EXHIBIT 3.3



                              AMENDED AND RESTATED



                        AGREEMENT OF LIMITED PARTNERSHIP



                                       OF



                          ALL AMERICAN PIPELINE, L.P.




                                                     All American Pipeline, L.P.

 
                               TABLE OF CONTENTS
                                                                        
                                                                       

                                   ARTICLE I
                                  DEFINITIONS

Section 1.1   Definitions                                                     1
Section 1.2   Construction                                                   12


                                  ARTICLE II
                                 ORGANIZATION

Section 2.1   Formation                                                      13
Section 2.2   Name                                                           13
Section 2.3   Registered Office; Registered Agent; Principal Office; Other 
               Offices                                                       13
Section 2.4   Purpose and Business                                           14
Section 2.5   Powers                                                         14
Section 2.6   Power of Attorney                                              14
Section 2.7   Term                                                           16
Section 2.8   Title to Partnership Assets                                    16


                                  ARTICLE III
                          RIGHTS OF LIMITED PARTNERS

Section 3.1   Limitation of Liability                                        17
Section 3.2   Management of Business                                         17
Section 3.3   Outside Activities of the Limited Partners                     17
Section 3.4   Rights of Limited Partners                                     17


                                  ARTICLE IV
                      TRANSFERS OF PARTNERSHIP INTERESTS

Section 4.1   Transfer Generally                                             18
Section 4.2   Transfer of General Partner's Partnership Interest             19
Section 4.3   Transfer of a Limited Partner's Partnership Interest           19
Section 4.4   Restrictions on Transfers                                      19
 

                                                     All American Pipeline, L.P.

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                                   ARTICLE V
          CAPITAL CONTRIBUTIONS AND ISSUANCE OF PARTNERSHIP INTERESTS

Section 5.1   Initial Contributions                                          20
Section 5.2   Contributions Pursuant to the Contribution and Conveyance 
               Agreement                                                     20
Section 5.3   Additional Capital Contributions                               21
Section 5.4   Interest and Withdrawal                                        21
Section 5.5   Capital Accounts                                               21
Section 5.6   Loans from Partners                                            24
Section 5.7   Limited Preemptive Rights                                      24
Section 5.8   Fully Paid and Non-Assessable Nature of Partnership Interests  25
 

                                  ARTICLE VI
                         ALLOCATIONS AND DISTRIBUTIONS

Section 6.1   Allocations for Capital Account Purposes                       25
Section 6.2   Allocations for Tax Purposes                                   29
Section 6.3   Distributions                                                  31


                                  ARTICLE VII
                     MANAGEMENT AND OPERATION OF BUSINESS

Section 7.1   Management                                                     32
Section 7.2   Certificate of Limited Partnership                             34
Section 7.3   Restrictions on General Partner's Authority                    34
Section 7.4   Reimbursement of the General Partner                           35
Section 7.5   Outside Activities                                             36
Section 7.6   Loans from the General Partner; Loans or Contributions 
              from the Partnership; Contracts with Affiliates; Certain
              Restrictions on the General Partner                            37
Section 7.7   Indemnification                                                39
Section 7.8   Liability of Indemnitees                                       41
Section 7.9   Resolution of Conflicts of Interest                            41
Section 7.10  Other Matters Concerning the General Partner                   43
Section 7.11  Reliance by Third Parties                                      44


                                 ARTICLE VIII
                    BOOKS, RECORDS, ACCOUNTING AND REPORTS

Section 8.1   Records and Accounting                                         44
Section 8.2   Fiscal Year                                                    45
 

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                                  ARTICLE IX
                                  TAX MATTERS

Section 9.1   Tax Returns and Information                                    45
Section 9.2   Tax Elections                                                  45
Section 9.3   Tax Controversies                                              45
Section 9.4   Withholding                                                    46


                                   ARTICLE X
                             ADMISSION OF PARTNERS

Section 10.1  Admission of Partners                                          46
Section 10.2  Admission of Substituted Limited Partner                       46
Section 10.3  Admission of Additional Limited Partners                       47
Section 10.4  Admission of Successor or Transferee General Partner           47
Section 10.5  Amendment of Agreement and Certificate of Limited Partnership  48


                                  ARTICLE XI
                       WITHDRAWAL OR REMOVAL OF PARTNERS

Section 11.1  Withdrawal of the General Partner                              48
Section 11.2  Removal of the General Partner                                 50
Section 11.3  Interest of Departing Partner                                  50
Section 11.4  Withdrawal of a Limited Partner                                50


                                  ARTICLE XII
                          DISSOLUTION AND LIQUIDATION

Section 12.1  Dissolution                                                    51
Section 12.2  Continuation of the Business of the Partnership After 
               Dissolution                                                   51
Section 12.3  Liquidator                                                     52
Section 12.4  Liquidation                                                    53
Section 12.5  Cancellation of Certificate of Limited Partnership             54
Section 12.6  Return of Contributions                                        54
Section 12.7  Waiver of Partition                                            54
Section 12.8  Capital Account Restoration                                    54


                                 ARTICLE XIII
                      AMENDMENT OF PARTNERSHIP AGREEMENT

Section 13.1  Amendment to be Adopted Solely by the General Partner          54
Section 13.2  Amendment Procedures                                           56
 

                                                     All American Pipeline, L.P.

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                                  ARTICLE XIV
                                    MERGER

Section 14.1  Authority                                                      56
Section 14.2  Procedure for Merger or Consolidation                          57
Section 14.3  Approval by Limited Partners of Merger or Consolidation        58
Section 14.4  Certificate of Merger                                          58
Section 14.5  Effect of Merger                                               59


                                  ARTICLE XV
                              GENERAL PROVISIONS

Section 15.1  Addresses and Notices                                          59
Section 15.2  Further Action                                                 60
Section 15.3  Binding Effect                                                 60
Section 15.4  Integration                                                    60
Section 15.5  Creditors                                                      60
Section 15.6  Waiver                                                         60
Section 15.7  Counterparts                                                   60
Section 15.8  Applicable Law                                                 60
Section 15.9  Invalidity of Provisions                                       61
Section 15.10 Consent of Partners                                            61
 

                                                     All American Pipeline, L.P.

                                      -iv-

 
                              AMENDED AND RESTATED

                        AGREEMENT OF LIMITED PARTNERSHIP

                                       OF

                          ALL AMERICAN PIPELINE, L.P.



     THIS AMENDED AND RESTATED AGREEMENT OF LIMITED PARTNERSHIP of ALL AMERICAN
PIPELINE, L.P., dated as of November 23, is entered into by and between Plains
All American Inc., a Delaware corporation, as the General Partner, and Plains
Marketing, L.P., a Delaware limited partnership, as the Limited Partner,
together with any other Persons who hereafter become Partners in the Partnership
or parties hereto as provided herein.



                                R E C I T A L S:
                                - - - - - - - - 

     WHEREAS, All American Pipeline Company converted into a Texas limited
partnership pursuant to Articles of Conversion filed with the Texas Secretary of
State on November 16, 1998 with Plains All American Inc. as the sole general
partner and as a limited partner, and PAAI LLC, a Delaware limited liability
company, as a limited partner pursuant to the Agreement of Limited Partnership
of All American Pipeline, L.P. dated as of November 16, 1998 (the "Prior
Agreement"); and

     WHEREAS, PAAI LLC has contributed all of its interest in the Partnership to
Plains All American Pipeline, L.P., a Delaware limited partnership (the "MLP");
and

     WHEREAS, the Partners of the Partnership now desire to amend the Prior
Agreement to reflect the admission of the MLP as Limited Partner and to make
certain other changes.

     NOW, THEREFORE, in consideration of the covenants, conditions and
agreements contained herein, the parties hereto hereby amend the Prior Agreement
and, as so amended, restate it in its entirety as follows:


                                   ARTICLE I
                                  DEFINITIONS

Section 1.1   Definitions.

     The following definitions shall be for all purposes, unless otherwise
clearly indicated to the contrary, applied to the terms used in this Agreement.
Capitalized terms used herein but not otherwise defined shall have the meaning
assigned to such term in the MLP Agreement.

          "Additional Limited Partner" means a Person admitted to the
     Partnership as a Limited Partner pursuant to Section 10.4 and who is shown
     as such on the books and records of the Partnership.

                                                     All American Pipeline, L.P.

 
          "Adjusted Capital Account" means the Capital Account maintained for
     each Partner as of the end of each fiscal year of the Partnership, (a)
     increased by any amounts that such Partner is obligated to restore under
     the standards set by Treasury Regulation Section 1.704-1(b)(2)(ii)(c) (or
     is deemed obligated to restore under Treasury Regulation Sections 1.704-
     2(g) and 1.704-2(i)(5)) and (b) decreased by (i) the amount of all losses
     and deductions that, as of the end of such fiscal year, are reasonably
     expected to be allocated to such Partner in subsequent years under Sections
     704(e)(2) and 706(d) of the Code and Treasury Regulation Section 1.751-
     1(b)(2)(ii), and (ii) the amount of all distributions that, as of the end
     of such fiscal year, are reasonably expected to be made to such Partner in
     subsequent years in accordance with the terms of this Agreement or
     otherwise to the extent they exceed offsetting increases to such Partner's
     Capital Account that are reasonably expected to occur during (or prior to)
     the year in which such distributions are reasonably expected to be made
     (other than increases as a result of a minimum gain chargeback pursuant to
     Section 6.1(d)(i) or 6.1(d)(ii)). The foregoing definition of Adjusted
     Capital Account is intended to comply with the provisions of Treasury
     Regulation Section 1.704-1(b)(2)(ii)(d) and shall be interpreted
     consistently therewith.  The "Adjusted Capital Account" of a Partner in
     respect of a General Partner Interest or any other specified interest in
     the Partnership shall be the amount which such Adjusted Capital Account
     would be if such General Partner Interest or other interest in the
     Partnership were the only interest in the Partnership held by a Partner
     from and after the date on which such general partner interest or other
     interest was first issued.

          "Adjusted Property" means any property the Carrying Value of which has
     been adjusted pursuant to Section 5.5(d)(i) or 5.5(d)(ii). Once an Adjusted
     Property is deemed contributed to a new partnership in exchange for an
     interest in the new partnership, followed by a deemed liquidation of the
     Partnership for federal income tax purposes upon a termination of the
     Partnership pursuant to Treasury Regulation Section 1.708-(b)(1)(iv), such
     property shall thereafter constitute a Contributed Property until the
     Carrying Value of such property is subsequently adjusted pursuant to
     Section 5.5(d)(i) or 5.5(d)(ii).

          "Affiliate" means, with respect to any Person, any other Person that
     directly or indirectly through one or more intermediaries controls, is
     controlled by or is under common control with, the Person in question. As
     used herein, the term "control" means the possession, direct or indirect,
     of the power to direct or cause the direction of the management and
     policies of a Person, whether through ownership of voting securities, by
     contract or otherwise.

          "Agreed Allocation" means any allocation, other than a Required
     Allocation, of an item of income, gain, loss or deduction pursuant to the
     provisions of Section 6.1, including, without limitation, a Curative
     Allocation (if appropriate to the context in which the term "Agreed
     Allocation" is used).

          "Agreed Value" of any Contributed Property means the fair market value
     of such property or other consideration at the time of contribution as
     determined by the General Partner using such reasonable method of valuation
     as it may adopt. The General Partner shall, 

                                                     All American Pipeline, L.P.

                                      -2-

 
     in its discretion, use such method as it deems reasonable and appropriate
     to allocate the aggregate Agreed Value of Contributed Properties
     contributed to the Partnership in a single or integrated transaction among
     each separate property on a basis proportional to the fair market value of
     each Contributed Property.

          "Agreement" means this Amended and Restated Agreement of Limited
     Partnership of All American Pipeline, L.P., as it may be amended,
     supplemented or restated from time to time.

          "Assets" means the assets being conveyed to the Partnership on the
     Closing Date pursuant to Section 5.2 and the Contribution and Conveyance
     Agreement.

          "Assignee" means a Person to whom one or more Partnership Interests
     have been transferred in a manner permitted under this Agreement, but who
     has not been admitted as a Substituted Limited Partner.

          "Associate" means, when used to indicate a relationship with any
     Person, (a) any corporation or organization of which such Person is a
     director, officer or partner or is, directly or indirectly, the owner of
     20% or more of any class of voting stock or other voting interest; (b) any
     trust or other estate in which such Person has at least a 20% beneficial
     interest or as to which such Person serves as trustee or in a similar
     fiduciary capacity; and (c) any relative or spouse of such Person, or any
     relative of such spouse, who has the same principal residence as such
     Person.

          "Assumed Liabilities" means the liabilities that the Partnership is
     either assuming or taking subject to in connection with the conveyance of
     the Assets pursuant to Section 5.2 and the Contribution and Conveyance
     Agreement.

          "Available Cash" means, with respect to any Quarter ending prior to
     the Liquidation Date,

               (a) the sum of (i) all cash and cash equivalents of the
     Partnership Group on hand at the end of such Quarter, and (ii) all
     additional cash and cash equivalents of the Partnership Group on hand on
     the date of determination of Available Cash with respect to such Quarter
     resulting from Working Capital Borrowings made subsequent to the end of
     such Quarter, less

               (b) the amount of any cash reserves that is necessary or
     appropriate in the reasonable discretion of the General Partner to (i)
     provide for the proper conduct of the business of the Partnership Group
     (including reserves for future capital expenditures and for anticipated
     future credit needs of the Partnership Group) subsequent to such Quarter,
     (ii) comply with applicable law or any loan agreement, security agreement,
     mortgage, debt instrument or other agreement or obligation to which any
     Group Member is a party or by 

                                                     All American Pipeline, L.P.

                                      -3-

 
     which it is bound or its assets are subject or (iii) provide funds for
     distributions under Section 6.4 or 6.5 of the MLP Agreement in respect of
     any one or more of the next four Quarters; provided, however, that the
     General Partner may not establish cash reserves pursuant to (iii) above if
     the effect of such reserves would be that the MLP is unable to distribute
     the Minimum Quarterly Distribution on all Common Units, plus any Cumulative
     Common Unit Arrearage on all Common Units, with respect to such Quarter;
     and provided further that disbursements made by a Group Member or cash
     reserves established, increased or reduced after the end of such Quarter
     but on or before the date of determination of Available Cash with respect
     to such Quarter shall be deemed to have been made, established, increased
     or reduced, for purposes of determining Available Cash, within such Quarter
     if the General Partner so determines.

               Notwithstanding the foregoing, "Available Cash" with respect to
     the Quarter in which the Liquidation Date occurs and any subsequent Quarter
     shall equal zero.

          "Book-Tax Disparity" means with respect to any item of Contributed
     Property or Adjusted Property, as of the date of any determination, the
     difference between the Carrying Value of such Contributed Property or
     Adjusted Property and the adjusted basis thereof for federal income tax
     purposes as of such date. A Partner's share of the Partnership's Book-Tax
     Disparities in all of its Contributed Property and Adjusted Property will
     be reflected by the difference between such Partner's Capital Account
     balance as maintained pursuant to Section 5.5 and the hypothetical balance
     of such Partner's Capital Account computed as if it had been maintained
     strictly in accordance with federal income tax accounting principles.

          "Business Day" means Monday through Friday of each week, except that a
     legal holiday recognized as such by the government of the United States of
     America or the states of New York or Texas shall not be regarded as a
     Business Day.

          "Capital Account" means the capital account maintained for a Partner
     pursuant to Section 5.5. The "Capital Account" of a Partner in respect of a
     General Partner Interest or any other specified interest in the Partnership
     shall be the amount which such Capital Account would be if such General
     Partner Interest or other specified interest in the Partnership were the
     only interest in the Partnership held by a Partner from and after the date
     on which such General Partner Interest or other specified interest in the
     Partnership was first issued.

          "Capital Contribution" means any cash, cash equivalents or the Net
     Agreed Value of Contributed Property that a Partner contributes to the
     Partnership pursuant to this Agreement or the Contribution and Conveyance
     Agreement.

          "Carrying Value" means (a) with respect to a Contributed Property, the
     Agreed Value of such property reduced (but not below zero) by all
     depreciation, amortization and cost recovery deductions charged to the
     Partners' and Assignees' Capital Accounts in respect of such Contributed
     Property, and (b) with respect to any other Partnership property, the

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                                      -4-

 
     adjusted basis of such property for federal income tax purposes, all as of
     the time of determination. The Carrying Value of any property shall be
     adjusted from time to time in accordance with Sections 5.5(d)(i) and
     5.5(d)(ii) and to reflect changes, additions or other adjustments to the
     Carrying Value for dispositions and acquisitions of Partnership properties,
     as deemed appropriate by the General Partner.

          "Certificate of Limited Partnership" means the Certificate of Limited
     Partnership of the Partnership filed with the Secretary of State of the
     State of Texas as referenced in Section 2.1, as such Certificate of Limited
     Partnership may be amended, supplemented or restated from time to time.

          "Closing Date" means the first date on which Common Units are sold by
     the MLP to the Underwriters pursuant to the provisions of the Underwriting
     Agreement.

          "Code" means the Internal Revenue Code of 1986, as amended and in
     effect from time to time. Any reference herein to a specific section or
     sections of the Code shall be deemed to include a reference to any
     corresponding provision of successor law.

          "Commission" means the United States Securities and Exchange
     Commission.

          "Common Unit" has the meaning assigned to such term in the MLP
     Agreement.

          "Contributed Property" means each property or other asset, in such
     form as may be permitted by the Texas Act, but excluding cash, contributed
     to the Partnership (or deemed contributed to a new partnership on
     termination of the Partnership pursuant to Section 708 of the Code. Once
     the Carrying Value of a Contributed Property is adjusted pursuant to
     Section 5.5(d), such property shall no longer constitute a Contributed
     Property, but shall be deemed an Adjusted Property.

          "Contribution and Conveyance Agreement" means that certain
     Contribution, Conveyance and Assumption Agreement, dated as of the Closing
     Date, among the General Partner, the Plains Midstream Subsidiaries, the
     MLP, the Partnership and certain other parties, together with the
     additional conveyance documents and instruments contemplated or referenced
     thereunder.

          "Curative Allocation" means any allocation of an item of income, gain,
     deduction, loss or credit pursuant to the provisions of Section 6.1(d)(ix).

          "Departing Partner" means a former General Partner from and after the
     effective date of any withdrawal or removal of such former General Partner
     pursuant to Section 11.1 or 11.2.

                                                     All American Pipeline, L.P.

                                      -5-

 
          "Economic Risk of Loss" has the meaning set forth in Treasury
     Regulation Section 1.752-2(a).

          "Event of Withdrawal" has the meaning assigned to such term in Section
     11.1(a).

          "Gathering LLC" means Gathering LLC, a Delaware limited liability
     company.

          "General Partner" means Plains All American Inc. and its successors
     and permitted assigns as general partner of the Partnership.

          "General Partner Interest" means the ownership interest of the General
     Partner in the Partnership (in its capacity as a general partner) and
     includes any and all benefits to which the General Partner is entitled as
     provided in this Agreement, together with all obligations of the General
     Partner to comply with the terms and provisions of this Agreement.

          "Group" means a Person that with or through any of its Affiliates or
     Associates has any agreement, arrangement or understanding for the purpose
     of acquiring, holding, voting (except voting pursuant to a revocable proxy
     or consent given to such Person in response to a proxy or consent
     solicitation made to 10 or more Persons) or disposing of any MLP Securities
     with any other Person that beneficially owns, or whose Affiliates or
     Associates beneficially own, directly or indirectly, MLP Securities.

          "Group Member" means a member of the Partnership Group.

          "Indemnitee" means (a) the General Partner, (b) any Departing Partner,
     (c) any Person who is or was an Affiliate of the General Partner or any
     Departing Partner, (d) any Person who is or was a member, partner, officer,
     director, employee, agent or trustee of any Group Member,  the General
     Partner or any Departing Partner or any Affiliate of any Group Member, the
     General Partner or any Departing Partner, and (e) any Person who is or was
     serving at the request of the General Partner or any Departing Partner or
     any Affiliate of the General Partner or any Departing Partner as an
     officer, director, employee, member, partner, agent, fiduciary or trustee
     of another Person; provided, that a Person shall not be an Indemnitee by
     reason of providing, on a fee-for-services basis, trustee, fiduciary or
     custodial services.

          "Initial Offering" means the initial offering and sale of Common Units
     to the public, as described in the Registration Statement.

          "Limited Partner Interest" means the ownership interest of a Limited
     Partner or Assignee in the Partnership and includes any and all benefits to
     which such Limited Partner or Assignee is entitled as provided in this
     Agreement, together with all obligations of such Limited Partner or
     Assignee to comply with the terms and provisions of this Agreement.


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          "Liquidation Date" means (a) in the case of an event giving rise to
     the dissolution of the Partnership of the type described in clauses (a) and
     (b) of the first sentence of Section 12.2, the date on which the applicable
     time period during which the Partners have the right to elect to
     reconstitute the Partnership and continue its business has expired without
     such an election being made, and (b) in the case of any other event giving
     rise to the dissolution of the Partnership, the date on which such event
     occurs.

          "Liquidator" means one or more Persons selected by the General Partner
     to perform the functions described in Section 12.3 as liquidating trustee
     of the Partnership within the meaning of the Texas Act.

          "Limited Partner" means any Person that is admitted to the Partnership
     as a limited partner pursuant to the terms and conditions of this
     Agreement; but the term Limited Partner shall not include any Person from
     and after the time such Person withdraws as a Limited Partner from the
     Partnership.

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

          "Marketing Partnership Agreement" means the Amended and Restated
     Agreement of Limited Partnership of Plains Marketing, L.P., as it may be
     amended, supplemented or restated from time to time.

          "Merger Agreement" has the meaning assigned to such term in Section
     14.1.

          "Minimum Quarterly Distribution" has the meaning assigned to such term
     in the MLP Agreement.

          "MLP" means Plains All American Pipeline, L.P.

          "MLP Agreement" means the Amended and Restated Agreement of Limited
     Partnership of Plains All American Pipeline, L.P., as it may be amended,
     supplemented or restated from time to time.

          "MLP Security" has the meaning assigned to the term "Partnership
     Security" in the MLP Agreement.

          "Net Agreed Value" means, (a) in the case of any Contributed Property,
     the Agreed Value of such property reduced by any liabilities either assumed
     by the Partnership upon such contribution or to which such property is
     subject when contributed, and (b) in the case of any property distributed
     to a Partner or Assignee by the Partnership, the Partnership's Carrying
     Value of such property (as adjusted pursuant to Section 5.5(d)(ii)) at the
     time such property is distributed, reduced by any indebtedness either
     assumed by such Partner or Assignee upon 

                                                     All American Pipeline, L.P.

                                      -7-

 
     such distribution or to which such property is subject at the time of
     distribution, in either case, as determined under Section 752 of the Code.

          "Net Income" means, for any taxable year, the excess, if any, of the
     Partnership's items of income and gain (other than those items taken into
     account in the computation of Net Termination Gain or Net Termination Loss)
     for such taxable year over the Partnership's items of loss and deduction
     (other than those items taken into account in the computation of Net
     Termination Gain or Net Termination Loss) for such taxable year. The items
     included in the calculation of Net Income shall be determined in accordance
     with Section 5.5(b) and shall not include any items specially allocated
     under Section 6.1(d).

          "Net Loss" means, for any taxable year, the excess, if any, of the
     Partnership's items of loss and deduction (other than those items taken
     into account in the computation of Net Termination Gain or Net Termination
     Loss) for such taxable year over the Partnership's items of income and gain
     (other than those items taken into account in the computation of Net
     Termination Gain or Net Termination Loss) for such taxable year. The items
     included in the calculation of Net Loss shall be determined in accordance
     with Section 5.5(b) and shall not include any items specially allocated
     under Section 6.1(d).

          "Net Termination Gain" means, for any taxable year, the sum, if
     positive, of all items of income, gain, loss or deduction recognized by the
     Partnership after the Liquidation Date. The items included in the
     determination of Net Termination Gain shall be determined in accordance
     with Section 5.5(b) and shall not include any items of income, gain or loss
     specially allocated under Section 6.1(d).

          "Net Termination Loss" means, for any taxable year, the sum, if
     negative, of all items of income, gain, loss or deduction recognized by the
     Partnership after the Liquidation Date. The items included in the
     determination of Net Termination Loss shall be determined in accordance
     with Section 5.5(b) and shall not include any items of income, gain or loss
     specially allocated under Section 6.1(d).

          "Nonrecourse Built-in Gain" means with respect to any Contributed
     Properties or Adjusted Properties that are subject to a mortgage or pledge
     securing a Nonrecourse Liability, the amount of any taxable gain that would
     be allocated to the Partners pursuant to Sections 6.2(b)(i)(A),
     6.2(b)(ii)(A) and 6.2(b)(iii) if such properties were disposed of in a
     taxable transaction in full satisfaction of such liabilities and for no
     other consideration.

          "Nonrecourse Deductions" means any and all items of loss, deduction or
     expenditures (described in Section 705(a)(2)(B) of the Code) that, in
     accordance with the principles of Treasury Regulation Section 1.704-2(b),
     are attributable to a Nonrecourse Liability.

          "Nonrecourse Liability" has the meaning set forth in Treasury
     Regulation Section 1.752-1(a)(2).

                                                     All American Pipeline, L.P.

                                      -8-

 
          "OLP Subsidiary" means a Subsidiary of the OLP.

          "Omnibus Agreement" means that Omnibus Agreement, dated as of the
     Closing Date, among Plains Resources, Inc., the General Partner, the MLP,
     Marketing and the Partnership.

          "Opinion of Counsel" means a written opinion of counsel (which may be
     regular counsel to the Partnership or the General Partner or any of its
     Affiliates) acceptable to the General Partner in its reasonable discretion.

          "Partner Nonrecourse Debt" has the meaning set forth in Treasury
     Regulation Section 1.704-2(b)(4).

          "Partner Nonrecourse Debt Minimum Gain" has the meaning set forth in
     Treasury Regulation Section 1.704-2(i)(2).

          "Partner Nonrecourse Deductions" means any and all items of loss,
     deduction or expenditure (including, without limitation, any expenditure
     described in Section 705(a)(2)(B) of the Code) that, in accordance with the
     principles of Treasury Regulation Section 1.704-2(i), are attributable to a
     Partner Nonrecourse Debt.

          "Partnership" means All American Pipeline, L.P., a Texas limited
     partnership, and any successors thereto.

          "Partnership Group" means the Partnership and all OLP Subsidiaries,
     treated as a single consolidated entity.

          "Partnership Interest" means an ownership interest of a Partner in the
     Partnership, which shall include the General Partner Interest and the
     Limited Partner Interest(s).

          "Partnership Minimum Gain" means that amount determined in accordance
     with the principles of Treasury Regulation Section 1.704-2(d).

          "Percentage Interest" means the percentage interest in the Partnership
     held by each Partner upon completion of the transactions in Section 5.4 and
     shall mean, (a) as to the General Partner, an aggregate .001% and (b) as to
     the MLP, 99.999%.

          "Person" means an individual or a corporation, limited liability
     company, partnership, joint venture, trust, unincorporated organization,
     association, government agency or political subdivision thereof or other
     entity.

          "Prior Agreement" is defined in the Recitals.

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                                      -9-

 
          "Pro Rata" means,  when modifying Partners and Assignees, apportioned
     among all Partners and Assignees in accordance with their relative
     Percentage Interests.

          "Quarter" means, unless the context requires otherwise, a fiscal
     quarter of the Partnership.

          "Recapture Income" means any gain recognized by the Partnership
     (computed without regard to any adjustment required by Section 734 or
     Section 743 of the Code) upon the disposition of any property or asset of
     the Partnership, which gain is characterized as ordinary income because it
     represents the recapture of deductions previously taken with respect to
     such property or asset.

          "Registration Statement" means the Registration Statement on Form S-1
     (Registration No. 333-64107) as it has been or as it may be amended or
     supplemented from time to time, filed by the MLP with the Commission under
     the Securities Act to register the offering and sale of the Common Units in
     the Initial Offering.

          "Required Allocations" means (a) any limitation imposed on any
     allocation of Net Losses or Net Termination Losses under Section 6.1(b) or
     6.1(c)(ii) and (b) any allocation of an item of income, gain, loss or
     deduction pursuant to Section 6.1(d)(i), 6.1(d)(ii), 6.1(d)(iv),
     6.1(d)(vii) or 6.1(d)(ix).

          "Residual Gain" or "Residual Loss" means any item of gain or loss, as
     the case may be, of the Partnership recognized for federal income tax
     purposes resulting from a sale, exchange or other disposition of a
     Contributed Property or Adjusted Property, to the extent such item of gain
     or loss is not allocated pursuant to Section 6.2(b)(i)(A) or 6.2(b)(ii)(A),
     respectively, to eliminate Book-Tax Disparities.

          "Restricted Business" has the meaning assigned to such term in the
     Omnibus Agreement.

          "Securities Act" means the Securities Act of 1933, as amended,
     supplemented or restated from time to time and any successor to such
     statute.

          "Special Approval" has the meaning assigned to such term in the MLP
     Agreement.

          "Subsidiary" means, with respect to any Person, (a) a corporation of
     which more than 50% of the voting power of shares entitled (without regard
     to the occurrence of any contingency) to vote in the election of directors
     or other governing body of such corporation is owned, directly or
     indirectly, at the date of determination, by such Person, by one or more
     Subsidiaries of such Person or a combination thereof, (b) a partnership
     (whether general or limited) in which such Person or a Subsidiary of such
     Person is, at the date of determination, a general or limited partner of
     such partnership, but only if more than 50% of the partnership 

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                                      -10-

 
     interests of such partnership (considering all of the partnership interests
     of the partnership as a single class) is owned, directly or indirectly, at
     the date of determination, by such Person, by one or more Subsidiaries of
     such Person, or a combination thereof, or (c) any other Person (other than
     a corporation or a partnership) in which such Person, one or more
     Subsidiaries of such Person, or a combination thereof, directly or
     indirectly, at the date of determination, has (i) at least a majority
     ownership interest or (ii) the power to elect or direct the election of a
     majority of the directors or other governing body of such Person.

          "Substituted Limited Partner" means a Person who is admitted as a
     Limited Partner to the Partnership pursuant to Section 10.2 in place of and
     with all the rights of a Limited Partner and who is shown as a Limited
     Partner on the books and records of the Partnership.

          "Surviving Business Entity" has the meaning assigned to such term in
     Section 14.2(b).

          "Texas Act" means the Texas Revised Limited Partnership Act, Tex. Rev.
     Civ. Stat. Ann., art. 6132a-1 (Vernon's Texas Statutes), et seq., as
     amended, supplemented or restated from time to time, and any successor to
     such statute.

          "Transfer" has the meaning assigned to such term in Section 4.4(a).

          "Underwriter" means each Person named as an underwriter in Schedule I
     to the Underwriting Agreement who purchases Common Units pursuant thereto.

          "Underwriting Agreement" means the Underwriting Agreement dated
     November 17, 1998 among the Underwriters, the MLP and certain other
     parties, providing for the purchase of Common Units by such Underwriters.

          "Unit" has the meaning assigned to such term in the MLP Agreement.

          "Unit Majority" has the meaning assigned to such term in the MLP
     Agreement.

          "Unrealized Gain" attributable to any item of Partnership property
     means, as of any date of determination, the excess, if any, of (a) the fair
     market value of such property as of such date (as determined under Section
     5.5(d)) over (b) the Carrying Value of such property as of such date (prior
     to any adjustment to be made pursuant to Section 5.5(d) as of such date).

          "Unrealized Loss" attributable to any item of Partnership property
     means, as of any date of determination, the excess, if any, of (a) the
     Carrying Value of such property as of such date (prior to any adjustment to
     be made pursuant to Section 5.5(d) as of such date) over (b) the fair
     market value of such property as of such date (as determined under Section
     5.5(d)).

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                                      -11-

 
          "U.S. GAAP" means United States Generally Accepted Accounting
     Principles consistently applied.

          "Working Capital Borrowings" means borrowings exclusively for working
     capital purposes made pursuant to a credit facility or other arrangement
     requiring all such borrowings thereunder to be reduced to a relatively
     small amount each year for an economically meaningful period of time.

Section 1.2   Construction.

     Unless the context requires otherwise: (a) any pronoun used in this
Agreement shall include the corresponding masculine, feminine or neuter forms,
and the singular form of nouns, pronouns and verbs shall include the plural and
vice versa; (b) references to Articles and Sections refer to Articles and
Sections of this Agreement; and (c) the term "include" or "includes" means
includes, without limitation, and "including" means including, without
limitation.

                                  ARTICLE II
                                 ORGANIZATION

Section 2.1   Formation.

     The Partnership was previously formed as a limited partnership pursuant to
the provisions of the Texas Act.  The Partners hereby amend and restate the
Prior Agreement in its entirety. This amendment and restatement shall become
effective on the date of this Agreement. Except as expressly provided to the
contrary in this Agreement, the rights, duties (including fiduciary duties),
liabilities and obligations of the Partners and the administration, dissolution
and termination of the Partnership shall be governed by the Texas Act. All
Partnership Interests shall constitute personal property of the owner thereof
for all purposes and a Partner has no interest in specific Partnership property.

Section 2.2   Name.

     The name of the Partnership shall be "All American Pipeline, L.P."  The
Partnership's business may be conducted under any other name or names deemed
necessary or appropriate by the General Partner in its sole discretion,
including the name of the General Partner. The words "Limited Partnership,"
"L.P." or "Ltd." or similar words or letters shall be included in the
Partnership's name where necessary for the purpose of complying with the laws of
any jurisdiction that so requires. The General Partner in its discretion may
change the name of the Partnership at any time and from time to time and shall
notify the other Partner(s) of such change in the next regular communication to
the Partners.

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                                      -12-

 
Section 2.3   Registered Office; Registered Agent; Principal Office; Other
              Offices.

     Unless and until changed by the General Partner, the registered office of
the Partnership in the State of Texas shall be located at 500 Dallas, Suite 700,
Houston, Texas  77002, and the registered agent for service of process on the
Partnership in the State of Texas at such registered office shall be Michael R.
Patterson. The principal office of the Partnership shall be located at 500
Dallas, Suite 700, Houston, Texas  77002 or such other place as the General
Partner may from time to time designate by notice to the Limited Partners. The
Partnership may maintain offices at such other place or places within or outside
the State of Texas as the General Partner deems necessary or appropriate. The
address of the General Partner shall be 500 Dallas, Suite 700, Houston, Texas
77002 or such other place as the General Partner may from time to time designate
by notice to the Limited Partners.

Section 2.4   Purpose and Business.

     The purpose and nature of the business to be conducted by the Partnership
shall be to (a) acquire, manage, operate and sell the Assets and any similar
assets or properties now or hereafter acquired by the Partnership, (b) engage
directly in, or enter into or form any corporation, partnership, joint venture,
limited liability company or other arrangement to engage indirectly in, any
business activity that the Partnership is permitted to engage in, or any type of
business or activity engaged in by the General Partner prior to the Closing Date
and, in connection therewith, to exercise all of the rights and powers conferred
upon the Partnership pursuant to the agreements relating to such business
activity, (c) engage directly in, or enter into or form any corporation,
partnership, joint venture, limited liability company or other arrangement to
engage indirectly in, any business activity that is approved by the General
Partner and which lawfully may be conducted by a limited partnership organized
pursuant to the Texas Act and, in connection therewith, to exercise all of the
rights and powers conferred upon the Partnership pursuant to the agreements
relating to such business activity; provided, however, that the General Partner
reasonably determines, as of the date of the acquisition or commencement of such
activity, that such activity (i) generates "qualifying income" (as such term is
defined pursuant to Section 7704 of the Code) or (ii) enhances the operations of
an activity of the Partnership that generates qualifying income, and (d) do
anything necessary or appropriate to the foregoing, including the making of
capital contributions or loans to a Group Member, the MLP or any Subsidiary of
the MLP. The General Partner has no obligation or duty to the Partnership, the
Limited Partners, or the Assignees to propose or approve, and in its discretion
may decline to propose or approve, the conduct by the Partnership of any
business.

Section 2.5   Powers.

     The Partnership shall be empowered to do any and all acts and things
necessary, appropriate, proper, advisable, incidental to or convenient for the
furtherance and accomplishment of the purposes and business described in Section
2.4 and for the protection and benefit of the Partnership.

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                                      -13-

 
Section 2.6   Power of Attorney.

          (a) Each Partner and each Assignee hereby constitutes and appoints the
General Partner and, if a Liquidator shall have been selected pursuant to
Section 12.3, the Liquidator (and any successor to the Liquidator by merger,
transfer, assignment, election or otherwise) and each of their authorized
officers and attorneys-in-fact, as the case may be, with full power of
substitution, as its true and lawful agent and attorney-in-fact, with full power
and authority in his name, place and stead, to:

          (i) execute, swear to, acknowledge, deliver, file and record in the
     appropriate public offices (A) all certificates, documents and other
     instruments (including this Agreement and the Certificate of Limited
     Partnership and all amendments or restatements hereof or thereof) that the
     General Partner or the Liquidator deems necessary or appropriate to form,
     qualify or continue the existence or qualification of the Partnership as a
     limited partnership (or a partnership in which the limited partners have
     limited liability) in the State of Texas and in all other jurisdictions in
     which the Partnership may conduct business or own property; (B) all
     certificates, documents and other instruments that the General Partner or
     the Liquidator deems necessary or appropriate to reflect, in accordance
     with its terms, any amendment, change, modification or restatement of this
     Agreement; (C) all certificates, documents and other instruments (including
     conveyances and a certificate of cancellation) that the General Partner or
     the Liquidator deems necessary or appropriate to reflect the dissolution
     and liquidation of the Partnership pursuant to the terms of this Agreement;
     (D) all certificates, documents and other instruments relating to the
     admission, withdrawal, removal or substitution of any Partner pursuant to,
     or other events described in, Article IV, X, XI or XII; (E) all
     certificates, documents and other instruments relating to the determination
     of the rights, preferences and privileges of any class or series of
     Partnership Interests issued pursuant hereto; and (F) all certificates,
     documents and other instruments (including agreements and a certificate of
     merger) relating to a merger or consolidation of the Partnership pursuant
     to Article XIV; and

          (ii)  execute, swear to, acknowledge, deliver, file and record all
     ballots, consents, approvals, waivers, certificates, documents and other
     instruments necessary or appropriate, in the discretion of the General
     Partner or the Liquidator, to make, evidence, give, confirm or ratify any
     vote, consent, approval, agreement or other action that is made or given by
     the Partners hereunder or is consistent with the terms of this Agreement or
     is necessary or appropriate, in the discretion of the General Partner or
     the Liquidator, to effectuate the terms or intent of this Agreement;
     provided, that when required by any provision of this Agreement that
     establishes a percentage of the Limited Partners or of the Limited Partners
     of any class or series required to take any action, the General Partner and
     the Liquidator may exercise the power of attorney made in this Section
     2.6(a)(ii) only after the necessary vote, consent or approval of the
     Limited Partners or of the Limited Partners of such class or series, as
     applicable.

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                                      -14-

 
     Nothing contained in this Section 2.6(a) shall be construed as authorizing
the General Partner to amend this Agreement except in accordance with Article
XIII or as may be otherwise expressly provided for in this Agreement.

          (b) The foregoing power of attorney is hereby declared to be
irrevocable and a power coupled with an interest, and it shall survive and, to
the maximum extent permitted by law, not be affected by the subsequent death,
incompetency, disability, incapacity, dissolution, bankruptcy or termination of
any Limited Partner or Assignee and the transfer of all or any portion of such
Limited Partner's or Assignee's Partnership Interest and shall extend to such
Limited Partner's or Assignee's successors and assigns. Each such Limited
Partner or Assignee hereby agrees to be bound by any representation made by the
General Partner or the Liquidator acting in good faith pursuant to such power of
attorney; and each such Limited Partner or Assignee, to the maximum extent
permitted by law, hereby waives any and all defenses that may be available to
contest, negate or disaffirm the action of the General Partner or the Liquidator
taken in good faith under such power of attorney. Each Limited Partner or
Assignee shall execute and deliver to the General Partner or the Liquidator,
within 15 days after receipt of the request therefor, such further designation,
powers of attorney and other instruments as the General Partner or the
Liquidator deems necessary to effectuate this Agreement and the purposes of the
Partnership.

Section 2.7   Term.

     The term of the Partnership commenced upon the filing of the Certificate of
Limited Partnership in accordance with the Texas Act and shall continue in
existence until the close of Partnership business on December 31, 2088 or until
the earlier dissolution of the Partnership in accordance with the provisions of
Article XII. The existence of the Partnership as a separate legal entity shall
continue until the cancellation of the Certificate of Limited Partnership as
provided in the Texas Act.

Section 2.8   Title to Partnership Assets.

     Title to Partnership assets, whether real, personal or mixed and whether
tangible or intangible, shall be deemed to be owned by the Partnership as an
entity, and no Partner or Assignee, individually or collectively, shall have any
ownership interest in such Partnership assets or any portion thereof. Title to
any or all of the Partnership assets may be held in the name of the Partnership,
the General Partner, one or more of its Affiliates or one or more nominees, as
the General Partner may determine. The General Partner hereby declares and
warrants that any Partnership assets for which record title is held in the name
of the General Partner or one or more of its Affiliates or one or more nominees
shall be held by the General Partner or such Affiliate or nominee for the use
and benefit of the Partnership in accordance with the provisions of this
Agreement; provided, however, that the General Partner shall use reasonable
efforts to cause record title to such assets (other than those assets in respect
of which the General Partner determines that the expense and difficulty of
conveyancing makes transfer of record title to the Partnership impracticable) to
be vested in the Partnership as soon as reasonably practicable; provided,
further, that, prior to the withdrawal or removal of the General 

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                                      -15-

 
Partner or as soon thereafter as practicable, the General Partner shall use
reasonable efforts to effect the transfer of record title to the Partnership
and, prior to any such transfer, will provide for the use of such assets in a
manner satisfactory to the General Partner. All Partnership assets shall be
recorded as the property of the Partnership in its books and records,
irrespective of the name in which record title to such Partnership assets is
held.

                                  ARTICLE III
                          RIGHTS OF LIMITED PARTNERS

Section 3.1   Limitation of Liability.

     The Limited Partners and the Assignees shall have no liability under this
Agreement except as expressly provided in this Agreement or in the Texas Act.

Section 3.2   Management of Business.

     No Limited Partner or Assignee, in its capacity as such, shall participate
in the operation, management or control (within the meaning of the Texas Act) of
the Partnership's business, transact any business in the Partnership's name or
have the power to sign documents for or otherwise bind the Partnership. Any
action taken by any Affiliate of the General Partner or any officer, director,
employee, member, general partner, agent or trustee of the General Partner or
any of its Affiliates, or any officer, director, employee, member, general
partner, agent or trustee of a Group Member, in its capacity as such, shall not
be deemed to be participation in the control of the business of the Partnership
by a limited partner of the Partnership (within the meaning of Section 3.03(a)
of the Texas Act) and shall not affect, impair or eliminate the limitations on
the liability of the Limited Partners or Assignees under this Agreement.

Section 3.3   Outside Activities of the Limited Partners.

     Subject to the provisions of Section 7.5 and the Omnibus Agreement, which
shall continue to be applicable to the Persons referred to therein, regardless
of whether such Persons shall also be Limited Partners or Assignees, any Limited
Partner or Assignee shall be entitled to and may have business interests and
engage in business activities in addition to those relating to the Partnership,
including business interests and activities in direct competition with the
Partnership Group. Neither the Partnership nor any of the other Partners or
Assignees shall have any rights by virtue of this Agreement in any business
ventures of any Limited Partner or Assignee.

Section 3.4   Rights of Limited Partners.

          (a) In addition to other rights provided by this Agreement or by
applicable law, and except as limited by Section 3.4(b), each Limited Partner
shall have the right, for a purpose reasonably related to such Limited Partner's
interest as a limited partner in the Partnership, upon reasonable written demand
and at such Limited Partner's own expense:

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                                      -16-

 
          (i) to obtain true and full information regarding the status of the
     business and financial condition of the Partnership;

          (ii)  promptly after becoming available, to obtain a copy of the
     Partnership's federal, state and local income tax returns for each year;

          (iii)  to have furnished to him a current list of the name and last
     known business, residence or mailing address of each Partner;

          (iv)  to have furnished to him a copy of this Agreement and the
     Certificate of Limited Partnership and all amendments thereto, together
     with a copy of the executed copies of all powers of attorney pursuant to
     which this Agreement, the Certificate of Limited Partnership and all
     amendments thereto have been executed;

          (v) to obtain true and full information regarding the amount of cash
     and a description and statement of the Net Agreed Value of any other
     Capital Contribution by each Partner and which each Partner has agreed to
     contribute in the future, and the date on which each became a Partner; and

          (vi)  to obtain such other information regarding the affairs of the
     Partnership as is just and reasonable.

          (b) The General Partner may keep confidential from the Limited
Partners and Assignees, for such period of time as the General Partner deems
reasonable, (i) any information that the General Partner reasonably believes to
be in the nature of trade secrets or (ii) other information the disclosure of
which the General Partner in good faith believes (A) is not in the best
interests of the MLP or the Partnership Group, (B) could damage the MLP or the
Partnership Group or (C) that any Group Member is required by law or by
agreement with any third party to keep confidential (other than agreements with
Affiliates of the Partnership the primary purpose of which is to circumvent the
obligations set forth in this Section 3.4).

                                  ARTICLE IV
                       TRANSFERS OF PARTNERSHIP INTERESTS

Section 4.1   Transfer Generally.

          (a) The term "transfer," when used in this Agreement with respect to a
Partnership Interest, shall be deemed to refer to a transaction by which the
General Partner assigns its General Partner Interest to another Person who
becomes the General Partner (or an Assignee) or by which the holder of a Limited
Partner Interest assigns such Limited Partner Interest to another Person who
becomes a Limited Partner (or an Assignee), and includes a sale, assignment,
gift, pledge, encumbrance, hypothecation, mortgage, exchange or any other
disposition by law or otherwise.

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                                      -17-

 
          (b) No Partnership Interest shall be transferred, in whole or in part,
except in accordance with the terms and conditions set forth in this Article IV.
Any transfer or purported transfer of a Partnership Interest not made in
accordance with this Article IV shall be null and void.

          (c) Nothing contained in this Agreement shall be construed to prevent
a disposition by any shareholder of the General Partner of any or all of the
issued and outstanding capital stock of the General Partner.

Section 4.2   Transfer of General Partner's Partnership Interest.

          If the General Partner transfers its interest as the general partner
of the MLP to any Person in accordance with the provisions of the MLP Agreement,
the General Partner shall contemporaneously therewith transfer all, but not less
than all, of its General Partner Interest herein to such Person, and the Limited
Partners and Assignees, if any, hereby expressly consent to such transfer.
Except as set forth in the immediately preceding sentence and in Section 5.2, a
General Partner may not transfer all or any part of its Partnership Interest as
the General Partner.

Section 4.3   Transfer of a Limited Partner's Partnership Interest.

          A Limited Partner may transfer all, but not less than all, of its
Partnership Interest as a Limited Partner in connection with the merger,
consolidation or other combination of such Limited Partner with or into any
other Person or the transfer by such Limited Partner of all or substantially all
of its assets to another Person, and following any such transfer such Person may
become a Substituted Limited Partner pursuant to Article X.  Except as set forth
in the immediately preceding sentence and in Section 5.2, or in connection with
any pledge of (or any related foreclosure on) a Partnership Interest as a
Limited Partner solely for the purpose of securing, directly or indirectly,
indebtedness of the Partnership or the MLP, and except for the transfers
contemplated by Sections 5.2 and 10.1, a Limited Partner may not transfer all or
any part of its Partnership Interest or withdraw from the Partnership.

Section 4.4   Restrictions on Transfers.

          (a) Notwithstanding the other provisions of this Article IV, no
transfer of any Partnership Interest shall be made if such transfer would (i)
violate the then applicable federal or state securities laws or rules and
regulations of the Commission, any state securities commission or any other
governmental authority with jurisdiction over such transfer, (ii) terminate the
existence or qualification of the Partnership or the MLP under the laws of the
jurisdiction of its formation or (iii) cause the Partnership or the MLP to be
treated as an association taxable as a corporation or otherwise to be taxed as
an entity for federal income tax purposes (to the extent not already so treated
or taxed).

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                                      -18-

 
          (b) The General Partner may impose restrictions on the transfer of
Partnership Interests if a subsequent Opinion of Counsel determines that such
restrictions are necessary to avoid a significant risk of the Partnership or the
MLP becoming taxable as a corporation or otherwise to be taxed as an entity for
federal income tax purposes.  The restrictions may be imposed by making such
amendments to this Agreement as the General Partner may determine to be
necessary or appropriate to impose such restrictions.


                                   ARTICLE V
          CAPITAL CONTRIBUTIONS AND ISSUANCE OF PARTNERSHIP INTERESTS

Section 5.1   Initial Contributions.

     In connection with the conversion of All American Pipeline Company to the
Partnership, the investment of the General Partner and PAAI LLC in the stock of
All American Pipeline Company prior to its conversion became its respective
capital contribution to the Partnership.

Section 5.2   Contributions Pursuant to the Contribution and Conveyance
              Agreement.

          (a) Pursuant to the Contribution and Conveyance Agreement, the
Partnership has assumed certain indebtedness relating to the Assets as described
in the Contribution and Conveyance Agreement.

          (b) Pursuant to the Contribution and Conveyance Agreement, the
Partnership has distributed to the General Partner all of its interest in
Gathering LLC.

          (c) Notwithstanding anything else herein contained, if the aggregate
excess net working capital reflected on the balance sheets of the Partnership
and Marketing that are prepared in accordance with Section 7.3 of the
Contribution and Conveyance Agreement is in excess of $8,000,000, then the
Partnership shall distribute to the General Partner all of its excess net
working capital up to the total amount of such excess.  In the event that such
aggregate excess net working capital is less than $8,000,000, the General
Partner shall contribute to the Partnership, as a Capital Contribution, cash in
an amount equal to the amount that, when added to the amount of the similar
contribution made to Marketing by the General Partner, would cause the aggregate
excess net working capital of the Partnership and Marketing to be equal to
$8,000,000.

          (d) Following the foregoing transactions, the General Partner holds a
 .001% General Partner Interest and the MLP holds a 99.999% Limited Partner
Interest.

Section 5.3   Additional Capital Contributions.

     With the consent of the General Partner, any Limited Partner may, but shall
not be obligated to, make additional Capital Contributions to the Partnership.
Contemporaneously with the making of any Capital Contributions by a Limited
Partner, in addition to those provided in Sections 5.1 and 

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                                      -19-

 
5.2, the General Partner shall be obligated to make an additional Capital
Contribution to the Partnership in an amount equal to .001 divided by 99.999
times the amount of the additional Capital Contribution then made by such
Limited Partner. Except as set forth in the immediately preceding sentence and
in Article XII, the General Partner shall not be obligated to make any
additional Capital Contributions to the Partnership.

Section 5.4   Interest and Withdrawal.

     No interest shall be paid by the Partnership on Capital Contributions. No
Partner or Assignee shall be entitled to the withdrawal or return of its Capital
Contribution, except to the extent, if any, that distributions made pursuant to
this Agreement or upon termination of the Partnership may be considered as such
by law and then only to the extent provided for in this Agreement. Except to the
extent expressly provided in this Agreement, no Partner or Assignee shall have
priority over any other Partner or Assignee either as to the return of Capital
Contributions or as to profits, losses or distributions.

Section 5.5   Capital Accounts.

          (a) The Partnership shall maintain for each Partner (or a beneficial
owner of Partnership Interests held by a nominee in any case in which the
nominee has furnished the identity of such owner to the Partnership in
accordance with Section 6031(c) of the Code or any other method acceptable to
the General Partner in its sole discretion) owning a Partnership Interest a
separate Capital Account with respect to such Partnership Interest in accordance
with the rules of Treasury Regulation Section 1.704-1(b)(2)(iv). Such Capital
Account shall be increased by (i) the amount of all Capital Contributions made
to the Partnership with respect to such Partnership Interest pursuant to this
Agreement and (ii) all items of Partnership income and gain (including, without
limitation, income and gain exempt from tax) computed in accordance with Section
5.5(b) and allocated with respect to such Partnership Interest pursuant to
Section 6.1, and decreased by (x) the amount of cash or Net Agreed Value of all
actual and deemed distributions of cash or property made with respect to such
Partnership Interest pursuant to this Agreement and (y) all items of Partnership
deduction and loss computed in accordance with Section 5.5(b) and allocated with
respect to such Partnership Interest pursuant to Section 6.1.

          (b) For purposes of computing the amount of any item of income, gain,
loss or deduction which is to be allocated pursuant to Article VI and is to be
reflected in the Partners' Capital Accounts, the determination, recognition and
classification of any such item shall be the same as its determination,
recognition and classification for federal income tax purposes (including,
without limitation, any method of depreciation, cost recovery or amortization
used for that purpose), provided, that:

          (i) Solely for purposes of this Section 5.5, the Partnership shall be
     treated as owning directly its proportionate share (as determined by the
     General Partner) of all property 

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                                      -20-

 
     owned by any OLP Subsidiary that is classified as a partnership for federal
     income tax purposes.

          (ii)  All fees and other expenses incurred by the Partnership to
     promote the sale of (or to sell) a Partnership Interest that can neither be
     deducted nor amortized under Section 709 of the Code, if any, shall, for
     purposes of Capital Account maintenance, be treated as an item of deduction
     at the time such fees and other expenses are incurred and shall be
     allocated among the Partners pursuant to Section 6.1.

          (iii)  Except as otherwise provided in Treasury Regulation Section
     1.704-1(b)(2)(iv)(m), computation of all items of income, gain, loss and
     deduction shall be made without regard to any election under Section 754 of
     the Code which may be made by the Partnership and, as to those items
     described in Section 705(a)(1)(B) or 705(a)(2)(B) of the Code, without
     regard to the fact that such items are not includable in gross income or
     are neither currently deductible nor capitalized for federal income tax
     purposes. To the extent an adjustment to the adjusted tax basis of any
     Partnership asset pursuant to Section 734(b) or 743(b) of the Code is
     required, pursuant to Treasury Regulation Section 1.704-1(b)(2)(iv)(m), to
     be taken into account in determining Capital Accounts, the amount of such
     adjustment in the Capital Accounts shall be treated as an item of gain or
     loss.

          (iv)  Any income, gain or loss attributable to the taxable disposition
     of any Partnership property shall be determined as if the adjusted basis of
     such property as of such date of disposition were equal in amount to the
     Partnership's Carrying Value with respect to such property as of such date.

          (v) In accordance with the requirements of Section 704(b) of the Code,
     any deductions for depreciation, cost recovery or amortization attributable
     to any Contributed Property shall be determined as if the adjusted basis of
     such property on the date it was acquired by the Partnership were equal to
     the Agreed Value of such property. Upon an adjustment pursuant to Section
     5.5(d) to the Carrying Value of any Partnership property subject to
     depreciation, cost recovery or amortization, any further deductions for
     such depreciation, cost recovery or amortization attributable to such
     property shall be determined (A) as if the adjusted basis of such property
     were equal to the Carrying Value of such property immediately following
     such adjustment and (B) using a rate of depreciation, cost recovery or
     amortization derived from the same method and useful life (or, if
     applicable, the remaining useful life) as is applied for federal income tax
     purposes; provided, however, that, if the asset has a zero adjusted basis
     for federal income tax purposes, depreciation, cost recovery or
     amortization derived from the same method and useful life (or, if
     applicable, the remaining useful life) as is applied for federal income tax
     purposes; provided, however, that, if the asset has a zero adjusted basis
     for federal income tax purposes, depreciation, cost recovery or
     amortization deductions shall be determined using any reasonable method
     that the General Partner may adopt.

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                                      -21-

 
          (vi)  If the Partnership's adjusted basis in a depreciable or cost
     recovery property is reduced for federal income tax purposes pursuant to
     Section 48(q)(1) or 48(q)(3) of the Code, the amount of such reduction
     shall, solely for purposes hereof, be deemed to be an additional
     depreciation or cost recovery deduction in the year such property is placed
     in service and shall be allocated among the Partners pursuant to Section
     6.1. Any restoration of such basis pursuant to Section 48(q)(2) of the Code
     shall, to the extent possible, be allocated in the same manner to the
     Partners to whom such deemed deduction was allocated.

          (c) A transferee of a Partnership Interest shall succeed to a pro rata
portion of the Capital Account of the transferor relating to the Partnership
Interest so transferred.

          (d)  (i)  In accordance with Treasury Regulation Section 1.704-
     1(b)(2)(iv)(f), on an issuance of additional Partnership Interests for cash
     or Contributed Property or the conversion of the General Partner's
     Partnership Interest to Common Units pursuant to Section 11.3(a), the
     Capital Accounts of all Partners and the Carrying Value of each Partnership
     property immediately prior to such issuance shall be adjusted upward or
     downward to reflect any Unrealized Gain or Unrealized Loss attributable to
     such Partnership property, as if such Unrealized Gain or Unrealized Loss
     had been recognized on an actual sale of each such property immediately
     prior to such issuance and had been allocated to the Partners at such time
     pursuant to Section 6.1 in the same manner as any item of gain or loss
     actually recognized during such period would have been allocated. In
     determining such Unrealized Gain or Unrealized Loss, the aggregate cash
     amount and fair market value of all Partnership assets (including, without
     limitation, cash or cash equivalents) immediately prior to the issuance of
     additional Partnership Interests shall be determined by the General Partner
     using such reasonable method of valuation as it may adopt; provided,
     however, that the General Partner, in arriving at such valuation, must take
     fully into account the fair market value of the Partnership Interests of
     all Partners at such time. The General Partner shall allocate such
     aggregate value among the assets of the Partnership (in such manner as it
     determines in its discretion to be reasonable) to arrive at a fair market
     value for individual properties.

               (ii) In accordance with Treasury Regulation Section 1.704-
     1(b)(2)(iv)(f), immediately prior to any actual or deemed distribution to a
     Partner of any Partnership property (other than a distribution of cash that
     is not in redemption or retirement of a Partnership Interest), the Capital
     Accounts of all Partners and the Carrying Value of all Partnership property
     shall be adjusted upward or downward to reflect any Unrealized Gain or
     Unrealized Loss attributable to such Partnership property, as if such
     Unrealized Gain or Unrealized Loss had been recognized in a sale of such
     property immediately prior to such distribution for an amount equal to its
     fair market value, and had been allocated to the Partners, at such time,
     pursuant to Section 6.1 in the same manner as any item of gain or loss
     actually recognized during such period would have been allocated. In
     determining such Unrealized Gain or Unrealized Loss the aggregate cash
     amount and fair market value of all Partnership assets (including, without
     limitation, cash or cash equivalents) immediately prior 

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                                      -22-

 
     to a distribution shall (A) in the case of an actual distribution which is
     not made pursuant to Section 12.4 or in the case of a deemed contribution
     and/or distribution occurring as a result of a termination of the
     Partnership pursuant to Section 708 of the Code, be determined and
     allocated in the same manner as that provided in Section 5.5(d)(i) or (B)
     in the case of a liquidating distribution pursuant to Section 12.4, be
     determined and allocated by the Liquidator using such reasonable method of
     valuation as it may adopt.

Section 5.6   Loans from Partners.

     Loans by a Partner to the Partnership shall not constitute Capital
Contributions.  If any Partner shall advance funds to the Partnership in excess
of the amounts required hereunder to be contributed by it to the capital of the
Partnership, the making of such excess advances shall not result in any increase
in the amount of the Capital Account of such Partner.  The amount of any such
excess advances shall be a debt obligation of the Partnership to such Partner
and shall be payable or collectible only out of the Partnership assets in
accordance with the terms and conditions upon which such advances are made.

Section 5.7   Limited Preemptive Rights.

     Except as provided in Section 5.3, no Person shall have preemptive,
preferential or other similar rights with respect to (a) additional Capital
Contributions; (b) issuance or sale of any class or series of Partnership
Interests, whether unissued, held in the treasury or hereafter created; (c)
issuance of any obligations, evidences of indebtedness or other securities of
the Partnership convertible into or exchangeable for, or carrying or accompanied
by any rights to receive, purchase or subscribe to, any such Partnership
Interests; (d) issuance of any right of subscription to or right to receive, or
any warrant or option for the purchase of, any such Partnership Interests; or
(e) issuance or sale of any other securities that may be issued or sold by the
Partnership.

Section 5.8   Fully Paid and Non-Assessable Nature of Partnership Interests.

     All Partnership Interests issued to Limited Partners pursuant to, and in
accordance with the requirements of, this Article V shall be fully paid and non-
assessable Partnership Interests, except as such non-assessability may be
affected by Section 6.07 of the Texas Act.


                                  ARTICLE VI
                         ALLOCATIONS AND DISTRIBUTIONS

Section 6.1   Allocations for Capital Account Purposes.

     For purposes of maintaining the Capital Accounts and in determining the
rights of the Partners among themselves, the Partnership's items of income,
gain, loss and deduction (computed in accordance with Section 5.5(b)) shall be
allocated among the Partners in each taxable year (or portion thereof) as
provided herein below.

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          (a) Net Income.   After giving effect to the special allocations set
forth in Section 6.1(d), Net Income for each taxable year and all items of
income, gain, loss and deduction taken into account in computing Net Income for
such taxable year shall be allocated among the Partners as follows:

          (i) First, 100% to the General Partner, until the aggregate Net Income
     allocated to the General Partner pursuant to this Section 6.1(a)(i) for the
     current taxable year and all previous taxable years is equal to the
     aggregate Net Losses allocated to the General Partner pursuant to Section
     6.1(b)(ii) for all previous taxable years;

          (ii)  Second, .001% to the General Partner and 99.999% to the Limited
     Partners in accordance with their respective Percentage Interests.

          (b) Net Losses.  After giving effect to the special allocations set
forth in Section 6.1(d), Net Losses for each taxable period and all items of
income, gain, loss and deduction taken into account in computing Net Losses for
such taxable period shall be allocated among the Partners as follows:

          (i) First, .001% to the General Partner and 99.999% to the Limited
     Partners, in accordance with their respective Percentage Interests;
     provided, however, that Net Losses shall not be allocated to a Limited
     Partner pursuant to this Section 6.1(b)(i) to the extent that such
     allocation would cause a Limited Partner to have a deficit balance in its
     Adjusted Capital Account at the end of such taxable year (or increase any
     existing deficit balance in such Limited Partners's Adjusted Capital
     Account);

          (ii)  Second, the balance, if any, 100% to the General Partner.

          (c) Net Termination Gains and Losses.  After giving effect to the
special allocations set forth in Section 6.1(d), all items of income, gain, loss
and deduction taken into account in computing Net Termination Gain or Net
Termination Loss for such taxable period shall be allocated in the same manner
as such Net Termination Gain or Net Termination Loss is allocated hereunder.
All allocations under this Section 6.1(c) shall be made after Capital Account
balances have been adjusted by all other allocations provided under this Section
6.1 and after all distributions of Available Cash provided under Section 6.4
have been made with respect to the taxable period ending on or before the
Liquidation Date; provided, however, that solely for purposes of this Section
6.1(c), Capital Accounts shall not be adjusted for distributions made pursuant
to Section 12.4.

               (i) If a Net Termination Gain is recognized (or deemed recognized
     pursuant to Section 5.5(d)), such Net Termination Gain shall be allocated
     among the Partners in the following manner (and the Capital Accounts of the
     Partners shall be increased by the amount so allocated in each of the
     following subclauses, in the order listed, before an allocation is made
     pursuant to the next succeeding subclause):

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                                      -24-

 
               (A) First, to each Partner having a deficit balance in its
          Capital Account, in the proportion that such deficit balance bears to
          the total deficit balances in the Capital Accounts of all Partners,
          until each such Partner has been allocated Net Termination Gain equal
          to any such deficit balance in its Capital Account; and

               (B) Second, .001% to the General Partner and 99.999% to the
          Limited Partners, in accordance with their respective Percentage
          Interests.

               (ii)  If a Net Termination Loss is recognized (or deemed
     recognized pursuant to Section 5.5(d)), such Net Termination Loss shall be
     allocated among the Partners in the following manner:

               (A) First, to the General Partner and the Limited Partners in
          proportion to, and to the extent of, the positive balances in their
          respective Capital Accounts; and

               (B) Second, the balance, if any, 100% to the General Partner.

          (d) Special Allocations.   Notwithstanding any other provision of this
Section 6.1, the following special allocations shall be made for such taxable
period:

          (i) Partnership Minimum Gain Chargeback.   Notwithstanding any other
     provision of this Section 6.1, if there is a net decrease in Partnership
     Minimum Gain during any Partnership taxable period, each Partner shall be
     allocated items of Partnership income and gain for such period (and, if
     necessary, subsequent periods) in the manner and amounts provided in
     Treasury Regulation Sections 1.704-2(f)(6), 1.704-2(g)(2) and 1.704-
     2(j)(2)(i), or any successor provision. For purposes of this Section
     6.1(d), each Partner's Adjusted Capital Account balance shall be
     determined, and the allocation of income or gain required hereunder shall
     be effected, prior to the application of any other allocations pursuant to
     this Section 6.1(d) with respect to such taxable period (other than an
     allocation pursuant to Sections 6.1(d)(v) and 6.1(d)(vi)). This Section
     6.1(d)(i) is intended to comply with the Partnership Minimum Gain
     chargeback requirement in Treasury Regulation Section 1.704-2(f) and shall
     be interpreted consistently therewith.

          (ii)  Chargeback of Partner Nonrecourse Debt Minimum Gain.
     Notwithstanding the other provisions of this Section 6.1 (other than
     Section 6.1(d)(i)), except as provided in Treasury Regulation Section
     1.704-2(i)(4), if there is a net decrease in Partner Nonrecourse Debt
     Minimum Gain during any Partnership taxable period, any Partner with a
     share of Partner Nonrecourse Debt Minimum Gain at the beginning of such
     taxable period shall be allocated items of Partnership income and gain for
     such period (and, if necessary, subsequent periods) in the manner and
     amounts provided in Treasury Regulation Sections 1.704-2(i)(4) and 1.704-
     2(j)(2)(ii), or any successor provisions. For purposes of this Section
     6.1(d), each Partner's Adjusted Capital Account balance shall be
     determined, and the allocation of income or gain required hereunder shall
     be effected, prior to the application of any other allocations 

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                                      -25-

 
     pursuant to this Section 6.1(d), other than Section 6.1(d)(i) and other
     than an allocation pursuant to Sections 6.1(d)(v) and 6.1(d)(vi), with
     respect to such taxable period. This Section 6.1(d)(ii) is intended to
     comply with the chargeback of items of income and gain requirement in
     Treasury Regulation Section 1.704-2(i)(4) and shall be interpreted
     consistently therewith.

          (iii)  Qualified Income Offset.   In the event any Partner 
     unexpectedly receives any adjustments, allocations or distributions
     described in Treasury Regulation Sections 1.704-1(b)(2)(ii)(d)(4), 
     1.704-1(b)(2)(ii)(d)(5), or 1.704-1(b)(2)(ii)(d)(6), items of Partnership
     income and gain shall be specially allocated to such Partner in an amount
     and manner sufficient to eliminate, to the extent required by the Treasury
     Regulations promulgated under Section 704(b) of the Code, the deficit
     balance, if any, in its Adjusted Capital Account created by such
     adjustments, allocations or distributions as quickly as possible unless
     such deficit balance is otherwise eliminated pursuant to Section 6.1(d)(i)
     or (ii).

          (iv)  Gross Income Allocations.   In the event any Partner has a
     deficit balance in its Capital Account at the end of any Partnership
     taxable period in excess of the sum of (A) the amount such Partner is
     required to restore pursuant to the provisions of this Agreement and (B)
     the amount such Partner is deemed obligated to restore pursuant to Treasury
     Regulation Sections 1.704-2(g) and 1.704-2(i)(5), such Partner shall be
     specially allocated items of Partnership gross income and gain in the
     amount of such excess as quickly as possible; provided, that an allocation
     pursuant to this Section 6.1(d)(iv) shall be made only if and to the extent
     that such Partner would have a deficit balance in its Capital Account as
     adjusted after all other allocations provided for in this Section 6.1 have
     been tentatively made as if this Section 6.1(d)(iv) were not in this
     Agreement.

          (v) Nonrecourse Deductions.   Nonrecourse Deductions for any taxable
     period shall be allocated to the Partners in accordance with their
     respective Percentage Interests. If the General Partner determines in its
     good faith discretion that the Partnership's Nonrecourse Deductions must be
     allocated in a different ratio to satisfy the safe harbor requirements of
     the Treasury Regulations promulgated under Section 704(b) of the Code, the
     General Partner is authorized, upon notice to the other Partners, to revise
     the prescribed ratio to the numerically closest ratio that does satisfy
     such requirements.

          (vi)  Partner Nonrecourse Deductions.   Partner Nonrecourse Deductions
     for any taxable period shall be allocated 100% to the Partner that bears
     the Economic Risk of Loss with respect to the Partner Nonrecourse Debt to
     which such Partner Nonrecourse Deductions are attributable in accordance
     with Treasury Regulation Section 1.704-2(i). If more than one Partner bears
     the Economic Risk of Loss with respect to a Partner Nonrecourse Debt, such
     Partner Nonrecourse Deductions attributable thereto shall be allocated
     between or among such Partners in accordance with the ratios in which they
     share such Economic Risk of Loss.

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                                      -26-

 
          (vii)  Nonrecourse Liabilities.   For purposes of Treasury Regulation
     Section 1.752-3(a)(3), the Partners agree that Nonrecourse Liabilities of
     the Partnership in excess of the sum of (A) the amount of Partnership
     Minimum Gain and (B) the total amount of Nonrecourse Built-in Gain shall be
     allocated among the Partners in accordance with their respective Percentage
     Interests.

          (viii)  Code Section 754 Adjustments.   To the extent an adjustment to
     the adjusted tax basis of any Partnership asset pursuant to Section 734(b)
     or 743(c) of the Code is required, pursuant to Treasury Regulation Section
     1.704-1(b)(2)(iv)(m), to be taken into account in determining Capital
     Accounts, the amount of such adjustment to the Capital Accounts shall be
     treated as an item of gain (if the adjustment increases the basis of the
     asset) or loss (if the adjustment decreases such basis), and such item of
     gain or loss shall be specially allocated to the Partners in a manner
     consistent with the manner in which their Capital Accounts are required to
     be adjusted pursuant to such Section of the Treasury Regulations.

          (ix)  Curative Allocation.

               (A) Notwithstanding any other provision of this Section 6.1,
          other than the Required Allocations, the Required Allocations shall be
          taken into account in making the Agreed Allocations so that, to the
          extent possible, the net amount of items of income, gain, loss and
          deduction allocated to each Partner pursuant to the Required
          Allocations and the Agreed Allocations, together, shall be equal to
          the net amount of such items that would have been allocated to each
          such Partner under the Agreed Allocations had the Required Allocations
          and the related Curative Allocation not otherwise been provided in
          this Section 6.1. Notwithstanding the preceding sentence, Required
          Allocations relating to (1) Nonrecourse Deductions shall not be taken
          into account except to the extent that there has been a decrease in
          Partnership Minimum Gain and (2) Partner Nonrecourse Deductions shall
          not be taken into account except to the extent that there has been a
          decrease in Partner Nonrecourse Debt Minimum Gain. Allocations
          pursuant to this Section 6.1(d)(ix)(A) shall only be made with respect
          to Required Allocations to the extent the General Partner reasonably
          determines that such allocations will otherwise be inconsistent with
          the economic agreement among the Partners. Further, allocations
          pursuant to this Section 6.1(d)(ix)(A) shall be deferred with respect
          to allocations pursuant to clauses (1) and (2) hereof to the extent
          the General Partner reasonably determines that such allocations are
          likely to be offset by subsequent Required Allocations.

               (B) The General Partner shall have reasonable discretion, with
          respect to each taxable period, to (1) apply the provisions of Section
          6.1(d)(ix)(A) in whatever order is most likely to minimize the
          economic distortions that might otherwise result from the Required
          Allocations, and (2) divide all allocations pursuant to Section
          6.1(d)(ix)(A) among the Partners in a manner that is likely to
          minimize such economic distortions.

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                                      -27-

 
Section 6.2   Allocations for Tax Purposes.

          (a) Except as otherwise provided herein, for federal income tax
purposes, each item of income, gain, loss and deduction shall be allocated among
the Partners in the same manner as its correlative item of "book" income, gain,
loss or deduction is allocated pursuant to Section 6.1.

          (b) In an attempt to eliminate Book-Tax Disparities attributable to a
Contributed Property or Adjusted Property, items of income, gain, loss,
depreciation, amortization and cost recovery deductions shall be allocated for
federal income tax purposes among the Partners as follows:

          (i) (A) In the case of a Contributed Property, such items attributable
     thereto shall be allocated among the Partners in the manner provided under
     Section 704(c) of the Code that takes into account the variation between
     the Agreed Value of such property and its adjusted basis at the time of
     contribution; and (B) any item of Residual Gain or Residual Loss
     attributable to a Contributed Property shall be allocated among the
     Partners in the same manner as its correlative item of "book" gain or loss
     is allocated pursuant to Section 6.1.

          (ii) (A) In the case of an Adjusted Property, such items shall (1)
     first, be allocated among the Partners in a manner consistent with the
     principles of Section 704(c) of the Code to take into account the
     Unrealized Gain or Unrealized Loss attributable to such property and the
     allocations thereof pursuant to Section 5.5(d)(i) or 5.5(d)(ii), and (2)
     second, in the event such property was originally a Contributed Property,
     be allocated among the Partners in a manner consistent with Section
     6.2(b)(i)(A); and (B) any item of Residual Gain or Residual Loss
     attributable to an Adjusted Property shall be allocated among the Partners
     in the same manner as its correlative item of "book" gain or loss is
     allocated pursuant to Section 6.1.

          (iii) The General Partner shall apply the principles of Treasury
     Regulation Section 1.704-3(d) to eliminate Book-Tax Disparities.

          (c) For the proper administration of the Partnership and for the
preservation of uniformity of the Units or other limited partner interests of
the MLP (or any class or classes thereof), the General Partner shall have sole
discretion to (i) adopt such conventions as it deems appropriate in determining
the amount of depreciation, amortization and cost recovery deductions; (ii) make
special allocations for federal income tax purposes of income (including,
without limitation, gross income) or deductions; and (iii) amend the provisions
of this Agreement as appropriate (x) to reflect the proposal or promulgation of
Treasury Regulations under Section 704(b) or Section 704(c) of the Code or (y)
otherwise to preserve or achieve uniformity of the Units or other limited
partner interests of the MLP (or any class or classes thereof). The General
Partner may adopt such conventions, make such allocations and make such
amendments to this Agreement as provided in this Section 6.2(c) only if such
conventions, allocations or amendments would not have a material adverse effect
on the Partners, the holders of any class or classes of Units or other limited
partner interests of the MLP 

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                                      -28-

 
issued and outstanding or the Partnership and if such allocations are consistent
with the principles of Section 704 of the Code.

          (d) The General Partner in its discretion may determine to depreciate
or amortize the portion of an adjustment under Section 743(b) of the Code
attributable to unrealized appreciation in any Adjusted Property (to the extent
of the unamortized Book-Tax Disparity) using a predetermined rate derived from
the depreciation or amortization method and useful life applied to the
Partnership's common basis of such property, despite any inconsistency of such
approach with Proposed Treasury Regulation Section 1.168-2(n), Treasury
Regulation Section 1.167(c)-l(a)(6) or the legislative history of Section 197 of
the Code. If the General Partner determines that such reporting position cannot
reasonably be taken, the General Partner may adopt depreciation and amortization
conventions under which all purchasers acquiring limited partner interests of
the MLP in the same month would receive depreciation and amortization
deductions, based upon the same applicable rate as if they had purchased a
direct interest in the Partnership's property. If the General Partner chooses
not to utilize such aggregate method, the General Partner may use any other
reasonable depreciation and amortization conventions to preserve the uniformity
of the intrinsic tax characteristics of any limited partner interests of the MLP
that would not have a material adverse effect on the Partners or the holders of
any class or classes of limited partner interests of the MLP.

          (e) Any gain allocated to the Partners upon the sale or other taxable
disposition of any Partnership asset shall, to the extent possible, after taking
into account other required allocations of gain pursuant to this Section 6.2, be
characterized as Recapture Income in the same proportions and to the same extent
as such Partners (or their predecessors in interest) have been allocated any
deductions directly or indirectly giving rise to the treatment of such gains as
Recapture Income.

          (f) All items of income, gain, loss, deduction and credit recognized
by the Partnership for federal income tax purposes and allocated to the Partners
in accordance with the provisions hereof shall be determined without regard to
any election under Section 754 of the Code which may be made by the Partnership;
provided, however, that such allocations, once made, shall be adjusted as
necessary or appropriate to take into account those adjustments permitted or
required by Sections 734 and 743 of the Code.

          (g) The General Partner may adopt such methods of allocation of
income, gain, loss or deduction between a transferor and a transferee of a
Partnership Interest as it determines necessary, to the extent permitted or
required by Section 706 of the Code and the regulations or rulings promulgated
thereunder.

          (h) Allocations that would otherwise be made to a Partner under the
provisions of this Article VI shall instead be made to the beneficial owner of
Partnership Interests held by a nominee in any case in which the nominee has
furnished the identity of such owner to the Partnership in accordance with
Section 6031(c) of the Code or any other method acceptable to the General
Partner in its sole discretion.

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                                      -29-

 
Section 6.3   Distributions.

          (a) Within 45 days following the end of each Quarter commencing with
the Quarter ending on December 31, 1998, an amount equal to 100% of Available
Cash with respect to such Quarter shall, subject to Section 6.07 of the Texas
Act, be distributed in accordance with this Article VI by the Partnership to the
Partners in accordance with their respective Percentage Interests. The
immediately preceding sentence shall not require any distribution of cash if and
to the extent such distribution would be prohibited by applicable law or by any
loan agreement, security agreement, mortgage, debt instrument or other agreement
or obligation to which the Partnership is a party or by which it is bound or its
assets are subject.  All distributions required to be made under this Agreement
shall be made subject to Section 6.07 of the Texas Act.

          (b) In the event of the dissolution and liquidation of the
Partnership, all receipts received during or after the Quarter in which the
Liquidation Date occurs, other than from borrowings described in (a)(ii) of the
definition of Available Cash, shall be applied and distributed solely in
accordance with, and subject to the terms and conditions of, Section 12.4.

          (c) The General Partner shall have the discretion to treat taxes paid
by the Partnership on behalf of, or amounts withheld with respect to, all or
less than all of the Partners, as a distribution of Available Cash to such
Partners.

                                  ARTICLE VII
                     MANAGEMENT AND OPERATION OF BUSINESS

Section 7.1   Management.

          (a) The General Partner shall conduct, direct and manage all
activities of the Partnership. Except as otherwise expressly provided in this
Agreement, all management powers over the business and affairs of the
Partnership shall be exclusively vested in the General Partner, and no Limited
Partner or Assignee shall have any management power over the business and
affairs of the Partnership. In addition to the powers now or hereafter granted a
general partner of a limited partnership under applicable law or which are
granted to the General Partner under any other provision of this Agreement, the
General Partner, subject to Section 7.3, shall have full power and authority to
do all things and on such terms as it, in its sole discretion, may deem
necessary or appropriate to conduct the business of the Partnership, to exercise
all powers set forth in Section 2.5 and to effectuate the purposes set forth in
Section 2.4, including the following:

          (i) the making of any expenditures, the lending or borrowing of money,
     the assumption or guarantee of, or other contracting for, indebtedness and
     other liabilities, the issuance of evidences of indebtedness, including
     indebtedness that is convertible into a Partnership Interest, and the
     incurring of any other obligations;

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                                      -30-

 
          (ii) the making of tax, regulatory and other filings, or rendering of
     periodic or other reports to governmental or other agencies having
     jurisdiction over the business or assets of the Partnership;

          (iii) the acquisition, disposition, mortgage, pledge, encumbrance,
     hypothecation or exchange of any or all of the assets of the Partnership or
     the merger or other combination of the Partnership with or into another
     Person (the matters described in this clause (iii) being subject, however,
     to any prior approval that may be required by Section 7.3);

          (iv) the use of the assets of the Partnership (including cash on hand)
     for any purpose consistent with the terms of this Agreement, including the
     financing of the conduct of the operations of the Partnership Group,
     subject to Section 7.6, the lending of funds to other Persons (including
     the MLP and any Member of the Partnership Group), the repayment of
     obligations of the MLP or any member of the Partnership Group and the
     making of capital contributions to any member of the Partnership Group;

          (v) the negotiation, execution and performance of any contracts,
     conveyances or other instruments (including instruments that limit the
     liability of the Partnership under contractual arrangements to all or
     particular assets of the Partnership, with the other party to the contract
     to have no recourse against the General Partner or its assets other than
     its interest in the Partnership, even if same results in the terms of the
     transaction being less favorable to the Partnership than would otherwise be
     the case);

          (vi) the distribution of Partnership cash;

          (vii) the selection and dismissal of employees (including employees
     having titles such as "president," "vice president," "secretary" and
     "treasurer") and agents, outside attorneys, accountants, consultants and
     contractors and the determination of their compensation and other terms of
     employment or hiring;

          (viii) the maintenance of such insurance for the benefit of the
     Partnership Group and the Partners as it deems necessary or appropriate;

          (ix) the formation of, or acquisition of an interest in, and the
     contribution of property and the making of loans to, any further limited or
     general partnerships, joint ventures, corporations or other relationships
     subject to the restrictions set forth in Section 2.4;

          (x) the control of any matters affecting the rights and obligations of
     the Partnership, including the bringing and defending of actions at law or
     in equity and otherwise engaging in the conduct of litigation and the
     incurring of legal expense and the settlement of claims and litigation; and

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                                      -31-

 
          (xi) the indemnification of any Person against liabilities and
     contingencies to the extent permitted by law.

          (b) Notwithstanding any other provision of this Agreement, the MLP
Agreement, the Texas Act or any applicable law, rule or regulation, each of the
Partners and Assignees and each other Person who may acquire an interest in the
Partnership hereby (i) approves, ratifies and confirms the execution, delivery
and performance by the parties thereto of the Partnership Agreement, the MLP
Agreement, the Underwriting Agreement, the Omnibus Agreement, the Contribution
and Conveyance Agreement and the other agreements and documents described in or
filed as exhibits to the Registration Statement that are related to the
transactions contemplated by the Registration Statement; (ii) agrees that the
General Partner (on its own or through any officer of the Partnership) is
authorized to execute, deliver and perform the agreements referred to in clause
(i) of this sentence and the other agreements, acts, transactions and matters
described in or contemplated by the Registration Statement on behalf of the
Partnership without any further act, approval or vote of the Partners or the
Assignees or the other Persons who may acquire an interest in the Partnership;
and (iii) agrees that the execution, delivery or performance by the General
Partner, the MLP, any Group Member or any Affiliate of any of them, of this
Agreement or any agreement authorized or permitted under this Agreement
(including the exercise by the General Partner or any Affiliate of the General
Partner of the rights accorded pursuant to Article XV), shall not constitute a
breach by the General Partner of any duty that the General Partner may owe the
Partnership or the Limited Partners or any other Persons under this Agreement
(or any other agreements) or of any duty stated or implied by law or equity.

Section 7.2   Certificate of Limited Partnership.

     The Certificate of Limited Partnership has been filed with the Secretary of
State of the State of Texas as required by the Texas Act and the General Partner
shall use all reasonable efforts to cause to be filed such other certificates or
documents as may be determined by the General Partner in its sole discretion to
be reasonable and necessary or appropriate for the formation, continuation,
qualification and operation of a limited partnership (or a partnership in which
the limited partners have limited liability) in the State of Texas or any other
state in which the Partnership may elect to do business or own property. To the
extent that such action is determined by the General Partner in its sole
discretion to be reasonable and necessary or appropriate, the General Partner
shall file amendments to and restatements of the Certificate of Limited
Partnership and do all things to maintain the Partnership as a limited
partnership (or a partnership or other entity in which the limited partners have
limited liability) under the laws of the State of Texas or of any other state in
which the Partnership may elect to do business or own property. Subject to the
terms of Section 3.4(a), the General Partner shall not be required, before or
after filing, to deliver or mail a copy of the Certificate of Limited
Partnership, any qualification document or any amendment thereto to any Limited
Partner or Assignee.

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Section 7.3   Restrictions on General Partner's Authority.

          (a) The General Partner may not, without written approval of the
specific act by the Limited Partners or by other written instrument executed and
delivered by the Limited Partners subsequent to the date of this Agreement, take
any action in contravention of this Agreement, including, except as otherwise
provided in this Agreement, (i) committing any act that would make it impossible
to carry on the ordinary business of the Partnership; (ii) possessing
Partnership property, or assigning any rights in specific Partnership property,
for other than a Partnership purpose; (iii) admitting a Person as a Partner;
(iv) amending this Agreement in any manner or (v) transferring its General
Partner Interest.

          (b) Except as provided in Articles XII and XIV, the General Partner
may not sell, exchange or otherwise dispose of all or substantially all of the
Partnership's assets in a single transaction or a series of related transactions
(including by way of merger, consolidation or other combination) or approve on
behalf of the Partnership the sale, exchange or other disposition of all or
substantially all of the assets of the Partnership, without the approval of the
Limited Partners; provided however that this provision shall not preclude or
limit the General Partner's ability to mortgage, pledge, hypothecate or grant a
security interest in all or substantially all of the assets of the Partnership
and shall not apply to any forced sale of any or all of the assets of the
Partnership pursuant to the foreclosure of, or other realization upon, any such
encumbrance. Without the approval of at least a Unit Majority, the General
Partner shall not, on behalf of the MLP, (i) consent to any amendment to this
Agreement or, except as expressly permitted by Section 7.9(d) of the MLP
Agreement, take any action permitted to be taken by a Partner, in either case,
that would have a material adverse effect on the MLP as a Partner or (ii) except
as permitted under Sections 4.6, 11.1 and 11.2 of the MLP Agreement, elect or
cause the MLP to elect a successor general partner of the Partnership.

Section 7.4   Reimbursement of the General Partner.

          (a) Except as provided in this Section 7.4 and elsewhere in this
Agreement or in the MLP Agreement, the General Partner shall not be compensated
for its services as General Partner, general partner of the MLP or as general
partner of any Group Member.

          (b) The General Partner shall be reimbursed on a monthly basis, or
such other reasonable basis as the General Partner may determine in its sole
discretion, for (i) all direct and indirect expenses it incurs or payments it
makes on behalf of the Partnership (including salary, bonus, incentive
compensation and other amounts paid to any Person including Affiliates of the
General Partner to perform services for the Partnership or for the General
Partner in the discharge of its duties to the Partnership), and (ii) all other
necessary or appropriate expenses allocable to the Partnership or otherwise
reasonably incurred by the General Partner in connection with operating the
Partnership's business (including expenses allocated to the General Partner by
its Affiliates). The General Partner shall determine the expenses that are
allocable to the Partnership in any reasonable manner determined by the General
Partner in its sole discretion. Reimbursements pursuant to this 

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                                      -33-

 
Section 7.4 shall be in addition to any reimbursement to the General Partner as
a result of indemnification pursuant to Section 7.7.

          (c) Subject to Section 5.7, the General Partner, in its sole
discretion and without the approval of the Limited Partners (who shall have no
right to vote in respect thereof), may propose and adopt on behalf of the
Partnership employee benefit plans, employee programs and employee practices, or
cause the Partnership to issue Partnership Interests, in connection with,
pursuant to any employee benefit plan, employee program or employee practice
maintained or sponsored by the General Partner or any of its Affiliates, in each
case for the benefit of employees of the General Partner any Group Member or any
Affiliate, or any of them, in respect of services performed, directly or
indirectly, for the benefit of the Partnership Group. Expenses incurred by the
General Partner in connection with any such plans, programs and practices shall
be reimbursed in accordance with Section 7.4(b). Any and all obligations of the
General Partner under any employee benefit plans, employee programs or employee
practices adopted by the General Partner as permitted by this Section 7.4(c)
shall constitute obligations of the General Partner hereunder and shall be
assumed by any successor General Partner approved pursuant to Section 11.1 or
11.2 or the transferee of or successor to all of the General Partner's General
Partner Interest pursuant to Section 4.2.

Section 7.5   Outside Activities.

          (a) After the Closing Date, the General Partner, for so long as it is
the General Partner of the Partnership (i) agrees that its sole business will be
to act as the General Partner of the Partnership, the general partner of the
MLP, and a general partner of any other partnership of which the Partnership or
the MLP is, directly or indirectly, a partner and to undertake activities that
are ancillary or related thereto (including being a limited partner in the MLP),
(ii) shall not engage in any business or activity or incur any debts or
liabilities except in connection with or incidental to (A) its performance as
general partner of the Partnership, the MLP or one or more Group Members or as
described in or contemplated by the Registration Statement or (B) the acquiring,
owning or disposing of debt or equity securities in any Group Member and (iii)
except to the extent permitted in the Omnibus Agreement, shall not, and shall
cause its Affiliates not to, engage in any Restricted Business.

          (b) The Omnibus Agreement, to which the Partnership is a party, sets
forth certain restrictions on the ability of Plains Resources Inc. to engage in
Restricted Businesses.

          (c) Except as specifically restricted by Section 7.5(a) and the
Omnibus Agreement, each Indemnitee (other than the General Partner) shall have
the right to engage in businesses of every type and description and other
activities for profit and to engage in and possess an interest in other business
ventures of any and every type or description, whether in businesses engaged in
or anticipated to be engaged in by the MLP or any Group Member, independently or
with others, including business interests and activities in direct competition
with the business and activities of the MLP or any Group Member, and none of the
same shall constitute a breach of this Agreement or any duty express or implied
by law to the MLP or any Group Member or any Partner or Assignee. Neither the
MLP nor any Group Member, any Limited Partner, nor any other Person shall have
any rights by 

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                                      -34-

 
virtue of this Agreement, the MLP Agreement or the partnership relationship
established hereby or thereby in any business ventures of any Indemnitee.

          (d) Subject to the terms of Section 7.5(a), Section 7.5(b), Section
7.5(c) and the Omnibus Agreement, but otherwise notwithstanding anything to the
contrary in this Agreement, (i) the engaging in competitive activities by any
Indemnitees (other than the General Partner) in accordance with the provisions
of this Section 7.5 is hereby approved by the Partnership and all Partners, (ii)
it shall be deemed not to be a breach of the General Partner's fiduciary duty or
any other obligation of any type whatsoever of the General Partner for the
Indemnitees (other than the General Partner) to engage in such business
interests and activities in preference to or to the exclusion of the Partnership
and (iii) except as set forth in the Omnibus Agreement, the General Partner and
the Indemnities shall have no obligation to present business opportunities to
the Partnership.

          (e) The General Partner and any of its Affiliates may acquire Units or
other MLP Securities in addition to those acquired on the Closing Date and,
except as otherwise provided in this Agreement, shall be entitled to exercise
all rights relating to such Units or MLP Securities.

          (f) The term "Affiliates" when used in Section 7.5(a) and Section
7.5(e) with respect to the General Partner shall not include any Group Member or
any Subsidiary of the MLP or any Group Member.

          (g) Anything in this Agreement to the contrary notwithstanding, to the
extent that provisions of Sections 7.7, 7.8, 7.9, 7.10 or other Sections of this
Agreement purport or are interpreted to have the effect of restricting the
fiduciary duties that might otherwise, as a result of Texas or other applicable
law, be owed by the General Partner to the Partnership and its Limited Partners,
or to constitute a waiver or consent by the Limited Partners to any such
restriction, such provisions shall be inapplicable and have no effect in
determining whether the General Partner has complied with its fiduciary duties
in connection with determinations made by it under this Section 7.5.

 Section 7.6  Loans from the General Partner; Loans or Contributions from the
              Partnership; Contracts with Affiliates; Certain Restrictions on
              the General Partner.

          (a) The General Partner or its Affiliates may lend to the MLP or any
Group Member, and the MLP or any Group Member may borrow from the General
Partner or any of its Affiliates, funds needed or desired by the MLP or the
Group Member for such periods of time and in such amounts as the General Partner
may determine; provided, however, that in any such case the lending party may
not charge the borrowing party interest at a rate greater than the rate that
would be charged the borrowing party or impose terms less favorable to the
borrowing party than would be charged or imposed on the borrowing party by
unrelated lenders on comparable loans made on an arm's-length basis (without
reference to the lending party's financial abilities or guarantees). The
borrowing party shall reimburse the lending party for any costs (other than any
additional interest costs) incurred by the lending party in connection with the
borrowing of such funds. For purposes 

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                                      -35-

 
of this Section 7.6(a) and Section 7.6(b), the term "Group Member" shall include
any Affiliate of a Group Member that is controlled by the Group Member. No Group
Member may lend funds to the General Partner or any of its Affiliates (other
than the MLP, a Subsidiary of the MLP or a Subsidiary of another Group Member).

          (b) The Partnership may lend or contribute to any Group Member, and
any Group Member may borrow from the Partnership, funds on terms and conditions
established in the sole discretion of the General Partner; provided, however,
that the Partnership may not charge the Group Member interest at a rate less
than the rate that would be charged to the Group Member (without reference to
the General Partner's financial abilities or guarantees) by unrelated lenders on
comparable loans. The foregoing authority shall be exercised by the General
Partner in its sole discretion and shall not create any right or benefit in
favor of any Group Member or any other Person.

          (c) The General Partner may itself, or may enter into an agreement
with any of its Affiliates to, render services to a Group Member or to the
General Partner in the discharge of its duties as general partner of the
Partnership. Any services rendered to a Group Member by the General Partner or
any of its Affiliates shall be on terms that are fair and reasonable to the
Partnership; provided, however, that the requirements of this Section 7.6(c)
shall be deemed satisfied as to (i) any transaction approved by Special
Approval, (ii) any transaction, the terms of which are no less favorable to the
Partnership Group than those generally being provided to or available from
unrelated third parties or (iii) any transaction that, taking into account the
totality of the relationships between the parties involved (including other
transactions that may be particularly favorable or advantageous to the
Partnership Group), is equitable to the Partnership Group. The provisions of
Section 7.4 shall apply to the rendering of services described in this Section
7.6(c).

          (d) The Partnership Group may transfer assets to joint ventures, other
partnerships, corporations, limited liability companies or other business
entities in which it is or thereby becomes a participant upon such terms and
subject to such conditions as are consistent with this Agreement and applicable
law.

          (e) Neither the General Partner nor any of its Affiliates shall sell,
transfer or convey any property to, or purchase any property from, the
Partnership, directly or indirectly, except pursuant to transactions that are
fair and reasonable to the Partnership; provided, however, that the requirements
of this Section 7.6(e) shall be deemed to be satisfied as to (i) the
transactions effected pursuant to Sections 5.2 and 5.3, the Contribution and
Conveyance Agreement and any other transactions described in or contemplated by
the Registration Statement, (ii) any transaction approved by Special Approval,
(iii) any transaction, the terms of which are no less favorable to the
Partnership than those generally being provided to or available from unrelated
third parties, or (iv) any transaction that, taking into account the totality of
the relationships between the parties involved (including other transactions
that may be particularly favorable or advantageous to the Partnership), is
equitable to the Partnership.

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                                      -36-

 
          (f) The General Partner and its Affiliates will have no obligation to
permit any Group Member to use any facilities or assets of the General Partner
and its Affiliates, except as may be provided in contracts entered into from
time to time specifically dealing with such use, nor shall there be any
obligation on the part of the General Partner or its Affiliates to enter into
such contracts.

          (g) Without limitation of Sections 7.6(a) through 7.6(f), and
notwithstanding anything to the contrary in this Agreement, the existence of the
conflicts of interest described in the Registration Statement are hereby
approved by all Partners.

Section 7.7   Indemnification.

          (a) To the fullest extent permitted by law but subject to the
limitations expressly provided in this Agreement, all Indemnitees shall be
indemnified and held harmless by the Partnership from and against any and all
losses, claims, damages, liabilities, joint or several, expenses (including
legal fees and expenses), judgments, fines, penalties, interest, settlements or
other amounts arising from any and all claims, demands, actions, suits or
proceedings, whether civil, criminal, administrative or investigative, in which
any Indemnitee may be involved, or is threatened to be involved, as a party or
otherwise, by reason of its status as an Indemnitee; provided, that in each case
the Indemnitee acted in good faith and in a manner that such Indemnitee
reasonably believed to be in, or (in the case of a Person other than the General
Partner) not opposed to, the best interests of the Partnership and, with respect
to any criminal proceeding, had no reasonable cause to believe its conduct was
unlawful; provided, further, no indemnification pursuant to this Section 7.7
shall be available to the General Partner with respect to its obligations
incurred pursuant to the Underwriting Agreement or the Contribution and
Conveyance Agreement (other than obligations incurred by the General Partner on
behalf of the MLP or the Partnership). The termination of any action, suit or
proceeding by judgment, order, settlement, conviction or upon a plea of nolo
contendere, or its equivalent, shall not create a presumption that the
Indemnitee acted in a manner contrary to that specified above. Any
indemnification pursuant to this Section 7.7 shall be made only out of the
assets of the Partnership, it being agreed that the General Partner shall not be
personally liable for such indemnification and shall have no obligation to
contribute or loan any monies or property to the Partnership to enable it to
effectuate such indemnification.

          (b) To the fullest extent permitted by law, expenses (including legal
fees and expenses) incurred by an Indemnitee who is indemnified pursuant to
Section 7.7(a) in defending any claim, demand, action, suit or proceeding shall,
from time to time, be advanced by the Partnership prior to the final disposition
of such claim, demand, action, suit or proceeding upon receipt by the
Partnership of any undertaking by or on behalf of the Indemnitee to repay such
amount if it shall be determined that the Indemnitee is not entitled to be
indemnified as authorized in this Section 7.7.

          (c) The indemnification provided by this Section 7.7 shall be in
addition to any other rights to which an Indemnitee may be entitled under any
agreement, pursuant to any vote of the Partners, as a matter of law or
otherwise, both as to actions in the Indemnitee's capacity as an Indemnitee and
as to actions in any other capacity (including any capacity under the
Underwriting 

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                                      -37-

 
Agreement), and shall continue as to an Indemnitee who has ceased to serve in
such capacity and shall inure to the benefit of the heirs, successors, assigns
and administrators of the Indemnitee.

          (d) The Partnership may purchase and maintain (or reimburse the
General Partner or its Affiliates for the cost of) insurance, on behalf of the
General Partner, its Affiliates and such other Persons as the General Partner
shall determine, against any liability that may be asserted against or expense
that may be incurred by such Person in connection with the Partnership's
activities or such Person's activities on behalf of the Partnership, regardless
of whether the Partnership would have the power to indemnify such Person against
such liability under the provisions of this Agreement.

          (e) For purposes of this Section 7.7, the Partnership shall be deemed
to have requested an Indemnitee to serve as fiduciary of an employee benefit
plan whenever the performance by it of its duties to the Partnership also
imposes duties on, or otherwise involves services by, it to the plan or
participants or beneficiaries of the plan; excise taxes assessed on an
Indemnitee with respect to an employee benefit plan pursuant to applicable law
shall constitute "fines" within the meaning of Section 7.7(a); and action taken
or omitted by it with respect to any employee benefit plan in the performance of
its duties for a purpose reasonably believed by it to be in the interest of the
participants and beneficiaries of the plan shall be deemed to be for a purpose
which is in, or not opposed to, the best interests of the Partnership.

          (f) In no event may an Indemnitee subject the Limited Partners to
personal liability by reason of the indemnification provisions set forth in this
Agreement.

          (g) An Indemnitee shall not be denied indemnification in whole or in
part under this Section 7.7 because the Indemnitee had an interest in the
transaction with respect to which the indemnification applies if the transaction
was otherwise permitted by the terms of this Agreement.

          (h) The provisions of this Section 7.7 are for the benefit of the
Indemnitees, their heirs, successors, assigns and administrators and shall not
be deemed to create any rights for the benefit of any other Persons.

          (i) No amendment, modification or repeal of this Section 7.7 or any
provision hereof shall in any manner terminate, reduce or impair the right of
any past, present or future Indemnitee to be indemnified by the Partnership, nor
the obligations of the Partnership to indemnify any such Indemnitee under and in
accordance with the provisions of this Section 7.7 as in effect immediately
prior to such amendment, modification or repeal with respect to claims arising
from or relating to matters occurring, in whole or in part, prior to such
amendment, modification or repeal, regardless of when such claims may arise or
be asserted.

Section 7.8   Liability of Indemnitees.

          (a) Notwithstanding anything to the contrary set forth in this
Agreement, no Indemnitee shall be liable for monetary damages to the
Partnership, the Limited Partners, the 

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                                      -38-

 
Assignees or any other Persons who have acquired interests in the Units or other
Partnership Securities of the MLP, for losses sustained or liabilities incurred
as a result of any act or omission if such Indemnitee acted in good faith.

          (b) Subject to its obligations and duties as General Partner set forth
in Section 7.1(a), the General Partner may exercise any of the powers granted to
it by this Agreement and perform any of the duties imposed upon it hereunder
either directly or by or through its agents, and the General Partner shall not
be responsible for any misconduct or negligence on the part of any such agent
appointed by the General Partner in good faith.

          (c) To the extent that, at law or in equity, an Indemnitee has duties
(including fiduciary duties) and liabilities relating thereto to the Partnership
or to the Limited Partners, the General Partner and any other Indemnitee acting
in connection with the Partnership's business or affairs shall not be liable to
the Partnership or to any Partner for its good faith reliance on the provisions
of this Agreement. The provisions of this Agreement, to the extent that they
restrict or otherwise modify the duties and liabilities of an Indemnitee
otherwise existing at law or in equity, are agreed by the Partners to replace
such other duties and liabilities of such Indemnitee.

          (d) Any amendment, modification or repeal of this Section 7.8 or any
provision hereof shall be prospective only and shall not in any way affect the
limitations on the liability to the Partnership, the Limited Partners, the
General Partner, and the Partnership's and General Partner's directors, officers
and employees under this Section 7.8 as in effect immediately prior to such
amendment, modification or repeal with respect to claims arising from or
relating to matters occurring, in whole or in part, prior to such amendment,
modification or repeal, regardless of when such claims may arise or be asserted.

Section 7.9   Resolution of Conflicts of Interest.

          (a) Unless otherwise expressly provided in this Agreement or the MLP
Agreement, whenever a potential conflict of interest exists or arises between
the General Partner or any of its Affiliates, on the one hand, and the
Partnership, the MLP, any Partner or any Assignee, on the other, any resolution
or course of action by the General Partner or its Affiliates in respect of such
conflict of interest shall be permitted and deemed approved by all Partners, and
shall not constitute a breach of this Agreement of the MLP Agreement, of any
agreement contemplated herein or therein, or of any duty stated or implied by
law or equity, if the resolution or course of action is, or by operation of this
Agreement is deemed to be, fair and reasonable to the Partnership. The General
Partner shall be authorized but not required in connection with its resolution
of such conflict of interest to seek Special Approval of such resolution. Any
conflict of interest and any resolution of such conflict of interest shall be
conclusively deemed fair and reasonable to the Partnership if such conflict of
interest or resolution is (i) approved by Special Approval (as long as the
material facts known to the General Partner or any of its Affiliates regarding
any proposed transaction were disclosed to the Conflicts Committee at the time
it gave its approval), (ii) on terms no less favorable to the Partnership than
those generally being provided to or available from unrelated third parties or

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                                      -39-

 
(iii) fair to the Partnership, taking into account the totality of the
relationships between the parties involved (including other transactions that
may be particularly favorable or advantageous to the Partnership). The General
Partner may also adopt a resolution or course of action that has not received
Special Approval. The General Partner (including the Conflicts Committee in
connection with Special Approval) shall be authorized in connection with its
determination of what is "fair and reasonable" to the Partnership and in
connection with its resolution of any conflict of interest to consider (A) the
relative interests of any party to such conflict, agreement, transaction or
situation and the benefits and burdens relating to such interest; (B) any
customary or accepted industry practices and any customary or historical
dealings with a particular Person; (C) any applicable generally accepted
accounting practices or principles; and (D) such additional factors as the
General Partner (including the Conflicts Committee) determines in its sole
discretion to be relevant, reasonable or appropriate under the circumstances.
Nothing contained in this Agreement, however, is intended to nor shall it be
construed to require the General Partner (including the Conflicts Committee) to
consider the interests of any Person other than the Partnership. In the absence
of bad faith by the General Partner, the resolution, action or terms so made,
taken or provided by the General Partner with respect to such matter shall not
constitute a breach of this Agreement or any other agreement contemplated herein
or a breach of any standard of care or duty imposed herein or therein or, to the
extent permitted by law, under the Texas Act or any other law, rule or
regulation.

          (b) Whenever this Agreement or any other agreement contemplated hereby
provides that the General Partner or any of its Affiliates is permitted or
required to make a decision (i) in its "sole discretion" or "discretion," that
it deems "necessary or appropriate" or "necessary or advisable" or under a grant
of similar authority or latitude, except as otherwise provided herein, the
General Partner or such Affiliate shall be entitled to consider only such
interests and factors as it desires and shall have no duty or obligation to give
any consideration to any interest of, or factors affecting, the Partnership, the
MLP, any Limited Partner or any Assignee, (ii) it may make such decision in its
sole discretion (regardless of whether there is a reference to "sole discretion"
or "discretion") unless another express standard is provided for, or (iii) in
"good faith" or under another express standard, the General Partner or such
Affiliate shall act under such express standard and shall not be subject to any
other or different standards imposed by this Agreement, the MLP Agreement, any
other agreement contemplated hereby or under the Texas Act or any other law,
rule or regulation. In addition, any actions taken by the General Partner or
such Affiliate consistent with the standards of "reasonable discretion" set
forth in the definition of Available Cash shall not constitute a breach of any
duty of the General Partner to the Partnership or the Limited Partners. The
General Partner shall have no duty, express or implied, to sell or otherwise
dispose of any asset of the Partnership Group other than in the ordinary course
of business. No borrowing by any Group Member or the approval thereof by the
General Partner shall be deemed to constitute a breach of any duty of the
General Partner to the Partnership or the Limited Partners by reason of the fact
that the purpose or effect of such borrowing is directly or indirectly to (A)
enable distributions to the General Partner or its Affiliates to exceed .001% of
the total amount distributed to all Partners or (B) hasten the expiration of the
Subordination Period or the conversion of any Subordinated Units into Common
Units.

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                                      -40-

 
          (c) Whenever a particular transaction, arrangement or resolution of a
conflict of interest is required under this Agreement to be "fair and
reasonable" to any Person, the fair and reasonable nature of such transaction,
arrangement or resolution shall be considered in the context of all similar or
related transactions.

          (d) The Limited Partner hereby authorizes the General Partner, on
behalf of the Partnership as a partner or member of a Group Member, to approve
of actions by the general partner of such Group Member similar to those actions
permitted to be taken by the General Partner pursuant to this Section 7.9.

Section 7.10   Other Matters Concerning the General Partner.

          (a) The General Partner may rely and shall be protected in acting or
refraining from acting upon any resolution, certificate, statement, instrument,
opinion, report, notice, request, consent, order, bond, debenture or other paper
or document believed by it to be genuine and to have been signed or presented by
the proper party or parties.

          (b) The General Partner may consult with legal counsel, accountants,
appraisers, management consultants, investment bankers and other consultants and
advisers selected by it, and any act taken or omitted to be taken in reliance
upon the opinion (including an Opinion of Counsel) of such Persons as to matters
that the General Partner reasonably believes to be within such Person's
professional or expert competence shall be conclusively presumed to have been
done or omitted in good faith and in accordance with such opinion.

          (c) The General Partner shall have the right, in respect of any of its
powers or obligations hereunder, to act through any of its duly authorized
officers, a duly appointed attorney or attorneys-in-fact or the duly authorized
officers of the Partnership.

          (d) Any standard of care and duty imposed by this Agreement or under
the Texas Act or any applicable law, rule or regulation shall be modified,
waived or limited, to the extent permitted by law, as required to permit the
General Partner to act under this Agreement or any other agreement contemplated
by this Agreement and to make any decision pursuant to the authority prescribed
in this Agreement, so long as such action is reasonably believed by the General
Partner to be in, or not inconsistent with, the best interests of the
Partnership.

Section 7.11   Reliance by Third Parties.

     Notwithstanding anything to the contrary in this Agreement, any Person
dealing with the Partnership shall be entitled to assume that the General
Partner and any officer of the General Partner authorized by the General Partner
to act on behalf of and in the name of the Partnership has full power and
authority to encumber, sell or otherwise use in any manner any and all assets of
the Partnership and to enter into any authorized contracts on behalf of the
Partnership, and such Person shall be entitled to deal with the General Partner
or any such officer as if it were the Partnership's sole 

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                                      -41-

 
party in interest, both legally and beneficially. Each Limited Partner hereby
waives any and all defenses or other remedies that may be available against such
Person to contest, negate or disaffirm any action of the General Partner or any
such officer in connection with any such dealing. In no event shall any Person
dealing with the General Partner or any such officer or its representatives be
obligated to ascertain that the terms of the Agreement have been complied with
or to inquire into the necessity or expedience of any act or action of the
General Partner or any such officer or its representatives. Each and every
certificate, document or other instrument executed on behalf of the Partnership
by the General Partner or its representatives shall be conclusive evidence in
favor of any and every Person relying thereon or claiming thereunder that (a) at
the time of the execution and delivery of such certificate, document or
instrument, this Agreement was in full force and effect, (b) the Person
executing and delivering such certificate, document or instrument was duly
authorized and empowered to do so for and on behalf of the Partnership and (c)
such certificate, document or instrument was duly executed and delivered in
accordance with the terms and provisions of this Agreement and is binding upon
the Partnership.

                                 ARTICLE VIII
                    BOOKS, RECORDS, ACCOUNTING AND REPORTS

Section 8.1   Records and Accounting.

     The General Partner shall keep or cause to be kept at the principal office
of the Partnership appropriate books and records with respect to the
Partnership's business, including all books and records necessary to provide to
the Limited Partners any information required to be provided pursuant to Section
3.4(a). Any books and records maintained by or on behalf of the Partnership in
the regular course of its business, including books of account and records of
Partnership proceedings, may be kept on, or be in the form of, computer disks,
hard drives, punch cards, magnetic tape, photographs, micrographics or any other
information storage device; provided, that the books and records so maintained
are convertible into clearly legible written form within a reasonable period of
time. The books of the Partnership shall be maintained, for financial reporting
purposes, on an accrual basis in accordance with U.S. GAAP.

Section 8.2   Fiscal Year.

     The fiscal year of the Partnership shall be a fiscal year ending December
31.

                                  ARTICLE IX
                                  TAX MATTERS

Section 9.1   Tax Returns and Information.

     The Partnership shall timely file all returns of the Partnership that are
required for federal, state and local income tax purposes on the basis of the
accrual method and a taxable year ending on December 31. The tax information
reasonably required by the Partners for federal and state income 

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                                      -42-

 
tax reporting purposes with respect to a taxable year shall be furnished to them
within 90 days of the close of the calendar year in which the Partnership's
taxable year ends. The classification, realization and recognition of income,
gain, losses and deductions and other items shall be on the accrual method of
accounting for federal income tax purposes.

Section 9.2   Tax Elections.

          (a) The Partnership shall make the election under Section 754 of the
Code in accordance with applicable regulations thereunder, subject to the
reservation of the right to seek to revoke any such election upon the General
Partner's determination that such revocation is in the best interests of the
Limited Partners.

          (b) The Partnership shall elect to deduct expenses incurred in
organizing the Partnership ratably over a sixty-month period as provided in
Section 709 of the Code.

          (c) Except as otherwise provided herein, the General Partner shall
determine whether the Partnership should make any other elections permitted by
the Code.

Section 9.3   Tax Controversies.

     Subject to the provisions hereof, the General Partner is designated as the
Tax Matters Partner (as defined in the Code) and is authorized and required to
represent the Partnership (at the Partnership's expense) in connection with all
examinations of the Partnership's affairs by tax authorities, including
resulting administrative and judicial proceedings, and to expend Partnership
funds for professional services and costs associated therewith. Each Partner
agrees to cooperate with the General Partner and to do or refrain from doing any
or all things reasonably required by the General Partner to conduct such
proceedings.

Section 9.4   Withholding.

     Notwithstanding any other provision of this Agreement, the General Partner
is authorized to take any action that it determines in its discretion to be
necessary or appropriate to cause the Partnership to comply with any withholding
requirements established under the Code or any other federal, state or local law
including, without limitation, pursuant to Sections 1441, 1442, 1445 and 1446 of
the Code. To the extent that the Partnership is required or elects to withhold
and pay over to any taxing authority any amount resulting from the allocation or
distribution of income to any Partner or Assignee (including, without
limitation, by reason of Section 1446 of the Code), the amount withheld may at
the discretion of the General Partner be treated by the Partnership as a
distribution of cash pursuant to Section 6.3 in the amount of such withholding
from such Partner.

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                                   ARTICLE X
                             ADMISSION OF PARTNERS

Section 10.1  Admission of Partners.

     Upon the consummation of the transfers and conveyances described in Section
5.2, the General Partner shall be the sole general partner of the Partnership
and the MLP shall be the sole limited partner of the Partnership.

Section 10.2  Admission of Substituted Limited Partner.

     By transfer of a Limited Partner Interest in accordance with Article IV,
the transferor shall be deemed to have given the transferee the right to seek
admission as a Substituted Limited Partner subject to the conditions of, and in
the manner permitted under, this Agreement. A transferor of a Limited Partner
Interest shall, however, only have the authority to convey to a purchaser or
other transferee (a) the right to negotiate such Limited Partner Interest to a
purchaser or other transferee and (b) the right to request admission as a
Substituted Limited Partner to such purchaser or other transferee in respect of
the transferred Limited Partner Interests. Each transferee of a Limited Partner
Interest shall be an Assignee and be deemed to have applied to become a
Substituted Limited Partner with respect to the Limited Partner Interests so
transferred to such Person. Such Assignee shall become a Substituted Limited
Partner (x) at such time as the General Partner consents thereto, which consent
may be given or withheld in the General Partner's discretion, and (y) when any
such admission is shown on the books and records of the Partnership. If such
consent is withheld, such transferee shall remain an Assignee. An Assignee shall
have an interest in the Partnership equivalent to that of a Limited Partner with
respect to allocations and distributions, including liquidating distributions,
of the Partnership. With respect to voting rights attributable to Limited
Partner Interests that are held by Assignees, the General Partner shall be
deemed to be the Limited Partner with respect thereto and shall, in exercising
the voting rights in respect of such Limited Partner Interests on any matter,
vote such Limited Partner Interests at the written direction of the Assignee. If
no such written direction is received, such Partnership Interests will not be
voted. An Assignee shall have no other rights of a Limited Partner.

 Section 10.3  Admission of Additional Limited Partners.

          (a) A Person (other than the General Partner, the MLP or a Substituted
Limited Partner) who makes a Capital Contribution to the Partnership in
accordance with this Agreement shall be admitted to the Partnership as an
Additional Limited Partner only upon furnishing to the General Partner (i)
evidence of acceptance in form satisfactory to the General Partner of all of the
terms and conditions of this Agreement, including the power of attorney granted
in Section 2.6, and (ii) such other documents or instruments as may be required
in the discretion of the General Partner to effect such Person's admission as an
Additional Limited Partner.

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          (b) Notwithstanding anything to the contrary in this Section 10.3, no
Person shall be admitted as an Additional Limited Partner without the consent of
the General Partner, which consent may be given or withheld in the General
Partner's discretion. The admission of any Person as an Additional Limited
Partner shall become effective on the date upon which the name of such Person is
recorded as such in the books and records of the Partnership, following the
consent of the General Partner to such admission.

Section 10.4  Admission of Successor or Transferee General Partner.

     A successor General Partner approved pursuant to Section 11.1 or 11.2 or
the transferee of or successor to all of the General Partner's Partnership
Interest pursuant to Section 4.2 who is proposed to be admitted as a successor
General Partner shall, subject to compliance with the terms of Section 11.3, if
applicable, be admitted to the Partnership as the General Partner, effective
immediately prior to the withdrawal or removal of the predecessor or
transferring General Partner pursuant to Section 11.1 or 11.2 or the transfer of
the General Partner Interest pursuant to Section 4.2, provided, however, that no
such successor shall be admitted to the Partnership until compliance with the
terms of Section 4.2 has occurred and such successor has executed and delivered
such other documents or instruments as may be required to effect such admission.
Any such successor shall, subject to the terms hereof, carry on the business of
the members of the Partnership Group without dissolution.

 Section 10.5  Amendment of Agreement and Certificate of Limited Partnership.

     To effect the admission to the Partnership of any Partner, the General
Partner shall take all steps necessary and appropriate under the Texas Act to
amend the records of the Partnership to reflect such admission and, if
necessary, to prepare as soon as practicable an amendment to this Agreement and,
if required by law, the General Partner shall prepare and file an amendment to
the Certificate of Limited Partnership, and the General Partner may for this
purpose, among others, exercise the power of attorney granted pursuant to
Section 2.6.

                                  ARTICLE XI
                       WITHDRAWAL OR REMOVAL OF PARTNERS

Section 11.1  Withdrawal of the General Partner.

          (a) The General Partner shall be deemed to have withdrawn from the
Partnership upon the occurrence of any one of the following events (each such
event herein referred to as an "Event of Withdrawal");

          (i) The General Partner voluntarily withdraws from the Partnership by
     giving written notice to the other Partners;

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                                      -45-

 
          (ii) The General Partner transfers all of its rights as General
     Partner pursuant to Section 4.2;

         (iii) The General Partner is removed pursuant to Section 11.2;

          (iv) The General Partner withdraws from, or is removed as the General
     Partner of, the MLP;

          (v)  The General Partner (A) makes a general assignment for the 
     benefit of creditors; (B) files a voluntary bankruptcy petition for relief
     under Chapter 7 of the United States Bankruptcy Code; (C) files a petition
     or answer seeking for itself a liquidation, dissolution or similar relief
     (but not a reorganization) under any law; (D) files an answer or other
     pleading admitting or failing to contest the material allegations of a
     petition filed against the General Partner in a proceeding of the type
     described in clauses (A)-(C) of this Section 11.1(a)(v); or (E) seeks,
     consents to or acquiesces in the appointment of a trustee (but not a debtor
     in possession), receiver or liquidator of the General Partner or of all or
     any substantial part of its properties;

          (vi) A final and non-appealable order of relief under Chapter 7 of the
     United States Bankruptcy Code is entered by a court with appropriate
     jurisdiction pursuant to a voluntary or involuntary petition by or against
     the General Partner; or

          (vii) (A) in the event the General Partner is a corporation, a
     certificate of dissolution or its equivalent is filed for the General
     Partner, or 90 days expire after the date of notice to the General Partner
     of revocation of its charter without a reinstatement of its charter, under
     the laws of its state of incorporation; (B) in the event the General
     Partner is a partnership or limited liability company, the dissolution and
     commencement of winding up of the General Partner; (C) in the event the
     General Partner is acting in such capacity by virtue of being a trustee of
     a trust, the termination of the trust; (D) in the event the General Partner
     is a natural person, his death or adjudication of incompetency; and (E)
     otherwise in the event of the termination of the General Partner.

     If an Event of Withdrawal specified in Section 11.1(a)(iv)(with respect to
withdrawal), (v), (vi) or (vii)(A), (B), (C) or (E) occurs, the withdrawing
General Partner shall give notice to the Limited Partners within 30 days after
such occurrence. The Partners hereby agree that only the Events of Withdrawal
described in this Section 11.1 shall result in the withdrawal of the General
Partner from the Partnership.

          (b) Withdrawal of the General Partner from the Partnership upon the
occurrence of an Event of Withdrawal shall not constitute a breach of this
Agreement under the following circumstances: (i) at any time during the period
beginning on the Closing Date and ending at 12:00 midnight, Eastern Standard
Time, on December 31, 2008, the General Partner voluntarily withdraws by giving
at least 90 days' advance notice of its intention to withdraw to the Limited

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                                      -46-

 
Partners; provided that prior to the effective date of such withdrawal, the
withdrawal is approved by the Limited Partners and the General Partner delivers
to the Partnership an Opinion of Counsel ("Withdrawal Opinion of Counsel") that
such withdrawal (following the selection of the successor General Partner) would
not result in the loss of the limited liability of any Limited Partner or of the
limited partners of the MLP or cause the Partnership or the MLP to be treated as
an association taxable as a corporation or otherwise to be taxed as an entity
for federal income tax purposes (to the extent not previously treated as such);
(ii) at any time after 12:00 midnight, Eastern Standard Time, on December 31,
2008, the General Partner voluntarily withdraws by giving at least 90 days'
advance notice to the Limited Partners, such withdrawal to take effect on the
date specified in such notice; (iii) at any time that the General Partner ceases
to be the General Partner pursuant to Section 11.1(a)(ii), (iii) or (iv).  If
the General Partner gives a notice of withdrawal pursuant to Section 11.1(a)(i)
hereof or Section 11.1(a)(i) of the MLP Agreement, the Limited Partners may,
prior to the effective date of such withdrawal, elect a successor General
Partner; provided, however, that such successor shall be the same person, if
any, that is elected by the limited partners of the MLP pursuant to Section 11.1
of the MLP Agreement as the successor to the general partner of the MLP. If,
prior to the effective date of the General Partner's withdrawal, a successor is
not selected by the Limited Partners as provided herein or the Partnership does
not receive a Withdrawal Opinion of Counsel, the Partnership shall be dissolved
in accordance with Section 12.1. Any successor General Partner elected in
accordance with the terms of this Section 11.1 shall be subject to the
provisions of Section 10.3.

Section 11.2  Removal of the General Partner.

     The General Partner shall be removed if the General Partner is removed as
the general partner of the MLP pursuant to Section 11.2 of the MLP Agreement.
Such removal shall be effective concurrently with the effectiveness of the
removal of the General Partner as the general partner of the MLP pursuant to the
terms of the MLP Agreement.  If a successor general partner for the MLP is
elected in connection with the removal of the General Partner, such successor
general partner for the MLP shall, upon admission pursuant to Article X,
automatically become the successor General Partner of the Partnership. The
admission of any such successor General Partner to the Partnership shall be
subject to the provisions of Section 10.3.

Section 11.3  Interest of Departing Partner.

          (a) The Partnership Interest of the Departing Partner departing as a
result of withdrawal or removal pursuant to Section 11.1 or 11.2 shall (unless
it is otherwise required to be converted into Common Units pursuant to Section
11.3(b) of the MLP Agreement) be purchased by the successor to the Departing
Partner for cash in the manner specified in the MLP Agreement.  Such purchase
(or conversion into Common Units, as applicable) shall be a condition to the
admission to the Partnership of the successor as the General Partner.  Any
successor General Partner shall indemnify the Departing Partner as to all debts
and liabilities of the Partnership arising on or after the effective date of the
withdrawal or removal of the Departing Partner.

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                                      -47-

 
          (b) The Departing Partner shall be entitled to receive all
reimbursements due such Departing Partner pursuant to Section 7.4, including any
employee-related liabilities (including severance liabilities), incurred in
connection with the termination of any employees employed by such Departing
Partner for the benefit of the Partnership.

Section 11.4  Withdrawal of a Limited Partner.

     Without the prior written consent of the General Partner, which may be
granted or withheld in its sole discretion, and except as provided in Section
10.1, no Limited Partner  shall have the right to withdraw from the Partnership.

                                  ARTICLE XII
                          DISSOLUTION AND LIQUIDATION

Section 12.1  Dissolution.

     The Partnership shall not be dissolved by the admission of Substituted
Limited Partners or Additional Limited Partners or by the admission of a
successor General Partner in accordance with the terms of this Agreement. Upon
the removal or withdrawal of the General Partner, if a successor General Partner
is elected pursuant to Section 11.1 or 11.2, the Partnership shall not be
dissolved and such successor General Partner shall continue the business of the
Partnership. The Partnership shall dissolve, and (subject to Section 12.2) its
affairs shall be wound up, upon:

          (a) the expiration of its term as provided in Section 2.7;

          (b) an Event of Withdrawal of the General Partner as provided in
Section 11.1(a) (other than Section 11.1(a)(ii)), unless a successor is elected
and an Opinion of Counsel is received as provided in Section 11.1(b) or 11.2 and
such successor is admitted to the Partnership pursuant to Section 10.3;

          (c) an election to dissolve the Partnership by the General Partner
that is approved by all of the Limited Partners;

          (d) the entry of a decree of judicial dissolution of the Partnership
pursuant to the provisions of the Texas Act;

          (e) the sale of all or substantially all of the assets and properties
of the Partnership Group; or

          (f)  the dissolution of the MLP.

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                                      -48-

 
Section 12.2  Continuation of the Business of the Partnership After
              Dissolution.

     Upon (a) dissolution of the Partnership following an Event of Withdrawal
caused by the withdrawal or removal of the General Partner as provided in
Section 11.1(a)(i) or (iii) and the failure of the Partners to select a
successor to such Departing Partner pursuant to Section 11.1 or 11.2, then
within 90 days thereafter, or (b) dissolution of the Partnership upon an event
constituting an Event of Withdrawal as defined in Section 11.1(a)(iv), (v) or
(vi) of the MLP Agreement, then, to the maximum extent permitted by law, within
180 days thereafter, all of the Limited Partners may elect to reconstitute the
Partnership and continue its business on the same terms and conditions set forth
in this Agreement by forming a new limited partnership on terms identical to
those set forth in this Agreement and having as a general partner a Person
approved by a majority in interest of the Limited Partners.  In addition, upon
dissolution of the Partnership pursuant to Section 12.1(f), if the MLP is
reconstituted pursuant to Section 12.2 of the MLP Agreement, the reconstituted
MLP may, within 180 days after such event of dissolution, acting alone,
regardless of whether there are any other Limited Partners, elect to
reconstitute the Partnership in accordance with the immediately preceding
sentence.  Upon any such election by the Limited Partners or the MLP, as the
case may be, all Partners shall be bound thereby and shall be deemed to have
approved same.  Unless such an election is made within the applicable time
period as set forth above, the Partnership shall conduct only activities
necessary to wind up its affairs.  If such an election is so made, then:

          (a) the reconstituted Partnership shall continue until the end of the
term set forth in Section 2.7 unless earlier dissolved in accordance with this
Article XII;

          (b) if the successor General Partner is not the former General
Partner, then the interest of the former General Partner shall be purchased by
the successor General Partner or converted into Common Units as provided in the
MLP Agreement; and

          (c) all necessary steps shall be taken to cancel this Agreement and
the Certificate of Limited Partnership and to enter into and, as necessary, to
file, a new partnership agreement and certificate of limited partnership, and
the successor General Partner may for this purpose exercise the power of
attorney granted the General Partner pursuant to Section 2.6; provided, that the
right to approve a successor General Partner and to reconstitute and to continue
the business of the Partnership shall not exist and may not be exercised unless
the Partnership has received an Opinion of Counsel that (x) the exercise of the
right would not result in the loss of limited liability of the Limited Partners
or any limited partner of the MLP and (y) neither the Partnership, the
reconstituted limited partnership, the MLP nor any Group Member would be treated
as an association taxable as a corporation or otherwise be taxable as an entity
for federal income tax purposes upon the exercise of such right to continue.

Section 12.3  Liquidator.

     Upon dissolution of the Partnership, unless the Partnership is continued
under an election to reconstitute and continue the Partnership pursuant to
Section 12.2, the General Partner shall select 

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                                      -49-

 
one or more Persons to act as Liquidator. The Liquidator (if other than the
General Partner) shall be entitled to receive such compensation for its services
as may be approved by a majority of the Limited Partners. The Liquidator (if
other than the General Partner) shall agree not to resign at any time without 15
days' prior notice and may be removed at any time, with or without cause, by
notice of removal approved by a majority in interest of the Limited Partners.
Upon dissolution, removal or resignation of the Liquidator, a successor and
substitute Liquidator (who shall have and succeed to all rights, powers and
duties of the original Liquidator) shall within 30 days thereafter be approved
by at least a majority in interest of the Limited Partners. The right to approve
a successor or substitute Liquidator in the manner provided herein shall be
deemed to refer also to any such successor or substitute Liquidator approved in
the manner herein provided. Except as expressly provided in this Article XII,
the Liquidator approved in the manner provided herein shall have and may
exercise, without further authorization or consent of any of the parties hereto,
all of the powers conferred upon the General Partner under the terms of this
Agreement (but subject to all of the applicable limitations, contractual and
otherwise, upon the exercise of such powers, other than the limitation on sale
set forth in Section 7.3(b)) to the extent necessary or desirable in the good
faith judgment of the Liquidator to carry out the duties and functions of the
Liquidator hereunder for and during such period of time as shall be reasonably
required in the good faith judgment of the Liquidator to complete the winding up
and liquidation of the Partnership as provided for herein.

Section 12.4  Liquidation.

     The Liquidator shall proceed to dispose of the assets of the Partnership,
discharge its liabilities, and otherwise wind up its affairs in such manner and
over such period as the Liquidator determines to be in the best interest of the
Partners, subject to Section 8.05 of the Texas Act and the following:

          (a) Disposition of Assets.   The assets may be disposed of by public
or private sale or by distribution in kind to one or more Partners on such terms
as the Liquidator and such Partner or Partners may agree. If any property is
distributed in kind, the Partner receiving the property shall be deemed for
purposes of Section 12.4(c) to have received cash equal to its fair market
value; and contemporaneously therewith, appropriate cash distributions must be
made to the other Partners. The Liquidator may, in its absolute discretion,
defer liquidation or distribution of the Partnership's assets for a reasonable
time if it determines that an immediate sale or distribution of all or some of
the Partnership's assets would be impractical or would cause undue loss to the
Partners. The Liquidator may, in its absolute discretion, distribute the
Partnership's assets, in whole or in part, in kind if it determines that a sale
would be impractical or would cause undue loss to the Partners.

          (b) Discharge of Liabilities.   Liabilities of the Partnership include
amounts owed to Partners otherwise than in respect of their distribution rights
under Article VI. With respect to any liability that is contingent, conditional
or unmatured or is otherwise not yet due and payable, the Liquidator shall
either settle such claim for such amount as it thinks appropriate or establish a
reserve of cash or other assets to provide for its payment. When paid, any
unused portion of the reserve shall be distributed as additional liquidation
proceeds.

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          (c) Liquidation Distributions.   All property and all cash in excess
of that required to discharge liabilities as provided in Section 12.4(b) shall
be distributed to the Partners in accordance with, and to the extent of, the
positive balances in their respective Capital Accounts, as determined after
taking into account all Capital Account adjustments (other than those made by
reason of distributions pursuant to this Section 12.4(c)) for the taxable year
of the Partnership during which the liquidation of the Partnership occurs (with
such date of occurrence being determined pursuant to Treasury Regulation Section
1.704-1(b)(2)(ii)(g)), and such distribution shall be made by the end of such
taxable year (or, if later, within 90 days after said date of such occurrence).

Section 12.5  Cancellation of Certificate of Limited Partnership.

     Upon the completion of the distribution of Partnership cash and property as
provided in Section 12.4 in connection with the liquidation of the Partnership,
the Partnership shall be terminated and the Certificate of Limited Partnership,
and all qualifications of the Partnership as a foreign limited partnership in
jurisdictions other than the State of Texas, shall be canceled and such other
actions as may be necessary to terminate the Partnership shall be taken.

 Section 12.6  Return of Contributions.

     The General Partner shall not be personally liable for, and shall have no
obligation to contribute or loan any monies or property to the Partnership to
enable it to effectuate, the return of the Capital Contributions of the Limited
Partners, or any portion thereof, it being expressly understood that any such
return shall be made solely from Partnership assets.

 Section 12.7  Waiver of Partition.

     To the maximum extent permitted by law, each Partner hereby waives any
right to partition of the Partnership property.

 Section 12.8  Capital Account Restoration.

     No Limited Partner shall have any obligation to restore any negative
balance in its Capital Account upon liquidation of the Partnership. The General
Partner shall be obligated to restore any negative balance in its Capital
Account upon liquidation of its interest in the Partnership by the end of the
taxable year of the Partnership during which such liquidation occurs, or, if
later, within 90 days after the date of such liquidation.

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                                 ARTICLE XIII
                      AMENDMENT OF PARTNERSHIP AGREEMENT

Section 13.1  Amendment to be Adopted Solely by the General Partner.

     Each Partner agrees that the General Partner, without the approval of any
Partner or Assignee, may amend any provision of this Agreement and execute,
swear to, acknowledge, deliver, file and record whatever documents may be
required in connection therewith, to reflect:

          (a) a change in the name of the Partnership, the location of the
principal place of business of the Partnership, the registered agent of the
Partnership or the registered office of the Partnership;

          (b) admission, substitution, withdrawal or removal of Partners in
accordance with this Agreement;

          (c) a change that, in the sole discretion of the General Partner, is
necessary or advisable to qualify or continue the qualification of the
Partnership as a limited partnership or a partnership in which the Limited
Partners have limited liability under the laws of any state or to ensure that no
Group Member will be treated as an association taxable as a corporation or
otherwise taxed as an entity for federal income tax purposes;

          (d) a change that, in the discretion of the General Partner, (i) does
not adversely affect the Limited Partners in any material respect, (ii) is
necessary or advisable to (A) satisfy any requirements, conditions or guidelines
contained in any opinion, directive, order, ruling or regulation of any federal
or state agency or judicial authority or contained in any federal or state
statute (including the Texas Act) or (B) facilitate the trading of limited
partner interests of the MLP (including the division of any class or classes of
outstanding limited partner interests of the MLP into different classes to
facilitate uniformity of tax consequences within such classes of limited partner
interests of the MLP) or comply with any rule, regulation, guideline or
requirement of any National Securities Exchange on which such limited partner
interests are or will be listed for trading, compliance with any of which the
General Partner determines in its discretion to be in the best interests of the
MLP and the limited partners of the MLP, (iii) is required to effect the intent
expressed in the Registration Statement or the intent of the provisions of this
Agreement or is otherwise contemplated by this Agreement or (iv) is required to
conform the provisions of this Agreement with the provisions of the MLP
Agreement as the provisions of the MLP Agreement may be amended, supplemented or
restated from time to time;

          (e) a change in the fiscal year or taxable year of the Partnership and
any changes that, in the discretion of the General Partner, are necessary or
advisable as a result of a change in the fiscal year or taxable year of the
Partnership including, if the General Partner shall so determine, a change in
the definition of "Quarter" and the dates on which distributions are to be made
by the Partnership;

          (f) an amendment that is necessary, in the Opinion of Counsel, to
prevent the Partnership, or the General Partner or its directors, officers,
trustees or agents from in any manner 

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                                      -52-

 
being subjected to the provisions of the Investment Company Act of 1940, as
amended, the Investment Advisers Act of 1940, as amended, or "plan asset"
regulations adopted under the Employee Retirement Income Security Act of 1974,
as amended, regardless of whether such are substantially similar to plan asset
regulations currently applied or proposed by the United States Department of
Labor;

          (g) any amendment expressly permitted in this Agreement to be made by
the General Partner acting alone;

          (h) an amendment effected, necessitated or contemplated by a Merger
Agreement approved in accordance with Section 14.3;

          (i) an amendment that, in the discretion of the General Partner, is
necessary or advisable to reflect, account for and deal with appropriately the
formation by the Partnership of, or investment by the Partnership in, any
corporation, partnership, joint venture, limited liability company or other
entity, in connection with the conduct by the Partnership of activities
permitted by the terms of Section 2.4;

          (j) a merger or conveyance pursuant to Section 14.3(d); or

          (k) any other amendments substantially similar to the foregoing.

Section 13.2  Amendment Procedures.

     Except with respect to amendments of the type described in Section 13.1,
all amendments to this Agreement shall be made in accordance with the following
requirements:  Amendments to this Agreement may be proposed only by or with the
consent of the General Partner which consent may be given or withheld in its
sole discretion.  A proposed amendment shall be effective upon its approval by
the Limited Partner.

 
                                  ARTICLE XIV
                                    MERGER

Section 14.1  Authority.

     The Partnership may merge or consolidate with one or more corporations,
limited liability companies, business trusts or associations, real estate
investment trusts, common law trusts or unincorporated businesses, including a
general partnership or limited partnership, formed under the laws of the State
of Texas or any other state of the United States of America, pursuant to a
written agreement of merger or consolidation ("Merger Agreement") in accordance
with this Article XIV.

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Section 14.2  Procedure for Merger or Consolidation.

     Merger or consolidation of the Partnership pursuant to this Article XIV
requires the prior approval of the General Partner. If the General Partner shall
determine, in the exercise of its discretion, to consent to the merger or
consolidation, the General Partner shall approve the Merger Agreement, which
shall set forth:

          (a) The names and jurisdictions of formation or organization of each
of the business entities proposing to merge or consolidate;

          (b) The name and jurisdiction of formation or organization of the
business entity that is to survive the proposed merger or consolidation (the
"Surviving Business Entity");

          (c) The terms and conditions of the proposed merger or consolidation;

          (d) The manner and basis of exchanging or converting the equity
securities of each constituent business entity for, or into, cash, property or
general or limited partner interests, rights, securities or obligations of the
Surviving Business Entity; and (i) if any general or limited partner interests,
securities or rights of any constituent business entity are not to be exchanged
or converted solely for, or into, cash, property or general or limited partner
interests, rights, securities or obligations of the Surviving Business Entity,
the cash, property or general or limited partner interests, rights, securities
or obligations of any limited partnership, corporation, trust or other entity
(other than the Surviving Business Entity) which the holders of such general or
limited partner interests, securities or rights are to receive in exchange for,
or upon conversion of their general or limited partner interests, securities or
rights, and (ii) in the case of securities represented by certificates, upon the
surrender of such certificates, which cash, property or general or limited
partner interests, rights, securities or obligations of the Surviving Business
Entity or any general or limited partnership, corporation, trust or other entity
(other than the Surviving Business Entity), or evidences thereof, are to be
delivered;

          (e) A statement of any changes in the constituent documents or the
adoption of new constituent documents (the articles or certificate of
incorporation, articles of trust, declaration of trust, certificate or agreement
of limited partnership or other similar charter or governing document) of the
Surviving Business Entity to be effected by such merger or consolidation;

          (f) The effective time of the merger, which may be the date of the
filing of the certificate of merger pursuant to Section 14.4 or a later date
specified in or determinable in accordance with the Merger Agreement (provided,
that if the effective time of the merger is to be later than the date of the
filing of the certificate of merger, the effective time shall be fixed no later
than the time of the filing of the certificate of merger and stated therein);
and

          (g) Such other provisions with respect to the proposed merger or
consolidation as are deemed necessary or appropriate by the General Partner.

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Section 14.3  Approval by Limited Partners of Merger or Consolidation.

          (a) Except as provided in Section 14.3(d), the General Partner, upon
its approval of the Merger Agreement, shall direct that the Merger Agreement be
submitted to a vote of the Limited Partners, whether at a special meeting or by
written consent, in either case in accordance with the requirements of Article
XIII. A copy or a summary of the Merger Agreement shall be included in or
enclosed with the notice of a special meeting or the written consent.

          (b) Except as provided in Section 14.3(d), the Merger Agreement shall
be approved upon receiving the affirmative vote or consent of the Limited
Partners.

          (c) Except as provided in Section 14.3(d), after such approval by vote
or consent of the Limited Partners, and at any time prior to the filing of the
certificate of merger pursuant to Section 14.4, the merger or consolidation may
be abandoned pursuant to provisions therefor, if any, set forth in the Merger
Agreement.

          (d) Notwithstanding anything else contained in this Article XIV or in
this Agreement, the General Partner is permitted, in its discretion, without
Limited Partner approval, to merge the Partnership or any Group Member into, or
convey all of the Partnership's assets to, another limited liability entity
which shall be newly formed and shall have no assets, liabilities or operations
at the time of such Merger other than those it receives from the Partnership or
other Group Member if (i) the General Partner has received an Opinion of Counsel
that the merger or conveyance, as the case may be, would not result in the loss
of the limited liability of any Limited Partner or any limited partner in the
MLP or cause the Partnership or the MLP to be treated as an association taxable
as a corporation or otherwise to be taxed as an entity for federal income tax
purposes (to the extent not previously treated as such), (ii) the sole purpose
of such merger or conveyance is to effect a mere change in the legal form of the
Partnership into another limited liability entity and (iii) the governing
instruments of the new entity provide the Limited Partners and the General
Partner with the same rights and obligations as are herein contained.

Section 14.4  Certificate of Merger.

     Upon the required approval by the General Partner and the Limited Partners
of a Merger Agreement, a certificate of merger shall be executed and filed with
the Secretary of State of the State of Texas in conformity with the requirements
of the Texas Act.

Section 14.5  Effect of Merger.

          (a) At the effective time of the certificate of merger:

          (i) all of the rights, privileges and powers of each of the business
     entities that has merged or consolidated, and all property, real, personal
     and mixed, and all debts due to any 

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     of those business entities and all other things and causes of action
     belonging to each of those business entities, shall be vested in the
     Surviving Business Entity and after the merger or consolidation shall be
     the property of the Surviving Business Entity to the extent they were of
     each constituent business entity;

          (ii)  the title to any real property vested by deed or otherwise in
     any of those constituent business entities shall not revert and is not in
     any way impaired because of the merger or consolidation;

          (iii) all rights of creditors and all liens on or security interests
     in property of any of those constituent business entities shall be
     preserved unimpaired; and

          (iv)  all debts, liabilities and duties of those constituent business
     entities shall attach to the Surviving Business Entity and may be enforced
     against it to the same extent as if the debts, liabilities and duties had
     been incurred or contracted by it.

          (b) A merger or consolidation effected pursuant to this Article shall
not be deemed to result in a transfer or assignment of assets or liabilities
from one entity to another.

                                  ARTICLE XV
                              GENERAL PROVISIONS

Section 15.1  Addresses and Notices.

     Any notice, demand, request, report or proxy materials required or
permitted to be given or made to a Partner or Assignee under this Agreement
shall be in writing and shall be deemed given or made when delivered in person
or when sent by first class United States mail or by other means of written
communication to the Partner at the address described below. Any notice to the
Partnership shall be deemed given if received by the General Partner at the
principal office of the Partnership designated pursuant to Section 2.3. The
General Partner may rely and shall be protected in relying on any notice or
other document from a Partner, Assignee or other Person if believed by it to be
genuine.

Section 15.2  Further Action.

     The parties shall execute and deliver all documents, provide all
information and take or refrain from taking action as may be necessary or
appropriate to achieve the purposes of this Agreement.

Section 15.3   Binding Effect.

     This Agreement shall be binding upon and inure to the benefit of the
parties hereto and their heirs, executors, administrators, successors, legal
representatives and permitted assigns.

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Section 15.4  Integration.

     This Agreement constitutes the entire agreement among the parties hereto
pertaining to the subject matter hereof and supersedes all prior agreements and
understandings pertaining thereto.

Section 15.5  Creditors.

     None of the provisions of this Agreement shall be for the benefit of, or
shall be enforceable by, any creditor of the Partnership.

Section 15.6  Waiver.

     No failure by any party to insist upon the strict performance of any
covenant, duty, agreement or condition of this Agreement or to exercise any
right or remedy consequent upon a breach thereof shall constitute waiver of any
such breach of any other covenant, duty, agreement or condition.

Section 15.7  Counterparts.

     This Agreement may be executed in counterparts, all of which together shall
constitute an agreement binding on all the parties hereto, notwithstanding that
all such parties are not signatories to the original or the same counterpart.
Each party shall become bound by this Agreement immediately upon affixing its
signature hereto, independently of the signature of any other party.

Section 15.8  Applicable Law.

     This Agreement shall be construed in accordance with and governed by the
laws of the State of Texas, without regard to the principles of conflicts of
law.

Section 15.9   Invalidity of Provisions.

     If any provision of this Agreement is or becomes invalid, illegal or
unenforceable in any respect, the validity, legality and enforceability of the
remaining provisions contained herein shall not be affected thereby.

Section 15.10  Consent of Partners.

     Each Partner hereby expressly consents and agrees that, whenever in this
Agreement it is specified that an action may be taken upon the affirmative vote
or consent of less than all of the Partners, such action may be so taken upon
the concurrence of less than all of the Partners and each Partner shall be bound
by the results of such action.

                    [Rest of Page Intentionally Left Blank]

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          IN WITNESS WHEREOF, the parties hereto have executed this Agreement as
of the date first written above.

                         GENERAL PARTNER:

                         PLAINS ALL AMERICAN INC.

                         By:  /s/ Michael R. Patterson
                              ------------------------
                         Name: Michael R. Patterson
                         Its:  Senior Vice President, General Counsel and 
                               Secretary

                         LIMITED PARTNER:

                         PLAINS MARKETING, L.P.

                         By:  Plains All American Inc.
                         Its: General Partner

                              By:   /s/ Michael R. Patterson
                                    ------------------------
                              Name:  Michael R. Patterson
                              Its:   Senior Vice President, General Counsel 
                                     and Secretary


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