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                                                                    EXHIBIT 99-6
 
                          THE WILLIAMS COMPANIES, INC.
                                 EXCHANGE OFFER
                             QUESTIONS AND ANSWERS
 
   
Q.   WHY IS WILLIAMS OFFERING TO EXCHANGE ITS 9.60% QUARTERLY INCOME
     CAPITAL SECURITIES (QUICS) FOR ITS $2.21 CUMULATIVE PREFERRED STOCK, 
     $1.00 PAR VALUE (THE "PREFERRED STOCK") (WHICH CONSTITUTE ALL OUTSTANDING 
     SHARES OF THE PREFERRED STOCK)?
    
 
A.   The principal purpose of the Exchange Offer is to improve the Company's
     after-tax cash flow by replacing shares of the Preferred Stock with the
     QUICS. The potential cash flow benefit to the Company arises because
     interest payable on the QUICS will be deductible by the Company for federal
     income tax purposes, while the dividends payable on the shares of the
     Preferred Stock are not deductible.
 
     The Company believes the Exchange Offer is fair to holders of shares of the
     Preferred Stock, although the Company has not received any report, opinion
     or appraisal relating to the fairness of Exchange. The Exchange Offer will
     result in the holders obtaining a security that is senior to the Preferred
     Stock, that provides for a higher interest rate than the equivalent
     dividend on the Preferred Stock and that provides for a definite maturity
     date. THE COMPANY, ITS BOARD OF DIRECTORS AND ITS EXECUTIVE OFFICERS MAKE
     NO RECOMMENDATION AS TO WHETHER ANY SHAREHOLDER SHOULD EXCHANGE ANY OR ALL
     OF SUCH SHAREHOLDER'S SHARES OF THE PREFERRED STOCK PURSUANT TO THE
     EXCHANGE OFFER. SHAREHOLDERS MUST MAKE THEIR OWN DECISIONS WHETHER TO
     EXCHANGE THEIR SHARES OF THE PREFERRED STOCK AND, IF SO, HOW MANY SHARES TO
     EXCHANGE.
 
Q.   WHAT DO THE TERMS "BENEFICIAL OWNER," "REGISTERED HOLDER," "NOMINEE"
     AND "CUSTODIAN" MEAN?
 
A.   BENEFICIAL OWNER.  The beneficial owner is one whose shares of the
     Preferred Stock are held by a broker, dealer, bank, trust company or other
     institution and registered in the name of such institution. A beneficial
     owner who wishes to tender such shares should contact such registered
     holder promptly and instruct it whether or not to tender such shares on
     behalf of such beneficial owner.
 
     REGISTERED HOLDER.  The registered holder of shares of the Preferred Stock
     is the person or institution in whose name such shares are actually
     registered on the register kept by the Company at its office or agency for
     such purpose. If shares of the Preferred Stock are registered directly in
     the name of the holder who is the beneficial owner of such shares, such
     beneficial holder is also the registered holder. If shares of the Preferred
     Stock are registered in the name of a broker, dealer, bank, trust company
     or other institution, such institution is the registered holder of such
     shares. Generally, the registered holder of shares of the Preferred Stock
     completes the Letter of Transmittal in order to tender such shares.
     However, if the registered holder or physical holder does not want to
     complete the Letter of Transmittal itself, such holder may ask any broker,
     dealer, bank or trust company to complete the Letter of Transmittal on its
     behalf and effect the tender of such shares.
 
     NOMINEES AND CUSTODIAN.  These terms refer to the broker, dealer, bank,
     trust company or other institution that holds shares of the Preferred Stock
     on behalf of a beneficial owner of such shares. Although such shares belong
     to such beneficial owner, such institution is the registered holder of such
     shares and, accordingly, such shares are registered in the name of such
     institution and such beneficial holder will need to contact such
     institution and provide it with completed Instructions with Respect to the
     Tender of shares of the Preferred Stock form in order to tender such
     shares.
 
Q.   WHAT ARE QUICS?
 
     The QUICS are unsecured debt securities to be issued by The Williams
     Companies which are subordinate in right to payment to its senior
     indebtedness and to all obligations of its subsidiaries.
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     However, the QUICS are senior to the claims of the holders of The Williams
     Companies' capital stock, including the shares of the Preferred Stock. In
     addition, the QUICS will have the following terms:
 
- -    The QUICS will have a 30 year stated maturity, whereas the shares of the
     Preferred Stock have no stated final maturity.
 
   
- -    The QUICS will bear interest at 9.60% per annum and are payable quarterly
     on the day before the date you would have received dividend payments on the
     shares of the Preferred Stock, if they were not tendered.
    
 
   
- -    If the Company fails to make an interest payment on any Interest Payment
     Date, the Company will be subject to the Late Payment Penalty, which
     requires the Company to pay the holders of QUICS, in addition to the
     Overdue Interest, an amount of cash equal to 11.10%, per annum, on the
     Overdue Interest, compounded quarterly, during the Late Payment Period.
     Because of the Late Payment Penalty, the Company believes that it is
     unlikely that it will fail to make any interest payment when due on the
     QUICS. Although the quarterly dividend payments for the shares of the
     Preferred Stock may be suspended, there is no monetary penalty during such
     a suspension. In addition, the interest received on the QUICS will not be
     eligible for the dividends received deduction for corporate holders,
     whereas dividends on the shares of the Preferred Stock are eligible for the
     dividends received deduction for corporate holders. Lastly, the covenants
     under which the QUICS are issued do not provide any voting rights to
     holders during the Deferral Period, while, under certain circumstances, the
     holders of the shares of the Preferred Stock may have certain limited
     voting rights.
    
 
Q.   HOW DOES THE INTEREST RATE ON THE QUICS COMPARE TO THE DIVIDEND RATE
     ON THE SHARES OF THE PREFERRED STOCK?
 
   
A.   The effective yield for the shares of the Preferred Stock, at its stated
     liquidation preference of $25 per share, is 8.84% per annum. The interest
     rate on the QUICS is 9.60%, or .76% higher than the shares of the Preferred
     Stock.
    
 
Q.   THE NEXT DIVIDEND PAYMENT DATE (SUBJECT TO BOARD DECLARATION) FOR
     THE SHARES OF THE PREFERRED STOCK WILL BE SEPTEMBER 1, 1995. WILL THE
     HOLDERS THAT PARTICIPATE IN THE EXCHANGE OFFER BE ELIGIBLE FOR THAT
     DIVIDEND?
 
A.   No. However, as part of the Exchange Offer, holders of shares of the
     Preferred Stock accepted for exchange in the Exchange Offer will be
     entitled to receive cash equal to the accrued and unpaid dividend on such
     shares accumulating after June 1, 1995, to the Issuance Date in lieu of
     such dividends, to be payable on the Issuance Date to such holders.
 
Q.   WILL THE QUICS BE LISTED?
 
A.   Like the Preferred Stock, the QUICS are expected to be listed on the New
     York Stock Exchange.
 
Q.   WILL THE EXCHANGE CONSTITUTE A TAXABLE EVENT?
 
A.   The Exchange Offer will be a taxable event to those holders that tender
     their shares of the Preferred Stock in exchange for the QUICS. Williams
     recommends that holders read the description on "Risk Factors" within the
     Prospectus and/or consult their tax advisor to determine their specific
     circumstances.
 
Q.   WILL BACKUP WITHHOLDING APPLY TO PAYMENTS MADE PURSUANT TO THE
     EXCHANGE OFFER OR WITH RESPECT TO THE QUICS?
 
A.   Under federal income tax law, a 31% backup withholding tax will be imposed
     on the amount of payments made pursuant to the Exchange Offer, payments
     made with respect to the QUICS and payments of the proceeds of sale of
     QUICS that are made to certain shareholders. In order to avoid such backup
     withholding, each tendering shareholder must provide the Exchange Agent
     with such shareholder's correct taxpayer identification number and certify
     that such shareholder is not subject to backup
 
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     withholding by completing Substitute Form W-9. If the Exchange Agent is not
     provided with the correct taxpayer identification number, the shareholder
     may be subject to a $50 penalty imposed by the Internal Revenue Service.
 
     Certain shareholders (including, among others, all corporations and certain
     foreign individuals) are not subject to these backup withholding
     requirements. In order to satisfy the Exchange Agent that a foreign
     individual qualifies as an exempt recipient, such shareholder must submit a
     statement of Form W-8, signed under penalties of perjury, attesting to that
     individual's exempt status. Form W-8 can be obtained from the Information
     Agent. For further information concerning backup withholding and
     instructions for completing the Substitute Form W-9, consult the Guidelines
     for Certification of Taxpayer Identification Number on Substitute Form W-9.
 
Q.   WHAT IS THE PROCESS FOR A HOLDER TO PARTICIPATE IN THE EXCHANGE OFFER?
 
A.   Each holder of the shares of the Preferred Stock should receive a copy of
     the Prospectus, a Letter of Transmittal, a Notice of Guaranteed Delivery, a
     letter addressed to clients and Guidelines for Certification of Taxpayer
     Identification Number on Substitute Forms W-9 and W-8 along with this
     Question and Answer letter. Williams encourages each holder to review each
     document and to contact their broker and tax advisor for assistance. In the
     event holders require other sources of information, they should contact the
     Information Agent or the Dealer Managers at the toll-free numbers listed in
     the Prospectus or the Letter of Transmittal.
 
     Registered (physical) holders must send the certificates representing
     shares of the Preferred Stock to be tendered and a completed Letter of
     Transmittal to the Exchange Agent or may ask any broker, dealer, bank or
     trust company to do so on its behalf.
 
     If the shares of the Preferred Stock are registered in the name of a
     broker, dealer, bank, trust company or other nominee, the holder must
     instruct such nominee to tender on its behalf such shares by completing the
     Letter of Transmittal or by Agent's Message for book-entry transfer.
     Williams recommends that holders contact the Information Agent before
     beginning the process.
 
     The term "Agent's Message" means a message, transmitted by DTC to, and
     received by, the Exchange Agent and forming a part of a book-entry
     confirmation, which states that DTC has received an express acknowledgment
     from the participant in DTC tendering the shares of the Preferred Stock
     which are the subject of such book-entry confirmation, that such
     participant has received and agrees to be bound by the terms of the Letter
     of Transmittal and that the Company may enforce such agreement against such
     participant.
 
     The Letter of Transmittal must be mailed in time to reach the Exchange
     Agent by the Expiration Time of the Exchange Offer. In the event the holder
     is unable to fulfill the requirements of the Letter of Transmittal, the
     holder must submit the Notice of Guaranteed Delivery, received by the
     Exchange Agent prior to the Expiration Time, and then, within five New York
     Stock Exchange trading days, the Exchange Agent must receive the
     certificates, in proper form for transfer, and the completed Letter of
     Transmittal.
 
Q.   ARE THERE ANY COSTS THAT A PARTICIPATING HOLDER WILL BEAR IN CONTEXT
     OF THE EXCHANGE OFFER?
 
A.   A fee of $.50 per share will be paid to brokers that successfully solicit
     tenders on behalf of The Williams Companies. In addition, the Dealer
     Managers, the Information Agent and the Exchange Agent will be paid fees
     for assisting with this transaction. All such fees will be paid by The
     Williams Companies. However, if such holder's shares are held by a broker,
     dealer, bank or trust company, the holder may be charged a fee for their
     services.
 
Q.   WHEN WILL THE EXCHANGE OFFER EXPIRE?
 
   
A.   The Exchange Offer is scheduled to expire at 5:00 p.m., New York City time,
     on August 21, 1995 or, if extended by the Company, in its sole discretion,
     the latest date and time to which extended (the
    
 
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     "Expiration Time"). The Company may decide to amend or terminate the
     Exchange Offer prior to the Expiration Time, and it may decide to extend or
     terminate the Exchange Offer if fewer than 1,000,000 shares of the
     Preferred Stock have been tendered and not withdrawn prior to the
     expiration of the Exchange Offer or if the QUICS have not been accepted for
     listing on the New York Stock Exchange. The Exchange Offer is also subject
     to certain additional conditions, as described further in the accompanying
     Prospectus.
 
Q.   CAN A HOLDER OF SHARES OF THE PREFERRED STOCK REVOKE ITS EXCHANGE OF
     SHARES?
 
A.   Tenders of shares of the Preferred Stock pursuant to the Exchange Offer may
     be withdrawn at any time prior to the Expiration Time and, unless
     theretofore accepted for exchange pursuant to the Exchange Offer, may also
     be withdrawn at any time after 40 business days from the date of the
     Prospectus.
 
     To be effective, a written notice of withdrawal delivered by mail, hand
     delivery or facsimile transmission must be timely received by the Exchange
     Agent at the address set forth in the Letter of Transmittal. Any such
     notice of withdrawal must specify (i) the holder named in the Letter of
     Transmittal as having tendered certificates with respect to the shares of
     the Preferred Stock to be withdrawn, (ii) if the shares of the Preferred
     Stock are held in certificated form, the certificate numbers of such shares
     to be withdrawn, (iii) a statement that such holder is withdrawing its
     election to have such shares of the Preferred Stock exchanged, and the name
     of the registered holder of such shares of the Preferred Stock, and such
     notice of withdrawal must be signed by the holder in the same manner as the
     original signature on the Letter of Transmittal (including any required
     signature guarantees) or be accompanied by evidence satisfactory to the
     Company that the person withdrawing the tender has succeeded to the
     beneficial ownership of the shares of the Preferred Stock being withdrawn.
     The Exchange Agent will return the properly withdrawn shares of the
     Preferred Stock promptly following receipt of notice of withdrawal. If
     shares of the Preferred Stock have been tendered pursuant to the procedure
     for book-entry transfer, any notice of withdrawal must specify the name and
     number of the account at DTC to be credited with the withdrawn shares of
     the Preferred Stock and otherwise comply with DTC's procedures.
 
Q.   TO WHOM SHOULD ADDITIONAL QUESTIONS BE ADDRESSED?
 
A.   Additional questions or requests for information should be addressed to the
     Information Agent, Morrow & Co., Inc. Banks and Brokers call toll free
     1-800-662-5200; all others call toll free 1-800-566-9058.
 
THE ABOVE SUMMARY DOES NOT PURPORT TO BE COMPLETE AND IS SUBJECT IN ALL RESPECTS
TO THE PROVISIONS OF AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO THE
PROSPECTUS AND THE LETTER OF TRANSMITTAL.
 
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