<PAGE>

                                                                     EXHIBIT 4.5

               [Form of Supplemental Indenture to Senior Indenture
                         relating to Medium-Term Notes]




                        CONSOLIDATED NATURAL GAS COMPANY
                                     Issuer


                                       TO

                  BANK ONE TRUST COMPANY, NATIONAL ASSOCIATION
                                     Trustee


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


                          Fourth Supplemental Indenture

                           Dated as of ________, 2002


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


                                 $1,500,000,000

                           Medium-Term Notes, Series A
<PAGE>

                               TABLE OF CONTENTS/*/

<TABLE>
<CAPTION>
                                    ARTICLE I
                           MEDIUM-TERM NOTES, SERIES A
       <S>                                                                                <C>
       SECTION 101.  Establishment.........................................................1
       SECTION 102.  Definitions...........................................................2
       SECTION 103.  Payment of Principal and Interest.....................................7
       SECTION 104.  Fixed Rate Notes......................................................8
       SECTION 105.  Floating Rate Notes...................................................8
       SECTION 106.  CD Rate Notes........................................................11
       SECTION 107.  Commercial Paper Rate Notes..........................................11
       SECTION 108.  Federal Funds Rate Notes.............................................12
       SECTION 109.  LIBOR Notes..........................................................13
       SECTION 110.  Prime Rate Notes.....................................................14
       SECTION 111.  Treasury Rate Notes..................................................15
       SECTION 112.  CMT Rate Notes.......................................................16
       SECTION 113.  Denominations........................................................19
       SECTION 114.  Global Securities....................................................19
       SECTION 115.  Redemption...........................................................20
       SECTION 116.  Sinking Fund; Repayment at Holder's Option...........................20
       SECTION 117.  Currency21
       SECTION 118.  Paying Agent; Payments...............................................21
       SECTION 119.  Additional Terms.....................................................23
       SECTION 120.  Establishment of Procedures for Authentication of Notes Pursuant
                     to Section 303 of the Indenture......................................24

                                          ARTICLE II
                                   MISCELLANEOUS PROVISIONS

       SECTION 201.  Recitals by Company..................................................24
       SECTION 202.  Ratification and Incorporation of Original Indenture.................24
       SECTION 203.  Executed in Counterparts.............................................24
       SECTION 204.  Assignment...........................................................24

Exhibit A     Form Of Fixed Rate Note
Exhibit B     Form Of Floating Rate Note
Exhibit C     Form Of Authentication Certificate
</TABLE>

________________________
         * This Table of Contents does not constitute part of the Indenture or
have any bearing upon the interpretation of any of its terms and provisions.

                                      (i)
<PAGE>

         THIS FOURTH SUPPLEMENTAL INDENTURE is made as of the first day of
_____, 2002 by and between CONSOLIDATED NATURAL GAS COMPANY, a Delaware
corporation, having its principal office at 120 Tredegar Street, Richmond,
Virginia 23219 (the "Company"), and BANK ONE TRUST COMPANY, NATIONAL
ASSOCIATION, a national banking association, as Trustee (herein called the
"Trustee").

                              W I T N E S S E T H:


         WHEREAS, the Company has heretofore entered into a Senior Indenture,
dated as of April 1, 2001 (the "Original Indenture"), as heretofore supplemented
and amended, with the Trustee;

         WHEREAS, the Original Indenture is incorporated herein by this
reference and the Original Indenture, as heretofore supplemented and amended and
as further supplemented by this Fourth Supplemental Indenture, is herein called
the "Indenture";

         WHEREAS, under the Original Indenture, a new series of Securities may
at any time be established in accordance with the provisions of the Original
Indenture and the forms of the Securities for such series and the terms of such
series may be described by a supplemental indenture executed by the Company and
the Trustee;

         WHEREAS, the Company proposes to create under the Indenture a series of
Securities, to establish the forms for such series of Securities and to
establish the procedures for the authentication and delivery of specific
Securities of the series from time to time;

         WHEREAS, additional Securities of other series hereafter established,
except as may be limited in the Original Indenture as at the time supplemented
and modified, may be issued from time to time pursuant to the Indenture as at
the time supplemented and modified; and

         WHEREAS, all conditions necessary to authorize the execution and
delivery of this Fourth Supplemental Indenture and to make it a valid and
binding obligation of the Company have been done or performed.

         NOW, THEREFORE, in consideration of the agreements and obligations set
forth herein and for other good and valuable consideration, the sufficiency of
which is hereby acknowledged, the parties hereto hereby agree as follows:

                                   ARTICLE I
                           MEDIUM-TERM NOTES, SERIES A

        SECTION 101. Establishment. There is hereby established pursuant to
                     -------------
Section 301 of the Indenture a new series of Securities to be issued under the
Indenture, to be designated as the Company's Medium-Term Notes, Series A (the
"Notes"). The Notes shall be issued as Registered Securities.

         There shall be no limitation on the aggregate principal amount of the
Notes; provided, however, unless otherwise specified in an Authentication
Certificate, the aggregate principal amount

                                       1
<PAGE>

of the Notes to be issued pursuant to this Fourth Supplemental Indenture is
limited to $1,500,000,000 or the equivalent thereof in Foreign Currency (except
for Notes authenticated and delivered upon registration of transfer of, or in
exchange for, or in lieu of, other Notes pursuant to Sections 304, 305, 306, 905
or 1107 of the Indenture and except for any Notes which, pursuant to Section 303
of the Indenture, are deemed never to have been authenticated and delivered). In
the case of Notes denominated in Foreign Currency, the U.S. Dollar equivalent
thereof will be determined by application of the Market Exchange Rate on the
Business Day immediately preceding the date on which the pricing of such Notes
takes place.

         All Notes need not be issued at the same time and any issuance of a
tranche of Notes may be reopened at any time, without the consent of any Holder,
for issuances of additional Notes of such tranche. Any such additional Notes
will, if so specified in the Authentication Certificate therefor, have the same
interest rate, maturity and other terms as Notes of such tranche previously
issued.

         It is hereby established pursuant to Section 201 of the Indenture that
the Notes denominated and payable in United States dollars shall be
substantially in the forms attached as Exhibits A and B hereto, unless a
different form is provided in the applicable Authentication Certificate (which
Authentication Certificate shall constitute a Company Resolution satisfying the
requirements of Section 201 of the Indenture). The Notes shall have such
additional terms as shall be set forth in the applicable Authentication
Certificate and delivered to the Trustee or its authenticating agent. Upon
receipt (including by facsimile) of such Authentication Certificate, the Trustee
or its authenticating agent is hereby instructed to insert such terms on the
face of the Notes relating thereto. Each Note shall be dated the date of
authentication thereof.

         The form of the Trustee's Certificate of Authentication for the Notes
shall be in substantially the form set forth in Section 206 of the Indenture.

         SECTION 102. Definitions. The following defined terms used herein
                      -----------
shall, unless the context otherwise requires, have the meanings specified below.
Capitalized terms used herein for which no definition is provided herein shall
have the meanings set forth in the Original Indenture.

         "Adjusted Treasury Rate" means, with respect to any Redemption Date:
(i) the yield, under the heading which represents the average for the
immediately preceding week, appearing in the most recently published statistical
release designated "H.15(519)" or any successor publication which is published
weekly by the Board of Governors of the Federal Reserve System and which
establishes yields on actively traded United States Treasury securities adjusted
to constant maturity under the caption "Treasury Constant Maturities," for the
maturity corresponding to the Comparable Treasury Issue (if no maturity is
within three months before or after the Remaining Life, yields for the two
published maturities most closely corresponding to the Comparable Treasury Issue
shall be determined and the Adjusted Treasury Rate shall be interpolated or
extrapolated from such yields on a straight line basis, rounding to the nearest
month); or (ii) if such release (or any successor release) is not published
during the week preceding the calculation date or does not contain such yields,
the rate per annum equal to the semi-annual equivalent yield to maturity of the
Comparable Treasury Issue, calculated using a price for the Comparable Treasury
Issue (expressed as a percentage of its principal amount) equal to the
Comparable Treasury Price for such Redemption Date.

                                       2
<PAGE>

         "Authentication Certificate" shall have the meaning ascribed to such
term in Section 120 of this Fourth Supplemental Indenture.

         "Base Rate" shall have the meaning ascribed to such term in Section 105
of this Fourth Supplemental Indenture.

         "Business Day" means with respect to any Note, any day, other than a
Saturday or Sunday, that is neither (a) a legal holiday nor (b) a day on which
banking institutions are authorized or required by law, regulation or executive
order to close in New York City; provided, however, that for Notes denominated
in a Specified Currency other than United States dollars that day is also not a
day on which commercial banking institutions are authorized or required by law,
regulation or executive order to close in the Principal Financial Center of the
country issuing the Specified Currency (or for Notes denominated in euros, that
day is also a day on which the Trans-European Automated Real-time Gross
Settlement Express Transfer System, commonly referred to as "TARGET," is
operating); provided, further, that with respect to a LIBOR Note, the day must
also be a London Business Day.

         "Calculation Agent" shall have the meaning ascribed to such term in
Section 105 of this Fourth Supplemental Indenture.

         "Calculation Date" shall have the meaning ascribed to such term in
Section 105 of this Fourth Supplemental Indenture.

         "CD Rate" shall have the meaning ascribed to such term in Section 106
of this Fourth Supplemental Indenture.

         "CD Rate Note" shall have the meaning ascribed to such term in Section
105 of this Fourth Supplemental Indenture.

         "CMT Rate" shall have the meaning ascribed to such term in Section 112
of this Fourth Supplemental Indenture.

         "CMT Rate Note" shall have the meaning ascribed to such term in Section
105 of this Fourth Supplemental Indenture.

         "Commercial Paper Rate" shall have the meaning ascribed to such term in
Section 107 of this Fourth Supplemental Indenture.

         "Commercial Paper Rate Note" shall have the meaning ascribed to such
term in Section 105 of this Fourth Supplemental Indenture.

         "Comparable Treasury Issue" means the United States Treasury security
selected by an Independent Investment Banker as having a maturity comparable to
the remaining term of the Notes to be redeemed that would be utilized, at the
time of selection and in accordance with customary financial practice, in
pricing new issues of corporate debt securities of comparable maturity to the
remaining term of such Notes ("Remaining Life").

         "Comparable Treasury Price" means, with respect to a Redemption Date,
(i) the average of five Reference Treasury Dealer Quotations for such Redemption
Date, after excluding the highest and

                                       3
<PAGE>

lowest Reference Treasury Dealer Quotations, or (ii) if the Independent
Investment Banker obtains fewer than five such Reference Treasury Dealer
Quotations, the average of all such quotations.

         "Designated LIBOR Page" means either: (i) if "LIBOR Reuters" is
designated in the applicable Authentication Certificate, the display on the
Reuters Monitor Money Rates Service for the purpose of displaying the London
interbank rates of major banks for the applicable Index Currency or its
designated successor; or (ii) if "LIBOR Telerate" is designated in the
applicable Authentication Certificate, the display on the Telerate page
specified in the applicable Authentication Certificate, or any other page as may
replace that page on that service, for the purpose of displaying the London
interbank rates of major banks for the applicable Index Currency.

         "Exchange Rate Agent" shall have the meaning ascribed to such term in
Section 118 of this Fourth Supplemental Indenture.

         "Federal Funds Rate" shall have the meaning ascribed to such term in
Section 108 of this Fourth Supplemental Indenture.

         "Federal Funds Rate Note" shall have the meaning ascribed to such term
in Section 105 of this Fourth Supplemental Indenture.

         "Fixed Rate Note" shall have the meaning ascribed to such term in
Section 103 of this Fourth Supplemental Indenture.

         "Floating Rate/Fixed Rate Note" shall have the meaning ascribed to such
term in Section 105 of this Fourth Supplemental Indenture.

         "Floating Rate Note" shall have the meaning ascribed to such term in
Section 103 of this Fourth Supplemental Indenture.

         "Foreign Currency Note" shall have the meaning ascribed to such term in
Section 117 of this Fourth Supplemental Indenture.

         "H.15 Daily Update" means the daily update of H.15(519), available
through the world wide web site of the Board of Governors of the Federal Reserve
System at http://www.federalreserve.gov/releases/ h15/ update or any successor
site or publication.

         "H.15(519)" means the Statistical Release H.15(519), Selected Interest
Rates, published by the Board of Governors of the Federal Reserve System, or any
successor publication of the Board of Governors of the Federal Reserve System.

         "Independent Investment Banker" means _______________________ and its
successors as selected by the Company, or if such firm is unwilling or unable to
serve as such, an independent investment and banking institution of national
standing appointed by the Company.

         "Index Currency" means the currency specified in the applicable
Authentication Certificate as the currency for which LIBOR will be calculated,
or, if the euro is substituted for that currency, the index currency will be the
euro. If no currency is specified in the applicable Authentication Certificate,
the Index Currency will be U.S. dollars.

                                       4
<PAGE>

         "Index Maturity" means the period of maturity of the instrument or
obligation from which the Base Rate is calculated, as specified in the
applicable Authentication Certificate.

         "Initial Interest Rate" shall have the meaning ascribed to such term in
Section 105 of this Fourth Supplemental Indenture.

         "Interest Determination Date" means, with respect to any Interest Reset
Date, the day the Calculation Agent will refer to when determining the new
interest rate at which a Floating Rate Note will reset, which is applicable as
follows: for Commercial Paper Rate Notes, Federal Funds Rate Notes and Prime
Rate Notes, the Interest Determination Date will be the Business Day prior to
the Interest Reset Date; for LIBOR Notes, the Interest Determination Date will
be the second London Business Day prior to the Interest Reset Date, except that
the Interest Determination Date pertaining to an Interest Reset Date for a LIBOR
Note for which the Index Currency is pounds sterling will be the Interest Reset
Date; for CD Rate Notes and CMT Rate Notes, the Interest Determination Date will
be the second Business Day next preceding the Interest Reset Date; and for
Treasury Rate Notes, the Interest Determination Date will be the day of the week
in which the Interest Reset Date falls on which Treasury bills would normally be
auctioned. Treasury bills are normally sold at auction on Monday of each week,
unless that day is a legal holiday, in which case the auction is normally held
on the following Tuesday, but the auction may be held on the preceding Friday.
If, as the result of a legal holiday, the auction is held on the preceding
Friday, that Friday will be the Interest Determination Date pertaining to the
Interest Reset Date occurring in the next succeeding week. If an auction falls
on a day that is an Interest Reset Date, the Interest Reset Date will be the
next following Business Day.

         "Interest Payment Date" shall have the meaning ascribed to such term in
Section 103 of this Fourth Supplemental Indenture.

         "Interest Period" shall have the meaning ascribed to such term in
Section 105 of this Fourth Supplemental Indenture.

         "Interest Reset Date" means the first day of each Interest Reset
Period.

         "Interest Reset Period" shall have the meaning ascribed to such term in
Section 105 of this Fourth Supplemental Indenture.

         "Inverse Floating Rate Note" shall have the meaning ascribed to such
term in Section 105 of this Fourth Supplemental Indenture.

         "LIBOR Rate" shall have the meaning ascribed to such term in Section
109 of this Fourth Supplemental Indenture.

         "LIBOR Note" shall have the meaning ascribed to such term in Section
105 of this Fourth Supplemental Indenture.

         "Limitation Date" shall have the meaning ascribed to such term in
Section 115 of this Fourth Supplemental Indenture.

                                       5
<PAGE>

         "London Business Day" means any day on which commercial banks are open
for business (including for dealings in deposits in the relevant Index Currency)
in London.

         "Market Exchange Rate" shall have the meaning ascribed to such term in
Section 118 of this Fourth Supplemental Indenture.

         "Maximum Interest Rate" shall have the meaning ascribed to such term in
Section 105 of this Fourth Supplemental Indenture.

         "Minimum Interest Rate" shall have the meaning ascribed to such term in
Section 105 of this Fourth Supplemental Indenture.

         "Original Issue Discount Notes" shall have the meaning ascribed to such
term in Section 103 of this Fourth Supplemental Indenture.

         "Prime Rate" shall have the meaning ascribed to such term in Section
110 of this Fourth Supplemental Indenture.

         "Prime Rate Note" shall have the meaning ascribed to such term in
Section 105 of this Fourth Supplemental Indenture.

         "Principal Financial Center" means, as applicable, the capital city of
the country issuing the Specified Currency; or the capital city of the country
to which the Index Currency relates; provided, however, that the Principal
Financial Center will be New York City for United States dollars, Sydney and
Melbourne (the latter solely in the case of the Index Currency) for Australian
dollars, Toronto for Canadian dollars, Brussels for euros, Johannesburg for
South African rand and Zurich for Swiss francs.

         "Redemption Price" shall have the meaning ascribed to such term in
Section 115 of this Fourth Supplemental Indenture.

         "Reference Treasury Dealer" means: (i) _____________________ and its
successors; provided that, if such firm ceases to be a primary U.S. Government
securities dealer in New York City (a "Primary Treasury Dealer"), the Company
shall substitute another Primary Treasury Dealer; and (ii) up to four other
Primary Treasury Dealers selected by the Company.

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

         "Regular Record Date" means, with respect to each Interest Payment
Date, the close of business on the fifteenth calendar day (whether or not a
Business Day) preceding such Interest Payment Date.

                                       6
<PAGE>

         "Reuters Screen USPRIME 1 Page" means the display designated as page
"USPRIME 1" on the Reuters Monitor Money Rates Service, or any successor
service, or any other page as may replace the USPRIME 1 Page on that service for
the purpose of displaying prime rates or base lending rates of major United
States banks.

         "Specified Currency" shall have the meaning ascribed to such term in
Section 117 of this Fourth Supplemental Indenture.

         "Spread" means the number of basis points to be added to or subtracted
from the Base Rate for a Floating Rate Note, as specified in the applicable
Authentication Certificate as being applicable to such Floating Rate Note for
such Interest Period. Each basis point is 0.01%.

         "Spread Multiplier" means the percentage specified in the applicable
Authentication Certificate as being applicable to the Base Rate for a Floating
Rate Note for each Interest Period.

         "Stated Maturity Date" means the date on which a Note matures, as
specified in such Note and in the applicable Authentication Certificate, as
described in Section 103 of this Fourth Supplemental Indenture.

         "TARGET Settlement Day" means any day on which the Trans-European
Automated Real-Time Gross Settlement Express Transfer System is open.

         "Telerate" means Bridge Telerate, Inc., or any successor service.

         "Treasury Rate" shall have the meaning ascribed to such term in Section
111 of this Fourth Supplemental Indenture.

         "Treasury Rate Note" shall have the meaning ascribed to such term in
Section 105 of this Fourth Supplemental Indenture.

         SECTION 103.  Payment of Principal and Interest. Unless previously
                       ---------------------------------
redeemed or repaid, each Note shall mature on the date 9 months or more from its
date of issue as specified in such Note and in the applicable Authentication
Certificate (the "Stated Maturity Date"). If the Stated Maturity Date or any
earlier Redemption Date or Repayment Date falls on a day that is not a Business
Day with respect to such Note, the payment of principal will be made on the next
succeeding Business Day with the same force and effect as if made on such Stated
Maturity Date, Redemption Date or Repayment Date.

         Each Note within such series that bears interests will bear interest at
either (a) a fixed rate (the "Fixed Rate Notes") or (b) a floating rate (the
"Floating Rate Notes") determined by reference to one or more specified Base
Rates based on the Index Maturity, which may be adjusted by a Spread and/or
Spread Multiplier. Notes may be issued as "Original Issue Discount Notes" at a
discount from the principal amount thereof due at the Stated Maturity Date as
specified in the applicable Authentication Certificate.

         Each Note that bears interest will bear interest from and including its
date of issue or from and including the most recent Interest Payment Date to
which interest on such Note (or any predecessor

                                       7
<PAGE>

Note) has been paid or duly provided for until the principal thereof is paid or
made available for payment. Interest will be payable on each Interest Payment
Date and at the Stated Maturity Date or any earlier Redemption Date or Repayment
Date. The first payment of interest on any Note originally issued after a
Regular Record Date and on or before an Interest Payment Date will be made on
the Interest Payment Date following the next succeeding Regular Record Date to
the registered Holder on such next succeeding Regular Record Date.

         The Interest Payment Dates for the Notes shall be as specified in the
applicable Authentication Certificate (the "Interest Payment Dates").

         The interest rate on a Note for any Interest Period will in no event be
higher than the maximum rate permitted by New York law as the same may be
modified by United States law of general application.

         The applicable Authentication Certificate will specify: (i) the issue
price, Interest Payment Dates and Regular Record Dates; (ii) the date on which
the Note will be issued and the Stated Maturity Date; (iii) the Specified
Currency in which the Note is denominated; (iv) with respect to any Fixed Rate
Note, the interest rate, (v) with respect to any Floating Rate Note, the Initial
Interest Rate, the method (which may vary from Interest Period to Interest
Period) of calculating the interest rate applicable to each Interest Period
(including, if applicable, the Index Maturity, the Spread and/or Spread
Multiplier, the Interest Determination Dates, the Interest Reset Dates and any
Minimum Interest Rate or Maximum Interest Rate); (vi) with respect to any
Floating Rate Note, whether such Note is an Inverse Floating Rate Note and, if
so, the fixed interest rate for such Note; (vii) with respect to any Floating
Rate Note, whether such Note is a Floating Rate/Fixed Rate Note and, if so, the
interest rates for such Note and the fixed rate commencement date; (viii)
whether such Note is an Original Issue Discount Note; and (ix ) any other terms
consistent with the Indenture including the redemption or repayment terms, if
any for such Note.

         SECTION 104.  Fixed Rate Notes. Each Fixed Rate Note, whether or not
                       ----------------
issued as an Original Issue Discount Note, will bear interest at the annual rate
specified on its face until the principal is paid or made available for payment.
Interest on Fixed Rate Notes will be computed and paid on the basis of a 360-day
year of twelve 30-day months. Interest payments for Fixed Rate Notes will
include accrued interest from and including the date of issue or from and
including the last date in respect of which interest has been paid or duly
provided for, as the case may be, to but excluding the relevant Interest Payment
Date or Stated Maturity Date or any earlier Redemption Date or Repayment Date,
as the case may be, except when the Interest Payment Date is not a Business Day.
In the event that any Interest Payment Date on a Fixed Rate Note is not a
Business Day, interest will be paid on the next succeeding Business Day with the
same force and effect as if made on such Interest Payment Date, but interest on
that payment will not accrue during the period from and after the scheduled
Interest Payment Date.

         SECTION 105.  Floating Rate Notes.  A Floating Rate Note will bear
                       -------------------
interest determined by reference one or more specified Base Rates based on the
Index Maturity, which may be adjusted by a Spread and/or a Spread Multiplier.
Any Floating Rate Note may also have either or both of the following as set
forth in the applicable Authentication Certificate: (i) a maximum interest rate
limitation, or ceiling, on the rate of interest which may accrue during any
Interest Period (the

                                       8
<PAGE>

"Maximum Interest Rate"); and (ii) a minimum interest rate limitation, or floor,
on the rate of interest which may accrue during any Interest Period (the
"Minimum Interest Rate").

         Floating Rate Notes may be issued as "Inverse Floating Rate Notes" in
which case the particular Floating Rate Note will bear interest at a fixed
interest rate minus the rate determined by reference to the applicable Base Rate
(i) plus or minus the applicable Spread, if any, and/or (ii) multiplied by the
applicable Spread Multiplier, if any; provided, however, that interest on an
Inverse Floating Rate Note will not be less than zero. Commencing on the first
Interest Reset Date, the rate at which interest on an Inverse Floating Rate Note
is payable will be reset as of each Interest Reset Date; provided, further, that
the interest rate in effect for the period, if any, from the date of issue to
the first Interest Reset Date will be the Initial Interest Rate.

         Floating Rate Notes may be issued as "Floating Rate/Fixed Rate Notes"
in which case the particular Floating Rate Note will bear interest from the date
of issue to the first Interest Reset Date for such Note at the Initial Interest
Rate specified in the applicable Authentication Certificate and thereafter the
rate of interest on such Note will be reset as of each Interest Reset Date to a
rate determined by reference to the applicable Base Rate (i) plus or minus the
applicable Spread, if any, and/or (ii) multiplied by the applicable Spread
Multiplier, if any; provided, however, that the interest rate in effect
commencing on the fixed rate commencement date specified in the applicable
Authentication Certificate will be the fixed rate of interest specified in such
Authentication Certificate, or if no such fixed rate is specified, the rate of
interest beginning on the fixed rate commencement date shall be the interest
rate in effect on the day immediately preceding the fixed rate commencement
date.

         The applicable Authentication Certificate may designate any of the
following interest rates or interest rate formulas (the "Base Rate") as
applicable to one or more Interest Periods on each Floating Rate Note: (a) the
CD Rate, in which case such note will be a "CD Rate Note" with respect to such
Interest Period or Interest Periods; (b) the Commercial Paper Rate, in which
case such Note will be a "Commercial Paper Rate Note" with respect to such
Interest Period or Interest Periods; (c) the CMT Rate, in which case such Note
will be a "CMT Rate Note" with respect to such Interest Period or Interest
Periods; (d) the Federal Funds Rate, in which case such Note will be a "Federal
Funds Rate Note" with respect to such Interest Period or Interest Periods; (e)
LIBOR, in which case such Note will be a "LIBOR Note" with respect to such
Interest Period or Interest Periods; (f) the Prime Rate, in which case such Note
will be a "Prime Rate Note" with respect to such Interest Period or Interest
Periods; (g) the Treasury Rate, in which case such Note will be a "Treasury Rate
Note" with respect to such Interest Period or Interest Periods; (h) such other
rate or interest rate formula as set forth in the applicable Authentication
Certificate.

         The interest rate on each Floating Rate Note for each Interest Period
will be determined by reference to the applicable Base Rate specified in the
applicable Authentication Certificate for such Interest Period, plus or minus
the applicable Spread, if any, and/or multiplied by the applicable Spread
Multiplier, if any.

         In the event that any Interest Payment Date, other than the Stated
Maturity Date or any earlier Redemption Date or Repayment Date, for any Floating
Rate Note falls on a day that is not a Business Day, the Interest Payment Date
will be postponed to the next following day that is a Business Day,

                                       9
<PAGE>

except that, in the case of a LIBOR Note, if that Business Day would fall in the
next calendar month, the Interest Payment Date will be the immediately preceding
Business Day.

         The rate of interest on each Floating Rate Note will be reset daily,
weekly, monthly, quarterly, semi-annually or annually (that period being the
"Interest Reset Period" for the Note), as specified in the applicable
Authentication Certificate.

         The interest rate in effect from the date of issue to the first
Interest Reset Date for a Floating Rate Note (the "Initial Interest Rate") will
be the Initial Interest Rate specified in the applicable Authentication
Certificate. If any Interest Reset Date for any Floating Rate Note would
otherwise be a day that is not a Business Day, such Interest Reset Date shall be
postponed to the next day that is a Business Day, except that in the case of a
LIBOR Note, if such Business Day is in the next succeeding calendar month, such
Interest Reset Date shall be the immediately preceding Business Day.

         Unless otherwise specified in the applicable Authentication
Certificate, interest for a Floating Rate Note will accrue from and including
the most recent Interest Payment Date to which interest has been paid or duly
provided for, or, if no interest has been paid or duly provided for, from and
including the issue date or any other date specified in an Authentication
Certificate on which interest begins to accrue and interest will accrue to but
excluding the next Interest Payment Date or, if earlier, the date on which the
principal has been paid or duly made available for payment (each such interest
accrual period, an "Interest Period").

         Upon the request of the Holder of any Floating Rate Note, the
Calculation Agent will provide the interest rate then in effect and, if
determined, the interest rate that will become effective on the next Interest
Reset Date for that Floating Rate Note.

         For a Floating Rate Note, accrued interest will be calculated by
multiplying the principal amount of the Floating Rate Note by an accrued
interest factor. This accrued interest factor will be computed by adding the
interest factors calculated for each day in the period for which interest is
being paid. The interest factor for each day is computed by dividing the
interest rate applicable to that day: (i) by 360, in the case of CD Rate Notes,
Commercial Paper Rate Notes, Federal Funds Rate Notes, LIBOR Notes (except for
LIBOR Notes denominated in pounds sterling) and Prime Rate Notes; (ii) by 365,
in the case of LIBOR Notes denominated in pounds sterling; or (iii) by the
actual number of days in the year, in the case of Treasury Rate Notes or CMT
Rate Notes.

         For these calculations, the interest rate in effect on any Interest
Reset Date will be the applicable rate as reset on that date. The interest rate
applicable to any other day is the interest rate from the immediately preceding
Interest Reset Date or, if none, the Initial Interest Rate.

         All percentages used in or resulting from any calculation of the rate
of interest on a Floating Rate Note will be rounded, if necessary, to the
nearest one hundred-thousandth of a percentage point (.0000001), with five one-
millionths of a percentage point rounded upward, (e.g. 9.876545% (or .09876545)
would be rounded to 9.87655% (or .0987655)) and all United States dollar amounts
used in or resulting from these calculations on Floating Rate Notes will be
rounded to the nearest cent, with one-half cent rounded upward.

                                      10
<PAGE>

         Unless otherwise specified in the applicable Authentication
Certificate, Bank One Trust Company, National Association will be the
"Calculation Agent." Unless otherwise specified it the applicable Authentication
Certificate, the "Calculation Date," if applicable, pertaining to any Interest
Determination Date on a Floating Rate Note will be the earlier of (i) the tenth
calendar day after such Interest Determination Date, or, if any such day is not
a Business Day, the next succeeding Business Day, and (ii) the Business Day
immediately preceding the applicable Interest Payment Date or Stated Maturity
Date or for any principal amount to be redeemed or repaid, the Redemption Date
or Repayment Date, as the case may be.

         SECTION 106.  CD Rate Notes.  CD Rate Notes will bear interest at the
                       -------------
interest rates specified in the CD Rate Notes and in the applicable
Authentication Certificate. Those interest rates will be based on the CD Rate
and any Spread or Spread Multiplier and will be subject to the Minimum Interest
Rate and the Maximum Interest Rate, if any.

         Unless otherwise specified in the applicable Authentication
Certificate, the CD Rate will be, for any Interest Determination Date, the rate
on that date for negotiable U.S. dollar certificates of deposit having the Index
Maturity specified in the applicable Authentication Certificate as published in
H.15(519) under the heading "CDs (secondary market)."

         The following procedures will apply if the CD Rate cannot be determined
as described above: If the above rate is not published in H.15(519) by 3:00
p.m., New York City time, on the Calculation Date pertaining to the applicable
Interest Determination Date, the CD Rate will be the rate on that Interest
Determination Date set forth in the H.15 Daily Update, or such other recognized
electronic source used for the purpose of displaying such rate, or any successor
site or publication, which is commonly referred to as the "H.15 Daily Update,"
for the Interest Determination Date for negotiable certificates of deposit
having the Index Maturity specified in the applicable Authentication
Certificate, under the caption "CDs (secondary market). If the above rate is not
yet published in either H.15(519), the H.15 Daily Update or some other
recognized source for the purpose of displaying the rate, by 3:00 p.m., New York
City time, on the Calculation Date, the Calculation Agent will determine the CD
Rate to be the arithmetic mean of the secondary market offered rates as of 10:00
a.m., New York City time, on that Interest Determination Date of three leading
nonbank dealers in negotiable U.S. dollar certificates of deposit in New York
City selected by the Calculation Agent, after consultation with the Company, for
negotiable certificates of deposit of major United States money center banks of
the highest credit standing in the market for negotiable certificates of deposit
with a remaining maturity closest to the Index Maturity specified in the
applicable Authentication Certificate in an amount that is representative for a
single transaction in that market at that time. If the dealers selected by the
Calculation Agent are not quoting as set forth above, the CD Rate for the
applicable Interest Reset Period will be the same as the CD Rate in effect for
the immediately preceding Interest Reset Period (or, if there was no Interest
Reset Period, the rate of interest payable on the CD Rate Notes for which the CD
Rate is being determined shall be the Initial Interest Rate).

         SECTION 107.  Commercial Paper Rate Notes. Commercial Paper Rate Notes
                       ---------------------------
will bear interest at the interest rates specified in the Commercial Paper Rate
Notes and in the applicable Authentication Certificate. Those interest rates
will be based on the Commercial Paper Rate and any Spread or Spread Multiplier
and will be subject to the Minimum Interest Rate and the Maximum Interest Rate,
if any.

                                      11
<PAGE>

         The Commercial Paper Rate will be, for any Interest Determination Date,
the Money Market Yield, calculated as described below, of the rate on that date
for commercial paper having the Index Maturity specified in the applicable
Authentication Certificate, as that rate is published in H.15(519), under the
heading "Commercial Paper - Nonfinancial."

         The following procedures will apply if the Commercial Paper Rate cannot
be determined as described above: If the above rate is not published by 3:00
p.m., New York City time, on the Calculation Date pertaining to the applicable
Interest Determination Date, then the Commercial Paper Rate will be the Money
Market Yield of the rate on that Interest Determination Date for commercial
paper of the Index Maturity specified in the applicable Authentication
Certificate as published in H.15 Daily Update or some other recognized
electronic source for the purpose of displaying the rate, under the heading
"Commercial Paper - Nonfinancial." If by 3:00 p.m., New York City time, on that
Calculation Date the rate is not yet published in either H.15(519) or the H.15
Daily Update, or some other recognized electronic source for the purpose of
displaying the rate, then the Calculation Agent will determine the Commercial
Paper Rate to be the Money Market Yield of the arithmetic mean of the offered
rates as of 11:00 a.m., New York City time, on that Interest Determination Date
of three leading dealers of U.S. dollar commercial paper in New York City
selected by the Calculation Agent, after consultation with the Company, for
commercial paper of the Index Maturity specified in the applicable
Authentication Certificate, placed for an industrial issuer whose bond rating is
"AA," or the equivalent, from a nationally recognized statistical rating
organization. If the dealers selected by the Calculation Agent are not quoting
as mentioned above, the Commercial Paper Rate for the applicable Interest Reset
Period will be the same as the Commercial Paper Rate in effect for the
immediately preceding Interest Reset Period (or, if there was no Interest Reset
Period, the rate of interest payable on the Commercial Paper Rate Notes for
which the Commercial Paper Rate is being determined shall be the Initial
Interest Rate).

         The "Money Market Yield" will be a yield calculated in accordance with
the following formula:

                  Money Market Yield =    D x 360         x 100
                                          --------------
                                          360 - (D x M)

         "D" refers to the applicable per year rate for commercial paper quoted
on a bank discount basis and expressed as a decimal; and "M" refers to the
actual number of days in the interest period for which interest is being
calculated.

         SECTION 108.  Federal Funds Rate Notes. Federal Funds Rate Notes will
                       ------------------------
bear interest at the interest rates specified in the Federal Funds Rate Notes
and in the applicable Authentication Certificate. Those interest rates will be
based on the Federal Funds Rate and any Spread or Spread Multiplier and will be
subject to the Minimum Interest Rate and the Maximum Interest Rate, if any.

         The Federal Funds Rate will be, for any Interest Determination Date,
the rate on that date for U.S. dollar federal funds as published in H.15(519)
under the heading "Federal Funds (Effective)" as that rate is displayed on the
Telerate on page 120 or any other page as may replace the applicable page on
that service, which is commonly referred to as "Telerate Page 120."

                                      12
<PAGE>

         The following procedures will apply if the Federal Funds Rate cannot be
determined as described above: If the above rate is not published by 3:00 p.m.,
New York City time, on the Calculation Date pertaining to the Interest
Determination Date, the Federal Funds Rate will be the rate on that Interest
Determination Date as published in the H.15 Daily Update under the heading
"Federal Funds/ Effective Rate," or another recognized electronic source used
for the purpose of displaying that rate, under the caption "Federal Funds
(Effective)." If that rate is not yet published in either H.15(519) or the H.15
Daily Update or some other recognized electronic source for the purpose of
displaying the rate, by 3:00 p.m., New York City time, on the Calculation Date
pertaining to the Interest Determination Date then the Calculation Agent will
determine the Federal Funds Rate to be the arithmetic mean of the rates for the
last transaction in overnight U.S. dollar federal funds, as of 9:00 a.m., New
York City time, on the Interest Determination Date, arranged by each of three
leading brokers of federal funds transactions in New York City selected by the
Calculation Agent. If the brokers selected by the Calculation Agent are not
quoting as mentioned above, the Federal Funds Rate for the applicable Interest
Reset Period will be the same as the Federal Funds Rate in effect for the
immediately preceding Interest Reset Period (or, if there was no Interest Reset
Period, the rate of interest payable on the Federal Funds Rate Notes for which
the Federal Funds Rate is being determined shall be the Initial Interest Rate).


         SECTION 109.  LIBOR Notes. LIBOR Notes will bear interest at the
                       -----------
interest rates specified in the LIBOR Notes and in the applicable Authentication
Certificate. That interest rate will be based on the London Interbank Offered
Rate, which is commonly referred to as "LIBOR," and any Spread or Spread
Multiplier and will be subject to the Minimum Interest Rate and the Maximum
Interest Rate, if any.


         The Calculation Agent will determine "LIBOR" for each Interest
Determination Date as follows: As of the Interest Determination Date, LIBOR will
be either: (a) if "LIBOR Reuters" is specified in the applicable Authentication
Certificate, the arithmetic mean of the offered rates for deposits in the Index
Currency having the Index Maturity designated in the applicable Authentication
Certificate, commencing on the second London Business Day immediately following
that Interest Determination Date, that appear on the Designated LIBOR Page as of
11:00 a.m., London time, on that Interest Determination Date, if at least two
offered rates appear on the Designated LIBOR Page, except that if the specified
Designated LIBOR Page, by its terms provides only for a single rate, that single
rate will be used; or (b) if "LIBOR Telerate" is specified in the applicable
Authentication Certificate, the rate for deposits in the Index Currency having
the Index Maturity designated in the applicable Authentication Certificate,
commencing on the second London Business Day immediately following that Interest
Determination Date or, if pounds sterling is the Index Currency, commencing on
that Interest Determination Date, that appears on the Designated LIBOR Page at
approximately 11:00 a.m., London time, on that Interest Determination Date. If
fewer than the required number of offered rates appear, then the Calculation
Agent will request the principal London offices of each of four major reference
banks in the London interbank market, as selected by the Calculation Agent after
consultation with the Company, to provide the Calculation Agent with its offered
quotation for deposits in the Index Currency for the period of the Index
Maturity specified in the applicable Authentication Certificate commencing on
the second London Business Day immediately following the Interest Determination
Date or, if pounds sterling is the Index Currency, commencing on that Interest
Determination Date, to prime banks in the London interbank market at
approximately 11:00
                                      13
<PAGE>

a.m., London time, on that Interest Determination Date and in a principal amount
of not less than $1,000,000 (or the equivalent in the Index Currency, if the
Index Currency is not the U.S. dollar) that is representative of a single
transaction in the Index Currency in the market at that time. If at least two
quotations are provided, LIBOR determined on that Interest Determination Date
will be the arithmetic mean of those quotations. If fewer than two quotations
are provided, LIBOR will be determined on that Interest Determination Date as
the arithmetic mean of the rates quoted at approximately 11:00 a.m., London
time, or some other time specified in the applicable Authentication Certificate,
in the applicable Principal Financial Center for the country of the Index
Currency on the Interest Determination Date, by three major banks in that
Principal Financial Center selected by the Calculation Agent, after consultation
with the Company, for loans in the Index Currency to leading European banks,
having the Index Maturity specified in the applicable Authentication Certificate
and in a principal amount of not less than $1,000,000 (or the equivalent in the
Index Currency, if the Index Currency is not the U.S. dollar) that is
representative of a single transaction in that Index Currency in the market at
that time. If the banks so selected by the Calculation Agent are not quoting as
mentioned in the previous sentence, LIBOR for the applicable Interest Reset
Period will be the same as LIBOR in effect for the immediately preceding
Interest Reset Period (or, if there was no Interest Reset Period, the rate of
interest payable on the LIBOR Notes for which LIBOR is being determined shall be
the Initial Interest Rate.

         If neither LIBOR Reuters nor LIBOR Telerate is specified in the
applicable Authentication Certificate, LIBOR for the applicable Index Currency
will be determined as if LIBOR Telerate were specified, and, if the U.S. dollar
is the Index Currency, as if Page 3750, had been specified.

         SECTION 110.  Prime Rate Notes. Prime Rate Notes will bear interest at
                       ----------------
the interest rates specified in the Prime Rate Notes and in the applicable
Authentication Certificate. That interest rate will be based on the Prime Rate
and any Spread or Spread Multiplier and will be subject to the Minimum Interest
Rate and the Maximum Interest Rate, if any.

         The Prime Rate will be, for any Interest Determination Date, the rate
set forth on that date in H.15(519) under the heading "Bank Prime Loan."

         The following procedures will apply if the Prime Rate cannot be
determined as described above: If the above rate is not published prior to 3:00
p.m., New York City time, on the Calculation Date pertaining to the applicable
Interest Determination Date, then the Prime Rate will be the rate on that
Interest Determination Date as published in H.15 Daily Update, or such other
recognized electronic source used for the purpose of displaying such rate, under
the heading "Bank Prime Loan." If the rate is not published prior to 3:00 p.m.,
New York City time, on the Calculation Date in either H.15(519) or the H.15
Daily Update, or some other recognized electronic source for the purpose of
displaying the rate, then the Calculation Agent will determine the Prime Rate to
be the arithmetic mean of the rates of interest publicly announced by each bank
that appears on the Reuters Screen USPRIME 1 Page as that bank's prime rate or
base lending rate as in effect as of 11:00 a.m., New York City time, on that
Interest Determination Date as quoted on the Reuters Screen USPRIME 1 Page on
the Interest Determination Date. If fewer than four rates appear on the Reuters
Screen USPRIME 1 Page for that Interest Determination Date, the Calculation
Agent will determine the Prime Rate to be the arithmetic mean of the prime rates
or base lending rates quoted on the basis of the actual number of days in the
year divided by 360 as of the close of business on that Interest

                                      14
<PAGE>

Determination Date by three major banks in New York City selected by the
Calculation Agent, after consultation with the Company, from which quotations
are requested. If fewer than two quotations are provided, the Prime Rate shall
be calculated by the Calculation Agent and shall be determined as the arithmetic
mean on the basis of the prime rates in New York City by the appropriate number
of substitute banks or trust companies organized and doing business under the
laws of the United States, or any State thereof, in each case having total
equity capital of at least U.S. $500 million and being subject to supervision or
examination by federal or state authority, selected by the Calculation Agent to
quote the rate or rates. If the banks or trust companies selected by the
Calculation Agent are not quoting as mentioned above, the Prime Rate for the
applicable Interest Reset Period will be the same as the Prime Rate in effect
for the immediately preceding Interest Reset Period (or, if there was no
Interest Reset Period, the rate of interest payable on the Prime Rate Notes for
which the Prime Rate is being determined shall be the Initial Interest Rate).

         SECTION 111.  Treasury Rate Notes. Treasury Rate Notes will bear
                       -------------------
interest at the interest rates specified in the Treasury Rate Notes and in the
applicable Authentication Certificate. That interest rate will be based on the
Treasury Rate and any Spread or Spread Multiplier and will be subject to the
Minimum Interest Rate and the Maximum Interest Rate, if any.

         The Treasury Rate will be the rate from the auction held on the
applicable Interest Determination Date of direct obligations of the United
States, which are commonly referred to as "Treasury Bills," having the Index
Maturity specified in the applicable Authentication Certificate as that rate
appears under the caption "Investment Rate" on the display on the Telerate on
page 56 or any other page as may replace page 56 on that service, referred to as
"Telerate Page 56," or page 57 or any other page as may replace page 57 on that
service, referred to as "Telerate Page 57."

         The following procedures will apply if the Treasury Rate cannot be
determined as described above: If the rate described above is not published by
3:00 p.m., New York City time, on the Calculation Date pertaining to the
applicable Interest Determination Date, the Treasury Rate for the Interest
Determination Date will be the yield to maturity (expressed as a bond
equivalent, on the basis of a year of 365 or 366 days, as applicable and applied
on a daily basis) of the rate of the applicable Treasury Bills, published in the
H.15 Daily Update, or any other recognized electronic source used for the
purpose of displaying the rate, under the caption "U.S. Government
Securities/Treasury Bills/Auction High" on the Interest Determination Date, or
if not so published by 3:00 p.m., New York City time on the Calculation Date,
the yield to maturity (expressed as a bond equivalent, on the basis of a year of
365 or 366 days, as applicable and applied on a daily basis) of the auction rate
of the applicable Treasury Bills as otherwise announced by the United States
Department of the Treasury. In the event that the results of the auction of
Treasury Bills having the Index Maturity designated in the applicable
Authentication Certificate are not published or reported as provided above by
3:00 p.m., New York City time, on the Calculation Date or if no auction is held
on the Interest Determination Date, then the Treasury Rate will be the yield to
maturity (expressed as a bond equivalent, on the basis of a year of 365 or 366
days, as applicable and applied on a daily basis) of the rate on the Interest
Determination Date of Treasury Bills having the Index Maturity specified in the
applicable Authentication Certificate published in H.15(519), or such other
recognized electronic source used for the purpose of displaying that rate, under
the caption "U.S. Government Securities/ Treasury Bills/ Secondary Market." If
the rate referred to in the immediately preceding sentence is not so published
by 3:00 p.m., New York City time, on the Calculation Date pertaining to the

                                      15
<PAGE>

applicable Interest Determination Date, the Treasury Rate shall be the yield to
maturity (expressed as a bond equivalent, on the basis of a year of 365 or 366
days, as applicable and applied on a daily basis) of the rate on the Interest
Determination Date of such Treasury Bills as published in the H.15 Daily Update,
or other recognized electronic source used for the purpose of displaying that
rate, under the caption "U.S. Government Securities/Treasury Bills/Secondary
Market." If the rate referred to above is not published in H.15(519), H.15 Daily
Update, or another recognized electronic source, by 3:00 p.m., New York City
time, on the Calculation Date pertaining to the applicable Interest
Determination Date, the Treasury Rate shall be calculated by the Calculation
Agent and shall be a yield to maturity (expressed as a bond equivalent, on the
basis of a year of 365 or 366 days, as applicable and applied on a daily basis)
calculated using the arithmetic mean of the secondary market bid rates, as of
approximately 3:30 p.m., New York City time, on the applicable Interest
Determination Date, of three primary United States government securities
dealers, selected by the Calculation Agent, after consultation with the Company,
for the issue of Treasury Bills with a remaining maturity closest to the Index
Maturity specified in the applicable Authentication Certificate. If the dealers
selected by the Calculation Agent are not quoting as mentioned in the
immediately preceding sentence, the Treasury Rate for the applicable Interest
Reset Period will be the same as the Treasury Rate in effect for the immediately
preceding Interest Reset Period (or, if there was no Interest Reset Period, the
rate of interest payable on the Treasury Rate Notes for which the Treasury Rate
is being determined shall be the Initial Interest Rate).

         SECTION 112.  CMT Rate Notes. CMT Rate Notes will bear interest at the
                       --------------
interest rate (calculated with reference to the CMT Rate and the Spread and/or
Spread Multiplier, if any, and subject to the Minimum Interest Rate and the
Maximum Interest Rate, if any) specified in the CMT Rate Notes and in the
applicable Authentication Certificate.

         Unless otherwise indicated in an applicable Authentication Certificate,
if CMT Telerate Page 7051 is specified in the applicable Authentication
Certificate, CMT Rate means the percentage equal to the yield for U.S. Treasury
securities at "constant maturity" having the Index Maturity specified in the
applicable Authentication Certificate as published in H.15(519) under the
caption "Treasury Constant Maturities", as the yield is displayed on the
Telerate on page 7051 (or any other page as may replace the specified page on
that service) ("Telerate Page 7051"), for the particular Interest Determination
Date. The following paragraphs detail the procedures to be followed in the event
that CMT Telerate Page 7051 is specified in the applicable Authentication
Certificate, but the foregoing method for determining CMT Rate is not available.

..  If the rate referred to in the preceding paragraph does not so appear on
   Telerate Page 7051 by 3:30 p.m., New York City time, on the Calculation Date
   for the applicable Interest Determination Date, the CMT Rate will be the
   percentage equal to the yield for U.S. Treasury securities at "constant
   maturity" having the particular Index Maturity and for the particular
   Interest Determination Date as published in H.15(519) under the caption
   "Treasury Constant Maturities".

..  If the rate referred to in the preceding paragraph does not so appear in
   H.15(519) by 3:30 p.m., New York City time, on the Calculation Date for the
   applicable Interest Determination Date, the CMT Rate will be the rate on the
   particular Interest Determination Date for the period of the particular Index
   Maturity as may then be published by either the Federal Reserve System Board
   of Governors or the U.S. Department of the Treasury that the Calculation
   Agent determines to be comparable to the rate which would otherwise have been
   published in H.15(519).

                                      16
<PAGE>

..    If the rate referred to in the preceding paragraph is not so published by
     3:30 p.m., New York City time, on the Calculation Date for the applicable
     Interest Determination Date, the CMT Rate will be the rate on the
     particular Interest Determination Date calculated by the Calculation Agent
     as a yield to maturity based on the arithmetic mean of the secondary market
     bid prices at approximately 3:30 p.m., New York City time, on that Interest
     Determination Date of three leading primary U.S. government securities
     dealers in New York City (each, a "Reference Dealer"), selected by the
     Calculation Agent from five Reference Dealers selected by the Calculation
     Agent and eliminating the highest quotation, or, in the event of equality,
     one of the highest, and the lowest quotation or, in the event of equality,
     one of the lowest, for U.S. Treasury securities with an original maturity
     equal to the particular Index Maturity, a remaining term to maturity no
     more than 1 year shorter than that Index Maturity and in a principal amount
     that is representative for a single transaction in the securities in that
     market at that time.

..    If fewer than five but more than two of the prices referred to in the
     preceding paragraph are provided as requested, the CMT Rate will be the
     rate on the particular Interest Determination Date calculated by the
     Calculation Agent based on the arithmetic mean of the bid prices obtained
     and neither the highest nor the lowest of the quotations shall be
     eliminated.

..    If fewer than three of the prices referred to two paragraphs above are
     provided as requested, the CMT Rate will be the rate on the particular
     Interest Determination Date calculated by the Calculation Agent as a yield
     to maturity based on the arithmetic mean of the secondary market bid prices
     as of approximately 3:30 p.m., New York City time, on that Interest
     Determination Date of three Reference Dealers selected by the Calculation
     Agent from five Reference Dealers selected by the Calculation Agent and
     eliminating the highest quotation or, in the event of equality, one of the
     highest and the lowest quotation or, in the event of equality, one of the
     lowest, for U.S. Treasury securities with an original maturity greater than
     the particular Index Maturity, a remaining term to maturity closest to that
     Index Maturity and in a principal amount that is representative for a
     single transaction in the securities in that market at that time.

..    If fewer than five but more than two prices referred to in the preceding
     paragraph are provided as requested, the CMT Rate will be the rate on the
     particular Interest Determination Date calculated by the Calculation Agent
     based on the arithmetic mean of the bid prices obtained and neither the
     highest nor the lowest of the quotations will be eliminated.

..    If fewer than three prices referred to two paragraphs above are provided as
     requested, the CMT Rate for the applicable Interest Reset Date will be the
     same as the CMT Rate for the immediately preceding Interest Reset Period
     (or, if there was no Interest Reset Period, the rate of interest payable on
     the CMT Rate Notes for which the CMT Rate is being determined shall be the
     Initial Interest Rate).

          Unless otherwise indicated in an applicable Authentication
Certificate, if CMT Telerate Page 7052 is specified in the applicable
Authentication Certificate, CMT Rate means the percentage equal to the one-week
or one-month, as specified in the applicable Authentication Certificate, average
yield for U.S. Treasury securities at "constant maturity" having the Index
Maturity specified in the applicable Authentication Certificate as published in
H.15(519) opposite the caption "Treasury Constant Maturities", as the yield is
displayed on the Telerate on page 7052 (or any other page as may replace the
specified page on that service) ("Telerate Page 7052"), for the week or month,
as

                                      17
<PAGE>

applicable, ended immediately preceding the week or month, as applicable, in
which the particular Interest Determination Date falls. The following paragraphs
detail the procedures to be followed in the event that CMT Telerate Page 7052 is
specified in the applicable Authentication Certificate, but the foregoing method
for determining CMT Rate is not available.

..    If the rate referred to in the preceding paragraph does not so appear on
     Telerate Page 7052 by 3:30 p.m., New York City time, on the Calculation
     Date for the applicable Interest Determination Date, the CMT Rate will be
     the percentage equal to the one-week or one-month, as specified in the
     applicable Authentication Certificate, average yield for U.S. Treasury
     securities at "constant maturity" having the particular Index Maturity and
     for the week or month, as applicable, preceding the particular Interest
     Determination Date as published in H.15(519) opposite the caption "Treasury
     Constant Maturities."

..    If the rate referred to in the preceding paragraph does not so appear in
     H.15(519) by 3:30 p.m., New York City time, on the Calculation Date for the
     applicable Interest Determination Date, the CMT Rate will be the one-week
     or one-month, as specified in the applicable Authentication Certificate,
     average yield for U.S. Treasury securities at "constant maturity" having
     the particular Index Maturity as otherwise announced by the Federal Reserve
     Bank of New York for the week or month, as applicable, ended immediately
     preceding the week or month, as applicable, in which the particular
     Interest Determination Date falls.

..    If the rate referred to in the preceding paragraph is not so published by
     3:30 p.m., New York City time, on the Calculation Date for the applicable
     Interest Determination Date, the CMT Rate will be the rate on the
     particular Interest Determination Date calculated by the Calculation Agent
     as a yield to maturity based on the arithmetic mean of the secondary market
     bid prices at approximately 3:30 p.m., New York City time, on that Interest
     Determination Date of three Reference Dealers selected by the Calculation
     Agent from five Reference Dealers selected by the Calculation Agent and
     eliminating the highest quotation, or, in the event of equality, one of the
     highest, and the lowest quotation or, in the event of equality, one of the
     lowest, for U.S. Treasury securities with an original maturity equal to the
     particular Index Maturity, a remaining term to maturity no more than 1 year
     shorter than that Index Maturity and in a principal amount that is
     representative for a single transaction in the securities in that market at
     that time.

..    If fewer than five but more than two of the prices referred to in the
     preceding paragraph are provided as requested, the CMT Rate will be the
     rate on the particular Interest Determination Date calculated by the
     Calculation Agent based on the arithmetic mean of the bid prices obtained
     and neither the highest nor the lowest of the quotations shall be
     eliminated.

..    If fewer than three prices referred to two paragraphs above are provided as
     requested, the CMT Rate will be the rate on the particular Interest
     Determination Date calculated by the Calculation Agent as a yield to
     maturity based on the arithmetic mean of the secondary market bid prices as
     of approximately 3:30 p.m., New York City time, on that Interest
     Determination Date of three Reference Dealers selected by the Calculation
     Agent from five Reference Dealers selected by the Calculation Agent and
     eliminating the highest quotation or, in the event of equality, one of the
     highest and the lowest quotation or, in the event of equality, one of the
     lowest, for U.S. Treasury securities with an original maturity greater than
     the particular Index Maturity, a remaining term to

                                      18
<PAGE>

     maturity closest to that Index Maturity and in a principal amount that is
     representative for a single transaction in the securities in that market at
     the time.

..    If fewer than five but more than two prices referred to in the preceding
     paragraph are provided as requested, the CMT Rate will be the rate on the
     particular Interest Determination Date calculated by the Calculation Agent
     based on the arithmetic mean of the bid prices obtained and neither the
     highest or the lowest of the quotations will be eliminated.

..    If fewer than three prices referred to two paragraphs above are provided as
     requested, the CMT Rate for the applicable Interest Reset Date will be the
     same as the CMT Rate for the immediately preceding Interest Reset Period
     (or, if there was no Interest Reset Period, the rate of interest payable on
     the CMT Rate Notes for which the CMT Rate is being determined shall be the
     Initial Interest Rate).

          For purposes of the above calculations (whether CMT Telerate Page 7051
or CMT Telerate Page 7052 is specified in the applicable Authentication
Certificate), if two U.S. Treasury securities with an original maturity greater
than the Index Maturity specified in the applicable Authentication Certificate
have remaining terms to maturity equally close to the particular Index Maturity,
the quotes for the U.S. Treasury security with the shorter remaining term to
maturity will be used.

          If no CMT Telerate Page is specified in the applicable Authentication
Certificate, CMT Telerate Page 7052, for the most recent week, shall be deemed
specified.

          SECTION 113.   Denominations. Unless otherwise specified in the
                         -------------
applicable Authentication Certificate, Notes, other than Foreign Currency Notes,
shall be issued only in denominations of $25 or $1,000, as specified in the
Authentication Certificate, and any integral multiple of such denomination in
excess thereof. Foreign Currency Notes will be issued in equivalent
denominations, as determined by reference to the Market Exchange Rate on the
Business Day immediately preceding the date of issuance unless otherwise
specified in the applicable Authentication Certificate.

          SECTION 114.   Global Securities. The Notes will be issued initially
                         -----------------
in the form of one or more permanent Global Securities registered in the name of
the Depositary (which shall be The Depository Trust Company) or its nominee.
Except under the limited circumstances described below, Notes represented by
such Global Securities will not be exchangeable for, and will not otherwise be
issuable as, Notes in definitive form. The Global Securities described above 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 or its nominee.

          Owners of beneficial interests in such a Global Security will not be
considered the Holders thereof for any purpose under the Indenture, and no
Global Security representing a Note shall be exchangeable, except for another
Global Security of like denomination and tenor to be registered in the name of
the Depositary or its nominee or to a successor Depositary or its nominee or
except as described below. The rights of Holders of such Global Security shall
be exercised only through the Depositary.

                                      19
<PAGE>

          A Global Security shall be exchangeable for Notes registered in the
names of persons other than the Depositary or its nominee only if (i) the
Depositary notifies the Company that it is unwilling or unable to continue as a
Depositary for such Global Security and no successor Depositary shall have been
appointed by the Company within 90 days of receipt by the Company of such
notification, or if at any time the Depositary ceases to be a clearing agency
registered under the Exchange Act at a time when the Depositary is required to
be so registered to act as such Depositary and no successor Depositary shall
have been appointed by the Company within 90 days after it becomes aware of such
cessation, or (ii) the Company in its sole discretion determines that such
Global Security shall be so exchangeable. Any Global Security that is
exchangeable pursuant to the preceding sentence shall be exchangeable for Notes
registered in such names as the Depositary shall direct.

          SECTION 115.   Redemption. If a "make whole" redemption option is
                         ----------
specified in the applicable Authentication Certificate, the Notes will be
redeemable at the option of the Company at any time, at a redemption price equal
to the greater of (i) 100% of their principal amount and (ii) the sum of the
present values of the remaining scheduled payments of principal and interest
thereon (not including any portion of such payments of interest accrued as of
the Redemption Date) discounted to the Redemption Date on a semiannual basis
(assuming a 360-day year consisting of twelve 30-day months) at the Adjusted
Treasury Rate, as calculated by an Independent Investment Banker, plus a number
of basis points specified in the Authentication Certificate plus, in each case,
accrued and unpaid interest on the Notes to the Redemption Date, but interest
installments whose maturity is prior to such Redemption Date will be payable to
the Holders of such Notes of record at the close of business on the relevant
Regular Record Dates referred to on the face thereof, all as provided in the
Indenture.

          If so specified in the applicable Authentication Certificate, the
Notes will be redeemable at the option of the Company on the date or dates prior
to the Stated Maturity Date specified in the applicable Authentication
Certificate at the price or prices ("Redemption Prices") specified in the
applicable Authentication Certificate, together with accrued interest, if any,
to the Redemption Date. Notwithstanding the foregoing, if a date prior to which
the Company may not redeem the Note as part of, or in anticipation of, a
refunding operation (a "Limitation Date") is specified in the applicable
Authentication Certificate and on the applicable Note, the Company may not
redeem the Note prior to the Limitation Date as a part of, or in anticipation
of, any refunding operation by the application, directly or indirectly, of
monies borrowed having an interest cost to the Company of less than the rate
specified in the Authentication Certificate and on the applicable Note.


          Unless otherwise specified in the applicable Authentication
Certificate, the Company may redeem any of the Notes which are redeemable and
remain outstanding either in whole or from time to time in part upon the terms
and conditions set forth in Article Eleven of the Indenture.

          SECTION 116.   Sinking Fund; Repayment at Holder's Option. Unless
                         ------------------------------------------
otherwise specified in the applicable Authentication Certificate, the Company
shall not be obligated to redeem or purchase any Note pursuant to any sinking
fund or analogous provision, or at the option of the Holder, before its Stated
Maturity Date. If the applicable Authentication Certificate specifies one or
more dates on which a Note may be repayable at the option of the Holder, the
Note will be repayable at the Holder's option on the specified Repayment Dates
at the specified repayment price. Unless otherwise specified in the applicable
Authentication Certificate, the repayment price will be equal to 100% of the
principal amount of the Note, together with accrued interest to the date of
repayment.

                                      20
<PAGE>

For Notes issued with Original Issue Discount, the Authentication Certificate
will specify the amount payable upon repayment.

          If applicable, the repayment option may be exercised by the Holder of
a Note for less than the entire principal amount of that Note, but in that
event, the principal amount remaining outstanding after repayment must be in an
authorized denomination. In the event of repayment of a Note in part only, a new
Note or Notes of this series and of like tenor for the unpurchased portion
thereof will be issued in the name of the Holder upon cancellation.

          For the Company to repay a Note, the Paying Agent must receive at
least 30 days but not more than 60 days prior to the Repayment Date: (i) the
Note with the form entitled "Option to Elect Repayment" on the reverse of the
Note duly completed; or (ii) a telegram, telex, facsimile transmission or a
letter form a broker-dealer, commercial bank or trust company in the United
States setting forth the name of the Holder, the principal amount of the Note,
the principal amount of the Note to be repaid, the certificate number or a
description of the tenor and terms of the Note, a statement that the option to
elect repayment is being exercised and a guarantee that the Note to be repaid,
together with the duly completed form entitled "Option to Elect Repayment" on
the reverse of the Note will be received by the Paying Agent by the fifth
Business Day after the date of that telegram, telex, facsimile transmission or
letter; provided, however, that the telegram, telex, facsimile transmission or
letter will only be effective if that Note and completed form are received by
the Paying Agent by the fifth Business Day after the date of that telegram,
telex, facsimile transmission or letter.

          If Notes of any series are subject to repayment in whole or in part at
the option of the Holders, the Company, on or before the Repayment Date, will
deposit with the Trustee or with a Paying Agent (or, if the Company is acting as
its own Paying Agent, segregate and hold in trust as provided in Section 1003 of
the Indenture) an amount of money sufficient to pay the principal (or, if so
provided by the terms of the Notes of any series, a percentage of the principal)
of, and accrued interest on, all the Notes or portions thereof, as the case may
be, to be repaid on such date.

          Exercise of the repayment option by the Holder of a Note will be
irrevocable. The Holder may exercise the repayment option for less than the
entire principal amount of the Note. In that event, the principal amount of the
Note remaining outstanding after repayment must be an authorized denomination.

          If a Note is represented by a Global Security, the Depositary or its
nominee will be the Holder of the Note and therefore will be the only entity
that can exercise a right to repayment.

          SECTION 117.   Currency. The Notes may be denominated, and payments of
                         --------
principal of and interest on the Notes will be made, in United States dollars or
in such foreign currencies or composite currencies (a "Specified Currency") as
may be specified in the applicable Authentication Certificate (each such Note
denominated in a Specified Currency other than United States dollars, a "Foreign
Currency Note").

          SECTION 118.   Paying Agent; Payments. (i) The Trustee shall initially
                         ----------------------
serve as Paying Agent with respect to the Notes, with the Place of Payment
initially being the Corporate Trust Office of the Trustee; (ii) payment of
principal of and any premium and interest on Notes represented by any

                                      21
<PAGE>

Global Security (as defined below) will be made to the Depositary (as specified
below) or its nominee, as the case may be, as the sole registered owner and the
sole Holder of the Notes represented thereby for all purposes under the
Indenture; (iii) unless otherwise specified in the applicable Authentication
Certificate and except as provided in Section 307 of the Original Indenture,
payments of interest with respect to any Note payable in United States dollars
(other than interest payable at the Stated Maturity Date or any earlier
Redemption Date or Repayment Date) will be made by check mailed to the Holder at
the address of such Holder appearing on the Security Register for the Notes at
the applicable Regular Record Date, and (iv) except as provided in Section 307
of the Original Indenture, interest payable on any Interest Payment Date (other
than interest payable at the Stated Maturity Date or any earlier Redemption Date
or Repayment Date) with respect to a Note will be paid to the Person in whose
name that Note is registered on the Security Register at the applicable Regular
Record Date for the payment of such interest, provided that interest payable on
any Interest Payment Date that is also the Stated Maturity Date or any earlier
Redemption Date or Repayment Date will be made to the Person to whom principal
is payable. A Holder of Notes shall be entitled to payment by wire transfer of
immediately available funds if appropriate payment instructions have been
received in writing by the Trustee at its Corporate Trust Office on or prior to
the Regular Record Date for an Interest Payment Date or at least 16 days prior
to the Stated Maturity Date or any earlier Redemption Date or Repayment Date. In
the event that payment is so made in accordance with instructions of the Holder,
such wire transfer shall be deemed to constitute full and complete payment of
such interest, principal and any premium on the Notes. Payment of the principal
of and any premium due with respect to any Note at the Stated Maturity Date or
any earlier Redemption Date or Repayment Date, together with any interest
payable at such date, will be made in immediately available funds against
presentation and surrender of such Note at the Corporate Trust Office of the
Trustee accompanied by wire transfer instructions, provided that the Note is
presented to the Trustee in time for the Trustee to make payments in such funds
in accordance with its normal procedures. Unless otherwise specified in the
applicable Authentication Certificate, payments of principal and any premium and
interest on a Foreign Currency Note will be made in United States dollars unless
the Holder elects to receive all or a portion of the payments on such Foreign
Currency Notes in the Specified Currency. To do so, the Holder must send a
written request to the Paying Agent as follows: for payments of interest, on or
prior to the applicable Regular Record Date; or for payments of principal, at
least 16 calendar days prior to the Stated Maturity Date or any earlier
Redemption Date or Repayment Date. To revoke this election for all or a portion
of the payments on the Foreign Currency Notes, the Holder must send written
notice to the Paying Agent as follows: on or prior to the applicable Regular
Record Date, for payments of interest; or at least 16 calendar days prior to the
Stated Maturity Date or any earlier Redemption Date or Repayment Date, for
payments of principal. If the Holder elects to be paid in the Specified
Currency, the Paying Agent will pay the principal, premium, if any, or interest,
if any, on the Foreign Currency Notes by wire transfer of immediately available
funds in the Specified Currency to the Holder's account at a bank located
outside the United States, and in the case of a Foreign Currency Note payable in
euros, in a country for which the euro is a lawful currency, if the Paying Agent
has received the Holder's written wire transfer instructions on or prior to the
Regular Record Date for an Interest Payment Date and at least 16 calendar days
prior to the payment date for principal or premium, if any. If a payment cannot
be made by wire transfer because the required information has not been received
by the Trustee on or before the requisite date, a notice will be mailed to the
Holder at its registered address requesting the relevant information, and no
payment will be made until a designation is made. The Paying Agent will only pay
the principal of the Foreign Currency Notes, premium, if any, and interest, if
any, due at the Stated Maturity Date

                                      22
<PAGE>

or any earlier Redemption Date or Repayment Date, upon surrender of the Foreign
Currency Notes at the office or agency of the Paying Agent.

         The Exchange Rate Agent specified in the applicable Authentication
Certificate (the "Exchange Rate Agent") will convert the Specified Currency into
United States dollars for Holders who do not elect to receive payments in the
Specified Currency. The conversion will be based on a bid quotation in New York
City received by the Exchange Rate Agent at approximately 11:00 a.m., New York
City time, on the second Business Day preceding the applicable payment date from
a recognized foreign exchange dealer for the purchase by the quoting dealer of
the Specified Currency for United States dollars for settlement on the payment
date, in the aggregate amount of the United States dollars payable to those
Holders of Notes, and at which the dealer commits to execute a contract. The
dealer providing the quotation may be the Exchange Rate Agent unless the
Exchange Rate Agent is an affiliate of the Company. If no bid quotation is
available, payments will be made in the Specified Currency. The Holders of
Foreign Currency Notes will pay all currency exchange costs by deductions from
the amounts payable on the Foreign Currency Notes.

         If the Specified Currency is unavailable due to the imposition of
exchange controls or other circumstances beyond the control of the Company, the
Company may satisfy its obligations to Holders of Foreign Currency Notes by
making those payments on the date of payment in United States dollars on the
basis of the noon dollar buying rate in New York City for the cable transfers of
the Specified Currency, published by the Federal Reserve Bank of New York on the
second Business Day prior to the applicable payment date (the "Market Exchange
Rate"). If that rate of exchange is not then available or is not published for a
Specified Currency, the Market Exchange Rate will be based on the most recently
available Market Exchange Rate, or as otherwise specified in the applicable
Authentication Certificate.

         The foregoing provisions do not apply if a Specified Currency is
unavailable because it has been replaced by the euro. If the euro has been
substituted for a Specified Currency, the Company may, at its option, or will,
if required by applicable law, without consent of the Holders of the affected
Foreign Currency Notes, pay the principal, premium, if any, or interest, if any,
on any Foreign Currency Note denominated in the Specified Currency in euros
instead of the Specified Currency, in conformity with legally applicable
measures taken pursuant to, or by virtue of, the treaty established by the
European Community, as amended by the treaty on European Union. Any payment made
in United States dollars or in euros as described above where required payment
is in an unavailable Specified Currency will not constitute an Event of Default
under the Indenture.

         The portion of the principal amount of the Notes, other than Original
Issue Discount Notes which shall be payable upon declaration of acceleration of
maturity thereof shall not be other than the principal amount thereof. The
portion of the principal amount of any Original Issue Discount Notes which shall
be payable upon declaration of acceleration of the Maturity thereof pursuant to
Section 502 of the Indenture shall be determined by an Officer from time to time
and shall be specified in the applicable Authentication Certificate.

         SECTION 119.    Additional Terms.
                         ----------------

                 (i)     Unless otherwise specified in the applicable
         Authentication Certificate, the Notes shall be defeasible pursuant to
         Section 402 of the Indenture.

                                      23
<PAGE>

          (ii)      Unless otherwise specified in the applicable Authentication
     Certificate, the Notes shall be subject to the Events of Default specified
     in Section 501, paragraphs (1) through (6), of the Indenture.

          (iii)     Unless otherwise specified in the applicable Authentication
     Certificate, the Notes shall be subject to the covenants specified in
     Article Ten of the Indenture.

          (iv)      Subject to the terms of the Indenture including, without
     limitation, this supplemental indenture, the Notes shall have such other
     terms (which may be in addition to or different from the terms set forth
     herein) as are specified in the applicable Authentication Certificate.

     SECTION 120.   Establishment of Procedures for Authentication of Notes
                    -------------------------------------------------------
Pursuant to Section 303 of the Indenture. Pursuant to Section 303 of the
----------------------------------------
Indenture, Notes may be authenticated by the Trustee and issued in accordance
with the administrative procedures agreed upon from time to time by the Company,
the Trustee and the distribution agents for the Notes and upon receipt by the
Trustee (including by facsimile) of an Authentication Certificate supplemental
to this supplemental indenture, in substantially the form attached as Exhibit C
hereto (an "Authentication Certificate"), setting forth the information
specified or contemplated therein for the particular Notes to be authenticated
and issued.

                                  ARTICLE II
                           MISCELLANEOUS PROVISIONS

     SECTION 201.   Recitals by Company. The recitals in this Fourth
                    -------------------
Supplemental Indenture are made by the Company only and not by the Trustee, and
all of the provisions contained in the Original Indenture in respect of the
rights, privileges, immunities, powers and duties of the Trustee shall be
applicable in respect of the Notes and of this Fourth Supplemental Indenture as
fully and with like effect as if set forth herein in full.

     SECTION 202.   Ratification and Incorporation of Original Indenture. As
                    ----------------------------------------------------
supplemented hereby, the Original Indenture is in all respects ratified and
confirmed, and the Original Indenture and this Fourth Supplemental Indenture
shall be read, taken and construed as one and the same instrument.

     SECTION 203.   Executed in Counterparts. This Fourth Supplemental Indenture
                    ------------------------
may be executed in several counterparts, each of which shall be deemed to be an
original, and such counterparts shall together constitute but one and the same
instrument.

     SECTION 204.   Assignment. The Company shall have the right at all times to
                    ----------
assign any of its rights or obligations under the Indenture with respect to the
Notes to a direct or indirect wholly-owned subsidiary of the Company; provided
that, in the event of any such assignment, the Company shall remain primarily
liable for the performance of all such obligations. The Indenture

                                      24
<PAGE>

may also be assigned by the Company in connection with a transaction described
in Article Eight of the Original Indenture.

                                      25
<PAGE>

     IN WITNESS WHEREOF, each party hereto has caused this instrument to be
signed in its name and behalf by its duly authorized officer, all as of the day
and year first above written.


                                         CONSOLIDATED NATURAL GAS COMPANY



                                         By:____________________________________

                                         Name:__________________________________

                                         Title:_________________________________



                                         BANK ONE TRUST COMPANY, NATIONAL
                                         ASSOCIATION, as Trustee


                                         By:____________________________________

                                         Name:__________________________________

                                         Title:_________________________________

                                      26
<PAGE>

                                                                       EXHIBIT A

                             FORM OF FIXED RATE NOTE


REGISTERED NO.
CUSIP NO.

                        CONSOLIDATED NATURAL GAS COMPANY
                           MEDIUM-TERM NOTE, SERIES A
                                  (Fixed Rate)

[UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE
DEPOSITORY TRUST COMPANY (55 WATER STREET, NEW YORK, NEW YORK) (DTC) TO THE
ISSUER OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY
CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF [CEDE & CO.] OR SUCH OTHER NAME
AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC (AND ANY PAYMENT IS MADE
TO [CEDE & CO.] OR SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED
REPRESENTATIVE OF DTC), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR
OTHERWISE BY OR TO ANY PERSON IS WRONGFUL SINCE THE REGISTERED OWNER HEREOF,
[CEDE & CO.,] HAS AN INTEREST HEREIN.]*

[THIS MEDIUM-TERM NOTE, SERIES A, IS A GLOBAL SECURITY WITHIN THE MEANING OF THE
INDENTURE HEREINAFTER REFERRED TO AND IS REGISTERED IN THE NAME OF A DEPOSITARY
OR A NOMINEE THEREOF. THIS MEDIUM-TERM NOTE, SERIES A, MAY NOT BE EXCHANGED IN
WHOLE OR IN PART FOR A SECURITY REGISTERED, AND NO TRANSFER OF THIS MEDIUM TERM
NOTE, SERIES A, IN WHOLE OR IN PART MAY BE REGISTERED IN THE NAME OF ANY PERSON
OTHER THAN SUCH DEPOSITARY OR A NOMINEE THEREOF, EXCEPT IN THE LIMITED
CIRCUMSTANCES DESCRIBED IN THE INDENTURE.]*

<TABLE>
<S>                                   <C>                                 <C>
Principal Amount:                     Interest Rate:                      Stated Maturity Date:

Original Issue Date:                  Authorized Denomination (if other   Specified Currency:
                                      than U.S. $1,000 and integral
                                      multiples thereof):

Interest Payment Date(s):             Regular Record Dates:               Exchange Rate Agent:

Limitation Date:                      Refunding Rate:

Redemption Terms:                     Make Whole Redemption:  ____        Repayment Terms:
                                           Basis points:
                                      Other Redemption Price:
Original Issue Discount Note:         Yield to Maturity:


__  Original Issue Discount           __  Original Issue Discount
    Security Subject to Special           Security for Tax Purposes Only
    Provisions Herein
Additional Terms (if any):
</TABLE>

----------------------------
*  Insert in Global Securities

                                     A - 1
<PAGE>

FOR PURPOSES OF SECTION 1273 AND 1275 OF THE INTERNAL REVENUE CODE, THE AMOUNT
OF ORIGINAL ISSUE DISCOUNT ON THIS NOTE IS THE PERCENTAGE OF ITS PRINCIPAL
AMOUNT SET FORTH ABOVE AND THE YIELD TO MATURITY IS THE PERCENTAGE SET FORTH
ABOVE.

         CONSOLIDATED NATURAL GAS COMPANY, a corporation duly organized and
existing under the laws of Delaware (herein called the "Company", which term
includes any successor Person under the Indenture hereinafter referred to), for
value received, hereby promises to pay to [Cede & Co.]* or registered assigns,
the principal sum of ______________ on the Stated Maturity Date shown above (or
upon earlier redemption or repayment) (such Stated Maturity Date or earlier date
of redemption or repayment referred to herein as the "Maturity Date"), and to
pay interest thereon from the Original Issue Date shown above, or from the most
recent Interest Payment Date to which interest has been paid or duly provided
for, semiannually in arrears on each Interest Payment Date as specified above in
each year, commencing on the Interest Payment Date next succeeding the Original
Issue Date shown above and on the Maturity Date at the rate per annum shown
above until the principal hereof is paid or made available for payment. The
interest so payable, and punctually paid or duly provided for, on any Interest
Payment Date (other than an Interest Payment Date that is the Maturity Date)
will, as provided in such Indenture, be paid to the Person in whose name this
Medium-Term Note, Series A (the "Note"), or one or more predecessor Notes, is
registered at the close of business on the Regular Record Date for such
interest, which shall be the Regular Record Date as specified above (whether or
not a Business Day, as hereinafter defined), as the case may be, next preceding
such Interest Payment Date, provided, however, that, if the Original Issue Date
shown above is between a Regular Record Date and the next succeeding Interest
Payment Date, interest payments will commence on the second Interest Payment
Date next succeeding the Original Issue Date to the holder of this Note on the
Regular Record Date with respect to such second Interest Payment Date; and
provided, further, that interest payable on an Interest Payment Date that is the
Maturity Date will be paid to the Person to whom principal is payable. Except as
otherwise provided in the Indenture (hereinafter defined), any such interest not
so punctually paid or duly provided for will forthwith cease to be payable to
the Holder on such Regular Record Date and may either be paid to the Person in
whose name this Note (or one or more predecessor Notes) is registered at the
close of business on a Special Record Date for the payment of such defaulted
interest to be fixed by the Trustee, notice whereof shall be given to Holders of
Securities of this series not less than 10 days prior to such Special Record
Date, or be paid at any time in any other lawful manner not inconsistent with
the requirements of any securities exchange, if any, on which the Securities of
this series shall be listed, and upon such notice as may be required by any such
exchange, all as more fully provided in the Indenture.

         Payment of the principal of (and premium, if any) and interest on this
Note will be made in immediately available funds upon surrender of this Note, in
the case of payment due at the Maturity Date, at the corporate trust office of
the Trustee, maintained for that purpose in the Borough of Manhattan, New York
City and currently located at 153 West 51st Street, New York, New York 10019;
provided, however, that if such payment of principal or interest is to be made
in a Specified Currency other than U.S. dollars, as provided on the reverse
hereof, by wire transfer to an account maintained by the Holder hereof in the
country of such Specified Currency shown above (the Holder's Overseas Account),
as designated by the Holder of this Note by written notice to the Trustee on or
prior to the Regular Record Date or at least 16 days prior to the Maturity Date
or in connection with any transfer after such sixteenth day. In the absence of
such designation or if such wire transfer cannot be made for any other reason,
the Trustee will mail a notice to the address of the Person entitled thereto as
such address shall appear on the Security Register on the Regular Record Date
for any payment of interest or on the date of such notice in connection with
payment of principal, as the case may be, requesting a designation pursuant to
which such wire transfer can be made and no such payment shall be made until
such designation is made. As more fully provided on the reverse hereof, if
payment of principal of (and premium, if any) and interest on this Note is to be
made in U.S. dollars, payment will be made (upon surrender of the Note, in the
case of payment due at the Maturity Date, at the foregoing corporate trust
office) by wire transfer to an account designated by the Holder (the Holder's
U.S. Account) by written notice to the Trustee on or prior to the Regular Record
Date or at least 16 days prior to the Maturity Date, or, in the absence of such
designation, by check mailed to the address of the Person entitled thereto as
such address shall appear on the Security Register on the Regular Record Date
for any payment of interest or the Maturity Date shown above for payment of
principal, as the case may be. As more fully provided on the reverse hereof,
payment of the principal of (and premium, if any) and interest on this Note will
be made in such coin or currency of the United States of America as at the time
of payment is legal tender for payment of public and private debts or, if
payment of the principal of and interest on this Note is to be made in a
Specified Currency other than U.S. dollars, subject to applicable laws and
regulations, in the Specified Currency shown above.

                                     A - 2
<PAGE>

         REFERENCE IS HEREBY MADE TO THE FURTHER PROVISIONS OF THIS SECURITY SET
FORTH ON THE REVERSE HEREOF, WHICH FURTHER PROVISIONS SHALL FOR ALL PURPOSES
HAVE THE SAME EFFECT AS IF SET FORTH AT THIS PLACE.

         Unless the certificate of authentication hereon has been executed by
the Trustee by manual signature, this Security shall not be entitled to any
benefit under the Indenture or be valid or obligatory for any purpose.

         IN WITNESS WHEREOF, the Company has caused this instrument to be duly
executed.




Dated:                                    Consolidated Natural Gas Company


                                          By: __________________________________

                                          Name: ________________________________

                                          Title: _______________________________


                                     A - 3
<PAGE>

                         CERTIFICATE OF AUTHENTICATION


         This is one of the Securities of the series designated therein referred
to in the within-mentioned Indenture.

                               BANK ONE TRUST COMPANY, NATIONAL ASSOCIATION,
                               as Trustee


                               By: ________________________________
                                    Authorized Officer

                                     A - 4
<PAGE>

                       CONSOLIDATED NATURAL GAS COMPANY
                          MEDIUM-TERM NOTE, SERIES A

         This Note is one of a duly authorized issue of securities of the
Company (herein called the "Securities"), issued and to be issued in one or more
series under an indenture, dated as of April 1, 2001, as heretofore supplemented
and amended and as further supplemented by a Fourth Supplemental Indenture dated
as of ___________, 2002 (the "Fourth Supplemental Indenture") (collectively, as
amended or supplemented from time to time, herein called the "Indenture," which
term shall have the meaning assigned to it in such instrument) between the
Company and Bank One Trust Company, National Association, as Trustee (the
"Trustee", which term includes any successor trustee under the Indenture), to
which the Indenture and all indentures supplemental thereto reference is hereby
made for a statement of the respective rights, limitations of rights, duties and
immunities thereunder of the Company, the Trustee and the Holders of the
Securities issued thereunder and of the terms upon which the Securities are, and
are to be, authenticated and delivered. This Security is one of the series
designated on the face hereof as Medium-Term Notes, Series A (the "Notes").
There is no limit on the aggregate principal amount of the Notes and, in
addition, any issuance of a tranche of Notes may be reopened at any time for the
issuance of additional Notes having the same interest rate, maturity and other
terms as Notes of such tranche previously issued.

         The fixed rate Securities of this series are identical except for
Specified Currency, denomination, interest rate, issue date, Stated Maturity
Date, redemption or repayment terms, if any, extent of original issue discount,
if any, and any additional terms set forth on the face hereof.

         The principal of (and premium, if any) and interest on this Note are
payable by the Company in the Specified Currency shown on the face hereof. If
this Note is denominated in a Specified Currency other than U.S. dollars, unless
the Holder hereof shall have elected to receive payments in such Specified
Currency, payment of the principal of (and premium, if any) and interest on this
Note will be made in U.S. dollars. Bank One Trust Company, National Association,
in its capacity as exchange rate agent, or such other Person as shall be
appointed by the Company (the "Exchange Rate Agent"), will convert payments of
principal of (and premium, if any) and interest on this Note to U.S. dollars.
The amount to be received by a Holder of this Note not electing to receive
payments in such Specified Currency will be based on a bid quotation in New York
City received by the Exchange Rate Agent at approximately 11:00 A.M. New York
City time on the second Business Day preceding the applicable payment date from
a recognized foreign exchange dealer (which may be the Exchange Rate Agent) for
the purchase by the quoting dealer of the Specified Currency for U.S. dollars
for settlement on such payment date in the aggregate amount of the U.S. dollars
payable to all Holders of Notes receiving payment in U.S. dollars and at which
the dealer commits to execute a contract. If such bid quotation is not
available, payments will be made in the Specified Currency. All currency
exchange costs will be borne pro rata by the Holders by deductions from such
payments in U.S. dollars.

         As used herein, "Business Day" means any day, other than a Saturday or
Sunday, that is neither (a) a legal holiday nor (b) a day on which banking
institutions are authorized or required by law, regulation or executive order to
close in New York City; provided, however, that for Notes denominated in a
Specified Currency other than United States dollars that day is also not a day
on which commercial banking institutions are authorized or required by law,
regulation or executive order to close in the Principal Financial Center of the
country issuing the Specified Currency (or for Notes denominated in euros, that
day is also a day on which the Trans-European Automated Real-time Gross
Settlement Express Transfer System, commonly referred to as "TARGET," is
operating). "Principal Financial Center" means , as applicable, the capital city
of the country issuing the Specified Currency; provided, however, that the
Principal Financial Center will be New York City for United States dollars,
Sydney for Australian dollars, Toronto for Canadian dollars, Johannesburg for
South African rand and Zurich for Swiss francs.

         If this Note is denominated in a Specified Currency other than U.S.
dollars, the Holder of this Note may elect to receive payment of the principal
of and interest on this Note in the Specified Currency by transmitting a written
request for such payment to the Trustee at its corporate trust office in New
York City on or prior to the Regular Record Date or at least 16 calendar days
prior to the Maturity Date, as the case may be. Such request may be in writing
(mailed or hand delivered) or may be by cable, telex or other form of facsimile
transmission. The Holder of this Note need not file a separate election for each
such payment. Such election, once properly made, will remain in effect until
this Note is transferred or until changed by written notice to the Trustee, but
written notice of any such change must be received by

                                     A - 5
<PAGE>

the Trustee on or prior to the Regular Record Date or at least 16 calendar days
prior to the Maturity Date, as the case may be.

         In order for the Holder of this Note to receive payments by wire
transfer, such Holder shall designate an appropriate account (being either the
Holder's Overseas Account or the Holder's U.S. Account, as the case may be).
Such designation shall be made by filing the appropriate information with the
Trustee at its corporate trust office in New York City on or prior to the
Regular Record Date for an Interest Payment Date or at least 16 calendar days
prior to the Maturity Date, except as provided on the face hereof. The Trustee
will, subject to applicable laws and regulations (in the case of a Specified
Currency other than U.S. dollars), and until it receives notice to the contrary
or until this Note is transferred, make such payment and all succeeding payments
to such Holders by wire transfer to the designated Holder's Overseas Account or
Holder's U.S. Account, as the case may be. The Company will pay any
administrative costs imposed by banks in connection with making wire transfer of
payments, but any tax, assessment, governmental or other charge imposed upon
such payments will be borne by the Holder of this Note and deducted therefrom.

         If the Specified Currency other than U.S. dollars is not available for
the payment of principal or interest with respect to this Note due to the
imposition of exchange controls or other circumstances beyond the control of the
Company, the Company will be entitled to satisfy its obligations to the Holder
of this Note by making such payment in U.S. dollars on the basis of the Market
Exchange Rate (defined as the noon dollar buying rate in New York City for cable
transfers for such Specified Currency, as certified for customs purposes (or, if
not so certified, as otherwise determined) by the Federal Reserve Bank of New
York) as of the second Business Day prior to payment or, if the Market Exchange
Rate is not then available, on the basis of the most recently available Market
Exchange Rate, or as otherwise specified in the terms of this Note. The Market
Exchange Rate determined as provided above by the Exchange Rate Agent and
certified by the Company to the Trustee shall be conclusive absent manifest
error. Any payment made in U.S. dollars under those circumstances where the
required payment is in a Specified Currency other than U.S. dollars will not
constitute an Event of Default under the Indenture with respect to the Notes. A
good faith determination by the Exchange Rate Agent that the Specified Currency
is unavailable shall be binding upon the Trustee and the Holder of this Note.

         In the case where the Interest Payment Date or the Maturity Date does
not fall on a Business Day, payment of principal (and premium, if any) or
interest otherwise payable on such day need not be made on such day, but may be
made on the next succeeding Business Day with the same force and effect as if
made on the Interest Payment Date or the Maturity Date and no interest shall
accrue for the period from and after the Interest Payment Date or the Maturity
Date.

         Payments of interest on this Note will include interest accrued to but
excluding the respective Interest Payment Dates. Interest payments for this Note
shall be computed and paid on the basis of a 360-day year of twelve 30-day
months.

         If so provided on the face of this Note, this Note may be redeemed by
the Company in accordance with the Redemption Terms set forth on the face
hereof. If no Redemption Terms are set forth on the face hereof, this Note may
not be redeemed prior to the Maturity Date. On and after the initial Redemption
Date specified in the Redemption Terms, if any, this Note may be redeemed at any
time in whole or in part (provided that any remaining principal amount of this
Note shall be equal to an authorized denomination) at the option of the Company,
at the applicable Redemption Price specified in the Redemption Terms, together
with interest thereon payable to the Redemption Date, on notice given not more
than 60 nor less than 20 calendar days prior to the Redemption Date. In the
event of redemption of this Note in part only, a new Note for the unredeemed
portion hereof shall be issued in the name of the Holder hereof upon the
surrender hereof.

         Notwithstanding the foregoing, the Company may not, prior to the
Limitation Date specified on the face hereof, if any, redeem this Note as
contemplated by the next preceding paragraph as a part of, or in anticipation
of, any refunding operation by the application, directly or indirectly, of
monies borrowed having an interest cost to the Company (calculated in accordance
with generally accepted financial practice) of less than the Refunding Rate
specified on the face hereof, if any. If a Make-Whole Redemption option is
specified on the face hereof, this Note will be redeemable at the option of the
Company at any time at the Redemption Price described in Section 115 of the
Fourth Supplemental Indenture, calculated, where applicable, on the basis of the
Adjusted Treasury Rate referred to therein plus a number of basis points
specified on the face hereof, plus accrued and unpaid interest to the Redemption
Date.

         The Notes will not have a sinking fund.

                                     A - 6
<PAGE>

         If Repayment Terms are indicated on the face of this Note, the Company
may be required to repurchase this Note at the option of the Holder, in whole or
in part, on the Repayment Date(s) and at the applicable Repayment Price(s)
specified in the Repayment Terms, plus accrued interest, if any, to the
applicable Repayment Date. On or before the applicable Repayment Date, the
Company shall deposit with the Trustee money sufficient to pay the applicable
Repayment Price and any interest accrued on the portion of this Note to be
tendered for repayment. On and after such Repayment Date, interest will cease to
accrue on this Note or any portion hereof tendered for repayment.

         The repayment option may be exercised by the Holder of this Note for
less than the entire principal amount hereof, but in that event, the principal
amount hereof remaining outstanding after repayment must be in an authorized
denomination. In the event of repurchase of this Note in part only, a new Note
or Notes of this series and of like tenor for the unpurchased portion hereof
will be issued in the name of the Holder hereof upon the cancellation hereof.

         In order for this Note to be repaid, the Trustee must receive at least
30 calendar days but not more than 60 calendar days prior to the Repayment Date
(i) this Note with the form entitled "Option to Elect Repayment" attached to
this Note duly completed or (ii) a facsimile transmission or a letter from a
member of a national securities exchange or the National Association of
Securities Dealers, Inc. or a commercial bank or trust company in the United
States setting forth the name of the Holder of this Note, the principal amount
of this Note, the principal amount of this Note to be repaid, the registered
number or a description of the tenor and terms of this Note, a statement that
the option to elect repayment is being exercised thereby, and a guarantee that
this Note to be repaid, together with the duly completed form entitled "Option
to Elect Repayment" attached to this Security, will be received by the Trustee
not later than the fifth Business Day after the date of such facsimile
transmission or letter; however, such facsimile transmission or letter shall
only be effective if this Note and duly completed form are received by the
Trustee by such fifth Business Day. Such notice, once given, will be irrevocable
unless waived by the Company.

         Unless otherwise indicated on the face hereof, this Note will not be
subject to repayment at the option of the Holder.

         If an Event of Default with respect to the Notes shall occur and be
continuing, the principal of the Notes may be declared due and payable in the
manner and with the effect provided in the Indenture; provided, however, that if
this Note is an Original Issue Discount Note, the provisions set forth below
under the caption "Special Provisions" shall supercede and replace the
provisions of this paragraph.

         The Indenture permits, with certain exceptions as therein provided, the
amendment thereof and the modification of the rights and obligations of the
Company and the rights of the Holders of the Securities of each series to be
affected under the Indenture at any time by the Company and the Trustee with the
consent of the Holders of a majority in principal amount of the Securities at
the time Outstanding of each series to be affected. The Indenture also contains
provisions permitting the Holders of specified percentages in principal amount
of the Securities of each series at the time Outstanding, on behalf of the
Holders of all Securities of such series, to waive certain past defaults under
the Indenture and their consequences. Any such consent or waiver by the Holder
of this Note shall be conclusive and binding upon such Holder and upon all
future Holders of this Note and of any Note issued upon the registration of
transfer hereof or in exchange herefor or in lieu hereof, whether or not
notation of such consent or waiver is made upon this Note.

         As provided in and subject to the provisions of the Indenture, the
Holder of this Note shall not have the right to institute any proceeding with
respect to the Indenture or for the appointment of a receiver or trustee or for
any other remedy thereunder, unless such Holder shall have previously given the
Trustee written notice of a continuing Event of Default with respect to the
Notes, the Holders of not less than a majority in principal amount of the Notes
at the time Outstanding shall have made written request to the Trustee to
institute proceedings in respect of such Event of Default as Trustee and offered
the Trustee reasonable indemnity, and the Trustee shall not have received from
the Holders of a majority in principal amount of the Notes at the time
Outstanding a direction inconsistent with such request, and shall have failed to
institute any such proceeding for 60 days after receipt of such notice, request
and offer of indemnity. The foregoing shall not apply to any suit instituted by
the Holder of this Note for the enforcement of any payment of principal hereof
or premium, if any, or interest hereon on or after the respective due dates
expressed or provided for herein.

         No reference herein to the Indenture and no provision of this Note or
of the Indenture shall alter or impair the obligation of the Company, which is
absolute and unconditional, to pay the principal of (and premium, if any) and
interest

                                     A - 7
<PAGE>

on this Note at the times, place and rate, in the coin or currency, and to the
manner, herein prescribed.

         As provided in the Indenture and subject to certain limitations therein
set forth, the transfer of this Note is registrable in the Security Register,
upon surrender of this Note, for registration of transfer at the office or
agency of the Company in any place where the principal of and any premium and
interest on this Note are payable, duly endorsed by, or accompanied by a written
instrument of transfer in form satisfactory to the Company and the Security
Registrar duly executed by, the Holder hereof or his attorney duly authorized in
writing, and thereupon one or more new Notes having the same Stated Maturity
Date and Original Issue Date, of authorized denominations and of like tenor and
for the same aggregate principal amount in the same Specified Currency, will be
issued to the designated transferee or transferees.

         The Notes are issuable only in registered form without coupons and
unless otherwise specified on the face hereof, in denominations of U.S. $1,000
and in integral multiples of U.S. $1,000 in excess thereof or the approximate
equivalent of U.S. $1,000 in the Specified Currency in which this Note is
denominated (if not U.S. dollars) at the Market Exchange Rate on the Business
Day immediately preceding the trade date for the original issuance of each
tranche of Notes, as determined by the Exchange Rate Agent. As provided in the
Indenture and subject to certain limitations therein set forth, Notes are
exchangeable for a like aggregate principal amount of Notes having the same
Specified Currency, Stated Maturity Date and Original Issue Date of any
authorized denominations as requested by the Holder surrendering the same, upon
surrender of the Note or Notes to be exchanged at the office or agency of the
Company.

         No service charge shall be made for any such registration of transfer
or exchange, but the Company may require payment of a sum sufficient to cover
any tax or other governmental charge payable in connection therewith.

         Prior to due presentment of this Note for registration of transfer, the
Company, the Trustee and any agent of the Company, or the Trustee may treat the
Person in whose name this Note is registered as the absolute owner hereof for
all purposes, whether or not this Note be overdue, and neither the Company, the
Trustee nor any such agent shall be affected by notice to the contrary.

         Reference in this Note to "U.S.$" or "U.S. dollars", is to the currency
of the United States of America. Reference in this Note to the "Specified
Currency" is to the Specified Currency shown on the face hereof. All terms used
in this Note and not otherwise defined herein which are defined in the Indenture
shall have the meanings assigned to them in the Indenture.

         This Note shall be governed by and construed in accordance with the
laws of the State of New York.

                               SPECIAL PROVISIONS

                  Unless otherwise indicated on the face hereof under
"Additional Terms", if this Note is an Original Issue Discount Note subject to
these Special Provisions, as indicated on the face hereof, the amount due and
payable on this Note in the event that the principal amount hereof is declared
due and payable prior to the Stated Maturity Date hereof or in the event that
this Note is redeemed shall be the Amortized Face Amount (as defined below) of
this Note or, in the case of redemption, the specified percentage of the
Amortized Face Amount of this Note on the date such payment is due and payable
as determined by the Company, plus any accrued but unpaid "qualified stated
interest" (as defined in Section 1.1273-1 of the United States Treasury
Department Regulations (the "Treasury Regulations")).

                  The "Amortized Face Amount" of this Note shall be the amount
equal to the sum of (i) the issue price (as defined below) of this Note and (ii)
that portion of the difference between the issue price and the principal amount
of this Note that has been amortized at the Stated Yield (as defined below) of
this Note (computed in accordance with Section 1272(a)(4) of the Internal
Revenue Code of 1986, as amended, and Section 1.1275-1(b) of the Treasury
Regulations, in each case as in effect on the issue date of this Note) at the
date as of which the Amortized Face Amount is calculated, but in no event can
the Amortized Face Amount exceed the principal amount of this Note due at the
Stated Maturity Date hereof. As used in the preceding sentence, the term "issue
price" means the principal amount of this Note due at the Stated Maturity Date
hereof less the Original Issue Discount of this Note specified above. The term
"Stated Yield" of this Note means the Yield to Maturity specified above for the
period from the Issue Date of this Note to the Stated Maturity Date hereof based
on the issue price and principal amount payable at the Stated Maturity Date
hereof.

                                     A - 8
<PAGE>

                  If this Note is issued with an original issue discount, in the
case of a default in payment of principal upon acceleration, redemption or at
Maturity hereof, in lieu of any interest otherwise payable, the overdue
principal of this Note shall bear interest at a rate of interest per annum equal
to the Default Rate set forth within the Additional Terms on the fact hereof (to
the extent that the payment of such interest shall be legally enforceable),
which shall accrue from the date of such acceleration, redemption or Maturity,
as the case may be, to the date payment has been made or duly provided for or
such default has been waived in accordance with the terms of the Indenture.

                                     A - 9
<PAGE>

                                  ABBREVIATIONS


         The following abbreviations, when used in the inscription above in this
instrument shall be construed as though they were written out in full according
to applicable laws or regulations:

TEN COM -   as tenants in common             UNIF GIFT MIN ACT ___ Custodian___

TEN ENT -   as tenants by the entireties                       (Cust)    (Minor)

JT TEN  -   as joint tenants with right of Under Uniform Gifts to Minors Act
            survivorship and not as tenants in                        (State)
            common

Additional abbreviations may also be used though not in the above list.

                                     A-10
<PAGE>

                           [FORM OF TRANSFER NOTICE]

          FOR VALUE RECEIVED the undersigned registered holder hereby sell(s),
assign(s) and transfer(s) unto

   ___________________________________________________________________________
Insert Taxpayer Identification No.
----------------------------------

   ___________________________________________________________________________
Please print or typewrite name and address including zip code of assignee

the within Note and all rights thereunder, hereby irrevocably constituting and
appointing

_________________________________________

attorney to transfer said Note on the books of the Company with full power of
substitution in the premises.

Dated:_______                      ___________________________________
                                        NOTICE:  The signature to this
                                                 assignment must correspond with
                                                 the name as written elsewhere
                                                 upon the within instrument in
                                                 every particular, without
                                                 alteration or enlargement or
                                                 any change whatever.

                                     A-11
<PAGE>

                           OPTION TO ELECT REPAYMENT


         The undersigned hereby irrevocably requests and instructs the Company
to repay the within Note (or portion thereof specified below) pursuant to its
terms at the applicable Repayment Price set forth on the face thereof, together
with the interest to the Repayment Date, to the undersigned at

________________________________________________________________

________________________________________________________________

________________________________________________________________

        (Please print or typewrite name and address of the undersigned)

         If less than the entire principal amount of the within Note is to be
repaid, specify the portion thereof which the Holder elects to have repaid:
______________; and specify the denomination or denominations (which shall not
be less than the minimum authorized denomination) of the Notes to be issued to
the Holder for the portion of the within Note not being repaid (in the absence
of any such specification, one such Note will be issued for the portion not
being repaid): _________________.

Dated: __________________________           _______________________________

                  NOTE: The signature on this Option to Elect Repayment must
correspond with the name as written upon the face of the within instrument in
every particular without alteration or enlargement.

                                     A-12
<PAGE>

                                                                       EXHIBIT B

                          FORM OF FLOATING RATE NOTE

REGISTERED NO.
CUSIP NO.

                       CONSOLIDATED NATURAL GAS COMPANY
                          MEDIUM-TERM NOTE, SERIES A
                                (Floating Rate)

                                [FACE OF NOTE]

[UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE
DEPOSITORY TRUST COMPANY (55 WATER STREET, NEW YORK, NEW YORK) (DTC) TO THE
ISSUER OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY
CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF [CEDE & CO.] OR SUCH OTHER NAME
AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC (AND ANY PAYMENT IS MADE
TO [CEDE & CO.] OR SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED
REPRESENTATIVE OF DTC), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR
OTHERWISE BY OR TO ANY PERSON IS WRONGFUL SINCE THE REGISTERED OWNER HEREOF,
[CEDE & CO.,] HAS AN INTEREST HEREIN.]*

[THIS MEDIUM-TERM NOTE, SERIES A, IS A GLOBAL SECURITY WITHIN THE MEANING OF THE
INDENTURE HEREINAFTER REFERRED TO AND IS REGISTERED IN THE NAME OF A DEPOSITARY
OR A NOMINEE THEREOF. THIS MEDIUM-TERM NOTE, SERIES A, MAY NOT BE EXCHANGED IN
WHOLE OR IN PART FOR A SECURITY REGISTERED, AND NO TRANSFER OF THIS MEDIUM TERM
NOTE, SERIES A, IN WHOLE OR IN PART MAY BE REGISTERED IN THE NAME OF ANY PERSON
OTHER THAN SUCH DEPOSITARY OR A NOMINEE THEREOF, EXCEPT IN THE LIMITED
CIRCUMSTANCES DESCRIBED IN THE INDENTURE.]*

PRINCIPAL AMOUNT:
<TABLE>
<CAPTION>
BASE RATE:                               ORIGINAL ISSUE DATE:                    STATED MATURITY DATE:
<S>                                      <C>                                     <C>
IF LIBOR:                                IF CMT RATE:                            If Floating Rate/Fixed Rate  Note
[_] LIBOR Reuters                        Designated CMT Telerate Page:                  Fixed Interest Rate:_________
[_] LIBOR Telerate                       If page 7052, one week ___ or one              Fixed Rate Commencement
Alternate time for obtaining quotes,     month                                   Date:
if needed:                                                                             ________

INDEX CURRENCY:                           IF INVERSE FLOATING RATE NOTE
                                               Fixed Interest Rate:_________
INDEX MATURITY:                          INITIAL INTEREST RATE:                  INITIAL INTEREST RESET DATE(S):

SPREAD:                                  MINIMUM INTEREST RATE:                  INTEREST PAYMENT DATE(S):

SPREAD MULTIPLIER:                       MAXIMUM INTEREST RATE:                  INTEREST RESET DATE(S)
</TABLE>
_______________________
* Insert in Global Securities

                                      B-1
<PAGE>

<TABLE>
<S>                                      <C>                                     <C>
DAY COUNT CONVENTION                     SPECIFIED CURRENCY:                     Authorized Denomination (if other
[_] Actual/360 for the period from                                               than U.S. $1,000 and integral
     _____ to ____                                                               multiples thereof):
[_] Actual/Actual for the period from
     _____ to ____
Redemption Terms:                        REPAYMENT TERMS:                        LIMITATION DATE:

REFUNDING RATE:                          EXCHANGE RATE AGENT:                    CALCULATION AGENT:

OTHER/ADDITIONAL PROVISIONS:
</TABLE>

         CONSOLIDATED NATURAL GAS COMPANY, a corporation duly organized and
existing under the laws of Delaware (herein called the "Company", which term
includes any successor Person under the Indenture hereinafter referred to), for
value received, hereby promises to pay to [Cede & Co.]* or registered assigns,
the principal sum of ______________ on the Stated Maturity Date shown above (or
upon earlier redemption or repayment) (such Stated Maturity Date or earlier date
of redemption or repayment referred to herein as the "Maturity Date"), and to
pay interest thereon, at a rate per annum equal to the Initial Interest Rate
specified above until the Initial Interest Reset Date specified above and
thereafter at a rate determined in accordance with the provisions specified
above and on the reverse hereof with respect to the Base Rate specified above
until the principal hereof is paid or duly made available for payment. The
Company will pay interest in arrears on each Interest Payment Date, if any,
specified above (each, an "Interest Payment Date"), commencing with the first
Interest Payment Date next succeeding the Original Issue Date specified above,
and on the Maturity Date; provided, however, that if the Original Issue Date
occurs between a Record Date (as defined below) and the next succeeding Interest
Payment Date, interest payments will commence on the second Interest Payment
Date next succeeding the Original Issue Date to the holder of this Note on the
Record Date with respect to such second Interest Payment Date.

         Interest on this Note will accrue from, and including, the immediately
preceding Interest Payment Date to which interest has been paid or duly provided
for (or from, and including, the Original Issue Date if no interest has been
paid or duly provided for with respect to this Note) to, but excluding, the
applicable Interest Payment Date or the Maturity Date, as the case may be (each,
an "Interest Period"). The interest so payable, and punctually paid or duly
provided for, on any Interest Payment Date will, subject to certain exceptions
described herein, be paid to the person in whose name this Note (or one or more
predecessor Notes) is registered at the close of business on the Regular Record
Date for such interest, which shall be the close of business on the fifteenth
calendar day (whether or not a Business Day) preceding such Interest Payment
Date; provided, however, that interest payable on the Maturity Date will be
payable to the person to whom the principal hereof and premium, if any, hereon
shall be payable. Except as otherwise provided in the Indenture (hereinafter
defined), any such interest not so punctually paid or duly provided for will
forthwith cease to be payable to the Holder on such Regular Record Date and may
either be paid to the Person in whose name this Note (or one or more predecessor
Notes) is registered at the close of business on a Special Record Date for the
payment of such defaulted interest to be fixed by the Trustee, notice whereof
shall be given to Holders of Securities of this series not less than 10 days
prior to such Special Record Date, or be paid at any time in any other lawful
manner not inconsistent with the requirements of any securities exchange, if
any, on which the Securities of this series shall be listed, and upon such
notice as may be required by any such exchange, all as more fully provided in
the Indenture.

         Payment of the principal of (and premium, if any) and interest on this
Note will be made in immediately available funds upon surrender of this Note, in
the case of payment due at the Maturity Date, at the corporate trust office of
the Trustee, maintained for that purpose in the Borough of Manhattan, New York
City and currently located at 153 West 51st Street, New York, New York 10019;
provided, however, that if such payment of principal or interest is to be made
in a Specified Currency other than U.S. dollars, as provided on the reverse
hereof, by wire transfer to an account maintained by the Holder hereof in the
country of such Specified Currency shown above (the Holder's Overseas Account),
as designated by the Holder of this Note by written notice to the Trustee on or
prior to the Regular Record Date or at least 16 days prior to the Maturity Date
or in connection with any transfer after such sixteenth day. In the absence of
such designation or if such wire transfer cannot be made for any other reason,
the Trustee will mail a notice to the address

_______________________
* Insert in Global Securities

                                      B-2
<PAGE>

of the Person entitled thereto as such address shall appear on the Security
Register on the Regular Record Date for any payment of interest or on the date
of such notice in connection with payment of principal, as the case may be,
requesting a designation pursuant to which such wire transfer can be made and no
such payment shall be made until such designation is made. As more fully
provided on the reverse hereof, if payment of principal of (and premium, if any)
and interest on this Note is to be made in U.S. dollars, payment will be made
(upon surrender of the Note, in the case of payment due at the Maturity Date, at
the foregoing corporate trust office) by wire transfer to an account designated
by the Holder (the Holder's U.S. Account) by written notice to the Trustee on or
prior to the Regular Record Date or at least 16 days prior to the Maturity Date,
or, in the absence of such designation, by check mailed to the address of the
Person entitled thereto as such address shall appear on the Security Register on
the Regular Record Date for any payment of interest or the Maturity Date shown
above for payment of principal, as the case may be. As more fully provided on
the reverse hereof, payment of the principal of (and premium, if any) and
interest on this Note will be made in such coin or currency of the United States
of America as at the time of payment is legal tender for payment of public and
private debts or, if payment of the principal of and interest on this Note is to
be made in a Specified Currency other than U.S. dollars, subject to applicable
laws and regulations, in the Specified Currency shown above.

         If any Interest Payment Date other than the Maturity Date would
otherwise be a day that is not a Business Day, such Interest Payment Date shall
be postponed to the next succeeding Business Day, except that if LIBOR is an
applicable Base Rate and such Business Day falls in the next succeeding calendar
month, such Interest Payment Date shall be the immediately preceding Business
Day. If the Maturity Date falls on a day that is not a Business Day, the
required payment of principal, premium, if any, and/or interest shall be made on
the next succeeding Business Day with the same force and effect as if made on
the date such payment was due, and no interest shall accrue with respect to such
payment for the period from and after the Maturity Date to the date of such
payment on the next succeeding Business Day.

         REFERENCE IS HEREBY MADE TO THE FURTHER PROVISIONS OF THIS SECURITY SET
FORTH ON THE REVERSE HEREOF, WHICH FURTHER PROVISIONS SHALL FOR ALL PURPOSES
HAVE THE SAME EFFECT AS IF SET FORTH AT THIS PLACE.

         Unless the certificate of authentication hereon has been executed by
the Trustee by manual signature, this Security shall not be entitled to any
benefit under the Indenture or be valid or obligatory for any purpose.

         IN WITNESS WHEREOF, the Company has caused this instrument to be duly
executed.

Dated:                                   CONSOLIDATED NATURAL GAS COMPANY

                                         By:________________________________

                                         Name:______________________________

                                         Title:_____________________________

                                      B-3
<PAGE>

                          CERTIFICATE OF AUTHENTICATION

         This is one of the Securities of the series designated therein referred
to in the within-mentioned Indenture.

                                   BANK ONE TRUST COMPANY, NATIONAL ASSOCIATION,
                                   as Trustee

                                   By: ________________________________
                                         Authorized Officer

                                      B-4
<PAGE>

                        CONSOLIDATED NATURAL GAS COMPANY
                           MEDIUM-TERM NOTE, SERIES A

         This Note is one of a duly authorized issue of securities of the
Company (herein called the "Securities"), issued and to be issued in one or more
series under an indenture, dated as of April 1, 2001, as heretofore supplemented
and amended and as further supplemented by a Fourth Supplemental Indenture dated
as of _________, 2002 (the "Fourth Supplemental Indenture") (collectively, as
amended or supplemented from time to time, herein called the "Indenture," which
term shall have the meaning assigned to it in such instrument) between the
Company and Bank One Trust Company, National Association, as Trustee (the
"Trustee", which term includes any successor trustee under the Indenture), to
which the Indenture and all indentures supplemental thereto reference is hereby
made for a statement of the respective rights, limitations of rights, duties and
immunities thereunder of the Company, the Trustee and the Holders of the
Securities issued thereunder and of the terms upon which the Securities are, and
are to be, authenticated and delivered. This Security is one of the series
designated on the face hereof as Medium-Term Notes, Series A (the "Notes").
There is no limit on the aggregate principal amount of the Notes and, in
addition, any issuance of a tranche of Notes may be reopened at any time for the
issuance of additional Notes having the same interest rate, maturity and other
terms as Notes of such tranche previously issued.

         The floating rate Securities of this series are identical except for
Specified Currency, denomination, interest rate, issue date, Stated Maturity
Date, redemption or repayment terms, if any, whether regular floating rate
Notes, inverse floating rate Notes or floating rate/fixed rate Notes, and any
additional terms set forth on the face hereof.

         The principal of (and premium, if any) and interest on this Note are
payable by the Company in the Specified Currency shown on the face hereof. If
this Note is denominated in a Specified Currency other than U.S. dollars, unless
the Holder hereof shall have elected to receive payments in such Specified
Currency, payment of the principal of (and premium, if any) and interest on this
Note will be made in U.S. dollars. Bank One Trust Company, National Association,
in its capacity as exchange rate agent, or such other Person as shall be
appointed by the Company (the "Exchange Rate Agent"), will convert payments of
principal of (and premium, if any) and interest on this Note to U.S. dollars.
The amount to be received by a Holder of this Note not electing to receive
payments in such Specified Currency will be based on a bid quotation in New York
City received by the Exchange Rate Agent at approximately 11:00 A.M. New York
City time on the second Business Day preceding the applicable payment date from
a recognized foreign exchange dealer (which may be the Exchange Rate Agent) for
the purchase by the quoting dealer of the Specified Currency for U.S. dollars
for settlement on such payment date in the aggregate amount of the U.S. dollars
payable to all Holders of Notes receiving payment in U.S. dollars and at which
the dealer commits to execute a contract. If such bid quotation is not
available, payments will be made in the Specified Currency. All currency
exchange costs will be borne pro rata by the Holders by deductions from such
payments in U.S. dollars.

         As used herein, "Business Day" means with respect to any Note, any day,
other than a Saturday or Sunday, that is neither (a) a legal holiday nor (b) a
day on which banking institutions are authorized or required by law, regulation
or executive order to close in New York City; provided, however, that for Notes
denominated in a Specified Currency other than United States dollars that day is
also not a day on which commercial banking institutions are authorized or
required by law, regulation or executive order to close in the Principal
Financial Center of the country issuing the Specified Currency (or for Notes
denominated in euros, that day is also a day on which the Trans-European
Automated Real-time Gross Settlement Express Transfer System, commonly referred
to as "TARGET," is operating); provided, further, that with respect to a LIBOR
Note, the day must also be a London Business Day. "London Business Day" means
any day on which commercial banks are open for business (including for dealings
in deposits in the relevant Index Currency) in London. "Principal Financial
Center" means, as applicable, the capital city of the country issuing the
Specified Currency; or the capital city of the country to which the Index
Currency relates; provided, however, that the Principal Financial Center will be
New York City for United States dollars, Sydney and Melbourne (the latter solely
in the case of the Index Currency) for Australian dollars, Toronto for Canadian
dollars, Brussels for euros, Johannesburg for South African rand and Zurich for
Swiss francs.

         If this Note is denominated in a Specified Currency other than U.S.
dollars, the Holder of this Note may elect to receive payment of the principal
of and interest on this Note in the Specified Currency by transmitting a written
request for such payment to the Trustee at its corporate trust office in New
York City on or prior to the Regular Record Date or at least 16 calendar days
prior to the Maturity Date, as the case may be. Such request may be in writing
(mailed or hand

                                      B-5
<PAGE>

delivered) or may be by cable, telex or other form of facsimile transmission.
The Holder of this Note need not file a separate election for each such payment.
Such election, once properly made, will remain in effect until this Note is
transferred or until changed by written notice to the Trustee, but written
notice of any such change must be received by the Trustee on or prior to the
Regular Record Date or at least 16 calendar days prior to the Maturity Date, as
the case may be.

         In order for the Holder of this Note to receive payments by wire
transfer, such Holder shall designate an appropriate account (being either the
Holder's Overseas Account or the Holder's U.S. Account, as the case may be).
Such designation shall be made by filing the appropriate information with the
Trustee at its corporate trust office in New York City on or prior to the
Regular Record Date for an Interest Payment Date or at least 16 calendar days
prior to the Maturity Date, except as provided on the face hereof. The Trustee
will, subject to applicable laws and regulations (in the case of a Specified
Currency other than U.S. dollars), and until it receives notice to the contrary
or until this Note is transferred, make such payment and all succeeding payments
to such Holders by wire transfer to the designated Holder's Overseas Account or
Holder's U.S. Account, as the case may be. The Company will pay any
administrative costs imposed by banks in connection with making wire transfer of
payments, but any tax, assessment, governmental or other charge imposed upon
such payments will be borne by the Holder of this Note and deducted therefrom.

         If the Specified Currency other than U.S. dollars is not available for
the payment of principal or interest with respect to this Note due to the
imposition of exchange controls or other circumstances beyond the control of the
Company, the Company will be entitled to satisfy its obligations to the Holder
of this Note by making such payment in U.S. dollars on the basis of the Market
Exchange Rate (defined as the noon dollar buying rate in New York City for cable
transfers for such Specified Currency, as certified for customs purposes (or, if
not so certified, as otherwise determined) by the Federal Reserve Bank of New
York) as of the second Business Day prior to payment or, if the Market Exchange
Rate is not then available, on the basis of the most recently available Market
Exchange Rate, or as otherwise specified in the terms of this Note. The Market
Exchange Rate determined as provided above by the Exchange Rate Agent and
certified by the Company to the Trustee shall be conclusive absent manifest
error. Any payment made in U.S. dollars under those circumstances where the
required payment is in a Specified Currency other than U.S. dollars will not
constitute an Event of Default under the Indenture with respect to the Notes. A
good faith determination by the Exchange Rate Agent that the Specified Currency
is unavailable shall be binding upon the Trustee and the Holder of this Note.

         Except as set forth below or on the face hereof, unless this Note is
identified on the face hereof as an Inverse Floating Rate Note or a Floating
Rate/Fixed Rate Note, this Note shall bear interest at the rate determined by
reference to the applicable Base Rate based on the Index Maturity (a) plus or
minus the Spread, if any, and/or (b) multiplied by the Spread Multiplier, if
any, in each case as specified on the face hereof. Commencing on the Initial
Interest Reset Date, the rate at which interest on this Note shall be payable
shall be reset as of each Interest Reset Date specified on the face hereof;
provided, however, that the interest rate in effect for the period, if any, from
the Original Issue Date to the Initial Interest Reset Date shall be the Initial
Interest Rate.

         If this Note is identified on the face hereof as an Inverse Floating
Rate Note, this Note will bear interest at a fixed interest rate minus the rate
determined by reference to the applicable Base Rate (i) plus or minus the
applicable Spread, if any, and/or (ii) multiplied by the applicable Spread
Multiplier, if any; provided, however, that interest on an Inverse Floating Rate
Note will not be less than zero. Commencing on the first Interest Reset Date,
the rate at which interest on this Note is payable will be reset as of each
Interest Reset Date; provided, further, that the interest rate in effect for the
period, if any, from the Original Issue Date to the first Interest Reset Date
will be the Initial Interest Rate.

         If this Note is identified on the face hereof as a Floating Rate/Fixed
Rate Note, this Note will bear interest from the Original Issue Date to the
first Interest Reset Date for such Note at the Initial Interest Rate set forth
on the face hereof and thereafter the rate of interest on such Note will be
reset as of each Interest Reset Date to a rate determined by reference to the
applicable Base Rate (i) plus or minus the applicable Spread, if any, and/or
(ii) multiplied by the applicable Spread Multiplier, if any; provided, however,
that the interest rate in effect commencing on the fixed rate commencement date
specified on the face hereof will be the fixed rate of interest specified on the
face hereof, or if no such fixed rate is specified, the rate of interest
beginning on the fixed rate commencement date shall be the interest rate in
effect on the day immediately preceding the fixed rate commencement date.

         Unless otherwise specified on the face hereof, the rate with respect to
each Base Rate will be determined in

                                      B-6
<PAGE>

accordance with the applicable provisions below. Except as set forth above, the
interest rate in effect on each day shall be (i) if such day is an Interest
Reset Date, the interest rate determined as of the Interest Determination Date
(as hereinafter defined) immediately preceding such Interest Reset Date or (ii)
if such day is not an Interest Reset Date, the interest rate determined as of
the Interest Determination Date immediately preceding the most recent Interest
Reset Date. If any Interest Reset Date would otherwise be a day that is not a
Business Day, such Interest Reset Date shall be postponed to the next succeeding
Business Day, except that if LIBOR is an applicable Base Rate and such Business
Day falls in the next succeeding calendar month, such Interest Reset Date shall
be the immediately preceding Business Day as used herein, "Interest Reset
Period" means the period of time beginning on an Interest Reset Date for this
Note and ending on the calendar day immediately preceding the next succeeding
Interest Reset Date.

         "Interest Determination Date" means, with respect to any Interest Reset
Date, the day the Calculation Agent will refer to when determining the new
interest rate at which a Floating Rate Note will reset, which is applicable as
follows: for Commercial Paper Rate Notes, Federal Funds Rate Notes and Prime
Rate Notes, the Interest Determination Date will be the Business Day prior to
the Interest Reset Date; for LIBOR Notes, the Interest Determination Date will
be the second London Business Day prior to the Interest Reset Date, except that
the Interest Determination Date pertaining to an Interest Reset Date for a LIBOR
Note for which the Index Currency is pounds sterling will be the Interest Reset
Date; for CD Rate Notes and CMT Rate Notes, the Interest Determination Date will
be the second Business Day next preceding the Interest Reset Date; and for
Treasury Rate Notes, the Interest Determination Date will be the day of the week
in which the Interest Reset Date falls on which Treasury bills would normally be
auctioned. Treasury bills are normally sold at auction on Monday of each week,
unless that day is a legal holiday, in which case the auction is normally held
on the following Tuesday, but the auction may be held on the preceding Friday.
If, as the result of a legal holiday, the auction is held on the preceding
Friday, that Friday will be the Interest Determination Date pertaining to the
Interest Reset Date occurring in the next succeeding week. If an auction falls
on a day that is an Interest Reset Date, the Interest Reset Date will be the
next following Business Day.

         Unless otherwise specified on the face hereof, the "Calculation Date,"
where applicable, pertaining to an Interest Determination Date will be the
earlier of (i) the tenth calendar day after such Interest Determination Date,
or, if such day is not a Business Day, the next succeeding Business Day, or (ii)
the Business Day preceding the applicable Interest Payment Date or Stated
Maturity Date or for any principal amount to be redeemed or repaid, the
Redemption Date or Repayment Date, as the case may be.

         "H.15 Daily Update" means the daily update of H.15(519), available
through the world wide web site of the Board of Governors of the Federal Reserve
System at http://www.federalreserve.gov/releases/ h15/ update or any successor
site or publication.

         "H.15(519)" means the Statistical Release H.15(519), Selected Interest
Rates, published by the Board of Governors of the Federal Reserve System, or any
successor publication of the Board of Governors of the Federal Reserve System.

         "Telerate" means Bridge Telerate, Inc., or any successor service.

         CD Rate. If the Base Rate for this Note is specified on the face hereof
as the CD Rate, this Note will bear interest at the interest rate, calculated
with reference to the CD Rate and the Spread and/or Spread Multiplier, if any,
and subject to the Minimum Interest Rate, and the Maximum Interest Rate, if any,
specified on the face hereof. The CD Rate will be, for any Interest
Determination Date, the rate on that date for negotiable U.S. dollar
certificates of deposit having the Index Maturity specified on the face hereof
as published in H.15(519) under the heading "CDs (secondary market)." The
following procedures will apply if the CD Rate cannot be determined as described
above: If the above rate is not published in H.15(519) by 3:00 p.m., New York
City time, on the Calculation Date pertaining to the applicable Interest
Determination Date, the CD Rate will be the rate on that Interest Determination
Date set forth in the H.15 Daily Update, or such other recognized electronic
source used for the purpose of displaying such rate, or any successor site or
publication, which is commonly referred to as the "H.15 Daily Update," for the
Interest Determination Date for negotiable certificates of deposit having the
Index Maturity specified on the face hereof, under the caption "CDs (secondary
market)." If the above rate is not yet published in either H.15(519), the H.15
Daily Update or some other recognized source for the purpose of displaying the
rate, by 3:00 p.m., New York City time, on the Calculation Date, the Calculation
Agent will determine the CD Rate to be the arithmetic mean of the secondary
market offered rates as of 10:00 a.m., New

                                      B-7
<PAGE>

York City time, on that Interest Determination Date of three leading nonbank
dealers in negotiable U.S. dollar certificates of deposit in New York City
selected by the Calculation Agent, after consultation with the Company, for
negotiable certificates of deposit of major United States money center banks of
the highest credit standing in the market for negotiable certificates of deposit
with a remaining maturity closest to the Index Maturity specified on the face
hereof in an amount that is representative for a single transaction in that
market at that time. If the dealers selected by the Calculation Agent are not
quoting as set forth above, the CD Rate for the applicable Interest Reset Period
will be the same as the CD Rate in effect for the immediately preceding Interest
Reset Period (or, if there was no Interest Reset Period, the rate of interest
payable on the CD Rate Notes for which the CD Rate is being determined shall be
the Initial Interest Rate).

         CMT Rate. If the Base Rate for this Note is specified on the face
hereof as the CMT Rate, this Note will bear interest at the interest rate,
calculated with reference to the CMT Rate and the Spread and/or Spread
Multiplier, if any, and subject to the Minimum Interest Rate, and the Maximum
Interest Rate, if any, specified on the face hereof. The CMT Rate shall be
determined in the following manner: if CMT Telerate Page 7051 is specified on
the face hereof, CMT Rate means the percentage equal to the yield for U.S.
Treasury securities at "constant maturity" having the Index Maturity specified
on the face hereof as published in H.15(519) under the caption "Treasury
Constant Maturities", as the yield is displayed on the Telerate on page 7051 (or
any other page as may replace the specified page on that service) ("Telerate
Page 7051"), for the particular Interest Determination Date. The following
paragraphs detail the procedures to be followed in the event that CMT Telerate
Page 7051 is specified on the face hereof, but the foregoing method for
determining CMT Rate is not available.

..    If the rate referred to in the preceding paragraph does not so appear on
     Telerate Page 7051 by 3:30 p.m., New York City time, on the Calculation
     Date for the applicable Interest Determination Date, the CMT Rate will be
     the percentage equal to the yield for U.S. Treasury securities at "constant
     maturity" having the particular Index Maturity and for the particular
     Interest Determination Date as published in H.15(519) under the caption
     "Treasury Constant Maturities".

..    If the rate referred to in the preceding paragraph does not so appear in
     H.15(519) by 3:30 p.m., New York City time, on the Calculation Date for the
     applicable Interest Determination Date, the CMT Rate will be the rate on
     the particular Interest Determination Date for the period of the particular
     Index Maturity as may then be published by either the Federal Reserve
     System Board of Governors or the U.S. Department of the Treasury that the
     Calculation Agent determines to be comparable to the rate which would
     otherwise have been published in H.15(519).

..    If the rate referred to in the preceding paragraph is not so published by
     3:30 p.m., New York City time, on the Calculation Date for the applicable
     Interest Determination Date, the CMT Rate will be the rate on the
     particular Interest Determination Date calculated by the Calculation Agent
     as a yield to maturity based on the arithmetic mean of the secondary market
     bid prices at approximately 3:30 p.m., New York City time, on that Interest
     Determination Date of three leading primary U.S. government securities
     dealers in New York City (each, a "Reference Dealer"), selected by the
     Calculation Agent from five Reference Dealers selected by the Calculation
     Agent and eliminating the highest quotation, or, in the event of equality,
     one of the highest, and the lowest quotation or, in the event of equality,
     one of the lowest, for U.S. Treasury securities with an original maturity
     equal to the particular Index Maturity, a remaining term to maturity no
     more than 1 year shorter than that Index Maturity and in a principal amount
     that is representative for a single transaction in the securities in that
     market at that time.

..    If fewer than five but more than two of the prices referred to in the
     preceding paragraph are provided as requested, the CMT Rate will be the
     rate on the particular Interest Determination Date calculated by the
     Calculation Agent based on the arithmetic mean of the bid prices obtained
     and neither the highest nor the lowest of the quotations shall be
     eliminated.

..    If fewer than three of the prices referred to two paragraphs above are
     provided as requested, the CMT Rate will be the rate on the particular
     Interest Determination Date calculated by the Calculation Agent as a yield
     to maturity based on the arithmetic mean of the secondary market bid prices
     as of approximately 3:30 p.m., New York City time, on that Interest
     Determination Date of three Reference Dealers selected by the Calculation
     Agent from five Reference Dealers selected by the Calculation Agent and
     eliminating the highest quotation or, in the event of equality, one of the
     highest and the lowest quotation or, in the event of equality, one of the
     lowest, for U.S. Treasury securities with an original maturity greater than
     the particular Index Maturity, a remaining term to maturity closest to that
     Index

                                      B-8
<PAGE>

     Maturity and in a principal amount that is representative for a single
     transaction in the securities in that market at that time.

..    If fewer than five but more than two prices referred to in the preceding
     paragraph are provided as requested, the CMT Rate will be the rate on the
     particular Interest Determination Date calculated by the Calculation Agent
     based on the arithmetic mean of the bid prices obtained and neither the
     highest nor the lowest of the quotations will be eliminated.

..    If fewer than three prices referred to two paragraphs above are provided as
     requested, the CMT Rate for the applicable Interest Reset Date will be the
     same as the CMT Rate for the immediately preceding Interest Reset Period
     (or, if there was no Interest Reset Period, the rate of interest payable on
     the CMT Rate Notes for which the CMT Rate is being determined shall be the
     Initial Interest Rate).

         If CMT Telerate Page 7052 is specified on the face hereof, CMT Rate
means the percentage equal to the one-week or one-month, as specified on the
face hereof, average yield for U.S. Treasury securities at "constant maturity"
having the Index Maturity specified on the face hereof as published in H.15(519)
opposite the caption "Treasury Constant Maturities", as the yield is displayed
on the Telerate on page 7052 (or any other page as may replace the specified
page on that service) ("Telerate Page 7052"), for the week or month, as
applicable, ended immediately preceding the week or month, as applicable, in
which the particular Interest Determination Date falls. The following paragraphs
detail the procedures to be followed in the event that CMT Telerate Page 7052 is
specified on the face hereof, but the foregoing method for determining CMT Rate
is not available.

..    If the rate referred to in the preceding paragraph does not so appear on
     Telerate Page 7052 by 3:30 p.m., New York City time, on the Calculation
     Date for the applicable Interest Determination Date, the CMT Rate will be
     the percentage equal to the one-week or one-month, as specified on the face
     hereof, average yield for U.S. Treasury securities at "constant maturity"
     having the particular Index Maturity and for the week or month, as
     applicable, preceding the particular Interest Determination Date as
     published in H.15(519) opposite the caption "Treasury Constant Maturities."

..    If the rate referred to in the preceding paragraph does not so appear in
     H.15(519) by 3:30 p.m., New York City time, on the Calculation Date for the
     applicable Interest Determination Date, the CMT Rate will be the one-week
     or one-month, as specified on the face hereof, average yield for U.S.
     Treasury securities at "constant maturity" having the particular Index
     Maturity as otherwise announced by the Federal Reserve Bank of New York for
     the week or month, as applicable, ended immediately preceding the week or
     month, as applicable, in which the particular Interest Determination Date
     falls.

..    If the rate referred to in the preceding paragraph is not so published by
     3:30 p.m., New York City time, on the Calculation Date for the applicable
     Interest Determination Date, the CMT Rate will be the rate on the
     particular Interest Determination Date calculated by the Calculation Agent
     as a yield to maturity based on the arithmetic mean of the secondary market
     bid prices at approximately 3:30 p.m., New York City time, on that Interest
     Determination Date of three Reference Dealers selected by the Calculation
     Agent from five Reference Dealers selected by the Calculation Agent and
     eliminating the highest quotation, or, in the event of equality, one of the
     highest, and the lowest quotation or, in the event of equality, one of the
     lowest, for U.S. Treasury securities with an original maturity equal to the
     particular Index Maturity, a remaining term to maturity no more than 1 year
     shorter than that Index Maturity and in a principal amount that is
     representative for a single transaction in the securities in that market at
     that time.

..    If fewer than five but more than two of the prices referred to in the
     preceding paragraph are provided as requested, the CMT Rate will be the
     rate on the particular Interest Determination Date calculated by the
     Calculation Agent based on the arithmetic mean of the bid prices obtained
     and neither the highest nor the lowest of the quotations shall be
     eliminated.

..    If fewer than three prices referred to two paragraphs above are provided as
     requested, the CMT Rate will be the rate on the particular Interest
     Determination Date calculated by the Calculation Agent as a yield to
     maturity based on the arithmetic mean of the secondary market bid prices as
     of approximately 3:30 p.m., New York City time, on that Interest
     Determination Date of three Reference Dealers selected by the Calculation
     Agent from five Reference

                                      B-9
<PAGE>

     Dealers selected by the Calculation Agent and eliminating the highest
     quotation or, in the event of equality, one of the highest and the lowest
     quotation or, in the event of equality, one of the lowest, for U.S.
     Treasury securities with an original maturity greater than the particular
     Index Maturity, a remaining term to maturity closest to that Index Maturity
     and in a principal amount that is representative for a single transaction
     in the securities in that market at the time.

..    If fewer than five but more than two prices referred to in the preceding
     paragraph are provided as requested, the CMT Rate will be the rate on the
     particular Interest Determination Date calculated by the Calculation Agent
     based on the arithmetic mean of the bid prices obtained and neither the
     highest or the lowest of the quotations will be eliminated.

..    If fewer than three prices referred to two paragraphs above are provided as
     requested, the CMT Rate for the applicable Interest Reset Date will be the
     same as the CMT Rate for the immediately preceding Interest Reset Period
     (or, if there was no Interest Reset Period, the rate of interest payable on
     the CMT Rate Notes for which the CMT Rate is being determined shall be the
     Initial Interest Rate).

         For purposes of the above calculations (whether CMT Telerate Page 7051
or CMT Telerate Page 7052 is specified on the face hereof), if two U.S. Treasury
securities with an original maturity greater than the Index Maturity specified
on the face hereof have remaining terms to maturity equally close to the
particular Index Maturity, the quotes for the U.S. Treasury security with the
shorter remaining term to maturity will be used.

         If no CMT Telerate Page is specified on the face hereof, CMT Telerate
Page 7052, for the most recent week, shall be deemed specified.

         Commercial Paper Rate. If the Base Rate for this Note is specified on
the face hereof as the Commercial Paper Rate, this Note will bear interest at
the interest rate, calculated with reference to the Commercial Paper Rate and
the Spread and/or Spread Multiplier, if any, and subject to the Minimum Interest
Rate and the Maximum Interest Rate, if any, specified on the face hereof. The
Commercial Paper Rate shall be determined to be for any Interest Determination
Date, the Money Market Yield, calculated as described below, of the rate on that
date for commercial paper having the Index Maturity specified on the face
hereof, as that rate is published in H.15(519), under the heading "Commercial
Paper - Nonfinancial."

         The following procedures will apply if the Commercial Paper Rate cannot
be determined as described above: If the above rate is not published by 3:00
p.m., New York City time, on the Calculation Date pertaining to the applicable
Interest Determination Date, then the Commercial Paper Rate will be the Money
Market Yield of the rate on that Interest Determination Date for commercial
paper of the Index Maturity specified on the face hereof as published in H.15
Daily Update or some other recognized electronic source for the purpose of
displaying the rate, under the heading "Commercial Paper - Nonfinancial.." If by
3:00 p.m., New York City time, on that Calculation Date the rate is not yet
published in either H.15(519) or the H.15 Daily Update, or some other recognized
electronic source for the purpose of displaying the rate, then the Calculation
Agent will determine the Commercial Paper Rate to be the Money Market Yield of
the arithmetic mean of the offered rates as of 11:00 a.m., New York City time,
on that Interest Determination Date of three leading dealers of U.S. dollar
commercial paper in New York City selected by the Calculation Agent, after
consultation with the Company, for commercial paper of the Index Maturity
specified on the face hereof, placed for an industrial issuer whose bond rating
is "AA," or the equivalent, from a nationally recognized statistical rating
organization. If the dealers selected by the Calculation Agent are not quoting
as mentioned above, the Commercial Paper Rate for the applicable Interest Reset
Period will be the same as the Commercial Paper Rate in effect for the
immediately preceding Interest Reset Period (or, if there was no Interest Reset
Period, the rate of interest payable on the Commercial Paper Rate Notes for
which the Commercial Paper Rate is being determined shall be the Initial
Interest Rate).

         The "Money Market Yield" will be a yield calculated in accordance with
the following formula:

                  Money Market Yield =  D x 360               x 100
                                        ---------------
                                                 360 - (D x M)
"D" refers to the applicable per year rate for commercial paper quoted on a bank
discount basis and expressed as a decimal; and "M" refers to the actual number
of days in the interest period for which interest is being calculated.

                                     B-10
<PAGE>

         Federal Funds Rate. If the Base Rate for this Note is specified on the
face hereof as the Federal Funds Rate, this Note will bear interest at the
interest rate, calculated with reference to the Federal Funds Rate and the
Spread and/or Spread Multiplier, if any, and subject to the Minimum Interest
Rate and Maximum Interest Rate, if any, specified on the face hereof. The
Federal Funds Rate shall be determined as of the applicable Interest
Determination Date to be the rate on that date for U.S. dollar federal funds as
published in H.15(519) under the heading "Federal Funds (Effective)" as that
rate is displayed on the Telerate on page 120 or any other page as may replace
the applicable page on that service, which is commonly referred to as "Telerate
Page 120."

         The following procedures will apply if the Federal Funds Rate cannot be
determined as described above: If the above rate is not published by 3:00 p.m.,
New York City time, on the Calculation Date pertaining to the Interest
Determination Date, the Federal Funds Rate will be the rate on that Interest
Determination Date as published in the H.15 Daily Update under the heading
"Federal Funds/ Effective Rate," or another recognized electronic source used
for the purpose of displaying that rate, under the caption "Federal Funds
(Effective)." If that rate is not yet published in either H.15(519) or the H.15
Daily Update or some other recognized electronic source for the purpose of
displaying the rate, by 3:00 p.m., New York City time, on the Calculation Date
pertaining to the Interest Determination Date then the Calculation Agent will
determine the Federal Funds Rate to be the arithmetic mean of the rates for the
last transaction in overnight U.S. dollar federal funds, as of 9:00 a.m., New
York City time, on the Interest Determination Date, arranged by each of three
leading brokers of federal funds transactions in New York City selected by the
Calculation Agent. If the brokers selected by the Calculation Agent are not
quoting as mentioned above, the Federal Funds Rate for the applicable Interest
Reset Period will be the same as the Federal Funds Rate in effect for the
immediately preceding Interest Reset Period (or, if there was no Interest Reset
Period, the rate of interest payable on the Federal Funds Rate Notes for which
the Federal Funds Rate is being determined shall be the Initial Interest Rate).

         LIBOR. If the Base Rate for this Note is specified on the face hereof
as LIBOR, this Note will bear interest at the interest rate, calculated with
reference to LIBOR and the Spread and/or Spread Multiplier, if any, and subject
to the Minimum Interest Rate and the Maximum Interest Rate, if any, specified on
the face hereof. LIBOR shall be determined by the Calculation Agent as of the
applicable Interest Determination Date (a LIBOR Interest Determination Date) in
accordance with the following provisions:

         (a)  if "LIBOR Reuters" is specified on the face hereof, the arithmetic
              mean of the offered rates for deposits in the Index Currency
              having the Index Maturity designated on the face hereof,
              commencing on the second London Business Day immediately following
              that Interest Determination Date, that appear on the Designated
              LIBOR Page as of 11:00 a.m., London time, on that Interest
              Determination Date, if at least two offered rates appear on the
              Designated LIBOR Page, except that if the specified Designated
              LIBOR Page, by its terms provides only for a single rate, that
              single rate will be used; or

         (b)  if "LIBOR Telerate" is specified in on the face hereof, the rate
              for deposits in the Index Currency having the Index Maturity
              designated on the face hereof, commencing on the second London
              Business Day immediately following that Interest Determination
              Date or, if pounds sterling is the Index Currency, commencing on
              that Interest Determination Date, that appears on the Designated
              LIBOR Page at approximately 11:00 a.m., London time, on that
              Interest Determination Date.


         If fewer than the required number of offered rates appear, then the
Calculation Agent will request the principal London offices of each of four
major reference banks in the London interbank market, as selected by the
Calculation Agent after consultation with the Company, to provide the
Calculation Agent with its offered quotation for deposits in the Index Currency
for the period of the Index Maturity specified on the face hereof commencing on
the second London Business Day immediately following the Interest Determination
Date or, if pounds sterling is the Index Currency, commencing on that Interest
Determination Date, to prime banks in the London interbank market at
approximately 11:00 a.m., London time, on that Interest Determination Date and
in a principal amount of not less than $1,000,000 (or the equivalent in the
Index Currency, if the Index Currency is not the U.S. dollar) that is
representative of a single transaction in the Index Currency in the market at
that time. If at least two quotations are provided, LIBOR determined on that
Interest Determination Date will be the arithmetic mean of those quotations. If
fewer than two quotations are provided, LIBOR will be determined on that
Interest Determination Date as the arithmetic mean of the rates quoted at
approximately 11:00 a.m., London time, or some other time specified on the face
hereof, in the applicable Principal

                                     B-11
<PAGE>

Financial Center for the country of the Index Currency on the Interest
Determination Date, by three major banks in that Principal Financial Center
selected by the Calculation Agent, after consultation with the Company, for
loans in the Index Currency to leading European banks, having the Index Maturity
specified on the face hereof and in a principal amount of not less than
$1,000,000 (or the equivalent in the Index Currency, if the Index Currency is
not the U.S. dollar) that is representative of a single transaction in that
Index Currency in the market at that time. If the banks so selected by the
Calculation Agent are not quoting as mentioned in the previous sentence, LIBOR
for the applicable Interest Reset Period will be the same as LIBOR in effect for
the immediately preceding Interest Reset Period (or, if there was no Interest
Reset Period, the rate of interest payable on the LIBOR Notes for which LIBOR is
being determined shall be the Initial Interest Rate).

         If neither LIBOR Reuters nor LIBOR Telerate is specified on the face
hereof, LIBOR for the applicable Index Currency will be determined as if LIBOR
Telerate were specified, and, if the U.S. dollar is the Index Currency, as if
Page 3750, had been specified.

         "Designated LIBOR Page" means either: (i) if "LIBOR Reuters" is
designated on the face hereof, the display on the Reuters Monitor Money Rates
Service for the purpose of displaying the London interbank rates of major banks
for the applicable Index Currency or its designated successor; or (ii) if "LIBOR
Telerate" is designated on the face hereof, the display on the Telerate page
specified on the face hereof, or any other page as may replace that page on that
service, for the purpose of displaying the London interbank rates of major banks
for the applicable Index Currency.

         Prime Rate. If the Base Rate for this Note is specified on the face
hereof as the Prime Rate, this Note will bear interest at the interest rate,
calculated with reference to the Prime Rate and the Spread and/or Spread
Multiplier, if any, and subject to the Minimum Interest Rate and the Maximum
Interest Rate, if any, specified on the face hereof. The Prime Rate shall be
determined as of the applicable Interest Determination Date to be the rate set
forth on that date in H.15(519) under the heading "Bank Prime Loan."

         The following procedures will apply if the Prime Rate cannot be
determined as described above: If the above rate is not published prior to 3:00
p.m., New York City time, on the Calculation Date pertaining to the applicable
Interest Determination Date, then the Prime Rate will be the rate on that
Interest Determination Date as published in H.15 Daily Update, or such other
recognized electronic source used for the purpose of displaying such rate, under
the heading "Bank Prime Loan." If the rate is not published prior to 3:00 p.m.,
New York City time, on the Calculation Date in either H.15(519) or the H.15
Daily Update, or some other recognized electronic source for the purpose of
displaying the rate, then the Calculation Agent will determine the Prime Rate to
be the arithmetic mean of the rates of interest publicly announced by each bank
that appears on the Reuters Screen USPRIME 1 Page as that bank's prime rate or
base lending rate as in effect as of 11:00 a.m., New York City time, on that
Interest Determination Date as quoted on the Reuters Screen USPRIME 1 Page on
the Interest Determination Date. If fewer than four rates appear on the Reuters
Screen USPRIME 1 Page for that Interest Determination Date, the Calculation
Agent will determine the Prime Rate to be the arithmetic mean of the prime rates
or base lending rates quoted on the basis of the actual number of days in the
year divided by 360 as of the close of business on that Interest Determination
Date by three major banks in New York City selected by the Calculation Agent,
after consultation with the Company, from which quotations are requested. If
fewer than two quotations are provided, the Prime Rate shall be calculated by
the Calculation Agent and shall be determined as the arithmetic mean on the
basis of the prime rates in New York City by the appropriate number of
substitute banks or trust companies organized and doing business under the laws
of the United States, or any State thereof, in each case having total equity
capital of at least U.S. $500 million and being subject to supervision or
examination by federal or state authority, selected by the Calculation Agent to
quote the rate or rates. If the banks or trust companies selected by the
Calculation Agent are not quoting as mentioned above, the Prime Rate for the
applicable Interest Reset Period will be the same as the Prime Rate in effect
for the immediately preceding Interest Reset Period (or, if there was no
Interest Reset Period, the rate of interest payable on the Prime Rate Notes for
which the Prime Rate is being determined shall be the Initial Interest Rate).

         "Reuters Screen US PRIME 1 Page" means the display designated as Page
"US PRIME 1" on the Reuters Monitor Money Rates Service (or such other page as
may replace the US PRIME 1 Page on such service for the purpose of displaying
prime rates or base lending rates of major United States banks).


         Treasury Rate. If the Base Rate for this Note is specified on the face
hereof as the Treasury Rate, this Note will bear interest at the interest rate,
calculated with reference to the Treasury Rate and the Spread and/or Spread
Multiplier, if

                                     B-12
<PAGE>

any, and subject to the Minimum Interest Rate and the Maximum Interest Rate, if
any, specified on the face hereof. The Treasury Rate shall be determined as of
the applicable Interest Determination Date to be the rate from the auction held
on the applicable Interest Determination Date of direct obligations of the
United States, which are commonly referred to as "Treasury Bills," having the
Index Maturity specified on the face hereof as that rate appears under the
caption "Investment Rate" on the display on the Telerate on page 56 or any other
page as may replace page 56 on that service, referred to as "Telerate Page 56,"
or page 57 or any other page as may replace page 57 on that service, referred to
as "Telerate Page 57."

         The following procedures will apply if the Treasury Rate cannot be
determined as described above: If the rate described above is not published by
3:00 p.m., New York City time, on the Calculation Date pertaining to the
applicable Interest Determination Date, the Treasury Rate for the Interest
Determination Date will be the yield to maturity (expressed as a bond
equivalent, on the basis of a year of 365 or 366 days, as applicable and applied
on a daily basis) of the rate of the applicable Treasury Bills, published in the
H.15 Daily Update, or any other recognized electronic source used for the
purpose of displaying the rate, under the caption "U.S. Government
Securities/Treasury Bills/Auction High" on the Interest Determination Date, or
if not so published by 3:00 p.m., New York City time on the Calculation Date,
the yield to maturity (expressed as a bond equivalent, on the basis of a year of
365 or 366 days, as applicable and applied on a daily basis) of the auction rate
of the applicable Treasury Bills as otherwise announced by the United States
Department of the Treasury. In the event that the results of the auction of
Treasury Bills having the Index Maturity designated on the face hereof are not
published or reported as provided above by 3:00 p.m., New York City time, on the
Calculation Date or if no auction is held on the Interest Determination Date,
then the Treasury Rate will be the yield to maturity (expressed as a bond
equivalent, on the basis of a year of 365 or 366 days, as applicable and applied
on a daily basis) of the rate on the Interest Determination Date of Treasury
Bills having the Index Maturity specified on the face hereof published in
H.15(519), or such other recognized electronic source used for the purpose of
displaying that rate, under the caption "U.S. Government Securities/ Treasury
Bills/ Secondary Market." If the rate referred to in the immediately preceding
sentence is not so published by 3:00 p.m., New York City time, on the
Calculation Date pertaining to the applicable Interest Determination Date, the
Treasury Rate shall be the yield to maturity (expressed as a bond equivalent, on
the basis of a year of 365 or 366 days, as applicable and applied on a daily
basis) of the rate on the Interest Determination Date of such Treasury Bills as
published in the H.15 Daily Update, or other recognized electronic source used
for the purpose of displaying that rate, under the caption "U.S. Government
Securities/Treasury Bills/Secondary Market." If the rate referred to above is
not published in H.15(519), H.15 Daily Update, or another recognized electronic
source, by 3:00 p.m., New York City time, on the Calculation Date pertaining to
the applicable Interest Determination Date, the Treasury Rate shall be
calculated by the Calculation Agent and shall be a yield to maturity (expressed
as a bond equivalent, on the basis of a year of 365 or 366 days, as applicable
and applied on a daily basis) calculated using the arithmetic mean of the
secondary market bid rates, as of approximately 3:30 p.m., New York City time,
on the applicable Interest Determination Date, of three primary United States
government securities dealers, selected by the Calculation Agent, after
consultation with the Company, for the issue of Treasury Bills with a remaining
maturity closest to the Index Maturity specified in on the face hereof. If the
dealers selected by the Calculation Agent are not quoting as mentioned in the
immediately preceding sentence, the Treasury Rate for the applicable Interest
Reset Period will be the same as the Treasury Rate in effect for the immediately
preceding Interest Reset Period (or, if there was no Interest Reset Period, the
rate of interest payable on the Treasury Rate Notes for which the Treasury Rate
is being determined shall be the Initial Interest Rate).

         Notwithstanding the foregoing, the interest rate hereon shall not be
greater than the Maximum Interest Rate, if any, or less than the Minimum
Interest Rate, if any, specified on the face hereof. The interest rate on this
Note will in no event be higher than the maximum rate permitted by New York law,
as the same may be modified by United States law of general application.

         The Calculation Agent shall calculate the interest rate hereon in
accordance with the foregoing on or before each Calculation Date. At the request
of the Holder hereof, the Calculation Agent will provide to the Holder hereof
the interest rate hereon then in effect and, if determined, the interest rate
which will become effective as a result of a determination made for the next
succeeding Interest Reset Date.

         With respect to this Note, accrued interest shall be calculated by
multiplying the principal amount of this Note by an accrued interest factor.
Such accrued interest factor will be computed by adding the interest factors
calculated for each day in the period for which interest is being paid. Unless
otherwise specified on the face hereof, the interest factor for each day is
computed by dividing the interest rate applicable to that day: (i) by 360, in
the case of CD Rate Notes, Commercial Paper Rate Notes, Federal Funds Rate
Notes, LIBOR Notes (except for LIBOR Notes denominated in

                                     B-13
<PAGE>

pounds sterling) and Prime Rate Notes; (ii) by 365, in the case of LIBOR Notes
denominated in pounds sterling; or (iii) by the actual number of days in the
year, in the case of Treasury Rate Notes or CMT Rate Notes. All percentages used
in or resulting from any calculation of the rate of interest on this Note will
be rounded, if necessary, to the nearest one hundred-thousandth of a percentage
point, with five one-millionths of a percentage point rounded upward, and all
dollar amounts used in or resulting from such calculation on this Note will be
rounded to the nearest cent, with one-half cent rounded upward, or in the case
of a foreign currency, to the nearest unit, with one-half unit being rounded
upward. The interest rate in effect on any Interest Reset Date will be the
applicable rate as reset on such date. The interest rate applicable to any other
day is the interest rate from the immediately preceding Interest Reset Date (or,
if none, the Initial Interest Rate).

         If so provided on the face of this Note, this Note may be redeemed by
the Company in accordance with the Redemption Terms set forth on the face
hereof. If no Redemption Terms are set forth on the face hereof, this Note may
not be redeemed prior to the Maturity Date. On and after the initial Redemption
Date specified in the Redemption Terms, if any, this Note may be redeemed at any
time in whole or in part (provided that any remaining principal amount of this
Note shall be equal to an authorized denomination) at the option of the Company,
at the applicable Redemption Price specified in the Redemption Terms, together
with interest thereon payable to the Redemption Date, on notice given not more
than 60 nor less than 20 calendar days prior to the Redemption Date. In the
event of redemption of this Note in part only, a new Note for the unredeemed
portion hereof shall be issued in the name of the Holder hereof upon the
surrender hereof.

         Notwithstanding the foregoing, the Company may not, prior to the
Limitation Date specified on the face hereof, if any, redeem this Note as
contemplated by the next preceding paragraph as a part of, or in anticipation
of, any refunding operation by the application, directly or indirectly, of
monies borrowed having an interest cost to the Company (calculated in accordance
with generally accepted financial practice) of less than the Refunding Rate
specified on the face hereof, if any.

         The Notes will not have a sinking fund.

         If Repayment Terms are indicated on the face of this Note, the Company
may be required to repurchase this Note at the option of the Holder, in whole or
in part, on the Repayment Date(s) and at the applicable Repayment Price(s)
specified in the Repayment Terms, plus accrued interest, if any, to the
applicable Repayment Date. On or before the applicable Repayment Date, the
Company shall deposit with the Trustee money sufficient to pay the applicable
Repayment Price and any interest accrued on the portion of this Note to be
tendered for repayment. On and after such Repayment Date, interest will cease to
accrue on this Note or any portion hereof tendered for repayment.

         The repayment option may be exercised by the Holder of this Note for
less than the entire principal amount hereof, but in that event, the principal
amount hereof remaining outstanding after repayment must be in an authorized
denomination. In the event of repurchase of this Note in part only, a new Note
or Notes of this series and of like tenor for the unpurchased portion hereof
will be issued in the name of the Holder hereof upon the cancellation hereof.

         In order for this Note to be repaid, the Trustee must receive at least
30 calendar days but not more than 60 calendar days prior to the Repayment Date
(i) this Note with the form entitled "Option to Elect Repayment" attached to
this Note duly completed or (ii) a facsimile transmission or a letter from a
member of a national securities exchange or the National Association of
Securities Dealers, Inc. or a commercial bank or trust company in the United
States setting forth the name of the Holder of this Note, the principal amount
of this Note, the principal amount of this Note to be repaid, the registered
number or a description of the tenor and terms of this Note, a statement that
the option to elect repayment is being exercised thereby, and a guarantee that
this Note to be repaid, together with the duly completed form entitled "Option
to Elect Repayment" attached to this Security, will be received by the Trustee
not later than the fifth Business Day after the date of such facsimile
transmission or letter; however, such facsimile transmission or letter shall
only be effective if this Note and duly completed form are received by the
Trustee by such fifth Business Day. Such notice, once given, will be irrevocable
unless waived by the Company.

         Unless otherwise indicated on the face hereof, this Note will not be
subject to repayment at the option of the Holder.

                                     B-14
<PAGE>

         If an Event of Default with respect to the Notes shall occur and be
continuing, the principal of the Notes may be declared due and payable in the
manner and with the effect provided in the Indenture.

         The Indenture permits, with certain exceptions as therein provided, the
amendment thereof and the modification of the rights and obligations of the
Company and the rights of the Holders of the Securities of each series to be
affected under the Indenture at any time by the Company and the Trustee with the
consent of the Holders of a majority in principal amount of the Securities at
the time Outstanding of each series to be affected. The Indenture also contains
provisions permitting the Holders of specified percentages in principal amount
of the Securities of each series at the time Outstanding, on behalf of the
Holders of all Securities of such series, to waive certain past defaults under
the Indenture and their consequences. Any such consent or waiver by the Holder
of this Note shall be conclusive and binding upon such Holder and upon all
future Holders of this Note and of any Note issued upon the registration of
transfer hereof or in exchange herefor or in lieu hereof, whether or not
notation of such consent or waiver is made upon this Note.

         As provided in and subject to the provisions of the Indenture, the
Holder of this Note shall not have the right to institute any proceeding with
respect to the Indenture or for the appointment of a receiver or trustee or for
any other remedy thereunder, unless such Holder shall have previously given the
Trustee written notice of a continuing Event of Default with respect to the
Notes, the Holders of not less than a majority in principal amount of the Notes
at the time Outstanding shall have made written request to the Trustee to
institute proceedings in respect of such Event of Default as Trustee and offered
the Trustee reasonable indemnity, and the Trustee shall not have received from
the Holders of a majority in principal amount of the Notes at the time
Outstanding a direction inconsistent with such request, and shall have failed to
institute any such proceeding for 60 days after receipt of such notice, request
and offer of indemnity. The foregoing shall not apply to any suit instituted by
the Holder of this Note for the enforcement of any payment of principal hereof
or premium, if any, or interest hereon on or after the respective due dates
expressed or provided for herein.

         No reference herein to the Indenture and no provision of this Note or
of the Indenture shall alter or impair the obligation of the Company, which is
absolute and unconditional, to pay the principal of (and premium, if any) and
interest on this Note at the times, place and rate, in the coin or currency, and
to the manner, herein prescribed.

         As provided in the Indenture and subject to certain limitations therein
set forth, the transfer of this Note is registrable in the Security Register,
upon surrender of this Note, for registration of transfer at the office or
agency of the Company in any place where the principal of and any premium and
interest on this Note are payable, duly endorsed by, or accompanied by a written
instrument of transfer in form satisfactory to the Company and the Security
Registrar duly executed by, the Holder hereof or his attorney duly authorized in
writing, and thereupon one or more new Notes having the same Stated Maturity
Date and Original Issue Date, of authorized denominations and of like tenor and
for the same aggregate principal amount in the same Specified Currency, will be
issued to the designated transferee or transferees.

         The Notes are issuable only in registered form without coupons and
unless otherwise specified on the face hereof, in denominations of U.S. $1,000
and in integral multiples of U.S. $1,000 in excess thereof or the approximate
equivalent of U.S. $1,000 in the Specified Currency in which this Note is
denominated (if not U.S. dollars) at the Market Exchange Rate on the Business
Day immediately preceding the trade date for the original issuance of each
tranche of Notes, as determined by the Exchange Rate Agent. As provided in the
Indenture and subject to certain limitations therein set forth, Notes are
exchangeable for a like aggregate principal amount of Notes having the same
Specified Currency, Stated Maturity Date and Original Issue Date of any
authorized denominations as requested by the Holder surrendering the same, upon
surrender of the Note or Notes to be exchanged at the office or agency of the
Company.

         No service charge shall be made for any such registration of transfer
or exchange, but the Company may require payment of a sum sufficient to cover
any tax or other governmental charge payable in connection therewith.

         Prior to due presentment of this Note for registration of transfer, the
Company, the Trustee and any agent of the Company, or the Trustee may treat the
Person in whose name this Note is registered as the absolute owner hereof for
all purposes, whether or not this Note be overdue, and neither the Company, the
Trustee nor any such agent shall be affected by notice to the contrary.

         Reference in this Note to "U.S.$" or "U.S. dollars", is to the currency
of the United States of America. Reference in this Note to the "Specified
Currency" is to the Specified Currency shown on the face hereof. All terms used
in this Note and not otherwise defined herein which are defined in the Indenture
shall have the meanings assigned to them

                                     B-15
<PAGE>

in the Indenture.

         This Note shall be governed by and construed in accordance with the
laws of the State of New York.

                                     B-16
<PAGE>

                                 ABBREVIATIONS


         The following abbreviations, when used in the inscription above in this
instrument shall be construed as though they were written out in full according
to applicable laws or regulations:

TEN COM -  as tenants in common          UNIF GIFT MIN ACT _____Custodian  _____

TEN ENT -  as tenants by the entireties                    (Cust)        (Minor)

JT TEN  -  as joint tenants with right of Under Uniform Gifts to Minors Act
           survivorship and not as tenants in                            (State)
           common

Additional abbreviations may also be used though not in the above list.

                                     B-17
<PAGE>

                           [FORM OF TRANSFER NOTICE]

          FOR VALUE RECEIVED the undersigned registered holder hereby sell(s),
assign(s) and transfer(s) unto

  ______________________________________________________________________________
Insert Taxpayer Identification No.
----------------------------------

  ______________________________________________________________________________
Please print or typewrite name and address including zip code of assignee


the within Note and all rights thereunder, hereby irrevocably constituting and
appointing

____________________________________________________________

attorney to transfer said Note on the books of the Company with full power of
substitution in the premises.


Dated:______                      _______________________________
                                             NOTICE:   The signature to this
                                                       assignment must
                                                       correspond with the name
                                                       as written elsewhere upon
                                                       the within instrument in
                                                       every particular, without
                                                       alteration or enlargement
                                                       or any change whatever.

                                     B-18
<PAGE>

                           OPTION TO ELECT REPAYMENT

         The undersigned hereby irrevocably requests and instructs the Company
to repay the within Note (or portion thereof specified below) pursuant to its
terms at the applicable Repayment Price set forth on the face thereof, together
with the interest to the Repayment Date, to the undersigned at

________________________________________________________________________________

________________________________________________________________________________

________________________________________________________________________________

        (Please print or typewrite name and address of the undersigned)


         If less than the entire principal amount of the within Note is to be
repaid, specify the portion thereof which the Holder elects to have repaid:
______________; and specify the denomination or denominations (which shall not
be less than the minimum authorized denomination) of the Notes to be issued to
the Holder for the portion of the within Note not being repaid (in the absence
of any such specification, one such Note will be issued for the portion not
being repaid): _________________.


Dated: __________________________           _______________________________

NOTE: The signature on this Option to Elect Repayment must correspond with the
  name as written upon the face of the within instrument in every particular
                      without alteration or enlargement.

                                     B-19
<PAGE>

                                                                       EXHIBIT C

                                    FORM OF
                       CONSOLIDATED NATURAL GAS COMPANY
                          Medium-Term Notes, Series A
Authentication Certificate Supplemental to the Fourth Supplemental Indenture
----------------------------------------------------------------------------
dated as of _________, 2002
---------------------------

<TABLE>
<S>                                                                        <C>
                                                                           ___  Original Issue Discount Note
CUSIP Number:_________________________________________                          ___ Subject to special provisions set forth therein
                                                                                ___ For federal income tax purposes only Original
Form of Note:                                                                   issue discount: _______________%
___ Book-Entry                                                                  Yield to maturity: __________ %
___ Certificated                                                                Method used to determine yield to maturity:
                                                                                    ___ Approximate
             Name and Address of Registered Owner:                                  ___ Exact
                     Cede & Company                                             Original issue discount applicable to short accrual
                     P.O. Box 20, Bowling Green Station                         period:  ________%
                     New York, NY  10004                                        Amount payable upon acceleration: ________%

Taxpayer Identification Number of                                          Interest Rate/Initial Interest Rate:_____________________
Registered Owner: ____________________________________
                                                                           Interest Payment Dates:__________________________________
Principal Amount:  U.S. $_____________________________
                                                                           Regular Record Dates:____________________________________
Specified Currency:
               ___  United States dollars                                  Interest Reset Dates:____________________________________
               ___  Other: ___________
                                                                                                Interest Reset Period:______________
Denominations:
               ___ $25                                                     Calculation Dates:_______________________________________
               ___ $1,000
               ___ Other: _______                                          Interest Determination Dates:____________________________

Original Issue Date: ________                                              Time of calculation:_____________________________________

Stated Maturity Date: ________                                             Index Currency:__________________________________________

Agents' Commission: $ _____________                                        Index Maturity:__________________________________________

Issue Price (Dollar Amount and Percentage of Principal                     Spread:__________________________________________________
Amount):  $ _________ / ________ %

Net Proceeds to the Company: $ _____________                               Spread Multiplier:_______________________________________

Trade Date: ___________                                                    Maximum Interest Rate:___________________________________

Settlement Date: ____________                                              Minimum Interest Rate:___________________________________

                                                                          Refunding Rate:___________________________________________
</TABLE>

                                      C-1
<PAGE>

<TABLE>
<S>                                                                       <C>
Interest Rate Basis (and, if applicable, related Interest Period):        Aggregate initial offering price of Securities issued
       ___ Fixed Rate Note                                                under Registration statement no. 333-55904 through date
       ___ Regular Floating Rate Note                                     hereof (including this Note): $ _________
       ___ Inverse Floating Rate Note
           Fixed Interest Rate:_________                                  Aggregate initial offering price of Notes issued through
       ___ Floating Rate/Fixed Rate Note                                  date hereof (including this Note): $ _________
           Fixed Interest Rate:_________
           Fixed Rate Commencement Date: _________                        Calculation Agent:________________________________________

Base Rate:                                                                Exchange Rate Agent:______________________________________
       ___ CD Rate
       ___ Commercial Paper Rate                                          Paying Agent:_____________________________________________
       ___ CMT Rate
           ___ CMT Telerate Page 7051
           ___ CMT Telerate Page 7052
               ___   one-week average rate
               ___   one-month average rate
       ___ Federal Funds Rate
       ___ LIBOR Rate
           ___ LIBOR Reuters
           ___ LIBOR Telerate
           Time for rate quotes if not 11:00 a.m., London time:_______
       ___ Prime Rate
       ___ Treasury Rate
       ___ Other Base Rate (as described below):

Redemption:
       ___ Not Redeemable Prior to Stated Maturity Date
       ___ Redeemable Prior to Stated Maturity Date
           Redemption  Price:
           ___  Make Whole
                Basis Points: _________
           ___  Other Redemption Price (as described below):
           Limitation Date: __________
           Other Terms (as described below):

Repayment:
       ___ Not subject to repayment prior to the Stated Maturity Date
       ___ Subject to repayment prior to the Stated Maturity Date at the
           option of the holder of the Notes.
           Repayment Price: ________%
           ___ 100%                                                       CONSOLIDATED NATURAL GAS COMPANY *
           ___ Other (as described below)
           Limitation Date: ___________

                                                                          By:______________________________________

Other Terms

                                                                          By:______________________________________
</TABLE>

____________________________
* To be signed by any two of the following officers: Chairman of the Board,
President, any Vice President, Treasurer, Corporate Secretary, or Controller.

                                      C-2