ALLIANT ENERGY CORP
S-4, 1999-12-16
ELECTRIC & OTHER SERVICES COMBINED
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<PAGE>   1

   AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON DECEMBER 16, 1999

                                                    REGISTRATION NO. 333-
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------

                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549
                            ------------------------
                                    FORM S-4
                             REGISTRATION STATEMENT
                                     Under
                           THE SECURITIES ACT OF 1933
                            ------------------------
                    Issuer of Senior Notes registered hereby
                         ALLIANT ENERGY RESOURCES, INC.
             (Exact name of registrant as specified in its charter)
                            ------------------------

<TABLE>
<S>                                <C>                                <C>
            WISCONSIN                            6719                            39-1605561
 (State or other jurisdiction of     (Primary Standard Industrial      (I.R.S. Employer Identification
          incorporation)              Classification Code Number)                   No.)
</TABLE>

                                 ALLIANT TOWER
                              200 FIRST STREET SE
                            CEDAR RAPIDS, IOWA 52401
                                 (319) 398-4411
  (Address, including zip code, and telephone number, including area code, of
                   registrant's principal executive offices)

                  Guarantor of Senior Notes registered hereby
                           ALLIANT ENERGY CORPORATION
            (Exact name of registration as specified in its charter)

<TABLE>
<S>                                <C>                                <C>
            WISCONSIN                            6719                            39-1380265
 (State or other jurisdiction of     (Primary Standard Industrial      (I.R.S. Employer Identification
          incorporation)              Classification Code Number)                   No.)
</TABLE>

                           222 WEST WASHINGTON AVENUE
                            MADISON, WISCONSIN 53703
                                 (608) 252-3311
  (Address, including zip code, and telephone number, including area code, of
                   registrant's principal executive offices)

<TABLE>
<S>                                                  <C>
                 EDWARD M. GLEASON                                       Copies to:
 VICE PRESIDENT-TREASURER AND CORPORATE SECRETARY               BENJAMIN F. GARMER, III, ESQ.
          ALLIANT ENERGY RESOURCES, INC.                               FOLEY & LARDNER
            ALLIANT ENERGY CORPORATION                            777 EAST WISCONSIN AVENUE
            222 WEST WASHINGTON AVENUE                           MILWAUKEE, WISCONSIN 53202
             MADISON, WISCONSIN 53703                                  (414) 271-2400
                  (608) 252-3311
 (Name, address, including zip code, and telephone
                      number,
    including area code, of agent for service)
</TABLE>

                            ------------------------
    APPROXIMATE DATE OF COMMENCEMENT OF PROPOSED SALE TO THE PUBLIC: Upon
consummation of the Exchange Offer referred to herein.

    If the securities being registered on this Form are being offered in
connection with the formation of a holding company and there is compliance with
General Instruction G, check the following box.  [ ]

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

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

<TABLE>
<CAPTION>
- -------------------------------------------------------------------------------------------------------------------------
- -------------------------------------------------------------------------------------------------------------------------
                                                             PROPOSED MAXIMUM       PROPOSED MAXIMUM
        TITLE OF EACH CLASS OF            AMOUNT TO BE        OFFERING PRICE           AGGREGATE            AMOUNT OF
      SECURITIES TO BE REGISTERED          REGISTERED          PER UNIT(1)           OFFERING PRICE     REGISTRATION FEE
- -------------------------------------------------------------------------------------------------------------------------
<S>                                     <C>               <C>                    <C>                    <C>
7 3/8% New Senior Notes due 2009(2)....   $250,000,000             100%               $250,000,000           $66,000
- -------------------------------------------------------------------------------------------------------------------------
Guarantees for the New Senior Notes due
  2009(3)..............................        --                   --                     --                  --
- -------------------------------------------------------------------------------------------------------------------------
- -------------------------------------------------------------------------------------------------------------------------
</TABLE>

(1) Estimated solely for purposes of determining the registration fee.
(2) Calculated pursuant to Rule 457(f) under the Securities Act of 1933.
(3) Pursuant to Rule 457(n) under the Securities Act of 1933, no registration
    fee is required with respect to the guarantees.
                            ------------------------
    THE REGISTRANTS HEREBY AMEND THIS REGISTRATION STATEMENT ON SUCH DATE OR
DATES AS MAY BE NECESSARY TO DELAY ITS EFFECTIVE DATE UNTIL THE REGISTRANTS
SHALL FILE A FURTHER AMENDMENT WHICH SPECIFICALLY STATES THAT THIS REGISTRATION
STATEMENT SHALL THEREAFTER BECOME EFFECTIVE IN ACCORDANCE WITH SECTION 8(A) OF
THE SECURITIES ACT OF 1933 OR UNTIL THE REGISTRATION STATEMENT SHALL BECOME
EFFECTIVE ON SUCH DATE AS THE COMMISSION, ACTING PURSUANT TO SAID SECTION 8(A),
MAY DETERMINE.

- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
<PAGE>   2

     THE INFORMATION IN THIS PROSPECTUS IS NOT COMPLETE AND MAY BE CHANGED. WE
     MAY NOT SELL THESE SECURITIES UNTIL THE REGISTRATION STATEMENT FILED WITH
     THE SECURITIES AND EXCHANGE COMMISSION IS EFFECTIVE. THIS PROSPECTUS IS NOT
     AN OFFER TO SELL THESE SECURITIES AND IT IS NOT SOLICITING AN OFFER TO BUY
     THESE SECURITIES IN ANY STATE WHERE THE OFFER OR SALE IS NOT PERMITTED.

                 SUBJECT TO COMPLETION, DATED DECEMBER 16, 1999

   [ALLIANT ENERGY RESOURCES, INC. LOGO]

                         ALLIANT ENERGY RESOURCES, INC.
                               OFFER TO EXCHANGE
                                ALL OUTSTANDING
                          7 3/8% SENIOR NOTES DUE 2009
                  ($250,000,000 PRINCIPAL AMOUNT OUTSTANDING)
                                      FOR
                        NEW 7 3/8% SENIOR NOTES DUE 2009
                        ($250,000,000 PRINCIPAL AMOUNT)

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

- -  We are offering to exchange new registered 7 3/8% Senior Notes due 2009 for
   all of our outstanding unregistered 7 3/8% Senior Notes due 2009.

- -  The exchange offer expires at 5:00 p.m., New York City time, on
                , 2000, unless we extend it.

- -  The terms of the new senior notes are substantially identical to those of the
   existing senior notes, except that the new senior notes will not have
   securities law transfer restrictions and registration rights relating to the
   existing senior notes and the new senior notes will not provide for the
   payment of additional interest under circumstances relating to the timing of
   the exchange offer.

- -  The exchange offer is not subject to any condition other than that the
   exchange offer not violate applicable law or applicable interpretation of the
   staff of the SEC and certain other conditions.

- -  All outstanding senior notes that are validly tendered and not validly
   withdrawn will be exchanged.

- -  You may withdraw your tender of existing senior notes any time before the
   exchange offer expires.

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

- -  The exchange of senior notes will not be a taxable event for U.S. federal
   income tax purposes.

   Neither the Securities and Exchange Commission nor any state securities
commission has approved or disapproved of these securities or determined if this
prospectus is truthful or complete. Any representation to the contrary is a
criminal offense.

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

              The date of this prospectus is              , 1999.
<PAGE>   3

<PAGE>   4

                               TABLE OF CONTENTS

<TABLE>
<CAPTION>
                                                                PAGE
                                                                ----
<S>                                                             <C>
Where You Can Find More Information.........................       3
Forward-Looking Statements..................................       4
Prospectus Summary..........................................       5
Use of Proceeds.............................................      13
Capitalization..............................................      13
Business....................................................      14
Management..................................................      17
Description of Outstanding Indebtedness.....................      20
The Exchange Offer..........................................      21
Description of the New Senior Notes.........................      29
United States Federal Income Tax Considerations.............      43
Plan of Distribution........................................      45
Legal Matters...............................................      46
Experts.....................................................      46
</TABLE>

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

                      WHERE YOU CAN FIND MORE INFORMATION

     Alliant Energy Corporation, our parent corporation and the guarantor of the
senior notes, files annual, quarterly and current reports, proxy statements and
other information with the SEC. You may read and copy any document which Alliant
Energy Corporation files at the SEC's public reference rooms at 450 Fifth
Street, N.W., Washington D.C., and at regional SEC offices in Chicago, Illinois
and New York, New York. You can call the SEC at 1-800-SEC-0330 for further
information on the operation of the public reference rooms. You can also find
Alliant Energy Corporation's public filings with the SEC on the internet at a
website maintained by the SEC located at http://www.sec.gov.

     We are "incorporating by reference" specified documents that Alliant Energy
Corporation files with the SEC, which contain important business and financial
information not included in or delivered with this prospectus. "Incorporating by
reference" means:

     -  incorporated documents are considered part of this prospectus;

     -  we are disclosing important information to you by referring you to those
        documents; and

     -  information Alliant Energy Corporation files with the SEC will
        automatically update and supersede information contained in this
        offering memorandum.

     We incorporate by reference the documents we list below and any future
filings Alliant Energy Corporation makes with the SEC under Sections 13(a),
13(c), 14 or 15(d) of the Securities Exchange Act of 1934 after the date of this
prospectus and before the end of the exchange offer:

     -  Alliant Energy Corporation's Annual Report on Form 10-K for the year
        ended December 31, 1998, as amended by Alliant Energy Corporation's Form
        10-K/A filed November 1, 1999;

     -  Alliant Energy Corporation's Reports on Form 10-Q for the quarters ended
        March 31, 1999 and June 30, 1999, each as amended by Alliant Energy
        Corporation's Form 10-Q/As filed on November 1, 1999, and Alliant Energy
        Corporation's Report on Form 10-Q for the quarter ended September 30,
        1999; and

     -  Alliant Energy Corporation's Current Reports on Form 8-K, both dated
        January 20, 1999.

     YOU MAY REQUEST A COPY OF ANY OF THESE FILINGS (INCLUDING EXHIBITS), AT NO
COST, BY WRITING TO EDWARD M. GLEASON, VICE PRESIDENT-TREASURER AND CORPORATE
SECRETARY, ALLIANT ENERGY CORPORATION, 222 WEST WASHINGTON AVENUE, MADISON,
WISCONSIN 53703, OR BY CALLING MR. GLEASON AT (608) 252-3311. TO OBTAIN

                                        3
<PAGE>   5

TIMELY DELIVERY OF ANY OF THIS INFORMATION, YOU MUST MAKE YOUR REQUEST AT LEAST
FIVE BUSINESS DAYS PRIOR TO THE EXPIRATION OF THE EXCHANGE OFFER. THE DATE BY
WHICH YOU MUST MAKE YOUR REQUEST IS           , 2000.

     You should rely only on the information contained or incorporated by
reference in this document or to which we have referred you. We have not
authorized any other person to provide you with different information. This
prospectus may only be used where it is legal to sell these securities. You
should assume that the information contained or incorporated by reference in
this document is accurate as of the date on the front cover of the prospectus
only. Our and Alliant Energy Corporation's business, financial condition,
results of operations and prospects may have changed since that date.

                           FORWARD-LOOKING STATEMENTS

     This prospectus (including the information we incorporate by reference)
contains forward-looking statements that are not of historical fact and are
statements intended to qualify for the safe harbors from liability established
by the Private Securities Litigation Reform Act of 1995. From time to time, we
or Alliant Energy Corporation may make other forward-looking statements within
the meaning of the federal securities laws that involve judgments, assumptions
and other uncertainties beyond our control. These forward-looking statements may
include, among others, statements concerning revenue and cost trends, cost
recovery, cost reduction strategies and anticipated outcomes, pricing
strategies, changes in the utility industry, planned capital expenditures,
financing needs and availability, statements of expectations, beliefs, future
plans and strategies, anticipated events or trends and similar comments
concerning matters that are not historical facts. You are cautioned that these
statements are not a guarantee of future performance and that these
forward-looking statements are subject to risks and uncertainties that could
cause actual results to differ materially from those expressed in, or implied
by, these statements. Some, but not all, of the risks and uncertainties include:

     -  weather effects on sales and revenues,

     -  competitive factors,

     -  general economic conditions in the relevant service territory,

     -  federal and state regulatory or government actions, including the
        deregulation of the utility industry,

     -  unanticipated construction and acquisition expenditures,

     -  issues related to stranded costs and their recovery,

     -  the operations of Alliant Energy Corporation's nuclear facilities,

     -  unanticipated issues or costs associated with achieving Year 2000
        compliance,

     -  unanticipated costs associated with certain environmental remediation
        efforts being undertaken by Alliant Energy Corporation,

     -  material changes in the value of our investment in McLeodUSA
        Incorporated,

     -  technological developments,

     -  employee workforce factors, including changes in key executives,
        collective bargaining agreements or work stoppages,

     -  political, legal and economic conditions in foreign countries Alliant
        Energy Corporation has investments in, and

     -  changes in the rate of inflation.

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

     In this prospectus, "we," "us" and "our" refer to Alliant Energy Resources,
Inc.

                                        4
<PAGE>   6

                               PROSPECTUS SUMMARY

     The following summary highlights selected information from this prospectus
and may not contain all of the information that is important to you. This
prospectus includes the specific terms of the new senior notes we are offering,
as well as information regarding our business. We encourage you to read this
prospectus in its entirety.

                         ALLIANT ENERGY RESOURCES, INC.

OVERVIEW

     We are a wholly-owned subsidiary of Alliant Energy Corporation, which is a
registered public utility holding company. We manage a portfolio of companies
involved in non-regulated businesses. These businesses include providing energy
and environmental services, energy generation and infrastructure in growing
domestic and international markets, products and services to meet the needs of
residential and small commercial customers, electricity marketing and risk
management services to wholesale customers, transportation services, and
financing for affordable housing developments. Our primary subsidiaries include
Alliant Energy Investments, Inc.; Alliant Energy International, Inc.; and
Alliant Energy Industrial Services, Inc. Alliant Energy Corporation also has a
50% ownership interest in a joint venture with Cargill Incorporated, named
Cargill-Alliant LLC.

     Set forth below is a condensed organization chart that reflects how our and
Alliant Energy Corporation's businesses and investments are managed:

                                  [FLOW CHART]

     Our principal executive offices are located at Alliant Tower, 200 First
Street SE, Cedar Rapids, Iowa 52401, telephone number (319) 398-4411.

STRATEGY

     As competitive forces shape the energy-services industry, energy providers
are being challenged to increase growth and profits. Because we expect
consumption of electricity and natural gas to grow only modestly within Alliant
Energy Corporation's domestic utility service territory, we have entered several
energy-services markets that we expect will provide opportunities for new
sources of growth. We have

                                        5
<PAGE>   7

established new distinct platforms to complement our existing non-regulated
investments, which are designed to meet customer needs. These platforms and
existing investments include:

     - Investments: Our existing investments include an oil and gas production
       company, a short-line railroad, a barge company, an affordable housing
       company, various real estate joint ventures and an equity stake in an
       independent telecommunications provider.

     - International: We are a partner in developing, or are seeking to develop,
       energy generation and infrastructure in New Zealand, Australia, China,
       Mexico and Brazil, markets which we have selected because of their growth
       potential.

     - Industrial Services: We are a provider of energy and environmental
       services designed to maximize productivity for industrial and large
       commercial customers.

     - Cargill-Alliant: Alliant Energy Corporation has an energy-trading joint
       venture with Cargill Incorporated, one of the world's largest and most
       established commodity trading firms, that combines the risk-management
       and commodity trading expertise of Cargill with Alliant Energy
       Corporation's low-cost electricity generation and transmission business
       experience.

     - Mass Markets: We are a provider of a growing array of products and
       services designed to meet the comfort, security and productivity needs of
       residential and small commercial customers.

                           ALLIANT ENERGY CORPORATION

     Alliant Energy Corporation was formed as a result of a three-way merger
involving WPL Holdings, Inc., IES Industries Inc. and Interstate Power Company.
The merger was completed in April 1998. The first tier subsidiaries of Alliant
Energy Corporation include Wisconsin Power and Light Company, IES Utilities
Inc., Interstate Power Company, Alliant Energy Resources, Inc. and Alliant
Energy Corporate Services, Inc.

     Alliant Energy Corporation, through its public utility operating companies,
Wisconsin Power and Light Company, IES Utilities Inc. and Interstate Power
Company, is engaged principally in:

     -  the generation, transmission, distribution and sale of electric energy;

     -  the purchase, distribution, transportation and sale of natural gas; and

     -  the provision of water and steam services in selected markets.

The principal markets of Alliant Energy Corporation's utility operating
subsidiaries are located in Iowa, Wisconsin, Minnesota and Illinois. Alliant
Energy Corporation is also involved in several non-regulated and non-utility
activities through our company.

     Alliant Energy Corporation, a public utility holding company incorporated
in Wisconsin in 1981, has its principal executive offices located at 222 West
Washington Avenue, Madison, Wisconsin 53703, telephone number (608) 252-3311.

                               THE EXCHANGE OFFER

Existing Senior Notes......  We sold $250,000,000 of our 7 3/8% Senior Notes due
                             2009, which are unconditionally guaranteed by
                             Alliant Energy Corporation, to the initial
                             purchasers on November 9, 1999. The initial
                             purchasers resold those senior notes (the "existing
                             senior notes") to qualified institutional buyers
                             pursuant to Rule 144A under the Securities Act of
                             1933.

Registration Rights
Agreement..................  When we sold the existing senior notes we entered
                             into a registration rights agreement with the
                             initial purchasers in which we agreed, among other
                             things, to provide to you and all other holders of
                             these existing senior notes the opportunity to
                             exchange your unregistered
                                        6
<PAGE>   8

                             existing senior notes for a new series of
                             substantially identical new senior notes that we
                             have registered under the Securities Act. This
                             exchange offer is being made for that purpose.

New Senior Notes...........  We are offering registered 7 3/8% Senior Notes due
                             2009, which are unconditionally guaranteed by
                             Alliant Energy Corporation (the "new senior
                             notes"), in exchange for your existing senior
                             notes. The terms of the new senior notes and the
                             existing senior notes are substantially identical
                             except:

                             -  the new senior notes will be issued in a
                                transaction that will have been registered under
                                the Securities Act;

                             -  the new senior notes will not contain securities
                                law restrictions on transfer; and

                             -  the new senior notes will not provide for the
                                payment of additional interest under
                                circumstances relating to the timing of the
                                exchange offer.

The Exchange Offer.........  We are offering to exchange $1,000 principal amount
                             of the new senior notes for each $1,000 principal
                             amount of your existing senior notes. As of the
                             date of this prospectus, $250,000,000 aggregate
                             principal amount of the existing senior notes are
                             outstanding. For procedures for tendering, see "The
                             Exchange Offer -- Procedures for Tendering Existing
                             Senior Notes"

Expiration Date............  This exchange offer will expire at 5:00 p.m., New
                             York City time, on             , 2000, unless we
                             extend it.

Resales of New Senior
Notes......................  We believe that you may resell or otherwise
                             transfer the new senior notes received in the
                             exchange offer without complying with the
                             registration and prospectus delivery provisions of
                             the Securities Act so long as you are not a
                             broker-dealer and you meet the following
                             conditions:

                             -  you are not our "affiliate" within the meaning
                                of Rule 405 under the Securities Act;

                             -  you acquire the new senior notes issued in the
                                exchange offer in the ordinary course of your
                                business; and

                             -  you have no arrangement or understanding with
                                any person to participate in the distribution of
                                the new senior notes.

                             By signing the letter of transmittal and tendering
                             your existing senior notes, you will be making
                             representations to this effect. You may incur
                             liability under the Securities Act if:

                             -  any of the representations listed above are not
                                true; and

                             -  you transfer any new senior note issued to you
                                in the exchange offer without either delivering
                                a prospectus meeting the requirements of the
                                Securities Act or qualifying for an exemption
                                from the registration requirements under the
                                Securities Act.

                             We do not assume or indemnify you against liability
                             under these circumstances, which means that we will
                             not protect you against any loss incurred as a
                             result of this liability under the Securities Act.

                                        7
<PAGE>   9

                             Each broker-dealer that has received new senior
                             notes for its own account in exchange for existing
                             senior notes that were acquired as a result of
                             market-making or other trading activities must
                             acknowledge that it will deliver a prospectus
                             meeting the requirements of the Securities Act in
                             connection with any resale of the new senior notes.
                             A broker-dealer generally may use this prospectus
                             in connection with any such resale. See "The
                             Exchange Offer -- Resales of New Senior Notes."

Acceptance of Existing
Senior Notes and Delivery
  of New Senior Notes......  We will accept for exchange any and all existing
                             senior notes that are validly tendered in the
                             exchange offer and not withdrawn before the offer
                             expires. The new senior notes will be delivered
                             promptly following the exchange offer.

Withdrawal Rights..........  You may withdraw your tender of existing senior
                             notes at any time before the exchange offer
                             expires.

Conditions of the Exchange
Offer......................  The exchange offer is subject to certain
                             conditions, which we may waive.

Consequences of Failure to
  Exchange.................  If you are eligible to participate in the exchange
                             offer and you do not tender your existing senior
                             notes, then you will not have further exchange or
                             registration rights and you will continue to hold
                             existing senior notes subject to restrictions on
                             transfer.

Federal Income Tax
  Consequences.............  The exchange of an existing senior note for a new
                             senior note will not be taxable to a United States
                             holder for federal income tax purposes.
                             Consequently, you will not recognize any gain or
                             loss upon receipt of the new senior notes. See
                             "United States Federal Income Tax Consequences."

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

Accounting Treatment.......  We will not recognize any gain or loss on the
                             exchange of senior notes. See "The Exchange
                             Offer -- Accounting Treatment."

Exchange Agent.............  Firstar Bank, N.A. is the exchange agent. See "The
                             Exchange Offer -- Exchange Agent."

                              THE NEW SENIOR NOTES

     The new senior notes will evidence the same debt as the existing senior
notes and will be governed by the same indenture, as supplemented, under which
the existing senior notes were issued.

TERMS OF THE NEW SENIOR NOTES

Aggregate Principal
Amount.....................  Up to $250,000,000.

Interest Rate..............  7 3/8% per year.

Maturity Date..............  November 9, 2009.

Interest Payment Dates.....  May 9 and November 9 of each year, beginning May 9,
                             2000.

                                        8
<PAGE>   10

Interest Calculations......  Based on a 360-day year of twelve 30-day months.

Parent Company Guarantee...  Our parent, Alliant Energy Corporation, will
                             unconditionally guarantee the new senior notes. The
                             guarantee will be equal in right of payment with
                             all other unsecured indebtedness and guarantees
                             issued by our parent.

Ranking....................  The new senior notes will rank equally with all of
                             our other unsecured and unsubordinated
                             indebtedness.

Optional Redemption........  The new senior notes will be redeemable in whole or
                             in part at our option at any time, on at least 30
                             days' but not more than 60 days' prior written
                             notice at a price equal to the greater of (a) 100%
                             of the principal amount of the new senior notes
                             being redeemed and (b) the sum of the present
                             values of the principal amount of the new senior
                             notes to be redeemed and the remaining scheduled
                             payments of interest on the new senior notes from
                             the redemption date to November 9, 2009, discounted
                             from their respective scheduled payment dates to
                             the redemption date semi-annually (assuming a
                             360-day year consisting of twelve 30-day months) at
                             a discount rate equal to the Treasury Yield (as
                             defined under "Description of the New Senior
                             Notes -- Optional Redemption") plus 20 basis
                             points, plus accrued interest on the senior notes
                             to the redemption date. See "Description of the New
                             Senior Notes -- Optional Redemption."

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

Form and Denominations.....  The new senior notes initially will be issued in
                             fully registered book-entry form and will be
                             represented by one or more registered global
                             securities deposited with or on behalf of, and
                             registered in the name of, a nominee of The
                             Depository Trust Company. The new senior notes will
                             be issued in denominations of $1,000 and integral
                             multiples thereof.

Absence of Market for the
Notes......................  The new senior notes are a new issue of securities
                             with no established trading market. We currently
                             have no intention to apply to list the new senior
                             notes on any securities exchange or to seek their
                             admission to trading on any automated quotation
                             system. Accordingly, there can be no assurance as
                             to the development or liquidity of any market for
                             the new senior notes.

GENERAL INDENTURE PROVISIONS APPLICABLE TO THE NEW SENIOR NOTES

No Limit on Debt...........  The indenture governing the new senior notes does
                             not limit the amount of debt that we may issue or
                             provide holders any protection should we be
                             involved in a highly leveraged transaction.

Certain Covenants..........  The indenture contains covenants that, among other
                             things, will limit our ability and that of our
                             subsidiaries and, for some limited matters, Alliant
                             Energy Corporation to:

                             -  issue, assume or guarantee certain additional
                                secured indebtedness;

                             -  engage in sale and lease-back transactions; and

                             -  consolidate or merge.

                                        9
<PAGE>   11

                             These covenants are subject to important exceptions
                             and qualifications, which are described under the
                             heading "Description of the New Senior
                             Notes -- Covenants" in this prospectus.

Events of Default..........  Each of the following is an event of default under
                             the indenture:

                             -  the failure by us or Alliant Energy Corporation
                                to pay principal of or premium, if any, on the
                                senior notes when due;

                             -  the failure by us or Alliant Energy Corporation
                                for 30 days to pay interest when due on the
                                senior notes;

                             -  the failure by us or Alliant Energy Corporation
                                to perform other covenants with respect to the
                                senior notes following 90 days after receipt of
                                notice of failure; and

                             -  certain events of bankruptcy, insolvency or
                                reorganization of us or Alliant Energy
                                Corporation.

                             These covenants are subject to important exceptions
                             and qualifications, which are described under the
                             heading "Description of the New Senior
                             Notes -- Events of Default" in this prospectus.

Remedies...................  If any event of default occurs and is continuing,
                             the trustee under the indenture or holders of at
                             least 25% in aggregate principal amount of
                             outstanding senior notes may declare the principal
                             thereof immediately due and payable.

Other......................  The new senior notes and the existing senior notes
                             will vote together as a single class for purposes
                             of determining whether the holders of the requisite
                             percentage in outstanding principal amount have
                             taken certain actions or exercised certain rights
                             under the indenture.

                                       10
<PAGE>   12

                         SUMMARY FINANCIAL INFORMATION

ALLIANT ENERGY RESOURCES, INC.

     The following table sets forth our unaudited summary consolidated financial
information. The information set forth below was derived from Alliant Energy
Corporation's financial statements and notes. The unaudited interim period
financial information, in our opinion, includes all adjustments, which are
normal and recurring in nature, necessary for a fair presentation for the
periods shown. Results for the nine months ended September 30, 1999 are not
necessarily indicative of results to be expected for the full fiscal year.

<TABLE>
<CAPTION>
                                               NINE MONTHS ENDED
                                                 SEPTEMBER 30,            YEAR ENDED DECEMBER 31,
                                              --------------------    --------------------------------
                                                1999        1998        1998        1997        1996
                                              --------    --------    --------    --------    --------
                                                                   (IN THOUSANDS)
<S>                                           <C>         <C>         <C>         <C>         <C>
INCOME STATEMENT DATA:
Operating revenues........................    $202,863    $177,269    $238,676    $361,961    $393,963
Operating income (loss)...................         296      (5,533)     (8,608)     (6,818)     (6,666)
Income (loss) from continuing operations
  before discontinued operations..........      27,013(1)   (8,142)     (8,898)     (3,966)     (1,851)
Net income (loss).........................      27,013(1)   (8,142)     (8,898)     (3,966)     (3,148)
</TABLE>

<TABLE>
<CAPTION>
                                                           SEPTEMBER 30,             DECEMBER 31,
                                                       ----------------------    --------------------
                                                          1999         1998        1998        1997
                                                       ----------    --------    --------    --------
                                                                       (IN THOUSANDS)
<S>                                                    <C>           <C>         <C>         <C>
BALANCE SHEET DATA:
Current assets.....................................    $  104,745    $ 87,994    $ 92,148    $ 92,703
Non-current assets(2)..............................     1,381,858     662,116     777,113     745,801
Current liabilities................................        52,605      53,402      63,648     101,399
Non-current liabilities (excludes minority
  interest)........................................       370,508     108,372     160,278     153,872
Minority interest(3)...............................         7,138       6,633       6,193       5,446
</TABLE>

- ---------------
(1) Includes after-tax gains of $21 million from the sale of a portion of our
    investment in McLeodUSA Incorporated.

(2) Includes the market value of McLeodUSA Incorporated of $818 million at
    September 30, 1999, $223 million at September 30, 1998, $320 million at
    December 31, 1998 and $328 million at December 31, 1997.

(3) Minority interest represents primarily real estate joint ventures.

                                       11
<PAGE>   13

ALLIANT ENERGY CORPORATION

     The following table sets forth selected consolidated financial information
of Alliant Energy Corporation. The information set forth below was selected or
derived from the financial statements and notes of Alliant Energy Corporation.
The unaudited interim period financial information, in the opinion of Alliant
Energy Corporation, includes all adjustments, which are normal and recurring in
nature, necessary for a fair presentation for the periods shown. Results for the
nine months ended September 30, 1999 are not necessarily indicative of results
to be expected for the full fiscal year. The information set forth below is
qualified in its entirety by and should be read in conjunction with the Alliant
Energy Corporation Management's Discussion and Analysis of Financial Condition
and Results of Operations and the detailed information and consolidated
financial statements, including the notes thereto, incorporated by reference in
this prospectus. See "Where You Can Find More Information."

<TABLE>
<CAPTION>
                           NINE MONTHS ENDED
                             SEPTEMBER 30,                           YEAR ENDED DECEMBER 31,
                        -----------------------   --------------------------------------------------------------
                           1999         1998       1998(1)        1997         1996         1995         1994
                        ----------   ----------   ----------   ----------   ----------   ----------   ----------
                                            (DOLLARS IN THOUSANDS EXCEPT FOR PER SHARE DATA)
<S>                     <C>          <C>          <C>          <C>          <C>          <C>          <C>
INCOME STATEMENT DATA:
Operating revenues....  $1,631,305   $1,602,608   $2,130,874   $2,300,627   $2,232,840   $1,976,807   $1,889,231
Operating income......     284,046      228,704      283,302      336,383      365,439      364,932      313,508
Income from continuing
  operations..........     151,784       71,481       96,675      144,578      157,088      159,157      147,064
Net income............     151,784       71,481       96,675      144,578      155,791      145,971      145,890
PER SHARE DATA:
Income from continuing
  operations..........       $1.94        $0.93        $1.26        $1.90        $2.08        $2.13        $1.99
Earnings per average
  common share (basic
  and diluted)........       $1.94        $0.93        $1.26        $1.90        $2.06        $1.95        $1.98
Dividends declared per
  common share(2).....       $1.50        $1.50        $2.00        $2.00        $1.97        $1.94        $1.92
BALANCE SHEET DATA:
Total assets..........  $5,597,245   $4,710,128   $4,959,337   $4,923,550   $4,639,826   $4,476,406   $4,269,637
Long-term obligations,
  net.................  $1,744,687   $1,664,665   $1,713,649   $1,604,305   $1,444,355   $1,357,755   $1,358,258
RATIO OF EARNINGS TO
  FIXED CHARGES.......        3.34         2.28         2.17         2.77         3.21         3.17         3.17
</TABLE>

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

(1) The 1998 financial results reflect the recording of $54 million of pre-tax
    merger charges.

(2) Represents data for WPL Holdings, Inc. prior to the three-way merger
    involving WPL Holdings, Inc., IES Industries Inc. and Interstate Power
    Company in April 1998.

                                       12
<PAGE>   14

                                USE OF PROCEEDS

     This exchange offer is intended to satisfy our obligations under the
registration rights agreement entered into in connection with the issuance of
the existing senior notes. We will not receive any cash proceeds from the
issuance of the new senior notes.

     The net proceeds from the sale of the existing senior notes were
approximately $247 million. We added the net proceeds from the sale of the
existing senior notes to our general funds. We expect to use our general funds
to repay commercial paper we issued in connection with the development and
acquisition of non-regulated businesses as it becomes due. To the extent we do
not use the net proceeds for repayment of commercial paper, we may also use the
net proceeds to fund our existing operations, including potential acquisitions.
We invested general funds not immediately used for these purposes or other
purposes in short-term instruments. At September 30, 1999, we had $329.5 million
of commercial paper outstanding and backed by our 3-Year Credit Agreement, with
a weighted-average maturity of 24.3 days and a weighted-average interest rate of
5.54%.

                                 CAPITALIZATION

     The following table sets forth the consolidated capitalization of Alliant
Energy Corporation (including us) as of September 30, 1999, and as adjusted to
give effect to the sale of the existing senior notes.

<TABLE>
<CAPTION>
                                                                   SEPTEMBER 30, 1999
                                                                ------------------------
                                                                  ACTUAL       ADJUSTED
                                                                ----------    ----------
                                                                     (IN THOUSANDS)
<S>                                                             <C>           <C>
Common stock................................................    $      787    $      787
Additional paid-in capital..................................       934,373       934,373
Retained earnings...........................................       572,035       572,035
Accumulated other comprehensive income......................       475,625       475,625
                                                                ----------    ----------
  Total common equity.......................................     1,982,820     1,982,820
                                                                ----------    ----------
Cumulative preferred stock of subsidiaries..................       113,604       113,604
Long-term debt (excluding current portion)..................     1,569,531     1,819,531
                                                                ----------    ----------
  Total capitalization......................................    $3,665,955    $3,915,955
                                                                ==========    ==========
</TABLE>

                                       13
<PAGE>   15

                                    BUSINESS

OVERVIEW

     We are a wholly-owned subsidiary of Alliant Energy Corporation, which is a
registered public utility holding company. We manage a portfolio of companies
involved in non-regulated businesses. These businesses include providing energy
and environmental services, energy generation and infrastructure in growing
domestic and international markets, products and services to meet the needs of
residential and small commercial customers, electricity marketing and risk
management services to wholesale customers, transportation services, and
financing for affordable housing developments. Our primary subsidiaries include
Alliant Energy Investments, Inc.; Alliant Energy International, Inc.; and
Alliant Energy Industrial Services, Inc. Alliant Energy Corporation also has a
50% ownership interest in a joint venture with Cargill Incorporated, named
Cargill-Alliant LLC.

     We were incorporated in Wisconsin in 1988 as Heartland Development
Corporation, a subsidiary of WPL Holdings, Inc. As part of a three-way merger
involving our parent in April 1998, we merged with IES Diversified Inc., the
holding company for the non-regulated businesses of the former IES Industries
Inc., to form Alliant Energy Resources, Inc. Our principal executive offices are
located at Alliant Tower, 200 First Street SE, Cedar Rapids, Iowa 52401,
telephone number (319) 398-4411.

STRATEGY

     As competitive forces shape the energy-services industry, energy providers
are being challenged to increase growth and profits. Because we expect
consumption of electricity and natural gas to grow only modestly within Alliant
Energy Corporation's domestic utility service territory, we have entered several
energy-services markets that we expect will provide opportunities for new
sources of growth. We have established new distinct platforms to complement our
existing non-regulated investments, which are designed to meet customer needs.
These platforms and existing investments include:

     -  Investments:  Our existing investments include an oil and gas production
        company, a short-line railroad, a barge company, an affordable housing
        company, various real estate joint ventures and an equity stake in an
        independent telecommunications provider.

     -  International:  We are a partner in developing, or are seeking to
        develop, energy generation and infrastructure in New Zealand, Australia,
        China, Mexico and Brazil, markets which we have selected because of
        their growth potential. We continued our expansion in 1998 by making a
        strategic investment in Peak Pacific Investment Company PTE Ltd., an
        energy development firm based in Singapore and active in China. Peak
        Pacific broke ground on a new power plant in 1999 near Zhengding. We are
        similarly seeking to expand our New Zealand presence and have recently
        entered the Australian energy market. We are also seeking opportunities
        in the South American energy marketplace.

     -  Industrial Services:  We are a provider of energy and environmental
        services designed to maximize productivity for industrial and large
        commercial customers. We created Alliant Energy Industrial Services in
        1998 by combining two new units -- Energy Planning and Energy Management
        -- with two established businesses: Energy Applications, which provides
        facilities-based and commodities-based energy solutions; and RMT, Inc.,
        an environmental-management and engineering firm with offices throughout
        the United States and the United Kingdom. We believe these four
        components comprise an industrial services company with expertise that
        customers find valuable.

     -  Cargill-Alliant:  Alliant Energy Corporation has an energy-trading joint
        venture with Cargill Incorporated, one of the world's largest and most
        established commodity trading firms, that combines the risk-management
        and commodity trading expertise of Cargill with Alliant Energy
        Corporation's low-cost electricity generation and transmission business
        experience. Cargill-Alliant LLC officially began operations in 1997 and
        has an initial term through October 2002.

                                       14
<PAGE>   16

     -  Mass Markets:  We are a provider of a growing array of products and
        services designed to meet the comfort, security and productivity needs
        of residential and small commercial customers. We continue to pursue
        opportunities in a growing residential and small commercial marketplace.

PRINCIPAL OPERATIONS

     We conduct our operations through our principal subsidiaries and
investments, which are engaged in the businesses described below:

     Investments:  Our subsidiaries and investments include Whiting Petroleum
Corporation, Alliant Energy Transportation, Inc. and Alliant Energy Investments,
Inc., which is a holding company whose primary subsidiaries include Heartland
Properties, Inc. and Capital Square Financial Corporation and which holds an
equity stake in McLeodUSA Incorporated. Alliant Energy Investments also has
direct and indirect equity interests in various real estate and economic
development ventures, primarily concentrated in Iowa.

     -  Whiting Petroleum is based in Denver, Colorado and was organized to
        purchase, develop and produce crude oil and natural gas. Whiting
        Petroleum's construction and acquisition expenditures were approximately
        $60 million in 1998 and are anticipated to be approximately $35 million
        in 1999.

     -  Alliant Energy Transportation is a holding company whose equity
        investments total $20 million as of September 30, 1999 and include the
        Cedar Rapids and Iowa City Railway Company, a short-line railway, which
        renders freight service between Cedar Rapids and Iowa City, Transfer
        Services, Inc., which provides transloading and storage services, and a
        75% equity investment in IEI Barge Services Inc., which provides barge
        terminal and hauling services on the Mississippi River.

     -  Heartland Properties, formed in 1988, is responsible for performing
        asset management and facilitating the development and financing of high
        quality, affordable housing in Wisconsin and the Midwest. Heartland
        Properties has a majority ownership interest in 60 properties.

     -  Capital Square was incorporated in 1992 to provide mortgage banking
        services to facilitate Heartland Properties' development and financing
        efforts in the affordable housing market.

     -  We also hold an equity interest of approximately 11% in McLeodUSA
        Incorporated. McLeodUSA is an independent telecommunications provider
        based in Cedar Rapids, Iowa. Our investment in McLeodUSA had a market
        value of approximately $818 million as of September 30, 1999 (based on a
        closing price of $42.5625 per share and compared to a cost basis of
        approximately $30 million). Alliant Energy Investments is a party to a
        stockholders' agreement that provides, subject to certain exceptions,
        that it may not sell any equity securities of McLeodUSA until December
        31, 2001 without the consent of the Board of Directors of McLeodUSA.

     International:  Our international operations include Alliant Energy
International, Inc., a holding company whose primary investments include Alliant
International New Zealand Limited, Alliant Energy Australia Pty Ltd., Interstate
Energy Corporation Pte. Ltd., Grandelight Holdings Ltd., Alliant Energy de
Mexico L.L.C. and Alliant Energy Brazil, Inc.

     -  Alliant International New Zealand has made equity investments in several
        New Zealand utility entities since 1995, which totaled $111 million as
        of September 30, 1999. As a result of electricity reforms since 1995,
        several utility companies exited generation and retail businesses. As
        part of its strategy to enter the generation and retail markets, Alliant
        International New Zealand sold all of its interest in Central Power
        Limited and a portion of its interest in Powerco Limited, each of which
        were electricity distribution companies. Alliant International New
        Zealand has a 10% interest in Infrastructure and Utilities NZ Ltd
        ("Infratil NZ"), a holding company for infrastructure and utility
        businesses in New Zealand. Together with Infratil NZ, Alliant
        International New Zealand intends to increase its interest in
        TrustPower, an electricity generation and retail company, from the
        current level of 41%.

                                       15
<PAGE>   17

     -  In October 1999, Alliant Energy Australia acquired a 10% equity interest
        in Infratil Australia Limited, a holding company for infrastructure and
        utility businesses in Australia. Alliant Energy Australia expects to
        close on the acquisition of a 22% equity interest in Southern Hydro, a
        hydro-electricity generation business, in late December 1999.

     -  As of September 30, 1999, Alliant Energy International has invested $61
        million in investments in China, which consist of an equity investment
        of $26 million in two individual cogeneration facilities in China and an
        equity investment of $35 million in Peak Pacific Investment Company PTE
        Ltd. Peak Pacific was formed to develop investment opportunities in
        generation infrastructure projects in China. In addition, we have
        commitments of an additional $12 million to invest in China as of
        September 30, 1999.

     -  Alliant Energy de Mexico owns two subsidiaries incorporated in Mexico
        that have entered into agreements to operate the electrical distribution
        facilities serving a resort community known as Laguna del Mar, located
        in Puerto Penasco, Sonora, Mexico. As of September 30, 1999, Alliant
        Energy International's investment consisted of $9 million in secured
        debentures of Laguna del Mar.

     -  Alliant Energy Brazil was formed for the purposes of making investments
        in Brazil. Several opportunities have arisen as a result of the
        Brazilian government's privatization of the electricity sector. Alliant
        Energy Brazil continues to examine opportunities in electricity
        generation and distribution arising as a result of the privatization.

     Industrial Services:  Our industrial services include Alliant Energy
Industrial Services, Inc., a holding company whose primary wholly-owned
subsidiaries include Industrial Energy Applications, Inc. and RMT, Inc.

     -  Industrial Energy Applications offers to its customers commodities-based
        energy services, such as supplying natural gas and electricity, and
        facilities-based energy services, including standby generation,
        cogeneration, steam production and propane air systems. It also provides
        energy consulting services for customers and owns two oil and natural
        gas gathering systems in Texas.

     -  RMT is a Madison, Wisconsin-based environmental and engineering
        consulting company that serves clients nationwide in a variety of
        industrial market segments. The most significant of these markets are
        chemical companies, pulp and paper processors, oil and gas providers,
        foundries and other manufacturers. RMT specializes in consulting on
        solid and hazardous waste management, ground water quality protection,
        industrial design and hygiene engineering, and air and water pollution
        control.

                                       16
<PAGE>   18

                                   MANAGEMENT

     The following table sets forth information as of September 30, 1999,
concerning our executive officers and directors. Except as otherwise indicated,
each executive officer and director has been engaged in his or her present
office or occupation for at least the past five years.

<TABLE>
<CAPTION>
NAME                                        AGE                          TITLE
- ----                                        ---                          -----
<S>                                         <C>    <C>
Erroll B. Davis, Jr.......................  55     Chief Executive Officer and Director
James E. Hoffman..........................  46     President
Thomas L. Aller...........................  50     Vice President -- Alliant Energy Investments
Charles Castine...........................  50     Vice President -- Industrial Services
John K. Peterson..........................  47     Vice President -- International
John E. Ebright...........................  56     Vice President -- Controller
Edward M. Gleason.........................  59     Vice President -- Treasurer and Corporate
                                                   Secretary
Linda J. Wentzel..........................  51     Assistant Corporate Secretary
Enrique Bacalao...........................  50     Assistant Treasurer
Steven F. Price...........................  47     Assistant Treasurer
Robert A. Rusch...........................  37     Assistant Treasurer
Daniel L. Siegfried.......................  39     Assistant Corporate Secretary
Alan B. Arends............................  66     Director
Rockne G. Flowers.........................  68     Director
Joyce L. Hanes............................  67     Director
Lee Liu...................................  66     Director
Katherine C. Lyall........................  58     Director
Arnold M. Nemirow.........................  56     Director
Milton E. Neshek..........................  69     Director
Jack R. Newman............................  66     Director
Judith D. Pyle............................  56     Director
Robert D. Ray.............................  71     Director
Robert W. Schlutz.........................  64     Director
Wayne H. Stoppelmoor......................  65     Director
Anthony R. Weiler.........................  63     Director
</TABLE>

     Erroll B. Davis, Jr. has served as Chief Executive Officer since 1990 and
has been a director since 1988. Mr. Davis also has served as President and Chief
Executive Officer of Alliant Energy Corporation since 1990.

     James E. Hoffman was elected President in April 1998. Mr. Hoffman also was
elected Executive Vice President-Business Development of Alliant Energy
Corporation effective April 1998. Previously, he served as Executive Vice
President since 1996 at IES Utilities Inc. and Executive Vice President-Customer
Service & Energy Delivery from 1995 to 1997 at IES Utilities Inc. Prior to that
time, he was Chief Information Officer from 1990 to 1995 at MCI Communications.

     Thomas L. Aller was elected Vice President-Alliant Energy Investments in
1998. From 1993 to 1998, Mr. Aller served as Vice President-Real Estate, IES
Investments, Inc. Prior to that time, he served as Executive Vice President,
2001 Development Corporation beginning in 1988, and was Executive Assistant to
the Mayor and City Council of Cedar Rapids from 1972 to 1988.

     Charles Castine was elected Vice President-Industrial Services in 1998.
From 1994 to 1998, Mr. Castine served as Vice President, Consumer Service
Division, GE Appliance Business. Prior to that time, he served with General
Electric Power Generation in various capacities.

     John K. Peterson was elected Vice President-International effective July
1998. From 1994 to 1998, Mr. Peterson served as Vice President, Latin America,
Pacific Enterprises International and, from 1993 to

                                       17
<PAGE>   19

1994, he served as Manager, Corporate and Strategic Planning at the same firm.
Prior to that, he served in a number of management assignments with Southern
California Gas Company.

     John E. Ebright was elected Vice President-Controller effective April 1998.
From 1996 to 1998, Mr. Ebright served as Controller and Chief Accounting Officer
at IES Industries Inc. and IES Utilities Inc. Prior to that time, he was Vice
President and Controller from 1987 to 1996 at MidCon Corp., a subsidiary of
Occidental Petroleum Corporation. Mr. Ebright is also an officer of Alliant
Energy Corporation, IES Utilities Inc. and Wisconsin Power and Light Company.

     Edward M. Gleason was elected Vice President-Treasurer and Corporate
Secretary in 1993. Mr. Gleason has served as Vice President-Treasurer and
Corporate Secretary of Alliant Energy Corporation since 1993. He also has served
as Treasurer and Corporate Secretary of Wisconsin Power and Light Company since
1996 and Corporate Secretary of Wisconsin Power and Light Company from 1993 to
1996.

     Linda J. Wentzel was appointed Assistant Corporate Secretary effective May
1998. Ms. Wentzel has served as Assistant Corporate Secretary of Alliant Energy
Corporation since May 1998. From 1995 to 1998, Ms. Wentzel served as Executive
Administrative Assistant and, from 1992 to 1995, she served as Administrative
Assistant at Alliant Energy Corporation. Ms. Wentzel is also an officer of IES
Utilities Inc. and Wisconsin Power and Light Company.

     Enrique Bacalao was appointed Assistant Treasurer effective November 1998.
From 1995 to 1998, Mr. Bacalao was Vice President, Corporate Banking at the
Chicago Branch, and, from 1993 to 1995, he served as Manager and Head of the
Customer Dealing Group at the London Branch of The Industrial Bank of Japan,
Limited. Mr. Bacalao is also an officer of Alliant Energy Corporation, IES
Utilities Inc. and Wisconsin Power and Light Company.

     Steven F. Price was elected Assistant Treasurer effective April 1998. Prior
to that time, Mr. Price served as Assistant Corporate Secretary of Alliant
Energy Corporation and Wisconsin Power and Light Company and Assistant Treasurer
of Alliant Energy Corporation. Mr. Price is also an officer of IES Utilities
Inc. and Wisconsin Power and Light Company.

     Robert A. Rusch was elected Assistant Treasurer effective April 1998. Prior
to that time, Mr. Rusch served as Assistant Treasurer of Wisconsin Power and
Light Company from 1995 and Financial Analyst from 1989 to 1995 at Wisconsin
Power and Light Company. Mr. Rusch is also an officer of IES Utilities Inc. and
Wisconsin Power and Light Company.

     Daniel L. Siegfried was elected Assistant Corporate Secretary effective
April 1998. Mr. Siegfried also serves as Senior Attorney for Alliant Energy
Corporation. From 1992 to 1998, he served as Senior Environmental Counsel at IES
Industries Inc.

     Alan B. Arends has served as a director since April 1998. Mr. Arends
founded Alliance Benefit Group Financial Services Corp., an employee benefits
company, in 1983 and is currently its Chairman.

     Rockne G. Flowers has served as a director since 1988. Mr. Flowers is
Chairman of Nelson Industries, Inc., a muffler, filter, industrial silencer and
active sound and vibration control technology and manufacturing firm.

     Joyce L. Hanes has served as a director since April 1998. Ms. Hanes has
been the Chairman of Midwest Wholesale, Inc., a products wholesaler, since 1997
and a director of that company since 1970.

     Lee Liu has served as a director of our company since April 1998. He was
elected a director and Chairman of the Board of Alliant Energy Corporation in
April 1998. Prior to that time, Mr. Liu was Chairman of the Board and Chief
Executive Officer of IES Industries Inc. and IES Utilities Inc.

     Katherine C. Lyall has served as a director since 1994. Ms. Lyall has
served as President of the University of Wisconsin System since April 1992.

                                       18
<PAGE>   20

     Arnold M. Nemirow has served as a director since 1991. Mr. Nemirow is
Chairman, President and Chief Executive Officer of Bowater Incorporated, a pulp
and paper manufacturer. Mr. Nemirow served as President, Chief Executive Officer
and director of Wausau Paper Mills Company, a pulp and paper manufacturer, from
1990 until joining Bowater Incorporated in September 1994.

     Milton E. Neshek has served as a director since 1988.  Mr. Neshek serves as
General Counsel and as a director of Kikkoman Foods, Inc., a food products
manufacturer.

     Jack R. Newman has served as a director since April 1998. Mr. Newman is a
partner of Morgan, Lewis & Bockius, an international law firm based in
Washington, D.C. Prior to January 1994, he was a partner in the law firms of
Newman & Holtzinger and Newman, Bouknight and Edgar.

     Judith D. Pyle has served as a director since 1992.  Ms. Pyle is Vice Chair
of the Pyle Group, a financial services company. Prior to assuming her current
position, Ms. Pyle served as Vice Chair and Senior Vice President of Corporate
Marketing of Rayovac Corporation, a battery and lighting products manufacturer.

     Robert D. Ray has served as a director since April 1998. Mr. Ray has served
as President of Drake University since 1998. He served as President and Chief
Executive Officer of Life Investors Insurance Co. (AEGON USA) from 1983 to 1989
and President of Blue Cross/Blue Shield (Wellmark) from 1989 until his
retirement in 1996. Prior to that time, Mr. Ray served as Governor of the State
of Iowa for fourteen years.

     Robert W. Schlutz has served as a director since April 1998. Mr. Schlutz is
President of Schlutz Enterprises, a diversified farming and retailing business.

     Wayne H. Stoppelmoor has served as a director since April 1998. Mr.
Stoppelmoor has also served as Vice Chairman of the Board of Alliant Energy
Corporation since April 1998. Prior to that time, Mr. Stoppelmoor served as
Chairman, President and Chief Executive Officer of Interstate Power Company. He
retired as President of Interstate Power Company in 1996 and as Chief Executive
Officer in 1997.

     Anthony R. Weiler has served as a director since April 1998. Mr. Weiler has
been Senior Vice President of Heilig-Meyers Company, a national furniture
retailer, since 1995. He was previously Chairman and Chief Executive Officer of
Chittenden & Eastman Company, a national manufacturer of mattresses.

     All of our directors also serve as directors of Alliant Energy Corporation,
IES Utilities Inc., Interstate Power Company and Wisconsin Power and Light
Company. Messrs. Liu and Davis have employment agreements and Mr. Stoppelmoor
has a consulting agreement with Alliant Energy Corporation pursuant to which
their terms of office are established. All of our other executive officers have
no definite terms of office and serve at the pleasure of our Board of Directors.
None of our executive officers or directors are related to any other executive
officers or directors.

                                       19
<PAGE>   21

                    DESCRIPTION OF OUTSTANDING INDEBTEDNESS

     The following is information concerning our indebtedness other than the
existing senior notes.

     We are a party to a 3-Year Credit Agreement with various banking
institutions. This agreement extends through October 2000, with one-year
extensions available upon agreement by the parties. We also use unused borrowing
availability under this agreement to support our commercial paper program. A
combined maximum of $450 million of borrowings under this agreement and the
commercial paper program may be outstanding at any time. Interest rates and
maturities are set at the time of borrowing. The rates are based upon quoted
market prices and the maturities are less than one year. At September 30, 1999,
we had no direct borrowings and $329.5 million of commercial paper outstanding
and backed by this facility, with interest rates ranging from 5.42% to 5.70% and
maturities ranging from 7 to 52 days. We intend to continue issuing commercial
paper backed by this facility. No conditions existed at September 30, 1999 that
would prevent the issuance of commercial paper or direct borrowings on our bank
lines.

     We are also a party to a 364-Day Credit Agreement with various banking
institutions. This agreement extends through October 16, 2000, with 364-day
extensions available upon agreement by the parties. We also use the unborrowed
portion of this agreement to support our commercial paper program. A combined
maximum of $150 million of borrowings under this agreement and commercial paper
backed by this facility may be outstanding at any one time. Interest rates and
maturities are set at the time of borrowing. The rates are based upon quoted
market prices and the maturities are less than one year. There were no
borrowings under this facility and no commercial paper backed by this facility
outstanding at September 30, 1999.

     At September 30, 1999, we had two interest rate swap agreements
outstanding, each with a notional amount of $100 million. These agreements
expire in April 2000, with the bank having a one-year renewal option under one
of the agreements. We entered into these agreements to reduce the impact of
changes in variable interest rates by converting variable rate borrowings into
fixed rate borrowings. Accordingly, these agreements require us to pay a fixed
rate and receive a variable rate. If we terminated the agreements at September
30, 1999, we would have had to make payments of approximately $228,125.

                                       20
<PAGE>   22

                               THE EXCHANGE OFFER

PURPOSE AND EFFECT; REGISTRATION RIGHTS

     We sold the existing senior notes on November 9, 1999 in transactions
exempt from the registration requirements of the Securities Act. Therefore, the
existing senior notes are subject to significant restrictions on resale. In
connection with the issuance of the existing senior notes, we entered into a
registration rights agreement, which required that we and Alliant Energy
Corporation:

     -  file with the SEC a registration statement under the Securities Act
        relating to the exchange offer and the issuance and delivery of new
        senior notes in exchange for the existing senior notes;

     -  use our reasonable best efforts to cause the SEC to declare the exchange
        offer registration statement effective under the Securities Act; and

     -  use our reasonable best efforts to consummate the exchange offer not
        later than 45 days following the effective date of the exchange offer
        registration statement.

     If you participate in the exchange offer, you will, with limited
exceptions, receive new senior notes that are freely tradeable and not subject
to restrictions on transfer. You should read this prospectus under the heading
"-- Resales of New Senior Notes" for more information relating to your ability
to transfer new senior notes.

     If you are eligible to participate in the exchange offer and do not tender
your existing senior notes, you will continue to hold the untendered existing
senior notes, which will continue to be subject to restrictions on transfer
under the Securities Act.

     The exchange offer is intended to satisfy our exchange offer obligations
under the registration rights agreement. The above summary of the registration
rights agreement is not complete and is subject to, and qualified by reference
to, all the provisions of the registration rights agreement. A copy of the
registration rights agreement has been filed as an exhibit to the registration
statement that includes this prospectus.

TERMS OF THE EXCHANGE OFFER

     We are offering to exchange $250,000,000 in aggregate principal amount of
our 7 3/8% Senior Notes due 2009 that have been registered under the Securities
Act for a like principal amount of our outstanding unregistered 7 3/8% Senior
Notes due 2009.

     Upon the terms and subject to the conditions set forth in this prospectus
and in the accompanying letter of transmittal, we will accept all existing
senior notes validly tendered and not withdrawn before 5:00 p.m., New York City
time, on the expiration date of the exchange offer. We will issue $1,000
principal amount of new senior notes in exchange for each $1,000 principal
amount of outstanding existing senior notes we accept in the exchange offer. You
may tender some or all of your existing senior notes under the exchange offer.
However, the existing senior notes are issuable in authorized denominations of
$1,000 and integral multiples thereof. Accordingly, existing senior notes may be
tendered only in denominations of $1,000 and integral multiples thereof. The
exchange offer is not conditioned upon any minimum amount of original notes
being tendered.

     The form and terms of the new senior notes will be the same as the form and
terms of the existing senior notes, except that:

     - the new senior notes will be registered with the SEC and thus will not be
       subject to the restrictions on transfer or bear legends restricting their
       transfer;

     - all of the new senior notes will be represented by global notes in
       book-entry form unless exchanged for notes in definitive certificated
       form under the limited circumstances described under "Description of the
       New Senior Notes -- Book-Entry Procedures and Form;" and

     - the new senior notes will not provide for the payment of additional
       interest under circumstances relating to the timing of the exchange
       offer.
                                       21
<PAGE>   23

     The new senior notes will evidence the same debt as the existing senior
notes and will be issued under, and be entitled to the benefits of, the
indenture, as supplemented, governing the existing senior notes.

     The new senior notes will accrue interest from the most recent date to
which interest has been paid on the existing senior notes or, if no interest has
been paid, from the date of issuance of the existing senior notes. Accordingly,
registered holders of new senior notes on the record date for the first interest
payment date following the completion of the exchange offer will receive
interest accrued from the most recent date to which interest has been paid on
the existing senior notes or, if no interest has been paid, from the date of
issuance of the existing senior notes. However, if that record date occurs prior
to completion of the exchange offer, then the interest payable on the first
interest payment date following the completion of the exchange offer will be
paid to the registered holders of the existing senior notes on that record date.

     In connection with the exchange offer, you do not have any appraisal or
dissenters' rights under the Wisconsin Business Corporation Law or the
indenture, as supplemented. We intend to conduct the exchange offer in
accordance with the registration rights agreement and the applicable
requirements of the Securities Exchange Act of 1934 and the rules and
regulations of the SEC.

     We will be deemed to have accepted validly tendered existing senior notes
when, as and if we have given oral or written notice of our acceptance to the
exchange agent. The exchange agent will act as agent for the tendering holders
for the purpose of receiving the new senior notes from us.

     If we do not accept any tendered existing senior notes because of an
invalid tender or for any other reason, we will return certificates for any
unaccepted existing senior notes without expense to the tendering holder as
promptly as practicable after the expiration date.

EXPIRATION DATE; AMENDMENTS

     The exchange offer will expire at 5:00 p.m., New York City time, on
          , 2000, unless we, in our sole discretion, extend the exchange offer.

     If we determine to extend the exchange offer, we will notify the exchange
agent of any extension by oral or written notice and give each registered holder
notice of the extension by means of a press release or other public announcement
before 9:00 a.m., New York City time, on the next business day after the
previously scheduled expiration date.

     We reserve the right, in our sole discretion, to delay accepting any
existing senior notes, to extend the exchange offer or to amend or terminate the
exchange offer if any of the conditions described below under "-- Conditions"
have not been satisfied or waived by giving oral or written notice to the
exchange agent of the delay, extension, amendment or termination. Further, we
reserve the right, in our sole discretion, to amend the terms of the exchange
offer in any manner. We will notify you as promptly as practicable of any
extension, amendment or termination.

PROCEDURES FOR TENDERING EXISTING SENIOR NOTES

     Any tender of existing senior notes that is not withdrawn prior to the
expiration date will constitute a binding agreement between the tendering holder
and us upon the terms and subject to the conditions set forth in this prospectus
and in the accompanying letter of transmittal. A holder who wishes to tender
existing senior notes in the exchange offer must do either of the following:

     -  properly complete, sign and date the letter of transmittal, including
        all other documents required by the letter of transmittal; have the
        signature on the letter of transmittal guaranteed if the letter of
        transmittal so requires; and deliver that letter of transmittal and
        other required documents to the exchange agent at the address listed
        below under "-- Exchange Agent" on or before the expiration date; or

     -  if the existing senior notes are tendered under the book-entry transfer
        procedures described below, transmit to the exchange agent on or before
        the expiration date an agent's message.



                                       22
<PAGE>   24

     In addition, one of the following must occur:

     -  the exchange agent must receive certificates representing your existing
        senior notes, along with the letter of transmittal, on or before the
        expiration date; or

     -  the exchange agent must receive a timely confirmation of book-entry
        transfer of the existing senior notes into the exchange agent's account
        at DTC under the procedure for book-entry transfers described below,
        along with the letter of transmittal or a properly transmitted agent's
        message, on or before the expiration date; or

     -  the holder must comply with the guaranteed delivery procedures described
        below.

     The term "agent's message" means a message, transmitted by a book-entry
transfer facility to and received by the exchange agent and forming a part of
the book-entry confirmation, which states that the book-entry transfer facility
has received an express acknowledgement from the tendering participant stating
that the participant has received and agrees to be bound by the letter of
transmittal and that we may enforce the letter of transmittal against the
participant.

     The method of delivery of existing senior notes, the letter of transmittal
and all other required documents to the exchange agent is at your election and
risk. Rather than mail these items, we recommend that you use an overnight or
hand delivery service. In all cases, you should allow sufficient time to assure
timely delivery to the exchange agent before the expiration date. Do not send
letters of transmittal or existing senior notes to us.

     Generally, an eligible institution must guarantee signatures on a letter of
transmittal or a notice of withdrawal unless the existing senior notes are
tendered:

     -  by a registered holder of the existing senior notes who has not
        completed the box entitled "Special Issuance Instructions" or "Special
        Delivery Instructions" on the letter of transmittal; or

     -  for the account of an eligible institution.

     If signatures on a letter of transmittal or a notice of withdrawal are
required to be guaranteed, the guarantee must be by a firm which is:

     -  a member of a registered national securities exchange;

     -  a member of the National Association of Securities Dealers, Inc.;

     -  a commercial bank or trust company having an office or correspondent in
        the United States; or

     -  another "eligible institution" within the meaning of Rule 17Ad-15 under
        the Securities Exchange Act.

     If the letter of transmittal is signed by a person other than the
registered holder of any outstanding existing senior notes, the original notes
must be endorsed or accompanied by appropriate powers of attorney. The power of
attorney must be signed by the registered holder exactly as the registered
holder(s) name(s) appear(s) on the existing senior notes and an eligible
institution must guarantee the signature on the power of attorney.

     If the letter of transmittal, or any existing senior notes or powers of
attorney are signed by trustees, executors, administrators, guardians,
attorneys-in-fact, officers of corporations or others acting in a fiduciary or
representative capacity, these persons should so indicate when signing. Unless
waived by us, they should also submit evidence satisfactory to us of their
authority to so act.

     If you wish to tender existing senior notes that are registered in the name
of a broker, dealer, commercial bank, trust company or other nominee, you should
promptly instruct the registered holder to tender on your behalf. If you wish to
tender on your behalf, you must, before completing the procedures for tendering
existing senior notes, either register ownership of the existing senior notes in
your name or obtain a properly completed bond power from the registered holder.
The transfer of registered ownership may take considerable time.


                                       23
<PAGE>   25

     We will determine in our sole discretion all questions as to the validity,
form, eligibility, including time of receipt, and acceptance of existing senior
notes tendered for exchange. Our determination will be final and binding on all
parties. We reserve the absolute right to reject any and all tenders of existing
senior notes not properly tendered or existing senior notes our acceptance of
which might, in the judgment of our counsel, be unlawful. We also reserve the
absolute right to waive any defects, irregularities or conditions of tender as
to any particular existing senior notes. Our interpretation of the terms and
conditions of the exchange offer, including the instructions in the letter of
transmittal, will be final and binding on all parties. Unless waived, any
defects or irregularities in connection with tenders of existing senior notes
must be cured within the time period we determine. Neither we, the exchange
agent nor any other person will incur any liability for failure to give you
notification of defects or irregularities with respect to tenders of your
existing senior notes.

     By tendering, you will represent to us that, among other things:

     -  the new senior notes acquired in the exchange offer are being acquired
        in the ordinary course of business of the person receiving the new
        senior notes;

     -  neither you nor any other person receiving your new senior notes has any
        arrangement or understanding with any person to participate in the
        distribution of the new senior notes; and

     -  neither you nor any other person receiving your new senior notes is our
        "affiliate," as defined under Rule 405 of the Securities Act.

     If you or the person receiving your new senior notes is our "affiliate," as
defined under Rule 405 of the Securities Act, or is participating in the
exchange offer for the purpose of distributing the new senior notes, you or that
other person cannot rely on the applicable interpretations of the staff of the
SEC, cannot tender your existing senior notes in the exchange offer and must
comply with the registration and prospectus delivery requirements of the
Securities Act in any resale transaction.

     If you are a broker-dealer and you will receive new senior notes for your
own account in exchange for the existing senior notes, where such existing
senior notes were acquired as a result of market-making activities or other
trading activities, you must acknowledge that you will deliver a prospectus in
connection with any resale of the new senior notes.

ACCEPTANCE OF EXISTING SENIOR NOTES FOR EXCHANGE; DELIVERY OF NEW SENIOR NOTES

     Upon satisfaction of all conditions to the exchange offer, we will accept,
promptly after the expiration date, all existing senior notes properly tendered
and will issue the new senior notes promptly after acceptance of the existing
senior notes.

     For purposes of the exchange offer, we will be deemed to have accepted
properly tendered existing senior notes for exchange when, as and if we have
given oral or written notice of that acceptance to the exchange agent. For each
existing senior note accepted for exchange, you will receive a new senior note
having a principal amount equal to that of the surrendered existing senior note.

     In all cases, we will issue new senior notes for existing senior notes that
we have accepted for exchange under the exchange offer only after the exchange
agent timely receives:

     - certificates for your existing senior notes or a timely confirmation of
       book-entry transfer of your existing senior notes into the exchange
       agent's account at DTC; and

     - a properly completed and duly executed letter of transmittal and all
       other required documents or a properly transmitted agent's message.

     If we do not accept any tendered existing senior notes for any reason set
forth in the terms of the exchange offer or if you submit existing senior notes
for a greater principal amount than you desire to exchange, we will return the
unaccepted or non-exchanged existing senior notes without expense to you. In the
case of existing senior notes tendered by book-entry transfer into the exchange
agent's account at DTC

                                       24
<PAGE>   26

under the book-entry procedures described below, we will credit the
non-exchanged existing senior notes to your account maintained with DTC.

BOOK-ENTRY TRANSFER

     We understand that the exchange agent will make a request within two
business days after the date of this prospectus to establish accounts for the
existing senior notes at DTC for the purpose of facilitating the exchange offer,
and any financial institution that is a participant in DTC's system may make
book-entry delivery of existing senior notes by causing DTC to transfer the
existing senior notes into the exchange agent's account at DTC in accordance
with DTC's procedures for transfer. Although delivery of existing senior notes
may be effected through book-entry transfer at DTC, the exchange agent must
receive a properly completed and duly executed letter of transmittal with any
required signature guarantees, or an agent's message instead of a letter of
transmittal, and all other required documents at its address listed below under
"-- Exchange Agent" on or before the expiration date, or if you comply with the
guaranteed delivery procedures described below, within the time period provided
under those procedures.

GUARANTEED DELIVERY PROCEDURES

     If you wish to tender your existing senior notes and your existing senior
notes are not immediately available, or you cannot deliver your existing senior
notes, the letter of transmittal or any other required documents or comply with
DTC's procedures for transfer before the expiration date, then you may
participate in the exchange offer if:

     -  the tender is made through an eligible institution;

     -  before the expiration date, the exchange agent receives from the
        eligible institution a properly completed and duly executed notice of
        guaranteed delivery, substantially in the form provided by us, by
        facsimile transmission, mail or hand delivery, containing (a) the name
        and address of the holder and the principal amount of existing senior
        notes tendered, (b) a statement that the tender is being made thereby,
        and (c) a guarantee that within three New York Stock Exchange trading
        days after the expiration date, the certificates representing the
        existing senior notes in proper form for transfer or a book-entry
        confirmation and any other documents required by the letter of
        transmittal will be deposited by the eligible institution with the
        exchange agent; and

     -  the exchange agent receives the properly completed and executed letter
        of transmittal as well as certificates representing all tendered
        existing senior notes in proper form for transfer, or a book-entry
        confirmation, and all other documents required by the letter of
        transmittal within three New York Stock Exchange trading days after the
        expiration date.

WITHDRAWAL RIGHTS

     You may withdraw your tender of existing senior notes at any time before
the exchange offer expires.

     For a withdrawal to be effective, the exchange agent must receive a written
notice of withdrawal at its address listed below under "-- Exchange Agent." The
notice of withdrawal must:

     -  specify the name of the person who tendered the existing senior notes to
        be withdrawn;

     -  identify the existing senior notes to be withdrawn, including the
        principal amount, or, in the case of existing senior notes tendered by
        book-entry transfer, the name and number of the DTC account to be
        credited, and otherwise comply with the procedures of DTC; and

     -  if certificates for existing senior notes have been transmitted, specify
        the name in which those existing senior notes are registered if
        different from that of the withdrawing holder.

     If you have delivered or otherwise identified to the exchange agent the
certificates for existing senior notes, then, before the release of such
certificates, you must also submit the serial numbers of the

                                       25
<PAGE>   27

particular certificates to be withdrawn and a signed notice of withdrawal with
the signatures guaranteed by an eligible institution, unless the holder is an
eligible institution.

     We will determine in our sole discretion all questions as to the validity,
form and eligibility, including time of receipt, of notices of withdrawal. Our
determination will be final and binding on all parties. Any existing senior
notes so withdrawn will be deemed not to have been validly tendered for purposes
of the exchange offer. We will return any existing senior notes that have been
tendered but that are not exchanged for any reason to the holder, without cost,
as soon as practicable after withdrawal, rejection of tender or termination of
the exchange offer. In the case of existing senior notes tendered by book-entry
transfer into the exchange agent's account at DTC, the existing senior notes
will be credited to an account maintained with DTC for the existing senior
notes. You may retender properly withdrawn existing senior notes by following
one of the procedures described under "-- Procedures for Tendering Existing
Senior Notes" at any time on or before the expiration date.

CONDITIONS

     Notwithstanding any other term of the exchange offer, we will not be
required to accept for exchange, or to exchange new senior notes for, any
existing senior notes if:

     -  the exchange offer, or the making of any exchange by a holder of
        existing senior notes, would violate any applicable law or applicable
        interpretation by the staff of the SEC;

     -  any action or proceeding is instituted or threatened in any court or by
        or before any governmental agency with respect to the exchange offer
        which, in our judgment, would reasonably be expected to impair our
        ability to proceed with the exchange offer; or

     -  at the time of the consummation of the exchange offer, the interest rate
        payable on the new senior notes would be greater than 300 basis points
        over the yield to maturity of a United States Treasury obligation with
        the same term as the new senior notes.

     The conditions listed above are for our sole benefit and we may assert them
regardless of the circumstances giving rise to any condition. Subject to
applicable law, we may waive these conditions in our discretion in whole or in
part at any time and from time to time. If we fail at any time to exercise any
of the above rights, the failure will not be deemed a waiver of those rights,
and those rights will be deemed ongoing rights which may be asserted at any time
and from time to time.

EXCHANGE AGENT

     Firstar Bank, N.A. is the exchange agent for the exchange offer. You should
direct any questions and requests for assistance and requests for additional
copies of this prospectus, the letter of transmittal or the notice of guaranteed
delivery to the exchange agent addressed as follows:

     By Hand, Overnight Mail, Courier, or Registered or Certified Mail:

        Firstar Bank, N.A.
        1555 North RiverCenter Drive
        Suite 301
        Milwaukee, Wisconsin 53212
        Attention: Ms. Pamela Warner

     By Facsimile:

        (414) 276-4226
        Attention: Ms. Pamela Warner

     Delivery of the letter of transmittal to an address other than as listed
above or transmission via facsimile other than as listed above will not
constitute a valid delivery of the letter of transmittal.

                                       26
<PAGE>   28

FEES AND EXPENSES

     We will pay the expenses of the exchange offer. We will not make any
payments to brokers, dealers or others soliciting acceptances of the exchange
offer. We are making the principal solicitation by mail; however, our officers
and employees may make additional solicitations by facsimile transmission,
e-mail, telephone or in person. You will not be charged a service fee for the
exchange of your senior notes, but we may require you to pay any transfer or
similar government taxes in certain circumstances.

TRANSFER TAXES

     You will not be obligated to pay any transfer taxes, unless you instruct us
to register new senior notes in the name of, or request that existing senior
notes not tendered or not accepted in the exchange offer be returned to, a
person other than the registered tendering holder.

ACCOUNTING TREATMENT

     We will record the new senior notes at the same carrying values as the
existing senior notes, which is the aggregate principal amount of the existing
senior notes, as reflected in our accounting records on the date of exchange.
Accordingly, we will not recognize any gain or loss on the exchange of senior
notes. We will amortize the expenses of the offer over the term of the new
senior notes.

CONSEQUENCES OF FAILURE TO EXCHANGE EXISTING SENIOR NOTES

     If you are eligible to participate in the exchange offer but do not tender
your existing senior notes, you will not have any further registration rights.
Your existing senior notes will continue to be subject to restrictions on
transfer. Accordingly, you may resell the existing senior notes that are not
exchanged only:

     - to us;

     - so long as the existing senior notes are eligible for resale under Rule
       144A under the Securities Act, to a person whom you reasonably believe is
       a "qualified institutional buyer" within the meaning of Rule 144A
       purchasing for its own account or for the account of a qualified
       institutional buyer in a transaction meeting the requirements of Rule
       144A;

     - in accordance with Rule 144 under the Securities Act or another exemption
       from the registration requirements of the Securities Act;

     - to an institutional accredited investor (as defined in Rule 501(a)(1),
       (2), (3) or (7) under the Securities Act) that is acquiring the existing
       senior notes for its own account or for the account of an institutional
       accredited investor for investment purposes and not with a view to, or
       for offer or sale in connection with, any distribution in violation of
       the Securities Act; or

     - under any effective registration statement under the Securities Act;

in each case in accordance with all other applicable securities laws. We do not
intend to register the existing senior notes under the Securities Act.

RESALES OF NEW SENIOR NOTES

     We are making the exchange offer in reliance on the position of the staff
of the SEC as set forth in interpretive letters addressed to third parties in
other transactions. However, we have not sought our own interpretive letter, and
there can be no assurance that the staff of the SEC would make a similar
determination with respect to the exchange offer as it has in the interpretive
letters addressed to third parties. Based on these interpretations by the staff
of the SEC, and except as provided below, we believe that new senior notes may
be offered for resale, resold and otherwise transferred by a holder that
participates in the exchange offer and is not a broker-dealer without further
compliance with the registration and prospectus delivery provisions of the
Securities Act. To receive new senior notes that are freely tradeable, a holder
must acquire the new senior notes in the ordinary course of its business and may

                                       27
<PAGE>   29

not participate, or have any arrangement or understanding with any person to
participate, in the distribution (within the meaning of the Securities Act) of
the existing senior notes or the new senior notes. Holders wishing to
participate in the exchange offer must make the representations described in
" -- Procedures for Tendering Existing Senior Notes" above.

     Any holder of existing senior notes:

     - who is our "affiliate," as defined in Rule 405 under the Securities Act;

     - who did not acquire the new senior notes in the ordinary course of its
       business; or

     - who intends to participate, or has an arrangement or understanding with
       any person to participate, in a distribution (within the meaning of the
       Securities Act) of the existing senior notes or the new senior notes,

will be subject to separate restrictions. Each holder in any of the above
categories:

     - will not be ably to rely on the interpretations of the staff of the SEC
       in the above-mentioned interpretative letters;

     - will not be permitted or entitled to tender existing senior notes in the
       exchange offer; and

     - must comply with the registration and prospectus delivery requirements of
       the Securities Act in connection with any sale or other transfer of
       existing senior notes unless such sale is made pursuant to an exemption
       from such requirements.

     In addition, if you are a broker-dealer holding existing senior notes
acquired for your own account, then you may be deemed a statutory "underwriter"
within the meaning of the Securities Act in connection with any resales of your
new senior notes. Each broker-dealer that receives new senior notes for its own
account pursuant to the exchange offer must acknowledge that it acquired the
existing senior notes for its own account as a result of market-making
activities or other trading activities and must agree that it will deliver a
prospectus meeting the requirements of the Securities Act in connection with any
resale of those new senior notes. The letter of transmittal states that by
making the above acknowledgement and by delivering a prospectus, a broker-dealer
will not be deemed to admit that it is an "underwriter" within the meaning of
the Securities Act.

     Based on the position taken by the staff of the SEC in the interpretative
letters referred to above, we believe that broker-dealers who acquired existing
senior notes for their own accounts, as a result of market-making or other
trading activities ("participating broker-dealers") may fulfill their prospectus
delivery requirements with respect to the new senior notes received upon the
exchange of existing senior notes (other than existing senior notes that
represent an unsold allotment from the original sale of the existing senior
notes) with a prospectus meeting the requirements of the Securities Act, which
may be the prospectus prepared for an exchange offer so long as it contains a
description of the plan of distribution with respect to the sale of such new
senior notes. Accordingly, this prospectus, as it may be amended or
supplemented, may be used by a participating broker-dealer in connection with
resales of new senior notes received in exchange for existing senior notes where
such existing senior notes were acquired by such participating broker-dealer for
its own account as a result of market-making or other trading activities. See
"Plan of Distribution." However, a participating broker-dealer who intends to
use this prospectus in connection with the resale of new senior notes received
in exchange for existing senior notes pursuant to the exchange offer must notify
us, or cause us to be notified, on or before the expiration date of the exchange
offer, that it is a participating broker-dealer. Such notice may be given in the
space provided for that purpose in the letter of transmittal or may be delivered
to the exchange agent at the address set forth above under " --  Exchange
Agent." Any participating broker-dealer who is an "affiliate" of ours may not
rely on such interpretive letters and must comply with the registration and
prospectus delivery requirements of the Securities Act in connection with any
resale transaction.

                                       28
<PAGE>   30

                      DESCRIPTION OF THE NEW SENIOR NOTES

     The existing senior notes were, and the new senior notes will be, issued
under and governed by an Indenture, as supplemented and amended by the First
Supplemental Indenture dated as of November 4, 1999 (the "Supplemental
Indenture," and collectively, the "Indenture"), between us and Firstar Bank,
N.A., as trustee and paying agent (the "Trustee"). The following summary of
certain provisions of the Indenture, the new senior notes and the guarantees is
not complete, and is qualified in its entirety by reference to the provisions of
the Indenture. A copy of the Indenture and the Supplemental Indenture have been
filed as exhibits to the registration statement that includes this prospectus.
The holders of new senior notes are entitled to the benefits of, are bound by,
and are deemed to have notice of, all the provisions of the Indenture. Wherever
defined terms of the Indenture are referred to, such defined terms are
incorporated herein by reference.

GENERAL

     The Indenture does not limit the aggregate principal amount of debt
securities that may be issued thereunder and provides that debt securities may
be issued from time to time in one or more series as provided in a supplemental
indenture or Board Resolution. The new senior notes will be unconditionally
guaranteed by Alliant Energy Corporation, will be issued in the aggregate
principal amount of $250,000,000 and will mature on November 9, 2009, at their
principal amount (unless previously redeemed).

     We will pay interest on the new senior notes at a rate of 7 3/8% per annum
from the most recent date to which interest has been paid on the existing senior
notes or, if no interest has been paid, from the date of issuance of the
existing senior notes. We will pay interest on the new senior notes semiannually
in arrears on May 9 and November 9 of each year, commencing on May 9, 2000,
until the principal amount has been paid or made available for payment, to the
persons in whose names the new senior notes are registered at the close of
business on May 1 or November 1, as the case may be, before each interest
payment date. Interest on the new senior notes will be computed on the basis of
a 360-day year of twelve 30-day months. The principal of and interest on the new
senior notes will be payable in U.S. dollars or in such other coin or currency
of the United States that at the time of payment is legal tender for the payment
of public and private debts.

RANKING

     The new senior notes will be senior, unsecured and unsubordinated
obligations of ours ranking equally and ratably with all our other senior,
unsecured and unsubordinated obligations. The new senior notes will be
unconditionally guaranteed by Alliant Energy Corporation. The guarantees will be
unsecured obligations of Alliant Energy Corporation and will rank equally with
all other unsecured and unsubordinated indebtedness of Alliant Energy
Corporation. Because we are a holding company and conduct substantially all of
our operations through our subsidiaries, the rights of our creditors, including
those under the new senior notes, to participate in any distributions of the
assets of any of our subsidiaries or joint ventures, upon liquidation or
reorganization or otherwise, are necessarily subject, and therefore will be
effectively subordinated, to the prior claims of creditors of any of our
subsidiaries or joint ventures (including trade creditors and holders of
indebtedness issued by such subsidiary or joint venture), except to the extent
our claims as a creditor may be recognized.

     In addition, because Alliant Energy Corporation is a holding company which
conducts substantially all of its operations through subsidiaries, including us,
the right of Alliant Energy Corporation, and hence the right of creditors of
Alliant Energy Corporation (including holders of the new senior notes through
the guarantees), to participate in any distribution of assets of any subsidiary
upon its liquidation or reorganization or otherwise is necessarily subject to
the prior claims of creditors of such subsidiaries, except to the extent that
claims of Alliant Energy Corporation itself as a creditor of the subsidiary may
be recognized.

                                       29
<PAGE>   31

     The new senior notes will also be effectively subordinated to all of our
future secured indebtedness and the related guarantees will be effectively
subordinated to all future secured indebtedness of Alliant Energy Corporation.

BOOK-ENTRY PROCEDURES AND FORM

  Global Notes: Book-Entry Form

     Except as provided below, the new senior notes will be issued in fully
registered book-entry form and will be represented by one or more global notes.
The global notes will be deposited with, or on behalf of, The Depositary Trust
Company of New York City ("DTC") and registered in the name of a nominee of DTC.

     We expect that pursuant to procedures established by DTC (a) upon the
issuance of the new senior notes in the form of one or more global notes, DTC or
its custodian will credit, on its internal system, the principal amount of new
senior notes of the individual beneficial interests represented by these global
notes to the respective accounts of persons who have accounts with DTC
("participants") and (b) ownership of beneficial interests in the global notes
will be shown on, and the transfer of this ownership will be effected only
through, records maintained by DTC or its nominee (with respect to interests of
participants) and the records of participants (with respect to interests of
persons other than participants). Holders of senior notes may hold their
interests in the global notes directly through DTC if they are participants in
this system, or indirectly through organizations which are participants in this
system. The laws of some states of the United States may require that certain
purchasers of securities take physical delivery of the new senior notes in
definitive certificated form. Such limits and such laws may impair the ability
of such purchasers to own, transfer or pledge interests in the global notes.

     So long as DTC, or its nominee, is the registered owner or holder of new
senior notes, DTC or its nominee, as the case may be, will be considered the
sole owner or holder of new senior notes represented by the global notes for all
purposes under the Indenture. No beneficial owner of an interest in the global
notes will be able to transfer that interest except in accordance with DTC's
procedures, in addition to those provided for under the Indenture with respect
to the new senior notes.

     Payments of the principal of and premium, if any, and interest on the
global notes will be made to DTC or its nominee, as the case may be, as the
registered owner thereof. None of us, the Trustee or any paying agent will have
any responsibility or liability for any aspect of the records relating to or
payments made on account of beneficial ownership interests in the global notes
or for maintaining, supervising or reviewing any records relating to such
beneficial ownership interest.

     We expect that DTC or its nominee, upon receipt of any payment of principal
of and premium, if any, and interest on the global notes, will credit
participants' accounts with payments in amounts proportionate to their
respective beneficial interests in the principal amount of the global notes as
shown on the records of DTC or its nominee. We also expect that payments by
participants to owners of beneficial interests in the global notes held through
such participants will be governed by standing instructions and customary
practice, as is now the case with securities held for the accounts of customers
registered in the names of nominees for such customers. These payments will be
the responsibility of such participants. Transfers between participants in DTC
will be effected in the ordinary way through DTC's settlement system in
accordance with DTC rules and will be settled in same day funds.

     DTC has advised us that it will take any action permitted to be taken by a
holder of new senior notes only at the direction of one or more participants to
whose account the DTC interests in the global notes are credited and only in
respect of such portion of the aggregate principal amount of new senior notes as
to which such participant or participants has or have given such direction.

     DTC has advised us as follows: DTC is a limited purpose trust company
organized under the laws of the State of New York, a member of the Federal
Reserve System, a "clearing corporation" within the meaning of the Uniform
Commercial Code and a "clearing agency" registered pursuant to the provisions of
Section 17A of the Securities Exchange Act of 1934. DTC was created to hold
securities for its
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<PAGE>   32

participants and facilitate the clearance and settlement of securities
transactions between participants through electronic book-entry changes in
accounts of its participants, thereby eliminating the need for physical movement
of certificates. Participants include securities brokers and dealers, banks,
trust companies and clearing corporations and certain other organizations.
Indirect access to the DTC system is available to others such as banks, brokers,
dealers and trust companies that clear through or maintain a custodial
relationship with a participant, either directly or indirectly ("indirect
participants").

     Although DTC has agreed to the foregoing procedures in order to facilitate
transfers of interests in the global notes among participants of DTC, it is
under no obligation to perform such procedures, and such procedures may be
discontinued at any time. None of us, the Trustee or any of our respective
agents will have any responsibility for the performance by DTC or its
participants or indirect participants of their respective obligations under the
rules and procedures governing their operations, including maintaining,
supervising or reviewing the records relating to, payments made on account of,
beneficial ownership interests in global notes.

     We have been informed by DTC that its management is aware that some
computer applications, systems and the like for processing data that are
dependent upon calendar dates, including dates before, on and after January 1,
2000, may encounter "Year 2000 problems." We have also been informed by DTC that
it has informed its participants and other members of the financial community
that it has developed and is implementing a program so that its systems, as the
same relates to the timely payment of distributions (including principal and
interest payments) to securityholders, book-entry deliveries and settlement of
trades within DTC, continue to function appropriately. According to DTC, this
program includes a technical assessment and a remediation plan, each of which is
complete. Additionally, DTC has informed us that its plan includes a testing
phase, which is expected to be completed within appropriate time frames.

     However, we have been informed by DTC that its ability to perform properly
its services is also dependent upon other parties, including but not limited to
issuers and their agents, as well as third-party vendors from whom DTC licenses
software and hardware, and third-party vendors on whom DTC relies for
information or the provision of services, including telecommunication and
electrical utility service providers, among others. DTC has informed us that it
has informed its participants and other members of the financial community that
it is contacting (and will continue to contact) third-party vendors from whom
DTC acquires services to impress upon them the importance of such services being
Year 2000 compliant and determine the extent of their efforts for Year 2000
remediation (and, as appropriate, testing) of their services. In addition, DTC
has informed us that it is in the process of developing such contingency plans
as it deems appropriate.

     According to DTC, the foregoing information with respect to DTC has been
provided to its participants and other members of the financial community for
informational purposes only and is not intended to serve as a representation,
warranty or contract modification of any kind.

  Certificated Debentures

     We will issue new senior notes in certificated form in exchange for global
notes if:

     -  DTC or any successor depositary notifies us that it is unwilling or
        unable to continue as a depositary for the global notes or ceases to be
        a "clearing agency" registered under the Securities Exchange Act of 1934
        and a successor depositary is not appointed by us within 90 days of such
        notice,

     -  an Event of Default (as defined below) under the new senior notes has
        occurred and is continuing, or

     -  we determine that the new senior notes will no longer be represented by
        global notes.

     The holder of a new senior note in certificated form may transfer such note
by surrendering it at the office or agency maintained by us for such purpose in
Milwaukee, Wisconsin or New York, New York.

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<PAGE>   33

     A holder of a new senior note may request that its new senior note be
issued in certificated form and may request at any time that its interest in a
global note be exchanged for a new senior note in certificated form. New senior
notes in certificated form may also be issued in exchange for new senior notes
represented by the global notes if no successor depositary is appointed by us as
described above or in certain other circumstances set forth in the Indenture.

PURCHASE AND CANCELLATION

     We may at any time purchase new senior notes in the open market or
otherwise at any price (subject to applicable U.S. securities laws). Any
purchase by tender will be made available to all holders of new senior notes.
Any new senior notes so purchased must be promptly surrendered to the Trustee
for cancellation.

     All new senior notes that are redeemed or purchased by us will promptly be
canceled. Any new senior notes in certificated form so canceled will be
forwarded to or to the order of the Trustee and such new senior notes in
certificated form may not be reissued or resold.

COVENANTS

     Except as otherwise set forth under "-- Defeasance and Covenant Defeasance"
below, for so long as any new senior notes remain outstanding or any amount
remains unpaid on any of the new senior notes, we will comply with the terms of
the covenants set forth below.

  Payment of Principal and Interest

     We will duly and punctually pay the principal of and premium, if any, and
interest on the new senior notes in accordance with the terms of the new senior
notes and the Indenture.

  Limitation on Liens

     The Indenture provides that we will not, and we will not permit any of our
subsidiaries to issue, assume or guarantee any Debt (as defined below) if the
Debt is secured by any Lien (as defined below) upon any of our property or
assets (other than cash), without effectively securing the outstanding new
senior notes (together with any other indebtedness or obligation then existing
or thereafter created ranking equally with the new senior notes) equally and
ratably with the Debt. This limitation does not apply to:

     -  Liens in existence on the date of original issuance of the new senior
        notes;

     -  any Lien created or arising over any property or assets which we or any
        of our subsidiaries acquire, construct or create, but only if (a) the
        Lien secures only principal amounts (not exceeding the cost of the
        acquisition, construction or creation) of Debt incurred for the purposes
        of the acquisition, construction or creation of the property or assets,
        together with any costs, expenses, interest and fees incurred in
        connection with the acquisition, construction or creation of the
        property or assets or a guarantee given in connection with the
        acquisition, construction or creation of the property or assets, (b) the
        Lien is created or arises on or before 90 days after the completion of
        the acquisition, construction or creation of the property or assets and
        (c) the Lien is confined solely to the property or assets so acquired,
        constructed or created;

     -  any Lien to secure the Debt incurred by us or our subsidiaries in
        connection with a specifically identifiable project where the Lien
        relates and is confined to a property or properties (including, without
        limitation, shares or other rights of ownership in the entities which
        own such property or project) involved in such project and acquired by
        us or our subsidiaries after the date of original issuance of the senior
        notes and the recourse of the creditors in respect of the Debt is
        limited to any or all of such project and property (including as
        aforesaid);

     -  any Lien securing amounts not more than 90 days overdue or otherwise
        being contested in good faith;

                                       32
<PAGE>   34

     -  (a) rights of financial institutions to offset credit balances in
        connection with the operation of cash management programs established
        for our or any of our subsidiaries' benefit or in connection with the
        issuance of letters of credit for our or any of our subsidiaries'
        benefit; (b) any Lien securing Debt incurred by us or any of our
        subsidiaries in connection with the financing of accounts receivable;
        (c) any Lien incurred or deposits made in the ordinary course of
        business, including, but not limited to, (1) any mechanics',
        materialmen's, carriers', workmen's, vendors' or other like Liens and
        (2) any Liens securing amounts in connection with workers' compensation,
        unemployment insurance and other types of social security; (d) any Lien
        upon specific items of our or any of our subsidiaries' inventory or
        other goods and proceeds securing our or any of our subsidiaries'
        obligations in respect of bankers' acceptances issued or created to
        facilitate the purchase, shipment or storage of such inventory or other
        goods; (e) any Lien incurred or deposits made securing the performance
        of tenders, bids, leases, trade contracts (other than for borrowed
        money), statutory obligations, surety bonds, appeal bonds, government
        contracts, performance bonds, return-of-money bonds and other
        obligations of like nature incurred by us or any of our subsidiaries in
        the ordinary course of business; (f) any Lien constituted by a right of
        set off or right over a margin call account or any form of cash or cash
        collateral or any similar arrangement for obligations incurred by us or
        any of our subsidiaries in respect of the hedging or management of risks
        under transactions involving any currency or interest rate swap, cap or
        collar arrangements, forward exchange transaction, option, warrant,
        forward rate agreement, futures contract or other derivative instrument
        of any kind; (g) any Lien arising out of title retention or like
        provisions in connection with the purchase of goods and equipment by us
        or any of our subsidiaries in the ordinary course of business; and (h)
        any Lien securing reimbursement obligations under letters of credit,
        guarantees and other forms of credit enhancement given in connection
        with the purchase of goods and equipment by us or any of our
        subsidiaries in the ordinary course of business;

     -  (a) Liens on any property or assets acquired from an entity which is
        merged with or into us or any of our subsidiaries and is not created in
        anticipation of any such transaction (unless the Lien was created to
        secure or provide for the payment of any part of the purchase price of
        the entity to be acquired) and (b) any Lien on any property or assets
        existing at the time of acquisition by us or any of our subsidiaries and
        which is not created in anticipation of the acquisition (unless the Lien
        was created to secure or provide for the payment of any part of the
        purchase price of the property or assets so acquired);

     -  (a) Liens required by any contract or statute in order to permit us or
        any of our subsidiaries to perform any contract or subcontract made by
        us or any of our subsidiaries with or at the request of a governmental
        entity or any department, agency or instrumentality of a governmental
        entity, or to secure partial, progress, advance or any other payments by
        us or any of our subsidiaries to a governmental unit under the
        provisions of any contract or statute; (b) any Lien securing industrial
        revenue, development or similar bonds issued by us or any of our
        subsidiaries or for our or any of our subsidiaries' benefit, provided
        that the industrial revenue, development or similar bonds are
        nonrecourse to us or any of our subsidiaries; and (c) any Lien securing
        taxes or assessments or other applicable governmental charges or levies;

     -  (a) any Lien which arises under any order of attachment, distraint or
        similar legal process arising in connection with court proceedings and
        any Lien which secures the reimbursement obligation for any bond
        obtained in connection with an appeal taken in any court proceeding, so
        long as the execution or other enforcement of the Lien arising in
        connection with such legal process is effectively stayed and the claims
        secured by the Lien are being contested in good faith and, if
        appropriate, by appropriate legal proceedings, or any Lien in favor of a
        plaintiff or defendant in any action before a court or tribunal as
        security for costs or expenses; or (b) any Lien arising by operation of
        law or by order of a court or tribunal or any Lien arising by an
        agreement of similar effect, including, without limitation, judgment
        liens; or

     -  any extension, renewal or replacement (or successive extensions,
        renewals or replacements), as a whole or in part, of any Liens referred
        to in the clauses above, for amounts not exceeding the


                                       33

<PAGE>   35

        principal amount of the Debt secured by the Lien so extended, renewed or
        replaced, so long as the extension, renewal or replacement Lien is
        limited to all or a part of the same property or assets that were
        covered by the Lien that was extended, renewed or replaced (plus
        improvements on such property or assets).

     Although the Indenture limits our and our subsidiaries' ability to incur
Liens as set forth above, the Indenture nevertheless provides that we or our
subsidiaries may create or permit to subsist Liens over any of our and our
subsidiaries' property or assets so long as the aggregate amount of Debt secured
by all Liens that we or our subsidiaries incur (excluding the amount of Debt
secured by Liens set forth in the clauses above) does not exceed 10% of Alliant
Energy Corporation's Consolidated Net Tangible Assets.

     "Consolidated Net Tangible Assets" is defined in the Indenture as the total
of all assets (including revaluations thereof as a result of commercial
appraisals, price level restatement or otherwise) appearing on the most recent
consolidated balance sheet of Alliant Energy Corporation as of the date of
determination, net of applicable reserves and deductions, but excluding
goodwill, trade names, trademarks, patents, unamortized debt discount and all
other like intangible assets (which term shall not be construed to include such
revaluations), less the aggregate of the consolidated current liabilities of
Alliant Energy Corporation appearing on such balance sheet.

     "Debt" is defined in the Indenture as all of our obligations evidenced by
bonds, debentures, notes or similar evidences of indebtedness in each case for
money borrowed.

     "Lien" is defined in the Indenture as any mortgage, lien, pledge, security
interest or other encumbrance. The term "Lien" does not include any easements,
rights-of-way, restrictions and other similar encumbrances and encumbrances
consisting of zoning restrictions, leases, subleases, licenses, sublicenses,
restrictions on the use of property or defects in the title thereto.

  Limitation on Sale and Lease-Back Transactions

     The Indenture provides that we will not enter into any Sale and Lease-Back
Transaction (as defined below) unless:

     -  such transaction involves a lease for a temporary period not to exceed
        three years;

     -  such transaction is between us and one of our affiliates;

     -  we would be entitled to incur Debt secured by a Lien on the assets or
        property involved in the Sale and Lease-Back Transaction at least equal
        to the Attributable Debt (as defined below) with respect to the Sale and
        Lease-Back Transaction, without equally and ratably securing the senior
        notes, as described under "-- Limitation on Liens" above, other than as
        described in the second paragraph of that description;

     -  we enter into the Sale and Lease-Back Transaction within 270 days after
        our initial acquisition of the assets or property subject to the Sale
        and Lease-Back Transaction;

     -  the aggregate amount of all Attributable Debt with respect to all Sale
        and Lease-Back Transactions then in effect does not exceed 10% of
        Alliant Energy Corporation's Consolidated Net Tangible Assets; or

     -  within 12 months preceding the sale or transfer or 12 months following
        the sale or transfer, regardless of whether we make any such sale or
        transfer, we apply, in the case of a sale or transfer for cash, an
        amount equal to the net proceeds of the sale or transfer and, in the
        case of a sale or transfer other than for cash, an amount equal to the
        fair value of the assets so leased at the time that we enter into such
        arrangement (as determined by our Board of Directors), (a) to the
        retirement of Debt, incurred or assumed by us which by its terms matures
        at, or is extendible or renewable at the option of the obligor to, a
        date more than 12 months after the date of incurring, assuming or
        guaranteeing such Debt or (b) to an investment in any of our assets.

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<PAGE>   36

     "Attributable Debt" is defined in the Indenture as, with respect to any
particular Sale and Lease-Back Transaction, at the time of determination, the
present value (discounted at the rate of interest implicit in the transaction
determined in accordance with generally accepted accounting principles) of the
obligation of the lessee for net rental payments during the remaining term of
the lease included in the Sale and Lease-Back Transaction (including any period
for which such lease has been extended or may, at the option of the lessor, be
extended).

     "Sale and Lease-Back Transaction" is defined in the Indenture as any
arrangement with any entity providing for the lease by us of any of the assets
that we have sold or transferred or that we have agreed to sell or transfer to
that entity.

  Consolidation, Merger, Conveyance, Sale or Lease

     The Indenture provides that we may, without the consent of any holders of
the new senior notes, consolidate with, merge into or be merged with, or convey,
transfer or lease our property and assets substantially as an entirety to
another U.S. entity so long as:

     -  if we are not the surviving entity, the surviving entity expressly
        assumes by supplemental indenture all of our applicable obligations
        under the new senior notes and the Indenture;

     -  immediately after giving effect to the transaction, no Event of Default
        and no event which, after notice or lapse of time or both, would become
        an Event of Default, has occurred and is continuing; and

     -  either we or our successor delivers to the Trustee an officers'
        certificate and an opinion of counsel stating that such consolidation,
        merger, conveyance, transfer or lease, and if a supplemental indenture
        is required by the transaction, the supplemental indenture, comply with
        the Indenture and all conditions precedent in the Indenture relating to
        such transaction.

     In addition, we may assign and delegate all of our rights and obligations
under the Indenture, the new senior notes, the Supplemental Indenture and all
other documents, agreements and instruments related thereto, as applicable, to
Alliant Energy Corporation or a subsidiary of Alliant Energy Corporation, any
person that owns all of our capital stock or any person that owns all of the
capital stock of a person that owns all of our capital stock, and upon the
assumption of such rights and obligations by such person, we will be
automatically released from the obligations, provided that immediately after
giving effect to the transaction, no Event of Default, and no event which, after
notice or lapse of time or both, would become an Event of Default, has occurred
and is continuing.

     The Indenture also provides that Alliant Energy Corporation may, without
the consent of any holders of the new senior notes, consolidate with, merge into
or be merged with, or convey, transfer or lease its property and assets
substantially as an entirety to another U.S. entity so long as:

     -  if Alliant Energy Corporation is not the surviving entity, the surviving
        entity assumes by supplemental indenture all of Alliant Energy
        Corporation's obligations under the guarantees and the Indenture;

     -  immediately after giving effect to the transaction, no Event of Default,
        and no event which, after notice or lapse of time or both, would become
        an Event of Default, has occurred and is continuing; and

     -  either Alliant Energy Corporation or the successor person delivers to
        the Trustee an officers' certificate and an opinion of counsel stating
        that such consolidation, merger, conveyance, transfer or lease, and if a
        supplemental indenture is required by the transaction, the supplemental
        indenture, comply with the Indenture and all conditions precedent in the
        Indenture, relating to such transactions.

                                       35
<PAGE>   37

  Money For Securities Payments To Be Held In Trust

     The Indenture provides that if we at any time act as our own Paying Agent
with respect to the new senior notes, we will, on or before each due date of the
principal of, or any premium or interest on, any of the new senior notes,
segregate and hold in trust for the benefit of the persons entitled a sum in the
currency in which the new senior notes are payable sufficient to pay the
principal or any premium or interest due until such sums are paid or otherwise
disposed of, and will promptly notify the Trustee of our action or failure to
act.

     Whenever we have one or more Paying Agents for any series of debt
securities, we will, on or prior to each due date of the principal of, or any
premium or interest on any series of debt securities, deposit with any Paying
Agent a sum sufficient to pay the principal or any premium or interest due, the
sum to be held in trust for the benefit of the persons entitled, and, unless the
Paying Agent is the Trustee, we will promptly notify the Trustee of our action
or failure to act.

     We will cause each Paying Agent for each series of debt securities, if
other than the Trustee, to execute and deliver to the Trustee an agreement that
requires the Paying Agent:

     -  to hold all sums held by it for the payment of the principal of, or any
        premium or interest on, any series of debt securities in trust for the
        benefit of the persons entitled until such sums are paid or otherwise
        disposed of as provided in the Indenture;

     -  to give the Trustee notice of any default by us or Alliant Energy
        Corporation in the making of any payment of principal, any premium or
        interest on any series of debt securities; and

     -  at any time during the continuance of the default, upon the written
        request of the Trustee, pay to the Trustee all sums held in trust by it.

     We or Alliant Energy Corporation may at any time pay, or direct any Paying
Agent to pay, to the Trustee all sums held in trust by us or the Paying Agent,
and such sums will be held by the Trustee upon the same terms as those
applicable to us or the Paying Agent; and, upon such payment by the Paying Agent
to the Trustee, the Paying Agent will be released from all further liability
with respect to such sums.

     Except as otherwise provided in the Indenture, any money deposited with the
Trustee or the Paying Agent, or held by us, in trust for the payment of the
principal of, any premium or interest on any series of debt securities and
remaining unclaimed for two years after such principal or any such premium or
interest has become due and payable will be discharged from such trust; and the
holder of the new senior note will thereafter, as an unsecured general creditor,
look only to us or Alliant Energy Corporation, as the case may be, for payment,
and all liability of the Trustee or the Paying Agent with respect to the trust
money, and all liability of us as trustee thereof, will cease; provided,
however, that the Trustee or the Paying Agent may at our expense cause to be
published once, in an authorized newspaper or mailed to holders of the new
senior notes, or both, notice that such money remains unclaimed and that, after
a date specified, which will not be less than 30 days from the date of the
publication or mailing nor later than two years after the principal and any
premium or interest have become due and payable, any unclaimed balance of such
money then remaining will be repaid to us or Alliant Energy Corporation, as the
case may be.

  Company And Guarantor Statements As To Compliance; Notice Of Certain Defaults

     We and Alliant Energy Corporation will each deliver to the Trustee, within
120 days after the end of each fiscal year, a written statement signed by our
respective principal executive officer, principal financial officer or principal
accounting officer, stating that:

     -  a review of our respective activities during the year and of our
        respective performances under the Indenture has been made under such
        officer's supervision, and

     -  to the best of such officer's knowledge, based on that review, (a) we or
        Alliant Energy Corporation, as the case may be, have complied with all
        the conditions and covenants imposed on

                                       36
<PAGE>   38

        each of us by the Indenture throughout the year, or, if there has been a
        default in the fulfillment of any condition or covenant, specifying each
        default known to such officer and its nature and status, and (b) no
        event has occurred and is continuing which is, or after notice or lapse
        of time or both would become, an Event of Default, or, if such an event
        has occurred and is continuing, specifying each such event known to such
        officer and its nature and status.

     We and Alliant Energy Corporation will deliver to the Trustee, within five
days after its occurrence, written notice of any Event of Default or any event
which after notice or lapse of time or both would become an Event of Default.

MODIFICATION OF THE INDENTURE

     We, Alliant Energy Corporation and the Trustee may modify and amend the
Indenture or any supplemental indenture or the rights of the holders of the debt
securities of each series to be affected with the consent of the holders of more
than 50% of the principal amount of the outstanding debt securities of each
affected series (with each series voting as a class). Such majority holders may
also waive compliance by us or Alliant Energy Corporation with any provision of
the Indenture, any supplemental indenture or the debt securities of any series.
However, without the consent of a holder of each debt security affected, an
amendment or waiver may not:

     -  reduce the amount of debt securities whose holders must consent to an
        amendment or waiver;

     -  change the rate or the time for payment of interest;

     -  change the principal or the fixed maturity;

     -  waive a default in the payment of principal, premium or interest;

     -  make any debt securities payable in a different currency;

     -  make any change in the provisions of the Indenture concerning (a) waiver
        of existing defaults; (b) right of holders of debt securities to receive
        payment; or (c) amendments and waivers with consent of holders of debt
        securities;

     -  impair the right to institute suit for the enforcement of any payment on
        or after the stated maturity of such payment or, in the case of
        redemption, on or after the redemption date; or

     -  modify or effect in any manner adverse to the holders the terms and
        conditions of Alliant Energy Corporation's obligations regarding due and
        punctual payment of principal of, or any premium or interest on, or any
        sinking fund requirements of, any debt securities subject to guarantees.

     We, Alliant Energy Corporation and the Trustee may amend or supplement the
Indenture without the consent of any holder of any of the debt securities:

     -  to cure any ambiguity, defect or inconsistency in the Indenture, any
        supplemental indenture, the debt securities or guarantees;

     -  to provide for the assumption of all of our obligations under the debt
        securities, the Indenture, or any supplemental indenture or of Alliant
        Energy Corporation's obligations under the guarantees and the Indenture
        or any supplemental indenture by any corporation in connection with a
        merger or consolidation of us or Alliant Energy Corporation or transfer
        or lease of our property and assets substantially as an entirety or
        Alliant Energy Corporation's property and assets substantially as an
        entirety;

     -  make any change that does not adversely affect the rights of any holder
        of debt securities;

     -  to add to the rights of holders of any of the debt securities;

     -  to secure any debt securities as provided under the heading "--
        Limitation on Liens";

                                       37
<PAGE>   39

     -  to evidence the succession of another person to us or Alliant Energy
        Corporation, and the assumption by the successor person of the covenants
        of us and Alliant Energy Corporation, as the case may be, provided in
        the Indenture or the senior notes;

     -  to establish the form or terms of any debt securities;

     -  to evidence and provide for the acceptance of appointment under the
        Indenture by a successor Trustee with respect to the debt securities and
        to add to or change any of the provisions of the Indenture necessary to
        facilitate the administration of the Indenture by more than one Trustee;
        or

     -  to supplement any of the provisions of the Indenture to the extent
        necessary to permit or facilitate defeasance (as defined below) and
        discharge of any debt securities, provided that such action will not
        adversely affect the interests of any holder of any debt security in any
        material respect.

EVENTS OF DEFAULT

     Any one of the following is an Event of Default with respect to the senior
notes:

          (a) if we or Alliant Energy Corporation default in the payment of any
     interest on the senior notes, and such default continues for 30 days;

          (b) if we or Alliant Energy Corporation default in payment of
     principal of or premium, if any, on the senior notes when the same become
     due at maturity, upon redemption, by declaration or otherwise;

          (c) if we or Alliant Energy Corporation materially default in the
     performance or materially breach any of our respective covenants or
     obligations in the Indenture, any supplemental indenture or the senior
     notes and this material default or breach continues for a period of 90 days
     after we or Alliant Energy Corporation receive written notice from the
     Trustee or the holders of at least 25% in aggregate principal amount of the
     outstanding senior notes;

          (d) if we or Alliant Energy Corporation default in the payment of the
     principal of any bond, debenture, note or other evidence of indebtedness,
     in each case for money borrowed, or in the payment of principal under any
     mortgage, indenture or instrument under which there may be issued or by
     which there may be secured or evidenced any indebtedness for money
     borrowed, which default for payment of principal is in an aggregate
     principal amount exceeding $25,000,000 (or its equivalent in any other
     currency or currencies) when such indebtedness becomes due and payable
     (whether at maturity, upon redemption or acceleration or otherwise), if
     such default continues unremedied or unwaived for more than 30 business
     days and the time for payment of such amount has not been expressly
     extended;

          (e) our failure or the failure by Alliant Energy Corporation generally
     to pay our respective debts as they become due, or the admission in writing
     of our inability or Alliant Energy Corporation's inability to pay our
     respective debts generally, or the making of a general assignment for the
     benefit of our respective creditors, or the institution of any proceeding
     by or against Alliant Energy Corporation or us (other than any proceeding
     brought against us or Alliant Energy Corporation, as applicable, that is
     dismissed within 180 days from its commencement) seeking to adjudicate us
     or Alliant Energy Corporation, as the case may be, bankrupt or insolvent,
     or seeking liquidation, winding up, reorganization, arrangement,
     adjustment, protection, relief or composition (in each case, other than a
     solvent liquidation, winding up, reorganization, arrangement, adjustment,
     protection, relief or composition) of us or Alliant Energy Corporation, as
     the case may be, or our respective debts under any law relating to
     bankruptcy, insolvency, reorganization, moratorium or relief of debtors, or
     seeking the entry of an order for relief or appointment of an
     administrator, receiver, trustee, intervenor or other similar official for
     us or Alliant Energy Corporation, as the case may be, or for any
     substantial part of our property or the property of Alliant Energy
     Corporation, or the taking of any action by Alliant Energy Corporation or
     us to authorize any of the actions set forth in this clause; and

                                       38
<PAGE>   40

          (f) a material default in the performance or material breach by
     Alliant Energy Corporation of any covenant or obligation of Alliant Energy
     Corporation contained in the guarantee, and the continuance of such
     material default or breach for a period of 90 days after which we or
     Alliant Energy Corporation receive written notice from the Trustee or the
     holders of at least 25% in aggregate principal amount of the senior notes.

     If an Event of Default with respect to the senior notes occurs and is
continuing, either the Trustee or the holders of at least 25% in aggregate
principal amount of the outstanding senior notes may declare the principal
amount of the outstanding senior notes, and any interest accrued on the senior
notes, to be due and payable immediately by delivering a written notice to us
and Alliant Energy Corporation (and to the Trustee if given by the holders). At
any time after this declaration of acceleration has been made, but before a
judgment or decree for payment of money has been obtained, the holders of a
majority in principal amount of all of the senior notes, by notice to the
trustee, may rescind this declaration and all its consequences if all Events of
Default have been cured or waived (other than the non-payment of principal of
the outstanding new senior notes which has become due solely by reason of the
declaration of acceleration), and such declaration of acceleration and its
consequences will be automatically annulled and rescinded.

     Holders of the new senior notes may not enforce the Indenture, the new
senior notes or any guarantees, if applicable, unless:

     -  the holder has previously given written notice to the Trustee of a
        continuing Event of Default with respect to the senior notes;

     -  the holders of not less than 25% in aggregate principal amount of the
        senior notes have made written request to the Trustee to institute
        proceedings in respect of such Event of Default in its own name as
        Trustee;

     -  the holder or holders have offered the Trustee indemnity satisfactory to
        the Trustee against the costs, expenses and liabilities to be incurred
        in compliance with such request;

     -  the Trustee, for 60 days after its receipt of such notice, request and
        offer of indemnity, has failed to institute any such proceedings; and

     -  no direction inconsistent with such written request has been given to
        the Trustee during the 60-day period by the holders of a majority of the
        outstanding aggregate principal amount of the senior notes.

     However, these limitations do not apply to a suit instituted by a holder of
any new senior notes for the enforcement of the payment of the principal of or
premium, if any, or interest on the new senior notes on or after the applicable
due date specified in the new senior notes.

     If the Trustee collects any money pursuant to an Event of Default, it will
pay out the money in the following order:

     -  first, to the Trustee for amounts to it as compensation for its services
        and any indemnities owed to it;

     -  second, to holders of the senior notes in respect of which or for the
        benefit of which such money has been collected for amounts due and
        unpaid on the senior notes for principal and interest, ratably, without
        preference or priority of any kind, according to the amounts due and
        payable on the senior notes for principal and interest, respectively;
        and

     -  third, to the person or persons lawfully entitled thereto, or as a court
        of competent jurisdiction may direct.

     The Trustee may fix a record date (with respect to registered securities)
and payment date for any such payment to holders of the senior notes.

                                       39
<PAGE>   41

     Any such record date will not be less than 10 days nor more than 60 days
prior to the applicable payment date.

OPTIONAL REDEMPTION

     We may redeem the new senior notes at our option in whole or in part at any
time, on at least 30 days' but not more than 60 days' prior written notice
mailed to the registered holders of the new senior notes, at a price equal to
the greater of (a) 100% of the principal amount of the new senior notes being
redeemed and (b) the sum of the present values of the principal amount of the
new senior notes to be redeemed and the remaining scheduled payments of interest
on the new senior notes from the redemption date to November 9, 2009, discounted
from their respective scheduled payment dates to the redemption date
semi-annually (assuming a 360-day year consisting of twelve 30-day months) at a
discount rate equal to the Treasury Yield plus 20 basis points, plus accrued
interest on the new senior notes to the redemption date.

     "Treasury Yield" means, with respect to any redemption date, the annual
rate equal to the semi-annual equivalent yield to maturity of the Comparable
Treasury Issue (as defined below), assuming a price for the Comparable Treasury
Issue (expressed as a percentage of its principal amount) equal to the
Comparable Treasury Price (as defined below) for such redemption date.

     "Comparable Treasury Issue" means the United States treasury security
selected by an Independent Investment Banker (as defined below) as having a
maturity comparable to the remaining term of the senior 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 the senior notes.

     "Comparable Treasury Price" means, with respect to any date of redemption,
(a) the average of the bid and asked prices for the Comparable Treasury Issue
(expressed in each case as a percentage of its principal amount) on the third
business day preceding the redemption date, as set forth in the daily
statistical release (or any successor release) published by the Federal Reserve
Bank of New York and designated "Composite 3:30 p.m. Quotations for U.S.
Government Securities" or (b) if such release (or any successor release) is not
published or does not contain such prices on the business day in question, the
Reference Treasury Dealer Quotation (as defined below) for the redemption date.

     "Independent Investment Banker" means an independent investment banking
institution of national standing appointed by us and reasonably acceptable to
the Trustee.

     "Reference Treasury Dealer Quotation" means, with respect to the Reference
Treasury Dealer (as defined below) and redemption date, the average, as
determined by us, of the bid and asked prices for the Comparable Treasury Issue
(expressed in each case as a percentage of its principal amount and quoted in
writing to us by the Reference Treasury Dealer at 5:00 p.m. on the third
business day preceding the redemption date).

     "Reference Treasury Dealer" means a primary United States government
securities dealer in New York City appointed by us and reasonably acceptable to
the Trustee.

     Notice of redemption will be mailed by first class mail at least 30 but not
more than 60 days before the redemption date to each holder of the new senior
notes to be redeemed at its registered address.

     If fewer than all the new senior notes are to be redeemed, selection of new
senior notes for redemption will be made by the Trustee in any manner the
Trustee deems fair and appropriate and that complies with applicable legal and
securities exchange requirements.

     Unless we default in payment of the redemption price, from and after the
date of redemption, the new senior notes or portions thereof called for
redemption will cease to bear interest, and the holders of the new senior notes
will have no right in respect of the new senior notes except the right to
receive the redemption price.

                                       40
<PAGE>   42

DEFEASANCE AND COVENANT DEFEASANCE

     The Indenture provides that we and Alliant Energy Corporation may elect (a)
to be discharged from any and all of our respective obligations in respect of
the new senior notes ("defeasance") (except in each case for the obligations to
register the transfer or exchange of the new senior notes, replace stolen, lost
or mutilated new senior notes, maintain paying agencies and hold moneys for
payments in trust) or (b) not to comply with certain covenants ("covenant
defeasance") of the Indenture with respect to the new senior notes described
above under "-- Covenants" if, in either case, we and Alliant Energy Corporation
irrevocably deposit with the Trustee money or U.S. Government Obligations (as
defined below) or a combination of money or U.S. Government Obligations, in an
amount sufficient (together with interest paid on the U.S. Government
Obligations) to pay, when due, the principal of and premium, if any, and
interest on the outstanding new senior notes to maturity or redemption or an
installment of interest, as the case may be. We and Alliant Energy Corporation
must satisfy certain other conditions before we may effect defeasance or
covenant defeasance. These conditions include:

     -  that no Event of Default or event, which with notice or lapse of time
        would become an Event of Default (including by reason of such deposit)
        with respect to the new senior notes, will have occurred and be
        continuing on the date of the deposit or insofar as an Event of Default
        described in clause (e) of the first paragraph under "-- Events of
        Default" is concerned, at any time during the period ending on the 181st
        day of such deposit (it being understood that this condition will not be
        satisfied until the expiration of such period); and

     -  that the defeasance or covenant defeasance will not result in the breach
        or violation of, or constitute a default under, the Indenture or any
        other material agreement or instrument under which we are bound or under
        which Alliant Energy Corporation is bound, as the case may be.

     To exercise any such option, we or Alliant Energy Corporation, as
applicable, will be required to deliver to the Trustee (a) an opinion of
independent counsel of recognized standing to the effect that (1) the holders of
the new senior notes will not recognize income, gain or loss for United States
federal income tax purposes as a result of such deposit, and will be subject to
United States federal income tax on the same amounts, in the same manner and at
the same times as would have been the case absent such deposit, which in the
case of defeasance must be based on a change in law or a published ruling by the
United States Internal Revenue Service and (2) the deposit will not result in us
or Alliant Energy Corporation being deemed an "investment company" required to
be registered under the Investment Company Act of 1940 and (b) an officer's
certificate as to compliance with all conditions precedent provided for in the
Indenture relating to the satisfaction and discharge of the new senior notes.

     If we or Alliant Energy Corporation wish to deposit or cause to be
deposited money or U.S. Government Obligations to pay or discharge the principal
of, premium, if any, and interest on the outstanding new senior notes to and
including a redemption date on which all of the outstanding new senior notes are
to be redeemed, the redemption date will be irrevocably designated by a
resolution of our Board of Directors or a resolution of the Board of Directors
of Alliant Energy Corporation, as the case may be, delivered to the Trustee on
or prior to the date of deposit of such money or U.S. Government Obligations,
and such Board resolution will be accompanied by an irrevocable notice of the
defeasance to the Trustee.

     If the Trustee is unable to apply any money or U.S. Government Obligations
deposited in trust to effect a defeasance or covenant defeasance by reason of
any order or judgment of any court or governmental authority enjoining,
restraining or otherwise prohibiting such application, then any obligations from
which we or Alliant Energy Corporation had been discharged or released will be
revived and reinstated as though no such deposit of moneys in trust had
occurred, until the time that the Trustee is permitted so to apply all of the
money or U.S. Government Obligations deposited in trust.

     "U.S. Government Obligations" means direct obligations of the United States
for the payment of which its full faith and credit is pledged, or obligations of
a person controlled or supervised by and acting as an agency or instrumentality
of the United States and the payment of which is unconditionally

                                       41
<PAGE>   43

guaranteed by the United States, and will also include a depository receipt
issued by a bank or trust company as custodian with respect to any U.S.
Government Obligation or a specific payment of interest on or principal of any
U.S. Government Obligation held by a custodian for the account of a holder of a
depository receipt. However, except as required by law, a custodian is not
authorized to make any deduction from the amount payable to the holder of any
depository receipt from any amount received by the custodian in respect of the
U.S. Government Obligation or the specific payment of interest on or principal
of the U.S. Government Obligation evidenced by a depository receipt.

PAYMENT AND PAYING AGENT

     We have appointed the Trustee to act as paying agent with respect to the
new senior notes. We may at any time designate additional paying agents or
rescind the designation of any paying agents or approve a change in the office
through which any paying agent acts, except that we will be required to maintain
a paying agent in each place of payment for the new senior notes.

     All moneys paid by us to the paying agent for the payment of the principal
of, or premium, if any, or interest on, any new senior notes that remain
unclaimed at the end of two years after such principal, premium, if any, or
interest has become due and payable will be repaid to us and the holder of the
new senior notes will thereafter look only to us for payment of any such
amounts.

GOVERNING LAW

     The Indenture and the new senior notes will be governed by, and construed
in accordance with, the laws of the State of Wisconsin.

                                       42
<PAGE>   44

                UNITED STATES FEDERAL INCOME TAX CONSIDERATIONS

     THIS SUMMARY IS OF A GENERAL NATURE AND IS INCLUDED SOLELY FOR
INFORMATIONAL PURPOSES. IT IS NOT INTENDED TO BE, NOR SHOULD IT BE CONSTRUED AS
BEING, LEGAL OR TAX ADVICE. NO REPRESENTATION WITH RESPECT TO THE CONSEQUENCES
TO ANY PARTICULAR PURCHASER OF THE NEW SENIOR NOTES IS MADE. PROSPECTIVE
PURCHASERS SHOULD CONSULT THEIR OWN TAX ADVISORS WITH RESPECT TO THEIR
PARTICULAR CIRCUMSTANCES.

     The following is a summary of certain material United States federal income
tax consequences to a beneficial owner of new senior notes (a "United States
Holder") who is (a) a citizen or resident of the United States, (b) a
corporation, partnership or other entity treated as a corporation or a
partnership for United States federal income tax purposes created or organized
in or under the laws of the United States, any state thereof or the District of
Columbia, (c) an estate whose income is subject to United States federal income
tax regardless of its source, or (d) a trust if a court within the United States
is able to exercise primary supervision over the administration of the trust and
one or more United States persons have the authority to control all substantial
decisions of the trust.

     The following summary deals only with new senior notes held as capital
assets by purchasers at the issue price who are United States Holders and not
with special classes of holders, such as dealers in securities or currencies,
financial institutions, life insurance companies, tax-exempt entities, persons
holding new senior notes as a hedge against or which are hedged against currency
risks, and persons whose functional currency is not the U.S. dollar. Persons
considering the purchase of new senior notes should consult their own tax
advisors concerning these matters and as to the tax treatment under foreign,
state and local tax laws and regulations. There can be no assurance that the
Internal Revenue Service will not challenge the conclusions stated below, and no
ruling from the IRS has been or will be sought on any of the matters discussed
below.

     This summary is based upon the Internal Revenue Code of 1986, as amended,
Treasury Regulations, IRS rulings and pronouncements and judicial decisions now
in effect, all of which are subject to change at any time. Changes in this area
of law may be applied retroactively in a manner that could cause the tax
consequences to vary substantially from the consequences described below,
possibly adversely affecting a United States Holder. The authorities on which
this summary is based are subject to various interpretations, and it is
therefore possible that the federal income tax treatment of the purchase,
ownership and disposition of the new senior notes may differ from the treatment
described below.

CONSEQUENCES OF THE EXCHANGE OFFER TO EXCHANGING AND NONEXCHANGING HOLDERS

     The exchange of an existing senior note for a new senior note pursuant to
the exchange offer will not be taxable to an exchanging United States Holder for
federal income tax purposes. As a result, an exchanging United States Holder
will not recognize any gain or loss on the exchange; the holding period for the
new senior note will include the holding period for the existing senior note;
and the basis of the new senior note will be the same as the basis for the new
senior note.

     The exchange offer will result in no federal income tax consequences to a
nonexchanging United States Holder of existing senior notes.

GENERAL

     A United States Holder using the accrual method of accounting for federal
income tax purposes is required to include interest paid or accrued on the new
senior notes in ordinary income as interest accrues, while a United States
Holder using the cash receipts and disbursements method of accounting for
federal income tax purposes must include interest in ordinary income when
payments are received (or made available for receipt) by the United States
Holder.

     Although the existing senior notes were issued at a discount, such discount
is not considered to be original issue discount for tax purposes. However, the
existing senior notes provide for the payment of


                                       43
<PAGE>   45

additional amounts of interest under certain circumstances and therefore both
the existing and new senior notes are subject to the Treasury Regulations that
apply to debt instruments that provide for one or more contingent payments. For
purposes of determining whether the existing senior notes were issued with
original issue discount, we intend to take the position that the existing senior
notes did not, as of the issue date, represent contingent payment debt because
the likelihood of paying an increased rate of interest as a result of a
Registration Default was remote. Accordingly, both the existing and new senior
notes will not be considered to be issued with original issue discount. A United
States Holder may not take a contrary position unless such contrary position is
disclosed in the proper manner to the IRS. United States Holders should consult
their tax advisors regarding the tax consequences of the new senior notes being
treated as contingent payment debt.

     If the IRS successfully asserts that these contingent payments were not
remote as of the issue date, the amount and timing of the interest income that a
United States Holder is required to include in taxable income may have to be
redetermined and any gain or loss on a sale, exchange, redemption or retirement
of the new senior notes, may be recharacterized as ordinary income.

SALE, EXCHANGE, REDEMPTION OR RETIREMENT OF NEW SENIOR NOTES

     Upon the sale, exchange, redemption or retirement of a new senior note, a
United States Holder will generally recognize capital gain or loss equal to the
difference between the amount realized (not including any amounts attributable
to accrued and unpaid interest) and the United States Holder's tax basis in the
new senior note. A United States Holder's tax basis in a new senior note will
generally be its cost. Such capital gain or loss will generally be long-term
capital gain or loss if the new senior notes were held for more than one year;
otherwise, the capital gain or loss will be short-term.

ASSUMPTION OF THE NEW SENIOR NOTES

     An assumption (due to a consolidation, share exchange, merger, conveyance,
transfer or other transaction) of our obligations under the new senior notes may
be deemed for United States federal income tax purposes to be an exchange of the
new senior notes for new debt instruments resulting in the recognition of
taxable gain or loss to a United States Holder and possibly other adverse United
States tax consequences. Investors should consult their tax advisors regarding
the United States federal, state, local and foreign tax consequences of such an
assumption.

WITHHOLDING TAXES AND REPORTING REQUIREMENTS

     Interest payments and payments of principal and any premium with respect to
a new senior note will be reported to the extent required by the Code to the
United States Holders and the IRS. These amounts will ordinarily not be subject
to withholding of United States federal income tax. However, a backup
withholding tax at a rate of 31% will apply to these payments if a United States
Holder fails to properly certify to us or our agent the United States Holder's
taxpayer identification number and certain other information, or fails to report
all interest and dividends required to be reported on its federal income tax
returns, or otherwise fails to establish, in the manner prescribed by law, an
exemption from backup withholding. Any amount withheld under backup withholding
is allowable as a credit against the United States Holder's federal income tax
liability, provided such person furnishes the required information to the IRS.

     New IRS regulations will generally be applicable to payments made after
December 31, 1999. In general, these regulations do not significantly alter the
substantive withholding and information reporting requirements but unify and
clarify current procedures. Under the new regulations, special rules apply which
permit the shifting of primary responsibility for withholding to certain
financial intermediaries acting on behalf of beneficial owners. United States
Holders of new senior notes should consult with their own tax advisors regarding
the application of the backup withholding rules to their particular situation,
the availability of exemption therefrom, the procedure for obtaining such an
exemption, if available, and the impact of the new regulations with respect to
new senior notes.

                                       44
<PAGE>   46

                              PLAN OF DISTRIBUTION

     Each broker-dealer that receives new senior notes for its own account as a
result of market-making activities or other trading activities in connection
with the exchange offer must acknowledge that it will deliver a prospectus in
connection with any resale of such new senior notes. This prospectus, as it may
be amended or supplemented from time to time, may be used by a broker-dealer in
connection with resales of new senior notes received in exchange for existing
senior notes where such existing senior notes were acquired as a result of
market-making activities or other trading activities.

     We will not receive any proceeds in connection with the exchange offer or
any sale of new senior notes by broker-dealers. New senior notes received by
broker-dealers for their own account pursuant to the exchange offer may be sold
from time to time in one or more transactions in the over-the-counter market, in
negotiated transactions, through the writing of options on the new senior notes
or a combination of such methods of resale, at market prices prevailing at the
time of resale, at prices related to such prevailing market prices or negotiated
prices. Any such resale may be made directly to purchasers or to or through
brokers or dealers who may receive compensation in the form of commissions or
concessions from any such broker-dealers or the purchasers of any such new
senior notes. Any broker-dealer that resells new senior notes that were received
by it for its own account pursuant to the exchange offer and any broker-dealer
that participates in a distribution of such new senior notes may be deemed to be
an "underwriter" within the meaning of the Securities Act and any profit on any
such resale of new senior notes and any commissions or concessions received by
any such persons may be deemed to be underwriting compensation under the
Securities Act. The letter of transmittal states that by acknowledging that it
will deliver, and by delivering, a prospectus, a broker-dealer will not be
deemed to admit that it is an "underwriter" within the meaning of the Securities
Act. See "The Exchange Offer -- Resales of the New Senior Notes."

                                       45
<PAGE>   47

                                 LEGAL MATTERS

     Foley & Lardner of Milwaukee, Wisconsin will issue an opinion about certain
legal matters with respect to the new senior notes.

                                    EXPERTS

     The audited financial statements and schedules incorporated by reference in
this prospectus and elsewhere in the registration statement have been audited by
Arthur Andersen LLP, independent public accountants, as indicated in their
reports with respect thereto, and are included herein in reliance upon the
authority of said firm as experts in giving said reports.

                                       46
<PAGE>   48

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

                                  $250,000,000

                     [ALLIANT ENERGY RESOURCES, INC. LOGO]

                         ALLIANT ENERGY RESOURCES, INC.

                        NEW 7 3/8% SENIOR NOTES DUE 2009
                         UNCONDITIONALLY GUARANTEED BY

                           ALLIANT ENERGY CORPORATION

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

                                           , 1999

- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
<PAGE>   49

                                    PART II

                     INFORMATION NOT REQUIRED IN PROSPECTUS

ITEM 20. INDEMNIFICATION OF DIRECTORS AND OFFICERS.

     Pursuant to the provisions of the Wisconsin Business Corporation Law and
Article VIII of the Registrants' Bylaws, directors and officers of the
Registrants are entitled to mandatory indemnification from the Registrants
against certain liabilities (which may include liabilities under the Securities
Act of 1933) and expenses (i) to the extent such officers or directors are
successful in the defense of a proceeding; and (ii) in proceedings in which the
director or officer is not successful in defense thereof, unless it is
determined that the director or officer breached or failed to perform his or her
duties to either Registrant and such breach or failure constituted: (a) a
willful failure to deal fairly with either Registrant or its shareholders in
connection with a matter in which the director or officer had a material
conflict of interest; (b) a violation of criminal law unless the director or
officer had a reasonable cause to believe his or her conduct was lawful or had
no reasonable cause to believe his or her conduct was unlawful; (c) a
transaction from which the director or officer derived an improper personal
profit; or (d) willful misconduct. Additionally, under the Wisconsin Business
Corporation Law, directors of the Registrants are not subject to personal
liability to the Registrants, their shareholders or any person asserting rights
on behalf thereof, for certain breaches or failures to perform any duty
resulting solely from their status as directors, except in circumstances
paralleling those outlined in (a) through (d) above.

     The indemnification provided by the Wisconsin Business Corporation Law and
the Registrants' Bylaws is not exclusive of any other rights to which a director
or officer of the Registrants may be entitled. The Registrants also carry
directors' and officers' liability insurance.

     The Registration Rights Agreement contains provisions under which the
underwriters agree to indemnify the directors and officers of the Registrants
against certain liabilities, including liabilities under the Securities Act of
1933 or to contribute to payments the directors and officers may be required to
make in respect thereof.

ITEM 21. EXHIBITS AND FINANCIAL STATEMENT SCHEDULES.

     (a) Exhibits. The exhibits listed in the accompanying Exhibit Index are
filed (except where otherwise indicated) as part of this Joint Registration
Statement.

     (b) Financial Statement Schedules. Schedule II - Valuation and Qualifying
Accounts is hereby incorporated by reference to Alliant Energy Corporation's
Annual Report on Form 10-K for the year ended December 31, 1998, as amended
(File No. 1-9894). All other schedules are omitted because they are not
applicable or not require, or because the required information is shown either
in the consolidated financial statements or in the notes thereto.

     (c) Reports, Opinions or Appraisals. Not applicable.

ITEM 22. UNDERTAKINGS.

     (a) The undersigned Registrant hereby undertakes:

          (1) To file, during any period in which offers or sales are being
     made, a post-effective amendment to this Registration Statement:

             (i) To include any prospectus required by Section 10(a)(3) of the
        Securities Act of 1933;

             (ii) To reflect in the prospectus any facts or events arising after
        the effective date of the Registration Statement (or the most recent
        post-effective amendment thereof) which, individually or in the
        aggregate, represent a fundamental change in the information set forth
        in the Registration Statement. Notwithstanding the foregoing, any
        increase or decrease in volume of securities offered (if the total
        dollar value of securities offered would not exceed that which was
        registered) and any deviation from the low or high end of the estimated
        maximum offering range

                                      II-1
<PAGE>   50

        may be reflected in the form of prospectus filed with the Commission
        pursuant to Rule 424(b) if, in the aggregate, the changes in volume and
        price represent no more than a 20% change in the maximum aggregate
        offering price set forth in the "Calculation of Registration Fee" table
        in the effective Registration Statement;

             (iii) To include any material information with respect to the plan
        of distribution not previously disclosed in the Registration Statement
        or any material change to such information in the registration
        statement.

        Provided, however, that paragraphs (a)(1)(i) and (a)(1)(ii) do not apply
        if the Registration Statement is on Form S-3 or Form S-8, and the
        information required to be included in a post-effective amendment by
        those paragraphs is contained in periodic reports filed by the
        Registrant pursuant to Section 13 or Section 15(d) of the Securities
        Exchange Act of 1934 that are incorporated by reference in the
        Registration Statement.

          (2) That, for the purpose of determining any liability under the
     Securities Act of 1933, each such post-effective amendment shall be deemed
     to be a new Registration Statement relating to the securities offered
     therein, and the offering of such securities at that time shall be deemed
     to be the initial bona fide offering thereof.

          (3) To remove from registration by means of a post-effective amendment
     any of the securities being registered which remain unsold at the
     termination of the offering.

     (b) Each of the undersigned Registrants hereby undertakes that, for
purposes of determining any liability under the Securities Act of 1933, each
filing of the Registrant's annual report pursuant to Section 13(a) or Section
15(d) of the Securities Exchange Act of 1934 that is incorporated by reference
in the Registration Statement shall be deemed to be a new Registration Statement
relating to the securities offered therein, and the offering of such securities
at that time shall be deemed to be the initial bona fide offering thereof.

     (c) Insofar as indemnification for liabilities arising under the Securities
Act of 1933 may be permitted to directors, officers and controlling persons of
the Registrants pursuant to the foregoing provisions, or otherwise, the
Registrants have been advised that in the opinion of the Securities and Exchange
Commission such indemnification is against public policy as expressed in the
Securities Act of 1933 and is, therefore, unenforceable. In the event that a
claim for indemnification against such liabilities (other than the payment by a
Registrant of expenses incurred or paid by a director, officer or controlling
person of a Registrant in the successful defense of any action, suit or
proceeding) is asserted by such director, officer or controlling person in
connection with the securities being registered, each of the Registrants will,
unless in the opinion of its counsel the matter has been settled by controlling
precedent, submit to a court of appropriate jurisdiction the question whether
such indemnification by it is against public policy as expressed in the Act and
will be governed by the final adjudication of such issue.

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

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

                                      II-2
<PAGE>   51

                                   SIGNATURES

     Pursuant to the requirements of the Securities Act of 1933, the Registrant
has duly caused this Registration Statement to be signed on its behalf by the
undersigned, thereunto duly authorized, in the City of Madison, State of
Wisconsin, on December 15, 1999.

                                          ALLIANT ENERGY RESOURCES, INC.

                                          By:   /s/ ERROLL B. DAVIS, JR.
                                            ------------------------------------
                                                    Erroll B. Davis, Jr.
                                                  Chief Executive Officer

     Pursuant to the requirements of the Securities Act of 1933, this
Registration Statement has been signed by the following persons in the
capacities and on the dates indicated.

<TABLE>
<CAPTION>
                  SIGNATURE                                    TITLE                         DATE
                  ---------                                    -----                         ----
<C>                                              <S>                                   <C>
          /s/ ERROLL B. DAVIS, JR.               Chief Executive Officer and           December 15, 1999
- ---------------------------------------------    Director (Principal Executive
            Erroll B. Davis, Jr.                 Officer)

            /s/ EDWARD M. GLEASON                Vice President-Treasurer and          December 15, 1999
- ---------------------------------------------    Corporate Secretary (Principal
              Edward M. Gleason                  Financial Officer)

             /s/ JOHN E. EBRIGHT                 Vice President-Controller             December 15, 1999
- ---------------------------------------------    (Principal Accounting Officer)
               John E. Ebright

                      *                          Director                              December 15, 1999
- ---------------------------------------------
               Alan B. Arends

                      *                          Director                              December 15, 1999
- ---------------------------------------------
              Rockne G. Flowers

                      *                          Director                              December 15, 1999
- ---------------------------------------------
               Joyce L. Hanes

                      *                          Director                              December 15, 1999
- ---------------------------------------------
                   Lee Liu

                      *                          Director                              December 15, 1999
- ---------------------------------------------
             Katharine C. Lyall

                      *                          Director                              December 15, 1999
- ---------------------------------------------
              Arnold M. Nemirow

                      *                          Director                              December 15, 1999
- ---------------------------------------------
              Milton E. Neshek

                      *                          Director                              December 15, 1999
- ---------------------------------------------
               Jack R. Newman
</TABLE>

                                      II-3
<PAGE>   52

<TABLE>
<CAPTION>
                  SIGNATURE                                    TITLE                         DATE
                  ---------                                    -----                         ----
<C>                                              <S>                                   <C>
                      *                          Director                              December 15, 1999
- ---------------------------------------------
               Judith D. Pyle

                      *                          Director                              December 15, 1999
- ---------------------------------------------
                Robert D. Ray

                      *                          Director                              December 15, 1999
- ---------------------------------------------
              Robert W. Schlutz

                      *                          Director                              December 15, 1999
- ---------------------------------------------
            Wayne H. Stoppelmoor

                      *                          Director                              December 15, 1999
- ---------------------------------------------
              Anthony R. Weiler

        *By: /s/ ERROLL B. DAVIS, JR.
   ---------------------------------------
            Erroll B. Davis, Jr.
              Attorney-in-fact
</TABLE>

                                      II-4
<PAGE>   53

                                   SIGNATURES

     Pursuant to the requirements of the Securities Act of 1933, the Registrant
has duly caused this Registration Statement to be signed on its behalf by the
undersigned, thereunto duly authorized, in the City of Madison, State of
Wisconsin, on December 15, 1999.

                                          ALLIANT ENERGY CORPORATION

                                          By:   /s/ ERROLL B. DAVIS, JR.
                                            ------------------------------------
                                                    Erroll B. Davis, Jr.
                                               President and Chief Executive
                                                           Officer

     Pursuant to the requirements of the Securities Act of 1933, this
Registration Statement has been signed by the following persons in the
capacities and on the dates indicated.

<TABLE>
<CAPTION>
                  SIGNATURE                                    TITLE                         DATE
                  ---------                                    -----                         ----
<C>                                              <S>                                   <C>
          /s/ ERROLL B. DAVIS, JR.               President and Chief Executive         December 15, 1999
- ---------------------------------------------    Officer and Director (Principal
            Erroll B. Davis, Jr.                 Executive Officer)

            /s/ THOMAS M. WALKER                 Executive Vice President and Chief    December 15, 1999
- ---------------------------------------------    Financial Officer (Principal
              Thomas M. Walker                   Financial Officer)

             /s/ JOHN E. EBRIGHT                 Vice President-Controller             December 15, 1999
- ---------------------------------------------    (Principal Accounting Officer)
               John E. Ebright

                      *                          Director                              December 15, 1999
- ---------------------------------------------
               Alan B. Arends

                      *                          Director                              December 15, 1999
- ---------------------------------------------
              Rockne G. Flowers

                      *                          Director                              December 15, 1999
- ---------------------------------------------
               Joyce L. Hanes

                      *                          Director                              December 15, 1999
- ---------------------------------------------
                   Lee Liu

                      *                          Director                              December 15, 1999
- ---------------------------------------------
             Katharine C. Lyall

                      *                          Director                              December 15, 1999
- ---------------------------------------------
              Arnold M. Nemirow

                      *                          Director                              December 15, 1999
- ---------------------------------------------
              Milton E. Neshek

                      *                          Director                              December 15, 1999
- ---------------------------------------------
               Jack R. Newman
</TABLE>

                                      II-5
<PAGE>   54

<TABLE>
<CAPTION>
                  SIGNATURE                                    TITLE                         DATE
                  ---------                                    -----                         ----
<C>                                              <S>                                   <C>
                      *                          Director                              December 15, 1999
- ---------------------------------------------
               Judith D. Pyle

                      *                          Director                              December 15, 1999
- ---------------------------------------------
                Robert D. Ray

                      *                          Director                              December 15, 1999
- ---------------------------------------------
              Robert W. Schlutz

                      *                          Director                              December 15, 1999
- ---------------------------------------------
            Wayne H. Stoppelmoor

                      *                          Director                              December 15, 1999
- ---------------------------------------------
              Anthony R. Weiler

        *By: /s/ ERROLL B. DAVIS, JR.
   ---------------------------------------
            Erroll B. Davis, Jr.
              Attorney-in-fact
</TABLE>

                                      II-6
<PAGE>   55

                                 EXHIBIT INDEX

<TABLE>
<CAPTION>
EXHIBIT
NUMBER                         DOCUMENT DESCRIPTION
- -------                        --------------------
<S>        <C>
(4.1)      Indenture, dated as of November 4, 1999, among Alliant
           Energy Resources, Inc., Alliant Energy Corporation, as
           Guarantor, and Firstar Bank, N.A., as Trustee.
 (4.2)     First Supplemental Indenture, dated as of November 4, 1999,
           among Alliant Energy Resources, Inc., Alliant Energy
           Corporation, as Guarantor, and Firstar Bank, N.A., as
           Trustee.
 (4.3)     Form of New 7 3/8% Senior Notes due 2009 and related
           Guarantees.
 (4.4)     Purchase Agreement, dated as of November 4, 1999, among
           Alliant Energy Resources, Inc., Alliant Energy Corporation,
           Merrill Lynch, Pierce, Fenner & Smith Incorporated, Morgan
           Stanley & Co. Incorporated, Salomon Smith Barney Inc., ABN
           AMRO Incorporated and Barclays Capital Inc.
 (4.5)     Registration Rights Agreement, dated as of November 9, 1999,
           among Alliant Energy Resources, Inc., Alliant Energy
           Corporation, Merrill Lynch, Pierce, Fenner & Smith
           Incorporated, Morgan Stanley & Co. Incorporated, Salomon
           Smith Barney Inc., ABN AMRO Incorporated and Barclays
           Capital Inc.
 (5)       Opinion of Foley & Lardner (including consent of counsel).
(12)       Statement re computation of ratios of earnings to fixed
           charges.
(23.1)     Consent of Arthur Andersen LLP
(23.2)     Consent of Foley & Lardner (filed as part of Exhibit (5)).
(24)       Powers of attorney.
(25)       Form T-1 Statement of Eligibility and Qualification under
           the Trust Indenture Act of 1939 of Firstar Bank, N.A.
(99.1)     Form of Letter of Transmittal.
(99.2)     Form of Notice of Guaranteed Delivery.
(99.3)     Guidelines for Certification of Taxpayer Identification
           Number on Substitute Form W-9.
(99.4)     Form of Letter to Clients.
(99.5)     Form of Instructions to Registered Holder and/or DTC
           Participant from Beneficial Owners.
(99.6)     Form of Letter to Nominees.
</TABLE>

                                       E-1


                                                                  Execution Copy




                         ALLIANT ENERGY RESOURCES, INC.,
                                    Company,


                           ALLIANT ENERGY CORPORATION,
                                  as Guarantor

                                       and

                               FIRSTAR BANK, N.A.,
                                   as Trustee




                                    INDENTURE


                          DATED AS OF NOVEMBER 4, 1999



                       Providing for the Issuance of Debt
                              Securities in Series
                               of Guaranteed Debt


<PAGE>

                               ANNOTATED TIE-SHEET

          Reconciliation  and tie between Indenture dated as of November 4, 1999
and the  Trust  Indenture  Act of 1939.  This  reconciliation  section  does not
constitute part of the Indenture.

                                                           INDENTURE
TRUST INDENTURE ACT OF 1939 SECTION                        SECTION
- ---------------------------------------------------------- ---------------------

310(a)(1) Eligibility/Qualification of Trustee             7.10
   (a)(2)                                                  7.10
   (a)(3) (We don't have Co-trustees)                      Inapplicable
   (b)                                                     7.08, 7.10
   (c)                                                     7.10
311(a) Preferential Collection of Claims Against Obligor   7.11
   (b)                                                     7.11
   (c)                                                     Inapplicable
312(a)                                                     2.07, 4.06
   (b)                                                     10.04
   (c)                                                     10.04
313(a) Reports by Indenture Trustee                        7.06,
   (b)(1)                                                  7.06(a)
   (b)(2)                                                  7.06(a)
   (c)                                                     10.03
   (d)                                                     7.06(b)
314(a) Reports by Obligor; Evidence of Compliance with
       Indenture Provisions                                Inapplicable
   (b)                                                     Inapplicable; No
                                                            Pledge of Property
   (c)(1)                                                  10.05
   (c)(2)                                                  10.05
   (c)(3) (Accountants/Conditions Precedent)               Inapplicable
   (d) Fair Value Certificate                              Inapplicable
   (e)                                                     10.06
   (f)                                                     Inapplicable
315(a) Duties and Responsibility of the Trustee            7.01(b)
   (b)                                                     7.05, 10.03
   (c)                                                     7.01(a)
   (d)                                                     6.05, 7.01(c)
   (e)                                                     6.07, 6.11
316(a)(last sentence) Directions and Waivers by
       Holders/Right to Payment                            2.11
   (a)(1)(A)                                               6.05
   (a)(1)(B)                                               6.04
   (a)(2) Consent to Postponement of Interest Payments     Inapplicable


                                       i
<PAGE>

                                                           INDENTURE
TRUST INDENTURE ACT OF 1939 SECTION                        SECTION
- ---------------------------------------------------------- ---------------------

   (b)                                                     6.07
   (c)                                                     10.02(e)
317(a)(1) Special Powers of Trustee                        6.01,6.02,6.03,6.08
   (a)(2)                                                  6.09
   (b)                                                     2.06
318(a)                                                     11.01
   (c)                                                     11.01



                                       ii

<PAGE>

                               TABLE OF CONTENTS*

                                                                            Page
                                                                            ----

              ARTICLE 1. DEFINITIONS AND INCORPORATION BY REFERENCE

Section 1.01  Definitions......................................................1
Section 1.02  Other Definitions................................................5
Section 1.03  Incorporation by Reference of Trust Indenture Act................5
Section 1.04  Rules of Construction............................................6

                         ARTICLE 2. THE SECURITIES

Section 2.01  Issuable in Series...............................................6
Section 2.02  Establishment of Terms and Form of Series of Securities and
                Guarantees..................7
Section 2.03  Execution, Authentication, and Delivery.........................10
Section 2.04  Registrar and Paying Agent......................................12
Section 2.05  Payment on Securities...........................................12
Section 2.06  Paying Agent to Hold Money in Trust.............................13
Section 2.07  Securityholder Lists; Ownership of Securities...................14
Section 2.08  Transfer and Exchange...........................................14
Section 2.09  Replacement Securities..........................................16
Section 2.10  Outstanding Securities..........................................17
Section 2.11  Treasury Securities.............................................17
Section 2.12  Temporary Securities............................................18
Section 2.13  Cancellation....................................................18
Section 2.14  Defaulted Interest..............................................19
Section 2.15  Global Securities...............................................19
Section 2.16  Unconditional Guarantee.........................................20
Section 2.17  Execution of Guarantees.........................................21
Section 2.18  Assumption by Guarantor.........................................22

                           ARTICLE 3. REDEMPTION

Section 3.01  Notice to the Trustee...........................................22
Section 3.02  Selection of Securities to be Redeemed..........................23
Section 3.03  Notice of Redemption............................................23
Section 3.04  Effect of Notice of Redemption..................................24
Section 3.05  Deposit of Redemption Price.....................................24
Section 3.06  Securities Redeemed in Part.....................................24

_______________
*    This Table of Contents does not constitute part of this Indenture.


                                      iii
<PAGE>
                                                                            Page
                                                                            ----

                           ARTICLE 4. COVENANTS

Section 4.01  Payment of Securities...........................................25
Section 4.02  Maintenance of Office or Agency.................................25
Section 4.03  Limitations on Liens............................................26
Section 4.04  Limitation on Sale and Lease-Back Transactions..................29
Section 4.05  Money for Securities Payments to be Held in Trust...............29
Section 4.06  Company and the Guarantor to Furnish Trustee Names and
                Addresses of Holders..........................................31
Section 4.07  Company Statement as to Compliance; Notice of Certain Defaults..31
Section 4.08  Guarantor Statement as to Compliance; Notice of Certain
                Defaults......................................................32
Section 4.09  Maintenance of Properties.......................................33
Section 4.10  Insurance.......................................................33
Section 4.11  Existence.......................................................33
Section 4.12  Payment of Taxes and Other Claims...............................33
Section 4.13  Waiver of Certain Covenants.....................................34

                ARTICLE 5. CONSOLIDATION, MERGER AND SALES

Section 5.01  Company May Consolidate, etc., Only on Certain Terms............34
Section 5.02  Successor Person Substituted for Company........................35
Section 5.03  Guarantor May Consolidate, etc., Only on Certain Terms..........35
Section 5.04  Successor Person Substituted for Guarantor......................36
Section 5.05  Assumption by Guarantor.........................................36

                     ARTICLE 6. DEFAULTS AND REMEDIES

Section 6.01  Events of Default...............................................37
Section 6.02  Acceleration....................................................39
Section 6.03  Other Remedies Available to Trustee.............................39
Section 6.04  Waiver of Existing Defaults.....................................39
Section 6.05  Control by Majority.............................................39
Section 6.06  Limitation on Suits by Securityholders..........................40
Section 6.07  Rights of Holders to Receive Payment............................40
Section 6.08  Collection Suits by Trustee.....................................40
Section 6.09  Trustee May File Proofs of Claim................................41
Section 6.10  Priorities......................................................41
Section 6.11  Undertaking for Costs...........................................41

                            ARTICLE 7. TRUSTEE

Section 7.01  Duties of Trustee...............................................42
Section 7.02  Rights of Trustee...............................................43
Section 7.03  Individual Rights of Trustee....................................43


                                       iv
<PAGE>

                                                                            Page
                                                                            ----

Section 7.04  Trustee's Disclaimer............................................43
Section 7.05  Notice of Defaults..............................................44
Section 7.06  Reports by Trustee to Holders...................................44
Section 7.07  Compensation and Indemnity......................................44
Section 7.08  Replacement of Trustee..........................................45
Section 7.09  Successor Trustee, Agents by Merger, etc........................47
Section 7.10  Eligibility; Disqualification...................................47
Section 7.11  Preferential Collection of Claims Against the Company...........47

               ARTICLE 8. DEFEASANCE AND COVENANT DEFEASANCE

Section 8.01  Company's and Guarantor's Option to Effect Defeasance or
                Covenant Defeasance...........................................48
Section 8.01  Defeasance and Discharge........................................48
Section 8.03  Covenant Defeasance.............................................49
Section 8.04  Conditions to Defeasance or Covenant Defeasance.................49
Section 8.05  Deposited Money and U.S. Government Obligations to be Held in
                Trust; Other Miscellaneous Provisions.........................51
Section 8.06  Reinstatement...................................................52

        ARTICLE 9. AMENDMENTS AND WAIVERS; SUPPLEMENTAL INDENTURES

Section 9.01  Without Consent of Holders......................................52
Section 9.02  With Consent of Holders.........................................53
Section 9.03  Execution of Supplemental Indentures............................54
Section 9.04  Effect of Supplemental Indentures...............................55
Section 9.05  Reference in Securities to Supplemental Indentures..............55
Section 9.06  Compliance with Trust Indenture Act.............................55
Section 9.07  Revocation and Effect of Consents...............................55
Section 9.08  Notation on or Exchange of Securities...........................56
Section 9.09  Trustee Protected...............................................56

                         ARTICLE 10. MISCELLANEOUS

Section 10.01  Trust Indenture Act Controls...................................56
Section 10.02  Acts of Holders................................................56
Section 10.03  Notices........................................................58
Section 10.04  Communication by Holders with Other Holders....................59
Section 10.05  Certificate and Opinion as to Conditions Precedent.............59
Section 10.06  Statements Required in Certificate or Opinion..................59
Section 10.07  Rules by Trustee and Agents....................................60
Section 10.08  Legal Holidays.................................................60
Section 10.09  Governing Law..................................................60
Section 10.10  No Adverse Interpretation of Other Agreements..................60
Section 10.11  No Recourse Against Others.....................................60


                                       v
<PAGE>

                                                                            Page
                                                                            ----

Section 10.12  Execution in Counterparts......................................60
Section 10.13  Currencies.....................................................61

              ARTICLE 11. REPAYMENT AT THE OPTION OF HOLDERS

Section 11.01  Applicability of Article.......................................61



                                       vi
<PAGE>

          INDENTURE dated as of November 4, 1999 among ALLIANT ENERGY RESOURCES,
INC., a Wisconsin  corporation (the "Company"),  ALLIANT ENERGY  CORPORATION,  a
Wisconsin corporation as guarantor (the "Guarantor"), and FIRSTAR BANK, N.A., as
Trustee (the "Trustee").


                    RECITALS OF THE COMPANY AND THE GUARANTOR

          The Company has duly  authorized  the  execution  and delivery of this
Indenture to provide for the  issuance  from time to time of its  unsecured  and
unsubordinated   debentures,   notes  or   other   evidences   of   indebtedness
("Securities") (as defined herein) as herein provided.

          The Guarantor has duly  authorized  the execution and delivery of this
Indenture and deems it appropriate from time to time to issue its Guarantees (as
defined herein) of the Securities on the terms herein provided.

          All things  necessary to make this Indenture a valid  agreement of the
Company and the Guarantor, in accordance with its terms, have been done.

                  NOW, THEREFORE, THIS INDENTURE WITNESSETH:

          For and in  consideration  of the  premises  and the  purchase  of the
Securities by the Holders (as defined herein) thereof, it is mutually covenanted
and agreed as follows  for the equal and  ratable  benefit of the Holders of the
Securities:


                                   ARTICLE 1.

                   DEFINITIONS AND INCORPORATION BY REFERENCE

          Section 1.01 DEFINITIONS.

          "Affiliate"  means any person  directly or indirectly  controlling  or
controlled by, or under direct or indirect common control with, the Company,  or
the Guarantor, as the case may be.

          "Agent" means any Paying Agent,  Registrar or transfer agent as may be
appointed by the Company from time to time.

          "Attributable  Debt" means,  with respect to any  particular  Sale and
Lease-Back  Transaction,  at  the  time  of  determination,  the  present  value
(discounted at the rate of interest  implicit in the  transaction  determined in
accordance with generally accepted  accounting  principles) of the obligation of
the lessee for net rental payments during the

<PAGE>

remaining  term of the lease  included  in the Sale and  Lease-Back  Transaction
(including  any period for which such  lease has been  extended  or may,  at the
option of the lessor, be extended).

          "Authorized  Newspaper" means a newspaper of general  circulation,  in
the official  language of the country of publication or in the English language,
customarily   published  on  each  business  day.  Whenever   successive  weekly
publications in an Authorized Newspaper are required hereunder, they may be made
(unless  otherwise  expressly  provided herein) on the same or different days of
the week and in the same or different Authorized Newspapers.

          "Board of Directors" mean the Board of Directors of the Company or the
Guarantor, as the case may be, or any duly authorized committee thereof.

          "Board  Resolution"  means  a copy of a  resolution  of the  Board  of
Directors,  certified by the Secretary or an Assistant  Secretary of the Company
or the  Guarantor,  as the case may be,  to have  been  adopted  by the Board of
Directors and to be in full force and effect on the date of the certificate.

          "Company"  means the  party  named as such in this  Indenture  until a
successor replaces it and thereafter means the successor.

          "Company Order" means an order signed by two Officers of the Company.

          "Consolidated  Net  Tangible  Assets"  is  the  total  of  all  assets
(including  revaluations  thereof as a result of  commercial  appraisals,  price
level  restatement  or  otherwise)  appearing  on the most  recent  consolidated
balance sheet of the Guarantor as of the date of  determination  (which  balance
sheet  shall  be the most  recent  balance  sheet  filed  with the SEC,  or if a
revaluation  has occurred,  the balance sheet  prepared in connection  with such
revaluation  if it is more recent than the most recent  balance sheet filed with
the SEC), net of applicable  reserves and  deductions,  but excluding  goodwill,
trade names, trademarks,  patents,  unamortized debt discount and all other like
intangible   assets   (which  term  shall  not  be  construed  to  include  such
revaluations), less the aggregate of the consolidated current liabilities of the
Guarantor appearing on such balance sheet.

          "Debt"  means all of the  Company's  obligations  evidenced  by bonds,
debentures,  notes or similar  evidences of  indebtedness in each case for money
borrowed.

          "Depositary"  means,  with respect to  Securities  of any Series,  for
which the  Company  shall  determine  that such  Securities  will be issued as a
Global  Security,  The  Depository  Trust Company,  New York, New York,  another
clearing  agency,  or any successor  registered  as a clearing  agency under the
Exchange Act, or other applicable


                                       2
<PAGE>

statute or regulation,  which, in each case,  shall be designated by the Company
pursuant to either Section 2.02 or 2.15.

          "Default" means any event which is, or after notice or passage of time
would be, an Event of Default.

          "Exchange Act" means the Securities Exchange Act of 1934, as amended.

          "Global Security" means,  with respect to any Series of Securities,  a
Security  executed by the Company and delivered by the Trustee to the Depositary
or  pursuant  to the  Depositary's  instruction,  all  in  accordance  with  the
Indenture,  which  shall  be  registered  in the name of the  Depositary  or its
nominee.

          "Guarantee"  means the  agreement of the  Guarantor  in the form,  set
forth in Section 2.16 hereof, to be endorsed on the Securities authenticated and
delivered hereunder.

          "Guarantor"  means the party named as such in this  Indenture  until a
successor replaces it and thereafter means the successor.

          "Guarantor  Order"  means  an  order  signed  by two  Officers  of the
Guarantor.

          "Holder"  or  "Securityholder"  means  a  bearer  of  an  Unregistered
Security  or of a  coupon  appertaining  thereto  or a person  in  whose  name a
Registered Security is registered on the Registrar's books.

          "Indenture"  means this Indenture as amended or supplemented from time
to time and shall include the forms and terms of particular Series of Securities
established as contemplated hereunder.

          "Interest"  when used  with  respect  to an  Original  Issue  Discount
Security which by its terms bears interest only after  maturity,  means interest
payable after maturity.

          "Lien" means any mortgage,  lien,  pledge,  security interest or other
encumbrance.  The term "Lien" does not  include  any  easements,  rights-of-way,
restrictions  and other  similar  encumbrances  and  encumbrances  consisting of
zoning restrictions,  leases, subleases, licenses, sublicenses,  restrictions on
the use of property or defects in the title thereto.

          "Officer" means the President,  the Chief Executive Officer,  any Vice
President,  the Treasurer, any Assistant Treasurer, the Secretary, any Assistant
Secretary


                                       3
<PAGE>

or the  Controller or any Assistant  Controller of the Company or the Guarantor,
as the case may be.

          "Officers'  Certificate" means a certificate signed by two Officers of
the Company or the Guarantor, as the case may be.

          "Opinion of Counsel"  means a written  opinion of legal counsel who is
acceptable to the Company,  the Guarantor and the Trustee. The counsel may be an
employee of or counsel to the Company or the Trustee.

          "Original  Issue Discount  Security" means any Security which provides
for an amount  less  than the  stated  principal  amount  thereof  to be due and
payable upon  declaration of  acceleration of the maturity  thereof  pursuant to
Section 6.02.

          "Physical  Security" means any Security in permanent and  certificated
form.

          "Principal"  of a Security  means the principal of the Security  plus,
when appropriate, the premium, if any, on the Security.

          "Registered   Security"  means  any  Security  issued   hereunder  and
registered as to principal and interest by the Registrar.

          "Responsible Officer" when used with respect to the Trustee, means the
chairman  or any  vice-chairman  of the  board of  directors  or  trustees,  the
chairman  or any  vice-chairman  of the  executive  committee  of the  board  of
directors or trustees, the president, any executive  vice-president,  any senior
vice-president, any vice-president, any assistant vice-president, the treasurer,
the secretary, any trust officer, any second or assistant vice-president, or any
other  officer  or  assistant  officer  of the  Trustee  customarily  performing
functions  similar to those  performed  by the  persons who at the time shall be
such officers,  respectively,  or to whom any corporate trust matter is referred
because of his knowledge of and familiarity with a particular subject.

          "Sale  and  Lease-Back  Transaction"  means any  arrangement  with any
entity  providing  for the lease by the  Company of any of the  assets  that the
Company  has sold or  transferred  or that the  Company  has  agreed  to sell or
transfer to that entity.

          "SEC" means the Securities and Exchange Commission.

          "Series" or "Series of Securities" means a series of Securities.

          "Securities"  means the debentures,  notes or other obligations of the
Company issued, authenticated and delivered under this Indenture.


                                       4
<PAGE>

          "Subsidiary"  means any  corporation  more than 50% of the outstanding
voting stock of which is owned, directly or indirectly, by the Company and/or by
one or more other Subsidiaries.  For purposes of such definition, "voting stock"
means stock  ordinarily  having  voting  power for the  election  of  directors,
whether at all times or only so long as no senior class of stock has such voting
power by reason of any contingency.

          "TIA"  means  the  Trust  Indenture  Act of 1939 (15  U.S.C.  Sections
777aaa-777bbb) as in effect on the date of this Indenture, except as provided in
Section 9.03.

          "Trustee"  means the  party  named as such in this  Indenture  until a
successor replaces it and, thereafter,  means the successor and if, at any time,
there is more than one Trustee, "Trustee" as used with respect to the Securities
of any Series shall mean the Trustee with respect to that Series.

          "U.S.  Person"  means a citizen,  national  or  resident of the United
States,  a  corporation,  partnership or other entity created or organized in or
under the laws of the United States or any political  subdivision thereof, or an
estate or trust  which is  subject  to United  States  federal  income  taxation
regardless of its source of income.

          "Unregistered  Security" means any Security issued  hereunder which is
not a Registered Security.

          "Yield to  Maturity"  means the yield to maturity,  calculated  by the
Company at the time of issuance of a Series of Securities or, if applicable,  at
the most recent  determination  of interest  on such Series in  accordance  with
accepted financial practice.

          Section 1.02 OTHER DEFINITIONS.

          INDENTURE TERM                                   SECTION

          "Act of Holders"....................................10.02
          "Defeased Securities"................................8.01
          "Event of Default"...................................6.01
          "Legal Holiday".....................................10.08
          "Paying Agent".......................................2.04
          "Registrar"..........................................2.04
          "U.S. Government Obligations"........................8.04

          Section  1.03  INCORPORATION  BY  REFERENCE  OF TRUST  INDENTURE  ACT.
Whenever  this  Indenture  refers to a provision  of the TIA,  the  provision is
incorporated  by reference in and made a part of this  Indenture.  The following
TIA terms used in this Indenture have the following meanings:


                                       5
<PAGE>


          "Commission" means the SEC.

          "indenture securities" means the Securities.

          "indenture security holder" means a Holder or a Securityholder.

          "indenture to be qualified" means this Indenture.

          "indenture trustee" or "institutional trustee" means the Trustee.

          "obligor"  on the  indenture  securities  means  the  Company  and the
Guarantor, if and as long as the Guarantor is liable with respect to any payment
of principal  of,  premium,  if any, and interest on any Security as a result of
the  Company's  default in the timely  payment of any amount due with respect to
any Security.

          All other  terms used in this  Indenture  that are defined by the TIA,
defined by TIA reference to another statute or defined by SEC rule under the TIA
have the meanings assigned to them therein.

          Section  1.04  RULES OF  CONSTRUCTION.  Unless the  context  otherwise
requires:

                    (1) a term has the meaning assigned to it;

                    (2) an accounting term not otherwise defined has the meaning
          assigned  to it  in  accordance  with  generally  accepted  accounting
          principles;

                    (3) words in the singular  include the plural,  and words in
          the plural include the singular; and

                    (4) the words  "herein,"  "hereof" and "hereunder" and other
          words of similar  import refer to this Indenture as a whole and not to
          any particular Article, Section or other subdivision.


                                   ARTICLE 2.

                                 THE SECURITIES

          Section 2.01  ISSUABLE IN SERIES.  The aggregate  principal  amount of
Securities  which may be  authenticated  and delivered  under this  Indenture is
unlimited.  The  Securities  may be issued in one or more  Series.  There may be
Registered  Securities  and  Unregistered  Securities  within a  Series  and the
Unregistered  Securities may be subject to such  restrictions,  and contain such
legends, as may be required by United


                                       6
<PAGE>

States  laws and  regulations.  All Series of  Securities  shall be equally  and
ratably entitled to the benefits of this Indenture.

          Section 2.02  ESTABLISHMENT  OF TERMS AND FORM OF SERIES OF SECURITIES
AND GUARANTEES.

          (a) At or prior to the  issuance  of any  Series  of  Securities,  the
following  shall be  established by a Company Board  Resolution,  by one or more
Officers  of  the  Company  pursuant  to a  Company  Board  Resolution,  or by a
supplemental indenture hereto:

                    (1) the title of the  Securities  of the Series (which title
          shall  distinguish the Securities of the Series from the Securities of
          any other Series and from any other securities issued by the Company);

                    (2) any limit  upon the  aggregate  principal  amount of the
          Securities  of the Series  which may be  authenticated  and  delivered
          under this  Indenture  (which  limit shall not  pertain to  Securities
          authenticated  and delivered  upon  registration  of,  transfer of, in
          exchange for or in lieu of, other Securities of the Series pursuant to
          Section 2.08, 2.09, 2.12, 3.06 or 9.08);

                    (3)  the  date  or  dates  on  which  the  principal  of the
          Securities of the Series is payable;

                    (4) the rate or rates  (which may be fixed or  variable)  at
          which the Securities of the Series shall bear interest, if any, or the
          manner  of  determining  such rate or rates of  interest,  the date or
          dates from which such interest  shall accrue,  the dates on which such
          interest shall be payable, and, with respect to Registered Securities,
          the record date for the interest payable on any interest payment date,
          and the basis upon which  interest  shall be  calculated if other than
          that of a 360-day year of twelve 30-day months;

                    (5) the place or places where the  principal of and interest
          on Registered and Unregistered, if any, Securities of the Series shall
          be payable;

                    (6) the period or periods within which,  the price or prices
          at which,  and the terms and conditions upon which,  Securities of the
          Series  may be  redeemed,  in whole or in part,  at the  option of the
          Company;

                    (7) the  obligation,  if any,  of the  Company  to redeem or
          purchase  Securities  of the Series  pursuant to any  sinking  fund or
          analogous  provisions or upon the happening of a specified event or at
          the option of a Holder thereof and the period or periods within which,
          the price or prices at which, and the terms and


                                       7
<PAGE>

          conditions  upon which,  Securities of the Series shall be redeemed or
          purchased, in whole or in part, pursuant to such obligation;

                    (8)  if in  other  than  denominations  of  $1,000  and  any
          integral  multiple  thereof,  the denominations in which Securities of
          the Series shall be issuable;

                    (9) if other than the principal amount thereof,  the portion
          of the  principal  amount of  Securities  of the Series which shall be
          payable upon  declaration  of  acceleration  of the  maturity  thereof
          pursuant to Section 6.02;

                    (10) whether  Securities  of the Series shall be issuable as
          Registered  Securities  or  Unregistered  Securities  (with or without
          interest  coupons),  or both, and any  restrictions  applicable to the
          offering, sale or delivery of Unregistered Securities and whether, and
          the terms  upon  which,  Unregistered  Securities  of a Series  may be
          exchanged for Registered Securities of the same Series and vice versa,
          and whether any liquidated damages are to be paid if the Company fails
          to file the appropriate registration statements, or fails to have such
          registration  statements  declared  effective  within a specified time
          period;

                    (11) the form or forms of the  Securities  (or forms thereof
          if Unregistered  and Registered  Securities  shall be issuable in such
          Series),  including  such legends as may be required by United  States
          laws or  regulations,  the form of any  coupons  or  temporary  Global
          Security  which  may be  issued  and the  forms  of any  certificates,
          opinions or other documents  which may be required  hereunder or under
          United States laws or  regulations  in  connection  with the offering,
          sale, delivery or exchange of Unregistered Securities;

                    (12) whether the  Securities of the Series are issuable as a
          Global  Security and, in such case, the identity of the Depositary for
          such Series;

                    (13) if other  than  such  coin or  currency  of the  United
          States  of  America  as at the time of  payment  is legal  tender  for
          payment of public or private  debts,  the coin or currency,  including
          composite currency,  in which payment of the principal of and premium,
          if any, or interest on the Securities of the Series shall be payable;

                    (14) if the  principal of or interest on the  Securities  of
          the Series are to be  payable,  at the  election  of the  Company or a
          Holder  thereof,  in a coin or  currency  other than that in which the
          Securities are stated to be payable,  the coin or currency,  including
          composite currency,  in which payment of the principal of and premium,
          if any,  or  interest  on  Securities  of such Series as to which such


                                       8
<PAGE>


          election is made shall be payable, the period or periods within which,
          and the terms and conditions upon which, such election may be made;

                    (15) if the amount of payments of  principal  of or interest
          on the Securities of the Series may be determined with reference to an
          index  based  on  coin or  currency  other  than  that  in  which  the
          Securities are stated to be payable,  the manner in which such amounts
          shall be determined; and

                    (16) any other terms of the Series (which terms shall not be
          inconsistent  with the  provisions of this  Indenture),  including any
          terms which may be required by or advisable  under United  States laws
          or  regulations  or  advisable  in  connection  with the  marketing of
          Securities of that Series.

          (b) All Securities of any one Series shall be substantially  identical
except  as to  denomination  and the  rate or  rates of  interest,  if any,  and
maturity and currency and, except as may otherwise be provided in or pursuant to
a Company  Board  Resolution  or a  certificate  delivered  pursuant  to Section
2.02(c) or in an indenture supplemental hereto. All Securities of any one Series
need not be issued at the same time, and, unless  otherwise  provided,  a Series
may be reopened for issuances of additional Securities of such Series.

          (c) If the terms and form or forms of any  Series  of  Securities  are
established  by or pursuant to a Company  Board  Resolution,  the Company  shall
deliver  a copy of such  Board  Resolution  to the  Trustee  at or  prior to the
issuance of such Series with (1) the form or forms of the Securities  which have
been  approved  attached  thereto;  or (2) if such Board  Resolution  authorizes
specified Officers to establish the terms and form or forms of the Securities, a
certificate of such Officers or a supplemental indenture signed by such Officers
establishing or providing for the  establishment  of the terms and form or forms
of the  Securities,  with such form or forms of the  Securities  attached to the
certificate or supplemental indenture establishing such form or forms.

          (d) Unregistered  Securities and their coupons must have substantially
the following  statement on their face: "Any United States person who holds this
obligation  will be subject to  limitations  under the United  States income tax
laws,  including  the  limitations  provided in Sections  165(j) and 1287 of the
Internal  Revenue  Code of  1986,  as  amended,"  or  such  other  statement  or
statements as determined by the Company.

          (e) At or prior to the  issuance of any of the  Guarantees,  the exact
form and terms of such Guarantees,  which shall comply with the terms of Section
2.16 hereof, shall be established by an Officers' Certificate of the Guarantor.


                                       9
<PAGE>

          Section 2.03  EXECUTION, AUTHENTICATION, AND DELIVERY.

          (a) The Securities  shall be executed on behalf of the Company by, and
the Guarantees endorsed thereon shall be executed on behalf of the Guarantor by,
its  President,  Chief  Executive  Officer  or any  Vice  President,  and by its
Treasurer or an Assistant Treasurer or its Secretary or an Assistant  Secretary.
Signatures  shall be manual or facsimile.  The Company's  seal, if any, shall be
reproduced on the Securities and may, but need not, be attested. The Guarantor's
seal, if any,  shall be reproduced on the  Guarantees  and may, but need not, be
attested.  The  coupons of  Unregistered  Securities  shall  bear the  facsimile
signature of the Treasurer or an Assistant Treasurer of the Company.

          (b) If an Officer  whose  signature  is on a Security,  a Guarantee or
coupon no longer holds that office at the time the Security or the  Guarantee is
authenticated, the Security, Guarantee or coupon shall be valid nevertheless.

          (c)  A  Security  or  Guarantee  thereon  shall  not  be  valid  until
authenticated by the manual signature of the Trustee or an authenticating agent,
and no coupon shall be valid until the Security to which it appertains  has been
so authenticated.  Such signature shall be conclusive evidence that the Security
has been authenticated under this Indenture. Each Unregistered Security shall be
dated the date of its authentication.

          (d) The  Trustee (or an  authenticating  agent  appointed  pursuant to
Section  2.03(f))  shall at any time,  and from time to time,  authenticate  and
deliver  Securities  of any Series  executed  and  delivered by the Company with
Guarantees  endorsed  thereon  for  original  issue  in an  unlimited  aggregate
principal amount,  upon receipt by the Trustee (or an  authentication  agent) of
(i) a Company  Order or  directions  pursuant  to such a  Company  Order for the
authentication  and delivery of such  Securities;  (ii) if the terms and form or
forms of the Securities of such Series have been established by or pursuant to a
Board  Resolution  or  supplemental  indenture as permitted  pursuant to Section
2.02,  a copy of such  Board  Resolution  and any  certificate  or  supplemental
indenture that may be required  pursuant to Section 2.02(c);  (iii) if the terms
and  form  or  forms  of the  Securities  of such  Series  have  been  otherwise
established  by or pursuant  to a  supplemental  indenture,  a copy of such duly
executed supplemental  indenture and any documents required by such supplemental
indenture; (iv) an Officers' Certificate of the Guarantor establishing the terms
of the Guarantees; and (v) an Opinion of Counsel stating substantially:

                    (1) if the form of such  Securities has been  established by
          or pursuant to a Board  Resolution as permitted by Section 2.02,  that
          such form has been  established in conformity  with provisions of this
          Indenture;


                                       10
<PAGE>

                    (2) if the terms of such Securities have been established by
          or pursuant to a Board  Resolution as permitted by Section 2.02,  that
          such terms have been established, or provision has been made for their
          establishment,  in conformity  with the provisions of this  Indenture;
          and

                    (3) that such Securities and Guarantees,  when authenticated
          and delivered by the Trustee (or an  authenticating  agent) and issued
          by the  Company or the  Guarantor,  as  applicable,  in the manner and
          subject to any conditions  specified in such Opinion of Counsel,  will
          constitute valid and legally binding obligations of the Company or the
          Guarantor, as applicable,  enforceable in accordance with their terms,
          subject to bankruptcy,  insolvency,  reorganization  and other laws of
          general  applicability  relating to or affecting  the  enforcement  of
          creditors'  rights and to general equity principles and subject to the
          enforcement of certain  provisions thereof which may be limited by the
          laws of the State of Wisconsin,  but the inclusion of such  provisions
          does not affect the validity of the Securities or the  Guarantees,  as
          the  case  may  be,  contain  legally  adequate   provisions  for  the
          realization  of  the  principal  legal  rights  and  benefits  offered
          thereby.

          If  the  terms  and  form  or  forms  of  such  Securities  have  been
established  by or pursuant to a Board  Resolution as permitted by Section 2.02,
the Trustee shall not be required to  authenticate  such Securities if the issue
of such  Securities  pursuant to this  Indenture  will  materially and adversely
affect the Trustee's own rights,  duties or immunities  under the Securities and
this  Indenture or otherwise in a manner which is not  reasonably  acceptable to
the Trustee.

          Notwithstanding  the  foregoing,  until the Company has  notified  the
Trustee and the Registrar that, as a result of the action described, the Company
would not suffer adverse  consequences under the provisions of United States law
or regulations in effect at the time of the delivery of Unregistered Securities,
(i)  delivery of  Unregistered  Securities  will be made only outside the United
States and its possessions, and (ii) Unregistered Securities will be released in
definitive  form to the person entitled to physical  delivery  thereof only upon
presentation of a certificate in the form prescribed by the Company.

          (e)  The  aggregate  principal  amount  of  Securities  of any  Series
outstanding  at any time may not  exceed any limit  upon the  maximum  principal
amount for such Series set forth in the Board  Resolution (or  certificate of an
Officer or Officers) or  supplemental  indenture  pursuant to Section 2.02 or in
any additional Board  Resolution or supplemental  indenture which shall reopen a
Series of Securities pursuant to Section 2.02.


                                       11
<PAGE>

          (f) The Trustee may appoint an authenticating  agent acceptable to the
Company to authenticate  Securities.  An  authenticating  agent may authenticate
Securities  whenever the Trustee may do so. Each  reference in this Indenture to
authentication  by  the  Trustee  includes  authentication  by  such  agent.  An
authenticating agent has the same rights as an Agent to deal with the Company or
an Affiliate.

          Section 2.04  REGISTRAR AND PAYING AGENT.  The Company shall  maintain
for each Series of  Securities an office or agency where  Registered  Securities
may be presented for registration of transfer or for exchange  ("Registrar") and
an office or agency where (subject to Sections 2.05 and 2.08)  Securities may be
presented for payment ("Paying Agent"). With respect to any Series of Securities
issued  in  whole  or in part as  Unregistered  Securities,  the  Company  shall
maintain one or more Paying  Agents  located  outside the United  States and its
possessions  and shall  maintain  such  Paying  Agents for a period of two years
after the principal of such Unregistered  Securities has become due and payable.
During any period  thereafter  for which it is  necessary in order to conform to
United States tax law or  regulations,  the Company will maintain a Paying Agent
outside  the  United  States  and its  possessions  to  which  the  Unregistered
Securities or coupons appertaining thereto may be presented for payment and will
provide  the  necessary  funds  therefor to such  Paying  Agent upon  reasonable
notice.  The  Registrar  shall keep a register  with  respect to each  Series of
Securities  issued in whole or in part as Registered  Securities and as to their
transfer and exchange. The Company may appoint one or more co-Registrars and one
or more  additional  Paying Agents for each Series of Securities and the Company
may terminate  the  appointment  of any  co-Registrar.  The term "Paying  Agent"
includes any  additional  Paying Agent.  The Company shall notify the Trustee of
the name and address of any Agent not a party to this Indenture.  If the Company
fails to maintain a Registrar or Paying Agent, the Trustee shall act as such.

          Section 2.05  PAYMENT ON SECURITIES.

          (a) Subject to the following  provisions,  the Company will pay to the
Trustee or the Paying Agent the  amounts,  in such coin or currency as is at the
time legal  tender for the payment of public or private  debt,  at the times and
for the purposes set forth herein and in the text of the Securities  Series, and
the Company hereby  authorizes and directs the Trustee or the Paying Agent, from
funds so paid to it, to make or cause to be made  payment of the  principal  of,
interest and premium,  if any, on the  Securities  and coupons of each Series as
set forth herein and in the text of such  Securities  and  coupons.  The Trustee
will arrange directly with any Paying Agent for the payment, or the Trustee will
make payment, from funds furnished by the Company, of the principal of, interest
and premium, if any, on the Securities and coupons of each Series by check drawn
upon a bank specified by the Company and acceptable to the Trustee.


                                       12
<PAGE>


          (b) Interest,  if any, on  Registered  Securities of a Series shall be
paid on each interest  payment date for such Series to the Holder thereof at the
close of business on the relevant  record dates  specified in the  Securities of
such Series.  The Company may pay such interest by check mailed to such Holder's
address as it appears on the register for  Securities of such Series.  Principal
of  Registered  Securities  shall  be  payable  only  against  presentation  and
surrender  thereof at the office of the Paying Agent in Milwaukee,  Wisconsin or
New York,  New York  unless the  Company  shall have  otherwise  instructed  the
Trustee in writing.

          (c)  To the  extent  provided  in  the  Securities  of a  Series,  (i)
interest,  if  any,  on  Unregistered  Securities  shall  be paid  only  against
presentation and surrender of the coupons for such interest  installments as are
evidenced  thereby as they mature;  and (ii) original issue discount (as defined
in Section 1273 of the Internal  Revenue Code of 1986,  as amended),  if any, on
Unregistered Securities shall be paid only against presentation and surrender of
such Securities;  in either case at the office of a Paying Agent located outside
of the United States and its possessions.  Principal of Unregistered  Securities
shall be paid only against presentation and surrender thereof as provided in the
Securities of a Series. If at the time a payment of principal of or interest, if
any, or original issue discount,  if any, on an Unregistered  Security or coupon
shall  become  due,  the  payment of the full amount so payable at the office or
offices of all the Paying Agents  outside the United States and its  possessions
is illegal  or  effectively  precluded  because of the  imposition  of  exchange
controls or other similar  restrictions  on the payment of such amount in United
States currency, then the Company will instruct the Trustee in writing as to how
and when such  payment  will be made and may  instruct  the Trustee to make such
payments at the office of a Paying Agent located in the United States,  provided
that the Company has  determined  that  provision for such payment in the United
States  would  not  cause  such  Unregistered   Security  to  be  treated  as  a
"registration-required  obligation"  under United  States laws and  regulations.
Unless otherwise  instructed in writing by the Company, no payments of interest,
original issue  discounts or principal with respect to  Unregistered  Securities
shall  be made by a Paying  Agent  (i) by  transfer  of  funds  into an  account
maintained by the payee in the United  States,  (ii) mailed to an address in the
United  States or (iii)  paid to a United  States  address by  electronic  funds
transfer.

          Section  2.06 PAYING AGENT TO HOLD MONEY IN TRUST.  The Company  shall
require  each Paying  Agent other than the Trustee to agree in writing  that the
Paying Agent will hold in trust,  for the benefit of  Securityholders  of any or
all Series of Securities, or the Trustee, all money held by the Paying Agent for
the payment of principal or interest on such Series of Securities,  and that the
Paying Agent will notify the Trustee of any default by the Company (or any other
obligor on the  Securities)  in making any such payment.  While any such default
continues, the Trustee may require a Paying Agent to pay all money held by it to
the  Trustee.  If the Company or a  Subsidiary  acts as Paying  Agent,  it shall
segregate  the money held by it for the payment of  principal or


                                       13
<PAGE>


interest  on any Series of  Securities  and hold such money as a separate  trust
fund.  The Company at any time may require a Paying  Agent to pay all money held
by it to the  Trustee.  Upon so doing,  the Paying  Agent  shall have no further
liability  for the money so paid.  The Trustee or the Paying Agent may allow and
credit to the Company (or any other obligor on the  Securities)  interest on any
monies  received  by it  hereunder  at such rate as may be agreed  upon with the
Company (or any other obligor on the Securities) from time to time and as may be
permitted by law.

          Section 2.07 SECURITYHOLDER LISTS; OWNERSHIP OF SECURITIES.

          (a) The Trustee  shall  preserve in as current a form as is reasonably
practicable  the most recent list  available to it of the names and addresses of
Holders of each Series of Securities.  If the Trustee is not the Registrar,  the
Company shall furnish to the Trustee  semiannually  on or before the last day of
June and  December  in each year,  and at such other  times as the  Trustee  may
request in  writing,  a list in such form and as of such date as the Trustee may
reasonably require,  containing all the information in the possession or control
of the Registrar,  the Company,  the Guarantor or any of the Paying Agents other
than the Trustee as to the names and addresses of Holders of each such Series of
Securities.

          (b)  Ownership of  Registered  Security of a Series shall be proved by
the register for such Series kept by the  Registrar.  Ownership of  Unregistered
Securities may be proved by the production of such Unregistered  Securities,  or
by a certificate or affidavit  executed by the person holding such  Unregistered
Securities,  or by a  depository  with whom such  Unregistered  Securities  were
deposited if the certificate or affidavit is  satisfactory  to the Trustee.  The
Company,  the Trustee,  the Guarantor and any agent of the Company may treat the
bearer or any  Unregistered  Security  or coupon  and the person in whose name a
Registered  Security  is  registered  as the  absolute  owner  thereof  for  all
purposes.

          Section 2.08 TRANSFER AND EXCHANGE.

          (a) Where  Registered  Securities  of a Series  are  presented  to the
Registrar  with a request to register  their transfer or to exchange them for an
equal principal  amount of Registered  Securities of the same Series  containing
identical  terms  and  provisions  and  date of  maturity  of  other  authorized
denominations, the Registrar shall register the transfer or make the exchange if
its requirements for such transactions are met.

          (b) If both Registered and Unregistered  Securities are authorized for
a Series of Securities and the terms of such Securities permit, (i) Unregistered
Securities  may be  exchanged  for  an  equal  principal  amount  of  Registered
Securities containing identical terms and provisions of the same Series and date
of maturity in any  authorized


                                       14
<PAGE>


denominations  upon delivery to the Registrar of the Unregistered  Security with
all unmatured  coupons and all matured coupons in default  appertaining  thereto
and if all other  requirements  of the  Registrar and such  Securities  for such
exchange are met, and (ii)  Registered  Securities may be exchanged for an equal
principal  amount of  Unregistered  Securities  of the same  Series  and date of
maturity in any authorized  denominations  (except that any coupons appertaining
to such  Unregistered  Securities which have matured and have been paid shall be
detached) upon delivery to the Registrar of the Registered Securities and if all
other  requirements  of the Registrar (or such Paying Agent) and such Securities
for such exchange are met.

          Notwithstanding the foregoing, the exchange of Unregistered Securities
for Registered Securities or Registered  Securities for Unregistered  Securities
will be subject to the  satisfaction of the provisions of United States laws and
regulations  in  effect  at the  time  of  such  exchange,  and no  exchange  of
Registered Securities for Unregistered Securities will be made until the Company
has notified the Trustee and the Registrar  that, as a result of such  exchange,
neither the Company nor the Guarantor  would suffer adverse  consequences  under
the provisions of United States laws or regulations.

          (c) To permit registrations of transfers and exchanges the Trustee (or
an authenticating agent) shall authenticate  Securities upon instructions of the
Registrar or, if  applicable,  a Paying Agent upon  surrender of Securities  for
registration  of transfer or for  exchange  as  provided  in this  Section.  The
Company  will not make any charge for any  registration  of transfer or exchange
but may  require  the  payment  by the party  requesting  such  registration  of
transfer or exchange of a sum sufficient to cover any tax or other  governmental
charge payable in connection therewith.

          (d) Neither the Company  nor the  Registrar  shall be required  (i) to
issue,  register  the transfer of or exchange  Securities  of any Series for the
period of 15 days immediately  preceding the selection of any such Securities to
be redeemed,  or (ii) to register the transfer of or exchange  Securities of any
Series selected, called or being called for redemption as a whole or the portion
being  redeemed  of any such  Securities  selected,  called or being  called for
redemption in part.

          (e) Unregistered  Securities or any coupons appertaining thereto shall
be transferable by delivery.

          Section 2.09 REPLACEMENT SECURITIES.

          (a) If a  mutilated  Security or a Security  with a  mutilated  coupon
appertaining to it is surrendered to the Trustee (or an  authenticating  agent),
the Company shall issue (with the Guarantee  thereon  executed by the Guarantor)
and the Trustee (or an  authenticating  agent) shall  authenticate a replacement
Registered Security,  if such surrendered security was a Registered Security, or
a replacement Unregistered Security


                                       15
<PAGE>


with  coupons  corresponding  to the  coupons  appertaining  to the  surrendered
Security,  if such surrendered Security was an Unregistered Security of the same
Series and  containing  identical  terms and  provisions,  if the  Trustee's (or
authenticating agent's) requirements are met.

          (b) If the Holder of a Security claims that the Security or any coupon
appertaining  thereto has been lost,  destroyed or wrongfully taken, the Company
shall issue (with the  Guarantee  thereon  executed  by the  Guarantor)  and the
Trustee  (or  an  authenticating   agent),   shall  authenticate  a  replacement
Registered  Security,  if such Holder's claim pertains to a Registered Security,
or a replacement Unregistered Security with coupons corresponding to the coupons
appertaining to the lost, destroyed or wrongfully taken Unregistered Security or
the  Unregistered  Security to which such lost,  destroyed or  wrongfully  taken
coupon appertains,  if such Holder's claim pertains to an Unregistered Security,
of the same  Series  and  containing  identical  terms  and  provisions,  if the
Trustee's  requirements  are met;  provided,  however,  that the  Trustee (or an
authenticating  agent), the Company or the Guarantor may require any such Holder
to provide to the Trustee,  the Company and the Guarantor  security or indemnity
sufficient in the judgment of the Company,  the Guarantor and the Trustee (or an
authenticating agent) to protect the Company, the Guarantor,  the Trustee (or an
authenticating  agent)  and any Agent from any loss which any of them may suffer
if a Security is replaced.  The Company,  the  Guarantor  and the Trustee (or an
authenticating agent) may charge the party requesting a replacement Security for
its expenses in replacing a Security.

          (c) Every  replacement  Security is an  additional  obligation  of the
Company.  Every  replacement  Guarantee  is  an  additional  obligation  of  the
Guarantor.

          (d)  Notwithstanding   anything  to  the  contrary  contained  herein,
replacement Securities need not be issued in any of the circumstances  described
in  Section  2.09  if  the  Company,   the  Guarantor  or  the  Trustee  (or  an
authenticating  agent)  have  notice  that the  mutilated,  lost,  destroyed  or
wrongfully taken Security has been acquired by a bona fide purchaser.

          Section 2.10 OUTSTANDING SECURITIES.

          (a)   Securities   outstanding   at  any  time   are  all   Securities
authenticated  by the Trustee  (or an  authenticating  agent),  except for those
canceled by it, those  delivered to it for  cancellation  and those described in
this Section as not outstanding.

          (b) If a Security is replaced  pursuant to Section  2.09, it ceases to
be outstanding  until the Trustee (or an authenticating  agent),  receives proof
satisfactory to it that the replaced Security is held by a bona fide purchaser.


                                       16
<PAGE>


          (c) If the Paying  Agent holds on a redemption  date or maturity  date
money  or U.S.  Government  Obligations  sufficient  to pay all  amounts  due on
Securities  of any  Series  on that  date,  then on and  after  that  date,  all
Securities of such Series cease to be outstanding and interest on them ceases to
accrue.

          (d) A Security does not cease to be  outstanding  because the Company,
the Guarantor or an Affiliate of either of them holds the Security.

          (e) In  determining  whether  the Holders of the  requisite  principal
amount of outstanding  Securities of any Series have given any request,  demand,
authorization,  direction,  notice,  consent  or waiver  hereunder,  or  whether
sufficient funds are available for redemption or for any other purpose,  (i) the
principal amount of an Original Issue Discount  Security that shall be deemed to
be outstanding  for such purposes  shall be the amount of the principal  thereof
that  would  be due and  payable  as of the  date of such  determination  upon a
declaration of  acceleration of the maturity  thereof  pursuant to Section 6.02;
and (ii) the principal  amount of any security  denominated  in a currency other
than  United  States  dollars  that shall be deemed to be  outstanding  for such
purposes  shall be that amount of United  States  dollars that could be obtained
for such amount on such  reasonable  basis of exchange and as of the record date
for such  determination  or action (or, if there shall be no  applicable  record
date, such other date reasonably  proximate to the date of such determination or
action),  in each case, as the Company shall specify in a written  notice to the
Trustee.

          Section 2.11 TREASURY  SECURITIES.  In determining whether the Holders
of the requisite  principal amount of Securities of any Series have concurred in
any  direction,  waiver  or  consent,  Securities  of such  Series  owned by the
Company,  the Guarantor or an Affiliate of either of them shall be  disregarded,
except  that for the  purposes  of  determining  whether  the  Trustee  shall be
protected in relying on any such direction,  waiver or consent,  only Securities
of such Series which the Trustee knows are so owned shall be so disregarded.

          Section 2.12 TEMPORARY SECURITIES.

          (a) Until definitive Registered Securities of any Series are ready for
delivery, the Company may prepare and execute and the Trustee shall authenticate
temporary  Registered  Securities of such Series having duly executed Guarantees
endorsed  thereon.  Temporary  Registered  Securities  of any  Series  shall  be
substantially in the form of definitive Registered Securities of such Series but
may have variations that the Company and the Guarantor considers appropriate for
temporary  Securities.  Every temporary Registered Security shall be executed by
the  Company,  guaranteed  by the  Guarantor,  authenticated  by the Trustee and
registered by the Registrar, upon the same conditions,  and with like effect, as
a definitive  Registered  Security.  Without


                                       17
<PAGE>


unreasonable  delay, the Company and the Guarantor shall prepare and the Trustee
shall  authenticate  definitive  Registered  Securities  of the same  Series and
containing  identical terms and provisions in exchange for temporary  Registered
Securities.

          (b) Until definitive  Unregistered  Securities of any Series are ready
for  delivery,  the Company  may  prepare  and  execute  and the  Trustee  shall
authenticate  one or more  temporary  Unregistered  Securities,  which  may have
coupons  attached  or  which  may be in the form of a  single  temporary  global
Unregistered  Security of that Series.  The temporary  Unregistered  Security or
Securities  of any Series  shall be  substantially  in the form  approved  by or
pursuant  to a  Board  Resolution  or a  supplemental  indenture  and  shall  be
delivered to one of the Paying Agents located  outside the United States and its
possessions  or to such  other  person or persons as the  Company  shall  direct
against such  certification as the Company may from time to time prescribe by or
pursuant  to a Board  Resolution  or a  supplemental  indenture.  The  temporary
Unregistered Security or Securities of a Series shall be executed by the Company
and the Guarantor and  authenticated  by the Trustee,  upon the same conditions,
and with like  effect,  as a  definitive  Unregistered  Security of such Series,
except as provided  herein or  therein.  A  temporary  Unregistered  Security or
Securities  shall  be  exchangeable  for  definitive   Unregistered   Securities
containing identical terms and provisions at the time and on the conditions,  if
any, specified in the temporary Security.

          Upon any exchange of a part of a temporary  Unregistered Security of a
Series for  definitive  Unregistered  Securities  of such Series,  the temporary
Unregistered  Security  shall be  endorsed  by the  Trustee  or Paying  Agent to
reflect  the  reduction  of its  principal  amount  by an  amount  equal  to the
aggregate principal amount of definitive  Unregistered Securities of such Series
so exchanged and endorsed.

          Section 2.13  CANCELLATION.  The Company or the  Guarantor at any time
may  deliver  Securities  and  coupons  to the  Trustee  for  cancellation.  The
Registrar and the Paying Agent shall forward to the Trustee any  Securities  and
coupons  surrendered to them for  registration of transfer,  for exchange or for
payment.  Except as  otherwise  required by this  Indenture,  the Trustee  shall
cancel all Securities and coupons  surrendered for registration of transfer,  or
for exchange,  payment or cancellation  and will dispose of canceled  Securities
and coupons as the Company  directs;  provided,  however,  that any Unregistered
Securities of a Series  delivered to the Trustee for exchange  prior to maturity
shall be  retained  by the  Trustee  for  reissue as  provided  herein or in the
Securities of such Series.  The Company may not issue new  Securities to replace
Securities that it has paid or delivered to the Trustee for cancellation.

          Section  2.14  DEFAULTED  INTEREST.  If the  Company or the  Guarantor
defaults  on a payment of  interest  on a Series of  Securities,  either of them
shall pay the defaulted interest as provided in such Securities or in any lawful
manner not


                                       18
<PAGE>


inconsistent  with the  requirements  of any  securities  exchange on which such
Securities may be listed.

          Section 2.15 GLOBAL SECURITIES.

          (a) If the Company shall  establish  pursuant to Section 2.02 that the
Securities of a particular  Series are to be issued as a Global  Security,  then
the Company shall  execute and the Trustee  shall,  in  accordance  with Section
2.03, authenticate and deliver, a Global Security that (i) shall represent,  and
shall be  denominated in an amount equal to the aggregate  principal  amount of,
all of the  outstanding  Securities of such Series,  (ii) shall be registered in
the name of the  Depositary  or its  nominee,  (iii) shall be  delivered  by the
Trustee to the Depositary or pursuant to the  Depositary's  instruction and (iv)
shall bear a legend substantially to the following effect:  "Except as otherwise
provided in Section 2.15 of the Indenture, this Security may be transferred,  in
whole  but not in  part,  only to  another  nominee  of the  Depositary  or to a
successor Depositary or to a nominee of such successor Depositary."

          (b)  Notwithstanding  the  provisions  of  Section  2.08,  the  Global
Security  of a Series  may be  transferred,  in whole but not in part and in the
manner  provided in Section 2.08,  only to another nominee of the Depositary for
such Series,  or to a successor  Depositary for such Series selected or approved
by the Company or to a nominee of such successor Depositary.

          (c) If at any  time the  Depositary  for a  Series  of the  Securities
notifies the Company  that it is  unwilling or unable to continue as  Depositary
for such Series or if at any time the Depositary for such Series shall no longer
be registered or in good  standing  under the Exchange Act, or other  applicable
statute  or  regulation,  and a  successor  Depositary  for such  Series  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, this Section 2.15 shall
no longer be  applicable  to the  Securities of such Series and the Company will
execute,  and subject to Section 2.08, the Trustee will authenticate and deliver
the Securities of such Series, in authorized denominations,  and in an aggregate
principal  amount equal to the principal  amount of the Global  Security of such
Series in exchange for such Global Security. In addition, the Company may at any
time  determine that the Securities of any Series shall no longer be represented
by a Global  Security  and that the  provisions  of this  Section  2.15 shall no
longer apply to the  Securities  of such Series.  In such event the Company will
execute and subject to Section 2.08,  the Trustee,  upon receipt of an Officers'
Certificate  evidencing such determination by the Company, will authenticate and
deliver the Securities of such Series,  in authorized  denominations,  and in an
aggregate  principal amount equal to the principal amount of the Global Security
of such Series in exchange  for such Global  Security.  Upon the exchange of the
Global  Security for such  Securities  in authorized  denominations,  the Global
Security shall be


                                       19
<PAGE>


canceled by the  Trustee.  Such  Securities  issued in  exchange  for the Global
Security  pursuant to this Section 2.15(c) 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  Securities  to the  Depositary  for
delivery to the persons in whose names such Securities are so registered.

          Section 2.16 UNCONDITIONAL GUARANTEE.

          (Form of Guarantee)

          FOR VALUE RECEIVED, the Guarantor,  hereby unconditionally  guarantees
to the Holder of the Security upon which this  Guarantee is endorsed the due and
punctual payment of the principal of, sinking funds payment, if any, premium, if
any, or interest on said Security,  when and as the same shall be become due and
payable,  whether at maturity,  upon  redemption or otherwise,  according to the
terms thereof and of the Indenture referred to therein.

          The Guarantor agrees to determine,  at least one business day prior to
the date upon which a payment of principal  of,  sinking fund  payment,  if any,
premium,  if any, or interest on said  Security is due and payable,  whether the
Company has  available  the funds to make such  payment as the same shall become
due and  payable.  In case of the failure of the Company  punctually  to pay any
such principal,  sinking fund payment, if any, premium, if any, or interest, the
Guarantor hereby agrees to cause any such payment to be made punctually when and
as the same shall become due and payable,  whether at maturity,  upon redemption
or otherwise, and as if such payment were made by the Company.

          The Guarantor  hereby agrees that its  obligations  hereunder shall be
unconditional,   irrevocable   and  absolute,   irrespective  of  the  validity,
regularity or enforceability of said Security or said Indenture,  the absence of
any  action to  enforce  the same,  any  waiver or consent by the Holder of said
Security with respect to any  provisions  thereof,  the recovery of any judgment
against the Company or any action to enforce the same or any other  circumstance
which might otherwise  constitute a legal or equitable discharge or defense of a
guarantor.  The  Guarantor  hereby  waives  diligence,  presentment,  demand  of
payment,  filing of claims with a court in the event of merger or  bankruptcy of
the  Company,  any right to require a  proceeding  first  against  the  Company,
protest  or notice  with  respect to said  Security  or  indebtedness  evidenced
thereby,  and all demands  whatsoever and covenants that this Guarantee will not
be discharged  except by complete  performance of the  obligations  contained in
said Security and in this Guarantee.

          The Guarantor  shall be subrogated to all rights of the Holder of said
Security  against the Company in respect to any  amounts  paid by the  Guarantor
pursuant


                                       20
<PAGE>


to the provisions of this Guarantee; provided, however, that the Guarantor shall
not,  without  the  consent  of  the  Holders  of all  of  the  Securities  then
outstanding, be entitled to enforce or to receive any payments arising out of or
based upon such right of subrogation until the principal of and premium, if any,
and interest on all Securities  shall have been paid in full or payment  thereof
shall have been provided for in accordance with said Indenture.

          Notwithstanding   anything  to  the  contrary   contained  herein,  if
following any payment of principal or interest by the Company on the  Securities
to the Holders of the Securities it is determined by a final decision of a court
of competent  jurisdiction  that such  payment  shall be avoided by a trustee in
bankruptcy (including any  debtor-in-possession) as a preference under 11 U.S.C.
Section  547  and  such  payment  is  paid by such  Holder  to such  trustee  in
bankruptcy,  then and to the extent of such  repayment  the  obligations  of the
Guarantor hereunder shall remain in full force and effect.

          This Guarantee shall not be valid or become obligatory for any purpose
with  respect  to a  Security  until a  certificate  of  authentication  on such
Security shall have been signed by the Trustee (or the authenticating agent).

          This  Guarantee  shall  be  governed  by  the  laws  of the  State  of
Wisconsin.

          IN  WITNESS  WHEREOF,  ALLIANT  ENERGY  CORPORATION  has  caused  this
Guarantee to be signed in its corporate  name by the facsimile  signature of two
of its  officers  thereunto  duly  authorized  and has caused a facsimile of its
corporate  seal,  if  any,  to be  affixed  hereto  or  imprinted  or  otherwise
reproduced hereon.

          Section 2.17 EXECUTION OF GUARANTEES. To evidence the Guarantee to the
Securityholders  specified  in Section  2.16,  the  Guarantor  hereby  agrees to
execute the Guarantees,  in substantially the form above recited, to be endorsed
on  each   Security   authenticated   and  delivered  by  the  Trustee  (or  the
authentication  agent).  Each  such  Guarantee  shall be signed on behalf of the
Guarantor  as set  forth in  Section  2.03  prior to the  authentication  of the
Security  on which it is  endorsed,  and the  delivery  of such  Security by the
Trustee  (or  the  authenticating   agent),  after  the  authentication  thereof
hereunder,  shall  constitute  due  delivery of such  Guarantee on behalf of the
Guarantor.

          Section 2.18 ASSUMPTION BY GUARANTOR.

          (a) The  Guarantor  may,  without the consent of the  Securityholders,
assume all of the rights and  obligations of the Company  hereunder with respect
to a Series of  Securities  and under the  Securities  of such Series if,  after
giving  effect to such  assumption,  no Default  or Event of Default  shall have
occurred and be continuing. Upon such an assumption, the Guarantor shall execute
a  supplemental  indenture  evidencing  its  assumption  of all such  rights and
obligations  of  the  Company  and  the  Company  shall  be


                                       21
<PAGE>


released from its liabilities  hereunder and under such Securities as obligor on
the Securities of such Series.

          (b) The Guarantor  shall assume all of the rights and  obligations  of
the  Company  hereunder  with  respect to a Series of  Securities  and under the
Securities  of such  Series  if,  upon a default  by the  Company in the due and
punctual payment of the principal,  sinking fund payment,  if any,  premium,  if
any, or interest on such  Securities,  the  Guarantor  is prevented by any court
order or judicial  proceeding from fulfilling its obligations under Section 2.16
with respect to such Series of Securities.  Such assumption  shall result in the
Securities of such Series  becoming the direct  obligations of the Guarantor and
shall be effected  without the consent of the Holders of the  Securities  of any
Series.  Upon such an  assumption,  the Guarantor  shall execute a  supplemental
indenture  evidencing its  assumption of all such rights and  obligations of the
Company,  and the Company shall be released from its  liabilities  hereunder and
under such Securities as obligor on the Securities of such Series.


                                   ARTICLE 3.

                                   REDEMPTION

          Section 3.01 NOTICE TO THE TRUSTEE.  The Company may,  with respect to
any  Series of  Securities,  reserve  the right to redeem  and pay the Series of
Securities or any part thereof,  or may covenant to redeem and pay the Series of
Securities or any part thereof,  before  maturity at such time and on such terms
as provided  for in such  Securities.  The election of the Company to redeem any
Securities  shall be evidenced by a Company Order.  In case of any redemption at
the  election  of the Company of all or less than all of the  Securities  of any
Series with the same issue date, interest rate and stated maturity,  the Company
shall,  at  least 60 days  prior to the  redemption  date  fixed by the  Company
(unless a shorter  notice  shall be  satisfactory  to the  Trustee),  notify the
Trustee of such redemption date and of the principal amount and redemption price
of Securities of such Series to be redeemed.

          Section 3.02 SELECTION OF SECURITIES TO BE REDEEMED.  If less than all
the Securities of any Series with the same issue date, interest rate, and stated
maturity are to be redeemed,  the particular  Securities to be redeemed shall be
selected,  not more than 60 days prior to the  redemption  date,  by the Trustee
from the  outstanding  Securities  of such  Series  not  previously  called  for
redemption,  by such method as the Trustee shall deem fair and  appropriate  and
which may provide for the selection for  redemption of portions of the principal
amount of Securities  of such Series;  provided,  however,  that no such partial
redemption  shall  reduce the portion of the  principal  amount of a Security of
such Series not redeemed to less than the minimum denomination for a


                                       22
<PAGE>


Security of that Series established  pursuant to Section 2.02. The Trustee shall
promptly notify the Company in writing of the Securities selected for redemption
by it and, in the case of any Securities  selected for partial  redemption,  the
amount thereof to be redeemed.

          Section 3.03 NOTICE OF REDEMPTION.

          (a) At least 30 days,  but not more than 60 days  before a  redemption
date, unless a shorter period is specified in the Securities to be redeemed, the
Company shall mail a notice of redemption by first-class  mail to each Holder of
Registered Securities that are to be redeemed.

          (b)  If  Unregistered  Securities  are  to  be  redeemed,   notice  of
redemption shall be published in an Authorized Newspaper in the City of New York
once in each of four successive  calendar weeks, the first publication to be not
less than 30 nor more than 90 days before the redemption date.

          (c) All notices shall identify the Series of Securities to be redeemed
and shall state:

                    (1) the redemption date;

                    (2) the redemption price;

                    (3) if less than all the outstanding  Securities of a Series
          are to be redeemed,  the  identification  (and, in the case of partial
          redemption,  the principal amounts) of the particular Securities to be
          redeemed;

                    (4) the name and address of the Paying Agent;

                    (5) that  Securities of the Series called for redemption and
          all  unmatured  coupons,   if  any,   appertaining   thereto  must  be
          surrendered to the Paying Agent to collect the redemption price; and

                    (6) that  interest on  Securities  of the Series  called for
          redemption ceases to accrue on and after the redemption date.

          At the  Company's  request,  the  Trustee  shall  give the  notice  of
redemption in the Company's name and at its expense.

          If the  Company  gives the notice of  redemption,  the  Company  shall
promptly  provide the Trustee with evidence  satisfactory  to the Trustee of its
compliance with the notice requirements of this section.


                                       23
<PAGE>


          Section 3.04 EFFECT OF NOTICE OF REDEMPTION. Once notice of redemption
is mailed or published,  Securities of a Series called for redemption become due
and  payable on the  redemption  date and from and after such date  (unless  the
Company shall default in the payment of the  redemption  price) such  Securities
shall cease to bear  interest and the Holders of such  Securities  shall have no
rights with respect to the Securities except the right to receive the redemption
price.  Upon surrender to the Paying Agent of such Securities  together with all
unmatured coupons, if any,  appertaining  thereto, such Securities shall be paid
at the  redemption  price plus  accrued  interest to the  redemption  date,  but
installments of interest due on or prior to the redemption date will be payable,
in the case of Unregistered  Securities,  to the bearers of the coupons for such
interest upon surrender thereof, and, in the case of Registered  Securities,  to
the  Holders  of such  Securities  of  record at the  close of  business  on the
relevant record dates.

          Section 3.05 DEPOSIT OF REDEMPTION  PRICE. On or before the redemption
date,  the Company  shall  deposit  with the  Trustee or the Paying  Agent money
sufficient to pay the redemption  price of and (unless the redemption date shall
be an interest  payment date)  interest  accrued to the  redemption  date on all
Securities to be redeemed on that date.

          Section 3.06 SECURITIES REDEEMED IN PART. Upon surrender of a Security
that is  redeemed  in part,  the  Company  shall  issue and the  Trustee  or the
authenticating  agent shall  authenticate  for the Holder of that Security a new
Security or Securities  of the same Series,  the same form and the same maturity
in  authorized   denominations  equal  in  aggregate  principal  amount  to  the
unredeemed  portion of the Security  surrendered and having  endorsed  thereon a
duly executed Guarantee.


                                   ARTICLE 4.

                                    COVENANTS

          Section 4.01 PAYMENT OF SECURITIES.

          (a)  The  Company  shall  pay the  principal  of and  interest  on the
Securities on the dates and in the manner provided herein and in the Securities.
An installment of principal or interest shall be considered  paid on the date it
is due if the Trustee or Paying  Agent holds on that date money  designated  for
and sufficient to pay the installment.

          (b) The Company shall pay interest on overdue  principal of a Security
of any  Series  at the rate of  interest  (or Yield to  Maturity  in the case of
Original Issue Discount  Securities)  borne by such Security of that Series;  to
the extent lawful, it shall pay interest on overdue  installments of interest at
the same rate.


                                       24
<PAGE>


          Section 4.02 MAINTENANCE OF OFFICE OR AGENCY.

          The Company and the Guarantor shall maintain an office or agency where
Securities  may be presented  or  surrendered  for payment.  The Company and the
Guarantor  also will  maintain in The City of New York an office or agency where
Securities  may be  surrendered  for  registration  of transfer,  redemption  or
exchange and where  notices and demands to or upon the Company and the Guarantor
in respect of the Securities  and this  Indenture may be served.  The Company or
the Guarantor will give prompt written notice to the Trustee of the location and
any change in the location of any such  offices or agencies.  If at any time the
Company or the  Guarantor  shall fail to maintain any such  required  offices or
agencies  or shall fail to furnish the Trustee  with the address  thereof,  such
presentations,  surrenders,  notices  and  demands  may be made or served at the
office of the Trustee  and the  Company or the  Guarantor  hereby  appoints  the
Trustee such agent as its agent to receive all such  presentations,  surrenders,
notices and demands.

          The Company or the  Guarantor  may from time to time  designate one or
more other offices or agencies (in or outside of The City of New York) where the
Securities may be presented or surrendered for any or all such purposes, and may
from time to time rescind such  designation.  The Company or the Guarantor  will
give prompt written notice to the Trustee of any such  designation or rescission
and any  change in the  location  of any such  office or  agency.

          Section 4.03 LIMITATIONS ON LIENS.

          The Company  shall not, and shall not permit any  Subsidiary to issue,
assume or guarantee  any Debt if the Debt is secured by any Lien upon any of its
property  or  assets  (other  than  cash),   without  effectively  securing  the
outstanding  Securities (together with any other indebtedness or obligation then
existing or thereafter created ranking equally with such Securities) equally and
ratably with the Debt. This limitation does not apply to:

                    (a) Liens in existence  on the date of original  issuance of
          the Securities;

                    (b) (i) any Lien  created or arising  over any  property  or
          assets  which the  Company or a  Subsidiary  acquires,  constructs  or
          creates, but only if (A) such Lien secures only principal amounts (not
          exceeding the cost of the  acquisition,  construction  or creation) of
          Debt  incurred for the purposes of the  acquisition,  construction  or
          creation,  together  with  any  costs,  expenses,  interest  and  fees
          incurred in connection with the acquisition,  construction or creation
          or a guarantee given in connection with the acquisition,  construction
          or  creation,  (B) the Lien is  created or arises on or before 90 days
          after the completion of the


                                       25
<PAGE>


          acquisition,  construction  or  creation  and (C) the Lien is confined
          solely to the property or assets so acquired,  constructed or created;
          or (ii) any Lien to  secure  the Debt  incurred  by the  Company  or a
          Subsidiary  in connection  with a  specifically  identifiable  project
          where the Lien  relates and is  confined  to a property or  properties
          (including, without limitation, shares or other rights of ownership in
          the  entities  which own such  property or  project)  involved in such
          project and acquired by the Company or a Subsidiary  after the date of
          original  issuance of the Securities and the recourse of the creditors
          in respect of the Debt is  limited to any or all of such  project  and
          property (including as aforesaid);

                    (c) any Lien securing  amounts not more than 90 days overdue
          or otherwise being contested in good faith;

                    (d) (i) rights of financial  institutions  to offset  credit
          balances in connection with the operation of cash management  programs
          established  for  the  Company's  or any  Subsidiary's  benefit  or in
          connection with the issuance of letters of credit for the Company's or
          any Subsidiary's benefit;

                    (ii) any Lien  security  Debt incurred by the Company or any
          Subsidiary in connection with the financing of accounts receivable;

                    (iii) any Lien  incurred  or deposits  made in the  ordinary
          course of business, including, but not limited to, (A) any mechanics',
          materialmen's,  carriers', workmen's, vendors' or other like Liens and
          (B)  any  Liens   securing   amounts  in   connection   with  workers'
          compensation,   unemployment  insurance  and  other  types  of  social
          security;

                    (iv) any Lien upon  specific  items of the  Company's or any
          Subsidiary's  inventory  or other  goods  and  proceeds  securing  the
          Company's  or any  Subsidiary's  obligations  in respect  of  bankers'
          acceptances issued or created to facilitate the purchase,  shipment or
          storage of such inventory or other goods;

                    (v)  any  Lien   incurred  or  deposits  made  securing  the
          performance of tenders,  bids, leases, trade contracts (other than for
          borrowed money),  statutory  obligations,  surety bonds, appeal bonds,
          government  contracts,  performance bonds,  return-of-money  bonds and
          other  obligations  of like  nature  incurred  by the  Company  or any
          Subsidiary in the ordinary course of business;

                    (vi)  any  Lien  constituted  by a right of set off or right
          over a margin call account or any form of cash or cash  collateral  or
          any similar arrangement for obligations incurred by the Company or any
          Subsidiary  in respect of the  hedging or  management  of risks  under
          transactions  involving  any  currency or interest  rate swap,  cap or
          collar arrangements, forward exchange transaction, option, warrant,


                                       26
<PAGE>


          forward  rate  agreement,   futures   contract  or  other   derivative
          instrument of any kind;

                    (vii)  any  Lien  arising  out of  title  retention  or like
          provisions in  connection  with the purchase of goods and equipment by
          the Company or any Subsidiary in the ordinary course of business; and

                    (viii) any Lien  securing  reimbursement  obligations  under
          letters of credit,  guarantees  and other forms of credit  enhancement
          given in  connection  with the purchase of goods and  equipment by the
          Company or any Subsidiary in the ordinary course of business;

                    (e) (i) Liens on any  property  or assets  acquired  from an
          entity which is merged with or into the Company or any  Subsidiary and
          is not created in  anticipation  of any such  transaction  (unless the
          Lien was  created to secure or provide  for the payment of any part of
          the purchase  price of the entity to be acquired) and (ii) any Lien on
          any  property  or assets  existing at the time of  acquisition  by the
          Company or any Subsidiary and which is not created in  anticipation of
          the acquisition  (unless the Lien was created to secure or provide for
          the  payment  of any part of the  purchase  price of the  property  or
          assets so acquired);

                    (f) (i) Liens  required by any  contract or statute in order
          to permit the Company or any  Subsidiary  to perform  any  contract or
          subcontract made by it with or at the request of a governmental entity
          or any department, agency or instrumentality of a governmental entity,
          or to secure partial,  progress,  advance or any other payments by the
          Company or any Subsidiary to a governmental  unit under the provisions
          of any contract or statute; (ii) any Lien securing industrial revenue,
          development  or similar bonds issued by the Company or any  Subsidiary
          or for its respective  benefit,  provided that the industrial revenue,
          development or similar bonds are nonrecourse to the Company and/or the
          applicable   Subsidiary;   and  (iii)  any  Lien  securing   taxes  or
          assessments or other applicable governmental charges or levies;

                    (g) (i) any Lien which arises under any order of attachment,
          distraint or similar  legal process  arising in connection  with court
          proceedings  and any Lien which secures the  reimbursement  obligation
          for any bond obtained in connection  with an appeal taken in any court
          proceeding,  so long as the execution or other enforcement of the Lien
          arising in connection  with such legal process is  effectively  stayed
          and the claims  secured by the Lien are being  contested in good faith
          and, if appropriate,  by appropriate legal proceedings, or any Lien in
          favor of a  plaintiff  or  defendant  in any action  before a court or
          tribunal as security for costs


                                       27
<PAGE>


          or expenses;  or (ii) any Lien arising by operation of law or by order
          of a court or tribunal or any Lien  arising by an agreement of similar
          effect, including, without limitation, judgment liens; or

                    (h) any  extension,  renewal or  replacement  (or successive
          extensions,  renewals or replacements),  as a whole or in part, of any
          Liens  referred to in clauses  (a) through (g) above,  for amounts not
          exceeding  the  principal  amount of the Debt  secured  by the Lien so
          extended,  renewed or replaced,  so long as the extension,  renewal or
          replacement  Lien is limited to all or a part of the same  property or
          assets  that were  covered by the Lien that was  extended,  renewed or
          replaced (plus improvements on such property or assets);

provided, however, the Company or any Subsidiary may create or permit to subsist
Liens over any of the  Company's or  Subsidiary's  property or assets so long as
the  aggregate  amount of Debt  secured  by all Liens  that the  Company  or any
Subsidiary  incurs  (excluding  the amount of Debt secured by Liens set forth in
clauses  (a)  through  (h)  above)  does  not  exceed  10%  of  the  Guarantor's
Consolidated Net Tangible Assets.

          Section  4.04  LIMITATION  ON SALE AND  LEASE-BACK  TRANSACTIONS.  The
Company shall not enter into any Sale and Lease-Back Transaction unless:

                    (i) such transaction involves a lease for a temporary period
          not to exceed three years;

                    (ii)  such   transaction  is  between  the  Company  and  an
          Affiliate;

                    (iii) the  Company is  entitled  to incur Debt  secured by a
          Lien on the assets or  property  involved  in the Sale and  Lease-Back
          Transaction  at least equal to the  Attributable  Debt with respect to
          the Sale and  Lease-Back  Transaction,  without  equally  and  ratably
          securing the Securities;

                    (iv)  the  Company  enters  into  the  Sale  and  Lease-Back
          Transaction  within  270 days  after its  initial  acquisition  of the
          assets or property subject to the Sale and Lease-Back Transaction;

                    (v) the  aggregate  amount  of all  Attributable  Debt  with
          respect to all Sale and  Lease-Back  Transactions  then in effect does
          not exceed 10% of the Guarantor's Consolidated Net Tangible Assets; or

                    (vi) within 12 months  preceding  the sale or transfer or 12
          months  following  the sale or  transfer,  regardless  of whether  the
          Company makes any such sale or transfer,  the Company applies,  in the
          case of a sale or  transfer  for  cash,  an


                                       28
<PAGE>


          amount equal to the net  proceeds of the sale or transfer  and, in the
          case of a sale or transfer other than for cash, an amount equal to the
          fair value of the assets so leased at the time that the Company enters
          into such  arrangement (as determined by the Board of Directors of the
          Company),  (a) to the  retirement of Debt,  incurred or assumed by the
          Company  which by its terms  matures at, or is extendible or renewable
          at the option of the obligor to, a date more than 12 months  after the
          date of  incurring,  assuming or  guaranteeing  such Debt or (b) to an
          investment in any of the Company's assets.

          Section 4.05 Money for Securities Payments to Be Held in Trust. If the
Company shall at any time act as its own Paying Agent with respect to any Series
of  Securities,  it shall,  on or before each due date of the  principal of, any
premium or interest on any of the Securities of such Series,  segregate and hold
in trust for the benefit of the persons  entitled  thereto a sum in the currency
or  currencies,  currency  unit or units or composite  currency or currencies in
which the Securities of such Series are payable  (except as otherwise  specified
pursuant to Section 2.02 for the  Securities  of such Series)  sufficient to pay
the  principal  or any premium or interest so becoming due until such sums shall
be paid to such persons or otherwise  disposed of as herein provided,  and shall
promptly notify the Trustee of its action or failure so to act.

          Whenever  the  Company  shall have one or more  Paying  Agents for any
Series of  Securities,  it shall,  on or prior to each due date of the principal
of, any premium or interest on any  Securities of such Series,  deposit with any
Paying Agent a sum (in the  currency or  currencies,  currency  unit or units or
composite  currency  or  currencies   described  in  the  preceding   paragraph)
sufficient to pay the principal or any premium or interest so becoming due, such
sum to be held in trust for the benefit of the  persons  entitled  thereto,  and
(unless such Paying Agent is the Trustee) the Company will  promptly  notify the
Trustee of its action or failure so to act.

          The Company shall cause each Paying Agent for any Series of Securities
other than the Trustee to execute and  deliver to the Trustee an  instrument  in
which such Paying Agent shall agree with the Trustee,  subject to the provisions
of this Section, that such Paying Agent shall:

                    (1)  hold  all  sums  held  by it  for  the  payment  of the
          principal  of, any premium or interest on Securities of such Series in
          trust for the benefit of the persons  entitled thereto until such sums
          shall be paid to such persons or otherwise  disposed of as provided in
          or pursuant to this Indenture;

                    (2) give the Trustee notice of any default by the Company or
          the  Guarantor  (or any  other  obligor  upon the  Securities  of such
          Series) in the  making


                                       29
<PAGE>


          of any payment of principal, any premium or interest on the Securities
          of such Series; and

                    (3) at any time during the  continuance of any such default,
          upon the written request of the Trustee,  forthwith pay to the Trustee
          all sums so held in trust by such Paying Agent.

          The  Company  or the  Guarantor  may at any time,  for the  purpose of
obtaining  the  satisfaction  and  discharge of this  Indenture or for any other
purpose, pay, or by Company Order or Guarantor Order, as the case may be, direct
any Paying Agent to pay, to the Trustee all sums held in trust by the Company or
such Paying  Agent,  such sums to be held by the Trustee  upon the same terms as
those upon which such sums were held by the Company or such Paying  Agent;  and,
upon such payment by any Paying Agent to the Trustee, such Paying Agent shall be
released from all further liability with respect to such sums.

          Except as  otherwise  provided  herein or pursuant  hereto,  any money
deposited with the Trustee or any Paying Agent, or then held by the Company,  in
trust for the  payment of the  principal  of, any  premium  or  interest  on any
Security  of any  Series  and  remaining  unclaimed  for two  years  after  such
principal  or any such  premium or  interest  shall have  become due and payable
shall be paid to the Company by Company Order (or if deposited by the Guarantor,
paid to the  Guarantor  by  Guarantor  Order),  or (if then held by the Company)
shall be  discharged  from such  trust;  and the Holder of such  Security  shall
thereafter,  as an unsecured general  creditor,  look only to the Company or the
Guarantor,  as the case may be, for payment  thereof,  and all  liability of the
Trustee or such Paying Agent with respect to such trust money, and all liability
of the Company as trustee  thereof,  shall thereupon cease;  provided,  however,
that the Trustee or such Paying  Agent,  before being  required to make any such
repayment,  may at the expense of the Company cause to be published  once, in an
Authorized Newspaper in each place of payment for such Series or to be mailed to
Holders of Registered Securities of such Series, or both, notice that such money
remains unclaimed and that, after a date specified  therein,  which shall not be
less than 30 days from the date of such  publication  or mailing nor shall it be
later than two years after such principal and any premium or interest shall have
become due and payable,  any unclaimed balance of such money then remaining will
be repaid to the Company or the Guarantor, as the case may be.


                                       30
<PAGE>


          Section 4.06 Company and the  Guarantor to Furnish  Trustee  Names and
Addresses of Holders.  In accordance with Section 312(a) of the TIA, the Company
and the Guarantor shall furnish or cause to be furnished to the Trustee:

                    (1) semi-annually with respect to Securities of each Series,
          a list,  in  each  case in such  form as the  Trustee  may  reasonably
          require,  of the names and  addresses of Holders as of the  applicable
          date; and

                    (2) at such  other  times  as the  Trustee  may  request  in
          writing,  within  30 days  after the  receipt  by the  Company  or the
          Guarantor of any such  request,  a list of similar form and content as
          of a date  not  more  than 15 days  prior  to the  time  such  list is
          furnished;

provided,  however,  that so long as the Trustee is the Registrar,  no such list
shall be required to be furnished.

          Section 4.07 COMPANY  STATEMENT  AS TO  COMPLIANCE;  NOTICE OF CERTAIN
DEFAULTS.

          (a) The Company  shall  deliver to the Trustee,  within 120 days after
the end of each fiscal year, a written statement (which need not be contained in
or accompanied by an Officers'  Certificate)  signed by the principal  executive
officer,  the principal financial officer or the principal accounting officer of
the Company, stating that

                    (1) a review of the  activities  of the Company  during such
          year and of its  performance  under this Indenture has been made under
          his or her supervision, and

                    (2) to the  best  of his or her  knowledge,  based  on  such
          review,  (A) the  Company has  complied  with all the  conditions  and
          covenants imposed on it under this Indenture throughout such year, or,
          if there has been a default in the  fulfillment  of any such condition
          or covenant,  specifying each such default known to him or her and the
          nature  and  status  thereof,  and (B) no event  has  occurred  and is
          continuing  which is, or after  notice or lapse of time or both  would
          become, an Event of Default,  or, if such an event has occurred and is
          continuing, specifying each such event known to him and the nature and
          status thereof.

          (b) The Company shall  deliver to the Trustee,  within five days after
the  occurrence  thereof,  written  notice of any Event of  Default or any event
which after notice or lapse of time or both would become an Event of Default.


                                       31
<PAGE>


          Section 4.08 GUARANTOR  STATEMENT AS TO COMPLIANCE;  NOTICE OF CERTAIN
DEFAULTS.

          (a) The Guarantor shall deliver to the Trustee,  within 120 days after
the end of each fiscal year, a written statement (which need not be contained in
or accompanied by an Officers'  Certificate)  signed by the principal  executive
officer,  the principal financial officer or the principal accounting officer of
the Guarantor, stating that

                    (1) a review of the activities of the Guarantor  during such
          year and of  performance  under this Indenture has been made under his
          or her supervision, and

                    (2) to the  best  of his or her  knowledge,  based  on  such
          review,  (A) the Guarantor has complied with  conditions and covenants
          imposed on it under this Indenture  throughout such year, or, if there
          has  been a  default  in the  fulfillment  of any  such  condition  or
          covenant,  specifying  each such  default  known to him or her and the
          nature  and  status  thereof,  and (B) no event  has  occurred  and is
          continuing which  constitutes,  or which after notice or lapse of time
          or both would  become,  an Event of Default,  or, if such an event has
          occurred and is  continuing,  specifying  each such event known to him
          and the nature and status thereof.

          (b) The Guarantor shall deliver to the Trustee, within five days after
the occurrence thereof,  written notice of any event which after notice or lapse
of time or both would become an Event of Default.

          Section 4.09 MAINTENANCE OF PROPERTIES.  The Company will cause all of
its  material  properties  used or useful in the conduct of its  business or the
business of any Subsidiary to be maintained and kept in good  condition,  repair
and working order and supplied with all necessary equipment and will cause to be
made all necessary repairs, renewals, replacements, betterments and improvements
thereof,  all as in the  judgment of the Company  may be  necessary  so that the
business carried on in connection  therewith may be properly and  advantageously
conducted at all times;  provided,  however,  that nothing in this Section shall
prevent the Company or any  Subsidiary  from selling or otherwise  disposing for
value (which value may include any tax  benefits or other  intangible  benefits)
any of its properties in the ordinary course of its business.

          Section 4.10  INSURANCE.  The Company will, and will cause each of its
Subsidiaries  to  maintain   insurance   covering  their  respective   insurable
properties  in such  amounts and  covering  such risks as is usually  carried by
companies of a similar size,  engaged in similar businesses in similar locations
and owning similar properties,  either


                                       32
<PAGE>


with  reputable  insurance  companies or, in whole or in part,  by  establishing
reserves of one or more insurance funds, either alone or with other corporations
or associations.

          Section 4.11 EXISTENCE.  Subject to Article 5, the Company shall do or
cause to be done all things  necessary  to  preserve  and keep in full force and
effect its corporate  existence and that of each Subsidiary and their respective
rights  (charter and  statutory) and  franchises;  provided,  however,  that the
foregoing shall not obligate the Company to preserve any such right or franchise
if the Company or any Subsidiary shall determine that the  preservation  thereof
is no longer  desirable  in the conduct of its  business or the business of such
Subsidiary  and that the loss  thereof is not  disadvantageous  in any  material
respect to any Holder.

          Section 4.12 PAYMENT OF TAXES AND OTHER  CLAIMS.  The Company will pay
or  discharge  or cause to be paid or  discharged,  before the same shall become
delinquent,  (1) all  taxes,  assessments  and  governmental  charges  levied or
imposed upon them or any  Subsidiary or upon the income,  profits or property of
the Company or any  Subsidiary,  and (2) all lawful claims for labor,  materials
and supplies which,  if unpaid,  might by law become a Lien upon the property of
the Company or any Subsidiary;  provided, however, that the Company shall not be
required to pay or  discharge  or cause to be paid or  discharged  any such tax,
assessment,  charge or claim whose  amount,  applicability  or validity is being
contested in good faith by appropriate proceedings.

          Section  4.13  WAIVER  OF  CERTAIN  COVENANTS.   The  Company  or  the
Guarantor,  as the case may be, may omit in any  particular  instance  to comply
with any term,  provision or condition set forth in Sections 4.03,  4.04,  4.09,
4.10,  4.11 or 4.12 with respect to the  Securities  of any Series if before the
time for such compliance the Holders of at least a majority in principal  amount
of the outstanding  Securities of such Series,  by Act of Holders,  either shall
waive such compliance in such instance or generally shall have waived compliance
with such term,  provision or  condition,  but no such waiver shall extend to or
affect  such term,  provision  or  condition  except to the extent so  expressly
waived,  and, until such waiver shall become  effective,  the obligations of the
Company and the  Guarantor  and the duties of the Trustee in respect of any such
term, provision or condition shall remain in full force and effect.


                                   ARTICLE 5.

                         CONSOLIDATION, MERGER AND SALES

          Section 5.01 COMPANY MAY  CONSOLIDATE,  ETC.,  ONLY ON CERTAIN  TERMS.
Nothing  contained in this Indenture or in any of the  Securities  shall prevent
any  consolidation  or merger of the  Company  with or into any other  person or


                                       33
<PAGE>


persons   (whether  or  not   affiliated   with  the  Company),   or  successive
consolidations  or mergers in which  either the Company  will be the  continuing
entity  or the  Company  or its  successor  or  successors  shall  be a party or
parties,  or  shall  prevent  any  conveyance,  transfer  or  lease  of  all  or
substantially  all of the property of the Company,  to any other person (whether
or not affiliated with the Company); provided, however, that:

                    (1) in case the Company shall consolidate with or merge into
          another person or convey,  transfer or lease all or substantially  all
          of its properties and assets to any person,  the entity formed by such
          consolidation  or into which the Company is merged or the person which
          acquires  by  conveyance  or  transfer,   or  which  leases,   all  or
          substantially  all of the  properties of the Company shall be a person
          organized and existing under the laws of the United States of America,
          any state  thereof or the  District  of Columbia  and shall  expressly
          assume, by an indenture (or indentures,  if at such time there is more
          than one  Trustee)  supplemental  hereto,  executed  by the  successor
          person  and  the  Guarantor  and  delivered  to the  Trustee,  in form
          reasonably  satisfactory to the Trustee,  the due and punctual payment
          of the  principal  of, any premium and interest on all the  Securities
          and the  performance  of every  obligation  in this  Indenture and the
          outstanding  Securities  on the part of the Company to be performed or
          observed;

                    (2) immediately after giving effect to such transaction,  no
          Event of Default or event  which,  after  notice or lapse of time,  or
          both,  would  become an Event of Default,  shall have  occurred and be
          continuing; and

                    (3) either the Company or the  successor  person  shall have
          delivered  to the Trustee an Officers'  Certificate  and an Opinion of
          Counsel,  each stating that such  consolidation,  merger,  conveyance,
          transfer  or lease and,  if a  supplemental  indenture  is required in
          connection with such transaction,  such supplemental  indenture comply
          with this Article and that all conditions  precedent  herein  provided
          for relating to such transaction have been complied with.

          No such consolidation,  merger, conveyance, transfer or lease shall be
permitted  by this  Section  unless  prior  thereto  the  Guarantor  shall  have
delivered to the Trustee a Guarantor's  Officers'  Certificate and an Opinion of
Counsel, each stating that the Guarantor's obligations hereunder shall remain in
full force and effect thereafter.

          Section  5.02  SUCCESSOR  PERSON  SUBSTITUTED  FOR  COMPANY.  Upon any
consolidation by the Company with or merger of the Company into any other person
or  any  conveyance,  transfer  or  lease  of all  or  substantially  all of the
properties  and assets of the Company to any person in  accordance  with Section
5.01,  the  successor  person  formed by such  consolidation  or into  which the
Company is merged or to which such  conveyance,  transfer or lease is made shall
succeed to, and be  substituted  for, and


                                       34
<PAGE>


may exercise every right and power of, the Company under this Indenture with the
same effect as if such  successor  person had been named as the Company  herein;
and thereafter,  except in the case of a lease, the predecessor  person shall be
released  from all  obligations  and  covenants  under  this  Indenture  and the
Securities.

          Section 5.03 GUARANTOR MAY  CONSOLIDATE,  ETC., ONLY ON CERTAIN TERMS.
Nothing  contained in this Indenture or in any of the  Securities  shall prevent
any  consolidation  or merger of the Guarantor  with or into any other person or
persons   (whether  or  not  affiliated  with  the  Guarantor),   or  successive
consolidations  or mergers in which either the Guarantor  will be the continuing
entity or the  Guarantor  or its  successor  or  successors  shall be a party or
parties,  or  shall  prevent  any  conveyance,  transfer  or  lease  of  all  or
substantially all of the property of the Guarantor, to any other person (whether
or not affiliated with the Guarantor); provided, however, that:

                    (1) in case the Guarantor  shall  consolidate  with or merge
          into another person or convey,  transfer or lease all or substantially
          all of its properties  and assets to any person,  the entity formed by
          such consolidation or into which the Guarantor is merged or the person
          which  acquires by  conveyance or transfer,  or which  leases,  all or
          substantially  all of the properties and assets of the Guarantor shall
          be a person organized and existing under the laws of the United States
          of America,  any state  thereof or the  District of Columbia and shall
          expressly  assume,  by an indenture  (or  indentures,  if at such time
          there is more than one  Trustee)  supplemental  hereto,  executed  and
          delivered by the Company and the successor person and delivered to the
          Trustee,  in  form  reasonably   satisfactory  to  the  Trustee,   the
          obligation of the Guarantor under the Guarantee and the performance of
          every other covenant of this Indenture on the part of the Guarantor to
          be performed or observed;

                    (2) immediately after giving effect to such transaction,  no
          Event of Default and no event which,  after notice or lapse of time or
          both,  would  become an Event of Default,  shall have  happened and be
          continuing; and

                    (3)  each of the  Guarantor  and the  successor  person  has
          delivered to the Trustee a Guarantor's  Officers'  Certificate  and an
          Opinion of Counsel,  each  stating  that such  consolidation,  merger,
          conveyance,  transfer or lease and such supplemental  indenture comply
          with this Article and that all conditions  precedent  herein  provided
          for relating to such transaction have been complied with.

          Section 5.04 SUCCESSOR  PERSON  SUBSTITUTED  FOR  GUARANTOR.  Upon any
consolidation  or  merger  or  any  conveyance,  transfer  or  lease  of  all or
substantially all of the properties and assets of the Guarantor to any person in
accordance with Section 5.03, the successor person formed by such  consolidation
or into


                                       35
<PAGE>


which the Guarantor is merged or to which such conveyance,  transfer or lease is
made shall succeed to, and be substituted  for, and may exercise every right and
power of, the  Guarantor  under this  Indenture  with the same effect as if such
successor person had been named as the Guarantor herein, and thereafter,  except
in the  case of a lease to  another  person,  the  predecessor  person  shall be
released from all obligations and covenants under this Indenture.

          Section 5.05 ASSUMPTION BY GUARANTOR.  The Guarantor,  or a subsidiary
thereof  that  is a  corporation,  or any  other  person  that  owns  all of the
Company's  capital  stock or any person that owns all of the capital  stock of a
person that owns all of the Company's  capital stock may directly assume,  by an
indenture  supplemental  hereto,  executed and delivered to the Trustee, in form
reasonably  satisfactory  to the Trustee,  the due and  punctual  payment of the
principal  of, any premium  and  interest  on all the  Securities  of any or all
Series issued under this Indenture and the performance of every covenant of this
Indenture  on the part of the Company to be  performed  or  observed;  provided,
however,  that immediately  after giving effect to such assumption,  no Event of
Default and no event which,  after notice or lapse of time or both, would become
an Event of  Default,  shall  have  occurred  and be  continuing.  Upon any such
assumption,  the Guarantor or such subsidiary or such other person shall succeed
to,  and be  substituted  for and may  exercise  every  right and power of,  the
Company  under this  Indenture  with the same effect as if the Guarantor or such
subsidiary  had been  named  as the  Company  herein  and the  Company  shall be
released from all obligations and covenants with respect to such Securities.  No
such assumption shall be permitted unless the Guarantor or such other person has
delivered to the Trustee (i) an Officers' Certificate and an Opinion of Counsel,
each stating that such assumption and  supplemental  indenture  comply with this
Article,  and that all conditions precedent herein provided for relating to such
transaction  have been  complied  with and that, in the event of assumption by a
subsidiary  or another  person,  the  Guarantee  and all other  covenants of the
Guarantor  herein  remain  in full  force  and  effect  and (ii) an  opinion  of
independent  counsel that the Holders of guaranteed  Securities  (assuming  such
Holders  are  only  taxed as  residents  of the  United  States)  shall  have no
materially  adverse United States federal tax  consequences  as a result of such
assumption,  and that, if any  Securities  are then listed on the New York Stock
Exchange,  that  such  Securities  shall  not be  delisted  as a result  of such
assumption.


                                       36
<PAGE>

                                   ARTICLE 6.

                              DEFAULTS AND REMEDIES

          Section  6.01  EVENTS OF DEFAULT.  An "Event of  Default"  occurs with
respect to the Securities of any Series if:

                    (a) the Company or the Guarantor  defaults in the payment of
          any  interest  on any  Securities  of such  Series,  and such  default
          continues for 30 days;

                    (b) the  Company  or the  Guarantor  defaults  in payment of
          principal of or premium, if any, on the Securities of such Series when
          the same become due at maturity,  upon  redemption,  by declaration or
          otherwise;

                    (c) the Company or the Guarantor  materially defaults in the
          performance or materially  breaches any of their respective  covenants
          or obligations under this Indenture, any supplemental indenture or the
          Securities  of  such  Series  and  such  material  default  or  breach
          continues  for a period  of 90 days  after  which the  Company  or the
          Guarantor  receives  written notice from the Trustee or the holders of
          at  least  25%  in  aggregate  principal  amount  of  the  outstanding
          Securities of such Series;

                    (d) the Company or the Guarantor  defaults in the payment of
          the  principal  of any  bond,  debenture,  note or other  evidence  of
          indebtedness,  in each case for money  borrowed,  or in the payment of
          principal  under any  mortgage,  indenture or  instrument  under which
          there may be issued or by which there may be secured or evidenced  any
          indebtedness  for  money  borrowed,   which  default  for  payment  of
          principal is in an aggregate  principal amount  exceeding  $25,000,000
          (or its  equivalent  in any other  currency or  currencies)  when such
          indebtedness  becomes  due and  payable  (whether  at  maturity,  upon
          redemption  or  acceleration  or  otherwise),  if such  default  shall
          continue unremedied or unwaived for more than 30 business days and the
          time for payment of such amount has not been expressly extended;

                    (e) the failure by the Company or the Guarantor generally to
          pay  each of  their  respective  debts  as  they  become  due,  or the
          admission in writing of the  inability of the Company or the Guarantor
          to pay each of their respective  debts  generally,  or the making of a
          general  assignment  for  the  benefit  of each  of  their  respective
          creditors,  or the  institution  of any  proceeding  by or against the
          Guarantor or the Company  (other than any proceeding  brought  against
          the Company or the Guarantor as applicable,  that is dismissed  within
          180 days from its  commencement)  seeking to adjudicate it bankrupt or
          insolvent,   or  seeking  liquidation,   winding  up,  reorganization,
          arrangement,  adjustment,  protection,


                                       37
<PAGE>


          relief or composition (in each case, other than a solvent liquidation,
          winding  up,  reorganization,   arrangement,  adjustment,  protection,
          relief or  composition)  of it or its debts under any law  relating to
          bankruptcy,  insolvency,  reorganization,   moratorium  or  relief  of
          debtors, or seeking the entry of an order for relief or appointment of
          an  administrator,  receiver,  trustee,  intervenor  or other  similar
          official for it or for any  substantial  part of its property,  or the
          taking of any action by the  Guarantor or the Company to authorize any
          of the actions set forth in this clause (e); and

                    (f) a material default in the performance or material breach
          by the  Guarantor  of any  covenant  or  obligation  of the  Guarantor
          contained in the Guarantee,  and continuance of such material  default
          or breach  for a period of 90 days  after  which  the  Company  or the
          Guarantor receive written notice from the Trustee or the holders of at
          least 25% in  aggregate  principal  amount of the  Securities  of such
          Series.

          Section 6.02 ACCELERATION.  If an Event of Default occurs with respect
to the Securities of any Series and is continuing, the Trustee, by notice to the
Company and the Guarantor, or the Holders of at least 25% in principal amount of
all of the outstanding  Securities of that Series, by notice to the Company, the
Guarantor,  and the Trustee, may declare the principal (or, if the Securities of
that  Series  are  Original  Issue  Discount  Securities,  such  portion  of the
principal  amount as may be  specified  in the terms of that  Series) of all the
Securities  of that Series to be due and payable.  Upon such  declaration,  such
principal (or, in the case of Original Issue Discount Securities, such specified
amount) shall be due and payable immediately. At any time after such declaration
of  acceleration  has been made,  but before a judgment or decree for payment of
money has been obtained, the Holders of a majority in principal amount of all of
the  Securities  of that Series,  by notice to the  Trustee,  may rescind such a
declaration  and its  consequences  if all existing  Events of Default have been
cured or waived  except  nonpayment of principal or interest that has become due
solely because of the  acceleration and such declaration of acceleration and its
consequences shall be automatically annulled and rescinded.

          Section 6.03 OTHER REMEDIES AVAILABLE TO TRUSTEE.

          (a) If an Event of Default occurs and is  continuing,  the Trustee may
pursue any  available  remedy to collect the payment of principal of or interest
on the Securities of the Series that is in default or to enforce the performance
of any provision of the Securities of that Series or this Indenture.

          (b) The Trustee may maintain a proceeding  even if it does not possess
any of the Securities or does not produce any of them in the proceeding. A delay
or omission


                                       38
<PAGE>


by the Trustee or any  Securityholder in exercising any right or remedy accruing
upon an Event of Default  shall not impair the right or remedy or  constitute  a
waiver of or acquiescence in the Event of Default. No remedy is exclusive of any
other remedy. All available remedies are cumulative.

          Section 6.04 WAIVER OF EXISTING DEFAULTS. The Holders of a majority in
principal  amount of any Series of Securities by notice to the Trustee may waive
an existing Default with respect to that Series and its  consequences,  except a
Default in the payment of the principal of or interest on any Security.

          Section  6.05  CONTROL BY  MAJORITY.  The  Holders  of a  majority  in
principal  amount of the  Securities  of each  Series  affected  (with each such
Series voting as a class) may direct the time,  method,  and place of conducting
any proceeding  for any remedy  available to the Trustee or exercising any trust
or power  conferred  on it.  However,  the  Trustee  may  refuse to  follow  any
direction  that  conflicts  with law or this Indenture or that would involve the
Trustee in personal liability.

          Section 6.06 LIMITATION ON SUITS BY SECURITYHOLDERS.  A Securityholder
may not pursue a remedy with respect to this  Indenture or the Securities of any
Series unless:

                    (1) the Holder has previously  given to the Trustee  written
          notice of a continuing Event of Default with respect to the Securities
          of that Series;

                    (2) the Holders of not less than 25% in aggregate  principal
          amount of the  Securities  of that  Series  shall  have made a written
          request to the  Trustee  to  initiate  proceedings  in respect of such
          Event of Default in its own name as Trustee;

                    (3) the Holder or  Holders  offer to the  Trustee  indemnity
          satisfactory   to  the  Trustee   against  the  costs,   expenses  and
          liabilities to be incurred in compliance with such request;

                    (4) the  Trustee for 60 days after  receipt of such  notice,
          request  and offer of  indemnity,  has  failed to  institute  any such
          proceedings; and

                    (5) no  direction  inconsistent  with such  request has been
          given to the  Trustee  during  the 60-day  period by the  Holders of a
          majority  in  the  outstanding   aggregate  principal  amount  of  the
          Securities of that Series.

          A Securityholder of any Series may not use this Indenture to prejudice
the rights of another  Securityholder  of that Series or any other  Series or to
obtain a preference  or priority over another  Securityholder  of that Series or
any other Series.


                                       39
<PAGE>


          Section 6.07 RIGHTS OF HOLDERS TO RECEIVE PAYMENT. Notwithstanding any
other  provision  of this  Indenture,  the right of any Holder of a Security  to
receive  payment or principal of and interest on the  Security,  on or after the
respective due dates expressed in the Security, and the right of any Holder of a
coupon to receive  payment of interest  due as provided  in such  coupon,  or to
bring suit for the enforcement of any such payment,  on or after such respective
dates, shall not be impaired or affected without the consent of such Holder.

          Section 6.08 COLLECTION  SUITS BY TRUSTEE.  If a Default  specified in
Section 6.01(a) or (b) occurs and continues for the period specified therein, if
any,  the  Trustee  may  recover  judgment  in its own name and as trustee of an
express  trust against the Company or the Guarantor for the whole amount of such
principal and interest then in default.

          Section  6.09  TRUSTEE MAY FILE PROOFS OF CLAIM.  The Trustee may file
such  proofs of claim  and other  papers or  documents  as may be  necessary  or
advisable  in order to have the claims of the  Trustee  and the  Securityholders
allowed in any judicial  proceedings  relating to the Company,  the Guarantor or
their creditors or property.

          Section 6.10 PRIORITIES. If the Trustee collects any money pursuant to
this Article, it shall pay out the money in the following order:

                    FIRST: to the Trustee for amounts due under Section 7.07;

                    SECOND:  to Holders of Securities in respect of which or for
          the benefit of which such money has been collected for amounts due and
          unpaid on such Securities for principal and interest, ratably, without
          preference  or priority of any kind,  according to the amounts due and
          payable on such  Securities for principal and interest,  respectively;
          and

                    THIRD: to the person or persons lawfully  entitled  thereto,
          or as a court of competent jurisdiction may direct.

          The  Trustee  may  fix a  record  date  (with  respect  to  Registered
Securities) and payment date for any such payment to Holders of Securities.

          Any such  record  date shall not be less than 10 days nor more than 60
days prior to the applicable payment date.

          Section 6.11 UNDERTAKING FOR COSTS. If any suit for the enforcement of
any right or remedy under this  Indenture or in any suit against the Trustee for
any action  taken or omitted by it as  Trustee,  a court in its  discretion  may
require the


                                       40
<PAGE>


filing by any party  litigant in the suit of an  undertaking to pay the costs of
the suit, and the court in its discretion may assess reasonable  attorneys' fees
against any party litigant in this suit having due regard to the merits and good
faith of the claims or defenses  made by the party  litigant.  This Section does
not apply to a suit by the Trustee, a suit by a Holder pursuant to Section 6.07,
or a suit by Holders of more than 25% in principal  amount of the  Securities of
any Series.


                                   ARTICLE 7.

                                     TRUSTEE

          Section 7.01 DUTIES OF TRUSTEE.

          (a) If an Event of Default has occurred and is continuing, the Trustee
shall  exercise its rights,  duties and powers under this  Indenture and use the
same degree of care and skill in their  exercise as a prudent man would exercise
or use under the circumstances in the conduct of his own affairs.

          (b) Except during the continuance of an Event of Default:

                    (1) The  Trustee  need  perform  only those  duties that are
          specifically set forth in this Indenture,  and no implied covenants or
          obligations shall be read into this Indenture against the Trustee; and

                    (2) In the absence of bad faith on its part, the Trustee may
          conclusively  rely,  as  to  the  truth  of  the  statements  and  the
          correctness  of  the  opinions   expressed   therein,   upon  notices,
          certificates, opinions or other documents furnished to the Trustee and
          conforming to the requirements of this Indenture. However, the Trustee
          shall examine the notices,  certificates,  opinions or other documents
          to determine  whether or not they conform to the  requirements of this
          Indenture.

          (c)  The  Trustee  may  not be  relieved  from  liability  for its own
negligent  action,  its  own  negligent  failure  to  act,  or its  own  willful
misconduct, except that:

                    (1) This  paragraph  does not limit the effect of  paragraph
          (b) of this Section;

                    (2)  The  Trustee  shall  not be  liable  for any  error  of
          judgment  made in good faith by a  Responsible  Officer,  unless it is
          proved that the Trustee was  negligent in  ascertaining  the pertinent
          facts; and


                                       41
<PAGE>


                    (3) The  Trustee  shall not be liable  with  respect  to any
          action it takes or omits to take in good  faith in  accordance  with a
          direction received by it pursuant to Sections 6.04 and 6.05.

          (d) Every  provision of this  Indenture that in any way relates to the
Trustee is subject to paragraph (a), (b), and (c) of this Section.

          (e) The Trustee  may refuse to perform any duty or exercise  any right
or power  unless it  receives  indemnity  satisfactory  to it against  any loss,
liability, or expense.

          (f) The Trustee shall not be liable for interest on any money received
by it except as the Trustee may agree with the Company or the  Guarantor.  Money
held in trust by the Trustee need not be  segregated  from other funds except to
the extent required by law.

          Section 7.02 RIGHTS OF TRUSTEE.

          (a) The Trustee may rely on any document  believed by it to be genuine
and to have been signed or presented by the proper person.  The Trustee need not
investigate any fact or matter stated in the document.

          (b) Before the Trustee acts or refrains  from  acting,  it may consult
with counsel or require an Officers'  Certificate or an Opinion of Counsel.  The
Trustee  shall  not be liable  for any  action it takes or omits to take in good
faith  in  reliance  on a  Board  Resolution,  the  written  advice  of  counsel
acceptable to the Company,  the Guarantor,  and the Trustee, a certificate of an
Officer  or  Officers  delivered  pursuant  to  Section  2.02(c),  an  Officers'
Certificate, or an Opinion of Counsel.

          (c) The Trustee may act  through  agents and shall not be  responsible
for the misconduct or negligence of any agent appointed with due care.

          (d) The  Trustee  shall not be liable for any action it takes or omits
to take in good faith which it believes to be authorized or within its rights or
powers.

          (e) Except as otherwise  provided in Section  7.01,  the Trustee shall
not be liable for any action or omission of any Agent which is not the Trustee.

          Section  7.03  INDIVIDUAL  RIGHTS  OF  TRUSTEE.  The  Trustee  in  its
individual  or any other  capacity may become the owner or pledgee of Securities
and may otherwise deal with the Company,  or one of its Affiliates with the same
rights it would have if it were not Trustee,  subject to Sections 7.10 and 7.11.
Any Agent may do the same with like rights.


                                       42
<PAGE>


          Section 7.04 TRUSTEE'S DISCLAIMER. The Trustee makes no representation
as to the  validity or  adequacy  of this  Indenture  or the  Securities  or the
Guarantees.  It shall not be  accountable  for the Company's use of the proceeds
from the  Securities or for monies paid over to the Company or by the Company to
any Holders or to any Paying Agent pursuant to the  Indenture,  and it shall not
be responsible for any statement in the Securities other than its certificate of
authentication.

          Section 7.05 NOTICE OF DEFAULTS. If a Default occurs and is continuing
with respect to the  Securities of any Series and if it is known to the Trustee,
the Trustee  shall mail to each Holder of a Security of that Series  entitled to
receive reports pursuant to TIA Sections 315(b) and 313(c) (and, if Unregistered
Securities of that Series are outstanding,  shall cause to be published at least
once in an  Authorized  Newspaper in the City of New York) notice of the Default
within 90 days  after it  occurs.  Except in the case of a Default in payment on
the Securities of any Series, the Trustee may withhold the notice if and so long
as its Corporate Trust  Committee or a committee of its Responsible  Officers in
good faith  determines  that  withholding  such  notice is in the  interests  of
Securityholders of that Series.

          Section 7.06 REPORTS BY TRUSTEE TO HOLDERS.

          (a) Within 60 days after each anniversary date of the first issue of a
Series of  Securities,  the Trustee  shall mail to each  Securityholder  of that
Series entitled to receive reports pursuant to TIA Section 313(c) a brief report
dated as of such date that  complies with TIA Section  313(a).  The Trustee also
shall comply with TIA Section 313(b).

          (b) At the time that it mails such a report to  Securityholders of any
Series,  the Trustee shall file a copy of that report with the SEC and with each
stock  exchange on which the  Securities of that Series are listed.  The Company
shall provide  written  notice to the Trustee when the  Securities of any Series
are listed on any stock exchange.

          Section 7.07 COMPENSATION AND INDEMNITY.

          (a) The Company and the  Guarantor  shall pay to the Trustee from time
to time reasonable  compensation  for its services.  The Trustee's  compensation
shall not be  limited  by any law on  compensation  of a trustee  of an  express
trust.  The Company and the Guarantor  shall  reimburse the Trustee upon request
for all reasonable  out-of-pocket expenses incurred by it in connection with the
performance of its duties under this Indenture.  Such expenses shall include the
reasonable compensation and expenses of the Trustee's agents and counsel.

          (b) The Company and the Guarantor  shall indemnify the Trustee against
any loss or liability  incurred by it arising out of or in  connection  with its
acceptance or


                                       43
<PAGE>


administration  of the trust or trusts  hereunder.  The Trustee shall notify the
Company and the Guarantor promptly of any claim for which it may seek indemnity.
The Company and the  Guarantor  shall  defend the claim,  and the Trustee  shall
cooperate in the defense.  The Trustee may have separate counsel and the Company
and the Guarantor  shall pay the  reasonable  fees and expenses of such counsel.
Neither the Company nor the Guarantor need pay for any  settlement  made without
its consent.

          (c) Neither the Company nor the Guarantor  need  reimburse any expense
or  indemnify  against any loss of  liability  incurred  by the Trustee  through
negligence or bad faith.

          (d) To secure the payment obligations of the Company and the Guarantor
pursuant to this Section,  the Trustee shall have a lien prior to the Securities
of any Series on all money or property held or collected by the Trustee,  except
that held in trust to pay principal  and interest on particular  Securities of a
Series.

          (e) If the Trustee incurs expenses or renders  services after an Event
of  Default  specified  in  Section  6.01(e)  occurs,   such  expenses  and  the
compensation   for  such  services  are  intended  to  constitute   expenses  of
administration under any bankruptcy law.

          Section 7.08 REPLACEMENT OF TRUSTEE.

          (a) The resignation or removal of the Trustee and the appointment of a
successor  Trustee  shall become  effective  only upon the  successor  Trustee's
acceptance of appointment as provided in this Section.

          (b) The  Trustee  may resign  with  respect to the  Securities  of any
Series by so notifying the Company and the Guarantor.  The Holders of a majority
in principal  amount of the Securities of any Series may remove the Trustee with
respect  to that  Series by so  notifying  the  Trustee,  the  Company,  and the
Guarantor  and may appoint a successor  Trustee for such Series with the consent
of the Company and the Guarantor.

          (c) The Company and the  Guarantor may remove the Trustee with respect
to Securities of any Series if:

                    (1) the Trustee fails to comply with Section 7.10;

                    (2) the Trustee is adjudged a bankrupt or an insolvent;

                    (3) a receiver or public officer takes charge of the Trustee
          or its property; or

                    (4) the Trustee becomes incapable of acting.


                                       44
<PAGE>


          In addition, the Company and the Guarantor may remove the Trustee with
respect  to  Securities  of any  Series  without  cause if the  Company  and the
Guarantor give written  notice to the Trustee of such proposed  removal at least
six months in advance of the proposed effective date of such removal;  provided,
however, that such removal shall not become effective if a Default exists on the
date of the giving of such  notice or occurs  prior to the date such  removal is
scheduled to become effective.

          (d) If the Trustee resigns or is removed or if a vacancy exists in the
office of Trustee for any reason,  with respect to Securities of any Series, the
Company and the Guarantor  shall promptly  appoint a successor  Trustee for such
Series.

          (e) If a  successor  Trustee  with  respect to the  Securities  of any
Series does not take office within 30 days after the retiring Trustee resigns or
is removed, the retiring Trustee, the Company, the Guarantor,  or the Holders of
a majority in principal  amount of the Securities of the  applicable  Series may
petition any court of competent  jurisdiction for the appointment of a successor
Trustee.

          (f) If the Trustee with respect to the  Securities of any Series fails
to comply with Section 7.10, any  Securityholder  of the  applicable  Series may
petition any court of competent jurisdiction for the removal of such Trustee and
the appointment of a successor Trustee.

          (g) A successor  Trustee  shall  deliver a written  acceptance  of its
appointment to the retiring Trustee, the Guarantor, and the Company.  Thereupon,
the resignation or removal of the retiring  Trustee for any Series of Securities
shall become  effective,  and the  successor  Trustee shall have all the rights,
powers,  and  duties of the  retiring  Trustee  with  respect  to all  Series of
Securities for which the successor Trustee is to be acting as Trustee under this
Indenture.  The retiring Trustee shall promptly transfer all property held by it
as Trustee with respect to such Series of Securities  to the  successor  Trustee
subject to the lien provided for in Section 7.07.  The Company shall give notice
of each  appointment  of a  successor  Trustee for any Series of  Securities  by
publishing  notice of such event once in an Authorized  Newspaper in the City of
New York and by mailing written notice of such event by first-class  mail to the
Holders of Securities  of such Series  entitled to receive  reports  pursuant to
Section 4.02(c).

          (h) All  provisions of this Section 7.08 except  subparagraphs  (c)(1)
and (d) and the words  "subject  to the lien  provided  for in Section  7.07" in
subparagraph (g) shall apply also to any Paying Agent located outside the United
States and its possessions and required by Section 2.04.

          (i) In case of the appointment  hereunder of a successor  Trustee with
respect to the Securities of one or more (but not all) Series, the Company,  the
Guarantor,  the retiring  Trustee,  and such successor Trustee shall execute and
deliver a supplemental


                                       45
<PAGE>


indenture  wherein such  successor  Trustee shall accept such  appointment,  and
which (1) shall  contain such  provisions  as shall be necessary or desirable to
transfer and confirm to, and to vest in, such successor  Trustee all the rights,
powers,  trusts,  and  duties  of  the  retiring  Trustee  with  respect  to the
Securities of that or those Series to which the  appointment  of such  successor
Trustee relates; (2) if the retiring Trustee is not retiring with respect to all
Securities,  shall  contain  such  provisions  as shall be deemed  necessary  or
desirable  to  confirm  that all the  rights,  powers,  trusts and duties of the
retiring  Trustee with respect to the  Securities  of that or those Series as to
which the retiring  Trustee is not retiring  shall  continue to be vested in the
retiring  Trustee;  and (3) shall add to or change any of the provisions of this
Indenture as shall be necessary to provide for or facilitate the  administration
of the trusts  hereunder  by more than one  Trustee,  it being  understood  that
nothing herein or in such supplemental  indenture shall constitute such Trustees
co-trustees  of the same trust and that each such Trustee  shall be trustee of a
trust or trusts hereunder  separate and apart from any trust or trusts hereunder
administered by any other such Trustee.

          Section 7.09 SUCCESSOR TRUSTEE,  AGENTS BY MERGER, ETC. If the Trustee
or any Agent  consolidates  with,  merges or converts  into, or transfers all or
substantially   all  of  its  corporate   trust  business   assets  to,  another
corporation,  the successor  corporation,  without any further act, shall be the
successor Trustee or Agent, as the case may be.

          Section  7.10  ELIGIBILITY;  DISQUALIFICATION.  This  Indenture  shall
always have a Trustee with respect to each Series of  Securities  who  satisfies
the requirements of TIA Section 310(a)(1).

          The Trustee  shall  always  have a combined  capital and surplus of at
least  $10,000,000  as set forth in its most recent  published  annual report of
condition.  The Trustee is subject to TIA Section 310(b), including the optional
provision permitted by the second sentence of TIA Section 310(b)(9), except that
there shall be excluded from the operation of TIA Section  310(b)(1) each Series
of Securities and all indentures of the Company, the Guarantor,  or any of their
Affiliates now or hereafter  existing which may be excluded under the proviso of
TIA Section 310(b)(1).

          Section 7.11  PREFERENTIAL  COLLECTION OF CLAIMS  AGAINST THE COMPANY.
The  Trustee  is  subject  to  TIA  Section   311(a),   excluding  any  creditor
relationship  listed in TIA Section  311(b).  A Trustee who has resigned or been
removed shall be subject to TIA Section 311(a) to the extent indicated.



                                       46
<PAGE>

                                   ARTICLE 8.

                       DEFEASANCE AND COVENANT DEFEASANCE

          Section 8.01 COMPANY'S AND GUARANTOR'S  OPTION TO EFFECT DEFEASANCE OR
COVENANT DEFEASANCE.

          The Company and the  Guarantor  may, at each of their  option by Board
Resolution,  with respect to the  Securities  of any  outstanding  Series in its
entirety or of all outstanding  Series issued under this Indenture elect to have
either  Section 8.02 or Section 8.03 be applied to all of the Securities of such
Series (the  "Defeased  Securities"),  upon  compliance  with the conditions set
forth below in this Article 8.

          Section 8.02 DEFEASANCE AND DISCHARGE.

          Upon the Company's or  Guarantor's  exercise under Section 8.01 of the
option applicable to this Section 8.02, the Company, the Guarantor and any other
obligor upon the Securities to be defeased, if any, shall be deemed to have been
discharged from its obligations  with respect to the Defeased  Securities on the
date the conditions set forth in Section 8.04 below are satisfied  (hereinafter,
"defeasance").  For this purpose,  such defeasance  means that the Company,  the
Guarantor  and any other  obligor upon the  Securities  to be defeased  shall be
deemed to have paid and discharged  the entire Debt  represented by the Defeased
Securities,  which shall thereafter be deemed to be  "outstanding"  only for the
purposes of Section 8.05 and the other Sections of this Indenture referred to in
(a) and (b) below,  and to have satisfied all its other  obligations  under such
Securities and this Indenture  insofar as such Securities are concerned (and the
Trustee,  at the expense of the Company and upon the  Company's  request,  shall
execute proper  instruments  acknowledging  the same),  except for the following
which shall survive until otherwise terminated or discharged hereunder:  (a) the
rights of Holders of Defeased Securities to receive,  solely from the trust fund
described in Section 8.04 and as more fully set forth in such Section,  payments
in  respect  of the  principal  of,  premium,  if any,  and  interest  on,  such
Securities,  when such payments are due, (b) the  Company's and the  Guarantor's
obligations with respect to such Defeased  Securities under Sections 2.08, 2.09,
2.12 and 4.02,  (c) the rights,  powers,  trusts,  duties and  immunities of the
Trustee hereunder,  including,  without  limitation,  the Trustee's rights under
Section 7.07, and (d) this Article 8. Subject to compliance with this Article 8,
the Company or the Guarantor may exercise each of its options under this Section
8.02  notwithstanding  the prior  exercise of its option under Section 8.03 with
respect to the Securities to be defeased.

          Section 8.03 COVENANT DEFEASANCE.

          Upon the Company's or the  Guarantor's  exercise under Section 8.01 of
the option  applicable to this Section 8.03, the Company or the Guarantor  shall
be released


                                       47
<PAGE>


from its obligations under any covenant or provision contained or referred to in
Sections 4.03,  4.04, 4.07,  4.08,  4.09,  4.10, 4.11 and 4.12,  inclusive,  and
Article 5 hereof,  with respect to the Defeased Securities on and after the date
the  conditions  set forth in  Section  8.04 below are  satisfied  (hereinafter,
"covenant  defeasance "), and the Defeased Securities shall thereafter be deemed
to be not  "outstanding" for the purposes of any direction,  waiver,  consent or
declaration  or act  of  Holders  (and  the  consequences  of  any  thereof)  in
connection  with such covenants,  but shall continue to be deemed  "outstanding"
for all other purposes  hereunder.  For this purpose,  such covenant  defeasance
means  that,  with  respect  to the  Defeased  Securities,  the  Company  or the
Guarantor  may omit to comply with and shall have no liability in respect of any
term, condition or limitation set forth in any such Section, whether directly or
indirectly,  by reason of any reference  elsewhere herein to any such Section or
by reason of any reference in any such Section to any other provision  herein or
in any other document and such omission to comply shall not constitute a Default
or an Event of Default under Section 6.01(c) but, except as specified above, the
remainder of this  Indenture  and such Defeased  Securities  shall be unaffected
thereby.

          Section 8.04 CONDITIONS TO DEFEASANCE OR COVENANT DEFEASANCE.

          The following shall be the conditions to application of either Section
8.02 or Section 8.03 to the Defeased Securities:

          (a) The Company or the Guarantor shall  irrevocably  have deposited or
caused to be deposited  with the Trustee as trust funds in trust for the purpose
of making the  following  payments,  specifically  pledged as security  for, and
dedicated solely to, the benefit of the Holders of such Securities,  (i) cash in
U.S. dollars, (ii) U.S. Government Obligations,  or (iii) a combination thereof,
in such  amounts  (together  with  interest  to be paid  thereunder)  as will be
sufficient, in the opinion of a nationally recognized firm of independent public
accountants or a nationally  recognized  investment  banking firm expressed in a
written  certification  thereof delivered to the Trustee,  to pay and discharge,
and which shall be applied by the Trustee to pay and  discharge,  the  principal
of,  premium,  if any, and interest on, the Defeased  Securities,  on the stated
date for payment thereof or on the applicable  redemption  date, as the case may
be, of such principal,  premium, if any, or interest on such Defeased Securities
if at or prior to electing to exercise  either its option  applicable to Section
8.02 or its option  applicable to Section 8.03, the Company or the Guarantor has
delivered to the Trustee an irrevocable notice of such defeasance, including the
date that such defeasance is to occur.

          For this purpose, "U S. Government  Obligations" means securities that
are (i)  direct  obligations  of the  United  States of  America  for the timely
payment of which its full faith and credit is pledged or (ii)  obligations  of a
person controlled or supervised by


                                       48
<PAGE>


and acting as an agency or  instrumentality  of the United States of America the
timely payment of which is unconditionally guaranteed as a full faith and credit
obligation  by the United  States of America,  which,  in either  case,  are not
callable  or  redeemable  at the  option of the issuer  thereof,  and shall also
include a depositary receipt issued by a bank (as defined in Section 3(a) (2) of
the Securities Act), or trust company as custodian with respect to any such U.S.
Government  Obligation or a specific  payment of principal of or interest on any
such U.S.  Government  Obligation  held by such custodian for the account of the
holder of such  depositary  receipt,  provided  that (except as required by law)
such  custodian is not  authorized to make any deduction from the amount payable
to the  holder  of such  depositary  receipt  from any  amount  received  by the
custodian in respect of the U.S.  Government  Obligation or the specific payment
of principal of or interest on the U.S. Government  Obligation evidenced by such
depositary receipt.

          (b) The  Company  or the  Guarantor,  as the case may be,  shall  have
delivered to the Trustee an Opinion of Counsel in the United  States  reasonably
acceptable  to the Trustee  confirming  that (i) the Holders of the  outstanding
Securities to be defeased will not  recognize  income,  gain or loss for Federal
income tax  purposes as a result of such  deposit and will be subject to Federal
income tax on the same amounts, in the same manner and at the same time as would
have  been the case if such  deposit  had not  occurred,  which in the case of a
defeasance  under  Section  8.02 must be based on a change in law or a published
ruling by the United States Internal  Revenue Service and (ii) the deposit shall
not result in the Company or the Guarantor being deemed an "investment  company"
required to be registered under the Investment Company Act of 1940, as amended;

          (c) No Event of  Default,  or event which with notice or lapse of time
would  become an Event of Default  (including  by reason of such  deposit)  with
respect to the  Securities  shall have occurred and be continuing on the date of
such  deposit,  and with  respect to an election  under  Section 8.02 insofar as
Section 6.01(e) is concerned,  at any time during the period ending on the 181st
day after the date of deposit (it being understood that this condition shall not
be deemed satisfied until the expiration of such period);

          (d) Such  defeasance  or  covenant  defeasance  shall not  result in a
breach or violation of, or  constitute a Default  under,  this  Indenture or any
other material  agreement or instrument to which the Company or the Guarantor is
a party or by which it is bound; and

          (e) The  Company  or the  Guarantor,  as the case may be,  shall  have
delivered to the Trustee an Offers'  Certificate as to the  compliance  with all
conditions  precedent provided for in the Indenture relating to the satisfaction
and discharge of the Securities to be defeased.


                                       49
<PAGE>


          Opinions of Counsel  required to be delivered under this Section shall
be in form and  substance  reasonably  satisfactory  to the Trustee and may have
qualifications   customary  for  opinions  of  the  type  required  and  counsel
delivering such opinions may rely on certificates of the Company,  the Guarantor
or government or other  officials  customary for opinions of the type  required,
which  certificates  shall be  limited as to  matters  of fact,  including  that
various financial covenants have been complied with.

          Section 8.05  DEPOSITED  MONEY AND U.S.  GOVERNMENT  OBLIGATIONS TO BE
HELD IN TRUST; OTHER MISCELLANEOUS PROVISIONS.

          Subject to the provisions of Section 4.05,  all U.S.  dollars and U.S.
Government  Obligations  (including  the proceeds  thereof)  deposited  with the
Trustee pursuant to Section 8.04, in respect of the Defeased Securities shall be
held in trust and applied by the Trustee,  in accordance  with the provisions of
such Securities and this Indenture,  to the payment,  either directly or through
any Paying Agent (excluding the Company,  the Guarantor or any of its Affiliates
acting as Paying Agent),  as the Trustee may  determine,  to the Holders of such
Securities  of all sums due and to become due  thereon in respect of  principal,
premium, if any, and interest,  but such money need not be segregated from other
funds except to the extent required by law.

          The  Company and the  Guarantor  shall pay and  indemnify  the Trustee
against any tax,  fee or other  charge  imposed on or assessed  against the U.S.
Government  Obligations  deposited pursuant to Section 8.04 or the principal and
interest  received  in respect  thereof  other  than any such tax,  fee or other
charge  which by law is  imposed,  assessed or for the account of the Holders of
the Defeased Securities.

          Anything  in  this  Article  8 to the  contrary  notwithstanding,  the
Trustee shall deliver or pay to the Company from time to time upon the Company's
request any U.S. dollars or U.S.  Government  Obligations held by it as provided
in Section  8.04  which,  in the  opinion  of a  nationally  recognized  firm of
independent  public  accountants  expressed in a written  certification  thereof
delivered to the Trustee,  are in excess of the amount  thereof which would then
be required to be deposited to effect defeasance or covenant defeasance.

          Section 8.06 REINSTATEMENT.

          If the Trustee or Paying Agent is unable to apply any U.S.  dollars or
U.S. Government Obligations in accordance with Section 8.02 or 8.03, as the case
may be,  by  reason  of any  order or  judgment  of any  court  or  governmental
authority enjoining, restraining or otherwise prohibiting such application, then
the  Company's  and the  Guarantor's  obligations  under this  Indenture and the
Securities shall be revived and reinstated, with present and prospective effect,
as though no deposit had occurred


                                       50
<PAGE>


pursuant  to Section  8.02 or 8.03,  as the case may be,  until such time as the
Trustee  or Paying  Agent is  permitted  to apply all such U.S.  dollars or U.S.
Government  Obligations in accordance with Section 8.02 or 8.03, as the case may
be; provided, however, that if the Company or the Guarantor makes any payment to
the Trustee or Paying Agent of principal of, premium, if any, or interest on any
Security  following the reinstatement of its obligations,  the Trustee or Paying
Agent shall  promptly pay any such amount to the Holders of the  Securities  and
the Company or the Guarantor shall be subrogated to the rights of the Holders of
such  Securities  to  receive  such  payment  from  the  U.S.  dollars  and U.S.
Government Obligations held by the Trustee or Paying Agent.


                                   ARTICLE 9.

                 AMENDMENTS AND WAIVERS; SUPPLEMENTAL INDENTURES

          Section 9.01 WITHOUT CONSENT OF HOLDERS.  The Company (when authorized
pursuant to a Board Resolution),  the Guarantor,  (when authorized pursuant to a
Board  Resolution),  and the  Trustee  may enter  into one or more  supplemental
indentures  without  consent  of any  Securityholder  for  any of the  following
purposes:

                    (1) to cure any ambiguity,  defect, or inconsistency herein,
          in any supplemental  indenture,  in the Securities of any Series or in
          the Guarantees;

                    (2) to comply with Article 5;

                    (3) to make any change  that does not  adversely  affect the
          rights of any Holder of Securities;

                    (4) to add to the rights of Holders of any Securities;

                    (5) to secure the Securities pursuant to Section 4.03.

                    (6) to  evidence  the  succession  of another  person to the
          Company or the Guarantor,  and the assumption by any such successor of
          the  covenants  of the Company or the  Guarantor,  as the case may be,
          contained herein and in the Securities; or

                    (7) to  establish  the form or terms  of  Securities  of any
          Series; or

                    (8)  to  evidence   and  provide  for  the   acceptance   of
          appointment  hereunder  by a  successor  Trustee  with  respect to the
          Securities  of one or more  Series  and to add to or change any of the
          provisions  of this  Indenture as shall be


                                       51
<PAGE>

          necessary  to provide  for or  facilitate  the  administration  of the
          trusts hereunder by more than one Trustee; or

                    (9) to supplement any of the provisions of this Indenture to
          such  extent  as  shall be  necessary  to  permit  or  facilitate  the
          defeasance  and discharge of any Series of  Securities,  provided that
          any such action shall not adversely affect the interests of any Holder
          of a Security  of such Series or any other  Security  in any  material
          respect.

          Section 9.02 WITH CONSENT OF HOLDERS.

          (a) With the written consent of the Holders of a majority in principal
amount  of  the   outstanding   Securities  of  each  Series  affected  by  such
supplemental  indenture (with each Series voting as a class),  by Act of Holders
delivered to the Company,  the  Guarantor  and the  Trustee,  the Company  (when
authorized  pursuant to a Board  Resolution),  the  Guarantor  (when  authorized
pursuant to a Board  Resolution),  and the Trustee may enter into a supplemental
indenture to add any  provisions to or to change or eliminate any  provisions of
this Indenture or of any  supplemental  indenture or to modify,  in each case in
any manner not covered by Section  9.01,  the rights of the  Securityholders  of
each  such  Series.  The  Holders  of a  majority  in  principal  amount  of the
outstanding  Securities of each Series affected by such waiver (with each Series
voting  as a  class),  by notice to the  Trustee,  may waive  compliance  by the
Company or the Guarantor with any provision of this Indenture,  any supplemental
indenture, or the Securities of any such Series. However, without the consent of
each Securityholder affected, an amendment or waiver may not:

                    (1) reduce  the  amount of  Securities  whose  Holders  must
          consent to an amendment or waiver;

                    (2)  change  the rate of or change  the time for  payment of
          interest on any Security;

                    (3) change the principal of or change the fixed  maturity of
          any Security;

                    (4) waive a Default  in the  payment  of the  principal  of,
          premium, if any, or interest on any Security;

                    (5) make any  Security  payable in currency  other than that
          stated in the Security;

                    (6) make any change in Section 6.04, 6.07, or 9.02;


                                       52
<PAGE>


                    (7) impair the right to institute  suit for the  enforcement
          of any payment on or after the stated  maturity of such payment or, in
          the case of redemption, on or after the redemption date;

                    (8)  modify or effect in any manner  adverse to the  Holders
          the  terms and  conditions  of the  obligations  of the  Guarantor  in
          respect  of the due and  punctual  payments  of  principal  of, or any
          premium  or  interest  on or  any  sinking  fund  requirements  of any
          Securities.

          A supplemental  indenture  which changes or eliminates any covenant or
other provision of this Indenture  which shall have been included  expressly and
solely for the benefit of one or more particular Series of Securities,  or which
modifies the rights of the Holders of  Securities of such Series with respect to
such covenant or other provision, shall be deemed not to affect the rights under
this Indenture of the Holders of Securities of any other Series.

          (b)  It  is  not   necessary   under   this   Section   9.02  for  the
Securityholders  to consent to the particular form of any proposed  supplemental
indenture, but it is sufficient if they consent to the substance thereof.

          (c) Promptly after the execution by the Company,  the  Guarantor,  and
the Trustee of any  supplemental  indenture  pursuant to the  provisions of this
Section  9.02,  the Company  shall  transmit by mail a notice,  setting forth in
general terms the substance of such  supplemental  indenture,  to all Holders of
Registered Securities,  as the names and addresses of such Holders appear on the
register  for each Series of  Securities,  and to such  Holders of  Unregistered
Securities as are entitled to receive  reports  pursuant to TIA Section  313(c).
Any failure of the Company to mail such  notice,  or any defect  therein,  shall
not, however,  in any way impair or affect the validity of any such supplemental
indenture.

          Section 9.03 EXECUTION OF SUPPLEMENTAL  INDENTURES.  As a condition to
executing,  or accepting  the  additional  trusts  created by, any  supplemental
indenture  permitted by this Article or the  modifications  thereby of the trust
created by this  Indenture,  the  Trustee  shall be  entitled  to  receive,  and
(subject to Section 315 of the TIA) shall be fully protected in relying upon, an
Opinion of Counsel stating that the execution of such supplemental  indenture is
authorized  or  permitted by this  Indenture.  The Trustee may, but shall not be
obligated  to,  enter into any such  supplemental  indenture  which  affects the
Trustee's own rights, duties or immunities under this Indenture or otherwise.

          Section 9.04 EFFECT OF SUPPLEMENTAL INDENTURES.  Upon the execution of
any supplemental  indenture under this Article, this Indenture shall be modified
in accordance  therewith,  and such supplemental  indenture shall form a part of


                                       53
<PAGE>


this Indenture for all purposes;  and every Holder of a Security  theretofore or
thereafter authenticated and delivered hereunder shall be bound thereby.

          Section  9.05  REFERENCE IN  SECURITIES  TO  SUPPLEMENTAL  INDENTURES.
Securities of any Series  authenticated and delivered after the execution of any
supplemental  indenture  pursuant to this  Article may, and shall if required by
the  Trustee,  bear a notation in form  approved by the Trustee as to any matter
provided for in such supplemental  indenture. If the Company shall so determine,
new  Securities  of any Series so modified as to conform,  in the opinion of the
Trustee, the Company and the Guarantor to any such supplemental indenture may be
prepared  and  executed  by  the  Company,   guaranteed  by  the  Guarantor  and
authenticated   and  delivered  by  the  Trustee  in  exchange  for  outstanding
Securities of such Series.

          Section 9.06  COMPLIANCE  WITH TRUST INDENTURE ACT. Every amendment to
this Indenture or the Securities of one or more previously  created Series shall
be set forth in a  supplemental  indenture that complies with the TIA as then in
effect.

          Section 9.07 REVOCATION AND EFFECT OF CONSENTS.  Until an amendment or
waiver  becomes  effective,  a  consent  to it by a Holder  of a  Security  is a
continuing  consent by the Holder and every  subsequent  Holder of a Security or
portion of a Security that  evidences the same debt as the  consenting  Holder's
Security even if a notation of the consent is not made on any Security. However,
any such Holder or  subsequent  Holder may revoke the consent as to his Security
or  portion  of his  Security  if the  Trustee  receives  a  written  notice  of
revocation before the date the amendment or waiver becomes  effective.  After an
amendment or waiver becomes  effective,  it shall bind every  Securityholder  of
each Series affected by such amendment or wavier.

          Section 9.08 NOTATION ON OR EXCHANGE OF SECURITIES.  The Trustee shall
place an  appropriate  notation  about an amendment or waiver on any Security of
any Series thereafter authenticated.  The Company, in exchange for Securities of
that  Series may issue,  the  Guarantor  may  guarantee  and the  Trustee  shall
authenticate new Securities of that Series that reflect the amendment or waiver.

          Section  9.09  TRUSTEE  PROTECTED.  The  Trustee  need  not  sign  any
supplemental indenture that adversely affects its rights or obligations.



                                       54
<PAGE>

                                   ARTICLE 10.

                                  MISCELLANEOUS

          Section 10.01 TRUST  INDENTURE ACT CONTROLS.  If any provision of this
Indenture  limits,  qualifies or conflicts with a provision which is required to
be included in this Indenture by the TIA, the required provision shall control.

          Section 10.02 ACTS OF HOLDERS.

          (a) Any request, demand,  authorization,  direction,  notice, consent,
waiver  or  other  action  provided  by this  Indenture  to be given or taken by
Holders  may  be  embodied  in and  evidenced  by one  or  more  instruments  of
substantially similar tenor signed by such Holders in person or by an agent duly
appointed in writing;  and, except as herein otherwise expressly provided,  such
action shall become  effective when such instrument or instruments are delivered
to the Trustee and, where it is hereby  expressly  required,  to the Company and
the Guarantor.  Such instrument or instruments  (and the action embodied therein
and  evidenced  thereby)  are herein  sometimes  referred to as the "Act" of the
Holders signing such  instrument or instruments.  Proof of execution of any such
instrument or of a writing appointing any such agent shall be sufficient for any
purpose of this  Indenture and  conclusive in favor of the Trustee,  the Company
and the Guarantor, if made in the manner provided in this Section.

          (b) The ownership of Securities shall be proved by the Registrar.

          (c) Any request, demand,  authorization,  direction,  notice, consent,
waiver or other Act by the Holder of any Security shall bind every future Holder
of the same  Security or the Holder of every  Security  issued upon the transfer
thereof or in exchange therefor or in lieu thereof, in respect of anything done,
suffered or omitted to be done by the Trustee,  any Paying  Agent,  the Company,
the  Guarantor or any other obligor of the  Securities in the reliance  thereon,
whether or not notation of such action is made upon such Security.

          (d) The fact  and  date of the  execution  by any  person  of any such
instrument  or  writing  may be proved  by the  affidavit  of a witness  of such
execution or by a certificate of a notary public or other officer  authorized by
law to take  acknowledgments  of deeds,  certifying that the individual  signing
such instrument or writing acknowledged to him the execution thereof. Where such
execution  is by a  signer  acting  in a  capacity  other  than  his  individual
capacity,  such certificates or affidavit shall also constitute sufficient proof
of his authority.  The fact and date of the execution of any such  instrument or
writing,  or the authority of the person  executing the same, may also be proved
in any other manner which the Trustee deems sufficient.


                                       55
<PAGE>


          (e) If the Company or the Guarantor shall solicit from the Holders any
request, demand, authorization, direction, notice, consent, waiver or other Act,
the  Company or the  Guarantor  may,  at its  option,  by or pursuant to a Board
Resolution,  fix in advance a record date for the  determination of such Holders
entitled  to  give  such  request,  demand,  authorization,  direction,  notice,
consent,  waiver or other Act, but the Company and the  Guarantor  shall have no
obligation to do so. Notwithstanding  Section 316(c) of the TIA, any such record
date shall be the record date specified in or pursuant to such Board Resolution,
which shall be a date not more than 30 days prior to the first  solicitation  of
Holders generally in connection  therewith and no later than the date such first
solicitation is completed.

          If such a record date is fixed, such request,  demand,  authorization,
direction, notice consent, waiver or other Act may be given before or after such
record  date,  but only the  Holders of record at the close of  business on such
record date shall be deemed to be Holders for  purposes of  determining  whether
Holders  of  the  requisite  proportion  of  Securities  than  outstanding  have
authorized  or agreed  or  consented  to such  request,  demand,  authorization,
direction,  notice,  consent,  waiver or other  Act,  and for this  purpose  the
Securities then outstanding  shall be computed as of such record date;  provided
that no such request, demand, authorization,  direction, notice, consent, waiver
or other Act by the Holders on such record date shall be deemed effective unless
it shall become effective pursuant to the provisions of this Indenture not later
than six months after such record date.

          (f) For the  purposes  of this  Indenture,  any action by the  Holders
which may be taken in writing may be taken by  electronic  means or as otherwise
reasonably acceptable to the Trustee.

          Section 10.03 NOTICES.

          (a) Any notice or communication by the Company, the Guarantor,  or the
Trustee  is duly  given if in  writing  and  delivered  in  person  or mailed by
certified mail:

          if to the Company to:

          Alliant Energy Resources, Inc.
          222 West Washington Avenue
          Madison, Wisconsin 53703
          Attention:  Corporate Secretary


                                       56
<PAGE>


          if to the Guarantor to:

          Alliant Energy Corporation
          222 West Washington Avenue
          Madison, Wisconsin 53703
          Attention:  Corporate Secretary

          if to the Trustee to:

          Firstar Bank, N.A.
          1555 North RiverCenter Drive, Suite 301
          Milwaukee, Wisconsin  53212
          Attention:  Corporate Trust Department

          (b) The Company, the Guarantor, or the Trustee by notice to the others
may  designate  additional  or different  addresses  for  subsequent  notices or
communications.

          (c) Any notice or communication  to Holders of Securities  entitled to
receive  reports  pursuant to TIA Section  313(c) shall be mailed by first-class
mail to the addresses for Holders of Registered Securities shown on the register
kept by the Registrar and to addresses filed with the Trustee for other Holders.
Failure to so mail a notice or  communication  or any  defect in such  notice or
communication  shall not affect its sufficiency with respect to other Holders of
Securities of that or any other Series entitled to receive notice.

          (d) If a notice of  communication  is mailed  in the  manner  provided
above within the time prescribed,  it is conclusively presumed to have been duly
given, whether or not the addressee receives it.

          (e) If the Company or the Guarantor mails a notice or communication to
Securityholders,  it shall mail a copy to the  Trustee  and to each Agent at the
same time.

          (f) If it shall be  impractical  in the  opinion of the  Trustee,  the
Guarantor,  or the Company to make any publication of any notice required hereby
in an  Authorized  Newspaper,  any  publication  or other notice in lieu thereof
which is made or given with the  approval  of the  Trustee  shall  constitute  a
sufficient publication of such notice.

          Section   10.04   COMMUNICATION   BY  HOLDERS   WITH  OTHER   HOLDERS.
Securityholders of any Series may communicate  pursuant to Section 312(b) of the
TIA with other  Securityholders  of that Series or of all Series with respect to
their rights under this  Indenture or under the  Securities of that Series or of
all Series. The


                                       57
<PAGE>


Company, the Guarantor,  the Trustee, the Registrar,  and anyone else shall have
the protection of Section 312(c) of the TIA.

          Section 10.05 CERTIFICATE AND OPINION AS TO CONDITIONS PRECEDENT. Upon
any request or  application  by the Company or the  Guarantor  to the Trustee to
take any action under this Indenture, the Company or the Guarantor shall furnish
to the Trustee:

                    (1) an Officers' Certificate stating that, in the opinion of
          the signers,  all conditions  precedent,  if any, provided for in this
          Indenture relating to the proposed action have been complied with; and

                    (2) an Opinion of Counsel  stating  that,  in the opinion of
          such counsel, all such conditions precedent have been complied with.

          Section 10.06  STATEMENTS  REQUIRED IN  CERTIFICATE  OR OPINION.  Each
certificate  or opinion with respect to compliance  with a condition or covenant
provided for in this Indenture shall include:

                    (1) a statement  that the person making such  certificate or
          opinion has read such covenant or condition;

                    (2) a brief  statement  as to the  nature  and  scope of the
          examination  or  investigation  upon which the  statements or opinions
          contained in such certificate or opinion are based;

                    (3) a statement that, in the opinion of such person,  he has
          made such  examination or  investigation as is necessary to enable him
          to express an informed  opinion as to whether or not such  covenant or
          condition has been complied with; and

                    (4) a statement as to whether or not, in the opinion of such
          person, such condition or covenant has been complied with.

          Section  10.07  RULES BY TRUSTEE  AND  AGENTS.  The  Trustee  may make
reasonable rules for action by or at a meeting of Securityholders of one or more
Series.  The  Paying  Agent or  Registrar  may  make  reasonable  rules  and set
reasonable requirements for its functions.

          Section 10.08 LEGAL  HOLIDAYS.  Except as may otherwise be provided in
the form of Securities of any  particular  Series  pursuant to the provisions of
this  Indenture,  a "Legal  Holiday"  is a Saturday,  Sunday,  or a day on which
banking  institutions  are not required to be open. If a payment date is a Legal
Holiday  at a place of


                                       58
<PAGE>


payment,  payment may be made at such place on the next  succeeding  day that is
not a Legal Holiday, and no interest shall accrue for the intervening period.

          Section 10.09  GOVERNING LAW. The laws of the State of Wisconsin shall
govern this Indenture, the Securities, and any coupons appertaining thereto.

          Section  10.10 NO ADVERSE  INTERPRETATION  OF OTHER  AGREEMENTS.  This
Indenture  may  not be  used  to  interpret  another  indenture,  loan,  or debt
agreement of the Company or the Guarantor or any Affiliate of either of them. No
such indenture, loan, or debt agreement may be used to interpret this Indenture.

          Section  10.11 NO  RECOURSE  AGAINST  OTHERS.  No  director,  officer,
employee,  or  stockholder,  as such, of the Company or the Guarantor shall have
any liability  for any  obligations  of the Company or the  Guarantor  under the
Securities  or the  Indenture  or for any claim  based on, in respect  of, or by
reason of, such obligations or their creation.  Each Securityholder by accepting
a Security  waives and releases all such  liability.  The waiver and release are
part of the consideration for the issue of the Securities.

          Section  10.12  EXECUTION  IN  COUNTERPARTS.  This  Indenture  may  be
executed in any number of counterparts,  each of which shall be an original, but
such counterparts shall together constitute but one instrument.

          Section 10.13  CURRENCIES.  Except as may otherwise be provided in the
form of Securities of any particular  Series  pursuant to the provisions of this
Indenture,  all  references in this Indenture or in the Securities to "dollars,"
"$," or any similar  reference  shall be to the currency of the United States of
America.


                                   ARTICLE 11.

                       REPAYMENT AT THE OPTION OF HOLDERS

          Section 11.01 APPLICABILITY OF ARTICLE. Securities of any Series which
are repayable at the option of the Holders  thereof before their stated maturity
shall be repaid in accordance with the terms of the Securities of such Series.



           [THE REST OF THIS PAGE HAS BEEN INTENTIONALLY LEFT BLANK.]



                                       59
<PAGE>


          IN WITNESS  WHEREOF,  the parties hereto have caused this Indenture to
be duly executed,  and their respective  corporate seals, if any, to be hereunto
affixed and attested, all as of the day and year first above written.

                                          ALLIANT ENERGY RESOURCES, INC.



                                          By: /s/ Edward M. Gleason
                                              ----------------------------------
                                              Name:  Edward M. Gleason
                                              Title  Vice President - Treasuer
                                                     and Corporate Secretary



                                          ALLIANT ENERGY CORPORATION,
                                          as Guarantor



                                          By: /s/ Edward M. Gleason
                                              ----------------------------------
                                              Name:  Edward M. Gleason
                                              Title: Vice President - Treasuer
                                                     and Corporate Secretary



                                          FIRSTAR BANK, N.A.,
                                          as Trustee



                                          By: /s/ Pamela Warner
                                              ----------------------------------
                                              Name:  Pamela Warner
                                              Title: Assistant Vice President

                                          Attested by /s/ Yvonne Siira
                                                      Yvonne Sira
                                                      Assistant Secretary



                                       60




                                                                  Execution Copy



                          FIRST SUPPLEMENTAL INDENTURE


                          DATED AS OF NOVEMBER 4, 1999





                         ALLIANT ENERGY RESOURCES, INC.,
                                    Company,


                           ALLIANT ENERGY CORPORATION,
                                  As Guarantor

                                       and

                               FIRSTAR BANK, N.A.,
                                   as Trustee




                       First Supplemental Indenture to the
                                    Indenture
                          dated as of November 4, 1999


<PAGE>


          FIRST  SUPPLEMENTAL  INDENTURE,  dated as of  November  4,  1999  (the
"Supplemental  Indenture"),  among ALLIANT ENERGY  RESOURCES,  INC., a Wisconsin
corporation   (the   "Company"),   ALLIANT  ENERGY   CORPORATION,   a  Wisconsin
corporation, as guarantor (the "Guarantor"),  and FIRSTAR BANK, N.A., as Trustee
(the "Trustee").

                    RECITALS OF THE COMPANY AND THE GUARANTOR

          The Company and the Guarantor have  heretofore  executed and delivered
to the Trustee an Indenture,  dated as of November 4, 1999 (as  supplemented and
amended from time to time,  the  "Indenture"),  providing  for the issuance from
time to time of the  Company's  unsecured  unsubordinated  debentures,  notes or
other evidences of indebtedness (the "Securities"),  to be issued in one or more
series as provided in the Indenture.

          It is provided in Section 2.02 of the Indenture that the Company,  the
Guarantor  and the Trustee  may enter into  indentures  supplemental  thereto to
establish the form or terms of Securities of any series.

          The  Company  and the  Guarantor  desire to  supplement  and amend the
Indenture to allow for the issuance of  Securities  to be initially  sold within
the United States to U.S.  Persons that are Qualified  Institutional  Buyers and
Institutional  Accredited  Investors  and  issued  in the  form  of one or  more
Restricted  Global Securities  deposited with the Trustee,  as custodian for the
Depositary,  and  registered  in the name of a nominee  of the  Depositary,  and
Restricted Physical Securities.

          The Company and the  Guarantor  desire to set forth the terms and form
of a new series of  Restricted  Securities  to be known as the  Company's 7 3/8%
Senior Notes Due 2009, in an aggregate principal amount of TWO HUNDRED AND FIFTY
MILLION DOLLARS ($250,000,000) (the "7 3/8% Senior Notes" or the "Senior Notes")
and guaranteed by the Guarantor.

          The 7 3/8% Senior Notes and the  certificate of  authentication  to be
borne by the 7 3/8% Senior Notes are to be  substantially  in the form set forth
in Exhibit A hereto.

          NOW, THEREFORE, THIS SUPPLEMENTAL INDENTURE WITNESSETH:

          For and in  consideration  of the  premises  and the purchase of the 7
3/8% Senior  Notes by the Holders (as defined  herein)  thereof,  it is mutually
covenanted  and

<PAGE>

agreed as follows for the equal and ratable benefit of the Holders of the 7 3/8%
Senior Notes:

                                   ARTICLE 1.

                                   AMENDMENTS

          Section 1.01. Article 1 of the Indenture shall be amended by inserting
in Section 1.01 the following new terms with the  following  definitions  in the
appropriate alphabetic positions:

          "Additional Interest" has the meaning set forth in Section 2.06 of the
Supplemental Indenture.

          "Closing  Time"  means,  with  respect  to  the 7 3/8%  Senior  Notes,
November  9,  1999,  the  date of  initial  issuance  of the  Securities  issued
hereunder.

          "Comparable  Treasury Issue" has the meaning set forth in Section 2.07
of the Supplemental Indenture.

          "Comparable  Treasury Price" has the meaning set forth in Section 2.07
of the Supplemental Indenture.

          "Depositary" means The Depositary Trust Company of New York City.

          "Event  Date"  has  the  meaning  set  forth  in  Section  2.06 of the
Supplemental Indenture.

          "Exchange  Certificate" means a certificate  substantially in the form
of Exhibit C hereto, as such form may be revised or modified with respect to any
series of Securities  by a Board  Resolution  or indenture  supplemental  hereto
creating such series.

          "Exchange  Securities"  means Securities that are issued and exchanged
for any series of Restricted Securities in accordance with an Exchange Offer, as
provided for in a registration  rights agreement related to such series and this
Indenture, containing substantially identical terms as such series of Restricted
Securities,  except that (i) such  Exchange  Securities  shall not contain terms
with  respect  to  transfer  restrictions  and shall be issued in a  transaction
registered under the Securities Act and (ii) certain  provisions  relating to an
increase in the stated rate of interest thereon shall be eliminated.


                                       2
<PAGE>

          "Exchange  Offer"  means an offer by the  Company  to  Holders  of any
series of Restricted  Securities to exchange all of such  Restricted  Securities
for  Exchange  Securities,  as  provided  for in a related  registration  rights
agreement.

          "Exchange  Offer  Registration  Statement"  means  an  exchange  offer
registration  statement on Form S-4 (or, if applicable,  on another  appropriate
form), and all amendments and supplements to such  registration  statement,  all
exhibits thereto and all documents incorporated by reference therein.

          "IAI Letter"  means a Letter for  Institutional  Accredited  Investors
which must be signed by each such investor attached hereto as Exhibit D.

          "Independent  Investment  Banker" has the meaning set forth in Section
2.07 of the Supplemental Indenture.

          "Institutional  Accredited Investor" means an institutional accredited
investor  within  the  meaning  of  Rule  501(a)(1),  (2),  (3),  and (7) of the
Regulation D under the Securities Act.

          "Qualified   Institutional   Buyer"  or  "QIB"   means  a   "qualified
institutional buyer" as such term is defined in Rule 144A.

          "Reference  Treasury Dealer" has the meaning set forth in Section 2.07
of the Supplemental Indenture.

          "Reference  Treasury  Dealer  Quotation"  has the meaning set forth in
Section 2.07 of the Supplemental Indenture.

          "Registration  Default"  has the meaning set forth in Section  2.06 of
the Supplemental Indenture.

          "Registration  Rights  Agreement"  means,  with  respect to the 7 3/8%
Senior Notes,  the  Registration  Rights Agreement dated as of November 9, 1999,
among the Company, the Guarantor and Merrill Lynch & Co., Merrill Lynch, Pierce,
Fenner & Smith Incorporated,  Morgan Stanley & Co.  Incorporated,  Salomon Smith
Barney  Inc.,  ABN Amro  Incorporated  and  Barclays  Capital  Inc.,  as initial
purchasers.

          "Restricted  Global Security" means any Restricted  Security that is a
Global Security.

          "Restricted  Physical  Security"  means  any  Restricted  Security  in
permanent certificated form.


                                       3
<PAGE>


          "Restricted  Security"  means  any  Security  issued  pursuant  to  an
exemption from the Securities Act and bearing a Restrictive Legend.

          "Restrictive  Legend" has the meaning set forth in Section 2.19 of the
Indenture.

          "Rule 144A" means Rule 144A under the Securities Act.

          "Securities Act" means the Securities Act of 1933, as amended.

          "Shelf  Registration  Statement"  means, with respect to any series of
Restricted  Securities,  the  Shelf  Registration  Statement  specified  in  the
registration rights agreement related to such series.

          "Supplemental  Indenture" means the First Supplemental Indenture dated
as of November 9, 1999 among the Company, the Guarantor and the Trustee.

          "Transfer  Certificate" means a certificate  substantially in the form
of Exhibit B hereto and to be  attached  as Annex A to the Form of 7 3/8% Senior
Notes,  as such form may be varied or  modified  with  respect  to any series of
Securities by a Board Resolution or indenture supplemental hereto.

          "Treasury  Yield" has the  meaning  set forth in  Section  2.07 of the
Supplemental Indenture.

          "7 3/8% Senior Notes" has the meaning set forth in Section 2.01 of the
Supplemental Indenture.

          Section 1.02. Article 2 of the Indenture shall be amended by adding to
the end of Section 2.15 the following:

                    "Securities  offered and sold in reliance on Rule 144A under
          the  Securities Act may be issued in the form of one or more permanent
          Global Securities in substantially the form set forth in Exhibit A and
          containing  the legend set forth in Section 2.19 (each,  a "Restricted
          Global Security"),  deposited with the Depositary or with the Trustee,
          as custodian for the  Depositary or its nominee,  duly executed by the
          Company  and  authenticated  by the  Trustee as herein  provided.  The
          aggregate  principal  amount of a Restricted  Global Security may from
          time to time be  increased or  decreased  by  adjustments  made on the
          records  of the  Depositary  or the  Trustee,  as  custodian  for  the
          Depositary or its nominee, as hereinafter provided.


                                       4
<PAGE>


                    Restricted  Securities  issued to  Institutional  Accredited
          Investors  and  pursuant to Sections  2.08 and 2.20 in exchange for or
          upon transfer of beneficial  interests in a Restricted Global Security
          may be in the form of Restricted  Physical  Securities  containing the
          Restrictive  Legend  as set  forth  in  Section  2.19  (a  "Restricted
          Physical  Security")  until such time as the  conditions  set forth in
          Section 2.19 are  satisfied,  in  substantially  the form set forth in
          Exhibit A, as provided in Section 2.20.

                    Exchange  Securities  shall be issued in  substantially  the
          form set forth in Exhibit A, but without any Restrictive Legend."

          Section 1.03. Article 2 of the Indenture shall be amended by adding to
the end of such Article the following:

                    "Section 2.19.  RESTRICTIVE LEGENDS.  Unless and until (i) a
          Restricted   Security  is  sold   pursuant  to  an   effective   Shelf
          Registration  Statement or (ii) a Restricted Security is exchanged for
          an Exchange  Security in an Exchange  Offer  pursuant to an  effective
          Exchange  Offer  Registration  Statement,  in each case pursuant to an
          applicable  registration  rights  agreement,  each  Restricted  Global
          Security and  Restricted  Physical  Security  shall bear the following
          legend set forth below (the "Restrictive Legend") on the face thereof:

                              THE  NOTES  HAVE NOT  BEEN  REGISTERED  UNDER  THE
                    SECURITIES ACT OF 1933, AS AMENDED (THE  "SECURITIES  ACT"),
                    OR ANY STATE OR OTHER SECURITIES LAWS. NEITHER THIS NOTE NOR
                    ANY INTEREST OR PARTICIPATION HEREIN MAY BE REOFFERED, SOLD,
                    ASSIGNED,  TRANSFERRED,  PLEDGED,  ENCUMBERED  OR  OTHERWISE
                    DISPOSED  OF IN THE ABSENCE OF SUCH  REGISTRATION  OR UNLESS
                    THE  TRANSACTION  IS EXEMPT  FROM,  OR NOT  SUBJECT  TO, THE
                    REGISTRATION  REQUIREMENTS  OF THE  SECURITIES  ACT.  BY ITS
                    ACQUISITION HEREOF, THE HOLDER (1) REPRESENTS THAT (A) IT IS
                    A "QUALIFIED  INSTITUTIONAL  BUYER" (AS DEFINED IN RULE 144A
                    ("RULE  144A")  UNDER  THE  SECURITIES  ACT) OR (B) IT IS AN
                    INSTITUTIONAL  "ACCREDITED  INVESTOR"  WITHIN THE MEANING OF
                    SUBPARAGRAPHS (A)(1), (2), (3), OR (7) OF RULE 501 UNDER THE
                    SECURITIES  ACT  THAT IS  ACQUIRING  THIS  NOTE  FOR ITS OWN
                    ACCOUNT OR FOR THE ACCOUNT OF SUCH INSTITUTIONAL  ACCREDITED
                    INVESTOR FOR INVESTMENT  PURPOSES AND NOT WITH A VIEW TO, OR
                    FOR OFFER OR SALE IN CONNECTION  WITH, ANY  DISTRIBUTION  IN


                                       5
<PAGE>


                    VIOLATION  OF THE  SECURITIES  ACT, (2) AGREES NOT TO OFFER,
                    SELL OR OTHERWISE  TRANSFER  THIS NOTE PRIOR TO (X) THE DATE
                    WHICH  IS TWO  YEARS  (OR  SUCH  SHORTER  PERIOD  OF TIME AS
                    PERMITTED BY RULE 144(K) UNDER THE SECURITIES ACT) AFTER THE
                    LATER OF THE  ORIGINAL  ISSUE DATE OF THE NOTES AND THE LAST
                    DATE  ON  WHICH  ALLIANT  ENERGY  RESOURCES,   INC.  OR  ANY
                    "AFFILIATE"  (AS  DEFINED  IN RULE 144 UNDER THE  SECURITIES
                    ACT) OF ALLIANT ENERGY RESOURCES, INC. WAS THE OWNER OF THIS
                    NOTE (OR ANY  PREDECESSOR  OF THIS  NOTE) OR (Y) SUCH  LATER
                    DATE,  IF ANY,  AS MAY BE REQUIRED  BY  APPLICABLE  LAW (THE
                    "RESALE RESTRICTION TERMINATION DATE") EXCEPT (A) TO ALLIANT
                    ENERGY  RESOURCES,  INC.,  (B)  PURSUANT  TO A  REGISTRATION
                    STATEMENT  THAT  HAS  BEEN  DECLARED   EFFECTIVE  UNDER  THE
                    SECURITIES  ACT,  (C)  FOR SO  LONG  AS THE  SECURITIES  ARE
                    ELIGIBLE  FOR RESALE  PURSUANT TO RULE 144A,  TO A PERSON IT
                    REASONABLY BELIEVES IS A "QUALIFIED  INSTITUTIONAL BUYER" AS
                    DEFINED IN RULE 144A THAT  PURCHASES  FOR ITS OWN ACCOUNT OR
                    FOR THE ACCOUNT OF A QUALIFIED  INSTITUTIONAL BUYER, IN EACH
                    CASE TO WHOM NOTICE IS GIVEN THAT THE TRANSFER IS BEING MADE
                    IN   RELIANCE  ON  RULE  144A,   (D)  TO  AN   INSTITUTIONAL
                    "ACCREDITED  INVESTOR"  WITHIN THE MEANING OF  SUBPARAGRAPHS
                    (a)(1), (2), (3) OR (7) OF RULE 501 UNDER THE SECURITIES ACT
                    THAT IS  ACQUIRING  THIS NOTE FOR ITS OWN ACCOUNT OR FOR THE
                    ACCOUNT OF SUCH AN  INSTITUTIONAL  ACCREDITED  INVESTOR  FOR
                    INVESTMENT PURPOSES AND NOT WITH A VIEW TO, OR OFFER OR SALE
                    IN CONNECTION  WITH,  ANY  DISTRIBUTION  IN VIOLATION OF THE
                    SECURITIES   ACT  OR  (E)  PURSUANT  TO  ANOTHER   AVAILABLE
                    EXEMPTION  FROM  THE   REGISTRATION   REQUIREMENTS   OF  THE
                    SECURITIES ACT SUBJECT IN EACH OF THE FOREGOING CASES OF ANY
                    REQUIREMENT  OF LAW THAT THE  DISPOSITION OF ITS PROPERTY OR
                    THE PROPERTY OF SUCH INVESTOR  ACCOUNT OR ACCOUNTS BE AT ALL
                    TIMES  WITHIN ITS OR THEIR  CONTROL,  AND (3) AGREES THAT IT
                    WILL GIVE TO EACH PERSON TO WHOM THIS NOTE IS  TRANSFERRED A
                    NOTICE SUBSTANTIALLY TO THE EFFECT OF THIS LEGEND;  PROVIDED
                    THAT ALLIANT  ENERGY  RESOURCES,  INC. AND THE TRUSTEE SHALL
                    HAVE THE RIGHT PRIOR TO ANY SUCH


                                       6
<PAGE>


                    OFFER, SALE OR TRANSFER (I) PURSUANT TO CLAUSE (D) OR (E) TO
                    REQUIRE THE DELIVERY OF AN OPINION OF COUNSEL, CERTIFICATION
                    AND/OR OTHER  INFORMATION  SATISFACTORY TO EACH OF THEM, AND
                    (II) IN EACH OF THE FOREGOING  CASES,  BUT ONLY IF THIS NOTE
                    IS NOT A  GLOBAL  SECURITY  (AS  DEFINED  IN  THE  INDENTURE
                    REFERRED  TO HEREIN),  TO REQUIRE  THAT A  CERTIFICATION  OF
                    TRANSFER  IN THE FORM  APPEARING  ON THE OTHER  SIDE OF THIS
                    NOTE IS COMPLETED AND DELIVERED BY THE TRANSFEROR TO ALLIANT
                    ENERGY RESOURCES,  INC. AND THE TRUSTEE. THIS LEGEND WILL BE
                    REMOVED  UPON THE  REQUEST  OF THE  HOLDER  AFTER THE RESALE
                    RESTRICTION TERMINATION DATE.

          Section 1.04.  Article 2 of the  Indenture  shall be amended by adding
the following to the end of Section 2.08:

                    "Any Physical Security delivered in exchange for an interest
          in the  Global  Security  pursuant  to this  Section  shall  bear  the
          Restrictive  Legend  unless  such  exchange  is made on or after (i) a
          Restricted  Security  is  exchanged  for an  Exchange  Security  in an
          Exchange  Offer  under  an  effective   Exchange  Offer   Registration
          Statement, (ii) a Restricted Security is sold under an effective Shelf
          Registration  Statement  or (iii)  two  years  after  the later of the
          original  issue  date of a  Restricted  Security  and the last date on
          which the  Company or any  affiliate  of the  Company was the owner of
          such Restricted Security (the "Resale  Restriction  Termination Date")
          and except as otherwise provided in Section 2.20."

          Section 1.05.  Article 2 of the  Indenture  shall be amended by adding
the following to the end of such Article:

                    "Section 2.20. TRANSFER  PROVISIONS.  Unless and until (i) a
          Restricted  Security  is  exchanged  for an  Exchange  Security  in an
          Exchange  Offer  under  an  effective   Exchange  Offer   Registration
          Statement  or  (ii) a  Restricted  Security  is  sold  pursuant  to an
          effective Shelf Registration Statement, the following provisions shall
          apply:

                    (a) The  provisions  of this Section 2.20 shall apply to all
          transfers   involving  any  Restricted   Physical   Security  and  any
          beneficial interest in any Restricted Global Security.


                                       7
<PAGE>

                    (b) As used in  this  Section  2.20  only,  "delivery"  of a
          certificate  by a transferee or  transferor  means the delivery to the
          Registrar  by  such   transferee  or  transferor  of  the   applicable
          certificate  duly completed;  "holding"  includes both possession of a
          Physical  Security and ownership of a beneficial  interest in a Global
          Security,  as the context  requires;  "transferring" a Global Security
          means  transferring  that  portion  of  the  principal  amount  of the
          transferor's  beneficial  interest  therein  that the  transferor  has
          notified  the   Registrar   that  it  has  agreed  to  transfer;   and
          "transferring" a Physical Security means  transferring that portion of
          the  principal  amount  thereof that the  transferor  has notified the
          Registrar that it has agreed to transfer.

                    As used in this  Indenture,  "Non-Registration  Opinion  and
          Supporting  Evidence"  means a written  Opinion of Counsel  reasonably
          acceptable  to  the  Company  to  the  effect  that,  and  such  other
          certification or information as the Company may reasonably  require to
          confirm  that,  the  proposed  transfer  is being made  pursuant to an
          exemption from, or in a transaction  not subject to, the  registration
          requirements of the Securities Act.

                    (c) An  Exchange  Certificate,  if not  actually  delivered,
          shall  be  deemed  delivered  if (i) (A) the  transferor  advises  the
          Company and the Trustee in writing  that the  relevant  offer and sale
          were  made in  accordance  with the  provisions  of Rule 144A or to an
          Institutional  Accredited  Investor that is acquiring the Security for
          its own account or for the account of such an Institutional Accredited
          Investor for investment  purposes and not with a view to, or for offer
          or sale in  connection  with,  any  distribution  in  violation of the
          Securities Act (or, in the case of a transfer of a Restricted Physical
          Security,  the transferor  checks the box provided on such Security to
          that  effect)  and (B) the  transferee  advises  the  Company  and the
          Trustee in writing  that (x) it and, if  applicable,  each account for
          which it is acting in  connection  with the  relevant  transfer,  is a
          "Qualified  Institutional  Buyer,"  or  an  "Institutional  Accredited
          Investor," (y) it is aware that the transfer of Restricted  Securities
          to it is being made in reliance on the exemption  from the  provisions
          of  Section  5 of  the  Securities  Act  provided  by  Rule  144A  and
          Regulation  D and (z) prior to the  proposed  date of  transfer it has
          been given the  opportunity to obtain from the Company the information
          referred  to  in  Rule  144A(d)(4),   and  has  either  declined  such
          opportunity  or has received  such  information  (or, in the case of a
          transfer of a Restricted  Physical Security,  the transferee signs the
          certification  provided on the such Security to that effect);  or (ii)
          the   transferor   holds  the  Restricted   Global   Security  and  is
          transferring  to a transferee  that shall take delivery in the form of
          the Restricted Global Security.


                                       8
<PAGE>


                    (d) If the proposed transferor holds:

                              (1)  a  Restricted   Physical  Security  which  is
                    surrendered to the Registrar, and the proposed transferee or
                    transferor, as applicable:

                                        (A)  delivers  (or  is  deemed  to  have
                              delivered   pursuant   to  clause  (c)  above)  an
                              Exchange  Certificate and the proposed  transferee
                              requests  delivery  in the  form  of a  Restricted
                              Physical  Security,  then the Registrar  shall (x)
                              register   such  transfer  in  the  name  of  such
                              transferee  and  record  the date  thereof  in its
                              books and  records,  (y) cancel  such  surrendered
                              Restricted Physical Security and (z) deliver a new
                              Restricted  Physical  Security to such  transferee
                              duly  registered in the name of such transferee in
                              principal  amount  equal to the  principal  amount
                              being  transferred of such surrendered  Restricted
                              Physical Security; or

                                        (B)  delivers  (or  is  deemed  to  have
                              delivered   pursuant   to  clause  (c)  above)  an
                              Exchange  Certificate and the proposed  transferee
                              is or is  acting  through a  participant  with the
                              Depositary   and   requests   that  the   proposed
                              transferee  receive a  beneficial  interest in the
                              Restricted  Global  Security,  then the  Registrar
                              shall  (x)  cancel  such  surrendered   Restricted
                              Physical  Security,  (y) record an increase in the
                              principal  amount of the Global  Security equal to
                              the  principal  amount being  transferred  of such
                              surrendered  Restricted  Physical Security and (z)
                              notify  the  Depositary  in  accordance  with  the
                              procedures of the Depositary  that it has effected
                              such transfer.

                              In any of the  cases  described  in  this  Section
                    2.20(d)(1),  the Registrar shall deliver to the transferor a
                    new Restricted  Physical  Security in principal amount equal
                    to the  principal  amount  not  being  transferred  of  such
                    surrendered Restricted Physical Security, as applicable.

                              (2) a beneficial  interest in a Restricted  Global
                    Security,  and the proposed  transferee  or  transferor,  as
                    applicable:

                                        (A)  delivers  (or  is  deemed  to  have
                              delivered   pursuant   to  clause  (c)  above)  an
                              Exchange  Certificate and the proposed  transferee
                              requests  delivery  in the  form  of a  Restricted
                              Physical  Security,  then the Registrar  shall (w)
                              register   such  transfer  in  the  name  of  such
                              transferee  and  record  the date  thereof  in its


                                       9
<PAGE>


                              books and  records,  (x) record a decrease  in the
                              principal amount of the Restricted Global Security
                              in an  amount  equal  to the  beneficial  interest
                              therein  being  transferred,  (y)  deliver  a  new
                              Restricted  Physical  Security to such  transferee
                              duly  registered in the name of such transferee in
                              principal  amount  equal  to the  amount  of  such
                              decrease   and  (z)  notify  the   Depositary   in
                              accordance  with the  procedures of the Depositary
                              that it has effected such transfer; or

                                        (B)  delivers  (or  is  deemed  to  have
                              delivered   pursuant   to  clause  (c)  above)  an
                              Exchange  Certificate and the proposed  transferee
                              is or is  acting  through a  participant  with the
                              Depositary   and   requests   that  the   proposed
                              transferee  receive a  beneficial  interest in the
                              Restricted  Global  Security,  then  the  transfer
                              shall  be   effected   in   accordance   with  the
                              procedures of the Depositary therefor.

                              (e) In any case in which the Registrar is required
                    to deliver a Restricted Physical Security to a transferee or
                    transferor,  the Company shall execute,  the Guarantor shall
                    guarantee  and  the  Trustee  shall  authenticate  and  make
                    available for delivery, such Restricted Physical Security.

                              (f)  Any   transferee   entitled   to   receive  a
                    Restricted  Physical Security may request that the principal
                    amount  thereof  be  evidenced  by  one or  more  Restricted
                    Physical  Securities  in  any  authorized   denomination  or
                    denominations  and the  Registrar  shall  comply  with  such
                    request if all other transfer restrictions are satisfied.

                              (g) The  Registrar  shall effect and record,  upon
                    receipt  of a  written  request  from  the  Company  or  the
                    Guarantor  so to do, a transfer not  otherwise  permitted by
                    Section  2.20(d),  such  recording to be done in  accordance
                    with the otherwise applicable provisions of Section 2.20(d),
                    upon the furnishing by the proposed transferor or transferee
                    of a Non-Registration Opinion and Supporting Evidence.

                              (h) By its acceptance of any Security  bearing the
                    Restrictive   Legend,   each   Holder   of   such   Security
                    acknowledges  the  restrictions on transfer of such Security
                    set forth in this  Indenture and in the  Restrictive  Legend
                    and agrees  that it shall  transfer  such  Security  only as
                    provided in this Indenture. The Registrar shall not register
                    a transfer of any  Security  unless such  transfer  complies
                    with the restrictions with respect thereto set forth in this
                    Indenture.  The Registrar shall not be required to determine
                    (but may rely upon a determination made by the


                                       10
<PAGE>


                    Company) the sufficiency of any such  certifications,  legal
                    opinions or other information.

                              (i) Upon the transfer,  exchange or replacement of
                    Securities not bearing the Restrictive Legend, the Registrar
                    shall deliver  Securities  that do not bear the  Restrictive
                    Legend.  Upon  the  transfer,  exchange  or  replacement  of
                    Securities  bearing the  Restrictive  Legend,  the Registrar
                    shall  deliver  only  Securities  that bear the  Restrictive
                    Legend  unless (i) the  requested  transfer  is at least two
                    years  after  the  original  issue  date  of the  Restricted
                    Security (with respect to any Restricted Physical Security),
                    (ii)  there is  delivered  to the  Registrar  an  Opinion of
                    Counsel  reasonably  satisfactory  to the  Company  and  the
                    Trustee  to the  effect  that  neither  such  legend nor the
                    related  restrictions  on transfer  are required in order to
                    maintain  compliance  with the  provisions of the Securities
                    Act or (iii) such  Securities  are  exchanged  for  Exchange
                    Securities pursuant to an Exchange Offer.

                              Section 2.21.  CUSIP NUMBERS.  The Company may use
                    "CUSIP"  numbers (if then  generally  in use) in issuing the
                    Securities and, if so, the Trustee shall use "CUSIP" numbers
                    in notices to Holders as a convenience to Holders;  provided
                    that any such  notice  may state that no  representation  is
                    made as to the correctness of such numbers either as printed
                    on the  Securities  or as  contained  in any notice and that
                    reliance  may be  placed  only on the  other  identification
                    numbers  printed  on  the  Securities.   The  Company  shall
                    promptly  notify  the  Trustee  of any  change  in the CUSIP
                    numbers."

          Section 1.06.  Article 4 of the  Indenture  shall be amended by adding
the following paragraph immediately following the paragraph contained in Section
4.06:

                    "The  Company  will  take all  actions  necessary  to permit
          resales of any Securities  issued pursuant to Rule 144A and Regulation
          D of the Securities Act including, without limitation, furnishing upon
          request of a Holder of such  Security to such Holder and a prospective
          purchaser designated by such Holder financial and other information of
          the Company  required to be  delivered  under Rule  144A(d)(4)  of the
          Securities  Act if at the time of such  request  the  Company is not a
          reporting  company under Section 13 or Section 15(d) of the Securities
          Exchange Act of 1934, as amended."

          Section  1.07 The  Indenture  shall be  amended  by adding an  exhibit
titled  "Exhibit  A."  Exhibit A shall be the form of 7 3/8% Senior Note and the
related guarantee attached as Exhibit A hereto.


                                       11
<PAGE>


          Section  1.08.  The  Indenture  shall be  amended by adding an exhibit
titled "Exhibit B" immediately  following Exhibit A of the Indenture.  Exhibit B
shall be the form of Transfer Certificate attached as Exhibit B hereto.

          Section  1.09.  The  Indenture  shall be  amended by adding an exhibit
titled "Exhibit C" immediately  following Exhibit B of the Indenture.  Exhibit C
shall be the form of Exchange Certificate attached as Exhibit C hereto.

          Section  1.10.  The  Indenture  shall be  amended by adding an exhibit
titled "Exhibit D" immediately  following Exhibit C of the Indenture.  Exhibit D
shall be in the Form of IAI Letter attached as Exhibit D hereto.


                                   ARTICLE 2.

                     PROVISIONS FOR THE 7 3/8% SENIOR NOTES

          Section 2.01.  There shall be a series of Securities  entitled "7 3/8%
Senior Notes Due 2009" (herein  designated the "7 3/8% Senior Notes").  The form
of the 7 3/8% Senior  Notes,  the  Guarantees  issued by the  Guarantor  and the
Trustee's   certificate  of   authentication   to  be  borne  thereby  shall  be
substantially  in the forms set forth in Exhibit A hereto and shall be executed,
authenticated  and delivered in accordance  with the provisions of, and shall in
all respects be subject to, all of the terms,  conditions  and  covenants of the
Indenture and this Supplemental  Indenture,  including,  but not limited to, the
provisions  of  the  Indenture  with  respect  to  the  transfer,  exchange  and
replacement  thereof.  The aggregate principal amount of the 7 3/8% Senior Notes
that may be executed by the Company and  authenticated by the Trustee  hereunder
shall be limited to TWO HUNDRED FIFTY MILLION DOLLARS ($250,000,000);  provided,
however,  any exchanges or replacements of the Senior Notes made pursuant to the
Indenture  and  the  Supplemental  Indenture  following  the  original  issuance
thereof, .shall not be counted against this limit.

          Section  2.02.  In  accordance  with the terms and  conditions  of the
Indenture,  the Company may issue and sell the 7 3/8%  Senior  Notes  inside the
United States without  registration under the Securities Act in reliance on Rule
144A and Regulation D thereunder.

          Section 2.03.  Except as provided below, the 7 3/8% Senior Notes shall
be  represented  initially in the form of a  Restricted  Global  Security.  Each
Restricted  Global  Security shall be registered in the name of a nominee of the
Depositary  and deposited on behalf of the purchasers of the 7 3/8% Senior Notes
represented  thereby  with a  custodian


                                       12
<PAGE>


for the Depositary  for credit to the respective  accounts of the purchasers (or
to such other  accounts as they may  direct).  Except as set forth  below,  each
Restricted  Global  Security  shall  be in the form of the 7 3/8%  Senior  Notes
attached hereto is Exhibit A and may be  transferred,  in whole and not in part,
only to another nominee of the Depositary or to a successor of the Depositary or
its nominee.

          Notwithstanding   the  above,   Senior  Notes  sold  to  Institutional
Accredited Investors who are not Qualified  Institutional Buyers shall be issued
in certificated,  fully registered form (a "Restricted  Physical  Security").  A
Restricted  Physical  Security shall be subject to  restrictions  on transfer in
accordance  with the IAI Letter that such investor  shall be required to sign, a
form of which is attached hereto as Exhibit D.

          Section  2.04.  (a) Each  Restricted  Global  Security,  or any 7 3/8%
Senior  Notes that may be issued in exchange  for an  interest  in a  Restricted
Global  Security,  shall be dated as provided in Section 2.03 of the  Indenture,
shall  mature on November 9, 2009 and shall bear  interest at the rate of 7 3/8%
per annum from November 9, 1999, payable semiannually on May 9 and November 9 in
each year,  commencing with May 9, 2000,  until payment of the principal  amount
shall have been made or duly  provided for. The record dates with respect to the
interest payment dates for the 7 3/8% Senior Notes shall be May 1 and November 1
(whether or not a business  day),  respectively.  The holder of record of 7 3/8%
Senior Notes on any record date for the payment of interest shall be entitled to
receive the interest payable on such interest payment date.

          (b) Both principal of and interest on the 7 3/8% Senior Notes shall be
payable at the office of the Paying Agent in the  Milwaukee,  Wisconsin  and the
Borough  of  Manhattan,  The City of New York,  New York or at any other  office
maintained  by the  Company  or the  Guarantor,  as the  case  may be,  for such
purpose;  provided that interest may be payable, at the option of the Company or
the Guarantor,  as the case may be, by check mailed to the registered address of
the person  entitled  thereto as such address shall appear on the registry books
of the  Company.  On each  interest  payment  date the Trustee  shall pay to the
registered  holder  interest  accrued in respect  of such 7 3/8%  Senior  Notes.
Payment of  principal  on 7 3/8% Senior  Notes  shall be paid to the  registered
holder or upon his order only upon  presentation  and  surrender  for payment of
such 7 3/8%  Senior  Notes on or after the  payment  date at the  offices of the
Company or the  Guarantor,  as the case may be, in Milwaukee,  Wisconsin and the
Borough of Manhattan,  The City of New York,  New York or at any other office of
the Company or the Guarantor, as the case may be, maintained for such purpose.

          (c)  The 7  3/8%  Senior  Notes  shall  not  be  convertible  into  or
exchangeable for equity securities of the Company or the Guarantor.


                                       13
<PAGE>


          (d) The 7 3/8% Senior Notes shall not be subject to any sinking fund.

          (e) The 7 3/8% Senior  Notes shall not be included  for listing on any
national securities exchange.

          (f) The Trustee,  at its Corporate  Trust Office located at 1555 North
RiverCenter Drive, Suite 301, Milwaukee, Wisconsin 53212, shall initially act as
Paying Agent for the Senior Notes.

          Section  2.05.  (a) So  long as a  nominee  of the  Depositary  is the
registered  owner of any  Restricted  Global  Security,  such  nominee  shall be
considered  the sole owner and holder of the 7 3/8% Senior Notes  represented by
such Restricted Global Security under the Indenture, as supplemented and amended
hereby.  Except  as  herein  provided,  owners of  beneficial  interests  in any
Restricted  Global  Security  shall not be entitled to have 7 3/8% Senior  Notes
represented by the such Restricted  Global  Security  registered in their names,
shall not receive or be entitled to receive  physical  delivery of 7 3/8% Senior
Notes in  certificated  form and shall not be  considered  the owners or holders
thereof under the Indenture.

          (b) None of the Company,  the  Guarantor or the Trustee shall have any
responsibility  or  liability  for any  aspect  of the  records  relating  to or
payments made on account of  beneficial  ownership  interests in any  Restricted
Global  Security,  or for  maintaining,  supervising  or  reviewing  any records
relating to such beneficial interests.

          Section  2.06.  In the  event  that  either  (a)  the  Exchange  Offer
Registration Statement is not filed with the Commission on or prior to the 135th
calendar day  following the Closing Time,  (b) the Exchange  Offer  Registration
Statement has not been declared  effective on or prior to the 180th calendar day
following  the Closing Time,  (c) the Exchange  Offer is not  consummated  on or
prior to the 45th  calendar day  following  the  effective  date of the Exchange
Offer  Registration  Statement  or  (d)  if  required,  the  Shelf  Registration
Statement  is not  declared  effective  on or prior to the  210th  calendar  day
following  the Closing Time (each such event  referred to in clauses (a) through
(d) above,  a  "Registration  Default"),  the interest  rate borne by the Senior
Notes shall be increased  ("Additional  Interest") by one-quarter of one percent
(0.25%) per annum upon the occurrence of a Registration Default, which rate will
increase by  one-quarter  of one percent  (0.25%)  each 90-day  period that such
Additional  Interest continues to accrue under any such  circumstance,  provided
that the maximum aggregate increase in the interest rate will in no event exceed
one-half of one percent (0.5%) per annum. Following the cure of all Registration
Defaults the accrual of  Additional  Interest  will cease and the interest  rate
will revert to the original rate.


                                       14
<PAGE>


          If the Shelf Registration Statement is unusable by the Holders for any
reason after the Shelf Registration Statement has been declared effective by the
Commission,  and the aggregate  number of days in any  consecutive  twelve-month
period for which the Shelf Registration Statement shall not be usable exceeds 30
days in the aggregate,  then the interest rate borne by the Senior Notes will be
increased  by  one-quarter  of one percent  (0.25%)  per annum of the  principal
amount of the Senior  Notes for the first  90-day  period (or  portion  thereof)
beginning  on the 31st day  following  the date  that  such  Shelf  Registration
Statement  ceases to be usable,  which rate shall be increased by an  additional
one-quarter  of one  percent  (0.25%) per annum of the  principal  amount of the
Senior Notes at the beginning of the subsequent 90-day period, provided that the
maximum aggregate increase in the interest rate will in no event exceed one-half
of one percent (0.50%) per annum. Any amounts payable under this paragraph shall
also be deemed  "Additional  Interest"  for  purposes of the  Indenture  and the
Registration Rights Agreement.  Upon the Shelf Registration Statement once again
becoming usable,  the interest rate borne by the Senior Notes will be reduced to
the original  interest  rate if the Company and the  Guarantor  are otherwise in
compliance with this the Indenture and the Registration Rights Agreement at such
time.  Additional  Interest shall be computed based on the actual number of days
elapsed  in each  90-day  period in which the Shelf  Registration  Statement  is
unusable.

          The Company and the  Guarantor  shall notify the Trustee  within three
business  days after each and every date on which an event  occurs in respect of
which Additional  Interest is required to be paid (an "Event Date").  Additional
Interest shall be paid by depositing with the Trustee, in trust, for the benefit
of the  Holders of the Senior  Notes,  on or before  the  applicable  semiannual
interest payment date, immediately available funds in sums sufficient to pay the
Additional  Interest then due. The  Additional  Interest due shall be payable on
each interest  payment date to the record Holder of the Senior Notes entitled to
receive  the  interest  payment  to be  paid on such  date as set  forth  in the
Indenture.  Each obligation to pay Additional Interest shall be deemed to accrue
from and including the day following the applicable Event Date.

          Section  2.07.  The Senior Notes will be  redeemable  at the Company's
option in whole or in part at any  time,  on at least 30 days' but not more than
60 days' prior  written  notice mailed to the  registered  holders of the Senior
Notes,  at a price equal to the greater of (i) 100% of the  principal  amount of
the Senior Notes being  redeemed  and (ii) the sum of the present  values of the
principal amount of the Senior Notes to be redeemed and the remaining  scheduled
payments of interest on the Senior Notes from the redemption date to November 9,
2009 discounted from their respective  scheduled payment dates to the redemption
date semi-annually  (assuming a 360-day year consisting of twelve 30-day months)
at a  discount  rate equal to the  Treasury  Yield  plus 20 basis


                                       15
<PAGE>

points, plus accrued interest on the Senior Notes to the redemption date.

          "Treasury  Yield"  means,  with respect to any  redemption  date,  the
annual  rate  equal  to the  semi-annual  equivalent  yield to  maturity  of the
Comparable  Treasury Issue,  assuming 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.

          "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 Senior 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 the Senior Notes.

          "Comparable  Treasury  Price"  means,  with  respect  to any  date  of
redemption,  (1) the  average  of the bid and asked  prices  for the  Comparable
Treasury Issue (expressed in each case as a percentage of its principal  amount)
on the third  business day  preceding the  redemption  date, as set forth in the
daily statistical  release (or any successor  release)  published by the Federal
Reserve Bank of New York and designated "Composite 3:30 p.m. Quotations for U.S.
Government Securities" or (ii) if such release (or any successor release) is not
published or does not contain  such prices on the business day in question,  the
Reference Treasury Dealer Quotation for the redemption date.

          "Independent   Investment  Banker"  means  an  independent  investment
banking institution of national standing appointed by the Company and reasonably
acceptable to the Trustee.

          "Reference  Treasury  Dealer  Quotation"  means,  with  respect to the
Reference Treasury Dealer and redemption date, the average, as determined by the
Company,  of the  bid  and  asked  prices  for  the  Comparable  Treasury  Issue
(expressed in each case as a percentage  of its  principal  amount and quoted in
writing to the  Company by the  Reference  Treasury  Dealer at 5:00 p.m.  on the
third business day preceding the redemption date).

          "Reference  Treasury Dealer" means a primary United States  government
securities  dealer in New York City  appointed  by the  Company  and  reasonably
acceptable to the Trustee.


                                       16
<PAGE>

                                   ARTICLE 3.

                                  MISCELLANEOUS

          Section 3.01. Capitalized terms used but not defined herein shall have
the respective meanings set forth in the Indenture.

          Section 3.02. Except as supplemented and amended hereby, the Indenture
is in all respects ratified and confirmed,  and all of the terms, provisions and
conditions  thereof  shall be and  remain  in full  force and  effect,  and this
Supplemental Indenture and all its provisions shall be deemed a part thereof.

          Section  3.03. In case any  provision in this  Supplemental  Indenture
shall  be  invalid,  illegal  or  unenforceable,   the  validity,  legality  and
enforceability  of the remaining  provisions shall not in any way be affected or
impaired thereby.

          Section 3.04. If any provision of this Supplemental  Indenture limits,
qualifies or conflicts with any other provision hereof or of the Indenture which
provision is required to be included in the  Indenture by any of the  provisions
of the Trust Indenture Act, such required provision shall control.

          Section 3.05.  THIS  SUPPLEMENTAL  INDENTURE  SHALL BE GOVERNED BY AND
CONSTRUED IN ACCORDANCE  WITH THE LAWS OF THE STATE OF WISCONSIN  WITHOUT REGARD
TO THE CONFLICTS OF LAWS AND RULES OF SAID STATE.

          Section 3.06.  This  Supplemental  Indenture  has been  simultaneously
executed  in  several  counterparts,  each of  which  shall be  deemed  to be an
original,  and all such counterparts  shall together  constitute but one and the
same  instrument.  Delivery by telecopier of an executed  signature  page hereto
shall be effective as delivery of a manually executed counterpart hereof.

          Section 3.07. This Supplemental Indenture shall be deemed to have been
executed on the date of the acknowledgment thereof by the officer of the Trustee
who signed it on behalf of the Trustee.



                                       17
<PAGE>


          IN WITNESS  WHEREOF,  the Company,  the Guarantor and the Trustee have
caused their names to be signed hereto by their  respective  officers  thereunto
duly  authorized and their  respective  corporate  seals,  duly attested,  to be
hereunto affixed, all as of the day and year first above written.

                                        ALLIANT ENERGY RESOURCES, INC.
ATTEST:



By:/s/ Enrique Bacalao                  By:Edward M. Gleason
   ----------------------------------      -----------------------------------
   Name:  Enrique Bacalao                  Name:  Edward M. Gleason
   Title: Assistant Secretary              Title: Vice President - Treasurer
                                                  and Corporate Secretary


                                        ALLIANT ENERGY CORPORATION,
ATTEST:                                 as Guarantor



By: /s/ Enrique Bacalao                 By:Edward M. Gleason
   ----------------------------------      -----------------------------------
   Name:  Enrique Bacalao                  Name:  Edward M. Gleason
   Title: Assistant Secretary              Title: Vice President - Treasurer
                                                  and Corporate Secretary


                                        FIRSTAR BANK, N.A.,
                                        as Trustee



                                        By: /s/ Pamela Warner
                                           -----------------------------------
                                           Name:  Pamela Warner
                                           Title: Assistant Vice President

                                        Attested by  /s/ Yvonne Siira
                                                        Yvonne Siira
                                                        Assistant Secretary

                                       18

<PAGE>
                                                                       EXHIBIT A

                             [Form of Senior Notes]

          Unless this  certificate is presented by an authorized  representative
of The Depository  Trust Company,  a New York  corporation  ("DTC"),  to Alliant
Energy Resources,  Inc., or its agent for registration of transfer,  exchange or
payment,  and any certificate  issued is registered in the name of Cede & Co. or
to such  other  entity or in such other name as is  requested  by an  authorized
representative  of DTC (and any payment  hereon is made to Cede & Co. or to 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.

          Transfers  of this Global  Security  shall be limited to  transfers in
whole,  but not in part, to nominees of Cede & Co. or to a successor  thereof or
such successor's nominee and transfers of portions of this Global Security shall
be limited to transfers made in accordance  with the  restrictions  set forth in
Section 2.20 of the Indenture referred to in this Global Security.

          THE NOTES HAVE NOT BEEN  REGISTERED  UNDER THE SECURITIES ACT OF 1933,
AS  AMENDED  (THE  "SECURITIES  ACT"),  OR ANY STATE OR OTHER  SECURITIES  LAWS.
NEITHER THIS NOTE NOR ANY  INTEREST OR  PARTICIPATION  HEREIN MAY BE  REOFFERED,
SOLD, ASSIGNED, TRANSFERRED, PLEDGED, ENCUMBERED OR OTHERWISE DISPOSED OF IN THE
ABSENCE OF SUCH  REGISTRATION  OR UNLESS THE  TRANSACTION IS EXEMPT FROM, OR NOT
SUBJECT  TO,  THE  REGISTRATION  REQUIREMENTS  OF  THE  SECURITIES  ACT.  BY ITS
ACQUISITION  HEREOF,  THE  HOLDER  (1)  REPRESENTS  THAT (A) IT IS A  "QUALIFIED
INSTITUTIONAL  BUYER"  ("QIB") (AS DEFINED IN RULE 144A ("RULE  144A") UNDER THE
SECURITIES ACT) OR (B) IT IS AN INSTITUTIONAL  "ACCREDITED  INVESTOR" WITHIN THE
MEANING  OF  SUBPARAGRAPHS  (a)(1),  (2),  (3) OR  (7) OF  RULE  501  UNDER  THE
SECURITIES  ACT  THAT IS  ACQUIRING  THIS  NOTE FOR ITS OWN  ACCOUNT  OR FOR THE
ACCOUNT OF SUCH INSTITUTIONAL  ACCREDITED  INVESTOR FOR INVESTMENT  PURPOSES AND
NOT WITH A VIEW TO OR FOR OFFER OR SALE IN CONNECTION  WITH, ANY DISTRIBUTION IN
VIOLATION  OF THE  SECURITIES  ACT (2)  AGREES NOT TO OFFER,  SELL OR  OTHERWISE
TRANSFER  THIS NOTE  PRIOR TO (X) THE DATE  WHICH IS TWO YEARS (OR SUCH  SHORTER
PERIOD OF TIME AS PERMITTED BY RULE 144(K) UNDER THE  SECURITIES  ACT) AFTER THE
LATER OF THE ORIGINAL ISSUE DATE OF THE NOTES AND THE LAST DATE ON WHICH ALLIANT
ENERGY  RESOURCES,  INC.  OR ANY  "AFFILIATE"  (AS DEFINED IN RULE 144 UNDER THE
SECURITIES ACT) OF ALLIANT ENERGY RESOURCES,

<PAGE>

INC.  WAS THE OWNER OF THIS NOTE (OR ANY  PREDECESSOR  OF THIS NOTE) OR (Y) SUCH
LATER  DATE,  IF  ANY,  AS  MAY BE  REQUIRED  BY  APPLICABLE  LAW  (THE  "RESALE
RESTRICTION TERMINATION DATE") EXCEPT (A) TO ALLIANT ENERGY RESOURCES, INC., (B)
PURSUANT TO A REGISTRATION  STATEMENT THAT HAS BEEN DECLARED EFFECTIVE UNDER THE
SECURITIES  ACT,  (C) FOR SO LONG AS THE  SECURITIES  ARE  ELIGIBLE  FOR  RESALE
PURSUANT  TO RULE  144A,  TO A PERSON IT  REASONABLY  BELIEVES  IS A  "QUALIFIED
INSTITUTIONAL  BUYER" AS DEFINED IN RULE 144A THAT PURCHASES FOR ITS OWN ACCOUNT
OR FOR THE  ACCOUNT OF A  QUALIFIED  INSTITUTIONAL  BUYER,  IN EACH CASE TO WHOM
NOTICE IS GIVEN THAT THE TRANSFER IS BEING MADE IN RELIANCE ON RULE 144A, (D) TO
AN  INSTITUTIONAL  "ACCREDITED  INVESTOR"  WITHIN THE  MEANING OF  SUBPARAGRAPHS
(a)(1),  (2), (3) or (7) OF RULE 501 UNDER THE  SECURITIES ACT THAT IS ACQUIRING
THIS  NOTE  FOR ITS OWN  ACCOUNT  OR FOR THE  ACCOUNT  OF SUCH AN  INSTITUTIONAL
ACCREDITED INVESTOR FOR INVESTMENT PURPOSES AND NOT WITH A VIEW TO, OR FOR OFFER
OR SALE IN CONNECTION  WITH, ANY DISTRIBUTION IN VIOLATION OF THE SECURITIES ACT
OR  (E)  PURSUANT  TO  ANOTHER   AVAILABLE   EXEMPTION  FROM  THE   REGISTRATION
REQUIREMENTS OF THE SECURITIES ACT SUBJECT IN EACH OF THE FOREGOING CASES OF ANY
REQUIREMENT OF LAW THAT THE  DISPOSITION OF ITS PROPERTY OR THE PROPERTY OF SUCH
INVESTOR  ACCOUNT OR ACCOUNTS BE AT ALL TIMES WITHIN ITS OR THEIR  CONTROL,  AND
(3) AGREES THAT IT WILL GIVE TO EACH PERSON TO WHOM THIS NOTE IS  TRANSFERRED  A
NOTICE SUBSTANTIALLY TO THE EFFECT OF THIS LEGEND;  PROVIDED THAT ALLIANT ENERGY
RESOURCES,  INC.  AND THE TRUSTEE  SHALL HAVE THE RIGHT PRIOR TO ANY SUCH OFFER,
SALE OR TRANSFER (I) PURSUANT TO CLAUSE (D) OR (E) TO REQUIRE THE DELIVERY OF AN
OPINION OF COUNSEL,  CERTIFICATION AND/OR OTHER INFORMATION SATISFACTORY TO EACH
OF THEM, AND (II) IN EACH OF THE FOREGOING CASES, BUT ONLY IF THIS NOTE IS NOT A
GLOBAL  SECURITY (AS DEFINED IN THE  INDENTURE  REFERRED TO HEREIN),  TO REQUIRE
THAT A CERTIFICATION OF TRANSFER IN THE FORM APPEARING ON THE OTHER SIDE OF THIS
NOTE IS COMPLETED AND DELIVERED BY THE TRANSFEROR TO ALLIANT  ENERGY  RESOURCES,
INC. AND THE TRUSTEE. THIS LEGEND WILL BE REMOVED UPON THE REQUEST OF THE HOLDER
AFTER THE RESALE RESTRICTION TERMINATION DATE.


                                       2
<PAGE>

                         ALLIANT ENERGY RESOURCES, INC.
                          7 3/8% SENIOR NOTES DUE 2009

CUSIP No. 018803AA4
$250,000,000

Global Note

          Alliant  Energy  Resources,  Inc., a  corporation  duly  organized and
existing  under the laws of the State of Wisconsin  (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 TWO HUNDRED FIFTY MILLION  DOLLARS ($  250,000,000) on November
9, 2009, at the office or agency of the Company  referred to below, in such coin
or currency  of the United  States of America as at the time of payment is legal
tender for the payment of public and private debts,  and to pay interest thereon
in like coin or currency from November 9, 1999, or from the most recent interest
payment date on which interest has been paid or duly provided for, semi-annually
in arrears on May 9 and November 9 in each year,  commencing May 9, 2000, at the
rate of 7 3/8% per annum,  until the principal  hereof is paid or made available
for  payment,  and (to the extent  lawful) to pay  interest at the same rate per
annum on any overdue  principal  and premium and on any overdue  installment  of
interest until paid.

          Interest so payable,  and punctually paid or duly provided for, on any
Interest payment date, as provided in the Indenture, shall be paid to the person
in whose name this  Senior  Note (or one or more  predecessor  Senior  Notes) is
registered at the close of business on the record date for such interest,  which
shall be May 1 or  November 1 (whether or not a business  day),  as the case may
be,  next  preceding  such  Interest  payment  date.  Any such  interest  not so
punctually  paid or duly provided for will forthwith  cease to be payable to the
person in whose name this Senior Note is  registered on such record date and may
either be paid to the person in whose name this Senior Note is registered at the
close of business on a record date for the payment of such defaulted interest to
be fixed by the Trustee,  notice  whereof  shall be given to the person in whose
name this Senior Note is registered  not less than ten days prior to such record
date,  or be paid at any time in any  other  lawful  manner,  all as more  fully
provided in the Indenture.

          This Senior Note is a "book-entry" security and is being registered in
the name of Cede & Co. as nominee of The  Depository  Trust Company  ("DTC"),  a
clearing agency. Subject to the terms of the Indenture,  dated as of November 4,
1999 (as supplemented by the First  Supplemental  Indenture dated as of November
4, 1999 and as  supplemented  and amended from time to time,  the  "Indenture"),
among the Company,


                                       3
<PAGE>

Alliant Energy Corporation (the "Guarantor"), and Firstar Bank, N.A., as trustee
(the "Trustee"),  and except as provided therein,  this Senior Note will be held
by a clearing  agency or its nominee,  and beneficial  interests will be held by
beneficial  owners through the book-entry  facilities of such clearing agency or
its  nominee in minimum  denominations  of $1,000  and  increments  of $1,000 in
excess thereof.

          The  statements  set  forth in the  restrictive  legend  above  are an
integral  part of the terms of this  Senior Note and by  acceptance  hereof each
holder of this  Senior  Note  agrees to be subject to and bound by the terms and
provisions set forth in such legend.

          The Trustee will make payments of principal of and interest on (except
as otherwise  provided  below) this Senior Note by wire transfer of  immediately
available  funds.  Notwithstanding  the above,  the final payment on this Senior
Note  will be made  after due  notice by the  Trustee  of the  pendency  of such
payment  and only upon  presentation  and  surrender  of this Senior Note at its
principal  corporate trust office or such other offices or agencies appointed by
the Trustee for that purpose and such other locations provided in the Indenture.

          Payments of  principal of (and  premium,  if any) and interest on this
Senior  Note  will  be made at the  offices  or  agency  of the  Company  or the
Guarantor,  as the  case  may be,  maintained  for that  purpose  in  Milwaukee,
Wisconsin and the Borough of Manhattan,  The City of New York,  New York in such
coin or  currency  of the United  States of America as at the time of payment is
legal tender for payments of public and private debts;  provided,  however, that
at the option of the Company or the  Guarantor,  as the case may be,  payment of
interest  may be made by check  mailed to the  address  of the  person  entitled
thereto as such address shall appear in the register of the Company.

          This Senior Note is one of a duly  authorized  issue of  Securities of
the Company,  designated 7 3/8% Senior Notes due 2009 (the "7 3/8% Senior Notes"
or the  "Senior  Notes"),  limited  in  aggregate  principal  amount at any time
outstanding  to TWO HUNDRED FIFTY MILLION  DOLLARS  ($250,000,000)  which may be
issued under the First Supplemental  Indenture.  Reference is hereby made to the
Indenture,  the First  Supplemental  Indenture and all  indentures  supplemental
thereto for a statement of the respective rights, limitations of rights, duties,
obligations and immunities thereunder of the Company, the Guarantor, the Trustee
and the Holders of the Senior  Notes,  and the terms upon which the Senior Notes
are, and are to be,  authenticated and delivered.  All terms used in this Senior
Note that are defined in the Indenture shall have the meanings  assigned to them
in the Indenture.

          The Holder of this  Senior  Note is  entitled  to the  benefits of the
Registration  Rights Agreement,  dated as of November 9, 1999 (the "Registration
Rights


                                       4
<PAGE>

Agreement"),  among the Company,  the Guarantor and the initial purchasers named
therein (the  "Initial  Purchasers").  In the event that (i) the Company and the
Guarantor fails to file an Exchange Offer Registration Statement with respect to
the Senior Notes with the Securities and Exchange  Commission (the "Commission")
on or prior to the 135th  calendar  day  following  the Closing  Time,  (ii) the
Commission does not declare such Exchange Offer Registration Statement effective
on or prior to the 180th  calendar day  following  the Closing  Time,  (iii) the
Exchange Offer is not consummated on or prior to the 45th calendar day following
the  effective  date of the  Exchange  Offer  Registration  Statement or (iv) if
required, a Shelf Registration Statement with respect to the Senior Notes is not
declared  effective  by the  Commission  on or prior to the 210th  calendar  day
following  the Closing  Time (each,  a  "Registration  Default"),  the per annum
interest rate borne by the Senior Notes shall be increased by one-quarter of one
percent (0.25%) per annum for the first 90-day period following the Registration
Default.  The  interest  rate borne by the Senior  Notes will be increased by an
additional  one-quarter  of one  percent  (0.25%)  per annum for the  subsequent
90-day period (or portion  thereof) during which any such  Registration  Default
continues  up to a maximum  aggregate  increase in the annual  interest  rate of
one-half  of  one  percent  (0.50%)  per  annum.   Following  the  cure  of  all
Registration  Defaults,  the  interest  rate borne by the Senior  Notes shall be
reduced to the original  interest rate borne by the Senior  Notes.  If the Shelf
Registration Statement is unusable by the Holders for any reason after the Shelf
Registration  Statement has been declared  effective by the Commission,  and the
aggregate  number of days in any consecutive  twelve-month  period for which the
Shelf  Registration  is  unusable  exceeds  30 days in the  aggregate,  then the
interest rate borne by the Senior Notes will be increased by  one-quarter of one
percent  (0.25%) per annum of the  principal  amount of the Senior Notes for the
first 90-day period (or a portion thereof)  beginning the 31st day following the
date that such Shelf  Registration  Statement  ceases to be  usable,  which rate
shall be increased by an additional one-quarter of one percent (0.25%) per annum
of the  principal  amount of Senior  Notes at the  beginning  of the  subsequent
90-day period, provided that the maximum aggregate increase in the interest rate
will in no event exceed one-half of one percent  (0.50%) per annum.  All accrued
additional  interest  shall be paid to Holders by the Company in the same manner
and at the same time as interest is paid  pursuant to the  Indenture.  All terms
used in this Senior Note that are defined in the  Registration  Rights Agreement
shall have the meanings assigned to them in the Registration Rights Agreement.

          Each purchaser of Senior Notes,  by its acquisition  thereof,  will be
deemed  to  have  acknowledged,  represented  to and  agreed  with  the  Initial
Purchasers, the Company and the Guarantor as follows:


                                       5
<PAGE>

                    (1) Such purchaser  understands  and  acknowledges  that the
          Senior Notes have not been registered  under the Securities Act or any
          other  applicable  securities  laws,  are being  offered for resale in
          transactions  not requiring  registration  under the Securities Act or
          any other  securities laws including sales pursuant to Rule 144A under
          the  Securities  Act,  and  may  not be  offered,  sold  or  otherwise
          transferred except in compliance with the registration requirements of
          the Securities Act or any other applicable securities law, or pursuant
          to an exemption therefrom or in a transaction not subject thereto, and
          in each case in compliance  with the conditions for transfer set forth
          in paragraph (4) below.

                    (2) Such purchaser is not an "affiliate" (as defined in Rule
          144 under the Securities Act) of the Company and it is either:

                              (a) a QIB and is aware  that  any  sale of  Senior
                    Notes to it will be made in  reliance  on Rule 144A and such
                    acquisition  will be for its own  account or for the account
                    of  another  QIB with  respect  to which it  exercises  sole
                    investment  discretion  and to whom it has given notice that
                    the Senior Notes are being sold in reliance on Rule 144A; or

                              (b) an Institutional  Accredited  Investor and, if
                    the  Senior  Notes  are to be  purchased  for  one  or  more
                    accounts  ("investor  accounts")  for  which it is acting as
                    fiduciary  or  agent,  each  such  investor  account  is  an
                    Institutional  Accredited  Investor on a like basis;  in the
                    normal  course of its  business,  it invests in or purchases
                    securities  similar to the Senior  Notes and such  purchaser
                    has such  knowledge and experience in financial and business
                    matters  that it is  capable  of  evaluating  the merits and
                    risks of purchasing  any of the Senior Notes and it is aware
                    that it (or any such  investor  account)  may be required to
                    bear the economic  risk of an investment in the Senior Notes
                    for an  indefinite  period of time and it (or such  investor
                    account) is able to bear such risk for an indefinite  period
                    and  such   purchaser   has   agreed  to  deliver  a  letter
                    substantially  in  the  form  of  Exhibit  D  to  the  First
                    Supplemental Indenture to the Company.

                    (3) Such  purchaser  acknowledges  that none of the Company,
          the Guarantor or the Initial  Purchasers,  or any person  representing
          the Company,  the  Guarantor or the Initial  Purchasers,  has made any
          representation to it with respect to the Company, the Guarantor or the
          offering  or sale of any  Senior  Notes  other  than  the  information
          contained in the Offering  Memorandum,  which has been delivered to it
          and upon which  such  purchaser  is  relying in making its  investment
          decision with respect to the Senior Notes. Accordingly, such purchaser
          acknowledges that no representation or warranty is made by the Initial
          Purchasers


                                       6
<PAGE>


          as to the accuracy or completeness  of such materials.  Such purchaser
          has had access to such financial and other information  concerning the
          Company, the Guarantor and the Senior Notes (and the Guarantees) as it
          has deemed  necessary in connection  with its decision to purchase any
          of the Senior Notes,  including an opportunity to ask questions of and
          request information from the Initial  Purchasers,  the Company and the
          Guarantor.

                    (4) Such  purchaser is  purchasing  the Senior Notes for its
          own  account,  or for one or more  investor  accounts  for which it is
          acting as a fiduciary or agent, in each case for  investment,  and not
          with a  view  to,  or for  offer  or  sale  in  connection  with,  any
          distribution  thereof in violation of the Securities  Act,  subject to
          any  requirement  of law that the  disposition  of its property or the
          property of such  investor  account or accounts be at all times within
          its or their  control  and  subject to its or their  ability to resell
          such  Senior  Notes  pursuant  to  Rule  144A  or any  exemption  from
          registration  available  under the  Securities  Act or  pursuant  to a
          registration  statement  which has been declared  effective  under the
          Securities Act. Such purchaser  agrees on its own behalf and on behalf
          of any investor  account for which it is purchasing  the Senior Notes,
          and each  subsequent  holder  of the  Senior  Notes by its  acceptance
          thereof will be deemed to agree, to offer, sell or otherwise  transfer
          the  Senior  Notes  prior to (x) the date  which is two years (or such
          shorter  period  of  time  as  permitted  by  Rule  144(k)  under  the
          Securities  Act) after the later of the date of original  issue of the
          Senior  Notes  and the last date on which  the  Company  or any of its
          "affiliates" (as defined in Rule 144 under the Securities Act) was the
          owner of the Senior  Notes (or any  predecessor  thereto)  or (y) such
          later date, if any, as may be required by applicable  law (the "Resale
          Restriction  Termination Date"), only (a) to the Company, (b) pursuant
          to a registration  statement  which has been declared  effective under
          the  Securities  Act, (c) for so long as the Senior Notes are eligible
          for resale pursuant to Rule 144A to a person it reasonably believes is
          a QIB that  purchases for its own account or for the account of a QIB,
          in each case to whom  notice is given that the  transfer is being made
          in reliance on Rule 144A, (d) to an Institutional  Accredited Investor
          that is  acquiring  the  Senior  Notes for its own  account or for the
          account of such an  Institutional  Accredited  Investor for investment
          purposes  and not with a view to, or for  offer or sale in  connection
          with,  any  distribution  in  violation of the  Securities  Act or (e)
          pursuant  to any  other  available  exemption  from  the  registration
          requirements of the Securities  Act,  subject in each of the foregoing
          cases to any  requirement of law that the  disposition of its property
          or the property of such  investor  account or accounts be at all times
          within its or their  control  and to  compliance  with any  applicable
          state or other  securities  laws.  If any  resale or  transfer  of the
          Senior Notes is proposed to be made pursuant to clause (d) above


                                       7
<PAGE>

          prior to the Resale Restriction Termination Date, the transferor shall
          deliver  a letter  from the  transferee  substantially  in the form of
          Exhibit D to the First  Supplemental  Indenture to the Company and the
          Trustee.   The  foregoing   restrictions  on  resale  will  not  apply
          subsequent to the Resale Restriction  Termination Date. Each purchaser
          of Senior Notes  acknowledges that the Company,  the Guarantor and the
          Trustee  reserve the right prior to any offer,  sale or other transfer
          of Senior  Notes  prior to the  Resale  Restriction  Termination  Date
          pursuant to clauses (d) or (e),  above,  to require the delivery of an
          opinion  of   counsel,   certifications   and/or   other   information
          satisfactory  to them and the Trustee.  Each purchaser of Senior Notes
          acknowledges that each Senior Note will contain a legend substantially
          in the form on the face of this Senior Note unless otherwise agreed by
          the Company, the Guarantor and the Trustee.

                    (5)  Such  purchaser  acknowledges  that  the  Company,  the
          Guarantor,  the Initial  Purchasers,  the Trustee and others will rely
          upon  the  truth  and  accuracy  of  the  foregoing   acknowledgments,
          representations   and  agreements  and  agree  that,  if  any  of  the
          acknowledgments,  representations, warranties and agreements deemed to
          have been made by its purchase of the notes are no longer accurate, it
          shall  promptly  notify the Initial  Purchasers.  If such purchaser is
          acquiring  any notes as a fiduciary or agent for one or more  investor
          accounts,  it represents that it has sole  investment  discretion with
          respect  to each  such  account  and it has  full  power  to make  the
          foregoing acknowledgments, representations and agreements on behalf of
          each such account and that each such  investor  account is eligible to
          purchase the notes.

                    (6)  Such  purchaser  acknowledges  that  the  Trustee,  the
          transfer  agent and the  registrar  will not be required to accept for
          registration  of  transfer  any  notes  acquired  by it,  except  upon
          presentation  of evidence  satisfactory to the Company and the Trustee
          that the restrictions set forth above have been complied with.

                    (7)  Such   purchaser   acknowledges   that  the   foregoing
          restrictions  apply to holders of  beneficial  interests in the Senior
          Notes, as well as the holders of the Senior Notes.

          The  Senior  Notes  do  not  have  the  benefit  of any  sinking  fund
obligations  and shall not be  repayable  at the option of the  Holder  prior to
maturity.

          The Senior Notes may be redeemed at the Company's  option, in whole or
in part,  at any time on at least 30 days',  but not more  than 60 days',  prior
written notice mailed to the registered  holders of the Senior Notes, at a price
equal to the  greater of (a) 100% of the  principal  amount of the Senior  Notes
being redeemed and (b) the sum of the


                                       8
<PAGE>


present  values of the  principal  amount of the Senior Notes to be redeemed and
the  remaining  scheduled  payments  of  interest  on the Senior  Notes from the
redemption date to November 9, 2009 discounted from their  respective  scheduled
payment  dates to the  redemption  date  semi-annually  (assuming a 360-day year
consisting of twelve 30-day  months) at a discount rate equal to the  equivalent
yield to maturity of a comparable  treasury security plus 20 basis points,  plus
accrued interest on the Senior Notes to the redemption date.

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

          The Indenture  contains  provisions  for defeasance at any time of (a)
the entire  indebtedness  of the Company (and the  Guarantor)  under this Senior
Note and (b) certain  restrictive  covenants and the related defaults and Events
of Default  applicable  to the Company  and the  Guarantor,  in each case,  upon
compliance by the Company and the Guarantor with certain conditions set forth in
the Indenture, which provisions apply to this Senior Note.

          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  Guarantor  and the rights of the  Holders of the Senior  Notes
under the  Indenture at any time by the Company,  the  Guarantor and the Trustee
with the consent of the Holders of a majority in aggregate  principal  amount of
the Senior Notes at the time outstanding. The Indenture also contains provisions
permitting the Holders of specified percentages in aggregate principal amount of
the Senior Notes at the time outstanding, on behalf of the Holders of all Senior
Notes,  to waive  compliance  by the  Company  and the  Guarantor  with  certain
provisions of the  Indenture  and certain past Defaults  under the Indenture and
their consequences. Any such consent or waiver by the Holder of this Senior Note
shall be conclusive  and binding upon such Holder and upon all future Holders of
this Senior Note and of any Senior Note issued upon the registration of transfer
thereof or in exchange  herefor or in lieu  hereof,  whether or not  notation of
such consent or waiver is made upon this Senior Note.

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


                                       9
<PAGE>


          As provided in the  Indenture  and subject to certain  limitations  on
transfer of this Senior Note by DTC or its nominee,  the transfer of this Senior
Note is  registrable  by the  Registrar,  upon surrender of this Senior Note for
registration  of  transfer  at  the  office  or  agency  of the  Company  or the
Guarantor,  as the case may be,  in  Milwaukee,  Wisconsin  and the  Borough  of
Manhattan,  The City of New York, New York,  duly endorsed by, or accompanied by
the written  instrument of transfer  attached hereto duly executed by the Holder
hereof or his attorney duly authorized in writing, and thereupon one or more new
Senior Notes, of authorized  denominations and for the same aggregate  principal
amount, shall be issued to the designated transferee or transferees.

          The Senior Notes are issuable  only in fully  registered  form without
coupons  in  denominations  of $1,000  and any  integral  multiple  thereof.  As
provided in the Indenture and subject to certain  limitations therein set forth,
the Senior  Notes are  exchangeable  for a like  aggregate  principal  amount of
Senior Notes of different  authorized  denomination,  as requested by the Holder
surrendering the same.

          No service charge shall be made for any such  registration of transfer
or exchange of Senior  Notes,  but the  Company  and the  Guarantor  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  Senior  Note for  registration  of
transfer, the Company, the Guarantor,  the Trustee and any agent of the Company,
the Guarantor or the Trustee may treat the person in whose name this Senior Note
is registered  as the owner hereof for all purposes,  whether or not this Senior
Note be overdue, and none of the Company, the Guarantor, the Trustee or any such
agent shall be affected by notice to the contrary.

          Interest  on this  Senior  Note  shall be  computed  on the basis of a
360-day year of twelve 30-day months.

          The  Company  shall  furnish to any Holder of record of Senior  Notes,
upon written request and without charge, a copy of the Indenture.

          The  Indenture  and this  Senior  Note each shall be  governed  by and
construed in accordance  with the laws of the State of Wisconsin  without regard
to principles of conflicts of law.

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


                                       10
<PAGE>


          In Witness  Whereof,  Alliant Energy  Resources,  Inc. has caused this
Senior Note to be signed in its corporate name by the facsimile signature of two
of its  officers  thereonto  duly  authorized  and has caused a facsimile of its
corporate seal to be affixed hereto or imprinted or otherwise reproduced hereon.

                                        ALLIANT ENERGY RESOURCES, INC.
ATTEST:


By:_________________________________    By:___________________________________
    Name:                                   Name:
    Title:                                  Title:



                                       11
<PAGE>

          FOR VALUE RECEIVED, the Guarantor,  hereby unconditionally  guarantees
to the Holder of the Security upon which this  Guarantee is endorsed the due and
punctual  payment of the  principal,  of  premium,  if any,  or interest on said
Security,  when and as the same  shall be become  due and  payable,  whether  at
maturity,  upon  redemption or otherwise,  according to the terms thereof and of
the Indenture referred to therein.

          The Guarantor agrees to determine,  at least one business day prior to
the date upon which a payment of principal,  of premium,  if any, or interest on
said Security is due and payable, whether the Company has available the funds to
make such  payment as the same  shall  become  due and  payable.  In case of the
failure of the Company punctually to pay any such principal, premium, if any, or
interest,  the  Guarantor  hereby  agrees to cause any such  payment  to be made
punctually  when  and as the same  shall  become  due and  payable,  whether  at
maturity, upon redemption or otherwise,  and as if such payment were made by the
Company.

          The Guarantor  hereby agrees that its  obligations  hereunder shall be
unconditional,   irrevocable   and  absolute,   irrespective  of  the  validity,
regularity or enforceability of said Security or said Indenture,  the absence of
any  action to  enforce  the same,  any  waiver or consent by the Holder of said
Security with respect to any  provisions  thereof,  the recovery of any judgment
against the Company or any action to enforce the same or any other  circumstance
which might otherwise  constitute a legal or equitable discharge or defense of a
guarantor.  The  Guarantor  hereby  waives  diligence,  presentment,  demand  of
payment,  filing of claims with a court in the event of merger or  bankruptcy of
the  Company,  any right to require a  proceeding  first  against  the  Company,
protest  or notice  with  respect to said  Security  or  indebtedness  evidenced
thereby,  and all demands  whatsoever and covenants that this Guarantee will not
be discharged  except by complete  performance of the  obligations  contained in
said Security and in this Guarantee.

          The Guarantor  shall be subrogated to all rights of the Holder of said
Security  against the Company in respect to any  amounts  paid by the  Guarantor
pursuant  to the  provisions  of this  Guarantee;  provided,  however,  that the
Guarantor shall not, without the consent of the Holders of all of the Securities
then outstanding,  be entitled to enforce or to receive any payments arising out
of or based upon such right of  subrogation  until the principal of and premium,
if any, and interest on all  Securities  shall have been paid in full or payment
thereof shall have been provided for in accordance with said Indenture.

          Notwithstanding   anything  to  the  contrary   contained  herein,  if
following any payment of principal or interest by the Company on the  Securities
to the Holders of


                                       12
<PAGE>


the  Securities  it is  determined  by a final  decision of a court of competent
jurisdiction  that such  payment  shall be avoided  by a trustee  in  bankruptcy
(including any debtor-in-possession) as a preference under 11 U.S.C. Section 547
and such payment is paid by such Holder to such trustee in bankruptcy,  then and
to the extent of such repayment the obligations of the Guarantor hereunder shall
remain in full force and effect.

          This Guarantee shall not be valid or become obligatory for any purpose
with  respect  to a  Security  until a  certificate  of  authentication  on such
Security shall have been signed by the Trustee (or the authenticating agent).

          This  Guarantee  shall  be  governed  by  the  laws  of the  State  of
Wisconsin.

          IN  WITNESS  WHEREOF,  ALLIANT  ENERGY  CORPORATION  has  caused  this
Guarantee  to be signed in its  corporate  name by the  signature  of two of its
officers  thereunto  duly  authorized  and has caused its  corporate  seal to be
affixed hereto or imprinted or otherwise reproduced hereon.


                                        ALLIANT ENERGY CORPORATION,
                                        as Guarantor
ATTEST:


By:_________________________________    By:__________________________________
    Name:                                   Name:
    Title:                                  Title:


                                       13
<PAGE>

                      TRUSTEE CERTIFICATE OF AUTHENTICATION

          This  is  one of  the  Senior  Notes  described  in  the  within-named
Indenture.

                                          FIRSTAR BANK, N.A.,
                                          as Trustee



                                          By:________________________________
                                              Name:
                                              Title:


                                       14
<PAGE>

                                                                       EXHIBIT B
                                     Annex A

                         [FORM OF TRANSFER CERTIFICATE]



Alliant Energy Resources, Inc. (the "Company")
Alliant Energy Corporation, as Guarantor (the "Guarantor")
Firstar Bank, N.A., as Trustee (the "Trustee")

Re: 7 3/8% Senior Notes Due 2009


          Reference  is hereby  made to the  Indenture,  dated as of November 4,
1999 (as supplemented by the First  Supplemental  Indenture dated as of November
4, 1999, and as  supplemented  and amended from time to time, the  "Indenture"),
between the Company,  the Guarantor and the Trustee.  Capitalized terms used but
not defined herein shall have the meanings given to them in the Indenture. Other
terms shall have the meanings given to them in Rule 144A ("Rule 144A") under the
Securities Act of 1933, as amended (the "Securities Act").

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

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

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

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

          (Print or type name and address of transferee, including ZIP code)

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

          (Taxpayer Identification Number of transferee)

          the within Senior Note and all rights  thereunder,  hereby irrevocably
constituting and appointing  ____________________  attorney-in-fact  to transfer
said Senior Note on the books of the Company with full power of  substitution in
the premises.

          In connection with any transfer of this Senior Note occurring prior to
the date that is the  earlier  of the date of an  effective  Shelf  Registration
Statement or the

<PAGE>

Resale  Restriction  Termination  Date,  the  undersigned  confirms that without
utilizing any general solicitation or general advertising:

          [Check One]

          ____      Such Senior Note is being transferred in accordance with (i)
                    the transfer restrictions set forth in the Indenture and the
                    Senior  Notes (and such  transfer is subject to the right of
                    the   Company   and  the   Trustee  to  require   additional
                    information   from  the  undersigned,   including,   without
                    limitation,  an opinion of counsel) and (ii) Rule 144A under
                    the  Securities  Act to a  transferee  that  the  transferor
                    reasonably  believes is purchasing  the Senior Notes for its
                    own  account  or  an  account  with  respect  to  which  the
                    transferee  exercises sole  investment  discretion,  and the
                    transferee   and   any   such   account   is  a   "Qualified
                    Institutional  Buyer"  within the meaning of Rule 144A or an
                    Institutional Accredited Investor within the meaning of Rule
                    501(a)(1),  (2), (3) or (7) under the Securities Act that is
                    acquiring  the  Senior  Note for its own  account or for the
                    account of such an investor for investment  purposes and not
                    with a view to, or for offer or sale in connection with, any
                    distribution  in violation of the  Securities  Act, and such
                    transferee  is aware  that  the sale to it is being  made in
                    reliance upon Rule 144A or Regulation D, as the case may be,
                    in each case in a transaction  meeting the  requirements  of
                    Rule  144A or  Regulation  D,  as the  case  may be,  and in
                    accordance with any applicable  securities laws of any state
                    of the United States or any other jurisdiction.

          or

          ____      Such  Senior  Note  is  being  transferred  pursuant  to  an
                    exemption  from   registration   under  the  Securities  Act
                    provided by Rule 144 thereunder upon provision of an opinion
                    of counsel and such other evidence acceptable to the Company
                    that such offer,  sale,  pledge or transfer is in compliance
                    with the Securities Act and other  applicable  laws, in each
                    case in a form satisfactory to the Company.

          or

          ____      Such Senior Note is being transferred in a transaction other
                    than in accordance  with the above upon provision of a legal
                    opinion and


                                       2
<PAGE>

                    other  evidence   requested  by  the  Company  in  form  and
                    substance  satisfactory  to the Company,  to the effect that
                    the proposed transfer is being made pursuant to an exemption
                    from, or in a transaction  not subject to, the  registration
                    requirements of the Securities Act.

          If none of the  foregoing  boxes  is  checked,  the  Trustee  or other
Registrar shall not be obligated to register this Senior Note in the name of any
person other than the Holder hereof unless and until the  conditions to any such
transfer of  registration  set forth herein and in Section 2.20 of the Indenture
shall have been satisfied.

          This certificate and the statements contained herein are made for your
benefit  and  the  benefit  of the  Initial  Purchaser  named  in  the  Offering
Memorandum  distributed by the Company and the Guarantor in connection  with the
initial sale of the Senior Notes.

          You are  entitled  to  rely  upon  this  letter  and  are  irrevocably
authorized  to produce this letter or a copy hereof to any  interested  party in
any  administrative  or legal proceeding or official inquiry with respect to the
matters covered hereby.

                                      [Insert Name of Transferor]

                                      By:______________________________________
                                             Name:
                                             Title:

                                      Dated: ____________________



(N.B.: The signature to this assignment must correspond with the name as written
upon the face of the  within-mentioned  instrument in every particular,  without
alteration or any change whatsoever)


       TO BE COMPLETED BY PURCHASER IF THE FIRST OPTION ABOVE IS CHECKED.

          Signatures must be guaranteed by an "eligible  guarantor  institution"
meeting the requirements of the Registrar, which requirements include membership
or participation in the Security  Transfer Agent Medallion  Program ("STAMP") or
such


                                      3
<PAGE>


other  "signature  guarantee  program" as may be  determined by the Registrar in
addition  to,  or in  substitution  for,  STAMP,  all  in  accordance  with  the
Securities Exchange Act of 1934, as amended.

          The  undersigned  represents  and warrants that it is purchasing  this
Senior Note for its own account or an account with respect to which it exercises
sole  investment  discretion  and that it and any such  account is a  "qualified
institutional buyer" within the meaning of Rule 144A under the Securities Act or
an "institutional  accredited investor" within the meaning of Rule 501 under the
Securities Act and to the extent the  undersigned is a "qualified  institutional
buyer," the  undersigned  acknowledges  that it has  received  such  information
regarding  the  Company  and the  Guarantor  as the  undersigned  has  requested
pursuant to Rule 144A or has determined not to request such information and that
it is aware that the  transferor  is relying  upon the  undersigned's  foregoing
representations  in order to claim the exemption from  registration  provided by
Rule 144A.

                                      Date:___________________________

                  (NOTICE:  To be executed by an executive officer)





                              PAYMENT INSTRUCTIONS

          The assignee should include the following for purposes of payment:

          Payment shall be made, by wire transfer or otherwise,  in  immediately
available    funds,    to    _____________________,    for   the    account   of
___________________,  account  number  ___________,  or, if mailed,  by check to
_____________________.  Applicable  reports and  statements  should be mailed to
_____________________.  This  information is provided by  _____________________,
the assignee named above, or _____________________, as its agent.


                                       4
<PAGE>

                                                                       EXHIBIT C

                          FORM OF EXCHANGE CERTIFICATE



Alliant Energy Resources, Inc. (the "Company")
Alliant Energy Corporation, as guarantor (the "Guarantor")
Firstar Bank, N.A., as Trustee (the "Trustee")

RE:  Alliant  Energy  Resources,  Inc. 7 3/8% Senior Notes Due 2009 (the "Senior
     Notes")



Ladies and Gentlemen:

     Reference is hereby made to the Indenture, dated as of November 4, 1999 (as
supplemented  by the First  Supplemental  Indenture dated as of November 4, 1999
and as further  supplemented  and amended from time to time,  the  "Indenture"),
among the Company,  the Guarantor,  and the Trustee.  Capitalized terms used but
not defined herein shall have the meanings given to them in the Indenture. Other
terms shall have the meanings given to them in Rule 144A ("Rule 144A") under the
Securities Act of 1933, as amended (the "Securities Act").

     In  connection  with our proposed sale of  $_________  aggregate  principal
amount of Senior Notes, we confirm that such sale has been effected  pursuant to
and in  accordance  with Rule 144A. We are aware that the transfer of the Senior
Notes to us is being made in reliance on the  exemption  from the  provisions of
Section 5 of the Securities Act provided by Rule 144A. Prior to the date of this
Certificate,  we have been given the  opportunity to obtain from the Company and
the Guarantor the information  referred to in Rule  144A(d)(4),  and have either
declined such opportunity or have received such information.

<PAGE>



     Each of you is entitled to rely upon this  Certificate  and is  irrevocably
authorized to produce this  Certificate or a copy hereof to any interested party
in any  administrative  or legal  proceeding or official inquiry with respect to
the matters covered hereby.



                                               Very truly yours,



                                      [Name of Purchaser]



                                      By:_________________________________
                                            Name:
                                            Title:



                                      Dated:  _________________________


                                       2
<PAGE>

                                   IAI Letter

                           FORM OF PURCHASE LETTER FOR
                       INSTITUTIONAL ACCREDITED INVESTORS


Alliant Energy Resources, Inc.
222 West Washington Avenue
Madison, Wisconsin  53703


Merrill Lynch & Co.


c/o Merrill Lynch & Co.
World Financial Center
North Tower
New York, NY  10281-1237


Dear Ladies and Gentlemen:


          The  undersigned  is  delivering  this  letter in  connection  with an
offering of 7 3/8% Senior Notes due 2009 (the "Senior  Notes") of Alliant Energy
Resources, Inc. (the "Company") all as described in the Offering Memorandum (the
"Offering Memorandum") relating to the offering.

          The undersigned hereby confirms, represents and warrants that:

          (i)  The undersigned is an "institutional  accredited investor" within
               the meaning of Rule  501(a)(1),  (2) or (3) under the  Securities
               Act of 1933 (the  "Securities  Act") or an entity in which all of
               the equity owners are accredited  investors within the meaning of
               Rule  501(a)(1),   (2)  or  (3)  under  the  Securities  Act  (an
               "Institutional Accredited Investor");

          (ii) (A) any purchase of the Senior Notes by the  undersigned  will be
               for the  undersigned's  own  account or for the account of one or
               more other Institutional Accredited Investors or as fiduciary for
               the  account  of  one  or  more  trusts,  each  of  which  is  an
               "institutional  accredited  investor"  within the meaning of Rule
               501(a)(7)  under  the  Securities  Act and for each of which  the
               undersigned exercises

<PAGE>

               sole  investment  discretion or (B) the  undersigned is a "bank,"
               within the meaning of Section 3(a)(2) of the Securities Act, or a
               "savings and loan association" or other institution  described in
               Section  3(a)(5)(A) of the  Securities  Act that is acquiring the
               Senior  Notes  as  fiduciary  for  the  account  of one  or  more
               institutions for which the undersigned  exercises sole investment
               discretion;

          (iii)In the event that the undersigned purchases any Senior Notes, the
               undersigned  will  acquire  the  Senior  Notes  having a  minimum
               principal amount of not less than $100,000 for its own account or
               for any separate account for which the undersigned is acting;

          (iv) The  undersigned  has such  knowledge and experience in financial
               and  business   matters  that  the   undersigned  is  capable  of
               evaluating the merits and risks of purchasing the Senior Notes;

          (v)  The  undersigned is not acquiring the Senior Notes with a view to
               distribution thereof or with any present intention of offering or
               selling the Senior  Notes,  except as permitted  below;  provided
               that the disposition of the  undersigned's  property and property
               of any accounts for which the  undersigned is acting as fiduciary
               shall remain at all times within the undersigned's control; and

          (vi) The  undersigned  has received a copy of the Offering  Memorandum
               and  acknowledges   that  the  undersigned  has  access  to  such
               financial  and  other  information,  and has  been  afforded  the
               opportunity  to ask  such  questions  of  representatives  of the
               Company and receive answers  thereto,  as the  undersigned  deems
               necessary in connection  with its decision to purchase the Senior
               Notes.

          The undersigned understands that the Senior Notes are being offered in
a transaction  not involving any public offering within the United States within
the  meaning  of the  Securities  Act and that the  Senior  Notes  have not been
registered under the Securities Act or any applicable state securities laws, and
the  undersigned  agrees,  on its own behalf and on behalf of each  account  for
which the  undersigned  acquires  any  Senior  Notes,  that if in the future the
undersigned  decides to resell or otherwise  transfer  such Senior  Notes,  such
Senior Notes may be resold or otherwise  transferred  only (a) to the Company or
any  subsidiary  thereof,  (b)  inside  the  United  States to a person who is a
"qualified  institutional  buyer" (as defined in Rule 144A under the  Securities
Act) in a  transaction  meeting the  requirements  of Rule 144A,  (c) inside the
United  States  to an


                                       2
<PAGE>


Institutional Accredited Investor that, prior to such transfer, furnishes to the
trustee (or transfer  agent,  as the case may be) for such Senior Notes a signed
letter  containing  certain  representations  and  agreements  relating  to  the
restrictions  on transfer of such Senior  Notes (the form of which letter can be
obtained from such  Trustee),  (d) pursuant to the exemption  from  registration
provided by Rule 144 under the Securities Act (if applicable) or (e) pursuant to
a registration  statement which has been declared effective under the Securities
Act. The  undersigned  agrees that any such transfer of Senior Notes referred to
in this paragraph shall be in accordance with applicable  securities laws of any
state  of  the  United  States  or  any  other  applicable  jurisdiction  and in
accordance  with the  legends  set forth on the  Senior  Notes,  and that it has
provided the Company with a written  opinion of legal  counsel who is acceptable
to the Company to the effect that, and such other  certification  or information
as the Company may reasonably  require to confirm that, the proposed transfer is
being made pursuant to an exemption  from,  or in a transaction  not subject to,
the  registration  requirements of the Securities  Act. The undersigned  further
agrees to  provide  any  person  purchasing  any of the  Senior  Notes  from the
undersigned a notice  advising such  purchaser that resales of such Senior Notes
are  restricted  as  stated  herein  (unless  the  sale of  securities  has been
registered  under the Securities  Act).  The  undersigned  understands  that the
registrar and transfer agent for the Senior Notes will not be required to accept
for  registration  of transfer any Senior  Notes,  except upon  presentation  of
evidence satisfactory to the Company that the foregoing restrictions on transfer
have been complied with. The  undersigned  further  understands  that any Senior
Notes  will be in the form of  definitive  physical  certificates  and that such
certificates  will bear a legend  (unless the sale of the Senior  Notes has been
registered under the Securities Act) reflecting the substance of this paragraph.

          The undersigned  acknowledges that the Company, the Guarantor,  others
and you will  rely upon the  undersigned's  confirmations,  acknowledgments  and
agreements set forth herein,  and the undersigned  agrees to notify you promptly
in writing  if any of its  representations  or  warranties  herein  ceases to be
accurate and complete.

          THE LETTER SHALL BE GOVERNED BY, AND CONSTRUED IN ACCORDANCE WITH, THE
INTERNAL LAWS OF THE STATE OF WISCONSIN.



- ------------------------------------------
(Name of Purchaser)


By:_______________________________________


Name:____________________________________



                                       3





          Unless this  certificate is presented by an authorized  representative
of The Depository  Trust Company,  a New York  corporation  ("DTC"),  to Alliant
Energy Resources,  Inc., or its agent for registration of transfer,  exchange or
payment,  and any certificate  issued is registered in the name of Cede & Co. or
to such  other  entity or in such other name as is  requested  by an  authorized
representative  of DTC (and any payment  hereon is made to Cede & Co. or to 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.

          Transfers  of this Global  Security  shall be limited to  transfers in
whole,  but not in part, to nominees of Cede & Co. or to a successor  thereof or
such successor's nominee.




                         ALLIANT ENERGY RESOURCES, INC.
                          7 3/8% SENIOR NOTES DUE 2009

                                   GLOBAL NOTE

CUSIP No. 18803AC0
$-------------

          Alliant  Energy  Resources,  Inc., a  corporation  duly  organized and
existing  under the laws of the State of Wisconsin  (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 _____________ DOLLARS ($ _____________) on November 9, 2009, at
the office or agency of the Company  referred to below, in such coin or currency
of the United  States of  America as at the time of payment is legal  tender for
the payment of public and private  debts,  and to pay  interest  thereon in like
coin or currency from November 9, 1999, or from the most recent interest payment
date on which  interest has been paid or duly  provided  for,  semi-annually  in
arrears on May 9 and  November 9 in each year,  commencing  May 9, 2000,  at the
rate of 7 3/8% per annum,  until the principal  hereof is paid or made available
for  payment,  and (to the extent  lawful) to pay  interest at the same rate per
annum on any overdue  principal  and premium and on any overdue  installment  of
interest until paid.

<PAGE>

          Interest so payable,  and punctually paid or duly provided for, on any
Interest payment date, as provided in the Indenture, shall be paid to the person
in whose name this  Senior  Note (or one or more  predecessor  Senior  Notes) is
registered at the close of business on the record date for such interest,  which
shall be May 1 or  November 1 (whether or not a business  day),  as the case may
be,  next  preceding  such  Interest  payment  date.  Any such  interest  not so
punctually  paid or duly provided for will forthwith  cease to be payable to the
person in whose name this Senior Note is  registered on such record date and may
either be paid to the person in whose name this Senior Note is registered at the
close of business on a record date for the payment of such defaulted interest to
be fixed by the Trustee,  notice  whereof  shall be given to the person in whose
name this Senior Note is registered  not less than ten days prior to such record
date,  or be paid at any time in any  other  lawful  manner,  all as more  fully
provided in the Indenture.

          This Senior Note is a "book-entry" security and is being registered in
the name of Cede & Co. as nominee of The  Depository  Trust Company  ("DTC"),  a
clearing agency. Subject to the terms of the Indenture,  dated as of November 4,
1999 (as supplemented by the First  Supplemental  Indenture dated as of November
4, 1999 and as  supplemented  and amended from time to time,  the  "Indenture"),
among the Company,  Alliant Energy  Corporation (the  "Guarantor"),  and Firstar
Bank, N.A., as trustee (the  "Trustee"),  and except as provided  therein,  this
Senior Note will be held by a clearing  agency or its  nominee,  and  beneficial
interests will be held by beneficial owners through the book-entry facilities of
such  clearing  agency or its  nominee  in minimum  denominations  of $1,000 and
increments of $1,000 in excess thereof.

          The Trustee will make payments of principal of and interest on (except
as otherwise  provided  below) this Senior Note by wire transfer of  immediately
available  funds.  Notwithstanding  the above,  the final payment on this Senior
Note  will be made  after due  notice by the  Trustee  of the  pendency  of such
payment  and only upon  presentation  and  surrender  of this Senior Note at its
principal  corporate trust office or such other offices or agencies appointed by
the Trustee for that purpose and such other locations provided in the Indenture.

          Payments of  principal of (and  premium,  if any) and interest on this
Senior  Note  will  be made at the  offices  or  agency  of the  Company  or the
Guarantor,  as the  case  may be,  maintained  for that  purpose  in  Milwaukee,
Wisconsin and the Borough of Manhattan,  The City of New York,  New York in such
coin or  currency  of the United  States of America as at the time of payment is
legal tender for payments of public and private debts;  provided,  however, that
at the option of the Company or the  Guarantor,  as the case may be,  payment of
interest  may be made by check  mailed to the  address  of the  person  entitled
thereto as such address shall appear in the register of the Company.

<PAGE>

          This Senior Note is one of a duly  authorized  issue of  Securities of
the Company,  designated 7 3/8% Senior Notes due 2009 (the "7 3/8% Senior Notes"
or the  "Senior  Notes"),  limited  in  aggregate  principal  amount at any time
outstanding to _____________ DOLLARS ($ _____________) which may be issued under
the First Supplemental Indenture. Reference is hereby made to the Indenture, the
First  Supplemental  Indenture  and all  indentures  supplemental  thereto for a
statement of the respective rights,  limitations of rights, duties,  obligations
and immunities  thereunder of the Company,  the  Guarantor,  the Trustee and the
Holders of the Senior Notes,  and the terms upon which the Senior Notes are, and
are to be, authenticated and delivered.  All terms used in this Senior Note that
are defined in the  Indenture  shall have the  meanings  assigned to them in the
Indenture.

          The  Senior  Notes  do  not  have  the  benefit  of any  sinking  fund
obligations  and shall not be  repayable  at the option of the  Holder  prior to
maturity.

          The Senior Notes may be redeemed at the Company's  option, in whole or
in part,  at any time on at least 30 days',  but not more  than 60 days',  prior
written notice mailed to the registered  holders of the Senior Notes, at a price
equal to the  greater of (a) 100% of the  principal  amount of the Senior  Notes
being redeemed and (b) the sum of the present values of the principal  amount of
the Senior Notes to be redeemed and the remaining scheduled payments of interest
on the Senior Notes from the redemption date to November 9, 2009 discounted from
their respective  scheduled  payment dates to the redemption date  semi-annually
(assuming a 360-day year  consisting of twelve 30-day months) at a discount rate
equal to the equivalent yield to maturity of a comparable treasury security plus
20 basis  points,  plus accrued  interest on the Senior Notes to the  redemption
date.

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

          The Indenture  contains  provisions  for defeasance at any time of (a)
the entire  indebtedness  of the Company (and the  Guarantor)  under this Senior
Note and (b) certain  restrictive  covenants and the related defaults and Events
of Default  applicable  to the Company  and the  Guarantor,  in each case,  upon
compliance by the Company and the Guarantor with certain conditions set forth in
the Indenture, which provisions apply to this Senior Note.

          The Indenture  permits,  with certain  exceptions as therein provided,
the amendment  thereof and the modification of the rights and obligations of the
Company

<PAGE>

and the  Guarantor  and the rights of the Holders of the Senior  Notes under the
Indenture at any time by the  Company,  the  Guarantor  and the Trustee with the
consent of the Holders of a majority in aggregate principal amount of the Senior
Notes at the time outstanding. The Indenture also contains provisions permitting
the Holders of specified percentages in aggregate principal amount of the Senior
Notes at the time outstanding,  on behalf of the Holders of all Senior Notes, to
waive compliance by the Company and the Guarantor with certain provisions of the
Indenture and certain past Defaults under the Indenture and their  consequences.
Any such consent or waiver by the Holder of this Senior Note shall be conclusive
and binding upon such Holder and upon all future Holders of this Senior Note and
of any Senior  Note  issued  upon the  registration  of  transfer  thereof or in
exchange  herefor or in lieu hereof,  whether or not notation of such consent or
waiver is made upon this Senior Note.

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

          As provided in the  Indenture  and subject to certain  limitations  on
transfer of this Senior Note by DTC or its nominee,  the transfer of this Senior
Note is  registrable  by the  Registrar,  upon surrender of this Senior Note for
registration  of  transfer  at  the  office  or  agency  of the  Company  or the
Guarantor,  as the case may be,  in  Milwaukee,  Wisconsin  and the  Borough  of
Manhattan,  The City of New York, New York,  duly endorsed by, or accompanied by
the written  instrument of transfer  attached hereto duly executed by the Holder
hereof or his attorney duly authorized in writing, and thereupon one or more new
Senior Notes, of authorized  denominations and for the same aggregate  principal
amount, shall be issued to the designated transferee or transferees.

          The Senior Notes are issuable  only in fully  registered  form without
coupons  in  denominations  of $1,000  and any  integral  multiple  thereof.  As
provided in the Indenture and subject to certain  limitations therein set forth,
the Senior  Notes are  exchangeable  for a like  aggregate  principal  amount of
Senior Notes of different  authorized  denomination,  as requested by the Holder
surrendering the same.

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

<PAGE>

          Prior to due  presentment  of this  Senior  Note for  registration  of
transfer, the Company, the Guarantor,  the Trustee and any agent of the Company,
the Guarantor or the Trustee may treat the person in whose name this Senior Note
is registered  as the owner hereof for all purposes,  whether or not this Senior
Note be overdue, and none of the Company, the Guarantor, the Trustee or any such
agent shall be affected by notice to the contrary.

          Interest  on this  Senior  Note  shall be  computed  on the basis of a
360-day year of twelve 30-day months.

          The  Company  shall  furnish to any Holder of record of Senior  Notes,
upon written request and without charge, a copy of the Indenture.

          The  Indenture  and this  Senior  Note each shall be  governed  by and
construed in accordance  with the laws of the State of Wisconsin  without regard
to principles of conflicts of law.

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


<PAGE>

          In Witness  Whereof,  Alliant Energy  Resources,  Inc. has caused this
Senior Note to be signed in its corporate name by the facsimile signature of two
of its  officers  thereonto  duly  authorized  and has caused a facsimile of its
corporate seal to be affixed hereto or imprinted or otherwise reproduced hereon.

                                         ALLIANT ENERGY RESOURCES, INC.
ATTEST:


By:_________________________             By:________________________________
     Name:                                    Name:
     Title:                                   Title:


<PAGE>

          FOR VALUE RECEIVED, the Guarantor,  hereby unconditionally  guarantees
to the Holder of the Security upon which this  Guarantee is endorsed the due and
punctual  payment of the  principal,  of  premium,  if any,  or interest on said
Security,  when and as the same  shall be become  due and  payable,  whether  at
maturity,  upon  redemption or otherwise,  according to the terms thereof and of
the Indenture referred to therein.

          The Guarantor agrees to determine,  at least one business day prior to
the date upon which a payment of principal,  of premium,  if any, or interest on
said Security is due and payable, whether the Company has available the funds to
make such  payment as the same  shall  become  due and  payable.  In case of the
failure of the Company punctually to pay any such principal, premium, if any, or
interest,  the  Guarantor  hereby  agrees to cause any such  payment  to be made
punctually  when  and as the same  shall  become  due and  payable,  whether  at
maturity, upon redemption or otherwise,  and as if such payment were made by the
Company.

          The Guarantor  hereby agrees that its  obligations  hereunder shall be
unconditional,   irrevocable   and  absolute,   irrespective  of  the  validity,
regularity or enforceability of said Security or said Indenture,  the absence of
any  action to  enforce  the same,  any  waiver or consent by the Holder of said
Security with respect to any  provisions  thereof,  the recovery of any judgment
against the Company or any action to enforce the same or any other  circumstance
which might otherwise  constitute a legal or equitable discharge or defense of a
guarantor.  The  Guarantor  hereby  waives  diligence,  presentment,  demand  of
payment,  filing of claims with a court in the event of merger or  bankruptcy of
the  Company,  any right to require a  proceeding  first  against  the  Company,
protest  or notice  with  respect to said  Security  or  indebtedness  evidenced
thereby,  and all demands  whatsoever and covenants that this Guarantee will not
be discharged  except by complete  performance of the  obligations  contained in
said Security and in this Guarantee.

          The Guarantor  shall be subrogated to all rights of the Holder of said
Security  against the Company in respect to any  amounts  paid by the  Guarantor
pursuant  to the  provisions  of this  Guarantee;  provided,  however,  that the
Guarantor shall not, without the consent of the Holders of all of the Securities
then outstanding,  be entitled to enforce or to receive any payments arising out
of or based upon such right of  subrogation  until the principal of and premium,
if any, and interest on all  Securities  shall have been paid in full or payment
thereof shall have been provided for in accordance with said Indenture.

          Notwithstanding   anything  to  the  contrary   contained  herein,  if
following any payment of principal or interest by the Company on the  Securities
to the Holders of


<PAGE>

the  Securities  it is  determined  by a final  decision of a court of competent
jurisdiction  that such  payment  shall be avoided  by a trustee  in  bankruptcy
(including any debtor-in-possession) as a preference under 11 U.S.C. Section 547
and such payment is paid by such Holder to such trustee in bankruptcy,  then and
to the extent of such repayment the obligations of the Guarantor hereunder shall
remain in full force and effect.

          This Guarantee shall not be valid or become obligatory for any purpose
with  respect  to a  Security  until a  certificate  of  authentication  on such
Security shall have been signed by the Trustee (or the authenticating agent).

          This  Guarantee  shall  be  governed  by  the  laws  of the  State  of
Wisconsin.

          IN  WITNESS  WHEREOF,  ALLIANT  ENERGY  CORPORATION  has  caused  this
Guarantee  to be signed in its  corporate  name by the  signature  of two of its
officers  thereunto  duly  authorized  and has caused its  corporate  seal to be
affixed hereto or imprinted or otherwise reproduced hereon.


                                         ALLIANT ENERGY CORPORATION,
                                         as Guarantor
ATTEST:


By:_________________________             By:________________________________
     Name:                                    Name:
     Title:                                   Title:

<PAGE>

                      TRUSTEE CERTIFICATE OF AUTHENTICATION
                      -------------------------------------


          This  is  one of  the  Senior  Notes  described  in  the  within-named
Indenture.

                                         FIRSTAR BANK, N.A.,
                                         as Trustee



                                         By:________________________________
                                              Name:
                                              Title:



                                                                  Execution Copy

================================================================================




                         ALLIANT ENERGY RESOURCES, INC.


                            (a Wisconsin corporation)


                          7 3/8% SENIOR NOTES DUE 2009





                    UNCONDITIONALLY GUARANTEED AS TO PAYMENT
                 OF PRINCIPAL, PREMIUM, IF ANY, AND INTEREST BY
                           ALLIANT ENERGY CORPORATION
                            (A Wisconsin Corporation)





                               PURCHASE AGREEMENT




Dated:  November 4, 1999



================================================================================

<PAGE>

                                Table of Contents

                                                                            Page
                                                                            ----

SECTION 1.  Representations and Warranties by the Company and the Parent.......3
      (a)  Representations and Warranties......................................3
      (i) Offering Memorandum..................................................3
      (ii) Incorporated Documents..............................................3
      (iii) Independent Accountants............................................4
      (iv) Financial Statements................................................4
      (v) No Material Adverse Change in Business...............................4
      (vi) Good Standing of the Company and the Parent.........................5
      (vii) Good Standing of Designated Subsidiaries...........................5
      (viii) Capitalization....................................................5
      (ix) Authorization of Agreement..........................................6
      (x) Authorization of the Indenture.......................................6
      (xi) Authorization of the Supplemental Indenture.........................6
      (xii)  Authorization of the Registration Rights Agreement................7
      (xiii) Authorization of the Securities...................................7
      (xiv) Description of the Securities and the Indenture....................7
      (xv) Absence of Defaults and Conflicts...................................7
      (xvi) Absence of Labor Dispute...........................................8
      (xvii) Absence of Proceedings............................................8
      (xviii) Absence of Further Requirements..................................9
      (xix) Possession of Licenses and Permits.................................9
      (xx) Title to Property..................................................10
      (xxi) Environmental Laws................................................10
      (xxii) Investment Company Act...........................................11
      (xxiii) Similar Offerings...............................................11
      (xxiv) Rule 144A Eligibility............................................11
      (xxv) No General Solicitation...........................................11
      (xxvi) No Registration Required.........................................11
      (xxvii) Reporting Company...............................................11
      (b) Officer's Certificates..............................................12

SECTION 2.  Sale and Delivery to Initial Purchasers; Closing..................12
      (a)  Securities.........................................................12
      (b)  Payment............................................................12
      (c)  Denominations; Registration........................................12


                                       i
<PAGE>
                                                                            Page
                                                                            ----

SECTION 3.  Covenants of the Company and the Parent...........................13
      (a)  Offering Memorandum................................................13
      (b)  Notice and Effect of Material Events...............................13
      (c)  Amendment to Offering Memorandum and Supplements...................13
      (d)  Qualification of Securities for Offer and Sale]....................14
      (e)  Rating of Securities...............................................14
      (f)  DTC................................................................14
      (g)  Use of Proceeds....................................................14
      (h)  Restriction on Sale of Securities..................................14
      (i)  Filing of Registration Statement...................................14

SECTION 4.  Payment of Expenses...............................................15
      (a)  Expenses...........................................................15
      (b)  Termination of Agreement...........................................16

SECTION 5.  Conditions of Initial Purchasers'Obligations......................16
      (a)  Opinion of Counsel for Company and the Parent......................16
      (b)  Opinion of Counsel for Initial Purchasers..........................16
      (c)  Officers'Certificate...............................................17
      (d)  Accountants'Comfort Letter.........................................17
      (e)  Bring-down Comfort Letter..........................................17
      (f)  Maintenance of Rating..............................................17
      (g)  Additional Documents...............................................18
      (h)  Termination of Agreement...........................................18

SECTION 6.  Subsequent Offers and Resales of the Securities...................18
      (a)  Offer and Sale Procedures..........................................18
      (i) Offers and Sales only to Qualified Institutional Buyers or
                          Institutional Accredited Investors..................18
      (ii) No General Solicitation............................................18
      (iii) Purchases by Non-Bank Fiduciaries.................................19
      (iv) Subsequent Purchaser Notification..................................19
      (v) Minimum Principal Amount............................................19
      (vi) Restrictions on Transfer...........................................19
      (vii) Delivery of Offering Memorandum...................................19
      (b)  Covenants of the Company and the Parent............................20
      (i) Integration.........................................................20
      (ii) Rule 144A Information..............................................20
      (iii) Restriction on Repurchases........................................20
      (c)  Qualified Institutional Buyer......................................20


                                       ii
<PAGE>
                                                                            Page
                                                                            ----

SECTION 7.  Indemnification...................................................20
      (a)  Indemnification of Initial Purchasers..............................20
      (b)  Indemnification of Company and Parent..............................21
      (c)  Actions against Parties; Notification..............................21
      (d)  Settlement without Consent if Failure to Reimburse.................22

SECTION 8.  Contribution......................................................23

SECTION 9.  Representations, Warranties and Agreements to Survive Delivery....24

SECTION 10.  Termination of Agreement.........................................24
      (a)  Termination; General...............................................24
      (b)  Liabilities........................................................25

SECTION 11.  Default by One or More of the Initial Purchasers.................25

SECTION 12.  Notices..........................................................26

SECTION 13.  Parties..........................................................26

SECTION 14.  Governing Law And Time...........................................26

SECTION 15.  Effect of Headings...............................................26


SCHEDULES

      Schedule A - List of Initial Purchasers............................Sch A-1
      Schedule B - Pricing Information...................................Sch B-1
      Schedule C - List of Subsidiaries..................................Sch C-1


EXHIBITS

      Exhibit A - Form of Opinion of Company's Counsel.......................A-1
      Exhibit B - Form of Opinion of Parent's Counsel........................B-1


                                      iii
<PAGE>

                         ALLIANT ENERGY RESOURCES, INC.
                            (a Wisconsin corporation)

                                  $250,000,000
                          7 3/8% SENIOR NOTES DUE 2009

                    UNCONDITIONALLY GUARANTEED AS TO PAYMENT
                 OF PRINCIPAL, PREMIUM, IF ANY, AND INTEREST BY
                           ALLIANT ENERGY CORPORATION
                            (A WISCONSIN CORPORATION)



                               PURCHASE AGREEMENT


                                                                November 4, 1999

MERRILL LYNCH & CO.
Merrill Lynch, Pierce, Fenner & Smith Incorporated
         as Representative of the several Initial Purchasers
c/o      Merrill Lynch & Co.
         Merrill Lynch, Pierce, Fenner & Smith Incorporated
North Tower
World Financial Center
New York, New York  10281

Ladies and Gentlemen:

     Alliant Energy  Resources,  Inc., a Wisconsin  corporation (the "Company"),
and Alliant Energy Corporation, a Wisconsin corporation (the "Parent"),  confirm
their agreement with Merrill Lynch & Co., Merrill Lynch, Pierce,  Fenner & Smith
Incorporated ("Merrill Lynch") and each of the other Initial Purchasers named in
Schedule A hereto (collectively, the "Initial Purchasers," which term shall also
include any initial purchaser  substituted as hereinafter provided in Section 11
hereof),  for whom Merrill Lynch is acting as Representative  (in such capacity,
the "Representative"), with respect to the issue and sale by the Company and the
purchase by the Initial  Purchasers,  acting  severally and not jointly,  of the
respective  principal  amounts  set  forth in said  Schedule  A of  $250,000,000
aggregate  principal  amount of the  Company's 7 3/8% Senior Notes due 2009 (the
"Securities").  The Securities will be unconditionally  guaranteed as to payment
of  principal,  premium,  if any,  and interest by the Parent and will be issued
pursuant to an indenture dated as of November 4, 1999 (the "Indenture")  between
the Company, the Parent and Firstar Bank, N.A., as trustee (the "Trustee").  The
term  "Indenture,"  as used herein,  includes the First  Supplemental  Indenture
dated as of November 4, 1999 (the  "Supplemental  Indenture")  establishing  the
form and terms of the  Securities  pursuant  to Section  2.02 of the  Indenture.
Securities  issued in book-entry form will be

<PAGE>

issued to Cede & Co. as nominee of The Depository Trust Company ("DTC") pursuant
to a letter agreement, to be dated as of the Closing Time (as defined in Section
2(b)) (the "DTC Agreement"), among the Company, the Trustee and DTC.

     The  Company  understands  that the Initial  Purchasers  propose to make an
offering of the  Securities  on the terms and in the manner set forth herein and
agrees that the Initial  Purchasers  may resell,  subject to the  conditions set
forth herein,  all or a portion of the  Securities  to  purchasers  ("Subsequent
Purchasers")  at any time after this  Agreement has been executed and delivered.
The Securities are to be offered and sold through the Initial Purchasers without
being  registered under the Securities Act of 1933, as amended (the "1933 Act"),
in reliance upon exemptions  therefrom.  Pursuant to the terms of the Securities
and the  Indenture,  investors  that  acquire  Securities  may  only  resell  or
otherwise  transfer such Securities if such Securities are hereafter  registered
under the 1933 Act or if an exemption from the registration  requirements of the
1933 Act is  available  (including  the  exemption  afforded by Rule 144A ("Rule
144A")  of the  rules  and  regulations  promulgated  under  the 1933 Act by the
Securities and Exchange  Commission (the  "Commission")  and the exemption under
Regulation D  ("Regulation  D") for sales to a limited  number of  institutional
"accredited  investors" as that term is defined in Rule  501(a)(1),  (2), (3) or
(7) under the Securities Act (each, an "Institutional Accredited Investor")).

     Holders (including subsequent  transferees) of the Securities will have the
registration  rights  set  forth  in  the  Registration  Rights  Agreement  (the
"Registration  Rights Agreement"),  to be entered at the Closing Time, among the
Company,  the Parent and the Initial Purchasers,  for so long as such Securities
constitute  "Registrable  Securities"  (as  defined in the  Registration  Rights
Agreement).  Pursuant to the Registration Rights Agreement,  the Company and the
Parent will agree to file with the Commission under the  circumstances set forth
therein,  (i) a registration  statement  under the 1933 Act (the "Exchange Offer
Registration  Statement")  registering  an issue of the  Company's 7 3/8% Senior
Notes  due 2009  identical  in all  material  respects  to the  Securities  (the
"Exchange  Securities")  to be  offered  in  exchange  for the  Securities  (the
"Exchange  Offer")  and  (ii),  under  certain  circumstances,   a  registration
statement  pursuant  to Rule 415  under  the 1933 Act (the  "Shelf  Registration
Statement") to register the Securities.

     The Company has prepared and delivered to each Initial  Purchaser copies of
a  preliminary  offering  memorandum  dated  November 2, 1999 (the  "Preliminary
Offering  Memorandum")  and has  prepared  and  will  deliver  to  each  Initial
Purchaser,  on the date  hereof or the next  succeeding  day,  copies of a final
offering  memorandum  dated November 4, 1999 (the "Final Offering  Memorandum"),
each for use by such Initial  Purchaser in connection  with its  solicitation of
purchases of, or offering of, the Securities.  "Offering Memorandum" means, with
respect  to any date or time  referred  to in this  Agreement,  the most  recent
offering  memorandum  (whether the Preliminary  Offering Memorandum or the Final
Offering  Memorandum,  or any amendment or supplement to either such  document),
including exhibits thereto and any documents  incorporated therein by reference,
which has been prepared and  delivered by the Company to the Initial  Purchasers
in  connection  with their  solicitation  of  purchases  of, or offering of, the
Securities.


                                       2
<PAGE>

     All references in this Agreement to financial  statements and schedules and
other information  which is "contained,"  "included" or "stated" in the Offering
Memorandum  (or other  references  of like  import)  shall be deemed to mean and
include all such financial  statements and schedules and other information which
are incorporated by reference in the Offering Memorandum;  and all references in
this Agreement to amendments or supplements to the Offering  Memorandum shall be
deemed to mean and  include  the  filing of any  document  under the  Securities
Exchange Act of 1934 (the "1934 Act") which is  incorporated by reference in the
Offering Memorandum.

     SECTION 1. Representations and Warranties by the Company and the Parent.

     (a) Representations  and Warranties.  Except as otherwise noted herein, the
Company  and the Parent  severally  and  jointly  represent  and warrant to each
Initial  Purchaser as of the date hereof and as of the Closing Time  referred to
in Section  2(b)  hereof,  and  severally  and jointly  agree with each  Initial
Purchaser, as follows:

          (i) Offering Memorandum.  The Offering Memorandum does not, and at the
     Closing Time will not,  include an untrue  statement of a material  fact or
     omit to state a material  fact  necessary  in order to make the  statements
     therein,  in the light of the circumstances under which they were made, not
     misleading; provided that this representation, warranty and agreement shall
     not apply to statements in or omissions from the Offering  Memorandum  made
     in  reliance  upon and in  conformity  with  information  furnished  to the
     Company in writing by any Initial Purchaser through Merrill Lynch expressly
     for use in the Offering Memorandum.

          (ii) Incorporated Documents.  (A) The Offering Memorandum as delivered
     from time to time shall  incorporate  by reference  the most recent  annual
     report of the Parent on Form 10-K for the year ended  December 31, 1998, as
     amended by Form 10-K/A filed with the  Commission on November 1, 1999,  the
     quarterly  reports of the Parent on Form 10-Q for the quarters  ended March
     31, 1999 and June 30, 1999,  each as amended by Form 10-Q/As filed with the
     Commission  on November 1, 1999,  and the current  reports of the Parent on
     Form 8-K, both filed with the  Commission on January 20, 1999, and any such
     reports filed with the Commission after the date of the Offering Memorandum
     and before the end of the offering of the  Securities.  (B) With respect to
     this subsection  clause (B) of this clause (ii) only, the Parent represents
     and warrants that the documents  incorporated  or deemed to be incorporated
     by reference in the Offering  Memorandum at the time they were or hereafter
     are filed with the Commission  complied or will comply, as the case may be,
     in all  material  respects  with the  requirements  of the 1934 Act and the
     rules and regulations of the Commission thereunder, and, when read together
     with the other  information  in the  Offering  Memorandum,  at the time the
     Offering  Memorandum  was issued and at the Closing Time,  did not and will
     not  include  an untrue  statement  of a  material  fact or omit to state a
     material  fact  required  to be stated  therein  or  necessary  to make the
     statements therein not misleading.


                                       3
<PAGE>

          (iii)  Independent  Accountants.  The  accountants  who  certified the
     financial  statements  and  supporting  schedules  included in the Offering
     Memorandum are independent  public accountants with respect to the Company,
     the  Parent  and  their  respective  subsidiaries  within  the  meaning  of
     Regulation S-X under the 1933 Act.

          (iv) Financial Statements. The financial statements, together with the
     related schedules and notes,  included in the Offering  Memorandum  present
     fairly in all materials  respects the financial position of the Company and
     its   consolidated   subsidiaries  and  the  Parent  and  its  consolidated
     subsidiaries  at the  dates  indicated  and the  statement  of  operations,
     shareowners'  equity and cash  flows of the  Company  and its  consolidated
     subsidiaries  and the  Parent  and its  consolidated  subsidiaries  for the
     periods  specified;   said  financial  statements  have  been  prepared  in
     conformity with generally accepted  accounting  principles ("GAAP") applied
     on a consistent  basis  throughout  the periods  involved.  The  supporting
     schedules,  if any, included in the Offering  Memorandum  present fairly in
     all materials respects in accordance with GAAP the information  required to
     be stated therein.  The selected  financial data and the summary  financial
     information  included  in the  Offering  Memorandum  present  fairly in all
     materials  respects the information shown therein and have been compiled on
     a basis consistent with that of the audited financial  statements  included
     in the Offering Memorandum.

          (v) No Material Adverse Change in Business. Since the respective dates
     as of which  information  is given in the  Offering  Memorandum,  except as
     otherwise stated therein,  (A) there has been no material adverse change in
     the  condition,  financial  or  otherwise,  or in the  earnings or business
     affairs of the Company and the Parent and their respective subsidiaries, in
     each case,  considered  as one  enterprise,  whether or not  arising in the
     ordinary course of business nor has there been any developments involving a
     prospective material adverse change of the Company and the Parent and their
     respective  subsidiaries,  in  each  case,  considered  as one  enterprise,
     whether or not arising in the  ordinary  course of  business  (a  "Material
     Adverse Effect"),  (B) there have been no transactions  entered into by the
     Company and the Parent or any of their respective subsidiaries,  other than
     those in the ordinary  course of business,  which are material with respect
     to the Company and the Parent and their  respective  subsidiaries,  and (C)
     except for regular dividends on the common stock, par value $.01 per share,
     of the Parent (the "Common Stock") in amounts per share that are consistent
     with past practice,  there has been no dividend or distribution of any kind
     declared, paid or made by the Parent on any class of its capital stock.

          (vi) Good Standing of the Company and the Parent.  Each of the Company
     and the  Parent  has been  duly  organized  and is  validly  existing  as a
     corporation  under the laws of the  State of  Wisconsin  and has  corporate
     power and authority to own, lease and operate their  respective  properties
     and to conduct  their  respective  businesses  as described in the Offering
     Memorandum and to enter into and perform their respective obligations under
     this Agreement; and each of the Company and the Parent is duly qualified as
     a


                                       4
<PAGE>

     foreign  corporation  to transact  business and is in good standing in each
     other  jurisdiction  in which such  qualification  is required,  whether by
     reason of the  ownership or leasing of property or the conduct of business,
     except where the failure so to qualify or to be in good standing  would not
     result in a Material Adverse Effect.

          (vii)  Good  Standing  of  Designated   Subsidiaries.   Each  material
     subsidiary  of the Company is listed on Schedule C hereto (each  subsidiary
     on the list shall be referred to herein as a "Designated  Subsidiary"  and,
     collectively, as the "Designated Subsidiaries"). Each Designated Subsidiary
     has been duly organized and is validly existing as a corporation  under the
     laws of the  jurisdiction  of its  incorporation,  has corporate  power and
     authority  to own,  lease and  operate  its  properties  and to conduct its
     business as described in the Offering Memorandum and is duly qualified as a
     foreign  corporation  to transact  business and is in good standing in each
     jurisdiction in which such qualification is required,  whether by reason of
     the  ownership  or leasing of property or the conduct of  business,  except
     where the failure so to qualify or to be in good standing  would not result
     in a Material Adverse Effect; except as otherwise disclosed in the Offering
     Memorandum,  all of the  issued  and  outstanding  capital  stock  of  each
     Designated Subsidiary has been duly authorized and validly issued, is fully
     paid and  non-assessable  (except,  in the case of Designated  Subsidiaries
     that are Wisconsin corporations, for certain statutory liabilities that may
     be imposed by Section 180.0622(b) of the Wisconsin Business Corporation Law
     (the  "WBCL")  for  unpaid  employee  wages)  and is owned by the  Company,
     directly or through subsidiaries,  free and clear of any security interest,
     mortgage,  pledge,  lien,  encumbrance,  claim or  equity;  and none of the
     outstanding  shares of capital  stock of the  Designated  Subsidiaries  was
     issued  in  violation  of  any   preemptive   or  similar   rights  of  any
     securityholder of such Designated Subsidiary.

          (viii) Capitalization.  The authorized, issued and outstanding capital
     stock of the  Parent  is as set  forth in the  Offering  Memorandum  in the
     columns entitled  "Actual" under the caption  "Capitalization"  (except for
     subsequent  issuances,  if any,  pursuant  to this  Agreement,  pursuant to
     reservations,  agreements,  employee  benefit  plans  referred  to  in  the
     Offering  Memorandum or pursuant to the exercise of convertible  securities
     or options referred to in the Offering  Memorandum).  All of the issued and
     outstanding  shares  of  capital  stock  of  the  Company  have  been  duly
     authorized and validly issued and are fully paid and non-assessable (except
     for  certain   statutory   liabilities  that  may  be  imposed  by  Section
     180.0622(b)  of the WBCL for  unpaid  employee  wages) and are owned by the
     Parent;  and none of the outstanding shares of capital stock of the Company
     was issued in violation of the  preemptive or other  similar  rights of any
     securityholder of the Company.  All of the issued and outstanding shares if
     capital stock of the Parent have been duly  authorized  and validly  issued
     and are  fully  paid  and  non-assessable  (except  for  certain  statutory
     liabilities  that may be  imposed by  Section  180.0622(b)  of the WBCL for
     unpaid employee wages); and all of the issued and outstanding capital stock
     of its  significant  subsidiaries  (as such term is defined in Rule 1-02 of
     Regulation  S-X),  including  the Company,  have been duly  authorized  and
     validly issued and are fully paid and non-


                                       5
<PAGE>

     assessable  (except,  in the case of such  subsidiaries  that are Wisconsin
     corporations,  for  certain  statutory  liabilities  that may be imposed by
     Section  180.0622(b) of the WBCL for unpaid employee wages) and (except for
     directors'  qualifying  shares  and  except as  otherwise  set forth in the
     Offering  Memorandum) are owned directly or indirectly by the Parent,  free
     and clear of all liens, encumbrances, equities or claims.

          (ix)  Authorization of Agreement.  The Company and the Parent have all
     requisite  corporate  power and  authority  to  execute  and  deliver  this
     Agreement and to perform their  obligations  hereunder.  This Agreement has
     been duly authorized, executed and delivered by the Company and the Parent.

          (x)  Authorization  of the  Indenture.  The  Indenture  has been  duly
     authorized  by the Company and the Parent and,  when executed and delivered
     by the  Company,  the Parent and the Trustee,  will  constitute a valid and
     binding  agreement of the Company and the Parent,  enforceable  against the
     Company  and the Parent in  accordance  with its  terms,  except as (A) the
     enforcement  thereof may be limited by bankruptcy,  insolvency  (including,
     without   limitation,   all  laws   relating  to   fraudulent   transfers),
     reorganization,   moratorium  or  similar  laws  affecting  enforcement  of
     creditors'  rights  generally and (B) as enforcement  thereof is subject to
     general  principles  of  equity  (regardless  of  whether   enforcement  is
     considered in a proceeding in equity or at law).

          (xi)  Authorization  of the  Supplemental  Indenture The  Supplemental
     Indenture has been duly  authorized by the Company and the Parent and, when
     executed and  delivered by the  Company,  the Parent and the Trustee,  will
     constitute  a valid and  binding  agreement  of the Company and the Parent,
     enforceable  against  the  Company  and the Parent in  accordance  with its
     terms,  except (A) as the enforcement thereof may be limited by bankruptcy,
     insolvency (including,  without limitation, all laws relating to fraudulent
     transfers),   reorganization,   moratorium   or  similar   laws   affecting
     enforcement of creditors'  rights generally and (B) as enforcement  thereof
     is  subject  to  general   principles  of  equity  (regardless  of  whether
     enforcement is considered in a proceeding in equity or at law).

          (xii) Authorization of the Registration Rights Agreement.  The Company
     and the Parent have all requisite  corporate power and authority to execute
     and deliver the Registration  Rights  Agreement.  The  Registration  Rights
     Agreement has been duly  authorized by the Company and the Parent and, when
     executed  and  delivered  by  the  Company,  the  Parent  and  the  Initial
     Purchasers,  will  constitute a valid and binding  agreement of the Company
     and  the  Parent,  enforceable  against  the  Company  and  the  Parent  in
     accordance  with its terms,  except (A) as the  enforcement  thereof may be
     limited by bankruptcy, insolvency, (including, without limitation, all laws
     relating to fraudulent  transfers),  reorganization,  moratorium or similar
     laws  affecting  enforcement  of  creditors'  rights  generally  and (B) as
     enforcement  thereof is subject to general principles of equity (regardless
     of whether enforcement is considered in a proceeding in equity or at law).


                                       6
<PAGE>


          (xiii) Authorization of the Securities.  The Securities have been duly
     authorized and the Guarantees have been duly authorized and, at the Closing
     Time,  will have been duly executed by the Company and the Securities  will
     have been  guaranteed  by the Parent and,  when  authenticated,  issued and
     delivered in the manner provided for in the Indenture and delivered against
     payment of the purchase price therefor as provided in this Agreement,  will
     constitute  valid and  binding  obligations  of the Company and the Parent,
     enforceable  against the Company  and the Parent in  accordance  with their
     terms,  except (A) as the enforcement thereof may be limited by bankruptcy,
     insolvency (including,  without limitation, all laws relating to fraudulent
     transfers),   reorganization,   moratorium   or  similar   laws   affecting
     enforcement of creditors'  rights generally and (B) as enforcement  thereof
     is  subject  to  general   principles  of  equity  (regardless  of  whether
     enforcement is considered in a proceeding in equity or at law), and will be
     in the  form  contemplated  by,  and  entitled  to  the  benefits  of,  the
     Indenture.

          (xiv) Description of the Securities and the Indenture.  The Securities
     and the Indenture  will conform in all material  respects to the respective
     statements  relating thereto contained in the Offering  Memorandum and will
     be in  substantially  the  respective  forms last  delivered to the Initial
     Purchasers prior to the date of this Agreement.

          (xv)  Absence of Defaults  and  Conflicts.  None of the  Company,  the
     Parent or any of their  respective  subsidiaries  is in  violation of their
     respective  charters  or  by-laws  or in  default  in  the  performance  or
     observance of any obligation, agreement, covenant or condition contained in
     any contract, indenture, mortgage, deed of trust, loan or credit agreement,
     note,  lease or other  agreement or  instrument  to which the Company,  the
     Parent or any of their  respective  subsidiaries is a party or by which any
     of them may be  bound,  or to which  any of the  property  or assets of the
     Company,  the  Parent or any of their  respective  subsidiaries  is subject
     (collectively,  "Agreements and Instruments") except for such defaults that
     would not result in a Material Adverse Effect; and the execution,  delivery
     and performance of this Agreement,  the Indenture,  the Registration Rights
     Agreement,  the Securities  and the  Guarantees and any other  agreement or
     instrument  entered  into or issued or to be entered  into or issued by the
     Company and the Parent in  connection  with the  transactions  contemplated
     hereby or thereby or in the Offering Memorandum and the consummation of the
     transactions  contemplated herein and in the Offering Memorandum (including
     the issuance and sale of the  Securities  and the use of the proceeds  from
     the sale of the  Securities as described in the Offering  Memorandum  under
     the caption "Use of Proceeds") and compliance by the Company and the Parent
     with their  respective  obligations  hereunder have been duly authorized by
     all  necessary  corporate  action and do not and will not,  whether with or
     without the giving of notice or passage of time or both,  conflict  with or
     constitute a breach of, or default or a Repayment  Event (as defined below)
     under,  or result in the  creation  or  imposition  of any lien,  charge or
     encumbrance  upon any property or assets of the Company,  the Parent or any
     of  their   respective   subsidiaries   pursuant  to,  the  Agreements  and
     Instruments  except for such  conflicts,  breaches  or  defaults  or liens,
     charges or encumbrances that, singly or in


                                       7
<PAGE>

     the aggregate, would not result in a Material Adverse Effect, nor will such
     action  result in any  violation  of the  provisions  of (x) the charter or
     by-laws of the Company, the Parent or any of their respective  subsidiaries
     (except for such conflicts, breaches, defaults, events or liens, charges or
     encumbrances that would not result in a Material Adverse Effect) or (y) any
     applicable law, statute, rule, regulation,  judgment, order, writ or decree
     of  any  government,  government  instrumentality  or  court,  domestic  or
     foreign,  having jurisdiction over the Company,  the Parent or any of their
     respective  subsidiaries or any of their assets,  properties or operations,
     except for any such  violations  with  respect to this  clause (y) as would
     not, individually or in the aggregate, result in a Material Adverse Effect.
     As used  herein,  a "Repayment  Event"  means any event or condition  which
     gives the holder of any note,  debenture or other evidence of  indebtedness
     (or any person  acting on such  holder's  behalf)  the right to require the
     repurchase,   redemption   or  repayment  of  all  or  a  portion  of  such
     indebtedness  by  the  Company,  the  Parent  or any  of  their  respective
     subsidiaries.

          (xvi) Absence of Labor Dispute. No labor dispute with the employees of
     the Company or any of its  subsidiaries  exists or, to the knowledge of the
     Company or the Parent, is imminent,  and neither the Company nor the Parent
     is aware of any existing or imminent labor  disturbance by the employees of
     the Company,  its  subsidiaries or their  respective  principal  suppliers,
     manufacturers,  customers  or  contractors,  which,  in  either  case,  may
     reasonably be expected to result in a Material Adverse Effect.

          (xvii)  Absence of  Proceedings.  Except as  disclosed in the Offering
     Memorandum, there is no action, suit, proceeding,  inquiry or investigation
     before or brought by any court or governmental  agency or body, domestic or
     foreign,  now pending,  or, to the  knowledge of the Company or the Parent,
     threatened,  against or affecting  the Company,  the Parent or any of their
     respective  subsidiaries  which might reasonably be expected to result in a
     Material  Adverse  Effect,   or  which  might  reasonably  be  expected  to
     materially  and  adversely  affect  (A) the  properties  or  assets  of the
     Company,  the  Parent or any of their  respective  subsidiaries  or (B) the
     consummation  of the  transactions  contemplated  by this  Agreement or the
     performance by the Company and the Parent of their  respective  obligations
     hereunder.  The aggregate of all pending legal or governmental  proceedings
     to which the Company, the Parent or any of their respective subsidiaries is
     a party or of which  any of their  respective  property  or  assets  is the
     subject  which are not  described  in the  Offering  Memorandum,  including
     ordinary  routine  litigation   incidental  to  the  business,   could  not
     reasonably be expected to result in a Material Adverse Effect.

          (xviii)   Absence  of  Further   Requirements.   No  filing  with,  or
     authorization,    approval,    consent,   license,   order,   registration,
     qualification  or decree of, any court or governmental  authority or agency
     is necessary or required for the  performance by the Company and the Parent
     of their  respective  obligations  hereunder,  in  connection  with (A) the
     offering,  issuance or sale of the Securities hereunder or the consummation
     of the


                                       8
<PAGE>

     transactions  contemplated  by this Agreement or (B) for the due execution,
     delivery or  performance  of the  Indenture  by the Company and the Parent,
     except  such  as have  been  already  obtained  and  except  such as may be
     required  by the  securities  laws  of the  various  states  in  which  the
     Securities  will be offered or sold and the Public Utility  Holding Company
     Act of 1935,  as amended  (the "1935 Act")  (solely with respect to filings
     required to be made with the  Commission  subsequent to the Closing  Time),
     with the offer and sale of the  Securities  or by the 1933 Act or the Trust
     Indenture Act of 1939, as amended (the "1939 Act"),  in connection with the
     exchange offer as contemplated by the Registration Rights Agreement.

          (xix) Possession of Licenses and Permits.  The Company, the Parent and
     their respective  subsidiaries possess such permits,  licenses,  approvals,
     consents and other authorizations  (collectively,  "Governmental Licenses")
     issued by the  appropriate  federal,  state,  local or  foreign  regulatory
     agencies or bodies  necessary  to conduct the business now operated by them
     except where the failure to possess any such  Governmental  Licenses  would
     not have a  Material  Adverse  Effect;  the  Company,  the Parent and their
     respective  subsidiaries are in compliance with the terms and conditions of
     all such Governmental Licenses, except where the failure so to comply would
     not, singly or in the aggregate, have a Material Adverse Effect; all of the
     Governmental  Licenses are valid and in full force and effect, except where
     the  invalidity  of  such  Governmental  Licenses  or the  failure  of such
     Governmental  Licenses  to be in full  force  and  effect  would not have a
     Material  Adverse  Effect;  and none of the Company,  the Parent nor any of
     their  respective  subsidiaries  has  received  any  notice of  proceedings
     relating  to  the  revocation  or  modification  of any  such  Governmental
     Licenses  which,  singly  or  in  the  aggregate,  if  the  subject  of  an
     unfavorable decision, ruling or finding, would result in a Material Adverse
     Effect.

          (xx) Title to Property.  The Company,  the Parent and their respective
     subsidiaries  have good and marketable  title to all real property owned by
     the Company, the Parent and their respective subsidiaries and good title to
     all other  properties  owned by them,  in each case,  free and clear of all
     mortgages,  pledges,  liens,  security interests,  claims,  restrictions or
     encumbrances  of any kind except such as (A) are  described in the Offering
     Memorandum or (B) do not, singly or in the aggregate, materially affect the
     value of such property and do not interfere  with the use made and proposed
     to be made of such  property  by the  Company,  the  Parent or any of their
     respective  subsidiaries;  and all of the leases and subleases  material to
     the business of the Company, the Parent and their respective  subsidiaries,
     considered as one  enterprise,  and under which the Company,  the Parent or
     any of their  respective  subsidiaries  holds  properties  described in the
     Offering Memorandum, are in full force and effect, and none of the Company,
     the Parent nor any of their  respective  subsidiaries has any notice of any
     material  claim of any sort that has been asserted by anyone adverse to the
     rights of the Company,  the Parent or any of their respective  subsidiaries
     under any of the leases or  subleases  mentioned  above,  or  affecting  or
     questioning  the rights of such the Company,  the Parent or any  subsidiary
     thereof to the


                                       9
<PAGE>

     continued  possession  of the leased or subleased  premises  under any such
     lease or  sublease,  except  where such  would not have a Material  Adverse
     Effect.

          (xxi)   Environmental  Laws.  Except  as  described  in  the  Offering
     Memorandum and the documents  incorporated by reference  therein and except
     such matters as would not, singly or in the aggregate, result in a Material
     Adverse  Effect,  (A)  none of the  Company,  the  Parent  or any of  their
     respective  subsidiaries  is in violation of any federal,  state,  local or
     foreign statute, law, rule, regulation,  ordinance, code, policy or rule of
     common  law or  any  judicial  or  administrative  interpretation  thereof,
     including  any  judicial  or  administrative  order,  consent,   decree  or
     judgment,  relating  to  pollution  or  protection  of  human  health,  the
     environment  (including,  without  limitation,  ambient air, surface water,
     groundwater,   land  surface  or  subsurface  strata)  including,   without
     limitation,  laws and  regulations  relating to the  release or  threatened
     release of chemicals, pollutants,  contaminants,  wastes, toxic substances,
     hazardous  substances,   petroleum  or  petroleum  products  (collectively,
     "Hazardous  Materials") or to the  manufacture,  processing,  distribution,
     use,  treatment,  storage,  disposal,  transport  or handling of  Hazardous
     Materials (collectively, "Environmental Laws"), (B) the Company, the Parent
     and their  respective  subsidiaries  have all permits,  authorizations  and
     approvals required under any applicable  Environmental Laws and are each in
     compliance  with their  requirements,  (C) there are no pending  or, to the
     knowledge of the Company, threatened administrative, regulatory or judicial
     actions,  suits,  demands,  demand  letters,   claims,  liens,  notices  of
     noncompliance or violation,  investigation  or proceedings  relating to any
     Environmental  Law  against  the  Company,  the  Parent  or  any  of  their
     respective  subsidiaries and (D) there are no events or circumstances  that
     might  reasonably be expected to form the basis of an order for clean-up or
     remediation,  or an action,  suit or  proceeding  by any  private  party or
     governmental body or agency,  against or affecting the Company,  the Parent
     or any of their respective  subsidiaries relating to Hazardous Materials or
     Environmental Laws.

          (xxii) Investment  Company Act. Neither the Company nor the Parent is,
     and upon the issuance and sale of the Securities as herein contemplated and
     the application of the net proceeds  therefrom as described in the Offering
     Memorandum will be, an "investment company" or an entity "controlled" by an
     "investment  company" as such terms are defined in the  Investment  Company
     Act of 1940, as amended (the "1940 Act").

          (xxiii) Similar Offerings.  None of the Company,  the Parent or any of
     their respective  affiliates,  as such term is defined in Rule 501(b) under
     the 1933 Act (each, an "Affiliate"), has, directly or indirectly, solicited
     any  offer to buy,  sold or  offered  to sell or  otherwise  negotiated  in
     respect  of, or will  solicit  any  offer to buy,  sell or offer to sell or
     otherwise  negotiate  in respect of, in the United  States or to any United
     States  citizen or resident,  any security  which is or would be integrated
     with  the  sale of the  Securities  in a  manner  that  would  require  the
     Securities to be registered under the 1933 Act.


                                       10
<PAGE>


          (xxiv) Rule 144A  Eligibility.  The Securities are eligible for resale
     pursuant  to Rule 144A and will not be, at the  Closing  Time,  of the same
     class as securities  listed on a national  securities  exchange  registered
     under Section 6 of the 1934 Act, or quoted in a U.S. automated  interdealer
     quotation system.

          (xxv) No General Solicitation.  None of the Company, the Parent, their
     Affiliates  or any person  acting on its or any of their behalf (other than
     the  Initial  Purchasers,  as to whom the  Company  and the Parent  make no
     representation) has engaged or will engage, in connection with the offering
     of  the  Securities,  in  any  form  of  general  solicitation  or  general
     advertising within the meaning of Rule 502(c) under the 1933 Act.

          (xxvi) No Registration Required.  Subject to compliance by the Initial
     Purchasers with the  representations  and warranties set forth in Section 2
     and the  procedures  set forth in Section 6 hereof,  it is not necessary in
     connection  with the offer,  sale and  delivery  of the  Securities  to the
     Initial  Purchasers  and  to  each  Subsequent   Purchaser  in  the  manner
     contemplated by this Agreement and the Offering  Memorandum to register the
     Securities  under the 1933 Act or to qualify the  Indenture  under the 1939
     Act.

          (xxvii) Reporting  Company.  With respect to this clause (xxvii) only,
     the Parent  represents  and  warrants  that it is subject to the  reporting
     requirements of Section 13 or Section 15(d) of the 1934 Act.

     (b) Officer's  Certificates.  Any certificate  signed by any officer of the
Company and of the Parent or any of their respective  subsidiaries  delivered to
the  Representative  or to counsel for the Initial  Purchasers shall be deemed a
representation  and  warranty  by the  Company  and the  Parent to each  Initial
Purchaser as to the matters covered thereby.

     SECTION 2. Sale and Delivery to Initial Purchasers; Closing.

     (a) Securities.  On the basis of the  representations and warranties herein
contained and subject to the terms and conditions  herein set forth, the Company
agrees to sell to each Initial  Purchaser,  severally and not jointly,  and each
Initial  Purchaser,  severally  and not  jointly,  agrees to  purchase  from the
Company, at the price set forth in Schedule B, the aggregate principal amount of
Securities set forth in Schedule A opposite the name of such Initial  Purchaser,
plus any additional  principal amount of Securities which such Initial Purchaser
may become  obligated  to  purchase  pursuant  to the  provisions  of Section 11
hereof.

     (b)  Payment.   Payment  of  the  purchase   price  for,  and  delivery  of
certificates  for, the Securities shall be made at the offices of the Company at
222 West Washington Avenue, Madison, Wisconsin, 53703, or at such other place as
shall be  agreed  upon by the  Representative  and the  Company,  at 10:00  A.M.
(eastern time) on the third business day after the date hereof (unless postponed
in accordance  with the  provisions of Section 11), or such other time not later
than  ten  business  days  after  such  date  as  shall  be  agreed  upon by the
Representative and the Company (such time and date of payment and delivery being
herein called the "Closing Time").


                                       11
<PAGE>


     Payment  shall  be made to the  Company  by wire  transfer  of  immediately
available funds to a bank account designated by the Company, against delivery to
the  Representative  for the  respective  accounts of the Initial  Purchasers of
certificates  for the Securities to be purchased by them. It is understood  that
each Initial Purchaser has authorized the  Representative,  for its account,  to
accept  delivery of, receipt for and make payment of the purchase price for, the
Securities which it has agreed to purchase.  Merrill Lynch, individually and not
as representative of the Initial Purchasers, may (but shall not be obligated to)
make payment of the  purchase  price for the  Securities  to be purchased by any
Initial  Purchaser  whose funds have not been received by the Closing Time,  but
such  payment  shall not relieve  such Initial  Purchaser  from its  obligations
hereunder.

     (c) Denominations;  Registration.  Certificates for the Securities shall be
in such  denominations  ($100,000  or  integral  multiples  of  $1,000 in excess
thereof)  and  registered  in such names as the  Representative  may  request in
writing at least one full business day before the Closing Time. The certificates
representing  the  Securities  shall  be  made  available  for  examination  and
packaging by the Initial  Purchasers in Madison,  Wisconsin not later than 10:00
A.M. on the last business day prior to the Closing Time.

     SECTION 3.  Covenants  of the Company  and the Parent.  The Company and the
Parent, jointly and severally, covenant with each Initial Purchaser as follows:

     (a)  Offering  Memorandum.  The  Company  and the  Parent,  as  promptly as
possible, will furnish to each Initial Purchaser, without charge, such number of
copies of the Preliminary Offering Memorandum, the Final Offering Memorandum and
any amendments and supplements  thereto and documents  incorporated by reference
therein as such Initial Purchasers may reasonably request.

     (b) Notice and Effect of Material  Events.  The Company and the Parent will
immediately notify each Initial  Purchaser,  and confirm such notice in writing,
of (x) any filing made by the Company or the Parent of  information  relating to
the  offering  of the  Securities  with any  securities  exchange  or any  other
regulatory body in the United States or any other jurisdiction, and (y) prior to
the completion of the placement of the  Securities by the Initial  Purchasers as
evidenced by a notice in writing from the Initial Purchasers to the Company, any
material changes in or affecting the condition,  financial or otherwise,  or the
earnings or business  affairs of the Company and the Parent and their respective
subsidiaries,  taken as a whole, nor has there been any developments involving a
prospective  material  adverse  change of the  Company  and the Parent and their
respective  subsidiaries,  taken as a whole, which (i) make any statement in the
Offering Memorandum  materially false or misleading or (ii) are not disclosed in
the  Offering  Memorandum.  In such event or if during such time any event shall
occur as a result of which it is necessary,  in the reasonable opinion of any of
the Company,  the Parent,  their counsel,  the Initial Purchasers or counsel for
the Initial Purchasers,  to amend or supplement the Final Offering Memorandum in
order that the Final Offering  Memorandum not include any untrue  statement of a
material  fact or omit to state a material  fact  necessary in order to make the


                                       12
<PAGE>

statements  therein  not  misleading  in the  light  of the  circumstances  then
existing,  the Company will  forthwith  amend or supplement  the Final  Offering
Memorandum by preparing and furnishing to each Initial Purchaser an amendment or
amendments of, or a supplement or supplements to, the Final Offering  Memorandum
(in form and substance satisfactory in the reasonable opinion of counsel for the
Initial  Purchasers) so that, as so amended or supplemented,  the Final Offering
Memorandum  will not include an untrue  statement of a material  fact or omit to
state a material fact necessary in order to make the statements  therein, in the
light of the circumstances  existing at the time it is delivered to a Subsequent
Purchaser, not misleading.

     (c) Amendment to Offering  Memorandum and Supplements.  The Company and the
Parent will advise each Initial  Purchaser  promptly of any proposal to amend or
supplement  the  Offering  Memorandum  and will not  effect  such  amendment  or
supplement  without the consent of the Initial  Purchasers,  which consent shall
not be unreasonably withheld. Neither the consent of the Initial Purchasers, nor
the Initial  Purchaser's  delivery of any such  amendment or  supplement,  shall
constitute a waiver of any of the conditions set forth in Section 5 hereof.

     (d)  Qualification  of Securities  for Offer and Sale. The Company will use
its best efforts,  in cooperation  with the Initial  Purchasers,  to qualify the
Securities  for offering and sale under the applicable  securities  laws of such
states and other  jurisdictions  as the  Representative  may  designate and will
maintain such  qualifications  in effect as long as required for the sale of the
Securities;  provided,  however, that the Company shall not be obligated to file
any general consent to service of process or to qualify as a foreign corporation
or as a dealer in securities in any jurisdiction in which it is not so qualified
or  to  subject  itself  to  taxation  in  respect  of  doing  business  in  any
jurisdiction in which it is not otherwise so subject.

     (e) Rating of  Securities.  The Company  shall take all  reasonable  action
necessary to enable  Standard & Poor's  Ratings  Services,  a division of McGraw
Hill, Inc. ("S&P"),  and Moody's  Investors Service Inc.  ("Moody's") to provide
their respective credit ratings of the Securities.

     (f) DTC. The Company will  cooperate  with the  Representative  and use its
best  efforts  to  permit  the  Securities  to be  eligible  for  clearance  and
settlement through the facilities of DTC.

     (g) Use of Proceeds.  The Company will use the net proceeds  received by it
from  the  sale  of the  Securities  in the  manner  specified  in the  Offering
Memorandum under "Use of Proceeds."

     (h) Restriction on Sale of Securities. During a period of five (5) business
days from the date of the Closing Time, none of the Company, the Parent or their
respective  subsidiaries  will,  without  the prior  written  consent of Merrill
Lynch,  directly or indirectly,  issue,  sell, offer or agree to sell, grant any
option for the sale of, or otherwise  dispose of, any other debt  securities  of
the  Company or the Parent or  securities  of the Company or the Parent that are
convertible  into,  or  exchangeable  for,  the  Securities  or such  other debt
securities.


                                       13
<PAGE>


     (i) Filing of Registration Statement.  The Company and the Parent (A) shall
file the Exchange Offer Registration  Statement on an appropriate form under the
1933 Act with the Commission  within 135 days of the Closing Time, (B) shall use
their reasonable best efforts to cause the Exchange Offer Registration Statement
to be declared effective under the 1933 Act within 180 days of the Closing Time,
(C)  shall  use  their  reasonable  best  efforts  to keep  the  Exchange  Offer
Registration Statement effective until the closing of the Exchange Offer and (D)
shall use their  reasonable  best  efforts  to cause  the  Exchange  Offer to be
consummated  not later than 45 days following the effective date of the Exchange
Offer Registration  Statement.  In the event that (a) the Company and the Parent
are not permitted to effect the Exchange  Offer as  contemplated  because of any
changes in law,  Commission  rules or regulations or applicable  interpretations
thereof by the staff of the Commission,  (b) for any other reason,  the Exchange
Offer Registration Statement is not declared effective within 180 days following
the Closing Time or the Exchange Offer is not  consummated  within 45 days after
the  effectiveness of the Exchange Offer  Registration  Statement,  (c) upon the
request  of  any  of  the  Initial  Purchasers  within  90  days  following  the
consummation  of the  Exchange  Offer (d) if, as a result of any changes in law,
Commission  rules or  regulations or applicable  interpretations  thereof by the
staff of the  commission  or  otherwise  a holder of  Securities  (other than an
Initial Purchaser holding Securities  acquired directly from the Company) is not
permitted  to  participate  in the  Exchange  Offer  or does not  receive  fully
tradeable Exchange  Securities  pursuant to the Exchange Offer or (e) if, unless
the Company  determines  otherwise,  at the time of the issuance of the Exchange
Securities or the Private Exchange Securities (as defined herein),  the interest
rate of such  securities will be 300 basis points above the yield to maturity of
a United States Treasury obligation having a remaining term equal to the average
life of such  security,  the Company and the Parent shall  thereafter  use their
reasonable  best  efforts  to cause to be  declared  effective  as  promptly  as
practicable  but not later than 210 days after the issuance of the  Securities a
Shelf Registration  Statement as provided in the Registration  Rights Agreement.
For purposes of this Agreement,  "Private Exchange  Securities" shall mean those
securities  issued by the Company and the Parent upon the request of any Initial
Purchaser for the Securities held by such Initial  Purchaser which were acquired
from the  Company  and have the  status of an unsold  allotment  in the  initial
distribution.  The Private Exchange  Securities shall be issued and delivered to
the  Initial  Purchaser   simultaneously  with  the  delivery  of  the  Exchange
Securities in the Exchange Offer.

     SECTION 4. Payment of Expenses.

     (a) Expenses. The Company will pay all expenses incident to the performance
of  its  obligations  under  this  Agreement,  including  (i)  the  preparation,
printing,  delivery to the  Initial  Purchasers  and any filing of the  Offering
Memorandum (including financial statements and any schedules or exhibits and any
document  incorporated therein by reference) and of each amendment or supplement
thereto,  (ii) the preparation,  printing and delivery to the Initial Purchasers
of this  Agreement,  any Agreement among Initial  Purchasers,  the Indenture and
such  other  documents  as may be  required  in  connection  with the  offering,
purchase,  sale, issuance or delivery of the Securities,  (iii) the preparation,
issuance  and delivery of the  certificates  for the


                                       14
<PAGE>

Securities to the Initial Purchasers, including any transfer taxes, any stamp or
other duties  payable upon the sale,  issuance and delivery of the Securities to
the Initial Purchasers and any charges of DTC in connection therewith,  (iv) the
fees and disbursements of the Company's counsel, accountants and other advisors,
(v) the qualification of the Securities under securities laws in accordance with
the provisions of Section 3(d) hereof,  including filing fees and the reasonable
fees and  disbursements  of counsel for the  Initial  Purchasers  in  connection
therewith and in connection  with the  preparation  of the Blue Sky Survey,  any
supplement thereto;  provided, that, counsel fees in connection therewith do not
exceed $5,000, (vi) the fees and expenses of the Trustee, including the fees and
disbursements  of counsel for the Trustee in  connection  with the Indenture and
the Securities  and (vii) any fees payable in connection  with the rating of the
Securities

     (b)  Termination  of  Agreement.  If this  Agreement is  terminated  by the
Representative  in  accordance  with the  provisions  of  Section  5 or  Section
10(a)(i) hereof,  the Company shall reimburse the Initial  Purchasers for all of
their out-of-pocket expenses, including the reasonable fees and disbursements of
counsel for the Initial  Purchasers,  provided,  that, such fees and expenses do
not exceed $200,000.

     SECTION 5. Conditions of Initial Purchasers'  Obligations.  The obligations
of the several Initial  Purchasers  hereunder are subject to the accuracy in all
material respects of the  representations  and warranties of the Company and the
Parent  contained in Section 1 hereof or in  certificates  of any officer of the
Company, the Parent or any of their respective  subsidiaries  delivered pursuant
to the provisions  hereof,  to the  performance in all material  respects by the
Company  and the  Parent of their  respective  covenants  and other  obligations
hereunder, and to the following further conditions:

     (a) Opinion of Counsel for Company and the Parent. At the Closing Time, the
Representative  shall  have  received  the  favorable  opinion,  dated as of the
Closing Time, of Foley & Lardner, counsel for the Company, in form and substance
satisfactory  to counsel for the  Initial  Purchasers,  together  with signed or
reproduced copies of such letter for each of the other Initial Purchasers to the
effect set forth in Exhibit A hereto. In addition, the Representative shall have
received the favorable opinion, dated as of the Closing Time of Foley & Lardner,
counsel for the Parent,  in form and substance  satisfactory  to counsel for the
Initial  Purchasers  to effect set forth in Exhibit B hereto.  Such  counsel may
also  state  that they have  relied on  certificates  of public  officials  and,
insofar as such  opinions  involve  factual  matters,  they have relied,  to the
extent they deem  proper,  upon  certificates  of officers of the  Company,  the
Parent and their respective subsidiaries.

     (b) Opinion of Counsel for Initial  Purchasers.  At the Closing  Time,  the
Representative  shall  have  received  the  favorable  opinion,  dated as of the
Closing  Time, of  Chadbourne & Parke LLP,  counsel for the Initial  Purchasers,
together with signed or  reproduced  copies of such letter for each of the other
Initial Purchasers with respect to certain matters.  In giving such opinion such
counsel may rely, as to all matters governed by the laws of jurisdictions


                                       15
<PAGE>

other  than the law of the  State of New York,  the  federal  law of the  United
States  and the  General  Corporation  Law of the  State of  Delaware,  upon the
opinions of counsel  satisfactory to the  Representative.  Such counsel may also
state that, insofar as such opinion involves factual matters,  they have relied,
to the extent they deem proper,  upon  certificates  of officers of the Company,
the  Parent  and  their  respective  subsidiaries  and  certificates  of  public
officials.

     (c) Officers' Certificate.  At the Closing Time, there shall not have been,
since the date hereof or since the respective  dates as of which  information is
given in the Offering Memorandum,  any material adverse change in the condition,
financial or  otherwise,  or in the earnings or business  affairs of the Company
and the Parent and their respective  subsidiaries,  in each case,  considered as
one enterprise,  whether or not arising in the ordinary course of business,  nor
has there been any developments  involving a prospective material adverse change
of the Company and the Parent and their respective  subsidiaries,  in each case,
considered as one  enterprise,  whether or not arising in the ordinary course of
business,  and the  Representative  shall  have  received a  certificate  of the
President, Chief Executive Officer or a Vice President of the Company and of the
chief  financial or chief  accounting  officer of the  Company,  dated as of the
Closing  Time,  to the effect that (i) there has been no such  material  adverse
change, (ii) the representations and warranties in Section 1 hereof are true and
correct  in all  materials  respects  with the same  force and  effect as though
expressly  made at and as of the Closing Time and (iii) the Company has complied
in all material respects with all agreements and satisfied all conditions on its
part  to be  performed  or  satisfied  at or  prior  to the  Closing  Time.  The
Representative  shall also have received a certificate of the  President,  Chief
Executive  Officer or Vice President of the Parent and of the chief financial or
chief  accounting  officer of the Parent,  dated as of the Closing  Time, to the
effect that (i) the  representations and warranties in Section 1 hereof are true
and correct in all material  respects  with the same force and effect as through
made at and as of the  Closing  Time and (ii) the  Parent  has  complied  in all
material  respects with all  agreements and satisfied all conditions on its part
to be performed or satisfied at or prior to the Closing Time.

     (d)  Accountants'  Comfort  Letter.  At the time of the  execution  of this
Agreement,  the  Representative  shall have received from Arthur  Andersen LLP a
letter   dated  such  date,   in  form  and   substance   satisfactory   to  the
Representative,  together  with signed or  reproduced  copies of such letter for
each of the other Initial  Purchasers  containing  statements and information of
the type  ordinarily  included  in  accountants'  "comfort  letters"  to Initial
Purchasers  with  respect to the  financial  statements  and  certain  financial
information contained in the Offering Memorandum.

     (e) Bring-down  Comfort  Letter.  At the Closing Time,  the  Representative
shall have received from Arthur  Andersen LLP a letter,  dated as of the Closing
Time,  to the  effect  that they  reaffirm  the  statements  made in the  letter
furnished pursuant to subsection (d) of this Section,  except that the specified
date referred to shall be a date not more than three  business days prior to the
Closing Time.


                                       16
<PAGE>


     (f)  Maintenance of Rating.  At the Closing Time,  the Securities  shall be
rated at least A3 by Moody's and A by S&P, and the Company shall have  delivered
to the  Representative  a letter dated the Closing  Time,  from each such rating
agency, or other evidence  satisfactory to the  Representative,  confirming that
the Securities have such ratings;  and since the date of this  Agreement,  there
shall not have occurred a downgrading  in the rating  assigned to the Securities
or any of the  Company's  other debt  securities by any  "nationally  recognized
statistical  rating  agency,"  as that term is  defined  by the  Commission  for
purposes of Rule  436(g)(2)  under the 1933 Act, and no such  securities  rating
agency shall have publicly  announced that it has under  surveillance or review,
with possible negative implications,  its rating of the Securities or any of the
Company's other debt securities .

     (g)  Additional  Documents.  At the Closing  Time,  counsel for the Initial
Purchasers shall have been furnished with such documents as they may require for
the  purpose  of  enabling  them to  pass  upon  the  issuance  and  sale of the
Securities as herein  contemplated,  or in order to evidence the accuracy of any
of  the  representations  or  warranties,  or  the  fulfillment  of  any  of the
conditions,  herein  contained;  and all  proceedings  taken by the  Company  in
connection  with the issuance and sale of the Securities as herein  contemplated
shall be reasonably satisfactory in form and substance to the Representative and
counsel for the Initial Purchasers.

     (h)  Termination of Agreement.  If any condition  specified in this Section
shall  not have  been  fulfilled  when and as  required  to be  fulfilled,  this
Agreement may be terminated  by the  Representative  by notice to the Company at
any time at or prior to the Closing Time, and such termination  shall be without
liability  of any party to any other  party  except as provided in Section 4 and
except that Sections 1, 7, 8 and 9 shall survive any such termination and remain
in full force and effect.

     SECTION 6. Subsequent Offers and Resales of the Securities.

     (a) Offer  and Sale  Procedures.  Each of the  Initial  Purchasers  and the
Company  hereby  establish  and agree to observe  the  following  procedures  in
connection with the offer and sale of the Securities:

          (i)  Offers  and  Sales  only to  Qualified  Institutional  Buyers  or
     Institutional  Accredited  Investors.  Offers  and sales of the  Securities
     shall only be made (A) to  persons  whom the  offeror or seller  reasonably
     believes  to be  qualified  institutional  buyers,  as defined in Rule 144A
     under the 1933 Act ("Qualified  Institutional  Buyers") or (B) to a limited
     number of persons who are other institutional accredited investors, as such
     term is defined in Rule 501(a)(1),  (2), (3) or (7) under the 1933 Act that
     the offeror or seller reasonably  believes to be and, with respect to sales
     and  deliveries,   that  are  such   institutional   accredited   investors
     ("Institutional Accredited Investors").

          (ii) No  General  Solicitation.  No  general  solicitation  or general
     advertising  (within the meaning of Rule 502(c) under the 1933 Act) will be
     used in the United  States in  connection  with the offering or sale of the
     Securities.


                                       17
<PAGE>

          (iii)  Purchases  by Non-Bank  Fiduciaries.  In the case of a non-bank
     Subsequent  Purchaser of a Security  acting as a fiduciary  for one or more
     third  parties,  each third party shall,  in the judgment of the applicable
     Initial Purchaser,  be an Institutional  Accredited Investor or a Qualified
     Institutional Buyer.

          (iv) Subsequent  Purchaser  Notification.  Each Initial Purchaser will
     take reasonable steps to inform,  and cause each of its U.S.  Affiliates to
     take reasonable  steps to inform,  persons  acquiring  Securities from such
     Initial  Purchaser or  affiliate,  as the case may be, in the United States
     that the Securities (A) have not been and will not be registered  under the
     1933 Act,  (B) are being sold to them without  registration  under the 1933
     Act in reliance on Rule 144A or in accordance  with another  exemption from
     registration  under  the 1933 Act,  as the case may be,  and (C) may not be
     offered,  sold or  otherwise  transferred  except (1) to the Company or (2)
     inside the United States in accordance  with (x) Rule 144A to a person whom
     the seller reasonably  believes is a Qualified  Institutional Buyer that is
     purchasing  such  Securities  for its own  account or for the  account of a
     Qualified  Institutional Buyer to whom notice is given that the offer, sale
     or  transfer  is being made in  reliance  on Rule 144A or (y)  pursuant  to
     another available exemption from registration under the 1933 Act.

          (v) Minimum  Principal  Amount.  No sale of the  Securities to any one
     Subsequent  Purchaser will be for less than U.S. $100,000  principal amount
     and no  Security  will be  issued  in a smaller  principal  amount.  If the
     Subsequent  Purchaser is a non-bank  fiduciary  acting on behalf of others,
     each  person for whom it is acting  must  purchase  at least U.S.  $100,000
     principal amount of the Securities.

          (vi) Restrictions on Transfer. The transfer restrictions and the other
     provisions set forth in the Offering Memorandum under the heading "Transfer
     Restrictions,"  including the legend required  thereby,  shall apply to the
     Securities  except as  otherwise  agreed  by the  Company  and the  Initial
     Purchasers.

          (vii)  Delivery of Offering  Memorandum.  Each Initial  Purchaser will
     deliver to each purchaser of the Securities from such Initial Purchaser, in
     connection with its original distribution of the Securities,  a copy of the
     Offering  Memorandum,  as  amended  and  supplemented  at the  date of such
     delivery.


                                       18
<PAGE>


     (b)  Covenants  of the Company and the Parent.  The Company and the Parent,
jointly and severally, covenant with each Initial Purchaser as follows:

          (i)  Integration.  The Company and the Parent agree that they will not
     and will cause their respective  Affiliates not to, directly or indirectly,
     solicit any offer to buy,  sell or make any offer or sale of, or  otherwise
     negotiate  in respect of,  securities  of the Company of any class if, as a
     result of the doctrine of  "integration"  referred to in Rule 502 under the
     1933 Act,  such offer or sale would render  invalid (for the purpose of (i)
     the sale of the Securities by the Company to the Initial  Purchasers,  (ii)
     the  resale of the  Securities  by the  Initial  Purchasers  to  Subsequent
     Purchasers  or  (iii)  the  resale  of the  Securities  by such  Subsequent
     Purchasers to others) the exemption from the  registration  requirements of
     the 1933 Act provided by Section 4(2) thereof or by Rule 144A thereunder or
     otherwise.

          (ii) Rule 144A Information.  The Company and the Parent agree that, in
     order to render the  Securities  eligible for resale  pursuant to Rule 144A
     under the 1933 Act, while any of the Securities  remain  outstanding,  they
     will  make  available,  upon  request,  to  any  holder  of  Securities  or
     prospective  purchasers of  Securities  the  information  specified in Rule
     144A(d)(4), unless such information is furnished to the Commission pursuant
     to Section 13 or 15(d) of the 1934 Act.

          (iii)  Restriction on  Repurchases.  Until the expiration of two years
     after the original  issuance of the Securities,  the Company and the Parent
     will not, and will cause their  respective  Affiliates  not to,  resell any
     Securities which are "restricted securities" (as such term is defined under
     Rule  144(a)(3)  under  the  1933  Act),  whether  as  beneficial  owner or
     otherwise  (except as agent acting as a securities  broker on behalf of and
     for the  account  of  customers  in the  ordinary  course  of  business  in
     unsolicited broker's transactions).

     (c) Qualified Institutional Buyer. Each Initial Purchaser severally and not
jointly  represents and warrants to, and agrees with, the Company and the Parent
that it is a Qualified Institutional Buyer within the meaning of Rule 144A under
the 1933 Act and an  "accredited  investor"  within the  meaning of Rule  501(a)
under the 1933 Act (an "Accredited Investor").

     SECTION 7. Indemnification.

     (a)  Indemnification  of Initial  Purchasers.  The  Company and the Parent,
jointly  and  severally,  agree to  indemnify  and hold  harmless  each  Initial
Purchaser and each person, if any, who controls any Initial Purchaser within the
meaning of Section 15 of the 1933 Act or Section 20 of the 1934 Act as follows:

          (i) against  any and all loss,  liability,  claim,  damage and expense
     whatsoever,  as  incurred,  arising out of any untrue  statement or alleged
     untrue  statement of a material fact contained in any Preliminary  Offering
     Memorandum or the Final Offering


                                       19
<PAGE>

     Memorandum  (or any  amendment or supplement  thereto),  or the omission or
     alleged  omission  therefrom of a material fact  necessary in order to make
     the statements  therein, in the light of the circumstances under which they
     were made, not misleading;

          (ii) against any and all loss,  liability,  claim,  damage and expense
     whatsoever,  as  incurred,  to the extent of the  aggregate  amount paid in
     settlement of any  litigation,  or any  investigation  or proceeding by any
     governmental  agency  or body,  commenced  or  threatened,  or of any claim
     whatsoever  based upon any such untrue  statement or omission,  or any such
     alleged  untrue  statement or omission;  provided  that (subject to Section
     7(d) below) any such settlement is effected with the written consent of the
     Company and the Parent; and

          (iii) against any and all expense  whatsoever,  as incurred (including
     the fees and disbursements of counsel chosen by Merrill Lynch),  reasonably
     incurred in  investigating,  preparing or defending against any litigation,
     or any  investigation  or  proceeding by any  governmental  agency or body,
     commenced or threatened, or any claim whatsoever based upon any such untrue
     statement or omission, or any such alleged untrue statement or omission, to
     the extent that any such expense is not paid under (i) or (ii) above;

provided,  however,  that this indemnity  agreement shall not apply to any loss,
liability,  claim,  damage or expense to the  extent  arising  out of any untrue
statement or omission or alleged  untrue  statement or omission made in reliance
upon and in conformity with written information  furnished to the Company or the
Parent,  as the case may be, by any  Initial  Purchaser  through  Merrill  Lynch
expressly for use in the Offering Memorandum (or any amendment thereto).

     (b) Indemnification of Company and Parent. Each Initial Purchaser severally
agrees to  indemnify  and hold  harmless  the  Company  and the  Parent and each
person,  if any, who  controls  the Company or the Parent  within the meaning of
Section  15 of the 1933 Act or Section  20 of the 1934 Act  against  any and all
loss, liability,  claim, damage and expense described in the indemnity contained
in subsection (a) of this Section, as incurred,  but only with respect to untrue
statements or omissions, or alleged untrue statements or omissions,  made in the
Offering  Memorandum in reliance upon and in conformity with written information
furnished  to the  Company or the  Parent,  as the case may be, by such  Initial
Purchaser through Merrill Lynch expressly for use in the Offering Memorandum.

     (c) Actions against Parties;  Notification.  Each  indemnified  party shall
give notice as promptly as reasonably  practicable to each indemnifying party of
any action  commenced  against it in  respect of which  indemnity  may be sought
hereunder, but failure to so notify an indemnifying party shall not relieve such
indemnifying  party  from  any  liability  hereunder  to  the  extent  it is not
materially  prejudiced as a result thereof and in any event shall not relieve it
from any liability which it may have otherwise than on account of this indemnity
agreement.  In the case of parties  indemnified  pursuant to Section 7(a) above,
counsel to the indemnified  parties shall be selected by Merrill Lynch,  and, in
the case of parties indemnified  pursuant to Section


                                       20
<PAGE>

7(b) above,  counsel to the indemnified parties shall be selected by the Parent.
An  indemnifying  party may participate at its own expense in the defense of any
such action; provided, however, that counsel to the indemnifying party shall not
(except  with the  consent  of the  indemnified  party)  also be  counsel to the
indemnified party. In no event shall the indemnifying parties be liable for fees
and  expenses  of more than one  counsel  (in  addition  to any  local  counsel)
separate from their own counsel for all  indemnified  parties in connection with
any  one  action  or  separate  but  similar  or  related  actions  in the  same
jurisdiction  arising out of the same general  allegations or circumstances.  In
addition,  the  indemnifying  party shall be entitled  to, to the extent that it
wishes,  jointly with any other similarly notified indemnifying party, to assume
the defense of any claim or action  brought  against an  indemnified  party with
counsel reasonably  satisfactory to the indemnified party. After notice from the
indemnifying  party to the  indemnified  party of its  election  to  assume  the
defense of such claim or action,  the indemnifying  party shall not be liable to
the  indemnified  party  under  this  Section 7 for any legal or other  expenses
subsequently  incurred by the  indemnified  party in connection with the defense
thereof other than reasonable costs of investigation;  provided,  however,  that
the  Representative  shall  have the right to employ one  counsel  to  represent
jointly it and those other Initial  Purchasers  and their  respective  officers,
employees and controlling persons who may be subject to liability arising out of
any claim in respect of which indemnity may be sought by the Initial  Purchasers
against the Company and the Parent  under this  Section 7 if, in the  reasonable
judgment  of the  Representative,  either  (i) there is an  actual or  potential
conflict  between the position of the Company and the Parent on the one hand and
the Initial Purchasers on the other hand or (ii) there may be defenses available
to it or them that are different  from or  additional to those  available to the
Company and Parent (in any of which events the Company  shall not have the right
to direct  the  defense  of such  action on  behalf of the  Representative  with
respect to such different defenses), in any of which events such reasonable fees
and expenses  shall be borne by the Company and Parent.  No  indemnifying  party
shall, without the prior written consent of the indemnified  parties,  settle or
compromise  or  consent  to  the  entry  of any  judgment  with  respect  to any
litigation,  or any  investigation or proceeding by any  governmental  agency or
body,  commenced  or  threatened,  or any claim  whatsoever  in respect of which
indemnification  or contribution could be sought under this Section or Section 8
hereof (whether or not the indemnified  parties are actual or potential  parties
thereto),  unless  such  settlement,  compromise  or  consent  (i)  includes  an
unconditional  release of each indemnified  party from all liability arising out
of such litigation, investigation, proceeding or claim and (ii) does not include
a statement as to or an admission of fault,  culpability  or a failure to act by
or on behalf of any indemnified party.

     (d) Settlement  without Consent if Failure to Reimburse.  If at any time an
indemnified  party shall have requested an  indemnifying  party to reimburse the
indemnified  party for fees and  expenses of counsel,  such  indemnifying  party
agrees that it shall be liable for any settlement of the nature  contemplated by
Section 7(a)(ii)  effected without its written consent if (i) such settlement is
entered into more than 45 days after receipt by such  indemnifying  party of the
aforesaid  request,  (ii) such indemnifying  party shall have received notice of
the terms of such  settlement  at least 30 days prior to such  settlement  being
entered into and (iii) such  indemnifying


                                       21
<PAGE>

party shall not have reimbursed such  indemnified  party in accordance with such
request prior to the date of such settlement.

     SECTION 8. Contribution.  If the indemnification  provided for in Section 7
hereof is for any reason  unavailable  to or  insufficient  to hold  harmless an
indemnified  party in respect of any  losses,  liabilities,  claims,  damages or
expenses referred to therein,  then each indemnifying  party shall contribute to
the aggregate amount of such losses,  liabilities,  claims, damages and expenses
incurred by such  indemnified  party, as incurred,  (i) in such proportion as is
appropriate  to reflect the  relative  benefits  received by the Company and the
Parent on the one hand and the  Initial  Purchasers  on the other  hand from the
offering of the Securities  pursuant to this Agreement or (ii) if the allocation
provided by clause (i) is not permitted by applicable law, in such proportion as
is appropriate to reflect not only the relative  benefits  referred to in clause
(i) above but also the  relative  fault of the Company and the Parent on the one
hand and of the  Initial  Purchasers  on the other hand in  connection  with the
statements  or omissions  which  resulted in such losses,  liabilities,  claims,
damages or expenses, as well as any other relevant equitable considerations.

     The  relative  benefits  received  by the Company and the Parent on the one
hand  and the  Initial  Purchasers  on the  other  hand in  connection  with the
offering of the Securities  pursuant to this Agreement  shall be deemed to be in
the same  respective  proportions as the total net proceeds from the offering of
the Securities  pursuant to this Agreement (before deducting  expenses) received
by the  Company  and the total  underwriting  discount  received  by the Initial
Purchasers, bear to the aggregate initial offering price of the Securities.

     The  relative  fault of the  Company and the Parent on the one hand and the
Initial  Purchasers on the other hand shall be determined by reference to, among
other things,  whether any such untrue or alleged untrue statement of a material
fact or  omission  or  alleged  omission  to state a  material  fact  relates to
information  supplied by the Company and the Parent or by the Initial Purchasers
and  the  parties'  relative  intent,  knowledge,   access  to  information  and
opportunity to correct or prevent such statement or omission.

     The Company,  the Parent and the Initial Purchasers agree that it would not
be just and equitable if  contribution  pursuant to this Section were determined
by pro rata  allocation  (even if the  Initial  Purchasers  were  treated as one
entity for such  purpose) or by any other  method of  allocation  which does not
take account of the equitable  considerations referred to above in this Section.
The  aggregate  amount of losses,  liabilities,  claims,  damages  and  expenses
incurred by an indemnified  party and referred to above in this Section shall be
deemed  to  include  any legal or other  expenses  reasonably  incurred  by such
indemnified  party  in   investigating,   preparing  or  defending  against  any
litigation,  or any  investigation or proceeding by any  governmental  agency or
body,  commenced  or  threatened,  or any claim  whatsoever  based upon any such
untrue or alleged untrue statement or omission or alleged omission.

     Notwithstanding  the provisions of this Section, no Initial Purchaser shall
be required to contribute  any amount in excess of the amount by which the total
price at which the  Securities


                                       22
<PAGE>

purchased and sold by it hereunder  exceeds the amount of any damages which such
Initial Purchaser has otherwise been required to pay by reason of such untrue or
alleged untrue statement or omission or alleged omission.

     No person  guilty of  fraudulent  misrepresentation  (within the meaning of
Section 11(f) of the 1933 Act) shall be entitled to contribution from any person
who was not guilty of such fraudulent misrepresentation.

     For purposes of this Section,  each person, if any, who controls an Initial
Purchaser  within the meaning of Section 15 of the 1933 Act or Section 20 of the
1934 Act shall have the same rights to contribution  as such Initial  Purchaser,
and each  person,  if any,  who  controls  the Company or the Parent  within the
meaning  of  Section 15 of the 1933 Act or Section 20 of the 1934 Act shall have
the same rights to  contribution  as the  Company  and the  Parent.  The Initial
Purchasers'  respective  obligations to contribute  pursuant to this Section are
several in proportion to the principal  amount of Securities  set forth opposite
their respective names in Schedule A hereto and not joint.

     SECTION 9. Representations,  Warranties and Agreements to Survive Delivery.
All representations, warranties and agreements contained in this Agreement or in
certificates of officers of the Company,  the Parent or any of their  respective
subsidiaries  submitted pursuant hereto shall remain operative and in full force
and effect,  regardless of any investigation made by or on behalf of any Initial
Purchaser  or  controlling  person,  or by or on  behalf of the  Company  or the
Parent, and shall survive delivery of the Securities to the Initial Purchasers.

     SECTION 10. Termination of Agreement.

     (a) Termination;  General. The Representative may terminate this Agreement,
by notice to the Company and the Parent,  at any time at or prior to the Closing
Time (i) if there has been,  since the time of  execution  of this  Agreement or
since the  respective  dates as of which  information  is given in the  Offering
Memorandum,  any  material  adverse  change  in  the  condition,   financial  or
otherwise,  or in the earnings or business affairs of the Company and the Parent
and their respective  subsidiaries,  in each case, considered as one enterprise,
whether or not arising in the ordinary  course of  business,  nor has there been
any developments  involving a prospective material adverse change of the Company
and the Parent and their respective  subsidiaries,  in each case,  considered as
one enterprise,  whether or not arising in the ordinary  course of business,  or
(ii) if there has occurred any material adverse change in the financial  markets
in the United States or the  international  financial  markets,  any outbreak of
hostilities  or escalation  thereof or other calamity or crisis or any change or
development   involving  a  prospective  change  in  national  or  international
political, financial or economic conditions, in each case the effect of which is
such  as  to  make  it,  in  the  reasonable  judgment  of  the  Representative,
impracticable  to market the Securities or to enforce  contracts for the sale of
the Securities,  (iii) if trading in any securities of the Company or the Parent
has been suspended or materially limited by the Commission or the New York Stock
Exchange, or if trading generally on the American Stock Exchange or the New


                                       23
<PAGE>

York Stock  Exchange or in the NASDAQ  System has been  suspended or  materially
limited,  or minimum or maximum  prices for trading have been fixed,  or maximum
ranges for prices have been required, by any of said exchanges or by such system
or by order of the Commission,  the National  Association of Securities Dealers,
Inc. or any other  governmental  authority or (iv) if a banking  moratorium  has
been declared by either Federal or New York authorities.

     (b) Liabilities.  If this Agreement is terminated pursuant to this Section,
such  termination  shall be without  liability  of any party to any other  party
except as provided in Section 4 hereof, and provided further that Sections 1, 7,
8 and 9 shall survive such termination and remain in full force and effect.

     SECTION  11.  Default by One or More of the Initial  Purchasers.  If one or
more of the Initial  Purchasers  shall fail at the Closing  Time to purchase the
Securities  which it or they are obligated to purchase under this Agreement (the
"Defaulted  Securities"),  the  Representative  shall have the right,  within 24
hours  thereafter,  to make  arrangements for one or more of the  non-defaulting
Initial Purchasers,  or any other initial  purchasers,  to purchase all, but not
less than all, of the Defaulted Securities in such amounts as may be agreed upon
and upon the terms herein set forth; if, however,  the Representative  shall not
have completed such arrangements within such 24-hour period, then:

          (a) if the number of Defaulted  Securities  does not exceed 10% of the
     aggregate  principal  amount of the  Securities to be purchased  hereunder,
     each of the non-defaulting Initial Purchasers shall be obligated, severally
     and not  jointly,  to purchase the full amount  thereof in the  proportions
     that  their  respective  underwriting  obligations  hereunder  bear  to the
     underwriting obligations of all non-defaulting Initial Purchasers, or

          (b) if the number of Defaulted Securities exceeds 10% of the aggregate
     principal  amount  of  the  Securities  to  be  purchased  hereunder,  this
     Agreement   shall   terminate   without   liability  on  the  part  of  any
     non-defaulting Initial Purchaser.

     No action  taken  pursuant to this  Section  shall  relieve any  defaulting
Initial Purchaser from liability in respect of its default.

     In the event of any such default which does not result in a termination  of
this Agreement, either the Representative or the Company shall have the right to
postpone  the  Closing  Time for a period not  exceeding  seven days in order to
effect any required changes in the Offering Memorandum or in any other documents
or  arrangements.  As used herein,  the term  "Initial  Purchaser"  includes any
person substituted for an Initial Purchaser under this Section.

     SECTION 12. Notices. All notices and other  communications  hereunder shall
be in  writing  and  shall be  deemed  to have  been  duly  given if  mailed  or
transmitted  by any standard form of  telecommunication.  Notices to the Initial
Purchasers  shall  be  directed  to the  Representative  at North  Tower,  World
Financial  Center,  New  York,  New York  10281,  attention  of John  Thorndike,
Managing  Director,  notices to the  Company  shall be  directed  to it 222 West


                                       24
<PAGE>

Washington Avenue, Madison,  Wisconsin 53703, attention of Edward M. Gleason and
notices to the Parent  shall be  directed to it at 222 West  Washington  Avenue,
Madison, Wisconsin 53703, attention of Edward M. Gleason.

     SECTION 13.  Parties.  This Agreement  shall inure to the benefit of and be
binding  upon  the  Initial  Purchasers,  the  Company,  the  Parent  and  their
respective  successors.  Nothing  expressed or  mentioned  in this  Agreement is
intended or shall be construed to give any person,  firm or  corporation,  other
than the  Initial  Purchasers,  the  Company,  the Parent  and their  respective
successors and the controlling persons and officers and directors referred to in
Sections  7 and 8 and  their  heirs  and  legal  representatives,  any  legal or
equitable  right,  remedy or claim under or in respect of this  Agreement or any
provision  herein  contained.  This  Agreement and all conditions and provisions
hereof are  intended  to be for the sole and  exclusive  benefit of the  Initial
Purchasers,  the Company, the Parent and their respective  successors,  and said
controlling  persons  and  officers  and  directors  and  their  heirs and legal
representatives, and for the benefit of no other person, firm or corporation. No
purchaser  of  Securities  from any  Initial  Purchaser  shall be deemed to be a
successor by reason merely of such purchase.

     SECTION 14. GOVERNING LAW AND TIME. THIS AGREEMENT SHALL BE GOVERNED BY AND
CONSTRUED  IN  ACCORDANCE  WITH THE LAWS OF THE  STATE OF NEW  YORK.  EXCEPT  AS
OTHERWISE SET FORTH HEREIN, SPECIFIED TIMES OF DAY REFER TO NEW YORK CITY TIME.

     SECTION 15. Effect of Headings. The Article and Section headings herein and
the  Table of  Contents  are for  convenience  only and  shall  not  affect  the
construction hereof.



                                       25
<PAGE>


     If the foregoing is in accordance with your understanding of our agreement,
please  sign and  return to the  Company  and the Parent a  counterpart  hereof,
whereupon this instrument,  along with all  counterparts,  will become a binding
agreement  between  the  Initial  Purchasers,  the  Company  and the  Parent  in
accordance with its terms.

                                      Very truly yours,

                                      ALLIANT ENERGY RESOURCES, INC.


                                      By  /s/ Edward M. Gleason
                                          -------------------------------------
                                          Edward M. Gleason
                                          Vice President - Treasurer and
                                          Corporate Secretary


                                      ALLIANT ENERGY CORPORATION


                                      By  /s/ Edward M. Gleason
                                          -------------------------------------
                                          Edward M. Gleason
                                          Vice President - Treasurer and
                                          Corporate Secretary


CONFIRMED AND ACCEPTED,
 as of the date first above written:


MERRILL LYNCH & CO.
MERRILL LYNCH, PIERCE, FENNER & SMITH
          INCORPORATED
MORGAN STANLEY & CO. INCORPORATED
SALOMON SMITH BARNEY INC.
ABN AMRO INCORPORATED
BARCLAYS CAPITAL INC.

By: MERRILL LYNCH, PIERCE, FENNER & SMITH
INCORPORATED


     By: /s/ Joe R
         ------------------------------
         Authorized Signatory

     For itself and as Representative  of the other Initial  Purchasers named in
Schedule A hereto.


                                       26
<PAGE>

                                   SCHEDULE A


                       Name of Initial Purchaser             Principal
                                                             Amount of
                                                             Securities
                                                             ----------

Merrill Lynch, Pierce, Fenner & Smith Incorporated........  $125,000,000
Morgan Stanley & Co. Incorporated.........................    50,000,000
Salomon Smith Barney Inc..................................    50,000,000
ABN Amro Incorporated.....................................    12,500,000
Barclays Capital Inc......................................    12,000,000
                                                          ---------------
Total.....................................................  $250,000,000
                                                          ===============



                                   Sch A - 1

<PAGE>

                                   SCHEDULE B

                         ALLIANT ENERGY RESOURCES, INC.
                                  $250,000,000
                          7 3/8 % SENIOR NOTES DUE 2009

                    UNCONDITIONALLY GUARANTEED AS TO PAYMENT
                 OF PRINCIPAL, PREMIUM, IF ANY, AND INTEREST BY
                           ALLIANT ENERGY CORPORATION


     1. The initial public  offering price of the Securities  shall be 99.45% of
the principal amount thereof,  plus accrued  interest,  if any, from the date of
issuance.

     2.  The  purchase  price  to be  paid  by the  Initial  Purchasers  for the
Securities shall be 98.80% of the principal amount thereof.

     3. The interest rate on the Securities shall be 7 3/8% per annum.

     4. The Notes will be redeemable at the Company's option in whole or in part
at any  time,  on at least 30 days'  but not more  than 60 days'  prior  written
notice mailed to the  registered  holders of the Notes,  at a price equal to the
greater of (i) 100% of the principal amount of the Notes being redeemed and (ii)
the sum of the  present  values  of the  principal  amount  of the  Notes  to be
redeemed and the remaining  scheduled payments of interest on the Notes from the
redemption date to November 9, 2009 discounted from their  respective  scheduled
payment  dates to the  redemption  date  semi-annually  (assuming a 360-day year
consisting  of twelve  30-day  months) at a discount  rate equal to the Treasury
Yield plus 20 basis points, plus accrued interest on the Notes to the redemption
date.

     "Treasury  Yield" means,  with respect to any  redemption  date, the annual
rate equal to the  semi-annual  equivalent  yield to maturity of the  Comparable
Treasury Issue, assuming 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.

     "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 the Notes.


                                    Sch B - 1
<PAGE>

     "Comparable  Treasury Price" means, with respect to any date of redemption,
(1) the average of the bid and asked prices for the  Comparable  Treasury  Issue
(expressed in each case as a percentage  of its  principal  amount) on the third
business  day  preceding  the  redemption  date,  as  set  forth  in  the  daily
statistical  release (or any successor release) published by the Federal Reserve
Bank of New  York  and  designated  "Composite  3:30  p.m.  Quotations  for U.S.
Government Securities" or (ii) if such release (or any successor release) is not
published or does not contain  such prices on the business day in question,  the
Reference Treasury Dealer Quotation for the redemption date.

     "Independent  Investment  Banker" means an independent  investment  banking
institution  of  national  standing  appointed  by the  Company  and  reasonably
acceptable to the Trustee.

     "Reference  Treasury Dealer Quotation" means, with respect to the Reference
Treasury Dealer and redemption date, the average,  as determined by the Company,
of the bid and asked prices for the Comparable Treasury Issue (expressed in each
case as a  percentage  of its  principal  amount  and  quoted in  writing to the
Company by the Reference  Treasury Dealer at 5:00 p.m. on the third business day
preceding the redemption date).

     "Reference  Treasury  Dealer"  means a  primary  United  States  government
securities  dealer in New York City  appointed  by the  Company  and  reasonably
acceptable to the Trustee.



                                    Sch B - 2

<PAGE>

                                   SCHEDULE C

                              List of Subsidiaries


Alliant Energy Investments, Inc.
Alliant Energy International, Inc.
Alliant Energy Industrial Services, Inc.
Whiting Petroleum Corporation





                                    Sch C - 1

<PAGE>
                                                                       Exhibit A

                      FORM OF OPINION OF COMPANY'S COUNSEL
                           TO BE DELIVERED PURSUANT TO
                                  SECTION 5(a)


     (i) The Company is validly existing as a corporation  under the laws of the
State of Wisconsin.

     (ii) The  Company  has  corporate  power and  authority  to own,  lease and
operate its  properties and to conduct its business as described in the Offering
Memorandum  and to enter into and perform  its  obligations  under the  Purchase
Agreement.

     (iii) The Company is duly  qualified as a foreign  corporation  to transact
business and is in good  standing in each  domestic  jurisdiction  in which such
qualification  is  required,  whether by reason of the  ownership  or leasing of
property or the conduct of  business,  except where the failure so to qualify or
to be in good standing would not result in a Material Adverse Effect.

     (iv) The shares of issued and outstanding capital stock of the Company have
been duly  authorized and validly  issued and are fully paid and  non-assessable
(except  for  certain  statutory  liabilities  that may be  imposed  by  Section
180.0622(b) of the Wisconsin  Business  Corporation  Law (the "WBCL") for unpaid
employee  wages);  and to the  best of our  knowledge,  none of the  outstanding
shares of capital stock of the Company was issued in violation of the preemptive
or other similar rights of any securityholder of the Company.

     (v) Each Designated  Subsidiary is validly existing as a corporation  under
the laws of the  jurisdiction  of its  incorporation,  has  corporate  power and
authority to own,  lease and operate its  properties and to conduct its business
as  described  in the  Offering  Memorandum  and is duly  qualified as a foreign
corporation  to  transact  business  and is in good  standing  in each  domestic
jurisdiction in which such  qualification is required,  whether by reason of the
ownership  or leasing of property or the conduct of  business,  except where the
failure so to qualify or to be in good  standing  would not result in a Material
Adverse Effect;  and, to the best of our knowledge and  information,  all of the
issued and outstanding  capital stock of each Designated  Subsidiary is owned by
the Company, directly or through subsidiaries.

     (vi) The Company has all requisite corporate power and authority to execute
and deliver the Purchase  Agreement and to perform its  obligations  thereunder.
The Purchase  Agreement has been duly authorized,  executed and delivered by the
Company.

     (vii) The Indenture has been duly authorized, executed and delivered by the
Company and (assuming the due  authorization,  execution and delivery thereof by
the  Trustee)  constitutes  a  valid  and  binding  agreement  of  the  Company,
enforceable  against the Company in accordance


                                    A - 1
<PAGE>

with  its  terms,  except  (A) as the  enforcement  thereof  may be  limited  by
bankruptcy,  insolvency  (including,  without  limitation,  all laws relating to
fraudulent transfers), reorganization, moratorium or other similar laws relating
to or affecting  enforcement of creditors' rights generally,  (B) as enforcement
thereof  is  subject  to general  principles  of equity  (regardless  of whether
enforcement  is  considered  in a  proceeding  in  equity  or at law) and (C) as
enforcement of certain provisions thereof (specifically,  provisions prohibiting
waivers or  modifications  by conduct of the  parties or  requiring  waivers and
modifications  to be in writing,  obligations to pay  attorneys'  fees and other
costs and  expenses  that are not  reasonable,  and  rights  to  indemnification
against the  consequences of a party's own misconduct or to the extent deemed to
be  against  public  policy)  may be  limited  under  the  laws of the  State of
Wisconsin,  but the inclusion of such provisions does not affect the validity of
the Indenture,  and the Indenture  contains legally adequate  provisions for the
realization of the principal legal rights and benefits offered thereby.

     (viii) The Supplemental  Indenture has been duly  authorized,  executed and
delivered by the Company and  (assuming  the due  authorization,  execution  and
delivery  thereof by the Trustee)  constitutes a valid and binding  agreement of
the  Company,  enforceable  against  the Company in  accordance  with its terms,
except (A) as the enforcement  thereof may be limited by bankruptcy,  insolvency
(including,  without  limitation,  all laws relating to  fraudulent  transfers),
reorganization,  moratorium  or other  similar  laws  relating  to or  affecting
enforcement  of  creditors'  rights  generally,  (B) as  enforcement  thereof is
subject to general  principles of equity  (regardless of whether  enforcement is
considered  in a  proceeding  in  equity  or at law) and (C) as  enforcement  of
certain  provisions thereof  (specifically,  provisions  prohibiting  waivers or
modifications by conduct of the parties or requiring  waivers and  modifications
to be in  writing,  obligations  to pay  attorneys'  fees and  other  costs  and
expenses  that are not  reasonable,  and rights to  indemnification  against the
consequences  of a party's own  misconduct or to the extent deemed to be against
public policy) may be limited under the laws of the State of Wisconsin,  but the
inclusion of such  provisions  does not affect the validity of the  Supplemental
Indenture,  and the Supplemental  Indenture contains legally adequate provisions
for the realization of the principal legal rights and benefits offered thereby.

     (ix) The Registration  Rights Agreement has been duly authorized,  executed
and delivered by the Company and (assuming the due authorization,  execution and
delivery  thereof by the  Initial  Purchasers)  constitutes  a valid and binding
agreement of the Company, enforceable against the Company in accordance with its
terms,  except (A) as the  enforcement  thereof  may be  limited by  bankruptcy,
insolvency  (including,  without  limitation,  all laws  relating to  fraudulent
transfers),  reorganization,  moratorium  or other  similar laws  relating to or
affecting enforcement of creditors' rights generally, (B) as enforcement thereof
is subject to general principles of equity (regardless of whether enforcement is
considered in a proceeding in equity or at law),  (C) as  enforcement of certain
provisions   thereof   (specifically,    provisions   prohibiting   waivers   or
modifications by conduct of the parties or requiring  waivers and  modifications
to be in  writing,


                                    A - 2
<PAGE>

obligations  to pay  attorneys'  fees and other costs and expenses  that are not
reasonable,  and rights to indemnification against the consequences of a party's
own  misconduct  or to the extent  deemed to be against  public  policy)  may be
limited  under the laws of the State of  Wisconsin,  but the  inclusion  of such
provisions does not affect the validity of the  Registration  Rights  Agreement,
and the Registration  Rights Agreement  contain legally adequate  provisions for
the realization of the principal  legal rights and benefits  offered thereby and
(D) with respect to the indemnification and contributions  provisions thereof as
to which we need express no opinion.

     (x) The Securities are in the form contemplated by the Indenture, have been
duly authorized by the Company and, when executed by the Company,  guaranteed by
the Parent and  authenticated  by the  Trustee  in the  manner  provided  in the
Indenture  (assuming  the  due  authorization,  execution  and  delivery  of the
Indenture  by the  Trustee)  and issued  and  delivered  against  payment of the
purchase price  therefor will  constitute  valid and binding  obligations of the
Company,  enforceable against the Company in accordance with their terms, except
(A)  as the  enforcement  thereof  may  be  limited  by  bankruptcy,  insolvency
(including,  without  limitation,  all laws relating to  fraudulent  transfers),
reorganization,  moratorium  or other  similar  laws  relating  to or  affecting
enforcement  of  creditor's  rights  generally,  (B) as  enforcement  thereof is
subject to general  principles of equity  (regardless of whether  enforcement is
considered  in a  proceeding  in equity or at law),  and (C) as  enforcement  of
certain  provisions thereof  (specifically,  provisions  prohibiting  waivers or
modifications by conduct of the parties or requiring  waivers and  modifications
to be in  writing,  obligations  to pay  attorneys'  fees and  other  costs  and
expenses  that are not  reasonable,  and rights to  indemnification  against the
consequences  of a party's own  misconduct or to the extent deemed to be against
public policy) may be limited under the laws of the State of Wisconsin,  but the
inclusion of such provisions does not affect the validity of the Securities, and
the Securities  contain legally  adequate  provisions for the realization of the
principal legal rights and benefits offered thereby, and will be entitled to the
benefits of the Indenture.

     (xi) The  Securities  and the Indenture  conform as to legal matters in all
material  respects  to  the  descriptions  thereof  contained  in  the  Offering
Memorandum.

     (xii) To the  best of our  knowledge  and  based  on our  discussions  with
officers of the Company,  there is not pending or threatened  any action,  suit,
proceeding, inquiry or investigation,  to which the Company or any subsidiary is
a party,  or to which the property of the Company or any  subsidiary  thereof is
subject,  before or brought by any court or governmental  agency or body,  which
might  reasonably be expected to result in a Material  Adverse Effect,  or which
might  reasonably be expected to materially and adversely  affect the properties
or assets thereof or the  consummation of the  transactions  contemplated in the
Purchase  Agreement  or the  performance  by  the  Company  of  its  obligations
thereunder or the transactions contemplated by the Offering Memorandum;


                                    A - 3
<PAGE>


     (xiii) The information in the Offering Memorandum under the heading "United
States  Federal  Income Tax  Considerations"  to the extent that it  constitutes
matters of law,  summaries  of legal  matters,  or legal  conclusions,  has been
reviewed by us, is correct in all material respects.

     (xiv) All  descriptions  in the Offering  Memorandum of contracts and other
documents to which the Company or any of its  subsidiaries  are a party,  to the
extent that they describe legal matters, are accurate in all material respects.

     (xv) To the best of our  knowledge  and  based  upon our  discussions  with
officers  of the  Company,  neither  the  Company  nor  any  of  the  Designated
Subsidiaries  is in  violation  of its charter or by-laws and, no default by the
Company or any of the Designated  Subsidiaries  exists in the due performance or
observance  of  any  material  obligation,   agreement,  covenant  or  condition
contained in any contract,  indenture,  mortgage, loan agreement, note, lease or
other  agreement or instrument  that is described or referred to in the Offering
Memorandum or incorporated by reference therein.

     (xvi) No filing with, or authorization,  approval, consent, license, order,
registration, qualification or decree of, any court or governmental authority or
agency,  domestic or foreign  (other than such as have already been obtained and
such as may be  required  under the  applicable  securities  laws of the various
jurisdictions  in which the Securities  will be offered or sold and the 1935 Act
(solely  with  respect  to  filings  required  to be made  with  the  Commission
subsequent to the Closing Time) or by the 1933 Act or the 1939 Act in connection
with the exchange offer as contemplated by the Registration Rights Agreement, as
to which we need express no opinion) is necessary or required in connection with
the due  authorization,  execution and delivery of the Purchase Agreement or the
due execution,  delivery or performance of the Registration Rights Agreement and
the Indenture by the Company or for the offering,  issuance, sale or delivery of
the Securities to the Initial Purchasers or the resale by the Initial Purchasers
in accordance with the terms of the Purchase Agreement.

     (xvii) It is not necessary in connection with the offer,  sale and delivery
of the  Securities to the Initial  Purchasers and to each  Subsequent  Purchaser
(assuming  the accuracy of the  representations  and  warranties  of the Initial
Purchasers and each  Subsequent  Purchaser  with respect  thereto) in the manner
contemplated by the Purchase  Agreement and the Offering  Memorandum to register
the  Securities  under the 1933 Act or to qualify the Indenture  under the Trust
Indenture Act.

     (xviii) The execution,  delivery and performance of the Purchase Agreement,
the DTC Agreement,  the Indenture,  the  Registration  Rights  Agreement and the
Securities and the consummation of the transactions contemplated in the Purchase
Agreement and in the Offering Memorandum (including the use of the proceeds from
the sale of the  Securities  as described in


                                    A - 4
<PAGE>

the Offering  Memorandum  under the caption "Use Of Proceeds") and compliance by
the Company with its obligations  under the Purchase  Agreement,  the Indenture,
the  Registration  Rights  Agreement  and the  Securities  do not and will  not,
whether with or without the giving of notice or lapse of time or both,  conflict
with or  constitute  a breach of, or default or  Repayment  Event (as defined in
Section 1(a)(xiv) of the Purchase  Agreement) under or result in the creation or
imposition of any lien, charge or encumbrance upon any property or assets of the
Company  or  any  Designated  Subsidiary  pursuant  to any  material  contracts,
indentures,  mortgages, deeds of trust, loan or credit agreements, notes, leases
or any other agreements or instruments set forth on Schedule A hereto,  to which
the Company or any of the Designated  Subsidiaries  is a party or by which it or
any of them may be  bound,  or to which  any of the  property  or  assets of the
Company,  or any Designated  Subsidiary is subject  (except for such  conflicts,
breaches  or defaults or liens,  charges or  encumbrances  that would not have a
Material  Adverse  Effect),  nor will such action result in any violation of the
provisions  of the  charter or by-laws of the  Company or any of the  Designated
Subsidiaries, or any applicable law, statute, rule, regulation, judgment, order,
writ or decree, known to us, of any U.S. government,  government instrumentality
or  court,  having  jurisdiction  over  the  Company  or any  of the  Designated
Subsidiaries or any of their respective properties, assets or operations.

     (xix) The Company is not an "investment  company" or an entity "controlled"
by an "investment company," as such terms are defined in the 1940 Act.

     (xx) The Securities satisfy the eligibility requirements of Rule 144A(d)(3)
under the Securities Act.

     (xxi) The  issuance of the  Securities  complies,  and the  issuance of the
Exchange  Securities as contemplated in the  Registration  Rights Agreement will
comply with the  Securities  and  Exchange  Commission's  Release No.  35-27069,
70-9455 dated as of August 26, 1999.

     Nothing has come to our  attention  that would lead us to believe  that the
Offering Memorandum or any amendment or supplement thereto (except for financial
statements  and schedules and other  financial or  statistical  data included or
incorporated by reference  therein or omitted therefrom as to which we need make
no statement),  at the time the Offering  Memorandum was issued, at the time any
such amended or  supplemented  Offering  Memorandum was issued or at the Closing
Time,  included or includes an untrue statement of a material fact or omitted or
omits to  state a  material  fact  necessary  in  order  to make the  statements
therein,  in the light of the  circumstances  under  which they were  made,  not
misleading.

     In rendering  this opinion,  we relied as to matters of fact (but not as to
legal  conclusions),  to  the  extent  we  deemed  proper,  on  certificates  of
responsible officers of the Company and public officials.



                                    A - 5
<PAGE>

             SCHEDULE A TO THE FORM OF OPINION OF COMPANY'S COUNSEL



1.   364-Day Credit  Agreement dated as of October 18, 1999 among Alliant Energy
     Resources,  Inc., the Banks named therein, Banc One Capital Markets,  Inc.,
     Citibank,  N.A., Salomon Smith Barney, Inc., Mellon Bank, N.A. and Wachovia
     Bank N.A.

2.   3-Year Credit  Agreement dated as of October 20, 1997 among IES Diversified
     Inc. (n/k/a Alliant Energy Resources, Inc.), the Banks named therein, First
     Chicago Capital Markets, Inc. and Citibank, N.A.




                                    A - 6
<PAGE>

                                                                       Exhibit B

                       FORM OF OPINION OF PARENT'S COUNSEL
                           TO BE DELIVERED PURSUANT TO
                                  SECTION 5(a)

     (i) The Parent is validly  existing as a corporation  under the laws of the
State of Wisconsin.

     (ii) The Parent has corporate power and authority to own, lease and operate
its  properties  and to  conduct  its  business  as  described  in the  Offering
Memorandum  and to enter into and perform  its  obligations  under the  Purchase
Agreement.

     (iii) The Parent has all requisite corporate power and authority to execute
and deliver the Purchase  Agreement and to perform its  obligations  thereunder.
The Purchase  Agreement has been duly authorized,  executed and delivered by the
Parent.

     (iv) The Indenture has been duly authorized,  executed and delivered by the
Parent and (assuming the due  authorization,  execution and delivery  thereof by
the  Trustee)   constitutes  a  valid  and  binding  agreement  of  the  Parent,
enforceable  against the Parent in accordance with its terms,  except (A) as the
enforcement thereof may be limited by bankruptcy, insolvency (including, without
limitation,   all  laws  relating  to  fraudulent  transfers),   reorganization,
moratorium  or other  similar  laws  relating  to or  affecting  enforcement  of
creditors'  rights generally,  (B) as enforcement  thereof is subject to general
principles  of equity  (regardless  of whether  enforcement  is  considered in a
proceeding  in equity or at law) and (C) as  enforcement  of certain  provisions
thereof  (specifically,  provisions  prohibiting  waivers  or  modifications  by
conduct of the parties or requiring  waivers and modifications to be in writing,
obligations  to pay  attorneys'  fees and other costs and expenses  that are not
reasonable,  and rights to indemnification against the consequences of a party's
own  misconduct  or to the extent  deemed to be against  public  policy)  may be
limited  under the laws of the State of  Wisconsin,  but the  inclusion  of such
provisions  does not affect the  validity of the  Indenture,  and the  Indenture
contains legally adequate  provisions for the realization of the principal legal
rights and benefits offered thereby.

     (v) The  Supplemental  Indenture  has been duly  authorized,  executed  and
delivered  by the Parent and  (assuming  the due  authorization,  execution  and
delivery  thereof by the Trustee)  constitutes a valid and binding  agreement of
the Parent,  enforceable against the Parent in accordance with its terms, except
(A)  as the  enforcement  thereof  may  be  limited  by  bankruptcy,  insolvency
(including,  without  limitation,  all laws relating to  fraudulent  transfers),
reorganization,  moratorium  or other  similar  laws  relating  to or  affecting
enforcement  of  creditors'  rights  generally,  (B) as  enforcement  thereof is
subject to general  principles of equity  (regardless of whether  enforcement is
considered  in a  proceeding  in  equity  or at law) and (C) as  enforcement


                                    B - 1
<PAGE>

of certain provisions thereof  (specifically,  provisions prohibiting waivers or
modifications by conduct of the parties or requiring  waivers and  modifications
to be in  writing,  obligations  to pay  attorneys'  fees and  other  costs  and
expenses  that are not  reasonable,  and rights to  indemnification  against the
consequences  of a party's own  misconduct or to the extent deemed to be against
public policy) may be limited under the laws of the State of Wisconsin,  but the
inclusion of such  provisions  does not affect the validity of the  Supplemental
Indenture,  and the Supplemental  Indenture contains legally adequate provisions
for the realization of the principal legal rights and benefits offered thereby.

     (vi) The Registration  Rights Agreement has been duly authorized,  executed
and delivered by the Parent and (assuming the due  authorization,  execution and
delivery  thereof by the  Initial  Purchasers)  constitutes  a valid and binding
agreement of the Parent,  enforceable  against the Parent in accordance with its
terms,  except (A) as the  enforcement  thereof  may be  limited by  bankruptcy,
insolvency  (including,  without  limitation,  all laws  relating to  fraudulent
transfers),  reorganization,  moratorium  or other  similar laws  relating to or
affecting enforcement of creditors' rights generally, (B) as enforcement thereof
is subject to general principles of equity (regardless of whether enforcement is
considered in a proceeding in equity or at law),  (C) as  enforcement of certain
provisions   thereof   (specifically,    provisions   prohibiting   waivers   or
modifications by conduct of the parties or requiring  waivers and  modifications
to be in  writing,  obligations  to pay  attorneys'  fees and  other  costs  and
expenses  that are not  reasonable,  and rights to  indemnification  against the
consequences  of a party's own  misconduct or to the extent deemed to be against
public policy) may be limited under the laws of the State of Wisconsin,  but the
inclusion of such  provisions  does not affect the validity of the  Registration
Rights  Agreement,  and  the  Registration  Rights  Agreement  contains  legally
adequate  provisions  for the  realization  of the  principal  legal  rights and
benefits  offered  thereby  and (D)  with  respect  to the  indemnification  and
contributions provisions thereof as to which we need express no opinion.

     (vii) The Guarantees are in the form  contemplated  by the Indenture,  have
been duly  authorized  by the  Parent  and,  when  executed  by the  Parent  and
authenticated  by the Trustee in the manner provided in the Indenture  (assuming
the due  authorization,  execution and delivery of the Indenture by the Trustee)
and issued and delivered  against  payment of the purchase  price  therefor will
constitute valid and binding obligations of the Parent,  enforceable against the
Parent in accordance with their terms, except (A) as the enforcement thereof may
be limited by bankruptcy,  insolvency (including,  without limitation,  all laws
relating to fraudulent transfers),  reorganization,  moratorium or other similar
laws relating to or affecting enforcement of creditors' rights generally, (B) as
enforcement  thereof is subject to general  principles of equity  (regardless of
whether  enforcement  is considered in a proceeding in equity or at law) and (C)
as  enforcement  of  certain   provisions  thereof   (specifically,   provisions
prohibiting  waivers or  modifications  by conduct of the  parties or  requiring
waivers and  modifications to be in writing,  obligations to pay attorneys' fees
and  other  costs  and  expenses  that  are  not   reasonable,   and  rights


                                    B - 2
<PAGE>

to  indemnification  against the  consequences of a party's own misconduct or to
the extent deemed to be against  public policy) may be limited under the laws of
the State of Wisconsin, but the inclusion of such provisions does not affect the
validity  of  the  Guarantees,  and  the  Guarantees  contain  legally  adequate
provisions  for the  realization  of the  principal  legal  rights and  benefits
offered thereby, and will be entitled to the benefits of the Indenture.

     (viii) The documents  incorporated by reference in the Offering  Memorandum
(other than the financial statements,  statistical data and supporting schedules
therein, as to which no opinion need be rendered), when they were filed with the
Commission complied as to form in all material respects with the requirements of
the 1934 Act and the rules and regulations of the Commission thereunder.

     (ix)  To the  best of our  knowledge  and  based  on our  discussions  with
officers of the Company,  there is not pending or threatened  any action,  suit,
proceeding, inquiry or investigation, to which the Parent or any subsidiary is a
party,  or to which the  property  of the  Parent or any  subsidiary  thereof is
subject,  before or brought by any court or governmental  agency or body,  which
might  reasonably be expected to result in a Material  Adverse Effect,  or which
might  reasonably be expected to materially and adversely  affect the properties
or assets thereof or the  consummation of the  transactions  contemplated in the
Purchase  Agreement  or  the  performance  by  the  Parent  of  its  obligations
thereunder or the transactions contemplated by the Offering Memorandum.

     (x) To the  best of our  knowledge  and  based  upon our  discussions  with
officers of the Company,  neither the Parent nor IES Utilities  Inc.,  Wisconsin
Power and Light Company and Interstate Power Company (each a "Parent Significant
Subsidiary")  is in violation  of its charter or by-laws,  and no default by the
Parent or any Parent  Significant  Subsidiary  exists in the due  performance or
observance  of  any  material  obligation,   agreement,  covenant  or  condition
contained in any contract,  indenture,  mortgage, loan agreement, note, lease or
other  agreement or instrument  that is described or referred to in the Offering
Memorandum or incorporated by reference therein.

     (xi) No filing with, or authorization,  approval,  consent, license, order,
registration, qualification or decree of, any court or governmental authority or
agency,  domestic  or  foreign  (other  than such as may be  required  under the
applicable  securities laws of the various jurisdictions in which the Guarantees
will be offered or sold and under the 1935 Act (solely  with  respect to filings
required to be made with the Commission  subsequent to the Closing Time),  or by
the  1933  Act  or the  1939  Act in  connection  with  the  exchange  offer  as
contemplated by the Registration  Rights Agreement,  as to which we need express
no opinion) is necessary or required in connection  with the due  authorization,
execution and delivery of the Purchase Agreement or the due execution,  delivery
or performance  of the  Registration  Rights  Agreement and the


                                    B - 3
<PAGE>

Indenture by the Parent or for the offering,  issuance,  sale or delivery of the
Guarantees to the Initial  Purchasers or the resale by the Initial Purchasers in
accordance with the terms of the Purchase Agreement.

     (xii) The execution,  delivery and  performance of the Purchase  Agreement,
the DTC Agreement,  the Indenture,  the  Registration  Rights  Agreement and the
Securities and the consummation of the transactions contemplated in the Purchase
Agreement and in the Offering Memorandum (including the use of the proceeds from
the sale of the  Securities  as described in the Offering  Memorandum  under the
caption "Use Of Proceeds")  and  compliance  by the Parent with its  obligations
under the Purchase Agreement,  the Indenture,  the Registration Rights Agreement
and the  Securities  (including  the  related  guarantees)  do not and will not,
whether with or without the giving of notice or lapse of time or both,  conflict
with or  constitute  a breach of, or default or  Repayment  Event (as defined in
Section 1(a)(xiv) of the Purchase  Agreement) under or result in the creation or
imposition of any lien, charge or encumbrance upon any property or assets of the
Parent or any Parent  Significant  Subsidiary  thereof  pursuant to any material
contracts,  indentures,  mortgages,  deeds of trust, loan or credit  agreements,
notes,  leases or any other  agreements or  instruments  set forth on Schedule A
hereto, to which the Parent or any Parent  Significant  Subsidiary is a party or
by which it or any of them may be  bound,  or to which  any of the  property  or
assets of the Parent or any Parent Significant Subsidiary is subject (except for
such  conflicts,  breaches or defaults or liens,  charges or  encumbrances  that
would not have a Material  Adverse  Effect),  nor will such action result in any
violation  of the  provisions  of the  charter  or  by-laws of the Parent or any
Parent Significant Subsidiary, or any applicable law, statute, rule, regulation,
judgment, order, writ or decree, known to us, of any U.S. government, government
instrumentality  or court,  having  jurisdiction  over the  Parent or any Parent
Significant  Subsidiary  or  any  of  their  respective  properties,  assets  or
operations.

     (xiii)  The  Guarantees  satisfy  the  eligibility   requirements  of  Rule
144A(d)(3) under the Securities Act.

     (xiv) The  issuance of the  Guarantees  complies,  and the  issuance of the
guarantees   related  to  the  Exchange   Securities  as   contemplated  in  the
Registration  Rights  Agreement  will comply,  with the  Securities and Exchange
Commission's Release No. 35-27069, 70-9455 dated as of August 26, 1999.

     Nothing has come to our  attention  that would lead us to believe  that the
Offering Memorandum or any amendment or supplement thereto (except for financial
statements  and schedules and other  financial or  statistical  data included or
incorporated by reference  therein or omitted therefrom as to which we need make
no statement),  at the time the Offering  Memorandum was issued, at the time any
such amended or  supplemented  Offering  Memorandum was issued or at the Closing
Time,  included or includes an untrue statement of a


                                    B - 4
<PAGE>

material fact or omitted or omits to state a material fact necessary in order to
make the statements  therein, in the light of the circumstances under which they
were made, not misleading.

     In rendering  this opinion,  we relied as to matters of fact (but not as to
legal  conclusions),  to  the  extent  we  deemed  proper,  on  certificates  of
responsible officers of the Parent and public officials.




                                    B - 5
<PAGE>

              SCHEDULE A TO THE FORM OF OPINION OF PARENT'S COUNSEL


1.   Indenture  of  Mortgage  or Deed of Trust  dated  August 1,  1941,  between
     Wisconsin  Power and Light  Company  ("WP&L")  and  First  Wisconsin  Trust
     Company and George B. Luhman, as Trustees.

2.   Rights  Agreement,  dated  January  20,  1999,  between  Interstate  Energy
     Corporation and Firstar Bank Milwaukee, N.A.

3.   Indenture,  dated as of June 20,  1997,  between  WP&L  and  Firstar  Trust
     Company, as Trustee, relating to debt securities.

4.   Officers'  Certificate,  dated  as  of  June  25,  1997,  creating  the  7%
     debentures due June 15, 2007 of WP&L.

5.   Officers'  Certificate,  dated as of October 27,  1998,  creating the 5.70%
     debentures due October 15, 2008 of WP&L.

6.   Indenture  of Mortgage  and Deed of Trust,  dated as of  September 1, 1993,
     between IES Utilities Inc.  (formerly Iowa Electric Light and Power Company
     ("IE"))  and  the  First  National  Bank  of  Chicago,  as  Trustee  ("1993
     Indenture").

7.   Supplemental Indentures to 1993 Indenture; First through Fifth.

8.   Indenture  of  Mortgage  and Deed of Trust,  dated as of  August  1,  1940,
     between IES Utilities  Inc.  (formerly  IE) and the First  National Bank of
     Chicago, Trustee ("1940 Indenture").

9.   Supplemental Indentures to the 1940 Indenture; First through Sixty-Third.

10.  Indenture  or Deed of Trust  dated as of  February  1,  1923,  between  IES
     Utilities Inc.  (successor to Iowa Southern  Utilities  Company ("IS") as a
     result of the  merger of IS and IE) and The  Northern  Trust  Company  (The
     First National Bank of Chicago,  successor) and Harold H. Rockwell (Richard
     D. Manella, successor), as Trustees ("1923 Indenture").

11.  Supplemental  Indentures to the 1923 Indenture;  24 Supplemental Indentures
     dated May 1, 1940 through December 1, 1994.

12.  Indenture  (for  Unsecured  Subordinated  Debt  Securities),  dated  as  of
     December 1, 1995, between IES Utilities Inc. and the First National Bank of
     Chicago, as Trustee.


                                     B - 6
<PAGE>

13.  Indenture  (for Senior  Unsecured Debt  Securities),  dated as of August 1,
     1997, between IES Utilities Inc. and the First National Bank of Chicago, as
     Trustee.

14.  The Original through the Nineteenth  Supplemental  Indentures of Interstate
     Power  Company to The Chase  Manhattan  Bank and Carl E.  Buckley and C. J.
     Heinzelmann,  as Trustees,  dated January 1, 1948 securing  First  Mortgage
     Bonds.

15.  Twentieth  Supplemental  Indenture of Interstate Power Company to The Chase
     Manhattan Bank and C.J. Heinzelmann, as Trustees, dated May 15, 1993.

16.  Second Amended and Restated Credit Agreement dated as of September 17, 1987
     between  Arnold Fuel,  Inc. and the First  National Bank of Chicago and the
     Amended and Restated  Consent and Agreement  dated as of September 17, 1987
     by IES Utilities Inc.



                                      B-7


                                                                  Execution Copy

================================================================================



                          REGISTRATION RIGHTS AGREEMENT



                          Dated As of November 9, 1999



                                      among



                         ALLIANT ENERGY RESOURCES, INC.,



                           ALLIANT ENERGY CORPORATION



                                       and



               MERRILL LYNCH, PIERCE, FENNER & SMITH INCORPORATED,

                       MORGAN STANLEY & CO. INCORPORATED,

                           SALOMON SMITH BARNEY INC.,

                              ABN AMRO INCORPORATED

                                       and

                              BARCLAYS CAPITAL INC.



================================================================================

<PAGE>

                          REGISTRATION RIGHTS AGREEMENT


          This  Registration  Rights  Agreement  (the  "Agreement")  is made and
entered into this 9th day of November,  1999,  among Alliant  Energy  Resources,
Inc., a Wisconsin  corporation (the "Company"),  Alliant Energy  Corporation,  a
Wisconsin corporation (the "Parent"),  and Merrill Lynch, Pierce, Fenner & Smith
Incorporated, Morgan Stanley & Co. Incorporated,  Salomon Smith Barney Inc., ABN
Amro  Incorporated  and  Barclays  Capital  Inc.  (collectively,   the  "Initial
Purchasers").

          This  Agreement  is made  pursuant to the  Purchase  Agreement,  dated
November 4, 1999, among the Company,  the Parent, as guarantor,  and the Initial
Purchasers  (the  "Purchase  Agreement"),  which  provides  for the  sale by the
Company to the Initial  Purchasers  of an  aggregate of  $250,000,000  principal
amount of the  Company's 7 3/8% Senior Notes due 2009,  (the  "Securities").  In
order to induce the Initial Purchasers to enter into the Purchase Agreement, the
Company  and the Parent have  agreed to provide to the  Initial  Purchasers  and
their direct and indirect  transferees the registration rights set forth in this
Agreement.  The execution of this  Agreement is a condition to the closing under
the Purchase Agreement.

          In  consideration  of the  foregoing,  the  parties  hereto  agree  as
follows:

          1. Definitions.

          As used in this  Agreement,  the following  capitalized  defined terms
shall have the following meanings:

                    "1933 Act" shall mean the Securities Act of 1933, as amended
          from time to time.

                    "1934 Act" shall mean the  Securities  Exchange Act of l934,
          as amended from time to time.

                    "Closing Date" shall mean the Closing Time as defined in the
          Purchase Agreement.

                    "Company"  shall have the meaning set forth in the  preamble
          and shall also include the Company's successors.

                    "Depositary" shall mean The Depository Trust Company, or any
          other depositary  appointed by the Company,  provided,  however,  that
          such

<PAGE>

          depositary  must have an address in the Borough of  Manhattan,  in the
          City of New York.

                    "Exchange  Offer"  shall  mean  the  exchange  offer  by the
          Company  and  the  Parent  of  Exchange   Securities  for  Registrable
          Securities pursuant to Section 2.1 hereof.

                    "Exchange  Offer  Registration"  shall  mean a  registration
          under the 1933 Act effected pursuant to Section 2.1 hereof.

                    "Exchange  Offer  Registration   Statement"  shall  mean  an
          exchange offer registration  statement on Form S-4 (or, if applicable,
          on another  appropriate  form),  and all amendments and supplements to
          such  registration  statement,   including  the  Prospectus  contained
          therein,  all  exhibits  thereto  and all  documents  incorporated  by
          reference therein.

                    "Exchange  Period"  shall  have  the  meaning  set  forth in
          Section 2.1 hereof.

                    "Exchange Securities" shall mean the 7 3/8% Senior Notes due
          2009,  issued by the  Company  under the  Indenture  containing  terms
          identical  to the  Securities  in all  material  respects  (except for
          references  to  certain  interest  rate  provisions,  restrictions  on
          transfers  and  restrictive  legends),  to be  offered  to  Holders of
          Securities  in exchange  for  Registrable  Securities  pursuant to the
          Exchange Offer.

                    "Holder" shall mean an Initial Purchaser,  for so long as it
          owns any Registrable Securities,  and each of its successors,  assigns
          and direct and indirect  transferees who become  registered  owners of
          Registrable  Securities  under the  Indenture  and each  Participating
          Broker-Dealer  that  holds  Exchange  Securities  for so  long as such
          Participating  Broker-Dealer  is  required  to  deliver  a  prospectus
          meeting the requirements of the 1933 Act in connection with any resale
          of such Exchange Securities.

                    "Indenture"  shall  mean  the  Indenture   relating  to  the
          Securities,  dated as of November 4, 1999,  between the  Company,  the
          Parent and Firstar Bank, N.A., as trustee, as the same may be amended,
          supplemented,  waived  or  otherwise  modified  from  time  to time in
          accordance with the terms thereof.

                    "Initial  Purchaser" or "Initial  Purchasers" shall have the
          meaning set forth in the preamble.


                                       2
<PAGE>

                    "Majority  Holders"  shall mean the Holders of a majority of
          the  aggregate  principal  amount of  Outstanding  (as  defined in the
          Indenture) Registrable Securities;  provided that whenever the consent
          or  approval  of  Holders of a  specified  percentage  of  Registrable
          Securities is required hereunder,  Registrable  Securities held by the
          Company and other  obligors on the  Securities  or any  Affiliate  (as
          defined in the  Indenture)  of the  Company  shall be  disregarded  in
          determining  whether such consent or approval was given by the Holders
          of such required percentage amount.

                    "Parent"  shall have the meaning  set forth in the  preamble
          and shall also include the Parent's successors.

                    "Participating  Broker-Dealer"  shall  mean  any of  Merrill
          Lynch,  Pierce,  Fenner & Smith  Incorporated,  Morgan  Stanley  & Co.
          Incorporated,  Salomon Smith Barney Inc.,  ABN Amro  Incorporated  and
          Barclays Capital Inc. and any other broker-dealer which makes a market
          in the Securities and exchanges Registrable Securities in the Exchange
          Offer for Exchange Securities.

                    "Person" shall mean an individual,  partnership  (general or
          limited),   corporation,   limited   liability   company,   trust   or
          unincorporated  organization,  or a government  or agency or political
          subdivision thereof.

                    "Private  Exchange"  shall  have the  meaning  set  forth in
          Section 2.1 hereof.

                    "Private  Exchange  Securities"  shall have the  meaning set
          forth in Section 2.1 hereof.

                    "Prospectus"  shall  mean  the  prospectus   included  in  a
          Registration Statement,  including any preliminary prospectus, and any
          such   prospectus  as  amended  or   supplemented  by  any  prospectus
          supplement,  including any such prospectus  supplement with respect to
          the terms of the offering of any portion of the Registrable Securities
          covered by a Shelf Registration Statement, and by all other amendments
          and supplements to a prospectus,  including post-effective amendments,
          and in each case  including  all  material  incorporated  by reference
          therein.

                    "Purchase Agreement" shall have the meaning set forth in the
          preamble.


                                       3
<PAGE>

                    "Registrable  Securities"  shall mean the Securities and, if
          issued,  the Private  Exchange  Securities;  provided,  however,  that
          Securities  and, if issued,  the Private  Exchange  Securities,  shall
          cease to be Registrable  Securities when (i) a Registration  Statement
          with respect to such  Securities  shall have been  declared  effective
          under the 1933 Act and such  Securities  shall have been  disposed  of
          pursuant to such  Registration  Statement,  (ii) such  Securities have
          been sold to the public pursuant to Rule l44 (or any similar provision
          then in force,  but not Rule  144A)  under the 1933  Act,  (iii)  such
          Securities  shall have ceased to be  outstanding  or (iv) the Exchange
          Offer is consummated (except in the case of Securities  purchased from
          the Company and continued to be held by the Initial Purchasers).

                    "Registration  Expenses"  shall  mean  any and all  expenses
          incident to performance of or compliance by the Company and the Parent
          with this Agreement,  including without limitation: (i) all SEC, stock
          exchange or National  Association  of  Securities  Dealers,  Inc. (the
          "NASD") registration and filing fees,  including,  if applicable,  the
          fees and expenses of any "qualified independent  underwriter" (and its
          counsel) that is required to be retained by any holder of  Registrable
          Securities in accordance  with the rules and  regulations of the NASD,
          (ii) all fees and expenses incurred in connection with compliance with
          state securities or blue sky laws and compliance with the rules of the
          NASD (including  reasonable fees and  disbursements of counsel for any
          underwriters or Holders in connection with blue sky  qualification  of
          any of the  Exchange  Securities  or  Registrable  Securities  and any
          filings with the NASD), (iii) all expenses of any Persons in preparing
          or assisting in preparing, word processing,  printing and distributing
          any  Registration  Statement,   any  Prospectus,   any  amendments  or
          supplements  thereto,  any underwriting  agreements,  securities sales
          agreements  and other  documents  relating to the  performance  of and
          compliance with this Agreement, (iv) all fees and expenses incurred in
          connection  with  the  listing,  if  any,  of any  of the  Registrable
          Securities on any  securities  exchange or  exchanges,  (v) all rating
          agency  fees,  (vi) the  fees and  disbursements  of  counsel  for the
          Company and the Parent and of the  independent  public  accountants of
          the  Company  and the Parent,  including  the  expenses of any special
          audits or "cold  comfort"  letters  required  by or  incident  to such
          performance  and  compliance,  (vii)  the  fees  and  expenses  of the
          Trustee,  and any escrow agent or  custodian,  (viii) in the case of a
          Shelf Registration Statement, the reasonable fees and disbursements of
          one special counsel  designated in writing by the Majority  Holders to
          represent the Holders of Registrable  Securities and (ix) any fees and
          disbursements of the underwriters  customarily  required to be paid by
          issuers or  sellers of  securities  and the fees and  expenses  of any
          special  experts  retained by


                                       4
<PAGE>

          the  Company  and the  Parent  in  connection  with  any  Registration
          Statement,  but excluding  underwriting  discounts and commissions and
          transfer  taxes,  if  any,  relating  to the  sale or  disposition  of
          Registrable Securities by a Holder.

                    "Registration   Statement"   shall  mean  any   registration
          statement  of the  Company  and the  Parent  which  covers  any of the
          Exchange   Securities  or  Registrable   Securities  pursuant  to  the
          provisions of this  Agreement,  and all amendments and  supplements to
          any such Registration Statement,  including post-effective amendments,
          in each case including the Prospectus  contained therein, all exhibits
          thereto and all material incorporated by reference therein.

                    "Representative"  shall mean Merrill Lynch, Pierce, Fenner &
          Smith Incorporated, as representative of the Initial Purchasers.

                    "SEC" shall mean the Securities  and Exchange  Commission or
          any  successor  agency or  government  body  performing  the functions
          currently  performed  by the United  States  Securities  and  Exchange
          Commission.

                    "SEC Order" shall have the meaning set forth in Section 2.1.

                    "Shelf  Registration"  shall  mean a  registration  effected
          pursuant to Section 2.2 hereof.

                    "Shelf   Registration   Statement"   shall  mean  a  "shelf"
          registration  statement of the Company and the Parent  pursuant to the
          provisions  of Section 2.2 of this  Agreement  which covers all of the
          Registrable Securities or all of the Private Exchange Securities on an
          appropriate  form  under Rule 415 under the 1933 Act,  or any  similar
          rule  that  may  be  adopted  by  the  SEC,  and  all  amendments  and
          supplements to such registration statement,  including  post-effective
          amendments,  in each case including the Prospectus  contained therein,
          all  exhibits  thereto  and all  material  incorporated  by  reference
          therein.

                    "Trustee"  shall  mean  the  trustee  with  respect  to  the
          Securities under the Indenture.

          2. Registration Under the 1933 Act.

          2.1 Exchange Offer. To the extent not prohibited by any applicable law
or applicable interpretation of the staff of the SEC, the Company and the Parent
shall,  for the  benefit  of the  Holders,  at the cost of the  Company  and the
Parent,  (A)  prepare  and, as soon as  practicable  but not later than 135 days
following the Closing  Date,  file with the SEC an Exchange  Offer  Registration
Statement on an  appropriate  form under the 1933


                                       5
<PAGE>

Act with respect to a proposed  Exchange  Offer and the issuance and delivery to
the Holders,  in exchange  for the  Registrable  Securities  (other than Private
Exchange Securities), of a like principal amount of Exchange Securities, (B) use
their reasonable best efforts to cause the Exchange Offer Registration Statement
to be declared effective under the 1933 Act within 180 days of the Closing Date,
(C) use their  reasonable  best efforts to keep the Exchange Offer  Registration
Statement  effective  until the closing of the Exchange  Offer and (D) use their
reasonable  best efforts to cause the Exchange Offer to be consummated not later
than  45 days  after  the  effective  date of the  Exchange  Offer  Registration
Statement. The Exchange Securities will be issued under the Indenture.  Upon the
effectiveness of the Exchange Offer Registration Statement,  the Company and the
Parent shall  promptly  commence the Exchange  Offer,  it being the objective of
such  Exchange  Offer to enable each Holder  eligible  and  electing to exchange
Registrable Securities for Exchange Securities (assuming that such Holder (a) is
not an  affiliate  of the Company  within the meaning of Rule 405 under the 1933
Act,  (b) is  not a  broker-dealer  tendering  Registrable  Securities  acquired
directly  from the  Company  for its own  account,  (c)  acquired  the  Exchange
Securities  in the  ordinary  course of such  Holder's  business  and (d) has no
arrangements  or  understandings  with any Person to participate in the Exchange
Offer for the purpose of distributing the Exchange  Securities) to transfer such
Exchange  Securities  from and after their receipt  without any  limitations  or
restrictions under the 1933 Act and under state securities or blue sky laws.

          In  connection  with the  Exchange  Offer,  the Company and the Parent
shall:

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

                    (b) keep the Exchange Offer open for acceptance for a period
          of not less than 20  business  days after the date  notice  thereof is
          mailed to the Holders (or longer if required by applicable  law) (such
          period referred to herein as the "Exchange Period");

                    (c) utilize the services of the  Depositary for the Exchange
          Offer;

                    (d)  permit   Holders  to  withdraw   tendered   Registrable
          Securities at any time prior to 5:00 p.m.  (Eastern Time), on the last
          business day of the  Exchange  Period,  by sending to the  institution
          specified in the notice, a telegram,  telex, facsimile transmission or
          letter setting forth the name of such Holder,  the principal amount of
          Registrable  Securities  delivered for exchange,


                                       6
<PAGE>

          and a statement that such Holder is withdrawing such Holder's election
          to have such Securities exchanged;

                    (e) notify  each Holder that any  Registrable  Security  not
          tendered will remain outstanding and continue to accrue interest,  but
          will not retain any rights under this Agreement (except in the case of
          the Initial  Purchasers and  Participating  Broker-Dealers as provided
          herein); and

                    (f)  otherwise  comply in all respects  with all  applicable
          laws relating to the Exchange Offer.

          If,  prior  to  consummation  of  the  Exchange  Offer,   the  Initial
Purchasers  hold any  Securities  acquired  by them and  having the status of an
unsold  allotment in the initial  distribution,  the Company and the Parent upon
the request of any Initial Purchaser shall,  simultaneously with the delivery of
the Exchange  Securities in the Exchange  Offer and subject to  compliance  with
applicable  securities  laws,  issue and deliver to such  Initial  Purchaser  in
exchange  (the  "Private  Exchange")  for the  Securities  held by such  Initial
Purchaser, a like principal amount of debt securities of the Company on a senior
basis,  that are identical  (except that such securities  shall bear appropriate
transfer  restrictions)  to  the  Exchange  Securities  (the  "Private  Exchange
Securities").

          The Exchange  Securities and the Private Exchange  Securities shall be
issued under (i) the  Indenture  or (ii) an indenture  identical in all material
respects to the Indenture and which,  in either case, has been  qualified  under
the Trust Indenture Act of 1939, as amended (the "TIA"),  or is exempt from such
qualification  and  shall  provide  that the  Exchange  Securities  shall not be
subject to the transfer  restrictions  set forth in the  Indenture  but that the
Private Exchange Securities shall be subject to such transfer restrictions.  The
Indenture or such  indenture  shall  provide that the Exchange  Securities,  the
Private  Exchange  Securities and the Securities shall vote and consent together
on all  matters  as one  class  and that none of the  Exchange  Securities,  the
Private  Exchange  Securities or the  Securities  will have the right to vote or
consent as a separate class on any matter. The Private Exchange Securities shall
be of the  same  series  as and  the  Company  and  the  Parent  shall  use  all
commercially reasonable efforts to have the Private Exchange Securities bear the
same CUSIP number as the Exchange Securities. Neither the Company nor the Parent
shall have any liability under this Agreement solely as a result of such Private
Exchange   Securities  not  bearing  the  same  CUSIP  number  as  the  Exchange
Securities.

          As soon as  practicable  after the close of the Exchange  Offer and/or
the Private Exchange, as the case may be, the Company and the Parent shall:


                                       7
<PAGE>


                    (i) accept for  exchange  all  Registrable  Securities  duly
          tendered and not validly  withdrawn  pursuant to the Exchange Offer in
          accordance with the terms of the Exchange Offer Registration Statement
          and the letter of transmittal which shall be an exhibit thereto;

                    (ii) accept for exchange all  Securities  properly  tendered
          pursuant to the Private Exchange;

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

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

          Interest on each Exchange  Security and Private Exchange Security will
accrue  from  the  last  date on  which  interest  was  paid on the  Registrable
Securities  surrendered in exchange therefor or, if no interest has been paid on
the Registrable  Securities,  from the date of original  issuance.  The Exchange
Offer and the Private  Exchange  shall not be subject to any  conditions,  other
than (i) that the Exchange Offer or the Private  Exchange,  or the making of any
exchange  by a  Holder,  does  not  violate  applicable  law or  any  applicable
interpretation  of the staff of the SEC, (ii) the due  tendering of  Registrable
Securities in accordance with the Exchange Offer and the Private Exchange, (iii)
that each Holder of Registrable Securities exchanged in the Exchange Offer shall
have  represented  that all  Exchange  Securities  to be received by it shall be
acquired  in the  ordinary  course of its  business  and that at the time of the
consummation of the Exchange Offer it shall have no arrangement or understanding
with any person to  participate in the  distribution  (within the meaning of the
1933  Act)  of  the  Exchange   Securities   and  shall  have  made  such  other
representations  as may be  reasonably  necessary  under  applicable  SEC rules,
regulations  or  interpretations  to  render  the  use  of  Form  S-4  or  other
appropriate form under the 1933 Act available, (iv) that no action or proceeding
shall  have been  instituted  or  threatened  in any  court or by or before  any
governmental  agency with respect to the Exchange Offer or the Private  Exchange
which,  in the  judgment  of the Company and the  Parent,  would  reasonably  be
expected to impair the ability of the Company and the Parent to proceed with the
Exchange  Offer or the  Private  Exchange  and that the  Exchange  Offer and the
Private  Exchange  shall  comply with the  provisions  of the SEC's  Release No.
35-27069,  70-9455  dated as of  August  26,  1999 by which the  Parent  and the
Company are bound (the "SEC Order"). The Company and the Parent shall inform the
Initial  Purchasers  of the  names  and  addresses  of the  Holders  to whom the


                                       8
<PAGE>

Exchange  Offer is made,  and the  Initial  Purchasers  shall  have the right to
contact  such  Holders  and  otherwise  facilitate  the  tender  of  Registrable
Securities in the Exchange Offer.

          2.2 Shelf  Registration.  (i) If,  because of any changes in law,  SEC
rules or regulations or applicable  interpretations  thereof by the staff of the
SEC, the Company and the Parent are not  permitted to effect the Exchange  Offer
as contemplated by Section 2.1 hereof, (ii) if for any other reason the Exchange
Offer Registration Statement is not declared effective within 180 days following
the Closing Date or the Exchange Offer is not  consummated  within 45 days after
effectiveness of the Exchange Offer Registration Statement (provided that if the
Exchange Offer  Registration  Statement  shall be declared  effective after such
180-day period or if the Exchange  Offer shall be consummated  after such 45-day
period, then the obligation of the Company and the Parent under this clause (ii)
arising  from the failure of the  Exchange  Offer  Registration  Statement to be
declared  effective  within such  180-day  period or the failure of the Exchange
Offer  to  be  consummated  within  such  45-day  period,  respectively,   shall
terminate),  (iii) upon the request of any of the Initial  Purchasers  within 90
days following the  consummation of the Exchange Offer,  (iv) if, as a result of
any  changes in law,  SEC rules or  regulations  or  applicable  interpretations
thereof by the staff of the SEC or  otherwise,  a Holder  (other than an Initial
Purchaser  holding  securities  acquired  directly  from  the  Company)  is  not
permitted  to  participate  in the  Exchange  Offer  or does not  receive  fully
tradeable Exchange  Securities  pursuant to the Exchange Offer or (v) if, unless
the  Company  otherwise  determines,  at the time of  issuance  of the  Exchange
Securities  or the  Private  Exchange  Securities,  the  interest  rate for such
securities  will be 300 basis  points  above the yield to  maturity  of a United
States Treasury  obligation having a remaining term equal to the average life of
such  security,  then in case of each of clauses (i) through (v) the Company and
the Parent shall, at their cost:

                    (a) As  promptly  as  practicable,  file  with the SEC,  and
          thereafter  shall use their  reasonable  best  efforts  to cause to be
          declared  effective as promptly as  practicable  but no later than 210
          days after the Closing Date, a Shelf  Registration  Statement relating
          to the offer and sale of the  Registrable  Securities  by the  Holders
          from  time to time in  accordance  with the  methods  of  distribution
          elected  by  the   Majority   Holders   participating   in  the  Shelf
          Registration and set forth in such Shelf Registration Statement.

                    (b) Use  their  reasonable  best  efforts  to keep the Shelf
          Registration  Statement  continuously effective in order to permit the
          Prospectus  forming  part thereof to be usable by Holders for a period
          of two years from the Closing  Date,  or for such shorter  period that
          will terminate when all  Registrable  Securities  covered by the Shelf
          Registration   Statement   have  been  sold   pursuant


                                       9
<PAGE>

          to the Shelf  Registration  Statement  or cease to be  outstanding  or
          otherwise to be Registrable  Securities (the "Effectiveness  Period");
          provided,  however,  that the  Effectiveness  Period in respect of the
          Shelf Registration  Statement shall be extended to the extent required
          to permit  dealers to comply with the applicable  prospectus  delivery
          requirements of Rule 174 under the 1933 Act and as otherwise  provided
          herein.

                    (c)  Notwithstanding  any other provisions hereof, use their
          reasonable  best  efforts  to ensure  that (i) any Shelf  Registration
          Statement and any amendment  thereto and any  Prospectus  forming part
          thereof and any supplement  thereto complies in all material  respects
          with the 1933 Act and the rules and regulations  thereunder,  (ii) any
          Shelf Registration  Statement and any amendment thereto does not, when
          it becomes  effective,  contain an untrue statement of a material fact
          or omit to state a  material  fact  required  to be stated  therein or
          necessary to make the statements  therein not misleading and (iii) any
          Prospectus forming part of any Shelf Registration  Statement,  and any
          supplement to such Prospectus (as amended or supplemented from time to
          time), does not include an untrue statement of a material fact or omit
          to state a material fact necessary in order to make the statements, in
          light of the circumstances under which they were made, not misleading;
          provided,  however, that clauses (ii) and (iii) shall not apply to any
          information  relating to any Initial Purchaser or any Holder furnished
          to the  Company  in  writing  by  such  Initial  Purchaser  or  Holder
          expressly for use in the Shelf Registration Statement.

          The Company and the Parent further agree, if necessary,  to supplement
or amend the Shelf  Registration  Statement,  as required by Section 3(b) below,
and to  furnish  to the  Holders of  Registrable  Securities  copies of any such
supplement or amendment promptly after its being used or filed with the SEC.

          2.3  Expenses.  The Company and the Parent shall pay all  Registration
Expenses in  connection  with the  registration  pursuant to Section 2.1 or 2.2.
Each Holder shall pay all  underwriting  discounts and  commissions and transfer
taxes, if any, relating to the sale or disposition of such Holder's  Registrable
Securities pursuant to the Shelf Registration Statement.

          2.4. Effectiveness.

                    (a) The  Company  and the Parent  will be deemed not to have
          used  their  reasonable  best  efforts  to cause  the  Exchange  Offer
          Registration  Statement or the Shelf  Registration  Statement,  as the
          case may be, to become,  or to remain,  effective during the requisite
          period if the Company and the Parent


                                       10
<PAGE>

          voluntarily  take any action  that  would,  or omit to take any action
          which omission would,  result in any such  Registration  Statement not
          being declared  effective or in the Holders of Registrable  Securities
          covered  thereby  not being  able to  exchange  or offer and sell such
          Registrable  Securities  during  that  period  as and  to  the  extent
          contemplated hereby,  unless such action is required by applicable law
          or, in the case of the Exchange  Offer  Registration  Statement,  such
          action would violate the provisions of the SEC Order.

                    (b) An Exchange  Offer  Registration  Statement  pursuant to
          Section  2.1  hereof or a Shelf  Registration  Statement  pursuant  to
          Section 2.2 hereof will not be deemed to have become  effective unless
          it has been declared effective by the SEC; provided, however, that if,
          after it has been  declared  effective,  the  offering of  Registrable
          Securities  pursuant to an Exchange Offer Registration  Statement or a
          Shelf  Registration  Statement is  interfered  with by any stop order,
          injunction  or other  order  or  requirement  of the SEC or any  other
          governmental  agency or court,  such  Registration  Statement  will be
          deemed  not to  have  become  effective  during  the  period  of  such
          interference, until the offering of Registrable Securities pursuant to
          such Registration Statement may legally resume.

          2.5 Interest. The Indenture executed in connection with the Securities
will  provide  that in the  event  that  (a)  the  Exchange  Offer  Registration
Statement is not filed with the Commission on or prior to the 135th calendar day
following the Closing Date,  (b) the Exchange Offer  Registration  Statement has
not been declared  effective on or prior to the 180th calendar day following the
Closing Date, (c) the Exchange Offer is not consummated, on or prior to the 45th
calendar day  following the effective  date of the Exchange  Offer  Registration
Statement or (d) if required,  the Shelf Registration  Statement is not declared
effective on or prior to the 210th calendar day following the Closing Date (each
such event  referred  to in clauses  (a)  through  (d)  above,  a  "Registration
Default"),  the  interest  rate  borne  by the  Securities  shall  be  increased
("Additional  Interest")  by  one-quarter  of one  percent  per  annum  upon the
occurrence of a Registration Default,  which rate will increase by an additional
one-quarter of one percent at the beginning of the subsequent 90-day period that
such  Additional  Interest  continues  to accrue  under  any such  circumstance,
provided  that the maximum  aggregate  increase in the interest  rate will in no
event exceed  one-half of one percent  (0.50%) per annum.  Following the cure of
all Registration  Defaults the accrual of Additional Interest will cease and the
interest rate will revert to the original rate.

          If the Shelf Registration Statement is unusable by the Holders for any
reason after the Shelf Registration Statement has been declared effective by the
SEC, and the aggregate number of days in any consecutive twelve-month period for
which the Shelf  Registration  Statement  shall not be usable exceeds 30 days in
the aggregate,  then the


                                       11
<PAGE>

interest  rate borne by the  Securities  will be increased by 0.25% per annum of
the principal  amount of the  Securities for the first 90-day period (or portion
thereof)  beginning  on  the  31st  day  following  the  date  that  such  Shelf
Registration  Statement ceases to be usable, which rate shall be increased by an
additional  0.25% per annum of the  principal  amount of the  Securities  at the
beginning of each subsequent 90-day period,  provided that the maximum aggregate
increase in the interest  rate will in no event  exceed  one-half of one percent
(0.50%) per annum. Any amounts payable under this paragraph shall also be deemed
"Additional   Interest"  for  purposes  of  this   Agreement.   Upon  the  Shelf
Registration  Statement once again becoming  usable,  the interest rate borne by
the Securities will be reduced to the original  interest rate if the Company and
the  Parent  are  otherwise  in  compliance  with this  Agreement  at such time.
Additional Interest shall be computed based on the actual number of days elapsed
in each 90-day period in which the Shelf Registration Statement is unusable.

          The  Company and the Parent  shall  notify the  Trustee  within  three
business  days after each and every date on which an event  occurs in respect of
which Additional  Interest is required to be paid (an "Event Date").  Additional
Interest shall be paid by depositing with the Trustee, in trust, for the benefit
of the Holders of Registrable Securities, on or before the applicable semiannual
interest payment date, immediately available funds in sums sufficient to pay the
Additional  Interest then due. The  Additional  Interest due shall be payable on
each  interest  payment  date to the record  Holder of  Securities  entitled  to
receive  the  interest  payment  to be  paid on such  date as set  forth  in the
Indenture.  Each obligation to pay Additional Interest shall be deemed to accrue
from and including the day following the applicable Event Date.

          3. Registration Procedures.

          In connection  with the obligations of the Company and the Parent with
respect to Registration  Statements pursuant to Sections 2.1 and 2.2 hereof, the
Company and the Parent shall:

                    (a) prepare and file with the SEC a Registration  Statement,
          within  the  relevant  time  period  specified  in  Section  2, on the
          appropriate  form under the 1933 Act, which form (i) shall be selected
          by the  Company and the  Parent,  (ii)  shall,  in the case of a Shelf
          Registration,  be available for the sale of the Registrable Securities
          by the selling Holders  thereof,  (iii) shall comply as to form in all
          material  respects with the  requirements  of the applicable  form and
          include or incorporate by reference all financial  statements required
          by the SEC to be filed therewith or incorporated by reference  therein
          and (iv) shall comply in all material  respects with the  requirements
          of Regulation  S-T under the 1933 Act,


                                       12
<PAGE>

          and use their  reasonable  best  efforts  to cause  such  Registration
          Statement to become  effective and remain effective in accordance with
          Section 2 hereof;

                    (b)  prepare  and  file  with the SEC  such  amendments  and
          post-effective  amendments  to each  Registration  Statement as may be
          necessary  under  applicable law to keep such  Registration  Statement
          effective for the applicable  period;  and cause each Prospectus to be
          supplemented  by  any  required  prospectus  supplement,   and  as  so
          supplemented  to be  filed  pursuant  to  Rule  424  (or  any  similar
          provision  then in  force)  under  the  1933 Act and  comply  with the
          provisions of the 1933 Act, the 1934 Act and the rules and regulations
          thereunder  applicable to them with respect to the  disposition of all
          securities   covered  by  each   Registration   Statement  during  the
          applicable period in accordance with the intended method or methods of
          distribution by the selling Holders  thereof  (including  sales by any
          Participating Broker-Dealer);

                    (c) in the case of a Shelf  Registration,  (i)  notify  each
          Holder of Registrable Securities, at least five business days prior to
          filing,  that a  Shelf  Registration  Statement  with  respect  to the
          Registrable  Securities  is being filed and advising such Holders that
          the distribution of Registrable  Securities will be made in accordance
          with the method selected by the Majority Holders  participating in the
          Shelf  Registration;  (ii)  furnish  to  each  Holder  of  Registrable
          Securities  and to each  underwriter  of an  underwritten  offering of
          Registrable Securities, if any, without charge, as many copies of each
          Prospectus,  including each preliminary Prospectus,  and any amendment
          or  supplement  thereto  and such other  documents  as such  Holder or
          underwriter may reasonably request, including financial statements and
          schedules  and, if the Holder so  requests,  all  exhibits in order to
          facilitate  the public sale or other  disposition  of the  Registrable
          Securities;  and (iii) hereby  consent to the use of the Prospectus or
          any amendment or supplement  thereto by each of the selling Holders of
          Registrable Securities in connection with the offering and sale of the
          Registrable  Securities  covered by the Prospectus or any amendment or
          supplement thereto;

                    (d) use their reasonable best efforts to register or qualify
          the Registrable  Securities  under all applicable  state securities or
          "blue sky" laws of such  jurisdictions  as any  Holder of  Registrable
          Securities covered by a Registration Statement and each underwriter of
          an underwritten  offering of Registrable  Securities  shall reasonably
          request by the time the applicable  Registration Statement is declared
          effective  by the SEC,  and do any and all other acts and things which
          may be  reasonably  necessary  or advisable to enable each such Holder
          and   underwriter   to  consummate   the   disposition  in  each  such
          jurisdiction  of such  Registrable  Securities  owned by such  Holder;
          provided,


                                       13
<PAGE>

          however,  that neither the Company nor the Parent shall be required to
          (i) qualify as a foreign  corporation  or as a dealer in securities in
          any  jurisdiction  where it would not otherwise be required to qualify
          but for this Section 3(d), or (ii) take any action which would subject
          it to general service of process or taxation in any such  jurisdiction
          where it is not then so subject;

                    (e) notify  promptly each Holder of  Registrable  Securities
          under a Shelf Registration or any Participating  Broker-Dealer who has
          notified the Company and the Parent that it is utilizing  the Exchange
          Offer  Registration  Statement as provided in paragraph (f) below and,
          if requested by such Holder or  Participating  Broker-Dealer,  confirm
          such advice in writing promptly (i) when a Registration  Statement has
          become   effective  and  when  any   post-effective   amendments   and
          supplements  thereto become effective,  (ii) of any request by the SEC
          or any state securities  authority for  post-effective  amendments and
          supplements  to  a  Registration   Statement  and  Prospectus  or  for
          additional  information  after the  Registration  Statement has become
          effective,  (iii) of the  issuance by the SEC or any state  securities
          authority  of  any  stop  order  suspending  the  effectiveness  of  a
          Registration  Statement or the initiation of any  proceedings for that
          purpose,  (iv) in the case of a Shelf  Registration,  if,  between the
          effective date of a Registration Statement and the closing of any sale
          of Registrable  Securities covered thereby,  the  representations  and
          warranties of the Company and the Parent contained in any underwriting
          agreement,  securities sales agreement or other similar agreement,  if
          any,  relating  to the  offering  cease to be true and  correct in all
          material respects,  (v) of the happening of any event or the discovery
          of any facts  during  the  period a Shelf  Registration  Statement  is
          effective  which  makes  any  statement  made  in  such   Registration
          Statement or the related  Prospectus untrue in any material respect or
          which  requires  the  making  of  any  changes  in  such  Registration
          Statement or  Prospectus in order to make the  statements  therein not
          misleading,  (vi) of the  receipt by the  Company or the Parent of any
          notification  with respect to the suspension of the  qualification  of
          the Registrable Securities or the Exchange Securities, as the case may
          be, for sale in any  jurisdiction  or the initiation or threatening of
          any proceeding for such purpose and (vii) of any  determination by the
          Company  and  the  Parent  that a  post-effective  amendment  to  such
          Registration Statement would be appropriate;

                    (f)  (A) in the  case  of the  Exchange  Offer  Registration
          Statement (i) include in the Exchange Offer  Registration  Statement a
          section  entitled  "Plan  of  Distribution"  which  section  shall  be
          reasonably  acceptable to Merrill Lynch on behalf of the Participating
          Broker-Dealers,  and which shall  contain a summary  statement  of the
          positions  taken or policies made by the staff


                                       14
<PAGE>

          of the SEC with respect to the potential  "underwriter"  status of any
          broker-dealer that holds Registrable  Securities  acquired for its own
          account  as a result  of  market-making  activities  or other  trading
          activities and that will be the  beneficial  owner (as defined in Rule
          13d-3 under the Exchange Act) of Exchange Securities to be received by
          such  broker-dealer  in the Exchange Offer,  whether such positions or
          policies  have been publicly  disseminated  by the staff of the SEC or
          such  positions or  policies,  in the  reasonable  judgment of Merrill
          Lynch on behalf of the Participating  Broker-Dealers  and its counsel,
          represent the  prevailing  views of the staff of the SEC,  including a
          statement that any such broker-dealer who receives Exchange Securities
          for  Registrable  Securities  pursuant  to the  Exchange  Offer may be
          deemed a statutory  underwriter and must deliver a prospectus  meeting
          the requirements of the 1933 Act in connection with any resale of such
          Exchange Securities,  (ii) furnish to each Participating Broker-Dealer
          who has delivered to the Company and the Parent the notice referred to
          in Section 3(e),  without  charge,  as many copies of each  Prospectus
          included in the Exchange Offer Registration  Statement,  including any
          preliminary  prospectus,  and any amendment or supplement  thereto, as
          such Participating  Broker-Dealer may reasonably request, (iii) hereby
          consent  to the use of the  Prospectus  forming  part of the  Exchange
          Offer Registration  Statement or any amendment or supplement  thereto,
          by any Person subject to the prospectus  delivery  requirements of the
          SEC,  including all Participating  Broker-Dealers,  in connection with
          the  sale  or  transfer  of the  Exchange  Securities  covered  by the
          Prospectus or any amendment or supplement thereto, and (iv) include in
          the transmittal  letter or similar  documentation to be executed by an
          exchange offeree in order to participate in the Exchange Offer (x) the
          following provision:

                  "If  the   exchange   offeree  is  a   broker-dealer   holding
                  Registrable  Securities  acquired  for  its own  account  as a
                  result   of   market-making   activities   or  other   trading
                  activities,   it  will  deliver  a   prospectus   meeting  the
                  requirements  of the 1933 Act in connection with any resale of
                  Exchange  Securities  received in respect of such  Registrable
                  Securities pursuant to the Exchange Offer;" and

          (y) a  statement  to the  effect  that by a  broker-dealer  making the
          acknowledgment  described in clause (x) and by delivering a Prospectus
          in  connection  with  the  exchange  of  Registrable  Securities,  the
          broker-dealer  will not be deemed to admit  that it is an  underwriter
          within the meaning of the 1933 Act; and

                    (B)  in  the  case  of  any  Exchange   Offer   Registration
          Statement,  the Company and the Parent agree to deliver to the Initial
          Purchasers  on behalf  of


                                       15
<PAGE>

          the  Participating   Broker-Dealers  upon  the  effectiveness  of  the
          Exchange  Offer  Registration  Statement  (i) an opinion of counsel or
          opinions  of  counsel  substantially  in the form  attached  hereto as
          Exhibit  A,  (ii)  officers'  certificates  substantially  in the form
          customarily  delivered  in a public  offering of debt  securities  and
          (iii) a comfort  letter or comfort  letters in  customary  form to the
          extent  permitted  by Statement  on Auditing  Standards  No. 72 of the
          American  Institute  of  Certified  Public  Accountants  (or if such a
          comfort letter is not permitted,  an agreed upon procedures  letter in
          customary form) from the independent  certified public  accountants of
          the Company and the Parent (and, if necessary,  any other  independent
          certified  public  accountants of any subsidiary of the Company or the
          Parent or of any  business  acquired  by the Company or the Parent for
          which financial statements are, or are required to be, included in the
          Registration Statement) at least as broad in scope and coverage as the
          comfort letter or comfort letters delivered to the Initial  Purchasers
          in connection  with the initial sale of the  Securities to the Initial
          Purchasers;

                    (g) (i) in the case of an Exchange  Offer,  furnish  counsel
          for  the  Initial   Purchasers  and  (ii)  in  the  case  of  a  Shelf
          Registration,   furnish   counsel  for  the  Holders  of   Registrable
          Securities  copies of any comment letters received from the SEC or any
          other  request  by the  SEC  or any  state  securities  authority  for
          amendments or supplements  to a Registration  Statement and Prospectus
          or for additional information;

                    (h) make every reasonable effort to obtain the withdrawal of
          any order suspending the effectiveness of a Registration  Statement at
          the earliest possible moment;

                    (i) in the  case of a Shelf  Registration,  furnish  to each
          Holder  of  Registrable  Securities,  and  each  underwriter,  if any,
          without  charge,  at least  one  conformed  copy of each  Registration
          Statement  and  any  post-effective   amendment   thereto,   including
          financial  statements and schedules  (without  documents  incorporated
          therein by reference and all exhibits thereto, unless requested);

                    (j) in the case of a Shelf Registration,  cooperate with the
          selling  Holders of  Registrable  Securities to facilitate  the timely
          preparation  and  delivery of  certificates  representing  Registrable
          Securities  to be sold and not bearing any  restrictive  legends;  and
          enable  such  Registrable  Securities  to  be  in  such  denominations
          (consistent  with the  provisions of the  Indenture) and registered in
          such names as the selling  Holders or the  underwriters,  if any,  may


                                       16
<PAGE>

          reasonably  request at least three  business days prior to the closing
          of any sale of Registrable Securities;

                    (k) in the case of a Shelf Registration, upon the occurrence
          of any event or the discovery of any facts,  each as  contemplated  by
          Sections 3(e)(v) and 3(e)(vi) hereof, as promptly as practicable after
          the occurrence of such an event,  use their reasonable best efforts to
          prepare a supplement or  post-effective  amendment to the Registration
          Statement  or the  related  Prospectus  or any  document  incorporated
          therein by reference or file any other  required  document so that, as
          thereafter  delivered to the purchasers of the Registrable  Securities
          or Participating  Broker-Dealers,  such Prospectus will not contain at
          the time of such  delivery any untrue  statement of a material fact or
          omit to  state a  material  fact  necessary  to  make  the  statements
          therein, in light of the circumstances under which they were made, not
          misleading  or will remain so  qualified.  At such time as such public
          disclosure is otherwise  made or the Company and the Parent  determine
          that such  disclosure  is not  necessary,  in each case to correct any
          misstatement  of a material  fact or to include any  omitted  material
          fact,  the Company and the Parent agree promptly to notify each Holder
          of such determination and to furnish each Holder such number of copies
          of the  Prospectus  as amended  or  supplemented,  as such  Holder may
          reasonably request;

                    (l) in the case of a Shelf  Registration,  a reasonable time
          prior to the filing of any Registration Statement, any Prospectus, any
          amendment to a Registration  Statement or amendment or supplement to a
          Prospectus or any document  which is to be  incorporated  by reference
          into a Registration  Statement or a Prospectus after initial filing of
          a  Registration  Statement,  provide  copies of such  document  to the
          Initial Purchasers on behalf of such Holders; and make representatives
          of the Company and the Parent as shall be reasonably  requested by the
          Holders of Registrable Securities, or the Initial Purchasers on behalf
          of such  Holders,  available  for  discussion  of such  document  upon
          reasonable  advance notice. In connection with such  discussions,  the
          Holders or the Initial  Purchasers,  on behalf of such Holders,  shall
          use their  reasonable  best efforts to minimize any  disruption to the
          business of the Company and the Parent;

                    (m)  obtain  a CUSIP  number  for all  Exchange  Securities,
          Private Exchange Securities or Registrable Securities, as the case may
          be, not later than the effective date of a Registration Statement, and
          provide the Trustee with  certificates  for the  Exchange  Securities,
          Private Exchange Securities or the Registrable Securities, as the case
          may be, in a form eligible for deposit with the Depositary;


                                       17
<PAGE>

                    (n) (i) cause the Indenture to be qualified under the TIA in
          connection  with  the  registration  of  the  Exchange  Securities  or
          Registrable  Securities,  as the case may be, (ii)  cooperate with the
          Trustee and the Holders to effect such changes to the Indenture as may
          be required for the  Indenture to be so qualified in  accordance  with
          the terms of the TIA and (iii) execute,  and use their reasonable best
          efforts  to cause the  Trustee to  execute,  all  documents  as may be
          required to effect  such  changes,  and all other forms and  documents
          required  to be filed  with the SEC to enable the  Indenture  to be so
          qualified in a timely manner;

                    (o)  in  the  case  of  a  Shelf  Registration,  enter  into
          agreements  (including  underwriting  agreements)  and take all  other
          customary and  appropriate  actions in order to expedite or facilitate
          the disposition of such Registrable  Securities and in such connection
          whether or not an  underwriting  agreement is entered into and whether
          or not the registration is an underwritten registration:

                              (i) make such  representations  and  warranties to
                    the  Holders  of  such   Registrable   Securities   and  the
                    underwriters,  if any, in form,  substance  and scope as are
                    customarily  made by  issuers  to  underwriters  in  similar
                    underwritten  offerings  as may be  reasonably  requested by
                    them;

                              (ii) obtain opinions of counsel to the Company and
                    the Parent and updates  thereof  (which counsel and opinions
                    (in  form,   scope  and   substance)   shall  be  reasonably
                    satisfactory to the managing  underwriters,  if any, and the
                    holders of a majority in principal amount of the Registrable
                    Securities  being sold) addressed to each selling Holder and
                    the underwriters,  if any, covering the matters  customarily
                    covered in  opinions  requested  in sales of  securities  or
                    underwritten  offerings  and such  other  matters  as may be
                    reasonably requested by such Holders and underwriters;

                              (iii)  obtain "cold  comfort"  letters and updates
                    thereof from the independent certified public accountants of
                    the Company and the Parent  (and,  if  necessary,  any other
                    independent  certified public  accountants of any subsidiary
                    of the Company or the Parent or of any business  acquired by
                    the  Company or the Parent  for which  financial  statements
                    are,  or are  required to be,  included in the  Registration
                    Statement)  addressed to the  underwriters,  if any, and use
                    reasonable  efforts  to have such  letter  addressed  to the
                    selling  Holders of  Registrable  Securities  (to the extent
                    consistent  with  Statement on Auditing  Standards No. 72 of
                    the American  Institute of Certified Public Accounts),  such


                                       18
<PAGE>

                    letters to be in customary form and covering  matters of the
                    type  customarily  covered  in  "cold  comfort"  letters  to
                    underwriters   in  connection   with  similar   underwritten
                    offerings;

                              (iv) enter into a securities  sales agreement with
                    the Holders and an agent of the Holders providing for, among
                    other things,  the appointment of such agent for the selling
                    Holders  for  the  purpose  of   soliciting   purchases   of
                    Registrable  Securities,  which  agreement shall be in form,
                    substance and scope customary for similar offerings;

                              (v) if an underwriting  agreement is entered into,
                    cause the same to set forth  indemnification  provisions and
                    procedures  substantially  equivalent to the indemnification
                    provisions and procedures set forth in Section 4 hereof with
                    respect  to the  underwriters  and all other  parties  to be
                    indemnified  pursuant to said  Section or, at the request of
                    any underwriters,  in the form customarily  provided to such
                    underwriters in similar types of transactions; and

                              (vi) deliver such  documents and  certificates  as
                    may be reasonably requested and as are customarily delivered
                    in  similar  offerings  to  the  Holders  of a  majority  in
                    principal  amount of the Registrable  Securities  being sold
                    and the managing underwriters, if any.

          The above shall be done at (i) the  effectiveness of such Registration
Statement  (and each  post-effective  amendment  thereto)  and (ii) each closing
under any  underwriting  or  similar  agreement  as and to the  extent  required
thereunder;

          (p) in the case of a Shelf Registration or if a Prospectus is required
to be delivered by any  Participating  Broker-Dealer  in the case of an Exchange
Offer,  make available for inspection by  representatives  of the Holders of the
Registrable  Securities,  any  underwriters  participating  in  any  disposition
pursuant to a Shelf Registration Statement, any Participating  Broker-Dealer and
any counsel or accountant  retained by any of the  foregoing,  all financial and
other records,  pertinent  corporate documents and properties of the Company and
the Parent  reasonably  requested by any such persons,  and cause the respective
officers,  directors,  employees,  and any other  agents of the  Company and the
Parent  to   supply   all   information   reasonably   requested   by  any  such
representative,  underwriter, special counsel or accountant in connection with a
Registration  Statement,  and make such  representatives  of the Company and the
Parent  available  for  discussion  of such  documents  as shall  be  reasonably
requested by the Initial Purchasers;


                                       19
<PAGE>

          (q) (i) in the case of an Exchange  Offer  Registration  Statement,  a
reasonable  time  prior  to  the  filing  of  any  Exchange  Offer  Registration
Statement,  any Prospectus forming a part thereof,  any amendment to an Exchange
Offer  Registration  Statement or amendment or  supplement  to such  Prospectus,
provide copies of such document to the Initial  Purchasers and to counsel to the
Holders of  Registrable  Securities  and make such changes in any such  document
prior to the filing thereof as the Initial  Purchasers or counsel to the Holders
of  Registrable  Securities  may  reasonably  request  and,  except as otherwise
required by  applicable  law, not file any such  document in a form to which the
Initial  Purchasers  on behalf of the  Holders  of  Registrable  Securities  and
counsel to the Holders of Registrable  Securities shall not have previously been
advised and furnished a copy of or to which the Initial  Purchasers on behalf of
the Holders of  Registrable  Securities or counsel to the Holders of Registrable
Securities shall reasonably object, and make the  representatives of the Company
and the Parent available for discussion of such documents as shall be reasonably
requested by the Initial Purchasers; and

                    (ii) in the case of a Shelf Registration,  a reasonable time
          prior to  filing  any Shelf  Registration  Statement,  any  Prospectus
          forming a part  thereof,  any  amendment  to such  Shelf  Registration
          Statement or  amendment  or  supplement  to such  Prospectus,  provide
          copies of such document to the Holders of Registrable  Securities,  to
          the  Initial  Purchasers,  to  counsel  for  the  Holders  and  to the
          underwriter or underwriters of an underwritten offering of Registrable
          Securities,  if any, make such changes in any such  document  prior to
          the  filing  thereof as the  Initial  Purchasers,  the  counsel to the
          Holders or the underwriter or underwriters  reasonably request and not
          file any such  document in a form to which the Majority  Holders,  the
          Initial Purchasers on behalf of the Holders of Registrable Securities,
          counsel for the Holders of Registrable  Securities or any  underwriter
          shall not have  previously  been advised and furnished a copy of or to
          which the Majority  Holders,  the Initial  Purchasers of behalf of the
          Holders  of  Registrable   Securities,   counsel  to  the  Holders  of
          Registrable Securities or any underwriter shall reasonably object, and
          make the  representatives  of the Company and the Parent available for
          discussion of such  document as shall be  reasonably  requested by the
          Holders of Registrable Securities, the Initial Purchasers on behalf of
          such Holders, counsel for the Holders of Registrable Securities or any
          underwriter.

                    (r)  in  the  case  of  a  Shelf  Registration,   use  their
          reasonable  best  efforts to cause all  Registrable  Securities  to be
          listed on any  securities  exchange on


                                       20
<PAGE>

          which similar debt securities  issued by the Company or the Parent are
          then listed if requested by the Majority  Holders,  or if requested by
          the  underwriter  or  underwriters  of  an  underwritten  offering  of
          Registrable Securities, if any;

                    (s)  in  the  case  of  a  Shelf  Registration,   use  their
          reasonable  best  efforts to cause the  Registrable  Securities  to be
          rated by the  appropriate  rating  agencies,  if so  requested  by the
          Majority  Holders,  or if requested by the underwriter or underwriters
          of an underwritten offering of Registrable Securities, if any;

                    (t)  otherwise   comply  with  all   applicable   rules  and
          regulations of the SEC and make available to its security holders,  as
          soon as reasonably  practicable,  an earnings  statement of the Parent
          covering at least 12 months  which shall  satisfy  the  provisions  of
          Section 11(a) of the 1933 Act and Rule 158 thereunder;

                    (u) cooperate and assist in any filings  required to be made
          with  the  NASD  and,  in the  case  of a Shelf  Registration,  in the
          performance of any due diligence  investigation by any underwriter and
          its counsel (including any "qualified independent underwriter" that is
          required to be retained in accordance  with the rules and  regulations
          of the NASD); and

                    (v) upon  consummation  of an  Exchange  Offer or a  Private
          Exchange, obtain a customary opinion of counsel to the Company and the
          Parent  addressed  to the  Trustee  for the  benefit of all Holders of
          Registrable Securities  participating in the Exchange Offer or Private
          Exchange,  and which  includes an opinion that (i) each of the Company
          and the  Parent  has  duly  authorized,  executed  and  delivered  the
          Exchange Securities and/or Private Exchange Securities, as applicable,
          and the related  indenture,  and (ii) each of the Exchange  Securities
          and related indenture constitute a legal, valid and binding obligation
          of the Company and the Parent, enforceable against the Company and the
          Parent  in  accordance  with  its  respective  terms  (with  customary
          exceptions).

          In the case of a Shelf  Registration  Statement,  the  Company and the
Parent  may  (as a  condition  to  such  Holder's  participation  in  the  Shelf
Registration)  require each Holder of  Registrable  Securities (i) to furnish to
the  Company  and the  Parent  such  information  regarding  the  Holder and the
proposed  distribution  by such  Holder of such  Registrable  Securities  as the
Company  and the Parent  may from time to time  reasonably  request  and (ii) to
agree in writing to be bound by this  Agreement,  including the  indemnification
provisions.


                                       21
<PAGE>


          In the case of a Shelf  Registration  Statement,  each  Holder  agrees
that,  upon  receipt  of any  notice  from the  Company  and the  Parent  of the
happening of any event or the discovery of any facts, each of the kind described
in Section 3(e)(v) hereof, such Holder will forthwith discontinue disposition of
Registrable  Securities pursuant to a Registration Statement until such Holder's
receipt of the copies of the supplemented or amended Prospectus  contemplated by
Section  3(k)  hereof,  and, if so directed by the Company and the Parent,  such
Holder will deliver to the Company and the Parent (at its expense) all copies in
such Holder's possession, other than permanent file copies then in such Holder's
possession,  of the Prospectus  covering such Registrable  Securities current at
the time of receipt of such notice.

          In the event  that the  Company  and the  Parent  fail to  effect  the
Exchange  Offer  or file any  Shelf  Registration  Statement  and  maintain  the
effectiveness of any Shelf  Registration  Statement as provided herein,  neither
the Company nor the Parent shall file any Registration Statement with respect to
any  securities  (within  the  meaning of  Section  2(1) of the 1933 Act) of the
Company or the Parent other than  Registrable  Securities;  notwithstanding  the
foregoing,  the Company and the Parent shall be  permitted to file  registration
statements  solely to register  securities  issued pursuant to employee  benefit
plans, qualified stock option plans or other employee compensation plans.

          If any of the Registrable Securities covered by any Shelf Registration
Statement  are to be  sold  in an  underwritten  offering,  the  underwriter  or
underwriters  and manager or managers  that will  manage such  offering  will be
selected by the Majority Holders of such Registrable Securities included in such
offering  and shall be  acceptable  to the Company and the Parent.  No Holder of
Registrable   Securities  may  participate  in  any  underwritten   registration
hereunder  unless  such  Holder  (a)  agrees to sell such  Holder's  Registrable
Securities on the basis provided in any  underwriting  arrangements  approved by
the persons  entitled  hereunder to approve such  arrangements and (b) completes
and executes all questionnaires,  powers of attorney, indemnities,  underwriting
agreements and other  documents  required  under the terms of such  underwriting
arrangements.

          4. Indemnification; Contribution.

                    (a) The Company and the Parent  jointly and severally  agree
          to indemnify  and hold harmless the Initial  Purchasers,  each Holder,
          each Participating  Broker-Dealer,  each Person who participates as an
          underwriter (any such Person being an "Underwriter")  and each Person,
          if any, who controls any Holder or  Underwriter  within the meaning of
          Section 15 of the 1933 Act or Section 20 of the 1934 Act as follows:


                                       22
<PAGE>


                              (i)  against any and all loss,  liability,  claim,
                    damage and expense whatsoever,  as incurred,  arising out of
                    any  untrue  statement  or  alleged  untrue  statement  of a
                    material fact  contained in any  Registration  Statement (or
                    any  amendment  or  supplement  thereto)  pursuant  to which
                    Exchange   Securities   or   Registrable   Securities   were
                    registered  under  the 1933  Act,  including  all  documents
                    incorporated  therein  by  reference,  or  the  omission  or
                    alleged omission therefrom of a material fact required to be
                    stated therein or necessary to make the  statements  therein
                    not  misleading,  or arising out of any untrue  statement or
                    alleged untrue statement of a material fact contained in any
                    Prospectus  (or any amendment or supplement  thereto) or the
                    omission or alleged  omission  therefrom of a material  fact
                    necessary in order to make the  statements  therein,  in the
                    light of the  circumstances  under which they were made, not
                    misleading;

                              (ii) against any and all loss,  liability,  claim,
                    damage and expense whatsoever, as incurred, to the extent of
                    the aggregate  amount paid in settlement of any  litigation,
                    or any  investigation  or  proceeding  by  any  governmental
                    agency or body,  commenced  or  threatened,  or of any claim
                    whatsoever based upon any such untrue statement or omission,
                    or any such alleged untrue  statement or omission;  provided
                    that (subject to Section 4(d) below) any such  settlement is
                    effected  with the  written  consent of the  Company and the
                    Parent; and

                              (iii) against any and all expense  whatsoever,  as
                    incurred  (including the fees and  disbursements  of counsel
                    chosen by any  indemnified  party),  reasonably  incurred in
                    investigating,    preparing   or   defending   against   any
                    litigation,  or  any  investigation  or  proceeding  by  any
                    governmental agency or body, commenced or threatened, or any
                    claim  whatsoever  based upon any such untrue  statement  or
                    omission,  or any such alleged untrue statement or omission,
                    to the  extent  that any  such  expense  is not  paid  under
                    subparagraph (i) or (ii) above;

          provided,  however,  that this indemnity  agreement shall not apply to
          any loss,  liability,  claim,  damage or expense to the extent arising
          out of any untrue statement or omission or alleged untrue statement or
          omission  made  in  reliance  upon  and  in  conformity  with  written
          information  furnished  to the  Company by the  Holder or  Underwriter
          expressly  for  use in a  Registration  Statement  (or  any  amendment
          thereto) or any Prospectus (or any amendment or supplement thereto).


                                       23
<PAGE>


                    (b)  Each  Holder  severally,  but not  jointly,  agrees  to
          indemnify  and hold  harmless  the  Company,  the Parent  the  Initial
          Purchasers,  each Underwriter and the other selling Holders,  and each
          of their respective  directors and officers,  and each Person, if any,
          who controls  the Company,  the Parent,  the Initial  Purchasers,  any
          Underwriter  or any other selling Holder within the meaning of Section
          15 of the 1933 Act or Section 20 of the 1934 Act,  against any and all
          loss, liability,  claim, damage and expense described in the indemnity
          contained in Section 4(a) hereof,  as incurred,  but only with respect
          to untrue  statements or omissions,  or alleged  untrue  statements or
          omissions,  made in the Shelf Registration Statement (or any amendment
          thereto)  or any  Prospectus  included  therein (or any  amendment  or
          supplement  thereto) in reliance upon and in  conformity  with written
          information  with  respect to such Holder  furnished to the Company by
          such Holder expressly for use in the Shelf Registration  Statement (or
          any  amendment  thereto)  or  such  Prospectus  (or any  amendment  or
          supplement thereto);  provided,  however, that no such Holder shall be
          liable  for any  claims  hereunder  in  excess  of the  amount  of net
          proceeds  received  by  such  Holder  from  the  sale  of  Registrable
          Securities pursuant to such Shelf Registration Statement.

                    (c) Each indemnified  party shall give notice as promptly as
          reasonably  practicable  to each  indemnifying  party of any action or
          proceeding  commenced  against it in respect of which indemnity may be
          sought hereunder, but failure so to notify an indemnifying party shall
          not relieve such  indemnifying  party from any liability  hereunder to
          the extent it is not materially  prejudiced as a result thereof and in
          any event  shall not relieve it from any  liability  which it may have
          otherwise than on account of this indemnity agreement. An indemnifying
          party  may  participate  at its own  expense  in the  defense  of such
          action;  provided,  however,  that counsel to the  indemnifying  party
          shall not (except with the consent of the  indemnified  party) also be
          counsel to the indemnified  party. In no event shall the  indemnifying
          party or parties be liable for the fees and  expenses of more than one
          counsel (in  addition to any local  counsel)  separate  from their own
          counsel for all indemnified  parties in connection with any one action
          or separate  but similar or related  actions in the same  jurisdiction
          arising  out of the same  general  allegations  or  circumstances.  In
          addition,  the indemnifying  party shall be entitled to, to the extent
          that it wishes, jointly with any other similarly notified indemnifying
          party, to assume the defense of any claim or action brought against an
          indemnified  party  with  counsel   reasonably   satisfactory  to  the
          indemnified  party.  After notice from the  indemnifying  party to the
          indemnified  party of its election to assume the defense of such claim
          or  action,  the  indemnifying  party  shall  not  be  liable  to  the
          indemnified party under this Section 7 for any legal or other expenses
          subsequently  incurred by the indemnified party in connection with the
          defense


                                       24
<PAGE>

          thereof  other  than  reasonable  costs  of  investigation;  provided,
          however,  that the  Representative  shall have the right to employ one
          counsel to represent jointly it and those other Initial Purchasers and
          their respective  officers,  employees and controlling persons who may
          be subject to  liability  arising out of any claim in respect of which
          indemnity may be sought by the Initial  Purchasers against the Company
          and the Parent under this Section 4 if, in the reasonable  judgment of
          the  Representative,  either  (i)  there  is an  actual  or  potential
          conflict between the position of the Company and the Parent on the one
          hand and the Initial Purchasers on the other hand or (ii) there may be
          defenses available to it or them that are different from or additional
          to those  available  to the Company and Parent (in any of which events
          the  Company  shall not have the right to direct  the  defense of such
          action on behalf of the Representative  with respect to such different
          defenses),  in any of which events such  reasonable  fees and expenses
          shall be borne by the Company and Parent. No indemnifying party shall,
          without the prior written consent of the indemnified  parties,  settle
          or  compromise or consent to the entry of any judgment with respect to
          any litigation, or any investigation or proceeding by any governmental
          agency or body,  commenced or threatened,  or any claim  whatsoever in
          respect of which indemnification or contribution could be sought under
          this Section 4 (whether or not the  indemnified  parties are actual or
          potential  parties  thereto),  unless such  settlement,  compromise or
          consent (i)  includes  an  unconditional  release of each  indemnified
          party   from   all   liability   arising   out  of  such   litigation,
          investigation,  proceeding  or claim  and  (ii)  does  not  include  a
          statement as to or an admission of fault,  culpability or a failure to
          act by or on behalf of any indemnified party.

                    (d) If at any time an indemnified party shall have requested
          an indemnifying  party to reimburse the indemnified party for fees and
          expenses of counsel,  such indemnifying  party agrees that it shall be
          liable  for any  settlement  of the  nature  contemplated  by  Section
          4(a)(ii)  effected  without its written consent if (i) such settlement
          is entered into more than 45 days after  receipt by such  indemnifying
          party of the aforesaid  request,  (ii) such  indemnifying  party shall
          have received  notice of the terms of such settlement at least 30 days
          prior  to  such   settlement   being   entered  into  and  (iii)  such
          indemnifying party shall not have reimbursed such indemnified party in
          accordance with such request prior to the date of such settlement.

                    (e) If the indemnification provided for in this Section 4 is
          for any reason  unavailable  to or  insufficient  to hold  harmless an
          indemnified  party in  respect  of any  losses,  liabilities,  claims,
          damages or expenses referred to therein,  then each indemnifying party
          shall contribute to the aggregate amount of such


                                       25
<PAGE>

          losses,  liabilities,  claims,  damages and expenses  incurred by such
          indemnified  party, as incurred,  in such proportion as is appropriate
          to reflect the relative fault of the Company and the Parent on the one
          hand and the Holders and the Initial  Purchasers  on the other hand in
          connection  with the  statements or omissions  which  resulted in such
          losses, liabilities, claims, damages or expenses, as well as any other
          relevant equitable considerations.

          The  relative  fault of the Company and the Parent on the one hand and
the Holders and the Initial  Purchasers on the other hand shall be determined by
reference  to,  among other  things,  whether any such untrue or alleged  untrue
statement of a material fact or omission or alleged omission to state a material
fact relates to information  supplied by the Company, the Parent, the Holders or
the Initial  Purchasers and the parties' relative intent,  knowledge,  access to
information and opportunity to correct or prevent such statement or omission.

          The Company,  the Parent, the Holders and the Initial Purchasers agree
that it would not be just and equitable if contribution pursuant to this Section
4 were  determined by pro rata allocation  (even if the Initial  Purchasers were
treated as one entity for such  purpose)  or by any other  method of  allocation
which does not take account of the equitable considerations referred to above in
this Section 4. The aggregate amount of losses, liabilities, claims, damages and
expenses  incurred by an indemnified party and referred to above in this Section
4 shall be deemed to include any legal or other expenses  reasonably incurred by
such  indemnified  party in  investigating,  preparing or defending  against any
litigation,  or any  investigation or proceeding by any  governmental  agency or
body,  commenced  or  threatened,  or any claim  whatsoever  based upon any such
untrue or alleged untrue statement or omission or alleged omission.

          Notwithstanding the provisions of this Section 4, no Initial Purchaser
shall be required to contribute  any amount in excess of the amount by which the
total price at which the Securities  sold by it were offered  exceeds the amount
of any damages which such Initial  Purchaser has otherwise  been required to pay
by reason of such  untrue or alleged  untrue  statement  or  omission or alleged
omission.

          No Person guilty of fraudulent  misrepresentation  (within the meaning
of Section  11(f) of the 1933 Act) shall be  entitled to  contribution  from any
Person who was not guilty of such fraudulent misrepresentation.

          For purposes of this  Section 4, each Person,  if any, who controls an
Initial  Purchaser or Holder within the meaning of Section 15 of the 1933 Act or
Section 20 of the 1934 Act shall have the same  rights to  contribution  as such
Initial  Purchaser or Holder,  and each director of the Company,  the Parent and
each Person,  if any, who controls the


                                       26
<PAGE>

Company  or the  Parent  within  the  meaning  of  Section 15 of the 1933 Act or
Section 20 of the 1934 Act shall  have the same  rights to  contribution  as the
Company  and the Parent.  The  Initial  Purchasers'  respective  obligations  to
contribute pursuant to this Section 4 are several in proportion to the principal
amount of Securities set forth opposite their  respective names in Schedule A to
the Purchase Agreement and not joint.

          5. Miscellaneous.

          5.1 Rule 144 and Rule  144A.  For so long as the  Parent is subject to
the  reporting  requirements  of  Section  13 or 15 of the 1934 Act,  the Parent
covenants  that it will file the  reports  required  to be filed by it under the
1933  Act and  Section  13(a)  or  15(d)  of the  1934  Act and  the  rules  and
regulations  adopted  by the  SEC  thereunder.  If the  Parent  ceases  to be so
required  to file  such  reports,  the  Parent  covenants  that it will upon the
request of any Holder of Registrable Securities (a) make publicly available such
information  as is necessary to permit sales pursuant to Rule 144 under the 1933
Act, (b) deliver such information to a prospective  purchaser as is necessary to
permit  sales  pursuant  to Rule  144A  under the 1933 Act and it will take such
further action as any Holder of Registrable  Securities may reasonably  request,
and (c) take such further  action that is  reasonable in the  circumstances,  in
each case,  to the extent  required  from time to time to enable  such Holder to
sell its Registrable  Securities without  registration under the 1933 Act within
the limitation of the exemptions provided by (i) Rule 144 under the 1933 Act, as
such Rule may be amended  from time to time,  (ii) Rule 144A under the 1933 Act,
as such Rule may be amended  from time to time,  or (iii) any  similar  rules or
regulations  hereafter  adopted  by the SEC.  Upon the  request of any Holder of
Registrable  Securities,  the  Parent  will  deliver  to such  Holder a  written
statement  as to whether it has  complied  with such  requirements.  The Company
shall not be subject to the requirements of this Section 5.1, provided, that, it
obtains no-action relief from the SEC regarding its reporting requirements under
Section 13 or 15 of the 1934 Act and under the 1933 Act.

          5.2 No Inconsistent Agreements. Neither the Company nor the Parent has
entered  into and neither the Company nor the Parent will after the date of this
Agreement enter into any agreement which is inconsistent with the rights granted
to the  Holders  of  Registrable  Securities  in  this  Agreement  or  otherwise
conflicts  with  the  provisions  hereof.  The  rights  granted  to the  Holders
hereunder do not and will not for the term of this Agreement in any way conflict
with the rights  granted to the holders of the  Company's or the Parent's  other
issued and outstanding securities under any such agreements.

          5.3  Amendments  and  Waivers.   The  provisions  of  this  Agreement,
including  the  provisions  of this  sentence,  may not be amended,  modified or
supplemented,  and waivers or consents to departures from the provisions  hereof
may not be given  unless


                                       27
<PAGE>

the Company and the Parent have  obtained  the written  consent of Holders of at
least a majority in aggregate  principal  amount of the outstanding  Registrable
Securities  affected  by such  amendment,  modification,  supplement,  waiver or
departure.

          5.4  Notices.  All notices and other  communications  provided  for or
permitted  hereunder  shall  be made in  writing  by hand  delivery,  registered
first-class  mail,  telex,  telecopier,  or any courier  guaranteeing  overnight
delivery (a) if to a Holder, at the most current address given by such Holder to
the  Company or the  Parent,  as the case may be, by means of a notice  given in
accordance  with the provisions of this Section 5.4, which address  initially is
the  address set forth in the  Purchase  Agreement  with  respect to the Initial
Purchasers;  (b) if to the Company, initially at the Company's address set forth
in the Purchase Agreement,  and thereafter at such other address of which notice
is given in accordance with the provisions of this Section 5.4 and (c) if to the
Parent,  initially at the Parent's address set forth in Purchase Agreement,  and
thereafter at such other address of which notice is given in accordance with the
provisions of this Section 5.4.

          All such notices and communications  shall be deemed to have been duly
given: at the time delivered by hand, if personally delivered; two business days
after being deposited in the mail,  postage  prepaid,  if mailed;  when answered
back, if telexed; when receipt is acknowledged,  if telecopied;  and on the next
business  day if  timely  delivered  to an air  courier  guaranteeing  overnight
delivery.

          Copies of all such notices,  demands, or other communications shall be
concurrently  delivered by the person  giving the same to the Trustee  under the
Indenture, at the address specified in such Indenture.

          5.5 Successor and Assigns.  This Agreement  shall inure to the benefit
of and be binding upon the  successors,  assigns and  transferees of each of the
parties,  including,  without  limitation  and  without  the need for an express
assignment,  subsequent Holders; provided that nothing herein shall be deemed to
permit any assignment,  transfer or other disposition of Registrable  Securities
in  violation of the terms of the Purchase  Agreement or the  Indenture.  If any
transferee of any Holder shall acquire  Registrable  Securities,  in any manner,
whether by operation of law or otherwise,  such Registrable  Securities shall be
held  subject to all of the terms of this  Agreement,  and by taking and holding
such  Registrable  Securities such person shall be  conclusively  deemed to have
agreed to be bound by and to  perform  all of the terms and  provisions  of this
Agreement, including the restrictions on resale set forth in this Agreement and,
if  applicable,  the  Purchase  Agreement,  and such person shall be entitled to
receive the benefits hereof.

          5.6 Third Party  Beneficiaries.  The Initial  Purchasers  (even if the
Initial  Purchasers  are not Holders of Registrable  Securities)  shall be third
party beneficiaries to


                                       28
<PAGE>

the  agreements  made hereunder  between the Company and the Parent,  on the one
hand,  and the Holders,  on the other hand,  and shall have the right to enforce
such agreements  directly to the extent they deem such enforcement  necessary or
advisable  to protect  their  rights or the rights of  Holders  hereunder.  Each
Holder of  Registrable  Securities  shall be a third  party  beneficiary  to the
agreements made hereunder  between the Company and the Parent,  on the one hand,
and the  Initial  Purchasers,  on the other  hand,  and shall  have the right to
enforce  such  agreements  directly  to the  extent  it deems  such  enforcement
necessary or advisable to protect its rights hereunder.

          5.7. Specific Enforcement.  Without limiting the remedies available to
the Initial  Purchasers and the Holders,  the Company and the Parent acknowledge
that any failure by the  Company  and the Parent to comply with its  obligations
under Sections 2.1 through 2.4 hereof may result in material  irreparable injury
to the Initial  Purchasers or the Holders for which there is no adequate  remedy
at law,  that it would not be  possible  to measure  damages  for such  injuries
precisely and that, in the event of any such failure,  the Initial Purchasers or
any Holder may obtain such relief as may be required to specifically enforce the
obligations of the Company and the Parent under Sections 2.1 through 2.4 hereof.

          5.8.  Restriction on Resales.  Until the expiration of two years after
the original issuance of the Securities and the related guarantees,  the Company
and the Parent  will not,  and will cause  their  "affiliates"  (as such term is
defined in Rule 144(a)(1)  under the 1933 Act) not to, resell any Securities and
related  guarantees  which are "restricted  securities" (as such term is defined
under Rule  144(a)(3)  under the 1933 Act) that have been  reacquired  by any of
them and shall  immediately upon any purchase of any such Securities and related
guarantees  submit such  Securities  and related  guarantees  to the Trustee for
cancellation.

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

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

          5.11 GOVERNING LAW. THIS AGREEMENT  SHALL BE GOVERNED BY AND CONSTRUED
IN  ACCORDANCE  WITH  THE LAW OF THE  STATE OF NEW YORK  WITHOUT  REGARD  TO THE
PRINCIPLES OF CONFLICT OF LAWS THEREOF.


                                       29
<PAGE>

          5.12 Severability. In the event that any one or more of the provisions
contained  herein,  or the  application  thereof  in any  circumstance,  is held
invalid, illegal or unenforceable,  the validity, legality and enforceability of
any such  provision  in every  other  respect  and of the  remaining  provisions
contained herein shall not be affected or impaired thereby.




                                       30
<PAGE>

          IN WITNESS WHEREOF, the parties have executed this Agreement as of the
date first written above.

                                      ALLIANT ENERGY RESOURCES, INC.



                                      By:  /s/ Edward M. Gleason
                                           -----------------------------------
                                           Edward M. Gleason
                                           Vice President - Treasurer and
                                           Corporate Secretary



                                      ALLIANT ENERGY CORPORATION,



                                      By:  /s/ Edward M. Gleason
                                           -----------------------------------
                                           Edward M. Gleason
                                           Vice President - Treasurer and
                                           Corporate Secretary


Confirmed and accepted as of
the date first above written:

MERRILL LYNCH, PIERCE, FENNER & SMITH
            INCORPORATED
MORGAN STANLEY & CO. INCORPORATED
SALOMON SMITH BARNEY INC.
ABN AMRO INCORPORATED
BARCLAYS CAPITAL INC.

BY:  MERRILL LYNCH, PIERCE, FENNER & SMITH
                 INCORPORATED



By:   /s/ Russell Robertson
      -----------------------------------
      Name:  Russell Robertson
      Title: Managing Director


                                       31
<PAGE>

                                                                       Exhibit A

                           Form of Opinion of Counsel



Merrill Lynch, Pierce, Fenner & Smith
            Incorporated
Morgan Stanley & Co. Incorporated
Salomon Smith Barney Inc.
ABN Amro Incorporated
Barclays Capital Inc.

c/o Merrill Lynch, Pierce, Fenner & Smith
                Incorporated
Merrill Lynch World Headquarters
North Tower
World Financial Center
New York, New York 10281-1209

Ladies and Gentlemen:

          We have  acted as  counsel  for  Alliant  Energy  Resources,  Inc.,  a
Wisconsin  corporation  (the  "Company"),  and  Alliant  Energy  Corporation,  a
Wisconsin corporation (the "Parent"), in connection with the sale by the Company
to the Initial Purchasers (as defined below) of $250,000,000 aggregate principal
amount of 7 3/8% Senior  Notes due 2009 of the Company  pursuant to the Purchase
Agreement dated November 4, 1999 (the "Purchase  Agreement")  among the Company,
the Parent, as guarantor and Merrill Lynch, Pierce, Fenner & Smith Incorporated,
Morgan  Stanley  &  Co.  Incorporated,  Salomon  Smith  Barney  Inc.,  ABN  Amro
Incorporated and Barclays Capital Inc. (collectively,  the "Initial Purchasers")
and the filing by the Company and the Parent of an Exchange  Offer  Registration
Statement (the "Registration Statement") in connection with an Exchange Offer to
be effected  pursuant to the Registration  Rights  Agreement (the  "Registration
Rights Agreement"), dated November 9, 1999 among the Company, the Parent and the
Initial Purchasers. This opinion is furnished to you pursuant to Section 3(f)(B)
of  the  Registration   Rights  Agreement.   Unless  otherwise  defined  herein,
capitalized  terms used in this  opinion  that are  defined in the  Registration
Rights Agreement are used herein as so defined.

          We have examined such documents, records and matters of law as we have
deemed necessary for purposes of this opinion.  In rendering this opinion, as to
all matters of fact relevant to this opinion,  we have assumed the  completeness
and accuracy of, and are relying solely upon, the representations and warranties
of the  Company  and the  Parent  set forth in the  Purchase  Agreement  and the
statements  set forth in  certificates  of public  officials and officers of the
Company and the Parent, without making any independent  investigation or inquiry
with respect to the completeness or accuracy of such representations, warranties
or statements, other

<PAGE>

than a review of the certificate of  incorporation,  by-laws and relevant minute
books of the Company and the Parent.

          Based on and subject to the foregoing, we are of the opinion that:

          1. The Exchange Offer Registration Statement and the Prospectus (other
than the financial  statements,  notes or schedules  thereto and other financial
and  statistical  data and  supplemental  schedules  included or incorporated by
reference  therein  or  omitted  therefrom  and the Form T-1,  as to which  such
counsel  need express no  opinion),  comply as to form in all material  respects
with the  requirements of the 1933 Act and the applicable  rules and regulations
promulgated under the 1933 Act.

          We have participated in the preparation of the Registration  Statement
and  the  Prospectus  and  in the  course  thereof  have  had  discussions  with
representatives of the Underwriters,  officers and other  representatives of the
Company,  the Parent and Arthur Andersen LLP, the independent public accountants
of the Company and the Parent,  during  which the  contents of the  Registration
Statement and the Prospectus were discussed. We have not, however, independently
verified and are not passing upon, and do not assume any responsibility for, the
accuracy,   completeness  or  fairness  of  the  statements   contained  in  the
Registration  Statement  and  the  Prospectus.  Based  on our  participation  as
described above, nothing has come to our attention that would lead us to believe
that the Registration  Statement (except for financial  statements and schedules
and other financial and statistical data included therein as to which we make no
statement)  contained an untrue statement of a material fact or omitted to state
a  material  fact  required  to be  stated  therein  or  necessary  to make  the
statements  therein not  misleading  or that the  Prospectus or any amendment or
supplement  thereto  (except for  financial  statements  and schedules and other
financial and statistical data included  therein,  as to which such counsel need
make no statement),  at the time the Prospectus was issued, at the time any such
amended or supplemented  Prospectus was issued or at the Closing Time,  included
or includes an untrue  statement of a material fact or omitted or omits to state
a material fact necessary in order to make the statements  therein, in the light
of the circumstances under which they were made, not misleading.

          This  opinion is being  furnished  to you  solely for your  benefit in
connection  with  the  transactions  contemplated  by  the  Registration  Rights
Agreement,  and may not be used for any  other  purpose  or  relied  upon by any
person  other than you.  Except with our prior  written  consent,  the  opinions
herein expressed are not to be used, circulated, quoted or otherwise referred to
in  connection  with any  transactions  other  than  those  contemplated  by the
Registration Rights Agreement by or to any other person.

                                      Very truly yours,


                                       2




                                 FOLEY & LARDNER

                                ATTORNEYS AT LAW

CHICAGO                           FIRSTAR CENTER                      SACRAMENTO
DENVER                      777 EAST WISCONSIN AVENUE                  SAN DIEGO
JACKSONVILLE             MILWAUKEE, WISCONSIN 53202-5367           SAN FRANCISCO
LOS ANGELES                  TELEPHONE (414) 271-2400                TALLAHASSEE
MADISON                      FACSIMILE (414) 297-4900                      TAMPA
MILWAUKEE                                                       WASHINGTON, D.C.
ORLANDO                                                          WEST PALM BEACH

                                December 15, 1999

Alliant Energy Resources, Inc.
Alliant Energy Corporation
222 West Washington Avenue
Madison, Wisconsin  53703

Ladies and Gentlemen:

          We have  acted as  counsel  for  Alliant  Energy  Resources,  Inc.,  a
Wisconsin  corporation  (the  "Company"),  and  Alliant  Energy  Corporation,  a
Wisconsin  corporation  and the parent  corporation  of the Company (the "Parent
Guarantor"),  in connection with the preparation of a Registration  Statement on
Form  S-4,   including  the   Prospectus   constituting   a  part  thereof  (the
"Registration  Statement"),  to  be  filed  with  the  Securities  and  Exchange
Commission under the Securities Act of 1933, as amended (the "Securities  Act"),
relating to an offer to exchange (the "Exchange Offer") the Company's new 7 3/8%
Senior Notes due 2009 (the "New Senior Notes") for an equal principal  amount of
the  Company's  outstanding 7 3/8% Senior Notes due 2009 (the  "Existing  Senior
Notes"). The New Senior Notes will be fully and unconditionally  guaranteed (the
"New Senior Note Guarantees") by the Parent Guarantor.

          The Existing  Senior Notes were issued,  and the New Senior Notes will
be  issued,  pursuant  to an  Indenture,  dated  as of  November  4,  1999  (the
"Indenture"), among the Company, the Parent Guarantor and Firstar Bank, N.A., as
Trustee (the "Trustee"),  as supplemented and amended by the First  Supplemental
Indenture,  dated as of November 4, 1999 (the "Supplemental  Indenture"),  among
the Company, the Parent Guarantor and the Trustee.

          In connection with our opinion, we have examined: (a) the Registration
Statement,  including the  Prospectus;  (b) the  Indenture and the  Supplemental
Indenture (included as Exhibits 4.1 and 4.2,  respectively,  to the Registration
Statement);  (c) the  form of the  New  Senior  Notes  and the New  Senior  Note
Guarantees (included as Exhibit 4.3 to the Registration Statement); and (d) such
other  proceedings,  documents and records as we have deemed necessary to enable
us to render this opinion.

          In our examination of the above referenced documents,  we have assumed
the  genuineness  of  all  signatures,   the   authenticity  of  all  documents,
certificates  and  instruments

<PAGE>

Foley & Lardner
Alliant Energy Resources, Inc.
Alliant Energy Corporation
December 15, 1999
Page 2


submitted  to us as  originals  and the  conformity  with the  originals  of all
documents submitted to us as copies.

          Based  upon  the  foregoing,  assuming  that  the  Indenture  and  the
Supplemental Indenture have been duly authorized, executed and delivered by, and
represent  the  valid and  binding  obligation  of,  the  Trustee,  and when the
Registration  Statement,  including any  amendments  thereto,  shall have become
effective  under  the  Securities  Act and the  Indenture  and the  Supplemental
Indenture  shall have been duly qualified under the Trust Indenture Act of 1939,
as amended, and having regard for such legal considerations as we deem relevant,
we are of the opinion that:

          1. The New Senior  Notes,  when duly  executed and  delivered by or on
behalf  of the  Company  in the  form  contemplated  by the  Indenture  and  the
Supplemental  Indenture  upon the  terms  set  forth in the  Exchange  Offer and
authenticated  by the  Trustee,  will be legally  issued  and valid and  binding
obligations of the Company enforceable in accordance with their terms; and

          2. The New Senior Note Guarantees, when duly executed and delivered by
or on behalf of the Parent  Guarantor in the form  contemplated by the Indenture
and the  Supplemental  Indenture upon the terms set forth in the Exchange Offer,
will be legally issued and valid and binding obligations of the Parent Guarantor
enforceable in accordance with their terms;

except,  in each case,  as  enforcement  thereof  may be limited by  bankruptcy,
insolvency, fraudulent transfer, reorganization,  moratorium or other comparable
laws affecting the enforcement of creditors' rights generally or the application
of equitable principles (regardless of whether such enforceability is considered
in a  proceeding  in  equity  or at  law)  and  subject,  in each  case,  to the
qualification  that certain  provisions thereof may be unenforceable in whole or
in part  under the laws of the State of  Wisconsin,  but the  inclusion  of such
provisions  does not affect the validity of the New Senior Notes or the New Note
Senior  Guarantees and each of them contain legally adequate  provisions for the
realization of the principal legal rights and benefits afforded thereby.

          We hereby  consent  to the  reference  to our firm  under the  caption
"Legal  Matters" in the  Prospectus  which is filed as part of the  Registration
Statement,  and to the filing of this opinion as an exhibit to such Registration
Statement.  In giving this consent, we do not admit that we are "experts" within
the  meaning of  Section 11 of the  Securities  Act or within  the  category  of
persons whose consent is required by Section 7 of the Securities Act.

                                         Very truly yours,

                                         /s/ Foley & Lardner

                                         FOLEY & LARDNER



<TABLE>

Alliant Energy Corporation

                       RATIO OF EARNINGS TO FIXED CHARGES
<CAPTION>

                                                                                                               Nine Months Ended
                                                                    Years Ended December 31,                      September 30,
                                                 1994        1995        1996        1997        1998           1998        1999
                                              -----------------------------------------------------------    -----------------------
                                                                            (Dollars in thousands)
<S>                                            <C>         <C>         <C>         <C>         <C>             <C>        <C>
Income from continuing operations
   before preferred dividends                  $ 153,742   $ 165,839   $ 163,775   $ 151,271   $ 103,374       $ 76,505   $ 156,813
Federal & state income taxes                      84,156      97,018     105,760      81,733      58,113         53,889      91,623
                                              -----------------------------------------------------------    -----------------------
Net income before income taxes                   237,898     262,857     269,535     233,004     161,487        130,394     248,436
                                              -----------------------------------------------------------    -----------------------

Interest expense                                 100,873     111,422     113,321     122,563     129,363         95,045     100,347
Estimated interest component of rent expense       8,795       9,712       8,880       9,438       8,994          6,599       5,977
                                              -----------------------------------------------------------    -----------------------
Fixed charges as defined                         109,668     121,134     122,201     132,001     138,357        101,644     106,324
                                              -----------------------------------------------------------    -----------------------

Earnings as defined                            $ 347,566   $ 383,991   $ 391,736   $ 365,005   $ 299,844      $ 232,038   $ 354,760
                                              ===========================================================    =======================

Ratio of Earnings to Fixed Charges (Unaudited)      3.17        3.17        3.21        2.77        2.17           2.28        3.34
                                              ===========================================================    =======================


</TABLE>




                   CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS



As independent public accountants, we hereby consent to the incorporation of our
report dated  January 29, 1999 (except with respect to the matters  discussed in
Notes 5c and 17, as to which the date is October 29,  1999) on the  consolidated
financial  statements of Interstate Energy  Corporation (name changed to Alliant
Energy Corporation as of May 20, 1999) included in Alliant Energy  Corporation's
Annual  Report on Form 10-K for the year ended  December 31, 1998, as amended by
Alliant  Energy  Corporation's  Form  10-K/A  filed  November 1, 1999 and to all
references to our firm included in this registration statement.



/s/ Arthur Andersen LLP
ARTHUR ANDERSEN LLP


Milwaukee, Wisconsin
December 15, 1999





                                POWER OF ATTORNEY

                   KNOW ALL PERSONS BY THESE PRESENTS, That I

                                 Alan B. Arends

hereby  constitute and appoint Erroll B. Davis,  Jr. and Edward M. Gleason,  and
each of them individually,  my true and lawful  attorney-in-fact and agent, with
full power of substitution and resubstitution,  for me and in my name, place and
stead,  in any and all  capacities,  to sign my name as a  director  of  Alliant
Energy  Resources,  Inc. (the  "Company")  and Alliant Energy  Corporation  (the
"Parent")  to the  Registration  Statement  on  Form  S-4,  and  any  amendments
(including  post-effective  amendments) or supplements  thereto,  relating to an
offer to exchange substantially  identical unsecured debt securities and related
guarantees that are registered under the Securities Act of 1933, as amended, for
up to $250,000,000 aggregate principal amount of unsecured debt securities to be
issued by the Company and  unconditionally  guaranteed by the Parent,  after the
consummation of the private placement of such debt securities,  and to file said
Registration   Statement,   and  any  amendment  (including  any  post-effective
amendment) or supplement thereto, with the Securities and Exchange Commission in
connection  with the  registration  of the unsecured debt securities and related
guarantees under the Securities Act of 1933, as amended.

          I hereby  ratify  and  confirm  all that  said  attorneys-in-fact  and
agents,  or each of them, have done or shall lawfully do by virtue of this Power
of Attorney.

          WITNESS my hand this 20th day of October, 1999.

                                      /s/ Alan B. Arends
                                      Alan B. Arends


<PAGE>

                                POWER OF ATTORNEY

                   KNOW ALL PERSONS BY THESE PRESENTS, That I

                                Rockne G. Flowers

hereby  constitute and appoint Erroll B. Davis,  Jr. and Edward M. Gleason,  and
each of them individually,  my true and lawful  attorney-in-fact and agent, with
full power of substitution and resubstitution,  for me and in my name, place and
stead,  in any and all  capacities,  to sign my name as a  director  of  Alliant
Energy  Resources,  Inc. (the  "Company")  and Alliant Energy  Corporation  (the
"Parent")  to the  Registration  Statement  on  Form  S-4,  and  any  amendments
(including  post-effective  amendments) or supplements  thereto,  relating to an
offer to exchange substantially  identical unsecured debt securities and related
guarantees that are registered under the Securities Act of 1933, as amended, for
up to $250,000,000 aggregate principal amount of unsecured debt securities to be
issued by the Company and  unconditionally  guaranteed by the Parent,  after the
consummation of the private placement of such debt securities,  and to file said
Registration   Statement,   and  any  amendment  (including  any  post-effective
amendment) or supplement thereto, with the Securities and Exchange Commission in
connection  with the  registration  of the unsecured debt securities and related
guarantees under the Securities Act of 1933, as amended.

          I hereby  ratify  and  confirm  all that  said  attorneys-in-fact  and
agents,  or each of them, have done or shall lawfully do by virtue of this Power
of Attorney.

          WITNESS my hand this 20th day of October, 1999.

                                      /s/ Rockne G. Flowers
                                      Rockne G. Flowers

<PAGE>

                                POWER OF ATTORNEY

                   KNOW ALL PERSONS BY THESE PRESENTS, That I

                                 Joyce L. Hanes

hereby  constitute and appoint Erroll B. Davis,  Jr. and Edward M. Gleason,  and
each of them individually,  my true and lawful  attorney-in-fact and agent, with
full power of substitution and resubstitution,  for me and in my name, place and
stead,  in any and all  capacities,  to sign my name as a  director  of  Alliant
Energy  Resources,  Inc. (the  "Company")  and Alliant Energy  Corporation  (the
"Parent")  to the  Registration  Statement  on  Form  S-4,  and  any  amendments
(including  post-effective  amendments) or supplements  thereto,  relating to an
offer to exchange substantially  identical unsecured debt securities and related
guarantees that are registered under the Securities Act of 1933, as amended, for
up to $250,000,000 aggregate principal amount of unsecured debt securities to be
issued by the Company and  unconditionally  guaranteed by the Parent,  after the
consummation of the private placement of such debt securities,  and to file said
Registration   Statement,   and  any  amendment  (including  any  post-effective
amendment) or supplement thereto, with the Securities and Exchange Commission in
connection  with the  registration  of the unsecured debt securities and related
guarantees under the Securities Act of 1933, as amended.

          I hereby  ratify  and  confirm  all that  said  attorneys-in-fact  and
agents,  or each of them, have done or shall lawfully do by virtue of this Power
of Attorney.

          WITNESS my hand this 20th day of October, 1999.

                                      /s/ Joyce L. Hanes
                                      Joyce L. Hanes


<PAGE>

                                POWER OF ATTORNEY

                   KNOW ALL PERSONS BY THESE PRESENTS, That I

                                     Lee Liu

hereby  constitute and appoint Erroll B. Davis,  Jr. and Edward M. Gleason,  and
each of them individually,  my true and lawful  attorney-in-fact and agent, with
full power of substitution and resubstitution,  for me and in my name, place and
stead,  in any and all  capacities,  to sign my name as a  director  of  Alliant
Energy  Resources,  Inc. (the  "Company")  and Alliant Energy  Corporation  (the
"Parent")  to the  Registration  Statement  on  Form  S-4,  and  any  amendments
(including  post-effective  amendments) or supplements  thereto,  relating to an
offer to exchange substantially  identical unsecured debt securities and related
guarantees that are registered under the Securities Act of 1933, as amended, for
up to $250,000,000 aggregate principal amount of unsecured debt securities to be
issued by the Company and  unconditionally  guaranteed by the Parent,  after the
consummation of the private placement of such debt securities,  and to file said
Registration   Statement,   and  any  amendment  (including  any  post-effective
amendment) or supplement thereto, with the Securities and Exchange Commission in
connection  with the  registration  of the unsecured debt securities and related
guarantees under the Securities Act of 1933, as amended.

          I hereby  ratify  and  confirm  all that  said  attorneys-in-fact  and
agents,  or each of them, have done or shall lawfully do by virtue of this Power
of Attorney.

          WITNESS my hand this 20th day of October, 1999.

                                      /s/ Lee Liu
                                      Lee Liu


<PAGE>

                                POWER OF ATTORNEY

                   KNOW ALL PERSONS BY THESE PRESENTS, That I

                               Katherine C. Lyall

hereby  constitute and appoint Erroll B. Davis,  Jr. and Edward M. Gleason,  and
each of them individually,  my true and lawful  attorney-in-fact and agent, with
full power of substitution and resubstitution,  for me and in my name, place and
stead,  in any and all  capacities,  to sign my name as a  director  of  Alliant
Energy  Resources,  Inc. (the  "Company")  and Alliant Energy  Corporation  (the
"Parent")  to the  Registration  Statement  on  Form  S-4,  and  any  amendments
(including  post-effective  amendments) or supplements  thereto,  relating to an
offer to exchange substantially  identical unsecured debt securities and related
guarantees that are registered under the Securities Act of 1933, as amended, for
up to $250,000,000 aggregate principal amount of unsecured debt securities to be
issued by the Company and  unconditionally  guaranteed by the Parent,  after the
consummation of the private placement of such debt securities,  and to file said
Registration   Statement,   and  any  amendment  (including  any  post-effective
amendment) or supplement thereto, with the Securities and Exchange Commission in
connection  with the  registration  of the unsecured debt securities and related
guarantees under the Securities Act of 1933, as amended.

          I hereby  ratify  and  confirm  all that  said  attorneys-in-fact  and
agents,  or each of them, have done or shall lawfully do by virtue of this Power
of Attorney.

          WITNESS my hand this 20th day of October, 1999.


                                      /s/ Katherine C. Lyall
                                      Katherine C. Lyall


<PAGE>

                                POWER OF ATTORNEY

                   KNOW ALL PERSONS BY THESE PRESENTS, That I

                                Arnold M. Nemirow

hereby  constitute and appoint Erroll B. Davis,  Jr. and Edward M. Gleason,  and
each of them individually,  my true and lawful  attorney-in-fact and agent, with
full power of substitution and resubstitution,  for me and in my name, place and
stead,  in any and all  capacities,  to sign my name as a  director  of  Alliant
Energy  Resources,  Inc. (the  "Company")  and Alliant Energy  Corporation  (the
"Parent")  to the  Registration  Statement  on  Form  S-4,  and  any  amendments
(including  post-effective  amendments) or supplements  thereto,  relating to an
offer to exchange substantially  identical unsecured debt securities and related
guarantees that are registered under the Securities Act of 1933, as amended, for
up to $250,000,000 aggregate principal amount of unsecured debt securities to be
issued by the Company and  unconditionally  guaranteed by the Parent,  after the
consummation of the private placement of such debt securities,  and to file said
Registration   Statement,   and  any  amendment  (including  any  post-effective
amendment) or supplement thereto, with the Securities and Exchange Commission in
connection  with the  registration  of the unsecured debt securities and related
guarantees under the Securities Act of 1933, as amended.

          I hereby  ratify  and  confirm  all that  said  attorneys-in-fact  and
agents,  or each of them, have done or shall lawfully do by virtue of this Power
of Attorney.

          WITNESS my hand this 20th day of October, 1999.


                                      /s/ Arnold M. Nemirow
                                      Arnold M. Nemirow

<PAGE>

                                POWER OF ATTORNEY

                   KNOW ALL PERSONS BY THESE PRESENTS, That I

                                Milton M. Neshek

hereby  constitute and appoint Erroll B. Davis,  Jr. and Edward M. Gleason,  and
each of them individually,  my true and lawful  attorney-in-fact and agent, with
full power of substitution and resubstitution,  for me and in my name, place and
stead,  in any and all  capacities,  to sign my name as a  director  of  Alliant
Energy  Resources,  Inc. (the  "Company")  and Alliant Energy  Corporation  (the
"Parent")  to the  Registration  Statement  on  Form  S-4,  and  any  amendments
(including  post-effective  amendments) or supplements  thereto,  relating to an
offer to exchange substantially  identical unsecured debt securities and related
guarantees that are registered under the Securities Act of 1933, as amended, for
up to $250,000,000 aggregate principal amount of unsecured debt securities to be
issued by the Company and  unconditionally  guaranteed by the Parent,  after the
consummation of the private placement of such debt securities,  and to file said
Registration   Statement,   and  any  amendment  (including  any  post-effective
amendment) or supplement thereto, with the Securities and Exchange Commission in
connection  with the  registration  of the unsecured debt securities and related
guarantees under the Securities Act of 1933, as amended.

          I hereby  ratify  and  confirm  all that  said  attorneys-in-fact  and
agents,  or each of them, have done or shall lawfully do by virtue of this Power
of Attorney.

          WITNESS my hand this 20th day of October, 1999.

                                      /s/ Milton M. Neshek
                                      Milton M. Neshek

<PAGE>

                                POWER OF ATTORNEY

                   KNOW ALL PERSONS BY THESE PRESENTS, That I

                                 Jack R. Newman

hereby  constitute and appoint Erroll B. Davis,  Jr. and Edward M. Gleason,  and
each of them individually,  my true and lawful  attorney-in-fact and agent, with
full power of substitution and resubstitution,  for me and in my name, place and
stead,  in any and all  capacities,  to sign my name as a  director  of  Alliant
Energy  Resources,  Inc. (the  "Company")  and Alliant Energy  Corporation  (the
"Parent")  to the  Registration  Statement  on  Form  S-4,  and  any  amendments
(including  post-effective  amendments) or supplements  thereto,  relating to an
offer to exchange substantially  identical unsecured debt securities and related
guarantees that are registered under the Securities Act of 1933, as amended, for
up to $250,000,000 aggregate principal amount of unsecured debt securities to be
issued by the Company and  unconditionally  guaranteed by the Parent,  after the
consummation of the private placement of such debt securities,  and to file said
Registration   Statement,   and  any  amendment  (including  any  post-effective
amendment) or supplement thereto, with the Securities and Exchange Commission in
connection  with the  registration  of the unsecured debt securities and related
guarantees under the Securities Act of 1933, as amended.

          I hereby  ratify  and  confirm  all that  said  attorneys-in-fact  and
agents,  or each of them, have done or shall lawfully do by virtue of this Power
of Attorney.

          WITNESS my hand this 20th day of October, 1999.


                                      /s/ Jack R. Newman
                                      Jack R. Newman

<PAGE>



                                POWER OF ATTORNEY

                   KNOW ALL PERSONS BY THESE PRESENTS, That I

                                 Judith D. Pyle

hereby  constitute and appoint Erroll B. Davis,  Jr. and Edward M. Gleason,  and
each of them individually,  my true and lawful  attorney-in-fact and agent, with
full power of substitution and resubstitution,  for me and in my name, place and
stead,  in any and all  capacities,  to sign my name as a  director  of  Alliant
Energy  Resources,  Inc. (the  "Company")  and Alliant Energy  Corporation  (the
"Parent")  to the  Registration  Statement  on  Form  S-4,  and  any  amendments
(including  post-effective  amendments) or supplements  thereto,  relating to an
offer to exchange substantially  identical unsecured debt securities and related
guarantees that are registered under the Securities Act of 1933, as amended, for
up to $250,000,000 aggregate principal amount of unsecured debt securities to be
issued by the Company and  unconditionally  guaranteed by the Parent,  after the
consummation of the private placement of such debt securities,  and to file said
Registration   Statement,   and  any  amendment  (including  any  post-effective
amendment) or supplement thereto, with the Securities and Exchange Commission in
connection  with the  registration  of the unsecured debt securities and related
guarantees under the Securities Act of 1933, as amended.

          I hereby  ratify  and  confirm  all that  said  attorneys-in-fact  and
agents,  or each of them, have done or shall lawfully do by virtue of this Power
of Attorney.

          WITNESS my hand this 20th day of October, 1999.


                                      /s/ Judith D. Pyle
                                      Judith D. Pyle


<PAGE>

                                POWER OF ATTORNEY

                   KNOW ALL PERSONS BY THESE PRESENTS, That I

                                  Robert D. Ray

hereby  constitute and appoint Erroll B. Davis,  Jr. and Edward M. Gleason,  and
each of them individually,  my true and lawful  attorney-in-fact and agent, with
full power of substitution and resubstitution,  for me and in my name, place and
stead,  in any and all  capacities,  to sign my name as a  director  of  Alliant
Energy  Resources,  Inc. (the  "Company")  and Alliant Energy  Corporation  (the
"Parent")  to the  Registration  Statement  on  Form  S-4,  and  any  amendments
(including  post-effective  amendments) or supplements  thereto,  relating to an
offer to exchange substantially  identical unsecured debt securities and related
guarantees that are registered under the Securities Act of 1933, as amended, for
up to $250,000,000 aggregate principal amount of unsecured debt securities to be
issued by the Company and  unconditionally  guaranteed by the Parent,  after the
consummation of the private placement of such debt securities,  and to file said
Registration   Statement,   and  any  amendment  (including  any  post-effective
amendment) or supplement thereto, with the Securities and Exchange Commission in
connection  with the  registration  of the unsecured debt securities and related
guarantees under the Securities Act of 1933, as amended.

          I hereby  ratify  and  confirm  all that  said  attorneys-in-fact  and
agents,  or each of them, have done or shall lawfully do by virtue of this Power
of Attorney.

          WITNESS my hand this 20th day of October, 1999.


                                      /s/ Robert D. Ray
                                      Robert D. Ray

<PAGE>

                                POWER OF ATTORNEY

                   KNOW ALL PERSONS BY THESE PRESENTS, That I

                                Robert W. Schlutz

hereby  constitute and appoint Erroll B. Davis,  Jr. and Edward M. Gleason,  and
each of them individually,  my true and lawful  attorney-in-fact and agent, with
full power of substitution and resubstitution,  for me and in my name, place and
stead,  in any and all  capacities,  to sign my name as a  director  of  Alliant
Energy  Resources,  Inc. (the  "Company")  and Alliant Energy  Corporation  (the
"Parent")  to the  Registration  Statement  on  Form  S-4,  and  any  amendments
(including  post-effective  amendments) or supplements  thereto,  relating to an
offer to exchange substantially  identical unsecured debt securities and related
guarantees that are registered under the Securities Act of 1933, as amended, for
up to $250,000,000 aggregate principal amount of unsecured debt securities to be
issued by the Company and  unconditionally  guaranteed by the Parent,  after the
consummation of the private placement of such debt securities,  and to file said
Registration   Statement,   and  any  amendment  (including  any  post-effective
amendment) or supplement thereto, with the Securities and Exchange Commission in
connection  with the  registration  of the unsecured debt securities and related
guarantees under the Securities Act of 1933, as amended.

          I hereby  ratify  and  confirm  all that  said  attorneys-in-fact  and
agents,  or each of them, have done or shall lawfully do by virtue of this Power
of Attorney.

          WITNESS my hand this 20th day of October, 1999.


                                      /s/ Robert W. Schlutz
                                      Robert W. Schlutz

<PAGE>

                                POWER OF ATTORNEY

                   KNOW ALL PERSONS BY THESE PRESENTS, That I

                              Wayne H. Stoppelmoor

hereby  constitute and appoint Erroll B. Davis,  Jr. and Edward M. Gleason,  and
each of them individually,  my true and lawful  attorney-in-fact and agent, with
full power of substitution and resubstitution,  for me and in my name, place and
stead,  in any and all  capacities,  to sign my name as a  director  of  Alliant
Energy  Resources,  Inc. (the  "Company")  and Alliant Energy  Corporation  (the
"Parent")  to the  Registration  Statement  on  Form  S-4,  and  any  amendments
(including  post-effective  amendments) or supplements  thereto,  relating to an
offer to exchange substantially  identical unsecured debt securities and related
guarantees that are registered under the Securities Act of 1933, as amended, for
up to $250,000,000 aggregate principal amount of unsecured debt securities to be
issued by the Company and  unconditionally  guaranteed by the Parent,  after the
consummation of the private placement of such debt securities,  and to file said
Registration   Statement,   and  any  amendment  (including  any  post-effective
amendment) or supplement thereto, with the Securities and Exchange Commission in
connection  with the  registration  of the unsecured debt securities and related
guarantees under the Securities Act of 1933, as amended.

          I hereby  ratify  and  confirm  all that  said  attorneys-in-fact  and
agents,  or each of them, have done or shall lawfully do by virtue of this Power
of Attorney.

          WITNESS my hand this 20th day of October, 1999.


                                      /s/  Wayne H. Stoppelmoor
                                      Wayne H. Stoppelmoor

<PAGE>

                                POWER OF ATTORNEY

                   KNOW ALL PERSONS BY THESE PRESENTS, That I

                                Anthony R. Weiler

hereby  constitute and appoint Erroll B. Davis,  Jr. and Edward M. Gleason,  and
each of them individually,  my true and lawful  attorney-in-fact and agent, with
full power of substitution and resubstitution,  for me and in my name, place and
stead,  in any and all  capacities,  to sign my name as a  director  of  Alliant
Energy  Resources,  Inc. (the  "Company")  and Alliant Energy  Corporation  (the
"Parent")  to the  Registration  Statement  on  Form  S-4,  and  any  amendments
(including  post-effective  amendments) or supplements  thereto,  relating to an
offer to exchange substantially  identical unsecured debt securities and related
guarantees that are registered under the Securities Act of 1933, as amended, for
up to $250,000,000 aggregate principal amount of unsecured debt securities to be
issued by the Company and  unconditionally  guaranteed by the Parent,  after the
consummation of the private placement of such debt securities,  and to file said
Registration   Statement,   and  any  amendment  (including  any  post-effective
amendment) or supplement thereto, with the Securities and Exchange Commission in
connection  with the  registration  of the unsecured debt securities and related
guarantees under the Securities Act of 1933, as amended.

          I hereby  ratify  and  confirm  all that  said  attorneys-in-fact  and
agents,  or each of them, have done or shall lawfully do by virtue of this Power
of Attorney.

          WITNESS my hand this 20th day of October, 1999.


                                      /s/ Anthony R. Weiler
                                      Anthony R. Weiler




                       Securities and Exchange Commission
                             Washington, D.C. 20549

                                    FORM T-1
                         STATEMENT OF ELIGIBILITY UNDER
                      THE TRUST INDENTURE ACT OF 1939 OF A
                    CORPORATION DESIGNATED TO ACT AS TRUSTEE

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

          Check if an Application to Determine Eligibility of a Trustee
                     Pursuant to Section 305(b)(2)______

                             ----------------------
                               FIRSTAR BANK, N.A.
               (Exact name of trustee as specified in its charter)


                      Wisconsin                                 39-0281225
          (Jurisdiction of incorporation or                  (I.R.S. Employer
     organization if not a U. S. National Bank)           Identification Number)

   777 East Wisconsin Avenue, Milwaukee, Wisconsin                 53202
      (Address of principal executive offices)                  (Zip Code)


                               Firstar Bank, N.A.
                            777 East Wisconsin Avenue
                           Milwaukee, Wisconsin 53202
                            Telephone (414) 765-5725
           (Name, address, and telephone number of agent for service)


                         Alliant Energy Resources, Inc.
               (Exact name of obligor as specified in its charter)

                Wisconsin                                39-1605561
       (State or other jurisdiction                   (I.R.S. Employer
     of incorporation or organization)              Identification Number)

            200 First Street SE
            Cedar Rapids, Iowa                              52401
   (Address of principal executive offices)               (Zip Code)

                          7 3/8% Senior Notes due 2009
                         (Title of indenture securities)


                           Alliant Energy Corporation
               (Exact name of obligor as specified in its charter)

                Wisconsin                                39-1380265
       (State or other jurisdiction                   (I.R.S. Employer
     of incorporation or organization)              Identification Number)

        222 West Washington Avenue
         Madison, Wisconsin 53703                          53703
   (Address of principal executive offices)              (Zip Code)

                   Guarantees of 7 3/8% Senior Notes due 2009
                         (Title of indenture securities)
<PAGE>

Item 1.   General Information.

          Furnish the following information as to the trustee:

          (a) Name and address of each  examining  or  supervising  authority to
          which it is subject.

              Comptroller of the Currency, Washington, D.C.
              Federal Deposit Insurance Corporation, Washington, D.C.

          (b) Whether it is authorized to exercise corporate trust powers.

              The corporate trustee is authorized to exercise corporate trust
              powers.

Item 2.   Affiliations with the Obligor.

          If the obligor is an  affiliate  of the  trustee,  describe  each such
          affiliation.

          The obligor is not an affiliate of the trustee.

Item 3.   Voting Securities of the Trustee.

          Furnish  the  following   information  as  to  each  class  of  voting
          securities of the trustee:

                             As of December 13, 1999

                      Col. A                               Col. B
                  Title of class                     Amount outstanding

          Per General Instruction B to Form T-1, no response is required to this
          item as the obligor is not presently in default.

Item 4.   Trusteeships under Other Indentures.

          If the trustee is a trustee  under another  indenture  under which any
          other securities,  or certificates of interest or participation in any
          other  securities,  of  the  obligor  are  outstanding,   furnish  the
          following information:

          (a)  Title  of  the  securities  outstanding  under  each  such  other
          indenture.

              Per General Instruction B to Form T-1, no response is required
              to this item as the obligor is not presently in default.

          (b) A brief  statement  of the  facts  relied  upon as a basis for the
          claim  that no  conflicting  interest  within  the  meaning of Section
          310(b)(1) of the Act arises as a result of the  trusteeship  under any
          such other  indenture,  including a statement as to how the  indenture
          securities will rank as compared with the securities issued under such
          other indenture.

              Per General Instruction B to Form T-1, no response is required
              to this item as the obligor is not presently in default.


<PAGE>

Item 5.   Interlocking  Directorates  and  Similar  Relationships  with  the
          Obligor or Underwriters.

          If the trustee or any of the  directors or  executive  officers of the
          trustee is a  director,  officer,  partner,  employee,  appointee,  or
          representative  of the obligor or of any  underwriter for the obligor,
          identify  each such person  having any such  connection  and state the
          nature of each such connection.

          Per General Instruction B to Form T-1, no response is required to this
          item as the obligor is not presently in default.

Item 6.   Voting  Securities  of the  Trustee  Owned by the  Obligor  or its
          Officials.

          Furnish the following  information as to the voting  securities of the
          trustee owned beneficially by the obligor and each director,  partner,
          and executive officer of the obligor:

                             As of December 13, 1999

              Col. A         Col. B              Col. C           Col. D
          Name of owner   Title of class      Amount owned     Percentage of
                                              beneficially     voting securities
                                                                represented by
                                                                amount given
                                                                 in Col. C

          Per General Instruction B to Form T-1, no response is required to this
          item as the obligor is not presently in default.

Item 7.   Voting Securities of the Trustee Owned by Underwriters or their
          Officials.

          Furnish the following  information as to the voting  securities of the
          trustee owned  beneficially  by each  underwriter  for the obligor and
          each   director,   partner,   and  executive   officer  of  each  such
          underwriter:

                             As of December 13, 1999


              Col. A         Col. B              Col. C           Col. D
          Name of owner   Title of class      Amount owned     Percentage of
                                              beneficially     voting securities
                                                                represented by
                                                                amount given
                                                                 in Col. C


          Per General Instruction B to form T-1, no response is required to this
          item as the obligor is not presently in default.

<PAGE>

Item 8.   Securities of the Obligor Owned or Held by the Trustee.

          Furnish the  following  information  as to  securities  of the obligor
          owned  beneficially or held as collateral  security for obligations in
          default by the trustee:

                             As of December 13, 1999

            Col. A         Col. B             Col. C               Col. D
         Title of class    Whether         Amount owned           Percent of
                        the securities  beneficially or held   class represented
                          are voting    as collateral security  by amount given
                         or nonvoting     for obligations         in Col. C
                          securities       in default

          Per General Instruction B to Form T-1, no response is required to this
          item as the obligor is not presently in default.

Item 9.   Securities of Underwriters Owned or Held by the Trustee.

          If the trustee owns  beneficially or holds as collateral  security for
          obligations  in  default  any  securities  of an  underwriter  for the
          obligor,  furnish  the  following  information  as to  each  class  of
          securities  of such  underwriter  any of which are so owned or held by
          the trustee:

                             As of December 13, 1999

              Col. A        Col. B             Col. C               Col. D
              Name of       Amount          Amount owned          Percent of
            issuer and    outstanding   beneficially or held   class represented
          title of class               as collateral security   by amount given
                                         for obligations in        in Col. C
                                         default by trustee

          Per General Instruction B to Form T-1, no response is required to this
          item as the obligor is not presently in default.

Item 10.  Ownership or Holdings by the Trustee of Voting Securities of Certain
          Affiliates or Security Holders of the Obligor.

          If the trustee owns  beneficially or holds as collateral  security for
          obligations  in default  voting  securities  of a person  who,  to the
          knowledge  of the  trustee  (1) owns 10  percent or more of the voting
          securities  of  the  obligor  or  (2) is an  affiliate,  other  than a
          subsidiary,  of the obligor,  furnish the following  information as to
          the voting securities of such person:

                             As of December 13, 1999


              Col. A        Col. B             Col. C               Col. D
              Name of       Amount          Amount owned          Percent of
            issuer and    outstanding   beneficially or held   class represented
          title of class               as collateral security   by amount given
                                         for obligations in        in Col. C
                                         default by trustee

          Per General Instruction B to Form T-1, no response is required to this
          item as the obligor is not presently in default.

<PAGE>

Item 11.  Ownership or Holdings by the Trustee of any Securities of a Person
          Owning 50 Percent or More of the Voting Securities of the Obligor.

          If the trustee owns  beneficially or holds as collateral  security for
          obligations  in  default  any  securities  of a  person  who,  to  the
          knowledge  of the  trustee,  owns 50  percent  or  more of the  voting
          securities  of the obligor,  furnish the following  information  as to
          each class of  securities  of such person any of which are so owned or
          held by the trustee:

                             As of December 13, 1999

              Col. A        Col. B             Col. C               Col. D
              Name of       Amount          Amount owned          Percent of
            issuer and    outstanding   beneficially or held   class represented
          title of class               as collateral security   by amount given
                                         for obligations in        in Col. C
                                         default by trustee

          Per General Instruction B to Form T-1, no response is required to this
          item as the obligor is not presently in default.

Item 12.  Indebtedness of the Obligor to the Trustee.

          Except as noted in the instructions, if the obligor is indebted to the
          trustee, furnish the following information:

                             As of December 13, 1999

                   Col. A                     Col. B                Col. C
           Nature of indebtedness       Amount outstanding         Date due

          Per General Instruction B to Form T-1, no response is required to this
          item as the obligor is not presently in default.

Item 13.  Defaults by the Obligor.

          (a) State  whether  there is or has been a default with respect to the
          securities  under  this  indenture.  Explain  the  nature  of any such
          default.

          Per General Instruction B to Form T-1, no response is required to this
          item as the obligor is not presently in default.

          (b) If the trustee is a trustee  under another  indenture  under which
          any other securities,  or certificates of interest or participation in
          any other  securities,  of the obligor are outstanding,  or is trustee
          for  more  than  one  outstanding   series  of  securities  under  the
          indenture,  state  whether  there  has been a  default  under any such
          indenture or series,  identify the indenture or series  affected,  and
          explain the nature of any such default.

          Per General Instruction B to Form T-1, no response is required to this
          item as the obligor is not presently in default.

<PAGE>

Item 14.  Affiliations with the Underwriters.

          If any underwriter is an affiliate of the trustee,  describe each such
          affiliation.

          Per General Instruction B to Form T-1, no response is required to this
          item as the obligor is not presently in default.

Item 15.  Foreign Trustee.

          Identify  the order or rule  pursuant to which the foreign  trustee is
          authorized to act as sole trustee under indentures  qualified or to be
          qualified under the Act. Not applicable

Item 16.  List of Exhibits.

          List  below  all  exhibits   filed  as  part  of  this   statement  of
          eligibility.

          1. A copy of the Articles of Association of Firstar Bank,  N.A. as now
          in effect (filed herewith).

          2.  Certificate  of  authority  of the  Trustee to  commence  business
          (contained in Exhibit 1).

          3. Authorization of the Trustee to exercise trust (filed herewith).

          4. A copy  of the  existing  By-Laws  of  Firstar  Bank,  N.A.  (filed
          herewith).

          6. The consent of the Trustee  required by Section 321(b) of the Trust
          Indenture Act of 1939 (filed herewith).

          7. A copy of the latest  report of condition of the Trustee  (formerly
          known as Firstar Bank Milwaukee,  N.A.)  published  pursuant to law or
          the  requirement  of its  supervising  or examining  authority  (filed
          herewith).

                                    SIGNATURE

          Pursuant to the  requirements  of the Trust Indenture Act of 1939, the
trustee, Firstar Bank, N.A., a corporation organized and existing under the laws
of the United States, has duly caused this statement of eligibility to be signed
on its behalf by the undersigned,  thereunto duly authorized, all in the City of
Milwaukee, and State of Wisconsin, on the 13th day of December, 1999.


                                      FIRSTAR BANK, N.A.
                                            (Trustee)


                                      By: /s/Yvonne Siira
                                          ---------------
                                          Yvonne Siira, Assistant Vice President
                                          --------------------------------------
                                          (Name and title)

                                      By:    /s/Pamela Warner
                                          -------------------
                                          Pamela Warner, Assistant Secretary
                                          ----------------------------------
                                          (Name and title)

<PAGE>

                                    Exhibit 1


                       FIRSTAR BANK, NATIONAL ASSOCIATION
                       ----------------------------------

                                 CHARTER NO. 24
                                 --------------

                             ARTICLES OF ASSOCIATION
                             -----------------------

FIRST:  The  title  of  this  Association  shall  be  "Firstar  Bank,   National
Association".

SECOND:  The main office of the Association  shall be in the city of Cincinnati,
County of Hamilton, State of Ohio. The general business of the Association shall
be conducted at its main office and its branches.

THIRD: The Board of Directors of this Association shall consist of not less than
five (5) nor more  than  twenty-five  (25)  shareholders,  the  exact  number of
Directors within such minimum and maximum limits to be fixed and determined from
time to time by resolution of a majority of the full Board of Directors or by re
solution of the  shareholders at any annual or special meeting  thereof.  Unless
otherwise provided by the laws of the United States, any vacancy in the Board of
Directors for any reason,  including an increase in the number  thereof,  may be
filled by action of the Board of Directors.

FOURTH: The annual meeting of the shareholders for the election of Directors and
the  transaction  of whatever  other business may be brought before said meeting
shall be held at the main office or such other  place as the Board of  Directors
may designate,  on the day of each year specified thereof by the Bylaws,  but if
no election is held on that day, it may be held on any  subsequent day according
to the  provisions  of law;  and all  elections  shall be held  according to the
provisions  of law;  and all  elections  shall be held  according to such lawful
regulations as may be prescribed by the Board of Directors.

FIFTH:  The  authorized  amount of capital  stock of this  Association  shall be
3,640,000  shares of common stock of the par value of five dollars ($5.00) each,
but said  capital  stock may be increased  or  decreased  from time to time,  in
accordance with the provisions of the laws of the United States.

No holder of shares of the capital stock of any class of the  Association  shall
have any pre-emptive or preferential  right of subscription to any shares of any
class of stock of the Association,  whether now or hereafter  authorized,  or to
any obligations  convertible  into stock of the Association  issued or sold, nor
any right of  subscription  to any thereof other than such, if any, as the Board
of Directors,  in its  discretion,  may from time to time  determine and at such
price as the Board of Directors may from time to time fix.

<PAGE>

The Association, at any time and from time to time, may authorize and issue debt
obligations,   Whether  or  not  subordinated,   without  the  approval  of  the
shareholders.

SIXTH: The Board of Directors shall appoint one of its members President of this
Association,  who shall be  Chairman  of the Board,  unless  the Board  appoints
another Director to be the Chairman. The Board of Directors shall have the power
to appoint one or more Vice Presidents;  and to appoint a Cashier and such other
officers  and  employees  as may be required to  transact  the  business of this
Association. The Board of Directors shall have the power to define the duties of
the officers and employees of the Association; to fix the salaries to be paid to
them;  to  dismiss  them;  to  require  bonds  from them and to fix the  penalty
thereof;  to  regulate  the manner in which any  increase  of the capital of the
Association  shall be made; to manage and administer the business and affairs of
the  Association;  to make all Bylaws that it may be lawful for them to make and
generally  to do and  perform  all  acts  that it may be  legal  for a Board  of
Directors to do and perform.

SEVENTH:  The Board of  Directors,  without need for  approval of  shareholders,
shall  have  the  power to  change  the  location  of the  main  office  of this
Association  to any other place within the limits of Cincinnati,  Ohio,  without
the  approval  of the  shareholders,  and shall have the power to  establish  or
change the  location of any branch or branches of the  Association  to any other
location, without the approval of the shareholders,  but subject to the approval
of the Comptroller of the Currency.

EIGHTH:  The  corporate  existence  of this  Association  shall  continue  until
terminated in accordance with the laws of the United States.

NINTH:  The Board of Directors of this  Association,  the Chairman of the Board,
the President,  or any three or more shareholders owning, in the aggregate,  not
less  than  twenty-five  percent  of the stock of this  Association,  may call a
special meeting of shareholders at any time.  Unless  otherwise  provided by the
laws of the United  States,  a notice of the time,  place,  and purpose of every
annual and special  meeting of the  shareholders  shall be given by  first-class
mail,  postage  prepaid,  mailed  at least  ten  days  prior to the date of such
meeting to each  shareholder of record at his address as shown upon the books of
this Association.

TENTH: Any person, his heirs, executors,  or administrators,  may be indemnified
or reimbursed by the Association for reasonable  expenses  actually  incurred in
connection with any action, suit, or proceeding,  civil or criminal, to which he
or they shall be made a party by reason of his being or having  been a director,
officer,  or  employee  of the  Association  or of  any  firm,  corporation,  or
organization  which  he  served  in any  such  capacity  at the  request  of the
Association.  Provided,  however,  that no  person  shall be so  indemnified  or
reimbursed  in relation to any matter in such action,  suit, or proceeding as to
which he shall  finally be  adjudged  to have been guilty of or liable for gross
negligence, willful misconduct or criminal acts in the performance of his duties
to  the  Association.  And,  provided  further,  that  no  person  shall  be  so
indemnified  or  reimbursed  in relation to any matter in such action,  suit, or
proceeding  which has been made the subject of a  compromise  settlement  except
with the approval of a court of competent jurisdiction, or the holders of record
of a majority  of the  outstanding  shares of the  Association,  or the Board of


<PAGE>

Directors,  acting by vote of Directors not parties to the same or substantially
the same action, suit or proceeding, constituting a majority of the whole number
of Directors. And, provided further, that no director, officer or employee shall
be so  indemnified  or  reimbursed  for  expenses,  penalties or other  payments
incurred in an administrative  proceeding or action instituted by an appropriate
bank regulatory  agency where said proceeding or action results in a final order
assessing civil money penalties or requiring affirmative action by an individual
or individuals in the form of payments to this Association.  The foregoing right
of indemnification  shall not be exclusive of other rights to which such person,
his heirs, executors, or administrators, may be entitled as a matter of law. The
Association  may,  upon  the  affirmative  vote of a  majority  of its  Board of
Directors,  purchase  insurance for the purpose of  indemnifying  its directors,
officers and other employees to the extent that such  indemnification is allowed
in the preceding paragraph. Such insurance may, but need not, be for the benefit
of all directors, officers, or employees.

ELEVENTH: These Articles of Association may be amended at any regular or special
meeting of the shareholders by the affirmative vote of the holders of a majority
of the stock of this  Association,  unless the vote of the  holders of a greater
amount of stock is  required  by law and in that case by the vote of the holders
of such greater amount.

r/legal/articles


<PAGE>

                                    Exhibit 3



Comptroller of the Currency
Administrator of National Banks

                         Certificate of Fiduciary Powers



I, John D. Hawke, Jr., Comptroller of the Currency, do hereby certify that:



1.       The Comptroller of the Currency, pursuant to Revised Statutes 324, et

seq., as amended, 12 U.S.C. 1, et seq., as amended, has possession, custody

and control of all records pertaining to the chartering of all National Banking

Associations.



2.  "Firstar Bank, National Association," Cincinnati, Ohio, (Charter No.

24), was granted, under the hand and seal of the Comptroller, the right to act

in all fiduciary capacities authorized under the provisions of the Act of

Congress approved September 28, 1062, 76 Stat. 668, 12 U.S.C. 92a, and

that the authority so granted remains in full force and effect on the date of

this Certificate.



                           IN TESTIMONY WHEREOF, I have hereunto

                           subscribed my name and caused my seal of office to

(seal)                     be affixed to these presents at the Treasury

                           Department in the City of Washington and District

                           Of Columbia, this 19th day of October, 1999.



                           /s/ John D. Hawke, Jr.
                           -----------------------

                           Comptroller of the Currency


<PAGE>


                                    Exhibit 4


                               FIRSTAR BANK, N. A.

                                     BY-LAWS


                                    ARTICLE I
                            MEETINGS OF SHAREHOLDERS


SECTION 1. ANNUAL MEETING
- -------------------------

The annual  meeting of  shareholders  shall be held in the main banking house of
the  Association  at 11:00  a.m.  on the  second  Tuesday in March of each year.
Notice of such meeting  shall be mailed to  shareholders  not less than ten (10)
nor more than sixty (60) days prior to the meeting date.

SECTION 2. SPECIAL MEETINGS
- ---------------------------

Special  meetings of shareholders  may be called and held at such times and upon
such notice as is specified in the Articles of Association.

SECTION 3. QUORUM
- -----------------

A majority of the  outstanding  capital stock  represented in person or by proxy
shall constitute a quorum of any meeting of the  shareholders,  unless otherwise
provided by law,  but less than a quorum may adjourn any  meeting,  from time to
time, and the meeting may be held as adjourned without further notice.

SECTION 4. INSPECTORS
- ---------------------

The Board of  Directors  may,  and in the  event of its  failure  so to do,  the
Chairman of the Board shall appoint  Inspectors of Election who shall  determine
the  presence  of  quorum,  the  validity  of  proxies,  and the  results of all
elections  and all other matters  voted upon by  shareholders  at all annual and
special meetings of shareholders.

SECTION 5. VOTING
- -----------------

In deciding on questions at meetings of shareholders,  except in the election of
directors,  each  shareholder  shall be  entitled  to one vote for each share of
stock held. A majority of votes cast shall  decide each matter  submitted to the
shareholders, except where by law a larger vote is required. In all elections of
directors,  each  shareholder  shall have the right to vote the number of shares
owned by him for as many  persons as there are  directors  to be elected,  or to
cumulate  such  shares  and give one  candidate  as many  votes as the number of
directors multiplied by the number of his shares equal, or to distribute them on
the same principle among as many candidates as he shall think fit.

<PAGE>

SECTION 6. WAIVER AND CONSENT
- -----------------------------

The shareholders may act without notice and/or a meeting by a unanimous  written
consent by all shareholders.


                                   ARTICLE II

SECTION 1. TERM OF OFFICE
- -------------------------

The directors of this Association shall hold office for one year and until their
successors are duly elected and qualified.

SECTION 2. REGULAR MEETINGS
- ---------------------------

The  organizational  meeting of the Board of Directors shall be held on the same
date as soon as practical  following the annual meeting of  shareholders  at the
main banking house.  Other regular  meetings of the Board of Directors  shall be
held without notice at 11:00 a.m. on the second  Tuesday of June,  September and
December,  at the main banking house,  or, provided notice is given by telegram,
letter,  telephone or in person to every Director, at such time and place as may
be  designated  in the notice of the  meeting.  When any regular  meeting of the
Board falls on a holiday, the meeting shall be held on the next banking business
day, unless the Board shall designate some other day.

SECTION 3. SPECIAL MEETINGS
- ---------------------------

Special  meetings of the Board of Directors may be called by the Chairman of the
Board of the Association,  or at the request of three or more Directors.  Notice
of the time,  place and  purposes of such  meetings  shall be given by telegram,
letter, telephone or in person to every Director.

SECTION 4. QUORUM
- -----------------

A majority of the entire  membership  of the Board shall  constitute a quorum of
any meeting of the Board.

SECTION 5. NECESSARY VOTE
- -------------------------

A majority of those Directors  present and voting at any meeting of the Board of
Directors shall decide each matter  considered,  except where otherwise required
by law or the Articles or By-Laws of this Association.

SECTION 6. COMPENSATION
- -------------------------

Directors,  excluding  full-time  employees  of the  Bank,  shall  receive  such
reasonable  compensation  as may be  fixed  from  time to time by the  Board  of
Directors.

SECTION 7. ELECTION-AGE LIMITATION
- ----------------------------------

No  person  shall be  elected  or  re-elected  a  Director  after  reaching  his
seventieth  (70th)  birthday,  provided  that any person  who is a  Director  on
December 10, 1985, may continue to be re-elected a Director until he reaches his
seventy-fifth (75th) birthday.

SECTION 8. RETIREMENT-AGE LIMITATION
- ------------------------------------

Every  Director  of the Bank  shall  retire no later  than the first  month next
following  his  seventieth  (70th)  birthday,  except  for any  person who was a
Director on December 10, 1985,  who shall retire not later than the first of the
next month following his seventy-fifth (75th) birthday.

SECTION 9. DIRECTORS EMERITUS
- -----------------------------
<PAGE>

The Board shall have the right from time to time to choose as Directors Emeritus
persons  who have had prior  service as members of the Board and who may receive
such compensation as shall be fixed from time to time by the Board of Directors.


                                   ARTICLE III
                                    OFFICERS

SECTION 1. WHO SHALL CONSTITUTE
- -------------------------------

The officers of the Association shall be a Chairman of the Board, a President, a
Secretary, and other officers such as Chairman of the Executive Committee,  Vice
Chairman of the Board, Executive Vice Presidents,  Senior Vice Presidents,  Vice
Presidents,  Assistant Secretaries,  Trust Officers,  Trust Investment Officers,
Trust Real Estate Officers,  Assistant Trust Officers,  a Controller,  Assistant
Controller,  an Auditor and  Assistant  Auditors,  as the Board may appoint from
time to time.  Any person may hold two offices.  The Chairman of the Board,  all
Vice  Chairmen of the Board and the  President  shall at all times be members of
the Board of Directors.

SECTION 2. TERM OF OFFICE
- -------------------------

All  officers  shall be elected for and shall hold office for one year and until
their successors are elected and qualified, subject to the right in the Board of
Directors by a majority  vote of the entire  membership to discharge any officer
at any time.

SECTION 3. CHAIRMAN OF THE BOARD
- --------------------------------

The  Chairman of the Board shall have  general  executive  powers and duties and
shall  perform  such other  duties as may be  assigned  from time to time by the
Board of  Directors.  In  addition,  unless  the Board of  Directors  shall have
designated the President to be the Chief Executive Officer,  the Chairman of the
Board  shall be the Chief  Executive  Officer  and shall have all the powers and
duties of the Chief Executive  Officer.  He shall, when present,  preside at all
meetings of  shareholders  and directors and shall be ex officio a member of all
committees  of the Board.  He shall name all  members of the  committees  of the
Board, subject to the confirmation thereof by the Board.

If he is  Chief  Executive  Officer,  in the  event  there is a  vacancy  in the
position  of  President  or in the event of the  absence  or  incapacity  of the
President,  the Chairman  may appoint,  or in the event of his failure to do so,
the Board of Directors or the Executive  Committee  thereof may  designate,  any
Vice  Chairman of the Board,  any  Executive  Vice  President or any Senior Vice
President of the Association  temporarily to exercise the powers and perform the
duties of the Chairman as Chief Executive Officer when the Chairman is absent or
incapacitated.

If the President has been  designated  Chief  Executive  Officer by the Board of
Directors, in the event that there is a vacancy in the position of the President
or in the event of the absence or  incapacity  of the  President,  the  Chairman
shall be the Chief  Executive  Officer of the Association and shall have all the
powers and perform all the duties of the President, including the powers to name
temporarily a Chief Executive Officer to serve in the absence of the Chairman.

SECTION 4. PRESIDENT
- --------------------

The President shall have general  executive  powers and duties and shall perform
such  other  duties  as may be  assigned  from  time  to time  by the  Board  of
Directors.  In addition, if designated by the Board of Directors,  the President
shall be the Chief Executive Officer and shall have all the powers and duties of
the Chief  Executive  Officer,  including  the same power to name  temporarily a
Chief  Executive  Officer to serve in the absence of the President if there is a
vacancy  in the  position  of the  Chairman  or in the event of the  absence  or
incapacity of the Chairman.

<PAGE>

If the  Chairman has been  designated  Chief  Executive  Officer by the Board of
Directors,  in the event that there is a vacancy in the position of the Chairman
of the Board or in the event of the absence or incapacity of the Chairman of the
Board, the President shall be the Chief Executive Officer of the Association and
shall have all the  powers and  perform  all the duties of the  Chairman  of the
Board, including the same power to name temporarily a Chief Executive Officer to
serve in the absence of the President.

SECTION 5. CHAIRMAN OF THE EXECUTIVE COMMITTEE
- ----------------------------------------------

The Board of Directors shall have the power to elect a Chairman of the Executive
Committee. Any such Chairman of the Executive Committee shall participate in the
formation of the policies of the Association and shall have such other duties as
may be  assigned  to him from time to time by the  President  or by the Board of
Directors.

SECTION 6. VICE CHAIRMEN OF THE BOARD
- -------------------------------------

The Board of Directors  shall have the power to elect one or more Vice  Chairmen
of the Board of Directors. Any such Vice Chairmen of the Board shall participate
in the  formation of the policies of the  Association  and shall have such other
duties as may be assigned to him from time to time by the  Chairman of the Board
or by the Board of Directors.

SECTION 7. OTHER OFFICERS
- -------------------------

The Secretary and all other officers  appointed by the Board of Directors  shall
have such  duties as defined by law and as may from time to time be  assigned to
them by the Chief Executive Officer or the Board of Directors.

SECTION 8. RETIREMENT
- ---------------------

Every  officer of the  Association  shall retire not later than the first of the
month next  following  his 65th  birthday.  The Board of  Directors  may, in its
discretion,  set the retirement  date and terms of retirement of an officer at a
date later than provided above.


                                   ARTICLE IV
                                   COMMITTEES

SECTION 1. EXECUTIVE COMMITTEE
- ------------------------------

There shall be a standing committee of Directors in this Association to be known
as the Executive Committee. This committee shall meet at 11:00 a.m. on the-first
and last two  Tuesdays  of each  month.  It shall  have all of the powers of the
Board of Directors  between  meetings of the Board,  except as the Board only by
law is authorized to perform or exercise. All actions of the Executive Committee
shall be reported to the Board of Directors.

In the event that any member of the  Executive  Committee  is unable to attend a
meeting of that  committee,  the Chairman of the Board or the President  may, at
his discretion, appoint another Director to attend said meeting of the Executive
Committee and for that meeting to serve as a member of the  Executive  Committee
with full power to act in place of the absent regular member of the Committee.

SECTION 2. COMPENSATION COMMITTEE
- ---------------------------------

There shall be a standing committee of Directors of this Association to be known
as the Compensation Committee who shall review the compensation of all Executive
Officers and those  officers who  participate in the Profit Sharing Pool as well
as  fees  for  directors  of  the  Association.  They  will  recommend  specific
compensation arrangements to the Board of Directors for their confirmation.

SECTION 3. COMMITTEE ON AUDIT
- -----------------------------
<PAGE>

There shall be a standing committee of Directors of this Association to be known
as the Committee on Audit, none of whose members shall be active officers of the
Association.  This  Committee  shall  make  or  cause  to  be  made  a  suitable
examination of the affairs of the Association and the Trust  Department at least
once during each period of twelve months.  The results of such examination shall
be  reported  in writing  to the Board at the next  regular  meeting  thereafter
stating  whether the Association  and/or Trust  Department is in a sound solvent
condition,  whether  adequate  internal  audit controls and procedures are being
maintained and make such recommendations as it deems advisable.

SECTION 4. TRUST COMMITTEE
- --------------------------

There shall be a standing committee of Directors of this Association to be known
as the Trust  Committee.  The Trust Committee  shall  determine  policies of the
Department and review actions of the Trust Investment Committee.  All actions of
the Trust Committee shall be reported to the Board of Directors.

SECTION 5. TRUST POLICY COMMITTEE
- ---------------------------------

There shall be a standing committee of this Association to be known as the Trust
Policy  Committee  composed  of officers of the  Association.  The Trust  Policy
Committee  or  such  officers  as may be duly  designated  by the  Trust  Policy
Committee,  shall pass upon the  acceptance  of all  trusts,  the closing out or
relinquishment  of all trusts and the making,  retention,  or disposition of all
investments of trust funds in conformity with policies  established by the Trust
Committee.  Actions of the Trust Policy Committee shall be reported to the Trust
Committee.

SECTION 6. PENSION COMMITTEE
- ----------------------------

There shall be a standing committee of directors or officers of this Association
to be known as the  Pension  Committee,  who shall have the powers and duties as
set  forth  in the  Association's  Employees'  Pension  Plan.  A  report  of the
condition  of the  pension  fund  shall be  submitted  annually  to the Board of
Directors.

SECTION 7. OTHER COMMITTEES
- ---------------------------

The Chairman may appoint,  from time to time, other committees for such purposes
and with such powers as he or the Board may direct.


                                    ARTICLE V
                                      SEAL

SECTION 1. IMPRESSION
- ---------------------

The following is an impression of the seal of this Association.


G:CORPSEC:BANK:BYLAWS


<PAGE>
                                    EXHIBIT 6



                CONSENT OF THE TRUSTEE REQUIRED BY SECTION 321(b)
                       OF THE TRUST INDENTURE ACT OF 1939



Firstar Bank,  N.A., as Trustee  herein named,  hereby  consents that reports of
examination of said Trustee by Federal and State authorities may be furnished by
such  authorities  to  the  Securities  and  Exchange  Commission  upon  request
therefor.


                                      FIRSTAR BANK, N.A.
                                             (Trustee)


                                      By: /s/ Yvonne Siira
                                          ----------------
                                          Yvonne Siira, Assistant Vice President
                                          --------------------------------------
                                          (Name and title)

                                      By: /s/ Pamela Warner
                                          -----------------
                                          Pamela Warner, Assistant Secretary
                                          ----------------------------------
                                          (Name and title)


Dated:  December 13, 1999

<PAGE>

                                    EXHIBIT 7


Legal Title of Bank:  Firstar Bank  Milwaukee,  N.A. Call Date:  12/31/98 ST-BK:
55-9180 FFIEC 031
Address: 777 East Wisconsin Avenue            Page RC-1
City, State Zip:  Milwaukee, Wisconsin 53202
FDIC Certificate No.: | 0 | 5 | 3 | 0 | 8 |

             CONSOLIDATED REPORT OF CONDITION FOR INSURED COMMERCIAL
             AND STATE-CHARTERED SAVINGS BANKS for December 31, 1998


All  schedules  are to be reported in  thousands  of dollars.  Unless  otherwise
indicated,  report the amount  outstanding  as of the last  business  day of the
quarter.

<TABLE>
                                        Schedule RC--Balance Sheet
<CAPTION>

                                                                                                       |     C400  |
                                         Dollar Amounts in Thousands                            RCFD Bil Mil Thou
- -----------------------------------------------------------------------------------------------------------------
ASSETS
<S>                                                                               <C>                   <C>           <C>
1.   Cash and balances due from depository institutions (from Schedule RC-A):  .  | / / / / / / / / / / / / / / |
     a.  Noninterest-bearing balances and currency and coin (1).................      0081                940,843     1.a.
     b.  Interest-bearing balances (2)..........................................      0071                  4,624     1.b.
2.   Securities   ..............................................................  | / / / / / / / / / / / / / / |
     a.  Held-to-maturity securities (from Schedule RC-B, Column A):............      1754                      0     2.a.
     b.  Available-for-sale securities (from Schedule RC-B, Column D)...........      1773                911,883     2.b.
3.   Federal funds sold and securities purchased under agreements to resell  ...      1350                936,258     3.
4.   Loans and lease financing receivables:.....................................  | / / / / / / / / / / / / / / |
     a.  Loans and leases, net of unearned income ..............................  | / / / / / / / / / / / / / / |
         (from Schedule RC-C).........................  | RCFD 2122 |  5,832,760  | / / / / / / / / / / / / / / |     4.a.
     b.  LESS:  Allowance for loan and lease losses.  | RCFD 3123 |       84,275  | / / / / / / / / / / / / / / |     4.b.
     c.  LESS:  Allocated transfer risk reserve.. | RCFD 3128 |                0  | / / / / / / / / / / / / / / |     4.c.
     d.  Loans and leases, net of unearned income, allowance, and reserve.......  | / / / / / / / / / / / / / / |
         (Item 4.a. minus 4.b. and 4.c.)........................................      2125              5,748,485     4.d.
5.   Trading assets (from Schedule RC-D)........................................      3545                 13,839     5.
6.   Premises and fixed assets (including capitalized leases)...................      2145                145,301     6.
7.   Other real estate owned (from Schedule RC-M)...............................      2150                     88     7.
8.   Investments in unconsolidated subsidiaries and associated companies........  | / / / / / / / / / / / / / / |
     (from Schedule RC-M).......................................................      2130                      0     8.
9.   Customers' liability to this bank on acceptances outstanding...............      2155                  9,891     9.
10.  Intangible assets (from Schedule RC-M).....................................      2143                110,634     10.
11.  Other assets (from Schedule RC-F)..........................................      2160                147,531     11.
12.  Total assets (sum of items 1 through 11)...................................      2170              8,969,377     12.

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

(1)  Includes  cash items in  process  of  collection  and  unposted  debits
(2)  Includes time certificates of deposit not held for trading

</TABLE>

<TABLE>
<CAPTION>

LIABILITIES
<S>                                                                               <C>                   <C>           <C>
13.  Deposits:    ..............................................................  | / / / / / / / / / / / / / / |
     a.  In domestic offices (sum of totals of columns A and C from.............  | / / / / / / / / / / / / / / |
         Schedule RC-E, part 1).................................................  RCON 2200             5,325,682     13.a.
         (1)  Noninterest-bearing (1)...................| RCON 6631 |  1,458,862  | / / / / / / / / / / / / / / |     13.a.(1)
         (2)  Interest-bearing..........................| RCON 6636 |  3,866,820  | / / / / / / / / / / / / / / |     13.a.(2)
     b.  In foreign offices, Edge and Agreement ................................  | / / / / / / / / / / / / / / |
         subsidiaries, and IBFs (from Schedule RC-E, part II)...................  RCFN 2200               404,324     13.b.
         (1)  Noninterest-bearing.......................| RCFN 6631 |        582  | / / / / / / / / / / / / / / |     13.b.(1)
         (2)  Interest-bearing..........................| RCFN 6636 |    403,742  | / / / / / / / / / / / / / / |     13.b.(2)
</TABLE>

<PAGE>

<TABLE>
                                        Schedule RC--Balance Sheet
<CAPTION>

                                                                                                       |     C400  |
                                         Dollar Amounts in Thousands                            RCFD Bil Mil Thou
- -----------------------------------------------------------------------------------------------------------------
LIABILITIES (continued)
<S>                                                                               <C>                   <C>           <C>
14.  Federal funds purchased and securities sold under agreements to repurchase.  RCON 2800             1,834,422     14.
15.  a.  Demand notes issued to the U.S. Treasury...............................  RCON 2840                99,271     15.a.
     b.  Trading liabilities (From Schedule RC-D)...............................  RCFD 3548                12,368     15.b.
16.  Other borrowed money (including mortgage indebtedness and obligations under  | / / / / / / / / / / / / / / |
     capitalized leases) .......................................................  | / / / / / / / / / / / / / / |
     a.  With a remaining maturity of one year or less..........................  RCFD 2332                25,937     16.a.
     b.  With a remaining maturity of more than one year through three years....  RCFD A547                     0     16.b.
     c.  With a remaining maturity of more than three years.....................  RCFD A547                20,000     16.c.
17.  Not applicable.                                                              | / / / / / / / / / / / / / / |
18.  Bank's liability on acceptances executed and outstanding...................  RCFD 2920                 9,891     18.
19.  Subordinated notes and debentures (2)......................................  RCFD 3200               413,191     19.
20.  Other liabilities (from Schedule RC-G).....................................  RCFD 2930               190,228     20.
21.  Total liabilities (sum of items 13 through 20).............................  RCFD 2948             8,335,314     21.
22.  Not applicable

EQUITY CAPITAL
23.  Perpetual preferred stock and related surplus .............................  RCFD 3838                     0     23.
24.  Common stock ..............................................................  RCFD 3230                76,600     24.
25.  Surplus (exclude all surplus related to preferred stock)...................  RCFD 3839               139,073     25.
26.  a. Undivided profits and capital reserves..................................  RCFD 3632               400,214     26.a.
     b. Net unrealized holding gains (losses) on available-for-sale securities..  RCFD 8434                18,176     26.b.
27.  Cumulative foreign currency translation adjustments........................  RCFD 3284                     0     27.
28.  Total equity capital (sum of items 23 through 27)..........................  RCFD 3210               634,063     28.
29.  Total liabilitiesand equity capital (sum of items 21 and 28)...............  RCFD 3300             8,969,377     29.

MEMORANDUM
To be reported only with the March Report of Condition.
1. Indicate in the box at the right the number of the statement below that best
   describes the most comprehensive level of auditing work performed for the                                          Number
   bank by independent external auditors as of any date during 1997.............  RCFD 6724                   N/A     M.1.
</TABLE>

<TABLE>
<CAPTION>
<S>    <C>                                                    <C>
       1 = Independent  audit of the bank  conducted in       5 = Review of the  bank's  financial  statements
           accordance with generally  accepted auditing           by external auditors.
           standards by a certified  public  accounting
           firm which submits a report on the bank.
       2 = Independent   audit  of  the  bank's  parent       6 = Compilation   of   the   bank's    financial
           holding  company   conducted  in  accordance           statements by external auditors.
           with generally  accepted auditing  standards
           by a certified public  accounting firm which
           submits   a  report   on  the   consolidated
           holding   company   (but  not  on  the  bank
           separately).
       3 = Directors'    examination    of   the   bank       7 = Other  audit   procedures   (excluding   tax
           conducted  in  accordance   with   generally           preparation work).
           accepted  auditing  standards by a certified
           public  accounting  firm (may be required by
           state chartering authority).
       4 = Directors'    examination    of   the   bank       8 = No external audit work.
           performed by other  external  auditors  (may
           be required by state chartering authority).

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

(1) Includes  total demand  deposits  and  noninterest-bearing  time and savings
deposits.
(2) Includes limited-life preferred stock and related surplus.

</TABLE>





                              LETTER OF TRANSMITTAL

                         ALLIANT ENERGY RESOURCES, INC.

                                Offer to Exchange
                     Registered 7 3/8% Senior Notes due 2009
                           For Any and All Outstanding
                    Unregistered 7 3/8% Senior Notes due 2009
               Pursuant to the Prospectus dated ____________, 1999

- --------------------------------------------------------------------------------
       THE EXCHANGE OFFER WILL EXPIRE AT 5:00 P.M. NEW YORK CITY TIME, ON
          ____________, 2000, UNLESS EXTENDED (THE "EXPIRATION DATE").
- --------------------------------------------------------------------------------

         The Exchange Agent for the Exchange Offer is Firstar Bank, N.A.

       By Facsimile Transmission            By Registered or Certified Mail,
   (For Eligible Institutions Only):           Hand or Overnight Courier:
            (414) 276-4226                         Firstar Bank, N.A.
                                              1555 North RiverCenter Drive
         Confirm by Telephone:                          Suite 301
            (414) 905-5008                     Milwaukee, Wisconsin 53212
                                              Attention: Ms. Pamela Warner



     DELIVERY  OF THIS  LETTER OF  TRANSMITTAL  TO AN ADDRESS  OTHER THAN AS SET
FORTH ABOVE, OR  TRANSMISSION  OF  INSTRUCTIONS  VIA FACSIMILE OTHER THAN AS SET
FORTH ABOVE, WILL NOT CONSTITUTE A VALID DELIVERY.

     PLEASE READ THE ACCOMPANYING  INSTRUCTIONS CAREFULLY BEFORE COMPLETING THIS
LETTER OF TRANSMITTAL.

     The undersigned  acknowledges  that he or she has received and reviewed the
Prospectus,  dated  ____________,  1999 (the  "Prospectus"),  of Alliant  Energy
Resources,  Inc., a Wisconsin  corporation (the  "Company"),  and Alliant Energy
Corporation,  a  Wisconsin  corporation,  and this  Letter of  Transmittal  (the
"Letter"),  which together constitute the Company's offer (the "Exchange Offer")
to exchange  its 7 3/8% Senior  Notes due 2009 (the "New Senior  Notes"),  which
have  been  registered  under  the  Securities  Act of  1933,  as  amended  (the
"Securities  Act"),  for a like  principal  amount of the  Company's  issued and
outstanding  unregistered  7 3/8% Senior  Notes due 2009 (the  "Existing  Senior
Notes").

     For each Existing  Senior Note  accepted for  exchange,  the Holder of such
Existing  Senior Note will  receive a New Senior Note having a principal  amount
equal to that of the surrendered Existing Senior Note. The New Senior Notes will
bear interest  from the most recent date to which  interest has been paid on the
Existing  Senior Notes or, if no interest  has been paid on the Existing  Senior
Notes,  from  November 9, 1999.  Accordingly,  registered  Holders of New Senior
Notes on the relevant record date for the first interest  payment date following
the  consummation of the Exchange Offer will receive  interest  accrued from the
most recent  date to which  interest  has been paid or, if no interest  has been

<PAGE>

paid,  from  November 9, 1999.  However,  if that  record  date occurs  prior to
completion  of the  Exchange  Offer,  then the  interest  payable  on the  first
interest  payment date  following the  completion of the Exchange  Offer will be
paid to the registered Holders of the Existing Senior Notes on that record date.
Existing  Senior Notes accepted for exchange will cease to accrue  interest from
and after the date of  consummation of the Exchange Offer and will be cancelled.
Holders of Existing  Senior Notes whose  Existing  Senior Notes are accepted for
exchange  will not receive  any  payment in respect of accrued  interest on such
Existing Senior Notes otherwise  payable on any interest payment date the record
date for which occurs on or after consummation of the Exchange Offer.

     This Letter is to be completed by a Holder of Existing  Senior Notes either
if (1) certificates  are to be forwarded  herewith or (2) tenders are to be made
by book-entry  transfer to the account  maintained by the Exchange  Agent at The
Depository Trust Company ("DTC" or the "Book-Entry  Transfer Facility") pursuant
to the  procedures  set  forth in "The  Exchange  Offer -  Book-Entry  Transfer"
section of the Prospectus.  Holders of Existing Senior Notes whose  certificates
are not immediately  available,  or who are unable to deliver their certificates
or confirmation of the book-entry tender of their Existing Senior Notes into the
Exchange  Agent's  account at the  Book-Entry  Transfer  Facility (a "Book-Entry
Confirmation")  and all other documents  required by this Letter to the Exchange
Agent on or prior to the  Expiration  Date,  must tender their  Existing  Senior
Notes according to the guaranteed delivery procedures set forth in "The Exchange
Offer  -  Guaranteed  Delivery  Procedures"  section  of  the  Prospectus.   See
Instruction  1. Delivery of documents to the Book-Entry  Transfer  Facility does
not constitute delivery to the Exchange Agent.

     Tenders by  book-entry  transfer  also may be made by delivering an Agent's
Message in lieu of this  Letter.  The term  "Agent's  Message"  means a message,
transmitted by the Book-Entry  Transfer Facility to and received by the Exchange
Agent and forming a part of a  Book-Entry  Confirmation,  which  states that the
Book-Entry  Transfer  Facility has received an express  acknowledgment  from the
tendering  participant,  which  acknowledgment  states that such participant has
received  and agrees to be bound by this Letter and the Company may enforce this
Letter against such participant.

     As used in this  Letter,  the term  "Holder"  with  respect to the Exchange
Offer means any person in whose name Existing Senior Notes are registered on the
books of the Company or, with  respect to interests in global notes held by DTC,
any DTC  participant  listed in an  official  DTC  proxy.  The  undersigned  has
completed  the  appropriate  boxes below and signed this Letter to indicate  the
action the undersigned desires to take with respect to the Exchange Offer.

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


                                      -2-
<PAGE>

     List below the Existing Senior Notes to which this Letter  relates.  If the
space provided below is inadequate, the certificate numbers and principal amount
of Existing Senior Notes should be listed on a separate signed schedule  affixed
hereto.

- --------------------------------------------------------------------------------
                  DESCRIPTION OF EXISTING SENIOR NOTES TENDERED
- --------------------------------------------------------------------------------
                                               Aggregate
Name(s) and Address(es) of                  Principal Amount
   Registered Holder(s)      Certificate   of Existing Senior   Principal Amount
(Please fill in, if blank)   Number(s)*          Notes             Tendered**
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
                               Total
- --------------------------------------------------------------------------------
*    Do not complete if Existing  Senior Notes are being  tendered by book-entry
     transfer.
**   A holder will be deemed to have tendered ALL Existing Senior Notes unless a
     lesser  amount is specified in this column.  See  Instruction  2.  Existing
     Senior Notes tendered hereby must be in  denominations  of principal amount
     of $1,000 and any integral multiples thereof. See Instruction 1.

|_|  CHECK  HERE IF  TENDERED  EXISTING  SENIOR  NOTES  ARE BEING  DELIVERED  BY
     BOOK-ENTRY  TRANSFER MADE TO THE ACCOUNT  MAINTAINED BY THE EXCHANGE  AGENT
     WITH THE BOOK-ENTRY TRANSFER FACILITY AND COMPLETE THE FOLLOWING:

     Name of Tendering Institution______________________________________________
     Account Number______________     Transaction Code Number___________________

|_|  CHECK HERE IF TENDERED  EXISTING SENIOR NOTES ARE BEING DELIVERED  PURSUANT
     TO A NOTICE OF GUARANTEED  DELIVERY  PREVIOUSLY  SENT TO THE EXCHANGE AGENT
     AND COMPLETE THE FOLLOWING:

     Name(s) of Registered Holder(s)____________________________________________
     Window Ticket Number (if any)______________________________________________
     Date of Execution of Notice of Guaranteed  Delivery________________________
     Name of Institution Which Guaranteed Delivery______________________________
     If Delivered by Book-Entry Transfer, Complete the Following:
     Account Number______________     Transaction Code Number___________________

|_|  CHECK HERE IF YOU ARE A  BROKER-DEALER  AND WISH TO  RECEIVE 10  ADDITIONAL
     COPIES OF THE  PROSPECTUS  AND 10 COPIES OF ANY  AMENDMENTS OR  SUPPLEMENTS
     THERETO.
     Name:______________________________________________________________________
     Address:___________________________________________________________________


                                      -3-
<PAGE>

                     NOTE: SIGNATURES MUST BE PROVIDED BELOW
               PLEASE READ CAREFULLY THE ACCOMPANYING INSTRUCTIONS

Ladies and Gentlemen:

     Upon the terms and subject to the  conditions  of the Exchange  Offer,  the
undersigned  hereby  tenders to the Company the  aggregate  principal  amount of
Existing  Senior  Notes  indicated  on page 3 of this  Letter.  Subject  to, and
effective  upon,  the  acceptance  for  exchange of the  Existing  Senior  Notes
tendered hereby, the undersigned hereby sells, assigns and transfers to, or upon
the order of, the Company all right,  title and interest in and to such Existing
Senior Notes as are being tendered hereby.

     The undersigned  hereby  irrevocably  constitutes and appoints the Exchange
Agent as the  undersigned's  true and  lawful  agent and  attorney-in-fact  with
respect to such tendered Existing Senior Notes, with full power of substitution,
among  other  things,  to  cause  the  Existing  Senior  Notes  to be  assigned,
transferred and exchanged.  The undersigned  hereby represents and warrants that
the  undersigned  has full  power and  authority  to  tender,  sell,  assign and
transfer the Existing Senior Notes, and to acquire the new Senior Notes issuable
upon the exchange of such tendered  Existing  Senior Notes,  and that,  when the
same are accepted for exchange,  the Company will acquire good and  unencumbered
title  thereto,  free  and  clear  of  all  liens,  restrictions,   charges  and
encumbrances  and not subject to any adverse claim when the same are accepted by
the Company.  The undersigned hereby further represents that: (1) any New Senior
Notes acquired in exchange for Existing  Senior Notes tendered  hereby will have
been acquired in the ordinary  course of business of the person  receiving  such
New Senior Notes, whether or not such person is the undersigned, (2) neither the
Holder  of  such  Existing  Senior  Notes  nor  any  such  other  person  has an
arrangement or understanding  with any person to participate in the distribution
of such New Senior  Notes,  and (3) neither the Holder of such  Existing  Senior
Notes or any such other person is an  "affiliate,"  as defined in Rule 405 under
the Securities Act of the Company.

     The  undersigned  acknowledges  that this  Exchange  Offer is being made in
reliance  on  interpretations  by the  staff  of  the  Securities  and  Exchange
Commission  (the  "SEC"),  as set  forth in  no-action  letters  issued to third
parties,  that the New Senior  Notes issued  pursuant to the  Exchange  Offer in
exchange  for the Existing  Senior  Notes may be offered for resale,  resold and
otherwise  transferred by Holders thereof (other than any such Holder that is an
"affiliate"  of the Company  within the meaning of Rule 405 under the Securities
Act),  without   compliance  with  the  registration  and  prospectus   delivery
provisions  of  the  Securities   Act,   provided  that  such  Holders  are  not
broker-dealers,  such New Senior Notes are  acquired in the  ordinary  course of
such Holders'  business and such Holders have no  arrangement  or  understanding
with any person to  participate  in the  distribution  of such New Senior Notes.
However,  the SEC has not  considered  the  Exchange  Offer in the  context of a
no-action  letter and there can be no assurance  that the staff of the SEC would
make a similar  determination  with  respect to the  Exchange  Offer as in other
circumstances.  If any  Holder  is an  affiliate  of  the  Company,  or has  any
arrangement or understanding  with respect to the distribution of the New Senior
Notes to be acquired pursuant to the Exchange Offer, such Holder (i) cannot rely
on the applicable  interpretations of the staff of the SEC, (ii) is not entitled
and will not be permitted to tender  Existing Senior Notes in the Exchange Offer
and (iii) must comply with the registration and prospectus delivery requirements
of  the  Securities  Act in  connection  with  any  resale  transaction.  If the
undersigned  is a  broker-dealer  that will receive New Senior Notes for its own
account in exchange for Existing  Senior Notes,  it represents that the Existing
Senior Notes to be exchanged  for the New Senior Notes were  acquired by it as a
result of market-making  activities or other trading activities and acknowledges
that it will deliver a prospectus meeting the requirements of the Securities Act
in  connection  with  any  resale  of such  New  Senior  Notes;


                                      -4-

<PAGE>

however,  by so  acknowledging  and  by  delivering  a  prospectus  meeting  the
requirements of the Securities Act, the undersigned  will not be deemed to admit
that it is an "underwriter" within the meaning of the Securities Act.

     The  undersigned  will,  upon request,  execute and deliver any  additional
documents  reasonably  deemed by the Company to be  necessary  or  desirable  to
complete the sale, assignment and transfer of the Existing Senior Notes tendered
hereby.  All  authority  conferred  or agreed to be conferred in this Letter and
every  obligation  of the  undersigned  hereunder  shall  be  binding  upon  the
successors,  assigns, heirs, executors,  administrators,  trustees in bankruptcy
and legal  representatives  of the undersigned and shall not be affected by, and
shall survive,  the death or incapacity of the  undersigned.  This tender may be
withdrawn  only in  accordance  with the  procedures  set forth in "The Exchange
Offer - Withdrawal Rights" section of the Prospectus.

     Unless  otherwise  indicated herein in the box entitled  "Special  Issuance
Instructions"  below,  please  deliver the New Senior Notes (and, if applicable,
substitute  certificates  representing  Existing  Senior  Notes for any Existing
Senior Notes not exchanged) in the name of the  undersigned or, in the case of a
book-entry  delivery  of  Existing  Senior  Notes,  please  credit  the  account
indicated  above  maintained at the  Book-Entry  Transfer  Facility.  Similarly,
unless   otherwise   indicated   under  the  box  entitled   "Special   Delivery
Instructions"  below,  please  send the New Senior  Notes (and,  if  applicable,
substitute  certificates  representing  Existing  Senior  Notes for any Existing
Senior Notes not exchanged) to the undersigned at the address shown above in the
box entitled "Description of Existing Senior Notes."

     The  undersigned,  by completing the box entitled  "Description of Existing
Senior  Notes" on page 3 of this Letter and signing this Letter,  will be deemed
to have tendered the Existing Senior Notes as set forth in such box on page 3 of
this Letter.


                                      -5-
<PAGE>

- --------------------------------------  --------------------------------------
     SPECIAL ISSUANCE INSTRUCTIONS          SPECIAL DELIVERY INSTRUCTIONS
      (See Instructions 3 and 4)              (See Instructions 3 and 4)

   To be  completed  ONLY if  Existing     To be  completed  ONLY if  Existing
Senior Notes not exchanged  and/or New  Senior Notes not exchanged  and/or new
Senior  Notes  are to be issued in the  Senior Notes are to be sent to someone
name  of   someone   other   than  the  other than the undersigned,  or to the
undersigned,  or  if  Existing  Senior  undersigned  at an address  other than
Notes delivered by book-entry transfer  shown in the box entitled "Description
which are not  accepted  for  exchange  of Existing  Senior Notes Tendered" on
are to be  returned  by  credit  to an  this Letter.
account  maintained at the  Book-Entry
Transfer   Facility   other  than  the
account indicated above.                Mail:   |_| New Senior Notes
                                                |_| Existing Senior Notes
Issue: |_| New Senior Notes
       |_| Existing Senior Notes        Name(s) _____________________________
                                                  (Please Type or Print)

Name(s) _____________________________           _____________________________
           (Please Type or Print)

        _____________________________   Address _____________________________
                                                _____________________________
Address _____________________________
        _____________________________

Taxpayer   Identification   or  Social
Security No.
______________________________________

|_| Credit unexchanged Existing Senior
    Notes   delivered  by   book-entry
    transfer    to   the    Book-Entry
    Transfer   Facility   account  set
    forth below.


______________________________________
(Book-Entry  Transfer Facility Account
   Number, if applicable)


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


                                       -6-
<PAGE>

- --------------------------------------------------------------------------------
                     ALL TENDERING HOLDERS PLEASE SIGN HERE
                   (Complete Substitute Form W-9 on next page)

x    _________________________________________   ________________, 2000
                                                     Date

x    _________________________________________   ________________, 2000
                                                     Date


Area Code and Telephone Number__________________________________________________

     This  Letter   must  be  signed  by  the   registered   holder(s)   or  DTC
participant(s)  exactly as the name(s) appear(s) on the Existing Senior Notes or
on a  security  position  listing  or by  any  person(s)  authorized  to  become
registered  holder(s) by endorsements  and documents  transmitted  herewith.  If
signature is by a trustee, executor,  administrator,  guardian, officer or other
person  acting in a fiduciary or  representative  capacity,  please  provide the
following information. See Instruction 3.

Name(s):________________________________________________________________________
                             (Please Type or Print)

Capacity (full title):__________________________________________________________

Address:________________________________________________________________________

________________________________________________________________________________

Taxpayer Identification or Social Security No.:_________________________________

________________________________________________________________________________
                               SIGNATURE GUARANTEE
                         (If required by Instruction 3)

Signature(s) Guaranteed
By an Eligible Institution:_____________________________________________________
                                    (Authorized Signature)

Name and Title:   ______________________________________________________________

Name of Firm:___________________________________________________________________

Dated: ________________, 2000

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

IMPORTANT:  This Letter (or a facsimile hereof),  together with the certificates
for Existing  Senior Notes or a Book-Entry  Confirmation  and all other required
documents or The Notice of Guaranteed Delivery, must be received by the Exchange
Agent prior to 5:00 p.m., New York City time, on the Expiration Date.


                                      -7-
<PAGE>

                    TO BE COMPLETED BY ALL TENDERING HOLDERS
                               (See Instruction 5)

________________________________________________________________________________
                        PAYOR'S NAME: Firstar Bank, N.A.
________________________________________________________________________________
SUBSTITUTE                 Part 1 - PLEASE PROVIDE YOUR  Social security number
FORM W-9                   TAXPAYER IDENTIFICATION
                           NUMBER IN THE BOX AT RIGHT    ______________________
                           AND CERTIFY BY SIGNING AND    OR
                           DATING BELOW                  Employer Identification
                                                         number

                                                         _______________________
                           _____________________________________________________

Department of the Treasury Part   2  -   FOR   PAYEES    EXEMPT    FROM     BACK
Internal Revenue Service   WITHHOLDING (See  the  Guidelines  for  Certification
                           of   Taxpayer  Identification  Number  on  Substitute
                           Form W-9).
                           _____________________________________________________
PAYOR'S REQUEST FOR        Part  3  -  CERTIFICATION:  UNDER   THE  PENALTIES OF
TAXPAYER                   PERJURY, I CERTIFY THAT:
IDENTIFICATION
NUMBER AND                 (1)  the  number shown  on  this  form  is my correct
CERTIFICATION                   taxpayer identification  number (or I am waiting
                                for a number to be issued to me);

                           (2)  I am  not  subject to backup  withholding either
                                because:   (a)   I   am   exempt   from   backup
                                withholding,  or (b) I have  not  been  notified
                                by  the  Internal  Revenue  Service  (the "IRS")
                                that  I am  subject to  backup  withholding as a
                                result of  a  failure  to report all interest or
                                dividends,  or (c) the  IRS   has   notified  me
                                that   I  am   no  longer   subject  to   backup
                                withholding; and

                           (3)  any  other  information  provided  on  this form
                                is true and correct.

                           SIGNATURE________________________________
                           DATE___________________

                           You  must   cross   out  item  (2)  of  the  above
                           certification if  you have  been notified  by the IRS
                           that you  are subject  to backup  withholding because
                           of underreporting  of interest or  dividends  on your
                           tax return  and you  have  not been  notified  by the
                           IRS  that   you  are  no  longer  subject  to  backup
                           withholding.

________________________________________________________________________________


                                       -8-
<PAGE>

                                  INSTRUCTIONS

         Forming Part of the Terms and Conditions of the Exchange Offer

1.   Delivery of this Letter and Senior Notes; Guaranteed Delivery Procedures.

     This Letter is to be completed  by Holders of Existing  Senior Notes either
if  certificates  are to be  forwarded  herewith  or if  tenders  are to be made
pursuant to the procedures for delivery by book-entry transfer set forth in "The
Exchange Offer - Book-Entry  Transfer"  section of the Prospectus.  Certificates
for all physically  tendered Existing Senior Notes, or Book-Entry  Confirmation,
as the case may be, as well as a properly completed and duly executed Letter (or
manually signed facsimile hereof), with any required signature  guarantees,  and
any other  documents  required by this Letter,  must be received by the Exchange
Agent at the address set forth herein on or prior to the Expiration Date, or the
tendering Holder must comply with the guaranteed  delivery  procedures set forth
below.  Existing  Senior  Notes  tendered  hereby  must be in  denominations  of
principal amount of $1,000 and any integral multiples thereof.

     Holders who tender their  Existing  Senior Notes by  delivering  an Agent's
Message do not need to submit this Letter.

     Holders whose  certificates  for Existing  Senior Notes are not immediately
available  or who  cannot  deliver  their  certificates  and all other  required
documents  to the  Exchange  Agent on or prior to the  Expiration  Date,  or who
cannot  complete the procedure for  book-entry  transfer on a timely basis,  may
tender  their  Existing  Senior  Notes  pursuant  to  the  guaranteed   delivery
procedures  set forth in "The Exchange Offer - Guaranteed  Delivery  Procedures"
section of the Prospectus.  Pursuant to such procedures, (i) such tender must be
made  through an Eligible  Institution,  (ii) prior to 5:00 P.M.,  New York City
time, on the Expiration Date, the Exchange Agent must receive from such Eligible
Institution  a properly  completed  and duly  executed  letter  (or a  facsimile
thereof) and Notice of Guaranteed  Delivery,  substantially in the form provided
by the Company (by facsimile transmission, mail or hand delivery), setting forth
the name and  address of the Holder of Existing  Senior  Notes and the amount of
Existing Senior Notes tendered stating that the tender is being made thereby and
guaranteeing  that within three New York Stock  Exchange  ("NYSE")  trading days
after the Expiration Date, the certificates for all physically tendered Existing
Senior Notes, in proper form for transfer, or a Book-Entry Confirmation,  as the
case may be, and any other  documents  required by this Letter will be deposited
by the Eligible  Institution with the Exchange Agent, and (iii) the certificates
for all physically  tendered Existing Senior Notes, in proper form for transfer,
or a  Book-Entry  Confirmation,  as the case  may be,  and all  other  documents
required by this Letter,  are  received by the Exchange  Agent within three NYSE
trading days after the Expiration Date.

     The method of delivery of this Letter,  the  Existing  Senior Notes and all
other required  documents is at the election and risk of the tendering  Holders,
and the delivery will be deemed made only when actually received or confirmed by
the Exchange Agent. If delivery is by mail,  registered mail,  properly insured,
with return receipt requested, or overnight delivery service is recommended.  In
all cases, sufficient time should be allowed to ensure timely delivery.

     See "The Exchange Offer" section of the Prospectus.

2.   Partial  Tenders  (not  applicable  to  Holders  who  tender by  book-entry
     transfer).

     If less than all of the  Existing  Senior  Notes  evidenced  by a submitted
certificate  are to be  tendered,  the  tendering  Holder(s)  should fill in the
aggregate  principal  amount of the Existing  Senior Notes to be tendered in the
box above  entitled  "Description  of Existing  Senior  Notes--Principal


                                      -9-
<PAGE>

Amount   Tendered."  A  reissued   certificate   representing   the  balance  of
non-tendered Existing Senior Notes will be sent to such tendering Holder, unless
otherwise  provided in the  appropriate  box on this Letter  promptly  after the
Expiration  Date.  All of the Existing  Senior  Notes  delivered to the Exchange
Agent will be deemed to have been tendered unless otherwise indicated.

3.   Signatures  on this  Letter;  Bond Powers and  Endorsements;  Guarantee  of
     Signatures.

     If this Letter is signed by the  registered  Holder of the Existing  Senior
Notes tendered  hereby,  the signature must correspond  exactly with the name as
written on the face of the certificates  without any change whatsoever.  If this
Letter is signed by a participant in DTC, the signature must correspond with the
name as it appears on the security position listing as the owner of the Existing
Senior Notes.

     If any  tendered  Existing  Senior Notes are owned of record by two or more
joint owners, all of such owners must sign this Letter.

     If any tendered Existing Senior Notes are registered in different names, it
will be necessary to complete,  sign and submit as many separate  copies of this
Letter as there are different registrations of Existing Senior Notes.

     When this  Letter is signed by the  registered  Holder(s)  of the  Existing
Senior  Notes  specified  herein and tendered  hereby,  no  endorsements  of the
tendered  Existing  Senior  Notes or  separate  bond  powers are  required.  If,
however,  the new Senior  Notes are to be  issued,  or any  untendered  Existing
Senior Notes are to be reissued,  to a person other than the registered  Holder,
then  endorsements of any Existing Senior Notes  transmitted  hereby or separate
bond powers are required.  Signatures on the Existing Senior Notes or bond power
must be guaranteed by an Eligible Institution.

     If this Letter is signed by a person other than the registered Holder(s) of
any Existing Senior Notes specified  herein,  such Existing Senior Notes must be
endorsed  or  accompanied  by  appropriate  bond  powers,  in either case signed
exactly as the name or names of the  registered  Holder or Holders  appear(s) on
the Existing Senior Notes (or security  position  listing) and signatures on the
Existing  Senior  Notes  or  bond  power  must  be  guaranteed  by  an  Eligible
Institution.

     If this Letter or any  certificates  or bond powers are signed by trustees,
executors,   administrators,    guardians,   attorneys-in-fact,    officers   of
corporations or others acting in a fiduciary or  representative  capacity,  such
persons should so indicate when signing, and, unless waived by the Company, must
submit proper evidence satisfactory to the Company of their authority to so act.

     Endorsements on Existing Senior Notes or signatures on bond powers required
by this Instruction 3 must be guaranteed by a firm or other entity identified in
Rule 17Ad-15  under the Exchange  Act as an  "eligible  guarantor  institution,"
including (as such terms are defined  therein) (i) a bank, (ii) broker,  dealer,
municipal securities broker or dealer or government securities broker or dealer,
(iii) a credit union, (iv) a national securities exchange, registered securities
association  or  clearing  agency,  or  (v)  a  savings  association  that  is a
participant in a Securities Transfer Association (an "Eligible Institution").

     Signatures on this Letter need not be guaranteed by an Eligible Institution
if the  Existing  Senior  Notes  are  tendered:  (i) by a  registered  Holder of
Existing Senior Notes (which term, for purposes of the Exchange Offer,  includes
any  participant  in the  Book-Entry  Transfer  Facility whose name appears on a
security  position  listing as the Owner of such Existing  Senior Notes) who has
not  completed  the box entitled  "Special  Issuance  Instructions"  or "Special
Delivery  Instructions"  on this Letter,  or (ii) for the account of an Eligible
Institution.


                                      -10-
<PAGE>

4.   Special Issuance and Delivery Instructions.

     Tendering   Holders  of  Existing  Senior  Notes  should  indicate  in  the
applicable box on page 6 of this Letter the name and address to which New Senior
Notes issued  pursuant to the  Exchange  Offer  and/or  substitute  certificates
evidencing  Existing  Senior Notes not  exchanged  are to be issued or sent,  if
different  from the name or address of the person  signing this  Letter.  In the
case of issuance in a different  name,  the  employer  identification  or social
security  number of the person named must also be indicated.  Holders  tendering
Existing  Senior Notes by book-entry  transfer may request that Existing  Senior
Notes not  exchanged be credited to such account  maintained  at the  Book-Entry
Transfer  Facility  as  such  note  Holder  may  designate  hereon.  If no  such
instructions  are  given,  such  Existing  Senior  Notes not  exchanged  will be
returned to the name and address of the person signing this Letter.

5.   Taxpayer Identification Number.

     Federal  income tax law generally  requires  that a tendering  Holder whose
Existing  Senior Notes are  accepted  for exchange  must provide the Company (as
payor) with such Holder's correct Taxpayer  Identification Number ("TIN") on the
substitute  Form W-9 on page 8 of this Letter,  which in the case of a tendering
Holder  who is an  individual,  is his or her  social  security  number.  If the
Company  is not  provided  with the  current  TIN or an  adequate  basis  for an
exemption from backup withholding, such tendering Holder may be subject to a $50
penalty imposed by the Internal Revenue Service. In addition, the Exchange Agent
maybe  required to withhold 31% of the amount of any  reportable  payments  made
after the exchange to such tendering  Holder of New Senior Notes. If withholding
results in an overpayment of taxes, a refund may be obtained.

     Exempt  Holders of Existing  Senior Notes  (including,  among  others,  all
corporations  and certain foreign  individuals)  are not subject to these backup
withholding  and  reporting  requirements.  Exempt  holders,  other than foreign
individuals,  should  furnish  their  TIN,  write  "Exempt"  on the  face of the
Substitute  Form W-9 and sign,  date and return the form to the Exchange  Agent.
See the enclosed Guidelines for Certification of Taxpayer  Identification Number
on Substitute Form W-9 (the "W-9  Guidelines") for additional  instructions.  If
the tendering holder of Existing Senior Notes is a nonresident  alien or foreign
entity not subject to backup  withholding,  such  holder must give the  Exchange
Agent a completed Form W-8 Certificate of Foreign Status.

     To prevent backup  withholding,  each tendering  Holder of Existing  Senior
Notes must provide its correct TIN by completing the Substitute Form W-9 on page
8 of this Letter, certifying,  under penalties of perjury, that the TIN provided
is correct  (or that such  Holder is  awaiting a TIN) and that (i) the Holder is
exempt from backup withholding,  or (ii) the Holder has not been notified by the
Internal Revenue Service that such Holder is subject to backup  withholding as a
result of a failure to report all  interest or  dividends  or (iii) the Internal
Revenue Service has notified the Holder that such Holder is no longer subject to
backup  withholding.  If the Existing  Senior Notes are in more than one name or
are not in the name of the actual  owner,  such  Holder  should  consult the W-9
Guidelines  for  information  on which TIN to report.  Failure  to  provide  the
information  on the form may subject the Holder to 31% federal income tax backup
withholding  on all reportable  payments tot he Holder.  If such Holder does not
have a TIN, such Holder should consult the W-9 Guidelines  for  instructions  on
applying for a TIN,  apply for a TIN and write  "applied for" in lieu of its TIN
in Part 1 of the Substitute  Form W-9.  Writing  "applied for" on the form means
that such  Holder has already  applied for a TIN or that such Holder  intends to
apply for one in the near future.  If "applied  for" is written in Part 1 of the
Substitute  Form W-9 and the Exchange Agent is not provided with a TIN within 60
days,  the Exchange  Agent will withhold 31% of all  reportable  payments to the
Holder thereafter until a TIN is provided to the Exchange Agent.


                                      -11-
<PAGE>

6.   Transfer Taxes.

     The Company will pay all transfer taxes, if any, applicable to the transfer
of Existing Senior Notes to it or its order pursuant to the Exchange Offer.  If,
however,  New Senior Notes and/or substitute Existing Senior Notes not exchanged
are to be delivered  to, or are to be  registered  or issued in the name of, any
person other than the  registered  Holder of the Existing  Senior Notes tendered
hereby,  or if tendered  Existing Senior Notes are registered in the name of any
person  other than the  person  signing  this  Letter,  or if a transfer  tax is
imposed for any reason other than the  transfer of Existing  Senior Notes to the
Company or its order  pursuant  to the  Exchange  Offer,  the amount of any such
transfer  taxes (whether  imposed on the registered  Holder or any other person)
will be payable by the tendering Holder. If satisfactory  evidence of payment of
such taxes or exemption therefrom is not submitted herewith,  the amount of such
transfer taxes will be billed directly to such tendering Holder.

     Except as  provided in this  Instruction  6, it will not be  necessary  for
transfer tax stamps to be affixed to the Existing Senior Notes specified in this
Letter.

7.   No Conditional Tenders.

     No  alternative,  conditional,  irregular  or  contingent  tenders  will be
accepted.  All tendering  Holders of Existing Senior Notes, by execution of this
Letter,  shall  waive any right to  receive  notice of the  acceptance  of their
Existing Senior Notes for exchange.

     Neither the Company,  the Exchange  Agent nor any other person is obligated
to give  notice of any  defect or  irregularity  with  respect  to any tender of
Existing  Senior Notes nor shall any of them incur any  liability for failure to
give any such notice.

8.   Mutilated, Lost, Stolen or Destroyed Existing Senior Notes.

     Any Holder whose Existing Senior Notes have been mutilated, lost, stolen or
destroyed  should contact the Exchange Agent at the address  indicated above for
further  instructions.  This Letter and related  documents  cannot be  processed
until  the  procedures  for  replacing  mutilated,  lost,  stolen  or  destroyed
certificates have been followed.

9.   Withdrawal Rights.

     Tenders of Existing Senior Notes may be withdrawn at any time prior to 5:00
P.M., New York City time, on the  Expiration  Date. For a withdrawal of a tender
of Existing Senior Notes to be effective, a written notice of withdrawal must be
received by the Exchange  Agent at the address on page 1 of this Letter prior to
5:00 P.M.,  New York City  time,  on the  Expiration  Date.  Any such  notice of
withdrawal  must (i) specify the name of the person having tendered the Existing
Senior  Notes to be  withdrawn  (the  "Depositor"),  (ii)  identify the Existing
Senior Notes to be withdrawn  (including  certificate  number or numbers and the
principal amount of such Existing Senior Notes),  (iii) contain a statement that
such Holder is  withdrawing  his  election to have such  Existing  Senior  Notes
exchanged,  (iv) be signed  by the  Holder  in the same  manner as the  original
signature  on the  Letter by which such  Existing  Senior  Notes  were  tendered
(including any required signature  guarantees) or be accompanied by documents of
transfer to have the Trustee with respect to the Existing  Senior Notes register
the transfer of such Existing Senior Notes in the name of the person withdrawing
the tender and (v)  specify  the name in which such  Existing  Senior  Notes are
registered,  if different from that of the Depositor.  If Existing  Senior Notes
have been tendered  pursuant to the procedure for book-entry  transfer set forth
in "The Exchange Offer - Book-Entry  Transfer"  section of the  Prospectus,  any
notice of  withdrawal  must  specify  the name and number of the  account at the
Book-Entry  Transfer Facility to be credited with the withdrawn  Existing Senior
Notes and otherwise comply with the procedures of such facility.


                                      -12-
<PAGE>

     All questions as to the validity,  form and eligibility  (including time of
receipt) of such notices will be determined by the Company,  whose determination
shall  be final  and  binding  on all  parties.  Any  Existing  Senior  Notes so
withdrawn  will be deemed not to have been  validly  tendered  for  exchange for
purposes  of the  Exchange  Offer and no New Senior  Notes  will be issued  with
respect  thereto  unless the  Existing  Senior  Notes so  withdrawn  are validly
retendered.  Any Existing  Senior Notes that have been tendered for exchange but
which are not  exchanged  for any reason will be returned to the Holder  thereof
without cost to such Holder (or, in the case of Existing  Senior Notes  tendered
by  book-entry  transfer  into the Exchange  Agent's  account at the  Book-Entry
Transfer  Facility pursuant to the book-entry  transfer  procedures set forth in
"The  Exchange  Offer - Book-Entry  Transfer"  section of the  Prospectus,  such
Existing  Senior  Notes  will be  credited  to an  account  maintained  with the
Book-Entry  Transfer  Facility  for  the  Existing  Senior  Notes)  as  soon  as
practicable after withdrawal, rejection of tender or termination of the Exchange
Offer.  Properly  withdrawn Existing Senior Notes may be retendered by following
the  procedures  described  above at any time on or prior to 5:00 P.M., New York
City time, on the Expiration Date.

10.  Irregularities.

     The Company will determine, in its sole discretion, all questions as to the
form,  validity,  eligibility  (including  time of receipt) and  acceptance  for
exchange of any tender of Existing Senior Notes,  which  determination  shall be
final and binding. The Company reserves the absolute right to reject any and all
tenders of any particular  Existing Senior Notes not properly tendered or to not
accept any  particular  Existing  Senior Notes which  acceptance  might,  in the
judgment of the Company or its counsel,  be unlawful.  The Company also reserves
the  absolute  right,  in  its  sole   discretion,   to  waive  any  defects  or
irregularities or conditions of the Exchange Offer as to any particular Existing
Senior Notes either before or after the Expiration  Date (including the right to
waive the  ineligibility of any holder who seeks to tender Existing Senior Notes
in the Exchange Offer).  The  interpretation  of the terms and conditions of the
Exchange Offer as to any particular Existing Senior Notes either before or after
the Expiration Date  (including the Letter of Transmittal  and the  instructions
thereto)  by the  Company  shall be final and  binding  on all  parties.  Unless
waived,  any defects or irregularities in connection with the tender of Existing
Senior Notes for exchange must be cured within such reasonable period of time as
the Company shall  determine.  Neither the Company,  the Exchange  Agent nor any
other  person  shall be under  any duty to give  notification  of any  defect or
irregularity  with respect to any tender of Existing  Senior Notes for exchange,
nor shall any of them incur any liability for failure to give such notification.

11.  Requests for Assistance or Additional Copies.

     Questions relating to the procedure for tendering,  as well as requests for
additional  copies of the  Prospectus,  this  Letter,  the Notice of  Guaranteed
Delivery and other related  documents may be directed to the Exchange  Agent, at
the address and telephone number indicated on page 1 of this Letter.


                                      -13-





                          NOTICE OF GUARANTEED DELIVERY
                                  FOR TENDER OF
                          7 3/8% SENIOR NOTES DUE 2009
                                       OF
                         ALLIANT ENERGY RESOURCES, INC.

     This Notice of Guaranteed Delivery, or one substantially equivalent to this
form,  must be used to accept the Exchange  Offer of Alliant  Energy  Resources,
Inc. (the "Company") made pursuant to the Prospectus  dated  ____________,  1999
(the  "Prospectus")  if certificates for the outstanding 7 3/8% Senior Notes due
2009 of the Company (the "Existing Senior Notes") are not immediately  available
or if the  procedure  for  book-entry  transfer  cannot be completed on a timely
basis or time will not permit all  required  documents  to reach  Firstar  Bank,
N.A., as exchange  agent (the  "Exchange  Agent"),  prior to 5:00 P.M., New York
City  time,  on the  Expiration  Date of the  Exchange  Offer.  This  Notice  of
Guaranteed  Delivery may be delivered or transmitted by facsimile  transmission,
overnight  courier,  mail or hand  delivery to the  Exchange  Agent as set forth
below.  In addition,  in order to utilize the guaranteed  delivery  procedure to
tender Existing Senior Notes pursuant to the Exchange Offer, a completed, signed
and dated Letter of Transmittal (or facsimile  thereof) must also be received by
the Exchange  Agent prior to 5:00 P.M.,  New York City time,  on the  Expiration
Date. Capitalized terms not defined herein are defined in the Prospectus.

     The Exchange Agent for the Exchange Offer is Firstar Bank, N.A.


        By Facsimile Transmission           By Registered or Certified Mail,
    (For Eligible Institutions Only):          Hand or overnight Courier:
             (414) 276-4226                        Firstar Bank, N.A.
                                              1555 North RiverCenter Drive
          Confirm by Telephone:                         Suite 301
             (414) 905-5008                    Milwaukee, Wisconsin 53212
                                              Attention: Ms. Pamela Warner


     DELIVERY OF THIS  NOTICE TO AN ADDRESS  OTHER THAN AS SET FORTH  ABOVE,  OR
TRANSMISSION OF INSTRUCTIONS  VIA FACSIMILE OTHER THAN AS SET FORTH ABOVE,  WILL
NOT CONSTITUTE A VALID DELIVERY.

     THIS NOTICE IS NOT TO BE USED TO GUARANTEE SIGNATURES.  IF A SIGNATURE ON A
LETTER OF  TRANSMITTAL  IS REQUIRED TO BE GUARANTEED BY AN ELIGIBLE  INSTITUTION
UNDER THE  INSTRUCTIONS  THERETO,  THE SIGNATURE  GUARANTEED  MUST APPEAR IN THE
APPLICABLE SPACE PROVIDED IN THE SIGNATURE BOX ON THE LETTER OF TRANSMITTAL.

<PAGE>


Ladies and Gentlemen:

     Upon the terms and subject to the  conditions  set forth in the  Prospectus
and the accompanying  Letter of Transmittal,  the undersigned  hereby tenders to
the Company the  principal  amount of  Existing  Senior  Notes of the series set
forth below pursuant to the  guaranteed  delivery  procedures  described in "The
Exchange Offer Guaranteed Delivery Procedures" section of the Prospectus.

___________________________________  _________________________________________
                                     If Existing Senior Notes will be delivered
Total Principal Amount of Existing   by book-entry transfer  to  The  Depository
   Senior Notes Tendered:*           Trust Company, provide account number.

           $__________                   Account Number ___________________

  Certificate Nos. (if available)

  _______________________________

___________________________________  _________________________________________

*    Must be in  denominations  of  principal  amount of $1,000 and any integral
     multiple thereof.

     All authority  herein conferred or agreed to be conferred shall survive the
death or incapacity of the undersigned  and every  obligation of the undersigned
hereunder shall be binding upon the heirs, personal representatives,  successors
and assigns of the undersigned.

           PLEASE SIGN HERE
     X______________________________         _______________________________

     X______________________________         _______________________________
        Signature(s) of Owner(s)                        Date
        or Authorized Signatory

Area Code and Telephone Number(s):___________________________________________

     Must be signed by the  registered  holder(s)  of Existing  Senior  Notes as
their name(s)  appear(s) on the Existing Senior Notes or on a security  position
listing,  or  by  person(s)   authorized  to  become  registered   holder(s)  by
endorsement and documents  transmitted with this Notice of Guaranteed  Delivery.
If   signature   is   by   a   trustee,   executor   administrator,    guardian,
attorney-in-fact,   officer  or  other   person   acting  in  a   fiduciary   or
representative capacity, please provide the following information.

                      Please print name(s) and address(es)

Name(s):________________________________________________________________________

________________________________________________________________________________

Capacity:_______________________________________________________________________

Address(es):____________________________________________________________________

________________________________________________________________________________

Telephone Number: ______________________________________________________________


                                      -2-
<PAGE>

                                    GUARANTEE
                    (Not to be used for signature guarantee)

     The  undersigned,  a firm or other entity  identified in Rule 17Ad-15 under
the Exchange Act as an "eligible guarantor institution" including (as such terms
are defined  therein) (i) a bank,  (ii)  broker,  dealer,  municipal  securities
broker or dealer  or  government  securities  broker or  dealer,  (iii) a credit
union, (iv) a national securities exchange, registered securities association or
clearing  agency,  or (v) a  savings  association  that  is a  participant  in a
Securities Transfer Association (an "Eligible  Institution"),  hereby guarantees
that the certificates representing the principal amount of Existing Senior Notes
tendered  hereby in proper  form for  transfer,  or timely  confirmation  of the
book-entry  transfer of such  Existing  Senior Notes into the  Exchange  Agent's
account at The Depository  Trust Company pursuant to the procedures set forth in
"The Exchange Offer Guaranteed  Delivery  Procedures" section of the Prospectus,
together with any required signature  guarantee and any other documents required
by the Letter of  Transmittal,  will be  received by the  Exchange  Agent at the
address set forth  above,  no later than three New York Stock  Exchange  trading
days after the Expiration Date.

________________________________________________________________________________


_____________________________________    _______________________________________
            Name of Firm                         Authorized Signature


_____________________________________    _______________________________________
             Address                                  Title


_____________________________________    Name:__________________________________
             Zip Code                            (Please Type or Print)


_____________________________________    Dated:_________________________________
         Telephone Number
________________________________________________________________________________


NOTE:  DO NOT SEND  CERTIFICATES  FOR  EXISTING  SENIOR  NOTES  WITH THIS  FORM.
       CERTIFICATES FOR EXISTING SENIOR NOTES SHOULD BE SENT ONLY WITH A COPY OF
       YOUR PREVIOUSLY EXECUTED LETTER OF TRANSMITTAL.



                                      -3-



             GUIDELINES FOR CERTIFICATION OF TAXPAYER IDENTIFICATION
                          NUMBER ON SUBSTITUTE FORM W-9

     Guidelines For  Determining  The Proper Name And  Identification  Number to
Give The  Payer.-Social  Security  numbers  have nine  digits  separated  by two
hyphens:  i.e.,  000-00-0000.  Employer  identification numbers have nine digits
separated  by only one  hyphen:  i.e.,  00-0000000.  The table  below  will help
determine the name and number to give the payer.

<TABLE>
<CAPTION>
- ---------------------------------------------------------  ------------------------------------------------------------
                                                                                                 Give the name and
                               Give the name and                                                 EMPLOYER
                               SOCIAL SECURITY                                                   IDENTIFICATION
For this type of account       number of-                   For this type of account             number of-
- ---------------------------------------------------------  ------------------------------------------------------------
<S>                            <C>                          <C>                                  <C>
1.  Individual                 The individual               6.   Sole proprietorship             The owner(3)

2.  Two or more                The actual owner of          7.   A valid trust, estate or        Legal entity(4)
    individuals (joint         the account or, if                pension trust
    account                    combined funds, the
                               first individual on          8.   Corporate                       The corporation
                               the account

                                                            9.   Association, club,              The organization
3.  Custodian account of a     The minor(2)                      religious, charitable,
    minor (Uniform Gift to                                       educational or other tax-
    Minors Act)                                                  exempt organization

4.  a.   The usual             The grantor-trustee(1)       10.  Partnership                     The partnership
    revocable savings trust
    account (grantor is                                     11.  A broker or registered          The broker or
    also trustee)                                                nominee                         nominee

    b.   So-called trust       The actual owner(1)          12.  Account with the                The public entity
    account that is not a                                        Department of Agriculture
    legal or valid trust                                         in the name of a public
    under state law                                              entity (such as a state or
                                                                 local government, school
5.   Sole proprietorship       The owner(3)                      district or prison) that
                                                                 receives agricultural
                                                                 program payments
- ---------------------------------------------------------  ------------------------------------------------------------

(1)       List first and circle the name of the person whose number you furnish.  If only one person on a joint account has a
          social security number, that person's number must be furnished.

(2)       Circle the minor's name and furnish the minor's social security number.

(3)       You must show your  individual  name, but you may also enter your business or "doing business as" name. You may use
          either your social security number or employer identification number.

(4)       List first and circle the name of the legal trust,  estate or pension trust. (Do not furnish the identifying number
          of the personal representative or trustee unless the legal entity itself is not designated in the account title.)

Note:     If no name is circled when more than one name is listed, the number will be considered to be that of the first name
          listed.

</TABLE>

<PAGE>

             GUIDELINES FOR CERTIFICATION OF TAXPAYER IDENTIFICATION
                          NUMBER ON SUBSTITUTE FORM W-9
                                     Page 2


OBTAINING  A NUMBER                           For  interest and  dividends,  all
     If  you  don't  have  a  taxpayer   listed  payees  are  exempt  except the
identification  number,  apply for one   payee   in   item   (9).   For   broker
immediately.  To  apply  for a  social   transactions,  payees  listed  in items
security  number,  get Form  SS-5 from   (1)   through   (13)   and   a   person
your     local     Social     Security   registered    under   the    Investment
Administration  office.  Get Form SS-4   Advisers Act of 1940 who  regularly act
to    apply     for    an     employer   as a broker are exempt.
identification  number.  You  can  get
Form  SS-4  from  the  IRS by  calling        Exempt  payees   described   above
1-800-TAX-FORM (1-800-829-3676).         should file Form W-9 to avoid  possible
                                         erroneous backup  withholding.  FURNISH
Payees Exempt From Backup Withholding    YOUR  TAXPAYER  IDENTIFICATION  NUMBER,
     The following is a list of payees   WRITE  "EXEMPT" IN PART II OF THE FORM,
specifically   exempted   from  backup   SIGN AND DATE THE FORM AND RETURN IT TO
withholding:                             THE  PAYER.  If you  are a  nonresident
(1)  An  organization  exempt from tax   alien or a foreign  entity not  subject
     under section  501(a),  or an IRA   to backup withholding, give the payer a
     or  a  custodian   account  under   completed  Form  W-8,   Certificate  of
     section  403(b)(7) if the account   Foreign Status.
     satisfies  the   requirements  of
     section 401(f)                           Privacy Act  Notice.-Section  6109
                                         requires  most  recipients of dividend,
(2)  The  United   States  or  of  any   interest  or  other  payments  to  give
     agencies or instrumentalities.      taxpayer   identification   numbers  of
                                         payers who must report the  payments to
(3)  A   state,    the   District   of   the IRS.  The IRS uses the  numbers for
     Columbia,  a  possession  of  the   identification  purposes  and  to  help
     United  States,  or any of  their   verify the accuracy of your return. The
     subdivisions                   or   IRS may also provide  this  information
     instrumentalities.                  to  the   Department   of  Justice  for
                                         criminal  and civil  litigation  and to
(4)  A foreign  government or  any  of   cities,  states  and  the  District  of
     its   political     subdivisions,   Columbia  to carry  out their tax laws.
     agencies or instrumentalities.      Payers   must  be  given  the   numbers
                                         whether or not  recipients are required
(5)  An international  organization or   to  file  tax   returns.   Payers  must
     any    of   its    agencies    or   generally   withhold   31   percent  of
     instrumentalities.                  taxable interest,  dividend and certain
                                         other  payments to a payee who does not
(6)  A corporation.                      furnish   a   taxpayer   identification
                                         number  to a payer.  Certain  penalties
(7) A foreign central bank of issue.     may also apply.

(8)  A   dealer   in   securities   or   Penalties
     commodities  required to register
     in  the   United   States   or  a        (1)  Failure To  Furnish  Taxpayer
     possession of the United States.    Identification  Number.-If  you fail to
                                         furnish    your    correct     taxpayer
(9)  A  futures  commission   merchant   identification  number to a payer,  you
     registered   with  the  Commodity   are  subject  to a  penalty  of $50 for
     Futures Trading  Commission         each such  failure  unless your failure
                                         is due to  reasonable  cause and not to
(10) A real estate investment trust.     willful neglect.

(11) An entity registered at all times        (2)   Civil   Penalty   For  False
     during  the tax  year  under  the   Information     With     Respect     To
     Investment Company Act of 1940.     Withholding.-If   you   make  a   false
                                         statement  with  no  reasonable   basis
(12) A common trust fund operated by a   which   results  in  no  imposition  of
     bank under section 584(a).          backup withholding,  you are subject to
                                         a penalty of $500.
(13) A financial institution.
                                              (3)    Criminal     Penalty    For
(14) A   middleman    known   in   the   Falsifying  Information.   -  Willfully
     investment community as a nominee   falsifying       certifications      or
     or  listed  in  the  most  recent   affirmations   may   subject   you   to
     publication   of   the   American   criminal   penalties   including  fines
     Society of Corporate Secretaries,   and/or imprisonment.
     Inc., Nominee List.
                                              FOR ADDITIONAL INFORMATION CONTACT
(15) A trust  exempt  from  tax  under   YOUR  TAX  CONSULTANT  OR THE  INTERNAL
     section  664  or   described   in   REVENUE SERVICE.
     section 4947.




                         ALLIANT ENERGY RESOURCES, INC.

                                Offer to Exchange
                     Registered 7 3/8% Senior Notes due 2009
      For Any and All Outstanding Unregistered 7 3/8% Senior Notes due 2009


- --------------------------------------------------------------------------------
           THE EXCHANGE OFFER WILL EXPIRE AT 5:00 P.M., NEW YORK CITY
            TIME, ON ___________, 2000, UNLESS THE OFFER IS EXTENDED.
- --------------------------------------------------------------------------------


                                                              ____________, 1999

To Our Clients:

     Enclosed for your consideration is a Prospectus,  dated ____________,  1999
(the  "Prospectus"),  and the  related  Letter of  Transmittal  (the  "Letter of
Transmittal"),  relating to the offer (the  "Exchange  Offer") of Alliant Energy
Resources,  Inc.  (the  "Company")  to exchange its 7 3/8% Senior Notes due 2009
(the "New Senior Notes") which have been registered  under the Securities Act of
1933, as amended,  for all of its  outstanding  unregistered 7 3/8% Senior Notes
due 2009 (the  "Existing  Senior  Notes"),  upon the terms  and  subject  to the
conditions  described  in the  Prospectus  and the  Letter of  Transmittal.  The
Exchange  Offer is being made in order to  satisfy  certain  obligations  of the
Company  contained in the Registration  Rights Agreement dated November 9, 1999,
by and between the Company and the initial purchasers named therein,  related to
the 7 3/8% Senior Notes due 2009.

     This  material is being  forwarded  to you as the  beneficial  owner of the
Existing  Senior  Notes held by us for your account but not  registered  in your
name.  A tender  of such  Existing  Senior  Notes  may only be made by us as the
holder of record and pursuant to your instructions.

     Accordingly, we request instructions as to whether you wish us to tender on
your behalf the Existing  Senior Notes held by us for your account,  pursuant to
the terms and  conditions  set forth in the  enclosed  Prospectus  and Letter of
Transmittal.  We urge you to read the Prospectus carefully before instructing us
as to whether or not to tender your Existing Senior Notes.

     Your  instructions  should be  forwarded  to us as  promptly as possible in
order to  permit  us to  tender  the  Existing  Senior  Notes on your  behalf in
accordance  with the provisions of the Exchange  Offer.  The Exchange Offer will
expire at 5:00 p.m., New York City time, on ____________,  2000, unless extended
by the Company.  Any Existing  Senior  Notes  tendered  pursuant to the Exchange
Offer may be withdrawn at any time before the Expiration Date.

     If you wish to have us tender your Existing  Senior Notes,  please instruct
us by completing,  executing and returning to us the  instruction  form enclosed
with this letter.  The Letter of Transmittal is furnished to you for information
only and may not be used directly by you to tender Existing Senior Notes.

     If we do not receive written instructions in accordance with the procedures
presented in the Prospectus and the Letter of Transmittal we will not tender any
of the outstanding Existing Senior Notes on your account.






                                  INSTRUCTIONS

             Instruction to Registered Holder and/or DTC Participant
                              from Beneficial Owner
                                       of
                          7 3/8% Senior Notes due 2009

- --------------------------------------------------------------------------------
           THE EXCHANGE OFFER WILL EXPIRE AT 5:00 P.M., NEW YORK CITY
           TIME, ON ___________, 1999, UNLESS THE OFFER IS EXTENDED.
- --------------------------------------------------------------------------------

To Registered Holder and/or Depository Trust Company Participant:

     The  undersigned  hereby  acknowledges  receipt  of  the  Prospectus  dated
____________,  1999 (the  "Prospectus")  of Alliant  Energy  Resources,  Inc., a
Wisconsin   corporation  (the  "Company"),   and  the  accompanying   Letter  of
Transmittal  (the  "Letter  of  Transmittal"),   that  together  constitute  the
Company's  offer (the "Exchange  Offer") to exchange its 7 3/8% Senior Notes due
2009 (the "New Senior  Notes") which have been  registered  under the Securities
Act of 1933,  as amended  (the  "Securities  Act"),  for all of its  outstanding
registered  7  3/8%  Senior  Notes  due  2009  (the  "Existing  Senior  Notes").
Capitalized terms used but not defined herein have the meanings ascribed to them
in the Prospectus.

     This will  instruct you, the  registered  holder  and/or  Depository  Trust
Company  Participant,  as to the  action  to be  taken  by you  relating  to the
Exchange  Offer with  respect to the  Existing  Senior Notes held by you for the
account of the undersigned.

     The aggregate principal amount of Existing Senior Notes held by you for the
account of the undersigned is (fill in amount):

          $__________ of the outstanding 7 3/8% Senior Notes due 2009.

     With respect to the Exchange Offer,  the undersigned  hereby  instructs you
(check appropriate box):

|_|  TO TENDER the following  Existing  Senior Notes held by you for the account
     of the undersigned  (insert principal amount of Existing Senior Notes to be
     tendered, if less than all):

          $__________ of the outstanding 7 3/8% Senior Notes due 2009.

|_|  NOT TO TENDER any Existing  Senior Notes held by you for the account of the
     undersigned.

     If the  undersigned  instructs you to tender  Existing Senior Notes held by
you for the account of the undersigned, it is understood that you are authorized
to make, on behalf of the  undersigned  (and the  undersigned,  by its signature
below, hereby makes to you), the representations and warranties contained in the
Letter of Transmittal  that are to be made with respect to the  undersigned as a
beneficial owner, including but not limited to the representations, that (i) the
undersigned is not an  "affiliate" of the Company,  (ii) any New Senior Notes to
be received by the  undersigned are being acquired in the ordinary course of its
business, and (iii) the undersigned has no arrangement or understanding with any
person to participate  in a  distribution  (within the meaning of the Securities
Act)  of  New  Senior  Notes  to be  received  in  the  Exchange  Offer.  If the
undersigned  is a  broker-dealer  that will receive New Senior

<PAGE>

Notes for its own account in exchange for Existing  Senior Notes,  it represents
that the  Existing  Senior  Notes to be  exchanged  for New  Senior  Notes  were
acquired  by it  as a  result  of  market-making  activities  or  other  trading
activities and acknowledges that it will deliver a prospectus in connection with
any  resale  of such New  Senior  Notes;  however,  by so  acknowledging  and by
delivering a prospectus,  the undersigned will not be deemed to admit that it is
an "underwriter" within the meaning of the Securities Act.

________________________________________________________________________________

                                    SIGN HERE

Name of Beneficial Owner(s)_____________________________________________________

Signature(s)____________________________________________________________________

Name(s) (please print)__________________________________________________________

Address ________________________________________________________________________

________________________________________________________________________________

Telephone Number _______________________________________________________________

Taxpayer Identification or Social Security No.__________________________________

Date ___________________________________________________________________________
________________________________________________________________________________



                                      -2-





                         ALLIANT ENERGY RESOURCES, INC.

                                Offer to Exchange
                     Registered 7 3/8% Senior Notes due 2009
      For Any and All Outstanding Unregistered 7 3/8% Senior Notes due 2009

                                                              ____________, 1999

- --------------------------------------------------------------------------------
           THE EXCHANGE OFFER WILL EXPIRE AT 5:00 P.M., NEW YORK CITY
            TIME, ON ___________, 2000, UNLESS THE OFFER IS EXTENDED.
- --------------------------------------------------------------------------------

To  Brokers, Dealers, Commercial Banks,
    Trust Companies and Other Nominees:

     Alliant  Energy  Resources,  Inc.  (the  "Company")  is offering,  upon and
subject  to  the  terms  and  conditions  set  forth  in the  Prospectus,  dated
____________,  1999 (the  "Prospectus"),  and the enclosed Letter of Transmittal
(the "Letter of  Transmittal"),  to exchange (the  "Exchange  Offer") its 7 3/8%
Senior Notes due 2009 (the "New Senior Notes") which have been registered  under
the Securities Act of 1933, as amended, for all of its outstanding  unregistered
7 3/8% Senior Notes due 2009 (the "Existing  Senior Notes").  The Exchange Offer
is being made in order to satisfy certain  obligations of the Company  contained
in the Registration  Rights Agreement dated November 9, 1999, by and between the
Company and the initial purchasers named therein,  relating to the 7 3/8% Senior
Notes due 2009.

     We are requesting  that you contact your clients for whom you hold Existing
Senior  Notes  regarding  the  Exchange  Offer.  For  your  information  and for
forwarding to your clients for whom you hold Existing Senior Notes registered in
your name or in the name of your  nominee,  or who hold  Existing  Senior  Notes
registered in their own names, we are enclosing the following documents:

     1.   The Prospectus;

     2. The Letter of Transmittal  for your use and for the  information of your
clients;

     3. A form of Notice of Guaranteed Delivery;

     4. A form of letter  which may be sent to your  clients for whose  accounts
you hold  Existing  Senior  Notes  registered  in your  name or the name of your
nominee, along with an instruction form for obtaining such clients' instructions
with respect to the Exchange Offer; and

     5.  Guidelines  for  Certification  of  Taxpayer  Identification  Number on
Substitute Form W-9.

     Your prompt  action is  required.  The  Exchange  Offer will expire at 5:00
p.m., New York City time, on ____________,  2000, unless extended by the Company
(the "Expiration Date"). Existing Senior Notes tendered pursuant to the Exchange
Offer may be withdrawn at any time before the Expiration Date.

     To  participate in the Exchange  Offer,  certificates  for Existing  Senior
Notes, or a timely confirmation of a book-entry transfer of such Existing Senior
Notes  into the  Exchange  Agent's  account


<PAGE>

at the  Depository  Trust  Company,  together  with a duly executed and properly
completed  Letter of  Transmittal  (or  facsimile  thereof),  with any  required
signature  guarantees  and any other required  documents,  should be sent to the
Exchange Agent,  all in accordance with the instructions set forth in the Letter
of Transmittal and the Prospectus.

     If the registered  holder of Existing  Senior Notes desires to tender,  but
such  Existing  Senior  Notes are not  immediately  available,  or time will not
permit such holder's Existing Senior Notes or other required  documents to reach
the Exchange Agent before the  Expiration  Date, or the procedure for book-entry
transfer  cannot be  completed  on a timely  basis,  a tender may be effected by
following the guaranteed delivery  procedures  described in the Prospectus under
"The Exchange Offer - Guaranteed Delivery Procedures."

     We will, upon request,  reimburse  brokers,  dealers,  commercial banks and
trust companies for reasonable and necessary costs and expenses incurred by them
in forwarding the Prospectus and the related  documents to the beneficial owners
of Existing Senior Notes held by them as nominee or in a fiduciary capacity.  We
will pay or cause to be paid all transfer  taxes  applicable  to the exchange of
Existing  Senior Notes  pursuant to the Exchange  Offer,  except as set forth in
Instruction 6 of the Letter of Transmittal.

     Any inquiries you may have with respect to the Exchange  Offer, or requests
for  additional  copies of the  enclosed  materials,  should be  directed to the
Exchange Agent at its address and telephone number set forth on the front of the
Letter of Transmittal.

                                       Very truly yours,



                                       FIRSTAR BANK, N.A.


     Nothing  herein or in the enclosed  documents  shall  constitute you or any
person as an agent of the Company or the Exchange Agent, or authorize you or any
other person to use any document or make any  statements  on behalf of either of
them with respect to the Exchange Offer, except for statements expressly made in
the Prospectus or the Letter of Transmittal.




                                      -2-



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