Document:

EX-4.1
                          FIRST SUPPLEMENTAL INDENTURE

                            Dated as of May 30, 2000

                                     between

                     IROQUOIS GAS TRANSMISSION SYSTEM, L.P.

                                       and

                            THE CHASE MANHATTAN BANK,

                as Trustee, Paying Agent, Security Registrar and
                                 Transfer Agent

                           8.68% Senior Notes due 2010

                                       1
<PAGE>

              FIRST SUPPLEMENTAL INDENTURE, dated as of May 30, 2000 (this
"First Supplemental Indenture"), between IROQUOIS GAS TRANSMISSION SYSTEM, L.P.,
a limited partnership organized under the laws of the State of Delaware, as
issuer (the "Issuer") and THE CHASE MANHATTAN BANK, as Trustee, Paying Agent,
Security Registrar and Transfer Agent under the Original Indenture referred to
below (the "Trustee") under the Original Indenture.

                                   WITNESSETH:

              WHEREAS, the Issuer has heretofore executed and delivered to the
Trustee an indenture dated as of May 30, 2000 (hereinafter called the "Original
Indenture" and together with the First Supplemental Indenture, the "Indenture"),
to provide for the issuance from time to time of certain of its debt securities,
the form and terms of which are to be established as set forth in Section 2.1 of
the Original Indenture;

              WHEREAS, Section 9.1 of the Original Indenture provides, among
other things, that the Issuer and the Trustee may enter into indentures
supplemental to the Original Indenture for, among other things, the purpose of
establishing the form and terms of the Notes of any series as permitted by
Section 2.1 of the Original Indenture;

              WHEREAS the Issuer desires to create a series of the Notes in an
aggregate principal amount of $200,000,000 to be designated the "8.68% Senior
Notes due 2010 (Restricted)" (the "Restricted Notes") which may be exchanged for
a series of the Notes in an aggregate principal amount of $200,000,000 to be
designated the "8.68% Senior Notes due 2010" (the "Exchange Notes", which shall,
together with the Restricted Notes, be referred to herein as the "Senior Notes
2010" and shall constitute "Notes" for the purposes of the Original Indenture
and this First Supplemental Indenture), and all action on the part of the Issuer
necessary to authorize the issuance of the Senior Notes 2010 under the Original
Indenture and this First Supplemental Indenture has been duly taken; and

              WHEREAS, all acts and things necessary to make such Senior Notes
2010, when executed by the Issuer and authenticated and delivered by the Trustee
as provided in the Original Indenture, the valid and binding obligations of the
Issuer and to constitute these presents a valid and binding supplemental
indenture and agreement according to its terms, have been done and performed.

              NOW, THEREFORE, THIS FIRST SUPPLEMENTAL INDENTURE WITNESSETH:

              That in consideration of the premises and of the acceptance and
purchase of the Senior Notes 2010 by the holders thereof and of the acceptance
of this trust by the Trustee, the Issuer covenants and agrees with the Trustee,
for the equal benefit of holders of the Senior Notes 2010, as follows:

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<PAGE>

                                  Article One
                                   Definitions

              The use of the terms and expressions herein is in accordance with
the definitions, uses and constructions contained in the Original Indenture and
the form of the Note attached hereto as Exhibit A. In addition, for all purposes
of this First Supplemental Indenture, except as otherwise expressly provided or
unless the context otherwise expressly requires, the following terms shall have
the respective meanings assigned to them as follows and shall be construed as if
defined in Article One of the Original Indenture:

              "DTC" means The Depository Trust Company, New York, New York, or
its successors.

              "Exchange Offer" means the offer that may be made pursuant to the
Registration Rights Agreement by the Issuer to exchange Restricted Notes for the
Exchange Notes.

              "Registration Rights Agreement" means the Registration Rights
Agreement, dated May 30, 2000 between the Issuer and the Initial Purchasers
named therein as such agreement may be amended, modified or supplemented from
time to time.

              "Regulation S" means Regulation S under the Securities Act, as
such Regulation may be amended from time to time, or under any similar rules or
regulations hereafter adopted by the SEC.

              "Restricted Notes Legend" means a legend substantially in the form
of the legend contained in the form of Restricted Notes set forth in Exhibit A
hereto.

              "Transfer Certificate" means a certificate of transfer
satisfactory to the Issuer and the Trustee (as Security Registrar) substantially
in the form of Exhibit B hereto.

                                  Article Two
                         Terms and Issuance of the Notes

Section 2.1.  Issue of Senior Notes 2010.
              --------------------------

              A series of Notes as described in the recitals hereto each shall
be executed, authenticated and delivered in accordance with the provisions of,
and shall in all respects be subject to, the terms, conditions and covenants of
the Original Indenture and this First Supplemental Indenture (including the form
of Note set forth in Exhibit A attached hereto). The aggregate principal amount
of the Senior Notes 2010 which may be authenticated and delivered under the
First Supplemental Indenture shall not, except as permitted by the provisions of
the Original Indenture, exceed $200,000,000.

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<PAGE>

Section 2.2.  Interest; Record Date
              ---------------------

              Interest on the Notes will be payable semi-annually on April 30
and October 31 in each year, commencing October 31, 2000, at a rate of 8.68% per
annum, until the principal hereof is paid or made available for payment,
provided however that if a Registration Default (as defined in the Registration
Right Agreement) occurs, interest will accrue on the Notes at a rate of 9.18%
per annum from and including the day following the applicable Registration
Default to and including the date on which the event which has resulted in
Additional Interest (as defined in the Registration Rights Agreement) being
required to be paid has been cured pursuant to the terms of the Registration
Rights Agreement.

              The Interest so payable and punctually paid or duly provided for,
on any Debt Service Payment Date will be paid to the Person in whose name the
Notes (or one or more Predecessor Notes) is registered at the close of business
on the Regular Record Date for such principal and interest, which shall be the
fifteenth day (whether or not a Business Day) preceding such Debt Service
Payment Date.

              Any such interest or principal not so punctually paid or duly
provided for will forthwith cease to be payable to the Person in whose name the
Notes are registered on the Regular Record Date and may be paid to the Person in
whose name such Notes (or one or more Predecessor Notes) is registered at the
close of business on the Special Record Date to be fixed by the Issuer, notice
whereof shall be given to the Holders of the Notes not less than 10 days prior
to such Special Record Date, or may be at any time in any other lawful manner
not inconsistent with the requirements of any securities or exchange in which
the Notes of this series may be listed and upon such notice as may be required
by such exchange on which Notes of this series may be listed, and upon such
notice as may be required by such exchange, all as more fully provided in the
Original Indenture. The Notes do not have the benefit of any sinking fund.

Section 2.3.  Place of Payment
              ----------------

              The principal of, the premium, if any, and interest on the Notes
will be payable at the offices of the Trustee at: 450 West 33rd Street, New
York, New York 10001, Attention: Capital Markets Fiduciary Services (the "Place
of Payment").

              The Notes may be surrendered for registration of transfer and
exchange at the Place of Payment. Upon receiving the Notes surrendered for
registration of transfer or exchange, the Issuer will issue new Notes which will
be sent to the Trustee for authentication and delivery as set forth in Section
2.5 of this Supplemental Indenture. Notices and demands to or upon the Issuer in
respect of the Notes should be served at the Place of Payment.

Section 2.4.  Form of the Notes; Incorporation of Terms.
              -----------------------------------------

              Unless issued in definitive form to Institutional Accredited
Investors, the Restricted Notes offered and sold in their initial distribution
in reliance on Rule 144A shall initially be issued in the form of one or more
separate Global Notes (each, a "Rule

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<PAGE>

144A Global Note"), the face and reverse of which shall be substantially in the
form set forth in Exhibit A attached hereto, the terms of which are herein
incorporated by reference and which are part of this First Supplemental
Indenture. Unless issued in definitive form to Institutional Accredited
Investors, Restricted Senior Notes offered and sold in their initial
distribution in reliance on Regulation S shall initially be issued in the form
of one or more separate Global Notes (each, a "Regulation S Global Note" and
together with the Rule 144A Global Note a "Restricted Global Note"), the face
and reverse of which shall be substantially in the form set forth in Exhibit A.
Unless issued in definitive form, the Exchange Notes shall be issued as one or
more Global Notes (the "Exchange Global Notes") and delivered by the Trustee to
the Book-Entry Depositary or a nominee or custodian therefor. Definitive Notes
registered in the name or names of Persons other than the Depositary or its
nominee shall only be issued in exchange for such Exchange Global Notes in the
circumstances set forth in Section 2.4(b) of the Original Indenture.

Section 2.5.  Transfer Restrictions; Exchanging Restricted Notes with
              Restricted Notes.
              -------------------------------------------------------

              Except as permitted by Section 2.4, the Restricted Notes shall
bear the Restricted Notes Legend and may not be transferred except in compliance
with the Restricted Notes Legend. The Restricted Notes Legend borne by such
Restricted Note shall be removed by the Issuer (i) in the case of any Rule 144A
Global Note, at any time on or after the occurrence of the "Resale Restriction
Termination Date" on such Legend and (ii) in the case of any Regulation S Global
Note at any time on or after the expiration of the "restricted period" (within
the meaning of Regulation S) with respect to any such Restricted Senior Note
shall have occurred.

              (a) Exchanges between Regulation S Global Note and Rule 144A
Global Note:

              If a holder of a beneficial interest in a Rule 144A Global Note
wishes at any time to transfer such interest to a Person who wishes to take
delivery thereof in the form of a beneficial interest in a Regulation S Global
Note, or if a holder of a beneficial interest in a Regulation S Global Note
wishes at any time to transfer such interest to a Person who wishes to take
delivery thereof in the form of a beneficial interest in a Rule 144A Global
Note, upon receipt by the Trustee (as Security Registrar) at its Corporate Trust
Office of a Transfer Certificate in the appropriate form and:

              (i) written instructions given in accordance with the rules and
         procedures of the Depositary (together with, as applicable, the rules
         and procedures of The Euroclear System ("Euroclear") and Clearstream
         Banking, societe anonyme ("Clearstream, Luxembourg"), the "Applicable
         Procedures") from the respective persons who have accounts with the
         Depositary (the "Participants") directing the Depositary to cause to be
         credited to another account of the Participant a beneficial interest in
         such Regulation S Global Note or Rule 144A Global Note (as the case may
         be) equal to that of the beneficial interest in

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<PAGE>

         such Rule 144A Global Note or Regulation S Global Note (as the case may
         be) to be so transferred; and

              (ii) a written instructions given in accordance with the
         Applicable Procedures containing information regarding such other
         account, as well as the account of Euroclear or Clearstream, Luxembourg
         (as the case may be) for which such other account is held, to be
         credited with, and the account of such applicable Participant to be
         debited for, such beneficial interest.

the Trustee shall (1) reduce or increase (as the case may be) the principal
amount of such Rule 144A Global Note, and increase or reduce (as the case may
be) the principal amount of such Regulation S Global Note, in each case by an
amount equal to the principal amount of the beneficial interest in such Rule
144A Global Note or Regulation S Global Note (as the case may be) to be so
transferred, (2) instruct the Depositary to make a corresponding reduction or
increase (as the case may be) to the Book-Entry Interests relating to such
Global Note and to credit and debit such beneficial interests to the respective
accounts specified in the instructions referred to above.

              (b) Exchanging Restricted Definitive Notes for Regulation S Global
Note or Rule 144A Global Note.

              If a holder of a Definitive Note bearing the Restricted Note
Legend (the "Restricted Definitive Note") wishes to exchange such Definitive
Note for a beneficial interest in a Regulation S Global Note or a beneficial
interest in a Rule 144A Global Note or wishes to transfer such Restricted
Definitive Note to a person who wishes to take delivery thereof in the form of a
beneficial interest in a Regulation S Global Note or a Rule 144A Global Note,
upon receipt by the Trustee (as Security Registrar) at its Corporate Trust
Office of a Transfer Certificate in the appropriate form and:

              (i) the Restricted Definitive Note to be so exchanged or
         transferred; and

              (ii) written instructions given in accordance with the rules and
         procedures of the Depositary and the Applicable Procedures from the
         applicable Participant directing the Trustee to cancel such Restricted
         Definitive Note and for the Depositary to cause to be credited to the
         specified account of the applicable Participant a beneficial interest
         in such Regulation S Global Note or Rule 144A Global Note (as the case
         may be) equal to the principal amount of the Restricted Definitive Note
         so exchanged or transferred.

the Trustee shall (1) cancel such Restricted Definitive Note and (2) instruct
the Depositary to make a corresponding increase to the Book-Entry Interests
relating to such Regulation S Global Note or Rule 144A Global Note (as the case
may be) and to credit such beneficial interests to the respective accounts
specified in the instructions referred to above.

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<PAGE>

              (c) Exchange of Regulation S Global Note or Rule 144A Global Note
for Definitive Notes

              If a holder of a beneficial interest in a Regulation S Global Note
or a Rule 144A Global Note is required to exchange such interest for one or more
Restricted Definitive Notes or to transfer such interest to a person who is
required to take delivery thereof in the form of one or more Restricted
Definitive Notes, upon receipt by the Trustee (as Security Registrar) at its
Corporate Trust Office of a Transfer Certificate in the appropriate form and:

              (i) written instructions given in accordance with the rules and
         procedures of the Depositary and the Applicable Procedures from the
         applicable Participant directing the Trustee to authenticate and
         deliver such Definitive Note or Notes in an aggregate principal equal
         to that of the beneficial interest in the Regulation S Global Note or
         Rule 144A Global Note (as the case may be) to be debited and for the
         Book-Entry Depositary to cause to be debited to the specified account
         of the applicable Participant a beneficial interest in such Regulation
         S Global Note or Rule 144A Global Note (as the case may be) equal to
         the principal amount of the Restricted Definitive Note so exchanged or
         transferred such information to contain the name in which such
         Restricted Definitive Note or Notes are to be registered and the
         authorized denomination of each such Restricted Definitive Note or
         Notes;

              (ii) if such Restricted Definitive Note is to be transferred to an
         Institutional Accredited Investor, a letter substantially in the form
         of Exhibit C hereto appropriately completed and signed by such
         Institutional Accredited Investor; and

              (iii) one or more Restricted Definitive Notes issued and duly
         executed by the Issuer

the Trustee shall (1) instruct the Depositary to make a corresponding reduction
to the Book-Entry Interests relating to such Regulation S Global Note or Rule
144A Global Note (as the case may be) and to debit such beneficial interests to
the respective accounts as specified in the written instructions and (2) shall
thereupon promptly authenticate and deliver at the Corporate Trust Office (as
the office of the Security Registrar), or send by mail (at the risk of the
transferee) to such address as the transferee may request, the Restrictive
Definitive Note or Notes, registered in the requested name as specified in the
written instructions.

              (d) Exchange of Restricted Definitive Notes for other Restricted
Definitive Notes

              A Restricted Definitive Note may be exchanged or transferred in
whole or in part in the principal amount of authorized denominations of such
Restricted Definitive note, upon receipt by the Trustee (as Security Registrar)
at its Corporate Trust Office of: (i) in the case of an exchange, a written
request for exchange, (ii) a Transfer Certificate in

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<PAGE>

the appropriate form and a new Restricted Definitive Note issued and duly
executed by the Issuer. In exchange for any Restricted Definitive Note properly
presented for exchange or transfer, the Trustee shall promptly authenticate and
deliver at the Corporate Trust Office (as the office of the Security Registrar),
or send by mail (at the risk of the holder (in the case of exchanges only) or
transferee) to such address as the holder (in the case of exchanges only) or
transferee may request, a Definitive Note or Notes, registered in the name of
such holder or transferee, for the same aggregate principal amount that was
exchanged or transferred.

Section 2.6.  Exchange Offer:  Exchange of Restricted Notes for Exchange Note.
              ---------------------------------------------------------------

              The Issuer shall issue and the Trustee shall authenticate Exchange
Notes in exchange for Restricted Notes accepted for exchange in the Exchange
Offer as follows:

              The Issuer shall present the Trustee with an Officers' Certificate
certifying (i) that, upon issuance of the Exchange Notes, the transactions
contemplated by the Exchange Offer have been consummated and (ii) the aggregate
principal amount of Restricted Notes properly tendered in the Exchange Offer.

              The Trustee, upon receipt of (i) such Officers' Certificate, (ii)
an Opinion of Counsel with respect to matters set forth in the Registration
Rights Agreement and to the effect that the Exchange Notes have been registered
under the Securities Act and the Indenture has been qualified under the Trust
Indenture Act and (iii) an Issuer Order, shall:

              (A) authenticate the Global Notes representing the Exchange Notes
         (an "Exchange Global Note") in an aggregate principal amount equal to
         the aggregate principal amount of Restricted Notes represented by a
         Global Note and Definitive Restricted Notes indicated in such Officers'
         Certificate as having been properly tendered with terms substantially
         identical to such Restricted Notes, and substantially in the form of
         Exhibit A hereto, except that such Global Exchange Note (x) shall not
         contain the Restricted Notes Legend and (y) will not provide for any
         increase in the interest rate thereon under the circumstances set forth
         in such Restricted Notes, and

              (B) deliver such Exchange Global Note to the Book-Entry Depositary
         in exchange for such Restricted Notes.

              Notwithstanding anything contained in the Original Indenture, the
Restricted Notes and the Exchange Notes will vote and consent together on all
matters as one class and will not have the right to vote or consent as a
separate class on any matter.

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<PAGE>

                                 Article Three
                              Book-Entry Depositary

Section 3.1.  Depositary.
              ----------

              The Depository Trust Company or its nominee will be the
Depositary.

              The Global Notes may not be transferred except by the Depositary
to a nominee of the Depositary or by a nominee of the Depositary to the
Depositary or another nominee of the Depositary or to a successor Depositary.

                                  Article Four
                                  Miscellaneous

Section 4.1.  Execution of Supplemental Indenture.
              -----------------------------------

              This First Supplemental Indenture is executed and shall be
construed as an indenture supplemental to the Original Indenture and, as
provided in the Original Indenture, this First Supplemental Indenture forms a
part thereof.

Section 4.2.  Conflict with Trust Indenture Act.
              ---------------------------------

              If any provision hereof limits, qualifies or conflicts with
another provision hereof which is required to be included in this First
Supplemental Indenture by any of the provisions of the Trust Indenture Act, such
required provision shall control.

Section 4.3.  Effect of Headings.
              ------------------

              The Article and Section headings herein are for convenience only
and shall not affect the construction hereof.

Section 4.4.  Successors and Assigns.
              ----------------------

              All covenants and agreements in this First Supplemental Indenture
by the Issuer shall bind its successors and assigns, whether so expressed or
not.

Section 4.5.  Severability Clause.
              -------------------

              In case any provision in this First Supplemental Indenture or in
the Senior Notes shall be invalid, illegal or unenforceable, the validity,
legality and enforceability of the remaining provisions shall not in any way be
affected or impaired thereby.

Section 4.6.  Benefit of First Supplemental Indenture.
              ---------------------------------------

              Nothing in this First Supplemental Indenture or in the Senior
Notes, express or implied, shall give to any person, other than the parties
hereto and their successors hereunder and the Holders, any benefit or any legal
or equitable right, remedy or claim under this First Supplemental Indenture.

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<PAGE>

Section 4.7.  Execution and Counterparts.
              --------------------------

              This First Supplemental Indenture may be executed in any number of
counterparts, each of which shall be deemed to be an original, but all such
counterparts shall together constitute but one and the same instrument.

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<PAGE>

              IN WITNESS WHEREOF, the parties hereof have caused this First
Supplemental Indenture to be duly executed by their respective officers,
directors or signatories duly authorized thereto, all as of the day and year
first above written.

                                    IROQUOIS GAS TRANSMISSION
                                    SYSTEM, L.P., as the Issuer

                                    By: Iroquois Pipeline Operating Company,
                                    its Agent

                                    By  /s/ Paul Bailey
                                      ------------------------------------------
                                      Title:  Vice President and Chief
                                              Financial Officer

                                    By  /s/ Craig R. Frew
                                      ------------------------------------------
                                      Title:  President

                                    THE CHASE MANHATTAN BANK,
                                    as Trustee, Paying Agent, Security Registrar
                                    and Transfer Agent

                                    By  /s/ Denise S. Moore
                                      ------------------------------------------
                                      Title:  Assistant Treasurer

                                       11

<PAGE>
                                   EXHIBIT A

                           (to be filed by Amendment)EX-4.4

                   EXCHANGE AND REGISTRATION RIGHTS AGREEMENT

                                      among

                     IROQUOIS GAS TRANSMISSION SYSTEM, L.P.

                                    as Issuer

                                       and

                              CHASE SECURITIES INC.

                                       and

                     CREDIT SUISSE FIRST BOSTON CORPORATION

                                       as

                               Initial Purchasers

                    $200,000,000 8.68% Senior Notes due 2010

<PAGE>

                     IROQUOIS GAS TRANSMISSION SYSTEM, L.P.

                    $200,000,000 8.68% Senior Notes due 2010

                   EXCHANGE AND REGISTRATION RIGHTS AGREEMENT

                                                                 May 30, 2000

CHASE SECURITIES INC.
CREDIT SUISSE FIRST BOSTON CORPORATION
c/o Chase Securities Inc.
270 Park Avenue, 4th floor
New York, New York  10017

Ladies and Gentlemen:

              Iroquois Gas Transmission System, L.P., a Delaware limited
partnership (the "Company"), proposes to issue and sell to Chase Securities Inc.
("CSI") and Credit Suisse First Boston Corporation (together with CSI, the
"Initial Purchasers"), upon the terms and subject to the conditions set forth in
a purchase agreement dated May 22, 2000 (the "Purchase Agreement"), $200,000,000
8.68% Senior Notes due 2010 (the "Securities"). Capitalized terms used but not
defined herein shall have the meanings given to such terms in the Purchase
Agreement.

              As an inducement to the Initial Purchasers to enter into the
Purchase Agreement and in satisfaction of a condition to the obligations of the
Initial Purchasers thereunder, the Company agrees with the Initial Purchasers,
for the benefit of the holders (including the Initial Purchasers) of the
Securities, the Exchange Securities (as defined herein) and the Private Exchange
Securities (as defined herein) (collectively, the "Holders"), as follows:

              1. Registered Exchange Offer. To the extent not prohibited by any
applicable law or applicable interpretation of the staff of the SEC, the Company
shall (i) prepare and, not later than 60 days following the date of original
issuance of the Securities (the "Issue Date"), file with the Commission a
registration statement (the "Exchange Offer Registration Statement") on an
appropriate form under the Securities Act with respect to a proposed offer to
the Holders of the Securities (the "Registered Exchange Offer") to issue and
deliver to such Holders, in

<PAGE>

exchange for the Securities, a like aggregate principal amount of debt
securities of the Company (the "Exchange Securities") that are identical in all
material respects to the Securities, except for the transfer restrictions
relating to the Securities, (ii) use its reasonable best efforts to cause the
Exchange Offer Registration Statement to become effective under the Securities
Act no later than 150 days after the Issue Date and the Registered Exchange
Offer to be consummated no later than 180 days after the Issue Date and (iii)
keep the Exchange Offer Registration Statement effective for not less than 30
days (or longer, if required by applicable law) after the date on which notice
of the Registered Exchange Offer is mailed to the Holders (such period being
called the "Exchange Offer Registration Period"). The Exchange Securities will
be issued under the Indenture or an indenture (the "Exchange Securities
Indenture") between the Company and the Trustee or such other bank or trust
company that is reasonably satisfactory to the Initial Purchasers, as trustee
(the "Exchange Securities Trustee"), such indenture to be identical in all
material respects to the Indenture, except for the transfer restrictions
relating to the Securities (as described above).

              Upon the effectiveness of the Exchange Offer Registration
Statement, the Company shall promptly commence the Registered Exchange Offer, it
being the objective of such Registered Exchange Offer to enable each Holder
electing to exchange Securities for Exchange Securities (assuming that such
Holder (a) is not an affiliate of the Company or an Exchanging Dealer (as
defined herein) not complying with the requirements of the next sentence, (b) is
not an Initial Purchaser holding Securities that have, or that are reasonably
likely to have, the status of an unsold allotment in an initial distribution,
(c) acquires the Exchange Securities in the ordinary course of such Holder's
business and (d) has no arrangements or understandings with any person to
participate in the distribution of the Exchange Securities) and to trade such
Exchange Securities from and after their receipt without any limitations or
restrictions under the Securities Act and without material restrictions under
the securities laws of the several states of the United States. The Company, the
Initial Purchasers and each Exchanging Dealer acknowledge that, pursuant to
current interpretations by the Commission's staff of Section 5 of the Securities
Act, each Holder that is a broker-dealer electing to exchange Securities,
acquired for its own account as a result of market-making activities or other
trading activities, for Exchange Securities (an "Exchanging Dealer"), is
required to deliver a prospectus containing substantially the information set
forth in Annex A hereto on the cover, in Annex B hereto in the "Exchange Offer
Procedures" section and the "Purpose of the Exchange Offer" section and in Annex
C hereto in the "Plan of Distribution" section of such prospectus in connection
with a sale of any such Exchange Securities received by such Exchanging Dealer
pursuant to the Registered Exchange Offer.

              If, prior to the consummation of the Registered Exchange Offer,
any Holder holds any Securities acquired by it that have, or that are reasonably
likely to be determined to have, the status of an unsold allotment in an initial
distribution, or any Holder is not entitled to participate in the Registered
Exchange Offer, the Company shall, upon the request of any such Holder,
simultaneously with the delivery of the Exchange Securities in the Registered
Exchange Offer, issue and deliver to any such Holder, in exchange for the
Securities held by such Holder (the "Private Exchange"), a like aggregate
principal amount of debt securities of the Company (the "Private Exchange
Securities") that are identical in all material respects to the Exchange

                                       2
<PAGE>

Securities, except for the transfer restrictions relating to such Private
Exchange Securities. The Private Exchange Securities will be issued under the
same indenture as the Exchange Securities, and the Company shall use its
reasonable best efforts to cause the Private Exchange Securities to bear the
same CUSIP number as the Exchange Securities.

              In connection with the Registered Exchange Offer, the Company
shall:

              (a) mail to each Holder a copy of the prospectus forming part of
         the Exchange Offer Registration Statement, together with an appropriate
         letter of transmittal and related documents;

              (b) keep the Registered Exchange Offer open for not less than 30
         days (or longer, if required by applicable law) after the date on which
         notice of the Registered Exchange Offer is mailed to the Holders;

              (c) utilize the services of a depositary for the Registered
         Exchange Offer with an address in the Borough of Manhattan, The City of
         New York;

              (d) permit Holders to withdraw tendered Securities at any time
         prior to the close of business, New York City time, on the last
         business day on which the Registered Exchange Offer shall remain open;
         and

              (e) otherwise comply in all respects with all laws that are
         applicable to the Registered Exchange Offer.

              As soon as practicable after the close of the Registered Exchange
Offer and any Private Exchange, as the case may be, the Company shall:

              (a) accept for exchange all Securities tendered and not validly
         withdrawn pursuant to the Registered Exchange Offer and the Private
         Exchange;

              (b) deliver to the Trustee for cancellation all Securities so
         accepted for exchange; and

              (c) cause the Trustee or the Exchange Securities Trustee, as the
         case may be, promptly to authenticate and deliver to each Holder,
         Exchange Securities or Private Exchange Securities, as the case may be,
         equal in principal amount to the Securities of such Holder so accepted
         for exchange.

              The Company shall use its reasonable best efforts to keep the
Exchange Offer Registration Statement effective and to amend and supplement the
prospectus contained therein in order to permit such prospectus to be used by
all persons subject to the prospectus delivery requirements of the Securities
Act for such period of time as such persons must comply with such requirements
in order to resell the Exchange Securities; provided that (i) in the case where
such prospectus and any amendment or supplement thereto must be delivered by an
Exchanging Dealer, such period shall be the lesser of 180 days and the date on
which all Exchanging Dealers

                                       3
<PAGE>

have sold all Exchange Securities held by them and (ii) the Company shall make
such prospectus and any amendment or supplement thereto available to any
broker-dealer for use in connection with any resale of any Exchange Securities
for a period of not less than 90 days after the consummation of the Registered
Exchange Offer.

              The Indenture or the Exchange Securities Indenture, as the case
may be, shall provide that the Securities, the Exchange Securities and the
Private Exchange Securities shall vote and consent together on all matters as
one class and that none of the Securities, the Exchange Securities or the
Private Exchange Securities will have the right to vote or consent as a separate
class on any matter.

              Interest on each Exchange Security and Private Exchange Security
issued pursuant to the Registered Exchange Offer and in the Private Exchange
will accrue from the last interest payment date on which interest was paid on
the Securities surrendered in exchange therefor or, if no interest has been paid
on the Securities, from the Issue Date.

              Each Holder participating in the Registered Exchange Offer shall
be required to represent to the Company that at the time of the consummation of
the Registered Exchange Offer (i) any Exchange Securities received by such
Holder will be acquired in the ordinary course of business, (ii) such Holder
will have no arrangements or understanding with any person to participate in the
distribution of the Securities or the Exchange Securities within the meaning of
the Securities Act and (iii) such Holder is not an affiliate of the Company or,
if it is such an affiliate, such Holder will comply with the registration and
prospectus delivery requirements of the Securities Act to the extent applicable.

              Notwithstanding any other provisions hereof, the Company will
ensure that (i) any Exchange Offer Registration Statement and any amendment
thereto and any prospectus forming part thereof and any supplement thereto
complies in all material respects with the Securities Act and the rules and
regulations of the Commission thereunder, (ii) any Exchange Offer Registration
Statement and any amendment thereto does not, when it becomes effective, contain
an untrue statement of a material fact or omit to state a material fact required
to be stated therein or necessary to make the statements therein not misleading
and (iii) any prospectus forming part of any Exchange Offer Registration
Statement, and any supplement to such prospectus, does not, as of the
consummation of the Registered Exchange Offer, include an untrue statement of a
material fact or omit to state a material fact necessary in order to make the
statements therein, in the light of the circumstances under which they were
made, not misleading.

              2. Shelf Registration. If (i) because of any change in law or
applicable interpretations thereof by the Commission's staff the Company is not
permitted to effect the Registered Exchange Offer as contemplated by Section 1
hereof, or (ii) any Securities validly tendered pursuant to the Registered
Exchange Offer are not exchanged for Exchange Securities within 150 days after
the Issue Date, or (iii) any Initial Purchaser so requests with respect to
Securities or Private Exchange Securities not eligible to be exchanged for
Exchange Securities in the Registered Exchange Offer and held by it following
the consummation of the Registered Exchange Offer, or (iv) any applicable law or
interpretations do not permit any Holder to

                                       4
<PAGE>

participate in the Registered Exchange Offer, or (v) any Holder that
participates in the Registered Exchange Offer does not receive freely
transferable Exchange Securities in exchange for tendered Securities, or (vi)
the Company so elects, then the following provisions shall apply:

              (a) The Company shall use its reasonable best efforts to file as
promptly as practicable (but in no event more than 30 days after so required or
requested pursuant to this Section 2) with the Commission, and thereafter shall
use its reasonable best efforts to cause to be declared effective, a shelf
registration statement on an appropriate form under the Securities Act relating
to the offer and sale of the Transfer Restricted Securities (as defined below)
by the Holders thereof from time to time in accordance with the methods of
distribution set forth in such registration statement (hereafter, a "Shelf
Registration Statement" and, together with any Exchange Offer Registration
Statement, a "Registration Statement").

              (b) The Company shall use its reasonable best efforts to keep the
Shelf Registration Statement continuously effective in order to permit the
prospectus forming part thereof to be used by Holders of Transfer Restricted
Securities for a period ending on the earlier of (i) two years from the Issue
Date or such shorter period that will terminate when all the Transfer Restricted
Securities covered by the Shelf Registration Statement have been sold pursuant
thereto and (ii) the date on which the Securities become eligible for resale
without volume restrictions pursuant to Rule 144 under the Securities Act (in
any such case, such period being called the "Shelf Registration Period"). The
Company shall be deemed not to have used its reasonable best efforts to keep the
Shelf Registration Statement effective during the requisite period if it
voluntarily takes any action that would result in Holders of Transfer Restricted
Securities covered thereby not being able to offer and sell such Transfer
Restricted Securities during that period, unless such action is required by
applicable law

              (c) Notwithstanding any other provisions hereof, the Company will
ensure that (i) any Shelf Registration Statement and any amendment thereto and
any prospectus forming part thereof and any supplement thereto complies in all
material respects with the Securities Act and the rules and regulations of the
Commission thereunder, (ii) any Shelf Registration Statement and any amendment
thereto (in either case, other than with respect to information included therein
in reliance upon or in conformity with written information furnished to the
Company by or on behalf of any Holder specifically for use therein (the
"Holders' Information")) does not contain an untrue statement of a material fact
or omit to state a material fact required to be stated therein or necessary to
make the statements therein not misleading and (iii) any prospectus forming part
of any Shelf Registration Statement, and any supplement to such prospectus (in
either case, other than with respect to Holders' Information), does not include
an untrue statement of a material fact or omit to state a material fact
necessary in order to make the statements therein, in the light of the
circumstances under which they were made, not misleading.

              3. Liquidated Damages. (a) The parties hereto agree that the
Holders of Transfer Restricted Securities will suffer damages if the Company
fails to fulfill its obligations under Section 1 or Section 2, as applicable,
and that it would not be feasible to ascertain the extent of such damages.
Accordingly, if (i) the applicable Registration Statement is not filed with the
Commission on or prior to 45 days after the Issue Date, (ii) the Exchange Offer

                                       5
<PAGE>

Registration Statement or the Shelf Registration Statement, as the case may be,
is not declared effective within 150 days after the Issue Date (or in the case
of a Shelf Registration Statement required to be filed in response to a change
in law or the applicable interpretations of Commission's staff, if later, within
45 days after publication of the change in law or interpretation), (iii) the
Registered Exchange Offer is not consummated on or prior to 180 days after the
Issue Date, or (iv) the Shelf Registration Statement is filed and declared
effective within 150 days after the Issue Date (or in the case of a Shelf
Registration Statement required to be filed in response to a change in law or
the applicable interpretations of Commission's staff, if later, within 45 days
after publication of the change in law or interpretation) but shall thereafter
cease to be effective (at any time that the Company is obligated to maintain the
effectiveness thereof) without being succeeded within 30 days by an additional
Registration Statement filed and declared effective (each such event referred to
in clauses (i) through (iv), a "Registration Default"), then, as liquidated
damages for such Registration Default, the Company will be obligated to pay
additional interest ("Additional Interest") over and above the interest set
forth in the title of the Transfer Restricted Securities to each Holder of
Transfer Restricted Securities, during the period of one or more such
Registration Defaults, in an amount equal to 0.50% per annum on the principal
amount of Transfer Restricted Securities held by such Holder until (i) the
applicable Registration Statement is filed, (ii) the Exchange Offer Registration
Statement is declared effective and the Registered Exchange Offer is
consummated, (iii) the Shelf Registration Statement is declared effective or
(iv) the Shelf Registration Statement again becomes effective, as the case may
be. Following the cure of all Registration Defaults, the accrual of Additional
Interest will cease and the interest rate on the Securities will be reduced to
the interest rate in effect prior to such Registration Defaults. As used herein,
the term "Transfer Restricted Securities" means (i) each Security until the date
on which such Security has been exchanged for a freely transferable Exchange
Security in the Registered Exchange Offer, (ii) each Security or Private
Exchange Security until the date on which it has been effectively registered
under the Securities Act and disposed of in accordance with the Shelf
Registration Statement or (iii) each Security or Private Exchange Security until
the date on which it is distributed to the public pursuant to Rule 144 under the
Securities Act or is saleable pursuant to Rule 144(k) under the Securities Act.
Notwithstanding anything to the contrary in this Section 3(a), the Company shall
not be required to pay Additional Interest to a Holder of Transfer Restricted
Securities if such Holder failed to comply with its obligations to make the
representations set forth in the second to last paragraph of Section 1 or failed
to provide the information required to be provided by it, if any, pursuant to
Section 4(n).

              (a) The Company shall notify the Trustee and the Paying Agent
under the Indenture promptly upon the happening of each and every Registration
Default. The Company shall pay the Additional Interest due on the Transfer
Restricted Securities by depositing with the Paying Agent (which may not be the
Company for these purposes), in trust, for the benefit of the Holders thereof,
prior to 10:00 a.m., New York City time, on the next interest payment date
specified by the Indenture and the Securities, sums sufficient to pay the
Additional Interest then due. The Additional Interest due shall be payable on
each interest payment date specified by the Indenture and the Securities to the
record holder entitled to receive the interest payment to be made on such date.
Each obligation to pay Additional Interest shall be deemed to accrue from and
including the date of the applicable Registration Default.

                                       6
<PAGE>

              (b) The parties hereto agree that the liquidated damages provided
for in this Section 3 constitute a reasonable estimate of and are intended to
constitute the sole damages that will be suffered by Holders of Transfer
Restricted Securities by reason of the failure of (i) the Shelf Registration
Statement or the Exchange Offer Registration Statement to be filed, (ii) the
Shelf Registration Statement to remain effective or (iii) the Exchange Offer
Registration Statement to be declared effective and the Registered Exchange
Offer to be consummated, in each case to the extent required by this Agreement.

              4. Registration Procedures. In connection with any Registration
Statement, the following provisions shall apply:

              (a) The Company shall (i) furnish to each Initial Purchaser, prior
to the filing thereof with the Commission, a copy of the Registration Statement
and each amendment thereof and each supplement, if any, to the prospectus
included therein and shall use its reasonable best efforts to reflect in each
such document, when so filed with the Commission, such comments as any Initial
Purchaser may reasonably propose; (ii) include the information set forth in
Annex A hereto on the cover, in Annex B hereto in the "Exchange Offer
Procedures" section and the "Purpose of the Exchange Offer" section and in Annex
C hereto in the "Plan of Distribution" section of the prospectus forming a part
of the Exchange Offer Registration Statement, and include the information set
forth in Annex D hereto in the Letter of Transmittal delivered pursuant to the
Registered Exchange Offer; and (iii) if requested by any Initial Purchaser,
include the information required by Items 507 or 508 of Regulation S-K, as
applicable, in the prospectus forming a part of the Exchange Offer Registration
Statement.

              (b) The Company shall advise each Initial Purchaser, each
Exchanging Dealer and the Holders (if applicable) and, if requested by any such
person, confirm such advice in writing (which advice pursuant to clauses
(ii)-(v) hereof shall be accompanied by an instruction to suspend the use of the
prospectus until the requisite changes have been made):

              (i) when any Registration Statement and any amendment thereto has
         been filed with the Commission and when such Registration Statement or
         any post-effective amendment thereto has become effective;

              (ii) of any request by the Commission for amendments or
         supplements to any Registration Statement or the prospectus included
         therein or for additional information;

              (iii) of the issuance by the Commission of any stop order
         suspending the effectiveness of any Registration Statement or the
         initiation of any proceedings for that purpose;

              (iv) of the receipt by the Company of any notification with
         respect to the suspension of the qualification of the Securities, the
         Exchange Securities or the Private Exchange Securities for sale in any
         jurisdiction or the initiation or threatening of any proceeding for
         such purpose; and

                                       7
<PAGE>

              (v) of the happening of any event that requires the making of any
         changes in any Registration Statement or the prospectus included
         therein in order that the statements therein are not misleading and do
         not omit to state a material fact required to be stated therein or
         necessary to make the statements therein not misleading.

              (c) The Company will make every reasonable effort to obtain the
withdrawal at the earliest possible time of any order suspending the
effectiveness of any Registration Statement.

              (d) The Company will furnish to each Holder of Transfer Restricted
Securities included within the coverage of any Shelf Registration Statement,
without charge, at least one conformed copy of such Shelf Registration Statement
and any post-effective amendment thereto, including financial statements and
schedules and, if any such Holder so requests in writing, all exhibits thereto
(including those, if any, incorporated by reference).

              (e) The Company will, during the Shelf Registration Period,
promptly deliver to each Holder of Transfer Restricted Securities included
within the coverage of any Shelf Registration Statement, without charge, as many
copies of the prospectus (including each preliminary prospectus) included in
such Shelf Registration Statement and any amendment or supplement thereto as
such Holder may reasonably request; and the Company consents to the use of such
prospectus or any amendment or supplement thereto by each of the selling Holders
of Transfer Restricted Securities in connection with the offer and sale of the
Transfer Restricted Securities covered by such prospectus or any amendment or
supplement thereto.

              (f) The Company will furnish to each Initial Purchaser and each
Exchanging Dealer, and to any other Holder who so requests, without charge, at
least one conformed copy of the Exchange Offer Registration Statement and any
post-effective amendment thereto, including financial statements and schedules
and, if any Initial Purchaser or Exchanging Dealer or any such Holder so
requests in writing, all exhibits thereto (including those, if any, incorporated
by reference).

              (g) The Company will, during the Exchange Offer Registration
Period or the Shelf Registration Period, as applicable, promptly deliver to each
Initial Purchaser, each Exchanging Dealer and such other persons that are
required to deliver a prospectus following the Registered Exchange Offer,
without charge, as many copies of the final prospectus included in the Exchange
Offer Registration Statement or the Shelf Registration Statement and any
amendment or supplement thereto as such Initial Purchaser, Exchanging Dealer or
other persons may reasonably request; and the Company consents to the use of
such prospectus or any amendment or supplement thereto by any such Initial
Purchaser, Exchanging Dealer or other persons, as applicable, as aforesaid.

              (h) Prior to the effective date of any Registration Statement, the
Company will use its reasonable best efforts to register or qualify, or
cooperate with the Holders of Securities, Exchange Securities or Private
Exchange Securities included therein and their respective counsel in connection
with the registration or qualification of, such Securities, Exchange Securities
or Private Exchange Securities for offer and sale under the securities or blue
sky laws of such

                                       8
<PAGE>

jurisdictions as any such Holder reasonably requests in writing and do any and
all other acts or things necessary or advisable to enable the offer and sale in
such jurisdictions of the Securities, Exchange Securities or Private Exchange
Securities covered by such Registration Statement; provided that the Company
will not be required to qualify generally to do business in any jurisdiction
where it is not then so qualified or to take any action which would subject it
to general service of process or to taxation in any such jurisdiction where it
is not then so subject.

              (i) The Company will cooperate with the Holders of Securities,
Exchange Securities or Private Exchange Securities to facilitate the timely
preparation and delivery of certificates representing Securities, Exchange
Securities or Private Exchange Securities to be sold pursuant to any
Registration Statement free of any restrictive legends and in such denominations
and registered in such names as the Holders thereof may request in writing prior
to sales of Securities, Exchange Securities or Private Exchange Securities
pursuant to such Registration Statement.

              (j) If any event contemplated by Section 4(b)(ii) through (v)
occurs during the period for which the Company is required to maintain an
effective Registration Statement, the Company will promptly prepare and file
with the Commission a post-effective amendment to the Registration Statement or
a supplement to the related prospectus or file any other required document so
that, as thereafter delivered to purchasers of the Securities, Exchange
Securities or Private Exchange Securities from a Holder, the prospectus will not
include an untrue statement of a material fact or omit to state a material fact
necessary in order to make the statements therein, in the light of the
circumstances under which they were made, not misleading.

              (k) Not later than the effective date of the applicable
Registration Statement, the Company will provide a CUSIP number for the
Securities, the Exchange Securities and the Private Exchange Securities, as the
case may be, and provide the applicable trustee with printed certificates for
the Securities, the Exchange Securities or the Private Exchange Securities, as
the case may be, in a form eligible for deposit with The Depository Trust
Company.

              (l) The Company will comply with all applicable rules and
regulations of the Commission and will make generally available to its security
holders as soon as practicable after the effective date of the applicable
Registration Statement an earning statement satisfying the provisions of Section
11(a) of the Securities Act; provided that in no event shall such earning
statement be delivered later than 45 days after the end of a 12-month period (or
90 days, if such period is a fiscal year) beginning with the first month of the
Company's first fiscal quarter commencing after the effective date of the
applicable Registration Statement, which statement shall cover such 12-month
period.

              (m) The Company will cause the Indenture or the Exchange
Securities Indenture, as the case may be, to be qualified under the Trust
Indenture Act as required by applicable law in a timely manner.

              (n) The Company may require each Holder of Transfer Restricted
Securities to be registered pursuant to any Shelf Registration Statement to
furnish to the Company such information concerning the Holder and the
distribution of such Transfer Restricted Securities as

                                       9
<PAGE>

the Company may from time to time reasonably require for inclusion in such Shelf
Registration Statement, and the Company may exclude from such registration the
Transfer Restricted Securities of any Holder that fails to furnish such
information within a reasonable time after receiving such request.

              (o) In the case of a Shelf Registration Statement, each Holder of
Transfer Restricted Securities to be registered pursuant thereto agrees by
acquisition of such Transfer Restricted Securities that, upon receipt of any
notice from the Company pursuant to Section 4(b)(ii) through (v), such Holder
will discontinue disposition of such Transfer Restricted Securities until such
Holder's receipt of copies of the supplemental or amended prospectus
contemplated by Section 4(j) or until advised in writing (the "Advice") by the
Company that the use of the applicable prospectus may be resumed. If the Company
shall give any notice under Section 4(b)(ii) through (v) during the period that
the Company is required to maintain an effective Registration Statement (the
"Effectiveness Period"), such Effectiveness Period shall be extended by the
number of days during such period from and including the date of the giving of
such notice to and including the date when each seller of Transfer Restricted
Securities covered by such Registration Statement shall have received (x) the
copies of the supplemental or amended prospectus contemplated by Section 4(j)
(if an amended or supplemental prospectus is required) or (y) the Advice (if no
amended or supplemental prospectus is required).

              (p) In the case of a Shelf Registration Statement, the Company
shall enter into such customary agreements (including, if requested, an
underwriting agreement in customary form) and take all such other action, if
any, as Holders of a majority in aggregate principal amount of the Securities,
Exchange Securities and Private Exchange Securities being sold or the managing
underwriters (if any) shall reasonably request in order to facilitate any
disposition of Securities, Exchange Securities or Private Exchange Securities
pursuant to such Shelf Registration Statement.

              (q) In the case of a Shelf Registration Statement, the Company
shall (i) make reasonably available for inspection by a representative of, and
Special Counsel (as defined below) acting for, Holders of a majority in
aggregate principal amount of the Securities, Exchange Securities and Private
Exchange Securities being sold and any underwriter participating in any
disposition of Securities, Exchange Securities or Private Exchange Securities
pursuant to such Shelf Registration Statement, all relevant financial and other
records, pertinent corporate documents and properties of the Company and its
subsidiaries and (ii) use its reasonable best efforts to have its officers,
directors, employees, accountants and counsel supply all relevant information
reasonably requested by such representative, Special Counsel or any such
underwriter (an "Inspector") in connection with such Shelf Registration
Statement.

              (r) In the case of a Shelf Registration Statement, the Company
shall, if requested by Holders of a majority in aggregate principal amount of
the Securities, Exchange Securities and Private Exchange Securities being sold,
their Special Counsel or the managing underwriters (if any) in connection with
such Shelf Registration Statement, use its reasonable best efforts to cause (i)
its counsel to deliver an opinion relating to the Shelf Registration Statement
and the Securities, Exchange Securities or Private Exchange Securities, as
applicable, in customary form,

                                       10
<PAGE>

(ii) its officers to execute and deliver all customary documents and
certificates requested by Holders of a majority in aggregate principal amount of
the Securities, Exchange Securities and Private Exchange Securities being sold,
their Special Counsel or the managing underwriters (if any) and (iii) its
independent public accountants to provide a comfort letter or letters in
customary form, subject to receipt of appropriate documentation as contemplated,
and only if permitted, by Statement of Auditing Standards No. 72.

              5. Registration Expenses. The Company will bear all expenses
incurred in connection with the performance of its obligations under Sections 1,
2, 3 and 4 and the Company will reimburse the Initial Purchasers and the Holders
for the reasonable fees and disbursements of one firm of attorneys (in addition
to any local counsel) chosen by the Holders of a majority in aggregate principal
amount of the Securities, the Exchange Securities and the Private Exchange
Securities to be sold pursuant to each Registration Statement (the "Special
Counsel") acting for the Initial Purchasers or Holders in connection therewith.

              6. Indemnification. (a) In the event of a Shelf Registration
Statement or in connection with any prospectus delivery pursuant to an Exchange
Offer Registration Statement by an Initial Purchaser or Exchanging Dealer, as
applicable, the Company shall indemnify and hold harmless each Holder
(including, without limitation, any such Initial Purchaser or Exchanging
Dealer), its affiliates, their respective officers, directors, employees,
representatives and agents, and each person, if any, who controls such Holder
within the meaning of the Securities Act or the Exchange Act (collectively
referred to for purposes of this Section 6 and Section 7 as a Holder) from and
against any loss, claim, damage or liability, joint or several, or any action in
respect thereof (including, without limitation, any loss, claim, damage,
liability or action relating to purchases and sales of Securities, Exchange
Securities or Private Exchange Securities), to which that Holder may become
subject, whether commenced or threatened, under the Securities Act, the Exchange
Act, any other federal or state statutory law or regulation, at common law or
otherwise, insofar as such loss, claim, damage, liability or action arises out
of, or is based upon, (i) any untrue statement or alleged untrue statement of a
material fact contained in any such Registration Statement or any prospectus
forming part thereof or in any amendment or supplement thereto or (ii) the
omission or alleged omission to state therein a material fact required to be
stated therein or necessary in order to make the statements therein, in the
light of the circumstances under which they were made, not misleading, and shall
reimburse each Holder promptly upon demand for any legal or other expenses
reasonably incurred by that Holder, in accordance with Section 6(c), in
connection with investigating or defending or preparing to defend against or
appearing as a third party witness in connection with any such loss, claim,
damage, liability or action as such expenses are incurred; provided, however,
that the Company shall not be liable in any such case to the extent that any
such loss, claim, damage, liability or action arises out of, or is based upon,
an untrue statement or alleged untrue statement in or omission or alleged
omission from any of such documents in reliance upon and in conformity with any
Holders' Information; and provided, further, that with respect to any such
untrue statement in or omission from any related preliminary prospectus, the
indemnity agreement contained in this Section 6(a) shall not inure to the
benefit of any Holder from whom the person asserting any such loss, claim,
damage, liability or action received Securities, Exchange Securities or Private
Exchange Securities to the extent that such loss, claim, damage, liability or

                                       11
<PAGE>

action of or with respect to such Holder results from the fact that both (A) a
copy of the final prospectus was not sent or given to such person at or prior to
the written confirmation of the sale of such Securities, Exchange Securities or
Private Exchange Securities to such person and (B) the untrue statement in or
omission from the related preliminary prospectus was corrected in the final
prospectus unless, in either case, such failure to deliver the final prospectus
was a result of non-compliance by the Company with Section 4(d), 4(e), 4(f) or
4(g).

              (b) In the event of a Shelf Registration Statement, each Holder
shall indemnify and hold harmless the Company, its affiliates, their respective
officers, directors, employees, representatives and agents, and each person, if
any, who controls the Company within the meaning of the Securities Act or the
Exchange Act (collectively referred to for purposes of this Section 6(b) and
Section 7 as the Company), from and against any loss, claim, damage or
liability, joint or several, or any action in respect thereof, to which the
Company may become subject, whether commenced or threatened, under the
Securities Act, the Exchange Act, any other federal or state statutory law or
regulation, at common law or otherwise, insofar as such loss, claim, damage,
liability or action arises out of, or is based upon, (i) any untrue statement or
alleged untrue statement of a material fact contained in any such Registration
Statement or any prospectus forming part thereof or in any amendment or
supplement thereto or (ii) the omission or alleged omission to state therein a
material fact required to be stated therein or necessary in order to make the
statements therein, in the light of the circumstances under which they were
made, not misleading, but in each case only to the extent that the untrue
statement or alleged untrue statement or omission or alleged omission was made
in reliance upon and in conformity with any Holders' Information furnished to
the Company by such Holder, and shall reimburse the Company for any legal or
other expenses reasonably incurred by the Company in connection with
investigating or defending or preparing to defend against or appearing as a
third party witness in connection with any such loss, claim, damage, liability
or action as such expenses are incurred; provided, however, that no such Holder
shall be liable for any indemnity claims hereunder in excess of the amount of
net proceeds received by such Holder from the sale of Securities, Exchange
Securities or Private Exchange Securities pursuant to such Shelf Registration
Statement.

              (c) Promptly after receipt by an indemnified party under this
Section 6 of notice of any claim or the commencement of any action, the
indemnified party shall, if a claim in respect thereof is to be made against the
indemnifying party pursuant to Section 6(a) or 6(b), notify the indemnifying
party in writing of the claim or the commencement of that action; provided,
however, that the failure to notify the indemnifying party shall not relieve it
from any liability which it may have under this Section 6 except to the extent
that it has been materially prejudiced (through the forfeiture of substantive
rights or defenses) by such failure; and provided, further, that the failure to
notify the indemnifying party shall not relieve it from any liability which it
may have to an indemnified party otherwise than under this Section 6. If any
such claim or action shall be brought against an indemnified party, and it shall
notify the indemnifying party thereof, the indemnifying party shall be entitled
to participate therein and, to the extent that it wishes, jointly with any other
similarly notified indemnifying party, to assume the defense thereof with
counsel reasonably satisfactory to the indemnified party. After notice from the
indemnifying party to the indemnified party of its election to assume the
defense of

                                       12
<PAGE>

such claim or action, the indemnifying party shall not be liable to the
indemnified party under this Section 6 for any legal or other expenses
subsequently incurred by the indemnified party in connection with the defense
thereof other than the reasonable costs of investigation; provided, however,
that an indemnified party shall have the right to employ its own counsel in any
such action, but the fees, expenses and other charges of such counsel for the
indemnified party will be at the expense of such indemnified party unless (1)
the employment of counsel by the indemnified party has been authorized in
writing by the indemnifying party, (2) the indemnified party has reasonably
concluded (based upon advice of counsel to the indemnified party) that there may
be legal defenses available to it or other indemnified parties that are
different from or in addition to those available to the indemnifying party, (3)
a conflict or potential conflict exists (based upon advice of counsel to the
indemnified party) between the indemnified party and the indemnifying party (in
which case the indemnifying party will not have the right to direct the defense
of such action on behalf of the indemnified party) or (4) the indemnifying party
has not in fact employed counsel reasonably satisfactory to the indemnified
party to assume the defense of such action within a reasonable time after
receiving notice of the commencement of the action, in each of which cases the
reasonable fees, disbursements and other charges of counsel will be at the
expense of the indemnifying party or parties. It is understood that the
indemnifying party or parties shall not, in connection with any proceeding or
related proceedings in the same jurisdiction, be liable for the reasonable fees,
disbursements and other charges of more than one separate firm of attorneys (in
addition to any local counsel) at any one time for all such indemnified party or
parties. Each indemnified party, as a condition of the indemnity agreements
contained in Sections 6(a) and 6(b), shall use all reasonable efforts to
cooperate with the indemnifying party in the defense of any such action or
claim. No indemnifying party shall be liable for any settlement of any such
action effected without its written consent (which consent shall not be
unreasonably withheld), but if settled with its written consent or if there be a
final judgment for the plaintiff in any such action, the indemnifying party
agrees to indemnify and hold harmless any indemnified party from and against any
loss or liability by reason of such settlement or judgment. No indemnifying
party shall, without the prior written consent of the indemnified party (which
consent shall not be unreasonably withheld), effect any settlement of any
pending or threatened proceeding in respect of which any indemnified party is or
could have been a party and indemnity could have been sought hereunder by such
indemnified party, unless such settlement includes an unconditional release of
such indemnified party from all liability on claims that are the subject matter
of such proceeding.

              7. Contribution. If the indemnification provided for in Section 6
is unavailable or insufficient to hold harmless an indemnified party under
Section 6(a) or 6(b), then each indemnifying party shall, in lieu of
indemnifying such indemnified party, contribute to the amount paid or payable by
such indemnified party as a result of such loss, claim, damage or liability, or
action in respect thereof, (i) in such proportion as shall be appropriate to
reflect the relative benefits received by the Company from the offering and sale
of the Securities, on the one hand, and a Holder with respect to the sale by
such Holder of Securities, Exchange Securities or Private Exchange Securities,
on the other, or (ii) if the allocation provided by clause (i) above is not
permitted by applicable law, in such proportion as is appropriate to reflect not
only the relative benefits referred to in clause (i) above but also the relative
fault of the Company on the one hand and such Holder on the other with respect
to the statements or omissions that resulted

                                       13
<PAGE>

in such loss, claim, damage or liability, or action in respect thereof, as well
as any other relevant equitable considerations.. The relative benefits received
by the Company on the one hand and a Holder on the other with respect to such
offering and such sale shall be deemed to be in the same proportion as the total
net proceeds from the offering of the Securities (before deducting expenses)
received by or on behalf of the Company as set forth in the table on the cover
of the Offering Memorandum, on the one hand, bear to the total proceeds received
by such Holder with respect to its sale of Securities, Exchange Securities or
Private Exchange Securities, on the other. The relative fault shall be
determined by reference to, among other things, whether the untrue or alleged
untrue statement of a material fact or the omission or alleged omission to state
a material fact relates to the Company or information supplied by the Company on
the one hand or to any Holders' Information supplied by such Holder on the
other, the intent of the parties and their relative knowledge, access to
information and opportunity to correct or prevent such untrue statement or
omission. The parties hereto agree that it would not be just and equitable if
contributions pursuant to this Section 7 were to be determined by pro rata
allocation or by any other method of allocation that does not take into account
the equitable considerations referred to herein. The amount paid or payable by
an indemnified party as a result of the loss, claim, damage or liability, or
action in respect thereof, referred to above in this Section 7 shall be deemed
to include, for purposes of this Section 7, any legal or other expenses
reasonably incurred by such indemnified party in connection with investigating
or defending or preparing to defend any such action or claim. Notwithstanding
the provisions of this Section 7, an indemnifying party that is a Holder of
Securities, Exchange Securities or Private Exchange Securities shall not be
required to contribute any amount in excess of the amount by which the total
price at which the Securities, Exchange Securities or Private Exchange
Securities sold by such indemnifying party to any purchaser exceeds the amount
of any damages which such indemnifying party has otherwise paid or become liable
to pay by reason of any untrue or alleged untrue statement or omission or
alleged omission. No person guilty of fraudulent misrepresentation (within the
meaning of Section 11(f) of the Securities Act) shall be entitled to
contribution from any person who was not guilty of such fraudulent
misrepresentation.

              8. Rules 144 and 144A. The Company shall use its reasonable best
efforts to file the reports required to be filed by it under the Securities Act
and the Exchange Act in a timely manner and, if at any time the Company is not
required to file such reports, it will, upon the written request of any Holder
of Transfer Restricted Securities, make publicly available other information so
long as necessary to permit sales of such Holder's securities pursuant to Rules
144 and 144A. The Company covenants that it will take such further action as any
Holder of Transfer Restricted Securities may reasonably request, all to the
extent required from time to time to enable such Holder to sell Transfer
Restricted Securities without registration under the Securities Act within the
limitation of the exemptions provided by Rules 144 and 144A (including, without
limitation, the requirements of Rule 144A(d)(4)). Upon the written request of
any Holder of Transfer Restricted Securities, the Company shall deliver to such
Holder a written statement as to whether it has complied with such requirements.
Notwithstanding the foregoing, nothing in this Section 8 shall be deemed to
require the Company to register any of its securities pursuant to the Exchange
Act.

                                       14
<PAGE>

              9. Underwritten Registrations. If any of the Transfer Restricted
Securities covered by any Shelf Registration Statement are to be sold in an
underwritten offering, the investment banker or investment bankers and manager
or managers that will administer the offering will be selected by the Holders of
a majority in aggregate principal amount of such Transfer Restricted Securities
included in such offering, subject to the consent of the Company (which shall
not be unreasonably withheld or delayed), and such Holders shall be responsible
for all underwriting commissions and discounts in connection therewith.

              No person may participate in any underwritten registration
hereunder unless such person (i) agrees to sell such person's Transfer
Restricted Securities on the basis reasonably provided in any underwriting
arrangements approved by the persons entitled hereunder to approve such
arrangements and (ii) completes and executes all questionnaires, powers of
attorney, indemnities, underwriting agreements and other documents reasonably
required under the terms of such underwriting arrangements.

              10. Miscellaneous (a) Amendments and Waivers. The provisions of
this Agreement may not be amended, modified or supplemented, and waivers or
consents to departures from the provisions hereof may not be given, unless the
Company has obtained the written consent of Holders of a majority in aggregate
principal amount of the Securities, the Exchange Securities and the Private
Exchange Securities, taken as a single class. Notwithstanding the foregoing, a
waiver or consent to depart from the provisions hereof with respect to a matter
that relates exclusively to the rights of Holders whose Securities, Exchange
Securities or Private Exchange Securities are being sold pursuant to a
Registration Statement and that does not directly or indirectly affect the
rights of other Holders may be given by Holders of a majority in aggregate
principal amount of the Securities, the Exchange Securities and the Private
Exchange Securities being sold by such Holders pursuant to such Registration
Statement.

              (b) Notices. All notices and other communications provided for or
permitted hereunder shall be made in writing by hand-delivery, first-class mail,
telecopier or air courier guaranteeing next-day delivery:

              (i) if to a Holder, at the most current address given by such
         Holder to the Company in accordance with the provisions of this Section
         10(b), which address initially is, with respect to each Holder, the
         address of such Holder maintained by the Registrar under the Indenture,
         with a copy in like manner to Chase Securities Inc. and Credit Suisse
         First Boston Corporation;

              (ii) if to an Initial Purchaser, initially at its address set
         forth in the Purchase Agreement; and

              (iii) if to the Company, initially at the address of the Company
         set forth in the Purchase Agreement.

              All such notices and communications shall be deemed to have been
duly given: when delivered by hand, if personally delivered; one business day
after being delivered to a

                                       15
<PAGE>

next-day air courier; five business days after being deposited in the mail; and
when receipt is acknowledged by the recipient's telecopier machine, if sent by
telecopier.

              (c) Successors And Assigns. This Agreement shall be binding upon
the Company and its successors and assigns.

              (d) Counterparts. This Agreement may be executed in any number of
counterparts (which may be delivered in original form or by telecopier) and by
the parties hereto in separate counterparts, each of which when so executed
shall be deemed to be an original and all of which taken together shall
constitute one and the same agreement.

              (e) Definition of Terms. For purposes of this Agreement, (a) the
term "business day" means any day on which the New York Stock Exchange, Inc. is
open for trading, (b) the term "subsidiary" has the meaning set forth in Rule
405 under the Securities Act and (c) except where otherwise expressly provided,
the term "affiliate" has the meaning set forth in Rule 405 under the Securities
Act.

              (f) Headings. The headings in this Agreement are for convenience
of reference only and shall not limit or otherwise affect the meaning hereof.

              (g) Governing Law. This Agreement shall be governed by and
construed in accordance with the laws of the State of New York.

              (h) Remedies. In the event of a breach by the Company or by any
Holder of any of their obligations under this Agreement, each Holder or the
Company, as the case may be, in addition to being entitled to exercise all
rights granted by law, including recovery of damages (other than the recovery of
damages for a breach by the Company of its obligations under Sections 1 or 2
hereof for which liquidated damages have been paid pursuant to Section 3
hereof), will be entitled to specific performance of its rights under this
Agreement. The Company and each Holder agree that monetary damages would not be
adequate compensation for any loss incurred by reason of a breach by it of any
of the provisions of this Agreement and hereby further agree that, in the event
of any action for specific performance in respect of such breach, it shall waive
the defense that a remedy at law would be adequate.

              (i) No Inconsistent Agreements. The Company represents, warrants
and agrees that (i) it has not entered into, shall not, on or after the date of
this Agreement, enter into any agreement that is inconsistent with the rights
granted to the Holders in this Agreement or otherwise conflicts with the
provisions hereof, (ii) it has not previously entered into any agreement which
remains in effect granting any registration rights with respect to any of its
debt securities to any person and (iii) without limiting the generality of the
foregoing, without the written consent of the Holders of a majority in aggregate
principal amount of the then outstanding Transfer Restricted Securities, it
shall not grant to any person the right to request the Company to register any
debt securities of the Company under the Securities Act unless the rights so
granted are not in conflict or inconsistent with the provisions of this
Agreement.

                                       16
<PAGE>

              (j) Severability. The remedies provided herein are cumulative and
not exclusive of any remedies provided by law. If any term, provision, covenant
or restriction of this Agreement is held by a court of competent jurisdiction to
be invalid, illegal, void or unenforceable, the remainder of the terms,
provisions, covenants and restrictions set forth herein shall remain in full
force and effect and shall in no way be affected, impaired or invalidated, and
the parties hereto shall use their reasonable best efforts to find and employ an
alternative means to achieve the same or substantially the same result as that
contemplated by such term, provision, covenant or restriction. It is hereby
stipulated and declared to be the intention of the parties that they would have
executed the remaining terms, provisions, covenants and restrictions without
including any of such that may be hereafter declared invalid, illegal, void or
unenforceable.

                                       17
<PAGE>

              Please confirm that the foregoing correctly sets forth the
agreement among the Company and the Initial Purchasers.

Very truly yours,

                                   IROQUOIS GAS TRANSMISSION SYSTEM, L.P.

                                   By: Iroquois Pipeline Operating Company, its
                                        Agent

                                   By:  /s/
                                       -----------------------------
                                       Name:  Paul Bailey
                                       Title:  Vice Predident and Chief
                                               Financial Officer

                                   By:  /s/
                                       -----------------------------
                                       Name:  Craig R. Frew
                                       Title: President

Accepted:

CHASE SECURITIES INC.

By: ____________________________
    Authorized Signatory

CREDIT SUISSE FIRST BOSTON CORPORATION

By: ____________________________
    Authorized Signatory

                                       18

<PAGE>

                                                                        ANNEX A

              Each broker-dealer that receives Exchange Securities for its own
account pursuant to the Registered Exchange Offer must acknowledge that it will
deliver a prospectus in connection with any resale of such Exchange Securities.
The Letter of Transmittal states that by so acknowledging and by delivering a
prospectus, a broker-dealer will not be deemed to admit that it is an
"underwriter" within the meaning of the Securities Act. 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 Exchange Securities received in exchange for
Securities where such Securities were acquired by such broker-dealer as a result
of market-making activities or other trading activities. The Company has agreed
that, for a period of 180 days after the Expiration Date (as defined herein), it
will make this Prospectus available to any broker-dealer for use in connection
with any such resale. See "Plan of Distribution"

<PAGE>

                                                                         ANNEX B

              Each broker-dealer that receives Exchange Securities for its own
account in exchange for Securities, where such Securities were acquired by such
broker-dealer as a result of market-making activities or other trading
activities, must acknowledge that it will deliver a prospectus in connection
with any resale of such Exchange Securities. See "Plan of Distribution".

<PAGE>

                                                                         ANNEX C

                              PLAN OF DISTRIBUTION

              Each broker-dealer that receives Exchange Securities for its own
account pursuant to the Registered Exchange Offer must acknowledge that it will
deliver a prospectus in connection with any resale of such Exchange Securities.
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 Exchange Securities
received in exchange for Securities where such Securities were acquired as a
result of market-making activities or other trading activities. The Company has
agreed that, for a period of 180 days after the Expiration Date, it will make
this prospectus, as amended or supplemented, available to any broker-dealer for
use in connection with any such resale. In addition, until _______________,
2000, all dealers effecting transactions in the Exchange Securities may be
required to deliver a prospectus.

              The Company will not receive any proceeds from any sale of
Exchange Securities by broker-dealers. Exchange Securities received by
broker-dealers for their own account pursuant to the Registered 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 Exchange Securities 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 at negotiated prices. Any such resale 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 or the purchasers of any such Exchange Securities. Any
broker-dealer that resells Exchange Securities that were received by it for its
own account pursuant to the Registered Exchange Offer and any broker or dealer
that participates in a distribution of such Exchange Securities may be deemed to
be an "underwriter" within the meaning of the Securities Act and any profit on
any such resale of Exchange Securities and any commission or concessions
received by any such persons may be deemed to be underwriting compensation under
the Securities Act. The Letter of Transmittal states that, by acknowledging that
it will deliver and by 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 Expiration Date the Company
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. The Company has agreed to pay all expenses
incident to the Registered Exchange Offer (including the expenses of one counsel
for the Holders of the Securities) other than commissions or concessions of any
broker-dealers and will indemnify the Holders of the Securities (including any
broker-dealers) against certain liabilities, including liabilities under the
Securities Act.

<PAGE>

                                                                         ANNEX D

              o CHECK HERE IF YOU ARE A BROKER-DEALER AND
              WISH TO RECEIVE 10 ADDITIONAL COPIES OF THE
              PROSPECTUS AND 10 COPIES OF ANY AMENDMENTS OR
              SUPPLEMENTS THERETO.

              Name:
              Address:

If the undersigned is not a broker-dealer, the undersigned represents that it is
not engaged in, and does not intend to engage in, a distribution of Exchange
Securities. If the undersigned is a broker-dealer that will receive Exchange
Securities for its own account in exchange for Securities that were acquired as
a result of market-making activities or other trading activities, it
acknowledges that it will deliver a prospectus in connection with any resale of
such Exchange Securities; however, by so acknowledging and by delivering a
prospectus, the undersigned will not be deemed to admit that it is an
"underwriter" within the meaning of the Securities Act.

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