Exhibit 10.9


                              OPERATING AGREEMENT

                                       OF

                        BEAR PAW OPERATING COMPANY, LLC


                        EFFECTIVE AS OF JANUARY 1, 1996

 
                              TABLE OF CONTENTS

                                      TO

                              OPERATING AGREEMENT
                                       OF
                        BEAR PAW OPERATING COMPANY, LLC
                                        

                                   ARTICLE I.
                                  DEFINITIONS
                                  -----------



                                               
              1.1.  "Additional Member".............. 1
                     -----------------
              1.2.  "Capital Account"................ 1
                     ---------------
              1.3.  "Capital Contribution"........... 1
                     --------------------
              1.4.  "Code"........................... 1
                     ----
              1.5.  "Company"........................ 1
                     -------
              1.6.  "Deficit Capital Account"........ 1
                     -----------------------
              1.7.  "Distributable Cash"............. 2
                     ------------------
              1.9.  "Entity"......................... 2
                     ------
             1.10.  "Fiscal Year".................... 2
                     -----------
             1.11.  "Initial Capital Contribution"... 2
                     ----------------------------
             1.12.  "Initial Term.................... 2
                     ------------
             1.13.  "Interest"....................... 2
                     --------
             1.14.  "Manager"........................ 2
                     -------
             1.15.  "Member"......................... 2
                     ------
             1.16.  "Net Profits".................... 3
                     -----------
             1.17.  "Net Losses"..................... 3
                     ----------
             1.18.  "Operating Agreement"............ 3
                     -------------------
             1.19.  "Persons"........................ 3
                     -------
             1.20.  "Reserves"....................... 3
                     --------
             1.21.  "Selling Member"................. 3
                     --------------
             1.22.  "Substitute Member".............. 3
                     -----------------
             1.24.  "Colorado Act"................... 3
                     ------------

                                  ARTICLE II.
                              FORMATION OF COMPANY
                              --------------------


 
                                               
              2.1.  Formation........................ 4
                    ---------
              2.2.  Name............................. 4
                    ----
              2.3.  Principal Place of Business...... 4
                    ---------------------------
              2.4.  Registered Office and Registered
                    --------------------------------
                    Agent............................ 4
                    -----
              2.5.  Term............................. 4
                    ----

                               ARTICLE III.
                     PERMITTED BUSINESSES OF COMPANY
                     -------------------------------


 
 
                                  ARTICLE IV.
                         NAMES AND ADDRESSES OF MEMBERS
                         ------------------------------
                                        

                                   ARTICLE V.
                          RIGHTS AND DUTIES OF MANAGER
                          ----------------------------


                                                         
              5.1.  Management................................. 5
                    ----------
              5.2.  Number, Tenure and Qualifications.......... 5
                    ---------------------------------
              5.3.  Certain Powers of the Manager.............. 6
                    -----------------------------
              5.4.  Restrictions on Authority of the Manager... 7
                    ----------------------------------------
              5.5.  Manager's and Members' Duties to Company... 7
                    ----------------------------------------
              5.6.  Bank Accounts.............................. 7
                    -------------
              5.7.  Liability for Certain Acts................. 8
                    --------------------------
              5.8.  Indemnity of the Manager................... 8
                    ------------------------
              5.9.  Resignation................................ 8
                    -----------
             5.10.  Removal...................................  8
                    -------
             5.11.  Vacancies.................................. 8
                    ---------
             5.12.  Salaries, Management Fees and Other
                    -----------------------------------
                    Compensation............................... 9
                    ------------

                                  ARTICLE VI.
                       RIGHTS AND OBLIGATIONS OF MEMBERS
                       ---------------------------------



                                                         
              6.1.  Limitation of Liability.................... 9
                    -----------------------
              6.2.  Company Debt Liability..................... 9
                    ----------------------
              6.3.  List of Members............................ 9
                    ---------------
              6.4.  Company Books.............................. 9
                    -------------
              6.5.  Loans by Company to Bear Paw............... 9
                    ----------------------------

                                  ARTICLE VII.
                              MEETINGS OF MEMBERS
                              -------------------


                                                        
              7.1.  Annual Meeting............................ 10
                    --------------
              7.2.  Special Meetings.......................... 10
                    ----------------
              7.3.  Place of Meetings......................... 10
                    -----------------
              7.4.  Notice of Meetings........................ 10
                    ------------------
              7.5.  Meeting of All Members.................... 10
                    ----------------------
              7.6.  Record Date............................... 10
                    -----------
              7.7.  Quorum.................................... 11
                    ------
              7.8.  Manner of Acting.......................... 11
                    ----------------
              7.9.  Proxies................................... 11
                    -------
             7.10.  Action by Members Without a Meeting....... 11
                    -----------------------------------
             7.11.  Waiver of Notice.......................... 12
                    ----------------
 

 
 
                                 ARTICLE VIII.
               CONTRIBUTIONS TO THE COMPANY AND CAPITAL ACCOUNTS
               -------------------------------------------------


                                                   
             8.1.  Members' Capital Contributions........... 12
                   ------------------------------
             8.2.  Capital Accounts......................... 14
                   ----------------
             8.3.  Withdrawal or Reduction of Member's
                   -----------------------------------
                   Contributions to Capital................. 15
                   ------------------------

                                  ARTICLE IX.
          ALLOCATIONS, DISTRIBUTIONS, INCOME TAX ELECTIONS AND REPORTS
          ------------------------------------------------------------



                                                      
             9.1.  Allocations of Profits and Losses from
                   --------------------------------------
                   Operations............................... 15
                   ----------
             9.2.  Special Allocation to Capital Accounts... 15
                   --------------------------------------
             9.3.  Distributions............................ 17
                   -------------
             9.4.  Limitation Upon Distributions............ 17
                   -----------------------------
             9.5.  Interest On and Return of Capital
                   ---------------------------------
                   Contributions............................ 17
                   -------------
             9.6.  Loans to Company......................... 18
                   ----------------
             9.7.  Accounting Period........................ 18
                   -----------------
             9.8.  Records, Audits and Reports.............. 18
                   ---------------------------
             9.9.  Returns and Other Elections.............. 18
                   ---------------------------

                                   ARTICLE X.
                        RESTRICTIONS ON TRANSFERABILITY
                        -------------------------------



                                                      
             10.1. General Restrictions..................... 19
                   --------------------
             10.2. Additional Transfer Restrictions......... 19
                   --------------------------------
             10.3. Restrictions Consistent with Law......... 19
                   --------------------------------

                                  ARTICLE XI.
                               ADDITIONAL MEMBERS
                               ------------------
                                        
                                  ARTICLE XII.
                          DISSOLUTION AND TERMINATION
                          ---------------------------



                                                       
             12.1. Dissolution.............................. 20
                   -----------
             12.2. Effect of Filing of Dissolving
                   ------------------------------
                   Statement................................ 21
                   ---------
             12.3. Winding Up, Liquidation and
                   --------------------------- 
                   Distribution of Assets................... 21
                   ----------------------
             12.4. Articles of Dissolution.................. 22
                   -----------------------
             12.5. Filing of Articles of Dissolution........ 23
                   ---------------------------------
             12.6. Return of Contribution Nonrecourse
                   ----------------------------------    
                   to Other Members......................... 23
                   ----------------


 
                                 ARTICLE XIII.
                            MISCELLANEOUS PROVISIONS
                            ------------------------



                                                     
              13.1.  Notices............................... 23
                     -------
              13.2.  Books of Account and Records.......... 23
                     ----------------------------
              13.3.  Application of Colorado Law........... 24
                     ---------------------------
              13.4.  Waiver of Action for Partition........ 24
                     ------------------------------
              13.5.  Amendments............................ 24
                     ----------
              13.6.  Execution of Additional Instruments... 24
                     -----------------------------------
              13.7.  Construction.......................... 24
                     ------------
              13.8.  Headings.............................. 24
                     --------
              13.9.  Waivers............................... 24
                     -------
             13.10.  Rights and Remedies Cumulative........ 24
                     ------------------------------
             13.11.  Severability.......................... 25
                     ------------
             13.12.  Heirs, Successors and Assigns......... 25
                     -----------------------------
             13.13.  Creditors............................. 25
                     ---------
             13.14.  Counterparts.......................... 25
                     ------------



 
                              OPERATING AGREEMENT

                                      OF

                       BEAR PAW OPERATING COMPANY, INC. 

                                  ARTICLE I.
                                  DEFINITIONS
                                  -----------

     The following terms used in this Operating Agreement shall have the
following meanings (unless otherwise expressly provided herein):

     1.1.  "Additional Member"  shall mean any Person or Entity who or which is
            -----------------                                                  
admitted to the Company as an Additional Member pursuant to Article XI of this
Operating Agreement.

     1.2.  "Capital Account"  as of any given date shall mean the Capital
            ---------------                                              
Contribution to the Company by a Member as adjusted upon to the date in question
pursuant to Article VIII.

     1.3.  "Capital Contribution"  shall mean any contribution to the capital of
            --------------------                                                
the Company in cash or property by a Member whenever made.

     1.4.  "Code"  shall mean the Internal Revenue Code of 1986 or corresponding
            ----                                                                
provisions of subsequent superseding federal revenue laws.

     1.5.  "Company"  shall refer to BEAR PAW OPERATING COMPANY, LLC
            -------                                                 

     1.6.  "Deficit Capital Account"  shall mean, with respect to any Member,
            -----------------------
the deficit balance, if any, in such Member's Capital Account as of the end of
the taxable year, after giving effect to the following adjustments:

            (a) credit to such Capital Account any amount which Member is
     obligated to restore under Section 1.704-1(b)(2)(ii)(c) of the Treasury
     Regulations, as well as any addition thereto after taking into account
     any changes during such year in partnership minimum gain, pursuant to the
     applicable Treasury Regulations, and the minimum gain attributable to any
     partner nonrecourse debt; and

            (b) debit to such Capital Account the items described in
     Sections 1.704-1(b)(2)(ii)(d)(4), (5) and (6) of the Treasury 
     Regulations.

 
     1.7.  "Distributable Cash"  means all cash, revenues and funds received
            ------------------
by the Company from Company operations, less the sum of the following to the
extent paid or set aside by the Company:

           (a) all principal and interest payments on indebtedness of the
     Company and all other sums paid to lenders;

           (b) all cash expenditures incurred incident to the normal operation
     of the Company's business;

           (c) such cash reserves as the Manager deems reasonably necessary to
     the proper operation of the Company's business.

     1.8.  "Effective Date" of this Operating Agreement shall mean January 1,
            --------------
1996.
                                                                 

     1.9.  "Entity"  shall mean any general partnership, limited partnership,
            ------
limited liability company, corporation, joint venture, trust, business trust,
operative or association.

     1.10. "Fiscal Year"  means the Company's fiscal year, which shall be from
            -----------
May 1 through April 30.

     1.11. "Initial Capital Contribution"  shall mean the initial contribution
            ----------------------------
to the Capital of the Company made by each of the Members during the Initial
Term of this Operating Agreement as further described in Section 8.1.

     1.12. "Initial Term " shall mean the period of time ending two years after
            ------------
the effective date of this Operating Agreement.

     1.13. "Interest"  shall mean the proportion of each Member's allocated
            --------
share of the Company's profits and losses from operations, as set forth in
Section 9.1.

     1.14. "Manager"  shall mean one or more managers.  Specifically, "Manager"
            -------                                                    ------- 
shall mean BP Energy Operating, LLC, or any other persons that succeed it in
that capacity. References to the Manager in the singular or as him, her, it,
itself or other like references shall also, where the context so requires, be
deemed to include the plural or the masculine or feminine reference, as the case
may be.

     1.15.  "Member"  shall mean each of the parties who executes a counterpart
             ------
of this Operating Agreement as a Member and each of the parties who may
hereafter become Additional or Substituted Members. To the extent a Manager has
purchased Interests in the Company, he will have all the rights of a Member with
respect to such Interests, and the term "Member," as used herein, shall include
a Manager to the extent he has purchased such Interests in the Company.

                                      -2-

 
     1.16. "Net Profits" shall mean, for each Fiscal Year, the income and gains
            -----------
of the Company determined in accordance with accounting principles consistently
applied from year to year under the accrual method of accounting and as
reported, separately or in the aggregate, as appropriate, on the Company's
information tax return filed for federal income tax purposes, plus any income
described in Section 705(a)(1)(B) of the Code.

     1.17. "Net Losses"  shall mean, for each Fiscal Year, the losses and
            ----------                                                 
deductions of the Company determined in accordance with accounting principles
consistently applied from year to year under the accrual method of accounting
and as reported separately or in the aggregate, as appropriate, on the Company's
information tax return filed for federal income tax purposes, plus any
expenditures described in Section 705(a)(2)(B) of the Code.

     1.18. "Operating Agreement"  shall mean this Operating Agreement as
            -------------------
originally executed and as amended from time to time.

     1.19. "Persons"  shall mean any individual or Entity, and the heirs,
            -------                                                      
executors, administrators, legal representatives, successors, and assigns of
such "Person" where the context so admits.
      ------                              

     1.20. "Reserves"  means, with respect to any fiscal period, funds set
            --------
aside or amounts allocated during such period to reserves which shall be
maintained in amounts deemed sufficient by the Manager for working capital and
to pay taxes, insurance, debt service or other costs or expenses incident to the
ownership or operation of the Company's business.

     1.21. "Selling Member"  shall mean any Member which sells, assigns,
            --------------
hypothecates, pledges or otherwise transfers all or any portion of its rights of
membership in the Company, including both economic and voting rights.

     1.22. "Substitute Member"  shall mean any Person or Entity who or which is
            -----------------                                                  
admitted to the Company with all the rights of a Member who has died or has
assigned his interest in the Company with the approval of all the Members of the
Company by unanimous written consent pursuant to Article X of this Operating
Agreement.

     1.23. "Supplemental Capital Contribution" shall mean any contribution to
            ---------------------------------
the Capital of the Company made by each Member in addition to the Initial
Capital Contribution of each Member.

     1.24. "Colorado Act"  shall mean the Colorado Limited Liability Company
            ------------
Act at Colo. Rev. Stat. (S) 7-80-101.

                                      -3-

 
                                  ARTICLE II.
                              FORMATION OF COMPANY
                              --------------------

     2.1.  Formation.  Effective January 1, 1996, BP Energy Operating, LLC
           ---------
("Bear Paw"), Sheffield Exploration Company, Inc. ("Sheffield"), and
TransMontaigne Oil Company ("TransMontaigne") organized a Limited Liability
Company under and pursuant to the Colorado Act.

     2.2.  Name.  The name of the Company is BEAR PAW OPERATING COMPANY, LLC.
           ----                                                              

     2.3.  Principal Place of Business.  The principal place of business of the
           ---------------------------                                         
Company within the State of Colorado shall be 410  17th St., Suite 1150, Denver,
Colorado 80202.  The Company may locate its places of business and registered
office at any other place or places as the Manager may from time to time deem
advisable.

     2.4.  Registered Office and Registered Agent.  The Company's registered
           ---------------------------------------                           
office shall be at the office of its registered agent at 1600 Broadway, Suite
2400, Denver, Colorado 80202, and the name of its registered agent at such
address shall be Michael J. Wozniak.

     2.5.  Term.  The term of the Company shall be thirty (30) years from the
           -----                                                              
Effective Date, unless the Company is earlier dissolved in accordance with
either the provisions of this Operating Agreement or the Colorado Act.

                                 ARTICLE III.
                        PERMITTED BUSINESSES OF COMPANY
                        -------------------------------

     3.1.  The business of the Company shall be:

           (a) To seek business and investment opportunities in the natural gas
     gathering and processing business, including, but not limited to
     acquisitions, contract operator services, and related activities.

           (b) To accomplish any other lawful business whatsoever, whether or
     not related to the natural gas gathering and processing business, which
     shall at any time appear conducive to or expedient for the protection or
     benefit of the Company and its assets.

           (c) To exercise all other powers necessary to or reasonably connected
     with the Company's business which may be legally exercised by limited
     liability companies under the Colorado Act.

           (d) To engage in all activities necessary, customary, convenient, or
     incident to any of the foregoing.

                                      -4-

 
                                  ARTICLE IV.
                         NAMES AND ADDRESSES OF MEMBERS
                         ------------------------------

     4.1.  The names and addresses of the Members and the Members'
representatives are as follows:

             BP Energy Operating, LLC
             Robert J. Clark
             410 17th St., Suite 1150
             Denver, CO 80202

             Sheffield Exploration Company, Inc. 
             J. Samuel Butler                    
             1801 Broadway, Suite 600            
             Denver, CO 80202                     

             TransMontaigne Oil Company                                        
             Harold R. Logan, Jr., Frederick W. Boutin or
             Cortlandt S. Dietler 
             370 17th St., Suite 900                                           
             Denver, CO 80202                                                   

     For the purposes of voting and any required consents, as provided for in
this Operating Agreement, the above-named individuals shall represent and act on
behalf of the Members.  One individual from each Member shall act as a
management committee of the Members and shall meet periodically to satisfy the
requirements of Section 5.4, and as otherwise provided in this Operating
Agreement.  Each Member shall be entitled to replace its representative at any
time and shall promptly notify the other Members in writing of such replacement.

                                   ARTICLE V.
                          RIGHTS AND DUTIES OF MANAGER
                          ----------------------------

     5.1.  Management.  The ordinary and usual business and affairs of the
           ----------
Company shall be managed by Bear Paw. Bear Paw, as Manager, shall direct, manage
and control the day-to-day business of the Company to the best of its ability.
Except as provided in Section 5.4, the Manager shall have full and complete
authority, power and discretion to make any and all decisions and to do any and
all things which the Manager shall deem to be reasonably required in light of
the Company's business and objectives.

     5.2.  Number, Tenure and Qualifications.  The Company shall initially have
           ---------------------------------
one Manager.  The number of Managers of the Company shall be fixed from time to
time by the affirmative vote of Members holding at least ninety percent (90%) of
all Interests in the Company's capital, but in no instance shall there be less
than one Manager.  Each Manager shall hold office until the next annual meeting
of Members or until his or her successor shall have been elected and qualified.
Managers shall be elected by the 

                                      -5-

 
affirmative vote of Members holding at least ninety percent (90%) of all
Interests in the Company's capital. Managers need not be residents of the State
of Colorado or Members of the Company.

     5.3.  Certain Powers of the Manager.  Without limiting the generality of
           ------------------------------                                     
Section 5.1, the Manager shall have power and authority, on behalf of the
Company:

           (a) To acquire all or any portion of property from any Person or
     Entity as the Manager may determine. The fact that a Member is directly or
     indirectly affiliated or connected with any such Person or Entity shall not
     prohibit the Manager from dealing with that Person or Entity;

           (b) To purchase liability and other insurance to protect the
     Company's property and business;

           (c) To hold and own any Company real and/or personal properties in
     the name of the Company;

           (d) To invest any Company funds temporarily (by way of example but
     not by way of limitation) in time deposits, short-term governmental
     obligations, commercial paper or other investments;

           (e) To execute on behalf of the Company all instruments and
     documents, including, without limitation, checks; drafts; notes and other
     negotiable instruments; mortgages or deeds of trust; security agreements;
     financing statements; documents providing for the acquisition, mortgage or
     disposition of the Company's property; assignments; bills of sale; leases;
     partnership agreements; and any other instruments or documents necessary,
     in the opinion of the Manager, to the business of the Company;

           (f) To employ accountants, legal counsel, managing agents or other
     experts to perform services for the Company and to compensate them from
     Company funds;

           (g) To enter into any and all other agreements on behalf of the
     Company, with any other Person or Entity for any purpose, in such forms as
     the Manager may approve; and

           (h) To do and perform all other acts as may be necessary or
     appropriate to the conduct of the Company's business.

Unless authorized to do so by this Operating Agreement or by a Manager or
Managers of the Company, no Member, agent, or employee of the Company shall have
any power or authority to bind the Company in any way, to pledge its credit or
to render it liable pecuniarily for any purpose.  However, a Manager may act by
a duly authorized attorney-in-fact.

                                      -6-

 
     5.4.  Restrictions on Authority of the Manager.
           ---------------------------------------- 

           (a) The Manager shall not have the authority to, and covenants and
     agrees that it shall not, do any of the following acts without the
     unanimous consent of the Members:

               (i) Cause the Company to incur any costs or liabilities in any
           single transaction or series of related transactions in excess of
           $100,000.00;

              (ii) Cause the Company to make any capital expenditure in any
           single transaction or series of related transactions in excess of
           $100,000.00; and

             (iii) Cause the sale, exchange, or other disposition of all, or
           substantially all, of the Company's assets.

           (b) Upon approval of the expenditures contemplated in Section 5.4(a),
     actual contribution of such capital shall be made within ten (10) days of
     written notice to Sheffield and TransMontaigne, as provided in Sections
     8.1(b)(ii) and 8.1(c)(ii)

           (c) The consent of the Members, as required in Section 5.4(a) shall
     be obtained at a meeting of the Members, as provided in Sections 7.1, 7.2,
     7.10, and 7.12.

     5.5.  Manager's and Members' Duties to Company.
           ---------------------------------------- 

           (a) Until the expiration of the Initial Term of this Operating
     Agreement or until all Capital Contributions required under Sections
     8.1(b)(i) and (ii) and 8.1(c)(i) and (ii) are made, whichever first occurs,
     the Manager shall have an exclusive duty to the Company and shall not
     engage in any business activity which could reasonably be construed as a
     business opportunity of the Company.

           (b) Neither the Company nor any Member shall have any right, by
     virtue of this Operating Agreement, to share or participate in any other
     investments or activities of the Manager or any investments or activities
     of any other Member or to the income or proceeds derived therefrom.

     5.6.  Bank Accounts.  The Manager may from time to time open bank accounts
           -------------     
           in the name of the Company, and the Manager shall be the sole
     signatory thereon, unless the Manager determines otherwise.

                                      -7-

 
     5.7.  Liability for Certain Acts.  The Manager shall perform its duties as
           --------------------------                                          
Manager in good faith, in a manner it reasonably believes to be in the best
interests of the Company, and with such care as an ordinarily prudent person in
a like position would use under similar circumstances.  A Manager who so
performs the duties as Manager shall not have any liability by reason of being
or having been a Manager of the Company.  The Manager does not, in any way,
guarantee the return of the Members' Capital Contributions or a profit for the
Members from the operations of the Company.  The Manager shall not be liable to
the Company or to any Member for any loss or damage sustained by the Company or
any Member, unless the loss or damage shall have been the result of fraud,
deceit, gross negligence, willful misconduct, material breach of this Operating
Agreement or a wrongful taking by the Manager.

     5.8.  Indemnity of the Manager.  The Manager shall be indemnified by the
           ------------------------                                          
Company when acting within the scope of its duties hereunder to the fullest
extent permitted by Colorado law, except in the case of the Manager's gross
negligence or willful misconduct.

     5.9.  Resignation.
           ----------- 

           (a) Prior to the expiration of the Initial Term of this Operating
     Agreement, Bear Paw shall be prohibited from resigning as Manager, unless
     unanimous approval of all Members is obtained.

           (b) Subsequent to the expiration of the Initial Term of this
     Operating Agreement, any Manager of the Company may resign at any time by
     giving written notice to the Members of the Company. The resignation of any
     Manager shall take effect upon receipt of notice thereof or at such later
     time as shall be specified in such notice; and, unless otherwise specified
     therein, the acceptance of such resignation shall not be necessary to make
     it effective.

     5.10.  Removal.  In the event of gross negligence or willful misconduct by
            ------- 
the Manager in the discharge of its duties under this Operating Agreement, the
Manager may be removed or replaced, at any time, by the affirmative vote of
Members holding ninety percent (90%) of all Interests then entitled to vote at
an election of Managers.

     5.11.  Vacancies.  Any vacancy occurring for any reason in the number of
            ---------                                                        
Managers of the Company may be filled by the affirmative vote of Members holding
at least ninety percent (90%) of all Interests. Any Manager's position to be
filled by reason of an increase in the number of Managers shall be filled by an
election at an annual meeting or at a special meeting of Members called for that
purpose or by the Members' written consent. A Manager elected to fill a vacancy
shall be elected for the unexpired term of his

                                      -8-

 
predecessor in office and shall hold office until the expiration of such term
and until his successor shall be elected and shall qualify or until his earlier
death, resignation or removal. A Manager chosen to fill a position resulting
from an increase in the number of Managers shall hold office until the next
annual meeting of Members and until his successor shall be elected and shall
qualify, or until his earlier death, resignation or removal.

     5.12.  Salaries, Management Fees and Other Compensation.  The management
            ------------------------------------------------
fees and other compensation of the Manager shall be fixed from time to time by a
unanimous vote of Members and no Manager shall be prevented from receiving such
management fee by reason of the fact that he or she is also a Member of the
Company. During the Initial Term, the management committee of the Members shall
approve the salaries of Company management employees by unanimous vote of
Members. No management fees or other compensation paid by the Company to the
Manager or any employees of the Manager shall act to reduce the Capital
Contribution or Capital Account of the Manager.

                                  ARTICLE VI.
                       RIGHTS AND OBLIGATIONS OF MEMBERS
                       ---------------------------------

     6.1.  Limitation of Liability.  Each Member's liability shall be limited as
           -----------------------
set forth in the Colorado Act and other applicable law.

     6.2.  Company Debt Liability. A Member will not personally be liable for
           ----------------------
any debts or losses of the Company beyond its respective Capital Contribution,
except as otherwise required by law.

     6.3.  List of Members.  Upon written request of any Member, the Manager
           ---------------
shall provide a list showing the names, addresses and Interests of all Members
in the Company.

     6.4.  Company Books.  In accordance with Section 13.2 herein, the Manager
           -------------
shall maintain and preserve, during the term of the Company, and for three (3)
years thereafter, all accounts, books, and other relevant Company documents.
Upon reasonable request, each Member shall have the right, during ordinary
business hours, to inspect and copy such Company documents at the Member's
expense.

     6.5.  Loans by Company to Bear Paw.  Bear Paw shall have the right to
           ----------------------------
borrow money from the Company, as needed, in an amount sufficient to pay any
federal, state and local tax liabilities of Bear Paw, resulting directly from
its membership in the Company. Bear Paw may exercise this right on a continuing
basis. Bear Paw shall provide evidence of such tax liability to the other
Members prior to receiving such loan(s). Any loan(s) so made by the Company
shall be evidenced by a promissory note executed by Bear Paw. Bear Paw shall
have the right to prepay the amount of the

                                      -9-

 
loan and accrued interest at any time, but shall not be obligated to make any
payments on outstanding amounts until the sale of the Company or until the sale
of all or substantially all of the assets of the Company. All such loans shall
bear interest at the prime rate, as published in the Wall Street Journal, in
effect on the date of each such loan(s).

                                 ARTICLE VII.
                              MEETINGS OF MEMBERS
                              -------------------

     7.1.  Annual Meeting.  The annual meeting of the Members shall be held on
           --------------  
the first Tuesday of July at 10:00 a.m. or at such other time as shall be
determined by resolution of the Members, commencing with the year 1996, for the
purpose of the transaction of such business as may come before the meeting.

     7.2.  Special Meetings.  Special meetings of the Members, for any purpose
           ----------------
or purposes, unless otherwise prescribed by statute, may be called by any
Manager or by any Member or Members holding at least 10% of the Interests.

     7.3.  Place of Meetings.  The Members may designate any place, either with
           -----------------
in or outside the State of Colorado, as the place of meeting for any meeting of
the Members. If no designation is made, or if a special meeting be otherwise
called, the place of meeting shall be held at 410 17th St., Suite 1150, Denver,
Colorado 80202.

     7.4.  Notice of Meetings.  Except as provided in Section 7.5, written
           ------------------
notice stating the place, day and hour of the meeting and the purpose or
purposes for which the meeting is called shall be delivered not less than one
day nor more than forty days before the date of the meeting, either personally
or by mail or by facsimile, by or at the direction of the Manager or person
calling the meeting, to each Member entitled to vote at such meeting. If mailed,
such notice shall be deemed to be delivered two calendar days after being
deposited in the United States mail, addressed to the Member at his or her
address as it appears on the books of the Company, with postage thereon prepaid.

     7.5.  Meeting of All Members.  If all of the Members shall meet at any time
           ----------------------
and place, either within or outside of the State of Colorado, and consent to the
holding of a meeting at such time and place, such meeting shall be valid without
call or notice, and at such meeting lawful action may be taken.

     7.6.  Record Date.  For the purpose of determining Members entitled to not
           -----------
ice of or to vote at any meeting of Members or any adjournment thereof, or
Members entitled to receive payment of any distribution, or in order to make a
determination of Members for any other purpose, the date on which notice of the
meeting is mailed or the date on which the resolution declaring such

                                     -10-

 
distribution is adopted, as the case may be, shall be the record date for such
determination of Members.  When a determination of Members entitled to vote at
any meeting of Members has been made as provided in this Section, such
determination shall apply to any adjournment thereof.

     7.7.  Quorum.  Members holding ninety percent (90%) of all Interests in the
           ------
Company's capital, represented in person or by proxy, shall constitute a quorum
at any meeting of Members. In the absence of a quorum at any such meeting, a
majority of the Interests so represented may adjourn the meeting from time to
time for a period not to exceed 60 days without further notice. However, if the
adjournment is for more than 60 days, or if after the adjournment a new record
date is fixed for the adjourned meeting, a notice of the adjourned meeting shall
be given to each Member of record entitled to vote at the meeting.

     At such adjourned meeting at which a quorum shall be present or
represented, any business may be transacted which might have been transacted at
the meeting as originally noticed.  The Members present at a duly organized
meeting may continue to transact business until adjournment, notwithstanding the
withdrawal during such meeting of that number of Interests whose absence would
cause less than a quorum.

     7.8.  Manner of Acting.  If a quorum is present, the affirmative unanimous
           ----------------
vote of Members entitled to vote on the subject matter shall be the act of the
Members, unless the vote of a lesser proportion or number is otherwise required
by the Colorado Act, or by the Articles of Organization or by this Operating
Agreement.

     7.9.  Proxies.  At all meetings of Members a Member may vote in person or
           -------
by proxy executed in writing by the Member or by a duly authorized attorney-in-
fact. Such proxy shall be filed with the Manager of the Company before or at the
time of the meeting. No proxy shall be valid after eleven months from the date
of its execution, unless otherwise provided in the proxy.

     7.10. Action by Members Without a Meeting.  Action required or permitted
           -----------------------------------
to be taken at a meeting of Members may be taken without a meeting if the action
is evidenced by one or more written consents describing the action taken, signed
by the Members whose vote would be required to approve the proposal at a meeting
at which all Members were present. Such consent shall be delivered to the
Manager of the Company for inclusion in the minutes or for filing with the
Company records. Action taken under this Section is effective when all Members
entitled to vote have signed the consent, unless the consent specifies a
different effective date.

                                     -11-

 
     The record date for determining Members entitled to take action without a
meeting shall be the date the first Member signs a written consent.

     7.11.  Waiver of Notice.  When any notice is required to be given to any
            ----------------
Member, a waiver thereof in writing signed by the Person entitled to such
notice, whether before, at, or after the time stated therein, shall be
equivalent to the giving of such notice.

     7.12.  Meetings by Telephone.  Any meeting required or allowed under this
            ---------------------                                             
Article VII may be conducted by telephone conference whenever the Members
determine it is necessary or convenient.

                                  ARTICLE VIII.
               CONTRIBUTIONS TO THE COMPANY AND CAPITAL ACCOUNTS
               -------------------------------------------------

     8.1.  Members' Capital Contributions.
           ------------------------------ 

           (a) Bear Paw shall contribute the assets described on Exhibit A
     hereto as its share of the Initial Capital Contribution. This contribution
     shall be accomplished by means of an assignment of contract rights in a
     form mutually satisfactory to all Members. Bear Paw shall have the right
     but not the obligation to make Supplemental Capital Contributions in
     addition to its Initial Capital Contribution.

           (b) Sheffield Exploration Company, Inc. ("Sheffield") shall
     contribute the following amounts, as its share of the Initial Capital
     Contributions:

               (i) Upon execution of this Operating Agreement, one hundred fifty
           thousand dollars ($150,000.00), to be used as working capital; and

              (ii) During the Initial Term of this Operating Agreement, an
           additional one million dollars ($1,000,000.00). Except for single
           expenditures or a group o related expenditures in excess of
           $100,000.00, as provided in Section 5.4(a), such contribution shall
           be made from time to time, as determined by the Manager to be
           reasonably necessary to meet the expenses of the Company. Upon the
           making of any such determination, the Manager shall give written
           notice to Sheffield of the amount of the required additional
           contribution, and Sheffield shall deliver to the Company its share of
           such additional capital no later than ten (10) days following the
           date such notice is delivered. As to single expenditures or a group
           of related expenditures in excess of $100,000.00, as provided in
           Section 5.4(a), Sheffield shall be obligated to contribute from time
           to time such capital as is required to fund each individually
           approved
                                     -12-

 
         project within 10 days of receipt of written notice from the Manager
         that unanimous consent for any project has been obtained.

              (iii) The amounts set forth in Section 8.1(b)(i) and (ii) is
         Sheffield's Initial Capital Contribution.

              (iv)  Subsequent to the end of the Initial Term of this Operating
         Agreement or after Sheffield's Initial Capital Contribution has been
         made, Supplemental Capital Contributions may occur as are approved by
         the Members holding one hundred percent (100%) of all Interests. All
         such Supplemental Capital Contributions shall be made within 10 days of
         receipt of written notice from the Manager that approval of such
         contribution has been obtained.

         (c) TransMontaigne Oil Company ("TransMontaigne") shall contribute the
following amounts, as its share of the Initial Capital Contributions:

              (i)  Upon execution of this Operating Agreement, one hundred
         fifty thousand dollars ($150,000.00), to be used as working capital;
          and

              (ii)  During the Initial Term of this Operating Agreement, an
         additional one million dollars ($1,000,000.00). Except for single
         expenditures or a group of related expenditures in excess of
         $100,000.00, as provided in Section 5.4(a), such contribution shall be
         made from time to time, as determined by the Manager to be reasonably
         necessary to meet the expenses of the Company. Upon the making of any
         such determination, the Manager shall give written notice to
         TransMontaigne of the amount of the required additional contribution,
         and TransMontaigne shall deliver to the Company its share of such
         additional capital no later than ten (10) days following the date such
         notice is delivered. As to single expenditures or a group of related
         expenditures in excess of $100,000.00, as provided in Section 5.4(a),
         TransMontaigne shall be obligated to contribute from time to time such
         capital as is required to fund each individually approved project
         within 10 days of receipt of written notice from the Manager that
         unanimous consent for any project has been obtained.

              (iii) The amounts set forth in Section 8.1(b)(i) and (ii) is
         TransMontaigne's Initial Capital Contribution.

              (iv) Subsequent to the end of the Initial Term of this Operating
         Agreement or after TransMontaigne's

                                     -13-

 
          Initial Capital Contribution has been made, Supplemental Capital
          Contributions may occur as are approved by the Members holding one
          hundred percent (100%) of all Interests. All such Supplemental Capital
          Contributions shall be made within 10 days of receipt of written
          notice from the Manager that approval of such contribution has been
          obtained.

     8.2. Capital Accounts.
          ---------------- 

         (a) A separate Capital Account will be maintained for each Member, each
     Member's Capital Account will be increased by (1) the amount of money
     contributed by such Member to the company; (2) the fair market value of
     property contributed by such Member to the Company (net of liabilities
     secured by such contributed property that the Company is considered to
     assume or take subject to under Section 752 of the Code); (3) allocations
     to such Member of Company income and gain; and (4) allocations to such
     Member of income described in Section 705(a)(l) (B) of the Code. Each
     Member's Capital Account will be decreased by (1) the amount of money
     distributed to such Member by the company; (2) the fair market value of
     property distributed to such Member by the Company (net of liabilities
     secured by such distributed property that such Member is considered to
     assume or take subject to under Section 752 of the Code); (3) allocations
     to such Member of expenditures described in Section 705(a)(2)(B) of the
     Code; and (4) allocations to the account of such Member of Company loss and
     deduction as set forth in such Treasury Regulations, taking into account
     adjustments to reflect book value.

         (b) In the event of a permitted sale or exchange of an Interest in the
     company, the Capital Account of the transferor shall become the Capital
     Account of the transferee to the extent it relates to the transferred
     interest.

         (c) The manner in which Capital Accounts are to be maintained pursuant
     to this Section 8.2 is intended to comply with the requirements of Code
     Section 704(b) and the Treasury Regulations promulgated thereunder. If in
     the opinion of the company's accountants the manner in which Capital
     Accounts are to be maintained pursuant to the preceding provisions of this
     Section 8.02 should be modified in order to comply with Code Section 704(b)
     and the Treasury Regulations thereunder, then notwithstanding anything to
     the contrary contained in the preceding provisions of this Section 8.2, the
     method in which Capital Accounts are maintained shall be so modified;
     provided, however, that any change in the manner of maintaining capital
     Accounts shall not materially alter the economic agreement between or among
     the Members.

                                     -14-

 
          (d) Upon liquidation of the Company (or any Member's interest),
     liquidating distributions will be made in accordance with Section 12.3.

          (e) Except as otherwise required in the Colorado Act, no Member shall
     have any liability to restore all or any portion of a deficit balance in
     such Members Capital Account.

     8.3. Withdrawal or Reduction of Member's Contributions to Capital.
          ------------------------------------------------------------ 

          (a) A Member shall not receive out of the Company's property any part
     of his or her contributions to capital until all liabilities of the
     Company, except liabilities to Members on account of their contributions to
     capital, have been paid or there remains property of the Company sufficient
     to pay them.

          (b) Except for the reassignment to Bear Paw of the CIG contract, as
     provided in Section 12.3, a Member, irrespective of the nature of its
     contribution, has only the right to demand and receive cash in return for
     his or her contribution to capital.

                                   ARTICLE IX.
          ALLOCATIONS, DISTRIBUTIONS, INCOME TAX ELECTIONS AND REPORTS
          ------------------------------------------------------------

     9.1. Allocations of Profits and Losses from Operations.  Except for the 
          -------------------------------------------------- 
special distributions to be made upon the liquidation of the Company, as
provided in Section 12.3(b), the Net Profits and Net Losses of the Company for
each fiscal year will be allocated as follows:

     Member      Allocation

     Bear Paw          10%
     Sheffield         45%
     TransMontaigne    45%

     9.2.  Special Allocation to Capital Accounts.  Notwithstanding Section 9.1
           ---------------------------------------                              
hereof:

           (a) No allocations of loss, deduction and/or expenditures described
     in Section 705(a)(2)(B) of the Code shall be charged to the Capital
     Accounts of any Member if such allocation would cause such Member to have a
     Deficit Capital Account. The amount of the loss, deduction and/or Code
     Section 705(a)(2)(B) expenditure which would have caused a Member to have a
     Deficit Capital Account shall instead be charged to the Capital Account of
     any Members which would not have a Deficit Capital Account as a result of
     the allocation, in proportion to their respective Capital Contributions,
     or,

                                     -15-

 
     if no such Members exist, then to the Members in accordance with their
     Interests in the Company.

           (b) In the event any Member unexpectedly receives any adjustments,
     allocations, or distributions, described in Sections 1.704-1(b)(2)(ii)(d)
     (4), (5), or (6) of the Treasury Regulations, which create or increase a
     Deficit capital Account or such Member then items of Company income and
     gain (consisting of a pro rata portion of each item of Company income,
     including gross income, and gain for such year and, if necessary, for
     subsequent years shall be specially credited to the Capital Account of such
     Member in an amount and manner sufficient to eliminate, to the extent
     required by the Treasury Regulations, the Deficit Capital Account so
     created as quickly as possible.  It is the intent that this Section 9.02(b)
     be interpreted to comply with the alternate test for economic effect set
     forth in Section 1.704-1(b)(2)(ii)(d) of the Treasury Regulations.

           (c) In the event any Member would have a Deficit Capital Account at
     the end of any Company taxable year which is in excess of the sum of any
     amount that such Member is obligated to restore to the Company under the
     applicable Treasury Regulations and such Member's share of minimum gain
     (which is also treated as an obligation to restore) as provided in the
     applicable Treasury Regulations, the Capital Account of such Member shall
     be specially credited with items of income (including gross income) and
     gain in the amount of such excess as quickly as possible.

           (d) Notwithstanding any other portion of this Section 9.2, if there
     is a net decrease in the Company's minimum gain as defined in the
     applicable Treasury Regulations during a taxable year of the Company, then,
     the Capital Accounts of each Member shall be allocated items of income
     (including gross income) and gain for such year (and if necessary for
     subsequent years) in proportion to, and to the extent of, an amount equal
     to the greater of (i) the portion of such Member's share of the net
     decrease in Company minimum gain during such year that is allocable to the
     disposition of Company property subject to one or more nonrecourse
     liabilities of the company, or (ii) such Member's Deficit Capital Account
     at the end of such year. This Section 9.02(d) is intended to comply with
     the applicable Treasury Regulation concerning the minimum gain charge back
     requirement and shall be interpreted consistently therewith.

           (e) Items of Company loss, deduction and expenditures which are
     attributable to any nonrecourse debt of the Company and are characterized
     as partner nonrecourse deductions shall be charged to the Members' Capital
     Accounts, all in accordance with the applicable Code Section and Treasury
     Regulations.

                                     -16-

 
           (f) Beginning in the first taxable year in which there are
     allocations of "nonrecourse deductions" (as described in the applicable
     Treasury Regulations) attributable to nonrecourse liabilities of the
     Company, and thereafter throughout the full term of the Company,
     nonrecourse deductions shall be allocated to the Members in accordance with
     and as a part of, the allocations of Company profit or loss for such
     period.
 
           (g) Any credit or charge to the Capital Accounts of the Members
     pursuant to Sections 9.2(a), (b), (c), (d), (e) and/or (f) hereof shall be
     taken into account in computing subsequent allocations of profits and
     losses pursuant to Section 9.1 so that the net amount of any items charged
     or credited to Capital Accounts pursuant to Sections 9.1 and 9.2 shall to
     the extent possible, be equal to the net amount that would have been
     allocated to the Capital Account of each Member pursuant to the provisions
     of this Article IX if the special allocations required by Sections 9.2(a),
     (b), (c), (d), (e) and/or (f) hereof had not occurred.

     9.3.  Distributions.
           -------------- 

           (a) During the Initial Term, no distributions of cash or other
     property shall be made to any Member, except upon the dissolution of the
     Company, as provided in Section 12.1(a)(ii). In the event of such
     dissolution, all distributions shall be made to the Members as provided in
     Section 12.3.

           (b) After the expiration of the Initial Term, except as provided in
     Section 12.3, all distributions of cash or other property shall be made to
     the Members pro rata in proportion to the respective Interests of the
     Members on the record date of such distribution. Except as provided in
     Section 9.2, all distributions of Distributable Cash and property shall be
     made at such times as determined by the Manager. All amounts withheld
     pursuant to the Code or any provisions of state or local tax law with
     respect to any payment or distribution to the Members from the Company
     shall be treated as amounts distributed to the relevant Member or Members
     pursuant to this Section 9.3.

     9.4.  Limitation Upon Distributions.  No distribution shall be declared and
           ------------------------------                               
paid unless, after the distribution is made, the assets of the Company are in
excess of all liabilities of the company, except liabilities to Members on
account of their contributions.

     9.5.  Interest On and Return of Capital Contributions.  No Member shall be
           ------------------------------------------------                     
entitled to interest on his or her Capital Contribution or to return of his or
her Capital 

                                     -17-

 
Contribution, except as otherwise specifically provided for herein.

     9.6.  Loans to Company.   Nothing in this Operating Agreement shall prevent
           -----------------                                                    
any Member from making secured or unsecured loans to the Company by agreement
with the Company.

     9.7.  Accounting Period.   The Company's accounting period shall be from 
           ------------------ 
May 1 through April 30 of each year.

     9.8.  Records, Audits and Reports.   At the expense of the Company, the
           ----------------------------                                     
Manager shall maintain records and accounts of all operations and expenditures
of the Company.  Each Member is entitled to review any records of the Company,
and to audit the Company's records at such Member's expense.  At a minimum the
Company shall keep at its principal place of business the following records:

           (a) A current list of the full name and last known business,
     residence, or mailing address of each Member and Manager, both past and
     present;

           (b) A copy of the Articles of Organization of the Company and all
     amendments thereto, together with executed copies of any powers or attorney
     pursuant to which any amendment has been executed;

           (c) Copies of the Company's federal, state, and local income tax
     returns and reports, if any for the four most recent years;

           (d) Copies of the Company's currently effective written Operating
     Agreement, copies of any writings permitted or required with respect to a
     Member's obligation to contribute cash, property or services and copies of
     any financial statements of the company for the three most recent years;

           (e) Minutes of every annual, special, and court-ordered meeting; and,

           (f) Any written consents obtained from Members for actions taken by
     Members without a meeting.

     9.9.  Returns and Other Elections.   The Manager shall cause the 
           ----------------------------
preparation and timely filing of all tax returns required to be filed by the
Company pursuant to the Code and all other tax returns deemed necessary and
required in each jurisdiction in which the Company does business. Copies of such
returns, or pertinent information therefrom, shall be furnished to the Members
within a reasonable time after the end of the Company's fiscal year. For
Colorado tax purposes, should it become necessary upon the admission of a non-
resident Member to the Company, the Manager

                                     -18-

 
shall file with the Colorado Department of Revenue, together with the Company's
annual Colorado return, an agreement for each non-resident Member to properly
file a Colorado income tax return and to make timely payment of all Colorado
taxes imposed with respect to such Member's share of the Company income as
required by C.R.S. (S) 39-22-601(4.5).

     All elections permitted to be made by the Company under federal or state
laws shall be made by the Manager in his or her sole discretion.

                                   ARTICLE X.
                        RESTRICTIONS ON TRANSFERABILITY
                        -------------------------------

     10.1.  General Restrictions.  Notwithstanding anything contained herein 
            --------------------- 
to the contrary, if all of the remaining Members do not approve of the proposed
sale or assignment of the Selling Member's Interest by unanimous written
consent, the proposed purchaser, transferee or assignee of the Selling Member's
Interest shall have no right to participate in the management of the business
and affairs of the Company or to become a Member. The purchaser, transferee or
assignee of such Selling Member's Interest shall only be entitled to receive
the share of profits or other compensation by way of income and the return of
contributions by way of income and the return of contributions, to which the
transferor Member would otherwise be entitled (the "Economic Interest" of a
Member). No transfer (including any transfer of the right to receive profits,
losses, income of the return of contributions or any transfer which has not
been approved by unanimous written consent of the Members) shall be effective
prior to the time that notice of such transfer (including the name and address
of the proposed purchaser, transferee or assignee and the date of such
transfer) is provided to the Company and the non-transferring Member(s).
Notwithstanding the foregoing, Sheffield may transfer its entire Interest to
TransMontaigne, and may merge into TransMontaigne without the consent of any
other member.

     10.2.  Additional Transfer Restrictions. Upon and contemporaneously with 
            --------------------------------- 
any transfer of a Selling Member's Economic Interest in the Company which does
not at the same time transfer the Selling Member's other membership interests in
the Company (including without limitation, the voting rights of the Selling
Member), the Company shall purchase from the Selling Member, and the Selling
Member shall sell to the Company all remaining membership interests retained by
the Selling Member which were previously attributable to the transferred
Economic Interest for a purchase price of $100.00.

     10.3.  Restrictions Consistent with Law.  The restrictions on transfer
            ---------------------------------                               
contained in this Article X are intended to comply (and 

                                     -19-

 
shall be interpreted consistently) with the restrictions on transfer set forth
in Colo. Stat. (S) 7-80-702.

                                   ARTICLE XI.
                               ADDITIONAL MEMBERS
                               ------------------

     From the date of the formation of the Company, any Person or Entity
acceptable to the Members by their unanimous vote may become a Member in this
company by the sale of new Company Interests for such consideration as the
Members by their unanimous vote shall determine, or as a transferee of a
Member's Interest or any portion thereof, subject to the terms and conditions of
this Operating Agreement.  No new Members shall be entitled to any retroactive
allocation of losses, income or expense deductions incurred by the Company.  The
Manager may, at his or her option, at the time an Additional Member is admitted,
close the Company books (as though the Company's tax year had ended) or make pro
rata allocations of loss, income and expense deductions to an Additional Member
for that portion of the Company's tax year in which an Additional Member was
admitted in accordance with the provisions of Section 706(d) of the Code and the
Treasury Regulations promulgated thereunder.

                                   ARTICLE XII.
                          DISSOLUTION AND TERMINATION
                          ---------------------------

     12.1.  Dissolution.
            ------------ 

           (a)  The Company shall be dissolved upon the occurrence of any of the
     following events:

                (i) when the period fixed for the duration of the Company shall
           expire;

                (ii) during the Initial Term, by the unanimous written agreement
           of all Members;

                (iii) after the expiration of the Initial Term, upon sixty days
           written notice by any Member to the other Members; and

                (iv) upon the death, retirement, resignation, expulsion,
           bankruptcy, dissolution of a Member or occurrence of any other event
           which terminates the continued membership of a Member in the Company
           (a "Withdrawal Event"), unless the business of the Company is
           continued by the consent of all the remaining Members within 90 days
           and there are at least two remaining Members, each of the Members
           hereby agrees that within the 60 days after the occurrence of a
           Withdrawal Event (and provided that there are at least two remaining
           Members of the Company), they will consent, in writing

                                     -20-

 
            to continue the business of the Company. Each of the Members
            further agrees to consent, in writing, to continue the business of
            the Company upon a transfer of a Member's Economic Interest or any
            other transfer of a Member's interest which is not consented to by
            all of the Members within 60 days after the occurrence of such a
            transfer. Such consent shall be mailed to the principal place of
            business of the Company set forth in Section 2.3 hereof (or to such
            other address designated by the Manager) no later than 60 days
            after each Withdrawal Event. The remedy for breach of a Member's
            obligation to consent to continue the business of the Company under
            this Section 12.1(a)(iii) shall be monetary damages (and not
            specific enforcement).

            (b) As soon as possible following the occurrence of any of the
     events specified in this Section effecting the dissolution of the Company,
     the appropriate representative of the Company shall execute a statement of
     intent to dissolve in such form as shall be prescribed by the Colorado
     Secretary of State and file same with the Colorado Secretary of State's
     office.

     12.2.  Effect of Filing of Dissolving Statement.  Upon the filing by the
            -----------------------------------------                         
Colorado Secretary of State of a statement of intent to dissolve, the Company
shall cease to carry on its business, except insofar as may be necessary for the
winding up of its business, but its separate existence shall continue until a
certificate of dissolution has been issued by the Secretary of State or until a
decree dissolving the Company has been entered by a court of competent
jurisdiction.

     12.3.  Winding Up, Liquidation and Distribution of Assets.
            --------------------------------------------------- 

            (a) Unless all remaining Members consent to the continuation of the
     Company, upon any sale, dissolution, or change in control of one hundred
     percent (100%) of the Interests, an accounting shall be made by the
     Company's independent accountants of the accounts of the Company and of the
     Company's assets, liabilities and operations, from the date of the last
     previous accounting until the date of dissolution. The Manager(s) shall
     immediately proceed to wind up the affairs of the Company. Upon
     dissolution, Sheffield and TransMontaigne shall have the option to operate
     any properties owned by the Company except for the CIG Contract.

            (b) If the Company is sold or dissolved, or a change in control of
     one hundred percent (100%) of the Interests occurs, and the Company's
     affairs are to be wound up, the Manager(s) shall (1) establish such
     Reserves as may be reasonably necessary to provide for contingent
     liabilities of the Company (for purposes of determining the Capital
     Accounts of the

                                     -21-

 
     Members, the amounts of such Reserves shall be deemed to be an expense of
     the company), (2) discharge any liabilities of the Company to the Members
     other than on account of their interests in Company capital or profits, and
     (3) distribute the remaining assets in the following order:

               (i) The Company shall reassign the CIG contract, as described on
           Exhibit A, to Bear Paw. Reassignment of the CIG Contract to Bear Paw
           shall constitute a charge against Bear Paw's capital account equal to
           the remaining unamortized value of said contract. For purposes of
           this section, the value of this contract shall be amortized over a
           two-year period. Any remaining assets shall be distributed to the
           Members based upon their respective capital accounts as determined in
           accord with Section 9.2. Bear Paw shall be entitled to receive an
           additional 10% distribution of Company profits after a 15% compound
           annual pre-tax return has been achieved by all Members on their
           Capital Contributions. (See Exhibit B, attached hereto for a sample
           calculation.)

           (c) In the event that any amounts due under any loan(s) made pursuant
      to Section 6.5 remain unpaid on the date of distribution under this
      Section, Sheffield and TransMontaigne shall be entitled to recoup any such
      amounts due under the loans from Bear Paw's distributive share prior to
      making any distribution to Bear Paw.

           (d) Notwithstanding anything to the contrary in this Agreement, upon
      a liquidation within the meaning of the applicable Treasury Regulations,
      if any Member has a Deficit Capital Account (after giving effect to all
      contributions, distributions, allocations and other Capital Account
      adjustments for all taxable years, including the year during which such
      liquidation occurs), such Member shall have no obligation to make any
      contribution to the capital of the Company, and the negative balance of
      such Members Capital Account shall not be considered a debt owed by such
      Member to the Company or to any other person for any purpose whatsoever.

           (e) Upon completion of the winding up, liquidation and distribution
      of the assets, the Company shall be deemed terminated.

           (f) The Manager(s) shall comply with any applicable requirements of
      applicable law pertaining to the winding up of the affairs of the Company
      and the final distribution of its assets.

      12.4.  Articles of Dissolution.  When all debts, liabilities and 
             ------------------------ 
obligations have been paid and discharged or adequate provisions have been made
therefor and all of the remaining

                                     -22-

 
property and assets have been distributed to the Members, articles of
dissolution shall be executed in duplicate and verified by the person signing
the articles, which articles shall set forth the information required by the
Colorado Act.



     12.5.  Filing of Articles of Dissolution.
            ---------------------------------- 

            (a) Duplicate originals of such articles of dissolution shall be
     delivered to the Colorado Secretary of State.

            (b) Upon the issuance of the certificate of dissolution, the
     existence of the Company shall cease, except for the purpose of suits,
     other proceedings and appropriate action as provided in the Colorado Act.
     The Manager shall have authority to distribute any company property
     discovered after dissolutions, convey real estate and take such other
     action as may be necessary on behalf of and in the name of the Company.

     12.6.  Return of Contribution Nonrecourse to Other Members.  Except as
            ----------------------------------------------------            
provided by law, upon dissolution, each Member shall look solely to the assets
of the company for the return of his or her Capital Contribution.  If the
Company property remaining after payment or discharge of the debts and
liabilities of the Company is insufficient to return the cash or other property
contribution of one or more Members, such Member or Members shall have no
recourse against any other Member.

                                 ARTICLE XIII.
                            MISCELLANEOUS PROVISIONS
                            ------------------------

     13.1.  Notices.  Any notice, demand, or communication required or 
            -------- 
permitted to be given by any provision of this Operating Agreement shall be
deemed to have been sufficiently given or served for all purposes if delivered
personally to the party or to an executive officer of the party to whom the
same is directed, or, if sent by registered or certified mail, postage and
charges prepaid, addressed to the Member's and/or Company's address, as
appropriate, which is set forth in this Operating Agreement. Any notice sent
by facsimile shall be deemed to have been sufficiently given by showing a
record made contemporaneously by the fax machine showing the date the fax was
sent and the telephone number to which the fax was sent, Except as otherwise
provided herein, any such notice shall be deemed to be given three business
days after the date on which the same was deposited in a regularly maintained
receptacle for the deposit of United States mail, addressed and sent as
aforesaid.

     13.2.  Books of Account and Records.  Proper and complete records and 
            -----------------------------  
books of account shall be kept or shall be caused to be 

                                     -23-

 
kept by the Manager in which shall be entered fully and accurately all
transactions and other matters relating to the Company's business in such detail
and completeness as is customary and usual for businesses of the type engaged in
by the Company. Such books and records shall be maintained as provided in
Section 9.9. The books and records shall at all times be maintained at the
principal executive office of the Company and shall be open to the reasonable
inspection and examination of the Members or their duly authorized
representatives during reasonable business hours.

     13.3.  Application of Colorado Law.  This Operating Agreement, and the
            ----------------------------                                    
application or interpretation hereof, shall be governed exclusively by its terms
and by the laws of the state of Colorado, and specifically the Colorado Act.

     13.4.  Waiver of Action for Partition.  Each Member irrevocably waives 
            -------------------------------    
during the term of the Company any right that he or she may have to maintain any
action for partition with respect to the property of the Company.

     13.5.  Amendments.  This Agreement may not be amended except by the 
            -----------
unanimous written agreement of all of the Members.

     13.6.  Execution of Additional Instruments.  Each Member hereby agrees to
            ------------------------------------                               
execute such other and further statements of interest and holdings,
designations, powers of attorney and other instruments necessary to comply with
any laws, rules or regulations.

     13.7.  Construction.  Whenever the singular number is used in this 
            -------------
Operating Agreement and when required by the context, the same shall include the
plural, and the masculine gender shall include the feminine and neuter genders
and vice versa; and the word "person" or "party" shall include a corporation,
firm, partnership, proprietorship or other form of association.

     13.8.  Headings.  The headings in this Operating Agreement are inserted for
            ---------
convenience only and are in no way intended to describe, interpret, define, or
limit the scope, extent or intent of this Operating Agreement or any provision
hereof.

     13.9.  Waivers.  The failure of any party to seek redress for violation 
            --------
of or to insist upon the strict performance of any covenant or condition of this
Operating Agreement shall not prevent a subsequent act, which would have
originally constituted a violation, from having the effect of an original
violation.

     13.10.  Rights and Remedies Cumulative.  The rights and remedies provided 
             -------------------------------   
by this Operating Agreement are cumulative and the use of any one right or
remedy by any party shall not preclude or waive the right to use any or all
other remedies. Said rights and remedies are given in addition to any other
rights the parties

                                     -24-

 
may have by law, statute, ordinance or otherwise.  However, nothing
set forth herein shall be construed to grant or provide any rights or benefits
to any person or entity who is not a party to this Agreement.  The parties
expressly acknowledge that there are no third party beneficiaries to this
Agreement.

     13.11.  Severability.  If any provision of this operating Agreement or the
             -------------                                                      
application thereof to any person or circumstance shall be invalid, illegal or
unenforceable to any extent, the remainder of this Operating Agreement and the
application thereof shall not be affected and shall be enforceable to the
fullest extent permitted by law.

     13.12.  Heirs, Successors and Assigns.  Each and all of the covenants, 
             ------------------------------ 
terms, provisions and agreements herein contained shall be binding upon and
inure to the benefit of the parties hereto and, to the extent permitted by this
operating Agreement, their respective heirs, legal representatives, successors
and assigns.

     13.13.  Creditors.  None of the provisions of this Operating Agreement 
             ---------- 
shall be for the benefit of or enforceable by any creditors of the Company.

     13.14.  Counterparts.  This Operating Agreement may be executed in
             -------------                                              
counterparts, each of which shall be deemed an original but all of which shall
constitute one and the same instrument.

                                     -25-

 
                                  CERTIFICATE

     The undersigned hereby agree, acknowledge and certify that the foregoing
Operating Agreement, consisting of 26 pages, excluding the Table of Contents and
Exhibits, constitutes the Operating Agreement of Bear Paw Operating Company,
LLC, adopted by the Members of the Company as of January 1, 1996.

                                     MEMBERS:

                                     BP ENERGY OPERATING, LLC

                                        /s/ Robert J. Clark
                                     -----------------------------------
                                     By:  Robert J. Clark, Manager


                                     SHEFFIELD EXPLORATION COMPANY,    
                                     INC.


                                        /s/ J. Samuel Butler
                                     ------------------------------------
                                     By:  J. Samuel Butler, President


                                     TRANSMONTAIGNE OIL COMPANY


                                        /s/ Harold R. Logan, Jr.
                                     -------------------------------------
                                     By:  Harold R. Logan, Jr.

                                     -26-

 
                                   EXHIBIT A



         Member                        Initial Capital Contribution
- -------------------------       ---------------------------------------------

BP Energy Operating, LLC                 Facilities Operating Agreement dated
                                         September 15, 1995 by and between BP
                                         Energy Operating LLC and Colorado
                                         Interstate Gas Company

                                     -27-

 
                                   EXHIBIT B

                           (ALL FIGURES IN THOUSANDS)


 
 
Initial Contributions    Sheffield  TransMontaigne  Bear Paw  Total
- -----------------------  ---------  --------------  --------  ------
                                                  
 
Cash                        $1,150          $1,150            $2,300
CIG contract                                                  $  300
- --------------------------------------------------------------------
                            $1,150          $1,150   $300     $ 2600
 

                 Distributions Upon Liquidation/Sale of Company
                 ----------------------------------------------
 
Company sold for:                                             $5,000
 
Return of original contributions:
 
                            $1,150          $1,150   $300     $2,600
 
Preferential Returns (@15% compound annual
                     pre-tax distribution):
 
                            $172.5          $172.5   $ 45     $  390
                                                              ------
                                                              $2,010
 
Additional distribution (@10%):
                                                     $201     $  201
                                                              ------
                                                              $1,809
 
Distribution of balance on pro rata basis:
 
                            $814            $814     $181
 
Totals:                     $2,136.5        $2,136.5 $727     $5,000
- -------