Document:

<PAGE>

                                                                  Execution Copy

                                                                    EXHIBIT 10.8

                               TRANSITION SERVICES

                                    AGREEMENT

                                 BY AND BETWEEN

                          THE WILLIAMS COMPANIES, INC.,
                             A DELAWARE CORPORATION

                                       AND

                             WEG ACQUISITIONS, L.P.,
                         A DELAWARE LIMITED PARTNERSHIP

<PAGE>

                          TRANSITION SERVICES AGREEMENT

                  This TRANSITION SERVICES AGREEMENT (this "Agreement") is
entered into as of June 17, 2003, by and between THE WILLIAMS COMPANIES, INC., a
Delaware corporation ("Williams"), and WEG ACQUISITIONS, L.P., a Delaware
limited partnership ("Buyer").

                                    Recitals

                  WHEREAS, Buyer, Williams Energy Services, LLC ("WES"),
Williams Natural Gas Liquids, Inc. ("WNGL") and Williams GP LLC (the "Old GP,"
and together with WES and WNGL, the "Selling Parties") have entered into that
certain Purchase Agreement, dated April 18, 2003, as amended by Amendment No. 1
thereto dated as of May 5, 2003 (as amended, the "Purchase Agreement"), for the
purchase and sale of all of the membership interests of WEG GP LLC (the "General
Partner"), the general partner of the Williams Energy Partners L.P. (the "MLP"),
all of the common units and subordinated units representing limited partner
interests in the MLP owned by WES and WNGL, and all of the class B common units
representing limited partner interests in the MLP owned by the Old GP (as
contemplated in the Purchase Agreement, the "Transaction");

                  WHEREAS, the Partnership Entities (as defined herein) are
engaged in the business of the storage, transportation and distribution of
refined petroleum products and ammonia (the "Business"); and

                  WHEREAS, Williams and certain of its affiliates and
subsidiaries currently provide certain services to the Partnership Entities with
respect to the operation of its Business pursuant to the Services Agreement,
dated September 30, 2002 (the "Services Agreement"), among WES, Williams
Petroleum Services, L.L.C. ("WPS"), the General Partner and the MLP; and it is a
closing condition for the parties to the Purchase Agreement that Williams and
Buyer enter into this Agreement pursuant to which Williams shall provide, or
cause the Williams Service Providers (as defined herein) to provide, and make
available to the Buyer Entities (as defined herein) for their benefit, the
Transition Services (as defined herein) during the term of this Agreement.

                  NOW, THEREFORE, in consideration of the premises and the
mutual covenants and agreements contained herein and for other good and valuable
consideration, the receipt and sufficiency of which are hereby acknowledged, the
parties agree as follows:

         1. Definitions. Capitalized terms used but not otherwise defined herein
shall have the meanings ascribed to them in the Purchase Agreement.

         "Accounting Referee" has the meaning set forth in Section 5(b).

         "Additional Services" has the meaning set forth in Section 2(j).

         "Business" shall have the meaning set forth in the recitals.

<PAGE>

         "Buyer Entities" shall mean, collectively, Buyer and its subsidiaries,
including the Partnership Entities.

         "Buyer Indemnified Parties" shall have the meaning set forth in Section
9(a).

         "Claim" shall have the meaning set forth in Section 9(a).

         "Closing" shall have the meanings set forth in Section 1.1 of the
Purchase Agreement.

         "Closing Date" shall have the meaning set forth in Section 1.1 of the
Purchase Agreement.

         "Determination Amount" shall have the meaning set forth in Section
5(b).

         "Employee Lease Payment" shall have the meaning set forth in Section
2(f).

         "Force Majeure Event" shall mean an act of God; unusual fire, flood,
earthquake, storm, lightning; an act of Governmental Authority, or necessity for
compliance with any court order, law, statute, ordinance or regulation
promulgated by a Governmental Authority having jurisdiction with respect to the
applicable subject matter; a strike, lockout or other industrial disturbance; an
act of the public enemy, sabotage, war, act of terrorism, insurrection or
blockade; riot or other civil disturbance; epidemic; explosions; and any other
similar event that, in each such case, prevents, in whole or in part, the
performance of a party's obligations under this Agreement, is not reasonably
within the control of the affected party and which by the exercise of
commercially reasonable efforts the affected party is unable to overcome or
prevent.

         "G&A Employees" shall have the meaning set forth in Section 1A.

         "G&A Services" shall mean all general and administrative services of
the same or similar nature which the Williams Service Providers furnished to the
Partnership Entities pursuant to the Services Agreement during the one-month
period ending on the Closing Date, the categories with respect to which are set
forth on Schedule "A" attached hereto.

         "G&A Service Fee" shall have the meaning set forth in Section 5(a)(ii).

         "Governmental Approval" shall mean any material consent, authorization,
certificate, permit, right of way grant or approval of any Governmental
Authority that is necessary for the construction, ownership and operation of the
Business in accordance with applicable Laws.

         "Governmental Authority" shall mean any court or tribunal in any
jurisdiction or any federal, state, tribal, municipal or local government or
other governmental body, agency, authority, department, commission, board,
bureau, instrumentality, arbitrator or arbitral body or any quasi-governmental
or private body lawfully exercising any regulatory or taxing authority.

         "Interest Rate" shall have the meaning set forth in Section 5(b).

                                       2

<PAGE>

         "Laws" shall mean any applicable statute, Environmental Law (as defined
in the Purchase Agreement), common law, rule, regulation, judgment, order,
ordinance, writ, injunction or decree issued or promulgated by any Governmental
Authority.

         "Leased Employee" shall have the meaning set forth in Section 2(f).

         "Leasing Period" shall have the meaning set forth in Section 2(f).

         "MLP" shall have the meaning set forth in the recitals.

         "Monthly Invoice" shall have the meaning set forth in Section
5(a)(iii).

         "New Omnibus Agreement" shall mean the New Omnibus Agreement, dated the
date hereof, among the Buyer, Williams and the Williams Service Providers named
therein.

         "O&M Employees" shall have the meaning set forth in Section 1A.

         "O&M Services" shall mean all operating and maintenance services of the
same or similar nature which the Williams Service Providers furnished, during
the one-month period ending on the Closing Date, to the Partnership Entities
pursuant to the Services Agreement.

         "Organizational Documents" shall mean certificates of incorporation,
by-laws, certificates of formation, limited liability company operating
agreements, partnership or limited partnership agreements or other formation or
governing documents of a particular entity.

         "Partnership Assets" shall mean the assets and properties of the
Partnership Entities.

         "Partnership Entities" shall mean the General Partner, the MLP and all
of the subsidiaries of the MLP.

         "Partnership Group" shall mean the Partnership Entities, with the
exclusion of the General Partner.

         "Person" shall mean an individual, corporation, partnership, joint
venture, trust, limited liability company, unincorporated organization or any
other entity.

         "Section 4.3(a) Notice" shall mean the notice provided by Buyer to the
Selling Parties pursuant to Section 4.3(a) of the Purchase Agreement which lists
the Business Employees and Additional Employees that have accepted employment
offers with Buyer.

         "Services Agreement" shall have the meaning set forth in the recitals
to this Agreement.

         "Transition Services" shall mean the G&A Services and the O&M Services.

         "Williams Indemnified Parties" shall have the meaning set forth in
Section 9(b).

         "Williams Service Providers" shall mean any subsidiary or affiliate of
Williams that, during the one-month period ending on the Closing Date, was
providing to the Partnership Entities any services pursuant to the Services
Agreement.

                                       3

<PAGE>

         1A. Covered Employees.

         Promptly upon delivery of the Section 4.3(a) Notice to the Selling
Parties by Buyer as required under the Purchase Agreement, and no more than five
(5) days after such delivery, Williams and Buyer shall determine (i) which of
such Business Employees and Additional Employees, as of the Closing Date,
provided O&M Services to the Partnership Entities under the Services Agreement
(the "O&M Employees") and (ii) which of such Business Employees and Additional
Employees, as of the Closing Date, provided G&A Services to the Partnership
Entities under the Services Agreement (the "G&A Employees"), and among the G&A
Employees, which single category of G&A Services (of those categories listed on
Schedule A hereto) they are responsible for providing. Immediately, upon such
determination, Williams and Buyer shall attach such information to this
Agreement as Schedule "C" hereto.

         2. Services.

                  (a) Existing Services Agreement. Williams and the Williams
         Service Providers currently provide certain services to the Partnership
         Entities pursuant to the Services Agreement. Williams shall continue,
         and shall cause the Williams Service Providers to continue, to provide
         such services to the Partnership Entities pursuant to the Services
         Agreement, as further provided in this Agreement; provided, however, in
         the event of the termination of the Services Agreement during the term
         of this Agreement, Williams shall continue, and shall cause the
         Williams Service Providers to continue, to provide, or cause to be
         provided, such services under this Agreement. At any time during the
         term of this Agreement, upon the written request of Williams, Buyer
         shall use its reasonable best efforts to cause the Partnership Entities
         to terminate the Services Agreement as promptly as possible.

                  (b) O&M Services. Until the date that all of the O&M Employees
         are transferred to one or more of the Buyer Entities as provided in
         Section 2(e) below, the Williams Service Providers shall continue to
         provide the O&M Services to the Partnership Entities at a cost
         consistent with the historical cost of providing such services under
         the Services Agreement.

                  (c) G&A Services. The Williams Service Providers shall
         provide, or subject to Section 2(h) below shall cause a third-party to
         provide, to the Buyer (or the Partnership Entity designated by Buyer)
         each category of G&A Services pursuant to the terms of the Services
         Agreement; provided, the obligation to provide any category of G&A
         Services hereunder shall terminate when the group of G&A Employees who
         provides such category of G&A Services is transferred to Buyer or a
         Partnership Entity designated by Buyer as provided in Section 2(e)
         below.

                  (d) Standard for Provision of Transition Services. Williams
         hereby covenants and agrees that the Transition Services will be
         performed (i) in accordance with applicable material Governmental
         Approvals and Laws, (ii) with at least the same level, standard of care
         and timeliness that services were provided to the Partnership Entities
         under the Service Agreement prior to the Closing and (iii) with at
         least the same level, standard of care and timeliness that the Williams
         Service Providers operate assets similar to the

                                       4

<PAGE>

         Partnership Assets. EXCEPT AS SET FORTH IN THIS SECTION AND SECTION
         8(b) HEREOF, WILLIAMS AND THE WILLIAMS SERVICE PROVIDERS MAKE NO
         REPRESENTATION, WARRANTY OR GUARANTY, EXPRESS OR IMPLIED, OF ANY KIND
         CONCERNING THE TRANSITION SERVICES AND ANY RESULTS OR WORK PRODUCT AND
         SPECIFICALLY MAKE NO WARRANTY OF MERCHANTABILITY OR FITNESS FOR A
         PARTICULAR PURPOSE, AND NONE SHALL BE IMPLIED. ALL OTHER
         REPRESENTATIONS, WARRANTIES OR GUARANTEES, WRITTEN OR ORAL, EXPRESS OR
         IMPLIED IN FACT OR IN LAW, AND WHETHER OR NOT BASED ON STATUTE ARE
         EXCLUDED.

                  (e) Transfer of Employees.

                           (i)      To effect the transfer of the O&M Employees,
                  Buyer shall deliver written notice to Williams requesting that
                  all (and not less than all) of the O&M Employees be
                  transferred to Buyer, or one or more of the Partnership
                  Entities designated by Buyer. The O&M Employees shall be
                  transferred within twenty (20) days of the receipt by Williams
                  of such notice, or as soon as practicable thereafter, in
                  either case, as of a date mutually agreed upon by the parties
                  (which shall be the last day of the any month during the term
                  of this Agreement). Upon the transfer of the O&M Employees,
                  the obligation of the Williams Service Providers to continue
                  providing the O&M Services hereunder shall terminate;

                           (ii)     To effect the transfer of one or more groups
                  of G&A Employees that provide a category of G&A Services,
                  Buyer shall deliver written notice to Williams requesting that
                  all (and not less than all) of the G&A Employees comprising
                  each such group be transferred to Buyer, or one or more of the
                  Partnership Entities designated by Buyer. Each such group of
                  G&A Employees shall be transferred within twenty (20) days of
                  the receipt by Williams of such notice, or as soon as
                  practicable thereafter, in either case, as of a date mutually
                  agreed upon by the parties (which shall be the last day of the
                  any month during the term of this Agreement). Upon the
                  transfer of any such group of G&A Employees, the obligation of
                  the Williams Service Providers to continue providing the
                  corresponding category of G&A Services hereunder shall
                  terminate; and

                           (iii)    The transfer of O&M Employees and G&A
                  Employees under this Section 2(e) is subject to Section 2(f)
                  below.

                  (f) Leased Employees. Notwithstanding the provisions of
         Section 2(e) above, Buyer shall lease from Williams the services of
         each of the employees listed on Schedule "B" hereto (each, a "Leased
         Employee") for the period beginning on the date that such employee
         would otherwise be transferred to Buyer (or a Partnership Entity
         designated by Buyer) and ending, with respect to each such employee, on
         the date such employee reaches the age of fifty-five (55) years (the
         "Leasing Period"), for the amount per month previously provided by
         Williams to Buyer in writing, which amount shall include salary and an
         allocation equal to 34% of salary which represents the cost of payroll,
         taxes, benefits and target bonus accruals for such employee (in
         aggregate the "Employee Lease

                                       5

<PAGE>

         Payment"). Buyer shall, or shall cause the Partnership Entities to,
         reimburse Williams for any amounts paid in respect of a Leased Employee
         that are in excess of the target bonus amount with respect to such
         employee. During the Leasing Period, Williams shall have the sole
         responsibility for the payment of salary and providing benefits to the
         Leased Employees. The provisions of this Section 2(f) shall not apply
         in the case of any employee listed on Schedule "B" who reaches the age
         of fifty-five (55) years prior to the date such employee would
         otherwise be transferred to Buyer (or a Partnership Entity designated
         by Buyer) pursuant to Section 2(e) above.

                  (g) Service Changes. Williams and/or the Williams Service
         Providers may at any time, in their sole discretion, change or replace
         any of its (or their) internal or external services, functions or
         features that may affect such Transition Services; provided, that such
         change or replacement does not materially change Williams or the
         Williams Services Providers' performance of the Transition Services.

                  (h) Subcontractors. Williams and the Williams Service
         Providers shall have the right, in their sole discretion, to
         subcontract the performance of services under this Agreement to one or
         more third-parties; provided, that such subcontracting arrangement does
         not materially change Williams or the Williams Services Providers'
         performance of the Transition Services.

                  (i) Transfer upon Termination. Notwithstanding anything else
         in this Agreement, except as provided in Section 2(f), upon the
         termination of this Agreement, any O&M Employees or G&A Employees that
         have not been transferred to Buyer, or a Partnership Entity designated
         by Buyer, shall immediately be transferred to Buyer.

                  (j) Additional Services. Buyer may from time to time during
         the term of this Agreement request that Williams or a Williams Service
         Provider to provide additional services in accordance with the
         provisions of this Agreement that are not included in the definition of
         Transition Services. Upon receipt of any such request, Williams shall
         consider in good faith as to whether to provide such additional
         services and notify Buyer as to whether Williams is willing to provide
         or perform such service, and if so, shall submit to Buyer an estimate
         of the cost of such services; provided, Williams shall not unreasonably
         refuse to provide such additional services to Buyer. Buyer shall then
         promptly review such estimate and notify Williams in writing as to
         Buyer's concurrence or non-concurrence with such estimated costs. If
         Buyer concurs with such estimated costs, Buyer may notify Williams to
         proceed to provide or cause such services to be provided to Buyer, or
         the Partnership Entity designated by Buyer. Williams shall not be
         obligated to provide any such services to Buyer or the Partnership
         Entities other than pursuant to this Section 2(j). Any such services
         provided pursuant to this Section 2(j) shall be referred to as
         "Additional Services."

                                       6

<PAGE>

         3. [Reserved].

         4. Term and Termination.

                  (a) Term. The term of this Agreement shall commence on the
         Closing Date and shall continue until the earlier of (i) the date on
         which all of the O&M Employees and G&A Employees have been transferred
         to Buyer, or one or more of the Partnership Entities designated by
         Buyer, or (ii) the last day of the ninth (9th) full calendar month
         following the calendar month in which the Closing Date occurs;
         provided, however, Buyer may, upon written notice delivered to and
         received by Williams not less than ten (10 days) prior to the date
         referred to in clause (ii) above, extend the term of this agreement
         until the last day of the twelfth (12th) full calendar month following
         the calendar month in which the Closing Date occurs; provided, further,
         that upon any such extension by Buyer, the aggregate amount payable by
         Buyer set forth on each Monthly Invoice following such extension shall
         be increased by five percent (5%).

                  (b) Termination of Transition Services. Except as provided in
         Section 4(c) or as otherwise provided in this Section 4(b), the
         provision of Transition Services by Williams and/or the Williams
         Service Providers will terminate upon the transfer of the employees
         associated with such service as provided under Section 2(e) above. With
         respect to any category of G&A Services, with respect to which there
         are no G&A Employees associated with such category, Buyer may elect, by
         giving not less ten (10) days advance written notice to Williams to
         terminate the provision by Williams or any Williams Service Provider of
         such category(ies) of Transition Services; provided, such categories of
         G&A Services shall only be terminated as of the last day of the month.
         The Buyer Entities shall have the right to immediately commence,
         whether directly or indirectly through third parties, the performance
         of any of the Transition Services, without advance notice to Williams,
         in the event of any event or occurrence of an emergency nature, in the
         event that Williams or any Williams Service Provider is unable to
         perform any such service because of the occurrence of a Force Majeure
         Event or in the event of any bankruptcy, insolvency or similar
         proceeding affecting Williams or any Williams Service Provider, without
         any obligation to Williams other than for Transition Services
         previously performed.

                  (c) Williams' Right to Suspend Performance or Terminate the
         Agreement. Williams shall have the right to suspend the performance of
         its obligations under this Agreement in the event of the Buyer
         Entities' failure to make payments due, owing and not disputed in good
         faith pursuant to Section 5(b) hereof or properly set off pursuant to
         Section 9.5 of the Purchase Agreement, to Williams under this
         Agreement, and such failure has not been cured within thirty (30) days
         after written notice of such failure to Buyer. In the event a Buyer
         Entity cures such payment default within sixty (60) days, Williams
         shall resume the performance of its obligations hereunder. Williams
         shall have the right to terminate this Agreement in the event such
         failure to make payment has not been cured within sixty (60) days after
         written notice of such failure to the Buyer.

                                       7

<PAGE>

                  (d) Effect of Termination. Upon termination of this Agreement
         or any category of Transition Services, Williams and Williams Service
         Providers shall have no further obligation to provide such Transition
         Services to any of the Buyer Entities hereunder.

         5. Billing and Payment.

                  (a) Fees. Subject to Buyer's off-set rights contained in
         Section 9.5 of the Purchase Agreement, Buyer shall, or shall cause a
         Partnership Entity to, reimburse Williams for the Transition Services
         in accordance with this Section 5.

                           (i)      O&M Services Fee. Buyer shall, or shall
                  cause a Partnership Entity to, reimburse the Williams Service
                  Providers each month an amount equal to the cost of providing
                  the O&M Services, as set forth in the Monthly Invoice, except
                  that payment shall be made as provided in Section 5(a)(iii)
                  below.

                           (ii)     G&A Services Fee. Beginning on the Closing
                  Date, the Buyer Entities shall, or shall cause a Partnership
                  Entity to, pay Williams each month for G&A Services (the "G&A
                  Service Fee") an amount equal to $2,898,913 (which amount
                  represents the sum of the monthly service fees for each of the
                  separate categories of G&A Services set forth on Schedule "A"
                  hereto), subject to Article VII of the New Omnibus Agreement.
                  Upon receipt of notice from Buyer pursuant to Section 4(b)
                  requesting the termination of one or more categories of G&A
                  Services, the G&A Service fee shall be reduced by the amount
                  of the monthly service fee set forth on Schedule "A" for each
                  such category of G&A Services to be terminated, effective as
                  of the beginning of the month immediately following the month
                  in which each such category of G&A Services has been
                  terminated pursuant to Section 4 hereof.

                           (iii)    Billing. On or before the twentieth (20th)
                  day of each month, Williams shall provide to the Buyer one or
                  more written invoices (collectively, the "Monthly Invoice"),
                  setting out the total amount due Williams for (A) G&A Service
                  Fee, (B) the cost of O&M Expenses provided in the immediately
                  preceding month, (C) the Employee Lease Payment and (D) the
                  cost of any Additional Services provided in the immediately
                  preceding month, subject, if applicable, to the final proviso
                  of Section 4(a) above. Items properly invoiced and not
                  disputed in good faith by the Buyer are due and payable within
                  fifteen (15) days following the date of such invoice;
                  provided, that the Buyer shall give written notice on or
                  before the due date of any Williams invoice of any good faith
                  dispute of all or any portion of such Monthly Invoice, with
                  the particulars of such dispute, which dispute shall be
                  resolved in the manner provided in Section 5(b) below.

                  (b) Disputes. If there is a dispute between a Buyer Entity, on
         the one hand, and Williams or a Williams Service Provider, on the other
         hand, regarding the amounts shown as billed to the Buyer on any Monthly
         Invoice, (i) Williams shall, where applicable and practicable, furnish
         or cause to be furnished to the Buyer additional supporting
         documentation to reasonably substantiate the amounts billed including
         listings

                                       8

<PAGE>

         of the dates, times and amounts of the Transition Services in question,
         and (ii) the Buyer Entities may withhold payment with respect to all or
         any portion of such invoiced amounts that such Buyer Entity believes in
         good faith are inaccurate or are otherwise not in accordance with the
         terms of this Agreement until resolution in accordance with the
         procedures set forth below in this Section 5(b); provided that the
         Buyer Entities shall pay any undisputed portion of such amount in
         accordance with Section 5(a).

                  Upon delivery of such additional documentation, Williams and
         the Buyer Entities shall cooperate and use their reasonable efforts to
         resolve such dispute. If they are unable to resolve their dispute
         within twenty (20) business days of the delivery of such additional
         supporting documentation by Williams, then the dispute shall be
         referred for resolution by a firm of independent accountants of
         nationally recognized standing (the "Accounting Referee") to be
         selected in the following manner: Williams will select three (3)
         candidates and deliver a written notice containing the names of such
         candidates to Buyer, and within five (5) days of receiving such notice,
         Buyer will select one of such three candidates to serve as the
         Accounting Referee. The Accounting Referee may not be otherwise engaged
         by Williams or Buyer, or their respective Affiliates, in connection
         with the transactions contemplated under this Agreement or the
         Transaction Documents and may not have performed any material services
         on behalf of Williams or Buyer, or their respective Affiliates, during
         the five (5) years immediately preceding the date of this Agreement.
         The Accounting Referee shall determine the validity of the disputed
         amounts within thirty (30) days of the referral of such dispute to such
         Accounting Referee. The determination of the Accounting Referee shall
         not require the Buyer Entities to pay more than the amount in dispute
         nor require any Williams Service Provider to return any amount
         previously paid by the Buyer Entities. The determination of the
         Accounting Referee shall be finally binding. The fees and expenses of
         the Accounting Referee shall be borne (i) by the Buyer if the
         difference between the amount set forth in such determination by the
         Accounting Referee (the "Determination Amount") and the Buyer's
         estimation of what the invoice amount should have been (which the Buyer
         shall provide to the Accounting Referee at such time the dispute is
         referred to such Accounting Referee) is greater than the difference
         between the Determination Amount and the amount set forth on the
         Monthly Invoice, (ii) by Williams if the first such difference is less
         than the second such difference and (iii) otherwise equally by Williams
         and the Buyer; provided, if any invoice dispute is resolved in favor of
         the Buyer Entities and Buyer has paid such amount, Williams shall
         offset the amount of any overpayment against future invoices to Buyer;
         or, if there are no additional invoices to be paid, Williams shall
         refund any amount owed within fifteen (15) days of resolution of the
         dispute. Such offset or refund shall be credited or paid to Buyer
         together with interest at the Interest Rate from the date of
         overpayment to Williams until the date of such offset or refund. If a
         dispute is resolved in favor of Williams, Buyer shall, or shall cause
         the Buyer Entities to, pay interest on the undisputed amount of an
         invoice from the due date thereof up to and including the date when
         such amount and interest thereon are paid in full, at the rate per
         annum equal to the rate published as the "prime rate" in The Wall
         Street Journal for the first business day of the month in which such
         invoice is paid, plus 2%, but in no event at any rate that is greater
         than the maximum interest rate allowed by applicable Laws (such rate,
         the "Interest Rate").

                                       9

<PAGE>

                  (c) Buyer's Audit Rights. Buyer shall have the right, at any
         time within three (3) months after the date of any Williams invoice for
         reimbursement of costs of Transition Services to audit those books and
         records of Williams and any Williams Service Provider that provided
         Transition Services or which books and records relate to the Transition
         Services covered by such invoice, to verify the items reflected on such
         invoice. Any such audit shall be conducted during normal business hours
         by Buyer or its designated auditor after ten (10) days prior written
         notice to Williams, at Buyer's sole cost and expense, in the offices of
         Williams and the relevant Williams Service Provider or such other
         location as may be mutually agreed. Williams shall cooperate and shall
         cause any relevant Williams Service Provider to cooperate with and
         provide reasonable assistance to Buyer and/or its auditor in connection
         with the performance of any such audit. Buyer shall assert any claim
         for refund of costs of Transition Services reimbursed to Williams under
         the audited invoice within thirty (30) days after the completion of the
         audit. Williams shall have thirty (30) days from receipt of Buyer's
         claim for refund to respond. If Williams does not dispute Buyer's
         refund claim, Williams shall offset the overpayment against future
         invoices; or, if there are no additional invoices to be paid, Williams
         shall pay such refund within such 30-day period; such offset or refund
         shall be credited or paid together with interest at the Interest Rate
         from the date of Buyer's overpayment to Williams until the date of such
         offset or refund of such overpayment is credited or paid. Should
         Williams dispute the claim and refuse to pay any refund claim by Buyer
         resulting from the exercise of Buyer's audit rights, the parties will
         refer the dispute to an Accounting Referee in the manner described in
         Section 5(b) above.

         6. Confidentiality of Information.

                  (a) General. During the term of this Agreement and for a
         period of one (1) year following the termination of this Agreement,
         neither Party (as defined below in this Section 6(a)) shall, directly
         or indirectly, disclose to any Person any information received,
         obtained or created that is not in the public domain or generally known
         in the industry, in any form, whether acquired prior to or after the
         Closing Date, relating to the business and operations of the other
         Party. Notwithstanding the foregoing, either Party may disclose any
         information relating to the business and operations of the other Party
         (i) if required by Law or applicable stock exchange rule, and (ii) to
         such other Persons if, at the time such information is provided, such
         Person is already in the possession of such information. For purposes
         of this Section 6, each of Buyer and its affiliates, on the one hand,
         and Williams and its affiliates, on the other hand, shall be a "Party."

                  (b) Obligations upon Termination. Upon termination of this
         Agreement, except as otherwise provided in this Agreement or in the
         Purchase Agreement, each Party agrees to turn over to the other Party
         or destroy such confidential information in its possession, but only in
         accordance with the instructions of the other Party; provided, however,
         that each Party may maintain one archive copy of all of such
         confidential information that was generated during the term of this
         Agreement in a secure data storage facility.

         7. Relationships Among the Parties. It is the intent of the parties
that with respect to the provision of Transition Services pursuant to this
Agreement, Williams and the Williams Service Providers are independent
contractors, with authority to control, direct and oversee their

                                       10

<PAGE>

performance of the Transition Services, subject to the overall direction and
control of the representatives of the Buyer Entities. Nothing in this Agreement
shall cause the relationship between Williams and the Williams Service Providers
on the one hand, and Buyer and the Partnership Entities on the other hand, to be
deemed to constitute an agency, partnership or joint venture. The terms of this
Agreement are not intended to constitute a joint employer for any purpose
between any of the parties and their affiliates. Neither Williams nor the
Williams Service Providers shall have or hold itself out as having, any
authority to enter into any contract or create any obligation or liability on
behalf of, in the name of, or binding upon the Buyer Entities except as
specifically provided in this Agreement.

         8. Representations and Warranties.

                  (a) Representations and Warranties of Buyer. As of the date of
         this Agreement, Buyer represents and warrants as follows:

                           (i)      Organization. Buyer is a limited partnership
                  duly organized, validly existing and in good standing under
                  the laws of the state of Delaware and has all requisite power
                  and authority to own its properties and assets and to conduct
                  its business as now conducted.

                           (ii)     Validity of Agreement. Buyer has the power
                  to enter into this Agreement and to carry out its obligations
                  hereunder. The execution and delivery of this Agreement and
                  the performance of the Buyer's obligations hereunder have been
                  duly authorized by its general partner, and no other
                  proceedings on the part of Buyer are necessary to authorize
                  such execution, delivery and performance. This Agreement has
                  been duly executed by Buyer and constitutes the valid and
                  binding obligation of Buyer enforceable against Buyer in
                  accordance with its terms (except to the extent that its
                  enforceability may be limited by applicable bankruptcy,
                  insolvency, reorganization or other similar law affecting the
                  enforcement of creditors' rights generally or by general
                  equitable principles).

                           (iii)    No Conflict or Violation; No Defaults. The
                  execution, delivery and performance by Buyer of this Agreement
                  does not and will not violate or conflict with any provision
                  of its organizational documents and does not and will not
                  violate any applicable provision of law, or any order,
                  judgment or decree of any Governmental Authority, nor violate
                  or result in a breach of or constitute (with due notice or
                  lapse of time or both) a default under any contract, lease,
                  loan agreement, mortgage, security agreement, trust indenture
                  or other agreement or instrument to which Buyer is a party or
                  by which it is bound or to which its properties or assets is
                  subject, nor result in the creation or imposition of any
                  encumbrance upon any of its properties or assets where such
                  violations, breaches or defaults in the aggregate would have a
                  material adverse effect on the transactions contemplated
                  hereby or on the assets, properties, business, operations, net
                  income or financial condition of Buyer.

                  (b) Representations and Warranties of Williams. As of the date
         of this Agreement, Williams represents and warrants as follows:

                                       11

<PAGE>

                           (i)      Corporate Organization. Williams is a
                  corporation duly organized, validly existing and in good
                  standing under the laws of the state of Delaware and has all
                  requisite power and authority to own its properties and assets
                  and to conduct its business as now conducted.

                           (ii)     Validity of Agreement. Williams has the
                  power to enter into this Agreement and to carry out its
                  obligations hereunder. The execution and delivery of this
                  Agreement and the performance of Williams' obligations
                  hereunder have been duly authorized by its Boards of Directors
                  and no other proceedings on the part of Williams are necessary
                  to authorize such execution, delivery and performance. This
                  Agreement has been duly executed by Williams and constitutes
                  the valid and binding obligation of Williams enforceable in
                  accordance with its terms against Williams (except to the
                  extent that its enforceability may be limited by applicable
                  bankruptcy, insolvency, reorganization or other similar law
                  affecting the enforcement of creditors' rights generally or by
                  general equitable principles).

                           (iii)    No Conflict or Violation; No Defaults. The
                  execution, delivery and performance by Williams of this
                  Agreement does not and will not violate or conflict with any
                  provision of its organizational documents and does not and
                  will not violate any applicable provision of law, or any
                  order, judgment or decree of any Governmental Authority, nor
                  violate or result in a breach of or constitute (with due
                  notice or lapse of time or both) a default under any contract,
                  lease, loan agreement, mortgage, security agreement, trust
                  indenture or other agreement or instrument to which Williams
                  is a party or by which it is bound or to which any of its
                  properties or assets is subject, nor result in the creation or
                  imposition of any encumbrance upon any of its properties or
                  assets where such violations, breaches or defaults in the
                  aggregate would have a material adverse effect on the
                  transactions contemplated hereby or on the assets, properties,
                  business, operations, net income or financial condition of
                  Williams.

         9. Indemnification; Release; Limit on Liability.

                  (a) Williams and the Williams Service Providers shall, jointly
         and severally, indemnify and hold harmless the Buyer Entities and each
         of their respective officers, directors, employees, agents and
         affiliates (and the officers, directors, employees and agents of such
         affiliates) (the "Buyer Indemnified Parties") from and against any and
         all losses, claims, demands, damages, fines, penalties, injuries,
         liabilities, suits, obligations to indemnify others, judgments,
         expenses or costs (including reasonable attorneys', consultants' and
         experts' fees and other expenses incurred in the defense of any claim
         or lawsuit in the enforcement of this indemnity obligation) (each, a
         "Claim") arising out of, relating to or resulting from the Williams
         Service Providers' performance of the services specified under this
         Agreement to the extent such Claim results from Williams or the
         Williams Service Providers' negligence or willful failure to perform
         their obligations hereunder.

                                       12

<PAGE>

                  (b) The Buyer Entities shall, jointly and severally, indemnify
         and hold harmless Williams and the Williams Service Providers, and each
         of their respective officers, directors, employees, agents and
         affiliates (and the officers, directors, employees and agents of such
         affiliates) ("Williams Indemnified Parties") if any of the Williams
         Indemnified Parties shall at any time or from time to time be subject
         to any Claims arising out of, relating to or resulting from the
         performance of the services specified under this Agreement by either
         party except to the extent such Claim results from the Williams
         Indemnified Parties' negligence or willful failure to perform their
         obligations hereunder.

                  (c) Notwithstanding anything to the contrary in this
         Agreement, the Buyer Entities shall not be liable to any of the
         Williams Indemnified Parties, nor shall Williams or the Williams
         Service Providers be liable to any of the Buyer Indemnified Parties,
         for any exemplary, punitive, special, indirect, consequential, remote,
         or speculative damages (including, without limitation, any damages on
         account of lost profits or opportunities) resulting from or arising out
         of this Agreement or the transactions contemplated hereby.

                  (d) The obligations of the Parties in this Section 9 shall not
         limit their respective indemnification obligations, or those of their
         affiliates, under the Purchase Agreement.

         10. Schedules. The Schedules to this Agreement that are specifically
referred to herein are a part of this Agreement as if fully set forth herein.
All references herein to Articles, Sections, subsections, paragraphs,
subparagraphs, clauses and Schedules shall be deemed references to such parts of
this Agreement, unless the context shall otherwise require.

         11. Force Majeure. If by reason of a Force Majeure Event either party
is rendered unable, in whole or in part, to perform its obligations under this
Agreement, other than the obligation to make payments of money then due, such
party shall be excused from such performance to the extent it is prevented by,
and during the continuance of, such Force Majeure Event. The party whose
performance is affected by an Force Majeure Event shall (i) give the other party
notice of the occurrence of such Force Majeure Event as soon as practicable and
(ii) use all commercially reasonable efforts to remedy the cause(s) and
effect(s) of such Force Majeure Event with all reasonable dispatch; provided,
however, that the affected party shall not be obligated to undertake
commercially unreasonable costs or burdens in order to overcome the effects of
the Force Majeure Event and reinstate full performance of its obligations under
this Agreement.

         12. Notices. Any notice or other communication required or permitted
hereunder shall be in writing and shall be deemed given if delivered personally,
by facsimile (which is confirmed) or sent by overnight courier (providing proof
of delivery), to the parties at the following address:

         (a)      If to Williams:

         The Williams Companies, Inc.
         One Williams Center
         Tulsa, Oklahoma 74172

                                       13

<PAGE>

         Facsimile: (918) 573-4503
         Attention: Mr. Tony Gehres

         (b)      If to the Buyer Entities:

         WEG Acquisitions, L.P.
         c/o WEG GP LLC
         One Williams Center
         Tulsa, Oklahoma 74172
         Facsimile: (918) 573-6928
         Attention:  Mr. Lonny Townsend

         with a copy to:

         Vinson & Elkins L.L.P.
         666 Fifth Avenue
         26th Floor
         New York, New York 10103
         Facsimile: (917) 206-8100
         Attention: Mr. Mike Rosenwasser

Any party may, by notice given in accordance with this Section 12 to the other
parties, designate another address or person for receipt of notices hereunder
provided that notice of such a change shall be effective upon receipt.

         13. Successors and Assigns. This Agreement shall inure to the benefit
of, and be binding upon, Williams and Buyer and their respective successors and
permitted assigns. No party may assign or otherwise transfer all or any of its
rights, benefits or obligations hereunder without the prior written consent of
the other party, and any assignment without such consent shall be void; provided
however, that, upon written notice to the other party but without the prior
written consent of such other party, a party may assign or otherwise transfer
its rights, benefits and obligations hereunder to another person or entity in
connection with an acquisition, merger, consolidation, sale of assets or other
transaction involving such other person or entity and constituting a change of
control of such party hereto.

         14. Headings. The headings in this Agreement are for reference only,
and shall not affect the interpretation of this Agreement.

         15. Signatures Counterparts. Facsimile transmission of any signed
original document and/or retransmission of any signed facsimile transmission
shall be the same as delivery of an original. At the request of Buyer or
Williams, the parties will confirm facsimile transmission by signing a duplicate
original document. This Agreement may be executed in two or more counterparts,
each of which shall be deemed an original and all of which together shall be
considered one and the same agreement.

                                       14

<PAGE>

         16. Amendments. This Agreement may be amended, modified or supplemented
only by a written instrument executed by Williams and Buyer. The execution of
such instrument by any Partnership Entity shall not be required.

         17. Governing Law. This Agreement shall be governed and construed in
accordance with the internal and substantive laws of New York and without regard
to any conflicts of laws concepts that would apply the substantive law of some
other jurisdiction.

         18. Entire Agreement. This Agreement, together with the Schedules
attached hereto, and the provisions of the Purchase Agreement relating hereto,
represent the entire agreement and understanding of the parties hereto and
thereto with reference to the transactions set forth herein. This Agreement,
together with the Schedules attached hereto, and the provisions of the Purchase
Agreement relating hereto, supercede all prior negotiations, discussions,
correspondence, communications, understandings and agreements between the
parties relating to the transactions set forth herein and all prior drafts
hereof (including Exhibit 1.2(a)(iv)(2) to the Purchase Agreement). No prior
drafts hereof and no words or phrases from any such prior drafts shall be
admissible into evidence in any action or suit involving this Agreement.

         19. Negotiated Agreement. This Agreement has been negotiated by the
parties and the fact that the initial and final draft will have been prepared by
either party will not give rise to any presumption for or against any party to
this Agreement or be used in any respect or forum in the construction or
interpretation of this Agreement or any of its provisions.

         20. Waiver. No consent or waiver, express or implied, by any party to
or of any breach or default by any other party in the performance by such other
party of its obligations hereunder shall be deemed or construed to be a consent
or waiver to or of any other breach or default in the performance of obligations
hereunder by such other party hereunder. Failure on the part of any party to
complain of any act or failure to act of any other party or to declare any other
party in default, irrespective of how long such failure continues, shall not
constitute a waiver by such first party of any of its rights hereunder.

         21. Severability. If any term, provision, covenant or restriction of
this Agreement is held by a court of competent jurisdiction to be invalid, void
or unenforceable, each of Williams and Buyer directs that such court interpret
and apply the remainder of this Agreement in the manner that it determines most
closely effectuates their intent in entering into this Agreement, and in doing
so particularly take into account the relative importance of the term,
provision, covenant or restriction being held invalid, void or unenforceable.

         22. Interpretation. Whenever the words "include," "includes," or
"including," are used in this Agreement, they shall be deemed to be followed by
the words "without limitation."

         23. Third Party Beneficiaries. Except for the Buyer Entities other than
the Buyer (including the Partnership Entities) and Williams Service Providers,
which are intended third party beneficiaries, and except as set forth in
Sections 9 and 13, nothing in this Agreement is intended or shall be construed
to give any person, other than the parties hereto, their successors and
permitted assigns, any legal or equitable right, remedy or claim under or in
respect of this Agreement or any provision contained herein.

                                       15

<PAGE>

         24. Agreement Binding on Entities Other Than Parties. Buyer shall use
commercially reasonable efforts to cause the Partnership Entities to be bound by
the terms and conditions of this Agreement, and Buyer shall be responsible for
any breaches thereof by any such Partnership Entity. The Buyer Entities are
jointly and severally liable hereunder.

         25. Press Release. Except as required by Laws or applicable stock
exchange rules, neither party shall issue any press releases relating to or
arising out of the performance of this Agreement without the prior written
consent and approval of the content of such statement by the other party (which
consent shall not be unreasonably withheld).

         26. Reasonable Cooperation. During the term of this Agreement, each of
the parties shall reasonably cooperate with each other to perform its
obligations under this Agreement, including without limitation, agreeing to
negotiate in good faith to enter into an amendment to this Agreement upon the
written request of either party.

                                       16

<PAGE>

         IN WITNESS WHEREOF, the parties have caused this Agreement to be
executed and delivered by their duly authorized officers as of the date first
above written.

                                      THE WILLIAMS COMPANIES, INC.
                                      A DELAWARE CORPORATION

                                      By: /s/ Phillip D. Wright
                                          -------------------------------
                                      Name: Phillip D. Wright
                                      Title: Authorized Signatory

                                      WEG ACQUISITIONS, L.P.
                                      A DELAWARE LIMITED PARTNERSHIP

                                      By: WEG Acquisition Management, LLC
                                          its General Partner

                                      By: /s/ Justin S. Huscher
                                          --------------------------------
                                      Name: Justin S. Huscher
                                      Title: Authorized Signatory

                                      By: /s/ Pierre F. Lapeyre, Jr.
                                          ---------------------------------
                                      Name: Pierre F. Lapeyre, Jr.
                                      Title: Authorized Signatory

                                       17

<PAGE>

                                  SCHEDULE "A"

                                  G&A SERVICES

<TABLE>
<CAPTION>
                                                                                                  Monthly
                        Category of G&A Services                                              G&A Services Fee
                        ------------------------                                              ----------------
<S>                                                                                           <C>
1.  Technical services, including engineering, project management,
    corrosion control, environmental, health and safety services (excludes
    $30,583 estimated monthly bonus accrual and $22,702 benefits)                                 $746,715

2.  Pipeline commercial services, including commercial, business
    development, tariffs, and operations management for the Pipeline
    Group (excludes $31,417 in estimated monthly bonus accrual and
    $12,231 benefits)                                                                             $423,019

3.  Terminals commercial services, including commercial, business
    development and operations management for the Terminals Group
    (excludes $22,833 in estimated monthly bonus accrual and $7,508
    benefits)                                                                                     $286,325

4.  Services of CEO, CFO and their staffs, including investor relations
    and planning (excludes $16,750 in estimated monthly bonus accrual
    and $2,976 benefits)                                                                          $113,607

5.  Information technology services, including business, financial and
    HR applications and network, hardware and website support
    (excludes $12,500 in estimated monthly bonus accrual and $10,518
    benefits),* subdivided as follows:                                                            $710,000
    a.  ATLAS                                                                                     $193,000
    b.  Terminals Application (TAS)                                                               $ 49,000
    c.  Pipeline Applications (SCADA, Magic, Squire)                                              $ 54,000
    d.  Environmental Management                                                                  $  9,000
    e.  GIS                                                                                       $  1,000
    f.  Livelink                                                                                  $  6,000
    g.  Financial applications, including accounts payable/receivable,
           general ledger, financial reporting, purchasing)                                       $ 13,000
    h.  HR/Payroll applications                                                                   $ 46,000
    i.  Personal computing infrastructure (PC procurement, helpdesk,
           email, security)                                                                       $174,000
    j.  Hardware Leases                                                                           $ 27,000
    k.  Network support, including LAN and WAN routers                                            $138,000

6.  Accounting services, including business, general, accounts payable,
    property and management accounting and accounting services for                                $192,673
</TABLE>

                                      A-1

<PAGE>

<TABLE>
<S>                                                                                             <C>
    SEC reporting (excludes $9,083 in estimated monthly bonus accrual and $6,577 benefits),
    subdivided as follows:
    a.  Financial Reporting                                                                     $   27,365
    b.  General Accounting                                                                      $   33,522
    c.  Accounts Payable                                                                        $   24,068
    d.  Revenue Accounting                                                                      $   82,049
    e.  Property Accounting                                                                     $   25,669

7.  Human resources and benefits administration, including HR
    generalists, compensation benefits analysts and benefits
    administration and employee communications (excludes $5,250 in
    estimated monthly bonus accrual and $2,710 benefits)                                        $  167,040

8.  Legal services of internal and external attorneys for legal services
    including contract negotiation, business advice, corporate secretary,
    general business advice, and services of general counsel (excludes
    $10,583 in estimated monthly bonus accrual and $2,102 benefits)                             $  120,648

9.  Governmental Affairs and regulatory representation (excludes $3,250
    in estimated monthly bonus accrual and $446 benefits)                                       $   37,971

10. Tax services, including state and local taxes, ad valorem tax,
    transactional taxes, and federal K-1 reporting assistance (excludes
    $2,167 in estimated monthly bonus accrual and $1,209 benefits)                              $   38,291

11. Internal audit and compliance services (excludes $2,167 in estimated
    monthly bonus accrual and $676 benefits)                                                    $   22,157

12. Risk management and insurance services                                                      $    8,333

13. Treasury services, including cash management and wire/ACH
    processing (excludes  $167 in estimated monthly bonus accrual and
    $143 benefits)                                                                              $    8,024

14. Administrative services, including mail services, fax and copier
    leases, records management, office services, and parking subsidy
    (excludes $500 in estimated monthly bonus accrual and $390
    benefits)                                                                                   $   24,110
                                                                                                ----------
        TOTAL                                                                                   $2,898,913
</TABLE>

*    Notes to Item 5 above:

     -    Individual PC leases will be reduced following transfer of payment
          responsibilities.

     -    Network circuit charges (Williams' billed amount) will be reduced
          following circuit transfers.

     -    Computing (subcategory "i .") shall remain for the duration of the
          Agreement.

     -    Subcategories "a." through "j." shall not be subdivided; Buyer shall
          assume cost until the entire service represented by any such
          subcategory is removed.

                                      A-2

<PAGE>

                                  SCHEDULE "B"

                           POTENTIAL LEASED EMPLOYEES*

<TABLE>
<CAPTION>
----------------------------------------------------------------------------
  Employee Name                    Date of Birth              Lease End Date
----------------------------------------------------------------------------
<S>                                <C>                        <C>
Kent Pribil                           7/4/1948                   7/11/2003
--------------------------------------------------------------------------
Elsie Harmon                         8/14/1948                   8/22/2003
--------------------------------------------------------------------------
Shirley Maxon                        8/18/1948                   8/22/2003
--------------------------------------------------------------------------
Patricia L. Jones                    9/21/1948                   10/3/2003
--------------------------------------------------------------------------
Jimmie D. Hamilton                  10/28/1948                  10/31/2003
--------------------------------------------------------------------------
Karl A. Erickson                     11/8/1948                  11/14/2003
--------------------------------------------------------------------------
</TABLE>

* Each potential Leased Employees listed above shall become a Leased Employee in
accordance with Section 2(f) of this Agreement.

                                      B-1

<PAGE>

                                  SCHEDULE "C"

                   POTENTIAL O&M EMPLOYEES AND G&A EMPLOYEES*

                               [See Attached List]

* This Schedule shall be finalized no more than five (5) days after delivery of
the Section 4.3(a) Notice to the Selling Parties.

                                       C-1<PAGE>

                                                                  EXECUTION COPY

                                                                    EXHIBIT 10.9

================================================================================

                              NEW OMNIBUS AGREEMENT

                                      among

                             WEG Acquisitions, L.P.,

                         Williams Energy Services, LLC,

                       Williams Natural Gas Liquids, Inc.

                                       and

                          The Williams Companies, Inc.

================================================================================

<PAGE>

                              NEW OMNIBUS AGREEMENT

         THIS NEW OMNIBUS AGREEMENT (the "Agreement") is entered into on, and
effective as of, June 17, 2003 among WEG Acquisitions, L.P., a Delaware limited
partnership ("Buyer"), Williams Energy Services, LLC, a Delaware limited
liability company ("WES"), Williams Natural Gas Liquids, Inc., a Delaware
corporation ("WNGL"), and The Williams Companies, Inc., a Delaware corporation
("Williams", and together with WES and WNGL, the "Williams Parties").

                                R E C I T A L S:

         WHEREAS, Williams, WES, WNGL, Williams Pipe Line Company, LLC, a
Delaware limited liability company ("WPL"), Williams Energy Partners, L.P., a
Delaware limited partnership (the "MLP"), Williams OLP, L.P., a Delaware limited
partnership (the "OLP"), Williams GP LLC, a Delaware limited liability company
(the "Old GP"), and Williams Information Technology, Inc. (f/k/a Williams
Information Services Corporation), a Delaware corporation, entered into that
certain Omnibus Agreement, effective as of February 9, 2001, as amended by the
Amendment I thereto, dated January 28, 2002, the Second Amendment thereto, dated
April 11, 2002, and the Third Amendment thereto, dated September 30, 2002 (as
amended, the "Old Omnibus Agreement");

         WHEREAS, Buyer, WES, WNGL and the Old GP have entered into that certain
Purchase Agreement, dated as of April 18, 2003, as amended by Amendment No. 1
thereto dated as of May 5, 2003 (as amended, the "Purchase Agreement"), for the
purchase and sale of all of the membership interests of WEG GP LLC, a Delaware
limited liability company ("WEG GP LLC"), all of the common units and
subordinated units representing limited partner interests in the MLP owned by
WES and WNGL, and all of the class B common units representing limited partner
interests in the MLP owned by the Old GP (as contemplated in the Purchase
Agreement, the "Transaction");

         WHEREAS, the Old Omnibus Agreement will terminate upon closing of the
Transaction (the "Closing" and the date on which the Closing occurs, the
"Closing Date"); and

         WHEREAS, the parties hereto specifically intend for each of the
entities comprising the Partnership Entities and the Partnership Group, as
applicable, to be third-party beneficiaries with respect to certain of the
rights and benefits herein of the parties hereto.

         NOW, THEREFORE, in consideration of the premises and the covenants,
conditions, and agreements contained herein, and for other good and valuable
consideration, the receipt and sufficiency of which are hereby acknowledged, the
parties hereto hereby agree as follows:

                                    ARTICLE I
                                   DEFINITIONS

         1.1      DEFINITIONS.

                  (a)      Capitalized terms used herein but not defined shall
have the meanings given to them in the MLP Agreement.

Page                                                                           1

<PAGE>

                  (b)      As used in this Agreement, the following terms shall
have the respective meanings set forth below:

                  "Accounting Referee" is defined in Section 9.1(a).

                  "Acquisition Date" means April 11, 2002, the date WES
         contributed and the MLP acquired all of the membership interests in
         WPL.

                  "Affiliate" of a Person means a Person that directly or
         indirectly, through one or more intermediaries, controls, is controlled
         by, or is under common control with, the first-mentioned Person.

                  "Applicable Period" means the period commencing on the Closing
         Date and terminating on the second (2nd) anniversary of the Closing
         Date.

                  "Assignee" is defined in the MLP Agreement.

                  "Buyer" is defined in the introduction to this Agreement.

                  "Buyer Entities" means the Buyer and any entity that directly,
         or indirectly through one or more intermediaries, is controlled by the
         Buyer, including WEG GP LLC (but excluding each entity comprising the
         Partnership Group).

                  "Buyer Offer" is defined in Section 3.3(a).

                  "Change of Control" means, with respect to any Person (the
         "Applicable Person"), any of the following events:

                           (i)      any sale, lease, exchange or other transfer
         (in one transaction or a series of related transactions) of all or
         substantially all of the Applicable Person's assets to any other
         Person, unless immediately following such sale, lease, exchange or
         other transfer such assets are owned, directly or indirectly, by the
         Applicable Person;

                           (ii)     the consolidation or merger of the
         Applicable Person with or into another Person pursuant to a transaction
         in which the outstanding Voting Securities of the Applicable Person are
         changed into or exchanged for cash, securities or other property, other
         than any such transaction where (a) the outstanding Voting Securities
         of the Applicable Person are changed into or exchanged for Voting
         Securities of the surviving corporation or its parent and (b) the
         holders of the Voting Securities of the Applicable Person immediately
         prior to such transaction own, directly or indirectly, not less than a
         majority of the Voting Securities of the surviving corporation or its
         parent immediately after such transaction;

                           (iii)    a "person" or "group" (within the meaning of
         Sections 13(d) or 14(d)(2) of the Exchange Act) being or becoming the
         "beneficial owner" (as defined in Rules 13d-3 and 13d-5 under the
         Exchange Act, except that a person or group shall be deemed to have
         "beneficial ownership" of all Voting Securities that such person or
         group has the right to acquire, whether such right is exercisable
         immediately or only after the

Page                                                                           2

<PAGE>

         passage of time) of more than 50% of all of the then outstanding Voting
         Securities of the Applicable Person, except in a merger or
         consolidation that would not constitute a Change of Control under
         clause (ii) above; or

                           (iv)     solely with respect to WEG GP LLC, the
         Continuing Directors of WEG GP LLC cease for any reason to constitute
         all of the board of directors of WEG GP LLC then in office;

         notwithstanding the foregoing, the events described in clauses (i)
         through (iii) of this definition shall not constitute a Change of
         Control of WEG GP LLC if the other Person (or "person" or "group," in
         the case of clause (iii)) referred to in such clauses, immediately
         prior to such transaction, is an Affiliate of Buyer or WEG GP LLC.

                  "Closing" is defined in the recitals to this Agreement.

                  "Closing Date" is defined in the recitals to this Agreement.

                  "Conflicts Committee" is defined in the MLP Agreement.

                  "Continuing Directors" means (1) all individuals constituting
         the board of directors of WEG GP LLC immediately after the Closing and
         (2) any new directors whose nomination for election to the board of
         directors of WEG GP LLC was approved by WEG GP LLC or the board of
         directors of WEG GP LLC, or the nominating committee of such board, at
         a time that Continuing Directors comprised all of such board of
         directors.

                  "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.

                  "Covered Environmental Losses" is defined in Section 4.1.

                  "Environmental Laws" means all federal, state, and local laws,
         statutes, rules, regulations, orders, and ordinances relating to
         protection of health and the environment including, without limitation,
         the federal Comprehensive Environmental Response, Compensation, and
         Liability Act, the Superfund Amendments Reauthorization Act, the
         Resource Conservation and Recovery Act, the Clean Air Act, the Federal
         Water Pollution Control Act, the Toxic Substances Control Act, the Oil
         Pollution Act, the Safe Drinking Water Act, the Hazardous Materials
         Transportation Act, and other environmental conservation and protection
         laws, each as amended through the IPO Date.

                  "Exchange Act" means the Securities Exchange Act of 1934, as
         amended.

                  "G&A Cap Amount" is defined in Section 7.1(a).

                  "General Partner" means WEG GP LLC and its successors as
         general partner of the MLP, unless the context otherwise requires.

Page                                                                           3

<PAGE>

                  "IPO Assets" is defined in Section 4.1.

                  "IPO Date" means February 9, 2001, the date of the closing of
         the initial public offering of common units representing limited
         partner interests in the MLP.

                  "Limited Partner" is defined in the MLP Agreement.

                  "MLP" is defined in the introduction to this Agreement.

                  "MLP Agreement" means the Second Amended and Restated
         Agreement of Limited Partnership of the MLP, dated as of September 27,
         2002, as amended by Amendments Nos. 1 and 2 thereto, each dated as of
         November 15, 2002, as such agreement may be further amended or
         supplemented through the Closing Date, to which reference is hereby
         made for all purposes of this Agreement. No amendment or modification
         to the MLP Agreement subsequent to the Closing Date shall be given
         effect for the purposes of this Agreement unless consented to by each
         of the parties to this Agreement.

                  "OLP" is defined in the introduction to this Agreement.

                  "Old Omnibus Agreement" is defined in the recitals to this
         Agreement.

                  "Partnership Entities" means the General Partner, the MLP, the
         OLP, WPL and any entity controlled by any of the foregoing.

                  "Partnership Group" means the Partnership Entities, with the
         exclusion of the General Partner.

                  "Payment Request" is defined in Section 9.1(a).

                  "Person" means an individual, corporation, partnership, joint
         venture, trust, limited liability company, unincorporated organization
         or any other entity.

                  "Prospectus" means the MLP's final prospectus, dated February
         5, 2001, relating to the initial public offering of common units
         representing limited partner interests in the MLP, as filed with
         Securities and Exchange Commission pursuant to Rule 424(b) under the
         Securities Act of 1933.

                  "Purchase Agreement" is defined in the recitals to this
         Agreement.

                  "Refined Products" means all grades of motor gasoline,
         distillate and aviation fuel.

                  "Restricted Assets" means, (i) with respect to the Williams
         Entities, for purposes of Article II, any assets or any business having
         assets engaged in the activities prohibited by Section 2.1 and (ii)
         with respect to the Buyer Entities, for purposes of Article III, any
         assets or any business having assets engaged in the activities
         prohibited by Section 3.1.

Page                                                                           4

<PAGE>

                  "Services Agreement" means the Services Agreement, dated the
         date hereof, among Williams Petroleum Services, LLC, Williams Alaska
         Pipeline Company, LLC, and WPL.

                  "Transaction" is defined in the recitals to this Agreement.

                  "Transition Services Agreement" means the Transition Services
         Agreement, dated the date hereof, between Buyer and Williams.

                  "Upper Cap Amount" is defined in Section 7.2(c)(i).

                  "Voting Securities" means securities of any class of a Person
         entitling the holders thereof to vote on a regular basis in the
         election of members of the board of directors or other similar
         governing body of such Person; provided, however, that in the case of
         WEG GP LLC, "Voting Securities" shall refer solely to the membership
         interests in WEG GP LLC.

                  "WAP LP" is defined in Section 5.1.

                  "WEG GP LLC" is defined in the recitals to this Agreement.

                  "WES" is defined in the introduction to this Agreement.

                  "Williams" is defined in the introduction to this Agreement.

                  "Williams Entities" means Williams and any entity that
         directly, or indirectly through one or more intermediaries, controls,
         is controlled by or is under common control with Williams, including
         without limitation, WNGL, WES and the Old GP.

                  "Williams Offer" is defined in Section 2.3(a).

                  "Williams Parties" is defined in the recitals to this
         Agreement.

                  "WNGL" is defined in the introduction to this Agreement.

                  "WPL" is defined in the recitals to this Agreement.

                  "WTH LP" is defined in Section 5.2.

                  "2003 Pre-Closing Stub Period" is defined in Section
         7.1(b)(i)(A).

                  "2003 Pre-Closing Cap" is defined in Section 7.1(b)(i)(A).

                  "2003 Post-Closing Stub Period" is defined in Section
         7.1(b)(i)(B).

                  "2003 Post-Closing Cap" is defined in Section 7.1(b)(i)(B).

                  "2003 Post-Closing Upper Cap Amount" is defined in Section
         7.2(c)(ii)(A).

Page                                                                           5

<PAGE>

                  "2004 Stub Period" is defined in Section 7.2(c)(iii)(B).

                  "2004 Stub Period Upper Cap Amount" is defined in Section
         7.2(c)(iii)(B).

                                   ARTICLE II
                    WILLIAMS ENTITIES' BUSINESS OPPORTUNITIES

         2.1      WILLIAMS ENTITIES RESTRICTED ASSETS. During the Applicable
Period, the Williams Entities shall be prohibited from engaging in or acquiring
any business having assets engaged in the following activities:

                  (a)      the transportation, storage or distribution of
ammonia or related products in the United States;

                  (b)      the ownership and operation of facilities for the
terminalling and storage of refined petroleum products in any state in the
United States, except Alaska and Hawaii;

                  (c)      Refined Product transportation (including, without
limitation, through joint tariff arrangements or capacity leases or otherwise)
to a delivery point within a 50-mile radius of a Refined Products delivery point
owned or supplied by a Partnership Entity on the Acquisition Date; and

                  (d)      Refinery grade butane transportation from the Koch
Pine Bend, MN, refinery, Marathon St. Paul, MN refinery, ExxonMobil Joilet
refinery, BP Whiting, IN refinery and CITGO Lemont, IL refinery.

         2.2      PERMITTED EXCEPTIONS. Notwithstanding any provision of Section
2.1 to the contrary, any Williams Entity may own and operate Restricted Assets
under the following circumstances:

                  (a)      The Restricted Asset was owned, leased or operated by
the Williams Entities on the Closing Date;

                  (b)      The value of the Restricted Assets acquired after the
Closing Date in a transaction does not exceed $20 million at the time of the
acquisition, as determined by Williams, in its reasonable sole discretion;

                  (c)      (i) The value of the Restricted Assets acquired after
the Closing Date in a transaction exceeds $20 million at the time of
acquisition, as determined by Williams, in its reasonable sole discretion, and
(ii) the General Partner has elected not to cause a member of the Partnership
Group to pursue such opportunity in accordance with the procedures set forth in
Section 2.3; or

                  (d)      The value of the Restricted Assets acquired after the
Closing Date in a transaction represents less than 30% of the consideration paid
by Williams or another Williams Entity in connection with such transaction, as
determined by Williams, in its reasonable sole discretion.

Page                                                                           6

<PAGE>

         2.3      PROCEDURES. In the event that, pursuant to Section 2.2(c), a
Williams Entity acquires Restricted Assets valued or having an original cost in
excess of $20 million at the time of the acquisition, as determined by Williams,
in its reasonable sole discretion, then not later than six (6) months after the
consummation of the acquisition by such Williams Entity of the Restricted
Assets, such Williams Entity shall notify the General Partner of such purchase
and offer the Partnership Group the opportunity to purchase such Restricted
Assets. As soon as practicable, but in any event, within sixty (60) days after
receipt of such notification, the General Partner shall notify the Williams
Entity that either (i) the General Partner has elected not to cause a member of
the Partnership Group to purchase such Restricted Assets, in which event such
Williams Entity shall be forever free to continue to own or operate such
Restricted Assets, or (ii) the General Partner has elected to cause a member of
the Partnership Group to purchase such Restricted Assets, in which event the
following procedures shall be followed:

                  (a)      Within thirty (30) days of receipt of the notice from
the General Partner that the General Partner has elected to cause a member of
the Partnership Group to purchase the Restricted Assets, Williams shall submit
an offer to the General Partner to sell the Restricted Assets (the "Williams
Offer") to any member of the Partnership Group selected by the General Partner
on the terms and for the consideration stated in the Williams Offer;

                  (b)      Williams and the General Partner shall negotiate
after receipt of such Williams Offer by the General Partner, the terms on which
the Restricted Assets will be sold to a member of the Partnership Group.
Williams shall provide all information concerning the business, operations and
finances of such Restricted Assets as may be reasonably requested by the General
Partner.

                           (i)      If Williams and the General Partner agree on
         such terms within sixty (60) days after receipt by the General Partner
         of the Williams Offer, the General Partner shall cause a member of the
         Partnership Group to purchase the Restricted Assets on such terms as
         soon as commercially practicable after such agreement has been reached;

                           (ii)     If Williams and the General Partner are
         unable to agree on the terms of a sale during the 60-day period after
         receipt by the General Partner of the Williams Offer, Williams and the
         General Partner will engage an independent investment banking firm with
         a national reputation to determine the fair market value of the
         Restricted Assets. In determining the fair market value of the
         Restricted Assets, the investment banking firm will have access to the
         proposed sale and purchase values for the Restricted Assets submitted
         by Williams and the General Partner, respectively. Such investment
         banking firm will determine the value of the Restricted Assets within
         thirty (30) days and furnish Williams and the General Partner its
         opinion of such value. The fees of the investment banking firm's
         appraisal will be split equally between Williams and the MLP. Upon
         receipt of such opinion, the General Partner will have the option, but
         not the obligation to:

                           (iii)

Page                                                                           7

<PAGE>

                                    (A) cause a member of the Partnership Group
                           to purchase the Restricted Assets in accordance with
                           the following process:

                                         (1) if the valuation of the investment
                                    banking firm is in the range between the
                                    proposed sale/purchase values of Williams
                                    and the General Partner, the General Partner
                                    will have the right to cause a member of the
                                    Partnership Group to purchase the Restricted
                                    Assets at the valuation submitted by the
                                    investment banking firm;

                                         (2) if the valuation of the investment
                                    banking firm is less than the proposed
                                    purchase value submitted by the General
                                    Partner, the General Partner will have the
                                    right to cause a member of the Partnership
                                    Group to purchase the Restricted Assets for
                                    the amount submitted by the General Partner;
                                    and

                                         (3) if the valuation of the investment
                                    banking firm is greater than the proposed
                                    sale value submitted by Williams, the
                                    General Partner will have the right to cause
                                    a member of the Partnership Group to
                                    purchase the Restricted Assets for the
                                    amount submitted by Williams; or

                                    (B) decline to purchase such Restricted
                           Assets, in which event the Williams Entity forever
                           will be free to continue to own and operate such
                           Restricted Assets.

         2.4      SCOPE OF PROHIBITION. Williams and any other Williams Entity
shall only be required to offer Restricted Assets to the General Partner for
purchase by a member of the Partnership Group upon the terms and conditions,
including the price to be paid, contained in this Article II. Except as provided
in this Article II, each Williams Entity shall be free to engage in any business
activity whatsoever, including those that may be in direct competition with
Buyer or any Partnership Entity.

                                  ARTICLE III
                     BUYER ENTITIES' BUSINESS OPPORTUNITIES

         3.1      BUYER ENTITIES RESTRICTED ASSETS. During the Applicable
Period, the Buyer Entities shall be prohibited from engaging in or acquiring any
business having assets engaged in the following activities:

                  (a)      the transportation, storage or distribution of
ammonia or related products in the United States;

                  (b)      the ownership and operation of facilities for the
terminalling and storage of refined petroleum products in any state in the
United States, except Alaska and Hawaii; and

                  (c)      Refined Product transportation (including, without
limitation, through joint tariff arrangements or capacity leases or otherwise)
to a delivery point within a 50-mile

Page                                                                           8

<PAGE>

radius of a Refined Products delivery point owned or supplied by a Partnership
Entity on the Acquisition Date.

         3.2      PERMITTED EXCEPTIONS. Notwithstanding any provision of Section
3.1 to the contrary, any Buyer Entity may own and operate Restricted Assets
under the following circumstances:

                  (a)      The Restricted Asset was owned, leased or operated by
the Buyer Entities on the Closing Date;

                  (b)      The Restricted Asset is owned, leased or operated by
the Buyer Entities on behalf of the Partnership Group;

                  (c)      The value of the Restricted Assets acquired after the
Closing Date in a transaction does not exceed $20 million at the time of the
acquisition, as determined by Buyer, in its reasonable sole discretion;

                  (d)      (i) The value of the Restricted Assets acquired after
the Closing Date in a transaction exceeds $20 million at the time of
acquisition, as determined by Buyer, in its reasonable sole discretion, and (ii)
the General Partner (with the approval of the Conflicts Committee) has elected
not to cause a member of the Partnership Group to pursue such opportunity in
accordance with the procedures set forth in Section 3.3; or

                  (e)      The value of the Restricted Assets acquired after the
Closing Date in a transaction represents less than 30% of the consideration paid
by Buyer or another Buyer Entity in connection with such transaction, as
determined by Buyer, in its reasonable sole discretion.

         3.3      PROCEDURE. In the event that, pursuant to Section 3.2(d), a
Buyer Entity acquires Restricted Assets valued or having an original cost in
excess of $20 million at the time of the acquisition, as determined by Buyer, in
its reasonable sole discretion, then not later than six (6) months after the
consummation of the acquisition by such Buyer Entity of the Restricted Assets,
such Buyer Entity shall notify the General Partner of such purchase and offer
the Partnership Group the opportunity to purchase such Restricted Assets. As
soon as practicable, but in any event, within sixty (60) days after receipt of
such notification, the General Partner shall notify the Buyer Entity that either
(i) the General Partner has elected (with the approval of the Conflicts
Committee) not to cause a member of the Partnership Group to purchase such
Restricted Assets, in which event such Buyer Entity shall be forever free to
continue to own or operate such Restricted Assets, or (ii) the General Partner
(with the approval of the Conflicts Committee) has elected to cause a member of
the Partnership Group to purchase such Restricted Assets, in which event the
following procedures shall be followed:

                  (a)      Within thirty (30) days of receipt of the notice from
the General Partner that General Partner has elected to cause a member of the
Partnership Group to purchase the Restricted Assets, the Buyer Entity shall
submit an offer to the General Partner to sell the Restricted Assets (the "Buyer
Offer") to any member of the Partnership Group selected by the General Partner
on the terms and for the consideration stated in the Buyer Offer;

Page                                                                           9

<PAGE>

                  (b)      The Buyer Entity and the General Partner shall
negotiate after receipt of such Buyer Offer by the General Partner, the terms on
which the Restricted Assets will be sold to a member of the Partnership Group.
The Buyer Entity shall provide all information concerning the business,
operations and finances of such Restricted Assets as may be reasonably requested
by the General Partner.

                           (i)      If the Buyer Entity and the General Partner
         agree on such terms within sixty (60) days after receipt by the General
         Partner of the Buyer Offer, a member of the Partnership Group shall
         purchase the Restricted Assets on such terms as soon as commercially
         practicable after such agreement has been reached;

                           (ii)     If the Buyer Entity and the General Partner
         are unable to agree on the terms of a sale during the 60-day period
         after receipt by the General Partner of the Buyer Offer, the Buyer
         Entity and the General Partner will engage an independent investment
         banking firm with a national reputation to determine the fair market
         value of the Restricted Assets. In determining the fair market value of
         the Restricted Assets, the investment banking firm will have access to
         the proposed sale and purchase values for the Restricted Assets
         submitted by the Buyer Entity and the General Partner, respectively.
         Such investment banking firm will determine the value of the Restricted
         Assets within thirty (30) days and furnish the Buyer Entity and the
         General Partner its opinion of such value. The fees of the investment
         banking firm's appraisal will be split equally between the Buyer Entity
         and the MLP. Upon receipt of such opinion, the General Partner will
         have the option, but not the obligation to:

                           (iii)

                                    (A) cause a member of the Partnership Group
                           to purchase the Restricted Assets in accordance with
                           the following process:

                                         (1) if the valuation of the investment
                                    banking firm is in the range between the
                                    proposed sale/purchase values of the Buyer
                                    Entity and the General Partner, a member of
                                    the Partnership Group will have the right to
                                    purchase the Restricted Assets at the
                                    valuation submitted by the investment
                                    banking firm;

                                         (2) if the valuation of the investment
                                    banking firm is less than the proposed
                                    purchase value submitted by the General
                                    Partner, a member of the Partnership Group
                                    will have the right to purchase the
                                    Restricted Assets for the amount submitted
                                    by the General Partner; and

                                         (3) if the valuation of the investment
                                    banking firm is greater than the proposed
                                    sale value submitted by the Buyer Entity, a
                                    member of the Partnership Group will have
                                    the right to purchase the Restricted Assets
                                    for the amount submitted by the Buyer
                                    Entity; or

Page                                                                          10

<PAGE>

                                    (B) decline to purchase such Restricted
                           Assets, in which event the Buyer Entity forever will
                           be free to continue to own and operate such
                           Restricted Assets.

         3.4      SCOPE OF PROHIBITION. Except as provided in this Article III,
each Buyer Entity shall be free to engage in any business activity whatsoever,
including those that may be in direct competition with any member of the
Partnership Group.

                                   ARTICLE IV
                          ENVIRONMENTAL INDEMNIFICATION

         4.1      WES INDEMNIFICATION FOR COVERED ENVIRONMENTAL LOSSES. Williams
and WES, jointly and severally, shall indemnify, defend and hold harmless the
Partnership Entities from and against any Covered Environmental Losses relating
to the assets of the Partnership Entities described in the Prospectus that arose
prior to the IPO Date (the "IPO Assets") that become known by February 9, 2004
and that exceed all amounts recovered or recoverable by any Partnership Entity
under contractual indemnities from third Persons or under any applicable
insurance policies. "Covered Environmental Losses" mean those non-contingent
environmental losses, costs, damages and expenses suffered or incurred by the
Partnership Entities arising from correction of violations of, or performance of
remediation required by, Environmental Laws in effect at the IPO Date due to
events and conditions associated with the operation of the IPO Assets and
occurring before the IPO Date.

         4.2      LIMITATIONS. Williams and WES shall have no indemnification
obligation under Section 4.1 for claims made after February 9, 2004. The
aggregate liability of Williams and WES in respect of all Covered Environmental
Losses under Section 4.1 shall not exceed $13.3 million, representing $15
million less amounts previously paid by Williams or WES to the Partnership
Entities pursuant to Section 3.1 of the Old Omnibus Agreement.

                                   ARTICLE V
                          RIGHT-OF-WAY INDEMNIFICATION

         5.1      WNGL RIGHT-OF-WAY INDEMNIFICATION. Williams and WNGL, jointly
and severally, shall indemnify, defend and hold harmless the Partnership
Entities and their successors or assigns until February 9, 2016 from and against
any losses, costs, damages, expenses and fees suffered or incurred by any of the
Partnership Entities or their successors or assigns as a result of (a) the
failure of Williams Ammonia Pipeline, L.P., a Delaware limited partnership ("WAP
LP"), or its successors or assigns to be the owner of such valid and
indefeasible easement rights in and to the easements and rights of way in which
the ammonia pipeline was located as of the IPO Date and as are necessary to
enable WAP LP and its successors and assigns to continue to own and operate the
ammonia pipeline in the manner that it was owned and operated as of the IPO
Date; and (b) the failure of WAP LP or its successors and assigns to have the
consents and permits necessary to allow such pipeline to cross the roads,
waterways, railroads and other areas upon which the ammonia pipeline was located
as of the IPO Date.

         5.2      WES RIGHT-OF-WAY INDEMNIFICATION. Williams and WES, jointly
and severally, shall indemnify, defend and hold harmless, the Partnership
Entities and their successors and

Page                                                                          11

<PAGE>

assigns, until February 9, 2016, from and against any losses, costs, damages,
expenses and fees suffered or incurred by any of the Partnership Entities or
their successors or assigns as a result of (a) the failure of Williams Terminals
Holdings, L.P. , a Delaware limited partnership ("WTH LP"), or its successors
and assigns to be the owner of valid and indefeasible easement rights in and to
the easements and rights of way in which the pipelines that are associated with
the marine terminal facilities at Galena Park, Texas, Corpus Christi, Texas and
Marrero, Louisiana were located as of the IPO Date and that are necessary to
enable WTH LP and its successors and assigns to continue to own and operate the
pipelines in all material respects in the manner that such pipelines were owned
and operated prior to the IPO Date; and (b) the failure of WTH LP or its
successors and assigns to have the consents and permits necessary to allow such
pipelines to cross roads, waterways, railroads and other areas upon which such
pipelines were located as of the IPO Date.

                                   ARTICLE VI
            ENVIRONMENTAL AND RIGHT-OF-WAY INDEMNIFICATION PROCEDURES

         6.1      Buyer agrees that within a reasonable period of time after
any Partnership Entity becomes aware of facts giving rise to a claim for
indemnification pursuant to Sections 4.1, 5.1 or 5.2, Buyer will use its
reasonable best efforts to cause such Partnership Entity to provide notice
thereof in writing to Williams, specifying the nature of and specific basis for
such claim.

                  (a)      Except as provided in this Section 6.1(b), Williams
shall have the right to control all aspects of the defense of (and any
counterclaims with respect to) any claims brought against the Partnership
Entities that are covered by the indemnification set forth in Sections 4.1, 5.1
or 5.2, including, without limitation, the selection of counsel, determination
of whether to appeal any decision of any court and the settling of any such
matter or any issues relating thereto; provided, however, that no such
settlement shall be entered into without the consent of the Partnership Entities
unless it includes a full and unconditional release of the Partnership Entities
from all liability with respect to such matter or issues, as the case may be,
the sole relief provided is monetary damages that are paid in full by the
Williams Parties, and there is no admission or statement of fault or culpability
on the part of any Partnership Entity.

                  (b)      Buyer agrees to use its reasonable best efforts to
cause the Partnership Entities, at their own cost and expense, to cooperate
fully with Williams with respect to all aspects of the defense of any claims
covered by the indemnification set forth in Sections 4.1, 5.1 or 5.2, including,
without limitation, the prompt furnishing to Williams of any correspondence or
other notice relating thereto that the Partnership Entities may receive,
permitting the names of the Partnership Entities to be utilized in connection
with such defense, the making available to Williams of any files, records or
other information of the Partnership Entities that Williams reasonably considers
relevant to such defense and the making reasonably available to Williams, during
normal business hours, of any employees of the Partnership Entities; provided,
however, that in connection therewith Williams agrees to use reasonable best
efforts to minimize the impact thereof on the operations of such Partnership
Entities. In no event shall the obligation of Buyer to use its reasonable best
efforts to cause the Partnership Entities to cooperate with Williams as set
forth in the immediately preceding sentence be construed as imposing upon the
Buyer or the Partnership Entities an obligation to hire and pay for counsel in
connection with the defense of any claims covered by the indemnification set
forth in this Article VI, it being agreed

Page                                                                          12

<PAGE>

that the Williams Parties, jointly and severally, shall pay the fees and
expenses of such counsel; provided, further, that Buyer or the Partnership
Entities may hire and pay for separate counsel in connection with any such
defense, at the Buyers or the MLP's own option, cost and expense, as the case
may be; provided, further, that the Williams Parties, jointly and severally,
shall pay the fees and expenses of separate counsel for the Buyer or the
Partnership Entities if (i) the Williams Parties have agreed to pay such fees
and expenses or (ii) counsel for the Williams Parties reasonably determines that
representation of both the Williams Parties, on the one hand, and the
Partnership Entities, on the other hand, by the same counsel would create a
conflict of interest. Williams agrees to keep any counsel hired by the
Partnership Entities reasonably informed as to the status of any such defense,
but Williams shall have the right to retain sole control over such defense
except as provided above.

                  (c)      In determining the amount of any loss, cost, damage
or expense for which any of the Partnership Entities are to be indemnified under
Sections 4.1, 5.1 or 5.2, the gross amount of the indemnification will be
reduced by (i) any insurance proceeds realized or to be realized by the
Partnership Entities, and such correlative insurance benefit shall be net of any
incremental insurance premium that becomes due and payable by the Partnership
Entities as a result of such claim and (ii) all amounts recovered or recoverable
by any Partnership Entity under contractual indemnities from third Persons as
described in Section 4.1.

                                  ARTICLE VII
                       GENERAL AND ADMINISTRATIVE EXPENSES

         7.1      G&A CAP AMOUNT.

                  (a)      Subject to Section 7.2, the amount of general and
administrative expenses reimbursed by the Partnership Group to the Buyer
Entities (or, in the case of Section 7.1(b)(i)(A) below, to the Williams
Entities) for any MLP fiscal year shall not exceed the amounts calculated
pursuant to Section 7.1(b) (for any MLP fiscal year, the "G&A Cap Amount").

                  (b)      2003 Fiscal Year. For the MLP fiscal year ending on
December 31, 2003, the G&A Cap Amount shall be calculated as follows:

                                    (A) For the period beginning on January 1,
                           2003 and ending on the day immediately preceding the
                           Closing Date (the "2003 Pre-Closing Stub Period"),
                           the amount of general and administrative expenses
                           reimbursed by the Partnership Group to the Williams
                           Entities shall not exceed $37.9 million times a
                           fraction, (X) the numerator of which is the number of
                           successive whole months beginning with January 2003
                           and ending with the month in which the Closing occurs
                           and (Y) the denominator of which is twelve (12) (the
                           "2003 Pre-Closing Cap"). To the extent that the
                           Partnership Group reimbursed the Williams Entities
                           for general and administrative expenses incurred in
                           2003 in excess of the 2003 Pre-Closing Cap, the
                           Williams Parties shall reimburse the MLP for any such
                           excess amounts and shall make such payment no later
                           than thirty (30) days following the Closing Date. To
                           the extent that the Williams Entities paid
                           unreimbursed general and administrative expenses up
                           to the 2003 Pre-

Page                                                                          13

<PAGE>

                           Closing Cap, Buyer shall use commercially reasonable
                           efforts to cause the MLP to, make payment to the
                           appropriate Williams Entity of such unreimbursed
                           amount no later than thirty (30) days following the
                           Closing Date.

                                    (B) For the period beginning with the
                           Closing Date and ending on December 31, 2003 (the
                           "2003 Post-Closing Stub Period"), the amount of
                           general and administrative expenses reimbursed by the
                           Partnership Group to the Buyer Entities shall not
                           exceed the sum of (1) the product of $37.9 million
                           (as may be adjusted pursuant to Section 7.1(b)(iii))
                           times a fraction, (X) the numerator of which is the
                           number of successive whole months beginning with the
                           month following the month in which the Closing occurs
                           and ending with December 2003 and (Y) the denominator
                           of which is twelve (12) (the "2003 Post-Closing
                           Cap"), plus (2) the amount of general and
                           administrative expenses incurred by or on behalf of
                           the Partnership Group in excess of the 2003
                           Post-Closing Upper Cap Amount less any amounts duly
                           reimbursed by the Williams Parties to the Buyer
                           Entities pursuant to Section 7.2(c)(iii)(A).

                           (ii)     Succeeding Fiscal Years. For each succeeding
         MLP fiscal year beginning with the MLP fiscal year ending December 31,
         2004, the G&A Cap Amount shall be calculated as follows:

                                    (A) The G&A Cap Amount from the preceding
                           fiscal year (as may be adjusted pursuant to Section
                           7.1(b)(iii)) shall be increased by the greater of (A)
                           7% per year and (B) the percentage increase in the
                           Consumer Price Index -- All Urban Consumers, U.S.
                           City Average, Not Seasonally Adjusted.

                                    (B) For purposes of calculating the initial
                           increase in the G&A Cap Amount for the MLP fiscal
                           year ending on December 31, 2004, the G&A Cap Amount
                           for the 2003 fiscal year shall be $37.9 million (as
                           may be adjusted pursuant to Section 7.1(b)(iii) for
                           acquisitions, construction, capital improvements,
                           replacements or expansions occurring in 2003).

                           (iii)    Adjustment for Acquisitions and Other
         Events. If, after the Closing Date, the Partnership Group (A) makes an
         acquisition, (B) constructs or causes to be constructed any assets to
         be owned, leased or operated by any member of the Partnership Group or
         (C) makes or causes to be made any capital improvements, replacements
         or expansions of any assets owned, leased or operated by any member of
         the Partnership Group, the amount of general and administrative
         expenses reimbursed by the Partnership Group to the Buyer Entities will
         be increased by the Buyer's good faith reasonable estimate of the
         additional amount of annual general and administrative expenses to be
         incurred by or on behalf of the Partnership Group with respect to such
         acquisition, construction, capital improvement, replacement or
         expansion. The pro rata portion of the additional general and
         administrative expenses shall be added to the G&A Cap Amount and the
         Upper Cap Amount in the year in which such acquisition, construction,
         capital

Page                                                                          14

<PAGE>

         improvement, replacement or expansion occurs for the portion of the
         year occurring thereafter and the full amount of such general and
         administrative expenses shall be added to the G&A Cap Amount and the
         Upper Cap Amount thereafter.

         7.2      CERTAIN LIMITATIONS. The provisions of Section 7.1 shall be
subject to the following limitations:

                  (a)      Expiration of G&A Cap. The amount of general and
administrative expenses reimbursed by the Partnership Group to the Buyer
Entities shall not be limited under this Agreement with respect to any fiscal
year ending after December 31, 2010.

                  (b)      Certain Expenses Not Included. General and
administrative expenses with respect to the following matters shall be excluded
in determining limitations herein on the amount of general and administrative
expenses that are required to be reimbursed by the Partnership Group or the
Williams Parties to the Buyer Entities:

                           (i)      expenses associated with equity-based
         incentive compensation plans;

                           (ii)     general and administrative expenses incurred
         by Buyer that are covered under Section 4.15 to the Purchase Agreement,
         regardless of whether in excess of the Expense Limit (as defined in
         Section 4.15 to the Purchase Agreement), it being understood that to
         the extent the Williams Parties reimburse Buyer for general and
         administrative expenses in excess of the Expense Limit, Buyer shall
         promptly pay any such reimbursements to the MLP by wire transfer of
         immediately available funds to an account or accounts designated in
         writing by the MLP; or

                           (iii)    general and administrative expenses incurred
         in connection with providing Services (as defined by the Services
         Agreement) under the Services Agreement.

                  (c)      Upper Cap Amount.

                           (i)      Notwithstanding the limitations in Section
         7.1 on the Partnership Group's reimbursement obligations for general
         and administrative expenses in excess of the G&A Cap Amount, the
         Partnership Group (or in the case of Section 7.2(c)(iii), the Williams
         Parties) shall be required to reimburse the Buyer Entities for general
         and administrative expenses incurred on behalf of the Partnership Group
         in any MLP fiscal year in excess of the Upper Cap Amount as calculated
         below (the "Upper Cap Amount").

                           (ii)     The Upper Cap Amount shall be calculated as
         follows:

                                    (A) For the 2003 Post-Closing Stub Period,
                           the Upper Cap Amount shall be equal to the product of
                           $49.3 million (as may be adjusted pursuant to Section
                           7.1(b)(iii)) times a fraction, (X) the numerator of
                           which is the number of successive whole months
                           beginning with the month following the month in which
                           the Closing occurs and ending with month of

Page                                                                          15

<PAGE>

                           December 2003 and (Y) the denominator of which is
                           twelve (12) (the "2003 Post-Closing Upper Cap
                           Amount").

                                    (B) For each succeeding MLP fiscal year
                           beginning with the MLP fiscal year ending December
                           31, 2004, the Upper Cap Amount shall be calculated as
                           follows:

                                         (1) The Upper Cap Amount from the
                                    preceding fiscal year (as may be adjusted
                                    pursuant to Section 7.1(b)(iii)) shall be
                                    increased annually by the lesser of (A) 2.5%
                                    per year and (B) the percentage increase in
                                    the Consumer Price Index -- All Urban
                                    Consumers, U.S. City Average, Not Seasonally
                                    Adjusted.

                                         (2) For purposes of calculating the
                                    initial increase in the Upper Cap Amount for
                                    the MLP fiscal year ending on December 31,
                                    2004, the Upper Cap Amount for the 2003
                                    fiscal year shall be $49.3 million (as may
                                    be adjusted pursuant to Section 7.1(b)(iii)
                                    for acquisitions, construction, capital
                                    improvements, replacements and expansions
                                    occurring in 2003).

                           (iii)    For the twelve months immediately following
         the Closing Date, the Williams Parties shall be required to reimburse
         the Buyer Entities for any and all general and administrative expenses
         incurred by or on behalf of the Partnership Group in excess of the
         Upper Cap Amount, as follows:

                                    (A) If, for the 2003 Post-Closing Stub
                           Period, the general and administrative expenses
                           incurred by or on behalf of the Partnership Group are
                           in an amount in excess of 2003 Post-Closing Upper Cap
                           Amount, the Williams Parties, jointly and severally,
                           shall be required to reimburse the Buyer Entities in
                           full for the amount of such excess and shall make
                           such payment no later than thirty (30) days after the
                           last day of the 2003 Post-Closing Stub Period by wire
                           transfer of immediately available funds to an account
                           or accounts designated in writing by the Buyer
                           Entities.

                                    (B) If, for the period beginning on January
                           1, 2004 and ending on the last day of the month in
                           which the first anniversary of the Closing Date
                           occurs (the "2004 Stub Period"), the general and
                           administrative expenses incurred by or on behalf of
                           the Partnership Group exceed the Upper Cap Amount for
                           the MLP fiscal year ended December 31, 2004
                           multiplied by a fraction, (X) the numerator of which
                           is the number of successive months beginning with
                           January 2004 and ending with the month in which the
                           2004 Stub Period ends and (Y) the denominator of
                           which is twelve (12) (the "2004 Stub Period Upper Cap
                           Amount"), the Williams Parties, jointly and
                           severally, shall be required to reimburse the Buyer
                           Entities in full for the amount of such excess and
                           shall make such payment no later than thirty (30)
                           days after the last day of the 2004 Stub Period by
                           wire transfer of immediately available funds to an
                           account or accounts designated in

Page                                                                          16

<PAGE>

                           writing by the Buyer Entities. If Buyer becomes
                           obligated to pay the 5% premium for transition
                           services pursuant to the final proviso in Section
                           4(a) of the Transition Services Agreement, then for
                           purposes of the immediately preceding sentence, the
                           2004 Stub Period Upper Cap Amount shall be increased
                           by the portion of such premium constituting general
                           and administrative expenses of the Partnership Group
                           attributable to the 2004 Stub Period.

                                    (C) Buyer shall, and shall cause each of the
                           other Buyer Entities to, use good faith efforts to
                           minimize the amount of general and administrative
                           expenses incurred by any of the Buyer Entities and
                           for which the Williams Parties would be required to
                           reimburse the Buyer Entities under this Section
                           7.2(c)(iii).

                                    (D) Notwithstanding any other provision of
                           this Article VII, the Williams Entities will not have
                           any obligations to reimburse the Buyer Entities for
                           general and administrative expenses incurred on
                           behalf of the Partnership Group or otherwise, except
                           as specifically provided in this Section 7.2(c)(iii).

                           (iv)     Except as provided in Section 7.2(c)(iii),
         the Partnership Group shall be required to reimburse the Buyer Entities
         for any and all general and administrative expenses in excess of the
         Upper Cap Amount incurred by or on behalf of the Partnership Group in
         any MLP fiscal year.

         7.3      NO AFFECT ON SECTION 7.4 OF THE MLP AGREEMENT. Nothing in this
Article VII is intended or shall be construed to affect or modify the terms and
conditions of Section 7.4 of the MLP Agreement.

                                  ARTICLE VIII
                              CAPITAL EXPENDITURES

         8.1      WILLIAMS REIMBURSEMENT OF PARTNERSHIP GROUP MAINTENANCE
CAPITAL EXPENDITURES. The Williams Entities will reimburse the Partnership Group
in each of the MLP's 2003 and 2004 fiscal years for any reasonable and customary
maintenance capital expenditures made by the Partnership Group, in accordance
with past practices, to maintain the assets of WPL, in either year, in excess of
$19 million; provided, that the Williams Entities shall not be required to
reimburse the Partnership Group in excess of an aggregate amount of $15 million
under this Section 8.1.

                                   ARTICLE IX
                                  MISCELLANEOUS

         9.1      PAYMENTS; DISPUTED AMOUNTS; AUDIT RIGHTS.

                  (a)      Except as otherwise provided herein, any payments to
be made by the Williams Entities to Buyer or the Partnership Entities under this
Agreement shall be made by the Williams Entities within sixty (60) days of
receipt of a written request for such payment from

Page                                                                          17

<PAGE>

Buyer (which request shall contain a description in reasonable detail of the
individual costs and expenses that comprise the aggregate amount of the payment
requested) (a "Payment Request"). In the event of a good faith dispute as to the
amount of such payment, the applicable Williams Entity shall give written notice
of such dispute on or before the due date with respect to all or any portion of
the Payment Request, with the particulars of such dispute. Upon receipt of such
notice, Buyer shall, or shall use its reasonable best efforts to cause the
Partnership Entities to, furnish to the applicable Williams Entity additional
supporting documentation to reasonably substantiate the amount of the Payment
Request. Upon delivery of such additional documentation, the applicable Williams
Entity and the Buyer Entities shall cooperate and use their reasonable best
efforts to resolve such dispute. If they are unable to resolve their dispute
within twenty (20) business days of the delivery of such additional supporting
documentation to the applicable Williams Entity, then the dispute shall be
referred for resolution by a firm of independent accountants of nationally
recognized standing reasonably satisfactory to each of Buyer and the applicable
Williams Entity (the "Accounting Referee"), which shall determine the disputed
amounts within thirty (30) days of the referral of such dispute to such
Accounting Referee. The determination of the Accounting Referee shall not
require the applicable Williams Entity to pay more than the amount in dispute
nor require Buyer or any Partnership Entity to return any amount previously paid
by the applicable Williams Entity. The fees and expenses of the Accounting
Referee shall be borne equally by the applicable Williams Entity, on the one
hand, and Buyer or a member of the Partnership Entities, on the other hand. The
determination of the Accounting Referee shall be finally binding. If any dispute
is resolved in favor of Buyer or any Partnership Entity, the applicable Williams
Entity shall make payment to Buyer or the applicable Partnership Entity within
thirty (30) days of resolution of the dispute. Notwithstanding the foregoing, in
no event shall the Williams Entities be entitled to withhold any amounts other
than those portions of the applicable payment that are in dispute.

                  (b)      Williams shall have the right, at any time within six
(6) months after the date of any payment by Williams to Buyer or the Partnership
Entities pursuant to a Payment Request to audit those books and records of Buyer
and/or any Partnership Entity that incurred costs or expenses attributable to
such Payment Request or which books and records relate thereto, to verify the
amount reflected on such Payment Request. Any such audit shall be conducted
during normal business hours by Williams or its designated auditor after ten
(10) days prior written notice to Buyer, at Williams' sole cost and expense, in
the offices of Buyer and the relevant Partnership Entities or such other
location as may be mutually agreed. Buyer shall cooperate and shall use its
reasonable best efforts to cause any relevant Partnership Entity to cooperate
with and provide reasonable assistance to Williams and/or its auditor in
connection with the performance of any such audit. Williams shall assert any
claim for refund of amounts reimbursed to Buyer or the Partnership Entities
under the audited Payment Request within sixty (60) days after the completion of
the audit. Buyer shall have sixty (60) days from receipt of Williams' claim for
refund to respond. If Buyer does not dispute Williams' refund claim, Buyer or
the applicable Partnership Entity shall pay such refund within such 60-day
period. Should Buyer dispute the claim and refuse to pay any refund claim by
Williams resulting from the exercise of Williams' audit rights, the parties will
refer the dispute to an Accounting Referee in the manner described in Section
9.1(a) above.

         9.2      THIRD-PARTY BENEFICIARY; ASSIGNMENT; ENFORCEMENT.

Page                                                                          18

<PAGE>

                  (a)      Each of Buyer and the Williams Parties specifically
intends that each entity comprising the Partnership Entities or the Partnership
Group, as applicable, shall be entitled to assert rights and remedies hereunder
as third-party beneficiaries hereto with respect to those provisions of this
Agreement affording a right, benefit or privilege to any such entity.
Notwithstanding anything else in this Agreement, pursuant to Section 4.25 of the
Purchase Agreement, no provision of this Agreement with respect to which any of
the entities comprising the Partnership Entities or the Partnership Group, as
applicable, is a third-party beneficiary shall be amended, modified, waived or
terminated by a party hereto without the express prior written approval of the
MLP, and if the General Partner, in its capacity as general partner of the MLP,
determines in its reasonable discretion that such an amendment, modification,
waiver or termination is reasonably likely to adversely affect the holders of
common units representing limited partner interests in the MLP, such amendment,
modification, waiver of termination must also be approved by Special Approval
(as such term is defined in the MLP Agreement).

                  (b)      No party shall have the right to assign its rights or
obligations under this Agreement without the consent of the other parties
hereto.

                  (c)      The parties hereto agree that irreparable damage
would occur if any of the provisions of this Agreement were not performed in
accordance with their specific terms or were otherwise breached. It is
accordingly agreed that the parties shall be entitled to an injunction or
injunctions to prevent breaches of this Agreement and to enforce specifically
the terms and provisions hereof, this being in addition to any other remedy to
which they are entitled at law or in equity. The third-party beneficiaries to
whom certain rights and remedies under this Agreement extend as contemplated
under Section 9.2(a) above shall also be entitled to enforce this Agreement in
the manner provided in this Section 9.2(c). Notwithstanding anything else in
this Agreement, the provisions of this Agreement are enforceable solely by the
parties to this Agreement and the third-party beneficiaries identified in
Section 9.2(a) above, and no Limited Partner (other than Buyer), Assignee or
other Person (other than a permitted assignee under Section 9.2(b)) may enforce
any provision of this Agreement or compel any party to this Agreement to comply
with the terms of this Agreement.

         9.3      CHOICE OF LAW; SUBMISSION TO JURISDICTION. This Agreement
shall be governed and construed in accordance with the internal and substantive
laws of New York, and without regard to any conflicts of laws concepts that
would apply the substantive law of some other jurisdiction. Each party hereby
submits to the jurisdiction of the state and federal courts in the State of New
York and to venue in the Borough of Manhattan in the City of New York, New York.

         9.4      NOTICE. All notices or requests or consents provided for or
permitted to be given pursuant to this Agreement must be in writing and must be
given by depositing same in the United States mail, addressed to the Person to
be notified, postpaid, and registered or certified with return receipt requested
or by delivering such notice in person or by telecopier or telegram to such
party. Notice given by personal delivery or mail shall be effective upon actual
receipt. Notice given by telegram or telecopier shall be effective upon actual
receipt if received during the recipient's normal business hours, or at the
beginning of the recipient's next business day after receipt if not received
during the recipient's normal business hours. All notices to be sent to a party
pursuant to this Agreement shall be sent to or made at the address set forth
below such

Page                                                                          19

<PAGE>

party's signature to this Agreement, or at such other address as such party may
stipulate to the other parties in the manner provided in this Section 9.4.

         9.5      ENTIRE AGREEMENT. This Agreement, together with the provisions
of the Purchase Agreement relating hereto, represent the entire agreement and
understanding of the parties hereto and thereto with reference to the
transactions set forth herein. This Agreement, together with the provisions of
the Purchase Agreement relating hereto, supercede all prior negotiations,
discussions, correspondence, communications, understandings and agreements
between the parties relating to the transactions set forth herein and all prior
drafts hereof (including Exhibit 1.2(a)(iv)(1) to the Purchase Agreement). No
prior drafts hereof and no words or phrases from any such prior drafts shall be
admissible into evidence in any action or suit involving this Agreement.

         9.6      TERMINATION OF CERTAIN OBLIGATIONS UPON CHANGE OF CONTROL

                  (a)      Upon a Change of Control of Williams, the obligations
of the Williams Entities under Article II shall terminate.

                  (b)      Upon a Change of Control of Buyer or WEG GP LLC, the
obligations of the Buyer Entities under Article III shall terminate.

                  (c)      Upon a Change of Control of Buyer or WEG GP LLC, the
obligations of the Williams Parties under Article V shall terminate as of the
later to occur of (A) the date of such Change of Control and (B) the expiration
of all of the obligations of WES pursuant to Sections 10.1(a) (with respect to
breaches of environmental representations, warranties, agreements or covenants),
10.1(b) and 10.1(c) of that certain Contribution Agreement dated as of April 11,
2002 by and among WES, the Old GP and the MLP and the expiration of all of the
corresponding obligations of Williams pursuant to that certain Corporate
Guarantee in favor of the General Partner, dated as of March 14, 2003, of
Williams.

                  (d)      Upon a Change of Control of Buyer or WEG GP LLC,
Article VII and the limitations therein on the amount of general and
administrative expenses for which the Partnership Group is required to reimburse
the Buyer Entities shall terminate (including the provisions therein relating to
the reimbursement obligations of the Williams Parties in favor of the Buyer
Entities).

         9.7      EFFECT OF WAIVER OR CONSENT. No waiver of any provision of
this Agreement shall be effective unless set forth in writing by the party to be
bound thereby. Except as otherwise expressly provided therein, no waiver or
consent, express or implied, by any party to or of any breach or default by any
Person in the performance by such Person of its obligations hereunder shall be
deemed or construed to be a consent or waiver to or of any other breach or
default in the performance by such Person of the same or any other obligations
of such Person hereunder. Failure on the part of a party to complain of any act
of any Person or to declare any Person in default, irrespective of how long such
failure continues, shall not constitute a waiver by such party of its rights
hereunder until the applicable statute of limitations period has run.

         9.8      AMENDMENT OR MODIFICATION. Subject to the second sentence of
Section 9.2(a), this Agreement may be amended or modified from time to time only
by the written agreement of

Page                                                                          20

<PAGE>

all the parties hereto. Each such instrument shall be reduced to writing and
shall be designated on its face an "Amendment" or an "Addendum" to this
Agreement.

         9.9      COUNTERPARTS. This Agreement may be executed in any number of
counterparts with the same effect as if all signatory parties had signed the
same document. All counterparts shall be construed together and shall constitute
one and the same instrument.

         9.10     SEVERABILITY. If any provision of this Agreement or the
application thereof to any Person or circumstance shall be held invalid or
unenforceable to any extent, the remainder of this Agreement and the application
of such provision to other Persons or circumstances shall not be affected
thereby and shall be enforced to the greatest extent permitted by law.

         9.11     GENDER, PARTS, ARTICLES AND SECTIONS. Whenever the context
requires, the gender of all words used in this Agreement shall include the
masculine, feminine and neuter, and the number of all words shall include the
singular and plural. Unless otherwise provided, all references to Article
numbers and Section numbers refer to Articles and Sections of this Agreement.

         9.12     FURTHER ASSURANCES. In connection with this Agreement and all
transactions contemplated by this Agreement, each signatory party hereto agrees
to execute and deliver such additional documents and instruments and to perform
such additional acts as may be necessary or appropriate to effectuate, carry out
and perform all of the terms, provisions and conditions of this Agreement and
all such transactions.

         9.13     WITHHOLDING OR GRANTING OF CONSENT. Except as otherwise
expressly provided herein, each party may, with respect to any consent or
approval that it is entitled to grant pursuant to this Agreement, grant or
withhold such consent or approval in its sole and uncontrolled discretion, with
or without cause, and subject to such conditions as it shall deem appropriate.

         9.14     U.S. CURRENCY. All sums and amounts payable to or to be
payable pursuant to the provisions of this Agreement shall be payable in coin or
currency of the United States of America that, at the time of payment, is legal
tender for the payment of public and private debts in the United States of
America.

         9.15     LAWS AND REGULATION. Notwithstanding any provision of this
Agreement to the contrary, no party to this Agreement shall be required to take
any act, or fail to take any act, under this Agreement if the effect thereof
would be to cause such party to be in violation of any applicable law, statute,
rule or regulation.

         9.16     WAIVER OF RIGHT OF FIRST REFUSAL. The Williams Parties hereby
agree that, effective as of the date hereof, any and all rights, benefits and
privileges of WES and any other Williams Entity under Section 11.10 of that
certain Contribution Agreement dated as of April 11, 2002 by and among WES, the
Old GP and the MLP are hereby forever terminated in all respects, and WES, WNGL
and Williams hereby waive any and all rights, benefits and privileges of WES and
any other Williams Entity under such section of such agreement.

Page                                                                          21

<PAGE>

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

                             THE BUYER

                             WEG ACQUISITIONS, L.P.

                             By: WEG Acquisition Management, LLC
                             its General Partner

                             By: /s/ Justin S. Huscher
                                 ---------------------------
                                 Name:  Justin S. Huscher
                                 Title: Authorized Signatory

                             By: /s/ Pierre F. Lapeyre, Jr.
                                 ------------------------------
                                 Name:  Pierre F. Lapeyre, Jr.
                                 Title: Authorized Signatory

                             Address for Notice:

                             One Williams Center
                             Tulsa, Oklahoma 74172
                             Facsimile: 918-573-6928
                             Attention: Mr. Lonny Townsend

                             THE WILLIAMS PARTIES

                             WILLIAMS ENERGY SERVICES, LLC

                             By: /s/ Phillip D Wright
                                 ---------------------------
                                 Name:  Phillip D. Wright
                                 Title: Authorized Signatory

                             WILLIAMS NATURAL GAS LIQUIDS, INC.

                             By: /s/ Phillip D Wright
                                 ---------------------------
                                 Name:  Phillip D. Wright
                                 Title: Authorized Signatory

                             THE WILLIAMS COMPANIES, INC.

                             By: /s/ Phillip D Wright
                                 ---------------------------
                                 Name: Phillip D. Wright

Page                                                                          22

<PAGE>

                                 Title: Authorized Signatory

                             Address for Notice to Each of the Williams Parties:

                             One Williams Center
                             Tulsa, Oklahoma 74172
                             Facsimile: 918-573-4503
                             Attention: Mr. Tony Gehres

Page                                                                          23

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00054-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00054-of-00352.parquet"}]]