WISCONSIN POWER & LIGHT CO
8-K, 1995-11-22
ELECTRIC & OTHER SERVICES COMBINED
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                       SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C. 20549

                             _______________________

                                    FORM 8-K


                                 CURRENT REPORT


                       Pursuant to Section 13 or 15(d) of
                       the Securities Exchange Act of 1934

                             _______________________


                  Date of Report
                  (Date of earliest
                  event reported):    November 10, 1995


                        Wisconsin Power and Light Company         
             (Exact name of registrant as specified in its charter)


     Wisconsin                        0-337                    39-0714890    
   (State or other              (Commission File             (IRS Employer   
   jurisdiction of                   Number)              Identification No.)
   incorporation)


                222 West Washington Avenue, Madison, Wisconsin 53703      
          (Address of principal executive offices, including zip code)


                                 (608) 252-3311          
                         (Registrant's telephone number)

   <PAGE>

   Item 5.     Other Events.

          WPL Holdings, Inc. ("WPL"), a holding company incorporated under
   the laws of the State of Wisconsin and the parent corporation of Wisconsin
   Power and Light Company (the "Company"), IES Industries Inc. ("IES"), a
   holding company incorporated under the laws of the State of Iowa,
   Interstate Power Company ("IPC"), an operating public utility incorporated
   under the laws of the State of Delaware, and AMW Acquisition, Inc.
   ("AMW"), a wholly owned subsidiary of WPL incorporated under the laws of
   the State of Delaware, have entered into an Agreement and Plan of Merger,
   dated as of November 10, 1995 (the "Merger Agreement"), providing for (a)
   the merger of IES with and into WPL, which merger will result in the
   combination of WPL and IES as a single holding company (the "IES Merger"),
   and (b) the merger of AMW with and into IPC, which merger will result in
   IPC becoming a wholly owned subsidiary of WPL (the "IPC Merger", and
   together with the IES Merger, the "Merger").  The Merger has been approved
   by the Board of Directors of each of the constituent companies and is
   expected to close promptly after all of the conditions to the consummation
   of the Merger, including obtaining shareowner approvals and all applicable
   regulatory approvals, are fulfilled or waived.  The regulatory approval
   process is expected to take approximately 12 to 18 months.

          In the Merger, WPL will change its name to Interstate Energy
   Corporation ("Interstate Energy") and, following the Merger, Interstate
   Energy will be the parent company of the Company, IES's present utility
   subsidiary, IES Utilities Inc. ("Utilities"), and IPC, and will be
   registered under the Public Utility Holding Company Act of 1935, as
   amended.

          The Merger Agreement contains certain covenants of the parties
   pending the consummation of the Merger.  Generally, the parties and their
   subsidiaries, including the Company, must carry on their businesses in the
   ordinary course consistent with past practice, may not increase dividends
   on common stock in excess of current levels in the case of IES and IPC and
   beyond a specified limit in the case of WPL, and may not issue any capital
   stock beyond certain limits.  The Merger Agreement also contains
   restrictions on, among other things, charter and bylaw amendments,
   acquisitions, capital expenditures, dispositions, incurrence of
   indebtedness, certain increases in employee compensation and benefits, and
   affiliate transactions.

          Following the Merger, the Company's Board of Directors is expected
   to consist of 15 directors, 6 of whom will be designated by WPL, 6 of whom
   will be designated by IES and 3 of whom will be designated by IPC.  Mr.
   Erroll B. Davis, Jr., the current President and Chief Executive Officer of
   WPL and the Company, will continue to serve as President and Chief
   Executive Officer of Interstate Energy and the Company after the Merger
   and will also become the Chief Executive Officer of Utilities and IPC.

          The business of Interstate Energy will consist of utility
   operations and various non-utility enterprises, and it is expected that
   its utility subsidiaries will serve more than 850,000 electric customers
   and 360,000 natural gas customers in Iowa, Illinois, Minnesota and
   Wisconsin.

          In response to the announcement of the Merger, Standard and Poor's
   Corporation ("S&P") placed its ratings of the Company's "AA"  rated senior
   secured debt, "AA-" rated preferred stock and "A-1+" rated commercial
   paper on CreditWatch with negative implications.  The ratings of
   Utilities' "A" rated senior secured debt, "A-" rated preferred stock and
   "A-1" rated commercial paper were placed on CreditWatch with positive
   implications.  The ratings of IPC's "A+" rated senior secured debt, "A"
   rated senior unsecured debt, "A" rated preferred stock and "A-1" rated
   commercial paper were affirmed.  S&P indicated that if the Merger is
   completed, the likely credit ratings for the senior secured debt of the
   Company, Utilities and IPC are expected to be "A+".

          Moody's Investors Service ("Moody's") placed the Company's "Aa2"
   rated senior secured debt, "(P)Aa2" rated senior secured debt shelf
   registration, "aa3" rated preferred stock, "(P)aa3" rated preferred stock
   shelf registration and "Aa3" counterparty rating under review for possible
   downgrade.  The ratings of Utilities' "A2" rated senior secured debt,
   "(P)A2" rated senior secured debt shelf registration, "A2" rated secured
   pollution control bonds, "A3" unsecured pollution control bonds, "(P)A3"
   rated senior unsecured debt shelf registration, "(P)Baa1" rated junior
   subordinated unsecured debt shelf registration and "A3" counterparty
   rating have been placed under review for possible upgrade.  In addition,
   IPC's "A1" rated senior secured debt, "(P)A1" rated senior secured debt
   shelf registration, "A2" rated unsecured pollution control bonds, "a2"
   rated preferred stock, "(P)a2" rated preferred stock shelf registration
   and "A2" counterparty rating have been placed under review for possible
   downgrade.  Moody's indicated that the "Prime-1" short term ratings of the
   three companies are not under review.

          WPL, IES and IPC recognize that, as a result of the new registered
   holding company structure, the Securities and Exchange Commission (the
   "SEC") may require divestiture of their existing gas operations and
   certain non-utility operations, but they will seek approval from the SEC
   to maintain such businesses.  If divestiture is ultimately required, the
   SEC has historically allowed companies sufficient time to accomplish
   divestitures in a manner that protects shareowner value.  The Company
   cannot predict what action may be required by the SEC or the effect of any
   divestiture if required.  Furthermore, the Company cannot predict what
   actions might be required by other federal or state regulatory authorities
   as a condition to approval of the Merger.

          The Merger will not impair the lien of the Company's Indenture of
   Mortgage or Deed of Trust, dated August 1, 1941 (as amended and
   supplemented, the "Indenture"), securing its First Mortgage Bonds, will
   not impair the rights and powers of the trustees or debtholders under the
   Indenture, and will not impair or alter in any way the rights, preferences
   or limitations of any shares of the Company's Preferred Stock, without par
   value.

          The Merger Agreement is filed as an exhibit to this Current Report
   on Form 8-K and is incorporated herein by reference.  The brief summary of
   certain provisions of the Merger Agreement set forth above is qualified in
   its entirety by reference to that agreement.


   Item 7.     Financial Statements and Exhibits.

          (a)  Not Applicable.

          (b)  Not Applicable.

          (c)  Exhibit.

               The exhibit listed in the accompanying Exhibit Index is filed
               as part of this Current Report on Form 8-K.

   <PAGE>
                                   SIGNATURES


          Pursuant to the requirements of the Securities Exchange Act of
   1934, the Registrant has duly caused this report to be signed on its
   behalf by the undersigned thereunto duly authorized.


                                        WISCONSIN POWER AND LIGHT COMPANY


   Date:  November 22, 1995             By:  /s/ William D. Harvey           
                                        William D. Harvey
                                        Senior Vice President

   <PAGE>
                        WISCONSIN POWER AND LIGHT COMPANY

                            EXHIBIT INDEX TO FORM 8-K
                         Report Dated November 10, 1995



                             Exhibit

        (2.1)    Agreement and Plan of Merger, dated as
                 of November 10, 1995, by and among WPL
                 Holdings, Inc., IES Industries Inc.,
                 Interstate Power Company and AMW
                 Acquisition, Inc.*


   * The schedules and exhibits to this document are not being filed
     herewith.  The Registrant agrees to furnish supplementally a copy of any
     such schedule or exhibit to the Securities and Exchange Commission upon
     request.





                          AGREEMENT AND PLAN OF MERGER

                                  By and Among

                               WPL HOLDINGS, INC.,

                              IES INDUSTRIES INC.,

                            INTERSTATE POWER COMPANY

                                       and

                              AMW ACQUISITION, INC.




                          Dated as of November 10, 1995

   <PAGE>

                                TABLE OF CONTENTS


                                                                         Page


                                    ARTICLE I

                                   THE MERGER

   Section 1.1    The Merger . . . . . . . . . . . . . . . . . . . . . . .  2
   Section 1.2    Effects of the Merger  . . . . . . . . . . . . . . . . .  2
   Section 1.3    Effective Time of the Merger . . . . . . . . . . . . . .  3


                                   ARTICLE II

                               TREATMENT OF SHARES

   Section 2.1    Effect of the Merger on Capital Stock  . . . . . . . . .  3
                  (a)  Cancellation of Certain Common Stock. . . . . . . .  3
                  (b)  Conversion of Certain Common Stock. . . . . . . . .  4
                  (c)  No Change in Interstate Preferred Stock . . . . . .  4
                  (d)  Conversion of AMW Common Stock  . . . . . . . . . .  5
   Section 2.2    Dissenting Shares  . . . . . . . . . . . . . . . . . . .  5
   Section 2.3    Issuance of New Certificates . . . . . . . . . . . . . .  5
                  (a)  Deposit with Exchange Agent . . . . . . . . . . . .  5
                  (b)  Issuance Procedures . . . . . . . . . . . . . . . .  6
                  (c)  Distributions with Respect to 
                       Unsurrendered Shares  . . . . . . . . . . . . . . .  6
                  (d)  No Fractional Securities  . . . . . . . . . . . . .  7
                  (e)  Closing of Common Stock Transfer Books  . . . . . .  8
                  (f)  Termination of Exchange Agent . . . . . . . . . . .  8


                                   ARTICLE III

                                   THE CLOSING

   Section 3.1    The Closing  . . . . . . . . . . . . . . . . . . . . . .  8


                                   ARTICLE IV

                      REPRESENTATIONS AND WARRANTIES OF WPL

   Section 4.1    Organization and Qualification . . . . . . . . . . . . .  8
   Section 4.2    Subsidiaries . . . . . . . . . . . . . . . . . . . . . .  9
   Section 4.3    Capitalization . . . . . . . . . . . . . . . . . . . . . 10
   Section 4.4    Authority; Noncontravention; Statutory
                  Approvals; Compliance  . . . . . . . . . . . . . . . . . 11
                  (a)  Authority . . . . . . . . . . . . . . . . . . . . . 11
                  (b)  Noncontravention  . . . . . . . . . . . . . . . . . 12
                  (c)  Statutory Approvals . . . . . . . . . . . . . . . . 13
                  (d)  Compliance  . . . . . . . . . . . . . . . . . . . . 13
   Section 4.5    Reports and Financial Statements . . . . . . . . . . . . 14
   Section 4.6    Absence of Certain Changes or Events . . . . . . . . . . 15
   Section 4.7    Litigation . . . . . . . . . . . . . . . . . . . . . . . 15
   Section 4.8    Registration Statement and Proxy Statement . . . . . . . 16
   Section 4.9    Tax Matters  . . . . . . . . . . . . . . . . . . . . . . 16
                  (a)  Filing of Timely Tax Returns  . . . . . . . . . . . 16
                  (b)  Payment of Taxes  . . . . . . . . . . . . . . . . . 16
                  (c)  Tax Reserves  . . . . . . . . . . . . . . . . . . . 16
                  (d)  Tax Liens . . . . . . . . . . . . . . . . . . . . . 17
                  (e)  Withholding Taxes . . . . . . . . . . . . . . . . . 17
                  (f)  Extensions of Time for Filing Tax Returns . . . . . 17
                  (g)  Waivers of Statute of Limitations . . . . . . . . . 17
                  (h)  Expiration of Statute of Limitations  . . . . . . . 17
                  (i)  Audit, Administrative and Court
                       Proceedings . . . . . . . . . . . . . . . . . . . . 17
                  (j)  Powers of Attorney  . . . . . . . . . . . . . . . . 17
                  (k)  Tax Rulings . . . . . . . . . . . . . . . . . . . . 17
                  (l)  Availability of Tax Returns . . . . . . . . . . . . 17
                  (m)  Tax Sharing Agreements  . . . . . . . . . . . . . . 18
                  (n)  Code Section 280G . . . . . . . . . . . . . . . . . 18
                  (o)  Liability for Others  . . . . . . . . . . . . . . . 18
   Section 4.10   Employee Matters; ERISA  . . . . . . . . . . . . . . . . 18
                  (a)  Benefit Plans . . . . . . . . . . . . . . . . . . . 18
                  (b)  Contributions . . . . . . . . . . . . . . . . . . . 19
                  (c)  Qualification; Compliance . . . . . . . . . . . . . 19
                  (d)  Liabilities . . . . . . . . . . . . . . . . . . . . 19
                  (e)  Welfare Plans . . . . . . . . . . . . . . . . . . . 20
                  (f)  Documents made Available  . . . . . . . . . . . . . 20
                  (g)  Payments Resulting from Merger  . . . . . . . . . . 20
                  (h)  Labor Agreements  . . . . . . . . . . . . . . . . . 21
   Section 4.11   Environmental Protection . . . . . . . . . . . . . . . . 21
                  (a)  Compliance  . . . . . . . . . . . . . . . . . . . . 21
                  (b)  Environmental Permits . . . . . . . . . . . . . . . 22
                  (c)  Environmental Claims  . . . . . . . . . . . . . . . 22
                  (d)  Releases  . . . . . . . . . . . . . . . . . . . . . 22
                  (e)  Predecessors  . . . . . . . . . . . . . . . . . . . 22
                  (f)  Disclosure  . . . . . . . . . . . . . . . . . . . . 23
                       (i)  "Environmental Claim . . . . . . . . . . . . . 23
                      (ii)  "Environmental Laws  . . . . . . . . . . . . . 23
                     (iii)  "Hazardous Materials . . . . . . . . . . . . . 24
                      (iv)  "Release . . . . . . . . . . . . . . . . . . . 24
   Section 4.12   Regulation as a Utility  . . . . . . . . . . . . . . . . 24
   Section 4.13   Vote Required  . . . . . . . . . . . . . . . . . . . . . 25
   Section 4.14   Accounting Matters . . . . . . . . . . . . . . . . . . . 25
   Section 4.15   Applicability of Certain Provisions of Wisconsin Law,
                  Etc  . . . . . . . . . . . . . . . . . . . . . . . . . . 25
   Section 4.16   Opinion of Financial Advisor . . . . . . . . . . . . . . 26
   Section 4.17   Insurance  . . . . . . . . . . . . . . . . . . . . . . . 26
   Section 4.18   Ownership of IES and Interstate Common Stock . . . . . . 26
   Section 4.19   WPL Rights Agreement . . . . . . . . . . . . . . . . . . 26
   Section 4.20   Operations of Nuclear Power Plant  . . . . . . . . . . . 26


                                    ARTICLE V

                      REPRESENTATIONS AND WARRANTIES OF IES

   Section 5.1    Organization and Qualification . . . . . . . . . . . . . 27
   Section 5.2    Subsidiaries . . . . . . . . . . . . . . . . . . . . . . 27
   Section 5.3    Capitalization . . . . . . . . . . . . . . . . . . . . . 28
   Section 5.4    Authority; Noncontravention; Statutory Approvals;
                  Compliance . . . . . . . . . . . . . . . . . . . . . . . 29
                  (a)  Authority . . . . . . . . . . . . . . . . . . . . . 29
                  (b)  Noncontravention  . . . . . . . . . . . . . . . . . 29
                  (c)  Statutory Approvals . . . . . . . . . . . . . . . . 30
                  (d)  Compliance  . . . . . . . . . . . . . . . . . . . . 30
   Section 5.5    Reports and Financial Statements . . . . . . . . . . . . 31
   Section 5.6    Absence of Certain Changes or Events . . . . . . . . . . 32
   Section 5.7    Litigation . . . . . . . . . . . . . . . . . . . . . . . 32
   Section 5.8    Registration Statement and Proxy Statement . . . . . . . 33
   Section 5.9    Tax Matters  . . . . . . . . . . . . . . . . . . . . . . 33
                  (a)  Filing of Timely Tax Returns  . . . . . . . . . . . 33
                  (b)  Payment of Taxes  . . . . . . . . . . . . . . . . . 33
                  (c)  Tax Reserves  . . . . . . . . . . . . . . . . . . . 33
                  (d)  Tax Liens . . . . . . . . . . . . . . . . . . . . . 34
                  (e)  Withholding Taxes . . . . . . . . . . . . . . . . . 34
                  (f)  Extensions of Time for Filing Tax
                       Returns . . . . . . . . . . . . . . . . . . . . . . 34
                  (g)  Waivers of Statute of Limitations . . . . . . . . . 34
                  (h)  Expiration of Statute of Limitations  . . . . . . . 34
                  (i)  Audit, Administrative and Court
                       Proceedings . . . . . . . . . . . . . . . . . . . . 34
                  (j)  Powers of Attorney  . . . . . . . . . . . . . . . . 34
                  (k)  Tax Rulings . . . . . . . . . . . . . . . . . . . . 34
                  (l)  Availability of Tax Returns . . . . . . . . . . . . 34
                  (m)  Tax Sharing Agreements  . . . . . . . . . . . . . . 35
                  (n)  Code Section 280G . . . . . . . . . . . . . . . . . 35
                  (o)  Liability for Others  . . . . . . . . . . . . . . . 35
   Section 5.10   Employee Matters; ERISA  . . . . . . . . . . . . . . . . 35
                  (a)  Benefit Plans . . . . . . . . . . . . . . . . . . . 35
                  (b)  Contributions . . . . . . . . . . . . . . . . . . . 35
                  (c)  Qualification; Compliance . . . . . . . . . . . . . 35
                  (d)  Liabilities . . . . . . . . . . . . . . . . . . . . 36
                  (e)  Welfare Plans . . . . . . . . . . . . . . . . . . . 36
                  (f)  Documents made Available  . . . . . . . . . . . . . 36
                  (g)  Payments Resulting from Merger  . . . . . . . . . . 37
                  (h)  Labor Agreements  . . . . . . . . . . . . . . . . . 37
   Section 5.11   Environmental Protection . . . . . . . . . . . . . . . . 38
                  (a)  Compliance  . . . . . . . . . . . . . . . . . . . . 38
                  (b)  Environmental Permits . . . . . . . . . . . . . . . 38
                  (c)  Environmental Claims  . . . . . . . . . . . . . . . 38
                  (d)  Releases  . . . . . . . . . . . . . . . . . . . . . 39
                  (e)  Predecessors  . . . . . . . . . . . . . . . . . . . 39
                  (f)  Disclosure  . . . . . . . . . . . . . . . . . . . . 39
   Section 5.12   Regulation as a Utility  . . . . . . . . . . . . . . . . 39
   Section 5.13   Vote Required  . . . . . . . . . . . . . . . . . . . . . 39
   Section 5.14   Accounting Matters . . . . . . . . . . . . . . . . . . . 40
   Section 5.15   Applicability of Certain Iowa Law  . . . . . . . . . . . 40
   Section 5.16   Opinion of Financial Advisor . . . . . . . . . . . . . . 40
   Section 5.17   Insurance  . . . . . . . . . . . . . . . . . . . . . . . 40
   Section 5.18   Ownership of WPL and Interstate Common Stock . . . . . . 40
   Section 5.19   IES Rights Agreement . . . . . . . . . . . . . . . . . . 40
   Section 5.20   Operations of Nuclear Power Plant  . . . . . . . . . . . 41


                                   ARTICLE VI

                  REPRESENTATIONS AND WARRANTIES OF INTERSTATE

   Section 6.1    Organization and Qualification . . . . . . . . . . . . . 41
   Section 6.2    Subsidiaries . . . . . . . . . . . . . . . . . . . . . . 42
   Section 6.3    Capitalization . . . . . . . . . . . . . . . . . . . . . 42
   Section 6.4    Authority; Noncontravention; Statutory Approvals;
                  Compliance . . . . . . . . . . . . . . . . . . . . . . . 43
                  (a)  Authority . . . . . . . . . . . . . . . . . . . . . 43
                  (b)  Noncontravention  . . . . . . . . . . . . . . . . . 44
                  (c)  Statutory Approvals . . . . . . . . . . . . . . . . 44
                  (d)  Compliance  . . . . . . . . . . . . . . . . . . . . 45
   Section 6.5    Reports and Financial Statements . . . . . . . . . . . . 45
   Section 6.6    Absence of Certain Changes or Events . . . . . . . . . . 46
   Section 6.7    Litigation . . . . . . . . . . . . . . . . . . . . . . . 46
   Section 6.8    Registration Statement and Proxy Statement . . . . . . . 47
   Section 6.9    Tax Matters  . . . . . . . . . . . . . . . . . . . . . . 48
                  (a)  Filing of Timely Tax Returns  . . . . . . . . . . . 48
                  (b)  Payment of Taxes  . . . . . . . . . . . . . . . . . 48
                  (c)  Tax Reserves  . . . . . . . . . . . . . . . . . . . 48
                  (d)  Tax Liens . . . . . . . . . . . . . . . . . . . . . 48
                  (e)  Withholding Taxes . . . . . . . . . . . . . . . . . 48
                  (f)  Extensions of Time for Filing Tax
                       Returns . . . . . . . . . . . . . . . . . . . . . . 48
                  (g)  Waivers of Statute of Limitations . . . . . . . . . 48
                  (h)  Expiration of Statute of Limitations  . . . . . . . 48
                  (i)  Audit, Administrative and Court
                       Proceedings . . . . . . . . . . . . . . . . . . . . 49
                  (j)  Powers of Attorney  . . . . . . . . . . . . . . . . 49
                  (k)  Tax Rulings . . . . . . . . . . . . . . . . . . . . 49
                  (l)  Availability of Tax Returns . . . . . . . . . . . . 49
                  (m)  Tax Sharing Agreements  . . . . . . . . . . . . . . 49
                  (n)  Code Section 280G . . . . . . . . . . . . . . . . . 49
                  (o)  Liability for Others  . . . . . . . . . . . . . . . 49
   Section 6.10   Employee Matters; ERISA  . . . . . . . . . . . . . . . . 49
                  (a)  Benefit Plans . . . . . . . . . . . . . . . . . . . 49
                  (b)  Contributions . . . . . . . . . . . . . . . . . . . 50
                  (c)  Qualification; Compliance . . . . . . . . . . . . . 50
                  (d)  Liabilities . . . . . . . . . . . . . . . . . . . . 50
                  (e)  Welfare Plans . . . . . . . . . . . . . . . . . . . 50
                  (f)  Documents made Available  . . . . . . . . . . . . . 51
                  (g)  Payments Resulting from Merger  . . . . . . . . . . 51
                  (h)  Labor Agreements  . . . . . . . . . . . . . . . . . 52
   Section 6.11   Environmental Protection . . . . . . . . . . . . . . . . 52
                  (a)  Compliance  . . . . . . . . . . . . . . . . . . . . 52
                  (b)  Environmental Permits . . . . . . . . . . . . . . . 53
                  (c)  Environmental Claims  . . . . . . . . . . . . . . . 53
                  (d)  Releases  . . . . . . . . . . . . . . . . . . . . . 53
                  (e)  Predecessors  . . . . . . . . . . . . . . . . . . . 53
                  (f)  Disclosure  . . . . . . . . . . . . . . . . . . . . 54
   Section 6.12   Regulation as a Utility  . . . . . . . . . . . . . . . . 54
   Section 6.13   Vote Required  . . . . . . . . . . . . . . . . . . . . . 54
   Section 6.14   Accounting Matters . . . . . . . . . . . . . . . . . . . 54
   Section 6.15   Applicability of Certain Delaware Law, Etc . . . . . . . 54
   Section 6.16   Opinion of Financial Advisor . . . . . . . . . . . . . . 55
   Section 6.17   Insurance  . . . . . . . . . . . . . . . . . . . . . . . 55
   Section 6.18   Ownership of WPL and IES Common Stock  . . . . . . . . . 55


                                   ARTICLE VII

                     CONDUCT OF BUSINESS PENDING THE MERGER

   Section 7.1    Covenants of the Parties . . . . . . . . . . . . . . . . 55
   Section 7.2    Ordinary Course of Business  . . . . . . . . . . . . . . 55
   Section 7.3    Dividends  . . . . . . . . . . . . . . . . . . . . . . . 56
   Section 7.4    Issuance of Securities . . . . . . . . . . . . . . . . . 58
   Section 7.5    Charter Documents  . . . . . . . . . . . . . . . . . . . 59
   Section 7.6    No Acquisitions  . . . . . . . . . . . . . . . . . . . . 59
   Section 7.7    Capital Expenditures and Emission Allowances . . . . . . 60
   Section 7.8    No Dispositions  . . . . . . . . . . . . . . . . . . . . 60
   Section 7.9    Indebtedness . . . . . . . . . . . . . . . . . . . . . . 60
   Section 7.10   Compensation, Benefits . . . . . . . . . . . . . . . . . 61
   Section 7.11   1935 Act . . . . . . . . . . . . . . . . . . . . . . . . 61
   Section 7.12   Transmission, Generation . . . . . . . . . . . . . . . . 62
   Section 7.13   Accounting . . . . . . . . . . . . . . . . . . . . . . . 62
   Section 7.14   Pooling  . . . . . . . . . . . . . . . . . . . . . . . . 62
   Section 7.15   Taxfree Status . . . . . . . . . . . . . . . . . . . . . 62
   Section 7.16   Affiliate Transactions . . . . . . . . . . . . . . . . . 62
   Section 7.17   Cooperation, Notification  . . . . . . . . . . . . . . . 63
   Section 7.18   Thirdparty Consents  . . . . . . . . . . . . . . . . . . 63
   Section 7.19   No Breach  . . . . . . . . . . . . . . . . . . . . . . . 64
   Section 7.20   Taxexempt Status . . . . . . . . . . . . . . . . . . . . 64
   Section 7.21   Transition Steering Team . . . . . . . . . . . . . . . . 64
   Section 7.22   Company Actions  . . . . . . . . . . . . . . . . . . . . 64
   Section 7.23   Tax Matters  . . . . . . . . . . . . . . . . . . . . . . 64
   Section 7.24   Discharge of Liabilities . . . . . . . . . . . . . . . . 65
   Section 7.25   Contracts  . . . . . . . . . . . . . . . . . . . . . . . 65
   Section 7.26   Insurance  . . . . . . . . . . . . . . . . . . . . . . . 65
   Section 7.27   Permits  . . . . . . . . . . . . . . . . . . . . . . . . 65

                                  ARTICLE VIII

                              ADDITIONAL AGREEMENTS

   Section 8.1    Access to Information  . . . . . . . . . . . . . . . . . 66
   Section 8.2    Joint Proxy Statement and Registration Statement . . . . 66
                  (a)  Preparation and Filing  . . . . . . . . . . . . . . 66
                  (b)  Letter of WPL's Accountants . . . . . . . . . . . . 67
                  (c)  Letter of IES's Accountants . . . . . . . . . . . . 67
                  (d)  Letter of Interstate's Accountants  . . . . . . . . 67
                  (e)  Fairness Opinions . . . . . . . . . . . . . . . . . 68
   Section 8.3    Regulatory Matters.  . . . . . . . . . . . . . . . . . . 68
                  (a)  HSR Filings . . . . . . . . . . . . . . . . . . . . 68
                  (b)  Other Regulatory Approvals  . . . . . . . . . . . . 68
   Section 8.4    Shareholder Approval . . . . . . . . . . . . . . . . . . 69
                  (a)  Approval of IES Shareholders  . . . . . . . . . . . 69
                  (b)  Approval of WPL Shareholders  . . . . . . . . . . . 69
                  (c)  Approval of Interstate Shareholders . . . . . . . . 69
                  (d)  Meeting Date  . . . . . . . . . . . . . . . . . . . 70
                  (e)  Fairness Opinions Not Withdrawn . . . . . . . . . . 70
   Section 8.5    Director and Officer Indemnification . . . . . . . . . . 70
                  (a)  Indemnification . . . . . . . . . . . . . . . . . . 70
                  (b)  Insurance . . . . . . . . . . . . . . . . . . . . . 71
                  (c)  Successors  . . . . . . . . . . . . . . . . . . . . 71
                  (d)  Survival of Indemnification . . . . . . . . . . . . 72
                  (e)  Benefit . . . . . . . . . . . . . . . . . . . . . . 72
   Section 8.6    Disclosure Schedules.  . . . . . . . . . . . . . . . . . 72
   Section 8.7    Public Announcements.  . . . . . . . . . . . . . . . . . 73
   Section 8.8    Rule 145 Affiliates  . . . . . . . . . . . . . . . . . . 73
   Section 8.9    Employee Agreements and Workforce Matters  . . . . . . . 73
                  (a)  Certain Employee Agreements . . . . . . . . . . . . 73
                  (b)  Workforce Matters . . . . . . . . . . . . . . . . . 73
   Section 8.10   Employee Benefit Plans . . . . . . . . . . . . . . . . . 74
   Section 8.11   Stock Option and Other Stock Plans . . . . . . . . . . . 75
                  (a)  Amendment of Stock Plans and Agreements . . . . . . 75
                  (b)  Company Action  . . . . . . . . . . . . . . . . . . 76
   Section 8.12   No Solicitations . . . . . . . . . . . . . . . . . . . . 76
   Section 8.13   Company Board of Directors . . . . . . . . . . . . . . . 77
   Section 8.14   Company Officers . . . . . . . . . . . . . . . . . . . . 78
   Section 8.15   Employment Contracts . . . . . . . . . . . . . . . . . . 80
   Section 8.16   PostMerger Operations  . . . . . . . . . . . . . . . . . 80
   Section 8.17   Expenses . . . . . . . . . . . . . . . . . . . . . . . . 80
   Section 8.18   Further Assurances . . . . . . . . . . . . . . . . . . . 81
   Section 8.19   Charter and Bylaw Amendments.  . . . . . . . . . . . . . 81


                                   ARTICLE IX

                                   CONDITIONS

   Section 9.1    Conditions to each Party's Obligation to Effect the
                  Merger.  . . . . . . . . . . . . . . . . . . . . . . . . 82
                  (a)  Shareholder Approvals . . . . . . . . . . . . . . . 82
                  (b)  No Injunction . . . . . . . . . . . . . . . . . . . 82
                  (c)  Registration Statement  . . . . . . . . . . . . . . 82
                  (d)  Listing of Shares . . . . . . . . . . . . . . . . . 82
                  (e)  Statutory Approvals . . . . . . . . . . . . . . . . 82
                  (f)  Pooling . . . . . . . . . . . . . . . . . . . . . . 83

   Section 9.2    Further Conditions to Obligation of IES to Effect the
                  IES Merger . . . . . . . . . . . . . . . . . . . . . . . 83
                  (a)  Performance of Obligations  . . . . . . . . . . . . 83
                  (b)  Representations and Warranties  . . . . . . . . . . 83
                  (c)  Closing Certificates  . . . . . . . . . . . . . . . 83
                  (d)  Material Adverse Effect . . . . . . . . . . . . . . 83
                  (e)  Tax Opinions  . . . . . . . . . . . . . . . . . . . 84
                  (f)  Required Consents . . . . . . . . . . . . . . . . . 84
                  (g)  Affiliate Agreements  . . . . . . . . . . . . . . . 84
   Section 9.3    Further Conditions to Obligation of Interstate to
                  Effect the Interstate Merger . . . . . . . . . . . . . . 84
                  (a)  Performance of Obligations  . . . . . . . . . . . . 84
                  (b)  Representations and Warranties  . . . . . . . . . . 84
                  (c)  Closing Certificates  . . . . . . . . . . . . . . . 85
                  (d)  Material Adverse Effect . . . . . . . . . . . . . . 85
                  (e)  Tax Opinions  . . . . . . . . . . . . . . . . . . . 85
                  (f)  Required Consents . . . . . . . . . . . . . . . . . 85
                  (g)  Affiliate Agreements  . . . . . . . . . . . . . . . 85
   Section 9.4    Further Conditions to Obligation of WPL to Effect the
                  Merger . . . . . . . . . . . . . . . . . . . . . . . . . 86
                  (a)  Performance of Obligations  . . . . . . . . . . . . 86
                  (b)  Representations and Warranties  . . . . . . . . . . 86
                  (c)  Closing Certificates  . . . . . . . . . . . . . . . 86
                  (d)  Material Adverse Effect . . . . . . . . . . . . . . 86
                  (e)  Tax Opinions  . . . . . . . . . . . . . . . . . . . 86
                  (f)  Required Consents . . . . . . . . . . . . . . . . . 87
                  (g)  Affiliate Agreements  . . . . . . . . . . . . . . . 87


                                    ARTICLE X

                        TERMINATION, AMENDMENT AND WAIVER

   Section 10.1   Termination  . . . . . . . . . . . . . . . . . . . . . . 87
   Section 10.2   Effect of Termination  . . . . . . . . . . . . . . . . . 92
   Section 10.3   Termination Fee; Expenses  . . . . . . . . . . . . . . . 92
                  (a)  Termination Fee Upon Breach or
                       Withdrawal of Approval  . . . . . . . . . . . . . . 92
                  (b)  Additional Termination Fee  . . . . . . . . . . . . 93
                  (c)  Second Termination Fee  . . . . . . . . . . . . . . 94
                  (d)  Expenses  . . . . . . . . . . . . . . . . . . . . . 95
                  (e)  Limitation on Termination Fees  . . . . . . . . . . 95
                  (f)  Certain Definitions.  . . . . . . . . . . . . . .   96
                       (i)  Participation Percentage . . . . . . . . . . . 96
                      (ii)  Target Party . . . . . . . . . . . . . . . . . 96
   Section 10.4   Amendment  . . . . . . . . . . . . . . . . . . . . . . . 96
   Section 10.5   Waiver . . . . . . . . . . . . . . . . . . . . . . . . . 97

                                   ARTICLE XI

                               GENERAL PROVISIONS

   Section 11.1   Nonsurvival; Effect of Representations and Warranties  . 97
   Section 11.2   Brokers  . . . . . . . . . . . . . . . . . . . . . . . . 98
   Section 11.3   Notices  . . . . . . . . . . . . . . . . . . . . . . . . 98
   Section 11.4   Miscellaneous. . . . . . . . . . . . . . . . . . . . . . 99
   Section 11.5   Interpretation.  . . . . . . . . . . . . . . . . . . .  100
   Section 11.6   Counterparts; Effect.  . . . . . . . . . . . . . . . .  100
   Section 11.7   Parties in Interest  . . . . . . . . . . . . . . . . .  100
   Section 11.8   Binding Effect; Benefits . . . . . . . . . . . . . . .  101
   Section 11.9   WAIVER OF JURY TRIAL AND CERTAIN DAMAGES.  . . . . . .  101
   Section 11.10  Enforcement  . . . . . . . . . . . . . . . . . . . . .  101

   EXHIBITS

   Exhibit A      - WPL/IES Stock Option Agreement
   Exhibit B      - WPL/Interstate Stock Option Agreement
   Exhibit C      - IES/WPL Stock Option Agreement
   Exhibit D      - IES/Interstate Stock Option Agreement
   Exhibit E      - Interstate/WPL Stock Option Agreement
   Exhibit F      - Interstate/IES Stock Option Agreement
   Exhibit 1.3    - Plan of Merger
   Exhibit 8.8(a) - Affiliate Agreement of WPL
   Exhibit 8.8(b) - Affiliate Agreement of IES and Interstate 
   Exhibit 8.15.1 - WPL Employment Contract with Mr. Liu
   Exhibit 8.15.2 - WPL Employment Contract with Mr. Davis
   Exhibit 8.15.3 - WPL Employment Contract with 
                    Mr. Stoppelmoor
   Exhibit 8.15.4 - WPL Employment Contract with Mr. Chase
   Exhibit 8.15.5 - WPL Employment Contract with Mr. Fisher

   <PAGE>
                             INDEX OF DEFINED TERMS


   TERM  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   PAGE #

   1935 Act  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    9

   Affiliate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   25
   Affiliate Agreement . . . . . . . . . . . . . . . . . . . . . . . . .   73
   Affiliated Employees  . . . . . . . . . . . . . . . . . . . . . . . .   74
   Agreement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    1
   AMW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    1
   AMW Common Stock  . . . . . . . . . . . . . . . . . . . . . . . . . .    5
   Atomic Energy Act . . . . . . . . . . . . . . . . . . . . . . . . . .   14

   Business Combination  . . . . . . . . . . . . . . . . . . . . . . . .   88
   Business Combination Proposal . . . . . . . . . . . . . . . . . . . .   77

   Canceled Common Shares  . . . . . . . . . . . . . . . . . . . . . . .    6
   Certificates  . . . . . . . . . . . . . . . . . . . . . . . . . . . .    6
   Class I . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   77
   Class II  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   77
   Class III . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   77
   Closing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    8
   Closing Agreement . . . . . . . . . . . . . . . . . . . . . . . . . .   18
   Closing Date  . . . . . . . . . . . . . . . . . . . . . . . . . . . .    8
   Code  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    1
   Company . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    1
   Confidentiality Agreement . . . . . . . . . . . . . . . . . . . . . .   66

   DAEC  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   41
   DGCL  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    3
   Disclosure Schedules  . . . . . . . . . . . . . . . . . . . . . . . .   72
   Dissenting Shares . . . . . . . . . . . . . . . . . . . . . . . . . .    5
   DOE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   14

   Effective Time  . . . . . . . . . . . . . . . . . . . . . . . . . . .    3
   Environmental Claim . . . . . . . . . . . . . . . . . . . . . . . . .   23
   Environmental Laws  . . . . . . . . . . . . . . . . . . . . . . . . .   23
   Environmental Permits . . . . . . . . . . . . . . . . . . . . . . . .   22
   ERISA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   19
   Exchange Act  . . . . . . . . . . . . . . . . . . . . . . . . . . . .   14
   Exchange Agent  . . . . . . . . . . . . . . . . . . . . . . . . . . .    5

   FERC  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   14
   Final Order . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   82

   GAAP  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    2
   Governmental Authority  . . . . . . . . . . . . . . . . . . . . . . .   13

   Hazardous Materials . . . . . . . . . . . . . . . . . . . . . . . .     24
   HSR Act . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   68

   IBCA  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      3
   Indemnified Liabilities . . . . . . . . . . . . . . . . . . . . . . .   70
   Indemnified Party . . . . . . . . . . . . . . . . . . . . . . . . . .   70
   Indemnified Parties . . . . . . . . . . . . . . . . . . . . . . . . .   70
   IES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    1
   IES Benefit Plans . . . . . . . . . . . . . . . . . . . . . . . . . .   35
   IES Common Stock  . . . . . . . . . . . . . . . . . . . . . . . . . .    3
   IES Disclosure Schedule . . . . . . . . . . . . . . . . . . . . . . .   27
   IES Directors . . . . . . . . . . . . . . . . . . . . . . . . . . . .   77
   IES Dissenting Shares . . . . . . . . . . . . . . . . . . . . . . . .    5
   IES Financial Statements  . . . . . . . . . . . . . . . . . . . . . .   32
   IES/Interstate Stock Option Agreement . . . . . . . . . . . . . . . .    1
   IES Joint Venture . . . . . . . . . . . . . . . . . . . . . . . . . .   28
   IES Material Adverse Effect . . . . . . . . . . . . . . . . . . . . .   27
   IES Merger  . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    2
   IES Preferred Stock . . . . . . . . . . . . . . . . . . . . . . . . .   28
   IES Ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    4
   IES Required Consents . . . . . . . . . . . . . . . . . . . . . . . .   30
   IES Required Statutory Approvals  . . . . . . . . . . . . . . . . . .   30
   IES Rights Agreement  . . . . . . . . . . . . . . . . . . . . . . . . . 41
   IES SEC Reports . . . . . . . . . . . . . . . . . . . . . . . . . . .   31
   IES Special Meeting . . . . . . . . . . . . . . . . . . . . . . . . .   68
   IES Stock Awards  . . . . . . . . . . . . . . . . . . . . . . . . . .   75
   IES Stock Option  . . . . . . . . . . . . . . . . . . . . . . . . . .   75
   IES Shareholders' Approval  . . . . . . . . . . . . . . . . . . . . .   39
   IES Subsidiary  . . . . . . . . . . . . . . . . . . . . . . . . . . .   28
   IES/WPL Stock Option Agreement  . . . . . . . . . . . . . . . . . . .    1
   Initial Termination Date  . . . . . . . . . . . . . . . . . . . . . .   87
   Interstate  . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    1
   Interstate Benefit Plans  . . . . . . . . . . . . . . . . . . . . . .   49
   Interstate Common Stock . . . . . . . . . . . . . . . . . . . . . . .    4
   Interstate Directors  . . . . . . . . . . . . . . . . . . . . . . .     78
   Interstate Disclosure Schedule  . . . . . . . . . . . . . . . . . .     41
   Interstate Dissenting Shares  . . . . . . . . . . . . . . . . . . . .    5
   Interstate Financial Statements . . . . . . . . . . . . . . . . . . .   46
   Interstate/IES Stock Option Agreement . . . . . . . . . . . . . . . .    1
   Interstate Joint Venture  . . . . . . . . . . . . . . . . . . . . . .   42
   Interstate Material Adverse Effect  . . . . . . . . . . . . . . . . .   41
   Interstate Merger . . . . . . . . . . . . . . . . . . . . . . . . . .    2
   Interstate Preferred Stock  . . . . . . . . . . . . . . . . . . . . .    4
   Interstate Ratio  . . . . . . . . . . . . . . . . . . . . . . . . . .    4
   Interstate Required Consents  . . . . . . . . . . . . . . . . . . . .   44
   Interstate Required Statutory Approval  . . . . . . . . . . . . . . .   44
   Interstate SEC Reports  . . . . . . . . . . . . . . . . . . . . . . .   46
   Interstate Shareholders' Approval . . . . . . . . . . . . . . . . . .   54
   Interstate Special Meeting  . . . . . . . . . . . . . . . . . . . . .   69
   Interstate Subsidiary . . . . . . . . . . . . . . . . . . . . . . . .   42
   Interstate/WPL Stock Option Agreement . . . . . . . . . . . . . . . .    1
   IRS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   19

   Joint Proxy/Registration Statement  . . . . . . . . . . . . . . . . .   66
   Joint Venture . . . . . . . . . . . . . . . . . . . . . . . . . . . .   10

   Kewaunee  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
   Knowledge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    3

   Merger  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    2
   Merrill . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     26
   Morgan  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   40

   Nonregulated Company  . . . . . . . . . . . . . . . . . . . . . . . .   80
   Non-Target Party  . . . . . . . . . . . . . . . . . . . . . . . . . .   94
   NRC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   14
   NYSE  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    7

   Payment Date  . . . . . . . . . . . . . . . . . . . . . . . . . . . .   57
   Participation Percentage  . . . . . . . . . . . . . . . . . . . . . .   95
   PBGC  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   19
   Permits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   13
   Plan of Merger  . . . . . . . . . . . . . . . . . . . . . . . . . . .    3
   Power Act . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   14
   Proxy Statement . . . . . . . . . . . . . . . . . . . . . . . . . . .   16

   Registration Statement  . . . . . . . . . . . . . . . . . . . . . . .   16
   Release . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   24
   Representatives . . . . . . . . . . . . . . . . . . . . . . . . . . .   66

   Salomon . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   55
   SEC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    2
   Second Target Party . . . . . . . . . . . . . . . . . . . . . . . . .   94
   Securities Act  . . . . . . . . . . . . . . . . . . . . . . . . . . .   14
   Stock Option Agreements . . . . . . . . . . . . . . . . . . . . . . .    1
   Stock Plans . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   76
   Subsidiary  . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   10

   Target Party  . . . . . . . . . . . . . . . . . . . . . . . . . . . .   96
   Tax Return  . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   18
   Tax Ruling  . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   18
   Taxes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   18
   Three-Year Period . . . . . . . . . . . . . . . . . . . . . . . . . .  100
   Transition Team . . . . . . . . . . . . . . . . . . . . . . . . . . .   64

   Utilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   28
   Utilities Common Stock  . . . . . . . . . . . . . . . . . . . . . . .   28
   Utilities Preferred Stock . . . . . . . . . . . . . . . . . . . . . .   28

   Violation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   12

   WBCL  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    3
   WP&LC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   10
   WP&LC Common Stock  . . . . . . . . . . . . . . . . . . . . . . . . .   10
   WP&LC Preferred Stock . . . . . . . . . . . . . . . . . . . . . . . .   10
   WPL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    1
   WPL Benefit Plans . . . . . . . . . . . . . . . . . . . . . . . . . .   19
   WPL Common Stock  . . . . . . . . . . . . . . . . . . . . . . . . . .    4
   WPL Directors . . . . . . . . . . . . . . . . . . . . . . . . . . . .   78
   WPL Disclosure Schedule . . . . . . . . . . . . . . . . . . . . . . .    8
   WPL Financial Statements  . . . . . . . . . . . . . . . . . . . . . .   15
   WPL/IES Stock Option Agreement  . . . . . . . . . . . . . . . . . . .    1
   WPL/Interstate Stock Option Agreement . . . . . . . . . . . . . . . .    1
   WPL Joint Venture . . . . . . . . . . . . . . . . . . . . . . . . . .   10
   WPL Material Adverse Effect . . . . . . . . . . . . . . . . . . . . .    9
   WPL Rights  . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    4
   WPL Rights Agreement  . . . . . . . . . . . . . . . . . . . . . . . .    4
   WPL Required Consents . . . . . . . . . . . . . . . . . . . . . . . .   12
   WPL Required Statutory Approvals  . . . . . . . . . . . . . . . . . .   13
   WPL SEC Reports . . . . . . . . . . . . . . . . . . . . . . . . . . .   14
   WPL Shareholders' Approval  . . . . . . . . . . . . . . . . . . . . .   25
   WPL Special Meeting . . . . . . . . . . . . . . . . . . . . . . . .     69
   WPL Subsidiary  . . . . . . . . . . . . . . . . . . . . . . . . . . .   10
   WPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

   <PAGE>

             THIS AGREEMENT AND PLAN OF MERGER, dated as of November 10, 1995
   (this "Agreement"), by and among WPL Holdings, Inc., a holding company
   incorporated under the laws of the State of Wisconsin ("WPL"), IES
   Industries Inc., a holding company incorporated under the laws of the
   State of Iowa ("IES"), Interstate Power Company, an operating public
   utility incorporated under the laws of the State of Delaware
   ("Interstate") and AMW Acquisition, Inc., a wholly-owned subsidiary of WPL
   incorporated under the laws of the State of Delaware ("AMW", and together
   with WPL, IES and Interstate, after the Effective Time (as hereinafter
   defined), the "Company"),

                              W I T N E S S E T H:

             WHEREAS, WPL, IES and Interstate have determined that it would
   be in their respective best interests and in the interests of their
   respective shareholders to effect the transactions contemplated by this
   Agreement;

             WHEREAS, in furtherance thereof, the respective Boards of
   Directors of WPL, IES, Interstate and AMW have approved this Agreement and
   the Merger (as defined in Section 1.1 below) on the terms and conditions
   set forth in this Agreement;

             WHEREAS, the Board of Directors of WPL has approved and WPL has
   executed agreements with IES in the form of Exhibit A (the "WPL/IES Stock
   Option Agreement"), and Interstate in the form of Exhibit B (the
   "WPL/Interstate Stock Option Agreement"), the Board of Directors of IES
   has approved and IES has executed agreements with WPL in the form of
   Exhibit C (the "IES/WPL Stock Option Agreement"), and Interstate in the
   form of Exhibit D (the "IES/Interstate Stock Option Agreement"), and the
   Board of Directors of Interstate has approved and Interstate has executed
   agreements with WPL in the form of Exhibit E (the "Interstate/WPL Stock
   Option Agreement") and IES in the form of Exhibit F (the "Interstate/IES
   Stock Option Agreement") (collectively, the "Stock Option Agreements")
   whereby each of WPL, IES and Interstate, respectively, has granted to the
   others an option to purchase shares of its common stock on the terms and
   conditions provided in such agreements;

             WHEREAS, for Federal income tax purposes, it is intended that
   the transactions contemplated herein will be reorganizations described in
   Section 368(a) of the Internal Revenue Code of 1986, as amended (the
   "Code"), and the regulations thereunder, and that the parties hereto and
   their respective shareholders will recognize no gain or loss for Federal
   income tax purposes as a result of the consummation of the Merger;

             WHEREAS, for accounting purposes, it is intended that the Merger
   will be accounted for as a pooling of interests in accordance with
   generally accepted accounting principles applied on a consistent basis
   ("GAAP") and applicable regulations of the Securities and Exchange
   Commission (the "SEC");

             NOW, THEREFORE, in consideration of the premises and the
   representations, warranties, covenants and agreements contained herein,
   the parties hereto, intending to be legally bound hereby, agree as
   follows:


                                    ARTICLE I

                                   THE MERGER

             Section 1.1  The Merger.  Upon the terms and subject to the
   conditions of this Agreement:  

             (a)  at the Effective Time:

                  (i)  IES shall be merged with and into WPL (the "IES
        Merger") in accordance with the laws of the States of Wisconsin and
        Iowa;

                  (ii)  AMW shall be merged with and into Interstate (the
        "Interstate Merger") in accordance with the laws of the State of
        Delaware;

                  (iii)  The IES Merger, together with the Interstate Merger,
        are collectively referred to herein as the "Merger." 

             (b)  WPL shall be the surviving corporation of the IES Merger,
   and Interstate shall be the surviving corporation of the Interstate
   Merger, and each shall continue its respective corporate existence under
   the laws of the States of Wisconsin and Delaware, respectively; and

             (c)  the effects and the consequences of the Merger shall be as
   set forth in Section 1.2.

             Section 1.2  Effects of the Merger.  At the Effective Time, 

             (a)  the surviving corporation of the IES Merger shall change
   its name to Interstate Energy Corporation,

             (b)  the Restated Articles of Incorporation of WPL, as in effect
   immediately prior to the Effective Time, except as set forth in Section
   1.2(a) above, shall be the Restated Articles of Incorporation of WPL as
   the surviving corporation in the IES Merger until thereafter amended, 

             (c)  the By-laws of WPL, as in effect immediately prior to the
   Effective Time, shall be the By-laws of WPL as the surviving corporation
   in the IES Merger until thereafter amended,

             (d)  the Restated Certificate of Incorporation of Interstate, as
   in effect immediately prior to the Effective Time, shall be the Restated
   Certificate of Incorporation of Interstate as the surviving corporation in
   the Interstate Merger until thereafter amended, and

             (e)  the By-laws of Interstate, as in effect immediately prior
   to the Effective Time, shall be the By-laws of Interstate as the surviving
   corporation in the Interstate Merger until thereafter amended.

   Subject to the foregoing, the additional effects of the Merger shall be as
   provided in the applicable provisions of the Wisconsin Business
   Corporation Law (the "WBCL"), the Iowa Business Corporation Act (the
   "IBCA") and the Delaware General Corporation Law (the "DGCL").

             Section 1.3  Effective Time of the Merger.  On the Closing Date
   (as hereinafter defined), articles and certificates of merger together, in
   the case of the IES Merger, with a Plan of Merger in substantially the
   form attached hereto as Exhibit 1.3, which Plan of Merger is incorporated
   by reference herein and deemed a part hereof (the "Plan of Merger"),
   complying with the requirements of the WBCL, the IBCA and the DGCL, shall
   be executed by WPL, IES, Interstate and AMW and shall be filed by WPL and
   Interstate, as appropriate, with the Secretary of State of the State of
   Wisconsin pursuant to the WBCL and the Secretary of State of the State of
   Iowa pursuant to the IBCA, in the case of the IES Merger, and the
   Secretary of State of the State of Delaware pursuant to the DGCL, in the
   case of the Interstate Merger.  The Merger shall become effective on the
   later of the times (the "Effective Time") specified in the appropriate
   articles and certificates of merger filed with respect to the IES Merger
   and the Interstate Merger, respectively.


                                   ARTICLE II

                               TREATMENT OF SHARES

             Section 2.1  Effect of the Merger on Capital Stock.   At the
   Effective Time, by virtue of the Merger and without any action on the part
   of any holder of any capital stock of WPL, IES, Interstate or AMW:

             (a)  Cancellation of Certain Common Stock. 

                  (i)  Each share of Common Stock, no par value, of IES (the
        "IES Common Stock") that is owned by IES, WPL or Interstate or any of
        their respective Subsidiaries (as hereinafter defined) shall be
        canceled and shall cease to exist, and 

                 (ii)  each share of Common Stock, par value $3.50 per share,
        of Interstate (the "Interstate Common Stock") that is owned by IES,
        WPL or Interstate or any of their respective Subsidiaries shall be
        canceled and shall cease to exist.

             (b)  Conversion of Certain Common Stock.  

                  (i)  Each issued and outstanding share of IES Common Stock
        (other than shares canceled pursuant to Section 2.1(a)(i) and IES
        Dissenting Shares (as hereinafter defined)) shall be converted into
        the right to receive 0.98 (the "IES Ratio") duly authorized, validly
        issued, fully paid and nonassessable (except as otherwise provided in
        Section 180.0622(2)(b) of the WBCL) shares of Common Stock, par value
        $.01 per share, of WPL ("WPL Common Stock"), including, if
        applicable, associated rights (the "WPL Rights") to purchase shares
        of WPL Common Stock pursuant to the terms of that certain Rights
        Agreement between WPL and Morgan Shareholder Services Trust Company,
        as Rights Agent thereunder, dated as of February 22, 1989 (the "WPL
        Rights Agreement").  Until the Distribution Date (as defined in the
        WPL Rights Agreement) all references in this Agreement to the WPL
        Common Stock shall be deemed to include the associated WPL Rights.

                 (ii)  Each issued and outstanding share of Interstate Common
        Stock (other than shares canceled pursuant to Section 2.1(a)(ii))
        shall be converted into the right to receive 1.11 (the "Interstate
        Ratio") duly authorized, validly issued, fully paid and nonassessable
        (except as otherwise provided in Section 180.0622(2)(b) of the WBCL)
        shares of WPL Common Stock. 

                (iii)  Upon such conversions and except as otherwise provided
        in Section 2.2, all such shares of IES Common Stock and Interstate
        Common Stock shall be canceled and cease to exist, and each holder of
        a certificate formerly representing any such shares of IES Common
        Stock or Interstate Common Stock shall cease to have rights with
        respect thereto, except the right to receive the shares of WPL Common
        Stock to be issued in consideration therefor upon the surrender of
        such certificate in accordance with Section 2.3 and any cash in lieu
        of fractional shares of WPL Common Stock.

             (c)  No Change in Interstate Preferred Stock.  Each issued and
   outstanding share of Preferred Stock, $50 par value, of Interstate (the
   "Interstate Preferred Stock") shall be unchanged as a result of the
   Interstate Merger and shall remain outstanding thereafter.

             (d)  Conversion of AMW Common Stock.  All of the shares of
   Common Stock, par value $0.01 per share, of AMW (the "AMW Common Stock")
   issued and outstanding immediately prior to the Effective Time shall be
   converted into that number of shares of Interstate Common Stock (as the
   surviving corporation in the Interstate Merger) which shall be equivalent
   to the aggregate number of shares of Interstate Common Stock (exclusive of
   the shares canceled pursuant to Section 2.1(a)(ii)) issued and outstanding
   immediately prior to the Effective Time.  From and after the Effective
   Time, each outstanding certificate theretofore representing shares of AMW
   Common Stock shall be deemed for all purposes to evidence ownership of and
   to represent the number of shares of Interstate Common Stock into which
   such shares of AMW Common Stock shall have been converted.

             Section 2.2   Dissenting Shares.  

             (a)  Shares of IES Common Stock held by any holder entitled to
   relief as a dissenting shareholder under Section 490.1302 of the IBCA (the
   "IES Dissenting Shares") shall not be converted into the right to receive
   WPL Common Stock in the IES Merger, but shall be canceled and converted
   into such consideration as may be due with respect to such shares pursuant
   to the applicable provisions of Sections 490.1320 through 490.1330 of the
   IBCA, unless and until the right of such holder to receive fair cash value
   for such Dissenting Shares (as hereinafter defined) terminates in
   accordance with Sections 490.1320 through 490.1330 of the IBCA.  If such
   right is terminated otherwise than by the purchase of such shares by WPL,
   then such shares shall cease to be Dissenting Shares and shall represent
   the right to receive WPL Common Stock, as provided in Section 2.1(b)(i).

             (b)  Shares of Interstate Preferred Stock held by any holder
   entitled to relief as a dissenting shareholder under Section 262 of the
   DGCL (the "Interstate Dissenting Shares," and, collectively with the IES
   Dissenting Shares, the "Dissenting Shares") shall be canceled and
   converted into such consideration as may be due with respect to such
   shares pursuant to the applicable provisions of Section 262 of the DGCL. 
   If such right is terminated otherwise than by the purchase of such shares
   by WPL, then such shares shall cease to be Dissenting Shares and shall
   remain outstanding.

             Section 2.3  Issuance of New Certificates.

             (a)  Deposit with Exchange Agent.  As soon as practicable after
   the Effective Time, WPL shall deposit with such bank, trust company or
   other appropriate entity mutually agreeable to WPL, IES and Interstate
   (the "Exchange Agent"), certificates representing shares of WPL Common
   Stock required to effect the issuances referred to in Section 2.1,
   together with cash payable in respect of fractional shares pursuant to
   Section 2.3(d).

             (b)  Issuance Procedures.  

                  (i)  As soon as practicable after the Effective Time, the
        Exchange Agent shall mail to each holder of record of a certificate
        or certificates (the "Certificates") which immediately prior to the
        Effective Time represented outstanding shares of IES Common Stock or
        Interstate Common Stock, as the case may be (collectively, the
        "Canceled Common Shares"), that were canceled and became instead the
        right to receive shares of WPL Common Stock pursuant to
        Section 2.1(b) and the Plan of Merger, (A) a letter of transmittal
        (which shall specify that delivery shall be effected, and risk of
        loss and title to the Certificates shall pass, only upon actual
        delivery of the Certificates to the Exchange Agent), and (B)
        instructions for use in effecting the surrender of the Certificates
        in exchange for certificates representing WPL Common Stock. 

                 (ii)  Upon surrender of a Certificate to the Exchange Agent
        for cancellation (or to such other agent or agents as may be
        appointed by agreement of WPL, IES and Interstate), together with a
        duly executed letter of transmittal and such other documents as the
        Exchange Agent shall require, the holder of such Certificate shall be
        entitled to receive a certificate representing that number of whole
        shares of WPL Common Stock which such holder has the right to receive
        pursuant to the provisions of this Article II and the Plan of Merger. 
        In the event of a transfer of ownership of Canceled Common Shares
        which is not registered in the transfer records of IES or Interstate,
        as the case may be, a certificate representing the proper number of
        shares of WPL Common Stock may be issued to a transferee if the
        Certificate representing such Canceled Common Shares is presented to
        the Exchange Agent, accompanied by all documents required to evidence
        and effect such transfer and by evidence satisfactory to the Exchange
        Agent that any applicable stock transfer taxes have been paid.

                (iii)  Until surrendered as contemplated by this Section 2.3,
        each Certificate shall be deemed at any time after the Effective Time
        to represent only the right to receive upon such surrender the
        certificate representing WPL Common Stock and cash in lieu of any
        fractional shares of WPL Common Stock contemplated by this
        Section 2.3.

             (c)  Distributions with Respect to Unsurrendered Shares.  

                  (i)  No dividends or other distributions declared or made
        after the Effective Time with respect to shares of WPL Common Stock
        with a record date after the Effective Time shall be paid to the
        holder of any unsurrendered Certificate with respect to the shares of
        WPL Common Stock represented thereby and no cash payment in lieu of
        fractional shares shall be paid to any such holder pursuant to
        Section 2.3(d) until the holder of record of such Certificate (or a
        transferee as described in Section 2.3(b)) shall surrender such
        Certificate. 

                 (ii)  Subject to the effect of unclaimed property, escheat
        and other applicable laws, following surrender of any such
        Certificate, there shall be paid to the record holders (or a
        transferee as described in Section 2.3(b)) of the certificates
        representing whole shares of WPL Common Stock issued in consideration
        therefor, without interest, 

                       (A)  at the time of such surrender, the amount of cash
             in lieu of a fractional share of WPL Common Stock to which such
             holder (or transferee) is entitled pursuant to Section 2.3(d)
             and the amount of dividends or other distributions with a record
             date after the Effective Time which theretofore became payable
             but which were not paid by reason of Section 2.3(c)(i) with
             respect to such whole shares of WPL Common Stock, and 

                       (B)  at the appropriate payment date, the amount of
             dividends or other distributions with a record date after the
             Effective Time but prior to surrender and a payment date
             subsequent to surrender payable with respect to such whole
             shares of WPL Common Stock.

             (d)  No Fractional Securities.  

                  (i)  Notwithstanding any other provision of this Agreement,
        no certificates or scrip representing fractional shares of WPL Common
        Stock shall be issued upon the surrender for exchange of Certificates
        and such fractional shares shall not entitle the owner thereof to
        vote as, or to any other rights of, a holder of WPL Common Stock. 

                 (ii)  A holder of IES Common Stock or Interstate Common
        Stock who would otherwise have been entitled to receive a fractional
        share of WPL Common Stock shall be entitled to receive a cash payment
        in lieu of such fractional share in an amount equal to the product
        (rounded to the nearest cent) of such fraction (rounded to the
        nearest thousandth) multiplied by the average of the last reported
        sales price, regular way, per share of WPL Common Stock, on the New
        York Stock Exchange ("NYSE") Composite Tape for the ten business days
        prior to and including the last business day prior to the Effective
        Time on which WPL Common Stock was traded on the NYSE, without any
        interest thereon.

             (e)  Closing of Common Stock Transfer Books.  From and after the
   Effective Time, the stock transfer books of IES and Interstate with
   respect to shares of IES Common Stock and Interstate Common Stock issued
   and outstanding prior to the Effective Time shall be closed and no
   transfer of any such shares shall thereafter be made.  If, after the
   Effective Time, Certificates are presented to WPL or Interstate, they
   shall be canceled and exchanged for certificates representing the
   appropriate number of shares of WPL Common Stock as provided in this
   Section 2.3.

             (f)  Termination of Exchange Agent.  Any certificates
   representing WPL Common Stock deposited with the Exchange Agent pursuant
   to Section 2.3(a) and not exchanged within one year after the Effective
   Time pursuant to this Section 2.3 shall be returned by the Exchange Agent
   to the Company, which shall thereafter act as Exchange Agent.  All funds
   held by the Exchange Agent for payment to the holders of unsurrendered
   Certificates and unclaimed at the end of one year from the Effective Time
   shall be returned to the Company, after which time any holder of
   unsurrendered Certificates shall look as a general creditor only to the
   Company for payment of such funds to which such holder may be due, subject
   to applicable law.  The Company shall not be liable to any person for such
   shares or funds delivered to a public official pursuant to any applicable
   abandoned property, escheat or similar law.


                                   ARTICLE III

                                   THE CLOSING

             Section 3.1  The Closing.  The closing of the Merger (the
   "Closing") shall take place at the offices of Foley & Lardner, 777 East
   Wisconsin Avenue, Milwaukee, Wisconsin, at 10:00 a.m. (Milwaukee,
   Wisconsin local time) on the second business day immediately following the
   date on which the last of the conditions set forth in Article IX hereof is
   fulfilled or waived, or at such other time and date and place as WPL, IES
   and Interstate shall mutually agree (the "Closing Date").


                                   ARTICLE IV

                      REPRESENTATIONS AND WARRANTIES OF WPL

             WPL represents and warrants to IES and Interstate as follows:

             Section 4.1  Organization and Qualification.   Except as set
   forth in Section 4.1 of the Disclosure Schedule to this Agreement prepared
   and delivered by WPL (the "WPL Disclosure Schedule"), each of WPL and the
   WPL Subsidiaries (as hereinafter defined) is a corporation duly organized,
   validly existing and in good standing (to the extent applicable) under the
   laws of its respective jurisdiction of incorporation or organization, has
   all requisite corporate power and authority, and has been duly authorized
   by all necessary approvals and orders to own, lease and operate its assets
   and properties to the extent owned, leased and operated and to carry on
   its business as it is now being conducted and is duly qualified and in
   good standing (to the extent applicable) to do business in each respective
   jurisdiction in which the nature of its business or the ownership or
   leasing of its assets and properties makes such qualification necessary,
   other than in such jurisdictions where the failure to be so qualified and
   in good standing would not, when taken together with all other such
   failures, have a material adverse effect on the business, operations,
   properties, assets, condition (financial or otherwise), or the results of
   operations of WPL and the WPL Subsidiaries taken as a whole or on the
   consummation of the transactions contemplated hereby (a "WPL Material
   Adverse Effect"). 

             Section 4.2  Subsidiaries. 

             (a)  Section 4.2 of the WPL Disclosure Schedule sets forth a
   description as of the date hereof, of all WPL Subsidiaries and WPL Joint
   Ventures, including (i) the name of each such entity and WPL's interest
   therein, and (ii) a brief description of the principal line or lines of
   business conducted by each such entity.  

             (b)  Except as set forth in Section 4.2 of the WPL Disclosure
   Schedule, none of the WPL Subsidiaries or WPL Joint Ventures is a "public
   utility company," a "holding company," a "subsidiary company" or an
   "affiliate" of any public utility company within the meaning of
   Section 2(a)(5), 2(a)(7), 2(a)(8) or 2(a)(11) of the Public Utility
   Holding Company Act of 1935, as amended (the "1935 Act"), respectively.  

             (c)  Except as set forth in Section 4.2 of the WPL Disclosure
   Schedule, all of the issued and outstanding shares of capital stock of
   each WPL Subsidiary are duly authorized, validly issued, fully paid,
   nonassessable (except as otherwise provided in Section 180.0622(2)(b) of
   the WBCL) and free of preemptive rights, and are owned, directly or
   indirectly, by WPL free and clear of any liens, claims, encumbrances,
   security interests, equities, charges and options of any nature
   whatsoever, and there are no outstanding subscriptions, options, calls,
   contracts, voting trusts, proxies or other commitments, understandings,
   restrictions, arrangements, rights or warrants, including any right of
   conversion or exchange under any outstanding security, instrument or other
   agreement, obligating any such WPL Subsidiary to issue, deliver or sell,
   or cause to be issued, delivered or sold, additional shares of its capital
   stock, or granting to any person other than WPL or a WPL Subsidiary any
   right to participate in its dividends or earnings or obligating it to
   grant, extend or enter into any such agreement or commitment.

             (d)  As used in this Agreement,

                  (i)  "Subsidiary" of a person shall mean any corporation or
        other entity (including partnerships and other business associations)
        of which at least a majority of the outstanding capital stock or
        other voting securities having voting power under ordinary
        circumstances to elect directors or similar members of the governing
        body of such corporation or entity shall at the time be held,
        directly or indirectly, by such person or entity;

                 (ii)  "WPL Subsidiary" shall mean any Subsidiary of WPL;  

                (iii)  "Joint Venture" of a person or entity shall mean any
        corporation or other entity (including partnerships and other
        business associations) that is not a Subsidiary of such person or
        entity, in which such person  or one or more of its Subsidiaries owns
        directly or indirectly an equity interest, other than equity
        interests held for passive investment purposes which are less than 5%
        of each class of the outstanding voting securities or equity
        interests of any such entity; and 

                 (iv)  "WPL Joint Venture" shall mean any Joint Venture of
        WPL or any WPL Subsidiary.  

             Section 4.3  Capitalization.

             (a)  The authorized capital stock of WPL consists of 100,000,000
   shares of WPL Common Stock of which 30,773,588 shares were issued and
   outstanding as of September 30, 1995;

             (b)  The authorized capital stock of Wisconsin Power and Light
   Company ("WP&LC"), a Wisconsin corporation and a Subsidiary of WPL,
   consists of 

                  (A)  18,000,000 shares of Common Stock, $5 par value, of
        which 13,236,601 shares were issued and outstanding as of September
        30, 1995 (the "WP&LC Common Stock"), and

                  (B)  3,750,000 shares of Preferred Stock without mandatory
        redemption, (4.50% series, 4.80% series, 4.96% series, 4.40% series,
        4.76% series, 6.50% series and 6.20% series) of which 1,049,225 were
        issued and outstanding as of September 30, 1995 (the classes set
        forth in this clause (B) being referred to collectively as, the
        "WP&LC Preferred Stock").

             (c)  All of the issued and outstanding shares of WPL Common
   Stock, WP&LC Common Stock and WP&LC Preferred Stock are, and any shares of
   WPL Common Stock issued pursuant to the Merger and the WPL/Interstate and
   WPL/IES Stock Option Agreements will be duly authorized, validly issued,
   fully paid, nonassessable (except as otherwise provided in Section
   180.0622(2)(b) of the WBCL) and free of preemptive rights.  

             (d)  Except as set forth in Section 4.3 of the WPL Disclosure
   Schedule, as of the date hereof, there are no outstanding subscriptions,
   options, calls, contracts, voting trusts, proxies or other commitments,
   understandings, restrictions, arrangements, rights or warrants, including
   any right of conversion or exchange under any outstanding security,
   instrument or other agreement, obligating WPL or any of the WPL
   Subsidiaries to issue, deliver or sell, or cause to be issued, delivered
   or sold, additional shares of the capital stock of WPL, or obligating WPL
   to grant, extend or enter into any such agreement or commitment, other
   than under the WPL/IES and WPL/Interstate Stock Option Agreements.

             Section 4.4  Authority; Non-contravention; Statutory Approvals;
   Compliance.

             (a)  Authority.

                  (i)  WPL has all requisite corporate power and authority to
        enter into this Agreement and the WPL/IES and WPL/Interstate Stock
        Option Agreements, and, subject to the applicable WPL Shareholders'
        Approval (as hereinafter defined) and the applicable WPL Required
        Statutory Approvals (as hereinafter defined), to consummate the
        transactions contemplated hereby or thereby.  The execution and
        delivery of this Agreement and the WPL/IES and WPL/Interstate Stock
        Option Agreements and the consummation by WPL of the transactions
        contemplated hereby and thereby have been duly authorized by all
        necessary corporate action on the part of WPL, subject to obtaining
        the applicable WPL Shareholders' Approval.  Each of this Agreement
        and the WPL/IES and WPL/Interstate Stock Option Agreements has been
        duly and validly executed and delivered by WPL and, assuming the due
        authorization, execution and delivery hereof and thereof by the other
        signatories hereto and thereto, constitutes the valid and binding
        obligation of WPL enforceable against it in accordance with its
        terms, except as may be limited by applicable bankruptcy, insolvency,
        reorganization or other similar laws affecting the enforcement of
        creditors' rights generally, and except that the availability of
        equitable remedies, including specific performance, may be subject to
        the discretion of any court before which any proceeding therefor may
        be brought.

                 (ii)  AMW has all requisite power and authority to enter
        into this Agreement and to consummate the transactions contemplated
        hereby.  This Agreement has been duly and validly executed and
        delivered by AMW and, assuming the due authorization, execution and
        delivery hereof by the other signatories hereto, constitutes the
        valid and binding obligation of AMW enforceable against it in
        accordance with its terms, except as may be limited by applicable
        bankruptcy, insolvency, reorganization, or other similar laws
        affecting the enforcement of creditors' rights generally, and except
        that the availability of equitable remedies, including specific
        performance, may be subject to the discretion of any court before
        which any proceeding may be brought.

             (b)  Non-contravention.  Except as set forth in
   Section 4.4(b) of the WPL Disclosure Schedule, the execution and delivery
   of this Agreement and the WPL/IES and the WPL/Interstate Stock Option
   Agreements by WPL do not, and the consummation of the transactions
   contemplated hereby or thereby will not violate, conflict with, or result
   in a breach of any provision of, or constitute a default (with or without
   notice or lapse of time or both) under, or result in the termination or
   modification of, or accelerate the performance required by, or result in a
   right of termination, cancellation, or acceleration of any obligation or
   the loss of a benefit under, or result in the creation of any lien,
   security interest, charge or encumbrance upon any of the properties or
   assets of WPL or any of the WPL Subsidiaries or WPL Joint Ventures (any
   such violation, conflict, breach, default, termination, modification,
   cancellation, acceleration, loss or creation, a "Violation" with respect
   to WPL, such term when used in Articles V and VI having a correlative
   meaning with respect to IES and Interstate, respectively) pursuant to any
   provisions of:

                  (i)  the Articles of Incorporation, By-laws or similar
        governing documents of WPL or any of the WPL Subsidiaries or WPL
        Joint Ventures;

                 (ii)  subject to obtaining the WPL Required Statutory
        Approvals and the receipt of the WPL Shareholders' Approval, any
        statute, law, ordinance, rule, regulation, judgment, decree, order,
        injunction, writ, permit or license of any Governmental Authority (as
        hereinafter defined) applicable to WPL or any of the WPL Subsidiaries
        or WPL Joint Ventures or any of their respective properties or
        assets; or

                (iii)  subject to obtaining the third-party consents set
        forth in Section 4.4(b) of the WPL Disclosure Schedule (the "WPL
        Required Consents") any note, bond, mortgage, indenture, deed of
        trust, license, franchise, permit, concession, contract, lease or
        other instrument, obligation or agreement of any kind to which WPL or
        any of the WPL Subsidiaries or WPL Joint Ventures is a party or by
        which it or any of its properties or assets may be bound or affected,

   excluding from the foregoing clauses (ii) and (iii) such violations which,
   in the aggregate do not, and insofar as reasonably can be foreseen, would
   not, have a WPL Material Adverse Effect.

             (c)  Statutory Approvals.  No declaration, filing or
   registration with, or notice to or authorization, consent or approval of,
   any court, Federal, state, local or foreign governmental or regulatory
   body (including a stock exchange or other self-regulatory body) or
   authority (each, a "Governmental Authority") is necessary for the
   execution and delivery of this Agreement or the WPL/IES and WPL/Interstate
   Stock Option Agreements by WPL or the consummation by WPL of the
   transactions contemplated hereby or thereby, except as described in
   Section 4.4(c) of the WPL Disclosure Schedule (the "WPL Required Statutory
   Approvals," it being understood that references in this Agreement to
   "obtaining" such WPL Required Statutory Approvals shall mean making such
   declarations, filings or registrations; giving such notices; obtaining
   such authorizations, consents or approvals; and having such waiting
   periods expire as are necessary to avoid a violation of law).

             (d)  Compliance. 

                  (i)  (A)  Except as set forth in Section 4.4(d),
        Section 4.10 or Section 4.11 of the WPL Disclosure Schedule, or as
        disclosed in the WPL SEC Reports (as hereinafter defined) filed prior
        to the date hereof, neither WPL nor any of the WPL Subsidiaries nor,
        to the knowledge of WPL, any WPL Joint Venture, is in violation of,
        is under investigation with respect to any violation of, or has been
        given notice or been charged with any violation of, any law, statute,
        order, rule, regulation, ordinance or judgment (including, without
        limitation, any applicable environmental law, ordinance or
        regulation) of any Governmental Authority, except for violations
        which, in the aggregate do not, and insofar as reasonably can be
        foreseen, would not, have a WPL Material Adverse Effect.

                       (B)  For purposes of this Agreement "knowledge" shall
        mean, with respect to any party hereto, the actual knowledge after
        due inquiry of principal executive officers of WPL, IES or
        Interstate, respectively set forth in Sections 4.4(d), 5.4(d) and
        6.4(d) of the WPL Disclosure Schedule, IES Disclosure Schedule (as
        hereinafter defined) and Interstate Disclosure Schedule (as
        hereinafter defined).

                 (ii)  Except as set forth in Section 4.4(d) or in
        Section 4.11 of the WPL Disclosure Schedule, WPL and the WPL
        Subsidiaries and the WPL Joint Ventures have all permits, licenses,
        franchises and other governmental authorizations, consents and
        approvals (collectively, the "Permits") necessary to conduct their
        businesses as presently conducted, except those the failure of which
        to obtain, in the aggregate do not, and insofar as reasonably can be
        foreseen, would not, have a WPL Material Adverse Effect. 

                (iii)  Except as set forth in Section 4.4(d) of the WPL
        Disclosure Schedule, each of WPL and the WPL Subsidiaries and WPL
        Joint Ventures is not in breach,  violation or default in the
        performance or observance of any term or provision of, and no event
        has occurred which, with lapse of time or action by a third party,
        could result in a default under,

                       (A)  its Articles of Incorporation or By-laws, or

                       (B)  any contract, commitment, agreement, indenture,
        mortgage, loan agreement, note, lease, bond, license, approval or
        other instrument to which it is a party or by which it is bound or to
        which any of its property is subject, except for breaches, violations
        or defaults which, in the aggregate do not, and insofar as reasonably
        can be foreseen, would not, have a WPL Material Adverse Effect.

             Section 4.5  Reports and Financial Statements.  

             (a)  The filings required to be made by WPL and the WPL
   Subsidiaries since January 1, 1992 under the Securities Act of 1933, as
   amended (the "Securities Act"), the Securities Exchange Act of 1934, as
   amended (the "Exchange Act"), the 1935 Act, the Federal Power Act (the
   "Power Act"), the Atomic Energy Act of 1954, as amended (the "Atomic
   Energy Act") and applicable state laws and regulations have been filed
   with the SEC, the Federal Energy Regulatory Commission (the "FERC"), the
   Nuclear Regulatory Commission (the "NRC"), the Department of Energy (the
   "DOE") or any appropriate state public utilities commission, as the case
   may be, including all forms, statements, reports, agreements (oral or
   written) and all documents, exhibits, amendments and supplements
   appertaining thereto, and complied, as of their respective dates, in all
   material respects with all applicable requirements of the appropriate
   statute and the rules and regulations thereunder.  

             (b)  WPL has made available to IES and Interstate a true and
   complete copy of each form, report, schedule, registration statement and
   definitive proxy statement filed by each of WPL and WP&LC with the SEC
   since January 1, 1992 (as such documents have since the time of their
   filing been amended or supplemented, the "WPL SEC Reports") and each other
   filing described in Section 4.5(a).  As of their respective dates, the WPL
   SEC Reports did not contain any 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, in light of the circumstances under which
   they were made, not misleading.

             (c)  The audited consolidated financial statements and unaudited
   interim financial statements of WPL and WP&LC, as the case may be,
   included in the WPL SEC Reports (collectively, the "WPL Financial
   Statements") have been prepared in accordance with GAAP (except as may be
   indicated therein or in the notes thereto and except with respect to
   unaudited statements as permitted by Form 10-Q under the Exchange Act) and
   fairly present in all material respects the financial position of WPL or
   WP&LC, as the case may be, as of the dates thereof and the results of its
   operations and cash flows for the periods then ended, subject, in the case
   of the unaudited interim financial statements, to normal, recurring audit
   adjustments.  

             (d)  True, accurate and complete copies of the Restated Articles
   of Incorporation and By-laws of WPL, as in effect on the date hereof, are
   included (or incorporated by reference) in the WPL SEC Reports.

             Section 4.6  Absence of Certain Changes or Events. Except as
   disclosed in the WPL SEC Reports filed prior to the date hereof or as set
   forth in Section 4.6 of the WPL Disclosure Schedule, since December 31,
   1994, WPL and each of the WPL Subsidiaries and the WPL Joint Ventures have
   conducted their businesses only in the ordinary course of their respective
   businesses consistent with past practice and there has not been, and no
   facts or conditions exist (other than facts or conditions of general
   applicability to electric utility companies in the region in which WPL,
   IES and Interstate operate) which, in the aggregate have, or insofar as
   reasonably can be foreseen, would have, a WPL Material Adverse Effect.

             Section 4.7  Litigation.  Except as disclosed in the WPL SEC
   Reports filed prior to the date hereof or as set forth in Section 4.7,
   Section 4.9 or Section 4.11 of the WPL Disclosure Schedule, 

             (a) there are no claims, suits, actions or proceedings pending
        or, to the knowledge of WPL, threatened, nor are there, to the
        knowledge of WPL, any investigations or reviews pending or threatened
        against, relating to or affecting WPL or any of the WPL Subsidiaries
        and, to the knowledge of WPL, the WPL Joint Ventures; 

             (b) there have not been any developments since December 31, 1994
        with respect to such disclosed claims, suits, actions, proceedings,
        investigations or reviews; and 

             (c) there are no judgments, decrees, injunctions, rules or
        orders of any court, governmental department, commission, agency,
        instrumentality or authority or any arbitrator applicable to WPL or
        any of the WPL Subsidiaries and, to the knowledge of WPL, the WPL
        Joint Ventures, 

   which, when taken together with any other nondisclosures of matters
   described in clauses (a), (b) and (c), have, or insofar as reasonably can
   be foreseen, would have, a WPL Material Adverse Effect.

             Section 4.8  Registration Statement and Proxy Statement.  

             (a)  None of the information supplied or to be supplied by or on
   behalf of WPL for inclusion or incorporation by reference in:

                  (i)  the registration statement on Form S-4 to be filed
        with the SEC by WPL in connection with the issuance of shares of WPL
        Common Stock in the Merger (the "Registration Statement") will, at
        the time the Registration Statement is filed with the SEC and at the
        time it becomes effective under the Securities Act, contain any
        untrue statement of a material fact or omit to state any material
        fact required to be stated therein or necessary to make the
        statements therein not misleading; and

                 (ii)  the joint proxy statement, in definitive form,
        relating to the meetings of WPL, IES and Interstate shareholders to
        be held in connection with the Merger (the "Proxy Statement") will,
        at the date(s) mailed to shareholders and at the times of the
        meetings of shareholders to be held in connection with the Merger,
        contain any untrue statement of a material fact or omit to state any
        material fact required to be stated therein or necessary in order to
        make the statements therein, in light of the circumstances under
        which they are made, not misleading.

             (b)  The Registration Statement and the Proxy Statement will
   comply as to form in all material respects with the provisions of the
   Securities Act and the Exchange Act, respectively, and the applicable
   rules and regulations thereunder.

             Section 4.9  Tax Matters.  Except as set forth in Section 4.9 of
   the WPL Disclosure Schedule:

             (a)  Filing of Timely Tax Returns.  WPL and each of the WPL
   Subsidiaries have filed (or there has been filed on its behalf) all Tax
   Returns (as hereinafter defined) required to be filed by each of them
   under applicable law.  All such Tax Returns were and are in all material
   respects true, complete and correct and filed on a timely basis.

             (b)  Payment of Taxes.  WPL and each of the WPL Subsidiaries
   have, within the time and in the manner prescribed by law, paid all Taxes
   (as hereinafter defined) that are currently due and payable except for
   those contested in good faith and for which adequate reserves have been
   taken.

             (c)  Tax Reserves.  WPL and the WPL Subsidiaries have
   established on their books and records reserves adequate to pay all Taxes
   and reserves for deferred income taxes in accordance with GAAP.

             (d)  Tax Liens.  There are no Tax liens upon the assets of WPL
   or any of the WPL Subsidiaries except liens for Taxes not yet due.

             (e)  Withholding Taxes.  WPL and each of the WPL Subsidiaries
   have complied in all material respects with the provisions of the Code
   relating to the withholding of Taxes, as well as similar provisions under
   any other laws, and have, within the time and in the manner prescribed by
   law, withheld from employee wages and paid over to the proper governmental
   authorities all amounts required.

             (f)  Extensions of Time for Filing Tax Returns.  Neither WPL nor
   any of the WPL Subsidiaries has requested any extension of time within
   which to file any Tax Return, which Tax Return has not since been timely
   filed.

             (g)  Waivers of Statute of Limitations.  Neither WPL nor any of
   the WPL Subsidiaries has executed any outstanding waivers or comparable
   consents regarding the application of the statute of limitations with
   respect to any Taxes or Tax Returns.

             (h)  Expiration of Statute of Limitations.  The statute of
   limitations for the assessment of all Taxes has expired for all applicable
   Tax Returns of WPL and each of the WPL Subsidiaries or those Tax Returns
   have been examined by the appropriate taxing authorities for all Tax
   periods ended before the date hereof, and no deficiency for any Taxes has
   been proposed, asserted or assessed against WPL or any of the WPL
   Subsidiaries that has not been resolved and paid in full.

             (i)  Audit, Administrative and Court Proceedings.  No audits or
   other administrative proceedings or court proceedings are presently
   pending with regard to any Taxes or Tax Returns of WPL or any of the WPL
   Subsidiaries.

             (j)  Powers of Attorney.  No power of attorney currently in
   force has been granted by WPL or any of the WPL Subsidiaries concerning
   any Tax matter.

             (k)  Tax Rulings.  Neither WPL nor any of the WPL Subsidiaries
   has received a Tax Ruling (as hereinafter defined) or entered into a
   Closing Agreement (as hereinafter defined) with any taxing authority that
   would have a continuing adverse effect after the Closing Date.

             (l)  Availability of Tax Returns.  WPL has made available to IES
   and Interstate complete and accurate copies covering the six years ended
   December 31, 1994 of (i) all Tax Returns, and any amendments thereto,
   filed by WPL or any of the WPL Subsidiaries, (ii) all audit reports
   received from any taxing authority relating to any Tax Return filed by WPL
   or any of the WPL Subsidiaries, and (iii) any Closing Agreements entered
   into by WPL or any of the WPL Subsidiaries with any taxing authority.

             (m)  Tax Sharing Agreements.  Neither WPL nor any WPL Subsidiary
   is a party to any agreement relating to allocating or sharing of Taxes.

             (n)  Code Section 280G.  Neither WPL nor any of the WPL
   Subsidiaries is a party to any agreement, contract, or arrangement that
   could result, on account of the transactions contemplated hereunder,
   separately or in the aggregate, in the payment of any "excess parachute
   payments" within the meaning of Section 280G of the Code.

             (o)  Liability for Others.  None of WPL or any of the WPL
   Subsidiaries has any liability for Taxes of any person other than WPL and
   the WPL Subsidiaries (i) under Treasury Regulations Section 1.1502-6 (or
   any similar provision of state, local or foreign law) as a transferee or
   successor, (ii) by contract, or (iii) otherwise.

             (p)  As used in this Agreement:

                  (i)  "Taxes" means any Federal, state, county, local or
        foreign taxes, charges, fees, levies, or other assessments, including
        all net income, gross income, sales and use, ad valorem, transfer,
        gains, profits, excise, franchise, real and personal property, gross
        receipts, capital stock, production, business and occupation,
        disability, employment, payroll, license, estimated, stamp, custom
        duties, severance or withholding taxes or charges imposed by any
        governmental entity, and includes any interest and penalties (civil
        or criminal) on or additions to any such taxes;

                 (ii)  "Tax Return" means a report, return or other
        information required to be supplied to a governmental entity with
        respect to Taxes including, where permitted or required, combined or
        consolidated returns for a group of entities;

                (iii)  "Tax Ruling" means a written ruling of a taxing
        authority relating to Taxes; and

                 (iv)  "Closing Agreement" means a written and legally
        binding agreement with a taxing authority relating to Taxes.

             Section 4.10  Employee Matters; ERISA.

             (a)  Benefit Plans.  Section 4.10(a) of the WPL Disclosure
   Schedule contains a true and complete list of each employee benefit plan,
   program or arrangement covering employees, former employees or directors
   of WPL and each of the WPL Subsidiaries or their beneficiaries, or
   providing benefits to such persons in respect of services provided to any
   such entity, including, but not limited to, employee benefit plans within
   the meaning of Section 3(3) of the Employee Retirement Income Security Act
   of 1974, as amended ("ERISA"), and any severance or change in control
   agreement (collectively, the "WPL Benefit Plans").  For the purposes of
   this Section 4.10 only, the term "WPL" shall be deemed to include the
   predecessors of such company.

             (b)  Contributions.  Except as set forth in Section 4.10(b) of
   the WPL Disclosure Schedule, all material contributions and other payments
   required to be made by WPL or any of the WPL Subsidiaries to any WPL
   Benefit Plan (or to any person pursuant to the terms thereof) have been
   made or the amount of such payment or contribution obligation has been
   reflected in the WPL Financial Statements.

             (c)  Qualification; Compliance.  Except as set forth in Section
   4.10(c) of the WPL Disclosure Schedule each of the WPL Benefit Plans
   intended to be "qualified" within the meaning of Section 401(a) of the
   Code has been determined by the Internal Revenue Service (the "IRS") to be
   so qualified, and, to the knowledge of WPL, no circumstances exist that
   are reasonably expected by WPL to result in the revocation of any such
   determination.  WPL is in compliance in all respects with, and each of the
   WPL Benefit Plans is and has been operated in all respects in compliance
   with, all applicable laws, rules and regulations governing each such plan,
   including, without limitation, ERISA and the Code, except for any
   violations that, in the aggregate do not, and insofar as reasonably can be
   foreseen, would not, give rise to a WPL Material Adverse Effect.  Each WPL
   Benefit Plan intended to provide for the deferral of income, the reduction
   of salary or other compensation, or to afford other income tax benefits,
   complies in all material respects with the requirements of the applicable
   provisions of the Code or other laws, rules and regulations required to
   provide such income tax benefits.

             (d)  Liabilities.  With respect to the WPL Benefit Plans,
   individually and in the aggregate, no event has occurred, and, to the
   knowledge of WPL, there does not now exist any condition or set of
   circumstances that could subject WPL or any of the WPL Subsidiaries to any
   liability arising under the Code, ERISA or any other applicable law
   (including, without limitation, any liability of any kind whatsoever,
   whether direct or indirect, contingent, inchoate or otherwise, to any such
   plan or the Pension Benefit Guaranty Corporation (the "PBGC")), or under
   any indemnity agreement to which WPL is subject, which liability,
   excluding liability for PBGC premiums, benefit claims and funding
   obligations payable in the ordinary course, has, or insofar as reasonably
   can be foreseen, would have, a WPL Material Adverse Effect.

             (e)  Welfare Plans.  Except as set forth in Section 4.10(e) of
   the WPL Disclosure Schedule, none of the WPL Benefit Plans that are
   "welfare plans" within the meaning of Section 3(1) of ERISA, provides for
   any benefits payable to or on behalf of any employee or director after
   termination of employment or service, as the case may be, other than
   elective continuation coverage required to be provided under Section 4980B
   of the Code or Part 6 of Title I of ERISA or coverage which expires at the
   end of the calendar month following such event.

             (f)  Documents made Available.  WPL has made available to IES
   and Interstate a true and correct copy of each collective bargaining
   agreement to which WPL or any of the WPL Subsidiaries is a party or under
   which WPL or any of the WPL Subsidiaries has obligations and, with respect
   to each WPL Benefit Plan, where applicable,

                  (i) such plan and summary plan description,

                 (ii) the most recent annual report filed with the IRS,

                (iii) each related trust agreement, insurance contract,
        service provider or investment management agreement (including all
        amendments to each such document),

                 (iv) the most recent determination of the IRS with respect
        to the qualified status of such WPL Benefit Plan, and

                  (v) the most recent actuarial report or valuation.

             (g)  Payments Resulting from Merger.  Except as set forth in
   Section 4.10(g) of the WPL Disclosure Schedule:  

                  (i)  The consummation or announcement of any transaction
        contemplated by this Agreement will not (either alone or upon the
        occurrence of any additional or further acts or events) result in any


                       (A)  payment (whether of severance pay or otherwise)
             becoming due from WPL or any of the WPL Subsidiaries to any
             officer, employee, former employee or director thereof or to the
             trustee under any "rabbi trust" or similar arrangement that
             would not have been paid without regard to such consummation or
             announcement, or 

                       (B)  benefit under any WPL Benefit Plan being
             established or becoming accelerated, vested or payable; and

                 (ii)  neither WPL nor any of the WPL Subsidiaries is a party
        to

                       (A) any management, employment, deferred compensation,
             severance (including any payment, right or benefit resulting
             from a change in control), bonus or other contract for personal
             services with any officer, director or employee,

                       (B) any consulting contract with any person who prior
             to entering into such contract was a director or officer of WPL,
             or

                       (C) any material plan, agreement, arrangement or
             understanding similar to any of the foregoing.

             (h)  Labor Agreements.  Except as set forth in Section 4.10(h)
   of the WPL Disclosure Schedule, as of the date hereof, neither WPL nor any
   of the WPL Subsidiaries is a party to any collective bargaining agreement
   or other labor agreement with any union or labor organization.  To the
   knowledge of WPL, as of the date hereof, there is no current union
   representation question involving employees of WPL or any of the WPL
   Subsidiaries, nor does WPL know of any activity or proceeding of any labor
   organization (or representative thereof) or employee group to organize any
   such employees.  Except as disclosed in the WPL SEC Reports filed prior to
   the date hereof or in Section 4.10(h) of the WPL Disclosure Schedule, 

                  (i) there is no material unfair labor practice, employment
        discrimination or other complaint against WPL or any of the WPL
        Subsidiaries pending, or to the knowledge of WPL, threatened,

                 (ii)  there is no strike, lockout or material dispute,
        slowdown or work stoppage pending, or to the knowledge of WPL,
        threatened, against or involving WPL or any of the WPL Subsidiaries,
        and 

                (iii)  there is no material proceeding, claim, suit, action
        or governmental investigation pending or, to the knowledge of WPL,
        threatened, in respect of which any director, officer, employee or
        agent of WPL or any of the WPL Subsidiaries is or may be entitled to
        claim indemnification from WPL or such WPL Subsidiary pursuant to
        their respective Articles of Incorporation or By-laws.

             Section 4.11  Environmental Protection.  Except as set forth in
   Section 4.11 of the WPL Disclosure Schedule or in the WPL SEC Reports
   filed prior to the date hereof:

             (a)  Compliance.  

                  (i) Each of WPL and the WPL Subsidiaries and WPL Joint
        Ventures is in compliance with all applicable Environmental Laws (as
        hereinafter defined), except where the failure to be in compliance,
        in the aggregate does not, and insofar as reasonably can be foreseen,
        would not, have a WPL Material Adverse Effect; and 

                  (ii) neither WPL nor any of the WPL Subsidiaries and WPL
        Joint Ventures has received any communication (written or oral) from
        any person or Governmental Authority that alleges that WPL or any of
        the WPL Subsidiaries and WPL Joint Ventures is not in such compliance
        with applicable Environmental Laws.

             (b)  Environmental Permits.  Each of WPL and the WPL
   Subsidiaries has obtained all material environmental, health and safety
   permits and governmental authorizations (collectively, the "Environmental
   Permits") necessary for the construction of their facilities and the
   conduct of their operations, as applicable, and all such Environmental
   Permits are in good standing or, where applicable, a renewal application
   has been timely filed and is pending agency approval, and WPL and the WPL
   Subsidiaries are in compliance with all terms and conditions of the
   Environmental Permits, except where the failure to be in such compliance,
   in the aggregate does not, and insofar as reasonably can be foreseen,
   would not, have a WPL Material Adverse Effect.

             (c)  Environmental Claims.  There is no material Environmental
   Claim (as hereinafter defined) pending 

                  (i) against WPL or any of the WPL Subsidiaries or WPL Joint
        Ventures, 

                  (ii) against any person or entity whose liability for any
        Environmental Claim WPL or any of the WPL Subsidiaries has or may
        have retained or assumed either contractually or by operation of law,
        or 

                  (iii) against any real or personal property or operations
        which WPL or any of the WPL Subsidiaries owns, leases or manages, in
        whole or in part.

             (d)  Releases.  To the knowledge of WPL, there have not been any
   material Releases (as hereinafter defined) of any Hazardous Material (as
   hereinafter defined) that would be reasonably likely to form the basis of
   any material Environmental Claim against WPL or any of the WPL
   Subsidiaries, or against any person or entity whose liability for any
   material Environmental Claim WPL or any of the WPL Subsidiaries has or may
   have retained or assumed either contractually or by operation of law.

             (e)  Predecessors.  To the knowledge of WPL, with respect to any
   predecessor of WPL or any of the WPL Subsidiaries, there is no material
   Environmental Claim pending or threatened, and there has been no Release
   of Hazardous Materials that would be reasonably likely to form the basis
   of any material Environmental Claim.

             (f)  Disclosure.  To WPL's knowledge, WPL has disclosed to each
   of IES and Interstate all material facts which WPL reasonably believes
   form the basis of a material Environmental Claim arising from 

                  (i) the cost of WPL pollution control equipment currently
        required or known to be required in the future; 

                  (ii) current WPL remediation costs or WPL remediation costs
        known to be required in the future; or 

                  (iii) any other environmental matter affecting WPL or the
        WPL Subsidiaries or WPL Joint Ventures.

             (g)  As used in this Agreement:

                  (i)  "Environmental Claim" means any and all
        administrative, regulatory or judicial actions, suits, demands,
        demand letters, directives, claims, liens, investigations,
        proceedings or notices of noncompliance, liability or violation
        (written or oral) by any person or entity (including any Governmental
        Authority) alleging potential liability (including, without
        limitation, potential responsibility or liability for enforcement,
        investigatory costs, cleanup costs, governmental response costs,
        removal costs, remedial costs, natural resources damages, property
        damages, personal injuries or penalties) arising out of, based on or
        resulting from

                       (A)  the presence, or Release or threatened Release
             into the environment, of any Hazardous Materials at any
             location, whether or not owned, operated, leased or managed by
             WPL or any of the WPL Subsidiaries or WPL Joint Ventures (for
             purposes of this Section 4.11), or by IES or any of the IES
             Subsidiaries or IES Joint Ventures (as hereinafter defined) (for
             purposes of Section 5.11) or by Interstate or any of the
             Interstate Subsidiaries or Interstate Joint Ventures (as
             hereinafter defined) (for the purposes of Section 6.11); or 

                       (B)  circumstances forming the basis of any violation,
             or alleged violation, of any Environmental Law; or

                       (C)  any and all claims by any third party seeking
             damages, contribution, indemnification, cost recovery,
             compensation or injunctive relief resulting from the presence or
             Release of any Hazardous Materials;

                 (ii)  "Environmental Laws" means all Federal, state and
        local laws, rules and regulations relating to pollution, the
        environment (including, without limitation, ambient air, surface
        water, groundwater, land surface or subsurface strata) or protection
        of human health as it relates to the environment including, without
        limitation, laws and regulations relating to Releases or threatened
        Releases of Hazardous Materials, or otherwise relating to the
        manufacture, processing, distribution, use, treatment, storage,
        disposal, transport or handling of Hazardous Materials; 

                (iii)  "Hazardous Materials" means (a) any petroleum or
        petroleum products, radioactive materials, asbestos in any form that
        is or could become friable, urea formaldehyde foam insulation, and
        transformers or other equipment that contain dielectric fluid
        containing polychlorinated biphenyls; and (b) any chemicals,
        materials or substances which are now defined as or included in the
        definition of "hazardous substances," "hazardous wastes," "hazardous
        materials," "extremely hazardous wastes," "restricted hazardous
        wastes," "toxic substances," "toxic pollutants," or words of similar
        import, under any Environmental Law; and (c) any other chemical,
        material, substance or waste, exposure to which is now prohibited,
        limited or regulated under any Environmental Law in a jurisdiction in
        which WPL or any of the WPL Subsidiaries or WPL Joint Ventures
        operates (for purposes of this Section 4.11) or in which IES or any
        of the IES Subsidiaries or IES Joint Ventures operates (for purposes
        of Section 5.11) or in which Interstate or any of the Interstate
        Subsidiaries or Interstate Joint Ventures operates (for purposes of
        Section 6.11); and

                 (iv)  "Release" means any release, spill, emission, leaking,
        injection, deposit, disposal, discharge, dispersal, leaching or
        migration into the atmosphere, soil, surface water, groundwater or
        property.

             Section 4.12  Regulation as a Utility.  (a) WP&LC is regulated
   as a public utility in the State of Wisconsin and in no other state. 
   WP&LC's Subsidiary, South Beloit Water, Gas and Electric Company, an
   Illinois corporation, is a public utility supplying electric, gas and
   water service, principally in Winnebago County, Illinois.  Except as set
   forth in Section 4.12 of the WPL Disclosure Schedule, neither WPL nor any
   "subsidiary company" or "affiliate" of WPL is subject to regulation as a
   public utility or public service company (or similar designation) by any
   other state in the United States or any foreign country.  WPL is an exempt
   holding company under Section 3(a)(1) of the 1935 Act.

             (b) As used in this Section 4.12 and in Sections 5.12 and 6.12,
   the terms "subsidiary company" and "affiliate" shall have the respective
   meanings ascribed to them in the 1935 Act.

             Section 4.13  Vote Required.  The approval by the holders of a
   majority of the votes entitled to be cast by all holders of WPL Common
   Stock (the "WPL Shareholders' Approval") to approve the IES Merger, the
   issuance of the shares of WPL Common Stock in the Merger and the charter
   amendments as described in Section 8.19 of the WPL Disclosure Schedule is
   the only vote of the holders of any class or series of the capital stock
   of WPL required for any of the transactions contemplated by this Agreement
   or the Stock Option Agreements to which WPL is a party; provided, however,
   that the approval of shareholders of WPL may be required for the
   repurchase of shares of WPL Common Stock pursuant to Section 8(a) of each
   of the WPL/IES and WPL/Interstate Stock Option Agreements under
   circumstances where Section 180.1134 of the WBCL would be applicable.

             Section 4.14  Accounting Matters. 

             (a)  Neither WPL nor, to WPL's knowledge, any of its Affiliates
   (as hereinafter defined) has taken or agreed to take any action that would
   prevent WPL from accounting for the transactions to be effected pursuant
   to this Agreement as a pooling of interests in accordance with GAAP and
   applicable SEC regulations.  

             (b)  As used in this Agreement (except as specifically otherwise
   defined):

                  (i)  "Affiliate" means, as to any person, any other person
        which directly or indirectly controls, or is under common control
        with, or is controlled by, such person; and

                 (ii) "control" (including, with its correlative meanings,
        "controlled by" and "under common control with") means possession,
        directly or indirectly, of power to direct or cause the direction of
        management or policies (whether through ownership of securities or
        partnership or other ownership interests, by contract or otherwise).

             Section 4.15  Applicability of Certain Provisions of Wisconsin
   Law, Etc.  Assuming the representations and warranties of IES and
   Interstate made in Sections 5.18 and 6.18, respectively, are correct, none
   of the "control share voting" provisions of Section 180.1150 of the WBCL,
   the "business combination" provisions of Sections 180.1140 to 180.1144 of
   the WBCL, the "fair price" provisions of Sections 180.1130 to 180.1133 of
   the WBCL, or any other takeover related provisions of the WBCL (or, to the
   knowledge of WPL, any other similar state statute) or the Restated
   Articles of Incorporation or By-laws of WPL, are applicable to the
   transactions contemplated by this Agreement, including the granting or
   exercise of the WPL/IES and WPL/Interstate Stock Option Agreements (except
   as set forth in Section 4.15 of the WPL Disclosure Schedule).

             Section 4.16  Opinion of Financial Advisor.  As of the date
   hereof, WPL has received the opinion of Merrill Lynch & Co. ("Merrill"),
   to the effect that, as of the date hereof, the IES Ratio and the
   Interstate Ratio are fair to WPL from a financial point of view.

             Section 4.17  Insurance.  Except as set forth in Section 4.17 of
   the WPL Disclosure Schedule, each of WPL and the WPL Subsidiaries is, and
   has been continuously since January 1, 1990, insured with financially
   responsible insurers in such amounts and against such risks and losses as
   are customary in all material respects for companies conducting the
   business conducted by WPL and the WPL Subsidiaries during such time
   period.  Except as set forth in Section 4.17 of the WPL Disclosure
   Schedule, neither WPL nor any of the WPL Subsidiaries has received any
   notice of cancellation or termination with respect to any material
   insurance policy of WPL or any of the WPL Subsidiaries.  The insurance
   policies of WPL and each of the WPL Subsidiaries are valid and enforceable
   policies in all material respects.

             Section 4.18  Ownership of IES and Interstate Common Stock. 
   Except as set forth in Section 4.18 of the WPL Disclosure Schedule, and
   except pursuant to the terms of the IES/WPL Stock Option Agreement and the
   Interstate/WPL Stock Option Agreement, WPL does not "beneficially own" (as
   such term is defined for purposes of Section 13(d) of the Exchange Act)
   any shares of IES Common Stock or Interstate Common Stock.

             Section 4.19  WPL Rights Agreement.  Assuming the accuracy of
   the representations contained in Sections 5.18 and 6.18, the consummation
   of the transactions contemplated by this Agreement will not result in the
   triggering of any right or entitlement of WPL shareholders under the WPL
   Rights Agreement.

             Section 4.20  Operations of Nuclear Power Plant.  Except as set
   forth in Section 4.20 of the WPL Disclosure Schedule, the operations of
   the Kewaunee Nuclear Facility ("Kewaunee") owned by WPL (together with
   Wisconsin Public Service Corporation ("WPS") and Madison Gas & Electric
   Company, as tenants in common) and operated by WPS, have at all times been
   conducted in compliance with applicable health, safety, regulatory and
   other legal requirements, except where the failure to be in compliance in
   the aggregate does not, and insofar as can reasonably be foreseen, would
   not, have a WPL Material Adverse Effect.  Kewaunee maintains emergency
   plans designed to respond to an unplanned release from Kewaunee of
   radioactive materials into the environment.  Customary liability insurance
   consistent with industry practice and consistent with WPL's view of the
   risks inherent in the operation of a nuclear power facility currently
   exists with respect to Kewaunee.  Plans for the decommissioning of
   Kewaunee and for the short-term storage of spent nuclear fuel conform with
   the requirements of applicable law, and such plans have at all times been
   funded consistently with budget projections for such plans.    


                                    ARTICLE V

                      REPRESENTATIONS AND WARRANTIES OF IES

             IES represents and warrants to WPL and Interstate as follows:

             Section 5.1  Organization and Qualification.   Except as set
   forth in Section 5.1 of the Disclosure Schedule to this Agreement prepared
   and delivered by IES (the "IES Disclosure Schedule"), each of IES and the
   IES Subsidiaries (as hereinafter defined) is a corporation duly organized,
   validly existing and in good standing (to the extent applicable under the
   laws of its respective jurisdiction of incorporation or organization, has
   all requisite corporate power and authority, and has been duly authorized
   by all necessary approvals and orders to own, lease and operate its assets
   and properties to the extent owned, leased and operated and to carry on
   its business as it is now being conducted and is duly qualified and in
   good standing (to the extent applicable) to do business in each respective
   jurisdiction in which the nature of its business or the ownership or
   leasing of its assets and properties makes such qualification necessary,
   other than in such jurisdictions where the failure to be so qualified and
   in good standing would not, when taken together with all other such
   failures, have a material adverse effect on the business, operations,
   properties, assets, condition (financial or otherwise), or the results of
   operations of IES and the IES Subsidiaries taken as a whole or on the
   consummation of the transaction contemplated hereby (an "IES Material
   Adverse Effect"). 

             Section 5.2  Subsidiaries. 

             (a)  Section 5.2 of the IES Disclosure Schedule sets forth a
   description as of the date hereof, of all IES Subsidiaries and IES Joint
   Ventures, including (i) the name of each such entity and IES's interest
   therein, and (ii) a brief description of the principal line or lines of
   business conducted by each such entity.  

             (b)  Except as set forth in Section 5.2 of the IES Disclosure
   Schedule, none of the IES Subsidiaries is a "public utility company," a
   "holding company," a "subsidiary company" or an "affiliate" of any public
   utility company within the meaning of Section 2(a)(5), 2(a)(7), 2(a)(8) or
   2(a)(11) of the 1935 Act, respectively.  

             (c)  Except as set forth in Section 5.2 of the IES Disclosure
   Schedule, all of the issued and outstanding shares of capital stock of
   each IES Subsidiary are duly authorized, validly issued, fully paid,
   nonassessable and free of preemptive rights, and are owned, directly or
   indirectly, by IES free and clear of any liens, claims, encumbrances,
   security interests, equities, charges and options of any nature
   whatsoever, and there are no outstanding subscriptions, options, calls,
   contracts, voting trusts, proxies or other commitments, understandings,
   restrictions, arrangements, rights or warrants, including any right of
   conversion or exchange under any outstanding security, instrument or other
   agreement, obligating any such IES Subsidiary to issue, deliver or sell,
   or cause to be issued, delivered or sold, additional shares of its capital
   stock, or granting to any person other than IES or an IES Subsidiary any
   right to participate in its dividends or earnings or obligating it to
   grant, extend or enter into any such agreement or commitment.

             (d)  As used in this Agreement,

                  (i)  "IES Subsidiary" shall mean any Subsidiary of IES; and

                 (ii) "IES Joint Venture" shall mean any Joint Venture of IES
        or any IES Subsidiary.

             Section 5.3  Capitalization.  

             (a)  The authorized capital stock of IES consists of 

                  (i)  48,000,000 shares of IES Common Stock of which
        29,345,573 shares were issued and outstanding as of September 30,
        1995, and

                 (ii)  5,000,000 shares of IES Cumulative Preferred Stock, no
        par value ("IES Preferred Stock"), of which none were issued or
        outstanding as of September 30, 1995.  

             (b)  The authorized capital stock of IES's Subsidiary, IES
   Utilities Inc., an Iowa corporation ("Utilities") consists of

                  (i)  24,000,000 shares of common stock, par value $2.50 per
             share of which 13,370,788 shares were issued and outstanding as
             of September 30, 1995 ("Utilities Common Stock"),

                 (ii)  466,406 shares of Cumulative Preferred Stock, $50 par
             value (4.30% series, 4.80% series, and 6.10% series) of which
             120,000 of the 4.30% series, 146,354 of the 4.80% series, and
             100,000 of the 6.10% series were issued and outstanding as of
             September 30, 1995 ("Utilities Preferred Stock"), and

                (iii)  700,000 shares of Cumulative Preference Stock, $100
             par value, of which none were outstanding as of September 30,
             1995.

             (c)  All of the issued and outstanding shares of IES Common
   Stock, Utilities Common Stock and Utilities Preferred Stock are, and any
   shares of IES Common Stock issued pursuant to the IES/WPL and
   IES/Interstate Stock Option Agreements will be, duly authorized, validly
   issued, fully paid, nonassessable and free of preemptive rights.  

             (d)  Except as set forth in Section 5.3 of the IES Disclosure
   Schedule, as of the date hereof, there are no outstanding subscriptions,
   options, calls, contracts, voting trusts, proxies or other commitments,
   understandings, restrictions, arrangements, rights or warrants, including
   any right of conversion or exchange under any outstanding security,
   instrument or other agreement, obligating IES or any of the IES
   Subsidiaries to issue, deliver or sell, or cause to be issued, delivered
   or sold, additional shares of the capital stock of IES, or obligating IES
   to grant, extend or enter into any such agreement or commitment, other
   than under the IES/WPL and IES/Interstate Stock Option Agreements.  

             Section 5.4  Authority; Non-contravention; Statutory Approvals;
   Compliance.

             (a)  Authority.  IES has all requisite corporate power and
   authority to enter into this Agreement and the IES/WPL and IES/Interstate
   Stock Option Agreements, and, subject to the applicable IES Shareholders'
   Approval (as hereinafter defined) and the applicable IES Required
   Statutory Approvals (as hereinafter defined), to consummate the
   transactions contemplated hereby or thereby.  The execution and delivery
   of this Agreement and the IES/WPL and IES/Interstate Stock Option
   Agreements and the consummation by IES of the transactions contemplated
   hereby and thereby have been duly authorized by all necessary corporate
   action on the part of IES, subject to obtaining the applicable IES
   Shareholders' Approval.  Each of this Agreement and the IES/WPL and
   IES/Interstate Stock Option Agreements has been duly and validly executed
   and delivered by IES and, assuming the due authorization, execution and
   delivery hereof and thereof by the other signatories hereto and thereto,
   constitutes the valid and binding obligation of IES enforceable against it
   in accordance with its terms, except as may be limited by applicable
   bankruptcy, insolvency, reorganization or other similar laws affecting the
   enforcement of creditors' rights generally, and except that the
   availability of equitable remedies, including specific performance, may be
   subject to the discretion of any court before which any proceeding
   therefor may be brought.

             (b)  Non-contravention.  Except as set forth in
   Section 5.4(b) of the IES Disclosure Schedule, the execution and delivery
   of this Agreement and the IES/WPL and IES/Interstate Stock Option
   Agreements by IES do not, and the consummation of the transactions
   contemplated hereby or thereby will not, result in a Violation pursuant to
   any provisions of:

                  (i)  the Articles of Incorporation, By-laws or similar
        governing documents of IES or any of the IES Subsidiaries or the IES
        Joint Ventures;

                 (ii)  subject to obtaining the IES Required Statutory
        Approvals and the receipt of the IES Shareholders' Approval, any
        statute, law, ordinance, rule, regulation, judgment, decree, order,
        injunction, writ, permit or license of any Governmental Authority
        applicable to IES or any of IES Subsidiaries or IES Joint Ventures or
        any of their respective properties or assets, or

                (iii)  subject to obtaining the third-party consents set
        forth in Section 5.4(b) of the IES Disclosure Schedule (the "IES
        Required Consents"), any material note, bond, mortgage, indenture,
        deed of trust, license, franchise, permit, concession, contract,
        lease or other instrument, obligation or agreement of any kind to
        which IES or any of the IES Subsidiaries or IES Joint Ventures is a
        party or by which it or any of its properties or assets may be bound
        or affected,

   excluding from the foregoing clauses (ii) and (iii) such violations which,
   in the aggregate do not, and insofar as reasonably can be foreseen, would
   not, have an IES Material Adverse Effect.

             (c)  Statutory Approvals.  No declaration, filing or
   registration with, or notice to or authorization, consent or approval of,
   any Governmental Authority is necessary for the execution and delivery of
   this Agreement or the IES/WPL and IES/Interstate Stock Option Agreements
   by IES or the consummation by IES of the transactions contemplated hereby
   or thereby, except as described in Section 5.4(c) of the IES Disclosure
   Schedule (the "IES Required Statutory Approvals", it being understood that
   references in this Agreement to "obtaining" such IES Required Statutory
   Approvals shall mean making such declarations, filings or registrations;
   giving such notices; obtaining such authorizations, consents or approvals;
   and having such waiting periods expire as are necessary to avoid a
   violation of law).

             (d)  Compliance.

                  (i)  Except as set forth in Section 5.4(d), Section 5.10 or
        Section 5.11 of the IES Disclosure Schedule, or as disclosed in the
        IES SEC Reports (as hereinafter defined) filed prior to the date
        hereof, neither IES nor any of the IES Subsidiaries nor, to the
        knowledge of IES, any IES Joint Venture, is in violation of, is under
        investigation with respect to any violation of, or has been given
        notice or been charged with any violation of, any law, statute,
        order, rule, regulation, ordinance or judgment (including, without
        limitation, any applicable environmental law, ordinance or
        regulation) of any Governmental Authority, except for violations
        which, in the aggregate do not, and insofar as reasonably can be
        foreseen, would not, have an IES Material Adverse Effect.

                 (ii)  Except as set forth in Section 5.4(d) or in
        Section 5.11 of the IES Disclosure Schedule, IES and the IES
        Subsidiaries and IES Joint Ventures have all Permits necessary to
        conduct their businesses as presently conducted, except those the
        failure of which to obtain, in the aggregate do not, and insofar as
        reasonably can be foreseen, would not, have an IES Material Adverse
        Effect. 

                (iii)  Except as set forth in Section 5.4(d) of the IES
        Disclosure Schedule, each of IES and the IES Subsidiaries and IES
        Joint Ventures is not in breach, violation, or default in the
        performance or observance of any term or provision of, and no event
        has occurred which, with lapse of time or action by a third party,
        could result in a default under,

                  (A) its Articles of Incorporation or By-laws, or

                  (B) any contract, commitment, agreement, indenture,
             mortgage, loan agreement, note, lease, bond, license, approval
             or other instrument to which it is a party or by which it is
             bound or to which any of its property is subject, except for
             breaches, violations or defaults which, in the aggregate do not,
             and insofar as reasonably can be foreseen, would not, have an
             IES Material Adverse Effect.

             Section 5.5  Reports and Financial Statements.  

             (a)  The filings required to be made by IES and the IES
   Subsidiaries since January 1, 1992 under the Securities Act, the Exchange
   Act, the 1935 Act, the Power Act, the Atomic Energy Act and applicable
   state laws and regulations have been filed with the SEC, the FERC, the
   NRC, the DOE or any appropriate state public utilities commission, as the
   case may be, including all forms, statements, reports, agreements (oral or
   written) and all documents, exhibits, amendments and supplements
   appertaining thereto, and complied, as of their respective dates, in all
   material respects with all applicable requirements of the appropriate
   statute and the rules and regulations thereunder.  

             (b)  IES has made available to WPL and Interstate a true and
   complete copy of each form, report, schedule, registration statement and
   definitive proxy statement filed by each of IES and Utilities with the SEC
   since January 1, 1992 (as such documents have since the time of their
   filing been amended or supplemented, the "IES SEC Reports") and each other
   filing described in Section 5.5(a).  As of their respective dates, the IES
   SEC Reports did not contain any 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, in light of the circumstances under which
   they were made, not misleading.

             (c)  The audited consolidated financial statements and unaudited
   interim financial statements of IES and Utilities, as the case may be,
   included in the IES SEC Reports (collectively, the "IES Financial
   Statements") have been prepared in accordance with GAAP (except as may be
   indicated therein or in the notes thereto and except with respect to
   unaudited statements as permitted by Form 10-Q under the Exchange Act) and
   fairly present in all material respects the financial position of IES or
   Utilities, as the case may be, as of the dates thereof and the results of
   its operations and cash flows for the periods then ended, subject, in the
   case of the unaudited interim financial statements, to normal, recurring
   audit adjustments.  

             (d)  True, accurate and complete copies of the Restated Articles
   of Incorporation and By-laws of IES, as in effect on the date hereof, are
   included (or incorporated by reference) in the IES SEC Reports.

             Section 5.6  Absence of Certain Changes or Events. Except as
   disclosed in the IES SEC Reports filed prior to the date hereof or as set
   forth in Section 5.6 of the IES Disclosure Schedule, since December 31,
   1994, IES and each of the IES Subsidiaries and IES Joint Ventures have
   conducted their businesses only in the ordinary course of their respective
   businesses consistent with past practice and there has not been, and no
   facts or conditions exist (other than facts or conditions of general
   applicability to electric utility companies in the region in which WPL,
   IES and Interstate operate) which, in the aggregate have or, insofar as
   reasonably can be foreseen, would have, an IES Material Adverse Effect.

             Section 5.7  Litigation.  Except as disclosed in the IES SEC
   Reports filed prior to the date hereof or as set forth in Section 5.7,
   Section 5.9 or Section 5.11 of the IES Disclosure Schedule, 

             (a) there are no claims, suits, actions or proceedings pending
        or, to the knowledge of IES, threatened, nor are there, to the
        knowledge of IES, any investigations or reviews pending or threatened
        against, relating to or affecting IES or any of the IES Subsidiaries
        and, to the knowledge of IES, the IES Joint Ventures; 

             (b) there have not been any developments since December 31, 1994
        with respect to such disclosed claims, suits, actions, proceedings,
        investigations or reviews; and 

             (c) there are no judgments, decrees, injunctions, rules or
        orders of any court, governmental department, commission, agency,
        instrumentality or authority or any arbitrator applicable to IES or
        any of the IES Subsidiaries and, to the knowledge of IES, or the IES
        Joint Ventures,

   which, when taken together with any other nondisclosures of matters
   described in clauses (a), (b) and (c), have, or insofar as reasonably can
   be foreseen, would have, an IES Material Adverse Effect.


             Section 5.8  Registration Statement and Proxy Statement.

             (a)  None of the information supplied or to be supplied by or on
   behalf of IES for inclusion or incorporation by reference in:

                  (i)  the Registration Statement will, at the time the
        Registration Statement is filed with the SEC and at the time it
        becomes effective under the Securities Act, contain any untrue
        statement of a material fact or omit to state any material fact
        required to be stated therein or necessary to make the statements
        therein, not misleading, and 

                 (ii)  the Proxy Statement will, at the date mailed to
        shareholders and at the times of the meetings of shareholders to be
        held in connection with the IES Merger, contain any untrue statement
        of a material fact or omit to state any material fact required to be
        stated therein or necessary in order to make the statements therein,
        in light of the circumstances under which they are made, not
        misleading.

             (b)  The Registration Statement and the Proxy Statement will
   comply as to form in all material respects with the provisions of the
   Securities Act and the Exchange Act, respectively, and the applicable
   rules and regulations thereunder.

             Section 5.9  Tax Matters.  Except as set forth in Section 5.9 of
   the IES Disclosure Schedule:

             (a)  Filing of Timely Tax Returns.  IES and each of the IES
   Subsidiaries have filed (or there has been filed on its behalf) all Tax
   Returns required to be filed by each of them under applicable law.  All
   such Tax Returns were and are in all material respects true, complete and
   correct and filed on a timely basis.

             (b)  Payment of Taxes.  IES and each of the IES Subsidiaries
   have, within the time and in the manner prescribed by law, paid all Taxes
   that are currently due and payable except for those contested in good
   faith and for which adequate reserves have been taken.

             (c)  Tax Reserves.  IES and the IES Subsidiaries have
   established on their books and records reserves adequate to pay all Taxes
   and reserves for deferred income taxes in accordance with GAAP.

             (d)  Tax Liens.  There are no Tax liens upon the assets of IES
   or any of the IES Subsidiaries except liens for Taxes not yet due.

             (e)  Withholding Taxes.  IES and each of the IES Subsidiaries
   have complied in all material respects with the provisions of the Code
   relating to the withholding of Taxes, as well as similar provisions under
   any other laws, and have, within the time and in the manner prescribed by
   law, withheld from employee wages and paid over to the proper governmental
   authorities all amounts required.

             (f)  Extensions of Time for Filing Tax Returns.  Neither IES nor
   any of the IES Subsidiaries has requested any extension of time within
   which to file any Tax Return, which Tax Return has not since been timely
   filed.

             (g)  Waivers of Statute of Limitations.  Neither IES nor any of
   the IES Subsidiaries has executed any outstanding waivers or comparable
   consents regarding the application of the statute of limitations with
   respect to any Taxes or Tax Returns.

             (h)  Expiration of Statute of Limitations.  The statute of
   limitations for the assessment of all Taxes has expired for all applicable
   Tax Returns of IES and each of the IES Subsidiaries or those Tax Returns
   have been examined by the appropriate taxing authorities for all Tax
   periods ended before the date hereof, and no deficiency for any Taxes has
   been proposed, asserted or assessed against IES or any of the IES
   Subsidiaries that has not been resolved and paid in full.

             (i)  Audit, Administrative and Court Proceedings.  No audits or
   other administrative proceedings or court proceedings are presently
   pending with regard to any Taxes or Tax Returns of IES or any of the IES
   Subsidiaries.

             (j)  Powers of Attorney.  No power of attorney currently in
   force has been granted by IES or any of the IES Subsidiaries concerning
   any Tax matter.

             (k)  Tax Rulings.  Neither IES nor any of the IES Subsidiaries
   has received a Tax Ruling or entered into a Closing Agreement with any
   taxing authority that would have a continuing adverse effect after the
   Closing Date.

             (l)  Availability of Tax Returns.  IES has made available to WPL
   and Interstate complete and accurate copies covering the six years ended
   December 31, 1994 of (i) all Tax Returns, and any amendments thereto,
   filed by IES or any of the IES Subsidiaries, (ii) all audit reports
   received from any taxing authority relating to any Tax Return filed by IES
   or any of the IES Subsidiaries, and (iii) any Closing Agreements entered
   into by IES or any of the IES Subsidiaries with any taxing authority.

             (m)  Tax Sharing Agreements.  Neither IES nor any IES Subsidiary
   is a party to any agreement relating to allocating or sharing of Taxes.

             (n)  Code Section 280G.  Except as set forth in Section 5.9(n)
   of the IES Disclosure Schedule, neither IES nor any of the IES
   Subsidiaries is a party to any agreement, contract, or arrangement that
   could result, on account of the transactions contemplated hereunder,
   separately or in the aggregate, in the payment of any "excess parachute
   payments" within the meaning of Section 280G of the Code.

             (o)  Liability for Others.  None of IES or any of the IES
   Subsidiaries has any liability for Taxes of any person other than IES and
   the IES Subsidiaries (i) under Treasury Regulations Section 1.1502-6 (or
   any similar provision of state, local or foreign law) as a transferee or
   successor, (ii) by contract, or (iii) otherwise.

             Section 5.10  Employee Matters; ERISA.

             (a)  Benefit Plans.  Section 5.10(a) of the IES Disclosure
   Schedule contains a true and complete list of each employee benefit plan,
   program or arrangement covering employees, former employees or directors
   of IES and each of the IES Subsidiaries or their beneficiaries, or
   providing benefits to such persons in respect of services provided to any
   such entity, including, but not limited to, employee benefit plans within
   the meaning of Section 3(3) of ERISA and any severance or change in
   control agreement (collectively, the "IES Benefit Plans").  For the
   purposes of this Section 5.10 only, the term "IES" shall be deemed to
   include the predecessors of such company.

             (b)  Contributions.  Except as set forth in Section 5.10(b) of
   the IES Disclosure Schedule, all material contributions and other payments
   required to be made by IES or any of the IES Subsidiaries to any IES
   Benefit Plan (or to any person pursuant to the terms thereof) have been
   made or the amount of such payment or contribution obligation has been
   reflected in the IES Financial Statements.

             (c)  Qualification; Compliance.  Except as set forth in Section
   5.10(c) of the IES Disclosure Schedule, each of the IES Benefit Plans
   intended to be "qualified" within the meaning of Section 401(a) of the
   Code has been determined by the IRS to be so qualified, and, to the
   knowledge of IES, no circumstances exist that are reasonably expected by
   IES to result in the revocation of any such determination.  IES is in
   compliance in all respects with, and each of the IES Benefit Plans is and
   has been operated in all respects in compliance with, all applicable laws,
   rules and regulations governing each such plan, including, without
   limitation, ERISA and the Code, except for any violations that, in the
   aggregate do not, and insofar as reasonably can be foreseen, would not,
   give rise to an IES Material Adverse Effect.  Each IES Benefit Plan
   intended to provide for the deferral of income, the reduction of salary or
   other compensation, or to afford other income tax benefits, complies in
   all material respects with the requirements of the applicable provisions
   of the Code or other laws, rules and regulations required to provide such
   income tax benefits.

             (d)  Liabilities.  With respect to the IES Benefit Plans,
   individually and in the aggregate, no event has occurred, and, to the
   knowledge of IES, there does not now exist any condition or set of
   circumstances that could subject IES or any of the IES Subsidiaries to any
   liability arising under the Code, ERISA or any other applicable law
   (including, without limitation, any liability of any kind whatsoever,
   whether direct or indirect, contingent, inchoate or otherwise, to any such
   plan or the PBGC), or under any indemnity agreement to which IES is
   subject, which liability, excluding liability for PBGC premiums, benefit
   claims and funding obligations payable in the ordinary course, has, or
   insofar as reasonably can be foreseen, would have, an IES Material Adverse
   Effect.

             (e)  Welfare Plans.  Except a set forth in Section 5.10(e) of
   the IES Disclosure Schedule, none of the IES Benefit Plans that are
   "welfare plans" within the meaning of Section 3(1) of ERISA, provides for
   any benefits payable to or on behalf of any employee or director after
   termination of employment or service, as the case may be, other than
   elective continuation coverage required to be provided under Section 4980B
   of the Code or Part 6 of Title I of ERISA or coverage which expires at the
   end of the calendar month following such event.

             (f)  Documents made Available.  IES has made available to WPL
   and Interstate a true and correct copy of each collective bargaining
   agreement to which IES or any of the IES Subsidiaries is a party or under
   which IES or any of the IES Subsidiaries has obligations and, with respect
   to each IES Benefit Plan, where applicable, 

                  (i)  such plan and summary plan description,

                 (ii)  the most recent annual report filed with the IRS, 

                (iii)  each related trust agreement, insurance contract,
        service provider or investment management agreement (including all
        amendments to each such document),

                 (iv)  the most recent determination of the IRS with respect
        to the qualified status of such IES Benefit Plan, and 

                  (v)  the most recent actuarial report or valuation.

             (g)  Payments Resulting from Merger.  Except as set forth in
   Section 5.10(g) of the IES Disclosure Schedule:  

                  (i)  The consummation or announcement of any transaction
        contemplated by this Agreement will not (either alone or upon the
        occurrence of any additional or further acts or events) result in any


                       (A)  payment (whether of severance pay or otherwise)
             becoming due from IES or any of the IES Subsidiaries to any
             officer, employee, former employee or director thereof or to the
             trustee under any "rabbi trust" or similar arrangement that
             would not have been paid without regard to such consummation or
             announcement or 

                       (B)  benefit under any IES Benefit Plan being
             established or becoming accelerated, vested or payable; and

                 (ii)  neither IES nor any of the IES Subsidiaries is a party
        to

                       (A) any management, employment, deferred compensation,
             severance (including any payment, right or benefit resulting
             from a change in control), bonus or other contract for personal
             services with any officer, director or employee,

                       (B) any consulting contract with any person who prior
             to entering into such contract was a director or officer of IES,
             or

                       (C) any material plan, agreement, arrangement or
             understanding similar to any of the foregoing.

             (h)  Labor Agreements.  Except as set forth in Section 5.10(h)
   of the IES Disclosure Schedule, as of the date hereof, neither IES nor any
   of the IES Subsidiaries is a party to any collective bargaining agreement
   or other labor agreement with any union or labor organization.  To the
   knowledge of IES, as of the date hereof, there is no current union
   representation question involving employees of IES or any of the IES
   Subsidiaries, nor does IES know of any activity or proceeding of any labor
   organization (or representative thereof) or employee group to organize any
   such employees.  Except as disclosed in the IES SEC Reports filed prior to
   the date hereof or in Section 5.10(h) of the IES Disclosure Schedule,

                  (i) there is no material unfair labor practice, employment
        discrimination or other complaint against IES or any of the IES
        Subsidiaries pending, or to the knowledge of IES, threatened, 

                  (ii) there is no strike, lockout or material dispute,
        slowdown or work stoppage pending, or to the knowledge of IES,
        threatened, against or involving IES or any of the IES Subsidiaries,
        and

                  (iii) there is no material proceeding, claim, suit, action
        or governmental investigation pending or, to the knowledge of IES,
        threatened, in respect of which any director, officer, employee or
        agent of IES or any of the IES Subsidiaries is or may be entitled to
        claim indemnification from IES or such IES Subsidiary pursuant to
        their respective Articles of Incorporation or By-laws.

             Section 5.11  Environmental Protection.  Except as set forth in
   Section 5.11 of the IES Disclosure Schedule or in the IES SEC Reports
   filed prior to the date hereof:

             (a)  Compliance.  

                  (i)  Each of IES and the IES Subsidiaries and IES Joint
        Ventures is in compliance with all applicable Environmental Laws,
        except where the failure to be in compliance, in the aggregate does
        not, and insofar as reasonably can be foreseen, would not, have a IES
        Material Adverse Effect; and 

                  (ii) neither IES nor any of the IES Subsidiaries and IES
        Joint Ventures has received any communication (written or oral) from
        any person or Governmental Authority that alleges that IES or any of
        the IES Subsidiaries and IES Joint Ventures is not in such compliance
        with applicable Environmental Laws.

             (b)  Environmental Permits.  Each of IES and the IES
   Subsidiaries has obtained all Environmental Permits necessary for the
   construction of their facilities and the conduct of their operations, as
   applicable, and all such Environmental Permits are in good standing or,
   where applicable, a renewal application has been timely filed and is
   pending agency approval, and IES and the IES Subsidiaries are in
   compliance with all terms and conditions of the Environmental Permits,
   except where the failure to be in such compliance, in the aggregate does
   not, and insofar as reasonably can be foreseen, would not, have an IES
   Material Adverse Effect.

             (c)  Environmental Claims.  There is no material Environmental
   Claim pending 

                  (i) against IES or any of the IES Subsidiaries or IES Joint
        Ventures, 

                  (ii) against any person or entity whose liability for any
        Environmental Claim IES or any of the IES Subsidiaries has or may
        have retained or assumed either contractually or by operation of law,
        or 

                  (iii) against any real or personal property or operations
        which IES or any of the IES Subsidiaries owns, leases or manages, in
        whole or in part.

             (d)  Releases.  To the knowledge of IES, there have not been any
   material Releases of any Hazardous Material that would be reasonably
   likely to form the basis of any material Environmental Claim against IES
   or any of the IES Subsidiaries, or against any person or entity whose
   liability for any material Environmental Claim IES or any of the IES
   Subsidiaries has or may have retained or assumed either contractually or
   by operation of law.

             (e)  Predecessors.  To the knowledge of IES, with respect to any
   predecessor of IES or any of the IES Subsidiaries, there is no material
   Environmental Claim pending or threatened, and there has been no Release
   of Hazardous Materials that would be reasonably likely to form the basis
   of any material Environmental Claim.

             (f)  Disclosure.  To IES's knowledge, IES has disclosed to each
   of WPL and Interstate all material facts which IES reasonably believes
   form the basis of a material Environmental Claim arising from 

                  (i) the cost of IES pollution control equipment currently
        required or known to be required in the future; 

                  (ii) current IES remediation costs or IES remediation costs
        known to be required in the future; or

                  (iii) any other environmental matter affecting IES or the
        IES Subsidiaries or IES Joint Ventures.

             Section 5.12  Regulation as a Utility.  Utilities is regulated
   as a public utility in the State of Iowa and in no other state.  Except as
   set forth in Section 5.12 of the IES Disclosure Schedule, neither IES nor
   any "subsidiary company" or "affiliate" of IES is subject to regulation as
   a public utility or public service company (or similar designation) by any
   other state in the United States or any foreign country.  IES is an exempt
   holding company under Section 3(a)(1) of the 1935 Act.

             Section 5.13  Vote Required.  The approval by the holders of a
   majority of the votes entitled to be cast by all holders of IES Common
   Stock (the "IES Shareholders' Approval") to approve the IES Merger, is the
   only vote of the holders of any class or series of capital stock of IES
   required for any of the transactions required by this Agreement or the
   Stock Option Agreements to which IES is a party.

             Section 5.14  Accounting Matters.  Neither IES nor, to IES's
   knowledge, any of its Affiliates has taken or agreed to take any action
   that would prevent IES from accounting for the transactions to be effected
   pursuant to this Agreement as a pooling of interests in accordance with
   GAAP and applicable SEC regulations.  

             Section 5.15  Applicability of Certain Iowa Law, Etc.  Assuming
   the representations and warranties of WPL and Interstate made in Sections
   4.18 and 6.18, respectively, are correct, none of the "fair price"
   provisions of Section 502.214.7 of the IBCA, or any other takeover related
   provisions of the IBCA (or, to the knowledge of IES, any other similar
   state statute) or the Restated Articles of Incorporation or By-laws of IES
   is applicable to the transaction contemplated by this Agreement, including
   the granting or exercise of the IES/WPL and IES/Interstate Stock Option
   Agreements (except as set forth on Schedule 5.15 of the IES Disclosure
   Schedule). 

             Section 5.16  Opinion of Financial Advisor.  As of the date
   hereof, IES has received the opinion of Morgan Stanley & Co. Incorporated
   ("Morgan"), to the effect that, as of the date hereof, the IES Ratio,
   taking into account the Interstate Ratio, is fair from a financial point
   of view to the holders of IES Common Stock.

             Section 5.17  Insurance.  Except as set forth in Section 5.17 of
   the IES Disclosure Schedule, each of IES and the IES Subsidiaries is, and
   has been continuously since January 1, 1990, insured with financially
   responsible insurers in such amounts and against such risks and losses as
   are customary in all material respects for companies conducting the
   business conducted by IES and the IES Subsidiaries during such time
   period.  Except as set forth in Section 5.17 of the IES Disclosure
   Schedule, neither IES nor any of the IES Subsidiaries has received any
   notice of cancellation or termination with respect to any material
   insurance policy of IES or any of the IES Subsidiaries.  The insurance
   policies of IES and each of the IES Subsidiaries are valid and enforceable
   policies in all material respects.

             Section 5.18  Ownership of WPL and Interstate Common Stock. 
   Except as set forth in Section 5.18 of the IES Disclosure Schedule, and
   except pursuant to the terms of the WPL/IES Stock Option Agreement and the
   Interstate/IES Stock Option Agreement, IES does not "beneficially own" (as
   such term is defined for purposes of Section 13(d) of the Exchange Act)
   any shares of WPL Common Stock or Interstate Common Stock.

             Section 5.19  IES Rights Agreement.  Assuming the accuracy of
   the representations contained in Sections 4.18 and 6.18, the consummation
   of the transactions contemplated by this Agreement will not result in the
   triggering of any right or entitlement of IES shareholders under the
   Rights Agreement, dated as of November 6, 1991, between IES and IES, as
   rights agent (the "IES Rights Agreement").

             Section 5.20  Operations of Nuclear Power Plant.  Except as set
   forth in Section 5.20 of the IES Disclosure Schedule, the operations of
   the Duane Arnold Energy Center ("DAEC") owned by IES (together with
   Central Iowa Power Cooperative and Cornbelt Power Cooperative, as tenants
   in common) and operated by IES, have at all times been conducted in
   compliance with applicable health, safety, regulatory and other legal
   requirements, except where the failure to be in compliance in the
   aggregate does not, and insofar as can reasonably be foreseen, would not,
   have an IES Material Adverse Effect.  DAEC maintains emergency plans
   designed to respond to an unplanned release from DAEC of radioactive
   materials into the environment.  Customary liability insurance consistent
   with industry practice and consistent with IES's view of the risks
   inherent in the operation of a nuclear power facility currently exists
   with respect to DAEC.  Plans for the decommissioning of DAEC and for the
   short-term storage of spent nuclear fuel conform with the requirements of
   applicable law, and such plans have at all times been funded consistently
   with budget projections for such plans.    

                                   ARTICLE VI

                  REPRESENTATIONS AND WARRANTIES OF INTERSTATE

             Interstate represents and warrants to WPL and IES as follows:

             Section 6.1  Organization and Qualification.   Except as set
   forth in Section 6.1 of the Disclosure Schedule to this Agreement prepared
   and delivered by Interstate (the "Interstate Disclosure Schedule"), each
   of Interstate and the Interstate Subsidiaries (as hereinafter defined) is
   a corporation duly organized, validly existing and in good standing (to
   the extent applicable) under the laws of its respective jurisdiction of
   incorporation or organization, has all requisite corporate power and
   authority, and has been duly authorized by all necessary approvals and
   orders to own, lease and operate its assets and properties to the extent
   owned, leased and operated and to carry on its business as it is now being
   conducted and is duly qualified and in good standing (to the extent
   applicable) to do business in each respective jurisdiction in which the
   nature of its business or the ownership or leasing of its assets and
   properties makes such qualification necessary, other than in such
   jurisdictions where the failure to be so qualified and in good standing
   would not, when taken together with all other such failures, have a
   material adverse effect on the business, operations, properties, assets,
   condition (financial or otherwise), or the results of operations of
   Interstate and the Interstate Subsidiaries taken as a whole or on the
   consummations of the transactions contemplated hereby (an "Interstate
   Material Adverse Effect"). 

             Section 6.2  Subsidiaries. 

             (a)  Section 6.2 of the Interstate Disclosure Schedule sets
   forth a description as of the date hereof, of all Interstate Subsidiaries
   and Interstate Joint Ventures, including (i) the name of each such entity
   and Interstate's interest therein, and (ii) a brief description of the
   principal line or lines of business conducted by each such entity.

             (b)  Except as set forth in Section 6.2 of the Interstate
   Disclosure Schedule, none of the Interstate Subsidiaries is a "public
   utility company," a "holding company," a "subsidiary company" or an
   "affiliate" of any public utility company within the meaning of
   Section 2(a)(5), 2(a)(7), 2(a)(8) or 2(a)(11) of the 1935 Act,
   respectively.

             (c)  Except as set forth in Section 6.2 of the Interstate
   Disclosure Schedule, all of the issued and outstanding shares of capital
   stock of each Interstate Subsidiary are duly authorized, validly issued,
   fully paid, nonassessable and free of preemptive rights, and are owned,
   directly or indirectly, by Interstate free and clear of any liens, claims,
   encumbrances, security interests, equities, charges and options of any
   nature whatsoever, and there are no outstanding subscriptions, options,
   calls, contracts, voting trusts, proxies or other commitments,
   understandings, restrictions, arrangements, rights or warrants, including
   any right of conversion or exchange under any outstanding security,
   instrument or other agreement, obligating any such Interstate Subsidiary
   to issue, deliver or sell, or cause to be issued, delivered or sold,
   additional shares of its capital stock or granting to any person other
   than Interstate or any Interstate Subsidiary any right to participate in
   its dividends or earnings or obligating it to grant, extend or enter into
   any such agreement or commitment.

             (d)  As used in this Agreement,

                  (i)  "Interstate Subsidiary" shall mean any Subsidiary of
        Interstate; and

                 (ii)  "Interstate Joint Venture" shall mean any Joint
        Venture of Interstate or any Interstate Subsidiary.

             Section 6.3  Capitalization.  

             (a)  The authorized capital stock of Interstate consists of

                  (i)  30,000,000 shares of Interstate Common Stock of which
        9,564,287 shares were issued and outstanding as of September 30,
        1995, 

                 (ii)  2,000,000 shares of Interstate Preferred Stock were
        authorized, of which 761,381 shares of the 4.36% series, 4.68%
        series, 6.40% series and 7.76% series were issued and outstanding as
        of September 30, 1995, and

                (iii)  2,000,000 shares of Interstate Preference Stock, $1.00
        par value, of which none were issued and outstanding as of September
        30, 1995.

             (b)  All of the issued and outstanding shares of Interstate
   Common Stock and Interstate Preferred Stock are, and any shares of
   Interstate Common Stock issued pursuant to the Interstate/WPL and
   Interstate/IES Stock Option Agreements will be, duly authorized, validly
   issued, fully paid, nonassessable and free of preemptive rights.  

             (c)  Except as set forth in Section 6.3 of the Interstate
   Disclosure Schedule, as of the date hereof, there are no outstanding
   subscriptions, options, calls, contracts, voting trusts, proxies or other
   commitments, understandings, restrictions, arrangements, rights or
   warrants, including any right of conversion or exchange under any
   outstanding security, instrument or other agreement, obligating Interstate
   or any of the Interstate Subsidiaries to issue, deliver or sell, or cause
   to be issued, delivered or sold, additional shares of the capital stock of
   Interstate, or obligating Interstate to grant, extend or enter into any
   such agreement or commitment, other than under the Interstate/WPL and
   Interstate/IES Stock Option Agreements.  

             Section 6.4  Authority; Non-contravention; Statutory Approvals;
   Compliance.

             (a)  Authority.  Interstate has all requisite corporate power
   and authority to enter into this Agreement and the Interstate/WPL and
   Interstate/IES Stock Option Agreements, and, subject to the applicable
   Interstate Shareholders' Approval (as hereinafter defined) and the
   applicable Interstate Required Statutory Approvals (as hereinafter
   defined), to consummate the transactions contemplated hereby or thereby. 
   The execution and delivery of this Agreement and the Interstate/WPL and
   Interstate/IES Stock Option Agreements and the consummation by Interstate
   of the transactions contemplated hereby and thereby have been duly
   authorized by all necessary corporate action on the part of Interstate,
   subject to obtaining the applicable Interstate Shareholders' Approval. 
   Each of this Agreement and the Interstate/WPL and Interstate/IES Stock
   Option Agreements has been duly and validly executed and delivered by
   Interstate and, assuming the due authorization, execution and delivery
   hereof and thereof by the other signatories hereto and thereto,
   constitutes the valid and binding obligation of Interstate enforceable
   against it in accordance with its terms, except as may be limited by
   applicable bankruptcy, insolvency, reorganization or other similar laws
   affecting the enforcement of creditors' rights generally, and except that
   the availability of equitable remedies, including specific performance,
   may be subject to the discretion of any court before which any proceeding
   therefor may be brought.

             (b)  Non-contravention.  Except as set forth in
   Section 6.4(b) of the Interstate Disclosure Schedule, the execution and
   delivery of this Agreement and the Interstate/WPL and Interstate/IES Stock
   Option Agreements by Interstate do not, and the consummation of the
   transactions contemplated hereby or thereby will not, result in a
   Violation pursuant to any provisions of:

                  (i)  the Articles of Incorporation, By-laws or similar
        governing documents of Interstate or any of the Interstate
        Subsidiaries or Interstate Joint Ventures;

                 (ii)  subject to obtaining the Interstate Required Statutory
        Approvals and the receipt of the Interstate Shareholders' Approval,
        any statute, law, ordinance, rule, regulation, judgment, decree,
        order, injunction, writ, permit or license of any Governmental
        Authority applicable to Interstate or any of the Interstate
        Subsidiaries or Interstate Joint Ventures or any of their respective
        properties or assets; or

                (iii)  subject to obtaining the third-party consents set
        forth in Section 6.4(b) of the Interstate Disclosure Schedule (the
        "Interstate Required Consents"), any material note, bond, mortgage,
        indenture, deed of trust, license, franchise, permit, concession,
        contract, lease or other instrument, obligation or agreement of any
        kind to which Interstate or any of the Interstate Subsidiaries or the
        Interstate Joint Ventures is a party or by which it or any of its
        properties or assets may be bound or affected,

   excluding from the foregoing clauses (ii) and (iii) such violations which,
   in the aggregate do not, and insofar as reasonably can be foreseen, would
   not, have an Interstate Material Adverse Effect.

             (c)  Statutory Approvals.  No declaration, filing or
   registration with, or notice to or authorization, consent or approval of,
   any Governmental Authority is necessary for the execution and delivery of
   this Agreement or the Interstate/WPL and Interstate/IES Stock Option
   Agreements by Interstate or the consummation by Interstate of the
   transactions contemplated hereby or thereby, except as described in
   Section 6.4(c) of the Interstate Disclosure Schedule (the "Interstate
   Required Statutory Approvals", it being understood that references in this
   Agreement to "obtaining" such Interstate Required Statutory Approvals
   shall mean making such declarations, filings or registrations; giving such
   notices; obtaining such authorizations, consents or approvals; and having
   such waiting periods expire as are necessary to avoid a violation of law).

             (d)  Compliance. 

                  (i)  Except as set forth in Section 6.4(d), Section 6.10 or
        Section 6.11 of the Interstate Disclosure Schedule, or as disclosed
        in the Interstate SEC Reports (as hereinafter defined) filed prior to
        the date hereof, neither Interstate nor any of the Interstate
        Subsidiaries nor, to the knowledge of Interstate, any Interstate
        Joint Venture is in violation of, is under investigation with respect
        to any violation of, or has been given notice or been charged with
        any violation of, any law, statute, order, rule, regulation,
        ordinance or judgment (including, without limitation, any applicable
        environmental law, ordinance or regulation) of any Governmental
        Authority, except for violations which, in the aggregate do not, and
        insofar as reasonably can be foreseen, would not, have an Interstate
        Material Adverse Effect.

                 (ii)  Except as set forth in Section 6.4(d) or in
        Section 6.11 of the Interstate Disclosure Schedule, Interstate and
        the Interstate Subsidiaries and Interstate Joint Ventures have all
        Permits necessary to conduct their businesses as presently conducted,
        except those the failure of which to obtain, in the aggregate do not,
        and insofar as reasonably can be foreseen, would not, have an
        Interstate Material Adverse Effect. 

                (iii)  Except as set forth in Section 6.4(d) of the
        Interstate Disclosure Schedule, each of Interstate and the Interstate
        Subsidiaries and Interstate Joint Ventures is not in breach,
        violation or default in the performance or observance of any term or
        provision of, and no event has occurred which, with lapse of time or
        action by a third party, could result in a default under, 

                       (A) its Articles of Incorporation or By-laws, or

                       (B) any contract, commitment, agreement, indenture,
             mortgage, loan agreement, note, lease, bond, license, approval
             or other instrument to which it is a party or by which it is
             bound or to which any of its property is subject, except for
             breaches, violations or defaults which, in the aggregate do not,
             and insofar as can be reasonably foreseen, would not, have an

             Interstate Material Adverse Effect.

             Section 6.5  Reports and Financial Statements.  

             (a)  The filings required to be made by Interstate and the
   Interstate Subsidiaries since January 1, 1992 under the Securities Act,
   the Exchange Act, the Power Act, and applicable state laws and regulations
   have been filed with the SEC, the FERC, or any appropriate state public
   utilities commission, as the case may be, including all forms, statements,
   reports, agreements (oral or written) and all documents, exhibits,
   amendments and supplements appertaining thereto, and complied, as of their
   respective dates, in all material respects with all applicable
   requirements of the appropriate statute and the rules and regulations
   thereunder.  

             (b)  Interstate has made available to WPL and IES a true and
   complete copy of each form, report, schedule, registration statement and
   definitive proxy statement filed by Interstate with the SEC since January
   1, 1992 (as such documents have since the time of their filing been
   amended or supplemented, the "Interstate SEC Reports") and each other
   filing described in Section 6.5(a).  As of their respective dates, the
   Interstate SEC Reports did not contain any 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, in light of the circumstances
   under which they were made, not misleading.

             (c)  The audited consolidated financial statements and unaudited
   interim financial statements of Interstate included in the Interstate SEC
   Reports (collectively, the "Interstate Financial Statements") have been
   prepared in accordance with GAAP (except as may be indicated therein or in
   the notes thereto and except with respect to unaudited statements as
   permitted by Form 10-Q under the Exchange Act) and fairly present in all
   material respects the financial position of Interstate as of the dates
   thereof and the results of its operations and cash flows for the periods
   then ended, subject, in the case of the unaudited interim financial
   statements, to normal, recurring audit adjustments.  

             (d)  True, accurate and complete copies of the Restated Articles
   of Incorporation and By-laws of Interstate, as in effect on the date
   hereof, are included (or incorporated by reference) in the Interstate SEC
   Reports.

             Section 6.6  Absence of Certain Changes or Events. Except as
   disclosed in the Interstate SEC Reports filed prior to the date hereof or
   as set forth in Section 6.6 of the Interstate Disclosure Schedule, since
   December 31, 1994, Interstate and each of the Interstate Subsidiaries and
   Interstate Joint Ventures have conducted their businesses only in the
   ordinary course of their respective businesses consistent with past
   practice and there has not been, and no facts or conditions exist (other
   than facts or conditions of general applicability to electric utility
   companies in the region in which WPL, IES and Interstate operate) which,
   in the aggregate have or, insofar as reasonably can be foreseen, would
   have, an Interstate Material Adverse Effect.

             Section 6.7  Litigation.  Except as disclosed in the Interstate
   SEC Reports filed prior to the date hereof or as set forth in Section 6.7,
   Section 6.9 or Section 6.11 of the Interstate Disclosure Schedule, 

             (a) there are no claims, suits, actions or proceedings pending
        or, to the knowledge of Interstate, threatened, nor are there, to the
        knowledge of Interstate, any investigations or reviews pending or
        threatened against, relating to or affecting Interstate or any of the
        Interstate Subsidiaries and, to the knowledge of Interstate, the
        Interstate Joint Ventures; 

             (b) there have not been any developments since December 31, 1994
        with respect to such disclosed claims, suits, actions, proceedings,
        investigations or reviews; and 

             (c) there are no judgments, decrees, injunctions, rules or
        orders of any court, governmental department, commission, agency,
        instrumentality or authority or any arbitrator applicable to
        Interstate or any of the Interstate Subsidiaries and, to the
        knowledge of Interstate, the Interstate Joint Ventures,

   which, when taken together with any other nondisclosures of matters
   described in clauses (a), (b) and (c), have, or insofar as reasonably can
   be foreseen, would have, an Interstate Material Adverse Effect.

             Section 6.8  Registration Statement and Proxy Statement.  

             (a)  None of the information supplied or to be supplied by or on
   behalf of Interstate for inclusion or incorporation by reference in

                  (i)  the Registration Statement will, at the time the
        Registration Statement is filed with the SEC and at the time it
        becomes effective under the Securities Act, contain any untrue
        statement of a material fact or omit to state any material fact
        required to be stated therein or necessary to make the statements
        therein not misleading, and

                 (ii)  the Proxy Statement will, at the date mailed to
        shareholders and at the times of the meetings of shareholders to be
        held in connection with the Interstate Merger, contain any untrue
        statement of a material fact or omit to state any material fact
        required to be stated therein or necessary in order to make the
        statements therein, in light of the circumstances under which they
        are made, not misleading.

             (b)  The Registration Statement and the Proxy Statement will
   comply as to form in all material respects with the provisions of the
   Securities Act and the Exchange Act, respectively, and the applicable
   rules and regulations thereunder.

             Section 6.9  Tax Matters.  Except as set forth in Section 6.9 of
   the Interstate Disclosure Schedule:

             (a)  Filing of Timely Tax Returns.  Interstate and each of the
   Interstate Subsidiaries have filed (or there has been filed on its behalf)
   all Tax Returns required to be filed by each of them under applicable law. 
   All such Tax Returns were and are in all material respects true, complete
   and correct and filed on a timely basis.

             (b)  Payment of Taxes.  Interstate and each of the Interstate
   Subsidiaries have, within the time and in the manner prescribed by law,
   paid all Taxes that are currently due and payable except for those
   contested in good faith and for which adequate reserves have been taken.

             (c)  Tax Reserves.  Interstate and the Interstate Subsidiaries
   have established on their books and records reserves adequate to pay all
   Taxes and reserves for deferred income taxes in accordance with GAAP.

             (d)  Tax Liens.  There are no Tax liens upon the assets of
   Interstate or any of the Interstate Subsidiaries except liens for Taxes
   not yet due.

             (e)  Withholding Taxes.  Interstate and each of the Interstate
   Subsidiaries have complied in all material respects with the provisions of
   the Code relating to the withholding of Taxes, as well as similar
   provisions under any other laws, and have, within the time and in the
   manner prescribed by law, withheld from employee wages and paid over to
   the proper governmental authorities all amounts required.

             (f)  Extensions of Time for Filing Tax Returns.  Neither
   Interstate nor any of the Interstate Subsidiaries has requested any
   extension of time within which to file any Tax Return, which Tax Return

   has not since been timely filed.

             (g)  Waivers of Statute of Limitations.  Neither Interstate nor
   any of the Interstate Subsidiaries has executed any outstanding waivers or
   comparable consents regarding the application of the statute of
   limitations with respect to any Taxes or Tax Returns.

             (h)  Expiration of Statute of Limitations.  The statute of
   limitations for the assessment of all Taxes has expired for all applicable
   Tax Returns of Interstate and each of the Interstate Subsidiaries or those
   Tax Returns have been examined by the appropriate taxing authorities for
   all Tax periods ended before the date hereof, and no deficiency for any
   Taxes has been proposed, asserted or assessed against Interstate or any of
   the Interstate Subsidiaries that has not been resolved and paid in full.

             (i)  Audit, Administrative and Court Proceedings.  No audits or
   other administrative proceedings or court proceedings are presently
   pending with regard to any Taxes or Tax Returns of Interstate or any of
   the Interstate Subsidiaries.

             (j)  Powers of Attorney.  No power of attorney currently in
   force has been granted by Interstate or any of the Interstate Subsidiaries
   concerning any Tax matter.

             (k)  Tax Rulings.  Neither Interstate nor any of the Interstate
   Subsidiaries has received a Tax Ruling or entered into a Closing Agreement
   with any taxing authority that would have a continuing adverse effect
   after the Closing Date.

             (l)  Availability of Tax Returns.  Interstate has made available
   to WPL and IES complete and accurate copies covering the six years ended
   December 31, 1994 of (i) all Tax Returns, and any amendments thereto,
   filed by Interstate or any of the Interstate Subsidiaries, (ii) all audit
   reports received from any taxing authority relating to any Tax Return
   filed by Interstate or any of the Interstate Subsidiaries, and (iii) any
   Closing Agreements entered into by Interstate or any of the Interstate
   Subsidiaries with any taxing authority.

             (m)  Tax Sharing Agreements.  Neither Interstate nor any
   Interstate Subsidiary is a party to any agreement relating to allocating
   or sharing of Taxes.

             (n)  Code Section 280G.  Neither Interstate nor any of the
   Interstate Subsidiaries is a party to any agreement, contract, or
   arrangement that could result, on account of the transactions contemplated
   hereunder, separately or in the aggregate, in the payment of any "excess
   parachute payments" within the meaning of Section 280G of the Code.

             (o)  Liability for Others.  None of Interstate or any of the
   Interstate Subsidiaries has any liability for Taxes of any person other
   than Interstate and the Interstate Subsidiaries (i) under Treasury
   Regulations Section 1.1502-6 (or any similar provision of state, local or
   foreign law) as a transferee or successor, (ii) by contract, or
   (iii) otherwise.

             Section 6.10  Employee Matters; ERISA.  

             (a)  Benefit Plans.  Section 6.10(a) of the Interstate
   Disclosure Schedule contains a true and complete list of each employee
   benefit plan, program or arrangement covering employees, former employees
   or directors of Interstate and each of the Interstate Subsidiaries or
   their beneficiaries, or providing benefits to such persons in respect of
   services provided to any such entity, including, but not limited to,
   employee benefit plans within the meaning of Section 3(3) of ERISA and any
   severance or change in control agreement (collectively, the "Interstate
   Benefit Plans").  For the purposes of this Section 6.10 only, the term
   "Interstate" shall be deemed to include the predecessors of such company.

             (b)  Contributions.  Except as set forth in Section 6.10(b) of
   the Interstate Disclosure Schedule, all material contributions and other
   payments required to be made by Interstate or any of the Interstate
   Subsidiaries to any Interstate Benefit Plan (or to any person pursuant to
   the terms thereof) have been made or the amount of such payment or
   contribution obligation has been reflected in the Interstate Financial
   Statements.

             (c)  Qualification; Compliance.  Except as set forth in Section
   6.10(b) of the Interstate Disclosure Schedule, each of the Interstate
   Benefit Plans intended to be "qualified" within the meaning of
   Section 401(a) of the Code has been determined by the IRS to be so
   qualified, and, to the knowledge of Interstate, no circumstances exist
   that are reasonably expected by Interstate to result in the revocation of
   any such determination.  Interstate is in compliance in all respects with,
   and each of the Interstate Benefit Plans is and has been operated in all
   respects in compliance with, all applicable laws, rules and regulations
   governing each such plan, including, without limitation, ERISA and the
   Code except for any violations that, in the aggregate do not, and insofar
   as reasonably can be foreseen, would not, give rise to an Interstate
   Material Adverse Effect.  Each Interstate Benefit Plan intended to provide
   for the deferral of income, the reduction of salary or other compensation,
   or to afford other income tax benefits, complies in all material respects
   with the requirements of the applicable provisions of the Code or other
   laws, rules and regulations required to provide such income tax benefits.

             (d)  Liabilities.  With respect to the Interstate Benefit Plans,
   individually and in the aggregate, no event has occurred, and, to the
   knowledge of Interstate, there does not now exist any condition or set of
   circumstances that could subject Interstate or any of the Interstate
   Subsidiaries to any liability arising under the Code, ERISA or any other
   applicable law (including, without limitation, any liability of any kind
   whatsoever, whether direct or indirect, contingent, inchoate or otherwise
   to any such plan or the PBGC), or under any indemnity agreement to which
   Interstate is subject, which liability, excluding liability for PBGC
   premiums, benefit claims and funding obligations payable in the ordinary
   course, has, or insofar as reasonably can be foreseen, would have, an
   Interstate Material Adverse Effect.

             (e)  Welfare Plans.  Except as set forth in Section 6.10(e) of
   the Interstate Disclosure Schedule, none of the Interstate Benefit Plans
   that are "welfare plans" within the meaning of Section 3(1) of ERISA
   provides for any benefits payable to or on behalf of any employee or
   director after termination of employment or service, as the case may be,
   other than elective continuation coverage required to be provided under
   Section 4980B of the Code or Part 6 of Title I of ERISA or coverage which
   expires at the end of the calendar month following such event.

             (f)  Documents made Available.  Interstate has made available to
   WPL and IES a true and correct copy of each collective bargaining
   agreement to which Interstate or any of the Interstate Subsidiaries is a
   party or under which Interstate or any of the Interstate Subsidiaries has
   obligations and, with respect to each Interstate Benefit Plan, where
   applicable,

                  (i) such plan and summary plan description,

                  (ii) the most recent annual report filed with the IRS,

                  (iii) each related trust agreement, insurance contract,
        service provider or investment management agreement (including all
        amendments to each such document),

                  (iv) the most recent determination of the IRS with respect
        to the qualified status of such Interstate Benefit Plan, and

                  (v) the most recent actuarial report or valuation.

             (g)  Payments Resulting from Merger.  Except as set forth in
   Section 6.10(g) of the Interstate Disclosure Schedule:

                  (i)  The consummation or announcement of any transaction
        contemplated by this Agreement will not (either alone or upon the
        occurrence of any additional or further acts or events) result in any

                       (A) payment (whether of severance pay or otherwise)
             becoming due from Interstate or any of the Interstate
             Subsidiaries to any officer, employee, former employee or
             director thereof or to the trustee under any "rabbi trust" or
             similar arrangement that would not have been paid without regard
             to such consummation or announcement, or

                       (B) benefit under any Interstate Benefit Plan being
             established or becoming accelerated, vested or payable; and

                 (ii)  neither Interstate nor any of the Interstate
        Subsidiaries is a party to

                       (A) any management, employment, deferred compensation,
             severance (including any payment, right or benefit resulting
             from a change in control), bonus or other contract for personal
             services with any officer, director or employee,

                       (B) any consulting contract with any person who prior
             to entering into such contract was a director or officer of
             Interstate, or

                       (C) any material plan, agreement, arrangement or
             understanding similar to any of the foregoing.

             (h)  Labor Agreements.  Except as set forth in Section 6.10(h)
   of the Interstate Disclosure Schedule, as of the date hereof, neither
   Interstate nor any of the Interstate Subsidiaries is a party to any
   collective bargaining agreement or other labor agreement with any union or
   labor organization.  To the knowledge of Interstate, as of the date
   hereof, there is no current union representation question involving
   employees of Interstate or any of the Interstate Subsidiaries, nor does
   Interstate know of any activity or proceeding of any labor organization
   (or representative thereof) or employee group to organize any such
   employees.  Except as disclosed in the Interstate SEC Reports filed prior
   to the date hereof or in Section 6.10(h) of the Interstate Disclosure
   Schedule,

                  (i) there is no material unfair labor practice, employment
        discrimination or other complaint against Interstate or any of the
        Interstate Subsidiaries pending, or to the knowledge of Interstate,
        threatened, 

                  (ii) there is no strike, lockout or material dispute,
        slowdown or work stoppage pending, or to the knowledge of Interstate
        threatened, against or involving Interstate or any of the Interstate
        Subsidiaries, and

                  (iii) there is no material proceeding, claim, suit, action
        or governmental investigation pending or, to the knowledge of
        Interstate, threatened, in respect of which any director, officer,
        employee or agent of Interstate or any of the Interstate Subsidiaries
        is or may be entitled to claim indemnification from Interstate or
        such Interstate Subsidiary pursuant to their respective Articles of
        Incorporation or by-laws.

             Section 6.11  Environmental Protection.  Except as set forth in
   Section 6.11 of the Interstate Disclosure Schedule or in the Interstate
   SEC Reports filed prior to the date hereof:

             (a)  Compliance.  

                  (i)  Each of Interstate and the Interstate Subsidiaries and
        Interstate Joint Ventures is in compliance with all applicable
        Environmental Laws, except where the failure to be in compliance, in
        the aggregate does not, and insofar as reasonably can be foreseen,
        would not, have an Interstate Material Adverse Effect; and 

                 (ii)  neither Interstate nor any of the Interstate
        Subsidiaries and Interstate Joint Ventures has received any
        communication (written or oral) from any person or Governmental
        Authority that alleges that Interstate or any of the Interstate
        Subsidiaries and Interstate Joint Ventures is not in compliance, as
        required by clause (i) above, with applicable Environmental Laws.

             (b)  Environmental Permits.  Each of Interstate and the
   Interstate Subsidiaries has obtained all Environmental Permits necessary
   for the construction of their facilities and the conduct of their
   operations, as applicable, and all such Environmental Permits are in good
   standing or, where applicable, a renewal application has been timely filed
   and is pending agency approval, and Interstate and the Interstate
   Subsidiaries are in compliance with all terms and conditions of the
   Environmental Permits, except where the failure to be in such compliance,
   in the aggregate does not, and insofar as reasonably can be foreseen,
   would not, have an Interstate Material Adverse Effect.

             (c)  Environmental Claims.  There is no material Environmental
   Claim pending

                  (i) against Interstate or any of the Interstate
        Subsidiaries or Interstate Joint Ventures,

                  (ii) against any person or entity whose liability for any
        Environmental Claim Interstate or any of the Interstate Subsidiaries
        has or may have retained or assumed either contractually or by
        operation of law, or

                  (iii) against any real or personal property or operations
        which Interstate or any of the Interstate Subsidiaries owns, leases
        or manages, in whole or in part.

             (d)  Releases.  To the knowledge of Interstate, there has not
   been any material Releases of any Hazardous Material that would be
   reasonably likely to form the basis of any material Environmental Claim
   against Interstate or any of the Interstate Subsidiaries, or against any
   person or entity whose liability for any material Environmental Claim
   Interstate or any of the Interstate Subsidiaries has or may have retained
   or assumed either contractually or by operation of law.

             (e)  Predecessors.  To the knowledge of Interstate, with respect
   to any predecessor of Interstate or any of the Interstate Subsidiaries,
   there is no material Environmental Claim pending or threatened, and there
   has been no Release of Hazardous Materials that would be reasonably likely
   to form the basis of any material Environmental Claim.

             (f)  Disclosure.  To Interstate's knowledge, Interstate has
   disclosed to each of WPL and IES all material facts which Interstate
   reasonably believes form the basis of a material Environmental Claim
   arising from

                  (i) the cost of Interstate pollution control equipment
        currently required or known to be required in the future;

                  (ii) current Interstate remediation costs or Interstate
        remediation costs known to be required in the future; or

                  (iii) any other environmental matter affecting Interstate
        or the Interstate Subsidiaries or Interstate Joint Ventures.

             Section 6.12  Regulation as a Utility.  Interstate is regulated
   as a public utility in the States of Iowa, Illinois and Minnesota and in
   no other state.  Except as set forth in Section 6.12 of the Interstate
   Disclosure Schedule, no "subsidiary company" or "affiliate" of Interstate
   is subject to regulation as a public utility or public service company (or
   similar designation) by any other state in the United States or any
   foreign country.

             Section 6.13  Vote Required.  The approval by the holders of a
   majority of the outstanding shares of Interstate Common Stock (the
   "Interstate Shareholders' Approval") to approve the Interstate Merger is
   the only vote of the holders of any class or series of capital stock of
   Interstate required for any of the transactions required by this Agreement
   or the Stock Option Agreements to which Interstate is a party.  The
   approval by the holders of shares of Interstate Preferred Stock is not
   required to approve the Interstate Merger.

             Section 6.14  Accounting Matters.  Neither Interstate nor, to
   Interstate's knowledge, any of its Affiliates has taken or agreed to take
   any action that would prevent Interstate from accounting for the
   transactions to be effected pursuant to this Agreement as a pooling of
   interests in accordance with GAAP and applicable SEC regulations.  

             Section 6.15  Applicability of Certain Delaware Law, Etc. 
   Assuming the representations and warranties of WPL and IES made in
   Sections 4.18 and 5.18, respectively, are correct, none of the provisions
   of Section 203 of the DGCL, or any other takeover related provisions of
   the DGCL (or to the knowledge of Interstate, any other similar State
   statute) or the Restated Articles of Incorporation or By-laws of
   Interstate are applicable to the transactions contemplated by this
   Agreement, including the granting or exercise of the Interstate/WPL and
   Interstate/IES Stock Option Agreements (except as set forth in Section
   6.15 of the Interstate Disclosure Schedule. 

             Section 6.16  Opinion of Financial Advisor.  Interstate has
   received the opinion of Salomon Brothers Inc ("Salomon") dated November
   10, 1995, to the effect that, as of the date thereof, the consideration to
   be received by the holders of Interstate Common Stock in the Interstate
   Merger is fair from a financial point of view to the holders of Interstate
   Common Stock.

             Section 6.17  Insurance.  Except as set forth in Section 6.17 of
   the Interstate Disclosure Schedule, each of Interstate and the Interstate
   Subsidiaries is, and has been continuously since January 1, 1990, insured
   with financially responsible insurers in such amounts and against such
   risks and losses as are customary in all material respects for companies
   conducting the business conducted by Interstate and the Interstate
   Subsidiaries during such time period.  Except as set forth in Section 6.17
   of the Interstate Disclosure Schedule, neither Interstate nor any of the
   Interstate Subsidiaries has received any notice of cancellation or
   termination with respect to any material insurance policy of Interstate or
   any of the Interstate Subsidiaries.  The insurance policies of Interstate
   and each of the Interstate Subsidiaries are valid and enforceable policies
   in all material respects.

             Section 6.18  Ownership of WPL and IES Common Stock.  Except
   pursuant to the terms of the WPL/Interstate and IES/Interstate Stock
   Option Agreements, Interstate does not "beneficially own" (as such term is
   defined for purposes of Section 13(d) of the Exchange Act) any shares of
   WPL Common Stock or IES Common Stock.


                                   ARTICLE VII

                     CONDUCT OF BUSINESS PENDING THE MERGER

             Section 7.1  Covenants of the Parties.  After the date hereof
   and prior to the Effective Time or earlier termination of this Agreement,
   WPL, IES and Interstate each agree as set forth in this Article VII, each
   as to itself and to each of the WPL Subsidiaries, the IES Subsidiaries and
   the Interstate Subsidiaries, respectively, except as expressly
   contemplated or permitted in this Agreement, the Stock Option Agreements,
   or to the extent the other parties hereto shall otherwise consent in
   writing.

             Section 7.2  Ordinary Course of Business.  Each party hereto
   shall, and shall cause its Subsidiaries to, carry on their respective
   businesses in the usual, regular and ordinary course in substantially the
   same manner as heretofore conducted and use all commercially reasonable
   efforts to preserve intact their present business organizations and
   goodwill, preserve the goodwill and relationships with customers,
   suppliers and others having business dealings with them and, subject to
   prudent management of workforce needs and ongoing programs currently in
   force, keep available the services of their present officers and
   employees.  Except as set forth in Section 7.2 of the WPL Disclosure
   Schedule, the IES Disclosure Schedule or the Interstate Disclosure
   Schedule, respectively, no party shall, nor shall any party permit any of
   its Subsidiaries to, enter into a new line of business, or make any change
   in the line of business it engages in as of the date hereof involving any
   material investment of assets or resources or any material exposure to
   liability or loss, in the case of WPL, to WPL and its Subsidiaries taken
   as a whole, in the case of IES, to IES and its Subsidiaries taken as a
   whole, and in the case of Interstate, to Interstate and its Subsidiaries
   taken as a whole.

             Section 7.3    Dividends.  No party shall, nor shall any party
   permit any of its Subsidiaries to,

             (a)(i)  declare or pay any dividends on or make other
        distributions in respect of any of their capital stock other than 

                       (A)  to such party or its wholly-owned Subsidiaries,

                       (B)  dividends required to be paid on any IES
             Preferred Stock, Utilities Preferred Stock, WP&LC Preferred
             Stock or Interstate Preferred Stock in accordance with the
             respective terms thereof, and

                       (C)  regular quarterly dividends on IES Common Stock
             and Interstate Common Stock, with usual record and payment
             dates, during any fiscal year, which dividends shall not exceed
             100% of the prior year in the case of IES and 100% of the prior
             year in the case of Interstate, and 

                       (D)  regular quarterly dividends on WPL Common Stock,
             with usual record and payment dates, during any fiscal year,
             which dividends shall not exceed 105% of the dividends for the
             prior fiscal year; and 

                 (ii)  split, combine or reclassify any of their capital
        stock or issue or authorize or propose the issuance of any other
        securities in respect of, in lieu of, or in substitution for, shares
        of their capital stock; or 

                (iii)  redeem, repurchase or otherwise acquire any shares of
        their capital stock, other than 

                       (A) redemptions, purchases or acquisitions required by
             the respective terms of any series of IES Preferred Stock,
             Utilities Preferred Stock, WP&LC Preferred Stock, or Interstate
             Preferred Stock, 

                       (B) in connection with refunding of IES Preferred
             Stock, Utilities Preferred Stock, WP&LC Preferred Stock or
             Interstate Preferred Stock with preferred stock or debt at a
             lower cost of funds (calculating such cost on an after-tax
             basis), 

                       (C) in connection with intercompany purchases of
             capital stock,  

                       (D) for the purpose of funding employee stock
             ownership or dividend reinvestment and stock purchase plans in
             accordance with past practice, or 

                       (E) as set forth on Section 7.3(a)(iii) of the WPL
             Disclosure Schedule, IES Disclosure Schedule or Interstate
             Disclosure Schedule. 

             (b)  Each of WPL, IES, and Interstate shall declare a dividend
        on each share of its Common Stock to holders of record of such shares
        as of the close of business on the business day next preceding the
        Effective Time in an amount equal to the product of

                  (i) a fraction,

                       (A)  the numerator of which equals the number of days
             between the payment date with respect to the most recent regular
             dividend paid by WPL, IES, or Interstate, as the case may be,
             and the Effective Time, and

                       (B)  the denominator of which equals 91, and

                  (ii) the amount of the regular cash dividend most recently
        paid by WPL, IES or Interstate, as the case may be;

   provided, however, that if any one or more of WPL, IES or Interstate has
   declared a regular quarterly dividend on shares of its Common Stock with a
   payment date (the "Payment Date") after the Effective Time, then no
   dividend as provided for in this Section 7.3(b) shall be declared or paid
   with respect to such shares and the dividend of the other party or parties
   shall be calculated by substituting "Payment Date" for "Effective Time" in
   clause (i)(A) of this Section 7.3(b).

             (c)  Notwithstanding the foregoing, 

                  (i) WPL may redeem all or any portion of the WP&LC
        Preferred Stock if the Board of Directors of WPL in good faith
        determines such course of action will facilitate the transactions
        contemplated hereby,

                   (ii) IES may redeem all or any portion of the IES
        Preferred Stock or Utilities Preferred Stock if the IES Board of
        Directors in good faith determines such course of action will
        facilitate the transactions contemplated hereby, and 

                  (iii) Interstate may redeem all or any portion of the
        Interstate Preferred Stock, if the Interstate Board of Directors in
        good faith determines such course of action will facilitate the
        transactions contemplated hereby.

             Section 7.4    Issuance of Securities.  (a)  No party shall, nor
   shall any party permit any of its Subsidiaries to, issue, agree to issue,
   deliver, sell, award, pledge, dispose of or otherwise encumber or
   authorize or propose the issuance, delivery, sale, award, pledge, disposal
   or other encumbrance of, any shares of their capital stock of any class or
   any securities convertible into or exchangeable for, or any rights,
   warrants or options to acquire, any such shares or convertible or
   exchangeable securities, other than (w) pursuant to the Stock Option
   Agreements, (x) pursuant to the Benefit Plans relating to the WPL
   Subsidiaries listed in (and in amounts no greater than those set forth in)
   Section 7.4 of the WPL Disclosure Schedule, (y) issuances by a Subsidiary
   of a party hereto to the party that directly or indirectly controls such
   Subsidiary or to a wholly-owned Subsidiary of such party, and (z)
   issuances:

                  (i)  in the case of IES and the IES Subsidiaries

                       (A) in connection with refunding IES Preferred Stock
             or Utilities Preferred Stock with preferred stock or debt at a
             lower cost of funds (calculating such cost on an after-tax
             basis); and

                       (B) up to 450,000 shares of IES Common Stock to be
             issued for general corporate purposes, including issuances in
             connection with acquisitions and financing and issuances
             pursuant to employee benefit plans, stock option and other
             incentive compensation plans, directors plans and stock purchase
             plans; 

                       (C) issuances of IES Common Stock pursuant to IES
             dividend reinvestment plans; and

                       (D) issuances of securities pursuant to the IES Rights
             Agreement.

                 (ii)  in the case of WPL and the WPL Subsidiaries

                       (A) in connection with refunding of WP&LC Preferred
             Stock with preferred stock or debt at a lower cost of funds
             (calculating such cost on an after-tax basis); and

                       (B) up to 1 million shares of WPL Common Stock to be
             issued for general corporate purposes, including issuances in
             connection with acquisitions and financing and issuances
             pursuant to employee benefit plans, stock option and other
             incentive compensation plans, directors plans and stock purchase
             plans; 

                       (C) issuances of WPL Common Stock pursuant to WPL
             dividend reinvestment plans; and

                       (D) issuances of securities pursuant to the WPL Rights
             Agreement.

                (iii)  in the case of Interstate and the Interstate
        Subsidiaries

                       (A) in connection with refunding of Interstate
             Preferred Stock with preferred stock or debt at a lower cost of
             funds (calculating such cost on an after-tax basis); and

                       (B) up to 200,000 shares of Interstate Common Stock to
             be issued for general corporate purposes, including issuances in
             connection with acquisitions and financing and issuances
             pursuant to employee benefit plans, stock option and other
             incentive compensation plans, directors plans and stock purchase
             plans; and

                       (C) issuances of Interstate Common Stock
             pursuant to Interstate's dividend reinvestment plans.

             (b)  The parties shall promptly furnish to each other such
   information as may be reasonably requested including financial information
   and take such action as may be reasonably necessary and otherwise fully
   cooperate with each other in the preparation of any registration statement
   under the Securities Act and other documents necessary in connection with
   issuance of securities as contemplated by this Section 7.4, subject to
   obtaining customary indemnities.

             Section 7.5    Charter Documents.  Except as set forth in
   Section 7.5 of the WPL Disclosure Schedule, the IES Disclosure Schedule or
   the Interstate Disclosure Schedule, except as contemplated herein, no
   party shall amend or propose to amend its respective articles of
   incorporation, by-laws or regulations, or similar organic documents.

             Section 7.6    No Acquisitions.  Except as set forth in Section
   7.6 of the WPL Disclosure Schedule, the IES Disclosure Schedule or the
   Interstate Disclosure Schedule, other than acquisitions by a party and its
   Subsidiaries not in excess of $10 million in the case of WPL, $10 million
   in the case of IES and $5 million in the case of Interstate, over the
   amount budgeted or forecasted by each party for acquisition expenditures,
   as set forth in such Section 7.6 of the WPL Disclosure Schedule, the IES
   Disclosure Schedule or the Interstate Disclosure Schedule, singularly or
   in the aggregate, no party shall, nor shall any party permit any of its
   Subsidiaries to, acquire, or publicly propose to acquire, or agree to
   acquire, by merger or consolidation with, or by purchase or otherwise, a
   substantial equity interest in or a substantial portion of the assets of,
   any business or any corporation, partnership, association or other
   business organization or division thereof, nor shall any party acquire or
   agree to acquire a material amount of assets other than in the ordinary
   course of business consistent with past practice.

             Section 7.7    Capital Expenditures and Emission Allowances. 
   Except as set forth in Section 7.7 of the WPL Disclosure Schedule, the IES
   Disclosure Schedule or the Interstate Disclosure Schedule, or as required
   by law, no party shall, nor shall any party permit any of its Subsidiaries
   to, (i) make capital expenditures in excess of $50 million in the case of
   WPL, $80 million in the case of IES, and $16 million in the case of
   Interstate over the amount budgeted by each such party for capital
   expenditures as set forth in such Section 7.7 of the WPL Disclosure
   Schedule, the IES Disclosure Schedule or the Interstate Disclosure
   Schedule, or (ii) enter into written commitments for the purchase of
   sulfur dioxide emission allowances as provided for by the Clean Air Act
   Amendments of 1990, in excess (singularly or in the aggregate) of $1
   million in the case of WPL, $500,000 in the case of IES, and $250,000 in
   the case of Interstate.

             Section 7.8    No Dispositions.  Except as set forth in Section
   7.8 of the WPL Disclosure Schedule, the IES Disclosure Schedule or the
   Interstate Disclosure Schedule, other than dispositions by a party and its
   Subsidiaries of assets having a fair market value (singularly or in the
   aggregate) of less than $10 million in the case of WPL, $10 million in the
   case of IES, and $2 million in the case of Interstate, no party shall, nor
   shall any party permit any of its Subsidiaries to, sell, lease, license,
   encumber or otherwise dispose of, any of its assets, other than
   encumbrances or dispositions in the ordinary course of its business
   consistent with past practice.

             Section 7.9    Indebtedness.  Except as contemplated by this
   Agreement, no party shall, nor shall any party permit any of its
   Subsidiaries to, incur or guarantee any indebtedness (including any debt
   borrowed or guaranteed or otherwise assumed including, without limitation,
   the issuance of debt securities or warrants or rights to acquire debt) or
   enter into any "keep well" or other agreement to maintain any financial
   condition of another person or enter into any arrangement having the
   economic effect of any of the foregoing other than (i) short-term
   indebtedness in the ordinary course of business consistent with past
   practice (such as the issuance of commercial paper or the use of existing
   credit facilities); (ii) long-term indebtedness not aggregating more than
   $40 million in the case of WPL, $60 million in the case of IES, and $20
   million in the case of Interstate; (iii) arrangements between such party
   and its Subsidiaries or among its Subsidiaries; (iv) as set forth in
   Section 7.9 of the WPL Disclosure Schedule, the IES Disclosure Schedule or
   the Interstate Disclosure Schedule; (v) in connection with the refunding
   of existing indebtedness at a lower cost of funds; or (vi) in connection
   with the refunding of IES Preferred Stock, Utilities Preferred Stock,
   WP&LC Preferred Stock or Interstate Preferred Stock, as permitted in
   Section 7.3.

             Section 7.10   Compensation, Benefits.  Except as set forth in
   Section 7.10 of the WPL Disclosure Schedule, the IES Disclosure Schedule
   or the Interstate Disclosure Schedule, as may be required by applicable
   law or as contemplated by this Agreement, no party shall, nor shall any
   party permit any of its Subsidiaries to

             (a)  enter into, adopt or amend or increase the amount or
   accelerate the payment or vesting of any benefit or amount payable under,
   any employee benefit plan or other contract, agreement, commitment,
   arrangement, plan or policy maintained by, contributed to or entered into
   by such party or any of its Subsidiaries, or increase, or enter into any
   contract, agreement, commitment or arrangement to increase in any manner,
   the compensation or fringe benefits, or otherwise to extend, expand or
   enhance the engagement, employment or any related rights, of any director,
   officer or other employee of such party or any of its Subsidiaries, except
   for normal increases in the ordinary course of business consistent with
   past practice that, in the aggregate, do not result in a material increase
   in benefits or compensation expense to such party or any of its
   Subsidiaries, or 

            (b)  enter into or amend any employment, severance or special pay
   arrangement with respect to the termination of employment or other similar
   contract, agreement or arrangement with any director or officer or other
   employee, except as set forth in Section 7.10 of the WPL Disclosure
   Schedule, the IES Disclosure Schedule or the Interstate Disclosure
   Schedule or otherwise in the ordinary course of business consistent with
   past practice.

             Section 7.11   1935 Act.  Except as set forth in Section 7.11 of
   the WPL Disclosure Schedule, the IES Disclosure Schedule or the Interstate
   Disclosure Schedule, no party shall, nor shall any party permit any of its
   Subsidiaries to, except as required or contemplated by this Agreement,
   engage in any activities which would cause a change in its status, or that
   of its Subsidiaries, under the 1935 Act, or that would impair the ability
   of WPL to claim an exemption pursuant to its order under Section 3(a)(1)
   of the 1935 Act or that would impair the ability of IES to claim an
   exemption pursuant to its order under Section 3(a)(1) of the 1935 Act
   prior to the Effective Time, other than (i) the application to the SEC
   under the 1935 Act contemplated by this Agreement for approval to the
   extent required of the transactions contemplated hereby and (ii) the
   registration of the Company pursuant to the 1935 Act.

             Section 7.12   Transmission, Generation.  Except as required
   pursuant to tariffs on file with the FERC as of the date hereof, in the
   ordinary course of business consistent with past practice, or as set forth
   in Section 7.12 of the WPL Disclosure Schedule, the IES Disclosure
   Schedule or the Interstate Disclosure Schedule, no party shall, nor shall
   any party permit any of its Subsidiaries to, (i) commence construction of
   any additional generating, transmission or delivery capacity, or
   (ii) obligate itself to purchase or otherwise acquire, or to sell or
   otherwise dispose of, or to share, any additional generating, transmission
   or delivery capacity in an amount in excess of $30 million in the case of
   WPL, $80 million in the case of IES, and $16 million in the case of
   Interstate, except as set forth in the budgets or forecasts of WPL dated
   November 10, 1995, IES dated October 16, 1995 and Interstate dated
   February 27, 1995, respectively, which budgets or forecasts have been
   shared with each other party hereto .

             Section 7.13   Accounting.  Except as set forth in Section 7.13
   of the WPL Disclosure Schedule, the IES Disclosure Schedule or the
   Interstate Disclosure Schedule, no party shall, nor shall any party permit
   any of its Subsidiaries to, make any changes in their accounting methods,
   except as required by law, rule, regulation or GAAP.

             Section 7.14   Pooling.  No party shall, nor shall any party
   permit any of its Subsidiaries or, within the exercise of its best
   efforts, its Joint Ventures to, take any action which would, or would be
   reasonably likely to, prevent the Company from accounting for the
   transactions to be effected pursuant to this Agreement as a pooling of
   interests in accordance with GAAP and applicable SEC regulations, and each
   party hereto shall use all reasonable efforts to achieve such result
   (including taking such actions as may be necessary to cure any facts or
   circumstances that could prevent such transactions from qualifying for
   pooling-of-interests accounting treatment).

             Section 7.15   Tax-free Status.  No party shall, nor shall any
   party permit any of its Subsidiaries or, within the exercise of its best
   efforts, its Joint Ventures to, take any actions which would, or would be
   reasonably likely to, adversely affect the status of the Merger as a
   tax-free transaction (except as to dissenters' rights and fractional
   shares) under Section 368(a) of the Code, and each party hereto shall use
   all reasonable efforts to achieve such result.

             Section 7.16   Affiliate Transactions.  Except as set forth in
   Section 7.16 of the WPL Disclosure Schedule, the IES Disclosure Schedule
   or the Interstate Disclosure Schedule, no party shall, nor shall any party
   permit any of its Subsidiaries or, within the exercise of its best
   efforts, its Joint Ventures to, enter into any material agreement or
   arrangement with any of their respective Affiliates (other than
   wholly-owned Subsidiaries) on terms materially less favorable to such
   party than could reasonably be expected to have been obtained with an
   unaffiliated third party on an arm's-length basis.

             Section 7.17   Cooperation, Notification.  Each party shall, and
   shall cause its Subsidiaries and shall use its best efforts to cause, its
   Joint Ventures to 

             (a)  cause its appropriate representatives to confer on a
   regular and frequent basis with one or more representatives of each other
   party to discuss, subject to applicable law, material operational matters
   and the general status of its ongoing operations; 

             (b)  promptly notify each other party of any significant changes
   in its business, properties, assets, condition (financial or other),
   results of operations or prospects; 

             (c)  advise each other party of any change or event which has,
   had or, insofar as reasonably can be foreseen, is reasonably likely to
   result in, in the case of WPL, a WPL Material Adverse Effect, in the case
   of IES, an IES Material Adverse Effect, or in the case of Interstate, an
   Interstate Material Adverse Effect; and 

             (d)  promptly provide each other party with copies of all
   filings made by such party or any of its Subsidiaries with any state or
   Federal court, administrative agency, commission or other Governmental
   Authority in connection with this Agreement and the transactions
   contemplated hereby.

             Section 7.18   Third-party Consents.  

             (a)  WPL shall, and shall cause its Subsidiaries to, use all
   commercially reasonable efforts to obtain all WPL Required Consents.  WPL
   shall promptly notify IES and Interstate of any failure or prospective
   failure to obtain any such consents and, if requested by IES or
   Interstate, shall provide copies of all WPL Required Consents obtained by
   WPL to IES and Interstate. 

             (b)  IES shall, and shall cause its Subsidiaries to, use all
   commercially reasonable efforts to obtain all IES Required Consents.  IES
   shall promptly notify WPL and Interstate of any failure or prospective
   failure to obtain any such consents and, if requested by WPL or
   Interstate, shall provide copies of all IES Required Consents obtained by
   IES to WPL and Interstate.  

             (c)  Interstate shall, and shall cause its Subsidiaries to, use
   all commercially reasonable efforts to obtain all Interstate Required
   Consents.  Interstate shall promptly notify WPL and IES of any failure or
   prospective failure to obtain any such consents and, if requested by WPL
   or IES, shall provide copies of all Interstate Required Consents obtained
   by Interstate to WPL and IES.

             Section 7.19   No Breach.  No party shall, nor shall any party
   permit any of its Subsidiaries to, willfully take any action that would or
   is reasonably likely to result 

             (a)  in a material breach of any provision of this Agreement or
   the Stock Option Agreements, or 

             (b)  in any of its representations and warranties set forth in
   this Agreement or the Stock Option Agreements being untrue on and as of
   the Closing Date.

             Section 7.20   Tax-exempt Status.  No party shall, nor shall any
   party permit any Subsidiary to take any action that would be reasonably
   likely to jeopardize the qualification of WP&LC's, Utilities's or
   Interstate's outstanding revenue bonds which qualify on the date hereof
   under Section 142(a) of the Code as "exempt facility bonds" or as
   tax-exempt industrial development bonds under Section 103(b)(4) of the
   Internal Revenue Code of 1954, as amended, prior to the enactment of the
   Tax Reform Act of 1986.

             Section 7.21   Transition Steering Team.  As soon as practicable
   after the date hereof, the parties shall create a special transition
   steering team (the "Transition Team") reporting to Erroll B. Davis, Jr.
   ("Mr. Davis") which shall be chaired by Wayne H. Stoppelmoor ("Mr.
   Stoppelmoor") and include a designee of each of IES, WPL and Interstate. 
   The Transition Team shall develop recommendations concerning the future
   structure and operations of the Company after the Effective Time, subject
   to applicable law.

             Section 7.22   Company Actions.  IES, WPL and Interstate shall,
   and shall cause their respective Subsidiaries and shall use their best
   efforts to cause their respective Joint Ventures to, take only those
   actions, from the date hereof until the Effective Time, that are required,
   permitted or contemplated by this Agreement to be taken by any of them,
   including, without limitation, the declaration, filing or registration
   with, or notice to or authorization, consent or approval of, any
   Governmental Authority, as set forth in Section 7.22 of the WPL Disclosure
   Schedule, the IES Disclosure Schedule and the Interstate Disclosure
   Schedule, respectively.

             Section 7.23   Tax Matters.  Except as set forth in Section 7.23
   of the WPL Disclosure Schedule, the IES Disclosure Schedule or the
   Interstate Disclosure Schedule, no party shall make or rescind any
   material express or deemed election relating to taxes, settle or
   compromise any material claim, action, suit, litigation, proceeding,
   arbitration, investigation, audit or controversy relating to taxes, or
   change any of its methods of reporting income or deductions for Federal
   income tax purposes from those employed in the preparation of its Federal
   income tax return for the taxable year ending December 31, 1994, except as
   may be required by applicable law.

             Section 7.24   Discharge of Liabilities.  No party shall, nor
   shall any party permit its Subsidiaries to, pay, discharge or satisfy any
   material claims, liabilities or obligations (absolute, accrued, asserted
   or unasserted, contingent or otherwise), other than the payment, discharge
   or satisfaction, in the ordinary course of business consistent with past
   practice (which includes the payment of final and unappealable judgments)
   or in accordance with their terms, of liabilities reflected or reserved
   against in, or contemplated by, the most recent consolidated financial
   statements (or the notes thereto) of such party included in such party's
   reports filed with the SEC, or incurred in the ordinary course of business
   consistent with past practice.

             Section 7.25   Contracts.  No party shall, nor shall any party
   permit its Subsidiaries or, within the exercise of its best efforts, its
   Joint Ventures to, except in the ordinary course of business consistent
   with past practice, modify, amend, terminate, renew or fail to use
   reasonable business efforts to renew any material contract or agreement to
   which such party or any Subsidiary of such party is a party or waive,
   release or assign any material rights or claims.

             Section 7.26   Insurance.  Each party shall, and shall cause its
   Subsidiaries to, maintain with financially responsible insurance companies
   insurance coverage in such amounts and against such risks and losses as
   are customary for companies engaged in the electric and gas utility
   industry and employing methods of generating electric power and fuel
   sources similar to those methods employed and fuels used by such party or
   its Subsidiaries.

             Section 7.27    Permits.  Each party shall, and shall cause its
   Subsidiaries to, use reasonable efforts to maintain in effect all existing
   Permits pursuant to which such party or its Subsidiaries operate.


                                  ARTICLE VIII

                              ADDITIONAL AGREEMENTS

             Section 8.1  Access to Information.  

                  (a)  Upon reasonable notice, each party shall, and shall
   cause its Subsidiaries and, shall use its best efforts to cause, its Joint
   Ventures to, afford to the officers, directors, employees, accountants,
   counsel, investment bankers, financial advisors and other representatives
   of the other parties (collectively, "Representatives") reasonable access,
   during normal business hours throughout the period prior to the Effective
   Time, to all of its properties, books, contracts, commitments and records
   (including, but not limited to, Tax Returns) and, during such period, each
   party shall, and shall cause its Subsidiaries to, furnish promptly to the
   other parties 

                  (i)  access to each report, schedule and other document
        filed or received by it or any of its Subsidiaries and, within the
        exercise of its best efforts, its Joint Ventures pursuant to the
        requirements of Federal or state securities laws or filed with or
        sent to the SEC, the FERC, the NRC, the DOE, the Department of
        Justice, the Federal Trade Commission, the Iowa Utilities Board, the
        Public Service Commission of Wisconsin, the Illinois Commerce
        Commission, the Minnesota Public Utilities Commission or any other
        Federal or state regulatory agency or commission, and 

                 (ii)  access to all information concerning itself, its
        Subsidiaries and, within the exercise of its best efforts, its Joint
        Ventures, directors, officers and shareholders and such other matters
        as may be reasonably requested by any other party in connection with
        any filings, applications or approvals required or contemplated by
        this Agreement or for any other reason related to the transactions
        contemplated by this Agreement.  

                  (b)  Each party shall, and shall cause its Subsidiaries and
   Representatives, and shall use its best efforts to cause its Joint
   Ventures to, hold in strict confidence all documents and information
   concerning the others furnished to it in connection with the transactions
   contemplated by this Agreement in accordance with the Confidentiality
   Agreement, dated September 19, 1995, among WPL, IES and Interstate, as it
   may be amended from time to time (the "Confidentiality Agreement").

             Section 8.2  Joint Proxy Statement and Registration Statement.

             (a)  Preparation and Filing.  The parties will prepare and file
   with the SEC as soon as reasonably practicable after the date hereof the
   Registration Statement and the Proxy Statement (together, the "Joint
   Proxy/Registration Statement").  The parties hereto shall each use
   reasonable efforts to cause the Registration Statement to be declared
   effective under the Securities Act as promptly as practicable after such
   filing.  Each party hereto shall also take such action as may reasonably
   be required to cause the shares of WPL Common Stock issuable in connection
   with the Merger to be registered (or to obtain an exemption from
   registration) under applicable state "blue sky" or securities laws;
   provided, however, that no party shall be required to register or qualify
   as a foreign corporation or to take other action which would subject it to
   service of process in any jurisdiction where it will not be, following the
   Merger, so subject.  Each of the parties hereto shall furnish all
   information concerning itself which is required or customary for inclusion
   in the Joint Proxy/Registration Statement.  The parties shall use
   reasonable efforts to cause the shares of WPL Common Stock issuable in the
   Merger to be approved for listing on the NYSE subject only to official
   notice of issuance.  The information provided by any party hereto for use
   in the Joint Proxy/Registration Statement shall be true and correct in all
   material respects without omission of any material fact which is required
   to make such information not false or misleading.  No representation,
   covenant or agreement is made by any party hereto with respect to
   information supplied by any other party for inclusion in the Joint
   Proxy/Registration Statement.

             (b)  Letter of WPL's Accountants.  WPL shall use best efforts to
   cause to be delivered to IES and Interstate a letter of Arthur Andersen
   LLP, dated a date within two business days before the date of the Joint
   Proxy/Registration Statement, and addressed to IES and Interstate, in form
   and substance reasonably satisfactory to IES and Interstate, and customary
   in scope and substance for "cold comfort" letters delivered by independent
   public accountants in connection with registration statements on Form S-4.

             (c)  Letter of IES's Accountants.  IES shall use best efforts to
   cause to be delivered to WPL and Interstate a letter of Arthur Andersen
   LLP, dated a date within two business days before the date of the Joint
   Proxy/Registration Statement, and addressed to WPL and Interstate, in form
   and substance reasonably satisfactory to WPL and Interstate and customary
   in scope and substance for "cold comfort" letters delivered by independent
   public accountants in connection with registration statements on Form S-4.

             (d)  Letter of Interstate's Accountants.  Interstate shall use
   best efforts to cause to be delivered to WPL and IES a letter of Deloitte
   & Touche LLP, dated a date within two business days before the date of the
   Joint Proxy/Registration Statement, and addressed to WPL and IES, in form
   and substance reasonably satisfactory to WPL and IES and customary in
   scope and substance for "cold comfort" letters delivered by independent
   public accountants in connection with registration statements on Form S-4.

             (e)  Fairness Opinions.  It shall be a condition to the mailing
   of the Joint Proxy/Registration Statement to the shareholders of WPL, IES
   and Interstate that 

                  (i)  WPL shall have received an opinion from Merrill, dated
        the date of the Joint Proxy/Registration Statement, to the effect
        that, as of the date thereof, the IES Ratio and the Interstate Ratio
        are fair to WPL from a financial point of view, 

                 (ii)  IES shall have received an opinion from Morgan, dated
        the date of the Joint Proxy/Registration Statement, to the effect
        that, as of the date thereof, the IES Ratio, taking into account the
        Interstate Ratio, is fair from a financial point of view to the
        holders of IES Common Stock, and 

                (iii)  Interstate shall have received an opinion from
        Salomon, dated the date of the Joint Proxy/Registration Statement, to
        the effect that, as of the date thereof, the consideration to be
        received by the holders of Interstate Common Stock in the Interstate
        Merger is fair from a financial point of view to the holders of
        Interstate Common Stock.

             Section 8.3  Regulatory Matters.

             (a)  HSR Filings.  Each party hereto shall file or cause to be
   filed with the Federal Trade Commission and the Department of Justice any
   notifications required to be filed by itself or its respective "ultimate
   parent" company under the Hart-Scott-Rodino Antitrust Improvements Act of
   1976, as amended (the "HSR Act"), and the rules and regulations
   promulgated thereunder with respect to the transactions contemplated
   hereby.  Such parties will use all commercially reasonable efforts to make
   such filings within 200 days after the date hereof, and to respond
   promptly to any requests for additional information made by either of such
   agencies.

             (b)  Other Regulatory Approvals.  Each party hereto shall
   cooperate and use its best efforts to promptly prepare and file all
   necessary documentation, to effect all necessary applications, notices,
   petitions, filings and other documents, and to use all commercially
   reasonable efforts to obtain all necessary permits, consents, approvals
   and authorizations of all Governmental Authorities necessary or advisable
   to consummate the Merger, including, without limitation, the WPL Required
   Statutory Approvals, the IES Required Statutory Approvals and the
   Interstate Required Statutory Approvals.

             Section 8.4  Shareholder Approval.

             (a)  Approval of IES Shareholders.  Subject to the provisions of
   Section 8.4(d) and Section 8.4(e), IES shall, as soon as reasonably
   practicable after the date hereof 

                  (i)  take all steps necessary to duly call, give notice of,
        convene and hold a special meeting of its shareholders (the "IES
        Special Meeting") for the purpose of securing the IES Shareholders'
        Approval,

                 (ii)  distribute to its shareholders the Proxy Statement in
        accordance with applicable Federal and state law and with its
        Restated Articles of Incorporation and By-laws, 

                (iii)  subject to the fiduciary duties of its Board of
        Directors, recommend to its shareholders the approval of the IES
        Merger, this Agreement and the transactions contemplated hereby, and 

                 (iv)  cooperate and consult with WPL and Interstate with
        respect to each of the foregoing matters.

             (b)  Approval of WPL Shareholders.  Subject to the provisions of
   Section 8.4(d) and Section 8.4(e), WPL shall, as soon as reasonably
   practicable after the date hereof

                  (i)  take all steps necessary to duly call, give notice of,
        convene and hold a special meeting of its shareholders (the "WPL
        Special Meeting") for the purpose of securing the WPL Shareholders'
        Approval,

                 (ii)  distribute to its shareholders the Proxy Statement in
        accordance with applicable Federal and state law and with its
        Restated Articles of Incorporation and By-laws, 

                (iii)  subject to the fiduciary duties of its Board of
        Directors, recommend to its shareholders the approval of the Merger,
        this Agreement and the transactions contemplated hereby, and 

                 (iv)  cooperate and consult with IES and Interstate with
        respect to each of the foregoing matters.

             (c)  Approval of Interstate Shareholders.  Subject to the
   provisions of Section 8.4(d) and Section 8.4(e), Interstate shall, as soon
   as reasonably practicable after the date hereof 

                  (i)  take all steps necessary to duly call, give notice of,
        convene and hold a special meeting of its shareholders (the
        "Interstate Special Meeting") for the purpose of securing the
        Interstate Shareholders' Approval,

                 (ii)  distribute to its shareholders the Proxy Statement in
        accordance with applicable Federal and state law and with its
        Restated Certificate of Incorporation and By-laws, 

                (iii)  subject to the fiduciary duties of its Board of
        Directors, recommend to its shareholders the approval of the
        Interstate Merger, this Agreement and the transactions contemplated
        hereby, and 

                 (iv)  cooperate and consult with IES and WPL with respect to
        each of the foregoing matters.

             (d)  Meeting Date.  The IES Special Meeting, the WPL Special
   Meeting and the Interstate Special Meeting shall be held on such dates as
   WPL, IES and Interstate shall mutually determine.

             (e)  Fairness Opinions Not Withdrawn.  It shall be a condition
   to the obligation of WPL to hold the WPL Special Meeting that the opinion
   of Merrill, referred to in Section 8.2(e), shall not have been withdrawn,
   it shall be a condition to the obligation of IES to hold the IES Special
   Meeting that the opinion of Morgan, referred to in Section 8.2(e), shall
   not have been withdrawn, and it shall be a condition to the obligation of
   Interstate to hold the Interstate Special Meeting that the opinion of
   Salomon, referred to in Section 8.2(e), shall not have been withdrawn.

             Section 8.5  Director and Officer Indemnification.

             (a)  Indemnification.  To the extent, if any, not provided by an
   existing right of indemnification or other agreement or policy, from and
   after the Effective Time, the Company shall, to the fullest extent
   permitted by applicable law, indemnify, defend and hold harmless each
   person who is now, or has been at any time prior to the date hereof, or
   who becomes prior to the Effective Time, an officer, director or employee
   of any of the parties hereto or any Subsidiary (each an "Indemnified
   Party" and collectively, the "Indemnified Parties") against 

                  (i)  all losses, expenses (including reasonable attorney's
        fees and expenses), claims, damages or liabilities or, subject to the
        proviso of the next succeeding sentence, amounts paid in settlement,
        arising out of actions or omissions occurring at or prior to the
        Effective Time (and whether asserted or claimed prior to, at or after
        the Effective Time) that are, in whole or in part, based on or
        arising out of the fact that such person is or was a director,
        officer or employee of such party (the "Indemnified Liabilities"),
        and

                 (ii)  all Indemnified Liabilities to the extent that they
        are based on or arise out of or pertain to the transactions
        contemplated by this Agreement.

   In the event of any such loss, expense, claim, damage or liability
   (whether or not arising before the Effective Time), 

                       (A) the Company shall pay the reasonable fees and
             expenses of counsel selected by the Indemnified Parties, which
             counsel shall be reasonably satisfactory to the Company,
             promptly after statements therefor are received and otherwise
             advance to such Indemnified Party upon request reimbursement of
             documented expenses reasonably incurred, 

                       (B)  the Company will cooperate in the defense of any
             such matter, and

                       (C)  any determination required to be made with
             respect to whether an Indemnified Party's conduct complies with
             the standards set forth under Sections 180.0850 through 180.0859
             of the WBCL and the Restated Articles of Incorporation or
             By-laws of the Company (as the same shall be amended from time
             to time) shall be made by independent counsel mutually
             acceptable to the Company and the Indemnified Party; provided,
             however, that the Company shall not be liable for any settlement
             effected without its written consent (which consent shall not be
             unreasonably withheld).  

             The Indemnified Parties as a group may retain only one law firm
   with respect to each related matter except to the extent that there is, in
   the opinion of counsel to an Indemnified Party, under applicable standards
   of professional conduct, a conflict on any significant issue between
   positions of such Indemnified Party and any other Indemnified Party or
   Indemnified Parties.

             (b)  Insurance.  For a period of six years after the Effective
   Time, the Company shall cause to be maintained in effect policies of
   directors' and officers' liability insurance maintained by WPL, IES and
   Interstate for the benefit of those persons who are currently covered by
   such policies on terms no less favorable than the terms of such current
   insurance coverage; provided, however, that the Company shall not be
   required to expend in any year an amount in excess of 150% of the annual
   aggregate premiums currently paid by WPL, IES and Interstate for such
   insurance; and provided, further, that if the annual premiums of such
   insurance coverage exceed such amount, the Company shall be obligated to
   obtain a policy with the best coverage available, in the reasonable
   judgment of the Board of Directors of the Company, for a cost not
   exceeding such amount.

             (c)  Successors.  In the event the Company or any of its
   successors or assigns (i) consolidates with or merges into any other
   person and shall not be the continuing or surviving corporation or entity
   of such consolidation or merger, or (ii) transfers all or substantially
   all of its properties and assets to any person, then and in either such
   case, proper provisions shall be made so that the successors and assigns
   of the Company shall assume the obligations set forth in this Section 8.5.

             (d)  Survival of Indemnification.  To the fullest extent
   permitted by law, from and after the Effective Time, all rights to
   indemnification as of the date hereof in favor of the employees, agents,
   directors and officers of WPL, IES and Interstate and their respective
   Subsidiaries with respect to their activities as such prior to the
   Effective Time, as provided in their respective articles of incorporation
   and by-laws in effect on the date thereof, or otherwise in effect on the
   date hereof, shall survive the Merger and shall continue in full force and
   effect for a period of not less than six years from the Effective Time.

             (e)  Benefit.  The provisions of this Section 8.5 are intended
   to be for the benefit of, and shall be enforceable by, each Indemnified
   Party, his or her heirs and his or her representatives.

             Section 8.6  Disclosure Schedules.  On the date hereof, 
             (a)  IES has delivered to WPL and Interstate an IES Disclosure
   Schedule, accompanied by a certificate signed by the chief financial
   officer of IES stating the IES Disclosure Schedule is being delivered
   pursuant to this Section 8.6(a), 

             (b)  WPL has delivered to IES and Interstate a WPL Disclosure
   Schedule, accompanied by a certificate signed by the Vice President,
   Corporate Secretary and Treasurer of WPL stating the WPL Disclosure
   Schedule is being delivered pursuant to this Section 8.6(b), and 

             (c)  Interstate has delivered to WPL and IES an Interstate
   Disclosure Schedule, accompanied by a certificate signed by the principal
   financial officer of Interstate stating the Interstate Disclosure Schedule
   is being delivered pursuant to this Section 8.6(c).  

             (d)  The WPL Disclosure Schedule, the IES Disclosure Schedule
   and the Interstate Disclosure Schedule are collectively referred to herein
   as the "Disclosure Schedules."  

             (e)  The Disclosure Schedules constitute an integral part of
   this Agreement and modify the respective representations, warranties,
   covenants or agreements of the parties hereto contained herein to the
   extent that such representations, warranties, covenants or agreements
   expressly refer to the Disclosure Schedules.  Anything to the contrary
   contained herein or in the Disclosure Schedules notwithstanding, any and
   all statements, representations, warranties or disclosures set forth in
   the Disclosure Schedules shall be deemed to have been made on and as of
   the date hereof.

             Section 8.7  Public Announcements.  Subject to each party's
   disclosure obligations imposed by law, WPL, IES and Interstate will
   cooperate with each other in the development and distribution of all news
   releases and other public information disclosures with respect to this
   Agreement or any of the transactions contemplated hereby and shall not
   issue any public announcement or statement with respect hereto or thereto
   without the consent of the other parties (which consent shall not be
   unreasonably withheld).  

             Section 8.8  Rule 145 Affiliates.  Within 30 days before the
   Closing Date, WPL shall identify in a letter to IES and Interstate, IES
   shall identify in a letter to WPL and Interstate, and Interstate shall
   identify in a letter to WPL and IES, all persons who are, and to such
   person's knowledge who will be at the Closing Date, "affiliates" of WPL,
   IES and Interstate, respectively, as such term is used in Rule 145 under
   the Securities Act (or otherwise under applicable SEC accounting releases
   with respect to pooling-of-interests accounting treatment).  Each of WPL,
   IES and Interstate shall use all reasonable efforts to cause their
   respective affiliates (including any person who may be deemed to have
   become an affiliate after the date of the letter referred to in the prior
   sentence) to deliver to the Company on or prior to the Closing Date a
   written agreement substantially in the form attached as Exhibit 8.8(a)
   with respect to affiliates of WPL and Exhibit 8.8(b) with respect to
   affiliates of IES and Interstate (each, an "Affiliate Agreement").

             Section 8.9  Employee Agreements and Workforce Matters.

             (a)  Certain Employee Agreements.  Subject to Section 8.10,
   Section 8.14 and Section 8.15, the Company and its Subsidiaries shall
   honor, without modification, all contracts, agreements, collective
   bargaining agreements and commitments of the parties prior to the date
   hereof which apply to any current or former employee or current or former
   director of the parties hereto; provided, however, that this undertaking
   is not intended to prevent the Company from enforcing such contracts,
   agreements, collective bargaining agreements and commitments in accordance
   with their terms, including, without limitation, any reserved right to
   amend, modify, suspend, revoke or terminate any such contract, agreement,
   collective bargaining agreement or commitment.

             (b)  Workforce Matters.  

                  (i)  Subject to applicable collective bargaining
        agreements, for a period of three years following the Effective Time,
        any reductions in workforce in respect to employees of the Company
        (except as provided in subparagraph (ii) below) shall be made on a
        fair and equitable basis, in light of the circumstances and the
        objectives to be achieved, giving consideration to previous work
        history, job experience and qualifications, without regard to whether
        employment was with WPL or its Subsidiaries, IES or its Subsidiaries,
        or Interstate or its Subsidiaries, and any employees whose employment
        is terminated or jobs are eliminated by the Company or any of its
        Subsidiaries during such period shall be entitled to participate on a
        fair and equitable basis in the job opportunity and employment
        placement programs offered by the Company or any of its Subsidiaries. 
        Any workforce reductions carried out following the Effective Time by
        the Company and its Subsidiaries shall be done in accordance with all
        applicable collective bargaining agreements, and all laws and
        regulations governing the employment relationship and termination
        thereof including, without limitation, the Worker Adjustment and
        Retraining Notification Act and regulations promulgated thereunder,
        and any comparable state or local law.

             (ii)  During the three-year period ending on the third
        anniversary of the Closing Date, the overall employment levels of the
        Company in the greater Dubuque area as measured against such levels
        as of the Closing Date will not fall (for any reason whatsoever,
        including attrition of all types) below the following levels, 

                       (A)  prior to the first anniversary of the Closing
             Date, 90%, 

                       (B)  prior to the second anniversary of the Closing
             Date, 75%, and 

                       (C)  prior to the third anniversary of the Closing
             Date, 60%.

             Section 8.10  Employee Benefit Plans.  Subject to Section 7.10,
   each of the WPL Benefit Plans, the IES Benefit Plans and the Interstate
   Benefit Plans in effect at the date hereof shall be maintained in effect
   with respect to the employees or former employees of WPL and any of its
   Subsidiaries, IES and any of its Subsidiaries, and Interstate and any of
   its Subsidiaries, respectively, who are covered by any such Benefit Plan
   immediately prior to the Closing Date (the "Affiliated Employees") until
   the Company otherwise determines after the Effective Time; provided,
   however, that nothing herein contained shall limit any reserved right
   contained in any such WPL Benefit Plan, IES Benefit Plan or Interstate
   Benefit Plan, to amend, modify, suspend, revoke or terminate any such
   plan; provided, further, however, that the Company or its Subsidiaries
   shall provide to the Affiliated Employees for a period of not less than
   one year following the Effective Time benefits, other than with respect to
   plans referred to in Section 8.11, which are no less favorable in the
   aggregate than those provided under the WPL Benefit Plans, the IES Benefit
   Plans or the Interstate Benefit Plans, as the case may be.  Without
   limitation of the foregoing, each participant of any such WPL Benefit
   Plan, IES Benefit Plan or Interstate Benefit Plan shall receive credit for
   purposes of eligibility to participate, vesting, benefit accrual and
   eligibility to receive benefits under a benefit plan of the Company or any
   of its Subsidiaries or Affiliates for service credited for the
   corresponding purpose under such benefit plan; provided, however, that
   such crediting of service shall not operate to duplicate any benefit to
   any such participant or the funding for any such benefit.  Any person
   hired by the Company or any of its Subsidiaries after the Closing Date who
   was not employed by any party hereto or its Subsidiaries immediately prior
   to the Closing Date shall be eligible to participate in such benefit plans
   maintained, or contributed to, by the Company or the Subsidiary, division
   or operation by which such person is employed, provided that such person
   meets the eligibility requirements of the applicable plan.

             Section 8.11  Stock Option and Other Stock Plans.

             (a)  Amendment of Stock Plans and Agreements.  Prior to the
   Effective Time, IES shall amend its Stock Plan (as hereinafter defined)
   and each underlying award agreement to provide that (i) each outstanding
   option to purchase shares of IES Common Stock (a "IES Stock Option"),
   along with any tandem stock appreciation right, shall constitute an option
   to acquire shares of WPL Common Stock, on the same terms and conditions as
   were applicable under such IES Stock Option, based on the same number of
   shares of WPL Common Stock as the holder of such IES Stock Option would
   have been entitled to receive pursuant to the Merger in accordance with
   Article II had such holder exercised such option in full immediately prior
   to the Effective Time; provided, however, that the number of shares, the
   option price, and the terms and conditions of exercise of such option,
   shall be determined in a manner that preserves both (A) the aggregate gain
   (or loss) on the IES Stock Option immediately prior to the Effective Time
   and (B) the ratio of the exercise price per share of the IES Stock to the
   fair market value (determined immediately prior to Effective Time) per
   share subject to such option; and provided, further, that in the case of
   any option to which Section 421 of the Code applies by reason of its
   qualification under any of Sections 422-424 of the Code, the option price,
   the number of shares purchasable pursuant to such option and the terms and
   conditions of exercise of such option shall be determined in order to
   comply with Section 424(a) of the Code; and (ii) each other outstanding
   award under the IES Stock Plan (the "IES Stock Awards") shall constitute
   an award based upon the same number of shares of WPL Common Stock as the
   holder of such IES Stock Award would have been entitled to receive
   pursuant to the Merger in accordance with Article II had such holder been
   the absolute owner, immediately before the Effective Time, of the shares
   of IES Common Stock on which such IES Stock Award is based, and otherwise
   on the same terms and conditions as governed by such IES Stock Award
   immediately before the Effective Time.  At the Effective Time, the Company
   shall assume each stock award agreement relating to the IES Stock Plan, as
   amended as previously provided.  As soon as practicable after the
   Effective Time, the Company shall deliver to the holders of IES Stock
   Options and IES Stock Awards appropriate notices setting forth such
   holders' rights with respect to such options and awards after the
   Effective Time and each underlying stock award agreement, each as assumed
   by the Company.

             (b)  Company Action.  After the Effective Time, with respect to
   the IES Stock Plan, and any other plans under which the delivery of WPL
   Common Stock is required upon payment of benefits, grant of awards or
   exercise of options (the "Stock Plans"), the Company shall take all
   corporate action necessary or appropriate to

                  (i)  obtain shareholder approval with respect to such Stock
        Plan to the extent such approval is required for purposes of the Code
        or other applicable law, or to enable such Stock Plan to comply with
        Rule 16b-3 promulgated under the Exchange Act,

                 (ii)  reserve for issuance under such plan or otherwise
        provide a sufficient number of shares of WPL Common Stock for
        delivery upon payment of benefits, grant of awards or exercise of
        options under such Stock Plan, and

                (iii)  as soon as practicable after the Effective Time, file
        registration statements on Form S-3 or Form S-8, as the case may be
        (or any successor or other appropriate forms), with respect to the
        shares of WPL Common Stock subject to such Stock Plan to the extent
        such registration statement is required under applicable law, and the
        Company shall use its best efforts to maintain the effectiveness of
        such registration statements (and maintain the current status of the
        prospectuses contained therein) for so long as such benefits and
        grants remain payable and such options remain outstanding. 

   With respect to those individuals who subsequent to the Merger will be
   subject to the reporting requirements under Section 16(a) of the Exchange
   Act, the Company shall administer the Stock Plans, where applicable, in a
   manner that complies with Rule 16b-3 promulgated under the Exchange Act.

             Section 8.12  No Solicitations.  

             (a)  No party hereto shall, and each such party shall use its
   best efforts to cause its Subsidiaries not to, permit any of its
   Representatives, directly or indirectly initiate, solicit or encourage, or
   take any action to facilitate the making of any offer or proposal which
   constitutes or is reasonably likely to lead to, any Business Combination
   Proposal (as hereinafter defined), or, in the event of an unsolicited
   Business Combination Proposal, except to the extent required by their
   fiduciary duties under applicable law if so advised in a written opinion
   of outside counsel, engage in negotiations or provide any information or
   data to any person relating to any Business Combination Proposal.

             (b)  Each party hereto shall notify the other parties orally and
   in writing of any such inquiries, offers or proposals (including, without
   limitation, the terms and conditions of any such proposal and the identity
   of the person making it), within 24 hours of the receipt thereof, shall
   keep the other parties informed of the status and details of any such
   inquiry, offer or proposal, and shall give the other parties five days'
   advance notice of any agreement to be entered into with or any information
   to be supplied to any person making such inquiry, offer or proposal.  Each
   party hereto shall immediately cease and cause to be terminated all
   existing discussions and negotiations, if any, with any parties conducted
   heretofore with respect to any Business Combination Proposal.

             (c)  As used in this Section 8.12, "Business Combination
   Proposal" shall mean any tender or exchange offer, proposal for a merger,
   consolidation or other business combination involving any party to this
   Agreement or any of its material Subsidiaries, or any proposal or offer
   (in each case, whether or not in writing and whether or not delivered to
   the shareholders of a party generally) to acquire in any manner, directly
   or indirectly, a substantial equity interest in or a substantial portion
   of the assets of any party to this Agreement or any of its material
   Subsidiaries, other than pursuant to the transactions contemplated by this
   Agreement.

             (d)  Nothing contained herein shall prohibit a party from taking
   and disclosing to its shareholders a position contemplated by Rule
   14e-2(a) under the Exchange Act with respect to a Business Combination
   Proposal made by means of a tender offer.

             Section 8.13  Company Board of Directors.

             (a)  WPL's, IES's and Interstate's respective Boards of
   Directors will take such action as may be necessary to cause the number of
   directors comprising the full Board of Directors of the Company at the
   Effective Time to be fifteen (15) persons.  The directors shall be divided
   into three classes (hereafter referred to as "Class I," "Class II" and
   "Class III") of five directors each.  Class I directors shall be appointed
   for a term expiring at the first annual meeting of shareholders of the
   Company following the Effective Time, Class II directors shall be
   appointed for a term expiring at the second annual meeting of shareholders
   of the Company following the Effective Time, and Class III directors shall
   be appointed for a term expiring at the third annual meeting of
   shareholders of the Company following the Effective Time, and in each case
   until their respective successors have been duly elected and qualified. 
   Of the directors comprising Class I, two shall be designated by each of
   IES and WPL and one shall be designated by Interstate prior to the
   Effective Time.  Of the directors comprising Class II, two shall be
   designated by each of IES and WPL, and one shall be designated by
   Interstate prior to the Effective Time.  Class III directors shall consist
   of Lee Liu ("Mr. Liu"), Mr. Davis and Mr. Stoppelmoor as well as two
   additional directors, one director designated by each of IES and WPL prior
   to the Effective Time.  Directors designated by IES, WPL and Interstate
   (including their successors) are hereinafter sometimes referred to as the
   "IES Directors," "WPL Directors" and "Interstate Directors," respectively. 
   Notwithstanding the foregoing, if, prior to the Effective Time, any of
   such designees shall decline or be unable to serve, the respective party
   which designated such person shall designate another person to serve in
   such person's stead.  In addition, subject to the limitations set forth in
   Section 8.13(b), for a period commencing as of the Effective Time and
   expiring on the date of the third annual meeting of shareholders of the
   Company following the Effective Time, the IES, WPL and Interstate
   Directors (each as a separate group) shall be entitled to nominate those
   persons who will be eligible to be appointed, elected or re-elected as
   IES, WPL and Interstate Directors, respectively.  For purposes of this
   Agreement, Messrs. Liu, Davis and Stoppelmoor shall be deemed to have been
   designated by IES, WPL and Interstate, respectively.  WPL's, IES's and
   Interstate's respective Boards of Directors will also take such action as
   may be necessary to cause the Nominating, Audit and Compensation
   Committees of the Board of Directors of the Company at the Effective Time
   to consist proportionally (to the extent reasonably practicable) of
   designees of each of WPL, IES and Interstate.  

             (b)  For a period of five years following the Effective Time, no
   person who is an executive officer or employee of the Company or any of
   its Subsidiaries shall be eligible to serve as a director of the Company,
   except for Messrs. Liu, Davis and Stoppelmoor; provided, however, that if
   Mr. Davis is not then serving as Chief Executive Officer of the Company,
   the individual serving in such capacity shall be eligible to serve as a
   director of the Company.

             (c)  Meetings of the Board of Directors of the Company shall be
   reasonably rotated among the WPL, IES and Interstate cities for so long as
   separate utility headquarters exist in those cities.

             Section 8.14  Company Officers.  At the Effective Time, pursuant
   to the terms hereof and of the employment contracts referred to in Section
   8.15:

             (a)  Mr. Liu shall hold the position of Chairman of the Board of
   Directors and shall be entitled to serve in such capacity for a period of
   two years from the Effective Time, after which time he will retire as
   Chairman of the Board of Directors of the Company but he shall continue to
   be eligible to serve as a director.

             (b)  Mr. Davis shall hold the positions of Chief Executive
   Officer and President for a period of at least five years from the
   Effective Time.  When Mr. Liu no longer serves as Chairman of the Board of
   Directors, Mr. Davis shall be entitled to continue to serve in his
   capacity as Chief Executive Officer and President, and shall also serve as
   Chairman of the Board of Directors for at least the remainder of the five
   year term specified above.  Subject to the five-year term specified above,
   Mr. Davis shall be entitled to serve in all of the above-referenced
   capacities until his successor is elected or appointed and shall have
   qualified in accordance with the WBCL and the Restated Articles of
   Incorporation and By-laws of the Company (as the same shall be amended
   pursuant to Section 8.19).  In addition, Mr. Davis shall hold the
   positions of Chief Executive Officer of each of Utilities, WP&LC,
   Interstate and the Nonregulated Company (as hereinafter defined), and
   shall be entitled to serve in such capacities for a period of three years
   from the Effective Time and until his successor is duly elected or
   appointed and qualified in accordance with applicable charter documents
   and law.

             (c)  Mr. Stoppelmoor shall hold the position of Vice Chairman of
   the Board of Directors of the Company and shall be entitled to serve in
   such capacity for a period of two years after the Effective Time, after
   which time he shall retire as Vice Chairman, but he shall continue to be
   eligible to serve as a director.

             (d)  Mr. Michael R. Chase ("Mr. Chase") shall hold the position
   of President of Interstate and shall be entitled to serve in such capacity
   for a period of at least three years after the Effective Time.

             (e)  Mr. Blake O. Fisher ("Mr. Fisher") shall hold the position
   of President of Utilities and shall be entitled to serve in such capacity
   for a period of time subject to the discretion of its Chief Executive
   Officer.  After such time as Mr. Fisher ceases to be President of
   Utilities, Mr. Fisher shall assume responsibility for the Nonregulated
   Company, reporting to Mr. Davis.  In addition, Mr. Fisher shall be elected
   to the positions of Executive Vice President and Chief Financial Officer
   of the Company as of the Effective Time and shall be entitled to serve in
   such capacities until his successor is duly elected or appointed and
   qualified in accordance with the WBCL and the Restated Articles of
   Incorporation and By-laws of the Company (as the same shall be amended
   pursuant to Section 8.19).

             (f)  Mr. Lance W. Ahearn ("Mr. Ahearn") shall be appointed to
   the position of President and Chief Operating Officer of the Nonregulated
   Company as of the Effective Time.

             (g)  Subject to Section 8.14(h), if any of the foregoing persons
   is unable or unwilling to hold such offices for the periods set forth
   above, his successor shall be selected by the Board of Directors of the
   Company in accordance with its By-laws.

             (h)  For a period of five years following the Effective Time, a
   majority vote of the WPL Directors or the successors thereto shall, in
   addition to any other vote required by law, be required to appoint or
   elect any person other than Mr. Davis as Chief Executive Officer of the
   Company.

             Section 8.15  Employment Contracts.  WPL shall, as of or prior
   to the Effective Time, enter into employment contracts with each of
   Messrs. Liu, Davis, Stoppelmoor, Chase and Fisher in the forms set forth
   in Exhibit 8.15.1, 8.15.2, 8.15.3, 8.15.4 and 8.15.5, respectively.

             Section 8.16  Post-Merger Operations.  Following the Effective
   Time, the Company shall conduct its operations or take such action in
   accordance with the following:

             (a)  the Company shall maintain its headquarters in Madison,
   Wisconsin, but this location will be evaluated over time as future
   business needs dictate.

             (b)  during the three-year period following the Effective Time,
   Utilities, WP&LC, and Interstate shall maintain their separate corporate
   existences and shall maintain their headquarters in their present
   locations of Cedar Rapids, Iowa, Madison, Wisconsin and Dubuque, Iowa,
   respectively;

             (c)  immediately following the Effective Time, the Company shall
   cause the IES nonregulated holding company to merge with and into the WPL
   nonregulated holding company, with the WPL nonregulated holding company
   being the surviving corporation (the combined company is herein referred
   to as the "Nonregulated Company"); and

             (d)  during the five-year period following the Effective Time or
   for such shorter period as the following entities maintain their separate
   corporate existences, the Company shall use its best efforts to insure
   that the composition of the Board of Directors of each of Utilities, WP&LC
   and Interstate and Nonregulated Company will be identical to the
   composition of the Board of Directors of the Company.

             Section 8.17  Expenses.  Subject to Section 10.3, all costs and
   expenses incurred in connection with this Agreement and the transactions
   contemplated hereby shall be paid by the party incurring such expenses,
   except that those expenses incurred in connection with printing the Joint
   Proxy/Registration Statement, as well as the filing fee relating thereto,
   shall be shared by the parties in the following proportions: 43% by WPL,
   14% by Interstate and 43% by IES.

             Section 8.18  Further Assurances.  Each party will, and will
   cause its Subsidiaries and, will use its best efforts to cause its Joint
   Ventures to, execute such further documents and instruments and take such
   further actions as may reasonably be requested by the terms hereof.  The
   parties expressly acknowledge and agree that, although it is their current
   intention to effect a business combination among themselves in the form
   contemplated by this Agreement, it may be preferable to effectuate such a
   business combination by means of an alternative structure in light of the
   conditions set forth in Section 9.1(e), Section 9.2(e), Section 9.2(f),
   Section 9.3(e), Section 9.3(f), Section 9.4(e) and Section 9.4(f). 
   Accordingly, if the only conditions to the parties' obligations to
   consummate the Merger which are not satisfied or waived are receipt of any
   one or more of the WPL Required Consents, WPL Required Statutory
   Approvals, IES Required Consents, IES Required Statutory Approvals,
   Interstate Required Consents, Interstate Required Statutory Approvals or
   the opinions referred to in Sections 9.2(e), 9.3(e), and 9.4(e), and the
   adoption of an alternative structure (that otherwise substantially
   preserves for WPL, IES and Interstate the economic and other material
   benefits of the Merger) would result in such conditions being satisfied or
   waived, then the parties shall use their respective best efforts to effect
   a business combination among themselves by means of a mutually agreed upon
   structure other than the Merger that so preserves such benefits; provided
   that, prior to closing any such restructured transaction, all material
   third party and Governmental Authority declarations, filings,
   registrations, notices, authorizations, consents or approvals necessary to
   effect such alternative business combination shall have been obtained and
   all other conditions to the parties' obligations to consummate the Merger,
   as applied to such alternative business combination, shall have been
   satisfied or waived.

             Section 8.19  Charter and By-law Amendments.  Prior to the
   Closing, WPL shall cause its Articles of Incorporation and By-laws to be
   amended as contemplated in Section 8.19 of the WPL Disclosure Schedule.

             Section 8.20  IES Rights Agreement.  Prior to or at the time of
   the Closing, IES shall amend the IES Rights Agreement to cause it to
   terminate effective as of the Effective Time. 

                                   ARTICLE IX

                                   CONDITIONS

             Section 9.1  Conditions to each Party's Obligation to Effect the
   Merger.  The respective obligations of each party to effect the Merger
   shall be subject to the satisfaction on or prior to the Closing Date of
   the following conditions, except, to the extent permitted by applicable
   law, that such conditions may be waived in writing pursuant to Section
   10.5 by the joint action of the parties hereto:

             (a)  Shareholder Approvals.  The IES Shareholders' Approval, the
   Interstate Shareholders' Approval and the WPL Shareholders' Approval shall
   have been obtained.

             (b)  No Injunction.  No temporary restraining order or
   preliminary or permanent injunction or other order by any Federal or state
   court preventing consummation of the Merger (including either or both of
   the IES Merger and the Interstate Merger) shall have been issued and be
   continuing in effect, and the Merger (including either or both of the IES
   Merger and the Interstate Merger) and the other transactions contemplated
   hereby shall not have been prohibited under any applicable Federal or
   state law or regulation.

             (c)  Registration Statement.  The Registration Statement shall
   have become effective in accordance with the provisions of the Securities
   Act, and no stop order suspending such effectiveness shall have been
   issued and remain in effect.

             (d)  Listing of Shares.  The shares of WPL Common Stock issuable
   in the Merger pursuant to Article II shall have been approved for listing
   on the NYSE subject only to official notice of issuance.

             (e)  Statutory Approvals.  

                  (i)  The WPL Required Statutory Approvals, the IES Required
        Statutory Approvals and the Interstate Required Statutory Approvals
        shall have been obtained at or prior to the Effective Time, such
        approvals shall have become Final Orders (as hereinafter defined) and
        such Final Orders shall not impose terms or conditions which, in the
        aggregate have, or insofar as reasonably can be foreseen, would have,
        a material adverse effect on the business, assets, financial
        condition or results of operations or prospects of the Company or
        which would be materially inconsistent with the agreements of the
        parties contained herein.  

                 (ii)  As used in this Agreement, "Final Order" means action
        by the relevant regulatory authority which has not been reversed,
        stayed, enjoined, set aside, annulled or suspended, with respect to
        which any waiting period prescribed by law before the transactions
        contemplated hereby may be consummated has expired, and as to which
        all conditions to the consummation of such transactions prescribed by
        law, regulation or order have been satisfied.

             (f)  Pooling.  Each of WPL, IES and Interstate shall have
   received a letter of its independent public accountants, dated the Closing
   Date, in form and substance reasonably satisfactory, in each case, to WPL,
   IES and Interstate, stating that the transactions effected pursuant to
   this Agreement will qualify as a pooling of interests transaction pursuant
   to GAAP and applicable SEC regulations.

             Section 9.2  Further Conditions to Obligation of IES to Effect
   the IES Merger.  The obligation of IES to effect the IES Merger shall be
   further subject to the satisfaction, on or prior to the Closing Date, of
   the following conditions, except as may be waived by IES in writing
   pursuant to Section 10.5:

             (a)  Performance of Obligations.  WPL (and/or its appropriate
   Subsidiaries) and Interstate (and/or its appropriate Subsidiaries) will
   have performed their agreements and covenants contained in Sections
   7.3 and 7.4 and will have performed in all material respects their other
   agreements and covenants contained in or contemplated by this Agreement,
   and the WPL/IES and Interstate/IES Stock Option Agreements required to be
   performed by each of them at or prior to the Effective Time.

             (b)  Representations and Warranties.  The representations and
   warranties of WPL and Interstate set forth in this Agreement shall be true
   and correct (i) on and as of the date hereof and (ii) on and as of the
   Closing Date with the same effect as though such representations and
   warranties had been made on and as of the Closing Date (except for
   representations and warranties that expressly speak only as of a specific
   date or time other than the date hereof or the Closing Date which need
   only be true and correct as of such date or time) except in each of cases
   (i) and (ii) for such failures of representations or warranties to be true
   and correct (without regard to any materiality qualifications contained
   therein) which, individually or in the aggregate do not, and insofar as
   reasonably can be foreseen, would not, result in a WPL Material Adverse
   Effect or an Interstate Material Adverse Effect, as the case may be.

             (c)  Closing Certificates.  IES shall have received a
   certificate signed by the chief financial officer of each of  WPL and
   Interstate, dated the Closing Date, to the effect that, to such officer's
   knowledge, the conditions set forth in Section 9.2(a) and Section 9.2(b)
   with respect to WPL or Interstate, as the case may be, have been
   satisfied.

             (d)  Material Adverse Effect.  No WPL Material Adverse Effect or
   Interstate Material Adverse Effect shall have occurred, and there shall
   exist no facts or conditions (other than facts or conditions of general
   applicability to electric utility companies in the region in which WPL,
   IES and Interstate conduct their utility operations) which have, or
   insofar as reasonably can be foreseen, would have a WPL Material Adverse
   Effect or an Interstate Material Adverse Effect, as the case may be.

             (e)  Tax Opinions.  

                  (i) IES shall have received an opinion of Winthrop,
        Stimson, Putnam & Roberts dated as of the Closing Date, to the effect
        that the IES Merger will be treated as a tax-free reorganization
        under Section 368(a) of the Code, and 

                  (ii)  IES and Winthrop, Stimson, Putnam & Roberts shall
        have had the opportunity to review the tax opinions of Interstate's
        and WPL's special tax counsel received pursuant to Sections 9.3(e)(i)
        and 9.4(e)(i), respectively, including the representations, covenants
        or other matters in reliance on which the opinions are being
        rendered, and shall be reasonably satisfied with the completeness and
        accuracy of said opinions.

             (f)  Required Consents.  The WPL Required Consents and the
   Interstate Required Consents, the failure of which to obtain would have a
   WPL Material Adverse Effect or an Interstate Material Adverse Effect,
   shall have been obtained. 

             (g)  Affiliate Agreements.  WPL shall have received Affiliate
   Agreements, duly executed by each Affiliate of WPL and Interstate,
   substantially in the form of Exhibit 8.8(a) or 8.8(b), as provided in
   Section 8.8.

             Section 9.3  Further Conditions to Obligation of Interstate to
   Effect the Interstate Merger.  The obligation of Interstate to effect the
   Interstate Merger shall be further subject to the satisfaction, on or
   prior to the Closing Date, of the following conditions, except as may be
   waived by Interstate in writing pursuant to Section 10.5:

             (a)  Performance of Obligations.  IES (and/or its appropriate
   Subsidiaries) and WPL (and/or its appropriate Subsidiaries) will have
   performed their agreements and covenants contained in Sections 7.3 and 7.4
   and will have performed in all material respects their other agreements
   and covenants contained in or contemplated by this Agreement and the
   IES/Interstate and WPL/Interstate Stock Option Agreement required to be
   performed by each of them at or prior to the Effective Time.

             (b)  Representations and Warranties.  The representations and
   warranties of IES and WPL set forth in this Agreement shall be true and
   correct (i) on and as of the date hereof and (ii) on and as of the Closing
   Date with the same effect as though such representations and warranties
   had been made on and as of the Closing Date (except for representations
   and warranties that expressly speak only as of a specific date or time
   other than the date hereof or the Closing Date which need only be true and
   correct as of such date or time) except in each of cases (i) and (ii) for
   such failures of representations or warranties to be true and correct
   (without regard to any materiality qualifications contained therein)
   which, individually or in the aggregate do not, and insofar as reasonably
   can be foreseen, would not, result in an IES Material Adverse Effect or a
   WPL Material Adverse Effect, as the case may be.

             (c)  Closing Certificates.  Interstate shall have received a
   certificate signed by the chief financial officer of each of  IES and WPL,
   dated the Closing Date, to the effect that, to such officer's knowledge,
   the conditions set forth in Section 9.3(a) and Section 9.3(b) with respect
   to WPL or IES, as the case may be, have been satisfied.

             (d)  Material Adverse Effect.  No IES Material Adverse Effect or
   WPL Material Adverse Effect shall have occurred, and there shall exist no
   facts or conditions (other than facts or conditions of general
   applicability to electric utility companies in the region in which WPL,
   IES and Interstate conduct their utility operations) which have, or
   insofar as reasonably can be foreseen, would have an IES Material Adverse
   Effect or a WPL Material Adverse Effect, as the case may be.

             (e)  Tax Opinions.  

                  (i)  Interstate shall have received an opinion of Milbank,
        Tweed, Hadley & McCloy dated as of the Closing Date, to the effect
        that the Interstate Merger will be treated as a tax-free
        reorganization under Section 368(a) of the Code; and 

                  (ii)  Interstate and Milbank, Tweed, Hadley & McCloy shall
        have had the opportunity to review the tax opinions of IES's and
        WPL's special tax counsel received pursuant to Sections 9.2(e)(i) and
        9.4(e)(i), respectively, including the representations, covenants or
        other matters in reliance on which the opinions are being rendered,
        and shall be reasonably satisfied with the completeness and accuracy
        of said opinions.

             (f)  Required Consents.  The IES Required Consents and the WPL
   Required Consents, the failure of which to obtain would have an IES
   Material Adverse Effect or a WPL Material Adverse Effect, shall have been
   obtained.

             (g)  Affiliate Agreements.  WPL shall have received Affiliate
   Agreements, duly executed by each Affiliate of IES and WPL, substantially
   in the form of Exhibit 8.8(a) and 8.8(b), as provided in Section 8.8.

             Section 9.4  Further Conditions to Obligation of WPL to Effect
   the Merger.  The obligation of WPL to effect the Merger shall be further
   subject to the satisfaction, on or prior to the Closing Date, of the
   following conditions, except as may be waived by WPL in writing pursuant
   to Section 10.5:

             (a)  Performance of Obligations.  IES (and/or its appropriate
   Subsidiaries) and Interstate (and/or its appropriate Subsidiaries) will
   have performed their agreements and covenants contained in Sections
   7.3 and 7.4 and will have performed in all material respects their other
   agreements and covenants contained in or contemplated by this Agreement
   and the IES/WPL and Interstate/WPL Stock Option Agreements required to be
   performed by it at or prior to the Effective Time.

             (b)  Representations and Warranties.  The representations and
   warranties of IES and Interstate set forth in this Agreement shall be true
   and correct (i) on and as of the date hereof and (ii) on and as of the
   Closing Date with the same effect as though such representations and
   warranties had been made on and as of the Closing Date (except for
   representations and warranties that expressly speak only as of a specific
   date or time other than the date hereof or the Closing Date which need
   only be true and correct as of such date or time) except in each of cases
   (i) and (ii) for such failures of representations or warranties to be true
   and correct (without regard to any materiality qualifications contained
   therein) which, individually or in the aggregate do not, and insofar as
   reasonably can be foreseen, would not, result in an IES Material Adverse
   Effect or an Interstate Material Adverse Effect, as the case may be.

             (c)  Closing Certificates.  WPL shall have received a
   certificate signed by the chief financial officer of each of IES and
   Interstate, dated the Closing Date, to the effect that, to such officer's
   knowledge, the conditions set forth in Section 9.4(a) and Section 9.4(b)
   with respect to IES or Interstate, as the case may be, have been
   satisfied.

             (d)  Material Adverse Effect.  No IES Material Adverse Effect or
   Interstate Material Adverse Effect shall have occurred, and there shall
   exist no facts or conditions (other than facts or conditions of general
   applicability to electric utility companies in the region in which WPL,
   IES and Interstate conduct their utility operations) which have, or
   insofar as reasonably can be foreseen, would have an IES Material Adverse
   Effect or an Interstate Material Adverse Effect, as the case may be.

             (e)  Tax Opinions.  

                  (i)  WPL shall have received an opinion of Foley & Lardner
        dated as of the Closing Date, to the effect that the Merger will be
        treated as a tax-free reorganization under Section 368(a) of the
        Code; and 

                  (ii)  WPL and Foley & Lardner shall have had the
        opportunity to review the tax opinions of IES's and Interstate's
        special tax counsel, as set forth in Sections 9.2(e)(i) and
        9.3(e)(i), respectively, including the representations, covenants or
        other matters in reliance on which the opinions are being rendered,
        and shall be reasonably satisfied with the completeness and accuracy
        of said opinions.

             (f)  Required Consents.  The IES Required Consents and the
   Interstate Required Consents, the failure of which to obtain would have an
   IES Material Adverse Effect or an Interstate Material Adverse Effect,
   shall have been obtained.

             (g)  Affiliate Agreements.  WPL shall have received Affiliate
   Agreements, duly executed by each Affiliate of IES and Interstate,
   substantially in the form of Exhibit 8.8(b), as provided in Section 8.8.


                                    ARTICLE X

                        TERMINATION, AMENDMENT AND WAIVER

             Section 10.1  Termination.  This Agreement may be terminated at
   any time prior to the Closing Date, whether before or after approval by
   the shareholders of the respective parties hereto contemplated by this
   Agreement:

             (a)  by mutual written consent of WPL, IES and Interstate;

             (b)  by any party hereto, by written notice to the other
   parties, if the Effective Time shall not have occurred on or before May
   10, 1997 (the "Initial Termination Date"); provided, however, that the
   right to terminate the Agreement under this Section 10.1(b) shall not be
   available to any party whose failure to fulfill any obligation under this
   Agreement has been the cause of, or resulted in, the failure of the
   Effective Time to occur on or before the Initial Termination Date; and
   provided, further, that if on the Initial Termination Date the conditions
   to the Closing set forth in Sections 9.1(e), 9.2(f), 9.3(f) and/or 9.4(f)
   shall not have been fulfilled but all other conditions to the Closing
   shall be fulfilled or shall be capable of being fulfilled, then the
   Initial Termination Date shall be extended to May 10, 1998;

             (c)  by any party hereto, by written notice to the other
   parties, if 

                  (i)  the WPL Shareholders' Approval shall not have been
        obtained at a duly held WPL Special Meeting, including any
        adjournments thereof, or 

                 (ii)  the IES Shareholders' Approval shall not have been
        obtained at a duly held IES Special Meeting, including any
        adjournments thereof, or

                (iii)  the Interstate Shareholders' Approval shall not have
        been obtained at a duly held Interstate Special Meeting, including
        any adjournments thereof;

             (d)  by any party hereto, if any state or Federal law, order,
   rule or regulation is adopted or issued, which has the effect, as
   supported by the written opinion of outside counsel for such party, of
   prohibiting the Merger (including either or both the IES Merger and the
   Interstate Merger), or by any party hereto if any court of competent
   jurisdiction in the United States or any State shall have issued an order,
   judgment or decree permanently restraining, enjoining or otherwise
   prohibiting the Merger (including either or both the IES Merger and the
   Interstate Merger), and such order, judgment or decree shall have become
   final and nonappealable;

             (e)  by IES, upon two days' prior notice to WPL and Interstate,
   if, as a result of a tender offer by a party other than WPL or Interstate
   or any of their respective Affiliates or any written offer or proposal
   with respect to a merger, sale of a material portion of its assets or
   other business combination (each, a "Business Combination") by a party
   other than WPL or Interstate or any of their respective Affiliates, the
   Board of Directors of IES determines in good faith that its fiduciary
   obligations under applicable law require that such tender offer or other
   written offer or proposal be accepted; provided, however, that 

                  (i) the Board of Directors of IES shall have been advised
        in a written opinion of outside counsel that notwithstanding a
        binding commitment to consummate an agreement of the nature of this
        Agreement entered into in the proper exercise of its applicable
        fiduciary duties, and notwithstanding all concessions which may be
        offered by WPL and Interstate in negotiations entered into pursuant
        to clause (ii) below, such fiduciary duties would require the
        directors to reconsider such commitment as a result of such tender
        offer or other written offer or proposal; and

                  (ii) prior to any such termination, IES shall, and shall
        cause its respective financial and legal advisors to, negotiate with
        WPL and Interstate to make such adjustments in the terms and
        conditions of this Agreement as would enable IES to proceed with the
        transactions contemplated herein on such adjusted terms;

             (f)  by Interstate, upon two days' prior notice to WPL and IES,
   if, as a result of a tender offer by a party other than WPL or IES or any
   of their respective Affiliates or any written offer or proposal with
   respect to a Business Combination by a party other than WPL or IES or any
   of their respective Affiliates, the Board of Directors of Interstate
   determines in good faith that its fiduciary obligations under applicable
   law require that such tender offer or other written offer or proposal be
   accepted; provided, however, that

                  (i) the Board of Directors of Interstate shall have been
        advised in a written opinion of outside counsel that notwithstanding
        a binding commitment to consummate an agreement of the nature of this
        Agreement entered into in the proper exercise of its applicable
        fiduciary duties, and notwithstanding all concessions which may be
        offered by WPL and IES in negotiations entered into pursuant to
        clause (ii) below, such fiduciary duties would require the directors
        to reconsider such commitment as a result of such tender offer or
        other written offer or proposal; and

                  (ii) prior to any such termination, Interstate shall, and
        shall cause its respective financial and legal advisors to, negotiate
        with WPL and IES to make such adjustments in the terms and conditions
        of this Agreement as would enable Interstate to proceed with the
        transactions contemplated herein on such adjusted terms;

             (g)  by WPL, upon two days' prior notice to IES and Interstate,
   if, as a result of a tender offer by a party other than IES or Interstate
   or any of their respective Affiliates or any written offer or proposal
   with respect to a Business Combination by a party other than IES or
   Interstate or any of their respective Affiliates, the Board of Directors
   of WPL determines in good faith that its fiduciary obligations under
   applicable law require that such tender offer or other written offer or
   proposal be accepted; provided, however, that 

                  (i) the Board of Directors of WPL shall have been advised
        in a written opinion of outside counsel that notwithstanding a
        binding commitment to consummate an agreement of the nature of this
        Agreement entered into in the proper exercise of its applicable
        fiduciary duties, and notwithstanding all concessions which may be
        offered by IES and Interstate in negotiations entered into pursuant
        to clause (ii) below, such fiduciary duties would require the
        directors to reconsider such commitment as a result of such tender
        offer or other written offer or proposal; and 

                  (ii) prior to any such termination, WPL shall, and shall
        cause its respective financial and legal advisors to, negotiate with
        IES and Interstate to make such adjustments in the terms and
        conditions of this Agreement as would enable WPL to proceed with the
        transactions contemplated herein on such adjusted terms;

             (h)  by IES, by written notice to WPL and Interstate, if

                 (i)  there exists any breach or breaches of the
        representations and warranties of WPL or Interstate made herein or in
        any of the Stock Option Agreements pursuant to which either of them
        is a grantor of options, which breaches, individually or in the
        aggregate have or, insofar as reasonably can be foreseen, would have,
        a WPL Material Adverse Effect or an Interstate Material Adverse
        Effect, and such breaches shall not have been remedied within 20 days
        after receipt by WPL or Interstate, as the case may be, of notice in
        writing from IES, specifying the nature of such breaches and
        requesting that they be remedied;

                (ii)  WPL or Interstate (and/or its appropriate Subsidiaries)
        shall not have performed and complied with its agreements and
        covenants contained in Sections 7.3 and 7.4 or shall have failed to
        perform and comply with, in all material respects, their other
        agreements and covenants hereunder or under the Stock Option
        Agreements and such failure to perform or comply shall not have been
        remedied within 20 days after receipt by WPL or Interstate, as the
        case may be, of notice in writing from IES, specifying the nature of
        such failure and requesting that it be remedied; or

                (iii)  the Board of Directors of WPL or Interstate or any
        committee thereof:

                       (A)  shall withdraw or modify in any manner adverse to
             IES its approval or recommendation of this Agreement, or the IES
             Merger or the Interstate Merger,

                       (B)  shall fail to reaffirm such approval or
             recommendation upon IES's request,

                       (C)  shall approve or recommend any Business
             Combination involving WPL or Interstate other than the Merger
             involving WPL and Interstate or any tender offer for shares of
             capital stock of WPL or Interstate, in each case, by or
             involving a party other than IES or any of its Affiliates or

                       (D)  shall resolve to take any of the actions
             specified in clause (A), (B) or (C); 

             (i)  by Interstate, by written notice to WPL and IES, if

                  (i)  there exists any breach or breaches of the
        representations and warranties of WPL or IES made herein or in any of
        the Stock Option Agreements pursuant to which either of them is a
        grantor of options, which breaches, individually or in the aggregate
        have, or insofar as reasonably can be foreseen, would have, a WPL
        Material Adverse Effect or an IES Material Adverse Effect, and such
        breaches shall not have been remedied within 20 days after receipt by
        WPL or IES, as the case may be, of notice in writing from Interstate,
        specifying the nature of such breaches and requesting that they be
        remedied;

                 (ii)  WPL or IES (and/or its appropriate Subsidiaries) shall
        not have performed and complied with its agreements and covenants
        contained in Sections 7.3 and 7.4 or shall have failed to perform and
        comply with, in all material respects, its other agreements and
        covenants hereunder or under the Stock Option Agreements and such
        failure to perform or comply shall not have been remedied within 20
        days after receipt by WPL or IES, as the case may be, of notice in
        writing from Interstate, specifying the nature of such failure and
        requesting that it be remedied; or

                (iii)  the Board of Directors of WPL or IES or any committee
        thereof:

                       (A)  shall withdraw or modify in any manner adverse to
             Interstate its approval or recommendation of this Agreement, the
             IES Merger or the Interstate Merger,

                       (B)  shall fail to reaffirm such approval or
             recommendation upon Interstate's request,

                       (C)  shall approve or recommend any Business
             Combination involving WPL or IES other than the Merger involving
             WPL and IES or any tender offer for shares of capital stock of
             WPL or IES, in each case, by or involving a party other than
             Interstate or any of its Affiliates or

                       (D)  shall resolve to take any of the actions
             specified in clause (A), (B) or (C); or

             (j)  by WPL, by written notice to Interstate and IES, if

                  (i)  there exists any breach or breaches of the
        representations and warranties of Interstate or IES made herein or in
        any of the Stock Option Agreements pursuant to which either of them
        is a grantor of options, which breaches, individually or in the
        aggregate have or, insofar as reasonably can be foreseen, would have,
        an Interstate Material Adverse Effect or an IES Material Adverse
        Effect, and such breaches shall not have been remedied within 20 days
        after receipt by Interstate or IES, as the case may be, of notice in
        writing from WPL, specifying the nature of such breaches and
        requesting that they be remedied; 

                    (ii)  Interstate or IES (and/or its appropriate
        Subsidiaries) shall not have performed and complied with its
        agreements and covenants contained in Sections 7.3 and 7.4 or shall
        have failed to perform and comply with, in all material respects, its
        other agreements and covenants hereunder or under the Stock Option
        Agreements, and such failure to perform or comply shall not have been
        remedied within 20 days after receipt by Interstate or IES, as the
        case may be, of notice in writing from WPL, specifying the nature of
        such failure and requesting that it be remedied; and 

                  (iii)  the Board of Directors of Interstate or IES or any
        committee thereof: 

                       (A)  shall withdraw or modify in any manner adverse to
             WPL its approval or recommendation of this Agreement, or the IES
             Merger or the Interstate Merger, 

                       (B)  shall fail to reaffirm such approval or
             recommendation upon WPL's request, 

                       (C)  shall approve or recommend any Business
             Combination involving Interstate or IES other than the Merger
             involving Interstate and IES or any tender offer for the shares
             of capital stock of Interstate or IES, in each case by or
             involving a party other than WPL or any of its Affiliates or 

                       (D)  shall resolve to take any of the actions
             specified in clause (A), (B) or (C).

             Section 10.2  Effect of Termination.  Subject to Section
   11.1(b), in the event of termination of this Agreement by WPL, IES or
   Interstate pursuant to Section 10.1 there shall be no liability on the
   part of either WPL, IES or Interstate or their respective officers or
   directors hereunder, except that Section 8.1(b), Section 8.17, Section
   10.3, Section 11.2 and Section 11.8 shall survive the termination.

             Section 10.3  Termination Fee; Expenses.

             (a)  Termination Fee Upon Breach or Withdrawal of Approval.  If
   this Agreement is terminated at such time that this Agreement is
   terminable pursuant to one or two (but not three) of (x) Section
   10.1(h)(i) or (ii), (y) Section 10.1(i)(i) or (ii) or (z) Section
   10.1(j)(i) or (ii), then:

                  (i)  each breaching party shall promptly (but no later than
        five business days after receipt of notice from the non-breaching
        party or parties (other than AMW)) pay to the non-breaching party or
        parties in cash such breaching party's Participation Percentage (as
        hereinafter defined) of an amount equal to all documented out-of-
        pocket expenses and fees incurred by the non-breaching party or
        parties (including, without limitation, fees and expenses payable to
        all legal, accounting, financial, public relations and other
        professional advisors arising out of, in connection with or related
        to the Merger or the transactions contemplated by this Agreement) not
        in excess of $5 million for any non-breaching party; provided,
        however, that, if this Agreement is terminated by a party as a result
        of a willful breach by any other party, each non-breaching party may
        pursue any remedies available to it at law or in equity and shall, in
        addition to its documented out-of-pocket expenses and fees (which
        shall be paid as specified above and shall not be limited to $5
        million for any non-breaching party), be entitled to retain such
        additional amounts as such non-breaching party may be entitled to
        receive at law or in equity; and

                 (ii)  if

                       (A)  at the time of a breaching party's willful breach
             of this Agreement, there shall have been a third party tender
             offer for shares of, or a third party offer or proposal with
             respect to a Business Combination involving, such party or any
             of its Affiliates which at the time of such termination shall
             not have been rejected by such party and its board of directors
             or withdrawn by the third party, and

                       (B)  within two and one-half years of any termination
             by a non-breaching party, the breaching party or an Affiliate
             thereof becomes a Subsidiary of such offeror or a Subsidiary of
             an Affiliate of such offeror or accepts a written offer to
             consummate or consummates a Business Combination with such
             offeror or an Affiliate thereof,

        then such breaching party (jointly and severally with its
        Affiliates), at the closing (and as a condition to the closing) of
        such breaching party becoming such a Subsidiary or of such Business
        Combination, will pay to each non-breaching party (other than AMW) in
        cash such non-breaching party's Participation Percentage of an
        additional aggregate fee equal to $25 million, if WPL is the
        breaching party, $25 million, if IES is the breaching party, or $12.5
        million, if Interstate is the breaching party.

             (b)  Additional Termination Fee.  If

                  (i)  this Agreement 

                       (A) is terminated by any party pursuant to Section
             10.1(e), (f) or (g),

                       (B)  is terminated following a failure of the
             shareholders of any one of the necessary parties to grant the
             necessary approvals described in Section 4.13, Section 5.13 and
             Section 6.13 or

                       (C)  is terminated as a result of any party's material
             breach of Section 8.4, and

               (ii)  at the time of such termination or prior to the meeting
        of such party's shareholders there shall have been a third-party
        tender offer for shares of, or a third-party offer or proposal with
        respect to a Business Combination involving, such party or any of its
        Affiliates which at the time of such termination or of the meeting of
        such party's shareholders shall not have been (A) rejected by such
        party and its board of directors or (B) withdrawn by the third party,
        and

                 (iii)  within two and one-half years of any such termination
        described in clause (i) above, a Target Party (as defined herein)
        becomes a Subsidiary of such offeror or a Subsidiary of an Affiliate
        of such offeror or accepts a written offer to consummate or
        consummates a Business Combination with such offeror or an Affiliate
        thereof,

        then such Target Party (jointly and severally with its Affiliates),
        at the closing (and as a condition to the closing) of such Target
        Party becoming such a Subsidiary or of such Business Combination,
        will pay to each other party (other than AMW) in cash such other
        party's Participation Percentage of an aggregate termination fee
        equal to $25 million, if WPL is the Target Party, $25 million, if IES
        is the Target Party, or $12.5 million, if Interstate is the Target
        Party, plus, in each case, the documented out-of-pocket fees and
        expenses incurred by each such non-breaching party (including,
        without limitation, fees and expenses payable to all legal,
        accounting, financial, public relations and other professional
        advisors arising out of, in connection with or related to the Merger
        or the transactions contemplated by this Agreement).

             (c)  Second Termination Fee.  If this Agreement is terminated
   under circumstances that give rise to the payment of any fee pursuant to
   Section 10.3(b) by any party, and thereafter, within nine (9) months of
   such termination, either of the parties that was not a Target Party at the
   time of such termination becomes a Target Party (a "Second Target Party")
   of the same entity, or an Affiliate thereof, that caused the original
   Target Party to become such, then such Second Target Party (jointly and
   severally with its Affiliates), upon the signing of a definitive agreement
   relating to such a Business Combination, or, if no such agreement is
   signed, then at the closing (and as a condition to the closing) of such
   Second Target Party becoming such a Subsidiary or of such Business
   Combination, will pay to the remaining party (other than AMW) that is
   neither a Target Party nor a Second Target Party (a "Non-Target Party")

                  (i) a termination fee in cash equal to $25 million, if WPL
        is the Second Target Party, $25 million, if IES is the Second Target
        Party, or $12.5 million, if Interstate is the Second Target Party,
        plus, in each case, any additional documented out-of-pocket fees and
        expenses incurred by the Non-Target Party (including, without
        limitation, fees and expenses payable to all legal, accounting,
        financial, public relations and other professional advisors arising
        out of, in connection with or related to the Merger or the
        transactions contemplated by this Agreement); and

                  (ii)  the full amount of any termination fee paid to it by
        the first Target Party.

             (d)  Expenses.  The parties agree that the agreements contained
   in this Section 10.3 are an integral part of the transactions contemplated
   by the Agreement and constitute liquidated damages and not a penalty.  If
   one party fails to promptly pay to any other party any fee due hereunder,
   the defaulting party shall pay the costs and expenses (including legal
   fees and expenses) in connection with any action, including the filing of
   any lawsuit or other legal action, taken to collect payment, together with
   interest on the amount of any unpaid fee at the publicly announced prime
   rate of Citibank, N.A. from the date such fee was required to be paid.

             (e)  Limitation on Termination Fees.  Notwithstanding anything
   herein to the contrary,

                  (i)  the aggregate amount payable by WPL and its Affiliates
        to IES and/or Interstate pursuant to Section 10.3(a), Section 10.3(b)
        and the terms of the WPL/IES Stock Option Agreement and the
        WPL/Interstate Stock Option Agreement shall not exceed $40 million,

                  (ii) the aggregate amount payable by IES and its Affiliates
        pursuant to Section 10.3(a), Section 10.3(b) and the terms of the
        IES/WPL Stock Option Agreement and the IES/Interstate Stock Option
        Agreement shall not exceed $40 million, and 

                 (iii) the aggregate amount payable by Interstate and its
        Affiliates under Section 10.3(a), Section 10.3(b) and the terms of
        the Interstate/WPL Stock Option Agreement and the Interstate/IES
        Stock Option Agreement shall not exceed $20 million

   (exclusive, in each case, of reimbursement for fees and expenses payable
   pursuant to this Section 10.3).  For purposes of this Section 10.3(d), the
   amount payable pursuant to the terms of the Stock Option Agreements shall
   be the amount paid pursuant to Section 5 and/or Section 8(a)(i) and
   8(a)(ii) thereof.

             (f)  Certain Definitions.  

                  (i)  Participation Percentage.  A party's participation
        percentage ("Participation Percentage") shall be one hundred percent
        (100%) if only one party is required to pay or entitled to receive
        its Participation Percentage pursuant to the terms of this Section
        10.3.  If two parties are required to pay or entitled to receive
        their respective Participation Percentages, each party's
        Participation Percentage shall equal a fraction (expressed as a
        percentage), the numerator of which shall be, in the case of IES or
        Interstate, the number of shares of WPL Common Stock which would be
        issuable (on a fully diluted basis) to such party's shareholders, or,
        in the case of WPL, the number of shares of WPL Common Stock (on a
        fully diluted basis) that would have been retained by its
        shareholders, had the Effective Time occurred at the time this
        Agreement is terminated and the denominator of which shall be, the
        aggregate number of shares of WPL Common Stock that would be issuable
        to or retained by (in either case on a fully diluted basis) the
        shareholders of the two parties required to pay or entitled to
        receive their Participation Percentages, had the Effective time
        occurred at the time this Agreement is terminated.

                  (ii)  Target Party.  The term "Target Party" shall mean any
        of WPL, IES or Interstate, or their respective Affiliates, that is
        the subject of a tender offer or offer or proposal with respect to a
        Business Combination.

             Section 10.4  Amendment.

             (a)  This Agreement may be amended by the Boards of Directors of
   the parties hereto, at any time before or after approval hereof by the
   shareholders of WPL, IES and Interstate and prior to the Effective Time,
   but after such approvals, no such amendment shall

                  (i)  alter or change the amount or kind of shares, rights
        or any of the proceedings of the treatment of shares under Article
        II,

                 (ii)  alter or change any of the terms and conditions of
        this Agreement if any of the alterations or changes, alone or in the
        aggregate, would materially adversely affect the rights of holders of
        WPL, IES and Interstate Common Stock, or

                (iii)  alter or change any term of the Restated Articles of
        Incorporation of WPL, IES or Interstate as approved by the
        shareholders of WPL, IES and Interstate, respectively, except for
        alterations or changes that could otherwise be adopted by the Board
        of Directors of the Company, without the further approval of such
        shareholders, as applicable.

             (b)  This Agreement may not be amended except by an instrument
   in writing signed on behalf of each of the parties hereto.

             Section 10.5  Waiver.

             (a)  At any time prior to the Effective Time, the parties hereto
   may

                 (i)   extend the time for the performance of any of the
        obligations or other acts of the other parties hereto,

                 (ii)  waive any inaccuracies in the representations and
        warranties contained herein or in any document delivered pursuant
        hereto and

                (iii)  waive compliance with any of the agreements or
        conditions contained herein, to the extent permitted by applicable
        law.

             (b)  Any agreement on the part of a party hereto to any such
   extension or waiver shall be valid if set forth in an instrument in
   writing signed on behalf of such party.


                                   ARTICLE XI

                               GENERAL PROVISIONS

             Section 11.1  Non-survival; Effect of Representations and
   Warranties.

             (a)  All representations, warranties and agreements in this
   Agreement shall not survive the Merger, except as otherwise provided in
   this Agreement and except for the agreements contained in this Section
   11.1 and in Article II, Section 8.5 (Director and Officer
   Indemnification), Section 8.9 (Employee Agreements and Workforce Matters),
   Section 8.10 (Employee Benefit Plans), Section 8.11 (Stock Option and
   Other Stock Plans), Section 8.13 (Company Board of Directors), Section
   8.14 (Company Officers), Section 8.15 (Employment Contracts), Section 8.16
   (Post-Merger Operations), Section 8.17 (Expenses), Section 11.2 (Brokers)
   and Section 11.7 (Parties in Interest).

             (b)  No party may assert a claim for breach of any
   representation or warranty contained in this Agreement (whether by direct
   claim or counterclaim) except in connection with the termination of this
   Agreement pursuant to Section 10.1(h)(i), Section 10.1(i)(i), or Section
   10.1(j)(i) (or pursuant to any other subsection of Section 10.1, if the
   terminating party would have been entitled to terminate this Agreement
   pursuant to Section 10.1(h)(i), Section 10.1(i)(i) or Section 10.1(j)(i)).

             Section 11.2  Brokers.  

             (a)  WPL represents and warrants that, except for Merrill, whose
   fees have been disclosed to IES and Interstate prior to the date hereof,
   no broker, finder or investment banker is entitled to any brokerage,
   finder's or other fee or commission in connection with the Merger, or the
   transactions contemplated by this Agreement based upon arrangements made
   by or on behalf of WPL.

             (b)  IES represents and warrants that, except for Morgan, whose
   fees have been disclosed to WPL and Interstate prior to the date hereof,
   no broker, finder or investment banker is entitled to any brokerage,
   finder's or other fee or commission in connection with the IES Merger or
   the transactions contemplated by this Agreement based upon arrangements
   made by or on behalf of IES.

             (c)  Interstate represents and warrants that, except for
   Salomon, whose fees have been disclosed to WPL and IES prior to the date
   hereof, no broker, finder or investment banker is entitled to any
   brokerage, finder's or other fee or commission in connection with the
   Interstate Merger or the transactions contemplated by this Agreement based
   upon arrangements made by or on behalf of Interstate.

             Section 11.3  Notices.  All notices and other communications
   hereunder shall be in writing and shall be deemed given if (i) delivered
   personally, (ii) sent by reputable overnight courier service,
   (iii) telecopied (which is confirmed), or (iv) five days after being
   mailed by registered or certified mail (return receipt requested) to the
   parties at the following addresses (or at such other address for a party
   as shall be specified by like notice):

             (a)  If to WPL, to:   WPL Holdings, Inc.
                                   222 West Washington Avenue
                                   P.O. Box 2568
                                   Madison, WI  53701-2568

                  Attention:       Erroll B. Davis, Jr.
                                   President and Chief Executive Officer 

                  Telephone:       (608) 252-3137
                  Telecopy:        (608) 252-5059

                  with a copy to:  Foley & Lardner
                                   777 East Wisconsin Avenue
                                   Milwaukee, WI 53202-5367

                  Attention:       Benjamin F. Garmer, III, Esq.

                  Telephone:       (414) 297-5675
                  Telecopy:        (414) 297-4900


             (b) If to IES, to:    IES Industries Inc.
                                   IES Tower
                                   200 First Street S.E.
                                   Cedar Rapids, IO  52401

                  Attention:       Stephen W. Southwick
                                   Vice President, General Counsel and
                                   Secretary 

                  Telephone:       (319) 398-8147
                  Telecopy:        (319) 398-4204

                  with a copy to:  Winthrop, Stimson, Putnam 
                                     & Roberts
                                   One Battery Park Plaza
                                   New York, New York 10004-1490

                  Attention:       Stephen R. Rusmisel, Esq.  

                  Telephone:       (212) 858-1442
                  Telecopy:        (212) 858-1500


             (c) If to Interstate,
                   to:             Interstate Power Company
                                   1000 Main Street
                                   P.O. Box 769
                                   Dubuque, IO  52004-0789

                  Attention:       Wayne H. Stoppelmoor
                                   Chairman of the Board 

                  Telephone:       (319) 557-2200 
                  Telecopy:        (319) 557-2202

                  with a copy to:  Milbank, Tweed, Hadley & McCloy
                                   1 Chase Manhattan Plaza
                                   New York, New York 10005-1413

                  Attention:       John T. O'Connor, Esq.

                  Telephone:       (212) 530-5548
                  Telecopy:        (212) 530-0283


             Section 11.4  Miscellaneous.  This Agreement (including the
   documents and instruments referred to herein)

             (a)  constitutes the entire agreement and supersedes all other
   prior agreements and understandings, both written and oral, among the
   parties, or any of them, with respect to the subject matter hereof other
   than the Confidentiality Agreement and the Stock Option Agreements;

             (b)  shall not be assigned by operation of law or otherwise; and

             (c)  shall be governed by and construed in accordance with the
   laws of the State of Delaware applicable to contracts executed in and to
   be fully performed in such State, without giving effect to its conflicts
   of law rules or principles or to any requirement as to jurisdiction or
   service of process contained in Section 2708 of Title 6 of the Delaware
   Code, and except to the extent the provisions of this Agreement (including
   the documents or instruments referred to herein) are expressly governed by
   or derive their authority from the WBCL, IBCA or the DGCL.

             Section 11.5  Interpretation.  When a reference is made in this
   Agreement to Sections or Exhibits, such reference shall be to a Section or
   Exhibit of this Agreement, respectively, unless otherwise indicated.  The
   table of contents and headings contained in this Agreement are for
   reference purposes only and shall not affect in any way the meaning or
   interpretation of this Agreement.  Whenever the words "include,"
   "includes" or "including" are used in this Agreement, they shall be deemed
   to be followed by the words "without limitation." 

             Section 11.6  Counterparts; Effect.  This Agreement may be
   executed in one or more counterparts, each of which shall be deemed to be
   an original, but all of which shall constitute one and the same agreement.

             Section 11.7  Parties in Interest.

             (a)  A majority of the IES Directors (or their successors)
   serving on the Board of Directors of the Company who are designated by IES
   pursuant to Section 8.13 (Company Board of Directors) shall be entitled to
   enforce or waive compliance with the provisions of Section 8.13 during the
   time such provisions are, by their specific terms, applicable and shall
   also be entitled during the three-year period commencing at the Effective
   Time (the "Three-Year Period") to enforce the provisions of Section 8.9
   (Employee Agreements and Workforce Matters), Section 8.10 (Employee
   Benefits Plans), Section 8.11 (Stock Option and Other Stock Plans),
   Section 8.14(a) (Company Officers), Section 8.15 (Employment Contracts)
   and Section 8.16(b) and (d) (Post-Merger Operations), and the agreements
   referred to in Schedules 4.10 (Employee Matters; ERISA), 5.10 (Employee
   Matters; ERISA), 6.10 (Employee Matters; ERISA) and 7.10 (Compensation
   Benefits), in each instance on behalf of the IES officers, directors and
   employees, as the case may be;

             (b)  A majority of the WPL Directors (or their successors)
   serving on the Board of Directors of the Company who are designated by WPL
   pursuant to Section 8.13 shall be entitled to enforce or waive compliance
   with the provisions of Section 8.13 during the time such provisions are,
   by their specific terms, applicable and shall also be entitled during the
   five-year period following the Effective Time to enforce the provisions of
   Section 8.14(b) and (h) and Section 8.16(a) and during the Three-Year
   Period to enforce the provisions of Section 8.9, Section 8.10, Section
   8.11 and Section 8.15, and the agreements referred to in Schedules 4.10,
   5.10, 6.10 and 7.10, in each instance on behalf of WPL officers, directors
   and employees, as the case may be; and

             (c)  A majority of the Interstate Directors (or their
   successors) serving on the Board of Directors of the Company who are
   designated by Interstate pursuant to Section 8.13 shall be entitled to
   enforce or waive compliance with the provisions of Section 8.13 during the
   time such provisions are, by their specific terms, applicable and shall
   also be entitled during the Three-Year Period to enforce the provisions of
   Section 8.9, Section 8.10, Section 8.11, Section 8.14(c), Section 8.15 and
   Section 8.16(b) and (d), and the agreements referred to in Schedules 4.10,
   5.10, 6.10 and 7.10, in each instance on behalf of the Interstate
   officers, directors and employees, as the case may be.  

             Section 11.8  Binding Effect; Benefits.  This Agreement shall
   inure to the benefit of and be binding upon the parties hereto and their
   respective successors and assigns; except as provided in Section 8.5(e)
   and Section 11.7, nothing in this Agreement, express or implied, shall
   confer upon any person, other than the parties hereto and their respective
   successors and assigns, any rights, remedies, obligations or liabilities
   under or by reason of this Agreement.

             Section 11.9  WAIVER OF JURY TRIAL AND CERTAIN DAMAGES.  EACH
   PARTY TO THIS AGREEMENT WAIVES, TO THE FULLEST EXTENT PERMITTED BY
   APPLICABLE LAW, 

                  (a) ANY RIGHT IT MAY HAVE TO A TRIAL BY JURY IN RESPECT OF
        ANY ACTION, SUIT OR PROCEEDING ARISING OUT OF OR RELATING TO THIS
        AGREEMENT, AND 

                  (b) WITHOUT LIMITATION TO SECTION 10.3, ANY RIGHT IT MAY
        HAVE TO RECEIVE DAMAGES FROM ANY OTHER PARTY BASED ON ANY THEORY OF
        LIABILITY FOR ANY SPECIAL, INDIRECT, CONSEQUENTIAL (INCLUDING LOST
        PROFITS) OR PUNITIVE DAMAGES.

             Section 11.10  Enforcement.  The parties agree that irreparable
   damage would occur in the event that any of the provisions of this
   Agreement were not performed in accordance with their specific terms or
   were otherwise breached.  It is accordingly agreed that the parties shall
   be entitled to an injunction or injunctions to prevent breaches of this
   Agreement and to enforce specifically the terms and provisions hereof,
   this being in addition to any other remedy to which they are entitled at
   law or in equity.

             IN WITNESS WHEREOF, WPL, IES, Interstate and AMW have caused
   this Agreement to be signed by their respective officers thereunto duly
   authorized as of the date first written above.


                                      WPL HOLDINGS, INC.

   Attest:


   By:  /s/ Edward M. Gleason         By:  /s/ Erroll B. Davis, Jr. 
        Edward M. Gleason                  Name:   Erroll B. Davis, Jr.
        Corporate Secretary                Title:  President and Chief
                                                   Executive Officer


                                      IES INDUSTRIES INC.

   Attest:


   By:  /s/ Stephen W. Southwick      By:  /s/ Lee Liu              
        Stephen W. Southwick               Name:   Lee Liu
        Secretary and General              Title:  Chairman of the Board, 
        Counsel                                    President and Chief
                                                   Executive Officer


                                      INTERSTATE POWER COMPANY

   Attest:


   By:  /s/ Joseph C. McGowan         By:  /s/ Wayne H. Stoppelmoor 
        Joseph C. McGowan                  Name:   Wayne H. Stoppelmoor
        Secretary and Treasurer            Title:  Chairman of the Board,
                                                   President and Chief
                                                   Executive Officer

                                      AMW ACQUISITION, INC.

   Attest:



   By:  /s/ Edward M. Gleason         By:  /s/ Erroll B. Davis, Jr. 
        Edward M. Gleason                  Name:   Erroll B. Davis, Jr.
        Secretary                          Title:  President



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