AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON DECEMBER 11, 2001.



                                                      REGISTRATION NO. 333-72982

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

                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549
                             ---------------------

                                   AMENDMENT


                                    NO. 1 TO

                                    FORM S-4
            REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933
                             ---------------------
                   TRANSCONTINENTAL GAS PIPE LINE CORPORATION
             (Exact name of registrant as specified in its charter)

<Table>
                                                          
           DELAWARE                          4922                         74-1079400
(State or other jurisdiction of  (Primary Standard Industrial   (I.R.S. Employer Identification
incorporation or organization)    Classification Code Number)                No.)
</Table>

                            2800 POST OAK BOULEVARD
                              HOUSTON, TEXAS 77056
                                 (713) 215-2000
  (Address, including zip code, and telephone number, including area code, of
                   registrant's principal executive offices)
                             ---------------------

                           WILLIAM G. VON GLAHN, ESQ.
                   SENIOR VICE PRESIDENT AND GENERAL COUNSEL
                          THE WILLIAMS COMPANIES, INC.
                              ONE WILLIAMS CENTER
                             TULSA, OKLAHOMA 74172
                                 (918) 573-2000
           (Name, address, including zip code, and telephone number,
                   including area code of agent for service)
                             ---------------------
                                    COPY TO:
                               WILLIAM MARK YOUNG
                                ANDREWS & KURTH
                      MAYOR, DAY, CALDWELL & KEETON L.L.P.
                             600 TRAVIS, SUITE 4200
                              HOUSTON, TEXAS 77002
                                 (713) 220-4200
                             ---------------------
     APPROXIMATE DATE OF COMMENCEMENT OF PROPOSED SALE TO PUBLIC:  As soon as
practicable following the effectiveness of this registration statement.
                             ---------------------
     If the securities being registered on this form are being offered in
connection with the formation of a holding company and there is compliance with
General Instruction G, check the following box.  [ ]

     If this form is filed to register additional securities for an offering
pursuant to Rule 462(b) under the Securities Act, check the following box and
list the Securities Act registration number of the earlier effective
registration statement for the same offering.  [ ]

     If this form is a post-effective amendment filed pursuant to Rule 462(d)
under the Securities Act, check the following box and list the Securities Act
registration statement number of the earlier effective registration statement
for the same offering.  [ ]


                             ---------------------
     THE REGISTRANT HEREBY AMENDS THIS REGISTRATION STATEMENT ON SUCH DATE OR
DATES AS MAY BE NECESSARY TO DELAY ITS EFFECTIVE DATE UNTIL THE REGISTRANT SHALL
FILE A FURTHER AMENDMENT WHICH SPECIFICALLY STATES THAT THIS REGISTRATION
STATEMENT SHALL THEREAFTER BECOME EFFECTIVE IN ACCORDANCE WITH SECTION 8(a) OF
THE SECURITIES ACT OF 1933 OR UNTIL THE REGISTRATION STATEMENT SHALL BECOME
EFFECTIVE ON SUCH DATE AS THE SECURITIES AND EXCHANGE COMMISSION, ACTING
PURSUANT TO SAID SECTION 8(a), MAY DETERMINE.
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------


PROSPECTUS


                              EXCHANGE OFFER FOR:

 ALL 7% SERIES A NOTES DUE AUGUST 15, 2011 FOR 7% SERIES B NOTES DUE AUGUST 15,
                                      2011
                                       OF
                   TRANSCONTINENTAL GAS PIPE LINE CORPORATION

                  THE EXCHANGE OFFER WILL EXPIRE AT 5:00 P.M.,

           NEW YORK CITY TIME, ON JANUARY 10, 2002, UNLESS EXTENDED.


     Terms of the exchange offer:

     - We are offering a total of $300 million of our 7% Series B Notes due
       August 15, 2011 for an equal amount of our outstanding 7% Series A Notes
       due August 15, 2011.

     - We will exchange new notes for all outstanding old notes that are validly
       tendered and not withdrawn prior to the expiration of the exchange offer.

     - You may withdraw tenders of old notes at any time prior to the expiration
       of the exchange offer.

     - The exchange of old notes for new notes will not be a taxable transaction
       for U.S. federal income tax purposes, but you should see the discussion
       under the caption "Material United States Federal Income Tax
       Considerations" on page 28 for more information.

     - We will not receive any cash proceeds from the exchange offer.

     - The terms of the new notes are substantially identical to those of the
       outstanding old notes, except that the transfer restrictions and
       registration rights relating to the old notes do not apply to the new
       notes.

     - The exchange offer is the initial offering of the new notes.

     - There is no established trading market for the new notes or the old
       notes.

     - We do not intend to apply for listing of the new notes on any national
       securities exchange or for quotation through The Nasdaq National Market.

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

     SEE "RISK FACTORS" BEGINNING ON PAGE 6 FOR A DISCUSSION OF RISKS YOU SHOULD
CONSIDER.

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

     NEITHER THE SECURITIES AND EXCHANGE COMMISSION NOR ANY STATE SECURITIES
COMMISSION HAS APPROVED OR DISAPPROVED OF THESE SECURITIES OR PASSED UPON THE
ADEQUACY OR ACCURACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A
CRIMINAL OFFENSE.

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


                The date of this prospectus is December 11, 2001



                         WHERE YOU CAN FIND INFORMATION

     We file annual, quarterly and special reports and other information with
the SEC. You may read and copy any material on file with the SEC at the SEC's
Public Reference Room at 450 Fifth Street, N.W., Judiciary Plaza, Washington,
D.C. 20549. Our filings are available to the public over the Internet at the
SEC's web site at http://www.sec.gov. Please call the SEC at 1-800-SEC-0330 for
further information on the Public Reference Room.


     We are "incorporating by reference" information which we file with the SEC,
which means that we can disclose important information to you by referring you
to those documents. The information incorporated by reference or deemed
incorporated by reference is an important part of this prospectus, and
information that we file later with the SEC will be deemed to automatically
update and supersede this incorporated information. We incorporate by reference
the documents listed below and any future filings made with the SEC under
Sections 13(a), 13(c), 14, or 15(d) of the Securities Exchange Act of 1934 prior
to the completion of this offering.


     - Our Annual Report on Form 10-K for the year ended December 31, 2000.

     - Our Quarterly Report on Form 10-Q for the quarter ended March 31, 2001.

     - Our Quarterly Report on Form 10-Q for the quarter ended June 30, 2001.


     - Our Quarterly Report on Form 10-Q for the quarter ended September 30,
      2001.


     - Our Current Report on Form 8-K dated August 20, 2001.

     You can get a free copy of any of the documents incorporated by reference
by making an oral or written request directed to:

     Transcontinental Gas Pipe Line Corporation
     2800 Post Oak Boulevard
     P.O. Box 1396
     Houston, Texas 77251
     Attention: General Counsel
     Telephone: (713) 215-2000

                           FORWARD-LOOKING STATEMENTS

     Matters discussed in this Prospectus or incorporated by reference herein,
excluding historical information, include forward-looking
statements -- statements that discuss our expected future results based on
current and pending business operations. We make these forward-looking
statements in reliance on the safe harbor protections provided under the Private
Securities Litigation Reform Act of 1995.

     Forward-looking statements can be identified by words such as
"anticipates," "believes," "expects," "planned," "scheduled" or similar
expressions. Although we believe these forward-looking statements are based on
reasonable assumptions, statements made regarding future results are subject to
numerous assumptions, uncertainties and risks that may cause future results to
be materially different from the results stated or implied in this document.

     The following are important factors that could cause actual results to
differ materially from any results projected, forecasted, estimated or budgeted
by us in forward-looking statements:

     - risks and uncertainties related to changes in general economic conditions
       in the United States, changes in laws and regulations to which we are
       subject, including tax, environmental and employment laws and
       regulations, the cost and effects of legal and administrative claims and
       proceedings against us or our subsidiaries or which may be brought
       against us or our subsidiaries, the effect of changes in accounting
       policies, and conditions of the capital markets we utilize to access
       capital to finance operations;

                                        ii


     - risks and uncertainties related to the impact of future federal and state
       regulation of business activities, including allowed rates of return, the
       pace of deregulation in retail natural gas markets and the resolution of
       other regulatory matters;

     - risks and uncertainties related to the ability to develop expanded
       markets as well as maintaining existing markets;

     - risks and uncertainties related to the ability to obtain governmental and
       regulatory approval of various expansion projects;

     - risks and uncertainties related to the ability to successfully implement
       key systems such as a service delivery system; and

     - risks and uncertainties related to the ability to control costs.

     In addition, future utilization of pipeline capacity can depend on energy
prices, competition from other pipelines and alternative fuels, the general
level of natural gas demand, decisions by customers not to renew expiring
natural gas transportation contracts and weather conditions, among other things.
Further, gas prices, which indirectly impact transportation and operating
profits, may fluctuate in unpredictable ways.

                                       iii


                               PROSPECTUS SUMMARY

     The following summary highlights selected information from the prospectus
and may not contain all of the information that is important to you. This
prospectus includes specific terms of the new notes, as well as information
regarding our business and detailed financial data. We encourage you to read
this entire prospectus carefully, including the discussion of risks and
uncertainties affecting our business included under the caption "Risk Factors,"
and the documents to which we refer you.

                   TRANSCONTINENTAL GAS PIPE LINE CORPORATION

     We are an interstate natural gas transmission company that owns a natural
gas pipeline system extending from Texas, Louisiana, Mississippi and the Gulf of
Mexico through the states of Alabama, Georgia, South Carolina, North Carolina,
Virginia, Maryland, Pennsylvania and New Jersey to the New York City
metropolitan area. We also hold a minority interest in Cardinal Pipeline
Company, LLC, an intrastate natural gas pipeline located in North Carolina. Our
principal business is the transportation of natural gas.

     We are a wholly-owned subsidiary of Williams Gas Pipeline Company, LLC.
Williams Gas Pipeline Company is a wholly-owned subsidiary of The Williams
Companies, Inc. We were incorporated in Delaware in 1948 and our principal
executive offices are located at the Williams Tower, 2800 Post Oak Boulevard,
Houston, Texas 77056 (telephone: (713) 215-2000).

                               THE EXCHANGE OFFER

Old Notes.....................   7% Series A Notes due August 15, 2011, which
                                 were issued on August 27, 2001.

New Notes.....................   7% Series B Notes due August 15, 2011. The
                                 terms of the new notes are substantially
                                 identical to those terms of the outstanding old
                                 notes, except that the transfer restrictions
                                 and registration rights relating to the old
                                 notes do not apply to the new notes.

Exchange Offer................   We are offering to exchange up to $300 million
                                 principal amount of our 7% Series B Notes due
                                 August 15, 2011 which have been registered
                                 under the Securities Act for an equal amount of
                                 our outstanding 7% Series A Notes due August
                                 15, 2011, to satisfy our obligations under the
                                 registration rights agreement that we entered
                                 into when the old notes were sold in
                                 transactions under Rule 144A under the
                                 Securities Act.


Expiration Date; Tenders......   The exchange offer will expire at 5:00 p.m.,
                                 New York City time, on January 10, 2002, unless
                                 extended. By tendering your old notes, you
                                 represent to us that:


                                 - you are not our "affiliate" as defined in
                                   Rule 405 under the Securities Act;

                                 - any new notes you receive in the exchange
                                   offer are being acquired by you in the
                                   ordinary course of your business;

                                 - at the time of commencement of the exchange
                                   offer, neither you nor, to your knowledge,
                                   anyone receiving new notes from you, has any
                                   arrangement or understanding with any person
                                   to participate in the distribution of the new
                                   notes, as defined in the Securities Act, in
                                   violation of the Securities Act;

                                        1


                                 - if you are not a participating broker-dealer,
                                   you are not engaged in, and do not intend to
                                   engage in, the distribution of the new notes,
                                   as defined in the Securities Act; and

                                 - if you are a broker-dealer, you will receive
                                   the new notes for your own account in
                                   exchange for old notes that were acquired by
                                   you as a result of your market-making or
                                   other trading activities and that you will
                                   deliver a prospectus in connection with any
                                   resale of the new notes you receive. For
                                   further information regarding resales of the
                                   new notes by participating broker-dealers,
                                   see the discussion below under the caption
                                   "Plan of Distribution."


Withdrawal; Non-Acceptance....   You may withdraw any old notes tendered in the
                                 exchange offer at any time prior to 5:00 p.m.,
                                 New York City time, on January 10, 2002. If we
                                 decide for any reason not to accept any old
                                 notes tendered for exchange, the old notes will
                                 be returned to the registered holder at our
                                 expense promptly after the expiration or
                                 termination of the exchange offer. In the case
                                 of old notes tendered by book-entry transfer
                                 into the exchange agent's account at The
                                 Depository Trust Company, any withdrawn or
                                 unaccepted old notes will be credited to the
                                 tendering holder's account at The Depository
                                 Trust Company. For further information
                                 regarding the withdrawal of tendered old notes,
                                 see "The Exchange Offer -- Terms of the
                                 Exchange Offer; Period for Tendering Old Notes"
                                 and "-- Withdrawal Rights."


Conditions to the Exchange
Offer.........................   The exchange offer is subject to customary
                                 conditions, which we may waive. See the
                                 discussion below under the caption "The
                                 Exchange Offer -- Conditions to the Exchange
                                 Offer" for more information regarding the
                                 conditions to the exchange offer.

Procedures for Tendering Old
Notes.........................   Unless you comply with the procedures described
                                 below under the caption "The Exchange
                                 Offer -- Guaranteed Delivery Procedures," you
                                 must do one of the following on or prior to the
                                 expiration of the exchange offer to participate
                                 in the exchange offer:


                                 - tender your old notes by sending the
                                   certificates for your old notes, in proper
                                   form for transfer, a properly completed and
                                   duly executed letter of transmittal, with any
                                   required signature guarantees, and all other
                                   documents required by the letter of
                                   transmittal, to Citibank, N.A., as exchange
                                   agent, at one of the addresses listed below
                                   under the caption "The Exchange
                                   Offer -- Exchange Agent"; or



                                 - tender your old notes by using the book-entry
                                   transfer procedures described below and
                                   transmitting a properly completed and duly
                                   executed letter of transmittal, with any
                                   required signature guarantees, or an agent's
                                   message instead of the letter of transmittal,
                                   to the exchange agent. In order for a
                                   book-entry transfer to constitute a valid
                                   tender of your old notes in the exchange
                                   offer, Citibank, N.A., as exchange agent,
                                   must receive a confirmation of book-entry
                                   transfer of your old notes into the exchange
                                   agent's account at The Depository Trust
                                   Company prior to the expiration of the


                                        2


                                   exchange offer. For more information
                                   regarding the use of book-entry transfer
                                   procedures, including a description of the
                                   required agent's message, see the discussion
                                   below under the caption "The Exchange
                                   Offer -- Book Entry Transfer."

Guaranteed Delivery
Procedures....................   If you are a registered holder of the old notes
                                 and wish to tender your old notes in the
                                 exchange offer, but

                                 - the old notes are not immediately available,

                                 - time will not permit your old notes or other
                                   required documents to reach the exchange
                                   agent before the expiration of the exchange
                                   offer, or

                                 - the procedure for book-entry transfer cannot
                                   be completed prior to the expiration of the
                                   exchange offer, then you may tender old notes
                                   by following the procedures described below
                                   under the caption "The Exchange
                                   Offer -- Guaranteed Delivery Procedures."

Special Procedures for
Beneficial Owners.............   If you are a beneficial owner whose old notes
                                 are registered in the name of a broker, dealer,
                                 commercial bank, trust company or other nominee
                                 and you wish to tender your old notes in the
                                 exchange offer, you should promptly contact the
                                 person in whose name the old notes are
                                 registered and instruct that person to tender
                                 on your behalf.

                                 If you wish to tender in the exchange offer on
                                 your own behalf, prior to completing and
                                 executing the letter of transmittal and
                                 delivering your old notes, you must either make
                                 appropriate arrangements to register ownership
                                 of the old notes in your name or obtain a
                                 properly completed bond power from the person
                                 in whose name the old notes are registered.

United States Federal Income
Tax Consequences..............   The exchange of old notes for new notes in the
                                 exchange offer will not be a taxable
                                 transaction for United States federal income
                                 tax purposes. See the discussion below under
                                 the caption "Material United States Federal
                                 Income Tax Considerations" for more information
                                 regarding the tax consequences to you of the
                                 exchange offer.

Use of Proceeds...............   We will not receive any cash proceeds from the
                                 exchange offer.


Exchange Agent................   Citibank, N.A. is the exchange agent for the
                                 exchange offer. You can find the addresses and
                                 telephone number of the exchange agent below
                                 under the caption "The Exchange
                                 Offer -- Exchange Agent."


Resales.......................   Based on interpretation by the staff of the
                                 Securities and Exchange Commission, as set
                                 forth in no-action letters issued to third
                                 parties, we believe that the new notes you
                                 receive in the exchange offer may be offered
                                 for resale, resold or otherwise transferred
                                 without compliance with the registration and
                                 prospec-

                                        3


                                 tus delivery provisions of the Securities Act.
                                 However, you will not be able to freely
                                 transfer the new notes if:

                                 - you are our "affiliate," as defined in Rule
                                   405 under the Securities Act;

                                 - you are not acquiring the new notes in the
                                   exchange offer in the ordinary course of your
                                   business;

                                 - you have an arrangement or understanding with
                                   any person to participate in the
                                   distribution, as defined in the Securities
                                   Act, of the new notes you will receive in the
                                   exchange offer; or

                                 - you are a participating broker-dealer that
                                   receives new notes for its own account in the
                                   exchange offer for old notes that were
                                   acquired as a result of market-making or
                                   other trading activities.

                                 If you fall within one of the exceptions listed
                                 above, you must comply with the registration
                                 and prospectus delivery requirements of the
                                 Securities Act in connection with any resale
                                 transaction involving the new notes.

                 CONSEQUENCES OF NOT EXCHANGING YOUR OLD NOTES

     If you do not exchange your old notes in the exchange offer, your old notes
will continue to be subject to the restrictions on transfer described in the
legend on the certificate for your old notes. In general, you may offer or sell
your old notes only:

     - if they are registered under the Securities Act and applicable state
       securities laws;

     - if they are offered or sold under an exemption from registration under
       the Securities Act and applicable state securities laws; or

     - if they are offered or sold in a transaction not subject to the
       Securities Act and applicable state securities laws.

We do not currently intend to register the old notes under the Securities Act.
Under some circumstances, however, holders of the old notes, including holders
who are not permitted to participate in the exchange offer or who may not freely
resell new notes received in the exchange offer, may require us to file, and
cause to become effective, a shelf registration statement covering resales of
old notes by these holders. For more information regarding the consequences of
not tendering your old notes and our obligation to file a shelf registration
statement, see "The Exchange Offer -- Consequences of Exchanging or Failing to
Exchange Old Notes" and "Exchange Offer; Registration Rights."

                      SUMMARY DESCRIPTION OF THE NEW NOTES

     The terms of the new notes and those of the outstanding old notes are
substantially identical, except that the transfer restrictions and registration
rights relating to the old notes do not apply to the new notes. In addition, if


     - the registration statement of which this prospectus is a part is not
       declared effective on or prior to December 26, 2001 or completed on or
       prior to February 24, 2002,


     - we are obligated to file a shelf registration statement and we fail to do
       so prior to the 75th day after the obligation arises or the shelf
       registration statement is not declared effective prior to the 60th day
       after the date of filing, or

     - if the shelf registration statement ceases to be effective or usable,

                                        4


we agree to pay liquidated damages in an amount equal to 0.25% per annum of the
principal amount of old notes for the first 90-day period immediately following
a default, increasing to 0.50% per annum thereafter.

Issuer........................   Transcontinental Gas Pipe Line Corporation

Securities Offered............   $300 million aggregate principal amount of 7%
                                 Series B Notes due 2011. The notes will mature
                                 on August 15, 2011.

Interest......................   Interest on the new notes will accrue at the
                                 rate of 7% per annum and will be payable
                                 semiannually on February 15 and August 15 of
                                 each year, commencing on February 15, 2002.

Ranking.......................   The new notes will be our unsecured and
                                 unsubordinated obligations ranking equally with
                                 our other outstanding unsecured and
                                 unsubordinated indebtedness.

Sinking Fund..................   None.

Optional Redemption...........   We may redeem some or all of the notes at any
                                 time at the "make-whole" price, plus accrued
                                 and unpaid interest, if any, to the redemption
                                 date. See the discussion below under the
                                 caption "Description of Notes -- Optional
                                 Redemption" for more information.

Covenants.....................   The terms of the new notes will restrict our
                                 ability to:

                                 - incur liens on our property;

                                 - enter into any sale and lease-back
                                   transactions; and

                                 - consolidate or merge or sell assets.

                                 These limitations are subject to a number of
                                 important qualifications and exceptions which
                                 are described in "Description of
                                 Notes -- Covenants."

Events of Default.............   If there is an event of default on the notes,
                                 the principal amount of notes plus accrued
                                 interest, if any, may be declared immediately
                                 due and payable in specified circumstances. See
                                 "Description of Notes -- Events of Defaults."

                                  RISK FACTORS

     You should carefully consider all of the information contained in this
prospectus before deciding to tender your old notes in the exchange offer. In
particular, you should carefully review the specific factors described below
under the caption "Risk Factors," which contain important information about us
and the risks that may affect our business.

                                        5


                                  RISK FACTORS

     You should consider carefully the following factors, as well as the other
information set forth or incorporated by reference in the prospectus (including
the risks and other disclosure that are presented in our Annual Report on Form
10-K for the year ended December 31, 2000), before tendering your old notes in
the exchange offer. When we use the term "notes" in this prospectus, the term
includes the old notes and the new notes.

HOLDERS WHO FAIL TO EXCHANGE THEIR OLD NOTES WILL CONTINUE TO BE SUBJECT TO
RESTRICTIONS ON TRANSFER.

     If you do not exchange your old notes for new notes in the exchange offer,
you will continue to be subject to the restrictions on transfer of your old
notes described in the legend on the certificates for your old notes. The
restrictions on transfer of your old notes arise because we issued the old notes
under exemptions from, or in transactions not subject to, the registration
requirements of the Securities Act and applicable state securities laws. In
general, you may only offer or sell the old notes if they are registered under
the Securities Act and applicable state securities laws, or offered and sold
under an exemption from these requirements. We do not plan to register any sale
of the old notes under the Securities Act. For further information regarding the
consequences of tendering your old notes in the exchange offer, see the
discussions below under the captions "The Exchange Offer -- Consequences of
Exchanging or Failing to Exchange Old Notes" and "Material United States Federal
Income Tax Considerations."

     We believe that new notes issued in exchange for old notes pursuant to the
exchange offer may be offered for resale, resold or otherwise transferred by you
without registering the new notes under the Securities Act or delivering a
prospectus so long as you (1) are not one of our "affiliates," which is defined
in Rule 405 of the Securities Act and (2) acquire the new notes in the ordinary
course of your business and, unless you are a broker dealer, you do not have any
arrangement or understanding with any person to participate in the distribution
of the new notes. Our belief is based on interpretations by the SEC's staff in
no-action letters issued to third parties. Please note that the SEC has not
considered our exchange offer in the context of a no-action letter, and the
SEC's staff may not make a similar determination with respect to our exchange
offer.

     Unless you are a broker-dealer, you must acknowledge that you are not
engaged in, and do not intend to engage in, a distribution of the new notes and
that you have no arrangement or understanding to participate in a distribution
of the new notes. If you are one of our affiliates, or you are engaged in,
intend to engage in or have any arrangement or understanding with respect to,
the distribution of new notes acquired in the exchange offer, you (1) should not
rely on our interpretations of the position of the SEC's staff and (2) must
comply with the registration and prospectus delivery requirement of the
Securities Act in connection with any resale transaction.

     If you are a broker-dealer and receive new notes for your own account
pursuant to the exchange offer, you must acknowledge that you will deliver a
prospectus in connection with any resale of the new notes. The letter of
transmittal states that by so acknowledging and by delivering a prospectus, you
will not be deemed to admit that you are an "underwriter" within the meaning of
the Securities Act. If you are a broker-dealer, you may use this prospectus, as
it may be amended or supplemented from time to time, in connection with the
resale of new notes received in exchange for old notes acquired by you as a
result of market-making or other trading activities. For a period of 180 days
after the expiration or termination of the exchange offer, we will make this
prospectus available to any broker-dealer for use in connection with any resale.
See "Plan of Distribution."

     In addition, you may offer or sell the new notes in certain jurisdictions
only if they have been registered or qualified for sale there, or any exemption
from registration or qualification is available and is complied with. Subject to
the limitations specified in the registration rights agreements relating to the
old notes, we will register or qualify the new notes for offer or sale under the
securities laws of any jurisdictions that you reasonably request in writing.
Unless you request that the sale of the new notes be registered or qualified in
a jurisdiction, we currently do not intend to register or qualify the sale of
the new notes in any jurisdiction.
                                        6


YOU MAY FIND IT DIFFICULT TO SELL YOUR NOTES.

     There is no established trading market for the new notes or the old notes.
We do not intend to apply for listing of the new notes on any national
securities exchange or for quotation through The Nasdaq National Market. The
liquidity of any market for the new notes will depend upon the number of holders
of the new notes, our performance, the market for similar securities, the
interest of securities dealers in making a market in the new notes and other
factors relating to us. A liquid trading market may not develop for the new
notes. In addition, to the extent old notes are tendered and accepted in the
exchange offer, the trading market, if any, for the old notes would be adversely
affected.

YOU MUST COMPLY WITH THE EXCHANGE OFFER PROCEDURES IN ORDER TO RECEIVE NEW,
FREELY TRADABLE NOTES.

     Subject to the conditions set forth under "The Exchange Offer -- Conditions
to the Exchange Offer," delivery of new notes in exchange for old notes tendered
and accepted for exchange pursuant to the exchange offer will be made only after
timely receipt by the exchange agent of the following:

     - certificates for old notes or a book-entry confirmation of a book-entry
       transfer of old notes into the exchange agent's account at The Depository
       Trust Company, New York, New York as depository, including an agent's
       message (as defined) if the tendering holder does not deliver a letter of
       transmittal,

     - a completed signed letter of transmittal (or facsimile thereof), with any
       required signature guarantees, or, in the case of a book-entry transfer,
       an agent's message in lieu of the letter of transmittal, and

     - any other documents required by the letter of transmittal.

     Therefore, holders of old notes who would like to tender old notes in
exchange for new notes should be sure to allow enough time for the old notes to
be delivered on time. We are not required to notify you of defects or
irregularities in tenders of old notes for exchange. Old notes that are not
tendered or that are tendered but we do not accept for exchange will, following
consummation of the exchange offer, continue to be subject to the existing
transfer restrictions under the Securities Act and, upon consummation of the
exchange offer, certain registration and other rights under the registration
rights agreement will terminate. See "The Exchange Offer -- Procedures for
Tendering Old Notes" and "The Exchange Offer -- Consequences of Exchanging or
Failing to Exchange Old Notes."

SOME HOLDERS WHO EXCHANGE THEIR NOTES MAY BE DEEMED TO BE UNDERWRITERS.

     If you exchange your old notes in the exchange offer for the purpose of
participating in a distribution of the new notes, you may be deemed to have
received restricted securities and, if so, will be required to comply with the
registration and prospectus delivery requirements of the Securities Act in
connection with any resale transaction.

                                        7


                                USE OF PROCEEDS

     We will not receive any proceeds from the exchange offer. In consideration
for issuing the new notes of a series as contemplated in this prospectus, we
will receive in exchange outstanding old notes of the corresponding series in
like principal amount. We will cancel all old notes surrendered in exchange for
new notes in the exchange offer.

                      RATIOS OF EARNINGS TO FIXED CHARGES

     The following table sets forth our ratios of earnings to fixed charges for
the periods shown:


<Table>
<Caption>
                                                                             NINE MONTHS
                                             YEAR ENDED DECEMBER 31,            ENDED
                                         --------------------------------   SEPTEMBER 30,
                                         1996   1997   1998   1999   2000       2001
                                         ----   ----   ----   ----   ----   -------------
                                                          
Earnings/Fixed Charges.................  3.13   3.34   3.18   4.31   4.62       4.54
</Table>


     For purposes of computing the ratio of earnings to fixed charges, earnings
are divided by fixed charges. "Earnings" represent the aggregate of (a) our
pre-tax income, adjusted for distributed income of equity investees, and (b)
fixed charges, net of interest capitalized. "Fixed charges" represent interest
(whether expensed or capitalized), the amortization of total debt premium,
discount and expense and that portion of rentals considered to be representative
of the interest factor.

                                        8


                     SELECTED FINANCIAL AND OPERATING DATA


     The following income statement and cash flow data for the years 1996
through 2000 and the balance sheet data for 1996 through 2000 have been derived
from our audited financial statements included in our Annual Reports on Form
10-K. The income statement and cash flow data for the nine months ended
September 30, 2000 and September 30, 2001 and balance sheet data at September
30, 2000 and September 30, 2001 have been derived from our unaudited financial
statements included in our Quarterly Reports on Form 10-Q. The selected
financial data should be read in conjunction with such financial statements, the
notes thereto and the related management's narrative analysis of the results of
operations incorporated herein by reference.



<Table>
<Caption>
                                                                                                     NINE MONTHS ENDED
                                                    YEAR ENDED DECEMBER 31,                            SEPTEMBER 30,
                                 --------------------------------------------------------------   -----------------------
                                    1996         1997         1998         1999         2000         2000         2001
                                 ----------   ----------   ----------   ----------   ----------   ----------   ----------
                                                          (IN THOUSANDS, EXCEPT OPERATING DATA)
                                                                                          
INCOME DATA:
Operating revenues.............  $1,594,829   $1,443,299   $1,325,136   $1,543,456   $2,016,236   $1,415,745   $1,184,437
Operating expenses:
  Cost of natural gas sales and
    transportation.............    (884,059)    (705,597)    (567,587)    (741,284)  (1,186,946)    (785,962)    (587,599)
  Operation and maintenance....    (197,953)    (185,175)    (172,769)    (172,912)    (175,479)    (129,083)    (137,639)
  Administrative and general...    (124,094)    (124,145)    (120,632)    (130,027)    (126,147)     (90,583)     (92,959)
  Depreciation and
    amortization...............    (142,301)    (157,883)    (151,387)    (161,480)    (165,877)    (123,205)    (130,062)
  Taxes other than income......     (36,471)     (36,745)     (34,392)     (34,927)     (37,904)     (29,203)     (30,112)
  Other........................      (1,307)      (1,787)      (4,632)      (5,601)     (11,964)      (2,479)     (10,936)
                                 ----------   ----------   ----------   ----------   ----------   ----------   ----------
Operating income...............     208,644      231,967      273,737      297,225      311,919      255,230      195,130
Other income and deduction:
  Interest expense.............     (64,305)     (71,639)     (91,655)     (70,558)     (76,871)     (57,521)     (50,375)
  Interest income..............       6,464        9,263       27,382       25,775       40,059       30,172       14,768
  AFUDC (equity and borrowed)..       6,800        7,771        9,792        5,542       17,522       11,835       19,990
  Equity in earnings of
    unconsolidated
    affiliates.................         382          504          239        3,214        8,117        5,917        6,369
  Other........................      (3,829)      (2,744)      (4,520)      (1,091)       6,861        2,580        9,346
                                 ----------   ----------   ----------   ----------   ----------   ----------   ----------
Income before income taxes and
  extraordinary item...........     154,156      175,122      214,975      260,107      307,607      248,213      195,228
Provision for income taxes.....     (58,613)     (66,594)     (79,281)     (98,920)    (115,806)     (93,430)     (74,413)
                                 ----------   ----------   ----------   ----------   ----------   ----------   ----------
Income before extraordinary
  item.........................      95,543      108,528      135,694      161,187      191,801      154,783      120,815
Extraordinary item-net gain on
  reacquired debt..............          --        2,860           --           --           --           --           --
                                 ----------   ----------   ----------   ----------   ----------   ----------   ----------
Net income.....................  $   95,543   $  111,388   $  135,694   $  161,187   $  191,801   $  154,783   $  120,815
                                 ==========   ==========   ==========   ==========   ==========   ==========   ==========
CASH FLOW DATA:
Net cash provided by operating
  activities...................  $  201,372   $  315,794   $  297,046   $  303,761   $  290,552   $  376,711   $  102,896
Capital expenditures...........     277,900      242,800      303,700      185,400      339,100      245,700      319,400
OPERATING DATA:
Transportation volumes
  (trillion British Thermal
  Units).......................     1,637.7      1,621.1      1,593.9      1,664.6      1,759.1      1,306.8      1,200.1
BALANCE SHEET DATA (AT END OF
  PERIOD):
Net property, plant and
  equipment....................  $3,420,316   $3,499,953   $3,643,382   $3,661,040   $3,809,632   $3,755,838   $4,001,301
Total assets...................   4,059,527    4,267,663    4,531,957    4,664,403    4,810,939    4,868,574    4,845,759
Long-term debt, including
  current maturities...........     780,076      837,832      975,768      975,330      974,850      974,974    1,081,172
Common stockholder's equity....   1,819,214    1,926,347    2,062,041    2,223,228    2,393,413    2,359,956    2,513,179
</Table>


                                        9


                               THE EXCHANGE OFFER

TERMS OF THE EXCHANGE OFFER; PERIOD FOR TENDERING OLD NOTES


     On August 27, 2001, we issued an aggregate principal amount of $300 million
of our 7% Notes due August 15, 2011, that were not registered under the
Securities Act in an offering under Rule 144A of the Securities Act. The old
notes were issued and the new notes will be issued, under an indenture relating
to the notes, dated August 27, 2001, by and among us and Citibank, N.A., as
trustee. We sold the old notes to UBS Warburg LLC, as purchaser, under a
purchase agreement, dated August 22, 2001, by and between UBS Warburg LLC and
us. When we sold the old notes to UBS Warburg LLC we also signed a registration
rights agreement in which we agreed to exchange all the issued and outstanding
old notes for a like principal amount of our new notes. The terms of the new
notes are substantially identical to those of the outstanding old notes, except
that the transfer restrictions and registration rights relating to the old notes
do not apply to the new notes.


     Subject to the terms and conditions set forth in this prospectus and in the
letter of transmittal, we are offering to exchange up to $300 million in
aggregate principal amount of our 7% Series B Notes due August 15, 2011 for an
equal amount of our outstanding 7% Series A Notes due August 15, 2011.


     This prospectus and the enclosed letter of transmittal constitute an offer
to exchange new notes for all of the issued and outstanding old notes. This
exchange offer is being extended to all holders of the old notes. As of the date
of this prospectus, $300 million aggregate principal amount of 7% Series A Notes
due August 15, 2011 are outstanding. This prospectus and the enclosed letter of
transmittal are first being sent on or about December 11, 2001, to all holders
of old notes known to us. Subject to the conditions listed below, we will accept
for exchange all old notes which are properly tendered on or prior to the
expiration of the exchange offer and not withdrawn as permitted below. The
exchange offer will expire at 5:00 p.m., New York City time, on January 10,
2002. However, if we, in our sole discretion, extend the period of time during
which the exchange offer is open, the exchange offer will expire at the latest
time and date to which we extend the exchange offer. Our obligation to accept
old notes for exchange in the exchange offer is subject to the conditions listed
below under the caption "-- Conditions to the Exchange Offer."


     We expressly reserve the right, at any time and from time to time, to
extend the period of time during which the exchange offer is open, and thereby
delay acceptance for exchange of any old notes. If we elect to extend the period
of time during which the exchange offer is open, we will give you oral or
written notice of the extension and delay, as described below. During any
extension of the exchange offer, all old notes previously tendered and not
withdrawn will remain subject to the exchange offer and may be accepted for
exchange by us. We will return to the registered holder, at our expense, any old
notes not accepted for exchange as promptly as practicable after the expiration
or termination of the exchange offer. In the case of an extension, we will issue
a press release or other public announcement no later than 9:00 a.m., New York
City time, on the next business day after the previously scheduled expiration of
the exchange offer.

     We expressly reserve the right to amend or terminate the exchange offer,
and not to accept for exchange any old notes not previously accepted for
exchange if any of the events described below under the caption "-- Conditions
to the Exchange Offer" should occur. We will give you oral or written notice of
any amendment, termination or non-acceptance as promptly as practicable.

     Following completion of the exchange offer, we may, in our sole discretion,
commence one or more additional exchange offers to those old note holders who
did not exchange their old notes for new notes. The terms of these additional
exchange offers may differ from those applicable to this exchange offer. We may
use this prospectus, as amended or supplemented from time to time, in connection
with any additional exchange offers. These additional exchange offers will take
place from time to time until all outstanding old notes have been exchanged for
new notes, subject to the terms and conditions contained in the prospectus and
letter of transmittal we will distribute in connection with the additional
exchange offers.

                                        10


PROCEDURES FOR TENDERING OLD NOTES

     Old notes tendered in the exchange offer must be in denominations of $1,000
principal amount and any integral multiple thereof.

     When you tender your old notes, and we accept the old notes, this will
constitute a binding agreement between you and us subject to the terms and
conditions set forth in this prospectus and the enclosed letter of transmittal.
Unless you comply with the procedures described below under the caption
"-- Guaranteed Delivery Procedures," you must do one of the following on or
prior to the expiration of the exchange offer to participate in the exchange
offer:


     - tender your old notes by sending the certificates for your old notes, in
       proper form for transfer, a properly completed and duly executed letter
       of transmittal, with any required signature guarantees, and all other
       documents required by the letter of transmittal, to Citibank, N.A., as
       exchange agent, at one of the addresses listed below under the caption
       "-- Exchange Agent"; or



     - tender your old notes by using the book-entry procedures described below
       under the caption "-- Book-Entry Transfer" and transmitting a properly
       completed and duly executed letter of transmittal, with any required
       signature guarantees, or an agent's message instead of the letter of
       transmittal, to Citibank, N.A., as exchange agent, at one of the
       addresses listed below under the caption "-- Exchange Agent."


     In order for a book-entry transfer to constitute a valid tender of your old
notes in the exchange offer, the exchange agent must receive a confirmation of
book-entry transfer of your old notes into the exchange agent's account at The
Depository Trust Company prior to the expiration of the exchange offer. The term
"agent's message" means a message, transmitted by The Depository Trust Company
and received by the exchange agent and forming a part of the book-entry
confirmation, which states that The Depository Trust Company has received an
express acknowledgment from you that you have received and have agreed to be
bound by the letter of transmittal. If you use this procedure, we may enforce
the letter of transmittal against you.

     THE METHOD OF DELIVERY OF CERTIFICATES FOR OLD NOTES, LETTERS OF
TRANSMITTAL, AGENT'S MESSAGES AND ALL OTHER REQUIRED DOCUMENTS IS AT YOUR
ELECTION. IF YOU DELIVER YOUR OLD NOTES BY MAIL, WE RECOMMEND REGISTERED MAIL,
PROPERLY INSURED, WITH RETURN RECEIPT REQUESTED. IN ALL CASES, YOU SHOULD ALLOW
SUFFICIENT TIME TO ASSURE TIMELY DELIVERY. DO NOT SEND CERTIFICATES FOR OLD
NOTES, LETTERS OF TRANSMITTAL OR AGENT'S MESSAGES TO US.

     Signatures on a letter of transmittal or a notice of withdrawal, as the
case may be, must be guaranteed unless you are either a registered old note
holder and have not completed the box entitled "Special Issuance Instructions"
or "Special Delivery Instructions" on the letter of transmittal or you are
exchanging old notes for the account of an eligible guarantor institution. An
eligible guarantor institution means:

     - Banks (as defined in Section 3(a) of the Federal Deposit Insurance Act);

     - Brokers, dealers, municipal securities dealers, municipal securities
       brokers, government securities dealers and government securities brokers
       (as defined in the Exchange Act);

     - Credit unions (as defined in Section 19B(1)(A) of the Federal Reserve
       Act);

     - National securities exchanges, registered securities associations and
       clearing agencies (as these terms are defined in the Exchange Act); and

     - Savings associations (as defined in Section 3(b) of the Federal Deposit
       Insurance Act).

     If signatures on a letter of transmittal or a notice of withdrawal are
required to be guaranteed, the guarantor must be an eligible guarantor
institution. If you plan to sign the letter of transmittal but you are not the
registered holder of the old notes -- which term, for this purpose, includes any
participant in The Depository Trust Company's system whose name appears on a
security position listing as the owner of the

                                        11


old notes -- you must have the old notes signed by the registered holder of the
old notes and that signature must be guaranteed by an eligible guarantor
institution. You may also send a separate instrument of transfer or exchange
signed by the registered holder and guaranteed by an eligible guarantor
institution, but that instrument must be in a form satisfactory to us in our
sole discretion. In addition, if a person or persons other than the registered
holder or holders of old notes signs the letter of transmittal, certificates for
the old notes must be endorsed or accompanied by appropriate bond powers, in
either case signed exactly as the name or names of the registered holder or
holders that appear on the certificates for old notes.


     All questions as to the validity, form, eligibility -- including time of
receipt -- and acceptance of old notes tendered for exchange will be determined
by us in our sole discretion. Our determination will be final and binding. We
reserve the absolute right to reject any and all tenders of old notes improperly
tendered or to not accept any old notes, the acceptance of which might be
unlawful as determined by us or our counsel. We also reserve the absolute right
to waive any defects or irregularities or conditions of the exchange offer as to
any old notes either before or after the expiration of the exchange
offer -- including the right to waive the ineligibility of any holder who seeks
to tender old notes in the exchange offer. Our interpretation of the terms and
conditions of the exchange offer as to any particular old notes either before or
after the expiration of the exchange offer -- including the terms and conditions
of the letter of transmittal and the accompanying instructions -- will be final
and binding. Unless waived, any defects or irregularities in connection with
tenders of old notes for exchange must be cured within a reasonable period of
time, as determined by us. Neither we, Citibank, N.A., as exchange agent, nor
any other person has any duty to give notification of any defect or irregularity
with respect to any tender of old notes for exchange, nor will we have any
liability for failure to give this notification.


     If you are a trustee, executor, administrator, guardian, attorney-in-fact,
officer of a corporation, or act in a similar fiduciary or representative
capacity, and wish to sign the letter of transmittal or any certificates for old
notes or bond powers, you must indicate your status when signing. If you are
acting in any of these capacities, you must submit proper evidence satisfactory
to us of your authority to so act unless we waive this requirement.

     By tendering your old notes, you represent to us:

     - that you are not our "affiliate" as defined in Rule 405 under the
       Securities Act;

     - that any new notes you receive in the exchange offer are being acquired
       by you in the ordinary course of your business;

     - that at the time of the commencement of the exchange offer, you do not
       have any arrangement or understanding with any person to participate in
       the distribution of the new notes, as defined in the Securities Act, in
       violation of the Securities Act;

     - if you are not a participating broker-dealer, that you are not engaged
       in, and do not intend to engage in, the distribution of the new notes, as
       defined in the Securities Act; and

     - if you are a participating broker-dealer, that you will receive the new
       notes for your own account in exchange for old notes that were acquired
       by you as a result of your market-making or other trading activities and
       that you will deliver a prospectus in connection with any resale of the
       new notes you receive. As used in this prospectus, a "participating
       broker-dealer" is a broker-dealer that receives new notes for its own
       account in exchange for old notes that it acquired as a result of
       market-making or other trading activities. The SEC has taken the position
       that participating broker-dealers may fulfill their prospectus delivery
       requirements with respect to resales of the new notes -- other than a
       resale of an unsold allotment from the original sale of the old
       notes -- by delivering this prospectus to prospective purchasers. For
       further information regarding participating broker-dealers and the
       prospectus delivery requirement, see "Plan of Distribution."

                                        12


ACCEPTANCE OF OLD NOTES FOR EXCHANGE; DELIVERY OF NEW NOTES


     Upon satisfaction or waiver of all of the conditions to the exchange offer,
we will accept, promptly after the expiration of the exchange offer, all old
notes properly tendered and will issue the new notes promptly after the
acceptance of the old notes. For purposes of the exchange offer, we will be
deemed to have accepted properly tendered old notes for exchange when, as and if
we have given oral or written notice of acceptance to Citibank, N.A., as
exchange agent, with written confirmation of any oral notice to be given
promptly after any oral notice.


     For each outstanding note accepted for exchange in the exchange offer, the
holder of the old note will receive a new note having a principal amount at
maturity equal to that of the surrendered old note. Interest on the new note
will accrue:

     - from the later of the last date to which interest was paid on the old
       note surrendered in the exchange for the new note or if the old note is
       surrendered for exchange on a date in a period which includes the record
       date for an interest payment date to occur on or after the date of the
       exchange and as to which interest will be paid, the date to which
       interest will be paid on such interest payment date; or

     - if no interest has been paid on the old note, from and including August
       27, 2001.

     Payments of interest, if any, on old notes that were exchanged for new
notes will be made on each February 15 and August 15 during which the new notes
are outstanding to the person who, at the close of business on the record date
next preceding the interest payment date, is the registered holder of the old
notes if the record date occurs prior to the exchange, or is the registered
holder of the new notes if the record date occurs on or after the date of the
exchange, even if the old notes are cancelled after the record date and on or
before the interest payment date.

     In addition, if


     - the registration statement of which this prospectus is a part is not
       declared effective on or prior to December 26, 2001 or the exchange offer
       is not completed on or prior to February 24, 2002,


     - we are obligated to file a shelf registration statement and we fail to do
       so prior to the 75th day after the obligation arises or the shelf
       registration statement is not declared effective prior to the 60th day
       after the date of filing, or

     - if the shelf registration statement ceases to be effective or usable,

(each a "Registration Default") then we agree to pay each holder of transfer
restricted securities affected thereby liquidated damages in an amount equal to
0.25% per annum of the principal amount of transfer restricted securities held
by such holder for the first 90-day period immediately following the occurrence
of a Registration Default, increasing to 0.50% per annum thereafter, from and
including the date on which any such registration default shall occur. We shall
not be required to pay liquidated damages for more than one Registration Default
at any given time. Following the cure of all Registration Defaults, the accrual
of liquidated damages will cease. For further information regarding liquidated
damages and registration rights, see "Exchange Offer; Registration Rights."


     In all cases, the issuance of new notes in exchange for old notes will be
made only after Citibank, N.A., as exchange agent, timely receives either
certificates for all physically tendered old notes, in proper form for transfer,
or a book-entry confirmation of transfer of the old notes into the exchange
agent's account at The Depository Trust Company, as the case may be, a properly
completed and duly executed letter of transmittal, with any required signature
guarantees, and all other required documents or, in the case of a book-entry
confirmation, a properly completed and duly executed letter of transmittal, with
any required signature guarantees, or an agent's message instead of the letter
of transmittal. If for any reason we do not accept any tendered old notes or if
old notes are submitted for a greater principal amount than the holder desires
to exchange, we will return the unaccepted or non-exchanged old notes without
expense to the registered holder. In the case of old notes tendered by
book-entry transfer into the exchange agent's


                                        13


account at The Depository Trust Company by using the book-entry procedures
described below, the unaccepted or non-exchanged old notes will be credited to
an account maintained with The Depository Trust Company. Any old notes to be
returned to the holder will be returned as promptly as practicable after the
expiration or termination of the exchange offer.

BOOK-ENTRY TRANSFER

     Except as set forth below, the new notes will initially be issued in the
form of one or more registered new notes in global form without interest
coupons. Each global note will be deposited with the trustee as custodian for,
and registered in the name of a nominee of, The Depository Trust Company.

     Ownership of beneficial interests in a global note will be limited to
persons who have accounts with The Depository Trust Company ("participants") or
persons who hold interests through participants. Ownership of beneficial
interests in a global note will be shown on, and the transfer of that ownership
will be effected only through, records maintained by The Depository Trust
Company or its nominee, with respect to interests of participants, and the
records of participants, with respect to interests of persons other than
participants. Holders may hold their interests in a global note directly through
The Depository Trust Company if they are participants in such system, or
indirectly through organizations which are participants in such system.

     So long as The Depository Trust Company, or its nominee, is the registered
owner or holder of a global note, The Depository Trust Company or such nominee,
as the case may be, will be considered the sole owner or holder of the notes
represented by such global note for all purposes under the indenture and the
notes. No beneficial owner of an interest in a global note will be able to
transfer that interest except in accordance with The Depository Trust Company's
applicable procedures, in addition to those provided for under the indenture.

     Payments of the principal of, and interest on, a global note will be made
to The Depository Trust Company or its nominee, as the case may be, as the
registered owner thereof. Neither we, the trustee nor any Paying Agent will have
any responsibility or liability for any aspect of the records relating to or
payments made on account of beneficial ownership interests in a global note or
for maintaining, supervising or reviewing any records relating to such
beneficial ownership interests.

     We expect that The Depository Trust Company or its nominee, upon receipt of
any payment of principal or interest in respect of a global note, will credit
participants' accounts with payments in amounts proportionate to their
respective beneficial interests in the principal amount of such global note as
shown on the records of The Depository Trust Company or its nominee. We also
expect that payments by participants to owners of beneficial interests in such
global note held through such participants will be governed by standing
instructions and customary practices, as is now the case with securities held
for the accounts of customers registered in the names of nominees for such
customers. Such payments will be the responsibility of such participants.

     Transfers between participants in The Depository Trust Company will be
effected in the ordinary way in accordance with The Depository Trust Company
rules and will be settled in same-day funds.

     We expect that The Depository Trust Company will take any action permitted
to be taken by a holder of old notes, including the presentation of old notes
for exchange as described below, only at the direction of one or more
participants to whose account with The Depository Trust Company interests in a
global note are credited and only in respect of such portion of the aggregate
principal amount of old notes as to which such participant or participants has
or have given such direction. However, if there is an Event of Default under the
notes, The Depository Trust Company will exchange the global note for notes in
registered form without interest coupons ("certificated notes"), which it will
distribute to its participants.

     We understand that The Depository Trust Company is a limited purpose trust
company organized under the laws of the State of New York, a "banking
organization" within the meaning of New York Banking Law, a member of the
Federal Reserve System, a "clearing corporation" within the meaning of the
Uniform Commercial Code and a "Clearing Agency" registered pursuant to the
provisions of

                                        14


Section 17A of the Securities and Exchange Act of 1934, as amended. The
Depository Trust Company was created to hold securities for its participants and
facilitate the clearance and settlement of securities transactions between
participants through electronic book-entry changes in accounts of its
participants, thereby eliminating the need for physical movement of
certificates. Indirect access to The Depository Trust Company system is
available to others such as banks, brokers, dealers and trust companies and
certain other organizations that clear through or maintain a custodial
relationship with a participant, either directly or indirectly ("indirect
participants").

     Although The Depository Trust Company is expected to follow the foregoing
procedures in order to facilitate transfers of interests in global notes among
participants of The Depository Trust Company, it is under no obligation to
perform or continue to perform such procedures, and such procedures may be
discontinued at any time. Neither we nor the trustee will have any
responsibility for the performance by The Depository Trust Company or its
participants or indirect participants of their respective obligations under the
rules and procedures governing their operations.

     If The Depository Trust Company is at any time unwilling or unable to
continue as a depositary for the global notes and we do not appoint a successor
depositary within 90 days, we will issue certificated notes in exchange for the
global notes. Holders of an interest in a global note may receive certificated
notes in accordance with The Depository Trust Company's rules and procedures in
addition to those provided for under the indenture.

GUARANTEED DELIVERY PROCEDURES

     If you are a registered holder of the old notes and wish to tender your old
notes, but

     - the certificates for the old notes are not immediately available,


     - time will not permit your certificates for the old notes or other
       required documents to reach Citibank, N.A., as exchange agent, before the
       expiration of the exchange offer, or


     - the procedure for book-entry transfer cannot be completed before the
       expiration of the exchange offer,

     then you may effect a tender of your old notes if:

     - the tender is made through an eligible guarantor institution;

     - prior to the expiration of the exchange offer, the exchange agent
       receives from an eligible guarantor institution a properly completed and
       duly executed notice of guaranteed delivery, substantially in the form we
       have provided, setting forth your name and address, and the amount of old
       notes you are tendering and stating that the tender is being made by
       notice of guaranteed delivery. These documents may be sent by overnight
       courier, registered or certified mail or facsimile transmission. If you
       elect to use this procedure, you must also guarantee that within three
       New York Stock Exchange, Inc. trading days after the date of execution of
       the notice of guaranteed delivery, the certificates for all physically
       tendered old notes, in proper form for transfer, or a book-entry
       confirmation of transfer of the old notes into the exchange agent's
       account at The Depository Trust Company, as the case may be, a properly
       completed and duly executed letter of transmittal, with any required
       signature guarantees, and all other required documents or, in the case of
       a book-entry confirmation, a properly completed and duly executed letter
       of transmittal, with any required signature guarantees, or an agent's
       message instead of the letter of transmittal, will be deposited by the
       eligible guarantor institution with the exchange agent; and

     - the exchange agent receives the certificates for all physically tendered
       old notes, in proper form for transfer, or a book-entry confirmation of
       transfer of the old notes into the exchange agent's account at The
       Depository Trust Company, as the case may be, a properly completed and
       duly executed letter of transmittal, with any required signature
       guarantees, and all other required documents or, in the case of a
       book-entry confirmation, a properly completed and duly executed letter of
       transmittal, with any required signature guarantees, or an agent's
       message instead of the letter of transmittal, in
                                        15


       each case, within three New York Stock Exchange, Inc. trading days after
       the date of execution of the notice of guaranteed delivery.

WITHDRAWAL RIGHTS

  You may withdraw tenders of old notes at any time prior to the expiration of
  the exchange offer.


     For a withdrawal to be effective, a written notice of withdrawal must be
received by Citibank, N.A., as exchange agent, prior to the expiration of the
exchange offer at one of the addresses listed below under the caption
"-- Exchange Agent." Any notice of withdrawal must specify the name of the
person who tendered the old notes to be withdrawn, identify the old notes to be
withdrawn, including the principal amount of the old notes, and, where
certificates for old notes have been transmitted, specify the name in which the
old notes are registered, if different from that of the withdrawing holder. If
certificates for old notes have been delivered or otherwise identified to the
exchange agent, then, prior to the release of the certificates, the withdrawing
holder must also submit the serial numbers of the particular certificates to be
withdrawn and a signed notice of withdrawal with signatures guaranteed by an
eligible guarantor institution unless the holder is an eligible guarantor
institution. If old notes have been tendered using the procedure for book-entry
transfer described above, any notice of withdrawal must specify the name and
number of the account at The Depository Trust Company to be credited with the
withdrawn old notes and otherwise comply with the procedures of the book-entry
transfer facility. All questions as to the validity, form and
eligibility -- including time of receipt -- of these notices will be determined
by us. Our determination will be final and binding. Any old notes so withdrawn
will be deemed not to have been validly tendered for exchange for purposes of
the exchange offer. Any old notes which have been tendered for exchange but
which are not exchanged for any reason will be returned to the registered holder
without cost to that holder as soon as practicable after withdrawal,
non-acceptance of tender or termination of the exchange offer. In the case of
old notes tendered by book-entry transfer into the exchange agent's account at
The Depository Trust Company by using the book-entry transfer procedures
described above, any withdrawn or unaccepted old notes will be credited to the
tendering holder's account at The Depository Trust Company. Properly withdrawn
old notes may be retendered at any time on or prior to the expiration of the
exchange offer by following one of the procedures described above under
"-- Procedures for Tendering Old Notes."


CONDITIONS TO THE EXCHANGE OFFER

     Notwithstanding any other provision of the exchange offer, we will not be
required to accept any old notes for exchange or to issue any new notes in
exchange for old notes, and we may terminate or amend the exchange offer if, at
any time before the acceptance of the old notes for exchange or the exchange of
new notes for old notes, any of the following events occurs:

     - the exchange offer is determined to violate any applicable law or any
       applicable interpretation of the staff of the SEC;

     - an action or proceeding is pending or threatened in any court or by any
       governmental agency that might materially impair our ability to proceed
       with the exchange offer;

     - any material adverse development occurs in any existing legal action or
       proceeding involving us;

     - we do not receive any governmental approval we deem necessary for the
       completion of the exchange offer; or

     - any of the conditions precedent to our obligations under the registration
       rights agreement are not fulfilled.

     These conditions are for our benefit only and we may assert them regardless
of the circumstances giving rise to any condition. We may also waive any
condition in whole or in part at any time in our sole discretion. Our failure at
any time to exercise any of the foregoing rights will not constitute a waiver of
that right and each right is an ongoing right that we may assert at any time.

                                        16


     In addition, we will not accept any old notes for exchange or issue any new
notes in exchange for old notes, if at the time a stop order is threatened or in
effect which relates to:

     - the registration statement of which this prospectus forms a part; or

     - the qualification under the Trust Indenture Act of 1939 of the indenture
       under which the old notes were issued and the new notes will be issued.

EXCHANGE AGENT


     We have appointed Citibank, N.A. as the exchange agent for the exchange
offer. All completed letters of transmittal and agent's messages should be
directed to the exchange agent at one of the addresses listed below. Questions
and requests for assistance, requests for additional copies of this prospectus
or the letter of transmittal, agent's messages and requests for notices of
guaranteed delivery should be directed to the exchange agent at one of the
following addresses:



<Table>
                                                         
By Regular or Certified Mail:          By Facsimile:           By Overnight Courier or Hand:
                                    (Eligible Guarantor
                                    Institutions Only)
       Citibank, N.A.                 Citibank, N.A.                  Citibank, N.A.
 111 Wall Street, 15th Floor    111 Wall Street, 15th Floor     111 Wall Street, 15th Floor
     New York, NY 10043             New York, NY 10043              New York, NY 10043
 Attention: Citibank Agency     Attention: Citibank Agency      Attention: Citibank Agency
      & Trust Services               & Trust Services                & Trust Services
                                    Fax: (212) 825-3483
</Table>


                            To Confirm by Telephone
                            or for Information Call:


                                 Citibank, N.A.

                          111 Wall Street, 15th Floor
                               New York, NY 10043

                  Attention: Citibank Agency & Trust Services

                             Phone: 1-800-422-2066

     Delivery of a letter of transmittal or agent's message to an address other
than the address listed above or transmission of instructions by facsimile other
than as set forth above is not valid delivery of the letter of transmittal or
agent's message.

FEES AND EXPENSES


     The principal solicitation is being made by mail by Citibank, N.A., as
exchange agent. We will pay the exchange agent customary fees for its services,
reimburse the exchange agent for its reasonable out-of-pocket expenses incurred
in connection with the provision of these services and pay other registration
expenses, including fees and expenses of the trustee under the indenture
relating to the notes, filing fees, blue sky fees and printing and distribution
expenses. We will not make any payment to brokers, dealers or others soliciting
acceptances of the exchange offer.


     Additional solicitation may be made by telephone, facsimile or in person by
our and our affiliates' officers and regular employees and by persons so engaged
by the exchange agent.

TRANSFER TAXES

     You will not be obligated to pay any transfer taxes in connection with the
tender of old notes in the exchange offer unless you instruct us to register new
notes in the name of, or request that old notes not tendered or not accepted in
the exchange offer be returned to, a person other than the registered tendering
holder. In those cases, you will be responsible for the payment of any
applicable transfer tax.

                                        17


CONSEQUENCES OF EXCHANGING OR FAILING TO EXCHANGE OLD NOTES

     If you do not exchange your old notes for new notes in the exchange offer,
your old notes will continue to be subject to the provisions of the indenture
relating to the notes regarding transfer and exchange of the old notes and the
restrictions on transfer of the old notes described in the legend on your
certificates. These transfer restrictions are required because the old notes
were issued under an exemption from, or in transactions not subject to, the
registration requirements of the Securities Act and applicable state securities
laws. In general, the old notes may not be offered or sold, unless registered
under the Securities Act, except under an exemption from, or in a transaction
not subject to, the Securities Act and applicable state securities laws. We do
not plan to register the old notes under the Securities Act. Based on
interpretations by the staff of the SEC, as set forth in no-action letters
issued to third parties, we believe that the new notes you receive in the
exchange offer may be offered for resale, resold or otherwise transferred
without compliance with the registration and prospectus delivery provisions of
the Securities Act. However, you will not be able to freely transfer the new
notes if:

     - you are our "affiliate," as defined in Rule 405 under the Securities Act;

     - you are not acquiring the new notes in the exchange offer in the ordinary
       course of your business;

     - you have an arrangement or understanding with any person to participate
       in the distribution of the new notes, as defined in the Securities Act,
       you will receive in the exchange offer; or

     - you are a participating broker-dealer.

     We do not intend to request the SEC to consider, and the SEC has not
considered, the exchange offer in the context of a similar no-action letter. As
a result, we cannot guarantee that the staff of the SEC would make a similar
determination with respect to the exchange offer as in the circumstances
described in the no-action letters discussed above. Each holder, other than a
broker-dealer, must acknowledge that it is not engaged in, and does not intend
to engage in, a distribution of new notes and has no arrangement or
understanding to participate in a distribution of new notes. If you are our
affiliate, are engaged in or intend to engage in a distribution of the new notes
or have any arrangement or understanding with respect to the distribution of the
new notes you will receive in the exchange offer, you

     - may not rely on the applicable interpretations of the staff of the SEC
       and

     - must comply with the registration and prospectus delivery requirements of
       the Securities Act in connection with any resale transaction involving
       the new notes. If you are a participating broker-dealer, you must
       acknowledge that you will deliver a prospectus in connection with any
       resale of the new notes. In addition, to comply with state securities
       laws, you may not offer or sell the new notes in any state unless they
       have been registered or qualified for sale in that state or an exemption
       from registration or qualification is available and is complied with. The
       offer and sale of the new notes to "qualified institutional buyers" -- as
       defined in Rule 144A of the Securities Act -- is generally exempt from
       registration or qualification under state securities laws. We do not plan
       to register or qualify the sale of the new notes in any state where an
       exemption from registration or qualification is required and not
       available.

                                        18


                              DESCRIPTION OF NOTES


     The old notes were issued and the new notes will be issued under an
indenture dated as of August 27, 2001 between us and Citibank, N.A., as Trustee.
This summary is qualified in its entirety by reference to the indenture, a copy
of which is available from us upon request.



     The old notes were and the new notes will be our unsecured and
unsubordinated obligations ranking equally with our other outstanding unsecured
and unsubordinated indebtedness. At September 30, 2001, we had outstanding
approximately $1,083 million of unsecured and unsubordinated indebtedness. The
indenture contains no restrictions on the amount of additional secured or
unsecured indebtedness that we may issue.


TERMS AND CONDITIONS OF THE NOTES

     The notes will mature on August 15, 2011. The notes will bear interest from
their date of issuance at the rate of 7% per annum. Interest will be payable
semi-annually on February 15 and August 15 of each year, beginning February 15,
2002, to the person in whose names the notes are registered at the close of
business on the preceding February 1 and August 1, respectively, subject to
certain exceptions. Interest on the notes will be computed on the basis of a
360-day year comprised of twelve 30-day months.

     We may, without the consent of the holders of the notes, issue additional
notes having the same ranking and the same interest rate, maturity and other
terms as the notes. Any additional notes will, together with the previously
outstanding notes, constitute a single series of the notes under the indenture.
No additional notes may be issued if an event of default has occurred with
respect to the notes.

     The notes will initially be issued only in registered, book-entry form, in
denominations of $1,000 and any integral multiples of $1,000 as described under
"The Exchange Offer -- Book-Entry Transfer." We will issue global notes in
denominations that together equal the total principal amount of the outstanding
notes.

OPTIONAL REDEMPTION

     The notes will be redeemable, in whole at any time, or in part, from time
to time, at our option, at a redemption price equal to the greater of:

     - 100% of the principal amount of the notes then outstanding to be
       redeemed, or

     - the sum of the present values of the remaining scheduled payments of
       principal and interest thereon from the redemption date to the maturity
       date computed by discounting such payments to the redemption date on a
       semi-annual basis (assuming a 360-day year consisting of twelve 30-day
       months) at a rate equal to the sum of 25 basis points plus the Adjusted
       Treasury Rate on the third business day prior to the redemption date, as
       calculated by an Independent Investment Banker.

     "Adjusted Treasury Rate" means:

     - the yield, under the heading which represents the average for the
       immediately preceding week, appearing in the most recently published
       statistical release designated "H.15(519)" or any successor publication
       which is published weekly by the Board of Governors of the Federal
       Reserve System and which contains yields on actively traded U.S. Treasury
       securities adjusted to constant maturity under the caption "Treasury
       Constant Maturities," for the maturity corresponding to the Comparable
       Treasury Issue (if no maturity is within three months before or after the
       remaining term of the notes, yields for the two published maturities most
       closely corresponding to the Comparable Treasury Issue will be determined
       and the Adjusted Treasury Rate will be interpolated or extrapolated from
       such yields on a straight line basis, rounding to the nearest month); or

     - if such release (or any successor release) is not published during the
       week preceding the calculation date or does not contain such yields, the
       rate per annum equal to the semiannual equivalent yield to maturity of
       the Comparable Treasury Issue, calculated using a price for the
       Comparable Treasury

                                        19


       Issue (expressed as a percentage of its principal amount) equal to the
       Comparable Treasury Price for such redemption date.

     "Comparable Treasury Issue" means the U.S. Treasury security selected by an
Independent Investment Banker as having a maturity comparable to the remaining
term of the notes that would be utilized, at the time of selection and in
accordance with customary financial practice, in pricing new issues of corporate
debt securities of comparable maturity to the remaining term of the notes or,
if, in the reasonable judgment of the Independent Investment Banker, there is no
such security, then the Comparable Treasury Issue will mean the U.S. Treasury
security or securities selected by an Independent Investment Banker as having an
actual or interpolated maturity or maturities comparable to the remaining term
of the notes.

     "Comparable Treasury Price" means (1) the average of five Reference
Treasury Dealer Quotations for the applicable redemption date, after excluding
the highest and lowest Reference Treasury Dealer Quotations, or (2) if the
Independent Investment Banker obtains fewer than five such Reference Treasury
Dealer Quotations, the average of all such quotations.

     "Independent Investment Banker" means UBS Warburg LLC and any successor
firm selected by us, or if any such firm is unwilling or unable to serve as
such, an independent investment and banking institution of national standing
appointed by us.

     "Reference Treasury Dealer Quotations" means the average, as determined by
the Independent Investment Banker, of the bid and asked prices for the
Comparable Treasury Issue (expressed in each case as a percentage of its
principal amount) quoted in writing to the Independent Investment Banker and the
Trustee at 5:00 p.m., New York City time, on the third business day preceding
such redemption date.

     We will mail notice of redemption at least 30 days but not more than 60
days before the applicable redemption date to each holder of the notes to be
redeemed. If we elect to partially redeem the notes, the Trustee will select in
a fair and appropriate manner the notes to be redeemed.

     Upon the payment of the redemption price, plus accrued and unpaid interest,
if any, and liquidated damages, if any, to the date of redemption, interest will
cease to accrue on and after the applicable redemption date on the notes or
portions thereof called for redemption.

COVENANTS

     Liens.  The indenture refers to any of our instruments securing
indebtedness, such as a mortgage, pledge, lien, security interest or encumbrance
on any of our property, as a "mortgage." The indenture further provides that,
subject to certain exceptions, we will not, nor will we permit any subsidiary
to, issue, assume or guarantee any indebtedness secured by a mortgage unless we
provide equal and proportionate security for the notes. Among these exceptions
are:

     - purchase money mortgages;

     - preexisting mortgages on any property acquired or constructed by us or a
       subsidiary;

     - mortgages created within one year after completion of such acquisition or
       construction or within one year of commencement of full operation of such
       property;

     - mortgages created on any contract for the sale of products or services
       related to the operation or use of any property acquired or constructed
       within one year after the later of completion of such acquisition or
       construction or commencement of full operation of such property;

     - mortgages on property of a subsidiary existing at the time it became our
       subsidiary; and

     - mortgages, other than as specifically excepted, in an aggregate amount
       which, at the time of, and after giving effect to, the incurrence does
       not exceed five percent of our Consolidated Net Tangible Assets, as
       defined in the indenture.

                                        20


     Limitation on Sale and Lease-Back Transactions.  We will not and we will
not permit any of our subsidiaries to, enter into any arrangement with any
person providing for the leasing by us or any of our subsidiaries of any
Principal Property, acquired or placed into service more than 180 days prior to
such arrangement (except for leases of three years or less), whereby such
property has been or is to be sold or transferred by us or any of our
subsidiaries to such person (any such transaction being referred to as a "Sale
and Lease-Back Transaction"), unless:

     - we or any of our subsidiaries would, at the time of entering into a Sale
       and Lease-Back Transaction, be entitled to incur indebtedness secured by
       a mortgage on the property to be leased in an amount at least equal to
       the Attributable Debt in respect of such transaction without equally and
       ratably securing the Securities pursuant to the covenant described above
       under "-- Liens"; or

     - we shall covenant that we will apply an amount equal to the net proceeds
       from the sale of the Principal Property so leased to the retirement
       (other than any mandatory retirement) of our Funded Indebtedness within
       90 days of the effective date of any such Sale and Lease-Back
       Transaction, provided that the amount to be applied to the retirement of
       our Funded Indebtedness shall be reduced by (a) the principal amount of
       any notes delivered by us to the Trustee within 90 days after such Sale
       and Lease-Back Transaction for retirement and cancellation, and (b) the
       principal amount of Funded Indebtedness, other than notes, voluntarily
       retired by us within 90 days following such Sale and Lease-Back
       Transaction,

provided, further, this covenant shall not apply to, and there shall be excluded
from Attributable Debt in any computation under this covenant, Attributable Debt
with respect to any Sale and Lease-Back Transaction if:

     - such Sale and Lease-Back Transaction is entered into in connection with
       transactions which are part of an industrial development or pollution
       control financing or,

     - the only parties involved in such Sale and Lease-Back Transaction are us
       and/or any of our subsidiaries.

     Notwithstanding the foregoing, we and our subsidiaries may enter into,
create, assume and suffer to exist Sale and Lease-Back Transactions, not
otherwise permitted, if at the time of, and after giving effect to, such Sale
and Lease-Back Transaction, our total consolidated Attributable Debt does not
exceed five percent of our Consolidated Net Tangible Assets.

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

     "Consolidated Net Tangible Assets" means the total assets appearing on a
consolidated balance sheet of us and our consolidated subsidiaries, less:

     (1) intangible assets, unamortized debt discount and expense and stock
         expense and other deferred debits;

     (2) all current and accrued liabilities (other than consolidated Funded
         Indebtedness and capitalized rentals or leases); deferred credits
         (other than deferred investment tax credits), deferred gains and
         deferred income and billings recorded as revenues deferred pending the
         outcome of a rate proceeding (less applicable income taxes) to the
         extent refunds thereof shall not have been finally determined; and

     (3) all reserves (other than for deferred federal income taxes arising from
         timing differences) not already deducted from assets.

     "Funded Indebtedness" means any indebtedness which matures more than one
year after the date as of which Funded Indebtedness is being determined less any
such Indebtedness as will be retired through

                                        21


or by means of any deposit or payment required to be made within one year from
such date under any prepayment provision, sinking fund, purchase fund or
otherwise.

     "Principal Property" means any natural gas pipeline, gathering property or
natural gas processing plant located in the United States, except any such
property that in the opinion of our board of directors is not of material
importance to the total business conducted by us and our consolidated
subsidiaries. "Principal Property" shall not include (i) the production or
proceeds from production of gas processing plants or natural gas or petroleum
products in any pipeline or storage field and (ii) any property acquired or
constructed by us or any of our subsidiaries after December 31, 1996.

     Consolidation, Merger, Conveyance of Assets.  The indenture provides, in
general, that we will not consolidate with or merge into any other entity or
convey, transfer or lease our properties and assets substantially as an entirety
to any person, unless:

     - the corporation, limited liability company, limited partnership, joint
       stock company or trust formed by such consolidation or into which we are
       merged or the person which acquires such assets expressly assumes our
       obligations under the indenture and the notes; and

     - immediately after giving effect to such transaction, no event of default,
       and no event which, after notice or lapse of time or both, would become
       an event of default, shall have happened and be continuing.

     Event Risk.  Except for the limitations on liens and consolidations,
mergers and conveyance of assets described above, neither the indenture nor the
notes contain any covenants or other provisions designed to afford holders of
the notes protection in the event of a highly leveraged transaction or change of
control involving us or any restrictions on the amount of additional
indebtedness that we may issue.

MODIFICATION OF THE INDENTURE

     Without the consent of any holder, we and the Trustee may amend or
supplement the indenture or the notes to:

     - cure any ambiguity, omission, defect or inconsistency;

     - comply with the indenture in the case of the merger, consolidation or
       sale or other disposition of all or substantially all of our assets;

     - provide for uncertificated notes in addition to or in place of
       certificated notes;

     - add any additional events of default;

     - provide for the acceptance of a successor trustee;

     - secure the notes pursuant to the requirements under the indenture;

     - comply with any requirements in order to effect or maintain the
       qualification of the indenture under the Trust Indenture Act of 1939;

     - comply with any requirements of the SEC in connection with qualifying the
       indenture under the Trust Indenture Act of 1939;

     - add to our covenants for the benefit of the holders of notes or surrender
       any power conferred upon us; or

     - make any change that does not adversely affect the rights of any holder
       of notes in any material respect.

                                        22


     We and the Trustee may take the following actions with the consent of the
holders of at least a majority in principal amount of the notes then
outstanding:

     - add any provisions to the indenture;

     - change in any manner the indenture;

     - eliminate any of the provisions of the indenture; and

     - modify in any way the rights of the holders of the notes.

     These changes must conform to the Trust Indenture Act of 1939. In addition,
without the consent of each holder affected, we may not:

     - reduce the percentage of principal amount of notes whose holders must
       consent to an amendment, supplement or waiver;

     - reduce the rate of or change the time for payment of interest, including
       default interest, on any note;

     - reduce the principal of or change the fixed maturity of any note or alter
       the premium or other provisions with respect to redemption;

     - make any note payable in money or in a place other than that stated in
       the note;

     - impair the right to institute suit for the enforcement of any payment of
       principal of, or premium, if any, or interest on any note;

     - make any change in the percentage of principal amount of notes necessary
       to waive compliance with certain provisions of the indenture; or

     - waive a continuing default or event of default in the payment of
       principal of, or premium, if any, or interest on the notes.

EVENTS OF DEFAULT

     In general, the indenture defines an event of default with respect to the
notes as being:

     - default in payment of any principal of the notes, either at maturity,
       upon any redemption, by declaration or otherwise;

     - default for 30 days in payment of any interest on the notes unless
       otherwise provided;

     - default for 90 days after written notice in the observance or performance
       of any covenant or warranty in the notes or the indenture other than:

        - default in or breach of a covenant which is dealt with otherwise below
          or

        - if certain conditions are met, if the events of default described in
          this clause are the result of changes in generally accepted accounting
          principles; or

     - certain events of our bankruptcy, insolvency or reorganization.

     In general, the indenture provides that if an event of default described in
the first three clauses above occurs, the Trustee or the holders of the notes
may then declare the entire principal of all the notes and the interest accrued
on such principal to be due and payable immediately. Such a declaration by the
holders requires the approval of at least 25 percent in principal amount of the
notes then outstanding.

     Upon certain conditions, the holders of a majority in aggregate principal
amount of the notes then outstanding may annul such declarations and waive the
past defaults. However, the majority holders may not annul or waive a continuing
default in payment of principal of, premium, if any, or interest on the notes.

                                        23


     The indenture provides that the holders of the notes will indemnify the
Trustee before the Trustee exercises any of its rights or powers under the
indenture. This indemnification is subject to the Trustee's duty to act with the
required standard of care during a default. The holders of a majority in
aggregate principal amount of the outstanding notes may direct the time, method
and place of:

     - conducting any proceeding for any remedy available to the Trustee, or

     - exercising any trust or power conferred on the Trustee.

     This right of the holders of the notes is, however, subject to the
provisions in the indenture providing for the indemnification of the Trustee and
other specified limitations.

     In general, the indenture provides that holders of the notes may only
institute an action against us under the indenture if the following four
conditions are fulfilled:

     - the holder previously has given to the Trustee written notice of default
       and the default continues;

     - the holders of at least 25 percent in principal amount of the notes then
       outstanding have both (1) requested the Trustee to institute such action
       and (2) offered the Trustee reasonable indemnity;

     - the Trustee has not instituted such action within 60 days of receipt of
       such request; and

     - the Trustee has not received direction inconsistent with such written
       request by the holders of a majority in principal amount of the notes
       then outstanding.

     The above four conditions do not apply to actions by holders of the notes
against us for payment of principal or interest on or after the due date
provided. The indenture contains a covenant that we will file annually with the
Trustee a certificate of no default or a certificate specifying any default that
exists.

DISCHARGE, DEFEASANCE AND COVENANT DEFEASANCE

     We can discharge or defease our obligations under the indenture as set
forth below.

     Under terms satisfactory to the Trustee, we may discharge certain
obligations to holders of the notes which have not already been delivered to the
Trustee for cancellation. These notes must also:

     - have become due and payable;

     - be due and payable by their terms within one year; or

     - be scheduled for redemption by their terms within one year.

     We may discharge the notes by irrevocably depositing an amount certified to
be sufficient to pay at maturity or upon redemption the principal of and
interest on and any liquidated damages with respect to the notes. We may make
the deposit in cash or U.S. Government Obligations, as defined in the indenture.

     We may also, upon satisfaction of the conditions listed below, discharge
certain obligations to holders of the notes at any time ("Defeasance"). Under
terms satisfactory to the Trustee, we may be released from the obligations
imposed by the sections containing the covenants described above limiting liens
and consolidations, mergers and conveyances of assets. Also under terms
satisfactory to the Trustee, we may omit to comply with these sections without
creating an event of default ("Covenant Defeasance"). Defeasance or Covenant
Defeasance may be effected only if, among other things:

     - we irrevocably deposit with the Trustee cash or U.S. Government
       Obligations as trust funds in an amount certified to be sufficient to pay
       at maturity or upon redemption the principal of and interest on all
       outstanding notes; and

     - we deliver to the Trustee an opinion of counsel to the effect that the
       holders of the notes will not recognize income, gain or loss for United
       States federal income tax purposes as a result of such Defeasance or
       Covenant Defeasance. The opinion must further state that these holders
       will be subject to United States federal income tax on the same amounts,
       in the same manner and at the

                                        24


same times as would have been the case if Defeasance or Covenant Defeasance had
not occurred. In the case of a Defeasance, this opinion must be based on a
ruling of the Internal Revenue Service or a change in United States federal
      income tax law occurring after the date of the indenture, since this
      result would not occur under current tax law.

CONCERNING THE TRUSTEE

     The Trustee is one of a number of banks with which we and our subsidiaries
maintain ordinary banking relationships and with which we and our subsidiaries
maintain credit facilities.

GOVERNING LAW

     The indenture and the notes are governed by, and construed in accordance
with, the laws of the State of New York.

                      EXCHANGE OFFER; REGISTRATION RIGHTS

     We entered into a registration rights agreement with UBS Warburg LLC, as
the Initial Purchasers, for your benefit. In the registration rights agreement,
we agreed to:

     - file with the SEC within 75 days after the initial issuance of the old
       notes a registration statement relating to an offer to exchange the old
       notes for registered new notes with principal amount and terms identical
       in all material respects to the principal amount and terms of the notes
       offered by our Offering Memorandum dated August 22, 2001, except that the
       registered notes would not contain terms with respect to transfer
       restrictions under the Securities Act or the payment of liquidated
       damages;

     - use our reasonable best efforts to cause the exchange offer registration
       statement to be declared effective under the Securities Act within 120
       days after the initial issuance of the old notes;

     - commence the exchange offer promptly after the exchange offer
       registration statement has been declared effective;

     - use our reasonable best efforts to keep the exchange offer registration
       statement effective until the closing of the exchange offer; and

     - use our reasonable best efforts to cause the exchange to be completed
       within 60 days after the SEC declares the exchange offer registration
       statement effective.

     Promptly after the exchange offer registration statement has been declared
effective, we will offer the new notes in exchange for surrender of the old
notes. We will keep the exchange offer open for at least 20 business days, or
longer if required by applicable law, after the effective date of the
registration statement. Interest will accrue on each new note from the last
interest payment date on which we paid interest on the old note tendered in the
exchange offer, or if we have not paid interest on the tendered old note, from
the date of original issuance of the old note.

     Based on existing interpretations of the Securities Act by the staff of the
SEC set forth in several no-action letters to third parties, we believe that you
may offer for resale, resell and otherwise transfer the new notes without
further compliance with the registration and prospectus delivery requirements of
the Securities Act. However, if you are an affiliate of ours, if you intend to
participate in the exchange offer for the purpose of distributing the new notes
or if you are a broker-dealer who purchased the notes offered by our Offering
Memorandum dated August 22, 2001 for the purpose of reselling the notes under
Rule 144A or any other available exemption under the Securities Act, you:

     - will not be able to rely on the interpretation of the staff of the SEC
       set forth in these letters;

     - will not be entitled to tender your old notes in the exchange offer; and

                                        25


     - must comply with the registration and prospectus delivery requirements of
       the Securities Act in connection with any resale or transfer of the notes
       offered by our Offering Memorandum dated August 22, 2001 unless the
       resale or transfer is made under an exemption from those requirements.

     If you wish to exchange your old notes for new notes in the exchange offer,
you will be required to represent that:

     - you are not an affiliate of ours;

     - at the time of the exchange offer, you have no arrangement or
       understanding with any person to participate in the distribution, within
       the meaning of the Securities Act, of the new notes; and

     - you are acquiring the new notes in the ordinary course of your business.

     In addition, any broker-dealer who acquired the old notes for its own
account as a result of market-making or other trading activities must deliver a
prospectus meeting the requirements of the Securities Act in connection with any
resale of the new notes. The SEC has taken the position that broker-dealers may
use the prospectus contained in the registration statement to fulfill this
prospectus delivery requirement. Under the registration rights agreement, we
must allow broker-dealers and any other persons subject to prospectus delivery
requirements to use the prospectus contained in the registration statement in
connection with the resale of the new notes.

     If (1) we determine that applicable law or the applicable interpretations
of the staff of the SEC do not permit us to effect the exchange offer, (2) for
any other reason the exchange offer has not been consummated within 180 days
after the issuance of the old notes or (3) in the written opinion of counsel for
holders of the old notes, a shelf registration statement must be filed and a
prospectus must be delivered by a holder of the old notes in connection with its
reoffering or resale of the old notes, then in addition to effecting the
registration of the new notes under the exchange offer registration statement,
we will:

     - file a shelf registration statement covering resales of the old notes
       within 75 days after the determination described in clause (1), the last
       date described in clause (2) or our receipt of the opinion described in
       clause (3), as applicable;

     - use our reasonable best efforts to cause the shelf registration statement
       to be declared effective under the Securities Act within 60 days after
       filing the registration statement;

     - use our reasonable best efforts to keep the shelf registration statement
       continuously effective until the earlier of (1) the expiration of the
       period referred to in Rule 144(k) under the Securities Act, or similar
       successor rule, with respect to the notes or (2) such time as all of the
       old notes offered by our Offering Memorandum have been sold under the
       shelf registration statement or otherwise cease to be registrable notes
       within the meaning of the registration rights agreement.

     If we file a shelf registration statement, we will notify you when the
shelf registration statement has become effective and take other actions which
are required to permit unrestricted resales of the old notes offered by our
Offering Memorandum dated August 22, 2001. If you sell old notes offered by our
Offering Memorandum under the shelf registration statement, you will be:

     - required to deliver information to be used in connection with the shelf
       registration statement;

     - required to be named as a selling securityholder in the related
       prospectus;

     - required to deliver a prospectus to purchasers;

     - subject to certain of the civil liability provisions under the Securities
       Act in connection with the sales; and

     - bound by some of the provisions of the registration rights agreement,
       including those regarding indemnification rights and obligations.

     By accepting an old note offered by our Offering Memorandum, you are deemed
to have agreed to be bound by the provisions of the registration rights
agreement. Under the registration rights agreement, upon
                                        26


receipt of notice from us of the occurrence of any event which makes any
statement of a material fact in this prospectus which is part of the exchange
registration statement or shelf registration statement untrue or which requires
the making of any changes in this prospectus in order to make the statements in
this prospectus not misleading, you must suspend the disposition of the old
notes until we have amended or supplemented this prospectus to correct the
misstatement or omission and have furnished copies of the amended or
supplemented prospectus to you.

     For purposes of the registration rights agreement, "transfer restricted
securities" means each note until the earliest on the date of which (i) the note
is exchanged in the exchange offer and entitled to be resold to the public by
the holder of the note without complying with the prospectus delivery
requirements of the Securities Act, (ii) the note has been disposed of in
accordance with the shelf registration statement, (iii) the note is disposed of
by a broker-dealer pursuant to the "Plan of Distribution" contemplated by the
exchange offer registration statement (including delivery of the prospectus
contained therein) or (iv) the note is distributed to the public pursuant to
Rule 144 or under the Securities Act.

     The registration rights agreement provides that if:

     - we do not file with the SEC a registration statement which we are
       required to file under the registration rights agreement on or prior to
       the date specified in the registration rights agreement and described
       above;

     - the SEC does not declare a registration statement effective on or prior
       to the date specified in the registration rights agreement and described
       above;

     - we do not consummate the exchange offer within 180 days after the
       issuance of the old notes; or

     - we have filed, and the SEC has declared effective, the shelf registration
       statement and at any time prior to the expiration of the period referred
       to in Rule 144(k) under the Securities Act, or similar successor rule,
       with respect to the old notes, other than after all the old notes have
       been disposed of under the shelf registration statement or cease to be
       registrable notes under the registration rights agreement, the shelf
       registration statement ceases to be effective, or fails to be usable for
       its intended purpose without being succeeded within two business days by
       a post-effective amendment which cures the failure and that is itself
       immediately declared effective;

(each, a "Registration Default") then we agree to pay each holder of transfer
restricted securities affected thereby liquidated damages in an amount equal to
0.25% per annum of the principal amount of transfer restricted securities held
by such holder for the first 90 day period immediately following the occurrence
of a Registration Default, increasing to 0.50% per annum thereafter, from and
including the date on which any such Registration Default occurs. We shall not
be required to pay liquidated damages for more than one Registration Default at
any given time. Following the cure of all Registration Defaults, the accrual of
liquidated damages will cease.

     We have agreed to (1) pay all expenses incident to the exchange offer and
(2) indemnify the Initial Purchasers and holders of the old notes against some
liabilities, including liabilities under the Securities Act.

     We have not completely summarized the provisions of the registration rights
agreement in this prospectus and our summary is subject to, and is qualified in
its entirety by reference to, the actual registration rights agreement. For a
complete description of the terms of the registration rights agreement, you
should read the registration rights agreement, which is filed as an exhibit to
the registration statement of which this prospectus is a part. In addition, you
should not construe our description of the interpretations of, and positions
taken by, the staff of the SEC as legal advice. You should consult your own
legal advisor about this matter.

                                        27


            MATERIAL UNITED STATES FEDERAL INCOME TAX CONSIDERATIONS

     The following is a discussion of the material United States federal income
and estate tax consequences applicable to the exchange of old notes for new
notes in the exchange offer and the ownership and disposition of the notes by an
initial purchaser of the notes. This discussion is based upon current provisions
of the Internal Revenue Code of 1986, as amended, its legislative history,
final, temporary and proposed regulations, published rulings, and court
decisions, all of which are subject to change, possibly on a retroactive basis.
For purposes of this discussion, you are a "U.S. holder" if you are a beneficial
owner of notes who is a "United States person" for United States federal income
tax purposes. A "United States person" is:

     - a citizen or resident of the United States,

     - a corporation, partnership, or other entity created or organized in the
       United States or under the law of the United States or of any state
       thereof including the District of Columbia,

     - an estate whose income is subject to United States federal income
       taxation regardless of its source, or

     - a trust if a U.S. court is able to exercise primary supervision over the
       administration of the trust and one or more United States persons have
       the authority to control all substantial decisions of the trust.

     A non-U.S. holder is a beneficial owner of notes that is not a U.S. holder.
This discussion only applies to you if you hold the notes as capital assets. The
tax treatment of holders of the notes may vary depending upon their particular
situations. Particular persons including, for example, insurance companies, tax
exempt organizations, financial institutions, partnerships or other entities
classified as partnerships for U.S. federal income tax purposes, and
broker-dealers, may be subject to special rules not discussed below. Prospective
investors are urged to consult their own tax advisors regarding the particular
United States federal tax consequences of holding and disposing of notes, as
well as any tax consequences that may arise under the laws of any relevant
foreign, state, local, or other taxing jurisdiction or under any applicable tax
treaty.

TAX CONSEQUENCES OF THE EXCHANGE OFFER

     The exchange of old notes for new notes pursuant to the exchange offer will
not be a taxable event for United States federal income tax purposes. U.S.
holders and non-U.S. holders will not recognize any taxable gain or loss as a
result of the exchange and will have the same tax basis and holding period in
the new notes as they had in the old notes immediately before the exchange.

TAX CONSEQUENCES TO NON-U.S. HOLDERS

  Payment of Interest

     Generally, interest we pay to you will not be subject to United States
federal income tax, provided that this interest income is not effectively
connected with your conduct of a United States trade or business, and will not
be subject to United States federal withholding tax provided that:

     - you do not actually or constructively own 10% or more of the combined
       voting power of all classes of our stock,

     - you are not, for United States federal income tax purposes, a controlled
       foreign corporation related to us within the meaning of the Internal
       Revenue Code,

     - you are not a bank receiving interest on a loan entered into in the
       ordinary course of its business within the meaning of the Internal
       Revenue Code, and

     - either (A) you provide a Form W-8BEN (or a suitable substitute form),
       signed under penalties of perjury that includes your name and address and
       certify as to your non-U.S. holder status in

                                        28


compliance with applicable law and regulations or (B) hold your notes through a
securities clearing organization, bank or other financial institution that holds
customers' securities in the ordinary course of its trade or business and that
      provides a statement signed under penalties of perjury in which it
      certifies to us or our agent that a Form W-8BEN (or suitable substitute),
      has been received by it from you or a qualifying intermediary and
      furnishes us or our agent with a copy thereof.

     If these conditions are not satisfied, then interest paid on the notes will
be subject to U.S. federal income withholding tax at a rate of 30% unless that
rate is reduced or eliminated pursuant to an applicable tax treaty.

     Except to the extent that an applicable treaty otherwise provides, you
generally will be taxed in the same manner as a U.S. person with respect to
interest if the interest income is effectively connected with your conduct of a
United States trade or business. Effectively connected interest received by a
corporate non-U.S. holder may also, under certain circumstances, be subject to
an additional "branch profits tax" at a 30% rate or, if applicable, a lower
treaty rate. Even though this effectively connected interest is subject to
income tax, and may be subject to the branch profits tax, it is not subject to
withholding tax, provided that you deliver IRS Form W-8ECI or successor form to
the payor.

  Sale, Exchange or Redemption of the Notes

     You will not be subject to United States federal withholding tax on any
gain realized on the sale, exchange, redemption or other disposition of a note.

     You will not be subject to United States federal income tax on any gain
realized on the sale, exchange, redemption or other disposition of a note
unless:

     - the gain is effectively connected with your conduct of a United States
       trade or business, or, under an applicable tax treaty, is attributable to
       a permanent establishment you maintain in the United States, or

     - if you are an individual, you are present in the United States for a
       period or periods aggregating 183 days or more during the taxable year of
       the disposition and certain other requirements are met.

  U.S. Federal Estate Tax Considerations

     A note beneficially owned by an individual who is not a citizen or resident
of the United States at the time of death will generally not be includable in
the decedent's gross estate for United States federal estate tax purposes,
provided that the beneficial owner did not at the time of death actually or
constructively own 10% or more of the combined voting power of all classes of
our stock entitled to vote, and provided that, at the time of the holder's
death, payments with respect to that note would not have been effectively
connected with the holder's conduct of a trade or business within the United
States.

  Information Reporting and Backup Withholding Tax

     United States information reporting requirements and backup withholding tax
generally will not apply to payments of interest and principal on a note if you
provide the statement described in "-- Payment of Interest" or otherwise
establish an exemption, provided that we do not have actual knowledge that you
are a United States person.

     Information reporting requirements and backup withholding tax generally
will not apply to any payment of the proceeds of the sale of a note effected
outside the United States by a foreign office of a "broker." However, if the
broker:

     - is a United States person,

     - derives 50% or more of its gross income from all sources for certain
       periods from the conduct of a United States trade or business,

                                        29


     - is a controlled foreign corporation for United States tax purposes or

     - is a foreign partnership in which one or more United States persons, in
       the aggregate, own more than 50% of the income or capital interests in
       the partnership or a foreign partnership that is engaged in a trade or
       business in the United States,

payment of the proceeds will be subject to information reporting requirements
unless the broker has documentary evidence in its records that you are a
non-U.S. holder and certain other conditions are met, or you otherwise establish
an exemption.

     Payment of the proceeds of any sale of a note to or through the United
States office of a broker, whether foreign or United States, is subject to
information reporting and backup withholding requirements, unless you provide
the statement described in "-- Payment of Interest" or otherwise establish an
exemption and the broker does not have actual knowledge that you are a United
States person or that the exemption conditions are not satisfied.

     Under current law, the backup withholding rate is 30.5%. Pursuant to the
Economic Growth and Tax Relief Reconciliation Act of 2001, the backup
withholding rate will be gradually reduced each year until 2006, when the backup
withholding rate will be 28%. Any amounts withheld from a payment to you under
the backup withholding rules will be allowed as a credit against your United
States federal income tax liability and may entitle you to a refund, provided
that the required information is provided to the IRS.

     THIS DISCUSSION IS INCLUDED FOR GENERAL INFORMATION ONLY AND MAY NOT BE
APPLICABLE DEPENDING UPON YOUR PARTICULAR SITUATION. YOU SHOULD CONSULT YOUR TAX
ADVISOR WITH RESPECT TO THE TAX CONSEQUENCES TO YOU OF THE OWNERSHIP AND
DISPOSITION OF THE NOTES, INCLUDING THE TAX CONSEQUENCES UNDER STATE, LOCAL,
FOREIGN AND OTHER TAX LAWS AND THE POSSIBLE EFFECTS OF CHANGES IN FEDERAL OR
OTHER TAX LAWS.

                          CERTAIN ERISA CONSIDERATIONS

     The following is a summary of certain considerations associated with the
purchase of the notes by employee benefit plans that are subject to Title I of
the U.S. Employee Retirement Income Security Act of 1974, as amended ("ERISA"),
plans, individual retirement accounts and other arrangements that are subject to
Section 4975 of the Code or provisions under any federal, state, local, non-U.S.
or other laws or regulations that are similar to such provisions of the Code or
ERISA (collectively, "Similar Laws"), and entities whose underlying assets are
considered to include "plan assets" of such plans, accounts and arrangements
(each, a "Plan").

GENERAL FIDUCIARY MATTERS

     ERISA and the Code impose certain duties on persons who are fiduciaries of
a Plan subject to Title I of ERISA or Section 4975 of the Code and prohibit
certain transactions involving the assets of a Plan and its fiduciaries or other
interested parties. Under ERISA and the Code, any person who exercises any
discretionary authority or control over the administration of such a Plan or the
management or disposition of the assets of such a Plan, or who renders
investment advice for a fee or other compensation to such a Plan, is generally
considered to be a fiduciary of the Plan.

     In considering an investment in the notes of a portion of the assets of any
Plan, a fiduciary should determine whether the investment is in accordance with
the documents and instruments governing the Plan and the applicable provisions
of ERISA, the Code or any similar law relating to a fiduciary's duties to the
Plan including, without limitation, the prudence, diversification, delegation of
control and prohibited transaction provisions of ERISA, the Code and any other
applicable Similar Laws.

     Any insurance company proposing to invest assets of its general account in
the notes should consider the extent that such investment would be subject to
the requirements of ERISA in light of the U.S. Supreme Court's decision in John
Hancock Mutual Life Insurance Co. v. Harris Trust and Savings Bank
                                        30


and under any subsequent legislation or other guidance that has or may become
available relating to that decision, including the enactment of Section 401(c)
of ERISA by the Small Business Job Protection Act of 1996 and any related
regulations.

PROHIBITED TRANSACTION ISSUES

     Section 406 of ERISA and Section 4975 of the Code prohibit Plans subject to
Title I of ERISA or Section 4975 of the Code from engaging in specified
transactions involving plan assets with persons or entities who are "parties in
interest," within the meaning of ERISA, or "disqualified persons," within the
meaning of Section 4975 of the Code, unless an exemption is available. A party
in interest or disqualified person who engaged in a non-exempt prohibited
transaction may be subject to excise taxes and other penalties and liabilities
under ERISA and the Code. In addition, the fiduciary of the Plan that engaged in
such a non-exempt prohibited transaction may be subject to penalties and
liabilities under ERISA and the Code. The acquisition and/or holding of notes by
a Plan with respect to which we, our affiliates or the Initial Purchaser is
considered a party in interest or a disqualified person may constitute or result
in a direct or indirect prohibited transaction under ERISA and/or the Code,
unless the investment is acquired and is held in accordance with an applicable
statutory, class or individual prohibited transaction exemption. In this regard,
the U.S. Department of Labor has issued prohibited transaction class exemptions,
or "PTCEs," that may apply to the acquisition and holding of the notes. These
class exemptions include PTCE 84-14 respecting transactions determined by
independent qualified professional asset managers, PTCE 90-1 respecting
insurance company pooled separate accounts, PTCE 91-38 respecting bank
collective investment trusts, PTCE 95-60 respecting life insurance company
general accounts and PTCE 96-23 respecting transactions determined by in-house
asset managers. However, there can be no assurance that all of the conditions of
any such exemptions will be satisfied, or, if satisfied, that the scope of the
relief will cover all acts which might be construed as prohibited transactions.

     Because of the foregoing, the notes should not be purchased or held by any
person investing "plan assets" of any Plan, unless such purchase and holding
will not constitute a non-exempt prohibited transaction under ERISA and the Code
or similar violation of any applicable Similar Laws whether pursuant to an
applicable exemption or otherwise.

     The foregoing discussion is general in nature and is not intended to be all
inclusive. Due to the complexity of these rules and the penalties that may be
imposed upon persons involved in non-exempt prohibited transactions, it is
particularly important that fiduciaries, or other persons considering purchasing
the notes on behalf of, or with the assets of, any Plan, consult with their
counsel regarding the potential applicability of ERISA, Section 4975 of the Code
and any similar laws to such investment and whether an exemption would be
applicable to the purchase and holding of the notes.

                              PLAN OF DISTRIBUTION


     Each broker-dealer that receives new notes for its own account in the
exchange offer must acknowledge that it will deliver a prospectus in connection
with any resale of the new notes. This prospectus, as it may be amended or
supplemented from time to time, may be used by a broker-dealer in connection
with resales of new notes received in exchange for old notes where the old notes
were acquired as a result of market-making activities or other trading
activities. We have agreed that for 180 days after the closing of the exchange
offer we will make this prospectus, as amended or supplemented, available to any
broker-dealer that requests these documents from the Exchange Agent for use in
connection with resales of the new notes. In addition, until July 9, 2002, all
dealers effecting transactions in the new notes may be required to deliver a
prospectus.


     We will not receive any proceeds from any sale of new notes by
broker-dealers. New notes received by broker-dealers for their own account in
the exchange offer may be sold from time to time in one or more transactions in
the over-the-counter market, in negotiated transactions, through the writing of
options on the new notes or a combination of such methods of resale, at market
prices prevailing at the time of resale, at prices related to such prevailing
market prices or negotiated prices. Any resale of the new notes
                                        31


may be made directly to purchasers or to or through brokers or dealers who may
receive compensation in the form of commissions or concessions from any such
broker-dealer and/or the purchasers of any such new notes. Any broker-dealer
that resells new notes that were received by it for its own account in the
exchange offer and any broker or dealer that participates in a distribution of
the new notes may be deemed to be an "underwriter" within the meaning of the
Securities Act. Any profit on any resale of new notes and any commissions or
concessions received by any persons deemed to be underwriters may be deemed to
be underwriting compensation under the Securities Act. The enclosed letter of
transmittal states that by acknowledging that it will deliver and be delivering
a prospectus, a broker-dealer will not be deemed to admit that it is an
"underwriter" within the meaning of the Securities Act.

     For a period of 180 days after the closing of the exchange offer, we will
promptly send additional copies of this prospectus and any amendment or
supplement to this prospectus to any broker-dealer that requests such documents
in the letter of transmittal. We have a greed to pay all expenses incident to
the exchange offer other than commissions or concessions of any brokers or
dealers and will indemnify the holders of the old notes (including any
broker-dealers) against certain liabilities, including liabilities under the
Securities Act.

     Following completion of the exchange offer, we may, in our sole discretion,
commence one or more additional exchange offers to holders of old notes who did
not exchange their old notes for new notes in the exchange offer on terms which
may differ from those contained in the prospectus and the enclosed letter of
transmittal. This prospectus, as it may be amended or supplemented from time to
time, may be used by us in connection with any additional exchange offers. These
additional exchange offers may take place from time to time until all
outstanding old notes have been exchanged for new notes, subject to the terms
and conditions in the prospectus and letter of transmittal distributed by us in
connection with these additional exchange offers.

                                 LEGAL OPINIONS

     The validity of the new notes will be passed upon for us by Andrews & Kurth
Mayor, Day, Caldwell & Keeton L.L.P., Houston, Texas.

                                    EXPERTS

     Ernst & Young LLP, independent auditors, have audited the consolidated
financial statements included in Transcontinental Gas Pipe Line Corporation's
Annual Report on Form 10-K for the year ended December 31, 2000, as set forth in
their report, which is incorporated by reference in this prospectus and
elsewhere in the Registration Statement. Transcontinental Gas Pipe Line
Corporation's financial statements are incorporated by reference in reliance on
Ernst & Young LLP's report, given on their authority as experts in accounting
and auditing.

                                        32


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

     YOU SHOULD RELY ON THE INFORMATION CONTAINED OR INCORPORATED BY REFERENCE
IN THIS PROSPECTUS. WE HAVE NOT AUTHORIZED ANYONE TO PROVIDE YOU WITH DIFFERENT
INFORMATION AND IF YOU RECEIVE ANY UNAUTHORIZED INFORMATION, YOU SHOULD NOT RELY
ON IT. WE ARE NOT MAKING AN OFFER OF THE NEW NOTES IN ANY PLACE WHERE THE OFFER
OR SALE IS NOT PERMITTED. YOU SHOULD ASSUME THAT THE INFORMATION CONTAINED OR
INCORPORATED BY REFERENCE IN THIS PROSPECTUS IS ACCURATE ONLY AS OF THE DATE OF
SUCH INFORMATION.

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

                               TABLE OF CONTENTS

<Table>
<Caption>
                                        PAGE
                                        ----
                                     
Where You Can Find Information.......    ii
Forward-Looking Statements...........    ii
Prospectus Summary...................     1
Risk Factors.........................     6
Use of Proceeds......................     8
Ratio of Earnings to Fixed Charges...     8
Selected Financial and Operating
  Data...............................     9
The Exchange Offer...................    10
Description of Notes.................    19
Exchange Offer; Registration
  Rights.............................    25
Material United States Federal Income
  Tax Considerations.................    28
Certain ERISA Considerations.........    30
Plan of Distribution.................    31
Legal Opinions.......................    32
Experts..............................    32
</Table>

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

                              TRANSCONTINENTAL GAS
                             PIPE LINE CORPORATION
                              EXCHANGE OFFER FOR:
                           ALL 7% SERIES A NOTES DUE
           AUGUST 15, 2011 FOR 7% SERIES B NOTES DUE AUGUST 15, 2011
                           -------------------------

                                   PROSPECTUS
                           -------------------------

                               December 11, 2001


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


                                    PART II

                   INFORMATION NOT REQUIRED IN THE PROSPECTUS

ITEM 20.  INDEMNIFICATION OF DIRECTORS AND OFFICERS

     Transcontinental Gas Pipe Line Corporation is empowered by Section 145 of
the General Corporation Law 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 Transcontinental Gas Pipe Line Corporation. 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 by-law, agreement,
vote of stockholders or disinterested directors, or otherwise. The By-laws of
Transcontinental Gas Pipe Line Corporation provide for indemnification by it of
its directors and officers to the fullest extent permitted by the General
Corporation Law of Delaware. In addition, Transcontinental Gas Pipe Line
Corporation has entered into 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.

     Policies of insurance are maintained by Transcontinental Gas Pipe Line
Corporation under which its directors and officers 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 which 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 21.  EXHIBITS AND FINANCIAL STATEMENT SCHEDULES

(a) Exhibits


     The following instruments and documents are included as Exhibits to this
Amendment No. 1 to Registration Statement.



<Table>
<Caption>
EXHIBIT
NUMBER                                    EXHIBIT
- -------                                   -------
          
  4.1*    --    Indenture, dated as of August 27, 2001, between the
                registrant and Citibank, N.A., as trustee.
  4.2*    --    Registration Rights Agreement, dated August 27, 2001, by and
                among the registrant and UBS Warburg LLC, and other parties
                listed therein, as Initial Purchasers.
  5.1*    --    Opinion of Andrews & Kurth Mayor, Day, Caldwell & Keeton
                L.L.P., as to the validity of the new notes.
 10.1*    --    Purchase Agreement between registrant and the parties listed
                therein, dated August 22, 2001.
 12.1     --    Statement re computation of ratios.
 23.1     --    Consent of Ernst & Young LLP.
 24.1*    --    Power of Attorney.
 25.1*    --    Statement of Eligibility of Citibank, N.A., as trustee, on
                Form T-1 with respect to the issuance of 7.00% Notes due
                August 15, 2011, Series A, by the registrant to the
                Indenture between the registrant and Citibank, N.A., as
                trustee.
 99.1*    --    Form of Letter of Transmittal.
 99.2     --    Form of Guidelines for Certification of Taxpayer
                Identification Number on Substitute Form W-9.
 99.3     --    Form of Notice of Guaranteed Delivery.
 99.4     --    Form of Letter to Brokers, Dealers, Commercial Banks, Trust
                Companies and Other Nominees.
</Table>


                                       II-1



<Table>
<Caption>
EXHIBIT
NUMBER                                    EXHIBIT
- -------                                   -------
          
 99.5     --    Form of Letter to Clients.
 99.6     --    Form of Exchange Agent Agreement.
</Table>


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


*Previously filed.


ITEM 22.  UNDERTAKINGS

     The undersigned Registrant hereby undertakes:

          (a) that, for purposes of determining any liability under the
     Securities Act of 1933, each filing of the registrant's annual report
     pursuant to Section 13(a) or 15(d) of the Securities Exchange Act of 1934
     (and, where applicable, each filing of an employee benefit plan's annual
     report pursuant to 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 therein, and the offering of such securities at that time shall be
     deemed to be the initial bona fide offering thereof.

          (b) to respond to requests for information that is incorporated by
     reference into the prospectus pursuant to Item 4, 10(b), 11, or 13 of this
     form, within one business day of receipt of such request, and to send the
     incorporated documents by first class mail or other equally prompt means.
     This includes information contained in documents filed subsequent to the
     effective date of the registration statement through the date of responding
     to the request.

          (c) to supply by means of a post-effective amendment all information
     concerning a transaction, and the company being acquired involved therein,
     that was not the subject of and included in the Registration Statement when
     it became effective.

                                       II-2


                                   SIGNATURES


     Pursuant to the requirements of the Securities Act of 1933, the Registrant
has duly caused this Amendment No. 1 to Registration Statement on Form S-4 to be
signed on its behalf by the undersigned, thereunto duly authorized, on this 11th
day of December, 2001.


                                          TRANSCONTINENTAL GAS PIPE LINE
                                          CORPORATION


                                          By:      /s/ JAMES C. BOURNE

                                            ------------------------------------
                                                      James C. Bourne
                                            Controller, Chief Accounting Officer


     Pursuant to the requirements of the Securities Act of 1933, this Amendment
No. 1 to Registration Statement has been signed by the following persons in the
capacities indicated on December 11, 2001.



<Table>
<Caption>
                    SIGNATURE                                               TITLE
                    ---------                                               -----
                                              

               /s/ KEITH E. BAILEY                                  Chairman of the Board
 ------------------------------------------------
                 Keith E. Bailey


              /s/ GARY D. LAUDERDALE                  Director, Senior Vice President, General Manager,
 ------------------------------------------------         Assistant Secretary & Assistant Treasurer
                Gary D. Lauderdale                              (Principal Executive Officer)


                /s/ NICK A. BACILE                                     Vice President
 ------------------------------------------------               (Principal Financial Officer)
                  Nick A. Bacile                        Chief Financial Officer, Assistant Secretary


               /s/ JAMES C. BOURNE                                       Controller
 ------------------------------------------------              (Principal Accounting Officer)
                 James C. Bourne                                  Chief Accounting Officer


 *By:
        ------------------------------------------
                     Nick A. Bacile,
                     Attorney-in-Fact
</Table>


                                       II-3


                               INDEX TO EXHIBITS


<Table>
<Caption>
EXHIBIT
NUMBER                                    EXHIBIT
- -------                                   -------
          
  4.1*    --    Indenture, dated as of August 27, 2001, between the
                registrant and Citibank, N.A., as trustee.
  4.2*    --    Registration Rights Agreement, dated August 27, 2001, by and
                among the registrant and UBS Warburg LLC, and other parties
                listed therein, as Initial Purchasers.
  5.1*    --    Opinion of Andrews & Kurth Mayor, Day, Caldwell & Keeton
                L.L.P., as to the validity of the new notes.
 10.1*    --    Purchase Agreement between registrant and the parties listed
                therein, dated August 22, 2001.
 12.1     --    Statement re computation of ratios.
 23.1     --    Consent of Ernst & Young LLP.
 24.1*    --    Power of Attorney.
 25.1*    --    Statement of Eligibility of Citibank, N.A., as trustee, on
                Form T-1 with respect to the issuance of 7.00% Notes due
                August 15, 2011, Series A, by the registrant to the
                Indenture between the registrant and Citibank, N.A., as
                trustee.
 99.1*    --    Form of Letter of Transmittal.
 99.2     --    Form of Guidelines for Certification of Taxpayer
                Identification Number on Substitute Form W-9.
 99.3     --    Form of Notice of Guaranteed Delivery.
 99.4     --    Form of Letter to Brokers, Dealers, Commercial Banks, Trust
                Companies and Other Nominees.
 99.5     --    Form of Letter to Clients.
 99.6     --    Form of Exchange Agent Agreement.
</Table>


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


*Previously filed.