EXHIBIT 4.5




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



                           FIRST SUPPLEMENTAL INDENTURE

                                     BETWEEN

                            WPS RESOURCES CORPORATION

                                       AND

                       STATE STREET BANK AND TRUST COMPANY

                           DATED AS OF __________, 1998




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




                                TABLE OF CONTENTS


                                    ARTICLE I
                                   DEFINITIONS


                                                                                
     SECTION 1.1    Definition of Terms. . . . . . . . . . . . . . . . . . . . . .  2
  
                                         ARTICLE II
                       GENERAL TERMS AND CONDITIONS OF THE DEBENTURES
     SECTION 2.1    Designation and Principal Amount.. . . . . . . . . . . . . . .  3
     SECTION 2.2    Maturity.. . . . . . . . . . . . . . . . . . . . . . . . . . .  3
     SECTION 2.3    Denominations, Form and Payment. . . . . . . . . . . . . . . .  3
     SECTION 2.4    Global Debenture.. . . . . . . . . . . . . . . . . . . . . . .  3
     SECTION 2.5    Interest.. . . . . . . . . . . . . . . . . . . . . . . . . . .  5

                                        ARTICLE III
                               REDEMPTION OF THE DEBENTURES
     SECTION 3.1    Redemption; Conditions to Redemption.. . . . . . . . . . . . .  6
     SECTION 3.2    No Sinking Fund. . . . . . . . . . . . . . . . . . . . . . . .  6

                                         ARTICLE IV
                            EXTENSION OF INTEREST PAYMENT PERIOD
     SECTION 4.1    Extension of Interest Payment Period.. . . . . . . . . . . . .  7
     SECTION 4.2    Notice of Extension. . . . . . . . . . . . . . . . . . . . . .  7

                                         ARTICLE V
                                         EXPENSES
     SECTION 5.1    Payment of Expenses. . . . . . . . . . . . . . . . . . . . . .  8
     SECTION 5.2    Payment Upon Resignation or Removal. . . . . . . . . . . . . .  9

                                         ARTICLE VI
                                    FORM OF DEBENTURE
     SECTION 6.1    Form of Debenture. . . . . . . . . . . . . . . . . . . . . . .  9

                                        ARTICLE VII
                               COVENANT TO LIST ON EXCHANGE
     SECTION 7.1    Listing on Exchange. . . . . . . . . . . . . . . . . . . . . . 17

                                       ARTICLE VIII
                              ORIGINAL ISSUE OF DEBENTURES
     SECTION 8.1    Original Issue of Debentures.. . . . . . . . . . . . . . . . . 17



                                        ARTICLE IX
                                       MISCELLANEOUS
     SECTION 9.1    Ratification of Indenture. . . . . . . . . . . . . . . . . . . 17
     SECTION 9.2    Trustee Not Responsible for Recitals.. . . . . . . . . . . . . 17
     SECTION 9.3    Governing Law. . . . . . . . . . . . . . . . . . . . . . . . . 17
     SECTION 9.4    Separability.. . . . . . . . . . . . . . . . . . . . . . . . . 18
     SECTION 9.5    Counterparts.  . . . . . . . . . . . . . . . . . . . . . . . . 18




     FIRST SUPPLEMENTAL INDENTURE, dated as of __________, 1998 (the "First 
Supplemental Indenture"), between WPS RESOURCES CORPORATION, a Wisconsin 
corporation (the "Company"), and STATE STREET BANK AND TRUST COMPANY, a 
Massachusetts trust company, not in its individual capacity but solely as 
trustee (the "Trustee") under the Indenture dated as of __________, 1998 
between the Company and the Trustee (the "Indenture").

                               W I T N E S S E T H:

    WHEREAS, the Company executed and delivered the Indenture to the Trustee 
to provide for the future issuance of the Company's unsecured junior 
subordinated debt securities to be issued from time to time in one or more 
series as might be determined by the Company under the Indenture, in an 
unlimited aggregate principal amount which may be authenticated and delivered 
as provided in the Indenture;

     WHEREAS, pursuant to the terms of the Indenture, the Company desires to 
provide for the establishment of a new series of its Debt Securities to be 
known as its [_____% Junior Subordinated Deferrable Interest Debentures] due 
[2028] (the "Debentures"), the form and substance of such Debentures and the 
terms, provisions and conditions thereof to be set forth as provided in the 
Indenture and this First Supplemental Indenture;

     WHEREAS, WPSR Capital Trust I, a Delaware statutory business trust (the 
"Trust"), has offered to the public $50,000,000 aggregate stated liquidation 
amount of its ____% Trust Preferred Securities (the "Trust Preferred 
Securities") and has offered to the Company $1,500,000 aggregate stated 
liquidation amount of its __% Trust Common Securities, such Trust Preferred 
Securities and Trust Common Securities representing undivided beneficial 
interests in the assets of the Trust and proposes to invest the proceeds from 
such offering, in $51,500,000 aggregate principal amount of the Debentures; 
and

     WHEREAS, the Company has requested that the Trustee execute and deliver 
this First Supplemental Indenture and all requirements necessary to make this 
First Supplemental Indenture a valid instrument in accordance with its terms, 
and to make the Debentures, when executed by the Company and authenticated 
and delivered by the Trustee, the valid obligations of the Company, have been 
performed, and the execution and delivery of this First Supplemental 
Indenture has been duly authorized in all respects;

     NOW THEREFORE, in consideration of the purchase and acceptance of the 
Debentures by the holders thereof, and for the purpose of setting forth, as 
provided in the Indenture, the form and substance of the Debentures and the 
terms, provisions and conditions thereof, the Company covenants and agrees 
with the Trustee as follows:



                                    ARTICLE I
                                   DEFINITIONS

SECTION 1.1    DEFINITION OF TERMS.

          Unless the context otherwise requires:

          (a)  a term defined in the Indenture has the same meaning when used 
in this First Supplemental Indenture;

          (b)  a term defined anywhere in this First Supplemental Indenture 
has the same meaning throughout;

          (c)  the singular includes the plural and vice versa;

          (d)  a reference to a Section or Article is to a Section or Article 
of this First Supplemental Indenture;

          (e)  headings are for convenience of reference only and do not 
affect interpretation;

          (f)  the following terms have the meanings given to them in the 
Declaration: (i) Administrative Trustee; (ii) Clearing Agency; (iii) Delaware 
Trustee; (iv) Distributions; (v) Investment Company Event; (vi) Pricing 
Agreement; (vii) Property Trustee; (viii) Tax Event; (ix) Trust Preferred 
Security Certificate; and (x) Underwriting Agreement;

          (g)  the following terms have the meanings given to them in this 
Section 1.1(g):

          "Additional Interest" shall have the meaning set forth in Section 2.5.

          "Compounded Interest" shall have the meaning set forth in Section 4.1.

          "Coupon Rate" shall have the meaning set forth in Section 2.5.

          "Declaration" means the Amended and Restated Declaration of Trust 
of WPSR Capital Trust I, a Delaware statutory business trust, dated as of 
__________, 1998, including the Terms of Securities attached thereto as Annex 
I.

          "Deferred Interest" shall have the meaning set forth in Section 4.1.

          "Extended Interest Payment Period" shall have the meaning set forth in
Section 4.1.

          "Global Debenture" shall have the meaning set forth in Section 2.4.

                                       2


          "Maturity Date" means the date on which the Debentures mature and 
on which the principal shall be due and payable together with all accrued and 
unpaid interest thereon including Compounded Interest and Additional 
Interest, if any.

          "Non Book-Entry Trust Preferred Securities" shall have the meaning 
set forth in Section 2.4.

          "Redemption Price" shall have the meaning set forth in Section 3.1.

                                      ARTICLE II
                    GENERAL TERMS AND CONDITIONS OF THE DEBENTURES

SECTION 2.1    DESIGNATION AND PRINCIPAL AMOUNT.

          There is hereby authorized a series of Debt Securities designated 
the "____% Junior Subordinated Deferrable Interest Debentures due ____", 
limited in aggregate principal amount to $51,500,000, which amount shall be 
as set forth in any written order of the Company for the authentication and 
delivery of Debentures pursuant to Section 2.4 of the Indenture.

SECTION 2.2    MATURITY.

          The Maturity Date is __________, ____.

SECTION 2.3    DENOMINATIONS, FORM AND PAYMENT.

          The Debentures shall be issuable in denominations of twenty-five 
U.S. Dollars ($25) or any integral multiple thereof.  Except as provided in 
Section 2.4, the Debentures shall be issued in fully registered certificated 
form without interest coupons. Principal and interest on the Debentures 
issued in certificated form will be payable, the transfer of such Debentures 
will be registrable and such Debentures will be exchangeable for Debentures 
bearing identical terms and provisions at the office or agency of the 
Trustee; PROVIDED, HOWEVER, that payment of interest may be made at the 
option of the Company by check mailed to the holder at such address as shall 
appear in the Security Register or by wire transfer to an account 
appropriately designated by such holder. Notwithstanding the foregoing, so 
long as the holder of any Debentures is the Property Trustee, the payment of 
the principal of and interest (including Compounded Interest and Additional 
Interest, if any) on such Debentures held by the Property Trustee will be 
made at such place and to such account as may be designated by the Property 
Trustee.

SECTION 2.4    GLOBAL DEBENTURE.

          (a)  In the event that the Debentures are distributed to holders of
Trust Preferred Securities in liquidation of such holders' interests in the
Trust:

                                      3



               (i)  the Debentures in certificated form may be presented to the
     Trustee by the Property Trustee in exchange for a global Debenture in an
     aggregate principal amount equal to the aggregate principal amount of all
     outstanding Debentures (a "Global Debenture"), to be registered in the name
     of the Depositary, or its nominee, and delivered by the Trustee to the
     Depositary for crediting to the accounts of its participants pursuant to
     the instructions of the Administrative Trustees.  The Company, upon any
     such presentation, shall execute a Global Debenture in such aggregate
     principal amount and deliver the same to the Trustee for authentication and
     delivery in accordance with the Indenture and this First Supplemental
     Indenture. Payments on the Debentures issued as a Global Debenture will be
     made to the Depositary; and

               (ii) if any Trust Preferred Securities are held in non book-entry
     certificated form, the Debentures in certificated form may be presented to
     the Trustee by the Property Trustee and any Trust Preferred Security
     Certificate which represents Trust Preferred Securities other than Trust
     Preferred Securities held by the Clearing Agency or its nominee ("Non Book-
     Entry Trust Preferred Securities") will be deemed to represent beneficial
     interests in Debentures presented to the Trustee by the Property Trustee
     having an aggregate principal amount equal to the aggregate stated
     liquidation amount of the Non Book-Entry Trust Preferred Securities until
     such Trust Preferred Security Certificates are presented to the Security
     Registrar for transfer or reissuance, at which time such Trust Preferred
     Security Certificates will be cancelled and a Debenture, registered in the
     name of the holder of the Trust Preferred Security Certificate or the
     transferee of the holder of such Trust Preferred Security Certificate, as
     the case may be, with an aggregate principal amount equal to the aggregate
     stated liquidation amount of the Trust Preferred Security Certificate
     cancelled, will be executed by the Company and delivered to the Trustee for
     authentication and delivery in accordance with the Indenture and this First
     Supplemental Indenture. On issue of such Debentures, Debentures with an
     equivalent aggregate principal amount that were presented by the Property
     Trustee to the Trustee will be deemed to have been cancelled.

          (b)  A Global Debenture may be transferred, in whole but not in part,
only to another nominee of the Depositary, or to a successor Depositary selected
or approved by the Company or to a nominee of such successor Depositary.

          (c)  If at any time the Depositary notifies the Company that it is
unwilling or unable to continue as Depositary or if at any time the Depositary
shall no longer be registered or in good standing under the Exchange Act, or
other applicable statute or regulation, and a successor Depositary is not
appointed by the Company within 90 days after the Company receives such notice
or becomes aware of such condition, as the case may be, the Company will
execute, and, subject to Article II of the Indenture, the Trustee, upon written
notice from the Company, will authenticate and deliver the Debentures in
definitive registered form, in authorized denominations, and in an aggregate
principal amount equal to the principal amount of the Global Debenture in
exchange for such Global Debenture. In addition, the Company may at any time
determine, in its sole discretion, that the Debentures shall no longer be
represented by a Global 

                                      4



Debenture. In such event the Company will execute, and subject to Section 
2.11(c) of the Indenture, the Trustee, upon receipt of an Officers' 
Certificate evidencing such determination by the Company, will authenticate 
and deliver the Debentures in definitive registered form without coupons, in 
authorized denominations, and in an aggregate principal amount equal to the 
principal amount of the Global Debenture in exchange for such Global 
Debenture. Upon the exchange of the Global Debenture for such Debentures in 
definitive registered form without coupons, in authorized denominations, the 
Global Debenture shall be cancelled by the Trustee. Such Debentures in 
definitive registered form issued in exchange for the Global Debenture shall 
be registered in such names and in such authorized denominations as the 
Depositary, pursuant to instructions from its direct or indirect participants 
or otherwise, shall instruct the Trustee. The Trustee shall deliver such 
Debentures to the Depositary for delivery to the Persons in whose names such 
Debentures are so registered.

SECTION 2.5    INTEREST.

          (a)  Each Debenture will bear interest at the rate of ____% per 
annum (the "Coupon Rate") from the original date of issuance until the 
principal thereof becomes due and payable, and on any overdue principal and 
(to the extent that payment of such interest is enforceable under applicable 
law) on any overdue installment of interest, at the Coupon Rate, compounded 
quarterly payable (subject to the provisions of Article IV) quarterly in 
arrears on March 31, June 30, September 30 and December 31 of each year 
(each, an "Interest Payment Date"), commencing September 30, 1998, to the 
Person in whose name such Debenture or any predecessor Debenture is 
registered, at the close of business on the regular record date for such 
interest installment, which, in respect of any Debentures of which the 
Property Trustee is the holder of a Global Debenture, shall be the close of 
business on the Business Day next preceding that Interest Payment Date. 
Notwithstanding the foregoing sentence, if the Trust Preferred Securities are 
no longer in book-entry only form or  if the Debentures are not held by the 
Property Trustee and are not represented by a Global Debenture, the Company 
may select a regular record date for such interest installment which shall be 
any date not less than three Business Days before an Interest Payment Date.

          (b)  The amount of interest payable for any period will be computed 
on the basis of a 360-day year of twelve 30-day months. Except as provided in 
the following sentence, the amount of interest payable for any period shorter 
than a full calendar quarter for which interest is computed will be computed 
on the basis of the actual number of days elapsed per 90-day period in a 
360-day year of twelve 30-day months. In the event that any date on which 
interest is payable on the Debentures is not a Business Day, then payment of 
interest payable on such date will be made on the next succeeding day which 
is a Business Day (and without any interest or other payment in respect of 
any such delay), except that, if such Business Day is in the next succeeding 
calendar year, such payment shall be made on the immediately preceding 
Business Day, in each case with the same force and effect as if made on such 
date.

          (c)  If, at any time while the Property Trustee is the holder of 
any Debentures, the Trust or the Property Trustee is required to pay any 
taxes, duties, assessments or 

                                      5



governmental charges of whatever nature (other than withholding taxes) 
imposed by the United States, or any other taxing authority, then, in any 
case, the Company will pay as additional interest ("Additional Interest") on 
the Debentures held by the Property Trustee, such additional amounts as shall 
be required so that the net amounts received and retained by the Trust and 
the Property Trustee after paying such taxes, duties, assessments or other 
governmental charges will be equal to the amounts the Trust and the Property 
Trustee would have received had no such taxes, duties, assessments or other 
governmental charges been imposed.

                                     ARTICLE III
                             REDEMPTION OF THE DEBENTURES

SECTION 3.1    REDEMPTION; CONDITIONS TO REDEMPTION.

          (a)  Subject to the provisions of Article III of the Indenture, the 
Company shall have the right to redeem the Debentures, (i) on or after 
__________, 2003, in whole at any time or in part from time to time, or (ii) 
in the event that a Tax Event or an Investment Company Event shall occur and 
be continuing, then prior to __________, 2003 in whole (but not in part) 
within 90 days following the occurrence of such Tax Event or Investment 
Company Event, upon not less than 30 nor more than 60 days' prior written 
notice, at a redemption price (the "Redemption Price") equal to the principal 
amount of the Debentures to be redeemed, plus any accrued and unpaid 
interest, including Additional Interest, if any, thereon to the date of such 
redemption (the "Redemption Date"); PROVIDED, HOWEVER, that the Company shall 
not redeem the Debentures in part unless all accrued but unpaid interest has 
been paid in full on all of the Debentures Outstanding for all quarterly 
interest payment periods terminating on or prior to the Redemption Date. If 
the Debentures are only partially redeemed pursuant to this Section 3.1(a), 
the Debentures will be redeemed pro rata or by lot or by any other method 
utilized by the Trustee; provided, that if at the time of redemption the 
Debentures are registered as a Global Debenture, the Depositary shall 
determine, in accordance with its procedures, the principal amount of such 
Debentures held by each holder of Debentures to be redeemed.

          (b)  For so long as the Trust is the Holder of all Outstanding 
Debentures, the proceeds of any redemption provided for in this Section 3.1 
shall be used by the Trust to redeem Trust Preferred Securities in accordance 
with their terms.

          (c)  If a partial redemption of the Debentures would result in the 
delisting of the Trust Preferred Securities issued by the Trust from any 
national securities exchange or other organization on which the Trust 
Preferred Securities are then listed, the Company shall not be permitted to 
effect such partial redemption and may only redeem the Debentures in whole.

SECTION 3.2    NO SINKING FUND.

          The Subordinated Debentures are not entitled to the benefit of any
sinking fund.

                                      6



                                      ARTICLE IV
                         EXTENSION OF INTEREST PAYMENT PERIOD

SECTION 4.1    EXTENSION OF INTEREST PAYMENT PERIOD.

          The Company shall have the right, at any time and from time to time 
during the term of the Debentures, to defer payments of interest by extending 
the interest payment period of such Debentures for a period not exceeding 20 
consecutive calender quarters (the "Extended Interest Payment Period"), 
during which Extended Interest Payment Period no interest shall be due and 
payable; provided that no Extended Interest Payment Period may extend beyond 
the Maturity Date. To the extent permitted by applicable law, interest, the 
payment of which has been deferred because of the extension of the interest 
payment period pursuant to this Section 4.1, will bear interest thereon at 
the Coupon Rate compounded quarterly for each quarterly interest payment 
period of the Extended Interest Payment Period ("Compounded Interest"). At 
the end of the Extended Interest Payment Period, the Company shall pay all 
interest accrued and unpaid on the Debentures, including any Additional 
Interest and Compounded Interest (together, "Deferred Interest") that shall 
be payable to the holders of the Debentures in whose names the Debentures are 
registered in the Security Register on the first record date after the end of 
the Extended Interest Payment Period. Before the termination of any Extended 
Interest Payment Period, the Company may further extend such period, provided 
that such period together with all such further extensions thereof shall not 
exceed 20 consecutive calendar quarters or extend beyond the maturity date of 
the Debentures. Upon the termination of any Extended Interest Payment Period 
and upon the payment of all Deferred Interest then due, the Company may 
commence a new Extended Interest Payment Period, subject to the foregoing 
requirements. No interest shall be due and payable during an Extended 
Interest Payment Period, except at the end thereof, but the Company may 
prepay at any time all or any portion of the interest accrued during an 
Extended Interest Payment Period.

SECTION 4.2    NOTICE OF EXTENSION.

          (a)  If the Property Trustee is the only registered holder of the
Debentures at the time the Company elects an Extended Interest Payment Period,
the Company shall give written notice to the the Administrative Trustees and the
Property Trustee of its election of such Extended Interest Payment Period at
least one Business Day before the earlier of (i) the next succeeding date on
which Distributions on the Trust Securities issued by the Trust are payable, or
(ii) the date the Trust is required to give notice of the record date, or the
date such Distributions are payable, to the New York Stock Exchange or any other
applicable self-regulatory organization or to holders of the Trust Preferred
Securities, but in any event at least one Business Day before such record date.

          (b)  If the Property Trustee is not the only holder of the Debentures
at the time the Company elects an Extended Interest Payment Period, the Company
shall give the holders of the Debentures and the Trustee written notice of its
election of such Extended Interest Payment Period at least 10 Business Days
before the earlier of (i) the next succeeding Interest Payment 

                                      7



Date, or (ii) the date the Company is required to give notice of the record 
or payment date of such interest payment to any applicable self-regulatory 
organization or to holders of the Debentures, but in any event at least two 
Business Days before such record date.

          (c)  The quarterly interest payment period in which any notice is
given pursuant to paragraphs (a) or (b) of this Section 4.2 shall be counted as
one of the 20 consecutive calendar quarters permitted in the maximum Extended
Interest Payment Period permitted under Section 4.1.

                                      ARTICLE V
                                       EXPENSES

SECTION 5.1    PAYMENT OF EXPENSES.

          (a)  In connection with the offering, sale and issuance of the
Debentures to the Property Trustee and in connection with the sale of the Trust
Securities by the Trust, the Company, in its capacity as borrower with respect
to the Debentures, shall:

               (1)  pay all costs and expenses relating to the offering, sale
     and issuance of the Debentures, including commissions to the underwriters
     payable pursuant to the Underwriting Agreement and compensation of the
     Trustee under the Indenture in accordance with the provisions of Section
     7.6 of the Indenture;

               (2)  pay all costs and expenses of the Trust (including, but not
     limited to, costs and expenses relating to the organization of the Trust,
     the offering, sale and issuance of the Trust Securities (including
     commissions to the underwriters in connection therewith), the fees and
     expenses of the Property Trustee and the Delaware Trustee, the costs and
     expenses relating to the operation of the Trust, including without
     limitation, costs and expenses of accountants, attorneys, statistical or
     bookkeeping services, expenses for printing and engraving and computing or
     accounting equipment, paying agent(s), registrar(s), transfer agent(s),
     duplicating, travel and telephone and other telecommunications expenses and
     costs and expenses incurred in connection with the acquisition, financing,
     and disposition of Trust assets); and

               (3)  pay any and all taxes (other than United States withholding
     taxes attributable to the Trust or its assets) and all liabilities, costs
     and expenses with respect to such taxes of the Trust.

          (b)  The obligations of the Company under paragraphs (a)(2) and (a)(3)
of this Section 5.1 are for the benefit of, and shall be enforceable by, any
person to whom any such liabilities, costs, expenses, and taxes are owed (a
"Creditor"), whether or not such Creditor has received notice thereof. Any such
Creditor may enforce such obligations of the Company directly against the
Company, and the Company irrevocably waives any right or remedy to require that
any such Creditor take any action against the Trust or any other person before
proceeding against 

                                      8



the Company. The Company shall execute such additional agreements as may be 
necessary or desirable to give full effect to the provisions of this Section 
5.1(b).

SECTION 5.2    PAYMENT UPON RESIGNATION OR REMOVAL.

          Upon termination of this First Supplemental Indenture or the 
Indenture or the removal or resignation of the Trustee pursuant to Section 
7.10 of the Indenture, the Company shall pay to the Trustee all amounts 
accrued and owing to the Trustee to the date of such termination, removal or 
resignation. Upon termination of the Declaration or the removal or 
resignation of the Delaware Trustee or the Property Trustee, as the case may 
be, pursuant to Section 5.6 of the Declaration, the Company shall pay to the 
Delaware Trustee or Property Trustee, as applicable, all amounts accrued and 
owing to such Trustee to the date of such termination, removal or resignation.

                                      ARTICLE VI
                                  FORM OF DEBENTURE

SECTION 6.1    FORM OF DEBENTURE.

          The Debentures and the Trustee's Certificate of Authentication to be
endorsed thereon are to be substantially in the following forms:

                             (FORM OF FACE OF DEBENTURE)

          [IF THE DEBENTURE IS TO BE A GLOBAL DEBENTURE, INSERT - This Debenture
is a Global Debenture within the meaning of the Indenture hereinafter referred
to and is registered in the name of a Depositary or a nominee of a Depositary.
This Debenture is exchangeable for Debentures registered in the name of a person
other than the Depositary or its nominee only in the limited circumstances
described in the Indenture, and no transfer of this Debenture (other than a
transfer of this Debenture as a whole 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) may be registered except in limited circumstances.

          Unless this Debenture is presented by an authorized representative of
The Depository Trust Company (55 Water Street, New York, New York) to the issuer
or its agent for registration of transfer, exchange or payment, and any
Debenture issued is registered in the name of Cede & Co. or such other name as
requested by an authorized representative of The Depository Trust Company and
any payment hereon is made to Cede & Co., ANY TRANSFER, PLEDGE OR OTHER USE
HEREOF FOR VALUE OR OTHERWISE BY A PERSON IS WRONGFUL since the registered owner
hereof, Cede & Co., has an interest herein.]

                                      9



No._________________

                              WPS RESOURCES CORPORATION


               ____% JUNIOR SUBORDINATED DEFERRABLE INTEREST DEBENTURE
                                       DUE ____

          WPS Resources Corporation, a Wisconsin corporation (the "Company",
which term includes any successor corporation under the Indenture hereinafter
referred to), for value received, hereby promises to pay to ______________, or
registered assigns, the principal sum of $___________ on __________, ____, and
to pay interest on said principal sum from __________, 1998 or from the most
recent interest payment date (each such date, an "Interest Payment Date") to
which interest has been paid or duly provided for, quarterly (subject to
deferral as set forth herein) in arrears on March 31, June 30, September 30 and
December 31 of each year commencing ________, 199_, at the rate of ____% per
annum until the principal hereof shall have become due and payable, plus
Additional Interest, if any, and on any overdue principal and (without
duplication and to the extent that payment of such interest is enforceable under
applicable law) on any overdue installment of interest at the same rate per
annum compounded quarterly. The amount of interest payable on any Interest
Payment Date shall be computed on the basis of a 360-day year of twelve 30-day
months. The amount of interest payable for any period shorter than a full
quarterly interest payment period for which interest is computed will be
computed on the basis of actual number of days elapsed in a 360-day year of
twelve 30-day months. In the event that any date on which interest is payable on
this Debenture is not a Business Day, then payment of interest payable on such
date will be made on the next succeeding day that is a Business Day (and without
any interest or other payment in respect of any such delay), except that, if
such Business Day is in the next succeeding calendar year, such payment shall be
made on the immediately preceding Business Day, in each case with the same force
and effect as if made on such date. The interest installment so payable, and
punctually paid or duly provided for, on any Interest Payment Date will, as
provided in the Indenture, be paid to the person in whose name this Debenture
(or one or more Predecessor Securities, as defined in said Indenture) is
registered at the close of business on the regular record date for such interest
installment, which shall be the close of business on the business day next
preceding such Interest Payment Date. [IF THE TRUST PREFERRED SECURITIES ARE NO
LONGER REPRESENTED BY A GLOBAL CERTIFICATE OR IF THE DEBENTURES ARE NOT HELD BY
THE PROPERTY TRUSTEE AND ARE NOT REPRESENTED BY A GLOBAL DEBENTURE -- which
shall be the close of business on [insert regular record date selected by the
Company in accordance with Section 2.5].] Any such interest installment not
punctually paid or duly provided for shall forthwith cease to be payable to the
registered holders on such regular record date and may be paid to the Person in
whose name this Debenture (or one or more Predecessor Securities) is registered
at the close of business on a special record date to be fixed by the Trustee for
the payment of such defaulted interest, notice of which shall be given to the
registered holders of this series of Debentures not less than 10 days prior to
such special record date, or may be paid at any time in any other lawful manner
not inconsistent with the 

                                      10


requirements of any securities exchange on which the Debentures may be 
listed, and upon such notice as may be required by such exchange, all as more 
fully provided in the Indenture. The principal of (and premium, if any) and 
the interest on this Debenture shall be payable at the office or agency of 
the Trustee maintained for that purpose in any coin or currency of the United 
States of America that at the time of payment is legal tender for payment of 
public and private debts; PROVIDED, HOWEVER, that payment of interest may be 
made at the option of the Company by check mailed to the registered holder at 
such address as shall appear in the Security Register or by wire transfer to 
an account appropriately designated by such holder. Notwithstanding the 
foregoing, so long as the holder of this Debenture is the Property Trustee, 
the payment of the principal of and interest on this Debenture will be made 
at such place and to such account as may be designated by the Property 
Trustee.

          The indebtedness evidenced by this Debenture is, to the extent
provided in the Indenture, subordinate and junior in right of payment to the
prior payment in full of all Senior Indebtedness of the Company, and this
Debenture is issued subject to the provisions of the Indenture with respect
thereto. Each holder of this Debenture, by accepting the same, (a) agrees to and
shall be bound by such provisions, (b) authorizes and directs the Trustee on his
or her behalf to take such action as may be necessary or appropriate to
acknowledge or effectuate the subordination so provided, and (c) appoints the
Trustee his or her attorney-in-fact for any and all such purposes. Each holder
hereof, by his or her acceptance hereof, hereby waives all notice of the
acceptance of the subordination provisions contained herein and in the Indenture
by each holder of Senior Indebtedness of the Company, whether now outstanding or
hereafter incurred, and waives reliance by each such holder upon said
provisions.

          This Debenture shall not be entitled to any benefit under the
Indenture hereinafter referred to, be valid or become obligatory for any purpose
until the Certificate of Authentication hereon shall have been signed by or on
behalf of the Trustee.







                                       11


          The provisions of this Debenture are continued on the reverse side
hereof and such continued provisions shall for all purposes have the same effect
as though fully set forth at this place.

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


Dated___________________________

                                        WPS RESOURCES CORPORATION


                                        By:______________________
                                        Name:
                                        Title:

Attest:

By:_____________________________
Name:
Title:







                                       12


                       (FORM OF CERTIFICATE OF AUTHENTICATION)

                            CERTIFICATE OF AUTHENTICATION


          This is one of the Debentures of the series of Debentures described in
the within-mentioned Indenture.

STATE STREET BANK AND TRUST COMPANY     or___________________________
as Trustee                                 as Authenticating Agent




By________________________________      By___________________________
     Authorized Signatory                  Authorized Signatory








                                       13



                            (FORM OF REVERSE OF DEBENTURE)

          This Debenture is one of a duly authorized series of Debentures of 
the Company (herein sometimes referred to as the "Debentures"), specified in 
the Indenture, all issued or to be issued in one or more series under and 
pursuant to an Indenture dated as of __________, 1998, duly executed and 
delivered between the Company and State Street Bank and Trust Company, as 
Trustee (the "Trustee"), as supplemented by the First Supplemented Indenture 
dated as of __________, 1998, between the Company and the Trustee (the 
Indenture as so supplemented, the "Indenture"), to which Indenture and all 
indentures supplemental thereto reference is hereby made for a description of 
the rights, limitations of rights, obligations, duties and immunities 
thereunder of the Trustee, the Company and the holders of the Debentures. By 
the terms of the Indenture, the Debentures are issuable in series that may 
vary as to amount, date of maturity, rate of interest and in other respects 
as provided in the Indenture. This series of Debentures is limited in 
aggregate principal amount as specified in said First Supplemental Indenture.

          Subject to the provisions of Article III of the Indenture, the 
Company has the right to redeem this Debenture (i) on or after __________, 
2003, in whole at any time or in part from time to time, or (ii) in the event 
that a Tax Event or Investment Company Event (as defined in the First 
Supplemental Indenture) shall occur and be continuing, then prior to 
__________, 2003, in whole (but not in part) within 90 days following the 
occurrence of such Tax Event or Investment Company Event upon not less than 
30 nor more than 60 days' prior written notice, at a redemption price (the 
"Redemption Price"), equal to the principal amount of the Debentures to be 
redeemed plus any accrued and unpaid interest, including Additional Interest, 
if any, thereon to the date of such redemption (the "Redemption Date"); 
PROVIDED, HOWEVER, that the Company shall not redeem the Debentures in part 
unless all accrued but unpaid interest has been paid in full on all of the 
Debentures for all quarterly interest payment periods terminating on or prior 
to the Redemption Date.

          If the Debentures are only partially redeemed by the Company, the 
Debentures will be redeemed pro rata or by lot or by any other method 
utilized by the Trustee; provided that if, at the time of redemption, the 
Debentures are registered as a Global Debenture, the Depositary shall 
determine the principal amount of such Debentures held by each holder to be 
redeemed in accordance with its procedures.

          In the event of redemption of this Debenture in part only, a new 
Debenture or Debentures of this series for the unredeemed portion hereof will 
be issued in the name of the holder hereof upon the cancellation hereof.

          In case an Event of Default, as defined in the Indenture, shall 
have occurred and be continuing, the principal of all of the Debentures may 
be declared, and upon such declaration shall become immediately due and 
payable, in the manner, with the effect and subject to the conditions 
provided in the Indenture.







                                       14



          The Indenture contains provisions permitting the Company and the 
Trustee, with the consent of the holders of not less than a majority in 
aggregate principal amount of the Debentures of each series affected at the 
time Outstanding, as defined in the Indenture, to execute supplemental 
indentures for the purpose of adding any provisions to or changing in any 
manner or eliminating any of the provisions of the Indenture or of any 
supplemental indenture or of modifying in any manner the rights of the 
holders of the Debentures; PROVIDED, HOWEVER, that no such supplemental 
indenture shall (i) extend the fixed maturity of any Debentures of any 
series, or reduce the principal amount thereof, or reduce the rate or extend 
the time of payment of interest thereon, or reduce any premium payable upon 
the redemption thereof, without the consent of the holder of each Debenture 
so affected, or (ii) reduce the aforesaid percentage of Debentures, the 
holders of which are required to consent to any such supplemental indenture, 
without the consent of the holders of each Debenture then Outstanding and 
affected thereby. The Indenture also contains provisions permitting the 
holders of a majority in aggregate principal amount of the Debentures of any 
series at the time Outstanding affected thereby, on behalf of all of the 
holders of the Debentures of such series, to waive any past default in the 
performance of any of the covenants contained in the Indenture, or 
established pursuant to the Indenture with respect to such series, and its 
consequences, except a default in the payment of the principal of or premium, 
if any, or interest on any of the Debentures of such series. Any such consent 
or waiver by the registered holder of this Debenture (unless revoked as 
provided in the Indenture) shall be conclusive and binding upon such holder 
and upon all future holders and owners of this Debenture and of any Debenture 
issued in exchange herefor or in place hereof (whether by registration of 
transfer or otherwise), irrespective of whether or not any notation of such 
consent or waiver is made upon this Debenture.

          No reference herein to the Indenture and no provision of this 
Debenture 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 Debenture at the time and place and at 
the rate and in the money herein prescribed.

          The Company shall have the right at any time during the term of the 
Debentures and from time to time to extend the interest payment period of 
such Debentures for up to 20 consecutive calendar quarters (an "Extended 
Interest Payment Period"), at the end of which period the Company shall pay 
all interest then accrued and unpaid (together with interest thereon at the 
rate specified for the Debentures to the extent that payment of such interest 
is enforceable under applicable law); provided that no Extended Interest 
Payment Date may extend beyond the maturity date of the Debentures. Before 
the termination of any such Extended Interest Payment Period, the Company may 
further extend such Extended Interest Payment Period, provided that such 
Extended Interest Payment Period together with all such further extensions 
thereof shall not exceed 20 consecutive calendar quarters.  At the 
termination of any such Extended Interest Payment Period and upon the payment 
of all accrued and unpaid interest and any additional amounts then due, the 
Company may commence a new Extended Interest Payment Period.

          As provided in the Indenture and subject to certain limitations 
therein set forth, this Debenture is transferable by the registered holder 
hereof on the Security Register of the








                                       15



Company, upon surrender of this Debenture for registration of transfer at the 
Corporate Trust Office of the Trustee or such other location designated by 
the Company pursuant to the Indenture accompanied by a written instrument or 
instruments of transfer in form satisfactory to the Company or the Trustee 
duly executed by the registered holder hereof or his attorney duly authorized 
in writing, and thereupon one or more new Debentures of authorized 
denominations and for the same aggregate principal amount and series will be 
issued to the designated transferee or transferees. No service charge will be 
made for any such transfer, but the Company may require payment of a sum 
sufficient to cover any tax or other governmental charge payable in relation 
thereto.

          Prior to due presentment for registration of transfer of this 
Debenture, the Company, the Trustee, any paying agent and the Security 
Registrar may deem and treat the registered holder hereof as the absolute 
owner hereof (whether or not this Debenture shall be overdue and 
notwithstanding any notice of ownership or writing hereon made by anyone 
other than the Security Registrar) for the purpose of receiving payment of or 
on account of the principal hereof and premium, if any, and interest due 
hereon and for all other purposes, and neither the Company nor the Trustee 
nor any paying agent nor any Security Registrar shall be affected by any 
notice to the contrary.

          No recourse shall be had for the payment of the principal of or the 
interest on this Debenture, or for any claim based hereon, or otherwise in 
respect hereof, or based on or in respect of the Indenture, against any 
incorporator, shareholder, officer or director, past, present or future, as 
such, of the Company or of any predecessor or successor corporation, whether 
by virtue of any constitution, statute or rule of law, or by the enforcement 
of any assessment or penalty or otherwise, all such liability being, by the 
acceptance hereof and as part of the consideration for the issuance hereof, 
expressly waived and released.

          The Debentures of this series are issuable only in registered form 
without coupons in denominations of $25 and any integral multiple thereof. 
[This Global Debenture is exchangeable for Debentures in definitive form only
under certain limited circumstances set forth in the Indenture. Debentures of
this series so issued are issuable only in registered form without coupons in
denominations of $25 and any integral multiple thereof.] As provided in the
Indenture and subject to certain limitations herein and therein set forth,
Debentures of this series so issued are exchangeable for a like aggregate
principal amount of Debentures of this series of a different authorized
denomination, as requested by the holder surrendering the same.

          All terms used in this Debenture that are defined in the Indenture 
shall have the meanings assigned to them in the Indenture.







                                       16



                                     ARTICLE VII
                             COVENANT TO LIST ON EXCHANGE

SECTION 7.1    LISTING ON EXCHANGE.

          If the Debentures are to be issued as a Global Security in 
connection with the distribution of the Debentures to the Holders of the 
Trust Preferred Securities issued by the Trust upon the dissolution of the 
Trust, the Company will use its best efforts to list such Debentures on the 
New York Stock Exchange or on such other exchange on which the Trust 
Preferred Securities are then listed.

                                     ARTICLE VIII
                             ORIGINAL ISSUE OF DEBENTURES

SECTION 8.1    ORIGINAL ISSUE OF DEBENTURES.

          Debentures in the aggregate principal amount of $51,500,000 may, 
upon execution of this First Supplemental Indenture, be executed by the 
Company and delivered to the Trustee for authentication, and the Trustee 
shall thereupon authenticate and deliver said Debentures to or upon the 
written order of the Company, signed by its Chairman, President, or any Vice 
President and its Treasurer or an Assistant Treasurer, without any further 
action by the Company.

                                      ARTICLE IX
                                    MISCELLANEOUS

SECTION 9.1    RATIFICATION OF INDENTURE.

          The Indenture, as supplemented by this First Supplemental 
Indenture, is in all respects ratified and confirmed, and this First 
Supplemental Indenture shall be deemed part of the Indenture in the manner 
and to the extent herein and therein provided.

SECTION 9.2    TRUSTEE NOT RESPONSIBLE FOR RECITALS.

          The recitals herein contained are made by the Company and not by 
the Trustee, and the Trustee assumes no responsibility for the correctness 
thereof. The Trustee makes no representation as to the validity or 
sufficiency of this First Supplemental Indenture.

SECTION 9.3    GOVERNING LAW.

          This First Supplemental Indenture and each Debenture shall be 
deemed to be a contract made under the internal laws of the State of New 
York, and for all purposes shall be construed in accordance with the laws of 
said State.







                                       17


SECTION 9.4    SEPARABILITY.

          In case any one or more of the provisions contained in this First 
Supplemental Indenture or in the Debentures shall for any reason be held to 
be invalid, illegal or unenforceable in any respect, such invalidity, 
illegality or unenforceability shall not affect any other provisions of this 
First Supplemental Indenture or of the Debentures, but this First 
Supplemental Indenture and the Debentures shall be construed as if such 
invalid or illegal or unenforceable provision had never been contained herein 
or therein.

SECTION 9.5    COUNTERPARTS.

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

          IN WITNESS WHEREOF, the parties hereto have caused this First 
Supplemental Indenture to be duly executed on the date or dates indicated in 
the acknowledgments and as of the day and year first above written.

                                   WPS RESOURCES CORPORATION



                                   By:__________________________
                                   Name:________________________
                                   Title:_______________________




COMPANY                            STATE STREET BANK AND TRUST COMPANY
                                   not in its individual capacity
                                   but solely as Trustee



                                   By:__________________________
                                   Name:
                                   Title:







                                       18



STATE OF WISCONSIN  )
                         ) SS:
COUNTY OF BROWN     )


          On the _____ day of _______, 1998, before me personally came 
________________ to me known, who, being by me duly sworn, did depose and say 
that he is the ______________________ of WPS RESOURCES CORPORATION, one of 
the corporations described in and which executed the above instrument, and 
that he signed his name thereto by authority of the Board of Directors of 
said corporation.

          IN WITNESS WHEREOF, I have hereunto set my hand and affixed my seal 
of office this _____ day of _______, 1998.




                                   _____________________________
                                   Notary Public




COMMONWEALTH OF MASSACHUSETTS )
                                   ) SS:
COUNTY OF ___________________      )

          On the _____ day of _______, 1998, before me personally came 
_______________________ to me known, who, being by me duly sworn, did depose 
and say he is _________________________ of STATE STREET BANK AND TRUST 
COMPANY, one of the corporations described in and which executed the above 
instrument, and that he signed his name thereto by authority of the Board of 
Directors of said corporation.

          IN WITNESS WHEREOF, I have hereunto set my hand and affixed my seal 
of office this _____ day of _______, 1998.




                                   _____________________________
                                   Notary Public







                                       19