Document:

New Omnibus Agreement

 EXHIBIT 10.3 
  
 NEW OMNIBUS AGREEMENT 
  
 among 
  
 WEG Acquisitions, L.P., 
  
 Williams Energy Services, LLC, 
  
 Williams Natural Gas Liquids, Inc. 
  
 and 
  
 The Williams Companies, Inc. 
  
 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”). 
  
 RECITALS: 
  
 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. 
  

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 (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 
  

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 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. 
  

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 “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. 
  

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 “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). 
  

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 “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. 
  

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 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: 
  

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

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 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; 
  

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 (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 
  

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 (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 
  

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 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 (a) 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. 
  
 (b) 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. 
  
 (c)
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 
  

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 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. 
  
 (d) 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) (i) 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- 
  

 13 

 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 
  

 14 

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

 15 

 (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 
  

 16 

 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 
  

 17 

 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. 
  

 18 

 9.2 Third-Party Beneficiary; Assignment; Enforcement. 
  
 (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 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. 
  

 19 

 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 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. 
  

 20 

 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. 
  

 21 

 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

  

 22 

			
	THE WILLIAMS COMPANIES, INC.
		
	By:	 	 /s/ Phillip D. Wright

	Name:	 	Phillip D. Wright
	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 
  

 23Purchase Agreement

  EXHIBIT 10.5 
  Execution Copy 
    
 PURCHASE AGREEMENT 
  
 by and among

  
 WILLIAMS ENERGY SERVICES, LLC, 
  
 WILLIAMS NATURAL GAS LIQUIDS, INC. and 
  
 WILLIAMS GP LLC 
  
 collectively, as Selling Parties, 
  
 and 
  
 WEG ACQUISITIONS, L.P. 
 a Delaware limited partnership, 
 as Buyer, 
  
 for the purchase and sale of 
  
 (i) all the membership interests of 
  
 WEG GP LLC 
 a Delaware limited liability company, 
  
 (ii) all of the Common Units and Subordinated Units of 
  
 WILLIAMS ENERGY PARTNERS, L.P. 
 a Delaware limited partnership 

 
 owned by Williams Energy Services, LLC and Williams Natural Gas Liquids,
Inc. 
  
 and 
  
 (iii) all the Class B Common Units of 
  
 WILLIAMS ENERGY PARTNERS, L.P. 
 a Delaware limited partnership 
  
 dated as of April 18, 2003 

 TABLE OF CONTENTS 
  

					
	 	 	 	  	Page

	 ARTICLE I. SALE AND PURCHASE
	  	2
			
	 	 	 SECTION 1.1. Agreement to Sell and to Purchase.
	  	2
	 	 	 SECTION 1.2. Deliveries at Closing.
	  	3
	 	 	 SECTION 1.3. Purchase Price
	  	5
		
	 ARTICLE II. REPRESENTATIONS AND WARRANTIES OF SELLING PARTIES
	  	7
			
	 	 	 SECTION 2.1. Organization.
	  	7
	 	 	 SECTION 2.2. Capitalization of the New Company; Title.
	  	8
	 	 	 SECTION 2.3. Partnership Capitalization; Title.
	  	8
	 	 	 SECTION 2.4. Subsidiaries; Equity Interests; Business of GP Companies.
	  	10
	 	 	 SECTION 2.5. Validity of Agreement; Authorization.
	  	10
	 	 	 SECTION 2.6. No Conflict or Violation.
	  	11
	 	 	 SECTION 2.7. Consents and Approvals.
	  	11
	 	 	 SECTION 2.8. New Company Financial Statements; SEC Reports; Operating Surplus.
	  	12
	 	 	 SECTION 2.9. Absence of Certain Changes or Events.
	  	12
	 	 	 SECTION 2.10. Tax Matters.
	  	13
	 	 	 SECTION 2.11. Absence of Undisclosed Liabilities.
	  	14
	 	 	 SECTION 2.12. Real and Personal Property.
	  	14
	 	 	 SECTION 2.13. Intellectual Property and Computer Hardware.
	  	15
	 	 	 SECTION 2.14. Licenses, Permits and Governmental Approvals.
	  	16
	 	 	 SECTION 2.15. Compliance with Law.
	  	16
	 	 	 SECTION 2.16. Litigation.
	  	17
	 	 	 SECTION 2.17. Contracts.
	  	17
	 	 	 SECTION 2.18. Brokers.
	  	18
	 	 	 SECTION 2.19. Employees; Employee Plans.
	  	18
	 	 	 SECTION 2.20. Insurance.
	  	19
	 	 	 SECTION 2.21. Environmental; Health and Safety Matters.
	  	20
	 	 	 SECTION 2.22. Regulatory Matters.
	  	22
	 	 	 SECTION 2.23. Books and Records; Other Information.
	  	22
	 	 	 SECTION 2.24. WPL Contribution Agreement.
	  	22
	 	 	 SECTION 2.25. Customers and Suppliers.
	  	22
	 	 	 SECTION 2.26. Adequacy of Assets.
	  	22
	 	 	 SECTION 2.27. Excluded Assets.
	  	22
	 	 	 SECTION 2.28. Solvency.
	  	23
	 	 	 SECTION 2.29. Auction Process.
	  	23
		
	 ARTICLE III. REPRESENTATIONS AND WARRANTIES OF BUYER
	  	23
			
	 	 	 SECTION 3.1. Limited Partnership Organization.
	  	23
	 	 	 SECTION 3.2. Validity of Agreement; Authorization.
	  	23
	 	 	 SECTION 3.3. No Conflict or Violation.
	  	24
	 	 	 SECTION 3.4. Consents and Approvals.
	  	24
	 	 	 SECTION 3.5. Financial Ability.
	  	24
	 	 	 SECTION 3.6. Buyer Status.
	  	24

  

 i 

					
	 	 	 SECTION 3.7. Brokers.
	  	25
	 	 	 SECTION 3.8. Independent Investigation.
	  	25
	 	 	 SECTION 3.9. Investment Intent; Investment Experience; Restricted Securities.
	  	25
		
	 ARTICLE IV. COVENANTS
	  	25
			
	 	 	 SECTION 4.1. Certain Changes and Conduct of Business.
	  	25
	 	 	 SECTION 4.2. Access to Properties and Records.
	  	27
	 	 	 SECTION 4.3. Employee Matters.
	  	29
	 	 	 SECTION 4.4. Consents and Approvals.
	  	34
	 	 	 SECTION 4.5. Further Assurances.
	  	35
	 	 	 SECTION 4.6. Commercially Reasonable Efforts.
	  	36
	 	 	 SECTION 4.7. Notice of Breach.
	  	36
	 	 	 SECTION 4.8. Confidential Information.
	  	36
	 	 	 SECTION 4.9. Tax Covenants.
	  	37
	 	 	 SECTION 4.10. Insurance, Bonds and Collateral.
	  	38
	 	 	 SECTION 4.11. Information Technology.
	  	39
	 	 	 SECTION 4.12. Software License.
	  	41
	 	 	 SECTION 4.13. Non-software Copyright License.
	  	42
	 	 	 SECTION 4.14. Transitional Trademark License; Legal Names.
	  	42
	 	 	 SECTION 4.15. Maximum Amount of Certain of Buyer’s Costs and Expenses.
	  	43
	 	 	 SECTION 4.16. Office Lease; Office Furniture and Equipment; Office Supplies.
	  	44
	 	 	 SECTION 4.17. No Solicitation; Termination of Discussions.
	  	44
	 	 	 SECTION 4.18. Confirmation of Termination of Old Omnibus Agreement.
	  	45
	 	 	 SECTION 4.19. New Company Intercompany Accounts.
	  	45
	 	 	 SECTION 4.20. Certain Costs and Expenses of Board of Directors of New Company.
	  	46
	 	 	 SECTION 4.21. New Company Audited Financial Statements.
	  	46
		
	 ARTICLE V. CONDITIONS TO OBLIGATIONS OF BUYER
	  	46
			
	 	 	 SECTION 5.1. Receipt of Documents.
	  	46
	 	 	 SECTION 5.2. Representations and Warranties of the Selling Parties.
	  	46
	 	 	 SECTION 5.3. Performance of Selling Parties’ Obligations.
	  	47
	 	 	 SECTION 5.4. Consents and Approvals.
	  	47
	 	 	 SECTION 5.5. No Violation of Orders.
	  	47
	 	 	 SECTION 5.6. Director Resignations.
	  	48
	 	 	 SECTION 5.7. Employment
	  	48
	 	 	 SECTION 5.8. Legal Opinion.
	  	48
	 	 	 SECTION 5.9. Debt Financing.
	  	48
	 	 	 SECTION 5.10. Absence of Specified Events.
	  	48
	 	 	 SECTION 5.11. Material Adverse Effect.
	  	48
	 	 	 SECTION 5.12. Financial Advisor’s Opinion.
	  	48
	 	 	 SECTION 5.13. Waivers of Existing Debt Agreements.
	  	49
		
	 ARTICLE VI. CONDITIONS TO OBLIGATIONS OF SELLING PARTIES
	  	49
			
	 	 	 SECTION 6.1. Receipt of Documents.
	  	49
	 	 	 SECTION 6.2. Representations and Warranties of Buyer.
	  	49
	 	 	 SECTION 6.3. Performance of Buyer’s Obligations.
	  	49
	 	 	 SECTION 6.4. Consents and Approvals.
	  	49

  

 ii 

					
	 	 	 SECTION 6.5. No Violation of Orders.
	  	50
	 	 	 SECTION 6.6. Legal Opinion.
	  	50
	 	 	 SECTION 6.7. Assumption of Consent Decree
	  	50
		
	 ARTICLE VII. TERMINATION AND ABANDONMENT
	  	50
			
	 	 	 SECTION 7.1. Methods of Termination; Upset Date.
	  	50
	 	 	 SECTION 7.2. Effect of Termination.
	  	51
		
	 ARTICLE VIII. SURVIVAL; INDEMNIFICATION
	  	51
			
	 	 	 SECTION 8.1. Survival.
	  	51
	 	 	 SECTION 8.2. Indemnification Coverage.
	  	52
	 	 	 SECTION 8.3. Procedures.
	  	56
	 	 	 SECTION 8.4. Waiver of Consequential, Etc. Damages.
	  	57
	 	 	 SECTION 8.5. Compliance with Express Negligence Rule.
	  	57
	 	 	 SECTION 8.6. Liquidated Damages.
	  	57
	 	 	 SECTION 8.7. Remedy.
	  	58
	 	 	 SECTION 8.8. Tax Treatment of Indemnity Payments.
	  	58
		
	 ARTICLE IX. MISCELLANEOUS PROVISIONS
	  	58
			
	 	 	 SECTION 9.1. Publicity.
	  	58
	 	 	 SECTION 9.2. Successors and Assigns; Third-Party Beneficiaries.
	  	59
	 	 	 SECTION 9.3. Investment Bankers, Financial Advisors, Brokers and Finders.
	  	59
	 	 	 SECTION 9.4. Fees and Expenses.
	  	60
	 	 	 SECTION 9.5. Off-Set Right.
	  	60
	 	 	 SECTION 9.6. Notices.
	  	60
	 	 	 SECTION 9.7. Entire Agreement.
	  	61
	 	 	 SECTION 9.8. Waivers and Amendments.
	  	62
	 	 	 SECTION 9.9. Severability.
	  	62
	 	 	 SECTION 9.10. Titles and Headings.
	  	62
	 	 	 SECTION 9.11. Signatures and Counterparts.
	  	62
	 	 	 SECTION 9.12. Enforcement of the Agreement; Damages.
	  	63
	 	 	 SECTION 9.13. Governing Law.
	  	63
	 	 	 SECTION 9.14. Disclosure.
	  	63
	 	 	 SECTION 9.15. Consent to Jurisdiction.
	  	63
	 	 	 SECTION 9.16. Certain Definitions.
	  	64

  

 iii 

 Exhibits 
  

			
	 Exhibit 1.2(a)(i)
	  	 WES Bill of Sale

	 Exhibit 1.2(a)(ii)
	  	 WNGL Bill of Sale

	 Exhibit 1.2(a)(iv)(1)
	  	 New Omnibus Agreement

	 Exhibit 1.2(a)(iv)(2)
	  	 Transition Services Agreement

	 Exhibit 1.2(a)(iv)(3)
	  	 ATLAS Assignment, Contribution and License Agreement

	 Exhibit 1.2(a)(iv)(4)
	  	 Services Agreement

	 Exhibit 5.8
	  	 Opinion of Counsel(s) for the Selling Parties

	 Exhibit 6.6
	  	 Opinion of Counsel for the Buyer

	
	 Disclosure Schedules

		
	 Schedule 1.3
	  	 Purchase Price Allocation

	 Schedule 2.1
	  	 Qualification Jurisdictions

	 Schedule 2.3(d)(i)
	  	 Preemptive Purchase Rights

	 Schedule 2.3(d)(ii)
	  	 Outstanding Options

	 Schedule 2.4
	  	 Subsidiaries; Equity Interests; Encumbrances

	 Schedule 2.6
	  	 Conflict or Violation; Encumbrances

	 Schedule 2.7
	  	 Seller Parties’ Consents and Approvals

	 Schedule 2.8
	  	 New Company Financial Statements

	 Schedule 2.9
	  	 Certain Changes or Events

	 Schedule 2.10(b)(i)
	  	 Tax Matters

	 Schedule 2.10(b)(ii)
	  	 Contested Taxes Exceeding $100,000

	 Schedule 2.11
	  	 Absence of Undisclosed Liabilities

	 Schedule 2.12(a)
	  	 Real and Personal Property

	 Schedule 2.12(b)
	  	 Permitted Encumbrances

	 Schedule 2.13(a)
	  	 Intellectual Property

	 Schedule 2.13(b)
	  	 Licensed Software

	 Schedule 2.14
	  	 Licenses, Permits and Governmental Approvals

	 Schedule 2.15
	  	 Compliance with Laws

	 Schedule 2.16
	  	 Litigation

	 Schedule 2.17
	  	 Material Contracts

	 Schedule 2.18
	  	 Seller Parties’ Brokers

	 Schedule 2.19(b)(i)
	  	 Employee Plans

	 Schedule 2.19(b)(ii)
	  	 Seller Plans

	 Schedule 2.19(f)(i)
	  	 Business Employees

	 Schedule 2.19(f)(ii)
	  	 Change of Control Agreements

	 Schedule 2.19(g)(i)
	  	 Represented Employees

	 Schedule 2.19(g)(ii)
	  	 Union Organizing Activities

	 Schedule 2.20(a)(i)
	  	 Parent Policies

	 Schedule 2.20(a)(ii)
	  	 Partnership Policies

	 Schedule 2.20(b)
	  	 Additional Policies

	 Schedule 2.21
	  	 Environmental; Health and Safety Matters

	 Schedule 2.25
	  	 Termination Notices

	 Schedule 2.26
	  	 Adequacy of Assets

	 Schedule 3.4
	  	 Buyer’s Consents and Approvals

  

 iv 

			
	 Schedule 3.7
	  	 Buyer’s Brokers

	 Schedule 4.1
	  	 Certain Changes and Conduct of Business

	 Schedule 4.10(a)
	  	 Bonds, Letters of Credit and Cash Collateral

	 Schedule 4.14
	  	 Legal Names

	 Schedule 5.13
	  	 Forms of Waivers Under Existing Debt Agreements

	 Schedule 8.2(c)
	  	 Environmental Matters Subject to Special Indemnification

	 Schedule 8.3(b)
	  	 Environmental Remediation Procedures

  

 v 

 PURCHASE AGREEMENT 
  
 THIS PURCHASE AGREEMENT (this “Agreement”) is made and entered into as of this 18th day of April, 2003, by
and among WILLIAMS ENERGY SERVICES, LLC, a Delaware limited liability company (“WES”), WILLIAMS NATURAL GAS LIQUIDS, INC., a Delaware corporation (“WNGL”), and Williams GP LLC, a Delaware limited liability company
(the “Old Company,” and collectively with WES and WNGL, the “Selling Parties”) and WEG Acquisitions, L.P., a Delaware limited partnership (“Buyer”). 
  
 W I T N E S S E T H: 
  
 WHEREAS, WES and WNGL are the sole members of both (i) WEG GP
LLC, a Delaware limited liability company (the “New Company,” and with the Old Company, the “GP Companies”) and (ii) the Old Company; 
  
 WHEREAS, (i) WES owns a 99.81% membership interest in the New Company (the “WES New LLC
Interests”), and WNGL owns a 0.19% membership interest in the New Company (the “WNGL New LLC Interests,” and with the WES New LLC Interest, the “New LLC Interests”); and (ii) WES owns a 99.80%
membership interest in the Old Company and WNGL owns a 0.20% membership interest in the Old Company; 
  
 WHEREAS, the New Company is the sole general partner of Williams Energy Partners, L.P., a Delaware limited partnership (the
“Partnership”), and the New Company owns (i) a 2.0% general partner interest in the Partnership (the “GP Interest”) and (ii) all of the incentive distribution rights with respect to the Partnership (the
“IDRs”); 
  
 WHEREAS, other than the GP
Interest and the IDRs, the Partnership also has outstanding common units representing limited partner interests in the Partnership (the “Common Units”), Class B common units representing limited partner interests in the Partnership
(the “Class B Common Units”) and subordinated units representing limited partner interests in the Partnership (the “Subordinated Units”); 
  
 WHEREAS, WES owns 757,193 Common Units (the “WES Common Units”) and 4,589,193 subordinated units
(the “WES Subordinated Units,” and with the WES Common Units, the “WES Units”), which, in the aggregate, represent a 19.3% limited partner interest in the Partnership; 
  
 WHEREAS, WNGL owns 322,501 Common Units (the “WNGL Common
Units”) and 1,090,501 Subordinated Units (the “WNGL Subordinated Units,” and with the WNGL Common Units, the “WNGL Units”), which, in the aggregate, represent a 5.1% limited partner interest in the
Partnership; 
  
 WHEREAS, the Old Company owns 7,830,924
Class B Common Units, which, in the aggregate, represent a 28.2% limited partner interest in the Partnership; 
  
 WHEREAS, the general public holds 12,600,000 Common Units, which, in the aggregate, represent a 45.4% limited partner interest in the Partnership;

 WHEREAS, Buyer desires to purchase the New LLC Interests, the WES Units, the WNGL Units and the
Class B Common Units (collectively, the “Securities”) from the respective Selling Parties, and each Selling Party desires to sell the Securities owned by it to the Buyer, in each case upon the terms and subject to the conditions set
forth in this Agreement; 
  
 WHEREAS, as of the date
hereof, The Williams Companies, Inc. (“Parent”) has entered into a Guaranty and Covenant Agreement (“Parent Guaranty”) in favor of Buyer and the other Buyer Indemnified Parties, pursuant to which, among other
things, Parent has guaranteed the payment and performance by the Selling Parties of all of their liabilities and obligations under this Agreement and the Transaction Documents (as defined herein); 
  
 WHEREAS, the Board of Directors of Parent has received an opinion from
Lehman Brothers, Inc., dated as of the date hereof, to the effect that the consideration (as defined therein) to be received by Parent pursuant to this Agreement is fair, from a financial point of view, to Parent; and 
  
 NOW, THEREFORE, in consideration of the mutual terms, conditions and
other agreements set forth herein, the parties hereto hereby agree as follows: 
  
 ARTICLE I. 
 SALE AND PURCHASE 
  
 SECTION 1.1. Agreement to Sell and to Purchase. 
  
 (a) On the Closing Date (as hereinafter defined) and upon the terms and subject to the conditions set forth in this
Agreement: 
  
 (i) WES shall sell, assign,
transfer, convey and deliver to Buyer, and Buyer shall purchase and accept from WES, the WES New LLC Interests and the WES Units, in each case, free and clear of any pledges, restrictions on transfer, proxies and voting or other agreements, liens,
claims, charges, mortgages, security interests or other legal or equitable encumbrances, limitations or restrictions of any nature whatsoever (“Encumbrances”), except, in the case of the WES New LLC Interests, as may be set forth in
the New LLC Agreement (as defined in Section 2.2) or, in the case of the WES Units, as may be set forth in the Partnership Agreement (as defined in Section 2.3); 
  
 (ii) WNGL shall sell, assign, transfer, convey and deliver to Buyer, and Buyer shall purchase and accept
from WNGL, the WNGL New LLC Interests and the WNGL Units, in each case, free and clear of any Encumbrances, except, in the case of the WNGL New LLC Interests, as may be set forth in the New LLC Agreement or, in the case of the WNGL Units, as may be
set forth in the Partnership Agreement; and 
  
 (iii) The Old Company shall sell, assign, transfer, convey and deliver to Buyer, and Buyer shall purchase and accept from the Old Company, the Class B Common Units, free and clear of any Encumbrances, except as may be set forth in the
Partnership Agreement. 
  

 -2- 

 (b) The closing of such sale and purchase (the “Closing”) shall take place at 10:00 a.m.
(New York time), on the third business day after the satisfaction of the conditions contained in Articles V and VI (other than those conditions that by their nature are to be fulfilled at Closing), or at such other time and date
as the parties hereto shall agree in writing (the “Closing Date”), at the offices of Vinson & Elkins L.L.P. in New York, New York or at such other place as the parties hereto shall agree in writing. 
  
 SECTION 1.2. Deliveries at Closing. 
  
 (a) At the Closing, the Selling Parties shall make the following deliveries
to Buyer: 
  
 (i) WES shall deliver to Buyer:

  

	 	(1)	a duly executed bill of sale, in substantially the form attached hereto as Exhibit 1.2(a)(i), transferring the WES New LLC Interests (the “WES Bill of
Sale”); 

  

	 	(2)	(i) a duly executed certificate, countersigned by the Transfer Agent (as defined below), representing 757,193 Common Units in the name of the Buyer (or an Affiliate designated
in writing), (ii) a copy of a letter from WES, addressed to and acknowledged by the Bank of New York, as the transfer agent and registrar with respect to the Common Units (the “Transfer Agent”), instructing such Transfer Agent
to cancel the certificate(s) representing the WES Common Units and to reissue a new certificate representing 757,193 Common Units in the name of the Buyer (or an Affiliate designated in writing) and (iii) a copy of the cancelled certificate(s)
representing the WES Common Units; 

  

	 	(3)	(i) a duly executed certificate, countersigned by the transfer agent therefor, representing 4,589,193 Subordinated Units in the name of the Buyer (or an Affiliate designated in
writing), (ii) a copy of a letter from WES, addressed to and acknowledged by the New Company, as the general partner of the Partnership and the transfer agent and registrar with respect to the Subordinated Units, instructing the New Company to
cancel the certificate(s) representing the WES Subordinated Units and to reissue a new certificate representing 4,589,193 Subordinated Units in the name of the Buyer (or an Affiliate designated in writing) and (iii) a copy of the cancelled
certificate(s) representing the WES Subordinated Units; 

  
 (ii) WNGL shall deliver to Buyer: 
  

	 	(1)	a duly executed bill of sale, in substantially the form attached hereto as Exhibit 1.2(a)(ii), transferring the WNGL New LLC Interests (the “WNGL Bill of
Sale,” and with the WES Bill of Sale, the “Bills of Sale”); 

  

 -3- 

	 	(2)	(i) a duly executed certificate, countersigned by the Transfer Agent, representing 322,501 Common Units in the name of the Buyer (or an Affiliate designated in writing),
(ii) a copy of a letter from WNGL, addressed to and acknowledged by the Transfer Agent, instructing the Transfer Agent to cancel the certificate(s) representing the WNGL Common Units and to reissue a new certificate representing 322,501 Common
Units in the name of the Buyer (or an Affiliate designated in writing) and (iii) a copy of the cancelled certificate(s) representing the WNGL Common Units; 

  

	 	(3)	(i) a duly executed certificate, countersigned by the transfer agent therefor, representing 1,090,501 Subordinated Units in the name of the Buyer (or an Affiliate designated in
writing), (ii) a copy of a letter from WNGL, addressed to and acknowledged by the New Company, as the general partner of the Partnership and the transfer agent and registrar with respect to the Subordinated Units, instructing the New Company to
cancel the certificate(s) representing the WNGL Subordinated Units and to reissue a new certificate representing 1,090,501 Subordinated Units in the name of the Buyer (or an Affiliate designated in writing) and (iii) a copy of the cancelled
certificate(s) representing the WNGL Subordinated Units; 

  
 (iii) the Old Company shall deliver to Buyer: (1) a duly executed certificate, countersigned by the transfer agent therefor, representing 7,830,924 Class B Common Units in the name of the Buyer (or an
Affiliate designated in writing), (2) a copy of a letter from the Old Company, addressed to and acknowledged by the New Company, as the general partner of the Partnership and the transfer agent and registrar with respect to the Class B Common
Units, instructing the New Company to cancel the certificate(s) representing 7,830,924 Class B Common Units in the name of the Old Company and to reissue a new certificate representing 7,830,924 Class B Common Units in the name of the Buyer (or
an Affiliate designated in writing) and (3) a copy of the cancelled certificate(s) in the name of the Old Company; 
  
 (iv) WES and WNGL shall together deliver to Buyer: 
  

	 	(1)	a duly executed copy of the New Omnibus Agreement, in substantially the form attached hereto as Exhibit 1.2(a)(iv)(1); 

  

	 	(2)	a duly executed copy of the Transition Services Agreement, in substantially the form attached hereto as Exhibit 1.2(a)(iv)(2); 

  

 -4- 

	 	(3)	a duly executed copy of the ATLAS Assignment, Contribution and License Agreement, in substantially the form attached hereto as Exhibit 1.2(a)(iv)(3); and

  

	 	(4)	a duly executed copy of a Services Agreement between Buyer and the Selling Parties, in form and substance to be mutually agreed on by the parties, reflecting the terms on the term
sheet attached as Exhibit 1.2(a)(iv)(4). 

  
 (b) At the Closing, Buyer shall make the following deliveries to the Selling Parties (or the New Company as specified in clause (ii) below): 
  
 (i) payment of the First Payment of the Purchase Price, as provided in Section 1.3 below; 
  
 (ii) one or more transfer applications in respect of the
Common Units, Class B Common Units and Subordinated Units to be acquired by it, in the form specified in the Partnership Agreement, seeking admission to the Partnership as a substitute limited partner (the “Unit Transfer
Application(s)”); 
  
 (iii) a duly
executed copy of the New Omnibus Agreement, in substantially the form attached hereto as Exhibit 1.2(a)(iv)(1); 
  
 (iv) a duly executed copy of the Transition Services Agreement, in substantially the form attached hereto as Exhibit 1.2(a)(iv)(2);

  
 (v) a duly executed copy of the ATLAS
Assignment, Contribution and License Agreement, in substantially the form attached hereto as Exhibit 1.2(a)(iv)(3); and 
  
 (vi) a duly executed copy of a Services Agreement between Buyer and the Selling Parties, in form and substance to be mutually agreed on by
the parties, reflecting the terms on the term sheet attached as Exhibit 1.2(a)(iv)(4). 
  
 SECTION 1.3. Purchase Price 
  
 (a) The aggregate purchase price for the Securities (the “Purchase Price”), subject to adjustment, if applicable, only pursuant to Section 1.3(f) and Section 8.8, shall be paid to the Selling Parties
in up to four payments, of which: 
  
 (i) the
first payment of the Purchase Price shall be $509,868,000.00 (the “First Payment”) and shall be paid as provided in Section 1.3(b); 
  
 (ii) the Second Payment (defined below) shall be calculated and paid as specified in Sections 1.3(b)
and (c) below; 
  
 (iii) the Third
Payment (defined below) shall be calculated and paid as specified in Sections 1.3(b) and (d) below; and 
  

 -5- 

 (iv) the Fourth Payment (defined below) shall be paid as specified in Sections
1.3(b) and (e) below. 
  
 (b) Each of the First
Payment, the Second Payment and the Third Payment shall be paid by wire transfer to the Selling Parties of immediately available funds made to not more than three bank accounts in the United States of America, as designated in writing by the Selling
Parties not less than three business days in advance of the applicable payment, (i) on the Closing Date (in the case of the First Payment), (ii) on the date specified in Section 1.3(c) (in the case of the Second Payment) and
(iii) from time to time as provided in Section 1.3(d) hereof (in the case of the Third Payment). The Buyer shall pay the Fourth Payment from time to time in accordance with Section 8.2(c) hereof. The Purchase Price shall
be allocated between the Selling Parties and among the Securities in accordance with Schedule 1.3, which schedule shall be completed prior to Closing. 
  
 (c) If the Closing occurs at any time on or after May 1, 2003 (or if the Closing shall occur during the quarterly period ending September 30,
2003, August 1, 2003), the Buyer will pay to the Selling Parties an amount equal to the product of the Per Day Rate (as defined below) times the number of calendar days in the period that commences on May 1, 2003 (or if the Closing
shall occur during the quarterly period ending September 30, 2003, August 1, 2003) and ends on the Closing Date; provided, however, in no event shall the amount payable pursuant to this Section 1.3(c) exceed the
product of the Per Day Rate times fifteen (15) (the amount, if any, calculated pursuant to this Section 1.3(c), the “Second Payment”). As used herein, the term “Per Day Rate” means a fraction, of
which (i) the numerator is equal to the product of (A) the quarterly cash distribution per Common Unit for the quarterly period ending June 30, 2003 (or, in the event that the Closing occurs subsequent to the record date for the cash
distribution for the quarterly period ending June 30, 2003 and prior to the record date for the cash distribution for the quarterly period ending September 30, 2003, the quarterly cash distribution per Common Unit for the quarterly period
ending September 30, 2003) times (B) 14,590,312, and (ii) of which the denominator is 91. Buyer shall pay the Second Payment to the Selling Parties within one business day following the date of receipt from the Partnership by Buyer of
the cash distribution to the holders of Common Units for the quarterly period ending June 30, 2003 (or, in the event that the Closing occurs subsequent to the record date for the cash distribution for the quarterly period ending June 30,
2003 and prior to the record date for the cash distribution for the quarterly period ending September 30, 2003, within one business day following the date of receipt from the Partnership by Buyer of the cash distribution to the holders of
Common Units for the quarterly period ending September 30, 2003), or as soon thereafter as Buyer is permitted to make payment of the Second Payment under the definitive debt financing documents pursuant to the debt financing commitment letter
described in Section 3.5. 
  
 (d) From and after the
Closing Date, upon any sale by Buyer or any of its Affiliates (excluding the Partnership Group) of any Common Units (including, without limitation, Common Units issued to Buyer or its Affiliates upon conversion of the Class B Common Units or the
Subordinated Units) or of any Class B Common Units or upon the redemption by any of the Partnership Entities of any of the Common Units or Class B Common Units held by Buyer or its Affiliates (excluding the Partnership Group), Buyer shall pay to the
Selling Parties an amount for each such Common Unit or Class B Common Unit sold or redeemed equal to 85% of the amount, if any, by which the proceeds received by the Buyer or its 
  

 -6- 

 Affiliates (net of any underwriting commissions, placement fees or other offering expenses payable by the Buyer or its
Affiliates) exceeds $37.50 per Common Unit or Class B Common Unit (the aggregate amounts, if any, payable to the Selling Parties pursuant to this Section 1.3(d), the “Third Payment”); provided, however, that
this Section 1.3(d) shall apply only with respect to the first 5,000,000 units (whether Common Units or Class B Common Units or any combination thereof) held by Buyer or its Affiliates (excluding the Partnership Group) which are sold or
redeemed; provided, further, that the maximum amount payable to the Selling Parties pursuant to this Section 1.3(d) shall in no event exceed $20 million. Buyer undertakes and agrees to notify the Selling Parties in writing
promptly after each such sale or redemption of Common Units or Class B Common Units (which notice shall include the price(s) at which such Common Units or Class B Common Units were sold or redeemed). Buyer shall pay any amounts due to the Selling
Parties pursuant to this Section 1.3(d) no later than the third business day following the closing date of any such sale or redemption. For so long as the Selling Parties are entitled to receive payments pursuant to this
Section 1.3(d), Buyer agrees that it shall not, and shall not permit its Affiliates (excluding the Partnership Group) to, sell, convey, assign or otherwise dispose of any Common Units or Class B Common Units for consideration other than
cash. Notwithstanding the foregoing, this Section 1.3(d) shall not in any way obligate Buyer or any of its Affiliates (i) to sell any Common Units or Class B Common Units or give rise to any optional or mandatory redemption rights
or obligations with respect to the Common Units or the Class B Common Units or (ii) to make any payments to the Selling Parties to the extent not permitted under any definitive debt financing documents entered into pursuant to the debt
financing commitment letter described in Section 3.5. 
  
 (e) Buyer shall assume at the Closing the obligations, and make the applicable payments from time to time, as specified in accordance with Section 8.2(c) hereof (the “Fourth Payment”). 
  
 (f) If the Closing Price (as defined in Section 9.16) of the
Common Units as of three business days prior to Closing is less than $32.00 per unit, then the First Payment shall be reduced by an amount equal to the difference between $32.00 and such Closing Price multiplied by 14,590,312. 
  
 ARTICLE II. 
 REPRESENTATIONS AND WARRANTIES OF SELLING PARTIES 
  
 As of the date hereof, each of the Selling Parties hereby represents and warrants, jointly and severally, to Buyer as follows: 
  
 SECTION 2.1. Organization. 
  
 (a) WES is a limited liability company duly formed, validly existing and in
good standing under the laws of Delaware, and WNGL is a corporation duly formed, validly existing and in good standing under the laws of Delaware. 
  
 (b) Each of the GP Companies is a limited liability company, duly formed, validly existing and in good standing under the laws of Delaware, and the
Partnership is a limited partnership duly formed, validly existing and in good standing under the laws of Delaware. Each 
  

 -7- 

 
of the Partnership Entities (as defined in Section 2.4) is a corporation, limited partnership or limited liability company, as the case may be,
duly formed, validly existing and in good standing under the laws of Delaware and has all requisite corporate, limited partnership or limited liability company power and authority, as the case may be, and all governmental licenses, authorizations,
permits, consents and approvals to own its respective properties and assets and to conduct its business as now conducted, except where the failure to have such governmental licenses, authorizations, permits, consents and approvals would not have a
Material Adverse Effect (as defined in Section 9.16). Each of the Partnership Entities is duly qualified to do business as a foreign entity and is in good standing in each jurisdiction where the character of the properties owned or
leased by it or the nature of the business conducted by it makes such qualification necessary, except where the failure to be so qualified or in good standing would not individually or in the aggregate have a Material Adverse Effect. Schedule
2.1 sets forth for each Partnership Entity all of the jurisdictions in which such Partnership Entity is qualified to do business. 
  
 SECTION 2.2. Capitalization of the New Company; Title. 
  
 WES and WNGL are the sole members of the New Company in the proportions set forth in the Recitals to this Agreement. The WES New LLC Interests are owned
of record and beneficially solely by WES, and the WNGL New LLC Interests are owned of record and beneficially solely by WNGL. All of such New LLC Interests have been duly authorized and validly issued in accordance with the Limited Liability Company
Agreement of the New Company, dated as of November 15, 2002 (the “New LLC Agreement”), are fully paid (to the extent required by the New LLC Agreement) and nonassessable (except as such nonassessability may be affected by
Section 18-607 of the Delaware Limited Liability Company Act). Except for the New LLC Interests, there are no outstanding securities of the New Company. There are no preemptive or other rights to subscribe for or to purchase, nor any
restriction upon the voting or transfer of, any interest in the New Company pursuant to any agreement to which any of the New Company or the Selling Parties is a party or to which any of them may be bound. There are no outstanding options, warrants
or similar rights to purchase or acquire any equity interests in the New Company. Each of the Selling Parties has valid and marketable title to the New LLC Interest owned by it, free and clear of any Encumbrances (other than the Parent Credit
Facility Liens (as defined in Section 9.16), which shall be released at or prior to Closing). A true and correct copy of the New LLC Agreement, with any and all amendments thereto to the date hereof, has been made available by the
Selling Parties to the Buyer or its representatives. 
  
 SECTION 2.3. Partnership Capitalization; Title. 
  
 (a) The New Company is the sole general partner of the Partnership. The New Company is the sole record and beneficial owner of the GP Interest, which represents a 2.0% general partner interest in the Partnership, and the GP Interest has
been duly authorized and validly issued in accordance with the Partnership Agreement. Except for any Encumbrances provided in the Partnership Agreement, the New Company owns such GP Interest, free and clear of any Encumbrances. 
  
 (b) As of the date hereof, the Partnership has no limited partner interests
issued and outstanding other than the following: 
  

 -8- 

 (i) 12,600,000 Common Units issued to the general public; 
  
 (ii) the WES Common Units and the WNGL Common Units issued
to WES and WNGL, respectively, and with respect to which WES and WNGL, as applicable, are the sole record and beneficial owners and have valid and marketable title (subject to restrictions on transfer that may be imposed thereon under the Securities
Act and state “blue sky” securities laws); 
  
 (iii) the WES Subordinated Units and the WNGL Subordinated Units issued to WES and WNGL, respectively, and with respect to which WES and WNGL, as applicable, are the sole record and beneficial owners and have valid and marketable title
(subject to restrictions on transfer that may be imposed thereon under the Securities Act and state “blue sky” securities laws); 
  
 (iv) the Class B Common Units issued to the Old Company and with respect to which the Old Company is the sole record and beneficial owner
and has valid and marketable title (subject to restrictions on transfer that may be imposed thereon under the Securities Act and state “blue sky” securities laws); and 
  
 (v) the IDRs held by the New Company and with respect to which the New Company is the sole record and
beneficial owner and has valid and marketable title (subject to restrictions on transfer that may be imposed thereon under the Securities Act and state “blue sky” securities laws). 
  
 Each of such Common Units, Subordinated Units, Class B Common Units and IDRs
and the limited partner interests represented thereby have been duly authorized and validly issued in accordance with the Second Amended and Restated Agreement of Limited Partnership of the Partnership, dated as of September 27, 2002, as
amended by Amendments Nos. 1 and 2 thereto, each dated as of November 15, 2002 (as amended, the “Partnership Agreement”); and are fully paid (to the extent required under the Partnership Agreement) and nonassessable (except to
the extent such nonassessability may be affected by Section 17-607 of the Delaware Revised Uniform Limited Partnership Act (the “Delaware LP Act”)). 
  
 (c) Except for any Encumbrances provided in the Partnership Agreement, (i) the New Company owns all of the IDRs, free
and clear of any Encumbrances, (ii) the Old Company owns all of the Class B Common Units, free and clear of any Encumbrances (other than the Parent Credit Facility Liens, which shall be released at or prior to Closing), (iii) WES owns all
of the WES Units, free and clear of any Encumbrances (other than the Parent Credit Facility Liens, which shall be released at or prior to Closing), and (iv) WNGL owns all of the WNGL Units, free and clear of any Encumbrances (other than the
Parent Credit Facility Liens, which shall be released at or prior to Closing). 
  
 (d) Except as described in the Partnership Agreement or in Schedule 2.3(d)(i) hereto, there are no preemptive or other rights to subscribe for or to purchase, nor any restriction upon the voting or transfer of
any interest in the Partnership (provided that the foregoing shall not apply to any such restriction on voting or transfer that any holder of Common Units (other than the Selling Parties) may have imposed upon such Common Units). Except as described
in 

  

 -9- 

 
the Partnership Agreement and for “phantom” units (“Phantom Units”) granted under the Williams Energy Partners Long-Term Incentive
Plan as described in Schedule 2.3(d)(ii), there are no outstanding options, warrants or similar rights to purchase or acquire from any of the Partnership Entities, Parent or the Selling Parties any equity interests in the Partnership.

  
 SECTION 2.4. Subsidiaries; Equity Interests; Business of GP
Companies. 
  
 (a) Except as set forth on Schedule
2.4, neither of the GP Companies nor the Partnership has any subsidiaries, and does not own, directly or indirectly, any shares of capital stock, voting rights or other equity interests or investments in any other Person. Except as set forth in
the Partnership Agreement or on Schedule 2.4, neither of the GP Companies nor the Partnership has any obligation or rights to acquire by any means, directly or indirectly, any capital stock, voting rights, equity interests or investments in
another Person. Except for Encumbrances set forth on Schedule 2.4, the Partnership owns, directly or indirectly, all of the issued and outstanding partnership, membership or other equity interests of each of the subsidiaries set forth on
Schedule 2.4 free and clear of any Encumbrances. The New Company, the Partnership and each of the subsidiaries of the Partnership set forth on Schedule 2.4 are collectively referred to herein as the “Partnership
Entities.” 
  
 (b) Old Company was formed as a limited
liability company under the laws of Delaware on August 30, 2000 and, from its date of formation until November 15, 2002, did not (i) engage in or conduct, directly or indirectly, any business or other activities other than serving as
the general partner of the Partnership, owning the GP Interest, IDRs and Class B Common Units and owning all of the outstanding membership interests of Williams Energy Management LLC, a Delaware limited liability company (“Old Company
Subsidiary”), (ii) have any employees, (iii) incur any indebtedness, liability or obligations, absolute or contingent, other than any joint and several liability under Delaware law for indebtedness, liabilities and obligations of
the Partnership Group that are reflected in the consolidated financial statements of the Partnership included in the SEC Reports (other than Affiliate intercompany obligations incurred in the ordinary course of business), or (iv) own or hold
any ownership or other interests in any real or personal property other than as provided in clause (i) above. Old Company Subsidiary was formed as a limited liability company under the laws of Delaware on April 10, 2002 and, from its date
of formation until November 15, 2002, did not (1) engage in or conduct, directly or indirectly, any business or other activities, (2) have any employees, (3) incur any indebtedness, liability or obligation, absolute or contingent
(other than Affiliate intercompany obligations incurred in the ordinary course of business), or (4) own or hold any ownership or other interests in any real or personal property. New Company was formed as a limited liability company under the
laws of Delaware on November 12, 2002 and, since its date of formation, has not engaged in or conducted, directly or indirectly, any business or other activities other than serving as the general partner of the Partnership and owning the GP
Interest and the IDRs. 
  
 SECTION 2.5. Validity of Agreement;
Authorization. 
  
 Each of the Selling Parties and Parent has
the power and authority to enter into this Agreement and the Transaction Documents to which it is party and to carry out its obligations hereunder and thereunder. The execution and delivery of this Agreement and such Transaction Documents and the
performance of the Selling Parties’ and Parent’s obligations hereunder and 
  

 -10- 

 thereunder have been duly authorized by the Board of Directors of WES, the Board of Directors of WNGL, the members of the
Old Company and the Board of Directors of Parent, as applicable, and no other proceedings on the part of any of the Selling Parties or Parent are necessary to authorize such execution, delivery and performance. This Agreement and the Transaction
Documents to which any of the Selling Parties or Parent is party have been (in the case of this Agreement and the Parent Guaranty), or will be at the Closing (in the case of such other Transaction Documents), duly executed and delivered by each of
the Selling Parties or Parent, as applicable, and constitute, or will constitute at the Closing, as applicable, each such party’s valid and binding obligation enforceable against each such party 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). 
  
 SECTION 2.6. No Conflict or Violation. 
  
 The execution, delivery and performance of this Agreement and the
Transaction Documents by any of the Selling Parties or Parent does not and will not: (a) violate or conflict with any provision of the Organizational Documents (as defined in Section 9.16) of Parent, any Selling Party or any of the
Partnership Entities; (b) violate any applicable provision of law, statute, judgment, order, writ, injunction, decree, award, rule, or regulation of any foreign, federal, tribal, state or local government, court, arbitrator, agency or
commission or other governmental or regulatory body or authority (“Governmental Authority”); (c) violate, result in a breach of, constitute (with due notice or lapse of time or both) a default or cause any obligation, penalty
or premium to arise or accrue under any material contract, lease, loan agreement, mortgage, security agreement, trust indenture or other agreement or instrument to which Parent or any of the Selling Parties or Partnership Entities is a party or by
which any of them is bound or to which any of their respective properties or assets is subject; (d) result in the creation or imposition of any Encumbrance upon any of the properties or assets of any of the Partnership Entities; or
(e) result in the cancellation, modification, revocation or suspension of any License (as defined in Section 2.14) of any of the Partnership Entities, except in the cases of clauses (b), (d) and (e) above, as would not
have a Material Adverse Effect and, in the case of clauses (c) and (d) above, as set forth on Schedule 2.6. 
  
 SECTION 2.7. Consents and Approvals. 
  
 Except as disclosed on Schedule 2.7, no material consent, approval, waiver or authorization of, or filing, registration or qualification with, any
Governmental Authority or any other Person (on the part of Parent or any of the Selling Parties or Partnership Entities) is required for any such party to execute and deliver this Agreement or the Transaction Documents to which Parent or any of the
Selling Parties is party or to perform its respective obligations hereunder or thereunder (except under (i) the Parent Credit Facility and (ii) the Parent Credit Facility Security Documents (as defined in Section 9.16), which
consents or approvals will be obtained prior to or at Closing). 
  

 -11- 

 SECTION 2.8. New Company Financial Statements; SEC Reports; Operating Surplus. 
  
 (a) Attached as Schedule 2.8 are copies of the unaudited balance
sheet, as of December 31, 2002, and the unaudited income statements and statements of cash flows for the 12-month period, or portion thereof, ended December 31, 2002, of the New Company and the unaudited balance sheet, income statement and
statements of cash flows for the three-month period ended March 31, 2003, of the New Company (collectively, the “New Company Financial Statements”). The New Company Financial Statements were prepared in accordance with U.S.
generally accepted accounting principles (“GAAP”) applied on a consistent basis throughout the periods involved and fairly present in all material respects the financial condition of the New Company as of their respective dates and
the results of its operations for the periods covered thereby. 
  
 (b) Since October 30, 2000, (i) the Partnership has timely made all filings (the “SEC Reports”) required to be made under the Securities Act of 1933, as amended (the “Securities Act”), and the
Securities Exchange Act of 1934, as amended (the “Exchange Act”), (ii) all SEC Reports filed by the Partnership, at the time filed (in the case of documents filed pursuant to the Exchange Act) or when declared effective by the
Securities and Exchange Commission (the “SEC”) (in the case of registration statements filed under the Securities Act) complied in all material respects with the applicable requirements of the Securities Act and the Exchange Act and
the rules and regulations of the SEC thereunder, (iii) no such SEC Report, at the time described above, contained any untrue statement of a material fact or omitted to state any material fact required to be stated therein in order to make the
statements contained therein, in the light of the circumstances under which they were made, not misleading, (iv) all financial statements contained or incorporated by reference in such SEC Reports complied as to form when filed in all material
respects with the rules and regulations of the SEC with respect thereto, were prepared in accordance with GAAP applied on a consistent basis throughout the periods involved (except as may be indicated in the notes thereto) and fairly present in all
material respects the financial condition of the Partnership and its consolidated subsidiaries at and as of the respective dates thereof and the consolidated results of operations and changes in cash flows for the periods indicated (subject, in the
case of unaudited financial statements, to normal year-end audit adjustments consistent with prior periods). 
  
 (c) The Operating Surplus (as defined in the Partnership Agreement) of the Partnership as of March 31, 2003 was not less than $150 million.

  
 SECTION 2.9. Absence of Certain Changes or Events.

  
 Except as set forth on Schedule 2.9, since
December 31, 2002, the business of each of the Partnership Entities has been conducted in the ordinary course of business consistent with past practices and none of the Partnership Entities has taken any of the actions described in
Section 4.1(a) through (n), except in connection with entering into this Agreement. Since December 31, 2002, there has not been any event or condition that has had, or is reasonably expected to have, a Material Adverse
Effect. 
  

 -12- 

 SECTION 2.10. Tax Matters. 
  
 (a) For purposes of this Agreement, “Tax Returns” shall mean returns, reports, exhibits, schedules,
information statements and other documentation (including any additional or supporting material) filed or maintained, or required to be filed or maintained, in connection with the calculation, determination, assessment or collection of any Tax and
shall include any amended returns required as a result of examination adjustments made by the Internal Revenue Service or other Tax authority. For purposes of this Agreement, “Tax” or “Taxes” shall mean any and all
federal, state, local, foreign and other taxes, levies, fees, imposts and duties of whatever kind (including any interest, penalties or additions to the tax imposed in connection therewith or with respect thereto), including, without limitation,
taxes imposed on, or measured by, income, franchise, profits or gross receipts, and also ad valorem, value added, sales, use, service, real or personal property, capital stock, license, payroll, withholding, employment, social security,
workers’ compensation, unemployment compensation, utility, severance, production, excise, stamp, occupation, premium, windfall profits, transfer and gains taxes and customs duties. 
  
 (b) Except as disclosed on Schedule 2.10(b)(i), (i) each of the Partnership Entities has filed (or joined in the
filing of) when due all Tax Returns required by applicable law to be filed with respect to each of the Partnership Entities other than those Tax Returns the failure of which to file would not have a Material Adverse Effect; (ii) all such Tax
Returns were true, correct and complete in all material respects as of the time of such filing; (iii) all Taxes relating to periods ending on or before the Closing Date owed by the any of the Partnership Entities (whether or not shown on any
Tax Return) at any time on or prior to the Closing Date, if required to have been paid, have been or will be timely paid (except for Taxes that are being contested in good faith in appropriate proceedings and, to the extent the amount being
contested exceeds $100,000, that are set forth on Schedule 2.10(b)(ii)); (iv) any material liability of any of the Partnership Entities for Taxes not yet due and payable, or that is being contested in good faith in appropriate
proceedings, has been provided for on the financial statements of the applicable Partnership Entity or Entities, as the case may be, in accordance with GAAP; (v) there is no action, suit, proceeding, investigation, audit or claim now pending
against, or with respect to, any of the Partnership Entities in respect of any material Tax or Tax assessment, nor has any claim for additional material Tax or Tax assessment been asserted in writing or, to the Knowledge of the Selling Parties (as
defined in Section 9.16), been proposed by any Tax authority; (vi) since August 13, 2000, no written claim has been made by any Tax authority in a jurisdiction where any of the Partnership Entities does not currently file a Tax
Return that it is or may be subject to Tax by such jurisdiction, nor to the Knowledge of the Selling Parties has any such assertion been threatened or proposed in writing; (vii) none of the Partnership Entities has any outstanding request for
any extension of time within which to pay its Taxes or file its Tax Returns; (viii) there has been no waiver or extension of any applicable statute of limitations for the assessment or collection of any Taxes of any of the Partnership Entities;
(ix) none of the Partnership Entities has entered into any agreement or arrangement with any Tax authority that requires any of the Partnership Entities to take any action or to refrain from taking any action; (x) none of the Selling
Parties is a “foreign person” within the meaning of Section 1445 of the United States Internal Revenue Code of 1986, as amended (the “Code”); (xi) none of the Partnership Entities is a party to any agreement,
whether written or unwritten, providing for the payment of Taxes, payment for Tax losses, entitlements to refunds or similar Tax matters; (xii) the New Company 
  

 -13- 

 has made, or shall be eligible to make, an election pursuant to Section 754 of the Code ; and (xiii) each of
the Partnership Entities has withheld and paid all material Taxes required to be withheld by such Partnership Entity in connection with any amounts paid or owing to any employee, creditor, independent contractor or other third party. 
  
 (c) In each tax year since the formation of the Partnership up to and
including the current tax year, at least 90% of the Partnership’s gross income has been income which is “qualifying income” within the meaning of Section 7704(d) of the Code. 
  
 (d) Except for Williams GP, Inc., none of the Partnership Entities has
elected to be treated as a corporation. 
  
 (e) The only
representations and warranties given in respect of Tax matters are those contained in this Section 2.10 and none of the other representations and warranties shall be deemed to constitute, directly or indirectly, a representation and
warranty in respect of Tax matters. 
  
 SECTION 2.11. Absence
of Undisclosed Liabilities. 
  
 (a) Except as disclosed on
Schedule 2.11, none of the Partnership Entities has any indebtedness or liability, absolute or contingent, which is not shown or provided for in the New Company Financial Statements or in the consolidated financial statements of the
Partnership included in the SEC Reports, other than (i) liabilities incurred or accrued in the ordinary course of business consistent with past practice, including liens for current taxes and assessments not in default, since December 31,
2002, (ii) liabilities of the New Company that individually or in the aggregate are not material to the New Company and that are not required by GAAP to be included in the New Company Financial Statements or (iii) liabilities of the
Partnership or any of its subsidiaries that individually or in the aggregate are not material to the Partnership and its subsidiaries, taken as a whole, and that are not required by GAAP to be included in the consolidated financial statements of the
Partnership. 
  
 (b) As of the Closing Date, New Company will not
have any indebtedness, liabilities or obligations, absolute or contingent, other than indebtedness, liabilities and obligations (i) that have been incurred on behalf of the Partnership in the ordinary course of business that are properly
reimbursable by the Partnership or (ii) the responsibility for which is specifically allocated under this Agreement. 
  
 SECTION 2.12. Real and Personal Property. 
  
 Except as disclosed on Schedule 2.12(a), each of the Partnership Entities owns valid and defensible fee title to, or holds a valid leasehold
interest in, or a right-of-way or easement (collectively, the “Rights-of-Way”) through, all real property used or necessary for the conduct of the business of each such Partnership Entity as it is presently conducted (“Real
Property”), and each of the Partnership Entities has good and valid title to all of the material tangible personal property and assets which it owns and which are reflected in the New Company Financial Statements or in the consolidated
financial statements of the Partnership included in the SEC Reports or which are thereafter acquired to the date hereof (except for assets and properties sold, consumed or otherwise disposed of in the ordinary course of business consistent

  

 -14- 

 with past practices since December 31, 2002), and all such Real Property, assets and properties are owned or leased
free and clear of all Encumbrances, except for (i) Encumbrances set forth on Schedule 2.12(b), (ii) liens for current Taxes not yet due and payable or for Taxes the validity of which is being contested in good faith (and to the
extent the amount being contested exceeds $100,000, that are set forth on Schedule 2.10(b)(ii)), (iii) Encumbrances to secure indebtedness reflected in the consolidated financial statements of the Partnership included in the SEC Reports,
(iv) Encumbrances that will be discharged on or prior to the Closing Date, (v) laws, ordinances and regulations affecting building use and occupancy or reservations of interest in title (collectively, “Property
Restrictions”) imposed or promulgated by law or any Governmental Authority with respect to Real Property, including zoning regulations, provided they do not materially interfere with the present use of the applicable Real Property,
(vi) Encumbrances, Property Restrictions, Rights-of-Way and written agreements of record or copies of which have been furnished to Buyer, provided they do not materially interfere with the present use of the applicable Real Property,
(vii) mechanics’, carriers’, workmen’s, repairmen’s or similar types of liens, if any, which do not materially detract from the value of or materially interfere with the present use of any Real Property subject thereto or
affected thereby and which have arisen or been incurred in the ordinary course of business, (viii) Parent Credit Facility Liens (which shall be released prior to or at Closing) and (ix) Encumbrances and minor title defects that do not
materially detract from the value or materially interfere with the present use of the asset subject thereto (clauses (i) through (ix) above referred to collectively as “Permitted Encumbrances”). Notwithstanding the
foregoing, with respect to Rights-of-Way, the Selling Parties represent only that each of the Partnership Entities has sufficient title thereto to enable it to conduct its business as presently conducted. 
  
 SECTION 2.13. Intellectual Property and Computer Hardware. 

 
 (a) (x) Except as set forth on Schedule 2.13(a) and
for the Automated Transportation Logistics Activity System (the “ATLAS 2000 System”) and (y) except as may be identified during development of the IT Migration Plan (as defined in Section 4.11 below),
contemplated under the Transition Services Agreement and for such other matters that also would not have a Material Adverse Effect, (i) one or more of the Partnership Entities owns all right, title and interest in and to, or has a valid and
enforceable license or other right to use lawfully, all the Intellectual Property (as defined in Section 9.16) used by any Partnership Entity in connection with its business free and clear of all liens (other than the Parent Credit
Facility Liens, which shall be released at or prior to Closing, and the terms of any such license), and Schedule 2.13(a) sets forth a list of such Intellectual Property so used by the Partnership Entities; (ii) none of the Partnership
Entities has infringed or otherwise violated the Intellectual Property of any Person, (iii) to the Knowledge of the Selling Parties, no Person has infringed or otherwise violated the Intellectual Property of any of the Partnership Entities or
any Intellectual Property associated with software indicated as owned on Schedule 2.13(b), (iv) the consummation of the transactions contemplated in this Agreement and the Transaction Documents will not alter, impair or extinguish any
Intellectual Property of any of the Partnership Entities or any Intellectual Property associated with software indicated as owned on Schedule 2.13(b)) and (v) to the Knowledge of the Selling Parties, there are no agreements, judicial
orders or settlement agreements which limit or restrict any of the Partnership Entities’ rights to use any Intellectual Property or any Intellectual Property associated with software indicated as owned on Schedule 2.13(b). 
  

 -15- 

 (b) Other than the ATLAS 2000 System, a listing of all material computer software owned by or licensed to
the Selling Parties and/or its Affiliates which is used in connection with the business of the Partnership Entities as presently conducted is identified in Schedule 2.13(b). None of such owned or licensed software infringes or otherwise
violates the Intellectual Property of any Person. Such licensed software is referred to herein as the “Licensed Software.” 
  
 (c) The Selling Parties or their Affiliates own all right, title and interest to the ATLAS 2000 System and own all right, title and interest to or have a
valid and enforceable lease, license or other right to use lawfully any software listed on Schedule 2.13(b) or computer hardware associated with the ATLAS 2000 System that will be transferred to the Partnership Entities in accordance with
Section 4.11 or the ATLAS Assignment, Contribution and License Agreement. 
  
 (d) The only representations and warranties given in respect of Intellectual Property and matters and agreements relating thereto are those contained in this Section 2.13, and none of the other
representations and warranties shall be deemed to constitute, directly or indirectly, a representation and warranty in respect of Intellectual Property and matters or agreements relating thereto. 
  
 SECTION 2.14. Licenses, Permits and Governmental Approvals.

  
 Except as set forth on Schedule 2.14,
(a) each of the Partnership Entities has all material consents, licenses, permits, certificates, franchises, authorizations and approvals issued or granted to any such Partnership Entity by, and has made all material registrations and filings
with, any Governmental Authority as are necessary for the conduct of its business as currently conducted (each a “License” and, collectively, the “Licenses”); (b) each License has been issued to, and duly
obtained and fully paid for by, the holder thereof and is valid, in full force and effect, except where such invalidity or failure to be in full force and effect would not have a Material Adverse Effect, and (c) none of such Licenses will
terminate or become terminable as a result of the transactions contemplated by this Agreement or the Transaction Documents. Notwithstanding anything to the contrary in this Section 2.14, the representations and warranties in this
Section 2.14 shall not apply to (x) any right to Intellectual Property (which shall be subject to the representations in Section 2.13) or (y) any License required under applicable Environmental Law (which shall be
subject to the representations in Section 2.21(a)(v)). 
  
 SECTION 2.15. Compliance with Law. 
  
 Except
with respect to Tax matters (which are provided for in Section 2.10), Intellectual Property matters (which are provided for in Section 2.13) or environmental, health and safety matters (which are provided for in
Section 2.21) and except as set forth on Schedule 2.15 or in the SEC Reports, since February 9, 2001, the operations of each of the Partnership Entities have been conducted in material compliance with all applicable laws,
regulations, orders and other requirements of all Governmental Authorities having jurisdiction over each such Partnership Entity and its respective assets, properties and operations. Without limiting the generality of the foregoing, Parent, the
Selling Parties and the Partnership Entities have been at all times, and are, in compliance with the Consent Decree (as defined in Section 4.4). 
  

 -16- 

 SECTION 2.16. Litigation. 
  
 Except as set forth on Schedule 2.16, there are no Legal Proceedings pending or, to the Knowledge of the Selling
Parties, threatened against or involving Parent or any Affiliate thereof, including the Selling Parties and the Partnership Entities that, individually or in the aggregate, are reasonably likely to (a) have a Material Adverse Effect or
(b) materially impair or delay the ability of any of the Parent or Selling Parties to perform its obligations under this Agreement or the Transaction Documents or consummate the transactions contemplated hereby or thereby. Except as set forth
on Schedule 2.16 or as set forth in the Partnership’s Annual Report on Form 10-K for the year ended December 31, 2002 (the “2002 10-K”) under the caption “Item 3: Legal Proceedings” or in Note 16
“Commitments and Contingencies” of the Notes to Consolidated Financial Statements included under the caption “Item 8: Financial Statements and Supplementary Data,” there is no order, judgment, injunction or decree of any
Governmental Authority outstanding against Parent or any of the Selling Parties or Partnership Entities that, individually or in the aggregate, would have any effect referred to in the foregoing clauses (a) and (b). “Legal
Proceeding” shall mean any judicial, administrative or arbitral actions, suits, proceedings (public or private), investigations or governmental proceedings before any Governmental Authority. Notwithstanding the foregoing, the
representations and warranties in this Section 2.16 shall not include Legal Proceedings in respect of any Environmental Law (which shall instead be subject to the representations in Section 2.21(a)(iv)). 
  
 SECTION 2.17. Contracts. 
  
 Schedule 2.17 sets forth (other than those contracts filed as
exhibits to the 2002 10-K and subject to the dollar amount limitations of clauses (i) or (ii) below) a true and complete list of the following contracts, agreements, instruments and commitments to which any of the Partnership Entities is a
party or otherwise relating to or affecting any of its assets, properties or operations, whether written or oral: (i) contracts calling for, or that the Selling Parties expect to result in, payments by or to any of the Partnership Entities of
amounts greater than $1,000,000 per year; (ii) contracts, loan agreements, letters of credit, repurchase agreements, mortgages, security agreements, guarantees, pledge agreements, trust indentures and promissory notes and similar documents
relating to the borrowing of money or for lines of credit in any case for amounts in excess of $1,000,000; (iii) partnership or joint venture agreements; and (iv) contracts limiting or purporting to limit the ability of any of the
Partnership Entities to compete in any line of business or with any Person or in any geographic area (collectively with those contracts filed as exhibits to the 2002 10-K, “Material Contracts”). Each Material Contract is valid,
binding and enforceable against such Partnership Entity or Partnership Entities party thereto and, to the Knowledge of the Selling Parties, each of the other parties thereto in accordance with its terms, and in full force and effect on the date
hereof (and each such Material Contract will be in full force and effect on the Closing Date, except for any Material Contract that terminates in accordance with its terms) except where a failure to be so valid, binding or enforceable or in full
force and effect would not have a Material Adverse Effect. With respect to each Material Contract, no Partnership Entity party thereto and, to the Knowledge of the Selling Parties, no other party thereto is in breach or default, and to the Knowledge
of the Selling Parties, no event has occurred which with notice or lapse of time or both would constitute a breach or default, or permit termination, modification or acceleration, thereunder. 
  

 -17- 

 SECTION 2.18. Brokers. 
  
 Except as disclosed on Schedule 2.18, neither the Parent nor any of the Selling Parties has employed the services of
an investment banker, financial advisor, broker or finder in connection with this Agreement or any of the transactions contemplated hereby. 
  
 SECTION 2.19. Employees; Employee Plans. 
  
 (a) None of the Partnership Entities has, nor since February 9, 2001 has had, any employees. 
  
 (b) Except as disclosed on Schedule 2.19(b)(i), none of the
Partnership Entities sponsors, maintains or contributes to or has an obligation (secondary, contingent or otherwise) to contribute to and at any time during the past five years has sponsored, maintained or contributed to or has had an obligation to
contribute to, any “employee benefit plan,” as defined under Section 3(3) of the Employee Retirement Income Security Act of 1974, as amended (“ERISA”), or any other bonus, pension, stock option, stock purchase,
benefit, welfare, profit-sharing, retirement, disability, vacation, severance, hospitalization, insurance, incentive, deferred compensation and other similar fringe or employee benefit plans, funds, programs or arrangements, whether written or oral
(“Employee Plans”) (such Employee Plans listed on Schedule 2.19(b)(i) being the “Partnership Plans”). Each of the Partnership Plans is maintained or sponsored solely by one or more of the Partnership
Entities. Schedule 2.19(b)(ii) sets forth a true and complete list of all Employee Plans, other than Partnership Plans, which cover, are maintained for the benefit of, or relate to any or all Business Employees (as defined below) (the
“Seller Plans”). 
  
 (c) Each Partnership Plan
and Seller Plan has been maintained and operated in material compliance with its terms, the requirements of applicable law, including the Code and ERISA, and each Seller Plan intended to be “qualified” within the meaning of
Section 401(a) of the Code is qualified and has received a favorable determination letter from the IRS that covers all amendments required by applicable law to have been made to such plan as of the Closing Date or has timely filed an
application to receive a favorable determination letter as to such qualified status. 
  
 (d) No Partnership Plan is subject to ERISA and no Seller Plan covering Business Employees is a multiemployer plan, as defined in Section 3(37) of ERISA. 
  
 (e) As of the date hereof, the Partnership Entities do not have any
liability, including secondary liability, under Title IV of ERISA with respect to any plan, including, without limitation, any Seller Plan nor any liability under Section 302 of ERISA or Section 412 of the Code. 
  
 (f) Schedule 2.19(f)(i) sets forth a list showing the names of the
active employees of the Selling Parties or their Affiliates who spend fifty percent (50%) or more of their business time engaged in, or in activities related to, the business and/or affairs of any of the Partnership Entities (the
“Business Employees”) and showing which of such employees regularly devote substantially all of their business time to the business and/or affairs of the Partnership Entities. Except as set forth on Schedule 2.19(f)(ii),
there are no contracts, 
  

 -18- 

 agreements, plans or arrangements covering any Business Employee with “change of control” or similar provisions
that would be triggered as a result of the consummation of any of the transactions contemplated by this Agreement. None of the Business Employees is obligated under any contract (including licenses, covenants or commitments of any nature) or other
agreement with any Selling Party, any Partnership Entity, Parent or any other subsidiary of Parent, or to the Knowledge of the Selling Parties, subject to any judgment, decree or order of any court or administrative agency, that would interfere with
the use of such employee’s efforts to promote the interests of the Partnership Entities or Buyer or that would conflict with the business of any of the Partnership Entities as presently conducted. None of Parent, the Selling Parties nor any of
the Partnership Entities has received notice from any officer or key Business Employee or group of Business Employees, that such person(s) intends to terminate their employment. 
  
 (g) An Affiliate of the Selling Parties is a party to an amended collective bargaining agreement with the Paper,
Allied-Industrial, Chemical, and Energy Workers International Union (“PACE”) and with PACE Local 5-348 with respect to certain Business Employees as set forth on Schedule 2.19(g)(i), including all existing memorandums of
agreement related thereto (collectively, the “PACE Collective Bargaining Agreement”), a copy of which has been furnished to the Buyer. Except as disclosed on Schedule 2.19(g)(i), none of the Business Employees is covered by
any collective bargaining agreement with respect to services performed in connection with the business or operations of any of the Partnership Entities and, except as disclosed in Schedule 2.19(g)(ii), to the Knowledge of the Selling Parties,
there are not any union organizing efforts underway with respect to any such employees. 
  
 (h) Each Partnership Plan may be unilaterally terminated by a Partnership Entity at any time without liability to any Person, except as provided under the terms of the affected plan. 
  
 SECTION 2.20. Insurance. 
  
 (a) Schedule 2.20(a)(i) sets forth a summary listing of all current
liability and property insurance policies covering the properties, assets, employees, directors and/or operations of the Partnership Entities that are provided by the Parent or its Affiliates (other than the Partnership Entities) (collectively, the
“Parent Policies”). Schedule 2.20(a)(ii) sets forth a summary listing of all current liability and property insurance policies covering the properties, assets, employees, directors and/or operations of all of the Partnership
Entities that are provided by the Partnership Entities (collectively, the “Partnership Policies” and together with the Parent Policies, the “Policies”). All premiums payable under the Policies have been paid in a
timely manner and Parent (and each of its Affiliates and the Partnership Entities covered thereunder) has complied fully with the terms and conditions of all such Policies. 
  
 (b) Except as set forth in Schedule 2.20(b) hereto, all Policies are in full force and effect. None of Parent or the
Selling Parties will cancel any of the Partnership Policies or cause any of the Partnership Policies to be canceled, and each of the Partnership Policies will continue to be in full force and effect in accordance with their terms upon the
consummation of the transactions contemplated hereby. Subject to Section 4.10(b), coverage for the each of the Partnership Entities under the Parent Policies shall terminate on the Closing Date, except that 
  

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 coverage for the Partnership Entities under the excess liability policies of the Parent Policies shall terminate on
May 1, 2003 at 12:01 a.m. Central Time, and the additional insurance policies to be provided by the Partnership Entities in Schedule 2.20(b) shall be procured by the Selling Parties or Parent, as of May 1, 2003, at the cost of the
Partnership. Parent is not (nor is any Affiliate or Partnership Entity covered under any Policy) in default under any provisions of the Policies, and there is no claim by any of the Partnership Entities or any other Person pending under any of the
Policies as to which coverage with respect to any of the Partnership Entities has been questioned, denied or disputed by the underwriters or issuers of such Policies. 
  
 SECTION 2.21. Environmental; Health and Safety Matters. 
  
 (a) Except as set forth on Schedule 2.21: 
  
 (i) Each of the Partnership Entities and its operations,
activities, Real Property and assets are in material compliance with all applicable Environmental Laws (as defined in paragraph (b) below); 
  
 (ii) There are no Hazardous Materials present in, or being released to, the air, surface or sub-surface soils or in the groundwater at,
on, in, under, beneath, or in the vicinity of the activities, operations, Real Property or assets of the Partnership Entities in amounts or concentrations that are reasonably likely to result in a material liability under any Environmental Laws;

  
 (iii) None of Parent, the Selling Parties nor
any of the Partnership Entities has received any written request for information, or has received written notification that it has any liability, or is a potentially responsible party, under any Environmental Law that is material in nature with
respect to any on-site or off-site location for which liability is currently being asserted against them with respect to the activities, operations, Real Property or assets of any of the Partnership Entities; 
  
 (iv) There are no material writs, injunctions, decrees,
orders or judgments outstanding, or any Legal Proceedings pending or, to the Knowledge of the Selling Parties, threatened involving any of the Partnership Entities or the activities, operations, Real Property or assets of the Partnership Entities
relating to (A) its compliance with any Environmental Law, or (B) the release, disposal, discharge, spill, treatment, storage or recycling of Hazardous Materials (as defined in paragraph (b) below) into the environment at any on-site
or off-site location; 
  
 (v) Each of the
Partnership Entities has obtained, currently maintains and is in material compliance with all Licenses which are required under Environmental Laws for its operations, activities, Real Property and assets (collectively, “Environmental
Permits”), and all such Environmental Permits are in effect. No appeal nor any other Legal Proceeding is pending to revoke any such Environmental Permit, nor, to the Knowledge of the Selling Parties, threatened, and to the Knowledge of the
Selling Parties, no facts or circumstances exist that if unabated would be reasonably expected to result in any Environmental Permit being revoked, rescinded or withdrawn, or not being renewed or reissued on substantially the same terms; 

 

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 (vi) The Selling Parties and Parent have made available to Buyer all internal and
external audits, studies and reports on environmental matters relevant to the Partnership Entities that (A) have been retained in the files of any Selling Party or their Affiliates or the Partnership Entities and (B) were prepared or
received at any time after January 1, 1998 (including such documents that may relate to the Excluded Assets, as defined in the WPL Contribution Agreement, and any real property of the type described in Section 2.21(a)(vii) below);
and 
  
 (vii) The representations in Sections
2.21(a)(ii), (a)(iii) and (a)(iv) above, also apply to with respect to real property or assets that were owned, leased or operated by the Partnership Entities subsequent to January 1, 1998 but that are no longer owned, leased
or operated by the Partnership Entities on the date hereof, but only with respect to the periods such real property or assets were owned, leased or operated by the Partnership Entities; provided, however, that such representation with respect
to Section 2.21(a)(iv) is made only to the Knowledge of the Selling Parties. 
  
 (b) The following terms shall have the following meanings: 
  
 “Environmental Law” shall mean current local, county, state, federal, and/or foreign law (including common law), statute, code, ordinance, rule, order, judgment, decree, regulation or other legal
obligation relating to the protection of health, safety or the environment or natural resources and in effect on the date hereof, including, without limitation, the Comprehensive Environmental Response Compensation and Liability Act (42 U.S.C.
section 9601 et seq.), as amended (“CERCLA”), the Resource Conservation and Recovery Act (42 U.S.C. section 6901 et seq.), as amended (“RCRA”), the Federal Water Pollution Control Act (33 U.S.C. section 1251 et
seq.), as amended, the Clean Air Act (42 U.S.C. section 7401 et seq.), as amended, the Toxic Substances Control Act (15 U.S.C. section 2601 et seq.), as amended, the Occupational Safety and Health Act (29 U.S.C. section 651 et seq.), as amended, the
Safe Drinking Water Act (42 U.S.C. section 300(f) et seq.), as amended, analogous state, tribal or local laws, and any similar, implementing or successor law, and any amendment, rule, regulation, or directive issued thereunder, including any
determination by, or interpretation of any of the foregoing by any Governmental Authority that has the force of law. 
  
 “Hazardous Material” shall mean any substance, material or waste which is regulated by any Environmental Law as hazardous, toxic, a
pollutant, contaminant or words of similar meaning including, without limitation, petroleum, petroleum products, petroleum hydrocarbons, petroleum by-products, crude oil, and any components, fractions or derivatives thereof, methyl tertiary butyl
ether (“MTBE”), ammonia, asbestos, urea, formaldehyde and polychlorinated biphenyls. 
  
 (c) The only representations and warranties given in respect of environmental, health and safety matters and compliance with and liability under
Environmental Laws are those contained in this Section 2.21 and none of the other representations and warranties shall be deemed to constitute, directly or indirectly, a representation and warranty in respect of environmental, health and
safety matters or compliance with and liability under Environmental Laws. 
  

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 SECTION 2.22. Regulatory Matters. 
  
 (a) None of the Partnership Entities is a “public utility company,” “holding company” or
“subsidiary” or “affiliate” of a holding company as such terms are defined in the Public Utility Holding Company Act of 1935, as amended. 
  
 (b) None of the Partnership Entities is an “investment company” or a company “controlled by” an “investment company” within
the meaning of the Investment Company Act of 1940, as amended. 
  
 SECTION 2.23. Books and Records; Other Information. 
  
 The minute books and other similar records of the Partnership Entities contain true and correct copies of all actions taken at all meetings of the Partnership’s limited partners, the Boards of Directors of the Old Company and the New
Company or any committee thereof and all written consents executed in lieu of any such meetings. Complete copies of all such minute books and other similar records have been made available to Buyer. 
  
 SECTION 2.24. WPL Contribution Agreement. 
  
 None of the rights, benefits or privileges of any of the Partnership
Entities under the (i) WPL Contribution Agreement or (ii) the Corporate Guarantee, dated as of March 14, 2003, of Parent in favor of the New Company will be impaired by the consummation of the transactions contemplated by this
Agreement or the Transaction Documents. 
  
 SECTION 2.25.
Customers and Suppliers. 
  
 Except as set forth on
Schedule 2.25, since January 1, 2003, none of the Partnership Entities, the Selling Parties or Parent has received any written notice that any shipper or customer will discontinue its business relationship with any of the Partnership
Entities, and to the Knowledge of the Selling Parties, no such action has been threatened by any material shipper or customer. 
  
 SECTION 2.26. Adequacy of Assets. 
  
 Except as set forth on Schedule 2.26 or as contemplated in the Transition Services Agreement, the tangible assets to be owned by the Partnership
Entities immediately after the Closing will be adequate to permit such Partnership Entities to conduct their respective business in substantially the same manner as conducted immediately prior to the Closing. 
  
 SECTION 2.27. Excluded Assets. 
  
 All properties that are part of the Excluded Assets (as defined in
Section 1.1 of the WPL Contribution Agreement) (“Excluded Assets”) have been transferred from the applicable Partnership Entity to another entity that is not a Partnership Entity. 
  

 -22- 

 SECTION 2.28. Solvency. 
  
 Each of the Selling Parties and Parent is, and immediately after giving effect to the transactions contemplated by this
Agreement and the Transaction Documents will be Solvent. For purposes of this Section 2.28, “Solvent” means, with respect to the applicable party on any date of determination, that on such date (a) the fair value of
the property of such party is greater than the total amount of liabilities, including, without limitation, contingent liabilities of such party that would constitute liabilities under GAAP, (b) the present fair saleable value of the assets of
such party is not less than the amount that will be required to pay its debts as they become absolute and matured, taking into account the possibility of refinancing such obligations and selling assets, (c) such party does not intend to, and
does not believe that it will, incur debts or liabilities beyond such party’s ability to pay such debts as they mature taking into account the possibility of refinancing such obligations and selling assets and (d) such party is not engaged
in business or a transaction, and does not intend to engage in business or a transaction, for which such party’s property remaining after such transaction would constitute unreasonably small capital. 
  
 SECTION 2.29. Auction Process. 
  
 The Selling Parties and Parent acknowledge that (i) this Agreement and
the other Transaction Documents are the culmination of an extensive auction process, fair in substance and procedure, undertaken by the Selling Parties and Parent to identify and negotiate a transaction with a bidder who was prepared to give the
best offer for the Securities, (ii) they have selected Buyer as the successful bidder in accordance with the bidding procedures established for such auction and (iii) this Agreement constitutes the best offer for the Securities.

  
 ARTICLE III. 
 REPRESENTATIONS AND WARRANTIES OF BUYER 
  
 As of the date hereof, Buyer hereby represents and warrants to each of the Selling Parties as follows: 
  
 SECTION 3.1. Limited Partnership 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 limited partnership power and authority to own its properties and assets and to conduct its business as now conducted. Buyer is duly qualified to do business as a foreign entity
in every jurisdiction where the character of the properties owned or leased by it or the nature of the business conducted by it makes such qualifications necessary. 
  
 SECTION 3.2. Validity of Agreement; Authorization. 
  
 Buyer has the power and authority to enter into this Agreement and the Transaction Documents to which Buyer is a party and
to carry out its obligations hereunder and thereunder. The execution and delivery of this Agreement and such Transaction Documents and the performance of Buyer’s obligations hereunder and thereunder have been duly authorized by the Board of
Directors of the general partner of Buyer and no other proceedings on the part of Buyer, 
  

 -23- 

 its general partner or its owners are necessary to authorize such execution, delivery and performance. This Agreement and
the Transaction Documents to which Buyer is a party each have been (in the case of this Agreement) or will be at the Closing (in the case of such Transaction Documents) duly executed and delivered by Buyer and constitute or will constitute at the
Closing, as applicable, 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). 
  
 SECTION 3.3. No Conflict or Violation. 
  
 The execution, delivery and performance by Buyer of this Agreement and the Transaction Documents to which Buyer is a party does not and will not:
(a) violate or conflict with any provision of its or its general partner’s Organizational Documents, (b) violate any applicable provision of law, or any order, judgment or decree of any Governmental Authority, (c) 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 any of its properties or assets is subject or (d) result in the creation or imposition of any Encumbrance upon any of its properties or assets where such violations, breaches, defaults or Encumbrances 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. 
  
 SECTION 3.4. Consents and Approvals. 
  
 Except as disclosed on Schedule 3.4, no material consent, approval or authorization of, or filing, registration or
qualification with, any Governmental Authority or any other Person (on the part of Buyer), is required for Buyer to execute and deliver this Agreement or the Transaction Documents to which Buyer is a party or to perform its obligations hereunder or
thereunder. 
  
 SECTION 3.5. Financial Ability. 

 
 Buyer has (a) obtained commitments for debt financing, subject to
the satisfaction of the terms and conditions set forth in such commitment letter and (b) obtained equity financing commitments, subject to the satisfaction of terms and conditions set forth in this Agreement and in such commitment letter,
copies of which debt and equity financing commitment letters have been provided to the Selling Parties, and which collectively will, if and when such debt and equity financing is provided to Buyer pursuant to such commitment letters, provide Buyer
with sufficient immediately available funds at the Closing to pay the First Payment of the Purchase Price and to effect the transactions contemplated hereby. 
  
 SECTION 3.6. Buyer Status. 
  
 Buyer is not an employee benefit plan or other organization exempt from taxation pursuant to Section 501(a) of the Code, a non-resident alien, a
foreign corporation or other foreign Person, or a regulated investment company within the meaning of Section 851 of the Code. 
  

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 SECTION 3.7. Brokers. 
  
 Except as disclosed on Schedule 3.7, Buyer has not employed the services of an investment banker, financial advisor,
broker or finder in connection with this Agreement or any of the transactions contemplated hereby. 
  
 SECTION 3.8. Independent Investigation. 
  
 Buyer has conducted its own independent investigation, review and analysis of the business, operations, assets, liabilities, results of operations,
financial condition and prospects of each of the Partnership Entities, both individually and on a consolidated basis, which investigation, review and analysis was done by Buyer and its Affiliates and, to the extent Buyer deemed necessary or
appropriate, by Buyer’s representatives. Buyer acknowledges that it and its representatives have been provided adequate access to the personnel, properties, premises and records of each of the Partnership Entities for such purpose. 

 
 SECTION 3.9. Investment Intent; Investment Experience; Restricted
Securities. 
  
 In acquiring the Securities, Buyer is not
offering or selling, and will not offer or sell the Securities, for the Selling Parties in connection with any distribution of any of such Securities, and Buyer does not have a participation and will not participate in any such undertaking or in any
underwriting of such an undertaking except in compliance with applicable federal and state securities laws. Buyer acknowledges that it is able to fend for itself, can bear the economic risk of its investment in the Securities, and has such knowledge
and experience in financial and business matters that it is capable of evaluating the merits and risks of an investment in all of such Securities. Buyer is an “accredited investor” as such term is defined in Regulation D under the
Securities Act. Buyer understands that none of the Securities will have been registered pursuant to the Securities Act or any applicable state securities laws, that all of such Securities will be characterized as “restricted securities”
under federal securities laws and that under such laws and applicable regulations none of such Securities can be sold or otherwise disposed of without registration under the Securities Act or an exemption therefrom. 
  
 ARTICLE IV. 
 COVENANTS 
  
 SECTION 4.1. Certain Changes and Conduct of Business. 
  
 From and after the date of this Agreement and until the Closing Date, Selling Parties will use their commercially reasonable efforts to cause each of the Partnership Entities to (except as required or permitted pursuant to the terms hereof
or as set forth on Schedule 4.1) conduct its business in the ordinary course of business consistent with past practices and to use its commercially reasonable efforts to preserve intact their business organization and relationships of any
Partnership Entity with third parties. Without limiting the generality of the foregoing, without the prior written consent of Buyer (which consent will not be unreasonably withheld or delayed), except as required or permitted pursuant to the terms
of this Agreement or as set forth on Schedule 4.1, the Selling Parties will use their commercially reasonable efforts to cause each of the Partnership Entities not to: 
  

 -25- 

 (a) make any material change in the conduct of its businesses and operations; 
  
 (b) make any change in its Organizational Documents or issue any additional
equity securities or grant any option, warrant or right to acquire any equity securities or issue any security convertible into or exchangeable for its equity securities; 
  
 (c) other than Williams G.P., Inc., elect to be treated as a corporation for tax purposes; 
  
 (d) (i) incur, assume or guarantee any indebtedness for borrowed money,
issue any notes, bonds, debentures (other than Affiliate intercompany obligations incurred in the ordinary course of business or actions taken to comply with the representation in Section 2.11(b) or the covenant in
Section 4.19) or other corporate securities or grant any option, warrant or right to purchase any thereof or (ii) issue any securities convertible or exchangeable for debt securities of any of the Partnership Entities; 

 
 (e) make any sale, assignment, transfer, abandonment or other conveyance
of any of its assets or any part thereof except for dispositions of inventory or of worn-out or obsolete equipment for fair or reasonable value in the ordinary course of business consistent with past practices; 
  
 (f) subject any of its assets, or any part thereof, to any Encumbrance except
Permitted Encumbrances as may arise in the ordinary course of business consistent with past practices by operation of law; 
  
 (g) redeem, retire, purchase or otherwise acquire, directly or indirectly, any of its equity interests or declare, set aside or pay any dividends or other
distribution in respect of such Partnership Entity’s equity interests, other than (i) regular quarterly cash distributions by the Partnership from Available Cash (as defined in the Partnership Agreement) at a rate of no greater than $0.80
per unit (with a proportionate distribution to the New Company in respect of the GP Interest and any distribution on the IDRs provided for in the Partnership Agreement), (ii) dividends or other distributions by the New Company to the Selling
Parties of all or any portion of any cash distributions that the New Company may have received pursuant to clause (i), (iii) any dividends or other distributions made by any subsidiaries of the Partnership to other direct or indirect wholly
owned subsidiaries of the Partnership, or to the Partnership itself, in the ordinary course of business consistent with past practices and (iv) actions taken to comply with the representation in Section 2.11(b) or the covenant in
Section 4.19; 
  
 (h) (i) except as may be
required by applicable law, enter into, adopt or make any material amendments to or terminate any bonus, profit sharing, compensation, severance, termination, stock option, stock appreciation right, Phantom Units, restricted stock, performance unit,
stock equivalent, stock purchase, pension, retirement, deferred compensation, employment, severance or other employee benefit agreement, trust, plan, fund or other arrangement for the benefit or welfare of any officer or director of any of the
Partnership Entities or any Business Employee, except to the extent (1) such adoptions, terminations, amendments or modifications similarly affect employees of the Selling Parties or their Affiliates who are similarly situated to the Business
Employees and (2) do not in the aggregate result in a material increase in benefits 
  

 -26 

 or compensation expense to the Partnership Entities, taken as a whole; (ii) except for normal increases in the
ordinary course of business consistent with past practice that, in the aggregate, do not result in a material increase in benefits or compensation expense to the Partnership Entities, taken as a whole, increase the benefits or compensation to any
officer or director of any of the Partnership Entities or any Business Employee; or (iii) pay to any officer or director of any of the Partnership Entities or any Business Employee any benefit not permitted by any employee benefit agreement,
trust, plan, fund, or other arrangement as in effect on the date hereof; 
  
 (i) acquire any material assets or properties, except for inventory in the ordinary course of business consistent with past practices; 
  
 (j) loan or advance any amount to, or sell, transfer or lease any properties or assets to, or enter into any agreement or
arrangement with, any of its Affiliates (other than intercompany receivables in the ordinary course of business or actions taken to comply with the representation in Section 2.11(b) or the covenant in Section 4.19);

  
 (k) fail to duly and timely file or cause to be filed all
reports and returns required to be filed with any Governmental Authority and promptly pay or cause to be paid when due all Taxes, assessments and governmental charges, unless contested in good faith in appropriate proceedings; 
  
 (l) permit any insurance policy naming any of the Partnership Entities as a
beneficiary to expire or be cancelled or terminated, unless a comparable insurance policy is obtained and in effect in replacement thereof; 
  
 (m) (i) take or permit any action to be taken that would make any representation or warranty of the Selling Parties under this Agreement inaccurate
in any material respect prior to the Closing Date or (ii) omit or cause to omit to take any action necessary to prevent any such representation or warranty from being inaccurate in any material respect at any such time; 
  
 (n) issue any units except for (i) issuances of Common Units to
directors of the New Company in the ordinary course of business and consistent with past practices or (ii) issuances pursuant to commitments or obligations in respect of Phantom Units outstanding on the date hereof pursuant to the Williams
Energy Partners Long-Term Incentive Plan, as described on Schedule 2.3(d)(ii); or 
  
 (o) commit itself to do any of the foregoing. 
  
 SECTION 4.2. Access to Properties and Records. 
  
 (a) Each of the Selling Parties shall afford, and shall cause each of the Partnership Entities (and to the extent reasonably necessary, Parent) to afford, to Buyer and Buyer’s accountants, counsel and
representatives (collectively “Buyer Representatives”), upon reasonable advance notice to the Selling Parties or their financial adviser, reasonable access during normal business hours throughout the period commencing on the date
hereof and ending on the Closing Date (or the earlier termination of this Agreement pursuant to Article VII hereof) to all personnel, properties, books, contracts, and records of each of the Partnership Entities and 
  

 -27- 

 their agents, including legal representatives, accountants and environmental and engineering consultants (provided that
the Selling Parties or their designee(s) may, in the sole discretion of the Selling Parties, accompany the person(s) to whom such access is provided as contemplated herein) and, during such period, shall furnish promptly to Buyer all information
concerning the business, properties, liabilities and personnel of any of the Partnership Entities as Buyer may request, provided that no investigation or receipt of information pursuant to this Section 4.2 shall affect any representation
or warranty of the Selling Parties or Buyer’s reliance thereon. Additionally, Buyer shall hold in confidence all such information on the terms and subject to the conditions contained in the Confidentiality Agreement (as defined in
Section 9.16). Buyer shall have no right of access to, and the Selling Parties shall have no obligation to provide to Buyer, (1) bids received from other Persons in connection with the transactions contemplated by this Agreement and
information and analysis (including financial analysis) relating to such bids or (2) any information the disclosure of which the Selling Parties have concluded may jeopardize any privilege available to the Selling Parties or any of the
Partnership Entities relating to such information or would cause any of such entities to breach a confidentiality obligation. Buyer agrees that if Buyer or its authorized representatives receive, or if the information (whether in electronic mail
format, on computer hard drives or otherwise) held by any of the Partnership Entities as of the Closing includes information that relates to the business operations or other strategic matters of the Parent or any of the Selling Parties or any of
their Affiliates (other than the Partnership Entities) such information shall be held in confidence on the terms and subject to the conditions contained in the Confidentiality Agreement, but the term of the restriction on the disclosure and use of
such information shall continue in effect as to such information for a period of two years from the Closing. Buyer further agrees that if any of the Selling Parties or Partnership Entities inadvertently furnishes to Buyer copies of or access to
information that is subject to clause (2) of the second preceding sentence, Buyer will, upon the Selling Parties’ request, promptly return the same to the Selling Parties together with any and all extracts therefrom or notes pertaining
thereto (whether in electronic or other format). Buyer shall indemnify, defend, and hold harmless the Selling Parties and their Affiliates from and against any “Losses” (as defined in Section 8.2) asserted against or
suffered by the Seller Indemnified Parties (as defined in Section 8.2) relating to, resulting from, or arising out of any personal injury to, or property damage directly caused by, any Buyer Representative during any site visit,
examination or investigation conducted in accordance with this Section 4.2(a), except where such personal injury or property damage results from the gross negligence or willful misconduct of the Selling Parties, Parent, the Partnership
Entities or any employee or agent thereof. 
  
 (b) Buyer agrees
that it shall preserve and keep all books and records relating to the business or operations of the Partnership Entities on or before the Closing Date in Buyer’s possession for a period of at least six years from the Closing Date.
Notwithstanding the foregoing, Buyer agrees that it shall preserve and keep all books and records of the Partnership Entities relating to any audit or investigation instituted by a Governmental Authority or any litigation (whether or not existing on
the Closing Date) if it is reasonably likely that such investigation or litigation may relate to matters occurring prior to the Closing, without regard to the six-year period set forth in this Section 4.2(b). 
  

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 SECTION 4.3. Employee Matters. 
  
 (a) Buyer intends to offer, or cause an Affiliate to offer, employment to substantially all Business Employees who are
identified on Schedule 2.19(f)(i) as full-time Business Employees and may offer employment to such Business Employees who are identified as less than full-time as it may choose, based on the recommendation of the key management of the
Partnership Entities, in either case, on terms and conditions for each Business Employee as are substantially comparable, in the aggregate, to industry standards for similarly situated employees located in the same geographic region, as determined
in good faith by Buyer, such employment to commence as contemplated in accordance with the Transition Services Agreement. In addition, within fifteen (15) days after the execution of this Agreement, representatives of Buyer and the Selling
Parties shall meet to identify employees of the Selling Parties or any of their Affiliates who are not Business Employees and to whom Buyer and the Selling Parties agree that Buyer may make offers of employment (collectively, the “Additional
Employees”). The Selling Parties agree that if any of the Additional Employees are covered by employee benefit plans or programs of Parent or any of its Affiliates other than Seller Plans, the Selling Parties shall provide Buyer with copies
of such plans or programs as promptly as practicable after such Additional Employees are identified. Any such offers of employment made by the Buyer to an Additional Employee shall be on at least the same basis as the offers Buyer makes to Business
Employees. Promptly following such agreement regarding the Additional Employees, the Selling Parties shall prepare and submit to Buyer a list of the Additional Employees. Buyer or one or more of its Affiliates shall use commercially reasonable
efforts to notify Selling Parties of the names of those Business Employees and Additional Employees that accept such employment offers from Buyer or any other Affiliate of Buyer prior to the Closing Date and in no event more than fifteen
(15) days after the Closing Date. The Selling Parties and their Affiliates shall not discourage any Business Employee or Additional Employee to whom an offer of employment is made by Buyer or an Affiliate of Buyer from accepting such offer.
Business Employees and Additional Employees who accept employment from Buyer and become employees of Buyer or an Affiliate thereof in accordance with the Transition Services Agreement are referred to herein as “Transferred
Employees.” 
  
 (b) Business Employees who are covered by
the PACE Collective Bargaining Agreement are identified on Schedule 2.19(g)(i) (the “Represented Employees”). At the time the first Represented Employee becomes a Transferred Employee (the “Represented Employee
Transfer Date”), Buyer agrees to (i) comply with all legal requirements that may be applicable as a result of the Transferred Employees who are Represented Employees being represented by any labor organization, (ii) recognize PACE
as the exclusive bargaining unit for the Transferred Employees who are Represented Employees and (iii) assume (and otherwise adopt) all rights and obligations of the Selling Parties under the PACE Collective Bargaining Agreement with respect to
Transferred Employees who are Represented Employees. Notwithstanding anything herein to the contrary, Buyer shall offer employment, commencing in accordance with the Transition Services Agreement, to all Represented Employees. 
  
 (c) Effective as of the Represented Employee Transfer Date, Buyer shall
assume the Williams Pipe Line Company Pension Plan for Hourly Employees (the “Pension Plan”). On or as soon as practicable thereafter, the Selling Parties or their applicable Affiliate shall cause the assets of the Pension Plan held
under the current master trust to be transferred to a 
  

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 trust established or maintained by the Buyer or one of its Affiliates. Such transfer shall be made within one business
day after any valuation date of the current master trust and shall be made in cash, marketable securities or other property acceptable to Buyer. Prior to such transfer of assets, the Selling Parties shall make a contribution to the Pension Plan in
an amount necessary to cause the accrued benefit obligations under FASB 87 with respect to the Pension Plan to be fully funded as of the last day of the month immediately preceding the month that includes the Represented Employee Transfer Date using
actuarial assumptions and factors used for FASB 87 reporting purposes in the year that includes the Represented Employee Transfer Date, which contribution shall also include the amount necessary to satisfy in full the minimum funding contribution
liability for the 2002 plan year and the estimated minimum funding contribution liability for the 2003 plan year, as prorated for the partial 2003 plan year through Represented Employee Transfer Date, whether or not such 2002 and 2003 plan year
funding contributions are then due. 
  
 (d) The Selling
Parties’ shall retain the obligation for providing retiree medical and retiree life benefits to all employees and former employees (including their eligible dependents and beneficiaries) of the Selling Parties and their Affiliates other than
Transferred Employees. On or as soon as practicable after the Represented Employee Transfer Date, the Selling Parties shall transfer to Buyer sponsorship of the Voluntary Employee Beneficiary Association (“VEBA”) trust established
or maintained for the Represented Employees’ retiree medical, including all assets of such trust. 
  
 (e) The Selling Parties’ shall retain the obligation for providing long-term disability benefits to (i) those Represented Employees who,
immediately prior to the Represented Employee Transfer Date, are receiving benefits under The Williams Companies, Inc. Long-Term Disability Plan (but the parties hereto agree that such retained obligation shall not include the obligation under the
Pension Plan in respect of such totally disabled persons to continue to accrue benefits, which obligation is to be assumed by Buyer as of the Represented Employee Transfer Date under Section 4.3(c) above) and (ii) those Represented
Employees who become totally disabled on or after the Represented Employee Transfer Date as a result of an injury or illness occurring prior to the Represented Employee Transfer Date. 
  
 (f) Transferred Employees shall participate in employee benefit plans and programs of the Buyer, which shall provide
benefits that are substantially comparable, in the aggregate, to industry standards for similarly situated employees located in the same geographic region, as determined in good faith by Buyer, and that, subject to the terms of the PACE Collective
Bargaining Agreement and Section 4.3(r), shall cover each Transferred Employee effective as of the date each such employee becomes a Transferred Employee (each such date, an “Employee Transfer Date”). 
  
 (g) Each Transferred Employee shall, without duplication of benefits, be
given credit for all service with Selling Parties or their Affiliates prior to the Employee Transfer Date, using the same methodology used by such parties as of immediately prior to such date for crediting service and determining levels of benefits
under the Seller Plans, (i) under all employee benefit plans, programs and arrangements maintained by or contributed to by the Buyer in which a Transferred Employee becomes a participant for purposes of eligibility to participate, vesting and
determination of level of benefits (excluding, however, benefit accrual under any defined benefit plans), and (ii) for purposes of calculating the amount of each Transferred Employee’s severance benefits, if any. 
  

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 (h) With respect to the plan year during which an Employee Transfer Date occurs, Buyer will
(i) waive all limitations as to preexisting conditions exclusions and waiting periods with respect to participation and coverage requirements applicable to the Transferred Employees under any medical, dental and life insurance benefit plans
that such employees may be eligible to participate in after his or her Employee Transfer Date, other than limitations or waiting periods that are already in effect with respect to such employee and that have not been satisfied as of his or her
Employee Transfer Date under any welfare plan maintained for the Transferred Employee immediately prior to his or her Employee Transfer Date, and (ii) provide each Transferred Employee with credit for any co-payments and deductibles paid prior
to his or her Employee Transfer Date in satisfying any applicable deductible or out-of-pocket requirements under any welfare plans that such employee is eligible to participate in after his or her Employee Transfer Date. 
  
 (i) Effective as of each Employee Transfer Date, each Transferred Employee
shall become fully vested in his or her account balances in any defined contribution or 401(k) Plan maintained by the Selling Parties or their Affiliates on behalf of such Transferred Employee (the “Seller Savings Plan”) and
distributions of such account balances shall be made available to each such Transferred Employee as soon as practicable following his or her Employee Transfer Date, in accordance with the provisions of the Seller Savings Plan and applicable law.
Participants shall be permitted to elect rollovers of such accounts (excluding after-tax amounts) in cash to a defined contribution or 401(k) Plan maintained by Buyer (the “Buyer Savings Plan”). Pending such distribution or
rollover, the Seller Savings Plan shall permit each Transferred Employee with a loan outstanding under the Seller Savings Plan to continue to be able to repay such loan. Notwithstanding the foregoing, if requested by Buyer and at Buyer’s sole
cost, the Selling Parties shall cause a spinoff of the accounts of the Transferred Employees to a Buyer 401(k) plan on such terms as reasonably requested by Buyer. 
  
 (j) As of the occurrence of the first Employee Transfer Date, Buyer shall have in effect flexible spending reimbursement
accounts under a cafeteria plan qualifying under Section 125 of the Code (the “Buyer 125 Plan”) that provides benefits to the Transferred Employees that are substantially identical in all material respects to those provided by
the flexible spending reimbursement accounts under the cafeteria plan in which the Transferred Employees are eligible to participate immediately prior to such date (the “Seller 125 Plan”). Buyer agrees to cause the Buyer 125 Plan to
accept a spin-off of the flexible spending reimbursement accounts from the Seller 125 Plan and to honor and continue through the end of the calendar year in which an Employee Transfer Date occurs the elections made by each Transferred Employee under
the Seller 125 Plan in respect of the flexible spending reimbursement accounts that are in effect immediately prior to the Employee Transfer Date. As soon as practicable following an Employee Transfer Date, the Selling Parties shall cause to be
transferred to Buyer an amount in cash equal to the excess of the aggregate accumulated contributions to the flexible spending reimbursement accounts made during the year in which an Employee Transfer Date occurs by the applicable Transferred
Employee over the aggregate reimbursement payouts made for such year from such accounts to such Transferred Employee. If the aggregate reimbursement payouts from the flexible reimbursement accounts made during 
  

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 the year in which an Employee Transfer Date occurs made to the applicable Transferred Employee exceed the aggregate
accumulated contributions to such accounts for such year by the applicable Transferred Employee, Buyer shall cause such excess to be transferred to the Selling Parties as soon as practicable following the applicable Employee Transfer Date. On and
after an Employee Transfer Date, Buyer shall assume and be solely responsible for all claims by the applicable Transferred Employee under the Seller 125 Plan, whether incurred prior to, on or after the applicable Employee Transfer Date, that have
not been paid in full as of the applicable Employee Transfer Date. 
  
 (k) Buyer and the Selling Parties agree to cooperate as necessary to effectuate the provisions of this Section 4.3 and to ensure an orderly transition of benefits coverage with respect to the Transferred Employees from the
Seller Plans to Buyer’s plans. 
  
 (l) Buyer shall assume all
paid-time-off obligations of the Selling Parties and their Affiliates with respect to each Transferred Employee, and each Transferred Employee shall, without duplication of benefits, be given credit for all accrued but unused paid-time-off under
Selling Parties or their Affiliate’s paid-time-off program as of such Transferred Employee’s Employee Transfer Date, using the same methodology used by the Selling Parties or their Affiliates immediately prior to such Employee Transfer
Date for crediting service and determining the amount of such paid-time-off benefits. Buyer shall also assume the full obligation to pay all or any portion of any bonus or incentive plan benefit for the years 2002 and 2003, to the extent unpaid as
of an Employee Transfer Date, with respect to any Transferred Employee; provided, however, the Selling Parties will promptly reimburse Buyer for (i) any portion of any bonus paid after the applicable Employee Transfer Date for the year
2002, to the extent that the bonus so paid does not exceed the unpaid portion of the bonus declared for such period in respect of such Transferred Employee and (ii) for the allocable portion of any bonus paid after the applicable Employee
Transfer Date for the year 2003 to the extent such bonus is included in general and administrative expenses of the Partnership and not in operating and maintenance expenses, such allocable portion to be equal to the product of (A) a fraction,
of which (I) the numerator is the number of days in the period from and including January 1, 2003 to but excluding the Closing Date, and (II) the denominator is 365, times (B) the amount of such bonus included in general and
administrative expenses of the Partnership that is so paid for the year 2003 to such Transferred Employee, provided, that in no event shall the amount used in this subclause (B) exceed the 2003 target bonus amount established by Parent
for such Transferred Employee. 
  
 (m) If Buyer terminates the
employment of a Transferred Employee at any time between his or her Employee Transfer Date and the first anniversary of such date for a reason other than cause, but excluding any termination in which such employee is offered substantially comparable
continued employment by another Person, Buyer shall provide such Transferred Employee who is not a Represented Employee with a severance benefit equal to the greater of (i) the benefit provided under Buyer’s severance plan or program and
(ii) a sum equal to two weeks of pay for every year of service with a minimum of six weeks and a maximum of fifty-two weeks total severance benefit. 
  

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 (n) For a period of one year after the Closing Date: 
  
 (i) except as contemplated by the Transition Services
Agreement, neither Buyer nor any of its Affiliates shall, directly or indirectly, (A) induce any employee of any of the Selling Parties or their Affiliates (other than the Transferred Employees) to leave the employ of any such Selling Party or
Affiliate thereof or (B) employ or otherwise engage as an employee, independent contractor or otherwise any such employee, except that Buyer and its Affiliates shall not be precluded from hiring any such employee who (y) initiates
discussions regarding such employment without any direct or indirect solicitation by Buyer or its Affiliates or (z) responds to any public advertisement placed by Buyer or its Affiliates; and 
  
 (ii) neither the Selling Parties nor any of their Affiliates
shall, directly or indirectly, (A) induce any of the Transferred Employees to leave the employ of any Partnership Entity or Buyer or any of its Affiliates or (B) employ or otherwise engage as an employee, independent contractor or
otherwise any such Transferred Employee, except that the Selling Parties and their Affiliates shall not be precluded from hiring any such employee who (y) initiates discussions regarding such employment without any direct or indirect
solicitation by the Selling Parties or their Affiliates or (z) responds to any public advertisement placed by the Selling Parties or their Affiliates. 
  
 (o) Effective as of each Employee Transfer Date, the applicable Transferred Employee who is not a Represented Employee shall become fully vested in his or
her accrued benefits under The Williams Companies, Inc. Pension Plan maintained by the Selling Parties or their Affiliates. 
  
 (p) The Selling Parties shall bear the full and sole responsibility and liability for providing any notice to the Selling Parties’ or Parent’s
employees which may be required pursuant to the Federal Working Adjustment and Retraining Notification Act of 1988 (“WARN”) or any similar applicable law for any employment loss which occurs in connection with this transaction and
shall hold Buyer and its Affiliates (including the Partnership Entities) harmless from and against any and all losses associated with or related to the Selling Parties failure to comply with WARN or any similar law with respect to such employees.
Notwithstanding the foregoing, to the extent that WARN liability on the part of the Selling Parties or Parent is triggered with respect to a Business Employee due to Buyer or one or more of its Affiliates terminating the employment of one or more
Transferred Employees after the applicable Employee Transfer Date, then any WARN liability that otherwise would be attributed to the Selling Parties or Parent with respect to a Business Employee shall instead be the sole responsibility of the Buyer.

  
 (q) Notwithstanding anything in this Agreement to the
contrary, Buyer and its Affiliates (including the Partnership Entities) are not assuming any obligation or liability of the Selling Parties or any of their Affiliates, including any Seller Plan, or any liability thereunder, to any Transferred
Employee or other Person except to the extent such liability or obligation is specifically assumed pursuant to this Section 4.3. 
  

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 (r) Nothing in this Section 4.3 shall prevent Buyer or an Affiliate thereof from amending or
terminating, in its sole discretion, any employee benefit plan of Buyer or an Affiliate thereof at any time following the Closing, subject to the provisions of the PACE Collective Bargaining Agreement and Section 4.3(m) above;
provided, however, that Buyer agrees to indemnify and protect the Seller Indemnified Parties for any liability they may have as a result of amending or terminating any employee benefit plan of Buyer or an Affiliate thereof following the
Closing. 
  
 SECTION 4.4. Consents and Approvals.

  
 (a) On or as promptly as practicable after the date
hereof, the Selling Parties shall cause Parent to deliver notice (a copy of which will be furnished to Buyer) to the Federal Trade Commission, as required under that certain order, dated June 17, 1998, to which Parent is subject (the
“Consent Decree”). The Selling Parties and Buyer shall each use all commercially reasonable efforts to obtain, and in the case of the Selling Parties, cause Parent and the Partnership Entities to obtain, all necessary consents,
waivers, authorizations and approvals of all Governmental Authorities and of all other Persons required in connection with the execution, delivery and performance by such party of this Agreement and will cooperate fully with the other party in
promptly seeking to obtain all such authorizations, consents, orders, and approvals, giving such notices, and making such filings. If the parties agree that a filing is required, each party shall (i) file or cause to be filed, as promptly as
practicable (and in any event within five (5) business days after the execution and delivery of this Agreement), with the Federal Trade Commission and the United States Department of Justice, all reports and other documents required to be filed
by such party under the Hart-Scott-Rodino Antitrust Improvements Act of 1976 (the “HSR Act”) concerning the transactions contemplated hereby and (ii) promptly comply with or cause to be complied with any requests by the Federal
Trade Commission or the United States Department of Justice for additional information concerning such transactions, in each case so that the waiting period applicable to this Agreement and the transactions contemplated hereby under the HSR Act
shall expire as soon as practicable after the execution and delivery of this Agreement. Each party agrees to request, and to cooperate with the other party in requesting, early termination of any applicable waiting period under the HSR Act. The
costs of any filing fees required in connection with any HSR filing shall be borne equally between Buyer, on the on hand, and the Selling Parties, on the other hand; provided, however, that any and all costs and expenses otherwise incurred by
any of the parties in connection with obtaining any necessary consents, waivers, authorizations and approvals hereunder shall be borne solely by the party required to obtain or deliver such consents, waivers, authorizations and approvals;
provided, further, any and all costs and expenses incurred by any of the parties in connection with obtaining the waivers, consents and amendments referred to in Section 5.13 hereunder shall be borne by the Selling Parties.

  
 (b) Without limiting the generality of the parties’
undertakings pursuant to Section 4.6, the parties shall: 
  
 (i) use commercially reasonable efforts to prevent the entry in a judicial or administrative proceeding brought under any antitrust law by the Federal Trade Commission, the United States Department of Justice or any
other party of a permanent or preliminary injunction or other order that would make consummation of the transactions contemplated by this Agreement unlawful or that would prevent or delay such consummation; 
  

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 (ii) take promptly, in the event that such an injunction or order has been issued in such
a proceeding, any and all reasonable steps, including the appeal thereof and the posting of a bond necessary to vacate, modify, or suspend such injunction or order, so as to permit such consummation on a schedule as close as possible to that
contemplated by this Agreement; and 
  
 (iii) not
take a position or agree to a settlement that will or would reasonably be expected to have a material adverse effect on the Buyer or a material adverse effect on the Selling Parties or otherwise prejudice the Buyer’s or the Selling
Parties’ intent with respect to the transactions contemplated hereby. 
  
 (c) If the transfer of any instrument, contract, license, lease, permit, or other document to Buyer hereunder shall require the consent of any party thereto other than the Selling Parties, Parent or the Old Company,
then this Agreement shall not constitute an agreement to assign the same, and such item shall not be assigned to or assumed by Buyer, if an actual or attempted assignment thereof would constitute a breach thereof or default thereunder. In such case,
the parties shall cooperate and each shall use commercially reasonable efforts to obtain such consents of such other parties to the extent required and, if and when any such consents are obtained, to transfer the applicable instrument, contract,
license, lease, permit, or other document. If any such consent cannot be obtained, the Selling Parties shall cooperate in any reasonable arrangement designed to obtain for Buyer all benefits, privileges and obligations of the applicable instrument,
contract, license, lease, permit, or document, including, without limitation, possession, use, risk of loss, potential for gain and dominion, control and demand. 
  
 (d) During the term of this Agreement and prior to the Closing, Buyer will negotiate in good faith and use its commercially
reasonable efforts to finalize the terms and conditions of the debt financing described in Section 3.5, including without limitation, the execution and delivery of definitive agreements for same containing terms and conditions to funding
that are consistent in all material respects with the commitment therefor referenced in Section 3.5, so that Buyer will have the immediately available funds to pay the First Payment of the Purchase Price at Closing; provided,
however, Buyer (or its Affiliates) shall not be required to make any representation in such definitive agreements relating to the Partnership Entities that it is not true. Buyer will notify the Selling Parties, upon request, of the status of the
negotiations for the debt financing described in Section 3.5. 
  
 SECTION 4.5. Further Assurances. 
  
 Upon the request of Buyer at any time on or after the Closing Date, each of the Selling Parties will promptly execute and deliver, or cause Parent to execute and deliver, such further instruments of assignment,
transfer, conveyance, endorsement, direction or authorization and other documents as Buyer or its counsel may reasonably request in order to perfect title of Buyer and its successors and assigns to the Securities or otherwise to effectuate the
purposes of this Agreement. 
  

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 SECTION 4.6. Commercially Reasonable Efforts. 
  
 Upon the terms and subject to the conditions of this Agreement, each of the
parties hereto will use all commercially reasonable efforts to take, or cause to be taken, all action, and to do, or cause to be done, all things necessary, proper or advisable consistent with applicable law to consummate and make effective in the
most expeditious manner practicable the transactions contemplated hereby. Without limiting the generality of the foregoing, upon the reasonable request of Buyer from time to time, the Selling Parties shall use their commercially reasonable efforts
to assist Buyer in meeting the condition referred to in Section 5.9. 
  
 SECTION 4.7. Notice of Breach. 
  
 Each party shall promptly give to the other parties written notice with particularity upon having knowledge of any matter that would constitute a breach by such party of any representation, warranty, agreement or covenant of such party
contained in this Agreement, including, without limitation, the Selling Parties’ representations in Article II. The Selling Parties shall have the obligation prior to the Closing to supplement the Disclosure Schedule in a prompt manner
with respect to any matter that would have been required to be set forth on or described in such Disclosure Schedule (a “Disclosure Schedule Update”). Any such supplemental disclosure (i) will not be deemed to have been
disclosed as of the date of this Agreement for purposes of determining whether the conditions set forth in Article V have been satisfied (unless such supplemental disclosure relates to an update made in response to
Section 2.21(a)(vii)), and (ii) shall not be deemed to have cured any breach of representation, warranty, covenant or agreement relating to the matters set forth in such update for purposes of indemnification pursuant to Article
VIII, unless such supplemental disclosure relates to an update to Schedule 2.25 hereto by reason of an action taken by a customer or shipper after the date hereof, in which case a breach of the representation in Section 2.25
shall not be deemed to have occurred for purposes of indemnification pursuant to Article VIII. 
  
 SECTION 4.8. Confidential Information. 
  
 (a) For two (2) years after the Closing, the Selling Parties and their Affiliates shall not, directly or indirectly, disclose to any Person any
information 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 Partnership Entities; provided, however, that any such
confidential information received, obtained or created in the course of defending any claim or action under Article VIII hereof shall not be disclosed for a period of two (2) years following the resolution of such claim or action.
Notwithstanding the foregoing, the Selling Parties may disclose any information relating to the business and operations of the Partnership Entities (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. 
  
 (b) Except as consented to by Buyer in writing, none of the Selling Parties and their Affiliates shall release any Person from any Bidder Confidentiality
Agreement (as defined below) now existing with respect to the Securities or Partnership Entities or waive or amend any provision thereof. After the Closing Date, the Selling Parties shall use commercially reasonable 
  

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 efforts to have all confidential information either returned to the Selling Parties or destroyed. Furthermore, if any
parties to the Bidder Confidentiality Agreements breach the terms of their respective agreement, upon the request of Buyer, the Selling Parties and Parent shall cooperate with Buyer to enforce the terms of such Bidder Confidentiality Agreements at
Buyer’s cost and expense. The term “Bidder Confidentiality Agreements” shall mean the confidentiality agreements between any of Parent, the Selling Parties or any of their Affiliates or advisors and prospective purchasers
(other than Buyer or its Affiliates) of the Securities. 
  
 SECTION 4.9. Tax Covenants. 
  
 (a) The Selling
Parties shall cause the Partnership Entities to prepare and file all Tax Returns relating to any of the Partnership Entities with the appropriate federal, state, local and foreign governmental agencies and cause the Partnership Entities to pay the
Taxes shown to be due thereon, for which Tax Returns are due and Taxes are payable prior to the Closing Date. For periods ending on or prior to the Closing Date, but for which Tax Returns are not due and Taxes are not payable as of the Closing Date,
(i) the Selling Parties shall prepare and submit to Buyer for review, signature, and filing all such Tax Returns required to be filed by the New Company, and, at such time, the Selling Parties shall pay to the Buyer the Taxes shown to be due
thereon, and (ii) the Buyer shall cause the Partnership Entities (other than the New Company) to prepare and file all Tax Returns and cause the Partnership Entities to pay the Taxes shown to be due thereon. 
  
 (b) Buyer shall cause the Partnership Entities to prepare all Tax Returns
relating to the Partnership Entities for periods beginning on or before the Closing Date and ending after the Closing Date. With respect to any such Tax Return relating to the New Company, Buyer shall determine (by an interim closing of the books as
of the Closing Date except for ad valorem and property taxes owed or owing by the New Company, which shall be prorated on a daily basis) the Tax that would have been due with respect to the period covered by such Tax Return if such taxable period
ended on and included the Closing Date (the “Pre-Closing Tax”). Not later than 30 days prior to the due date of each such Tax Return, Buyer shall deliver a copy of such Tax Return to the Selling Parties together with a statement of
the excess, if any, of the Pre-Closing Tax over the amount set up as a liability for such Tax on the financial statements of the New Company. Buyer shall make or cause to be made such changes in such Tax Returns or the statement of excess, if any,
as the Selling Parties may reasonably request, which changes shall be subject to Buyer’s approval, which shall not be unreasonably withheld. Not later than five days prior to the due date of such Tax Return, the Selling Parties shall pay to
Buyer the amount of such excess. Upon receipt thereof, Buyer shall file or cause to be filed such Tax Return and shall pay all Taxes shown to be due thereon. 
  
 (c) The Selling Parties will cause any tax sharing agreement or similar arrangement with respect to Taxes involving any of the Partnership Entities to be
terminated effective as of the Closing Date, to the extent any such agreement or arrangement relates to any such entity, and after the Closing Date none of the Partnership Entities shall have any obligation under any such agreement or arrangement
for any past, present or future period. 
  
 (d) All excise, sales,
use, transfer (including real property transfer or gains), stamp, documentary, filing, recordation and other similar taxes, together with any interest, 
  

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 additions or penalties with respect thereto and any interest in respect of such additions or penalties, resulting
directly from the transactions contemplated by this Agreement (the “Transfer Taxes”), shall be borne by the Selling Parties. Notwithstanding anything to the contrary in this Section 4.9, any Tax Returns that must be
filed in connection with Transfer Taxes shall be prepared and filed when due by the party primarily or customarily responsible under the applicable local law for filing such Tax Returns, and such party will use commercially reasonable efforts to
provide such Tax Returns to the other party at least ten days prior to the due date for such Tax Returns. 
  
 (e) Notwithstanding anything to the contrary contained herein, any franchise Tax paid or payable with respect to any of the Partnership Entities shall be
allocated to the taxable period during which the right to do business is obtained by the payment of the franchise Tax. 
  
 SECTION 4.10. Insurance, Bonds and Collateral. 
  
 (a) Buyer shall use its commercially reasonable efforts to take, or cause the Partnership Entities to take, such actions as may be necessary or
appropriate so that all surety bonds, letters of credit, and cash collateral issued in respect of any of the Partnership Entities and listed on Schedule 4.10(a) (collectively, the “Bonds”) are replaced as soon as practicable
and in no event later than 60 days after the Closing Date. Buyer shall indemnify, defend and hold harmless the Selling Parties and their Affiliates for any and all Losses (in each case without deduction or set off) incurred on account of such Bonds
after the Closing Date. 
  
 (b) Notwithstanding the termination of
coverage on the Closing Date (or May 1, 2003, in the case of excess liability policies of the Parent Policies) for each of the Partnership Entities under the Parent Policies described in Section 2.20(b), the Selling Parties shall
take or cause the Parent to take appropriate action to ensure that upon and after the Closing (i) each of the Partnership Entities shall continue to be covered by such Parent Policies for claims relating to or arising from events or occurrences
happening prior to such termination of coverage and, with respect to “claims made” policies, which are reported prior to such termination of coverage, to the same extent as each such entity was covered prior to Closing under each of such
Parent Policies, and (ii) each of the Partnership Entities is named as an insured or additional insured party under such Parent Policies in respect of such claims. After the Closing Date, the Selling Parties or Parent shall continue to manage
the claims described in the immediately preceding sentence and shall be responsible for all costs on account of such claims, including but not limited to deductibles and retention and third-party administration charges. For a period of five years
after the Closing Date, the Selling Parties shall provide or cause Parent to provide the Buyer, as reasonably requested by the Buyer, historical insurance carrier loss-runs and internally administered loss-runs in respect of the Partnership
Entities. 
  
 (c) Without limiting the generality of
Section 4.10(b), after the Closing Date, Parent or its Affiliates (other than the Partnership Entities) shall continue to manage all workers’ compensation claims of all Transferred Employees that are known and reported on or prior
to the Closing Date, or that are covered under the workers compensation policy provided by the Parent. The Selling Parties shall be responsible for all costs on account of such claims, including but not limited to deductibles and third party
administrator charges. 
  

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 SECTION 4.11. Information Technology. 
  
 (a) ATLAS Contribution and License Back Agreement. The Selling
Parties shall, or shall cause one or more of their Affiliates to, assign and transfer, at or immediately prior to Closing, all right, title and interest to the ATLAS 2000 System, any additional software related thereto and any computer hardware
associated therewith to the Partnership Entity or Partnership Entities, as the case may be, designated by the Buyer pursuant to an Assignment, Contribution and License Agreement, in substantially the form attached hereto as Exhibit
1.2(a)(iv)(3) (the “ATLAS Assignment, Contribution and License Agreement”). The ATLAS Assignment, Contribution and License Agreement shall provide for, among other things, Buyer to cause the applicable Partnership Entity or
Entities to grant WES a license, which WES may sublicense to Williams Bio-Energy LLC, to use, copy, modify, enhance and upgrade the ATLAS 2000 System to support any business owned or operated by Williams Bio-Energy LLC for so long as Williams
Bio-Energy LLC continues to use the ATLAS 2000 System. 
  
 (b)
IT Migration Team and Migration Assets. The parties shall each designate up to three (3) representatives to a migration team (“IT Migration Team”) that shall be responsible for determining the software and computer
hardware (“IT Assets”) that will be necessary for Buyer to continue operations of the Partnership Entities in substantially as efficient a manner in which such operations are conducted by the Partnership Entities as of the Closing
Date, taking into account, as appropriate, the impact on such items as may be necessary in light of the reduced size and scale of Buyer and the Partnership Entities immediately after the Closing as compared to the size and scale (and corresponding
needs) of Parent and its Affiliates (including the Partnership Entities) immediately before the Closing. The IT Migration Team shall identify (i) those certain IT Assets to be transferred or assigned to the Partnership Entities by the Selling
Parties or their Affiliates (which IT Assets shall include, subject to the approval of the Partnership Entities, all computer hardware that is not wholly owned by any of the Partnership Entities, but that is owned by Parent or any of its Affiliates,
and that is (A) not required for the on-going business of Parent and its subsidiaries (other than the Partnership Entities) and (B) is used more than 50% of the time or for the benefit of Transferred Employees) (the “Transferred
Assets”) and (ii) those certain IT Assets to be purchased, leased or licensed by or for the benefit of the Partnership Entities as a substitute for IT Assets retained by the Selling Parties or their Affiliates, subject to the
parameters set forth in the immediately preceding sentence (the “Substituted Assets,” and collectively with Transferred Assets, the “Migration Assets”); provided, however, the Selling Parties shall retain the
sole discretion as to whether any IT Asset owned, licensed or leased by the Selling Parties or their Affiliates is transferred or assigned to the Partnership Entities as a Transferred Asset, including without limitation the IT Assets listed on
Schedule 2.13(b). 
  
 (c) Dispute Resolution. If the
Selling Parties and Buyer are unable to agree as to whether one or more IT Assets are to be included among the Substituted Assets (or the terms of the purchase, lease or license of such assets), the parties will compile a list of such disputed IT
Assets (the “Dispute List”). The Dispute List will, in the case of each category of disputed IT Asset, set forth the Selling Parties’ choice and Buyer’s choice of IT Asset to be deemed a Substituted Asset and the terms of
the purchase, lease or license of such assets. The parties will refer the dispute to a technology consultant of nationally recognized standing (the “Technology Consultant”) to be selected in the following manner: the Selling Parties
will select three (3)
  

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 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 Technology Consultant. The Technology Consultant may not be otherwise engaged by the Selling Parties or Buyer, or their respective Affiliates, in connection
with the transactions contemplated under this Agreement and the Transaction Documents and shall not have performed any material services on behalf of the Selling Parties or Buyer, or their respective Affiliates, during the five (5) years
immediately preceding the date of this Agreement. Upon selection, the Technology Consultant shall immediately be engaged by the parties, with costs and expenses of the Technology Consultant to be borne equally be the Selling Parties, on the one
hand, and Buyer, on the other hand. For a period of ten (10) days following the engagement of the Technology Consultant, the Selling Parties and Buyer shall be entitled to furnish the Technology Consultant with such supporting documentation as
they deem reasonable to support their respective positions with respect any or all of the IT Assets on the Dispute List. The Technology Consultant shall resolve the dispute, with respect to each category of disputed IT Asset on the Dispute List, by
choosing either the Selling Parties’ or Buyer’s choice of IT Asset (and either Selling Parties’ or Buyers’ terms of the purchase, lease or license of such assets), and the decision of the Technology Consultant shall be final and
binding on the Selling Parties and Buyer. The Technology Consultant shall resolve the dispute with respect to each category of IT Asset on the Dispute List within thirty (30) days after the engagement of the Technology Consultant. 

 
 (d) IT Migration Plan. The IT Migration Team shall also be
responsible for developing a detailed plan that will include timetables for and estimated costs of the transfer, assignment, purchase, lease or license, as the case may be, of the Migration Assets (the “IT Migration Plan”). The IT
Migration Plan shall provide, among other things, that if requested by Buyer, the Selling Parties or their Affiliates will use commercially reasonable efforts to obtain for Buyer, on commercially reasonable terms, such Substituted Assets as
requested, subject to Section 4.11(c) above. The Migration Team shall use commercially reasonable efforts to complete the development of the IT Migration Plan prior to the Closing Date and, in any event, shall complete the IT Migration
Plan by no later than fifteen (15) days after the Closing Date. The time from such date through completion of the implementation of the IT Migration Plan shall be stated therein and shall be referred to as the “IT Migration
Period.” It is understood by the parties hereto that the IT Migration Plan will be subject to mutual revision, agreement for which shall not be unreasonably withheld by either party, during the IT Migration Period. Upon completion of the IT
Migration Plan, the Selling Parties shall promptly thereafter transfer the Transferred Assets to Buyer, or the Partnership Entities designated by Buyer. 
  
 (e) Costs. 
  
 (i) Costs Relating to Preparation of IT Migration Plan. All costs related to the Selling Parties’ and their Affiliates’
employees and contractors involved in the preparation of the IT Migration Plan shall be borne by the Selling Parties, and all costs related to Buyer’s employees and contractors involved in the preparation of the IT Migration Plan shall be borne
by Buyer. Costs incurred by Buyer pursuant to this Section 4.11(e)(i) shall not be subject to the Expense Limit (as defined in Section 4.15). 
  

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 (ii) Costs Relating to Implementation of IT Migration Plan. All costs related to
the implementation of the IT Migration Plan, including without limitation the transfer and assignment of Transferred Assets and purchase, lease or license of Substituted Assets, as the case may be (and including the cost of time, labor and expenses
of employees of the Selling Parties and their Affiliates in connection therewith) (collectively, “Implementation Costs”), shall be borne by the Buyer, subject in the case of this Section 4.11(e)(ii) to the Expense Limit.
The Implementation Costs also shall include, without limitation, the following costs and expenses: (i) all cost associated with the transfer of leases or licenses relating to Transferred Assets, (ii) any excess costs or fees associated
with any of the Selling Parties or their Affiliates being deemed to be a service bureau by a vendor of such Migration Assets, (iii) costs relating to the conversion and loading of data, and (iv) costs relating to the integration of the
Migration Assets into the Partnership Entities’ information technology systems. 
  
 (iii) Costs Relating to Transition Services. All costs and expenses associated with ongoing maintenance and support services
provided by the Selling Parties or their Affiliates with respect to the Migration Assets, whether provided under the Transition Services Agreement (other than Implementation Costs) or otherwise, shall not be subject to the Expense Limit. 

 
 (f) Miscellaneous. In the case of Transferred Assets (including
software and computer hardware associated with the ATLAS 2000 System) that are (i) leased by the Selling Parties or their Affiliates, such leases shall be transferred to Buyer, and upon such transfer, Buyer shall assume full responsibility for
such leases, and (ii) assigned to any of the Partnership Entities, including license and contract rights, the Selling Parties shall secure any consents necessary for such assignments. If Buyer elects to obtain its own leases or licenses for
Substituted Assets without the assistance of the Selling Parties, Buyer shall upon the request of the Selling Parties submit to them documentation showing proper licensing prior to the end of the IT Migration Period 
  
 SECTION 4.12. Software License. 
  
 With respect to any Licensed Software that is included in the Transferred
Assets (the “Transferred Licensed Software”), the Selling Parties, for themselves and on behalf of their Affiliates, shall, in accordance with Section 4.11(d), grant to the Partnership Entities and the Buyer and its
Affiliates, a worldwide nonexclusive royalty-free, perpetual license, with the right to assign and sublicense only to such Affiliates, to use, copy, modify, enhance, and upgrade, solely for their internal business purposes and not as a service
bureau, the Transferred Licensed Software, except as not permitted pursuant to any license relating thereto. Any copies of the Transferred Licensed Software and any documentation related thereto must contain all copyright and other intellectual
property rights notices included thereon at the time of Closing. The Partnership Entities and Buyer shall not be entitled to receive and Selling Parties and their Affiliates shall have no obligation to provide any modifications, enhancements, or
upgrades made to the Transferred Licensed Software developed subsequent to the date of transfer of such Licensed Transferred Software to the Buyer or the Partnership Entities. To the extent that they possess such, the Selling Parties and their
Affiliates shall provide copies to Buyer and the Partnership Entities of the source code for all Transferred Licensed Software. Ownership of all 
  

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 intellectual property rights in the Transferred Licensed Software remains with Selling Parties and their Affiliates;
provided, following the date of transfer to Buyer and the Partnership Entities, the intellectual property rights to any modifications, enhancements and upgrades to the Transferred Licensed Software will be owned by the party making such
modifications, enhancements and upgrades and there shall be no right for any party to disclose such to any other party. The Partnership Entities and Buyer shall not take any action that is materially inconsistent with the Selling Parties’ and
their Affiliates’ rights in the Transferred Licensed Software. Except as otherwise expressly provided in this section, the Transferred Licensed Software and any related documentation are provided on an “as is” basis, and the Selling
Parties and their Affiliates hereby expressly disclaim any implied warranty of merchantability or fitness for a particular purpose. The Selling Parties and their Affiliates do not warrant that the Transferred Licensed Software or documentation are
error-free or that the Partnership Entities’ or Buyer’s use thereof will be uninterrupted. Buyer shall have the right to transfer its rights as granted herein to a third party only upon the sale or transfer of all or substantially all of
the Securities or the assets of the Partnership Entities or a majority of the New LLC Interests to such third party, except to the extent any such transfer is not permitted pursuant to any license relating thereto. All rights with respect to
Transferred Licensed Software not expressly granted to Buyer in this Section 4.12 are retained by the Selling Parties and their Affiliates. 
  
 SECTION 4.13. Non-software Copyright License. 
  
 Effective upon the Closing Date, the Selling Parties, for themselves and on behalf of their Affiliates, hereby grant to the Partnership Entities, Buyer
and its Affiliates, a nonexclusive royalty-free, perpetual license, without right to sublicense, to use, copy, modify, enhance, and upgrade, solely for their internal business purposes and not as a service bureau, all manuals, user guides, standards
and operation procedures and similar documents owned by the Selling Parties and/or their Affiliates and used by the Partnership Entities. All copies of the foregoing must reproduce and include all copyright and other intellectual property rights
notices as such appear on such items at the time of Closing or as specifically provided with respect to any such item by the Selling Parties. All rights with respect to such items not expressly granted to Buyer in this Section 4.13 are
retained by the Selling Parties and their Affiliates. 
  
 SECTION 4.14. Transitional Trademark License; Legal Names. 
  
 (a) Effective upon the Closing Date, the Selling Parties and their Affiliates, hereby grant to the Partnership Entities, Buyer and its Affiliates a nonexclusive, nontransferable, royalty-free license, without right to
sublicense, to use, solely in the Partnership Entities’ businesses as they have been conducted since February 9, 2001 and as they are presently conducted, any and all trademarks, service marks, trade names, trade dress and domain names
owned by the Selling Parties and their Affiliates solely to the extent appearing on existing inventory, advertising materials and property of the Partnership Entities (such as signage, vehicles, and equipment) (collectively “Sellers’
Marks”) for a period of nine (9) months from the Closing Date (“License Period”). The Buyer and the Partnership Entities may use such existing inventory, advertising materials and property during the License Period,
but shall not create new inventory, advertising materials or property using Sellers’ Marks. Buyer and the Partnership Entities shall promptly replace or remove Sellers’ Marks on inventory, advertising materials and other property, provided
that all such use shall cease no later than the end of the 
  

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 License Period. The nature and quality of all uses of Sellers’ Marks by Buyer and the Partnership Entities shall
conform to the nature and quality of the uses of Sellers’ Marks by the Selling Parties, Parent and the Partnership Entities as of the date hereof. Immediately upon expiration of the License Period, the Buyer and the Partnership Entities shall
cease all further use of Sellers’ Marks and shall adopt new trademarks, service marks, and trade names that are not confusingly similar to Sellers’ Marks. All rights not expressly granted in this Section 4.14 with respect to
Sellers’ Marks are hereby reserved. In the event Buyer or any of the Partnership Entities breaches the provisions of this Section 4.14 and such breach is not cured (or reasonable steps taken to prevent its reoccurrence for such
breaches that cannot be cured) within fifteen (15) business days after receipt by Buyer or such Partnership Entity of written notice of such breach, the Selling Parties may immediately terminate the License Period upon fifteen (15) days
written notice. 
  
 (b) No later than ninety (90) days
following the Closing Date, Buyer shall have caused each of the Partnership Entities listed on Schedule 4.14 hereof to change its legal name so that there is no longer any reference therein to the name “Williams” or any
variation, derivation or abbreviation thereof, and in connection therewith, Buyer shall cause each such Partnership Entity to make all necessary filings of certificates with the Secretary of State of the State of Delaware and to otherwise amend its
Organizational Documents by such date. 
  
 SECTION 4.15.
Maximum Amount of Certain of Buyer’s Costs and Expenses. 
  
 Notwithstanding any other provision of this Agreement, all (i) Implementation Costs and (ii) one-time costs and capital expenditures related to (A) the transition, transfer or conveyance of assets, operations or employees
from the Selling Parties or Parent to the Buyer or the Partnership Entities or (B) the changing of the names of the Partnership Entities (up to a maximum amount of $650,000 plus reasonable legal expenses and filing fees in the case of this
clause (B)), in excess in the aggregate of $5,000,000 (the “Expense Limit”) incurred by Buyer or the Partnership Entities that would otherwise be borne by Buyer or the Partnership Entities (without reimbursement) shall instead be
borne by the Selling Parties or promptly reimbursed by the Selling Parties to Buyer or the Partnership Entities; provided, however, that the Expense Limit shall only apply to costs, expenses and capital expenditures incurred by Buyer
or the Partnership Entities within twelve (12) months of the Closing Date. Other than the costs, expenses and capital expenditures referred to in the immediately preceding sentence, all costs, expenses and capital expenditures incurred by Buyer
or the Partnership Entities in connection with consummation of the transactions contemplated in this Agreement and the Transaction Documents shall not be included in the Expense Limit nor be subject of any obligation of the Selling Parties or any of
their Affiliates to pay or reimburse such costs, expenses and capital expenditures, including if applicable the cost and expense of relocating Transferred Employees, property or assets from the One Williams Center building in Tulsa, Oklahoma, except
pursuant to the Transition Services Agreement or as otherwise agreed to by the parties. 
  

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 SECTION 4.16. Office Lease; Office Furniture and Equipment; Office Supplies. 
  
 Buyer and the Selling Parties shall negotiate in good faith to enter into a
lease, as soon as reasonably practicable following the Closing Date, between the Selling Parties or an Affiliate, as lessor, and Buyer or a Partnership Entity, as lessee, for a term of not less than five (5) years and at a rate comparable to
that for similar unfurnished commercial space in Tulsa, Oklahoma, subject to the immediately succeeding sentence, to provide the office space at One Williams Center in Tulsa, Oklahoma, currently occupied by the Transferred Employees and the IT
Assets transferred to Buyer or the Partnership Entities under the IT Migration Plan or such other or additional space in One Williams Center as may be mutually agreed upon. The lease will also provide for Williams to provide PBX services to Buyer
and the Partnership Entities for the term of such lease, at a cost that is agreed upon by the parties and will be incorporated into such lease. At such time as Buyer and the Partnership Entities relocate from the One Williams Center building in
Tulsa, Oklahoma, Williams agrees to purchase on behalf of Buyer and the Partnership Entities a system sufficient to provide PBX services to Buyer and the Partnership Entities in their new location. Upon the execution and delivery of such lease, the
Selling Parties will transfer, without additional consideration, to the Partnership Entities (i) the material office furniture and equipment owned by the Selling Parties or their Affiliates and currently used by the Transferred Employees (at
One Williams Center in Tulsa, Oklahoma) and (ii) office supplies of the type currently used by such Transferred Employees in a quantity sufficient to last for approximately ninety (90) days assuming customary usage in accordance with past
practices. Effective as of the Closing, regardless of the execution of such lease, the Selling Parties hereby transfer, without additional consideration, to the Partnership Entities all office furniture owned by the Selling Parties or their
Affiliates that is currently used by the Transferred Employees or the Partnership Entities at locations other than One Williams Center in Tulsa, Oklahoma. 
  
 SECTION 4.17. No Solicitation; Termination of Discussions. 
  
 (a) From and after the date hereof, none of the Selling Parties nor their Affiliates (other than the Partnership Entities),
officers, directors, employees, affiliates, stockholders, representatives, agents, nor anyone acting on behalf of them shall (and, subject to Section 4.17(b) hereof, the Selling Parties shall use their reasonable best efforts to cause
the Partnership Entities not to), directly or indirectly, encourage, solicit, engage in discussions or negotiations with, or provide any information to, any Person (other than Buyer or its representatives) concerning any merger, sale of assets,
purchase or sale of Securities or similar transaction involving the Partnership Entities unless this Agreement has been terminated pursuant to and in accordance with Article VII hereof. 
  
 (b) Notwithstanding the provision of Section 4.17(a) above, the
board of directors of the New Company shall be entitled to take (and to cause any of the other Partnership Entities to take) any action otherwise prohibited by such Section 4.17(a) in response to any inquiry, contact or proposal received
by New Company, its board of directors or any of the other Partnership Entities from a Person that is not an Affiliate of the Selling Parties or the Partnership Entities, if: (i) any discussions and exchanges of information between New Company
(or the other Partnership Entities) and such third party are subject to a customary confidentiality agreement that will allow for the disclosure to Buyer provided in Section 4.17(c) below, (ii) such 
  

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 inquiry, contact or proposal includes a proposal to acquire at least a majority of the outstanding Common Units held by
Persons that are not Affiliates of the Selling Parties or a majority in value of the consolidated assets of the Partnership Entities, (iii) such inquiry, contact or proposal from any such non-Affiliated Person was not received in violation of
Section 4.17(a) and (iv) the board of directors of the New Company shall have determined in its good faith judgment, after consultation with legal counsel, that any failure to take such action would be inconsistent with the
fiduciary duties of the New Company, as the general partner of the Partnership, to the holders of Common Units under the Delaware LP Act. The Selling Parties agree that they will notify Buyer immediately if any such inquiry, contact or proposal is
received by New Company, its board of directors or any of the other Partnership Entities or their respective representatives, and, to the extent known by the Selling Parties, thereafter shall keep Buyer informed, on a reasonably current basis, on
the status of any such inquiry, contact or proposal and a resulting negotiations or discussions. 
  
 (c) In the event that the New Company enters into a definitive agreement for a transaction (“Definitive Transaction Agreement”) referred
to in clause (ii) of Section 4.17(b) above, Buyer will have a period of thirty (30) days from the date the Selling Parties notify Buyer of same (which notice (x) may be given orally, provided it is promptly
confirmed in writing and (y) shall include a description of the transaction and consideration to be paid by the acquiring Person) to evaluate such proposed transaction (and the dates set forth in Sections 7.1(f) and 7.1(g)
hereof shall be extended as necessary to accommodate such 30-day period), and after the expiration of such 30-day period, Buyer may terminate this Agreement at any time while such Definitive Transaction Agreement remains in effect; provided,
however, that if Buyer terminates this Agreement while such a Definitive Transaction Agreement is in effect, then the Selling Parties shall reimburse the Buyer and its Affiliates for their reasonable out-of-pocket expenses (supported by
appropriate documentation therefore) incurred in connection with the transactions contemplated hereby, but in no event shall the amount payable by the Selling Parties pursuant to this proviso exceed $5,000,000. 
  
 (d) In the event that the Partnership calls a meeting of unitholders with a
record date prior to the Closing Date (including a special meeting to consider the approval of a Definitive Transaction Agreement) and the Closing occurs prior to such meeting, the Selling Parties agree to grant to Buyer, effective at Closing, an
irrevocable proxy to vote the WES Units, WNGL Units and the Class B Common Units with respect to any matter to be considered at such meeting. 
  
 SECTION 4.18. Confirmation of Termination of Old Omnibus Agreement. 
  
 Upon the receipt by Buyer from the Selling Parties or Parent of a written request after the Closing, Buyer shall use its
best efforts to cause the applicable Partnership Entities to confirm the termination of the Old Omnibus Agreement as promptly as practicable following receipt of such request. 
  
 SECTION 4.19. New Company Intercompany Accounts. 
  
 At Closing, all cash on hand at the New Company will be distributed to Williams. All intercompany accounts between the New
Company, on the one hand, and Parent, Selling Parties 
  

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 and their Affiliates (other than the Partnership Entities), on the other hand, shall be zeroed at Closing (irrespective
of the terms of payment or balances of such intercompany accounts), with no obligation on the part of any party to make any payment with respect to any such intercompany accounts. 
  
 SECTION 4.20. Certain Costs and Expenses of Board of Directors of New Company. 
  
 The Selling Parties and Parent shall promptly reimburse the Partnership for
costs and expenses of third parties borne by the Board of Directors of New Company in consideration of the transactions contemplated by this Agreement and the Transaction Documents that exceed $200,000. 
  
 SECTION 4.21. New Company Audited Financial Statements. 
  
 As soon as practicable after the date of this Agreement, the Selling Parties
shall provide Buyer with audited balance sheets, as of December 31, 2002 and December 31, 2001, and audited income statements and statements of cash flows for the 12-month period ended December 31, 2002 and the period from
February 10, 2001 through December 31, 2001, in each case of the New Company and its predecessor in interest. 
  
 ARTICLE V. 
 CONDITIONS TO OBLIGATIONS
OF BUYER 
  
 The obligations of Buyer to consummate the
transactions contemplated by this Agreement are subject to the fulfillment, at or before the Closing Date, of the following conditions, any one or more of which may be waived by Buyer in its sole discretion; provided, that Buyer cannot waive,
without the consent of the Selling Parties, the conditions specified in Section 5.4 relating to the receipt of consents required under the Parent Credit Facility and the Parent Credit Facility Security Documents and the receipt of a
release under the Parent Credit Facility Liens: 
  
 SECTION
5.1. Receipt of Documents. 
  
 The Selling Parties shall have
delivered, or be standing ready to deliver, to Buyer the items specified in Sections 1.2(a)(i), 1.2(a)(ii), 1.2(a)(iii) and 1.2(a)(iv), in each case duly executed and dated the Closing Date. 
  
 SECTION 5.2. Representations and Warranties of the Selling Parties.

  
 All representations and warranties made by the Selling
Parties in this Agreement that are not qualified by materiality or Material Adverse Effect shall be true and correct in all material respects on and as of the Closing Date as if again made by the Selling Parties on and as of such date, and all
representations and warranties that are qualified by materiality or Material Adverse Effect shall be true and correct on the Closing Date as if made by the Selling Parties on and as of such date; and Buyer shall have received a certificate dated the
Closing Date and signed by a senior executive officer of each of the Selling Parties to that effect. Any entitlement of the Partnership Entities to indemnity under the Additional Partnership Indemnity Agreements or any 
  

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 other agreement shall in no way influence the determination as to whether all such representations and warranties are
true and correct in all material respects (or true and correct) on and as of the Closing Date. Notwithstanding the foregoing, the representations and warranties made by the Selling Parties in Section 2.25 shall be deemed to be true and
correct in all material respects unless written notices from customers or shippers that they will discontinue their business relationship with any of the Partnership Entities (or, to the Knowledge of the Selling Parties, threats of any such action
from material shippers or customers) have been received by the Parent, the Selling Parties or the Partnership Entities which represent, in the aggregate, more than $22.0 million in the Partnership’s consolidated annual earnings before interest
expenses, taxes, depreciation and amortization; provided, however, that Buyer shall be entitled to consider any such discontinued business, together with other adverse effects on the Partnership Entities, for purposes of
Section 5.11. 
  
 SECTION 5.3. Performance of
Selling Parties’ Obligations. 
  
 The Selling Parties
shall have performed in all material respects all obligations required under this Agreement to be performed by them on or before the Closing Date, and Buyer shall have received a certificate dated the Closing Date and signed by a senior executive
officer of each of the Selling Parties to that effect. 
  
 SECTION 5.4. Consents and Approvals. 
  
 The
Selling Parties and Parent shall have received all consents required under the Parent Credit Facility and the Parent Credit Facility Security Documents. The Selling Parties shall have received a full release of all Parent Credit Facility Liens and
of each of the Partnership Entities that is party to any Parent Credit Facility Security Document from all liabilities, obligations and commitments of any Partnership Entity thereunder, in form and substance reasonably satisfactory to Buyer, and the
Selling Parties and Parent shall have delivered all documents in connection therewith as the Buyer may reasonably request. All consents, waivers, authorizations and approvals set forth on Schedule 2.7 shall have been duly obtained and shall
be in full force and effect on the Closing Date. The Selling Parties or Parent shall have received all consents required in connection with the last matter listed on Schedule 2.7 as of the date of this Agreement, or alternatively, Buyer shall
have received an opinion of counsel dated as of the Closing Date, in form and substance reasonably satisfactory to Buyer, that no such consent is necessary. 
  
 SECTION 5.5. No Violation of Orders. 
  
 No preliminary or permanent injunction or other order issued by any Governmental Authority that declares this Agreement or any of the Transaction
Documents invalid or unenforceable in any respect or that prevents the consummation of the transactions contemplated hereby or thereby shall be in effect; and no action or proceeding before any Governmental Authority shall have been instituted by a
Governmental Authority or threatened by any Government Authority that seeks to prevent or delay the consummation of the transactions contemplated by this Agreement or any of the Transaction Documents or that challenges the validity or enforceability
of this Agreement or any of the Transaction Documents. 
  

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 SECTION 5.6. Director Resignations. 
  
 The Buyer shall have received the effective resignations of each of the directors of the New Company, other than those
directors who are not a director, officer, employee or agent of Parent or its Affiliates, or as otherwise agreed to in writing by the Buyer, and all actions shall have been taken so that immediately upon the Closing designees or nominees of the
Buyer shall constitute a majority of the members of the Board of Directors of the New Company (including designees or nominees that are independent directors within the meaning of the Partnership Agreement). 
  
 SECTION 5.7. Employment 
  
 Buyer shall have arranged acceptable employment arrangements with each of
the Key Executives; provided, that no condition to Closing shall exist under this Section 5.7 unless Buyer has made an offer of employment to each such Key Executive on terms that in the aggregate are not materially less favorable
than the employment terms that each such Key Executive currently enjoys with the Selling Parties or an Affiliate thereof. 
  
 SECTION 5.8. Legal Opinion. 
  
 Buyer shall have received an opinion(s) of Andrews & Kurth L.L.P., counsel to Parent and Selling Parties, and/or such other counsel reasonably
acceptable to Buyer, dated the Closing Date, substantially in the form of Exhibit 5.8. 
  
 SECTION 5.9. Debt Financing. 
  
 Buyer shall have obtained the funds necessary to pay the First Payment of the Purchase Price. 
  
 SECTION 5.10. Absence of Specified Events. 
  
 None of the actions referred to in Section 4.1(a) through Section 4.1(o) shall have occurred and be continuing, except to the
extent permitted under Section 4.1 hereof; provided, that if any such actions have occurred at any time after August 31, 2003, the date specified in Section 7.1(g) hereof shall, in Buyer’s sole discretion, be
extended to a date 30 days after the date the Buyer first receives notice of such occurrence. 
  
 SECTION 5.11. Material Adverse Effect. 
  
 No Material Adverse Effect shall have occurred since the date of this Agreement. 
  
 SECTION 5.12. Financial Advisor’s Opinion. 
  
 The Boards of Directors of the Selling Parties and Parent shall have received an opinion (a copy of which shall have been furnished to the Buyer) from a
nationally recognized investment bank, dated as of the date of this Agreement, to the effect that the consideration (as defined therein) to be paid by Buyer to each of the Selling Parties pursuant to this Agreement constitutes reasonably equivalent
value for the Securities sold by each such Selling Party. 
  

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 SECTION 5.13. Waivers of Existing Debt Agreements. 
  
 The Selling Parties shall have received a written waiver from each of
(a) the noteholders under the Note Purchase Agreement, dated as of October 1, 2002, among Williams Pipe Line Company, LLC and the noteholders party thereto and (b) the lenders under the Credit Agreement, dated as of February 6,
2001, among Williams OLP, L.P., Bank of America, N.A., as administrative agent, Lehman Commercial Paper, Inc., as syndication agent, Suntrust Bank, as documentation agent, and the lenders party thereto, in each case in substantially the form set
forth on Schedule 5.13 (or such other form as may reasonably be agreed to by Buyer) for the purpose, or in the manner, described on such schedule. 
  
 ARTICLE VI. 
 CONDITIONS TO
OBLIGATIONS OF SELLING PARTIES 
  
 The obligations of the
Selling Parties to consummate the transactions contemplated by this Agreement are subject to the fulfillment, at or before the Closing Date, of the following conditions, any one or more of which may be waived by the Selling Parties in their sole
discretion: 
  
 SECTION 6.1. Receipt of Documents.

  
 Buyer shall have delivered, or be standing ready to
deliver, to the Selling Parties the items specified in Section 1.2(b), in each case duly executed and dated the Closing Date. 
  
 SECTION 6.2. Representations and Warranties of Buyer. 
  
 All representations and warranties made by Buyer in this Agreement that are not qualified by materiality or material adverse effect shall be true and
correct in all material respects on and as of the Closing Date as if again made by Buyer on and as of such date, and all representations and warranties that are qualified by materiality or material adverse effect shall be true and correct on the
Closing Date as if made by the Buyer on and as of such date; and the Selling Parties shall have received a certificate dated the Closing Date and signed by a senior executive officer of Buyer to that effect. 
  
 SECTION 6.3. Performance of Buyer’s Obligations. 
  
 Buyer shall have performed in all material respects all obligations required
under this Agreement to be performed by it on or before the Closing Date, and the Selling Parties shall have received a certificate dated the Closing Date and signed by a senior executive officer of Buyer to that effect. 
  
 SECTION 6.4. Consents and Approvals. 
  
 All consents, waivers, authorizations and approvals set forth on Schedule
3.4 shall have been duly obtained and shall be in full force and effect on the Closing Date. 
  

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 SECTION 6.5. No Violation of Orders. 
  
 No preliminary or permanent injunction or other order issued by any
Governmental Authority that declares this Agreement or any of the Transaction Documents invalid or unenforceable in any respect or that prevents the consummation of the transactions contemplated hereby or thereby shall be in effect; and no action or
proceeding before any Governmental Authority shall have been instituted by a Governmental Authority or threatened by any Governmental Authority that seeks to prevent or delay the consummation of the transactions contemplated by this Agreement or any
of the Transaction Documents or that challenges the validity or enforceability of this Agreement or any of the Transaction Documents. 
  
 SECTION 6.6. Legal Opinion. 
  
 The Selling Parties shall have received an opinion of Vinson & Elkins L.L.P., counsel to Buyer, dated the Closing Date substantially in the form
of Exhibit 6.6. 
  
 SECTION 6.7. Assumption of Consent
Decree 
  
 Buyer shall have agreed to be bound by the Consent
Decree, only to the extent (i) the Consent Decree is applicable to the properties, assets or operations of the Partnership Entities and (ii) required by the Federal Trade Commission after consultation therewith. Nothing herein shall
prevent Buyer from exercising any rights under the Consent Decree, including the right to petition to the Federal Trade Commission to modify or terminate the Consent Decree as it applies to Buyer or the Partnership Entities. 
  
 ARTICLE VII. 
 TERMINATION AND ABANDONMENT 
  
 SECTION 7.1. Methods of Termination; Upset Date. 
  
 This Agreement may, or in the case of Section 7.1(g) will, be terminated and the transactions contemplated hereby may be abandoned at any time before the Closing: 
  
 (a) by the mutual written consent of the Selling Parties and Buyer;

  
 (b) by the Selling Parties, if Buyer fails to comply with any
of its covenants or agreements contained herein, or breaches their representations and warranties contained herein, which failure to comply or breach is not cured within 30 days after receipt by Buyer from the Selling Parties of written notice
specifying particularly such failure to comply or breach, and such failure to comply or breach would result in a failure to satisfy the conditions to Closing set forth in Sections 6.2 and/or 6.3; 
  
 (c) by Buyer, if the Selling Parties fail to comply with any of their
covenants or agreements contained herein, or breaches its representations and warranties contained herein, which failure to comply or breach is not cured within 30 days after receipt by the Selling Parties from Buyer of written notice specifying
particularly such failure to comply or breach, and such failure to comply or breach would result in the failure to satisfy the conditions to Closing set forth in Sections 5.2 and/or 5.3; 
  

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 (d) by Buyer in accordance with Section 4.17(c) hereof; 
  
 (e) by the Selling Parties or Buyer, if a Governmental Authority shall have
issued an order, decree or ruling or taken any other action (which order, decree or ruling the parties hereto shall use their commercially reasonable efforts to lift), which permanently restrains, enjoins or otherwise prohibits the transactions
contemplated by this Agreement and which order, decree, ruling or other action is not subject to appeal; 
  
 (f) by written notice of the Selling Parties by not later than 5:00 p.m. New York time on July 3, 2003 if (i) the Closing has not occurred on or
before 11:59 p.m. New York time on June 30, 2003, (ii) the Selling Parties have satisfied, or are standing ready and able to satisfy, as of June 30, 2003, all of the conditions precedent under Article V (other than the
condition set forth in Section 5.9, as to which the Selling Parties shall not be in breach of their covenant contained in the second sentence of Section 4.6), and (iii) none of the Selling Parties is in breach of any
provision of this Agreement; or 
  
 (g) without any action
required by the Selling Parties or Buyer, if the Closing has not occurred by 11:59 p.m. New York time on September 30, 2003. 
  
 SECTION 7.2. Effect of Termination. 
  
 In the event of termination of this Agreement pursuant to Section 7.1(a), (d), (e), (f) or (g) hereof, this
Agreement shall forthwith become void and there shall be no liability on the part of Buyer or the Selling Parties (or their respective officers or directors), except based upon obligations set forth in Sections 4.17(c), 9.3 and
9.4 hereof, and except that Buyer shall thereupon promptly return or destroy (and cause its agents and representatives to return or destroy) to the Selling Parties all documents (and copies thereof) furnished to Buyer and the parties shall
continue to adhere to the Confidentiality Agreement. Notwithstanding the foregoing or any other provision of this Agreement, termination of this Agreement pursuant to Section 7.1(b) or Section 7.1(c) shall not in any way
limit or restrict the rights and remedies of any party hereto against any other party hereto that has violated or breached any of the representations, warranties, agreements or other provisions of this Agreement prior to termination hereof.

  
 ARTICLE VIII. 
 SURVIVAL; INDEMNIFICATION 
  
 SECTION 8.1. Survival. 
  
 (a) The representations and warranties of the Selling Parties contained herein or in any certificates or other documents delivered pursuant to this
Agreement on the Closing Date shall survive the Closing for a period of eighteen (18) months following the Closing Date; provided however, that (i) the representations and warranties set forth in Section 2.21
(Environmental; Health and Safety Matters) shall survive for a period of five (5) years following the Closing Date, (ii) the representations and warranties set forth in Sections 2.2 and 2.3 (Capitalization; Title),
Section 2.5 (Validity of Agreement; Authorization), Section 2.18 (Brokers) and Section 2.27 (Excluded Assets) shall survive indefinitely and (iii) the representations and warranties set forth in
Section 2.10 (Taxes) shall survive for a period equal to thirty (30) days after the expiration of the applicable statute of limitations (including extensions) 
  

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 for each Tax and taxable year. The covenants and agreements in this Article VIII shall survive the Closing and
shall remain in full force and effect for such period as is necessary to resolve any claim made with respect to any representation, warranty, covenant or agreement contained herein during the survival period thereof, and the covenants and agreements
of the Parties contained in Articles IV and IX of this Agreement shall survive the Closing for (x) the time period(s) set forth in the respective Sections contained in such Articles, or (y) if no time period is
so specified, without any contractual limitation on the period of survival. 
  
 (b) The representations and warranties of Buyer contained herein or in any certificates or documents delivered pursuant to this Agreement or the Closing shall survive the Closing for a period of eighteen
(18) months following the Closing Date; provided, however, that the representations and warranties set forth in Section 3.2 (Validity of Agreement) and Section 3.7 (Brokers) shall survive indefinitely. 

 
 SECTION 8.2. Indemnification Coverage. 
  
 (a) From and after the Closing, the Selling Parties shall indemnify and
defend, save and hold Buyer, the Partnership Entities and their Affiliates and each of their officers, directors, employees and agents (collectively, the “Buyer Indemnified Parties”) harmless if any such Buyer Indemnified Party
shall suffer any damage, judgment, fine, penalty, demand, settlement, liability, loss, cost, Tax, expense (including reasonable attorneys’, consultants’ and experts’ fees), claim or cause of action (each, a “Loss,”
and collectively, “Losses”) arising out of, relating to or resulting from: 
  
 (i) any breach or inaccuracy in any representation by the Selling Parties or the breach of any warranty by the Selling Parties contained
in this Agreement or any certificates or other documents delivered pursuant to this Agreement at the Closing; provided, that in determining whether any such representation or warranty has been breached or is inaccurate, such representation or
warranty shall be construed as if Material Adverse Effect or materiality is not a qualification thereto; 
  
 (ii) any failure by the Selling Parties to perform or observe any term, provision, covenant, or agreement on the part of the Selling
Parties to be performed or observed under this Agreement; 
  
 (iii) the failure by the Selling Parties to comply with any applicable statutory provisions relating to bulk sales and transfers; 
  
 (iv) subject to Section 8.2(c) hereof, any of the matters listed on Schedule 2.21 hereto;
and 
  
 (v) any fines, penalties, or amounts paid
to settle or resolve the last matter listed on Schedule 2.7 as of the date of this Agreement. 
  
 provided, however, that if any Loss for which Buyer would otherwise be entitled to seek indemnity from the Selling Parties under this Section 8.2(a) is included within the matters for which the
Partnership Entities or any other Buyer Indemnified Party would be entitled to indemnity under any of Section 3.1 of the Old Omnibus Agreement, Article IV of the New 

  

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 Omnibus Agreement or Section 10.1(b) of the WPL Contribution Agreement (such provisions are collectively referred to
herein as the “Additional Partnership Indemnity Agreements”), even if recovery under the Additional Partnership Indemnity Agreements is not available due to the expiration of any applicable survival period or any applicable
deductible, threshold, maximum or “cap” thereon, then none of the Buyer Indemnified Parties shall be entitled to indemnification with respect to such matter or matters under this Section 8.2(a). The foregoing proviso shall not
be deemed to amend, supplement or modify in any way the Additional Partnership Indemnity Agreements. 
  
 (b) From and after the Closing, Buyer shall indemnify and defend, save and hold the Selling Parties and their Affiliates and their officers, directors,
employees and agents (collectively, the “Seller Indemnified Parties”) harmless if any such Seller Indemnified Party shall suffer any Loss arising out of, relating to or resulting from: 
  
 (i) any breach or inaccuracy in any representation by Buyer
or the breach of any warranty by Buyer contained in this Agreement or any certificates or other documents delivered pursuant to this Agreement at the Closing; 
  

(ii) any failure by Buyer to perform or observe any term, provision, covenant, or agreement on the part of Buyer to be performed or
observed under this Agreement; 
  
 (iii) with
respect to any of the Partnership Entities, whether occurring before or after Closing to the extent such Losses are not covered by Section 8.2(a), except in the case, and only to the extent, of Losses that arise out of, or relate to or
result from matters covered under the Additional Partnership Indemnity Agreements or otherwise covered under the Transaction Documents, the WPL Contribution Agreement or the Old Omnibus Agreement; and 
  
 (iv) any Losses arising under the second paragraph of
Section 3.1 and Section 3.2, in each case, of the Assignment and Assumption Agreement (as defined in Section 9.16), other than Affiliate intercompany obligations. 
  
 (c) Buyer and the Selling Parties hereby acknowledge and agree as follows: 
  
 (i) Buyer agrees, on the terms and subject to the conditions
specified in this Section 8.2(c), to assume at the Closing the obligations of WES under the Additional Partnership Indemnity Agreements to indemnify the Partnership Entities for the environmental remedial obligations specified in
Schedule 8.2(c) hereto. 
  
 (ii) The
Partnership and WES have (A) identified environmental remedial obligations in Schedule 8.2(c) hereto for which WES is, subject only to Section 8.2(c)(iii), required to indemnify the Partnership pursuant to the Additional
Partnership Indemnity Agreements and (B) prepared estimates of the costs expected to be incurred by the Partnership in connection with remediation activities to be undertaken in connection with such matters, and the Partnership, in accordance
with GAAP, has recognized as a liability for such estimated costs and expenses to be incurred a total of $21,870,000 (as of March 31, 2003), consisting of both the current and long-term portions of such liability. Included in Schedule
8.2(c) hereto is a schedule setting forth in reasonable detail the projected schedule for the incurrence of such costs and expenses. 
  

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 (iii) Buyer hereby covenants and agrees that it will pay on behalf of WES when due to the
Partnership Entities under the Additional Partnership Indemnity Agreements all amounts that otherwise would be required to be paid by WES thereunder in respect of the matters listed under the column entitled “Site Name” in Schedule
8.2(c) hereto, such payments to be made by Buyer from time to time as and when such amounts otherwise would become due and payable by WES and whether or not such amounts become due and payable before or after the time(s) projected in Schedule
8.2(c) (and WES agrees to notify Buyer promptly upon the request of any Partnership Entity or other Person for any payment subject to this clause (iii) of Section 8.2(c)). 
  
 (iv) If (A) the matters specified under the column
entitled “Site Name” in Schedule 8.2(c) hereto are determined to have reached closure by the appropriate Governmental Authority or have otherwise been finally resolved and all payments required to be made under the Additional
Partnership Indemnity Agreements with respect thereto have been made by Buyer as provided in clause (iii) of this Section 8.2(c), (B) the Maximum Obligation (as defined below) has not been reached and (C) WES or the other
Selling Parties have continuing indemnity obligations under the Additional Partnership Indemnity Agreements, Section 8.2(a)(i) hereof (in respect of a breach of a representation in Section 2.21 hereof) or
Section 8.2(a)(iv) hereof, then Buyer covenants and agrees that, only to the extent of the Maximum Obligation, it shall pay any amounts that become payable by WES or the other Selling Parties under any of the continuing indemnity
obligations referred to in clause (C) of this Section 8.2(c)(iv) from time to time as and when amounts would otherwise be payable by WES or the other Selling Parties. 
  
 (v) If (A) the conditions referenced in clauses (iv)(A) and (iv)(B) of this Section 8.2(c)
exist and the obligations of WES and the other Selling Parties under the provisions referenced in clause (iv)(C) of this Section 8.2(c) have expired and no amounts remain payable by WES or the other Selling Parties thereunder and
(B) WES and the other Selling Parties (or their respective successors) and the Partnership furnish to Buyer a certificate from their respective chief financial officers or chief legal officers to such effect, then promptly upon receipt of such
certificates in proper form Buyer shall pay to the Selling Parties the remaining unpaid amount, if any, of the Maximum Obligation. 
  
 (vi) Buyer agrees that it shall use commercially reasonable efforts to cause the Partnership Entities to treat any payments made by Buyer
under clauses (iii) or (iv) of this Section 8.2(c) as a payment by WES or the other Selling Parties under the applicable Additional Partnership Indemnity Agreement in respect of which such payment is made, and Buyer shall
indemnify and hold harmless WES and the other Selling Parties from any and all Losses caused by the failure or refusal of the Partnership Entities or any other Person to treat any payment so made by Buyer in accordance with clause (iii) or
(iv) of this Section 8.2(c) as a payment made by or on behalf of WES or the other Selling Parties, as case may be, pursuant to the referenced indemnity obligation of such Person(s). 
  

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 (vii) For purposes of this Section 8.2(c), Buyer shall pay to the Partnership
all amounts due under this Section 8.2(c) following receipt of such amounts due from the General Partner on behalf of the Partnership. The determination of amounts and when they are due shall be made in good faith solely by the General
Partner; provided, however, that Buyer shall not be required to make any such payments within less than twenty (20) days after receipt of the General Partner’s determination; provided, further, Buyer shall indemnify and hold
harmless the Selling Parties from any and all Losses caused by any delay by Buyer in making any such payment to the Partnership under this Section 8.2(c)(vii). 
  
 (viii) Notwithstanding the foregoing provisions of this Section 8.2(c), in no event shall the
aggregate amounts payable by or on behalf of Buyer under this Section 8.2(c) exceed $21,870,000 (the “Maximum Obligation”). 
  
 (d) The foregoing indemnification obligations shall be subject to the following limitations: 
  
 (i) the Selling Parties’ aggregate liability under
Section 8.2(a) shall not exceed $175,000,000 (the “Cap”); provided, however, that the Cap shall not be applicable with respect to Losses otherwise indemnifiable under Section 8.2(a)(i) with respect to
breaches or inaccuracies of Section 2.27 or under 8.2(a)(v); 
  
 (ii) no indemnification for any Losses asserted against the Selling Parties under Section 8.2(a)(i) shall be required unless
and until the cumulative aggregate amount of such Losses exceeds $4,000,000 (the “Deductible”), at which point the Selling Parties shall be obligated to indemnify the Buyer Indemnified Parties the amount of such Losses in excess of
the Deductible, subject to the Cap; provided however, that the Deductible shall not be applicable to breaches under Sections 2.2, 2.3, 2.5, 2.11(b), 2.18, 2.21 or 2.27 hereof or recovery under
Sections 8.2(a)(ii), 8.2(a)(iii), 8.2(a)(iv) or 8.2(a)(v) hereof; 
  
 (iii) the amount of any Losses suffered by a Seller Indemnified Party or a Buyer Indemnified Party, as the case may be (such party seeking
indemnification pursuant to this Article VIII, the “Indemnified Party,” and the other party, the “Indemnifying Party”), shall be reduced by any third-party insurance or other indemnification benefits which
such party receives in respect of or as a result of such Losses, less the reasonable costs incurred to recover those insurance or indemnification benefits to the extent such costs are not otherwise recovered. If any Losses for which indemnification
is provided hereunder is subsequently reduced by any third-party insurance or other indemnification benefit or recovery, the amount of the reduction shall be remitted to the Indemnifying Party. In the case of any purchase agreement between a
Partnership Entity and a third-party relating to the acquisition of assets, businesses or securities by such Partnership Entity that contains unexpired and otherwise applicable indemnification provisions, if any Loss for which Buyer is entitled to
seek indemnity from the Selling Parties under Section 8.2(a) is also included within the matters for which the Partnership Entities are entitled to indemnity under any such third-party agreement, Buyer agrees to use commercially
reasonable efforts to cause any such Partnership Entity 
  

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 first to pursue indemnification under such third-party agreement in good faith for a reasonable period of
time prior to enforcing any claim against the Selling Parties for indemnification hereunder. Nothing in the foregoing sentence shall (i) prejudice the rights of the Buyer Indemnified Parties to make a claim for indemnification hereunder within
the applicable survival period, if any, or (ii) require any Buyer Indemnified Party to file or institute any judicial proceeding or action. In addition, to the extent the Selling Parties make any payments to any Buyer Indemnified Party with
respect to any claims covered under the unexpired and otherwise applicable indemnification provisions of such third-party agreements, Buyer agrees to use commercially reasonable efforts to cause the applicable Partnership Entity or Entities, at the
sole cost and expense of the Selling Parties, (A) to assign any rights to the Selling Parties under such third-party agreement as may be necessary to allow the Selling Parties to independently pursue a claim for indemnification against the
counterparty or counterparties to such third-party agreement and (B) to be subrogated to the rights of the applicable Partnership Entity or Entities in respect of such indemnification claims; 
  
 (iv) no claim may be asserted nor may any action be
commenced against any party for breach or inaccuracy of any representation or breach of a warranty, unless written notice of such claim or action is received by the other party describing in reasonable detail the facts and circumstances with respect
to the subject matter of such claim or action on or prior to the date on which the representation or warranty on which such claim or action is based ceases to survive as set forth in Section 8.1; 
  
 (v) no Indemnified Party shall be entitled under this
Agreement to multiple recovery for the same Losses; and 
  
 (vi) the limitations on indemnification set forth in clauses (i) and (ii) of this Section 8.2(d) shall not apply to any Losses arising from the failure by the Selling Parties or Buyer to pay any
Taxes in accordance with Section 4.9 or for any amounts payable in accordance with Section 9.3 hereof. 
  
 SECTION 8.3. Procedures. 
  
 (a) Any Indemnified Party shall notify the Indemnifying Party (with reasonable detail) promptly after it becomes aware of facts supporting a claim or
action for indemnification under this Article VIII, and shall provide to the Indemnifying Party as soon as practicable thereafter all reasonable available information and documentation necessary to support and verify any Losses associated
with such claim or action. Subject to Section 8.2(d)(iv), the failure to so notify or provide information to the Indemnifying Party shall not relieve the Indemnifying Party of any liability that it may have to any Indemnified Party,
except to the extent that the Indemnifying Party demonstrates that it has been materially prejudiced by the Indemnified Party’s failure to give such notice, in which case the Indemnifying Party shall be relieved from its obligations hereunder
to the extent of such material prejudice. The Indemnifying Party shall participate in and defend, contest or otherwise protect the Indemnified Party against any such claim or action by counsel of the Indemnifying Party’s choice at its sole cost
and expense; provided, however, that the Indemnifying Party shall not make any settlement or compromise without the prior written consent of the Indemnified Party (which consent shall 
  

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 not be unreasonably withheld or delayed) unless the sole relief provided is monetary damages that are paid in full by the
Indemnifying Party, there is no admission or statement of fault or culpability on the part of the Indemnified Party and there is an unconditional release of the Indemnified Party from all liability on any claims that are the subject of such claim or
action. The Indemnified Party shall have the right, but not the obligation, to participate at its own expense in the defense thereof by counsel of the Indemnified Party’s choice and shall in any event use its commercially reasonable efforts to
cooperate with and assist the Indemnifying Party; provided, however, that the Indemnifying Party shall pay the fees and expenses of separate counsel for the Indemnified Party if (i) the Indemnifying Party has agreed to pay such fees and
expenses or (ii) counsel for the Indemnifying Party reasonably determines that representation of both the Indemnifying Party and the Indemnified Party by the same counsel would create a conflict of interest. If the Indemnifying Party fails
timely to defend, contest or otherwise protect against such suit, action, investigation, claim or proceeding, the Indemnified Party shall have the right to do so, including, without limitation, the right to make any compromise or settlement thereof,
and the Indemnified Party shall be entitled to recover the entire cost thereof from the Indemnifying Party, including, without limitation, reasonable attorneys’ fees, disbursements and amounts paid as the result of such suit, action,
investigation, claim or proceeding. 
  
 (b) Any claim or action
for indemnification under Section 8.2(a)(i) (for Losses arising from, or relating to a breach of a representation or warranty set forth in Section 2.21) or Section 8.2(a)(iv), that requires remediation shall be
administered in accordance with the procedures set forth on Schedule 8.3(b) hereto. 
  
 SECTION 8.4. Waiver of Consequential, Etc. Damages. 
  
 NOTWITHSTANDING ANYTHING TO THE CONTRARY IN THIS AGREEMENT, BUYER SHALL NOT BE LIABLE TO ANY OF THE SELLER INDEMNIFIED PARTIES, NOR SHALL ANY OF THE SELLING PARTIES 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. 
  
 SECTION 8.5. Compliance
with Express Negligence Rule. 
  
 ALL RELEASES, DISCLAIMERS,
LIMITATIONS ON LIABILITY, AND INDEMNITIES IN THIS AGREEMENT, INCLUDING THOSE IN THIS ARTICLE VIII, SHALL APPLY EVEN IN THE EVENT OF THE SOLE, JOINT, AND/OR CONCURRENT NEGLIGENCE, STRICT LIABILITY, OR OTHER FAULT OF THE PARTY WHOSE
LIABILITY IS RELEASED, DISCLAIMED, LIMITED, OR INDEMNIFIED. 
  
 SECTION 8.6. Liquidated Damages. 
  
 If Buyer
breaches its obligations to close as contemplated by Article V, then Buyer shall pay to the Selling Parties $25,000,000 by wire transfer of immediately available funds to a bank 
  

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 account in the United States of America designated in writing by the Selling Parties not later than three days following
receipt of such designation. BUYER AND THE SELLING PARTIES HEREBY ACKNOWLEDGE THAT (I) THE EXTENT OF DAMAGES TO THE SELLING PARTIES CAUSED BY THE FAILURE OF THIS TRANSACTION TO BE CONSUMMATED DUE TO THE CIRCUMSTANCES SPECIFIED IN THE
IMMEDIATELY PRECEDING SENTENCE WOULD BE IMPOSSIBLE OR EXTREMELY DIFFICULT TO ASCERTAIN, (II) THE AMOUNT OF THE LIQUIDATED DAMAGES PROVIDED FOR IN THIS SECTION 8.6 IS A FAIR AND REASONABLE ESTIMATE OF SUCH DAMAGES UNDER SUCH CIRCUMSTANCES
AND (III) RECEIPT OF SUCH AMOUNT BY THE SELLING PARTIES DOES NOT CONSTITUTE A PENALTY AND WILL BE THE SELLING PARTIES’ SOLE AND EXCLUSIVE REMEDY WITH RESPECT TO THE CIRCUMSTANCES SPECIFIED IN THE IMMEDIATELY PRECEDING SENTENCE. 

 
 SECTION 8.7. Remedy. 
  
 Except for seeking equitable relief under Section 9.12 or
otherwise or actions involving fraud or as set forth in Section 9.5, from and after the Closing the sole remedy of a party in connection with (i) a breach or inaccuracy of the representations, or breach of warranties, in this
Agreement or any certificates or other documents delivered pursuant to this Agreement on Closing, or (ii) any failure by a party to perform or observe any term, provision, covenant, or agreement on the part of such party to be performed or
observed under this Agreement, shall, in each case, be as set forth in this Article VIII. 
  
 SECTION 8.8. Tax Treatment of Indemnity Payments. 
  
 Each party, to the extent permitted by applicable law, agrees to treat any payments made pursuant to this Article VIII as adjustments to the
Purchase Price for all federal and state income and franchise Tax purposes. To the extent that any such payment is not permitted to be treated as an adjustment to the Purchase Price, the amount of such payment shall be increased so that after
reduction for the amount of any actual additional Tax cost incurred as a result of the receipt of such payment, the amount remaining will be equal to the amount of the payment that is owed under this Article VIII. 
  
 ARTICLE IX. 
 MISCELLANEOUS PROVISIONS 
  
 SECTION 9.1. Publicity. 
  
 On or prior to the Closing Date, no party shall, nor shall it permit its Affiliates to, issue or cause the publication of any press release or other announcement with respect to this Agreement or the transactions contemplated hereby without
the consent of the other party hereto. Notwithstanding the foregoing, in the event any such press release or announcement is required by law or stock exchange rule to be made by the party proposing to issue the same, such party shall use its
commercially reasonable efforts to consult in good faith with the other party prior to the issuance of any such press release or announcement. 
  

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 SECTION 9.2. Successors and Assigns; Third-Party Beneficiaries. 
  
 This Agreement shall inure to the benefit of, and be binding upon, the
parties hereto and their respective successors and permitted assigns. Except as contemplated by Article VIII, nothing in this Agreement shall confer upon any Person not a party to this Agreement, or the legal representatives of such Person,
any rights or remedies of any nature or kind whatsoever under or by reason of this Agreement. No party shall sell, assign or otherwise transfer all or any of its rights, benefits or obligations hereunder without the prior written consent of the
other party, such consent not to be unreasonably withheld or delayed, provided, however, that (a) Buyer may, without the Selling Parties’ prior written consent, assign or transfer its rights and duties hereunder to the Partnership
(or an Affiliate of Buyer other than a Partnership Entity) and, if so assigned or transferred, the Partnership (or such Affiliate of Buyer other than a Partnership Entity) shall be entitled to enforce the rights, and shall comply with the duties,
hereunder so transferred or assigned as if it were a named party hereto, but no such transfer or assignment shall relieve Buyer of its obligations hereunder and no such assignee or transferee may further assign any such rights, (b) for the
purposes of any financing or refinancing arrangement entered into by the Buyer in connection with the purchase of the Securities the Buyer may, without the Selling Parties’ prior written consent, assign to or create a security interest in favor
of any party providing any such financing or refinancing to the Buyer, all of its rights, benefits, obligations and interests hereunder, and the Selling Parties hereby consent to the exercise by any such party of any rights, benefits, obligations or
interests assigned to or created in favor of such party pursuant to the foregoing and any remedies arising in connection therewith and (c) each of the Selling Parties may, without Buyer’s prior written consent, assign or transfer its
rights under Section 8.2(c) hereof to one or more of the Partnership Entities and, if so assigned or transferred, any such Partnership Entity shall be entitled to enforce the rights hereunder so transferred or assigned as if it were a
named party hereto, but no such transfer or assignment shall relieve the Selling Parties of their obligations under Section 8.2(c) and no such assignee or transferee may further assign any such rights. 
  
 SECTION 9.3. Investment Bankers, Financial Advisors, Brokers and Finders.

  
 (a) The Selling Parties shall indemnify and agree to
defend and hold Buyer and the Partnership Entities harmless against and in respect of all claims, losses, liabilities and expenses which may be asserted against Buyer (or any Affiliate of Buyer) and the Partnership Entities by any broker or other
person who claims to be entitled to an investment banker’s, financial advisor’s, broker’s, finder’s or similar fee or commission in respect of the execution of this Agreement or the consummation of the transactions contemplated
hereby, by reason of his acting at the request of Parent, the Selling Parties or the Partnership Entities. 
  
 (b) Buyer shall indemnify and agree to save and hold the Selling Parties (and their Affiliates) harmless against and in respect of all claims, losses,
liabilities, fees, costs and expenses which may be asserted against any of the Selling Parties (or any of their Affiliates) by any broker or other person who claims to be entitled to an investment banker’s, financial advisor’s,
broker’s, finder’s or similar fee or commission in respect of the execution of this Agreement or the consummation of the transactions contemplated hereby, by reason of his acting at the request of Buyer. 
  

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 SECTION 9.4. Fees and Expenses. 
  
 Except as otherwise expressly provided in this Agreement, all legal, accounting and other fees, costs and expenses of a
party hereto incurred in connection with this Agreement and the transactions contemplated hereby shall be paid by the party incurring such fees, costs or expenses. 
  
 SECTION 9.5. Off-Set Right. 
  

From and after the Closing, the Selling Parties agree and acknowledge that Buyer and the Partnership Entities shall have a right to off-set any
payments to be made by Buyer or any of the Partnership Entities pursuant to this Agreement or the Transition Services Agreement against any payments owed by the Selling Parties, Parent or any direct or indirect wholly owned subsidiary of Parent to
Buyer or any of the Partnership Entities in respect of (i) the proviso set forth in the final sentence of Section 4.3(l) hereof, (ii) undisputed trade receivables, (iii) services provided by the Partnership Entities to the
Selling Parties or Parent (or any direct or indirect wholly owned subsidiary of Parent) under the Services Agreement referred to in Section 1.2(a)(iv)(4) or (iv) any other amounts determined by a final and non-appealable judgment to
be owed by any such parties; provided, however, that without the express prior written consent of the Selling Parties or Parent, neither the Buyer nor any of the Partnership Entities shall have a right hereunder to set-off against any other
amount that may become payable to the Buyer under this Agreement, any other agreement or otherwise. The right of off-set provided for in this paragraph is in addition to, and not in limitation of, any other right or remedy available to Buyer or to
the Partnership Entities under this Agreement, the Transaction Documents, or any other agreement, under applicable law, in equity, or otherwise. 
  
 SECTION 9.6. Notices. 
  
 All notices and other communications given or made pursuant hereto shall be in writing and shall be deemed to have been duly given or made if delivered
personally or sent by overnight courier or sent by facsimile (with evidence of confirmation of receipt) to the parties at the following addresses: 
  
 (a) If to Buyer, to: 
  
 Madison Dearborn Partners, LLC 
 Three First National Plaza 
 Suite 3800 
 Chicago, Illinois 60602 
 Facsimile: (312) 895-1206 
 Attention: Justin S. Huscher 
  

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 and to: 
  
 Carlyle/Riverstone Global Energy and Power Fund II, LP 
 712 Fifth Avenue 
 19th Floor 
 New York, New York 10019 
 Facsimile: (212) 993-0077 
 Attention: Pierre Lapeyre 
  
 with a copy to: 
  
 Vinson & Elkins L.L.P. 
 666 Fifth Avenue 
 26th Floor 
 New York, New York 10103

 Facsimile: (917) 206-8100 
 Attention: Mike Rosenwasser 
  
 (b) If to the Selling Parties, to: 
  
 Williams Energy Services, LLC and 
 Williams Natural Gas Liquids, Inc. 
 One Williams Center 
 Tulsa, Oklahoma 74172 
 Facsimile: (918) 573-6928 
 Attention: Lonny Townsend 
  
 with a copy to: 
  
 Andrews & Kurth L.L.P. 
 600 Travis, Suite 4200 
 Houston, Texas 77002 
 Facsimile: (713) 220-4285 
 Attention: G. Michael O’Leary 
  
 or to such other Persons or at such other addresses as shall be furnished by any party by like notice to the other, and such notice or communication shall be deemed to
have been given or made as of the date so delivered or mailed. No change in any of such addresses shall be effective insofar as notices under this Section 9.6 are concerned unless such changed address is located in the United States of
America and notice of such change shall have been given to such other party hereto as provided in this Section 9.6. 
  
 SECTION 9.7. Entire Agreement. 
  
 This Agreement, together with the Disclosure Schedules and the Exhibits hereto, the Confidentiality Agreement and the Transaction Documents represent the
entire agreement and understanding of the parties with reference to the transactions set forth herein and therein and no 
  

 -61- 

 representations or warranties have been made in connection herewith and therewith other than those expressly set forth
herein or therein. This Agreement, together with the Disclosure Schedules and the Exhibits hereto, the Confidentiality Agreement and the Transaction Documents supersede all prior negotiations, discussions, correspondence, communications,
understandings and agreements between the parties relating to the subject matter hereof or thereof and all prior drafts of such documents, all of which are merged into such documents. No prior drafts of such documents and no words or phrases from
any such prior drafts shall be admissible into evidence in any action or suit involving such documents. 
  
 SECTION 9.8. Waivers and Amendments. 
  
 The Selling Parties or Buyer may, by written notice to the other party: (a) extend the time for the performance of any of the obligations or other
actions of the other party; (b) waive any inaccuracies in the representations or warranties of the other party contained in this Agreement or in any document delivered pursuant to this Agreement by the other party; (c) waive compliance
with any of the covenants of the other party contained in this Agreement; (d) waive performance of any of the obligations of the other party created under this Agreement; or (e) waive fulfillment of any of the conditions to its own
obligations under this Agreement or in any documents delivered pursuant to this Agreement by the other party. The waiver by any party hereto of a breach of any provision of this Agreement shall not operate or be construed as a waiver of any
subsequent breach, whether or not similar, unless such waiver specifically states that it is to be construed as a continuing waiver. This Agreement may be amended, modified or supplemented only by a written instrument executed by the parties hereto.

  
 SECTION 9.9. Severability. 
  
 This Agreement shall be deemed severable, and the invalidity or
unenforceability of any term or provision hereof shall not affect the validity or enforceability of this Agreement or of any other term or provision hereof. Furthermore, in lieu of any such invalid or unenforceable term or provision, the parties
hereto intend that there shall be added as a part of this Agreement a provision as similar in terms to such invalid or unenforceable provision as may be possible and be valid and enforceable. 
  
 SECTION 9.10. Titles and Headings. 
  
 The Article and Section headings and any table of contents contained in this
Agreement are solely for convenience of reference and shall not affect the meaning or interpretation of this Agreement or of any term or provision hereof. 
  
 SECTION 9.11. Signatures and 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 the Selling Parties, 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. 
  

 -62- 

 SECTION 9.12. Enforcement of the Agreement; Damages. 
  
 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 hereto, this being in addition to any other remedy to which they are entitled at law or in equity. 
  
 SECTION 9.13. Governing Law. 
  
 This Agreement shall be governed by 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. 
  
 SECTION 9.14. Disclosure. 
  
 Certain information set forth in the Disclosure Schedules is included solely for informational purposes, is not an admission of liability with respect to the matters covered by the information, and may not be required to be disclosed
pursuant to this Agreement. Disclosure of any item in any section of the Disclosure Schedules only qualifies (i) the correspondingly numbered representation and warranty or covenant in this Agreement to the extent specified therein and
(ii) such other representations and warranties or covenants in this Agreement that are qualified by another Disclosure Schedule (or section of a Disclosure Schedule), but only to the extent (a) there is an explicit cross-reference in such
other Disclosure Schedule (or section of a Disclosure Schedule, as applicable) or (b) such item is disclosed in such a way as to make its relevance to the information called for by such other Disclosure Schedule (or section of a Disclosure
Schedule, as applicable) readily apparent on its face. The specification of any dollar amount in the representations and warranties contained in this Agreement or the inclusion of any specific item in the Disclosure Schedules is not intended to
imply that such amounts (or higher or lower amounts) are or are not material, and no party shall use the fact of the setting of such amounts or the fact of the inclusion of any such item in the Disclosure Schedules in any dispute or controversy
between the parties as to whether any obligation, item, or matter not described herein or included in a Disclosure Schedule is or is not material for purposes of this Agreement. 
  
 SECTION 9.15. Consent to Jurisdiction. 
  
 The parties hereby irrevocably submit to the jurisdiction of the courts of the State of New York and the federal courts
of the United States of America located in New York, New York over any dispute arising out of or relating to this Agreement or any of the transactions contemplated hereby, and each party irrevocably agrees that all claims in respect of such
dispute or proceeding shall be heard and determined in such courts. The parties hereby irrevocably waive, to the fullest extent permitted by applicable law, any objection which they may now or hereafter have to the venue of any dispute arising out
of or relating to this Agreement or any of the transactions contemplated hereby brought in such court or any defense of inconvenient forum for the maintenance of such dispute. Each party agrees that a judgment in any dispute heard in the venue
specified by this section may be enforced in other jurisdictions by suit on the judgment or in any other manner provided by applicable law. 
  

 -63- 

 SECTION 9.16. Certain Definitions. 
  
 For purposes of this Agreement, the term: 
  
 (a) “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. 
  
 (b) “Assignment and Assumption Agreement” means the Assignment, Assumption and Amendment Agreement, dated November 15, 2002, among the Selling Parties, the New Company and the Partnership.

  
 (c) “Closing Price” means the average of the
daily closing prices of the Common Units for the ten (10) consecutive days the Common Units were trading on the New York Stock Exchange immediately prior to the applicable date. 
  
 (d) “Confidentiality Agreement” means, collectively, the Nondisclosure Agreement among WES, WNGL and
Madison Dearborn Partners, LLC, dated September 3, 2002, and the Nondisclosure Agreement among WES, WNGL and Riverstone Holdings, LLC, dated October 29, 2002. 
  
 (e) “Intellectual Property” shall mean and include all intellectual property of any kind, both foreign and
domestic, including, without limitation, all patents, trademarks, service marks, trade names, trade dress, (and the goodwill associated with each), copyrights, confidential and proprietary information (including trade secrets and know-how), and
registrations and applications for registration of any of the foregoing. Intellectual Property does not include any software, whether owned or licensed, or any copyrights associated with Licensed Software. 
  
 (f) “Key Executives” means those individuals as previously
provided in writing to Buyer from the Selling Parties. 
  
 (g)
“Knowledge of the Selling Parties” shall mean the actual knowledge, after reasonable inquiry, of J. Chandler, B. Hagy, B. Hayes, M. Little, T. McCoy, M. Mears, R. Olsen, C. Rich, J. Strief, A Sheridan, J. Walkup,
D. Wellendorf, J. Wiese, J. Willis and P. Wright. 
  
 (h) “Material Adverse Effect” shall mean an adverse effect on the assets, properties, business, operations, financial condition or ability to maintain current levels of Operating Surplus (as defined in the Partnership
Agreement) of the Partnership Entities, taken as a whole, that would have a material adverse effect on the value of the Securities, it being understood that none of the following shall be deemed to constitute a Material Adverse Effect: (i) any
effect resulting from entering into this Agreement or the announcement of the transactions contemplated by this Agreement, (ii) any effect resulting from changes in general economic conditions in the industry in which any of the Partnership
Entities operates, and (iii) any effect resulting from changes in the United States or global economy as a whole, unless in the case of clause (ii) or (iii) above such change has a disproportionately adverse effect on the Partnership
Entities, taken as a whole. 
  

 -64- 

 (i) “Old Omnibus Agreement” means the Omnibus Agreement, dated February 9, 2001, by
and among Parent, the Selling Parties, the Partnership and the other parties named therein, as amended by Amendment I, dated as of January 28, 2002, and the Second and Third Amendments thereto, dated as of April 11, 2002 and
September 30, 2002, respectively. 
  
 (j)
“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. 
  
 (k) “Parent Credit
Facility” means (i) the First Amended and Restated Credit Agreement, dated as of October 31, 2002, among the Parent, Northwest Pipeline Corporation, Transcontinental Gas Pipe Line Corporation and Texas Gas Transmission
Corporation, as Borrowers, the Banks named therein, JPMorgan Chase Bank and Commerzbank AG, as Co-Syndication Agents, Credit Lyonnais New York Branch, as Documentation Agent, Citicorp USA, Inc., as Agent and Salomon Smith Barney, Inc., as Arranger,
and (ii) the Amended and Restated Credit Agreement, dated as of October 31, 2002, among the Parent, as Borrower, Citicorp USA, Inc., as Agent and Collateral Agent, Bank of America, N.A., as Syndication Agent, Citibank, N.A., Bank of
America N.A., and Bank of Nova Scotia, as Issuing Banks and Solomon Smith Barney, Inc., as Arranger, each as amended from time to time. 
  
 (l) “Parent Credit Facility Liens” means any lien on the Securities or any other security or interest in any of the Partnership Entities,
or on any asset or property of any of the Partnership Entities pursuant to, or created in connection with, the Parent Credit Facility or any Parent Credit Facility Security Document. 
  
 (m) “Parent Credit Facility Security Documents” means (i) the Security Agreement, dated as of
July 31, 2002, among the Parent and certain subsidiaries of the Parent party thereto, in favor of Citibank, N.A., as Collateral Trustee, as amended from time to time, (ii) the Pledge Agreement, dated as of July 31, 2002, among the
Parent and certain subsidiaries of the Parent party thereto, in favor of Citibank, N.A., as Collateral Trustee, as amended from time to time, (iii) the Collateral Trust Agreement, dated as of July 31, 2002, among the Parent and certain
subsidiaries of the Parent party thereto, and Citibank, N.A., as Collateral Trustee, as amended from time to time, (iv) the Guaranty, dated as of July 31, 2002, made by each of the subsidiaries of the Parent that is a signatory thereto, in
favor of Citibank, N.A., as Surety Administrative Agent and (v) any other contract, agreement or other instrument relating to or entered into in connection with the Parent Credit Facility and binding upon the any of the Partnership Entities or
any of their respective securities, interests (including the Securities), properties or assets. 
  
 (n) “Partnership Group” means the Partnership Entities, with the exception of the New Company. 
  
 (o) “Person” shall mean an individual, corporation,
association, trust, limited liability company, limited partnership, limited liability partnership, partnership, incorporated organization, other entity or group (as defined in Section 13(d)(3) of the Exchange Act). 
  

 -65- 

 (p) “Transaction Documents” shall mean the agreements, contracts, documents, instruments
and certificates provided for in this Agreement to be entered into by one or more of the parties hereto or any of their Affiliates in connection with the transactions contemplated by this Agreement, including without limitation the Transition
Services Agreement, the Services Agreement referred to in Sections 1.2(a)(iv)(4) and 1.2(b)(vi), the ATLAS Assignment, Contribution and License Agreement, the New Omnibus Agreement, the Bills of Sale, the Parent Guaranty and the
written document referred to in Section 9.16(f). 
  
 (q) “WPL Contribution Agreement” means the Contribution Agreement, dated April 11, 2002, by and among WES, the Old Company and the Partnership. 
  

 -66- 

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

  

					
	         SELLING 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

		
	 	 	 WILLIAMS GP LLC

			
	 	 	 By:
	 	WILLIAMS ENERGY SERVICES, LLC and
WILLIAMS NATURAL GAS LIQUIDS, INC.,
its Members
			
	 	 	 By:
	 	 /s/ Phillip D. Wright

			
	 	 	 Name:
	 	 Phillip D. Wright

			
	 	 	 Title:
	 	 Authorized Signatory

		
	         BUYER:
	 	 WEG ACQUISITIONS, L.P.

			
	 	 	 By:
	 	 WEG Acquisition Management, LLC

		
	 	 	 Its General Partner

			
	 	 	 By:
	 	 /s/ Pierre F. Lapeyre, Jr.

			
	 	 	 Name:
	 	 Pierre F. Lapeyre, Jr.

			
	 	 	 Title:
	 	 Authorized Signatory

			
	 	 	 By:
	 	 /s/ Justin S. Huscher

			
	 	 	 Name:
	 	 Justin S. Huscher

			
	 	 	 Title:
	 	 Authorized Signatory

  

 -67- 

 DISCLOSURE SCHEDULES 
  
 dated as of April 18, 2003 
  
 for 
  
 PURCHASE AGREEMENT 
  
 by and among 
  
 WILLIAMS ENERGY SERVICES, LLC 
  
 WILLIAMS NATURAL GAS LIQUIDS, INC., and 
  
 WILLIAMS GP LLC 
  
 collectively, as Selling Parties, 
  
 and

  
 WEG ACQUISITIONS, L.P. 
  
 Dated as of April 18, 2003 (the “Agreement”) 

 
 Unless otherwise defined in these Disclosure Schedules, all capitalized
terms used herein shall have the meanings ascribed to them in the Agreement. These Disclosure Schedules shall be deemed to be part of the Agreement. 
  
 The inclusion of information in these Schedules shall not be construed as an admission of liability to any third party with respect to the matters covered
by the information. Any matter or item disclosed on any Disclosure Schedule shall not be deemed to be material (whether singularly or in the aggregate) or deemed to give rise to circumstances which may result in a Material Adverse Effect solely by
reason of it being so disclosed herein. Disclosure of any item in any section of these Schedules only qualifies (i) the correspondingly numbered representation and warranty or covenant in the Agreement to the extent specified therein and
(ii) such other representations and warranties or covenants in the Agreement that are qualified by another Schedule (or section of a Schedule), but only to the extent (a) there is an explicit cross-reference in such other Schedule (or
section of a Schedule, as applicable) or (b) such item is disclosed in such a way as to make its relevance to the information called for by such other Schedule (or section of a Schedule, as applicable) readily apparent on its face. 

 
 These Disclosure Schedules supersede and replace any other Disclosure
Schedules previously provided to Buyer prior to the date of this Agreement. Any such earlier Disclosure Schedules have no force or effect. 

 Index of Defined Terms 
  

			
	 	  	Page

	 2002 10-K
	  	16
	 Additional Employees
	  	28
	 Additional Partnership Indemnity Agreements
	  	51
	 Affiliate
	  	63
	 Agreement
	  	1
	 Assignment and Assumption Agreement
	  	63
	 ATLAS 2000 System
	  	15
	 ATLAS Assignment, Contribution and License Agreement
	  	38
	 Bidder Confidentiality Agreements
	  	36
	 Bills of Sale
	  	4
	 Bonds
	  	37
	 Business Employees
	  	18
	 Buyer
	  	1
	 Buyer 125 Plan
	  	31
	 Buyer Indemnified Parties
	  	51
	 Buyer Representatives
	  	27
	 Buyer Savings Plan
	  	31
	 Cap
	  	54
	 CERCLA
	  	21
	 Class B Common Units
	  	1
	 Closing
	  	3
	 Closing Date
	  	3
	 Closing Price
	  	63
	 Code
	  	13
	 Common Units
	  	1
	 Confidentiality Agreement
	  	63
	 Consent Decree
	  	33
	 Deductible
	  	54
	 Definitive Transaction Agreement
	  	44
	 Delaware LP Act
	  	9
	 Disclosure Schedule Update
	  	35
	 Dispute List
	  	39
	 Employee Plans
	  	18
	 Employee Transfer Date
	  	30
	 Encumbrances
	  	2
	 Environmental Law
	  	21
	 Environmental Permits
	  	20
	 ERISA
	  	17
	 Exchange Act
	  	12
	 Excluded Assets
	  	22
	 Expense Limit
	  	43
	 First Payment
	  	5
	 Fourth Payment
	  	7
	 GAAP
	  	11

  

 i 

			
	 GP Companies
	  	1
	 GP Interest
	  	1
	 Governmental Authority
	  	11
	 Hazardous Material
	  	21
	 HSR Act
	  	33
	 IDRs
	  	1
	 Implementation Costs
	  	40
	 Indemnified Party
	  	54
	 Indemnifying Party
	  	54
	 Intellectual Property
	  	63
	 IT Assets
	  	38
	 IT Migration Period
	  	40
	 IT Migration Plan
	  	40
	 IT Migration Team
	  	38
	 Key Executives
	  	63
	 Knowledge of the Selling Parties
	  	63
	 Legal Proceeding
	  	16
	 License
	  	16
	 License Period
	  	42
	 Licensed Software
	  	15
	 Licenses
	  	16
	 Loss
	  	51
	 Losses
	  	51
	 Material Adverse Effect
	  	63
	 Material Contracts
	  	17
	 Maximum Obligation
	  	54
	 Migration Assets
	  	39
	 MTBE
	  	21
	 New Company
	  	1
	 New Company Financial Statements
	  	11
	 New LLC Interests
	  	1
	 New LLC Agreement
	  	8
	 Old Company
	  	1
	 Old Company Subsidiary
	  	10
	 Old Omnibus Agreement
	  	64
	 Organizational Documents
	  	64
	 PACE
	  	18
	 PACE Collective Bargaining Agreement
	  	19
	 Parent
	  	2
	 Parent Credit Facility
	  	64
	 Parent Credit Facility Liens
	  	64
	 Parent Credit Facility Security Documents
	  	60
	 Parent Guaranty
	  	2
	 Parent Policies
	  	19
	 Partnership
	  	1
	 Partnership Agreement
	  	9
	 Partnership Entities
	  	10

  

 ii 

			
	 Partnership Group
	  	64
	 Partnership Plans
	  	18
	 Partnership Policies
	  	19
	 Pension Plan
	  	29
	 Per Day Rate
	  	6
	 Permitted Encumbrances
	  	15
	 Person
	  	64
	 Phantom Units
	  	9
	 Policies
	  	19
	 Pre-Closing Tax
	  	36
	 Property Restrictions
	  	14
	 Purchase Price
	  	5
	 RCRA
	  	21
	 Real Property
	  	14
	 Represented Employee Transfer Date
	  	29
	 Represented Employees
	  	29
	 Rights-of-Way
	  	14
	 SEC
	  	12
	 SEC Reports
	  	12
	 Second Payment
	  	6
	 Securities
	  	2
	 Securities Act
	  	12
	 Seller 125 Plan
	  	31
	 Seller Indemnified Parties
	  	52
	 Seller Plans
	  	18
	 Seller Savings Plan
	  	31
	 Sellers’ Marks
	  	42
	 Selling Parties
	  	1
	 Solvent
	  	22
	 Subordinated Units
	  	1
	 Substituted Assets
	  	39
	 Tax
	  	12
	 Tax Returns
	  	12
	 Taxes
	  	12
	 Technology Consultant
	  	39
	 Third Payment
	  	6
	 Transaction Documents
	  	65
	 Transfer Agent
	  	3
	 Transfer Taxes
	  	37
	 Transferred Assets
	  	39
	 Transferred Employees
	  	29
	 Transferred Licensed Software
	  	41
	 Transition Services Agreement
	  	35
	 Unit Transfer Application(s)
	  	5
	 VEBA
	  	30
	 WARN
	  	33
	 WES
	  	1

  

 iii 

			
	 WES Bill of Sale
	  	3
	 WES Common Units
	  	1
	 WES New LLC Interests
	  	1
	 WES Subordinated Units
	  	1
	 WES Units
	  	1
	 WNGL
	  	1
	 WNGL Bill of Sale
	  	4
	 WNGL Common Units
	  	1
	 WNGL New LLC Interests
	  	1
	 WNGL Subordinated Units
	  	1
	 WNGL Units
	  	1
	 WPL Contribution Agreement
	  	65

  

 iv

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