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FIRST AMENDED AND RESTATED AGREEMENT OF LIMITED PARTNERSHIP OF RIO VISTA ENERGY PARTNERS L.P.

Limited Partnership Agreement

FIRST AMENDED AND RESTATED

                        AGREEMENT OF LIMITED PARTNERSHIP

 

                                       OF

 

                         RIO VISTA ENERGY PARTNERS L.P.

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PENN OCTANE CORP | RIO VISTA ENERGY PARTNERS L.P. | Rio Vista GP LLC

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Title: FIRST AMENDED AND RESTATED AGREEMENT OF LIMITED PARTNERSHIP OF RIO VISTA ENERGY PARTNERS L.P.
Governing Law: Delaware     Date: 11/10/2004
Industry: Oil and Gas Operations     Sector: Energy

FIRST AMENDED AND RESTATED

                        AGREEMENT OF LIMITED PARTNERSHIP

 

                                       OF

 

                         RIO VISTA ENERGY PARTNERS L.P.

, Parties: penn octane corp , rio vista energy partners l.p. , rio vista gp llc
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                           FIRST AMENDED AND RESTATED

                        AGREEMENT OF LIMITED PARTNERSHIP

 

                                       OF

 

                         RIO VISTA ENERGY PARTNERS L.P.

 

 

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<TABLE>

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                                     TABLE OF CONTENTS

 

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ARTICLE I      DEFINITIONS                                                                    1

     SECTION 1.1     Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . .     1

     SECTION 1.2     Construction. . . . . . . . . . . . . . . . . . . . . . . . . . . .    20

ARTICLE II     ORGANIZATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    20

     SECTION 2.1     Formation . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    20

     SECTION 2.2     Name. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    20

     SECTION 2.3     Registered Office; Registered Agent; Principal Office; Other

                    Offices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    20

     SECTION 2.4     Purpose and Business   . . . . . . . . . . . . . . . . . . . . . . .    20

     SECTION 2.5     Powers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    21

     SECTION 2.6     Power of Attorney . . . . . . . . . . . . . . . . . . . . . . . . .    21

     SECTION 2.7     Term. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    23

     SECTION 2.8     Title to Partnership Assets . . . . . . . . . . . . . . . . . . . .    23

ARTICLE III    RIGHTS OF LIMITED PARTNERS   . . . . . . . . . . . . . . . . . . . . . . .    24

     SECTION 3.1     Limitation of Liability . . . . . . . . . . . . . . . . . . . . . .    24

     SECTION 3.2     Management of Business. . . . . . . . . . . . . . . . . . . . . . .    24

     SECTION 3.3     Outside Activities of the Limited Partners   . . . . . . . . . . . .    24

     SECTION 3.4     Rights of Limited Partners. . . . . . . . . . . . . . . . . . . . .    24

ARTICLE IV     CERTIFICATES; RECORD HOLDERS; TRANSFER OF PARTNERSHIP INTERESTS;

              REDEMPTION OF PARTNERSHIP INTERESTS . . . . . . . . . . . . . . . . . . .    25

     SECTION 4.1     Certificates. . . . . . . . . . . . . . . . . . . . . . . . . . . .    25

     SECTION 4.2     Mutilated, Destroyed, Lost or Stolen Certificates . . . . . . . . .    25

     SECTION 4.3     Record Holders. . . . . . . . . . . . . . . . . . . . . . . . . . .    26

     SECTION 4.4     Transfer Generally   . . . . . . . . . . . . . . . . . . . . . . . .    27

     SECTION 4.5     Registration and Transfer of Limited Partner Interests. . . . . . .    27

     SECTION 4.6     Transfer of the General Partner's General Partner Interest. . . . .    28

     SECTION 4.7     Transfer of Incentive Distribution Rights . . . . . . . . . . . . .    29

     SECTION 4.8     Restrictions on Transfers . . . . . . . . . . . . . . . . . . . . .    29

     SECTION 4.9     Citizenship Certificates; Non-citizen Assignees . . . . . . . . . .    30

     SECTION 4.10    Redemption of Partnership Interests of Non-citizen Assignees. . . .    31

 

 

                                      -i-

<PAGE>

                                     TABLE OF CONTENTS

                                       (continued)

                                                                                        Page

 

ARTICLE V      CAPITAL CONTRIBUTIONS AND ISSUANCE OF PARTNERSHIP

              INTERESTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    32

     SECTION 5.1     Organizational Contributions. . . . . . . . . . . . . . . . . . . .    32

     SECTION 5.2     Contributions by the General Partner and its Affiliates . . . . . .    32

     SECTION 5.3     Contributions by Initial Limited Partners and Distributions to the

                    General Partner . . . . . . . . . . . . . . . . . . . . . . . . . .    32

     SECTION 5.4     Interest and Withdrawal . . . . . . . . . . . . . . . . . . . . . .    33

     SECTION 5.5     Capital Accounts. . . . . . . . . . . . . . . . . . . . . . . . . .    33

     SECTION 5.6     Issuances of Additional Partnership Securities. . . . . . . . . . .    36

     SECTION 5.7     Limitations on Issuance of Additional Partnership Securities. . . .    36

     SECTION 5.8     [Reserved]. . . . . . . . . . . . . . . . . . . . . . . . . . . . .    37

     SECTION 5.9     Limited Preemptive Right. . . . . . . . . . . . . . . . . . . . . .    37

     SECTION 5.10    Splits and Combinations . . . . . . . . . . . . . . . . . . . . . .    37

     SECTION 5.11    Fully Paid and Non-Assessable Nature of Limited Partner

                    Interests . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    38

ARTICLE VI     ALLOCATIONS AND DISTRIBUTIONS . . . . . . . . . . . . . . . . . . . . . .    38

     SECTION 6.1     Allocations for Capital Account Purposes. . . . . . . . . . . . . .    38

     SECTION 6.2     Allocations for Tax Purposes. . . . . . . . . . . . . . . . . . . .    45

     SECTION 6.3     Requirement and Characterization of Distributions; Distributions to

                    Record Holders. . . . . . . . . . . . . . . . . . . . . . . . . . .    47

     SECTION 6.4     Distributions of Available Cash from Operating Surplus. . . . . . .    48

     SECTION 6.5     Distributions of Available Cash from Capital Surplus. . . . . . . .    49

     SECTION 6.6     Adjustment of Minimum Quarterly Distribution and Target Distribution

                    Levels. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    49

     SECTION 6.7     [Reserved]   . . . . . . . . . . . . . . . . . . . . . . . . . . . .    49

     SECTION 6.8     Special Provisions Relating to the Holders of Incentive Distribution

                    Rights. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    49

     SECTION 6.9     Entity-Level Taxation . . . . . . . . . . . . . . . . . . . . . . .    50

ARTICLE VII    MANAGEMENT AND OPERATION OF BUSINESS   . . . . . . . . . . . . . . . . . .    50

     SECTION 7.1     Management. . . . . . . . . . . . . . . . . . . . . . . . . . . . .    50

     SECTION 7.2     Certificate of Limited Partnership. . . . . . . . . . . . . . . . .    52

     SECTION 7.3     Restrictions on the General Partner's Authority . . . . . . . . . .    53

 

 

                                      -ii-

<PAGE>

                                    TABLE OF CONTENTS

                                       (continued)

                                                                                        Page

 

     SECTION 7.4     Reimbursement of the General Partner   . . . . . . . . . . . . . . .    53

     SECTION 7.5     Outside Activities. . . . . . . . . . . . . . . . . . . . . . . . .    54

     SECTION 7.6     Loans from the General Partner; Loans or Contributions from the

                    Partnership; Contracts with Affiliates; Certain Restrictions on the

                    General Partner . . . . . . . . . . . . . . . . . . . . . . . . . .    55

     SECTION 7.7     Indemnification . . . . . . . . . . . . . . . . . . . . . . . . . .    57

     SECTION 7.8     Liability of Indemnitees. . . . . . . . . . . . . . . . . . . . . .    59

     SECTION 7.9     Resolution of Conflicts of Interest . . . . . . . . . . . . . . . .    59

     SECTION 7.10    Other Matters Concerning the General Partner. . . . . . . . . . . .    61

     SECTION 7.11    Purchase or Sale of Partnership Securities. . . . . . . . . . . . .    62

     SECTION 7.12    Registration Rights of the General Partner and its Affiliates . . .    62

     SECTION 7.13    Reliance by Third Parties . . . . . . . . . . . . . . . . . . . . .    64

ARTICLE VIII   BOOKS, RECORDS, ACCOUNTING AND REPORTS. . . . . . . . . . . . . . . . . .    65

     SECTION 8.1     Records and Accounting. . . . . . . . . . . . . . . . . . . . . . .    65

     SECTION 8.2     Fiscal Year . . . . . . . . . . . . . . . . . . . . . . . . . . . .    65

     SECTION 8.3     Reports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    65

ARTICLE IX     TAX MATTERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    65

     SECTION 9.1     Tax Returns and Information . . . . . . . . . . . . . . . . . . . .    65

     SECTION 9.2     Tax Elections . . . . . . . . . . . . . . . . . . . . . . . . . . .    66

     SECTION 9.3     Tax Controversies . . . . . . . . . . . . . . . . . . . . . . . . .    66

     SECTION 9.4     Withholding . . . . . . . . . . . . . . . . . . . . . . . . . . . .    66

ARTICLE X      ADMISSION OF PARTNERS . . . . . . . . . . . . . . . . . . . . . . . . . .    67

     SECTION 10.1    Admission of Initial Limited Partners . . . . . . . . . . . . . . .    67

     SECTION 10.2    Admission of Substituted Limited Partner. . . . . . . . . . . . . .    67

     SECTION 10.3    Admission of Successor General Partner. . . . . . . . . . . . . . .    67

     SECTION 10.4    Admission of Additional Limited Partners. . . . . . . . . . . . . .    68

     SECTION 10.5    Amendment of Agreement and Certificate of Limited Partnership . . .    68

ARTICLE XI     WITHDRAWAL OR REMOVAL OF PARTNERS . . . . . . . . . . . . . . . . . . . .    68

     SECTION 11.1    Withdrawal of the General Partner . . . . . . . . . . . . . . . . .    68

     SECTION 11.2    Removal of the General Partner. . . . . . . . . . . . . . . . . . .    70

 

 

                                       -iii-

<PAGE>

                                    TABLE OF CONTENTS

                                       (continued)

                                                                                        Page

 

     SECTION 11.3    Interest of Departing Partner and Successor General Partner . . . .    71

     SECTION 11.4    Withdrawal of Limited Partners. . . . . . . . . . . . . . . . . . .    72

ARTICLE XII    DISSOLUTION AND LIQUIDATION . . . . . . . . . . . . . . . . . . . . . . .    72

     SECTION 12.1    Dissolution . . . . . . . . . . . . . . . . . . . . . . . . . . . .    72

     SECTION 12.2    Continuation of the Business of the Partnership After

                    Dissolution . . . . . . . . . . . . . . . . . . . . . . . . . . . .    73

     SECTION 12.3    Liquidator. . . . . . . . . . . . . . . . . . . . . . . . . . . . .    73

     SECTION 12.4    Liquidation . . . . . . . . . . . . . . . . . . . . . . . . . . . .    74

     SECTION 12.5    Cancellation of Certificate of Limited Partnership   . . . . . . . .    75

     SECTION 12.6    Return of Contributions . . . . . . . . . . . . . . . . . . . . . .    75

     SECTION 12.7    Waiver of Partition . . . . . . . . . . . . . . . . . . . . . . . .    75

     SECTION 12.8    Capital Account Restoration . . . . . . . . . . . . . . . . . . . .    75

ARTICLE XIII   AMENDMENT OF PARTNERSHIP AGREEMENT; MEETINGS;

              RECORD DATE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    75

     SECTION 13.1    Amendment to be Adopted Solely by the General Partner . . . . . . .    75

     SECTION 13.2    Amendment Procedures. . . . . . . . . . . . . . . . . . . . . . . .    77

     SECTION 13.3    Amendment Requirements   . . . . . . . . . . . . . . . . . . . . . .    78

     SECTION 13.4    Special Meetings. . . . . . . . . . . . . . . . . . . . . . . . . .    78

     SECTION 13.5    Notice of a Meeting . . . . . . . . . . . . . . . . . . . . . . . .    79

     SECTION 13.6    Record Date . . . . . . . . . . . . . . . . . . . . . . . . . . . .    79

     SECTION 13.7    Adjournment . . . . . . . . . . . . . . . . . . . . . . . . . . . .    79

     SECTION 13.8    Waiver of Notice; Approval of Meeting; Approval of Minutes   . . . .    79

     SECTION 13.9    Quorum. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    80

     SECTION 13.10   Conduct of a Meeting. . . . . . . . . . . . . . . . . . . . . . . .    80

     SECTION 13.11   Action Without a Meeting. . . . . . . . . . . . . . . . . . . . . .    80

     SECTION 13.12   Voting and Other Rights . . . . . . . . . . . . . . . . . . . . . .    81

ARTICLE XIV    MERGER. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    82

     SECTION 14.1    Authority . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    82

     SECTION 14.2    Procedure for Merger or Consolidation . . . . . . . . . . . . . . .    82

     SECTION 14.3    Approval by Limited Partners of Merger or Consolidation. . . . . . .   83

     SECTION 14.4    Certificate of Merger . . . . . . . . . . . . . . . . . . . . . . .    84

 

 

                                       -iv-

<PAGE>

                                    TABLE OF CONTENTS

                                       (continued)

                                                                                        Page

 

     SECTION 14.5    Effect of Merger. . . . . . . . . . . . . . . . . . . . . . . . . .    84

ARTICLE XV     GENERAL PROVISIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . .    84

     SECTION 15.1    Addresses and Notices . . . . . . . . . . . . . . . . . . . . . . .    84

     SECTION 15.2    Further Action. . . . . . . . . . . . . . . . . . . . . . . . . . .    85

     SECTION 15.3    Binding Effect. . . . . . . . . . . . . . . . . . . . . . . . . . .    85

     SECTION 15.4    Integration . . . . . . . . . . . . . . . . . . . . . . . . . . . .    85

     SECTION 15.5    Creditors . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    85

     SECTION 15.6    Waiver. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    85

     SECTION 15.7    Counterparts. . . . . . . . . . . . . . . . . . . . . . . . . . . .    85

     SECTION 15.8    Applicable Law   . . . . . . . . . . . . . . . . . . . . . . . . . .    86

     SECTION 15.9    Invalidity of Provisions. . . . . . . . . . . . . . . . . . . . . .    86

     SECTION 15.10   Consent of Partners . . . . . . . . . . . . . . . . . . . . . . . .    86

</TABLE>

 

 

                                      -v-

<PAGE>

                           FIRST AMENDED AND RESTATED

                       AGREEMENT OF LIMITED PARTNERSHIP OF

                          RIO VISTA ENERGY PARTNERS L.P.

 

     THIS   FIRST   AMENDED   AND   RESTATED AGREEMENT OF LIMITED PARTNERSHIP OF RIO

VISTA   ENERGY   PARTNERS L.P., dated as of September 16, 2004, is entered into by

and among Rio Vista GP LLC, a Delaware limited liability company, as the General

Partner,   and   Penn   Octane   Corporation,   a   Delaware   corporation,   as   the

Organizational   Limited   Partner,   together   with   any   other Persons who become

Partners   in   the   Partnership   or   parties   hereto   as   provided   herein.   In

consideration   of the covenants, conditions and agreements contained herein, the

parties   hereto   hereby   agree   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.

 

     "Acquisition"   means   any   transaction   in   which any Group Member acquires

(through   an   asset   acquisition,   merger,   stock   acquisition   or other form of

investment)   control over all or a portion of the assets, properties or business

of   another   Person   for   the   purpose   of   increasing the operating capacity or

revenues of the Partnership Group from the operating capacity or revenues of the

Partnership   Group   existing   immediately   prior   to   such   transaction.

 

     "Additional   Book   Basis" means the portion of any remaining Carrying Value

of   an   Adjusted   Property   that is attributable to positive adjustments made to

such   Carrying   Value as a result of Book-Up Events. For purposes of determining

the   extent   that   Carrying   Value   constitutes   Additional   Book   Basis:

 

     (a)   Any   negative   adjustment   made   to   the Carrying Value of an Adjusted

          Property   as   a   result of either a Book-Down Event or a Book-Up Event

          shall   first   be   deemed   to   offset   or   decrease that portion of the

          Carrying   Value   of such Adjusted Property that is attributable to any

          prior positive adjustments made thereto pursuant to a Book-Up Event or

          Book-Down   Event.

 

     (b)   If Carrying Value that constitutes Additional Book Basis is reduced as

          a result of a Book-Down Event and the Carrying Value of other property

          is increased as a result of such Book-Down Event, an allocable portion

          of   any such increase in Carrying Value shall be treated as Additional

          Book   Basis; provided that the amount treated as Additional Book Basis

          pursuant   hereto   as a result of such Book-Down Event shall not exceed

          the   amount   by which the Aggregate Remaining Net Positive Adjustments

          after such Book-Down Event exceeds the remaining Additional Book Basis

          attributable   to all of the Partnership's Adjusted Property after such

          Book-Down   Event (determined without regard to the application of this

          clause   (b)   to   such   Book-Down   Event).

 

 

                                         1

<PAGE>

     "Additional   Book   Basis   Derivative Items" means any Book Basis Derivative

Items   that   are computed with reference to Additional Book Basis. To the extent

that the Additional Book Basis attributable to all of the Partnership's Adjusted

Property   as   of   the   beginning   of   any   taxable   period exceeds the Aggregate

Remaining   Net   Positive   Adjustments   as   of   the beginning of such period (the

"Excess   Additional Book Basis"), the Additional Book Basis Derivative Items for

such   period   shall   be   reduced   by the amount that bears the same ratio to the

amount   of   Additional   Book Basis Derivative Items determined without regard to

this   sentence   as the Excess Additional Book Basis bears to the Additional Book

Basis   as   of   the   beginning   of   such   period.

 

     "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.

 

      "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,   a   Common   Unit   or   an   Incentive   Distribution   Right   or any other

specified   interest   in   the Partnership shall be the amount which such Adjusted

Capital   Account   would   be   if   such   General   Partner   Interest,   Common Unit,

Incentive   Distribution Right or other interest in the Partnership were the only

interest   in   the   Partnership   held   by such Partner from and after the date on

which   such   General Partner Interest, Common Unit, Incentive Distribution Right

or   other   interest   was   first   issued.

 

     "Adjusted   Operating   Surplus" means, with respect to any period, Operating

Surplus   generated   during   such period (a) less (i) any net increase in Working

Capital   Borrowings   with   respect   to such period and (ii) any net reduction in

cash   reserves   for   Operating   Expenditures   with   respect   to   such period not

relating   to   an Operating Expenditure made during such period, and (b) plus (i)

any   net decrease in Working Capital Borrowings with respect to such period, and

(ii)   any   net increase in cash reserves for Operating Expenditures with respect

to   such   period required by any debt instrument for the repayment of principal,

interest or premium. Adjusted Operating Surplus does not include that portion of

Operating   Surplus   included   in   clause   (a)(i)   of the definition of Operating

Surplus.

 

 

                                        2

<PAGE>

     "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).

 

     "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.

 

     "Aggregate   Remaining Net Positive Adjustments" means, as of the end of any

taxable   period,   the   sum   of the Remaining Net Positive Adjustments of all the

Partners.

 

     "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, 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.   With   respect   to   the Contributed Property deemed

contributed   to   the   Partnership by an Initial Limited Partner (as described in

the   definition   of   Contributed   Property), the Agreed Value shall be the value

assigned   for   federal   income   tax   purposes   by   the   General   Partner (in its

reasonable   discretion)   to   such   Contributed   Property.

 

     "Agreement"   means   this   First   Amended   and Restated Agreement of Limited

Partnership   of   Rio   Vista   Energy   Partners   L.P.,   as   it   may   be   amended,

supplemented   or   restated   from   time   to   time.

 

     "Assignee"   means   a   Non-citizen   Assignee or a Person to whom one or more

Limited Partner Interests have been transferred in a manner permitted under this

Agreement   and who has executed and delivered a Transfer Application as required

by   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.

 

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

Liquidation   Date:

 

 

                                        3

<PAGE>

     (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 are 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 which it is bound or its

          assets   are   subject   or   (iii)   provide funds for distributions under

          Section   6.4   or   6.5   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 Partnership 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   Basis Derivative Items" means any item of income, deduction, gain or

loss   included   in   the determination of Net Income or Net Loss that is computed

with   reference   to   the   Carrying   Value   of   an   Adjusted   Property   (e.g.,

depreciation,   depletion, or gain or loss with respect to an Adjusted Property).

 

      "Book-Down   Event"   means   an event which triggers a negative adjustment to

the   Capital   Accounts   of   the   Partners   pursuant   to   Section   5.5(d).

 

     "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.

 

 

                                        4

<PAGE>

     "Book-Up   Event" means an event which triggers a positive adjustment to the

Capital   Accounts   of   the   Partners   pursuant   to   Section   5.5(d).

 

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

 

     "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   State   of   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, a Common Unit, an Incentive Distribution Right or any

other   Partnership Interest shall be the amount which such Capital Account would

be   if   such   General Partner Interest, Common Unit, Distribution Right or other

Partnership   Interest   were   the   only   interest in the Partnership held by such

Partner   from   and after the date on which such General Partner Interest, Common

Unit,   Incentive   Distribution   Right   or   other   Partnership Interest 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   Agreement.

 

     "Capital   Improvement" means any (a) addition or improvement to the capital

assets   owned   by   any   Group   Member   or   (b)   acquisition   of existing, or the

construction   of   new,   capital   assets   (including,   without   limitation,   LPG

transportation, storage facilities and logistics assets, and related assets), in

each   case if such addition, improvement, acquisition or construction is made to

increase   the   operating   capacity or revenues of the Partnership Group from the

operating   capacity   or   revenues   of the Partnership Group existing immediately

prior   to   such   addition,   improvement,   acquisition   or   construction.

 

     "Capital   Surplus" has the meaning assigned to such term in Section 6.3(a).

 

     "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 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.

 

     "Cause"   means   a   court   of   competent   jurisdiction   has entered a final,

non-appealable   judgment   finding   the   General Partner liable for actual fraud,

gross   negligence   or   willful or wanton misconduct in its capacity as a general

partner   of   the   Partnership.

 

     "Certificate"   means a certificate (i) substantially in the form of Exhibit

A to this Agreement, (ii) issued in global form in accordance with the rules and

regulations   of   the

 

 

                                         5

<PAGE>

Depositary   or (iii) in such other form as may be adopted by the General Partner

in its discretion, issued by the Partnership evidencing ownership of one or more

Common   Units   or   a   certificate, in such form as may be adopted by the General

Partner in its discretion, issued by the Partnership evidencing ownership of one

or   more   other   Partnership   Securities.

 

     "Certificate   of   Limited   Partnership"   means   the   Certificate of Limited

Partnership of the Partnership filed with the Secretary of State of the State of

Delaware as such Certificate of Limited Partnership may be amended, supplemented

or   restated   from   time   to   time.

 

     "Citizenship   Certification" means a properly completed certificate in such

form as may be specified by the General Partner by which a Limited Partner or an

Assignee   certifies   that   he (and if he is a nominee holding for the account of

another   Person,   that   to   the   best   of his knowledge such other Person) is an

Eligible   Citizen.

 

     "Claim"   has   the   meaning   assigned   to   such   term   in   Section   7.12(c).

 

     "Closing   Date"   means   the   date   of   the   Distribution.

 

     "Closing   Price"   means the last sale price on such day, regular way, or in

case   no   such   sale takes place on such day, the average of the closing bid and

asked   prices   on   such   day,   regular   way,   in   either case as reported in the

principal   consolidated   transaction reporting system with respect to securities

listed   or   admitted   for   trading on the principal National Securities Exchange

(other   than the Nasdaq Stock Market) on which such Limited Partner Interests of

such   class   are   listed   or   admitted   to   trading   or, if such Limited Partner

Interests   of   such   class are not listed or admitted to trading on any National

Securities   Exchange (other than the Nasdaq Stock Market), the last quoted price

on   such   day   or,   if   not so quoted, the average of the high bid and low asked

prices   on   such   day   in the over-the-counter market, as reported by the Nasdaq

Stock   Market   or   such   other   system   then in use, or, if on any such day such

Limited Partner Interests of such class are not quoted by any such organization,

the   average   of   the closing bid and asked prices on such day as furnished by a

professional   market   maker making a market in such Limited Partner Interests of

such   class   selected   by   the   General Partner, or if on any such day no market

maker   is   making   a market in such Limited Partner Interests of such class, the

fair   value   of   such   Limited   Partner   Interests   on   such   day   as determined

reasonably   and   in   good   faith   by   the   General   Partner.

 

     "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

any   successor   law.

 

     "Combined   Interest"   has   the   meaning   assigned   to   such term in Section

11.3(a).

 

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

 

     "Common   Unit"   means a Partnership Security representing a fractional part

of   the   Partnership   Interests of all Limited Partners and Assignees and of the

General Partner, and having the rights and obligations specified with respect to

Common   Units   in   this   Agreement.

 

 

                                        6

<PAGE>

     "Common   Unit   Arrearage"   means, with respect to any Common Unit, whenever

issued,   the   excess,   if   any,   of   (a) the Minimum Quarterly Distribution with

respect   to   a   Common   Unit   in respect of such Quarter over (b) the sum of all

Available   Cash   distributed   with   respect   to a Common Unit in respect of such

Quarter   pursuant   to   Section   6.4(a)(i).

 

     "Conflicts   Committee"   means   a   committee of the Board of Managers of the

General   Partner   composed   entirely   of   three or more managers who are not (a)

security   holders,   officers   or employees of the General Partner, (b) officers,

directors or employees of any Affiliate of the General Partner or (c) holders of

any   ownership interest in the Partnership Group other than Common Units and who

also   meet the independence standards required to serve on an audit committee of

a   board   of   directors   by the National Securities Exchange on which the Common

Units   are   listed   for   trading.

 

     "Contributed   Property" means each property or other asset, in such form as

may   be   permitted   by   the Delaware Act, but excluding cash, contributed to the

Partnership.   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.   For purposes of

this   definition,   each Limited Partner who receives Initial Common Units in the

Distribution   shall be treated as having received a distribution of an undivided

interest   in   the   assets   contributed pursuant to the Contribution Agreement by

Penn   Octane   Corporation   to the Partnership, subject to applicable liabilities

described   in   the   Contribution Agreement, followed immediately thereafter by a

contribution   of   the   Partner's   undivided   interest   in such assets subject to

applicable liabilities, to the Partnership in exchange for the Partner's Initial

Common   Units   received   in   the   Distribution.   For   this purpose, each Limited

Partner's   undivided   interest   in the assets expressed as a percentage shall be

the   same   percentage   as   the   Limited Partner's Percentage Interest determined

immediately   following   the   Distribution.

 

     "Contribution   Agreement"   means   that certain Contribution, Conveyance and

Assumption Agreement, dated as of September 16, 2004, among the General Partner,

the   Partnership, the Operating Partnership, Penn Octane Corporation and certain

other   Affiliates   of   Penn   Octane   Corporation,   together   with the additional

conveyance   documents   and   instruments   contemplated   or referenced thereunder.

 

     "Controlled   Person"   means   any   corporation   or   partnership of which the

Partnership   or   any   Subsidiary   owns or controls an interest in excess of 25%.

 

     "Cumulative   Common Unit Arrearage" means, with respect to any Common Unit,

whenever   issued,   and   as of the end of any Quarter, the excess, if any, of (a)

the   sum   resulting   from   adding   together   the   Common Unit Arrearage as to an

Initial   Common   Unit   for each Quarter ending on or before the last day of such

Quarter   over   (b)   the   sum   of   any distributions theretofore made pursuant to

Section   6.4(a)(ii)   and   the   second sentence of Section 6.5 with respect to an

Initial   Common   Unit   (including any distributions to be made in respect of the

last   of   such   Quarters).

 

     "Curative   Allocation"   means   any   allocation   of an item of income, gain,

deduction,   loss   or   credit   pursuant   to   the provisions of Section 6.1(d)(x).

 

 

                                        7

<PAGE>

     "Current   Market   Price"   as   of   any   date of any class of Limited Partner

Interests   means   the   average   of   the daily Closing Prices per Limited Partner

Interest   of such class for the 20 consecutive Trading Days immediately prior to

such   date.

 

     "Delaware   Act" means the Delaware Revised Uniform Limited Partnership Act,

6   Del.   C.   Section   17-101, et seq., as amended, supplemented or restated from

time   to   time,   and   any   successor   to   such   statute.

 

     "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.

 

     "Depositary"   means,   with   respect to any Units issued in global form, The

Depository   Trust   Company   and   its   successors   and   permitted   assigns.

 

     "Distribution"   means   the pro rata distribution by Penn Octane Corporation

of   its 98% Limited Partner Interest representing 98% of the Common Units to the

stockholders   of   Penn   Octane   Corporation,   as   described   in the Registration

Statement.

 

     "Economic   Risk   of   Loss" has the meaning set forth in Treasury Regulation

Section   1.752-2(a).

 

     "Eligible   Citizen" means a Person who is (i) qualified to own interests in

real   property   in   jurisdictions   in   which   any   Group Member does business or

proposes to do business from time to time, and whose status as a Limited Partner

or   Assignee   does   not   or would not subject such Group Member to a significant

risk   of   cancellation   or   forfeiture   of any of its properties or any interest

therein   and   (ii)   is   not   a   Non-citizen.

 

     "Event   of   Withdrawal"   has   the   meaning assigned to such term in Section

11.1(a).

 

     "First   Liquidation Target Amount" has the meaning assigned to such term in

Section   6.1(c)(i)(C).

 

     "First   Target   Distribution"   means   $0.292 per Unit per Quarter (or, with

respect   to the period commencing on the Closing Date and ending on the last day

of   the calendar quarter that includes the Closing Date, it means the product of

$0.292   multiplied by a fraction of which the numerator is the number of days in

such   period,   and   of   which   the   denominator is 91), subject to adjustment in

accordance   with   Sections   6.6   and   6.9.

 

     "Fully   Diluted   Basis"   means,   when calculating the number of Outstanding

Units   for   any   period,   a   basis that includes, in addition to the Outstanding

Units, all Partnership Securities and options, rights, warrants and appreciation

rights   relating   to   an   equity   interest   in   the   Partnership   (a)   that   are

convertible   into or exercisable or exchangeable for Units that are senior to or

pari   passu   with   the   Common Units, (b) whose conversion, exercise or exchange

price is less than the Current Market Price on the date of such calculation, (c)

that   may be converted into or exercised or exchanged for such Units prior to or

during the Quarter following the end of the last Quarter contained in the period

for   which   the   calculation   is   being   made   without   the   satisfaction of any

contingency   beyond   the   control   of   the   holder   other   than   the   payment of

consideration   and   the

 

 

                                        8

<PAGE>

compliance with administrative mechanics applicable to such conversion, exercise

or   exchange, and (d) were not converted into or exercised or exchanged for such

Units   prior   to   the   end   of the last quarter referred to in clause (c) above.

 

     "General   Partner"   means Rio Vista GP LLC 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 without

reference   to any Limited Partner Interest held by it) which may be evidenced by

Partnership   Securities   or   a   combination   thereof   or   interest   therein, 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 Partnership Securities with any other

Person   that   beneficially   owns, or whose Affiliates or Associates beneficially

own,   directly   or   indirectly,   Partnership   Securities.

 

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

 

     "Holder"   as used in Section 7.12, has the meaning assigned to such term in

Section   7.12(a).

 

     "Incentive   Distribution Right" means a non-voting Limited Partner Interest

issued   to   the   General   Partner   in exchange for the conveyance by the General

Partner   of $1,000 to the Partnership pursuant to Section 5.2, which Partnership

Interest   will   confer   upon   the holder thereof only the rights and obligations

specifically   provided   in this Agreement with respect to Incentive Distribution

Rights   (and   no   other   rights otherwise available to or other obligations of a

holder of a Partnership Interest). Notwithstanding anything in this Agreement to

the   contrary,   the   holder   of   an   Incentive   Distribution   Right shall not be

entitled   to   vote   such   Incentive Distribution Right on any Partnership matter

except   as   may   otherwise   be   required   by   law.

 

     "Incentive   Distributions"   means   any   amount   of   cash distributed to the

holders   of   the   Incentive Distribution Rights pursuant to Sections 6.4(a)(iv),

(v),   and   (vi).

 

     "Indemnified   Persons"   has   the   meaning   assigned to such term in Section

7.12(c).

 

     "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,   manager, 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,   manager,   partner,   agent,

 

 

                                        9

<PAGE>

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   Common   Units"   means   the   Common   Units   distributed   in   the

Distribution.

 

     "Initial   Limited   Partners" means the General Partner and the stockholders

of   Penn   Octane   Corporation   that   receive   Initial   Common   Units   in   the

Distribution,   in each case upon being admitted to the Partnership in accordance

with   Section   10.1.

 

     "Initial   Unit   Capital   Account"   means   (a)   with respect to each Initial

Limited   Partner,   the   value   assigned   for   federal income tax purposes by the

General   Partner   (in   its   reasonable   discretion)   to the Contributed Property

contributed   by   an   Initial Limited Partner to the Partnership (as described in

the   definition   of   Contributed   Property)   in   exchange for the Initial Common

Units, reduced by the amount of liabilities to which such property is subject as

determined   by   the   General   Partner   in   its reasonable discretion or (b) with

respect   to any other class or series of Units, the price per Unit at which such

class   or series of Units is initially sold by the Partnership, as determined by

the   General Partner, in each case adjusted as the General Partner determines to

be appropriate to give effect to any distribution, subdivision or combination of

Units.

 

     "Interim   Capital   Transactions"   means   the following transactions if they

occur   prior to the Liquidation Date: (a) borrowings, refinancings or refundings

of   indebtedness   and   sales   of   debt   securities   (other   than Working Capital

Borrowings   and   other   than for items purchased on open account in the ordinary

course   of   business)   by any Group Member; (b) sales of equity interests by any

Group   Member;   and   (c) sales or other voluntary or involuntary dispositions of

any   assets   of   any   Group Member other than (i) sales or other dispositions of

inventory,   accounts   receivable   and   other   assets   in   the ordinary course of

business,   and   (ii)   sales   or   other   dispositions of assets as part of normal

retirements   or   replacements.

 

     "Issue   Price"   means   the   price   at   which   a   Unit is purchased from the

Partnership,   after   taking   into   account   any sales commission or underwriting

discount   charged   to   the   Partnership.

 

     "Limited   Partner"   means,   unless   the context otherwise requires, (a) the

Organizational   Limited   Partner prior to the Distribution, each Initial Limited

Partner,   each   Substituted Limited Partner, each Additional Limited Partner and

any   Departing   Partner   upon   the   change of its status from General Partner to

Limited   Partner pursuant to Section 11.3 or (b) solely for purposes of Articles

V, VI, VII and IX, each Assignee; provided, however, that when the term "Limited

Partner"   is used herein in the context of any vote or other approval, including

without   limitation   Articles XIII and XIV, such term shall not, solely for such

purpose,   include   any   holder   of an Incentive Distribution Right except as may

otherwise   be   required   by   law.

 

     "Limited   Partner   Interest"   means   the   ownership   interest   of a Limited

Partner   or Assignee in the Partnership, which may be evidenced by Common Units,

Incentive   Distribution   Rights or other Partnership Securities or a combination

thereof   or   interest   therein,   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

 

 

                                       10

<PAGE>

provisions   of   this   Agreement;   provided, however, that when the term "Limited

Partner   Interest"   is used herein in the context of any vote or other approval,

including   without limitation Articles XIII and XIV, such term shall not, solely

for   such   purpose, include any holder of an Incentive Distribution Right except

as   may   otherwise   be   required   by   law.

 

     "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   holders   of   Outstanding   Units   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   Delaware   Act.

 

     "Minimum   Quarterly Distribution" means $0.25 per Unit per Quarter (or with

respect   to the period commencing on the Closing Date and ending on the last day

of   the calendar quarter that includes the Closing Date, it means the product of

$0.25   multiplied   by a fraction of which the numerator is the number of days in

such   period   and   of   which   the   denominator   is 91), subject to adjustment in

accordance   with   Sections   6.6   and   6.9.

 

     "National   Securities   Exchange"   means   an   exchange   registered   with the

Commission   under   Section   6(a)   of   the   Securities   Exchange   Act of 1934, as

amended,   supplemented   or restated from time to time, and any successor to such

statute,   or   the   Nasdaq   Stock   Market   or   any   successor   thereto.

 

     "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 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); provided that

the   determination of the items that have been specially allocated under Section

6.1(d)   shall   be   made   as   if   Section   6.1(d)(xi) were not in this Agreement.

 

 

                                       11

<PAGE>

     "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); provided that the

determination   of   the   items   that   have been specially allocated under Section

6.1(d)   shall   be   made   as   if   Section   6.1(d)(xi) were not in this Agreement.

 

     "Net   Positive Adjustments" means, with respect to any Partner, the excess,

if   any,   of   the total positive adjustments over the total negative adjustments

made   to   the   Capital   Account   of   such Partner pursuant to Book-Up Events and

Book-Down   Events.

 

     "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).

 

     "Non-citizen"   means   (1)   any   person   (including   any   individual,   a

partnership,   a   corporation   or   an   association)   who   is   not a United States

citizen,   within   the meaning of Section 2 of the Shipping Act, 1916, as amended

or   as it may hereafter be amended; (2) any foreign government or representative

thereof; (3) any corporation, the president, chief executive officer or chairman

of   the   board   of   directors of which is a Non-citizen, or of which more than a

minority   or   the   number   of its directors necessary to constitute a quorum are

Non-citizens;   (4)   any   corporation   organized   under   the   laws of any foreign

government;   (5)   any   corporation   of   which   25%   or greater interest is owned

beneficially or of record, or may be voted by, a Non-citizen or Non-citizens, or

which   by   any   other   means   whatsoever is controlled by or in which control is

permitted   to be exercised by a Non-citizen or Non-citizens (the General Partner

being   authorized   to   determine   reasonably   the   meaning of "control" for this

purpose);   (6)   any   partnership   or   association   which   is   controlled   by   a

Non-citizen   or   Non-citizens;   or   (7)   any   person   (including   an individual,

partnership,   corporation   or   association)   who   acts   as   representative of or

fiduciary   for   any   person   described   in   clauses   (1)   through   (6)   above.

 

     "Non-citizen   Assignee"   means   a   Person   whom   the   General   Partner   has

determined   in   its discretion does not constitute an Eligible Citizen and as to

whose   Partnership   Interest   the   General   Partner   has   become the Substituted

Limited   Partner   pursuant   to   Section   4.9.

 

 

                                        12

<PAGE>

     "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

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(b),   are   attributable   to a Nonrecourse Liability.

 

     "Nonrecourse   Liability"   has   the meaning set forth in Treasury Regulation

Section   1.752-1(a)(2).

 

     "Notice   of   Election to Purchase" has the meaning assigned to such term in

Section   15.1(b).

 

     "Omnibus   Agreement"   means that Omnibus Agreement, dated as of the Closing

Date,   among   Penn   Octane Corporation, the General Partner, the Partnership and

the   Operating   Partnership.

 

     "Operating   Expenditures"   means   all   Partnership   Group   expenditures,

including,   but   not   limited   to, taxes, reimbursements of the General Partner,

repayment   of   Working   Capital   Borrowings,   debt   service payments and capital

expenditures,   subject   to   the   following:

 

     (a)   Payments   (including   prepayments)   of   principal   of   and   premium on

          indebtedness   other   than   Working   Capital   Borrowings   shall   not

          constitute   Operating

 

     (b)   Operating Expenditures shall not include (i) capital expenditures made

          for   Acquisitions   or   for   Capital   Improvements,   (ii)   payment   of

          transaction expenses relating to Interim Capital Transactions or (iii)

          distributions to Partners. Where capital expenditures are made in part

          for   Acquisitions   or   for   Capital Improvements and in part for other

          purposes,   the   General   Partner's   good   faith allocation between the

          amounts   paid   for   each   shall   be   conclusive.

 

     "Operating   Partnership"   means   Rio   Vista   Operating   Partnership L.P., a

Delaware   limited   partnership,   and   any   successors   thereto.

 

     "Operating   Partnership   Agreement"   means the Partnership Agreement of the

Operating   Partnership, as it may be amended, supplemented or restated from time

to   time.

 

     "Operating   Surplus"   means, with respect to any period ending prior to the

Liquidation   Date,   on   a   cumulative   basis   and   without   duplication,

 

     (a)   the   sum of (i) all cash and cash equivalents of the Partnership Group

          on hand as of the close of business on the Closing Date, (ii) all cash

          receipts   of   the   Partnership   Group   for the period beginning on the

          Closing   Date   and   ending   with   the   last   day

 

 

                                       13

<PAGE>

           of   such   period,   other   than   cash   receipts   from   Interim   Capital

          Transactions (except to the extent specified in Section 6.5) and (iii)

          all   cash   receipts   of   the   Partnership   Group after the end of such

          period but on or before the date of determination of Operating Surplus

          with respect to such period resulting from Working Capital Borrowings,

          less

 

     (b)   the   sum of (i) Operating Expenditures for the period beginning on the

          Closing   Date and ending with the last day of such period and (ii) the

          amount   of   cash   reserves   that   is   necessary   or   advisable   in the

          reasonable   discretion   of   the   General   Partner to provide funds for

          future   Operating   Expenditures; provided, however, that disbursements

          made   (including   contributions   to a Group Member or disbursements on

          behalf   of   a Group Member) or cash reserves established, increased or

          reduced   after   the   end   of   such period but on or before the date of

          determination   of   Available Cash with respect to such period shall be

          deemed   to   have   been   made,   established,   increased or reduced, for

          purposes   of   determining Operating Surplus, within such period if the

          General   Partner   so   determines.

 

     Notwithstanding   the   foregoing,   "Operating   Surplus"   with respect to the

Quarter   in   which   the Liquidation Date occurs and any subsequent Quarter shall

equal   zero.

 

     "Opinion of Counsel" means a written opinion of counsel (who 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.

 

     "Organizational   Limited   Partner"   means   Penn   Octane   Corporation in its

capacity   as   the   organizational limited partner of the Partnership pursuant to

this   Agreement.

 

     "Outstanding"   means,   with   respect   to   Partnership   Securities,   all

Partnership   Securities   that   are   issued   by   the Partnership and reflected as

outstanding   on   the   Partnership's   books   and   records   as   of   the   date   of

determination; provided, however, that if at any time any Person or Group (other

than the General Partner or its Affiliates) beneficially owns 20% or more of any

Outstanding   Partnership   Securities   of   any   class   then   Outstanding,   all

Partnership   Securities   owned by such Person or Group shall not be voted on any

matter   and   shall not be considered to be Outstanding when sending notices of a

meeting   of Limited Partners to vote on any matter (unless otherwise required by

law),   calculating   required   votes, determining the presence of a quorum or for

other   similar   purposes under this Agreement, except that Common Units so owned

shall   be considered to be Outstanding for purposes of Section 11.1(b)(iv) (such

Common   Units   shall not, however, be treated as a separate class of Partnership

Securities   for   purposes   of   this   Agreement);   provided,   further,   that   the

foregoing limitation shall not apply (i) to any Person or Group who acquired 20%

or   more of any Outstanding Partnership Securities of any class then Outstanding

directly   from   the   General   Partner or its Affiliates, including any Person or

Group   who acquired 20% or more of any Outstanding Partnership Securities in the

Distribution,   (ii)   to   any   Person   or   Group   who acquired 20% or more of any

Outstanding   Partnership   Securities   of   any class then Outstanding directly or

indirectly   from   a   Person   or   Group described in clause (i) provided that the

General   Partner   shall   have notified such Person or Group in writing that such

limitation   shall not apply, or (iii) to any Person or Group who acquired 20% or

more   of   any

 

 

                                        14

<PAGE>

Partnership   Securities issued by the Partnership with the prior approval of the

Board   of Managers of the General Partner; provided further, that the provisions

contained   herein   may   be amended by the General Partner as provided in Section

13.1   hereof.

 

     "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.

 

     "Partners"   means   the   General   Partner   and   the   Limited   Partners.

 

     "Partnership"   means   Rio   Vista   Energy   Partners L.P., a Delaware limited

partnership,   and   any   successors   thereto.

 

     "Partnership   Group"   means   the Partnership, the Operating Partnership and

any   Subsidiary   of   any   such   entity, treated as a single consolidated entity.

 

     "Partnership   Interest"   means   an interest in the Partnership, which shall

include   the   General   Partner   Interest   and   Limited   Partner   Interests.

 

     "Partnership   Minimum Gain" means that amount determined in accordance with

the   principles   of   Treasury   Regulation   Section   1.704-2(d).

 

     "Partnership   Security" means any class or series of equity interest in the

Partnership (but excluding any options, rights, warrants and appreciation rights

relating   to   an   equity   interest   in   the   Partnership),   including   without

limitation,   Common   Units   and   Incentive   Distribution   Rights.

 

     "Percentage   Interest"   means as of any date of determination (a) as to the

General   Partner   (in   its   capacity as General Partner without reference to any

Limited   Partner   Interests   held   by   it),   2.0%,   (b)   as to any Unitholder or

Assignee   holding   Units,   the   product obtained by multiplying (i) 98% less the

percentage applicable to paragraph (c) by (ii) the quotient obtained by dividing

(A)   the   number   of   Units held by such Unitholder or Assignee by (B) the total

number   of   all   Outstanding   Units,   and   (c)   as   to the holders of additional

Partnership Securities issued by the Partnership in accordance with Section 5.6,

the   percentage   established as a part of such issuance. The Percentage Interest

with   respect   to   an   Incentive   Distribution Right shall at all times be zero.

 

     "Per   Unit   Capital   Amount"   means,   as   of any date of determination, the

Capital   Account,   stated   on   a   per   Unit basis, underlying any Unit held by a

Person   other   than   the General Partner or any Affiliate of the General Partner

who   holds   Units.

 

 

                                       15

<PAGE>

     "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.

 

     "Pro Rata" means (a) when modifying Units or any class thereof, apportioned

equally   among all designated Units in accordance with their relative Percentage

Interests,   (b)   when   modifying   Partners   and Assignees, apportioned among all

Partners   and   Assignees   in accordance with their relative Percentage Interests

and   (c)   when   modifying   holders of Incentive Distribution Rights, apportioned

equally   among   all   holders of Incentive Distribution Rights in accordance with

the   relative   number of Incentive Distribution Rights held by each such holder.

 

     "Purchase   Date"   means   the   date determined by the General Partner as the

date   for purchase of all Outstanding Units of a certain class (other than Units

owned   by   the   General   Partner   and   its   Affiliates)   pursuant to Article XV.

 

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

or, with respect to the first fiscal quarter after the Closing Date, the portion

of   such   fiscal   quarter   after   the   Closing   Date,   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.

 

     "Record   Date"   means   the   date   established   by   the   General Partner for

determining   (a) the identity of the Record Holders entitled to notice of, or to

vote   at,   any meeting of Limited Partners or entitled to vote by ballot or give

approval   of   Partnership   action   in   writing   without a meeting or entitled to

exercise   rights   in respect of any lawful action of Limited Partners or (b) the

identity   of Record Holders entitled to receive any report or distribution or to

participate   in   any   offer.

 

     "Record   Holder" means the Person in whose name a Common Unit is registered

on the books of the Transfer Agent as of the opening of business on a particular

Business   Day,   or   with   respect to other Partnership Securities, the Person in

whose   name any such other Partnership Security is registered on the books which

the   General Partner has caused to be kept as of the opening of business on such

Business   Day.

 

     "Redeemable   Interests"   means   any   Partnership   Interests   for   which   a

redemption   notice   has   been   given,   and   has   not been withdrawn, pursuant to

Section   4.10.

 

     "Registration   Statement" means the Registration Statement on Form 10 (File

No. 0-50394) as it has been or as it may be amended or supplemented from time to

time,   filed   by the Partnership with the Commission under the Securities Act to

register   the   Common   Units   distributed   in   the   Distribution.

 

     "Remaining   Net   Positive   Adjustments"   means as of the end of any taxable

period,   (i) with respect to the Unitholders holding Common Units, the excess of

(a)   the   Net   Positive

 

 

                                       16

<PAGE>

Adjustments of the Unitholders holding Common Units as of the end of such period

over   (b)   the   sum of those Partners' Share of Additional Book Basis Derivative

Items   for   each   prior taxable period, (ii) with respect to the General Partner

(as   holder of the General Partner Interest), the excess of (a) the Net Positive

Adjustments of the General Partner as of the end of such period over (b) the sum

of   the   General   Partner's Share of Additional Book Basis Derivative Items with

respect to the General Partner Interest for each prior taxable period, and (iii)

with   respect to the holders of Incentive Distribution Rights, the excess of (a)

the   Net Positive Adjustments of the holders of Incentive Distribution Rights as

of the end of such period over (b) the sum of the Share of Additional Book Basis

Derivative   Items   of   the holders of the Incentive Distribution Rights for each

prior   taxable   period.

 

     "Required   Allocations"   means (a) any limitation imposed on any allocation

of   Net   Losses   or   Net   Termination   Losses   under   Section 6.1(b) 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),   6.1(d)(ix)   or   6.1(d)(x).

 

     "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.

 

     "Second Liquidation Target Amount" has the meaning assigned to such term in

Section   6.1(c)(i)(D).

 

     "Second   Target   Distribution"   means $0.362 per Unit per Quarter (or, with

respect   to the period commencing on the Closing Date and ending on the last day

of   the calendar quarter that includes the Closing Date, it means the product of

$0.362 multiplied by a fraction of which the numerator is equal to the number of

days   in   such period and of which the denominator is 91), subject to adjustment

in   accordance   with   Sections   6.6   and   6.9.

 

     "Securities Act" means the Securities Act of 1933, as amended, supplemented

or   restated   from   time   to   time   and   any   successor   to   such   statute.

 

     "Share   of Additional Book Basis Derivative Items" means in connection with

any allocation of Additional Book Basis Derivative Items for any taxable period,

(i)   with respect to the Unitholders holding Common Units, the amount that bears

the   same   ratio   to   such   Additional   Book   Basis   Derivative   Items   as   the

Unitholders'   Remaining   Net   Positive   Adjustments as of the end of such period

bears   to the Aggregate Remaining Net Positive Adjustments as of that time, (ii)

with respect to the General Partner (as holder of the General Partner Interest),

the   amount   that   bears the same ratio to such Additional Book Basis Derivative

Items   as the General Partner's Remaining Net Positive Adjustments as of the end

of   such   period   bears to the Aggregate Remaining Net Positive Adjustment as of

that time, and (iii) with respect to the Partners holding Incentive Distribution

Rights,   the   amount   that   bears   the   same ratio to such Additional Book Basis

Derivative   Items   as   the   Remaining   Net   Positive Adjustments of the Partners

holding   the

 

 

                                       17

<PAGE>

Incentive   Distribution   Rights   as   of   the   end   of   such   period bears to the

Aggregate   Remaining   Net   Positive   Adjustments   as   of   that   time.

 

     "Special   Approval"   means   approval   by   a   majority of the members of the

Conflicts   Committee.

 

     "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   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).

 

     "Third   Liquidation Target Amount" has the meaning assigned to such term in

Section   6.1(c)(i)(E).

 

     "Third   Target   Distribution"   means   $0.462 per Unit per Quarter (or, with

respect   to the period commencing on the Closing Date and ending on the last day

of   the calendar quarter that includes the Closing Date, it means the product of

$0.462 multiplied by a fraction of which the numerator is equal to the number of

days   in   such period and of which the denominator is 91), subject to adjustment

in   accordance   with   Sections   6.6   and   6.9.

 

     "Trading   Day"   means   a   day   on   which   the principal National Securities

Exchange   on   which   such   Limited   Partner Interests of any class are listed or

admitted   to   trading   is   open   for   the transaction of business or, if Limited

Partner   Interests   of   a   class   are   not   listed or admitted to trading on any

National   Securities   Exchange,   a day on which banking institutions in New York

City   generally   are   open.

 

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

 

     "Transfer   Agent" means such bank, trust company or other Person (including

the General Partner or one of its Affiliates) as shall be appointed from time to

time   by   the   Partnership to act as registrar and transfer agent for the Common

Units;   provided   that   if   no   Transfer   Agent   is

 

 

                                       18

<PAGE>

specifically   designated   for   any   other   Partnership   Securities,   the General

Partner   shall   act   in   such   capacity.

 

     "Transfer   Application"   means an application and agreement for transfer of

Units   in   the   form   set   forth   on   the   back   of   a   Certificate or in a form

substantially   to   the   same   effect   in   a   separate   instrument.

 

     "Unit"   means   a   Partnership   Security   that is designated as a "Unit" and

shall   include Common Units but shall not include (i) a General Partner Interest

or   (ii)   Incentive   Distribution   Rights.

 

     "Unit   Majority" means at least a majority of the Outstanding Common Units.

 

     "Unitholders"   means   the   holders   of   Units.

 

     "Unpaid MQD" has the meaning assigned to such term in Section 6.1(c)(i)(B).

 

     "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)).

 

     "Unrecovered   Capital"   means   at   any   time,   with   respect to a Unit, the

Initial   Unit   Capital   Account   less   the sum of all distributions constituting

Capital   Surplus   theretofore   made in respect of an Initial Common Unit and any

distributions   of cash (or the Net Agreed Value of any distributions in kind) in

connection   with   the dissolution and liquidation of the Partnership theretofore

made   in   respect   of   an   Initial   Common Unit, adjusted as the General Partner

determines   to be appropriate to give effect to any distribution, subdivision or

combination   of   such   Units.

 

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

consistently   applied.

 

     "Withdrawal   Opinion   of   Counsel" has the meaning assigned to such term in

Section   11.1(b).

 

     "Working   Capital   Borrowings"   means   borrowings   used   solely for working

capital   purposes   or to pay distributions to Partners made pursuant to a credit

facility   or   other arrangement to the extent such borrowings are required to be

reduced   to   a   relatively   small amount each year (or for the year in which the

Initial   Offering   is   consummated, the 12-month period beginning on the Closing

Date)   for   an   economically   meaningful   period   of   time.

 

 

                                       19

<PAGE>

     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   General   Partner   and   the Organizational

                      ---------

Limited   Partner have previously formed the Partnership as a limited partnership

pursuant   to the provisions of the Delaware Act and hereby amend and restate the

original   Agreement   of Limited Partnership of Rio Vista Energy Partners L.P. 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 Delaware 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 "Rio Vista

                      ----

Energy   Partners   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.,"   "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 Limited Partners of such change in the next regular

communication   to   the   Limited   Partners.

 

     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 Delaware shall be located at 615 South

DuPont   Highway,   City   of   Dover,   County   of   Kent,   Delaware   19901,   and the

registered   agent   for   service   of   process   on the Partnership in the State of

Delaware   at   such   registered   office   shall   be   Capitol   Services,   Inc.   The

principal   office of the Partnership shall be located at 820 Gessner Road, Suite

1285,   Houston,   Texas 77024 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

Delaware   as   the General Partner deems necessary or appropriate. The address of

the   General Partner shall be 820 Gessner Road, Suite 1285, Houston, Texas 77024

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) own the equity of

the   general   partner   of   the   Operating   Partnership and to serve as a limited

partner   of   the Operating Partnership and, in connection therewith, to exercise

all   the   rights   and   powers   conferred   upon   the   Partnership   as   a

 

 

                                       20

<PAGE>

partner   of   the   Operating   Partnership   pursuant   to the Operating Partnership

Agreement   or   otherwise,   (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 Operating

Partnership   is permitted to engage in by the Operating Partnership Agreement or

that   its   subsidiaries   are   permitted   to engage in by their limited liability

company   or partnership agreements 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 Delaware 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 a Subsidiary or a Partnership activity that generates qualifying

income   or   (ii)   enhances   the   operations   of   an   activity   of   the Operating

Partnership,   and   (d)   do   anything   necessary or appropriate to the foregoing,

including   the   making   of capital contributions or loans to a Group Member. 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.

 

     SECTION   2.6      Power of Attorney.   Each Limited 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   his   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 Delaware 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

 

 

                                       21

<PAGE>

          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 Securities issued pursuant to Section

          5.6;   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 Section 13.3

          or any other 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.   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 heirs, successors,

          assigns and personal representatives. Each 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 Limited Partner or Assignee hereby waives, to

          the   maximum extent permitted by law, 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.

 

 

                                        22

<PAGE>

     SECTION   2.7      Term.   The   term   of   the   Partnership   commenced upon the

                      ----

filing of the Certificate of Limited Partnership in accordance with the Delaware

Act   and shall continue in existence until the 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   Delaware   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   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.

 

 

                                       23

<PAGE>

                                   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   the   Delaware   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 Delaware 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, manager, member, general

partner,   agent   or   trustee of the General Partner or any of its Affiliates, or

any   officer,   director,   employee,   manager,   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 17-303(a) of the

Delaware   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:

 

          (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

 

 

                                       24

<PAGE>

               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

Partnership   Group, (B) could damage 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

 

  CERTIFICATES; RECORD HOLDERS; TRANSFER OF PARTNERSHIP INTERESTS; REDEMPTION OF

                              PARTNERSHIP INTERESTS

 

     SECTION   4.1      Certificates.   Upon   the   Partnership's issuance of Common

                      ------------

Units to any Person, the Partnership shall issue one or more Certificates in the

name   of   such   Person   evidencing   the number of such Units being so issued. In

addition, (a) upon the General Partner's request, the Partnership shall issue to

it   one   or   more Certificates in the name of the General Partner evidencing its

interests   in   the   Partnership   and   (b)   upon the request of any Person owning

Incentive   Distribution   Rights   or   any other Partnership Securities other than

Common   Units,   the   Partnership   shall   issue   to   such   Person   one   or   more

certificates   evidencing such Incentive Distribution Rights or other Partnership

Securities other than Common Units.   Certificates shall be executed on behalf of

the   Partnership   by   the Chairman of the Board, President or any Vice President

and   the   Secretary or any Assistant Secretary of the General Partner. No Common

Unit   Certificate shall be valid for any purpose until it has been countersigned

by   the Transfer Agent; provided, however, that if the General Partner elects to

issue   Common   Units in global form, the Common Unit Certificates shall be valid

upon receipt of a certificate from the Transfer Agent certifying that the Common

Units   have   been   duly   registered   in   accordance   with   the directions of the

Partnership.

 

     SECTION   4.2      Mutilated,   Destroyed,   Lost   or   Stolen   Certificates.

                      ------------------------------------------------------

 

     (a)   If any mutilated Certificate is surrendered to the Transfer Agent, the

          appropriate   officers   of   the   General   Partner   on   behalf   of   the

          Partnership   shall   execute,   and   the

 

 

                                       25

<PAGE>

          Transfer   Agent   shall countersign and deliver in exchange therefor, a

          new   Certificate   evidencing   the   same number and type of Partnership

          Securities   as   the   Certificate   so   surrendered.

 

     (b)   The   appropriate   officers   of   the   General   Partner on behalf of the

          Partnership   shall   execute   and deliver, and the Transfer Agent shall

          countersign   a   new Certificate in place of any Certificate previously

          issued   if   the   Record   Holder   of   the   Certificate:

 

          (i)   makes   proof   by affidavit, in form and substance satisfactory to

               the   General   Partner,   that   a previously issued Certificate has

               been   lost,   destroyed   or   stolen;

 

          (ii) requests   the   issuance   of   a new Certificate before the General

               Partner   has   notice   that the Certificate has been acquired by a

               purchaser   for   value   in   good   faith   and   without notice of an

               adverse   claim;

 

         (iii) if   requested   by   the General Partner, delivers to   the   General

               Partner a bond, in form and substance satisfactory to the General

               Partner,   with   surety or sureties and with fixed or open penalty

               as   the   General   Partner   may   reasonably   direct,   in   its sole

               discretion,   to   indemnify   the   Partnership,   the   Partners, the

               General Partner and the Transfer Agent against any claim that may

               be   made   on account of the alleged loss, destruction or theft of

               the   Certificate;   and

 

          (iv) satisfies   any   other   reasonable   requirements   imposed   by   the

               General   Partner.

 

     If a Limited Partner or Assignee fails to notify the General Partner within

a   reasonable   time   after   he has notice of the loss, destruction or theft of a

Certificate,   and a transfer of the Limited Partner Interests represented by the

Certificate   is   registered   before   the Partnership, the General Partner or the

Transfer Agent receives such notification, the Limited Partner or Assignee shall

be   precluded from making any claim against the Partnership, the General Partner

or   the   Transfer   Agent   for   such   transfer   or   for   a   new   Certificate.

 

     (c)   As   a   condition   to   the   issuance   of any new Certificate under this

          Section   4.2,   the   General   Partner   may require the payment of a sum

          sufficient   to   cover any tax or other governmental charge that may be

          imposed in relation thereto and any other expenses (including the fees

          and   expenses   of   the Transfer Agent) reasonably connected therewith.

 

     SECTION   4.3      Record   Holders.   The   Partnership   shall   be   entitled to

                      ---------------

recognize   the   Record   Holder   as   the   Partner or Assignee with respect to any

Partnership   Interest   and,   accordingly,   shall   not   be bound to recognize any

equitable or other claim to or interest in such Partnership Interest on the part

of   any other Person, regardless of whether the Partnership shall have actual or

other   notice   thereof,   except   as   otherwise provided by law or any applicable

rule,   regulation,   guideline or requirement of any National Securities Exchange

on which such Partnership Interests are listed for trading. Without limiting the

foregoing,   when   a   Person   (such   as   a   broker,   dealer,   bank,

 

 

                                       26

<PAGE>

trust   company   or   clearing corporation or an agent of any of the foregoing) is

acting   as   nominee,   agent or in some other representative capacity for another

Person   in   acquiring   and/or   holding   Partnership   Interests,   as   between the

Partnership   on   the   one   hand,   and   such   other   Persons   on   the other, such

representative   Person (a) shall be the Partner or Assignee (as the case may be)

of   record and beneficially, (b) must execute and deliver a Transfer Application

and   (c)   shall   be   bound   by   this   Agreement   and   shall   have the rights and

obligations   of a Partner or Assignee (as the case may be) hereunder and as, and

to   the   extent,   provided   for   herein.

 

     SECTION   4.4       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 of the Partnership, by which the holder of a Limited

Partner   Interest assigns such Limited Partner Interest to another Person who is

or   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.

 

     (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   member of the General Partner of any or all of the limited

liability   company interests of the General Partner.   At any time, any member of

the   General   Partner   may sell or transfer all or part of such member's limited

liability   company interests in the General Partner without Unitholder approval.

 

     SECTION   4.5      Registration   and   Transfer   of Limited Partner Interests.

                      ---------------------------------------------------------

 

     (a)      The   Partnership   shall   keep   or cause to be kept on behalf of the

Partnership   a   register   in which, subject to such reasonable regulations as it

may   prescribe   and subject to the provisions of Section 4.5(b), the Partnership

will provide for the registration and transfer of Limited Partner Interests. The

Transfer   Agent is hereby appointed registrar and transfer agent for the purpose

of   registering   Common   Units   and   transfers   of   such   Common Units as herein

provided.   The   Partnership   shall   not   recognize   transfers   of   Certificates

evidencing   Limited   Partner Interests unless such transfers are effected in the

manner   described   in   this   Section   4.5.   Upon   surrender of a Certificate for

registration   of   transfer   of   any   Limited   Partner   Interests   evidenced by a

Certificate,   and   subject   to the provisions of Section 4.5(b), the appropriate

officers   of   the General Partner on behalf of the Partnership shall execute and

deliver,   and   in the case of Common Units, the Transfer Agent shall countersign

and   deliver,   in   the   name   of   the   holder   or   the   designated transferee or

transferees,   as required pursuant to the holder's instructions, one or more new

Certificates   evidencing   the   same aggregate number and type of Limited Partner

Interests   as   was   evidenced   by   the   Certificate   so   surrendered.

 

 

                                       27

<PAGE>

     (b)      Except   as otherwise provided in Section 4.9, the Partnership shall

not   recognize   any transfer of Limited Partner Interests until the Certificates

evidencing   such   Limited   Partner Interests are surrendered for registration of

transfer   and   such   Certificates are accompanied by a Transfer Application duly

executed by the transferee (or the transferee's attorney-in-fact duly authorized

in   writing).   No   charge shall be imposed by the Partnership for such transfer;

provided,   that as a condition to the issuance of any new Certificate under this

Section   4.5,   the   Partnership   may   require the payment of a sum sufficient to

cover   any   tax   or   other   governmental charge that may be imposed with respect

thereto.

 

     (c)      Limited   Partner   Interests   may   be transferred only in the manner

described in this Section 4.5. The transfer of any Limited Partner Interests and

the   admission   of   any new Limited Partner shall not constitute an amendment to

this   Agreement.

 

     (d)      Until admitted as a Substituted Limited Partner pursuant to Section

10.2,   the   Record   Holder of a Limited Partner Interest shall be an Assignee in

respect   of   such   Limited   Partner   Interest.   Limited   Partners   may   include

custodians,   nominees   or   any   other   individual   or   entity   in its own or any

representative   capacity.

 

     (e)      A   transferee   of   a Limited Partner Interest who has completed and

delivered a Transfer Application shall be deemed to have (i) requested admission

as a Substituted Limited Partner, (ii) agreed to comply with and be bound by and

to   have   executed   this   Agreement,   (iii)   represented and warranted that such

transferee   has   the   right,   power   and   authority   and,   if an individual, the

capacity   to   enter into this Agreement, (iv) granted the powers of attorney set

forth   in   this   Agreement and (v) given the consents and approvals and made the

waivers   contained   in   this   Agreement.

 

     (f)      The   General Partner and its Affiliates shall have the right at any

time   to   transfer   their   Common   Units,   if   any,   to   one   or   more   Persons.

 

     SECTION 4.6      Transfer of the General Partner's General Partner Interest.

                     ----------------------------------------------------------

 

     (a)      Subject   to   Section   4.6(c)   below, prior to October 31, 2008, the

General   Partner   shall   not   transfer   all   or   any part of its General Partner

Interest   to   a   Person   unless such transfer (i) has been approved by the prior

written consent or vote of the holders of at least a majority of the Outstanding

Common   Units   (excluding   Common   Units   held   by   the   General Partner and its

Affiliates)   or   (ii)   is   of all, but not less than all, of its General Partner

Interest   to   (A) an Affiliate of the General Partner (other than an individual)

or   (B)   another Person (other than an individual) in connection with the merger

or   consolidation of the General Partner with or into another Person (other than

an   individual)   or   the transfer by the General Partner of all or substantially

all   of   its   assets   to   another   Person   (other   than   an   individual).

 

     (b)       Subject   to Section 4.6(c) below, on or after October 31, 2008, the

General   Partner may transfer all or any of its General Partner Interest without

Unitholder   approval.

 

     (c)      Notwithstanding anything herein to the contrary, no transfer by the

General   Partner   of   all or any part of its General Partner Interest to another

Person   shall be permitted unless (i) the transferee agrees to assume the rights

and   duties   of   the   General   Partner   under   this

 

 

                                       28

<PAGE>

Agreement   and   to   be   bound   by   the   provisions   of   this Agreement, (ii) the

Partnership   receives   an Opinion of Counsel that such transfer would not result

in   the   loss   of   limited   liability   of   any Limited Partner or of any limited

partner   of   the Operating Partnership or cause the Partnership or the Operating

Partnership   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) and (iii) such transferee also agrees to

purchase   all   (or   the   appropriate   portion   thereof,   if   applicable)   of the

partnership or membership interest of the General Partner as the general partner

or   managing   member,   if   any,   of   each   other   Group Member. In the case of a

transfer   pursuant to and in compliance with this Section 4.6, the transferee or

successor   (as   the   case may be) shall, subject to compliance with the terms of

Section   10.3, be admitted to the Partnership as the General Partner immediately

prior   to   the   transfer   of   the   Partnership Interest, and the business of the

Partnership   shall   continue   without   dissolution.

 

     SECTION   4.7      Transfer   of   Incentive   Distribution   Rights.   Prior   to

                       ---------------------------------------------

October   31, 2008, a holder of Incentive Distribution Rights may transfer any or

all of the Incentive Distribution Rights held by such holder without any consent

of the Unitholders (a) to an Affiliate of such holder (other than an individual)

or   (b)   to another Person (other than an individual) in connection with (i) the

merger   or consolidation of such holder of Incentive Distribution Rights with or

into   such   other   Person   or   (ii)   the   transfer   by   such   holder   of   all or

substantially all of its assets to such other Person or (iii) the sale of all or

substantially   all   of the equity interests of such holder to such other Person.

Any   other   transfer   of   the Incentive Distribution Rights prior to October 31,

2008,   shall require the prior approval of holders of at least a majority of the

Outstanding Common Units (excluding Common Units held by the General Partner and

its   Affiliates).   On   or   after   October   31,   2008,   any   holder   of Incentive

Distribution Rights may transfer any or all of its Incentive Distribution Rights

without Unitholder approval. Notwithstanding anything herein to the contrary, no

transfer   of   Incentive Distribution Rights to another Person shall be permitted

unless   the   transferee   agrees to be bound by the provisions of this Agreement.

 

     SECTION   4.8      Restrictions   on   Transfers.

                      ---------------------------

 

     (a)      Except as provided in Section 4.8(d) below, but notwithstanding the

other   provisions   of   this Article IV, no transfer of any Partnership Interests

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   Operating   Partnership   under   the   laws   of   the   jurisdiction   of its

formation,   or   (iii)   cause   the Partnership or the Operating Partnership 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).

 

     (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

Operating   Partnership   becoming   an   association   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;   provided,

 

 

                                       29

<PAGE>

however,   that   any amendment that the General Partner believes, in the exercise

of   its   reasonable   discretion,   could result in the delisting or suspension of

trading   of   any   class   of   Limited Partner Interests on the principal National

Securities   Exchange   on   which   such class of Limited Partner Interests is then

traded   must be approved, prior to such amendment being effected, by the holders

of   at   least   a   majority   of the Outstanding Limited Partner Interests of such

class.

 

     (c)      [RESERVED]

 

     (d)      Nothing   contained   in   this   Article   IV,   or   elsewhere   in   this

Agreement,   shall   preclude   the   settlement   of   any   transactions   involving

Partnership   Interests   entered   into   through   the   facilities   of any National

Securities   Exchange on which such Partnership Interests are listed for trading.

 

     SECTION   4.9      Citizenship   Certificates;   Non-citizen   Assignees.

                      --------------------------------------------------

 

     (a)      If   any Group Member is or becomes subject to any federal, state or

local   law   or   regulation   that, in the reasonable determination of the General

Partner,   creates   a   substantial   risk   of   cancellation   or   forfeiture of any

property   in   which   the   Group Member has an interest based on the nationality,

citizenship   or   other   related   status   of   a   Limited Partner or Assignee, the

General   Partner   may   request any Limited Partner or Assignee to furnish to the

General   Partner,   within   30   days   after   receipt of such request, an executed

Citizenship   Certification or such other information concerning his nationality,

citizenship or other related status (or, if the Limited Partner or Assignee is a

nominee   holding for the account of another Person, the nationality, citizenship

or other related status of such Person) as the General Partner may request. If a

Limited   Partner   or Assignee fails to furnish to the General Partner within the

aforementioned   30-day   period such Citizenship Certification or other requested

information   or   if   upon   receipt   of   such   Citizenship Certification or other

requested   information   the   General   Partner   determines,   with   the   advice of

counsel,   that   a   Limited   Partner   or Assignee is not an Eligible Citizen, the

Partnership Interests owned by such Limited Partner or Assignee shall be subject

to   redemption   in   accordance with the provisions of Section 4.10. In addition,

the   General Partner may require that the status of any such Partner or Assignee

be changed to that of a Non-citizen Assignee and, thereupon, the General Partner

shall   be   substituted   for   such Non-citizen Assignee as the Limited Partner in

respect   of   his   Limited   Partner   Interests.

 

     (b)      The   General   Partner shall, in exercising voting rights in respect

of   Limited   Partner   Interests   held   by it on behalf of Non-citizen Assignees,

distribute   the   votes   in   the   same ratios as the votes of Partners (including

without   limitation the General Partner) in respect of Limited Partner Interests

other   than   those   of   Non-citizen   Assignees   are cast, either for, against or

abstaining   as   to   the   matter.

 

     (c)      Upon   dissolution   of the Partnership, a Non-citizen Assignee shall

have   no   right   to   receive a distribution in kind pursuant to Section 12.4 but

shall   be   entitled   to   the   cash equivalent thereof, and the Partnership shall

provide   cash   in exchange for an assignment of the Non-citizen Assignee's share

of   the   distribution   in kind. Such payment and assignment shall be treated for

Partnership   purposes   as   a   purchase   by   the Partnership from the Non-citizen

Assignee   of his Limited Partner Interest (representing his right to receive his

share   of   such   distribution   in   kind).

 

 

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<PAGE>

     (d)      At   any   time   after   he can and does certify that he has become an

Eligible   Citizen,   a   Non-citizen Assignee may, upon application to the General

Partner,   request admission as a Substituted Limited Partner with respect to any

Limited   Partner Interests of such Non-citizen Assignee not redeemed pursuant to

Section   4.10,   and   upon   his   admission   pursuant to Section 10.2, the General

Partner   shall   cease   to   be deemed to be the Limited Partner in respect of the

Non-citizen   Assignee's   Limited   Partner   Interests.

 

     SECTION   4.10      Redemption   of   Partnership   Interests   of   Non-citizen

                       -------------------------------------------------------

Assignees.

----------

 

     (a)      If   at   any   time   a Limited Partner or Assignee fails to furnish a

Citizenship   Certification   or   other   information   requested   within the 30-day

period   specified   in   Section   4.9(a),   or   if upon receipt of such Citizenship

Certification   or   other   information   the   General Partner determines, with the

advice   of   counsel,   that   a   Limited   Partner   or   Assignee is not an Eligible

Citizen, the Partnership may, unless the Limited Partner or Assignee establishes

to the satisfaction of the General Partner that such Limited Partner or Assignee

is   an Eligible Citizen or has transferred his Partnership Interests to a Person

who   is an Eligible Citizen and who furnishes a Citizenship Certification to the

General Partner prior to the date fixed for redemption as provided below, redeem

the   Partnership   Interest   of   such   Limited   Partner   or   Assignee as follows:

 

     (i)   The General Partner shall, not later than the 30th day before the date

          fixed for redemption, give notice of redemption to the Limited Partner

          or   Assignee,   at   his   last   address designated on the records of the

          Partnership   or   the   Transfer Agent, by registered or certified mail,

          postage prepaid. The notice shall be deemed to have been given when so

          mailed.   The   notice   shall specify the Redeemable Interests, the date

          fixed   for   redemption,   the   place   of   payment,   that payment of the

          redemption   price   will   be   made   upon   surrender   of the Certificate

          evidencing   the   Redeemable   Interests   and that on and after the date

          fixed   for redemption no further allocations or distributions to which

          the Limited Partner or Assignee would otherwise be entitled in respect

          of   the   Redeemable   Interests   will   accrue   or   be   made.

 

     (ii) The   aggregate   redemption   price for Redeemable Interests shall be an

          amount equal to the Current Market Price (the date of determination of

          which   shall   be   the   date   fixed   for redemption) of Limited Partner

          Interests   of   the class to be so redeemed multiplied by the number of

          Limited   Partner   Interests   of   each   such   class   included among the

          Redeemable   Interests.   The   redemption   price   shall   be paid, in the

          discretion   of   the   General   Partner,   in   cash   or   by delivery of a

          promissory   note   of   the   Partnership   in the principal amount of the

          redemption   price,   bearing   interest   at the rate of 10% annually and

          payable   in three equal annual installments of principal together with

          accrued   interest,   commencing   one   year   after   the redemption date.

 

    (iii) Upon surrender by or on behalf of the Limited Partner or Assignee,   at

          the   place   specified   in the notice of redemption, of the Certificate

          evidencing   the   Redeemable   Interests,   duly   endorsed   in   blank   or

          accompanied   by   an   assignment   duly   executed   in blank, the Limited

          Partner   or   Assignee   or   his duly authorized representative shall be

          entitled   to   receive   the   payment   therefor.

 

 

                                       31

<PAGE>

      (iv) After   the   redemption   date,   Redeemable   Interests   shall   no longer

          constitute   issued   and   Outstanding   Limited   Partner   Interests.

 

     (b)      The   provisions   of   this   Section 4.10 shall also be applicable to

Limited   Partner Interests held by a Limited Partner or Assignee as nominee of a

Person   determined   to   be   other   than   an   Eligible   Citizen.

 

     (c)      Nothing   in   this   Section   4.10   shall   prevent the recipient of a

notice   of   redemption from transferring his Limited Partner Interest before the

redemption   date   if   such transfer is otherwise permitted under this Agreement.

Upon   receipt   of   notice of such a transfer, the General Partner shall withdraw

the   notice   of   redemption,   provided   the   transferee   of such Limited Partner

Interest   certifies   to the satisfaction of the General Partner in a Citizenship

Certification   delivered   in connection with the Transfer Application that he is

an   Eligible   Citizen.   If the transferee fails to make such certification, such

redemption   shall   be   effected   from   the transferee on the original redemption

date.

 

                                    ARTICLE V

 

           CAPITAL CONTRIBUTIONS AND ISSUANCE OF PARTNERSHIP INTERESTS

 

     SECTION   5.1      Organizational   Contributions.   In   connection   with   the

                      -----------------------------

formation   of   the   Partnership   under   the   Delaware   Act,   the General Partner

purchased   a   2%   General Partner Interest in the Partnership for $20.00 and has

been   admitted   as   a General Partner of the Partnership, and the Organizational

Limited   Partner   purchased   Common   Units   representing   a   98% Limited Partner

Interest   in   the   Partnership   for   $980.00   and has been admitted as a Limited

Partner   of the Partnership.   As of the Closing Date, the Organizational Limited

Partner   shall   cease   to   be   a   Limited   Partner   of   the   Partnership.

 

     SECTION   5.2      Contributions   by   the General Partner and its Affiliates.

                      ---------------------------------------------------------

 

     (a)      On   or   prior   to the Closing Date and pursuant to the Contribution

Agreement, (i) the General Partner shall convey to the Partnership, $1,000.00 in

exchange   for   the   Incentive   Distribution   Rights, and (ii) the Organizational

Limited Partner shall contribute to the Partnership its limited partner interest

in   the   Operating   Partnership   as   a   Capital   Contribution.

 

     (b)      Upon   the   issuance   of any additional Limited Partner Interests by

the   Partnership,   the   General   Partner   shall   be   required to make additional

Capital   Contributions   equal   to   2/98ths   of   any   amount   contributed   to the

Partnership   by   the   Limited   Partners   in exchange for such additional Limited

Partner Interests. Except as set forth in the immediately preceding sentence and

Article   XII,   the General Partner shall not be obligated to make any additional

Capital   Contributions   to   the   Partnership.

 

     SECTION 5.3      Contributions by Initial Limited Partners and Distributions

                     -----------------------------------------------------------

to   the   General   Partner.

-------------------------

 

     (a)   [RESERVED]

 

 

                                       32

<PAGE>

     (b)   [RESERVED]

 

     (c)   [RESERVED]

 

     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.   Any   such   return shall be a compromise to which all

Partners   and   Assignees   agree   within   the meaning of Section 17-502(b) of the

Delaware   Act.

 

     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