EXHIBIT 10.12

                                                                [EXECUTION COPY]



                          CONSENT AND FOURTH AMENDMENT

                            DATED AS OF JULY 31, 2002

                          THE WILLIAMS COMPANIES, INC.
                           MULTI-YEAR CREDIT AGREEMENT



                  CONSENT AND FOURTH AMENDMENT TO THE CREDIT AGREEMENT (this
"AGREEMENT"), dated as of July 31, 2002 is entered into by and among the
Borrowers party to the Credit Agreement (as hereinafter defined), the Banks from
time to time party to the Credit Agreement, the Co-Syndication Agents as named
therein, the Documentation Agent as named therein and Citibank, N.A., as agent
for the Banks (in such capacity, the "AGENT"). Except as otherwise defined or as
the context requires, terms defined in the Credit Agreement are used herein as
therein defined.

                                   WITNESSETH

                  WHEREAS, The Williams Companies, Inc., a Delaware corporation
("TWC"), Northwest Pipeline Corporation, a Delaware corporation ("NWP"),
Transcontinental Gas Pipe Line Corporation ("TGPL") a Delaware corporation, and
Texas Gas Transmission Corporation, a Delaware corporation ("TGT"; TWC, NWP,
TGPL and TGT each a "BORROWER" and collectively, the "BORROWERS") have entered
into a certain Credit Agreement dated as of July 25, 2000 with the financial
institutions from time to time party thereto (the "BANKS'), The Chase Manhattan
Bank and Commerzbank AG, as Co-Syndication Agents, Credit Lyonnais New York
Branch, as Documentation Agent, and Citibank, N.A., as Agent, as amended by a
letter agreement dated as of October 10, 2000, by a Waiver and First Amendment
to Credit Agreement dated as of January 31, 2001, by a Second Amendment to
Credit Agreement dated as of February 7, 2002 and by a Third Amendment to Credit
Agreement dated as of March 11, 2002 (the "CREDIT AGREEMENT").

                  WHEREAS, the Borrowers have requested that the Banks party
hereto, constituting not less than the Majority Banks, consent to the TWC Asset
Dispositions (as defined herein), and provide certain amendments to the terms
and conditions of the Credit Agreement;


                  WHEREAS, the Banks party hereto are willing to grant the
requests of the Borrowers as hereinafter set forth;

                  NOW, THEREFORE, for good and valuable consideration, the
receipt and sufficiency of which is hereby acknowledged, and subject to the
terms and conditions hereof, the parties hereto agree as follows:



                                       2


                  SECTION 1. Consent. The Banks party hereto consent to (i) the
sale by the Borrowers or by any of their Subsidiaries of (1) WPC (the "CENTRAL
PIPELINES ASSET DISPOSITION"), (2) MAPL (the "MAPL ASSET DISPOSITION"), (3)
Seminole (the "SEMINOLE ASSET DISPOSITION"), (4) the Refineries (the "REFINERIES
ASSET DISPOSITION"), (5) Soda Ash (the "SODA ASH ASSET DISPOSITION"), (6)
TravelCenters (the "TRAVELCENTERS ASSET DISPOSITION"), and (7) Bio-Energy (the
"BIO-ENERGY ASSET DISPOSITION", together with the Central Pipelines Asset
Disposition, MAPL Asset Disposition and Seminole Asset Disposition, Refineries
Asset Disposition, Soda Ash Disposition and TravelCenters Asset Disposition, the
"TWC ASSET DISPOSITIONS"), (ii) the LLC Guaranty, Midstream Guaranty, and the
Holdings Guaranty, and (iii) the execution and delivery of and performance by
RMT, TWC and RMT LLC and their subsidiaries party thereto of the Barrett Loan
Agreement and the transactions related thereto or contemplated thereby.

                  SECTION 2. Amendments to Credit Agreement. The Credit
Agreement is, effective as of the date hereof and subject to the satisfaction of
the Conditions of Effectiveness set forth in Section 3, hereby amended as
follows:

                  (a) Section 1.01 of the Credit Agreement is hereby amended by
         replacing the definition of "Chase" with the following:

                           "Chase" means JPMorgan Chase Bank.

                  (b) Section 1.01 of the Credit Agreement is hereby amended by
         deleting the following definitions thereto: "Permitted NWP Liens",
         "Permitted TGPL Liens", "Permitted TGT Liens" and "Permitted TWC
         Liens";

                  (c) Section 1.01 of the Credit Agreement is hereby amended by
         inserting, or replacing as applicable, the following definitions in
         proper alphabetical order:

                  "Acceptable Security Interest" in any property shall mean a
         Lien granted pursuant to a Credit Document (a) which exists in favor of
         either (i) the Collateral Trustee for the benefit of itself and other
         parties, as more fully described in the Collateral Trust Agreement, or
         (ii) the Collateral Agent for the benefit of itself, the Issuing Banks,
         the "Agent" and the "Banks" (each as defined in the L/C Agreement), (b)
         which is superior to all other Liens, except Permitted Liens, (c) which
         secures (i) the "Secured Obligations" (as defined in the Security
         Agreement), and/or (ii) the "Obligations" (as defined in the L/C
         Agreement), and (d) which is perfected and is enforceable by either (i)
         the Collateral Trustee for the benefit of itself and other parties, as
         more fully described in the Collateral Trust Agreement or (ii) the
         Collateral Agent, for the benefit of itself, the Issuing Banks, "Agent"
         and the "Banks" (each as defined in the L/C Agreement), against all
         other Persons in preference to any rights of any such other Person
         therein; provided that such Lien may be subject to the Agreed
         Exceptions.

                  "Agreed Exceptions" means exceptions to title to be set forth
         in the "Mortgage" (as defined in the L/C Agreement) that are customary
         in similar mortgages, do not




                                       3


         materially detract from the value of the assets covered thereby, do not
         secure Debt and arise in the ordinary course of business.

                  "Applicable Margin" means as to any Eurodollar Rate Advance or
         Base Rate Advance to any Borrower, the rate per annum set forth in the
         applicable table on Schedule XI under the heading "Applicable Margin"
         for the relevant Rating Category applicable to TWC. The Applicable
         Margin determined pursuant to this definition for any Eurodollar Rate
         Advance or Base Rate Advance, as applicable, shall change when and as
         the relevant Rating Category applicable to TWC changes.

                  "Asset" or "property" (in each case, whether or not
         capitalized) means any right, title or interest in any kind of property
         or asset, whether real, personal or mixed, and whether tangible or
         intangible.

                  "Attributable Obligation" of any Person means, with respect to
         any Sale and Lease-Back Transaction of such Person as of any particular
         time, the present value at such time discounted at the rate of interest
         implicit in the terms of the lease of the obligations of the lessee
         under such lease for net rental payments during the remaining term of
         the lease (including any period for which such lease has been extended
         or may, at the option of such Person, be extended).

                  "Barrett Loan" means the loans made pursuant Barrett Loan
         Agreement.

                  "Barrett Loan Agreement" means the Credit Agreement dated July
         31, 2002, among TWC, RMT LLC, RMT, the Lenders party thereto from time
         to time, Lehman Brothers Inc., as Arranger, and Lehman Commercial Paper
         Inc., as Syndication Agent and as Administrative Agent.

                  "Bio-Energy" means Williams Bio-Energy, L.L.C, Williams
         Ethanol Services, Inc., and Nebraska Energy, L.L.C.

                  "Capital Lease" means a lease that in accordance with
         generally acceptable accounting principles must be reflected on a
         company's balance sheet as an asset and corresponding liability.

                  "Cash Equivalents" means any of the following, to the extent
         owned by a Borrower or any of its Subsidiaries free and clear of all
         Liens other than Liens created under the L/C Collateral Documents and
         having a maturity of not greater than 270 days from the date of
         acquisition thereof: (a) readily marketable direct obligations of the
         Government of the United States or any agency or instrumentality
         thereof or obligations unconditionally guaranteed by the full faith and
         credit of the Government of the United States, (b) insured certificates
         of deposit of or time deposits with any commercial bank that is a
         Lender Party or a member of the Federal Reserve System, issues (or the
         parent of which issues) commercial paper rated as described in clause
         (c) below, is organized under the laws of the United States or any
         State thereof and has combined capital and surplus of at least $1
         billion or (c) commercial paper in an aggregate amount of no more than
         $500,000,000, per issuer outstanding at any time, issued by any
         corporation organized



                                       4



         under the laws of any State of the United States and rated at least
         "Prime-1" (or the then equivalent grade) by Moody's Investors Service,
         Inc. or "A-1" (or the then equivalent grade) by Standard & Poor's, a
         division of The McGraw-Hill Companies, Inc.

                  "Cash Flow" means, for any period, the Consolidated cash flow
         from operations of a Borrower and its Subsidiaries for such period
         determined in accordance with generally accepted accounting principles;
         provided that in determining such Consolidated cash flow from
         operations, there shall be excluded therefrom (to the extent otherwise
         included therein) (a) any positive cash flow from operations of any
         Person (including Project Financing Subsidiaries) subject to any
         restriction prohibiting the distribution of cash to such Borrower or
         any of its Subsidiaries, except and then only to the extent of the
         amount thereof that such Borrower or any of its Subsidiaries actually
         receives or has the right to receive (within the limits of such
         restrictions) during such period, (b) proceeds resulting from the sale,
         transfer or other disposition of any property by such Borrower or its
         Subsidiaries (other than sales, transfers and other dispositions in the
         ordinary course of business), (c) all other extraordinary items, (d)
         any item constituting the cumulative effect of a change in accounting
         principles, prior to applicable income taxes, (e) repayment of the WCG
         Synthetic Lease and (f) for the third Fiscal Quarter of 2002 only,
         margin and capital or adequate assurances relating to its refining and
         marketing and EMT.

                  "Citibank" means Citibank, N.A.

                  "Collateral" shall have the meaning specified in Section 1.1
         of the L/C Agreement.

                  "Collateral Agent" means Citibank in its capacity as
         "Collateral Agent" pursuant to the L/C Collateral Documents and the L/C
         Agreement.

                  "Collateral Trust Agreement" means that certain Collateral
         Trust Agreement dated as of July 31, 2002 by and among the TWC, several
         of its Subsidiaries and the Collateral Trustee.

                  "Collateral Trustee" means CUSA in its capacity as "Collateral
         Trustee" pursuant to the Collateral Trust Agreement.

                  "Consent and Fourth Amendment" means that certain Consent and
         Fourth Amendment dated as of July 31, 2002 among the Borrowers, Banks,
         Co-Syndication Agents, Document Agent, Agent and Arranger.

                  "Consolidated" refers to the consolidation of the accounts of
         any Person and its consolidated subsidiaries in accordance with
         generally accepted accounting principles.

                  "Contractual Obligation" means as to any Person, any provision
         of any security issued by such Person or of any agreement, instrument
         or other undertaking to which such Person is a party or by which it or
         any of its property is bound.

                  "Credit Documents" means this Agreement, the L/C Agreement,
         the L/C Collateral Documents, the Letter of Credit Documents, each
         Letter of Credit, all


                                       5



         documents, instruments, agreements, certificates and notices at any
         time executed and/or delivered to the Agent, any Issuing Bank, or any
         Bank in connection therewith.

                  "CUSA" means Citicorp USA, Inc.

                  "Debt" means, in the case of any Person, the principal or
         equivalent amount of (i) indebtedness of such Person for borrowed
         money, (ii) obligations of such Person evidenced by bonds, debentures,
         notes or similar instruments, (iii) obligations of such Person to pay
         the deferred purchase price of property or services (other than trade
         payables not overdue by more than 60 days incurred in the ordinary
         course of business), (iv) obligations of such Person as lessee under
         leases that are, in accordance with generally accepted accounting
         principles, recorded as capital leases, (v) payments necessary to
         exercise a purchase option with respect to the property used by such
         Person and encumbered by a Synthetic Lease with such Person as lessee,
         excluding any portion of such amount representing accrued interest,
         transfer taxes or other ancillary items, (vi) obligations of such
         Person under any Financing Transaction, (vii) indebtedness incurred
         after the date of the Consent and Fourth Amendment of the Subsidiaries
         of such Person, and indebtedness incurred after the date of this
         Agreement of any other entity that has been created or utilized,
         directly or indirectly, for financing purposes of such Person or any of
         its Subsidiaries, (viii) obligations of such Person under guaranties in
         respect of, and obligations (contingent or otherwise) to purchase or
         otherwise acquire, or otherwise to assure a creditor against loss in
         respect of indebtedness or obligations of others of the kinds referred
         to in clauses (i) through (vii) of this definition, (ix) indebtedness
         or obligations of others of the kinds referred to in clauses (i)
         through (viii) of this definition secured by any Lien on or in respect
         of any property of such Person and (x) any Attributable Obligations of
         such Person; provided, however, that Debt shall not include (w) any
         obligations of TWC in respect of the FELINE PACS; (x) Non-Recourse
         Debt; (y) Performance Guaranties, (z) monetary obligations or
         guaranties of monetary obligations of Persons as lessee under leases
         (other than, to the extent provided herein above, Synthetic Leases)
         that are, in accordance with generally accepted accounting principles,
         recorded as operating leases and (aa) guarantees by such Person of
         obligations of others which are not obligations described in clauses
         (i) through (x) of this definition, and provided further that where any
         such indebtedness or obligation of such Person is made jointly, or
         jointly and severally, with any third party or parties other than any
         Subsidiary of such Person, the amount thereof for the purpose of this
         definition only shall be the pro rata portion thereof payable by such
         Person, so long as such third party or parties have not defaulted on
         its or their joint and several portions thereof and can reasonably be
         expected to perform its or their obligations thereunder. For the
         avoidance of doubt, "Debt" shall not include the Letters of Credit.

                  "Designated Midstream Subsidiaries" means Nebraska Energy,
         L.L.C; Rio Grande Pipeline Company; Baton Rouge Fractionators, L.L.C;
         Williams Lynxs Alaska CargoPort, L.L.C; Tri-States NGL Pipeline, L.L.C;
         WILPRISE Pipeline Company, L.L.C.; Williams Mobile Bay Producer
         Services, L.L.C; Williams Energy Partners L. P.; Williams Alaska Air
         Cargo Properties, L.L.C; and Williams GP LLC.

                  "EMT" means Williams Energy Marketing & Trading Company.



                                       6



                  "Environmental Permits" mean any and all material permits,
         licenses, registrations, notifications, exemptions and any other
         authorization required under any Environmental Protection Statutes.

                  "Equity Interests" means any capital stock, partnership, joint
         venture, member or limited liability or unlimited liability company
         interest, beneficial interest in a trust or similar entity or other
         equity interest or investment of whatever nature.

                  "Excess Amount" has the meaning specified in Section 2.04(c).

                  "Excluded Collateral" means (i) all personal and real property
         owned by RMT LLC, WGPC and the Designated Midstream Subsidiaries and
         (ii) the Excluded Equity Interests.

                  "Excluded Equity Interests" means the Equity Interest in each
         of the Designated Midstream Subsidiaries (other than (i) Williams GP
         LLC and (ii) the Equity Interest of Williams Energy Partners L.P. held
         by Williams Energy Services, LLC and Williams Natural Gas Liquids,
         Inc.) provided, however, as to each Designated Midstream Subsidiary, at
         such time as the Company obtains the consents provided for in Paragraph
         13 of Schedule XIII the Equity Interest of such Designated Midstream
         Subsidiary shall cease to be an "Excluded Equity Interest".

                  "Financing Transaction" means, with respect to any Person, any
         individual or group of related Persons (i) prepaid forward sales of
         oil, gas, minerals or other assets by such Person, (ii) interest rate,
         currency, commodity or other swaps, collars, caps, options or other
         derivatives or (iii) sales or transfers of assets, the primary effect
         of which or an important purpose of which is to receive money or credit
         in advance coupled with an obligation to repay or perform in the future
         to effect repayment thereof, including any contract monetization or
         production payment. Notwithstanding the foregoing, the following
         transactions, if entered into in the ordinary course of business by any
         Borrower or any of its affiliates and otherwise permitted hereunder,
         shall be deemed not to be Financing Transactions: (a) sales or
         exchanges of property fully delivered within 90 days of receipt of the
         first payment by a counterparty therefor, (b) interest rate, currency,
         commodity or other swaps, collars, caps, options or other derivatives
         (including prepayment of forward sales of property by a counterparty of
         any Borrower or any of its affiliates to hedge against the credit risk
         of such counterparty, provided that the forward delivery obligation
         with respect to the property sold must be fully performed within 120
         days), and (c) "riskless" forward sales or exchanges of property
         whereby a third party guarantees the performance obligations of any
         Borrower or any of its affiliates to deliver such property without
         subrogation or other recourse against any Borrower or any of its
         affiliates by any party to the transaction. The term "contract
         monetization" as used in this definition means the acceleration of cash
         flows a contract party expects to receive from such contract pursuant
         to which the contract party retains a significant ongoing obligation to
         perform, but shall in any event exclude transactions commonly referred
         to as securitizations. The term "production payment" as used in this
         definition means a limited-term non-cost bearing right to receive
         produced hydrocarbons or the proceeds therefrom satisfiable in cash or
         in kind up to an aggregate defined amount of cash and/or hydrocarbons.


                                       7



                  "Fiscal Quarter" means any quarter of a Fiscal Year.

                  "Fiscal Year" means any period of twelve consecutive calendar
         months ending on December 31; references to a Fiscal Year with a number
         corresponding to any calendar year (e.g., the "2002 Fiscal Year") refer
         to the Fiscal Year ending on December 31 of such calendar year.

                   "Governmental Authority" means the government of the United
         States, any other nation or any political subdivision thereof, whether
         state or local, and any agency, authority, instrumentality, regulatory
         body, court, central bank or other Person exercising executive,
         legislative, judicial, taxing, regulatory or administrative powers or
         functions of or pertaining to government.

                  "Guaranties" means, collectively the LLC Guaranty, the
         Midstream Guaranty and the Holdings Guaranty.

                  "Hedge Agreements" means interest rate swap, cap or collar
         agreements, interest rate future or option contracts, currency swap
         agreements, currency future or option contracts and other hedging
         obligations.

                  "Holdings Guaranty" means that certain guaranty executed by
         RMT LLC in substantially the form of Exhibit J to the L/C Agreement, as
         amended, supplemented or modified from time to time.

                  "Hydrocarbons" means oil, gas, casinghead gas, condensate,
         distillate, and liquid hydrocarbons.

                  "Interest Expense" means, for any period, the gross interest
         expense (determined in accordance with generally accepted accounting
         principles) of a Borrower and its Consolidated Subsidiaries accrued for
         such period, including that attributable to the capitalized amount of
         obligations owing under Capital Leases, all debt discount amortized in
         such period and all commissions, discounts and other fees and charges
         owed with respect to letters of credit and bankers' acceptance
         financing, net of interest income (determined in accordance with
         generally accepted accounting principles) of a Borrower and its
         Consolidated Subsidiaries, but excluding such interest expense, debt
         discount, commissions, discounts and other fees and charges and
         interest income to the extent attributable to the Non-Recourse Debt of
         Project Financing Subsidiaries.

                  "Investment" in any Person means any loan or advance to such
         Person, any purchase or other acquisition of any Equity Interests or
         Debt or the assets comprising a division or business unit or a
         substantial part or all of the business of such Person, any capital
         contribution to such Person or any other direct or indirect investment
         in such Person, including, without limitation, any acquisition by way
         of a merger or consolidation and any arrangement pursuant to which the
         investor incurs Debt of the types referred to in clause (viii) or (ix)
         of the definition of "Debt" in respect of such Person.



                                       8



                  "Issuing Banks" means Citibank and Bank of America N.A. in
         their capacity as issuers of Letters of Credit.

                  "L/C Agreement" means that certain Credit Agreement as in
         effect on July 31, 2002 among TWC as "Borrower", the "Agent",
         "Collateral Agent", "Syndication Agent", "Issuing Banks", the
         "Arranger", and those certain financial institutions party thereto as
         "Banks".

                  "L/C Collateral Documents" means the "Security Documents" as
         defined in the L/C Agreement.

                  "L/C Facility" means the letter of credit facility under the
         L/C Agreement.

                  "Legacy L/C's" means those outstanding letters of credit as of
         July 31, 2002 as set forth on Schedule XV, to the extent such letters
         of credit have not been cash collateralized.

                  "Letter of Credit" has the meaning specified in Section 1.1 of
         the L/C Agreement.

                  "Letter of Credit Documents" means, with respect to any Letter
         of Credit, collectively, any application therefor and any other
         agreements, instruments, guarantees or other documents (whether general
         in application or applicable only to such Letter of Credit) governing
         or providing for (a) the rights and obligations of the parties
         concerned or at risk with respect to such Letter of Credit or (b) any
         collateral security for any of such obligations, each as the same may
         be modified and supplemented and in effect from time to time.

                  "LLC Guaranty" means that certain guaranty executed by WGPC in
         substantially the form of exhibit G to the L/C Agreement, as amended,
         supplemented or modified from time to time.

                  "Major Subsidiary" means any Subsidiary of a Borrower with
         assets having a book value of $1,000,000,000 or more.

                  "MAPL" means Mid-America Pipeline Company, a Delaware
         corporation.

                  "MAPL Asset Disposition" means the sale, transfer or other
         distribution of the Equity Interests in or Assets of MAPL.

                  "Material Subsidiary" means (i) each Major Subsidiary and each
         other Subsidiary of a Borrower (other than a Project Financing
         Subsidiary) that itself (on an unconsolidated, stand alone basis) owns
         in excess of 5% of the book value of the Consolidated assets of a
         Borrower and its Consolidated Subsidiaries, (ii) each of TGPL, TGT and
         NWP and (iii) each Subsidiary that owns any direct or indirect interest
         in TGPL, TGT and NWP.

                  "Midstream Assets" means all assets now owned or hereafter
         acquired by TWC or any of its Subsidiaries, which are either
         individually, or in conjunction with other Midstream Assets, necessary
         for the conduct of the Midstream Business by TWC and its


                                       9



         Subsidiaries, including the Refineries in Alaska and Tennessee, except
         that "Midstream Assets" shall not include (a) the assets being part of
         either of the MAPL Asset Disposition or Seminole Asset Disposition,
         unless the MAPL Disposition or Seminole Asset Disposition, as
         applicable, shall not have occurred on or prior to the date that is 60
         days from the date of the Consent and Fourth Amendment and (b) any
         Assets of Williams GP LLC, Williams Energy Partners L.P. or any of
         their Subsidiaries.

                  "Midstream Asset MLP" means one or more master limited
         partnerships included in the Consolidated financial statements of TWC
         to which TWC has transferred or shall transfer certain assets relating
         to the Midstream Business as well as certain marine and inland
         terminals and related pipeline systems, including Williams Energy
         Partners L.P.

                  "Midstream Business" means the gathering, marketing,
         dehydrating, treating, processing, fractionating, refining, storing,
         selling and transporting of Hydrocarbons and Refined Hydrocarbons, and
         any business relating thereto.

                  "Midstream Guaranty" means that certain guaranty executed by
         those certain guarantors in substantially the form of exhibit H to the
         L/C Agreement, as amended, supplemented or modified from time to time.

                  "Midstream Subsidiaries" means each Subsidiary of TWC,
         excluding Williams Mobile Bay Producer Services, L.L.C., Williams GP
         LLC, Williams Energy Partners L.P., and each of their Subsidiaries, if
         any, engaged either in whole or in part in the Midstream Business that
         either (1) owns, leases or has possession of Midstream Assets that have
         an aggregate fair market value of $1,000,000 or more, or (2) owns,
         leases or has possession of any Midstream Asset or right that is
         material to the ownership, leasing or operation of the Midstream Assets
         taken as a whole.

                  "Net Cash Proceeds" means, with respect to any sale, transfer
         or other disposition of any asset or the sale or issuance of any equity
         interests (including, without limitation, any capital contribution) by
         any Person, the gross cash proceeds received (including any cash
         received by way of deferred payment pursuant to a promissory note,
         receivable or otherwise, but only as and when received) by or on behalf
         of such Person in connection with such transaction net of only (a)
         reasonable transaction costs, including customary and reasonable
         brokerage commissions, underwriting fees and discounts, legal fees,
         fees paid to accountants and financial advisors, finder's fees and
         other similar fees and commissions, (b) the amount of taxes payable in
         connection with or as a result of such transaction, (c) the amount of
         any Debt by the terms of the agreement or instrument governing such
         Debt (including, without limitation, the Barrett Loan Agreement), that
         is required to be repaid or cash collateralized in the case of letters
         of credit, upon such disposition, including any premium, make-whole or
         breakage amount related thereto, (d) payments of unassumed liabilities
         relating to the assets sold at the time of, or within 60 days after,
         the date of such sale, and provided that such gross proceeds shall not
         include any portion of such gross cash proceeds which a Borrower
         determines in good faith should be reserved for post-closing
         adjustments (including indemnification payments, tax expenses and
         purchase price adjustments, to the extent the Person delivers to the
         Agent a certificate signed by an Officer of such Person as to such
         determination), it



                                       10



         being understood and agreed that on the day that all such post-closing
         adjustments have been determined (which shall not be later than 120
         days following the date of the respective TWC Asset Disposition;
         provided, further that such 120-day period shall be extended to the
         extent any amount of such proceeds is subject to a good faith dispute
         or claim), the amount (if any) by which the reserved amount in respect
         of such sale or disposition exceeds the actual post-closing adjustments
         payable by such Person shall constitute Net Cash Proceeds on such date
         received by such Person from such sale, lease, transfer or other
         disposition.

                  "Net Worth" of any Person means, as of any date of
         determination, the excess of total assets of such Person plus all
         non-cash losses resulting from the write-down or disposition of the
         Trading Book over total liabilities of such Person, total assets and
         total liabilities each to be determined in accordance with generally
         accepted accounting principles; provided, however, that for purposes of
         calculating Net Worth, total liabilities shall not include any
         obligations of the Borrower in respect of the FELINE PACS.

                  "Non-Recourse Debt" means (i) any Debt incurred by any Project
         Financing Subsidiary to finance the acquisition (other than the
         acquisition from a Borrower or any Subsidiary of such Borrower that is
         not a Project Financing Subsidiary), improvement, installation, design,
         engineering, construction, development, completion, maintenance or
         operation of, or otherwise to pay costs and expenses relating to or
         providing financing for, a project listed on Schedule VI to the L/C
         Agreement or any new project commenced or acquired after the date
         hereof, which Debt does not provide for recourse against a Borrower or
         any Subsidiary of such Borrower (other than a Project Financing
         Subsidiary and such recourse as exists under a Performance Guaranty) or
         any property or asset of a Borrower or any Subsidiary of such Borrower
         (other than the property or assets of a Project Financing Subsidiary)
         and (ii) any refinancing of such Debt that does not increase the
         outstanding principal amount thereof at the time of the refinancing or
         increase the property subject to any Lien securing such Debt or
         otherwise add additional security or support for such Debt.

                  "Performance Guaranty" means any guaranty issued in connection
         with any Non-Recourse Debt that (i) if secured, is secured only by
         assets of, or Equity Interests in, a Project Financing Subsidiary, and
         (ii) guarantees to the provider of such Non-Recourse Debt or any other
         Person of the (a) performance of the improvement, installation, design,
         engineering, construction, acquisition, development, completion,
         maintenance or operation of, or otherwise affects any such act in
         respect of, all or any portion of the project that is financed by such
         Non-Recourse Debt, (b) completion of the minimum agreed equity
         contributions to the relevant Project Finance Subsidiary, or (c)
         performance by a Project Financing Subsidiary of obligations to Persons
         other than the provider of such Non-Recourse Debt.

                  "Permitted Liens" means Liens specifically described on
         Schedule VI.

                  "Prairie Wolf Facility" means the financing provided in
         connection with that certain $611,788,868 Joint Venture Sponsor
         Agreement dated as of December 28, 2000 (as amended, supplemented,
         amended and restated or otherwise modified from time to



                                       11



         time, the "SPONSOR AGREEMENT"), among TWC, as Sponsor, and Williams
         Field Services Company, in favor of Prairie Wolf Investors, Arctic Fox
         Assets, L.L.C., Williams Energy (Canada), Inc. and the other
         Indemnified Persons (as defined in the Sponsor Agreement) listed
         therein.

                  "Progeny Facilities" means the financing facilities
         specifically described on Schedule XII attached hereto.

                  "Project Financing Subsidiaries" means any non-material
         Subsidiary of any Borrower whose principal purpose is to incur
         Non-Recourse Debt and/or construct, lease, own or operate the assets
         financed thereby, or to become a direct or indirect partner, member or
         other equity participant or owner in a Business Entity so created, and
         substantially all the assets of which Subsidiary or Business Entity are
         limited to those assets being financed (or to be financed), or the
         operation of which is being financed (or to be financed), in whole or
         in part by Non-Recourse Debt, or to Equity Interests in, or Debt or
         other obligations of, one or more other such Subsidiaries or Business
         Entities, or to Debt or other obligations of any Borrower or its
         Subsidiaries or other Persons. For purposes of this definition, a
         "non-material Subsidiary" shall mean any Consolidated Subsidiary of any
         Borrower that is not the Borrower and which, as of the date of the most
         recent Consolidated balance sheet of the Borrower delivered pursuant to
         Section 4.01(e) or 5.01, has total assets which account for less than
         five percent (5%) of the total Consolidated assets of such Borrower and
         its Consolidated Subsidiaries, as shown on such Consolidated balance
         sheet; provided, that the aggregate assets of the non-material
         Subsidiaries shall not comprise more than ten percent (10%) of the
         total Consolidated assets of such Borrower and its Consolidated
         Subsidiaries, as shown on such Consolidated balance sheet.

                  "Refined Hydrocarbons" means all products refined, separated,
         fractionated, settled, and dehydrated from Hydrocarbons and all
         products derived therefrom, including, without limitation, kerosene,
         liquefied petroleum gas, refined lubricating oils, diesel fuels, drip
         gasoline, natural gasoline, helium, sulfur and all other minerals.

                  "Refineries" means the equity interest in, and assets owned
         by, the Midstream Business of TWC which produces Refined Hydrocarbons
         and is owned collectively by the following subsidiaries: Williams
         Express, Inc., a Delaware corporation, Williams Alaska Pipeline
         Company, LLC, a Delaware limited liability company, Williams Alaska
         Petroleum, Inc., an Alaska corporation, Williams Alaska Air Cargo
         Properties, LLC, an Alaska limited liability company, Williams Lynxs
         Alaska CargoPort, LLC, an Alaska limited liability company, Williams
         Express, Inc., an Alaska corporation, Williams Refining & Marketing,
         LLC, a Delaware limited liability company, Williams Olefins, LLC, a
         Delaware limited liability company, Williams Olefins Feedstock
         Pipelines, LLC, a Delaware limited liability company, Williams Memphis
         Terminal, Inc., a Delaware corporation, Williams Generating Memphis,
         LLC, a Delaware limited liability company.

                  "RMT" means Williams Production RMT Company.

                  "RMT LLC" means Williams Production Holdings LLC.




                                       12



                  "Security Agreement" means a Security Agreement executed by
         the TWC and those certain guarantors party thereto in substantially the
         form of Exhibit F to the L/C Agreement, as amended, supplemented or
         modified from time to time.

                  "Seminole Asset Disposition" means the sale, transfer or other
         distribution of all or substantially all of the Equity Interests in or
         assets of Seminole.

                  "Soda Ash" means Williams Soda Products Company and American
         Soda, L.L.P.

                  "Solvent" and "Solvency" mean, with respect to any Person on a
         particular date, that on such date (a) the fair value of the property
         of such Person is greater than the total amount of liabilities,
         including, without limitation, contingent liabilities, of such Person,
         (b) the present fair salable value of the assets of such Person is not
         less than the amount that will be required to pay the probable
         liability of such Person on its debts as they become absolute and
         matured, (c) such Person does not intend to, and does not believe that
         it will, incur debts or liabilities beyond such person's ability to pay
         such debts and liabilities as they mature and (d) such Person is not
         engaged in business or a transaction, and is not about to engage in
         business or a transaction, for which such Person's property would
         constitute an unreasonably small capital. The amount of contingent
         liabilities at any time shall be computed as the amount that, in the
         light of all the facts and circumstances existing at such time,
         represents the amount that can reasonably be expected to become an
         actual or matured liability.

                  "Synthetic Lease" means any lease (including leases that may
         be terminated by the lessee at any time) of any property (whether real,
         personal or mixed) (i) that is not a capital lease in accordance with
         generally accepted accounting principles and (ii) in respect of which
         the lessee retains or obtains ownership of the property so leased for
         federal income tax purposes, other than any such lease under which such
         Person is the lessor.

                  "TGPL Bond Offering" means that certain $325,000,000, 8.875%
         Senior Notes due 2012 issued on July 3, 2002 by TGPL.

                  "Trading Book" means all mark to market daily and forward
         traded transactions inclusive of structured portfolio transactions
         consisting primarily of tolling and full requirements transactions.

                  "TravelCenters" means Williams TravelCenters, Inc.

                  "TWC Asset Dispositions" has the meaning specified in Section
         1 of the Consent and Fourth Amendment.

                  "TWC Preferred Stock" means the shares of preferred stock of
         TWC which may be perpetual preferred stock or mandatorily convertible
         into shares of common stock of TWC.

                  "TWC Asset Disposition Documents" means all material
         agreements relating to the TWC Asset Dispositions.




                                       13



                  "WCG Unwind Transaction" means a transaction in which (i) the
         TWC's Sale Leaseback transaction with WCG and its Subsidiary, Williams
         Technology Center, LLC ("WTC") involving Williams Technology Center and
         two aircraft dated September 13, 2001 (the "WCG Sale Leaseback"), is
         terminated, (ii) in exchange for such termination, TWC receives a
         promissory note payable by the reorganized WCG, WTC and/or the other
         WCG Subsidiaries, as co-makers in an amount of $100,000,000 or less,
         and (iii) consideration from the Borrower and its Subsidiaries includes
         termination of the existing WCG Sale Leaseback, but does not include
         any cash payment by TWC or any of its Subsidiaries to WCG or WTC.

                  "WPRMT" means Williams Production RMT Company, a Delaware
         company.

                  "WPXE" means WPX Enterprises, Inc., a Delaware corporation.

                  (d) Section 2.04 is hereby amended by adding to the end
         thereof a new subsection (c) to read as follows:

                           "(c) Mandatory. Upon the date of receipt by TWC or
                  any of its Subsidiaries of any Net Cash Proceeds from (1) any
                  asset disposition (other than the MAPL Asset Disposition and
                  the Seminole Asset Disposition), or (2) an issuance of TWC
                  Preferred Stock, TWC shall apply such Net Cash Proceeds as
                  follows:

                                    (i) in the case of any such Net Cash
                           Proceeds arising from any disposition referred to in
                           clause (1) above which consists of the Refinery in
                           Alaska owned by certain Subsidiaries and the assets
                           related thereto, 50% of such Net Cash Proceeds shall
                           be applied on a pro-rata basis to the permanent
                           ratable reduction of the respective Commitments of
                           the Banks to TWC;

                                    (ii) in the case of any such Net Cash
                           Proceeds arising from any asset disposition referred
                           to in clause (1) above and not otherwise applied
                           pursuant to clause (i) above (including any
                           disposition of the Refinery in Memphis, Tennessee
                           owned by certain Subsidiaries and the assets related
                           thereto), 50% of such Net Cash Proceeds shall be
                           applied solely to the permanent ratable (x) reduction
                           of the respective Commitments of the Banks to TWC and
                           the outstanding amounts of the Progeny Facilities
                           (excluding the Prairie Wolf Facility) and (y) cash
                           collateralization of the Legacy L/Cs; and

                                    (iii) in the case of any such Net Cash
                           Proceeds arising from an issuance of TWC Preferred
                           Stock referred to in clause (2) above, 100% of such
                           Net Cash Proceeds shall be applied on a pro-rata
                           basis to the permanent ratable (x) reduction of the
                           respective Commitments of the


                                       14



                           Banks to TWC and the outstanding amounts of the
                           Progeny Facilities (excluding the Prairie Wolf
                           Facility) and (y) cash collateralization of the
                           Legacy L/Cs;

                  provided, however, that notwithstanding the foregoing
         provisions of this clause (c), in no event shall the Commitment of the
         Banks to TWC be reduced, pursuant to this clause (c), to less than
         $400,000,000; provided, further, that (1) upon the mandatory permanent
         reduction of the Commitments of the Banks to TWC to $400,000,000, 50%
         of any Net Cash Proceeds arising from an asset disposition referred to
         in clause (c)(ii) above shall be applied solely to the permanent
         ratable reduction of the outstanding amounts of the Progeny Facilities
         (excluding the Prairie Wolf Facility) and the cash collateralization of
         the Legacy L/Cs and (2) if a reduction of the Commitments pursuant to
         this Section 2.04(c) shall cause the Commitments as so reduced to be
         less than the aggregate outstanding principal amount of the Advances
         (such positive difference between the Commitments and the outstanding
         Advances being referred to herein as the "EXCESS AMOUNT"), TWC shall
         repay an aggregate principal amount equal to no less than such Excess
         Amount, and except as set forth in this proviso, the obligation of TWC
         to apply Net Cash Proceeds to the reduction of the Commitments of the
         Banks shall not require any payments to the Banks.";

                  (e) Section 2.06(a) is hereby amended by inserting the words
         "plus the Applicable Margin" after the words "Base Rate" in the second
         and ninth lines thereof ;

                  (f) Section 3.02 is hereby amended by adding at the end
         thereof a new clause (d) to read as follows:

                           "(d) Evidence that TWC shall have received gross cash
                  proceeds in the aggregate amount of no less than
                  $2,100,000,000; provided that some or all of those proceeds
                  shall have been received from the MAPL Asset Disposition,
                  Seminole Asset Disposition and Barrett Loan.";

                  (g) Section 3.03 is hereby amended by adding at the end
         thereof a new clause (e) to read as follows:

                           "(e) Evidence that TWC shall have received gross cash
                  proceeds in the aggregate amount of no less than
                  $2,100,000,000; provided that some or all of those proceeds
                  shall have been received from the MAPL Asset Disposition,
                  Seminole Asset Disposition and Barrett Loan.";

                  (h) Section 4.01(a) is hereby amended by replacing the words
         "material Subsidiary" in the eighth and thirteenth lines thereof and
         replacing them with "Material Subsidiary";

                  (i) Section 4.01(b) is hereby amended and restated in its
         entirety and replaced with the following:

                           "(b) The execution, delivery and performance by each
                  Borrower of the Credit Documents to which it is a party
                  delivered hereunder and the


                                       15



                  consummation of the transactions contemplated thereby are
                  within such Borrower's corporate or limited liability company
                  powers, have been duly authorized by all necessary corporate
                  or limited liability company action, do not contravene (i) any
                  Borrower's charter, by-laws or formation agreement or (ii) law
                  or any restriction under any material agreement binding on or
                  affecting any Borrower or any Midstream Subsidiary and will
                  not result in or require the creation or imposition of any
                  Lien prohibited by this Agreement.";

                  (j) Section 4.01(c) is hereby amended and restated in its
         entirety and replaced with the following:

                           "(c) No authorization or approval or other action by,
                  and no notice to or filing with, any governmental authority or
                  regulatory body is required for the due execution, delivery
                  and performance by each Borrower or any Midstream Subsidiary
                  of any Credit Document to which any of them is a party, or the
                  consummation of the transactions contemplated thereby.";

                  (k) Section 4.01(e)(i) is hereby amended by deleting the
         following sentence at the end of thereof:

                           "Since March 31, 2000 there has been no material
         adverse change in the condition or operations of TWC or its
         Subsidiaries.";

                  (l) Section 4.01(e)(ii) is hereby amended by deleting the
         following sentence at the end of thereof:

                           "Since March 31, 2000, there has been no material
         adverse change in the condition or operations of NWP or its
         Subsidiaries.";

                  (m) Section 4.01(e)(iv) is hereby amended by deleting the
         following sentence at the end of thereof:

                           "Since March 31, 2000, there has been no material
         adverse change in the condition or operations of TGPL or its
         Subsidiaries.";

                  (n) Section 4.01(e)(v) is hereby amended by deleting the
         following sentence at the end of thereof:

                           "Since March 31, 2000, there has been no material
         adverse change in the condition or operations of TGT or its
         Subsidiaries.";

                  (o) Section 4.01(f) is hereby amended by deleting the words
         "material Subsidiary" commencing in the fourth sentence thereof and
         replacing them with "Material Subsidiary";

                  (p) Section 4.01(j) is hereby amended by deleting the words
         "material Subsidiary" in the third and ninth sentences thereof and
         replacing them with "Material Subsidiary";



                                       16



                  (q) Section 4.01(k) is hereby amended by replacing the words
         "material Subsidiary" in the second sentence thereof with "Material
         Subsidiary";

                  (r) Section 4.01(m) is hereby amended and restated in its
         entirety and replaced with the following:

                           "(m) Except as set forth in the Public Filings or as
                  otherwise disclosed in writing by any Borrower to the Banks
                  and the Agent after the date hereof and approved by the
                  Majority Banks, each Borrower and its respective Material
                  Subsidiaries are in compliance in all material respects with
                  all Environmental Protection Statutes to the extent material
                  to the operations or the Consolidated financial condition of
                  each Borrower and its Consolidated Subsidiaries taken as a
                  whole. Except as set forth in the Public Filings or as
                  otherwise disclosed in writing by any Borrower to the Banks
                  and the Agent after the date hereof and approved by the
                  Majority Banks, the aggregate contingent and non-contingent
                  liabilities of each Borrower and its Consolidated Subsidiaries
                  (other than those reserved for in accordance with generally
                  accepted accounting principles and set forth in the financial
                  statements regarding any such Borrower referred to in Section
                  4.1(e) and delivered to each Bank and excluding liabilities to
                  the extent covered by insurance if the insurer has confirmed
                  that such insurance covers such liabilities or which such
                  Borrower reasonably expects to recover from ratepayers) which
                  are reasonably expected to arise in connection with (i) the
                  requirements of Environmental Protection Statutes or (ii) any
                  obligation or liability to any Person in connection with any
                  Environmental matters (including any release or threatened
                  release (as such terms are defined in the Comprehensive
                  Environmental Response, Compensation and Liability Act of
                  1980) of any Hazardous Waste, Hazardous Substance, other
                  waste, petroleum or petroleum products into the Environment)
                  could not reasonably be expected to have a material adverse
                  effect on the business, assets, conditions or operations of
                  any Borrower and its Subsidiaries, taken as a whole. Each
                  Borrower and its respective Material Subsidiaries holds all
                  Environmental Permits (each of which is in full force and
                  effect) required for any of its current or planned operations
                  or for any property owned, leased, or otherwise operated by
                  it; and is, and within the period of all applicable statutes
                  of limitation has been, in compliance with all of its
                  Environmental Permits."

                  (s) Section 4.01 is hereby amended by adding a new clauses
         (n), (o), (p), (q), (r) and (s) to read as follows:

                           "(n) Other than the Permitted Liens, each Borrower
                  and its Subsidiaries has good, valid and indefeasible title
                  to, or a valid leasehold interest in, its respective property
                  and to all property reflected by its respective balance sheet
                  referenced in clause (e) above as being owned by such
                  Borrower. TWC and each of the Midstream Subsidiaries have
                  sufficient title to all Midstream Assets they collectively own
                  and operate as is necessary for the conduct of the Midstream
                  Business after the date hereof in accordance with the
                  ownership and operation of the Midstream Business in the
                  twelve months prior to the date hereof. There



                                       17



                  exists, or following completion of the post-closing items more
                  fully described in Schedule XIII, there will exist an
                  Acceptable Security Interest in all Collateral other than the
                  Excluded Collateral.

                           (o) The Persons listed on Schedule XIV are all of the
                  Midstream Subsidiaries and own, lease or hold all Midstream
                  Assets necessary and/or appropriate for the operation and
                  carrying on of the Midstream Business associated with the
                  Midstream Assets as conducted during the 12 months preceding
                  the date hereof.

                           (p) Neither TWC nor any Midstream Subsidiary is in
                  default under or with respect to any of its Contractual
                  Obligations in any respect which could reasonably be expected
                  to have a material adverse effect the Midstream Business of
                  TWC or any Midstream Subsidiary. No Default or Event of
                  Default has occurred and is continuing.

                           (q) Except as would not have a material adverse
                  effect on the conduct of the Midstream Business conducted by
                  the Midstream Subsidiaries, the various gathering systems
                  which comprise part of the Midstream Assets are covered by
                  recorded fee deeds, right of ways, easements, leases,
                  servitudes, permits, licenses, or other instruments in favor
                  of the Midstream Subsidiaries (or their predecessors in title)
                  and their successors and assigns, which instruments establish
                  a contiguous right of way for the respective gathering systems
                  and grant the right to construct, operate, and maintain the
                  respective gathering system in, over, under, and across the
                  land covered thereby; provided, that certain licenses and
                  permits from railroads, utilities, meter sites, and from the
                  various state and local Governmental Authorities and rights
                  granted by Hydrocarbon producers on their respective
                  properties may not be recorded. The pipelines comprising the
                  various gathering systems which are part of the Midstream
                  Assets of the Midstream Subsidiaries are located within the
                  confines of contiguous rights of way and do not encroach upon
                  any adjoining property in any material respects. The rights of
                  ingress and egress held by the Midstream Subsidiaries with
                  respect to such gathering systems allow the applicable
                  Midstream Subsidiaries to inspect, operate, repair, and
                  maintain such gathering systems in a normal manner consistent
                  with past practices.

                           (r) After giving effect to the Consent and Fourth
                  Amendment and the concurrent amendments to various financing
                  arrangements and agreements of each Borrower and its
                  Subsidiaries, each Borrower, individually and together with
                  its Subsidiaries, is Solvent.";

                           (s) No Borrower nor any Midstream Subsidiary is in
                  default under or with respect to any of its margin
                  requirements and capital assurance requirements in any respect
                  which could reasonably be expected to have a material adverse
                  effect on the Midstream Business of TWC, or any Midstream
                  Subsidiary. No Default or Event of Default has occurred and is
                  continuing.";



                                       18



                  (t) Section 5.01(b)(ii) is hereby amended and restated in its
         entirety and replaced with the following:

                           "(ii) as soon as available and in any event not later
                  than 60 days after the end of each of the first three Fiscal
                  Quarters of each Fiscal Year of such Borrower, (1) the
                  Consolidated balance sheet of such Borrower and its
                  Consolidated Subsidiaries as of the end of such Fiscal
                  Quarters and the Consolidated statements of income and cash
                  flows of such Borrower and its Consolidated Subsidiaries for
                  the period commencing at the end of the previous year and
                  ending with the end of such quarter, all in reasonable detail
                  and duly certified (subject to year-end audit adjustments and
                  the lack of footnotes) by an authorized financial officer of
                  such Borrower as having been prepared in accordance with
                  generally accepted accounting principles; provided that, if
                  any financial statement referred to in this clause (ii) of
                  Section 5.01(b) is readily available on-line through EDGAR as
                  of the date on which such financial statement is required to
                  be delivered hereunder, such Borrower shall not be obligated
                  to furnish copies of such financial statement; and (2) a
                  certificate of an authorized financial officer of such
                  Borrower (a) stating that he has no knowledge that a Default
                  or Event of Default has occurred and is continuing or, if a
                  Default or Event of Default has occurred and is continuing, a
                  statement as to the nature thereof and the action, if any,
                  which such Borrower proposes to take with respect thereto, and
                  (b) showing in detail the calculation supporting such
                  statement in respect of Sections 5.02(b) and 5.02(m);";

                  (u) Section 5.01(b)(iii) is hereby amended and restated in its
         entirety and replaced with the following:

                           "(iii) as soon as available and in any event not
                  later than 105 days after the end of each Fiscal Year of such
                  Borrower, (1) a copy of the annual audited report for such
                  year for such Borrower and its Consolidated Subsidiaries,
                  including therein Consolidated balance sheet of such Borrower
                  and its Consolidated Subsidiaries as of the end of such Fiscal
                  Year and Consolidated statements of income and cash flows of
                  such Borrower and its Consolidated Subsidiaries for such
                  Fiscal Year, in each case prepared in accordance with
                  generally accepted accounting principles and reported on by
                  Ernst & Young, LLP or such other independent certified public
                  accountants of recognized standing acceptable to the Majority
                  Banks; provided that if any financial statement referred to in
                  this clause (iii) of Section 5.01(b) is readily available
                  on-line through EDGAR as of the date on which such financial
                  statement is required to be delivered hereunder, such Borrower
                  shall not be obligated to furnish copies of such financial
                  statement; and (2) a letter of such accounting firm to the
                  Banks (a) stating that, in the course of the regular audit of
                  the business of such Borrower and its Consolidated
                  Subsidiaries, which audit was conducted by such accounting
                  firm in accordance with generally accepted auditing standards,
                  such accounting firm has obtained no knowledge that a Default
                  or Event of Default has occurred and is continuing, or if, in
                  the opinion of such accounting firm, a Default or Event of
                  Default has occurred and is continuing, a statement as to the
                  nature thereof, and




                                       19



                  (b) showing in detail the calculations supporting such
                  statement in respect of Sections 5.02(b) and 5.20(m), (which
                  letter may nevertheless be limited in form, scope and
                  substance to the extent required by applicable accounting
                  rules or guidelines in effect from time to time);";

                  (v) Section 5.01(b)(iv) is hereby amended by deleting the
         words "material Subsidiaries" in the third line thereof and replacing
         them with "Material Subsidiaries";

                  (w) Section 5.01(b)(v) is hereby amended by deleting the words
         "material Subsidiary" in the fourth and eighth lines thereof and
         replacing them with "Material Subsidiaries";

                  (x) Section 5.01(b)(vi) is hereby amended and restated in its
         entirety and replaced with the following:

                           "(vi) as soon as possible and in any event within 30
                  Business Days after such Borrower or any ERISA Affiliate of
                  such Borrower knows or has reason to know (A) that any
                  Termination Event described in clause (i) of the definition of
                  Termination Event with respect to any Plan has occurred that
                  could have a material adverse effect on such Borrower or any
                  Material Subsidiary of such Borrower or any ERISA Affiliate of
                  such Borrower or (B) that any other Termination Event with
                  respect to any Plan has occurred or is reasonably expected to
                  occur that could have a material adverse effect on such
                  Borrower or any Material Subsidiary of such Borrower or any
                  ERISA Affiliate of such Borrower, a statement of the chief
                  financial officer or chief accounting officer of such Borrower
                  describing such Termination Event and the action, if any,
                  which such Borrower or such Subsidiary or such ERISA Affiliate
                  proposes to take with respect thereto;";

                  (y) Section 5.01(b) is hereby amended by adding at the end
         thereof a new clause (xii) to read as follows:

                           "(xii) promptly after any officer of such Borrower
                  obtains knowledge thereof, notice of (1) any material
                  violation of, noncompliance with, or remedial obligations
                  under, any Environmental Protection Statute, and (2) any
                  material release or threatened material release of Hazardous
                  Substance or Hazardous Waste affecting any property owned,
                  leased or operated by such Borrower or any Subsidiary of such
                  Borrower that such Borrower or such Subsidiary is compelled by
                  the requirements of any Environmental Protection Statute to
                  report to any governmental agency, department, board or other
                  instrumentality,";

                  (z) Section 5.01(c) is hereby amended by deleting the words
         "material Subsidiary" commencing in the first line thereof and
         replacing them with "Material Subsidiary";

                  (aa) Section 5.01 is hereby amended by adding at the end
         thereof new clauses (e), (f), (g), (h), (i), (j), (k), (l) and (m) to
         read as follows:





                                       20



                           "(e) Acceptable Security Interest. Cause an
                  Acceptable Security Interest to exist at all times in all
                  Collateral, except as to the Excluded Collateral and as
                  otherwise contemplated by Section 5.01(g).

                           (f) Further Assurances. At any time and from time to
                  time, such Borrower shall, at its expense, promptly execute
                  and deliver to the Collateral Trustee and/or the Collateral
                  Agent such further instruments and documents, and take such
                  further action (including, without limitation, with respect to
                  the granting of a valid first priority Lien, subject to
                  Permitted Liens, on any personal or real property of TWC, any
                  MidStream Subsidiary or Williams Mobile Bay Producer Services,
                  L.L.C. which, on the date of this Agreement, is subject to any
                  contractual restriction prohibiting the granting of such a
                  Lien on such property, which contractual restriction shall
                  terminate prior to the Termination Date), as the Majority
                  Banks may from time to time reasonably request, in order to
                  further carry out the intent and purpose of the Credit
                  Documents and to establish and protect the rights, interests
                  and remedies created, or intended to be created, in favor of
                  the Collateral Trustee, Collateral Agent or any of the Banks,
                  including the execution, delivery, recordation and filing of
                  security agreements, financing statements and continuation
                  statements under the law of any applicable jurisdiction and
                  mortgages and deeds of trust necessary to grant a valid first
                  Lien on all Collateral of such Borrower and its Subsidiaries
                  whether such Collateral is now owned, leased, possessed by
                  license or any other means of acquiring a possessory interest
                  or hereafter acquired or possessed (each such mortgage or deed
                  of trust being an "Additional Mortgage"); provided, however,
                  that (i) Williams GP LLC shall not be required to grant a Lien
                  on any Equity Interests held by it in Williams Energy Partners
                  L.P. and (ii) Williams Energy Partners L.P. shall not be
                  required to grant a Lien on any of its personal or real
                  property.

                           (g) Post-Closing Requirements. On or before the dates
                  more fully set forth in Schedule XIII hereto, the Borrowers
                  shall satisfy, or shall cause satisfaction, of the items more
                  fully set forth in such Schedule XIII.

                           (h) Subsidiaries. Give the Agent thirty days prior
                  written notice of the creation or acquisition of any
                  Subsidiary (other than a Project Financing Subsidiary or any
                  Subsidiary of Williams Energy Partners L.P.) and concurrently
                  with the creation or acquisition of any such Subsidiary, cause
                  such Subsidiary (other than a Project Financing Subsidiary or
                  any Subsidiary of Williams Energy Partners L.P.) to provide to
                  the Collateral Agent a Security Agreement granting an
                  Acceptable Security Interest for the benefit of the Collateral
                  Trustee, appropriate legal opinions and, if such Subsidiary
                  owns any real property, a Mortgage covering such real
                  property, all of which shall be in the form and substance
                  satisfactory to the Collateral Agent.

                           (i) Bond Offerings. On or before August 1, 2002,
                  cause the net proceeds from the TGPL Bond Offering to be
                  maintained in a separate, segregated account in the name of
                  TGPL to be used solely for the purpose of paying the
                  bondholders as such bonds mature to be used solely as set
                  forth in the offering documents for the TGPL Bond Offering.

                           (j) Midstream Subsidiaries. Cause the representation
                  set forth in Section 4.01(p) to be true at all times.

                           (k) Cash Deposits. Maintain all or substantially all
                  of its cash deposits with one or more of the Banks party to
                  this Agreement, other than any cash deposit held in local
                  operational account or any international accounts.


                                       21



                           (l) Barrett Liquidity Reserve. Cause RMT to at all
                  times maintain the Borrower Liquidity Reserve (as defined in
                  the Barrett Loan Agreement).

                           (m) Williams GP LLC. (i)Upon any sale or other
                  disposition (other than a redemption) of any Equity Interests
                  of Williams Energy Partners L.P. owned, directly or
                  indirectly, by Williams GP LLC, TWC shall furnish, or cause
                  Williams GP LLC to furnish, to the Agent a fairness opinion
                  with respect to such disposition prepared by a nationally
                  recognized investment banking firm; (ii) TWC shall cause
                  proceeds resulting from any redemption or disposition
                  described in clause (i) which have been distributed by
                  Williams GP LLC to, or otherwise received by, a Subsidiary
                  (except Williams Energy Partners L.P. or a Subsidiary thereof)
                  to be promptly delivered by such Subsidiary to the Collateral
                  Trustee pursuant to the Collateral Trust Agreement, to be held
                  by the Collateral Trustee as Collateral thereunder; and (iii)
                  upon a purchase of any property by Williams GP LLC using
                  proceeds from any redemption or disposition referred to in
                  clause (i), TWC shall furnish, or cause Williams GP LLC to
                  furnish, to the Agent a fairness opinion with respect to such
                  purchase prepared by a nationally recognized investment
                  banking firm.";

                  (bb) Section 5.02(a) is hereby amended in its entirety and
         replaced with the following:

                           "(a) Liens, Etc. Create, assume, incur or suffer to
                  exist, or permit any of its Subsidiaries to create, assume,
                  incur or suffer to exist, any Lien on or in respect of any of
                  its property, whether now owned or hereafter acquired, or
                  assign or otherwise convey, or permit any such Subsidiary to
                  assign or otherwise convey, any right to receive income, in
                  each case to secure or provide for the payment of any Debt,
                  trade payable or other obligation or liability or any Person
                  (other than obligations or liabilities that are (i) neither
                  Debt nor trade payables, (ii) incurred, and are owed to
                  trading counterparties, in the ordinary course of the trading
                  business of the Borrowers or any of their Subsidiaries, and
                  (iii) secured only by cash, short-term investments or a Letter
                  of Credit); provided however, that, notwithstanding the
                  foregoing, (1) the Borrowers or any of their Subsidiaries may
                  create, incur, assume or suffer to exist Permitted Liens and
                  (2) RMT and RMT LLC may create, incur, assume or suffer to
                  exist any Lien created pursuant to the Barrett Loan Agreement
                  or documents related thereto.";

                  (cc) Section 5.02(b)(i) is hereby amended in its entirety and
         replaced with the following:

                           "In the case of TWC, permit the ratio of (A) the
                  aggregate amount of Consolidated Debt of TWC and its
                  Consolidated Subsidiaries to (B) the sum of the Consolidated
                  Net Worth of TWC plus the aggregate amount of Consolidated
                  Debt of TWC and its Consolidated Subsidiaries to exceed at any
                  time (x) on or before December 30, 2002, 0.70 to 1.00, (y)
                  after December 30, 2002 and on or before March 30, 2003, 0.68
                  to 1.00 and (z) after March 30, 2003, 0.65 to 1.00.";




                                       22



                  (dd) Section 5.02(b)(ii) is hereby amended in its entirety and
         replaced with the following:

                           "In the case of any Borrower (other than TWC), permit
                  the ratio of (A) the aggregate amount of Consolidated Debt of
                  such Borrower and its Subsidiaries on a Consolidated basis, to
                  (B) the sum of the Consolidated Net Worth of such Borrower
                  plus the aggregate amount of Consolidated Debt of such
                  Borrower and its Subsidiaries on a Consolidated basis to
                  exceed at any time 0.55 to 1.00.";

                  (ee) Section 5.02(c) is hereby amended and restated in its
         entirety and replaced with the following:

                           "(c) Merger and Sale of Assets. Merge or consolidate
                  with or into any other Person, or sell, lease or otherwise
                  transfer a material part of its assets, or permit any of its
                  Major Subsidiaries to merge or consolidate with or into any
                  other Person, or sell, lease or otherwise transfer a material
                  part of such Major Subsidiary's assets, except that this
                  Section 5.02(c) shall not prohibit any sale or transfer
                  permitted by Section 5.02 (l) or any TWC Asset Disposition.";

                  (ff) Section 5.02(d) is hereby amended and restated in its
         entirety and replaced with the following:

                           "(d) Agreements to Restrict Certain Transfers. Enter
                  into or suffer to exist, or permit any of its Subsidiaries to
                  enter into or suffer to exist, any consensual encumbrance or
                  restriction on its ability or the ability of any of its
                  Subsidiaries (i) to pay, directly or indirectly, dividends or
                  make any other distributions in respect of its capital stock
                  or pay any Debt or other obligation owed to a Borrower or to
                  any of its Subsidiaries; or (ii) to make loans or advances to
                  a Borrower or any Subsidiary thereof, except (1) encumbrances
                  and restrictions on any Subsidiary that is not a Material
                  Subsidiary, (2) those encumbrances and restrictions existing
                  on July 31, 2002, (3) other customary encumbrances and
                  restrictions now or hereafter existing of a Borrower or any
                  Subsidiary thereof entered into in the ordinary course of
                  business that are not more restrictive in any material respect
                  than the encumbrances and restrictions with respect to a
                  Borrower or its Subsidiaries existing on the date hereof, (4)
                  encumbrances or restrictions on any Subsidiary that is
                  obligated to pay Non-Recourse Debt arising in connection with
                  such Non-Recourse Debt, (5) encumbrances and restrictions on
                  Williams Energy Partners L.P. and (6) encumbrances and
                  restrictions on any Subsidiary pursuant to the Barrett Loan
                  Agreement.";

                  (gg) Section 5.02(e) is hereby amended and restated in its
         entirety and replaced with the following:

                           "(e) Loans and Advances; Investments. Make or permit
                  to remain outstanding, or allow any of its Subsidiaries to
                  make or permit to remain outstanding, any loan or advance to,
                  or own, purchase or acquire any obligations or debt or Equity
                  Interests of, any WCG Subsidiary, except that a Borrower and





                                       23



                  its Subsidiaries may (i) permit to remain outstanding, and to
                  replace or refinance, loans and advances and other financing
                  arrangements to, or Equity Interest in, a WCG Subsidiary
                  existing or owned (in the case of such Equity Interests) as of
                  the date hereof and listed on Exhibit E hereof, but no such
                  replacement or refinancing shall exceed the amount of such
                  loans, advances or other amounts outstanding immediately prior
                  to such replacement or refinancing, (ii) pursuant to the WCG
                  Unwind Transaction, acquire and own the promissory note
                  referred to in clause (b) of the definition herein of WCG
                  Unwind Transaction, and (iii) receive any distribution from
                  WCG or any Subsidiary thereof in connection with the
                  bankruptcy proceedings of WCG or any Subsidiary thereof.
                  Except for those investments permitted in subsections (i),
                  (ii) and (iii) above, no Borrower shall, and no Borrower shall
                  permit any of its Subsidiaries to, acquire or otherwise invest
                  in Equity Interests in, or make any loan or advance to, a WCG
                  Subsidiary.";

                  (hh) Section 5.02(f) is hereby and restated in its entirety
         and replaced with the following:

                           "(f) Maintenance of Ownership of Certain
                  Subsidiaries. Except with respect to Williams Energy Partners
                  L.P., WPC, the Refineries, MAPL, Seminole and their respective
                  Subsidiaries, sell, issue or otherwise dispose of, or create,
                  assume, incur or suffer to exist any Lien on or in respect of,
                  or permit any of its Subsidiaries to sell, issue or otherwise
                  dispose of or create, assume, incur or suffer to exist any
                  Lien on or in respect of, any Equity Interests or any direct
                  or indirect interest in any Equity Interests in any Borrower
                  or any of its Material Subsidiaries; provided, however, that
                  this Section 5.02(f) shall not prohibit (i) Permitted Liens,
                  (ii) the sale or other disposition of the Equity Interests in
                  any Subsidiary of a Borrower to the Borrower or any
                  Wholly-Owned Subsidiary of a Borrower if, but only if, (x)
                  there shall not exist or result a Default or Event of Default
                  and (y) in the case of each sale or other disposition referred
                  to in this proviso involving such Borrower or any of its
                  Subsidiaries, such sale or other disposition could not
                  reasonably be expected to impair materially the ability of
                  such Borrower to perform its obligations hereunder and under
                  any other Credit Document and such Borrower shall continue to
                  exist, (iii) any Subsidiary from selling or otherwise
                  disposing of any direct or indirect Equity Interests in any
                  Subsidiary (other than TPGL, TGT, or NWP) of a Borrower, (iv)
                  any TWC Asset Disposition, or (v) the sale or other
                  disposition of the Equity Interests in any Subsidiary of any
                  Borrower pursuant to, and in accordance with, the Barrett Loan
                  Agreement; provided that, after giving effect to any such sale
                  or other disposition of any Equity Interests owned directly or
                  indirectly by a Major Subsidiary, such Subsidiary continues to
                  be a Major Subsidiary. Nothing herein shall be construed to
                  permit the Borrower or any of its Subsidiaries to purchase
                  shares, any interest in shares or any ownership interest in a
                  WCG Subsidiary except as permitted by Section 5.02(d).";



                                       24



                  (ii) Section 5.02(g) is hereby amended by deleting the words
         "material Subsidiary" in the third and sixth lines thereof and
         replacing them with "Material Subsidiary";

                  (jj) Section 5.02(h) is hereby amended by deleting the words
         "material Subsidiary" in the third line thereof and replacing them with
         "Material Subsidiary";

                  (kk) Section 5.02(i) is hereby amended and restated in its
         entirety and replaced with the following:

                           "(i) Guarantees. After the date of the Consent and
                  Fourth Amendment, enter into any agreement to guarantee or
                  otherwise become contingently liable for, or permit any of its
                  Subsidiaries to guarantee or otherwise become contingently
                  liable for, Debt or any other obligation of any WCG Subsidiary
                  or to otherwise assure a WCG Subsidiary, or any creditor of a
                  WCG Subsidiary, against loss, except for any guarantees
                  permitted by the L/C Agreement and the Holdings Guaranty.";

                  (ll) Section 5.02(j) is hereby amended and restated in its
         entirety and replaced with the following:

                           "(j) Sale and Lease-Back Transactions. Enter into, or
                  permit any of its Subsidiaries to enter into, any Sale and
                  Lease-Back Transaction, if after giving effect thereto such
                  Borrower would not be permitted to incur at least $1.00 of
                  additional Debt secured by a Lien permitted by paragraph (y)
                  of Schedule VI.";

                  (mm) Section 5.02(k) is hereby amended by adding to the end
         thereof the following:

                           "Notwithstanding anything to the contrary contained
                  herein, if any, (i) with respect to EMT, proceeds of any
                  Advance shall only be used, directly or indirectly, as
                  necessary for the orderly disposition of the Trading Book and
                  (ii) no proceeds of any Advance shall be used to pay any
                  principal amounts outstanding, interest, fees or other costs
                  with respect to the Barrett Loan, it being understood that
                  proceeds of any Advance may be used to support margin
                  requirements with regard to Hedging Agreements on oil and
                  gas.";

                  (nn) Section 5.02 is hereby amended by adding at the end
         thereof new clauses (l), (m), (n), (o), and (p) to read as follows:

                           "(l) Asset Disposition. Sell, lease, transfer or
                  otherwise dispose of, or permit any of their Material
                  Subsidiaries to sell, lease, transfer or otherwise dispose of,
                  any property of the Borrowers or any Material Subsidiary of
                  the Borrowers, except (i) sales of inventory in the ordinary
                  course of business and on reasonable terms, (ii) sales of worn
                  out or obsolete equipment in the ordinary course of business,
                  if no Event of Default exists at the time of such sale, (iii)
                  replacement of equipment in the ordinary course of business
                  with other equipment at least as useful and beneficial to TWC
                  or its Material Subsidiaries and their




                                       25



                  respective businesses as the equipment replaced if no Event of
                  Default exists at the time of such replacement and an
                  Acceptable Security Interest exists in such other equipment at
                  the time of such replacement, (iv) sales of other immaterial
                  Property (other than Equity Interests, Debt or other
                  obligations of any Subsidiary) in the ordinary course of
                  business and on reasonable terms, if no Event of Default
                  exists at the time of such sale; provided that Property may
                  not be sold pursuant to this clause (iv) if the aggregate fair
                  market value of all Property sold pursuant to this clause (iv)
                  exceeds $250,000 in any year, (v) sales of assets which are
                  not Collateral for cash in arm's length transactions, (vi)
                  sales or other dispositions of WPC or the Refineries, (vii)
                  sales of MAPL and Seminole and (viii) sales or other
                  dispositions of assets of Williams GP LLC or Williams Energy
                  Partners L.P.; provided that (A) the proceeds from any
                  disposition permitted pursuant to clauses (i) through (vi),
                  shall be applied in accordance with the terms and conditions
                  of this Agreement and (B) assets disposed of pursuant to
                  clauses (i) through (v) shall not constitute a material part
                  of the assets of TGPL, TGT or NWP. Upon receipt of a written
                  request therefor from the applicable Borrower relating to
                  dispositions permitted pursuant to this Section 5.02(l), (x)
                  the Collateral Agent will execute and deliver all documents as
                  may reasonably be requested to effect a release of the Liens
                  on any such Collateral held by the Collateral Trustee pursuant
                  the Collateral Trust Agreement and other L/C Collateral
                  Documents and (y) each Bank shall be deemed to have
                  affirmatively approved the release of such Collateral.
                  Notwithstanding anything in this Section 5.02(l) to the
                  contrary, and for greater certainty, nothing in this Agreement
                  shall prohibit (1) the transfer of Equity Interests of RMT
                  from TWC to RMT LLC or (2) TWC or any of its Subsidiaries
                  (including RMT LLC, RMT and their respective Subsidiaries)
                  from selling, leasing, transferring or otherwise disposing of
                  any property of the Borrowers or any Subsidiaries of the
                  Borrowers in accordance with the provisions of the Barrett
                  Loan Agreement.

                           (m) Cash Flow to Interest Expense Ratio. Permit, for
                  any period of four consecutive quarters, the ratio of (A) the
                  sum of Cash Flow of any Borrower plus Interest Expense of such
                  Borrower to (B) Interest Expense of such Borrower to be less
                  than 1.5 to 1.0.

                           (n) Restricted Payments. Declare or pay any
                  dividends, purchase, redeem, retire, defease or otherwise
                  acquire for value any of its Equity Interests now or hereafter
                  outstanding, return any capital to its stockholders, partners
                  or members (or the equivalent Persons thereof) as such, make
                  any distribution of assets, Equity Interests, obligations or
                  securities to its stockholders, partners or members (or the
                  equivalent Person thereof) as such or issue or sell any Equity
                  Interests or accept any capital contributions, or permit any
                  of its Subsidiaries to do any of the foregoing, or permit any
                  of its Subsidiaries to purchase, redeem, retire, defease or
                  otherwise acquire for value any Equity Interests in a Borrower
                  or to issue or sell any Equity Interests therein, make any
                  prepayment with respect to any Debt (other than the Progeny
                  Facilities or Debt of Williams Energy Partners L.P. and its
                  Subsidiaries) or repurchase any Debt securities except as
                  required by the terms thereof in effect on the date hereof,
                  except that, so long as no Default




                                       26



                  shall have occurred and be continuing at the time of any
                  action described in clauses (i) through (iv) below or would
                  result therefrom:

                                    (i) TWC may (A) declare and pay cash
                           dividends and distributions on its (1) 9 7/8ths%
                           Cumulative Convertible Preferred Stock, (2) December
                           2000 Cumulative Convertible Preferred Stock and (3)
                           March 2001 Mandatorily Convertible Single Reset
                           Preferred Stock, (B) declare and pay cash dividends
                           and distributions on TWC Preferred Stock issued on or
                           after July 30, 2002 in form and substance
                           satisfactory to the Agent and (C) in any Fiscal
                           Quarter, declare and pay cash dividends to its
                           stockholders and purchase, redeem, retire or
                           otherwise acquire shares of its own outstanding
                           capital stock for cash if after giving effect thereto
                           the aggregate amount of such dividends, purchases,
                           redemptions, retirements and acquisitions paid or
                           made in any such Fiscal Quarter would be no greater
                           than the sum of $6,250,000;

                                    (ii) any Subsidiaries of TWC may (A) declare
                           and pay cash dividends to TWC and (B) declare and pay
                           cash dividends to any other Guarantor under the L/C
                           Agreement of which it is a Subsidiary;

                                    (iii) Williams Energy Partners L.P. may
                           declare and pay cash distributions to its
                           unitholders; provided that any such cash distribution
                           shall comply with the partnership agreement governing
                           Williams Energy Partners L.P.; and

                                    (iv) Apco Argentina, Inc. may declare and
                           pay dividends in accordance with applicable laws and
                           its governing documents.".

                           (o) Investment in Other Persons. Make or hold, or
                  permit any of its Subsidiaries to make or hold, any Investment
                  in any Person, except (i) equity Investments by a Borrower and
                  its Subsidiaries in their Subsidiaries outstanding on the date
                  hereof and additional investments in Subsidiaries engaged in
                  businesses reasonably related to the businesses carried on by
                  such Borrower and its Subsidiaries on the date hereof; (ii)
                  loans and advances to employees in the ordinary course of the
                  business of a Borrower and its Subsidiaries as presently
                  conducted; (iii) Investments of a Borrower and its
                  Subsidiaries in Cash Equivalents; (iv) Investments existing on
                  the date hereof; (v) Investments by a Borrower in Hedge
                  Agreements entered into in the ordinary course of business and
                  not for speculative purposes; (vi) Investments consisting of
                  intercompany debt; and (vii) other Investments in an aggregate
                  amount invested not to exceed $50,000,000 annually; provided
                  that with respect to Investments made under this clause (vii);
                  (1) any newly acquired or organized Subsidiary of a Borrower
                  or any of its Subsidiaries shall be a wholly owned Subsidiary
                  thereof; (2) immediately before and after giving effect
                  thereto, no Default shall have occurred and be continuing or
                  would result therefrom; and (3) any company or business
                  acquired




                                       27



                  or invested in pursuant to this clause (vii) shall be in the
                  same line of business as the business of a Borrower or any of
                  its Subsidiaries.

                           (p) Subsidiary Debt. Permit any of its Subsidiaries
                  to create, incur, assume or suffer to exist Debt, other than
                  (i) Debt incurred, assumed or suffered to exist by TGPL, TGT,
                  NWP, or Williams Energy Partners L.P. or its Subsidiaries,
                  (ii) Debt incurred, assumed or suffered to exist by
                  Subsidiaries (other than those referred to in clause (i) and
                  the Subsidiaries the stock of which is pledged under the
                  Pledge Agreement (as defined in the L/C Agreement)) in an
                  aggregate amount equal to $50,000,000, (iii) Debt in existence
                  on the date hereof, (iv) Debt under the Guaranties, (v) Debt
                  of the Project Financing Subsidiaries; (vi) Debt under the
                  Barrett Loan Agreement and (vii) Debt consisting of
                  intercompany debt so long as obligations of the debtors
                  thereunder are subordinated to their obligations under the
                  Credit Documents and are incurred in the ordinary of the cash
                  management systems of the Borrowers and their Subsidiaries.";

                  (oo) Section 8.01 of the Credit Agreement is hereby amended by
         deleting the word "or" in the fifteenth line thereof and adding a new
         (h) at the end thereto to read as follows:

                           "or (h) release any of the Collateral (except as
                  contemplated by Section 5.02(l))";

                  (pp) Schedule VI is hereby amended in its entirety and
         replaced with Annex A attached hereto;

                  (qq) Schedule XI is hereby amended in its entirety and
         replaced with Annex B attached hereto;

                  (rr) Schedules III, IV and V are hereby deleted in their
         entirety and replaced with the following:

                           "[Intentionally Omitted]";

                  (ss) The Credit Agreement is hereby amended by adding a new
         Schedule XII attached hereto as Annex C;

                  (tt) The Credit Agreement is hereby amended by adding a new
         Schedule XIII attached hereto as Annex D; and

                  (uu) The Credit Agreement is hereby amended by adding a new
         Schedule XIV attached hereto as Annex E.

                  SECTION 3. Successor Agent. Pursuant to Section 7.06 of the
Credit Agreement, Citibank hereby resigns as Agent and, with the consent and
approval of the Majority Banks and TWC, hereby appoints, in accordance with the
terms of such Section 7.06, Citicorp USA, Inc. ("Citicorp") as successor Agent
under the Credit Agreement. By its signature hereto, Citicorp hereby
acknowledges its acceptance of such appointment as Agent and to the terms and
conditions of such appointment as set forth in Section 7.06 of the Credit
Agreement.


                                       28



                  For purposes of Section 8.02 of the Credit Agreement, all
notices and other communications to Citicorp, as Agent, shall be delivered to
its address at 399 Park Avenue, New York, New York 10043, (telecopier number:
(302) 894-6120), Attention: Williams Account Officer, with a copy to Citicorp
North America, Inc., 1200 Smith Street, Suite 2000, Houston, Texas 77002
(telecopier number: (713) 654-2849), Attention: The Williams Companies, Inc.
Account Officer, or at such other address as shall be designated by Citicorp in
a written notice to the other parties.

                  SECTION 4. Conditions of Effectiveness. This Agreement shall
become effective as of the date first above written when, and only when, on or
before July 31, 2002, the Agent shall have received counterparts of this
Agreement executed by the Borrowers and the Majority Banks or, as to any of the
Banks, advice satisfactory to the Agent that such Bank has executed this
Agreement. This Agreement is subject to the provisions of Section 8.01 of the
Credit Agreement. Sections 1 through 3 hereof shall become effective when, and
only when, on or before July 31, 2002, the Agent shall have additionally
received all of the following documents, each such document (unless otherwise
specified) dated the date of receipt thereof by the Agent (unless otherwise
specified) and in sufficient copies for each Bank, in form and substance
satisfactory to the Agent and the Majority Banks (unless otherwise specified)
and in sufficient copies for each Bank:

                  (a) Certified copies of (i) the resolutions of the Board of
         Directors, or the Executive Committee thereof, of each of the Borrowers
         approving this Agreement and the matters contemplated hereby and (ii)
         all documents evidencing other necessary corporate action and
         governmental approvals, if any, with respect to this Agreement and the
         matters contemplated hereby.

                  (b) A certificate of the Secretary or an Assistant Secretary
         of each Borrower certifying (i) the names and true signatures of the
         officers of such Borrower authorized to sign this Agreement and the
         other documents to be delivered hereunder and thereunder and, (ii) that
         attached thereto is a complete and correct copy of the Certificate of
         Incorporation and Bylaws of such Borrower together with any amendments
         thereto.

                  (c) Favorable opinions of William G. von Glahn, General
         Counsel of TWC, and Skadden, Arps, Slate, Meagher & Flom LLP, counsel
         for the Borrowers, substantially in the Form of Exhibit A hereto and as
         to such other matters as the Agent may reasonably require.

                  (d) A certificate signed by a duly authorized officer of each
         Borrower stating that:

                           (i) the representations and warranties contained in
                  Section 5 are correct on and as of the date of such
                  certificate as though made on and as of such date other than
                  any such representations or warranties that, by their terms,
                  refer to a date other than the date of such certificate; and



                                       29



                           (ii) after giving effect to the Consent and Fourth
                  Amendment and the transactions contemplated therein, no event
                  has occurred and is continuing that constitutes a Default.

                  (e) A duly executed and fully effective L/C Agreement and an
         amendment to each of the Progeny Facility documents, other than those
         automatically amended by virtue of this Agreement, each dated the date
         of this Agreement.

                  (f) The L/C Collateral Documents (other than the Mortgages and
         Additional Mortgages; each as defined in the L/C Agreement) and all
         documents required for perfection of the Liens granted pursuant to such
         L/C Collateral Documents.

                  SECTION 5. Representations and Warranties of the Borrowers
Each of the Borrowers represents and warrants as follows:

                  (a) Each Borrower is a corporation duly organized, validly
         existing and in good standing under the laws of the jurisdiction
         indicated in the recital of parties to this Agreement.

                  (b) The execution, delivery and performance by the Borrowers
         of this Agreement, and the consummation of the transactions
         contemplated hereby, are within the Borrower's corporate powers, have
         been duly authorized by all necessary corporate action and do not (i)
         contravene the Borrowers' charters or by-laws, (ii) violate any law
         (including, without limitation, the Securities Exchange Act of 1934, as
         amended, and the Racketeer Influenced and Corrupt Organizations Chapter
         of the Organized Crime Control Act of 1970), rule or regulation
         (including, without limitation, Regulation X of the Board of Governors
         of the Federal Reserve System), or any order, writ, judgment,
         injunction, decree, determination or award, binding on or affecting the
         Borrowers or any of their Subsidiaries or any of their properties,
         (iii) conflict with or result in the breach of, or constitute a default
         under, any contract, loan agreement, indenture, mortgage, deed of
         trust, lease or other instrument binding on or affecting the Borrowers,
         any of their Subsidiaries or any of their properties or (iv) except for
         the Liens created under the L/C Collateral Documents and the TWC Asset
         Disposition Documents, as amended hereby, result in or require the
         creation or imposition of any Lien upon or with respect to any of the
         properties of the Borrowers or any of their Subsidiaries.

                  (c) No authorization or approval or other action by, and no
         notice to or filing with, any governmental authority or regulatory body
         or any other third party is required for the due execution, delivery or
         performance by the Borrowers of this Agreement or L/C Collateral
         Documents to which it is or is to be a party.

                  (d) This Agreement has been duly executed and delivered by
         each Borrower. This Agreement and the Credit Agreement, as amended
         hereby, to which each Borrower is a party, are legal, valid and binding
         obligations of each Borrower, enforceable against each Borrower in
         accordance with their respective terms.

                  (e) There is no action, suit, investigation, litigation or
         proceeding affecting any Borrower or any of its Subsidiaries
         (including, without limitation, any environmental





                                       30


         action) pending or threatened before any court, governmental agency or
         arbitrator that (i) would be reasonably likely to have a material
         adverse effect on the business, condition (financial or otherwise),
         operations, performance, properties or prospects of any Borrower or any
         of its Subsidiaries or (ii) purports to affect the legality, validity
         or enforceability of this Agreement or the Credit Agreement, as amended
         hereby, or the consummation of any of the transactions contemplated
         hereby.

                  (f) The representations and warranties made by each Borrower
         in Article IV of the Credit Agreement, as amended hereby, are correct
         and true in all material respects on and as of the date hereof as
         though made on and as of the date hereof (it being understood and
         agreed that any such representation or warranty which by its terms
         applies only to a specified date shall be true and correct in all
         material respects only as of such specified date).

                  (g) Except as has been disclosed to each Bank, from December
         31, 2001, to the date of this Agreement, there has been no material
         adverse change in the Consolidated financial condition or Consolidated
         results of operations of any Borrower and its Consolidated
         Subsidiaries.

                  SECTION 6. Reference to and Effect on the Credit Agreement and
the Notes.

                  (a) On and after the effectiveness of this Agreement, each
         reference in the Credit Agreement to "this Agreement", "hereunder",
         "hereof" or words of like import referring to the Credit Agreement, and
         each reference in the Notes to "the Credit Agreement", "thereunder",
         "thereof" or words of like import referring to the Credit Agreement,
         shall mean and be a reference to the Credit Agreement, as amended by
         this Agreement.

                  (b) The Credit Agreement and the Notes, as specifically
         amended by this Agreement, are and shall continue to be in full force
         and effect and are hereby in all respects ratified and confirmed.

                  (c) The execution, delivery and effectiveness of this
         Agreement shall not, except as expressly provided herein, operate as a
         waiver of any right, power or remedy of any Bank or the Agent under the
         Credit Agreement, nor constitute a waiver of any provision of the
         Credit Agreement.

                  SECTION 7. Costs, Expenses and Taxes. The Borrowers, jointly
and securely, agree to pay on demand all costs and expenses of the Agent in
connection with the preparation, execution, delivery and administration,
modification and amendment of this Agreement and the other instruments and
documents to be delivered hereunder (including, without limitation, the
reasonable fees and expenses of counsel for the Agent) in accordance with the
terms of Section 8.04 of the Credit Agreement.

                  SECTION 8. Execution in Counterparts. This Agreement may be
executed in any number of counterparts and by different parties hereto in
separate counterparts, each of which when so executed shall be deemed to be an
original and all of which taken together shall constitute but one and the same
agreement. Delivery of an executed counterpart of a signature




                                       31



page to this Agreement by telecopier shall be effective as delivery of a
manually executed counterpart of this Agreement.

                  SECTION 9. Miscellaneous. Each Bank party hereto which is
also, on the date hereof, the issuing bank under any bilateral letter of credit
to which any Borrower is the account party thereof shall be deemed to have
waived its right, if any, to cash collateralize on demand such letter of credit
by its signature hereto.

                  SECTION 10. Undertaking; Post Closing Actions. The parties to
this Agreement hereby agree and undertake to each use their best efforts and to
act diligently and promptly in taking any action or step necessary to resolve or
correct any error, omission, open item or general inconsistency or other
discrepancy which may exist, or of which the parties hereto may hereafter become
aware, in any Credit Document.

                  SECTION 11. Governing Law. This Agreement shall be governed
by, and construed in accordance with, the laws of the State of New York.

                    [Signature pages to follow on next page]



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

                                  BORROWERS:

                                  THE WILLIAMS COMPANIES, INC.


                                  By   /s/ James G. Ivey
                                       ----------------------------------------
                                  Name:  James G. Ivey
                                  Title: Treasurer

                                  TEXAS GAS TRANSMISSION CORPORATION


                                  By     /s/ Richard Rodekohr
                                         --------------------------------------
                                  Name:  Richard Rodekohr
                                  Title: V.P. and C.F.O.


                                  TRANSCONTINENTAL GAS PIPE LINE CORPORATION


                                  By   /s/ Richard Rodekohr
                                       ----------------------------------------
                                  Name:  Richard Rodekohr
                                  Title: V.P. and C.F.O.

                                  NORTHWEST PIPELINE CORPORATION


                                  By    /s/ Richard Rodekohr
                                       ----------------------------------------
                                  Name:  Richard Rodekohr
                                  Title: V.P. and C.F.O.






                                  AGENT:

                                  CITIBANK, N.A., as Agent


                                  By:   /s/ J. Christopher Lyons
                                       ----------------------------------------
                                               Authorized Officer

                                  Date:    7/31          , 2002
                                        -----------------


                                  CO-SYNDICATION AGENTS:

                                  JPMORGAN CHASE BANK
                                  (formerly known as
                                  THE CHASE MANHATTAN BANK),
                                  as Co-Syndication Agent


                                  By:   /s/ Sanjeev Khemlani, V.P.
                                       ----------------------------------------
                                               Authorized Officer

                                  Date:   July 31, 2002
                                        -----------------



                                  COMMERZBANK AG,
                                  as Co-Syndication Agent


                                  By:   /s/ Subash Viswanathan
                                       ----------------------------------------
                                            Subash Viswanathan
                                            Senior Vice President

                                  By:   /s/ Brian Campbell
                                       ----------------------------------------
                                            Brian Campbell
                                            Senior Vice President

                                  Date:    July 30, 2002
                                        -----------------








                                  DOCUMENTATION AGENT:

                                  CREDIT LYONNAIS NEW YORK BRANCH
                                  as Documentation Agent


                                  By:  /s/ Bernard Weymuller
                                       ----------------------------------------
                                           Bernard Weymuller
                                           Senior Vice President

                                  Date:  July 31, 2002
                                        -----------------






                                  BANKS:

                                  CITIBANK, N.A.


                                  By:  /s/ J. Christopher Lyons
                                       ----------------------------------------
                                               Authorized Officer

                                  Date:     7/31        , 2002
                                        -----------------






                                  THE BANK OF NOVA SCOTIA


                                  By:  /s/ Nadine Bell
                                       ----------------------------------------
                                           Nadine Bell, Senior Manager

                                  Date:                  , 2002
                                        -----------------






                                  BANK OF AMERICA, N.A.


                                  By:  /s/ Claire Liu
                                       ----------------------------------------
                                           Claire M. Liu

                                  Date:                  , 2002
                                        -----------------






                                  BANK ONE, N.A. (MAIN OFFICE - CHICAGO)


                                  By:  /s/ Jeanie C. Gonzalez
                                       ----------------------------------------
                                               Authorized Officer

                                  Date:   July 31         , 2002
                                        -----------------






                                  JPMORGAN CHASE BANK
                                  (formerly known as
                                  THE CHASE MANHATTAN BANK)


                                  By:  /s/ Sanjeev Khemlani
                                       ----------------------------------------
                                           Sanjeev Khemlani

                                  Date:    July 31       , 2002
                                        -----------------






                                  COMMERZBANK AG
                                  NEW YORK AND GRAND CAYMAN BRANCHES


                                  By:
                                       ----------------------------------------
                                               Authorized Officer

                                  By:
                                       ----------------------------------------
                                               Authorized Officer

                                  Date:                  , 2002
                                        -----------------






                                  CREDIT LYONNAIS NEW YORK BRANCH


                                  By:  /s/ Bernard Weymuller
                                       ----------------------------------------
                                           Bernard Weymuller
                                           Senior Vice President

                                  Date:     July 31      , 2002
                                        -----------------






                                  MIZUHO CORPORATE BANK, LTD.


                                  By:  /s/ Jacques Azagury
                                       ----------------------------------------
                                               Authorized Officer
                                               Jacques Azagury
                                               Senior Vice President and Manager


                                  Date:   July 30        , 2002
                                        -----------------




                                  NATIONAL WESTMINSTER BANK PLC
                                  NEW YORK BRANCH


                                  By:
                                       ----------------------------------------

                                           Name:
                                                   ----------------------------
                                           Title:
                                                    ---------------------------

                                  Date:                  , 2002
                                        -----------------






                                  ABN AMRO BANK, N.V.


                                  By:
                                       ----------------------------------------
                                               Authorized Officer

                                  By:
                                       ----------------------------------------
                                               Authorized Officer

                                  Date:                  , 2002
                                        -----------------






                                  BANK OF MONTREAL


                                  By:
                                       ----------------------------------------
                                               Authorized Officer

                                  Date:                  , 2002
                                        -----------------






                                  THE BANK OF NEW YORK


                                  By:  /s/ Raymond J. Palmer
                                       ----------------------------------------
                                               Authorized Officer
                                               Raymond J. Palmer
                                               Vice President


                                  Date:    July 30        , 2002
                                        -----------------




                                  BARCLAYS BANK PLC


                                  By:  /s/ Richard B. Williams
                                       ----------------------------------------
                                               Authorized Officer
                                               Richard B. Williams
                                               Director


                                  Date:      7/31         , 2002
                                        -----------------





                                  CIBC INC.


                                  By: /s/  [ILLEGIBLE]
                                       ----------------------------------------
                                               Authorized Officer

                                  Date:   July 31        , 2002
                                        -----------------






                                  CREDIT SUISSE FIRST BOSTON


                                  By:  /s/ James P. Moran
                                       ----------------------------------------
                                               Authorized Officer
                                            James P. Moran, Director

                                  By:  /s/ Jay Chall
                                       ----------------------------------------
                                               Authorized Officer
                                               Jay Chall, Director

                                  Date:   July 30        , 2002
                                        -----------------






                                  ROYAL BANK OF CANADA


                                  By:  /s/ Linda M. Stephens
                                       ----------------------------------------
                                               Authorized Officer

                                  Date:     July 30      , 2002
                                        -----------------






                                  THE BANK OF TOKYO-MITSUBISHI, LTD.,
                                  HOUSTON AGENCY


                                  By:  /s/ K. Glasscock
                                       ----------------------------------------
                                               Authorized Officer
                                               K. Glasscock
                                               VP & Manager

                                  Date:     July 30      , 2002
                                        -----------------






                                  FLEET NATIONAL BANK
                                  f/k/a Bank Boston, N.A.


                                  By:
                                       ----------------------------------------
                                               Authorized Officer

                                  Date:                  , 2002
                                        -----------------






                                  SOCIETE GENERALE, SOUTHWEST AGENCY


                                  By:  /s/ J. Douglas McMurrey, Jr.
                                       ----------------------------------------
                                               Authorized Officer
                                           J. Douglas McMurrey, Jr.
                                               Managing Director

                                  Date:      July 31     , 2002
                                        -----------------






                                  TORONTO DOMINION (TEXAS), INC.


                                  By:  /s/ Ann S. Slanis
                                       ----------------------------------------
                                               Authorized Officer
                                               Ann S. Slanis
                                               Vice President

                                  Date:     July 31      , 2002
                                        -----------------






                                  UBS AG, STAMFORD BRANCH


                                  By:
                                       ----------------------------------------
                                               Authorized Officer

                                  By:
                                       ----------------------------------------
                                               Authorized Officer

                                  Date:                  , 2002
                                        -----------------






                                  WELLS FARGO BANK TEXAS, N.A.


                                  By:  /s/ J. Alan Alexander
                                       ----------------------------------------
                                               Authorized Officer
                                               J. Alan Alexander
                                               Vice President

                                  Date:     July 30      , 2002
                                        -----------------






                                  WESTDEUTSCHE LANDESBANK GIRONZENTRALE,
                                  NEW YORK BRANCH


                                  By:  /s/ [ILLEGIBLE]
                                       ----------------------------------------
                                               Authorized Officer

                                  By:  /s/ [ILLEGIBLE]
                                       ----------------------------------------
                                               Authorized Officer

                                  Date:                  , 2002
                                        -----------------






                                  CREDIT AGRICOLE INDOSUEZ


                                  By:  /s/ [ILLEGIBLE]
                                       ----------------------------------------
                                               Authorized Officer

                                  By:  /s/ [ILLEGIBLE]
                                       ----------------------------------------
                                               Authorized Officer

                                  Date:     07/30        , 2002
                                        -----------------






                                  SUNTRUST BANK


                                  By:  /s/ [ILLEGIBLE]
                                       ----------------------------------------
                                               Authorized Officer

                                  Date:     July 31      , 2002
                                        -----------------






                                  ARAB BANKING CORPORATION (B.S.C.)


                                  By:  /s/ [ILLEGIBLE]
                                       ----------------------------------------
                                               Authorized Officer

                                  Date:   August 1st     , 2002
                                        -----------------






                                  BANK OF CHINA, NEW YORK BRANCH


                                  By:
                                       ----------------------------------------
                                               Authorized Officer

                                  Date:                  , 2002
                                        -----------------






                                  BANK OF OKLAHOMA, N.A.


                                  By:  /s/ Robert D. Mattax
                                       ----------------------------------------
                                               Robert D. Mattax
                                               Senior Vice President

                                  Date:      July 30     , 2002
                                        -----------------






                                  BNP PARIBAS, HOUSTON AGENCY


                                  By:  /s/ Barton D. Schouest
                                       ----------------------------------------
                                               Barton D. Schouest
                                               Managing Director

                                  By:  /s/ Greg Smothers
                                       ----------------------------------------
                                               Greg Smothers
                                               Vice President

                                  Date:     July 31      , 2002
                                        -----------------






                                DZ BANK AG DEUTSCHE ZENTRAL-GENOSSENSCHAFTSBANK,


                                By:
                                     ----------------------------------------
                                             Authorized Officer

                                By:
                                     ----------------------------------------
                                             Authorized Officer

                                Date:                  , 2002
                                      -----------------






                                  KBC BANK N.V.


                                  By:  /s/ Jean-Pierre Diels
                                       ----------------------------------------
                                               Authorized Officer
                                               Jean-Pierre Diels
                                               First Vice President

                                  By:  /s/ Eric Raskin
                                       ----------------------------------------
                                               Authorized Officer
                                               Eric Raskin
                                               Vice President

                                  Date:                  , 2002
                                        -----------------






                                  FIRST UNION NATIONAL BANK


                                  By:
                                       ----------------------------------------
                                               Authorized Officer

                                  Date:                  , 2002
                                        -----------------



                                  SUMITOMO MITSUI BANKING CORPORATION


                                  By:  /s/ John Kissinger
                                       ----------------------------------------
                                           John Kissinger
                                           General Manager

                                  Date:    July 31       , 2002
                                        -----------------



                                  COMMERCE BANK, N.A.


                                  By:  /s/ Dennis R. Block
                                       ----------------------------------------
                                           Dennis R. Block, SVP

                                  Date:     July 30      , 2002
                                        -----------------



                                  WACHOVIA BANK, NATIONAL ASSOCIATION


                                  By:  /s/ David E. Humphreys
                                       ----------------------------------------
                                           David E. Humphreys
                                           Vice President

                                  Date:    7/30          , 2002
                                        -----------------




ACKNOWLEDGED
AND ACCEPTED BY
(with respect to Section 3):

CITICORP USA, INC.


By:
    ---------------------------------
            Authorized Officer


Date:                    , 2002
      ------------------





ANNEX A

                                   SCHEDULE VI

                                 PERMITTED LIENS


(a) (i) Any Lien existing on any property at the time of the acquisition thereof
and not created in contemplation of such acquisition by any Borrower or any of
its Subsidiaries, whether or not assumed by any Borrower or any of its
Subsidiaries, (ii) purchase money, construction or analogous Liens securing
obligations incurred in connection with or financing the direct or indirect
costs of or relating to the acquisition, construction (including design,
engineering, installation, testing and other related activities), development
(including drilling), improvement, repair or replacement of property (including
such Liens securing Debt or other obligations incurred in connection with the
foregoing or within 30 days of the later of (x) the date on which such Property
was acquired or construction, development, improvement, repair or replacement
thereof was complete or (y) if applicable, the final "in service" date for
commencement of full operations of such property), provided that all such Liens
attach only to the property acquired, constructed, developed, improved or
repaired or constituting replacement property, and the principal amount of the
Debt or other obligations secured by such Lien, together with the principal
amount of all other Debt secured by a Lien on such property, shall not exceed
the gross acquisition, construction, replacement and other costs specified above
of or for the property, (iii) Liens on receivables created pursuant to a sale,
securitization or monetization of such receivables, and Liens on rights of any
Borrower or any Subsidiary related to such receivables which are transferred to
the purchaser of such receivables in connection with such sale, securitization
or monetization; provided that the Liens secure only the obligations of any
Borrower or any of its Subsidiaries in connection with such sale, securitization
or monetization, (iv) Liens created by or reserved in any operating lease
(whether for real or personal property) entered into in the ordinary course of
business (excluding Synthetic Leases) provided that the Liens created thereby
(1) attach only to the Property leased to any Borrower or one of its
Subsidiaries, pursuant to such operating lease and (2) secure only the
obligations under such lease and supporting documents that do not create
obligations other than with respect to the leased property (including for rent
and for compliance with the terms of the lease), (v) Liens on property subject
to a Capital Lease created by such Capital Lease and securing only obligations
under such Capital Lease and supporting documents that do not create obligations
other than with respect to the leased property, (vi) any interest or title of a
lessor in the property subject to any Capital Lease, Synthetic Lease or
operating lease, (vii) Liens in the form of filed Uniform Commercial Code or
personal property security statements (or similar filings outside Canada and the
United States) to perfect any Permitted Lien, and (viii) Liens on up to four
aircraft owned or leased by any Borrower or any Subsidiary of any such Borrower.

(b) Any Lien existing on any property of a Subsidiary of any Borrower at the
time it becomes a Subsidiary of such Borrower and not created in contemplation
thereof and any Lien existing on any property of any Person at the time such
Person is merged or liquidated into or consolidated with any such Borrower or
any Subsidiary thereof and not created in contemplation thereof.







(c) Mechanics', materialmen's, workmen's, warehousemen's, carrier's, landlord's
or other similar Liens arising in the ordinary course of business securing
amounts incurred in the ordinary course of business which are not more than 90
days past due or are being contested in good faith by appropriate proceedings.

(d) Liens arising by reason of pledges, deposits or other security to secure
payment of workmen's compensation insurance or unemployment insurance, pension
plans or systems and other types of social security, and good faith deposits or
other security to secure tenders or leases of property or bids, in each case to
secure obligations of any Borrower or any of its Subsidiaries under such
insurance, tender, lease, bid or contract, as the case may be; provided,
however, that the only Liens permitted by this paragraph (d) shall be Liens
incurred in the ordinary course of business that do not secure any Debt or
accounts payable (other than accounts payable to the counterparties or obligees
applicable to the foregoing).

(e) Liens on deposits or other security given to secure public or statutory
obligations, or to secure or in lieu of surety bonds (other than appeal bonds)
and deposits as security for the payment of taxes or assessments or other
similar charges, in each case to secure obligations of any Borrower or any of
its Subsidiaries arising in the ordinary course of business; provided, however,
that the aggregate amount of obligations secured by Liens permitted by this
paragraph (e) shall not exceed 10% of Consolidated Tangible Net Worth of the
Borrower.

(f) Any Lien arising by reason of deposits with or the giving of any form of
security to any governmental agency or any body created or approved by law or
governmental regulation for any purpose at any time as required by law or
governmental regulation (i) as a condition to the transaction by any Borrower or
any of its Subsidiaries of any business or the exercise by any Borrower or any
of its Subsidiaries of any privilege or license, (ii) to enable any Borrower or
any of its Subsidiaries to maintain self-insurance or to participate in any fund
for liability on any insurance risks or (iii) in connection with workmen's
compensation, unemployment insurance, old age pensions or other social security
with respect to any Borrower or any of its Subsidiaries to share in the
privileges or benefits required for companies participating in such
arrangements.

(g) Liens incurred in the ordinary course of business upon rights-of-way
securing obligations (other than Debt and trade payables) of any Borrower or any
of its Subsidiaries.

(h) Undetermined mortgages and charges incidental to construction or maintenance
arising in the ordinary course of business which are not more than 90 days past
due or are being contested in good faith by appropriate proceedings.

(i) The right reserved to, or vested in, any municipality or governmental or
other public authority or railroad by the terms of any right, power, franchise,
grant, license, permit or by any provision of law, to terminate or to require
annual or other periodic payments as a condition to the continuance of such
right, power, franchise, grant, license or permit.

(j) The Lien of taxes, customs duties or other governmental charges or
assessments that are not at the time determined (or, if determined, are not at
the time delinquent), or that are delinquent but the validity of which is being
contested in good faith by any Borrower or any of its Subsidiaries by
appropriate proceedings and with respect to which reserves in conformity




with generally accepted accounting principles, if required by such principles,
have been provided on the books of the Borrower or the relevant Subsidiary of
any Borrower, as the case may be.

(k) The Lien reserved in (i) leases entered into in the ordinary course of
business for rent and for compliance with the terms of the lease in the case of
real or personal property leasehold estates or (ii) leases and sub-leases
granted to others that do not materially interfere with the ordinary course of
business of any Borrower and its Subsidiaries, taken as a whole.

(l) Defects and irregularities in the titles to any property (including
rights-of-way and easements) which are not material to the business, assets,
operations or financial condition of any Borrower and its Subsidiaries, taken as
a whole.

(m) Easements, exceptions or reservations in any property of any Borrower or any
of its Subsidiaries granted or reserved in the ordinary course of business for
the purpose of pipelines, roads, equipment, streets, alleys, highways,
railroads, the removal of oil, gas, coal or other minerals or timber, and other
like purposes, or for the joint or common use of real property, facilities and
equipment, or in favor of governmental authorities or public utilities, in each
case above which do not materially impair the use of such property for the
purposes for which it is held by any Borrower or such Subsidiary.

(n) Rights reserved to or vested in any municipality or public authority to
control or regulate any property of any Borrower or any of its Subsidiaries, or
to use such property in any manner which does not materially impair the use of
such property for the purposes for which it is held by any Borrower or such
Subsidiary.

(o) Any obligations or duties, affecting the property of any Borrower or any of
its Subsidiaries, to any municipality or public authority with respect to any
franchise, grant, license or permit.

(p) The Liens of any judgments in an aggregate amount for any Borrower and all
of its Subsidiaries (i) not in excess of $8,500,000, the execution of which has
not been stayed and (ii) not in excess of $40,000,000, the execution of which
has been stayed and which have been appealed and secured, if necessary, by a
stay or appeal bond or other security of similar effect and stay or appeal bonds
in respect of the judgments permitted in clause (ii).

(q) Zoning laws and ordinances.

(r) Liens existing on July 1, 2002, that secure only Debt and other obligations
incurred or committed and available for draw down on or prior to or outstanding
on July 1, 2002 and listed on Schedule IX as secured by such Liens.

(s) Liens existing on July 1, 2002 (i) that cover only immaterial assets and
(ii) that secure only Debt and other obligations incurred or committed and
available for draw down on or prior to or outstanding on July 1, 2002.

(t) Liens reserved in customary oil, gas and/or mineral leases for bonus or
rental payments and for compliance with the terms of such leases and Liens
reserved in customary operating agreements, farm-out and farm-in agreements,
exploration agreements, development agreements




and other similar agreements for compliance with the terms of such agreements;
provided that (i) such Liens do not secure Debt or accounts payable (other than
obligations under such lease or agreement, as the case may be) and (ii) such
leases and agreements are entered into in the ordinary course of business.

(u) Liens arising in the ordinary course of business out of all presently
existing and future division and transfer orders, advance payment agreements,
processing contracts, gas processing plant agreements, operating agreements, gas
balancing or deferred production agreements, participation, joint venture, joint
operating, pooling, unitization or communitization agreements, pipeline,
gathering or transportation agreements, platform agreements, drilling contracts,
injection or repressuring agreements, cycling agreements, construction
agreements, salt water or other disposal agreements, leases, sub-leases or
rental agreements, royalty interests, overriding royalty interests, farm-out and
farm-in agreements, exploration and development agreements, and any and all
other contracts or agreements covering, arising out of, used or useful in
connection with or pertaining to the exploration, development, operation,
production, sale, use, purchase, exchange, storage, separation, dehydration,
treatment, compression, gathering, transportation, processing, improvement,
marketing, disposal or handling of any property of a Person (each such order,
agreement or contract being a "Subject Document"), provided that and to the
extent that (i) such Subject Documents are entered into the ordinary course of
business and contain terms customary for such documents in the industry, (ii)
such permitted Liens shall not include any security interests in accounts
receivable or other receivables and do not secure Debt or accounts payable
(other than accounts payable arising under the particular Subject Document that
creates the Lien), and (iii) such Subject Documents do not create nor do such
Liens secure Financing Transactions.

(v) Liens arising by law under Section 9.343 of the Texas Uniform Commercial
Code or similar statutes of states other than Texas.

(w) Liens arising pursuant to the L/C Collateral Documents which secure the
obligations of the Borrowers and their Subsidiaries under this Agreement and
the L/C Agreement and certain public debt of TWC.

(x) Liens in existence prior to the date hereof in the nature of a right of
offset or netting of cash amounts owed arising in the ordinary course of
business (and Liens on the trading receivables owed by any trading counterparty
and/or affiliate thereof to a Borrower or any affiliate thereof granted by a
Borrower or any such affiliate thereof under agreements commonly in use in the
industry of a Borrower or such affiliate, but solely to secure the offset or
netting rights of such trading counterparty and/or affiliates thereof to the
payment of such trading receivables arising from and to the extent of the
trading obligations of a Borrower or any affiliate thereof to such trading
counterparty or its affiliates).

(y) Any Lien not permitted by paragraphs (a) through (x) above or (z) through
(ii) below securing Debt of the Borrower or any of its Subsidiaries if at the
time of, and after giving effect to, the creation or assumption of any such
Lien, the aggregate (without duplication) of the principal or equivalent amount
of all Debt of a Borrower and its Subsidiaries secured by all such Liens not so
permitted by paragraphs (a) through (x) above or (z) through (ii) below plus the
amount of Attributable Obligations (other than those relating to Liens described
in clause




(a)(viii)) of a Borrower and its Subsidiaries in respect of Sale and Lease-Back
Transactions permitted by Section 5.02(l) which does not exceed $100,000,000.

(z) To the extent applicable, any overriding royalties or other rights of
Pacific Northwest Pipeline Corporation, a Delaware corporation ("Pacific") and
Phillips Petroleum Company ("Phillips") or their respective successors in
interest under a contract dated January 9, 1953, as amended, between Phillips
and Pacific, to which the Borrower is successor in interest; and the obligations
of the Borrower to surrender, transfer, release or reassign the leases or
interests or rights to which said instruments relate under the conditions and
upon the occurrence of the events specified in said instruments.

(aa) Any option or other agreement to purchase any property of any Borrower or
any Subsidiary the purchase, sale or other disposition of which is not
prohibited by any other provision of this Agreement.

(bb) Liens securing reimbursement obligations with respect to letters of credit
that encumber documents and other property relating to such letters of credit
and the proceeds and products thereof.

(cc) Liens on the products and proceeds (including insurance, condemnation and
eminent domain proceeds) of and accessions to, and contract or other rights
(including rights under insurance policies and product warranties) derivative of
or relating to, property permitted to be subject to Liens under this Agreement
but subject to the same restrictions and limitations herein set forth as to
Liens on such property (including the requirement that such Liens on products,
proceeds, accessions and rights secure only obligations that such property is
permitted to secure).

(dd) Liens on the Property of a Project Finance Subsidiary or the Equity
Interests in such Project Finance Subsidiary securing the Non-Recourse Debt of
such Project Finance Subsidiary.

(ee) Liens on cash and short-term investments incurred in the ordinary course
of business, consistent with past practices and not for the purpose of securing
Debt (i) deposited by any Borrower or any of its Subsidiaries in margin
accounts with or on behalf of futures contract brokers or other counterparties
or (ii) pledged by any Borrower or any of its Subsidiaries, in the case of each
of clauses (i) and (ii) above, to secure its obligations with respect to (x)
contracts (including without limitation, physical delivery, option (whether
cash or financial), exchange, swap and futures contracts) for the purchase or
sale of any energy-related commodity or (y) interest rate or currency rate
management contracts.

(ff) Liens securing Debt of Williams Energy Partners LP and/or its
Subsidiaries; provided that such Liens shall only apply to assets owned
directly by Williams Energy Partners LP and/or its Subsidiaries.

(gg) Liens securing the Barrett Loan.

(hh) Liens securing Permitted Refinancing Debt (as defined below) (and related
obligations) covering the substantially the same collateral ) securing
(immediately prior to such refinancing) the Debt Refinanced (as defined below)
by such Permitted Refinancing Debt; provided that: (i) the principal amount of
such Permitted Refinancing Debt does not exceed the principal amount of the Debt
Refinanced (plus the amount of penalties, premiums (including required premiums
and the amount of any premiums reasonably determined by any Borrower being in
its best economic interest and as necessary to accomplish such Refinancing by
means of a tender offer or privately negotiated repurchase), fees, accrued
interest and reasonable expenses and other obligations incurred in connection
therewith) at the time of refinancing; and (ii) such Debt is incurred either by
any Borrower or by such Subsidiary that is the obligor of the Debt being
Refinanced. "Permitted Refinancing Debt" means any Debt (other than Debt
referred to clause




(gg) above) of any Borrower or any of its Subsidiaries issued to Refinance other
Debt of the Borrower or any such Subsidiaries. "Refinance" means, in respect of
any Debt (other than Debt referred to clause (gg) above), to refinance, extend,
renew, refund, repay, prepay, replace, acquire, redeem, defease or retire, or to
issue other Debt in exchange or replacement, directly or indirectly for, such
Debt in whole or in part.

(ii) Liens extending, renewing or replacing any of the foregoing Liens (other
than Liens referred to in clause (gg) above), provided that the principal amount
of the Debt or other obligation secured by such Lien is not increased or the
maturity thereof shortened and such Lien is not extended to cover any additional
Debt, obligations or property, other than like obligations of no greater
principal amount and the substitution of like property (or specific categories
of property of the same grantor to the extent the terms of the Lien being
extended, renewed or replaced, extended to or covered such categories of
property) of no greater value.




                                     ANNEX B

                                   SCHEDULE XI

                                RATING CATEGORIES



Pricing:          Pricing is based upon the lower rating from S&P and Moody's,
                  with respect to TWC's senior unsecured long-term debt. The
                  pricing grid is as follows:

EURODOLLAR RATE ADVANCES

<Table>
<Caption>
                                                                 APPLICABLE MARGIN
RATING                                                 --------------------------------------
CATEGORY          S&P OR MOODY'S RATINGS OF THE        < or = to 25% OF             >25% OF             APPLICABLE
OF THE             SENIOR UNSECURED LONG-TERM             COMMITMENTS              COMMITMENTS          COMMITMENT
BORROWER              DEBT OF THE BORROWER                   DRAWN                    DRAWN              FEE RATE
- --------          -----------------------------        ----------------            -----------          ----------
                                                                                            
  One                BB+ or Ba1 or higher                    3.00%                    3.25%                 .75%
  Two                      BB or Ba2                         3.50%                    3.75%                .875%
 Three                    BB- or Ba3                         4.00%                    4.25%                1.00%
  Four                     B+ or B1                          4.25%                    4.50%                1.25%
  Five                   B or B2 or lower                    4.50%                    4.75%                1.50%
</Table>

BASE RATE ADVANCES

<Table>
<Caption>
                                                                  APPLICABLE MARGIN
RATING                                                 --------------------------------------
CATEGORY        S&P OR MOODY'S RATINGS OF THE          < or = to 25% OF              >25% OF             APPLICABLE
OF THE           SENIOR UNSECURED LONG-TERM               COMMITMENTS              COMMITMENTS           COMMITMENT
BORROWER             DEBT OF THE BORROWER                    DRAWN                    DRAWN              FEE RATE
- --------        -----------------------------          ----------------            -----------           ----------
                                                                                            
  One                BB+ or Ba1 or higher                    1.75%                    2.00%                 .75%
  Two                      BB or Ba2                         2.25%                    2.50%                .875%
 Three                    BB- or Ba3                         2.75%                    3.00%                1.00%
  Four                     B+ or B1                          3.00%                    3.25%                1.25%
  Five                   B or B2 or lower                    3.25%                    3.50%                1.50%
</Table>




                                     ANNEX C

                                  SCHEDULE XII

                               PROGENY FACILITIES



$200,000,000 Parent Support Agreement dated as of December 23, 1998, made by The
Williams Companies, Inc. in favor of Castle Associates L.P. and Colchester LLC
and the other Indemnified Persons listed therein, as amended.

Amended and Restated Guarantee dated as of July 25, 2000, issued by The Williams
Companies, Inc. for the benefit of The Commonwealth Plan, Inc. and CBL Capital
Corporation, as amended. WFS-Pipeline Company, as lessee and Commonwealth, as
lessor entered into a Lease Agreement dated as of December 29, 1995.
WFS-Offshore Gathering Company, as lessee, and CBL, as lessor, entered into a
Lease Agreement dated December 29, 1995, as amended and restated.

$400,000,000 Term Loan Agreement dated as of April 7, 2000, among The Williams
Companies, Inc., as Borrower, and Credit Lyonnais New York Branch, as
Administrative Agent, and the Lenders named therein, as amended.

$192,570,931 aggregate Second Amended and Restated Participation Agreements (2
separate leases) dated as of January 28, 2002, among Williams Oil Gathering,
L.L.C. and Williams Field Services - Gulf Coast Company, L.P., as Lessees,
Williams Field Services Company, as Construction Agent, The Williams Companies,
Inc., as Guarantor, First Security Bank, N.A. as Certificate Trustee, Wells
Fargo Bank Nevada, N.A., as Collateral Agent, Bank of America, N.A., as
Administrative Agent and Administrator, and financial institutions named therein
as Certificate Holders, as amended.

$200,000,000 Term Loan Agreement dated as of January 29, 1999, among The
Williams Companies, Inc., as Borrower, and The Fuji Bank, Limited, as
Administrative Agent, and the Banks named therein, as amended.

The Prairie Wolf Facility.

Letter of Credit and Reimbursement Agreement dated as of May 15, 1994, among
Tulsa Parking Authority, The Williams Companies, Inc., Bank of Oklahoma,
National Association, and Bank of America, N.A. (formerly Nationsbank of Texas,
N.A.), relative to Tulsa Parking Authority First Mortgage Revenue Bonds, as
amended.

$127,000,000 Master Agreement dated as of March 6, 2000, among The Williams
Companies, Inc., as Guarantor, Williams TravelCenters, Inc., as Lessee, Atlantic
Financial Group, Ltd., as Lessor, SunTrust Bank, as Agent, and the Lenders named
therein, as amended.






$100,000,000 PPH Sponsor Agreement dated as of December 31, 2001, by The
Williams Companies, Inc., as Sponsor, in favor of Piceance Production Holdings
LLC, Plowshare Investors LLC, and other Indemnified Persons listed in the
agreement, as amended.

Legacy L/C's.

All documents, instruments, agreements, certificates and notices at any time
executed and/or delivered in connection with any of the foregoing.





                                     ANNEX D

                                  SCHEDULE XIII

                               POST-CLOSING ITEMS

         1. Consents, Licenses and Approvals. All governmental and third party
approvals (including consents) necessary in connection with the continuing
operations of the Borrower and its Midstream Subsidiaries and the execution,
delivery and performance of the Credit Documents shall have been obtained and be
in full force and effect, and all applicable waiting periods shall have expired
without any action being taken or threatened by any competent authority which
would restrain, prevent or otherwise impose adverse conditions on the execution
and delivery of the Credit Documents or the financing thereof, including,
without limitation, this Agreement. TO BE REQUESTED 10 DAYS AFTER THE DATE OF
THIS AGREEMENT.

         2. Legal Opinions. The Agent shall have received, with a counterpart
for each Issuing Bank, the executed legal opinions of local counsel to the
Agents in the States of Colorado, New Mexico and Wyoming, such other states as
requested by Agent which such legal opinions shall cover such matters incident
to the perfection of the Liens and the other transactions contemplated by the
Agreement as the Agent may reasonably require. TO BE DELIVERED 15 DAYS AFTER THE
DATE OF THIS AGREEMENT.

         3. Actions to Perfect Liens. The Agent shall have received properly
completed and executed financing statements (or other similar documents),
including, without limitation, duly executed financing statements on form UCC-1,
necessary or, in the opinion of the Collateral Agent, desirable to perfect the
Liens created by the Security Documents, and the Collateral Agent shall be
reasonably satisfied that, other than filing such financing statements and other
similar documents and the Mortgages, no other filings, recordings, registrations
or other actions are necessary or, in the opinion of the Collateral Agent,
desirable to perfect the Liens created by the Security Documents. TO BE
COMPLETED 60 DAYS AFTER THE DATE OF THIS AGREEMENT.

         4. Surveys. At the request of the Agent, the Agent shall have received
boundary line surveys of (i) the property leased by the Borrower and the
Midstream Subsidiaries located in the States of Alaska, Arkansas, Colorado, New
Mexico, Tennessee, and Wyoming, and such other states as may be designated by
the Agent, (ii) the real property owned by Borrower and the Midstream
Subsidiaries located in the States of Alaska, Arkansas, Colorado, New Mexico,
Tennessee, and Wyoming, and such other states as may be designated by the Agent,
other than the Gathering Systems which boundary line surveys shall in each case
be (A) dated a date reasonably close to the date of the Agreement (as determined
by the Agent), (B) prepared by an independent professional licensed land
surveyor reasonably satisfactory to the Agent, (C) prepared in a manner
reasonably acceptable to the Agent and (D) shall reflect that the buildings,
structures and other improvements necessary for the ownership and operation of
the




processing plants purported to be located on the property surveyed do not
protrude on any adjoining property nor do any improvements located on land
adjacent to the property surveyed encroach upon the property surveyed, which
encroachments or protrusions in either case could reasonably be expected to
adversely affect the ability of the Borrower or the Midstream Subsidiaries to
own, maintain, operate or sell the property surveyed and/or the improvements
located thereon. The Agent shall have received a certificate of an authorized
officer of the Borrower certifying said boundary line surveys are true and
correct as of the date of the Agreement. TO BE COMPLETED 60 DAYS AFTER REQUEST
BY THE AGENT.

         5. Flood Insurance. If requested by the Agent, the Agent shall have
received a policy of flood insurance in form and substance satisfactory to the
Agent. TO BE COMPLETED 60 DAYS AFTER THE DATE OF THIS AGREEMENT.

         6. Copies of Documents. If requested by the Agent, the Agent shall have
received a copy, certified by such parties as the Agent may deem appropriate, of
any document burdening the property covered by any Mortgage. TO BE COMPLETED 30
DAYS AFTER THE DATE OF THIS AGREEMENT.

         7. Lien Searches. The Agent shall have received the results of recent
lien searches by Persons reasonably satisfactory to the Agent, in each of the
jurisdictions and offices where assets of the Borrower or any of the Midstream
Subsidiaries are located or recorded, and such searches shall reveal no Liens on
any assets of the Borrower or any such Subsidiary, except for (i) Liens
permitted by the Agreement and (ii) Liens to be released or assigned to the
Agent, for the ratable benefit of the Banks, on the date of the Agreement in
connection with the execution, delivery and performance of the Credit Documents.
TO BE COMPLETED 30 DAYS AFTER THE DATE OF THIS AGREEMENT.

         8. Insurance. The Agent shall have received (i) copies of, or an
insurance broker's or agent's certificate as to coverage under, the insurance
policies required by the Agreement and the applicable provisions of the Security
Documents, each of which policies shall be endorsed or otherwise amended to
include a "standard" or "New York" lender's loss payable endorsement and to name
the Agent as additional insured, in form and substance satisfactory to the
Collateral Agent and (ii) confirmation from such insurance broker that the scope
and amount of coverage maintained by the Borrower and its Subsidiaries are
comparable to the scope and amount of the insurance maintained by other
companies of similar size in the same industry and general location. TO BE
COMPLETED 30 DAYS AFTER THE DATE OF THIS AGREEMENT.

         9. Solvency. If requested by the Agent, the Agent shall have received
(i) a satisfactory solvency opinion from an independent valuation firm
satisfactory to the Issuing Banks which shall document the solvency of the
Borrower and its Subsidiaries, on a consolidated basis, after giving effect to
the execution, delivery and performance of the Credit Documents, the other
transactions contemplated thereby and the extensions of credit contemplated
hereby and (ii) a certificate from the chief financial officer of the




Borrower (in his capacity as chief financial officer) as to the solvency of each
of the Borrower and its Subsidiaries, on a consolidated basis, after giving
effect to the execution, delivery and performance of the Credit Documents, the
other transactions contemplated hereby and the extensions of credit contemplated
hereunder. TO BE COMPLETED 60 DAYS AFTER THE DATE OF THIS AGREEMENT.

         10. Environmental Reports. If requested by the Agent, the Agent shall
have received environmental assessment reports from E.vironment, Inc. with
respect to processing, refining and other facilities and other parcels of real
property owned or leased by the Borrower and the Midstream Subsidiaries, and the
Issuing Banks shall be reasonably satisfied with the potential environmental
liabilities to which the Borrower and its Subsidiaries may be subject based on
such reports. TO BE COMPLETED 60 DAYS AFTER THE DATE OF THIS AGREEMENT.

         11. Title Vested in Borrower. The Agent and the Issuing Banks shall be
reasonably satisfied that all filings and other actions required to be taken or
made in order to vest title to all of the Properties of the Borrower and the
Midstream Subsidiaries shall have been taken or made and are in full force and
effect. TO BE COMPLETED 60 DAYS AFTER THE DATE OF THIS AGREEMENT.

         12. Mortgages. The Collateral Agent shall receive, on or before August
9, 2002, evidence of the completion of all recordings and filings of each
initial "Mortgage" (as defined in the L/C Agreement)(which "initial" Mortgages
consist of Mortgages filed in Colorado, Wyoming and New Mexico) as may be
necessary, in the opinion of the Collateral Agent, to perfect the Liens in favor
of the Collateral Agent created by such Mortgages. Thereafter, the Collateral
Agent shall receive, within fifteen Business Days of the delivery of any
additional Mortgage to the Borrower, evidence of such recordings and filings as
may be necessary, in the opinion of the Collateral Agent, to perfect the Liens
in favor of the Collateral Agent created by such additional Mortgage. Upon the
request of Collateral Agent, the Borrower shall provide all assistance as may be
necessary in connection with the preparation of the Mortgages.

         13. Consents to the Pledging of Excluded Equity Interest. TWC shall use
its best efforts to obtain all third party consents necessary to pledge the
Excluded Equity Interests in (other than the Equity Interest in Williams Mobile
Bay Producer Services, L.L.C. and the Equity Interest of Williams Energy
Partners L.P. held by Williams GP LLC) pursuant to the Pledge Agreement. TO BE
REQUESTED 30 DAYS AFTER THE DATE OF THIS AGREEMENT AND TO BE PURSUED DILIGENTLY
THEREAFTER

         14. Additional Matters. All corporate and other proceedings, and all
documents, instruments and other legal matters in connection with the
transactions contemplated by this Agreement and the other Credit Documents shall
be satisfactory in form and substance to the Administrative Agent, and the
Administrative Agent shall have received such other documents and legal opinions
in respect of any aspect or consequence of the transactions contemplated hereby
or thereby as it shall reasonably request.




                                     ANNEX E

                                  SCHEDULE XIV

                             MIDSTREAM SUBSIDIARIES



Delaware
- --------
Williams Energy Services, L.L.C.
Williams Natural Gas Liquids, Inc.
Williams Midstream Natural Gas Liquids, Inc.
Williams Express, Inc. (a Delaware corporation)
Williams Field Services Group, Inc.
Williams Alaska Pipeline Company, L.L.C.
Williams Bio-Energy, L.L.C.
Williams Merchant Services Company, Inc.
Mapco, Inc.
WFS Enterprises, Inc.
WFS-Liquids Company
Williams Field Services Company
Williams Gas Processing Company
Williams Gas Processing - Wamsutter Company
North Padre Island Spindown, Inc.
Williams Ethanol Services, Inc.
Williams Energy Marketing & Trading Company
Worthington Generation, L.L.C.
Memphis Generation, L.L.C.
Gas Supply, L.L.C.
Williams Generation Company - Hazelton
Juarez Pipeline Company
MAPL Investments, Inc.
Williams Refining & Marketing, L.L.C.
Williams Memphis Terminal, Inc.
Williams Mid-South Pipelines, L.L.C.
Williams Olefins, L.L.C.
Williams Olefins Feedstock Pipelines, L.L.C.
Williams Generating Memphis, LLC
Williams Field Services-Gulf Coast Company, L.P.
Williams Gas Pipeline Company, L.L.C.
Williams Petroleum Pipeline Systems, Inc.
WFS - NGL Pipeline Company Inc.
WFS - Offshore Gathering Company
Baton Rouge Fractionators, L.L.C.
Tri-States NGL Pipeline, L.L.C.
WILPRISE Pipeline Company, L.L.C.




Alaska
- ------
Williams Express, Inc. (an Alaska corporation)
Williams Alaska Petroleum, Inc.
Williams Alaska Air Cargo Properties, L.L.C.
Williams Lynxs Alaska CargoPort, L.L.C.

Texas
- -----
Black Marlin Pipeline Company
Rio Grande Pipeline Company

Kansas
- ------
Nebraska Energy, L.L.C




                                    EXHIBIT A



                              Please see attached.