WILLIAMS COMPANIES INC
S-8, 1997-08-15
NATURAL GAS TRANSMISSION
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<PAGE>   1
    AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON AUGUST 15, 1997
                                                 REGISTRATION NO. 333-
================================================================================

                       SECURITIES AND EXCHANGE COMMISSION
                            WASHINGTON, D.C.  20549

                           -------------------------

                                    FORM S-8
            REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933

                           -------------------------

                          THE WILLIAMS COMPANIES, INC.
               (Exact name of issuer as specified in its charter)

                           -------------------------

           DELAWARE                                            73-0569878
(State or other jurisdiction of                             (I.R.S. Employer
incorporation or organization)                             Identification No.)

                              ONE WILLIAMS CENTER
                             TULSA, OKLAHOMA  74172
                                 (918) 588-2000
  (Address, including zip code, and telephone number, including area code, of
                   registrant's principal executive offices)

                           -------------------------

                   WILTEL COMMUNICATIONS, LLC INVESTMENT PLAN
                              (Full title of plan)

                           -------------------------

                            SHAWNA L. BARNARD, ESQ.
                          THE WILLIAMS COMPANIES, INC.
                              ONE WILLIAMS CENTER
                                TULSA, OK  74172
                                 (918) 588-2000
           (Name, address, and telephone number of agent for service)

                           -------------------------

                        CALCULATION OF REGISTRATION FEE

<TABLE>
<CAPTION>
===========================================================================================================
                                                    PROPOSED              PROPOSED
                                                    MAXIMUM               MAXIMUM
    TITLE OF                  AMOUNT                OFFERING              AGGREGATE             AMOUNT OF
 SECURITIES TO                TO BE                 PRICE                 OFFERING             REGISTRATION
 BE REGISTERED (1)          REGISTERED              PER UNIT              PRICE                    FEE     
- -----------------------------------------------------------------------------------------------------------
<S>                         <C>                     <C>                   <C>                  <C>
Common Stock,
  ($1 par value)            1,600,000 (2)           $46.35  (3)           $74,160,000(3)         $22,473 
===========================================================================================================
</TABLE>

(1)      In addition, pursuant to Rule 416(c) under the Securities Act of 1933,
         as amended, this registration statement also covers an indeterminate
         amount of interests to be offered or sold pursuant to the employee
         benefit plan described herein.

(2)      Together with accompanying preferred stock purchase rights as to which
         no separate fee is payable.

(3)      Estimated based on the reported New York Stock Exchange composite
         transactions closing price on August 11, 1997, solely for the purpose 
         of calculating the registration fee in accordance with Rule 457.

================================================================================
<PAGE>   2
                                    PART II

                 INFORMATION REQUIRED IN REGISTRATION STATEMENT


ITEM 3.  INCORPORATION OF DOCUMENTS BY REFERENCE.

       The following documents are hereby incorporated by reference and made a
part of this prospectus:

       (a)      The Company's Annual Report on Form 10-K for the fiscal year
                ended December 31, 1996.

       (b)      The Company's Quarterly Reports on Form 10-Q for the quarters
                ended March 31, 1997, and June 30, 1997.

       All documents subsequently filed by the Company and the Plan pursuant to
Section 13(a), 13(c), 14, or 15(d) of the 1934 Act prior to the termination of
the offering of the Shares shall be deemed to be incorporated by reference
herein and to be a part hereof from the date of the filing of such documents.
Any statement contained in a previously filed document incorporated by
reference herein shall be deemed to be modified or superseded for purposes
hereof to the extent that a statement contained herein modifies or supersedes
such statement, and any statement contained in any previously filed document or
contained herein shall be deemed modified or superseded to the extent that a
statement contained in a subsequently filed document which is incorporated by
reference herein modifies or supersedes such statement.  Any statement so
modified or superseded shall not be deemed to constitute a part hereof except
as so modified or superseded.

ITEM 5.  INTERESTS OF NAMED EXPERTS AND COUNSEL.

       The consolidated financial statements and schedule of the Company
appearing in the Company's Annual Report on Form 10-K for the year ended
December 31, 1996, have been audited by Ernst & Young LLP, independent
auditors, as set forth in their report thereon included therein and
incorporated herein by reference.  The financial statements and schedule
referred to above are incorporated herein by reference in reliance upon such
report given upon the authority of such firm as experts in auditing and
accounting.

       The reports of independent auditors relating to the audited consolidated
financial statements and schedules of the Company in any documents filed
pursuant to Sections 13(a), 13(c), 14, or 15(d) of the Exchange Act after the
date of this Prospectus and prior to the termination of the offering to the
extent covered by consents thereto filed with the Securities and Exchange
Commission will be incorporated by reference in reliance upon the authority of
such independent auditors as experts in auditing and accounting.

ITEM 6.  INDEMNIFICATION OF DIRECTORS AND OFFICERS.

       The Company is empowered by Section 145 of the General Corporation Law
of the State of Delaware, subject to the procedures and limitations stated
therein, to indemnify any person against expenses (including attorneys' fees),
judgments, fines, and amounts paid in settlement actually and reasonably
incurred by such person in connection with any threatened, pending, or
completed action, suit, or proceeding in which such person is made a party by
reason of such person being or having been a director, officer, employee, or
agent of the Company.  The statute provides that indemnification pursuant to
its provisions is not exclusive of other rights of indemnification to which a
person may be entitled under any bylaw, agreement, vote of stockholders or
disinterested directors, or otherwise.  The Bylaws of the Company provide for
indemnification by the Company of its directors and officers to the fullest
extent permitted by the General Corporation Law of the State of Delaware.  In
addition, the Company has entered into


                                     -2-
<PAGE>   3
indemnity agreements with its directors and certain officers providing for,
among other things, the indemnification of and the advancing of expenses to
such individuals to the fullest extent permitted by law, and, to the extent
insurance is maintained, for the continued coverage of such individuals.

       The Company maintains policies of insurance under which the directors
and officers of the Company are insured, within the limits and subject to the
limitations of the policies, against certain expenses in connection with the
defense of actions, suits, or proceedings and certain liabilities that might be
imposed as a result of such actions, suits, or proceedings, to which they are
parties by reason of being or having been such directors or officers.

ITEM 8.  EXHIBITS.

       *(4.1)   -- Restated Certificate of Incorporation of Williams (filed as
                   Exhibit 4(a) to Form 8-B Registration Statement, filed
                   August 20, 1987).

       *(4.2)   -- Certificate of Designation with respect to the $2.21
                   Cumulative Preferred Stock (filed as Exhibit 4.3 to the
                   Registration Statement on Form S-3, filed August 19, 1992).

       *(4.3)   -- Certificate of Increase of Authorized Number of Shares of
                   Series A Junior Participating Preferred Stock (filed as
                   Exhibit 3(c) to Form 10-K for the year ended December 31,
                   1988).

       *(4.4)   -- Certificate of Amendment of Restated Certificate of
                   Incorporation, dated May 20, 1994 (filed as Exhibit 3(d) to
                   Form 10-K for the fiscal year ended December 31, 1994).

       *(4.5)   -- Certificate of Designation with respect to the $3.50
                   Cumulative Convertible Preferred Stock (filed as Exhibit
                   3.1(c) to the Prospectus and Information Statement to
                   Amendment No. 2 to the Registration Statement on Form S-4,
                   filed Match 30, 1995).

       *(4.6)   -- Certificate of Increase of Authorized Number of Shares of
                   Series A Junior Participating Preferred Stock (filed as
                   Exhibit 3(f) to Form 10-K for the fiscal year ended December
                   31, 1995).

       *(4.7)   -- Rights Agreement, dated as of February 6, 1996, between
                   Williams and First Chicago Trust Company of New York (filed
                   as Exhibit 4 to Williams Form 8-K, filed January 24, 1996).

       *(4.8)   -- Bylaws of Williams, as amended (filed, as amended, as
                   Exhibit 3 to Form 10-Q for the quarter ended September 30,
                   1996).

       *(4.9)   -- Certificate of Amendment of Restated Certificate of
                   Incorporation, dated May 15, 1997 (filed as Exhibit 4.9 to
                   Form S-8 Registration Statement, filed June 26, 1997).

      *(4.10)   -- U.S. $1,000,000,000 Credit Agreement, dated as of December
                   20, 1996, among the Company and the lenders named therein
                   and Citibank, N.A., as agent (filed as Exhibit 4.3 to Form
                   10-K for the year ended December 31, 1996).

      *(4.11)   -- Form of Senior Debt Indenture between the Company and
                   Chemical Bank, Trustee, relating to the 10 1/4% Debentures,
                   due 2020; the 9 3/8% Debentures, due 2021; the 8 1/4% Notes,
                   due 1998; and Medium-Term Notes (8.50%-9.31%), due 1996
                   through 2001; the 7 1/2% Notes, due 1999, and the 8 7/8%
                   Debentures, due 2012 (filed as Exhibit 4.1 to Form S-3
                   Registration Statement No, 33-33294, filed February 2,
                   1990).



__________________________________

    * The exhibits have heretofore been filed with the Securities and Exchange
Commission as part of the filing indicated and are incorporated herein by
reference.

                                      -3-
<PAGE>   4
        (5.1)   -- Opinion and Consent of Shawna L. Barnard, Esq., Assistant
                   Secretary and Counsel for the Company, relating to the
                   validity of the securities.***

       (23.1)   -- Consent of Shawna L. Barnard (contained in Exhibit 5.1).

       (23.2)   -- Consent of Ernst & Young LLP.

       (24.1)   -- Power of Attorney.

       (24.2)   -- Certified copy of resolution authorizing signatures pursuant
                   to Power of Attorney.

         (99)   -- The WilTel Communications, LLC Investment Plan.


ITEM 9.  UNDERTAKINGS.

         1.     The Company hereby undertakes:

                (1)   To file, during any period in which offers or sales are
         being made, a post-effective amendment to this Registration Statement:

                      (i)      To include any prospectus required by section
                10(a)(3) of the Securities Act of 1933;

                      (ii)     To reflect in the Prospectus any facts or events
                arising after the effective date of the Registration Statement
                (or the most recent post-effective amendment thereof) which,
                individually or in the aggregate, represent a fundamental
                change in the information set forth in the Registration
                Statement; and

                      (iii)    To include any material information with respect
                to the plan of distribution not previously disclosed in the
                Registration Statement or any material change to such
                information in the Registration Statement;

         provided, however, that paragraphs 1(i) and 1(ii) above do not apply
         if the information required to be included in a post-effective
         amendment by these paragraphs is contained in periodic reports filed
         by the Company pursuant to Section 13 or Section 15(d) of the
         Securities Exchange Act of 1934 that are incorporated by reference in
         the Registration Statement.

                (2)   That, for the purpose of determining any liability under
         the Securities Act of 1933, each such post-effective amendment shall
         be deemed to be a new Registration Statement relating to the
         securities offered therein, and the offering of such securities at
         that time shall be deemed to be the initial bona fide offering
         thereof.

                (3)   To remove from registration by means of a post-effective
         amendment any of the securities being registered which remain unsold
         at the termination of the offering.

         2.     The Company hereby undertakes that, for purposes of determining
any liability under the Securities Act of 1933, each filing of the Company's
annual report pursuant to Section 13(a) or Section 15(d) of the Securities
Exchange Act of 1934 that is incorporated by reference in the Registration
Statement shall be deemed to be a new Registration Statement relating to the
securities offered





__________________________________

    *** The registrant hereby undertakes that it will submit the plan and any
amendment thereto to the Internal Revenue Service ("IRS") in a timely manner
and will make all changes required by the IRS in order to qualify the plan.

                                      -4-
<PAGE>   5
therein, and the offering of such securities at that time shall be deemed to be
the initial bona fide offering thereof.

         3.     Insofar as indemnification for liabilities arising under the
Securities Act of 1933 may be permitted to directors, officers, and controlling
persons of the Company pursuant to the foregoing provisions, or otherwise
(other than the insurance policies referred to above), the Company has been
advised that in the opinion of the Securities and Exchange Commission such
indemnification is against public policy as expressed in the Act and is,
therefore, unenforceable.  In the event a claim for indemnification against
such liabilities (other than the payment by the Company of expenses incurred or
paid by a director, officer, or controlling person of the Company in a
successful defense of any action, suit, or proceeding) is asserted against the
Company by such director, officer, or controlling person in connection with the
securities being registered, the Company will, unless in the opinion of its
counsel the matter has been settled by controlling precedent, submit to a court
of appropriate jurisdiction the question whether such indemnification by it is
against public policy as expressed in the Securities Act and will be governed
by the final adjudication of such issue.

                           -------------------------

                                   SIGNATURES

         The Registrant.  Pursuant to the requirements of the Securities Act of
1933, the registrant certifies that it has reasonable grounds to believe that
it meets all of the requirements for filing on Form S-8 and has duly caused
this registration statement to be signed on its behalf by the undersigned,
thereunto duly authorized in the City of Tulsa and State of Oklahoma on the
15th day of August, 1997.


                                        THE WILLIAMS COMPANIES, INC.
                                        (Registrant)



                                        By  /s/ SHAWNA L. BARNARD           
                                           -------------------------------------
                                           (Shawna L. Barnard, Attorney-in-fact)


       Pursuant to the requirements of the Securities Act of 1933, this
registration statement has been signed by the following persons in the
capacities indicated on August 15, 1997:


        SIGNATURE                   TITLE
        ---------                   -----

         *                          Chairman of the Board, President
- -----------------------------       and Chief Executive Officer) 
   Keith E. Bailey                  (Principal Executive Officer)
                                                                 

         *                          Senior Vice President
- -----------------------------       (Principal Financial Officer)           
   Jack D. McCarthy                                              


         *                          Controller
- -----------------------------       (Principal Accounting Officer)
    Gary R. Belitz                                                


         *                          Director
- -----------------------------                                  
     Glenn A. Cox





                                      -5-
<PAGE>   6

         *                          Director
- -----------------------------                                  
  Thomas H. Cruikshank


         *                          Director
- -----------------------------               
  Patricia L. Higgins         
                                    
                                    
         *                          Director
- -----------------------------               
     W. R. Howell             
                                    
                                    
         *                          Director
- -----------------------------               
  Robert J. LaFortune         
                                    
                                    
         *                          Director
- -----------------------------               
   James C. Lewis            
                                    
                                    
                                    Director
- -----------------------------               
  Jack A. MacAllister         
                                    
                                    
         *                          Director
- -----------------------------               
   Peter C. Meinig           
                                    
                                    
         *                          Director
- -----------------------------               
     Kay A. Orr              
                                    
                                    
         *                          Director
- -----------------------------               
  Gordon R. Parker           
                                    
                                    
         *                          Director
- -----------------------------                                  
  Joseph H. Williams


*By /s/ SHAWNA L. BARNARD        
    -------------------------------------
    (Shawna L. Barnard, Attorney-in-fact)


         The Plan.  Pursuant to the requirements of the Securities Act of 1933,
the trustees (or other persons who administer the Plan) have duly caused this
registration statement to be signed on its behalf by the undersigned, thereunto
duly authorized, in the City of Tulsa, State of Oklahoma, on this 15th day of
August, 1997.

                                      WILTEL COMMUNICATIONS, LLC INVESTMENT PLAN
                                      (Plan)


                                      By: /s/ JAMES R. HERBSTER              
                                          -----------------------------------
                                          James R. Herbster
                                          Member, Benefits Committee





                                      -6-
<PAGE>   7
                                 EXHIBIT INDEX


<TABLE>
<CAPTION>
     EXHIBIT NO.                        DESCRIPTION
     -----------                        -----------
     <S>           <C>
       *(4.1)   -- Restated Certificate of Incorporation of Williams (filed as
                   Exhibit 4(a) to Form 8-B Registration Statement, filed
                   August 20, 1987).

       *(4.2)   -- Certificate of Designation with respect to the $2.21
                   Cumulative Preferred Stock (filed as Exhibit 4.3 to the
                   Registration Statement on Form S-3, filed August 19, 1992).

       *(4.3)   -- Certificate of Increase of Authorized Number of Shares of
                   Series A Junior Participating Preferred Stock (filed as
                   Exhibit 3(c) to Form 10-K for the year ended December 31,
                   1988).

       *(4.4)   -- Certificate of Amendment of Restated Certificate of
                   Incorporation, dated May 20, 1994 (filed as Exhibit 3(d) to
                   Form 10-K for the fiscal year ended December 31, 1994).

       *(4.5)   -- Certificate of Designation with respect to the $3.50
                   Cumulative Convertible Preferred Stock (filed as Exhibit
                   3.1(c) to the Prospectus and Information Statement to
                   Amendment No. 2 to the Registration Statement on Form S-4,
                   filed Match 30, 1995).

       *(4.6)   -- Certificate of Increase of Authorized Number of Shares of
                   Series A Junior Participating Preferred Stock (filed as
                   Exhibit 3(f) to Form 10-K for the fiscal year ended December
                   31, 1995).

       *(4.7)   -- Rights Agreement, dated as of February 6, 1996, between
                   Williams and First Chicago Trust Company of New York (filed
                   as Exhibit 4 to Williams Form 8-K, filed January 24, 1996).

       *(4.8)   -- Bylaws of Williams, as amended (filed, as amended, as
                   Exhibit 3 to Form 10-Q for the quarter ended September 30,
                   1996).

       *(4.9)   -- Certificate of Amendment of Restated Certificate of
                   Incorporation, dated May 15, 1997. (filed as Exhibit 4.9 to
                   Form S-8 Registration Statement, filed June 26, 1997).

       *4.10)   -- U.S. $1,000,000,000 Credit Agreement, dated as of December
                   20, 1996, among the Company and the lenders named therein
                   and Citibank, N.A., as agent (filed as Exhibit 4.3 to Form
                   10-K for the year ended December 31, 1996).

      *(4.11)   -- Form of Senior Debt Indenture between the Company and
                   Chemical Bank, Trustee, relating to the 10 1/4% Debentures,
                   due 2020; the 9 3/8% Debentures, due 2021; the 8 1/4% Notes,
                   due 1998; and  Medium-Term Notes (8.50%-9.31%), due 1996
                   through 2001; the 7 1/2% Notes, due 1999, and the 8 7/8%
                   Debentures, due 2012 (filed as Exhibit 4.1 to Form S-3
                   Registration Statement No, 33-33294, filed February 2,
                   1990).

        (5.1)   -- Opinion and Consent of Shawna L. Barnard, Esq., Assistant
                   Secretary and Counsel for the Company, relating to the
                   validity of the securities.

       (23.1)   -- Consent of Shawna L. Barnard (contained in Exhibit 5.1).

       (23.2)   -- Consent of Ernst & Young LLP.

       (24.1)   -- Power of Attorney.

       (24.2)   -- Certified copy of resolution authorizing signatures pursuant
                   to Power of Attorney.

         (99)   -- The WilTel Communications, LLC Investment Plan.

</TABLE>






<PAGE>   1
                   [THE WILLIAMS COMPANIES, INC. LETTERHEAD]

                                                                     EXHIBIT 5.1


                                August 15, 1997



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

Dear Sirs:

        The Williams Companies, Inc., a Delaware corporation (the "Company")
contemplates filing a Registration Statement on Form S-8 under the Securities
Act of 1933, as amended (the "Act"), relating to the registration of Common
Stock of the Company, $1.00 par value (the "Common Stock") and associated
preferred stock purchase rights (the "Rights"), to be issued pursuant to the
terms of the WilTel Communications, LLC Investment Plan (the "Plan").

        As Counsel for the Company, I have examined the corporate proceedings
and such other legal matters as I deem relevant to the authorization and
issuance of the Common Stock and the Rights.  Based on such examination, it is
my opinion that when the Common Stock has been issued by the Company pursuant
to the terms of the Plan, the Common Stock and the Rights will be legally
issued, fully paid, and nonassessable.

        I hereby consent to the filing of this opinion with the Securities and
Exchange Commission as Exhibit 5.1 to the Registration Statement.


                                             Very truly yours,

                                             /s/ SHAWNA L. BARNARD   
                                             ------------------------
                                             Shawna L. Barnard






<PAGE>   1


                                                                    Exhibit 23.2



                        CONSENT OF INDEPENDENT AUDITORS


We consent to the reference to our firm in Item 5., "Interests of Named Experts
and Counsel," in the Registration Statement (form S-8) pertaining to the
registration of 1,600,000 shares of The Williams Companies, Inc. common stock to
be used in connection with the WilTel Communications, LLC Investment Plan and to
the incorporation by reference therein of our report dated February 10, 1997,
with respect to the consolidated financial statements and schedule of The
Williams Companies, Inc. included in its Annual Report (Form 10-K) for the year
ended December 31, 1996, filed with the Securities and Exchange Commission.



                                        ERNST & YOUNG LLP


Tulsa, Oklahoma
August 12, 1997






<PAGE>   1
                                                                    EXHIBIT 24.1

                          THE WILLIAMS COMPANIES, INC.

                               POWER OF ATTORNEY


                KNOW ALL MEN BY THESE PRESENTS that each of the undersigned
individuals, in their capacity as a director or officer, or both, as
hereinafter set forth below their signature, of THE WILLIAMS COMPANIES, INC., a
Delaware corporation ("Williams"), does hereby constitute and appoint WILLIAM
G. von GLAHN, DAVID M. HIGBEE and SHAWNA L. BARNARD their true and lawful
attorneys and each of them (with full power to act without the others) their
true and lawful attorneys for them and in their name and in their capacity as a
director or officer, or both, of Williams, as hereinafter set forth below their
signature, to sign a registration statement on Form S-8 for the registration
under the Securities Act of 1933, as amended, of one million six-hundred
thousand (1,600,000) shares of Common Stock of Williams issuable pursuant to
THE WILTEL COMMUNICATIONS LLC INVESTMENT PLAN, together with associated
Preferred Stock purchase rights and Plan interests, and any and all amendments
and post-effective amendments to said registration statement and any and all
instruments necessary or incidental in connection therewith; and

                THAT the undersigned Williams does hereby constitute and
appoint WILLIAM G. von GLAHN, DAVID M. HIGBEE and SHAWNA L. BARNARD its true
and lawful attorneys and each of them (with full power to act without the
others) its true and lawful attorney for it and in its name and on its behalf
to sign said registration statement and any and all amendments and
post-effective amendments thereto and any and all instruments necessary or
incidental in connection therewith.

                Each of said attorneys shall have full power of substitution
and resubstitution, and said attorneys or any of them or any substitute
appointed by any of them hereunder shall have full power and authority to do
and perform in the name and on behalf of each of the undersigned, in any and
all capacities, every act whatsoever requisite or necessary to be done in the
premises, as fully to all intents and purposes as each of the undersigned might
or could do in person, the undersigned hereby ratifying and approving the acts
of said attorneys or any of them or of any such substitute pursuant hereto.

                IN WITNESS WHEREOF, the undersigned have executed this
instrument, all as of the 27th day of July, 1997.


              *                                         *               
- -------------------------------          -------------------------------
         Keith E. Bailey                         Jack D. McCarthy
    Chairman of the Board,                     Senior Vice President
        President and                      (Principal Financial Officer)
     Chief Executive Officer
(Principal Executive Officer)


                                      *
                       --------------------------------
                                Gary R. Belitz
                                  Controller
                        (Principal Accounting Officer)




              *                                         *               
- -------------------------------          -------------------------------
        Glenn A. Cox                           Thomas H. Cruikshank
          Director                                   Director





<PAGE>   2
              *                                         *               
- -------------------------------          -------------------------------
     Patricia L. Higgins                           W. R. Howell
           Director                                  Director


              *                                         *               
- -------------------------------          -------------------------------
     Robert J. LaFortune                          James C. Lewis
           Director                                  Director


              *                                         *               
- -------------------------------          -------------------------------
     Jack A. MacAllister                         Peter C. Meinig
           Director                                  Director


              *                                         *               
- -------------------------------          -------------------------------
          Kay A. Orr                            Gordon R. Parker
           Director                                  Director


                                      *
                       -------------------------------
                              Joseph H. Williams
                                   Director



                                        THE WILLIAMS COMPANIES, INC.



                                        By /s/ JOHN C. BUMGARNER        
                                           -----------------------------
                                               John C. Bumgarner
ATTEST:                                      Senior Vice President


/s/ DAVID M. HIGBEE               
- ----------------------------------
       David M. Higbee
          Secretary






<PAGE>   1
                                                                    EXHIBIT 24.2

         I, the undersigned, SHAWNA L. BARNARD, Assistant Secretary of THE
WILLIAMS COMPANIES, INC., a Delaware company (hereinafter called the
"Company"), do hereby certify that at a meeting of the Board of Directors of
the Company, duly convened and held on July 27, 1997, at which a quorum of said
board was present and acting throughout, the following resolutions were duly
adopted:

                          RESOLVED that authorization be, and hereby is, given
         for the issuance and sale, from time to time, of up to one million
         six-hundred thousand (1,600,000) shares of the Company's authorized
         but unissued Common Stock, one dollar ($1.00) par value, and
         associated preferred stock purchase rights, under the terms and
         provisions of The WilTel Communications LLC Investment Plan (the
         "Plan").

                          RESOLVED that the officers of the Company be, and
         they hereby are, authorized to execute and file with the Securities
         and Exchange Commission under the Securities Act of 1933, as amended,
         a Registration Statement on Form S-8 or other Securities Act
         registration form as may be considered appropriate, and all amendments
         and supplements thereto, all required exhibits and documents in
         connection therewith, the prospectus contained therein and all
         amendments or supplements thereto with respect to not more than one
         million six-hundred thousand (1,600,000) shares of Common Stock, one
         dollar ($1.00) par value, and associated preferred stock purchase
         rights, of the Company to be purchased by employees in accordance with
         the terms and provisions of the Plan, and such indeterminate amount of
         plan interests constituting separate securities required to be
         registered, and to make all such payments and to do or cause to be
         done all other acts and things as, in their opinion or in the opinion
         of any of them, may be necessary or desirable and proper in order to
         effect such filing or in order that such Registration Statement and
         any such amendment or amendments may become effective and may remain
         in effect as long as shall be required.

                          RESOLVED that the form of power of attorney submitted
         to this meeting for use in connection with the execution and filing
         for and on behalf of the Company of the Registration Statement
         referred to in the immediately preceding resolution and any amendments
         or supplements thereto is hereby approved and the Chairman of the
         Board, the President or any Vice President of the Company be, and
         hereby is, authorized to execute said power of attorney in the form so
         presented by, for and on behalf of the Company.

                          RESOLVED that the officers of the Company be, and
         they hereby are,authorized and directed in the name and on behalf of
         the Company to take any and all action which they may deem necessary
         or advisable in order to effect the registration or qualification (or
         exemption therefore) of such securities for issue, offer, sale or
         trade under the Blue Sky or securities laws of any state of the United
         States of America or elsewhere, and in connection therewith to
         execute, acknowledge, verify, deliver, file or cause to be published
         any applications, reports, consents to service of process,
         appointments of attorney to receive service of process and other
         papers and instruments which may be required under such applications,
         reports, consents to service of process, appointments of attorney to
         receive service of process and other papers and instruments which may
         be required under such laws and to take any and all further action
         which they may deem necessary or advisable in order to maintain any
         such registration or qualification for as long as they deem necessary
         or as required by law.





<PAGE>   2
                          RESOLVED that the Chairman of the Board, the
         President, any Vice President, the Secretary or any Assistant
         Secretary of this Company be, and they hereby are, authorized to
         execute and deliver on behalf of this Company applications for the
         listing of not more than an additional one million six-hundred
         thousand (1,600,000) shares of Common Stock of the Company together
         with associated preferred stock purchase rights reserved for issuance
         under the terms of the Plan, on the New York Stock Exchange and the
         Pacific Stock Exchange and said officers are further authorized to
         take all such action and to file with such exchanges all such
         documents as may be necessary in order to accomplish the same.

                          RESOLVED that the Chairman of the Board, the
         President, any Vice President, the Secretary or any Assistant
         Secretary or any one or more of them be, and they hereby are,
         authorized and empowered to appear before the New York Stock Exchange
         and the Pacific Stock Exchange or any committees or any
         representatives of such exchanges with authority to present such
         applications for listing and to make such changes in such applications
         or in any amendments relative thereto and to furnish such information
         in connection therewith as may be necessary or advisable to conform
         with the requirements for the listing of such Common Stock on said New
         York Stock Exchange and Pacific Stock Exchange.

                          RESOLVED that First Chicago Trust Company of New
         York, transfer agent for the Company, as agent for the transfer of
         certificates of the Company's Common Stock, one dollar ($1.00) par
         value, and First Interstate Bank of California as co-transfer agent,
         be, and they hereby are, authorized (1) to record, countersign and
         deliver to First Chicago Trust Company of New York as registrar, or
         First Interstate Bank of California as co-registrar, certificates for
         shares of Common Stock, one dollar ($1.00) par value, of the Company
         to be issued as authorized under the terms of the Plan; (2) to deliver
         such certificates when countersigned by such registrar or
         co-registrar; and (3) from time to time to make transfers of
         certificates for such shares of Common Stock with the same authority
         and upon the terms and conditions as to such additional shares of
         Common Stock as are fully set forth in the resolutions previously
         adopted by the Board of Directors of the Company with respect to
         presently outstanding Common Stock of the Company.

                          RESOLVED that First Chicago Trust Company of New
         York, as registrar for registration of the Company's Common Stock, one
         dollar ($1.00) par value, and First Interstate Bank of California as
         co-registrar, be, and they hereby are, authorized and directed to
         record, when presented by First Chicago Trust Company of New York,
         transfer agent, or First Interstate Bank of California, co-transfer
         agent, of the Company's Common Stock, and register transfers of
         certificates for shares of the Company's Common Stock to be issued as
         authorized under the terms of the Plan with the same authority and
         upon the same terms and conditions as to such shares of Common Stock
         as are fully set forth in resolutions previously adopted by the Board
         of Directors of the Company with respect to the presently outstanding
         Common Stock of the Company.

                          RESOLVED that the officers of this Company be, and
         they hereby are,authorized to take all such further action and to
         execute and deliver all such further instruments and documents in the
         name and on behalf of the Company and under its corporate seal or
         otherwise and to pay such fees and expenses as shall be necessary,
         proper or advisable in order to fully carry out the intent and to
         accomplish the purposes of the foregoing resolutions.

         I further certify that the foregoing resolutions have not been
modified, revoked or rescinded and are in full force and effect.





<PAGE>   3
IN WITNESS WHEREOF, I have hereunto set my hand and affixed the seal of THE
WILLIAMS COMPANIES, INC., this 15th day of August, 1997.



                                            /s/ SHAWNA L. BARNARD        
                                           ------------------------------
                                           Shawna L. Barnard
                                           Assistant Secretary

(corporate seal)






<PAGE>   1
                                                                    EXHIBIT 99


                            SUMMARY PLAN DESCRIPTION

                                      FOR

                   WILTEL COMMUNICATIONS, LLC INVESTMENT PLAN
<PAGE>   2
 
                           WILTEL COMMUNICATIONS, LLC
                                INVESTMENT PLAN
 
ONE WILLIAMS CENTER                                        TULSA, OKLAHOMA 74172
 
                            TELEPHONE: 918-588-2000
 
                             ---------------------
 
                    PARTICIPATION IN THE INVESTMENT PLAN IS
                        OFFERED TO ELIGIBLE EMPLOYEES OF
              WILTEL COMMUNICATIONS, LLC, WHICH IS AFFILIATED WITH
                         THE WILLIAMS COMPANIES, INC.,
                     AND SUBSIDIARY OR AFFILIATED ENTITIES
                         OF WILTEL COMMUNICATIONS, LLC,
            WHICH MAY PARTICIPATE IN THE PLAN AS EMPLOYER COMPANIES.
 
                             ---------------------
 
                              DATED JUNE 23, 1997
<PAGE>   3
 
                                   PROSPECTUS
 
     This document constitutes a prospectus covering securities of The Williams
Companies, Inc. ("Williams") that have been registered under the Securities Act
of 1933, as amended. Contingent upon approval by the Board of Directors of
Williams, a registration statement (with all amendments thereto, referred to as
the "Registration Statement") with respect to WilTel Communications, LLC
Investment Plan (the "Plan") will be filed with the Securities and Exchange
Commission under the Securities Act. For further information with respect to
Williams, the Plan and the securities that are issuable under the terms of the
Plan, reference is made to the Registration Statement, including the exhibits
thereto.
 
     Williams will provide without charge to each person who participates in the
Plan, upon written or oral request of such person, a copy of the documents
incorporated by reference in Item 3 of Part II of the Registration Statement
(other than exhibits to such documents), which documents are incorporated by
reference into this sec.10(a) prospectus under the Securities Act. In addition,
Williams will also make available without charge copies of its annual report to
stockholders for the latest fiscal year, latest prospectus filed pursuant to
Rule 424(b) containing audited financial statements that are not incorporated by
reference from another filing and all reports, proxy statements and other
communications distributed to stockholders generally.
 
     Requests for these materials and any other information about the Plan
should be directed to the corporate Employee Benefits Department, The Williams
Companies, Inc., One Williams Center, Tulsa, Oklahoma 74172, (918) 588-2000.
                             ---------------------
 
                               TABLE OF CONTENTS
 
<TABLE>
<CAPTION>
                                        PAGE
                                        ----
<S>                                     <C>
General Information Regarding the
  Plan................................    2
Eligibility and Participation.........    2
Contributions Under the Plan..........    3
Accounts..............................    4
Investment of Contributions...........    5
Description of Investment Funds.......    6
Suspension of Contributions...........   10
Vesting of Contributions..............   11
</TABLE>
 
<TABLE>
<CAPTION>
                                        PAGE
                                        ----
<S>                                     <C>
Withdrawals During Employment.........   11
Plan Loans............................   12
Payment of Benefits...................   12
No Contract of Employment.............   13
Nonassignability of Interests.........   13
Administration of the Plan............   13
Federal Income Tax Effects............   14
</TABLE>
 
                                        1
<PAGE>   4
 
                         THE WILTEL COMMUNICATIONS, LLC
                                INVESTMENT PLAN
 
                     GENERAL INFORMATION REGARDING THE PLAN
 
     This Prospectus relates to interests in the WilTel Communications, LLC
Investment Plan ("Plan") and to shares of The Williams Companies, Inc.
("Williams") Common Stock, $1 par value, offered under the terms of the Plan.
Williams maintains its principal executive offices at One Williams Center,
Tulsa, Oklahoma 74172 (telephone (918) 588-2000). The term "Company," whenever
used herein, unless the context requires otherwise, shall include WilTel
Communications, LLC and each of its subsidiaries and affiliated entities which
adopts the Plan.
 
     Purposes of the Plan. The purposes of the Plan are to encourage employee
thrift by affording a systematic means of providing additional security for
retirement, to provide an opportunity for employees to become stockholders of
Williams and thus strengthen their direct interest in the Company's progress and
success and to assist the Company in attracting and retaining capable personnel.
 
     BEFORE ELECTING TO PARTICIPATE IN THE PLAN, EMPLOYEES SHOULD UNDERSTAND
THAT THE PLAN IMPOSES SUBSTANTIAL RESTRICTIONS ON THEIR ABILITY TO WITHDRAW OR
OTHERWISE ACCESS THEIR CONTRIBUTIONS ONCE MADE TO THE PLAN. IN THIS RESPECT, THE
PLAN IS NOT LIKE A CONVENTIONAL PASSBOOK SAVINGS ACCOUNT THAT PERMITS IMMEDIATE
ACCESS TO SAVINGS. IN ADDITION, WITHDRAWALS FROM THE PLAN MAY SUBJECT
PARTICIPANTS TO SUSPENSION FROM PARTICIPATION AS WELL AS FEDERAL INCOME TAX
PENALTIES. SEE "WITHDRAWALS DURING EMPLOYMENT" AND "FEDERAL INCOME TAX EFFECTS"
HEREIN.
 
     Modification and Termination. Williams expects the Plan to continue
indefinitely, but reserves the right to change or discontinue the Plan as its
relates to each employer company. The Plan may also be amended in certain
respects by the Benefits Committee. The Trust Agreement provides that a change
that affects the rights or duties of the Trustees may be made only with the
consent of the Trustees.
 
     Although the Plan was established with the intention that it would continue
indefinitely, circumstances not now foreseen, or beyond the Company's control,
may make it either impossible or inadvisable to continue the Plan or may require
the reduction, suspension or discontinuance of employer contributions to the
Plan.
 
     Upon complete discontinuance of employer contributions to, or termination
or partial termination of, the Plan, the rights of the participants affected
thereby shall become fully vested and nonforfeitable.
 
     Employee Retirement Income Security Act of 1974. The Plan is a
profit-sharing plan that is subject to the participation, vesting, fiduciary
responsibility, reporting and disclosure and claims procedure requirements of
the Employee Retirement Income Security Act of 1974 ("ERISA"). Because the Plan
provides benefits based on the employee's individual accounts rather than a
defined benefit based on compensation and years of service, the Plan is not
subject to the minimum funding requirements of ERISA. Benefits under the Plan
are not insured by the Pension Benefit Guaranty Corporation, and these
protective provisions are not otherwise provided under the Plan.
 
     The summary of the Plan set out herein is qualified in its entirety by
reference to the Plan. This summary does not include information on certain
additional restrictions that may be applicable to participation in the Plan by
individuals considered "insiders" for purposes of Section 16 of the Securities
Exchange Act of 1934.
 
                         ELIGIBILITY AND PARTICIPATION
 
     Any employee of the Company (other than an employee covered by a collective
bargaining agreement unless such agreement provides for coverage and certain
other employee classifications as defined by the Plan) is eligible to become a
participant in the Plan on the first day of the month following such employee's
employment date. An employee's participation is voluntary.
 
     To become a participant in the Plan, an eligible employee, by completing
the appropriate form, must authorize the deduction of contributions, as
specified below, from eligible compensation and agree to the terms
 
                                        2
<PAGE>   5
 
of the Plan. Enrollment is accomplished through use of a phone benefit system
("Phone Benefit System"). To use the Phone Benefit System, eligible employees
will choose a personal identification number. Once this number is activated, a
1-800 number can be used to enroll in the Plan. An employee who elects not to
participate in the Plan upon first becoming eligible, and a former participant
who again becomes eligible to participate, may become a participant as of the
first day of any month thereafter.
 
                          CONTRIBUTIONS UNDER THE PLAN
 
     In order to participate in the Plan, an eligible employee must elect to
make contributions to the Plan. Contributions may be in the form of aftertax
contributions, pretax contributions or a combination thereof, as hereinafter
defined. Contributions are made in amounts equal to the percentage of a
participant's compensation elected by the participant, subject to the
limitations discussed below.
 
     Aftertax contributions are comprised of amounts contributed to the Plan by
payroll deduction from the participant's net compensation after applicable
income taxes have been deducted, i.e., the amount contributed as an aftertax
contribution is subject to income taxes in the year in which such contribution
is made.
 
     Pretax contributions are comprised of amounts contributed to the Plan by
payroll deduction from the participant's gross compensation before applicable
income taxes have been deducted, i.e., the amount contributed as a pretax
contribution is not subject to income taxes in the year in which such
contribution is made.
 
     Eligible compensation for purposes of the Plan means the first $160,000 (or
such higher amount as may be permitted by the Internal Revenue Code of 1986, as
amended (the "Code")) of annual salary or wages paid to a participant while
covered by the Plan, as adjusted from time to time, including overtime,
commissions, sick pay, pretax contributions to the Plan, and salary reduction
amounts contributed to a cafeteria or flexible benefit plan, and bonuses (unless
specifically excluded under a bonus agreement), but excludes severance pay,
housing pay, cost of living pay, relocation pay and other taxable fringe
benefits and all other extraordinary forms of compensation.
 
     Contributions must be in whole percentages from 1 percent up to 14 percent
(10 percent for highly compensated participants as defined by the Code) of a
participant's compensation, subject to adjustment from time to time to comply
with provisions of the Code. Contributions may be designated as aftertax or
pretax contributions, or a combination thereof. A participant's pretax
contributions may be in an amount from 1 percent of compensation to no more than
the percentage of compensation established from time to time under the
provisions of the Plan in order to comply with the Code. The current maximum
level for pretax contributions is 10 percent. In addition, the pretax
contribution of a participant in any year cannot exceed the maximum allowed by
the Code ($9,500 for 1997), as adjusted from time to time by the Internal
Revenue Service to reflect changes in the cost of living.
 
     Subject to limitations on contributions that are required by the Code, the
Company will make Company matching contributions in an amount equal to 100
percent of each participant's pretax and aftertax contributions, but not in
excess of six percent of such participant's eligible compensation. In addition,
the Company in its sole discretion, may make supplemental contributions on
behalf of participants to satisfy nondiscrimination tests of the Code. Company
matching contributions may be made in cash or in Williams' Common Stock. All
Company matching contributions that are made in cash are invested in Williams'
Common Stock, subject to the right of a participant age 50 or over to direct
other investments of such contributions.
 
     Contribution Elections and Administration. By calling the Phone Benefit
System and following the procedures, a participant may increase or decrease the
amount such participant wishes to contribute to the Plan within the stated
limitations. A change will become effective on the first day of the month
designated for the change, provided the change has been entered into the Phone
Benefit System by the appropriate deadline. The deadline is 2:00 p.m. Central
time on the 22nd day of the month. An election to contribute at a specified
level is deemed to be a continuing election until changed by the participant.
 
                                        3
<PAGE>   6
 
     All pretax, aftertax and Company matching contributions are delivered to
the Trustee as soon as practicable but no later than the close of the month
succeeding the month for which the contributions are made and are credited to
the respective accounts of the participants.
 
     Forfeitures and Return of Contributions. Except for contributions made
under a mistake of fact or for which a deduction under the Code is disallowed,
all Company contributions generally are not recoverable by the Company, nor can
such contributions, or income thereon, be used for, or diverted to, any purpose
other than for the exclusive benefit of the participants and their beneficiaries
under the Plan and the payment of certain expenses of administering the Plan.
Forfeitures under the Plan that are not used to pay expenses of the Plan are
applied to reduce employer contributions.
 
     Rollover Contributions. The Plan will accept qualified cash rollovers from
qualified retirement plans of previous employers subject to the approval of the
Plan Administrator.
 
     Form of Contributions; Limitations. Both the Plan and certain federal laws
set limits on the amount of contributions participants and the Company can make
to the Plan. The Plan Administrator may reduce the total amount of contributions
a participant may make under certain circumstances. In addition, the total
amount of a participant's pretax contributions each year cannot be more than
$9,500 for 1997 (or such higher amount as may be permitted under Internal
Revenue Service regulations). Also, total additions to the accounts of a
participant for any year cannot exceed the lesser of 25% of his total
compensation for the year or $30,000 (or such higher amount as may be permitted
under Internal Revenue Service regulations). "Total additions" include all
contributions by a participant and a participant's share of employer
contributions. Other limits also exist. If these limits are exceeded, the amount
of contributions a participant or the Company can make may be less than is
described above.
 
     Participant Statements. Individual statements of account are mailed to
participants on a quarterly basis. These statements contain, among other things,
information concerning contributions, earnings and appreciation, account
balances and withdrawals from aftertax, pretax and employer contribution
accounts. Using the Phone Benefit System, participants can access their account
at any time to receive information regarding, among other things, account
balances, how the account is invested, loans and loan balances.
 
     Reporting and Disclosure. The Trustees and the administrators of the Plan
must comply with all applicable reporting and disclosure requirements of ERISA.
Plan records that pertain solely to a particular participant are available for
examination by such participant.
 
                                    ACCOUNTS
 
     Various accounts are maintained for each Participant to reflect the funds
held on behalf of the Participant in the Plan.
 
     The Pretax Account contains a Participant's pretax contributions to this
Plan and the Aftertax Account contains a Participant's after-tax contributions
to this Plan.
 
     The Employer Matching Contribution Account contains the matching
contributions to this Plan that must remain invested in Williams' Common Stock
until a Participant attains age 50.
 
     The Qualified Nonelective Employer Contribution ("QNEC") Account contains
employer contributions which are not based on matching contributions. These
contributions are not normally made, but may be made in the future to satisfy
discrimination tests.
 
     The Rollover Contribution Account contains contributions from other
qualified plans which have been rolled into this Plan.
 
     Each month, such accounts are credited with contributions and the
participant's proportionate share of any gains and earnings and are debited with
the amount of any withdrawals and a proportionate share of any losses, expenses
and other charges.
 
                                        4
<PAGE>   7
 
                          INVESTMENT OF CONTRIBUTIONS
 
     A participant may direct the investment of such participant's future
contributions in any one or more of the investment funds ("Funds") listed below,
provided the amount invested in each is in multiples of 1 percent. All employer
matching contributions are made to Fund 9.
 
     Effective August 1, 1997, the following Funds are available:
 
     Fund 1:  Morley Capital Stable Value -- a collective trust fund seeking to
              provide consistent returns over time with no fluctuation in
              principal values, through investing primarily in high quality
              investment products issued by leading life insurance companies,
              banks or other financial institutions.
 
     Fund 2:  Invesco Total Return -- a diversified mutual fund seeking to
              achieve a high total return on investments through capital
              appreciation and current income by investing in a combination of
              equity and fixed income securities.
 
     Fund 3:  Fidelity Puritan -- a diversified mutual fund seeking to obtain a
              high level of income, consistent with the preservation of capital.
              The fund invests in high-yielding domestic and foreign securities
              in a variety of companies and industries.
 
     Fund 4:  Vanguard Index 500 -- a diversified mutual fund seeking to match
              the investment performance of the Standard & Poors 500 Composite
              Stock Price Index, an index emphasizing large-capitalization
              stocks.
 
     Fund 5:  Fidelity Magellan -- a diversified mutual fund seeking long-term
              capital appreciation through investments in securities of
              domestic, foreign, and multinational issuers.
 
     Fund 6:  Fidelity Contrafund -- a diversified mutual fund seeking capital
              appreciation by investing in companies believed to be undervalued
              or out of favor.
 
     Fund 7:  Putnam Voyager A -- a diversified mutual fund investing in common
              stocks with greater than average potential for capital
              appreciation, without considering dividend and interest income.
 
     Fund 8:  Templeton Growth 1 -- a diversified mutual fund seeking long-term
              capital growth through a flexible policy of investing in stocks
              and debt obligations of companies and governments of any nation.
 
     Fund 9:  Common Stock of Williams. Common Stock of Williams may be
              purchased by the Trustee in the open market or may be purchased
              directly from Williams. If purchased from Williams, the sales
              price is the lesser of: (i) the prevailing price of Williams'
              Common Stock as reported by the New York Stock Exchange Composite
              Tape when the Common Stock is acquired by the Plan, or (ii) the
              average of the closing prices of Williams' Common Stock as
              reported by the Composite Tape for the 20 consecutive trading days
              immediately preceding the date the stock is purchased.
 
     Fund 10: Self-directed account allowing the participant to invest at such
              participant's discretion within certain limitations. The
              self-directed fund allows participants to direct the investment of
              their accounts over which they have investment discretion in any
              manner they choose, subject to certain limitations. The Plan does
              not permit investments in any vehicle that is not readily
              tradable, including limited partnerships, real estate, art, etc.
              In addition, the minimum amount that may be invested initially in
              this option is $1,000. All transactions are required to be through
              a brokerage firm designated by the Plan administrators.
 
     A participant may, under prescribed conditions, change existing investment
directions daily. A participant may direct the conversion of past employee
contributions, and rollover contributions in any investment Fund or Funds to any
other investment Fund or Funds with certain exceptions. Such allocation between
Funds must be in whole percentages. In addition, a participant who is at least
50 years of age may convert his Employer Matching Contribution Account and his
QNEC Account, if any, from Fund 9 to the other investment Funds.
 
                                        5
<PAGE>   8
 
     Contributions are forwarded by the Company to the Trustee pursuant to
directions to invest in the various investment Funds provided under the Plan.
Income generated from investments under a particular Fund is reinvested in the
same Fund.
 
     A participant acquires an interest in a separate unsegregated fund in which
such participant's accounts are invested. A participant does not, until all or
part of such participant's interest in the Plan is distributed, acquire any
direct ownership interest in the securities held in any Fund. Thus, securities
purchased under the Plan are held in the name of the Trustee. Voting rights are
exercised by the Trustee in accordance with instructions given by the
participant with regard to Williams' Common Stock held in Fund 9.
 
     A participant pays no fees with respect to the purchase, exchange or
redemption of shares in Funds 1, 2, 3, 4, 5, 6 and 7 and the fund manager has
waived such fees for Fund 8. Transaction fees, such as brokerage commissions,
associated with activity in Funds 9 and 10 will be charged to the individual
accounts of the participants generating such activity. Management fees and
expenses associated with participation in the mutual funds or investment
companies are charged directly against the respective Funds and are reflected in
the following performance information. The annual maintenance fee charged to
participants who utilize the self-directed Fund 10 option is $100 for active
participants and $150 for terminated and retired participants.
 
     Neither the Company, the Trustee nor the fund managers guarantee the
contributions made to the various Funds from loss or decline in value.
Furthermore, the Fund managers cannot guarantee that their objectives with
respect to the respective Funds can be met. The Company generally does not
retain any beneficial or reversionary interest in any contributions to the Plan
or in any of the assets, proceeds, earnings or increments thereof, and all
Company obligations, except for supplying certain information to the Trustee,
cease upon the payment of contributions to the Trustees.
 
     A summary of quarterly performance information for all Funds is mailed with
the quarterly statements of account to each participant's address on file with
the Plan Administrator. Prior to or upon an election to invest in Funds 2
through 8, participants will be provided a prospectus pertaining to each Fund in
which contributions are invested. Participants contemplating such investments
can obtain a copy of such prospectuses from Williams' Corporate Employee
Benefits Department, One Williams Center, Tulsa, Oklahoma 74172. It is
recommended that each participant with an investment in such Funds or who
contemplates making such an investment, review the prospectuses for the
respective Funds. Each participant will receive annually a copy of Williams'
Annual Report to Stockholders.
 
                        DESCRIPTION OF INVESTMENT FUNDS
 
     The general Fund description and historical performance information set
forth in the following section, with the exception of Fund 9, has been extracted
from prospectuses or from advertised yields and total returns published by the
respective Funds and are qualified in their entirety by reference to such
sources. There can be no assurances that any of the Funds' respective investment
objectives will be achieved. Furthermore, a specific Fund's objective may be
changed without participant approval.
 
     It should be emphasized that historical performance may not be indicative
of future performance. Investment returns and principal will fluctuate. Also,
since the historical performance information is provided by the different funds
and are unrelated to each other, the formatting for such information is
different. Such differences should be taken into consideration in making
comparisons of investment performance.
 
FUND 1: MORLEY CAPITAL STABLE VALUE
 
     The Stable Value Fund is a collective trust fund managed by Union Bond &
Trust Company. The Stable Value Fund invests primarily in investment contracts
issued by insurance companies and other financial institutions. The investment
objective of the Stable Value Fund is to invest in a diversified pool of stable
value assets to provide a consistent rate of return, while preserving capital
and minimizing risk. The return of the Fund is a blend of all the rates of the
various investments purchased by the Fund.
 
                                        6
<PAGE>   9
 
     Three-year investment results for Fund 1 are as follows:
 
<TABLE>
<CAPTION>
 YEAR ENDED                                                  TOTAL
DECEMBER 31,                                                 RETURN
- ------------                                                 ------
<S>                                                          <C>
   1996.................................................     6.25%
   1995.................................................     6.73%
   1994.................................................     6.09%
</TABLE>
 
FUND 2: INVESCO TOTAL RETURN FUND --
 
     Invesco Total Return Fund. Based on information contained in the fund
prospectus, dated January 1, 1997, the Invesco Total Return Fund is a separate
portfolio in the INVESCO Value Trust, an open-end management investment company
("mutual fund"). The Invesco Total Return Fund seeks to achieve a high total
return on investment through capital appreciation and current income by
investing in a combination of equity securities and fixed income securities.
Equity securities will generally be those issued by companies listed on a
national securities exchange and which usually pay regular dividends. Fixed
income securities will generally consist of obligations of the United States
Government and government agencies and corporate debt obligations which are
rated by Moody's or Standard & Poor's in their four highest ratings for
corporate obligations, or, if not rated, in the fund's opinion have investment
characteristics similar to companies receiving such ratings. Typically, the
Invesco Total Return Fund will maintain a minimum investment in equities of 30
percent of total assets, and a 30 percent minimum will be invested in fixed
income securities. The remaining 40 percent of the portfolio will vary in asset
allocation according to the fund's assessment of business, economic and market
conditions.
 
     Three-year investment results for Fund 2 are as follows:
 
<TABLE>
<CAPTION>
 YEAR ENDED                                                 TOTAL
DECEMBER 31,                                                RETURN
- ------------                                                ------
<S>                                                         <C>
   1996................................................     13.07%
   1995................................................     28.64%
   1994................................................      2.52%
</TABLE>
 
FUND 3: FIDELITY PURITAN FUND --
 
     Based on information contained in the fund prospectus, dated September 25,
1996, the Fidelity Puritan Fund is a diversified fund of Fidelity Puritan Trust,
an open-end management investment company ("mutual fund"). The Fund is managed
by Fidelity Management & Research (FMR). The Fund seeks a high level of income,
consistent with preservation of capital, by investing in a broadly diversified
portfolio of high-yielding securities, such as common stocks, preferred stocks,
and bonds. Capital appreciation is also an objective of the fund. The Fund has
the flexibility to pursue its objective through any type or quality of domestic
and foreign securities. FMR varies the proportions invested in each type of
security based on its interpretation of economic conditions and underlying
security values. Equity securities may include common stocks, preferred stocks,
convertible securities, and warrants. When FMR's outlook is neutral, it will
invest approximately 60% of the fund's assets in stocks and the remainder in
bonds. The Fund intends to limit its investments in lower than Baa-quality bonds
to less than 35% of the total bond component. FMR may use various investment
techniques to hedge a portion of the Fund's risks. These techniques may involve
derivative transactions, such as buying and selling options and futures
contracts, entering into currency exchange contracts or swap agreements,
purchasing indexed securities, and selling securities short.
 
     Three-year investment results for Fund 3 are as follows:
 
<TABLE>
<CAPTION>
 YEAR ENDED                                                 TOTAL
DECEMBER 31,                                                RETURN
- ------------                                                ------
<S>                                                         <C>
   1996................................................     15.15%
   1995................................................     21.46%
   1994................................................      1.78%
</TABLE>
 
                                        7
<PAGE>   10
 
FUND 4: VANGUARD INDEX 500 --
 
     Based on information contained in the fund prospectus, dated March 28,
1997, the Vanguard Index Trust -- 500 Portfolio is one of six portfolios in the
Vanguard Index Trust, an open-end diversified investment company designed as an
"index" fund. The Portfolio is not managed according to traditional methods of
"active" investment management, which involve the buying and selling of
securities based upon economic, financial and market analysis and investment
judgment. Instead, the Portfolio utilizes a "passive" or "indexing" investment
approach, which attempts to duplicate the investment performance of the S&P 500
Index by investing in all 500 stocks in approximately the same proportions as
they are represented in the Index. The S&P 500 Index is an unmanaged and widely
accepted benchmark of the stock market's performance which consists of 500
stocks chosen for market size, liquidity, and industry group representation. As
of April 30, 1997, the industry group representation included Industrials at
79.8%, Utilities at 3.3%, Financials at 15.4% and Transportation at 1.5%.
Although the Portfolio is substantially fully invested in common stocks,
investment in fixed income securities can be made temporarily for uncommitted
cash balances or to maintain liquidity to meet shareholder redemptions. The
Portfolio can utilize stock futures contracts, options, warrants, convertible
securities and swap agreements to a limited extent.
 
     Three-year investment results for Fund 4 are as follows:
 
<TABLE>
<CAPTION>
 YEAR ENDED                                                 TOTAL
DECEMBER 31,                                                RETURN
- ------------                                                ------
<S>                                                         <C>
   1996................................................     20.96%
   1995................................................     35.79%
   1994................................................     (-.17%)
</TABLE>
 
FUND 5: FIDELITY MAGELLAN FUND --
 
     Based on information contained in the fund prospectus, dated May 22, 1996,
the Fidelity Magellan Fund is an open-end management investment company ("mutual
fund"). The Fund seeks capital appreciation by investing in securities of
domestic, foreign and multinational issuers. The Fund is managed by Fidelity
Management & Research (FMR). The Fund normally invests primarily in common
stocks and securities convertible into common stock. The Fund may invest a
portion of its assets in debt securities of all types, qualities, and maturities
issued by domestic and foreign companies. No more than 40% of the fund's assets
may be invested in companies operating exclusively in any one foreign country.
No emphasis is placed on dividend income except when FMR believes this income
will positively affect the price of the security. In selecting domestic
securities, FMR considers corporations of all sizes, industries, and
geographical markets. In selecting foreign securities, FMR will favor larger,
well-known companies, but will also consider smaller firms. Investments in
foreign securities may involve risks in addition to those of U.S. investments,
including political and economic risk, as well as exposure to currency
fluctuation. FMR may use various investment techniques to hedge a portion of the
Fund's risks due to exposure to security prices, interest rates, currency
exchange rates, commodity prices, or other factors that affect security values.
These techniques may involve derivative transactions, such as buying and selling
options and futures contracts, entering into currency exchange contracts or swap
agreements, and purchasing indexed securities.
 
     Three-year investment results for Fund 5 are as follows:
 
<TABLE>
<CAPTION>
 YEAR ENDED                                                TOTAL
DECEMBER 31,                                               RETURN
- ------------                                              -------
<S>                                                        <C>
   1996...............................................     11.69%
   1995...............................................     36.82%
   1994...............................................    (-1.81%)
</TABLE>
 
FUND 6: FIDELITY CONTRAFUND --
 
     Based on information contained in the fund prospectus, dated February 20,
1996, the Fidelity Contrafund is an open-end management investment company
("mutual fund"). The Fund is managed by Fidelity
 
                                        8
<PAGE>   11
 
Management & Research (FMR). The Fund seeks capital appreciation by investing
mainly in equity securities of companies that FMR believes to be undervalued due
to an overly pessimistic appraisal by the market. The Fund usually invests
primarily in common stock and securities convertible into common stock, but has
the flexibility to invest in any type of security that may produce capital
appreciation. The Fund's strategy is to invest in small to medium-sized
companies, which are generally considered to carry more risk than larger
companies. FMR looks for companies with the following characteristics: 1)
unpopular, but with improving fundamentals, such as a change in management, a
new product line, or an improved balance sheet, 2) temporarily out of favor due
to a short-term or one-time event, 3) undervalued compared to other companies in
the same industry. If FMR believes that market conditions warrant a more
conservative approach, investments may be made in investment-grade fixed-income
obligations of all types and U.S. government obligations. FMR may use various
investment techniques to hedge a portion of the Fund's risks due to exposure to
security prices, interest rates, currency exchange rates, commodity prices, or
other factors that affect security values. These techniques may involve
derivative transactions, such as buying and selling options and futures
contracts, entering into currency exchange contracts or swap agreements and
purchasing indexed securities.
 
     Three-year investment results for Fund 6 are as follows:
 
<TABLE>
<CAPTION>
 YEAR ENDED                                                TOTAL
DECEMBER 31,                                               RETURN
- ------------                                            ------------
<S>          <C>                                        <C>
   1996...............................................     21.94%
   1995...............................................     36.28%
   1994...............................................    (-1.12%)
</TABLE>
 
FUND 7: PUTNAM VOYAGER FUND --
 
     Based on information contained in the fund prospectus, dated November 30,
1996, the Putnam Voyager Fund is an open-end management investment company
("mutual fund"). The Putnam Voyager Fund invests primarily in common stocks of
companies which Putnam Investment Management, Inc., the Fund's investment
manager, believes have potential for capital appreciation which is significantly
greater than that of the market averages. The Fund's investments may include
widely-traded common stocks of larger companies as well as common stocks of
smaller, less well-known issuers. The Fund generally invests a portion of its
assets in the securities of small to medium-sized companies with equity market
capitalizations of less than $3 billion. Such companies may present greater
growth opportunities for capital appreciation because of high potential earnings
growth, but may also involve greater risk. At times Putnam Management may
increase the portion of its assets invested in convertible bonds, convertible
preferred stocks, warrants, preferred stocks and debt securities if Putnam
Management believes they would help achieve the Fund's objective. The Fund may
also hold a portion of its assets in cash or money market instruments. The Fund
may invest up to 20% of its assets in foreign securities. The Fund may buy and
sell stock index futures contracts and may buy options on
index futures and on stock indices for hedging purposes.
 
     Three-year investment results for Fund 7 are as follows:
 
<TABLE>
<CAPTION>
 YEAR ENDED                                                 TOTAL
DECEMBER 31,                                                RETURN
- ------------                                             ------------
<S>          <C>                                         <C>
   1996................................................     12.80%
   1995................................................     40.15%
   1994................................................       .44%
</TABLE>
 
FUND 8: TEMPLETON GROWTH FUND 1 --
 
     The Templeton Growth Fund 1. Based on information contained in the fund
prospectus, dated January 1, 1997, the Templeton Growth Fund 1 is a diversified,
open-end, management investment company ("mutual fund") whose objective is
long-term capital growth sought through a flexible policy of investing in stocks
and debt obligations of companies and governments of any nation. Any income
realized will be incidental. Although the Templeton Growth Fund 1 generally
invests in common stock, it may also invest in preferred
 
                                        9
<PAGE>   12
 
stocks and certain debt securities, rated or unrated, such as convertible bonds
and bonds selling at a discount. Whenever, in the judgment of the investment
manager, market or economic conditions warrant, this fund may, for temporary
defensive purposes, invest without limit in U.S. Government securities, bank
time deposits in the currency of any major nation and commercial paper meeting
certain quality ratings and purchase from banks or broker-dealers Canadian or
U.S. Government securities with a simultaneous agreement by the seller to
repurchase them within no more than seven days at the original purchase price
plus accrued interest.
 
     The Templeton Growth Fund 1 may invest no more than 5% of its total assets
in securities issued by any one company or government, exclusive of U.S.
Government securities. Although the Templeton Growth Fund 1 may invest up to 25%
of its assets in a single industry, it has no present intention of doing so. It
may not invest more than 5% of its assets in warrants (exclusive of warrants
acquired in units or attached to securities) nor more than 10% of its assets in
securities with a limited trading market. The Templeton Growth Fund 1 invests
for long-term growth of capital and does not intend to place emphasis upon
short-term trading profits. Accordingly, the fund expects to have a portfolio
turnover rate of less than 50%. The Templeton Growth Fund 1 may also purchase
and sell stock index futures contracts up to an aggregate amount not exceeding
20% of its total assets. In addition, in order to increase its return or to
hedge all or a portion of its portfolio investments, the Templeton Growth Fund 1
may purchase and sell put and call options on securities indices.
 
     Three-year investment results for Fund 8 are as follows:
 
<TABLE>
<CAPTION>
 YEAR ENDED                                                 TOTAL
DECEMBER 31,                                                RETURN
- ------------                                             ------------
<S>          <C>                                         <C>
   1996................................................      20.6%
   1995................................................     19.83%
   1994................................................       .82%
</TABLE>
 
FUND 9: THE WILLIAMS COMPANIES INC. COMMON STOCK --
 
     This fund is maintained to invest in shares of common stock of Williams.
Although it is the objective of Williams to increase shareholder value, the
stock has declined in market price from time to time.
 
     Three-year investment results for The Williams Companies Common Stock are
as follows:
 
<TABLE>
<CAPTION>
 YEAR ENDED                                                 TOTAL
DECEMBER 31,                                                RETURN
- ------------                                             ------------
<S>          <C>                                         <C>
   1996................................................     31.79%
   1995................................................      79.8%
   1994................................................      6.22%
</TABLE>
 
     THE HISTORIC TRADING PRICE OF THE COMMON STOCK OF WILLIAMS IS NOT
     NECESSARILY INDICATIVE OF THE FUTURE PERFORMANCE OR TRADING PRICE OF THE
     COMMON STOCK.
 
                          SUSPENSION OF CONTRIBUTIONS
 
     As of the first day of any month, a participant may suspend making
contributions by calling the Phone Benefit System and following the instructions
given. Such participant may later elect to resume making contributions as of the
first day of any month by re-enrolling. During any period in which participant
contributions are suspended, employer matching contributions as to such
participant are also suspended. Suspended contributions may not be made up.
In-Service withdrawals and Hardship withdrawals from the Plan or The Williams
Companies, Inc. Investment Plus Plan will cause an automatic suspension of
contributions to this Plan. The suspension period is 3 months for an In-Service
withdrawal from either plan and 6 months for a Hardship withdrawal from either
plan.
 
                                       10
<PAGE>   13
 
                            VESTING OF CONTRIBUTIONS
 
     All aftertax, pretax and rollover contributions are immediately 100 percent
vested. In addition, a participant is fully vested in his QNEC Account, if any.
Employer contributions credited to the Employer Matching Contribution Account of
a participant vest in full in the event of (i) retirement (as defined by the
Plan); (ii) termination of employment due to disability (as defined in the
Plan), death, permanent layoff or a reduction in force (as defined in the Plan);
or (iii) complete discontinuance of employer contributions to, or termination or
partial termination of, the Plan.
 
     Otherwise, employer contributions vest in accordance with the following
schedule based upon years of vesting service:
 
<TABLE>
<CAPTION>
YEARS OF                                            PERCENTAGE
SERVICE                                               VESTED
- -------                                             ----------
<S>                                                 <C>
Less than 1.......................................       0%
1.................................................      20%
2.................................................      40%
3.................................................      60%
4.................................................      80%
5 or more.........................................     100%
</TABLE>
 
     Years of Service are based on calendar years in which a participant
completes 1,000 or more hours of service for the Company. In addition, years of
service includes the years of service credited on July 31, 1997 under The
Williams Companies, Inc. Investment Plus Plan and the Northern Telecom Inc.
Long-Term Investment Plan.
 
                         WITHDRAWALS DURING EMPLOYMENT
 
     A participant may withdraw certain amounts from Plan accounts prior to such
participant's retirement or termination of employment only as described in this
section. An eligible participant may request a withdrawal in cash, or in
Williams' Common Stock. All withdrawals shall be processed as soon as
practicable after a participant's accounts have been valued. The amounts
available for withdrawal may be subject to limitations in the case of a
participant who has an outstanding loan under the Plan. Before requesting a
withdrawal from the Plan, a participant should review the section of this
Descriptive Memorandum entitled "Federal Income Tax Effects" and understand the
tax implications of a withdrawal.
 
PARTIAL WITHDRAWALS
 
     A "Partial Withdrawal" request may be made by a Participant at any time
after participation has commenced for up to the sum of the amounts, if any, in
such Participant's Rollover Contribution Account. Up to two Partial Withdrawals
may be made per calendar year.
 
IN-SERVICE WITHDRAWALS
 
     An "In-Service Withdrawal" request may be made by a Participant who has
completed two years of participation in the Plan. Such a withdrawal is limited
to an amount that does not exceed the sum of such participant's following
accounts:
 
          (i) one-half (1/2) of the vested portion of his Employer Matching
     Contribution Account; and
 
          (ii) if he is at least age fifty-nine and one-half (59 1/2), his
     Pretax Account.
 
Only one such withdrawal may be made every 12 months. Upon receiving such a
withdrawal, a participant is suspended from participation in the Plan for three
months.
 
                                       11
<PAGE>   14
 
POST-RETIREMENT WITHDRAWALS
 
     A "Post-retirement Withdrawal" request may be made by a retired participant
(as defined by the Plan) prior to receiving a distribution on account of
retirement. Such withdrawal may be for an amount not to exceed the sum of such
participant's following accounts:
 
          (i)  one-half of his vested Employer Matching Contribution Account;
 
          (ii)  his Aftertax Account;
 
          (iii)  his Rollover Account; and
 
          (iv)  his Pretax Account.
 
A Post-retirement Withdrawal must be at least $500 and only one such withdrawal
may be made per 12 months.
 
HARDSHIP WITHDRAWALS
 
     Withdrawals from a participant's Pretax Account (not including earnings)
may be made under special circumstances notwithstanding the limitations
discussed above. Such withdrawals are allowed only when a participant has
suffered a disability or has withdrawn all other amounts available to be
withdrawn under the Plan and has suffered a financial hardship. Generally
speaking, financial hardship is defined by the Plan to be situations where funds
are required for: (i) purchase of a principal dwelling; (ii) higher education;
(iii) illness; or (iv) preventing eviction from or foreclosure on a principal
residence. Amounts withdrawable are limited to, among other things, amounts
required to meet the hardship. Such withdrawal requests must be accompanied by
financial data or written documentation that the hardship exists as well as a
signed statement that the participant has no other available resources to
reasonably satisfy the immediate financial need. Upon making a hardship
withdrawal, a participant is suspended from participation in the Plan for six
months.
 
                                   PLAN LOANS
 
     Upon application of an eligible participant, the Trustee is authorized by
the Plan to make a loan to the participant. Such loans may be in amounts not to
exceed the lesser of $50,000 (less the highest outstanding loan balance within
the past 12 months), or 50 percent of the participant's account balances. Loans
will not be made for amounts less than $500.
 
     A participant may have two loans outstanding. In addition, no loan will be
made during the three months following repayment.
 
     Each loan must: (i) provide for a repayment term not in excess of five
years, except for loans used to acquire a dwelling that the participant will use
as a principal residence, in which case the loan must provide for a repayment
term not in excess of 25 years; (ii) bear interest at a rate equal to the prime
rate of interest published by the Wall Street Journal (plus 1 percent) or such
other rate as may be specified under the Plan; (iii) provide for repayment by
payroll withholding; (iv) be secured by a participant's accounts and such other
collateral as may be required under the Plan; and (v) be evidenced by a
collateral promissory note. Additional rules and guidelines may be established
from time to time to govern Plan loans.
 
                              PAYMENT OF BENEFITS
 
     Upon the retirement of a participant or upon the termination of a
participant's employment due to disability (as defined by the Plan) or death,
the value of such participant's accounts will be distributed in the form of a
lump sum payment or, at the request of a participant or a participant's
beneficiary, in installment payments over a period certain which does not exceed
the participant's life expectancy or the joint life expectancies of the
participant and his designated beneficiary (limited to five years in the case of
death except for a spousal beneficiary). Payment will be made or begin as soon
as practicable after the end of the month
 
                                       12
<PAGE>   15
 
employment is terminated. However, if the total amount distributable exceeds
$3,500 and the participant is not 70 1/2 years of age or deceased, the
distribution will not be made without the participant's consent.
 
     A participant whose employment with the Company is terminated for reasons
other than retirement, disability or death is entitled to receive the value of
such participant's aftertax and pretax accounts and the vested portion of the
employer contribution account in the form of a lump sum payment. The payment
will be made as soon as practicable after the end of the month in which
employment is terminated. However, if the total amount distributable exceeds
$3,500 and the participant has not attained age 70 1/2, the distribution will
not be made without the participant's consent. Any nonvested amounts will be
forfeited upon distribution to a participant of the vested portion of such
participant's account balance, subject to the reemployment and repayment
provisions of the Plan. In addition, such participant will be required to pay
all administrative, trustee, recordkeeping and other fees associated with
maintenance of such participant's account.
 
     Payments made under any of the foregoing provisions from accounts against
which loans under the Plan are outstanding will be offset by the amount of
unpaid principal and interest due on the loans before any such distribution is
made. Also, different rules may apply to benefits accrued under prior plans. See
"Federal Income Tax Effects" herein for information on the tax consequences of
any benefits paid under the foregoing provisions of the Plan.
 
     Williams' Common Stock distributed under the terms of the Plan to a
participant who is not an "affiliate" of Williams as defined by the securities
laws, generally may be resold without registration or other restriction under
the Securities Act. However, shares distributed to a participant who is an
"affiliate" may only be resold: (i) pursuant to an effective registration
statement; (ii) pursuant to Rule 144; or (iii) pursuant to an appropriate
exemption from the registration requirements of the Securities Act. An
"affiliate" under the Act is defined as "a person that directly, or indirectly
through one or more intermediaries, controls, or is controlled by, or is under
common control with" Williams.
 
                           NO CONTRACT OF EMPLOYMENT
 
     The Plan shall not be deemed to constitute a contract between the Company
and any participant, or to be a consideration for or an inducement or condition
of, employment. Moreover, participation in the Plan shall not give any
participant the right to remain in the employ of the Company or to interfere
with the right of the Company to discharge any participant at any time.
 
                         NONASSIGNABILITY OF INTERESTS
 
     The Plan provides that the right of any participant, or such participant's
beneficiary, to any payment under the Plan shall not be anticipated, conveyed,
alienated, mortgaged or encumbered, either by voluntary or involuntary action,
or by operation of law, nor shall any right or interest be in any manner subject
to levy, attachment, execution, garnishment or any other seizure under legal,
equitable or other process except as permitted by the terms of the Plan or
pursuant to a qualified domestic relations order.
 
                           ADMINISTRATION OF THE PLAN
 
     The Plan is administered by a Benefits Committee appointed by the Board of
Directors of Williams. The Benefits Committee has established an Administrative
Committee to administer day-to-day operations of the Plan. The Administrative
Committee serves as the Plan Administrator. Members of the Benefits Committee
and the Administrative Committee are full-time employees of Williams, the
Company, or their respective affiliates. Neither the Benefits Committee nor the
Administrative Committee may have custody of any of the assets of the Plan or
exercise the right to vote any shares held by the Plan or purchase, sell or
redeem securities on behalf of the Plan. No member of the Benefits Committee or
the Administrative Committee receives any compensation from the Plan, and
members of either Committee may be removed at any time.
 
     Wells Fargo Bank, 707 Wilshire Boulevard, W10-1, Los Angeles, California
90017, is Trustee under the Plan. The Company may prescribe administrative
functions for the Trustee. The functions of the Trustee, as
 
                                       13
<PAGE>   16
 
set forth in the Trust Agreement, are: (i) to receive the funds consisting of
participant and employer contributions; (ii) to acquire and sell the securities
provided for under the various investment Funds; and (iii) to administer and
account for the funds so received in accordance with the terms of the Plan and
the Trust Agreement. The expenses of administering the Plan will be paid by the
Company unless the Plan Administrator directs that the expenses be paid from the
Trust.
 
     Participants may obtain additional information about the Plan and its
administrators by writing or calling the Corporate Employee Benefits Department
at One Williams Center, Tulsa, Oklahoma 74172, (918) 588-2000.
 
                           FEDERAL INCOME TAX EFFECTS
 
     The Company intends to submit the Plan to the Internal Revenue Service and
request the Internal Revenue Service issue a determination letter that the Plan
qualifies, as to form, under Section 401 (a) of the Code, as amended by ERISA,
and that the accompanying trust is exempt from tax under Section 501 (a) of the
Code.
 
     The general summary of applicable federal income tax laws set forth below
is provided solely for the general information of participants. It is neither
intended nor offered as a complete summary or as a legal interpretation. The
Company believes the following summary explains the federal income tax treatment
of the normal operation of the Plan on the date of this document. This
treatment, including the rules applicable to contributions to and distributions
from the Plan, is subject to change.
 
  General
 
     a. Contributions -- Pretax and Employer. A participant's pretax
contributions and employer contributions and rollover contributions made to the
Plan are not subject to federal income tax when contributed to the Plan. Federal
income taxes on these contributions are generally deferred until the participant
or the participant's beneficiary receives a distribution from the Plan.
 
     A participant's total pretax contributions to the Plan (and to any other
salary deferral plan) for any calendar year are limited. In the event this
limitation is exceeded, any excess and any earnings attributable thereto will be
subject to federal income tax.
 
     b. Nondiscrimination Limitations and Adjustments. Additional limitations
apply to the pretax contributions and the aggregate of annual employer
contributions and annual aftertax contributions made to the Plan for and by
"highly compensated" participants for each year. Complex tests are applied each
year to assure that the pretax contribution percentages and the aggregate
percentage of the annual employer contributions and annual aftertax
contributions of the group of highly compensated participants compared to such
contribution percentages of all other participants is within the limitations set
forth in Sections 401 (k) and 401 (m) of the Code. If these limitations are
exceeded, the applicable contribution percentage of each highly compensated
participant is subject to reduction in order to meet the appropriate test. The
amount of any such reduction of pretax and employer contributions and earnings
attributable thereto will be subject to federal income tax and will be
distributed to the highly compensated participant prior to March 16 of the year
following the year for which such reduction is required, pursuant to the terms
of the Plan. The amount of any such reduction of aftertax contributions and any
earnings attributable thereto will likewise be distributed to the highly-
compensated participant; however, only the earnings attributable thereto will be
subject to federal income tax.
 
     c. Plan Account Earnings. Earnings on a participant's accounts in the Plan
will not be subject to federal income tax until distributed from the Plan.
 
  Taxation of Distributions
 
     a. Lump Sum and Other Distributions. In general, amounts distributed from
the Plan to a participant or to such participant's beneficiary, other than as a
"lump sum distribution" described below, are treated as a
 
                                       14
<PAGE>   17
 
taxable distribution, in accordance with the provisions of Section 72 of the
Code and regulations to be prescribed by the Secretary of the Treasury. Amounts
distributed from a participant's aftertax account are treated as being, in part,
a tax-free return of aftertax contributions and, in part, as a taxable
distribution. In general, the portion of each distribution from a participant's
aftertax contributions account which is not taxable is determined by the ratio,
at the time of distribution, of the participant's total aftertax contributions
made to the Plan (less previous distributions of aftertax contributions) to the
total value of the participant's aftertax contributions account in the Plan. For
this purpose, the amount distributed to a participant does not include net
unrealized appreciation in Williams' Common Stock attributable to the
participant's aftertax contributions to the extent the amount distributed
includes such securities. The tax basis of such securities is to be determined
in accordance with regulations prescribed by the Secretary of the Treasury. Any
federal income tax on the net unrealized appreciation in Williams' Common Stock
attributable to a participant's aftertax contributions will be deferred until a
later sale or exchange of the securities.
 
     In general, a "lump sum distribution" is a distribution to a participant of
the participant's entire interest in the Plan if the distribution to such
participant is made during one calendar year because of such participant's
separation from service.
 
     For taxable years beginning before January 1, 2000 a participant who: (i)
has attained at least age 59 1/2; (ii) has at least five years of Plan
participation; and (iii) does not elect a tax-free rollover of any portion of a
lump sum distribution (described below) may elect to have special income
averaging provisions apply for determining federal income tax on the ordinary
income portion of the "total taxable amount" (defined below) of a lump sum
distribution. These special income averaging provisions provide for
determination of the applicable federal income tax on a five-year averaging
basis generally and, in the case of a participant who had attained at least age
50 before January 1, 1986, on a ten-year averaging basis.
 
     The "total taxable amount" is the portion of a lump sum distribution that
exceeds the sum of: (i) aftertax contributions not previously distributed, and
(ii) "net unrealized appreciation" in Williams' Common Stock included in the
lump sum distribution. ("Net unrealized appreciation" can be excluded for
federal income tax purposes under this rule, even if a participant does not have
five years of Plan participation, if Williams' Common Stock is received in a
distribution which would otherwise be a lump sum distribution without regard to
the five-year participation requirement.) "Net unrealized appreciation" is the
difference in the fair market value of Williams' Common Stock on the date
distributed over the tax basis of the securities on that date. The tax basis of
such securities is to be determined in accordance with regulations prescribed by
the Secretary of the Treasury. Federal income tax on the net unrealized
appreciation is deferred until a later sale or exchange of the securities.
However, the Secretary of the Treasury is to provide regulations permitting a
participant to elect before receiving a lump sum distribution to have such net
unrealized appreciation included in the total taxable amount.
 
     b. Rollover. The Code permits a participant to defer taxation of any
portion of the taxable amount of a lump sum distribution and installment
distributions payable over a period of less than 10 years by electing a direct
rollover of that portion into an Individual Retirement Arrangement ("IRA") or,
in certain cases, into any qualified employee retirement plan that accepts
direct rollover contributions.
 
     In addition, a participant who actually receives a distribution may make a
rollover to an IRA or a qualified plan by transferring the amount being rolled
over to the other plan or IRA not later than 60 days after receipt of the amount
and notifying the trustee or issuer of the other plan or IRA that the transfer
is a rollover contribution. However, if a participant elects to receive a
distribution, only 80 percent of the distribution will be paid to such
participant, in most cases, due to federal income tax withholding. To avoid
income tax on the entire distribution, a participant will need to use other
funds so that all of the distribution is rolled over within 60 days of receipt.
 
     If the participant's beneficiary is the participant's spouse, the spouse
may be eligible to roll over all or any portion of the taxable amount of a
distribution received on account of the death of the participant, subject to
essentially the same rules that would have been applicable to the participant,
as described above.
 
                                       15
<PAGE>   18
 
     Federal income taxation on the amount rolled over is deferred until a
distribution is made from the plan or IRA to which the amount is rolled over.
Not all distributions are eligible to be rolled over. There are specific and
technical qualifications and requirements set forth in sec.402 of the Code that
must be satisfied in order for a Plan distribution to be eligible to be rolled
over.
 
     c. Ten Percent Penalty Tax. A participant who receives a distribution from
the Plan prior to age 59 1/2 generally must pay an additional tax (presently 10
percent) on the taxable portion of such distribution. The Code contains several
special rules which exclude from this 10 percent tax certain distributions made
because of death, disability, separation from service after age 55, deductible
medical expenses and other specified reasons.
 
     d. Excise Tax on Substantial Distributions. For taxable years beginning on
or after January 1, 2000 a participant who receives in a single calendar year
more than $150,000 (subject to inflation adjustments) in total distributions
from qualified retirement plans including IRAs and tax-sheltered annuities, is
required to pay a 15 percent excise tax on amounts received in excess of such
amount. Certain amounts, such as aftertax contributions, are not counted toward
the applicable dollar limit. Special rules may apply to lump sum distributions
and to benefits earned as of August 1, 1986. A special 15 percent excise tax may
also apply to a portion of any benefits remaining unpaid at the participant's
death.
 
     e. Withholding. The taxable amount of any distribution from the Plan to a
participant or a beneficiary is subject to federal income tax withholding. In
most cases, federal law requires 20 percent of the distribution to be withheld
and some states also require withholding. In addition, the 20 percent
withholding could be insufficient, thereby requiring the timely payment of
estimated taxes or the payment of tax penalties and interest.
 
     f. IRA Contributions. Eligibility for or participation in a tax-qualified
retirement or savings plan, such as the Plan, may reduce or eliminate the
ability of a participant or a participant's spouse to make tax-deductible
contributions to an IRA. To the extent that a participant's ability to make
tax-deductible IRA contributions is reduced, the participant may make
nondeductible IRA contributions.
 
     The foregoing provides only a general description of the application of
federal income tax laws applicable to participation in the Plan. The foregoing
description does not address the effects of foreign, state and local tax laws.
 
     BECAUSE OF THE COMPLEXITIES INVOLVED IN THE APPLICATION OF THE TAX LAWS TO
PARTICIPATION IN THE PLAN, EACH PARTICIPANT IS STRONGLY URGED TO CONSULT A TAX
ADVISOR WITH RESPECT TO SUCH PARTICIPANT'S OWN SITUATION.
 
                                       16


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