AMEREN CORP
U-1, 1996-10-31
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<PAGE>
 

   As filed with the Securities and Exchange Commission on October 31, 1996

                                                                  File No. _____


                                 UNITED STATES
                      SECURITIES AND EXCHANGE COMMISSION
                            WASHINGTON, D.C. 20549

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

                                   FORM U-1

                            APPLICATION/DECLARATION

                                     UNDER

                THE PUBLIC UTILITY HOLDING COMPANY ACT OF 1935

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

                              Ameren Corporation
                             1901 Chouteau Avenue
                           St. Louis, Missouri 63103

                    (Name of company filing this statement
                  and address of principal executive offices)

                                     None

                   (Name of top registered holding company)

                               William E. Jaudes
                               Registered Agent
                              Ameren Corporation
                             1901 Chouteau Avenue
                          St. Louis, Missouri  63103

                  (Names and addresses of agents of service)


The Commission is requested to send copies of all notices, orders and
communications in connection with this Application to:

James J. Cook                                  William J. Harmon
Union Electric Company                         Thomas D. Brooks
1901 Chouteau Avenue                           Jones, Day, Reavis & Pogue
P.O. Box 149                                   77 West Wacker, Suite 3500
St. Louis, Missouri 63166                      Chicago, Illinois 60601-1692
<PAGE>
 

                               Table of Contents

<TABLE>
<CAPTION>
                                                                            Page
                                                                            ----
<S>                                                                         <C>
Item 1.    Description of Proposed Transaction...........................      1
       A.  Introduction..................................................      1
           1.  General Request...........................................      2
           2.  Overview of the Transaction...............................      3
       B.  Description of the Parties to the Transaction.................      4
           1.  General Description.......................................      4
               a.  UE....................................................      4
               b.  CIPSCO and CIPS.......................................      6
               c.  Ameren and Arch Merger................................      8
                   i.     Ameren.........................................      8
                   ii.    Arch Merger....................................      8
               d.  Ameren Services.......................................      8
           2.  Description of Energy Sales, Facilities and Fuel..........      9
               a.  UE....................................................      9
                   i.    General.........................................      9
                   ii.   Electric Generating Facilities..................      9
                   iii.  Electric Transmission and Other Facilities......     11
                   iv.   Fuel Sources....................................     12
                   v.    Gas Facilities..................................     13
               b.  CIPSCO and CIPS.......................................     13
                   i.    General.........................................     13
                   ii.   Electric Generating Facilities..................     13
                   iii.  Electric Transmission and Other Facilities......     14
                   iv.   Fuel Sources....................................     15
                   v.    Gas Facilities..................................     15
               c.  Transferred Utility Facilities........................     16
           3.  Nonutility Interests of UE and CIPSCO.....................     16
               a.  UE....................................................     16
               b.  CIPSCO................................................     16
           4.  Present Electric Coordination.............................     17
           5.  Present Gas Coordination..................................     18
       C.  Description of Transaction and Statement as to Consideration..     19
           1.  Background................................................     19
           2.  Benefits of the Transaction...............................     24
           3.  Merger Agreement..........................................     26
               a.  Consideration.........................................     26
               b.  Other Terms...........................................     27
               c.  Management Following the Mergers......................     27
           4.  Related Agreements........................................     27
       D.  Dividend Reinvestment Plan and Employee Benefits Plans........     27
           1.  Sources of Common Stock and Use of Proceeds...............     28
           2.  Dividend Reinvestment Plan................................     28
           3.  Employee Benefit Plans....................................     29
</TABLE>

                                       i
<PAGE>
 

<TABLE>
<CAPTION>
<S>                                                                         <C>
               a.  Long Term Incentive Plan..............................     29
               b.  Savings Plans.........................................     30
           4.  Solicitation of Proxies...................................     30

Item 2.    Fees, Commissions and Expenses................................     30

Item 3.    Applicable Statutory Provisions...............................     31
       A.  Analysis of Transaction.......................................     33
           1.  Section 10(b).............................................     35
               a.  Section 10(b)(1)......................................     35
                   i.     Interlocking Relationships.....................     35
                   ii.    Concentration of Control.......................     36
               b.  Section 10(b)(2)--Fairness of Consideration...........     40
                   i.     Reasonableness of Consideration................     40
                   ii.    Reasonableness of Fees.........................     41
               c.  Section 10(b)(3)--Capital Structure; Not Detrimental
                   to Public Interest....................................     43
           2.  Section 10(c).............................................     46
               a.  Section 10(c)(1)......................................     46
                   i.     Retention of Gas Operations....................     47
                          (A)  Ameren Satisfies the Traditional "ABC"
                               Test......................................     48
                               (1)  Clause (A)...........................     48
                               (2)  Clauses (B) and (C) of Section
                                    11(b)(1) are Satisfied...............     51
                          (B)  The Commission Should Not Require
                               Ameren to Satisfy the Traditional "ABC"
                               Test......................................     52
                               (1)  The Act Does Not Prohibit
                                    Combination Companies................     52
                               (2)  The Commission's Interpretation
                                    of the Act...........................     53
                               (3)  The Commission Should Revise
                                    Its Interpretation of The Act........     54
                               (4)  UE's and CIPS' Combination
                                    Systems Are Not
                                    Prohibited by State Law..............     63
                   ii.    Other Businesses...............................     64
               b.  Section 10(c)(2)......................................     74
                   i.     Efficiencies and Economies.....................     74
                   ii.    Integrated Public Utility System...............     78
                          (A)  Electric Utility System...................     78
                          (B)  Gas Utility System........................     81
           3.  Section 10(f)--Compliance with State Law..................     83
           4.  Section 9(a)(1)...........................................     84
           5.  Other Applicable Provisions--Sections 6, 7, 12 and 13.....     84
       B.  Intra-system Financing........................................     85
</TABLE>

                                      ii
<PAGE>
 

<TABLE>
<CAPTION>
<S>                                                                         <C>
       C.  Ameren Services...............................................     86
       D.  Other Services................................................     88

Item 4.    Regulatory Approvals..........................................     88
       A.  Antitrust.....................................................     88
       B.  Federal Power Act.............................................     88
       C.  State Public Utility Regulation...............................     89
       D.  Nuclear Regulatory Commission.................................     92

Item 5.    Procedure.....................................................     92

Item 6.    Exhibits and Financial Statements.............................     92
       A.  Exhibits......................................................     92
       B.  Financial Statements..........................................     94

Item 7.    Information as to Environmental Effects.......................     94
</TABLE>

                                      iii
<PAGE>
 
Item 1.  Description of Proposed Transaction

A.   Introduction

     This Application/Declaration seeks approvals relating to the proposed
business combination transaction among Ameren Corporation ("Ameren"), Union
Electric Company ("UE") and CIPSCO Incorporated ("CIPSCO"), by which UE and
CIPSCO's utility subsidiary, Central Illinois Public Service Company ("CIPS"),
will become wholly owned subsidiaries of Ameren, a new Missouri holding company
(the "Transaction"). Following the consummation of the Transaction, Ameren will
register with the Securities and Exchange Commission (the "Commission") as a
holding company under the Public Utility Holding Company Act of 1935 (the
"Act").

     UE is an electric and gas utility company operating in Missouri and
Illinois. CIPS is an electric and gas utility company operating in Illinois.
CIPSCO and UE are each exempt holding companies pursuant to orders of the
Commission. CIPS is an exempt holding company pursuant to Section 3(a)(2) of the
Act and Rule 2 thereunder. See Item 1.B.1.a. and b. below.

     The Transaction is expected to produce substantial benefits to the public,
investors and consumers and meets all applicable standards of the Act. Among
other things, UE and CIPSCO believe that the Transaction will allow the
shareholders of each of the companies to participate in a larger, financially
stronger company, and, through a pooling of their equity, management, human
resources and technical expertise, and increased coordination of use of their
facilities, enable the companies to achieve benefits of increased financial
stability and strength, greater opportunities for earnings and dividend growth,
improved creditworthiness, unified management, reduction of operating costs,
efficiencies of operation, better use of facilities for the benefit of
customers, improved ability to use new technologies, greater industrial sales
diversity and improved capability to make wholesale power purchases and sales.
In this regard, UE and CIPSCO believe that synergies created by the Transaction
will generate substantial cost savings which would not be available absent the
Transaction. UE and CIPSCO have estimated the dollar value of synergies from the
Transaction to be approximately $686 million over the 10-year period from 1997
to 2006. The expected benefits of the Transaction are discussed in further
detail in Item 3.A.2.b.i. below.

     The Transaction was approved by the shareholders of UE and CIPSCO at
special meetings held December 20, 1995. Approvals are required from the
Missouri Public Service Commission ("MPSC"), the Illinois Commerce Commission
("ICC"), the Federal Energy Regulatory Commission ("FERC") and the Nuclear
Regulatory Commission ("NRC"). The Transaction is also subject to the expiration
of the waiting period under the Hart-Scott-Rodino Antitrust Improvements Act of
1976, as amended (the "HSR Act"), without adverse action by the Antitrust
Division of the U.S. Department of Justice ("DOJ") or the Federal Trade
Commission ("FTC"). Apart from the approval of the Commission under the Act, the
foregoing approvals are the only approvals required for the consummation of the
Transaction. In order to permit timely consummation of the Transaction and the
realization of the substantial benefits it is expected to produce, Ameren
requests that the Commission's review of this Application/Declaration commence
and proceed as expeditiously as practicable.
<PAGE>
 
     1.  General Request

     Pursuant to Sections 9(a)(2) and 10 of the Act, Ameren hereby requests
authorization and approval of the Commission to acquire, by means of the mergers
described below, all of the issued and outstanding common stock of UE and CIPSCO
and the indirect acquisition of 60% of the outstanding common stock of Electric
Energy, Inc. ("EEI") as described below. Ameren also hereby requests that the
Commission approve:

          (i)     the establishment of Ameren Services Corp. ("Ameren Services")
     (described in Item 3.C below) in accordance with Rule 88 under the Act and
     the acquisition by Ameren of all of the outstanding voting securities of
     Ameren Services;

          (ii)    the General Services Agreement (defined below), a form of
     which is filed as Exhibit B-4 hereto;

          (iii)   the issuance of Ameren Common Stock (as defined below) in
     connection with the Transaction;

          (iv)    the issuance by Ameren (and/or the acquisition by or on behalf
     of Ameren in open market transactions) of up to 19 million shares of Ameren
     Common Stock, over the period ending five years after the date of the
     Commission's approving order in this docket, for purposes of certain
     employee benefit and dividend reinvestment plans of UE, CIPSCO, CIPS and
     Ameren;

          (v)     the solicitation of proxies from the holders of Ameren Common
     Stock for approvals deemed necessary or desirable in connection with the
     establishment or amendment of employee benefit plans referred to in (iv);

          (vi)    the acquisition by Ameren of all of the outstanding voting
     securities of CIPSCO Investment Company (currently a wholly owned
     subsidiary of CIPSCO) ("CIPSCO Investment"), which serves as a holding
     company for certain nonutility investments;

          (vii)   the retention by Ameren of the gas properties of UE and CIPS
     and the continued operation of UE and CIPS as combination utilities;

          (viii)  the retention by Ameren of the nonutility activities,
     businesses and investments of UE and CIPSCO Investment and the making of
     certain similar investments over a period ending five years after the date
     of the Commission's approving order in this docket;

          (ix)    the continuation of all outstanding intrasystem debt, equity
     and guaranties; and

          (x)     the transfer by UE to CIPS of the Transferred Utility
     Facilities (defined below) located in Illinois.

                                       2
<PAGE>
 
     2.  Overview of the Transaction

     Under the Agreement and Plan of Merger executed by CIPSCO and UE on August
11, 1995 (the "Merger Agreement"), CIPSCO and UE have organized a new Missouri
corporation, Ameren, to serve as the eventual holding company for CIPS and UE as
well as for CIPSCO Investment. Ameren has, in turn, organized a wholly-owned
Missouri subsidiary, Arch Merger, Inc. ("Arch Merger"). Upon receipt of all
necessary approvals, the Transaction will be consummated by merging CIPSCO into
Ameren, with Ameren as the surviving corporation, and by merging UE with Arch
Merger, with UE as the surviving corporation (collectively, the "Mergers"). A
copy of the Merger Agreement, filed as Exhibit B-1 hereto, is incorporated by
reference.

     After the Transaction is effective, Ameren will own 100% of the common
stock of two combination public utility subsidiaries, UE and CIPS, as well as
100% of the common stock of CIPSCO Investment. UE will continue to own 40% of
the common stock of EEI and 100% of the common stock of Union Electric
Development Corporation ("UEDC"), which is engaged principally in unregulated
nonutility investments. CIPS will continue to own 20% of the common stock of
EEI, and CIPSCO Investment will continue to own 100% of the capital stock of
those subsidiaries engaged in the unregulated nonutility investment business of
CIPSCO. Thus, EEI will be an affiliate and subsidiary of Ameren.

     The transaction calls for a tax-free exchange of CIPSCO common stock and UE
common stock. Pursuant to the Merger Agreement, each outstanding share of CIPSCO
common stock will be converted into the right to receive 1.03 shares (the
"CIPSCO Ratio") of Ameren Common Stock, par value $.01 per share ("Ameren Common
Stock"), and each outstanding share of UE common stock will be converted into
the right to receive one share (the "UE Ratio") of Ameren Common Stock. The
outstanding UE and CIPS preferred stock will not be affected in the Transaction.
Ameren is expected to have a total of 137,215,462 shares of Ameren Common Stock
outstanding. It is anticipated that Ameren will adopt UE's per share dividend
payment level as of the effective time of the Mergers.

     Following consummation of the Transaction, the headquarters of Ameren will
be in St. Louis, Missouri. The headquarters of the two utility subsidiaries will
remain in their current locations, UE's in St. Louis, Missouri, and CIPS' in
Springfield, Illinois. Ameren Services will maintain offices in St. Louis and
Springfield. Ameren's utility subsidiaries will serve 1,451,005 electric
customers and 285,403 natural gas customers in portions of Missouri and
Illinois. Pursuant to the Merger Agreement, UE expects to transfer its retail
electric and gas distribution utility assets located in Illinois (the
"Transferred Utility Facilities") to CIPS. As a result, after consummation of
the Transaction, CIPS is expected to begin providing service to the
approximately 63,000 electric customers and 18,000 gas customers currently
served by UE in Illinois.

                                       3
<PAGE>
 
B.  Description of the Parties to the Transaction

     1.  General Description

          a.  UE

     UE is a Missouri corporation also authorized to do business in Illinois and
is a public utility company. The principal business of UE is to provide electric
energy to customers in a 24,500 square mile area of Missouri and Illinois. UE's
Missouri electric service area includes the City of St. Louis and St. Louis
County, and all or portions of 65 other counties. Its Illinois service area
includes the cities of East St. Louis and Alton. In addition to the retail
electric business, UE serves 18 wholesale electric customers, all of which are
located in Missouri. UE also provides natural gas service to customers in 23
Missouri counties and two Illinois counties and provides steam service in
Jefferson City, Missouri. Maps of UE's electric and gas service territories are
attached as Exhibits E-4 and E-5 respectively.

     As of June 30, 1996, UE provided retail electric service to approximately
1,069,000 customers in Missouri and 63,000 in Illinois. UE provides natural gas
service to approximately 102,000 customers in Missouri and 18,000 customers in
Illinois. As of June 30, 1996, UE had 6,167 employees in its two-state
operations.

     There are two other interests which are held by UE and operated through
subsidiary corporations. UE is the sole stockholder of Union Electric
Development Corporation ("UEDC") (formerly known as Union Colliery Company), and
UE owns 40 percent of the common stock of EEI. UEDC is used principally to own
and invest in energy related or civic and community development related
investments in the UE service area. EEI was formed in the early 1950s to provide
electric energy to a uranium enrichment plant located near Paducah, Kentucky.
The enrichment plant was originally operated by the Atomic Energy Commission and
the Department of Energy and is operated today by the United States Enrichment
Corporation. EEI owns the Joppa Plant, a 1,015 mW coal-fired electric generating
plant located near Joppa, Illinois, and six 161 kV transmission lines which
transmit power from the Joppa Plant to the Paducah enrichment plant. EEI's
common stock is held by four utility companies: UE, 40%; CIPS, 20%; and two
unaffiliated utilities, Kentucky Utilities Company, 20%; and Illinois Power
Company, 20%. EEI sells electricity to its sponsoring utilities for resale. The
uranium enrichment facility is EEI's only end-user customer. SEE CENTRAL
ILLINOIS PUBLIC SERVICE CO., 32 S.E.C. 202 (Jan. 15, 1951); ELECTRIC ENERGY,
INC., 32 S.E.C. 495 (June 26, 1951); ELECTRIC ENERGY, INC., Rel. No. 35-13312
(Nov. 19, 1956); and ELECTRIC ENERGY, INC., 38 S.E.C. 658 (Nov. 28, 1958) for
more information concerning EEI.

     UE is an exempt public utility holding company pursuant to an order of the
Commission under Section 3(a)(2) of the Act. SEE IN RE UNION ELECTRIC CO., 40
SEC 1072

                                       4
<PAGE>
 
(Apr. 2, 1962) and IN RE UNION ELECTRIC CO., Rel. No. 18368 (Apr. 10, 1974).
With respect to UE's ownership of EEI, SEE UNION ELECTRIC, CO., 40 SEC 1072
(Apr. 2, 1962)./1/

     As a "public utility" under the laws of Missouri, UE is regulated by the
MPSC as to its retail rates, services, accounts, depreciation, issuance of
securities, and certain utility property transactions, and in other respects as
provided by Missouri law. UE is also subject to regulation by the FERC with
respect to borrowings and the issuance of securities not regulated by the MPSC,
the classification of accounts, rates to wholesale customers, interconnection
agreements, and acquisitions and sales of certain utility properties as provided
by federal laws.

     As a "public utility" under the laws of Illinois, UE is regulated by the
ICC as to its retail rates, services, accounts, depreciation, issuance of
securities, certain utility property transactions, transactions with "affiliated
interests" and in other respects as provided by Illinois law. Under Illinois
law, the ICC has jurisdiction over a "reorganization" such as the Transaction
and must find that the Transaction satisfies certain specific requirements
designed to protect consumers and preserve effective regulation by the ICC. See
Item 4.C below.

     In addition, UE is subject to regulation by the NRC in connection with its
ownership and operation of the Callaway nuclear generating facility, a 1,100 mW
facility 100% owned by UE.

     UE's retail electric, natural gas and steam operations in Missouri are
regulated by the MPSC. Its electric and natural gas operations in Illinois are
regulated by the ICC. Its wholesale electric sales are regulated by the FERC.

     The common stock, par value of $5.00 per share, of UE ("UE Common Stock")
is listed on the New York Stock Exchange ("NYSE"). As of June 30, 1996, there
were

- ----------------
/1/  On July 28, 1975, UE registered under and pursuant to the provisions of
     Section 5(a) of the Act for the sole and limited purpose of subjecting
     itself to the provisions of Section 11(b)(2) of the Act in order that it
     might obtain the approval and enforcement of a plan (the "Plan") to
     eliminate the publicly-held minority interest in the common stock of
     Missouri Utilities Company, as required by the Commission. The exchange
     transaction proposed and provided for in the Plan has been carried out in
     accordance with the terms and conditions of the Plan. The United States
     District Court, having jurisdiction over the Plan's enforcement, has
     ordered the Plan terminated and has relieved UE of any further obligation.
     UE's limited purpose for registering as a holding company having been
     fulfilled, it has returned to its status as an exempt holding company and
     this Commission should so find. The necessity to notify the Commission of
     changes affecting UE's relationship with or interest in EEI, or any changes
     in EEI's contract with the United States Enrichment Corporation or in the
     ownership of EEI's securities, should cease upon conclusion of this
     proceeding, since the circumstances under which these requirements arose
     are no longer relevant.

                                       5
<PAGE>
 
102,123,834 shares of UE Common Stock and 3,434,336 shares of UE cumulative
preferred stock outstanding. UE's principal executive office is located at 1901
Chouteau Avenue, St. Louis, Missouri 63103. A copy of the Restated Articles of
Incorporation of UE, filed herewith as Exhibit A-2, is incorporated by
reference.

     For the 12 months ended June 30, 1996, UE's operating revenues were
approximately $2.1 billion, as follows:

<TABLE>
<CAPTION>
                    <S>         <C>
                    Electric    $2.016 billion

                    Gas         $94.7 million

                    Steam       $452 thousand
</TABLE>

     Total net assets of UE at June 30, 1996 were approximately $6.9 billion,
consisting of approximately $5.3 billion in electric utility property, plant and
equipment; $125 million in gas utility property, plant and equipment; and $1.4
billion in other corporate assets.

     More detailed information concerning UE and its subsidiaries is contained
in UE's Annual Report on Form 10-K for the year ended December 31, 1995 (which
incorporates certain portions of its Annual Report to Shareholders which is
incorporated herein by reference as Exhibit I-3), a copy of which is
incorporated by reference as Exhibit I-1 and its Quarterly Reports on Form 10-Q
for the quarters ended March 31, 1996 and June 30, 1996, which are incorporated
by reference as Exhibit I-5.

          b.   CIPSCO and CIPS

     CIPSCO, incorporated under the laws of the State of Illinois in 1986, is an
exempt public utility holding company pursuant to an order of the Commission
under Section 3(a)(1) of the Act. SEE CIPSCO INCORPORATED, 47 SEC Docket 174
(Sept. 18, 1990).

     CIPSCO owns all of the issued and outstanding common stock of CIPS. CIPS,
an Illinois corporation organized in 1902, supplies electricity and natural gas
services in a 20,000 square mile region of central and southern Illinois,
rendering service to approximately 319,000 retail electric customers in 557
communities and distributing natural gas to approximately 167,000 customers in
267 communities. CIPS' utility service territory has an estimated population of
820,000 (about seven percent of Illinois' population) and contains about 35% of
the surface area of Illinois. In addition, CIPS sells electricity in the
wholesale and interchange markets to such entities as Soyland Electric
Cooperative, Illinois Municipal Electric Agency, Wabash Valley Power
Association, Inc., Mt. Carmel Public Utility Company, individual municipal
electric systems and other public- and investor-owned electric systems. As
noted, CIPS owns 20% of the common stock of EEI. At June 30, 1996, CIPS had
approximately 2,360 employees. A map of CIPS' electric and gas service
territories is attached as Exhibit E-3.

     CIPS is an exempt holding company pursuant to Section 3(a)(2) of the Act
and Rule 2 thereunder. Pursuant to Rule 2, CIPS has filed a statement with the
Commission on Form

                                       6
<PAGE>
 
U-3A-2 dated February 28, 1996 a copy of which is incorporated by reference as
Exhibit I-4 hereto. With respect to CIPS' ownership of EEI, see CENTRAL ILLINOIS
PUBLIC SERVICE CO., 32 S.E.C. 202 (Jan. 15, 1951).

     As a "public utility" under the laws of Illinois, CIPS is regulated by the
ICC as to its retail rates, services, accounts, depreciation, issuance of
securities, certain utility property transactions, transactions with "affiliated
interests" and in other respects as provided by Illinois law. CIPS is also
subject to regulation by the FERC with respect to borrowings and the issuance of
securities not regulated by the ICC, the classification of accounts, rates to
wholesale customers, interconnection agreements, and acquisitions and sales of
certain utility properties as provided by federal laws. Under Illinois law, the
ICC has jurisdiction over a "reorganization" such as the Transaction and must
find that the Transaction satisfies certain specific requirements designed to
protect consumers and preserve effective regulation by the ICC. See Item 4.C.
below.

     CIPSCO conducts its nonutility businesses through its subsidiary, CIPSCO
Investment. CIPSCO Investment manages CIPSCO's nonutility investments, including
leveraged leases, marketable securities and investments in energy projects.
CIPSCO Investment was organized on October 2, 1990. CIPSCO Investment has four
first-tier subsidiaries: CIPSCO Securities Company, which manages a portfolio of
equities and other marketable securities; CIPSCO Leasing Company, which manages
long-term leveraged leases for various equipment and real estate; CIPSCO Energy
Company, which manages electric generation projects under leveraged leases and a
limited partnership; and CIPSCO Venture Company, which makes investments in the
CIPS service territory. CIPSCO Investment will be wholly owned by Ameren, and
current expectations are that, following consummation of the Transaction, CIPSCO
Investment will continue to operate much as it does today.

     The common stock of CIPSCO (the "CIPSCO Common Stock") is listed on the
NYSE and the Chicago Stock Exchange ("CSE"). As of June 30, 1996, there were
34,069,542 shares of CIPSCO Common Stock outstanding. CIPSCO has no preferred
stock outstanding. CIPS has 800,000 shares of Cumulative Preferred Stock
outstanding. CIPSCO's principal executive office is located at 607 East Adams
Street, Springfield, Illinois. Copies of the Amended and Restated Articles of
Incorporation of CIPSCO and the Restated Articles of Incorporation of CIPS are
incorporated by reference as Exhibits A-3 and A-4.

     On a consolidated basis, CIPSCO's operating revenues for the 12 months
ended June 30, 1996 were approximately $879.5 million, broken down as follows:

<TABLE>
<CAPTION>
 
                    <S>         <C>
                    Electric    $728 million
 
                    Gas         $141 million

                    Other       $ 11 million
</TABLE>

     Consolidated net assets of CIPSCO at June 30, 1996 were approximately $1.8
billion, consisting of $1.1 billion in electric utility plant, property and
equipment; $135 million in gas utility property, plant and equipment; and $597
million in other assets.

                                       7
<PAGE>
 
     More detailed information concerning CIPSCO and CIPS is contained in the
Annual Report of CIPSCO and CIPS on Form 10-K for the year ended December 31,
1995, which is incorporated by reference as Exhibit I-2; the Quarterly Reports
of CIPSCO and CIPS on Form 10-Q for the quarters ended March 31, 1996 and June
30, 1996, which are incorporated by reference as Exhibit I-6; and CIPS'
Statement on Form U-3A-2 for the year ended December 31, 1995, which is
incorporated by reference as Exhibit I-4.

          c.   Ameren and Arch Merger

               i.   Ameren

     Ameren was incorporated under the laws of the State of Missouri on August
7, 1995 as Arch Holding Corp. to become a holding company for UE and CIPS
following the Transaction and for the purpose of facilitating the Transaction.
Its name was changed to Ameren Corporation on October 19, 1995. Ameren has, and
prior to the consummation of the Transaction will have, no operations other than
those contemplated by the Merger Agreement to accomplish the Transaction. The
authorized capital stock of Ameren consists of 400,000,000 shares of Ameren
Common Stock and 100,000,000 shares of preferred stock, par value $.01 per share
("Ameren Preferred Stock"). Upon consummation of the Transaction, Ameren will be
a public utility holding company and will own all of the issued and outstanding
common stock of UE, CIPS and CIPSCO Investment. At present, the common stock of
Ameren is owned 50% by UE and 50% by CIPSCO. No shares of Ameren Preferred Stock
have been issued. A copy of the Restated Articles of Incorporation of Ameren is
attached as Exhibit A-1.

               ii.  Arch Merger

     Solely for the purpose of facilitating the Transaction proposed herein,
Arch Merger was incorporated under the laws of the State of Missouri on August
7, 1995. The authorized capital stock of Arch Merger consists of 100 shares of
common stock, par value $.01 per share ("Arch Merger Common Stock"). Arch Merger
has, and prior to the closing of the Transaction will have, no operations other
than the activities contemplated by the Merger Agreement necessary to accomplish
the combination of Arch Merger and UE as herein described.

          d.   Ameren Services

     Prior to the consummation of the Transaction, Ameren Services will be
incorporated in Missouri to serve as the service company for the Ameren system
after the consummation of the Transaction. Ameren Services will provide UE and
CIPS, and the other companies of the Ameren system, with a variety of
administrative, management and support services.

     The authorized capital stock of Ameren Services will consist of 1,000
shares of common stock, par value $.01 per share. Upon consummation of the
Transaction, all issued and outstanding shares of Ameren Services will be held
by Ameren.
     
                                       8
<PAGE>
 
     Ameren Services will enter into a general services agreement with Ameren,
UE, CIPS and CIPSCO Investment (the "General Services Agreement"). (A copy of
the form of General Services Agreement is filed as Exhibit B-4.)


     2.   Description of Energy Sales, Facilities and Fuel

          a.   UE

               i.   General

     For the 12 months ended June 30, 1996, UE sold the following amount of
electric energy (at retail or wholesale) and sold and transported the following
amount of natural gas at retail:


<TABLE>
<CAPTION> 
<S>                                                           <C>
UE
     kWh of electric energy sold............................  34,469,818,152
           (including amounts delivered in interchange)
     Mcf of gas distributed at retail.......................      20,615,638
           (including transportation of customer owned gas)
</TABLE>

               ii.  Electric Generating Facilities

     UE's generating facilities as of June 30, 1996, all of which are 100% owned
by UE, were as follows:

                                       9
<PAGE>
 
                             GENERATING CAPABILITY
                            Union Electric Company
<TABLE>
<CAPTION>
 
                                        Net Capability-mW
                                        -----------------
Station Name & Unit No.     Unit Type    Summer   Winter   Fuel Type
- -------------------------  -----------  --------  -------  ---------
<S>                        <C>          <C>       <C>      <C>
 
Callaway                     Nuclear        1125     1177   Uranium
 
Canton Diesels              Internal
                           Combustion          4        4     Oil
 
Fairgrounds Combustion     Combustion
Turbine                     Turbine           55       61     Oil
 
Howard Bend Combustion         Jet
Turbine                      Engine           43       47     Oil
 
Keokuk                        Hydro          125      126    Water
 
Kirksville Combustion      Combustion
Turbine                     Turbine           13       14     Gas
 
Labadie 1                     Steam          573      575    Coal
 
Labadie 2                     Steam          573      575    Coal
 
Labadie 3                     Steam          575      577    Coal
 
Labadie 4                     Steam          575      577    Coal
 
Meramec 1                     Steam          131      134  Coal/Gas
 
Meramec 2                     Steam          131      134  Coal/Gas
 
Meramec 3                     Steam          278      280  Coal/Gas
 
Meramec 4                     Steam          333      342    Coal
 
Meramec Combustion         Combustion
Turbine                     Turbine           55       61     Oil
 
Mexico Combustion          Combustion
Turbine                      Turbine          55       61     Oil
 
Moberly Combustion         Combustion
Turbine                      Turbine          55       61     Oil
 
Moreau Combustion          Combustion
Turbine                     Turbine           55       61     Oil
 
Osage                         Hydro          212      208    Water
 
Portable Diesel             Internal
                           Combustion          1        1     Oil
 
Rush Island 1                 Steam          583      584    Coal
</TABLE> 

                                      10
<PAGE>
 
<TABLE>
<CAPTION>

                                        Net Capability-mW
                                        -----------------
Station Name & Unit No.     Unit Type    Summer   Winter   Fuel Type
- -----------------------    -----------  --------  -------  ---------
<S>                        <C>           <C>      <C>      <C>
Rush Island 2                 Steam          583      584    Coal

Sioux 1                       Steam          470      477    Coal

Sioux 2                       Steam          470      477    Coal

Taum Sauk                    Pumped          350      275    Water
                             Storage

Venice                        Steam          429      439   Gas/Oil

Venice Combustion          Combustion
 Turbine                     Turbine          25       30     Oil

Viaduct Combustion         Combustion
 Turbine                     Turbine          25       30     Gas
                                           -----    -----
TOTAL                                      7,902    7,972
</TABLE>

As of June 30, 1996, UE had a total net generating capability of 7,972 mW
available.

     During 1995, 70.6% of the electricity generated by units owned by UE was
produced by coal-fired generating units, 24.5% by a nuclear generating unit, and
4.9% by other types of generating units.

     UE's 1995 summer peak load, which occurred on August 18, 1995, was 7,965 mW
and its 1995 winter peak load, which occurred on February 2, 1996, was 6,480 mW,
exclusive of off-system transactions.

               iii.  Electric Transmission and Other Facilities

     As of December 31, 1995, UE's transmission system included 898 circuit
miles of 345 kV line, 90 circuit miles of 230 kV line, 726 circuit miles of 161
kV line, 1,408 circuit miles of 138 kV line, and 143 circuit miles of 110 kV
line.

     The bulk of UE's high voltage transmission system is located in the State
of Missouri. As of December 31, 1995, UE's transformer capacity in transmission
substations totaled 22,133,000 kVA and its transformer capacity in distribution
substations totaled 22,856,000 kVA. See also Item 1.B.2.b.iii. infra. A map of
UE's major transmission lines is filed as Exhibit E-4.


     UE's steam heating property at June 30, 1996 consisted of facilities used
to provide steam for heating to the Missouri State Capitol complex in Jefferson
City, Missouri. The facilities have a net book value of $400,000. Steam is
supplied from boilers installed at the

                                      11
<PAGE>
 
plant. The boilers have a capability of 27,600 pounds of steam per hour under
sustained load.

     Other assets owned by UE include an electric distribution system located
throughout its service area, and property, plant and equipment supporting its
electric and gas utility functions.

               iv.  Fuel Sources

     UE's electric generation by fuel type for each of the last five calendar
years, and the average cost of such fuels to UE per kWh generated, are set forth
below :

<TABLE>
<CAPTION>
 
 
         % of Net Generation
        --------------------
                                
                                 Fuel Cost
Year    Nuclear  Coal  Other  (Cents per kWh)
- ----    -------  ----  -----  ---------------
<S>     <C>      <C>   <C>    <C>
1995      24.5   70.5   5.0        1.068
 
1994      29.7   65.0   5.3        1.064
 
1993      28.0   65.3   6.7        1.331
 
1992      26.2   69.1   4.7        1.310

1991      30.0   66.7   3.3        1.348
</TABLE>

     COAL.  Because of uncertainties of supply due to potential work stoppages,
equipment breakdowns and other factors, UE has a policy of maintaining a coal
inventory of 75 days, based on normal annual burn practices.

     NUCLEAR.  The components of the nuclear fuel cycle required for nuclear
generating units are as follows: (1) uranium; (2) conversion of uranium into
uranium hexafluoride; (3) enrichment of uranium hexafluoride; (4) conversion of
enriched uranium hexafluoride into uranium dioxide and the fabrication into
nuclear fuel assemblies; and (5) disposal and/or reprocessing of spent nuclear
fuel.

     UE has agreements to fulfill its needs for uranium, enrichment, and
fabrication services through 1999. UE's agreements for conversion services are
sufficient to supply the Callaway Plant through 1997. Additional contracts will
have to be entered into in order to supply nuclear fuel during the remainder of
the life of the Callaway Plant, at prices which cannot now be accurately
predicted. The Callaway Plant normally requires re-fueling at 18-month intervals
and re-fuelings are presently scheduled for the fall of 1996 and the spring of
1998.

     Under the Nuclear Waste Policy Act of 1982, the U.S. Department of Energy
("DOE") is responsible for the permanent storage and disposal of spent nuclear
fuel. DOE currently charges one mill per kilowatt-hour sold for future disposal
of spent fuel. Electric rates charged to customers provide for recovery of such
costs. DOE is not expected to have

                                      12
<PAGE>
 
its permanent storage facility for spent fuel available until at least 2015. UE
has sufficient storage capacity at the Callaway Plant site until 2004 and has
viable storage alternatives under consideration. Each alternative will likely
require NRC approval and may require other regulatory approvals. The delayed
availability of DOE's disposal facility is not expected to adversely affect the
continued operation of the Callaway Plant.

     OIL AND GAS.  The actual and prospective use of such fuels is minimal, and
UE has not experienced and does not expect to experience difficulty in obtaining
adequate supplies.

               v.  Gas Facilities

     UE serves approximately 120,000 gas customers. About 18,000 of these
customers are in Illinois, in the Alton area ("Alton System"). The remainder of
UE's customers are in Central, Eastern and Southeastern Missouri. UE also buys
gas for two of its baseload electric generating plants, Meramec and Venice, and
for two of its combustion turbine units. UE's gas system is connected to four
interstate pipelines (Panhandle Eastern Pipe Line Company ("PEPL"), Texas
Eastern Transmission Corporation ("TETCO"), Natural Gas Pipeline Company of
America ("NGPL") and Mississippi River Transmission Corporation ("MRTC")) and to
two intrastate pipelines, Illini Pipeline ("IP") and Missouri Pipeline Company
("MPC"). MRTC, IP and, indirectly, NGPL serve the Alton System. UE purchases all
of its gas supply from producers, gatherers and marketers, and transports it on
one or more of the connected pipelines. UE has no on-system storage capability.
UE currently is operating three propane air facilities, one of which is in
Illinois. UE's peak day firm gas load is approximately 190,000 MCF with an
annual retail sales throughput of 16 BCF. SEE ALSO Item 1.B.2.b.v. infra.

          b.  CIPSCO and CIPS

               i.  General

     For the 12 months ended June 30, 1996, CIPS sold the following amount of
electric energy (at retail or wholesale) and sold and transported the following
amount of gas at retail:

<TABLE>
<S>                                                      <C>
kWh of electric energy sold
      (including amounts delivered in interchange)       13,988,215,722

Mcf of gas distributed at retail
      (including transportation of customer owned gas)       25,196,065
</TABLE>

               ii.  Electric Generating Facilities

     CIPS's generating facilities as of June 30, 1996, all of which are 100%
owned by CIPS, were as follows:

                                      13
<PAGE>
 
                       GENERATING CAPABILITY
              Central Illinois Public Service Company

<TABLE>
<CAPTION>
 
                                       Net Capability-mW
                                       -----------------
Station Name & Unit No.    Unit Type    Summer   Winter   Fuel Type
- -----------------------    ---------   -------   ------   ---------
<S>                        <C>         <C>       <C>      <C>
Coffeen 1                    Steam        340      340       Coal
                                                          
Coffeen 2                    Steam        560      560       Coal
                                                          
Grand Tower 3                Steam         82       82       Coal
                                                          
Grand Tower 4                Steam        104      104       Coal
                                                          
Hutsonville 3                Steam         76       77       Coal
                                                          
Hutsonville 4                Steam         77       79       Coal
                                                          
Hutsonville                 Internal                      
Diesel                     Combustion       3        3        Oil
                                                          
Meredosia 1                  Steam         62       64       Coal
                                                          
Meredosia 2                  Steam         62       64       Coal
                                                          
Meredosia 3                  Steam        215      215       Coal
                                                          
Meredosia 4                  Steam        168      174        Oil
                                                          
Newton 1                     Steam        555      554       Coal
                                                          
Newton 2                     Steam        555      555       Coal
                                        -----    -----    
TOTAL                                   2,859    2,871
</TABLE>

As of June 30, 1996, CIPS had a total generating capability of 2,871 mW.

     CIPS' 1995 summer peak load, which occurred on August 14, 1995, was 2,319
mW and its 1995 winter peak load, which occurred on February 2, 1996, was 1,978
mW, exclusive of off-system transactions. For the year ended December 31, 1995,
approximately 99% of CIPS' kWh production was obtained from coal-fired
generation and approximately 1% from oil-fired generation.

               iii.  Electric Transmission and Other Facilities

     As of December 31, 1995, the CIPS transmission system consisted of 290
circuit miles of 345 kV lines, 48 circuit miles of 230 kV lines, 58 circuit
miles of 161 kV lines and 1,477 circuit miles of 138 kV lines. As of the same
date, CIPS's transmission substations had a combined capacity of 16,187,643 kVA
and the distribution substations had a combined capacity of 3,032,360 kVA. All
of these facilities are located within the state of Illinois. A map of CIPS's
major transmission lines is attached as Exhibit E-6.

                                      14
<PAGE>
 
     CIPS also owns or leases other physical properties, including real
property, and other facilities necessary or appropriate to conduct its
operations.

               iv.  Fuel Sources

     CIPS's electric generation by fuel type for each of the last five calendar
years, as well as the average cost to CIPS of these fuels per kWh generated, are
set forth below:
<TABLE>
<CAPTION>

      % of Net Generation
  --------------------------
                                 Fuel Cost
  Year     Coal      Oil      (Cents per kWh)
  ----     ----      ---      ---------------
<S>       <C>     <C>          <C>
 
  1995      99+  (less than)1      1.798
                            
  1994      99+  (less than)1      1.750
                            
  1993      99+  (less than)1      1.727
                            
  1992      99+  (less than)1      1.787

  1991      99+  (less than)1      1.778
</TABLE>

     The amount of coal supplies on hand at the generating stations of CIPS
varies from time to time. CIPS generally attempts to maintain a 65-day supply.
Currently, approximately 75% of the annual coal requirements of the generating
facilities of CIPS are being met by long-term coal contracts expiring at various
dates from 1997 to 2010. As contracts approach their expiration, or when
appropriate, CIPS evaluates alternative supply arrangements based on then
current and expected market conditions for coal. CIPS believes there are
adequate supplies of coal reasonably available to supply its existing generating
units with the quantity and quality of coal required for the foreseeable future.
The actual and prospective use of oil as fuel is minimal and CIPS has not
experienced and does not expect to experience difficulty in obtaining adequate
supplies.

               v.  Gas Facilities

     CIPS serves approximately 167,000 gas customers in 267 communities
throughout Central and Southern Illinois.  CIPS' gas system is connected to six
interstate pipelines, three of which also serve UE:  PEPL, TETCO, NGPL,
Trunkline Gas Company ("TRKL"), Texas Gas Transmission Corporation ("TGT"), and
Midwestern Gas Transmission Company ("MW").  CIPS is also connected with two
other Illinois gas distribution utilities:  Northern Illinois Gas Company
("NIGAS") and Central Illinois Light Company ("CILCO").  CIPS purchases over 99%
of its gas supply from producers, gatherers and marketers and transports it on
one or more of the connecting pipelines.  CIPS has four active on-system storage
fields:  Ashmore, Sciota, Johnston City and Belle Gent.  CIPS also has one
propane-air facility at Quincy.  CIPS' peak day firm gas load is approximately
300,000 MCF with an annual retail sales throughput of approximately 23 BCF.

                                      15
<PAGE>
 
          c.   Transferred Utility Facilities

     As part of the Transaction, UE expects to transfer to CIPS the Transferred
Utility Facilities subject to approval of the ICC and MPSC. The transfer will
include all of UE's electric and gas facilities used to provide retail service
in Illinois. It does not include any generation or transmission facilities.

     The electric facilities to be transferred include electric substations in
East St. Louis and Alton, Illinois, plus attendant equipment. In terms of gas
facilities to be transferred, UE's Alton System is basically contiguous to the
southern end of CIPS' Western Division gas system. The Alton System is served by
two pipelines, MRTC and IP. CIPS has significant transportation capacity on
NGPL, which is the pipeline through which gas flows into IP. MRTC is also
interconnected with TRKL, another pipeline on which CIPS holds significant
capacity, and with NGPL. Thus, the Alton System can easily be integrated into
CIPS' existing gas supply and operations. Subject to obtaining any necessary
consents, UE will transfer to CIPS the MRTC, IP and NGPL transportation and
storage contracts that UE has acquired to serve its Illinois gas customers that
are in effect at the time of the Mergers. UE's current supply agreements expire
prior to the expected date for consummation of the Transaction, but any existing
supply agreements in effect at that time will be transferred to CIPS.

     Currently, UE provides approximately 500 mW of firm power and 70 mW of
interruptible power to its Illinois customers. After the Transaction, UE expects
to provide to CIPS, through a System Support Agreement, the same amount of power
it currently provides to its Illinois retail customers. This power will be
priced to CIPS at a rate which will recover the same amount of UE's power costs
which is now being recovered from UE's Illinois customers. The System Support
Agreement is subject to approval by the FERC.

     3.   Nonutility Interests of UE and CIPSCO

          a.  UE

     UE's only nonutility subsidiary is UEDC, which constituted less than 1/4 of
1% of UE's assets at June 30, 1996 and provided less than 1/4 of 1% of UE's
revenues in 1994, 1995 and the 12 months ended June 30, 1996. At June 30, 1996,
UEDC had assets of $10,278,477.

     A corporate chart of UE and its subsidiaries, showing their nonutility
interests, is filed as Exhibit E-8.

          b.  CIPSCO

     CIPSCO conducts its unregulated nonutility businesses through CIPSCO
Investment. CIPSCO Investment was formed for the purpose of managing nonutility
investments and providing investment management services to CIPSCO and its
affiliates. CIPSCO Investment's investment portfolio principally includes money-
market investments, common stocks, mutual funds, hedged preferred stocks, hedged
common stocks, and equity interests

                                      16
<PAGE>
 
in lease transactions and energy related projects. Investments are held in the
four subsidiaries of CIPSCO Investment: CIPSCO Securities Company, CIPSCO
Leasing Company, CIPSCO Energy Company and CIPSCO Venture Company. CIPSCO
Securities Company invests in marketable securities, CIPSCO Leasing Company
invests in leveraged leases for various equipment and real estate, CIPSCO Energy
Company invests in electric generation projects under leveraged leases and a
limited partnership, and CIPSCO Venture Company makes investments within the
CIPS utility service territory.

     Together, CIPSCO's nonutility subsidiaries constituted less than 7% of
CIPSCO's assets on a consolidated basis at June 30, 1996 and provided less than
2% of CIPSCO's consolidated operating revenues in each of 1994, 1995 and for the
twelve months ended June 30, 1996. At June 30, 1996, CIPSCO Investment had
assets of $118.3 million out of total consolidated assets of CIPSCO of
approximately $1.8 billion, and operating revenues (excluding intercompany
eliminations) of $12.4 million out of consolidated operating revenues of
approximately $879.5 million.

     A corporate chart of CIPSCO and its subsidiaries, showing their nonutility
interests, is filed as Exhibit E-9.

     4.   Present Electric Coordination

     CIPS and UE are currently physically interconnected at nine tie points,
four of which have two-way transfer capability where power and energy can flow
freely in either direction and five of which are operated as radial ties where
the power and energy can be moved in only one direction. The interconnections
are shown on Exhibit E-2. The interconnections with two-way transfer capability
have a maximum total transfer capability of 791 mW. With the transfer of UE's
Illinois service area and its associated electric properties to CIPS, the
companies will have an additional amount of one-way tie capability, in excess of
1,000 mW, which is for power delivery from UE to CIPS.

     CIPS is planning to build a new interconnection with Iowa Electric Services
("IES"). CIPS will build a 138,000 volt line from Macomb, Illinois, to Niota,
Illinois. CIPS and IES will jointly install a substation to transform the
voltage from 138,000 volts to 161,000 volts. IES will construct a 161,000 volt
line into Iowa to its Burlington generating station. This project should be
completed in 1998. UE is planning to reconductor the two Cahokia-Central 138,000
volt lines by 1997. Also, UE is planning to build a 345,000 volt line from its
Sioux generating plant to Roxford, Illinois, by 1999. These lines, planned
before CIPSCO and UE agreed to the Transaction, will increase transmission
capacity, eliminate the minimal existing transmission constraints and enhance
electric coordination of the CIPS and UE systems.

     CIPS and UE intend to jointly dispatch their generating resources. UE and
CIPS have considered the transfers resulting from joint dispatch, and have
concluded that these changes should not cause constraints on the UE/CIPS
interfaces or materially change the transfer capability that would exist if
there were no joint dispatch.

                                      17
<PAGE>
 
     UE and CIPS are members of the Illinois-Missouri Pool with Illinois Power
Company. In addition, both utilities are members of Mid-America Interconnected
Network, Inc. ("MAIN"), which is one of the nine regional reliability councils
of the North American Electric Reliability Council ("NERC"). Membership in these
groups involves the coordination of long-range system planning and day-to-day
operations. In addition, both companies have a number of interchange agreements
with other utilities.

     UE and CIPS are also interconnected with other electric utilities as
outlined below:

 
                            DIRECT TRADING PARTNERS
                              UE/CIPS COMBINATION
 
Union Electric Company                  Central Illinois Public Service Company
- ----------------------                  ---------------------------------------
 
 .  AP&L (Entergy)                       .  Commonwealth Edison
 .  Associated Electric Cooperative      .  Public Service of Indiana
 .  Central Illinois Public Service      .  Indiana Michigan Power (AEP)
 .  City of Columbia (MO)                .  Northern Indiana Public Service
 .  Interstate Power                     .  Central Illinois Light
 .  Mid American Energy                  .  Wabash Valley Power Association
 .  Kansas City Power & Light            .  City Water Light & Power
 .  Western Resources                        (Springfield, IL)
 .  Missouri Public Service              .  Illinois Municipal Electric Agency
 .  Northern States Power                .  Indiana Municipal Power Agency
 .  Public Service of Oklahoma           .  Soyland Electric Cooperative
 .  St. Joseph Light & Power             .  Southern Illinois Power Cooperative
 .  Southwestern Power Administration    .  Union Electric Company

                           Common to Both Companies
                           ------------------------
 
                         .  Electric Energy, Inc.
                         .  IES Utilities
                         .  Illinois Power
                         .  Kentucky Utilities
                         .  Tennessee Valley Authority

     5.  Present Gas Coordination

     Most of CIPS' gas systems are currently integrated by way of physical
interconnects and contractual arrangements. This part of CIPS' overall system
comprises the areas that are served by PEPL, TRKL, TETCO and NGPL, and
represents over 80% of the total peak day demand of CIPS' entire gas system.
UE's Alton System is basically contiguous to the southern end of CIPS' Western
Division gas system. The Alton System is served by two pipelines, MRTC and IP.
CIPS has significant transportation capacity on NGPL, which is the pipeline
through which gas flows into IP. MRTC is also interconnected with TRKL, another
pipeline on which CIPS holds significant capacity, and with NGPL. Thus, the
Alton System can easily be integrated into CIPS' existing gas supply and
operations.

                                      18

<PAGE>
 
     UE's gas system consists of four distribution systems, each of which is
served by a major interstate pipeline.  In addition, two of these distribution
systems are served by intrastate pipelines.  The largest system is located in
central and eastern Missouri and is connected to the interstate pipeline PEPL
and to the intrastate carrier MPC.  Two systems are located in southeast
Missouri and are served by the interstate pipelines TETCO and NGPL.  UE's
remaining gas system is located in the Alton, Illinois area and is connected to
the interstate pipeline MRTC and the intrastate pipeline IP.

     For further discussion of the gas systems, see Item 3.A.2.b.ii.(B) infra.

C.   Description of Transaction and Statement as to Consideration

     1.   Background

     Since the late 1980s, the management of UE has periodically analyzed
various potential strategic options that might be available to UE, including
possible business combinations with other utilities.  During this time since the
late 1980s, the management of UE looked at substantially all of the utilities of
significant size and with service areas proximate to the main service areas of
UE, and periodically briefed the UE Board on such matters.  None of the other
utilities appeared to offer strategic and operational synergies as attractive as
those that could be realized through a merger with CIPSCO.  The physical
proximity of the service areas of CIPS and UE, the compatibility of and
similarity between UE's and CIPSCO's operations, the familiarity with CIPSCO
resulting from various cooperative transactions including power purchases and
sales, the joint ownership of EEI, and the excellent reputation of CIPSCO's
management, made CIPSCO the natural first choice for a combination partner for
UE.

     Since the late 1980s, the management of CIPS (and later CIPSCO) has
periodically analyzed various potential strategic options that might be
available, including possible business combinations with other utilities.
CIPSCO management looked at substantially all utilities of significant size and
with service areas proximate to the service area of CIPS, as well as several
other utilities with Midwestern operations, and periodically briefed the Boards
of CIPS and CIPSCO on such matters.  During 1994, CIPSCO management and
representatives of the investment banking firm Morgan Stanley & Co. ("Morgan
Stanley") discussed generally the utility merger and acquisition environment
with the CIPSCO Board.  The CIPSCO Board was briefed at its December 6, 1994
meeting with respect to the fact that CIPSCO management was reviewing various
strategic alternatives.  As a continuation of such reviews, in May 1995, CIPSCO
management concluded that no other potential merger partner provided a better
overall strategic fit than did UE on the basis of factors such as:  low cost
structure, competitive energy rates, strong credit ratings, potential merger-
related cost savings, possible economies of scale, marketing potential and
similar common stock trading characteristics.  These reasons, combined with the
compatibility of and similarity between CIPS' and UE's operations, CIPS' prior
experience working with UE in the context of power purchases and sales, service
restoration following major storms, joint ownership of EEI and the excellent
reputation of UE's management team made UE the natural combination partner for
CIPSCO.

                                      19

<PAGE>
 
     At its June 6, 1995 Board meeting, CIPSCO management reviewed possible
strategic alternatives for CIPSCO, including a business combination with UE, the
possibility of remaining an independent company and the possibility of a
combination with other Midwestern utilities. There was a review of the
consequences of CIPSCO remaining an independent company. Management reported
that it had sought advice from the investment banking firm of Morgan Stanley and
the law firm of Jones, Day, Reavis & Pogue with respect to strategic
alternatives.  At the June 6, 1995 meeting, the CIPSCO Board authorized
management to continue further studies regarding a business combination with UE.
After this meeting, no alternative merger scenarios were seriously considered by
CIPSCO management.

     Mr. Charles W. Mueller, President and Chief Executive Officer of UE, and
Mr. Clifford L. Greenwalt, President and Chief Executive Officer of CIPSCO, have
had for many years a business and social relationship, and have spoken
periodically by telephone and in person at business and social occasions.
Messrs. Greenwalt and Mueller have, in the course of their business dealings
over the years, noted the similarities of UE and CIPSCO listed above.  In June
of 1995, a series of discussions occurred between Messrs. Mueller and Greenwalt
which ultimately resulted in a meeting on June 19, 1995 between Messrs. Mueller
and Greenwalt, at which the two companies' views of the future of the utility
industry were discussed.  The two men discussed in a very preliminary fashion
the concept of a business combination between UE and CIPSCO.  At such meeting,
the concept of a holding company structure for a potential business combination
was discussed, and Messrs. Greenwalt and Mueller also identified the issues of
management succession, board composition and the location of the headquarters as
significant points to be agreed upon.

     After the June 19, 1995 meeting, CIPSCO informed Morgan Stanley and Jones,
Day, Reavis & Pogue that CIPSCO was contemplating a business combination with
UE.  Additionally, during this period, Mr. Mueller orally briefed individual UE
directors on the reviews and discussions which had taken place.

     On June 21, 1995, officers of UE and CIPSCO, including Donald E. Brandt,
Senior Vice President, Finance & Corporate Services and William E. Jaudes, Vice
President and General Counsel, of UE, and William A. Koertner, Vice President,
and Craig D. Nelson, Treasurer, of CIPSCO, held discussions with respect to
potential synergies that could result from a potential business combination
transaction.  Following such meeting the companies entered into a
confidentiality agreement, pursuant to which the parties agreed to exchange
nonpublic information with a view toward exploring a possible business
combination.

     Shortly after the June 21, 1995 meeting, UE engaged the law firm of
Wachtell, Lipton, Rosen & Katz to advise it with respect to the potential
transaction.

     The parties agreed that it was desirable to arrange an introductory meeting
of the parties' respective management teams and advisors to discuss, among other
things, the due diligence and negotiation process.

     On July 14, 1995, Messrs. Brandt, Jaudes, Koertner and Nelson, together
with other personnel from UE and CIPSCO, as well as their financial and legal
advisors, held an

                                      20

<PAGE>
 
introductory meeting to discuss, among other things, a timetable for
accomplishing the tasks required to negotiate, prepare and execute a merger
transaction between the two companies.  Representatives of the Management
Consulting Division of Deloitte & Touche LLP ("Deloitte & Touche"), which had
been jointly retained by UE and CIPSCO, were also present at such meeting.  At
the July 14 meeting, working groups composed of representatives of both
companies were formed to examine various issues, including structure, financial
modeling, regulatory considerations, integration of employee benefit plans,
communications and an analysis of synergies. Deloitte & Touche was engaged to
assist the senior managements of UE and CIPSCO and certain employees designated
by them in identifying and quantifying the potential cost savings from synergies
resulting from the proposed merger.

     On July 26, 1995, Messrs. Brandt, Jaudes, Koertner and Nelson, as well as
other personnel from UE and CIPSCO, together with their respective financial
advisors, held a meeting for the purpose of conducting due diligence and
discussing further the potential synergies that could be achieved by a business
combination transaction (such as cost savings from economies of scale and
reduced electric production and gas purchase costs, reduction in operating and
maintenance expenses and elimination of duplicative administrative
expenditures), and the legal and regulatory implications of alternative
combination structures.

     On August 1, 1995, CIPSCO management, Morgan Stanley, Deloitte & Touche,
legal counsel and Synergy Consulting Services Corporation ("Synergy
Consulting"), an independent nuclear consultant retained by CIPSCO, briefed the
CIPSCO Board on various matters identified below relating to a business
combination with UE.

     At that meeting, management and Deloitte & Touche reported the analyses of
the potential synergies that could be achieved by a combination with UE
presenting assumptions underlying their analyses.  This presentation gave an
overview of the types of synergy savings (financial, regulatory and operational)
that could be achieved by a combination and emphasized that the identified
synergies were all directly related to a possible merger and did not include
other types of savings that might be achieved without a merger.  An overview of
categories of synergy savings was given which identified the following areas for
potential synergies:  personnel reductions, corporate and administrative
programs, electric production and gas supply costs and purchasing economies for
such items as materials, supplies and contract services.  The analyses assumed a
period of 1997 to 2006, that the combination would result in a registered public
utility holding company, continuation of current regulation of the utility
industry, that management and operational integration of corporate, distribution
and production support functions would occur without total physical
centralization, that labor savings would be achieved exclusively through
attrition and phased in over time, and that the costs to achieve the savings
would be incurred over the first two years.  The synergy analyses were prepared
by management of CIPSCO and UE with the assistance of Deloitte & Touche based on
information provided by each company.

     At the August 1, 1995 meeting of the CIPSCO Board, legal counsel presented
information as to the regulatory approvals that would be required for a
combination with UE, the standards of review to be applied by the various
regulatory bodies, implications

                                       21
<PAGE>
 
under the Act of various structures and other matters.  Morgan Stanley presented
an analysis of UE and reported on its due diligence activities.  Synergy
Consulting presented a report containing the results of its evaluation of the
Callaway nuclear generating station of UE and identified and characterized for
the CIPSCO Board generic nuclear power plant business risks.  Synergy Consulting
concluded that the Callaway Plant ranked at the top of the industry's nuclear
generating plants in all respects, was in good condition and was well managed
and also concluded that the plans for decommissioning the plant at the end of
its useful life were adequate.  In the course of its evaluation Synergy
Consulting reviewed documentation containing relevant operating statistics
(capacity factors, production costs and regulatory performance) and reviewed
external performance evaluations of the plant including Institute of Nuclear
Power Operations (INPO) ratings, NRC Systematic Assessment of Licensee
Performance (SALP) ratings and other ratings based on publicly available
industry benchmarking data of nuclear station performance.  Each of these
ratings put the Callaway Plant among the highest of the applicable rating
categories for the past five years.  The Synergy Consulting evaluation took into
account specific risks associated with the Callaway Plant in the following
categories: production, costs, organization and management and decommissioning
plan.  Finally, Synergy Consulting briefed the CIPSCO Board on the generic risks
associated with nuclear generating plants, including premature permanent plant
shutdown, temporary plant shutdown, uneconomic plant operation, inability to
extend plant life, unanticipated costs, consequences of a nuclear accident,
changes in regulations, fuel storage and fuel disposal and decommissioning
costs.

     In the ten days following August 1, 1995, the representatives of each party
continued their work with respect to the synergies analyses, business plans,
legal structures, regulatory plans, due diligence and employee benefits.  In
addition, discussions commenced between the UE management and UE's investment
banking firm, Goldman, Sachs & Co. ("Goldman Sachs") on the one hand, and CIPSCO
and Morgan Stanley on the other hand, with respect to management negotiation of
the exchange ratios, and between counsel for CIPSCO and counsel for UE, with
respect to the terms of the draft merger agreement and the terms of possible
stock option agreements.

     On August 8, 1995, the UE Board met and received detailed information and
advice from Goldman Sachs and legal counsel, as well as a detailed report from
management on the merger negotiations.  The UE Board also received a report on
the analysis of potential synergies, including discussions of potential cost
savings from economies of scale and decreased electric production and gas
purchase costs and elimination of duplicative administrative expenses.  Goldman
Sachs reviewed financial and other information concerning UE and CIPSCO and the
status of negotiations with respect to an exchange ratio.  Counsel outlined in
detail the terms and conditions of the draft merger agreement and proposed stock
option agreements. Counsel also reviewed the handling of various other issues
relating to the Transaction, such as the composition of the Ameren Board and the
location of the corporate headquarters of Ameren.  Counsel then reviewed the
implications of adopting a registered holding company structure under the Act,
including the possibility that divestiture of the combined entity's gas and
certain nonutility operations would be required.  The UE Board discussed the
significant potential benefits from a combination to shareholders and customers
of CIPSCO and UE.

                                      22

<PAGE>
 
     On August 8, 1995, the CIPSCO Board met and received detailed advice from
Morgan Stanley and legal counsel. The CIPSCO Board also received an updated
briefing from management and Deloitte & Touche on the analysis of potential
synergies, including discussions of potential cost savings from economies of
scale and decreased electric production and gas purchase costs and the
elimination of duplicative administrative expenses. Morgan Stanley reviewed
financial and other information concerning UE and CIPSCO and the status of
negotiations with respect to an exchange ratio. Counsel outlined in detail the
terms and conditions of the draft merger agreement and proposed stock option
agreements. Counsel also reviewed in detail the status of negotiations on the
merger agreement and the due diligence process. Management reported on the
handling of various other issues relating to the Transaction, such as the
composition of the Ameren Board and the location of the corporate headquarters
of Ameren, the transfer of UE's Illinois utility business to CIPS and
communications plans. Legal counsel then reviewed the implications of adopting a
registered holding company structure under the Act, including the possibility
that divestiture of the combined entity's gas and certain nonutility operations
would be required. Legal counsel and management described the covenants which
would govern the operations of UE and CIPSCO prior to the effective time of the
Mergers and issues relating to employee and workforce matters which would govern
the operations of Ameren and its subsidiaries subsequent to the effective time.
The CIPSCO Board discussed the significant potential benefits from a combination
to shareholders and customers of CIPSCO and UE.

     The representatives and advisors for both parties met and spoke on numerous
occasions on August 9, 10, and 11, discussing the transaction and the related
documentation, the final terms of the Merger Agreement, including the conditions
to closing, the termination provisions, the breakup fees, the covenants which
would govern the operations of UE and CIPSCO prior to the effective time and
various other matters, such as employee benefits and workforce matters, which
would govern the operations of Ameren after the effective time. These
discussions also addressed issues relating to composition of Ameren's
management, the Ameren Board and committees of the Ameren Board. Goldman Sachs
and Morgan Stanley held further discussions with respect to an exchange ratio
and, on August 11, decided to present for their respective clients'
consideration a ratio which would result in each share of UE Common Stock being
converted into one share of Ameren Common Stock, and a ratio which would result
in each share of CIPSCO Common Stock being converted into 1.03 shares of Ameren
Common Stock.

     On August 11, 1995, at a meeting of the UE Board, Goldman Sachs and counsel
to UE described the status of the merger negotiations and the changes in the
proposed merger agreement and stock option agreements which had been made since
the August 8 meeting of the UE Board. Counsel also reviewed the handling of the
various other issues relating to the transaction, such as the composition of the
Ameren Board and the location of the headquarters of the combined entity. At the
August 11 meeting, Goldman Sachs delivered its oral opinion to the UE Board
that, as of such date and based upon the assumptions made, matters considered
and limits of review discussed therein, and in light of the proposed exchange
ratio of 1.03 shares of Ameren Common Stock per share of CIPSCO Common Stock,
the proposed exchange ratio of one share of Ameren Common Stock per share of UE
Common Stock was fair to the holders of UE Common Stock. Following discussion,
the UE Board unanimously approved the Merger Agreement and the Stock Option
Agreements (as

                                      23

<PAGE>
 
defined in the Merger Agreement) and authorized their execution.  (With respect
to the Stock Option Agreements, see Item 1.C.4. below.)

     On August 11, 1995, the CIPSCO Board met and received advice from Morgan
Stanley and legal counsel. Morgan Stanley reviewed various financial and other
information and rendered to the CIPSCO Board its oral opinion, confirmed in a
written opinion dated August 11, 1995, to the effect that, as of the date of
said opinion and based upon and subject to the matters stated therein, the
proposed exchange ratio of 1.03 shares of Ameren Common Stock per share of
CIPSCO Common Stock, in light of the exchange ratio of one share of Ameren
Common Stock to be received by shareholders of UE for each share of UE Common
Stock, was fair to the holders of CIPSCO Common Stock from a financial point of
view. Legal counsel reviewed the final forms of Merger Agreement and Stock
Option Agreements and other documents with the CIPSCO Board. The CIPSCO Board
discussed the advice they had received at the various CIPSCO Board meetings and
the significant potential benefits to shareholders and customers of CIPSCO which
would result from a combination of CIPSCO and UE. After such discussions, the
CIPSCO Board approved the Merger Agreement and the Stock Option Agreements and
authorized their execution. One director of CIPSCO, Mr. John L. Heath, voted
against approval of the Merger Agreement noting that in light of CIPSCO's strong
financial position he was not in favor of the merger. He indicated that if at a
later date it became desirable for CIPSCO to become larger, he would prefer that
CIPSCO pursue a merger involving an entity smaller than itself. Following the
meetings of the UE Board and the CIPSCO Board, the Merger Agreement and the
Stock Option Agreements were executed.

     2.   Benefits of the Transaction

     UE and CIPSCO believe that the Transaction offers the following significant
strategic and financial benefits to each company and to their respective
shareholders, as well as to their employees and customers and the communities in
which they do business:

     --   Cost Efficiencies to Help Maintain Competitive Rates--Ameren will be
          more effective in meeting the challenges of the increasingly
          competitive environment in the utility industry than either UE or
          CIPSCO standing alone. The Transaction will create the opportunity for
          strategic, financial and operational benefits for customers in the
          form of lower rates over the long term and for shareholders in the
          form of greater financial strength and financial flexibility.

     --   Integration of Corporate and Administrative Functions--Ameren will be
          able to consolidate certain corporate and administrative functions of
          UE and CIPSCO, thereby eliminating duplicative positions, reducing
          other non-labor corporate and administrative expenses and limiting or
          avoiding expenditures for administrative programs and information
          systems. A joint transition task force has examined the manner in
          which to best organize and manage the businesses of Ameren and
          identify duplicative positions in the corporate and administrative
          areas. It is anticipated that, as a result of combining staff and
          other functions, Ameren will have somewhat fewer employees within
          several

                                      24
<PAGE>
 
          years than UE and CIPSCO currently have in the aggregate. UE and
          CIPSCO are committed to achieve cost savings in the area of personnel
          reductions through attrition, strictly controlled hiring, and
          reassignment and retraining. In addition, some savings in areas such
          as insurance and regulatory costs and legal, audit and consulting fees
          should be realized.

     --   Reduced Operating Costs--The combination should result in decreased
          electric production costs through the joint dispatch of the systems.
          Natural gas supply savings through combined purchasing are also
          anticipated.

     --   Purchasing Economies--The combination of the two companies should
          result in greater purchasing power for items such as materials,
          supplies and contract services.

     --   Increased Marketing Opportunities--The combined companies will have
          enhanced opportunities for marketing in the wholesale and interchange
          markets. The combined companies will have electric interconnections
          with 28 other utility systems, enhancing opportunities to make sales
          transactions with these systems and others.

     --   More Diverse Service Territory--The combined service territories of UE
          and CIPS will be larger and more diverse than either of the service
          territories of UE or CIPS as independent entities. This increased
          geographical diversity will reduce the exposure to changes in economic
          or competitive conditions in any given sector of the combined service
          territory.

     --   Expanded Management Resources--In combination, UE and CIPSCO will be
          able to draw on a larger and more diverse mid- and senior-level
          management pool to lead Ameren forward in an increasingly competitive
          environment for the delivery of energy and should be better able to
          attract and retain the most qualified employees. The employees of
          Ameren should also benefit from new opportunities in the expanded
          organization.

     --   Community Involvement--Ameren will continue to play a leadership role
          in the economic development efforts of the communities UE and CIPS now
          serve. The philanthropic and volunteer programs currently maintained
          by the two companies will be continued.

     UE and CIPSCO believe that synergies from the Transaction will generate
substantial cost savings to Ameren, which would not be available absent the
Transaction. Estimates by the managements of UE and CIPSCO indicate that the
Transaction could result in net cost savings (that is, after taking into account
the costs incurred to achieve such savings) of approximately $686 million during
the 10-year period following the Transaction./2/

- ----------------
/2/  The savings referred to herein are the most current estimates and reflect
     further 
                                                                  (continued...)

                                      25
<PAGE>
 
Approximately 35% of these savings are expected to be achieved through personnel
reductions involving approximately 320 positions. Other potentially significant
costs savings are reduced corporate and administrative programs (31% of total
potential savings), reduced electric production costs and lower gas supply costs
(18%), and purchasing economies for materials, supplies and contract services
(11%). Achieved savings in costs are expected to inure to the benefit of both
shareholders and customers. The treatment of the benefits and cost savings will
depend on the results of regulatory proceedings in the jurisdictions in which UE
and CIPSCO operate their businesses.

     3.   Merger Agreement

     The Merger Agreement provides for CIPSCO to be merged with and into Ameren
and Arch Merger to be merged with and into UE. The Merger Agreement is
incorporated by reference as Exhibit B-1.

          a.   Consideration

     Under the terms of the Merger Agreement, upon consummation of the
Transaction:

     -    each issued and outstanding share of UE Common Stock/3/ will be
          converted into the right to receive one share of Ameren Common Stock;

     -    each issued and outstanding share of CIPSCO Common Stock/4/ will be
          converted into the right to receive 1.03 shares of Ameren Common
          Stock;

     -    each share of Arch Merger Common Stock issued and outstanding prior to
          the Transaction will be converted into one share of UE Common Stock;
          and

     -    all shares of capital stock of Ameren issued and outstanding
          immediately prior to the Transaction will be cancelled.

The outstanding shares of preferred stock of UE and CIPS will not be affected.
Based on the capitalization of CIPSCO and UE on June 30, 1996, a UE Ratio of
1.00 and a CIPSCO Ratio of 1.03, the shareholders of CIPSCO and UE would own
securities representing approximately 25.6% and 74.4%, respectively, of the
outstanding voting power of Ameren.

- ----------------
/2/ (...continued)
     study and refinement from the estimates made at the time the Mergers were
     approved by the UE and CIPSCO Boards of Directors.

/3/  Other than treasury and certain other shares which will be cancelled, and
     shares held by holders who dissent in compliance with Missouri law.

/4/  Other than treasury and certain other shares which will be cancelled, but
     including shares held by holders who dissent in compliance with
     Illinois law.

                                      26
<PAGE>
 
          b.  Other Terms

     The Transaction is subject to customary closing conditions, including the
receipt of the requisite shareholder approvals of CIPSCO and UE (which have been
obtained) and all necessary governmental approvals (MPSC, ICC, FERC and NRC, in
addition to the approval of the Commission under the Act).

          c.  Management Following the Mergers

     The Merger Agreement contains certain covenants relating to the conduct of
business by the parties pending the consummation of the Transaction. Generally,
the parties must carry on their businesses in the ordinary course consistent
with past practice, may not increase common stock dividends beyond specified
levels, and may not issue capital stock except as specified. The Merger
Agreement also contains restrictions on, among other things, charter and bylaw
amendments, capital expenditures, acquisitions, dispositions, incurrence of
indebtedness, certain increases in employee compensation and benefits, and
affiliate transactions.

     The Merger Agreement provides that, after the effectiveness of the
Transaction, Ameren's principal corporate office will remain in St. Louis,
Missouri. Ameren's board of directors will consist of a total of 15 directors,
10 of whom will be designated by UE and five of whom will be designated by
CIPSCO. Charles W. Mueller, the current Chief Executive Officer and President of
UE, will be entitled to serve as Chairman, President and Chief Executive Officer
of Ameren. Clifford L. Greenwalt, the current President and Chief Executive
Officer of CIPSCO and Chief Executive Officer and President of CIPS, will be
entitled to serve as Vice Chairman of the Board of Ameren.

     The Transaction is expected to be tax-free to UE and CIPSCO shareholders
(except as to dissenters and fractional shares) under the Internal Revenue Code
of 1986, as amended (the "Code"). CIPSCO and UE believe that the Transaction
will be treated as a "pooling of interests" for accounting purposes.

     4.   Related Agreements

     In connection with the Merger Agreement, CIPSCO and UE also entered into
the reciprocal Stock Option Agreements (the "Stock Option Agreements" which are
incorporated as Exhibits B-2 and B-3 hereto) giving each company the right to
acquire shares of the other's common stock under specified circumstances. The
Stock Option Agreements provide that no option may be exercised until all
necessary regulatory approvals (including any required approval of the
Commission under the Act) have been obtained for the acquisition of shares
pursuant to such option.

D.   Dividend Reinvestment Plan and Employee Benefits Plans

     Ameren proposes to issue and/or acquire in open market transactions, from
time to time during the first five years after the date of the Order issued by
the Commission herein, up to 19 million shares of Ameren Common Stock under
Ameren's proposed dividend

                                      27
<PAGE>
 
reinvestment plan and certain employee benefit plans described below that will
use Ameren Common Stock (collectively, the "Ameren Plans").

     1.   Sources of Common Stock and Use of Proceeds

     Any shares of Ameren Common Stock used to fund the Ameren Plans may be, at
the discretion of Ameren, authorized but unissued shares, treasury shares or
shares purchased on the open market by an independent plan administrator or
agent. As of the date of this Application/Declaration, shares are being
purchased in the open market for the existing plans of UE and CIPSCO as
described below. The decision as to whether shares are to be purchased directly
from Ameren, or in the open market or in privately negotiated transactions, will
be based on Ameren's need for common equity and any other factors considered by
Ameren to be relevant. Any determination by Ameren to alter the manner in which
shares will be purchased for the Ameren Plans, and implementation of any such
change, will comply with applicable law and Commission rules, regulations and
interpretations under the Act then in effect.

     Net proceeds from new issue or treasury shares of Ameren Common Stock
received by Ameren will be added to Ameren's general funds to be available for
general corporate purposes. Ameren will not receive any proceeds from shares
acquired in the open market or in privately negotiated transactions.

     Ameren will not use any proceeds from any new issue or treasury shares to
acquire the securities of or any interest in any exempt wholesale generator
("EWG") or foreign utility companies (as those terms are defined in Sections
32(e) and 33(a) of the Act, as amended by the Energy Policy Act of 1992), until
such time as such use shall be approved by regulation or order of the
Commission, to the extent such approval is required under the Act.

     2.   Dividend Reinvestment Plan

     UE currently has in place the DRPlus, a dividend reinvestment and stock
purchase plan (the "UE Plan") and CIPSCO has in place the CIPSCO Automatic
Dividend Reinvestment and Stock Purchase Plan (the "CIPSCO Plan"). Upon
completion of the Mergers, both the UE Plan and the CIPSCO Plan will cease and
participants therein will become participants in a newly formed Ameren dividend
reinvestment and stock purchase plan, which is referred to below as the "Ameren
DRIP." Set forth below is a description of the principal terms of the Ameren
DRIP.

     All holders of record of shares of (i) Ameren Common Stock or (ii) any UE
Preferred Stock or CIPS Preferred Stock (collectively, the "Preferred Stock,"
and together with Ameren Common Stock, the "Eligible Securities") may
participate in the Ameren DRIP. The Ameren DRIP will also permit other investors
who are not shareholders of any of these companies and may permit beneficial
owners of the companies' stock held by brokers and other custodial institutions
of such brokers and other custodial institutions, provided they have established
procedures which permit their customers to participate, to make an original
purchase of Ameren Common Stock, whereupon they will become

                                      28
<PAGE>
 
shareholders of Ameren and will be entitled to participate in the Ameren DRIP
like other shareholders. The purpose of the Ameren DRIP will be, among other
things, to provide holders of Eligible Securities and other investors with a
simple, convenient and economical method of purchasing shares of Ameren Common
Stock through reinvestment of dividends and cash investments. The Ameren DRIP is
designed to encourage and facilitate broader ownership of Ameren Common Stock.
Full investment of funds will be possible under the Ameren DRIP, subject to any
minimum and maximum purchase limits imposed under the Ameren DRIP, because the
Ameren DRIP will permit fractional as well as whole shares to be credited to a
participant's account. The Ameren DRIP will also provide Ameren with a means to
increase ownership by small, long-term investors and, to the extent original
issue shares are used, to raise equity capital.

     A full statement of the provisions of the Ameren DRIP is included in
Ameren's Post-Effective Amendment on Form S-3 to the Form S-4 Registration
Statement (incorporated as Exhibit C-3 hereto).

     3.   Employee Benefit Plans

          a.  Long Term Incentive Plan

     Pursuant to the Merger Agreement, it was agreed that Ameren would adopt a
stock compensation plan ("Ameren LTIP") to replace the UE Long-Term Incentive
Plan of 1995 (the "LTIP") subject to approval by shareholders.

     The purpose of the Ameren LTIP is to enable Ameren and its subsidiaries and
other affiliates (as defined in the Ameren LTIP) to attract, retain and motivate
officers and employees and to provide Ameren and its affiliates with the ability
to provide incentives directly linked to the profitability of Ameren's
businesses, increases in shareholder value and the enhancement of customer
service.

     The Ameren LTIP will provide for the grant of stock options, stock
appreciation rights, restricted stock, performance units and such other awards
based upon Ameren Common Stock as Ameren's Board may determine, subject to
shareholder approval. Ameren will reserve four million shares for issuance
pursuant to the Ameren LTIP.

     The Ameren LTIP will be designed to comply with Code limits on the ability
of a public company to claim tax deductions for compensation paid to certain
highly compensated executives. Section 162(m) of the Code generally denies a
federal income tax deduction for annual compensation exceeding $1,000,000 paid
to the Chief Executive Officer and the four other most highly compensated
officers of a public company. Certain types of compensation, including some
performance-based compensation, are generally excluded from this deduction
limit. While Ameren believes compensation payable pursuant to the Ameren LTIP
will be deductible for federal income tax purposes under most circumstances,
compensation not qualified under Section 162(m) of the Code may be payable under
certain circumstances such as death, disability and change in control (all as
defined in the Ameren LTIP).

                                      29
<PAGE>
 
     A full statement of the provisions of the Ameren LTIP is included in
Ameren's Form S-8 (incorporated by reference as Exhibit C-4 hereto).

          b.  Savings Plans

     UE and CIPSCO currently have five plans which involve the issuance of the
companies' common stock to participating employees as follows: the UE Savings
Investment Plan, CIPSCO Employee Long-Term Savings Plan, CIPSCO Employee Long-
Term Savings Plan - IUOE No. 148, CIPSCO Employee Long-Term Savings Plan - IBEW
No. 702 and CIPSCO Employee Stock Ownership Plan.

     It is anticipated that for an undetermined period of time after the
consummation of the Transaction all such UE and CIPSCO plans will be maintained
on substantially the same terms, except that shares of Ameren common stock will
be used instead of UE and CIPSCO common stock. Ameren will seek authorization
from the Commission as required in connection with Ameren shares to be issued
under the UE and CIPSCO plans.

     At some point subsequent to the consummation of the Transaction, it is
intended that certain of the stock-based plans of Ameren (the "Ameren Stock-
Based Benefit Plans") will replace the UE and CIPSCO benefit plans with a
similar name. Again, Ameren will seek authorization from the Commission as
required in connection with Ameren shares to be issued under the Ameren Stock-
Based Benefit Plans.

     A description of the existing plans is included in Exhibit C-5 hereto.

     4.   Solicitation of Proxies

     To the extent deemed necessary or desirable in order to comply with Rule
16b-3 under the Securities Exchange Act of 1934, to comply with Section 162(m)
of the Code or for other purposes, Ameren will solicit proxies from the holders
of its Common Stock to approve the adoption or amendment to the Ameren LTIP or
other benefit plans described above. The description of the nature of that
solicitation and the expenses (to the extent in excess of that permitted by Rule
65(b)) to be incurred in connection with any such solicitation will be provided
by amendment hereto.

Item 2.   Fees, Commissions and Expenses

     The fees, commissions and expenses paid and to be paid or incurred,
directly or indirectly, in connection with the Transaction, including the
solicitation of proxies, registration of securities of Ameren under the
Securities Act of 1933, and other related matters, are estimated as follows:

<TABLE>
 
<S>                                            <C>
 
Commission filing fee for the
  Registration Statement on Form S-4.........  $ 1,842,000
 
Accountants' fees............................      170,000
 
Legal fees and expenses relating to the Act..      350,000
</TABLE> 

                                      30
<PAGE>
 
<TABLE>
 
<S>                                            <C>
Other legal fees and expenses................    3,825,000
 
Shareholder communication and proxy              1,064,000
  solicitation...............................
 
NYSE listing fee.............................      200,000
 
Exchanging, printing, and engraving of
  stock certificates.........................      750,000
 
Investment bankers' fees and expenses........   11,100,000
 
         (Goldman Sachs:  $5,700,000)
 
         (Morgan Stanley:  $5,400,000)
 
Consulting fees related to human
  resource issues, public relations,
  regulatory support, and other
  matters relating to the
  Transaction................................      600,000
 
Other expenses of the transaction
  (excluding merger transition costs)
  and miscellaneous..........................    1,933,000
                                               -----------
                  TOTAL                        $21,834,000
</TABLE>

Item 3.   Applicable Statutory Provisions

     The following sections of the Act and the Commission's rules thereunder are
or may be directly or indirectly applicable to the Transaction:

<TABLE>
<CAPTION>
 
 
                               TRANSACTIONS TO WHICH SECTION OR
SECTIONS OF THE ACT              RULE IS OR MAY BE APPLICABLE
- -------------------            --------------------------------          
<S>                      <C>
 
4,5                      Registration of Ameren as a holding company following
                         consummation of the Transaction.
 
6(a), 7                  Issuance of Ameren Common Stock in the Transaction in
                         exchange for shares of CIPSCO Common Stock and UE
                         Common Stock; issuance of Ameren Common Stock under
                         Ameren Plans; issuance of stock of Ameren Services to
                         Ameren; approval of all outstanding intra-system debt,
                         including guaranties and support agreements.
</TABLE> 

                                      31
<PAGE>
 
<TABLE>
<CAPTION>
                                 TRANSACTIONS TO WHICH SECTION OR
SECTIONS OF THE ACT                RULE IS OR MAY BE APPLICABLE
- -------------------              ---------------------------------        
<S>                      <C>
9(a)(1), 10              Acquisitions of Ameren Common Stock in open-market
                         transactions under Ameren Plans; acquisition by Ameren
                         of stock of Ameren Services and indirect acquisition by
                         Ameren of nonutility subsidiary of UE; acquisition by
                         Ameren of CIPSCO Investment; indirect acquisition by
                         Ameren of 60% of the stock of EEI.
 
9(a)(2), 10(a),          Acquisition by Ameren of CIPS Common Stock and UE 
(b), (c) and (f)         Common Stock and indirect acquisition by Ameren of 60%
                         of the stock of EEI.
 
8, 9(c)(3), 11(b), 21    Retention by Ameren of gas operations and retention or
                         acquisition of nonutility businesses of UE, UEDC, CIPS
                         and CIPSCO Investment.
 
12                       Transfer of Transferred Utility Facilities from UE to
                         CIPS; approval of all outstanding intra-system debt,
                         including guaranties and support agreements; approval
                         of proxy solicitation for shareholder approval of
                         Ameren plans.

13                       Approval of the General Services Agreement and services
                         provided to utility and nonutility affiliates
                         thereunder by Ameren Services; incidental services
                         between UE and CIPS.

</TABLE> 
 
<TABLE>
<CAPTION>
                                 TRANSACTIONS TO WHICH SECTION OR
RULES                              RULE IS OR MAY BE APPLICABLE
- -----                            --------------------------------
<S>                      <C>
42                       Open-market purchases of Ameren Common Stock pursuant
                         to Ameren Plans.
 
43                       Transfer of Transferred Utility Facilities from UE to
                         CIPS.

 
62                       Solicitation of proxies for approval by holders of
                         Ameren Common Stock for adoption or amendment of Ameren
                         Plans.

 
65                       Proxy solicitation expenditures.
</TABLE> 

                                       32
<PAGE>
 
                             TRANSACTIONS TO WHICH SECTION OR
RULES                          RULE IS OR MAY BE APPLICABLE
- -----                        --------------------------------
80-92                    Reimbursements between and among Ameren, UE, CIPS and
                         CIPSCO Investment and other system companies under the
                         General Services Agreement.
 
83(a)                    Exemption from at-cost standards with respect to
                         certain services.
 
87(a)(3)                 Incidental Services between and among UE, CIPS and
                         among Ameren system companies.
 
88                       Approval of Ameren Services as a subsidiary service
                         company.

93, 94                   Accounts, records and annual reports by Ameren
                         Services.

To the extent that other sections of the Act or the Commission's rules
thereunder are deemed applicable to the Transaction and the other matters
described herein, such sections and rules should be considered to be set forth
in this Item 3.

A.   Analysis of Transaction

     Section 9(a)(2) makes it unlawful, without approval of the Commission under
Section 10, "for any person . . . to acquire, directly or indirectly, any
security of any public utility company, if such person is an affiliate . . . of
such company and of any other public utility or holding company, or will by
virtue of such acquisition become such an affiliate." Under the definition set
forth in Section 2(a)(11)(A), an "affiliate" of a specified company means "any
person that directly or indirectly owns, controls, or holds with power to vote,
5 per centum or more of the outstanding voting securities of such specified
company", and "any company 5 per centum or more of whose outstanding voting
securities are owned, controlled, or held with power to vote, directly or
indirectly, by such specified company."

     UE, CIPS and EEI are public utility companies as defined in Section 2(a)(5)
of the Act.  Because Ameren will acquire, directly or indirectly, more than five
percent of the voting securities of each of CIPS, UE and EEI as a result of the
Transaction, and because UE, CIPS and EEI will become "affiliates" of Ameren as
a result of the Transaction, Ameren must obtain the approval of the Commission
for the Transaction under Sections 9(a)(2) and 10 of the Act.  The statutory
standards to be considered by the Commission in evaluating the proposed
Transaction are set forth in Sections 10(b), 10(c) and 10(f) of the Act.

     As set forth more fully below, the Transaction complies with all of the
applicable provisions of Section 10 of the Act and should be approved by the
Commission:

                                      33

<PAGE>
 
     -    the consideration to be paid in the Transaction is fair and
          reasonable;
     -    the Transaction will not create detrimental interlocking relations or
          concentration of control;
     -    the Transaction will not result in an unduly complicated capital
          structure for the Ameren system;
     -    the Transaction will not be detrimental to the public interest or the
          interest of investors or consumers or the proper functioning of the
          Ameren system;
     -    the Transaction is consistent with Sections 8 and 11 of the Act;
     -    the Transaction tends toward the economical and efficient development
          of an integrated public utility system; and
     -    the Transaction will comply with all applicable state laws.

     Furthermore, the Transaction also provides an opportunity for the
Commission to follow certain of the interpretive recommendations made by the
Division of Investment Management (the "Division") in the report approved by the
Commission for issuance by the Division on June 20, 1995 entitled "The
Regulation of Public Utility Holding Companies" (the "1995 Report"). While the
Transaction and the requests contained in this Application/Declaration are well
within the precedent of transactions approved by the Commission as consistent
with the Act prior to the 1995 Report and thus could be approved without any
reference to the 1995 Report, a number of the recommendations contained therein
serve to strengthen the analysis presented herein and would facilitate the
creation of a new holding company better able to compete in the rapidly evolving
utility industry. The Division's overall recommendation that the Commission "act
administratively to modernize and simplify holding company regulation . . . and
minimize regulatory overlap, while protecting the interests of consumers and
investors,"/5/ should be used in reviewing this Application/Declaration since,
as demonstrated herein, the Transaction would benefit both consumers and
shareholders of Ameren and since the other federal and state regulatory
authorities with jurisdiction over this Transaction will have approved it as in
the public interest. In addition, although discussed in more detail in each
applicable item below, the specific recommendations of the Division with regard
to financing transactions,/6/ utility ownership/7/ and diversification/8/ are
applicable to this Transaction.

- ----------------
/5/  Letter of the Division of Investment Management to the Securities and
     Exchange Commission, 1995 Report at xii-xiii.

/6/  E.g., the reduced regulatory burdens associated with routine financings.
     1995 Report at 50.

/7/  E.g., the Commission should apply a more flexible interpretation of the
     integration requirements under the Act; the Commission's analysis should
     focus on whether the resulting system will be subject to effective
     regulation; the Commission should liberalize its interpretation of the
     "A-B-C" clauses and permit combination systems where the affected states
     agree, and the Commission should "watchfully defer" to the work of other
     regulators. 1995 Report at 71-77.

                                      34

<PAGE>
 
     1.   Section 10(b)

     Section 10(b) provides that, if the requirements of Section 10(f) are
satisfied, the Commission shall approve an acquisition under Section 9(a)
unless:

     (1) such acquisition will tend towards interlocking relations or the
     concentration of control of public utility companies, of a kind or to an
     extent detrimental to the public interest or the interest of investors or
     consumers;

     (2) in case of the acquisition of securities or utility assets, the
     consideration, including all fees, commissions, and other remuneration, to
     whomsoever paid, to be given, directly or indirectly, in connection with
     such acquisition is not reasonable or does not bear a fair relation to the
     sums invested in or the earning capacity of the utility assets to be
     acquired or the utility assets underlying the securities to be acquired; or

     (3) such acquisition will unduly complicate the capital structure of the
     holding company system of the applicant or will be detrimental to the
     public interest or the interest of investors or consumers or the proper
     functioning of such holding company system.

          a.   Section 10(b)(1)

               i.   Interlocking Relationships

     By its nature, any merger results in new links between theretofore
unrelated companies.  However, these links are not the types of interlocking
relationships targeted by Section 10(b)(1), which was primarily aimed at
preventing business combinations unrelated to operating synergies.  See Section
1(a)(4) and (5) of the Act.

     The Merger Agreement provides for the Board of Directors of Ameren to be
composed of members drawn from the Boards of Directors of both UE and CIPSCO.
Ten of the Ameren directors will be designated by UE and five by CIPSCO./9/  Two
representatives each of UE and CIPS will continue to serve as members of the EEI
Board of Directors.  In addition, UE, CIPS and CIPSCO Investment will be
parties, along with

- ----------------
/8/(...continued)
/8/  E.g., the Commission should promulgate rules to reduce the regulatory
     burdens associated with energy-related diversification, and the Commission
     should adopt a more flexible approach in considering all other requests to
     enter into diversified activities. 1995 Report at 88-90.

/9/  Ameren acknowledges the requirements of Section 17(c) of the Act and Rule
     70 thereunder with respect to limitations upon directors and officers of
     registered holding companies and subsidiary companies thereof having
     affiliations with commercial banking institutions and investment bankers,
     and undertakes that, upon completion of the Mergers, it will be in
     compliance with the applicable provisions thereof.

                                      35

<PAGE>
 
Ameren, to the General Services Agreement with Ameren Services. These actions
are necessary to initially create, and to integrate UE and CIPSCO fully into,
the Ameren system and will therefore be in the public interest and the interest
of investors and consumers. Forging such relations is beneficial to the
protected interests under the Act, and thus is not prohibited by Section
10(b)(1). The benefits of the Transaction described herein that will accrue to
investors, customers and the public make clear that the interlocking
relationships will not be detrimental. In CINergy Corp., 57 SEC Docket 2353
(Oct. 21, 1994), which involved a formation of a new, registered holding company
system in a manner substantially similar to the present Transaction, the
Commission made no findings of adverse interlocking relations or concentration
of control under Section 10(b)(1). Likewise, the facts of this case require no
adverse finding.

               ii.  Concentration of Control

     Section 10(b)(1) is intended to prevent utility acquisitions that would
result in "huge, complex and irrational holding company systems at which the Act
was primarily aimed."  AMERICAN ELEC. POWER CO., 46 SEC 1299, 1307 (July 21,
1978).  In applying Section 10(b)(1) to utility acquisitions, the Commission
must determine whether the acquisition will create "the type of structures and
combinations at which the Act was specifically directed."  VERMONT YANKEE
NUCLEAR CORP., 43 SEC 693, 700 (Feb. 6, 1968).

     The integration of UE and CIPS under Ameren will not create a "huge,
complex and irrational system," but rather will afford the opportunity to
achieve economies of scale and efficiencies which are expected to benefit
investors and consumers.

     Size:  If approved, the Ameren system will serve approximately 1.4 million
electric customers and 285,403 gas customers in portions of Missouri and
Illinois.  As of June 30, 1996:  (1) the combined assets of UE and CIPSCO
totaled approximately $8.6 billion; (2) 12-month combined operating revenues
totaled approximately $3.0 billion; and (3) combined, owned generating capacity
totaled 10,761 MW.

     By comparison, the Commission has approved a number of acquisitions
involving operating utilities with combined assets exceeding or approximating
those of Ameren.  SEE, E.G., CINERGY CORP., 57 SEC Docket 2353 (Oct. 21, 1994)
(combination of Cincinnati Gas & Electric and PSI Resources; combined assets at
time of acquisition of approximately $7.9 billion); ENTERGY CORP., 55 SEC Docket
2035 (Dec. 17, 1993) (acquisition of Gulf States Utilities; combined assets at
time of acquisition in excess of $21 billion); NORTHEAST UTILITIES, 47 SEC
Docket 1270 (Dec. 21, 1990) (acquisition of Public Service of New Hampshire;
combined assets at time of acquisition of approximately $9 billion); CENTERIOR
ENERGY CORP., 35 SEC Docket 769 (Apr. 29, 1986) (combination of Cleveland
Electric Illuminating and Toledo Edison; combined assets at time of acquisition
of approximately $9.1 billion); AMERICAN ELEC. POWER CO., 46 SEC 1299 (July 21,
1978) (acquisition of Columbus and Southern Ohio Electric; combined assets at
time of acquisition of close to $9 billion)./10/

- ----------------------
/10/ These numbers are unadjusted for inflation.  The AEP-Columbus number in
                                                                  (continued...)

                                      36

<PAGE>
 
     As the following table demonstrates, six of the current registered electric
utility holding company systems--Southern, Entergy, CSW, Northeast, GPU and 
AEP--will be larger than Ameren in terms of assets, operating revenues,
customers and/or sales of electricity:/11/

<TABLE>
<CAPTION>
 
                 Total      Operating    Electric     Sales in
 System          Assets     Revenues     Customers      kWh
 Total        ($Millions)  ($Millions)  (Thousands)  (Millions)
<S>            <C>          <C>          <C>          <C>
 
 Southern        27,042       8,297        3,507       139,991
                                                    
 Entergy         22,613       5,798        2,360        97,452
                                                    
  AEP            15,713       5,505        2,773       114,080
                                                    
  CSW            10,909       3,623        1,661        57,334
                                                    
Northeast        10,585       3,643        1,680        40,159
                                                    
  GPU             9,870       3,800        1,976        45,753
                                                    
  UE              6,865       2,111        1,132        34,670
                                                    
 CIPSCO           1,832         880          319        13,988
                                                    
- ----------       ------       -----        -----        ------
 Ameren           8,697       2,991        1,451        48,658
</TABLE>

     In the region where UE and CIPS are located, other existing or proposed
electric utility holding companies are larger than, or approximately the same
size as, the proposed Ameren system. Unicom Corp., the holding company of
Commonwealth Edison Co. and Unicom Enterprises, Inc., with assets of $23.247
billion, operating revenues of $6.910 billion, 3.4 million customers and 91.353
billion kWh sales, is substantially larger than the proposed Ameren combination.
CINergy, the combination of Cincinnati Gas & Electric and PSI Resources, is
comparable in size to Ameren; CINergy has total assets of $7.808 billion,
operating revenues of $2.84 billion, 1,321,000 customers, and kWh sales of
49.056 billion. Primergy, the proposed combination of Wisconsin Energy Corp. and
Northern States Power Co., will be larger than Ameren, since the proposed
Primergy would have assets of $10.649 billion, operating revenues of $4.339
billion, 2.352 million customers, and 68.284 billion in kWh sales. Ameren will
be somewhat larger than Interstate Energy Corp., the new company proposed to
result from the merger of Wisconsin Power & Light Co., IES Industries Inc. and
Interstate Power Co. The new Interstate is to have assets of $4 billion,
1,224,000 customers and revenues of $1.91 billion. In addition, the proposed
acquisition of Public

- ----------------
/10/(...continued)
     particular would be considerably higher in current dollars.

/11/ Amounts for companies other than Ameren, UE and CIPSCO are as of December
     31, 1995, or for the year ended December 31, 1995. Amounts for UE and
     CIPSCO are at and for the 12 months ended June 30, 1996.

                                      37
<PAGE>
 
Service Company of Colorado and Southwestern Public Service Company by New
Century Energies, Inc., would result in a system with assets of $6 billion,
operating revenues of about $2.8 billion and 1.5 million electric customers.

     Ameren will be a mid-size registered holding company, and its operations
would not exceed the economies of scale of current electric generation and
transmission technology or provide undue power or control to Ameren in the
region in which it will provide service.

     Efficiencies and economies: The Commission in recent years has rejected a
mechanical size analysis under Section 10(b)(1) in favor of assessing the
efficiencies and economies that can be achieved through the integration and
coordination of utility operations. As the Commission stated in American
Electric Power Co., although the framers of the Act were concerned about "the
evils of bigness,"

          they were also aware that the combination of isolated 
          local utilities into an integrated system afforded 
          opportunities for economies of scale, the elimination of 
          duplicate facilities and activities, the sharing of 
          production capacity and reserves and generally more
          efficient operations . . . [and] [t]hey wished to preserve 
          these opportunities. . . .

46 SEC at 1309.

     More recent pronouncements of the Commission confirm that size is not
determinative. Thus, in CENTERIOR ENERGY CORP., 35 SEC Docket 769, 771 (Apr. 29,
1986), the Commission stated flatly that a "determination of whether to prohibit
enlargement of a system by acquisition is to be made on the basis of all the
circumstances, not on the basis of size alone." SEE ALSO ENTERGY CORP., 55 SEC
Docket 2035 (Dec. 17, 1993). In addition, in the 1995 Report, the Division
recommended that the Commission approach its analysis on merger and acquisition
transactions in a flexible manner with emphasis on whether the transaction
creates an entity subject to effective regulation and is beneficial for
shareholders and customers as opposed to focusing on rigid, mechanical
tests./12/

     By virtue of the Transaction, Ameren will be in a position to realize the
"opportunities for economies of scale, the elimination of duplicate facilities
and activities, the sharing of production capacity and reserves and generally
more efficient operations" described by the Commission in AMERICAN ELECTRIC
POWER CO. Among other things, the Transaction is expected to yield cost
efficiencies to help maintain competitive rates, integrated corporate and
administrative functions, reduced operating costs, purchasing economies,
increased marketing opportunities, and expanded management resources. These
expected economies and efficiencies from the combined utility operations are
described in greater detail below and are projected to result in savings of
approximately $686 million over the first ten years alone.

- ----------------
/12/ 1995 Report at 73-74.

                                      38
<PAGE>
 
     Competitive Effects: Section 10(b)(1) also requires the Commission to
consider possible anticompetitive effects of a proposed combination. See Entergy
Corp., 55 SEC Docket at 2041 (citing MUNICIPAL ELEC. ASS'N OF MASSACHUSETTS V.
SEC, 413 F.2d 1052, 1056-1058 (D.C. Cir. 1969)). As the Commission noted in
Northeast Utilities, 47 SEC Docket at 1282, the "antitrust ramifications of an
acquisition must be considered in light of the fact that the public utilities
are regulated monopolies and that federal and state administrative agencies
regulate the rates charged to customers." Late in 1996 or early in 1997, CIPSCO
and UE will file Notification and Report Forms with the Department of Justice
and the Federal Trade Commission pursuant to the HSR Act describing the effects
of the Transaction on competition in the relevant market.

     In addition, the competitive impact of the Transaction is to be fully
considered by the FERC. UE and CIPS filed their joint application for FERC
approval of the Transaction on December 22, 1995. A detailed explanation of the
reasons why the Transaction will not create or increase market power in any
relevant market is set forth in the prepared testimony of Rodney W. Frame (the
"Testimony"), filed with the FERC on behalf of UE and CIPS, a copy of which is
filed as Exhibit D-1.2. The application filed by UE and CIPS with the FERC is
filed at Exhibit D-1.1. The Commission may appropriately rely upon the FERC with
respect to such matters. ENTERGY CORP., 55 SEC Docket at 2042 (citing CITY OF
HOLYOKE GAS & ELEC. DEP'T V. SEC, 972 F.2d 358, 363-64 (D.C. Cir. 1992) (quoting
WISCONSIN'S ENVIRONMENTAL DECADE, INC. V. SEC, 882 F.2d 523, 527 (D.C. Cir.
1989)). This is consistent with the 1995 Report's recommendation that the
Commission "watchfully defer" to the work of other regulators. 1995 Report at
77.

     As detailed in the Testimony, the Transaction will not create or increase
market power in any relevant market, nor facilitate its exercise through
collusion. Concurrently with their application before the FERC, UE and CIPS
filed consolidated (one-system) open access transmission tariffs. Because these
tariffs would make available all of the direct interconnections of both UE and
CIPS as receipt and delivery points, they have the potential to expand wholesale
bulk power trading opportunities in the region. While the wholesale bulk power
markets within which UE and CIPS operate already are competitive and this will
not be changed as a result of the Mergers, the filing by the two firms of these
single-system tariffs should eliminate any residual concern that market power
problems might arise as a result of the Mergers. No additional measures are
required to mitigate perceived concerns about market power resulting from the
Mergers or from the combination of the transmission systems owned by UE and
CIPS. In support of this conclusion, the Testimony explains that the Transaction
will not create or increase market power in specific relevant wholesale bulk
power markets, i.e., short term capacity, long term capacity and nonfirm energy.
Both UE and CIPS actively seek to market short term capacity, and so the Mergers
necessarily will reduce by one the number of independent sellers. However, many
other independent participants will remain. Moreover, UE has little or no
uncommitted capacity; thus, its ability to participate as a seller in short term
capacity markets essentially is limited to situations in which it resells the
capacity which it simultaneously buys from others, that is, where it acts as a
marketer. Because entry is relatively easy for those seeking only to remarket
capacity purchased from others, the elimination of one such marketer does not
present competitive concerns. As concerns short term capacity, the merged firm's
share of uncommitted capacity in all first tier markets is less than the 20
percent level, which FERC

                                      39
<PAGE>
 
in the past has used as a threshold to demarcate situations where market power
problems might be present. As concerns the possible exercise of buyer market
power in short term capacity markets, a stand-alone CIPS contemplates no new
resource additions through at least 2016. This makes it very unlikely that a
stand-alone CIPS would be seeking to purchase capacity during this time period
other than for remarketing purposes. If a stand-alone CIPS is not likely to be a
purchaser of short term capacity, the Mergers cannot reasonably be said to
increase buyer market power in short term capacity markets.

     With respect to long term generating capacity, it is unlikely as a general
matter that any one firm will possess market power. This is evidenced by the
amount of nonutility generation that has come on line in recent years. Moreover,
UE and CIPS' filing of consolidated or one-system open access transmission
tariffs should make entry by new nonutility generators easier than it would have
been without the Transaction.

     For these reasons, the Transaction will not "tend toward interlocking
relations or the concentration of control" of public utility companies, of a
kind or to the extent detrimental to the public interest or the interest of
investors or customers within the meaning of Section 10(b)(1).

          b.   Section 10(b)(2)--Fairness of Consideration

     Section 10(b)(2) requires the Commission to determine whether the
consideration to be given by Ameren to the holders of UE Common Stock and CIPSCO
Common Stock in connection with the Transaction is reasonable and whether it
bears a fair relation to the sums invested in and the earning capacity of the
utility assets underlying the securities being acquired./13/ For the reasons set
forth below, the requirements of Section 10(b)(2) are satisfied here.

               i.   Reasonableness of Consideration

     Ameren believes the consideration involved in the Transaction is reasonable
for the following reasons:

     First, the Transaction is a pure stock-for-stock exchange and qualifies for
treatment as a pooling of interests. As set forth more fully above, each share
of UE Common Stock will be converted into the right to receive one share of
Ameren Common Stock, and each share of CIPSCO Common Stock will be converted
into the right to receive 1.03 shares of Ameren Common Stock (collectively, the
"Exchange Ratios"). As a result of this accounting, the Transaction will not
produce any "fictitious or unsound asset values." See Section 1(a)(1) of the
Act.

- ----------------
/13/ In connection with the Transaction, the holders of UE preferred stock and
     CIPS preferred stock will not be affected.

                                       40
<PAGE>

     Second, the Transaction has been approved by the affected shareholders of
CIPSCO and UE. Approximately 97 percent of the CIPSCO shares voting on the
question approved the Transaction; this figure represents 76 percent of the
outstanding common shares. UE shareholders approved the Transaction with 96
percent of shares voting on the question in favor, or 71 percent of the
outstanding common and preferred shares.

     Third, the Exchange Ratios are the product of extensive and vigorous arm's-
length negotiations between CIPSCO and UE. These negotiations were preceded by
weeks of due diligence, analysis and evaluation of the assets, liabilities and
business prospects of each of the respective companies, and extensive arm's-
length bargaining. See Ameren Registration Statement on Form S-4 (Exhibit C-1
hereto). As recognized by the COMMISSION IN OHIO POWER CO., 44 SEC 340, 346
                                            -------------
(June 8, 1970), prices arrived at through arm's-length negotiations are
particularly persuasive evidence that Section 10(b)(2) is satisfied.

     Finally, nationally-recognized investment bankers for each of CIPSCO and UE
have reviewed extensive information concerning the companies and analyzed the
Exchange Ratios employing a variety of valuation methodologies, and have opined
that the Exchange Ratios are fair to the respective holders of CIPSCO Common
Stock and UE Common Stock. The investment bankers' analyses and opinions are
described in detail in Ameren's Registration Statement on Form S-4 (Exhibit C-1
hereto). The assistance of independent consultants in setting consideration has
been recognized as evidence that the requirements of Section 10(b)(2) are met.
THE SOUTHERN CO., 40 SEC Docket 350 (Feb. 12, 1988).

     In light of these opinions and an analysis of all relevant factors,
including the benefits that may be realized as a result of the Transaction, the
consideration for the Transaction (that is, the respective Exchange Ratios)
bears a fair relation to the sums invested in, and the earning capacity of the
utility assets of, UE and CIPSCO.

               ii.  Reasonableness of Fees

     Ameren believes that the overall fees, commissions and expenses incurred
and to be incurred in connection with the Transaction are reasonable and fair in
light of the size and complexity of the Transaction relative to other similar
transactions and in light of the anticipated benefits of the Transaction to the
public, investors and consumers; that they are consistent with recent precedent;
and that they meet the standards of Section 10(b)(2).

     As set forth in Item 2 of this Application, UE and CIPSCO together expect
to incur a combined total of approximately $22 million in fees, commissions and
expenses in connection with the Transaction. By contrast, the parties to the
CINergy Corp. merger incurred fees and expenses of $47 million, Northeast
Utilities alone incurred $46.5 million in fees and expenses in connection with
its acquisition of Public Service of New Hampshire, and Entergy alone incurred
$38 million in fees in connection with its acquisition of Gulf States 
Utilities--each of which amounts were approved as reasonable by the Commission.
SEE CINERGY CORP., 57 SEC Docket 2353 (Oct. 21, 1994); NORTHEAST UTILITIES, 51
SEC Docket 934 (June 3, 1992); ENTERGY CORP., 55 SEC Docket 2035 (Dec. 17,
1993). The parties to the proposed Primergy transaction expect to incur about
$30 million in fees.

                                      41
<PAGE>
 
     With respect to financial advisory fees (which are included in the $22
million total), UE and CIPSCO believe that the fees paid to their investment
bankers are fair and reasonable for similar reasons. As noted above, UE and
CIPSCO engaged separate investment banking firms to provide financial advisory
services and to render fairness opinions regarding the consideration to be
received in the Transaction. Pursuant to an engagement letter dated June 23,
1995, UE agreed to pay Goldman Sachs $5.7 million plus expenses for serving as
financial advisor and agreed to indemnify Goldman Sachs and certain related
persons against certain liabilities in connection with its engagement.

     Pursuant to the terms of an engagement letter dated June 30, 1995, CIPSCO
agreed to pay Morgan Stanley $5.4 million for acting as financial advisor in
connection with the Transaction. CIPSCO has also agreed to reimburse Morgan
Stanley for its reasonable out-of-pocket expenses (including, without
limitation, professional fees and disbursements) and to indemnify Morgan Stanley
and certain related persons against certain liabilities arising out of or in
connection with its engagement.

     Further information concerning the agreements with investment bankers and
their fees can be found in the Ameren Registration Statement on Form S-4
(Exhibit C-1 hereto).

     In the instant case, the aggregate fees to be paid to both companies'
investment bankers in connection with the Transaction--approximately $11.1
million--constitute approximately 0.24% of the companies' combined market
value./14/ These fees are generally in accord with the fees approved by the
Commission in recent cases. In one recent case, the Commission approved
investment banking fees equal to 0.96% of the aggregate value of the
acquisition, THE SOUTHERN CO., 40 SEC Docket 350, 354 (Feb. 12, 1988), or four
times the investment banking fee here on a percentage basis. In CENTERIOR ENERGY
CORP., 35 SEC Docket 769 (Apr. 29, 1986), relating to the affiliation of two
utility companies under a new common holding company, the Commission approved
combined investment banking fees amounting to 0.275% of the combined market
value of the two companies' common stock. In its order approving the acquisition
by Northeast Utilities of Public Service of New Hampshire, the Commission
approved approximately $10.6 million in financial advisory fees for Northeast
alone. NORTHEAST UTILITIES, 51 SEC Docket 934 (June 3, 1992). In CINERGY, the
Commission approved combined investment banking fees of $13.1 million, which
constituted approximately 0.31% of the companies' combined market value. CINergy
Corp., 57 SEC Docket 2353 (Oct. 21, 1994). And in the Entergy-Gulf States
decision, the Commission approved financial advisory fees of $8.3 million by
Entergy to its investment banker. ENTERGY CORP., 55 SEC Docket 2035 (Dec. 17,
1993). The financial advisory fees to be paid by UE and CIPSCO in connection
with the Transaction are significantly smaller on a percentage basis than those
approved in SOUTHERN AND CINERGY, proportionately smaller in dollar amount than
those approved in NORTHEAST UTILITIES, and comparable in dollar amount to those
approved in CINERGY. Moreover, the investment banking fees approved

- -------------
/14/ Based on the number of shares of UE Common Stock and CIPSCO Common Stock
     outstanding as of August 11, 1995 and their closing prices on that date of
     $35 3/8 and $29 5/8 per share, respectively.

                                      42

<PAGE>
 
in Northeast Utilities and Entergy represented the fees of only one party to the
transactions in question, whereas the investment banking fees here include those
of both parties.

     Finally, the investment banking fees of UE and CIPSCO reflect extensive
arms'-length bargaining between the parties.

          c.   Section 10(b)(3)--Capital Structure; Not Detrimental to Public
               Interest

     Section 10(b)(3) requires the Commission to determine whether the
Transaction will unduly complicate Ameren's capital structure or will be
detrimental to the public interest, the interest of investors or consumers or
the proper functioning of Ameren's system. The corporate capital structure of
Ameren after the Transaction will not be unduly complicated and will be
substantially similar to capital structures approved by the Commission in other
orders involving similar transactions. SEE, E.G., CINERGY CORP., 57 SEC Docket
2353 (Oct. 21, 1994); CENTERIOR ENERGY CORP., 35 SEC Docket 769, 771-772 (Apr.
29, 1986); MIDWEST RESOURCES, 47 SEC Docket 252 (Sept. 26, 1990). Ameren's
capital structure will also be similar to the capital structures of existing
registered holding company systems.

     In the Transaction, the common shareholders of CIPSCO and UE will receive
Ameren Common Stock. Ameren will own 100% of the common stock of UE and CIPS and
there will be no minority common stock interest remaining in either company.
Each outstanding share of UE and CIPS preferred stock will remain outstanding
without change. The existing debt securities of CIPS and UE will likewise remain
outstanding without change. The only voting securities which will be publicly
held after the transaction will be Ameren Common Stock, CIPS preferred stock and
UE preferred stock.

     Each share of UE preferred stock is entitled to one vote per share on all
matters presented to stockholders. Likewise, each share of CIPS preferred stock
is entitled to one vote per share on all matters presented to shareholders. If
the Transaction had been consummated June 30, 1996, the outstanding UE preferred
stock would have represented 3.25% of the total voting power of UE preferred and
common stock, 4.90% of the total capital of UE (including long-term and short-
term debt) and 8.74% of the book equity which comprises common and preferred
stock and retained earnings. At that date, the outstanding CIPS preferred stock
represented 2.29% of the total voting power of CIPS preferred and CIPSCO common
stock, 6.41% of the total capital of CIPSCO (including long-term and short-term
debt) and 10.96% of the book equity comprising CIPSCO common and CIPS preferred
stock and retained earnings. For the twelve months ended June 30, 1996, UE's
combined fixed charges and preferred dividend requirements were covered 4.08
times before provision for taxes and such figure was 4.16 times for CIPSCO. In
addition, due to the obligations imposed by the states in which UE and CIPS
operate and the substantial financial commitment of Ameren in UE and CIPS, there
is virtually no likelihood that either UE's or CIPS' assets or businesses will
be permitted to deteriorate to an extent that would jeopardize the interests of
the preferred stock. The Commission has found previously that the existence of
preferred stock under facts similar to those herein does not violate the
standards of Section 10(b)(3), 10(c)(1) or 11(b)(2) of the Act. ILLINOIS POWER
CO., 44 SEC 140 (Jan. 2, 1970). SEE ALSO CIPSCO INC., 47 SEC Docket 174 (Sept.
18, 1990), NIAGARA

                                      43

<PAGE>
 
MOHAWK POWER CORP., SEC No-Action Letter (January 24, 1991) and TEXAS UTILITIES
CO., 31 SEC 367 (Apr. 5, 1950).

     Ameren will have the ability to issue, subject to the approval of the
Commission, preferred stock, the terms of which, including any voting rights,
may be set by Ameren's Board of Directors as has been authorized by the
Commission with regard to other registered holding companies. SEE, E.G., THE
COLUMBIA GAS SYS., INC., 60 SEC Docket 244 (August 25, 1995) (approving restated
charter, including preferred stock whose terms, including voting rights, can be
established by the board of directors). The only class of voting securities of
Ameren's, CIPSCO Investment's or UE's direct nonutility subsidiaries will be
common stock and, in each case, all issued and outstanding shares of such common
stock will be held by Ameren, CIPSCO Investment or UE, as the case may be.

     Set forth below are summaries of the historical capital structures of UE
and CIPSCO as of June 30, 1996 and the pro forma consolidated capital structure
of Ameren (assuming the Transactions had occurred at June 30, 1996):

                                      44

<PAGE>
 
                  UE and CIPSCO Historical Capital Structures
                            (dollars in thousands)
                                  (unaudited)

<TABLE>
<CAPTION>
                                            CIPSCO
                                        (consolidated)
<S>                                   <C>          <C>
 
Common stock equity                   $  649,947   52.09%
 
Preferred stock of subsidiary             80,000    6.42%
 
Long-term debt of subsidiary             464,077   37.20%
 
Short-term debt (including current
 maturity of long-term debt) of   
 subsidiary                               53,482    4.29%
                                      ----------  ------
          Total                       $1,247,506  100.00%
 
 
 
                                                UE
 
Common Stock Equity                   $2,289,004   51.09%
 
Preferred stock                          219,121    4.90%
 
Long-term debt                         1,825,208   40.74%
 
Short-term debt (including current
 maturity of long-term debt)             146,599    3.27%
                                      ----------  ------
          Total                       $4,479,932  100.00%
 
 
 
                Ameren Pro Forma Consolidated Capital Structure
                            (dollars in thousands)
                                  (unaudited)
 
Common stock equity                   $2,938,951   50.17%
 
Preferred stock of subsidiaries          299,121    5.11%
 
Long-term debt of subsidiaries         2,419,285   41.30%
 
Short-term debt (including current
 maturity of long term debt) of
 subsidiaries                            200,081    3.42%
                                      ----------  ------
          Total                       $5,857,438  100.00%
</TABLE>

Ameren's pro forma consolidated common equity to total capitalization ratio of
50.17% is significantly higher than Northeast Utilities' approved 27.6% common
equity position and

                                      45

<PAGE>
 
CINergy's level of 39.9% and comfortably exceeds the "traditionally acceptable
30% level". NORTHEAST UTILITIES, 47 SEC Docket at 1270, 1279, 1284 (Dec. 21,
1990). CINERGY CORP., 57 SEC Docket 2353 (Oct. 21, 1994).

     2.   Section 10(c)

     Section 10(c) of the Act provides that, notwithstanding the provisions of
Section 10(b), the Commission shall not approve:

     (1) an acquisition of securities or utility assets, or of any other
     interest, which is unlawful under the provisions of Section 8 or is
     detrimental to the carrying out of the provisions of Section 11/15/; or

     (2) the acquisition of securities or utility assets of a public utility or
     holding company unless the Commission finds that such acquisition will
     serve the public interest by tending towards the economical and the
     efficient development of an integrated public utility system . . . .

          a.  Section 10(c)(1)

     Section 10(c)(1) requires that the proposed acquisition be lawful under
Section 8. Section 8 prohibits registered holding companies from acquiring,
owning interests in or operating both a gas and an electric utility serving
substantially the same area if state law prohibits it or requires specific
approval for such combinations. Each of UE and CIPS has provided combination gas
and electric utility services in Missouri and Illinois for many years. Because
Missouri and Illinois law do not in any way prohibit or require special approval
for combination gas and electric utilities serving the same area, the
Transaction does not raise any issue under Section 8 and, accordingly, the first
clause of Section 10(c)(1). As more

- ----------------
/15/ By their terms, Sections 8 and 11 only apply to registered holding
     companies and are therefore inapplicable at present to UE, CIPSCO or CIPS,
     since none of these companies is now a registered holding company. The
     retention by UE of the combination gas and electric business was approved
     in IN RE UNION ELEC. CO., 40 SEC 1072 (Apr. 2, 1962). While divestiture had
     been ordered in IN RE UNION ELEC. CO., 1972 SEC LEXIS 4264 (Sept. 19,
     1972), jurisdiction over such issue was reserved and UE was allowed to
     retain its gas properties in IN RE UNION ELEC. CO., 45 SEC 489 (Apr. 10,
     1974), the leading case concerning operation of combination utilities by
     exempt holding companies. The current view of the Commission as to
     retainability of combination utilities for an exempt holding company is
     reflected in CIPSCO INC., 47 SEC Docket 174 (Sept. 18, 1990). There the
     retention by CIPSCO and CIPS of the combination gas and electric business
     was unconditionally approved by the Commission. Id. (citing WISCONSIN
     ENERGY CORP., 37 SEC Docket 387 (Dec. 18, 1986); WPL HOLDINGS, INC., 40 SEC
     Docket 634 (Feb. 26, 1988)). The following discussion of Sections 8 and 11
     is included because, under the present Transaction structure, Ameren will
     register as a holding company after consummation of the Transaction.

                                      46
<PAGE>
 
fully discussed below, Section 8 in fact indicates that a registered holding
company may own both gas and electric utilities where there is no conflicting
state policy.

     Section 10(c)(1) also requires that the Transaction not be detrimental to
carrying out the provisions of Section 11. Three provisions of Section 11 are
relevant here.

     Section 11(a) of the Act requires the Commission to examine the corporate
structure of registered holding companies to ensure that unnecessary
complexities are eliminated and voting powers are fairly and equitably
distributed. Similarly, Section 11(b)(2) directs the Commission "to ensure that
the corporate structure or continued existence of any company in the holding
company system does not unduly or unnecessarily complicate the structure, or
unfairly or inequitably distribute voting power among security holders, of such
holding company system." As described above, the Transaction will not result in
unnecessary complexities or unfair voting powers. As noted, in this regard
Ameren will be similar to the existing registered holding companies. See Item
3.A.1(a) and (c).

     Finally, Section 11(b)(1) generally requires a registered holding company
system to limit its operations "to a single integrated public utility system,
and to such other businesses as are reasonably incidental, or economically
necessary or appropriate to the operations of such integrated public utility
system." One or more "additional" integrated public utility systems may be
retained if, as here, the "ABC Clauses" described below are satisfied. The
Transaction raises only two arguably significant issues under Section (10)(c)(1)
and by reference Section 11(b)(1): (i) whether Ameren may retain, through
control of UE and CIPS, control of integrated combination gas and electric
utility companies and (ii) whether Ameren may retain, through control of UEDC
and CIPSCO Investment, their existing nonutility investments. As detailed below,
retention by Ameren of these interests will not be detrimental to the carrying
out of any of the provisions of Section 11.

               i.   Retention of Gas Operations

     Ameren questions whether this Commission should continue to deem a
combination company, such as post-Transaction Ameren, as anything other than a
single integrated public-utility system under Section 11. A combination
integrated gas and electric system is fully contemplated by the Act, and the
risk of the potential abuses that this Commission has historically sought to
combat through its interpretation of Section 11 is no longer significant in
light of the nature and level of competition in the energy market. Restricting
registered utility systems to either gas or electric utility businesses will put
such companies at a severe competitive disadvantage in today's evolving energy
market. Accordingly, the Commission should not require combination gas and
electric systems to satisfy the "ABC" test where, as here, they have not been
prohibited by the relevant state authorities.

     This Application/Declaration will first describe how Ameren would clearly
meet the traditional ABC Clauses requirements, but will also demonstrate that
the Commission should approve the Transaction without reference to the Clauses 
- -- that is, on the basis that the acquisition by Ameren of combination companies
CIPS and UE is not detrimental to the provisions of Section 11 because they
constitute a "single integrated public utility system."

                                      47
<PAGE>
 
                    (A) Ameren Satisfies the Traditional "ABC" Test

     Section 11(b)(1) of the Act generally requires a registered holding company
system to limit its operations "to a single integrated public utility system,
and to such other businesses as are reasonably incidental, or economically
necessary or appropriate to the operations of such integrated public utility
system." Section 11(b)(1) of the Act expressly permits a registered holding
company to control one or more "additional integrated public utility systems"
if:

          A)  each of such additional systems cannot be operated as an
     independent system without the loss of substantial economies which can be
     secured by the retention of control by such holding company of such system;

          B)  all of such additional systems are located in one state, adjoining
     states, or a contiguous foreign country; and

          C)  the continued combination of such systems under the control of
     such holding company is not so large (considering the state of the art and
     the area or region affected) as to impair the advantages of localized
     management, efficient operation, or the effectiveness of regulation.

                         (1)  Clause (A)

     Since 1968, in interpreting clause (A) of Section 11(b)(1), the Commission
has looked to the Supreme Court decisions in SEC V. NEW ENGLAND ELEC. SYS., 384
U.S. 176 (1966) ("NEES I") and SEC V. NEW ENGLAND ELEC. SYS., 390 U.S. 207
(1968) ("NEES II"). In NEES I, the Supreme Court accepted the Commission's
interpretation of the "loss of substantial economies" language of clause (A) to
require an applicant seeking to own an electric and gas utility system to show
that the additional system, if separated from the principal system, would be
incapable of independent economic operation.

     Historically, in determining whether lost economies are "substantial" under
Section 11(b)(1)(A), the Commission has given consideration to four ratios,
which measure the projected loss of economies as a percentage of: (1) total gas
operating revenues; (2) total gas expense or "operating revenue deductions"; (3)
gross gas income; and (4) net gas income or net gas utility operating income.
Although the Commission has declined to draw a bright-line numerical test under
Section 11(b)(1)(A), it has indicated that cost increases resulting in a 6.78%
loss of operating revenues, a 9.72% increase in operating revenue deductions, a
25.44% loss of gross income and a 42.46% loss of net income would afford an
"impressive basis for finding a loss of substantial economies." IN RE ENGINEERS
PUBLIC SERVICE CO., 12 SEC 41, 59 (Sept. 16, 1942) ("ENGINEERS").

     Here, the lost economies would be far greater than in ENGINEERS if the gas
properties of UE and CIPS were to be operated on a stand-alone basis, with no
offsetting increase in benefits to consumers. These lost economies result from
the need to replicate services, the sacrifice of economies of scale, the costs
of reorganization, and other factors, and are

                                      48
<PAGE>
 
described more fully in the Analysis of the Economic Impact of a Divestiture of
the Gas Operations of UE and CIPS (the "Gas Study") (Exhibit K-1 hereto).

     As set forth in the Gas Study, divestiture of the gas operations of UE  and
CIPS into stand-alone companies would result in lost economies of $22.1 million
for UE and $36.3 million for CIPS.  These lost economies compare with 1995 gas
operating revenues of $87.8 million for UE and $129.6 million for CIPS; gas
operating revenue deductions of $80.5 million for UE and $117.4 million for
CIPS; gas gross income of $7.3 million for UE and $12.2 million for CIPS; and
gas net income of $5.2 million for UE and $8.6 million for CIPS.

     On a percentage basis, the lost economies amount to 425% of 1995 UE gas net
income and 424% of 1995 CIPS gas net income (424% of pro forma combined gas net
income) -- far in excess of the loss of net income in Unitil Corp., 51 SEC
Docket 562 (Apr. 24, 1992) (Unitil), where the Commission allowed the retention
of gas utility operations, and the 30% loss in New England Electric System that
the Commission has described as the highest loss of net income in any past
divestiture order./16/  As a percentage of 1995 gas operating revenues, these
lost economies described in the Gas Study amount to 25% for UE and 28% for CIPS
- -- losses substantially higher than the losses in any past divestiture order.
The projected loss of economies as a percentage of operating revenues is even
higher than the loss in Unitil./17/  As a percentage of 1995 gas expenses or
operating

- ----------------
/16/ See Unitil Corp., 51 SEC Docket 562, 567 & n.42 (Apr. 24, 1992) ("The
     Commission has required divestment where the anticipated loss in income of
     the stand-alone company was approximately 30%" or "29.9% of net income
     before taxes") (citing SEC V. NEW ENGLAND ELEC. SYS., 390 U.S. 207, 214
     n.11 (1968)).

/17/ The loss as a percentage of operating revenues in Unitil was 13.94%. The
     highest loss of operating revenues in any case ordering divestiture is
     commonly said to be 6.58%. SEE, E.G., UNITIL CORP., 51 SEC Docket 562, 567
     n.41 (Apr. 24, 1992) ("[o]f cases in which the Commission has required
     divestment, the highest estimated loss of operating revenues of a stand-
     alone company was 6.58%") (citing In RE ENGINEERS PUBLIC SERVICE CO., 12
     SEC 41 (Sept. 16, 1942)). In fact, however, the 6.58% ratio is not cited in
     ENGINEERS and is a post hoc calculation derived from claimed cost increases
     which the Commission had found were "overstated" and "doubtful" in a number
     of respects. ENGINEERS PUBLIC SERVICE CO., 12 SEC at 80-81. SEE ALSO IN RE
     PHILADELPHIA CO., 28 SEC 35, 51 n.26 (June 1, 1948) (Engineers' "estimate
     . . . of increased expenses . . . was overstated in several respects").
     While the SEC made no finding as to actual cost increases or ratios for the
     Gulf States gas properties, it found that ENGINEERS' estimate of
     divestiture-related cost increases for certain sister gas properties in
     Virginia were also overstated and cut them and the resulting ratios in
     half. ENGINEERS PUBLIC SERVICE CO., 12 SEC at 60. If the same 50% discount
     had been applied to Engineers' Gulf States gas properties, the loss of
     operating revenues would have been 3.29%, the increase in expenses would
     have been 4.73%, the loss of gross income would have been 10.43%, and the
     loss of net income would have been 12.63%.
                                                                  (continued...)

                                       49
<PAGE>
 
revenue deductions, the lost economies described in the Gas Study would amount
to 27% for UE and 31% for CIPS -- higher than the losses in any past divestiture
order and higher than the losses in both UNITIL and ENTERGY, another case in
which the Commission authorized the retention of gas operations./18/  As a
percentage of 1995 gas gross income, the lost economies described in the Gas
Study amount to 301% for UE and 297% for CIPS--far in excess of the highest loss
of gross income in any divestiture order.  The applicable percentages here and
in past cases are summarized in Exhibit K-2 hereto (Table of Estimated Losses of
Economies in Prior Decisions on Divestiture and Retention of Gas Operations).

     In order to recover these lost economies, the stand-alone company divested
from UE would need to increase customer rates by about 38% ($33.7 million) in
order to provide an 11.15% rate of return on rate base.  Similarly, the stand-
alone company divested from CIPS would need to increase customer rates by about
31% ($40.7 million) in order to provide a 10.98% rate of return on rate base.
These rates of return were conservatively estimated using UE's and CIPS's
approximate costs for capital rather than the higher returns that would likely
be required by the financial community for separate companies.

     Finally, it should be noted that the lost economies would, in the absence
of rate relief, result in a negative rate of return on rate base for the gas
operations (-8.73% and -15.93% for UE and CIPS respectively)--significantly more
detrimental than the 2.01% projected stand-alone rate of return in UNITIL, where
retention was authorized.  These returns are significantly lower than the
returns of other utilities in the region and represent a decline from UE's and
CIPS' indicated rates of return for 1995.

- ----------------
/17/ (...continued)
     Disregarding the 6.58% ratio incorrectly attributed to the Engineers/Gulf
     States case, the highest loss of operating revenues in any past divestiture
     order was 5.85%. SEE table of ratios in IN RE NEW ENGLAND ELEC. SYS., 41
     SEC 888, 905 App. (Mar. 19, 1964). This figure would be even lower if
     adjusted for the increase in purchased gas costs since the 1940s.

/18/ The highest percentage of loss related to operating revenue deduction is
     sometimes attributed to the Gulf States gas properties of Engineers Public
     Service Co. SEE, E.G., IN RE NEW ENGLAND ELEC. SYS., 41 SEC 888, 905 App.
     (March 19, 1964) (attributing 9.46% to the Engineers/Gulf States case).
     This percentage, however, is based on claimed losses expressly rejected by
     the Commission in the ENGINEERS decision. IN RE ENGINEERS PUBLIC SERVICE
     CO., 12 SEC 41, 80-81 (Sept. 16, 1942). Disregarding the 9.46% figure
     erroneously attributed to the ENGINEERS case, the highest expense
     percentage in the cases ordering divestiture appears to have been either
     8.01% or 7.42%, depending on how the ratio is calculated. SEE IN RE NORTH
     AMERICAN CO., 18 SEC 611 (Apr. 7, 1945); IN RE PHILADELPHIA CO., 28 SEC 35,
     51 Table VI (June 1, 1948) (attributing expense ratio of 7.42% to North
     American) with IN RE NEW ENGLAND ELECTRIC SYSTEM, 41 SEC 888, 905 App.
     (1964) (attributing expense ratio of 8.01% to North American).

                                       50
<PAGE>
 
                         (2)  Clauses (B) and (C) of Section 11(b)(1) are
                              Satisfied.

     The remaining requirements of Section 11(b)(1) are met because the gas
operations of UE and CIPS are located in the adjoining states of Missouri and
Illinois and because the continued combination of the gas operations under
Ameren is not so large, considering the state of the art and the area or region
affected, as to impair the advantages of localized management, efficient
operation or the effectiveness of regulation.  The gas systems are confined to a
relatively small area and are not as large as other gas systems in the same area
and will preserve the advantages of localized management, efficient operation
and effectiveness of regulation.  Moreover, as the Commission has recognized
elsewhere, the determinative consideration is not size alone or size in an
absolute sense, either big or small, but size in relation to its effect, if any,
on localized management, efficient operation and effective regulation.  From
these perspectives, it is clear that the continued combination of the gas
operations under Ameren is not too large.

     Even after the combination, the gas operations of UE and CIPS, with some
285,403 customers combined in only two states, will be significantly smaller
than neighboring Northern Illinois Gas Company (1,769,800 customers), People's
Gas Light and Coke Company (842,510 customers), Laclede Gas Co. (553,000
customers), Missouri Gas Energy (450,000 customers) and Illinois Power Co.
(388,170 customers).

     Localized management is discussed for the Transaction as a whole under Item
3.A.2.b.(ii)(A) and (B) below.  Applied solely to the gas operations, the
current UE and CIPS gas systems enhance localized management within the larger
corporate structure and will continue to do so after the Transaction is
completed.

     As a result of the Transaction, the centralized functions of Ameren will
continue to be handled from St. Louis, Missouri and Springfield, Illinois and
from regional offices.  No reduction in customer service or support crews is
expected. Management will therefore remain geographically close to the gas
operations, thereby preserving the advantages of a localized management.  From
the standpoint of regulatory effectiveness, the Transaction will eliminate the
dual jurisdictional regulation of the UE system.  Upon receipt of state
commission approvals, each utility, UE and CIPS, will operate only in one state,
thus making regulation more streamlined and mitigating allocation issues
regarding purchased gas costs.

     With respect to efficient operation, as described below, as part of the
Ameren system, the gas operations of UE and CIPS are expected to reduce
delivered gas costs by $37 million in the first 10 years after the Mergers.
Substantially all of these reductions will be passed on directly to customers
under the purchased gas adjustment ("PGA") clauses in UE's and CIPS' tariffs, if
all of the system's purchased gas costs continue to receive PGA treatment as at
present.  See Item 3.A.2.b.ii.(B).  Far from impairing the advantages of
efficient operation, the combination of the gas operations under Ameren will
facilitate and enhance the efficiency of gas operations.  As discussed in Item
3.A.2.a.i.(B), the "state of the art" with respect to gas operations has changed
significantly in recent years.  In the light of current communications
technology and the nature of today's gas business, the combination

                                       51
<PAGE>
 
of the UE and CIPS gas businesses, under the control of Ameren, will not
jeopardize local control and will significantly improve operating efficiency.

     Based on its traditional application of the ABC Clauses, the Commission
should find that UE and CIPS may retain the combined gas businesses as an
"additional" integrated system.

                    (B)  The Commission Should Not Require Ameren to Satisfy the
                         Traditional "ABC" Test.

     Although for many years the Commission has interpreted the Act as not
permitting a registered holding company to control subsidiaries that were
combination gas and electric utilities, except where the "ABC" test is met,
Ameren believes that the Commission should revise its interpretation of the Act,
in light of recent changes both in national energy policy and in the energy
markets./19/

                         (1)  The Act Does Not Prohibit Combination Companies.

     Nothing in the Act directly prohibits a registered holding company from
owning an integrated gas and electric system if such a structure does not
violate the laws of the state(s) having jurisdiction over such a system.
Section 8 of the Act provides that:

          [w]henever a State law prohibits, or requires approval or
          authorization of, the ownership or operation by a single company of
          the utility assets of an electric utility company and a gas utility
          company serving substantially the same territory, it shall be unlawful
          for a registered holding company, or any subsidiary company thereof
          . . . (1) to take any step, without the express approval of the state
          commission of such State, which results in its having a direct or
          indirect interest in an electric utility company and a gas company
          serving substantially the same territory; or (2) if it already has any
          such interest, to acquire, without the express approval of the state
          commission, any direct or indirect interest in an electric utility
          company or gas utility company serving substantially the same
          territory as that served by such companies in which it already has an
          interest.

Thus, on its face, the Act only precludes the use of the registered holding
company form to circumvent any state law restrictions on the ownership of gas
and electric assets by the same company.

     Further, the legislative history of the Act indicates that Congress saw the
question of whether combination companies are desirable as one that should be
left to the states.

- ----------------
/19/ These changes are described below and have been recognized by the
     Commission. SEE CONSOLIDATED NATURAL GAS, Release No. 35-26512 (Apr. 30,
     1996); NORTHEAST UTILITIES, Release No. 35-26554 (August 13, 1996).

                                       52
<PAGE>
 
The Senate Committee on Interstate Commerce in its report on the Act noted that
the provision in Section 8 concerning combination companies "is concerned with
competition in the field of distribution of gas and electric energy -- a field
which is essentially a question of State policy, but which becomes a proper
subject of Federal action where the extra-State device of a holding company is
used to circumvent State policy."  The Report of the Committee on Interstate
Commerce, S. Rep. No. 621 74th Cong., 1st Sess. 31 (1935).  In addition,
attached to the committee report is the Report of the National Power Policy
Committee on Public-Utility Holding Companies, which sets forth a recommended
policy that:  "Unless approval of a State commission can be obtained the
commission would not permit the use of the holding-company form to combine a gas
and electric utility serving the same territory where local law prohibits their
combination in a single entity."

     Congress clearly recognized that local regulators are in the best position
to assess the needs of their communities.  The Act was never intended to
supplant local regulation but, rather, was intended to create conditions under
which local regulation was possible.  Section 21 of the Act states:

          Nothing in [the Act] shall affect . . . the jurisdiction of any other
          commission, board, agency or officer of . . . any State, or political
          subdivision of any State, over any person, security, or contract,
          insofar as such jurisdiction does not conflict with any provision of
          [the Act]. . . .

The legislative history reveals that Section 21 of the Act was further intended
"to ensure the autonomy of State commissions [and] nothing in the [Act] shall
exempt any public utility company from obedience to the requirements of State
regulatory law."  S. Rep. No. 621, 74th Cong., 1st Sess. 10 (1935).

     The Act should not be used as a tool to override state policy, particularly
where the holding company involved is subject to both state and federal
regulation and where the affected state regulatory commissions have supported
the combined electric and gas operations in one holding company system.  To do
otherwise would be to act contrary to Congress' intent.


                         (2)  The Commission's Interpretation of the Act.

     In its early decisions under the Act, the Commission adhered to the concept
that Section 8 of the Act evidenced the policy of Congress that the decision of
whether to allow combination companies was one that states should make (although
the Commission might have to implement it in certain cases) and, where such
systems were permissible, the role of the Commission was to ensure that both
such systems were integrated as defined in the Act.  If the electric systems
were integrated and the electric and gas properties were in close geographic
proximity and were related so that substantial economies were obtained by their
coordination under common control, then combined ownership by the registered
holding company would be permitted.  SEE AMERICAN WATER WORKS & ELEC. CO., 2 SEC
972

                                       53
<PAGE>
 
(Dec. 30, 1937); 1995 Report at 62.  If a combination company did not violate
state policy, there was no need for the Commission to exercise jurisdiction to
implement state policy.

     By the early 1940s, however, the Commission, faced with further perceived
abuses and based on THEN EXISTING COMPETITIVE CONDITIONS, switched its focus to
Section 11 and adopted a narrow interpretation of the standards contained
therein as the controlling factor with regard to combination registered holding
companies./20/ In this period of the administration of the Act, facing vigorous
constitutional challenges to the Act's validity as well as concerted resistance
in many proceedings to the specific attempts to order divestiture by holding
companies of utility subsidiaries, the Commission pursued a policy of strict
interpretation of the Act to best effectuate the directive from Congress that
the monolithic holding companies be broken up./21/ Furthermore, in connection
with its analysis of combination companies under Section 11, the Commission
frequently noted a policy concern existing at that time which advocated
separating the management of gas and electric utilities based on the belief that
the gas utility business tended to be overlooked by combination company
management who focused on the electric business. Therefore, it was believed that
gas utilities would benefit from having separate management focused entirely on
the gas utility business./22/

                         (3)  The Commission Should Revise Its Interpretation of
                              The Act.

     The Commission is not bound by its historical emphasis on Section 11 of the
Act when assessing combination companies. An agency may revise its
interpretation of its governing statute where its revised interpretation is
reasonable and where it provides a

- ----------------
/20/ SEE, E.G., IN RE COLUMBIA GAS & ELEC. CORP., 8 SEC 443, 463 (Jan. 10,
     1941); IN RE UNITED GAS IMPROVEMENT CO., 9 SEC 52 (1941); SEC V. NEW
     ENGLAND ELEC. SYS., 384 U.S. 175 (1966). It should be noted that the
     Commission continued to give primacy to state utility commission
     determinations in making decisions regarding combination exempt holding
     companies. SEE, E.G., IN RE NORTHERN STATES POWER CO., 36 SEC 1 (Sept. 16,
     1954); DELMARVA POWER & LIGHT CO., 46 SEC 710 (Oct. 19, 1976); WPL
     HOLDINGS, Release No. 35-24590 (Feb. 26, 1988); CIPSCO INC., 47 SEC Docket
     174 (Sept. 18, 1990).

/21/ That goal has been long accomplished.  1995 Report at ix.

/22/ SEE, E.G., IN RE PHILADELPHIA CO., 28 SEC 35, 48 (June 1, 1948); IN RE
     NORTH AMERICAN CO., 11 SEC 194, 216-17 (Apr. 14, 1942); In re Illinois
     Power Co., 44 SEC 140 (Jan. 2, 1970). The principal reasons for this change
     in policy was to better administer the Act in light of perceived abuses and
     conditions in the industry at the time. As noted, industry conditions are
     significantly different now than in the 1940s. Also, the actual STATUTORY
     basis for this changed policy rested on a very technical INTERPRETATION OF
     THE DEFINITION of "integrated public utility system." As will be shown,
     this strained interpretation ignores the clear language of Section 8. SEE
     1995 Report at 63, 65. As noted below, the Commission has the authority to
     reinterpret the meaning of the Act in light of changed conditions.

                                      54
<PAGE>
 
reasoned basis for its change. CHEVRON USA, INC. V. NAT'L RESOURCES DEFENSE
COUNCIL, INC., 467 U.S. 837 (1984); RUST V. SULLIVAN, 500 U.S. 173, 186-87
(1991) (agency's reversal of policy in effect for 18 years was consistent with
intent of statute and was supported by reasoned analysis, and thus permissible).

     The Supreme Court has indicated that the governing principle is the intent
of Congress, not an agency's long-standing practice. In CHEVRON, the Court
stated:

               When a court reviews an agency's construction of the statute
          which it administers, it is confronted with two questions. First,
          always, is the question whether Congress has directly spoken to the
          precise question at issue. If the intent of Congress is clear, that is
          the end of the matter; for the court, as well as the agency, must give
          effect to the unambiguously expressed intent of Congress. If, however,
          the court determines Congress has not directly addressed the precise
          question at issue, the court does not simply impose its own
          construction on the statute, as would be necessary in the absence of
          an administrative interpretation. RATHER, IF THE STATUTE IS SILENT OR
          AMBIGUOUS WITH RESPECT TO THE SPECIFIC ISSUE, THE QUESTION FOR THE
          COURT IS WHETHER THE AGENCY'S ANSWER IS BASED ON A PERMISSIBLE
          CONSTRUCTION OF THE STATUTE.

CHEVRON, 467 U.S. at 842-43 (citations omitted; emphasis added).

     Moreover, the Court has stated:

          [An agency's] revised interpretation [of a statute] deserves deference
     because an initial agency interpretation is not instantly carved in stone
     and the agency, to engage in informed rulemaking, must consider varying
     interpretations and the wisdom of its policy on a continuing basis. An
     agency is not required to establish rules of conduct to last forever, but
     rather must be given ample latitude to adapt its rules and policies to the
     demands of changing circumstances.

RUST, 500 U.S. at 186-87 (citations and internal quotation marks omitted).

     The Commission has begun a re-evaluation of the requirements of Section 11
in light of contemporary conditions. To date, that review has principally
focused on the meaning of the ABC Clauses and whether it is necessary to
continue a narrow, restrictive interpretation of those provisions.

     In NEES I, the Supreme Court specifically recognized that the language of
clause (A) of Section 11(b)(1) was "not crystal clear" and deferred to the
Commission's "expertise on the total competitive situation." 384 U.S. at 185
(emphasis in original); SEE ALSO NEES II, 390 U.S. at 219. In NEES I and NEES
II, the Court accepted the Commission's interpretation of Clause A as a
"construction well within the permissible range given to those who are charged
with the task of giving an intricate statutory scheme practical sense and
application." 384 U.S. at 185.

                                      55
<PAGE>
 
     The NEES interpretation however, is, not the only permissible
interpretation. There is strong support for the Commission's application of a
different interpretation of Clause A, and the Commission may use its expertise
to develop a different interpretation which is both consistent with Congress'
intent and which properly addresses the "demands of changing circumstances."
RUST, 500 U.S. at 186-87. This Commission is free to apply its expertise to
administer the Act in light of changes in legal, regulatory and economic
circumstances which were not foreseen at the time of the NEES decisions,
including federal legislation (described below) which has "substantially
changed" the Act. SEE CHEVRON, 476 U.S. at 842.

     The Division recognized in the 1995 Report that the Commission should no
longer be bound by the narrow interpretation of Clause (A) under the NEES
decisions. In so doing, the Division stated:

          [T]he SEC has generally required electric registered holding companies
          that seek to own gas utility properties to satisfy the requirements of
          the A-B-C clauses concerning additional integrated systems. In
          contrast, exempt holding companies have generally been permitted to
          retain or acquire combination systems so long as combined ownership of
          gas and electric operations is permitted by state law and is supported
          by the interested regulatory authorities.

          In the past, the SEC has construed the A-B-C clauses narrowly to
          permit retention only where the additional system, if separated from
          the principal system, would be incapable of independent economic
          operations. Although the Supreme Court upheld the SEC's reading, two
          justices dissented, contending that the "serious impairment" standard
          was at odds with the wording of the Act, had little basis in the
          statutory history or aims of the Act, and could not be sustained by
          agency or judicial precedent. The dissenting justices believed that
          the statutory language "called for a business judgment of what would
          be a significant loss."

          Applicants in recent matters have argued that, in a competitive
          utility environment, any loss of economies threatens a utility's
          competitive position, and even a "small" loss of economies may render
          a utility vulnerable to significant erosion of its competitive
          position. There is general support for a more relaxed standard. A
          number of commenters emphasize that these are essentially state
          issues. It does not appear that the SEC's precedent concerning
          additional systems precludes the SEC from relaxing its interpretation
          of section 11(b)(1)(A). Indeed, the SEC has recognized that section 11
          does not impose "rigid concepts" but rather creates a "flexible"
          standard designed "to accommodate changes in the electric utility
          industry."

          Congress, in 1935, recognized that competition in the field of
          distribution of gas and electric energy is essentially a question of
          state policy. The Act was intended to ensure compliance with state law
          in

                                      56
<PAGE>
 
          this regard. Moreover, it appears that the utility industry is
          evolving toward the creation of one-source energy companies that will
          provide their customers with whatever type of energy supply they want,
          whether electricity or gas. Accordingly, the Division believes it is
          appropriate to reconcile the treatment of registered and exempt
          companies in this regard, and so recommends that the SEC permit
          registered holding companies to own gas and electric utility systems
          pursuant to the A-B-C clauses of section 11(b)(1), where the affected
          states agree./23/

The Commission approved the Report on June 20, 1995.

     Ameren believes that the Division's recommendation regarding Clause A would
represent sound policy by the Commission. Indeed, the policy so expressed would
equally support a finding that a combination company, if it meets the
requirements of the AMERICAN WATER WORKS decision, constitutes a single
integrated public utility system. From a policy perspective, the Commission's
historic concern underpinning its 1964 NEES decision and a host of earlier
decisions where the retainability of gas properties by registered electric
systems was at issue -- namely, of fostering competition between electric and
gas -- is simply no longer valid given the current "state of the art" in the
electric and gas utility industries. In the three decades since the Commission
decided the NEES cases, profound economic and regulatory factors have wrought a
fundamental transformation in the gas supply and electric generation industry,
rendering obsolete the Commission's earlier premises regarding the primacy of
competition between gas and electric service and the lack of competition within
electric and gas service.

     The Commission itself has noted that the Act "creates a system of pervasive
and continuing economic regulation that must in some measure at least be
refashioned from time to time to keep pace with changing economic and regulatory
climates." UNION ELECTRIC CO., 45 S.E.C. 489, 503 n.52 (1974), AFF'D SUB NOM.
CITY OF CAPE GIRARDEAU V. SEC, 521 F.2d 324 (D.C. Cir. 1974). SEE ALSO EASTERN
UTILITIES ASSOC., Holding Co. Act Release No. 26232 (Feb. 15, 1995). The
Commission has specifically recognized that the "changing realities of the
utility industry" include "the increasing integration of energy markets, as
deregulation and competition increase." CONSOLIDATED NATURAL GAS CO., Release
No. 35-26512 (Apr. 30, 1996) ("CONSOLIDATED").

     The Commission took further steps toward the conclusion urged here in
CONSOLIDATED. In that case, Consolidated, a registered gas utility company,
received approval to enter into the wholesale electric marketing business. The
Commission indicated it would approve retail marketing of electricity when state
laws had developed to allow such activity. Quoting an earlier release, the
Commission noted that "the utility industry is evolving toward a broadly based
energy-related business that is no longer focused solely on the traditional,
regulated, production and distribution functions of a utility." Under the
CONSOLIDATED decision, Consolidated (a gas utility) may own electric generating
facilities (e.g., through an EWG) and may sell electricity through the approved
marketing subsidiary. Several months

- ----------------
/23/ 1995 Report at 74, 75, 76.  Footnotes omitted.

                                      57
<PAGE>
 
after CONSOLIDATED, the Commission took a further step. Recognizing that "the
electric and gas industries are no longer separate, but are instead increasingly
integrated," the Commission approved the application of an electric registered
holding company system to engage in RETAIL marketing of energy commodities
(including electricity and gas). SEI HOLDINGS, Release No. 35-26581 (Sept. 26,
1996) ("SEI HOLDINGS"). Thus, registered holding companies are now able to offer
their wholesale and retail customers integrated gas and electric energy services
- -- exactly what Ameren wishes to offer its customers. CONSOLIDATED, SEI HOLDINGS
and the cases following them strongly suggest that the Commission is changing
its interpretation of the Act including those activities deemed "detrimental to
carrying out the provisions of Section 11."/24/

     UE and CIPS have conducted combined electric and gas operations for many
years. As the energy markets have developed, especially in recent years, CIPS
and UE have developed, and are further developing, as "energy service"
companies. The provision of gas and electric products is only the start of a
utility's job. In addition, the utility must provide an entire package of both
energy products and services. In this area, CIPS' and UE's efforts are part of a
trend by utilities to organize themselves as "energy service companies," that
is, as providers of a total package of energy services rather than merely
suppliers of gas and electric products. The goal of an energy service company is
to retain its current customers and obtain new customers in an increasingly
competitive environment by meeting customers' needs better than the competition.
An energy service company can provide the customer with a low cost energy option
(i.e., gas, electricity or conservation) without inefficient subsidies.

     As energy services companies, UE and CIPS are not solely electric or gas
utilities and do not operate in a manner which could lead to the abuses which,
under competitive conditions previously prevailing in the industry, were
perceived as likely to arise from the combination of gas and electric utilities
under common ownership in a single holding company system -- i.e., the "favoring
of one of these competing forms of energy over the other." NEES I at 183.
Rather, UE and CIPS offer (and the Ameren system will offer) diverse forms of
energy to their consumers, thereby allowing customers to choose among different
forms of energy and fostering efficiency and conservation. This increasing
competition to supply all forms of energy will prevent a holding company from
"favoring"

- ----------------
/24/ SEE NORTHEAST UTILITIES, Release No. 35-26554 (Aug. 13, 1996) and cases
     cited in note 14 thereof. See also American Electric Power Co., Release No.
     35-26572 (Sept. 13, 1996). While CONSOLIDATED, and SEI HOLDINGS do not
     directly interpret the meaning of "single integrated public utility
     company," but rather find that the approved marketing activities constitute
     a permissible other business under Section 11(b)(1), the finding by the
     Commission that marketing of electricity by a gas registered holding
     company system is not "detrimental to the carrying out of the provisions of
     Section 11" constitutes substantial support for the proposition urged here:
     that combination companies are likewise not detrimental to the purposes of
     Section 11. The Commission has extended CONSOLIDATED to also allow electric
     registered holding company systems to engage in electric and gas brokering
     and marketing activities.

                                      58
<PAGE>
 
one form over the other.  Furthermore, consumers and regulators today must be --
and are -- more careful with limited energy resources than was required in 1935.
SEE EASTERN UTILITIES ASSOCIATES, Release No. 35-26232 (Feb. 15, 1995) and the
1995 Report at 22-23 and 30-31.  One energy company which allows its customers
to select among different forms of energy based on environmental and economic
factors is a sensible means of allocating scarce national resources under the
purview of local regulators who are most familiar with the needs of local
constituencies.

     This trend is exemplified by several recently announced transactions
including the proposed merger of Texas Utilities, an electric utility, with
Enserch Corp., which is a natural gas concern, and the acquisition by Enron
Corp., a major integrated gas company with electric power marketing business, of
the electric utility Portland General Corp. Referring to such cross industry
transactions, Elizabeth A. Moler, Chairwoman of the FERC said: "They have the
potential to increase competition and make more options available to consumers."
Allen R. Myerson, Enron Will Buy Oregon Utility In Deal Valued at $2.1 Billion,
New York Times, July 23, 1996 at D1. Since these transactions were announced,
Houston Industries, an exempt electric utility holding company, announced a
merger with NorAm Energy Corp., a natural gas pipeline and local gas
distribution company. The most recent announcement is the merger of Enova Corp.,
the holding company for San Diego Gas & Electric, an electric company and
Pacific Enterprises, a natural gas distribution utility. This merger will
produce the largest customer base of any investor owned utility. Benjamin A.
Holden, Deal Valued at $2.8 Billion Would Establish Giant for California Energy,
Wall Street Journal, Oct. 15, 1996 at A3. Each of these companies is responding
to industry realities and customer demands that utilities be capable of
supplying TOTAL energy services, not merely one energy commodity. As the
Commission noted in SEI HOLDINGS, "Industry trends and competitive pressures
make it important for registered system companies to be poised to compete in new
markets as they are created." SEE ALSO CONSOLIDATED NATURAL GAS, Release No. 35-
26512 (Apr. 30, 1996).

     These proposed cross industry transactions clearly demonstrate that market
forces are demanding the unified delivery of energy services and that such
combinations will be BENEFICIAL to the interests of investors and consumers and
accordingly the public interest. None of the announced mergers is anticipated to
be restrained by the Act./25/ Continued reliance on outdated premises which
prevent registered combination companies and do not reflect current competitive
conditions will put registered holding companies at a severe competitive
disadvantage.

     There are many benefits of such combined electric and gas energy services
providers. For customers, the energy service utility provides the convenience
and efficiency of service by a single energy provider and reduces transaction
costs incurred in gathering and analyzing

- ----------------
/25/ It appears that each of the four proposed mergers of predominantly gas
     businesses with predominantly electric businesses can be structured to meet
     the intrastate exemption of Section 3(a)(1). The benefits to investors and
     consumers that will flow from such combinations should not be limited to
     only those enterprises operating within one state, but should be available
     to all investors and consumers.

                                      59
<PAGE>
 
information, contacting energy suppliers and negotiating terms of service.  For
the communities in which the energy service company operates, the combining of
gas and electric operations simplifies community planning on energy-related
matters through coordination with a single energy provider.  For society, the
combination energy services company will allow customers to efficiently choose
energy sources thus ensuring an environmentally efficient allocation of energy.
For utility shareholders and employees, the energy services company is better
able to respond to a competitive environment and to remain an attractive
investment opportunity for shareholders and an appealing employer for utility
employees.  Thus, combination utilities benefit all utility stakeholders.

     The development of energy services companies stems from dramatic changes in
the regulatory framework of the industry.  In the gas area, regulatory changes
have introduced competition into what was formerly a monopoly and have expanded
the availability of "transportation-only service" as an alternative to sales
services from the local gas utility company.  CIPS and UE have "open access"
transportation-only service tariffs on file with their respective state
commissions, and approximately 39% and 14% of the gas delivered by CIPS and UE,
respectively, in 1995 was directly purchased by customers.  FERC Order 636 is
resulting in the separation of the commodity function from the transportation
function at both wholesale and retail levels.

     As a result, combination utilities such as UE and CIPS have less ability
than they did in 1935 to "favor" electric -- the principal policy concern in
decisions ordering the separation of gas and electric systems -- by curtailing
the availability or increasing the price of gas./26/  Combination utilities also
have less incentive to favor electric over gas in light of the increasing
importance of demand-side management, the costs and risks involved in the
construction of new generating capacity and the incentives to avoid such
construction, and, as noted in the June 1994 issue of The Electricity Journal,
the emergence of integrated resource planning involving both gas and electric
service.

     In the electric area, the Energy Policy Act of 1992 and the Public Utility
Regulatory Policies Act of 1978 have introduced competition into the electric
utility business.  As the chairman of the Senate Banking Committee stated
recently:

          "[The Act] was substantially changed by the Energy Policy Act of 1992.
          That law restructured the utility industry to promote greater
          competition for the benefit of energy customers.  The Energy Policy
          Act of 1992 was the product of a cooperative effort on the part of the
          Banking Committee and the Energy Committee to create a more market-
          oriented regulatory framework for the energy industry."  Hearing on
          S.182, The Communications Act of 1994, before the Comm. on Commerce,
          Science and Transportation, 103rd Cong. 2nd

- ----------------
/26/ SEE, E.G., NEES I at 183-184. It is important to note that this issue --
     basically an antitrust issue -- was the principal concern in previous
     decisions ordering the separation of gas and electric systems and clearly
     is no longer applicable to the changed utility competitive environment.

                                       60
<PAGE>
 
          Sess. 344-345 (1994) (prepared Statement of Senator Riegle) (emphasis
          added).

     As a continuation of the trend towards more competition, on April 24, 1996,
the FERC entered Orders 888 and 889.  These orders, entered after more than a
year of debate and public comment, open up wholesale power sales to competition.
All utilities subject to Order 888 must provide transmission service to
qualified wholesale buyers and sellers on terms set by universally applicable
tariffs.  This mandatory "wholesale wheeling" will bring competition to the
market for electricity provided to customers for resale./27/

     Finally, many states have "retail wheeling" measures under discussion which
are likely to have the effect of extending electric supply competition to the
retail level.  Illinois and Missouri are each in the process of evaluating
various options that could increase electric supply competition at the retail
level./28/  Federal legislation is being proposed which would require all states
to adopt a retail wheeling scheme by the year 2000./29/  These initiatives could
soon bring direct commodity competition to retail electric customers much as
such competition already exists for natural gas.  Many of these recent changes
to the energy industry are noted in SEI HOLDINGS, Release No. 35-26581 (Sept.
26, 1996).

     Accordingly, instead of relying on the blunt instrument of competition
BETWEEN gas and electric energy sources (the driving force behind the
Commission's historic interpretation of the Act), national policy has now
created direct competition WITHIN the gas and electric utility industries.
Thus, combination ownership does not eliminate competition, since a combination
utility now has competitors for both gas and electric service.  Moreover,
competition is not an end in itself, but is merely a means to the end of
efficient, cost-effective service.  Since combination ownership creates
efficiencies and no longer has the effect of eliminating competition, there is
no reason for the Commission to prohibit combination ownership, at least under
the circumstances presented here.

- ----------------
/27/ As noted above, UE and CIPS filed their electric open-access transmission
     tariffs in compliance with Order 888 on July 9, 1996.

/28/ The Illinois General Assembly has appointed a special legislative committee
     to develop a policy to introduce retail electric competition. A report will
     be filed, and legislative action is expected in 1996 or 1997. Two Illinois
     utilities have initiated pilot programs which give retail customers a
     choice in electricity providers. CIPS has received approval to participate
     as a supplier in those programs. Further information concerning Illinois
     initiatives is included in CIPSCO's 1995 Form 10-K and its 1996 Form 10-Q's
     filed as exhibits hereto. In Missouri, a joint agreement among the parties
     in the MPSC proceeding to approve the Transaction calls for UE to propose
     by March 1, 1997 an experimental retail wheeling pilot program in Missouri
     for 100 mW of electric power. This agreement, which is pending before the
     MPSC, is filed as Exhibit D-2.3 hereto.

/29/ SEE, E.G., HR 3790 (104th Cong.; 2d Session).

                                       61
<PAGE>
 
     Further, there is nothing in national energy policy that would override the
deference Congress intended should be given to the states on this question.
Indeed, as discussed above, in the 1995 Report the Division recommended that the
Commission interpret Section 11(b)(1) of the Act to allow registered holding
companies to hold both gas AND electric operations as long as each affected
state utility regulatory commission approves of the existence of such a
company./30/

     As noted, the Commission has begun to reevaluate Section 11, to place more
meaning on Section 8 in its review of the ABC Clauses and to accommodate
electric and gas marketing by a single registered holding company in its
decisions in CONSOLIDATED, SEI HOLDINGS and the cases following them.  The
Commission should take the further step, justified by all the same facts,
circumstances and policies, and permitted under CHEVRON and RUST, to determine
that a registered holding company MAY control combination gas and electric
utility companies.

     Such a reemphasis on Section 8 fits within the overall regulatory scheme of
the Act.  Section 11 of the Act is flexible and was designed to change as the
policy concerns over the regulation of utility holding companies changed./31/
Moreover, a registered holding company would still be required to demonstrate
that any acquisition or transaction by which it would become a combination
company would not be detrimental to carrying out the provisions of Section 11 of
the Act.  In other words, its electric system would have to constitute an
integrated electric system and its gas system would have to constitute an
integrated gas system and both systems would have to be capable of being
operated efficiently together (all facts which are clearly present in the
instant case).  See AMERICAN WATER WORKS & ELEC. CO., 2 SEC 972 (Dec. 30, 1937).
Thus, the standards of Section 11 would still have to be met, but the
application of those standards should take into account the fundamental policy
of the Act and allow local regulators to make the threshold determination with
regard to combination companies.

     As shown under Item 3.A.b.ii., the electric systems of UE and CIPS
constitute an "integrated" electric system and the gas systems constitute an
"integrated" gas system.  Moreover, as the Gas Study clearly shows, the electric
system and the gas system TOGETHER are operated as a single integrated energy
company.  The integration standard of the Act is designed to require efficient
operations.  The Gas Study shows that separating the existing gas systems from
the existing fully integrated companies would result in a loss of significant
economies.  These economies relate to more than just corporate operations but
also include substantial savings resulting from such operational matters as
joint gas and electric meter

- ----------------
/30/ The 1995 Report urges flexible interpretation of the ABC Clauses. However,
     as demonstrated herein, there is ample reason, in light of changed national
     energy policy for the Commission to go further and return to its pre-1940s
     reliance on Section 8's clear language to permit State-sanctioned
     combination companies.

/31/ IN RE MISSISSIPPI VALLEY GENERATING CO., 36 SEC 159 (Feb. 9, 1955) (noting
     that Congress intended the concept of integration to be flexible); UNITIL
     CORP., 51 SEC Docket 562 (Apr. 24, 1992) (noting that Section 11 contains a
     flexible standard designed to accommodate changes in the industry).

                                       62
<PAGE>
 
reading, combined field service facilities, combined engineering services,
combined customer service facilities and combined transportation services.
Section 11 was intended to require the separation and independent operation of
utilities that were commonly controlled through the holding company but had no
operational connection.  That situation is NOT presented in any way by the
Transaction, thus the purposes of the Act would not be compromised in any way by
approval of retention of the combination gas and electric businesses.

     Furthermore, the Commission has had the opportunity to review the gas
utility operations of UE and CIPS in prior orders and found that continued
combination activity would not be "detrimental to the public interest or the
interest of investors or consumers" and would not be "detrimental to the
carrying out of the provision of Section 11."  See the CIPSCO and UNION ELECTRIC
cases cited in note 15 above.


                         (4)  UE's and CIPS' Combination Systems Are Not
                              Prohibited by State Law

     Each of UE and CIPS as a combination company is permissible pursuant to the
terms of Section 8 of the Act because the continued combined activities in no
way violate state policy.  Moreover, continuation of each as a combination
company is in the public interest.  The ICC and MPSC have on numerous occasions
over the years had opportunity to review the combined operations in light of
public interest standards in rate cases and other proceedings.  These cases have
approved cost allocation methods, accounting procedures and other factors which
insure that combination activities are not harmful to customers.  Furthermore,
as part of state merger approvals, approval of the ICC will be sought for the
acquisition by CIPS of the UE Illinois gas properties.  Finally, as required by
Section 11, in addition to the fact that the electric systems of CIPS and UE
constitute an integrated electric system, the gas systems will together
constitute an integrated gas system as explained in detail below under Item
3.A.2.B.(ii).

     With respect to Section 8, the combination of electric and gas operations
is lawful under all applicable state laws for each of UE and CIPS and has been
considered and approved indirectly on numerous occasions by Missouri and
Illinois regulators who have, and will continue to have, direct jurisdiction
over the Ameren gas operations.  The use of Ameren as a holding company for two
combination companies will not circumvent any state regulations, since the gas
utility operations of each of UE and CIPS individually will continue to be
regulated by the relevant jurisdictions.  As noted under Item 1.B.2.c. above, UE
and CIPSCO have requested authority for UE to transfer its Illinois gas
facilities to CIPS.  Such a transfer would result in each gas system being under
the regulatory supervision of a single state, thereby enhancing the
effectiveness of local regulation.  Both the ICC and the MPSC will have the
opportunity to review the continued operation of combination companies as part
of their approval of the Transaction and would have the ability to impose
conditions on their approval if they felt it necessary to protect the public
interest.  SEE, E.G., 220 ILCS 5/7-204.  Given the long-standing operation of
combined electric and gas businesses in both Missouri and Illinois, the
statutory authority of the MPSC and ICC and the many opportunities for review of
such combined operations, including the review of the Transaction, Ameren
believes it is clear that state regulators do not believe

                                       63
<PAGE>
 
combination operations lead to harm to utility customers.  UE and CIPSCO will
notify the Commission when the required approvals are received.

     Such state commission actions manifest the recognition by those commissions
that the existence of both gas and electric systems in the Ameren holding
company system will allow Ameren's customers greater choice to meet their energy
needs, especially given the fact that the electric and gas systems operate in
substantially the same territory, while sharing in the synergies that result
from the Transaction.  Moreover, the prior fear that a holding company such as
Ameren would be able to greatly emphasize one form of energy over the other
based on its own agenda has dissipated both because of the competitive nature of
the energy market, which requires utilities to meet customer energy supply
requirements or risk losing the customer to a competing supplier, and because
state regulators will have sufficient control over, and would be unlikely to
approve, a combination company that attempts to undertake such practices.

     For all these reasons, the Commission should change its policy and approve
the retention by UE and CIPS of their respective gas properties as contemplated
by the Transaction.  No policy would be furthered by requiring divestiture, and,
indeed, state AND national policy would be thwarted by such a requirement.

               ii.  Other Businesses

     As a result of the Transaction, the nonutility businesses and interests of
UE and CIPSCO described in Item l.B.3 above will become businesses and interests
of Ameren.  The total assets of all nonutility investments of UE and CIPSCO at
June 30, 1996 ($140.7 million) constituted less than 1.6% of pro forma
consolidated assets of Ameren or about 2% of pro forma consolidated
capitalization.

     From UE, Ameren will hold the following nonutility subsidiaries,
investments or businesses:

- -    Steam heating operations of UE.

- -    Union Electric Development Corporation ("UEDC") -  Ownership of energy
     related or civic and community development related investments in the UE
     service area.  All of UE's nonutility investments are made through UEDC
     (with one exception noted below).  At June 30, 1996, the total amount
     invested in such nonutility investments was $22.4 million.  Except as noted
     below, all of these investments are passive investments in entities in
     which neither UE nor any of its affiliates participates in management or
     exercises control.  These investments are categorized as follows:

          Energy/Utility Related

          Gateway Energy Alliance -- At June 30, 1996, $368,000 was invested in
          a 50% interest in this limited liability corporation, which is
          proposing to develop a chilled water/steam project in the St. Louis,
          Missouri area.  In addition, this

                                       64
<PAGE>
 
          corporation is exploring other non-electric or gas utility related
          activities in St. Louis.

          CellNet, Inc. -- Subsequent to June 30, 1996, $10 million was invested
          (representing 1.3% of the equity) in this corporation, which is
          developing an automated meter reading system for UE as well as other
          utility companies. The amount so invested is included in the aggregate
          amounts of UEDC and CIPSCO Investment nonutility investments referred
          to above.

          EnviroTech Investment Fund LLC -- At June 30, 1996, $2 million was
          invested in or committed directly by UE (not UEDC) to a 6% interest in
          this limited liability corporation, which will make investments in
          various companies developing alternative and renewable energy
          technologies, environmental and waste treatment technologies and
          services, energy efficiency technologies, and other technologies
          related to improving the generation, transmission and delivery of
          electricity. In addition, a UE pension fund over which UE exercises
          investment discretion holds a 9% interest in Envirotech, with $3
          million invested or committed. One UE officer is one of a 10-member
          advisory board of EnviroTech, which is empowered to approve
          investments that fall outside of the types specifically approved by
          EnviroTech's charter documents.

          On-Call Appliance Plan -- UEDC operates an appliance warranty program
          where, for a fee, it provides warranty coverage for certain appliances
          including heating and cooling equipment and water heaters. UEDC has
          invested less than $500,000 in this business.

          Demand Side Management -- UEDC has engaged in providing energy audit
          and energy management services to enable a client to modify its
          facilities and energy usage to reduce energy consumption.

          Community and Civic Development/Venture Capital

          Civic Ventures LLC -- At June 30, 1996, $200,000 was committed, of
          which $20,000 was invested, in a 4.67% interest in this limited
          liability corporation, which is a venture capital fund for minority
          business development. It is expected that such venture capital
          investments will primarily be made in enterprises in Missouri and
          Illinois.

          Gateway National Bank -- At June 30, 1996, $60,000 was invested in
          preferred stock of this corporation, which specializes in minority
          business development lending activities and residential mortgages in
          minority areas. It is expected that such business development loan
          activities will be made primarily in enterprises in Missouri or
          Illinois.

          Laclede's Landing Redevelopment -- At June 30, 1996, $10,000 was
          invested in a less than 5% limited partnership interest in this
          limited partnership,

                                       65
<PAGE>
 
          which is engaged in neighborhood commercial redevelopment projects in
          St. Louis, Missouri.

          Kiel Investments -- At June 30, 1996, $1.8 million was invested in a
          7% limited partnership interest in limited partnerships that own and
          operate the Kiel Center, a 20,000-seat multipurpose arena in St.
          Louis, Missouri and that own the St. Louis Blues Hockey Club. In
          addition, a charitable trust over which UE exercises investment
          discretion holds a 1.37% limited partnership interest with a $650,000
          investment. These investments were made to further economic
          development of downtown St. Louis.

          St. Louis Equity Fund -- At June 30, 1996, $4.2 million was invested
          in or committed to be invested in varying percentages (not greater
          than 23%) of limited partnership interests or limited liability
          interests in eight limited partnerships or limited liability
          corporations that own low-income housing in the St. Louis, Missouri
          area. Such investments produce low-income housing federal and state
          income tax credits for UE. Such investments have been made or
          committed each year since 1989 in an amount not in excess of $600,000
          in any year. An officer of UE and Ameren acts as chairman of the board
          of the Fund and an officer of UE is on the investment policy committee
          of the Fund. Other major St. Louis corporations are investors and also
          participate in various committees./32/

          Housing Missouri -- At June 30, 1996, $300,000 was invested in or
          committed to a 14% interest in this limited liability corporation,
          which owns low income housing in Missouri exclusive of the St. Louis
          area. Such investments produce low income housing federal income tax
          credits for UE./33/ One officer of UE


- ----------------
/32/ UEDC's investments in limited partnerships which are engaged in providing
     low income housing are distinguishable from the situation in MICHIGAN
     CONSOLIDATED GAS CO., 44 SEC 361, AFF'D, 444 F.2d 913 (D.D.C. 1971)
     ("MICHIGAN CONSOLIDATED"). In that case, the registered holding company,
     through wholly owned subsidiaries, was actively engaged in the development,
     financing, construction and other aspects of the business of providing low
     income housing. The Commission found that this business was not
     functionally related to the utility business and could not be retained.
     Here, UEDC is a passive, limited partner investor in a number of low income
     housing projects developed and managed by non-affiliated entities. UEDC's
     investments in these limited partnerships are for the purposes of obtaining
     federal and state income tax credits (see note 37 below) and fulfilling
     UE's civic responsibilities in the communities it serves. Notwithstanding
     MICHIGAN CONSOLIDATED, the Commission has the authority under Section
     9(c)(3) of the Act to permit Ameren to continue to hold these investments
     as being in the ordinary course of business and not detrimental to the
     public interest or the interest of investors or consumers.
   
/33/ See note 32 above.

                                       66
<PAGE>
 
          is on the board of directors and investment policy committee of
          Housing Missouri.

     From CIPSCO, Ameren will hold the following nonutility subsidiaries and
investments:

- -    CIPSCO Investment--organized to manage CIPSCO's nonutility investments. Has
     four first-tier subsidiaries: CIPSCO Securities Company, CIPSCO Leasing
     Company, CIPSCO Energy Company, and CIPSCO Venture Company. CIPSCO
     Investment has no other direct investments or business./34/ At June 30,
     1996, the total amount invested through CIPSCO Investment and its
     subsidiaries was $118.3 million. These investments are categorized as
     follows:

- -    CIPSCO Securities Company--invests in marketable securities. At June 30,
     1996 $48.9 million was invested in hedged portfolios of preferred and
     common stocks and other marketable securities. Of this amount,
     approximately $455,000 relates to common and preferred stock of utility
     companies. All of these investments are made through mutual funds or
     investment managers. In no case does CIPSCO Securities (together with any
     of its affiliates) own more than 5% of any class of securities of any
     issuer thereof.

- -    CIPSCO Leasing Company--invests in long-term leveraged lease transactions.
     At June 30, 1996, $34.1 million was invested pursuant to four holdings in
     leased assets consisting of a commercial jet aircraft, an interest in a
     natural gas liquids plant, natural gas processing equipment and retail
     department store properties.

- -    CIPSCO Energy Company--seeks energy-related investment opportunities. At
     June 30, 1996, $26.1 million was invested in leases, or interests in such
     leases, for nine combustion turbine generating units leased to five
     investor-owned utilities in the United States; and a 24.75 percent interest
     in Appomattox Cogeneration Limited Partnership, which owns a power sales
     agreement for electricity produced at a 40-mW cogeneration facility at
     Hopewell, Virginia.

- -    CIPSCO Venture Company--invests within the CIPS service territory. At June
     30, 1996, $700,000 was invested in a limited partnership for the
     construction of a building which is leased to a manufacturing firm and
     unimproved land to be developed for industrial sites in Illinois.

At June 30, 1996, CIPSCO Investment also had $6.1 million of temporary
marketable investments and no short-term borrowings and had $2,359,400 committed
to investments in Illinois affordable housing programs.

     The nonutility interests held by UE and CIPSCO are shown on Exhibits E-8
and E-9.

- ----------------
/34/ Certain of the marketable securities described below as being held by
     CIPSCO Securities are held directly by CIPSCO Investment.

                                       67
<PAGE>
 
     Standard for retention: Section 11(b)(1) permits a registered holding
company to retain "such other businesses as are reasonably incidental, or
economically necessary or appropriate, to the operations of [an] integrated
public utility system." Under the traditional cases interpreting Section 11, an
interest is retainable if (1) there is an operating or functional relationship
between the operations of the utility system and the nonutility business sought
to be retained, and (2) retention is in the public interest./35/ In addition,
the Commission has stated that "retainable nonutility interests should occupy a
clearly subordinate position to the integrated system constituting the primary
business of the registered holding company."/36/ As set forth more fully below,
the nonutility business interests that Ameren will hold through UE and CIPSCO
all meet this standard.

     In particular, it is important to note that the businesses in question
provide benefits to customers, investors and the public. Businesses such as
CIPSCO Venture Company and the community and civic development investments of
UEDC provide a positive benefit to customers and the public and thereby promote
the company's goodwill, to the benefit of investors. All the other investments
of CIPSCO Investment and UEDC are either marketable securities or longer-term
energy-related, tax advantaged or passive investments. None of the investments
of CIPSCO Investment or UEDC involves the active management of any business.
These investments are financial only and are clearly incidental and DE MINIMIS
in relation to the utility businesses. CIPSCO Investment's business goals are to
produce a return higher than possible for the regulated utility while insulating
the utility from the risks of such investment. UEDC has been used primarily to
enable UE to meet its civic responsibilities to the community and to hold
certain energy related investments. Further, the Transaction is, at heart, a
utility combination, in which the nonutility businesses are small and only
incidentally involved, amounting, in the aggregate, to less than 1.6% of the
consolidated assets and less than 0.5% of consolidated revenues of the Ameren
system. Finally, this is not a case in which an existing registered holding
company system is acquiring new nonutility interests; rather, Ameren is only
seeking authorization to retain the nonutility interests held by UE and CIPSCO
before the Transaction./37/

- ----------------
/35/ SEE, E.G., GENERAL PUBLIC UTILITIES CORP., 32 SEC 807, 839 (Dec. 28, 1951).
     SEE ALSO MICHIGAN CONSOLIDATED GAS CO., 44 SEC 361, 365 (June 22, 1970),
     AFF'D, 444 F.2d 913 (D.C. Cir. 1971); UNITED LIGHT AND RAILWAYS CO., 35 SEC
     516, 519 (Jan. 22, 1954).

/36/ UNITED LIGHT AND RAILWAYS CO., 35 SEC at 519.

/37/ As noted below, Ameren is seeking to make certain additional investments in
     the future. Also, it is important to note that approximately $60 million of
     CIPSCO Investment's $118.3 million total investments are in the form of
     leveraged leases. The investment return on the leveraged lease investments
     is significantly impacted by the favorable tax consequences of such
     investments. Similarly, approximately $4.5 million of UEDC's investments
     produce low-income housing federal income tax credits. Early disposition of
     these investments would generally have serious adverse tax consequences,
     thus negatively impacting expected returns.

                                       68
<PAGE>
 
     The investment programs of UEDC and CIPSCO Investment have been found to be
in the public interest by the ICC. UNION ELECTRIC CO., Docket 94-0237 (Sept. 21,
1994) (approving investments in UEDC) (the "UEDC Order"); CENTRAL ILLINOIS
PUBLIC SERVICE CO., Docket 86-0256 (Oct. 7, 1987, order on reopening Apr. 5,
1989) (approving formation of CIPSCO as holding company for CIPS) (the "CIPSCO
Order")./38/

     The UEDC Order notes that UE's investments in UEDC would be for the purpose
of benefiting and improving UE's business and/or service area and to make
charitable contributions. The ICC found that investments in UEDC for such
purposes "are in the public interest and should be approved." Under the UEDC
Order, UE is limited to investing in UEDC not more than $80 million as of
December 31, 1997, not more than $90 million as of December 31, 1998 and not
more than $100 million at any time thereafter. All investments made through UEDC
and described herein were in compliance with the requirements of the UEDC Order.

     In connection with the formation of CIPSCO as a holding company for CIPS,
the ICC extensively reviewed CIPSCO's proposal to create CIPSCO Investment as a
vehicle for making nonutility investments. CIPS represented that one of the
principal purposes for the holding company reorganization was to permit the
diversification into other business opportunities. The CIPSCO Order notes that
such diversification would be for (1) service area development, (2) greater
utilization of utility resources and (3) direct acquisition of existing business
or other properties. The ICC imposed conditions designed to prevent cross
subsidization and other potential harms to ratepayers in addition to the
protections afforded by Illinois statutes. The ICC found that the CIPSCO
reorganization, including the anticipated nonutility diversification, was in the
public interest by making the findings required by the Illinois Public Utilities
Act./39/

     As described below, Ameren's nonutility businesses should be retainable
under Commission precedent. Further, certain of these investments would be
energy-related companies under the Commission's proposed Rule 58. Under proposed
Rule 58, an energy-related company is a company that derives or will derive
substantially all of its revenues (exclusive of revenues from temporary
investments) from one of the twelve businesses described in the Rule and from
such other activities and investments as the Commission may approve under
Section 10. Proposed Rule 58 would require that the aggregate investment in
"energy related" companies not exceed 15% of the consolidated capitalization of
a registered holding company. As of June 30, 1996, the aggregate investment in
"energy

- ----------------
/38/ The ICC has extensive jurisdiction over the formation of holding companies
     and transactions between regulated utilities and their "affiliated
     interests" and certain other entities. The order approving investments in
     UEDC was entered under the affiliated interest provisions of 220 ILCS 5/7-
     101 and the provisions of 220 ILCS 5/7-102 regulating certain
     intercorporate relationships including diversion of utility assets. The
     order approving the formation of CIPSCO as a holding company for CIPS was
     entered under 220 ILCS 5/7-204. These provisions of Illinois law are
     described in more detail under Item 4.C. below at notes 50 to 56.

/39/ The required public interest findings are set out in note 51 below.

                                       69
<PAGE>
 
related" companies of CIPSCO Investment and UEDC would come within that
limitation and would constitute about 2% of Ameren's consolidated
capitalization.

     In the 1995 Report, in addition to the proposed Rule 58 safe harbor for
energy-related diversification, the Division suggested the adoption of a DE
MINIMIS "budget approach" for limited investments in activities which do not fit
within previous orders of the Commission, yet appear to be within the meaning of
the "other business" clauses of Section 11. The Division suggested that this
approach would allow registered holding companies to make minimal investments
without regard to the identity of each investment up to a certain authorized
amount, provided certain structural considerations were observed which limited
the potential losses to the amount of the investment and insulated the other
system assets by isolating the activity in a separate subsidiary./40/

     Furthermore, under the provisions of Section 9(c)(3), the Commission may
permit investments which it determines are "appropriate in the ordinary course
of business" and "not detrimental to the public interest or the interest of
investors or consumers."

     The following is a description of the specific bases under which the
nonutility investments may be retained:

- -    Community Development (UEDC's Community and Civic Development/Venture
     Capital investments, CIPSCO Venture Company and certain CIPSCO Investment
     commitments): Under Rule 40(a)(5), registered holding company systems are
     permitted to invest in community development projects similar to those in
     which UEDC and CIPSCO Venture Company invest. Under that Rule, investments
     may be made up to $5 million annually in qualified state sponsored
     industrial development companies and up to $1 million annually in other
     local industrial or non-utility enterprises. The Commission has in specific
     cases authorized investments in excess of the dollar limitations of Rule
     40(a)(5). SEE, E.G., EAST OHIO GAS CO., 45 SEC Docket 766 (Feb. 27, 1990)
     (authorizing $500,000 investment in limited partnerships engaged in
     financing development of urban real estate projects aimed at "impact[ing]
     favorably upon urban blight"); OHIO POWER CO., 52 SEC Docket 919 (Aug. 11,
     1992) (authorizing loan to non-profit corporation for construction of
     building in service territory). SEE ALSO NORTHEAST UTILITIES, 40 SEC Docket
     412 (Feb. 24, 1988) ($250,000 investment in locally focused venture capital
     fund); CONSOLIDATED NATURAL GAS CO., 33 SEC Docket 1192 (Aug. 20, 1985)
     ($100,000 investment in fund formed to encourage and finance local
     entrepreneurial ventures). Further, the Commission has approved investments
     in limited partnerships formed to make venture capital investments within
     the affiliated utility's service area. SEE, E.G., GEORGIA POWER CO., 55 SEC
     Docket 1860 (Dec. 15, 1993) (limited partnership formed to provide venture
     capital to high-technology companies within utility's service territory);
     HOPE GAS, INC., 53 SEC Docket 633 (Jan. 26, 1993) (venture capital

- ----------------
/40/ 1995 Report at 89-90. The Division also recommended a flexible approach
     with respect to investments which did not meet the energy-related test of
     proposed Rule 58 and exceeded the DE MINIMIS amount.

                                       70
<PAGE>
 
     partnership designed to provide venture capital to local business); THE
     POTOMAC EDISON CO., 48 SEC Docket 1409 (May 14, 1991) (risky, for-profit,
     economic development corporation created to stimulate and promote growth
     and retain jobs). SEE ALSO MIDDLE SOUTH UTILITIES, INC., 26 SEC Docket 1693
     (Jan. 11, 1983) (authorizing the creation of a nonutility subsidiary to
     investigate new business opportunities). Ameren's total investments in this
     area (made over several years) would amount to $7,656,316.

- -    Temporary Investments/Marketable Securities (CIPSCO Investment and CIPSCO
     Securities Company): Under Section 9(c)(2) and Rule 40(a)(1), registered
     holding company systems are permitted to acquire marketable securities.
     Substantially all the investments of CIPSCO Securities qualify for this
     exception (except to the extent non-debt securities do not fall under such
     Rule). To the extent any holdings are not marketable, the Commission will
     view the "functional relationship" requirement of Section 9(c)(3) less
     strictly when the investment at issue--as here--evolved in connection with
     the system's utility business, is not significant in relation to the
     utility system's total financial resources, and has potential to benefit
     investors and/or consumers. SEE JERSEY CENTRAL POWER & LIGHT CO., 37 SEC
     Docket 1243 (Mar. 18, 1987). CIPSCO Securities Company's investments
     (including the common and preferred stocks) are all highly liquid temporary
     investments or readily marketable securities that are held pending
     application to long-term investment opportunities. Such opportunities could
     include investments in UE or CIPS to the extent necessary and appropriate
     and as approved, to the extent required, by regulators.

- -    Leveraged Leases (CIPSCO Leasing Company): The Commission has approved
     investment in leveraged leases under Section 9(c)(3), which exempts from
     Section 9(a) and Section 10, "such commercial paper and other securities,
     within such limitations, as the Commission may by rules and regulations or
     order prescribe as appropriate in the ordinary course of business of a
     registered holding company or subsidiary company thereof and as not
     detrimental to the public interest or the interest of investors or
     consumers." CENTRAL AND SOUTH WEST CORP., 32 SEC Docket 412 (Jan. 22,
     1985). As the Commission noted in CENTRAL AND SOUTH WEST, title held by the
     lessor in such circumstances is insufficient to make lessor an "owner"
     under Section 2(a)(3) or (4) of the Act. Moreover, attempting to reduce
     one's tax liability via the leveraged lease structure is within the
     ordinary course of business. CIPSCO Leasing Company, like the leasing
     concern in CENTRAL AND SOUTH WEST, makes the type of passive investment
     contemplated by Section 9(c)3). St. Louis Equity Fund and Housing Missouri
     are also tax advantaged investments.

- -    Energy-Related Investments (UEDC's Energy/Utility Related investments;
     CIPSCO Energy Company): The Commission has approved investments similar to
     those made by UEDC described under "Energy/Utility Related" above. In
     CINERGY CORP., 61 SEC Docket 823 (Feb. 20, 1996), the Commission approved
     investments in two subsidiaries that would conduct chilled water
     operations. In CENTRAL AND SOUTH WEST CORP., Release No. 35-26250 (Mar. 14,
     1995), approval was granted to develop and provide meter reading services
     to non-affiliated utility companies. Several other registered holding
     companies have received approval to invest in EnviroTech
  
                                      71
<PAGE>
 
     partnerships. SEE, E.G., SOUTHERN CO., Release No. 35-26240 (Feb. 28,
     1995). Appliance sales, installation and servicing businesses have been
     approved and are included as energy related businesses in Proposed Rule 58.
     SEE, E.G., CONSOLIDATED NATURAL GAS, Release No. 35-26234 (Feb. 23, 1995).
     Finally, the Commission has approved various demand side management or
     energy conservation services, and such activities are included as energy
     related business in Proposed Rule 58. SEE, E.G., EASTERN UTILITIES
     ASSOCIATES, Release No. 35-26232 (Feb. 15, 1995). Under legislation enacted
     in 1985, 1986 and 1992, registered holding companies and their subsidiaries
     may own qualifying cogeneration facilities and qualifying small power
     production facilities (collectively, "QFs"), as defined under the Public
     Utility Regulatory Policies Act of 1978, as amended ("PURPA"), in light of
     the requirements of section 11(b)(1) of the Act./41/ For purposes of the
     Act, a QF constitutes a nonutility investment if made by a registered
     holding company./42/ The 1985 amendment permitted registered gas holding
     companies to acquire cogeneration QFs without regard to the requirement of
     a functional relationship between the QF and the utility business of the
     registered system./43/ The 1986 legislation provided similar relief to
     registered electric holding companies./44/ The two amendments thus
     permitted registered holding companies and their subsidiaries to own
     cogeneration QFs without regard to location. The 1992 amendment eliminated
     the distinction made in the earlier amendments between cogeneration QFs and
     small power production QFs. Sections 32 and 33 of the Act permit registered
     holding companies to invest in EWG's and foreign utility companies subject
     to the requirements of those sections and the commission's rules
     thereunder. CIPSCO Energy Company's investments, like CIPSCO Leasing
     Company, are in the form of leveraged leases of electric generating

- ----------------
/41/ PURPA appears generally in 16 U.S.C. (S) 2601 et seq. Section 3(18) of the
     Federal Power Act ("FPA"), as amended by PURPA, defines a cogeneration
     facility as a facility which produces - (i) electric energy, and (ii) steam
     or forms of useful energy (such as heat) which are used for industrial,
     commercial, heating, or cooling purposes. 16 U.S.C. (S) 796(18)(A). Section
     210 of PURPA encourages energy conservation by directing the FERC to define
     and to prescribe rules that would exempt so-called "qualifying"
     cogeneration facilities and "qualifying" small power production facilities
     from the FPA, the Act, and certain state laws "if the [FERC] determines
     such exemption is necessary to encourage cogeneration and small power
     production." 16 U.S.C. (S) 824a-3(e)(1). The rules adopted by the FERC
     concerning qualifying facilities require electric utilities to interconnect
     with QFs and to offer to purchase power from, and sell power to, QFs, and
     set the general standard for determining the rates for power sales
     transactions with QFs. 18 CFR 292.301-308.

/42/ Under section 210 of PURPA, a QF is exempt under the Act from the
     definition of an "electric utility company" and is entitled to other
     benefits under state and federal law.

/43/ Pub. L. No. 99-186, 99 Stat. 1180 (codified at 15 U.S.C. (S) 79k note
     (1988)).

/44/ Pub. L. No. 99-553, 100 Stat. 3087 (codified at 15 U.S.C. (S) 79k note
     (1988)).

                                      72
<PAGE>
 
     equipment or interests. Proposed Rule 58 would require that the aggregate
     investment in "energy related" companies not exceed 15% of the consolidated
     capitalization of a registered holding company. As of June 30, 1996, the
     aggregate investment in "energy related" companies of UEDC and CIPSCO
     Investment would come within that limitation and would constitute about 2%
     of Ameren's consolidated capitalization.

- -    Steam Heating (UE): The steam heating business of UE, which is located
     exclusively in its service territory and limited to Jefferson City,
     Missouri, serves the needs of the Missouri State Capitol complex and had
     annual revenues, under rates approved by the MPSC, of approximately
     $452,000 for the 12 months ended June 30, 1996 (0.02% of UE's total
     revenues) and net assets of $400,000 (0.005% of UE's total net assets). The
     steam is supplied by a plant formerly used by UE to generate electricity
     for its system. The retention of this business will further Ameren's
     ability to be an energy service company providing consumers with additional
     options to meet their energy needs, thereby allowing Ameren to compete more
     effectively in the energy-service business. The Commission has previously
     approved the retention of such businesses. SEE, E.G., IN RE GENERAL PUBLIC
     UTILITY CORP., 32 SEC 807, 840-841 (Dec. 28, 1951) (Commission authorized
     retention of steam heating systems. Steam from such systems was used to
     generate electricity and sold to customers for heating purposes.) SEE ALSO
     IN RE THE NORTH AMERICAN CO., 11 SEC 194 (Apr. 14, 1942) (Commission
     authorized retention of steam heating operations which provided steam heat
     to customers and was used in the generation of electricity.) In CINERGY
     CORP., 61 SEC Docket 823 (Feb. 20, 1996) (Release No. 35-26474), the
     Commission found a district heating and cooling business which also
     provided steam to be functionally related to the utility business. Since
     the Commission has determined that steam heating operations, whether used
     for internal generation purposes or for direct sale to customers, are
     reasonably incidental to the operation of an electric utility system, this
     business may be retained. The production, conversion and distribution of
     thermal energy products, including process steam and chilled water, is also
     permitted by proposed Rule 58. Thus, the production and distribution of
     thermal energy is reasonably incidental to Ameren's utility operations and
     may be retained.

     In addition to approval to retain investments as described above made
through the date of this Application/Declaration, Ameren hereby seeks approval
to make through UEDC or CIPSCO Investment (or other appropriate subsidiary),
through a date not later than five years from the date of the Commission's
approving order in this docket, the following additional investments:

     1.   the consummation of investments for which commitments have been made
          and are outstanding on or prior to the date of such order in the
          entities described above (such commitments made to date are identified
          above);

     2.   additional investments in the entities described above and investments
          in entities which are substantially similar to the investments
          described above but which fall outside those permitted by Commission
          rule to be made without specific approval;

                                      73
<PAGE>
 
     3.   investments in "energy related" companies within the meaning and to
          the extent permitted by Rule 58, if adopted; and

     4.   investments in other businesses which are appropriate and in the
          ordinary course of business and not detrimental to the public interest
          and which are specifically described in an amendment hereto filed
          prior to the entry of such order;

provided that all such investments, when aggregated with the investments
specifically described above (exclusive of any investment which would be
permitted pursuant to any rule not imposing any aggregate limitation), will not
exceed 15% of Ameren's consolidated capitalization. This aggregate limitation is
consistent with proposed Rule 58 and is consistent with the budget approach
recommended by the Division. SEE 1995 Report at 89-90. All of the investments
outlined above would be made through UEDC, CIPSCO Investment or subsidiaries
thereof and thus be separated from the utility business and, without further
approval of the Commission, will be nonrecourse to Ameren and any of its utility
subsidiaries. Ameren would make such quarterly or other reports to the
Commission describing such investments as are required by the order in this
docket.

          b.   Section 10(c)(2)

     Because the Transaction is expected to result in substantial cost savings
and synergies, it will tend toward the economical and efficient development of
an integrated public utility system, thereby serving the public interest, as
required by Section 10(c)(2) of the Act.

               i.   Efficiencies and Economies

     The Transaction will produce economies and efficiencies more than
sufficient to satisfy the standards of Section 10(c)(2) of the Act. Although
some of the anticipated economies and efficiencies will be fully realizable only
in the longer term, they are properly considered in determining whether the
standards of Section 10(c)(2) have been met. SEE AMERICAN ELEC. POWER CO., 46
SEC 1299, 1320-1321 (July 21, 1978). Some potential benefits cannot be precisely
estimated; nevertheless they too are entitled to be considered: "[S]pecific
dollar forecasts of future savings are not necessarily required; a demonstrated
potential for economies will suffice even when these are not precisely
quantifiable." CENTERIOR ENERGY CORP., 35 SEC Docket 769, 775 (Apr. 29, 1986).

     UE and CIPSCO have estimated the nominal dollar value of synergies from the
Transaction to be approximately $686 million over the 10-year period from 1997
to 2006./45/ The Transaction is expected to yield several types of: (1)
purchasing economies; (2) electric production cost savings; (3) labor cost
savings; (4) administrative and general savings; (5) natural gas economies; and
(6) other operations savings. The amount of savings currently estimated in each
of these categories, on a nominal dollar basis, is summarized in the table
below:
  
- ----------------
/45/ See Note 2 herein.

                                      74
<PAGE>
 
<TABLE>
<CAPTION>
 
               Category                       Amount
               --------                   (in millions)
                                          -------------
<S>                                         <C>
    Purchasing Economies                       $ 84
    Electric Production Cost Savings           $101
    Labor Cost Savings                         $267
    Administrative and General Savings         $235
    Natural Gas Economies                      $ 37
    Other Operations Savings                   $ 35
                                               ----
       Total Gross Savings                     $759
    Transaction Costs                           (22)
    Transition Costs                            (51)
                                               ----
       Net Merger Savings                      $686
</TABLE>

UE and CIPSCO have estimated that, overall, on a nominal dollar basis, merger
savings will flow to UE and CIPS in proportion to the size of the electric and
natural gas businesses in each company. About 70 percent of electric savings
will flow to UE and 30 percent will flow to CIPS. In natural gas, the split is
expected to be about 30 percent to UE and 70 percent to CIPS.

     These expected savings exceed the anticipated savings in a number of recent
acquisitions approved by the Commission. SEE, E.G., KANSAS POWER & LIGHT CO., 50
SEC Docket 1224 (Feb. 5, 1992) (expected savings of $140 million over five
years); IE INDUSTRIES, 48 SEC Docket 1735 (June 3, 1991) (expected savings of
$91 million over ten years); MIDWEST RESOURCES, 47 SEC Docket 252 (Sept. 26,
1990) (estimated savings of $25 million over five years). The savings are
comparable to other recently completed or proposed transactions that are similar
in scope to the Ameren Transaction. CINERGY CORP. 57 SEC Docket 2353 (Oct. 21,
1994) ($895 million over 10 years); NEW CENTURIES ENERGIES, Inc. (File No. 70-
08787) ($770 million over 10 years); INTERSTATE ENERGY CORP. ($700 million over
10 years). The Ameren savings categories are described in greater detail below.

          Purchasing Economies: CIPSCO and UE estimate that approximately $84
     million in savings on a nominal dollar basis can be achieved. Combining
     companies can achieve savings through the centralization of purchasing and
     inventory functions related to the construction, operation and maintenance
     of generating plants, service centers, warehouses and headquarters. In
     addition, combining the purchases of the two companies results in greater
     purchasing power, which provides additional cost savings through lower unit
     prices.

          With respect to the purchase of goods, i.e, materials and supplies,
     savings can be realized in the procurement of commodity items, consumables
     and equipment, e.g., pipe, connectors and fittings and tools for gas
     utilities and conductors, wire, cable and other equipment for electric
     utilities. Savings also may be realized in the cost associated with
     maintaining appropriate stock levels of inventory. In addition,
     standardization of system components such as gas mains and pipe for gas
     utilities or copper wire, transformers and conductors for electric
     utilities, can be achieved through a common design process, providing
     additional savings opportunities.
  
                                      75
<PAGE>
 
          With respect to the procurement of services, particularly contract
     services such as pipe inspection, trenching and construction, line and pole
     inspection, landscaping and tree trimming and outage assistance, a
     combination will result in a consolidation of expenditures and, typically,
     in contracting for such services from fewer sources. Cost savings are
     created by achieving a lower per unit cost for the service provided due to
     a broader contract or the repackaging of work into more attractive options
     to the contractor. This volume purchasing of services is the primary method
     through which service procurement savings are realized.

          Electric Production Cost Savings: CIPSCO and UE estimate that
     production cost savings (including fuel savings) of approximately $101
     million on a nominal dollar basis will result. Of this total, $74 million
     relates to energy production savings based on joint dispatch and $9 million
     of savings is due to sharing of non-spinning reserves, coordinated
     maintenance scheduling and improved heat rates. Another $18 million in
     savings relates to coal purchases and sulfur dioxide emission allowances
     made possible by joint purchases and operation. The EPRI MIDAS production
     costing computer model was used to estimate the savings possible from joint
     dispatch. The model is commonly used in the analysis of different
     production costing scenarios in long range planning such as for least cost
     planning. In simple terms, three computer simulations were performed. The
     first two simulations assumed that UE's and CIPS' generation systems would
     be operated as stand-alone systems. The third simulation assumed that the
     combined generation resources of the two systems would be operated as one
     system. Annual energy costs for the three simulations were collected. The
     two stand-alone system simulation results were added together and compared
     to the results for the combined system operation simulation. The difference
     in the two results was identified as the potential savings from joint
     dispatch.

          Labor Cost Savings: CIPSCO and UE estimate that a net reduction in
     labor costs of approximately $267 million on a nominal dollar basis can be
     achieved as a result of the Transaction through elimination of
     approximately 320 equivalent duplicative positions in certain corporate,
     administrative and technical-support functions. The labor reductions are
     estimated to be achieved essentially through attrition.

          Administrative and General Savings: CIPSCO and UE estimate that a
     reduction in non-labor administrative and general expenses totaling
     approximately $235 million on a nominal dollar basis would be possible
     through reductions in certain non-labor costs, primarily through the
     consolidation of overlapping or duplicative programs and expenses. The
     duplicative programs include information services, professional services,
     vehicles, miscellaneous overhead, benefits administration, insurance,
     advertising, shareholder services, and facilities.

          Natural Gas Economies: The companies estimate that, in the first 10
     years after the Transaction, $37 million of savings can be realized by
     combining the gas supply functions of the companies. The savings are
     expected to come from: reducing the amount of peak day capacity needed,
     reducing the amount of balancing services

                                      76
<PAGE>
 
     that are needed, using the increased competitive leverage of the combined
     companies to get better rates on the capacity they reserve, and integrating
     the purchases of gas for the two gas systems on common pipelines. Of
     course, some of the savings in corporate programs and personnel costs will
     also reduce costs allocable to the gas service function.

          Other Operations Savings: CIPSCO and UE estimate that other operations
     savings of approximately $35 million on a nominal dollar basis will be
     achieved as a result of the Transaction. These savings are made possible by
     consolidating power plant services, extending the time period between
     routine power plant maintenance outages and by sharing work and load
     management technology in region operations.

     Additional Expected Benefits: In addition to the benefits described above,
there are other benefits which, while presently difficult to quantify, are
nonetheless substantial. These other benefits include reduced future rate
increases, increased marketing opportunities, expanded management resources,
more diverse service territory and increased community involvement.

          Reduced Future Rate Increases: The operating cost savings resulting
     from the Transaction will allow both UE and CIPS to hold future rate
     increases below what would otherwise be necessary for the individual
     utilities, thus maintaining the low-cost advantage currently enjoyed by
     customers of CIPS and UE.

          Increased Marketing Opportunities: The combined companies will have
     enhanced opportunities for marketing in the wholesale and interchange
     markets. The combined companies will have electric interconnections with 28
     other utility systems, enhancing opportunities to make sales transactions
     with these systems and others.

          Expanded Management Resources: In combination, UE and CIPSCO will be
     able to draw on a larger and more diverse mid- and senior-level management
     pool to lead the combined company forward in an increasingly competitive
     environment for the delivery of energy.

          More Diverse Service Territory: The combined service territories of UE
     and CIPS will be larger and more diverse than either of the service
     territories of UE or CIPS as independent entities. This increased
     geographical diversity will reduce the exposure to changes in economic or
     competitive conditions in any given sector of the combined service
     territory.

          Community Involvement: Ameren will be a stronger partner in the
     economic development efforts of the communities UE and CIPS now serve. The
     philanthropic and volunteer programs currently maintained by the two
     companies will be continued with the enhanced resources of the combined
     entity. Moreover, Ameren's substantial customer base will give it a
     stronger voice in national policy debates on issues affecting the region.

                                      77
<PAGE>
 
               ii.  Integrated Public Utility System

                         (A)  Electric Utility System

     As applied to electric utility companies, the term "integrated public
utility system" is defined in Section 2(a)(29)(A) of the Act as:

          a system consisting of one or more units of generating plants and/or
          transmission lines and/or distributing facilities, whose utility
          assets, whether owned by one or more electric utility companies, are
          physically interconnected or capable of physical interconnection and
          which under normal conditions may be economically operated as a single
          interconnected and coordinated system confined in its operation to a
          single area or region, in one or more states, not so large as to
          impair (considering the state of the art and the area or region
          affected) the advantages of localized management, efficient operation,
          and the effectiveness of regulation.

On the basis of this statutory definition, the Commission has established four
standards that must be met before the Commission will find that an integrated
public utility system will result from a proposed acquisition of securities:

     (1) the utility assets of the system are physically interconnected or
     capable of physical interconnection;

     (2) the utility assets, under normal conditions, may be economically
     operated as a single interconnected and coordinated system;

     (3) the system must be confined in its operations to a single area or
     region; and

     (4) the system must not be so large as to impair (considering the state of
     the art and the area or region affected) the advantages of localized
     management, efficient operation, and the effectiveness of regulation.

ENVIRONMENTAL ACTION, INC. V. SEC, 895 F.2d 1255, 1263 (9th Cir. 1990) (citing
IN RE ELECTRIC ENERGY, INC., 38 SEC 658, 668 (1958)). The Transaction satisfies
all four of these requirements.

     First, UE and CIPS are already physically interconnected, as further
described herein.  See Item 1.B.4.  Both UE and CIPS are physically
interconnected with EEI.

     Second, UE and CIPS will be economically operated as a single
interconnected and coordinated system. CIPS and UE are currently interconnected
at nine tie points, four of which have two-way transfer capability where power
and energy can flow freely in either direction and five of which are operated as
radial ties where the power and energy can be moved in only one direction. The
interconnections with two-way transfer capacity have a maximum total transfer
capability of 791 mW. With the transfer of UE's Illinois service area and its
associated electric properties to CIPS, the companies will have an additional

                                      78
<PAGE>
 
amount of tie capability, in excess of 1,000 mW, which is for power delivery
from UE to CIPS. CIPS and UE intend to jointly dispatch their generating
resources. UE and CIPS have considered the transfers resulting from joint
dispatch, and have concluded that these changes should not cause constraints on
the UE/CIPS interfaces or materially change the transfer capability that would
exist if there were no joint dispatch.

     UE and CIPS are members of the Illinois-Missouri Pool with Illinois Power
Company. In addition, both utilities are members of MAIN, which is one of the
nine regional reliability councils of NERC. Membership in these groups involves
the coordination of long-range system planning and day-to-day operations. In
addition, both companies have a number of interchange agreements with other
utilities. Joint dispatch should not affect the reliability of the region, since
both companies have been complying with the same planning and operating
guidelines established in MAIN and NERC, and both companies will continue to
comply with such guidelines, individually or through their single control area,
as appropriate.

     UE and CIPS will operate their combined generation and transmission
facilities as a single control area. A control area is defined by NERC as an
electric system that conforms to consistently applied regional and national
reliability standards, guidelines or criteria, and is capable of adjusting its
generation to meet its constantly changing demand, meet its interchange schedule
with other systems and contribute to the frequency control of the bulk electric
network of which it is a part. Presently, UE and CIPS operate as separate
control areas. Every control area operator is responsible for having, on an
hourly basis, sufficient generation or purchases to supply all of the expected
load of its customers, plus enough operating reserve to provide for loss of
generation or unexpected load increases. Presently, UE and CIPS perform the
activities described above for their individual control areas. After the
Mergers, these activities will be accomplished by a single control area. The
control area will interface directly with 28 other utilities to economically buy
and sell capacity and energy, using the generation and transmission resources of
the combined system. For dispatch purposes, all load requirements will be
combined and all resources will be controlled by a single automatic generation
control located in St. Louis at Ameren Services.

     By dispatching on a single-system basis, the total production costs will be
lower than if the two companies were dispatched separately. As load on system
increases, it will be served instantaneously by the next available, lowest cost
source of generation, regardless of whether that generation is owned by UE or
CIPS, or, in the case of a purchase, regardless of whether the source is
connected to UE or CIPS. This change in operation should enhance interchange
purchase and sales activities. The system operators of both companies now
communicate with each other several times each day, as they do with other
interconnected companies. Subsequent to the Mergers, one group of system
operators will have all the resources and information that the two separate
groups previously had to communicate to each other. Both UE and CIPS as a single
control area will be able to interface directly with 28 interconnected
utilities, optimizing the sale and purchase opportunities. The result should be
reduced costs for UE and CIPS, because each company will have improved access to
a greater number of competitive sources of supply, thus increasing the potential
for purchases and sales. In particular, a combined operation will

                                      79
<PAGE>
 
eliminate the need for a transmission charge or adder that UE or CIPS would
otherwise have had to pay to effect a purchase or sale across the other's
system. Today, the existence of such charges may preclude consummation of
certain transactions. For example, assume CIPS has two available sources of
energy, one connected with it ("Utility A"), and one connected with UE ("Utility
B"). Assume further that the price of Utility A's energy is higher than that of
Utility B's energy. However, the cost of moving Utility B's energy across UE's
system to CIPS' system exceeds the difference between Utility A's and Utility
B's prices. In such circumstances, CIPS will purchase from Utility A, because
the total cost is lower. Post-Merger, CIPS would purchase from Utility B,
because there would be no additional transmission charge, and Utility B would be
the least-cost option.

     For integration purposes under the Act, what is relevant is that: (i)
Ameren will have sufficient internal transmission capacity to fully accommodate
the anticipated transfers between CIPS and UE under central economic dispatch;
and (ii) Ameren's estimated generation capacity and production cost savings can
be fully achieved without the need for contracting for transmission service with
others. The scheduled transfers to achieve the $101 million in electric
production cost savings can be achieved without exceeding the capability of the
transmission facility owned by the Ameren system.

     Third, this single integrated system will be confined to the area
delineated on Exhibit E-1, covering portions of Missouri and Illinois.

     Fourth, the system is not so large as to impair the advantages of localized
management, efficient operations, and the effectiveness of regulation. After the
Transaction, CIPS and UE will maintain their current headquarters as subsidiary
headquarters and as local operating headquarters for the areas they presently
serve, while Ameren maintains the system headquarters. This structure will
preserve all the benefits of localized management CIPS and UE presently enjoy
while simultaneously allowing for the efficiencies and economies that will
derive from their strategic alliance. Furthermore, as described earlier, the
system will facilitate efficient operation.

     Finally, the Ameren system will not impair the effectiveness of state
regulation. UE and CIPS will continue their separate existence as before and
their utility operations will remain subject to the same regulatory authorities
by which they are presently regulated, namely the ICC, the MPSC, the FERC and
the NRC. Orders approving the Transaction by each of these agencies will be
filed herein.

     In Missouri, UE has entered into a Stipulation and Agreement which, among
other matters, addresses the MPSC's jurisdiction following the Merger. UE has
agreed that the MPSC will retain retail rate authority over costs charged under
agreements with affiliates. In addition, UE has agreed to provide the MPSC
appropriate access to books, records, officers and employees of all Ameren
affiliates to permit exercise of this regulatory authority. A copy of the
Stipulation and Agreement is filed as Exhibit D-2.3. A similar jurisdictional
offer has been made to the ICC.

                                      80
<PAGE>
 
                         (B)  Gas Utility System

     Section 2(a)(29)(B) defines an "integrated public utility system" as
applied to gas utility companies as:

          a system consisting of one or more gas utility companies which are so
          located and related that substantial economies may be effectuated by
          being operated as a single coordinated system confined in its
          operation to a single area or region, in one or more States, not so
          large as to impair (considering the state of the art and the area or
          region affected) the advantages of localized management, efficient
          operation, and the effectiveness of regulation: provided, that gas
          utility companies deriving natural gas from a common source of supply
          may be deemed to be included in a single area or region.

The Ameren gas utility system will meet the standard set forth in Section
2(a)(29)(B) and, therefore, will satisfy the requirements of Sections 10(c)(1)
and (2) and should be approved by the Commission.

     First, both the Commission's limited precedent and current technological
realities indicate that the Ameren gas utility system will operate as a
coordinated system confined in its operation to a single area or region because
it will derive natural gas from common sources of supply, transportation and
storage. The gas utility operations of UE and CIPS will operate in a single area
or region covering portions of Missouri and Illinois. See Exhibits E-5 and E-7
hereto. The Commission has not traditionally required that the pipeline
facilities of an integrated system be physically interconnected,/46/ and instead
has looked to such issues as from whom the distribution companies within the
system receive much, although not all, of their gas supply./47/ The Commission
also has considered obtaining gas from a common pipeline/48/ as well as from
different pipelines when the gas

- ----------------
/46/ SEE IN RE PENNZOIL CO., 43 SEC 709 (Feb. 7, 1968) (finding an integrated
     system where facilities both connected with an unaffiliated transmission
     company but not each other). SEE ALSO, IN RE AMERICAN NATURAL GAS CO., 43
     SEC 203 (Dec. 12, 1966) ("It is clear the integrated or coordinated
     operations of a gas system under the Act may exist in the absence of such
     interconnection").

/47/ SEE, E.G., IN RE PHILADELPHIA CO. AND STANDARD POWER AND LIGHT CO., 28 SEC
     35 (June 1, 1948) ("most of the gas used by these companies in their
     operations is obtained from common sources of supply"); CONSOLIDATED
     NATURAL GAS CO., 45 SEC Docket 672 (Feb. 14, 1990) (finding integrated
     system where each company derived natural gas from two transmission
     companies, although one such company also received gas from other sources).

/48/ IN RE NORTH AMERICAN CO., 31 SEC 463 (May 19, 1950) (finding Panhandle
     Eastern pipeline to be a common source of supply).

                                      81
<PAGE>
 
originates from the same gas field in determining a common source of supply./49/
Since the time of most of these decisions, the state of the art in the industry
has developed to allow efficient operation of systems whose gas supplies derive
from many sources.

     Because natural gas is made up of naturally occurring elements found in
geologic formations and is not a refined energy product produced from other
fuels, the natural gas and electricity industries developed in different
structures. The gas industry developed in three separate segments:

         Function                    Ownership
         --------                    ---------

         Production                  Independent Producers
         Transmission/Storage        Interstate Pipelines/Storage Companies
         Distribution/Retail Sales   Local Distribution Companies (LDCs)

While the UE and CIPS gas systems are not completely physically interconnected,
they will functionally perform as a coordinated system through the centrally
coordinated purchase of natural gas from common sources of supply, delivery
through common interstate pipelines (all of which are open access transportation
only pipelines under FERC Order 636) and storage of gas in common underground
storage facilities. This coordination will also result in greater, not lesser,
efficiency.

     Most of CIPS' gas systems are currently integrated by way of physical
interconnects and contractual arrangements. This part of CIPS' overall system
comprises the areas that are served by PEPL, TRKL, TETCO and NGPL, and
represents over 80% of the total peak day demand of CIPS' entire gas system.
UE's gas systems, which are served from the same pipelines that serve the
combined part of CIPS' system, can be integrated with CIPS' integrated systems,
at least to a degree, for joint dispatch. In addition, the companies are
considering acquisition of capacity contracts on the pipelines that serve the
integrated systems. This would allow deliveries to any point on the combined gas
systems. Further, the companies may seek to have all the delivery points to the
combined systems under these contracts treated as a central delivery point. This
would increase flexibility to use the contracts with the lowest cost first
regardless of where on the combined systems the gas is needed.

     As explained previously under Items 1.B.2.a.v.; 1.B.2.b.v. and 1.B.5., UE
and CIPS: (i) each contract for interstate pipeline transportation services from
PEPL, TETCO and NGPL; (ii) each contract for underground storage services from
PEPL, TETCO and NGPL; (iii) each procure transportation services from certain
non-common pipelines (MRTC, TRKL, TXG, MW, MPC and IP, and one local gas
distribution company, NIGAS) and non-

- ----------------
/49/ SEE IN RE CENTRAL POWER CO. AND NORTHWESTERN PUBLIC SERVICE CO., 8 SEC 425
     (Jan. 6, 1941) (declaring an integrated system to exist where two entities
     purchase from different pipeline companies since "both pipelines run out of
     the Otis field, side by side, and are interconnected at various points in
     their transmission system; and that they are within two miles of each other
     at Kearney").

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<PAGE>
 
common storage providers (Eastex, Western Gas Resources Storage Inc., MRTC and
TRKL) and (iv) each procure natural gas supplies from producers in common supply
areas: the Mid-Continent and Gulf Coast regions.

     Integrated UE and CIPS gas operations would present opportunities to use
more consolidated gas supply procurement to increase competition among
suppliers, transporters and storage providers to capture approximately $37
million in delivered gas cost reductions. One hundred percent of these
reductions will flow directly through to customers under the purchased gas
adjustment (PGA) clauses in UE's and CIPS' tariffs if all of the system
purchased gas costs continue to receive PGA treatment as at present. Integrated
gas operations could also offer opportunities for more efficient utilization of
UE and CIPS peak shaving operations and more efficient reserve margins. With the
cooperation of the common pipeline interconnections, the ability to engage in
swap transactions will also exist.

     Finally, the system will not be so large as to impair the advantages of
localized management or the effectiveness of regulation. As set forth in Item
3.A.2.a.i.(A)(2), the combined gas system will be smaller than many regional
competitors. Further, as noted in Item 3.A.2.b.(ii)., localized management will
be preserved. The centralized gas supply functions of Ameren will be located in
Springfield and the local functions will continue to be handled from St. Louis
and Springfield. Management will, accordingly, remain close to the gas
operations, thereby preserving the advantages of local management.

     As also set forth in Item 3.A.2.(b)(ii)(A), from a regulatory standpoint,
there will be no impairment of regulatory effectiveness. The same regulators
currently overseeing these gas operations will continue to have jurisdiction
after the Transaction except that regulation will be simplified and enhanced by
transferring the UE Illinois properties to CIPS.

     For all of these reasons, the post-Transaction gas operations satisfy the
integration requirements of Section 2(A)(29)(B).

     3.  Section 10(f)--Compliance with State Law

     Section 10(f) provides that:

     The Commission shall not approve any acquisition as to which an application
     is made under this section unless it appears to the satisfaction of the
     Commission that such State laws as may apply in respect to such acquisition
     have been complied with, except where the Commission finds that compliance
     with such State laws would be detrimental to the carrying out of the
     provisions of section 11.

As described in Item 4 of this Application, and as evidenced by the MPSC and ICC
applications seeking authorization of the Transaction, Ameren intends to comply
with all applicable state laws related to the Transaction.

                                      83
<PAGE>
 
     4.  Section 9(a)(1)

     Ameren is also requesting authorization from the Commission under Section
9(a)(1) of the Act for the acquisition by it of the voting securities of Ameren
Services, as part of the Transaction. Section 9(a)(1) of the Act requires a
holding company or any subsidiary thereof to obtain authorization from the
Commission before acquiring "any securities or utility assets or any other
interest in any business." In order to approve an acquisition under Section
9(a)(1), the Commission must find that such acquisition meets the standards of
Section 10 of the Act, which in turn requires compliance with Sections 8 and 11
of the Act. Ameren is requesting the Commission's authorization for these
transactions at this time to enhance administrative efficiency even though it
will not be subject to Section 9(a)(1) until consummation of the Transaction.

     The acquisition by Ameren of the common stock of Ameren Services, making it
a wholly-owned subsidiary of Ameren, will allow Ameren to create a subsidiary
service company and capture economies of scale from the centralization of
administrative and general services to be provided to system companies. Since
the cost of such services is considered in rate cases, the benefits realized as
a result of Ameren Services will accrue to utility ratepayers. Virtually every
registered holding company has one or more subsidiary service companies
performing many of the same functions as Ameren Services will perform. The
acquisition of Ameren Services is in the public interest, will not unduly
complicate the capital structure of Ameren and will not cause the Ameren system
to violate any other provision of the Act. Ameren Services will have only one
class of authorized stock, which will be its common stock, all of which will be
owned by Ameren. The operation of Ameren Services and the allocation of cost for
its respective operations, are discussed in detail in Item 3.C. below.

     Ameren is also requesting authorization to acquire all of the issued and
outstanding common stock of CIPSCO Investment, which serves as an intermediate
holding company for certain of the system's nonutility subsidiaries, and also to
acquire indirectly the stock of UEDC. CIPSCO Investment and UEDC provide a clear
separation between the system's utility and nonutility operations and allow for
centralization of the nonutility operations. CIPSCO Investment and UEDC will
receive services from Ameren Services. Costs for any work performed for CIPSCO
Investment or UEDC by Ameren Services will be charged to CIPSCO Investment or
UEDC in accordance with the appropriate allocation method set forth in the
General Services Agreement.

     Ameren's acquisition of its own stock to satisfy the requirements of the
Ameren Plans is discussed in Item 3.A.5. Finally, Ameren is requesting approval
of the indirect acquisition of 60% of the common stock of EEI. As noted above,
the acquisition of EEI, as an incidental part of the acquisition by Ameren of
CIPS and UE, satisfies the requirements of Section 10 and 11 of the Act.

     5.  Other Applicable Provisions--Sections 6, 7, 12 and 13

     UE and CIPSCO each have dividend reinvestment plans and, along with CIPS,
employee benefit plans which may require the issuance of common stock, described
above

                                      84
<PAGE>
 
as the Ameren Plans. The Merger Agreement provides for Ameren to adopt benefit
plans with substantially the same provisions as certain of the existing benefit
plans. Ameren hereby requests authority for a period of five years following
entry by the Commission of an order in this docket, to issue or acquire or cause
to be acquired on the open market or otherwise up to 19 million shares of Ameren
Common Stock pursuant to such existing and amended or replacement Ameren Plans.
(Copies or summaries of such plans will be filed by amendment.)

     The issuance by Ameren of shares of Ameren Common Stock pursuant to the
Ameren Plans and to effect the Transaction will comply with the standards of
Section 7 of the Act. With reference to Sections 7(c) and 7(d) of the Act,
Ameren Common Stock has a par value of $0.01 per share, will be Ameren's only
outstanding voting security and will not be preferred as to dividends or
distributions over any other security of Ameren. Ameren Common Stock is
reasonably adapted to Ameren's security structure (common stock being the
cornerstone of a registered holding company's capital structure).

     As noted in Item 1.B.2.c. above, UE proposes to transfer the Transferred
Utility Facilities to CIPS subject to approval of the MPSC and ICC. It is
contemplated that after consummation of the Transaction, UE will declare an in-
kind dividend of the Transferred Utility Facilities to Ameren and Ameren in turn
will make an in-kind capital contribution of the Transferred Utility Facilities
to CIPS. The transfer will be made free of the lien of the UE mortgage
indentures. This transfer is to enhance the effectiveness of state regulation
and increase the efficient operations of the Ameren system by concentrating all
utility facilities in Illinois in one company. This transfer will be consistent
with the requirements of Sections 9(a)(1), 10, 11 and 12 of the Act. SEE IN RE
MANUFACTURERS LIGHT AND HEAT CO., Release No. 35-13862 (Nov. 7, 1958).

     The requirements of Section 13 are discussed under Item 3.C. below.
Solicitation of proxies in connection with the benefit plans is discussed in
Item 1.D.4. above.

B.   Intra-system Financing

     UE has obtained ICC approval to make advances to or investments in UEDC as
permitted by the UEDC Order. See Item 3.A.2.a.ii. above. UE funds UEDC's
investments through such intercompany loans or advances or investments from time
to time. These intercompany loans bear interest at a market rate and are short-
term in nature or due on demand.

     In the ordinary course of business, there have been and will continue to be
intercompany loans and advances among CIPSCO and its direct and indirect
nonutility subsidiaries including CIPSCO Investment. Generally, if at any time
during the year any of the subsidiaries of CIPSCO Investment has excess cash,
such excess is loaned to CIPSCO Investment or CIPSCO Securities. These borrowed
funds, as well as any funds borrowed under a $30 million line of credit
available to CIPSCO Investment or other bank lines, are used by CIPSCO
Investment to finance its own activities or are loaned to its subsidiaries. Such
subsidiaries will borrow funds from CIPSCO Investment, to the extent available,
to finance their own activities or to finance the activities of entities in
which they have an

                                      85
<PAGE>
 
equity investment. These intercompany loans bear interest at a market rate. The
loans are generally short-term in nature or due on demand.

     CIPSCO has entered into a Support Agreement dated May 21, 1992 pursuant to
which it has agreed to maintain the financial condition of CIPSCO Investment.
Beneficiaries of the Support Agreement include the lenders under the credit
agreement referred to above. In addition, CIPSCO has entered into certain
support letters and CIPSCO Investment has entered into certain guaranties in
connection with leveraged lease investments. A listing of these support
agreements and guaranties is set forth on Exhibit B-6.

     UE and CIPS hereby request that the Commission approve the continuance of
all outstanding and committed intercompany loans and advances, support
arrangements and guarantees.

     Ameren expects to establish a "money pool" similar to those maintained by
other registered systems whereby system companies may invest amounts temporarily
not required for their business and also borrow funds when needed. Ameren will
file for necessary approvals of the money pool to be effective after
consummation of the Transaction.

C.   Ameren Services

     In order to realize economies, certain administrative and service functions
will be consolidated. Ameren Services will provide UE, CIPS, UEDC and CIPSCO
Investment, pursuant to the General Services Agreement, with one or more of the
following: building services, accounting, corporate communications, corporate
planning, customer services and division support, economic development, energy
supply, engineering and construction, environmental services and safety, fossil
fuel procurement, gas supply, general counsel, human resources, industrial
relations, information services, internal audit, marketing, merger coordination,
motor transportation, purchasing, real estate, stores, tax, treasury operations,
investor services and other services. In accordance with the General Services
Agreement, services provided by Ameren Services will be directly assigned,
distributed or allocated by activity, project, program, work order or other
appropriate basis. To accomplish this, employees of Ameren Services will record
transactions utilizing existing data capture and accounting systems. Costs of
Ameren Services will be accumulated in accounts and directly assigned,
distributed and allocated to the appropriate company in accordance with the
guidelines set forth in the General Services Agreement. (See Exhibit B-4.) UE
and CIPS are currently developing the system and procedures necessary to
implement the General Services Agreement. It is anticipated that Ameren Services
will be staffed primarily by transferring personnel from the current employee
rosters of UE and CIPS. Ameren Services' accounting and cost allocation methods
and procedures will be structured so as to comply with the Commission's
standards for service companies in registered holding company systems and are
described in Exhibit B-5 hereto. Ameren Services will maintain its books and
records in accordance with the FERC Uniform System of Accounts. In determining
how to charge and allocate various costs, Ameren Services will rely on the
"Uniform System of Accounts for Mutual Service Companies and Subsidiary Service

                                      86
<PAGE>
 
Companies" established by the Commission for service companies of registered
holding company systems.

     As compensation for services, the General Services Agreement will provide
for the client companies to "pay to Service Company the cost of such services,
computed in accordance with applicable rules and regulations (including, but not
limited to Rules 90 and 91) under the Act and appropriate accounting standards."
Where more than one company is involved in or has received benefits from a
service performed, the General Services Agreement will provide that client
companies will pay their fairly allocated pro rata share in accordance with the
methods set out in a schedule to the General Services Agreement. Thus, charges
for all services provided by Ameren Services to affiliated utility companies and
nonutility companies will be on an "at cost" basis as determined under Rules 90
and 91 of the Act.

     No change in the organization of Ameren Services, the type and character of
the companies to be serviced, the methods of allocating costs to associate
companies, or in the scope or character of the services to be rendered subject
to Section 13 of the Act, or any rule, regulation or order thereunder, shall be
made unless and until Ameren Services shall first have given the Commission
written notice of the proposed change not less than 60 days prior to the
proposed effectiveness of any such change. If, upon the receipt of any such
notice, the Commission shall notify Ameren Services within the 60-day period
that a question exists as to whether the proposed change is consistent with the
provisions of Section 13 of the Act, or of any rule, regulation or order
thereunder, then the proposed change shall not become effective unless and until
Ameren Services shall have filed with the Commission an appropriate declaration
regarding such proposed change and the Commission shall have permitted such
declaration to become effective.

     Ameren will structure the General Services Agreement so as to comply with
Section 13 of the Act and the Commission's rules and regulations thereunder.

     Rule 88(b) provides that "[a] finding by the Commission that a subsidiary
company of a registered holding company . . . is so organized and conducted, or
to be so conducted, as to meet the requirements of Section 13(b) of the Act with
respect to reasonable assurance of efficient and economical performance of
services or construction or sale of goods for the benefit of associate
companies, at cost fairly and equitably allocated among them (or as permitted by
[Rule] 90), will be made only pursuant to a declaration filed with the
Commission on Form U-13-1, as specified in the instructions for that form, by
such company or the persons proposing to organize it." Notwithstanding the
foregoing language, the Commission has on at least two recent occasions made
findings under Section 13(b) based on information set forth in an application on
Form U-1, without requiring the formal filing of a Form U-13-1. SEE UNITIL
CORP., 51 SEC Docket 562 (Apr. 24, 1992); CINERGY CORP., 57 SEC Docket 2353
(Oct. 21, 1994). In this Application, Ameren has submitted substantially the
same application information as would have been submitted in a Form U-13-1.

     Accordingly, it is submitted that it is appropriate to find that Ameren
Services will be so organized and shall be so conducted as to meet the
requirements of Section 13(b), and

                                       87
<PAGE>
 
that the filing of a Form U-13-1 is unnecessary, or, alternatively, that this
Application should be deemed to constitute a filing on Form U-13-1 for purposes
of Rule 88.

D.   Other Services

     In addition to the services to be provided by Ameren Services, UE and CIPS
may from time to time or in emergency situations provide one another with
certain services incidental to their utility businesses, such as meter reading,
materials management, transportation, and services of linemen and gas trouble
crews. These services will be provided at cost in accordance with the standards
of the Act and the Commission's rules and regulations thereunder.

Item 4.  Regulatory Approvals

     Set forth below is a summary of the regulatory approvals that Ameren has
obtained or expects to obtain in connection with the Transaction.

A.   Antitrust

     The HSR Act and the rules and regulations thereunder provide that certain
transactions (including the Transaction) may not be consummated until certain
information has been submitted to the DOJ and FTC and specified HSR Act waiting
period requirements have been satisfied. CIPSCO and UE will submit Notification
and Report Forms and all required information to the DOJ and FTC late in 1996 or
early in 1997. For the Transaction to be consummated, the 30-day waiting period
under the HSR Act must expire without adverse action, or any request for
additional information or documentary material, by the FTC or the DOJ.

     The expiration of the HSR Act waiting period does not preclude the
Antitrust Division or the FTC from challenging the Transaction on antitrust
grounds; however, Ameren believes that the Transaction will not violate Federal
antitrust laws. If the Transaction is not consummated within twelve months after
the expiration, or earlier termination of the initial HSR Act waiting period,
CIPSCO and UE would be required to submit new information to the Antitrust
Division and the FTC, and a new HSR Act waiting period would have to expire or
be earlier terminated before the Transaction could be consummated.

B.   Federal Power Act

     Section 203 of the Federal Power Act of 1935, as amended (the "Federal
Power Act"), provides that no public utility shall sell or otherwise dispose of
its jurisdictional facilities or directly or indirectly merge or consolidate
such facilities with those of any other person or acquire any security of any
other public utility, without first having obtained authorization from the FERC.
UE and CIPS filed their joint application for FERC approval of the Transaction
on December 22, 1995. A copy of the petition portion of the application is
submitted with this Application/Declaration as Exhibit D-1.1. If the Commission
determines that it needs to review the exhibits and testimony filed with the

                                      88
<PAGE>
 
FERC petition, the Applicants will promptly provide copies of those materials to
the Commission.

     In conjunction with the application at the FERC regarding the Transaction,
CIPS and UE jointly filed single-system open access tariffs in December 1995 in
compliance with FERC policy. On April 24, 1996, FERC issued orders 888 and 889
related to its "mega-NOPR" rulemaking designed to eliminate market power held by
public utilities through the ownership of transmission systems. Citing a goal of
enhancing competition in the wholesale market for generation sales, FERC has
issued a policy which requires transmission owning public utilities to provide
transmission access and service to others in a manner similar and comparable to
that which the utility has by virtue of transmission ownership. In its Order
888, the FERC adopted pro forma tariffs for use by a utility and its
transmission customers in obtaining transmission service. Order 888 also
provides for the recovery of stranded costs at the wholesale level, based on a
revenues lost calculation, which result from the transition to an open access
business environment.

     Also issued April 24, 1996, Order 889 sets forth the standards of conduct
and information requirements that must be put in place and observed by
transmission owners doing business under the open access rule. These include the
establishment by each utility of an "open access same-time information system",
or OASIS. This system will provide all information, on a real time basis, for
the utility and its customers to apply for and obtain transmission service.
Using the OASIS, the utility must obtain transmission service for its own use in
the same manner its customer will obtain service, thus assuring mitigation of
market power through control of transmission facilities. UE is preparing to
implement the requirements of Order 889. CIPS has applied for a waiver from the
requirements of Order 889 pending consummation of the Transaction.

     On October 16, 1996, the FERC set the Transaction for hearing to determine
the effect of the Transaction on (1) UE's and CIPS' wholesale rates, (2) the
effectiveness of FERC regulation and (3) competition. The exact date of the
hearing has not yet been determined. FERC ordered the presiding administrative
law judge to issue an initial decision no later than April 30, 1997. FERC also
ordered UE and CIPS to submit revised non-price terms and conditions for their
tariffs which conform to the terms of the pro forma tariffs adopted in Order
888. The FERC also set for hearing the rates contained in the UE and CIPS
single-system open access transmission tariffs. These hearings were consolidated
with the hearings on non-tariff issues.

C.   State Public Utility Regulation

     UE has filed an Application for approval of the Transaction pursuant to
Missouri law requesting the MPSC to grant approval, INTER ALIA, of the merger of
UE into Arch Merger and to grant approval for the transfer of the Transferred
Utility Facilities to CIPS and for other related transactions necessary to
effect the merger and reorganization. UE, the MPSC staff, and other parties in
the Missouri proceeding have entered into a joint Stipulation and Agreement (the
"Stipulation") that recommends approval of the Transaction. A copy of the
Stipulation is filed as Exhibit D-2.3. A copy of the petition portion of the
Missouri filing is submitted with this Application/Declaration as Exhibit D-2.1.
The exhibits and testimony

                                      89
<PAGE>
 
supporting the Missouri petition are largely duplicative of the exhibits and
testimony submitted to the FERC with Exhibit D-1.1 hereto. If the Commission
determines that it needs to review the exhibits and testimony filed with the
Missouri petition, the Applicants will promptly provide copies of those
materials to the Commission.

     In Missouri, UE has entered into a Stipulation and Agreement which, among
other matters, addresses the MPSC's jurisdiction following the Mergers. UE has
agreed that the MPSC will retain retail rate authority over costs charged under
agreements with affiliates. In addition, UE has agreed to provide the MPSC
appropriate access to books, records, officers and employees of all Ameren
affiliates to permit exercise of this regulatory authority. A copy of the
Stipulation and Agreement is filed as Exhibit D-2.3. A similar jurisdictional
offer has been made to the ICC.

     On September 25, 1996, the MPSC entered an Order Requesting Additional
Information directing all parties to the Missouri proceeding to submit
additional testimony prior to November 1, 1996 addressing certain issues of
"market power" raised by the MPSC. UE will submit testimony demonstrating, as it
has at FERC, that the Transaction does not raise market power concerns.

     UE, CIPSCO and CIPS have filed a Joint Application for Approval of Merger
and Reorganization pursuant to the Illinois Public Utilities Act ("Illinois
PUA") requesting the ICC to grant approval, INTER ALIA, of their mergers and
reorganization, including the merger of CIPSCO into Ameren, the merger of UE
into Arch Merger and the transfer of the Transferred Utility Facilities to CIPS.
Applicants also are seeking approval of various transactions among affiliated
interests necessary to effect the Mergers and reorganization, the capital
structure of CIPS, discontinuance of service by UE and transfer to CIPS of
various Illinois certificates of convenience and necessity of UE. A copy of the
petition portion of such filing is submitted with this Application/Declaration
as Exhibit D-3.1. The exhibits and testimony supporting the Illinois petition
are largely duplicative of the exhibits and testimony submitted to the FERC with
Exhibit D-1.1 hereto. If the Commission determines that it needs to review the
exhibits and testimony filed with the Illinois petition, the Applicants will
promptly provide copies of these materials to the Commission.

     Section 7-204 of the Illinois PUA requires state approval of a
"reorganization," defined as a change in the ownership of a majority of the
voting stock of a public utility./50/ Under that section, the ICC may not
approve a reorganization that "will adversely affect the utility's ability to
perform its duties under [the Illinois PUA]." The ICC is required to make five
specific findings in this regard./51/ Section 7-204 of the Illinois PUA also
provides that

- ----------------
/50/ 220 ILCS 5/7-204 and 7-204A.

/51/ The ICC must find that:

          (a) the proposed reorganization will not diminish the utility's
     ability to provide adequate, reliable, efficient, safe and least-cost
     public-utility service;

                                                                  (continued...)

                                      90
<PAGE>
 
the ICC, in approving a reorganization, "may impose such terms, conditions or
requirements as, in its judgment, are necessary to protect the interests of the
public utility and its customers."

     The Illinois PUA further empowers the ICC to take certain remedial measures
with regard to the operations of the utility subsidiaries of a public-utility
holding company. Among other things, the ICC may: (1) order a utility subsidiary
to cease the payment of dividends to the holding company whenever the ICC finds
that the capital of the utility would be impaired by the payment of a
dividend;/52/ (2) prohibit a utility from lending money to, and guaranteeing the
obligations of, the holding company or its nonutility subsidiaries;/53/ (3)
exercise controls against the cross-subsidization of nonutility businesses by
utility subsidiaries;/54/ and (4) regulate and prohibit certain transactions
between utility and nonutility subsidiaries./55/ The ICC is also empowered to
maintain continuing oversight over the operations of the holding company system.
The ICC has full access to the books and records of all companies in the holding
company system. Lastly, the PUA requires "stand-alone" treatment of the utility
in rate proceedings./56/

- ----------------
/51/ (...continued)

          (b)  the proposed reorganization will not result in the unjustified
     subsidization of nonutility activities by the utility or its customers;

          (c) costs and facilities are fairly and reasonably allocated between
     utility and nonutility activities in such a manner that the [ICC] may
     identify those costs and facilities which are properly included by the
     utility for ratemaking purposes;

          (d) the proposed reorganization will not significantly impair the
     utility's ability to raise necessary capital on reasonable terms or to
     maintain a reasonable capital structure;

          (e) the utility will remain subject to all applicable laws,
     regulations, rules, decisions and policies governing the regulation of
     Illinois public utilities.

     220 ILCS 5/7-204.

/52/ 220 ILCS 5/7-103.

/53/ 220 ILCS 5/7-102(f) and (h).

/54/ 220 ILCS 5/7-204(b).

/55/ 220 ILCS 5/7-101, 7-102, 7-204 and 7-204A(b).

/56/ 220 ILCS 5/9-230.

                                      91

<PAGE>
 
     The Commission has reviewed the powers of the ICC relating to holding
companies in CIPSCO INC., 47 SEC Docket 174 (Sept. 18, 1990).

D.  Nuclear Regulatory Commission

     UE has filed an application with the NRC requesting approval of an
amendment to the operating license for the Callaway Nuclear Power Plant to
reflect UE's future status as an operating company subsidiary of Ameren. The NRC
docketed the application on March 4, 1996. A copy of the application to the NRC
is submitted with this application as Exhibit D-4.1.

Item 5.  Procedure

     The Commission is respectfully requested to issue and publish not later
than November 15, 1996, the requisite notice under Rule 23 with respect to the
filing of this Application/Declaration, such notice to specify a date not later
than December 6, 1996, by which comments may be entered and a date not later
than December 6, 1996, as the date after which an order of the Commission
granting and permitting this Application/Declaration to become effective may be
entered by the Commission.

     It is submitted that a recommended decision by a hearing or other
responsible officer of the Commission is not needed for approval of the proposed
Transaction. The Division of Investment Management may assist in the preparation
of the Commission's decision. There should be no waiting period between the
issuance of the Commission's order and the date on which it is to become
effective.

Item 6.  Exhibits and Financial Statements
 
A.  Exhibits

     A-1     Restated Articles of Incorporation of Ameren
     A-2     Restated Articles of Incorporation of UE
     A-3     Amended and Restated Articles of Incorporation of CIPSCO
     A-4     Restated Articles of Incorporation of CIPS
     B-1     Merger Agreement
     B-2     CIPSCO Stock Option Agreement
     B-3     UE Stock Option Agreement
     B-4     Form of General Services Agreement among Ameren Services, Ameren,
             UE, CIPS and CIPSCO Investment
     B-5     Description of Ameren Services' accounting and cost allocation
             methods and procedures (To be filed by Amendment)
     B-6     Description of support agreements and guarantees of CIPSCO and
             CIPSCO Investment
     C-1     Registration Statement of Ameren on Form S-4
     C-2     Joint Proxy Statement and Prospectus (included in Exhibit C-1)
     C-3     Ameren's Post-Effective Amendment to Form S-4 Registration
             Statement on Form S-3 (DRIP) (To be filed by Amendment)

 
                                      92


<PAGE>
 
     C-4     Ameren LTIP Form S-8 (To be filed by Amendment)
     C-5     Description of existing savings plans (To be filed by Amendment)
     D-1.1   Joint Application of UE and CIPS before the FERC
     D-1.2   Testimony of Rodney W. Frame before the FERC
     D-1.3   Order of the FERC dated __________, 19__ (To be filed by Amendment)
     D-2.1   Application of UE and Ameren before the MPSC
     D-2.2   MPSC Order dated __________, 19__ (To be filed by Amendment)
     D-2.3   Stipulation and Agreement filed with MPSC dated July 12, 1996
     D-3.1   Joint Application of CIPS, CIPSCO and UE before the ICC
     D-3.2   ICC Order dated __________, 19__ (To be filed by Amendment)
     D-4.1   Application of UE before the NRC
     D-4.2   Order of the NRC dated _______, 19__ (To be filed by Amendment)
     E-1     Map of service areas of CIPS and UE
     E-2     Map showing interconnections of UE and CIPS
     E-3     Map of CIPS service area
     E-4     Map of UE electrical system
     E-5     Map of UE gas system
     E-6     Map of CIPS electric system
     E-7     Map of CIPS gas system
     E-8     UE corporate chart
     E-9     CIPSCO corporate chart
     F-1.1   Preliminary Opinion of Counsel (To be filed by Amendment)
     F-1.2   Final "Past Tense" Opinion of Counsel (To be filed by Amendment)
     F-2.1   Preliminary Opinion of Counsel (Jones, Day, Reavis & Pogue) (To be
             filed by Amendment)
     F-2.2   Final "Past Tense" Opinion of Counsel (Jones, Day, Reavis & Pogue)
             (To be filed by Amendment)
     G-1     Financial Data Schedule
     H-1     Opinion of Goldman Sachs
     H-2     Opinion of Morgan Stanley
     I-1     Annual Report of UE on Form 10-K for the year ended December 31,
             1995
     I-2     Annual Report of CIPSCO and CIPS on Form 10-K for the year ended
             December 31, 1995
     I-3     UE 1995 Annual Report to Shareholders
     I-4     Statement of CIPS on Form U-3A-2 dated February 28, 1996
     I-5     UE Quarterly Reports on Form 10-Q for the quarters ended March 31,
             1996 and June 30, 1996
     I-6     CIPSCO and CIPS Quarterly Reports on Form 10-Q for the quarters
             ended March 31, 1996 and June 30, 1996
     J-1     Proposed Form of Notice
     K-1     Gas Study
     K-2     Table of Estimated Losses of Economies in Prior Decisions on
             Divestiture and Retention of Gas Operations
     K-3     Legal Memorandum Regarding Standards for Retention of Gas
             Properties (To be filed by Amendment)

 
                                      93


<PAGE>
 
B.  Financial Statements
 
 
     FS-1    Ameren Unaudited Pro Forma Combined Condensed Consolidated Balance
             Sheets as of June 30, 1996 (see Quarterly Report of UE on Form 10-Q
             for the quarter ended June 30, 1996 (Exhibit I-5 hereto), at p. 12)
 
     FS-2    Ameren Unaudited Pro Forma Combined Condensed Consolidated
             Statements of Income for the years ended December 31, 1995, 1994
             and 1993 (see Annual Report of UE on Form 10-K for the year ended
             December 31, 1995 (Exhibit I-1 hereto), at pp. 16-18)
 
     FS-3    CIPSCO Consolidated Balance Sheets as of June 30, 1996 (see
             Quarterly Report of CIPSCO on Form 10-Q for the quarter ended June
             30, 1996 (Exhibit I-6 hereto), at p. 5)
 
     FS-4    CIPSCO Consolidated Statements of Income for its last three fiscal
             years (see Annual Report of CIPSCO on Form 10-K for the year ended
             December 31, 1995 (Exhibit I-2 hereto), at p. 41)
 
     FS-5    CIPS Balance Sheets as of June 30, 1996 (see Quarterly Report of
             CIPS on Form 10-Q for the quarter ended June 30, 1996 (Exhibit I-6
             hereto), at p. 8)
 
     FS-6    CIPS Statements of Income for its last three fiscal years (see
             Annual Report of CIPS on Form 10-K for the year ended December 31,
             1995 (Exhibit I-2 hereto), at p. 69)
 
     FS-7    UE Consolidated Balance Sheet as of June 30, 1996 (see Quarterly
             Report of UE on Form 10-Q for the quarter ended June 30, 1996
             (Exhibit I-5 hereto), at p. 2)

     FS-8    UE Consolidated Statement of Income for its last three fiscal years
             (see UE Annual Report to Shareholders for the year ended December
             31, 1995 (Exhibit I-3 hereto), at p. 22)

Item 7. Information as to Environmental Effects

     The Transaction neither involves a "major federal action" nor
"significantly affects the quality of the human environment" as those terms are
used in Section 102(2)(C) of the National Environmental Policy Act, 42 U.S.C.
Sec. 4321 et seq. The only federal actions related to the Transaction pertain to
the Commission's declaration of the effectiveness of Ameren's Registration
Statement on Form S-4, the expiration of the applicable waiting period under the
HSR Act, FERC approval of the application filed by UE and CIPS with the FERC
under the Federal Power Act, and Commission approval of this Application/
Declaration. Consummation of the Transaction will not result in changes in the
operations of UE or CIPS that would have any impact on the environment. No
federal agency is preparing an environmental impact statement with respect to
this matter.


                                      94


<PAGE>
 
                                   SIGNATURE


     Pursuant to the requirements of the Public Utility Holding Company Act of
1935, the undersigned company has duly caused this Application/Declaration to be
signed on its behalf by the undersigned thereunto duly authorized.

Date:  October 31, 1996


                         Ameren Corporation


                         /s/ William E. Jaudes
                         -------------------------------------------------
                         By:  William E. Jaudes
                              Secretary

                                      95

<PAGE>
 
                               INDEX OF EXHIBITS

<TABLE>
<CAPTION>
EXHIBIT                                                            TRANSMISSION
NUMBER                           EXHIBIT                              METHOD
 
<C>        <S>                                                     <C>
A-1        Restated Articles of Incorporation of Ameren            By Reference
           (previously filed as Annex F to the Registration
           Statement of Ameren on Form S-4, Registration
           No. 33-64165 (Exhibit C-1 hereto), filed by Ameren
           on November 13, 1995 and incorporated herein by
           reference)
 
A-2        Restated Articles of Incorporation of UE                By Reference
           (previously filed as Exhibit 3(i) to UE's Annual
           Report on Form 10-K for the year ended
           December 31, 1993 and incorporated herein by
           reference)
 
A-3        Amended and Restated Articles of Incorporation of       By Reference
           CIPSCO (previously filed as Exhibit 3.01 to
           CIPSCO's Annual Report on Form 10-K for the
           year ended December 31, 1990 and incorporated
           herein by reference)
 
A-4        Restated Articles of Incorporation of CIPS              By Reference
           (previously filed as Exhibit 3(b) to CIPS's Quarterly
           Report on Form 10-Q for the quarter ended
           March 31, 1994 and incorporated herein by
           reference)
 
B-1        Merger Agreement by and among UE, CIPSCO,               By Reference
           CIPS, Ameren and Arch Merger (previously filed
           with the Commission as Annex A to the
           Registration Statement of Ameren on Form S-4,
           Registration No. 33-64165 (Exhibit C-1 hereto),
           filed by Ameren on November 13, 1995, and
           incorporated herein by reference)
 
B-2        CIPSCO Stock Option Agreement (previously filed         By Reference
           with the Commission as Annex B to the
           Registration Statement of Ameren on Form S-4,
           Registration No. 33-64165 (Exhibit C-1 hereto),
           filed by Ameren on November 13, 1995, and
           incorporated herein by reference)
</TABLE> 

                                      96

<PAGE>
 
                               INDEX OF EXHIBITS

<TABLE>
<CAPTION>
EXHIBIT                                                            TRANSMISSION
NUMBER                           EXHIBIT                              METHOD
<C>        <S>                                                     <C>
B-3        UE Stock Option Agreement (previously filed with        By Reference
           the Commission as Annex C to the Registration
           Statement of Ameren on Form S-4, Registration
           No. 33-64165 (Exhibit C-1 hereto), filed by Ameren
           on November 13, 1995,  and incorporated herein by
           reference)
 
B-4        Form of General Services Agreement among                Electronic
           Ameren Services, Ameren, UE, CIPS and CIPSCO
           Investment
 
B-5        Description of Ameren Services' accounting and          By Amendment
           cost allocation methods and procedures
 
B-6        Description of support agreements and guarantees        Electronic
           of CIPSCO and CIPSCO Investment
 
C-1        Registration Statement of Ameren on Form S-4            By Reference
           (Registration No. 33-64165 (filed with the
           Commission by Ameren on November 13, 1995,
           and incorporated herein by reference)
 
C-2        Joint Proxy Statement and Prospectus (previously        By Reference
           filed with the Commission as part of Ameren's
           Registration Statement on Form S-4, Registration
           No. 33-64165 (Exhibit C-1 hereto), filed by Ameren
           on November 13, 1995, and incorporated herein by
           reference)
 
C-3        Ameren's Post-Effective Amendment to Form S-4           By Amendment
           Registration Statement on Form S-3 (DRIP)
 
C-4        Ameren LTIP Form S-8                                    By Amendment
 
C-5        Description of existing savings plans                   By Amendment
 
D-1.1      Joint Application of UE and CIPS before the             Electronic
           FERC
 
D-1.2      Testimony of Rodney W. Frame before the FERC            Electronic
</TABLE> 

                                      97

<PAGE>
 
                               INDEX OF EXHIBITS
<TABLE>
<CAPTION>
      
 
EXHIBIT                                                            TRANSMISSION
 NUMBER                           EXHIBIT                            METHOD
 
<C>        <S>                                                     <C>
D-1.3      Order of the FERC dated ___________, 19__               By Amendment
 
D-2.1      Application of UE before the MPSC                       Electronic
 
D-2.2      MPSC Order dated ___________, 19__                      By Amendment
 
D-2.3      Stipulation and Agreement filed with the MPSC           Electronic
           dated July 12, 1996
 
D-3.1      Joint Application of CIPS, CIPSCO and UE before         Electronic
           the ICC
 
D-3.2      ICC Order dated ___________, 19__                       By Amendment
 
D-4.1      Application of UE before the NRC                        Electronic
 
D-4.2      Order of the NRC dated ___________, 19__                By Amendment
 
E-1        Map of service areas of CIPS and UE                     Form SE
 
E-2        Map showing interconnections of UE and CIPS             Form SE
 
E-3        Map of CIPS service area                                Form SE
 
E-4        Map of UE electrical system                             Form SE
 
E-5        Map of UE gas system                                    Form SE
 
E-6        Map of CIPS electric system                             Form SE
 
E-7        Map of CIPS gas system                                  Form SE
 
E-8        UE corporate chart                                      Electronic
 
E-9        CIPSCO corporate chart                                  Electronic
 
F-1.1      Preliminary Opinion of Counsel                          By Amendment
 
F-1.2      Final "Past Tense" Opinion of Counsel                   By Amendment
</TABLE> 

                                       98
<PAGE>
 
                               INDEX OF EXHIBITS
<TABLE>
<CAPTION>

 
EXHIBIT                                                            TRANSMISSION
 NUMBER                           EXHIBIT                            METHOD
 
<C>        <S>                                                     <C>
F-2.1      Preliminary Opinion of Counsel (Jones, Day,             By Amendment
           Reavis & Pogue
 
F-2.2      Final "Past Tense" Opinion of Counsel (Jones, Day,      By Amendment
           Reavis & Pogue)
 
G-1        Financial Data Schedule                                 Electronic
 
H-1        Opinion of Goldman Sachs dated November 13,             By Reference
           1995 (previously filed with the Commission as
           Annex D to the Registration Statement of Ameren
           on Form S-4, Registration No. 33-64165 (Exhibit
           C-1 hereto), filed by Ameren on November 13, 1995,
           and incorporated herein by reference)
 
H-2        Opinion of Morgan Stanley dated November 13,            By Reference
           1995 (previously filed with the Commission as
           Annex E to the Registration Statement of Ameren
           on Form S-4, Registration No. 33-64165 (Exhibit
           C-1 hereto), filed by Ameren on November 13, 1995,
           and incorporated herein by reference)
 
I-1        Annual Report of UE on Form 10-K for the year           By Reference
           ended December 31, 1995 (filed by UE on
           March 28, 1996, File No. 1-2967, and incorporated
           herein by reference)
 
I-2        Annual Report of CIPSCO and CIPS on Form                By Reference
           10-K for the year ended December 31, 1995 (filed by
           CIPSCO and CIPS on March 12, 1996, File
           Nos. 1-10628 and 1-3672, and incorporated herein
           by reference)
 
I-3        UE 1995 Annual Report to Shareholders                   By Reference
           (previously furnished to the Commission and
           incorporated herein by reference)
</TABLE> 

                                       99
<PAGE>
 
                               INDEX OF EXHIBITS
<TABLE>
<CAPTION>

 
EXHIBIT                                                            TRANSMISSION
 NUMBER                           EXHIBIT                            METHOD
 
<C>        <S>                                                     <C>
I-4        Statement of CIPS on Form U-3A-2 dated                  By Reference
           February 28, 1996 (filed with the Commission by
           CIPS on February 29, 1996, File No. 69-140, and
           incorporated herein by reference)
 
I-5        UE Quarterly Reports on Form 10-Q for the               By Reference
           quarters ended March 31, 1996 and June 30, 1996
           (filed with the Commission by UE on May 13, 1996
           and August 13, 1996, respectively, File No. 1-2967,
           and incorporated herein by reference)
 
I-6        CIPSCO and CIPS Quarterly Reports on Form               By Reference
           10-Q for the quarters ended March 31, 1996 and
           June 30, 1996 (filed with the Commission by
           CIPSCO on May 14, 1996 and August 14, 1996,
           respectively, File Nos. 1-10628 (CIPSCO) and
           1-3672 (CIPS), and incorporated herein by
           reference)
 
J-1        Proposed Form of Notice                                 Electronic
 
K-1        Gas Study                                               Electronic
 
K-2        Table of Estimated Losses of Economies in Prior         Electronic
           Decisions on Divestiture and Retention of Gas
           Operations
 
K-3        Legal Memorandum Regarding Standards for                By Amendment
           Retention of Gas Properties
 
FS-1       Ameren Unaudited Pro Forma Combined                     By Reference
           Condensed  Consolidated Balance Sheets as of
           June 30, 1996 (previously filed with the
           Commission at page 12 of UE's Quarterly Report
           on Form 10-Q for the quarter ended June 30, 1996
           (Exhibit I-5 hereto), filed by UE on August 13,
           1996, File No. 1-2967, and incorporated herein by
           reference)
</TABLE> 

                                      100
<PAGE>
 
                               INDEX OF EXHIBITS
<TABLE>
<CAPTION>

 
EXHIBIT                                                            TRANSMISSION
 NUMBER                           EXHIBIT                            METHOD
 
<C>        <S>                                                     <C>
FS-2       Ameren Unaudited Pro Forma Combined                     By Reference
           Condensed Consolidated Statements of Income for
           the years ended December 31, 1995, 1994 and 1993
           (previously filed with the Commission at pages
           16-18 of UE's Annual Report on Form 10-K for the
           year ended December 31, 1995 (Exhibit I-1 hereto),
           filed by UE on March 28, 1996, File No. 1-2967,
           and incorporated herein by reference)
 
FS-3       CIPSCO Consolidated Balance Sheets as of                By Reference
           June 30, 1996 (previously filed with the
           Commission at page 5 of CIPSCO's Quarterly
           Report on Form 10-Q for the quarter ended
           June 30, 1996 (Exhibit I-6 hereto), filed by CIPSCO
           on August 13, 1996, File No. 1-10628, and
           incorporated herein by reference)
 
FS-4       CIPSCO Consolidated Statements of Income for its        By Reference
           last three fiscal years (previously filed with the
           Commission at page 41 of CIPSCO's Annual
           Report on Form 10-K for the year ended
           December 31, 1995 (Exhibit I-2 hereto), filed by
           CIPSCO on March 4, 1996, File No. 1-10628, and
           incorporated herein by reference)
 
FS-5       CIPS Balance Sheets as of June 30, 1996                 By Reference
           (previously filed with the Commission at page 8 of
           CIPS's Quarterly Report on Form 10-Q for the
           quarter ended June 30, 1996 (Exhibit I-6 hereto),
           filed by CIPS on August 13, 1996, File No. 1-3672,
           and incorporated herein by reference)
     
FS-6       CIPS Statements of Income for its last three fiscal     By Reference
           years (previously filed with the Commission at
           page 69 of CIPS's Annual Report on Form 10-K for
           the year ended December 31, 1995 (Exhibit I-2
           hereto), filed by CIPS on March 4, 1996, File No.
           1-3672, and incorporated herein by reference)
</TABLE> 

                                      101
<PAGE>
 
                               INDEX OF EXHIBITS
<TABLE>
<CAPTION>

 
EXHIBIT                                                            TRANSMISSION
 NUMBER                           EXHIBIT                            METHOD
 
<C>        <S>                                                     <C>
FS-7       UE Balance Sheet as of June 30, 1996 (previously        By Reference
           filed with the Commission at page 2 of UE's
           Quarterly Report on Form 10-Q for the quarter
           ended June 30, 1996 (Exhibit I-5 hereto), filed by
           UE on August 13, 1996, File No. 1-2967, and
           incorporated herein by reference)

FS-8       UE Consolidated Statement of Income for its last        By Reference
           three fiscal years (previously filed with the
           Commission at page 22 of UE's Annual Report to
           Shareholders for the year ended December 31,
           1995 (Exhibit I-3 hereto), previously provided to
           the Commission by UE on March 7, 1996, File
           No. 1-2967, and incorporated herein by reference).
</TABLE>

                                      102

<PAGE>
 
                                                                     Exhibit B-4

                          GENERAL SERVICES AGREEMENT
                                    BETWEEN
                            AMEREN SERVICES COMPANY
                                      AND
                  AMEREN CORPORATION, UNION ELECTRIC COMPANY,
                 CENTRAL ILLINOIS PUBLIC SERVICE COMPANY, AND
                           CIPSCO INVESTMENT COMPANY

     THIS AGREEMENT, made and entered into this __ day of _________, 1996, by
and between the following Parties: AMEREN SERVICES COMPANY (hereinafter
sometimes referred to as "Service Company"), a Missouri corporation; and AMEREN
CORPORATION ("Ameren Corporation"), a Missouri Corporation; UNION ELECTRIC
COMPANY ("UE"), a Missouri corporation; CENTRAL ILLINOIS PUBLIC SERVICE COMPANY
("CIPS"), an Illinois corporation, and CIPSCO INVESTMENT COMPANY, ("CIC"), an
Illinois corporation, (hereinafter sometimes referred to collectively as "Client
Companies");

                                  WITNESSETH:

     WHEREAS, Client Companies, including Ameren Corporation, which has filed
for registration under the terms of the Public Utility Holding Company Act of
1935 (the "Act") and its other subsidiaries, desire to enter into this agreement
providing for the performance by Service Company for the Client Companies of
certain services more particularly set forth herein; and

     WHEREAS, Service Company is organized, staffed and equipped and has filed
with the Securities and Exchange Commission ("the SEC") to be a subsidiary
service company under Section 13 of the Public Utilities Holding Company Act of
1935 (the "Act") to render
<PAGE>
 
to Ameren Corporation, and other subsidiaries of Ameren Corporation, certain
services as herein provided; and

     WHEREAS, to maximize efficiency, and to achieve merger related savings, the
Client Companies desire to avail themselves of the advisory, professional,
technical and other services of persons employed or to be retained by Service
Company, and to compensate Service Company appropriately for such services,

     NOW, THEREFORE, in consideration of the premises and of the mutual
agreements herein, the parties hereto agree as follows:

Section 1. Agreement to Furnish Services
- ----------------------------------------

     Service Company agrees to furnish to Client Companies and their
subsidiaries, if any, upon the terms and conditions herein provided, the
services hereinafter referred to and described in Section 2, at such times, for
such period and in such manner as Client Companies may from time to time
request. Service Company will keep itself and its personnel available and
competent to render to Client Companies such services so long as it is
authorized so to do by the appropriate federal and state regulatory agencies.

Section 2.  Services to be Performed
- ------------------------------------
     The services to be provided by Service Company hereunder may, upon request,
include the services as set out in Schedule 1, attached hereto and made a part
hereof.

                                      -2-
<PAGE>
 
     In addition to the Services set out in Schedule 1, Service Company shall
render advice and assistance in connection with such other matters as Client
Companies may request and Service Company determines it is able to perform with
respect to Client Companies' business and operations.

Section 3.  Compensation of Service Company
            -------------------------------

     As compensation for such services rendered to it by Service Company, Client
Companies hereby agree to pay to Service Company the cost of such services,
computed in accordance with applicable rules and regulations (including, but not
limited to, Rules 90 and 91) under the Act and appropriate accounting standards.

     Compensation to be paid by Client Companies shall include direct charges
and Client Companies' fairly allocated pro rata share of certain of Service
Company's costs, determined as set out on Schedule 2, attached hereto and made a
part hereof.

Section 4.  Securities and Exchange Commission Rules
            ----------------------------------------

     It is the intent of the Parties that the determination of the costs as used
in this Agreement shall be consistent with, and in compliance with the rules and
regulations of the SEC, as they now read or hereafter may be modified by the
Commission.

Section 5.  Service Requests
            ----------------

     Services will be performed in accordance with a Service Request system,
consisting of work orders established to capture

                                      -3-
<PAGE>
 
the various types of costs incurred by Service Company. Costs will be charged to
the appropriate service requests, which will then be the basis for the billing
of costs to Client Companies.

Section 6.  Payment
            -------
     Payment shall be by making remittance of the amount billed or by making
appropriate accounting entries on the books of the companies.

     Payment shall be accomplished on a monthly basis, and remittance or
accounting entries shall be completed within 30 days of billing.

Section 7.  Ameren Corporation
            ------------------

     Except as authorized by rule, regulation, or order of the Securities and
Exchange Commission, nothing in this Agreement shall be read to permit Ameren
Corporation, or any person employed by or acting for Ameren Corporation, to
provide services for other Parties, or any companies associated with said
Parties.

Section 8.  Client Companies
            ----------------

     Except as limited by Section 7, nothing in this Agreement shall be read to
prohibit Client Companies or their subsidiaries from furnishing to other Client
Companies or their subsidiaries services herein referred to, under the same
conditions and terms as set out for Service Company.

                                      -4-
<PAGE>
 
Section 9.  Effective Date and Termination
            ------------------------------

     This Agreement is executed subject to the consent and approval of all
applicable regulatory agencies, and if so approved in its entirety, shall become
effective as of the date the merger between Union Electric and CIPSCO is
consummated, and shall remain in effect from said date unless terminated by
mutual agreement or by any Party giving at least sixty days' written notice to
the other Parties prior to the beginning of any calendar year, each Party fully
reserving the right to so terminate the Agreement.

     This Agreement may also be terminated to the extent that performance may
conflict with any rule, regulation or order of the Securities and Exchange
Commission adopted before or after the making of this Agreement.

Section 10.  Assignment
             ----------

     This Agreement and the rights hereunder may not be assigned without the
mutual written consent of all Parties hereto.

                                      -5-
<PAGE>
 
     IN WITNESS WHEREOF, the Parties hereto have caused this Agreement to be
executed and attested by their authorized officers as of the day and year first
above written.

                                AMEREN SERVICES COMPANY

                                By ______________________________

                                Title ___________________________
ATTEST:

By ______________________

Title ___________________

                                AMEREN CORPORATION

                                By ______________________________

                                Title ___________________________
ATTEST:

By ______________________

Title ___________________


                                UNION ELECTRIC COMPANY

                                By ______________________________

                                Title ___________________________
ATTEST:

By ______________________

Title ___________________

                                      -6-
<PAGE>
 
                                 CENTRAL ILLINOIS PUBLIC SERVICE CO.


                                 By _______________________________

                                 Title ____________________________
ATTEST:

By ______________________

Title ___________________


                                 CIPSCO INVESTMENT COMPANY

                                 By ____________________________

                                 Title _________________________
ATTEST:

By ______________________

Title ___________________

                                      -7-
<PAGE>
 
                                AMEREN SERVICES
            DESCRIPTION OF EXPECTED SERVICES BY FUNCTION/DEPARTMENT

FUNCTION/DEPARTMENT               DESCRIPTION
- --------------------------------------------------------------------------------

Building Service                  Provide facility management services for owned
                                  and leased facilities, excluding power plants.
                                  Services include operation and maintenance of
                                  structures, capital improvements, interior
                                  space planning, security and janitorial.

Controller's                      Perform all accounting services necessary to
                                  properly maintain and report on the books and
                                  records of Ameren and its subsidiaries.
                                  Provide investor relations services.

Corporate                         Develop strategies for advertising and
Communications                    marketing efforts, develop employee 
                                  communication programs, coordinate community
                                  relations efforts and develop policies and 
                                  procedures for media relations.

Corporate Planning                Provide rate engineering, interchange
                                  marketing, resource planning and business
                                  analysis services.

Customer Services/                Answer customer inquiries pertaining to
Division Support                  electric/gas service usage and perform credit
                                  activities. Provide technical support relating
                                  to planning, engineering, constructing and
                                  operating the distribution and transmission
                                  systems. Provide technical support and
                                  maintenance of protective relay schemes,
                                  station meter work, system testing and data
                                  acquisition systems.

Economic Development              Provide community and business development
                                  services, as well as natural gas development
                                  services. Analyze community and business
                                  development opportunities.

Energy Supply                     Coordinate the use of the generating,
                                  transmission and interconnection facilities to
                                  provide economical and reliable energy.

Engineering and                   Provide professional services related to
Construction                      engineering studies, design, procurement,
                                  planning, building and management of projects.
                                  Study technology that may reduce costs of
                                  producing, delivering and using electricity.


                                                                    Schedule 1
                                                                   Page 1 of 3
<PAGE>
 
FUNCTION/DEPARTMENT               DESCRIPTION
- --------------------------------------------------------------------------------
Environmental Services            Perform analysis and advocacy of regulatory
& Safety                          and legislative issues in the areas of
                                  environment, health and safety. Communicate
                                  final regulatory requirements to operating
                                  groups. Provide assistance and support and
                                  compliance review in meeting those
                                  requirements. Oversee hazardous substance site
                                  investigation and remediation activities.

Fossil Fuel Procurement           Provide resources necessary to procure fuel
                                  for the fossil power plants and minimize
                                  production costs.

Gas Supply                        Provide gas supply and pipeline capacity
                                  procurement and management services. Develop
                                  policies, procedures and standards which
                                  govern the design, construction and operation
                                  of the gas systems.

General Counsel                   Provide legal advice and services in regards
                                  to legislative activities, regulatory agencies
                                  and security matters. Make regulatory filings,
                                  maintain minutes of the boards of directors,
                                  conduct stockholder meetings and procure
                                  property and casualty insurance bonds.

Human Resources                   Administer and negotiate employee benefits
                                  including pensions, major medical, long-term
                                  disability, life insurance, defined
                                  contribution plans, executive benefit and
                                  flexible spending plans. Provide employment
                                  services, including required regulatory
                                  reporting and maintenance of personnel
                                  records. Provide employee training and
                                  communications services.

Industrial Relations              Negotiate, represent and administer provisions
                                  of labor agreements applicable to unions
                                  representing union employees.

Information Services              Provide for the development and operation of
                                  computer software, telecommunications and
                                  other equipment used to conduct business and
                                  engineering activities. Maintain all billing
                                  records and process customer meter readings.

Internal Audit                    Audit company operations, perform operational
                                  and productivity reviews, review
                                  justifications for capital projects and
                                  perform quality assurance reviews.

Marketing                         Provide marketing services including account
                                  management, program development, market
                                  research and customer energy services.

                                                                     Schedule 1
                                                                    Page 2 of 3
<PAGE>
 
FUNCTION/DEPARTMENT               DESCRIPTION
- --------------------------------------------------------------------------------
Merger Coordination               Monitor programs to achieve savings, merger
                                  costs and position reductions as they relate
                                  to the implementation plans.

Motor Transportation              Provide engineering, support, and mechanical
                                  servicing of vehicles, procurement of vehicles
                                  and safety and training programs.

Purchasing                        Provide procurement of goods and services
                                  other than fuel. Provide materials inventory
                                  management services.

Real Estate                       Acquire necessary land rights and permits
                                  including coordination of site selection.
                                  Maintain existing land rights while permitting
                                  licenses and leases to minimize investment or
                                  costs of holding property.

Stores                            Receive, inspect, store, issue and deliver
                                  materials and supplies throughout all service
                                  areas. Process transformers, tools, scrap
                                  material and hazardous waste.

Tax                               Research and consult on tax issues in
                                  connection with federal, state and local tax
                                  compliance and planning matters, including the
                                  preparation and filing of returns.

Treasurer's                       Provide treasury operation, mailing, financial
                                  planning, investments, and executive payroll
                                  and pension disbursement services.

                                                                    Schedule 1
                                                                   Page 3 of 3
<PAGE>
 
                                AMEREN SERVICES
                    EXPECTED ALLOCATED DIRECT COST FACTORS


       ALLOCATION NUMBER              DESCRIPTION
       -----------------              -----------

              1                       Composite*
              2                       Number of customers
              3                       Sales (kwh and dekatherm)
              4                       Kwh sales
              5                       Number of employees
              6                       Current tax expense
              7                       Peak load (electric)
              8                       Total revenues
              9                       CPU cycles
             10                       Total capitalization
             11                       Dekatherm sales
             12                       Total assets
             13                       Number of vehicles
             14                       Generating capacity
             15                       Gas throughput (includes
                                      transportation)
             16                       Peak load (gas)
             17                       O&M labor
             18                       Construction expenditures
             19                       Electric revenue
             20                       Gas revenue

*Composite consists of the following three factors (equal weight to each
factor):
     Sales (kwh and dekatherm)
     Number of customers
     Number of employees

                                                                     Schedule 2

<PAGE>
 
                                                                     EXHIBIT B-6



                       SUPPORT AGREEMENTS AND GUARANTIES
                        OF CIPSCO AND CIPSCO INVESTMENT


<TABLE>
<CAPTION>


================================================================================
                           CIPSCO SUPPORT AGREEMENTS
- --------------------------------------------------------------------------------
     Date               On Behalf Of             Transaction Pertaining To
- --------------------------------------------------------------------------------
<S>               <C>                       <C>
Sept. 24, 1991    CLC Aircraft Leasing Co.  Lease of one MD-88 aircraft to
                                            Delta Air Lines, Inc.
- --------------------------------------------------------------------------------
Nov. 26, 1991     CIPSCO Leasing Co.        Lease regarding Enron Gas
                                            Processing Co., Bushton, Kansas
                                            processing plant
- --------------------------------------------------------------------------------
Dec. 15, 1991     CLC Leasing Co. A         Lease of certain natural gas
                                            production, treating and
                                            processing equipment to Amoco
                                            Equipment Leasing Co.
- --------------------------------------------------------------------------------
Dec. 1, 1992      CLC Leasing Co. B         Certain sale-leaseback transactions
                                            with Wal-Mart Stores, Inc.
===============================================================================
</TABLE>
<PAGE>
 
<TABLE>
<CAPTION>   
                                                                              EXHIBIT B-6
=========================================================================================
                         CIPSCO INVESTMENT GUARANTIES
- -----------------------------------------------------------------------------------------
<S>               <C>             <C>                    <C>
     Date          On Behalf Of    For The Benefit Of        Transaction Pertaining To
- -----------------------------------------------------------------------------------------
Aug. 26, 1993     CEC-PGE, L.P.   Trustee and Term       Sale of the beneficial interest
                                  Lenders                in a trust which holds title to
                                                         certain combustion turbine units
- -----------------------------------------------------------------------------------------
Aug. 26, 1993     CEC-APL, L.P.   Trustee and Term       Sale of the beneficial interest
                                  Lenders                in a trust which holds title to
                                                         certain simple cycle gas turbine
                                                         units
- -----------------------------------------------------------------------------------------
Aug. 26, 1993     CEC-PSPL, L.P.  Trustee and Term       Sale of the beneficial interest
                                  Lenders                in a trust which holds title to
                                                         certain combustion turbine units
- -----------------------------------------------------------------------------------------
June 10, 1994     CEC-MPS, L.P.   Trustee, Trustor and   Sale of the beneficial interest
                                  Term Lenders           in a trust which holds title to
                                                         certain combustion turbine units
- -----------------------------------------------------------------------------------------
June 10, 1994     CEC-MPS, L.P.   Boatmen's First        Sale of the beneficial interest
                                  National Bank of       in a trust which holds title to
                                  Kansas City            certain combustion turbine units
- -----------------------------------------------------------------------------------------
June 10, 1994     CEC-MPS, L.P.   Trustee, Trustor and   Sale of the beneficial interest
                                  Term Lenders           in a trust which holds title to
                                                         certain combustion turbine units
- -----------------------------------------------------------------------------------------
June 10, 1994     CEC-MPS, L.P.   Boatmen's First        Sale of the beneficial interest
                                  National Bank of St.   in a trust which holds title to
                                  Louis                  certain combustion turbine units
- -----------------------------------------------------------------------------------------
July 11, 1994     CEC-ACE, L.P.   Access Leasing Corp.   Sale of the beneficial interest
                                                         in a trust which holds title to
                                                         certain combustion turbine units
- -----------------------------------------------------------------------------------------
July 11, 1994     CEC-ACE, L.P.   Shawmut Bank           Sale of the beneficial interest
                                  Connecticut, N.A.      in a trust which holds title to
                                                         certain combustion turbine units
- -----------------------------------------------------------------------------------------
Sept. 19, 1994    CIPSCO          Term Lenders           Effingham Development
                  Venture                                Building II, L.L.C.
                  Co.
=========================================================================================
</TABLE>


                                       2

<PAGE>
 
                                                                 Exhibit  D-1.1
     
                          JONES, DAY, REAVIS & POGUE

                              METROPOLITAN SQUARE

                              1450 G STREET, N.W.

                          WASHINGTON, D.C. 20005-2088

ATLANTA     IRVINE                                       TELEPHONE 202-879-3939
BRUSSELS    LONDON                                        TELEX DOMESTIC 892410
CHICAGO     LOS ANGELES                               TELEX INTERNATIONAL 64363
CLEVELAND   NEW YORK                                CABLE ATTORNEY'S WASHINGTON 
COLUMBUS    PARIS                                        FACSIMILE 202-737-2832
DALLAS      PITTSBURGH                                   WRITER'S DIRECT NUMBER
FRANKFURT   RIYADH                                          (202) 879-3687
GENEVA      TAIPEI
HONG KONG   TOKYO

                               December 22, 1995

DELIVER BY HAND
- ---------------

Ms. Lois D. Cashell
Secretary
Federal Energy Regulatory Commission
888 First Street, N.E.
Washington, D.C.  20426

          Re:  Union Electric Company and
               Central Illinois Public Service Company
               Docket Nos. EC96-      and ER96-
               ---------------------------------------

Dear Ms. Cashell:

     Pursuant to Sections 203 and 205 of the Federal Power Act, 16 U.S.C. (S)(S)
824b and 824b (1994), and the Commission's applicable regulations thereunder, 
there is submitted herewith for filing an original and five copies of the Joint 
Application of Merger of Union Electric Company and Central Illinois Public
Service Company for Approval of:  Merger and Disposition of Facilities, Joint 
Dispatch Agreement, System Support Agreement, Recovery of Nuclear 
Decommissioning Costs, Transfer of SubAccount of Nuclear Decommissioning Trust 
and Prospective Regulatory Accounting Treatment.  This filing consists of the 
following:

     .    Volume I:  Transmittal and Application
     .    Volume II: Section 205 Application Agreements
     .    Volume III and IV:  Testimony and Exhibits
     .    Volume V:  Workpapers

     The Applicants are separately serving copies of this application on each of
the state commissions affected, and therefore request a waiver of that part of 
(S) 33.6 that requires that a copy of the application be filed for each state
affected. Also enclosed herewith are six copies of a form of notice suitable for
publication.

     Applicants have made filings with the Illinois Commerce Commission and the 
Missouri Public Service Commission seeking approval of the merger.  Copies of 
such filings are included as part of Exhibit G.  A Form S-4 Registration 
Statement relating to the transaction has been filed with the Securities and 
Exchange Commission ("SEC") and was declared effective.  A copy of the 
Registration Statement is submitted as part of Exhibit G.








<PAGE>
 
                                                      JONES, DAY, REAVIS & POGUE

Ms. Lois D. Cashell
December 22, 1995
Page 2


     Applicants anticipate that other federal regulatory filings will be made in
connection with the proposed transaction.  Promptly after each such filing is 
made, Applicants will supplement this filing with the requisite number of copies
of each such filing.  The pending filing include:

     .    with the SEC, approval of acquisition of securities and utility assets
          and other assets, and registration of the new holding company under
          the Public Utility Holding Companies Act;

     .    with the Nuclear Regulatory Commission, authorization to transfer 
          license for Callaway Nuclear Power Plant;

     .    with the Federal Trade Commission and Department of Justice, a 
          notification and report under the Hart-Scott-Rodino Antitrust Act.

     A separate copy of this transmittal letter and the Joint Application
(without accompanying exhibits and testimony) is enclosed.  Applicants request 
that the Commission file-stamp these documents to signify receipt of this 
filing.

     Applicants respectfully request that the Commission treat the matters 
raised in the Joint Application on a consolidated basis and that the Commission 
reach its determination on authorization of the merger pursuant to Section 203 
as expeditiously as possible.  Applicants believe at this time that the 
Commission should be able to complete its consideration of the Joint Application
without convening an evidentiary hearing.  However, should any issue arise with 
regard to (1) the Section 205 matters, (2) the proposed regulatory accounting 
treatment, or (3) the relief requested as to the disposition and funding of 
Union Electric Company's decommissioning fund, all of which are included in the
Joint Application, and should the Commission deem that hearings are necessary 
with regard to such issue, Applicants request that the Commission approve the 
merger and separately set such issue for hearing at a later date.

                                       Very truly yours,



                                       /s/ Robert S. Waters
                                       -----------------------------------------
                                       Robert S. Waters
                                       Martin V. Kirkwood
                                       Jones, Day, Reavis & Pogue
                                       1450 G Street, N.W.
                                       Washington, D.C.  20005

Enclosures
<PAGE>
 
                           UNITED STATES OF AMERICA

                     FEDERAL ENERGY REGULATORY COMMISSION

Union Electric Company and     )    
Central Illinois Public        )    Docket Nos. EC96-7-000
  Service Company              )            and ER96-679-000

                               NOTICE OF FILING

                              (December __, 1995)

     Take notice that on December 22, 1995, Union Electric Company ("UE") and 
Central Illinois Public Service Company ("CIPS") (collectively, the 
"Applicants") filed a joint application pursuant to Sections 203 and 205 of the 
Federal Power Act and the Federal Energy Regulatory Commission's applicable 
regulations seeking authorization and approval of a strategic alliance between 
the Applicants under a common holding company, Ameren Corporation ("Ameren"), a 
corporation newly incorporated in the State of Missouri.

     Applicants further request findings that the System Support Agreement and 
Joint Dispatch Agreement are just and reasonable and an order allowing them to 
become effective as of completion of the transaction resulting in the holding 
company structure. Additionally, Applicants seek approval of the proposed 
regulatory accounting treatment of a shared savings plan and cost recovery 
mechanism, and certain approvals as to UE's decommissioning fund.

     UE is a combination electric and gas utility operating in Missouri and west
central Illinois. CIPS is a combination electric and gas utility operating in 
Illinois and is a wholly owned subsidiary of CIPSCO, Inc. ("CIPSCO"). Pursuant 
to the Merger Agreement, CIPSCO will be merged into Ameren, with Ameren as the 
surviving entity. CIPS and other non-utility subsidiaries of CIPSCO will, thus, 
become wholly owned subsidiaries of Ameren. UE will be merged with and into Arch
Merger, Inc., a corporation newly incorporated in the State of Missouri as a 
wholly-owned subsidiary of Ameren, with UE as the surviving corporation. UE will
thus become a wholly-owned subsidiary of Ameren. In addition, UE will transfer 
to CIPS certain of its Illinois electric and gas public utility facilities.


<PAGE>
 
     Any person desiring to be heard or to protest said application should file 
a motion to intervene or protest with the Federal Energy Regulatory Commission, 
888 First Street, N.E., Washington, D.C. 20426, in accordance with Rules 211 and
214 of the Commission's Rules of Practice and Procedure (18 CFR Sections 385.211
and 385.214). All such motions or protests should be filed on or before 
__________________, 1996. Protests will be considered by the Commission in 
determining the appropriate action to be taken but will not serve to make 
protestants parties to the proceedings. Any person wishing to become a party 
must file a motion to intervene. Copies of this application are on file with the
Commission and are available for public inspection.



                                                     Lois D. Cashnell, Secretary
<PAGE>
 
                           UNITED STATES OF AMERICA
                                  BEFORE THE 
                     FEDERAL ENERGY REGULATORY COMMISSION



Union Electric Company and     )       Docket Nos. EC96-   -000
Central Illinois Public        )               and ER96-   -000
  Service Company              )  



               JOINT APPLICATION OF UNION ELECTRIC COMPANY AND 
                  CENTRAL ILLINOIS PUBLIC SERVICE COMPANY FOR
              APPROVAL OF:  MERGER AND DISPOSITION OF FACILITIES,
              JOINT DISPATCH AGREEMENT, SYSTEM SUPPORT AGREEMENT,
            RECOVERY OF NUCLEAR DECOMMISSIONING COSTS, TRANSFER OF 
                SUBACCOUNT OF NUCLEAR DECOMMISSIONING TRUST AND
                       PROSPECTIVE ACCOUNTING TREATMENT







William E. Jaudes                      David J. Rosso
  Vice President and General           Christopher W. Flynn
  Counsel                              Thomas D. Brooks
James J. Cook                          Jones, Day, Reavis & Pogue
  Associate General Counsel            77 West Wacker Drive
Joseph H. Raybuck, Attorney            Chicago, Illinois 60601
Union Electric Company
1901 Chouteau Avenue                   Robert S. Waters
St. Louis, Missouri  63166             Martin V. Kirkwood
                                       Jones, Day, Reavis & Pogue
                                       1450 G Street, N.W.
                                       Washington, D.C.  20005

Attorneys for Union Electric           Attorneys for Central Illinois
Company                                Public Service Company





December 22, 1995
<PAGE>
 
                               TABLE OF CONTENTS
                               -----------------

                                                                           Page
                                                                           ----
 
I.      INTRODUCTION.......................................................   1

II.     DESCRIPTION OF THE PROPOSED TRANSACTION............................   3

III.    THE PROPOSED TRANSACTION IS IN THE PUBLIC INTEREST.................  11

        A.   Overview of the regulatory standards..........................  11

        B.   The proposed Transaction satifies the
             Commonwealth Edison standards.................................  21

             1.   The Transaction will reduce operating costs
                  and keep rates lower than they otherwise
                  would be.................................................  21

             2.   Applicants will use the "pooling" method of
                  accounting...............................................  23

             3.   The exchange ratio was negotiated at arm's
                  length and is reasonable.................................  25

             4.   There is no issue of coercion............................  26

             5.   The Transaction will promote competition.................  26

             6.   Both wholesale and retail regulation will
                  remain effective.........................................  29

        C.   The El Paso standard:  UE and CIPS will provide
             comparable transmission service upon consummation
             of the merger.................................................  30

IV.     THE COMMISSION SHOULD APPROVE THE TRANSACTION
        EXPEDITIOUSLY WITHOUT HEARING......................................  31

V.      SYSTEM SUPPORT AGREEMENT...........................................  33

VI.     JOINT DISPATCH AGREEMENT...........................................  36

VII.    PROPOSED REGULATORY ACCOUNTING TREATMENT OF
        SHARED SAVINGS PLAN................................................  40

VIII.   NUCLEAR DECOMMISSIONING TRUST......................................  42

IX.     AUTHORIZATIONS REQUESTED...........................................  44

                                      -i-
<PAGE>
 

 
X.      INFORMATION REQUIRED BY 18 C.F.R. (S) 33.2.........................  46 

        A.   (S) 33.2(a) - Names and addresses of principal
             business offices..............................................  46

             1.   UE.......................................................  47

             2.   CIPS.....................................................  47

        B.   (S) 33.2(b) - Names and addresses of the persons
             authorized to receive notices and communications
             with respect to this Application..............................  47

             1.   UE.......................................................  47

             2.   CIPS.....................................................  47

        C.   (S) 33.2(c) - Designation of the territories 
             served, by counties and states................................  48

             1.   UE.......................................................  48

             2.   CIPS.....................................................  48

             3.   Maps.....................................................  48

        D.   (S) 33.2(d) - Description of jurisdictional 
             transmission facilities.......................................  49

             1.   UE.......................................................  49

             2.   CIPS.....................................................  49

             3.   Maps.....................................................  50

        E.   (S) 33.2(e) - Description of Transaction and
             statement as to consideration.................................  50

        F.   (S) 33.2(f) - Description of facilities involved 
             in the Transaction and of their Current and 
             Proposed Uses.................................................  51

             1.   UE.......................................................  51

             2.   CIPS.....................................................  51

        G.   (S) 33.2(g) - Statement of the cost of the
             jurisdictional facilities involved in the
             Transaction...................................................  52

                                     -ii-
<PAGE>
 
<TABLE> 
<CAPTION> 

<S>     <C>                                                                 <C> 
        H.   (S) 33.2(h) - Statement as to the effect of the
             Transaction upon any contract for the purchase,
             sale or interchange of electric energy........................  52

        I.   (S) 33.2(i) - Statement as to other required
             regulatory approvals..........................................  53

             1.   Federal Energy Regulatory Commission.....................  53

             2.   Securities and Exchange Commission.......................  53

             3.   Missouri Public Service Commission.......................  54

             4.   Illinois Commerce Commission.............................  55

             5.   Nuclear Regulatory Commission............................  55

             6.   Hart-Scott-Rodino........................................  56

             7.   Other....................................................  56

        J.   (S) 33.2(j) - Facts relied upon by the Applicants 
             to show that the Transaction will be consistent 
             with the public interest......................................  56

        K.   (S) 33.2(k) - Description of franchises.......................  57

        L.   (S) 33.2(l) - Form of notice..................................  57

XI.     EXHIBITS REQUIRED BY 18 C.F.R. (S) 33.3............................  57

XII.    CONCLUSION.........................................................  57
</TABLE> 

                                  APPENDICES
                                  ----------

APPENDIX 1

APPENDIX 2

APPENDIX 3

APPENDIX 4

APPENDIX 5



                                     -iii-
<PAGE>
 
                               REQUIRED EXHIBITS
                               -----------------

EXHIBIT A

EXHIBIT B

EXHIBIT C

EXHIBIT D

EXHIBIT E

EXHIBIT F

EXHIBIT G

EXHIBIT H

EXHIBIT I


                    PREPARED DIRECT TESTIMONY AND EXHIBITS
                    --------------------------------------

Gary L. Rainwater

Donald E. Brandt

William A. Koertner

Warner L. Baxter

Maureen A. Borkowski

Gilbert W. Moorman

Rodney Frame

Steven D. Pettit

Thomas J. Flaherty

Douglas W. Kimmelman

Jerre E. Birdsong

Michael C. Williams


                                     -iv-
<PAGE>
 
                           UNITED STATES OF AMERICA

                                  BEFORE THE
                     FEDERAL ENERGY REGULATORY COMMISSION



Union Electric Company and      )
Central Illinois Public         )      Docket No. EC96-________
  Service Company               )                 ER96-________


                JOINT APPLICATION OF UNION ELECTRIC COMPANY AND
                  CENTRAL ILLINOIS PUBLIC SERVICE COMPANY FOR
              APPROVAL OF: MERGER AND DISPOSITION OF FACILITIES,
              JOINT DISPATCH AGREEMENT, SYSTEM SUPPORT AGREEMENT,
            RECOVERY OF NUCLEAR DECOMMISSIONING COSTS, TRANSFER OF
                SUBACCOUNT OF NUCLEAR DECOMMISSIONING TRUST AND
                       PROSPECTIVE ACCOUNTING TREATMENT
            ------------------------------------------------------


I.   INTRODUCTION

          Pursuant to Sections 203 and 205 of the Federal Power Act ("FPA"), 16
U.S.C. (S)(S) 824b and 824d (1994), and the Federal Energy Regulatory
Commission's ("FERC" or "Commission") applicable regulations, Union Electric
Company ("UE") and Central Illinois Public Service Company ("CIPS")
(collectively, the Applicants)/1/ submit this Joint Application ("Application")
respectfully requesting the Commission to authorize and approve, to the extent
they are jurisdictional, the mergers and corporate transactions described below
(referred to, in the aggregate, as the "Transaction") and the other agreements
entered into and actions to be taken in connection with the Transaction, which
are also described below.  Evidence supporting a finding that the Transaction is
consistent with the public interest is submitted

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

/1/  Both UE and CIPS have electric and gas operations.  All references in this
     Joint Application to UE and to CIPS are intended to refer to the respective
     corporate entities, including both the electric and gas operations.
<PAGE>
 
with this Application.  The Applicants request that the Commission issue its
approval of the Transaction expeditiously without conducting an evidentiary
hearing.

          Applicants further request findings that the System Support Agreement
and Joint Dispatch Agreement filed herewith are just and reasonable pursuant to
Section 205 of the FPA and an order allowing them to become effective as of
completion of the Transaction.

          Additionally, pursuant to Section 205 of the FPA, Applicants request
certain approvals with regard to the disposition and funding of the current
Illinois subaccount of UE's decommissioning trust fund for its Callaway nuclear
plant.  In summary, the Applicants request that the Commission approve the
transfer of the current balance in the Illinois subaccount of UE's tax-qualified
decommissioning trust to a FERC subaccount, to the extent such approval is
required by the FPA.  Additionally, the Applicants request that the FERC approve
the amount for decommissioning expenses in the System Support Agreement as being
included in UE's cost-of-service.  Such approval is required to comply with
requirements of the Internal Revenue Service ("IRS") in order to contribute this
amount to a tax-qualified decommissioning trust fund.

                                      -2-
<PAGE>
 
          Finally, Applicants seek approval of the accounting treatment for
regulatory purposes of the shared savings plan and cost recovery mechanism
proposed in this proceeding.

II.  DESCRIPTION OF THE PROPOSED TRANSACTION

          On August 11, 1995, UE and CIPSCO Incorporated, ("CIPSCO"), an
Illinois corporation which owns all of the common stock of CIPS, entered into an
Agreement and Plan of Merger (the "Merger Agreement").  (A copy of the Merger
Agreement is attached to the testimony of Mr. Gary L. Rainwater, UE's Vice
President of Corporate Planning, filed with this Application as Exhibit No. ___
(GLR-2).)

          The Transaction provided for in the Merger Agreement is a strategic
alliance between the Applicants, under a holding company, Ameren Corporation
("Ameren"), pursuant to which:

     (1)  the Illinois operations and facilities (excluding UE's electric
          generating and transmission facilities located in Illinois (the "UE
          Retained Illinois Facilities")) of both UE and CIPS will be owned and
          operated by CIPS; and

     (2)  the Missouri operations and facilities of UE (as well as the UE
          Retained Illinois Facilities) will be owned and operated by UE.

Significant cost savings and efficiencies will be realized as a result of the
Transaction, resulting in further decreases to the Applicants' costs of
rendering utility services, thus providing a

                                      -3-
<PAGE>
 
benefit to customers, shareholders and the local economies which Applicants
serve.

          CIPS is a combination electric and gas utility, operating in a 20,000
square mile region in central and southern Illinois, which serves 317,000 retail
electric customers in 557 communities and 166,000 retail natural gas customers
in 267 communities.  CIPS also provides wholesale electric capacity and energy
to various rural electric cooperative, municipal and investor-owned electric
systems located in Illinois and surrounding states pursuant to a variety of
service agreements.  It is wholly-owned by CIPSCO, which is a holding company
exempt from registration under the Public Utility Holding Company Act ("PUHCA").
By virtue of its ownership of twenty percent (20%) of the voting common stock of
Electric Energy, Inc. ("EEInc."), an Illinois corporation which owns a 1015 MW
generating station at Joppa, Illinois, CIPS is also a holding company, and it
too is exempt from registration under PUHCA.  EEInc. sells substantially all of
its generation to a uranium enrichment plant located near Paducah, Kentucky
(originally operated by the Atomic Energy Commission and operated today by the
United States Enrichment Corporation) and to EEInc.'s utility shareholders.

          UE is a combination electric and gas utility, operating in a 24,000
square mile area in Missouri and west central Illinois, which serves 1,060,000
retail electric customers and 100,000 natural gas customers in Missouri and
64,000 retail

                                      -4-
<PAGE>
 
electric customers and 18,000 natural gas customers in Illinois.  Its Missouri
retail electric service area includes the City of St. Louis and St. Louis
County, as well as all or portions of 65 other counties.  Its Illinois retail
electric service area includes the cities of East St. Louis and Alton.  UE also
serves 16 wholesale electric customers, all of which are located in Missouri.
UE provides gas service to customers in 22 Missouri and 2 Illinois counties.  UE
is also a holding company by virtue of its ownership of forty percent (40%) of
the voting common stock of EEInc. and is exempt from registration under PUHCA.
The forty percent (40%) of EEInc.'s voting common stock not owned by CIPS and UE
is owned by two other non-affiliated utilities.

          Under the proposed Transaction:

          1.   CIPSCO will be merged into Ameren Corporation ("Ameren"), a
               corporation newly incorporated in Missouri, with Ameren as the
               surviving entity.  CIPS and other non-utility subsidiaries of
               CIPSCO will, thus, become wholly-owned subsidiaries of Ameren.
               CIPS will retain ownership of 20 percent of the common stock of
               EEInc.

          2.   UE will be merged into Arch Merger, Inc. ("Arch"), a corporation
               newly incorporated in Missouri as a wholly-owned subsidiary of
               Ameren, with UE as the surviving corporation, thus becoming a
               wholly-owned subsidiary of Ameren.  UE will retain

                                      -5-
<PAGE>
 
               ownership of 40 percent of the common stock of EEInc., together
               with the common stock of its wholly-owned non-utility subsidiary.

          3.   UE will transfer to CIPS all of its electric and gas public
               utility facilities located in Illinois which are necessary or
               useful in the provision of retail electric and gas service to the
               public within UE's Illinois service territory (the "Transferred
               Assets"), except the UE Retained Illinois Facilities.  A list of
               the Transferred Assets is attached as Exhibit No. ___ (GLR-7) to
               Mr. Rainwater's testimony.

          4.   Common stockholders of CIPSCO and UE will receive common stock in
               Ameren in exchange for their existing shares in accordance with
               the exchange ratios set forth in the Merger Agreement.  Debt and
               Preferred shares of CIPS and UE will remain outstanding.

As a result, Ameren will become a registered utility holding company under
PUHCA, owning two operating utility subsidiaries, UE and CIPS.  UE will continue
to operate the same electric and gas facilities in Missouri plus the UE Retained
Illinois Facilities, all of which UE operated before the Transaction.  CIPS,
except as noted above, will conduct all of the combined electric and gas
operations of the Applicants in Illinois.

                                      -6-
<PAGE>
 
Ameren also will directly own CIPSCO Investment Company which manages CIPSCO's
non-utility investments.

          After the merger, UE and CIPS will jointly operate and dispatch their
electric generation and transmission facilities pursuant to a Joint Dispatch
Agreement between the two utilities, a copy of which is attached to the
testimony of Ms. Maureen A. Borkowski, UE's Manager of Energy Services, as
Exhibit No. ___ (MAB-6).  In addition, CIPS will enter into a System Support
Agreement to purchase capacity and energy from UE in order to provide service to
the Illinois customers formerly served by UE which are being transferred to
CIPS.  A copy of the System Support Agreement is attached to Ms. Borkowski's
testimony as Exhibit No. ___ (MAB-8).  Certain administrative functions of both
UE and CIPS will be consolidated and performed either within UE, within CIPS or
within an affiliated service company.  The Applicants have, therefore, developed
a General Services Agreement which is flexible enough to allow for any ultimate
organizational structure.  This General Services Agreement will be filed at the
Securities and Exchange Commission ("SEC").  A copy of the General Services
Agreement is attached, for the Commission's information, to Mr. Rainwater's
testimony as Exhibit No. ___ (GLR-9).

          The Applicants specifically seek an order of the Commission under
Section 203 of the FPA  (i) granting authorization and approval of the
Transaction and for the

                                      -7-
<PAGE>
 
carrying out of the Merger Agreement and (ii) finding that the transaction and
the following elements of the Transaction are in the public interest:

     (1)  the disposition to Ameren, by virtue of the merger, of indirect
          control over the facilities of both UE and CIPS, which the Commission
          may deem to be jurisdictional;

     (2)  the disposition to Ameren, by virtue of the merger, of indirect
          control over a sixty percent (60%) ownership interest in the
          facilities of EEInc., which the Commission may deem to be
          jurisdictional;

     (3)  the disposition to CIPS of direct control over the Transferred Assets,
          to the extent that the Commission may deem any of them to be
          jurisdictional; and

     (4)  the carrying out of the Merger Agreement.

          In addition, Applicants are also filing under Section 205 of the FPA
the Joint Dispatch Agreement and the System Support Agreement, to become
effective upon completion of the Transaction, and seek an order of the
Commission finding that the rates, charges, terms and conditions embodied in the
Joint Dispatch Agreement and the System Support Agreement are just and
reasonable.

          Further, the Applicants seek approval of the proposed accounting
treatment for regulatory purposes of the shared

                                      -8-
<PAGE>
 
savings plan and cost recovery mechanism which they propose in this proceeding.

          Finally, the Applicants request certain approvals with regard to the
disposition and funding of the portion of UE's nuclear decommissioning trust
fund established for its Illinois retail jurisdiction as a result of the
transfer of the retail customers in that jurisdiction to CIPS.

          The Transaction will more than satisfy the requirements of Section 203
because it not only is consistent with, but also will affirmatively benefit, the
public interest by offering opportunities for significant net cost savings which
could not be realized without the synergies provided by the Transaction.
Additionally, the Transaction will extend the Commission's pro-competitive
policies because in connection with this Application for authorization of the
Transaction, Applicants propose that the Commission place into effect, subject
to refund and modification in accordance with the outcome of the Open Access
NOPR, FERC Statutes and Regulations, (P) 32,514 ("Open Access NOPR"), open-
access transmission tariffs which are designed fully to satisfy comparability of
service principles.  UE and CIPS have filed these tariffs concurrently with this
Application in a separate Section 205 proceeding.

          The Applicants request the Commission to issue an order granting
authorization and approval of the Transaction and

                                      -9-
<PAGE>
 
finding that the Transaction and carrying out of the Merger Agreement are
consistent with the public interest.  Further, Applicants request that such
order be issued on an expedited basis, without hearing and without awaiting
resolution of transmission-related issues in the Section 205 proceeding, of any
issues of cost allocation which may arise with regard to the Joint Dispatch
Agreement, the System Support Agreement and the General Services Agreement, or
of any issues in connection with the proposed accounting treatment for
regulatory purposes of the shared savings plan and cost recovery mechanism.
Should any issue arise with regard to the Joint Dispatch Agreement, the System
Support Agreement, or the proposed accounting treatment for regulatory purposes,
and should the Commission deem that hearings are necessary with regard to such
issue, Applicants request that the Commission approve the merger and separately
set such issue for hearing at a later date.  Applicants respectfully submit that
consideration of cost allocation issues with respect to the General Services
Agreement is premature in this docket.  Kansas Power and Light Co. and Kansas
Gas and Electric Co., 54 FERC (P) 61,077 at 61,255.  (1991)  Such issues should
be left to future wholesale rate increase requests, after the mechanism for
consolidation of administrative functions has been determined.

          If this procedural approach is adopted, the Applicants will commit, as
a condition of the Transaction, (1) to proceed with the transmission tariff
Section 205 filing docket after

                                     -10-
<PAGE>
 
approval of the Transaction, and (2) to accept any tariff provisions ordered by
the Commission in a final, non-appealable order in the Section 205 case and
ultimately to conform their transmission tariff provisions to the requirements
set forth in any final, non-appealable order resulting from the Commission's
Open Access NOPR.  The Commission's recent decisions in Cincinnati Gas &
Electric Company and PSI Energy, Inc., 69 FERC (P) 61,005 (1994) and in Midwest
Power Systems, Inc. and Iowa-Illinois Gas and Electric Company, 71 FERC (P)
61,386 (1995) adopted this approach.

III. THE PROPOSED TRANSACTION IS IN THE PUBLIC INTEREST.
     A.   OVERVIEW OF THE REGULATORY STANDARDS

          Merging entities need only show that "the proposed merger is
compatible with the public interest."  Pacific Power & Light Co. v. FPC, 111
F.2d 1014, 1016 (9th Cir. 1940); Northeast Utilities Service Co. v. FERC, 993
F.2d 937, 951 (1st Cir. 1993), quoted in Entergy Services, Inc. and Gulf States
Utilities Co., 65 FERC (P) 61,332, 62,471 (1993).  There is no requirement that
applicants make a showing of "a positive benefit of the merger".  Utah Power &
Light Co., 47 FERC (P) 61,209, at 61,750 (1989), remanded on other grounds,
Environmental Action v. FERC, 939 F.2d 1057 (D.C. Cir. 1991); Entergy Services,
Inc., 62 FERC (P) 61,073, at 61,370 (1993) (footnotes and citations omitted).

          The proposed merger will provide the following benefits: (1) it will
result in synergies that will permit cost

                                     -11-
<PAGE>
 
savings of approximately $590 million during the first 10 years of the merger,
thus enhancing the Applicants' ability to continue to provide reliable service
at reasonable, competitive rates; and (2) transmission customers will be
provided with access to the combined transmission facilities of the Applicants
at a single system rate, resulting in enhanced access among suppliers and
purchasers in wholesale bulk power markets encompassing a substantial geographic
area.  As a result, the Transaction more than satisfies the "consistent with the
public interest" standard of Section 203.

          In general, only two issues have given rise to material factual
disputes requiring evidentiary hearings in Commission merger cases:  the impact
of the merger on (1) costs and rates and (2) competition.  The Applicants have
identified approximately $590 million in potential cost savings resulting from
the merger.  Even if certain items in these savings estimates are disputed, it
is indisputable that significant savings will result from the merger, even after
allowing for recovery of all merger related costs.
  
          The wholesale requirements customers of both UE and CIPS are currently
served pursuant to negotiated contracts.  Neither of the Applicants proposes to
amend those contracts as a result of the Transaction.  Furthermore, since these
contracts were negotiated and agreed to before the Transaction was contemplated,
the Applicants (with the exception noted below)

                                      -12-
<PAGE>
 
will not include any portion of Ameren's merger investment in the calculation of
rates pursuant to those contracts through the remaining term of those contracts.
Any inclusion of merger investment costs in rates during periods after the
expiration of the current terms of these contracts would be negotiated with
those customers, which will be guaranteed the availability of competitive supply
options by the provision of open access transmission tariffs by the Applicants.
The exception noted above relates to three of CIPS' customers served under
formula-based contracts.  The formulas used to determine charges for those
customers would reflect a small portion of the $19 million post-merger costs to
achieve savings, to the extent that those costs are reflected in CIPS'
administrative and general expense or production or transmission O&M expenses.
However, any such post-merger expenses included in those formula rates would be
more than offset by cost reductions due to the merger, which would also flow
through the formula rates. Since merger savings will exceed merger costs in
every year, any customer which, in the future, may choose to be served under
Applicants' filed wholesale tariffs, rather than under negotiated contracts,
would not be detrimentally impacted by the Transaction.
 
          Moreover, Applicants are committing to an "open season" for their
wholesale requirements customers, under which any UE or CIPS wholesale
requirements customer identified in Exhibit No. ___ (GLR-8) or Exhibit No. ___
(GWM-11) could terminate its contract

                                      -13-
<PAGE>
 
by giving a 90-day notice commencing on the day UE or CIPS files for a rate
increase which would impact that customer.  Since UE's wholesale contract rates
are tied to UE's Missouri retail electric rates, this option would be activated
for UE customers when UE files for an electric rate increase with either the
Missouri Public Service Commission or the FERC.  For CIPS customers, the open
season would be activated with a filing by CIPS for an increase in base rates
with the FERC.  The filing Applicant would notify its customers at least 30 days
in advance of any such rate filing and would include in that notice an estimate
of the proposed increase.  Neither UE nor CIPS would make any increase in its
base wholesale rates effective until at least 90 days after any such filing.
This open season guarantee would be effective for the first five years following
consummation of the merger.

          The open season commitment would have to be administered somewhat
differently for the three CIPS formula-based customers, since their rates could
theoretically increase through the formula without CIPS filing for a rate
increase.  Consequently, Applicants would provide those customers with an
additional guarantee.  For those customers, the open season would be activated
not only by the filing at FERC of a base rate increase impacting them, but also
at any time at which the level of administrative and general expense reflected
in their formula rates during the immediately preceding twelve-month period is
 
                                      -14-
<PAGE>
 
higher than the level of administrative and general expense reflected in those
rates during the twelve-month period immediately preceding the Transaction.
Administrative and general expense has been chosen as the base-line for this
additional safeguard because it would include most of the merger savings and
most of that portion of the post-merger costs to achieve savings which will flow
through the formula.
 
          In addition, Applicants are willing to extend, under currently
applicable terms and conditions, the contract of any wholesale customer which
expires prior to the fifth anniversary of the effective date of the Transaction
for a period ending on the fifth anniversary date.  This contract extension
offer will be held open until the effective date of the Transaction.  As a
result of the foregoing commitments, the Transaction cannot have an adverse
impact on rates to wholesale requirements customers, regardless of the level of
savings actually achieved.
  
          The attached testimony of Mr. Rodney Frame, Vice President of National
Economic Research Associates, Inc., demonstrates that the merger will not have
any adverse impact on competition in relevant wholesale bulk power markets.  To
the contrary, bulk power market participants actually will benefit from single
system rates over the combined transmission systems of the Applicants.

                                      -15-
<PAGE>
 
          It is clear, therefore, that neither the issue of impact on costs and
rates, nor that of the impact on competition, requires an evidentiary hearing
with regard to approval of this Transaction.
 
          In Commonwealth Edison Co., 36 FPC 927 (1966), aff'd sub nom. Utility
Users League v. FPC, 394 F.2d 16 (7th Cir. 1968), cert. denied, 393 U.S. 953
(1968), the Commission set forth six factors that it normally will consider in a
Section 203 proceeding: (1) the effect of the merger on operating costs and rate
levels; (2) the accounting treatment for the transaction; (3) the reasonableness
of the purchase price; (4) whether the merger was the result of coercion; (5)
the impact of the merger on competition; and (6) whether the merger impairs
effective state or federal regulation.

          In El Paso Electric Co. and Central and South West Services, 68 FERC
(P) 61,181 (1994), the Commission established an additional standard for its
analysis of whether a merger is in the public interest.  Under El Paso Electric,
an application to merge transmission facilities will not be deemed to be in the
public interest unless the merging companies commit to provide comparable
transmission services, whether or not the merger results in an increase in
market power.
 
          In the recent order in Midwest Power Systems, Inc. and Iowa-Illinois
Gas and Electric Co., ("Midwest"), Commissioners

                                      -16-
<PAGE>
 
Massey and Hoecker in their concurring opinion stated "[t]he time has come for
the Commission to reexamine its merger policy" in view of recent dramatic
changes in the industry and in regulatory policy.  Concurring Opinion of
Commissioners Massey and Hoecker, 71 FERC (P) 61,386 at 62,512 (June 22, 1995).
The concurring Commissioners went on to state:

               As we argue above, a merger's effect on competition is likely to
          dominate Commission merger analysis in the future.  In addition to
          requiring open access as a condition of mergers, the Commission will
          have other competition issues to address, including the importance of
          the concentration of discrete transmission and generation assets, the
          size and market power of the merged company, the extent of horizontal
          or vertical integration, the treatment of claimed benefits achievable
          outside the merger, and any decline in the number of generation or
          transmission alternatives that remain in the wake of the merger.


Id. at 62,513.  The concurring Commissioners elaborated further on their view of
competitive effects in the context of generation and transmission assets:

          The sole competitive effect of mergers may be to increase the
          concentration of generation assets.  In some instances, this increased
          concentration may be significant, but not important from a competitive
          perspective.  In other cases, however, the increase in concentration
          might seriously hinder competition.

Id. at 62,512.

          [W]e suspect a strong case could be made that, insofar as the
          horizontal merger and integration across a region of discrete and open
          transmission facilities is concerned, bigger may be better.

                                      -17-
<PAGE>
 
 Id. at 62,513.

          Applicants view the concurring opinion in Midwest as an attempt to
initiate a policy discussion by listing certain categories of issues of
potential future concern, while leaving the elaboration and exposition of
specific additional criteria for evaluation of proposed mergers, if any are
indeed ultimately adopted, to the future.  While the concurring opinion in
Midwest did not effect a change in the criteria applied by the Commission in
evaluating whether a proposed merger is consistent with the public interest, it
does indicate issues of potential concern to at least two Commissioners.
Consequently, to the extent that Applicants have correctly understood those
concerns, in light of the early level of discussion, they have been addressed in
the evidence provided herewith.

          First, as to the concentration of generation, Mr. Frame testifies that
the merger will expand, not diminish, the bulk power supply options of the vast
majority of the utilities that are interconnected with the Applicants.  The
merger will provide customers with open access to the transmission facilities of
UE and CIPS at a single system postage stamp rate pursuant to the terms and
conditions that the Commission has found are necessary to meet its comparability
requirements.  This expanded access to bulk power markets results from "the
horizontal merger and integration across a region of discrete and open
transmission" systems referred to by the concurring Commissioners.  The benefit

                                      -18-
<PAGE>
 
conferred upon other utility systems by granting access to the combined
transmission system under a single postage stamp rate pursuant to the
combination of UE and CIPS goes beyond the benefit these other systems would
realize by virtue of separate compliance with the Open Access NOPR by UE and
CIPS.  This results from the fact that, due to the combination, these other
systems will have to pay only one transmission rate in order to utilize both
systems.  In addition, evidence is provided indicating that, using traditional
measures of concentration, the combination of CIPS and UE does not present
concerns about market power.
 
          Proper antitrust analysis requires an evaluation of whether a proposed
merger will substantially harm competition by creating or increasing market
power, or facilitating its exercise through collusion, in areas of actual and
potential competitive overlaps between the business activities of the proposed
merger partners.  This requires the proper definition of "relevant markets" in
both their product and geographic dimensions.  Merger analysis should be
concerned only with the likelihood that the specific proposed merger will lessen
competition, and should not attempt to anticipate or shape the future structure
of the market or engage in industrial planning.  It is possible, for example,
that firms A and B should be permitted to merge because they can do so without a
likely adverse effect on competition; but that, at a later point in time,
otherwise identical firms C and D will
 
                                      -19-
<PAGE>
 
not be permitted to merge, because changes in the market (perhaps the merger of
A and B) will cause the merger of C and D to result in adverse effects on
competition.  This is no reason to bar the merger of A and B.  Regulation should
allow the future structure of the market to be determined by the competitive
facts of life.  Intervention is appropriate only with regard to those proposed
mergers which are shown to have a likely adverse effect on competition in a
relevant market.
   
          Mr. Frame has thoroughly analyzed the Transaction in accordance with
these basic antitrust precepts.  He has defined the relevant markets to be
examined and analyzed the impact of the proposed Transaction on these relevant
markets under a framework which is substantially the same as that contained in
the Department of Justice and Federal Trade Commission Horizontal Merger
Guidelines, dated April 2, 1992.  He has found that there is no likelihood of an
adverse effect on competition in any of the relevant markets.  That is the
appropriate scope of an antitrust inquiry and, in this case, that inquiry
establishes that there is no reason to bar this merger.

          Finally, the evidence establishes that both UE and CIPS have been
engaged in cost savings and reengineering programs to reduce costs and increase
efficiencies on their own and that none of those savings and efficiencies have
been claimed as merger-related benefits and used to justify the merger.  Only
cost

                                      -20-
<PAGE>
 
savings and efficiencies realizable solely as a result of the merger are
included in the $590 million of merger savings.

          The issues delineated in the Commonwealth Edison and El Paso Electric
cases, which continue to be applicable to the Commission's review of electric
utility mergers, are discussed more fully below.
 
     B.   THE PROPOSED TRANSACTION SATISFIES THE COMMONWEALTH EDISON STANDARDS.

          1.   THE TRANSACTION WILL REDUCE OPERATING COSTS AND KEEP RATES LOWER
               THAN THEY OTHERWISE WOULD BE.

          The Applicants are submitting the testimony of Mr. Thomas J. Flaherty,
National Partner for Utilities Consulting in the Deloitte & Touche Consulting
Group, a division of Deloitte & Touche LLP, and Mr. Rainwater, which shows that
the Applicants can achieve approximately $590 million in cost savings during the
first 10 years of the merger as a result of consolidating their systems after
accounting for cost reduction measures previously initiated by the Applicants.
After netting out the costs (including transaction costs and merger premium)
that will be incurred to achieve these savings, the total projected net savings
during the first 10 years of the merger are approximately $317 million.
 
          The projected savings and costs to achieve are summarized as follows:

                                      -21-
<PAGE>
 
<TABLE>
<CAPTION> 
                                                       TOTAL SAVINGS
                                                        1997 - 2006
          SAVINGS CATEGORY                              ($ MILLIONS)
          ----------------                             -------------
          <S>                                                <C>
          Corporate and Operations Labor                     $ 195.8
 
          Corporate and Administrative Programs                204.1
 
          Purchasing Economies (Non-fuel)                       68.8
 
          Electric Production                                   84.1
 
          Gas Supply                                            37.1
                                                             -------
 
                         Total Savings                         589.9
 
          Less: Costs to Achieve                               (19.1)
 
                Transaction Costs                              (22.0)
 
                Merger Premium                                (232.0)
                                                             -------
                         Net Savings                         $ 316.8
                                                             =======
 
</TABLE>
 
          As Mr. Flaherty testifies, these projected savings were developed at
the request of the Applicants during the initial phases of their merger
negotiations in order for the Applicants to determine whether the Transaction
made economic sense.  The same savings projections now are being used, reviewed
and refined by the Applicants as part of their internal transition planning for
post-merger operations.  The cost savings projections presented herein thus are
not an ex post facto attempt to justify a decision to merge, but instead have
constituted and continue to constitute an important element of the Applicants'
internal merger planning completely apart from this or any other regulatory
proceeding.

                                      -22-
<PAGE>
 
          Although the exact level of merger savings that will be achieved
cannot be predicted with precision, there can be no question but that
substantial savings will result from the proposed Transaction.  For purposes of
a Section 203 proceeding, no further showing is required, and an evidentiary
hearing on this issue is not necessary.  See Midwest Power, 71 FERC at 62,506-
08; Cincinnati Gas & Electric, 64 FERC at 62, 713-14.
 
          In addition, the Applicants are committing to provide the previously
described open season to protect their wholesale requirements customers from any
rate increases that occur as a result of the Transaction.  In the Midwest Power
proceeding, the Commission accepted such an open season commitment as an
appropriate safeguard, 71 FERC at 62,508.  The Applicants' commitment thus
provides further support for a decision by the Commission that an evidentiary
hearing on the rate effects of the merger is not necessary.

          2.   APPLICANTS WILL USE THE "POOLING" METHOD OF ACCOUNTING.

          As described more fully in the testimony of Mr. Warner L. Baxter, UE's
Assistant Controller, Ameren will account for the merger by using the pooling of
interests method, as provided for in Accounting Principles Board Opinion No. 16
(APB No. 16).  The pooling of interests method accounts for the merger as a
uniting, or "pooling", of ownership interests accomplished by the exchange of
voting securities.  This method is used where the merger

                                      -23-
<PAGE>
 
satisfies the criteria set forth in APB No. 16. As discussed in the testimony of
Mr. Baxter, the proposed merger meets those criteria. This is a reasonable
accounting treatment to use for a merger and does not require any consideration
at hearing./2/

          Additionally, the Applicants request the Commission to find that the
shared savings plan described in the testimony of Mr. Rainwater is consistent
with appropriate regulatory accounting treatment./3/ The Applicants do not
propose any wholesale rate increases with this Application and do not anticipate
the need for any rate increases attributable to the merger. The shared savings
plan merely establishes a regulatory accounting treatment that will enable
shareholders and customers equitably to share merger savings, net of the merger
premium and other transaction related costs, described in the testimony of
Messrs. Rainwater and Kimmelman. The Applicants recognize that approval of the
shared savings plan as an acceptable regulatory accounting approach will not
constitute a ratemaking order issued under FPA sections 205 and 206.

- ---------------------    
/2/  See Utah Power & Light Company, Pacific Corp., and PC/UP&L Merging
Corporation, 41 FERC (P) 61,283 at 61,755; Southern California Edison Company
and San Diego Gas and Electric Company, 47 FERC (P) 61,196 at 61,675;  Midwest
Power, 71 FERC at 62,509.

/3/  To the extent necessary, this request is made pursuant to FPA Section 301,
as well as FPA Section 203.

                                      -24-
<PAGE>
 
          3.   THE EXCHANGE RATIO WAS NEGOTIATED AT ARM'S LENGTH AND IS
               REASONABLE.

          The Merger Agreement (attached to Mr. Rainwater's testimony as Exhibit
No. __ (GLR-2)) was negotiated at arm's length between UE and CIPSCO and was
approved by the respective Boards of Directors of each company. On December 20,
1995, the shareholders of each of the companies also approved the Merger
Agreement. Under that agreement, neither company can be said to be "purchasing"
the other for an established price. Instead, there will be a strategic alliance
whereby the holders of common stock in UE and CIPSCO will each exchange their
shares of stock for shares in Ameren. The rate of exchange for common stock --
1.00 share of UE stock and 1.03 shares of CIPSCO stock for each share of Ameren
stock -- was negotiated at arm's length by the merging companies and approved by
their respective Boards of Directors.

          The Commission has held that the arm's length nature of negotiations
leading to a merger obviates the need for a hearing on the reasonableness of the
purchase price. Midwest Power, 71 FERC at 62,510. Further, the proposed merger,
including the proposed rate of exchange for common stock, must be approved by a
vote of UE's and CIPSCO's shareholders. As a consequence, the Commission need
not "consider the effect of the purchase price on shareholders. The federal and
state securities laws provide a mechanism to address these concerns." Southern
Cal. Edison Co.,

                                      -25-
<PAGE>
 
47 FERC (P) 61,196, at 61,673 n.20 (1989). See also Midwest Power, 71 FERC at
62,510.

          4.   THERE IS NO ISSUE OF COERCION.

          As established in the testimony of Mr. Donald E. Brandt, UE's Senior
Vice President-Finance and Corporate Services, neither company coerced the other
into the Transaction. Each company has low production costs and entered into the
Transaction for long term strategic reasons. The Transaction was entered into
freely by, and in the interest of, each company. The fact that the Transaction
must be approved by the shareholders of each company further ensures that the
Transaction is at arm's length, free of undue influence by either side.

          5.   THE TRANSACTION WILL PROMOTE COMPETITION.

          Included with this Application is the testimony of Mr. Rodney Frame,
an independent economist, which provides an evaluation of the impact of the
proposed merger on competition. Mr. Frame's testimony follows the analytic
framework established by the Commission in prior merger cases for the
consideration of market power issues.

          Mr. Frame's analysis identifies the relevant product and geographic
markets and considers the impact of the merger on competition in these markets.
Among other things, he concludes that the comparable service transmission
tariffs filed by the Applicants and the availability of service over the
combined

                                      -26-
<PAGE>
 
facilities of both systems at a single system rate expands the supply
alternatives in affected wholesale markets.

          In analyzing short term capacity markets, Mr. Frame analyzed the
uncommitted capacity of UE, CIPS, UE and CIPS combined, and all other electric
systems directly interconnected with UE and/or CIPS for the years 1995 and 1998.
His analysis showed that UE and CIPS control only relatively small shares (far
less than the 20% threshold which the FERC has utilized in the past to denote
situations that obviously present no concern as to market power) of the
uncommitted generating capacity held by all directly interconnected utilities.
Thus, he concludes that the combination of UE and CIPS will not create an
opportunity to exercise seller market power in short term capacity markets. He
then examined how the merger affects concentration of uncommitted capacity in
first tier markets (defined as markets centered on each utility directly
interconnected with CIPS or UE and including each utility which is either
directly connected to, or "one wheel" away from that utility). Once again, he
finds that the combination of UE and CIPS produces shares of uncommitted
capacity that are below threshold levels which might indicate concern about the
possible exercise of market power in short term capacity markets.

          With respect to long term capacity markets, Mr. Frame concludes that
the Transaction will not create or enhance control over sites for new generating
facilities or other key factor

                                      -27-
<PAGE>
 
inputs to new resource additions, such as fuel supply or fuel transportation.
Consequently, Mr. Frame concludes that Ameren will have no market power in long
term capacity markets.

          Mr. Frame also concludes that the combination of UE and CIPS does not
create or enhance market power in non-firm energy markets. This is based in part
upon the market expanding effects associated with Applicants' combined (single
system) transmission tariff. It is also based upon specific analyses which Mr.
Frame has performed. Mr. Frame examined the combined firms' share of generating
capacity in the first tier markets discussed above and analyzed actual data on
non-firm and substitutable energy or capacity and energy sales. His analyses
indicate that the combined UE and CIPS share of total generating capability in
first tier markets is below threshold levels which could suggest possible
concerns about market power. The analyses also indicate that the combined UE and
CIPS non-firm energy transactions do not result in market shares and increases
in the Herfindahl-Hirschmann Index (HHI) which indicate that the combination of
UE and CIPS is likely to have any substantially adverse impact on competition in
the non-firm energy market.

          Mr. Frame also concludes that the Transaction will not adversely
affect retail competition. His testimony addresses franchise, yardstick,
locational (or customer) and fringe area competition, as well as interfuel
competition between gas and electricity at the retail level.

                                      -28-
<PAGE>
 
          6.  BOTH WHOLESALE AND RETAIL REGULATION WILL REMAIN EFFECTIVE.

          Upon completion of the proposed Transaction, the Missouri Public
Service Commission will continue to have jurisdiction over the retail electric
and gas rates of UE, which will operate substantially the same facilities as it
previously operated in Missouri. Similarly, the Illinois Commerce Commission
will continue to have jurisdiction over CIPS' electric and gas rates. CIPS will
operate substantially the same facilities as were previously operated in
Illinois by CIPS and UE, with the exception of the UE Retained Illinois
Facilities.

          Ameren will be regulated as a registered holding company under PUHCA
and thus many of the transactions of Ameren and its subsidiaries, other than
electric and gas sales, will require prior approval of the SEC.

          Finally, both state utility commissions will have the authority to
review various aspects of the proposed Transaction. See Section X(I)(3) and (4).
As the Commission stated in Entergy, "the interests of [the] states vis-a-vis
state regulation can be protected by those state commissions" in the context of
their review of the proposed merger. 62 FERC at p. 61,374; See also Kansas Power
& Light Co., 54 FERC (P) 61,077 at p. 61,255 (1991).

                                     -29-
<PAGE>
 
     C.   THE EL PASO STANDARD: UE AND CIPS WILL PROVIDE COMPARABLE TRANSMISSION
          SERVICE UPON CONSUMMATION OF THE MERGER.

          Transmission access has been viewed as a critical issue in merger
cases by the Commission since the PacifiCorp/UP&L merger. More recently, the
Commission has clarified the terms and conditions of transmission access which
are required for a merger to meet the "consistent with the public interest"
test. In 1994, the Commission announced in the El Paso Electric case that all
merging utilities would have to provide "comparable service" after the merger.
The Commission did not specify in El Paso Electric what it considered to be
"comparable service". However, the recently issued Open Access Notice of
Proposed Rulemaking ("Open Access NOPR") in Docket No. RM95-8-000 goes into
great detail on this subject and even provides model pro forma tariffs that the
Commission has stated contain the terms and conditions necessary to provide
comparable service. FERC Statutes and Regulations (P) 32,514.

          Furthermore, in its Order on Rehearing and Clarification and Providing
Further Guidance on Processing Open Access Filings, Docket No. ER93-540-003
(June 28, 1995) ("Further Guidance Order"), the Commission stated that unless
merger applicants file tariffs consistent in all material respects with the pro
forma tariffs, they may have to wait until the conclusion of any hearing
regarding their tariffs before the merger is approved. 71 FERC (P) 61,393 at
62,541.

                                     -30-
<PAGE>
 
          As discussed above, the Applicants simultaneously have filed under
Section 205 of the FPA Open Access NOPR pro forma tariffs, to become effective
when the proposed merger is consummated. These tariffs are discussed in more
detail in the testimony of Ms. Borkowski and copies of the tariffs, with any
changes from the Commission's pro forma tariffs indicated, are attached as
Exhibits Nos. ____ and ____ (MAB-10 and 11) to her testimony. As Ms. Borkowski
explains in her testimony, the filing by Applicants is consistent in all
material respects with the pro forma tariffs, with only minor changes having
been made.

          Ms. Borkowski also explains that the Applicants commit to revise their
tariff filing to reflect any changes imposed by the Commission in its final rule
in Docket No. RM95-8-000.

          As a consequence, there is no material transmission access issue
involved with the Transaction. The Applicants have followed the Commission's
guidelines in the Open Access NOPR and the Further Guidance Order, and they are
in full compliance with El Paso Electric.

IV.  THE COMMISSION SHOULD APPROVE THE TRANSACTION EXPEDITIOUSLY WITHOUT HEARING

          The Commission has held repeatedly that Section 203 does not require
the holding of an evidentiary hearing. Instead, an evidentiary hearing is
necessary only when there are material issues of disputed fact that must be
resolved to determine whether the proposed merger is consistent with the public

                                     -31-
<PAGE>
 
interest. As a consequence, in the recent Delmarva and Midwest Power cases, the
Commission approved the proposed mergers without conducting any evidentiary
hearing. Furthermore, as the Commission has recognized in previous merger cases,
expediting the approval of a proposed merger is appropriate to permit the prompt
realization of merger-related synergies and benefits and to address the
commercial realities and time pressures presented by a proposed merger. See
Kansas Power and Light, 54 FERC at p. 61,252; Northeast Utilities Service
Company, 58 FERC (P) 61,070, at 61,202 (1992); Entergy, 62 FERC at p. 61,368.

          As demonstrated above and in the attached testimony, there can be no
dispute that the Transaction will produce substantial cost savings, will expand
wholesale market opportunities for the majority of regional market participants
and, therefore, will be consistent with the public interest. Consequently, it is
appropriate for the Commission to expedite its review of Applicants' proposed
merger and approve the merger without an evidentiary hearing so that UE's and
CIPS' retail and wholesale customers and prospective users of their transmission
systems may begin to enjoy the economic and competitive benefits of the merger
as soon as possible. As indicated above, issues which may arise with regard to
the matters discussed in Sections V through VIII below are separable and, should
hearings on such issues be required, may be scheduled for hearing subsequent to
the granting of the Section 203 authorization.

                                     -32-
<PAGE>
 
 V.  SYSTEM SUPPORT AGREEMENT

          The Illinois territory currently served by UE is generally known as
the St. Louis Metro-East area. The UE Illinois electric service territory
comprises a geographic area of about 330 square miles, with about 64,000
customers in 22 communities. As discussed in the testimony of Mr. Rainwater,
CIPS is acquiring UE's electric and gas distribution systems, including electric
lines and substations, as well as all associated general plant-in-service in
Illinois. CIPS is not taking ownership of any UE electric generating or
transmission facilities operating in Illinois.

          In order to provide service to the transferred area, UE and CIPS have
agreed to enter into a System Support Agreement for the provision of power and
energy to CIPS. That agreement is premised on certain principles which are
intended to maintain the low cost structure now in place for the customers in
UE's Illinois service area, avoid the reallocation of UE's costs from Illinois
to Missouri, and minimize the need to advance the plans for adding supply-side
resources by CIPS. CIPS will be responsible for meeting power requirements in
excess of those provided by the System Support Agreement for all future load
growth in the transferred area.

          The Applicants are asking the Commission to recognize the System
Support Agreement as a just and reasonable rate providing an appropriate cost
allocation mechanism for the

                                     -33-
<PAGE>
 
continued recovery of UE generation and transmission costs from the transferred
Illinois electric customers. Applicants seek to avoid cost shifting between
state jurisdictions with consequent rate impacts caused by the merger structure
and not by changes in underlying costs. CIPS and UE are attempting to maintain
the status quo, with the generation and transmission system planned and
installed to serve these customers continuing to serve them, and the cost of
rendering that service continuing to be recovered from them. The transfer of the
customers is designed to promote administrative convenience, resulting in
economies for the companies and the Illinois Commerce Commission. Without the
System Support Agreement, the transfer of the Illinois customers would not be
possible, and the resulting economies would be lost.

          UE's generation and transmission system was planned and constructed as
an integrated system designed to serve all of UE's customers, including those
customers being transferred to CIPS. Consequently, cost allocations have
historically been made between jurisdictions to reflect UE's generation and
transmission costs in serving each jurisdiction, resulting in revenue levels
that provide for cost recovery. The agreement preserves the recovery of costs
for UE's generation and transmission systems that will continue to serve
Illinois customers after the merger is effective.

          In the System Support Agreement, CIPS agrees to a long-term assignment
of capacity and energy from UE's generation,

                                     -34-
<PAGE>
 
which is equivalent to the generation currently committed to serving UE's
Illinois customers. CIPS will be responsible for providing capacity and energy
in excess of the contract amounts specified in the support agreement. As UE's
existing generation is retired, the contracted level of capacity and energy
support to CIPS from the UE generation will proportionately decrease. The
contract capacity and energy also may be adjusted downward if CIPS experiences
the loss of a significant customer load in the transferred area. This aspect of
the agreement will help balance the system support capacity provided by UE with
customer load.

          The System Support Agreement has a fixed cost component as well as a
variable cost, or energy, component. The formula will reflect actual costs as
they change from time to time. The energy cost component of the System Support
Agreement provides for the assignment of average variable costs from UE to CIPS.
CIPS' remaining customers will be isolated from the impact of the costs
allocated under the System Support Agreement, since that agreement is designed
to allocate UE generation and transmission costs solely to the former UE
Illinois service area customers.

          In short, the System Support Agreement is central to the Transaction
because it is necessary in order to effect the transfer of UE's Illinois
properties to CIPS, and is designed to ensure that the transfer will not impact
the rates of either UE's existing Missouri or Illinois customers.

                                     -35-
<PAGE>
 
VI.  JOINT DISPATCH AGREEMENT

          UE and CIPS will operate their combined generation and transmission
facilities as a single control area. The control area will interface directly
with 28 other utilities to buy and sell capacity and energy economically, using
the generation and transmission resources of the combined system. All load
requirements will be combined and all resources will be controlled by a single
Automatic Generation Control. By committing and dispatching resources on a
single system basis, the total production costs will be lower than if the two
companies' resources were committed and dispatched separately. As load on the
system increases, it will be served instantaneously by the next available,
lowest cost source of generation, regardless of whether that generation is owned
by UE or CIPS, or, in the case of a purchase, regardless of whether the source
is connected to UE or CIPS. This change in operation should enhance interchange
purchase and sales activities. The fact that the single control area will be
able to interface directly with 28 interconnected utilities will allow UE and
CIPS to optimize sale and purchase opportunities. The result should be reduced
costs for UE and CIPS, because each company will have improved access to a
greater number of competitive sources of supply, thus increasing the potential
for cost-reducing purchases and sales. In particular, a combined operation will
eliminate the need for a transmission charge or adder that UE or CIPS would
otherwise have had to pay to effect a purchase or sale across the

                                     -36-
<PAGE>
 
other's system. Today, the existence of such charges may preclude consummation
of certain transactions, because the incremental cost of a lower cost generating
unit plus the transmission adder may be higher than the incremental cost of a
somewhat higher cost generating unit which does not require the transmission
adder.

          There are four categories of costs that can be affected by coordinated
operation. These are: (1) fixed costs associated with generation; (2) variable
production costs; (3) interchange power costs; and (4) transmission costs.

          Each company will continue to own and operate the generating units
that it presently owns. Each company will be responsible for the fixed costs
associated with the generation it owns, except as otherwise provided in the
System Support Agreement discussed above.

          The variable production cost category includes fuel costs, variable
operating and maintenance costs and emission allowances costs. Interchange power
costs include the costs for any purchased capacity or energy required in the
operation of the control area whether it be for emergency, capacity or economy
purposes. They include both demand charges and energy charges incurred under
FERC approved wholesale contracts. Variable production costs and interchange
power costs will be allocated pursuant to the Joint Dispatch Agreement. The
basic principles

                                     -37-
<PAGE>
 
reflected in the agreement with respect to allocation of interchange power costs
and variable production costs are as follows:

          1.   Each company will be allocated its own lowest-cost generation to
               serve its own load requirements.
          2.   Variable production costs associated with generating units that
               are designated to run out of order due to operating constraints
               will be assigned to the owning company, unless the load or
               operating requirement of the other company is specifically
               identified as causing the constraints.
          3.   An after-the-fact analysis will be performed to assign the
               generating and purchase power resources to each company's load
               requirements and to the combined systems' off-system sales.
          4.   The after-the-fact analysis will determine what generation was
               required from one company to serve the other's native load. The
               incremental production costs associated with this generation will
               be assigned to the receiving party.
          5.   The after-the-fact analysis will also show which company's load
               was served by a purchase. Energy costs associated with that
               purchase will be assigned to that company. Energy purchases that

                                     -38-
<PAGE>
 
               are economic for both companies will be shared on a load ratio
               basis, except that energy from purchases agreed to before the
               merger will be made available first to the contracting company.
               Demand charges for purchases agreed to before the merger will be
               borne solely by the contracting company. Demand charges for
               purchases agreed to after the merger will be assigned on a load
               ratio basis.
          6.   Revenue in the amount of the incremental costs of generating
               energy to provide sales will be credited to the company that
               supplied the energy. Net energy revenues from sales will be
               allocated based upon a monthly ratio of net outputs.
          7.   Demand charges for sales that were agreed to before the merger
               will be allocated to the contracting company. Demand charges for
               sales that are agreed to after the merger will be allocated on
               the basis of a ratio of surplus reserves.
          8.   The parties contemplate that the costs associated with
               transmission facilities will be borne by the company owning such
               facilities. To the extent that the companies construct jointly-
               owned facilities in the future, it is expected that costs will be
               borne in proportion to the agreed

                                      -39-
<PAGE>
 
               upon respective ownership interests. The revenues from the open
               access transmission tariff for the combined system will be shared
               between UE and CIPS by initially compensating each company for
               any costs of direct assignment or distribution facilities
               included in the transmission service revenues. Each company will
               then be reimbursed for any incremental expenses incurred to
               provide the transmission service. Any remaining revenue will be
               shared in proportion to each company's transmission plant
               investment included in the tariff rates.

VII.   PROPOSED REGULATORY ACCOUNTING TREATMENT OF SHARED SAVINGS
      PLAN
          Applicants propose that their stockholders be allowed an opportunity
to recover the investment which was required to achieve the merger savings, as
well as being allowed to share in net merger savings. Ameren Corporation's
shareholders will incur a merger premium of $232 million, based on the effective
cost above market that Ameren will pay to acquire the stock of CIPSCO, and will
incur other transaction costs of $41 million in order to complete the merger.
That represents a $273 million investment which will return $590 million in
savings over a 10-year period, an additional $970 million in the second 10-year
period, and almost $1.4 billion in the third 10-year period. Unless this
investment is recognized as a cost in any plan for the sharing of

                                      -40-
<PAGE>
 
savings, shareholders will have little chance to be made whole from the savings
generated by this investment. Applicants propose to recover Ameren's investment
in all jurisdictions which they serve through a shared savings plan, which will
allow Ameren's stockholders and customers to share equally in the net merger
savings. The shared savings plan will allow stockholders to recover their direct
merger investment, the $273 million referred to above, over a 10-year period.
The plan will amortize that investment in proportion to expected savings in each
of the 10 years to ensure there are net savings in each year. It will then split
the net savings equally between shareholders and customers. The plan is fully
described in the testimony of Mr. Rainwater. Mr. Rainwater indicates how
Ameren's merger investment will be amortized, how a portion of projected net
savings will be allocated to cost of service, and how an equal portion of net
savings will be made available to reduce customers' cost of service.

          Applicants request the Commission to find that the shared savings plan
and cost recovery mechanism is consistent with appropriate regulatory accounting
treatment, permitting recovery of Ameren's investment based on the proposed
shared savings plan. The plan provides shareholders the opportunity to recover
the amortized merger costs over the next 10 years. The cost reductions created
by the merger should make achievement of that objective possible without the
need for a rate increase.

                                      -41-
<PAGE>
 
 VIII.    NUCLEAR DECOMMISSIONING TRUST

          As previously indicated, the Applicants are requesting certain
approvals with regard to the disposition and funding of that portion of UE's
nuclear decommissioning trust fund established for its Illinois jurisdiction as
a result of the transfer of the retail customers in that jurisdiction to CIPS.
UE's rates in Illinois, as well as its wholesale rates and its rates in
Missouri, recognize nuclear decommissioning expenses. The amounts reflected in
cost-of-service are deposited quarterly in an external tax-qualified trust. The
amount collected by UE annually from Illinois ratepayers is $355,000, and, as of
June 30, 1995, a total of $5.7 million is held in the Illinois subaccount of the
external tax-qualified trust. This annual funding level for Illinois has not
changed since 1985 when set in UE's last Illinois rate case.

          As discussed above, once the Merger is consummated, UE will no longer
have an Illinois retail electric jurisdiction. Since the IRS requires that
contributions into a tax-qualified trust be included in the contributing
jurisdiction's cost-of-service, UE will no longer be able to place the annual
contribution from Illinois customers into the tax-qualified trust.

          As also discussed above, UE and CIPS propose to enter into a System
Support Agreement. That agreement provides for the payment by CIPS to UE of
nuclear decommissioning expenses which

                                      -42-
<PAGE>
 
would be contributed to the tax-qualified trust quarterly in a FERC subaccount,
because the System Support Agreement is FERC jurisdictional.

          As addressed in the testimony of Mr. Michael C. Williams, UE's Manager
of Nuclear Services, Exhibit No. ___ (MCW-1), the current (1995) estimate for
the costs to decommission Callaway is $433 million. UE's Treasurer, Mr. Jerre E.
Birdsong, explains that the System Support Agreement sets forth a rate which
includes a component of $425,000 annually for nuclear decommissioning costs.
(Exhibit No. ___ (JEB-1)) As Mr. Birdsong indicates in his testimony, $425,000
is a reasonable component for such costs based on UE's estimate for the costs to
decommission Callaway. Applicants request that the Commission authorize this
amount as being included in UE's cost-of-service. Such authorization is required
by the IRS in order for UE to place contributions into the tax-qualified trust.

          Applicants request that, if required by the Federal Power Act, the
Commission authorize transfer of the balance of funds in the Illinois
subaccount, as of the date of the Merger, to a FERC subaccount. With this
change, the oversight of the obligation to fund nuclear decommissioning as to
UE's current Illinois electric jurisdiction will be transferred from the
Illinois Commerce Commission to the FERC. As discussed in the testimony of Mr.
Williams and Mr. Birdsong, such a transfer of funds, and such authorization that
the decommissioning expenses

                                      -43-
<PAGE>
 
are included in UE's cost-of-service, are reasonable and in the public interest.

IX.       AUTHORIZATIONS REQUESTED

          The Applicants are requesting this Commission's approval for several
aspects of the proposed Transaction.  The Applicants request that these filings
be considered on a timely basis so that the Transaction can be consummated as
soon as possible during 1996.

          First, the Applicants are requesting in this Application that the
Commission approve that part of the Transaction involving the merger of CIPSCO
into Ameren, with Ameren as the surviving corporation, which will result in CIPS
and other non-utility subsidiaries of CIPSCO becoming wholly-owned subsidiaries
of Ameren.

          Second, the Applicants are requesting approval in this Application of
the merger of Arch into UE, with UE as the surviving corporation, which will
result in UE becoming a wholly-owned subsidiary of Ameren.

          Third, the Applicants are requesting approval in this Application, to
the extent necessary, of the transactions by which UE will transfer title to the
Transferred Assets to Ameren, which will in turn transfer title to the
Transferred Assets to CIPS.

                                      -44-
<PAGE>
 
          Fourth, the Applicants recognize that the Commission must approve,
under Section 205 of the FPA, the System Support Agreement pursuant to which UE
will sell capacity and energy to CIPS.  Consequently, the Applicants are filing
that agreement for the Commission's approval under Section 205 of the FPA with
this Application and request that the Commission issue an order finding the
System Support Agreement to be just and reasonable and permitting it to become
effective upon completion of the Transaction.

          Fifth, the Applicants recognize that the Commission must approve,
under Section 205 of the FPA, the Joint Dispatch Agreement pursuant to which UE
and CIPS will dispatch their generating resources on an integrated basis.
Consequently, the Applicants are filing that agreement for the Commission's
approval under Section 205 of the FPA with this Application and request that the
Commission issue an order finding the Joint Dispatch Agreement to be just and
reasonable and permitting it to become effective upon completion of the
Transaction.

          Sixth, the Applicants request that the Commission find that the shared
savings plan and cost recovery mechanism, fully described in Mr. Rainwater's
testimony, is consistent with appropriate regulatory accounting treatment.

          Seventh, concurrently with this Application, the Applicants also are
filing open-access comparable service

                                      -45-
<PAGE>
 
transmission tariffs under Section 205 of the FPA.  These consist of a Network
Integration Service Tariff and a Point-to-Point Transmission Tariff.  These
tariffs, which will become effective upon the consummation of the Transaction,
essentially duplicate the pro forma tariffs that were included by the Commission
in the Open Access NOPR.

          Eighth, with regard to decommissioning, the Applicants are requesting
the following: (1) that the Commission authorize the transfer of the current
balance in the Illinois subaccount of UE's decommissioning trust fund to a FERC
subaccount, if such approval is required by the Federal Power Act; and (2) that
the Commission approve the amount of $425,000 in the System Support Agreement as
being included in UE's cost-of-service to comply with IRS requirements regarding
tax-qualified decommissioning funds.


X.   INFORMATION REQUIRED BY 18 C.F.R. (S) 33.2

          In support of this Application, the Applicants submit the following
information required by Section 33.2 of the Commission's regulations, 18 C.F.R.
(S) 33.2.

     A.   (S) 33.2(A) - NAMES AND ADDRESSES OF PRINCIPAL BUSINESS OFFICES

          The following are the names and principal business offices of the
Applicants:

                                      -46-
<PAGE>
 
          1.   UE
               --

               Union Electric Company
               1901 Chouteau Avenue
               P.O. Box 149
               St. Louis, MO  63166


          2.   CIPS
               ----

               Central Illinois Public Service Company
               607 East Adams Street
               Springfield, IL  62739


     B.   (S) 33.2(B) - NAMES AND ADDRESSES OF THE PERSONS AUTHORIZED TO RECEIVE
          NOTICES AND COMMUNICATIONS WITH RESPECT TO THIS APPLICATION

          The following persons are authorized to receive notices and
communications with respect to this Application:

          1.   UE
               --

               Mr. Joseph H. Raybuck
               Attorney
               Union Electric Company
               P.O. Box 149 (MC 1310)
               St. Louis, MO  63166

               Mr. James J. Cook
               Assoc. General Counsel
               Union Electric Company
               P.O. Box 149 (MC 1310)
               St. Louis, MO  63166


          2.   CIPS
               ----

               Mr. William A. Koertner
               Vice President, Finance
               Central Illinois Public Service Company
               607 East Adams Street
               Springfield, IL  62739

                                      -47-
<PAGE>
 
               Mr. Robert J. Mill
               Manager, Rate Department
               Central Illinois Public Service Company
               607 East Adams Street
               Springfield, IL  62739

               Mr. David J. Rosso
               Mr. Christopher W. Flynn
               Jones, Day, Reavis & Pogue
               77 West Wacker Drive
               Chicago, IL  60601

               Mr. Robert Waters
               Jones, Day, Reavis & Pogue
               Metropolitan Square
               1450 G Street, N.W.
               Washington, D.C.  20005



          The Applicants also request that the foregoing persons be placed on
the official service list for this proceeding.

     C.   (S) 33.2(C) - DESIGNATION OF THE TERRITORIES SERVED, BY COUNTIES AND
          STATES

          1.   UE
               --
          The counties and states, or portions thereof, which are served by UE
are listed in Appendix 2.

          2.   CIPS
               ----
          The counties and states, or portions thereof, which are served by CIPS
are listed in Appendix 3.

          3.   MAPS
               ----
          The retail electric service territories of the Applicants are shown on
the maps contained in Exhibit I.

                                      -48-
<PAGE>
 
     D.   (S) 33.2(D) - DESCRIPTION OF JURISDICTIONAL TRANSMISSION FACILITIES

          1.   UE
               --
          As of December 31, 1994, UE owned and operated, or partially owned,
approximately 3,300 miles of transmission lines/4/ and has interconnection
arrangements with 15 investor-owned utilities and with Associated Electric
Cooperative, Inc., the City of Columbia, the Southwestern Power Administration
and the Tennessee Valley Authority.  It is a member of the Mid-America
Interconnected Network ("MAIN").  UE has the following Missouri wholesale
utility customers: California, Centralia, Citizens Electric, Farmington,
Fredericktown, Hannibal, Jackson, Kahoka, Kirkwood, Linneus, Marceline,
Owensville, Perry, Rolla, St. James and Sho-Me Power Corporation.  A further
description of the facilities owned or operated by UE for transmission of
electric energy in interstate commerce or the sale of electric energy at
wholesale in interstate commerce is found in the testimony of Ms. Borkowski.


          2.   CIPS
               ----
          On December 31, 1994, CIPS owned and operated, or partially owned,
approximately 4787 miles of 34.5 kV or above (4028 miles of 69 kV and above)
transmission lines.  It has interconnection arrangements with 10 investor-owned
utilities and with the Tennessee Valley Authority, Wabash Valley Power

_____________________
/4/  69 kV and above.


                                      -49-
<PAGE>
 
Association, City Water, Light & Power of Springfield, Illinois, Illinois
Municipal Electric Agency, Indiana Municipal Power Agency, Soyland Electric
Cooperative and Southern Illinois Power Cooperative.  It is a member of MAIN.
CIPS provides full requirements service in Illinois to Norris Electric
Cooperative, City of Newton, Village of Greenup and Mt. Carmel Public Utility
Company.  It also sells system participation power to Soyland Power Cooperative
and the Illinois Municipal Electric Agency in Illinois, as well as to Wabash
Valley Power Association in Indiana.  A further description of the facilities
owned or operated by CIPS for transmission of electric energy in interstate
commerce or the sale of electric energy at wholesale in interstate commerce is
found in the testimony of Mr. Gilbert W. Moorman, Vice President, Power Supply
for CIPS.

          3.   MAPS
               ----
          The location of the transmission systems, interconnections and
generating plants of the Applicants are shown on maps contained in Exhibit I.

     E.   (S) 33.2(E) - DESCRIPTION OF TRANSACTION AND STATEMENT AS TO
          CONSIDERATION

          A copy of the Merger Agreement is included with this Application as
Exhibit No. ___ (GLR-2) to Mr. Rainwater's testimony and the Transaction and the
consideration for the merger are described in Section II of this Application, in
the Merger Agreement and in the testimony of Mr. Rainwater.
                     
                                      -50-
<PAGE>
 
 F.  (S) 33.2(F) - DESCRIPTION OF FACILITIES INVOLVED IN THE TRANSACTION AND OF
     THEIR CURRENT AND PROPOSED USES

          A description of each Applicant's utility property involved in this
combination is provided below in summary form.  The proposed Transaction
includes all of the operating property of the Applicants, including all
franchises, permits and rights owned by the Applicants.  UE and CIPS will use
such property in the same general manner as it was used immediately prior to the
merger.

          1.   UE
               --
          UE owns six steam electric plants (one nuclear plant and five fossil
fuel plants), two hydroelectric generating plants, one pumped-storage hydro
plant, nine combustion turbines, and six diesel generators, which have an
estimated total net generating capacity of 7,825 megawatts.  As of December 31,
1994, UE owned approximately 3,300 circuit miles of electric transmission lines.
UE's extensive transmission system allows UE to transact directly with 18 other
utilities.

          UE, through its gas division, owns gas distribution and peak shaving
facilities to serve approximately 118,200 customers in 77 Missouri and 4
Illinois communities.

          2.   CIPS
               ----
          CIPS' generating capacity is approximately 2,834 MW.  The source of
this capacity is the ownership of 11 coal-fired units (2,663 MW), and 1 oil-
fired steam unit and 1 oil-fired
                
                                      -51-
<PAGE>
 
diesel generator (171 MW).  As of December 31, 1994, CIPS owned approximately
4787 circuit miles of electric transmission lines.  CIPS' extensive transmission
system allows CIPS to transact directly with 18 other utilities.  A further
description of the generation, transmission and distribution facilities of CIPS
is found in the testimony of Mr. Moorman.

          CIPS owns gas distribution and storage facilities and a propane-air
peak shaving facility to serve approximately 166,000 customers in 267 Illinois
communities.

     G.   (S) 33.2(G) - STATEMENT OF THE COST OF THE JURISDICTIONAL FACILITIES
          INVOLVED IN THE TRANSACTION

          As described above, the Transaction will involve all of the
jurisdictional facilities of UE and CIPS.  The jurisdictional facilities of the
Applicants are, and after the merger will continue to be, accounted for pursuant
to the Commission's Uniform System of Accounts.  Original cost is the basis for
the valuation of UE's and CIPS' utility plant in service.  Statements of the
jurisdictional transmission plant in service and the cost thereof are included
as Exhibit No. ___ (MAB-4) to Ms. Borkowski's testimony, and Exhibit No. ___
(GWM-6) to Mr. Moorman's testimony.

     H.   (S) 33.2(H) - STATEMENT AS TO THE EFFECT OF THE TRANSACTION UPON ANY
          CONTRACT FOR THE PURCHASE, SALE OR INTERCHANGE OF ELECTRIC ENERGY

          As discussed in Sections II and III(c), UE and CIPS are submitting
open-access transmission tariffs which will expand the
                               
                                      -52-
<PAGE>
 
rights of third parties to transmission access on their combined transmission
systems.  UE and CIPS will continue to be bound by their respective contractual
commitments and the Transaction, therefore, with one exception, will have no
effect on the Applicants' existing contracts.  The exception relates to the Ill-
Mo Pool Agreement among UE, CIPS and Illinois Power Company, which will have to
be amended to reflect changes in delivery points resulting from the transfer of
the Transferred Assets.  For those existing agreements with wholesale
requirements customers that permit UE or CIPS to file for a rate increase under
Section 205 of the FPA, UE and CIPS, respectively, will provide the open season
opportunities as explained in the testimony of Mr. Rainwater if a rate increase
is sought.

     I.   (S) 33.2(I) - STATEMENT AS TO OTHER REQUIRED REGULATORY APPROVALS

          The following are the regulatory approvals that may or will be
necessary.

          1.   FEDERAL ENERGY REGULATORY COMMISSION
               ------------------------------------
          Applicants are seeking the approvals which are the subject of this
proceeding, as well as approval of the Section 205 transmission rate filing.

          2.   SECURITIES AND EXCHANGE COMMISSION
               ----------------------------------

          The Applicants are required to make filings with the SEC for (a)
registration of the exchange of Ameren common stock for the common stock of
CIPSCO and Union Electric pursuant to an
                  
                                      -53-
<PAGE>
 
S-4 Registration Statement, under the Securities Act of 1933, and (b) approval
of acquisition of securities and utility assets and other interests and other
matters under Sections 6, 7, 9, 10, and 11 of PUHCA, approval of arrangements
for provision of services among affiliates, and registration of Ameren as a
holding company under Section 5 of PUHCA.

          The S-4 Registration Statement has been declared effective by the SEC
and a copy thereof is submitted with this Application as a part of Exhibit G.
The filing under PUHCA will be made after shareholder approval is obtained.
Shareholder meetings for both UE and CIPSCO are scheduled for December 20, 1995.

          3.   MISSOURI PUBLIC SERVICE COMMISSION

          UE has filed an Application for Approval of the Merger pursuant to
Missouri law requesting the Missouri Public Service Commission to grant
approval, inter alia, of the merger of UE into Arch and to grant approval for
the transfer of the Transferred Assets to CIPS and for other related
transactions necessary to effect the merger and reorganization.  A copy of the
Petition portion of such filing is submitted with this Application as part of
Exhibit G.  Applicants have not included the exhibits and testimony supporting
the Missouri Petition as they are largely duplicative of the exhibits and
testimony submitted herewith.  If the Commission determines that it needs to
review the exhibits and testimony filed with the Missouri

                                      -54-
<PAGE>
 
Petition, the Applicants will promptly provide copies of those materials to the
Commission.

          4.   ILLINOIS COMMERCE COMMISSION

          UE and CIPS have filed a Joint Application for Approval of Merger and
Reorganization pursuant to the Public Utilities Act of Illinois requesting the
ICC to grant approval, inter alia, of their merger and reorganization, including
the merger of CIPSCO into Ameren, the merger of UE into Arch and the transfer of
the Transferred Assets to CIPS.  Applicants also are seeking approval of various
transactions among affiliated interests necessary to effect the merger and
reorganization, the capital structure of CIPS, discontinuance of service by UE
and transfer to CIPS of various Illinois certificates of convenience and
necessity of UE.  A copy of the Petition portion of such filing is submitted
with this Application as part of Exhibit G.  Applicants have not included the
exhibits and testimony supporting the Illinois Petition as they are largely
duplicative of the exhibits and testimony submitted herewith.  If the Commission
determines that it needs to review the exhibits and testimony filed with the
Illinois Petition, the Applicants will promptly provide copies of those
materials to the Commission.

          5.   NUCLEAR REGULATORY COMMISSION

          UE will file an application with the Nuclear Regulatory Commission
(NRC) requesting authorization for transfer, directly or indirectly, through
transfer of control, of the operating

                                      -55-
<PAGE>
 
license, and all rights thereunder, for the Callaway Nuclear Power Plant.  A
copy of this filing with the NRC will be submitted to the Commission immediately
after such filing is made.

          6.   HART-SCOTT-RODINO

          The Applicants will file a Notification and Report Form for Certain
Mergers and Acquisitions with the Federal Trade Commission and the Antitrust
Division of the United States Department of Justice under the Hart-Scott-Rodino
Antitrust Improvements Act of 1976, as amended.  A copy of such filing will be
submitted to the Commission immediately after such filing is made.

          7.   OTHER

          Applicants may file other applications for, or request, certain other
consents or authorizations by federal, state or municipal agencies in connection
with the issuance of securities, system operations and franchises.

     J.   (S) 33.2(J) - FACTS RELIED UPON BY THE APPLICANTS TO SHOW THAT THE
          TRANSACTION WILL BE CONSISTENT WITH THE PUBLIC INTEREST

          See Section III of this Application, the required exhibits and the
evidence in support filed herewith, which Applicants submit contain information
sufficient for the Commission to approve the proposed merger as being consistent
with the public interest.

                                      -56-
<PAGE>
 
     K.   (S) 33.2(K) - DESCRIPTION OF FRANCHISES
          A list of the municipal franchises of UE is set forth in Appendix 4.
The municipal franchises of CIPS are listed in Appendix 5.

     L.   (S) 33.2(L) - FORM OF NOTICE
          A form of notice suitable for publication in the Federal Register is
attached hereto as Appendix 6.

XI.    EXHIBITS REQUIRED BY 18 C.F.R. (S) 33.3

          Exhibits A through I which are required to be filed with this Joint
Application pursuant to 18 C.F.R. (S) 33.3 are included herewith.

XII. CONCLUSION

          For the above-stated reasons, the Applicants respectfully request
approval of the Transaction and specifically request that the Commission, on an
expedited basis and without hearing, (1) find that the Transaction is consistent
with the public interest pursuant to Section 203 of the FPA; and (2) grant the
Applicants authorization to do all things necessary and proper within the
Commission's jurisdiction to effectuate the Transaction and dispose of the
jurisdictional facilities as requested in this Joint Application.

          In addition, the Applicants respectfully request that the System
Support Agreement and Joint Dispatch Agreement be found just and reasonable
pursuant to Section 205 and be

                                      -57-
<PAGE>
 
permitted to become effective upon consummation of the Transaction, and,
further, that the proposed regulatory accounting treatment for regulatory
purposes of the shared savings plan and cost recovery mechanism also be
approved. Finally, Applicants request that the Commission grant the relief
requested as to the disposition and funding of UE's nuclear decommissioning
fund.

                                    Respectfully submitted,

/s/ R.S. Waters for William E. Jaudes      /s/ R.S. Waters for David J. Rosso
- -------------------------------------      ----------------------------------
William E. Jaudes                          David J. Rosso
  Vice President and General               Christopher W. Flynn
  Counsel                                  Thomas D. Brooks
James J. Cook                              Jones, Day, Reavis & Pogue
  Associate General Counsel                77 West Wacker Drive
Joseph H. Raybuck, Attorney                Chicago, Illinois 60601
Union Electric Company
1901 Chouteau Avenue                       Robert Waters
St. Louis, Missouri  63166                 Martin V. Kirkwood
                                           Jones, Day, Reavis & Pogue
                                           1450 G Street, N.W.
                                           Washington, D.C. 20005

Attorneys for Union Electric               Attorneys for Central Illinois Public
                                           Service Company

December 22, 1995

                                      -58-

<PAGE>
 
                                                                   Exhibit D-1.2

                                             



                           UNITED STATES OF AMERICA

                                  BEFORE THE
                     FEDERAL ENERGY REGULATORY COMMISSION



Union Electric Company and           )
Central Illinois Public              )                    Docket Nos. EC96-7-000
Service Company                      )                                




                           PREPARED DIRECT TESTIMONY

                                      OF

                                 RODNEY FRAME








                                 Washington, DC
                               December 22, 1995
<PAGE>
 
                               TABLE OF CONTENTS


I.    INTRODUCTION.............................................................1

II.   PURPOSE OF TESTIMONY AND SUMMARY OF CONCLUSIONS..........................5

III.  APPROACH TO ANALYZING COMPETITIVE EFFECTS ASSOCIATED WITH 
      ELECTRIC UTILITY MERGERS................................................11

IV.   TRANSMISSION............................................................19

        A.  OPEN ACCESS TRANSMISSION TARIFFS..................................19

        B.  INTERCONNECTIONS..................................................24

        C.  TRANSMISSION OVERLAPS.............................................41

V.    BULK POWER..............................................................45

        A.  SHORT TERM CAPACITY...............................................49

        B.  LONG TERM CAPACITY................................................70

        C.  NONFIRM ENERGY....................................................76

        D.  OTHER CONSIDERATIONS..............................................90

VI.   RETAIL COMPETITION ISSUES...............................................92

VII.  VERTICAL ISSUES.........................................................97
<PAGE>
 
                                                         Exhibit No. ____(RWF-1)
                                                                   Page 1 of 100


                           UNITED STATES OF AMERICA

                                  BEFORE THE
                     FEDERAL ENERGY REGULATORY COMMISSION



     Union Electric Company                      )
                                                         Docket No. EC96-___-000
     Central Illinois Public Service Company     )


                           Prepared Direct Testimony
                                        
                                      of

                                 RODNEY FRAME


I.   INTRODUCTION

Q.   PLEASE STATE YOUR NAME AND POSITION.

A.   My name is Rodney Frame.  I am a Vice President of National Economic
     Research Associates, Inc. (NERA).

Q.   WHAT IS YOUR BUSINESS ADDRESS?

A.   My business address is 1800 M Street, N.W., Washington, D.C. 20036.

Q.   WHAT IS NERA?
 
<PAGE>
 
                                                          Exhibit No. ___(RWF-1)
                                                                   Page 2 of 100


A.   NERA is a consulting firm founded in 1961 to provide business, government
     and the legal profession with research and analysis in microeconomics--a
     field that encompasses price and cost determination, the behavior of firms
     and consumers, and the impact of competition and regulation upon the
     efficiency of firms, markets and the economy as a whole.  We have nine
     offices in the U.S. and a staff of approximately 230.  We have offices
     overseas in London and Madrid.

Q.   WHAT IS YOUR FORMAL EDUCATIONAL BACKGROUND?
A.   I received a Bachelors degree in Business Administration from George
     Washington University in 1970.  Also at George Washington I completed all
     requirements for my Ph.D. in Economics with the exception of my thesis.  My
     graduate studies at George Washington were funded under the National
     Science Foundation Graduate Traineeship program.

Q.   PLEASE DESCRIBE YOUR PROFESSIONAL EXPERIENCE.
A.   I have been employed at NERA since 1984, originally as a Senior Consultant
     and since 1990 as a Vice President.  Most of my work has involved
     consulting with electric utility clients on various competition related
     matters, including retail competition, bulk power markets and competition,
     transmission access and pricing, partial requirements ratemaking,
     contractual terms for wholesale service, mergers and contracting for
     generation supplies from nonutility generators.
<PAGE>
 
                                                           Exhibit No.___(RWF-1)
                                                                   Page 3 of 100


     From 1976 to 1984 I was a Senior Economist at Transcomm, Inc. (Transcomm),
     in Falls Church, Virginia.  There I directed a number of projects
     concerning market structure and ratemaking in the telecommunications
     industry, competition among electric utilities and postal ratemaking.
     Prior to my affiliation with Transcomm, I worked as an independent economic
     consultant advising clients mostly on telecommunications issues.

     I have testified in federal and local courts and before state and federal
     regulatory commissions.  I submitted testimony to the Commerce Commission
     of New Zealand on the competitive implications of alternative transmission
     pricing proposals.  I provided an affidavit and supporting competitive
     analyses in Federal Energy Regulatory Commission (FERC or Commission)
     Docket No. EC92-5-000 concerning the merger of Iowa Power, Inc. and Iowa
     Public Service Company.  I submitted prepared direct and rebuttal testimony
     in FERC Docket Nos. ER93-465-000 and ER93-922-000 concerning competitive
     issues raised by Florida Power & Light Company's (FP&L) proposed
     interchange contract modifications, wholesale electric service tariff
     revisions and "open access" transmission tariffs.  In the same proceeding I
     also submitted separate pieces of testimony relating to "comparability" of
     transmission services, the appropriateness of crediting transmission rates
     to account for customer-owned transmission facilities, and the implications
     of FERC's Notice of Proposed Rulemaking (NOPR) on FP&L's proposed
     transmission tariffs.  In FERC Docket No. ER93-498-000, I submitted
     prepared answering and prepared rebuttal testimony concerning allegations
     that a contractual agreement entered into by Central Louisiana Electric
     Company constituted predatory pricing.  In FERC Docket No. EC95-4-


     
<PAGE>
 
                                                           Exhibit No.___(RWF-1)
                                                                   Page 4 of 100
     
     000, I submitted prepared direct testimony concerning competitive issues
     raised by the proposed merger of Midwest Power Systems, Inc. (MPSI) and
     Iowa-Illinois Gas and Electric Company (IIGE). In Docket Nos. EC94-7-000
     and ER94-898-000, I submitted prepared rebuttal testimony concerning issues
     of comparability associated with open access transmission tariffs submitted
     by El Paso Electric Company and Central and South West Services, Inc. In
     Docket No. ER93-540-000, I submitted prepared rebuttal testimony concerning
     pricing and comparability issues associated with American Electric Power
     Company's (AEP) proposed open access transmission tariff. In Docket No.
     ER95-1686-000, I submitted prepared direct testimony addressing market
     power issues associated with an application by Northeast Utilities Service
     Company for market-based pricing authority. On numerous occasions I have
     spoken before electric industry groups on transmission access and pricing
     and other competition related matters.

     A copy of my resume is attached as Exhibit ___(RWF-2).

Q.   BY WHOM HAVE YOU BEEN RETAINED IN THIS PROCEEDING?
A.   I have been retained by Union Electric Company (UE) and Central Illinois
     Public Service Company (CIPS)/1/, collectively "Applicants."


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

/1/  Abbreviations are used throughout this testimony and accompanying exhibits
     and workpapers to identify utilities, regional reliability councils and
     other entities.  A list of all such abbreviations is contained in
     Exhibit___(RWF-3).

<PAGE>
 
                                                           Exhibit No.___(RWF-1)
                                                                   Page 5 of 100

II.  PURPOSE OF TESTIMONY AND SUMMARY OF CONCLUSIONS


Q.   WHAT IS THE PURPOSE OF YOUR PREPARED DIRECT TESTIMONY?
A.   UE and CIPSCO, Incorporated (CIPSCO), the holding company for CIPS, have
     proposed to merge.  After the merger UE and CIPS each will be a wholly
     owned subsidiary of Ameren Corporation (Ameren), a new, registered public
     utility holding company.  Details concerning this transaction are provided
     in the testimony of Mr. Gary L. Rainwater.  For convenience, throughout my
     testimony I will refer to this transaction as the merger of UE and CIPS,
     even though I recognize that UE and CIPS will continue to operate as
     separate, albeit commonly controlled corporate entities after the
     combination takes place.  My testimony considers whether the merger of UE
     and CIPS is likely to create or increase market power and significantly
     affect competition.  I separately address the effects of the proposed
     merger on the supply of transmission services, various wholesale or bulk
     power markets and various retail markets.  I also consider whether there
     are important vertical concerns raised by the merger.

Q.   PLEASE SUMMARIZE YOUR CONCLUSIONS.
A.   I conclude that the merger of UE and CIPS will not create or increase
     market power in any relevant market, nor facilitate its exercise through
     collusion.  Concurrently with their merger application, Applicants are
     filing consolidated (one-system) open access transmission tariffs which
     conform with FERC's requirements as tentatively set forth in its
     transmission NOPR.  Because these tariffs make available all of the direct
     interconnections 
<PAGE>
 
                                                           Exhibit No.___(RWF-1)
                                                                   Page 6 of 100


     of both UE and CIPS as receipt and delivery points, they have the potential
     to expand wholesale bulk power trading opportunities in the region. While I
     believe that the wholesale bulk power markets within which UE and CIPS
     operate already are competitive and that this will not be changed as a
     result of the merger, the filing by the two firms of these single-system
     tariffs should eliminate any residual concern that market power problems
     might arise as a result of the merger. The evidence which I have reviewed
     does not suggest that any additional measures are required to mitigate
     perceived concerns about market power resulting from the merger or from the
     combination of the transmission systems owned by Applicants.

     In addition to the competition-enhancing inference logically associated
     with Applicants' filing of their open access tariffs, existing structural
     conditions in and around areas served by Applicants also mitigate concern
     that the merger will create or enhance market power.  There are several
     utilities that are interconnected with UE or CIPS that already have filed
     open access transmission tariffs.  Some of these also are the result of
     mergers and therefore allow transport across what formerly were two
     independent systems without the pancaking of transmission charges.  For the
     most part the transmission systems of UE and CIPS do not overlap, and so
     the merger does not eliminate one independent and potentially competing
     transmission alternative.  Where there are entities that are interconnected
     with both UE and CIPS, the merger-induced reduction of one directly
     connected trading partner does not present competitive concerns because
     several other directly connected trading partners remain in each case.
<PAGE>
 
                                                           Exhibit No.___(RWF-1)
                                                                   Page 7 of 100

     I also conclude that the merger will not create or increase market power in
     specific relevant wholesale bulk power markets that I examine, i.e., short
     term capacity, long term capacity and nonfirm energy.  Both UE and CIPS
     actively seek to market short term capacity, and so the merger necessarily
     will reduce by one the number of independent sellers.  However, many other
     independent participants still will remain.  Moreover, UE has little or no
     uncommitted capacity, and so its ability to participate as a seller in
     short term capacity markets essentially is limited to situations where it
     resells the capacity which it simultaneously buys from others, that is,
     where it acts as a marketer.  Because entry is relatively easy for those
     seeking only to remarket capacity purchased from others, the elimination of
     one such marketer does not present competitive concerns.  As concerns short
     term capacity, I also examine the concentration of uncommitted capacity in
     various first tier markets and find that the merged firm's share of
     uncommitted capacity in all first tier markets is less than the 20 percent
     level which FERC in the past has used as a threshold to demarcate
     situations where market power problems potentially might be present.  As
     concerns the possible exercise of buyer market power in short term capacity
     markets, a stand-alone CIPS contemplates no new resource additions through
     at least 2016.  This makes it very unlikely that a stand-alone CIPS would
     be seeking to purchase capacity during this time period other than for
     remarketing purposes.  If a stand-alone CIPS is not likely to be a
     purchaser of short term capacity, the merger cannot reasonably be said to
     increase buyer market power in short term capacity markets.
<PAGE>
 
                                                           Exhibit No.___(RWF-1)
                                                                   Page 8 of 100


     With respect to long term generating capacity, I believe that it is
     unlikely as a general matter that any one firm will possess market power.
     This is evidenced by the plethora of nonutility generation that has come on
     line in recent years.  Moreover, Applicants' filing of consolidated or one-
     system open access transmission tariffs should make entry by new nonutility
     generators easier than it would have been without the merger.  The evidence
     in this case also indicates that Applicants do not possess the ability to
     deny to their would-be competitors access to other key inputs (i.e., fuel
     supplies, fuel transport facilities, generating sites) needed for such
     competition.  The possibility that Applicants might exercise buyer or
     monopsony power in long term capacity markets is undercut by their
     relatively small share of total demand in the region where they operate,
     the ability of those who would construct new generation to move their
     projects elsewhere if Applicants refuse to offer acceptable purchase terms,
     and the ability of those who would construct new generation to use
     Applicants' open access transmission tariffs to market that new generation
     capacity to others.

     My conclusions concerning nonfirm energy markets are similar.  Nonfirm
     energy markets encompass a variety of closely substitutable interchange
     transactions that generating utilities engage in principally to improve the
     economics of dispatch.  A buyer whose own capacity resources are sufficient
     to accommodate its needs nevertheless may choose to purchase nonfirm energy
     from another supplier if doing so allows it to lower its total generation
     cost.  But its desire to do so will be limited by the prices which
     interchange suppliers seek and so, in that sense, the buyer's own
     generation is a substitute product.  
<PAGE>
 
                                                           Exhibit No.___(RWF-1)
                                                                   Page 9 of 100

     Typically, vertically integrated suppliers in this country participate in
     nonfirm energy markets as both suppliers and purchasers, depending upon
     their demands and resources and market conditions at a point in time. Both
     UE and CIPS engage in nonfirm energy transactions with their neighbors,
     frequently using energy which they purchase from one party to support
     simultaneous sales to other parties. I perform two types of analyses
     concerning the possibility that the merger might create or enhance seller
     market power in nonfirm energy markets. First, as FERC has done on other
     occasions, I compute the merged firm's share of total generating capacity
     in first tier markets. I find that when the data are properly interpreted,
     the merged firm's share of total generating capacity in each first tier
     market falls below FERC's 20 percent threshold. I also examine historical
     data on actual nonfirm energy sales within a relatively narrow region
     encompassing just UE and CIPS and their direct interconnections. There are
     several reasons that such an analysis will tend to overstate concentration,
     and therefore possible inferences about market power, but I still find that
     the data do not suggest concerns about seller market power under Department
     of Justice guidelines. Moreover, the facts (i) that UE and CIPS when
     combined comprise a relatively small percentage of total demand in the
     region in which they operate, and (ii) that so many interconnected
     utilities already have filed open access transmission tariffs, both suggest
     that any concerns relating to merger-induced buyer market power in regional
     nonfirm energy markets are unfounded.

     I also conclude that the merger will not significantly affect electric
     versus electric retail competition.  This conclusion holds for each of the
     types of retail electric competition that 
<PAGE>
 
                                                           Exhibit No.___(RWF-1)
                                                                  Page 10 of 100


     sometimes are discussed--franchise competition, yardstick competition,
     locational or customer competition, and fringe area competition.

     I also conclude that the merger will not significantly affect gas versus
     electric competition at the retail level. Both UE and CIPS sell gas and
     electricity to retail customers, but there are only about 900 customers
     that today can purchase electricity from CIPS and gas from UE and no
     customers that can purchase gas from CIPS and electricity from UE. Thus,
     there is little potential for direct gas versus electric competition
     between the two firms premerger, and therefore little such competition
     which the merger could reduce. Of course, traditional regulatory
     protections remain for the few situations where gas versus electric
     competition might be reduced.

     Finally, I conclude that a merger of UE and CIPS does not present important
     concerns about vertical issues.  The principal vertical issue that exists
     in this industry today is whether, when generation and transmission are
     commonly owned, the integrated firm is able to use its transmission
     ownership in a fashion such that sales of its own generation are favored
     over those of its competitors.  The functional unbundling requirement that
     is contained in FERC's transmission NOPR addresses this topic, but some
     would argue that it does not address perceived vertical concerns
     sufficiently.  However, whether or not that is true is more of a generic
     issue and not one which presents itself in the context of assessing the
     effects of a merger between UE and CIPS.  The evidence which I have
     reviewed does not suggest that a merger between UE and CIPS will create or
     exacerbate market power 
<PAGE>
 
                                                           Exhibit No.___(RWF-1)
                                                                  Page 11 of 100

     such that additional remedies beyond those contained in the transmission
     NOPR can be justified in the context of this merger.

Q.   HOW IS YOUR TESTIMONY ORGANIZED?
A.   My testimony is organized as follows:  Section III describes the general
     approach which is appropriate for analyzing the competitive effects of
     mergers; Section IV discusses transmission issues, including the
     Applicants' proposed open access transmission tariffs and the effects of
     the merger on transmission availability; Section V discusses the effects of
     the merger on individual wholesale bulk power markets (short term capacity,
     long term capacity, and nonfirm energy); Section VI addresses retail
     electric and gas versus electric competition issues; and Section VII
     addresses potential vertical concerns.

III. APPROACH TO ANALYZING COMPETITIVE EFFECTS ASSOCIATED WITH ELECTRIC UTILITY
     MERGERS

Q.   WHAT IS THE PURPOSE OF A COMPETITIVE ANALYSIS OF A MERGER BETWEEN UE AND
     CIPS?
A.   As would be true for a competitive analysis of any other proposed merger,
     the purpose is to determine whether a merger of UE and CIPS will create or
     increase market power in any relevant market, or facilitate its exercise.
     The usual focus in such a competitive investigation is on possible merger-
     induced increases in seller market power, but in some cases there may also
     be concern about possible increases in buyer market power.

Q.   HOW COULD A MERGER ALLOW THE EXERCISE OF SELLER OR BUYER MARKET POWER?
<PAGE>
 
                                                           Exhibit No.___(RWF-1)
                                                                  Page 12 of 100

A.   Seller market power exists when sellers can raise prices above competitive
     levels and increase profits by doing so.  If buyers have relatively few
     good supply alternatives, the sellers may be able to maintain prices above
     competitive levels in the marketplace.  If the buyers do have good supply
     alternatives, they would simply switch, and the price increases would not
     hold.  At least as concerns its potential effects on wholesale bulk power
     markets, the combination of UE and CIPS can be viewed principally as a
     horizontal merger, which is one where, premerger, the parties compete or
     potentially could compete in the same market.  In theory, a horizontal
     merger could create or increase market power because it would reduce by one
     the number of alternative suppliers to whom customers could turn if the
     merged firm sought to increase price.  A horizontal merger also could
     facilitate the exercise of seller market power if the number of surviving
     firms was small enough that it would facilitate collusion on pricing and
     output decisions.
 
     Buyer market power exists when those who purchase inputs are able to
     restrict the amount of such purchases and therefore depress the price paid
     below competitive levels.  If sellers have relatively few good alternatives
     for marketing their output, the buyers can hold prices below competitive
     levels in the marketplace.  If the sellers do have good alternatives, they
     would simply sell to them instead, and the price decrease would not hold.
     A horizontal merger in theory could create or increase buyer market power
     because it would reduce by one the number of alternative buyers to whom
     sellers could turn.  Likewise, a horizontal merger could facilitate the
     exercise of buyer market power if the number of surviving firms was small
     enough such that it would facilitate collusion on purchasing policies.
<PAGE>
 
                                                           Exhibit No.___(RWF-1)
                                                                  Page 13 of 100

Q.   WHAT ARE RELEVANT MARKETS?
A.   A relevant market is a market which bears directly upon activities
     considered in an antitrust analysis.  In this case, the areas of interest
     which are affected by the merger are the areas of actual and potential
     competitive overlap between the business activities of UE and the business
     activities of CIPS.  This overlap should be defined with both product and
     geographic dimensions.

Q.   HOW ARE RELEVANT MARKETS DEFINED FOR A MERGER ANALYSIS?
A.   The analysis begins with a definition of the actual or potential overlap
     between the business activities of the merging parties.  By way of example,
     both UE and CIPS make nonfirm energy sales (or sales of closely
     substitutable products) to other utilities in the regions surrounding the
     areas where they serve.  Therefore, nonfirm energy sales represent one area
     of overlap to consider in a competitive analysis of the merger's effects.
     By contrast, UE sells electricity to individual retail customers located in
     its service territory (e.g., metropolitan St. Louis), whereas CIPS sells
     electricity to individual retail customers located in its service territory
     (e.g., Carbondale and Quincy, Illinois).  Because these two service
     territories are mutually exclusive, the sales of electricity to individual
     retail customers located in these areas do not represent an area of overlap
     to consider in a merger analysis because there is no existing competition
     between the two firms for making sales to these individual customers.  This
     situation will not change unless existing institutional arrangements in the
     industry are dramatically altered.
<PAGE>
 
                                                           Exhibit No.___(RWF-1)
                                                                  Page 14 of 100

     Once the realistic overlap areas between the business activities of the
     merging firms are determined, each is expanded, as appropriate, to reflect
     both demand and supply-side substitutability.  Demand-side substitutability
     means that the analysis must encompass not only products and services sold
     by the merging parties but also products or services that are reasonably
     interchangeable.  Competition from these substitute products or services
     places constraints on the prices which can be charged for products in the
     overlap area.  Supply-side substitutability refers to the ability of firms
     not currently in the market to alter their productive processes to produce
     the product or service in question.  Firms that can alter their productive
     processes easily ought to be considered as participants in the relevant
     market because the potential for competition from them acts as a constraint
     on price.  The goal is to define the relevant market to include
     sufficiently close substitutes to the products or services in the overlap
     area but to exclude those that are remote.  Moreover, just as the overlap
     area needs to be expanded to incorporate products and services that are
     reasonably interchangeable with those sold by the merging firms, it also
     must be expanded geographically to incorporate supplies that might be made
     available from beyond the areas where the merging parties sell their
     products and services.  Supplies from outside the area where the merging
     parties historically have sold their products and services, if they can be
     transported into that area at reasonable cost, also will act as a
     constraint on the prices that the merging firms can charge and,
     accordingly, ought to be considered as part of the relevant market.
<PAGE>
 
                                                           Exhibit No.___(RWF-1)
                                                                  Page 15 of 100

Q.   IS DEFINING RELEVANT MARKETS A TASK WHICH CAN BE PERFORMED WITH PRECISION?
A.   Generally not.  Decisions about where boundaries ought to be drawn, and
     which suppliers and products ought to be included and which ought to be
     excluded, frequently must be based upon imperfect or less than complete
     information.  Because there generally are not clear breaks in the "chain of
     substitution," the exercise of judgment by the analyst is important.

Q.   HOW DOES THE APPROACH WHICH YOU HAVE OUTLINED FOR DEFINING RELEVANT MARKETS
     CORRESPOND TO THAT CONTAINED IN THE DEPARTMENT OF JUSTICE AND FEDERAL TRADE
     COMMISSION HORIZONTAL MERGER GUIDELINES DATED APRIL 2, 1992 (MERGER
     GUIDELINES)?
A.   The framework outlined above is substantially the same as that contained in
     the Merger Guidelines.  The Merger Guidelines defines a relevant market as
     the smallest grouping of substitute products and geographic areas for which
     a hypothetical profit maximizing firm "that was the only present and future
     producer or seller of those products in that area" could impose a "small
     but significant and nontransitory" price increase.  The analysis begins by
     using individual products sold by the merging firms as preliminary relevant
     market definitions.  Then, if in response to a small but significant and
     nontransitory price increase for such product by the hypothetical
     monopolist, reductions in sales reduce profitability, additional products
     must be added to this preliminary version of the market until a small but
     significant and nontransitory price increase does not reduce profitability.
     Once defined, according to the Merger Guidelines, participants in the
     relevant market will include "firms currently providing or selling the
     market's products in the market's geographic area" and 
<PAGE>
 
                                                           Exhibit No.___(RWF-1)
                                                                  Page 16 of 100

     "may include other firms depending on their likely supply responses to a
     'small but significant and nontransitory price increase.'" These
     adjustments essentially are the same as described above, i.e., expanding
     the boundaries of the overlap area, as appropriate, to reflect both demand
     and supply-side substitutability.

     The Merger Guidelines, however, also provides precise criteria to determine
     breaks in the chain of substitutability.  Thus, the Merger Guidelines
     specifies a "price increase of five percent lasting for the foreseeable
     future" for "the small but significant and nontransitory increase in price"
     (although suggesting that different figures might be appropriate for
     different industries) and indicates that firms not currently producing the
     relevant product in the relevant market will be considered as participants
     if probable supply responses by them could occur within one year.

Q.   HOW ARE RELEVANT MARKETS USED TO DETERMINE WHETHER A PROPOSED MERGER IS
     LIKELY TO CREATE OR INCREASE MARKET POWER, OR FACILITATE ITS EXERCISE
     THROUGH COLLUSION?
A.   Relevant markets provide a useful analytical construct to focus the
     required competitive investigation on areas that potentially may present
     problems as opposed to those which obviously will not.  Once relevant
     markets are defined, the usual approach, if data are available, is to use
     market share and other concentration measures for those markets to
     distinguish between mergers which require further investigation and those
     which do not.  Relatively high values for these indicators signal that
     market power concerns may be present and therefore represent a call for
     more detailed analyses.  Conversely, relatively 
<PAGE>
 
                                                           Exhibit No.___(RWF-1)
                                                                  Page 17 of 100

     low values for these measures suggest that market power concerns almost
     certainly are absent, even though one competitor will have been removed
     from the market, and therefore that no further and more detailed analyses
     need be undertaken. Thus, these summary statistical indicators are a
     screening device.

     However, there is no single measure of concentration, nor level of any such
     measure, that unambiguously differentiates between situations where market
     power is and is not likely to be of concern.  The Merger Guidelines
     principally uses the Herfindahl-Hirschmann Index (HHI) as a screening
     device.  An HHI is calculated by summing the squared market shares of all
     firms in the market.  The maximum possible HHI (i.e., 100/2/ x 1 = 10,000)
     is present in a market that has only a single supplier.  A market with ten
     equally sized firms has an HHI of 1,000 (i.e., 10/2/ x 10 = 1,000).  The
     Merger Guidelines considers markets with postmerger HHIs below 1,000 to be
     "unconcentrated."  Under the Merger Guidelines, mergers in unconcentrated
     markets "ordinarily require no further analyses."  The Merger Guidelines
     considers markets with postmerger HHIs between 1,000 and 1,800 to be
     "moderately concentrated."  If a merger in such a market causes the HHI to
     increase by more than 100, the merger, again according to the Merger
     Guidelines, "potentially raise[s] significant competitive concerns"
     depending on other factors such as ability to collude and barriers to
     entry.  The Merger Guidelines considers markets with postmerger HHIs
     greater than 1,800 to be "highly concentrated." If a merger in such a
     market causes the HHI to increase by more than 50, the merger "potentially
     raise[s] significant competitive 
<PAGE>
 
                                                           Exhibit No.___(RWF-1)
                                                                  Page 18 of 100

     concerns," according to the Merger Guidelines, depending again on other
     factors. I develop HHI data below for my analysis of nonfirm energy
     markets.

Q.   ARE THERE OTHER SUMMARY SCREENING MEASURES USED FOR MERGER ANALYSES?
A.   Yes.  The Merger Guidelines also includes market share as a screening
     device in merger analyses.  Under some circumstances a postmerger market
     share of 35 percent for the merging parties "may be relied upon to
     demonstrate that there is a significant share of sales in the market
     accounted for by customers who would be adversely affected by the merger."
     Also, on other occasions (e.g., Public Service Company of Indiana, 51 FERC
     (P) 61,367; Entergy Services, Inc., 58 FERC (P) 61,234, hereafter Entergy;
     and Louisville Gas and Electric, 62 FERC (P) 61,016), FERC has used a 20
     percent market share figure to distinguish between firms which may or may
     not have market power in energy and capacity markets. My discussion below
     develops market shares for energy and short term capacity markets.

     Again, however, market share and other concentration data are useful as
     screening devices to distinguish between mergers which may present
     competitive concerns and those which do not.  As the Merger Guidelines
     states, these measures "provide only the starting point for analyzing the
     competitive impact of a merger."  Other factors, including ease of entry,
     also must be considered.  Indeed, where entry is easy, i.e., "timely,
     likely and sufficient in its magnitude, character and scope to deter or
     counteract the competitive effects of concern 
<PAGE>
 
                                                           Exhibit No.___(RWF-1)
                                                                  Page 19 of 100

     . . . [a] . . .merger raises no antitrust concern and ordinarily requires 
     no further analysis" (Merger Guidelines at page 47).

Q.   WHAT RELEVANT BULK POWER MARKETS HAVE YOU EXAMINED IN THIS CASE?
A.   As indicated earlier, I have examined the same wholesale bulk power markets
     that have been examined in other merger or market power investigations at
     FERC:  short term capacity, long term capacity and nonfirm energy.  I also
     have considered whether the merger will affect electric versus electric and
     gas versus electric competition at the retail level.

IV.  TRANSMISSION

Q.   WHAT SET OF TOPICS ARE ADDRESSED IN THIS SECTION OF YOUR TESTIMONY?
A.   I discuss three topics in this subsection of my testimony.  First, I
     briefly describe the open access tariffs that UE and CIPS are filing in
     conjunction with their merger application.  Second, I identify the
     interconnections of UE and CIPS and consider whether the merger-induced
     reduction in the number of directly interconnected trading partners that
     some utilities will see presents significant competitive concerns.  Third,
     I consider whether a merger of UE and CIPS presents market power concerns
     as a result of a reduction in competing transmission paths.

     A. OPEN ACCESS TRANSMISSION TARIFFS
        --------------------------------
<PAGE>
 
                                                           Exhibit No.___(RWF-1)
                                                                  Page 20 of 100

Q.   PLEASE BRIEFLY DESCRIBE THE OPEN ACCESS TRANSMISSION TARIFFS WHICH UE AND
     CIPS ARE FILING.
A.   Concurrently with their merger application, UE and CIPS are filing open
     access transmission tariffs designed to comply with FERC's requirements as
     tentatively set forth in its transmission NOPR issued in Docket No. RM95-8-
     000.  These tariffs--the "Ameren Tariffs"--are described more fully in the
     testimony of Ms. Maureen A. Borkowski but, in essence, largely replicate
     the pro forma tariffs attached to the NOPR.

Q.   WILL THE FILING OF THE AMEREN TARIFFS EXPAND THE OPPORTUNITIES OF OTHERS
     FOR PARTICIPATING IN REGIONAL BULK POWER MARKETS BEYOND WHAT WOULD COME
     ABOUT JUST FROM THE IMPLEMENTATION OF FERC'S TRANSMISSION NOPR?
A.   Yes.  A significant consideration is that a one-system tariff has been
     filed which combines the transmission assets of both CIPS and UE.   Thus,
     while FERC's NOPR, unless it is changed significantly, ultimately will
     require that all jurisdictional transmission owners (including UE and CIPS
     were they not to merge) file open access transmission tariffs along the
     lines set forth in the NOPR, the filing by UE and CIPS still expands bulk
     power trading opportunities for other, interconnected utilities by
     combining under a single tariff the transmission systems of both UE and
     CIPS.  This will allow most of those interconnected utilities to transact
     with more trading partners by paying only a single wheeling fee whereas,
     without a merger, arranging two transmission transactions and paying two
     wheeling charges would have been required.  Because of the manner in which
     transmission prices are determined under FERC's traditional pricing
     procedures, the ceiling price under 
<PAGE>
 
                                                           Exhibit No.___(RWF-1)
                                                                  Page 21 of 100

     the Ameren Tariffs necessarily always will be less than the sum of the two
     stand-alone ceiling prices. As a result, transactions may go forward in the
     future that, without the merger, would have been deterred by the
     "pancaking" of transmission charges.

Q.   CAN YOU PROVIDE SOME EXAMPLES?
A.   There are several possible examples. Under the proposed tariff, AEP and
     Northern Indiana Public Service Company (NIPSCO) in Indiana and Central
     Illinois Light Company (CILCO) in Illinois will be able to transact with
     Associated Electric Cooperative, Inc. (AEC) and Kansas City Power & Light
     (KCPL) in Missouri by paying only a single wheeling fee, whereas without
     the merger two separate wheeling transactions would be required.  Likewise,
     CINergy, Inc. (CINergy) now will be able to transact with AEC, KCPL and
     MidAmerican Energy Company (MEC) by paying only a single wheeling fee,
     whereas without the merger two wheeling fees would be required.
     Springfield, Illinois (Springfield, IL), a generating municipal system now
     interconnected with only Illinois Power Company (IP), CILCO and CIPS, will
     have all of UE's direct interconnections opened to it for a single wheeling
     fee.  Columbia, Missouri (Columbia), a generating municipal system now
     interconnected with only UE and AEC, will have all of CIPS's
     interconnections opened to it for a single wheeling fee.

Q.   IS THIS CONSIDERATION IMPORTANT FOR WHAT SOMETIMES ARE CHARACTERIZED AS
     TRANSMISSION DEPENDENT UTILITIES OR TDUS?
<PAGE>
 
                                                           Exhibit No.___(RWF-1)
                                                                  Page 22 of 100

A.   Yes.  As I discuss below, there are several full and partial requirements
     customers that have connections with only UE or CIPS, but with no other
     utility.  Consistent with their purchase obligations under these existing
     contracts, postmerger these smaller systems will be able to have power
     wheeled to them from all of the other utilities directly interconnected
     with either UE or CIPS, whereas without the merger their "one wheel"
     options would be confined to just the direct interconnections of UE or
     CIPS, whichever they are connected with, but not both.
 
Q.   WILL THE CONSOLIDATED (ONE-SYSTEM) TRANSMISSION CHARGE BE BENEFICIAL TO ALL
     PARTIES?
A.   Having a consolidated transmission charge obviously is beneficial to
     parties that, in the absence of the merger, would be forced to pay pancaked
     wheeling charges to get across the systems of both UE and CIPS or, because
     such pancaked charges would be too high, would pursue alternative purchase
     or sales opportunities.  However, because of the manner in which
     transmission prices are developed under existing FERC procedures, it is
     possible that some customers will be disadvantaged.  The ceiling price
     under the Ameren Tariffs necessarily will fall somewhere between the single
     system ceiling price for wheeling across UE's system and the single system
     ceiling price for wheeling across CIPS's system. The former is lower and
     the latter is higher.  Accordingly, customers that in the absence of the
     merger would have desired to wheel across just the UE system may face price
     increases.  Without the merger, their payments would be capped at the lower
     ceiling price for wheeling across UE's system, but postmerger their
     payments will be capped by the higher ceiling price associated with the
     consolidated system.  Assessing the significance of this 
<PAGE>
 
                                                           Exhibit No.___(RWF-1)
                                                               Page 23 of 100

     effect requires that several factors be considered. One is that, as
     suggested, prices in the Ameren Tariffs represent only limits on the
     maximum prices which can be charged and that prices will fall below these
     price caps when market conditions dictate. A second consideration is that
     the ceiling price increases which will be faced by any customers who want
     to wheel across just the UE system--i.e., stand-alone UE charge versus
     consolidated Ameren charge--necessarily are counterbalanced by ceiling
     price decreases for those customers that wish to wheel across just the CIPS
     system. A third consideration is that even those customers who wish to
     enter into transactions that involve wheeling across just the UE system
     presumably at times will benefit from the ability to wheel across both
     systems also. Finally, these increased transmission charges will not have
     adverse competitive consequences to the extent that UE must charge itself
     the same price for transmission service for bulk power sales it makes.
     Consider, for example, one of the municipal systems that currently
     purchases its full requirements supply from UE. At the expiration of its
     current contract with UE, it will be eligible to use the Ameren Tariffs to
     purchase its power supply requirements from other vendors. The price which
     it pays under those tariffs will be the same whether it continues with UE
     as its supplier or selects another.
Q.   WILL THE OPEN ACCESS TARIFFS MITIGATE CONCERN THAT THE MERGED FIRM WILL BE
     ABLE TO EXERCISE "TRANSMISSION MARKET POWER," OR MIGHT ADDITIONAL REMEDIES
     BE REQUIRED TO DO SO?
A.   I understand the expression "transmission market power" to refer to a
     vertically integrated utility's use of its transmission assets to exercise
     market power in generation or bulk power 
<PAGE>
 
                                                           Exhibit No.___(RWF-1)
                                                                  Page 24 of 100

     markets. FERC previously has indicated that it could not "find any merger
     consistent with the public interest if the merging public utilities do not
     offer comparable transmission services. . ." and "that, as a general
     matter, comparable transmission access should adequately mitigate any
     utility's increased transmission market power. . ." (El Paso Electric
     Company and Central and South West Services, Inc., 68 FERC (P)61,181)
     resulting from a merger. The evidence which I have reviewed, and which is
     discussed below, indicates that the merged firm will not be able to
     exercise market power in wholesale bulk power markets anyway. The filing of
     the Ameren Tariffs should address any residual concern in this area. Based
     upon my review of the evidence, I see no reason to go beyond the comparable
     open access requirement in this case to mitigate concerns about the
     exercise of perceived transmission market power.

     B. INTERCONNECTIONS
        ----------------

Q.   WITH WHAT OTHER UTILITIES DOES UE HAVE INTERCONNECTIONS?
A.   These interconnections are identified in the testimony of Ms. Borkowski in
     this proceeding and in Exhibit ___(RWF-4).  Essentially these
     interconnections fall into the following two categories:  (i) direct
     interconnections via facilities owned solely by UE, and (ii) contractual
     interconnections through facilities owned at least in part by others.  The
     distinction between these two categories is important because the types of
     use that UE can make of its contractual interconnections is limited to
     those permitted by the underlying contract vehicles.  In particular, as
     discussed below, certain of UE's interconnections are through "common bus"
     agreements which do not contemplate wheeling for third parties.  
<PAGE>
 
                                                           Exhibit No.___(RWF-1)
                                                                 Page 25 of 100

     
     Thus, while these interconnections may allow UE to buy electricity from its
     contractual trading partners, or sell electricity to them, they do not
     permit UE or the merged entity to provide transmission service which allows
     third parties to conduct similar transactions.

Q.   IS THIS A CONSIDERATION THAT IS RELATED TO THE MERGER?
A.   No.  UE cannot wheel power for others to or from these interconnections
     whether or not it merges with CIPS.

Q.   DOES IT PRESENT COMPETITIVE CONCERNS AS A RESULT OF THE MERGER?
A.   No.  As I discuss below, each potentially affected trading partner still
     has numerous other entities with which it can deal, postmerger, and so the
     fact that it may not be able to transact directly with UE's contractual
     interconnections does not present merger-related competitive concerns.
     Moreover, summary share and concentration data for short term capacity and
     nonfirm energy markets, discussed below, fall below threshold levels for
     concern about the potential exercise of market power

Q.   PLEASE CONTINUE WITH YOUR DISCUSSION OF UE'S INTERCONNECTIONS.
A.   UE has direct interconnections with six investor-owned utilities (IOUs),
     one municipal utility system, one generation and transmission (G&T)
     cooperative, two federal government agencies, and one other entity jointly
     owned by it, CIPS and two other IOUs.  The six IOUs are CIPS,  IES
     Utilities, Inc. (IES), IP, KCPL, MEC, and Missouri Public Service Company
     (MoPub).  The interconnected municipal system is Columbia, while the
 
<PAGE>
 
                                                           Exhibit No.___(RWF-1)
                                                                 Page 26 of 100

     interconnected G&T cooperative is AEC which, with total capacity of more
     than 3,500 megawatts (including firm purchases), is one of the largest G&T
     cooperatives in the country.  The two interconnected federal governmental
     agencies are the Tennessee Valley Authority (TVA) and the Southwestern
     Power Administration (SPA).  The interconnection with TVA is via a joint
     agreement with CIPS and IP, the other two members of the Ill-Mo Pool in
     which UE participates.  The interconnected joint venture entity is Electric
     Energy, Inc. (EEI).  EEI, which is jointly owned by UE (40 percent), CIPS
     (20 percent), IP (20 percent), and Kentucky Utilities or KU (20 percent),
     owns 1,015 megawatts of coal-fired electric generation capacity in southern
     Illinois (the "Joppa Plant") and a substation which connects the Joppa
     Plant to EEI's owners (collectively "Sponsors") as well as transmission
     lines which connect EEI to a uranium processing plant (the "Paducah
     Project") in western Kentucky that today is operated by the United States
     Enrichment Corporation (USEC).

     UE's direct interconnection with MEC is via facilities covered by the Twin
     Cities-Iowa-St. Louis 345 Kilovolt Interconnection Coordination Agreement
     (East Line Agreement).  Each of the participants in this agreement owns
     individual segments of the entire line, referred to as the East Line, which
     extends from the Twin Cities area in the north to UE's Montgomery
     substation west of St. Louis.  UE's participation in this line provides it
     with contractual interconnections with the other owners, including IES,
     with which it also has a direct interconnection, and Interstate Power
     Company (IPW) and Northern States Power Company (NSP), with which it does
     not have direct interconnections. Through its participation in the
     Missouri-Arkansas EHV Interconnection, UE has contractual 
 
<PAGE>
 
                                                           Exhibit No.___(RWF-1)
                                                                 Page 27 of 100


     interconnections with AEC and Arkansas Power & Light Company (APL), an
     Entergy Corporation (Entergy) subsidiary. The line covered by this
     agreement extends from southeast Missouri into northeast Arkansas. Through
     its participation in the Mo-Kan-Ok 345 Line, UE has contractual
     interconnections with AEC, Kansas Gas & Electric Company (KGE) and Public
     Service Company of Oklahoma (PSO). This line extends from UE's Labadie
     substation at its Labadie plant near St. Louis across Missouri to KGE's
     Neosho substation in southeast Kansas and then south to PSO's Oneta
     substation in northeast Oklahoma. KGE is a subsidiary of Western Resources,
     Inc. (WR), and PSO is a subsidiary of Central and South West Corporation
     (CSW). Also, through the agreements governing ownership of EEI, UE and the
     other "northern owners" (CIPS and IP) have constructed transmission lines
     to the Joppa Plant. KU, the other owner, has constructed transmission
     facilities which connect directly with the Paducah Project and has
     contractual rights to conduct interchange transactions from that point with
     EEI and the northern owners. Accordingly, all of EEI's owners are
     contractually connected with each other through facilities at the Joppa
     Plant and the Paducah Project and can exchange power with each other
     pursuant to the service schedules attached to the underlying Sponsors-EEI
     Agreement. It is my understanding that in each of the above cases--i.e.,
     the East Line Agreement, the Missouri-Arkansas EHV Interconnection, the Mo-
     Kan-Ok 345 Line, and the Sponsors-EEI Agreement--the underlying contractual
     agreements have not been interpreted historically to accommodate third
     party wheeling. Accordingly, where these agreements provide the only
     interconnection between UE and another system (i.e., IPW, NSP, APL/Entergy,
     KGE/WR, PSO/CSW, and KU), that other system is not included as a 
 
<PAGE>
 
                                                           Exhibit No.___(RWF-1)
                                                                  Page 28 of 100

     potential receipt and delivery point under the open access tariffs now
     being filed. An exception concerns MEC, with which UE has no
     interconnections other than through the East Line. However, UE has a
     separate contractual arrangement with IES which allows UE to wheel power to
     and from MEC, even though the direct interconnection between UE and MEC is
     governed by the East Line Agreement which does not contemplate wheeling.
     Accordingly, MEC is included as a receipt and delivery point under the
     proposed open access tariff. Also, systems with which UE has both direct
     and contractual interconnections (i.e., AEC, EEI, IES, IP and TVA) are
     included as potential receipt and delivery points un der the tariff.

     Finally, UE's interconnection agreement with AEC, which incorporates a
     variety of rights and obligations which the parties have, includes a
     provision giving UE a contractual interconnection with St. Joseph Light &
     Power Company (SJLP), with which it otherwise has no direct trading rights.
     UE believes that via this provision it can provide wheeling service to or
     from SJLP and, accordingly, SJLP is included as a potential receipt and/or
     delivery point under the Ameren Tariffs.

Q.   IN WHAT RELIABILITY COUNCIL REGIONS ARE THE UTILITIES THAT ARE
     INTERCONNECTED WITH UE LOCATED?
A.   They are located in the Mid-Continent Area Power Pool (MAPP) to the north
     of UE, the Southwest Power Pool (SPP) to the west and south of UE, the
     Southeastern Electric Reliability Council (SERC) region to the south and
     east of UE, the East Central Area 
 
<PAGE>
 
                                                           Exhibit No.___(RWF-1)
                                                                  Page 29 of 100

     Reliability Coordination Agreement (ECAR) region to the east of UE, and the
     Mid-America Interconnected Network (MAIN), which is the reliability council
     region within which UE operates. IES, IPW, MEC and NSP are located in MAPP;
     AEC, CSW, Entergy, KCPL, MoPub, SJPL and SPA are located in SPP; TVA is
     located in SERC; KU is located in ECAR; and CIPS, Columbia, EEI and IP all
     are located in MAIN.

Q.   ARE THERE OTHER UTILITY SYSTEMS CONNECTED TO UE'S TRANSMISSION LINES?
A.   Yes.  In addition to the interconnected utilities discussed above, there
     are 14 municipal utility systems and two distribution cooperative systems
     connected to UE's transmission lines.  These systems are all either full or
     partial requirements customers of UE and operate within UE's control area.
     The municipal systems serve in California, Centralia, Farmington,
     Fredericktown, Hannibal, Jackson, Kahoka, Kirkwood, Linneus, Marceline,
     Owensville, Perry, Rolla and St. James, Missouri.  One of the distribution
     cooperatives, Citizens Electric Corporation, is a full requirements
     customer of UE and serves in mostly rural areas of Missouri to the south of
     St. Louis.  The other distribution cooperative customer, Sho-Me Power
     Corporation (Sho-Me), receives only a very small portion of its
     requirements from UE--less than 0.3 percent--with most of its capacity and
     energy being supplied by AEC.  (UE provides full requirements service at
     only one of Sho-Me's delivery points, under an agreement which will
     terminate at the end of 1995).  Other distribution cooperatives in Missouri
     also are served by AEC. With the exception of Sho-Me, none of these 16
     systems is connected with any utility other than UE (and even for Sho-Me
     the distribution point served by UE is not integrated with those served by
     AEC).  Only five of
 
<PAGE>
 
                                                           Exhibit No.___(RWF-1)
                                                                  Page 30 of 100

     these systems (Jackson, Kahoka, Marceline, Owensville and Sho-Me) any
     generation (a total of approximately 36 megawatts) of their own. The sum of
     the individual peak demands on UE's system for these 6 utilities was 335
     megawatts in 994.

Q.   WILL THESE OTHER SYSTEMS BE ELIGIBLE CUSTOMERS UNDER THE OPEN ACCESS
     TRANSMISSION TARIFFS NOW BEING FILED BY UE AND CIPS?
A.   These systems are served under contracts which expire on December 3, 998
     (eight systems), December 3, 2000 (six systems), May 3, 2003 (one system)
     and, as mentioned, in one case under an agreement which expires December 3,
     995. So long as they meet their purchase obligations under their existing
     contracts, these systems will be eligible customers under the Amere n
     Tariffs when the merger is consummated. As a result, the merger
     significantly expands the bulk power supply alternatives available to them
     from those which would exist without the merger. Whereas premerger these
     munic ipal and cooperative suppliers could access only the utilities now
     directly interconnected with UE through payment of a single wheeling
     charge, that single wheeling charge postmerger will allow them to access
     all of CIPS's direct interconnections as well, including Commonwealth
     Edison Company (CE), AEP, NIPSCO and PSI Energy, Inc. (PSI)/CINergy.

Q.   WITH WHAT OTHER UTILITIES IS CIPS INTERCONNECTED?
A.   These interconnections are identified in the testimony of Mr. Gilbert W.
     Moorman and in Exhibit ___(RWF-4). CIPS has direct interconnections with
     EEI, TVA, seven IOUs, one
<PAGE>
 
                                                           Exhibit No.___(RWF-1)
                                                                 Page 31 of 100

     municipal system, three G&T cooperatives, and two municipal joint action
     agencies. The interconnections with EEI and TVA are via the same agreements
     which interconnect UE (and IP as well) with these entities. The seven IOUs
     are CE, CILCO, IP, Indiana Michigan Power Company (IM), NIPSCO, PSI and UE.
     IM is a subsidiary of AEP, while PSI is a subsidiary of CINergy. The
     municipal system is Springfield, IL, while the three G&T cooperatives are
     Southern Illinois Power Cooperative (SIPCO), Soyland Power Cooperative,
     Inc. (Soyland), and Wabash Valley Power Association (WVPA). The municipal
     joint action agencies are the Illinois Municipal Electric Agency (IMEA) and
     the Indiana Municipal Power Agency (IMPA).

     In addition to these direct interconnections, CIPS has a contractual
     interconnection with KU, just as does UE, by virtue of its role as one of
     EEI's Sponsors. However, this represents CIPS's only interconnection with
     KU and, accordingly, as stated above, KU does not represent a potential
     receipt and/or delivery point under the Ameren Tariffs.

     Finally, CIPS now has a limited purpose interconnection with IES, which
     does not allow scheduling of interchange transactions.  CIPS, however, is
     constructing new facilities which will give it a full purpose
     interconnection beginning in 1998.

Q.   IN WHAT RELIABILITY COUNCIL REGIONS ARE THE UTILITIES THAT ARE
     INTERCONNECTED WITH CIPS LOCATED?
<PAGE>
 
                                                           Exhibit No.___(RWF-1)
                                                                  Page 32 of 100

A.   They are located in MAPP to the west and north of CIPS, in ECAR to the east
     of CIPS, in SERC to the south and east, and in MAIN where both CIPS and UE
     operate. IES is located in MAPP; AEP, CINergy, KU, IMPA, NIPSCO and WVPA
     are located in ECAR; TVA is located in SERC; and all of the others (CE,
     CILCO, IMEA, SIPCO, Soyland, Springfield, IL and UE) are located in MAIN.

Q.   ARE THERE OTHER UTILITIES CONNECTED TO CIPS'S TRANSMISSION SYSTEM?
A.   Yes.  Within its control area CIPS has connections with the municipal
     systems serving in Greenup (3.3 megawatts peak) and Newton, Illinois (8.0
     megawatts peak), the Norris Electric Cooperative (61.2 megawatts peak) and
     Mt. Carmel Public Utility Company (Mt. Carmel), a small (40 megawatts peak)
     IOU.  Each of these systems purchases its full requirements from CIPS and
     operates as part of CIPS's control area.  None operates any of its own
     generation.  A portion of the load of both IMEA and Soyland also is
     included in CIPS's control area.

Q.   WILL THE MUNICIPAL AND COOPERATIVE SYSTEMS, AND MT. CARMEL, BE ELIGIBLE
     CUSTOMERS UNDER THE AMEREN TARIFFS?
A.   Yes.  The existing full requirements contracts under which Newton and
     Greenup are served extend until the later of July 1, 1996, and July 1,
     1999, respectively, or 18 months after notice to terminate is given.  The
     existing contract to serve the Norris Electric Cooperative extends until
     the later of July 1, 2007, or 36 months after notice to terminate is given.
     The existing contract to serve Mt. Carmel extends until the later of June
     30, 2001, or 12 months 
<PAGE>
 
                                                           Exhibit No.___(RWF-1)
                                                                  Page 33 of 100

     after notice to terminate is given. Soyland, IMEA and WVPA all purchase
     system participation power from CIPS, at formula rates, under long term
     power supply agreements. These give them the right to a contractually
     specified proportion of the output of each of CIPS's generating stations,
     which amount is different for each of the three agreements. The agreement
     with WVPA also provides for transmission service, but separate transmission
     service agreements are used to provide for delivery of the system
     participation power from CIPS to IMEA and Soyland. The existing power
     supply agreements under which Soyland and IMEA are served expire December
     31, 1999, and December 31, 2014, respectively. The existing transmission
     service agreements under which each of these two entities is served expire
     December 31, 2014. The existing agreement to supply bulk power and
     transmission service to WVPA terminates at the end of 2011. So long as they
     meet their obligations under their existing contracts, each of the above
     seven entities--Newton, Greenup, Mt. Carmel, the Norris Electric
     Cooperative, IMEA, Soyland and WVPA--will be an eligible customer under the
     Ameren Tariffs.

Q.   WHAT OTHER ENTITIES HAVE INTERCONNECTIONS WITH BOTH UE AND CIPS?
A.   Including the interconnection with IES which will be completed in 1998,
     there are five such entities (EEI, IES, IP, KU and TVA) as indicated by the
     bold type in Exhibit No.____(RWF-4).

Q.   WILL THE MERGER OF UE AND CIPS HAVE A SIGNIFICANT EFFECT UPON THESE FIVE
     ENTITIES' PARTICIPATION IN REGIONAL BULK POWER MARKETS?
<PAGE>
 
                                                           Exhibit No.___(RWF-1)
                                                                  Page 34 of 100

A.   No.  Although it is true that each of the utilities interconnected with
     both UE and CIPS will see a reduction in their number of directly
     interconnected trading partners postmerger, a circumstance which will occur
     to some extent with most any electric utility merger, each of the five
     still will have several other systems with which it can engage in purchase
     and sale transactions directly without wheeling over an intervening system.
     With the exception of EEI, Exhibit No. ___(RWF-5) identifies these
     postmerger interconnections for each of the utilities now interconnected
     with both merging partners.  For example, premerger TVA has 12
     interconnected trading partners, whereas postmerger it still will have 11.
     For IES, IP and KU, the postmerger numbers of interconnections are 8, 9 and
     10, respectively.  Figures this large should help mitigate concern about
     the merged entity's ability to exercise market power in generation markets.
     I am excluding EEI from this discussion because of my view, developed
     below, that it is not appropriate to view EEI as an independent participant
     in regional bulk power markets.

     Moreover, with the advent of open access transmission tariffs, the trading
     options for these utilities obviously need not be confined to directly
     interconnected utilities alone.  Both IES and IP will be able to use the
     Ameren Tariffs that are being filed simultaneously with this merger
     application to access any other utility directly interconnected with UE
     and/or CIPS to engage in wholesale bulk power transactions.  Both IES and
     IP also are directly interconnected with MEC, which has its own open access
     transmission tariffs.  Accordingly, they can access all entities
     interconnected with MEC just as easily as they can reach entities
     interconnected with UE or CIPS.  In some cases transmission under MEC's
<PAGE>
 
                                                           Exhibit No.___(RWF-1)
                                                                  Page 35 of 100

     open access tariffs would represent only an alternative transmission path
     to reach utilities also accessible under the Ameren Tariff, while in other
     cases it adds utilities not otherwise included in a "one wheel" market.
     IES also is a member of MAPP and, through the MAPP Agreement and
     accompanying service schedules, has the ability to exchange a variety of
     energy and capacity services with each of the other 27 MAPP members, even
     if not directly interconnected with them.  As discussed above, KU cannot be
     accessed under the merged entity's open access transmission tariffs, but
     both it and IP are directly interconnected with AEP and can use AEP's open
     access transmission tariff to access all entities interconnected with AEP.
     This is a very large list including, among others, Allegheny Power System,
     Carolina Power & Light Company, Centerior Energy Corporation, CE, Consumers
     Power Company, Duke Power Company, Ohio Edison Company, and Virginia
     Electric & Power Company (VEPCO).  KU also is interconnected with PSI and
     therefore can use CINergy's open access tariff to trade with entities
     accessible via that tariff.  Other utilities, of course, also will file
     open access transmission tariffs in the future if FERC's NOPR is
     implemented in anything close to its current format, and maybe even if it
     is not.

     TVA will be able to use the merged firm's open access tariffs to engage in
     purchase, but presumably not sales, transactions.  It also can use the
     existing open access tariffs of other utilities with which it is directly
     interconnected, e.g., AEP, Entergy, KU and IP, for a similar purpose.
<PAGE>
 
                                                           Exhibit No.___(RWF-1)
                                                                  Page 36 of 100

Q.   WHY  DO YOU PRESUME THAT TVA WILL BE UNABLE TO USE THE MERGED FIRM'S OPEN
     ACCESS TARIFFS TO ENGAGE IN SALES TRANSACTIONS?
A.   It is my understanding that legislation passed by Congress in 1959--the
     1959 Self-Financing Amendment to The TVA Act of 1933--created a "fence"
     around TVA which restricted its power marketing activities.  Among other
     things, the fence prevents TVA from making power sales to any entity other
     than those with which it had interchange arrangements as of July 1, 1957.
     These entities include both CIPS and UE as well as EEI and the other EEI
     Sponsors (IP and KU).  Accordingly, I presume that, unless this legislation
     is changed, TVA would be unable to use the open access tariff of the merged
     firm, or of anyone else, to sell electricity directly to any entity that is
     not among those with which it had interchange arrangements as of July 1,
     1957.

Q.   DO YOU HAVE ANY SPECIFIC EVIDENCE INDICATING THAT ELECTRICITY TRANSMITTED
     OVER THE MERGED FIRM'S TRANSMISSION SYSTEM WILL BE ECONOMICALLY ATTRACTIVE
     TO WOULD-BE BUYERS IN COMPARISON TO DIRECT PURCHASES FROM AN UNMERGED UE OR
     CIPS DIRECTLY?
A.   Yes.  Most of the interchange sales made by both UE and CIPS in recent
     years--e.g., excluding sales to requirements customers and CIPS's system
     participation sales--have been supported by simultaneous interchange
     purchases.  For UE, for the time period January 1, 1993, to May 31, 1995,
     66.5 percent of its interchange sales have fallen into this category.  For
     CIPS, for the time period from January 1, 1993, to August 31, 1995, 60.4
     percent of its interchange sales have fallen into this category.  For these
     simultaneous buy-and-sell transactions, which in some respects are
     analogous to wheeling, buyers apparently 
<PAGE>
 
                                                           Exhibit No.___(RWF-1)
                                                                  Page 37 of 100

     have found it economic to procure power remotely and pay for losses and
     implicit wheeling fees across the intervening (UE or CIPS) system.
     Postmerger, many buyers' (and sellers') options ought to be improved
     because, rather than relying on either CIPS or UE to arrange such
     transactions, they--or marketers seeking to sell to (or buy from) them--
     will be able to use the merged firm's (single system) open access
     transmission to ferret out their own deals.

Q.   YOU INDICATED ABOVE THAT EACH OF THE ENTITIES INTERCONNECTED WITH BOTH UE
     AND CIPS STILL WILL HAVE SEVERAL OTHER DIRECT INTERCONNECTIONS POSTMERGER.
     HAVE YOU CONSIDERED THE RELATIVE IMPORTANCE OF THE INTERCONNECTIONS WITH
     ENTITIES OTHER THAN THE MERGING PARTIES?
A.   Yes.  I considered the possibility that these other interconnections might
     exist but not actually be used as extensively as the interconnections with
     UE and CIPS.  This could be the case if significant transmission
     constraints existed which prevented such use, if entities on the other side
     of the interconnections did not have economic supplies available for sale,
     or if entities on the other side of the interconnections did not represent
     good markets.  If these conditions existed, the affected firms might be
     forced to deal only with UE and CIPS in bulk power markets, and so a merger
     of the two potentially could have more severe consequences.  However, this
     does not appear to be the case.

Q.   PLEASE EXPLAIN.
<PAGE>
 
                                                           Exhibit No.___(RWF-1)
                                                                  Page 38 of 100

A.   Exhibit ___ (RWF-6) shows, for each of the four entities other than EEI
     which are interconnected with both UE and CIPS, their total interchange
     sales and purchases for the time period 1991-1994--except for TVA where the
     time period covered is 1992-1994--as well as the percentage of each
     accounted for by transactions with UE and CIPS.  Sales to these entities by
     UE and CIPS accounted for at most 16.3 percent of all sales made to these
     entities by all parties.  UE and CIPS accounted for at most 31.5 percent of
     total purchases from any of these entities.  In short, it is apparent that
     each of these four systems has not been restricted to dealing with just UE
     and/or CIPS for their wholesale bulk power transactions.  Their other
     interconnections have been used for wholesale bulk power transactions far
     more extensively than the interconnections with UE and CIPS.
 
Q.   DO YOU HAVE ANY ADDITIONAL INFORMATION ON THIS TOPIC?
A.   Yes.  In her testimony, Ms. Borkowski reports on her examination of
     publicly available data concerning transfer capabilities between these
     systems and their neighbors and concludes that significant quantities of
     unused transfer capability are projected to exist.  Thus, both the
     historical data on actual transactions contained in Exhibit ___ (RWF-6) and
     Ms. Borkowski's review of projected transmission availability indicate that
     directly interconnected entities have practical bulk power trading
     alternatives available to them other than dealing with the merged entity.

Q.   YOU INDICATED ABOVE THAT IT IS NOT APPROPRIATE TO VIEW EEI AS AN
     INDEPENDENT PARTICIPANT IN REGIONAL BULK POWER MARKETS.  WHY IS THAT?
<PAGE>
 
                                                           Exhibit No.___(RWF-1)
                                                                  Page 39 of 100

A.   EEI acts as both a generator and a reseller.  In its role as a generator,
     energy and capacity from the Joppa Plant are sold under contract to USEC
     and Sponsors.  EEI can make sales to entities other than USEC or Sponsors
     only to the extent that USEC and Sponsors decline to take their full
     entitlements.  In recent years, because the energy has been priced very
     favorably for sales to USEC and Sponsors, there has been very little
     available for sales to others.  TVA is the only other entity now with
     contractual arrangements in place to make such purchases but during the
     last two years has purchased less than two gigawatt-hours from EEI.  This
     constitutes less than one-hundredth of one percent of EEI's total sales of
     approximately 29,000 gigawatt-hours during these two years.  The remainder
     has been sold to USEC and Sponsors.  Thus, from a practical standpoint, EEI
     does not generate energy that is sold to others in competitive bulk power
     markets.

     In its role as a reseller, EEI supplies nonfirm energy only to USEC,
     usually for weekly, monthly or longer term blocks.  This nonfirm energy is
     bid to it by Sponsors who in turn may be reselling energy purchased from
     others and, at least in the case of UE and CIPS, are likely to be reselling
     energy purchased from others.  EEI combines the bids of Sponsors, adds a
     markup of up to one mill per kilowatt hour, and then offers what is in
     effect a supply curve to USEC in 50 megawatt increments.  That supply curve
     may compete with another supply curve offered by TVA.  However, while there
     is competition with TVA to meet USEC's nonfirm energy requirements, the
     real competition is between TVA and those who directly and indirectly
     supply EEI, and not between TVA and EEI.  Moreover, it is my understanding
     that USEC has the ability to, and does, vary its production schedules by
     time 
<PAGE>
 
                                                           Exhibit No.___(RWF-1)
                                                                  Page 40 of 100

     period according to the energy prices which are offered to it. So at any
     point in time individual suppliers are competing not only with the prices
     which other suppliers offer them, but also with the prices that USEC
     believes will be forthcoming in the future.

Q.   HOW WILL THIS COMPETITION CHANGE IN THE FUTURE?
A.   There will be two principal changes.  First, as a result of the merger, UE
     and CIPS presumably no longer will bid separately to supply components of
     the package which EEI offers to USEC, but will bid as one.  Standing alone,
     this could be viewed as a lessening of competition, although it must be
     remembered that IP and KU still can bid in competition with the merged firm
     to fill EEI's package and that TVA can bid in competition with EEI to meet
     USEC's nonfirm energy needs.  TVA has been the largest supplier of USEC's
     nonfirm energy needs recently, supplying 55 percent of the total since the
     beginning of 1995.  The energy supplied by TVA, of course, may have been
     purchased from others (as is true for most of UE's and CIPS's sales), but I
     am not aware of any publicly available data source that could document the
     extent of this.  Second, the merged firm will have filed an open access
     tariff which will allow any eligible customer to package together nonfirm
     energy supplies to sell to EEI.  This suggests an expansion of the number
     of entities that can compete to supply the ultimate needs of USEC.

Q.   HAVE YOU CONSIDERED WHETHER, POSTMERGER, EEI WILL TEND TO FAVOR PURCHASES
     FROM THE MERGED FIRM INSTEAD OF PURCHASES FROM OTHER SUPPLIERS?
<PAGE>
 
                                                           Exhibit No.___(RWF-1)
                                                                  Page 41 of 100
 
A.   This does not seem like a significant concern.  My presumption is that EEI
     will seek to procure the lowest priced energy which it can without regard
     to source.  The availability of the Ameren Tariffs, as well as the open
     access tariffs of IP and KU, will enable other utilities and marketers to
     reach EEI by those tariffs.  Moreover, both Mr. Rainwater for UE and Mr.
     William A. Koertner for CIPS testify that their firms will not interfere
     with the discretion of EEI to procure power competitively from other
     sources and will encourage the other EEI owners to allow this.

     C. TRANSMISSION OVERLAPS
        ---------------------

Q.   ARE UE AND CIPS ACTUAL OR POTENTIAL COMPETITORS FOR THE SUPPLY OF
     TRANSMISSION SERVICES BETWEEN UTILITIES THAT ARE DIRECTLY INTERCONNECTED
     WITH BOTH?
A.   For the most part, no.  UE is located to the west of CIPS, and the two
     transmission systems do not overlap in the sense that they represent
     alternative paths between specified points of receipt and specified points
     of delivery. However, I have already indicated that, excluding EEI (for the
     reasons discussed above), there are four utilities that today are or by
     1998 will be  interconnected with both merging parties.  These four are
     IES, IP, KU, and TVA.  In principle the merger could combine into a single
     entity transmission paths for transactions between particular pairs of
     these four entities.
 
Q.   DOES THE MERGER THEREFORE PRESENT COMPETITIVE CONCERNS BECAUSE IT WILL
     COMBINE UNDER COMMON OWNERSHIP POTENTIALLY COMPETING TRANSMISSION PATHS?
<PAGE>
 
                                                           Exhibit No.___(RWF-1)
                                                                  Page 42 of 100

A.   No.  The principal reason is that a more complete analysis of the effects
     of the proposed merger on bulk power markets will focus upon all options
     available to sellers and buyers and how those options might be affected by
     a merger, rather than focusing upon only the subset of options represented
     by individual transmission paths between two or just a few utilities.  When
     the market is defined correctly to incorporate all of these options,
     concerns about a potential lessening of competition vanish.  In the case of
     IES, additional options include, at a minimum, transacting with any of the
     eight parties with which it is interconnected or transacting with any of
     the additional parties that it can reach under Ameren's proposed open
     access tariff.  IES's options also include transacting with parties
     accessible under MEC's existing open access transmission tariff, and
     transactions which it can arrange through its MAPP participation.  In the
     cases of IP, KU and TVA, those additional options include transacting with
     any of the 9, 10 and 11 parties, respectively, with which they are
     interconnected. Additional options available to IP and KU include using the
     merged firm's transmission tariffs to facilitate transactions with
     additional entities or using existing open access tariffs of other entities
     with which they are directly interconnected (e.g., MEC's or AEP's tariff
     for IP and the PSI/CINergy, AEP and Louisville Gas and Electric Company
     tariffs for KU).  TVA also can use the merged firm's open access tariff and
     those of other entities directly interconnected with it (e.g., AEP and
     Entergy) to make bulk power purchases but, presumably, because of the
     "fence," not to make bulk power sales.  I have already discussed Exhibit
     __(RWF-6), which indicates that the other interconnections of IES, IP, KU
     and TVA do provide them with significant trading opportunities other than
     dealing with just UE and CIPS.  Another way of stating
<PAGE>
 
                                                           Exhibit No.___(RWF-1)
                                                                  Page 43 of 100

     this general point is that transmission service between various
     combinations of IES, IP, KU and TVA does not, by itself, represent a
     distinct relevant market for purposes of assessing the competitive effects
     of this merger. Such a market definition is too narrow, because origin area
     sellers and destination area buyers both have numerous alternatives
     available to them besides transmission over the merged entity's system. A
     proper relevant market definition will incorporate these alternatives.

     I note also that each of IP, KU and TVA is interconnected with each of the
     other two.  IP and KU are interconnected with each other (and with EEI, UE
     and CIPS) via the Sponsors-EEI agreement described earlier.  IP is
     interconnected with TVA (and with UE and CIPS) via the Interconnection
     Agreement between TVA and the Ill-Mo Pool members which I referred to
     earlier.  KU has its own direct interconnection with TVA.  Accordingly, if
     any of these three entities wish to transact with any of the others, almost
     certainly they will do so via their own contractual paths rather than
     paying extra to wheel over a third party system, whether that third party
     is UE or CIPS on a stand-alone, premerger basis or Ameren on a postmerger
     basis.  The merger of UE and CIPS therefore takes away an independent
     transmission alternative from these entities only to the extent that their
     own direct interconnections are not sufficient to accommodate the bulk
     power transactions they desire to undertake.

Q.   DO YOU HAVE ANY ADDITIONAL COMMENTS ON THIS TOPIC?
<PAGE>
 
                                                           Exhibit No.___(RWF-1)
                                                                  Page 44 of 100

A.   Yes.  The prices at which transmission service is provided are regulated
     precisely because it is believed that transmission is a natural monopoly.
     The concern is that, without regulation, prices would be "too high."
     Parallel path competition among alternative transmission suppliers can
     cause prices to fall below just and reasonable prices and, in effect, shift
     the fixed cost burdens of supporting the transmission system to customers
     that are not able to benefit from such competition.  Because electrons flow
     according to laws of physics and not according to contractual
     relationships, the costs that any one transmission owner will incur when a
     wheeling transaction takes place are independent of whether or not it
     receives revenues as part of the contractual path supporting the wheeling
     transaction.  Accordingly, where parallel path competition is possible, the
     individual transmission owner will be motivated to bid far below its just
     and reasonable price in order to receive at least some revenue from the
     wheeling transaction if the facilities which it owns could comprise a
     contractual path.  If it fails to do so it will receive no revenues but
     incur the same costs that it will incur if some other transmission owner
     underbids it and becomes part of the contract path.  When the price for
     transmission service drops as a result of this phenomenon, other users,
     through the ratemaking process, will be forced to bear a higher proportion
     of the fixed cost burdens of transmission assets.  There are no obvious
     economic efficiency benefits associated with this type of competition and,
     accordingly, I do not believe that its preservation, where it exists,
     should form a significant consideration for assessing the proposed merger
     of UE and CIPS.

Q.   WHAT DO YOU CONCLUDE ABOUT THE EFFECT OF THE MERGER ON CONTROL OF
     TRANSMISSION?
<PAGE>
 
                                                           Exhibit No.___(RWF-1)
                                                                  Page 45 of 100

A.   As is true with any merger, it is axiomatic that a merger of UE and CIPS
     will reduce by one the number of independent participants at least
     potentially capable of providing service.  However, this reduction does not
     create competitive concerns relating to the merged entity's control of
     transmission.  One reason is that the transmission systems of UE and CIPS
     do not overlap and therefore for the most part do not represent potentially
     competing transmission paths.  A second reason is that each potentially
     affected party postmerger still will have numerous other independent
     trading alternatives available, including use of its own direct
     interconnections.  Data on past transactions indicate that these
     interconnections with other parties are used for interchange transactions
     much more extensively than are these utilities' interconnections with UE
     and CIPS.  Finally, regional utilities (and marketers) will have the
     opportunity to engage in bulk power transactions using the merged firm's
     open access transmission tariff (and the open access tariffs of several
     other utilities which already have been filed at FERC) at rates, terms and
     conditions determined by FERC to be appropriate.  In actuality, the merger,
     as a result of the open access transmission tariff which the Applicants are
     filing, will expand the bulk power alternatives available to all but a few
     regional utilities because it will increase the number of trading partners
     that they can reach via payment of a single wheeling fee.

V.   BULK POWER

Q.   PLEASE DESCRIBE YOUR APPROACH TO DEFINING BULK POWER MARKETS.
<PAGE>
 
                                                           Exhibit No.___(RWF-1)
                                                                  Page 46 of 100

A.   Ultimately electric utilities are seeking to assemble a low cost firm power
     supply for resale to their customers. There are a variety of components
     that can be packaged together to achieve this goal. These components
     include generating resources which utilities construct and operate
     themselves as well as very long term (perhaps life-of-unit) purchases such
     as many utilities have made from nonutility generators (NUGs)/2/ in recent
     years. Owned or purchased resources can take many forms, differing by fuel
     type, size, technology and mode of operation (peaking versus baseload),
     among other things. The components used to assemble a low cost firm power
     supply also include a variety of shorter term bulk power purchases that
     generating utilities engage in to improve the economics of dispatch,
     enhance reliability and/or correct short term capacity imbalances. Examples
     include economy energy, term energy, emergency and scheduled outage energy,
     seasonal participation power, short term capacity and energy of various
     durations, peaking power and others. In recent years demand-side management
     (DSM) measures also have become increasingly important components available
     to utilities.

     These various components can be substituted for one another to varying
     degrees. For example, a utility with an approaching capacity deficiency may
     elect to buy under a long term contract from a NUG (or other utility) in
     the marketplace instead of building its own new generation capacity. It
     also may seek to purchase capacity from others on a short term

- --------------------
/2/  I use the NUG term to refer to all such nontraditional suppliers including
     Qualifying Facilities, Exempt Wholesale Generators, and others. I recognize
     that in some cases NUGs defined in this fashion actually may be owned by
     affiliates of traditional utility suppliers.
<PAGE>
 
                                                           Exhibit No.___(RWF-1)
                                                                  Page 47 of 100


     basis to delay the point in time at which new capacity must be constructed
     or purchased on a longer term basis. The substitution is also very direct
     when a utility elects to purchase economy energy from another supplier
     rather than generating additional output from its own units.

     Thus, alone or in combination, these various components are substitutable
     with one another in the development of the firm bulk power package which
     utilities require for sale to their customers. Because of this
     substitutability, one approach for defining relevant markets would be to
     include all of these separate components (including DSM and self-
     generation) in the same relevant market within which the competitive
     effects of the proposed merger would be examined. Such an approach would
     include relatively disparate components (e.g., economy energy and
     construction of a new baseload generating station) that obviously are not
     directly substitutable. Another approach would be to examine multiple
     groupings of products where each such grouping is more compact and
     homogeneous. This is the approach utilized below.

Q.   WHAT RELEVANT BULK POWER MARKETS HAVE YOU EXAMINED?
A.   Consistent with previous merger and market power investigations before
     FERC, I have examined whether the proposed merger would create or increase
     market power in the following three bulk power markets: (i) short term
     capacity; (ii) long term capacity; and (iii) nonfirm energy. The usual
     distinction between short and long term capacity is that the former
     generally excludes sales from capacity not yet in commercial operation
     (unless the
<PAGE>
 
                                                           Exhibit No.___(RWF-1)
                                                                  Page 48 of 100

     date for commercial operation is very near), whereas the time period for
     the latter extends far enough into the future that new capacity can be
     constructed to compete for the sale. Long term capacity also can include
     purchases made out of existing surpluses where those surpluses are expected
     to extend well into the future. Options for obtaining long term capacity
     generally include the construction of new generating units, life extension
     of existing units, the purchase of long term (perhaps life-of-unit)
     interests in units to be constructed by others and purchases from existing
     surpluses that are expected to be long-lived. Options for short term
     capacity consist predominantly of purchases from the surpluses that other
     in-region or nearby utilities hold.

     Nonfirm energy and other closely substitutable interchange transactions are
     transactions that generating utilities engage in principally to improve the
     economics of dispatch. Although I use the expression nonfirm energy to
     describe this market, many of the types of transactions which are included
     actually are styled as relatively short term capacity and energy
     transactions. An example would be daily or weekly capacity that one utility
     might sell to another, not because the buyer was short of capacity, but
     rather because it wished to receive (and was willing to pay for) the low
     cost energy associated with the purchased capacity. Paying the demand
     charge for the capacity and receiving the low cost energy associated with
     it may be more economical for the buyer than operating its own higher fuel
     cost units. This is the same reason that a party would purchase economy (or
     another form of nonfirm) energy, i.e., to reduce the need to generate from
     its own higher cost units.
<PAGE>
 
                                                           Exhibit No.___(RWF-1)
                                                                  Page 49 of 100

Q.   ARE THERE DISTINCT BOUNDARIES FOR EACH OF THESE THREE RELEVANT BULK POWER
     MARKETS?
A.   No.  Because of substitutability among components, the boundaries between
     these three separate relevant markets can blur. Moreover, as defined above,
     some potentially close substitutes (e.g., DSM measures or self-generation
     as an alternative to purchased economy energy) are excluded when, if they
     are price competitive, they ought to be included.

Q.   ARE THERE GENERAL CONSIDERATIONS WHICH FIGURE INTO YOUR ANALYSES OF BULK
     POWER MARKETS IN THIS CASE?
A.   Yes.  There are several considerations which suggest on an a priori basis
     that a merger between UE and CIPS is not a merger likely to create or
     enhance market power in bulk power markets. The merging partners comprise
     only a small portion of aggregate generating capability in the region (6.5
     percent), where "region" in this sense is defined to include all utilities
     interconnected with at least one of them. Utilities interconnected with
     both merging parties have numerous alternative trading partners. Bulk power
     markets in this area historically have been competitive. Several utilities
     interconnected with either UE or CIPS (e.g., CE, CILCO, KCPL, KU, IP, MEC,
     WR, Entergy, CSW, AEP and CINergy) already have filed open access tariffs
     and presumably more will in the future, either voluntarily or as a result
     of FERC's NOPR. Finally, as discussed, Applicants are filing a consolidated
     (single system) open access transmission tariff which can allay residual
     concerns about the creation of market power in wholesale bulk power
     markets.
     
     A. SHORT TERM CAPACITY
        -------------------
<PAGE>
 
                                                           Exhibit No.___(RWF-1)
                                                                  Page 50 of 100

Q.   I WOULD LIKE TO BEGIN WITH THE EFFECTS OF THE MERGER ON THE SHORT TERM
     CAPACITY MARKET.  PLEASE REPEAT YOUR DESCRIPTION OF THE PRODUCT WHICH IS
     TRADED IN THIS MARKET.
A.   Short term capacity refers to purchases and sales of firm power over time
     periods too short to allow new construction to compete for those
     transactions. Utilities can supply short term capacity to others when their
     own generating resources exceed those required to serve their native load
     customers reliably and fulfill existing contractual commitments. They can
     also act as marketers and resell short term capacity that they have
     purchased from others. There is no precise number of years that demarcates
     short term from long term, although, except for peakers, it seems unlikely
     that significant quantities of new capacity could be brought on line in
     less than four years.

Q.   HOW WILL THE MERGER AFFECT THE NUMBER OF COMPETITORS SELLING SHORT TERM
     CAPACITY?
A.   Both UE and CIPS actively seek to market capacity to other nearby utilities
     and therefore are direct competitors. In addition to UE and CIPS, there are
     also many other in-region utilities that can market capacity to others.  So
     while the merger will reduce the number of competitors in the area by one,
     many others still will remain.  Moreover, as indicated previously, the
     implementation of the single system (combined UE and CIPS) open access
     tariff should enhance opportunities for others (including marketers) that
     wish to compete.

     More fundamentally as concerns an analysis of this merger, UE's ability to
     compete in short term capacity markets is limited because of its very small
     (or nonexistent, depending upon how it is measured) quantity of uncommitted
     capacity.   Realistically, UE competes 
<PAGE>
 
                                                           Exhibit No.___(RWF-1)
                                                                  Page 51 of 100

     in short term capacity markets today principally by using capacity
     purchased from one utility to support sales to another and not by making
     capacity sales out of its own uncommitted generation. In that sense it is
     acting as a marketer of capacity owned or otherwise controlled by others.
     CIPS also seeks to undertake these types of buy-and-resell transactions,
     although CIPS also has some uncommitted capacity of its own which it seeks
     to sell. Ease of entry is one of the most important factors to consider in
     assessing whether a proposed merger is likely to create concerns about
     market power. Where entry is relatively easy, such concerns should vanish.
     With the advent of open access transmission tariffs, entry by those who
     would market electric capacity on a buy-and-resell basis, as do both UE and
     CIPS, is relatively easy. It requires access to those transmission tariffs,
     knowledge of supply and demand sources, and perhaps an ability to recognize
     various types of risk and provide mechanisms to hedge these, but it does
     not require the types of large capital investments in generation or
     transmission plant that in the past might have been used to argue that
     entry was difficult. In short, there are potentially many entities that
     could compete with UE or CIPS, or a merged UE/CIPS, in the marketing of
     capacity on a simultaneous buy-and-resell basis, and so a merger of UE and
     CIPS will not have a significant effect on the number of competitors.
     Stated differently, with so many open access transmission tariffs in the
     region, power marketing does not possess the characteristics of an activity
     where there are likely to be realistic concerns about the exercise of
     market power.

Q.   PLEASE DESCRIBE THE LOAD AND RESOURCE POSITION OF UE AND CIPS.
<PAGE>
 
                                                           Exhibit No.___(RWF-1)
                                                                  Page 52 of 100

A.   UE forecasts a peak demand of 7,199 megawatts for summer 1996--both UE and
     CIPS are summer peaking--and expects to have available 8,385 megawatts of
     owned and purchased generating capacity to serve that demand. UE uses a
     reserve margin of 18 percent for purposes of planning new resources but a
     lower reserve margin of 15 percent for shorter term planning, up to
     approximately one year. Based upon the 18 percent reserve margin, UE
     therefore projects a deficit of 110 megawatts for summer of 1996. Based
     upon the 15 percent reserve margin, UE projects surplus or uncommitted
     capacity of 106 megawatts for summer 1996. UE's Preferred Resource Plan
     shows that its requirements for additional resources through the year 2000
     can be met by a combination of purchases from others, improvements at
     existing plants, and DSM. It does not show requirements for additional
     supply side resources until 2001, when the first of several 75 megawatt
     combustion turbines is now projected to come on-line.

     CIPS forecasts a peak demand of 2,261 megawatts for summer of 1996
     consisting of native load (retail plus full requirements wholesale) demands
     of 1,941 megawatts and reserved committed sales to other utilities of 320
     megawatts. After netting its 271 megawatts of long term system
     participation sales to Soyland, IMEA and WVPA, CIPS expects to have
     available 2,766 megawatts of resources to meet that demand. CIPS's Electric
     Energy Plan uses an 18 percent reserve margin for planning purposes but, as
     is true for UE, it also is CIPS's policy to go below this level to 15
     percent for shorter term planning purposes. Based upon the 18 percent
     figure, CIPS therefore forecasts 98 megawatts of uncommitted capacity for
     the summer of 1996. Using a lower reserve margin figure of 15 percent,
<PAGE>
 
                                                           Exhibit No.___(RWF-1)
                                                                  Page 53 of 100

     CIPS's uncommitted capacity rises to 166 megawatts for the summer of 1996.
     In its most recent load and resource plan, CIPS's "most probable" or base
     case scenario indicated no need for new supply or demand-side resources
     throughout the 1996-2016 study period.

Q.   DO OTHER IN-REGION UTILITIES EXPECT TO HAVE UNCOMMITTED CAPACITY DURING
     THIS SAME TIME PERIOD?
A.   Yes.  Exhibit No. ___(RWF-7) shows the uncommitted capacity for UE, CIPS
     and each other entity directly interconnected with either of them for 1996.
     Total uncommitted capacity for all of these entities is 2,856 megawatts.
     Using its 18 percent planning reserve margin, CIPS's share of this total is
     3.4 percent.  Using its 18 percent planning reserve margin, UE, as
     indicated, has no uncommitted capacity.

Q.   WHAT DO YOU CONCLUDE FROM EXHIBIT ___ (RWF-7)?
A.   My principal conclusion is that, because UE has no uncommitted capacity
     when that term is defined with respect to its 18 percent planning reserve
     margin, this is not a merger that can increase the concentration of
     uncommitted capacity in the region. Accordingly, to the extent that
     concentration of uncommitted capacity is a useful measure for assessing the
     ability to exercise market power in short term capacity markets, the merger
     of UE and CIPS obviously is not one which presents concern.

Q.   WHAT RESERVE MARGINS HAVE YOU USED TO DETERMINE THE AMOUNT OF UNCOMMITTED
     CAPACITY HELD BY UTILITIES OTHER THAN UE AND CIPS IN PREPARING EXHIBIT ___
     (RWF-7)?
<PAGE>
 
                                                           Exhibit No.___(RWF-1)
                                                                  Page 54 of 100

A.   I have used 18 percent for all of the utilities but one, although the
     reason I have done so differs among utilities. The SPP generally requires
     its members to hold a minimum capacity margin--total capacity less peak
     demand divided by total capacity--of 15.25 percent. A capacity margin of
     15.25 percent translates into a reserve margin--total capacity less peak
     demand divided by peak demand--of 18 percent. MAPP requires that its
     members hold a reserve margin of 15 percent at the time of actual system
     peak. Because penalties apply if this level is not achieved, it is my
     understanding that at least some MAPP members, on a planning basis, choose
     to hold reserves above this level in order to protect against peaks
     resulting from unusual weather conditions. For this reason I believe that a
     number greater than 15 percent is appropriate for MAPP utilities. For
     utilities in MAIN other than UE and CIPS, I have used an 18 percent reserve
     margin as the minimum figure of the 18 to 22 percent range recommended by
     MAIN's executive committee, as well as one which is consistent with the
     levels I use for UE and CIPS which also are MAIN members. ECAR and TVA do
     not set minimum planning reserve margins. Accordingly, for utilities in
     ECAR and for TVA the 18 percent reserve margin represents a "default"
     value. The only utility that I have not used an 18 percent reserve margin
     for is SPA, which is a member of the SPP and directly interconnected with
     UE. For hydroelectric-based systems, of which SPA is one, the SPP allows
     its members to have capacity margins as low as 9 percent. A capacity margin
     of 9 percent translates into a reserve margin of 9.9 percent, which is the
     reserve margin I use for SPA.
<PAGE>
 
                                                           Exhibit No.___(RWF-1)
                                                                  Page 55 of 100

Q.   HOW WOULD THE FIGURES IN EXHIBIT ___ (RWF-7) CHANGE IF YOU USED THE LOWER
     15 PERCENT RESERVE MARGIN WHICH UE AND CIPS USE FOR TIME PERIODS EXTENDING
     LESS THAN ONE YEAR INTO THE FUTURE?
A.   That information is shown in Exhibit ___ (RWF-8). For consistency in
     preparing this exhibit, I have lowered the reserve margins of not only UE
     and CIPS but also of the other utilities (except SPA where the 9.9 percent
     reserve margin is unchanged). Thus, in this context, I am assuming that
     just as UE and CIPS would be willing to drop below their 18 percent
     planning reserve margins to facilitate short term sales that extend no more
     than one year into the future, so too would other in-region utilities. With
     the lower reserve margin, stand-alone UE shows surplus or uncommitted
     capacity of 106 megawatts or 1.7 percent of the total held by UE, CIPS and
     all directly interconnected utilities. With the lower reserve margin,
     stand-alone CIPS shows surplus or uncommitted capacity of 166 megawatts or
     2.6 percent of the total held by UE, CIPS and all directly interconnected
     utilities. The postmerger share of Ameren is 4.2 percent.

Q.   WHAT DO YOU CONCLUDE FROM EXHIBIT ___ (RWF-8)?
A.   Exhibit ___ (RWF-8) indicates that UE does have some uncommitted capacity
     when the lower 15 percent reserve margin is used, and therefore that,
     because CIPS also has some uncommitted capacity, the merger will increase
     concentration of uncommitted capacity in the region.  However, the combined
     postmerger share of UE and CIPS, 4.2 percent, is relatively small and far
     below the 20 percent level which FERC in the past has used as a threshold
     to demarcate situations that obviously present no concern about market
     power.  
<PAGE>
 
                                                           Exhibit No.___(RWF-1)
                                                                  Page 56 of 100

     Moreover, both Exhibits ___ (RWF-7) and ___(RWF-8) include uncommitted
     capacity only from the merging partners and utilities directly
     interconnected with one or both of them. Almost certainly this is too
     narrow of a relevant market within which to assess the effects of the
     proposed merger, because it does not include supplies that other utilities,
     not directly interconnected with either of Applicants, could make available
     to would-be purchasers. Because the merging parties control only relatively
     small shares of uncommitted capacity when the computations incorporate only
     a subset of potential suppliers, it necessarily follows that their combined
     shares would be even lower if the market were appropriately broadened to
     incorporate additional supplies that could be made available.

Q.   WHAT DATA SOURCES DID YOU USE TO DEVELOP EXHIBITS ___ (RWF-7) AND ___ (RWF-
     8)?
A.   Data required to prepare Exhibits ___ (RWF-7) and ___ (RWF-8) include peak
     demands, total generating capacity, and reserve margins for each utility.
     Data on total generating capacity generally come from the OE-411 reports of
     the regional reliability councils in which the utilities are located (i.e.,
     ECAR, MAIN, MAPP, SERC and SPP) and, in some cases (including UE and CIPS),
     from individual company load and resource reports. I used data from
     individual firm load and resource reports for UE and CIPS because it was
     more recent than that contained in MAIN's OE-411 report. Where
     identifiable, I added to total generating capacity the capacity of units in
     cold storage or inactive reserve if they were not already included. The
     rationale for this adjustment is that such units presumably could be made
     available to the marketplace if a firm that possesses market power sought
     to exercise
<PAGE>
 
                                                           Exhibit No.___(RWF-1)
                                                                  Page 57 of 100

     it by restricting capacity and raising price. Data concerning peak demands
     come from the same source as the total generating capacity data. Reserve
     requirements were determined as described above. For utilities that are
     winter peaking, I used forecast data for the winter 1995-1996 time period;
     for utilities that are summer peaking, I used forecast data for summer
     1996. Committed sales to other utilities were treated either as reductions
     in determining total generating capacity or as increases to peak demand,
     depending upon the nature of the sale and its treatment in the underlying
     raw data source. Finally, CSW has two subsidiaries which operate in the SPP
     and two which operate in the Electric Reliability Council of Texas (ERCOT)
     region. Because ERCOT is not connected synchronously with SPP or other
     regions, the data which I use for CSW reflects only its SPP operations.
     However, supplies from the ERCOT companies are available to the SPP
     companies over DC interconnections. Had I included CSW's ERCOT companies in
     my analysis also, the measured shares for CIPS and UE would be lower than I
     have shown.

Q.   HAVE YOU DEVELOPED ADDITIONAL INFORMATION WHICH ADDRESSES THIS TOPIC?
A.   Yes. I have examined how the merger affects concentration of uncommitted
     capacity in various "first tier" markets as that expression has come to be
     used. It is the first tier utilities connected to Applicants that, at least
     in principle, are most likely to see their market opportunities altered by
     the proposed merger. This is the type of analysis which FERC previously has
     used in situations where market power was a potential concern.

Q.   WHAT IS A FIRST TIER MARKET?
<PAGE>
 
                                                           Exhibit No.___(RWF-1)
                                                                  Page 58 of 100

A.   A first tier utility is a utility that is directly interconnected with UE
     or CIPS or both. The "market" for each first tier utility, at a minimum,
     consists of UE or CIPS or both, as appropriate, plus all other entities
     with which the first tier is directly interconnected. It also has become
     standard to include in such first tier markets utilities that are "one
     wheel" away by virtue of an open access tariff that has been filed by
     whatever firm is subject to the market power investigation at hand; in this
     case, Ameren.

     Consider the simple example shown on page one of Exhibit ___(RWF-9) where
     the circled letters represent utilities, and the lines represent
     interconnections between them. A and B propose to merge. First tier
     utilities for A are F, G, H and, of course, B. First tier utilities for B
     are C, D, E, F, H and, of course, A. The market for each first tier utility
     consists of all entities with which it has direct interconnections. For
     example, the first tier market for G consists of A, F, H, K and L.
     Moreover, because G is interconnected with only one of the merging
     partners, A, and not the other, B, its first tier market essentially is
     unchanged by the merger of A and B. There are five entities with which it
     can directly transact with or without a merger. This is not the case for F,
     which is interconnected with both A and B. Premerger there are five
     entities with which it can transact through direct interconnections (A, B,
     E, G and L), whereas postmerger there are only four (merged A-B, E, G and
     L). The previous discussion does not incorporate the effects of an open
     access transmission tariff that A and B might file, which could expand the
     trading opportunities for first tier utilities. For example, for F they
     would now include merged A-B, E, G and L, as discussed above, but also C, D
     and H. Page two of Exhibit ___ (RWF-9) shows how the various first tier
<PAGE>
 
                                                           Exhibit No.___(RWF-1)
                                                                  Page 59 of 100

     markets change as a result of an A-B merger and the merging parties' filing
     of an open access transmission tariff.

Q.   IS IT APPROPRIATE TO INCLUDE THE FIRST TIER UTILITY ON WHOM THE MARKET IS
     CENTERED AS A PARTICIPANT IN ITS OWN FIRST TIER MARKET?
A.   Yes. The presumed intention of the analysis is to measure shares of
     capacity that might be available to compete to supply the utility in the
     center. For many shorter term transactions such as economy energy, short
     term capacity and energy, or operating reserves, more intensive use of the
     center utility's own capacity will be a substitute for energy or capacity
     and energy purchased from others, and therefore that center utility's
     capacity ought to be incorporated into the analysis. In making its analysis
     of whether or how much it might purchase from others, the buying utility
     will trade off the costs of operating its own generation against the prices
     offered by those other suppliers. This is the approach which FERC has used
     previously. See Entergy at pages 61,773-74 where participants in each first
     tier market appropriate for examining Entergy's request for market-based
     pricing are identified. It is specifically stated that the "own generation"
     of the entity in the center of each market is included.

Q.   WHAT FIRST TIER MARKETS ARE APPROPRIATE FOR AN ASSESSMENT OF THE EFFECTS OF
     A MERGER BETWEEN UE AND CIPS?
A.   Those first tier markets are identified in Exhibit ___(RWF-10). This is a
     27-page exhibit with each page covering one first tier market (e.g., the
     market centered on AEP) and
<PAGE>
 
                                                           Exhibit No.___(RWF-1)
                                                                  Page 60 of 100

     identifying all participants in it. With the exception of EEI, which is
     excluded for reasons discussed earlier, Exhibit ___(RWF-10) includes a
     first tier market centered on each utility that is interconnected with UE,
     CIPS or both.

Q.   HAVE YOU PREPARED COMPUTATIONS WHICH ASSESS THE EFFECTS OF THE MERGER ON
     CONCENTRATION OF UNCOMMITTED CAPACITY IN THESE FIRST TIER MARKETS?
A.   Yes. Those computations are shown in Exhibits ___ (RWF-11) and ___ (RWF-
     12). The difference between these two exhibits is that Exhibit ___ (RWF-11)
     uses an 18 percent reserve margin for UE, CIPS and other utilities, while
     Exhibit ___ (RWF-12) uses a lower 15 percent reserve margin. The rationale
     for these different reserve margins is discussed above./3/ The two exhibits
     are formatted similarly. Each of the first tier utilities is listed along
     the left, and the four columns contain summary share data concerning each
     of these markets. The first column shows UE's share of uncommitted capacity
     in each first tier market premerger. Because, as discussed, UE has no
     uncommitted capacity when the 18 percent reserve margin is used, this
     figure is always zero in Exhibit ___ (RWF-11). The second column shows the
     premerger share of CIPS. The third column shows the postmerger share of
     Ameren without expanding the market to incorporate the effects of the
     Ameren Tariffs, while the fourth column shows Ameren's share after the
     effects of the

- --------------------
/3/  The only exceptions are SPA and Manitoba Hydro (MH), which is in NSP's
     first tier market. In both Exhibits ___(RWF-11) and ___ (RWF-12), I use a
     9.9 percent reserve margin for SPA for reasons discussed above. I use a 10
     percent reserve margin for MH in both exhibits, which is MAPP's minimum
     requirement for a hydro-based system.
<PAGE>
 
                                                          Exhibit No.___(RWF-1)
                                                                 Page 61 of 100



     Ameren Tariffs are incorporated. The numbers in Column (4) necessarily are
     less than or equal to those in column (3).

Q.   WHAT DATA SOURCES HAVE YOU USED TO PREPARE EXHIBITS ___ (RWF-11) AND  ___
     (RWF-12)?
A.   The data used in the preparation of these two exhibits generally is the
     same as that described above concerning Exhibits ___ (RWF-7) and ___ (RWF-
     8). Additionally, for some of the smaller systems included in certain first
     tier markets, data on total generating capacity and peak demands came from
     the Electrical World Directory of Electric Power Producers, 1995 (EWD).
     Interconnections used to define first tier markets were determined from the
     EWD as supplemented by information provided by UE and CIPS. As I did for
     Exhibits ___ (RWF-7) and ___ (RWF-8), I included only CSW's SPP operations
     in these computations and not those in ERCOT. Moreover, because of the
     "fence," I have not incorporated TVA's uncommitted capacity in the analyses
     except for utilities that are inside that fence.

Q.   PLEASE EXPLAIN THESE TWO EXHIBITS WITH AN EXAMPLE.
A.   Consider AEC which is shown on the first line of Exhibits ___(RWF-11) and
     ___(RWF-12).  From page 1 of Exhibit ___(RWF-10) we see that premerger AEC
     has interconnections with UE as well 15 other systems, but not with CIPS.
     Participants in the first tier market centered on AEC therefore include AEC
     and each of these 16 other systems.  Because UE has no uncommitted capacity
     when the 18 percent reserve margin is 
<PAGE>
 
                                                          Exhibit No.___(RWF-1)
                                                                 Page 62 of 100



     used, Column (1) of Exhibit ___(RWF-11) indicates that UE controls zero
     percent of the uncommitted capacity held by all firms in this first tier
     market. From Column (1) of Exhibit ___(RWF-12) we see that UE's figure is
     3.5 percent when the 15 percent reserve margin is used. For CIPS the
     comparable premerger numbers, shown in Column (2), are zero in both cases
     because CIPS and AEC are not interconnected. The merged firm, Ameren,
     controls 5.7 percent of the uncommitted capacity in the first tier market
     centered on AEC using the 18 percent reserve margin and 8.6 percent using
     the 15 percent reserve margin. These figures are shown in the third column
     of Exhibits ___(RWF-11) and ___ (RWF-12) respectively and are before the
     effects of the Ameren Tariff have been incorporated. The Ameren Tariff will
     allow AEC to transact with several additional entities beyond those
     included in its first tier market. Those additional entities also are
     identified in Exhibit ___(RWF-10) and, for AEC, include AEP, CILCO,
     CINergy, CE, IP, NIPSCO, SIPCO, Soyland, WVPA, IMEA, IMPA and Springfield,
     IL. Column (4) of Exhibit ___(RWF-11) indicates that the merged firm's
     share of uncommitted capacity in this expanded market is only 4.6 percent
     using the 18 percent reserve margin. Column (4) of Exhibit ___ (RWF-12)
     indicates that the merged firm's share in this expanded market is 5.7
     percent using the 15 percent reserve margin.

Q.   WHAT DO EXHIBITS ___ (RWF-11) AND ___(RWF-12) INDICATE?
A.   In the past FERC has used a threshold figure of 20 percent to distinguish
     between situations where generation dominance clearly is not a concern and
     situations where it potentially might be.  These two exhibits indicate that
     in all cases, no matter which reserve margin is 
<PAGE>
 
                                                          Exhibit No.___(RWF-1)
                                                                 Page 63 of 100



     used, the merged firm's share of uncommitted capacity falls far below the
     20 percent threshold level after incorporating the effects of the open
     access tariff. Of course, as indicated, when the 18 percent reserve margin
     is used, UE has no uncommitted capacity anyway. This means that the merger
     could not increase the concentration of uncommitted capacity in any first
     tier market and that, even if the 20 percent threshold were exceeded, it
     would not demarcate a merger-related concern.

Q.   DO YOU HAVE ANY COMMENTS CONCERNING THE USE OF FIRST TIER MARKETS TO
     ADDRESS CONCENTRATIONS OF UNCOMMITTED GENERATING CAPACITY?
A.   Yes. First tier markets so defined represent a relatively conservative way
     to determine relevant geographic markets. As a result they produce market
     share figures for UE and CIPS that almost certainly are much too high. This
     is because they exclude capacity that is more than "one wheel" away from
     the center utility, which in some cases is capacity that probably ought to
     be included. Furthermore, this "traditional" approach does not even include
     all capacity that is only "one wheel" away from the center utility.

Q.   PLEASE EXPLAIN HOW THIS "TRADITIONAL" APPROACH DOES NOT INCLUDE ALL
     CAPACITY THAT IS ONLY ONE WHEEL AWAY FROM THE CENTER UTILITY.
A.   The computations supporting Exhibits ___(RWF-11) and ___ (RWF-12) include
     as market participants (i) the center utility; (ii) all direct
     interconnections of the center utility including UE and/or CIPS as
     appropriate premerger and both UE and CIPS postmerger; and (iii) all other
     entities that can be reached under the Ameren Tariffs. The analyses do
<PAGE>
 
                                                          Exhibit No.____(RWF-1)
                                                                  Page 64 of 100



     not include, however, other utilities that might be accessible under open
     access tariffs that already have been filed by utilities directly
     interconnected to the center utility other than Applicants--such as AEP,
     CE, CILCO, CSW, Entergy, KCPL, KU, MEC and WR. Were such other open access
     tariffs incorporated into the analyses, as they should be, Ameren's share
     of the uncommitted capacity in all of these first tier markets would be
     below the levels shown in Exhibits ___ (RWF-11) and ___ (RWF-12).

Q.   IS IT APPROPRIATE TO INCLUDE THESE ADDITIONAL UTILITIES IN THE FIRST TIER
     MARKET ANALYSES?
A.   Yes. These additional utilities are just as close to the center utility as
     are utilities accessible under the Ameren Tariffs. Thus, just as there is
     only one intervening transmission system between the center utility and a
     utility accessible via the Ameren Tariffs, there is only one intervening
     transmission system between the center utility and each other system
     accessible under the open access tariff of any other directly
     interconnected utility. Symmetry requires that a "one wheel market" be
     defined to incorporate all open access tariffs directly available to the
     center utility and not just that of Applicants.

Q.   CAN YOU EXPLAIN THIS WITH AN EXAMPLE?
A.   Yes. Refer to Exhibit ___ (RWF-13). Each of the circled numbers represents
     utilities and the lines between them represent interconnections. Utility 1
     is interconnected with Utilities 2, 9 and 10. Utility 10, which is also
     interconnected with Utilities 11 and 12, has an open access transmission
     tariff on file. Utilities 2 and 3 propose to merge and, concurrently with
     their FERC application, file an open access transmission tariff that
     includes all direct
<PAGE>
 
                                                          Exhibit No.___(RWF-1)
                                                                 Page 65 of 100



     interconnections of either party as receipt and delivery points. These
     other interconnections, as shown in Exhibit ___(RWF-13), are Utilities 4,
     5, 6, 7 and 8, as well as, of course, Utility 1. Accordingly, postmerger, a
     "one wheel" market centered on Utility 1 is as follows:

               1         The center utility
          merged 2-3     Direct interconnection of center utility
               9         Direct interconnection of center utility
               10        Direct interconnection of center utility
               4         Accessible under 2-3's open access tariff
               5         Accessible under 2-3's open access tariff
               6         Accessible under 2-3's open access tariff
               7         Accessible under 2-3's open access tariff
               8         Accessible under 2-3's open access tariff
               11        Accessible under 10's open access tariff
               12        Accessible under 10's open access tariff

     The important point to stress with this example is that Utilities 11 and 12
     are just as close to Utility 1, the market center, as are Utilities 4, 5,
     6, 7 and 8 which are accessible under the merged firm's open access tariff.
     They are each one wheel away. Accordingly, if it is proper to include
     Utilities 4, 5, 6, 7 and 8 in the first tier market, it likewise must also
     be proper to include Utilities 11 and 12.

Q.   HAVE YOU PREPARED SUMMARY EXHIBITS WHICH INCORPORATE THIS PRINCIPLE FOR THE
     FIRST TIER MARKETS IN THIS CASE?
A.   No. While I believe that it would be appropriate to do so, I also believe
     that it would be superfluous. The merged firm's share of uncommitted
     capacity in each of the first tier markets falls far below the 20 percent
     level which FERC in the past has used as a threshold to distinguish
     situations where market power may be a concern even without properly
<PAGE>
 
                                                          Exhibit No.___(RWF-1)
                                                                  Page 66 of 100



 
     redefining those markets to include utilities accessible under existing
     open access tariffs of entities other than Ameren. Because the 20 percent
     screening requirement already has been met, there is no need to subject
     these markets to further analyses in order to determine whether market
     power concerns might be present. If the merged firm's share already falls
     below 20 percent when the markets have been defined too narrowly, it
     obviously will fall even further below 20 percent when the market is
     appropriately expanded to incorporate additional supplies located within
     one wheel of the center.

Q.   HAVE YOU PREPARED WORKPAPERS WHICH SUPPORT YOUR COMPUTATIONS IN EXHIBITS
     ___ (RWF-7), ___ (RWF-8), ___ (RWF-11), AND ___(RWF-12)?
A.   Yes. Workpapers attached to my testimony include photocopies of the raw
     data used as the basis for the computations, a summary listing of the
     database extracted from those raw materials, and summary sheets for each
     first tier market identifying and providing data for each participant.

Q.   HAVE YOU SEPARATELY INCLUDED UE'S AND CIPS'S REQUIREMENTS CUSTOMERS IN YOUR
     ANALYSES?
A.   Not directly. However, the merged firm's post open access tariff share of a
     first tier market centered on any of these entities will be the same as its
     share of the first tier market centered on Columbia or Springfield, IL (or
     some of the other first tier utilities), because the same set of market
     participants is involved in all cases. Thus, from Column (4) of Exhibits
     ___ (RWF-11) and ___ (RWF-12), after incorporating the effects of the
     Ameren
<PAGE>
 
                                                            Exhibit No.__(RWF-1)
                                                                  Page 67 of 100
 
     Tariffs, the merged firm's share of uncommitted capacity for markets
     centered on these requirements customers is 7.4 percent when the 18 percent
     reserve requirement is used and 9.2 percent when the 15 percent reserve
     requirement is used.

Q.   ARE THERE OTHER INDICATIONS THAT SHORT TERM CAPACITY IS AVAILABLE FROM
     SUPPLIERS OTHER THAN UE AND CIPS?
A.   Yes.  In the fall of 1994 UE sought proposals to provide (principally)
     short term capacity from nearly 60 regional utilities.  In response it
     received offers to supply over 1,000 megawatts for the summer of 1995 and
     nearly 1,200 megawatts for the summer of 1996. The solicitation resulted in
     a purchase of capacity by UE from CIPS.

Q.   ARE THERE ANY OTHER IMPORTANT CONSIDERATIONS INVOLVED IN EXAMINING SHORT
     TERM CAPACITY MARKETS?
A.   Yes.  While I do not believe that, when properly examined, the merger of UE
     and CIPS presents the opportunity for the exercise of market power in short
     term capacity markets, I think that it is important to stress that, even if
     it existed, the exercise of market power in short term capacity markets
     does not present the same concerns that the exercise of market power in
     other markets might, such as those for longer term capacity.  For one
     thing, because of the very nature of surplus in this business, any adverse
     effects that do exist will be relatively short-lived.  Moreover, the
     surplus capacity that might support a strong position in short term
     capacity markets usually is something that suppliers seek to avoid rather
     than obtain.  Those holding large surpluses are usually those whose demand
     forecasts 
<PAGE>
 
                                                            Exhibit No.__(RWF-1)
                                                                  Page 68 of 100

     which formed the basis for their generating capacity additions
     were most at odds with actual occurrences. When the surplus can be
     marketed, it is often sold at prices far below those which can be supported
     by regulatory cost-of-service principles.  More importantly, because the
     short term market consists largely of sales from existing surpluses, the
     actual exercise of market power in this market would have, at most, only
     minimal efficiency consequences and produce only transitory redistributive
     effects.  However undesirable these consequences may appear, they pale in
     significance next to the possible distortions from the exercise of market
     power in long term capacity markets where billions of dollars of new
     investment may be undertaken.  It is these latter markets therefore that
     ought to figure more prominently in any investigation about the potential
     creation of market power from this merger.

Q.   HAVE YOU CONSIDERED WHETHER A MERGER OF UE AND CIPS COULD RAISE PRICES IN
     SHORT TERM POWER MARKETS BY FACILITATING COLLUSION AMONG SELLERS?
A.   Yes.  This is a relatively remote possibility.  For one thing, coordinating
     policies becomes more difficult as the number of entities expands.  While
     there already are many traditional utilities in the region that can compete
     with UE and CIPS, the emergence of marketers greatly expands the pool of
     entities that would be required for coordinating policies. Also, capacity
     (with associated energy) is not a homogenous product, and many variations
     among suppliers' offerings are plausible (e.g., in firmness, energy pricing
     and points of delivery).  These variations make it difficult for suppliers
     to coordinate pricing and output and for cheaters to be detected.  Such
     conditions undermine collusion.
<PAGE>
 
                                                            Exhibit No.__(RWF-1)
                                                                  Page 69 of 100
 
Q.   YOUR DISCUSSION OF THE POSSIBLE EFFECTS OF A MERGER OF UE AND CIPS ON SHORT
     TERM CAPACITY MARKETS HAS FOCUSED ON SELLER MARKET POWER ONLY.  HAVE YOU
     ALSO CONSIDERED WHETHER THE MERGER COULD INCREASE OR FACILITATE THE
     EXERCISE OF BUYER MARKET POWER?
A.   Yes.  This is a concern that can be dispensed with quickly.  As indicated,
     CIPS contemplates no new resource additions until at least 2006.  This
     makes it very unlikely that a stand-alone CIPS would be seeking to purchase
     short term capacity during this time period in order to meet the demands of
     its native load customers.  If CIPS is not likely to be a purchaser in this
     market, the merger cannot reasonably be said to increase buyer market
     power.  Of course, CIPS (and UE as well) may seek to purchase capacity for
     remarketing purposes rather than to serve native load.  But there are
     obviously many other entities that might also purchase capacity for
     remarketing purposes, and so there should be no merger-induced concerns
     about monopsony power in short term capacity markets.

Q.   PLEASE SUMMARIZE YOUR CONCLUSIONS ABOUT THE EFFECTS OF A MERGER BETWEEN UE
     AND CIPS ON SHORT TERM CAPACITY MARKETS.
A.   A merger of UE and CIPS should not present concerns about the exercise of
     market power in regional short term capacity markets.

     On a stand-alone basis, UE's participation as a seller in short term
     capacity markets is limited to the remarketing of capacity purchased from
     others, or sales that extend less than one year into the future.  For types
     of transactions where a stand-alone UE would not be a 
<PAGE>
 
                                                            Exhibit No.__(RWF-1)
                                                                  Page 70 of 100

 
     potential seller, a merger of UE and CIPS of course does not remove an
     independent seller from the market. The elimination of one firm that buys
     and resells capacity should not create competitive concerns, because entry
     into the resale business is relatively easy, and therefore many other
     actual or potential suppliers remain. Moreover, even when we focus only
     upon short term sales which extend less than one year into the future, a
     type of sale for which a stand-alone UE presumably could compete, the
     merged firm's share of uncommitted capacity in first tier markets falls
     short of FERC's traditional threshold levels for determining whether there
     is any potential concern about market power. Applicants' filing of a single
     system transmission tariff including all of UE's and CIPS's direct
     interconnections as potential receipt and delivery points reinforces the
     conclusion that there is no merger-induced concern about market power in
     short term capacity markets.

     B. LONG TERM CAPACITY
        ------------------
Q.   PLEASE REPEAT YOUR DESCRIPTION OF THE MARKET FOR LONG TERM CAPACITY.
A.   The long term capacity market encompasses capacity sales which extend far
     enough into the future that new capacity can be constructed to compete for
     the sale.  Thus, it includes both existing surpluses, where they are
     sufficiently large and permanent to support long term sales, as well as
     repowering of existing units and new capacity that might be constructed.
     Potential suppliers include UE, CIPS, other in-region or adjacent regional
     utilities and those who would construct Qualifying Facilities and other
     nonutility generation.
<PAGE>
 
                                                            Exhibit No.__(RWF-1)
                                                                  Page 71 of 100

 
Q.   IS INFORMATION ABOUT MARKET SHARES LIKELY TO BE USEFUL IN ASSESSING THE
     LIKELIHOOD THAT THE MERGED FIRM MIGHT EXERCISE MARKET POWER IN LONG TERM
     CAPACITY MARKETS?
A.   No.  This is an industry where historically the largest suppliers have been
     vertically integrated, meaning that they own generation, transmission and
     distribution facilities.  It is also an industry where exclusive retail
     service territories predominate.  Accordingly, aggregate measures, such as
     shares of existing generating capability within a region held by particular
     firms, are more likely to be indicative of the relative size of exclusive
     retail service territories than suggestive of any one firm's ability to
     compete in long term capacity markets.  Moreover, what is important for
     long term capacity markets is who will be constructing what new generating
     capacity in the future.  I know of no way to make reasonable projections on
     this topic unless, not very usefully, we confine ourselves to projects that
     are relatively advanced in their gestation process.

Q.   HOW THEN WOULD YOU BEGIN THE PROCESS OF ASSESSING WHETHER A MERGER OF UE
     AND CIPS IS LIKELY TO CREATE A FIRM THAT POSSESSES MARKET POWER IN A LONG
     TERM CAPACITY MARKET?
A.   As a practical matter, I would be suspicious about claims that any one
     entity, however dominant its existing generation and transmission system,
     possessed market power in such a long term market, unless the claim was
     narrowly focused upon truly "transmission dependent" utilities that did not
     have open access or other transmission services available to them.  The
     ability to undertake new construction, both of generation and transmission,
     should mitigate a market power inference in most situations.
<PAGE>
 
                                                          Exhibit No. ___(RWF-1)
                                                                  Page 72 of 100


 
     The dramatic emergence of NUGs in recent years reinforces this view. In
     recent years more than 50 percent of the new generation in this country has
     come from NUGs, as opposed to traditional utility sources. Utility after
     utility issuing RFPs for new capacity consistently has received offers that
     far exceeded the supply blocks sought. This trend began before the passage
     of the National Energy Policy Act of 1992 (NEPA), which includes provisions
     about transmission access and Exempt Wholesale Generators and, obviously,
     before FERC issued its transmission NOPR. NEPA and FERC's NOPR can only
     reinforce this trend.

     FERC has recognized that market power in long term bulk power markets is
     unlikely (Kansas City Power & Light Company, 67 FERC (P)61,183, hereafter
     KCPL) but still considered whether various entry barriers might be present.
     Entry barriers could include: (i) control of transmission; (ii) control of
     sites at which new generation might be constructed; (iii) control of fuel
     supplies; or (iv) control of fuel transport facilities. Such entry
     barriers, if present and significant, presumably could support an inference
     that market power might be present in long term capacity markets.

     The discussion in Section IV indicates that the merger of UE and CIPS will
     not provide the merged firm with control over transmission which will
     enable it to exercise market power. Most importantly, the proposed open
     access transmission tariff will provide those interested in constructing
     new generation capacity the certain knowledge that they can obtain cost-
     based transmission service for long time periods under terms and conditions
     found by
<PAGE>
 
                                                           Exhibit No.___(RWF-1)
                                                                  Page 73 of 100


 
     FERC to be appropriate. Combining two transmission systems under a single
     transmission tariff, if anything, should facilitate entry by new
     generators.

     Mr. Moorman and Ms. Borkowski discuss the potential for control of sites at
     which new generating capacity might be constructed. Mr. Moorman indicates
     that, while CIPS has not had the need to examine site availability for many
     years, several sites were available the last time such a study was required
     but also, more generally, that the characteristics of its service territory
     suggest the availability of numerous sites for those who would wish to
     construct new capacity. Ms. Borkowski testifies that recent studies
     performed by UE conclude there are many potential sites in Missouri at
     which new generation might be constructed which are not controlled by UE.
     Based upon this testimony, I conclude that UE and CIPS do not control sites
     for new generation in their service territories such that they could block
     entry by new competitors.

     Mr. Pettit, Mr. Moorman, and Ms. Borkowski address fuel supply issues. Both
     UE and CIPS operate local gas distribution systems, but Mr. Pettit
     testifies that CIPS purchases greater than 99 percent of its gas supply and
     that UE purchases 100 percent of its gas supply. The amount which is
     provided from owned fields therefore is minuscule. Mr. Pettit further
     testifies that a new generator that wished to purchase its gas supply from
     UE's or CIPS's gas distribution system, rather than from a producer or
     marketer, could do so, presumably at a negotiated discount rate. Mr.
     Moorman testifies that the only fuel supplies which CIPS controls (other
     than the gas used by its local distribution system) are either
<PAGE>
 
                                                           Exhibit No.___(RWF-1)
                                                                  Page 74 of 100



 
     those on site at its generating stations or those that have been contracted
     for the purpose of fueling those stations. Ms. Borkowski testifies that UE
     does not own or have a financial interest in any of the entities that
     supply it with either coal or oil. Based upon this testimony, I conclude
     that UE and CIPS do not own fuel supplies that could be used to block entry
     by their would-be competitors.

     Mr. Pettit, Mr. Moorman and Ms. Borkowski also address fuel transport. Mr.
     Pettit testifies that new gas-fired generators would be able to receive
     local transport service over the UE and CIPS local gas distribution systems
     if they desired and capacity were available. Mr. Pettit also testifies that
     there are six interstate pipelines which traverse CIPS's service territory
     and four which traverse that of UE. Rather than receiving local
     transportation from UE or CIPS, new gas-fired generators presumably could
     locate in proximity to these pipelines and avoid entirely the need for
     local transport. Mr. Moorman testifies that the only fuel transport
     facilities which CIPS owns (other than its gas distribution system) are
     rail cars which are used to bring coal to two of its generating stations
     and tracks that are inside the boundaries of those stations. It does not
     own any other rail, barge or trucking facilities. Ms. Borkowski provides
     similar testimony concerning UE, i.e., that it owns rail cars used to
     deliver coal to its generating stations and rail tracks at its generating
     stations, but no other rail, truck or barge facilities used to transport
     fuel to its generating stations. Ms. Borkowski also testifies that EEI,
     through a subsidiary, owns rail cars and a three-mile rail spur that are
     used just to deliver coal to the Joppa Plant. Based upon this testimony, I
<PAGE>
 
                                                           Exhibit No.___(RWF-1)
                                                                  Page 75 of 100


 
     conclude that UE and CIPS do not own fuel transport facilities that could
     be used to thwart entry by new generating entities.

Q.   YOUR DISCUSSION OF THE LONG TERM CAPACITY MARKET CONCERNS WHETHER THE
     MERGED FIRM MIGHT BE ABLE TO EXERCISE MARKET POWER AS A SELLER OF LONG TERM
     CAPACITY, AND CONCLUDES THAT IT COULD NOT. HAVE YOU SEPARATELY CONSIDERED
     WHETHER THE MERGED FIRM COULD EXERCISE MARKET POWER AS A PURCHASER OF SUCH
     CAPACITY?

A.   Yes. Such a possibility seems very remote indeed. Even after the merger,
     Ameren will account for only approximately 6.5 percent of total load in a
     region defined to include it and all utilities interconnected with either
     merging partner. Even if a potential supplier were forced to deal only in
     this region, which seems unlikely, Ameren will comprise only a small
     portion of total demand. Accordingly, those seeking to market long term
     capacity readily could turn to other potential purchasers. Moreover, if the
     merged entity sought to depress the price paid for output, most entities
     considering construction of new capacity could relocate and deal with other
     potential purchasers. This relocation, obviously, would have to occur
     before significant site-specific investments had been made. Beyond this,
     any residual fears that the merged entity might be able to exercise
     monopsony power over would-be developers, for example those that for some
     reason are limited in where they can locate, should be allayed by the open
     access tariff which the merged firm is filing. The developers can market
     their output to others if the merged firm seeks to depress price or impose
     overly burdensome terms and conditions.
<PAGE>
 
                                                           Exhibit No.___(RWF-1)
                                                                  Page 76 of 100


 
     C. NONFIRM ENERGY
        --------------

Q.   PLEASE REPEAT YOUR DESCRIPTION OF THE MARKET FOR NONFIRM ENERGY.

A.   Nonfirm energy encompasses a variety of closely substitutable interchange
     transactions that generating utilities engage in principally to improve the
     economics of dispatch. A buyer whose own capacity resources are sufficient
     to accommodate its needs nevertheless may choose to purchase nonfirm energy
     from another supplier, if that other supplier can provide energy to it at a
     lower delivered price than the purchaser's own incremental generating cost.
     Whether through ordinary bilateral transactions or more formalized broker
     or power pool arrangements, virtually all generating utilities engage in
     this type of transaction to some extent, sometimes as buyers and sometimes
     as sellers. Actual or potential market participants also include marketers
     who buy from one generating entity and sell to another.

     Economy energy is the most recognizable type of nonfirm energy transaction
     and frequently is provided under split savings pricing rules. Close
     substitutes for economy energy are the replacement or substitute energy
     transactions which utilities in some regions use, where prices are based
     upon incremental cost plus a modest adder (e.g., 10 percent), and "term" or
     "general purpose" energy transactions where "up to" prices provide
     substantial flexibility for buyers and sellers to converge on market-level
     prices. Also substitutable are very short term--daily, weekly, monthly, and
     even seasonal--capacity plus energy transactions where the buyer does not
     need additional capacity to meet its reliability goals but, through its
     purchase, is able to obtain lower cost energy than that
<PAGE>
 
                                                           Exhibit No.___(RWF-1)
                                                                  Page 77 of 100


 
     which is available from its own generating units. The total purchase
     price--a modest demand charge plus an incremental cost-based energy
     charge--is less than the incremental generating costs which the buyer
     would incur if it generated from its own units.

Q.   ARE THERE SUBSTITUTE PRODUCTS FOR NONFIRM ENERGY?

A.   Yes. Most obviously, any utility that is a buyer of nonfirm energy proper,
     as distinguished from a short term capacity substitute, must have available
     its own generating capability to draw upon if the nonfirm supply is
     interrupted. This generation acts as an important force policing the prices
     which those selling nonfirm energy may charge. Buyers retain the option to
     generate from their own sources if sellers attempt to raise prices. Energy
     taken from longer term purchases can serve precisely the same purpose. More
     generally, as I described earlier, there is broad substitutability among
     individual bulk power products in the sense that utilities may use varying
     mixes of these products to develop the firm power product which they need
     to sell to their customers.

Q.   WHO ARE THE BUYERS AND SELLERS OF NONFIRM ENERGY?

A.   Virtually all generating utilities participate as both buyers and sellers
     in nonfirm energy markets. Whether they are sellers or buyers at a
     particular point in time will depend upon relative costs, but can change as
     a result of load level changes, outages and other factors. Some may be
     predominately net sellers while others may be predominately net buyers. As
     described above, both UE and CIPS purchase large amounts of energy to
     support sales to others. UE tends to purchase heavily from entities located
     to the north and west of it--e.g.,
<PAGE>
 
                                                           Exhibit No.___(RWF-1)
                                                                  Page 78 of 100


 
     NSP, MEC, KCPL--where coal generation costs are less. However, it also may
     purchase from utilities located to the east (e.g., CIPS and IP) when
     conditions dictate, such as when the 1993 floods restricted transportation
     of coal to certain of its generating stations. UE sells large quantities to
     EEI for resale by EEI to the USEC enrichment plant. It also sells large
     quantities of energy to Entergy to displace gas fired generation on that
     system and at times for resale by Entergy to other utilities. For these
     sales, UE competes not only with other electricity suppliers but also with
     those who sell gas to Entergy. During summer peaking conditions, however,
     flows may reverse as it becomes economic to move gas fired generation from
     south to north. UE then serves as a purchaser and, sometimes, reseller for
     those transactions. In recent years, CIPS has purchased energy principally
     from CE to the north and PSI/CINergy to the east. For sales its principal
     customers have been EEI and TVA to the south and UE to the west.

Q.   ARE UE AND CIPS ACTUAL OR POTENTIAL COMPETITORS FOR SALES OF NONFIRM
     ENERGY?

A.   Yes, but there also are many other competitors in the nonfirm markets in
     which UE and CIPS sell.

Q.   HOW HAVE YOU PROCEEDED TO ANALYZE THE EFFECTS OF THE MERGER ON NONFIRM
     ENERGY MARKETS?

A.   I have done two things. First, for the same first tier markets discussed
     above, I have computed the merged firm's share of total generating
     capacity. FERC in the past has used this "as a measure of capacity that may
     be available for nonfirm and shorter term sales"
<PAGE>
 
                                                           Exhibit No. ___ RWF-1
                                                                     p.79 of 100


     (KCPL at page 61,556, line 11), although at the same time recognizing its
     obvious defect of failing to incorporate native load demands before the
     computations are made. Second, I have analyzed data on nonfirm and
     substitutable energy or capacity and energy transactions during 1993 and
     1994.

Q.   PLEASE DESCRIBE YOUR ANALYSIS OF TOTAL GENERATING CAPACITY IN FIRST TIER
     MARKETS.

A.   The first tier markets and participants in them are the same as for the
     analysis of uncommitted capacity in first tier markets discussed above.
     The results are summarized in Exhibit ___ (RWF-14). Underlying data and
     other material supporting this exhibit are contained in my workpapers. I
     relied on the same raw data sources as I did for my computations reported
     above concerning uncommitted capacity and treated CSW and TVA in the same
     way. I define total generating capacity as owned capacity less, as
     appropriate, the net of capacity purchases and sales. Exhibit ___ (RWF-14)
     is formatted precisely the same as are Exhibits ___ (RWF-11) and ___ (RWF-
     12). The utilities on whom each first tier market is centered are listed on
     the left. Then, Columns (1) and (2) provide the premerger shares of UE and
     CIPS, respectively, of total capacity in each first tier market. Columns
     (3) and (4) provide the postmerger shares of Ameren, the former before the
     effects of the open access tariff have been incorporated and the latter
     after those effects have been incorporated.

Q.   WHAT DO YOU CONCLUDE FROM EXHIBIT __ (RWF-14)?

<PAGE>
 
                                                         Exhibit No. ___ (RWF-1)
                                                                     p.80 of 100
 
A.   Exhibit ___ (RWF-14) indicates that, in all instances but one, the merged
     firm's share of total generating capacity in first tier markets falls below
     the 20 percent level which FERC has used in the past to determine whether
     there is any possible concern about market power. Accordingly, we need not
     consider these other markets further. The figure exceeds 20 percent only
     for the first tier market centered on WR, where it is 25.4 percent.

Q.   DOES THIS 25.4 PERCENT FIGURE FOR THE FIRST TIER MARKET CENTERED ON WR
     SUGGEST POSSIBLE CONCERN ABOUT MERGER-INDUCED INCREASES IN MARKET POWER?

A.   No.  WR is interconnected with only one of the merging parties, and so the
     merger does not take away any direct trading opportunities that were
     available to it premerger. Second, when the first tier market centered on
     WR is expanded to include entities accessible under open access tariffs of
     other utilities connected to WR, as it should be for reasons discussed
     above, Ameren's share drops below 20 percent. When the first tier market
     centered on WR is expanded to include entities accessible under the open
     access tariffs of CSW and KCPL, both of which are directly interconnected
     with WR, the merged firm's share drops to 12.2 percent. This result is
     shown in Exhibit ___ (RWF-15). Accordingly, when properly computed, the
     merged firm's share of total capacity in all first tier markets falls below
     FERC's 20 percent threshold.

Q.   PLEASE DESCRIBE YOUR ANALYSIS OF NONFIRM AND SUBSTITUTABLE ENERGY OR
     CAPACITY AND ENERGY SALES DURING 1993 AND 1994.

<PAGE>
 
                                                         Exhibit No. ___ (RWF-1)
                                                                  page 81 of 100
 
A.   I have used publicly available data (i.e., Form 1 or equivalent) on nonfirm
     energy (and substitute short term capacity and energy) sales by UE, CIPS
     and interconnected utilities to develop market shares and HHIs concerning
     the merging partners and the effects of the proposed merger.

Q.   WHAT GEOGRAPHIC MARKET DID YOU EXAMINE FOR NONFIRM ENERGY SALES?

A.   Just as it is difficult to draw clean boundaries between products which
     should and should not be included in a relevant product market, it likewise
     can be difficult to determine precise and unambiguous geographic market
     bounds. For example, through displacement, energy can move relatively long
     distances. One utility may buy nonfirm energy from suppliers located to the
     north of its system and resell it to the south, to other utilities who may
     do much the same thing, i.e., buy in the north and sell in the south, etc.
     Prices for nonfirm energy may tend to move in the same direction over very
     broad areas, which could suggest that a broad relevant geographic market
     definition ought to be employed. The approach which I have employed uses a
     relatively narrow geographic market--UE, CIPS and their first tier
     utilities--as a screening device. If it can be shown that the merger
     presents no market power concerns under such a narrow geographic market
     definition, it obviously follows that the merger would not present market
     power concerns if the market were defined more broadly to include
     additional participants such as described in Mr. Moorman's and Ms.
     Borkowski's testimony.

Q.   PLEASE DESCRIBE THE RESULTS OF YOUR ANALYSIS.

<PAGE>
 
                                                         Exhibit No. ___ (RWF-1)
                                                                  page 82 of 100
 
A.   The results are shown in Exhibit ___ (RWF-16) and ___ (RWF-17), each of
     which is formatted in the same way. The former pertains to 1993, while the
     latter pertains to 1994. Column (1) identifies the seller, Column (2) lists
     the sales of nonfirm energy or closely substitutable products, in
     gigawatthours, made by each seller in 1993 or 1994 as appropriate, and
     Column (3) converts those gigawatthour figures into shares of the total
     sales made by all first tier utilities. Column (4) squares the market
     shares as is required for the HHI computation. The Column (4) figures sum
     to provide the premerger HHI. At the bottom I show the HHI increase
     resulting from the merger as well as the postmerger HHI. Mathematically the
     merger-induced HHI increase is equal to two times the premerger UE percent
     times the premerger CIPS percent. Thus, in Exhibit ___ (RWF-16), UE's
     premerger percent is 8.5 while that for CIPS is 6.2 percent. This converts
     to a merger-induced HHI increase of 105, i.e., 8.5 x 6.2 x 2 = 105. As can
     be seen, for both years studied the postmerger HHI is less than 1,000,
     portraying a market that is unconcentrated under the Merger Guidelines. As
     indicated previously, mergers in unconcentrated markets "ordinarily require
     no further analysis" under the Merger Guidelines. I also note that for both
     years the combined shares of the two firms--14.7 percent in 1993 and 15.7
     percent in 1994--fall below threshold levels for concern for single firm
     market shares.

Q.   WHAT DATA HAVE YOU USED IN THE COMPILATION OF EXHIBITS ___ (RWF-16) AND
     ___ (RWF-17)?

A.   I used data filed by the utilities in their Form 1 (or equivalent) annual
     reports.  The compilations include all items from the raw data sources
     except those that clearly do not 

<PAGE>
 
                                                         Exhibit No. ___ (RWF-1)
                                                         page 83 of 100
 
     represent nonfirm or closely substitutable transactions, e.g., those which
     are labeled as requirements sales, long term unit sales, or long term or
     intermediate term firm sales. Where one utility is shown as making a sale
     to another, I include only data on the transaction from the seller's annual
     report or the buyer's annual report, but not from both. In this regard, I
     use the expression transaction cautiously, recognizing that the raw data
     will record as one single annual transaction a number of different sales or
     purchases that occurred at different times and prices throughout each one-
     year reporting period.

Q.   DO YOU HAVE ANY ADDITIONAL COMMENTS ON THE ANALYSES CONTAINED IN EXHIBITS
     ___ (RWF-16) AND ___ (RWF-17)?

A.   Yes. While the analyses contained in these two exhibits do not indicate any
     merger-induced concern about market power in nonfirm energy markets, they
     nevertheless contain data which significantly overstates the importance of
     both UE and CIPS in these markets. Were the data appropriately adjusted,
     the influence of UE and CIPS would be far less than shown in these two
     exhibits. Accordingly, the merger-induced HHI increase also would be less.

Q.   PLEASE EXPLAIN.

A.   As I indicated earlier, most of the nonfirm energy sales of both UE and
     CIPS are supported by energy simultaneously purchased from others. With
     such transactions UE and CIPS in effect bundle transmission services along
     with risk-bearing and aggregation services. While such transactions are
     important, including them in Exhibits ___ (RWF-16) and ___

<PAGE>
 
                                                           Exhibit No.___(RWF-1)
                                                           page 84 of 100
 
     (RWF-17) has the effect of overstating both the total market size as well
     as, more importantly for the analyses here, the individual shares of UE and
     CIPS. In effect, there is a double count, because the transactions are
     included both as a sale from another supplier to UE or CIPS, and then also
     as a sale from UE or CIPS to another purchaser. More properly these
     transactions ought to be included only once. This double count causes the
     size of the total market to be overstated. Moreover, the individual shares
     of both UE and CIPS also are overstated. The purpose of the analyses here
     is to address principally whether the merger might create an inordinate
     concentration of generation such that market power might be exercised.
     Accordingly, we should seek to attribute these transactions to the parties
     whose generation was used, and not to UE or CIPS which served in
     "middleman" roles.

Q.   PLEASE PROVIDE AN EXAMPLE.

A.   Assume that during a particular hour CE sells 500 megawatts to CIPS which
     CIPS in turn resells to EEI. The development of Exhibits ___ (RWF-16) and
     ___ (RWF-17) will have considered this as both a sale by CE and a sale by
     CIPS. Accordingly, transactions totaling 1,000 megawatts will be used in
     determining total market size, and 500 megawatts of sales will be
     attributed to each of CE and CIPS. A more realistic view is that there has
     been only a single transaction of 500 megawatts for which CE is the seller
     and EEI is the buyer. CIPS has functioned principally as a middleman,
     providing transmission and risk-bearing services, but not as either a
     generator or consumer of the 500 megawatts.

<PAGE>
 
                                                            Exhibit No.__(RWF-1)
                                                                  Page 85 of 100

Q.   DOES THIS DEFICIENCY ALSO AFFECT THE DATA FOR UTILITIES INCLUDED IN YOUR
     ANALYSES OTHER THAN UE AND CIPS?

A.   Yes.  However, the raw data used in preparing Exhibits ___ (RWF-17) and ___
     (RWF-18) do not contain a means to identify and therefore eliminate
     simultaneous buy-and-resale transactions.  It is possible to infer,
     however, that for most utilities included in my analyses these types of
     transactions will be much less significant than they are for UE and CIPS or
     that, if they are significant, it still would be wrong to seek to eliminate
     them.  Some of the utilities included in the analysis actually purchase
     relatively little energy from others.  And so while there may not be
     publicly available data which tags specific purchase-for-resell
     transactions, by logic the amount cannot be large.  Some of the utilities
     included in the analysis are not as well situated between selling and
     buying utilities as are UE and CIPS, and so transmission across their
     systems, in the form of simultaneous buy-and-resell transactions, is not as
     desirable.  Other utilities are located at the periphery of the region
     collectively encompassed by the utilities included in Exhibits ___ (RWF-16)
     and ___ (RWF-17).  While they may engage in frequent buy-and-resell
     transactions, the utilities from whom they buy are not likely to be
     included in the market as it has been defined for these exhibits, i.e., UE,
     CIPS and their first tier utilities.  Accordingly, their buy-and-resell
     transactions do not represent a double count of transactions already
     included as another utility's sales.  Were these transactions to be
     eliminated as sales by the intermediate buying-and-reselling utility, they
     would inappropriately disappear from the computations entirely.
<PAGE>
 
                                                            Exhibit No.__(RWF-1)
                                                                  Page 86 of 100
 
Q.   PLEASE PROVIDE AN EXAMPLE.

A.   In testimony filed in support of its application to merge with Wisconsin
     Electric Power Company, NSP states that it purchases energy from utilities
     to the north and west of it to support energy sales to utilities to the
     south and east of it.  Its largest energy suppliers in recent years have
     been MH and the Basin Electric Power Cooperative (Basin), and the largest
     purchaser from it has been UE.  Neither MH nor Basin is included among the
     suppliers identified in Exhibits ___ (RWF-16) and ___ (RWF-17).
     Accordingly, if we were to eliminate purchase-and-resell transactions from
     NSP's sales--if we had the ability to do this, which we do not--we would
     have improperly removed them from the computations entirely.

Q.   ARE THERE ANY OTHER UTILITIES INCLUDED IN EXHIBITS ___ (RWF-16) AND ___
     (RWF-17) THAT DO ENGAGE IN BUY-AND-RESELL TRANSACTIONS THAT COULD REPRESENT
     A SIGNIFICANT DOUBLE COUNT IN THESE TWO EXHIBITS?

A..  I do not have data to address this question directly.  However, it is
     possible to make some reasonable inferences.  AEC's Form 1 equivalents
     report relatively large purchases from MAPP utilities to the north and from
     KCPL in the SPP.  They also report relatively large sales to Entergy to the
     south.  UE also has interconnections with KCPL and MAPP utilities, as well
     as Entergy, and makes purchases from KCPL and the MAPP utilities to support
     its sales to Entergy.  Having interconnections that are similar in this
     respect, it would not be at all unreasonable to infer that AEC uses
     purchases to support its interchange sales in a fashion that is similar to
     what UE does.  Likewise, IP is interconnected with both CE and 
<PAGE>
 
                                                            Exhibit No.__(RWF-1)
                                                                  Page 87 of 100
 
     EEI, and its Form 1s report relatively large purchases of energy from CE
     and relatively large sales to both TVA and EEI. It is probably reasonable
     to infer that, just as does CIPS, IP purchases energy from CE for
     simultaneous resale to EEI and TVA.

Q.   DO YOU HAVE ANY ADDITIONAL COMMENTS ON EXHIBITS ___ (RWF-16) AND ___ (RWF-
     17)?

A.   Yes. There is another reason that these exhibits overstate any market power
     concerns that otherwise might be suggested by the merger.  The data used to
     derive these exhibits reflect only transactions that actually occurred and
     not alternatives that buyers might have available to defeat any merger-
     created ability to raise nonfirm energy prices.  These alternatives include
     both energy supplied from the buyer's own generation as well as energy that
     might have been, but was not, purchased from another supplier.  However, if
     the merged firm sought to raise price, buyers by definition could turn to
     their own generation alternatives in an attempt to counter that would-be
     price increase.  They also presumably could  turn to other suppliers. I
     also note that, because the data are historical, they do not reflect any
     competition enhancing effects that flow from Ameren's proposed open access
     transmission tariffs or those filed late last year by MEC.  To the extent
     that these tariffs broaden the scope of the appropriate geographic markets
     and/or increase the number of participants in those markets, it necessarily
     follows that historical concentration data overstate the likely effects of
     the merger.
<PAGE>
 
                                                            Exhibit No.__(RWF-1)
                                                                  Page 88 of 100
 
Q.   EARLIER YOU STATED THAT MERGERS COULD RAISE MARKET POWER CONCERNS IF THEY
     FACILITATED COLLUSION AMONG SELLERS.  IS SUCH COLLUSION AMONG SELLERS
     LIKELY IN NONFIRM ENERGY MARKETS?

A.   No.  One reason is that this is an industry where all market participants
     are likely to be very well informed about both demand levels and the
     various features (fuel prices, heat rates, major outages) which determine
     sellers' costs.  They ought to be able to estimate relatively accurately
     what the market-clearing price for nonfirm energy is likely to be, and
     therefore determine whether the price which suppliers seek from them is
     greater than that level.  This can help determine whether collusion is
     present.  A second reason is that, depending upon various conditions,
     individual entities are likely to participate in the market both as buyers
     and sellers.  There is less incentive to participate in a price increasing
     conspiracy as a seller if the increased prices work to your disadvantage at
     times when you are a buyer.

Q.   HAVE YOU ALSO CONSIDERED WHETHER THE MERGER OF UE AND CIPS IS LIKELY TO
     CREATE  CONCERNS ABOUT MONOPSONY POWER IN NONFIRM ENERGY MARKETS?

A.   Yes.  The same common sense considerations mentioned earlier suggest that a
     merger between UE and CIPS is unlikely to present concerns about monopsony
     power in nonfirm energy markets.  The merging parties represent only a
     small percentage of potential demand in the region of which they are a
     part.  Moreover, with so many other possible buying entities within the
     region and the availability of transmission service under the merged firm's
     open access tariff--and the open access tariffs of several other directly
     interconnected utilities--would-be energy sellers need not rely upon making
     sales just to 
<PAGE>
 
                                                            Exhibit No.__(RWF-1)
                                                                  Page 89 of 100
 
     the merged entity. Hypothetically, if the merged entity seeks to restrict
     purchases and reduce the price that it pays for energy, the aggrieved
     would-be sellers can simply market their energy elsewhere. They have
     numerous opportunities to do so. In such circumstances, it is implausible
     that buyer market power concerns will be present with a merger between UE
     and CIPS.

Q.   PLEASE SUMMARIZE YOUR CONCLUSIONS ABOUT THE EFFECTS OF THE MERGER ON
     NONFIRM ENERGY MARKETS.
 
A.   A merger of UE and CIPS should not present concerns about the exercise of
     market power in regional nonfirm energy markets.  Both UE and CIPS are
     active participants in these markets, both as buyers and sellers, and so
     the merger necessarily will reduce the number of participants by one.
     However, many other participants still will remain in these markets, both
     as buyers and sellers.  Moreover, even when the geographic scope of the
     market is defined relatively narrowly to include only UE and CIPS and their
     first tier utilities, aggregate measures of historical transactions and
     total generating capacity fall below threshold levels for concern about
     market power. Residual concerns about market power should be mitigated by
     the open access transmission tariff that Applicants are filing, as well as
     the open access transmission tariffs that several other regional utilities
     have filed in recent years.  Concern that the merged entity might be able
     to exercise buyer market power in nonfirm energy markets should be
     mitigated by the large number of potential buying utilities in the region,
     the several open access transmission tariffs now on file, and the merged
     firm's relatively small share of total demand in the region.
<PAGE>
 
                                                            Exhibit No.__(RWF-1)
                                                                  Page 90 of 100
 
     D. OTHER CONSIDERATIONS

Q.   ARE THERE ANY ADDITIONAL TOPICS THAT YOU WISH TO ADDRESS CONCERNING WHETHER
     A MERGER OF UE AND CIPS IS LIKELY TO CREATE MARKET POWER IN REGIONAL BULK
     POWER MARKETS?

A.   Yes.  Various information presented above, relating to interconnections and
     market share and concentration indexes derived from historical or
     contemporaneous data, suggest that this is not a merger that presents
     competitive concerns for wholesale bulk power markets.  I believe that this
     is a conclusion that can only be reinforced by certain of the changes that
     now are underway in the industry, e.g., opening up of transmission systems
     under open access transmission tariffs, proliferation of NUGs and
     competitive bidding systems, and the potentially increasing role of
     marketers.  Indeed, as I have indicated, the merger actually presents an
     opportunity for enhancement of wholesale bulk power market competition
     because of the concomitant filing of the consolidated (one system)
     transmission tariff.  This expands the pool of utilities accessible for a
     single transmission charge.  While short term and nonfirm markets may
     become more competitive as a result, a more important implication
     ultimately may be easier entry for those who would construct new generation
     capacity.  Most of the NUG capacity that has come on-line in this country
     to date has been contracted to a single buyer under a long term
     arrangement. By increasing the pool of potential buyers and therefore
     decreasing market risk, the consolidated open access tariff may make it
     more likely that NUGs are constructed whose output is not entirely under
     contract, i.e., what are sometimes referred to as "merchant" plants.  This
     can expand the role of the market in decisions about constructing new
     capacity.  When NUG capacity is 
<PAGE>
 
                                                            Exhibit No.__(RWF-1)
                                                                  Page 91 of 100
 
     constructed as a result of a utility's RFP process, it is a centralized
     utility (with regulatory oversight) planning process that will have
     determined the timing and amount of such capacity, and probably influenced
     other characteristics as well such as fuel type, location and technology.
     When merchant plants are constructed, it is the marketplace rather than a
     central planning process that will have determined their attributes.

Q.   SEVERAL OTHER ELECTRIC UTILITY MERGERS HAVE OCCURRED OR BEEN ANNOUNCED
     RECENTLY.  DOES YOUR ANALYSIS INCORPORATE TRENDS TOWARD INCREASING
     COMPETITION IN THE INDUSTRY?

A.   Several mergers already have taken place among utilities interconnected
     with Applicants.  These include the merger of Iowa Power Inc. and Iowa
     Public Service Company to form MPSI; the merger of MPSI and IIGE to form
     MEC; the merger of Iowa Southern Utilities and Iowa Electric Light & Power
     into IES; the merger of KG&E and Kansas Power and Light Company to form WR;
     the merger of Entergy and Gulf States Utilities; and the merger of PSI and
     Cincinnati Gas & Electric to form CINergy.  My analyses--concerning number
     of interconnections, uncommitted and total capacity and nonfirm energy
     transactions--reflect all of these consolidations which have already taken
     place and conclude that a merger between UE and CIPS does not present
     significant competitive concerns.  Moreover, as indicated, I believe that
     many changes now underway in the industry, whose effects do not fully
     manifest themselves in my analyses, can only reinforce such a conclusion.
     However, I have not sought to incorporate the effects of mergers which
     might take place in the future, nor do I believe that it is possible or
     appropriate to do so.  It is not possible to do so because I do not know
     what mergers might take place in the future.  
<PAGE>
 
                                                            Exhibit No.__(RWF-1)
                                                                  Page 92 of 100
 
     Properly assessing the effects of any merger requires an analysis of the
     specific facts which such merger presents and is not something that can be
     done on a generic basis absent reference to those facts. Moreover, it is
     not appropriate to seek to incorporate the effects of mergers which may
     occur in the future, because of the very significant risk that an attempt
     to speculate on what conditions might arise in the future will cause
     benefits that might be available now, from this merger, to be sacrificed
     because of future harms which may or may not arise. Far better, I think, is
     to assess this merger now on its merits, and then to assess any mergers
     that may in the future be proposed on their merits as perceived at the time
     they are proposed. Market power concerns which then are believed to be
     present can be addressed at the time those future mergers are proposed. If
     significant market power concerns are believed to be present, those future
     mergers can be conditioned as appropriate or rejected. But we need not
     speculate now on the extent to which such concerns then may be present or
     how any such presence should affect the review of this merger.

VI.  RETAIL COMPETITION ISSUES

Q.   HAVE YOU SOUGHT TO EXAMINE WHETHER THE PROPOSED MERGER WILL CREATE OR
     ENHANCE MARKET POWER FOR SALES OF ELECTRICITY TO RETAIL CUSTOMERS?

A.   Yes.

Q.   PLEASE DESCRIBE THAT EXAMINATION.
<PAGE>
 
                                                                  Page 93 of 100


A.   There generally are four types of retail electric competition which can be
     hypothesized to exist--franchise competition, yardstick competition,
     locational or customer competition, and fringe area competition. I have
     examined each individually and concluded that the merger is not likely to
     affect the prospects for such competition significantly. As a threshold
     matter, the rates charged by UE (in Missouri and Illinois premerger and in
     Missouri postmerger) and CIPS (in Illinois) are constrained by state
     regulators. By itself this should greatly reduce any fear that a merger of
     UE and CIPS will create or enhance market power in retail markets for
     electricity.

Q.   WHAT IS FRANCHISE COMPETITION?

A.   Franchise competition is competition for the right to be the exclusive
     electric supplier within a predefined area.

Q.   WILL A MERGER OF UE AND CIPS SIGNIFICANTLY AFFECT PROSPECTS FOR FRANCHISE
     COMPETITION?

A.   No. Instances of franchise competition usually involve an existing or
     potential municipal distribution system and a nearby investor-owned
     utility, and so it is almost definitional that the merger of two vertically
     integrated investor-owned utilities will not significantly affect the
     prospects for it. Any franchise competition that, but for the merger, would
     take place between UE or CIPS and an actual or potential municipal
     distribution system, still can take place postmerger between that actual or
     potential municipal distribution system and the merged entity.
<PAGE>
 
                                                                  Page 94 of 100


Q.   WHAT IS YARDSTICK COMPETITION?

A.   Yardstick competition usually refers to a striving by utilities to rank
     more favorably in comparative evaluations (of rates, costs or other
     performance measures) made by their regulators.

Q.   WILL A MERGER OF UE AND CIPS SIGNIFICANTLY AFFECT PROSPECTS FOR YARDSTICK
     COMPETITION?

A.   No. Because both UE and CIPS provide retail service in Illinois, the merger
     in principle might reduce the prospects for yardstick competition in
     Illinois if it were true that Illinois's regulators were able to use only
     Illinois utilities in any yardstick or performance comparisons that they
     wanted to make. This is because the merger will reduce the number of
     vertically integrated IOUs selling electricity in Illinois. (No similar
     concerns would be faced by Missouri regulators because only UE, and not
     CIPS, provides service at retail in Missouri.) However, this does not
     appear to present a significant problem. The electric utility industry can
     be distinguished by the wide array of data on costs, price and operations
     which is available publicly. Accordingly, regulators seeking to make
     yardstick comparisons need not be confined to a sample that includes only
     utilities under their jurisdiction but can include utilities nationwide if
     they so desire. Indeed, such larger samples generally will produce more
     meaningful performance comparisons anyway. Because the universe of
     utilities available for comparative purposes is so large, the merger
<PAGE>
 
                                                                  Page 95 of 100


     of two, even if they both serve in a single state, does not significantly
     affect the scope of useful comparisons which can be made.

Q.   WHAT IS LOCATIONAL OR CUSTOMER COMPETITION?

A.   Locational or customer competition usually refers to efforts by electric
     suppliers to keep their prices low so they can induce relatively large
     electricity consumers to locate or expand operations in their service
     territory as opposed to the service territory of another supplier.

Q.   WILL A MERGER BETWEEN UE AND CIPS SIGNIFICANTLY AFFECT PROSPECTS FOR
     LOCATIONAL COMPETITION?

A.   No. By logic, locational competition can be significant only for the
     relatively small grouping of customers whose electricity purchases comprise
     a relatively high percentage of their total costs. But where electric costs
     are important, customers have the incentive to shop over relatively broad
     areas, in some cases nationwide and beyond. Area development professionals
     at both UE and CIPS recognize that in most cases energy costs, including
     natural gas, are a relatively insignificant locational determinant. They
     also recognize that an individual "prospect's" alternatives to locating in
     their service territory will vary from case to case but, where they are
     known, are likely to encompass broad multistate regions. The merger of two
     IOUs within such broad areas should not significantly reduce prospects for
     locational competition.
<PAGE>
 
                                                                  Page 96 of 100


Q.   WHAT IS FRINGE AREA COMPETITION?

A.   Fringe area competition refers to competition to serve individual customers
     located near the boundaries of the service territories of more than one
     supplier.

Q.   WILL A MERGER OF UE AND CIPS SIGNIFICANTLY AFFECT PROSPECTS FOR FRINGE
     COMPETITION?

A.   No. Because the retail service territories of most electric suppliers tend
     to be well defined and exclusive, customers located at a particular site
     generally do not have a choice of suppliers. As a result, this form of
     retail competition usually is not significant in this country. More
     particularly as concerns this merger, the retail electric service
     territories of CIPS and UE for the most part do not abut, and so there is
     little prospect for fringe area competition between the two anyway. The
     limited area where they do abut, near the town of Grafton, Illinois, is
     rural in nature, and it is my understanding that there are no existing
     electricity customers in this area which have the option of selecting
     between service by UE and CIPS. Of course, any fringe area competition that
     might exist between either of the two and a cooperative or municipal system
     still could take place after the merger occurs.

Q.   WILL THE MERGER OF UE AND CIPS AFFECT INTERFUEL COMPETITION BETWEEN GAS AND
     ELECTRICITY AT THE RETAIL LEVEL?

A.   Both UE and CIPS provide both gas and electricity at retail. It is my
     understanding that there is no overlap between the area where UE sells
     electricity at retail and the area where CIPS sells electricity at retail,
     and no overlap between the area where UE sells gas at retail and the area
     where CIPS sells gas at retail. Accordingly, the merger will not eliminate
<PAGE>
 
                                                                  Page 97 of 100


     direct electricity versus electricity nor gas versus gas competition
     between the two. However, it is also my understanding that there are
     several communities in and around Grafton, Illinois, with approximately 900
     customers in total, where CIPS sells electricity at retail and UE sells gas
     at retail. As part of the merger transaction, these retail gas customers of
     UE will become retail gas customers of CIPS. In theory, therefore, the
     merger will eliminate the opportunity that these customers have to select
     between alternative suppliers for applications where natural gas and
     electricity are competitive. Because of the small number of such
     customers--there are only 900 such customers, whereas the two companies
     together have more than 1,700,000 gas and electric customers--and
     the regulatory protections which exist concerning supply to them, this
     merger-induced reduction in possible competition seems insignificant.

VII. VERTICAL ISSUES

Q.   ARE THERE ANY SIGNIFICANT VERTICAL CONCERNS PRESENTED BY THE PROPOSED
     MERGER?

A.   No.

Q.   PLEASE EXPLAIN.

A.   Principal areas for concern about potential vertical-related effects of a
     merger of electric utilities appear to relate to any ability that might be
     present for the merged firm to favor itself or its affiliates in the terms
     and conditions on which access to key inputs is granted, where such
     favorable access terms might harm its competitors. Of course, by logic, for
     this
<PAGE>
 
                                                                  Page 98 of 100


     to represent a merger-induced concern, it must be one that is created or
     enhanced as a result of the merger and not something which existed
     previously. In any case, the possibility for such favoritism does not
     appear to be present here.

     As indicated, concurrently with their merger application, Applicants are
     filing open access transmission tariffs designed to comply with FERC's
     requirements as set forth in its transmission NOPR. While I believe that
     wholesale bulk power markets in the region are competitive and will remain
     so postmerger, as discussed above, the functional unbundling requirement
     contained in the NOPR and Applicants' tariffs should go a long way toward
     assuaging residual fears that the merged entity will be able to use its
     transmission ownership to exercise market power in these markets. I am
     aware, of course, that some industry observers believe that competitive
     concerns are inherent in the vertically integrated structure which
     predominates in the industry today, where generation and transmission are
     combined under common ownership. These observers would impose more radical
     solutions to the competitive problems which they perceive than the "mere"
     functional unbundling requirement that is contained in FERC's NOPR,
     including "corporate unbundling" or the creation of "independent system
     operators" that would dispatch generation assets and control access to
     transmission. Whatever the merits of such arguments, however, I do not
     believe that they either relate to, or will be altered as a result of, a
     merger of UE and CIPS. A merger of UE and CIPS is not a merger which
     creates or exacerbates competitive problems in wholesale bulk power
     markets, and those who wish to propose radical structural changes for the
     industry must look beyond the facts presented by
<PAGE>
 
                                                                  Page 99 of 100


     this merger to find support for their positions. If it is desirable to
     restructure the industry in the fashion which some suggest, that will be
     true whether or not CIPS and UE merge. Moreover, if such restructurings are
     not desirable in the absence of a merger between UE and CIPS, they will not
     become desirable just because the merger occurs.

     Because both Applicants own natural gas distribution systems, a potential
     concern could arise that they will provide gas sales or gas transport
     services for their own electric generation facilities or those of their
     affiliates on more favorable terms than for electric generation facilities
     of their competitors, and that the merger might enhance their ability to do
     so or increase the benefits realizable from such actions. Because CIPS does
     not generate any electricity from gas, and because UE generates only a very
     limited amount, this concern, if valid at all, would apply principally to
     future generation capacity. In any case, the concern seems misplaced for a
     merger between UE and CIPS. As discussed in Mr. Pettit's testimony, it is
     not likely that competing generators would seek to buy gas directly from UE
     or CIPS, but in any case the maximum rates which UE and CIPS can charge are
     set by state regulators. As also discussed in Mr. Pettit's testimony, there
     are six interstate natural gas pipelines that run through CIPS's territory
     and four that run through UE's territory. A developer wishing to construct
     a new gas-fired power plant presumably would seek to locate in proximity to
     one (or more) of these pipelines, thus avoiding costs for transporting gas
     across CIPS's or UE's distribution system. Moreover, even if it wished to
     connect directly to the UE or CIPS distribution system rather than one of
     the interstate pipelines, it could receive local transport service because
     regulators in both Illinois and
     
<PAGE>
 
                                                                 Page 100 of 100


     Missouri require the provision of open access transmission service. It does
     not appear possible, therefore, that the merged firm will be able to block
     supply or transport of natural gas to its would-be competitors and thereby
     favor any of its own yet-to-be-constructed natural gas generators.

Q.   HAVE YOU CONSIDERED WHETHER THERE ARE OTHER BUSINESS INTERESTS OF EITHER UE
     OR CIPSCO THAT COULD CREATE MARKET POWER CONCERNS AS A RESULT OF THE
     MERGER?

A.   Other business interests of UE are identified in Mr. Rainwater's testimony.
     Other business interests of CIPS are identified in Mr. Koertner's
     testimony. For UE these business interests include EEI and Union Electric
     Development Corporation (UEDC). For CIPSCO they include EEI and CIPSCO
     Investment Company. I have already discussed EEI. Mr. Rainwater indicates
     that UEDC owns civic-related projects in the UE service area. It is not
     apparent to me how ownership of civic-related projects could create
     concerns about market power resulting from the merger. Mr. Koertner
     describes CIPSCO Investment Company as a company that manages nonutility
     investments including leveraged leases, marketable securities and energy
     projects. It is my understanding that some of these investments involve
     interests in electric generating projects, but also that in all cases
     CIPSCO is a passive investor with no ability to make decisions affecting
     the level or dispatch of the project's output. I do not believe that these
     investment activities suggest potential competitive concerns arising from
     the merger of UE and CIPS.

Q.   DOES THIS CONCLUDE YOUR TESTIMONY?

A.   Yes.
<PAGE>
 
                           UNITED STATES OF AMERICA
                                  BEFORE THE
                         FEDERAL REGULATORY COMMISSION

DISTRICT OF COLUMBIA                  ) SS.

Central Illinois Public Service Company
Union Electric Company                )                Docket No. ER96-____-000

                          AFFIDAVIT OF RODNEY FRAME

     I, Rodney Frame, being duly sworn, depose and say that the statements 
contained in the Prepared Testimony of Rodney Frame on behalf of Union Electric 
Company and Central Illinois Public Service Company in this proceeding are true 
and correct to the best of my knowledge, information and belief, and I hereby 
adopt said testimony as if given by me in formal hearing, under oath.




                                       Signed this 22nd day of December, 1995


                                        /s/ Rodney Frame
                                       --------------------------------
                                                           Rodney Frame

SUBSCRIBED AND SWORN to before me this 22nd day of December, 1995


/s/ Rosalind Brown
- ---------------------
Notary Public


My Commission Expires:

September 30, 1999
- ---------------------
<PAGE>
 
<TABLE> 
<CAPTION> 
                                         TABLE OF EXHIBITS
<S>            <C>                        
Exhibit No. __ (RWF-1)..............................Prepared Direct Testimony of Rodney Frame
Exhibit No. __ (RWF-2).................................................Resume of Rodney Frame
Exhibit No. __ (RWF-3)..................................................List of Abbreviations
Exhibit No. __ (RWF-4)........................................Interconnections of UE and CIPS
Exhibit No. __ (RWF-5)................................Postmerger Interconnections of Entities 
                                                         Interconnected with Both UE and CIPS
Exhibit No. __ (RWF-6)..........................Interchange Sales and Purchases for Utilities
                                               Interconnected with Both UE and CIPS 1991-1994
Exhibit No. __ (RWF-7)..........Uncommitted Capacity of UE, CIPS and Interconnected Utilities 
                                                           18% Reserve Margin for UE and CIPS
Exhibit No. __ (RWF-8)..........Uncommitted Capacity of UE, CIPS and Interconnected Utilities
                                                           15% Reserve Margin for UE and CIPS
Exhibit No. __ (RWF-9)...................................................First Tier Utilities
Exhibit No. __ (RWF-10).....................................First Tier Market Centered on AEC
Exhibit No. __ (RWF-11)..........Ameren's Share of Uncommitted Capacity in First Tier Markets
                                                                      18% Reserve Margin 1996
Exhibit No. __ (RWF-12)..........Ameren's Share of Uncommitted Capacity in First Tier Markets
                                                                      15% Reserve Margin 1996
Exhibit No. __ (RWF-13).............................Defining First Tier Markets Symmetrically
Exhibit No. __ (RWF-14)................Ameren's Share of Total Capacity in First Tier Markets
Exhibit No. __ (RWF-15).....................Total Capacity in One Wheel Market Centered on WR
Exhibit No. __ (RWF-16).........Nonfirm Energy Sales by UE, CIPS and Interconnected Utilities
                                                                      All Transactions - 1993
Exhibit No. __ (RWF-17).........Nonfirm Energy Sales by UE, CIPS and Interconnected Utilities
                                                                      All Transactions - 1994
</TABLE> 
<PAGE>
 
                                                         Exhibit No. ___ (RWF-2)
                                                                     Page 1 of 9

                                  RODNEY FRAME


National Economic Research Associates, Inc.
1800 M Street, N.W.
Suite 600 South
Washington, D.C.  20036
(202) 466-3510

     Mr. Frame graduated from George Washington University and pursued graduate
work there under a National Science Foundation Traineeship.  His areas of
specialization were public finance and urban economics.  He completed all
requirements for his Ph.D. degree with the exception of the thesis.

     Before joining NERA, he was a senior economist at Transcomm, Inc., where he
directed a number of projects concerning market structure and ratemaking in the
telecommunications industry, competition among electric utilities, and postal
ratemaking.

     At NERA he has consulted with electric utility clients on a variety of
matters including retail competition, bulk power markets and competition,
transmission access and pricing, partial requirements ratemaking, contractual
terms for wholesale service, contracting for nonutility generation and retail
wheeling.  A substantial portion of the work has been in conjunction with
litigated antitrust and Federal Energy Regulatory Commission proceedings.  Much
of his recent work has involved transmission access and pricing issues, topics
on which he currently advises several investor-owned utilities.

     Mr. Frame frequently speaks before electric industry groups on competition-
related topics.  He has testified in federal and local courts, before federal
and state regulatory commissions, and before the Commerce Commission of New
Zealand.
<PAGE>
 
                                                         Exhibit No. ___ (RWF-2)
                                                                     Page 2 of 9



EDUCATION:

          George Washington University
          B.B.A. 1970

          George Washington University
          Completed all requirements for Ph.D. in economics except thesis, 
          1970-1973


EMPLOYMENT:

1990-     National Economic Research Associates, Inc.

          Vice President.  Has participated in projects dealing with retail
          competition between utilities, bulk power markets, electric utility
          mergers, transmission access and pricing, partial requirements
          ratemaking, contractual terms for wholesale service, bidding for new
          capacity (including that supplied by conservation), least-cost
          planning and retail wheeling.  Principal clients have been investor-
          owned electric utilities.  Has testified in federal and local courts,
          before federal and state regulatory commissions and before the
          Commerce Commission of New Zealand and has spoken before various
          industry and client study groups.

1984-1989 Senior Consultant.

1975-1984 Transcomm, Inc.

          Senior Economist. Worked on a variety of projects concerning market
          structure, pricing and cost development in regulated industries.
          Clients included the U.S. Departments of Commerce, Defense and Energy,
          the Nuclear Regulatory Commission, the State of Oregon, bulk mailers
          and various communications equipment manufacturers and service
          providers. Participated in numerous federal and state regulatory
          proceedings and was principal investigator for a multi-year Department
          of Energy study addressing various aspects of electric utility
          competition.

1974-1975 Independent Economic Consultant

          Advised telephone equipment manufacturers concerning cost and rate
          development for competitive telephone offerings, analyzed alternative
          travel agent compensation arrangements and examined nonbank activity
          by bank holding company firms.

1973-1974 Program of Policy Studies in Science and Technology 
          Research Staff.

1973      Urban Institute
          Research Staff.
<PAGE>
 
                                                         Exhibit No. ___ (RWF-2)
                                                                     Page 3 of 9


SELECTED REPORTS AND SPEECHES

"Moving From Here to There: Some Implications for Electric Transmission," speech
presented to the Infocast Power Industry Forum, Palm Springs, California,
February 17, 1995.

"What Does 'Comparability' Really Mean?," speech presented to The Federal Energy
Bar Association, Washington, D.C., November 17, 1994.

"Recent Developments in North American Electric Generation Capacity Procurement
Systems," with Mahim Chellappa, prepared for ElectricitJ de France (EDF), Paris,
France, August 1994.

"Current Transmission Topics" and "Trans Alta's Unbundled Rate Proposal,"
presented to the Canadian Electrical Association, Montreal, PQ, Canada, May 9,
1994.

"Retail Wheeling Issues," speech presented to the Edison Electric Institute
National Accounts Workshop, Atlanta, Georgia, February 7, 1994.

"Retail Wheeling:  Doing It the Right Way," speech presented to the Retail
Wheeling Conference, Denver, Colorado, November 8, 1993.

"Retail Wheeling," speech presented to the Missouri Valley Electric Association
Division Conference, Kansas City, Missouri, October 22, 1993.

"An Economic Perspective on Current Transmission Pricing Issues," speech
presented to the Edison Electric Institute 1993 Fall Legal Committee Meeting,
Minneapolis, Minnesota, October 7, 1993.

"Comments on Transmission Reform Proposals," report prepared for the Edison
Electric Institute, October 1993.

"Sunk Transmission Cost Recovery Issues," report prepared for The Electricity
Industry Committee, New Zealand, September 1, 1993.

"Characteristics of a 'Good' Retail Wheeling System," speech presented to the
Second Annual Electricity Conference sponsored by Executive Enterprises, Inc.,
Washington, D.C., April 21-22, 1993.

"Characteristics of a 'Good' Retail Wheeling System," speech presented to the
Electric Utility Business Environment Conference sponsored by Electric Utility
Consultants, Inc., Denver, Colorado, March 16-17, 1993.

"Change in the Industry," seminar presentation on privatization and service
unbundling presented to Ontario Hydro management and special strategy task
force, Ontario, Canada, February 3, 1993.

"The U.S. Experience and What Is To Come," speech presented to NERA Seminar on
Competition in the Regulated Industries (Electric/Telecommunications), Rye Town
Hilton, Rye Town, New York, October 30, 1992.
<PAGE>
 
                                                         Exhibit No. ___ (RWF-2)
                                                                     Page 4 of 9



"Emerging Transmission Pricing Issues," speech presented to Electric Utility
Consultants, Inc.'s 3rd Annual Transmission & Wheeling Conference, Chicago,
Illinois, September 22-23, 1992. .

"Emerging Transmission Pricing Issues," speech presented to Executive
Enterprises, Inc., 1992 Electricity Conference: Restructuring the Electricity
Industry,  Washington, D.C., September 15-16, 1992.

"Opportunity Cost Pricing for Electric Transmission:  An Economic Assessment,"
report prepared for Edison Electric Institute, June 1992.

"A Pragmatic Look at Open Access," presented to DOE/NARUC Workshop on
Electricity Transmission, Stockbridge, Massachusetts, June 2, 1992.

"Some Thoughts About Open Access," presented to EMA's Issues and Outlook Forum,
Atlanta, Georgia, May 5, 1992.

"Transmission Access and Pricing:  What Does A Good 'Open Access' System Look
Like," NERA Working Paper #14, January 1992.

"Transmission Access:  How Should We Proceed?"  speech presented to the Second
Annual Transmission and Wheeling Conference, Denver, Colorado, November 21,
1991.

"Evaluation of Qualifying Facility Proposals," prepared for Florida Power
Corporation, March 1991.

"Design of Capacity Procurement Systems," prepared for ElectricitJ de France,
January 1991.

"Issues in the Design of Generating Capacity Procurement Systems," prepared for
TransAlta Utilities, January 1991.

"A Critique and Evaluation of the Large Public Power Council's Transmission
Access and Pricing Proposal," prepared for Edison Electric Institute, December
1990.

"The Effects of a Premature Shutdown of the Trojan Nuclear Power Plant,"
prepared for Portland General Electric Company, October 1990.

"Can We Implement Reasonable Transmission Pricing and Access Procedures?"
presented to the Edison Electric Institute System Planning Committee, Dallas,
Texas, October 24, 1990.

"An Examination of the Proper Role for Utilities in Promoting Conservation
Expenditures," prepared for Public Service Electric & Gas Company with T. Scott
Newlon, 1990.

"Issues in the Design of Competitive Bidding Systems," presented at the
Pennsylvania Electric Association System Planning Meeting," 1990.
<PAGE>
 
                                                         Exhibit No. ___ (RWF-2)
                                                                     Page 5 of 9


"Should We Use Opportunity Cost Pricing for Transmission?" presented to the
Edison Electric Institute Interconnection Arrangements Committee, 1990.

"Issues Concerning Selection Criteria Development for Capacity RFPs," prepared
for the Bonneville Power Administration, 1990.

"Nonutility Generators and Bonneville Power Administration Resource Acquisition
Policy," prepared for the Bonneville Power Administration, with David L.
Weitzel, 1990.

"An Evaluation of Resource Solicitation Alternatives," prepared for the
Bonneville Power Administration, 1990.

"Recent Changes in the Electric Power Industry and Pressures on the Transmission
System," presented at seminar "Competitive Electricity:  Why the Debate?"
sponsored by the Electricity Consumers Resource Council, 1988.

"Some Thoughts on New Transmission Access and Pricing Proposals," presented at
conference "Transmission Pricing and Access: Reinventing the Wheel," sponsored
by Cogeneration and Independent Power Coalition of America and American
Cogeneration Association, 1988.

"Approaching the Transmission Access Debate Rationally," Transmission Research
Group Working Paper Number 1, with Joe D. Pace, 1987.

"The Essential Facilities Doctrine," NERA, 1985.

"The Nuclear Regulatory Commission's Antitrust Review Process:  An Analysis of
the Impacts," Transcomm, Inc., prepared for the U.S. Department of Energy, 1981.

"Competitive Aspects of Utility Involvement in Cogeneration and Solar Programs,"
Transcomm, Inc., prepared for the U.S. Department of Energy, 1981.

"An Appraisal of Antitrust Review Extension in the Context of Small Utility Fuel
Use Act Compliance," Transcomm, Inc., prepared for the U.S. Department of
Energy, 1980.

"Analysis of Proposed License Conditions with Respect to Antitrust
Deficiencies," Transcomm, Inc., prepared for the U.S. Nuclear Regulatory
Commission, 1978.

"Analysis of NRC Staff's Proposed License Conditions for Midland Units,"
Transcomm, Inc., prepared for the U.S. Nuclear Regulatory Commission, 1978.
<PAGE>
 
                                                         Exhibit No. ___ (RWF-2)
                                                                     Page 6 of 9



TESTIMONY

Prepared testimony on behalf of Northeast Utilities before the Federal Energy
Regulatory Commission in Northeast Utilities Service Company, Docket No. ER95-
1686-000, concerning FERC's generation dominance standard in support of
Northeast Utilities' request for market-based pricing authority, November 13,
1995.

Sur-reply affidavit on behalf of Rochester Gas & Electric before the U.S.
District Court, Western District of New York, in Kamine/Besicorp Allegany L.P.
v. Rochester Gas & Electric Corporation, Case No. 95-CIV-6045L, in response to
motion by Kamine/Besicorp Allegany L.P. for a preliminary injunction, July 10,
1995.

Prepared Supplemental Rebuttal Testimony on Transmission NOPR Issues on behalf
of Florida Power & Light Company before the Federal Energy Regulatory Commission
in Florida Power & Light Company, Docket Nos. ER93-465-000, et al., addressing
transmission NOPR issues raised by FERC Staff and Intervenors, May 19, 1995.

Prepared Direct Testimony on Transmission NOPR Issues on behalf of Florida Power
& Light before the Federal Energy Regulatory Commission in Florida Power & Light
Company, Docket Nos. ER93-465-000, et al., concerning the effects of FERC's
recent Notice of Proposed Rulemaking on issues in FPL's ongoing case, April 25,
1995.

Affidavit on behalf of Rochester Gas & Electric before the U.S. District Court,
Western District of New York, in Kamine/Besicorp Allegany L.P. v. Rochester Gas
& Electric Corporation, Case No. 95-CIV-6045L, in support of its opposition to a
request by Kamine/Besicorp Allegany L.P. for a temporary restraining order,
March 9, 1995.

Testimony on behalf of Virginia Power before the Circuit Court of the City of
Richmond in Case No. LW-730-4, Doswell Limited Partnership v. Virginia Electric
Power Company concerning the level of fixed gas transportation costs associated
with the proxy unit which forms the basis for Virginia Power's payments to
Doswell, March 2, 1995.

Prepared Rebuttal Testimony on behalf of American Electric Power Service
Corporation before the Federal Energy Regulatory Commission in Docket Nos. ER93-
540-001 addressing issues concerning FERC's new comparability standard and its
implications for AEP transmission service offerings, January 17, 1995.
<PAGE>
 
                                                         Exhibit No. ___ (RWF-2)
                                                                     Page 7 of 9


Deposition on behalf of El Paso Electric Company and Central and South West
Services, Inc. before the Federal Energy Regulatory Commission in Docket Nos.
EC94-7-000 and ER94-898-000 concerning "comparability" and other transmission
issues, December 22, 1994.

Prepared Rebuttal Testimony on behalf of Florida Power & Light Company before
the Federal Energy Regulatory Commission in Florida Power & Light Company,
Docket Nos. ER93-465-000, et al. concerning market power and competitive issues,
comparability and other transmission issues, wholesale electric service tariff
revisions, and issues concerning interchange contract revisions, December 16,
1994.

Prepared Rebuttal Testimony on behalf of El Paso Electric Company and Central
and South West Services, Inc., before the Federal Energy Regulatory Commission,
Dockets Nos. EC94-7-000 and ER94-898-000, concerning network transmission
service and point-to-point transmission service, December 12, 1994.

Prepared Direct Testimony on behalf of Midwest Power Systems, Inc. and Iowa-
Illinois Gas and Electric Company before the Federal Regulatory Commission,
Docket No. EC95-4-000, concerning competitive issues raised by their proposed
merger to form MidAmerican Energy Company, November 10, 1994.

Deposition on behalf of Florida Power Corporation in Orlando Cogen (I), Inc., et
al., v. Florida Power Corporation, Case No. 94-303-CIV-ORL-18, US District Court
in and for the Middle District of Florida, Orlando Division, involving a
contract dispute between FPC and one of its NUG suppliers, August 30, 1994.

Prepared Direct Testimony on Comparability Issues on behalf of Florida Power &
Light Company in Florida Power & Light Company, Docket Nos. ER93-465-000 and
ER93-922-000 concerning a discussion of the differences between types of
transmission services, usage of transmission systems by their owners,
transmission services that FPL provides, and how those services compare and
contrast with FPL's own uses of the transmission system, August 5, 1994.

Prepared Answering Testimony on behalf of Florida Power & Light Company in
Florida Power & Light Company, Docket Nos. ER93-465-000 and ER93-922-000
concerning (1) whether municipal systems should receive billing credits for
certain transmission facilities which they own which were argued to be part of
an "integrated" transmission grid, and (ii) FPL's obligation to sell wholesale
power under its Nuclear Regulatory Commission antitrust license conditions, July
7, 1994.

Deposition on behalf of Virginia Electric & Power Co. in re: Doswell Limited
Partnership v. Virginia Electric & Power Co., Case No. LW-730-4, Circuit Court
for the City of Richmond, involving an alleged fraud and breach of contract
relating to payments by VEPCO to one of its NUG suppliers, April 5, 1994.
<PAGE>
 
                                                         Exhibit No. ___ (RWF-2)
                                                                     Page 8 of 9


Prepared Final Rebuttal Testimony on behalf of Central Louisiana Electric
Company before the Federal Energy Regulatory Commission in Docket No. ER93-498-
000, examining an allegation of predatory pricing, March 16, 1994.

Prepared Rebuttal Testimony on behalf of Central Louisiana Electric Company
before the Federal Energy Regulatory Commission in Docket No. ER93-498-000,
examining an allegation of a municipal joint action agency that Central
Louisiana's contract to provide bulk power service to a new municipal system
customer constituted predatory pricing, December 23, 1993.

"Comments on the Commerce Commission's Draft Determination Concerning Trans
Power's Proposal to Recover Fixed/Sunk Transmission Costs," testimony prepared
at the request of The Electricity Industry Committee, New Zealand, November 30,
1993.

Prepared Direct Testimony on behalf of Florida Power & Light Company in Florida
Power & Light Company, Docket Nos. ER93-465-000 and ER93-922-000 concerning
competitive implications of wholesale tariff revisions, interchange contract
revisions and a proposed "open access" transmission tariff, November 26, 1993.

Deposition on behalf of Florida Power and Light in Florida Municipal Power
Agency v. Florida Power & Light Co. Case No. 92-35-CIV-ORL-22 concerning damage
related issues, July 21 and 22, 1993.

Affidavit on behalf of Florida Power and Light in Florida Municipal Power Agency
v. Florida Power & Light Co. Case No. 93-25-CIV-ORL-22 concerning damaged
related issues, July 14, 1993.

Prepared Direct Testimony on behalf of the Detroit Edison Company In the Matter
of the Application of the Association of Businesses Advocating Tariff Equity for
Approval of an experimental retail wheeling tariff for Consumers Power Company,
Case No. U-10143, and In the Matter on the Commission's own motion, to consider
approval of an experimental retail wheeling tariff for The Detroit Edison
Company, Case No. U-10176 before the Michigan Public Service Commission, March
1, 1993.

Deposition on behalf of Florida Power and Light in Florida Municipal Power
Agency v. Florida Power & Light Co. Case No. 92-35-CIV-ORL-22, February 25,
1993.

Affidavit on behalf of Iowa Power Inc. and Iowa Public Service Company, Federal
Energy Regulatory Commission, Concerning the Competitive Effects of a Merger of
the Two Companies, 1991.
<PAGE>
 
                                                         Exhibit No. ___ (RWF-2)
                                                                     Page 9 of 9


Testimony on behalf of Defendants Union Electric and Missouri Utilities, in City
of Malden, Missouri v. Union Electric Company and Missouri Utilities Company,
U.S. District Court, Eastern District of Missouri, Southeastern Division, Civil
Action No. 83-2533-C, 1988.

Testimony on behalf of Defendant Union Electric in City of Kirkwood, Missouri v.
Union Electric Company, U.S. District Court, Eastern District of Missouri,
Eastern Division, Civil Action No. 86-1787-C-6 (deposition testimony), 1987.

Testimony on behalf of Defendant Union Electric in Citizens Electric Company v.
Union Electric Company, U.S. District Court, Eastern District of Missouri,
Eastern Division, Civil Action No. 83-2756C(c), 1986.

Testimony on behalf of Advo-System, Inc., before the Postal Rate Commission,
Docket No. R84-1, Concerning Rates for Third Class Mail, 1984.

Testimony on behalf of D/FW Signal, Inc., before the Federal Communications
Commission, Docket No. CC83-945, Concerning Cellular Telephone Service in
Dallas-Fort Worth, 1983.

Testimony on behalf of the Department of Defense, before the Montana Public
Service Commission, Docket No. 82.2.8, Concerning Telephone Service Rate
Structure, 1982.

Testimony on behalf of Multnomah County, before the Public Utility Commissioner
of Oregon, Docket UF 3565, Concerning Telephone Service Rate Structure.

Testimony on behalf of the Louisiana Consumer League, before the Louisiana
Public Service Commission,  Docket No. U-14078, Concerning Marginal Cost Pricing
for Louisiana Power and Light Company, 1979.

Testimony on behalf of the State of Oregon, City of Portland, and County of
Multnomah, before the Public Utility Commissioner of Oregon, Dockets UF3342 and
UF3343, concerning Rates for Centrex and ESSX Telephone Service, 1978.


December, 1995
<PAGE>
 
                                                          Exhibit No.____(RWF-3)
                                                                     Page 1 of 3

                             LIST OF ABBREVIATIONS

AEC              Associated Electric Cooperative, Inc.
AECC             Arkansas Electric Cooperative Corporation
AEP              American Electric Power Company, Inc.
Ames             Ames Municipal Electric System
AP               Alabama Power Company
APL              Arkansas Power & Light Company
APS              Allegheny Power Service Corporation
Atlantic         Atlantic Municipal Utilities
Basin            Basin Electric Power Cooperative
Big Rivers       Big Rivers Electric Corporation
BPU              Kansas City Board of Public Utilities
Cajun            Cajun Electric Power Cooperative, Inc.
CBPC             Corn Belt Power Cooperative
CE               Commonwealth Edison Company
Cedar Falls      Cedar Falls Utilities
Centerior        Centerior Energy Corporation
Central Iowa     Central Iowa Power Cooperative
CILCO            Central Illinois Light Company
CINergy          CINergy
CIPS             Central Illinois Public Service Company
CLECO            Central Louisiana Electric Company, Inc.
Columbia         Columbia Water & Light Department
Consumers        Consumers Power Company
CPA              Cooperative Power Association
CPC              Central Power Electric Cooperative, Inc.
CPL              Carolina Power & Light Company
CSW              Central and South West Corporation
Dahlberg         Dahlberg Light & Power Company
DPC              Dairyland Power Cooperative
DPL              The Dayton Power & Light Company
Duke             Duke Power Company
Duquesne         Duquesne Light Company
ECAR             East Central Area Reliability Coordination Agreement
EEI              Electric Energy, Inc.
EKPC             East Kentucky Power Cooperative, Inc.
Eldridge         Eldridge Municipal Light Department
Empire           Empire District Electric Company
Entergy          Entergy Corporation
EPI              Entergy Power, Inc.
ERCOT            Electricity Reliability Counsel of Texas
ETEC             East Texas Electric Cooperative
FP&L             Florida Power & Light Company
Geneseo          Geneseo Municipal Utilities
GP               Georgia Power Company
GRDA             Grand River Dam Authority
Gulf             Gulf Power Company
Harlan           Harlan Municipal Utilities
Heartland        Heartland Consumers Power District
                 
                 
<PAGE>
 
                                                          Exhibit No.____(RWF-3)
                                                                     Page 2 of 3


Hoosier          Hoosier Energy Rural Electric Cooperative
IES              IES Industries, Inc.
IIGE             Iowa-Illinois Gas & Electric Company
IM               Indiana Michigan Power Company
IMEA             Illinois Municipal Electric Agency
IMPA             Indiana Municipal Power Agency
Independence     Independence Power & Light Department
IP               Illinois Power Company
IPL              Indianapolis Power & Light Company
IPW              Interstate Power Company
KAMO             KAMO Power
KCPL             Kansas City Power & Light  Company
KGE              Kansas Gas & Electric Company
KU               Kentucky Utilities
Lafayette        Lafayette Utilities System
LEPA             Louisiana Energy Power Authority
LES              Lincoln Electric System
LGE              Louisville Gas & Electric Company
MAIN             Mid-America Interconnected Network
MAPP             Mid-Continent Area Power Pool
MBMPA            Missouri Basin Municipal Power Agency
MEAN             Municipal Energy Agency of Nebraska
MEC              MidAmerican Energy Company
Midwest          Midwest Energy, Inc.
Minnkota         Minnkota Power Cooperative, Inc.
Miss P           Mississippi Power Company
MoPub            Missouri Public Service Company
MPL              Minnesota Power & Light Company
MPSI             Midwest Power Systems, Inc.
Mt. Carmel       Mt. Carmel Public Utility Company
Muscatine        Muscatine Power and Water
NCPC             North Central Power Co., Inc.
NIPSCO           Northern Indiana Public Service Company
NPPD             Nebraska Public Power District
NSP              Northern States Power Company
NTEC             Northeast Texas Electric Cooperative, Inc.
NWPS             Northwestern Public Service Company
OE               Ohio Edison Company
OGE              Oklahoma Gas & Electric Company
OMPA             Oklahoma Municipal Power Authority
OPPD             Omaha Public Power District
OTP              Otter Tail Power Company
OVEC             Ohio Valley Electric Company
Owensboro        Owensboro Municipal Utilities
Plaquemine       Plaquemine City Light & Water Department
PSI              PSI Energy, Inc.
PSO              Public Service Company of Oklahoma
Richmond         Richmond Power & Light
Savannah         Savannah Electric and Power Company
SERC             Southeastern Electric Reliability Council Region
Sho-Me           Sho-Me Power Corp.
SIGECO           Southern Indiana Gas & Electric Company
                 
                 
                 
<PAGE>
 
                                                          Exhibit No.____(RWF-3)
                                                                     Page 3 of 3

Sikeston         Sikeston Board of Municipal Utilities
SIPCO            Southern Illinois Power Cooperative
SJLP             St. Joseph Light & Power Company
SMEPA            South Mississippi Electric Power Association
SMMPA            Southern Minnesota Municipal Power Agency
Southern         The Southern Company
Soyland          Soyland Power Cooperative, Inc.
SPA              Southwestern Power Administration
SPP              Southwest Power Pool
Springfield, IL  Springfield City Water, Light & Power
Springfield, MO  Springfield City Utilities
SRMPA            Sam Rayburn Municipal Power Agency
Sunflower        Sunflower Electric Power Corporation, Inc.
SWEPCO           Southwestern Electric Power Company
SWPS             Southwestern Public Service Company
TVA              Tennessee Valley Authority
UE               Union Electric Company
UPA              United Power Association
USEC             United States Enrichment Corporation
Utilicorp        Utilicorp United, Inc.
VEPCO            Virginia Electric and Power Company
WAPA             Western Area Power Administration
Waverly          Waverly Light & Power
WEPCO            Wisconsin Electric Power Company
West Plains      West Plains Electric Cooperative, Inc.
WF               Western Farmers Electric Cooperative
WPL              Wisconsin Power & Light Company
WPPI             Wisconsin Public Power Inc. System
WPSC             Wisconsin Public Service Corporation
WR               Western Resources
WVPA             Wabash Valley Power Association
<PAGE>
 
                                                           Exhibit No.___(RWF-4)
                                                                     Page 1 of 2

                        INTERCONNECTIONS OF UE AND CIPS

<TABLE>
<CAPTION>
 
    UTILITIES INTERCONNECTED              UTILITIES INTERCONNECTED WITH 
            WITH UE                                    CIPS

 
- - - - - - - - - - - - - - - - - - - DIRECT - - - - - - - - - - - - - - - - - - -
<S>                                       <C>

           AEC*                                      CE*
           CIPS*                                     CILCO*
           Columbia*                                 Springfield*
           EEI*                                      EEI*
           IES*                                      IES* (1998)
           IP*                                       IMEA*
           KCPL*                                     IMPA*
           MEC*                                      IP*
           MoPub*                                    IM/AEP*
           SPA*                                      NIPSCO*
           TVA*                                      PSI/CINergy*
                                                     Soyland*
                                                     SIPCO*
                                                     UE*
                                                     TVA*
                                                     WVPA*
 
- - - - - - - - - - - - - - - - - CONTRACTUAL ONLY - - - - - - - - - - - - - - - -
           APL/Entergy                               KU
           IPW
           KGE/WR
           KU
           NSP
           PSO/CSW
           SJLP*
 
</TABLE>


Utilities with asterisk (*) are potential receipt and delivery points under
merged firms' open access tariffs.

Utilities in bold are interconnected with both UE and CIPS.

NOTE:  See Exhibit___(RWF-3) for explanation of abbreviations.

<PAGE>
 
                                                          EXHIBIT NO. __ (RWF-4)
                                                                     Page 2 of 2

                        INTERCONNECTIONS OF UE AND CIPS

                             [GRAPH APPEARS HERE]


     Page 2 to Exhibit RWF-4 of Mr. Frame's testimony consists of a schematic
drawing of the interconnections of UE and CIPS. This exhibit will be provided to
the Commission upon request.
<PAGE>
 
                                                           Exhibit No.___(RWF-5)


                         POSTMERGER INTERCONNECTIONS OF
                       ENTITIES INTERCONNECTED WITH BOTH
                                  UE AND CIPS


<TABLE>
<CAPTION>
 
 
ENTITY                                   POSTMERGER INTERCONNECTIONS
- ------                                   ---------------------------
<S>                          <C>
IES (8)*                     Merged Entity, AEC, CBPC, Central Iowa, MEC, IPW,
                             NSP, WAPA

IP (9)                       Merged Entity, AEP, CE, CILCO, KU, MEC, SIPCO,
                             Springfield, TVA

KU (10)                      Merged Entity, AEP, Big Rivers, CINergy, EKPC, IP,
                             LGE, OVEC, Owensboro, TVA
 
TVA (11)                     Merged Entity, AEP, Big Rivers, CPL, Duke, EKPC,
                             Entergy, IP, KU, LGE, Southern
 
</TABLE>

See Exhibit No.___(RWF-3) for a list of abbreviations.

*IES is interconnected with UE both directly and through the East Line
Agreement.  CIPS has a limited purpose interconnection now with IES and will add
an additional interconnection in 1998.

Note:  List of entities interconnected with both UE and CIPS excludes EEI.
Also, EEI is not listed as a separate interconnection of IP, KU and TVA for
reasons explained in text.
<PAGE>
 
                                                             Exhibit ___ (RWF-6)

                        INTERCHANGE SALES AND PURCHASES
                          FOR UTILITIES INTERCONNECTED
                             WITH BOTH UE AND CIPS
                                   1991-1994
<TABLE>
<CAPTION>
 
 
                                           IES     IP     KU     TVA*
                                          -----  ------  -----  ------
 
<S>                                       <C>    <C>     <C>    <C>
TOTAL INTERCHANGE SALES (GWH)             9,212   9,726    643  16,986
     SALES TO UE (%)                       10.6     2.5    2.8     5.8
     SALES TO CIPS (%)                        0     1.2    2.1    10.5
     SALES TO UE/CIPS COMBINED (%)         10.6     3.7    4.9    16.3
 
 
TOTAL INTERCHANGE PURCHASES (GWH)         7,432  12,478  4,674  17,686
     PURCHASES FROM UE (%)                 31.5    17.6   20.6     7.2
     PURCHASES FROM CIPS (%)                  0     0.6    1.8     0.9
     PURCHASES FROM UE/CIPS COMBINED(%)    31.5    18.2   22.4     8.1
 
</TABLE>




*DATA FOR TVA COVER ONLY 1992-1994.
<PAGE>
 
<TABLE>
<CAPTION>

                                                                Exhibit__(RWF-7)
                             UNCOMMITTED CAPACITY
                   OF UE, CIPS AND INTERCONNECTED UTILITIES
                              18% RESERVE MARGIN*



                                      1996       1996 Share
                                                 (1)/Sum:(1)
                                       (1)           (2)
                                   ==========    ===========
                  UE                        0 MW         0.0%
                  CIPS                     98            3.4
                  ==========================================
                  <S>              <C>           <C> 
                  AMEREN                   98            3.4
                  AEC                     342           12.0
                  AEP                       0            0.0
                  CE                      117            4.1
                  CILCO                     0            0.0
                  CINergy                   0            0.0
                  Columbia                  3            0.1
                  CSW                     112            3.9
                  Entergy                 180            6.3
                  IES                       0            0.0
                  IMEA                      0            0.0
                  IMPA                      0            0.0
                  IP                      207            7.2
                  IPW                      89            3.1
                  KCPL                    163            5.7
                  KU                      103            3.6
                  MEC                     219            7.7
                  MoPub                    56            2.0
                  NIPSCO                   68            2.4
                  NSP                     341           12.0
                  SIPCO                    52            1.8
                  SJLP                      2            0.1
                  Soyland                   0            0.0
                  SPA                       0            0.0
                  Springfield, IL           0            0.0
                  TVA                     551           19.3
                  WR                      153            5.4
                  WVPA                      0            0.0
                                     --------       --------
                    TOTAL               2,856 MW         100%
</TABLE> 

             SOURCES:
             1995 ECAR OE-411
             1995 MAIN OE-411
             1995 MAPP OE-411
             1995 SERC OE-411
             1995 SPP OE-411
             CIPS: Exhibit No.___(GWM-2)
             Data provided by MidAmerican Energy Company
             Data provided by IES Utilities
             Union Electric, Energy Resource Plan, June 1995

             *Computations use 18 percent reserve margins
             for all utilities except SPA, where it is 9.9 percent


<PAGE>
 
                                                              Exhibit ___(RWF-8)



                             UNCOMMITTED CAPACITY
                   OF UE, CIPS AND INTERCONNECTED UTILITIES
                              15% RESERVE MARGIN*




                                    1996           1996 Share
                                                   (1)/Sum:(1)
                                     (1)               (2)
                                =============     =============
                  UE                    106 MW             1.7%
                  CIPS                  166                2.6
                  ===============================================

                  AMEREN                272                4.2
                  AEC                   423                6.6
                  AEP                   103                1.6
                  CE                    679               10.6
                  CILCO                  18                0.3
                  CINergy               254                4.0
                  Columbia                9                0.1
                  CSW                   323                5.0
                  Entergy               715               11.2
                  IES                     0                0.0
                  IMEA                    0                0.0
                  IMPA                    0                0.0
                  IP                    318                5.0
                  IPW                   120                1.9
                  KCPL                  254                4.0
                  KU                    205                3.2
                  MEC                   324                5.1
                  MoPub                  87                1.4
                  NIPSCO                150                2.3
                  NSP                   544                8.5
                  SIPCO                  59                0.9
                  SJLP                   13                0.2
                  Soyland                 0                0.0
                  SPA                     0                0.0
                  Springfield, IL         0                0.0
                  TVA                 1,253               19.6
                  WR                    281                4.4
                  WVPA                    0                0.0
                                   --------           --------
                    TOTAL             6,402 MW             100%


                  SOURCES:
                  1995 ECAR OE-411
                  1995 MAIN OE-411
                  1995 MAPP OE-411
                  1995 SERC OE-411
                  1995 SPP OE-411
                  CIPS: Exhibit No.___(GWM-2)
                  Data provided by MidAmerican Energy Company
                  Data provided by IES Utilities
                  Union Electric, Energy Resource Plan, June 1995

                  *Computations use 15 percent reserve margins
                  for all utilities except SPA, where it is 9.9 percent

<PAGE>
 
                                                              EXHIBIT __ (RWF-9)
                                                                     PAGE 1 OF 2

                             FIRST TIER UTILITIES

                             [GRAPH APPEARS HERE]



     Page 1 of Exhibit RWF-9 to Mr. Frame's testimony consists of a schematic 
diagram of first-tier utilities.  This diagram will be provided to the 
Commission upon request.
<PAGE>
 
                                                           Exhibit ___ (RWF _ 9)
                                                                     Page 2 of 2

                              FIRST TIER UTILITIES

<TABLE>
<CAPTION>
                                           POSTMERGER              POSTMERGER
   A'S FIRST           PREMERGER          MARKET/BEFORE            MARKET/AFTER       
TIER UTILITIES           MARKET            OPEN ACCESS             OPEN ACCESS
- ---------------------------------------------------------------------------------------
<S>                 <C>                 <C>                <C> 
      B                  N/A                   N/A                     N/A
      F             A, B, E, G, L       A-B, E, G, L       A-B, C*, D*, E, G, H*, L
      G             A, F, H, K, L       A-B, F, H, K, L    A-B, C*, D*, E*, F, H, K, L
      H             A, B, C, G, I, J    A-B, C, G, I, J    A-B, C, D*, E*, F*, G, I, J,
</TABLE>


<TABLE>
<CAPTION>
                                           POSTMERGER              POSTMERGER
   B'S FIRST           PREMERGER          MARKET/BEFORE            MARKET/AFTER     
TIER UTILITIES           MARKET            OPEN ACCESS             OPEN ACCESS
- ---------------------------------------------------------------------------------------
<S>                 <C>                 <C>                <C> 
      A                  N/A                   N/A                       N/A
      C             B, D, H, I, N       A-B, D, H, I, N    A-B, D, E*, F*, G*, H, I, N
      D             B, C, E, M          A-B, C, E, M       A-B, C, E, F*, G*, H*, M
      E             B, D, F, M          A-B, D, F, M       A-B, C*, D, F, G*, H*, M
      F             A, B, E, G, L       A-B, E, G, L       A-B, C*, D*, E, G, H*, L
      H             A, B, C, G, I, J    A-B, C, G, I, J    A-B, C, D*, E*, F*, G, I, J
</TABLE>

*  Utilities added as a result of open acces tariff

<PAGE>
 
                                                               Exhibit__(RWF-10)
                                                                    Page 1 of 27
                         FIRST TIER MARKET CENTERED ON
                                      AEC



                    Participants              Relationship
                ======================    ====================
                AEC                       Center
                UE                        First Tier (Pre Merger)
                CSW                       First Tier
                Empire                    First Tier
                Entergy                   First Tier
                IES                       First Tier
                KCPL                      First Tier
                MEC                       First Tier
                MoPub                     First Tier
                SJLP                      First Tier
                WR                        First Tier
                Columbia                  First Tier
                GRDA                      First Tier
                LES                       First Tier
                NPPD                      First Tier
                OPPD                      First Tier
                SPA                       First Tier
                AMEREN                    First Tier (Post Merger)
                AEP                       AMEREN Open Access Tariff
                CILCO                     AMEREN Open Access Tariff
                CINergy                   AMEREN Open Access Tariff
                CE                        AMEREN Open Access Tariff
                IP                        AMEREN Open Access Tariff
                NIPSCO                    AMEREN Open Access Tariff
                SIPCO                     AMEREN Open Access Tariff
                Soyland                   AMEREN Open Access Tariff
                WVPA                      AMEREN Open Access Tariff
                IMEA                      AMEREN Open Access Tariff
                IMPA                      AMEREN Open Access Tariff
                Springfield, IL           AMEREN Open Access Tariff

<PAGE>
 
                                                             Exhibit ___(RWF-10)
                                                                    Page 2 of 27




                         FIRST TIER MARKET CENTERED ON
                                      AEP



                   Participants               Relationship
                ==================         ===================

                AEP                        Center
                CIPS                       First Tier (Pre Merger)
                APS                        First Tier
                CPL                        First Tier
                Centerior                  First Tier
                CINergy                    First Tier
                CE                         First Tier
                Consumers                  First Tier
                DPL                        First Tier
                Duke                       First Tier
                Duquesne                   First Tier
                IP                         First Tier
                IPL                        First Tier
                KU                         First Tier
                NIPSCO                     First Tier
                OE                         First Tier
                VEPCO                      First Tier
                EKPC                       First Tier
                OVEC                       First Tier
                Richmond                   First Tier
                TVA                        First Tier
                AMEREN                     First Tier (Post Merger)
                CILCO                      AMEREN Open Access Tariff
                IES                        AMEREN Open Access Tariff
                KCPL                       AMEREN Open Access Tariff
                MEC                        AMEREN Open Access Tariff
                MoPub                      AMEREN Open Access Tariff
                SJLP                       AMEREN Open Access Tariff
                AEC                        AMEREN Open Access Tariff
                SIPCO                      AMEREN Open Access Tariff
                Soyland                    AMEREN Open Access Tariff
                WVPA                       AMEREN Open Access Tariff
                Columbia                   AMEREN Open Access Tariff
                IMEA                       AMEREN Open Access Tariff
                IMPA                       AMEREN Open Access Tariff
                Springfield, IL            AMEREN Open Access Tariff
                SPA                        AMEREN Open Access Tariff
           
<PAGE>
 
                                                             Exhibit ___(RWF-10)
                                                                    Page 3 of 27




                         FIRST TIER MARKET CENTERED ON
                                      CE



                    Participants              Relationship
                ===================        ===================
            
                CE                         Center
                CIPS                       First Tier (Pre Merger)
                AEP                        First Tier
                CILCO                      First Tier
                IP                         First Tier
                IPW                        First Tier
                MEC                        First Tier
                NIPSCO                     First Tier
                WEPCO                      First Tier
                WPL                        First Tier
                AMEREN                     First Tier (Post Merger)
                CINergy                    AMEREN Open Access Tariff
                IES                        AMEREN Open Access Tariff
                KCPL                       AMEREN Open Access Tariff
                MoPub                      AMEREN Open Access Tariff
                SJLP                       AMEREN Open Access Tariff
                AEC                        AMEREN Open Access Tariff
                SIPCO                      AMEREN Open Access Tariff
                Soyland                    AMEREN Open Access Tariff
                WVPA                       AMEREN Open Access Tariff
                Columbia                   AMEREN Open Access Tariff
                IMEA                       AMEREN Open Access Tariff
                IMPA                       AMEREN Open Access Tariff
                Springfield, IL            AMEREN Open Access Tariff
                SPA                        AMEREN Open Access Tariff
<PAGE>
 
                                                             Exhibit ___(RWF-10)
                                                                    Page 4 of 27



                         FIRST TIER MARKET CENTERED ON
                                     CILCO



                   Participants               Relationship
                ==================         ===================

                CILCO                      Center
                CIPS                       First Tier (Pre Merger)
                CE                         First Tier
                IP                         First Tier
                Springfield, IL            First Tier
                AMEREN                     First Tier (Post Merger)
                AEP                        AMEREN Open Access Tariff
                CINergy                    AMEREN Open Access Tariff
                IES                        AMEREN Open Access Tariff
                KCPL                       AMEREN Open Access Tariff
                MEC                        AMEREN Open Access Tariff
                MoPub                      AMEREN Open Access Tariff
                NIPSCO                     AMEREN Open Access Tariff
                SJLP                       AMEREN Open Access Tariff
                AEC                        AMEREN Open Access Tariff
                SIPCO                      AMEREN Open Access Tariff
                Soyland                    AMEREN Open Access Tariff
                WVPA                       AMEREN Open Access Tariff
                Columbia                   AMEREN Open Access Tariff
                IMEA                       AMEREN Open Access Tariff
                IMPA                       AMEREN Open Access Tariff
                SPA                        AMEREN Open Access Tariff

<PAGE>
 
                                                             Exhibit ___(RWF-10)
                                                                    Page 5 of 27




                         FIRST TIER MARKET CENTERED ON
                                    CINergy



                   Participants               Relationship
                =================          ===================

                CINergy                    Center
                CIPS                       First Tier (Pre Merger)
                AEP                        First Tier
                DPL                        First Tier
                IPL                        First Tier
                KU                         First Tier
                LGE                        First Tier
                NIPSCO                     First Tier
                SIGECO                     First Tier
                EKPC                       First Tier
                Hoosier                    First Tier
                OVEC                       First Tier
                WVPA                       First Tier
                IMPA                       First Tier
                AMEREN                     First Tier (Post Merger)
                CILCO                      AMEREN Open Access Tariff
                CE                         AMEREN Open Access Tariff
                IES                        AMEREN Open Access Tariff
                IP                         AMEREN Open Access Tariff
                KCPL                       AMEREN Open Access Tariff
                MEC                        AMEREN Open Access Tariff
                MoPub                      AMEREN Open Access Tariff
                SJLP                       AMEREN Open Access Tariff
                AEC                        AMEREN Open Access Tariff
                SIPCO                      AMEREN Open Access Tariff
                Soyland                    AMEREN Open Access Tariff
                Columbia                   AMEREN Open Access Tariff
                IMEA                       AMEREN Open Access Tariff
                Springfield, IL            AMEREN Open Access Tariff
                SPA                        AMEREN Open Access Tariff

<PAGE>
 
                                                             Exhibit ___(RWF-10)
                                                                    Page 6 of 27






                         FIRST TIER MARKET CENTERED ON
                                   Columbia



                   Participants               Relationship
                ==================         ===================

                Columbia                   Center
                UE                         First Tier (Pre Merger)
                AEC                        First Tier
                AMEREN                     First Tier (Post Merger)
                AEP                        AMEREN Open Access Tariff
                CILCO                      AMEREN Open Access Tariff
                CINergy                    AMEREN Open Access Tariff
                CE                         AMEREN Open Access Tariff
                IES                        AMEREN Open Access Tariff
                IP                         AMEREN Open Access Tariff
                KCPL                       AMEREN Open Access Tariff
                MEC                        AMEREN Open Access Tariff
                MoPub                      AMEREN Open Access Tariff
                NIPSCO                     AMEREN Open Access Tariff
                SJLP                       AMEREN Open Access Tariff
                SIPCO                      AMEREN Open Access Tariff
                Soyland                    AMEREN Open Access Tariff
                WVPA                       AMEREN Open Access Tariff
                IMEA                       AMEREN Open Access Tariff
                IMPA                       AMEREN Open Access Tariff
                Springfield, IL            AMEREN Open Access Tariff
                SPA                        AMEREN Open Access Tariff

<PAGE>
 
                                                             Exhibit ___(RWF-10)
                                                                    Page 7 of 27












                         FIRST TIER MARKET CENTERED ON
                                      CSW



                   Participants               Relationship
                ==================         ===================

                CSW                        Center
                UE                         First Tier (Pre Merger)
                CLECO                      First Tier
                Empire                     First Tier
                Entergy                    First Tier
                OGE                        First Tier
                SWPS                       First Tier
                AECC                       First Tier
                WF                         First Tier
                WR                         First Tier
                AEC                        First Tier
                GRDA                       First Tier
                Springfield, MO            First Tier
                SPA                        First Tier
                AMEREN                     First Tier (Post Merger)

<PAGE>
 
                                                             Exhibit ___(RWF-10)
                                                                    Page 8 of 27












                         FIRST TIER MARKET CENTERED ON
                                    Entergy



                  Participants                Relationship
                =================          ===================

                Entergy                    Center
                UE                         First Tier (Pre Merger)
                CLECO                      First Tier
                CSW                        First Tier
                Southern                   First Tier
                AEC                        First Tier
                Cajun                      First Tier
                Lafayette                  First Tier
                Plaquemine                 First Tier
                TVA                        First Tier
                AMEREN                     First Tier (Post Merger)

<PAGE>
 
                                                                Exhibit_(RWF-10)
                                                                    Page 9 of 27




                         FIRST TIER MARKET CENTERED ON
                                      IES



              Participants                 Relationship
          ===================          ===================

          IES                          Center
          CIPS                         First Tier (Pre Merger, 1998)
          UE                           First Tier (Pre Merger)
          IPW                          First Tier
          MEC                          First Tier
          NSP                          First Tier
          AEC                          First Tier
          CBPC                         First Tier
          Central Iowa                 First Tier
          WAPA                         First Tier
          AMEREN                       First Tier (Post Merger)
          AEP                          AMEREN Open Access Tariff
          CE                           AMEREN Open Access Tariff
          CILCO                        AMEREN Open Access Tariff
          CINergy                      AMEREN Open Access Tariff
          IP                           AMEREN Open Access Tariff
          KCPL                         AMEREN Open Access Tariff
          MoPub                        AMEREN Open Access Tariff
          NIPSCO                       AMEREN Open Access Tariff
          SJLP                         AMEREN Open Access Tariff
          SIPCO                        AMEREN Open Access Tariff
          Soyland                      AMEREN Open Access Tariff
          WVPA                         AMEREN Open Access Tariff
          Columbia                     AMEREN Open Access Tariff
          IMEA                         AMEREN Open Access Tariff
          IMPA                         AMEREN Open Access Tariff
          Springfield, IL              AMEREN Open Access Tariff
          SPA                          AMEREN Open Access Tariff
<PAGE>
 
                                                                Exhibit_(RWF-10)
                                                                  Page 10 of 27 




                         FIRST TIER MARKET CENTERED ON
                                     IMEA



              Participants                 Relationship
          ===================          ===================

          IMEA                         Center
          CIPS                         First Tier (Pre Merger)
          AMEREN                       First Tier (Post Merger)
          AEP                          AMEREN Open Access Tariff
          CILCO                        AMEREN Open Access Tariff
          CINergy                      AMEREN Open Access Tariff
          CE                           AMEREN Open Access Tariff
          IES                          AMEREN Open Access Tariff
          IP                           AMEREN Open Access Tariff
          KCPL                         AMEREN Open Access Tariff
          MEC                          AMEREN Open Access Tariff
          MoPub                        AMEREN Open Access Tariff
          NIPSCO                       AMEREN Open Access Tariff
          SJLP                         AMEREN Open Access Tariff
          AEC                          AMEREN Open Access Tariff
          SIPCO                        AMEREN Open Access Tariff
          Soyland                      AMEREN Open Access Tariff
          WVPA                         AMEREN Open Access Tariff
          Columbia                     AMEREN Open Access Tariff
          IMPA                         AMEREN Open Access Tariff
          Springfield, IL              AMEREN Open Access Tariff
          SPA                          AMEREN Open Access Tariff
<PAGE>
 
                                                                Exhibit_(RWF-10)
                                                                   Page 11 of 27




                         FIRST TIER MARKET CENTERED ON
                                     IMPA



              Participants                 Relationship
          ===================          ===================

          IMPA                         Center
          CIPS                         First Tier (Pre Merger)
          CINergy                      First Tier
          IPL                          First Tier
          KU                           First Tier
          LGE                          First Tier
          NIPSCO                       First Tier
          SIGECO                       First Tier
          Hoosier                      First Tier
          WVPA                         First Tier
          AMEREN                       First Tier (Post Merger)
          AEP                          AMEREN Open Access Tariff
          CILCO                        AMEREN Open Access Tariff
          CE                           AMEREN Open Access Tariff
          IES                          AMEREN Open Access Tariff
          IP                           AMEREN Open Access Tariff
          KCPL                         AMEREN Open Access Tariff
          MEC                          AMEREN Open Access Tariff
          MoPub                        AMEREN Open Access Tariff
          SJLP                         AMEREN Open Access Tariff
          AEC                          AMEREN Open Access Tariff
          SIPCO                        AMEREN Open Access Tariff
          Soyland                      AMEREN Open Access Tariff
          Columbia                     AMEREN Open Access Tariff
          IMEA                         AMEREN Open Access Tariff
          Springfield, IL              AMEREN Open Access Tariff
          SPA                          AMEREN Open Access Tariff
<PAGE>
 
                                                                Exhibit_(RWF-10)
                                                                  Page 12 of 27




                         FIRST TIER MARKET CENTERED ON
                                      IP



              Participants                 Relationship
          ===================          ===================

          IP                           Center
          CIPS                         First Tier (Pre Merger)
          UE                           First Tier (Pre Merger)
          AEP                          First Tier
          CILCO                        First Tier
          CE                           First Tier
          KU                           First Tier
          MEC                          First Tier
          SIPCO                        First Tier
          Springfield, IL              First Tier
          TVA                          First Tier
          AMEREN                       First Tier (Post Merger)
          CINergy                      AMEREN Open Access Tariff
          IES                          AMEREN Open Access Tariff
          KCPL                         AMEREN Open Access Tariff
          MoPub                        AMEREN Open Access Tariff
          NIPSCO                       AMEREN Open Access Tariff
          SJLP                         AMEREN Open Access Tariff
          AEC                          AMEREN Open Access Tariff
          Soyland                      AMEREN Open Access Tariff
          WVPA                         AMEREN Open Access Tariff
          Columbia                     AMEREN Open Access Tariff
          IMEA                         AMEREN Open Access Tariff
          IMPA                         AMEREN Open Access Tariff
          SPA                          AMEREN Open Access Tariff
<PAGE>
 
                                                               Exhibit__(RWF-10)
                                                                   Page 13 of 27

                         FIRST TIER MARKET CENTERED ON
                                      IPW



              Participants         Relationship
           ===================  ===================

           IPW                  Center
           UE                   First Tier (Pre Merger)
           CE                   First Tier
           DPC                  First Tier
           IES                  First Tier
           KCPL                 First Tier
           MEC                  First Tier
           NSP                  First Tier
           SJLP                 First Tier
           CBPC                 First Tier
           Central Iowa         First Tier
           SMMPA                First Tier
           OPPD                 First Tier
           AMEREN               First Tier (Post Merger)
<PAGE>
 
                                                               Exhibit__(RWF-10)
                                                                   Page 14 of 27
                         FIRST TIER MARKET CENTERED ON
                                     KCPL



              Participants         Relationship
           ===================  ===================

           KCPL                 Center
           UE                   First Tier (Pre Merger)
           Empire               First Tier
           IPW                  First Tier
           MEC                  First Tier
           MoPub                First Tier
           NSP                  First Tier
           SJLP                 First Tier
           WR                   First Tier
           AEC                  First Tier
           BPU                  First Tier
           Independence         First Tier
           LES                  First Tier
           NPPD                 First Tier
           OPPD                 First Tier
           AMEREN               First Tier (Post Merger)
           AEP                  AMEREN Open Access Tariff
           CILCO                AMEREN Open Access Tariff
           CINergy              AMEREN Open Access Tariff
           CE                   AMEREN Open Access Tariff
           IES                  AMEREN Open Access Tariff
           IP                   AMEREN Open Access Tariff
           NIPSCO               AMEREN Open Access Tariff
           SIPCO                AMEREN Open Access Tariff
           Soyland              AMEREN Open Access Tariff
           WVPA                 AMEREN Open Access Tariff
           Columbia             AMEREN Open Access Tariff
           IMEA                 AMEREN Open Access Tariff
           IMPA                 AMEREN Open Access Tariff
           Springfield, IL      AMEREN Open Access Tariff
           SPA                  AMEREN Open Access Tariff
<PAGE>
 
                                                               Exhibit__(RWF-10)
                                                                   Page 15 of 27

                        FIRST TIER MARKET CENTERED ON
                                      KU



              Participants         Relationship
           ===================  ===================

           KU                   Center
           CIPS                 First Tier (Pre Merger)
           UE                   First Tier (Pre Merger)
           AEP                  First Tier
           CINergy              First Tier
           IP                   First Tier
           LGE                  First Tier
           EKPC                 First Tier
           OVEC                 First Tier
           Big Rivers           First Tier
           Owensboro            First Tier
           TVA                  First Tier
           AMEREN               First Tier (Post Merger)
<PAGE>
 
                                                              Exhibit___(RWF-10)
                                                                   Page 16 of 27


                         FIRST TIER MARKET CENTERED ON
                                      MEC


<TABLE>
<CAPTION>

            Participants              Relationship
           ===============      =========================
           <S>                  <C>

           MEC                  Center
           UE                   First Tier (Pre Merger)
           CE                   First Tier
           IES                  First Tier
           IP                   First Tier
           IPW                  First Tier
           KCPL                 First Tier
           Muscatine            First Tier
           NSP                  First Tier
           SJLP                 First Tier
           CBPC                 First Tier
           Central Iowa         First Tier
           AEC                  First Tier
           Ames                 First Tier
           Atlantic             First Tier
           Cedar Falls          First Tier
           Eldridge             First Tier
           Geneseo              First Tier
           Harlan               First Tier
           LES                  First Tier
           Waverly              First Tier
           NPPD                 First Tier
           OPPD                 First Tier
           WAPA                 First Tier
           AMEREN               First Tier (Post Merger)
           AEP                  AMEREN Open Access Tariff
           CILCO                AMEREN Open Access Tariff
           CINergy              AMEREN Open Access Tariff
           MoPub                AMEREN Open Access Tariff
           SIPCO                AMEREN Open Access Tariff
           Soyland              AMEREN Open Access Tariff
           WVPA                 AMEREN Open Access Tariff
           Columbia             AMEREN Open Access Tariff
           IMEA                 AMEREN Open Access Tariff
           IMPA                 AMEREN Open Access Tariff
           Springfield, IL      AMEREN Open Access Tariff
           SPA                  AMEREN Open Access Tariff
</TABLE> 

<PAGE>
 
                                                               Exhibit__(RWF-10)
                                                               page 17 of 27

                         FIRST TIER MARKET CENTERED ON
                                     MoPub           



                      Participants           Relationship
                ===================  ========================

                MoPub                Center
                UE                   First Tier (Pre Merger)
                Empire               First Tier
                KCPL                 First Tier
                WR                   First Tier
                AEC                  First Tier
                KAMO                 First Tier
                Independence         First Tier
                AMEREN               First Tier (Post Merger)
                AEP                  AMEREN Open Access Tariff
                CILCO                AMEREN Open Access Tariff
                CINergy              AMEREN Open Access Tariff
                CE                   AMEREN Open Access Tariff
                IES                  AMEREN Open Access Tariff
                IP                   AMEREN Open Access Tariff
                MEC                  AMEREN Open Access Tariff
                NIPSCO               AMEREN Open Access Tariff
                SJLP                 AMEREN Open Access Tariff
                SIPCO                AMEREN Open Access Tariff
                Soyland              AMEREN Open Access Tariff
                WVPA                 AMEREN Open Access Tariff
                Columbia             AMEREN Open Access Tariff
                IMEA                 AMEREN Open Access Tariff
                IMPA                 AMEREN Open Access Tariff
                Springfield, IL      AMEREN Open Access Tariff
                SPA                  AMEREN Open Access Tariff

<PAGE>
 
<TABLE>
<CAPTION>
                                                               Exhibit__(RWF-10)
                                                                   Page 18 of 27

                    FIRST TIER MARKET CENTERED ON
                               NIPSCO




                    Participants           Relationship
                ===================  =========================

                <S>                  <C>
                NIPSCO               Center
                CIPS                 First Tier (Pre Merger)
                AEP                  First Tier
                CINergy              First Tier
                CE                   First Tier
                Consumers            First Tier
                AMEREN               First Tier (Post Merger)
                CILCO                AMEREN Open Access Tariff
                IES                  AMEREN Open Access Tariff
                IP                   AMEREN Open Access Tariff
                KCPL                 AMEREN Open Access Tariff
                MEC                  AMEREN Open Access Tariff
                MoPub                AMEREN Open Access Tariff
                SJLP                 AMEREN Open Access Tariff
                AEC                  AMEREN Open Access Tariff
                SIPCO                AMEREN Open Access Tariff
                Soyland              AMEREN Open Access Tariff
                WVPA                 AMEREN Open Access Tariff
                Columbia             AMEREN Open Access Tariff
                IMEA                 AMEREN Open Access Tariff
                IMPA                 AMEREN Open Access Tariff
                Springfield, IL      AMEREN Open Access Tariff
                SPA                  AMEREN Open Access Tariff



</TABLE>


<PAGE>
 
<TABLE>
<CAPTION>
                                                               Exhibit__(RWF-10)
                                                                   Page 19 of 27


                              FIRST TIER MARKET CENTERED ON
                                            NSP


                       Participants               Relationship
                   ===================       ======================
                   <S>                       <C> 
                        NSP                  Center
                        UE                   First Tier (Pre Merger)
                        Dahlberg             First Tier
                        IES                  First Tier
                        IPW                  First Tier
                        KCPL                 First Tier
                        MEC                  First Tier
                        MH                   First Tier
                        MPL                  First Tier
                        NCPC                 First Tier
                        NWPS                 First Tier
                        OPPD                 First Tier
                        OTP                  First Tier
                        SJLP                 First Tier
                        UPA                  First Tier
                        WEPCO                First Tier
                        WPL                  First Tier
                        WPSC                 First Tier
                        Basin                First Tier
                        CPA                  First Tier
                        CPC                  First Tier
                        DPC                  First Tier
                        Minnkota             First Tier
                        Heartland            First Tier
                        MBMPA                First Tier
                        SMMPA                First Tier
                        WAPA                 First Tier
                        AMEREN               First Tier (Post Merger)















































</TABLE>
<PAGE>
 
                                                               Exhibit__(RWF-10)
                                                                   Page 20 of 27




                         FIRST TIER MARKET CENTERED ON
                                     SIPCO

<TABLE>
<CAPTION>

                       Participants         Relationship
                   ===================  ===================
                   <S>                  <C>  
                   SIPCO                Center
                   CIPS                 First Tier (Pre Merger)
                   IP                   First Tier
                   AMEREN               First Tier (Post Merger)
                   AEP                  AMEREN Open Access Tariff
                   CILCO                AMEREN Open Access Tariff
                   CINergy              AMEREN Open Access Tariff
                   CE                   AMEREN Open Access Tariff
                   IES                  AMEREN Open Access Tariff
                   KCPL                 AMEREN Open Access Tariff
                   MEC                  AMEREN Open Access Tariff
                   MoPub                AMEREN Open Access Tariff
                   NIPSCO               AMEREN Open Access Tariff
                   SJLP                 AMEREN Open Access Tariff
                   AEC                  AMEREN Open Access Tariff
                   Soyland              AMEREN Open Access Tariff
                   WVPA                 AMEREN Open Access Tariff
                   Columbia             AMEREN Open Access Tariff
                   IMEA                 AMEREN Open Access Tariff
                   IMPA                 AMEREN Open Access Tariff
                   Springfield, IL      AMEREN Open Access Tariff
                   SPA                  AMEREN Open Access Tariff
</TABLE>
<PAGE>
 
                                                                Exhibit_(RWF-10)
                                                                   Page 21 of 27

                         FIRST TIER MARKET CENTERED ON
                                     SJLP

                         Participants         Relationship
                      ===================  ===================

                      SJLP                 Center
                      UE                   First Tier (Pre Merger)
                      IPW                  First Tier
                      KCPL                 First Tier
                      MEC                  First Tier
                      AEC                  First Tier
                      Independence         First Tier
                      LES                  First Tier
                      NPPD                 First Tier
                      NSP                  First Tier
                      OPPD                 First Tier
                      AMEREN               First Tier (Post Merger)
                      AEP                  AMEREN Open Access Tariff
                      CILCO                AMEREN Open Access Tariff
                      CINergy              AMEREN Open Access Tariff
                      CE                   AMEREN Open Access Tariff
                      IES                  AMEREN Open Access Tariff
                      IP                   AMEREN Open Access Tariff
                      MoPub                AMEREN Open Access Tariff
                      NIPSCO               AMEREN Open Access Tariff
                      SIPCO                AMEREN Open Access Tariff
                      Soyland              AMEREN Open Access Tariff
                      WVPA                 AMEREN Open Access Tariff
                      Columbia             AMEREN Open Access Tariff
                      IMEA                 AMEREN Open Access Tariff
                      IMPA                 AMEREN Open Access Tariff
                      Springfield, IL      AMEREN Open Access Tariff
                      SPA                  AMEREN Open Access Tariff
<PAGE>
 
                                                                Exhibit_(RWF-10)
                                                                   Page 22 of 27


                   FIRST TIER MARKET CENTERED ON
                              Soyland

              Participants            Relationship
           ===================  =========================

           Soyland              Center
           CIPS                 First Tier (Pre Merger)
           AMEREN               First Tier (Post Merger)
           AEP                  AMEREN Open Access Tariff
           CILCO                AMEREN Open Access Tariff
           CINergy              AMEREN Open Access Tariff
           CE                   AMEREN Open Access Tariff
           IES                  AMEREN Open Access Tariff
           IP                   AMEREN Open Access Tariff
           KCPL                 AMEREN Open Access Tariff
           MEC                  AMEREN Open Access Tariff
           MoPub                AMEREN Open Access Tariff
           NIPSCO               AMEREN Open Access Tariff
           SJLP                 AMEREN Open Access Tariff
           AEC                  AMEREN Open Access Tariff
           SIPCO                AMEREN Open Access Tariff
           WVPA                 AMEREN Open Access Tariff
           Columbia             AMEREN Open Access Tariff
           IMEA                 AMEREN Open Access Tariff
           IMPA                 AMEREN Open Access Tariff
           Springfield, IL      AMEREN Open Access Tariff
           SPA                  AMEREN Open Access Tariff
<PAGE>
 
                                                                Exhibit_(RWF-10)
                                                                   Page 23 of 27



                   FIRST TIER MARKET CENTERED ON
                                SPA


               Participants           Relationship
           ==================== =========================

           SPA                  Center
           UE                   First Tier (Pre Merger)
           CSW                  First Tier
           OGE                  First Tier
           Empire               First Tier
           AEC                  First Tier
           WF                   First Tier
           AMEREN               First Tier (Post Merger)
           AEP                  AMEREN Open Access Tariff
           CILCO                AMEREN Open Access Tariff
           CINergy              AMEREN Open Access Tariff
           CE                   AMEREN Open Access Tariff
           IES                  AMEREN Open Access Tariff
           IP                   AMEREN Open Access Tariff
           KCPL                 AMEREN Open Access Tariff
           MEC                  AMEREN Open Access Tariff
           MoPub                AMEREN Open Access Tariff
           NIPSCO               AMEREN Open Access Tariff
           SJLP                 AMEREN Open Access Tariff
           SIPCO                AMEREN Open Access Tariff
           Soyland              AMEREN Open Access Tariff
           WVPA                 AMEREN Open Access Tariff
           Columbia             AMEREN Open Access Tariff
           IMEA                 AMEREN Open Access Tariff
           IMPA                 AMEREN Open Access Tariff
           Springfield, IL      AMEREN Open Access Tariff
<PAGE>
 
                                                             Exhibit ___(RWF-10)
                                                                   Page 24 of 27


                         FIRST TIER MARKET CENTERED ON
                                Springfield, IL



               Participants         Relationship
           ==================== ====================

           Springfield, IL      Center
           CIPS                 First Tier (Pre Merger)
           CILCO                First Tier
           IP                   First Tier
           AMEREN               First Tier (Post Merger)
           AEP                  AMEREN Open Access Tariff
           CINergy              AMEREN Open Access Tariff
           CE                   AMEREN Open Access Tariff
           IES                  AMEREN Open Access Tariff
           KCPL                 AMEREN Open Access Tariff
           MEC                  AMEREN Open Access Tariff
           MoPub                AMEREN Open Access Tariff
           NIPSCO               AMEREN Open Access Tariff
           SJLP                 AMEREN Open Access Tariff
           AEC                  AMEREN Open Access Tariff
           SIPCO                AMEREN Open Access Tariff
           Soyland              AMEREN Open Access Tariff
           WVPA                 AMEREN Open Access Tariff
           Columbia             AMEREN Open Access Tariff
           IMEA                 AMEREN Open Access Tariff
           IMPA                 AMEREN Open Access Tariff
           SPA                  AMEREN Open Access Tariff
<PAGE>
 
                                                              Exhibit___(RWF-10)
                                                                   Page 25 of 27



                        FIRST TIER MARKET CENTERED ON 
                                      TVA


<TABLE>
<CAPTION>



            Participants              Relationship
           ===============      =========================
           <S>                  <C>

           TVA                  Center
           CIPS                 First Tier (Pre Merger)
           UE                   First Tier (Pre Merger)
           AEP                  First Tier
           CPL                  First Tier
           Duke                 First Tier
           Entergy              First Tier
           IP                   First Tier
           LGE                  First Tier
           KU                   First Tier
           Southern             First Tier
           Big Rivers           First Tier
           EKPC                 First Tier
           AMEREN               First Tier (Post Merger)
           CE                   AMEREN Open Access Tariff
           CILCO                AMEREN Open Access Tariff
           CINergy              AMEREN Open Access Tariff
           IES                  AMEREN Open Access Tariff
           KCPL                 AMEREN Open Access Tariff
           MEC                  AMEREN Open Access Tariff
           MoPub                AMEREN Open Access Tariff
           NIPSCO               AMEREN Open Access Tariff
           SJLP                 AMEREN Open Access Tariff
           AEC                  AMEREN Open Access Tariff
           SIPCO                AMEREN Open Access Tariff
           Soyland              AMEREN Open Access Tariff
           WVPA                 AMEREN Open Access Tariff
           Columbia             AMEREN Open Access Tariff
           IMEA                 AMEREN Open Access Tariff
           IMPA                 AMEREN Open Access Tariff
           Springfield, IL      AMEREN Open Access Tariff
           SPA                  AMEREN Open Access Tariff
</TABLE> 

<PAGE>
 
                                                               Exhibit__(RWF-10)
                                                                   Page 26 of 27




                         FIRST TIER MARKET CENTERED ON
                                      WR

<TABLE>
<CAPTION>


                       Participants           Relationship
                   ===================  ========================
                   <S>                  <C> 
                   WR                   Center
                   UE                   First Tier (Pre Merger)
                   CSW                  First Tier
                   Empire               First Tier
                   KCPL                 First Tier
                   Midwest              First Tier
                   MoPub                First Tier
                   OGE                  First Tier
                   WestPlains           First Tier
                   AEC                  First Tier
                   BPU                  First Tier
                   OPPD                 First Tier
                   AMEREN               First Tier (Post Merger)
</TABLE> 
<PAGE>
 
                                                              Exhibit __(RWF-10)
                                                                   Page 27 of 27



                         FIRST TIER MARKET CENTERED ON
                                     WVPA


                       Participants         Relationship
                   ===================  ===================

                   WVPA                 Center
                   CIPS                 First Tier (Pre Merger)
                   CINergy              First Tier
                   IMPA                 First Tier
                   IPL                  First Tier
                   KU                   First Tier
                   LGE                  First Tier
                   NIPSCO               First Tier
                   SIGECO               First Tier
                   Hoosier              First Tier
                   AMEREN               First Tier (Post Merger)
                   AEP                  AMEREN Open Access Tariff
                   CILCO                AMEREN Open Access Tariff
                   CE                   AMEREN Open Access Tariff
                   IES                  AMEREN Open Access Tariff
                   IP                   AMEREN Open Access Tariff
                   KCPL                 AMEREN Open Access Tariff
                   MEC                  AMEREN Open Access Tariff
                   SJLP                 AMEREN Open Access Tariff
                   AEC                  AMEREN Open Access Tariff
                   SIPCO                AMEREN Open Access Tariff
                   Soyland              AMEREN Open Access Tariff
                   Columbia             AMEREN Open Access Tariff
                   IMEA                 AMEREN Open Access Tariff
                   Springfield, IL      AMEREN Open Access Tariff
                   SPA                  AMEREN Open Access Tariff
<PAGE>
 
                                                                Exhibit_(RWF-11)

                    AMEREN'S SHARE OF UNCOMMITTED CAPACITY
                              FIRST TIER MARKETS
                              18% RESERVE MARGIN
                                     1996


<TABLE> 
<CAPTION> 
                                                  Pre Merger                             Post Merger
                                     -------------------------------------    -----------------------------------------
                                                                                                      AMEREN Share
                                                                                                       With Open
   First Tier Market Centered On         UE Share           CIPS Share             AMEREN Share       Access Tariff
================================     =================   =================    ==================     ==================
<S>                                  <C>                 <C>                  <C>                    <C> 
                                           (%)                 (%)                     (%)                 (%)

                                           (1)                 (2)                     (3)                 (4)

AEC                                                0.0%                0.0%                  5.7%                   4.6%
- ------------------------------------------------------------------------------------------------------------------------------------
AEP                                                0.0                 3.7                   3.7                    2.8
- ------------------------------------------------------------------------------------------------------------------------------------
CE                                                 0.0                11.4                  11.4                    6.6
- ------------------------------------------------------------------------------------------------------------------------------------
CILCO                                              0.0                23.2                  23.2                    7.4
- ------------------------------------------------------------------------------------------------------------------------------------
CINergy                                            0.0                14.0                  14.0                    5.3
- ------------------------------------------------------------------------------------------------------------------------------------
Columbia                                           0.0                 0.0                  22.2                    7.4
- ------------------------------------------------------------------------------------------------------------------------------------
CSW                                                0.0                 0.0                   4.9                    4.9
- ------------------------------------------------------------------------------------------------------------------------------------
Entergy                                            0.0                 0.0                   6.1                    6.1
- ------------------------------------------------------------------------------------------------------------------------------------
IES                                                0.0                 0.0                   8.7                    5.5
- ------------------------------------------------------------------------------------------------------------------------------------
IMEA                                               0.0               100.0                 100.0                    7.4
- ------------------------------------------------------------------------------------------------------------------------------------
IMPA                                               0.0                18.2                  18.2                    5.8
- ------------------------------------------------------------------------------------------------------------------------------------
IP                                                 0.0                 7.3                   7.3                    4.9
- ------------------------------------------------------------------------------------------------------------------------------------
IPW                                                0.0                 0.0                   9.1                    9.1
- ------------------------------------------------------------------------------------------------------------------------------------
KCPL                                               0.0                 0.0                   5.0                    4.1
- ------------------------------------------------------------------------------------------------------------------------------------
KU                                                 0.0                 8.2                   8.2                    8.2
- ------------------------------------------------------------------------------------------------------------------------------------
MEC                                                0.0                 0.0                   4.6                    4.4
- ------------------------------------------------------------------------------------------------------------------------------------
MoPub                                              0.0                 0.0                  11.4                    6.4
- ------------------------------------------------------------------------------------------------------------------------------------
NIPSCO                                             0.0                34.7                  34.7                    7.4
- ------------------------------------------------------------------------------------------------------------------------------------
NSP                                                0.0                 0.0                   3.6                    3.6
- ------------------------------------------------------------------------------------------------------------------------------------
SIPCO                                              0.0                27.5                  27.5                    7.4
- ------------------------------------------------------------------------------------------------------------------------------------
SJLP                                               0.0                 0.0                   5.9                    4.5
- ------------------------------------------------------------------------------------------------------------------------------------
Soyland                                            0.0               100.0                 100.0                    7.4
- ------------------------------------------------------------------------------------------------------------------------------------
SPA                                                0.0                 0.0                   6.9                    4.3
- ------------------------------------------------------------------------------------------------------------------------------------
Springfield, IL                                    0.0                32.2                  32.2                    7.4
- ------------------------------------------------------------------------------------------------------------------------------------
TVA                                                0.0                 7.7                   7.7                    4.3
- ------------------------------------------------------------------------------------------------------------------------------------
WR                                                 0.0                 0.0                   5.5                    5.5
- ------------------------------------------------------------------------------------------------------------------------------------
WVPA                                               0.0                18.2                  18.2                    6.0
- ------------------------------------------------------------------------------------------------------------------------------------
</TABLE>
<PAGE>
 
<TABLE>
                                                                                                                   Exhibit__(RWF-12)
                

                                              AMEREN'S SHARE OF UNCOMMITTED CAPACITY
                                                        FIRST TIER MARKETS
                                                        15% RESERVE MARGIN
                                                               1996




                                                       Pre Merger                                   Post Merger
                                         --------------------------------------     -------------------------------------------
                                                                                                                 AMEREN Share
                                                                                                                   With Open
   First Tier Market Centered On           UE Share                CIPS Share         AMEREN Share               Access Tariff
====================================     ============            ==============     ================           ================
                                             (%)                       (%)                (%)                         (%)

                                             (1)                       (2)                (3)                         (4)

<S>                                      <C>                     <C>                 <C>                        <C> 
AEC                                               3.5%                      0.0%                 8.6%                        5.7%
- ------------------------------------------------------------------------------------------------------------------------------------
AEP                                               0.0                       2.8                  4.5                         3.8
- ------------------------------------------------------------------------------------------------------------------------------------
CE                                                0.0                       7.8                 12.2                         8.2
- ------------------------------------------------------------------------------------------------------------------------------------
CILCO                                             0.0                      14.0                 21.1                         9.2
- ------------------------------------------------------------------------------------------------------------------------------------
CINergy                                           0.0                      10.7                 16.4                         7.1
- ------------------------------------------------------------------------------------------------------------------------------------
Columbia                                         19.7                       0.0                 38.6                         9.2
- ------------------------------------------------------------------------------------------------------------------------------------
CSW                                               3.2                       0.0                  7.9                         7.9
- ------------------------------------------------------------------------------------------------------------------------------------
Entergy                                           2.7                       0.0                  6.6                         6.6
- ------------------------------------------------------------------------------------------------------------------------------------
IES                                               6.8                       0.0                 15.7                         7.4
- ------------------------------------------------------------------------------------------------------------------------------------
IMEA                                              0.0                     100.0                100.0                         9.2
- ------------------------------------------------------------------------------------------------------------------------------------
IMPA                                              0.0                      14.1                 21.2                         7.6
- ------------------------------------------------------------------------------------------------------------------------------------
IP                                                3.3                       5.1                  8.4                         6.2
- ------------------------------------------------------------------------------------------------------------------------------------
IPW                                               5.0                       0.0                 11.8                        11.8
- ------------------------------------------------------------------------------------------------------------------------------------
KCPL                                              3.8                       0.0                  9.3                         6.0
- ------------------------------------------------------------------------------------------------------------------------------------
KU                                                3.8                       6.0                  9.8                         9.8
- ------------------------------------------------------------------------------------------------------------------------------------
MEC                                               3.1                       0.0                  7.6                         6.6
- ------------------------------------------------------------------------------------------------------------------------------------
MoPub                                             8.6                       0.0                 19.5                         8.2
- ------------------------------------------------------------------------------------------------------------------------------------
NIPSCO                                            0.0                      10.9                 16.7                         8.7
- ------------------------------------------------------------------------------------------------------------------------------------
NSP                                               3.0                       0.0                  7.4                         7.4
- ------------------------------------------------------------------------------------------------------------------------------------
SIPCO                                             0.0                      30.6                 42.0                         9.2
- ------------------------------------------------------------------------------------------------------------------------------------
SJLP                                              4.7                       0.0                 11.1                         6.6
- ------------------------------------------------------------------------------------------------------------------------------------
Soyland                                           0.0                     100.0                100.0                         9.2
- ------------------------------------------------------------------------------------------------------------------------------------
SPA                                               5.6                       0.0                 13.1                         6.3
- ------------------------------------------------------------------------------------------------------------------------------------
Springfield, IL                                   0.0                      33.1                 44.8                         9.2
- ------------------------------------------------------------------------------------------------------------------------------------
TVA                                               2.7                       4.2                  6.9                         4.4
- ------------------------------------------------------------------------------------------------------------------------------------
WR                                                4.1                       0.0                 10.0                        10.0
- ------------------------------------------------------------------------------------------------------------------------------------
WVPA                                              0.0                      14.1                 21.2                         7.8
- ------------------------------------------------------------------------------------------------------------------------------------

</TABLE>
<PAGE>
 
                                                         EXHIBIT NO. __ (RWF-13)
                   
                   DEFINING FIRST TIER MARKETS SYMMETRICALLY

                             [GRAPH APPEARS HERE]


     This exhibit consists of a schematic diagram that will be provided to the
Commission upon request.
<PAGE>
 
                                                               Exhibit_(RWF-14)


                       AMEREN'S SHARE OF TOTAL CAPACITY
                              FIRST TIER MARKETS

<TABLE>
<CAPTION>


  
                                             Pre Merger                         Post Merger
                                    ---------------------------     ---------------------------------- 
                                                                                        AMEREN Share
                                                                                          With Open
 First Tier Market Centered On       UE Share       CIPS Share       AMEREN Share       Access Tariff
===============================     ==========     ============     ==============     ===============
                                       (%)              (%)              (%)                 (%)

                                       (1)              (2)              (3)                 (4)

<S>                                  <C>            <C>              <C>                 <C> 
AEC                                       12.8%             0.0%              16.3%                8.2%
- ----------------------------------------------------------------------------------------------------------
AEP                                        0.0              1.5                5.7                 5.1
- ----------------------------------------------------------------------------------------------------------
CE                                         0.0              4.0               14.3                10.7
- ----------------------------------------------------------------------------------------------------------
CILCO                                      0.0              8.8               28.1                11.7
- ----------------------------------------------------------------------------------------------------------
CINergy                                    0.0              4.6               16.2                 9.7
- ----------------------------------------------------------------------------------------------------------
Columbia                                  68.9              0.0               74.7                11.7
- ----------------------------------------------------------------------------------------------------------
CSW                                       12.9              0.0               16.4                16.4
- ----------------------------------------------------------------------------------------------------------
Entergy                                    7.3              0.0                9.5                 9.5
- ----------------------------------------------------------------------------------------------------------
IES                                       27.2              0.0               33.2                10.4
- ----------------------------------------------------------------------------------------------------------
IMEA                                       0.0             88.2               96.8                11.7
- ----------------------------------------------------------------------------------------------------------
IMPA                                       0.0              8.9               28.4                10.4
- ----------------------------------------------------------------------------------------------------------
IP                                         8.5              2.8               11.3                 8.8
- ----------------------------------------------------------------------------------------------------------
IPW                                       15.4              0.0               19.5                19.5
- ----------------------------------------------------------------------------------------------------------
KCPL                                      19.5              0.0               24.3                 9.6
- ----------------------------------------------------------------------------------------------------------
KU                                         9.3              3.1               12.4                12.4
- ----------------------------------------------------------------------------------------------------------
MEC                                       12.5              0.0               16.0                10.2
- ----------------------------------------------------------------------------------------------------------
MoPub                                     35.1              0.0               41.8                10.9
- ----------------------------------------------------------------------------------------------------------
NIPSCO                                     0.0              4.0               14.3                10.8
- ----------------------------------------------------------------------------------------------------------
NSP                                       15.4              0.0               19.5                19.5
- ----------------------------------------------------------------------------------------------------------
SIPCO                                      0.0             36.2               69.6                11.7
- ----------------------------------------------------------------------------------------------------------
SJLP                                      24.0              0.0               29.5                10.2
- ----------------------------------------------------------------------------------------------------------
Soyland                                    0.0             90.2               97.4                11.7
- ----------------------------------------------------------------------------------------------------------
SPA                                       28.5              0.0               34.6                10.0
- ----------------------------------------------------------------------------------------------------------
Springfield, IL                            0.0             30.4               63.8                11.7
- ----------------------------------------------------------------------------------------------------------
TVA                                        5.0              1.6                6.6                 5.0
- ---------------------------------------------------------------------------------------------------------- 
WR                                        20.4              0.0               25.4                25.4
- ----------------------------------------------------------------------------------------------------------
WVPA                                       0.0              8.9               28.4                10.5
- ----------------------------------------------------------------------------------------------------------
</TABLE>

<PAGE>
 
                                                               Exhibit__(RWF-15)
<TABLE>
<CAPTION>
       
                  TOTAL CAPACITY IN ONE WHEEL MARKET                   
                           CENTERED ON WR          

                                                         Total
                                                       Capacity
                Trading Partner                          1996
         ============================                  ========
         <S>                                           <C>
                     (1)                                  (2)

     I   Center Utility
         --------------
              WR                                         5,159 MW

     II  Directly Interconnected Merger Partner(s)
         -----------------------------------------
             UE                                          8,385 MW

     III Other Interconnections
         ----------------------
              CSW                                        8,420 MW
              Empire                                       997
              KCPL                                       3,720
              Midwest                                      272
              MoPub                                      1,263
              OGE                                        6,237
              WestPlains                                   514
              ------------------------------------------------
              AEC                                        3,557
              ------------------------------------------------
              BPU                                          619
              ------------------------------------------------
              OPPD                                       1,968
                                                        ------
              Total (I + II + III)                      41,111 MW

     IV  Other Merger Partner
         --------------------
              CIPS                                       2,766 MW

     V   Additional Utilities Accessible Under Open
         ------------------------------------------
             Access Tariff of CSW & KCPL
             ---------------------------
             Entergy                                    21,209 MW
             IPW                                         1,310
             MEC                                         4,347
             NSP                                         8,311
             SJLP                                          422
             SWPS                                        3,939
             -------------------------------------------------
             AECC                                        1,946
             WF                                          1,226
             -------------------------------------------------
             GRDA                                          789
             Independence                                  348
             LES                                           604
             Springfield, MO                               753
             -------------------------------------------------
             NPPD                                        2,033
             SPA                                           643

             Total (I + II + III + IV + V)              91,757 MW
         -----------------------------------------------------
         UE Premerger Share                       (a) :   20.4%
         CIPS Premerger Share                     (b) :    0.0%
         Merged Entity Share
             Before CSW & KCPL Tariff            (c) :    25.4%
             After CSW & KCPL Tariff             (d) :    12.2%

         (a) :[8,385/41,111]*100
         (b) :[0/41,111]*100
         (c) :[(8,385+2,776)/43,887]*100
         (d) :[(8,385+2,776)/91,767]*100
         -----------------------------------------------------
</TABLE>
<PAGE>
 
                                                               Exhibit__(RWF-16)


                           NON FIRM ENERGY SALES BY
                     UE, CIPS AND INTERCONNECTED UTILITIES
                               ALL TRANSACTIONS

                                     1993
<TABLE> 
<CAPTION> 

                
                <S>                  <C>               <C>             <C>
                ------------------------------------------------------------ 
                     SELLER          Sales             Share           HHI
                ------------------------------------------------------------
                      (1)             (2)              (3)             (4)
                ------------------------------------------------------------
                CE                   10,605 GWH        14.5%           210
                ------------------------------------------------------------
                AEP                  10,052            13.7            188
                ------------------------------------------------------------
                TVA                   6,818             9.3             87
                ------------------------------------------------------------
                NSP                   6,338             8.7             75
                ------------------------------------------------------------  
                UE                    6,230             8.5             72
                ------------------------------------------------------------
                IP                    4,762             6.5             42
                ------------------------------------------------------------
                CINergy               4,730             6.5             42
                ------------------------------------------------------------
                CIPS                  4,505             6.2             38
                ------------------------------------------------------------
                Entergy               3,479             4.8             23
                ------------------------------------------------------------
                KCPL                  3,343             4.6             21
                ------------------------------------------------------------
                MEC                   3,333             4.6             21
                ------------------------------------------------------------
                WR                    2,398             3.3             11
                ------------------------------------------------------------
                AEC                   2,028             2.8              8
                ------------------------------------------------------------
                IES                   1,885             2.6              7
                ------------------------------------------------------------
                KU                      773             1.1              1
                ------------------------------------------------------------
                NIPSCO                  689             0.9              1
                ------------------------------------------------------------
                CSW                     581             0.8              1
                ------------------------------------------------------------
                CILCO                   203             0.3              0
                ------------------------------------------------------------
                IPW                     117             0.2              0
                ------------------------------------------------------------
                SIPCO                   114             0.2              0
                ------------------------------------------------------------
                MoPub                   107             0.1              0
                ------------------------------------------------------------
                SJLP                     92             0.1              0
                ------------------------------------------------------------
                IMEA                     33             0.0              0
                ------------------------------------------------------------
                Springfield, IL          12             0.0              0
                ------------------------------------------------------------
                WVPA                      2             0.0              0
                ------------------------------------------------------------
                IMPA                      0             0.0              0
                ------------------------------------------------------------
                Pre Merger Total     73,228 GWH         100%           846
                ------------------------------------------------------------
                ------------------------------------------------------------
                Increase in HHI  [2 * UE Share * CIPS Share]           105
                ------------------------------------------------------------ 
                ------------------------------------------------------------
                Post Merger Total                                      951
                ------------------------------------------------------------
</TABLE> 
                
                Source: Workpapers
                

<PAGE>
 
                                                                EXHIBIT (RWF-17)
                                                       
                           NON FIRM ENERGY SALES BY
                     UE, CIPS AND INTERCONNECTED UTILITIES
                               ALL TRANSACTIONS

                                     1994
<TABLE> 
<CAPTION> 
                ----------------------------------------------------
                     SELLER               Sales         Share    HHI
                
                       (1)                 (2)           (3)     (4)
                <S>                       <C>           <C>      <C>
                ----------------------------------------------------
                AEP                       7,688 GWH     11.8%    139
                ----------------------------------------------------
                CE                        6,976         10.7     114
                ----------------------------------------------------
                UE                        6,443          9.9      97
                ----------------------------------------------------
                TVA                       6,314          9.7      94
                ----------------------------------------------------
                CINergy                   4,878          7.5      56
                ----------------------------------------------------
                NSP                       4,841          7.4      55
                ----------------------------------------------------
                KCPL                      4,207          6.4      42
                ----------------------------------------------------
                IP                        3,797          5.8      34
                ----------------------------------------------------  
                CIPS                      3,767          5.8      33
                ----------------------------------------------------
                AEC                       3,405          5.2      27  
                ----------------------------------------------------
                Entergy                   3,404          5.2      27
                ----------------------------------------------------
                KU                        2,214          3.4      11
                ---------------------------------------------------- 
                MEC                       1,895          2.9       8
                ----------------------------------------------------
                WR                        1,698          2.6       7
                ----------------------------------------------------
                IES                       1,137          1.7       3
                ----------------------------------------------------
                CSW                       1,001          1.5       2 
                ----------------------------------------------------
                CILCO                       359          0.5       0
                ----------------------------------------------------
                IPW                         277          0.4       0
                ---------------------------------------------------- 
                NIPSCO                      253          0.4       0
                ----------------------------------------------------
                SIPCO                       249          0.4       0
                ----------------------------------------------------
                SJLP                        222          0.3       0 
                ----------------------------------------------------
                MoPub                       158          0.2       0
                ----------------------------------------------------
                Springfield, IL              52          0.1       0
                ----------------------------------------------------
                IMEA                         44          0.1       0
                ---------------------------------------------------- 
                WVPA                         12          0.0       0
                ----------------------------------------------------
                Pre Merger Total         65,290 GWH      100%    751
                ----------------------------------------------------
                ----------------------------------------------------
                Increase in HHI  [2* UE Share* CIPS Share]       114
                ----------------------------------------------------
                ---------------------------------------------------- 
                Post Merger Total                                864
                ----------------------------------------------------
                Source: Workpapers
</TABLE> 

<PAGE>
 
                                                                   Exhibit D-2.1
 
                     BEFORE THE PUBLIC SERVICE COMMISSION

                                 STATE OF MISSOURI


In the matter of the Application of Union Electric    )
Company for an order authorizing:  (1) certain        )
merger transactions involving Union Electric          )
Company; (2) the transfer of certain Assets, Real     )   Case No. EM-96-149
Estate, Leased Property, Easements and Contractual    )
Agreements to Central Illinois Public Service         )
Company; and (3) in connection therewith, certain     )
other related transactions.                           )


                                 APPLICATION
                                 -----------

     COMES NOW Union Electric Company ("UE"), a Missouri corporation, and for
its Application to the Missouri Public Service Commission ("Commission"),
pursuant to Chapter 393, RSMo. 1994, and 4 CSR 240-2.060(3) & (4), for an order
authorizing:  (1) certain merger transactions involving Union Electric Company;
(2) the transfer of certain Assets, Real Estate, Leased Property, Easements and
Contractual Agreements; and (3) in connection therewith, certain other related
transactions, respectfully states as follows:


     1.    UE is a Missouri corporation, in good standing in all respects, with
its principal office and place of business located at 1901 Chouteau Avenue, St.
Louis, Missouri 63103.  UE is engaged in providing electric, gas and steam
heating services in portions of Missouri as a public utility under the
jurisdiction of the Commission.  UE is also engaged in providing electric and
gas service in portions of Illinois.  There is already on file with the
Commission a certified copy of UE's Articles of Incorporation and Certificate of
Corporate Good Standing (see MPSC Case No. EA-87-105) and said documents are
incorporated herein by reference and made a part hereof for all purposes.
<PAGE>
 
     2.    CIPSCO Incorporated ("CIPSCO") is an Illinois corporation and the
parent corporation to its wholly-owned subsidiary Central Illinois Public
Service Company ("CIPS").  CIPS is an electric and gas utility in the State of
Illinois and is an Illinois corporation.  In addition, CIPSCO is the parent
corporation to its wholly-owned subsidiary CIPSCO Investment Company ("CIPSCO
Investment").  CIPSCO Investment is an Illinois corporation and manages
approximately $100 million in non-utility investments.

     3.    Arch Merger, Inc. ("Arch Merger") is a newly formed Missouri
Corporation  and a wholly-owned subsidiary of Ameren Corporation ("Ameren").
Ameren is also a newly formed Missouri corporation which is owned 50 percent by
UE and 50 percent by CIPSCO.  Arch Merger and Ameren were formed for the purpose
of facilitating the merger.

     4.    Pleadings, notices, orders and other correspondence concerning this
Application and proceeding should be addressed to:

                     Steven R. Sullivan
                     Attorney
                     Union Electric Company
                     P.O. Box 149 (MC 1310)
                     1901 Chouteau Ave.
                     St. Louis, MO 63166

     5.    Pursuant to the terms and conditions of the "Agreement and Plan of
Merger" between UE and CIPSCO dated August 11, 1995 (the "Agreement"), a copy of
which is attached to the testimony of Mr. Gary L. Rainwater and is being filed
simultaneously herewith, Arch Merger will be merged with and into UE, and CIPSCO
will be merged with and into Ameren.  The final resulting corporate structure
will be that UE, CIPS and CIPSCO Investment will become wholly-owned
subsidiaries of Ameren (collectively, the 

                                       2
<PAGE>
 
 "Merger Transactions"). The Merger Transactions are intended to result in a 
tax-free exchange and will be accounted for as a "pooling of interests".

     6.    As a result of the Merger Transactions, each outstanding share of UE
Common Stock will be converted into the right to receive one share of Ameren
Common Stock, and each outstanding share of CIPSCO Common Stock will be
converted into the right to receive 1.03 shares of Ameren Common Stock. After
the Mergers, Ameren will become a registered public utility holding company
under the Public Utility Holding Company Act of 1935.

     7.    Subject to the terms and conditions of the Agreement, UE will
transfer to CIPS certain Assets, Real Estate, Leased Property, Easements and
Contractual Agreements (collectively herein described as "Assets") which Assets
generally constitute UE's retail electric and gas systems located in the State
of Illinois which are necessary or useful in the performance of UE's duties to
the Illinois public within its Illinois service territory with respect to the
provision of retail electric and gas service (the "Transfer Transaction"). A
list of the Assets being transferred is attached hereto as Schedule A and is
incorporated herein by reference. The transfer does not include any of UE's
electric transmission or generating assets located in the State of Illinois and
does not include any assets located in the State of Missouri.

     8.    The transfer of the Assets by UE to CIPS will be at depreciated cost
or "book value" so that no gain or loss will result from the transaction. As
consideration for the Transfer Transaction, UE and CIPS will enter into a System
Support Agreement for the sale
                                       3
<PAGE>
 
of approximately 600 mW (a portion being firm and non-firm) and related energy
and an amendment to the Interconnection Agreement between UE, Illinois Power and
CIPS. The System Support Agreement and amendment to the Interconnection
Agreement will be submitted to the Federal Energy Regulatory Commission ("FERC")
for approval. The System Support Agreement will provide for sales of electricity
substantially equivalent to the customer load for the Illinois customers of UE
being transferred to CIPS and will be for a minimum term of 30 years.
Accordingly, no detriment to Missouri ratepayers will result from the Transfer
Transaction.

     9.    The Transfer and Merger Transactions will not result in any immediate
change in UE's Missouri electric or gas rates.

     10.   The Transfer Transaction and Merger Transactions are not detrimental
to the public interest because: (1) UE anticipates that the combined savings
achieved in the first ten years following consummation of these transactions
will amount to $590 million, a substantial portion of which will be realized in
Missouri; (2) the transfer of the Assets will not result in any increased costs
to UE's Missouri customers, since UE's power pool costs now allocated to
Illinois customers will remain with Illinois customers through a wholesale power
sale to CIPS; and (3) the transfer of the Assets will not result in any reduced
level of service or reliability for those retail customers presently being
served by UE in Missouri subject to the jurisdiction of the Commission.

     11.   The $590 million in savings will be achieved primarily through: (1)
eliminating duplication in corporate and administrative services; (2) joint
dispatch (i.e., dispatching UE
                                       4
<PAGE>
 
and CIPS electric generation as though it were a single system); and (3)
decreased gas reserve margins and lower pipeline demand charges.

     12.   The costs necessary to complete the above-referenced transactions and
to create the anticipated $590 million in savings over the first ten years
following completion of the merger amount to approximately $273 million. The
vast majority of these costs have occurred or will occur within the first two
years following completion of the merger. UE requests that a ratable portion of
these costs be offset against merger savings attributable to the Company's
Missouri electric and gas operations and that the remaining merger savings be
shared equally with ratepayers during the first 10 years following the merger.
UE and CIPS will seek comparable cost of service treatment in Illinois and at
the FERC. UE requests no specialized treatment for the merger-related savings
that will occur following this initial ten-year period.

     13.   As a result of the Transfer Transaction and related System Support
Agreement between UE and CIPS, UE will seek FERC approval to transfer the future
nuclear decommissioning trust funding obligations which are currently the
responsibility of the UE's Illinois electric customers to its FERC-regulated
wholesale customers. UE and CIPS will also enter into a Joint Dispatch agreement
which will govern the joint dispatch of their generating systems and a General
Services agreement governing the performance of intercompany services. The Joint
Dispatch Agreement and System Support Agreement will both be filed with FERC.
The General Services Agreement will be filed with the SEC.

     14.   A certified copy of the resolutions of the Board of Directors of UE
authorizing 

                                       5
<PAGE>
 
the consummation of the transactions contemplated by this Application is
attached hereto as Schedule B and made a part hereof.

     15.   UE's balance sheet and income statement, with adjustments showing the
results of the transfer of the Illinois properties, is attached hereto as
Schedule C and made a part hereof for all purposes.

     16.   None of the assets to be transferred are located within the State of
Missouri. Therefore, the proposed transaction will have no impact on the tax
revenues of the political subdivisions in Missouri in which any of UE's
structures, facilities or equipment are located.

     17.   Regulatory approvals of the proposed merger, transfer and assignment
of the Assets and various other matters will be sought from the FERC, the
Illinois Commerce Commission, the Nuclear Regulatory Commission, and the
Securities Exchange Commission. The merger is subject to the review of the
Federal Trade Commission and Department of Justice.

     18.   Closing of the sale will take place as promptly as possible after all
regulatory approvals are obtained; provided, however, that the parties have
proposed December 31, 1996, as the closing date. If all regulatory approvals
have been received, the parties would close sooner than December 31, 1996.
Although the projected closing is more than one year away, UE and CIPS desire to
close on the Transfer Transaction and Merger Transactions as promptly as
possible and, therefore, UE respectfully requests that this Application be
expedited to the extent possible under the Commission's schedule. In order to
facilitate a 1996 closing, and in light of the fact that some federal agencies
will not act on an
                                       6
<PAGE>
 
application until all state approvals have been received, UE respectfully
requests an Order of this Commission no later than May 1, 1996.

     WHEREFORE, UE respectfully requests that the Commission issue its order:

     (a)  Authorizing UE to perform in accordance with the terms and conditions

of the Agreement;

     (b)  Authorizing the Merger Transactions;

     (c)  Approving as reasonable and prudent the consideration received by UE
from CIPS for the Assets;

     (d)  Authorizing UE to transfer the Assets (as listed on Schedule A hereto)
to CIPS, which Assets generally constitute UE's Illinois-based franchise, works
or system as are necessary or useful in the performance of UE's duties to the
public within the Illinois service territory with respect to the provision of
retail electric and gas service in Illinois, but excluding any of UE's
transmission or generating assets located in the State of Illinois;

     (e)  Authorizing UE to offset a ratable portion of the merger costs against
merger savings attributable to the Company's Missouri electric and gas
operations and to share equally with ratepayers the remaining merger savings
during the 10 years following the merger;

     (f)  Authorizing UE to enter into, execute and perform in accordance with
the terms of all other documents reasonably necessary and incidental to the
performance of the transactions which are the subject of the Agreement and this
Application; and

     (g)  Granting such other relief as deemed necessary to accomplish the
purposes
                                       7
<PAGE>
 
of the Agreement and this Application and to consummate the sale, transfer and
assignment of the Assets and related transactions.

     UE respectfully requests that this Application be processed as
expeditiously as possible. Both UE and CIPS are anxious to close as promptly as
possible and plan to do so as soon as all necessary regulatory approvals are
obtained.

                                    Respectfully submitted,

                                    UNION ELECTRIC COMPANY


                                    /s/ Steven R. Sullivan
                                    ------------------------------
                                    Steven R. Sullivan
                                    Joseph H. Raybuck
                                    James J. Cook
                                    Attorneys for
                                    Union Electric Company
                                    P.O. Box 149 (M/C 1310)
                                    St. Louis, MO 63166
                                    PH:  (314) 554-2514
                                    PH:  (314) 554-2976
                                    PH:  (314) 554-2237
                                    FAX: (314) 554-4014

                                       8
<PAGE>
 
                                 VERIFICATION
                                 ------------


STATE OF MISSOURI )
                  )  SS
CITY OF ST. LOUIS )

     Donald E. Brandt, first being duly sworn, states that he is the Senior Vice
President of Finance & Corporate Services of Union Electric Company and that he
has read the above and foregoing document and states that the allegations
contained therein are true and correct to the best of his information, knowledge
and belief.
                                     /s/ Donald E. Brandt
                                    -----------------------------
                                    Donald E. Brandt

     IN WITNESS WHEREOF, I have set my hand and affixed my official seal on this
2nd day of November, 1995.

                                       G.L. Waters
                                    ------------------------------
                                    Notary Public



  My Commission Expires:      3/16/99
                         -------------------

                                       9

<PAGE>
 
                                                                   EXHIBIT D-2.3

 
                     BEFORE THE PUBLIC SERVICE COMMISSION
                           OF THE STATE OF MISSOURI



In the matter of the application of   )
Union Electric Company for an order   )
authorizing (1) certain merger        )
transactions involving Union          )
Electric Company; (2) the transfer    )
of certain assets, real estate,       )     Case No. EM-96-149
leased property, easements and        )
contractual agreements to Central     )
Illinois Public Service Company;      )
and (3) in connection therewith,      )
certain other related transactions.   )
 
 
 
 


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

                           STIPULATION AND AGREEMENT

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







                                                            Dated: July 12, 1996
<PAGE>
 
                               TABLE OF CONTENTS


1.   Approval of the Merger .................................................. 1

2.   Merger Premium .......................................................... 2

3.   Merger Benefits and Savings ............................................. 2

4.   Transaction and Transition Costs ........................................ 2

5.   Retail Wheeling Experiment .............................................. 3

6.   Rate Reduction .......................................................... 5

7.   New Experimental Alternative Regulation Plan (New Plan) ................. 7

8.   State Jurisdictional Issues ............................................ 22

     a.    Access to Books, Records and Personnel............................ 22
     b.    Voluntary and Cooperative Discovery Practices .................... 23
     c.    Accounting Controls............................................... 23
     d.    Contracts Required to be Filed with the SEC....................... 24
     e.    Electric Contracts Required to be Filed with the
           FERC.............................................................. 25
     f.    Gas Contracts Required to be Filed with the FERC.................. 26
     g.    No Pre-Approval of Affiliated Transactions........................ 27
     h.    Contingent Jurisdictional Stipulation -- FERC..................... 27
     i.    Contingent Jurisdictional Stipulation -- SEC...................... 28

9.   Staff Conditions To Which UE Has Agreed................................. 29

10.  System Support Agreement................................................ 33
 
11.  Commission Rights....................................................... 34
 
12.  Staff Rights............................................................ 34
 
13.  No Acquiescence......................................................... 36
     
14.  Negotiated Settlement................................................... 36
     
15.  Provisions Are Interdependent........................................... 37

                                       i
<PAGE>
 
16.    Prepared Testimony.................................................... 37
 
17.    Waive Rights to Cross Examination, etc. .............................. 38
 
18.    Operative Dates....................................................... 39


Attachment A:  PROCEDURES TO DETERMINE RATE REDUCTION


Attachment B:  PROCEDURES FOR SHARING CREDITS FROM THE NEW THREE-YEAR
               EXPERIMENTAL ALTERNATIVE REGULATION PLAN


Attachment C:  RECONCILIATION PROCEDURE


Attachment D:  CONTINGENT JURISDICTIONAL STIPULATION -- SEC AND FERC




                                      ii
<PAGE>
 
                     BEFORE THE PUBLIC SERVICE COMMISSION
                           OF THE STATE OF MISSOURI


In the matter of the application of  )
Union Electric Company for an order  )
authorizing (1) certain merger       )
transactions involving Union         )
Electric Company; (2) the transfer   )
of certain assets, real estate,      )      Case No. EM-96-149
leased property, easements and       )
contractual agreements to Central    )
Illinois Public Service Company;     )
and (3) in connection therewith,     )
certain other related transactions.  )
 
 
 
                           STIPULATION AND AGREEMENT
                           -------------------------

     As a result of discussions among the parties to Case No. EM-96-149, the
signatories hereby submit to the Missouri Public Service Commission
("Commission") for its consideration and approval the following, including
actions to be taken by Union Electric Company ("UE") and the other signatories
in settlement of the above styled case:

1.   Approval of the Merger

     The signatories agree that the Commission should approve the merger as
requested in UE's filing dated November 7, 1995, on the basis that, subject to
the conditions and modifications set forth below, said merger is not detrimental
to the public interest.

                                       1
<PAGE>
 
2.   Merger Premium

     UE shall not seek to recover the amount of any asserted merger premium in
rates in any Missouri proceeding. UE has identified this amount as $232 million.

3.   Merger Benefits and Savings

     UE shall retain the right to state, in future proceedings, alleged benefits
of the merger but UE commits to forego any additional specific adjustments to
cost of service related to the merger savings or any claim to merger savings
other than the adjustments to cost of service and claims to merger savings
resulting from the Commission's approval of this document or the benefits and
savings which would occur through regular ratemaking treatment or the current
Experimental Alternative Regulation Plan ("ARP") or the new Experimental
Alternative Regulation Plan ("the New Plan") effective July 1, 1998 pursuant to
this document.

4.   Transaction and Transition Costs

     Actual prudent and reasonable merger transaction and transition costs
(estimated to be $71.5 million, which reflects the total Ameren Corporation
("Ameren") estimated merger costs presented to the Commission Staff ("Staff")
and Office of the Public Counsel ("OPC") in the UE/CIPSCO, Inc.  Merger
Implementation Plan, less executive severance pay of $1.6 million, 

                                       2
<PAGE>
 
but including costs incurred in 1995) shall be amortized over ten years
beginning the date the merger closes. The annual amortization of merger
transaction and transition costs will be the lesser of: (1) the Missouri
jurisdictional portion of the total Ameren amount of $7.2 million; or (2) the
Missouri jurisdictional portion of the total Ameren unamortized amount of actual
merger transaction and transition costs incurred to date. No rate base treatment
of the unamortized costs will be included in the determination of rate base for
any regulatory purposes in Missouri.

5.   Retail Wheeling Experiment

     As a result of settlement negotiations, UE commits that it will propose and
file with the Commission an experimental retail wheeling pilot program for 100
MW of electric power, to be available to all major classes of Missouri retail
electric customers, as soon as practical, but no later than March 1, 1997.  The
commitment to file such a pilot program for Commission consideration and
determination covered by this provision is made by UE alone.  Prior to filing
its proposal with the Commission, UE will seek substantive input from Missouri
retail electric customers, Staff, OPC and others (including, but not limited to,
Trigen - St. Louis Energy Corp. and Missouri Retailers Association).  If
permitted by the Commission's Order, UE shall 

                                       3
<PAGE>
 
implement the retail wheeling pilot program as approved by the Commission so as
to allow power purchase transactions to commence within sixty (60) days of the
effective date of the Commission's Order or as soon as practicable thereafter,
but in no event before the merger closes (except with the consent of UE and the
approval of the Commission).

     The commitment covered by this provision should not be construed as
concurrence or acquiescence by the signatories in the specifics of the retail
wheeling pilot program which will be filed by UE, the details of which are to be
determined by UE based in part on a consideration of the substantive input
referred to above. The non-objection of signatories to UE's commitment to file a
retail wheeling pilot program should not be construed as a waiver of the
signatories' right to contest the proposed retail wheeling pilot program before
the Commission; nor are the signatories precluded from seeking a writ of review,
appealing a Commission Order or pursuing any other appropriate legal remedy. The
signatories agree not to attempt to enjoin the Commission from considering and
issuing an Order respecting UE's proposal. UE commits not to appeal the
Commission's Order establishing a retail wheeling pilot program unless said
Order is significantly different from the UE filing and UE is materially and
adversely affected

                                       4
<PAGE>
 
thereby. Furthermore, Commission approval of the instant Stipulation And
Agreement containing this provision is not intended by the signatories to be
read as a Commission pronouncement of any sort respecting retail wheeling either
in general, as public policy, or in specific, as a regulatory mechanism.

     If such a retail wheeling pilot program is instituted, matters which affect
the calculation of where UE falls on the "Sharing Grid" of the ARP or the New
Plan may arise which will need to be resolved by agreement of the signatories to
this Stipulation And Agreement, or by the Commission if agreement cannot be
reached.

     A signatory to this Stipulation And Agreement shall be made a party in the
retail wheeling pilot program proceeding, as a matter of right, if it so
requests.

6.   Rate Reduction

     Earnings monitoring in Case No. EO-96-14 will result in a general change in
rates charged and revenues collected after August 31, 1998.  The change in
revenues collected will be equal to the average annual total revenues credited
to customers during the three ARP years ending June 30, 1998, adjusted to
reflect normal weather.  The procedures to determine the  adjustment to the
annual credits for the three years comprising the ARP are set forth in
Attachment A appended hereto.  Any rate reduction shall be spread 

                                       5
<PAGE>
 
within and among revenue classes on the basis of the Commission decision in Case
No. EO-96-15, which is the UE customer class cost of service and comprehensive
rate design docket created as a result of Case No. ER-95-411. In the event that
a Commission decision has not been reached in Case No. EO-96-15, the parties
will jointly or severally propose to the Commission a basis or bases on which a
rate reduction may be spread on an interim basis within and among the classes
pending issuance of the Commission's decision in Case No. EO-96-15.

     UE will make a good faith effort to provide the earnings report for the
final sharing period in Case No. ER-95-411 in time to implement this rate
reduction on September 1, 1998.  In the event the earnings data is not
available, or in the event the review process of the earnings data or the
weather normalization review process does not allow for a September 1, 1998
effective date, the following will occur:  An additional credit, equal to the
excess revenues billed between September 1, 1998 and the effective date of the
rate reduction, will be made.  Said credit will be made at the same time and
pursuant to the same procedures as the Sharing Credits in Case Nos. ER-95-411
and EO-96-14.  If no Sharing Credits are to be made for the third Sharing Period
in Case Nos. ER-95-411 

                                       6
<PAGE>
 
and EO-96-14, the excess revenue credit will be made as expeditiously as
possible.

      UE shall file tariff sheets for Commission approval consistent with this
Section.

7.    New Experimental Alternative Regulation Plan (New Plan)

      a.   The New Plan will be instituted July 1, 1998 at the end of the ARP
           created in Case No. ER-95-411. In its Report And Order approving this
           Stipulation And Agreement, the Commission shall create a new docket
           to facilitate the New Plan ("New Plan Docket"). All signatories to
           this Stipulation And Agreement shall be made parties to the New Plan
           Docket, as intervenors or as a matter of right, as will the parties
           to Case No. EO-96-14 who are not parties to Case No. EM-96-149,
           without the necessity of taking further action. (There are three such
           parties: (1) Asarco Inc. and the Doe Run Co.; (2) Cominco American;
           and (3) Missouri Retailers Association.)

                                       7
<PAGE>
 
b.   The following Sharing Grid is to be utilized as part of the New Plan:

================================================================================
             Earnings Level                             Sharing     Sharing
   (Missouri Retail Electric Operations)                 Level       Level
- --------------------------------------------------------------------------------
                                                          UE        Customer
- --------------------------------------------------------------------------------
 1.  Up to and including 12.61%                          100%          0%
     Return on Equity (ROE)
- --------------------------------------------------------------------------------
 2.  That portion of earnings greater                     50%         50%
     than 12.61% up to and including
     14.00% ROE 
- --------------------------------------------------------------------------------
 3.  That portion of earnings greater                     10%         90%
     than 14.00% up to and including
     16.00% ROE
- --------------------------------------------------------------------------------
 4.  That portion of earnings greater                      0%        100%
     than 16.00% ROE
================================================================================

c.   The New Plan will be in effect for a full three year period. For purposes
     of this New Plan, there shall be three (3) "Sharing Periods." The first
     Sharing Period shall be from July 1, 1998 through June 30, 1999; the
     second, from July 1, 1999 through June 30, 2000; and the third, from July
     1, 2000 through June 30, 2001. UE may not file an electric rate increase
     case, and Staff, OPC and other signatories may not file, encourage or
     assist others to file a rate reduction case through June 30, 2001, unless:

                                       8
<PAGE>
 
          i.     UE's return on common equity falls below 10.00% for a twelve
                 month Sharing Period (calculated as indicated in Attachment C
                 appended hereto); or

          ii.    An event occurs which would have a major effect on UE, such as,
                 an act of God, a significant change in the federal or state tax
                 laws, a significant change in federal or state utility law or
                 regulation (but not including the retail wheeling pilot project
                 described in Section 5), or an extended outage or shutdown of a
                 major generating unit(s).
 
                 In the event UE files an electric rate increase case, any
          sharing credits due for the current or prior Sharing Period will
          remain the obligation of UE, and the New Plan shall terminate at the
          conclusion of the then current Sharing Period.

                 In the event any signatory files a rate reduction case, any
          sharing credits due for the current or prior Sharing Period will
          remain the obligation of UE, and the parties to that case will
          recommend to the Commission whether the New Plan should remain in
          effect as currently structured, be modified or terminated.

                                       9
<PAGE>
 
                 In the event that a significant change in federal or state
          utility law or regulation (but not including the retail wheeling pilot
          project described in Section 5) occurs, nothing herein shall prohibit
          any signatory from filing for Commission consideration a customer
          class cost of service and comprehensive rate design proposal, either
          as a part of or separate from a rate increase or rate reduction case;
          provided that any party may oppose such filing and shall not be deemed
          to have consented either to the establishment of a new docket to
          consider such request or to the proposals of the party making such
          request.

                 Upon any termination of the New Plan pursuant to the foregoing,
          the signatories will have no further obligation under this Section 7.

     d.   Except as set out immediately above in Subsection c. and below in
          Subsection h. and  Subsection i., UE's rates resulting from this
          Stipulation And Agreement will continue in effect throughout the three
          year New Plan period, and thereafter, until changed as a result of a
          rate increase case, a rate reduction case, or other 

                                       10
<PAGE>
 
          appropriate Commission action, for example, as contemplated by
          Subsection g. below.

     e.   Monitoring of the New Plan will be based on UE supplying to Staff and
          OPC, on a timely basis, the reports and data identified below.  These
          reports and data must be provided as part of the New Plan.  Other
          signatories to this Stipulation And Agreement may also participate in
          the monitoring of the New Plan, and receive the reports and data,
          after executing appropriate documents assuring the confidential
          treatment of the information provided. Staff, OPC and the other
          signatories participating in the monitoring of the New Plan may follow
          up with data requests, meetings and interviews, as required, to which
          UE will respond on a timely basis.  UE will not be required to develop
          any new reports, but information presently being recorded and
          maintained by UE may be requested. The reports and data that must be
          provided include the following:

          i.     Annual operating and construction budgets and any
                 updates/revisions with explanations/reasons for
                 updates/revisions;

                                       11
<PAGE>
 
          ii.    Monthly operating budgets and any updates/revisions with
                 explanations/reasons for updates/revisions;

          iii.   Annually - explanation of significant variances between budgets
                 and actual;

          iv.    Monthly Financial & Statistical (F&S) reports;

          v.     Directors reports;

          vi.    Current chart of accounts;

          vii.   Monthly surveillance reports;

          viii.  Quarterly reports/studies of rate of return on rate base
                 including supporting workpapers;

          ix.    Annual summary of major accruals.

     f.   The sharing of earnings in excess of 12.61%, as contemplated by the
          Sharing Grid set out above, is to be accomplished by the granting of a
          credit to UE's Missouri retail electric customers by applying credits
          to customers' bills in the same manner as applied in Case No. ER-95-
          411, and as set forth in Attachment B.  A notice to customers
          explaining the Sharing Credits will accompany customers' bills on
          which the Sharing Credits will appear.  UE will submit the proposed
          language for such notice to the Staff and the OPC for their review.

                                       12
<PAGE>
 
          i.     The return on common equity for determination of "sharing" will
                 be calculated by using the methodology set out in Attachment C,
                 Reconciliation Procedure, appended hereto.

          ii.    Staff, OPC and UE have conferred and determined what items,
                 based on prior Commission Orders, should be excluded from the
                 calculation of UE's return on equity.  These items are
                 identified in Attachment C.

          iii.   The twelve month period used to determine credits will be the
                 immediately preceding Sharing Period.

          iv.    Within 90 days after the conclusion of a Sharing Period, a
                 preliminary earnings report, along with a proposed "Sharing
                 Report" will be submitted by UE. A final earnings report and
                 proposed Sharing Report will be filed in the New Plan Docket
                 within 105 days after the end of the Sharing Period. The final
                 earnings report will provide the actual results of the Sharing
                 Period to be examined.

          v.     UE's earnings will be adjusted to normalize the effects of any
                 sharing credits from the Sharing 

                                       13
<PAGE>
 
                 Period which are reflected in the earnings for that period.
                 Earnings will not be adjusted for the rate reduction described
                 in "Section 6. Rate Reduction" of this Stipulation And
                 Agreement.

          vi.    If Staff, OPC or other signatories find evidence that operating
                 results have been manipulated to reduce amounts to be shared
                 with customers or to misrepresent actual earnings or expenses,
                 Staff, OPC or other signatories may file a complaint with the
                 Commission requesting that a full investigation and hearing be
                 conducted regarding said complaint.  UE shall have the right to
                 respond to such request and present facts and argument as to
                 why an investigation is unwarranted.

          vii.   UE, Staff, OPC and other signatories reserve the right to bring
                 issues which cannot be resolved by them, and which are related
                 to the operation or implementation of the New Plan, to the
                 Commission for resolution. Examples include disagreements as to
                 the mechanics of calculating the monitoring report, alleged
                 violations of the Stipulation And

                                       14
<PAGE>
 
                 Agreement, alleged manipulations of earnings results, or
                 requests for information not previously maintained by UE.  An
                 allegation of manipulation could include significant variations
                 in the level of expenses associated with any category of cost,
                 where no reasonable explanation has been provided.  The
                 Commission will determine in the first instance whether a
                 question of manipulation exists and whether that question
                 should be heard by it.

          viii.  Staff, OPC and other signatories have the right to present to
                 the Commission concerns over any category of cost that has been
                 included in UE's monitoring results and has not been included
                 previously in any ratemaking proceeding.

          ix.    Differences among UE, Staff, OPC and other signatories will be
                 brought to the Commission's attention for guidance as early in
                 the process as possible.

          x.     A final report will be filed within 105 days after the Sharing
                 Period (or the first business day thereafter).  Signatory
                 parties to this 

                                       15
<PAGE>
 
                 Stipulation And Agreement will have thirty (30) days after a
                 final report is filed to provide notice that there may be areas
                 of disagreement not previously brought to the attention of the
                 Commission that need to be resolved.

     g.   In the final year of the New Plan, UE, Staff, OPC and other
          signatories to this Stipulation And Agreement shall meet to review the
          monitoring reports and additional information required to be provided.
          By February 1, 2001, UE, Staff and OPC will file, and other
          signatories may file their recommendations with the Commission as to
          whether the New Plan should be continued as is, continued with changes
          (including new rates, if recommended) or discontinued.  Copies of the
          recommendations shall be served on all parties to UE's New Plan
          Docket.  As previously noted herein, the rates resulting from this
          Stipulation And Agreement will continue in effect after the three year
          New Plan period until UE's rates are changed as a result of a rate
          increase case, a rate reduction case, or other appropriate Commission
          action.

     h.   After July 1, 1998, any party may file with the Commission a request
          for consideration of changes in rate

                                       16
<PAGE>
 
          design and/or other tariff provisions which it would be appropriate
          for the Commission to consider outside the context of a customer class
          cost of service and comprehensive rate design docket or a rate case;
          provided, however, that no change will result in any shift of revenues
          among classes before July l, 2001; and provided further that if a
          request for consideration of changes in rate design and/or other
          tariff provisions is filed, any party may oppose such request and
          shall not be deemed to have consented to the establishment of a new
          docket to consider such request or to the proposals of the party
          making such request.

                 A change in rate design and/or other tariff provisions is not
          considered by the signatories to this Stipulation And Agreement as
          constituting a shift of revenues among customer classes if it will
          result in a customer or customers being charged lower rates but will
          not result in either (1) a major decrease in revenues to UE
          (respecting which UE is precluded by this section from recovering from
          other customers at any time while the New Plan is in effect) or (2) a
          significant reduction in the credits that would otherwise be available
          for 

                                       17
<PAGE>
 
          distribution. It may be argued by a signatory to this Stipulation And
          Agreement that the cumulative effect of multiple changes in rate
          design and/or other tariff provisions which results in either (1) a
          major decrease in revenues to UE (respecting which UE is precluded
          from recovering from other customers at any time while the New Plan is
          in effect), or (2) a significant reduction in credits that would
          otherwise be available for distribution, constitutes a shift of
          revenues among customer classes and, therefore, the proposed change(s)
          is precluded.

                 How revenues foregone by UE as a result of a change in rate
          design and/or other tariff provisions will be treated for purposes of
          the New Plan Reconciliation Procedure (Attachment C), which impacts
          the calculation of where UE falls on the Sharing Grid, will be
          determined on a case-by-case basis by agreement of the signatories to
          this Stipulation And Agreement, or by the Commission if agreement
          cannot be reached.  Furthermore, such foregone revenues shall not be
          excluded from any calculation of UE's return on common equity for
          purposes of determining whether UE may file an electric rate 

                                       18
<PAGE>
 
          increase under the terms of this Stipulation And Agreement or increase
          its Missouri retail electric service rates to reflect a Commission
          Order authorizing an increase in UE's annual nuclear decommissioning
          expense/funding from its then current level.

                 This section is not intended to preclude presentation to the
          Commission and Commission resolution of disputes respecting the proper
          application of UE's tariffs; nor is this section intended to preclude
          presentation to the Commission and Commission resolution of a proposed
          major decrease in revenues to UE, and/or significant reduction in
          credits that would otherwise be available for distribution, requested
          as a result of a situation which will have a significant adverse
          impact on one or more of UE's customers and which, as a consequence,
          will also have a significant adverse impact on UE and its customers;
          provided that any party may oppose such request and shall not be
          deemed to have consented to the establishment of a new docket to
          consider such request or to the proposals of the party making such
          request.

                                       19
<PAGE>
 
     i.   UE will file its cost of nuclear decommissioning study with the
          Commission as required by September 1, 1999.  If the Commission Order
          in that proceeding results in a decrease in annual nuclear
          decommissioning expense/funding from its then current level, UE's
          Missouri retail electric service rates will not be changed to reflect
          the decrease in expense/funding. Instead, nuclear decommissioning
          expense/funding will be decreased (effective as of the date provided
          in the nuclear decommissioning cost Order) with the total difference,
          i.e., 100% of the pro-rated difference, between the lower
          expense/funding level and the then current level, being treated as a
          credit to each Sharing Period of the New Plan as provided for in
          Attachment C hereto. If no sharing occurs for a Sharing Period for
          which there is a decrease in the nuclear decommissioning
          expense/funding level, then the decrease in the nuclear
          decommissioning expense/funding for that Sharing Period will be
          carried over to the subsequent Sharing Period. Since the difference
          between the prospective lower expense/funding level and the then
          current level will be treated as a credit in each Sharing Period and
          the 

                                       20
<PAGE>
 
          difference will be carried over to the subsequent Sharing Period
          if no sharing occurs for the current Sharing Period, no decrease in
          the then current expense level will be reflected in the calculation of
          UE's ROE in determining sharing under the New Plan, pursuant to
          Attachment C.

                 If the Commission Order in the nuclear decommissioning
          proceeding results in an increase in expense/funding above its then
          current level, for purposes of determining the implementation of a
          rate increase only, the increased expense will be annualized in
          calculating UE's return on equity for the earliest possible Sharing
          Period for which a preliminary earnings/proposed sharing report has
          not yet been filed at the time of the issuance of the Commission Order
          in the nuclear decommissioning docket. If UE's return on common equity
          (ROE) on this basis is less than 10.00% (calculated as indicated in
          Attachment C appended hereto), then the increased expense will result
          in an increase in UE's Missouri retail electric service rates as
          allowed by Section 393.292 RSMo. 1994. If UE's ROE on the above basis
          exceeds 10.00%, then the increased

                                       21
<PAGE>
 
          expense will not result in any increase in UE's Missouri retail
          electric service rates; however, the actual amount of increased
          expense (unannualized) will be reflected in the calculation of UE's
          ROE in determining sharing under the New Plan.

                 In any case, the Commission shall include language in its 1999
          Callaway decommissioning case Report And Order substantially similar
          to that used in Case No. EO-94-81, specifically finding that the
          Callaway decommissioning costs are included in UE's then current cost
          of service and are reflected in its then current electric service
          rates for ratemaking purposes.

                 All signatories will be notified of UE's filing of its 1999
          nuclear decommissioning cost case.

8.   State Jurisdictional Issues

     a.   Access to Books, Records and Personnel.  UE and its prospective
          holding company, Ameren, agree to make available to the Commission, at
          reasonable times and places, all books and records and employees and
          officers of Ameren, UE and any affiliate or subsidiary 

                                       22
<PAGE>
 
          of Ameren shall have the right to object to such production of records
          or personnel on any basis under applicable law and Commission rules,
          excluding any objection that such records and personnel are not
          subject to Commission jurisdiction by operation of the Public Utility
          Holding Company Act of 1935 ("PUHCA"). In the event that rules
          imposing any affiliate guidelines regarding access to books, records
          and personnel applicable to similarly situated electric utilities in
          Missouri are adopted, then UE, Ameren and each affiliate or subsidiary
          thereof shall become subject to the same rules as such other similarly
          situated electric utilities in lieu of this paragraph.

     b.   Voluntary and Cooperative Discovery Practices.  UE, Ameren and any
          affiliate or subsidiary thereof agree to continue voluntary and
          cooperative discovery practices.

     c.   Accounting Controls.  UE, Ameren and each of its affiliates and
          subsidiaries shall employ accounting and other procedures and controls
          related to cost allocations and transfer pricing to ensure and
          facilitate full review by the Commission and to protect against cross-
          subsidization of non-UE Ameren businesses by UE's retail 

                                       23
<PAGE>
 
          customers. In the event that rules imposing any affiliate guidelines
          regarding accounting controls applicable to similarly situated
          electric utilities in Missouri are adopted, then UE, Ameren and each
          affiliate or subsidiary thereof shall become subject to the same rules
          as such other similarly situated electric utilities in lieu of this
          paragraph.

     d.   Contracts Required to be Filed with the SEC.  All contracts,
          agreements or arrangements, including any amendments thereto, of any
          kind between UE and any affiliate, associate, holding, mutual service,
          or subsidiary company within the same holding company system, as these
          terms are defined in 15 U.S.C. (S) 79b, as subsequently amended,
          required to be filed with and/or approved by the Securities and
          Exchange Commission ("SEC") pursuant to PUHCA, as subsequently
          amended, shall be conditioned upon the following without modification
          or alteration: UE and Ameren and each of its affiliates and
          subsidiaries will not seek to overturn, reverse, set aside, change or
          enjoin, whether through appeal or the initiation or maintenance of any
          action in any forum, a decision or order of the Commission which
          pertains to

                                       24
<PAGE>
 
          recovery, disallowance, deferral or ratemaking treatment of any
          expense, charge, cost or allocation incurred or accrued by UE in or as
          a result of a contract, agreement, arrangement or transaction with any
          affiliate, associate, holding, mutual service or subsidiary company on
          the basis that such expense, charge, cost or allocation has itself
          been filed with or approved by the SEC or was incurred pursuant to a
          contract, arrangement, agreement or allocation method which was filed
          with or approved by the SEC.

     e.   Electric Contracts Required to be Filed with the FERC.  All wholesale
          electric energy or transmission service contracts, tariffs, agreements
          or arrangements, including any amendments thereto, of any kind,
          including the Joint Dispatch Agreement, between UE and any Ameren
          subsidiary or affiliate required to be filed with and/or approved by
          the Federal Energy Regulatory Commission ("FERC"), pursuant to the
          Federal Power Act("FPA"), as subsequently amended, shall be
          conditioned upon the following without modification or alteration:  UE
          and Ameren and each of its affiliates and subsidiaries will not seek
          to overturn, reverse, set aside, change or enjoin, whether

                                       25
<PAGE>
 
          through appeal or the initiation or maintenance of any action in any
          forum, a decision or order of the Commission which pertains to
          recovery, disallowance, deferral or ratemaking treatment of any
          expense, charge, cost or allocation incurred or accrued by UE in or as
          a result of a wholesale electric energy or transmission service
          contract, agreement, arrangement or transaction on the basis that such
          expense, charge, cost or allocation has itself been filed with or
          approved by the FERC, or was incurred pursuant to a contract,
          arrangement, agreement or allocation method which was filed with or
          approved by the FERC.

     f.   Gas Contracts Required to be Filed with the FERC.  All gas supply,
          storage and/or transportation service contracts, tariffs, agreements
          or arrangements, including any amendments thereto, of any kind between
          UE and any Ameren subsidiary or affiliate required to be filed with
          and/or approved by the FERC, pursuant to the Natural Gas Act ("NGA"),
          as subsequently amended, shall be conditioned upon the following
          without modification or alteration:  UE and Ameren and each of its
          affiliates and subsidiaries will not seek to overturn, reverse, set

                                       26
<PAGE>
 
          aside, change or enjoin, whether through appeal or the initiation or
          maintenance of any action in any forum, a decision or order of the
          Commission which pertains to recovery, disallowance, deferral or
          ratemaking treatment of any expense, charge, cost or allocation
          incurred or accrued by UE in or as a result of a gas supply, storage
          and/or transportation service contract, agreement, arrangement or
          transaction on the basis that such expense, charge, cost or allocation
          has itself been filed with or approved by the FERC or was incurred
          pursuant to a contract, arrangement, agreement or allocation method
          which was filed with or approved by the FERC.

     g.   No Pre-Approval of Affiliated Transactions.  No pre-approval of
          affiliated transactions will be required, but all filings with the SEC
          or FERC for affiliated transactions will be provided to the Commission
          and the OPC.  The Commission may make its determination regarding the
          ratemaking treatment to be accorded these transactions in a later
          ratemaking proceeding or a proceeding respecting any alternative
          regulation plan.

     h.   Contingent Jurisdictional Stipulation -- FERC.  In the exclusive event
          that any court with jurisdiction over UE, 

                                       27
<PAGE>
 
          Ameren or any of its affiliates or subsidiaries issues an opinion or
          order which invalidates a decision or order of the Commission
          pertaining to recovery, disallowance, deferral or ratemaking treatment
          of any expense, charge, cost or allocation incurred or accrued by UE
          on the basis that such expense, charge, cost, or allocation has itself
          been filed with or approved by the FERC, then the Contingent
          Jurisdictional Stipulation, attached hereto as Attachment D, shall
          apply to FERC filings according to its terms, at the option of the
          Commission.

     i.   Contingent Jurisdictional Stipulation -- SEC.  In the exclusive event
          that any court with jurisdiction over UE, Ameren or any of its
          affiliates or subsidiaries issues an opinion or order which
          invalidates a decision or order of the Commission pertaining to
          recovery, disallowance, deferral or ratemaking treatment of any
          expense, charge, cost or allocation incurred or accrued by UE on the
          basis that such expense, charge, cost, or allocation has itself been
          filed with or approved by the SEC, then the Contingent Jurisdictional
          Stipulation, attached hereto as Attachment D, shall apply to SEC
          filings according to its terms, at the option of the Commission.

                                       28
<PAGE>
 
          Commitments covered by the provisions of this Section 8 should not be
     construed as concurrence or acquiescence by UtiliCorp United Inc., The
     Empire District Electric Company, Missouri Gas Energy, Kansas City Power &
     Light Company or Trigen - St. Louis Energy Corp. in any of these
     provisions.

9.   Staff Conditions To Which UE Has Agreed

     a.   UE agrees to abide by the Stipulation And Agreement in Case No. GR-93-
          106, including, but not limited to, the following:

          i.     UE agrees it will meet with the Staff, at the Staff's request,
                 prior to the commencement of the Staff's audit of each future
                 UE Actual Cost Adjustment ("ACA") filing, to discuss the
                 activities of UE during the applicable ACA period.

          ii.    UE agrees to prepare a written study or analysis of:  (i) each
                 material natural gas-related contract decision; and (ii) each
                 major FERC decision materially affecting UE in proceedings of
                 pipelines providing service to UE and final FERC regulations
                 which materially affect UE.  Subject to applicable legal
                 privileges, UE agrees 

                                       29
<PAGE>
 
                 to provide such document to the Staff upon its request during
                 the applicable ACA audit.

          iii.   UE agrees to continually monitor its participation before the
                 FERC as a member of the Panhandle Customer Group and not join
                 in Group activities in instances when, in UE's judgment, its
                 interests are not adequately protected.

          iv.    The Staff may make evaluations of and propose adjustments to
                 post-FERC Order 636 restructured services and related costs
                 during the applicable ACA audit.

     b.   UE shall continue to provide to the Staff monthly surveillance reports
          in the same format which is currently being utilized in submittals to
          the Staff (or in some other mutually agreeable format), so that the
          Staff can continue to monitor UE's Missouri jurisdictional electric
          and natural gas earnings levels.

     c.   On a quarterly basis, Ameren and UE shall provide the Commission with
          a report detailing UE's proportionate share of Ameren:  (i) total
          consolidated assets; (ii) total consolidated operating revenues; (iii)
          total 

                                       30
<PAGE>
 
          operating and maintenance expense; and (iv) total consolidated number
          of employees.

     d.   The data associated with the hour-by-hour After-The-Fact Resource
          Allocation which will be performed pursuant to the Joint Dispatch
          Agreement will be archived in an electronic format and submitted to
          the Staff annually.

     e.   The Commission shall have access to all financial information on all
          affiliates, subsidiaries or divisions, regulated or non-regulated, and
          any future utility or non-utility affiliate, subsidiary or division of
          Ameren or an Ameren affiliate, subsidiary or division, necessary to
          calculate an estimate of the stockholders' required return on equity
          (ROE) for Ameren on a consolidated basis and then a differentiated ROE
          for each affiliate, subsidiary or division, including UE, on a stand-
          alone basis.

     f.   UE will provide the historical hourly generation data required by
          Commission rule 4 CSR 240-20.080 in electronic format accessible by a
          spreadsheet program.  UE will provide the historical purchase power
          data and interchange sales data required by Commission rule 4 CSR 240-
          20.080 in hard copy until it is available in 

                                       31
<PAGE>
 
          electronic format accessible by a spreadsheet program. UE expects by
          July 1, 1997 this purchase power data and interchange sales data to be
          available in electronic format accessible by a spreadsheet program
          when the centralized control center completes modifications to the
          energy management computer system to accommodate joint dispatch.

     g.   UE agrees that respecting the General Services Agreement ("GSA"), the
          Staff and other proper parties, in the context of UE's general rate
          filings and/or alternative regulation plans, retain the right to bring
          concerns to the Commission and propose adjustments, if necessary,
          regarding the GSA's rate impact on Missouri customers, and the
          Commission retains jurisdiction to consider and adopt such
          adjustments.  (See also Sections 8.d. and 8.g. above concerning state
          jurisdictional issues.)

                                       32
<PAGE>
 
10.  System Support Agreement

     The signatories other than the Missouri Industrial Energy Consumers
("MIEC") agree that the 10-year System Support Agreement ("SSA"), as described
in Ms. Maureen A. Borkowski's Supplemental Direct Testimony, pages 1 to 3,
should be approved by the Commission pursuant to the following conditions.

     First, the approval of the 10-year SSA shall not be construed as approval
by the Commission or the signatories for the capacity and energy addressed in
the 10-year SSA to be allocated to Missouri jurisdictional ratepayers.

     Second, regarding the appropriateness of the future utilization of the
capacity and energy addressed in the SSA for serving UE's Missouri customers:

     a.   UE will undertake an integrated resource planning process at the
          appropriate time in the future to determine if the capacity and energy
          used to serve its then former Illinois customers should, in UE's
          judgment, serve the Missouri jurisdiction.

     b.   In UE's ongoing consideration of purchase power opportunities for
          native system load that periodically become available, it will
          evaluate, on an equivalent basis, the costs and risks of:  (i)
          purchase power 

                                       33
<PAGE>
 
          opportunities; (ii) energy and capacity that is no
          longer needed or will no longer be needed to serve UE's then
          former Illinois customers; and (iii) newly-constructed capacity.

     c.   UE will provide the results of and workpapers supporting the analysis
          performed pursuant to Subsections a. and b. above to the Staff, OPC
          and MIEC.

     d.   The Commission has the authority in any future ratemaking proceedings
          to allocate the capacity and energy addressed in the SSA.

11.  Commission Rights

     Nothing in this Stipulation And Agreement is intended to impinge or
restrict in any manner the exercise by the Commission of any statutory right,
including the right of access to information, and any statutory obligation.

12.  Staff Rights

     If requested by the Commission, the Staff shall have the right to submit to
the Commission a memorandum explaining its rationale for entering into this
Stipulation And Agreement. Each party of record shall be served with a copy of
any memorandum and shall be entitled to submit to the Commission, within five
(5) days of receipt of the Staff's memorandum, a responsive memorandum which

                                       34
<PAGE>
 
shall also be served on all parties. All memoranda submitted by the parties
shall be considered privileged in the same manner as are settlement discussions
under the Commission's rules, shall be maintained on a confidential basis by all
parties, and shall not become a part of the record of this proceeding or bind or
prejudice the party submitting such memorandum in any future proceeding or in
this proceeding whether or not the Commission approves this Stipulation And
Agreement. The contents of any memorandum provided by any party are its own and
are not acquiesced in or otherwise adopted by the other signatories to this
Stipulation And Agreement, whether or not the Commission approves and adopts
this Stipulation And Agreement.

     The Staff also shall have the right to provide, at any agenda meeting at
which this Stipulation And Agreement is noticed to be considered by the
Commission, whatever oral explanation the Commission requests, provided that the
Staff shall, to the extent reasonably practicable, provide the other parties
with advance notice of when the Staff shall respond to the Commission's request
for such explanation once such explanation is requested from the Staff. The
Staff's oral explanation shall be subject to public disclosure, except to the
extent it refers to matters that are 

                                       35
<PAGE>
 
privileged or protected from disclosure pursuant to any Protective Order issued
in this case.

13.  No Acquiescence

     None of the signatories to this Stipulation And Agreement shall be deemed
to have approved or acquiesced in any question of Commission authority,
accounting authority order principle, cost of capital methodology, capital
structure, decommissioning methodology, ratemaking principle, valuation
methodology, cost of service methodology or determination, depreciation
principle or method, rate design methodology, cost allocation, cost recovery, or
prudence, that may underlie this Stipulation And Agreement, or for which
provision is made in this Stipulation And Agreement.

14.  Negotiated Settlement

     This Stipulation And Agreement represents a negotiated settlement. Except
as specified herein, the signatories to this Stipulation And Agreement shall not
be prejudiced, bound by, or in any way affected by the terms of this Stipulation
And Agreement: (a) in any future proceeding, (b) in any proceeding currently
pending under a separate docket; and/or (c) in this proceeding should the
Commission decide not to approve this Stipulation And Agreement in the instant
proceeding, or in any way condition its

                                       36
<PAGE>
 
approval of same, or should the merger with CIPSCO not be consummated.

15.  Provisions Are Interdependent

     The provisions of this Stipulation And Agreement have resulted from
negotiations among the signatories and are interdependent. In the event that the
Commission does not approve and adopt the terms of this Stipulation And
Agreement in total, it shall be void and no party hereto shall be bound,
prejudiced, or in any way affected by any of the agreements or provisions
hereof.

16.  Prepared Testimony

     The prepared testimonies and schedules of the following witnesses shall be
received into evidence without the necessity of these witnesses taking the
witness stand:

     Union Electric Company:
     -----------------------
     Charles W. Mueller (Direct Testimony)
     Donald E. Brandt (Direct and Surrebuttal Testimonies)
     Thomas J. Flaherty (Direct and Surrebuttal Testimonies)
     Warner L. Baxter (Direct, Supplemental Direct, Second
          Supplemental Direct, Surrebuttal and Supplemental 
          Surrebuttal Testimonies)
     Douglas W. Kimmelman (Direct Testimony)
     Maureen A. Borkowski (Direct, Supplemental Direct and
          Surrebuttal Testimonies)
     Jerre E. Birdsong (Direct and Surrebuttal Testimonies)
     Gary L. Rainwater (Direct and Surrebuttal Testimonies)
     Craig D. Nelson (Surrebuttal Testimony)
     James A. Reid (Surrebuttal Testimony)

                                       37
<PAGE>
 
     Commission Staff:
     -----------------

     Daniel I. Beck (Rebuttal and Supplemental Rebuttal 
          Testimonies)
     David W. Elliott (Rebuttal Testimony)
     Cary G. Featherstone (Rebuttal Testimony)
     Charles R. Hyneman (Rebuttal Testimony)
     Thomas M. Imhoff (Rebuttal Testimony)
     Tom Y. Lin (Rebuttal Testimony)
     Jay W. Moore (Rebuttal Testimony)
     Mark L. Oligschlaeger (Rebuttal Testimony)
     James D. Schwieterman (Rebuttal and Supplemental Rebuttal
          Testimonies)
     Michael J. Wallis (Rebuttal Testimony)

     Office of Public Counsel:
     -------------------------

     Russell W. Trippensee (Rebuttal Testimony)
     Mark Burdette (Rebuttal Testimony)
     Ryan Kind (Rebuttal and Cross-Surrebuttal Testimonies)

     Missouri Industrial Energy Consumers:
     -------------------------------------

     Maurice Brubaker (Direct Testimony)

17.  Waive Rights to Cross Examination, etc.

     In the event the Commission accepts the specific terms of this Stipulation
And Agreement, the signatories waive their respective rights to cross-examine
witnesses; their respective rights to present oral argument and written briefs
pursuant to Section 536.080.1 RSMo. 1994; their respective rights to the reading
of the transcript by the Commission pursuant to Section 536.080.2 RSMo. 1994;
and their respective rights to judicial review pursuant to Section 386.510 RSMo.
1994. This waiver applies only to a 

                                       38
<PAGE>
 
Commission Report And Order issued in this proceeding, and does not apply to any
matters raised in any subsequent Commission proceeding, or any matters not
explicitly addressed by this Stipulation And Agreement.

18.  Operative Dates

     The following sections of this Stipulation And Agreement shall become
operative upon approval of this agreement by the Commission: Sections 1-5 and 8-
17.

     The following sections shall become operative at the expiration of the ARP
 on June 30, 1998: Sections 6-7.

                                            Respectfully submitted,

OFFICE OF THE PUBLIC COUNSEL                UNION ELECTRIC COMPANY/CIPSCO
 
 
By /s/ Lewis R.Mills, Jr.                   By /s/ James J. Cook              
   ---------------------------                 ---------------------------
   Lewis R. Mills, Jr. (#35275)                James J. Cook  (#22697)      
   Deputy Public Counsel                       Associate General Counsel    
   P.O. Box 7800                               P. O. Box 149, MC 1310       
   Jefferson City, MO 65102                    St. Louis, MO  63166         
   (573) 751-4857                              (314) 554-2237               

                                       39
<PAGE>
 
STAFF OF THE MISSOURI                       ANHEUSER-BUSCH, INC., ET AL.
PUBLIC SERVICE COMMISSION                   (MIEC)
 
 
By /s/ Steven Dottheim                      By /s/ Robert C. Johnson        
   ---------------------------                 ---------------------------  
   Steven Dottheim (#29149)                    Robert C. Johnson (#15755)   
   Deputy General Counsel                      Michael R. Annis (#47374)    
   Aisha Ginwalla (#41608)                     Peper, Martin, et al.        
   Roger W. Steiner (#39586)                   720 Olive Street, 24th Fl.   
   Assistant General Counsel                   St. Louis, MO 63101-2396     
   P.O. Box 360                                (314) 421-3850                
   Jefferson City, MO 65102
   (573) 751-7489
 
TRIGEN-ST. LOUIS ENERGY CORP.               UTILICORP UNITED INC.               
                                            THE EMPIRE DISTRICT ELECTRIC CO.    
                                                                                
                                                                                
By /s/ Richard W. French                    By /s/ James C. Swearengen
   ---------------------------                 ---------------------------
   Richard W. French (#27356)                  James C. Swearengen (#21510)  
   French & Stewart                            Brydon, Swearengen & England  
   1001 Cherry St., Suite 302                  P.O. Box 456                  
   Columbia, MO 65201                          Jefferson City, MO 65102      
   (573) 499-0635                              (573) 635-7166                
 
MISSOURI GAS ENERGY, A DIVISION             LACLEDE GAS COMPANY
OF SOUTHERN UNION COMPANY
                                               Will not sign, and will not 
                                               support or oppose -- letter
By /s/ Gary W. Duffy                        By to follow. 
   ----------------------------                ------------------------------
   Gary W. Duffy (#24905)                      Michael C. Pendergast (#31763)   
   Brydon, Swearengen & England                Laclede Gas Company           
   England                                     720 Olive St., Room 1520      
   P.O. Box 456                                St. Louis, MO 63101           
   Jefferson City, MO 65102                    (314) 342-0532                
   (573) 635-7166   

                                       40
<PAGE>
 
STATE OF MISSOURI                           ILLINOIS POWER COMPANY
OFFICE OF ATTORNEY GENERAL
                                               Will not sign, and will not 
                                               support or oppose -- letter
By /s/ Jeremiah W. Nixon                    By to follow.   By SD
   ----------------------------                ---------------------------
   Jeremiah W. Nixon                           Paul S. DeFord (#29509)          
   Daryl R. Hylton (#35605)                    Lathrop &  Gage                  
   Office of Attorney General                  2345 Grand Blvd., Suite 2500     
   P.O. Box 899                                Kansas City, MO 64108            
   Jefferson City, MO 65102                    (816) 460-5827 
   (573) 751-1143

INTERNATIONAL BROTHERHOOD OF                KANSAS CITY POWER & LIGHT CO.
ELECTRICAL WORKERS
LOCALS 702, 309, 1455, AND 2                By /s/ James Fischer              
                                               ---------------------------  
   Will not sign, and will not                 James Fischer (#27543)       
   support or oppose -- see                    Attorney at Law              
By letter this date. By SD                     101 W. McCarty, Suite 215    
   ---------------------------                 Jefferson City, MO 65101     
   Marilyn S. Teitelbaum                       (573) 636-6758                
   (#26074)                                 
   Schuchat, Cook & Werner                  
   1221 Locust St., 2nd Floor               
   St. Louis, MO 63101                      
   (314) 621-2626
 


DATED: 7/12/96 SD
      -----------

                                       41
<PAGE>
 
         [LETTERHEAD OF SCHUCHAT, COOK & WERNER LETTERHEAD APPEARS HERE]


Mr. David L. Rauch, Executive Secretary
Missouri Public Service Commission
P.O. Box 360
Jefferson City, MO 65102

     RE:  Case No. EM-96-149

Dear Mr. Rauch:

     Intervenors IBEW, Locals 702, 1455, 309 and 2 do not concur or acquiesce in
the Stipulation and Agreement in the above mentioned case, but they are not in 
opposition to it either. Furthermore, they are not requesting a hearing.

     I am enclosing 14 copies of this letter for distribution. If you have any 
questions, please contact me.

                                   Sincerely,
                                   
                                   /s/ Marilyn S. Teitelbaum 

                                   Marilyn S. Teitelbaum 
MST: jim

Enclosures

cc:  Parties of Record
     Judge Joseph Derque
     Steve Dottheim
     Mike Datillo, Local 1455
     Jim Berger, Local 309
     Dave White, Local 2
     Danny Miller, Local 702
<PAGE>
 
Service list for:                               Lewis R. Mills, Jr.
Case No. EM-96-149                              Office of the Public Counsel
Updated: 7-12-96                                P.O. Box 7800
                                                Jefferson City, MO 65102

James J. Cook                                   James C. Swearengen
Union Electric Company                          Brydon, Swearengen & England
1901 Chouteau Avenue                            312 E. Capitol
P.O. Box 149 (M/C 1310)                         P.O. Box 456
St. Louis, MO 63103                             Jefferson City, MO 65102

Richard W. French                               Marilyn S. Teitelbaum
French & Stewart                                Schuchat, Cook & Werner
1001 E. Cherry Street                           1221 Locust Street
Suite 302                                       2nd Floor
Columbia, MO 65201                              St. Louis, MO 63103

Michael C. Pendergast                           Gary W. Duffy
Laclede Gas Company                             Brydon, Swearengen & England
720 Olive Street                                312 E. Capitol Avenue
Room 1530                                       P.O. Box 456
St. Louis, MO 63101                             Jefferson City, MO 65102

Robert C. Johnson/Diana M. Schmidt              Paul S. DeFord
Peper, Martin, Jensen, Maichel and Hetlage      Lathrop & Norquist, L.C.
720 Olive Street                                2345 Grand Blvd.
24th Floor                                      Suite 2500
St. Louis, MO 64141-9679                        Kansas City, MO 64108

Jeremiah W. Nixon/Daryl R. Hylton               James M. Fischer
Attorney General's Office                       Mutual Savings Bank
221 W. High Street                              1001 W. McCarty, Suite 215
P.O. Box 899                                    Jefferson City, MO 65101
Jefferson City, MO 65102

Susan B. Cunningham
Kansas City Power & Light Co.
1201 Walnut Street
P.O. Box 418679
Kansas City, MO 64141-9679
<PAGE>
 
                                                                   Attachment A.
                                                                   Page 1 of 6


                     PROCEDURES TO DETERMINE RATE REDUCTION


1.   For each month, the Hourly Electric Load Model (HELM) will be used to
     estimate actual and weather normalized sales by calendar months for the
     following rate sub-classes (Missouri retail only):

     .  residential;
     .  commercial small general service;
     .  industrial small general service;
     .  commercial large general service;
     .  commercial small primary service; and
     .  commercial large primary service.

2.   UE's Corporate Planning Department will utilize the following load research
     data in the HELM model for the specified "Sharing Periods":

            Sharing Period                Load Research Data
     ----------------------------      -----------------------

     July 1, 1995 - June 30, 1996       24 months ending:
                                           Sepember 30, 1995
     July 1, 1996 - June 30, 1997       24 months ending:
                                           September 30, 1995
     July 1, 1997 - June 30, 1998       24 months ending:
                                           September 30, 1996

3.   For the 12 months ended June 30, 1996 Sharing Period, UE's Corporate
     Planning Department will use its current version of the HELM model. To the
     extent that this version is modified during the "Sharing Periods" ending
     June 30, 1997 and June 30, 1998, all signatories to the Stipulation And
     Agreement in Case No. EM-96-149 will be provided in writing the following
     information within 30 days of the effective date of the change to the model
     as determined by UE's Corporate Planning Department:

     .  description of the changes made;
     .  reasons for the changes; and
<PAGE>
 
                                                                   Attachment A.
                                                                   Page 2 of 6
     .  effective date of the changes to the HELM model for purposes of
        calculating the Annual Weather-Normalized Credit.

     For purposes of calculating the Annual Weather-Normalized Credit, all
     changes to the HELM model, as well as other changes to the data and
     assumptions utilized in the HELM model, will be incorporated prospectively
     from the effective date of the change.

4.   Monthly, the difference between normal weather energy sales and actual
     energy sales by rate sub-class, as determined in Step 1 above, will be
     calculated (Missouri only). These amounts represent the impact of weather
     on sales during that period.

5.   In order to determine the impact that deviations from normal weather had on
     revenues, the amounts calculated in Step 4 will be multiplied by the rate
     components specified below of the Missouri electric rates for that rate
     class in effect for service on the first day of the month. The summer rate
     will be applied in June through September.

     The winter rate will be applied in October through May. The sum of the rate
     sub-class revenue adjustments will be the total weather adjustment to
     revenues for that month. The following rate components will be used for
     each rate class:

     <TABLE>
     <CAPTION>
 
     Rate Class                                Rate Component
     ----------------------------  ------------------------------------
     <S>                           <C> 
     Residential                   Summer  1(M) Energy Charge - All kWh
 
                                   Winter  1(M) Energy Charge -
                                           Initial Block (first 750
                                           kWh)
 
     Small General Service         Summer  2(M) Energy Charge - All
                                           kWh

                                   Winter  2(M) Energy Charge - Base 
                                           Use

</TABLE> 
<PAGE>
 
                                                                   Attachment A.
                                                                   Page 3 of 6

<TABLE> 
<S>                                   <C>     <C> 
      . Large General Service         Summer  3(M) Energy Charge - Over
                                              350 kWh per kW
 
                                      Winter  3(M) Energy Charge - Over
                                              350 kWh per kW
 
     .  Small Primary Service         Summer  4(M) Energy Charge - Over
                                              350 kWh per kW
 
                                      Winter  4(M) Energy Charge - Over
                                              350 kWh per kW
 
     .  Large Primary Service         Summer  11(M) Energy Charge - All
                                              kWh

                                      Winter  11(M) Energy Charge - All kWh
</TABLE> 


     Exhibit I hereto reflects the specific rates expected to be utilized to
     perform this calculation.

6.   In order to determine the impact that weather had on fuel costs, the amount
     calculated in Step 4 will first be factored up for line losses and then
     will be multiplied by the average cost of fuel per kWh. The average cost of
     fuel will be calculated utilizing information from UE's Monthly Financial
     and Statistical Report (F&S). Total fossil fuel cost (from F&S Schedule C6-
     1 - Total Electric Fuel Burned Less Nuclear and Handling Costs) plus the
     cost of purchased power (F&S Schedule C4-1) will represent total fuel
     costs. Total generation (from F&S Schedule C5-2 - Total Steam Generation
     Plus Total Combustion Turbine and Diesel Generation) plus the purchased
     power (F&S Schedule C4-2, including Regulating Energy) will represent total
     output (expressed in kWhs). The total fuel cost divided by total output
     will equate to the average fuel cost per kWh. To the extent that the
     referenced schedules change in format or content, comparable reports will
     be developed, maintained and supplied to the appropriate signatories.
<PAGE>
 
                                                                   Attachment A.
                                                                   Page 4 of 6


7.   Steps 1, 4, 5 and 6 will be performed monthly during the Sharing Period.
     The sum of the twelve months will represent the "adjustment to revenues and
     fuel costs."

8.   The "adjustment to revenues and fuel costs" calculated in Step 7 will be
     added to or deducted from revenues and fuel costs used  in determining the
     "actual" credit under the Stipulation And Agreement in Case No. ER-95-411
     for the particular Sharing Period.  These adjusted revenues and fuel costs
     will be used to calculate the Annual Weather-Normalized Credit for the
     sharing period using the procedures used to calculate the "actual" credit.


9.   If the "actual" credit calculated under the Stipulation And Agreement in
     Case No. ER-95-411 for any Sharing Period is zero, the Annual Weather-
     Normalized Credit will be zero for that Sharing Period.

10.  The Annual Weather-Normalized Credit cannot be a "negative"  amount for any
     Sharing Period.  Under this circumstance, the Annual Weather-Normalized
     Credit for that Sharing Period will be zero.

11.  The Rate Reduction will be calculated as the average of the Annual Weather-
     Normalized Credits for each of the three sharing periods.  (The divisor
     will always be three, even if one or more of the Annual Weather-Normalized
     Credits is zero).
<PAGE>
 
                                                                   Attachment A.
                                                                   Page 5 of 6
Exhibit I
Page 1 of 2

                            MISSOURI ELECTRIC RATES
                           EFFECTIVE AUGUST 1, 1995

                          Rate Class             Rate per kWh
                 ---------------------------     ------------

             .   Residential - Summer               8.271c
             .   Residential - Winter               5.998c
             .   Small General Service - Summer     8.22c
             .   Small General Service - Winter     6.13c
             .   Large General Service - Summer     4.09c
             .   Large General Service - Winter     2.96c
             .   Small Primary Service - Summer     3.76c
             .   Small Primary Service - Winter     2.73c
             .   Large Primary Service - Summer     2.69c
             .   Large Primary Service - Winter     2.38c
<PAGE>
 
                                                                    Attachment A
                                                                    Page 6 of 6
 
Exhibit I
Page 2 of 2
                            MISSOURI ELECTRIC RATES
                        (TO BE USED FOR JULY 1995 ONLY)
 
                        Rate Class              Rate per kWh
                --------------------------      ------------
 
            .   Residential - Summer               8.439c
              
            .   Small General Service - Summer     8.38c
              
            .   Large General Service - Summer     4.17c
              
            .   Small Primary Service - Summer     3.83c
              
            .   Large Primary Service - Summer     2.74c
<PAGE>
 
                                                                   Attachment B.
                                                                   Page 1 of 3

            PROCEDURES FOR SHARING CREDITS FROM THE NEW THREE-YEAR
                   EXPERIMENTAL ALTERNATIVE REGULATION PLAN


A.   Eligibility Requirements for Sharing Credits

     Any Missouri retail electric customer whose account is active as of the
     date of billing during the "credit application period," as defined below in
     B., shall be eligible for a credit.  Customer accounts which are inactive
     as of the date of billing during the "credit application period" are
     ineligible for any credit.

B.   Determination of the Credit Application and Calculation Periods

     The "credit application period" shall be the UE monthly billing period
     during which the credit will be applied to an eligible customer's bill for
     electric service.  The "credit calculation period" will be the twelve UE
     billing months prior to the month before the credits first appear on
     customers' bills.  For example, if the credit first appears on customers'
     bills in the October 1999 billing period, then the credit calculation
     period would be the twelve UE billing months of September 1998 - August
     1999.

C.   Determination of Applicable Credit Period Kilowatt-hours

     The applicable credit calculation period kilowatt-hours for all eligible
     customers shall be the total sales billed by UE to each eligible customer's
     current premises during the entire 12-month credit calculation period, as
     defined above in B., without regard to each customer's occupancy date of
     such premises.

D.   Determination of Per Kilowatt-hour Credit

     The credit per kilowatt-hour will be calculated by dividing the total
     dollar amount to be credited by the total applicable credit calculation
     period kilowatt-hours, as defined in C. above, for all eligible Missouri
     retail accounts.
<PAGE>
 
                                                                   Attachment B.
                                                                   Page 2 of 3

E.   Determination of Individual Customer Credit

     Each individual active customer's credit will be calculated by multiplying
     the per kilowatt-hour credit, as defined in D. above, by the eligible
     customer's applicable credit calculation period kilowatt-hours as defined
     in C. above.

F.   Treatment of Any Difference Between the Actual Amount Credited to Customers
     and the Sharing Credits Amount

     1.   If the difference between the actual amount credited to eligible
          customers and the sharing credits amount is less than $1 million, this
          credit amount will be carried over and be an adjustment to eligible
          customers' share of earnings in the subsequent sharing period.

     2.   If the difference between the actual amount credited to eligible
          customers and the sharing credits amount is $1 million or greater, an
          additional credit will be made as soon as reasonably possible for an
          under-credit. If an over-credit of $1 million or more is made, the
          over-credit will be treated as in the paragraph immediately above.

G.   Treatment of Sharing Credits

     1.   If the calculation of UE's return on common equity indicates that
          sharing credits are to be granted and the amount for the sharing
          period is $1 million or greater, or the amount for the sharing period
          plus any amount carried over from a prior sharing period is $1 million
          or greater, then credits will be made to eligible customers for that
          sharing period.

     2.   If the calculation of UE's return on common equity indicates that
          sharing credits are to be granted, but the amount is less than $1
          million or the amount for the sharing period plus any amount carried
          over from a prior sharing period is less than $1 million, said amount
          will be carried over and be an adjustment to eligible customers' share
          of earnings in the subsequent sharing period.
<PAGE>
 
                                                                   Attachment B.
                                                                   Page 3 of 3

     3.   The signatories to this Stipulation And Agreement will determine the
          disposition of any accumulated balance of credits that is less than $1
          million at the end of the third year of the New Plan.

     4.   Any accumulated balance of credits that is $1 million or greater at
          the end of the third year of the New Plan will result in credits to
          customers' bills.
<PAGE>
 
                                                                   Attachment C.
                                                                   Page 1 of 9

                           RECONCILIATION PROCEDURE

1.   The period used in determining sharing will be a year ending June 30.  An
     earnings report will be filed with the Commission and submitted to all
     parties to this agreement by one hundred and five (105) days after the end
     of each year of the New Experimental Alternative Regulation Plan ("the New
     Plan").  The earnings report will be in accordance with this Attachment C
     and Schedule 1 hereto.

2.   The earnings report will reflect the following:

     a.   UE's Missouri electric net operating income and common equity return
          (ROE) will be based upon year ending June 30 operating revenues,
          expenses and average rate base.

          The Missouri electric allocation factors shown in Schedule 1 hereto
          will be calculated and applied consistent with past UE rate
          proceedings and will be updated for each Sharing Period of the New
          Plan.

          Any sale of emission allowances shall be reflected above-the-line in
          the ROE calculation.

     b.   The annual depreciation expense will be based upon the depreciation
          rates in effect at December 31, 1994.

     c.   The Company will make the following income statement adjustments which
          have been traditionally made in UE rate proceedings:

          .    Normalize the expense of refueling the Callaway nuclear plant to
               provide an annual expense level.

          .    Synchronize gross receipts tax expense with amounts included in
               revenues.

          .    Eliminate $250,000 of goodwill advertising.

          .    Include interest on customer deposits and the residential
               insulation programs.
<PAGE>
 
                                                                   Attachment C.
                                                                   Page 2 of 9



          .    Exclude the cost, net of refunds, for nuclear replacement power
               insurance.

          .    Eliminate differences between the provision for and the actual
               bad debt charges.

          .    Exclude lobbying expenses.  (Edison Electric Institute dues.)

          .    Allocate system revenues, including revenues from interruptible
               sales, consistent with the treatment in Case No. EC-87-114.

     d.   Net operating income will be normalized for the effect of any prior
          year "sharing" credits.

     e.   Net operating income will reflect changes in the recovery of nuclear
          decommissioning costs ordered by the Commission as provided in Section
          7.i. of this Stipulation And Agreement.

     f.   The earnings report will utilize:

          .    The direct assignment, as ordered in Case No. EC-87-114, of the
               Callaway plant costs disallowed in Case No. ER-85-160.

          .    Staff's rate base offsets for income tax and interest expense, as
               calculated in past UE rate proceedings.

          .    Coal inventory equal to a 75-day supply and a 13-month average
               for all other non-nuclear fuel, materials and supplies, and
               prepayments.

          .    Nuclear fuel inventory reflecting an 18-month average of the
               unspent fuel in the reactor core.

          .    Staff's traditional calculation of the interest deduction for
               income taxes.
<PAGE>
 
                                                                   Attachment C.
                                                                   Page 3 of 9


          .    A cash working capital rate base offset of $24 million.

          .    Average the beginning and ending period capital structures and
               embedded costs for determining the average weighted costs of debt
               and preferred stock.  (See also attached Schedule 1, page 1.)

          .    Staff's traditional calculation of income tax (refer to the
               income tax calculation in Case No. EC-87-114).

          .    Staff's  position regarding the calculation of Pension and OPEB
               expense as exemplified in the  St. Louis County Water Company
               rate case, Case No. WR-95-145.

          .    The amortization of transaction and transition costs as set forth
               in Section 4 of the Stipulation and Agreement in Case No. EM-96-
               149.

     g.   The earnings level upon which sharing is based are those described in
          items 2.a. through 2.f. above.  UE/Staff/OPC reserve the right to
          petition the Commission for resolution of disputed issues relating to
          the operation or implementation of this Plan.
<PAGE>
 
                                                                   Attachment C.
                                                                   Page 4 of 9
Schedule 1
Page 1 of 6


                            UNION ELECTRIC COMPANY
                             CAPITAL STRUCTURE AND
                      EMBEDDED COST OF DEBT AND PREFERRED
<TABLE>
<CAPTION>
 
 
BEGINNING OF SHARING PERIOD
                                      (i)         (ii)              (iii)          (iv)
                                   Capital Structure               Embedded      Wgtd Avg
                                   -----------------
                                    (Dollars)      %                 Cost          Cost
                                   ----------   ------             --------      --------
<S>                                <C>                             <C>           <C> 
Common Stock Equity*                                                 N/A           N/A
Preferred Stock                                                                  col. (ii)
Long-Term Debt                                                                     times
Short-Term Debt                  (if applicable)                                 col. (iii)
                                 --------------
  Total Capitalization
                                                                                 -------------
Return Portion Related to Debt and Preferred                                     Sum col. (iv)
 
END OF SHARING PERIOD
                                      (v)         (vi)              (vii)         (viii)
                                   Capital Structure               Embedded      Wgtd Avg
                                   -----------------
                                    (Dollars)      %                 Cost          Cost
                                   ----------   ------             --------      --------
Common Stock Equity*                                                 N/A           N/A
Preferred Stock                                                                 col. (vi)
Long-Term Debt                                                                     times
Short-Term Debt                  (if applicable)                                col. (vii)
                                 --------------
  Total Capitalization                                                                     Ret
                                                                                -----------

</TABLE> 
                                                     
Portion 
Related to Debt and Preferred  Sum col.(viii)

Return Portion Related to Debt and Preferred           
 Average Beginning and End of Sharing Period           [_____________]

Average Common Stock Equity*                           
 Beginning and End of Sharing Period (%)               [_____________]
<PAGE>
 
                                                                   Attachment C.
                                                                   Page 5 of 9
Schedule 1
Page 2 of 6


*  Since common dividends payable at the end of a quarter and preferred
dividends payable during the subsequent quarter are removed from common equity
in their entirety during the first month of every quarter, the balance for
common stock equity for the end of the first or second month in each quarter (if
used as the beginning or end of the sharing period) should be adjusted from
actual book value. The balance for the end of the first month in the quarter
should be adjusted by adding back two-thirds of the quarterly preferred and
common dividend. The balance for the end of the second month in the quarter
should be adjusted by adding back one-third of the quarterly preferred and
common dividend.
<PAGE>
 
                                                                   Attachment C.
                                                                   Page 6 of 9
Schedule 1                                                         
Page 3 of 6                                                        
                                                                   
                            UNION ELECTRIC COMPANY
                         12 MONTHS ENDED XX / XX / XX
<TABLE>                                                            
<CAPTION>                                                          
                                                          TOTAL           MISSOURI            
                                                         ELECTRIC      JURISDICTIONAL         
                                                      -------------    --------------         
<S>                                                  <C>               <C>                     
Plant in Service                                     $                 $
Reserve for Depreciation                            
                                                     ----------------  --------------
Net Plant

Add:
 Fuel and Materials & Supplies
 Cash Working Capital                                                               -
 Prepayments
 
Less:
 Income Tax Offset (Staff Method)
 Interest Expense Offset (Staff Method)
 Customer Advances
 Customer Deposits
 
  Accumulated Deferred Income Taxes:
   Account 190
   Account 282
                                                     ----------------  --------------
(A) Total Rate Base                                  $                 $
                               
                               
(B) Net Operating Income                             $                 $ 
 
(C) Return on Rate Base ((B)/(A))                                   %               %

(D) Return Portion Related to Debt & Preferred                      %               %
 
(E) Return Portion Related to
      Common Equity ((C)-(D))                                       %               %
 
(F) Equity Percentage of Capital Structure                          %               %
 
(G) Achieved Cost of Common Equity ((E)/(F))                        %               %
</TABLE> 
<PAGE>
 
                                                                   Attachment C.
                                                                   Page 7 of 9
Schedule 1                                                                   
Page 4 of 6                                                                  
                                                                             
                            UNION ELECTRIC COMPANY
                         12 MONTHS ENDED XX / XX / XX                        
<TABLE>                                                                      
<CAPTION>                                                                    
                                                          TOTAL           MISSOURI            
                                                         ELECTRIC      JURISDICTIONAL         
                                                      -------------    --------------         
<S>                                                  <C>               <C>                     
Operating Revenues                                   $                 $

Operating & Maintenance Expenses:
 Production:
   Fixed Allocation
   Variable Allocation
   Directly Assigned                                 
                                                     --------------    -------------- 
 Total Production Expenses

 Transmission Expenses (Fixed)

 Distribution Expenses (Distr. Plant)

 Customer Accounting Expenses (Direct)

 Customer Serv. & Info. Expenses (Direct)

 Sales Expenses (Direct)

 Administrative & General Expenses:
   Directly Assigned
   Labor Allocation                   
                                                     --------------    -------------- 
 Total Administrative & General Expenses  
                                                     --------------    -------------- 
Total Operating & Maintenance Expenses 
                                                     --------------    -------------- 
Depreciation & Amortization Expense:
 Fixed Allocation
 Labor Allocation
 Directly Assigned                     
                                                     --------------    -------------- 
Total Depreciation & Amortization Expense 
                                                     --------------    -------------- 
Taxes Other than Income Taxes:
 Fixed Allocation
 Variable Allocation
 Labor Allocation
 Directly Assigned                    
                                                     --------------    -------------- 
Total Taxes Other than Income Taxes   
                                                     --------------    -------------- 
Income Taxes:
 Federal Income Taxes
 Environmental Tax (Net Plant)
 Missouri State Income Tax
 Other States' Income Taxes     
                                                     --------------    -------------- 
Total Income Taxes    
                                                     --------------    -------------- 
Net Operating Income                                 $                 $
</TABLE> 
<PAGE>
 
                                                                   Attachment C.
                                                                   Page 8 of 9
Schedule 1
Page 5 of 6


                    CALCULATION OF CUSTOMER SHARING CREDITS
                          FOR UNION ELECTRIC COMPANY


<TABLE> 
<CAPTION> 
                                                                                           Customer
    Earned Return on Common Stock Equity Scenarios                                     Sharing Credits
    -------------------------------------------------                                  ---------------
<S>                                                                                    <C> 
A.  If Earned Return on Common Stock Equity is (less than) 10.000%, then:

    no sharing occurs and Union Electric Company has the option
    to file a rate increase case before the Missouri Public Service
    Commission.

B.  If Earned Return on Common Stock Equity is = to or (greater than) 10.00%
    and is (less than) or = to 12.61%, then:                                                      $ XX

    no sharing occurs.

C.  If Earned Return on Common Stock Equity is (greater than) 12.61% and is
    (less than) or = to 14.00%, then:                                                             $ XX

    that portion of Earned Return on Common Stock Equity between
    12.61% and 14.00% is shared with 50% being retained by Union
    Electric Company and 50% being credited to Union Electric
    Company's Missouri retail electric customers.

    If [G] (greater than) 12.61% and
    (less than) or = to 14.00%, then:  [([G] - 12.61%) * 50% * ([A] * [F])]

    If [G] (greater than) 14.00%, then:  [(14.00% - 12.61%) * 50% * ([A] * [F])]

D.  If Earned Return on Common Stock Equity is (less than) 14.00% 
    and is (less than) or = to 16.00%, then:                                                      $ XX

    that portion of Earned Return on Common Stock Equity between
    14.00% and 16.00%, along with the 50% portion addressed above,
    is shared with 10% being retained by Union Electric Company
    and 90% being credited to Union Electric Company's Missouri
    retail electric customers.

    If [G] (greater than) 14.00% and
    (less than) or = to 16.00%, then:  [([G] - 14.00%) * 90% * ([A] * [F])]

    If [G] (less than) 16.00%, then:  [(16.00% - 14.00%) * 90% * ([A] * [F])]

E.  If Earned Return on Common Stock Equity is (greater than) 16.00%, then:                       $ XX

    that portion of Earned Return on Common Stock Equity above
    16.00%, along with the 50% and 90% portions addressed above, is
    credited to Union Electric Company's Missouri retail electric customers.

    If [G] (greater than) 16.00%, then:  [[G] - 16.00%) * 100% * ([A] * [F])]
                                                                                        --------------
    CUSTOMER SHARING CREDITS                                                                      $ XX

    Associated Income Tax Expense Reduction                                                       $ XX
    {Customer Sharing Credits * [(1/(1 - Effective Tax Rate)) - 1]}
    Effective tax rate was 38.3886% as of 6/30/94.

    TOTAL CUSTOMER SHARING CREDITS                                                                $ XX
</TABLE> 
<PAGE>
 
                                                                   Attachment C.
                                                                   Page 9 of 9
Schedule 1
Page 6 of 6


                            UNION ELECTRIC COMPANY
                         12 MONTHS ENDED XX / XX / XX


                              ALLOCATION FACTORS
                              ------------------
<TABLE>
<CAPTION>
 
 
                             TOTAL         MISSOURI
                            ELECTRIC     JURISDICTIONAL
                          ------------  ---------------
<S>                       <C>           <C>
 
Fixed                       100.00%            %
Variable                    100.00%            %
Nuclear                     100.00%            %
Distribution                100.00%            %
Mo. Distribution Plant      100.00%            %
Labor                       100.00%            %
Net Plant                   100.00%            %
Operating Revenues          100.00%            %
Operating Expenses          100.00%            %
</TABLE>
<PAGE>
 
                                                                   Attachment D.
                                                                    Page 1 of 8


                     CONTINGENT JURISDICTIONAL STIPULATION


1.0  APPLICABILITY
     -------------

     1.1   Principles stated in this Contingent Jurisdictional Stipulation
           ("Jurisdictional Stipulation") shall govern the situations described
           in Sections 8.h. and 8.i. of the Stipulation And Agreement.

     1.2   Changes to this Jurisdictional Stipulation may be proposed from time-
           to-time by Union Electric Company ("UE" or "Company"), the Commission
           Staff or the OPC, subject to the approval of the Commission;
           provided, however, that UE, the Staff and the OPC shall meet and
           discuss any such proposed changes prior to the submission of such
           changes to the Commission by UE, the Commission Staff or the OPC.

2.0  DEFINITIONS
     -----------

     When used in this Jurisdictional Stipulation, the following terms shall
     have the respective meanings set forth below:

     2.1  "Affiliate" means an Entity that is UE's Holding Company, a Subsidiary
           of UE, a Subsidiary of UE's Holding Company (other than UE), or other
           subsidiary within the Holding Company organization.

     2.2  "Affiliate Contract" means an Affiliate Operating Contract, an
           Affiliate Sales Contract, an Affiliate Surety Contract, a Section 205
           Contract, a Service Agreement or an amendment to any such contract.

     2.3  "Affiliate Operating Contract" means a contract, other than a Section
           205 Contract, between UE and one or more of its Affiliates providing
           for the operation of any part of UE's generating, transmission and/or
           distribution facilities by such Affiliate(s).

     2.4   "Affiliate Sales Contract" means a contract, other than an Affiliate
           Operating Contract or a Section 205 Contract, between UE and one or
           more of its Affiliates involving the purchase of Assets, Goods or
           Services.
<PAGE>
 
                                                                   Attachment D.
                                                                    Page 2 of 8

     2.5   "Affiliate Surety Contract" means a contract between UE and one or
           more of its Affiliates involving the assumption by UE of any
           liability as a guarantor, endorser, surety, or otherwise in respect
           of any security or contract of an Affiliate.

     2.6   "Assets" means any land, plant, equipment, franchises, licenses, or
           other right to use assets.

     2.7   "Commission" means the Missouri Public Service Commission or any
           successor governmental agency.

     2.8   "Commission Staff" or "Staff" means the staff of the Missouri Public
           Service Commission.

     2.9   "Entity" means a corporation or a natural person.

     2.10  "FERC" means the Federal Energy Regulatory Commission, or any
           successor governmental commission.

     2.11  "Goods" means any goods, inventory, materials, supplies, appliances,
           or similar property (except electric energy and capacity).

     2.12  "Non-Utility Affiliate" means an Affiliate which is neither a public
           utility nor a Utility Service Company.

     2.13  "OPC" means the Office of the Public Counsel.

     2.14  "Review Period" means a period of ninety (90) consecutive calendar
           days commencing on the first day immediately following the date that
           UE, Ameren Corporation or Ameren Services Company submits an
           Affiliate Contract to the Commission for the Commission Staff's
           review.  Any part of the Review Period for a particular Affiliate
           Contract may be waived by agreement of UE, the Commission Staff and
           the OPC.

     2.15  "SEC" means the United States Securities and Exchange Commission, or
           any successor governmental agency.

     2.16  "Section 205 Contract" means an interconnection, interchange,
           pooling, operating, transmission, power sale or ancillary power
           services contract or similar
<PAGE>
 
                                                                   Attachment D.
                                                                    Page 3 of 8


           entered into between UE and an Affiliate and subject to regulation by
           the FERC pursuant to (S) 205 of the Federal Power Act, 15 U.S.C. (S)
           824d, or any successor statute.

     2.17  "Service Agreement" means the agreement entered into between UE,
           CIPSCO and Ameren Services Company under which Services are provided
           by Ameren Services Company to UE and CIPSCO.

     2.18  "Services" means the performance of activities having value to one
           party, such as managerial, financial, accounting, legal, engineering,
           construction, purchasing, marketing, auditing, statistical,
           advertising, publicity, tax, research, and other similar services.

     2.19  "Subsidiary" means any corporation 10 percent or more of whose voting
           capital stock is controlled by another Entity; Subsidiaries of UE are
           those corporations in which UE owns directly or indirectly (or in
           combination with UE's other Affiliates) 10 percent or more of such
           corporation's voting capital stock.

     2.20  "UE's Holding Company" means Ameren Corporation or its successor in
           interest.

     2.21  "Utility Affiliate" means an Affiliate of UE which is also a public
           utility.

     2.22  "Utility Service Company" means an Affiliate whose primary business
           purpose is to provide administrative and general or operating
           services to UE and Utility Affiliate(s).

3.0  AFFILIATE CONTRACTS REQUIRED TO BE FILED WITH THE SEC
     -----------------------------------------------------

     The following will apply to Affiliate Contracts that are required to be
     filed with the SEC.

     3.1   Prior to filing any such Affiliate Contract with the SEC or the
           Commission, UE will submit to the Commission Staff, the OPC and
           appropriate parties requesting a copy, a copy of the Affiliate
           Contract which it proposes to file with the SEC and the Commission.
<PAGE>
 
                                                                   Attachment D.
                                                                    Page 4 of 8


           3.1.1   If the Commission Staff clears the contract for filing, or
                   does not object to it, and no objections from affected
                   parties are submitted to UE (with a copy to the Commission
                   Staff) during the Review Period for such contract, UE may
                   file such contract with the SEC and the Commission.  The
                   contract will become effective upon the receipt of all
                   necessary regulatory authorizations and will continue in
                   effect until it is terminated pursuant to its terms or is
                   amended or superseded, subject to the receipt of all
                   necessary regulatory authorizations.

           3.1.2   If during or upon the expiration of the Review Period for
                   such contract, the Commission Staff recommends that the
                   Commission reject, disapprove or establish a proceeding to
                   review such contract, or if an objection(s) is submitted to
                   UE (with a copy to the Commission Staff) by an affected party
                   (or parties), UE may file the contract with the Commission,
                   but shall not file the contract with the SEC until at least
                   (30) days after the date that it is filed with the
                   Commission; provided, that both such filings shall disclose
                   the Commission Staff's recommendation or the objection(s)
                   regarding the contract; provided, further, that if the
                   Commission, within twenty (20) days after the contract is
                   filed, institutes a proceeding to review such contract, UE
                   shall not file the contract with the SEC unless and until UE
                   receives a Commission Order which resolves issues raised with
                   regard to the contract and which does not reject or
                   disapprove the contract. The contract will become effective
                   upon the receipt of all necessary regulatory authorizations
                   and will continue in effect until it is terminated pursuant
                   to its terms or is amended or superseded, subject to the
                   receipt of all necessary authorizations.

     3.2   After the Affiliate Contract has been filed with the Commission, the
           Commission may in accordance with Missouri law reject or disapprove
           the contract, and upon such rejection or disapproval:
<PAGE>
 
                                                                   Attachment D.
                                                                    Page 5 of 8


           3.2.1   If such contract has not yet been accepted or approved by the
                   SEC, UE will, as soon as possible, file to seek to withdraw
                   its filing requesting SEC acceptance or approval of such
                   contract; or

           3.2.2   If such contract has been accepted or approved by the SEC and
                   none of the other contracting parties are Utility Affiliates
                   subject to any other state utility regulatory commission's
                   jurisdiction, UE will:

                   a.  terminate such contract according to its terms; or

                   b.  at its sole option, take such steps as are necessary to
                       cause such contract to be amended in order to remedy the
                       Commission's adverse findings with respect to such
                       contract; UE will refile such amended contract with both
                       the Commission and the SEC; such amendment will become
                       effective only upon the receipt of all necessary
                       regulatory authorizations, and the previous contract (to
                       the extent already in effect) will remain in effect until
                       such authorizations are received; if the SEC does not
                       finally accept or approve such amendment within 1 year
                       from the date of UE's filing of such amendment with the
                       SEC, UE will, upon request of the Commission, terminate
                       the contract according to its terms.

           3.2.3   If such contract has been accepted or approved by the SEC and
                   one or more of the other contracting parties are Utility
                   Affiliates subject to another state utility regulatory
                   commission's jurisdiction, UE will make a good faith effort
                   to terminate, amend or modify such contract in a manner which
                   remedies the Commission's adverse findings with respect to
                   such contract. UE will request to meet with representatives
                   from the affected state commissions and make a good faith
                   attempt to resolve any differences in their respective
                   interests regarding the subject
<PAGE>
 
                                                                   Attachment D.
                                                                    Page 6 of 8


                   contract. If agreement can be reached to terminate, amend, or
                   modify the contract in a manner satisfactory to the
                   contracting parties and the representatives of each state
                   commission, UE shall file such amended contract with the
                   Commission and the SEC under the procedure set forth in this
                   Section 3. If no agreement can be reached satisfactory to
                   each contracting party and to each affected state commission,
                   after good faith negotiations, UE has no further obligations
                   under this Jurisdictional Stipulation. Nothing herein
                   affects, modifies or alters in any way the rights and duties
                   of the Commission under applicable state and federal law.

4.0  AFFILIATE CONTRACTS REQUIRED TO BE FILED WITH THE FERC
     ------------------------------------------------------

     The following will apply to Affiliate Contracts that are required to be
     filed with the FERC.

     4.1   Prior to filing any Affiliate Contract with the FERC or the
           Commission, UE will submit to the Commission Staff, the OPC and
           appropriate parties requesting a copy, a copy of the Affiliate
           Contract which it proposes to file with the FERC and the Commission.

           4.1.1   If the Commission Staff clears the contract for filing, or
                   does not object thereto, and no objections from affected
                   parties are submitted to UE (with a copy to the Commission
                   Staff) during the Review Period for such contract, UE may
                   file such contract with the FERC and the Commission.  The
                   contract will become effective upon the receipt of all
                   necessary regulatory authorizations and will continue in
                   effect until it is terminated pursuant to its terms or is
                   amended or superseded, subject to the receipt of all
                   necessary regulatory authorizations.

           4.1.2   If during or upon the expiration of the Review Period for
                   such contract, the Commission Staff recommends that the
                   Commission reject, disapprove or establish a proceeding to
                   review such contract, or if any objection(s) is submitted to
                   UE (with a 
<PAGE>
 
                                                                   Attachment D.
                                                                    Page 7 of 8


                   copy to the Commission Staff) by an affected party (or
                   parties), UE may file the contract with the Commission, but
                   shall not file the contract with the FERC until at least
                   thirty (30) days after the date that it is filed with the
                   Commission; provided, that both such filings shall disclose
                   the Commission Staff's recommendation or the objection(s)
                   regarding the contract; provided, further, that if the
                   Commission, within twenty (20) days after the contract is
                   filed, institutes a proceeding to review such contract, UE
                   shall not file the contract with the FERC unless and until UE
                   receives a Commission Order which resolves issues raised with
                   regard to the contract and which does not reject or
                   disapprove the contract. The contract will become effective
                   upon the receipt of all necessary regulatory authorizations
                   and will continue in effect until it is terminated pursuant
                   to its terms or is amended or superseded, subject to the
                   receipt of all necessary regulatory authorizations.

     4.2   After the Affiliate Contract has been filed with the Commission, the
           Commission may in accordance with Missouri law reject or disapprove
           the contract, and upon such rejection or disapproval:

           4.2.1   If such contract has not yet been accepted or approved by the
                   FERC, UE will, as soon as possible, file to seek to withdraw
                   its filing requesting FERC acceptance or approval of such
                   contract; or

           4.2.2   If such contract has been accepted or approved by the FERC
                   and none of the other contracting parties are Utility
                   Affiliates subject to any other state utility regulatory
                   commission's jurisdiction, UE will:

                   a.  terminate such contract according to its terms; or

                   b.  at its sole option, take such steps as are necessary to
                       cause such contract to be
<PAGE>
 
                                                                   Attachment D.
                                                                    Page 8 of 8

                       amended in order to remedy the Commission's adverse
                       findings with respect to such contract; UE will refile
                       such amended contract with the Commission and the FERC;
                       such amendment will become effective only upon the
                       receipt of all necessary regulatory authorizations, and
                       the previous contract (to the extent already in effect)
                       will continue in effect until such authorizations are
                       received; if the FERC does not finally accept or approve
                       such amendment within one year from the date of UE's
                       filing of such amendment with the FERC, UE will, upon
                       request of the Commission, terminate the contract
                       according to its terms.

           4.2.3   If such contract has been accepted or approved by the FERC
                   and one or more of the other contracting parties are Utility
                   Affiliates subject to another state utility regulatory
                   commission's jurisdiction, UE will make a good faith effort
                   to terminate, amend or modify such contract in a manner which
                   remedies the Commission's adverse findings with respect to
                   such contract. UE will request to meet with representatives
                   from the affected state commissions and make a good faith
                   attempt to resolve any differences in their respective
                   interests regarding the subject contract. If agreement can be
                   reached to terminate, amend, or modify the contract in a
                   manner satisfactory to the contracting parties and the
                   representatives of each state commission, UE shall file such
                   amended contract with the Commission and the FERC under the
                   procedure set forth in this Section 4. If no agreement can be
                   reached satisfactory to each contracting party and each
                   affected state commission, after good faith negotiations, UE
                   has no further obligations under this Jurisdictional
                   Stipulation. Nothing herein affects, modifies or alters in
                   any way the rights and duties of the Commission under
                   applicable state and federal law.

<PAGE>
 
                                                                 Exhibit  D-3.1
                               STATE OF ILLINOIS

                         ILLINOIS COMMERCE COMMISSION


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

IN RE:                                 :
                                       :
CENTRAL ILLINOIS PUBLIC                :  Docket No. 95-0551      
 SERVICE COMPANY                       :                ----
CIPSCO INCORPORATED                    :
UNION ELECTRIC COMPANY                 :
                                       :
JOINT APPLICATION FOR APPROVAL         :
OF MERGER AND REORGANIZATION           :


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


                               JOINT APPLICATION
                                      FOR
                     APPROVAL OF MERGER AND REORGANIZATION
                     -------------------------------------


Joseph H. Raybuck                      David J. Rosso
Steven R. Sullivan                     Christopher W. Flynn
Union Electric Company                 Thomas D. Brooks
1901 Chouteau Blvd.                    Jones, Day, Reavis & Pogue
P.O. Box 149                           77 West Wacker
St. Louis, Missouri 63166              Suite 3500
(314) 554-2976 (voice)                 Chicago, Illinois 60601-1692
(314) 554-2514 (voice)                 (312) 782-3939 (voice)
(314) 554-4014 (fax)                   (312) 782-8585 (fax)



Attorneys for Union                    Attorneys for Central 
Electric Company                       Illinois Public Service   
                                       Company and CIPSCO
                                       Incorporated 


November 6, 1995

<PAGE>
 
                               TABLE OF CONTENTS
                               -----------------
<TABLE>
<CAPTION>

                                                                                                PAGE
                                                                                               -----
<S>   <C>                                                                                      <C>

  I.  EXECUTIVE SUMMARY.........................................................................  2
      A.  Organization of this Application......................................................  2
      B.  Summary of the Transactions Constituting the
          Merger and Reorganization.............................................................  2
      C.  Benefits of the Merger................................................................  4
      D.  Statutory Requirements................................................................  5

 II.  DESCRIPTION OF THE PARTIES................................................................  6
      A.  UE....................................................................................  6
      B.  CIPS..................................................................................  6
      C.  CIPSCO................................................................................  7

III.  THE MERGER SATISFIES THE REQUIREMENTS OF SECTIONS
      7-102 AND 7-204...........................................................................  7
      A.  Introduction: An overview of the regulatory
          standards of Sections 7-102 and 7-204.................................................  7
          1.  Section 7-102.....................................................................  7
          2.  Section 7-204.....................................................................  8
      B.  The Proposed Merger Is Reasonable, Will
          Convenience the Public, and Will Not Impair the
          Provision of Public Utility Service in
          Conformance with the Act.............................................................. 10

 IV.  REQUIREMENTS UNDER SECTION 7-204A FOR APPLICATION FOR
      APPROVAL OF REORGANIZATION................................................................ 11
      A.  Names and corporate relationships of all
          companies which are affiliated interests of the
          public utility on the date the public utility
          applies for reorganization and the name of any
          parent or subsidiary corporation of the public
          utility.  (Section 7-204A(a)(1))...................................................... 11
      B.  A description of how the public utility plans to
          reorganize.  (Section 7-204A(a)(2))................................................... 12
      C.  Copies of the organization documents associated
          with the reorganization, including articles of
          incorporation or amendments to the articles of
          incorporation of all companies including the
          public utility and any affiliated interest
          (Section 7-204A(a)(2)(i))............................................................. 12
      D.  Copies of any filings, including securities
          filings, related to the reorganization made with
          any agency of the state of Illinois or the
          federal government.  (Section 7-204A(a)(2)(ii))....................................... 12
      E.  The costs and fees attributable to the
          reorganization.  (Section 7-204A(a)(3)................................................ 14
      F.  The method by which management, personnel,
          property, income, losses, costs and expenses
          will be allocated between the public utility and
</TABLE>

                                       i
<PAGE>
 
<TABLE>
<S>   <C>                                                                    <C>
          any affiliated interest.  (Section 7-204A(a)(4))................... 14
      G.  A copy of any proposed agreement between the
          public utility and any person with which it will
          be an affiliated interest at the time of the
          application for reorganization.  (Section
          7-204A(a)(5))...................................................... 14
      H.  An identification of all public utility assets or information in
          existence, such as customer lists, which the applicant plans to
          transfer to or permit an affiliated interest to use, which
          identification shall include a description of the proposed terms and
          conditions under which the assets or information will be transferred
          or used. (Section 7-204A(a)(6)).................................... 14
      I.  A copy of a forecast showing the capital
          requirements of the public utility at the time
          of the proposed reorganization.  (Section
          7-204A(a)(7))...................................................... 14
      J.  No public utility may permit the use of any
          public utility employee's services by any
          affiliated interest except by contract or
          arrangement.  No public utility may sell, lease,
          transfer to or exchange with any affiliated
          interest any property except by contract or
          arrangement.  (Section 7-204A(b)).................................. 14

  V.  AMEREN'S RELATIONSHIPS WITH ITS AFFILIATED INTERESTS
      WILL BE CONSISTENT WITH THE PROVISIONS OF THE ACT...................... 15
      A.  Overview of corporate structure.................................... 15
      B.  Transactions involving affiliated interests
          necessary to effect the merger and
          reorganization which require Commission approval
          pursuant to Sections 7-101, and 7-204A(b).......................... 15
      C.  Transactions Between CIPS and Other Ameren
          Affiliates......................................................... 16
          1.  Provision of Services.......................................... 16
          2.  System Support Agreement....................................... 17
          3.  Joint Dispatch Agreement....................................... 18


 VI.  REQUEST FOR APPROVAL OF CAPITALIZATION PURSUANT TO
      SECTION 6-103.......................................................... 18

VII.  CERTIFICATES OF PUBLIC CONVENIENCE AND NECESSITY AND
      FRANCHISES............................................................. 18
      A.  Request, pursuant to Section 8-508, to authorize
          UE to discontinue providing retail electric and
          gas service in the State of Illinois............................... 18
      B.  Request of the Applicants for Transfer of
          Certificates of Public Convenience and Necessity
          Issued Pursuant to Section 8-406................................... 19
      C.  Request for Approval of Transfer of Franchises..................... 20
      D.  Finding Regarding UE's Status Under the Act........................ 20


</TABLE>

                                       ii
<PAGE>
 
<TABLE>
<CAPTION> 
<S>   <C>                                                                    <C>
VIII. CIPS WILL FILE TARIFFS IN ACCORDANCE WITH SECTION
      9-102.................................................................. 21

  IX. REGULATORY TREATMENT OF MERGER-RELATED COSTS AND
      SAVINGS................................................................ 22

   X. DISPOSITION OF NUCLEAR DECOMMISSIONING TRUST........................... 22

  XI. CONCLUSION............................................................. 23
 
</TABLE>

                                      iii
<PAGE>
 
                               STATE OF ILLINOIS

                          ILLINOIS COMMERCE COMMISSION

                                        

IN RE:                                    :
                                          :
UNION ELECTRIC COMPANY                    :
CENTRAL ILLINOIS PUBLIC                   :     Docket No. 95-0551
 SERVICE COMPANY                          :                   ----
CIPSCO INCORPORATED                       :
                                          :
JOINT APPLICATION FOR APPROVAL            :
OF MERGER AND REORGANIZATION              :




                               JOINT APPLICATION
                                      FOR
                     APPROVAL OF MERGER AND REORGANIZATION
                     -------------------------------------


     Union Electric Company ("UE"), a Missouri corporation, and Central Illinois
Public Service Company ("CIPS"), an Illinois corporation, are public utilities
subject to the Illinois Public Utilities Act, 220 ILCS 101, et seq. (the "Act").
Both UE and CIPS provide electric and gas utility service to the public in
Illinois. UE also provides electric and gas utility service in the State of
Missouri. CIPSCO Incorporated ("CIPSCO"), an Illinois corporation, is the
holding company parent of CIPS. UE, CIPS and CIPSCO (collectively "Applicants")
submit this Joint Application pursuant to Sections 7-102, 7-204 and 7-204A of
the Act, 220 ILCS 5/7-102, 5/7-204, 5/7-204A, seeking the Commission's approval
of their merger and reorganization (the "Merger"), and seek further relief
pursuant to Sections 6-103, 7-101, 7-203, 8-406, 8-508, 8-508.1 and 9-201 of the
Act. In support of their Joint Application, Applicants state:

<PAGE>
 
I.   EXECUTIVE SUMMARY

     A.  ORGANIZATION OF THIS APPLICATION

     This Application includes Attachment A and the supporting pre-filed direct
Testimony and Exhibits of Clifford L. Greenwalt, William A. Koertner, Gary L.
Rainwater, Craig D. Nelson, Gilbert W. Moorman, Jerre E. Birdsong, Lynda E.
Marlett, Robert J. Mill, Steven Pettit, Thomas J. Flaherty, Douglas W. Kimmelman
and John C. Guibert. Attachment A is a Cross Index that identifies the specific
information required by the Act and the page references in the Application,
Testimony or Exhibits that satisfy the requirement.

     B.   SUMMARY OF THE TRANSACTIONS CONSTITUTING THE MERGER AND REORGANIZATION

     On August 11, 1995, CIPSCO and UE entered into an Agreement and Plan of
Merger (the "Merger Agreement").  A copy of the Merger Agreement accompanies the
Testimony of William A. Koertner as Exhibit WAK-2.

     The Merger is a strategic alliance between the Applicants, under a common
holding company, Ameren Corporation ("Ameren"), a Missouri corporation.  To
achieve this alliance, UE will merge with Arch Merger, Inc., a Missouri
corporation which is a wholly-owned subsidiary of Ameren.  Ameren will merge
with CIPSCO, so that Ameren will be the parent of UE, CIPS and CIPSCO's other
direct subsidiary, CIPSCO Investment Corporation ("CIC").  A diagram of the
transactions constituting the Merger accompanies this Joint Application as
Appendix B.  The resulting corporate structure is shown on Appendix C.  Ameren
will operate as a

                                       2
<PAGE>
 
registered holding company under the Public Utilities Holding Company Act of
1935 ("PUHCA").

     Under the terms of the Merger, the Illinois operations and facilities
(other than UE's electric generating and transmission assets located in
Illinois) of both UE and CIPS will be owned and operated by CIPS, and the
Missouri operations and facilities of UE, in addition to UE's electric
generating and transmission plant located in Illinois, will be owned and
operated by UE.  CIPS will, of course, remain fully subject to the Commission's
jurisdiction.  UE, which will no longer provide retail utility service in
Illinois, will no longer be a public utility under the Act.

     UE and CIPS will operate their combined electric transmission systems as a
single unit, and will jointly and centrally dispatch their combined electric
generation.  UE and CIPS will also jointly dispatch their gas facilities, to the
extent consistent with the configurations of their systems.

     CIPS will enter into an agreement with UE pursuant to which UE will provide
CIPS with the generation capacity and transmission plant with which to serve
UE's former Illinois service territory (the "System Support Agreement").  The
System Support Agreement is intended to maintain existing UE plant allocations
between Missouri and Illinois and avoid any unintended cost shifting between
jurisdictions as a result of the Merger.

     UE and CIPS also contemplate the integration of many corporate functions in
order to realize efficiencies and

                                       3
<PAGE>
 
economies.  CIPS, UE and their affiliates will enter into arrangements for the
provision of services among affiliates, consistent with the requirements of
PUHCA.  Such arrangements will be subject to the jurisdiction of, and will be
filed with, the Securities and Exchange Commission ("SEC").  A proposed form of
contract providing for such arrangements accompanies the testimony of Mr. Mill.

     C.   BENEFITS OF THE MERGER

     Applicants estimate that the proposed Merger will produce cost savings of
approximately $590 million, in the first 10 years after the Merger is
consummated.  Applicants will incur costs to achieve these savings of
approximately $19 million, plus transaction costs associated with the Merger
itself of approximately $22 million.  In addition, to bring about the Merger, it
was necessary to incur a merger premium of approximately $232 million.

     The cost savings and efficiencies that will be realized as a result of the
Merger will decrease CIPS' and UE's cost of rendering utility services from the
levels each would incur absent the Merger, thus providing a benefit to
customers, shareholders and the local economies that Applicants serve.  Savings
associated with electric joint dispatch and lower gas transportation and
provision costs will be realized by Illinois ratepayers through operation of the
FAC and PGA.  CIPS intends to file an electric base rate case for its existing
service territory no later than 12 months after the closing of the Merger
transaction and perhaps as early as mid-1996.  In that case, CIPS

                                       4
<PAGE>
 
will propose specific treatment of the cost savings resulting from, and the
costs associated with, the Merger.  CIPS is also considering filing a base rate
case for its existing gas service territory; however, since virtually all of the
Merger-related savings associated with gas service will be flowed through the
PGA, such a filing is not necessary to flow savings to existing gas customers.

     CIPS will file tariffs applicable to the former UE Illinois service
territory that will reflect rates essentially equivalent to those charged by UE
at the time of consummation of the Merger.  Those tariffs will include an FAC
and PGA, through which ratepayers will see cost savings associated with electric
joint dispatch and lower gas transportation and provision costs.

     D. STATUTORY REQUIREMENTS

     The Merger requires the Commission's approval under several sections of the
Act, principally 7-102 and 7-204.  As discussed, the Illinois customers of both
UE and CIPS will benefit from the proposed reorganization.  Consequently, as
required by Section 7-102, Applicants have demonstrated that the Merger is
reasonable and will serve the public convenience.  Further, as demonstrated in
this Application and by the accompanying Testimony and Exhibits, the proposed
Merger satisfies the five criteria set forth in Section 7-204 for findings of
fact to enable the Commission to conclude that the reorganization will not
adversely affect CIPS's ability to perform its duties under the Act, with
respect to both its current operations and as successor to UE's Illinois
operations.

                                       5
<PAGE>
 
     In preparing this Application, Applicants have complied with Section 7-
204A, which sets forth the minimum filing requirements for an application for
approval of a reorganization.  In addition to requesting the Commission's
approval of the proposed Merger pursuant to Sections 7-102 and 7-204, this
Application seeks the approval, authorization, consent or waiver of the
Commission, as the case may be, for other matters incident to the proposed
Merger.  These matters include such matters as transfers of assets, transfers of
certificates of public convenience and necessity, disposition of UE's nuclear
decommissioning trust, contracts, cost recovery and filing of tariffs.

II.  DESCRIPTION OF THE PARTIES

     A.   UE

     UE is a Missouri corporation which provides retail electric service to
approximately 1,060,000 customers in the State of Missouri, and 64,000 customers
in the State of Illinois; UE also provides retail natural gas service to
approximately 100,000 customers in Missouri and 18,000 customers in Illinois.
UE is the sole owner of Union Electric Development Corporation, and is a 40 per
cent owner of Electric Energy, Incorporated ("EEInc.").  A description of UE,
its operations and affiliates is contained in the testimony of Gary L. Rainwater
at pages 2-3.

     B.   CIPS

     CIPS is an Illinois corporation which provides electric retail service to
317,000 customers in Illinois, and provides retail natural gas service to
166,000 customers, all in Illinois.  CIPS is a wholly-owned subsidiary of
CIPSCO.  CIPS is a 20 per-

                                       6
<PAGE>
 
cent owner of EEInc.  A description of CIPS and its operations is contained in
the testimony of Clifford L. Greenwalt at pages 2-3.

     C.   CIPSCO

     CIPSCO is an Illinois corporation which is the holding company parent of
CIPS and CIC.  A description of CIPSCO is set forth in the testimony of Mr.
Greenwalt at pages 2-3; a description of the operations of CIC and its
subsidiaries is contained in Mr. Koertner's testimony at pages 16-17.

III. THE MERGER SATISFIES THE REQUIREMENTS OF SECTIONS 7-102 AND 7-204

     A.   INTRODUCTION: AN OVERVIEW OF THE REGULATORY STANDARDS OF SECTIONS 7-
          102 AND 7-204

          1.  SECTION 7-102

     Section 7-102 requires the Commission's approval for a number of
transactions by and between public utilities.  In particular, Section 7-102
provides that:
                                    *  *  *
          (b) No public utility may purchase, lease, or in any other manner
     acquire control, direct or indirect, over the franchises, licenses,
     permits, plants, equipment, business or other property of any other public
     utility;

          (c) No public utility may assign, transfer, lease, mortgage, sell (by
     option or otherwise), or otherwise dispose of or encumber the whole or any
     part of its franchises, licenses, permits, plant, equipment, business, or
     other property, but the consent and approval of the Commission shall not be
     required for the sale, lease, assignment or transfer (1) by any public
     utility of any tangible personal property which is not necessary or useful
     in the performance of its duties to the public, or (2) by any railroad of
     any real or tangible personal property;

          (d) No public utility may by any means, direct or indirect, merge or
     consolidate its franchises, licenses, permits, plants, equipment, business
     or other property with that of any other public utility;

                                    *  *  *

                                       7
<PAGE>
 
     220 ILCS 5/7-102(b), (c), (d).

     Under Section 7-102, the Commission must find that the proposed Merger is
reasonable "and that the public will be convenienced thereby."  The Commission
may make such a finding without a hearing.  In Iowa-Illinois Gas and Electric
Co., Docket 94-0439 ("MidAmerican"), the Commission identified the factors it
will consider in assessing whether the public convenience would be served:

          "[P]ublic convenience" must be read in the context of the specific
          purposes of the Act, namely to provide the public with efficient
          utility service at a reasonable cost.  Our supreme court has stated
          that the public convenience factor, when read in the context of the
          Act, includes such factors as costs to customers, simplification of
          utility service, operating costs, facilities planning and proximity of
          service territories (Illinois Power Co. v. Illinois Commerce
          Commission (1986), 111 Ill.2d 505, 96 Ill. Dec. 50, 490 N.E.2d 1255)

          2.  SECTION 7-204

     Section 7-204 of the Act requires the Commission's approval of any
reorganization. The term "reorganization" is defined as "any transaction which,
regardless of the means by which it is accomplished, results in a change in the
ownership of a majority of the voting capital stock of an Illinois public
utility; or the ownership or control of any entity which owns or controls a
majority of the voting capital stock of a public utility." 220 ILCS 5/7-204.
Section 7-204 further provides that the "Commission shall not approve any
proposed reorganization if the Commission finds, after notice and hearing, that
the reorganization will adversely effect the utility's ability to

                                       8
<PAGE>
 
perform its duties under this Act."  Id.  Thus, the Commission should approve
the Merger if there is no adverse effect on the utility's ability to perform its
duties under the Act.  Furthermore, to protect the interests of the public
utility and its customers, the Commission, in approving the proposed
reorganization, may impose such terms, conditions or requirements as are
necessary.

     Under Section 7-204, the Commission must find that:

          1.  the proposed reorganization will not diminish the utility's
     ability to provide adequate, reliable, efficient, safe and least-cost
     public utility service;

          2.  the proposed reorganization will not result in the unjustified
     subsidization of non-utility activities by the utility or its customers;

          3.  costs and facilities are fairly and reasonably allocated between
     utility and non-utility activities in such a manner that the Commission may
     identify those costs and facilities which are properly included by the
     utility for ratemaking purposes;

          4.  the proposed reorganization will not significantly impair the
     utility's ability to raise necessary capital on reasonable terms or to
     maintain a reasonable capital structure; and

          5.  the utility will remain subject to all applicable laws,
     regulations, rules, decisions and policies governing the regulation of
     Illinois public utilities.

                                       9
<PAGE>
 
     B.   THE PROPOSED MERGER IS REASONABLE, WILL CONVENIENCE THE PUBLIC, AND
          WILL NOT IMPAIR THE PROVISION OF PUBLIC UTILITY SERVICE IN CONFORMANCE
          WITH THE ACT

     As discussed in the testimony of Mr. Koertner and Mr. Flaherty, the Merger
discussed herein is expected to produce savings of approximately $590 million
over the next 10 years, with no diminution in the quality of service to
customers.

     That the Merger is reasonable is also demonstrated by the accompanying
evidence, which provides ample support for the findings which the Commission
must make under Section 7-204:

          1.   The proposed reorganization will not diminish the utility's
     ability to provide adequate, reliable, efficient, safe and least-cost
     public service. (Section 7-204(a))
               Refer to the Testimony of William A. Koertner at pages 14-15,
               Gilbert W. Moorman at pages 6-7 and Steven Pettit at page 15.
          2.   The proposed reorganization will not result in the unjustified
     subsidization of non-utility activities by the utility or its customers.
     (Section 7-204(b))
               Refer to the Testimony of William A. Koertner at pages 15-16,
               Lynda E. Marlett at pages 8-9, and Robert J. Mill at pages 15-16,
               and to Exhibit RJM-3.
          3.   Costs and facilities are fairly and reasonably allocated between
     utility and non-utility activities in such a manner that the Commission may
     identify those costs and facilities which are properly included by the
     utility for ratemaking purposes. (Section 7-204(c))

                                      10
<PAGE>
 
               Refer to the Testimony of William A. Koertner at pages
               15-16, Lynda E. Marlett at pages 8-9 and Robert J. Mill at pages
               15-16.

          4.   The proposed reorganization will not significantly impair the
     utility's ability to raise necessary capital on reasonable terms or to
     maintain a reasonable capital structure. (Section 7-204(d))

               Refer to the Testimony of William A. Koertner at pages 11-12 and
               Craig D. Nelson at pages 7-9.

          5.   The utility will remain subject to all applicable laws,
     regulations, rules, decisions and policies governing the regulation of
     Illinois public utilities. (Section 7-204(e))

               Refer to the Testimony of William A. Koertner at pages 15-16 and
               Robert J. Mill at pages 16-17.

IV.  REQUIREMENTS UNDER SECTION 7-204A FOR APPLICATION FOR APPROVAL OF
     REORGANIZATION

     As discussed above, Section 7-204A identifies the information that must be
provided in connection with a filing pursuant to Section 7-204.

     A.   NAMES AND CORPORATE RELATIONSHIPS OF ALL COMPANIES WHICH ARE
          AFFILIATED INTERESTS OF THE PUBLIC UTILITY ON THE DATE THE PUBLIC
          UTILITY APPLIES FOR REORGANIZATION AND THE NAME OF ANY PARENT OR
          SUBSIDIARY CORPORATION OF THE PUBLIC UTILITY. (SECTION 7-204A(A)(1)).
           
               Refer to the Testimony of Clifford L. Greenwalt at pages 2-3 and
               to Exhibit WAK-5.

                                      11
<PAGE>
 
     B.   A DESCRIPTION OF HOW THE PUBLIC UTILITY PLANS TO REORGANIZE. (SECTION
          7-204A(A)(2))

               Refer to the Testimony of Clifford L. Greenwalt at pages 4-5 and
               to Exhibits CLG-2, CLG-3 and WAK-2.

     C.   COPIES OF THE ORGANIZATION DOCUMENTS ASSOCIATED WITH THE
          REORGANIZATION, INCLUDING ARTICLES OF INCORPORATION OR AMENDMENTS TO
          THE ARTICLES OF INCORPORATION OF ALL COMPANIES INCLUDING THE PUBLIC
          UTILITY AND ANY AFFILIATED INTEREST. (SECTION 7-204A(A)(2)(I))

               Refer to Exhibits WAK-2, CDN-7 and CDN-8.

     D.   COPIES OF ANY FILINGS, INCLUDING SECURITIES FILINGS, RELATED TO THE
          REORGANIZATION MADE WITH ANY AGENCY OF THE STATE OF ILLINOIS OR THE
          FEDERAL GOVERNMENT.  (SECTION 7-204A(A)(2)(II))

          Applicants will file with the Commission a copy of each future filing
     with any agency of the State of Illinois, the State of Missouri or the
     federal government which they may make in regard to the Merger.  Applicants
     anticipate making the following filings: (i) a Joint Application by UE and
     CIPS for Authorization and Approval of Merger filed with the Federal Energy
     Regulatory Commission ("FERC") pursuant to Section 203 of the Federal Power
     Act ("FPA"); (ii) a Network Integration Service Tariff and a Point-to-Point
     Transmission Service Tariff filed by UE and CIPS with FERC pursuant to
     Section 205 of the FPA; (iii) a System Support Agreement between UE and
     CIPS filed with FERC pursuant to Section 205 of the FPA; (iv) a Joint
     Dispatch Agreement between UE and CIPS filed with FERC pursuant to Section
     205 of the FPA; (v) a Notification and Report Form for Certain Mergers and
     Acquisitions filed with the United States Department of Justice and the
     Federal Trade Commission pursuant to the

                                      12
<PAGE>
 
     Hart-Scott-Rodino Antitrust Improvements Act of 1976, as amended; (vi)
     filings with the SEC for (a) registration of the exchange of Ameren common
     stock for the common stock of CIPSCO and Union Electric pursuant to an S-4
     Registration Statement, under the Securities Act of 1933, and (b) approval
     of acquisition of securities and utility assets and other interests and
     other matters under Sections 6, 7, 9, 10, and 11 of PUHCA, approval of
     arrangements for provision of services among affiliates, and registration
     of Ameren as a holding company under Section 5 of PUHCA; (vii) an
     Application by UE with the Nuclear Regulatory Commission ("NRC") requesting
     authorization for transfer, directly or indirectly, through transfer of
     control, of the operating license, and all rights thereunder, for the
     Callaway Nuclear Plant; and (viii) an Application by UE for Approval of
     Merger pursuant to the Public Utilities Act of Missouri with the Missouri
     Public Service Commission to grant approval of, inter alia, the merger of
     UE with Arch Merger, Inc. The transmission tariffs and the Joint Dispatch
     Agreement to be filed with FERC are discussed in Gilbert W. Moorman's
     Testimony; the System Support Agreement and the arrangements for provision
     of services among affiliates are discussed in Robert J. Mill's testimony.
     Copies of these filings will be provided to the Commission concurrently
     with making the filing or immediately thereafter. 

                                      13
<PAGE>
 
     E.   THE COSTS AND FEES ATTRIBUTABLE TO THE REORGANIZATION. (SECTION 
          7-204A(a)(3)

               Refer to the Testimony of William A. Koertner  at pages 9-10 and
               to Exhibit GLR-5.

     F.   THE METHOD BY WHICH MANAGEMENT, PERSONNEL, PROPERTY, INCOME, LOSSES,
          COSTS AND EXPENSES WILL BE ALLOCATED BETWEEN THE PUBLIC UTILITY AND
          ANY AFFILIATED INTEREST.  (SECTION 7-204A(a)(4))

               Refer to the Testimony of Robert J. Mill at pages 15-16 and Lynda
               E. Marlett at pages 6-9.

     G.   A COPY OF ANY PROPOSED AGREEMENT BETWEEN THE PUBLIC UTILITY AND ANY
          PERSON WITH WHICH IT WILL BE AN AFFILIATED INTEREST AT THE TIME OF THE
          APPLICATION FOR REORGANIZATION.  (SECTION 7-204A(a)(5))

               Refer to the Testimony of Robert J. Mill at pages 15-16 and
               Gilbert W. Moorman at pages 14-15 and to Exhibits RJM-3 and 
               GWM-6.

     H.   AN IDENTIFICATION OF ALL PUBLIC UTILITY ASSETS OR INFORMATION IN
          EXISTENCE, SUCH AS CUSTOMER LISTS, WHICH THE APPLICANT PLANS TO
          TRANSFER TO OR PERMIT AN AFFILIATED INTEREST TO USE, WHICH
          IDENTIFICATION SHALL INCLUDE A DESCRIPTION OF THE PROPOSED TERMS AND
          CONDITIONS UNDER WHICH THE ASSETS OR INFORMATION WILL BE TRANSFERRED
          OR USED. (SECTION 7-204A(a)(6))

               None, except those identified on Exhibit GLR-3.

     I.   A COPY OF A FORECAST SHOWING THE CAPITAL REQUIREMENTS OF THE PUBLIC
          UTILITY AT THE TIME OF THE PROPOSED REORGANIZATION.  (SECTION 
          7-204A(a)(7))

               Refer to the Testimony of Craig D. Nelson at pages 10-11 and to
               Exhibit CDN-6.

     J.   NO PUBLIC UTILITY MAY PERMIT THE USE OF ANY PUBLIC UTILITY EMPLOYEE'S
          SERVICES BY ANY AFFILIATED INTEREST EXCEPT BY CONTRACT OR ARRANGEMENT.
          NO PUBLIC UTILITY MAY SELL, LEASE, TRANSFER TO OR EXCHANGE WITH ANY
          AFFILIATED INTEREST ANY PROPERTY EXCEPT BY CONTRACT OR ARRANGEMENT.
          (SECTION 7-204A(b))

               Refer to the Testimony of Lynda E. Marlett at pages 8-9 and
               Robert J. Mill at pages 15-16 and to Exhibit RJM-3.

                                      14
<PAGE>
 
V.   AMEREN'S RELATIONSHIPS WITH ITS AFFILIATED INTERESTS WILL BE CONSISTENT
     WITH THE PROVISIONS OF THE ACT

     A.   OVERVIEW OF CORPORATE STRUCTURE

     Ameren will operate as a registered holding company under PUHCA, and will
be the parent of UE, CIPS and CIC. CIC will continue to be the parent of
CIPSCO's other non-utility subsidiaries, and UE and CIPS will continue to hold
their respective interests in EEInc. UE will also continue to be the parent of
UED. As noted above, a chart showing the corporate structure after the Merger
accompanies this Application as Appendix C.

     B.   TRANSACTIONS INVOLVING AFFILIATED INTERESTS NECESSARY TO EFFECT THE
          MERGER AND REORGANIZATION WHICH REQUIRE COMMISSION APPROVAL PURSUANT
          TO SECTIONS 7-101, AND 7-204A(b)

          Section 7-101(3), in relevant part, states:

          No management, construction, engineering, supply, financial or similar
          contract and no contract or arrangement for the purchase, sale, lease
          or exchange of any property or for the furnishing of any service,
          property or thing, hereafter made with any affiliated interest, ...
          shall be effective unless it has first been filed with and consented
          to by the Commission.

          Section 7-204A(b) states:

          No public utility may permit the use of any public utility employee's
          services by any affiliated interest except by contract or arrangement.
          No public utility may sell, lease, transfer to or exchange with any
          affiliated interest any property except by contract or arrangement.
          The contract or arrangement herein is subject to Commission review at
          the discretion of the Commission, in the same manner as it may review
          any other public utility and its affiliated interest.

     As explained in the supporting testimony, some utility asset transfers, and
other transactions, will occur as part of the proposed Merger. Applicants
believe that by requesting the

                                      15
<PAGE>
 
Commission to approve the Merger as described in the accompanying Testimony and
Exhibits and to authorize the transactions contemplated thereby, they have
placed before the Commission all transactions requiring Commission approval and
not otherwise exempt from Commission approval pursuant to 83 Ill. Adm. Code (S)
310.60 and that further requests for Commission approval would be unnecessary.
See MidAmerican, Ill. C.C. No. 94-0439 (May 3, 1995). Accordingly, the
Applicants believe that they are in compliance with Sections 7-101(3) and
7-204(b) of the Act.

     C.   TRANSACTIONS BETWEEN CIPS AND OTHER AMEREN AFFILIATES

          1.   PROVISION OF SERVICES

     As indicated above, subsequent to the Merger, Applicants intend to
integrate various corporate functions. This could result in varying
arrangements, such as in CIPS and UE providing services to each other and other
affiliates, or in a service company providing services to the Ameren companies.

     Applicants have prepared a form contract of a services agreement (the
"General Services Agreement"), which accompanies Mr. Mill's testimony.
Applicants intend to file such an agreement with the SEC for its approval. Under
PUHCA, the SEC has jurisdiction over affiliated interest transactions of public
utility affiliates of a registered holding company. PUHCA and the SEC's rules
generally require that such public utility affiliates provide services to each
other at cost. Applicants request that the Commission find that the principles
reflected in the General Services Agreement are reasonable and in the public
interest.

                                      16
<PAGE>
 
     In its Order on Reopening in Docket No. 86-0256, the proceeding in which
the Commission approved the formation of CIPS's holding company parent, the
Commission approved certain accounting procedures and found that each of CIPS'
affiliates should pay to CIPS an annual compensatory payment equal to five
percent of the dollar amount of "direct transactions" between CIPS and that
affiliate. In this context, the Commission defined affiliate to include "only
[CIPSCO] and any non-utility company a majority of whose stock is owned by
[CIPSCO]." Order on Reopening, p. 16. Applicants also request that, in
recognition of the new arrangements which will be required by the Merger, and
which will be subject to SEC approval, the Commission terminate the accounting
and allocation procedures it approved in Docket 86-0256, effective upon
consummation of the Merger.

          2.   SYSTEM SUPPORT AGREEMENT

     As discussed above, upon consummation of the Merger, CIPS will succeed to
UE's electric and gas utility business in Illinois. UE's present Illinois
electric customers are served from UE's electric generating capacity. To permit
CIPS to absorb the load represented by former UE customers in Illinois, CIPS and
UE will enter into a System Support Agreement. Under that Agreement, UE will
provide CIPS with the amount of capacity presently allocated by UE to its
Illinois electric operations.

     The System Support Agreement, which is discussed in detail in Mr. Mill's
testimony, requires the approval of, and will be filed with, FERC. Additionally,
Applicants request that this

                                      17
<PAGE>
 
Commission make a finding that CIPS' entry into the agreement is prudent and
reasonable, and consent thereto.

          3.   JOINT DISPATCH AGREEMENT

     CIPS and UE also intend to enter into a Joint Dispatch Agreement, pursuant
to which CIPS and UE will operate their combined generation and transmission
facilities as a single control area.  The Joint Dispatch Agreement will be filed
with FERC.  Applicants request that the Commission make a finding that CIPS'
entry into a Joint Dispatch Agreement with UE is prudent and reasonable, and
consent thereto.

VI.  REQUEST FOR APPROVAL OF CAPITALIZATION PURSUANT TO SECTION 6-103

     Section 6-103 provides that, in any reorganization of a public utility, the
amount of capitalization of the public utility, including all stocks and stock
certificates and bonds, notes and other evidences of indebtedness, shall be as
authorized by the Commission.  The capital structure and forecasted capital
requirements of CIPS (the surviving Illinois public utility) immediately prior
and subsequent to effectuation of the Merger are discussed by Mr. Nelson in his
Testimony.  Applicants request that the Commission approve CIPS' capitalization.

VII. CERTIFICATES OF PUBLIC CONVENIENCE AND NECESSITY AND FRANCHISES

     A.   REQUEST, PURSUANT TO SECTION 8-508, TO AUTHORIZE UE TO DISCONTINUE
          PROVIDING RETAIL ELECTRIC AND GAS SERVICE IN THE STATE OF ILLINOIS

     Except for certain transactions involving political subdivisions or
municipalities, Section 8-508 prohibits a public utility from abandoning or
discontinuing any service without the

                                      18
<PAGE>
 
approval of the Commission. As described in this Application and the supporting
Testimony and Exhibits, upon consummation of the Merger, UE's Illinois utility
operations and assets (other than certain electric generating and transmission
plant) will be transferred to CIPS, and CIPS will provide electric and gas
service to the customers in Illinois who received such service from UE
immediately prior to the consummation of the Merger. At such time, CIPS will
commence providing service to those customers subject to essentially the same
rates, terms and conditions as offered by UE until such rates, terms and
conditions are changed by CIPS in accordance with the Act. The new Illinois
customers of CIPS will continue to receive adequate, reliable, efficient, safe
and least-cost public utility service after the Merger. Consequently, the
Applicants request, pursuant to Section 8-508, that the Commission permit UE to
discontinue service to its retail Illinois electric and gas customers, subject
to consummation of the proposed Merger.

     B.   REQUEST OF THE APPLICANTS FOR TRANSFER OF CERTIFICATES OF PUBLIC
          CONVENIENCE AND NECESSITY ISSUED PURSUANT TO SECTION 8-406

     Section 8-406 of the Act governs certificates of public convenience and
necessity. Section 8-406(e) further provides that any authorization or order
granted to a public utility by the Commission under the Electric Supplier Act,
220 ILCS 30/1, et seq., shall be deemed to be a certificate of public
convenience and necessity issued pursuant to Section 8-406.

     UE holds numerous certificates of public convenience and necessity issued
pursuant to, or deemed to have been issued

                                      19
<PAGE>
 
pursuant to, Section 8-406. Therefore, Applicants request that the Commission,
upon finding that the conditions exist for approval of the Merger pursuant to
Sections 7-102 and 7-204 and authorizing the Merger pursuant to such Sections,
also authorize the general transfer to CIPS of the certificates of public
convenience and necessity granted, or deemed to be granted, to UE pursuant to
Section 8-406, without requiring specific identification of each such
certificate.

     C.   REQUEST FOR APPROVAL OF TRANSFER OF FRANCHISES

     Section 7-203 of the Act requires the Commission's approval of the
assignment or transfer of any "franchise, license, permit or right to own,
operate, manage or control any public utility." As discussed above, CIPS will
succeed to UE's electric and gas utility business in Illinois. Applicants
request that the Commission approve the transfer to CIPS of the franchises and
other similar rights which UE currently holds in Illinois, effective as of
closing of the Merger.

     D.   FINDING REGARDING UE'S STATUS UNDER THE ACT
     
     Upon transfer of UE's electric and gas distribution assets, operations,
franchises and certificates to CIPS, UE will no longer have any retail customers
within Illinois. Further, UE will not hold itself out as providing retail
electric or gas utility service to the public in Illinois. Accordingly,
Applicants request that the Commission find that, effective as of closing of the
Merger, UE will not be a public utility within the meaning of Section 3-105 of
the Illinois Public Utilities Act. 220 ILCS 5/3-105 (1993).

                                      20
<PAGE>
 
VIII.  CIPS WILL FILE TARIFFS IN ACCORDANCE WITH SECTION 9-102

       Section 9-102 requires every public utility to file with the Commission
schedules showing all rates, charges, classifications, rules and regulations
relating to any product, commodity or service provided by the public utility.
Upon consummation of the Merger, CIPS will adopt essentially the same rates,
charges, classifications, rules and regulations relating to electric and gas
service as UE had in effect prior to consummation of the Merger for service
provided by CIPS to the customers in the former UE Illinois service territory.
The new CIPS tariffs for service to that service territory are discussed in Mr.
Mill's testimony and will be filed with the Commission pursuant to Sections
9-102, 9-103 and 9-201. These tariffs will continue in effect until changed
pursuant to the Act and the rules promulgated thereunder.

       Due to the exigencies of implementing the Merger upon receiving all
requisite shareholder and regulatory approvals, CIPS anticipates filing its
tariffs with the Commission less than 45 days before consummating the Merger.
Therefore, CIPS requests the Commission to exercise its authority under Section
9-201 to waive the 45 day notice requirement for the filing of tariffs and to
include in the order approving the Merger a provision authorizing CIPS to file
its tariffs as proposed herein not less than five days prior to consummating the
Merger, such date of consummating the Merger being the effective date of the
tariffs.  See MidAmerican, Docket 94-0439 (May 3, 1995).

                                      21
<PAGE>
 
IX.    REGULATORY TREATMENT OF MERGER-RELATED COSTS AND SAVINGS

       CIPS intends to file new electric base rates applicable to its present
service territory no later than 12 months after closing of the Merger, and
possibly as early as mid-1996.  The rate filing will include an alternative
regulation plan and a proposal for reflecting in rates the effect of the Merger,
including cost savings, the costs to achieve those savings, transaction costs
and the merger premium.  Specifically, CIPS intends to propose that, over the
first ten years following the Merger, Merger-related savings, net of the costs
to achieve, transaction costs and merger premium, be shared equally between the
shareholders and ratepayers.  All Merger-related savings after that ten year
period would accrue to the sole benefit of the ratepayers.  The proposal is
discussed in detail in the testimony of Mr. Rainwater.  Applicants request that
the Commission find that this proposed treatment of the Merger-related costs and
cost savings is reasonable, and should be reflected in the alternative
regulation plan filed by CIPS.

X.     DISPOSITION OF NUCLEAR DECOMMISSIONING TRUST

       UE's rates in Illinois, as well as its wholesale rates and its rates in
Missouri, recognize nuclear decommissioning expenses.  The amounts reflected in
cost of service are deposited quarterly in an external qualified trust.  UE also
maintains a non-qualified trust, subject to this Commission's jurisdiction under
Section 8-508.1 of the Act.  The amount collected by UE annually from Illinois
ratepayers is $355,000, and, as of June 30, 1995, a total of $5.7 million is
held in the Illinois

                                      22
<PAGE>
 
subaccount of the external qualified trust.  No funds are held in the non-
qualified trust.

       As discussed above, once the Merger is consummated, UE will no longer
have an Illinois retail electric jurisdiction. Since the IRS requires that
contributions into a qualified trust must be included in the contributing
jurisdiction's cost of service, UE will no longer be able to place the annual
contribution from Illinois customers into the qualified trust.

       As also discussed above, UE and CIPS propose to enter into a System
Support Agreement.  That agreement provides, inter alia, for the payment by CIPS
to UE of nuclear decommissioning costs, which would be contributed to the
qualified trust quarterly in the FERC subaccount, because the System Support
Agreement is FERC jurisdictional.

       Applicants request that, to the extent required by Section 8-508.1 of the
Act, the Commission authorize transfer of the balance of funds in the Illinois
subaccount, as of the date of the Merger, to the FERC subaccount in connection
with the UE-CIPS asset transfer.  As discussed in Mr. Jerre Birdsong's
testimony, such a transfer of funds is reasonable and in the public interest.

XI.    CONCLUSION

       For the reasons stated above, Applicants respectfully request the
Commission to issue an order approving this Application. Specifically,
Applicants request the Commission to issue an order as follows:

                                      23
<PAGE>
 
          A.   Pursuant to Section 7-102, authorizing CIPSCO to merge with
       Ameren, and UE to merge with Arch Merger, Inc., with Ameren becoming the
       holding company parent of UE and CIPS, and CIPS acquiring UE's Illinois
       assets (other than electric generation and transmission assets) and
       succeeding to UE's Illinois public utility business, all as set forth
       herein;

          B.   Pursuant to Section 7-204, authorizing UE, CIPS and CIPSCO to
       reorganize as set forth in this Application;

          C.   Pursuant to Sections 7-101, 7-102 and 7-204A, authorizing CIPS to
       engage in transactions with affiliated interests as set forth in this
       Application;

          D.   Finding that the cost allocation principles reflected in the
       General Services Agreement are reasonable;

          E.   Finding that CIPS' entry into System Support Agreement is prudent
       and reasonable and consenting thereto;

          F.   Finding that CIPS' entry into the Joint Dispatch Agreement is
       prudent and reasonable and consenting thereto;

          G.   Pursuant to Section 6-103, approving the Merger capitalization of
       CIPS, as set forth herein;

          H.   Pursuant to Section 8-508, authorizing UE to discontinue
       providing retail electric and gas service in the State of Illinois as of
       the date of closing of the proposed Merger;

                                      24
<PAGE>
 
          I.   Pursuant to Section 8-406, generally transferring to CIPS all
       certificates of public convenience and necessity issued by the Commission
       pursuant to Section 8-406, or any similar provision of predecessor
       statutes, to UE;

          J.   Pursuant to Section 7-203, transferring to CIPS all Illinois
       franchises, licenses, permits or rights held by UE at the effective time
       of the Merger;

          K.   Finding that, upon UE's discontinuance of retail electric and
       gas service in Illinois, UE shall cease to be a public utility within
       Section 3-105 of the Act;

          L.   Pursuant to Section 9-201, waiving the 45 day notice requirement
       for the filing of the initial CIPS tariffs and authorizing CIPS to file
       such tariffs not less than five days prior to the effective time of the
       Merger which time shall be the effective time of the tariffs;

          M.   Finding that it is appropriate for CIPS to propose an alternative
       regulation plan that would share between shareholders and ratepayers,
       over a ten year period, Merger-related savings, net of costs to achieve,
       transaction costs and the merger premium;

          N.   Terminating the conditions for transactions among CIPS and its
       affiliates in Docket 86-0256, effective upon consummation of the Merger;

          O.   To the extent required by Section 8-508.1, approving the transfer
       of funds in the Illinois subaccount

                                      25
<PAGE>
 
     of UE's nuclear decommissioning qualified external trust to the FERC
     subaccount of that same trust; and

          P.   Authorizing Applicants' performance of such other and further
     actions or transactions which are not contrary to the Act or the rules of
     the Commission, or inconsistent with this Application, as may be necessary
     and appropriate to carry out the actions and transactions proposed by this
     Application.

                            Respectfully submitted,


   CENTRAL ILLINOIS PUBLIC              UNION ELECTRIC COMPANY
     SERVICE COMPANY
   CIPSCO INCORPORATED

    /s/ Christopher W. Flynn             /s/ Joseph H. Raybuck
By:_____________________________     By:_________________________
   David J. Rosso                       Joseph H. Raybuck
   Christopher W. Flynn                 Steven R. Sullivan
   Thomas D. Brooks                     Union Electric Company
   Jones, Day, Reavis & Pogue           1901 Chouteau Avenue
   77 West Wacker                       P.O. Box 149
   Suite 3500                           St. Louis, Missouri  63166
   Chicago, Illinois  60606-1692

   Attorneys for Central Illinois       Attorneys for Union
     Public Service Company and           Electric Company
     CIPSCO, Incorporated

                                      26

<PAGE>
 
                                                                 Exhibit D - 4.1
 
February 23, 1996

U.S. Nuclear Regulatory Commission
Attn:  Document Control Desk
Mail Station P1-137
Washington, D.C.  20555                              ULNRC-03341



Gentlemen:



                             DOCKET NUMBER 50-483
                                CALLAWAY PLANT
               REVISION TO FACILITY OPERATING LICENSE NO. NPF-30
               -------------------------------------------------

     Union Electric Company herewith transmits an application for amendment to
Facility Operating License No. NPF-30 for Callaway Plant.

     Union Electric Company ("Union Electric") is the holder of Facility
Operating License No. NPF-30 ("the License") for Callaway Plant Unit No. 1
("Callaway"). It has entered into a merger agreement with CIPSCO Incorporated
which provides for Union Electric to become a wholly-owned operating company of
Ameren Corporation ("Ameren"), a registered public utility holding company under
the Public Utility Holding Company Act of 1935, as amended. By this Application,
Union Electric requests that the License be amended, pursuant to 10 C.F.R. (S)
50.90 to reflect Union Electric's status as an operating company subsidiary of
Ameren.

     Attachments 1 and 2 contain the Application of Union Electric Company for
Amendment of License No. NPF-30 and Safety Evaluation, and the Proposed
Operating License Change in support of this amendment request, respectively. The
Application references four Exhibits: The Agreement and Plan of Merger, the
Ameren Corporation Unaudited Pro Forma Combined Condensed Balance Sheet, the
Significant Hazards Evaluation, and the Environmental considerations. This
change request has been approved by the Callaway Onsite Review Committee and the
Nuclear Safety Review Board.

     We are requesting that the NRC Staff please expedite their review of this
submittal so that the requested
<PAGE>
 
U.S. Nuclear Regulatory Commission
Page 2

 
amendment will be issued by August 1996 to facilitate the completion of the
Merger.

     If you have any questions concerning this matter, please contact me.

                                       Very truly yours,



                                       /s/ Donald F. Schnell



JMC:mas

Attachments:  1)  Application for Amendment of License
                  and Safety Evaluation
                  (includes 4 Exhibits)
               2)  Proposed Operating License Change
<PAGE>
 
                                                                    Attachment 1
                                                                     ULNRC-03341



                             ATTACHMENT 1 CONTENTS
                             ---------------------



1)   APPLICATION FOR AMENDMENT AND SAFETY EVALUATION
     PAGES 1 THRU 15

2)   EXHIBIT 1 - AGREEMENT AND PLAN OF MERGER

3)   EXHIBIT 2 - AMEREN CORPORATION BALANCE SHEET

4)   EXHIBIT 3 - SIGNIFICANT HAZARDS CONSIDERATION

5)   EXHIBIT 4 - ENVIRONMENTAL CONSIDERATION
<PAGE>
 
                   APPLICATION OF UNION ELECTRIC COMPANY FOR
             AMENDMENT OF LICENSE NO. NPF-30 AND SAFETY EVALUATION
             -----------------------------------------------------

I.  INTRODUCTION
    ------------

     Union Electric Company ("Union Electric") is the holder of Facility
Operating License No. NPF-30 ("License") for Callaway Plant Unit No. 1
("Callaway"). It has entered into a merger agreement with CIPSCO Incorporated
("CIPSCO") which provides for Union Electric to become a wholly-owned operating
company of Ameren Corporation ("Ameren"), a registered public utility holding
company under the Public Utility Holding Company Act of 1935, as amended ("the
1935 Act"). By this Application, Union Electric requests that the License be
amended, pursuant to 10 C.F.R. (S) 50.90 to reflect Union Electric's status as
an operating company subsidiary of Ameren.

     The Agreement and Plan of Merger among Union Electric, CIPSCO, Ameren, and
Arch Merger, Inc., dated August 11, 1995 ("the Merger Agreement"), is attached
as Exhibit 1. Pursuant to the Merger Agreement, Union Electric, Central Illinois
Public Service Company ("CIPS") (CIPSCO's principal utility operating
subsidiary) and CIPSCO Investment Company (CIPSCO's subsidiary for conducting
non-utility businesses) will become wholly-owned operating subsidiaries of
Ameren.

     Union Electric, a Missouri corporation, is the largest electric utility in
Missouri. It supplies electric service to customers in its service territories
in Missouri and Illinois having an estimated population of 2,600,000 within an
area of approximately 24,500 square miles, including the greater St. Louis area.
In addition, Union Electric supplies natural gas
<PAGE>
 
service to the public in ninety (90) Missouri communities, and in Alton,
Illinois and vicinity.

     CIPSCO, an Illinois corporation, is the parent holding company of CIPS,
CIPSCO's principal utility operating subsidiary. CIPSCO conducts its non-utility
businesses through a second subsidiary, CIPSCO Investment Company ("CIC"), an
Illinois corporation. CIPS serves 317,000 retail electric customers and 166,000
natural gas customers in its 20,000 square mile central and southern Illinois
service territory having an estimated population of 820,000.

     Ameren is a Missouri corporation fifty percent (50%) of which is owned by
each of Union Electric and CIPSCO. Ameren was formed by Union Electric and
CIPSCO for the purpose of effecting the transactions contemplated by the Merger
Agreement. After the merger, Ameren will be the holding company for Union
Electric, CIPS, and the other subsidiaries of CIPSCO. Ameren will be a public
utility holding company registered under the 1935 Act. The principal executive
office of Ameren will be located at 1901 Chouteau Avenue, St. Louis, Missouri
63103.

     Arch Merger, Inc. is a Missouri corporation wholly-owned by Ameren which
was created to effect the Union Electric merger. It has no operations except as
contemplated by the Merger Agreement.

     Callaway is a nuclear powered generating facility which is solely-owned and
operated by Union Electric in accordance with the License. After the merger,
Union Electric, as a subsidiary of Ameren, will continue to own and operate
Callaway.

                                       2
<PAGE>
 
II.  THE MERGER
     ----------

     The Merger Agreement provides for two separate mergers ("the Merger").

     A.  The Union Electric Merger in which Arch Merger, Inc. will be merged
with and into Union Electric with Union Electric to be the surviving
corporation, and

     B.  The CIPSCO Merger in which CIPSCO will be merged with and into
Ameren with Ameren to be the surviving corporation.

     The surviving corporate structure will have Ameren as the holding company
with Union Electric, CIPS and CIPSCO Investment Co. as subsidiaries.

     Pursuant to the Merger Agreement, each outstanding share of Union Electric
Common Stock, with some exceptions as specified in Exhibit 1, will be exchanged
for one share of Ameren Common Stock. Each share of Union Electric Preferred
Stock, with some exceptions as specified in Exhibit 1, will remain outstanding
and unchanged. Each share of CIPSCO Common Stock, with some exceptions as
specified in Exhibit 1, will be exchanged for 1.03 shares of Ameren Common
Stock. As a result of the Merger, the common shareholders of Union Electric and
CIPSCO immediately prior to the Merger (except for the holders of Union Electric
Dissenting shares) will all be common shareholders of Ameren immediately upon
the consummation of the Mergers.

     The Merger will have no effect on the operation of Callaway or the
provisions of its License. Union Electric will continue to own and operate
Callaway after the Merger, as required by the License.

                                       3
<PAGE>
 
     Proxy materials were distributed to the shareholders of Union Electric and
CIPSCO on November 13, 1995. Special meetings of the shareholders of Union
Electric and CIPSCO were held on December 20, 1995. The shareholders of both
companies approved the Merger Agreement.

     In addition to this Application, other applications, reviews or proceedings
regarding the Merger are pending before the Federal Energy Regulatory Commission
("FERC"), the Missouri Public Service Commission ("MPSC"), and the Illinois
Commerce Commission ("ICC"). Also, an application will be filed in the near
future with the Securities and Exchange Commission ("SEC") regarding the Merger.

     The information required to be included in an application to amend a
license pursuant to 10 C.F.R. (S) 50.90 is stated below./1/ This information
demonstrates that the requested consent is consistent with applicable provisions
of law, NRC regulations and NRC orders. Antitrust information is set forth in
Section V below.

III.  DESCRIPTION OF PROPOSED CHANGE
      ------------------------------

     The Merger requires no change in the design or operation of Callaway.
Furthermore, the Merger does not require any change to the Technical
Specifications for Callaway. However, after the Merger, Union Electric will
become a wholly-owned operating

- ------------
/1/  Since Union Electric will continue to own and operate Callaway after the
Merger, no transfer of the License is necessary pursuant to 10 C.F.R. (S) 50.80.
However, this application proposes an amendment to reflect in the License Union
Electric's status as an operating company subsidiary of Ameren.


                                       4
<PAGE>
 
subsidiary of Ameren. Therefore, the Merger may be deemed to effect a change in
the control of the owner of Callaway, Union Electric. Accordingly, this
Application requests the License be amended to reflect the effective change in
control of the owner of Callaway, Union Electric, as a result of the Merger.

     With regard to the amendment of the License, Union Electric specifically
requests the NRC to add a footnote after the words "Union Electric Company" in
Paragraph 1.A of NPF-30 which states:

     "As of the closing of the Merger contemplated by the Agreement and Plan of
     Merger, by and among Union Electric Company, CIPSCO Incorporated, Ameren
     Corporation and Arch Merger, Inc., dated August 11, 1995, Union Electric
     Company is a wholly-owned operating subsidiary of Ameren Corporation."


IV.  GENERAL INFORMATION CONCERNING THE LICENSEE
     -------------------------------------------

A.  Name and Address of Current Licensee
    ------------------------------------

               Union Electric Company
               1901 Chouteau Avenue
               P.O. Box 149
               St. Louis, MO  63103

B.  Name and Address of Proposed Licensee
    -------------------------------------

     After the Merger, Union Electric will continue to own and operate Callaway.
Union Electric's address will not change as a result of the Merger.

C.   Description of Business or Occupation of Licensee
     -------------------------------------------------

     Following the Merger, Union Electric will continue to be engaged
principally in the generation, transmission, distribution, and retail and
wholesale sale of electricity in Missouri. Union Electric will also continue to
be engaged in the distribution and retail sale of natural gas in Missouri.

                                       5
<PAGE>
 
D.  Organization and Management of Licensee
    ---------------------------------------

     Union Electric is an independent, investor-owned public utility, duly
organized and existing under the laws of the State of Missouri.  Its corporate
headquarters is located in St. Louis, Missouri.  Following the Merger, Union
Electric will become a wholly-owned operating subsidiary of Ameren and it shall
maintain its corporate headquarters in St. Louis.

     The officers of Union Electric, all of whom are citizens of the United
States, can be reached at 1901 Chouteau Avenue, St. Louis, Missouri  63103.
Their names and titles are:

Charles W. Mueller                     President and
                                       Chief Executive Officer

Donald E. Brandt                       Senior Vice President
                                       Finance & Corporate Services

Robert O. Piening                      Senior Vice President
                                       Power Operations

Donald F. Schnell                      Senior Vice President
                                       Nuclear

Charles J. Schukai                     Senior Vice President
                                       Customer Services

Paul A. Agathen                        Senior Vice President
                                       Energy Supply Service

M. Patricia Barrett                    Vice President
                                       Corporate Communications

Charles A. Bremer                      Vice President
                                       Information Services

Donald W. Capone                       Vice President
                                       Engineering & Construction

William J. Carr                        Vice President
                                       Customer Services-Regional

                                       6
<PAGE>
 
Jean M. Hannis                         Vice President
                                       Human Resources

William E. Jaudes                      Vice President
                                       General Counsel

R. Alan Kelley                         Vice President
                                       Energy Supply

Michael J. Montana                     Vice President
                                       Supply Service

Garry L. Randolph                      Vice President
                                       Nuclear Operations

Gary L. Rainwater                      Vice President
                                       Corporate Planning

Robert J. Schukai                      Vice President
                                       Power Plants

William C. Shores                      Vice President
                                       Customer Services-Metropolitan

Samuel E. Willis                       Vice President
                                       Industrial Relations

Ronald C. Zdellar                      Vice President
                                       Customer Services-Division Support

Jerre Birdsong                         Treasurer

Joseph M. Pfeifer                      Controller

James C. Thompson                      Secretary


     The Directors of Union Electric, all of whom are citizens of the United
States, can all be reached c/o James C. Thompson, Secretary, Union Electric
Company, 1901 Chouteau Avenue, St. Louis, Missouri 63103.  Their names are:

               William E. Cornelius
               Thomas A. Hays
               Thomas H. Jacobsen
               Richard A. Liddy
               John Peters MacCarthy
               Paul L. Miller, Jr.

                                       7
<PAGE>
 
               Charles W. Mueller
               Robert H. Quenon
               Harvey Saligman
               Janet Weakley


     The Merger Agreement provides that after the Merger, the Board of Directors
of Union Electric, as the surviving corporation in the Union Electric Merger,
shall initially consist of Mr. Charles W. Mueller (President and Chief Executive
Officer of Union Electric), Mr. Clifford L. Greenwalt (President and Chief
Executive Officer of CIPSCO) and such other nominees as shall be determined by
the company.  When the remaining Directors of Union Electric are selected, Union
Electric will submit their names as part of the annual financial report provided
to the NRC pursuant to 10 C.F.R. 50.71(b).  Furthermore, all Directors selected
will be citizens of the United States.

E.  Class and Period of License Applied For
    ---------------------------------------

     Union Electric seeks NRC consent that after the Merger, Union Electric will
continue to own and operate Callaway, as a wholly-owned operating company
subsidiary of Ameren.  Therefore, Union Electric requests that its existing
Class 103 license, NPF-30, be amended to reflect Union Electric's status as an
operating company subsidiary of Ameren.

     The Merger will have no change on the duration of the License.

F.  Financial Aspects
    -----------------

     After the Merger, Union Electric remains committed to provide all funds
necessary for the safe operation, maintenance,

                                       8
<PAGE>
 
repair, decontamination and decommissioning of Callaway in conformance with NRC
regulations, subject to the same conditions, terms, and obligations of the
License.  After the Merger, Union Electric's financial ability to fund the above
costs will be equal to, or greater than, its ability without the Merger.  The
Merger will result in cost efficiencies to help maintain competitive rates.
Ameren will be more effective in meeting the challenges of the increasingly
competitive environment in the utility industry than Union Electric standing
alone.  The Merger will also result in integration of corporate and
administrative functions, reduced operating costs through joint dispatch of the
Union Electric and CIPS systems, purchasing economies, increased marketing
opportunities in the wholesale and interchange markets, a more diverse service
territory, and expanded management resources.  The above synergies from the
Merger will result in substantial cost savings which will benefit both
shareholders and customers.

     Because Union Electric's ability after the Merger to provide all necessary
funds for the safe operation, maintenance, repair, decontamination and
decommissioning of Callaway will be equal to, or greater than its ability
without the Merger, a full financial qualifications' review should not be
necessary as a result of the approval requested in this Application.

     Nevertheless, the Ameren Corporation Unaudited Pro Forma Combined Condensed
Balance Sheet at September 30, 1995 is attached as Exhibit 2.  This information
shows that Union

                                       9
<PAGE>
 
Electric remains financially qualified to carry out its financial commitments
under the License after the Merger.

G.  Regulatory Agencies
    -------------------
     The regulatory agencies which have jurisdiction over Union Electric's rates
and services are:

               Missouri Public Service Commission
               P.O. Box 360
               Jefferson City, MO  65102

               Illinois Commerce Commission
               527 East Capitol Avenue
               Springfield, IL  62706

               Federal Energy Regulatory Commission
               888 First Street, NE
               Washington, DC  20426


H.  Restricted Data
    ---------------

     This Application does not contain any restricted data or other defense
information.

V.  ANTITRUST CONSIDERATIONS
    ------------------------

     The Merger is subject to a separate antitrust review by the FERC.  In
addition, it is subject to reviews by the Department of Justice ("DOJ") or the
Federal Trade Commission ("FTC") and the expiration of the applicable waiting
period under the Hurt-Scott-Rodino Antitrust Improvement Act of 1976 as amended
(the "HSR Act").  Union Electric also intends to file an Application for
Authorization and Approval of the Mergers with the SEC early in  1996.  Because
antitrust issues will be among the issues addressed by the FERC, the DOJ, and
the FTC as discussed above,

                                      10
<PAGE>
 
the NRC may rely on those proceedings and need not conduct its own antitrust
review of the Merger.

     The NRC's deferral to agencies having primary jurisdiction in these matters
is entirely consistent with Regulatory Guide 9.3, Regulatory Staff Position
Statement on Anti-Trust Matters, which states, in relevant part, as follows:

          In general, reliance would be placed on the exercise of [FERC] and
          state jurisdiction regarding the specific terms and conditions of the
          sale of power, rates for transmission services and such matters as may
          be within the scope of their jurisdiction.

     Therefore, the NRC need not conduct an antitrust review of the Merger and
can conclude that the Merger will not result in a "significant change" in the
activities of Union Electric.

VI.  EFFECTIVE DATE
     --------------

     As discussed above, the Merger requires the approval of the  FERC, the SEC,
the MPSC, and the ICC.  In addition, it is subject to review by the DOJ or the
FTC and the expiration of the applicable waiting period under the HSR Act.  The
companies are working to complete the Merger in 1996.  Therefore, Union Electric
is seeking to obtain all necessary regulatory approvals prior to that time.
Union Electric requests that the NRC review this request on a schedule that will
result in final action as promptly as possible, and in any event prior to August
1, 1996.  The license amendment shall be effective on issuance and will be
implemented prior to the closing of the Merger.

VII.  COMMUNICATIONS REGARDING THIS APPLICATION
      -----------------------------------------

                                      11
<PAGE>
 
     All communications pertaining to this Application should be sent to:

            Joseph E. Birk
            Assistant to the Vice President
              and General Counsel
            Union Electric Company
            P.O. Box 149 (MC 1301)
            St. Louis, MO  63166

            William B. Bobnar
            Attorney
            Union Electric Company
            P.O. Box 149  (MC 1310)
            St. Louis, MO  63166

            Alan C. Passwater
            Manager-Licensing & Fuels
            Union Electric Company
            P.O. Box 149  (MC 470)
            St. Louis, MO  63166


VIII.  TECHNICAL ASPECTS
       -----------------

     Union Electric is neither requesting changes in the design and/or operation
of Callaway nor any changes in the terms and conditions of the License or
Technical Specifications.  After consummation of the Merger, Union Electric will
continue to operate and support Callaway using the existing organizational
structure and personnel.  The Merger will be described in the Callaway Final
Safety Analysis Report ("FSAR").  In addition, no changes are required in the
Physical Security Plan, Safeguards Contingency Plan, or the Radiological
Emergency Response Plan ("RERP").  The proposed change to the Operating License
does not involve an unreviewed safety question because the operation of the
Callaway Plant with this change would not:

                                      12
<PAGE>
 
A.   Increase the probability of occurrence or the consequences of an accident
     or malfunction of equipment important to safety previously evaluated in the
     safety analysis report.  The proposed change does not affect accident
     initiators or assumptions.  The radiological consequences of any accident
     previously evaluated remain unchanged.  The change is an administrative
     change to reflect Union Electric's status as an operating company
     subsidiary of Ameren.

B.   Create the possibility for an accident or malfunction of a different type
     than any previously evaluated in the safety analysis report.  The proposed
     change does not create any new accident initiators nor involve any
     modifications or changes in the plant.  The change is administrative and
     reflects Union Electric's status as an operating company subsidiary of
     Ameren.

C.   Reduce the margin of safety as defined in the basis for any technical
     specification.  The proposed change does not reduce the margin of safety
     assumed in any accident analysis or affect any safety limits.  The change
     is administrative and reflects Union Electric's status as an operating
     company subsidiary of Ameren.

     On the basis of the above discussions and the considerations presented in
the Significant Hazards Consideration (see Exhibit 3), the proposed change does
not adversely affect or endanger the health or safety of the general public or
involve a significant safety hazard.

                                      13
<PAGE>
 
XI.  ENVIRONMENTAL CONSIDERATIONS
     ----------------------------
     Environmental considerations are addressed in Exhibit 4.

X.   REQUEST FOR NRC ACTION
     ----------------------

     Union Electric requests, for the reasons stated above, that the NRC approve
the proposed amendment request of the License which describes Union Electric as
a wholly-owned subsidiary of Ameren Corporation as being consistent with the
applicable provisions of law, regulations and orders issued by the NRC pursuant
thereto.

Respectfully submitted,

UNION ELECTRIC COMPANY



By  /s/ Donald F. Schnell
    ---------------------
    Donald F. Schnell
    Senior Vice President
    Nuclear

                                      14
<PAGE>
 
STATE OF MISSOURI   )
                    )       SS
CITY OF ST. LOUIS   )



     Donald F. Schnell, of lawful age, being first duly sworn upon oath, says
that he is Senior Vice President-Nuclear and an officer of Union Electric
Company; that he has read the foregoing document and knows the content thereof;
that he has executed the same for and on behalf of said Company with full power
and authority to do so; and that the facts therein stated are true and correct
to the best of his knowledge, information and belief.



                                       By /s/ Donald F. Schnell
                                          ---------------------
                                          Donald F. Schnell
                                          Senior Vice President
                                          Nuclear



     SUBSCRIBED and sworn to before me this 23rd day of February, 1996.



                                               Signature
                                          ---------------------  
                                              Notary Public
<PAGE>
 
cc:  T. A. Baxter, Esq.
     Shaw, Pittman, Potts & Trowbridge
     2300 N. Street, N.W.
     Washington, D.C.  20037

     M. H. Fletcher
     Professional Nuclear Consulting, Inc.
     19041 Raines Drive
     Derwood, MD  20855-2432

     L. Joe Callan
     Regional Administrator
     US Nuclear Regulatory Commission
     Region IV
     611 Ryan Plaza Drive
     Suite 400
     Arlington, TX  76011-8064

     Senior Resident Inspector
     Callaway Resident Office
     US Nuclear Regulatory Commission
     8201 NRC Road
     Steedman, MO  65077
  
     Kristine M. Thomas (2)
     Office of Nuclear Reactor Regulation
     US Nuclear Regulatory Commission
     1 White Flint, North, Mail Stop 13E16
     11555 Rockville Pike
     Rockville, MD  20852-2738
  
     Manager, Electric Department
     Missouri Public Service Commission
     P.O. Box 360
     Jefferson City, MO  65102
  
     Ron Kucera
     Department of Natural Resources
     P.O. Box 176
     Jefferson City, MO  65102
<PAGE>
 
                                                                       Exhibit 1


Exhibit 1 to the NRC Application is included as Annex A to Exhibit C-1 to the 
U-1 Application.
<PAGE>
 
                                                                       Exhibit 2


           Exhibit 2 to the NRC Application appears as Exhibit FS-1
                            to the U-1 Application.
<PAGE>
 
                                                                       Exhibit 3



                       SIGNIFICANT HAZARDS CONSIDERATION
                       ---------------------------------

     This amendment request revises Union Electric Company's Facility Operating
License No. NPF-30 for Callaway Plant to add a footnote after the words "Union
Electric Company" in Paragraph 1.A to indicate that Union Electric has entered
into a merger agreement with CIPSCO Incorporated which provides for Union
Electric to become a wholly-owned operating company of Ameren Corporation, a
registered public utility holding company under the Public Utility Holding
Company Act of 1935, as amended ("the 1935 Act"). This proposed request allows
amendment of the License, such that after the merger, Union Electric will
continue to own and operate Callaway Plant as an operating company subsidiary of
Ameren.

     The proposed change to the Operating License does not involve a significant
hazards consideration because operation of Callaway Plant with this change would
not:

A.   Involve a significant increase in the probability or consequences of an
     accident previously evaluated.  The proposed change does not affect
     accident initiators or assumptions.  The radiological consequences of any
     accident previously evaluated remain unchanged.  The change is an
     administrative change to reflect Union Electric's status as an operating
     company subsidiary of Ameren.

B.   Create the possibility of a new or different kind of accident from any
     previously evaluated.  The proposed change does not reduce the margin of
     safety assumed in any accident analysis or affect any safety limits.  The
     change is administrative and reflects Union Electric's status as an
     operating company subsidiary of Ameren.

C.   Involve a significant reduction in a margin of safety.  The proposed change
     does not reduce the margin of safety assumed in any accident analysis or
     affect any safety limits.  The change is administrative and reflects Union
     Electric's status as an operating company subsidiary of Ameren.

     As discussed above, the proposed change is strictly administrative in
nature and has no effect on plant operations. The change does not involve a
significant increase in the probability or consequences of an accident
previously evaluated or create the possibility of a new or different kind of
accident from any previously evaluated. This change does not result in a
significant reduction in a margin of safety. Therefore, it has been determined
that the proposed change does not involve a significant hazards consideration.
<PAGE>
 
                                                                       Exhibit 4



                         ENVIRONMENTAL CONSIDERATIONS
                         ----------------------------

     This amendment application revises Union Electric Company's Facility
Operating License No. NPF-30 for Callaway Plant to add a footnote after the
words "Union Electric Company" in Paragraph 1.A. of the license to indicate that
Union Electric has entered into a merger agreement with CIPSCO Incorporated
which provides for Union Electric to become a wholly-owned operating company of
Ameren Corporation.

     The proposed amendment does not involve changes with respect to the use of
facility components located within the restricted area, as defined in 10 C.F.R.
20. It is an administrative change to revise a license condition. Union Electric
has determined that the proposed amendment does not involve:

(1)  A significant hazards consideration, as discussed in Exhibit 3 of this
     amendment application;

(2)  A significant change in the types or significant increase in the amounts of
     any effluents that may be released offsite;

(3)  A significant increase in individual or cumulative occupational radiation
     exposure.

     Accordingly, the proposed amendment meets the eligibility criteria for
categorical exclusion set forth in 10 C.F.R. 51.22(c)(9). Pursuant to 10 C.F.R.
51.22(b), no environmental impact statement or environmental assessment need be
prepared in connection with the issuance of this amendment.
<PAGE>
 
                                                                    Attachment 2
                                                                     ULNRC-03341



                       PROPOSED OPERATING LICENSE CHANGE



                           PARAGRAPH 1.A     MARKUP
<PAGE>
 
                                 UNITED STATES
                         NUCLEAR REGULATORY COMMISSION
                            WASHINGTON, D.C. 20555



                            UNION ELECTRIC COMPANY
                            ----------------------

                             DOCKET NO. STN 50-483
                             ---------------------

                           CALLAWAY PLANT UNIT NO. 1
                           -------------------------

                          FACILITY OPERATING LICENSE
                          --------------------------

                                                              License No. NPF-30


1.   The Nuclear Regulatory Commission (the Commission) has found that:

     A.   The application for license filed by Union Electric Company/*/
          (licensee), complies with the standards and requirements of the Atomic
          Energy Act of 1954, as amended (the Act), and the Commission's
          regulations set forth in 10 CFR Chapter 1, and all required
          notifications to other agencies or bodies have been duly made;

     B.   Construction of the Callaway Plant, Unit No. 1 (the facility) has been
          substantially completed in conformity with Construction Permit No.
          CPPR-139 and the application, as amended, the provisions of the Act,
          and the regulations of the Commission;

     C.   The facility will operate in conformity with the application, as
          amended, the provisions of the Act, and the regulations of the
          Commission;

     D.   There is reasonable assurance: (i) that the activities authorized by
          this operating license can be conducted without endangering the health
          and safety of the public, and (ii) that such activities will be
          conducted in compliance with the Commission's regulations set forth in
          10 CFR Chapter 1;

     E.   Union Electric Company is technically qualified to engage in the
          activities authorized by this license in accordance with the Commis-
          sion's regulations set forth in 10 CFR Chapter 1;

     F.   The licensee has satisfied the applicable provisions of 10 CFR Part
          140 "Financial Protection Requirements and Indemnity Agreements," of
          the Commission's regulations;

     G.   The issuance of this license will not be inimical to the common
          defense and security or to the health and safety of the public;


     /*/  As of the closing of the Merger contemplated by the Agreement and Plan
          of Merger, by and among Union Electric Company, CIPSCO Incorporated,
          Ameren Corporation and Arch Merger, Inc., dated August 11, 1995, Union
          Electric Company is a wholly-owned operating subsidiary of Ameren
          Corporation.
<PAGE>
 
April 24, 1996

U.S. Nuclear Regulatory Commission
Attn:  Document Control Desk
Mail Station P1-137
Washington, D.C.  20555

Gentlemen:                                              ULNRC-03370

                             DOCKET NUMBER 50-483
                                CALLAWAY PLANT
               REVISION TO FACILITY OPERATING LICENSE NO. NPF-30
               -------------------------------------------------

     Union Electric Company transmits herewith an application requesting that
the Nuclear Regulatory Commission ("NRC") consent to transfer the Facility
Operating License for Callaway Plant.

     Union Electric Company ("Union Electric") is the holder of Facility
Operating License No. NPF-30 ("the License") for Callaway Plant Unit No. 1
("Callaway"). It has entered into a merger agreement with CIPSCO Incorporated
which provides for Union Electric to become a wholly-owned operating company of
Ameren Corporation ("Ameren"), a registered public utility holding company under
the Public Utility Holding Company Act of 1935, as amended. On February 23,
1996, Union Electric filed an application to amend the License pursuant to 10
CFR 50.90. After reviewing that application, NRC staff determined that the
merger would also require a transfer of the License to reflect Union Electric's
status as a wholly-owned operating subsidiary of Ameren.

     Therefore, enclosed is an application in which Union Electric seeks consent
of the NRC to transfer the License ("the Application"), pursuant to 10 CFR
50.80, such that after the merger Union Electric will continue to own and
operate the Callaway plant as a wholly-owned operating subsidiary of Ameren.
<PAGE>
 
U.S. Nuclear Regulatory Commission
ULNRC-03370
Page 2

 
     In addition, NRC staff requested a copy of any Federal Energy Regulatory
Commission ("FERC") filings. Exhibit 5 to the Application is a copy of Union
Electric's FERC filings.

     We also request that the NRC Staff expeditiously review this submittal so
that the NRC's consent to the proposed transfer is received by December 1996 to
facilitate the completion of the merger.

     If you have any questions concerning this matter, please contact me.

                                       Very truly yours,



                                    /s/Donald F. Schnell

JMC:mas

Attachment:  1)  Application for NRC Consent to
                 Transfer License NPF-30 including
                 Exhibit 5, the FERC merger filing.
<PAGE>
 
STATE OF MISSOURI  )
                   )    SS
CITY OF ST. LOUIS  )



     Donald F. Schnell, of lawful age, being first duly sworn upon oath, says
that he is Senior Vice President-Nuclear and an officer of Union Electric
Company; that he has read the foregoing document and knows the content thereof;
that he has executed the same for and on behalf of said Company with full power
and authority to do so; and that the facts therein stated are true and correct
to the best of his knowledge, information and belief.



                                       By /s/ Donald F. Schnell
                                          ---------------------
                                          Donald F. Schnell
                                          Senior Vice President
                                          Nuclear



     SUBSCRIBED and sworn to before me this 24th day of April, 1996.



                                             Signature
                                          -----------------
                                             Notary Public
<PAGE>
 
                   APPLICATION OF UNION ELECTRIC COMPANY FOR
                 NRC CONSENT TO TRANSFER OF LICENSE NO. NPF-30
                 ---------------------------------------------

     Union Electric Company ("Union Electric") is the holder of Facility
Operating License No. NPF-30 ("License") for Callaway Plant Unit No. 1
("Callaway").  It has entered into a merger agreement with CIPSCO Incorporated
("CIPSCO") which provides for Union Electric to become a wholly-owned operating
company of Ameren Corporation ("Ameren"), a registered public utility holding
company under the Public Utility Holding Company Act of 1935, as amended.  By
this Application, Union Electric seeks an NRC order consenting to the transfer
of the License, such that after the merger Union Electric will continue to own
and operate the Callaway plant as a wholly-owned operating subsidiary of Ameren.

     On February 23, 1996, Union Electric filed an application to amend the
License pursuant to 10 CFR 50.90 ("the Original Application").  After reviewing
the Original Application, NRC staff determined that the merger would also
require a transfer of the License to reflect Union Electric's status as a
wholly-owned operating subsidiary of Ameren.  While it is true that the proposed
merger requires no change in the design or operation of Callaway, the merger
will make Union Electric a wholly-owned operating subsidiary of Ameren.
Therefore, the merger may be deemed to effect a change in the control of the
owner of Callaway, Union Electric.  Accordingly, this Application requests the
consent of the NRC under 10 CFR 50.80 for transfer of the
<PAGE>
 
License to reflect the effective change in control of the owner of Callaway,
Union Electric, as a result of the merger.

     The information required to be included in an application for transfer of a
license pursuant to 10 CFR 50.80 is contained in the Original Application, thus
the Original Application is incorporated by reference herein as if it were set
forth verbatim.  This information demonstrates that the requested consent is
consistent with applicable provisions of law, NRC regulations and NRC orders.
While antitrust information is set forth in Section V of the Original
Application, Union Electric's Federal Energy Regulatory Commission ("FERC")
filing is attached as Exhibit 5/1/ to this application to aid the NRC in
conducting the antitrust review.

     The merger requires the approval of the FERC, the Securities Exchange
Commission, the Missouri Public Service Commission, and the Illinois Commerce
Commission.  In addition, it is subject to review by the Department of Justice
or the Federal Trade Commission and the expiration of the applicable waiting
period under the Hart-Scott-Rodino Act.  The companies are working to complete
the merger in early 1997.  Therefore, Union Electric is seeking to obtain all
necessary regulatory approvals prior to that time.  Union Electric requests that
the NRC review this request for transfer of the License on a schedule that will
result in final action as promptly as possible, and in any event prior to
December 31, 1996.

- ------------
/1/ The Original Application, which as been incorporated herein by reference,
contained four exhibits.
<PAGE>
 
     All communications pertaining to this Application should be sent to:

               Joseph E. Birk
               Assistant to the Vice President
                 and General Counsel
               Union Electric Company
               P.O. Box 149 (MC 1301)
               St. Louis, MO  63166

               William B. Bobnar
               Attorney
               Union Electric Company
               P.O. Box 149  (MC 1310)
               St. Louis, MO  63166

               Alan C. Passwater
               Manager-Licensing & Fuels
               Union Electric Company
               P.O. Box 149  (MC 470)
               St. Louis, MO  63166


     Union Electric requests, for the reasons stated above, that the NRC consent
to the transfer of the License under 10 CFR 50.80 to reflect the effective
change in control of the owner of Callaway, Union Electric.  Union Electric also
requests that the NRC issue an order to effectuate said transfer.


Respectfully submitted,


UNION ELECTRIC COMPANY


By: /s/  Donald F. Schnell
    ----------------------------
     Donald F. Schnell
     Senior Vice President
     Nuclear
<PAGE>
 
cc:  T. A. Baxter, Esq.
     Shaw, Pittman, Potts & Trowbridge
     2300 N. Street, N.W.
     Washington, D.C.  20037

     M. H. Fletcher
     Professional Nuclear Consulting, Inc.
     19041 Raines Drive
     Derwood, MD  20855-2432

     L. Joe Callan
     Regional Administrator
     US Nuclear Regulatory Commission
     Region IV
     611 Ryan Plaza Drive
     Suite 400
     Arlington, TX  76011-8064

     Senior Resident Inspector
     Callaway Resident Office
     US Nuclear Regulatory Commission
     8201 NRC Road
     Steedman, MO  65077

     Kristine M. Thomas (2)
     Office of Nuclear Reactor Regulation
     US Nuclear Regulatory Commission
     1 White Flint, North, Mail Stop 13E16
     11555 Rockville Pike
     Rockville, MD  20852-2738

     Manager, Electric Department
     Missouri Public Service Commission
     P.O. Box 360
     Jefferson City, MO  65102

<PAGE>
 
                                                                     EXHIBIT E-8




                  UNION ELECTRIC COMPANY AND ITS SUBSIDIARIES
                  -------------------------------------------


UNION ELECTRIC COMPANY

    Union Electric Development Corporation, 100%

    Electric Energy, Inc., 40%



<PAGE>
 
                                                                     EXHIBIT E-9





                   CIPSCO INCORPORATED AND ITS SUBSIDIARIES
                   ----------------------------------------

CIPSCO INCORPORATED

     Central Illinois Public Service Co., 100%

          CIPS Energy, Inc., 100% (inactive)

          Illinois Steam, Inc., 100% (inactive)

          Electric Energy, Inc., 20%

     CIPSCO Investment Co., 100%

          CIPSCO Securities Co., 100%

          CIPSCO Venture Co., 100%
               Effingham Development Building II, L.L.C., 40%

          CIPSCO Leasing Co., 100%
               CLC Aircraft Leasing Co., 100%
               CIPSCO Leasing Co. A, 100%
               CIPSCO Leasing Co. B, 100%
               CIPSCO Leasing Co. C, 100%

          CIPSCO Energy Co., 100%
               CEC-PGE-G Co., 1%
               CEC-PGE-L Co., 50%
               CEC-APL-G Co., 1%
               CEC-APL-L Co., 50%
               CEC-ACE-G Co., 1%
               CEC-ACE-L Co., 99%
               CEC-PSPL-L Co., 50%
               CEC-PSPL-G Co., 1%
               CEC-ACLP Co., 24.75%
               CEC-MPS-L Co., 99%
               CEC-MPS-G Co., 1%

             

<PAGE>
 
                                                                     EXHIBIT G-1
                              AMEREN CORPORATION
                         UNAUDITED PRO FORMA COMBINED
                            FINANCIAL DATA SCHEDULE
                (Thousands of Dollars Except Per Share Amounts)
                        Six Months Ended June 30, 1996
<TABLE>
<CAPTION>
                                                                                      Pro Forma     Pro Forma
     Caption Heading                                            UE        CIPSCO     Adjustments     Combined
     ---------------                                        ----------  ----------   -----------   ----------
<C>  <S>                                                    <C>         <C>          <C>           <C>
 
 1   Total net utility plant                                $5,499,082  $1,462,022     $ 117,273   $7,078,377
 2   Other property and investments                             81,778     109,121             0      190,899
 3   Total current assets                                      516,031     212,896        38,044      766,971
 4   Total deferred charges                                     66,660      48,302        (2,660)     112,302
 5   Balancing amount for total assets                         701,612      43,339             0      744,951
 6   Total assets                                            6,865,163   1,875,680       152,657    8,893,500
 7   Common stock                                              510,619     356,812      (866,059)       1,372
 8   Capital surplus, paid in                                  717,669           0       866,059    1,583,728
 9   Retained earnings                                       1,060,716     293,135             0    1,353,851
10   Total common stockholders equity                        2,289,004     649,947             0    2,938,951
11   Preferred stock subject to mandatory redemption               598           0             0          598
12   Preferred stock not subject to mandatory redemption       218,497      80,000             0      298,497
13   Long term debt, net                                     1,746,288     464,077       130,000    2,340,365
14   Short term notes                                           70,000           0             0       70,000
15   Notes payable                                                   0           0             0            0
16   Commercial paper                                                0      38,482             0       38,482
17   Long term debt-current portion                             45,000      15,000             0       60,000
18   Preferred stock-current portion                                26           0             0           26
19   Obligations under capital leases                           78,920           0             0       78,920
20   Obligations under capital leases-current portion           31,599           0             0       31,599
21   Balancing amount for capitalization and liabilities     2,385,231     628,174        22,657    3,036,062
22   Total capitalization and liabilities                    6,865,163   1,875,680       152,657    8,893,500
23   Gross operating revenue                                   968,971     431,651        97,492    1,498,114
24   Federal and state income taxes expense                     72,865      21,294         4,048       98,207
25   Other operating expenses                                  730,706     357,019        82,121    1,169,846
26   Total operating expenses                                  803,571     378,313        86,169    1,268,053
27   Operating income (loss)                                   165,400      53,338        11,323      230,061
28   Other income (loss), net                                    2,237        (985)       (6,201)      (4,949)
29   Income before interest charges                            167,637      52,353         5,122      225,112
30   Total interest charges                                     63,550      17,389         5,122       86,061
31   Net income                                                 97,462      33,100             0      130,562
32   Preferred stock dividends                                   6,625       1,864             0        8,489
33   Earnings available for common stock                        97,462      33,100             0      130,562
34   Common stock dividends                                    127,655      35,092         8,772      171,519
35   Total annual interest charges on all bonds *                    0           0             0            0
36   Cash flow from operations                                 215,692      89,693        11,734      317,119
37   Earnings per share-primary                                  $0.95       $0.97             0        $0.95
38   Earnings per share-fully diluted                            $0.95       $0.97             0        $0.95
</TABLE>

    * Required on fiscal year-end only

<PAGE>
 
                                                                     Exhibit J-1


                           [PROPOSED FORM OF NOTICE]


SECURITIES AND EXCHANGE COMMISSION
(Release No. 35-___________)
Filings Under the Public Utility Holding Company Act of 1935 ("Act")
__________, 1996


     Notice is hereby given that the following filing has been made with the
Commission pursuant to provisions of the Act and rules promulgated thereunder.
All interested persons are referred to the application/declaration for complete
statements of the proposed transaction(s) summarized below. The
application/declaration is available for public inspection through the
Commission's Office of the Public Reference.

     Interested persons wishing to comment or request a hearing on the
application/declaration should submit their views in writing by November 15,
1996 to the Secretary, Securities and Exchange Commission, Washington, D.C.
20549, and serve a copy of the relevant application(s) and/or declaration(s) at
the address(es) specified below. Proof of service (by affidavit or, in case the
of an attorney at law, by certificates) should be filed with the request. Any
request for hearing shall identify specifically the issues of fact or law that
are disputed. A person who so requests will be notified of any hearing, if
ordered, and will receive a copy of any notice or order issued in the matter.
After said date, the application/declaration, as filed or as amended, may be
granted and/or permitted to become effective.

     Ameren Corp. ("Ameren"), a Missouri corporation, 1901 Chouteau Avenue, St.
Louis, Missouri 63103, has filed an Application/Declaration ("Application")
pursuant to Sections 4, 5, 6, 7, 8, 9, 10, 11, 12, 13 and 21 of the Act
requesting authorization and approval of the proposed combination of Union
Electric Company ("UE") and CIPSCO Inc. ("CIPSCO"), pursuant to which (i) Ameren
will acquire, by merger, all of the issued and outstanding common stock of UE
and Central Illinois Public Service Company ("CIPS"), a wholly owned utility
subsidiary of CIPSCO, and acquire indirectly 60% of the outstanding common stock
of Electric Energy, Inc., ("EEI"), and (ii) UE and CIPS will become wholly owned
subsidiaries of Ameren (the "Transaction"). Following the consummation of the
Transaction, Ameren will register as a holding company under the Act. Ameren
also requests that the Commission approve (i) the establishment of Ameren
Services Corp. ("Ameren Services") in accordance with Rule 88 under the Act and
the acquisition by Ameren of all of the outstanding voting securities of Ameren
Services; (ii) the General Services Agreement among Ameren Services, Ameren,
CIPS, and CIPSCO Investment Company (currently a wholly owned subsidiary of
CIPSCO) ("CIPSCO Investment"), which serves as a holding company for certain
nonutility investments; (iii) the issuance of Ameren Common Stock (as defined
below) in connection with the Transaction; (iv) the issuance by Ameren (and/or
the acquisition by or on behalf of Ameren in open market transactions) of up to
19 million shares of
<PAGE>
 
Ameren Common Stock, over the period ending five years after the date of the
Commission's approving order in this docket, for purposes of certain employee
benefit and dividend reinvestment plans of UE, CIPSCO, CIPS and Ameren; (v) the
solicitation of proxies from the holders of Ameren Common Stock for approvals
deemed necessary or desirable in connection with the establishment or amendment
of employee benefit plans referred to in (iv); (vi) the acquisition by Ameren of
all of the outstanding voting securities of CIPSCO Investment; (vii) the
retention by Ameren of the gas properties of UE and CIPS and the continued
operation of UE and CIPS as combination utilities; (viii) the retention by
Ameren of the nonutility activities, businesses and investments of UE and CIPSCO
Investment and the making of certain similar investments over a period ending
five years after the date of the Commission's approving order in this docket;
(ix) the continuation of all outstanding intrasystem debt and guaranties; and
(x) the transfer by UE to CIPS of the Transferred Utility Facilities (defined
below) located in Illinois.

     UE is a Missouri corporation also authorized to do business in Illinois and
is a public utility company. The principal business of UE is to provide electric
energy to customers in a 24,500 square mile area of Missouri and Illinois. UE's
Missouri electric service area includes the City of St. Louis and St. Louis
County, and all or portions of 65 other counties. Its Illinois service area
includes the cities of East St. Louis and Alton. In addition to the retail
electric business, UE serves 18 wholesale electric customers, all of which are
located in Missouri. Another business of Union Electric is to provide natural
gas service to customers in 23 Missouri counties and two Illinois counties. The
company also provides steam service in Jefferson City, Missouri.

     As of June 30, 1996, UE provided retail electric service to approximately
1,069,000 customers in Missouri and 63,000 in Illinois. UE provides natural gas
service to approximately 102,000 customers in Missouri and 18,000 customers in
Illinois. As of June 30, 1996, UE had 6,167 employees in its two-state
operations.

     There are two other interests which are held by UE and operated through
subsidiary corporations. UE is the sole stockholder of Union Electric
Development Corporation ("UEDC") (formerly known as Union Colliery), and UE owns
40 percent of the common stock of EEI. UEDC is used principally to own and
invest in energy related or civic and community development related investments
in the UE service area. EEI was formed in the early 1950s to provide electric
energy to a uranium enrichment plant located near Paducah, Kentucky. The
enrichment plant was originally operated by the Atomic Energy Commission and is
operated today by the United States Enrichment Corporation. EEI owns the Joppa
Plant, a 1,015 mW coal-fired power plant located near Joppa, Illinois, and six
161 kV transmission lines which transmit power from the Joppa Plant to the
Paducah enrichment plant. EEI's common stock is held by four utility companies:
UE, 40%; CIPS, 20%; and two unaffiliated utilities, Kentucky Utilities Company,
20%; and Illinois Power Company, 20%. EEI sells electricity to its sponsoring
utilities for resale. The uranium enrichment facility is its only end-user
customer. UE is an exempt public utility holding company pursuant to an order of
the Commission under Section 3(a)(2) of the Act.

                                       2
<PAGE>
 
     CIPSCO, incorporated under the laws of the State of Illinois in 1986, is an
exempt public utility holding company under Section 3(a)(1) of the Act. CIPSCO
owns all of the issued and outstanding common stock of CIPS. CIPS, an Illinois
corporation organized in 1902, supplies electricity and natural gas services in
a 20,000 square mile region of central and southern Illinois, rendering service
to approximately 319,000 retail electricity customers in 557 communities and
distributing natural gas to approximately 167,000 customers in 267 communities.
CIPS' utility service territory has an estimated population of 820,000 (about
seven percent of Illinois' population) and contains about 35% of the surface
area of Illinois. In addition, CIPS sells electricity in the wholesale and
interchange markets to such entities as Soyland Electric Cooperative, Illinois
Municipal Electric Agency, Wabash Valley Power Association, Inc., Mt. Carmel
Public Utility Company, individual municipal electric systems and other public-
and investor-owned electric systems. CIPS also owns 20 percent of the capital
stock of EEI. At June 30, 1996, CIPS had approximately 2,360 employees. CIPS is
an exempt holding company pursuant to Section 3(a)(2) of the Act.

     Ameren was incorporated under the laws of the State of Missouri on August
7, 1995 as Arch Holding Corp. to become a holding company for UE and CIPS
following the Transaction and for the purpose of facilitating the Transaction.
Ameren has, and prior to the consummation of the Transaction will have, no
operations other than those contemplated by the Merger Agreement to accomplish
the Transaction. The authorized capital stock of Ameren consists of 400,000
shares of common stock and 100,000 shares of preferred stock par value $.01 per
share. Upon consummation of the Transaction, Ameren will be a public utility
holding company and will own all of the issued and outstanding common stock of
UE, CIPS and CIPSCO Investment. At present, the common stock of Ameren is owned
50% by UE and 50% by CIPSCO. No shares of Ameren preferred stock have been
issued.

     Solely for the purpose of facilitating the Transaction, Arch Merger, Inc.
("Arch Merger") was incorporated under the laws of the State of Missouri on
August 5, 1995. Arch Merger has, and prior to the closing of the Transaction
will have, no operations other than the activities contemplated by the Merger
Agreement necessary to accomplish the transaction.

     Prior to the consummation of the Transaction, Ameren Services will be
incorporated in Missouri to serve as the service company for the Ameren system
after the consummation of the Transaction. Ameren Services will provide UE and
CIPS, and the other companies of the Ameren system, with a variety of
administrative, management and support services. The authorized capital stock of
Ameren Services will consist of 1,000 shares of common stock, par value $.01 per
share. Upon consummation of the Transaction, all issued and outstanding shares
of Ameren Services will be held by Ameren. Ameren Services will enter into the
General Services Agreement with Ameren, UE, CIPS and CIPSCO Investment.

                                       3
<PAGE>
 
     Under the Merger Agreement executed by CIPSCO and UE on August 11, 1995,
upon receipt of all necessary approvals, the Transaction will be consummated by
merging CIPSCO into Ameren, with Ameren as the surviving corporation, and by
merging UE with Arch Merger, with UE as the surviving corporation.

     After the Transaction is effective, Ameren will own 100% of the common
stock of two public utility subsidiaries, UE and CIPS, as well as 100% of the
common stock of CIPSCO Investment. UE will continue to own 40% of the common
stock of EEI and 100% of the common stock of UEDC. CIPS will continue to own 20%
of the common stock of EEI, and CIPSCO Investment will continue to own those
subsidiaries engaged in the unregulated nonutility investment business of
CIPSCO. Thus, EEI will be an affiliate and subsidiary of Ameren. The transaction
calls for a tax-free exchange of CIPSCO common stock. Pursuant to the Merger
Agreement, each outstanding share of CIPSCO common stock will be converted into
1.03 shares of Ameren Common Stock, par value $.01 per share ("Ameren Common
Stock"), and each outstanding share of UE common stock will be converted into
one share of Ameren Common Stock. The outstanding UE and CIPS preferred stock
will not be affected in the Transaction. Ameren is expected to have a total of
137,215,462 shares of Ameren Common Stock outstanding.

     Following consummation of the Transaction, the headquarters of Ameren will
be in St. Louis, Missouri. The headquarters of the two utility subsidiaries will
remain in their current locations, UE's in St. Louis, and CIPS' in Springfield,
Illinois. Ameren Services will maintain offices in St. Louis and Springfield.
Ameren's utility subsidiaries will serve 1,451,005 electric customers and
285,403 natural gas customers in portions of Missouri and Illinois. Pursuant to
the Merger Agreement, UE expects to transfer its retail electric and gas
distribution utility assets located in Illinois (the "Transferred Utility
Facilities") to CIPS. As a result, after consummation of the Transaction, CIPS
is expected to begin providing service to the approximately 65,000 electric
customers and 18,000 gas customers currently served by UE in Illinois.

     For the Commission, by the Division of Investment Management, pursuant to
delegated authority.


                                   Secretary

                                       4

<PAGE>
 

                                                                     EXHIBIT K-1



                            UNION ELECTRIC COMPANY
                                       &
                    CENTRAL ILLINOIS PUBLIC SERVICE COMPANY



                        ANALYSIS OF THE ECONOMIC IMPACT
                   OF A DIVESTITURE OF THE GAS OPERATIONS OF
                                  UE AND CIPS





The management and staffs of UNION ELECTRIC COMPANY (UE) and CENTRAL ILLINOIS
PUBLIC SERVICE COMPANY (CIPS) conducted this study. The objective of this study
is to identify and quantify the economic effects on shareholders and customers
of divesting UE and CIPS of their natural gas assets and businesses.




                              SEPTEMBER 19, 1996
<PAGE>
 
                               TABLE OF CONTENTS
                               -----------------
<TABLE>
<CAPTION>
                                                                PAGE
                                                                ----
<S>              <C>                                             <C>
 
SECTION I.       EXECUTIVE SUMMARY AND CONCLUSIONS                1

SECTION II.      GENERAL STUDY ASSUMPTIONS                        4

SECTION III.     NEWGAS-UE

                 A. OVERVIEW                                      6

                 B. ANALYSIS                                      7

                 C. SCHEDULE OF EXHIBITS                         14

SECTION IV.      NEWGAS-CIPS

                 A. OVERVIEW                                     31

                 B. ANALYSIS                                     32

                 C. SCHEDULE OF EXHIBITS                         39
</TABLE>
<PAGE>
 
- --------------------------------------------------------------------------------
                 SECTION I.  EXECUTIVE SUMMARY AND CONCLUSIONS
- --------------------------------------------------------------------------------

The management and staffs of Union Electric Company (UE) and Central Illinois
Public Service Company (CIPS) have conducted this "Analysis of the Economic
Impact of a Divestiture of the Gas Operations of UE and CIPS" (Study) to
determine the effects of spinning off each company's natural gas assets and
businesses into separate and distinct entities. The Study analyzes the
additional costs (from lost economies) that would be necessary to operate two
independent gas companies (called for the purpose of this Study NEWGAS-UE and
NEWGAS-CIPS), as well as any potential benefits that would accrue. All estimates
for NEWGAS-UE and NEWGAS-CIPS are based on UE and CIPS operating experience.
Where possible, estimates of the operating costs were compared to similar
investor-owned gas distribution companies in the Midwest.

The study evaluates the increased costs or "lost economies" associated with
divestiture of these business from two perspectives - shareholders and
customers. The effects on shareholders were calculated using the increased costs
caused by divestiture assuming no regulatory rate relief. The effects on
customers were calculated assuming recovery of additional costs through rate
increases.

SHAREHOLDERS
- ------------

The projected effects on the shareholders of the lost economies resulting from
the spin-off of UE's gas business into NEWGAS-UE and the spin-off of CIPS' gas
business into NEWGAS-CIPS are shown in Table I-1:

<TABLE>
<CAPTION>
=======================================================================================================
                                   TABLE I-1

                ANNUAL EFFECT OF LOST ECONOMIES ON SHAREHOLDERS
=======================================================================================================
                                                 NEWGAS-UE            NEWGAS-CIPS              TOTAL
=======================================================================================================
<S>                                             <C>                   <C>                   <C>
Lost Economies                                  $22,116,000           $36,317,000           $58,433,000
- -------------------------------------------------------------------------------------------------------
Lost Economies as a Percent of:
- -------------------------------------------------------------------------------------------------------
  Total Gas Operating Revenue                         25.19%                28.02%                26.88%
- -------------------------------------------------------------------------------------------------------
  Total Gas Operating Revenue Deductions              27.48%                30.94%                29.54%
- -------------------------------------------------------------------------------------------------------
  Gross Gas Income                                   301.47%               296.85%               298.64%
- -------------------------------------------------------------------------------------------------------
  Net Gas Income                                     424.90%               423.62%               424.18%
- -------------------------------------------------------------------------------------------------------
In the Absence of  Rate Relief:
- -------------------------------------------------------------------------------------------------------
 Return on Rate Base                                  -8.73%               -15.93%               -12.10%
- -------------------------------------------------------------------------------------------------------
 Return on Net Plant                                  -8.63%               -13.17%               -10.96%
=======================================================================================================
</TABLE>

In Table I-1, Lost Economies represents the increased costs, excluding income
taxes, to operate as a stand alone company. Total Gas Operating Revenue is the
sum of all gas revenues for the 12 months ended December 31, 1995. Total Gas
Operating Revenue 

                                       1
<PAGE>
 
Deductions include all purchased gas and gas withdrawn from storage, operation
and maintenance expenses, depreciation and taxes other than income taxes. Gross
Gas Income is the difference between Total Gas Operating Revenue and Total Gas
Operating Revenue Deductions. Net Gas Income is Gross Gas Income minus Income
Taxes. (See SECTION III.C. NEWGAS-UE Exhibit 1 and SECTION IV.C. NEWGAS-CIPS
Exhibit 1 for detailed information.)

GAS CUSTOMERS
- -------------

The projected effect on gas customers, assuming each organization is allowed
rate increases to recover lost economies and applicable income taxes, is shown
in Table I-2:

<TABLE>
<CAPTION>
============================================================================
                                   TABLE I-2

               ANNUAL EFFECT OF LOST ECONOMIES ON GAS CUSTOMERS
============================================================================
RATE REVENUE                NEWGAS-UE        NEWGAS-CIPS            TOTAL
============================================================================
<S>                       <C>               <C>                 <C>
Pre Spin-off              $ 87,814,000      $129,611,000        $217,425,000
- ----------------------------------------------------------------------------
Post Spin-off             $121,464,000      $170,293,000        $291,757,000
- ----------------------------------------------------------------------------
Dollar Increase           $ 33,650,000      $ 40,682,000        $ 74,332,000
- ----------------------------------------------------------------------------
Percent Increase                 38.32%            31.39%              34.19%
============================================================================
</TABLE>

(See SECTION III.C. NEWGAS-UE Exhibit 1 and SECTION IV.C. NEWGAS-CIPS Exhibit 1
for detailed information.)

ELECTRIC CUSTOMERS
- ------------------

In addition to the forgoing impacts, divesting the gas business would result in
rate increases of .73% for CIPS electric customers and .11% for UE electric
customers. This impact is due to each company transferring all common property
into the electric rate base, requiring rate increases to maintain the existing
rates of return.

CONCLUSIONS
- -----------

The economies that CIPS and UE realize from combined electric and gas operations
provide significant benefits to customers and shareholders. This Study
demonstrates that spinning off either gas division into a separate entity would
be inefficient due to lost economies, which would be passed on to gas customers,
electric customers and/or to shareholders. Without increased rates, the
immediate negative effect on shareholders' earnings would be substantial, making
ownership of shares in the NEWGAS companies unattractive.

The pass-through of increased costs to customers would cause significant
increases in gas rates, with no increase in the level or quality of service. The
rate increases required to operate the NEWGAS companies would total about
$74,332,000 (Table I-2). Such

                                       2
<PAGE>
 
increases would make the NEWGAS companies less competitive at a time when
competition in the energy industry is rapidly increasing due to Federal Energy
Regulatory Commission (FERC) Order 636 and other FERC and state regulatory
initiatives. In addition, the NEWGAS companies would receive none of the
benefits expected to accrue from the proposed merger.

It is estimated there would be no substantial benefits from the divestiture of
the gas businesses for electric customers. Minimal savings could be achieved for
items such as data processing costs, and minimal personnel reductions could
occur in the combination gas and electric districts. These savings would be
offset by additional costs such as changing meter reading routes and modifying
data processing applications.

                                       3
<PAGE>
 
================================================================================
                    SECTION II.  GENERAL STUDY ASSUMPTIONS
================================================================================

The assumptions, information and data utilized for this Study are based on the
industry expertise and experience of the management and staffs of UE and CIPS.
Below are the major assumptions employed for this Study:

1. ORGANIZATION: Each of the organizations to be spun off would operate as an
   independent, stand-alone, publicly held, regulated company. Each would have
   all the necessary management personnel, along with facilities, equipment,
   materials, supplies, etc., required to operate as a stand-alone company.

2. SYSTEM OPERATION & MAINTENANCE: The gas and electric systems would continue
   to be operated and administered in the existing manner to insure safe and
   reliable service. In addition, current system renewal programs would be
   continued.

3. STAFFING: A sufficient number of employees would be included within each 
   spun-off company to ensure that customers receive the present level and
   quality of service.

4. LABOR COSTS: Labor cost estimates were based upon assessments of work
   assignments, using UE and CIPS wage structures. Senior management salary
   estimates were based on industry averages.

5. NON-LABOR COSTS: These costs were estimated based upon actual costs incurred
   by UE and CIPS for their gas businesses assuming the customers of NEWGAS-UE
   and NEWGAS-CIPS would receive existing levels and quality of service.

6. COST PASS-THROUGH: Full pass-through to customers of increased costs due to
   lost economies would be allowed in formal rate proceedings.

7. SPECIFIC LABOR ASSUMPTIONS:

   a)  Organization size and spans of control were estimated using existing UE
       and CIPS structures, adjusted to recognize the broader functional
       responsibilities that would exist in smaller companies.
   b)  Pensions and benefits were estimated as a percent of direct labor cost. 
   c)  Employee benefits would be similar to the combined companies.

8. CAPITAL EXPENDITURE AND COST ASSUMPTIONS:

   a)  The accounting for direct and indirect capital expenditures would remain
       the same as that currently used in the combined utilities.
   b)  The actual capital costs for the divested companies would be considerably
       higher than those of UE and CIPS. Since gas purchases are highly
       seasonal, the stand alone gas companies would experience great volatility
       in their cash positions. At

                                       4
<PAGE>
 
      the same time the book values of the assets of these stand alone gas
      companies would be much smaller than those of the combined utility
      predecessors. As a result, the new companies would be perceived as riskier
      and would be subject to higher borrowing rates. Because of the constraints
      of the CIPS and UE mortgage indentures, the debt associated with the spun-
      off facilities would have to be refinanced at today's rates.

9. TRANSITION COST ASSUMPTIONS: Costs such as the legal, investment banking,
   filing and printing fees associated with the public spin-off of stock,
   creation of new indenture agreements, negotiation of new service contracts
   and costs to establish business processes would be incurred and amortized
   appropriately.

10. TRANSACTIONS BETWEEN COMPANIES: All transactions and transfers between
    NEWGAS-UE and UE, and between NEWGAS-CIPS and CIPS, would be arms-length
    transactions based upon fair market values.

11. OTHER ASSUMPTIONS:
    a)  Facility costs would include separate headquarters, storerooms, and
        office space for employees currently using facilities shared by the
        electric and gas businesses.
    b)  To facilitate the assessment of financial effects, it was assumed the
        costs for outsourcing and performing work in-house would be comparable.
    c)  Information Services work would be outsourced.
    d)  Additional equipment (i.e., vehicles, trenchers, heavy power operated
        equipment) would be leased under an operating lease.
    e)  External auditing costs were estimated based on industry surveys.
    f)  Insurance costs were quotes based on protecting the gas utility against
        losses and damages to leased properties used in its operations, as well
        as injuries and damage claims.
    g)  Regulatory commission expenses would be similar to those currently
        incurred in connection with formal cases before regulatory commissions
        involving gas operations.
    h)  Potential costs for clean-up of environmental sites (coal gasification
        plants) would be the same whether or not the gas businesses are spun
        off. For this reason such costs were not considered in this Study.

                                       5
<PAGE>
 
- --------------------------------------------------------------------------------
                      SECTION III.A.  NEWGAS-UE OVERVIEW
- --------------------------------------------------------------------------------

Spinning off UE's gas operations into a separate stand-alone company (NEWGAS-UE)
would result in the following:

 . NEWGAS-UE would need to establish service functions duplicating those at UE,
  including treasury, financial planning, accounting, tax planning and
  compliance, rates, risk management, employee benefits, marketing, legal,
  customer service, regulatory and public affairs.

 . Annual operating revenue deductions, exclusive of income taxes, for NEWGAS-UE
  would be about 27% ($22.1 million) greater than UE's gas operating revenue
  deductions. (SECTION III.C, Exhibit 1).

 . NEWGAS-UE's customers would experience a rate increase of about 38% ($33.7
  million) in order to provide a 11.15% rate of return for stockholders (SECTION
  III.C, Exhibit 1).

 . NEWGAS-UE would be at a competitive disadvantage because of high operating
  expenses.

 . There would be no substantial benefits for customers or stockholders.

                                       6
<PAGE>
 
- --------------------------------------------------------------------------------
                      SECTION III.B.  NEWGAS-UE ANALYSIS
- --------------------------------------------------------------------------------

The UE gas distribution system serves approximately 121,000 (as of December 31,
1995) customers over a 3,000 square mile area in Missouri and Illinois. There
are 2,578 miles of mains and 1,634 miles of service lines in the system. Natural
gas revenues for 1995 were $87.8 million on system throughput of 16.4 billion
cubic feet of gas.

UE operates as a tightly integrated company with many employees supporting both
gas and electric operations. Of UE's 6,190 employees (as of December 31, 1995),
only 143 devote 100% of their time to gas operations. Shared operations include
customer service personnel who deal with service requests for both gas and
electric customers, and meter readers who read both the electric and gas meters.
Additionally, UE provides the gas division's required services in the areas of
treasury, financial planning, accounting, tax planning and compliance, rates,
risk management, employee benefits, marketing, legal, customer service,
regulatory and public affairs. The shared gas/electric responsibilities of many
of UE's employees have enabled UE to provide quality service at a low cost.

ORGANIZATION STRUCTURE AND STAFFING IMPACT
- ------------------------------------------

The UE organization as of December 31, 1995, was used as a pattern for
developing the NEWGAS-UE organization structure. See SECTION III.C, Exhibit 5
for the proposed organization. Divesting the gas operations would eliminate the
effective use of SHARED STAFF to the detriment of both the gas and electric
operations. To operate the gas business on a stand-alone basis, 312 additional
employees would be required, in addition to the 143 employees mentioned above.
UE could expect very minimal staffing reductions in the electric business as a
result of a gas divestiture. SECTION III.C, Exhibit 6 shows the proposed
staffing, salaries, and wages summary, while Exhibit 2d shows that NEWGAS-UE
would incur an estimated net labor increase, including benefits, of $7,732,000.
Exhibit 7 shows that with this proposed staffing, NEWGAS-UE compares favorably
with other gas utilities in the number of customers per employee. The following
comments demonstrate some of the reasons for additional staffing:

     UE's customers receive one bill for both gas and electric service and pay
     with one check. When treasury personnel process the checks, automated
     equipment posts both electric and gas payments to customers' accounts.
     NEWGAS-UE would have to hire staff to handle gas payments that are now
     handled at essentially no additional cost by UE. Spinning off the gas
     operations would only minimally reduce the workload on UE's cash processing
     personnel, since most gas customers also have electric service and would
     still send a check monthly.

     UE's meter readers read gas and electric meters in the same routes. NEWGAS-
     UE would have to hire meter readers to re-trace the same routes to read the
     gas meters.

                                       7
<PAGE>
 
     Spinning off the gas operations would not reduce the number of meter
     readers needed by UE since their routes would remain essentially the same.

     UE's Finance, Accounting and Corporate Services personnel maintain the
     books of the Company and arrange for insurance. They arrange for long-term
     financing and borrow short-term funds for operations. They maintain
     stockholder records and perform various investor services. NEWGAS-UE would
     require personnel to provide the same services. Spinning off the gas
     operations would not provide any measurable savings for UE in the finance
     and accounting area, since all the existing books and records of the
     Company would remain essentially unchanged, insurance needs would be
     similar, and staff time devoted to financing activities would not be
     significantly reduced.

     UE's Human Resources Division administers benefit and salary plans. NEWGAS-
     UE would need to hire personnel to perform the same duties. Spinning off
     the gas operations would not provide substantial savings to UE, because
     each of UE's existing benefit and salary plans, and the associated
     reporting requirements, would remain.

     UE's Supply Service Division provides materials, supplies, transportation
     equipment, etc. to operating divisions. NEWGAS-UE would need to hire
     personnel to perform the same duties for gas operations. Spinning off the
     gas operations would reduce the number of purchase orders handled by UE as
     well as the amount of material handled and storage costs. However, the
     quantities involved are a small percentage of the total, so few, if any,
     staffing reductions could be effected and no facilities could be
     eliminated, making the actual savings for UE minimal.

     UE's engineering staff provides engineering expertise to operating
     divisions. NEWGAS-UE would need to hire personnel to perform the same
     duties. Spinning off the gas operations would reduce the workload on UE
     engineering personnel, but since gas operations analysis is a small
     percentage of their work, spread over a geographically dispersed area, UE
     would not be able to eliminate any engineering positions.

     UE's legal staff provides legal, regulatory and claims services for UE's
     operating divisions. NEWGAS-UE would need to hire personnel to perform the
     same duties. Since many legal issues are not divided into gas and electric
     considerations, the amount of work performed by UE's legal department would
     not decrease significantly, and there would be no staffing reductions.

                                       8
<PAGE>
 
INDEPENDENT ACCOUNTANT IMPACT
- -----------------------------

UE hires independent accountants to audit the financial statements of the
Company. NEWGAS-UE would need to hire independent accountants to perform the
same duties. UE would not achieve any savings, since the existing level of work
for the independent accountants would remain the same.

INFORMATION TECHNOLOGY IMPACT
- -----------------------------

UE provides extensive information technology assistance to its operating and
support divisions. NEWGAS-UE would need to provide the same assistance to its
divisions. Hardware costs are reflective of the quantity of information to be
processed, so NEWGAS-UE's hardware and telecommunications costs would be
substantially less than UE's. Software costs are generally less dependent on
quantity and more dependent on function, so NEWGAS-UE's software costs would be
similar to UE's. See SECTION III. C, Exhibit 2b, which identifies a net increase
in cost for information services of $11,291,000.

Divesting the gas operations would eliminate opportunities for sharing
information technology resources to the detriment of both the gas and electric
operations:

     NEWGAS-UE would be subject to the same regulatory accounting requirements
     as UE, so similar general ledger, payroll distribution, fixed asset and
     other accounting systems would be needed. It is estimated that the required
     software would be similar to UE's and would cost about $4.8 million. UE
     would retain all existing software, resulting in no software savings and UE
     would expend considerable resources changing accounting systems to reflect
     the divestiture of the gas business.

     UE operates an integrated material management, purchasing and accounts
     payable system. The system provides ordering, purchasing, tracking,
     receiving, paying and inventory control functions. To maintain existing
     levels of customer service, NEWGAS-UE would need a similar integrated
     system, which would cost about $2.4 million. UE would require slightly less
     data storage, producing negligible savings. There would be no software
     savings since UE would require all existing software.

     UE's investor services system handles stockholder and bondholder service
     requests, makes dividend and bond payments and keeps track of unclaimed
     checks and correspondence. NEWGAS-UE would need a system with similar
     capabilities to maintain the current level of service to stockholders and
     bondholders. Such a

                                       9
<PAGE>
 
     system would cost about $450,000. UE would retain the same number of
     stockholders and bondholders, resulting in no savings.

     UE's customer information system is extensively integrated with numerous
     other systems, providing seamless flow of information and efficient
     processing of customer service requests, payments and data updates. When
     customers call, the system retrieves information and presents it to the
     call-taker, requiring customers to spend less time on the line. The system
     automatically handles customers' payments made by mail, electronically, at
     pay stations or banks, or by charitable and government organizations. It
     provides a multitude of services such as budget billing, installment
     financing payments, combined billing for electric and gas, preferred pay
     dates, etc. NEWGAS-UE would require a similar system to maintain the
     current level of service to customers. Recently installed utility billing
     systems have cost $25 - $50 million. Scaling down might be possible for a
     small utility, making the estimated cost about $20 million. Since there
     would be fewer customer records to process, UE would require less data
     storage, postage, forms, etc., saving about $180,000 annually. UE would
     expend considerable resources to final bill existing combination
     gas/electric customers and re-establish the electric accounts.

     UE maintains a distribution operations job management system that receives
     and tracks customer requests for service or work, maintains the status of
     jobs for customer inquiries, automatically bills the customer for work
     completed and provides accurate accounting and work order control. NEWGAS-
     UE would need a similar system, costing about $4,000,000, to maintain
     current levels of customer service. UE would no longer process gas
     customers but data storage savings would be insignificant.

     UE maintains pension management software that provides valuation of the
     retirement plan for accounting purposes, maintains records of retirees,
     accumulates information for active employees for pension calculations and
     interfaces with payroll systems to maintain accurate information. NEWGAS-UE
     would need a similar system, costing about $100,000, to maintain current
     levels of benefits to employees. The assumed reduction of about 143
     employees who perform only gas related work would have a minimal effect on
     UE's data storage requirements, providing insignificant savings.

     UE maintains a sophisticated human resources, payroll, scheduling, time
     entry and absence tracking system. The system provides scheduling for time
     worked, vacation and other allowed time. It tracks absences and
     automatically updates records and restores sick leave bank balances. It
     provides distributed entry of time worked and the associated accounting.
     The system provides for the reporting of

                                      10
<PAGE>
 
     information to government, regulatory and other agencies. NEWGAS-UE would
     need a similar system. UE's system cost more than $6 million to develop.
     Since the UE system includes processes required only for electric
     generating plant operations, NEWGAS-UE could use simpler software,
     estimated at about $4,000,000. Processing 143 fewer employees would provide
     insignificant savings for UE.

     UE Information Technology personnel maintain the above systems. To maintain
     similar systems, it is estimated NEWGAS-UE would expend about $2,150,000
     annually. NEWGAS-UE software maintenance would cost about three-fourth's of
     UE's cost since some systems would not exist in a gas-only company. Because
     all of the existing systems would remain, UE would achieve no maintenance
     savings by spinning off the gas operations.

     UE maintains communications networks, telephone services, radio systems,
     etc. To maintain similar systems, NEWGAS-UE would need personnel and
     equipment costing about $2,380,000 annually. Due to fewer employees and
     locations, NEWGAS-UE would spend an amount estimated at 10 percent of UE's
     costs. UE would achieve minimal savings because the number of locations
     would remain the same, although slightly less equipment (e.g. telephones)
     would be needed because there would be a few less employees at some
     locations.

     UE maintains a data center to serve all of the above systems. To operate
     similar systems, NEWGAS-UE would need a similar data center, costing about
     $3,700,000 annually. There would be no equipment or manpower savings for
     UE, since all existing systems would remain.

INSURANCE COSTS
- ---------------

UE obtains property, liability, directors and officers, workers compensation and
other insurance. NEWGAS-UE would require similar policies, at similar costs. See
SECTION III.C, Exhibit 2c, which shows an estimated increase in insurance cost
of $342,000 to NEWGAS-UE. Since all coverages would remain in effect, UE would
experience no savings for insurance.

OFFICE AND CREW FACILITIES COSTS
- --------------------------------

UE maintains combined electric and gas office and crew facilities at several
locations. NEWGAS-UE would need facilities for office and crew personnel at each
of the existing combined electric/gas locations. See SECTION III.C, Exhibit 2e,
which identifies $1,062,347 in additional office and crew facilities costs.
Since UE would still operate the

                                      11
<PAGE>
 
electric system, the existing office and crew facilities would still be needed
at each location.

TRANSPORTATION AND MOTORIZED EQUIPMENT COSTS
- --------------------------------------------

UE maintains transportation and motorized equipment used by both gas and
electric crew and support personnel. NEWGAS-UE would need to obtain similar
equipment for gas operations. NEWGAS-UE's additional transportation cost would
be about $375,590 as identified in SECTION III.C, Exhibit 2g. Since vehicle
needs correlate closely with personnel needs, it is estimated that the reduction
in equipment to be achieved by UE would equal the additional equipment required
by NEWGAS-UE, except for vehicles used by meter readers to read both electric
and gas meters. UE would still need about the same number of meter reader
vehicles currently used in the combination gas and electric districts, but the
costs currently allocated to the gas business would be absorbed by the electric
customers, resulting in increased annual meter reading vehicle costs to UE of
about $38,297.

TRANSITION COSTS
- ----------------

The divestiture of the gas operations of UE and the creation of a stand-alone
gas company would be a complex legal and financial transaction that would
involve substantial transition costs. These costs would include legal and
financial advising fees, and the services of independent accountants, actuaries
and other consultants. Real estate services would be needed to procure
facilities. Several hundred personnel would have to be hired and trained.
Benefit plans would need to be established. The estimated transition costs of
$11,031,000 for NEWGAS-UE were developed by calculating the average of such
costs incurred in several other publicly reported business spin-offs. See
SECTION III.C, Exhibit 2f.

COST OF CAPITAL
- ---------------

The effective cost of capital for the stand-alone gas business was based upon
capitalization ratios of UE's capital structure as of December 31, 1995, and
estimated current costs of debt and equity, which average about 11.15%. See
SECTION III.C, Exhibit 4 for detailed information.

CONCLUSION
- ----------

The Study concludes that a separate gas distribution company would require 455
full-time employees, an increase of approximately 218% over the number of
employees currently devoted to UE gas operations full-time. Based upon the
assumptions set forth in SECTION II and the staffing requirements of the
organizational structure, increased

                                      12
<PAGE>
 
annual costs (excluding Federal and State income taxes) for NEWGAS-UE are
projected to be $22,116,000.

The exhibits (SECTION III.C) that follow show the economic effects of operating
UE's gas division as a separate entity.

                                      13
<PAGE>
 
================================================================================
                SECTION III.C.  NEWGAS-UE SCHEDULE OF EXHIBITS
================================================================================

<TABLE>
<CAPTION>
        EXHIBIT NO.                             EXHIBIT TITLE
- --------------------------------------------------------------------------------
<S>                          <C>
             1               Income Statement, Proforma Adjustments & Revenue
                             Requirement

             2               Estimated Additional Operating Expenses

            2a               Estimated External Audit Fees Based on Survey Data

            2b               Estimated Information Services Costs

            2c               Estimated Increased Cost of Insurance Coverage

            2d               Estimated Net Labor Increase, Including Benefits

            2e               Estimated Operating Lease Facilities and Furniture
                             Costs

            2f               Estimated Transition Costs

            2g               Estimated Net Increase in Transportation &
                             Motorized Equipment Expense

             3               Rate Base

             4               Cost of Capital

             5               Corporate Structure

             6               Salaries and Wages Summary

             7               Comparable Investor Owned Gas Companies (Customers
                             Per Employee Ratios)

             8               Estimated Executive Salaries

             9               UE's Electric Rate Base & Rate of Return
</TABLE>

                                      14
<PAGE>
 
                                                             NEWGAS-UE EXHIBIT 1

                          NEWGAS-UE INCOME STATEMENT
                  PROFORMA ADJUSTMENTS & REVENUE REQUIREMENT
                           (In Thousands of Dollars)

<TABLE>
<CAPTION>
                                      Existing
                                       UE Gas
                                       Company                                                 Revenue
                                     Year Ending          Proforma            Proformed       Requirement
                                       12/31/95        Adjustments (1)        NEWGAS-UE       Increase (2)
                                     ===========       ================       =========       ============
<S>                                 <C>               <C>                    <C>              <C>
                                                                                         
Operating Revenue:                    $ 87,814              $   -             $ 87,814        $121,464
                                                                                         
Operating Revenue Deductions:                                                            
  Purchased Gas                       $ 47,189                                $ 47,189        $ 47,189
  Gas Withdrawn From Storage          $  4,062                                $  4,062        $  4,062
  O & M                               $ 16,822              $21,713           $ 38,535        $ 38,535
  Depreciation                        $  4,722                                $  4,722        $  4,722
  Taxes Other Than Income             $  7,683              $   403           $  8,086        $  8,086
                                      --------              -------           --------        --------
                                                                                         
Total Operating Revenue Deductions    $ 80,478              $22,116           $102,594        $102,594
                                      --------              -------           --------        --------
                                                                                         
Gross Gas Income                      $  7,336                                $(14,780)       $ 18,870
                                                                                         
Federal & State Income Taxes (3)      $  2,131                                $ (4,286)       $  5,472
                                      --------                                --------        --------
                                                                                         
Net Gas Income                        $  5,205                                $(10,494)       $ 13,398
                                      ========                                ========        ========
                                                                                         
Rate Base (4)                         $124,816                                $120,161        $120,161
                                      ========                                ========        ========
                                                                                         
Indicated Rate of Return                  4.17%                                  -8.73%          11.15%(5)
                                      ========                                ========        ========
</TABLE> 

(1)  See Exhibit 2 for a detailed summary of proforma adjustments.

(2)  An increase of $33,650,000 or 38.32% in Revenue is required to achieve a
rate of return of 11.15%. For the purposes of this Study, gross receipts taxes
were not considered since both the resulting revenue and taxes (revenue
deduction) would nullify any impact from this calculation.

(3)  For twelve months ended 12/31/95, UE's effective Federal & State Income
Taxes were 29.0% of gross gas income. This effective tax rate was used to
calculate taxes for the Proformed NEWGAS-UE and Revenue Requirement Increase
columns.

(4)  See Exhibit 3.

(5)  The effective rate of return is assumed to be the weighted cost of capital
per Exhibit 4.

                                      15
<PAGE>
 
                                                             NEWGAS-UE EXHIBIT 2

                                  NEW GAS-UE
                    ESTIMATED ADDITIONAL OPERATING EXPENSES
                             PROFORMA ADJUSTMENTS
                           (In Thousands of Dollars)

<TABLE>
<CAPTION>
                                                    Exhibit
                                                   Reference
                                                     Number    Amount
                                                   =========  ========
<S>                                               <C>        <C>
External Auditing Costs                               2a      $   210
Information Services (Outsourced)                     2b      $11,291
Insurance Premiums                                    2c      $   342
Labor & Benefits                                      2d      $ 7,732
Leased Facilities/Furniture                           2e      $ 1,062
Transition Costs (Amortized)                          2f      $ 1,103
Transportation & Work equipment                       2g      $   376
                                                              -------
  Total Additional Expenses                                   $22,116

Less:  FICA and Unemployment Insurance                2d      $   403
                                                              -------

TOTAL ADDITIONAL O & M EXPENSES                               $21,713
                                                              =======
</TABLE>

                                      16
<PAGE>
 
                                                            NEWGAS-UE EXHIBIT 2a
                       NEWGAS-UE EXTERNAL AUDITOR COSTS
              ESTIMATED EXTERNAL AUDIT FEES BASED ON SURVEY DATA
                              PROFORMA ADJUSTMENT

<TABLE>
<CAPTION>
<S>                                                                              <C>

                    Surveys comparing External Audit Fees                          Amount
                    =====================================                         ========
Average fee for Utility companies with less than 300,000 Customers in 1994        $191,000
Average fee for Peer Group comparison with less than 300,000 Customers in 1994    $188,000

                                                                                  --------
                    Average of External Audit Fee Surveys                         $189,500


      Average Audit Fee for Pension Plans with less than 5,000 employees          $ 38,693
                                                                                  --------

               Total Estimated Annual Audit Fees for NEWGAS-UE                    $228,193

Less:  External Audit Fees Allocated to Gas operations in 1995                    $ 18,000
                                                                                  --------

            Net Estimated Annual Audit Fees Increase for NEWGAS-UE                $210,193
                                                                                  ========
</TABLE>

Sources:  Illinois Power Audit Fee Peer Group Comparison - 1994
          American Gas Association/Edison Electric Institute External Audit
          Fees - October 1995

                                      17
<PAGE>
 
                                                            NEWGAS-UE EXHIBIT 2b

                        NEWGAS-UE INFORMATION SERVICES
                     ESTIMATED INFORMATION SERVICES COSTS
                              PROFORMA ADJUSTMENT
                           (In Thousands of Dollars)

<TABLE>
<CAPTION>
<S>                                                                   <C>
                     Software Application Costs:                        Amount
                     ===========================                       ========
 
General Ledger/Capital Projects/Asset Management/Accounts Payable      $ 4,800
Payroll Distribution                                                   $   250
Investor Services                                                      $   450
Customer Information System (CIS)                                      $20,000
Computer Telephone Integration System (CTI)                            $ 1,000
Distribution Operating Job Management (DOJM)                           $ 4,000
Materials Management Information System (MMIS)                         $ 2,400
Pension Manager                                                        $   100
Payroll/Human Resource System                                          $ 3,000
Time Reporting                                                         $ 1,000
Miscellaneous                                                          $ 1,500
                                                                       -------
                 Total Software Application Costs                      $38,500
                                                                       -------

                         Annual System Operating Costs
                         -----------------------------
Data Processing                                                        $ 3,700
Software Maintenance and Support                                       $ 2,153
Telecommunciations                                                     $ 2,380
                                                                       -------
                 Total Annual System Operating Costs                   $ 8,233
                                                                       -------


               Estimated Cost to Outsource Information Services
               ------------------------------------------------
Annualized Software Application Costs (10 year amortization)           $ 3,850
Total Annual System Operating Costs                                    $ 8,233
                                                                       -------
         Total Annual Cost to Outsource Information Services           $12,083

Less:  Information Services Expenses Allocated to Gas Operations 
       in 1995                                                         $   792
                                                                       -------

            Net Increase in Cost for Information Services              $11,291
                                                                       =======
</TABLE>

                                      18
<PAGE>
 
                                                            NEWGAS-UE EXHIBIT 2c


                                   NEWGAS-UE
                ESTIMATED INCREASED COST OF INSURANCE COVERAGE
                              PROFORMA ADJUSTMENT

<TABLE>
<CAPTION>
                                                                                Estimated
                                   Limits                                      Stand Alone       Net Increase to
         Coverage                (Millions)           Deductible               Premium Cost         NEWGAS-UE
- --------------------------       ----------           -----------              ------------      ---------------
<S>                               <C>                  <C>                      <C>              <C>  
Property                          $   5                $   250,000              $   21,000
General Liability                 $  60                $   250,000              $  213,000
Auto Liability                    $   1                $        -               $   50,000
Directors & Officers Liability    $  10                $   250,000              $   75,000
Workers Compensation              Statutory            $   350,000              $   61,000
Fiduciary Liability               $   5                $     5,000              $   10,000
Crime (Fidelity)                  $   5                $     5,000              $   10,000
                                                                                ----------
      Total NEWGAS-UE Premium                                                   $  440,000

Less: 1995 Insurance Cost Allocated to UE Gas Operations                        $   98,000
                                                                                ----------
    Net Increase in Insurance Costs for NEWGAS-UE                                                $      342,000
                                                                                                 ==============
</TABLE> 

Source:  Premiums are based on estimated cost quotations obtained by UE
         Secretary's Department, Insurance Division.

                                      19
<PAGE>
 
                                                        NEWGAS-GAS UE EXHIBIT 2d
                                   NEWGAS-UE
               ESTIMATED NET LABOR INCREASE, INCLUDING BENEFITS
                              PROFORMA ADJUSTMENT
                           (In Thousands of Dollars)

<TABLE> 
<S>                                                           <C>      <C>           <C>  
Total Estimated Salaries and Wages for NEWGAS-UE (Exhibit 6)  $ 21,776

 Less: Amount for Construction & Removals (31.3%)-(1)         $  6,816
                                                              --------

Total Estimated NEWGAS-UE Salaries & Wages Charged to O & M            $ 14,960

 Less: 1995 UE Gas Salaries & Wages Charged to O & M                   $  9,515
                                                                       --------

Increase in NEWGAS-UE Salaries & Wages Charged to O & M                              $  5,445

Benefits (2):
 Employee Life, Hospitalization, savings plans, etc.                   $  1,198
 Pension Plan                                                          $    495
 FICA & Unemployment Insurance                                         $    403
 Other                                                                 $    191
                                                                       --------
                Total Benefits                                                       $  2,287
                                                                                     --------

NEWGAS-UE Net Labor Increase, Including Benefits                                     $  7,732
                                                                                     ========
</TABLE>

(1)  Amount of labor allocated to construction and removal is based on the
actual amount spent by UE in 1995.

(2)  Benefit costs were estimated base upon the cost (as a percentage of
payroll) currently budgeted by UE:

<TABLE> 
     <S>                                                                  <C> 
     Life, Hospitalization, savings plans, post employment benefit, etc.  22.00%
     Pension Plan                                                          9.10%
     FICA & Unemployment Insurance                                         7.40%
     Other                                                                 3.50%
                                                                          -----
                Total                                                     42.00%
                                                                          ===== 
</TABLE> 
                                      20
<PAGE>
 
                                                            NEWGAS-UE EXHIBIT 2e
                                   NEWGAS-UE
           ESTIMATED OPERATING LEASE FACILITIES AND FURNITURE COSTS
                              PROFORMA ADJUSTMENT

<TABLE>
<CAPTION>
                           -----------------------------------------------------------
                                             Office Space Calculation
                           -----------------------------------------------------------
                           Management    Office Space                                    ------   ------------
                             & Staff       Needs in          Cost Per        Total       Works    Total Leased
                            Employee     Square Feet       Square Foot    Office Space   Hqtrs.    Facilities
                              Count          (1)               (2)            Cost        (3)         Cost
                           -----------------------------------------------------------   ------   ------------
<S>                       <C>           <C>               <C>             <C>            <C>      <C>
General Office:
  Jefferson City, Mo.          207         63,756             $8.00         $510,048         -      $  510,048

Southeast District (MO):
  Cape Girardeau                13          4,004             $6.00         $ 24,024     $38,400
  Chaffee                        0            -                             $    -       $17,000
  Dexter                         0            -                             $    -       $38,400
                                                                                         -------
     Total                                                                                          $  117,824

Alton District (IL):            10          3,080             $9.00         $ 27,720     $38,400    $   66,120

Wentzville District (MO):
  Louisiana                      9          2,772             $5.50         $ 15,246     $17,000
  Troy                           0            -                             $    -       $17,000
                                                                                         -------
     Total                                                                                          $   49,246

Little Dixie District (MO):
  Boonville                      0            -                             $    -       $17,000
  Centralia                      0            -                             $    -       $17,000
  Columbia                      17          5,236             $9.00         $ 47,124     $   -
  Mexico                         0            -                             $    -       $38,400
  Moberly                        0            -                             $    -       $38,400
                                                                                         -------
     Total                                                                                          $  157,924

Capital District (MO):
  Jefferson City                12          3,696             $8.00         $ 29,568     $38,400
  Versailles                     0            -                             $    -       $17,000
                                                                                         -------
     Total                                                                                          $   84,968

Estimated Office Furniture Operating Lease Expense For All Areas:                                   $  259,000
                                                                                                    ----------

NEWGAS-UE FACILITIES - GRAND TOTAL                                                                  $1,245,130

             Less:  Current allocated costs for gas facilities                                      $  182,783
                                                                                                    ----------

NET NEWGAS-UE FACILITIES COST:                                                                      $1,062,347
                                                                                                    ==========
</TABLE>

(1)  An average of 308 square feet per employee was used based on past Company
experience.

(2)  Information from UE's Real Estate Department found the cost per square foot
per annum averaged $5.50 in Louisiana, $6 in Cape Girardeau, $8 in Jefferson
City, and $9 in Alton and Columbia.

(3)  This includes space for construction and service supervision, staff,
materials and supplies, and vehicles and equipment. Annual lease costs were
based on actual appraised values of utility facilities capable of accommodating
applicable staff, materials & equipment. Columbia is the only city having a UE
headquarters facility already dedicated to gas operations.

                                      21
<PAGE>
 
                                                            NEWGAS-UE EXHIBIT 2f

                     NEWGAS-UE ESTIMATED TRANSITION COSTS
                              PROFORMA ADJUSTMENT


Transition costs required to establish a new corporation would include the
following:
           Legal fees 
           Financial advisory fees 
           Consulting services of independent accountants, actuaries, and others
           Real estate services for acquisitions
           Hiring and training costs to staff newly created positions
           Benefit plans established 
           Data Conversion

          
Transition costs for NEWGAS-UE were estimated based upon an average of the
following published transition costs for other corporate spin-offs:
                                                                                
<TABLE>
<CAPTION>
                                                             Transition
       Original Corporation         Spin-off Company         Costs(000)
       --------------------         ----------------         ----------
<S>                                 <C>                      <C>
Baxter International                Caremark                 $   13,300
Adolph Coors                        ACX Technologies         $    7,200
Dial Corporation                    GFC Financial            $   13,000        
Union Carbide                       Praxair                  $   11,000
Ryder                               Avial                    $    9,000
Price Costco                        Price Enterprises        $   15,250
Humana                              Galen                    $   15,000
Honeywell                           Aliant                   $    4,500

                                                             ----------
            Average Transition Costs of the Above Companies  $   11,031
                                                             ----------

Annual amortization of Transition Costs for NEWGAS-UE (10%)  $    1,103
                                                             ==========
</TABLE> 

Source: Transition costs reported in SEC Form 10-K filings.

                                      22
<PAGE>
 
                                                            NEWGAS-UE EXHIBIT 2g

                                   NEWGAS-UE
    ESTIMATED NET INCREASE IN TRANSPORTATION & MOTORIZED EQUIPMENT EXPENSE
                              PROFORMA AJDUSTMENT

<TABLE> 
<CAPTION> 
                                                    General Office(GO)\Pool     Southeast District          Alton District
                                                    -----------------------    --------------------      --------------------
                                        Rate Per                Est. Annual              Est. Annual               Est. Annual
        Description                      Month        Number       Cost        Number       Cost         Number       Cost
- ------------------------------------------------------------------------------------------------------------------------------
<S>                                     <C>           <C>       <C>            <C>       <C>             <C>       <C> 
GO\Pool Vehicles - Standard               $470          6         $33,840
- ------------------------------------------------------------------------------------------------------------------------------
GO\Pool Vehicles - Compact                $442          6         $31,824
- ------------------------------------------------------------------------------------------------------------------------------
Manager                                   $470                                   1         $  5,640        1         $  5,640
- ------------------------------------------------------------------------------------------------------------------------------
Operations Superintendent                 $442                                   1         $  5,304        1         $  5,304
- ------------------------------------------------------------------------------------------------------------------------------
Construction Supervisor                   $442                                   3         $ 15,912        2         $ 10,608
- ------------------------------------------------------------------------------------------------------------------------------
Distribution Supervisor                   $442                                   1         $  5,304        0         $    -
- ------------------------------------------------------------------------------------------------------------------------------
Supervising Engineer                      $442                                   1         $  5,304        1         $  5,304
- ------------------------------------------------------------------------------------------------------------------------------
Engineer                                  $442                                   1         $  5,304        0         $    -
- ------------------------------------------------------------------------------------------------------------------------------
Engineer Assistant                        $505                                   2         $ 12,120        0         $    -
- ------------------------------------------------------------------------------------------------------------------------------
Office Manager                            $442                                   1         $  5,304        0         $    -
- ------------------------------------------------------------------------------------------------------------------------------
Meter Reader                              $505                                   5         $ 30,300        2         $ 12,120
- ------------------------------------------------------------------------------------------------------------------------------
Customer Service Advisor                  $442                                   1         $  5,304        1         $  5,304
- ------------------------------------------------------------------------------------------------------------------------------

- ------------------------------------------------------------------------------------------------------------------------------
Other transportation &
- ------------------------------------------------------------------------------------------------------------------------------
  Motorized Equipment
- ------------------------------------------------------------------------------------------------------------------------------
  Not Indicated Above                                             $   -                    $319,272                  $188,040
- ------------------------------------------------------------------------------------------------------------------------------
    NEWGAS-UE TOTAL                                               $65,664                  $415,068                  $232,320
- ------------------------------------------------------------------=======------------------========------------------========-

- ------------------------------------------------------------------------------------------------------------------------------
Less: Amount Charged to Gas Operations in 1995
- ------------------------------------------------------------------------------------------------------------------------------

- ------------------------------------------------------------------------------------------------------------------------------
NET INCREASE IN TRANSPORTATION & MOTORIZED EQUIPMENT EXPENSE FOR NEWGAS-UE
- ------------------------------------------------------------------------------------------------------------------------------
</TABLE> 

<TABLE> 
<CAPTION> 
                                         Wentzville District      Little Dixie District        Capital District
                                        ----------------------    ---------------------     ---------------------
                                                   Est. Annual              Est. Annual               Est. Annual       GRAND
        Description                     Number        Cost        Number       Cost         Number       Cost           TOTAL
- --------------------------------------------------------------------------------------------------------------------------------
<S>                                     <C>        <C>            <C>       <C>             <C>       <C>             <C> 
GO\Pool Vehicles - Standard
- --------------------------------------------------------------------------------------------------------------------------------
GO\Pool Vehicles - Compact
- --------------------------------------------------------------------------------------------------------------------------------
Manager                                   1         $  5,640        1         $  5,640                  $  5,640
- --------------------------------------------------------------------------------------------------------------------------------
Operations Superintendent                 1         $  5,304        1         $  5,304        1         $  5,304
- --------------------------------------------------------------------------------------------------------------------------------
Construction Supervisor                   3         $ 15,912        4         $ 21,216        4         $ 21,216
- --------------------------------------------------------------------------------------------------------------------------------
Distribution Supervisor                   1         $  5,304        3         $ 15,912        2         $ 10,608
- --------------------------------------------------------------------------------------------------------------------------------
Supervising Engineer                      1         $  5,304        1         $  5,304        1         $  5,304
- --------------------------------------------------------------------------------------------------------------------------------
Engineer                                  0         $    -          1         $  5,304        1         $  5,304
- --------------------------------------------------------------------------------------------------------------------------------
Engineer Assistant                        1         $  6,060        3         $ 18,180        2         $ 12,120
- --------------------------------------------------------------------------------------------------------------------------------
Office Manager                            1         $  5,304        1         $  5,304        1         $  5,304
- --------------------------------------------------------------------------------------------------------------------------------
Meter Reader                              2         $ 12,120        7         $ 42,420        3         $ 18,180
- --------------------------------------------------------------------------------------------------------------------------------
Customer Service Advisor                  1         $  5,304        1         $  5,304        1         $  5,304
- --------------------------------------------------------------------------------------------------------------------------------

- --------------------------------------------------------------------------------------------------------------------------------
Other transportation &
- --------------------------------------------------------------------------------------------------------------------------------
  Motorized Equipment
- --------------------------------------------------------------------------------------------------------------------------------
  Not Indicated Above                               $119,724                  $683,244                  $335,340
- --------------------------------------------------------------------------------------------------------------------------------
    NEWGAS-UE TOTAL                                 $185,976                  $813,132                  $429,624      $2,141,784
- ----------------------------------------------------========------------------========------------------========----------------

- --------------------------------------------------------------------------------------------------------------------------------
Less: Amount Charged to Gas Operations in 1995                                                                        $1,766,194
- --------------------------------------------------------------------------------------------------------------------------------

- --------------------------------------------------------------------------------------------------------------------------------
NET INCREASE IN TRANSPORTATION & MOTORIZED EQUIPMENT EXPENSE FOR NEWGAS-UE                                            $  375,590
- --------------------------------------------------------------------------------------------------------------------------------
</TABLE> 

Note: Projected costs based on management's assessment of transportation &
      equipment needs and operating & maintenance experience.

                                      23
<PAGE>
 
                                                        NEWGAS-UE RATE EXHIBIT 3

<TABLE>
<CAPTION>
                                   NEWGAS-UE
                                   RATE BASE
                           (In Thousands of Dollars)

<S>                              <C>         <C>         <C>       
                                   Existing
                                    UE Gas
                                   Company     Reduction
                                 Year Ending  For Common
                                   12/31/95    Plant (1)    NEWGAS-UE
                                 ------------ ----------- ------------
Gas Plant In Service              $ 179,985    $ (5,738)    $ 174,247

Reserve For Depreciation          $  53,744    $ (1,083)    $  52,661
                                 ------------ ----------- ------------

Net Plant                         $ 126,241    $ (4,655)    $ 121,586

Materials & Supplies              $  11,892                 $  11,892

Prepayments                       $     236                 $     236

Customer Advances                 $    (937)                $    (937)

Accumulated Deferred Income Taxes $ (12,616)                $ (12,616)
                                 ------------ ----------- ------------

         TOTAL RATE BASE          $ 124,816    $ (4,655)    $ 120,161
                                  ===========  ==========  ===========


(1)  Mainly buildings and equipment jointly used by the electric and gas
departments. Under a divestiture, all common property would go with the electric
company.
</TABLE>



                                      24
<PAGE>
 

                                                             NEWGAS-UE EXHIBIT 4

<TABLE>
<CAPTION>

                                   NEWGAS-UE
                          STAND-ALONE COST OF CAPITAL

                                Capitalization          Cost           Weighted
Type of Capital                     Ratios            Component          Cost
- ------------------------        --------------        ---------        --------
<S>                            <C>                    <C>             <C>
Long Term Debt                          41.00%            8.41%          3.448%

Preferred                                5.10%            8.41%          0.429%

Common Equity                           53.90%           13.50%          7.277%
                                                                       --------

Weighted Cost of Capital                                                 11.15%
                                                                       ========

</TABLE> 

Note: Capitalization ratios are based on the total UE capital structure as of
12/31/95. Debt and equity were estimated at current costs.

Current cost of debt and preferred = 30 year, 10 Year No Call first mortgage
           bond @ 7.91% (all-in-cost) + 50 basis points

Bond and preferred stock rate provided on April 19, 1996 by Smith Barney.


                                      25
<PAGE>
 
                                                             NEWGAS-UE EXHIBIT 5


                                   NEWGAS-UE
                              Organization Chart

President & CEO
     Vice President - Customer Service
                             Manager - Customer Service Support
                             Manager - Southeast District
                             Manager - Illinois District
                             Manager - Wentzville District
                             Manager - Little Dixie District
                             Manager - Corporate Communications
                             Manager - Gas Supply
                             Manager - Gas Marketing
                             Manager - Capital District
     Vice President - Corporate Services
                             Manager - Purchasing
                             Manager - Stores
                             Manager - Motor Transportation
                             Manager - Real Estate & Facilities
                             Manager - Corporate Planning
     General Counsel
                             Associate General Counsel - Regulatory
                             Associate General Counsel - Claims
     Vice President - Finance
                             Manager - Accounting
                             Manager - Tax
                             Manager - Internal Audit
     Secretary/Treasurer
                             Manager - Investor Relations
                             Manager - Treasury Operations
                             Assistant Secretary - Insurance & Records
     Vice President - Human Resources
                             Manager - Employment Services
                             Manager - Industrial Relations



                                      26
<PAGE>
 
                                                             NEWGAS-UE EXHIBIT 6


                                   NEWGAS-UE
             SALARIES AND WAGES SUMMARY (In Thousands of Dollars)

<TABLE>
<CAPTION>

                                                                                   Totals               
                                                                          ---------------------------
                                          Employees     Salaries/Wages    Employees    Salaries/Wages
                                          ---------     --------------    ---------    --------------
<S>                                       <C>           <C>               <C>          <C>
Executive Staff & Secretarial Support                                            14    $          995

Customer Service Division:
  Customer Service Support                       40     $        1,912
  Gas Supply                                      6     $          365
  Gas Marketing                                   7     $          344
  Southeast District                             45     $        1,996
  Illinois District                              33     $        1,547
  Wentzville District                            25     $        1,145
  Little Dixie District                         101     $        4,331
  Capital District                               44     $        2,061
  Corporate Communications                        2     $          105
                                          ---------     --------------    
    Customer Service Division Total                                             303    $       13,806

Corporate Services Division:
  Purchasing                                      6     $          365
  Stores                                          9     $          450
  Motor Transportation                            4     $          225
  Real Estate & Facilities                        4     $          225
  Corporate Planning                              5     $          305
                                          ---------     --------------                                           
    Corporate Services Division Total                                            28    $        1,570

General Counsel Division:
  Regulatory                                      4     $          240
  Claims                                          5     $          268
                                          ---------     --------------
    General Counsel Division Total                                                9    $          508

Controller Division:
  Accounting, Payroll, Accounts Payable          24     $        1,119
  Internal Audit                                  8     $          475
  Tax                                            12     $          598
                                          ---------     --------------
    Controller Division Total                                                    44    $        2,192

Secretary/Treasurer Division:
  Investor Relations                              4     $          199
  Treasury Operations                            13     $          535
  Insurance & Records                             8     $          351
                                          ---------     --------------
    Secretary/Treasurer Division Total                                           25    $        1,085

Human Resources Division:
  Employment Services                            28     $        1,395
  Industrial Relations                            4     $          225
                                          ---------     --------------
    Human Resources Division Total                                               32    $        1,620
                                                                          ---------    --------------

      GRAND TOTAL                                                               455    $       21,776
                                                                          =========    ==============
</TABLE>

                                      27
<PAGE>
 
                                                             NEWGAS-UE EXHIBIT 7

                    COMPARABLE INVESTOR OWNED GAS UTILITIES
                            CUSTOMERS PER EMPLOYEE

<TABLE> 
<CAPTION> 
                                                         Customers
      Companies               Customers    Employees    Per Employee
- ------------------------      ---------    ---------    ------------
<S>                            <C>           <C>            <C> 
NEWGAS-CIPS                    167,000         541          309
NEWGAS-UE                      121,000         455          266
Connecticut Natural Gas        138,000         642          215
ENERGEN                        435,000       1,488          292
Southern Connecticut Gas       153,000         572          267
United Cities Gas              295,000       1,343          220
Yankee Gas Service             177,000         670          264

</TABLE> 

Source:  American Gas Association - Directory of Member Companies

(Selection Criteria - Total Number of Customers Similar to NEWGAS)

                                      28
<PAGE>
 
                                                             NEWGAS-UE EXHIBIT 8


                         ESTIMATED EXECUTIVE SALARIES
                         ----------------------------


Salary Survey Data for Companies with Revenues less than $300 million were used
to establish a reasonable range for the NEWGAS-UE executive salary levels.  For
existing positions that would become part of the spun-off company, existing UE
salaries were used.

<TABLE>
<CAPTION>
                                                   NEWGAS-UE SALARY
                                                   ----------------
       POSITION           SURVEY DATA RANGE             LEVELS
       --------           -----------------             ------
<S>                       <C>                      <C>
President                         $212,000                 $200,000
Vice President Level      $73,600-$106,300         $80,000-$110,000
</TABLE>

Source:  1996 Edison Electric Institute Executive Compensation Survey

                                      29
<PAGE>
 
                                                             NEWGAS-UE EXHIBIT 9

                    UE ELECTRIC RATE BASE & RATE OF RETURN
                         TWELVE MONTHS ENDED 12/31/95
                           (In Thousands of Dollars)

<TABLE> 
<CAPTION> 
                                     Existing      Addition      Electric
                                     Electric     For Common      Company
                                     Company       Plant (1)    As Adjusted
                                    ----------    ----------    -----------
<S>                                 <C>             <C>         <C> 
Electric Plant In Service           $7,796,628      $5,738      $7,802,366

Reserve For Depreciation            $2,819,806      $1,083      $2,820,889
                                    ----------      ------      ----------

Net Plant                           $4,976,822      $4,655      $4,981,477

Fuel and Materials & Supplies       $  184,684                  $  184,684

Prepayments                         $   13,425                  $   13,425

Customer Advances                   $   (6,935)                 $   (6,935)

Accumulated Deferred Income Taxes   $ (848,543)                 $ (848,543)
                                    ----------      ------      ----------

     TOTAL RATE BASE                $4,319,453      $4,655      $4,324,108
                                    ==========      ======      ==========


NET OPERATING INCOME                $  436,690                  $  436,690
                                    ==========                  ==========

RETURN ON RATE BASE                     10.11%                      10.10%
                                    ==========                  ==========
</TABLE> 

(1) This represents an allocation of all plant and property jointly used by the
electric and gas departments. Under a divestiture, all common property would go
with the electric company.

                                      30
<PAGE>
 

================================================================================
                      SECTION IV.A.  NEWGAS-CIPS OVERVIEW
================================================================================

Spinning-off CIPS' gas operations into a separate stand-alone company (NEWGAS-
CIPS) would result in the following:

 .    NEWGAS-CIPS would need to establish service functions duplicating those at
     CIPS, including treasury, financial planning, accounting, rates, risk
     management, employee benefits, marketing, customer service, regulatory,
     internal audit and public affairs.

 .    Annual operating revenue deductions, exclusive of income taxes, for NEWGAS-
     CIPS would be about 31% ($36.3 million) greater than CIPS' gas operating
     revenue deductions. (SECTION IV.C, Exhibit 1).

 .    NEWGAS-CIPS' customers would experience a rate increase of about 31% ($40.7
     million) in order to provide a 10.98% rate of return for stockholders
     (SECTION IV.C, Exhibit 1).

 .    NEWGAS-CIPS would be at a competitive disadvantage because of high
     operating expenses.

 .    There would be no substantial benefits for customers or stockholders.

                                      31
<PAGE>
 

- --------------------------------------------------------------------------------
                      SECTION IV.B.  NEWGAS-CIPS ANALYSIS
- --------------------------------------------------------------------------------

The CIPS gas distribution system serves approximately 167,000 customers (as of
December 31, 1995) over a 20,000 square mile area of central and southern
Illinois. There are 4,572 miles of mains and 2,321 miles of service lines in the
system. Natural gas revenues for 1995 were $129.6 million on system throughput
of 37.1 billion cubic feet of gas.

CIPS operates as a tightly integrated company with many of its employees
supporting both gas and electric operations. Of CIPS' 2,428 employees (as of
December 31, 1995), only 206 devoted 100% of their time to gas operations. Some
examples of the shared operations include customer service personnel call takers
who deal with service requests for service for both gas and electric customers
and meter readers who read both the electric and gas meters of CIPS' customers.
Additionally, the gas and electric businesses also share services in the areas
of treasury, financial planning, accounting, rates, risk management, employee
benefits, marketing, customer service, regulatory, internal audit and public
affairs. The shared gas and electric responsibilities of many of CIPS' employees
have enabled CIPS to provide quality service at a low cost.

ORGANIZATION STRUCTURE AND STAFFING IMPACT
- ------------------------------------------

The CIPS organization as of December 31, 1995, was used as a pattern for
developing the NEWGAS-CIPS organization structure. See SECTION IV.C, Exhibit 5
for the proposed organization. Divesting the gas operations would eliminate the
effective use of SHARED STAFF to the detriment of both the gas and electric
operations. To operate the gas business on a stand-alone basis, 340 additional
employees would be required, in addition to the 206 employees mentioned above.
CIPS could expect very minimal staffing reductions in the electric business as a
result of a gas divestiture. SECTION IV.C, Exhibit 6 shows the proposed
staffing, salaries, and wages summary, while Exhibit 2d shows that NEWGAS-CIPS
would incur an estimated net labor increase, including benefits, of $21,163,000.
Exhibit 7 shows that with this proposed staffing, NEWGAS-CIPS compares favorably
with other gas utilities in the number of customers per employee. The following
comments demonstrate some of the reasons for additional staffing:

     CIPS' customers receive one bill for both gas and electric service and pay
     with one check. When cash processing personnel process the checks,
     automated equipment posts both electric and gas payments to customers'
     accounts. NEWGAS-CIPS would have to hire staff to handle gas payments that
     are now handled at essentially no additional cost by CIPS. Spinning off the
     gas operations would not reduce the workload on CIPS' cash processing
     personnel, since approximately the same number of checks would be
     processed.

                                      32
<PAGE>
 

     CIPS' meter readers read gas and electric meters on the same routes. 
     NEWGAS-CIPS would have to hire meter readers to re-trace the same routes to
     read the gas meters. Spinning off the gas operations would not reduce the
     number of meter readers needed by CIPS since their routes would remain
     essentially the same.

     CIPS' Finance and Accounting personnel maintain the books and records of
     the Company and arrange for insurance (except employee benefit-related
     insurance). They arrange for long-term financing and borrow short-term
     funds for operations. NEWGAS-CIPS would require personnel to provide the
     same services. Spinning off the gas operations would not provide any
     substantial savings for CIPS in the Finance and Accounting area, since all
     the existing books and records of the Company would remain, insurance needs
     would be similar, and staff time devoted to financing activities would not
     be significantly reduced.

     CIPS' Human Resources Department administers benefit and salary plans.
     NEWGAS-CIPS would need to hire personnel to perform the same duties.
     Spinning off the gas operations would not provide substantial savings to
     CIPS, because each of CIPS' existing benefit and salary plans, and the
     associated reporting requirements, would remain.

     CIPS' Purchasing and General Services Departments provide materials,
     supplies, transportation equipment, etc. to operating divisions. NEWGAS-
     CIPS would need to hire personnel to perform the same duties for gas
     operations. Spinning off the gas operations would reduce the number of
     purchase orders handled by CIPS as well as the amount of material handled
     and storage costs. However, the quantities involved are a small percentage
     of the total, so no staffing reductions would be possible and no facilities
     could be eliminated, making the actual savings for CIPS negligible.

     CIPS hires outside legal counsel to provide legal, regulatory and claims
     services for CIPS' operating divisions. NEWGAS-CIPS would need to hire
     outside legal counsel to perform the same duties. Since many legal issues
     are not divided into gas and electric considerations, the amount of work
     performed by CIPS' outside counsel would not decrease significantly, and
     CIPS would not achieve any measurable savings.

                                      33
<PAGE>
 

INDEPENDENT ACCOUNTANT IMPACT
- -----------------------------

CIPS hires independent accountants to audit the financial statements of the
Company. NEWGAS-CIPS would need to hire independent accountants to perform the
same duties. CIPS would not achieve any significant savings, since the existing
level of work for the independent auditors would remain essentially the same.

INFORMATION TECHNOLOGY IMPACT
- -----------------------------

CIPS provides extensive information services assistance to its operating
division and support departments. NEWGAS-CIPS would need to provide the same
assistance to its departments. Hardware costs are reflective of the quantity of
information to be processed, so NEWGAS-CIPS' hardware and telecommunications
costs would be substantially less than CIPS'. Software costs are generally less
dependent on quantity and more dependent on function, so NEWGAS-CIPS' software
costs would be similar to CIPS'. See Section IV.C, Exhibit 2b, which identifies
a net increase in cost of information services of $11,506,000.

Divesting the gas operations would eliminate opportunities for sharing
information systems resources to the detriment of both the gas and electric
operations:

     NEWGAS-CIPS would be subject to the same regulatory accounting requirements
     as CIPS, so similar general ledger, payroll distribution, fixed asset and
     other accounting systems would be needed. Software costs would be similar
     to CIPS' and are estimated to be about $4 million. CIPS would require all
     existing software, resulting in no software savings and CIPS would expend
     considerable resources changing accounting systems to reflect the
     divestiture of the gas business.

     CIPS operates an integrated material management, purchasing and accounts
     payable system. The system provides ordering, purchasing, tracking,
     receiving, paying and inventory control functions. To maintain existing
     levels of customer service, NEWGAS-CIPS would need a similar integrated
     system, which would cost about $1.5 million. CIPS would require slightly
     less data storage, producing negligible savings. CIPS would require all
     existing software, resulting in no software savings.

     CIPS outsources investor services to handle most stockholder and bondholder
     service requests, make dividend and bond payments and track unclaimed
     checks. NEWGAS-CIPS would also oursource those same services, which are
     estimated to be about $350,000 annually. CIPS would retain the same number
     of stockholders and bondholders and thus would experience no savings.

                                      34
<PAGE>
 

     CIPS' customer information system is extensively integrated with numerous
     other systems, providing seamless flow of information and efficient
     processing of customer service requests, payments and data updates. When
     customers call, the system retrieves information and displays it to the
     call-taker, allowing customers to spend less time on the line. The system
     automatically records customers' payments made by mail, electronically, at
     pay stations or banks. It provides a multitude of services such as budget
     billing, installment financing payments, combined billing for electric and
     gas, preferred pay dates, etc. NEWGAS-CIPS would require similar systems to
     maintain the current level of service to customers. Recently installed
     utility billing systems have cost other utilities $25 - $50 million.
     Scaling down might be possible for a small utility, making the estimated
     cost about $20 million. CIPS would require marginally less data storage,
     forms, etc., but savings would be negligible since there would be about the
     same number of customers. CIPS would expend considerable resources to final
     bill existing combination gas/electric customers and re-establish the
     electric accounts.

     CIPS maintains a work order tracking system (WOTS) which is used to
     quantify and control major projects. This system supports the budget
     process and compares actual costs to estimated costs as the projects are
     completed. NEWGAS-CIPS would need a similar system, costing about
     $1,000,000, to maintain current levels of customer service. CIPS would no
     longer track gas projects on its WOTS system, but data storage and
     processing savings would be insignificant.

     CIPS outsources valuation of the retirement plan for accounting purposes,
     but maintains records of retirees, accumulates information for active
     employees for pension calculations and interfaces with payroll systems to
     maintain accurate information. NEWGAS-CIPS would need a similar system,
     costing about $250,000, to maintain current levels of benefits to
     employees. The assumed reduction of the 206 employees who perform only gas
     related work would have a minimal effect on CIPS' data storage
     requirements, providing insignificant savings.

     CIPS maintains a sophisticated payroll, scheduling, time entry and absence
     tracking system. The system provides scheduling for time worked, vacation
     and other allowed time. It tracks absences and automatically updates
     records and restores sick leave balances. It provides distributed entry of
     time worked and the associated accounting. The system provides for the
     reporting of information to government, regulatory and other agencies.
     NEWGAS-CIPS would need a similar system to schedule, pay and report
     earnings for employees. Since the CIPS system includes complex processes
     required only for power plant operations, NEWGAS-CIPS could use simpler
     software, estimated at about $2,500,000. Processing 206 fewer employees
     would provide insignificant savings for CIPS.

                                      35
<PAGE>
 

     CIPS personnel maintain the systems described above. To maintain similar
     systems, NEWGAS-CIPS would expend about $1,663,000 annually. It is
     estimated NEWGAS-CIPS software maintenance would be about 77 percent of
     CIPS' cost, since some systems would not exist in a gas-only company. Since
     all the existing systems would remain, CIPS would achieve no maintenance
     savings by spinning off the gas operations.

     CIPS maintains communications networks, telephone services, radio systems,
     etc. NEWGAS-CIPS would need personnel and equipment to perform these
     services, costing about $3,484,000 annually to maintain similar systems.
     Due to fewer employees and locations than CIPS, NEWGAS-CIPS would spend an
     amount estimated at 36 percent of CIPS' costs. CIPS would achieve minimal
     savings because the number of locations and employees using its systems
     would remain essentially unchanged.

     CIPS maintains a data center to serve all of the above systems. To operate
     similar systems, NEWGAS-CIPS would need a similar data center, costing
     about $2,772,000 annually, excluding personnel costs. There would be no
     equipment or manpower savings for CIPS since all existing systems would
     remain.

INSURANCE COSTS
- ---------------

CIPS obtains property, liability, directors and officers, workers compensation
and other insurance. NEWGAS-CIPS would require similar insurance policies, at
similar costs. See Section IV.C, Exhibit 2c, which shows an estimated increase
in insurance cost of $302,000 for NEWGAS-CIPS. Since all coverages would remain
in effect, CIPS would experience no significant savings for insurance.


OFFICE AND CREW FACILITIES COSTS
- --------------------------------

CIPS maintains combined electric and gas office and crew facilities at numerous
locations throughout the service area. NEWGAS-CIPS would need facilities for
office and crew personnel at each of the existing combined electric and gas
locations. See Section IV.C, Exhibit 2e, which shows an estimated net increase
of $1,741,506 in additional office and crew facilities costs. Since CIPS would
still operate the electric system, the existing office and crew facilities would
still be needed at each location, resulting in no significant savings for CIPS.

                                      36
<PAGE>
 

TRANSPORTATION AND MOTORIZED EQUIPMENT COSTS
- --------------------------------------------

CIPS maintains transportation and motorized equipment used by both gas and
electric crew and support personnel. NEWGAS-CIPS would need to obtain similar
equipment for gas operations. NEWGAS-CIPS' additional transportation cost would
be about $295,000 as identified in SECTION IV.C, Exhibit 2g. Since vehicle needs
correlate closely with personnel needs, it is estimated that the reduction in
equipment to be achieved by CIPS would equal the additional equipment required
by NEWGAS-CIPS, except for vehicles used by meter readers to read both electric
and gas meters. CIPS would still need about the same number of meter reader
vehicles currently used in the combination gas and electric districts, but the
costs currently allocated to the gas business would be absorbed by the electric
customers, resulting in increased annual meter reading vehicle costs to CIPS of
about $41,200.

TRANSITION COSTS
- ----------------

The divestiture of the gas operations of CIPS and the creation of a stand-alone
gas company would be a complex legal and financial transaction that would
involve substantial transition costs. These costs would include legal and
financial advising fees, and the services of independent accountants, actuaries
and other consultants. Real estate services would be needed to procure
facilities. Several hundred personnel would have to be hired and trained.
Benefit plans would need to be established. The estimated transition costs of
$11,031,000 for NEWGAS-CIPS were developed by calculating the average of such
costs incurred in several other publicly reported business spin-offs. See
SECTION IV.C, Exhibit 2f.

COST OF CAPITAL
- ---------------

The effective cost of capital for the stand-alone gas business was estimated
based upon capitalization ratios of CIPS' capital structure as of December 31,
1995, and estimated current costs of debt and equity, which average about
10.98%. See SECTION IV.C, Exhibit 4 for detailed information.

CONCLUSION
- ----------

The Study concludes that a separate gas distribution company would require 546
full-time employees, an increase of approximately 165% over the number of
employees currently devoted to gas operations full-time. Based upon the
assumptions set forth in SECTION II and the staffing requirements of the
organizational structure, increased annual costs (excluding Federal and State
income taxes) for NEWGAS-CIPS are projected to be $36,317,000.

                                      37
<PAGE>
 
The exhibits (SECTION IV.C) that follow show the economic effects of operating
CIPS' gas division as a separate entity.

                                      38
<PAGE>
 
================================================================================
                SECTION IV.C.  NEWGAS-CIPS SCHEDULE OF EXHIBITS
================================================================================

<TABLE>
<CAPTION>

       EXHIBIT NO.                            EXHIBIT TITLE
- -----------------------      ---------------------------------------------------
<S>                          <C>
             1               Income Statement, Proforma Adjustments & Revenue
                              Requirement

             2               Estimated Additional Operating Expenses

            2a               Estimated External Audit Fees Based on Survey Data

            2b               Estimated Information Services Costs

            2c               Estimated Increased Cost of Insurance Coverage

            2d               Estimated Net Labor Increase, Including Benefits

            2e               Estimated Operating Lease Facilities and Furniture
                              Costs

            2f               Estimated Transition Costs

            2g               Estimated Net Increase in Transportation &
                              Motorized Equipment Expense

             3               Rate Base

             4               Cost of Capital

             5               Corporate Structure

             6               Salaries and Wages Summary

             7               Comparable Investor Owned Gas Companies
                             (Customers Per Employee Ratios)

             8               Estimated Executive Salaries

             9               CIPS' Electric Rate Base & Rate of Return
</TABLE>

                                      39
<PAGE>
 
                                                           NEWGAS-CIPS EXHIBIT 1

                         NEWGAS-CIPS INCOME STATEMENT
                  PROFORMA ADJUSTMENTS & REVENUE REQUIREMENT
                           (In thousands of dollars)

<TABLE> 
<CAPTION> 
                                         Existing
                                         CIPS Gas
                                         Company                                        Revenue
                                       Year Ending      Proforma        Proformed     Requirement
                                         12/31/95    Adjustments (1)   NEWGAS-CIPS    Increase (2)
                                       -----------   ---------------   -----------    ------------
<S>                                      <C>             <C>            <C>             <C> 
OPERATING REVENUE:                       $129,611        $     -        $129,611        $170,293

Operating Revenue Deductions:
- -----------------------------

  Purchased Gas                          $ 71,463                       $ 71,463        $ 71,463
  Gas Withdrawn From Storage             $  2,591                       $  2,591        $  2,591
  O & M                                  $ 26,557        $35,043        $ 61,600        $ 61,600
  Depreciation                           $  6,804                       $  6,804        $  6,804
  Taxes Other Than Income                $  9,962        $ 1,274        $ 11,236        $ 11,236
                                         --------        -------        --------        --------

TOTAL OPERATING REVENUE DEDUCTIONS       $117,377        $36,317        $153,694        $153.704
                                         --------        -------        --------        --------

GROSS GAS INCOME                         $ 12,234                       $(24,083)       $ 16,599
                                         --------                       --------        --------

FEDERAL & STATE INCOME TAX (3)           $  3,661                       $ (7,225)       $  4,980
                                         --------                       --------        --------

NET GAS INCOME                           $  8,573                       $(16,858)       $ 11,619
                                         ========                       ========        ========

RATE BASE (4)                            $112,592                       $105,819        $105,819
                                         ========                       ========        ========

INDICATED RATE OF RETURN                     7.61%                        -15.93%          10.98%(5)
                                         ========                       ========        ========
</TABLE> 

(1) See Exhibit 2 for a detailed summary of proforma adjustments.

(2) An increase of $40,682,000 or 31.39% in revenue is required to achieve a 
rate of return of 10.98%. For the purposes of this Study, gross receipts taxes 
were not considered since both the resulting revenue and taxes (revenue 
deduction) would nullify any impact from this calculation.

(3) For twelve months ended 12/31/95, CIPS' effective Federal & State Income 
Taxes were 30.0% of gross gas income. This effective tax rate was used to 
calculate taxes for the Proformed NEWGAS-CIPS and Revenue Requirement Increase 
columns.

(4) See Exhibit 3.

(5) The effective rate of return is assumed to be the weighted cost of capital 
per Exhibit 4.

                                      40
<PAGE>
 
                                                           NEWGAS-CIPS EXHIBIT 2



                                  NEWGAS-CIPS
                    ESTIMATED ADDITIONAL OPERATING EXPENSES
                             PROFORMA ADJUSTMENTS
                           (In thousands of dollars)
<TABLE> 
<CAPTION> 
                                                           Exhibit
                                                          Reference
                                                            Number      Amount
                                                          ==========  ==========
<S>                                                          <C>       <C>  
External Auditing Costs                                       2a        $   206
Information Services Outsourced                               2b        $11,506
Insurance Premiums                                            2c        $   302
Labor & Benefits                                              2d        $21,163
Leased Facilities/Furniture                                   2e        $ 1,742
Transition Cost (Amortized)                                   2f        $ 1,103 
Transportation & Work equipment                               2g        $   295
                                                                        -------
                Total Additional Expenses                               $36,317

Less: FICA and Unemployment Insurance                         2d        $ 1,274
                                                                        -------

TOTAL ADDITIONAL O & M EXPENSES                                         $35,043
                                                                        =======
</TABLE> 
<PAGE>
 
                                                          NEWGAS-CIPS EXHIBIT 2a





                                  NEWGAS-CIPS
                            EXTERNAL AUDITOR COSTS
              ESTIMATED EXTERNAL AUDIT FEES BASED ON SURVEY DATA
                              PROFORMA ADJUSTMENT

<TABLE>
<CAPTION>
<S>                                                                                         <C>
     Listing of Data for Surveys comparing External Audit Fees                             Amount
     ---------------------------------------------------------                           ---------
Average fee for Utility companies with less than 300,000 Customers in 1994               $ 191,000
Average fee for Peer Group comparison with less than 300,000 Customers in 1994           $ 188,000
                                                                                         ---------
                     Average of External Audit Fee Surveys                               $ 189,500

     Average Audit Fee for Pension Plans with less than 5,000 employees                  $  38,693
                                                                                         ---------
               Total Estimated Annual Audit Fees for NEWGAS-CIPS                         $ 288,193

Less: External Audit Fees Allocated to Gas operations in 1995                            $  22,000
                                                                                         ---------
           Net Estimated Annual Audit Fees Increase for NEWGAS-CIPS                      $ 206,193
                                                                                         =========


Sources: Illinois Power Audit Fee Peer Group Comparison - 1994
         American Gas Association/Edison Electric Institute External Audit Fees - October 1995

</TABLE>

                                      42
<PAGE>
 
                                                          NEWGAS-CIPS EXHIBIT 2b



                                  NEWGAS-CIPS
                             INFORMATION SERVICES
                     ESTIMATED INFORMATION SERVICES COSTS
                              PROFORMA ADJUSTMENT
                           (In thousands of dollars)
<TABLE> 
<CAPTION> 

                  Software Application Costs                           Amount
                  --------------------------                           ------
<S>                                                                    <C> 
General Ledger/Capital Projects/Asset Management/Accounts Payable      $ 4,000
Payroll Distribution                                                   $   500
Customer Information System (CIS)                                      $20,000
Work Order Tracking System (WOTS)                                      $ 1,000
Gas Systems                                                            $ 6,250
Materials Management System                                            $ 1,500
Pension Manager                                                        $   250
Payroll/Human Resources                                                $ 1,500 
Time Reporting                                                         $ 1,000
Miscellaneous                                                          $ 2,830  
                                                                       -------
                Total Software Application Costs (1)                   $38,830
                                                                       =======


                         Annual System Operating Costs
                         -----------------------------
Data Processing                                                        $ 2,772
Software Maintenance and Support                                       $ 1,663
Telecommunications                                                     $ 3,484
                                                                       -------
                    Total Annual System Operating Costs (2)            $ 7,919
                                                                       =======


               Estimated Cost to Outsource Information Services
               ------------------------------------------------
(1) Annualized Software Application Costs (10 year amortization)       $ 3,883
(2) Total Annual System Operating Costs                                $ 7,919
(3) Investment Services Costs                                          $   350
                                                                       -------
              Total Annual Cost to Outsource Information Services      $12,152
                                                                       -------
Less: Information Services Expenses Allocated to Gas Operations in
 1995                                                                  $   646
                                                                       -------
                 Net Increase in Cost for Information Services         $11,506
                                                                       =======
</TABLE> 

                                      43

<PAGE>
 
                                                          NEWGAS-CIPS EXHIBIT 2c


                                 NEW GAS-CIPS
                ESTIMATED INCREASED COST OF INSURANCE COVERAGE
                              PROFORMA ADJUSTMENT
 
<TABLE>
<CAPTION>
                                   Limits                        Estimated     Net Increase to
Coverage                         (Millions)     Deductible      Premium Cost     NEWGAS-CIPS
- -----------------------------    ----------     ----------      ------------   ---------------
<S>                              <C>            <C>             <C>            <C>
Property                         $       5      $  250,000      $     30,000
General Liability                $      60      $  250,000      $    236,000
Auto Liability (self-insured)    $       -      $        -      $          -
Directors & Officers Liability   $      10      $  250,000      $     75,000
Workers Compensation             Statutory      $  350,000      $     25,000
Fiduciary Liability              $       5      $    5,000      $     10,000
Crime (Fidelity)                 $       5      $    5,000      $     10,000
                                                                ------------
   Total NEWGAS-CIPS Premium                                    $    386,000
Less:  1995 Insurance Cost Allocated to CIPS Gas Operation      $     84,000
                                                                ------------
   Net Increase in Insurance Costs for NEWGAS-CIPS                             $       302,000
                                                                               ===============
</TABLE>
                                                                   
Source: Premiums based on estimated cost quotations obtained by the Risk
Management Section of CIPS' Accounting Department.

                                      44
<PAGE>
 

                                                          NEWGAS-CIPS EXHIBIT 2d




                                  NEWGAS-CIPS
               ESTIMATED NET LABOR INCREASE, INCLUDING BENEFITS
                              PROFORMA ADJUSTMENT
                           (In thousand of dollars)


Total Estimated Salaries and Wages (Exhibit 6)           $27,589

 Less:  Amount for Construction & Removals (10%) (1)     $ 2,759
                                                        ---------

Total Estimated NEWGAS-CIPS Salaries & Wages Charged to O & M   $24,830

 Less: 1995 CIPS Gas Salaries & Wages Charged to O & M          $ 9,926
                                                               ---------
Increase in NEWGAS-CIPS Salaries & Wages Charged to O & M               $14,904

Benefits(2):
 Employee Life, Hospitalization, savings plans, etc.            $3,678 
 Pension Plan                                                   $  757
 FICA & Unemployment Insurance (Exhibit 2)                      $1,274
 Other                                                          $  550
                                                               --------
                        Total Benefits                                  $ 6,259
                                                                       ---------

NEWGAS-CIPS Net Labor Increase, Including Benefits                      $21,163
                                                                       =========


(1) Amount of labor allocated to construction and removal is based on the actual
amount spent by CIPS in 1995.

(2) Benefit costs were estimated base upon the cost (as a percentage of payroll)
currently budgeted by CIPS:
 Life, hospitalization, savings plans, post employment
  benefit, etc.                                                  24.68%
 Pension Plan                                                     5.08%
 FICA & Unemployment Insurance                                    8.55%
 Other                                                            3.69%
                                                               --------
                             Total                               42.00%
                                                               ========




                                      45
<PAGE>
 
                                                          NEWGAS-CIPS EXHIBIT 2e
                                  NEWGAS-CIPS
           ESTIMATED OPERATING LEASE FACILITIES AND FURNITURE COSTS
                              PROFORMA ADJUSTMENT

<TABLE>
<CAPTION>
                           -----------------------------------------------------------
                                             Office Space Calculation
                           -----------------------------------------------------------
                           Management    Office Space                                    ------   ------------ 
                             & Staff       Needs in          Cost Per        Total       Works    Total Leased
                            Employee     Square Feet       Square Foot    Office Space   Hqtrs.    Facilities
                              Count          (1)               (2)            Cost        (3)         Cost
                           -----------------------------------------------------------   ------   ------------
<S>                       <C>           <C>               <C>             <C>            <C>      <C>
General Office:
  Springfield, IL              267         82,236             $11.00        $904,596         -      $  904,596

Eastern Division (IL):
  Effingham                      3            -               $   -         $    -        $17,000
  Hoopeston                      3            -               $   -         $    -        $17,000
  Mattoon                       18          5,544             $10.00        $ 55,440      $55,400
  Paris                          3            -               $   -         $    -        $17,000
  Robinson                       3            -               $   -         $    -        $17,000
  Taylorville                    3            -               $   -         $    -        $17,000
                                                                                          -------
     Total                                                                                          $  195,840

Southern Division (IL):
  Benton                         3            -               $   -         $    -        $17,000 
  Carbondale                     3            -               $   -         $    -        $17,000
  Marion                        16          4,928             $ 9.00        $ 44,342      $55,400
                                                                                          -------
     Total                                                                                          $  133,752

Western Division (IL):
  Beardstown                    18          5,544             $ 7.00        $ 38,808      $55,400
  Canton                         3            -               $   -         $    -        $17,000
  Jerseyville                    3            -               $   -         $    -        $17,000
  Macomb                         3            -               $   -         $    -        $17,000
  Petersburg                     3            -               $   -         $    -        $17,000
  Quincy                         3            -               $   -         $    -        $55,400
                                                                                          -------
     Total                                                                                          $  217,608

Estimated Office Operating Furniture Lease Expense for All Areas:                                   $  343,000
                                                                                                    ----------

NEWGAS-CIPS FACILITIES - GRAND TOTAL                                                                $1,794,796

     Less: Current allocated costs for gas facilities                                               $   53,290
                                                                                                    ----------

NET NEWGAS-CIPS FACILITIES - GRAND TOTAL                                                            $1,741,506
                                                                                                    ==========
</TABLE> 

(1)  This cost was based on an average 308 square feet per employee.

(2)  Cost per square foot per annum averaged $7 in Beardstown, $9 in Marion, $10
in Mattoon, and $11 in Springfield. Excluding Springfield these averages were
derived taking purchased cost of buildings amortized over 7 years for annual
lease expense.

(3)  This includes space for construction & service supervision, staff, 
materials & supplies, and vehicles & equipment. Annual lease costs were based on
actual appraised values of utility facilities capable of accommodating 
applicable staff, materials & equipment.

                                      46


<PAGE>
 
                                                         NEW GAS-CIPS EXHIBIT 2f




                                 NEW GAS-CIPS
                          ESTIMATED TRANSITION COSTS
                              PROFORMA ADJUSTMENT

Transition costs required to established a new corporation would include the 
following:
                        Legal fees
                        Financial advisory fees
                        Consulting services of independent accountants,
                         actuaries, and others.
                        Real estate services for acquisitions
                        Hiring and training costs to staff newly created
                         positions
                        Benefits plans established
                        Data conversion


Transition costs for NEWGAS-CIPS were estimated based upon an average of the 
following published transition costs for other corporate spin-offs:

<TABLE> 
<CAPTION> 


ORIGINAL CORPORATION           SPIN-OFF COMPANY               COSTS(000)
- --------------------           ----------------               ----------
<S>                            <C>                            <C>   
Baxter International            Caremark                       $ 13,300
Adolph Coors                    ACX Technologies               $  7,200
Dial Corporation                GFC Financial                  $ 13,000
Union Carbide                   Praxair                        $ 11,000
Ryder                           Avial                          $  9,000
Price Costco                    Price Enterprises              $ 15,250
Humana                          Galen                          $ 15,000
Honeywell                       Aliant                         $  4,500

                                                               --------
          Average Transition Costs of the Above Companies      $ 11,031
                                                               --------

Annual amortization of Transition Costs for NEWGAS-CIPS (10%)  $  1,103
                                                               ========
</TABLE> 

Source: Transition costs reported in SEC Form 10-K filings.

                                      47
<PAGE>
 
                                                         NEWGAS-CIPS EXHIBIT 2g
 
                                  NEWGAS-CIPS
               ESTIMATED NET INCREASED IN TRANSPORTATION EXPENSE
                              PROFORMA ADJUSTMENT
<TABLE> 
<CAPTION>                                    =======================  ===================  ====================  ===================
                                             General Office(GO)\Pool   Eastern Division      Southern Division    Western Division
=============================  ============  =======================  ===================  ====================  ===================
<S>                               <C>         <C>     <C>             <C>    <C>            <C>     <C>          <C>     <C> 
                                  Rate Per            Est. Annual            Est. Annual            Est. Annual          Est. Annual
         Description               Month      Number     Cost         Number    Cost        Number     Cost      Number     Cost
=============================--============--=======================--===================--====================--===================
Pool Vehicles                      $470         8       $45,120 
- ------------------------------------------------------------------------------------------------------------------------------------
Pool Vehicles                      $442         5       $26,520
- ------------------------------------------------------------------------------------------------------------------------------------
Manager                            $470                                  1     $  5,640       1       $  5,640     1       $  5,640
- ------------------------------------------------------------------------------------------------------------------------------------
Superintendent                     $442                                  6     $ 31,824       6       $ 31,824     6       $ 31,824
- ------------------------------------------------------------------------------------------------------------------------------------
H/R Supervisor                     $442                                  1     $  5,304       1       $  5,304     1       $  5,304
- ------------------------------------------------------------------------------------------------------------------------------------
New Business Supervisor            $442                                  1     $  5,304       1       $  5,304     1       $  5,304
- ------------------------------------------------------------------------------------------------------------------------------------
C/S & N/B Representatives          $442                                  4     $ 21,216       4       $ 21,216     4       $ 21,216
- ------------------------------------------------------------------------------------------------------------------------------------
Engineer                           $442                                  2     $ 10,608       2       $ 10,608     2       $ 10,608
- ------------------------------------------------------------------------------------------------------------------------------------
Operating Supervisor               $442                                  1     $  5,304       1       $  5,304     1       $  5,304
- ------------------------------------------------------------------------------------------------------------------------------------
Meter Reader                       $505                                  7     $ 42,420       5       $ 30,300     8       $ 48,480
- --------------------------------------------------------=======----------------========---------------========-------------========-

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

- ------------------------------------------------------------------------------------------------------------------------------------
NEWGAS-CIPS TOTAL                                       $71,640                $127,620               $115,500             $133,680
- --------------------------------------------------------=======----------------========---------------========-------------========-

- ------------------------------------------------------------------------------------------------------------------------------------
Less: 1995 allocations on CIPS vehicles                                  
- ------------------------------------------------------------------------------------------------------------------------------------

====================================================================================================================================
NET INCREASED TRANSPORTATION EXPENSE FOR NEWGAS-CIPS
====================================================================================================================================
</TABLE> 
<TABLE> 
<CAPTION> 
====================================================================
                                                            GRAND
  Description                                               TOTAL   
====================================================================
<S>                                                        <C> 
Pool Vehicles
- --------------------------------------------------------------------
Pool Vehicles
- --------------------------------------------------------------------
Manager
- --------------------------------------------------------------------
Superintendent
- --------------------------------------------------------------------
H/R Supervisor
- --------------------------------------------------------------------
New Business Supervisor
- --------------------------------------------------------------------
C/S & N/B Representatives
- --------------------------------------------------------------------
Engineer
- --------------------------------------------------------------------
Operating Supervisor
- --------------------------------------------------------------------
Meter Reader
- --------------------------------------------------------------------

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

- --------------------------------------------------------------------
NEWGAS-CIPS TOTAL                                          $448,440
- --------------------------------------------------------------------

- --------------------------------------------------------------------
Less: 1995 allocations on CIPS vehicles                    $153,591
- -----------------------------------------------------------=========

====================================================================
NET INCREASED TRANSPORTATION EXPENSE FOR NEWGAS-CIPS       $294,849 
====================================================================
</TABLE> 

Note: Projected costs based on management's assessment of transportation &
      equipment needs and operating & maintenance experience.

                                      48
<PAGE>
 
                                                           NEWGAS-CIPS EXHIBIT 3

                                  NEWGAS-CIPS
                                   RATE BASE
                           (In thousands of dollars)
<TABLE> 
<CAPTION> 
                                    Existing
                                    CIPS Gas
                                     Company      Reduction
                                   Year Ending    For Common
                                    12/31/95       Plant(1)      NEWGAS-CIPS
                                   -----------    ----------     -----------
<S>                                <C>            <C>            <C>
Gas Plant In Service               $  228,207     $   7,024)     $  221,183
Reserve For Depreciation           $   93,453     $    (251)     $   93,202
                                   -----------    ----------     -----------
Net Plant                          $  134,754     $  (6,773)        127,981
Materials & Supplies                    1,048                    $    1,048
Prepayments                        $     (986)                   $     (986)
Customer Advances                  $     (464)                   $     (464)
Accumulated Deferred Income Taxes  $  (21,760)                   $  (21,760)
                                   -----------    ----------     -----------
   TOTAL RATE BASE                 $  112,592     $  (6,773)     $  105,819
                                   ===========    ==========     ===========
</TABLE>



(1) Mainly building and equipment jointly used by the electric and gas
departments. Under a divestiture, all common property would go with the electric
company.

                                      49
<PAGE>
 
                                                           NEWGAS-CIPS EXHIBIT 4




                                 NEW GAS-CIPS
                          STAND ALONE COST OF CAPITAL
                                AS OF 12/31/95

<TABLE> 
<CAPTION> 


                        Capitalization            Cost           Weighted
Type of Capital             Ratios              Component          Cost
- ---------------         --------------          ---------        --------
<S>                     <C>                     <C>              <C> 
Long Term Debt                  42.41%              8.41%          3.567%

Preferred Equity                 7.08%              8.41%          0.595%

Common Equity                   50.51%             13.50%          6.819%
                                                                 -------

WEIGHTED COST OF CAPITAL                                           10.98%
                                                                 =======
</TABLE> 

Note: Capitalization ratios are based on the total CIPS capital structure as of 
12/31/95.
Debt and equity were estimated at current costs.

Current cost of debt and preferred = 30 year, 10 Year No Call first mortgage
 bond
           @7.91% (all-in-cost) + 50 basis points

Bond and preferred stock rate provided on April 19, 1996 by Smith Barney.

                                      50
<PAGE>
 
                                                           NEWGAS-CIPS EXHIBIT 5


                                  NEWGAS-CIPS
                              Organization Chart


President & CEO
             Vice President - Finance
                                          Supervisor - Risk Management
                                          Controller
                                          Treasurer & Assistant Secretary
                                          Manager - Internal Audit
             Vice President - H/R, Labor Relations, Admin & Corporate Secretary
                                          Supervisor - Labor Relations
                                          Supervisor - Benefits & Administration
                                          Manager - Corporate Communications
                                          Manager - Purchasing & Stores
                                          Manager - General Services
             Vice President - Marketing & Customer Service
                                          Supervisor - Customer Expansion
                                          Manager - Customer Service
                                          Manager - Gas Marketing
             Vice President - Operations
                                          Manager - System Planning &
                                            Engineering
                                          Manager - Eastern Division
                                          Manager - Southern Division
                                          Manager - Western Division
             Vice President - Gas Supply
                                          Manager - Gas Supply
                                          Manager - Corporate Planning
                                          Manager - Rates & Regulatory
                                          Manager - Public Affairs

                                      51
<PAGE>
 
                                                           NEWGAS-CIPS EXHIBIT 6

                                  NEWGAS-CIPS
             Salaries and Wages Summary (In Thousands of Dollars)


<TABLE> 
<CAPTION> 
                                                                                               Totals
                                                                                   ---------------------------------
                                        Employees         Salaries/Wages           Employees          Salaries/Wages
                                        ---------         --------------           ---------          --------------
<S>                                     <C>               <C>                      <C>                <C>  
Executive Staff & Secretarial Support                                                    12           $         928    


Marketing & Customer Service Div:      
 Customer Expansion                            9          $         507         
 Customer Service                             33          $       1,349
 Gas Marketing                                11          $         549
                                        ---------         -------------                  
   Mrkting & Cust. Serv Div Total                                                        53           $       2,405

Operations Division:
 Gas Planning & Engineering                   12          $         640
 Eastern Division                             97          $       3,899
 Southern Division                            74          $       2,980
 Western Division                            108          $       4,528
                                        ---------         --------------
   Operations Division Total                                                            291           $      12,047 

Planning & Regulatory Division:
 Gas Supply                                   15          $         826
 Corporate Planning                            5          $         272
 Rates and Regulatory                         14          $         755
 Public Affairs                                4          $         238
                                        ---------         --------------
   Planning & Reg. Division Total                                                        38           $       2,091   

Finance Division:
 Risk Management                              10          $         535
 Accounting Operations                        40          $       2,344
 Treasury Operations                          22          $       3,528
 Internal Audit                                7          $         407
                                        ---------         --------------
   Finance Division Total                                                                79           $       6,814

H/R, Admin., Labor Rel., & Corp. Sec:
 Labor Relations                               3          $         183
 Benefits and Administration                  16          $         813
 Corporate Communications                      7          $         370
 Purchasing & Stores                          11          $         573
 General Services                             36          $       1,365
                                        ---------         --------------
 H/R, Admin., Labor Rel., Corp. Total                                                    73           $       3,304

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

          GRAND TOTAL                                                                   546           $      27,589
                                                                                   =========          ==============
</TABLE> 

                                      52



<PAGE>
 
                                                           NEWGAS-CIPS EXHIBIT 7


                    COMPARABLE INVESTOR OWNED GAS UTILITIES
                            CUSTOMERS PER EMPLOYEE

<TABLE>
<CAPTION>

                                                     Customers
      Companies          Customers      Employees  Per Employee
- ----------------------  ------------  -----------  ------------
<S>                     <C>           <C>          <C>
NEWGAS-CIPS                167,000         541           309
NEWGAS-UE                  121,000         455           266
Connecticut Natural Gas    138,000         642           215
ENERGEN                    435,000       1,488           292
Southern Connecticut Gas   153,000         572           267
United Cities Gas          295,000       1,343           220
Yankee Gas Service         177,000         670           264

</TABLE> 


Source:  American Gas Association - Directory of Member Companies

(Selection Criteria - Total Number of Customers Similar to NEWGAS)

                                      53
<PAGE>
 
                                                           NEWGAS-CIPS EXHIBIT 8


                         ESTIMATED EXECUTIVE SALARIES
                         ----------------------------


Salary Survey Data for Companies with Revenues less than $300 million were used
to establish a reasonable range for the NEWGAS-CIPS executive salary levels. For
existing positions that would become part of the spun-off company, existing CIPS
salaries were used.

<TABLE>
<CAPTION>
                                               NEWGAS-CIPS SALARY
                                               ------------------
       POSITION         SURVEY DATA RANGE            LEVELS
       --------         -----------------            ------
<S>                     <C>                    <C>
President                        $212,000                $200,000
Vice President Level     $73,600-$106,300        $80,000-$110,000
</TABLE>


Source:  1996 Edison Electric Institute Executive Compensation Survey

                                      54
<PAGE>
 
                                                           NEWGAS-CIPS EXHIBIT 9



                    CENTRAL ILLINOIS PUBLIC SERVICE COMPANY
                      ELECTRIC RATE BASE & RATE OF RETURN
                         TWELVE MONTHS ENDED 12/31/95
                           (In thousands of dollars)


<TABLE> 
<CAPTION> 

                                    Existing               Addition              Electric
                                    Electric               For Common             Company
                                    Company                Plant (1)            As Adjusted
                                 ------------              ----------          -------------
<S>                              <C>                       <C>                 <C> 
Electric Plant In Service         $ 2,285,299               $ 7,024             $  2,292,323

Reserve For Depreciation          $ 1,038,809               $   251             $  1,039,060
                                 ------------               -------             ------------

Net Plant                         $ 1,246,490               $ 6,773             $  1,253,263

Fuel and Materials & Supplies     $    39,199                                   $     39,199

Prepayments                       $     7,181                                   $      7,181

Customer Advances                 $      (742)                                  $       (742)

Accumulated Deferred Income Taxes $  (326,854)                                  $   (326,854)
                                  -----------               -------             ------------

         TOTAL RATE BASE          $   965,274               $ 6,773             $    972,047
                                  ===========               =======             ============

NET OPERATING INCOME              $    97,557                                   $     97,557
                                  ===========                                   ============

RETURN ON RATE BASE                    10.11%                                         10.04%
                                  ===========                                   ============
</TABLE> 

(1)  This represents an allocation of all plant and property jointly used by the
electric and gas departments. Under a divestiture, all common property would go
with the electric company. See Exhibit 3.

                                      55

<PAGE>
 
                                                                     Exhibit K-2



                        SUMMARY OF LOST ECONOMY RATIOS
<TABLE>
<CAPTION>


                                                            UE and CIPS
                                   _______________________________________________________________________

                                           NEWGAS-UE                             NEWGAS-CIPS     
                                   ________________________________   ____________________________________

                                                       Percent of                             Percent of
                                                     estimated loss                         estimated loss 
                                    Amount          of economies to:          Amount       of economies to:
                                    ______          ________________          ______       ________________


<S>                              <C>                <C>                   <C>               <C>

Operating Revenues               $87,814,000                  25.19%      $129,611,000               28.02%

Operating Revenue Deductions/1/   80,478,000                  27.48%       117,377,000               30.94%

Gross Income/2/                    7,336,000                 301.47%        12,234,000              296.85%

Net Income/2/                      5,205,000                 424.90%         8,573,000              423.62%

Estimated Loss of Economies       22,242,000                                35,986,000
</TABLE>

NOTES

1         Excludes federal income taxes.

2         Before deducting federal income taxes.

          
<PAGE>
 
<TABLE>
<CAPTION>
 
 
                                                                           CINergy
                                        ____________________________________________________________________________
 
                                                              
                                                               
                               Gas Properties of Cincinnati       Gas Properties of Union Light,     Gas Properties of Lawrenceburg
                                Gas & Electric Co. - 1993           Heat and Power Co. - 1993                 Gas Co. - 1993
                               ___________________________        ___________________________        ______________________________
 
                                               Percent of                            Percent of                           Percent of
                                               estimated                             estimated                            estimated
                                                loss of                               loss of                              loss of
                                               economies                             economies                            economies
                                   Amount         to:                Amount             to:              Amount              to:
                                  _______      __________            _______         __________          _______          __________
 
  
<S>                            <C>             <C>                <C>                    <C>           <C>                   <C>
 
Operating Revenues            $382,726,614           7.88%        $74,769,120             10.93%       $7,516,461             14.46%
 
Operating Revenue              355,064,520           8.49%         64,616,026             12.65%        6,268,225             17.34%
Deductions/1/
 
Gross Income/2/                 27,732,094         108.71%         10,153,094             80.49%        1,298,236             87.09%
 
Net Income/2/                   14,286,471         211.02%          6,335,113            129.00%        1,062,927            102.28%

Estimated Loss of Economies     30,146,860                          8,172,339                           1,087,136

 
</TABLE>

NOTES

1         Excludes federal income taxes.

2         Before deducting federal income taxes.

          
                                       2
<PAGE>
 
<TABLE>
<CAPTION>


                                            Gulf States Utilities            Fitchburg Gas & Electric
                                         ----------------------------     -----------------------------
                                            GSU Gas Division 1991          Fitchburg Gas Division 1990
                                         ----------------------------     -----------------------------
                                                       Percent of                        Percent of
                                                    estimated loss of                 estimated loss of
                                          Amount      economies to:        Amount       economies to:
                                       -----------  -----------------   -----------   -----------------
<S>                                    <C>          <C>                 <C>           <C>

Operating Revenues                     $31,858,000       16.13%         $17,324,993       13.94%

Operating Revenue Deductions/1/         30,770,000       16.70%          15,755,267       15.33%

Gross Income/2/                          1,088,000      472.24%           1,569,726      153.87%

Net Income/2/                               n/a           n/a                n/a            n/a

Estimated Loss of Economies              5,138,000                        2,415,391
</TABLE>

NOTES

/1/  Excludes federal income taxes.

/2/  Before deducting federal income taxes.

     
                                       3
<PAGE>
 
<TABLE>
<CAPTION>


                                                                                   General Public Utilities
                                  NEES              Middle South Utilities, Inc.            Corp.               Philadelphia Company
                      -------------------------     ----------------------------   ------------------------     --------------------
                                                                                   Gas Properties of Jersey
                          Gas Properties of 8        Gas Properties of Louisiana    Central Power & Light
                      Subsidiaries Combined-1958       Power & Light Co.-1954            Co.-6/30/49               Gas Group-1946
                      --------------------------    ----------------------------   ------------------------     --------------------

                                     Percent of                    Percent of                   Percent of               Percent of
                                      estimated                    estimated                    estimated                 estimated
                                       loss of                      loss of                      loss of                   loss of
                                      economies                    economies                    economies                 economies
                         Amount          to:           Amount         to:            Amount        to:          Amount       to:
                        ----------   ----------      ---------     ------------     --------    ----------     --------  ----------
<S>                     <C>          <C>             <C>           <C>             <C>          <C>           <C>        <C>

Operating Revenues      $22,752,270     4.83%        $5,264,186        5.18%       $4,714,958      4.87%      $16,656,560   3.00%

Operating Revenue
 Deductions/1/           18,207,191     6.03%         4,112,285        6.63%        4,235,661      5.42%       13,197,846   3.79%

Gross Income/2/           4,718,864    23.28%         1,151,901       23.68%          479,477     47.84%        3,565,357  14.03%

Net Income/2/             3,669,931    29.93%             n/a          n/a            202,582    113.24%           n/a      n/a

Estimated Loss of
 Economies                1,098,500                     272,816                       229,398                     500,328
</TABLE>

NOTES

/1/  Excludes federal income taxes.

/2/  Before deducting federal income taxes.

                                       4
<PAGE>
 
<TABLE>
<CAPTION>
 
                                  The North American Company                Engineers Public Service Company
                               -------------------------------   ------------------------------------------------------
                                                                                             Gas Properties of Virginia
                               Gas Properties of the St. Louis     Gas Properties of Gulf        Electric and Power
                                     County Gas Co.-1942         States Utilities Co.-1940            Co.-1940
                               -------------------------------   -------------------------   --------------------------
 
                                                    Percent of                  Percent of                   Percent of
                                                    estimated                    estimated                    estimated
                                                     loss of                      loss of                      loss of
                                                    economies                    economies                    economies
                                   Amount              to:           Amount         to:        Amount            to:
                                 ----------        ----------       --------    ----------   ----------      ---------- 
 
  <S>                            <C>              <C>              <C>          <C>            <C>           <C>
 
Operating Revenues               $2,748,770             5.85%       $638,711        6.58%*   $1,057,000           3.38%
 
Operating Revenue                 2,009,757             8.01%        444,006        9.46%*      735,294           4.86%
  Deductions/1/
 
Gross Income/2/                     742,027            21.68%        201,594       20.85%*      317,890          11.25%
 
Net Income/2/                       661,110            24.34%        166,402       25.25%*      168,412          21.23%

Estimated Loss of Economies         160,900                           42,024                     35,750
 
</TABLE>
NOTES

/1/  Excludes federal income taxes.

/2/  Before deducting federal income taxes.

*    Based on estimated cost increases rejected by the Commission as
     "overstated" and "doubtful." In re Engineers Public Service Co., 12 SEC 41,
     80-81 (Sept. 16, 1942).

                                       5


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