EXHIBIT 10.7
                                                                  EXECUTION COPY

                  FIRST AMENDMENT TO COLLATERAL TRUST AGREEMENT

         This First Amendment dated as of October 31, 2002 (this "Amendment") to
the Collateral Trust Agreement dated as of July 31, 2002 (as amended and
modified from time to time, the "Collateral Trust Agreement"), is among The
Williams Companies, Inc., a Delaware corporation (the "Company"), and each of
its Subsidiaries which is or which subsequently becomes a party thereto
(together, with the Company, the "Debtors"), in favor of Citibank, N.A., as
collateral trustee ("Collateral Trustee") for the benefit of the holders of the
Secured Obligations. All capitalized terms used herein and not otherwise defined
shall have the meanings ascribed to such terms in the Collateral Trust
Agreement.

                                   WITNESSETH:

         WHEREAS, the parties hereto have agreed to amend certain provisions of
the Collateral Trust Agreement;

         NOW, THEREFORE, in consideration of the mutual covenants contained
herein and for other good and valuable consideration, the receipt and
sufficiency of which are hereby acknowledged, the parties hereto agree that the
Collateral Trust Agreement is hereby amended as follows:

1.       Amendments

         (a) Pursuant to the terms of those two certain Consent and Waivers each
         dated as of September 20, 2002, by and among the Company and the other
         signatories thereto, the Collateral Trust Agreement was amended to (i)
         remove Williams Field Services - Gulf Coast Company, L.P. as a Debtor
         and (ii) add Williams Gulf Coast Gathering Company, LLC as Debtor.
         Pursuant to this Amendment, the following additional parties are added
         as Debtors: WFS - Pipeline Company; WFS Gathering Company, L.L.C.;
         Williams Field Services - Matagorda Offshore Company, LLC; Williams Gas
         Processing - Mid Continent Region Company; WFS-OCS Gathering Co.;
         HI-BOL Pipeline Company; Goebel Gathering Company, L.L.C.; Williams
         Petroleum Services, LLC; Longhorn Enterprises of Texas, Inc.; and
         Williams GP LLC.

         (b) The introductory paragraph of the Collateral Trust Agreement is
         hereby amended and restated in its entirety and replaced with the
         following:

                  "COLLATERAL TRUST AGREEMENT, dated as of July 31, 2002 (this
                  "Agreement"), among THE WILLIAMS COMPANIES, INC., a Delaware
                  corporation (the "Company"), the subsidiaries of the Company
                  which are or which subsequently become parties hereto (the
                  "Subsidiaries" and collectively





                  with the Company, the "Debtors"), and CITIBANK, N.A., as
                  Collateral Trustee (the "Collateral Trustee"):"

         (c) The definition of Release Notice set forth in Section 1.1 of the
         Collateral Trust Agreement is hereby amended and restated in its
         entirety and replaced with the following:

                  "Release Notice: shall mean a written notice, signed by a
                  Responsible Officer of the Company and the Debtors with
                  interests in the Collateral to be released, that requests the
                  release of Liens held in favor of the Collateral Trustee in
                  such Collateral and that (a) certifies to the Collateral
                  Trustee that the release of such Collateral is permitted under
                  the applicable terms of the Principal Bank Facility and the
                  Principal L/C Facility (collectively, the "Facilities") and
                  has either been consented to by the Required Decision Group or
                  is expressly permitted under the applicable terms of the
                  Facilities without the need of any such consent, (b) sets
                  forth the estimated proceeds from the disposition of such
                  Collateral and the intended application thereof and confirms
                  that such application is in accordance with the applicable
                  requirements of the Facilities, and (c) covenants to the
                  Collateral Trustee that the proceeds of such Collateral shall
                  be applied as described therein."

         (d) The following Section 1.2 is hereby added to the Collateral Trust
         Agreement:

                  "1.2 Incorporated Definitions and Provisions. All defined
         terms that are incorporated into this Agreement by reference to other
         agreements shall incorporate into this Agreement the provisions of such
         other agreements that exist as of the date hereof; however, such
         provisions shall be automatically modified herein by any amendment or
         modification that takes place after the date hereof in such other
         referenced agreement(s); subject to the following limitations: (a) no
         such amendment or modification shall be effective with respect to this
         Agreement until Collateral Trustee shall have received a copy of such
         amendment or modification and (b) no provision of any such amendment or
         modification that imposes any additional liability, obligation or
         adverse effect on the Collateral Trustee shall be effective with
         respect to this Agreement unless the Collateral Trustee has executed a
         written consent to such provision or to the amendment or modification
         in which such provision is set forth.

         (e) Section 2.5 of the Collateral Trust Agreement is hereby amended and
         restated in its entirety and replaced with the following:

                  "2.5 Releases of Collateral.

                           (a) In connection with any proposed sale, assignment,
                  transfer, or other disposition of Collateral, the Company and
                  the Debtors with an interest in such Collateral may deliver a
                  Release Notice to the Collateral Trustee which the





                  Collateral Trustee shall promptly distribute to the holders of
                  Secured Obligations under the Principal Bank Facility and the
                  Principal L/C Facility. Each of the holders of Secured
                  Obligations under either of the Facilities shall have 15 days
                  after the receipt of such Release Notice to notify the
                  Collateral Trustee if such holder believes that the release of
                  such Collateral is improper because (i) the release of such
                  Collateral is not permitted under the applicable terms of the
                  Facilities or has not been consented to by the Required
                  Decision Group or (ii) the intended application of the
                  proceeds from the disposition of such Collateral is not in
                  accordance with the applicable requirements of the Facilities
                  (any such certificate being referred to herein as an
                  "Objection Certificate"). If an Objection Certificate is not
                  delivered during such 15 day period, then the Collateral
                  Trustee shall be authorized to and agrees to release the Liens
                  of the Collateral Trustee in the Collateral described in the
                  Release Notice upon the contemporaneous receipt by Collateral
                  Trustee of the amount of the proceeds, if any, of such
                  permitted disposition that are required to be delivered to the
                  Collateral Trustee pursuant to the terms of the Facilities or
                  any of the Security Documents and as set out in the Release
                  Notice. If during the 15 day period referenced above the
                  Collateral Trustee receives an Objection Certificate, then the
                  Liens will not be released at the end of such period and the
                  Collateral Trustee will not take any actions requested under
                  the Release Notice until (x) such Objection Certificate shall
                  be withdrawn in writing by the holder of Secured Obligations
                  which shall have delivered the same to the Collateral Trustee
                  or (y) until the Collateral Trustee shall have received a
                  final order of a court of competent jurisdiction directing it
                  to release the Liens of the Collateral Trustee in such
                  Collateral. In connection with any release pursuant to this
                  Section 2.5, upon receipt of the appropriate amount of
                  proceeds from such disposition, if any, the Collateral Trustee
                  shall at the request of the Company execute a partial release
                  of the Liens granted under the Security Documents and such
                  instruments, including UCC-3 amendments or termination
                  statements, as are necessary to partially release or terminate
                  any documents constituting public notice of the Security
                  Documents and the Liens granted thereunder and shall assign
                  and transfer, or cause to be assigned and transferred, and
                  shall deliver, or cause to be delivered, to the applicable
                  Debtors, all property thereof then held by the Collateral
                  Trustee in which the Lien of the Collateral Trustee has been
                  released.

                           (b) Upon Collateral Trustee's receipt of the portion
                  of the gross proceeds from a disposition, if any, that are
                  required to be delivered to the Collateral Trustee pursuant to
                  the terms of the Facilities and as specified in the Release
                  Notice, Collateral Trustee shall hold such proceeds as
                  Collateral under this Agreement until Company delivers to
                  Collateral Trustee a division of proceeds certificate (a
                  "Division Certificate"). Concurrently with delivery of any
                  Division Certificate to the Collateral Trustee, the Company
                  shall deliver copies of such Division Certificate to the Agent
                  (as such term is defined in the Principal Bank Facility) for
                  the Banks that are party to the Principal Bank Facility and to




                  the Agent (as such term is defined in the Principal L/C
                  Facility) for the Banks that are party to the Principal L/C
                  Facility. The Division Certificate shall be prepared based on
                  the terms of Section 2.04(c) of the Principal Bank Facility
                  and Section 2.3 (b) of the Principal L/C Facility. Upon
                  receipt of such a Division Certificate the Collateral Trustee
                  shall as soon as practicable disburse the proceeds, if any, it
                  has received consistent with the terms of the Division
                  Certificate. If Collateral Trustee obtains any proceeds
                  resulting from the sale of Collateral that are not required to
                  be delivered pursuant to the terms of Section 2.04(c) of the
                  Principal Bank Facility or Section 2.3 (b) of the Principal
                  L/C Facility to a holder of Secured Obligations or another
                  creditor of the Company or its Subsidiaries then the
                  Collateral Trustee shall as soon as practicable deliver such
                  proceeds to the Company free and clear of any Liens."

         (f) The following Section 2.10 is hereby added to the Collateral Trust
         Agreement:

                           "2.10 Releases in Connection with Permitted
                  Dispositions. Section 5.2(e) of the Principal L/C Facility and
                  Section 5.02(l) of the Principal Bank Facility provide that
                  certain dispositions will be permitted and that any Guarantor
                  (as defined therein) that is the owner of the assets subject
                  to the disposition permitted pursuant to Section 5.2(e) of the
                  Principal L/C Facility and Section 5.02(l) of the Principal
                  Bank Facility and whose Equity Interests (as defined therein)
                  are being conveyed in connection with such disposition (as
                  well as the owners' of such Equity Interests, to the extent of
                  such permitted distribution) shall be automatically released
                  as a party to this Agreement and to the other Security
                  Documents. The Debtors and the Collateral Trustee hereby
                  acknowledge and agree to the automatic release described above
                  and the Collateral Trustee agrees to and is hereby authorized
                  to execute documents and notices evidencing such releases;
                  provided, however, Collateral Trustee shall not be required to
                  execute any documents or notices in connection with any
                  automatic release unless Collateral Trustee has received
                  satisfactory certifications and documentation that the
                  conditions specified in Section 5.2(e) of the Principal L/C
                  Facility and Section 5.02(l) of the Principal Bank Facility
                  for obtaining an automatic release, if any, have been
                  satisfied."

         (g) The following Section 2.11 is hereby added to the Collateral Trust
         Agreement:

                           "2.11 Execution of Non-Disturbance and Attornment
                  Agreement. Collateral Trustee agrees to and is hereby
                  authorized to execute a non-disturbance and attornment
                  agreement in accordance with the provisions of Section 5.2(e)
                  of the Principal L/C Facility and Section 5.02(l) of the
                  Principal Bank Facility which agreement shall be substantially
                  in the form attached to such Principal L/C Facility and
                  referenced in such Section 5.2(e) and such Section 5.02(l)."

         (h) The following Section 6.9 is hereby added to the Collateral Trust
         Agreement:





                  "Section 6.9 Joinder. Pursuant to the terms of the Master Debt
                  Agreements certain Persons (hereafter referred to as the
                  "Joining Subsidiaries") may desire to or be required to join
                  this Agreement as Debtors. In connection with any such joinder
                  the Joining Subsidiary shall cause to be executed and
                  delivered (a) a joinder agreement substantially in the form of
                  the joinder agreement attached hereto as Schedule II and (b)
                  authorization documentation, corporate documentation,
                  perfection documentation and opinion letters reasonably
                  satisfactory to the Collateral Trustee reflecting the status
                  of such Joining Subsidiary and the enforceability of such
                  agreements with respect to such Joining Subsidiary; provided,
                  however, that the Collateral Trustee shall have no obligations
                  with respect to the additional Collateral that results from
                  the addition of a Joining Subsidiary as a Debtor pursuant to
                  this Agreement prior to the delivery of such additional
                  Collateral, and Collateral Trustee shall have no duty to
                  solicit the delivery of any Collateral from any Debtor."

         (i) A new Schedule II to the Collateral Trust Agreement is hereby added
         which is the document attached as Schedule II hereto.

2. Acknowledgement. Williams Energy Marketing & Trading Company hereby
acknowledges that it is a Debtor and original signatory to the Collateral Trust
Agreement effective as of July 31, 2002.

3. Conditions to Effectiveness. This Amendment shall be deemed effective (the
"Effective Date") upon the satisfaction of the conditions precedent as set out
in Section 3.1 of that certain Amended and Restated Credit Agreement dated as of
October 31, 2002, among Company and the Financial Institutions named therein,
without giving effect to the terms of Section 3.3; provided, however, that the
Collateral Trustee shall have no obligations with respect to the additional
Collateral that results from the addition of Debtors as parties to the
Collateral Trust Agreement pursuant to this Amendment prior to the delivery of
such additional Collateral, and the Collateral Trustee shall have no duty to
solicit the delivery of any Collateral from any Debtor. Notwithstanding anything
to the contrary herein, any provision or portion of a provision in this
Amendment that is or is determined to be a release of Collateral shall not be
effective to release such Collateral until the Collateral Trustee has received
satisfactory documentation that such release of Collateral is permitted by or
has been properly approved in accordance with the terms of the Collateral Trust
Agreement.

4. Governing Law. This Amendment shall be governed by, and construed and
enforced in accordance with, the laws of the State of New York.

5. Reference to and Effect on the Collateral Trust Agreement. The amendments set
forth herein are limited precisely as written and shall not be deemed to be a
consent or waiver to, or modification of any other term or condition in the
Collateral Trust Agreement or any of the documents referred to therein. Except
as expressly amended and consented hereby, the terms and conditions of the
Collateral Trust Agreement shall continue in full force and effect, and as
amended hereby, the Collateral Trust Agreement is ratified and confirmed in all
respects. On





and after the Effective Date, the Collateral Trust Agreement shall be deemed to
mean the Collateral Trust Agreement as amended hereby.

6. Counterparts. This Amendment may be executed in several counterparts, each of
which shall be deemed an original, but all of which together shall constitute
one and the same agreement.

Schedule II:  Form of Joinder Agreement

Houston/1474925



         IN WITNESS WHEREOF, the parties hereto, acting through their duly
authorized representatives, have caused this Amendment to be signed in their
respective names.


                                   The Williams Companies, Inc.,
                                   as Debtor

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


                                   AGENT:

                                   CITICORP USA, INC., as Agent

                                   By     /s/ Todd J. Mogil
                                      ------------------------------------------
                                   Name:  Todd J. Mogil
                                   Title: Vice President



                                   BANKS AND ISSUING BANKS:

                                   CITIBANK N.A., as Issuing Bank


                                   By     /s/ Todd J. Mogil
                                      ------------------------------------------
                                   Name:  Todd J. Mogil
                                   Title: Attorney-in-Fact


                                   CITIBANK N.A., as Collateral Trustee


                                   By     /s/ Camille Tomao
                                      ------------------------------------------
                                   Name:  Camille Tomao
                                   Title: Vice President



                                   CITICORP USA, INC.



                                   By     /s/ Todd J. Mogil
                                      ------------------------------------------
                                   Name:  Todd J. Mogil
                                   Title: Vice President




                                   BANKS:

                                   CITICORP USA, INC.



                                   By     /s/ Todd J. Mogil
                                      ------------------------------------------
                                   Name:  Todd J. Mogil
                                   Title: Vice President







                                   THE BANK OF NOVA SCOTIA, as Canadian
                                   Issuing Bank and Bank


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



                                   BANK OF AMERICA, N.A., as Issuing
                                   Bank and Bank

                                   By     /s/ Claire Liu
                                      ------------------------------------------
                                   Name:  Claire Liu
                                   Title: Managing Director


                                   JP MORGAN CHASE BANK


                                   By:    /s/ Robert W. Traband
                                      ------------------------------------------
                                   Name:  Robert W. Traband
                                   Title: Vice President



                                   TORONTO DOMINION (TEXAS), INC.


                                   By:     /s/ Jill Hall
                                      ------------------------------------------
                                   Name:   Jill Hall
                                   Title:  Vice President


                                   CREDIT LYONNAIS NEW YORK BRANCH


                                   By:     /s/ Olivier Audemard
                                      ------------------------------------------
                                   Name:   Olivier Audemard
                                   Title:  Senior Vice President






                                   MERRILL LYNCH CAPITAL CORP.


                                   By:     /s/ Carol  J. E. Feeley
                                      ------------------------------------------
                                   Name:   Carol J. E. Feeley
                                   Title:  Vice President



                                   LEHMAN COMMERCIAL PAPER INC.


                                   By:     /s/ Francis Chang
                                      ------------------------------------------
                                   Name:   Francis Chang
                                   Title:  Authorized Signatory



                                   CO-SYNDICATION AGENTS:

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


                                   By      /s/ Robert W. Traband
                                         ---------------------------------------
                                   Name:   Robert W. Traband
                                   Title:  Vice President






                                   COMMERZBANK AG,
                                   as Co-Syndication Agent

                                   By      /s/ Harry Yergey
                                        ----------------------------------------
                                   Name:   Harry Yergey
                                   Title:  Senior Vice President and Manager

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


                                   DOCUMENTATION AGENT:

                                   CREDIT LYONNAIS NEW YORK BRANCH
                                   as Documentation Agent

                                   By:     /s/ Olivier Audemard
                                          --------------------------------------
                                   Name:   Olivier Audemard
                                   Title:  Senior Vice President







                                   THE BANK OF NOVA SCOTIA


                                   By:     /s/ N. Bell
                                        ----------------------------------------
                                   Name:   N. Bell
                                   Title:  Senior Manager


                                   BANK OF AMERICA, N.A.


                                   By      /s/ Claire M. Liu
                                          --------------------------------------
                                   Name:   Claire M. Liu
                                   Title:  Managing Director



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


                                   By      /s/ Jeanie C. Gonzalez
                                        ----------------------------------------
                                   Name:   Jeanie C. Gonzalez
                                   Title:  Director



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


                                   By      /s/ Robert W. Traband
                                         ---------------------------------------
                                   Name:   Robert W. Traband
                                   Title:  Vice President



                                   COMMERZBANK AG
                                   NEW YORK AND GRAND CAYMAN BRANCHES

                                   By      /s/ Brian Campbell                 l
                                        ----------------------------------------
                                   Name:   Brian Campbell
                                   Title:  Senior Vice President


                                   By      /s/ W. David Suttles
                                        ----------------------------------------
                                   Name:   W. David Suttles
                                   Title:  Vice President








                                   CREDIT LYONNAIS NEW YORK BRANCH


                                   By:     /s/ Olivier Audemard
                                          --------------------------------------
                                   Name:   Olivier Audemard
                                   Title:  Senior Vice President


                                   NATIONAL WESTMINSTER PLC



                                   By:     /s/ Charles Greer
                                       -----------------------------------------
                                   Name:   Charles Greer
                                   Title:  Senior Vice President



                                   ABN AMRO BANK, N.V.


                                   By:     /s/ Frank R. Russo, Jr.
                                        ----------------------------------------
                                   Name:   Frank R. Russo, Jr.
                                   Title:  Group Vice President

                                   By:     /s/ Jeffrey G. White
                                        ----------------------------------------
                                   Name:   Jeffrey G. White
                                   Title:  Vice President



                                   BANK OF MONTREAL


                                   By:     /s/ Mary Lee Latta
                                        ----------------------------------------
                                   Name:   Mary Lee Latta
                                   Title:  Director




                                   THE BANK OF NEW YORK


                                   By:     /s/ Raymond J. Palmer
                                        ----------------------------------------
                                   Name:   Raymond J. Palmer
                                   Title:  Vice President








                                   BARCLAYS BANK PLC


                                   By:     /s/ Nicholas A. Bell
                                         ---------------------------------------
                                   Name:   Nicholas A. Bell
                                   Title:  Director



                                   CIBC INC.


                                   By:     /s/ George Knight
                                        ----------------------------------------
                                   Name:   George Knight
                                   Title:  Managing Director



                                   CREDIT SUISSE FIRST BOSTON


                                   By:     /s/ James P. Moran
                                         ---------------------------------------
                                   Name:   James P. Moran
                                   Title:  Director

                                   By:     /s/ Ian W. Nalitt
                                        ----------------------------------------
                                   Name:   Ian W. Nalitt
                                   Title:  Associate



                                   ROYAL BANK OF CANADA


                                   By:     /s/ Peter Barnes
                                     -------------------------------------------
                                   Name:   Peter Barnes
                                   Title:  Senior Manager



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


                                   By      /s/ Kelton Glassock
                                       -----------------------------------------
                                   Name:   Kelton Glassock
                                   Title:  Vice President and Manager


                                   By      /s/ Jay Fort
                                       -----------------------------------------
                                   Name:   Jay Fort
                                   Title:  Vice President





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


                                   By      /s/ Matthew W. Speh
                                       -----------------------------------------
                                   Name:   Matthew W. Speh
                                   Title:  Authorized Officer


                                   SOCIETE GENERALE, SOUTHWEST AGENCY


                                   By      /s/ J. Douglas McMurrey, Jr.
                                       -----------------------------------------
                                   Name:   J. Douglas McMurrey, Jr.
                                   Title:  Managing Director


                                   TORONTO DOMINION (TEXAS), INC.


                                   By:     /s/ Jill Hall
                                           -------------------------------------
                                   Name:   Jill Hall
                                   Title:  Vice President


                                   UBS AG, STAMFORD BRANCH


                                   By:     /s/ Kelly Smith
                                       -----------------------------------------
                                   Name:   Kelly Smith
                                   Title:  Director Recovery Management


                                   By:     /s/ Robert Reuter
                                       -----------------------------------------
                                   Name:   Kelly Smith
                                   Title:  Executive Director


                                   WELLS FARGO BANK TEXAS, N.A.


                                   By      /s/ J. Alan Alexander
                                        ----------------------------------------
                                   Name:   J. Alan Alexander
                                   Title:  Vice President





                      WESTLB AG, NEW YORK BRANCH


                      By       /s/ Salvatore Battinelli and Duncan M. Robertson
                               -------------------------------------------------
                      Name:    Salvatore Battinelli and Duncan M. Robertson
                      Title:   Managing Director
                               Director Credit Department

                      CREDIT AGRICOLE INDOSUEZ


                      By:      /s/ Larry Materi
                        --------------------------------------------------------
                      Name:    Larry Materi
                      Title:   Vice President

                      By:      /s/ Paul A. Dytrych
                        --------------------------------------------------------
                      Name:    Paul A. Dytrych
                      Title:   Vice President


                      SUNTRUST BANK


                      By:      /s/ Steven J. Newby
                         -------------------------------------------------------
                      Name:    Steven J. Newby
                      tle:     Director


                      ARAB BANKING CORPORATION (B.S.C.)


                      By:      /s/ Robert J. Ivosevich
                        --------------------------------------------------------
                      Name:    Robert J. Ivosevich
                      Title:   Deputy General Manager

                      By:      /s/ Barbara C. Sanderson
                        --------------------------------------------------------
                      Name:    Barbara C. Sanderson
                      Title:   VP Head of Credit

                      BANK OF CHINA, NEW YORK BRANCH


                      By:
                      Name:
                      Title:





                                   BANK OF OKLAHOMA, N.A.


                                   By:
                                   Name:
                                   Title:

                                   BNP PARIBAS, HOUSTON AGENCY


                                   By:      /s/ Larry Robinson
                                     -------------------------------------------
                                   Name:    Larry Robinson
                                   Title:   Vice President

                                   By:      /s/ Mark A. Cox
                                     -------------------------------------------
                                   Name:    Mark A. Cox
                                   Title:   Director


                                   DZ BANK AG DEUTSCHE
                                   ZENTRALGENOSSENSCHAFTSBANK, NEW YORK BRANCH


                                   By:      /s/ Mark Connelly
                                     -------------------------------------------
                                   Name:    Mark Connelly
                                   Title:   Senior V.P.

                                   By:      /s/ Richard W. Wilbert
                                     -------------------------------------------
                                   Name:    Richard W. Wilbert
                                   Title:   Vice President


                                   KBC BANK N.V.


                                   By:      /s/ Michael V. Curran
                                      ------------------------------------------
                                   Name:    Michael V. Curran
                                   Title:   First Vice President

                                   By:      /s/ Diane M. Grimmig
                                      ------------------------------------------
                                   Name:    Diane M. Grimmig
                                   Title:   First Vice President

                                   WACHOVIA BANK, N.A.


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





                                   MUZUHO CORPORATE BANK, LTD


                                   By:
                                   Name:
                                   Title:


                                   SUMITOMO MITSUI BANKING CORPORATION


                                   By       /s/ Leo E. Pagarigan
                                       -----------------------------------------
                                   Name:    Leo E. Pagarigan
                                   Title:   Senior Vice President



                                   COMMERCE BANK, N.A.


                                   By:      /s/ Dennis R. Block
                                       -----------------------------------------
                                   Name:    Dennis R. Block
                                   Title:   Senior Vice President



                                   ROYAL BANK OF SCOTLAND


                                   By:
                                   Name:
                                   Title:

                                   RZB FINANCE, LLC


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





                                   WORTHINGTON GENERATION, L.L.C.



                                   By:      /s/ William E. Hobbs
                                           -------------------------------------
                                   Name:    William E. Hobbs
                                   Title:   President



                                   WILLIAMS REFINING & MARKETING, L.L.C.



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



                                   WILLIAMS PETROLEUM SERVICES, LLC



                                   By:      /s/ Ralph A. Hill
                                           -------------------------------------
                                   Name:    Ralph A. Hill
                                   Title:   Senior Vice President


                                   WILLIAMS PETROLEUM PIPELINE SYSTEMS, INC.



                                   By:      /s/ Ralph A. Hill
                                            ------------------------------------
                                   Name:    Ralph A. Hill
                                   Title:   Senior Vice President


                                   WILLIAMS MID-SOUTH PIPELINES, LLC



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





                                   WILLIAMS GENERATION COMPANY-HAZLETON



                                   By:      /s/ Ralph A. Hill
                                            ------------------------------------
                                   Name:    Ralph A. Hill
                                   Title:   Vice President


                                   WILLIAMS OLEFINS, L.L.C.



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



                                   WILLIAMS OLEFINS FEEDSTOCK PIPELINES, L.L.C.



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


                                   WILLIAMS NATURAL GAS LIQUIDS, INC.



                                   By:      /s/ Alan S. Armstrong
                                            ------------------------------------
                                   Name:    Alan S. Armstrong
                                   Title:   Senior Vice President



                                   WILLIAMS MIDSTREAM NATURAL GAS LIQUIDS, INC.



                                   By:      /s/ Alan S. Armstrong
                                            ------------------------------------
                                   Name:    Alan S. Armstrong
                                   Title:   Senior Vice President









                                   WILLIAMS MERCHANT SERVICES COMPANY, INC.



                                   By:      /s/ William E. Hobbs
                                            ------------------------------------
                                   Name:    William E. Hobbs
                                   Title:   President



                                   WILLIAMS MEMPHIS TERMINAL, INC.



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



                                   WILLIAMS GULF COAST GATHERING COMPANY, LLC



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



                                   WILLIAMS GP, LLC



                                   By:     /s/ Don R. Wellendorf
                                           -------------------------------------
                                   Name:   Don R. Wellendorf
                                   Title:  President and Chief Executive Officer


                                   WILLIAMS GENERATING MEMPHIS, LLC



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










                                   WILLIAMS GAS PROCESSING - WAMSUTTER COMPANY.



                                   By:      /s/ Alan S. Armstrong
                                            ------------------------------------
                                   Name:    Alan S. Armstrong
                                   Title:   Senior Vice President



                                   WILLIAMS GAS PROCESSING COMPANY



                                   By:      /s/ Alan S. Armstrong
                                            ------------------------------------
                                   Name:    Alan S. Armstrong
                                   Title:   Senior Vice President


                                   WILLIAMS GAS PROCESSING - MID-CONTINENT
                                   REGION COMPANY



                                   By:      /s/ Alan S. Armstrong
                                            ------------------------------------
                                   Name:    Alan S. Armstrong
                                   Title:   Senior Vice President



                                   WILLIAMS FIELD SERVICES GROUP, INC.



                                   By:      /s/ Alan S. Armstrong
                                            ------------------------------------
                                   Name:    Alan S. Armstrong
                                   Title:   Senior Vice President

                                   WILLIAMS FIELD SERVICES COMPANY



                                   By:      /s/ Alan S. Armstrong
                                            ------------------------------------
                                   Name:    Alan S. Armstrong
                                   Title:   Senior Vice President







                                   WILLIAMS FIELD SERVICES - MATAGORDA OFFSHORE
                                   COMPANY, LLC



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



                                   WILLIAMS EXPRESS, INC. (DE)



                                   By:      /s/ Ralph A. Hill
                                            ------------------------------------
                                   Name:    Ralph A. Hill
                                   Title:   Chief Executive Officer


                                   WILLIAMS EXPRESS INC. (AK)



                                   By:      /s/ Ralph A. Hill
                                            ------------------------------------
                                   Name:    Ralph A. Hill
                                   Title:   Chief Executive Officer


                                   WILLIAMS ETHANOL SERVICES, INC.



                                   By:      /s/ Paul W. Nelson
                                            ------------------------------------
                                   Name:    Paul W. Nelson
                                   Title:   Treasurer


                                   WILLIAMS ENERGY SERVICES, LLC



                                   By:      /s/ Alan S. Armstrong
                                            ------------------------------------
                                   Name:    Alan S. Armstrong
                                   Title:   Senior Vice President











                                   WILLIAMS ENERGY MARKETING & TRADING COMPANY



                                   By:      /s/ William E. Hobbs
                                            ------------------------------------
                                   Name:    William E. Hobbs
                                   Title:   President



                                   WILLIAMS BIO-ENERGY, L.L.C.



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



                                   WILLIAMS ALASKA PIPELINE COMPANY, L.L.C.



                                   By:      /s/ Ralph A. Hill
                                            ------------------------------------
                                   Name:    Ralph A. Hill
                                   Title:   Senior Vice President



                                   WILLIAMS ALASKA PETROLEUM, INC.



                                   By:      /s/ Ralph A. Hill
                                            ------------------------------------
                                   Name:    Ralph A. Hill
                                   Title:   Chief Executive Officer



                                   WILLIAMS ALASKA AIR CARGO PROPERTIES, L.L.C.



                                   By:      /s/ Ralph A. Hill
                                            ------------------------------------
                                   Name:    Ralph A. Hill
                                   Title:   Chief Executive Officer













                                   WFS-OFFSHORE GATHERING COMPANY



                                   By:      /s/ Alan S. Armstrong
                                            ------------------------------------
                                   Name:    Alan S. Armstrong
                                   Title:   Senior Vice President


                                   WFS-NGL PIPELINE COMPANY, INC.



                                   By:      /s/ Alan S. Armstrong
                                            ------------------------------------
                                   Name:    Alan S. Armstrong
                                   Title:   Senior Vice President


                                   WFS-LIQUIDS COMPANY



                                   By:      /s/ Alan S. Armstrong
                                            ------------------------------------
                                   Name:    Alan S. Armstrong
                                   Title:   Senior Vice President


                                   WFS GATHERING COMPANY, L.L.C.



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


                                   WFS ENTERPRISES, INC.



                                   By:      /s/ Mary Jane Bittick
                                            ------------------------------------
                                   Name:    Mary Jane Bittick
                                   Title:   Treasurer











                                   WFS - PIPELINE COMPANY



                                   By:      /s/ Alan S. Armstrong
                                            ------------------------------------
                                   Name:    Alan S. Armstrong
                                   Title:   Senior Vice President




                                   WFS - OCS GATHERING CO.



                                   By:      /s/ Alan S. Armstrong
                                            ------------------------------------
                                   Name:    Alan S. Armstrong
                                   Title:   Senior Vice President


                                   NORTH PADRE ISLAND SPINDOWN, INC.



                                   By:      /s/ Alan S. Armstrong
                                            ------------------------------------
                                   Name:    Alan S. Armstrong
                                   Title:   Senior Vice President


                                   MEMPHIS GENERATION, L.L.C.



                                   By:      /s/ William E. Hobbs
                                            ------------------------------------
                                   Name:    William E. Hobbs
                                   Title:   President


                                   MAPL INVESTMENTS, INC.



                                   By:      /s/ Alan S. Armstrong
                                            ------------------------------------
                                   Name:    Alan S. Armstrong
                                   Title:   Senior Vice President













                                   MAPCO INC.



                                   By:      /s/ Alan S. Armstrong
                                            ------------------------------------
                                   Name:    Alan S. Armstrong
                                   Title:   Senior Vice President


                                   LONGHORN ENTERPRISES OF TEXAS, INC.



                                   By:      /s/ Ralph A. Hill
                                            ------------------------------------
                                   Name:    Ralph A. Hill
                                   Title:   Senior Vice President


                                   JUAREZ PIPELINE COMPANY



                                   By:      /s/ Alan S. Armstrong
                                            ------------------------------------
                                   Name:    Alan S. Armstrong
                                   Title:   Senior Vice President



                                   HI-BOL PIPELINE COMPANY



                                   By:      /s/ Alan S. Armstrong
                                            ------------------------------------
                                   Name:    Alan S. Armstrong
                                   Title:   Senior Vice President


                                   GOEBEL GATHERING COMPANY, L.L.C.



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





                                   GAS SUPPLY, L.L.C.



                                   By:      /s/ Ralph A. Hill
                                            ------------------------------------
                                   Name:    Ralph A. Hill
                                   Title:   Senior Vice President



                                   BLACK MARLIN PIPELINE COMPANY



                                   By:      /s/ Alan S. Armstrong
                                            ------------------------------------
                                   Name:    Alan S. Armstrong
                                   Title:   Senior Vice President






                                   SCHEDULE II
                                       TO
                           COLLATERAL TRUST AGREEMENT

                            FORM OF JOINDER AGREEMENT

                                JOINDER AGREEMENT
                          (name of joining subsidiary)

                               [_________, _____]

         [Joining Subsidiary], a [_________ corporation] (the "Subsidiary"),
hereby agrees with (a) CITIBANK, N.A., as collateral trustee for the benefit of
the holders of the Secured Obligations, (b) THE WILLIAMS COMPANIES, INC., a
Delaware corporation (the "Company") and (c) the other parties to the Security
Documents (as defined below), as follows:

         All capitalized terms used herein and not defined herein shall have the
meanings ascribed to such terms in the Amended and Restated Credit Agreement,
dated as of October 31, 2002, by and among The Williams Companies, Inc., the
various lenders as are or may become parties thereto; the Issuing Banks, and
Citicorp USA, Inc., as Agent and Collateral Agent (as further amended, modified,
supplemented, renewed, extended or restated from time to time, the "Credit
Agreement").

         In accordance with the terms of the [Security Agreement, Pledge
Agreement and Collateral Trust Agreement] (collectively, the "Security
Documents"), the Subsidiary hereby (a) [joins the Security Agreement as a party
thereto and assumes all the obligations of a Grantor (as defined in the Security
Agreement) under the Security Agreement], (b) [joins the Pledge Agreement as a
party thereto and assumes all the obligations of a Pledgor (as defined in the
Pledge Agreement) under the Pledge Agreement], (c) [joins the Collateral Trust
Agreement as a party thereto and assumes all the obligations of a Debtor (as
defined in the Collateral Trust Agreement) under the Collateral Trust
Agreement], (d) agrees to be bound by the provisions of the Security Documents
as if the Subsidiary had been an original party to the Security Documents, and
(e) confirms that, after joining the Security Documents as set forth above, the
representations and warranties set forth in each of the Credit Documents with
respect to the Subsidiary are true and correct in all material respects as of
the date of this Joinder Agreement.

         For purposes of notices under the Security Documents, the notice
address for the Subsidiary may be given to the Subsidiary by providing notice
addressed to [Subsidiary's Name] c/o The Williams Companies, Inc., in any manner
that notice is permitted to be given to the Company pursuant to the terms of the
Credit Agreement.

         [Schedule I and Schedule II to the Security Agreement are hereby
supplemented with the information set forth on Exhibit I to this Joinder
Agreement.]





         [Schedule I and Schedule II to the Pledge Agreement are hereby
supplemented with the information regarding the Subsidiary set forth on Exhibit
II to this Joinder Agreement.]

         THIS WRITTEN AGREEMENT AND THE CREDIT DOCUMENTS REPRESENT THE FINAL
AGREEMENT AMONG THE PARTIES AND MAY NOT BE CONTRADICTED BY EVIDENCE OF PRIOR,
CONTEMPORANEOUS, OR SUBSEQUENT ORAL AGREEMENTS OF THE PARTIES.

         THERE ARE NO UNWRITTEN ORAL AGREEMENTS AMONG THE PARTIES.

         IN WITNESS WHEREOF this Joinder Agreement is executed and delivered as
of the ___ day of ____________, _____.

                                     [Joining Subsidiary]



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