ii) as of the "Settlement Date" specified in such
     Assignment and Acceptance the assignee thereunder shall be a party hereto
     and a Lender hereunder and Administrative Agent shall thereupon deliver to
     Borrower and each Lender a revised Schedule 1 hereto showing the revised
     Percentage Shares of such assignor Lender and such assignee Lender and the
     Percentage Shares of all other Lenders.

          (iii) Each assignee Lender which is not a United States person (as
     such term is defined in Section 7701(a)(30) of the Code) for Federal income
     tax purposes, shall (to the extent it has not already done so) provide
     Administrative Agent and Borrower with the "Prescribed Forms" referred to
     in Section 3.6(d).

     (d)  Nothing contained in this section shall prevent or prohibit any Lender
from assigning or pledging all or any portion of its Loans and Note to any
Federal Reserve Bank as collateral security pursuant to Regulation A of the
Board of Governors of the Federal Reserve System and any Operating Circular
issued by such Federal Reserve Bank; provided that (i) no such assignment or
pledge shall relieve such Lender from its obligations hereunder and (ii) all
related costs, fees and expenses incurred by such Lender in connection with such
assignment and the reassignment back to it, free of any interests of such
Federal Reserve Banks, shall be for the sole account of such Lender.

     (e)  By executing and delivering an Assignment and Acceptance, each
assignee Lender thereunder will be confirming to and agreeing with Borrower,
Administrative Agent and each other Lender Party that such assignee understands
and agrees to the terms hereof, including Article IX hereof.

     (f)  Administrative Agent shall maintain a copy of each Assignment and
Acceptance and a register for the recordation of the names and addresses of
Lenders and the Percentage Shares of, and principal amount of the Loans owing
to, each Lender from time to time (in this section called the "Register").  The
entries in the Register shall be conclusive, in the absence of manifest error,
and Borrower and each Lender Party may treat each Person whose name is recorded
in the Register as a Lender Party hereunder for all purposes.  The Register
shall be available for

                                       73

 
inspection by Borrower or any Lender Party at any reasonable time and from time
to time upon reasonable prior notice.

     (g)  Any Lender may assign or transfer its commitment or its rights under
its Loans or under the Loan Documents to (i) any Affiliate that is wholly-owned
direct or indirect subsidiary of such Lender or of any Person that wholly owns,
directly or indirectly, such Lender, or (ii) if such Lender is a fund that
invests in bank loans, any other fund that invests in bank loans and is advised
or managed by (A) the same investment advisor as any Lender or (B) any Affiliate
of such investment advisor that is a wholly-owned direct or indirect subsidiary
of any Person that wholly owns, directly or indirectly, such investment advisor,
subject to the following additional conditions:

     (x)  any right of such Lender assignor and such assignee to vote as a
     Lender, or any other direct claims or rights against any other Persons,
     shall be uniformly exercised or pursued in the manner that such Lender
     assignor would have so exercised such vote, claim or right if it had not
     made such assignment or transfer;

     (y)  such assignee shall not be entitled to payment from any Restricted
     Person under Sections 3.2 through 3.7 of amounts in excess of those payable
     to such Lender assignor under such sections (determined without regard to
     such assignment or transfer); and

     (z)  if such Lender assignor assigns or transfers to such assignee any of
     such Lender's commitment, such assignee may become primarily liable for
     such commitment, but such assignment or transfer shall not relieve or
     release such Lender from such commitment.

      Section 10.6.  Confidentiality.   Each Lender Party agrees (on behalf of
itself and each of its Affiliates, and each of its and their directors,
officers, agents, attorneys, employees, and representatives) that it (and each
of them) will take all reasonable steps to keep confidential any non-public
information supplied to it by or at the direction of any Restricted Person so
identified when delivered, provided, however, that this restriction shall not
apply to information which (a) has at the time in question entered the public
domain, (b) is required to be disclosed by Law (whether valid or invalid) of any
Tribunal, (c) is disclosed to any Lender Party's Affiliates, auditors,
attorneys, or agents, (d) is furnished to any other Lender Party or to any
purchaser or prospective purchaser of participations or other interests in any
Loan or Loan Document (provided each such purchaser or prospective purchaser
first agrees to hold such information in confidence on the terms provided in
this section), or (d) is disclosed in the course of enforcing its rights and
remedies during the existence of an Event of Default.

      Section 10.7.  Governing Law; Submission to Process.  EXCEPT TO THE EXTENT
THAT THE LAW OF ANOTHER JURISDICTION IS EXPRESSLY ELECTED IN A LOAN DOCUMENT,
THE LOAN DOCUMENTS SHALL BE DEEMED CONTRACTS AND INSTRUMENTS MADE UNDER THE LAWS
OF THE STATE OF NEW YORK AND SHALL BE CONSTRUED AND ENFORCED IN ACCORDANCE WITH
AND GOVERNED BY THE LAWS OF THE STATE OF NEW YORK AND THE LAWS OF THE UNITED
STATES OF AMERICA, WITHOUT REGARD TO PRINCIPLES OF CONFLICTS OF LAW.  BORROWER
HEREBY AGREES THAT ANY LEGAL ACTION OR PROCEEDING AGAINST BORROWER WITH RESPECT
TO THIS AGREEMENT, THE NOTES OR ANY OF THE LOAN

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DOCUMENTS MAY BE BROUGHT IN THE COURTS OF THE STATE OF NEW YORK OR OF THE UNITED
STATES OF AMERICA FOR THE SOUTHERN DISTRICT OF NEW YORK AS LENDER PARTIES MAY
ELECT, AND, BY EXECUTION AND DELIVERY HEREOF, BORROWER ACCEPTS AND CONSENTS FOR
ITSELF AND IN RESPECT TO ITS PROPERTY, GENERALLY AND UNCONDITIONALLY, THE NON-
EXCLUSIVE JURISDICTION OF THE AFORESAID COURTS. BORROWER AGREES THAT SECTIONS 
5-1401 AND 5-1402 OF THE GENERAL OBLIGATIONS LAW OF THE STATE OF NEW YORK SHALL
APPLY TO THE LOAN DOCUMENTS AND WAIVES ANY RIGHT TO STAY OR TO DISMISS ANY
ACTION OR PROCEEDING BROUGHT BEFORE SAID COURTS ON THE BASIS OF FORUM NON
CONVENIENS. IN FURTHERANCE OF THE FOREGOING, BORROWER HEREBY IRREVOCABLY
DESIGNATES AND APPOINTS CORPORATION SERVICE COMPANY, 80 STATE STREET, ALBANY,
NEW YORK 12207, AS AGENT OF BORROWER TO RECEIVE SERVICE OF ALL PROCESS BROUGHT
AGAINST BORROWER WITH RESPECT TO ANY SUCH PROCEEDING IN ANY SUCH COURT IN NEW
YORK, SUCH SERVICE BEING HEREBY ACKNOWLEDGED BY BORROWER TO BE EFFECTIVE AND
BINDING SERVICE IN EVERY RESPECT. COPIES OF ANY SUCH PROCESS SO SERVED SHALL
ALSO, IF PERMITTED BY LAW, BE SENT BY REGISTERED MAIL TO BORROWER AT ITS ADDRESS
SET FORTH BELOW, BUT THE FAILURE OF BORROWER TO RECEIVE SUCH COPIES SHALL NOT
AFFECT IN ANY WAY THE SERVICE OF SUCH PROCESS AS AFORESAID. BORROWER SHALL
FURNISH TO LENDER PARTIES A CONSENT OF CORPORATION SERVICE COMPANY AGREEING TO
ACT HEREUNDER PRIOR TO THE EFFECTIVE DATE OF THIS AGREEMENT. NOTHING HEREIN
SHALL AFFECT THE RIGHT OF LENDER PARTIES TO SERVE PROCESS IN ANY OTHER MANNER
PERMITTED BY LAW OR SHALL LIMIT THE RIGHT OF LENDER PARTIES TO BRING PROCEEDINGS
AGAINST BORROWER IN THE COURTS OF ANY OTHER JURISDICTION. IF FOR ANY REASON
CORPORATION SERVICE COMPANY SHALL RESIGN OR OTHERWISE CEASE TO ACT AS BORROWER'S
AGENT, BORROWER HEREBY IRREVOCABLY AGREES TO (A) IMMEDIATELY DESIGNATE AND
APPOINT A NEW AGENT ACCEPTABLE TO ADMINISTRATIVE AGENT TO SERVE IN SUCH CAPACITY
AND, IN SUCH EVENT, SUCH NEW AGENT SHALL BE DEEMED TO BE SUBSTITUTED FOR
CORPORATION SERVICE COMPANY FOR ALL PURPOSES HEREOF AND (B) PROMPTLY DELIVER TO
AGENT THE WRITTEN CONSENT (IN FORM AND SUBSTANCE SATISFACTORY TO ADMINISTRATIVE
AGENT) OF SUCH NEW AGENT AGREEING TO SERVE IN SUCH CAPACITY.

      Section 10.8.  Limitation on Interest.  Lender Parties, Restricted Persons
and the other parties to the Loan Documents intend to contract in strict
compliance with applicable usury Law from time to time in effect.  In
furtherance thereof such persons stipulate and agree that none of the terms and
provisions contained in the Loan Documents shall ever be construed to provide
for interest in excess of the maximum amount of interest permitted to be charged
by applicable Law from time to time in effect.  Neither any Restricted Person
nor any present or future guarantors, endorsers, or other Persons hereafter
becoming liable for payment of any Obligation shall ever be liable for unearned
interest thereon or shall ever be required to pay interest thereon in excess of
the maximum amount that may be lawfully charged under applicable Law from time
to time in effect, and the provisions of this section shall control over all
other provisions of the Loan Documents which may be in conflict or apparent
conflict herewith.

      Section 10.9.  Termination; Limited Survival.  In its sole and absolute
discretion Borrower may at any time that no Obligations are owing or outstanding
elect in a written notice delivered to Administrative Agent to terminate this
Agreement.  Upon receipt by Administrative Agent of such

                                       75

 
a notice, if no Obligations are then owing or outstanding this Agreement and all
other Loan Documents shall thereupon be terminated and the parties thereto
released from all prospective obligations thereunder. Notwithstanding the
foregoing or anything herein to the contrary, any waivers or admissions made by
any Restricted Person in any Loan Document, any Obligations under Sections 3.2
through 3.6, and any obligations which any Person may have to indemnify or
compensate any Lender Party shall survive any termination of this Agreement or
any other Loan Document. At the request and expense of Borrower, Administrative
Agent shall prepare and execute all necessary instruments to reflect and effect
such termination of the Loan Documents. Administrative Agent is hereby
authorized to execute all such instruments on behalf of all Lenders, without the
joinder of or further action by any Lender.

      Section 10.10.  Severability.  If any term or provision of any Loan
Document shall be determined to be illegal or unenforceable all other terms and
provisions of the Loan Documents shall nevertheless remain effective and shall
be enforced to the fullest extent permitted by applicable Law.

      Section 10.11.  Counterparts.  This Agreement may be separately executed
in any number of counterparts and by different parties hereto in separate
counterparts, each of which when so executed shall be deemed to constitute one
and the same Agreement.

      Section 10.12.  Waiver of Jury Trial, Punitive Damages, etc.  TO THE
EXTENT PERMITTED BY LAW, LENDER PARTIES AND BORROWER HEREBY KNOWINGLY,
VOLUNTARILY, AND INTENTIONALLY WAIVE ANY RIGHTS THEY MAY HAVE TO A TRIAL BY JURY
IN RESPECT OF ANY LITIGATION BASED HEREON, OR DIRECTLY OR INDIRECTLY ARISING OUT
OF, UNDER, OR IN CONNECTION WITH, THIS AGREEMENT OR ANY OTHER LOAN DOCUMENT, OR
ANY COURSE OF CONDUCT, COURSE OF DEALING, STATEMENTS (WHETHER VERBAL OR WRITTEN)
OR ACTIONS OF SUCH PERSONS OR BORROWER.  THIS PROVISION IS A MATERIAL INDUCEMENT
FOR LENDER PARTIES' ENTERING INTO THIS AGREEMENT AND THE OTHER LOAN DOCUMENTS.
BORROWER AND EACH LENDER PARTY HEREBY FURTHER (A) IRREVOCABLY WAIVES, TO THE
MAXIMUM EXTENT NOT PROHIBITED BY LAW, ANY RIGHT IT MAY HAVE TO CLAIM OR RECOVER
IN ANY SUCH LITIGATION ANY "SPECIAL DAMAGES," AS DEFINED BELOW, (B) CERTIFIES
THAT NO PARTY HERETO NOR ANY REPRESENTATIVE OR AGENT OR COUNSEL FOR ANY PARTY
HERETO HAS REPRESENTED, EXPRESSLY OR OTHERWISE, OR IMPLIED THAT SUCH PARTY WOULD
NOT, IN THE EVENT OF LITIGATION, SEEK TO ENFORCE THE FOREGOING WAIVERS, AND (C)
ACKNOWLEDGES THAT IT HAS BEEN INDUCED TO ENTER INTO THIS AGREEMENT, THE OTHER
LOAN DOCUMENTS AND THE TRANSACTIONS CONTEMPLATED HEREBY AND THEREBY BY, AMONG
OTHER THINGS, THE MUTUAL WAIVERS AND CERTIFICATIONS CONTAINED IN THIS SECTION.
AS USED IN THIS SECTION, "SPECIAL DAMAGES" INCLUDES ALL SPECIAL, CONSEQUENTIAL,
EXEMPLARY, OR PUNITIVE DAMAGES (REGARDLESS OF HOW NAMED), BUT DOES NOT INCLUDE
ANY PAYMENTS OR FUNDS WHICH ANY PARTY HERETO HAS EXPRESSLY PROMISED TO PAY OR
DELIVER TO ANY OTHER PARTY HERETO.

      Section 10.13.  Amendment and Restatement.  Upon satisfaction with each of
the conditions set forth in Sections 4.1 and 4.2 (except any condition the
performance of which has been waived as a condition to the initial Loan or
initial issuance of a Letter of Credit pursuant to

                                       76

 
this Agreement), this Agreement shall be deemed to amend and restate in its
entirety the Existing Agreement, at which time (the "Effective Time") each
Lender and each Restricted Person hereby agrees that (i) the Percentage Share of
each Lender shall be as set forth in the definition to this Agreement, (ii) the
Loans outstanding under the Existing Agreement and all accrued and unpaid
interest thereon, all letters of credit issued and outstanding under the
Existing Agreement and reimbursement obligations with respect thereto, and all
accrued and unpaid fees and expenses under the Existing Agreement (the
"Outstanding Obligations") shall be deemed to be outstanding under and governed
by this Agreement, and (iii) any party named as a "Lender" under the Existing
Agreement that is not a signatory hereto as a Lender under this Agreement (an
"Exiting Lender") shall cease to be a Lender and shall be released from its
obligations under the Existing Agreement and this Agreement. At the Effective
Time, the Borrower shall make such adjustments in the Loans, including the
borrowing of additional Loans and the repayment of Loans under the Existing
Agreement plus all applicable accrued interest, fees and expenses (including any
costs under Article III of the Existing Agreement) as shall be necessary to
repay in full all Exiting Lenders and to provide for Loans by each Lender in the
amount of its new Percentage Share of all Loans as of the Effective Time. At the
Effective Time the liability of Resources in respect to the Outstanding
Obligations (including any liability of Resources under its Guaranty thereof and
the liability of PMTI under the Existing Agreement, Notes or other Loan
Documents, as defined in the Existing Agreement, and the liability of PLX Crude
Lines Inc. and Plains Terminal & Transfer Corporation under their Guaranties
which had been assumed by Resources), and any Lien securing such Outstanding
Obligations upon any assets or properties of Resources retained by Resources
after giving effect to the Contribution Agreement, shall be terminated and
released in full. At Resources expense, each Lender and Administrative Agent
agrees to execute such documents and file such releases as Resources shall
reasonable request to further memorialize the foregoing.

                                       77

 
     IN WITNESS WHEREOF, this Agreement is executed as of the date first written
above.

                                    PLAINS MARKETING, L.P., Borrower

                                    By:  PLAINS ALL AMERICAN INC., its general
                                         partner



                                         By: /s/ Phillip D. Kramer
                                            ----------------------
                                               Name: Phillip D. Kramer
                                               Title: Executive Vice President

                                    Address:

                                    500 Dallas Street
                                    Suite 700
                                    Houston, Texas 77002
                                    Attention: Phil Kramer

                                    Telephone: (713) 654-1414
                                    Fax: (713) 654-1523


                                    PLAINS ALL AMERICAN PIPELINE, L.P.

                                    By:  PLAINS ALL AMERICAN INC., its general
                                         partner



                                         By:/s/ Phillip D. Kramer
                                            ---------------------
                                               Name: Phillip D. Kramer
                                               Title: Executive Vice President

                                    Address:

                                    500 Dallas Street
                                    Suite 700
                                    Houston, Texas 77002
                                    Attention: Phil Kramer

                                    Telephone: (713) 654-1414
                                    Fax: (713) 654-1523

                                       78

 
                                    ALL AMERICAN PIPELINE, L.P.

                                    By:  PLAINS ALL AMERICAN INC., its general
                                         partner



                                         By:/s/ Phillip D. Kramer
                                            ---------------------
                                               Name: Phillip D. Kramer
                                               Title: Executive Vice President

                                    Address:

                                    500 Dallas Street
                                    Suite 700
                                    Houston, Texas 77002
                                    Attention: Phil Kramer

                                    Telephone: (713) 654-1414
                                    Fax: (713) 654-1523


                                    BANKBOSTON, N.A.,
                                    Administrative Agent,
                                    LC Issuer and Lender


                                    By: /s/ Terrence Ronan
                                       -------------------
                                         Name: Terrence Ronan
                                         Title:   Director

                                    Address:
 
                                    100 Federal Street
                                    Boston, Massachusetts 02110
                                    Attention: Terrence Ronan
                                    Mail Code: 01-08-04

                                    Telephone: (617) 434-5472
                                    Fax: (617) 434-3652

                                       79

 
                                    BANCBOSTON ROBERTSON STEPHENS INC.,
                                    Syndication Agent


                                    By: /s/ John R. Barlow
                                       -------------------
                                         Name: John R. Barlow
                                         Title:   Director

                                    Address:
 
                                    100 Federal Street
                                    Boston, Massachusetts 02110
                                    Attention: Richard Makin
                                    Mail Code: 01-11-04

                                    Telephone: (617) 434-7381
                                    Fax: (617) 434-0382


                                    ING BARING FURMAN SELZ, LLC,
                                    Documentation Agent


                                    By: /s/ Christopher R. Wagner
                                       --------------------------
                                         Name: Christopher R. Wagner
                                         Title:   Senior Vice President

                                    Address:
 
                                    135 East 57th Street
                                    New York, New York 10022
                                    Attention:

                                    Telephone: (212)
                                    Fax: (212)

                                       80

 
                                    ING (U.S.) CAPITAL CORPORATION, Lender


                                    By: /s/ Christopher R. Wagner
                                       --------------------------
                                         Name: Christopher R. Wagner
                                         Title:   Senior Vice President

                                    Address:
 
                                    135 East 57th Street
                                    New York, New York 10022
                                    Attention:

                                    Telephone: (212)
                                    Fax: (212)

                                       81

 
                                    BANK OF AMERICA NATIONAL TRUST
                                    AND SAVINGS ASSOCIATION


                                    By:   /s/   Leonard Russo
                                       ----------------------
                                         Name: Leonard Russo
                                         Title:   Managing Director

                                    Address:

                                    333 Clay St., Suite 4550
                                    Houston, Texas 77002
                                    Attention: Irene Rummel

                                    Telephone: (713) 651-4921
                                    Fax: (713) 651-4921

                                       82

 
                                    BANK OF SCOTLAND


                                    By:   /s/ Annie Chin Tat
                                       ---------------------
                                         Name: Annie Chin Tat
                                         Title:

                                    Address:

                                    565 Fifth Avenue
                                    New York, New York 10017
                                    Attention: Annie Chin Tat

                                    Telephone: (212) 450-0871
                                    Fax: (212) 557-9460

                                    With Copy to:

                                    1200 Smith Street
                                    Houston, Texas 77002
                                    Attention: Richard C. Butler

                                    Telephone: (713) 651-1870
                                    Fax: (713) 651-9714

                                       83

 
                                    DEN NORSKE BANK ASA


                                    By: /s/ J. Morten Kreutz
                                       ---------------------
                                         Name: J. Morten Kreutz
                                         Title:   Vice President


                                    By: /s/ William V. Moyer
                                       ---------------------
                                         Name: William V. Moyer
                                         Title:   Senior Vice President

                                    Address:

                                    Three Allen Center
                                    333 Clay Street, Suite 4890
                                    Houston, Texas 77002
                                    Attention: Byron L. Cooley

                                    Telephone: (713) 844-9258
                                    Fax: (713) 757-1167

                                       84

 
                                    COMERICA BANK - TEXAS


                                    By: /s/ Daniel P. Tralmer
                                       ----------------------
                                         Name: Daniel P. Tralmer
                                         Title:   Vice President


                                    Address:

                                    910 Louisiana, Suite 410
                                    Houston, Texas 77002
                                    Attention: Jim Kimble

                                    Telephone: (713) 220-5614
                                    Fax: (713) 220-5650

                                       85

 
                                    HIBERNIA NATIONAL BANK


                                    By: /s/ Tammy Angelety
                                       --------------------
                                         Name: Tammy Angelety
                                         Title: Assistant Vice President

                                    Address:

                                    313 Carondelet Street
                                    New Orleans, Louisiana 70130
                                    Attention: Tammy Angelety

                                    Telephone: (504) 533-2045
                                    Fax: (504) 533-5434

                                       86

 
                                    MEESPIERSON CAPITAL CORP.


                                    By: /s/ Deirdre M. Sanborn
                                       -----------------------
                                    Name: Deirdre M. Sanborn
                                    Title:   Assistant Vice President


                                    By: /s/ Darrell W. Holley
                                       ----------------------
                                    Name: Darrell W. Holley
                                    Title:   Senior Vice President

                                    Address:

                                    300 Crescent Court, Suite 1750
                                    Dallas, Texas 75201
                                    Attention: Darrell W. Holley

                                    Telephone: (214) 953-9307
                                    Fax: (214) 754-5981

                                       87

 
                                    U.S. BANK NATIONAL ASSOCIATION


                                    By:   /s/ Monte E. Deckerd
                                       -----------------------
                                         Name: Monte E. Deckerd
                                         Title:   Vice President

                                    Address:

                                    918 17TH Street
                                    Denver, Colorado 80202
                                    Attention: Monte E. Deckerd

                                    Telephone: (303) 585-4212
                                    Fax: (303) 585-4362

                                       88

 
                                    FIRST UNION NATIONAL BANK


                                    By:   /s/ Robert R. Wetteroff
                                       --------------------------
                                         Name: Robert R. Wetteroff
                                         Title:   Senior Vice President

                                    Address:

                                    1001 Fannin, Suite 2255
                                    Houston, Texas 77002
                                    Attention: David Humphreys

                                    Telephone: (713) 650-9843
                                    Fax: (713) 650-6354


 

                                       89