MIDAMERICAN ENERGY HOLDINGS CO
S-4/A, 1996-03-13
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<PAGE>
   
     AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON MARCH 13, 1996
    
   
                                                      REGISTRATION NO. 333-01645
    
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
 
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
                            ------------------------
 
   
                                 PRE-EFFECTIVE
                                AMENDMENT NO. 1
                                       TO
                                    FORM S-4
    
                             REGISTRATION STATEMENT
                                     UNDER
                           THE SECURITIES ACT OF 1933
                            ------------------------
 
                      MIDAMERICAN ENERGY HOLDINGS COMPANY
 
             (Exact Name of Registrant as Specified in Its Charter)
 
<TABLE>
<S>                                        <C>                                        <C>
                  IOWA                                       4924                                    42-1451822
    (State or Other Jurisdiction of              (Primary Standard Industrial                     (I.R.S. Employer
     Incorporation or Organization)              Classification Code Number)                   Identification Number)
</TABLE>
 
                                666 GRAND AVENUE
                                  P.O. BOX 657
                          DES MOINES, IOWA 50303-0657
                  ATTN: PAUL J. LEIGHTON, CORPORATE SECRETARY
                                 (515) 242-4300
  (Address, Including Zip Code, and Telephone Number, Including Area Code, of
                   Registrant's Principal Executive Offices)
 
                                PAUL J. LEIGHTON
                     VICE PRESIDENT AND CORPORATE SECRETARY
                           MIDAMERICAN ENERGY COMPANY
                                666 GRAND AVENUE
                                  P.O. BOX 657
                          DES MOINES, IOWA 50303-0657
                                 (515) 242-4300
 (Names, Addresses, Including Zip Codes, and Telephone Numbers, Including Area
                         Codes, of Agents for Service)
 
                         ------------------------------
 
                                   COPIES TO:
 
<TABLE>
<S>                                         <C>
          R. Todd Vieregg, P.C.                       Douglas W. Hawes, Esq.
             Sidley & Austin                  LeBoeuf, Lamb, Greene & MacRae, L.L.P.
         One First National Plaza                      125 West 55th Street
         Chicago, Illinois 60603                     New York, New York 10019
</TABLE>
 
                            ------------------------
 
   
    Approximate  date of commencement of proposed sale to the public: As soon as
practicable after this  Registration Statement becomes  effective and all  other
conditions  to the  Share Exchange  between MidAmerican  Energy Company  and the
Registrant pursuant to the Agreement and Plan of Exchange described in the Proxy
Statement/Prospectus forming a  part of this  Registration Statement, have  been
satisfied or waived.
    
 
    If  the  securities  being registered  on  this  form are  being  offered in
connection with the formation of a holding company and there is compliance  with
General Instruction G, check the following box. / /
                            ------------------------
 
   
    THE  REGISTRANT HEREBY  AMENDS THIS REGISTRATION  STATEMENT ON  SUCH DATE OR
DATES AS MAY BE NECESSARY TO DELAY ITS EFFECTIVE DATE UNTIL THE REGISTRANT SHALL
FILE A  FURTHER  AMENDMENT  WHICH SPECIFICALLY  STATES  THAT  THIS  REGISTRATION
STATEMENT  SHALL THEREAFTER BECOME EFFECTIVE IN  ACCORDANCE WITH SECTION 8(A) OF
THE SECURITIES ACT OR UNTIL THE REGISTRATION STATEMENT SHALL BECOME EFFECTIVE ON
SUCH DATE  AS  THE  COMMISSION,  ACTING  PURSUANT  TO  SAID  SECTION  8(A),  MAY
DETERMINE.
    
 
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
<PAGE>
                      MIDAMERICAN ENERGY HOLDINGS COMPANY
                             CROSS REFERENCE SHEET
                   PURSUANT TO ITEM 501(B) OF REGULATION S-K
 
<TABLE>
<CAPTION>
FORM S-4 -- ITEM NO. AND CAPTION                                                       PROXY STATEMENT/PROSPECTUS
- -------------------------------------------------------------------------------  --------------------------------------
<C>        <S>                                                                   <C>
       A.  INFORMATION ABOUT THE TRANSACTION
       1.  Forepart of Registration Statement and Outside Front Cover Page of
            Prospectus.........................................................  Facing Page of Registration Statement;
                                                                                  Cross Reference Sheet; Cover Page of
                                                                                  Prospectus
       2.  Inside Front and Outside Back Cover Pages of Prospectus.............  Available Information; Incorporation
                                                                                  by Reference; Table of Contents
       3.  Risk Factors, Ratio of Earnings to Fixed Charges, and Other
            Information........................................................  Summary of Holding Company Proposal;
                                                                                  Incorporation by Reference;
                                                                                  MidAmerican Common Stock Market
                                                                                  Prices and Dividends
       4.  Terms of the Transaction............................................  Summary of Holding Company Proposal;
                                                                                  The Holding Company Proposal; Annex I
       5.  PRO FORMA Financial Information.....................................  Incorporation by Reference
       6.  Material Contacts With the Company Being Acquired...................  The Holding Company Proposal
       7.  Additional Information Required for Reoffering by Persons and
            Parties Deemed to be Underwriters..................................  Not Applicable
       8.  Interest of Named Experts and Counsel...............................  The Holding Company Proposal; Legal
                                                                                  Matters; Experts
       9.  Disclosure of Commission Position on Indemnification For Securities
            Act Liabilities....................................................  Not Applicable
</TABLE>
<PAGE>
<TABLE>
<CAPTION>
FORM S-4 -- ITEM NO. AND CAPTION                                                       PROXY STATEMENT/PROSPECTUS
- -------------------------------------------------------------------------------  --------------------------------------
<C>        <S>                                                                   <C>
       B.  INFORMATION ABOUT THE REGISTRANT
      10.  Information With Respect to S-3 Registrants.........................  Available Information; Incorporation
                                                                                  by Reference; The Holding Company
                                                                                  Proposal
      11.  Incorporation of Certain Information by Reference...................  Available Information; Incorporation
                                                                                  by Reference; The Holding Company
                                                                                  Proposal
      12.  Information with Respect to S-2 or S-3 Registrants..................  Not Applicable
      13.  Incorporation of Certain Information by Reference...................  Not Applicable
      14.  Information with Respect to Registrants Other Than S-3 or S-2
            Registrants........................................................  Not Applicable
       C.  INFORMATION ABOUT THE COMPANY BEING ACQUIRED
      15.  Information With Respect to S-3 Companies...........................  Available Information; Incorporation
                                                                                  by Reference; The Holding Company
                                                                                  Proposal
      16.  Information With Respect to S-2 or S-3 Companies....................  Not Applicable
      17.  Information With Respect to Companies Other Than S-2 and S-3
            Companies..........................................................  Not Applicable
       D.  VOTING AND MANAGEMENT INFORMATION
      18.  Information if Proxies, Consents or Authorizations Are to be
            Solicited..........................................................  Incorporation by Reference; Meetings,
                                                                                  Election of Directors; Summary of
                                                                                  Holding Company Proposal; The Holding
                                                                                  Company Proposal; 1997 Shareholder
                                                                                  Proposals
      19.  Information if Proxies, Consents or Authorizations Are Not to be
            Solicited, or in an Exchange Offer.................................  Not Applicable
</TABLE>
<PAGE>
                           MIDAMERICAN ENERGY COMPANY
                                666 GRAND AVENUE
                                  P.O. BOX 657
                           DES MOINES, IA 50303-0657
 
Dear Shareholder:
 
    You are cordially invited to attend the first Annual Meeting of Shareholders
of MidAmerican Energy Company ("Company") which will be held on Wednesday, April
24,  1996 at the  Airport Holiday Inn,  6111 Fleur Drive,  Des Moines, Iowa. The
meeting will start at 10:00 a.m., local time.
 
    At this important  meeting you  will be  asked to  vote on  the election  of
directors  for the  ensuing year, to  act on a  proposed corporate restructuring
whereby the Company  will become  a subsidiary of  a new  holding company  named
MidAmerican  Energy  Holdings  Company  ("Holdings")  and  to  approve  the 1995
Long-Term Incentive Plan.  The Board of  Directors of the  Company recommends  a
vote "FOR" the election of all nominees and each of the proposals.
 
    The  accompanying Proxy  Statement/Prospectus discusses the  reasons for and
the benefits of the proposed corporate  restructuring. You are urged to read  it
and the Annexes thereto carefully.
 
    The  Board of Directors believes that the holding company structure, similar
to that of Midwest Resources Inc. and Midwest Power Systems Inc. prior to  their
July 1, 1995 merger with Iowa-Illinois Gas and Electric Company that created the
Company,  will prove  beneficial to the  shareholders of  MidAmerican. A holding
company structure is expected  to provide a more  flexible organization that  is
better positioned to operate in the increasingly competitive energy market place
and to take advantage of new growth opportunities.
 
    Holdings  has been organized to implement this new structure. It is proposed
that  outstanding  shares  of  MidAmerican  Common  Stock  be  exchanged,  on  a
share-for-share  basis, for  shares of Holdings  Common Stock. As  a result, the
holders of MidAmerican Common Stock will  become the holders of Holdings  Common
Stock, and Holdings will become the owner of MidAmerican Common Stock.
 
    If  approved by the requisite  vote of the shareholders  and if all required
regulatory approvals are received,  the exchange will  occur in accordance  with
the terms set forth in the Agreement and Plan of Exchange described in the Proxy
Statement/Prospectus  and attached  as Annex I  thereto. It  is anticipated that
this will occur during  1996. Iowa law  provides that a majority  of all of  the
votes  entitled to be cast  by each class of shares  included in the exchange is
required to approve the exchange. Therefore, approval of the Agreement and  Plan
of  Exchange  will require  the affirmative  vote  of the  holders of  shares of
MidAmerican Common Stock  representing a majority  of all votes  entitled to  be
cast by all holders of MidAmerican Common Stock.
 
    If  the new structure is effected, it will  not be necessary for you to turn
in your MidAmerican Common  Stock certificates in  exchange for Holdings  Common
Stock  certificates. The certificates for MidAmerican  Common Stock you now hold
will automatically represent shares of  Holdings Common Stock. New  certificates
bearing  the name of Holdings  will be issued in  the future as certificates for
presently outstanding  shares  of MidAmerican  Common  Stock are  presented  for
transfer.
 
    The  restructuring  will not  affect  the tax  basis  of your  investment in
MidAmerican  Common  Stock.   The  MidAmerican  preferred   stock  will   remain
outstanding after the restructuring.
 
    Holders  of record of MidAmerican  Common Stock at the  close of business on
February 26, 1996 will be entitled to one vote for each share held.  MidAmerican
has over 69,000 holders of its Common Stock.
 
    Your  vote is  extremely important.  Please make  sure that  your shares are
represented at the  Annual Meeting  whether or not  you are  personally able  to
attend.  You are encouraged  to specify your choices  by marking the appropriate
boxes on the enclosed proxy card. However,  it is not necessary to mark any  box
if you wish to vote in accordance with the Board of Directors' recommendations.
<PAGE>
    Holders  of  MidAmerican  Common  Stock  have  the  right  to  dissent  from
consummation of the  share exchange,  and, upon compliance  with the  procedural
requirements  of the Iowa Business Corporation  Act, to receive the "fair value"
of their shares  if the share  exchange is  effected. Reference is  made to  the
detailed  information regarding dissenters' rights contained in the accompanying
Proxy Statement/Prospectus.
 
    Please sign, date  and return the  proxy card in  the enclosed postage  paid
envelope.
 
                                   Sincerely,
 
<TABLE>
<S>                     <C>
Russell E.              Stanley J.
Christiansen            Bright
CHAIRMAN                PRESIDENT
</TABLE>
 
                     OFFICE OF THE CHIEF EXECUTIVE OFFICER
 
March 18, 1996
<PAGE>
                           MIDAMERICAN ENERGY COMPANY
                                666 GRAND AVENUE
                                  P.O. BOX 657
                           DES MOINES, IA 50303-0657
              TELEPHONE NUMBERS: (515) 242-4300 OR (800) 247-5211
 
                            ------------------------
 
                    NOTICE OF ANNUAL MEETING OF SHAREHOLDERS
 
                             ---------------------
 
To the Shareholders of
MidAmerican Energy Company:
 
    The  Annual Meeting  of Shareholders of  MidAmerican Energy  Company will be
held on Wednesday, April 24, 1996, at the Airport Holiday Inn, 6111 Fleur Drive,
Des Moines,  Iowa, commencing  at 10:00  a.m., local  time, for  the purpose  of
acting on the following matters:
 
    1.  To elect seventeen members of the Board of Directors;
 
    2.  To consider and vote upon a proposal to approve an Agreement and Plan of
       Exchange, dated as of January 24, 1996 between MidAmerican Energy Company
       and MidAmerican Energy Holdings Company, which provides for the formation
       of  a holding  company and whereby  each issued and  outstanding share of
       common stock  of the  Company, no  par  value, will  be exchanged,  on  a
       share-for-share  basis, for one share of common stock of Holdings, no par
       value, except for those  shareholders exercising dissenters' rights,  all
       as  more fully described in  the accompanying Proxy Statement/Prospectus;
       and
 
    3.  To consider and vote upon  a proposal to approve the MidAmerican  Energy
       Company 1995 Long-Term Incentive Plan.
 
    Holders of MidAmerican Common Stock at the close of business on February 26,
1996  will  be entitled  to notice  of  and to  vote at  the  meeting or  at any
postponement or adjournment thereof. EVEN IF YOU NOW EXPECT TO ATTEND THE ANNUAL
MEETING,  YOU  ARE  REQUESTED  TO  PLEASE  MARK,  SIGN,  DATE  AND  RETURN   THE
ACCOMPANYING  PROXY IN THE ENCLOSED POSTAGE PAID  ENVELOPE. If you do attend you
may vote in person, if you wish, whether or not you have sent in your proxy.
 
    Holders  of  MidAmerican  Common  Stock  have  the  right  to  dissent  from
consummation  of the  Share Exchange, and,  upon compliance  with the procedural
requirements of the Iowa Business Corporation  Act, to receive the "fair  value"
of their shares if the share exchange is effected. See "Holding Company Proposal
- -- Dissenters' Rights" in the Proxy Statement/Prospectus.
 
                                          By Order of the Board of Directors
                                          Paul J. Leighton
                                          VICE PRESIDENT AND CORPORATE SECRETARY
March 18, 1996
 
IT  IS IMPORTANT  THAT YOUR  SHARES ARE  REPRESENTED AND  VOTED AT  THE MEETING.
SHAREHOLDERS ARE URGED TO PROMPTLY MARK, SIGN, DATE AND RETURN THE PROXY IN  THE
ENCLOSED POSTAGE PAID ENVELOPE.
<PAGE>
                                PROXY STATEMENT
                                      FOR
                           MIDAMERICAN ENERGY COMPANY
                             ---------------------
 
                                   PROSPECTUS
                                      FOR
                      MIDAMERICAN ENERGY HOLDINGS COMPANY
                           COMMON STOCK, NO PAR VALUE
 
    This  Proxy Statement/Prospectus  has been  prepared in  connection with the
issuance of up to  100,751,713 shares of common  stock, no par value  ("Holdings
Common  Stock"),  of MidAmerican  Energy Holdings  Company, an  Iowa corporation
("Holdings"), upon  the  consummation of  the  proposed share  exchange  between
MidAmerican Energy Company, an Iowa corporation ("MidAmerican" or "Company") and
Holdings.
 
    At the effective time of such share exchange, each share of common stock, no
par  value, of MidAmerican ("MidAmerican Common  Stock") will, without action on
the part of  the holder  thereof, be automatically  exchanged for  one share  of
Holdings Common Stock.
THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
    EXCHANGE  COMMISSION OR ANY  STATE SECURITIES COMMISSION  NOR HAS THE
       SECURITIES AND EXCHANGE  COMMISSION OR  ANY STATE  SECURITIES
            COMMISSION  PASSED UPON THE  ACCURACY OR ADEQUACY OF
                THIS PROSPECTUS. ANY REPRESENTATION TO  THE
                           CONTRARY IS A CRIMINAL OFFENSE.
 
    The  executive offices of  each MidAmerican and Holdings  are located at 666
Grand Avenue,  P.O. Box  657, Des  Moines, Iowa  50303-0657, and  the  telephone
number at such address is (515) 242-4300.
 
    The  date of this  Proxy Statement/Prospectus is March  18, 1996. This Proxy
Statement/Prospectus is first being mailed to the shareholders of MidAmerican on
or about March 18, 1996.
 
    No  person  is  authorized   to  give  any  information   or  to  make   any
representation  other than those contained or  incorporated by reference in this
Proxy  Statement/Prospectus,  and,  if  given  or  made,  such  information   or
representation  should not be relied upon  as having been authorized. This Proxy
Statement/Prospectus does not constitute an offer to sell, or a solicitation  of
an offer to purchase, the securities offered by this Proxy Statement/Prospectus,
or  the solicitation of a  proxy, in any jurisdiction, to  or from any person to
whom or from whom it is unlawful to make such offer, solicitation of an offer or
proxy solicitation  in such  jurisdiction. Neither  the delivery  of this  Joint
Proxy  Statement/ Prospectus nor any distribution of securities pursuant to this
Proxy Statement/Prospectus shall, under any circumstances, create an implication
that there has been no change in the information set forth herein since the date
of this Proxy Statement/Prospectus, or that the information contained herein, or
incorporated by reference, is correct as of any time subsequent to its date.
 
                             AVAILABLE INFORMATION
 
    MidAmerican is subject to the  informational requirements of the  Securities
Exchange Act of 1934, as amended ("Exchange Act"), and accordingly files reports
and  other information with the Securities and Exchange Commission ("SEC"). Such
reports, proxy statements and other information filed with the SEC are available
for inspection and copying at the public reference facilities maintained by  the
SEC  at Room  1024, Judiciary  Plaza, 450  Fifth Street,  N.W., Washington, D.C.
20549, and at the  SEC's Regional Offices located  at Citicorp Center, 500  West
Madison  Street, Suite  1400, Chicago, Illinois  60661-2511, and  at Seven World
Trade Center, Suite 1300, New York, New York 10048. Copies of such documents may
also  be   obtained   from  the   Public   Reference   Room  of   the   SEC   at
<PAGE>
Judiciary  Plaza, 450 Fifth Street, N.W.,  Washington, D.C. 20549, at prescribed
rates. In addition, any such material and other information can be inspected  at
the  New York Stock Exchange, Inc. ("NYSE"), 20 Broad Street, New York, New York
10005.
 
    Holdings will  become  subject to  the  same informational  requirements  as
MidAmerican   following   the   share   exchange   described   in   this   Proxy
Statement/Prospectus,  and  will  file  reports,  proxy  statements  and   other
information with the SEC in accordance with the Exchange Act.
 
    This  Proxy  Statement/Prospectus  constitutes  a  part  of  a  registration
statement,  together  with  all  amendments,  schedules  and  exhibits   thereto
("Registration  Statement"), filed by Holdings with the SEC under the Securities
Act of 1933,  as amended,  ("Securities Act").  This Proxy  Statement/Prospectus
does not contain all of the information set forth in the Registration Statement,
certain  parts of which are omitted in accordance with the rules and regulations
of the SEC. The Registration Statement, including any amendments, schedules  and
exhibits  thereto, is available  for inspection and copying  as set forth above.
Reference is made to  the copy of  each contract or other  document filed as  an
exhibit to the Registration Statement or such other document.
 
                           INCORPORATION BY REFERENCE
 
    THIS  PROXY STATEMENT/PROSPECTUS  INCORPORATES DOCUMENTS  BY REFERENCE WHICH
ARE NOT PRESENTED HEREIN  OR DELIVERED HEREWITH.  THESE DOCUMENTS ARE  AVAILABLE
UPON  REQUEST FROM PAUL J. LEIGHTON, VICE PRESIDENT AND CORPORATE SECRETARY, 666
GRAND  AVENUE,  P.O.   BOX  657,   DES  MOINES,   IOWA  50303-0657   (TELEPHONE:
515-242-4300).  TO  ENSURE  TIMELY DELIVERY  OF  DOCUMENTS PRIOR  TO  THE ANNUAL
MEETING, A REQUEST FOR SUCH DOCUMENTS SHOULD BE MADE BY APRIL 4, 1996.
 
    MidAmerican hereby  undertakes to  provide without  charge to  each  person,
including any beneficial owner to whom a copy of this Proxy Statement/Prospectus
has  been delivered,  upon the written  or oral  request of such  person, a copy
(without exhibits, except those specifically  incorporated by reference) of  any
and  all  of  the  documents  referred  to  below  which  have  been  or  may be
incorporated in this Proxy Statement/Prospectus by reference. Requests for  such
documents should be directed to the person indicated above.
 
    The  following  document,  previously filed  with  the SEC  pursuant  to the
Exchange Act, is hereby incorporated by reference:
 
    MidAmerican Annual Report on Form 10-K for the year ended December 31,  1995
    (File No. 1-11505).
 
    All  documents filed by MidAmerican pursuant  to Section 13(a), 13(c), 14 or
15(d) of the Exchange  Act after the date  hereof and prior to  the date of  the
Annual  Meeting on April 24, 1996, and  any adjournment thereof, shall be deemed
to be  incorporated  by reference  herein  and to  be  a part  hereof  from  the
respective  dates of filing of such documents (such documents, and the documents
enumerated above, being  hereinafter referred to  as "Incorporated  Documents.")
Any  statement  contained in  an  Incorporated Document  shall  be deemed  to be
modified or superseded for  purposes of this  Proxy Statement/Prospectus to  the
extent  that a  statement contained  herein or  in any  other subsequently filed
Incorporated Document modifies or supersedes such statement. Any such  statement
so  modified  or  superseded shall  not  be  deemed, except  as  so  modified or
superseded, to constitute a part of this Proxy Statement/Prospectus.
 
                                       2
<PAGE>
                               TABLE OF CONTENTS
 
<TABLE>
<CAPTION>
                                                                                                             PAGE
                                                                                                           ---------
<S>                                                                                                        <C>
AVAILABLE INFORMATION....................................................................................      Cover
INCORPORATION BY REFERENCE...............................................................................          2
SUMMARY OF HOLDING COMPANY PROPOSAL......................................................................          4
GENERAL INFORMATION......................................................................................          7
ELECTION OF DIRECTORS....................................................................................          8
  Information about Nominees for Directors...............................................................          8
  Organization of the Board of Directors.................................................................         12
  Directors' Compensation................................................................................         13
SECURITIES OWNERSHIP OF CERTAIN BENEFICIAL
  OWNERS AND MANAGEMENT..................................................................................         14
EXECUTIVE COMPENSATION...................................................................................         16
  Compensation Committee Report on Executive Compensation................................................         19
  Shareholder Return Performance Graph...................................................................         22
  Retirement Plans.......................................................................................         23
  Employment Agreements..................................................................................         24
HOLDING COMPANY PROPOSAL.................................................................................         26
  General................................................................................................         26
  Corporate Organization.................................................................................         27
  MidAmerican Utility Regulation.........................................................................         28
  Reasons for the Holding Company Proposal...............................................................         28
  Employment Agreements..................................................................................         30
  Agreement and Plan of Exchange.........................................................................         30
  Required Shareholder Approval..........................................................................         30
  Required Regulatory Approvals..........................................................................         31
  Regulation of Holdings.................................................................................         31
  Business of Holdings...................................................................................         32
  Dividend Policy........................................................................................         32
  Treatment of Preferred Stock...........................................................................         33
  Amendment or Termination...............................................................................         33
  Dissenters' Rights.....................................................................................         33
  Effective Date of the Share Exchange...................................................................         35
  Exchange of Stock Certificates Not Required............................................................         35
  Certain Federal Income Tax Consequences................................................................         35
  Management.............................................................................................         37
  Holdings Capital Stock.................................................................................         37
  Stock Plans............................................................................................         37
  MidAmerican Common Stock Market Prices and Dividends...................................................         38
  Experts................................................................................................         38
  Legal Matters..........................................................................................         38
PROPOSAL TO APPROVE AND ADOPT THE MIDAMERICAN ENERGY COMPANY 1995 LONG-TERM INCENTIVE PLAN...............         38
RELATIONSHIP WITH INDEPENDENT PUBLIC ACCOUNTANTS.........................................................         44
1997 SHAREHOLDER PROPOSALS...............................................................................         44
OTHER MATTERS............................................................................................         44
Annex I   Agreement and Plan of Exchange.................................................................        I-1
Annex II   Restated Articles of Incorporation of Holdings................................................       II-1
Annex III  Iowa Business Corporation Act-Dissenters' Rights Provisions...................................      III-1
Annex IV  MidAmerican Energy Company 1995 Long-Term Incentive Plan.......................................       IV-1
</TABLE>
 
                                       3
<PAGE>
                      SUMMARY OF HOLDING COMPANY PROPOSAL
 
DESCRIPTION OF HOLDING COMPANY PROPOSAL
 
    The  following is  a summary  of certain  information regarding  the holding
company  proposal  contained  or  incorporated   by  reference  in  this   Proxy
Statement/Prospectus  and the  accompanying Annexes.  Shareholders are  urged to
read this Proxy Statement/Prospectus and the Annexes in their entirety.
 
    MidAmerican proposes to form a holding company (Holdings) which will own all
of the outstanding common  stock of MidAmerican  and its subsidiaries  ("Holding
Company Proposal"). The Board of Directors and management of MidAmerican believe
that  a holding company structure will provide a more flexible organization that
is better positioned to  operate in the  increasingly competitive energy  market
place  and to  respond to  new growth  opportunities. The  restructuring will be
accomplished through  a  share-for-share  exchange  ("Share  Exchange")  whereby
holders  of MidAmerican Common  Stock will receive one  share of Holdings Common
Stock in exchange for each share of MidAmerican Common Stock as set forth in the
Agreement and Plan of Exchange dated as of January 24, 1996 between  MidAmerican
and Holdings ("Agreement").
 
    The  Company has  received an  opinion of counsel  that Holdings  has a good
faith basis to  claim an  exemption from the  provisions of  the Public  Utility
Holding  Company Act of  1935, as amended ("Holding  Company Act"). See "Holding
Company Proposal -- Regulation of Holdings."
 
PROPOSED SHARE EXCHANGE
 
    Subject to shareholder and regulatory  approvals, each share of  MidAmerican
Common  Stock will be  exchanged for one  share of Holdings  Common Stock. It is
anticipated that such approvals shall be received and the Share Exchange will be
completed prior to the end of  1996. See "Holding Company Proposal --  Effective
Date  of the Share Exchange." The Share  Exchange will be effected in accordance
with a procedure for statutory share  exchanges as allowed by the Iowa  Business
Corporation  Act ("IBCA").  If the Holding  Company Proposal is  approved by the
holders of MidAmerican Common Stock as specified in "Required Vote," below, upon
the effectiveness of the  Share Exchange, each holder  of outstanding shares  of
MidAmerican Common Stock will be deemed to have exchanged such shares for shares
of  Holdings  Common Stock  whether or  not such  holder voted  in favor  of the
Holding Company Proposal.
 
REASONS FOR THE HOLDING COMPANY PROPOSAL
 
    The principal reason  for the  proposed restructuring of  MidAmerican is  to
create  an organizational structure that will be better positioned to operate in
a more competitive environment. The utility industry in general is changing  and
becoming  increasingly competitive, in both the  electric and gas sectors and on
both the wholesale and retail levels,  due to a variety of regulatory,  economic
and  technological  developments. MidAmerican  believes  that a  holding company
structure  will  provide  a  greater  degree  of  flexibility  and  an  enhanced
capability   to  address  the  changes  associated  with  operating  in  a  more
competitive market place and to take advantage of new growth opportunities.  The
holding  company structure is commonly  used in the utility  industry as well as
others to  conduct  different lines  of  business  and is  expected  to  provide
MidAmerican  a  flexible framework  within which  to  conduct its  regulated and
nonregulated operations.  See  "Holding  Company Proposal  --  Reasons  for  the
Holding Company Proposal."
 
REGULATORY APPROVALS
 
    Consummation  of the  Share Exchange  is conditioned  upon receiving certain
orders from the Illinois Commerce  Commission ("ICC"), the Iowa Utilities  Board
("IUB"),  the  Federal Energy  Regulatory  Commission ("FERC")  and  the Nuclear
Regulatory Commission ("NRC").
 
EFFECTIVENESS
 
    The Share  Exchange will  be  effective as  soon  as practicable  after  the
receipt  of regulatory and shareholder  approvals. See "Holding Company Proposal
- -- Effective Date of the Share Exchange."
 
                                       4
<PAGE>
NO EXCHANGE OF CERTIFICATES
 
    If the Share Exchange is effected, it  will not be necessary for holders  of
Common   Stock  to  exchange   their  existing  stock   certificates  for  stock
certificates of Holdings.  See "Holding  Company Proposal --  Exchange of  Stock
Certificates Not Required."
 
STOCK EXCHANGE LISTING
 
    The  MidAmerican  Common Stock  is currently  listed  on the  NYSE. Holdings
intends to apply to list the Holdings  Common Stock on the NYSE. It is  expected
that  such listing  will become  effective on  the effective  date of  the Share
Exchange, subject to  the rules of  the NYSE. See  "Holding Company Proposal  --
Listing of Holdings Common Stock."
 
DIVIDEND POLICY
 
    Dividends  on Holdings Common  Stock will depend  primarily on the earnings,
financial condition  and capital  requirements  of its  subsidiaries,  including
MidAmerican, and the subsidiaries' ability to pay dividends on their stock owned
by  Holdings. Although MidAmerican and Holdings are currently unable to make any
assurances with regard to the payment of dividends, it is currently contemplated
that Holdings will initially pay quarterly dividends on Holdings Common Stock at
the rate most recently paid,  and on the same  schedule, as dividends have  been
paid  on MidAmerican  Common Stock.  See "Holding  Company Proposal  -- Dividend
Policy."
 
CERTAIN FEDERAL INCOME TAX CONSEQUENCES
 
    It is intended that  the exchange of MidAmerican  Common Stock for  Holdings
Common  Stock in the Share Exchange will not be taxable under federal income tax
laws, and it  is a condition  for the  Share Exchange to  become effective  that
MidAmerican  receive either an opinion of counsel  or a ruling from the Internal
Revenue Service satisfactory to the Company  with respect to the federal  income
tax consequences of the Share Exchange. See "Holding Company Proposal -- Certain
Federal Income Tax Consequences."
 
REQUIRED VOTE
 
    Approval  of the Holding Company Proposal  will require the affirmative vote
of the holders  of a majority  of the outstanding  shares of MidAmerican  Common
Stock. Abstentions and "non-votes" (i.e., shares held by brokers, fiduciaries or
other  nominees which are not permitted to  vote on the Holding Company Proposal
due to the absence  of instructions from beneficial  owners) will have the  same
effect  as negative votes. THE  FAILURE TO VOTE ON  THE HOLDING COMPANY PROPOSAL
WILL HAVE THE SAME EFFECT AS A  NEGATIVE VOTE. See "Holding Company Proposal  --
Required Shareholder Approval."
 
    The  vote  of  MidAmerican  shareholders in  favor  of  the  Holding Company
Proposal will  be  deemed  to  be  ratification  by  such  shareholders  of  the
assumption  by  Holdings  of  the  MidAmerican  Energy  Company  1995  Long-Term
Incentive Plan and other stock-related  benefit plans upon effectiveness of  the
Share Exchange. See "Holding Company Proposal -- Stock Plans."
 
RIGHTS OF DISSENTING SHAREHOLDERS
 
    The  holders of record of MidAmerican Common Stock have the right to dissent
from consummation of the Share Exchange and, upon compliance with the procedural
requirements of the IBCA,  to receive the  "fair value" of  their shares if  the
Share Exchange is effected. Any such holders electing to exercise their right of
dissent must deliver to MidAmerican before the vote is taken a written notice of
their  intent to demand payment  of the fair value of  their shares if the Share
Exchange is consummated  and not  vote to  approve the  Agreement. See  "Holding
Company Proposal -- Dissenters' Rights" and Annex III.
 
ELECTION OF DIRECTORS
 
    The  Directors of MidAmerican will become the Directors of Holdings upon the
effectiveness of the  Share Exchange, and  they will serve  as the Directors  of
Holdings  until the first annual meeting  of Holdings shareholders. See "Holding
Company Proposal -- Management."
 
                                       5
<PAGE>
    Each of Messrs. Russell  E. Christiansen and Stanley  J. Bright has  entered
into an employment agreement with Holdings to become effective upon consummation
of  the Share Exchange  (together, the "Employment  Agreements"). The Employment
Agreements are  in  all  material  respects  identical  to  and  will  supersede
employment agreements entered into effective as of July 1, 1995 and currently in
effect  between MidAmerican and Messrs.  Bright and Christiansen. See "Executive
Compensation -- Employment Agreements."
 
    THE MIDAMERICAN BOARD  OF DIRECTORS HAS  UNANIMOUSLY APPROVED THE  AGREEMENT
AND  THE SHARE EXCHANGE CONTEMPLATED THEREBY, AND RECOMMENDS THAT THE HOLDERS OF
MIDAMERICAN COMMON STOCK VOTE  "FOR" APPROVAL OF THE  AGREEMENT AND THE  HOLDING
COMPANY PROPOSAL.
 
                                       6
<PAGE>
                              GENERAL INFORMATION
 
    This   Proxy  Statement/Prospectus  is  furnished  in  connection  with  the
solicitation of  proxies  of  the shareholders  of  MidAmerican  Energy  Company
("Company")  on  behalf of  the Board  of  Directors of  the Company  ("Board of
Directors") for use  at the Annual  Meeting of  Shareholders to be  held at  the
Airport Holiday Inn, 6111 Fleur Drive, Des Moines, Iowa, on Wednesday, April 24,
1996,  at  10:00 a.m.,  local time,  and  at all  adjournments thereof,  for the
purposes set forth in the preceding Notice of Annual Meeting of Shareholders.
 
    This is the first annual meeting of the holders of MidAmerican Common  Stock
since  the July 1, 1995 merger  of Midwest Resources Inc. ("Midwest Resources"),
Midwest Power Systems Inc. ("Midwest Power") and Iowa-Illinois Gas and  Electric
Company  ("Iowa-Illinois")  with  and  into  the  Company  (the  "Merger"). Only
shareholders of  record  at the  close  of business  on  February 26,  1996  are
entitled  to vote at the meeting. As  of the record date, there were outstanding
100,751,713 shares of MidAmerican Common Stock. Each share of MidAmerican Common
Stock is entitled to one vote on all matters presented to the meeting.
 
    With respect  to Item  1  of this  Proxy Statement/Prospectus,  Election  of
Directors,  if a quorum  is present, the  affirmative vote of  a majority of the
votes cast  is required  for the  election  of each  director. For  purposes  of
determining  the number  of votes  cast, all  votes cast  "for" or  to "withhold
authority" to vote are included. "Non-votes," including "broker non-votes" which
occur  when  brokers  are  prohibited  from  exercising  voting  authority   for
beneficial owners who have not provided voting instructions, are not counted for
the purpose of determining the number of votes cast with respect to the election
of directors.
 
    Approval  of the Agreement and the Holding  Company Proposal, Item 2 of this
Proxy Statement/ Prospectus, if  a quorum is  present, requires the  affirmative
vote  of  the  holders of  shares  of  MidAmerican Common  Stock  representing a
majority of all votes entitled to be  cast by all holders of MidAmerican  Common
Stock. For purposes of determining the number of votes cast with respect to this
proposal,  all votes cast "for" or  "against" are included. Abstentions will not
be counted as either "for" or "against" this proposal, however, abstentions will
have the practical effect of  an "against" vote. "Non-votes," including  "broker
non-votes,"  are not counted for the purpose  of determining the number of votes
cast with respect to this proposal.
 
    The affirmative  vote of  a  majority of  the votes  cast,  if a  quorum  is
present,  with respect to the adoption of the 1995 Long-Term Incentive Plan, set
forth as Item 3  of this Proxy Statement/Prospectus,  is required for  approval.
For  purposes  of determining  the number  of  votes cast  with respect  to this
proposal, all votes cast "for" or  "against" are included. Abstentions will  not
be  counted as either  "for" or "against"  this proposal. "Non-votes," including
"broker non-votes," are not counted for the purpose of determining the number of
votes cast with respect to this proposal.
 
    Any shareholder giving a proxy  pursuant to this Proxy  Statement/Prospectus
may  revoke it at any time by filing with the Corporate Secretary of the Company
an instrument revoking it or a duly  executed proxy bearing a later date, or  if
the shareholder executing the proxy is present at the meeting, voting in person.
 
    All  shares represented by effective proxies will be voted at the meeting or
any adjournment thereof as specified therein by the person giving the proxy.  If
no  specification is made, the proxy will  be voted in accordance with the Board
of Directors' recommendations.
 
    If a shareholder is a participant in the Company's Shareholder Options  Plan
or  the Iowa Power  Inc. Payroll-Based Employee Stock  Ownership Plan, the proxy
card will represent the  number of shares registered  in the participant's  name
and  the  number of  whole  shares credited  or  allocated to  the participant's
account under these plans. For  those shares held in  the plans, the proxy  card
will  serve as a direction  to the trustee or  voting agent under the respective
plan as to how  the shares in  the accounts are to  be voted. Fractional  shares
will not be voted.
 
                                       7
<PAGE>
    The  entire cost of solicitation of proxies will be borne by the Company. In
addition to the original solicitation by mail, some of the officers and  regular
employees  of the  Company may solicit  proxies by personal  calls, telephone or
otherwise, but without compensation in  addition to their regular salaries.  The
Company  will reimburse brokers  and other custodians,  nominees and fiduciaries
for reasonable  expenses incurred  in forwarding  proxy material  to  beneficial
owners.  In addition, the Company  has retained D. F. King  & Co., Inc., a proxy
solicitation firm, to assist in the forwarding of proxy materials to brokers and
other custodians, nominees and fiduciaries at  an estimated cost of $6,500  plus
disbursements.
 
                                     ITEM 1
                             ELECTION OF DIRECTORS
 
    The  seventeen persons named on the  following pages have been nominated for
election as  directors,  to  hold  office  until  the  next  annual  meeting  of
shareholders  and  their successors  are duly  elected  and qualified.  Each has
consented to be a nominee and to serve if elected. Proxies cannot be voted for a
greater number of persons than the number  of nominees named. In the event  that
any  nominees for directors should become unavailable, which is not anticipated,
the Board of Directors, in its discretion, may designate substitute nominees, in
which event proxies will be voted for such substitute nominees.
 
INFORMATION ABOUT NOMINEES FOR DIRECTORS
 
    Certain information about each nominee, including age, principal occupation,
business experience, directorships, board committee assignments and the year  in
which  the nominee became  a director of  the Company or  one of its predecessor
companies, is set forth in the following  pages. All of the nominees listed  are
now serving as directors of the Company.
 
<TABLE>
<C>              <S>
     PHOTO       JOHN W. AALFS (55)
                 President  of Aalfs  Manufacturing, Inc.  (clothing manufacturer), Sioux
                 City, Iowa, since  1979. Joined the  Board in 1988.  Chair of the  Audit
                 Committee.  Director of  Morningside College,  Norwest Bank  Sioux City,
                 N.A. and Fox Valley Corporation; Member  of the Iowa Group for  Economic
                 Development and the Siouxland Foundation Executive Committee.
 
     PHOTO       BETTY T. ASHER (51)
                 President  and Professor of Educational Psychology and Counseling at the
                 University of South Dakota, Vermillion, South Dakota, since 1989. Joined
                 the Board in 1994.  Member of the Audit  Committee. Director of  Norwest
                 Bank  of  South  Dakota,  N.A.,  Children's  Care  Hospital  and  School
                 Foundation,  Sioux  Valley   Hospital,  University  Physicians,   Family
                 Practice Center and Karl E. Mundt Foundation.
</TABLE>
 
                                       8
<PAGE>
 
<TABLE>
<C>              <S>
     PHOTO       STANLEY J. BRIGHT (55)
                 President  and President of the Office of the Chief Executive Officer of
                 the Company since 1995. Chairman, President and Chief Executive  Officer
                 of  Iowa-Illinois Gas and Electric Company  from 1991 to 1995, President
                 and Chief Operating Officer from 1990 to 1991 and Vice President-Finance
                 and Chief Financial  Officer from 1986  to 1990. Joined  the Company  in
                 1986  and the Board in 1987. Chair of the Strategy Committee, Vice Chair
                 of the Executive Committee and member of the Finance Committee. Director
                 of Association of Edison Illuminating Companies, Des Moines  Development
                 Corporation, Edison Electric Institute, Genesis Medical Center, Illinois
                 Energy  Association, Iowa College  Foundation, Iowa Utility Association,
                 North Central Electric Association, Norwest Bank Iowa, N.A., St. Ambrose
                 University, Synergics, Inc., Utech Venture Capital Corporation and Utilx
                 Corporation; Member of the Board of  Visitors of the University of  Iowa
                 School of Business and Iowa Business Council.
 
     PHOTO       ROBERT A. BURNETT (68)
                 Retired  Chairman  of Meredith  Corporation  (media), Des  Moines, Iowa,
                 since 1992, Chairman from 1989 to 1992 and President and Chief Executive
                 Officer from  1977 to  1989. Joined  the Board  in 1984.  Member of  the
                 Compensation  and Finance  Committees. Director of  ITT Corporation, ITT
                 Hartford, ITT  Industries, Meredith  Corporation, Whirlpool  Corporation
                 and   Business  Enterprise   Trust;  Past  Director   of  Dayton  Hudson
                 Corporation; Member of  the Advisory  Council of  the World  Agriculture
                 Development Foundation; Trustee of Grinnell College.
 
     PHOTO       ROSS D. CHRISTENSEN (55)
                 Orthodontist  in private practice in Waterloo, Iowa, since 1968 and with
                 Drs. Christensen and  Bigelow, P.C.  since 1974. Partner  in JoRo,  Inc.
                 (real  estate development) and Heartland  Midwest Management, Inc. (real
                 estate management) since 1984. Joined the  Board in 1983. Vice Chair  of
                 the  Nominating Committee and member of the Strategy Committee. Director
                 of EURAS USA, Inc.,  Waterloo Industrial Development Association,  Inc.,
                 Community Foundation of Waterloo and Northeast Iowa and the Cedar Valley
                 Economic Development Corp.; President of Village Initiative; Chairman of
                 President's  Resources  Council,  Wartburg College;  Chairman,  Board of
                 Trustees of Silos and Smokestacks; Trustee of R. J. McElroy Trust.
</TABLE>
 
                                       9
<PAGE>
 
<TABLE>
<C>              <S>
     PHOTO       RUSSELL E. CHRISTIANSEN (60)
                 Chairman and Chairman of  the Office of the  Chief Executive Officer  of
                 the  Company since 1995. Chairman and Chief Executive Officer of Midwest
                 Resources Inc. from 1992 to 1995,  President from 1990 to 1995 and  Vice
                 Chairman  and Chief  Operating Officer from  1990 to  1992. Chairman and
                 Chief Executive Officer of Midwest Energy Company from 1986 to 1990  and
                 President from 1985 to 1990. Joined the Company in 1959 and the Board in
                 1983.  Chair  of  the  Executive Committee  and  member  of  the Finance
                 Committee. Director of Greater Des Moines Committee, Greater  Siouxland,
                 Inc.,  McLeod  Inc., North  Central  Electric Association,  Norwest Bank
                 Iowa, N.A.  and  Siouxland  Foundation;  Past  Director  of  Des  Moines
                 Development  Corporation, Edison Electric  Institute, Greater Des Moines
                 Chamber Federation, Iowa Association of  Business and Industry and  Iowa
                 Utility  Association. Member  of the  Iowa Business  Council; Trustee of
                 South Dakota State University Foundation and Iowa Nature Conservancy.
 
     PHOTO       JOHN W. COLLOTON (65)
                 Vice President for Statewide Health Services, University of Iowa (health
                 care administration), Iowa  City, Iowa, since  1993. Director and  Chief
                 Executive  Officer of the University of  Iowa Hospitals and Clinics from
                 1971 to 1993. Joined the Board  in 1992. Member of the Compensation  and
                 Nominating Committees. Director of Baxter International Inc., Iowa State
                 Bank  and Trust  Company, OncorMed,  Inc., Premier  Oncology Networks of
                 America, and Blue Cross & Blue Shield of Iowa and South Dakota;  Trustee
                 of University of Pennsylvania Medical Center.
 
     PHOTO       FRANK S. COTTRELL (53)
                 Vice  President of  Deere &  Company (manufacturing),  Moline, Illinois,
                 since 1993, General Counsel since 1991 and Secretary since 1987.  Joined
                 the Board in 1992. Member of the Audit and Strategy Committees. Director
                 of Homelite, Inc. and William Butterworth Memorial Trust.
 
     PHOTO       JACK W. EUGSTER (50)
                 Chairman   and  Chief  Executive  Officer   of  Musicland  Stores  Corp.
                 (specialty retailer), Minneapolis, Minnesota,  since 1986 and  President
                 since  1981.  Joined  the  Board  in  1987.  Chair  of  the Compensation
                 Committee and member  of the  Executive Committee.  Director of  Damark,
                 Inc.,  Donaldson  Company, Inc.,  Josten's,  Inc., ShopKo  Stores, Inc.,
                 Minnesota Business Partnership, Children's Home Society of Minnesota and
                 Walker Art Center; Trustee of Carleton  College; Member of the Board  of
                 Overseers of the University of Minnesota Carlson School of Management.
</TABLE>
 
                                       10
<PAGE>
 
<TABLE>
<C>              <S>
     PHOTO       MEL FOSTER, JR. (68)
                 Chairman  of Mel Foster Co. Inc. (real estate and insurance), Davenport,
                 Iowa, since 1970.  Joined the  Board in  1972. Chair  of the  Nominating
                 Committee  and  member  of the  Compensation  and  Executive Committees.
                 Director of Norwest  Bank Iowa,  N.A., Quad Cities  Community Board  and
                 Downtown Davenport Development Corporation.
 
     PHOTO       NOLDEN GENTRY (58)
                 Partner  in  the law  firm of  Brick,  Gentry, Bowers,  Swartz, Stoltze,
                 Schuling & Levis, P.C., Des Moines,  Iowa, since 1983. Joined the  Board
                 in  1988. Vice Chair of the Strategy Committee. Director of Delta Dental
                 Plan of  Iowa, Firstar  Bank Iowa,  N.A., Greater  Des Moines  Community
                 Foundation,   Mid-Iowa  Health  Foundation,   Morris  Scholarship  Fund,
                 National "I" Club and Orchard Place.
 
     PHOTO       JAMES M. HOAK, JR. (52)
                 Chairman of Heritage Media  Corporation (broadcasting and  advertising),
                 Dallas, Texas, since 1987, Chairman of Hoak Capital Corporation (private
                 investment  company) since 1991, Chairman and President of James M. Hoak
                 &  Co.  (investment  banking)  and  Hoak  Securities  Corp.  (securities
                 broker-dealer) since 1995. Chairman and Chief Executive Officer of Crown
                 Media,  Inc. (cable television), Dallas, Texas from 1991 to 1995. Joined
                 the Board in  1983. Vice  Chair of  the Finance  Committee. Director  of
                 Airgas,  Inc., Pier  1 Imports,  Inc. and  Texas Industries,  Inc.; Vice
                 Chairman of the American Business Conference.
 
     PHOTO       RICHARD L. LAWSON (66)
                 President and Chief Executive Officer of the National Mining Association
                 (all minable resources), Washington, D. C., since 1995. President of the
                 National Coal  Association and  member  of its  Board of  Directors  and
                 Executive  Committee from 1987 to 1995. Joined the Board in 1989. Member
                 of the  Audit  Committee. President  of  the American  Coal  Foundation;
                 Director  of World Energy Council,  Atlantic Council and National Energy
                 Foundation; Member  of  the  Washington Institute  of  Foreign  Affairs.
                 Retired from the United States Air Force in 1986 as a four star general.
                 Formerly  Deputy Commander and  Chief of the U.  S. European Command and
                 Chief of Staff, Supreme Headquarters Allied Powers, Europe.
 
     PHOTO       ROBERT L. PETERSON (63)
                 Chairman and  Chief Executive  Officer of  IBP, inc.  (meat  processor),
                 Dakota  City, Nebraska,  since 1980,  President since  1977 and Director
                 since 1976.  Joined the  Board  in 1990.  Member  of the  Executive  and
                 Nominating  Committees.  Director of  the  Omaha branch  of  the Federal
                 Reserve Bank of Kansas City; Member of the Iowa Business Council.
</TABLE>
 
                                       11
<PAGE>
 
<TABLE>
<C>              <S>
     PHOTO       NANCY L. SEIFERT (66)
                 Executive Vice President  of James  F. Seifert &  Sons L.L.C.  (retail),
                 Cedar  Rapids, Iowa, since 1993. Retired as a merchandise executive with
                 Seifert's Inc. in  1990. Joined  the Board in  1985. Vice  Chair of  the
                 Compensation  Committee and member of the Strategy Committee. Trustee of
                 Mt. Mercy College and University of North Dakota Foundation.
 
     PHOTO       W. SCOTT TINSMAN (63)
                 Co-Founder and  Vice President  of Twin-State  Engineering and  Chemical
                 Company  (engineering services  and chemical  manufacturing), Davenport,
                 Iowa, since  1958.  Joined the  Board  in  1988. Chair  of  the  Finance
                 Committee  and member of the Audit Committee. Director of Genesis Health
                 System and Genesis Medical Center.
 
     PHOTO       LEONARD L. WOODRUFF (67)
                 President of  Woodruff Construction  Company (contractor),  Fort  Dodge,
                 Iowa,  since 1979. Joined the Board in 1972. Member of the Executive and
                 Finance Committees.  Director of  Calhoun County  Economic  Development,
                 Fort Dodge Betterment Foundation, Fort Dodge YMCA Foundation and Webster
                 County Economic Development.
</TABLE>
 
ORGANIZATION OF THE BOARD OF DIRECTORS
 
    The  Board of Directors has established  the following committees to perform
various delegated functions. The number of meetings shown for each committee are
those held after July  1, 1995, the  effective date of  the Merger creating  the
Company.
 
    The  Audit Committee considers matters pertaining to financial reporting and
internal accounting  controls  and held  one  meeting. The  Executive  Committee
exercises  certain authority of the  Board of Directors on  behalf of the entire
Board and held two meetings. The Finance Committee considers matters  pertaining
to the Company's financing plans, its nonregulated businesses and pension, trust
and  other  investment  activities  and  held  two  meetings.  The  Compensation
Committee considers matters pertaining to compensation of officers and directors
and management succession and administers certain executive officer and director
compensation plans and held three  meetings. The Strategy Committee advises  the
Board  of  Directors on  strategic  matters pertaining  to  the Company  and its
operations and held one meeting.
 
    The Nominating Committee  recommends candidates for  annual election to  the
Board  of Directors  and to fill  vacancies on  the Board of  Directors that may
arise from time to time. The  Nominating Committee held one meeting.  Candidates
will  be selected without regard  to race, creed, color,  sex or national origin
and must be  a citizen of  the United States  and have demonstrated  outstanding
business  and civic accomplishments. The  Nominating Committee will consider all
candidates  recommended  by  shareholders  in  accordance  with  the   procedure
established  in the Company's Restated  Bylaws which requires recommendations to
be submitted  in  writing  ninety days  in  advance  of the  annual  meeting  of
shareholders.  Such recommendations should  include the name  and address of the
shareholder and  the candidate  pursuant to  which the  recommendation is  being
made, such other
 
                                       12
<PAGE>
information  about the candidate as is required  to be included in the Company's
proxy statement and  the consent  of the  candidate to  serve as  a director  if
elected.  Recommendations should be sent to the Corporate Secretary, MidAmerican
Energy Company, P.O. Box 657, Des Moines, Iowa 50303-0657.
 
    The Board  of  Directors of  the  Company  held five  meetings  during  1995
subsequent  to the Merger. All directors attended  at least 75% of the aggregate
number of meetings of the Board of  Directors and the Board Committees on  which
they served, except for General Lawson who attended 71%.
 
DIRECTORS' COMPENSATION
 
    The  Board of Directors  believes it is  important that its  members have an
equity interest in the Company. As a result, the Board of Directors has  adopted
a policy that each director must own at least 1,000 shares of MidAmerican Common
Stock  at the time the  director becomes a member of  the Board of Directors. In
addition, a portion of each non-employee director's compensation for service  as
a  director of  the Company  will be  paid in  restricted shares  of MidAmerican
Common Stock. The MidAmerica Energy Company 1995 Long-Term Incentive Plan, which
is subject to the approval  of the shareholders as described  in Item 3 of  this
Proxy  Statement/Prospectus, sets forth the  provisions of this restricted stock
plan for non-employee  directors. In summary,  the plan provides  that upon  the
initial  election  of  each non-employee  director  to the  Board  of Directors,
whether at an annual  election or to  fill a vacancy,  800 restricted shares  of
MidAmerican  Common  Stock will  be granted  to  each such  director. Additional
grants of  800  restricted shares  of  MidAmerican  Common Stock  will  be  made
annually  on May  1 to each  director who  continues on the  Board of Directors.
Non-employee directors are restricted from  disposing of such restricted  shares
of  MidAmerican Common  Stock until  such time  as the  director ceases  to be a
director of the Company.  Each director who  is not an  employee of the  Company
received  800 restricted shares of MidAmerican  Common Stock in July 1995. Until
the plan is approved by the shareholders, however, such shares are deemed to  be
in  the form of share equivalent units  which will be credited with dividends at
the same  rate  as  that paid  on  the  MidAmerican Common  Stock  and  will  be
distributed  in cash at the current market value of the MidAmerican Common Stock
at the time the director  ceases to be a director  of the Company. In the  event
the plan is not approved by the shareholders, future grants will continue in the
form of share equivalent units as described above.
 
    In  addition  to the  restricted  stock component  of  director compensation
described in the foregoing paragraph, directors each receive an annual  retainer
fee of $12,000. Directors who are not also employees of the Company each receive
a  fee of $750 for attendance at each regular or special meeting of the Board of
Directors and each meeting of a Committee of the Board of Directors.
 
    The Board  of Directors  has elected  not  to adopt  a retirement  plan  for
directors,  although a predecessor company  maintained a nonqualified retirement
plan for its  directors. The  predecessor company entered  into agreements  with
those  directors continuing as directors of the Company (Messrs. Aalfs, Burnett,
Christensen, Christiansen, Eugster,  Gentry, Hoak, Lawson  and Peterson and  Dr.
Asher)  whereby  the  Company agreed  to  vest  accrued benefits  for  each such
director as of June  30, 1995. The  accrued benefit for  each such director  was
determined  by multiplying  the number  of months  of service  as a  director by
one-twelfth of the  then current  annual retainer ($15,000).  The maximum  total
benefit  is based on 120 months of service as a director and the minimum service
requirement was waived. The  accrued benefit is payable  quarterly in cash  when
the  respective director ceases  to be a  director of the  Company in accordance
with the terms of  such retirement plan.  Benefits will be  paid out of  general
corporate funds.
 
    Directors have the opportunity to make an election prior to the commencement
of  any year to defer  a portion or all of  their cash compensation received for
service as a director of the Company pursuant to the MidAmerican Energy  Company
Directors  Deferred  Compensation Plan.  Amounts  previously deferred  or earned
under predecessor companies' deferred compensation plans will be distributed  in
accordance  with each  such plan's respective  provisions upon  termination of a
director's service as a director.
 
                                       13
<PAGE>
        SECURITIES OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT
 
    The following table shows the beneficial ownership, reported to the  Company
as  of February 26, 1996,  of the MidAmerican Common  Stock of each director and
nominee, the  two  individuals comprising  the  office of  the  chief  executive
officer  and the four other most highly compensated executive officers and, as a
group, directors, nominees and executive officers. No member of the group  owned
any  of the  Company's preferred  stock. To  the Company's  knowledge, no single
entity owns of record or beneficially more than five percent of any class of the
outstanding voting securities of the Company.
 
<TABLE>
<CAPTION>
                                                             AMOUNT AND NATURE OF
                                                             BENEFICIAL OWNERSHIP    PERCENT OF
NAME OF BENEFICIAL OWNER                                             (1)                CLASS
- ----------------------------------------------------------  ----------------------  -------------
<S>                                                         <C>                     <C>
John W. Aalfs.............................................           3,880                *
Betty T. Asher............................................           1,839(2)             *
Stanley J. Bright.........................................           7,839(3)             *
Robert A. Burnett.........................................           9,541(4)             *
Ross D. Christensen.......................................           9,496(5)             *
Russell E. Christiansen...................................          16,268(6)             *
John W. Colloton..........................................           1,535                *
Frank S. Cottrell.........................................           2,270                *
Jack W. Eugster...........................................           3,880                *
Mel Foster, Jr............................................          30,790(7)             *
Nolden Gentry.............................................           2,721(8)             *
James M. Hoak, Jr.........................................           5,810                *
Richard L. Lawson.........................................           2,300(9)             *
Robert L. Peterson........................................           2,203                *
Nancy L. Seifert..........................................           2,842(10)            *
W. Scott Tinsman..........................................           3,299                *
Leonard L. Woodruff.......................................          22,892                *
Richard C. Engle..........................................          10,985(11)            *
Donald C. Heppermann......................................           2,932(12)            *
Lynn K. Vorbrich..........................................           5,072(13)            *
Beverly A. Wharton........................................           5,189(14)            *
Directors and executive officers as a group (27
 persons).................................................         169,651(15)            *
</TABLE>
 
- ------------------------
*Less than one percent of the shares of MidAmerican Common Stock outstanding.
 
 (1) Beneficial ownership  of each  of the  shares of  MidAmerican Common  Stock
    listed  in the foregoing  table is comprised  of sole voting  power and sole
    investment power,  unless  otherwise  noted. The  shares  reported  for  the
    non-employee  directors and nominees includes 800 shares of restricted stock
    granted in July 1995 in accordance  with the 1995 Long-Term Incentive  Plan.
    These  conditional grants are subject to the approval by the shareholders of
    the 1995  Long-Term Incentive  Plan as  described in  Item 3  of this  Proxy
    Statement/Prospectus.  See  "Directors'  Compensation" for  a  discussion of
    these grants.
 
 (2) Shares beneficially owned by Dr. Asher and her spouse.
 
                                       14
<PAGE>
 (3) Includes 5,977 shares  held in a defined  contribution plan as of  December
    31, 1995 and 1,862 shares beneficially owned by Mr. Bright and his spouse.
 
 (4) Includes 2,741 shares held by a trust for which Mr. Burnett is trustee.
 
 (5)  Includes 8,480 shares held by Dr.  Christensen and his partner in a profit
    sharing trust.
 
 (6) Includes 8,991 shares  held in a defined  contribution plan as of  December
    31,  1995 and  7,070 shares beneficially  owned by Mr.  Christiansen and his
    spouse.
 
 (7) Includes 2,940 shares held by Mr. Foster's spouse, 14,700 shares held by  a
    company  of which Mr. Foster is an  officer and shareholder and 5,000 shares
    held by a family partnership of which Mr. Foster is a partner.
 
 (8) Includes 1,266 shares held in an individual retirement account.
 
 (9) Shares beneficially owned by General Lawson and his spouse.
 
(10) Includes 2,042 shares held by a trust for which Mrs. Seifert is trustee.
 
(11) Includes 9,105 shares  held in a defined  contribution plan as of  December
    31,  1995, 1,367  shares beneficially  owned by  Mr. Engle's  spouse and 513
    shares beneficially owned by Mr. Engle and his spouse.
 
(12) Includes 2,932 shares  held in a defined  contribution plan as of  December
    31, 1995.
 
(13)  Includes 2,489 shares held  in a defined contribution  plan as of December
    31, 1995 and 262 shares beneficially owned by Mr. Vorbrich and his spouse.
 
(14) Includes 1,234 shares  held in a defined  contribution plan as of  December
    31, 1995, 3,536 shares beneficially owned by Mrs. Wharton and her spouse and
    419 shares beneficially owned in a custodial account for a minor child.
 
(15)  Includes shares held in defined contribution plans as of December 31, 1995
    and shares  beneficially  owned  jointly with  and  individually  by  family
    members of directors and executive officers.
 
                                       15
<PAGE>
                             EXECUTIVE COMPENSATION
 
    The  following  table  sets  forth  the  compensation  for  services  in all
capacities to the Company (including predecessor companies) and its subsidiaries
for the fiscal years ended December 31, 1995, 1994 and 1993 of those persons who
were, at December  31, 1995,  (i) the  two members of  the office  of the  chief
executive  officer and  (ii) the  other four  most highly  compensated executive
officers of the Company ("named executive officers").
 
                           SUMMARY COMPENSATION TABLE
 
<TABLE>
<CAPTION>
                                                                                 LONG-TERM COMPENSATION (7)
                                                                                 --------------------------
                                                                                    AWARDS
                                             ANNUAL COMPENSATION                 -------------    PAYOUTS
                              -------------------------------------------------   SECURITIES    -----------     ALL OTHER
          NAME AND                        SALARY      BONUS      OTHER ANNUAL     UNDERLYING    LTP PAYOUTS   COMPENSATION
     PRINCIPAL POSITION         YEAR      ($)(1)     ($)(2)    COMPENSATION($)   OPTIONS(#)(4)    ($)(5)         ($)(6)
- ----------------------------  ---------  ---------  ---------  ----------------  -------------  -----------  ---------------
<S>                           <C>        <C>        <C>        <C>               <C>            <C>          <C>
Russell E. Christiansen ....       1995    427,500    148,000         60,267(3)      150,000        --             26,370
  Chairman, Chairman of            1994    415,000          0              0               0        --             26,370
  the Office of CEO                1993    398,333    164,920          5,310               0        --             25,048
Stanley J. Bright ..........       1995    356,000    105,000         53,525(3)      150,000            --          5,850
  President, President of          1994    300,800     45,120              0               0             0         31,452
  the Office of CEO                1993    285,000     17,100              0               0        84,075         11,273
Richard C. Engle ...........       1995    241,500     72,850              0          60,000        --             17,275
  Executive Vice                   1994    238,000          0              0               0        --             17,275
  President                        1993    233,000     62,541              0               0        --             17,238
Lynn K. Vorbrich ...........       1995    241,500     67,850         21,482(3)       60,000        --             11,083
  President                        1994    238,000          0              0               0        --             11,083
  Electric Division                1993    236,446     62,854              0               0        --              9,529
Donald C. Heppermann .......       1995    213,200     46,125         30,887(3)       60,000            --          5,850
  President and COO                1994    197,000     19,700              0               0             0         22,260
  InterCoast Energy Co.            1993    186,583     33,660              0               0             0          6,467
Beverly A. Wharton .........       1995    191,450     56,550              0          60,000        --              4,918
  President                        1994    173,000          0              0               0        --              4,918
  Gas Division                     1993    160,500     42,510              0               0        --              4,598
</TABLE>
 
- ------------------------
(1) Includes  lump sum  payments in  lieu of  1995 base  salary adjustments  for
    Messrs. Christiansen, Engle and Vorbrich and Mrs. Wharton.
 
(2) Includes bonuses paid by predecessor companies.
 
(3)  Consists of  compensation supplemental  to that  provided by  the Company's
    employee relocation  policy  and  reimbursement for  income  taxes  paid  in
    connection with the executive's relocation.
 
(4)  Consists  of  options  conditionally granted  pursuant  the  1995 Long-Term
    Incentive  Plan  which  is  subject  to  the  approval  of  the  holders  of
    MidAmerican   Common  Stock   as  described   in  Item   3  of   this  Proxy
    Statement/Prospectus.
 
(5) Payments  made  pursuant  to a  predecessor  company's  long-term  incentive
    compensation plan.
 
(6) Amounts for 1995 consist of (i) contributions by the Company and predecessor
    companies  to  defined  contribution plans  of  $3,000 for  each  of Messrs.
    Christiansen and Engle and Mrs. Wharton,  $5,850 for each of Messrs.  Bright
    and  Heppermann and  $1,533 for Mr.  Vorbrich and (ii)  $23,370, $14,275 and
    $9,550 for  Messrs.  Christiansen,  Engle and  Vorbrich,  respectively,  and
    $1,918 for Mrs. Wharton for supplemental life insurance.
 
(7)  As of December 31, 1995,  Messrs. Christiansen, Bright, Engle, Vorbrich and
    Heppermann and Mrs.  Wharton held  13,675, 11,966, 6,291,  6,291, 5,607  and
    5,470  restricted shares of MidAmerican Common Stock, respectively, having a
    value of  $229,056,  $200,430,  $105,374,  $105,374,  $93,917  and  $91,622,
    respectively,  based on  the closing  price of  MidAmerican Common  Stock at
    December 31,  1995.  The  restricted  stock  was  conditionally  granted  as
    performance  shares pursuant  to the  1995 Long-Term  Incentive Plan  and is
    subject to the approval of the holders of
 
                                       16
<PAGE>
    MidAmerican  Common   Stock  as   described  in   Item  3   of  this   Proxy
    Statement/Prospectus.  See the  "Compensation Committee  Report on Executive
    Compensation" and the table of "Long-Term Incentive Plans -- Awards in  Last
    Fiscal Year."
 
                       OPTION GRANTS IN LAST FISCAL YEAR
 
<TABLE>
<CAPTION>
INDIVIDUAL GRANTS(1)
- ---------------------------------------------------------------------------------------------------------
                                                  NUMBER OF      PERCENT OF
                                                 SECURITIES     TOTAL OPTIONS
                                                 UNDERLYING      GRANTED TO       EXERCISE                  GRANT DATE
                                                   OPTIONS        EMPLOYEES         PRICE     EXPIRATION   PRESENT VALUE
NAME                                             GRANTED (#)   IN FISCAL YEAR     ($/SHARE)      DATE         ($)(2)
- -----------------------------------------------  -----------  -----------------  -----------  -----------  -------------
<S>                                              <C>          <C>                <C>          <C>          <C>
Russell E. Christiansen........................     150,000             21%           14.50      7/26/05        237,000
Stanley J. Bright..............................     150,000             21%           14.50      7/26/05        237,000
Richard C. Engle...............................      60,000              8%           14.50      7/26/05         94,800
Lynn K. Vorbrich...............................      60,000              8%           14.50      7/26/05         94,800
Donald C. Heppermann...........................      60,000              8%           14.50      7/26/05         94,800
Beverly A. Wharton.............................      60,000              8%           14.50      7/26/05         94,800
</TABLE>
 
- ------------------------
(1) The options shown in the foregoing table were conditionally granted pursuant
    to  the 1995 Long-Term Incentive Plan and are subject to the approval of the
    holders of MidAmerican  Common Stock as  described in Item  3 of this  Proxy
    Statement/Prospectus.  The aggregate  number of  shares attributable  to the
    1995 grants is 700,000.
 
    The exercise price (the price the recipient must pay to purchase each  share
    of  MidAmerican Common Stock that is the  subject of the option) is equal to
    the fair market value of  MidAmerican Common Stock on  the date of grant  of
    the  option. All options shown were granted on July 26, 1995 and reflect the
    closing price  of MidAmerican  Common Stock  on that  date. Options  may  be
    exercised  during a period that begins one  year after the date of grant and
    ends ten years after the date of  the grant. During the exercise period  the
    recipient  of the option grant may exercise 25% of the total options granted
    after one year from the date of the grant, 50% after two years from the date
    of the grant, 75% after  three years from the date  of the grant and all  of
    the  options after  four years  from the date  of the  grant. Options become
    fully exercisable in the event of termination of employment with the Company
    by reason  of disability,  retirement at  age  55 and  after five  years  of
    service  with the Company,  death or a  change in control  as defined in the
    plan.
 
(2) The Black-Scholes Option Pricing Model was used to determine the grant  date
    present  value of the  stock options granted  in 1995 by  the Company to the
    named executive officers. Under the Black-Scholes Option Pricing Model,  the
    grant  date present value of the stock  options referred to in the table was
    $1.58.
 
    The ultimate values of the options will depend on the future market price of
    MidAmerican Common Stock, which cannot be forecast with reasonable accuracy.
    The actual value, if any, an  optionholder will realize upon exercise of  an
    option  will depend on the excess of  the market price of MidAmerican Common
    Stock over the exercise price on the date the option is exercised.
 
    The material  assumptions  and  adjustments incorporated  in  the  model  in
    estimating the value of the options include the following:
 
    - An  exercise price of the option of $14.50, equal to the fair market value
      of the underlying stock on the date of the grant.
 
    - An option term of ten years.
 
    - An interest rate  of 6.28%  that represents the  interest rate  on a  U.S.
      Treasury  security  on  the  date  of  the  grant  with  a  maturity  date
      corresponding to that of the option term.
 
    - Volatility  of  23%  calculated   using  daily  stock  prices,   including
      predecessor companies, for the six month period prior to the grant date.
 
    - Dividends  at  the rate  of $1.20  per  share representing  the annualized
      dividends paid with respect to a share of MidAmerican Common Stock at  the
      date of the grant.
 
                                       17
<PAGE>
                         FISCAL YEAR END OPTION VALUES
 
<TABLE>
<CAPTION>
                                                                                     NUMBER OF
                                                                                     SECURITIES       VALUE OF
                                                                                     UNDERLYING     UNEXERCISED
                                                                                    UNEXERCISED     IN-THE-MONEY
                                                                                     OPTIONS AT      OPTIONS AT
                                                                                    FISCAL YEAR     FISCAL YEAR
                                                                                        END             END
                                                                                        (#)            ($)(1)
                                                                                   --------------  --------------
                                                                                    EXERCISABLE/    EXERCISABLE/
NAME                                                                               UNEXERCISABLE   UNEXERCISABLE
- ---------------------------------------------------------------------------------  --------------  --------------
<S>                                                                                <C>             <C>
Russell E. Christiansen..........................................................      0/150,000       0/337,500
Stanley J. Bright................................................................      0/150,000       0/337,500
Richard C. Engle.................................................................       0/60,000       0/135,000
Lynn K. Vorbrich.................................................................       0/60,000       0/135,000
Donald C. Heppermann.............................................................       0/60,000       0/135,000
Beverly A. Wharton...............................................................       0/60,000       0/135,000
</TABLE>
 
- ------------------------
(1) Based  on the closing price of MidAmerican Common Stock at December 31, 1995
    of $16.75  per  share. Options  shown  as unexercisable  were  conditionally
    granted  and are  subject to  the approval by  the shareholders  of the 1995
    Long-Term  Incentive   Plan  as   described  in   Item  3   to  this   Proxy
    Statement/Prospectus.  See footnote (1) to the  Option Grants in Last Fiscal
    Year table.
 
             LONG-TERM INCENTIVE PLANS--AWARDS IN LAST FISCAL YEAR
 
<TABLE>
<CAPTION>
                                                                                                PERFORMANCE OR
                                                                           NUMBER OF SHARES,  OTHER PERIOD UNTIL
                                                                            UNITS OR OTHER       MATURATION OR
NAME                                                                         RIGHTS(#)(1)           PAYOUT
- -------------------------------------------------------------------------  -----------------  -------------------
<S>                                                                        <C>                <C>
Russell E. Christiansen..................................................         13,675             6/30/98
Stanley J. Bright........................................................         11,966             6/30/98
Richard C. Engle.........................................................          6,291             6/30/98
Lynn K. Vorbrich.........................................................          6,291             6/30/98
Donald C. Heppermann.....................................................          5,607             6/30/98
Beverly A. Wharton.......................................................          5,470             6/30/98
</TABLE>
 
- ------------------------
(1) The restricted stock awards shown in the foregoing table were  conditionally
    made  pursuant to the 1995  Long-Term Incentive Plan and  are subject to the
    approval of the holders of MidAmerican  Common Stock as described in Item  3
    of  this Proxy  Statement/Prospectus. Such awards  are in the  form of share
    equivalent units based on MidAmerican Common Stock and will be credited with
    dividends at the same time and at the same rate as dividends are paid on the
    MidAmerican Common Stock. Until  the plan is  approved by the  shareholders,
    and  in the event  it is not  approved, such awards  will be in  the form of
    share equivalent units.  After approval,  the awards  will be  deemed to  be
    restricted  stock.  The  awards  are  subject  to  achievement  of  specific
    performance measures during a three-year performance period ending June  30,
    1998.  During this  performance period, the  holder of  the restricted stock
    will be entitled to receive the  dividends on the restricted stock and  vote
    the  stock; however, the stock  will not be vested  until the achievement of
    the performance measures. A participant  whose employment is terminated  due
    to  retirement, will receive a pro  rata portion of such participant's total
    award  based  on  the  participant's  service  as  an  employee  during  the
    performance  period or as otherwise determined  by the Board of Directors in
    its sole discretion. The performance shares will vest, however, in the event
    of termination of employment with the Company by reason of disability, death
    or a change in control as defined  in the plan. The Share Exchange will  not
    constitute  a change in  control. See the  "Compensation Committee Report on
    Executive Compensation" for a discussion of the restricted stock awards.
 
                                       18
<PAGE>
COMPENSATION COMMITTEE REPORT ON EXECUTIVE COMPENSATION
 
    The Compensation  Committee of  the  Board of  Directors has  furnished  the
following report on executive compensation.
 
    The  Compensation Committee is comprised of directors who are not current or
former officers or  employees of  the Company or  any of  its subsidiaries.  The
Committee has the following responsibilities:
 
    - Review and recommend to the Board of Directors the election of officers of
      the  Company annually and at such other times as may be recommended by the
      Chief Executive Officer of the Company.
 
    - Formally review  not  less than  annually  the performance  of  the  Chief
      Executive  Officer, the President and other designated senior officers and
      recommend to the Board of Directors the criteria to be used in determining
      senior management compensation. The Compensation Committee shall recommend
      all elements of compensation, including base salary, annual and  long-term
      incentive  award opportunities, for each of the senior officers, including
      the Chief Executive Officer, for approval by the Board of Directors.
 
    - Review and  recommend  to the  Board  of  Directors the  adoption  of  and
      significant  amendments to all  nonqualified compensation plans, including
      annual and long-term  incentive compensation,  stock option,  supplemental
      retirement and deferred compensation plans.
 
    - Review  and approve all  elements of compensation,  including base salary,
      annual and long-term  incentive award opportunities,  for all officers  of
      the Company other than senior officers.
 
    - Periodically  review plans  for management  development and  succession to
      assure proficiency and continuity in the Company's management.
 
    The  Company  has  adopted  a  compensation  policy  which  is  designed  to
compensate  management with salary, incentives and  benefits at the top quartile
level commensurate with top quartile performance  of the Company as compared  to
utility  companies. The measurement  of top quartile performance  is in terms of
total shareholder return as discussed  in this report. Company performance  that
does  not  achieve  top  quartile  performance  will  not  result  in management
compensation at top  quartile levels. Comparative  utility companies consist  of
electric,  gas and  combination utilities that  are members  of utility industry
associations, some of which may also be included in the published industry index
referenced in  the  shareholder return  performance  graph. The  industry  index
referenced  in  the  shareholder  return  performance  graph  is  the  Dow Jones
Utilities Index which consists of 15 public utility companies, many of which are
larger than MidAmerican in terms of revenues  and assets. In order to provide  a
broad  comparison  of  utility  industry  compensation,  the  Committee reviewed
compensation surveys (some utilities  may appear on more  than one survey)  made
available  by the Edison Electric  Institute (approximately 115 surveyed utility
companies), the  American Gas  Association  (approximately 95  surveyed  utility
companies)  and the Company's compensation consultant (approximately 25 surveyed
utility companies).
 
    Incentive plans and performance review  processes are intended to  encourage
and  reward outstanding  performance at the  top quartile level.  In addition to
aligning  compensation  levels  with  the  Company's  performance  in  terms  of
shareholder value, the compensation policy and the goals set for incentive plans
are designed to attract and retain highly qualified and capable executives. As a
result,  the policy places  a portion, ranging  from approximately one-fourth to
one-half, of total compensation at risk in recognition of the importance  placed
on increasing shareholder value.
 
    The  Committee  has established  a  policy of  annually  reviewing executive
compensation for the purpose of determining base salaries for the next year.  As
part  of  its review,  the  Committee evaluates  overall  corporate performance,
including earnings, comparative utility and general industry compensation levels
and salary recommendations made by the Office of the Chief Executive Officer  of
the   Company,  consisting  of  Mr.  Christiansen,  Chairman,  and  Mr.  Bright,
President. The Committee then recommends base salaries to the Board of Directors
for the senior officers of the Company and
 
                                       19
<PAGE>
approves such salaries for all other  officers. The Committee also sets  targets
and  goals  for  the  annual  and  long-term  incentive  compensation  plans and
evaluates the attainment of  these targets and goals  in order to determine  the
level of incentive awards to be made, if any.
 
   
    BASE  SALARIES.  Base salaries for the named executive officers are targeted
at the midpoint of the applicable salary band which has a one hundred percentage
point range between the band minimum and  the band maximum. The midpoint of  the
salary  band  is determined  by taking  the average  of competitive  market data
available in the utility industry for comparative companies, including companies
having nonregulated  operations,  as  determined  through  compensation  surveys
prepared  by  utility  industry  associations  and  the  Company's  compensation
consultant. While  it is  the  policy of  the Company  to  use the  salary  band
midpoint  as the target  for annual salary levels,  individual and business unit
performance are also considered in determining actual base salaries.
    
 
   
    Prior to  July  1, 1995,  the  effective date  of  the Merger  creating  the
Company,  1995 base  salaries were  determined in  accordance with  the existing
policies of  the predecessor  companies.  Messrs. Engle  and Vorbrich  and  Mrs.
Wharton  received a lump sum  payment equal to three  and one-quarter percent of
their respective 1994 base  salaries in lieu of  a 1995 base salary  adjustment.
Therefore,  1995 base salaries  for these officers, except  for Mrs. Wharton who
received a twenty-one  percent base salary  increase effective July  1, 1995  in
recognition  of  her  assumption of  responsibilities  as President  of  the Gas
Division, remained the same as their 1994 base salaries. Mr. Heppermann received
a four percent increase in his 1995 base salary.
    
 
   
    ANNUAL INCENTIVE COMPENSATION.  Immediately  prior to the effective time  of
the  Merger and in recognition of  their outstanding performance in consummating
the Merger, a  discretionary bonus equal  to seven percent  of their  respective
base salaries was approved for Messrs. Engle and Vorbrich and Mrs. Wharton.
    
 
    On  July 26, 1995, the  Company adopted a Key  Employee Short Term Incentive
Compensation Plan for  key employees,  including the  named executive  officers.
Since  the Merger became effective in  mid-year, neither performance targets nor
program awards were established  for 1995. Therefore, no  awards under the  plan
were  made to plan  participants, including Messrs.  Christiansen and Bright and
the other named executive officers, for the year 1995.
 
   
    In December 1995, upon the recommendation of the Compensation Committee, the
Board  of  Directors,   in  recognition   of  the   successful  completion   and
implementation  of the Merger and the  effective management of transition issues
related to the  combining of the  predecessor companies, approved  the award  of
discretionary  bonuses in the amount of approximately twenty-five percent of his
1995 base salary  for Mr. Engle  and approximately twenty-two  percent of  their
respective  1995  base salaries  for Messrs.  Heppermann  and Vorbrich  and Mrs.
Wharton. Fifty percent of the award received by the named executive officers was
paid in cash with the remainder deferred under the Company's Executive  Deferred
Compensation Plan.
    
 
    LONG-TERM  INCENTIVE COMPENSATION.   The  1995 Long-Term  Incentive Plan was
adopted by the Board of  Directors in 1995. Under  the plan, officers and  other
key  employees, including the named executive officers, may be awarded incentive
stock  options,  non-statutory   stock  options,   stock  appreciation   rights,
restricted  stock,  bonus  stock  and  performance  shares,  individually  or in
combination, upon the  achievement of  specific performance  measures. Upon  the
recommendation  of the Committee,  the Board of Directors  approved the grant of
stock options to the named executive officers in the amounts shown in the  table
of Option Grants for the Fiscal Year. In addition, the Committee recommended and
the  Board of Directors  approved the grant of  restricted shares of MidAmerican
Common Stock to the named executive officers  in the amounts shown on the  table
of  Long-Term Incentive  Plan Awards  for a  performance period  ending June 30,
1998. Under the plan, it is  contemplated that restricted stock will be  granted
at  the beginning of each three year performance period; however, the shares are
not earned or distributed to the participant unless the performance targets  for
that period have been met. The performance target for this performance period is
a  total shareholder return (as measured by growth in stock price and dividends)
by the Company that is in the  top quartile of electric and combination gas  and
electric  utilities included  in the  VALUE LINE  INVESTMENT SURVEY.  During the
 
                                       20
<PAGE>
performance period, the participant has the right to vote the shares and receive
dividends thereon. The stock options and restricted stock grants are subject  to
the  approval  by  the shareholders  of  the  1995 Long-Term  Incentive  Plan as
described in Item 3 of this Proxy Statement/Prospectus.
 
   
CHIEF EXECUTIVE OFFICERS' COMPENSATION
    
 
   
    Although the  minimum  base salary  for  each of  Messrs.  Christiansen  and
Bright,  the  two members  of  the Office  of  the Chief  Executive  Officer, is
specified by their  respective employment contracts,  their total  compensation,
including   base  salary,  annual  and   long-term  incentive  compensation  are
determined by the Board of Directors upon the recommendation of the Committee in
accordance with  the policies  described above.  The measures  of the  Company's
performance  upon which each  of Messrs. Christiansen's  and Bright's total 1995
compensation was based were the  successful consummation of the Merger  creating
the  Company and  the effective management  of transition issues  related to the
combining of the predecessor companies,  including the selection of  management,
structuring the new organization and implementing cost saving measures.
    
 
   
    Mr.  Christiansen did not receive  a base salary adjustment  for 1995 due to
the pending  Merger between  the predecessor  companies, Midwest  Resources  and
Iowa-Illinois.  He did, however, receive  a lump sum payment  equal to three and
one-half percent  of his  1994 salary  in recognition  of his  contributions  in
planning  and negotiating  the Merger.  Mr. Bright  received a  1995 base salary
adjustment of approximately  eighteen percent in  recognition of his  employment
agreement with the Company specifying that his base salary at the effective time
of the Merger be not less than $350,000. Neither Mr. Christiansen nor Mr. Bright
received  a base salary adjustment during 1995 after July 1, 1995, the effective
time of the Merger.
    
 
   
    Immediately prior to the effective time of the Merger and in recognition  of
his  outstanding  performance  in managing  the  consummation of  the  Merger, a
discretionary bonus equal to seven percent  of his base salary was approved  for
Mr.  Christiansen by  the Board of  Directors of Midwest  Resources. In December
1995, upon  the  recommendation of  the  Compensation Committee,  the  Board  of
Directors  of  the  Company, in  recognition  of the  successful  completion and
implementation of the Merger and the improvement in shareholder value,  approved
a  discretionary bonus for each of Messrs.  Christiansen and Bright in an amount
equal to thirty percent of their respective 1995 base salaries.
    
 
   
    As discussed above, each of Messrs. Christiansen and Bright received  awards
of  stock  options and  restricted  shares of  MidAmerican  Common Stock  in the
respective amounts disclosed in the table  of Option Grants for the Fiscal  Year
and  the  table of  Long-Term Incentive  Plans  -- Awards  in Last  Fiscal Year,
respectively. Each of the foregoing grants  to both of Messrs. Christiansen  and
Bright  were made in accordance with the Company's executive compensation policy
of more  closely aligning  executive compensation  with shareholder  value.  The
value  of the options  granted increases as  overall shareholder value increases
and the restricted  stock awards  are subject to  the achievement  of the  total
shareholder  return performance  goal at the  end of  the three-year performance
period.
    
 
   
    The Committee believes that executive compensation for 1995, especially  for
the  period following the effective  time of the Merger,  reflects its policy of
aligning executive compensation with an enhanced shareholder value and  ensuring
that  the Company's goals  and performance are consistent  with the interests of
the shareholders.
    
 
                             COMPENSATION COMMITTEE
                            J. W. Eugster, Chair
                             N. L. Seifert, Vice Chair
                             R. A. Burnett
                             J. W. Colloton
                             M. Foster, Jr.
                             R. A. Schneider (retiring as a director in 1996)
 
                                       21
<PAGE>
SHAREHOLDER RETURN PERFORMANCE GRAPH
 
    The following is a line graph comparing the yearly change in the  cumulative
total  shareholder return  on MidAmerican Common  Stock to  the cumulative total
return of the S&P 500  Index and the Dow Jones  Utilities Index (which does  not
include  the Company) for the five-year  period commencing December 31, 1990 and
ending December 31, 1995.
 
                COMPARISON OF FIVE YEAR CUMULATIVE TOTAL RETURN*
             AMONG MIDAMERICAN ENERGY COMPANY, THE S & P 500 INDEX
                       AND THE DOW JONES UTILITIES INDEX
 
EDGAR REPRESENTATION OF DATA POINTS USED IN PRINTED GRAPHIC
 
<TABLE>
<CAPTION>
                MIDAMERICAN ENERGY COMPANY        S&P 500     DOW JONES UTILITIES
<S>        <C>                                   <C>        <C>
12/90                                       100        100                       100
12/91                                       124        130                       115
12/92                                       109        140                       120
12/93                                       131        155                       131
12/94                                       111        157                       111
12/95                                       148        215                       147
</TABLE>
 
    *Assumes that the value  of the investment in  MidAmerican Common Stock  and
each index was $100 on December 31, 1990 and that all dividends were reinvested.
Information  shown  for  the  Company prior  to  July  1, 1995  is  a  pro forma
calculation based  on  an  investment  in  each  of  the  predecessor  companies
amounting to $56 for Midwest Resources and $44 for Iowa-Illinois on December 31,
1990.
 
                                       22
<PAGE>
RETIREMENT PLANS
 
    The   Company  maintains  an  unfunded   Supplemental  Retirement  Plan  for
Designated Officers  ("Supplemental  Plan")  to  provide  additional  retirement
benefits  to designated participants,  as determined by  the Board of Directors.
Messrs. Christiansen, Bright,  Engle, Heppermann and  Vorbrich and Mrs.  Wharton
are  participants  in  the  Supplemental Plan.  The  Supplemental  Plan provides
retirement benefits  up to  sixty-five  percent of  a participant's  Total  Cash
Compensation   in   effect  immediately   prior   to  retirement.   "Total  Cash
Compensation" means the highest amount payable  to a participant as annual  base
salary during the five years immediately prior to retirement plus the average of
the  participant's  last three  years' awards  under  an annual  incentive bonus
program. Participants must be  credited with five years  service in order to  be
eligible  to receive  benefits under  the Supplemental  Plan. Each  of the named
executive officers has  or will  have five years  of credited  service with  the
Company  as of their  respective normal retirement  age and will  be eligible to
receive benefits under  the Supplemental  Plan. A participant  who elects  early
retirement is entitled to reduced benefits under the Supplemental Plan.
 
    The  supplemental retirement  benefit will be  reduced by the  amount of the
participant's regular retirement  benefit under the  Midwest Power Systems  Inc.
Salaried  Employees' Retirement  Plan ("Midwest  Power Retirement  Plan") or the
Iowa-Illinois Gas  and Electric  Company  Pension Plan  ("Iowa-Illinois  Pension
Plan"),  as applicable, and by benefits under the Iowa-Illinois Gas and Electric
Company Supplemental Retirement Plan or the Iowa Resources Inc. and Subsidiaries
Supplemental Retirement Income Plan ("IOR Supplemental Plan"), as applicable.
 
    The Midwest  Power Retirement  Plan provides  for payment  of fixed  pension
benefits  to persons  who retire after  a specified  age and number  of years of
service, based on average annual salary during the five highest paid consecutive
years out of the last ten  years prior to retirement. The Iowa-Illinois  Pension
Plan  provides  for  the  payment  of  fixed  pension  benefits  upon retirement
determined under a formula based on the eligibility date of the employee, age at
retirement, final  average compensation  and years  of credited  service.  Final
average  compensation is determined  by the highest  sixty consecutive months of
compensation during the ten years prior to retirement.
 
    Part A  of the  IOR Supplemental  Plan provides  retirement benefits  up  to
sixty-five  percent of  a participant's  highest annual  salary during  the five
years prior to retirement reduced by the participant's Midwest Power  Retirement
Plan  benefit. The percentage applied  is based on years  of credited service. A
participant who elects early  retirement is entitled  to reduced benefits  under
the  plan. A  survivor benefit  is payable to  a surviving  spouse. Benefits are
adjusted annually for inflation.  Part B of the  IOR Supplemental Plan  provides
that  an additional one hundred-fifty percent of annual salary is to be paid out
to participants at the rate of ten  percent per year over fifteen years,  except
in  the event of a participant's death,  in which event the unpaid balance would
be paid  to the  participant's  beneficiary or  estate.  Benefits from  the  IOR
Supplemental  Plan  will  be  paid  out  of  general  corporate  funds. Deferred
compensation is considered part  of the salary covered  by the IOR  Supplemental
Plan.
 
    A  survivor benefit is payable to  a surviving spouse under the Supplemental
Plan. Benefits from the Supplemental Plan will be paid out of general  corporate
funds.  Deferred compensation  is considered part  of the salary  covered by the
Supplemental Plan.
 
    The table below shows the estimated aggregate annual benefits payable  under
the   Supplemental  Plan  and   the  Midwest  Power   Retirement  Plan  and  the
Iowa-Illinois Pension Plan. The amounts exclude Social Security and are based on
a straight life annuity and retirement at ages 55, 60 and 65. Federal law limits
the amount  of benefits  payable  to an  individual  through the  tax  qualified
defined  benefit plans, and benefits exceeding such limitation are payable under
the Supplemental Plan.
 
                                       23
<PAGE>
                               PENSION PLAN TABLE
 
<TABLE>
<CAPTION>
                         ESTIMATED ANNUAL BENEFIT
                   -------------------------------------
   TOTAL CASH                AGE AT RETIREMENT
  COMPENSATION     -------------------------------------
  AT RETIREMENT        55           60           65
- -----------------  -----------  -----------  -----------
<S>                <C>          <C>          <C>
   $   200,000     $   110,000  $   120,000  $   130,000
       250,000         137,500      150,000      162,500
       300,000         165,000      180,000      195,000
       350,000         192,500      210,000      227,500
       400,000         220,000      240,000      260,000
       450,000         247,500      270,000      292,500
       500,000         275,000      300,000      325,000
       550,000         302,500      330,000      357,500
       600,000         330,000      360,000      390,000
       650,000         357,500      390,000      422,500
       700,000         385,000      420,000      455,000
       750,000         412,500      450,000      487,500
</TABLE>
 
EMPLOYMENT AGREEMENTS
 
    On July 1, 1995, the Employment Agreements between Messrs. Christiansen  and
Bright  and the Company became effective.  Pursuant to his Employment Agreement,
Mr. Christiansen serves as Chairman of the Board of Directors of the Company and
Chairman of the Office  of the Chief  Executive Officer until  July 1, 1996,  at
which time he will continue as Chairman of the Company until May 31, 1997. For a
three  year period  commencing June  1, 1997, Mr.  Christiansen will  serve as a
consultant to the Company.
 
    Pursuant to his Employment Agreement, Mr. Bright serves as President of  the
Company and President of the Office of the Chief Executive Officer until July 1,
1996,  at  which time  he  will become  President  and Chief  Executive Officer.
Commencing on June  1, 1997 and  until July 1,  2000, Mr. Bright  will serve  as
Chairman of the Board of Directors and Chief Executive Officer of the Company.
 
    The  Employment  Agreements  provide  that  the  Company  may  terminate the
employment of either Mr. Christiansen or Mr. Bright (i) in the event of a breach
of the respective Employment Agreement in any material respect as determined  by
the  vote of not  less than two-thirds of  the entire Board  of Directors of the
Company, (ii) for cause as  determined by an affirmative  vote of not less  than
two-thirds  of the entire  Board of Directors  of the Company  or (iii) upon the
affirmative vote of not less than two-thirds of the entire Board of Directors of
the Company, provided that in the case  of (iii), the Company will be  obligated
to  make all salary and bonus payments  and to provide all benefits specified in
the Employment Agreement  through the  end of the  Employment Agreement's  term,
notwithstanding its termination.
 
    The  Employment Agreements provide that  Messrs. Christiansen and Bright are
to receive  annual  base  salaries  of not  less  than  $400,000  and  $350,000,
respectively,  executive officer  benefits and  management bonuses  based on the
achievement of corporate goals and objectives. In addition to executive  officer
benefits,  Mr. Christiansen is to receive annual compensation of $50,000 for his
service as a consultant during the consulting period.
 
    If either of Messrs. Christiansen's or Bright's employment is terminated for
cause or due to breach of  his respective Employment Agreement, he will  receive
earned  and unpaid  salary accrued through  the end  of the month  in which such
termination occurs.  In  the event  of  their death  during  the term  of  their
respective  Employment Agreements,  salary payments  will terminate  on the date
death benefits are made  available to their  respective beneficiaries under  the
Company's benefit plans.
 
    It  is expected that  new individual employment  agreements between Holdings
and  Messrs.  Christiansen  and  Bright,  respectively,  containing  terms   and
conditions which are in all
 
                                       24
<PAGE>
material  respects  identical  to  the Employment  Agreements  will  replace the
Employment Agreements effective at the effective time of the Share Exchange.  As
a result, the Employment Agreements will be terminated at such time.
 
    In addition to Mr. Christiansen's Employment Agreement, an agreement between
a  predecessor company  and Mr. Christiansen  remains in  effect. That agreement
provides for certain benefits in the event of a termination of employment  other
than  for cause within five years following a change in control which is defined
as (i) the public  announcement or commencement  of a tender  offer by an  other
entity  of  20%  or  more  of  the  Company's  outstanding  common  stock,  (ii)
shareholder approval  of a  merger in  which the  Company is  not the  surviving
corporation  or which  results in  the Company  shareholders owning  less than a
majority of the voting securities of the surviving corporation, (iii) the  sale,
lease  or transfer of all  or substantially all of the  assets of the Company or
(iv) a change in the  majority of the members of  the Board of Directors  within
any 24 month period. The Merger did not constitute a change in control for which
Mr.  Christiansen may receive benefits under  the agreement if he terminates his
employment or his employment is terminated without cause. Implementation of  the
Holding Company Proposal upon receipt of the requisite approvals as described in
Item  2 of this Proxy Statement/Prospectus will  also not constitute a change in
control.
 
    As part of the  termination benefits, Mr. Christiansen  may elect to  either
(i)  continue to receive his Base Salary  (which means the higher of his monthly
rate of pay for the month immediately preceding termination or his twelve  month
average  rate of  pay) and  benefits until age  62 and  then the  greater of the
retirement benefits available  to the  person in  his former  position or  those
available to him at the time of termination or (ii) receive a present value lump
sum  payment for such period net of any  excise tax equal to his Base Salary and
benefits with  the continuation  of  health and  life insurance  and  disability
coverage. In the event his employment is terminated after five years following a
change  in  control but  before  age 62,  Mr.  Christiansen is  entitled  to all
available benefits and a trust will be established for payment of benefits under
the applicable  supplemental executive  retirement  plan without  reduction  for
early retirement. During the first six months following a change in control, Mr.
Christiansen may terminate his employment and receive all available benefits for
three  years or until the sum of such  benefits would cause the imposition of an
excise tax. Mr. Christiansen would also be entitled to reimbursement of  certain
legal  expenses to  enforce this agreement.  In exchange for  such benefits, Mr.
Christiansen has agreed not to disclose any proprietary information or undertake
any activity competing  with or  resulting in  material economic  damage to  the
Company.
 
    Effective  July 1, 1995, the Company  adopted the MidAmerican Energy Company
Severance Plan (the "Company Severance  Plan") for ten specified officers,  five
of   whom  were  each  officers  of  Midwest  Resources  or  Midwest  Power  and
Iowa-Illinois (collectively,  the "Specified  Officers"),  who are  entitled  to
receive Severance Benefits (as hereinafter defined) for a two year period ending
on  July 1,  1997 (the  "Term"), if such  Specified Officer  incurs a Qualifying
Termination.  Each  of  the  named   executive  officers,  except  for   Messrs.
Christiansen and Bright, are covered by the Company Severance Plan. A Qualifying
Termination  means a termination of employment  of a Specified Officer occurring
within the Term either (i) involuntarily for any reason (except in the  instance
of  a felony)  or (ii)  voluntarily if the  Specified Officer  has furnished the
President of the Company with six months  prior written notice of the intent  to
voluntarily  terminate employment. Termination of employment due, in whole or in
part, to the commission of a felony by a Specified Officer will not constitute a
Qualifying Termination under the Company Severance Plan. All Severance  Benefits
(as  hereinafter defined) for a Specified Officer  charged with a felony will be
suspended until such time as a felony charge is finally disposed. Conviction  of
a  felony or a plea of  no contest to a felony  will be sufficient to disqualify
the Specified Officer for Severance Benefits.
 
    "Severance Benefits" under the Company Severance Plan include: (i) an amount
equal to  two times  the  Specified Officer's  highest Total  Cash  Compensation
(defined  as annual salary  plus bonus) payable  in a lump  sum on the effective
date of  the  Qualifying  Termination;  (ii)  the  Specified  Officer's  accrued
vacation  pay through the effective date  of the Qualifying Termination, payable
in a lump sum on such date; (iii) continuation of the welfare benefits of health
insurance, disability insurance and
 
                                       25
<PAGE>
group term life  insurance for a  period of  24 full calendar  months after  the
effective  date of  the Qualifying  Termination, and  (iv) standard outplacement
services for a period of 24 full calendar months after the effective date of the
Qualifying Termination. In addition, Specified Officers are eligible to  receive
a  cash "gross-up" payment equal  to the federal excise tax,  if any, due on the
total severance package.
 
    Iowa-Illinois maintained a severance  plan ("Iowa-Illinois Severance  Plan")
which  provided benefits as set forth  herein. Under the Iowa-Illinois Severance
Plan,  ten  named  officers  ("Designated  Officer")  are  entitled  to  receive
Severance  Benefits (as  hereinafter defined),  if a  Qualifying Termination (as
hereinafter defined) occurs  within 24 full  calendar months after  a Change  in
Control  (as hereinafter defined). Messrs.  Bright and Heppermann are Designated
Officers.
 
    A "Change in Control" means either (i) the closing date of the restructuring
of  Iowa-Illinois  as  a  result   of  a  merger,  consolidation,  takeover   or
reorganization  unless at least 60% of the  members of the board of directors of
the  corporation  resulting  from   such  merger,  consolidation,  takeover   or
reorganization  were members of the  incumbent Iowa-Illinois Board of Directors;
or (ii) the occurrence of any other event that is designated as being a  "Change
in Control" by a majority vote of the incumbent Iowa-Illinois Board of Directors
who  are not also  employees of Iowa-Illinois. The  merger of Iowa-Illinois Gas,
Midwest Resources and Midwest Power Systems with and into the Company  effective
July  1,  1995  constituted  a  Change in  Control  within  the  meaning  of the
Iowa-Illinois Severance Plan.
 
    A "Qualifying  Termination" occurs  when a  Designated Officer's  employment
with Iowa-Illinois, or any of its subsidiaries, or the corporation which results
from  such Change  in Control,  is terminated  either (a)  involuntarily for any
reason; or  (b) voluntarily,  provided that  the Designated  Officer shall  have
furnished  to the  President of such  corporation six full  months prior written
notice of the intent to voluntarily terminate employment.
 
    "Severance Benefits" include (i) an amount equal to two times the Designated
Officer's highest Total Cash Compensation (defined as annual salary and  bonus),
to  be  paid  in  a  lump  sum  on  the  effective  date  of  his/her Qualifying
Termination; and (ii) the Designated Officer's accrued vacation pay through  the
effective  date of the  Qualifying Termination of such  Designated Officer to be
paid in a lump  sum on the  effective date of  such Qualifying Termination;  and
(iii)  a continuation  of the welfare  benefits of  health insurance, disability
insurance, and group term life insurance  for 24 full calendar months after  the
effective  date of the Designated Officer's  Qualifying Termination, at the same
premium cost and at the same coverage level as in effect on such effective date;
and (iv) standard outplacement services from a nationally recognized firm of the
Designated Officer's selection for a period up to 24 full calendar months  after
the  effective date of the Designated  Officer's Qualifying Termination or until
such Designated Officer obtains subsequent employment, whichever period is less.
The cost of such services shall not exceed 20% of the Designated Officer's Total
Cash Compensation.
 
    In addition, Designated Officers are  eligible to receive a cash  "gross-up"
payment equal to federal excise tax, if any, due on the total severance package.
 
    Designated  Officers  must  elect between  payment  under  the Iowa-Illinois
Severance Plan or the Company  Severance Plan in the  event of a termination  of
employment.
 
                                     ITEM 2
                            HOLDING COMPANY PROPOSAL
 
GENERAL
 
    The  Board of Directors and  management of MidAmerican consider  it to be in
the best interest  of MidAmerican, its  shareholders and customers,  to adopt  a
holding  company structure.  The Holding  Company Proposal  will be accomplished
through a statutory share exchange whereby the outstanding shares of MidAmerican
Common Stock  will be  exchanged,  on a  share-for-share  basis, for  shares  of
 
                                       26
<PAGE>
Holdings  Common Stock. This  transaction will result  in MidAmerican becoming a
subsidiary of Holdings which will hold all of the MidAmerican Common Stock,  and
the present holders of MidAmerican Common Stock becoming the holders of Holdings
Common Stock.
 
    To  achieve this change in structure, Holdings was formed for the purpose of
becoming the holding company of MidAmerican. The respective Boards of  Directors
of MidAmerican and Holdings unanimously approved the Agreement, which is subject
to  shareholder and regulatory approval. See "Required Shareholder Approval" and
"Required Regulatory Approvals."  A copy of  the Agreement is  attached to  this
Proxy  Statement/Prospectus as Annex I and  is incorporated herein by reference.
It is intended that  the Share Exchange  will not result  in the recognition  of
gain  or loss by  MidAmerican shareholders for federal  income tax purposes. See
"Certain Federal Income Tax Consequences."
 
    The other securities of MidAmerican, including its preferred stock and first
mortgage bonds, will not be changed by  the Share Exchange and will continue  to
be outstanding securities of MidAmerican.
 
    RECOMMENDATION  OF BOARD OF  DIRECTORS.  The  Board of Directors unanimously
approved the Agreement and  believes the Holding Company  Proposal to be in  the
best  interests  of MidAmerican's  shareholders.  See "Reasons  for  the Holding
Company Proposal."
 
    THE BOARD OF DIRECTORS HAS UNANIMOUSLY APPROVED THE AGREEMENT AND THE  SHARE
EXCHANGE  CONTEMPLATED THEREBY, AND  RECOMMENDS THAT THE  HOLDERS OF MIDAMERICAN
COMMON STOCK  VOTE "FOR"  APPROVAL  OF THE  AGREEMENT  AND THE  HOLDING  COMPANY
PROPOSAL.
 
CORPORATE ORGANIZATION
 
    As  a result of the Merger, the common shareholders of Midwest Resources and
Iowa-Illinois became the common shareholders  of MidAmerican, and the  preferred
shareholders  of Midwest Power and  the preference shareholders of Iowa-Illinois
became the preferred shareholders of  MidAmerican. Pursuant to the Merger,  each
of  the outstanding  shares of common  stock of Midwest  Resources was converted
into one share of  MidAmerican Common Stock, each  of the outstanding shares  of
preferred  stock of  Midwest Power was  converted into one  share of MidAmerican
preferred stock,  no par  value  ("Preferred Stock"),  each of  the  outstanding
shares  of preference  stock of  Iowa-Illinois was  converted into  one share of
Preferred Stock,  and  each  of  the  outstanding  shares  of  common  stock  of
Iowa-Illinois was converted into the right to receive 1.47 shares of MidAmerican
Common  Stock.  The aggregate  market value  of  the shares  of common  stock of
Midwest  Resources   and  Iowa-Illinois   converted   in  the   Merger   totaled
approximately  $1.2  billion and  the aggregate  market value  of the  shares of
preferred stock  of Midwest  Power and  the preference  shares of  Iowa-Illinois
converted in the Merger totaled approximately $140 million.
 
    As  a result of the Merger, MidAmerican  owns all the issued and outstanding
capital stock of Midwest  Capital Group, Inc.  ("Midwest Capital"), under  which
its business development activities are conducted, and InterCoast Energy Company
("InterCoast"),  under  which its  nonutility  businesses operate.  The combined
operations of MidAmerican represent total annual revenues of approximately  $1.7
billion and total assets of approximately $4.5 billion.
 
    Holdings was incorporated under the laws of the State of Iowa on January 24,
1996,  to become the parent of MidAmerican and currently has only nominal equity
capital and no debt. Prior to the  consummation of the Share Exchange, the  only
business  of Holdings will be the execution, delivery and the performance of the
Agreement. Prior  to the  effectiveness of  the Share  Exchange, the  assets  of
Holdings  will  consist  of  $1,000 in  cash,  representing  the  equity capital
contributed by its  sole shareholder.  Pursuant to  the Agreement,  concurrently
with  the effectiveness of  the Share Exchange, all  previously issued shares of
Holdings will be cancelled.
 
                                       27
<PAGE>
    Immediately  after  the  Share  Exchange,  MidAmerican  will  transfer   its
ownership  of  the  capital stock  of  each  InterCoast and  Midwest  Capital to
Holdings so  that each  InterCoast  and Midwest  Capital  will become  a  direct
subsidiary  of Holdings. After the Share Exchange,  Holdings will own all of the
outstanding shares of MidAmerican Common Stock.
 
    Charts showing the corporate  structure and ownership  before and after  the
Share Exchange are presented below.
 
                                  [LOGO]
 
MIDAMERICAN UTILITY REGULATION
 
    MidAmerican,   as  an  operating  public  utility  company,  is  subject  to
regulation by the ICC, the IUB, and the South Dakota Public Utilities Commission
("SDPUC") as to  rates, territory,  service, accounts,  issuance of  securities,
affiliated  transactions,  and other  respects  under Illinois,  Iowa  and South
Dakota law.  FERC has  jurisdiction under  the Federal  Power Act  ("FPA")  over
certain of the electric utility facilities and operations, accounting practices,
issuance  of  securities  and  wholesale  electric  rates  of  MidAmerican.  See
"Required Regulatory Approvals."
 
REASONS FOR THE HOLDING COMPANY PROPOSAL
 
    GENERAL.  The principal reason for forming a holding company is to create an
organizational structure that will have greater flexibility for MidAmerican  and
enhanced  capability to address the changes  associated with operating in a more
competitive market place.  Such changes  include changing  customer demands  and
expectations,  competition from  non-traditional energy  suppliers and expanding
energy markets. MidAmerican also believes that a holding company structure  will
permit it and its affiliates to better respond to new growth opportunities while
maintaining the strength of MidAmerican's utility operations.
 
                                       28
<PAGE>
    RECENT DEVELOPMENTS IN THE UTILITY INDUSTRY.  For several years the electric
and  gas public utility industries have been encountering increasing competition
from both utility and non-utility providers of energy and related services. This
level of competition continues to increase, in both the electric and gas sectors
and on both the  wholesale and retail  levels, due to  a variety of  regulatory,
economic and technological developments.
 
    In  the late 1980's  and early 1990's,  the FERC considered  and then issued
orders significantly  changing the  operations and  regulatory requirements  for
interstate  natural gas pipeline companies.  These changes directly impact local
natural gas distribution companies ("LDCs"), including MidAmerican's gas utility
operations, by  requiring LDCs  to assume  responsibility for  the  procurement,
transportation  and storage of  natural gas to meet  customer needs. Further, in
the states in which  MidAmerican operates as an  LDC, certain classes of  retail
customers can procure natural gas from suppliers other than the LDC, such as gas
marketing companies.
 
    Federal  legislation enacted  in 1992 was  designed, among  other things, to
foster competition  in  the  electric  wholesale  market  by  allowing  for  the
ownership  and operation of  generating facilities without  regulation under the
Holding Company Act,  and by authorizing  the FERC under  certain conditions  to
order   utilities  which  own  transmission   facilities  to  provide  wholesale
transmission services to or  for other utilities  and other entities  generating
electric energy for resale. Recently proposed administrative initiatives at FERC
would  further facilitate  the development  of competitive  wholesale bulk power
markets by mandating owners  and operators of  transmission facilities to  offer
non-discriminatory  open  access  to transmission  services.  FERC  has accepted
MidAmerican's wholesale transmission tariff which provides for such open access.
In addition, brokers and marketers have also entered into the business of buying
and selling electric capacity  and energy, or  arranging sales thereof,  without
owning or operating any generation or transmission facilities.
 
    On  the retail level, industrial and large commercial electric customers may
have the ability to  own and operate facilities  to generate their own  electric
energy requirements. Such facilities may be operated by the customers themselves
or   by  other  entities.  Further,   the  legislatures  and/or  the  regulatory
commissions in a number of states (including Illinois and Iowa) have  considered
or  have indicated  that they  will be  considering electric  utility regulatory
issues that may include retail competition. Certain members of the United States
Congress  are  currently  advocating   comprehensive  legislation  which   would
eliminate  on  a national  level the  current regulatory  scheme in  the utility
industry which presently allows for regulated monopolies with designated service
territories.
 
    The changes in the electric utility industry described above may necessitate
the  restructuring  of  the  existing  vertically  integrated  electric  utility
industry. The restructuring, if it were to occur, could include the "unbundling"
of  the traditional electric utility's generation, transmission and distribution
operations. While MidAmerican has not made a determination as to the appropriate
structure for its utility  businesses, it is expected  that the holding  company
structure  will provide the requisite flexibility as future organizational needs
are addressed.
 
    BENEFITS OF A HOLDING COMPANY STRUCTURE.   The holding company structure  is
an  established form of organization for  companies conducting multiple lines of
business and is  utilized by  a significant  number of  investor owned  electric
utilities.  As  stated  above,  it  provides  a  more  flexible  framework  than
MidAmerican's present structure  within which to  address future  organizational
needs,  such  as  a  partial  or  total  separation  of  the  electric utility's
vertically integrated operations, the potential combination of utility  delivery
systems,  the unbundling  of utility  services or  the creation  of marketing or
services companies.
 
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<PAGE>
    Benefits  to be  derived from a  holding company structure  may be generally
summarized as follows:
 
    - The new structure  will better  position MidAmerican  to make  fundamental
      changes  in its business units to address the changing marketplace and the
      laws and administrative rules which regulate MidAmerican's operations.
 
    - The new structure  will permit  the use of  specific financing  techniques
      applicable  to the  particular requirements, characteristics  and risks of
      specific  business  units  without  affecting  the  capital  structure  or
      creditworthiness  of  MidAmerican and  is  expected to  increase financial
      flexibility  by  allowing  the   design  and  implementation  of   capital
      structures  that are most appropriate for each business. Since the capital
      structure of MidAmerican's utility operations will not be affected by  the
      use of such alternative financing, the regulatory approval process will be
      lessened,  enabling Holdings and  its affiliates to  respond more promptly
      and economically to growth opportunities as they may arise.
 
    - The new structure is intended to facilitate the analysis and valuation  of
      potential lines of business by management and securities analysts.
 
    - The  new  structure is  expected  to provide  additional  legal protection
      against the imposition on MidAmerican of liabilities arising out of  other
      Holdings subsidiaries.
 
EMPLOYMENT AGREEMENTS
 
    Each  of Messrs. Stanley  J. Bright and Russell  E. Christiansen has entered
into an Employment Agreement with Holdings to become effective upon consummation
of the Share Exchange.  The Employment Agreements are  in all material  respects
identical  to  and  supersede  the employment  agreements  effective  as  of the
effective time of  the Merger and  currently in effect  between MidAmerican  and
Messrs.  Bright  and  Christiansen. See  "Executive  Compensation  -- Employment
Agreements."
 
AGREEMENT AND PLAN OF EXCHANGE
 
    The Agreement in the  form attached hereto as  Annex I has been  unanimously
approved  by the respective Boards of  Directors of MidAmerican and Holdings and
by MidAmerican as the sole shareholder of Holdings. In the Share Exchange:
 
    - each outstanding share of MidAmerican  Common Stock will be exchanged  for
      one share of Holdings Common Stock;
 
    - each  outstanding share of each series of Preferred Stock will continue as
      an issued  and  outstanding  share  of  Preferred  Stock,  with  the  same
      preferences,  designations, relative rights, privileges  and powers as now
      provided by MidAmerican's Restated  Articles of Incorporation, as  amended
      ("Restated Articles of Incorporation"); and
 
    - each  share of Holdings Common Stock presently held by MidAmerican will be
      cancelled.
 
As a  result, MidAmerican  will become  a  subsidiary of  Holdings, and  all  of
Holdings  Common Stock outstanding immediately after  the Share Exchange will be
owned by the holders of MidAmerican Common Stock outstanding immediately  before
the  Share  Exchange takes  effect.  MidAmerican's first  mortgage  bonds, other
long-term  debt,  and  all  other  MidAmerican  securities  and  contracts   and
agreements  to which MidAmerican  is a party  and the terms  thereof will not be
altered by the Share Exchange. The Restated Articles of Incorporation will  also
not be changed in any way as a result of the Share Exchange.
 
REQUIRED SHAREHOLDER APPROVAL
 
    The  IBCA provides for a statutory share exchange such as the Share Exchange
contemplated herein. Under the IBCA, a statutory share exchange must be approved
by the affirmative vote of the holders  of a majority of the outstanding  shares
of  MidAmerican  Common  Stock. The  Board  of  Directors decided  to  seek such
approval   at   the   1996   Annual   Meeting   of   MidAmerican    shareholders
 
                                       30
<PAGE>
and,  subject  to the  receipt of  all required  regulatory approvals  and other
conditions, to consummate the Share Exchange thereafter. See "Effective Date  of
the Share Exchange," "Required Regulatory Approvals" and "Certain Federal Income
Tax Consequences."
 
REQUIRED REGULATORY APPROVALS
 
    ILLINOIS  PUBLIC UTILITY REGULATION.  Illinois  law requires approval by the
ICC of the Holding Company Proposal, subject to certain rules and exceptions. An
application will be filed with the ICC seeking such approval. Illinois law  does
not  set forth  a specific  time period  within which  the ICC  must act  on the
application.
 
    IOWA PUBLIC UTILITY REGULATION.  Iowa law provides that the Holding  Company
Proposal  shall not take  place if the  IUB disapproves. An  application will be
filed with the IUB for its order permitting the Holding Company Proposal to take
place. Iowa  law provides  that the  application  will be  deemed to  have  been
approved  unless the  IUB disapproves  within 90  days after  the filing  of the
application, and that  the IUB  cannot disapprove the  Holding Company  Proposal
without providing for a notice and opportunity for hearing.
 
    FEDERAL  POWER ACT.  The FERC has held that the transfer of the common stock
of a public utility company, such as MidAmerican, from its existing shareholders
to a holding company in a transaction  such as the Share Exchange constitutes  a
transfer  of the "ownership and control" of the facilities of such utility which
is subject to  FERC jurisdiction under  the FPA  and is thus  a "disposition  of
facilities"  subject to FERC review  and approval under Section  203 of the FPA.
MidAmerican will apply for such approval.
 
    ATOMIC ENERGY  ACT.   A provision  of  the Atomic  Energy Act  requires  NRC
consent  for the transfer of control of  NRC licenses. In response to an inquiry
from another utility, the NRC Staff has asserted that this provision applies  to
the  creation  of a  holding company  by  an NRC-licensed  utility company  in a
transaction such  as the  Share Exchange.  MidAmerican holds  two NRC  operating
licenses  for nuclear  generating stations  in which  MidAmerican holds minority
interests, and will apply for  NRC approval under the  Atomic Energy Act of  the
transfer of control of such licenses in the Share Exchange.
 
    Consummation  of the Share Exchange is conditioned upon receiving all of the
above approvals.  If  any  requirements  or  restrictions  are  imposed  by  any
regulatory authority having jurisdiction to review the proposed transaction as a
condition  for approval of  the Holding Company  Proposal and are  deemed by the
Board of Directors to negate the benefits of having a holding company structure,
the Board of Directors could determine not to consummate the Share Exchange. See
"Amendment or Termination."
 
REGULATION OF HOLDINGS
 
    In the  opinion of  LeBoeuf, Lamb,  Greene &  MacRae L.L.P.,  the  Company's
special  counsel, Holdings  has a  good faith basis  to claim  an exemption from
registration as a  holding company  under the  Holding Company  Act pursuant  to
Section  3(a)(1) and Rule 2 thereof. Section  3(a)(1) of the Holding Company Act
provides that  the  SEC  may,  by  rule or  order,  provide  an  exemption  from
registration  to a holding  company to the  extent that the  holding company and
every public  utility subsidiary  from which  such holding  company derives  any
material  part of its income are predominantly intrastate in character and carry
on their business substantially in a  single state. Each of the holding  company
and  its public utility subsidiary must be  organized in such single state. Rule
2, promulgated under the Holding Company Act, allows a holding company to  claim
an  exemption from  all provisions  of the  Holding Company  Act, except Section
9(a)(2), provided that the holding company and its material utility subsidiaries
meet the criteria set forth  in Section 3(a)(1) of  the Holding Company Act.  In
order to claim and maintain an exemption under Rule 2, Holdings must file a Form
U-3A-2  with the SEC prior to March 1 of each year. Such exemption is subject to
termination by the SEC  under Rule 6  upon a finding that  the Company does  not
meet  the conditions of the exemption or that  the exemption is no longer in the
public interest or the interest of investors or consumers.
 
                                       31
<PAGE>
    There are  limitations  under  the  Holding  Company  Act  and  current  SEC
interpretations  on  the extent  to which  Holdings may  derive income  from the
utility business of MidAmerican or any other material utility subsidiary outside
of the State  of Iowa  and retain  its exemption  under Section  3(a)(1) of  the
Holding Company Act. If these limitations were to be exceeded, the exempt status
of  Holdings under  the Holding Company  Act could be  jeopardized. In addition,
Section 9(a)(2) of the  Holding Company Act requires  prior SEC approval of  the
acquisition  by Holdings  of 5% or  more of  the voting securities  of any other
electric or gas utility company.
 
    On November 2,  1994, the SEC  issued a concept  release regarding  possible
modernization  of the  Holding Company  Act. Additionally,  the SEC  Division of
Investment Management  issued  on  June  21,  1995  a  report  calling  for  the
conditional  repeal  and  administrative  reform  of  the  Holding  Company Act.
MidAmerican and Holdings cannot predict whether the Holding Company Act will  be
amended  or repealed or what  action, if any, the SEC  will take on the proposed
regulatory reform.
 
    MidAmerican and  Holdings have  been  advised by  counsel  that so  long  as
Holdings is not a public utility, it will not be subject under present Illinois,
Iowa,  South Dakota or federal law to  utility regulation by the ICC, IUB, SDPUC
or FERC. Holdings will, however, be an "affiliate" and an "affiliated  interest"
of  MidAmerican  under Iowa  and Illinois  law,  respectively. As  such, certain
contracts and other transactions between MidAmerican and Holdings are subject to
review and/or must be approved by the ICC and/or the IUB.
 
BUSINESS OF HOLDINGS
 
    Upon the consummation  of the  Share Exchange,  Holdings will  be a  holding
company  owning all of the  outstanding MidAmerican Common Stock  and all of the
outstanding common stock  of each  of InterCoast  and Midwest  Capital, and  may
engage, directly or through subsidiaries, in other businesses. It is anticipated
that  all  of  Holdings'  subsidiaries (except  MidAmerican)  will  be primarily
engaged in businesses  that are not  regulated by state  or federal agencies  as
public  utilities.  Such businesses  may  have different,  and  perhaps greater,
financial risks than those involved in the regulated utility business.  Holdings
expects  to  obtain funds  it  invests in  such  subsidiaries from  dividends it
receives from its  subsidiaries and  the issuance  and sale  of its  securities.
Holdings' nonutility subsidiaries are expected to continue to comprise less than
a  predominant amount  of its  consolidated assets  and to  provide a  less than
predominant amount of its consolidated  revenues. It is also expected,  however,
that all or substantially all of Holdings's dividends for the foreseeable future
will  be provided  by the  utility operations  of MidAmerican.  There can  be no
assurance that the nonutility businesses will be successful or, if unsuccessful,
that they will not  have a direct  or indirect adverse  effect on Holdings.  Any
losses  incurred by such businesses will not  be recoverable in utility rates of
MidAmerican. See also "Reasons for the Holding Company Proposal."
 
DIVIDEND POLICY
 
    Dividends on Holdings Common  Stock will depend  for the foreseeable  future
primarily  upon  the  earnings,  financial  condition,  cash  flow  and  capital
requirements of MidAmerican. Holdings does not now, nor will it after the  Share
Exchange, conduct directly any business operations from which it will derive any
revenues.  Holdings plans to obtain funds  for its own operations from dividends
paid to Holdings on  the stock of  its subsidiaries, and  from the issuance  and
sale  of its  securities. The  amount of  dividends on  MidAmerican Common Stock
after the Share Exchange may, from time  to time, be greater than the amount  of
dividends  on Holdings Common Stock to the extent Holdings requires funds to pay
its expenses and for other corporate purposes. Although MidAmerican and Holdings
are currently  unable to  make any  assurances  with regard  to the  payment  of
dividends,  it  is  currently  contemplated  that  Holdings  will  pay quarterly
dividends on  the Holdings  Common  Stock at  the same  rate,  and on  the  same
schedule as, dividends have most recently been paid on MidAmerican Common Stock.
The  quarterly  dividend most  recently declared  by the  Board of  Directors on
MidAmerican Common Stock was $0.30 per share  paid March 1, 1996, to holders  of
record of such stock on February 8, 1996.
 
                                       32
<PAGE>
LISTING OF HOLDINGS COMMON STOCK
 
    Holdings  will apply to  list the Holdings  Common Stock on  the NYSE. It is
expected that such listing  will become effective on  the effective date of  the
Share  Exchange, subject to the  rules of the NYSE.  After the effective date of
the Share  Exchange,  the MidAmerican  Common  Stock  will no  longer  meet  the
requirements  for listing on the NYSE because all  of such stock will be held by
Holdings as the sole shareholder.
 
TREATMENT OF PREFERRED STOCK
 
    The Share Exchange and formation of  the holding company structure will  not
result  in any change in the outstanding shares of Preferred Stock. The decision
to have the Preferred Stock continue as securities of MidAmerican is based upon,
among other factors, a desire  not to alter or  potentially alter the nature  of
the  investment represented  by such  Preferred Stock,  as well  as the  need of
MidAmerican not to foreclose  future issuances of Preferred  Stock to help  meet
its  capital  requirements.  The  utility  operations  of  MidAmerican presently
constitute, and are expected to continue to constitute, the predominant part  of
the  consolidated  assets  and earning  power  of Holdings.  Accordingly,  it is
believed that the Preferred Stock will retain its current investment ratings, as
well as  its  qualification  for  legal investment  for  certain  investors,  by
remaining  as stock  of MidAmerican. The  Preferred Stock will  continue to rank
senior to  MidAmerican  Common  Stock  as  to dividends  and  as  to  assets  of
MidAmerican  upon any  liquidation. After  the Share  Exchange, MidAmerican will
continue to be subject to the informational requirements of the Exchange Act.
 
AMENDMENT OR TERMINATION
 
    By mutual consent  of each  of their  Boards of  Directors, MidAmerican  and
Holdings may amend, modify, or supplement the Agreement in such manner as may be
agreed upon by them at any time before or after approval of the Agreement by the
shareholders  of MidAmerican; provided, however, that no amendment, modification
or supplement  shall be  made  which would,  in the  judgment  of the  Board  of
Directors, materially and adversely affect the shareholders of MidAmerican.
 
    The Agreement may be terminated, at any time before or after its approval by
the  shareholders  of  MidAmerican  Common  Stock, by  action  of  the  Board of
Directors if, in  its sole  discretion, it  determines that  the Share  Exchange
would  be  inadvisable  or not  in  the  best interests  of  MidAmerican  or its
shareholders. In  making  such  determination,  the  Board  of  Directors  would
consider,  among  other  things, the  ICC,  IUB,  NRC and  FERC  orders  and any
conditions imposed  in such  orders,  failure to  receive a  favorable  Internal
Revenue Service ruling or opinion of counsel as described under "Certain Federal
Income  Tax  Consequences," or  the nature  of  any further  regulatory approval
requirements not now anticipated.  MidAmerican is unable  to predict under  what
circumstances the Share Exchange might be terminated or abandoned.
 
DISSENTERS' RIGHTS
 
    The  IBCA provides  dissenters' rights  for shareholders  who object  to the
Share Exchange  and  meet  the requisite  statutory  requirements  contained  in
Sections  1301 through  1331 of the  IBCA. Under  the IBCA, if  the Agreement is
approved  by  the  shareholders  of  MidAmerican  and  the  Share  Exchange   is
consummated, any shareholder who wishes to assert dissenters' rights must do all
of  the following: (i) deliver  to MidAmerican before the  vote is taken written
notice of  the shareholder's  intent  to demand  payment for  the  shareholder's
shares  of stock, (ii) not vote such shares of stock in favor of the approval of
the Agreement,  and  (iii)  upon  the  receipt  of  a  dissenters'  notice  from
MidAmerican, demand payment, certify whether the shareholder acquired beneficial
ownership  of such shares of stock before  the date set forth in the dissenters'
notice and deposit the certificate  or certificates representing such shares  of
stock  in accordance  with the terms  of the  notice. Upon receipt  of a payment
demand as set forth above, or at  the effective time, Holdings will pay to  such
shareholder  the amount Holdings estimates to be the "fair value" of such shares
of capital stock as  of the time  immediately prior to  the consummation of  the
Share  Exchange, excluding any  appreciation or depreciation  in anticipation of
the  Share  Exchange,  unless  exclusion  would  be  inequitable,  plus  accrued
 
                                       33
<PAGE>
interest.  A  shareholder  who  does  not  satisfy  each  of  the aforementioned
requirements is not entitled to payment for such shareholder's shares of capital
stock under the dissenters' rights provisions of  the IBCA and will be bound  by
the terms of the Share Exchange.
 
    A shareholder may dissent as to less than all of the shares of capital stock
registered  in the  name of such  shareholder only if  such shareholder dissents
with respect to  all shares beneficially  owned by any  one person and  notifies
MidAmerican  in writing of the  name and address of  each person on whose behalf
such shareholder asserts dissenters' rights.  The rights of a partial  dissenter
are  determined as if  the shares of  capital stock as  to which the shareholder
dissents and such shareholder's other shares of capital stock were registered in
the names  of  different  shareholders.  A  beneficial  shareholder  may  assert
dissenters'  rights as to shares held on  such shareholder's behalf only if such
shareholder (i) submits to MidAmerican the record shareholder's written  consent
to  the  dissent not  later  than the  time  the beneficial  shareholder asserts
dissenters' rights  and (ii)  asserts  dissenters' rights  with respect  to  all
shares  of capital stock of which  the shareholder is the beneficial shareholder
or over which such beneficial shareholder has the power to direct the vote.
 
    Set forth below is a summary of  the procedures relating to the exercise  of
dissenters'  rights under the IBCA. Reference is  made to Annex III hereto which
includes sections 1301-1331  relating to  dissenters' rights under  the IBCA  in
effect as of the date of this Proxy Statement Prospectus.
 
    The IBCA requires that a shareholder who wishes to assert dissenters' rights
(i)  deliver to  MidAmerican before  the vote  is taken,  written notice  of the
shareholder's intent to demand payment for shares of MidAmerican Common Stock if
the Share Exchange is consummated and (ii) not vote such shares of capital stock
in favor of the Share Exchange. Any such notice by dissenting shareholders  must
be  received by MidAmerican at 666 Grand  Avenue, P.O. Box 657, Des Moines, Iowa
50309-0657, Attention: Vice  President and  Corporate Secretary,  prior to  such
vote.  The submission  by a shareholder  of a blank  proxy card or  one voted in
favor of the Share Exchange  (if not revoked) will count  as a vote in favor  of
the  Share Exchange and will serve to waive dissenters' rights. However, failure
to return a proxy or  to vote against or abstain  from voting will not serve  to
waive such rights.
 
    Within  ten days after  the date on  which the Agreement  is approved by its
shareholders, MidAmerican must deliver  a written dissenters'  notice to all  of
its  shareholders that have given a written notice and not voted in favor of the
Share Exchange  in  accordance with  the  preceding paragraph.  The  dissenters'
notice  will (i) state where the payment demand  must be sent and where and when
certificates for shares of capital stock  must be deposited, (ii) supply a  form
for  demanding payment that includes  the date of the  first announcement to the
news media or to shareholders  of the terms of  the proposed Share Exchange  and
which requires that the shareholder asserting dissenters' rights certify whether
or  not such shareholder acquired beneficial ownership of the shares before such
date, (iii) set  a date by  which MidAmerican must  receive the payment  demand,
which  date will be not  less than 30 nor  more than 60 days  from the date such
dissenters' notice  is  delivered,  and  (iv) be  accompanied  by  the  relevant
sections of the IBCA. A shareholder who receives a written dissenters' notice as
described above and who wishes to assert dissenters' rights must demand payment,
certify  whether  the shareholder  acquired beneficial  ownership of  the shares
before the date set forth in the dissenters' notice and send the payment  demand
and  the certificate representing  the dissenting shares to  the location and in
accordance with the schedule included in the notice.
 
    Upon receipt of the payment demand, or at the effective time, Holdings  must
pay  each dissenting  shareholder that has  complied with the  provisions of the
IBCA the amount estimated to be the  fair value of the dissenter's shares,  plus
accrued  interest from the effective time to  the date of payment at the average
rate paid by Holdings on its bank loans or, if none, at a rate that is fair  and
equitable  under  all the  circumstances. Such  payment  must be  accompanied by
certain financial data relating to  Holdings and other specified information  as
required  by the IBCA. If the proposed  Share Exchange is not effected within 60
days after  the date  set for  demanding payment  and depositing  capital  share
certificates,  MidAmerican will  return the  deposited certificates  and, if the
Share Exchange is subsequently effected, Holdings will deliver a new dissenters'
notice and repeat the payment demand
 
                                       34
<PAGE>
procedure. Holdings may elect to withhold payment from a dissenting  shareholder
unless  the dissenting shareholder was the beneficial owner of the shares before
the date  set  forth  in  the  dissenters' notice  as  the  date  of  the  first
announcement  of the terms of the proposed Share Exchange. If Holdings so elects
to withhold payment, it must, after the effective time, estimate the fair  value
of  the shares, plus accrued interest at  the rate described above, and pay such
amount and provide certain other specified information as set forth in the IBCA,
to each such dissenting shareholder who agrees to accept it in full satisfaction
of the dissenter's demand.
 
    If (i) the dissenter believes that the  amount offered or paid is less  than
the fair value of the dissenter's shares or that the interest due is incorrectly
calculated,  (ii) Holdings fails to  make payment within 60  days after the date
set for demanding  payment, or (iii)  MidAmerican, having failed  to effect  the
Share  Exchange, does not return the deposited certificates within 60 days after
the date set  for demanding payment,  dissenters may, within  30 days after  the
payment was made or offered, notify Holdings or MidAmerican, as the case may be,
in writing of the dissenting shareholder's own estimate of the fair value of the
shares  and the amount of interest due, and  demand payment of the fair value of
such shares and interest so calculated less payments received by such dissenting
shareholder, if any. A dissenter waives the right to demand payment as described
in this  paragraph unless  the dissenter  notifies Holdings  of the  dissenter's
demand within 30 days after Holdings made or offered payment for the dissenter's
shares.  If the demand of a MidAmerican dissenter for payment remains unsettled,
Holdings must (i)  commence a  proceeding in the  Iowa District  Court for  Polk
County in Des Moines, Iowa, within 60 days after receiving the payment demand to
determine  the fair value of the shares and accrued interest or (ii) pay to each
such dissenter the  amount demanded. The  costs of a  proceeding, including  the
reasonable  compensation and expenses of appraisers appointed by the Court, will
generally be  assessed against  Holdings. The  court may,  however, assess  such
court  costs, including the fees and expenses  of counsel and experts, against a
dissenter that is found by the  court to have acted arbitrarily, vexatiously  or
not in good faith in demanding payment.
 
EFFECTIVE DATE OF THE SHARE EXCHANGE
 
    After  the  shareholders  of  MidAmerican  Common  Stock  have  approved the
Agreement, satisfactory orders of the ICC, IUB, FERC and NRC have been received,
and all other conditions  to the Share Exchange  have been satisfied or  waived,
Holdings  will file Articles of  Exchange with the Iowa  Secretary of State. The
Share Exchange will become effective on  the date such Articles of Exchange  are
filed,  unless a later date is specified therein. See also "Required Shareholder
Approval" and "Amendment or Termination."
 
EXCHANGE OF STOCK CERTIFICATES NOT REQUIRED
 
    If the Share Exchange is effected, it  will not be necessary for holders  of
MidAmerican  Common Stock to exchange their  existing certificates of such stock
for certificates of  Holdings Common  Stock. The holders  of MidAmerican  Common
Stock  will  become  the  owners  of  shares  of  Holdings  Common  Stock  on  a
share-for-share basis, and  the present stock  certificates of MidAmerican  will
automatically  represent  shares  of  Holdings  Common  Stock.  After  the Share
Exchange, as presently outstanding certificates of MidAmerican Common Stock  are
presented for transfer, new certificates bearing Holdings's name will be issued.
 
    Holdings  may  elect to  offer direct  registration  to holders  of Holdings
Common Stock. Through  the direct  registration system, investors  may elect  to
have  a  statement-based  account,  rather  than  having  to  keep  track  of  a
certificate. This would  eliminate the  risk of  loss, theft  or destruction  of
certificates and provide convenience to Holdings and its shareholders.
 
CERTAIN FEDERAL INCOME TAX CONSEQUENCES
 
    GENERAL.  The following general discussion summarizes certain federal income
tax  considerations  relating to  the Agreement.  This  summary is  included for
general information only. This summary does  not discuss all aspects of  federal
income    taxation   that   may    be   relevant   to    a   particular   holder
 
                                       35
<PAGE>
of MidAmerican Common Stock  in light of the  personal tax circumstances of  the
holder  or to certain  types of holders  of MidAmerican Common  Stock subject to
special treatment under the federal income tax laws.
 
    MidAmerican has received a satisfactory opinion of Sidley & Austin regarding
expected federal income  tax consequences  of the Share  Exchange under  current
law.  Consummation  of the  Share Exchange  is conditioned  upon the  receipt by
MidAmerican of either an Internal Revenue Service ruling or, in the alternative,
a further similar opinion of Sidley &  Austin dated as of the effective date  of
the   Share  Exchange.  Except  as  otherwise  indicated,  statements  of  legal
conclusion regarding federal tax treatments, effects or consequences as detailed
below reflect  the  opinion  of  Sidley &  Austin.  While  such  statements  and
conclusions  represent the legal  judgment of Sidley &  Austin, such judgment is
not binding in any manner upon the Internal Revenue Service or the courts.  Each
holder  of MidAmerican Common Stock should consult such holder's own tax advisor
as to  the  specific income  tax  consequences  to such  holder,  including  the
application and effect of state or local income and other tax laws.
 
    The following discussion is based on existing statutory provisions, existing
and  proposed regulations and existing  administrative interpretations and court
decisions. Future legislation,  regulations, administrative interpretations,  or
court   decisions   could   significantly   change   such   authorities,  either
prospectively or retroactively.
 
    The Share  Exchange  will  be  treated as  a  transfer  of  the  outstanding
MidAmerican  Common Stock held by the  nondissenting holders thereof to Holdings
solely in exchange  for Holdings  Common Stock,  in an  exchange qualifying  for
nonrecognition  under  Section 351  of  the Internal  Revenue  Code of  1986, as
amended ("Code").
 
    TAX IMPLICATIONS TO THE HOLDERS.   For federal income tax purposes, no  gain
or  loss will be  recognized by the nondissenting  holders of MidAmerican Common
Stock as a result of  the Share Exchange. The tax  basis of the Holdings  Common
Stock  deemed received by the  holders of MidAmerican Common  Stock in the Share
Exchange will be the same as their basis in the MidAmerican Common Stock  deemed
surrendered  in the  Share Exchange. The  holding period of  the Holdings Common
Stock deemed received by  each holder of MidAmerican  Common Stock will  include
the  period during  which such holder  held the MidAmerican  Common Stock deemed
exchanged therefor, provided  that the MidAmerican  Common Stock was  held as  a
capital asset on the date of the deemed exchange.
 
    TAX  IMPLICATIONS  TO HOLDINGS.    No gain  or  loss will  be  recognized by
Holdings for  federal  income  tax  purposes upon  the  deemed  receipt  of  the
MidAmerican  Common  Stock. The  basis of  the  MidAmerican Common  Stock deemed
received by  Holdings will  be the  same as  the aggregate  tax basis  that  the
holders  of MidAmerican Common Stock had in  such stock immediately prior to the
Share Exchange. Holdings's holding period in the MidAmerican Common Stock deemed
received in the Share Exchange should include the period during which such stock
was held by the holders of MidAmerican Common Stock.
 
    OTHER TAX ASPECTS.   Apart  from the  federal income  tax aspects  discussed
above,  no attempt has been made  to determine any tax that  may be imposed on a
holder of MidAmerican  Common Stock  by the  country, state  or jurisdiction  in
which  the holder resides or  is a citizen. Holders  of MidAmerican Common Stock
may be subject to other taxes, such as  state or local income taxes that may  be
imposed  by various jurisdictions. Holders of  MidAmerican Common Stock may also
be subject to intangible property, estate  and inheritance taxes in their  state
of  domicile. Holders of  MidAmerican Common Stock should  consult their own tax
advisors with regard to foreign, state and local income, inheritance and  estate
taxes.
 
    THE  FEDERAL INCOME  TAX DISCUSSION SET  FORTH ABOVE IS  INTENDED TO PROVIDE
ONLY A GENERAL  SUMMARY, AND DOES  NOT ADDRESS TAX  CONSEQUENCES WHICH MAY  VARY
WITH,  OR ARE CONTINGENT ON, INDIVIDUAL CIRCUMSTANCES. MOREOVER, THIS DISCUSSION
DOES NOT ADDRESS ANY  FOREIGN, FEDERAL, STATE OR  LOCAL TAX CONSEQUENCES OF  THE
 
                                       36
<PAGE>
DISPOSITION OF STOCK IN MIDAMERICAN OR HOLDINGS EITHER BEFORE OR AFTER THE SHARE
EXCHANGE. ACCORDINGLY, EACH HOLDER OF MIDAMERICAN COMMON STOCK IS STRONGLY URGED
TO  CONSULT  WITH SUCH  HOLDER'S  TAX ADVISOR  TO  DETERMINE THE  PARTICULAR TAX
CONSEQUENCES TO SUCH HOLDER OF THE SHARE EXCHANGE OR SUCH DISPOSITION OF STOCK.
 
MANAGEMENT
 
    The directors of MidAmerican  will become the directors  of Holdings at  the
effective time of the Share Exchange. If the holders of MidAmerican Common Stock
approve  the  Agreement,  they will  be  considered  also to  have  ratified the
election of such  persons as  directors of  Holdings. Until  the Share  Exchange
becomes  effective, Russell E. Christiansen, Chairman, Chairman of Office of the
Chief Executive Officer and  a Director of MidAmerican,  and Stanley J.  Bright,
President,  President of Office of the Chief Executive Officer and a Director of
MidAmerican, will be the only directors of Holdings.
 
    The current executive officers  of Holdings are  also executive officers  of
MidAmerican. The Holdings executive officers are:
 
<TABLE>
<S>                     <C>
Russell E.
Christiansen            Chairman
Stanley J. Bright       President
Lance E. Cooper         Vice President and Treasurer
John A. Rasmussen, Jr.  Vice President and General Counsel
Paul J. Leighton        Corporate Secretary
</TABLE>
 
    See  "Election  of  Directors"  for  information  with  respect  to  Messrs.
Christiansen and Bright. Mr.  Cooper is a Group  Vice President of  MidAmerican,
Mr.  Rasmussen is a Group Vice President  and General Counsel of MidAmerican and
Mr. Leighton is  a Vice President  and Corporate Secretary  of MidAmerican.  The
foregoing officers have held their respective positions in MidAmerican since the
effective  time of the  Merger creating MidAmerican. Prior  thereto, each of the
foregoing officers  held similar  positions  with their  respective  predecessor
companies.
 
HOLDINGS CAPITAL STOCK
 
    The  provisions  of  the  Restated  Articles  of  Incorporation  of Holdings
("Holdings Restated Articles  of Incorporation") which  establish the rights  of
the  holders of the Holdings  Common Stock are essentially  the same as those in
the Restated  Articles  of  Incorporation. The  Holdings  Restated  Articles  of
Incorporation are attached to this Proxy Statement/Prospectus as Annex II.
 
    AUTHORIZED.    The  authorized capital  stock  of Holdings  consists  of 350
million shares of Holdings Common Stock, no par value, and 100 million shares of
preferred stock, no par value.
 
    DISTRIBUTIONS.  Holders of Holdings Common Stock are entitled to receive (a)
dividends when, as and if declared by its board of directors, and (b) all of the
assets of  Holdings available  for distribution  on a  pro rata  basis upon  its
liquidation, dissolution or winding up, after the payment of all debts and other
obligations.
 
    VOTING.  Each share of Holdings Common Stock entitles its holder to one vote
on  matters properly  submitted to a  vote of Holdings  shareholders. Holders of
Holdings Common Stock do not have the right to cumulate their votes in elections
of directors.
 
    No holder of Holdings Common Stock has any preemptive or preferential  right
to  subscribe for any additional issue of  Holdings Common Stock or to subscribe
for  any  security  convertible  into  Holdings  Common  Stock.  No  redemption,
conversion  or  sinking fund  provisions are  applicable  to shares  of Holdings
Common Stock. The  Holdings Common Stock  issued in the  Share Exchange will  be
fully paid and nonassessable.
 
STOCK PLANS
 
    If   the  Share   Exchange  is   consummated,  Holdings   will  adopt  plans
substantially  similar  to  the   MidAmerican  Shareholder  Options  Plan,   the
MidAmerican  Employee Stock  Purchase Plan,  the MidAmerican  Retirement Savings
Plan   and    the   MidAmerican    1995   Long-Term    Incentive   Plan.    Such
 
                                       37
<PAGE>
plans will provide that Holdings Common Stock (or stock units) will be delivered
instead  of MidAmerican Common Stock (or stock units) pursuant to such plans. By
approving the  Agreement,  the  holders  of MidAmerican  Common  Stock  will  be
considered  also to  have ratified  the adoption  of such  plans by  Holdings to
provide for the delivery of Holdings Common Stock thereunder.
 
MIDAMERICAN COMMON STOCK MARKET PRICES AND DIVIDENDS
 
    The MidAmerican Common  Stock is listed  and traded on  the NYSE. The  table
below  sets forth, for  the periods indicated, the  dividends declared per share
and the high  and low sales  prices per  share of the  MidAmerican Common  Stock
("MEC")  and the  common stock  of Midwest  Resources ("MWR")  and Iowa-Illinois
("IWG") as reported in  The Wall Street  Journal as New  York Stock Exchange  --
Composite Transactions. The dividends declared per share and high and low prices
per share for Iowa-Illinois in the table below have not been adjusted to reflect
the exchange ratio received in the Merger.
 
<TABLE>
<CAPTION>
                                                                                           PRICE RANGE
                                                                 ----------------------------------------------------------------
                                      DIVIDENDS DECLARED             MIDAMERICAN          IOWA-ILLINOIS           RESOURCES
                                -------------------------------  --------------------  --------------------  --------------------
                                   MEC        IWG        MWR       HIGH        LOW       HIGH        LOW       HIGH        LOW
                                ---------  ---------  ---------  ---------  ---------  ---------  ---------  ---------  ---------
<S>                             <C>        <C>        <C>        <C>        <C>        <C>        <C>        <C>        <C>
1996..........................  $    0.30
1995
  4th Quarter.................  $    0.30  $  --      $  --      $   171/8  $     15   $  --      $  --      $  --      $  --
  3rd Quarter.................       0.30     --         --          155/8      135/8     --         --         --         --
  2nd Quarter.................     --         0.4325       0.29     --         --            22       197/8        15       137/8
  1st Quarter.................     --         0.4325       0.29     --         --          221/8        19       145/8      133/8
1994
  4th Quarter.................  $  --      $  0.4325  $    0.29  $  --      $  --      $   205/8  $   187/8  $   141/2  $   127/8
  3rd Quarter.................     --         0.4325       0.29     --         --          221/2      191/4      153/8      131/2
  2nd Quarter.................     --         0.4325       0.29     --         --          241/2      197/8      163/4      137/8
  1st Quarter.................     --         0.4325       0.29     --         --          243/4      223/8        18         16
1993
  4th Quarter.................  $  --      $  0.4325  $    0.29  $  --      $  --      $   263/8  $   225/8  $   191/2  $   171/8
</TABLE>
 
EXPERTS
 
    The  audited financial statements  and schedules incorporated  in this Proxy
Statement/Prospectus by reference  from the  MidAmerican Annual  Report on  Form
10-K  for the calendar year ended December  31, 1995 have been audited by Arthur
Andersen LLP, independent public accountants, as indicated in their reports with
respect thereto, and are included herein in reliance upon the authority of  such
firm as experts in auditing and accounting in giving such reports.
 
LEGAL MATTERS
 
    Certain  legal matters relating to the issuance of the Holdings Common Stock
in the Share Exchange will be passed upon by Sidley & Austin, One First National
Plaza, Chicago, Illinois  60603. Legal  matters relating to  the Public  Utility
Holding Company Act of 1935, as amended, have been passed upon by LeBoeuf, Lamb,
Greene  & MacRae, L.L.P., a limited liability partnership including professional
corporations.
 
                                     ITEM 3
              PROPOSAL TO APPROVE AND ADOPT THE MIDAMERICAN ENERGY
                     COMPANY 1995 LONG-TERM INCENTIVE PLAN
 
    INTRODUCTION.   On  July  26,  1995, the  Board  of  Directors  adopted  the
MidAmerican  Energy Company 1995 Long-Term  Incentive Plan (the "Plan"), subject
to approval by the shareholders. If approved, the Plan will become effective  on
the  date  of  such  approval and  continue  in  effect for  a  ten  year period
thereafter. See  "Directors'  Compensation," "Securities  Ownership  of  Certain
Beneficial   Owners   and   Management,"   "Executive   Compensation"   and  the
"Compensation Committee Report  on Executive Compensation"  for a discussion  of
restricted stock and stock option awards made at the
 
                                       38
<PAGE>
time  of the adoption  of the Plan, subject  to the approval of  the Plan by the
shareholders. The Plan is an incentive compensation plan for officers and  other
key  employees of the  Company and its subsidiaries  and provides for restricted
stock grants to non-employee directors as a part of their total compensation for
service as a director of the Company.
 
    The  full  text   of  the   Plan  appears  in   Annex  IV   to  this   Proxy
Statement/Prospectus and should be referred to for a complete description of its
provisions. A summary of the material features of the Plan appears below.
 
    RECOMMENDATION.    THE BOARD  OF DIRECTORS  UNANIMOUSLY RECOMMENDS  THAT THE
SHAREHOLDERS OF MIDAMERICAN COMMON STOCK VOTE "FOR" THE PROPOSAL TO APPROVE  AND
ADOPT THE 1995 LONG-TERM INCENTIVE PLAN.
 
    PURPOSE.   The  purpose of  the Plan is  to (i)  align the  interests of the
Company's shareholders and the recipients of awards under the Plan by increasing
the proprietary interest of such recipients in the Company's growth and success,
(ii)  advance  the  interests  of  the  Company  by  attracting  and   retaining
non-employee directors, officers and other key employees and (iii) motivate such
participants   to  act  in  the  long-term   best  interests  of  the  Company's
shareholders.
 
    ADMINISTRATION.  The  Plan provides for  administration by the  Compensation
Committee  of the Board  of Directors (the "Committee"),  consisting of three or
more members of the Board  of Directors each of  whom shall be a  "disinterested
person"  within the meaning of Rule 16b-3  of the Exchange Act. Among the powers
granted to the  Committee are  the authority  to interpret  the Plan,  establish
rules and regulations for its operation, select employees of the Company and its
subsidiaries  to receive awards under the Plan and determine the form and amount
and other terms and conditions of such awards. The Plan authorizes the Committee
to delegate its power  and authority under  the Plan to  the President or  other
executive  officer of the Company; provided, however, that the Committee may not
delegate its power and authority with regard to the selection for  participation
in  the Plan of an officer or other person subject to Section 16 of the Exchange
Act or decisions concerning the timing, pricing or amount of an award to such an
officer or other person.
 
    ELIGIBILITY FOR  PARTICIPATION.   Officers and  other key  employees of  the
Company  and its subsidiaries are eligible to  be selected to participate in the
Plan.  Non-employee  directors  are  eligible  to  participate  in  Article   V,
"Restricted  Stock Awards for  Non-Employee Directors," of  the Plan. Other than
with respect to the  participation of non-employee  directors, the selection  of
participants  is  within  the discretion  of  the Committee.  The  Committee has
initially determined that  the ten  executive officers  of the  Company and  its
subsidiaries  are eligible  to participate in  the stock options  portion of the
Plan and  twenty officers  the  Company and  its  subsidiaries are  eligible  to
participate in the restricted stock awards portion of the Plan.
 
    TYPES  OF AWARDS.   The Plan  provides for  the grant of  any or  all of the
following types of awards: (i) options to purchase shares of MidAmerican  Common
Stock  in the  form of incentive  stock options or  non-statutory stock options,
(ii) SARs in the form of tandem  SARs or free-standing SARs, (iii) stock  awards
in  the  form of  restricted stock  or unrestricted  stock and  (iv) performance
shares. Such  awards may  be granted  singly,  in combination  or in  tandem  as
determined by the Committee.
 
    AMENDMENT  OF THE PLAN.   The Board  of Directors may  terminate the Plan or
amend it at any time as it shall deem advisable, subject to shareholder approval
as may be required by applicable  law, rule or regulation, including Section  16
of  the Exchange Act, provided that no amendment may be made without shareholder
approval if such amendment  would (i) increase the  maximum number of shares  of
MidAmerican  Common Stock  available under  the Plan  (subject to  adjustment as
provided in the Plan), (ii) reduce the minimum purchase price in the case of  an
option or an SAR or (iii) effect any change inconsistent with Section 422 of the
Internal  Revenue Code of 1986, as amended (the "Code"), or (iv) extend the term
of the Plan.
 
                                       39
<PAGE>
    AVAILABLE  SHARES.   Four  million shares  of  MidAmerican Common  Stock are
available for  grant under  the Plan  subject to  reduction by  the sum  of  the
aggregate  number of shares of MidAmerican Common Stock that are issued upon the
grant of  a  stock  award  and which  become  subject  to  outstanding  options,
free-standing  SARs  and  performance  shares.  In  the  event  such  shares  of
MidAmerican  Common  Stock  are  not  issued  or  delivered  by  reason  of  the
expiration,  termination, cancellation or forfeiture of  such award or by reason
of the delivery or withholding of shares of MidAmerican Common Stock to pay  all
or  a portion of  the exercise price  of an award,  if any, to  satisfy all or a
portion of  the tax  withholding obligations  relating to  an award,  then  such
shares of MidAmerican Common Stock shall again be available under the Plan.
 
    LIMITATION  ON AWARDS.  Included within  the 4,000,000 shares of MidAmerican
Common Stock available for grants under the Plan, is a maximum of 600,000 shares
available for awards granted in the form  of stock awards under the Plan  during
its  term.  The  amount  of  all awards  to  individual  participants  is  to be
determined by the Committee in its sole discretion.
 
    STOCK OPTIONS.  Under the Plan, the  Committee may grant awards in the  form
of  options to purchase shares of  MidAmerican Common Stock. The Committee will,
with regard to each stock option, determine the number of shares subject to  the
option,  the manner and  time of the  option's exercise, a  vesting schedule, if
any, and  the exercise  price per  share subject  to the  option. In  no  event,
however,  may the exercise price of a stock option be less than 100% of the fair
market value of the MidAmerican Common Stock  on the date of the stock  option's
grant  or the  exercise period  be longer than  ten years  from the  date of the
option grant. Upon exercise,  the option price  may be paid in  cash or, at  the
discretion   of  the  Committee,  in  shares  of  MidAmerican  Common  Stock,  a
combination thereof, or such other  consideration as the Plan permits.  Unvested
stock  options of  a participant who  terminates employment with  the Company by
reason of disability, retirement upon reaching at least age 55 with a minimum of
five years of employment with the Company  or death will become fully vested  at
the  time of termination. Any  stock option granted in  the form of an incentive
stock option will  satisfy the  applicable requirements  of Section  422 of  the
Code.
 
    STOCK  APPRECIATION RIGHTS.  The Plan authorizes the Committee to grant SARs
either in tandem with a stock option  ("Tandem SARs") or independent of a  stock
option  ("Free-Standing SARs"). An SAR is a  right to receive a payment equal to
the appreciation  in market  value at  exercise  in excess  of the  grant  price
multiplied by the stated number of shares of MidAmerican Common Stock subject to
the exercise.
 
    A  Tandem SAR granted in connection with  an incentive stock option shall be
granted at the same time as the incentive stock option is granted. A Tandem  SAR
shall  be exercisable to the extent its  related stock option is exercisable and
the exercise price of such  an SAR shall be the  same as the option price  under
the  related stock option. Upon the exercise of a stock option as to some or all
of the shares related to  the award, the related  Tandem SAR shall be  cancelled
automatically  to the extent of the number of shares covered by the stock option
exercise.
 
    The Committee will, with regard to a Free-Standing SAR, determine the number
of shares of MidAmerican Common Stock subject to the SAR, the manner and time of
the SAR's exercise  and the  exercise price of  the SAR.  However, the  exercise
price  of a Free-Standing  SAR will in  no event be  less than 100%  of the fair
market value of the  MidAmerican Common Stock  on the date of  the grant of  the
Free-Standing SAR.
 
    STOCK AWARDS.  The Plan authorizes the Committee to grant awards in the form
of  shares of MidAmerican Common Stock,  either restricted or unrestricted. Such
awards  will  be  subject  to   such  terms,  conditions,  restrictions   and/or
limitations,  if any, as  the Committee deems appropriate  including, but not by
way of  limitation, restrictions  based on  performance measures  and  continued
employment.
 
                                       40
<PAGE>
    PERFORMANCE  SHARES.  The Plan allows for the grant of "performance shares."
For purposes of the  Plan, "performance shares" means  a right, contingent  upon
the  attainment of specified performance measures within a specified performance
period, to  receive  one  share  of  MidAmerican  Common  Stock,  which  may  be
restricted,  or in lieu  of all or a  portion thereof, the  fair market value of
such performance share. The  performance objectives to  be achieved during  such
period  and the measure of whether and  to what extent such objectives have been
attained will also be determined by the Committee.
 
    OTHER TERMS OF AWARDS.   The Plan  describes the continuation,  termination,
nonforfeiture and forfeiture of stock options, SARs, stock and performance share
awards  in  the event  of  death, disability,  retirement  or termination  as an
employee of the Company. Transfers, assignments or pledges of such awards  other
than  by will or the laws of descent and distribution or as permitted by Section
16 of the Exchange Act are not permitted.
 
    RESTRICTED STOCK FOR NON-EMPLOYEE DIRECTORS.   The Plan provides that as  of
the  date of adoption of  the Plan, each non-employee  director (a member of the
Board of Directors  who is  not an  officer or employee  of the  Company or  any
subsidiary)  is to receive a restricted stock award of 800 shares of MidAmerican
Common Stock. Furthermore, upon the initial election of a director to the  Board
of  Directors, whether at an annual election  or to fill a vacancy, a restricted
stock award consisting of 800 shares  of MidAmerican Common Stock shall be  made
to   such  director.  Additional  restricted  stock  awards  of  800  shares  of
MidAmerican Common  Stock  will  be  made  to  each  non-employee  director  who
continues  on  the Board  of  Directors annually  on  May 1  beginning  in 1996,
assuming approval of the  Plan by the holders  of MidAmerican Common Stock.  The
shares  are restricted until  such time as  the non-employee director terminates
service as a  director of the  Company and become  nonforfeitable upon death  or
disability  while serving as a  member of the Board,  failure to be reelected to
the Board after being duly nominated, retirement from the Board after five years
of service as a director  or removal from the Board  or failure to be  nominated
for reelection following a change in control of the Company.
 
    CHANGE  IN CONTROL.   The  Plan provides that  in the  event of  a change in
control (as defined  in the  Plan) (i) all  outstanding options  and SARs  shall
immediately  become exercisable in full,  (ii) the restriction period applicable
to any outstanding  restricted stock  award shall lapse,  (iii) the  performance
period applicable to any outstanding performance share award will lapse and (iv)
the  performance measures applicable  to any outstanding  restricted stock award
(if any) and to  any outstanding performance  share award will  be deemed to  be
satisfied  at the target level. The Share  Exchange will not constitute a change
of control.
 
    FEDERAL INCOME TAX CONSEQUENCES.   The following is  a brief summary of  the
principal  United States  federal income tax  consequences under the  Code as it
relates to awards under the  Plan. This summary is  not intended to be  complete
and,  among other  things, does  not describe  state or  local tax consequences.
Capital gains are currently taxed at a minimum federal rate of 28 percent, while
ordinary income  rates are  graduated to  a maximum  rate of  39.6 percent.  The
following  discusses  the  characterization  of income  under  the  various Plan
features as ordinary income or capital gain or loss.
 
        Incentive Stock Options.  A participant who receives an incentive  stock
option  will not be  treated as receiving  taxable income upon  the grant of the
option or upon its  exercise, provided the exercise  occurs, in general,  during
employment  or within  three months after  termination of  employment for cause.
However, any appreciation in share value since the date of the grant will be  an
item  of tax preference at the time of exercise in determining liability for the
alternative minimum tax. If stock acquired pursuant to an incentive stock option
is not sold or otherwise disposed of within two years from the date of grant  of
the  option  and is  held for  at least  one  year after  delivery of  the stock
purchased by  the option,  any  gain or  loss resulting  from  a sale  or  other
disposition  of the stock will be treated  as long-term capital gain or loss. If
stock acquired upon exercise of an  incentive stock option is disposed of  prior
to the expiration of such holding periods, the participant will realize ordinary
income  in the year of such disposition in  an amount equal to the excess of the
fair market value of the stock on
 
                                       41
<PAGE>
the date exercised over the exercise price. Any gain in excess of that  ordinary
income  amount generally will be taxed at  capital gains rates. However, under a
special rule, the ordinary income realized upon a disqualifying disposition will
not exceed the amount of the participant's gain.
 
    The Company will not be entitled to  any deduction as a result of the  grant
or  exercise of  any incentive stock  option, or  on a later  disposition of the
stock received, except  that in the  event of a  disqualifying disposition,  the
Company  will be entitled to a deduction  equal to the amount of ordinary income
realized by the participant, or, if less, the amount equal to the excess of  the
fair market value of the stock on the date exercised over the exercise price.
 
        Non-Statutory  Stock Options.   No taxable income will  be realized by a
participant upon the grant of a  non-statutory stock option. Upon exercise of  a
non-statutory  stock option, the participant will  realize ordinary income in an
amount measured by the excess of the fair market value of the shares on the date
exercised over  the  option  price,  and  the Company  will  be  entitled  to  a
corresponding  deduction. In the case of  a participant subject to Section 16(b)
of the Exchange  Act, unless the  participant elects otherwise,  the amount  and
timing  of such income (and  deduction by the Company)  will instead be based on
the fair market value of  the shares on the  date the Section 16(b)  restriction
lapses  as to  such shares.  Upon a  subsequent disposition  of the  shares, the
participant will realize  short-term or long-term  capital gain or  loss to  the
extent  of any intervening appreciation or depreciation. The Company will not be
entitled to any further deduction at that time.
 
        SARs.   At  the time  of  receiving an  SAR,  the participant  will  not
recognize  any taxable income. Likewise,  the Company will not  be entitled to a
deduction for  the  SAR. Upon  the  exercise of  an  SAR, the  participant  will
recognize  ordinary income  in an  amount equal to  the cash  and/or fair market
value of the shares received. However,  participants who are subject to  Section
16(b)  of the Exchange  Act and who  receive stock, will  not recognize ordinary
income until the restrictions imposed by Section 16(b) lapse and the stock  will
be  valued on that date. Nevertheless, such  participants may elect, at the date
of exercise, to recognize ordinary income pursuant to Section 83(b) of the Code.
If such an election is made, the stock is valued on the date of exercise of  the
SAR.  If a participant receives  stock, then the fair  market value of the stock
(recognized  as  ordinary  income)  becomes  the  participant's  tax  basis  for
determining  gains or losses on  the subsequent sale of  such stock. The Company
will be  entitled  to a  deduction  in  the amount  and  at the  time  that  the
participant first recognizes ordinary income.
 
        Performance  Shares.   A  participant who  has been  granted performance
shares will not realize taxable income at the time of the grant and the  Company
will  not be entitled  to a deduction  at that time.  A participant will realize
ordinary income at the time  the award is paid equal  to the excess of the  fair
market  value  of the  MidAmerican  Common Stock  over  the amount  paid  by the
participant, if  any,  for  such shares.  The  Company  will be  entitled  to  a
corresponding deduction.
 
        Restricted  Shares.   A  participant  receiving an  award  of restricted
shares of MidAmerican Common Stock will  not realize taxable income at the  time
of  the grant and the Company will not  be entitled to a deduction at that time,
assuming that the restrictions constitute  a substantial risk of forfeiture  for
federal  income tax purposes. When such restrictions lapse, the participant will
receive taxable income in an amount equal to the excess of the fair market value
of the shares at such  time over the amount, if  any, paid for such shares.  The
Company will be entitled to a corresponding deduction.
 
    The  tax treatment of restricted shares of MidAmerican Common Stock which is
disposed of will depend upon whether the participant made an election to include
the value of the stock in income  when awarded. If the participant made such  an
election,  any disposition thereafter  will result in  a long-term or short-term
capital gain  depending upon  the period  the restricted  shares of  MidAmerican
Common  Stock were held.  If an election  is not made,  disposition prior to the
lapse of restrictions will result in ordinary income to the participant equal to
the amount received on disposition. The Company may also deduct the amount.
 
                                       42
<PAGE>
    NEW   PLAN   BENEFITS.      As    described   elsewhere   in   this    Proxy
Statement/Prospectus,  certain conditional awards have  been made under the Plan
subject to shareholder  approval of the  Plan. The following  table shows  these
awards.
 
                               NEW PLAN BENEFITS
                           MIDAMERICAN ENERGY COMPANY
                         1995 LONG-TERM INCENTIVE PLAN
 
<TABLE>
<CAPTION>
                                                                            PERFORMANCE               RESTRICTED
                                                                               SHARE                     STOCK
                                                                              DOLLAR                    DOLLAR
                                                     STOCK     PERFORMANCE     VALUE     RESTRICTED      VALUE
NAME AND POSITION                                 OPTIONS (#)  SHARES (#)     ($)(1)      STOCK (#)     ($)(2)
- ------------------------------------------------  -----------  -----------  -----------  -----------  -----------
<S>                                               <C>          <C>          <C>          <C>          <C>
Russell E. Christiansen                              150,000       13,675      199,997       N/A          N/A
  Chairman, Chairman of the Office of CEO
Stanley J. Bright                                    150,000       11,966      175,003      N/A          N/A
  President, President of the Office of CEO
Richard C. Engle                                      60,000        6,291       92,006      N/A          N/A
  Executive Vice President
Lynn K. Vorbrich                                      60,000        6,291       92,006      N/A          N/A
  President, Electric Division
Donald C. Heppermann                                  60,000        5,607       82,002      N/A          N/A
  President, InterCoast Energy Company
Beverly A. Wharton                                    60,000        5,470       79,999      N/A          N/A
  President, Gas Division
All Executive Officers,                              700,000       63,177      923,964      N/A          N/A
  including the above
All Directors who are                                N/A          N/A          N/A           25,600      398,200
  not executive officers
All employees, excluding                             N/A           23,100      337,838      N/A          N/A
  executive officers
</TABLE>
 
- ------------------------
 
(1)  Based on the  closing price of  the MidAmerican Common  Stock of $14.625 on
    July 3, 1995, the effective date of the conditional grant of the awards. The
    amount of Performance Shares represents the amount that could be paid out at
    the end of the applicable performance period if the performance measures are
    achieved. If performance  does not  meet the performance  measures, then  no
    awards   will  be  paid.  Performance  Shares  will  be  fully  vested  upon
    disability, death  or a  change  in control.  The  Share Exchange  will  not
    constitute  a change in control. Unless otherwise determined by the Board of
    Directors at its discretion, recipients of Performance Shares who  terminate
    employment  due to retirement prior to the end of the applicable performance
    period will be vested in the pro rata amount of such shares as determined by
    their length of employment during the performance period.
 
(2) Based on the July 25, 1995  market price of the MidAmerican Common Stock  of
    $14.50  for 800 shares which  was the date of  the conditional grant of such
    800 shares and  on the  December 31, 1995  market price  of the  MidAmerican
    Common  Stock of $16.75  for the balance  of the shares  of Restricted Stock
    expected to be granted on May 1, 1996.
 
                                       43
<PAGE>
    HOLDINGS COMMON STOCK.   If the  Holding Company Proposal  and the Plan  are
approved  by the holders of  the MidAmerican Common Stock,  the Plan will become
the plan of Holdings  and Holdings Common  Stock will be  issued under the  Plan
instead of MidAmerican Common Stock.
 
                RELATIONSHIP WITH INDEPENDENT PUBLIC ACCOUNTANTS
 
    The  Board of  Directors has selected  Arthur Andersen  LLP, accountants and
auditors, to examine the books, accounts and records of the Company for the year
1996 and to render  their auditors' report thereon.  A representative of  Arthur
Andersen  LLP  is  expected  to  be  present  at  the  annual  meeting  with the
opportunity to make a statement if so desired and to be available to respond  to
appropriate questions.
 
                           1997 SHAREHOLDER PROPOSALS
 
    In  order for  proposals of  MidAmerican Energy  Company Common Shareholders
intended to be presented  at the annual  meeting of shareholders  to be held  in
1997  to be  considered for  inclusion in  the MidAmerican  Energy Company Proxy
Statement and form  of proxy relating  to that meeting,  such proposals must  be
received by the Company on or before November 18, 1996. Proposals should be sent
to  the  Corporate  Secretary, MidAmerican  Energy  Company, P.O.  Box  657, Des
Moines, Iowa 50303-0657.
 
                                 OTHER MATTERS
 
    The  annual  report  of  MidAmerican  Energy  Company,  including  financial
statements  for the year  ended December 31,  1995, is included  with this Proxy
Statement/Prospectus. Additional  copies of  the report  will be  mailed to  any
shareholder upon request.
 
    The  Board of Directors does not know of any other matter to be presented at
the meeting. If, however, any other matter properly comes before the meeting, it
is the  intention  of the  persons  named in  the  proxies to  vote  thereon  in
accordance with their judgment.
 
                                          By Order of the Board of Directors
                                          Paul J. Leighton
                                          VICE PRESIDENT AND CORPORATE SECRETARY
 
Des Moines, Iowa
March 18, 1996
 
                                       44
<PAGE>
                                                                         ANNEX I
 
                         AGREEMENT AND PLAN OF EXCHANGE
 
    THIS  AGREEMENT AND PLAN OF EXCHANGE  ("Agreement"), dated as of January 24,
1996, is between MidAmerican Energy Company, an Iowa corporation  ("MidAmerican"
or  "Company"), the company whose shares will  be acquired pursuant to the Share
Exchange (described hereinafter),  and MidAmerican Energy  Holdings Company,  an
Iowa  corporation ("Holdings"), the acquiring  company. MidAmerican and Holdings
are hereinafter sometimes referred to, collectively, as the "Companies".
 
                                  WITNESSETH:
 
    WHEREAS, the  authorized  capital  stock  of  MidAmerican  consists  of  (a)
350,000,000  shares of common stock without  par value ("Company Common Stock"),
of which  100,751,713 shares  are issued  and outstanding,  and (b)  100,000,000
shares  of preferred  stock, without par  value ("Company  Preferred Stock"), of
which 3,217,769 shares are issued and outstanding; and
 
    WHEREAS, Holdings has 1,000 shares of common stock, no par value, ("Holdings
Common  Stock")  presently  authorized,  issued  and  outstanding,  and  at  the
Effective  Time  (as  hereinafter  defined),  the  authorized  capital  stock of
Holdings will consist of (a) 350,000,000 shares of Holdings Common Stock and (b)
100,000,000 shares  of  preferred  stock,  no  par  value  ("Holdings  Preferred
Stock"); and
 
    WHEREAS, the Boards of Directors of each of MidAmerican and Holdings deem it
desirable and in the best interests of the Companies and their shareholders that
each  share of Company Common Stock be  exchanged for a share of Holdings Common
Stock with the result that Holdings becomes the owner of all outstanding Company
Common Stock and each  holder of Company  Common Stock becomes  the owner of  an
equal  number of shares of Holdings Common  Stock, all pursuant to the terms and
conditions hereinafter set forth ("Share Exchange"); and
 
    WHEREAS, the Iowa Business Corporation Act ("IBCA") permits share  exchanges
which bind all of the shareholders upon the approval of a plan of share exchange
by the holders of a majority of all votes entitled to be voted thereon; and
 
    WHEREAS,   the  Boards  of  Directors   of  MidAmerican  and  Holdings  have
recommended that their  respective shareholders approve  the Share Exchange  and
this  Agreement, and this Agreement  has been approved by  the requisite vote of
Holdings' shareholder pursuant to Section 490.1103 of the IBCA;
 
    NOW, THEREFORE, in  consideration of  the premises, and  of the  agreements,
covenants  and conditions hereinafter  contained, the parties  hereto agree with
respect to the Share Exchange that, at the Effective Time, each share of Company
Common Stock issued and outstanding immediately prior to the Effective Time will
be exchanged for  one share of  Holdings Common  Stock, and that  the terms  and
conditions of the Share Exchange and the method of carrying the same into effect
are as follows:
 
                                   ARTICLE I
 
    Subject to the satisfaction of the conditions and obligations of the parties
hereto,  the Share  Exchange will  be effective upon  the filing,  with the Iowa
Secretary of State, in accordance with  the IBCA, of articles of share  exchange
("Articles  of Exchange") with  respect to the  Share Exchange or  at such later
time as may be stated in the Articles  of Exchange (the time at which the  Share
Exchange becomes effective being referred to herein as the "Effective Time").
 
                                      I-1
<PAGE>
                                   ARTICLE II
 
    (1) The name of the corporation whose shares will be acquired is MidAmerican
Energy  Company, and the name of the acquiring corporation is MidAmerican Energy
Holdings Company.
 
    (2) The terms and conditions  of the exchange, and  the manner and basis  of
exchanging  the shares  of Company  Common Stock  to be  acquired for  shares of
Holdings Common Stock, are as follows:
 
    At the Effective Time:
 
        (a)  Each  share  of  Company   Common  Stock  issued  and   outstanding
    immediately  prior to the Effective Time shall be exchanged for one share of
    Holdings  Common   Stock,  which   shall  thereupon   be  fully   paid   and
    non-assessable,   except  the  shares  for  which  dissenters'  rights  were
    exercised;
 
        (b) Holdings  shall become  the  owner and  holder  of each  issued  and
    outstanding share of Company Common stock so exchanged;
 
        (c)   Each  share  of  Holdings  Common  Stock  issued  and  outstanding
    immediately prior  to  the  Effective  Time shall  be  cancelled  and  shall
    thereupon  constitute an  authorized and  unissued share  of Holdings Common
    Stock;
 
        (d) The former owners of Company Common Stock shall be entitled only  to
    receive shares of Holdings Common Stock as provided herein; and
 
        (e)  Holders  of Company  Common Stock  who exercised  their dissenters'
    rights in accordance with the IBCA  shall be entitled to receive payment  of
    "fair value" for their shares of Company Common Stock.
 
    Shares  of outstanding  Company Preferred  Stock shall  not be  exchanged or
otherwise affected by the Share Exchange.
 
                                  ARTICLE III
 
    The  consummation  of  the  Share  Exchange  is  subject  to  the  following
conditions precedent:
 
        (1)  The receipt of the requisite approval  of the Share Exchange by the
    holders of Company Common Stock;
 
        (2) The  filing  of  Restated  Articles  of  Incorporation  of  Holdings
    increasing  the number  of authorized  shares of  Holdings Common  Stock and
    Holdings  Preferred   Stock   to   350,000,000   and   100,000,000   shares,
    respectively, in the form attached hereto as Exhibit A;
 
        (3) The satisfaction of the respective obligations of the parties hereto
    set  forth in  this Agreement  in accordance  with the  terms and conditions
    herein contained;
 
        (4) The  execution and  filing of  Articles of  Exchange with  the  Iowa
    Secretary  of State  pursuant to  the IBCA  in the  form attached  hereto as
    Exhibit B;
 
        (5) The approval for listing upon official notice of issuance by the New
    York Stock Exchange of Holdings Common Stock to be issued in accordance with
    this Agreement;
 
        (6) The  receipt of  either a  ruling of  the Internal  Revenue  Service
    satisfactory  to  MidAmerican  and its  counsel,  or an  opinion  of counsel
    satisfactory to MidAmerican,  with respect  to the tax  consequences of  the
    Share Exchange and other transactions incident thereto; and
 
        (7)  The receipt  of such  orders, authorizations,  approvals or waivers
    from all jurisdictional  regulatory bodies,  boards or  agencies, which  are
    required in connection with the Share Exchange and related transactions.
 
                                      I-2
<PAGE>
                                   ARTICLE IV
 
    Holdings  will not  engage in any  business following the  execution of this
Agreement until the consummation of the Share Exchange, other than such business
as is necessary to organize and maintain the corporate status and good  standing
of  Holdings in  the State  of Iowa  and such  other states  in which  it may be
authorized to conduct business.
 
                                   ARTICLE V
 
    This Agreement may be amended, modified or supplemented, or compliance  with
any  provision or  condition hereof may  be waived,  at any time,  by the mutual
consent of the Board of Directors of each of MidAmerican and Holdings; provided,
however, that no  such amendment,  modification, supplement or  waiver shall  be
made  or effected, if such amendment,  modification, supplement or waiver would,
in the  judgment  of the  Board  of  Directors of  MidAmerican,  materially  and
adversely affect the shareholders of MidAmerican.
 
    This  Agreement  may  be  terminated  and  the  Share  Exchange  and related
transactions abandoned at any  time prior to the  time the Articles of  Exchange
are  filed  with the  Iowa  Secretary of  State, if  the  Board of  Directors of
MidAmerican determines, in its sole  discretion, that consummation of the  Share
Exchange  would be inadvisable or not in the best interest of MidAmerican or its
shareholders.
 
                                   ARTICLE VI
 
    This Agreement  has  been  submitted  to the  shareholder  of  Holdings  for
approval,  and  the  shareholder of  Holdings  has approved  this  Agreement, as
provided by the IBCA.
 
                                  ARTICLE VII
 
    Following the Effective Time, each  holder of an outstanding certificate  or
certificates  theretofore representing shares  of Company Common  Stock may, but
shall not be required  to, surrender the same  to Holdings for cancellation  and
reissuance  of a new  certificate or certificates  in such holder's  name or for
cancellation and transfer, and each such  holder or transferee will be  entitled
to  receive a certificate or certificates representing the same number of shares
of Holdings  Common Stock  as  the shares  of  Company Common  Stock  previously
represented by the certificate or certificates surrendered. Until so surrendered
or presented for transfer, each outstanding certificate which, immediately prior
to  the Effective  Time, represented  Company Common  Stock shall  be deemed and
treated for all corporate purposes to represent the ownership of the same number
of shares of  Holdings Common  Stock as though  such surrender  or transfer  had
taken  place. The holders  of Company Common  Stock at the  Effective Time shall
have no right to have  their shares of Company  Common Stock transferred on  the
stock  transfer books  of MidAmerican,  and such  stock transfer  books shall be
deemed to be closed for this purpose at the Effective Time.
 
                                      I-3
<PAGE>
    IN  WITNESS  WHEREOF,  each  of   MidAmerican  and  Holdings,  pursuant   to
authorization  and approval given  by their respective  Boards of Directors, has
caused  this  Agreement  to   be  executed  by   its  Chairman  and   President,
respectively, and attested by its Corporate Secretary as of the date first above
written.
 
                                          MIDAMERICAN ENERGY COMPANY
 
                                          By _____/s/ Russell E. Christiansen___
                                                  CHAIRMAN, OFFICE OF THE
                                                 CHIEF EXECUTIVE OFFICER
 
ATTEST
 
___________Paul J. Leighton___________
         CORPORATE SECRETARY
 
                                          MIDAMERICAN ENERGY HOLDINGS COMPANY
 
                                          By ________/s/ Stanley J. Bright______
                                                         PRESIDENT
 
ATTEST
 
___________Paul J. Leighton___________
         CORPORATE SECRETARY
 
                                      I-4
<PAGE>
                                                                        ANNEX II
 
                                    RESTATED
                           ARTICLES OF INCORPORATION
                                       OF
                      MIDAMERICAN ENERGY HOLDINGS COMPANY
 
TO THE SECRETARY OF STATE
OF THE STATE OF IOWA:
 
    Pursuant  to  the  provisions  of  Section  490.1007  of  the  Iowa Business
Corporation  Act,  the  undersigned  corporation  hereby  adopts  the  following
Restated Articles of Incorporation ("Articles of Incorporation"):
 
                                   ARTICLE I
 
    The  name  of  the  corporation  is  "MidAmerican  Energy  Holdings Company"
(hereinafter sometimes called the "Corporation") and its registered office shall
be located  at 666  Grand  Avenue, Des  Moines, Iowa  50303  with the  right  to
establish  and maintain branch  offices at such other  points within and without
the State of Iowa as the Board of Directors of the Corporation may, from time to
time, determine.  The  name  of  the  Corporation's  registered  agent  at  such
registered office is Paul J. Leighton, Vice President and Corporate Secretary.
 
                                   ARTICLE II
 
    The  nature of the  business or purposes  to be conducted  or promoted is to
engage in any  or all  lawful act  or activity for  which a  corporation may  be
incorporated under the Iowa Business Corporation Act.
 
                                  ARTICLE III
 
    A.    The  aggregate  number  of shares  which  the  Corporation  shall have
authority to issue is 350,000,000 shares of Common Stock, no par value  ("Common
Stock"),  and 100,000,000  shares of Preferred  Stock, no  par value ("Preferred
Stock").
 
    B.  The shares of authorized Common Stock shall be identical in all respects
and shall have equal  rights and privileges. For  all purposes, each  registered
holder  of Common Stock shall,  at each meeting of  shareholders, be entitled to
one vote for each share of Common Stock held, either in person or by proxy  duly
authorized  in writing. Except to the extent  required by law or as permitted by
these Articles of Incorporation,  as amended from time  to time, the  registered
holders  of the shares of Common Stock shall have unlimited and exclusive voting
rights.
 
    C.  The Board of Directors,  at any time or from  time to time, may, and  is
hereby  authorized to, issue and  dispose of any of  the authorized and unissued
shares of Common  Stock and  any treasury  shares for  such kind  and amount  of
consideration  and to such persons, firms  or corporations, as may be determined
by the Board of Directors, subject to any provisions of law then applicable. The
holders of Common Stock shall have no preemptive rights to acquire or  subscribe
to any shares, or securities convertible into shares, of Common Stock.
 
    D.   The Board of  Directors, at any time  or from time to  time may, and is
hereby authorized to,  divide the  authorized and unissued  shares of  Preferred
Stock  into one or more classes or series and in connection with the creation of
any class or series to determine, in whole or in part, to the full extent now or
hereafter permitted by law, by adopting one or more articles of amendment to the
Articles of Incorporation providing for  the creation thereof, the  designation,
preferences,  limitations and relative rights of such class or series, which may
provide  for   special,   conditional   or  limited   voting   rights,   or   no
 
                                      II-1
<PAGE>
rights  to vote at all, and  to issue and dispose of  any of such shares and any
treasury shares for such kind and  amount of consideration and to such  persons,
firms  or corporations, as may be determined  by the Board of Directors, subject
to any provisions of law then applicable.
 
    E.  The Board  of Directors, at any  time or from time  to time may, and  is
hereby  authorized to, create and  issue, whether or not  in connection with the
issuance and  sale of  any shares  of  Common Stock,  Preferred Stock  or  other
securities  of the  Corporation, warrants,  rights and/or  options entitling the
holders thereof to  purchase from the  Corporation any shares  of Common  Stock,
Preferred Stock or other securities of the Corporation. Such warrants, rights or
options  shall  be  evidenced by  such  instrument  or instruments  as  shall be
approved by the Board of Directors of the Corporation. The terms upon which, the
time or times  (which may  be limited  or unlimited  in duration)  at or  within
which,  and the price or prices (which shall be not less than the minimum amount
prescribed by law, if any) at which  any such shares or other securities may  be
purchased  from the Corporation upon the exercise  of any such warrant, right or
option shall be fixed and stated in  the resolution or resolutions of the  Board
of Directors providing for the creation and issuance of such warrants, rights or
options.  The Board of  Directors is hereby  authorized to create  and issue any
such warrants, rights or  options from time to  time for such consideration,  if
any,  and to such persons, firms or  corporations, as the Board of Directors may
determine.
 
    F.  The Corporation may authorize the issuance of some or all of the  shares
of any or all of the classes of its capital stock without certificates.
 
    G.  The Corporation shall not be required to issue certificates representing
any fraction or fractions of a share of stock of any class but may issue in lieu
thereof one or more  non-dividend bearing and  non-voting scrip certificates  in
such  form or forms as  shall be approved by the  Board of Directors, each scrip
certificate representing a  fractional interest  in one  share of  stock of  any
class.  Such scrip  certificates upon  presentation together  with similar scrip
certificates representing  in the  aggregate an  interest in  one or  more  full
shares of stock of any class shall entitle the holders thereof to receive one or
more  full shares of  stock of such  class. Such scrip  certificates may contain
such terms and conditions as  shall be fixed by the  Board of Directors and  may
become  void and of  no effect after a  period to be determined  by the Board of
Directors and to be specified in such scrip certificates.
 
    H. The Corporation shall be entitled to  treat the person in whose name  any
share  of Common Stock or Preferred Stock is registered as the owner thereof for
all purposes and shall not  be bound to recognize  any equitable or other  claim
to,  or interest in,  such share on the  part of any person,  whether or not the
Corporation shall  have  notice thereof  except  as may  be  expressly  provided
otherwise by the laws of the State of Iowa.
 
                                   ARTICLE IV
 
    The term of corporate existence of the Corporation shall be perpetual.
 
                                   ARTICLE V
 
    A.   All corporate powers  shall be exercised by  or under the authority of,
and the  business and  affairs of  the Corporation  shall be  managed under  the
direction of, the Board of Directors. The number of directors of the Corporation
shall  be fixed by the Bylaws but shall be  no less than ten (10) and no greater
than twenty-two (22), and such number may be increased or decreased from time to
time in accordance with  the Bylaws, but  no decrease shall  have the effect  of
shortening the term of any incumbent director. Directors shall be elected by the
shareholders  at each annual meeting of  the Corporation as specified herein and
in the Bylaws. Directors need not be shareholders.
 
    B.  Each  director shall serve  until his  or her successor  is elected  and
qualified  or until his or her  prior death, retirement, resignation or removal.
Should a vacancy occur or be created, whether arising through death, resignation
or removal of  a director or  through an  increase in the  number of  directors,
 
                                      II-2
<PAGE>
such  vacancy  shall  be filled  solely  by  a majority  vote  of  the remaining
directors though less than  a quorum of  the Board of  Directors. A director  so
elected to fill a vacancy shall serve for the remainder of the then present term
of office of the Board of Directors.
 
    C.   Any director or the entire Board  of Directors may be removed for cause
as set  forth in  this paragraph  C. Removal  of a  director for  cause must  be
approved  by the affirmative vote  of the holders of  shares of capital stock of
the Corporation having at least  75% of the votes  of all outstanding shares  of
capital  stock of the Corporation entitled to  vote generally in the election of
directors, voting together as a single class,  only at a meeting called for  the
purpose  of removing the director and after  notice stating that the purpose, or
one of the purposes, of the meeting  is removal of the director. Any action  for
removal of a director must be taken within one year of such cause.
 
    D.   The Board of Directors, by a vote  of a majority of the entire Board of
Directors, may appoint from the directors an executive committee and such  other
committees  as they may deem judicious; and  to such extent as shall be provided
in the resolution of the  Board of Directors or in  the Bylaws, may delegate  to
such  committees all or any of the powers of the Board of Directors which may be
lawfully delegated, and such  committees shall have  and thereupon may  exercise
all  or any of  the powers so delegated  to them. The Board  of Directors or the
Bylaws may provide the number of members necessary to constitute a quorum of any
committee and  the number  of  affirmative votes  necessary  for action  by  any
committee.
 
    E.   The Board of Directors shall  elect such officers of the Corporation as
specified in the Bylaws. All vacancies  in the offices of the Corporation  shall
be  filled by  the Board of  Directors. The  Board of Directors  shall also have
authority to appoint such other managing officers as they may from time to  time
determine.
 
                                   ARTICLE VI
 
    Special  meetings of  shareholders of the  Corporation may be  called at any
time by the Chairman of the Board of  Directors or by the President on at  least
ten days' notice to each shareholder entitled to vote at the special meeting, by
mail  at such shareholder's last known post office address, specifying the time,
place and purpose or purposes of the special meeting.
 
                                  ARTICLE VII
 
    The private property of the shareholders of the Corporation shall be  exempt
from all corporate debts.
 
                                  ARTICLE VIII
 
    A.   In addition to any affirmative vote  required by law or under any other
provision of these Articles of Incorporation:
 
        (i) any merger or consolidation of the Corporation or any Subsidiary (as
    hereinafter defined) with or into any Other Entity (as hereinafter defined);
    or
 
        (ii) any  sale, lease,  exchange, mortgage,  pledge, transfer  or  other
    disposition  (in one transaction or a  series of related transactions) to or
    with any Other  Entity of any  assets of the  Corporation or any  Subsidiary
    having   an  aggregate  Fair  Market   Value  (as  hereinafter  defined)  of
    $25,000,000 or more; or
 
       (iii) the issuance or transfer by  the Corporation or any Subsidiary  (in
    one  transaction or a  series of related transactions)  of any securities of
    the Corporation or any Subsidiary to any Other Entity in exchange for  cash,
    securities  or other property (or a combination thereof) having an aggregate
    Fair Market Value of $25,000,000 or more; or
 
                                      II-3
<PAGE>
       (iv) the  adoption  of  any  plan or  proposal  for  the  liquidation  or
    dissolution of the Corporation; or
 
        (v)  any  reclassification of  securities  (including any  reverse stock
    split), recapitalization,  reorganization, merger  or consolidation  of  the
    Corporation with any of its Subsidiaries or any similar transaction (whether
    or  not with or into or otherwise  involving any Other Entity) which has the
    effect, directly or indirectly, of increasing the proportionate share of the
    outstanding shares of any class of  equity or convertible securities of  the
    Corporation  or any Subsidiary which is  directly or indirectly owned by any
    Other Entity; or
 
       (vi) any  direct  or  indirect  purchase  or  other  acquisition  by  the
    Corporation of any equity security (as defined in Rule 3a11-1 of the General
    Rules  and  Regulations under  the Securities  Exchange Act  of 1934,  as in
    effect on June 30, 1995) of any class from an Interested Securityholder  (as
    hereinafter  defined) who  has beneficially  owned such  securities for less
    than two  years prior  to the  date of  such purchase  or any  agreement  in
    respect thereof,
 
shall  require the affirmative vote of the holders of shares of capital stock of
the Corporation having at least 75% (excluding,  in the case of (i) through  (v)
above,  shares beneficially owned by a 25% Shareholder (as hereinafter defined),
and, in the  case of (vi)  above, shares beneficially  owned by such  Interested
Securityholder)  of the votes of all outstanding  shares of capital stock of the
Corporation entitled to vote generally in the election of directors,  considered
for  the  purpose of  this Article  VIII  as one  class ("Voting  Shares"). Such
affirmative vote shall be required notwithstanding the fact that no vote may  be
required, or that some lesser percentage vote may be specified, by law or in any
agreement with any national securities exchange or otherwise.
 
    B.    The  provisions of  paragraph  A of  this  Article VIII  shall  not be
applicable to any particular Business Combination (as hereinafter defined),  and
such  Business  Combination  shall  require only  such  affirmative  vote  as is
required by law and any other  provision of these Articles of Incorporation,  if
all of the conditions specified in either of the following subparagraphs 1 and 2
shall have been satisfied.
 
        1.   A  majority of  the Continuing  Directors (as  hereinafter defined)
    shall have approved the Business Combination (but only if a majority of  the
    Board of Directors are Continuing Directors); or
 
        2.  All of the following conditions shall have been met:
 
           a.  The ratio of:
 
               (i) the aggregate amount of the cash and the Fair Market Value as
           of  the date  of consummation  of the  Business Combination  of other
           consideration to be  received per  share by holders  of a  particular
           class or series of Voting Shares in such Business Combination
 
           to
 
               (ii)  the Fair Market Value per share  of such class or series of
           Voting Shares on the  date of the first  public announcement of  such
           Business  Combination or the date on which any 25% Shareholder became
           a 25% Shareholder, whichever is higher
 
     is at least as great as the  ratio (which ratio shall equal the number  one
     in  the event  that such 25%  Shareholder has never  beneficially owned any
     shares of such class or series of Voting Shares) of
 
                                      II-4
<PAGE>
               (x) the highest per share price (including brokerage commissions,
           transfer  taxes  and  soliciting   dealers'  fees)  which  such   25%
           Shareholder  has  theretofore paid  for any  share  of such  class or
           series of Voting Shares acquired by it
 
           to
 
               (y) the Fair Market  Value per share of  such class or series  of
           Voting  Shares on  the date  of the  initial acquisition  by such 25%
           Shareholder of any share of such class or series of Voting Shares;
 
           b.  The aggregate amount of the cash and Fair Market Value as of  the
       date  of consummation of the  Business Combination of other consideration
       to be received per share by holders of each class or series of  Preferred
       Stock  in  such  Business  Combination  is  not  less  than  the  highest
       preferential amount per share to which holders of shares of such class or
       series of Preferred Stock would,  respectively, be entitled in the  event
       of any voluntary or involuntary liquidation, dissolution or winding up of
       the  Corporation, regardless  of whether  the Business  Combination to be
       consummated constitutes such an event;
 
           c.  The consideration to be received by holders of a particular class
       or series of Voting Shares in such Business Combination shall be in  cash
       or in the same form and of the same kind as the consideration paid by the
       25% Shareholder in acquiring the shares of such class or series of Voting
       Shares already owned by it;
 
           d.   After  such 25% Shareholder  has acquired ownership  of not less
       than 25% of  the then outstanding  Voting Shares (a  "25% Interest")  and
       prior to the consummation of such Business Combination:
 
               (i) the 25% Shareholder shall have taken steps to ensure that the
           Corporation's Board of Directors includes at all times representation
           by  Continuing Director(s) proportionate to the ratio that the Voting
           Shares which from time to time are  owned by persons who are not  25%
           Shareholders ("Public Holders") bear to all Voting Shares outstanding
           at  such respective times  (with a Continuing  Director to occupy any
           resulting fractional board position);
 
               (ii)  there  shall  have  been  no  reduction  in  the  rate   of
           distributions ("Dividends") payable on the Common Stock except as may
           have been approved by a majority vote of the Continuing Directors;
 
              (iii)  such  25% Shareholder  shall  not have  acquired  any newly
           issued shares of stock, directly or indirectly, from the  Corporation
           (except  upon  conversion of  convertible  securities acquired  by it
           prior to obtaining a 25% Interest or as a result of a pro rata  stock
           Dividend or stock split); and
 
              (iv)  such 25% Shareholder shall  not have acquired any additional
           Voting Shares  or securities  convertible  into or  exchangeable  for
           Voting  Shares except as a part  of the transaction which resulted in
           such 25% Shareholder acquiring its 25% Interest;
 
           e.  Prior to or upon  the consummation of such Business  Combination,
       such 25% Shareholder shall not have (i) received the benefit, directly or
       indirectly  (except  proportionately  as a  shareholder),  of  any loans,
       advances, guarantees,  pledges  or  other  financial  assistance  or  tax
       credits provided by the Corporation, or (ii) made any major change in the
       Corporation's  business or equity capital structure without the unanimous
       approval of the entire Board of Directors; and
 
           f.    A  proxy  statement  responsive  to  the  requirements  of  the
       Securities  Exchange Act  of 1934 and  the General  Rules and Regulations
       promulgated thereunder shall have  been mailed to  all holders of  Voting
       Shares  for  the purpose  of  soliciting shareholders'  approval  of such
 
                                      II-5
<PAGE>
       Business Combination. Such  proxy statement  shall contain  at the  front
       thereof  in a prominent place, any recommendations as to the advisability
       (or inadvisability)  of the  Business  Combination which  the  Continuing
       Directors,  or any of them, may have  furnished in writing and, if deemed
       advisable by a  majority of  the Continuing  Directors, an  opinion of  a
       reputable  investment  banking  firm  as  to  the  fairness  (or  lack of
       fairness) of the  terms of  such Business Combination,  from a  financial
       point  of  view, to  the  holders of  Voting  Shares other  than  any 25%
       Shareholder (such investment banking firm to be selected by a majority of
       the Continuing  Directors,  to  be  furnished  with  all  information  it
       reasonably requests and to be paid a reasonable fee for its services upon
       receipt by the Corporation of such opinion).
 
    C.  For the purposes of this Article VIII:
 
         1.  The term "Business Combination" shall mean any transaction which is
    referred to in any one or more of clauses (i) through (v) of paragraph A  of
    this Article VIII;
 
         2.  The term "Other  Entity" shall include (a)  any 25% Shareholder and
    (b) any other person (whether or  not itself a 25% Shareholder) which  after
    any  Business Combination, would be an Affiliate (as hereinafter defined) of
    any 25% Shareholder;
 
         3.  The  term  "person"  shall   mean  any  individual,  firm,   trust,
    partnership, association, corporation or other entity;
 
         4.  The term "25%  Shareholder" shall mean, in  respect to any Business
    Combination, any person (other than  the Corporation or any Subsidiary)  who
    or  which,  as of  the  record date  for  the determination  of shareholders
    entitled to  notice  of  and  to  vote  on  such  Business  Combination,  or
    immediately prior to the consummation of any such transactions,
 
           (a) is the beneficial owner, directly or indirectly, of not less than
       25% of the Voting Shares, or
 
           (b)  is an Affiliate of  the Corporation and at  any time within five
       years prior thereto was the beneficial owner, directly or indirectly,  of
       not less than 25% of the then outstanding Voting Shares, or
 
           (c)  is an assignee  of or has  otherwise succeeded to  any shares of
       capital stock of the Corporation which were at any time within five years
       prior thereto  beneficially  owned  by  any  25%  Shareholder,  and  such
       assignment  or  succession  shall  have  occurred  in  the  course  of  a
       transaction or series  of transactions  not involving  a public  offering
       within the meaning of the Securities Act of 1933;
 
        5.  A person shall be the beneficial owner of any Voting Shares
 
           (a)  which such  person or any  of its Affiliates  and Associates (as
       hereinafter defined) beneficially own, directly or indirectly, or
 
           (b) which such person or any of its Affiliates or Associates has  (i)
       the  right to acquire  (whether such right  is exercisable immediately or
       only after the passage of  time), pursuant to any agreement,  arrangement
       or  understanding  or upon  the exercise  of conversion  rights, exchange
       rights, warrants or  options, or  otherwise, or  (ii) the  right to  vote
       pursuant to any agreement, arrangement or understanding, or
 
           (c)  which  are beneficially  owned, directly  or indirectly,  by any
       other person  with  which such  first  mentioned  person or  any  of  its
       Affiliates  or Associates has any agreement, arrangement or understanding
       for the purpose of acquiring, holding, voting or disposing of any  shares
       of capital stock of the Corporation;
 
                                      II-6
<PAGE>
         6.  The  outstanding Voting  Shares shall  include shares  deemed owned
    through application of subparagraph  5 of this paragraph  C above but  shall
    not  include any other Voting  Shares which may be  issuable pursuant to any
    agreement or upon  exercise of  conversion rights, warrants  or options,  or
    otherwise;
 
         7.  The term "Continuing  Director" shall mean  (a) a person  who was a
    member of the Board of Directors elected by the Public Holders prior to  the
    date  as of which any 25% Shareholder acquired  in excess of 10% of the then
    outstanding Voting Shares  or (b)  a person  designated (before  his or  her
    initial  election as a director)  as a Continuing Director  by a majority of
    the then Continuing Directors;
 
         8. The term "other consideration to be received" shall include, without
    limitation, Voting  Shares retained  by Public  Holders in  the event  of  a
    Business Combination in which the Corporation is the surviving corporation;
 
         9.  The  terms "Affiliate"  and "Associate"  shall have  the respective
    meanings  given  those  terms  in  Rule  12b-2  of  the  General  Rules  and
    Regulations  under the Securities Exchange Act of 1934, as in effect on June
    30, 1995;
 
        10. The term "Subsidiary" shall mean any corporation or other entity  of
    which  a  majority  of the  outstanding  voting securities  or  other equity
    interests having  the  power,  under  ordinary  circumstances,  to  elect  a
    majority  of  the  directors  or  otherwise  to  direct  the  management and
    policies, of  such  corporation  or  other entity,  is  owned,  directly  or
    indirectly, by the Corporation;
 
        11. The term "Interested Securityholder" shall mean, with respect to any
    transaction  which is  referred to  in Clause  (vi) of  paragraph A  of this
    Article VIII, any person (other than the Corporation or any Subsidiary)  who
    or  which,  as of  the  record date  for  the determination  of shareholders
    entitled to notice of and to vote on such transaction, or immediately  prior
    to the consummation of any such transaction,
 
           (a) is the beneficial owner, directly or indirectly, of not less than
       five percent of the Voting Shares, or
 
           (b)  is an Affiliate  of the Corporation  and at any  time within two
       years prior thereto was the beneficial owner, directly or indirectly,  of
       not less than five percent of the then outstanding Voting Shares, or
 
           (c) is an assignee of or has otherwise succeeded to any shares of the
       class  of securities  to be  acquired which were  at any  time within two
       years prior thereto beneficially  owned by an Interested  Securityholder,
       and  such assignment or succession shall have occurred in the course of a
       transaction or series  of transactions  not involving  a public  offering
       within the meaning of the Securities Act of 1933; and
 
        12.  The term "Fair Market Value" shall  mean (i) in the case of capital
    stock, the highest closing sale  price during the 30-day period  immediately
    preceding  the date  in question  of a  share of  such capital  stock on the
    Composite Tape  for  New York  Stock  Exchange-Listed Stocks,  or,  if  such
    capital  stock is not  quoted on the  Composite Tape, on  the New York Stock
    Exchange, or, if such capital stock is  not listed on such exchange, on  the
    principal  United States securities exchange registered under the Securities
    Exchange Act of  1934 on which  such capital  stock is listed,  or, if  such
    capital  stock is not listed  on any such exchange,  the highest closing bid
    quotation with respect to  a share of such  capital stock during the  30-day
    period  preceding  the  date  in question  on  the  National  Association of
    Securities Dealers, Inc. Automated Quotations  System or any system then  in
    use,  or if no  such quotations are  available the fair  market value on the
    date in  question of  a  share of  such capital  stock  as determined  by  a
    majority  of the Continuing Directors in good faith; and (ii) in the case of
    property  other  than  cash  or   capital  stock,  the  fair  market   value
 
                                      II-7
<PAGE>
    of  such property on the  date in question as determined  in good faith by a
    majority of the Continuing Directors;  provided that any such  determination
    by  the Continuing Directors shall only be effective if made at a meeting at
    which a majority of Continuing Directors is present.
 
    D.  A majority of the Continuing Directors shall have the power and duty  to
determine  for purposes of this Article VIII,  on the basis of information known
to them, (i) the number of Voting Shares beneficially owned by any person,  (ii)
whether a person is an Affiliate or Associate of another, (iii) whether a person
has  an agreement, arrangement  or understanding with another  as to the matters
referred to in subparagraph 4 of paragraph C, (iv) whether the assets subject to
any Business Combination have an aggregate  Fair Market Value of $25,000,000  or
more,  and  (v) such  other matters  with  respect to  which a  determination is
required under this Article VIII.
 
    E.  Nothing contained in this Article VIII shall be construed to relieve any
25% Shareholder from any fiduciary obligation imposed by law.
 
                                   ARTICLE IX
 
    Any amendment,  alteration, change  or  repeal of  Article  VA, VB  and  VC,
Article VIII or this Article IX of these Articles of Incorporation shall require
the  affirmative  vote  of  the  holders  of  shares  of  capital  stock  of the
Corporation having at least  75% of the votes  of all outstanding Voting  Shares
(as  defined  in  Article VIII),  excluding  from such  affirmative  vote shares
beneficially owned by any 25% Shareholder or by any Interested Securityholder in
the case of an amendment of the  provisions of paragraph A of Article VIII  that
exclude  from an affirmative  vote required pursuant to  such paragraph A shares
beneficially  owned  by  25%  Shareholders  or  shares  beneficially  owned   by
Interested Securityholders, as the case may be.
 
                                   ARTICLE X
 
    The  Board of  Directors may make  Bylaws and  from time to  time may alter,
amend or repeal any Bylaws; but any Bylaws made by the Board of Directors may be
altered or repealed by the shareholders entitled to vote generally at any annual
meeting or at any special meeting provided notice of such proposed alteration or
repeal be included in the notice of meeting.
 
                                   ARTICLE XI
 
    A.  A  director of the  Corporation shall  not be personally  liable to  the
Corporation  or its  shareholders for monetary  damages for  breach of fiduciary
duty as a director, except for liability:
 
        (i) for any breach of the director's duty of loyalty to the  Corporation
    or its shareholders; or
 
        (ii)  for  acts  or  omissions  not  in  good  faith  or  which  involve
    intentional misconduct or a knowing violation of law; or
 
       (iii) for any  transaction from  which the director  derives an  improper
    personal benefit; or
 
       (iv)  under  Section  490.833,  or a  successor  provision,  of  the Iowa
    Business Corporation Act.
 
    B.  If, after the  date these Articles of  Incorporation are filed with  the
Secretary  of State of the  State of Iowa, the  Iowa Business Corporation Act is
amended to  authorize  corporate  action further  eliminating  or  limiting  the
personal  liability  of  directors, then  the  liability  of a  director  of the
Corporation shall  be  deemed  eliminated  or  limited  to  the  fullest  extent
permitted  by the Iowa  Business Corporation Act,  as so amended.  Any repeal or
modification of Section A or Section B  of this Article XI, by the  shareholders
of  the Corporation shall be prospective only and shall not adversely affect any
right or protection of  a director of  the Corporation existing  at the time  of
such repeal or modification.
 
                                      II-8
<PAGE>
                                  ARTICLE XII
 
    A.  Each person who was or is a party or is threatened to be made a party to
or  is  involved in  any action,  suit or  proceeding, whether  civil, criminal,
administrative, investigative,  or arbitration  and whether  formal or  informal
("proceeding"), by reasons of the fact that he or she, or a person of whom he or
she  is the legal representative,  is or was a  director, officer or employee of
the Corporation or  is or was  serving at the  request of the  Corporation as  a
director,  officer or employee of another corporation or of a partnership, joint
venture, trust or other enterprise,  including service with respect to  employee
benefit  plans, whether  the basis  of such proceeding  is alleged  action in an
official capacity while  serving as a  director, officer or  employee or in  any
other  capacity  while serving  as  a director,  officer  or employee,  shall be
indemnified  and  held  harmless  by  the  Corporation  to  the  fullest  extent
authorized  by the  Iowa Business  Corporation Act,  as the  same exists  or may
hereafter be amended (but, in the case of any such amendment, only to the extent
that such amendment permits the  Corporation to provide broader  indemnification
rights  than  the Iowa  Business Corporation  Act  permitted the  Corporation to
provide prior to such amendment), against all reasonable expenses, liability and
loss (including,  without limitation,  attorneys'  fees, all  costs,  judgments,
fines,  Employee Retirement  Income Security Act  excise taxes  or penalties and
amounts paid or  to be paid  in settlement) reasonably  incurred or suffered  by
such  person in connection therewith.  Such right shall be  a contract right and
shall include  the right  to be  paid by  the Corporation  expenses incurred  in
defending  any such  proceeding in advance  of its  final disposition; provided,
however, that the payment  of such expenses incurred  by a director, officer  or
employee  in his or her capacity as a  director, officer or employee (and not in
any other capacity in which  service was or is rendered  by such person while  a
director,  officer  or employee  including,  without limitation,  service  to an
employee benefit plan) in advance of  the final disposition of such  proceeding,
shall  be  made  only  upon  delivery  to  the  Corporation  of  (i)  a  written
undertaking, by or on behalf of such director, officer or employee, to repay all
amounts so advanced if  it should be determined  ultimately that such  director,
officer  or employee is not entitled to be indemnified under this Article XII or
otherwise, or  (ii) a  written affirmation  by or  on behalf  of such  director,
officer  or employee that, in  such person's good faith  belief, such person has
met the standards of conduct set forth in the Iowa Business Corporation Act.
 
    B.  If a claim under Section A is not paid in full by the Corporation within
thirty (30) days after a written claim has been received by the Corporation, the
claimant may  at any  time  thereafter bring  suit  against the  Corporation  to
recover  the unpaid amount of the claim and,  if successful in whole or in part,
the claimant shall be entitled to also be paid the expenses of prosecuting  such
claim.  It shall be a defense  to any such action that  the claimant has not met
the standards  of conduct  which make  it permissible  under the  Iowa  Business
Corporation  Act for  the Corporation to  indemnify the claimant  for the amount
claimed, but the burden of proving such defense shall be on the Corporation. The
failure of the Corporation (including its Board of Directors, independent  legal
counsel  or  its  shareholders)  to  have  made  a  determination  prior  to the
commencement of such action  that indemnification of the  claimant is proper  in
the  circumstances because he or she has  met the applicable standard of conduct
set forth in the Iowa  Business Corporation Act, shall not  be a defense to  the
action  or create  a presumption  that the claimant  had not  met the applicable
standard of conduct.
 
    C.  Indemnification provided  hereunder shall, in the  case of the death  of
the  person entitled to  indemnification, inure to the  benefit of such person's
heirs,  executors   or  other   lawful   representatives.  The   invalidity   or
unenforceability  of  any provision  of this  Article XII  shall not  affect the
validity or enforceability of any other provision of this Article XII.
 
    D.  Any action taken or omitted to be taken by (i) any director, officer  or
employee  in  good  faith and  in  compliance  with or  pursuant  to  any order,
determination, approval  or permission  made or  given by  a commission,  board,
official  or  other  agency  of the  United  States  or of  any  state  or other
governmental  authority  with  respect  to  the  property  or  affairs  of   the
Corporation  or any such business corporation, not-for-profit corporation, joint
venture, trade association or  other entity over  which such commission,  board,
official   or  agency  has  jurisdiction  or   authority  or  purports  to  have
jurisdiction or authority or (ii) by any director of the Corporation pursuant to
Section D of Article VIII shall be
 
                                      II-9
<PAGE>
presumed to be in compliance with the  standard of conduct set forth in  Section
490.851  (or  any  successor provision)  of  the Iowa  Business  Corporation Act
whether or not, in the case of clause (i), it may thereafter be determined  that
such  order, determination, approval or  permission was unauthorized, erroneous,
unlawful or otherwise improper.
 
    E.  Unless finally determined, the termination of any litigation, whether by
judgment, settlement,  conviction or  upon a  plea of  NOLO CONTENDERE,  or  its
equivalent,  shall not create a presumption that  the action taken or omitted to
be taken by the person seeking indemnification did not comply with the  standard
of conduct set forth in Section 490.851 (or any successor provision) of the Iowa
Business Corporation Act.
 
    F.   The  rights conferred on  any person by  this Article XII  shall not be
exclusive of any  other right  which any person  may have  or hereafter  acquire
under   any  statute,  provision  of  the  Articles  of  Incorporation,  Bylaws,
agreement, vote of shareholders or disinterested directors or otherwise.
 
    G. The Corporation may maintain insurance, at its expense, to protect itself
and any  such  director, officer  or  employee  of the  Corporation  or  another
corporation,  partnership, joint venture, trust  or other enterprise against any
such expense, liability or loss, whether  or not the Corporation would have  the
power to indemnify such person against such expense, liability or loss under the
Iowa Business Corporation Act.
 
                                     II-10
<PAGE>
                                                                       EXHIBIT B
 
                              ARTICLES OF EXCHANGE
                                       OF
                      MIDAMERICAN ENERGY HOLDINGS COMPANY
 
TO THE SECRETARY OF STATE OF THE STATE OF IOWA:
 
    Pursuant  to  Section  1105  of  the  Iowa  Business  Corporation  Act,  the
undersigned corporation hereby adopts the following Articles of Exchange:
 
1.  The Agreement and Plan of Exchange is attached hereto as Exhibit "A."
 
2.  The designation, number of outstanding shares, and number of votes  entitled
    to  be cast by each voting group entitled  to vote separately on the plan as
    to each corporation is a follows:
 
    MidAmerican Energy Company
 
<TABLE>
<CAPTION>
                                                                                  VOTES ENTITLED
                                                                                  TO BE CAST ON
        DESIGNATION GROUP                   SHARES OUTSTANDING                    SHARE EXCHANGE
- ----------------------------------  ----------------------------------  ----------------------------------
<S>                                 <C>                                 <C>
              Common                           100,751,713                         100,751,713
</TABLE>
 
    MidAmerican Energy Holdings Company
 
<TABLE>
<CAPTION>
                                                                                  VOTES ENTITLED
                                                                                  TO BE CAST ON
        DESIGNATION GROUP                   SHARES OUTSTANDING                    SHARE EXCHANGE
- ----------------------------------  ----------------------------------  ----------------------------------
<S>                                 <C>                                 <C>
              Common                              1,000                               1,000
</TABLE>
 
2a. The total number of votes cast for and against the plan by each voting group
    entitled to vote separately on the plan is as follows:
    MidAmerican Energy Company
 
<TABLE>
<CAPTION>
           VOTING GROUP                         VOTES FOR                         VOTES AGAINST
- ----------------------------------  ----------------------------------  ----------------------------------
<S>                                 <C>                                 <C>
              Common
</TABLE>
 
    MidAmerican Energy Holdings Company
 
<TABLE>
<CAPTION>
           VOTING GROUP                         VOTES FOR                         VOTES AGAINST
- ----------------------------------  ----------------------------------  ----------------------------------
<S>                                 <C>                                 <C>
              Common
</TABLE>
 
    The number of  votes cast for  the Agreement  and Plan of  Exchange by  each
voting group was sufficient for approval by that voting group.
 
    These  Articles  of  Exchange are  to  become  effective when  filed  by the
Secretary of State.
 
                                   MIDAMERICAN ENERGY HOLDINGS COMPANY
 
                                   ---------------------------------------------
                                   Paul J. Leighton, CORPORATE SECRETARY
 
                                      B-1
<PAGE>
                                                                       ANNEX III
 
                         IOWA BUSINESS CORPORATION ACT
                         DISSENTERS' RIGHTS PROVISIONS
                                 DIVISION XIII
                               DISSENTERS' RIGHTS
                                     PART A
 
490.1301 DEFINITIONS FOR DIVISION XIII.
 
    In this division:
 
    1.   "Beneficial shareholders" means the person who is a beneficial owner of
shares held by a nominee as the record shareholder.
 
    2.  "Corporation" means the issuer of the shares held by a dissenter  before
the  corporate action,  or the surviving  or acquiring corporation  by merger or
share exchange of that issuer.
 
    3.   "Dissenter"  means  a  shareholder who  is  entitled  to  dissent  from
corporate action under section 490.1302 and who exercises that right when and in
the manner required by sections 490.1320 through 490.1328.
 
    4.   "Fair Value", with respect to  a dissenter's shares, means the value of
the shares immediately before the effectuation of the corporate action to  which
the   dissenter  objects,   excluding  any   appreciation  or   depreciation  in
anticipation of the corporate action unless exclusion would be inequitable.
 
    5.   "Interest" means  interest from  the effective  date of  the  corporate
action  until the  date of payment,  at the  average rate currently  paid by the
corporation on its principal bank loans or, if none, at a rate that is fair  and
equitable under all the circumstances.
 
    6.    "Record  shareholder"  means  the  person  in  whose  name  shares are
registered in the records of a corporation or the beneficial owner of shares  to
the  extent  of the  rights  granted by  a nominee  certificate  on file  with a
corporation.
 
    7.    "Shareholder"   means  the  record   shareholder  or  the   beneficial
shareholder.
 
490.1302 SHAREHOLDERS' RIGHT TO DISSENT.
 
    1.   A shareholder  is entitled to  dissent from, and  obtain payment of the
fair value of the  shareholder's shares in  the event of,  any of the  following
corporate actions:
 
        a.  Consummation of a plan of merger to which the corporation is a party
    if either of the following apply:
 
           (1)  Shareholder  approval  is  required for  the  merger  by section
       490.1103 or the articles of incorporation and the shareholder is entitled
       to vote on the merger.
 
           (2) The corporation is  a subsidiary that is  merged with its  parent
       under section 490.1104.
 
        b.  Consummation of a plan of share exchange to which the corporation is
    a party as the corporation whose shares will be acquired, if the shareholder
    is entitled to vote on the plan.
 
        c.   Consummation of a sale or exchange of all, or substantially all, of
    the property of the corporation other  than in the usual and regular  course
    of business, if the shareholder is entitled to vote on the sale or exchange,
    including  a sale in dissolution, but not including a sale pursuant to court
    order or a sale for  cash pursuant to a plan  by which all or  substantially
    all  of the net proceeds of the sale will be distributed to the shareholders
    within one year after the date of sale.
 
                                     III-1
<PAGE>
        d.  An amendment  of the articles of  incorporation that materially  and
    adversely  affects rights in respect of a dissenter's shares because it does
    any or all of the following:
 
           (1) Alters or abolishes a preferential right of the shares.
 
           (2) Creates, alters, or abolishes  a right in respect of  redemption,
       including  a provision  respecting a sinking  fund for  the redemption or
       repurchase, of the shares.
 
           (3) Alters  or abolishes  a preemptive  right of  the holder  of  the
       shares to acquire shares or other securities.
 
           (4) Excludes or limits the right of the shares to vote on any matter,
       or  to  cumulate  votes,  other than  a  limitation  by  dilution through
       issuance of shares or other securities with similar voting rights.
 
           (5) Reduces  the number  of  shares owned  by  the shareholder  to  a
       fraction  of a share if the fractional share so created is to be acquired
       for cash under section 490.604.
 
           (6) Extends, for the first time after being governed by this chapter,
       the period of duration  of a corporation organized  under chapter 491  or
       496A and existing for a period of years on the day preceding the date the
       corporation is first governed by this chapter.
 
        e.   Any corporate  action taken pursuant  to a shareholder  vote to the
    extent the articles of incorporation, bylaws,  or a resolution of the  board
    of  directors provides that voting or nonvoting shareholders are entitled to
    dissent and obtain payment for their shares.
 
    2.    A  shareholder  entitled  to  dissent  and  obtain  payment  for   the
shareholder's  shares  under  this  chapter is  not  entitled  to  challenge the
corporate action creating  the shareholder's  entitlement unless  the action  is
unlawful or fraudulent with respect to the shareholder or the corporation.
 
490.1303 DISSENT BY NOMINEES AND BENEFICIAL OWNERS.
 
    1.   A record shareholder may assert dissenters' rights as to fewer than all
the shares  registered  in  that  shareholder's name  only  if  the  shareholder
dissents  with respect to  all shares beneficially  owned by any  one person and
notifies the corporation in writing  of the name and  address of each person  on
whose behalf the shareholder asserts dissenters' rights. The rights of a partial
dissenter  under this subsection are determined as if the shares as to which the
shareholder dissents and the shareholder's  other shares were registered in  the
names of different shareholders.
 
    2.  A beneficial shareholder may assert dissenters' rights as to shares held
on the shareholder's behalf only if the shareholder does both of the following:
 
        a.   Submits to the corporation the record shareholder's written consent
    to the dissent not  later than the time  the beneficial shareholder  asserts
    dissenters' rights.
 
        b.   Does so with respect to all  shares of which the shareholder is the
    beneficial shareholder or over which  that beneficial shareholder has  power
    to direct the vote.
 
                                     PART B
 
490.1320 NOTICE OF DISSENTERS' RIGHTS.
 
    1.   If proposed corporate action  creating dissenters' rights under section
490.1302 is submitted to a vote  at a shareholders' meeting, the meeting  notice
must state that shareholders are or may be entitled to assert dissenters' rights
under this part and be accompanied by a copy of this part.
 
    2.   If corporate action creating  dissenters' rights under section 490.1302
is taken without a vote of shareholders, the corporation shall notify in writing
all shareholders entitled to assert dissenters' rights that the action was taken
and send them the dissenters' notice described in section 490.1322
 
                                     III-2
<PAGE>
490.1321 NOTICE OF INTENT TO DEMAND PAYMENT.
 
    1.  If proposed corporate  action creating dissenters' rights under  section
490.1302  is submitted to a  vote at a shareholders'  meeting, a shareholder who
wishes to assert dissenters' rights must do all of the following;
 
        a.  Deliver to the corporation  before the vote is taken written  notice
    of  the shareholder's intent to demand  payment for the shareholder's shares
    if the proposed action is effectuated.
 
        b.   Not  vote the  dissenting  shareholder's  shares in  favor  of  the
    proposed action.
 
    2.   A shareholder who does not satisfy the requirements of subsection 1, is
not entitled to payment for the shareholder's shares under this part.
 
490.1322 DISSENTERS' NOTICE.
 
    1.  If proposed corporate  action creating dissenters' rights under  section
490.1302 is authorized at a shareholders' meeting, the corporation shall deliver
a  written dissenters' notice to all shareholders who satisfied the requirements
of section 490.1321.
 
    2.  The dissenters'  notice must be  sent no later than  ten days after  the
proposed  corporate action is authorized at  a shareholders' meeting, or, if the
corporate action is taken without a vote of the shareholders, no later than  ten
days after the corporate action is taken, and must do all of the following:
 
        a.   State  where the  payment demand  must be  sent and  where and when
    certificates for certificated shares must be deposited.
 
        b.  Inform holders of uncertificated  shares to what extent transfer  of
    the shares will be restricted after the payment demand is received.
 
        c.   Supply a form  for demanding payment that  includes the date of the
    first announcement to  news media  or to shareholders  of the  terms of  the
    proposed corporate action and requires that the person asserting dissenters'
    rights  certify whether or  not the person  acquired beneficial ownership of
    the shares before that date.
 
        d.  Set a date by which the corporation must receive the payment demand,
    which date shall not be fewer than thirty nor more than sixty days after the
    date the dissenters' notice is delivered
 
        e.  Be accompanied by a copy of this division.
 
490.1323 DUTY TO DEMAND PAYMENT.
 
    1.  A shareholder  sent a dissenters' notice  described in section  490.1322
must  demand  payment,  certify  whether  the  shareholder  acquired  beneficial
ownership of  the  shares before  the  date required  to  be set  forth  in  the
dissenter's  notice pursuant to  section 490.1322, subsection  2, paragraph "c,"
and deposit the shareholder's certificates in  accordance with the terms of  the
notice.
 
    2.    The shareholder  who demands  payment  and deposits  the shareholder's
shares under subsection 1 retains all other rights of a shareholder until  these
rights are canceled or modified by the taking of the proposed corporate action.
 
    3.   A shareholder who does not  demand payment or deposit the shareholder's
share certificates  where required,  each by  the date  set in  the  dissenters'
notice,  is  not entitled  to payment  for the  shareholder's shares  under this
division.
 
490.1324 SHARE RESTRICTIONS.
 
    1.  The corporation may restrict the transfer of uncertificated shares  from
the  date the demand for their payment  is received until the proposed corporate
action is taken or the restrictions released under section 490.1326
 
                                     III-3
<PAGE>
    2.  The person for whom dissenters' rights are asserted as to uncertificated
shares retains all other rights of a shareholder until these rights are canceled
or modified by the taking of the proposed corporate action.
 
490.1325 PAYMENT.
 
    1.   Except  as provided  in  section 490.1327,  at  the time  the  proposed
corporate action is taken, or upon receipt of a payment demand, whichever occurs
later,  the  corporation  shall pay  each  dissenter who  complied  with section
490.1323 the  amount the  corporation estimates  to  be the  fair value  of  the
dissenter's shares, plus accrued interest.
 
    2.  The payment must be accompanied by all of the following:
 
        a.   The  corporation's balance  sheet as  of the  end of  a fiscal year
    ending not more than  sixteen months before the  date of payment, an  income
    statement  for that year, a statement of changes in shareholders' equity for
    that year, and the latest available interim financial statements, if any.
 
        b.  A statement of the corporation's  estimate of the fair value of  the
    shares.
 
        c.  An explanation of how the interest was calculated.
 
        d.  A statement of the dissenter's right to demand payment under section
    490.1328.
 
        e.  A copy of this division.
 
490.1326 FAILURE TO TAKE ACTION.
 
    1.   If the corporation does not  take the proposed action within sixty days
after the date set for demanding payment and depositing share certificates,  the
corporation  shall return  the deposited  certificates and  release the transfer
restrictions imposed on uncertificated shares.
 
    2.   If  after  returning  deposited  certificates  and  releasing  transfer
restrictions,  the corporation  takes the  proposed action,  it must  send a new
dissenters' notice under section 490.1322 as  if the corporate action was  taken
without a vote of the shareholders and repeat the payment demand procedure.
 
493B.1327 AFTER-ACQUIRED SHARES.
 
    1.  A corporation may elect to withhold payment required by section 490.1325
from  a dissenter unless  the dissenter was  the beneficial owner  of the shares
before the date set  forth in the  dissenters' notice as the  date of the  first
announcement  to news  media or  to shareholders  of the  terms of  the proposed
corporate action.
 
    2.   To  the  extent  the  corporation  elects  to  withhold  payment  under
subsection  1, after taking the proposed corporate action, it shall estimate the
fair value of the shares,  plus accrued interest, and  shall pay this amount  to
each  dissenter who agrees to accept it  in full satisfaction of the dissenter's
demand. The corporation shall send with its offer a statement of its estimate of
the fair value of the shares, an explanation of how the interest was calculated,
and a  statement  of the  dissenter's  right  to demand  payment  under  section
490.1328.
 
490.1328 PROCEDURE IF SHAREHOLDER DISSATISFIED WITH PAYMENT OR OFFER.
 
    1.  A dissenter may notify the corporation in writing of the dissenter's own
estimate of the fair value of the dissenter's shares and amount of interest due,
and  demand payment of the dissenter's  estimate, less any payment under section
490.1325, or reject the  corporation's offer under  section 490.1327 and  demand
payment  of the fair value of the dissenter's shares and interest due, if any of
the following apply:
 
        a.  The dissenter believes that  the amount paid under section  490.1325
    or  offered  under section  490.1327  is less  than  the fair  value  of the
    dissenter's shares or that the interest due is incorrectly calculated.
 
                                     III-4
<PAGE>
        b.  The corporation fails to make payment under section 490.1325  within
    sixty days after the date set for demanding payment.
 
        c.  The corporation, having failed to take the proposed action, does not
    return  the  deposited  certificates or  release  the  transfer restrictions
    imposed on uncertificated shares  within sixty days after  the date set  for
    demanding payment.
 
    2.   A dissenter waives  the dissenter's right to  demand payment under this
section unless the dissenter notifies the corporation of the dissenter's  demand
in  writing under subsection 1 within thirty  days after the corporation made or
offered payment for the dissenter's shares.
 
                                     PART C
 
490.1330 COURT ACTION.
 
    1.  If a  demand for payment under  section 490.1328 remains unsettled,  the
corporation  shall commence a  proceeding within sixty  days after receiving the
payment demand and petition the court to determine the fair value of the  shares
and accrued interest. If the corporation does not commence the proceeding within
the sixty-day period, it shall pay each dissenter whose demand remains unsettled
the amount demanded.
 
    2.   The corporation shall commence the  proceeding in the district court of
the county where a corporation's principal office or, if none in this state, its
registered office  is  located. If  the  corporation is  a  foreign  corporation
without  a registered office in this state,  it shall commence the proceeding in
the county in this state where the registered office of the domestic corporation
merged with  or  whose shares  were  acquired  by the  foreign  corporation  was
located.
 
    3.   The corporation shall make all  dissenters, whether or not residents of
this state, whose demands  remain unsettled parties to  the proceeding as in  an
action  against their shares and  all parties must be served  with a copy of the
petition. Nonresidents  may be  served by  registered or  certified mail  or  by
publication as provided by law.
 
    4.  The jurisdiction of the court in which the proceeding is commenced under
subsection 2 is plenary and exclusive. The court may appoint one or more persons
as appraisers to receive evidence and recommend decision on the question of fair
value.
 
    The appraisers have the powers described in the order appointing them, or in
any amendment to it. The dissenters are entitled to the same discovery rights as
parties in other civil proceedings.
 
    5.   Each dissenter made  a party to the  proceeding is entitled to judgment
for either of the following:
 
        a.  The amount, if any, by which  the court finds the fair value of  the
    dissenter's   shares,  plus  interest,  exceeds   the  amount  paid  by  the
    corporation.
 
        b.    The  fair  value,  plus  accrued  interest,  of  the   dissenter's
    after-acquired  shares for which the corporation elected to withhold payment
    under section 490.1327.
 
490.1331 COURT COSTS AND COUNSEL FEES.
 
    1.  The court  in an appraisal proceeding  commenced under section  490.1330
shall   determine  all  costs  of   the  proceeding,  including  the  reasonable
compensation and expenses of appraisers appointed by the court. The court  shall
assess the costs against the corporation, except that the court may assess costs
against  all or some of the dissenters, in amounts the court finds equitable, to
the extent the court finds the dissenters acted arbitrarily, vexatiously, or not
in good faith in demanding payment under section 490.1328.
 
                                     III-5
<PAGE>
    The court may also assess the fees  and expenses of counsel and experts  for
the  respective parties, in amounts the court finds equitable, for either of the
following:
 
        a.  Against the corporation and in favor of any or all dissenters if the
    court  finds  the  corporation  did   not  substantially  comply  with   the
    requirements of sections 490.1320 through 490.1328.
 
        b.  Against either the corporation or a dissenter, in favor of any other
    party,  if the court finds that the party against whom the fees and expenses
    are assessed  acted arbitrarily,  vexatiously,  or not  in good  faith  with
    respect to the rights provided by this chapter.
 
    3.   If the court finds that the  services of counsel for any dissenter were
of substantial benefit to other dissenters similarly situated, and that the fees
for those services should not be assessed against the corporation, the court may
award to these counsel reasonable fees to be paid out of the amounts awarded the
dissenters who were benefited.
 
                                     III-6
<PAGE>
                                                                        ANNEX IV
 
                           MIDAMERICAN ENERGY COMPANY
                         1995 LONG-TERM INCENTIVE PLAN
                                I. INTRODUCTION
 
    1.1   PURPOSES.   The  purposes of  the 1995  Long-Term Incentive  Plan (the
"Plan") of MidAmerican Energy Company (the "Company") and its subsidiaries  from
time  to time (individually a  "Subsidiary" and collectively the "Subsidiaries")
are (i) to align the interests of the Company's stockholders and the  recipients
of  awards  under  this Plan  by  increasing  the proprietary  interest  of such
recipients in the Company's growth and success, (ii) to advance the interests of
the Company by  attracting and  retaining non-employee  directors, officers  and
other key employees and (iii) to motivate such employees to act in the long-term
best  interests  of  the  Company's stockholders.  For  purposes  of  this Plan,
references to  employment  by  the  Company shall  also  mean  employment  by  a
Subsidiary.
 
    1.2  CERTAIN DEFINITIONS.
 
    "AGREEMENT"  shall mean the written  agreement evidencing an award hereunder
between the Company and the recipient of such award.
 
    "BOARD" shall mean  the Board of  Directors of the  Company and  predecessor
companies where applicable.
 
    "BONUS  STOCK" shall mean shares of Common  Stock which are not subject to a
Restriction Period or Performance Measures.
 
    "BONUS STOCK AWARD" shall mean an award of Bonus Stock under this Plan.
 
    "CAUSE"  shall  mean  any  act  of  dishonesty,  commission  of  a   felony,
significant  activities harmful  to the  reputation of  the Company,  refusal to
perform or  substantial disregard  of duties  properly assigned  or  significant
violation of any statutory or common law duty of loyalty to the Company.
 
    "CHANGE IN CONTROL" shall have the meaning set forth in Section 6.8(b).
 
    "CODE" shall mean the Internal Revenue Code of 1986, as amended.
 
    "COMMITTEE"  shall mean the Compensation  Committee of the Board, consisting
of three or more members  of the Board, each of  whom shall be a  "disinterested
person" within the meaning of Rule 16b-3 under the Exchange Act.
 
    "COMMON STOCK" shall mean the common stock of the Company.
 
    "COMPANY"  has  the  meaning  specified in  Section  1.1  and  shall include
predecessor companies where applicable.
 
    "DISABILITY" shall mean the inability of  the holder of an award to  perform
substantially  such holder's duties and responsibilities for a continuous period
of at least six months, as determined solely by the Committee.
 
    "ERISA" shall mean the Employee Retirement  Income Security Act of 1974,  as
amended.
 
    "EXCHANGE ACT" shall mean the Securities Exchange Act of 1934, as amended.
 
    "FAIR  MARKET VALUE" shall mean the closing  transaction price of a share of
Common Stock as reported in the  New York Stock Exchange Composite  Transactions
on  the date as of which such value is being determined; provided, however, that
if Fair Market Value  for any date  cannot be so  determined, Fair Market  Value
shall  be  determined  by the  Committee  by  whatever means  or  method  as the
Committee, in the good faith exercise of its discretion, shall at such time deem
appropriate.
 
                                      IV-1
<PAGE>
    "FREE-STANDING SAR" shall mean an SAR which is not issued in tandem with, or
by reference to, an option, which  entitles the holder thereof to receive,  upon
exercise,  shares of  Common Stock  (which may be  Restricted Stock),  cash or a
combination thereof with  an aggregate  value equal to  the excess  of the  Fair
Market  Value of one share of Common Stock on the date of exercise over the base
price of such SAR, multiplied by the number of such SARs which are exercised.
 
    "INCENTIVE STOCK OPTION" shall mean an  option to purchase shares of  common
stock  that meets the requirements of Section  422 of the Code, or any successor
provision, which is intended by the  Committee to constitute an Incentive  Stock
Option.
 
    "INCUMBENT BOARD" means the members of the Board on August 1, 1995. For this
purpose, an individual who becomes a member of the Board subsequent to August 1,
1995  and who has been  nominated for election by  the Company's shareholders by
resolution adopted  by a  vote of  at  least two-thirds  of the  directors  then
comprising  the  Incumbent Board  at a  duly convened  meeting thereof  shall be
deemed to be a member of the Incumbent Board.
 
    "MATURE SHARES"  shall mean  shares of  Common Stock  for which  the  holder
thereof  has good title, free and clear  of all liens and encumbrances and which
such holder either (i) has held for at least six months or (ii) has purchased on
the open market.
 
    "NON-STATUTORY STOCK  OPTION" shall  mean a  stock option  which is  not  an
Incentive Stock Option.
 
    "PERFORMANCE  MEASURES" shall mean the  criteria and objectives, established
by the Committee,  which shall be  satisfied or met  (i) as a  condition to  the
exercisability  of all or a portion of an  option or SAR, (ii) as a condition to
the grant of a Stock Award or (iii) during the applicable Restriction Period  or
Performance  Period as  a condition to  the holder's  receipt, in the  case of a
Restricted Stock Award, of the shares of Common Stock subject to such award, or,
in the case of a Performance Share Award, of payment with respect to such award.
Such criteria and objectives may include, but are not limited to, the attainment
by a share  of Common Stock  of a specified  Fair Market Value  for a  specified
period  of  time, earnings  per  share, total  earnings,  net income,  return to
stockholders (including  dividends),  return  on gross  assets,  return  on  net
assets,  growth in assets, return on  equity, revenues, free cash flow, expenses
as a percentage of assets, cost reduction goals, shareholder value, and customer
satisfaction, or any  combination of the  foregoing and any  other criteria  and
objectives  established  by  the  Committee.  In  the  sole  discretion  of  the
Committee, the Committee may amend or  adjust the Performance Measures or  other
terms  and  conditions of  an  outstanding award  in  recognition of  unusual or
nonrecurring events affecting the Company or its financial statements or changes
in law or accounting principles.
 
    "PERFORMANCE PERIOD"  shall mean  a period  of  not less  than one  year  or
greater   than  five  years,  designated  by  the  Committee  during  which  the
Performance Measures applicable to a Performance Share Award shall be measured.
 
    "PERFORMANCE SHARES" shall mean a  right, contingent upon the attainment  of
specified Performance Measures within a specified Performance Period, to receive
one share of Common Stock, which may be Restricted Stock, or in lieu of all or a
portion thereof, the Fair Market Value of such Performance Share in cash.
 
    "PERFORMANCE  SHARE AWARD" shall  mean an award  of Performance Shares under
this Plan.
 
    "PERMANENT AND TOTAL DISABILITY" shall have the meaning set forth in Section
22(e)(3) of the Code or any successor thereto.
 
    "RESTRICTED STOCK" shall mean shares of Common Stock which are subject to  a
Restriction Period.
 
    "RESTRICTED  STOCK AWARD" shall mean an award of Restricted Stock under this
Plan.
 
                                      IV-2
<PAGE>
    "RESTRICTION PERIOD"  shall mean  a period  of  not less  than one  year  or
greater  than five  years, designated by  the Committee during  which the Common
Stock subject  to  a  Restricted  Stock Award  may  not  be  sold,  transferred,
assigned,  pledged, hypothecated or otherwise  encumbered or disposed of, except
as provided in this Plan or the Agreement relating to such award.
 
    " SAR" shall mean  a stock appreciation right  which may be a  Free-Standing
SAR or a Tandem SAR.
 
    "STOCK AWARD" shall mean a Restricted Stock Award or a Bonus Stock Award.
 
    "TANDEM  SAR"  shall mean  an SAR  which is  granted in  tandem with,  or by
reference to, an option (including a Non-Statutory Stock Option granted prior to
the date of grant  of the SAR),  which entitles the  holder thereof to  receive,
upon  exercise of such SAR and surrender for cancellation of all or a portion of
such option, shares of Common Stock (which  may be Restricted Stock), cash or  a
combination  thereof with  an aggregate  value equal to  the excess  of the Fair
Market Value of one share of Common Stock on the date of exercise over the  base
price of such SAR, multiplied by the number of shares of Common Stock subject to
such option, or portion thereof, which is surrendered.
 
    "TAX DATE" shall have the meaning set forth in Section 6.5.
 
    1.3   ADMINISTRATION.  This Plan shall be administered by the Committee. Any
one or a  combination of the  following awards may  be made under  this Plan  to
eligible officers and other key employees of the Company and its Subsidiaries: (
i  ) options to purchase  shares of Common Stock in  the form of Incentive Stock
Options or Non-Statutory Stock Options, (ii) SARs in the form of Tandem SARs  or
Free-Standing  SARs, (iii) Stock Awards in the form of Restricted Stock or Bonus
Stock and (iv) Performance Shares. The Committee shall, subject to the terms  of
this Plan, select eligible officers and other key employees for participation in
this  Plan  and determine  the form,  amount and  timing of  each award  to such
persons and, if applicable, the number of shares of Common Stock, the number  of
SARs and the number of Performance Shares subject to such an award, the exercise
price  or  base price  associated with  the  award, the  time and  conditions of
exercise or settlement of the  award and all other  terms and conditions of  the
award,  including, without limitation, the form  of the Agreement evidencing the
award. The Committee shall,  subject to the terms  of this Plan, interpret  this
Plan  and  the application  thereof, establish  rules  and regulations  it deems
necessary or  desirable for  the administration  of this  Plan and  may  impose,
incidental  to the grant of an award, conditions with respect to the award, such
as   limiting   competitive   employment   or   other   activities.   All   such
interpretations,  rules,  regulations  and conditions  shall  be  conclusive and
binding on all parties.
 
    The Committee may delegate some or all of its power and authority  hereunder
to  the President  or other  executive officer of  the Company  as the Committee
deems appropriate; provided, however,  that the Committee  may not delegate  its
power  and authority with regard to the selection for participation in this Plan
of an officer  or other  person subject  to Section 16  of the  Exchange Act  or
decisions  concerning  the timing,  pricing or  amount  of an  award to  such an
officer or other person.
 
    No member of the Board of Directors or Committee, and neither the  President
and  Chief  Executive  Officer  nor  any other  executive  officer  to  whom the
Committee delegates any of  its power and authority  hereunder, shall be  liable
for  any act,  omission, interpretation,  construction or  determination made in
connection with  this Plan  in  good faith,  and the  members  of the  Board  of
Directors  and the  Committee and the  President and Chief  Executive Officer or
other executive officer shall be  entitled to indemnification and  reimbursement
by  the Company  in respect  of any  claim, loss,  damage or  expense (including
attorneys' fees) arising therefrom to the  full extent permitted by law,  except
as  otherwise may be provided in  the Company's Articles of Incorporation and/or
By-laws, and under any directors' and officers' liability insurance that may  be
in effect from time to time.
 
    A  majority of  the Committee  shall constitute  a quorum.  The acts  of the
Committee shall be either (i) acts of a majority of the members of the Committee
present at any meeting  at which a  quorum is present or  (ii) acts approved  in
writing by a majority of the members of the Committee without a meeting.
 
                                      IV-3
<PAGE>
    1.4   ELIGIBILITY.  Participants in this Plan shall consist of such officers
and other key employees of the Company and its Subsidiaries as the Committee  in
its sole discretion may select from time to time. The Committee's selection of a
person  to participate in this Plan at  any time shall not require the Committee
to select such person to participate in this Plan at any other time.
 
    1.5  SHARES AVAILABLE.   Subject to adjustment  as provided in Section  6.7,
4,000,000  shares of Common Stock shall be available under this Plan, reduced by
the sum of the aggregate  number of shares of Common  Stock (i) that are  issued
upon  the grant of  a Stock Award  and (ii) which  become subject to outstanding
options, outstanding Free-Standing SARs  and outstanding Performance Shares.  To
the  extent that shares of Common Stock subject to an outstanding option (except
to the extent shares of Common Stock  are issued or delivered by the Company  in
connection  with the exercise of a Tandem SAR), Free-Standing SAR or Performance
Share are not  issued or  delivered by  reason of  the expiration,  termination,
cancellation  or  forfeiture of  such  award or  by  reason of  the  delivery or
withholding of shares of Common  Stock to pay all or  a portion of the  exercise
price of an award, if any, or to satisfy all or a portion of the tax withholding
obligations  relating to an award, then such  shares of Common Stock shall again
be available under this Plan.
 
    Shares of  Common  Stock to  be  delivered under  this  Plan shall  be  made
available from authorized and unissued shares of Common Stock, or authorized and
issued  shares  of  Common  Stock  reacquired and  held  as  treasury  shares or
otherwise or a combination thereof.
 
                II. STOCK OPTIONS AND STOCK APPRECIATION RIGHTS
 
    2.1  STOCK OPTION.  The Committee  may, in its discretion, grant options  to
purchase  shares of Common Stock to such  eligible persons as may be selected by
the Committee. Each option, or portion  thereof, that is not an Incentive  Stock
Option, shall be a Non-Statutory Stock Option. Each Incentive Stock Option shall
be granted within ten years of the effective date of this Plan.
 
    To  the extent that  the aggregate Fair  Market Value (determined  as of the
date of  grant)  of  shares  of  Common Stock  with  respect  to  which  options
designated  as Incentive Stock Options  are exercisable for the  first time by a
participant during any calendar year (under this  Plan or any other plan of  the
Company,  or any parent  or Subsidiary) exceeds  the amount (currently $100,000)
established by  the  Code, such  options  shall constitute  Non-Statutory  Stock
Options.
 
    Options  shall be  subject to the  following terms and  conditions and shall
contain such additional terms and conditions, not inconsistent with the terms of
this Plan, as the Committee shall deem advisable:
 
        (a)  NUMBER  OF SHARES  AND PURCHASE  PRICE.   The number  of shares  of
    Common Stock subject to an option and the purchase price per share of Common
    Stock  purchasable upon  exercise of the  option shall be  determined by the
    Committee; provided, however, that  the purchase price  per share of  Common
    Stock purchasable upon exercise of a Non-Statutory Stock Option shall not be
    less  than 100% of the Fair  Market Value of a share  of Common Stock on the
    date of grant  of such option  and the  purchase price per  share of  Common
    Stock  purchasable upon exercise  of an Incentive Stock  Option shall not be
    less than 100% of the  Fair Market Value of a  share of Common Stock on  the
    date of grant of such option.
 
        (b)    OPTION PERIOD  AND EXERCISABILITY.   The  period during  which an
    option may  be exercised  shall be  determined by  the Committee;  provided,
    however,  that no Incentive  Stock Option shall be  exercised later than ten
    years after  its  date of  grant.  The  Committee may,  in  its  discretion,
    establish  Performance  Measures  which  shall  be  satisfied  or  met  as a
    condition to the grant  of an option  or to the exercisability  of all or  a
    portion  of an option. The Committee shall determine whether an option shall
    become exercisable in cumulative or non-cumulative installments and in  part
    or  in full at any  time. An exercisable option,  or portion thereof, may be
    exercised only with respect to whole shares of Common Stock.
 
                                      IV-4
<PAGE>
        (c)  METHOD  OF EXERCISE.   An  option may  be exercised  (i) by  giving
    written  notice  to the  Company specifying  the number  of whole  shares of
    Common Stock to be purchased and accompanied by payment therefor in full (or
    arrangement made for such payment to the Company's satisfaction) either  (A)
    in  cash,  (B) by  delivery of  Mature  Shares having  a Fair  Market Value,
    determined as of the date of exercise, equal to the aggregate purchase price
    payable by  reason of  such  exercise, (C)  by  authorizing the  Company  to
    withhold  whole shares  of Common Stock  which would  otherwise be delivered
    upon exercise of the option having a Fair Market Value, determined as of the
    date of exercise, equal to the aggregate purchase price payable by reason of
    such exercise, (D) in cash by  a broker-dealer acceptable to the Company  to
    whom  the optionee has submitted an irrevocable  notice of exercise or (E) a
    combination of (A), (B) and (C), in each case to the extent set forth in the
    Agreement relating to the option, (ii) if applicable, by surrendering to the
    company any tandem SARs which are cancelled by reason of the exercise of the
    option and (iii) by executing such  documents as the Company may  reasonably
    request.  The  Committee  shall have  sole  discretion to  disapprove  of an
    election pursuant to any of clauses (B)-(E)  and in the case of an  optionee
    who  is subject to Section  16 of the Exchange  Act, the Company may require
    that the method of making such payment be in compliance with Section 16  and
    the  rules and  regulations thereunder.  Any fraction  of a  share of Common
    Stock  which  would  be  required  to  pay  such  purchase  price  shall  be
    disregarded  and  the remaining  amount due  shall  be paid  in cash  by the
    optionee. No certificate representing Common Stock shall be delivered  until
    the full purchase price therefor has been paid.
 
    2.2  STOCK APPRECIATION RIGHTS.  The Committee may, in its discretion, grant
SARs to such eligible persons as may be selected by the Committee. The Agreement
relating  to  an  SAR  shall specify  whether  the  SAR  is a  Tandem  SAR  or a
Free-Standing SAR.
 
    SARs shall  be subject  to  the following  terms  and conditions  and  shall
contain such additional terms and conditions, not inconsistent with the terms of
this Plan, as the Committee shall deem advisable:
 
        (a)   NUMBER OF SARS AND  BASE PRICE.  The number  of SARs subject to an
    award shall be  determined by the  Committee. Any Tandem  SAR related to  an
    Incentive Stock Option shall be granted at the same time that such Incentive
    Stock  Option  is  granted.  Subject  to the  terms  of  this  Plan  and any
    applicable Agreement relating  to an  SAR, an  SAR granted  under this  Plan
    shall  confer  on  the holder  thereof  a  right to  receive,  upon exercise
    thereof, the excess  of (i) the  Fair Market  Value of one  share of  Common
    Stock on the date of exercise or, if the Committee shall so determine in the
    case  of  any such  right other  than a  Tandem  SAR, at  any time  during a
    specified period before or  after the date of  exercise over (ii) the  grant
    price  of the right as  specified by the Committee,  which shall not be less
    than the Fair Market Value of one share of Common Stock on the date of grant
    of the  SAR (or  if the  Committee so  determines, in  the case  of any  SAR
    retroactively  granted in tandem  with or substitution  for another award or
    any outstanding award granted  under any other plan  of the Company, on  the
    date  of grant of such  other award). Subject to the  terms of this Plan and
    any applicable agreement, the grant price, term, method of exercise,  method
    of  settlement  and any  other  terms and  conditions  of any  SAR  shall be
    determined by the  Committee. The  Committee may impose  such conditions  or
    restrictions  on  the exercise  of  any SAR  or Tandem  SAR  as it  may deem
    appropriate.
 
        2.3  TERMINATION OF EMPLOYMENT.   (a) DISABILITY.  Subject to  paragraph
    (f)  below and Section  6.8 and unless otherwise  specified in the Agreement
    relating to an option or SAR, as the case may be, if the employment with the
    Company of  the  holder  of  an  option  or  SAR  terminates  by  reason  of
    Disability,  each  option  and  SAR  held  by  such  holder  shall  be fully
    exercisable and may thereafter be exercised by such holder (or such holder's
    legal representative or similar person) until and including the earliest  to
    occur of (i) a date set by the Committee and (ii) the expiration date of the
    term of such option or SAR.
 
                                      IV-5
<PAGE>
        (b)   RETIREMENT.   Subject to paragraph  (f) below and  Section 6.8 and
    unless otherwise specified in the Agreement relating to an option or SAR, as
    the case may  be, if the  employment with the  Company of the  holder of  an
    option  or SAR terminates by reason of retirement on or after age 55 after a
    minimum of 5 years of employment with the Company, each option and SAR  held
    by such holder shall be fully exercisable and may thereafter be exercised by
    such  holder (or such holder's legal representative or similar person) until
    and including the earliest to occur of  (i) a date set by the Committee  and
    (ii) the expiration date of the term of such option or SAR.
 
        (c)   DEATH.  Subject to paragraph  (f) below and Section 6.8 and unless
    otherwise specified in the  Agreement relating to an  option or SAR, as  the
    case  may be, if the employment with the  Company of the holder of an option
    or SAR terminates  by reason  of death,  each option  and SAR  held by  such
    holder  shall be fully  exercisable and may thereafter  be exercised by such
    holder's  executor,  administrator,  legal  representative,  beneficiary  or
    similar  person, as  the case  may be, until  and including  the earliest to
    occur of (i) the date which is 1  year after the date of death and (ii)  the
    expiration date of the term of such option or SAR.
 
        (d)   OTHER TERMINATION.  Subject to paragraph (f) below and Section 6.8
    and unless otherwise  specified in the  Agreement relating to  an option  or
    SAR, as the case may be, if the employment with the Company of the holder of
    an option or SAR is terminated by the Company for Cause, each option and SAR
    held  by such holder shall terminate  automatically on the effective date of
    such holder's termination of employment.
 
        Subject to  paragraph (f)  below and  Section 6.8  and unless  otherwise
    specified in the Agreement relating to an option or SAR, as the case may be,
    if  the  employment with  the  Company of  the holder  of  an option  or SAR
    terminates for any reason other than Disability, retirement on or after  age
    55  after  a minimum  of 5  years of  employment with  the Company  with the
    consent of the Company,  death or Cause,  each option and  SAR held by  such
    holder  shall be exercisable only  to the extent that  such option or SAR is
    exercisable on the effective date of such holder's termination of employment
    and may  thereafter be  exercised by  such holder  (or such  holder's  legal
    representative  or similar person) until and including the earliest to occur
    of (i) the date which is 6 months after the effective date of termination of
    employment and (ii) the expiration date of the term of such option or SAR.
 
        (e)  DEATH FOLLOWING  TERMINATION OF EMPLOYMENT.   Subject to  paragraph
    (f)  below and Section  6.8 and unless otherwise  specified in the Agreement
    relating to an option or SAR, as the case may be, if the holder of an option
    or SAR dies during the 1 year period following termination of employment  by
    reason of Disability, or if the holder of an option or SAR dies during the 1
    year  period following termination of employment  by reason of retirement on
    or after age 55 after a minimum of 5 years of employment with the Company or
    if the holder of an option or  SAR dies during the 6 month period  following
    termination of employment for any reason other than Disability or retirement
    on or after age 55 after a minimum of 5 years of employment with the Company
    (or,  in each case, such other period as set forth in the Agreement relating
    to such option or  SAR), each option  and SAR held by  such holder shall  be
    exercisable  only to the extent that such option or SAR, as the case may be,
    is exercisable on  the date  of such holder's  death and  may thereafter  be
    exercised  by  the holder's  executor, administrator,  legal representative,
    beneficiary or similar person, as the  case may be, until and including  the
    earliest  to occur of (i) the date which is 6 months after the date of death
    and (ii) the expiration date of the term of such option or SAR.
 
        (f)  TERMINATION OF EMPLOYMENT --  INCENTIVE STOCK OPTIONS.  Subject  to
    Section  6.8 and unless otherwise specified in the Agreement relating to the
    option, if the employment with the Company of a holder of an Incentive Stock
    Option terminates by reason of Disability, each Incentive Stock Option  held
    by  such optionee shall be fully exercisable and may thereafter be exercised
    by such optionee (or such optionee's legal representative or similar person)
    until and including the earliest to occur of (i) a date set by the Committee
    upon the determination a Disability exists  and (ii) the expiration date  of
    the term of such option.
 
                                      IV-6
<PAGE>
    Subject  to  Section 6.8  and unless  otherwise  specified in  the Agreement
relating to the option,  if the employment  with the Company of  a holder of  an
Incentive  Stock  Option terminates  by reason  of  death, each  Incentive Stock
Option held by such  optionee shall be fully  exercisable and may thereafter  be
exercised  by  such  optionee's executor,  administrator,  legal representative,
beneficiary or similar person until and  including the earliest to occur of  (i)
the date which is 1 year after the date of death and (ii) the expiration date of
the term of such option.
 
    If  the employment with  the Company of  the optionee of  an Incentive Stock
Option is terminated by the Company for Cause, each Incentive Stock Option  held
by  such optionee  shall terminate automatically  on the effective  date of such
optionee's  termination  of  employment.  Subject  to  Section  6.8  and  unless
otherwise  specified in the Agreement relating  to the option, if the employment
with the Company of  a holder of  an Incentive Stock  Option terminates for  any
reason other than Permanent and Total Disability, death or Cause, each Incentive
Stock  Option held by such optionee shall be exercisable only to the extent such
option is exercisable on  the effective date of  such optionee's termination  of
employment,  and may  thereafter be exercised  by such holder  (or such holder's
legal representative  or similar  person) until  and including  the earliest  to
occur  of  (i) the  date which  is 3  months  after the  effective date  of such
optionee's termination of employment and (ii) the expiration date of the term of
such option.
 
    If the holder of an Incentive  Stock Option dies during the one-year  period
following  termination of employment by reason of Permanent and Total Disability
(or such shorter period as set forth in the Agreement relating to such  option),
or if the holder of an incentive stock option dies during the three-month period
following  termination of  employment for  any reason  other than  Permanent and
Total Disability,  death or  Cause, each  Incentive Stock  Option held  by  such
optionee  shall be exercisable only to the  extent such option is exercisable on
the date  of  the  optionee's death  and  may  thereafter be  exercised  by  the
optionee's executor, administrator, legal representative, beneficiary or similar
person  until and  including the earliest  to occur of  (i) the date  which is 6
months after the date of death and (ii) the expiration date of the term of  such
option.
 
                               III. STOCK AWARDS
 
    3.1  STOCK AWARDS.  The Committee may, in its discretion, grant Stock Awards
to  such  eligible persons  as  may be  selected  by the  Committee.  Subject to
adjustment as provided  in Section  6.7 of this  Plan, the  aggregate number  of
shares  of Common Stock available  under this Plan pursuant  to all Stock Awards
shall not  exceed 600,000  of the  aggregate number  of shares  of Common  Stock
available under this Plan. The Agreement relating to a Stock Award shall specify
whether the Stock Award is a Restricted Stock Award or Bonus Stock Award.
 
    3.2   TERMS OF STOCK AWARDS.  Stock Awards shall be subject to the following
terms and conditions and shall contain such additional terms and conditions, not
inconsistent with the terms of this Plan, as the Committee shall deem advisable.
 
        (a)  NUMBER OF SHARES AND OTHER  TERMS.  The number of shares of  Common
    Stock  subject to  a Restricted  Stock Award  or Bonus  Stock Award  and the
    Performance Measures  (if  any)  and  Restriction  Period  applicable  to  a
    Restricted Stock Award shall be determined by the Committee.
 
        (b)   VESTING  AND FORFEITURE.   The Agreement relating  to a Restricted
    Stock Award shall provide, in the manner determined by the Committee, in its
    discretion, and subject to the provisions  of this Plan, for the vesting  of
    the  shares  of  Common  Stock  subject  to  such  award  (i)  if  specified
    Performance Measures are satisfied or  met during the specified  Restriction
    Period  or (ii)  if the  holder of  such award  remains continuously  in the
    employment of the Company  during the specified  Restriction Period and  for
    the  forfeiture of the shares  of Common Stock subject  to such award (x) if
    specified Performance Measures are not satisfied or met during the specified
    Restriction Period  or (y)  if the  holder  of such  award does  not  remain
    continuously   in  the  employment  of  the  Company  during  the  specified
    Restriction Period.
 
                                      IV-7
<PAGE>
        Bonus Stock Awards shall not be  subject to any Performance Measures  or
    Restriction Periods.
 
        (c)   SHARE CERTIFICATES.  During  the Restriction Period, a certificate
    or certificates representing a Restricted  Stock Award may be registered  in
    the holder's name and may bear a legend, in addition to any legend which may
    be  required pursuant to  Section 6.6, indicating that  the ownership of the
    shares of Common  Stock represented by  such certificate is  subject to  the
    restrictions,  terms and conditions of this  Plan and the Agreement relating
    to the Restricted Stock Award. All such certificates shall be deposited with
    the Company, together with stock  powers or other instruments of  assignment
    (including  a power of attorney), each endorsed in blank with a guarantee of
    signature if deemed necessary or appropriate, which would permit transfer to
    the Company of all or a portion of the shares of Common Stock subject to the
    Restricted Stock Award in the event such  award is forfeited in whole or  in
    part  upon  termination  of  any  applicable  Restriction  Period  (and  the
    satisfaction or attainment of applicable Performance measures), or upon  the
    grant of a Bonus Stock Award, in each case subject to the Company's right to
    require  payment of any taxes in  accordance with Section 6.5, a certificate
    or certificates evidencing ownership  of the requisite  number of shares  of
    Common Stock shall be delivered to the holder of such award.
 
        (d)   RIGHTS WITH RESPECT TO  RESTRICTED STOCK AWARDS.  Unless otherwise
    set forth in the Agreement relating to a Restricted Stock Award, and subject
    to the terms and conditions of a Restricted Stock Award, the holder of  such
    award  shall have all rights as a stockholder of the Company, including, but
    not limited to, voting rights, the right to receive dividends and the  right
    to participate in any capital adjustment applicable to all holders of Common
    Stock;  provided, however,  that a  distribution with  respect to  shares of
    Common Stock, other than a regular cash dividend shall be deposited with the
    Company and  shall be  subject to  the same  restrictions as  the shares  of
    Common Stock with respect to which such distribution was made.
 
    3.3     TERMINATION   OF  EMPLOYMENT.     (a)   DISABILITY.  RETIREMENT  AND
DEATH.  Subject to Section 6.8 and  unless otherwise set forth in the  Agreement
relating  to a Restricted Stock Award, if the employment with the Company of the
holder of such award terminates by reason  of (i) Disability or death, then  the
Restriction  Period shall  terminate as of  the effective date  of such holder's
disability or as  of the date  of death  and all Performance  Measures, if  any,
applicable  to such award shall  be deemed to have  been satisfied at the target
level or  (ii) retirement  on or  after age  55 with  a minimum  of 5  years  of
employment  with the  Company or termination  by the Company  without cause, the
Restriction Period shall continue to apply and all Performance Measures, if any,
applicable to such award  shall also continue to  apply and the restrictions  on
the  restricted  stock awards  shall  be removed  based  on actual  results with
respect to any performance measures.
 
        (b)  OTHER TERMINATION.  Subject to Section 6.8 and unless otherwise set
    forth in  the  Agreement  relating  to a  Restricted  Stock  Award,  if  the
    employment  with  the Company  of  the holder  of  a Restricted  Stock Award
    terminates for any reason other than Disability, retirement on or after  age
    55 after a minimum of 5 years of employment with the Company, termination by
    the  Company without  cause or  death, the  portion of  such award  which is
    subject to  a Restriction  Period on  the effective  date of  such  holder's
    termination  of  employment shall  be forfeited  and  such portion  shall be
    cancelled by the Company.
 
                          IV. PERFORMANCE SHARE AWARDS
 
    4.1  PERFORMANCE SHARE AWARDS.  The Committee may, in its discretion,  grant
Performance  Share Awards  to such  eligible persons as  may be  selected by the
Committee.
 
    4.2  TERMS OF PERFORMANCE SHARE  AWARDS.  Performance Share Awards shall  be
subject  to the following terms and conditions and shall contain such additional
terms and  conditions, not  inconsistent with  the terms  of this  Plan, as  the
Committee shall deem advisable.
 
                                      IV-8
<PAGE>
        (a)   NUMBER OF PERFORMANCE SHARES AND PERFORMANCE MEASURES.  The number
    of Performance Shares subject to any award and the Performance Measures  and
    Performance  Period  applicable to  such award  shall  be determined  by the
    Committee.
 
        (b)  VESTING AND  FORFEITURE.  The Agreement  relating to a  Performance
    Share Award shall provide, in the manner determined by the Committee, in its
    discretion,  and subject to the provisions of  this Plan, for the vesting of
    such award if specified Performance Measures are satisfied or met during the
    specified Performance  Period, and  for  the forfeiture  of such  award,  if
    specified Performance Measures are not satisfied or met during the specified
    Performance Period.
 
        (c)    SETTLEMENT OF  VESTED PERFORMANCE  SHARE  AWARDS.   The Agreement
    relating to a Performance Share Award  (i) shall specify whether such  award
    may  be settled  in shares of  Common Stock (including  shares of Restricted
    Stock) or cash  or a combination  thereof and (ii)  may specify whether  the
    holder thereof shall be entitled to receive, on a current or deferred basis,
    dividend  equivalents, and, if determined by  the Committee, interest on any
    deferred dividend  equivalents, with  respect  to the  number of  shares  of
    Common  Stock subject to such award. If a Performance Share Award is settled
    in shares of  Restricted Stock, a  certificate or certificates  representing
    such  Restricted Stock shall be issued in accordance with Section 3.2(c) and
    the holder of such Restricted Stock shall have such rights of a  stockholder
    of  the  Company as  determined  pursuant to  Section  3.2(d). Prior  to the
    settlement of a Performance Share Award in shares of Common Stock, including
    Restricted Stock,  the  holder of  such  award shall  have  no rights  as  a
    stockholder  of  the Company  with  respect to  the  shares of  Common Stock
    subject to such award and shall have rights as a stockholder of the  Company
    in accordance with Section 6.10.
 
    4.3     TERMINATION   OF  EMPLOYMENT.     (a)   DISABILITY,  RETIREMENT  AND
DEATH.  Subject to Section 6.8 and  unless otherwise set forth in the  Agreement
relating to a Performance Share Award, if the employment with the Company of the
holder  of such award terminates by reason  of (i) Disability or death, then all
Performance Measures  applicable to  such award  shall be  deemed to  have  been
satisfied  at the  target level  and the  Performance Period  applicable to such
award shall thereupon terminate or  (ii) retirement on or  after age 55 after  a
minimum  of 5 years of employment with the Company or termination by the Company
without cause, all Performance Measures applicable to such award shall  continue
to apply and payment of any Performance Share Awards shall be made in a pro rata
amount  at the same time and manner  as with other eligible persons with respect
to such awards, based on actual  results of the Performance Measures, unless  in
its  sole discretion, the  Committee determines otherwise.  Such pro rata amount
shall be determined by multiplying the award that would have otherwise been paid
had there been no termination under (ii)  above by a fraction, the numerator  of
which  is the number of full months  of employment during the Performance Period
and the denominator of  which is the  number of full  months in the  Performance
Period.  A partial month  shall be treated  as a full  month if the  holder of a
Performance Share Award has held such award for 15 or more calendar days of such
month.
 
        (b)  OTHER TERMINATION.  Subject to Section 6.8 and unless otherwise set
    forth in  the  Agreement relating  to  a  Performance Share  Award,  if  the
    employment  with  the Company  of the  holder of  a Performance  Share Award
    terminates for any reason other than Disability, retirement on or after  age
    55 after a minimum of 5 years of employment with the Company, termination by
    the  Company without  cause or  death, the  portion of  such award  which is
    subject to  a Performance  Period on  the effective  date of  such  holder's
    termination  of  employment shall  be forfeited  and  such portion  shall be
    cancelled by the Company.
 
             V. RESTRICTED STOCK AWARDS FOR NON-EMPLOYEE DIRECTORS
 
    5.1  RESTRICTED STOCK AWARDS.  As of the date of adoption of this Plan, each
Non-Employee Director (a member of the Board  who is not an officer or  employee
of  the Company or any Subsidiary) shall receive a Restricted Stock Award of 800
shares of Common Stock. Furthermore, upon the initial election of a director  to
the  Board, whether  at an annual  election or  to fill a  vacancy, a Restricted
Stock
 
                                      IV-9
<PAGE>
Award consisting of 800 shares of Common  Stock shall be made to such  director.
Additional Restricted Stock Awards of 800 shares of Common Stock will be made to
each  Non-Employee Director, who continues on  the Board, each year effective as
of May 1st of such year, beginning in 1996.
 
    5.2  RIGHTS AND RESTRICTIONS AS TO RESTRICTED STOCK AWARDS.  The  provisions
of  Sections 3.2(b)  and (c)  shall apply with  respect to  the Restricted Stock
Awards hereunder.
 
    5.3  RESTRICTION PERIODS.  All of the shares of Common Stock issued pursuant
to the Restricted Stock Awards hereunder  shall become free of the  restrictions
imposed  by this Article V and  shall become nonforfeitable upon any termination
of Board service for any reason by the Non-Employee Director.
 
                                  VI. GENERAL
 
    6.1  EFFECTIVE DATE AND TERM OF PLAN.   This Plan shall be submitted to  the
stockholders  of the  Company for approval  and, if approved  by the affirmative
vote of  a  majority  of  the  shares of  Common  Stock  present  in  person  or
represented  by proxy at  the 1996 annual meeting  of stockholders, shall become
effective on the date of such approval. This Plan shall terminate 10 years after
its effective date unless terminated earlier  by the Board. Termination of  this
Plan  shall not  affect the terms  or conditions  of any award  granted prior to
termination.
 
    Awards hereunder may be made  at any time prior  to the termination of  this
Plan, provided that no award may be made later than 10 years after the effective
date  of  this  Plan.  In the  event  that  this  Plan is  not  approved  by the
stockholders of the Company,  this Plan and any  awards hereunder shall be  void
and of no force or effect.
 
    6.2   AMENDMENTS.  The Board may amend this Plan as it shall deem advisable,
subject to any requirement of  stockholder approval required by applicable  law,
rule  or  regulation  including Rule  16b-3  under the  Exchange  Act, provided,
however, that no amendment  shall be made without  stockholder approval if  such
amendment  would  (a) increase  the  maximum number  of  shares of  Common Stock
available under  this Plan  (subject to  Section 6.7),  (b) reduce  the  minimum
purchase price in the case of an option or the base price in the case of an SAR,
(c)  effect any change inconsistent  with Section 422 of  the Code or (d) extend
the term of  this Plan. No  amendment may impair  the rights of  a holder of  an
outstanding award without the consent of such holder.
 
    6.3    AGREEMENT.   Except  with respect  to  Restricted Stock  Awards under
Article V, each award under this Plan shall be evidenced by an Agreement setting
forth the terms and conditions applicable to such award. No award shall be valid
until an Agreement is executed  by the Company and  the recipient of such  award
and,  upon execution by each party and delivery of the Agreement to the Company,
such award  shall  be effective  as  of the  effective  date set  forth  in  the
Agreement.
 
    6.4   NON-TRANSFERABILITY OF STOCK OPTIONS, SARS AND PERFORMANCE SHARES.  No
option, SAR or Performance Share shall  be transferable other than (i) by  will,
the  laws of  descent and  distribution or  pursuant to  beneficiary designation
procedures approved by  the Company or  (ii) as otherwise  permitted under  Rule
16b-3  under the  Exchange Act as  set forth  in the Agreement  relating to such
award except to the extent permitted by the foregoing sentence, each option, SAR
or Performance  Share  may be  exercised  or settled  during  the  participant's
lifetime  only by  the holder  or the  holder's legal  representative or similar
person. Except as permitted by the second preceding sentence, no option, SAR  or
Performance  Share may  be sold,  transferred, assigned,  pledged, hypothecated,
encumbered or otherwise disposed of (whether  by operation of law or  otherwise)
or  be subject to execution, attachment or  similar process. Upon any attempt to
so sell, transfer, assign, pledge, hypothecate, encumber or otherwise dispose of
any option, SAR or Performance Share, such award and all rights thereunder shall
immediately become null and void.
 
    6.5  TAX WITHHOLDING.  The Company shall have the right to require, prior to
the issuance or delivery  of any shares  of Common Stock or  the payment of  any
cash pursuant to an award made
 
                                     IV-10
<PAGE>
hereunder,  payment by the holder of such  award of any Federal, state, local or
other taxes which may be required to be withheld or paid in connection with such
award. An Agreement may provide that (i) the Company shall withhold whole shares
of Common  Stock which  would otherwise  be  delivered to  a holder,  having  an
aggregate Fair Market Value determined as of the date the obligation to withhold
or pay taxes arises in connection with an award (the "Tax Date"), or withhold an
amount  of cash  which would  otherwise be  payable to  a holder,  in the amount
necessary to satisfy any such obligation or (ii) the holder may satisfy any such
obligation by any of the following means: (A) a cash payment to the company, (B)
delivery to the Company of Mature Shares having an aggregate Fair Market  Value,
determined as of the Tax date, equal to the amount necessary to satisfy any such
obligation, (C) authorizing the Company to withhold whole shares of Common stock
which  would  otherwise  be delivered  having  an aggregate  Fair  Market Value,
determined as  of the  Tax  Date, or  withhold an  amount  of cash  which  would
otherwise  be payable to a holder, equal  to the amount necessary to satisfy any
such obligation, (D) in the case of the exercise of an option, a cash payment by
a broker-dealer acceptable to the Company to whom the optionee has submitted  an
irrevocable  notice of exercise or  (E) any combination of  (A), (B) and (C), in
each case  to the  extent set  forth in  the Agreement  relating to  the  award;
provided,  however, that the Committee shall  have sole discretion to disapprove
of an election  pursuant to any  of clauses (B)-(E)  and that in  the case of  a
holder who is subject to Section 16 of the Exchange Act, the Company may require
that  the method of satisfying such an  obligation be in compliance with Section
16 and the rules and regulations thereunder. An Agreement may provide for shares
of Common Stock  to be  delivered or withheld  having an  aggregate Fair  Market
Value in excess of the minimum amount required to be withheld, but not in excess
of the amount determined by applying the holder's maximum marginal tax rate. Any
fraction  of a share of Common Stock which  would be required to satisfy such an
obligation shall be disregarded  and the remaining amount  due shall be paid  in
cash by the holder.
 
    6.6   RESTRICTIONS ON SHARES.  Each award made hereunder shall be subject to
the requirement that  if at any  time the Company  determines that the  listing,
registration  or qualification  of the  shares of  Common Stock  subject to such
award upon any securities exchange or under any law, or the consent or  approval
of  any governmental  body, or the  taking of  any other action  is necessary or
desirable as  a condition  of, or  in connection  with, the  delivery of  shares
thereunder,   such  shares   shall  not   be  delivered   unless  such  listing,
registration, qualification, consent, approval or  other action shall have  been
effected  or obtained, free of any conditions not acceptable to the Company. The
Company  may  require  that  certificates  evidencing  shares  of  Common  Stock
delivered pursuant to any award made hereunder bear a legend indicating that the
sale,  transfer or other disposition thereof  by the holder is prohibited except
in compliance with the  Securities Act of  1933, as amended,  and the rules  and
regulations thereunder.
 
    6.7    ADJUSTMENT.    In  the event  of  any  stock  split,  stock dividend,
recapitalization, reorganization, merger,  consolidation, combination,  exchange
of  shares, liquidation, spin-off  or other similar  change in capitalization or
event, or any distribution to holders of Common Stock other than a regular  cash
dividend,  the number  and class  of securities  available under  this Plan, the
number and  class of  securities  subject to  each  outstanding option  and  the
purchase  price per  security, the terms  of each  outstanding Performance Share
shall be appropriately adjusted by the Committee, such adjustments to be made in
the case of outstanding  options and SARs without  an increase in the  aggregate
purchase  price or base price. The decision  of the Committee regarding any such
adjustment shall be final, binding and conclusive. If any such adjustment  would
result  in  a fractional  security  being (i)  available  under this  Plan, such
fractional security shall be disregarded, or (ii) subject to an award under this
Plan, the Company shall  pay the holder  of such award,  in connection with  the
first  vesting,  exercise or  settlement of  such  award, in  whole or  in part,
occurring after such adjustment, an amount in cash determined by multiplying (i)
the fraction of  such security (rounded  to the nearest  hundredth) by (ii)  the
excess,  if  any, of  (A)  the Fair  Market Value  on  the vesting,  exercise or
settlement date over (B) the exercise or base price, if any, of such award.
 
                                     IV-11
<PAGE>
    6.8  CHANGE IN CONTROL.
 
    (a) Notwithstanding any  provision in  this Plan  or any  Agreement, in  the
event  of  a Change  in  Control, (i)  all  outstanding options  and  SARS shall
immediately become exercisable in full,  (ii) the Restriction Period  applicable
to  any outstanding  Restricted Stock Award  shall lapse,  (iii) the Performance
Period applicable to any outstanding  Performance Share Award shall lapse,  (iv)
the  Performance Measures applicable  to any outstanding  Restricted Stock Award
(if any) and to any  outstanding Performance Share Award  shall be deemed to  be
satisfied at the target level.
 
    (b) "Change in Control" shall be deemed to have occurred as of:
 
        (1)  the closing date of the restructuring of the Company as a result of
    merger, consolidation,  takeover or  reorganization  unless at  least  sixty
    percent  (60%) of the members  of the Board of  Directors of the Corporation
    resulting from such merger,  consolidation, takeover or reorganization  were
    members of the Incumbent Board; or
 
        (2)  the occurrence  of any  other event that  is designated  as being a
    "Change in Control"  by a majority  vote of the  directors of the  Incumbent
    Board who are not also employees of the Company.
 
    6.9   NO  RIGHT OF PARTICIPATION  OR EMPLOYMENT.   No person  shall have any
right to  participate  in  this Plan.  Neither  this  Plan nor  any  award  made
hereunder  shall confer upon any person any right to continued employment by the
Company, any Subsidiary or any affiliate of the Company or affect in any  manner
the  right of  the Company, any  Subsidiary or  any affiliate of  the Company to
terminate the employment of any person at any time without liability hereunder.
 
    6.10   RIGHTS  AS  STOCKHOLDER.    No person  shall  have  any  right  as  a
stockholder  of the Company with respect to  any shares of Common Stock or other
equity security of the Company which is subject to an award hereunder unless and
until such person becomes a stockholder of record with respect to such shares or
Common Stock or equity security.
 
    6.11   GOVERNING LAW.   This  Plan,  each award  hereunder and  the  related
Agreement,  and all determinations  made and actions  taken pursuant thereto, to
the extent not otherwise governed by the Code or the laws of the United  States,
shall  be governed by the laws of the  State of Iowa and construed in accordance
therewith without giving effect to principles of conflicts of laws.
 
    6.12  EFFECTIVE DATE.   This Plan shall become  effective as of November  1,
1995,  subject to subsequent approval of the  shareholders of the Company at the
1996 annual shareholders meeting. Any grants of options, SAR's, Stock Awards  or
Performance  Share Awards  by the  Board or Committee  between July  1, 1995 and
October 31, 1995 shall be  considered to have been  granted under this Plan  and
shall  be governed  by this  Plan's terms  and conditions.  If this  Plan is not
approved by the  shareholders of  the Company  at the  1996 annual  shareholders
meeting, all awards granted hereunder shall be null and void.
 
                                     IV-12
<PAGE>
                                    PART II.
                     INFORMATION NOT REQUIRED IN PROSPECTUS
 
ITEM 20.  INDEMNIFICATION OF DIRECTORS AND OFFICERS.
 
    Sections  490.850-490.855 and 490.857  of the Iowa  Business Corporation Act
("IBCA")  permit  corporations  organized  thereunder  to  indemnify  directors,
officers,  employees and  agents against liability  under certain circumstances.
The  Articles  of  Incorporation  and   the  Bylaws  of  Holdings  provide   for
indemnification  of directors, officers, employees and agents to the full extent
provided by the IBCA. The Articles  of Incorporation and the Bylaws of  Holdings
state  that the indemnification provided therein  shall not be deemed exclusive.
Holdings may purchase and maintain insurance on  behalf of any person who is  or
was   a  director,  officer,  employee  or  agent  of  the  Company  or  another
corporation, partnership, joint venture, trust  or other enterprise against  any
expense,  liability or  loss, whether  or not Holdings  would have  the power to
indemnify such person against  such expense, liability or  loss under the  IBCA.
Pursuant  to Section 490.857 of  the IBCA and its  Articles of Incorporation and
Bylaws,  Holdings  maintains  directors'   and  officers'  liability   insurance
coverage. Holdings has also entered into indemnification agreements with certain
directors and officers, and expects to enter into similar agreements with future
directors  and  officers,  to  further assure  such  persons  indemnification as
permitted by Iowa law.
 
    As permitted by Section 490.832 of  the IBCA, the Articles of  Incorporation
of  Holdings provide that no director shall  be personally liable to Holdings or
its shareholders  for  monetary  damages  for breach  of  fiduciary  duty  as  a
director,  except for liability:  (i) for any  breach of the  director's duty of
loyalty to Holdings or its shareholders, (ii) for acts or omissions not in  good
faith  or which  involve intentional misconduct  or a knowing  violation of law,
(iii)  under  Section  490.833  of  the  IBCA  (relating  to  certain   unlawful
distributions  to  shareholders)  or (iv)  for  any transaction  from  which the
director derived an improper personal benefit.
 
ITEM 21.  EXHIBITS.
 
    The following exhibits are being filed herewith:
 
   
<TABLE>
<CAPTION>
   EXHIBIT
   NUMBER                                              DESCRIPTION OF DOCUMENT
- -------------  --------------------------------------------------------------------------------------------------------
<S>            <C>
        2(a)   Agreement and Plan of Exchange dated as of January 24, 1996 (attached as Annex I).
        3(a)   Restated Articles of Incorporation of MidAmerican Energy Holdings Company (attached as Annex II).
        3(b)   Bylaws of MidAmerican Energy Holdings Company.*
        4      Rights of MidAmerican Energy Holdings Company Common Shareholders (included in 3(a)).
        5(a)   Opinion re Legality of Sidley & Austin.*
        5(b)   Opinion re Legality of LeBoeuf, Lamb, Greene & MacRae, L.L.P.*
        8      Opinion re Tax Matters of Sidley & Austin.*
       10(a)   MidAmerican Energy Company 1995 Long-Term Incentive Plan (attached as Annex IV).
       23(a)   Consents of Sidley & Austin (included in Exhibits 5 and 8).
       23(b)   Consent of LeBoeuf, Lamb, Greene & MacRae, L.L.P. (included in Exhibit 5(b)).
       23(c)   Consent of Arthur Andersen LLP.*
       23(d)   Consent of Deloitte & Touche LLP*
       99(a)   Form of Proxy/Direction.*
       99(b)   Consents of Persons to be Directors of MidAmerican Energy Holdings Company at the Effective Time of the
                Share Exchange.*
</TABLE>
    
 
- ------------------------
 
   
 * Previously filed.
    
 
                                      II-1
<PAGE>
ITEM 22.  UNDERTAKINGS.
 
    The undersigned registrant hereby undertakes:
 
        (1) To file, during any period in which offers or sales are being  made,
    a post-effective amendment to this registration statement.
 
           (i)  To include  any prospectus required  by Section  10(a)(3) of the
       Securities Act of 1933;
 
           (ii) To reflect in the prospectus  any facts or events arising  after
       the  effective date  of the  registration statement  (or the  most recent
       post-effective  amendment  thereof)   which,  individually   or  in   the
       aggregate, represent a fundamental change in the information set forth in
       the registration statement;
 
          (iii)  To include any material information with respect to the plan of
       distribution not previously  disclosed in the  registration statement  or
       any material change to such information in the registration statement;
 
    PROVIDED,  HOWEVER, that paragraphs  (1)(i) and (1)(ii) do  not apply if the
registration statement is on Form S-3 or Form S-8, and the information  required
to be included in a post-effective amendment by those paragraphs is contained in
periodic reports filed by the registrant pursuant to Section 13 or Section 15(d)
of the Securities Exchange Act of 1934 that are incorporated by reference in the
registration statement.
 
        (2) That, for purposes of determining any liability under the Securities
    Act  of  1933, each  filing of  the registrant's  annual report  pursuant to
    section 13(a) or section 15(d) of  the Securities Exchange Act of 1934  that
    is  incorporated by reference in the  registration statement shall be deemed
    to be  a  new registration  statement  relating to  the  securities  offered
    therein, and the offering of such securities at that time shall be deemed to
    be the initial BONA FIDE offering thereof.
 
        (3)  To  respond to  requests for  information  that is  incorporated by
    reference into the prospectus pursuant to Items  4, 10(b), 11 or 13 of  this
    form,  within one business day  of receipt of such  request, and to send the
    incorporated documents by first  class mail or  other equally prompt  means.
    This  includes information  contained in  documents filed  subsequent to the
    effective date of the registration statement through the date of  responding
    to the request.
 
        (4)  To supply  by means of  a post-effective  amendment all information
    concerning a transaction, and the  company being acquired involved  therein,
    that  was not the subject of and included in the registration statement when
    it became effective.
 
        (5) To remove from registration  by means of a post-effective  amendment
    any  shares  of Holdings  Common Stock  which  are not  issued in  the Share
    Exchange.
 
    Insofar as indemnification for liabilities arising under the Securities  Act
of  1933 may be permitted to directors,  officers and controlling persons of the
registrant pursuant to the  provisions described in Item  20, or otherwise,  the
registrant  has been advised that in the  opinion of the Securities and Exchange
Commission such indemnification is against public policy as expressed in the Act
and is, therefore, unenforceable. In the event that a claim for  indemnification
against  such liabilities (other than the  payment by the registrant of expenses
incurred or paid by a director, officer or controlling person of the  registrant
in the successful defense of any action, suit or proceeding) is asserted by such
director,  officer or controlling person in connection with the securities being
registered, the registrant will, unless in the opinion of its counsel the matter
has been settled  by controlling  precedent, submit  to a  court of  appropriate
jurisdiction  the question whether such indemnification  by it is against public
policy as expressed in the Act and will be governed by the final adjudication of
such issue.
 
                                      II-2
<PAGE>
                                   SIGNATURES
 
   
    Pursuant  to the requirements of the  Securities Act of 1933, the registrant
has duly caused this Pre-Effective Amendment No. 1 to the Registration Statement
on Form  S-4 to  be signed  on its  behalf by  the undersigned,  thereunto  duly
authorized, in the City of Des Moines, State of Iowa as of March 13, 1996.
    
 
                                       MIDAMERICAN ENERGY HOLDINGS COMPANY
 
                                       By       /s/ RUSSELL E. CHRISTIANSEN
 
                                          --------------------------------------
                                                 Russell E. Christiansen
                                                         CHAIRMAN
 
   
    Pursuant   to  the  requirements  of  the   Securities  Act  of  1933,  this
Pre-Effective Amendment No. 1 to the Registration Statement on Form S-4 has been
signed below by the following persons  in the capacities indicated, as of  March
13, 1996.
    
 
<TABLE>
<CAPTION>
SIGNATURE AND TITLE
- --------------------------------------------------------
 
<S>                                                       <C>
                  /s/ RUSSELL E. CHRISTIANSEN
      --------------------------------------------                         /s/ STANLEY J. BRIGHT
                Russell E. Christiansen                         --------------------------------------------
                 CHAIRMAN AND DIRECTOR                                       Stanley J. Bright
             (PRINCIPAL EXECUTIVE OFFICER)                                 PRESIDENT AND DIRECTOR
 
                        /s/ LANCE E. COOPER
      --------------------------------------------
                    Lance E. Cooper
              VICE PRESIDENT AND TREASURER
      (PRINCIPAL FINANCIAL AND ACCOUNTING OFFICER)
</TABLE>
 
                                      II-3
<PAGE>
                               INDEX TO EXHIBITS
 
   
<TABLE>
<CAPTION>
  EXHIBITS                                                                                                         PAGE
- -------------                                                                                                    ---------
<S>            <C>                                                                                               <C>
        2(a)   Agreement and Plan of Exchange dated as of January 24, 1996 (attached as Annex I).
        3(a)   Restated Articles of Incorporation of MidAmerican Energy Holdings Company (attached as Annex
                II).
        3(b)   Bylaws of MidAmerican Energy Holdings Company.*
        4      Rights of MidAmerican Energy Holdings Company Common Shareholders (included in 3(a)).
        5(a)   Opinion re Legality of Sidley & Austin.*
        5(b)   Opinion re Legality of LeBoeuf, Lamb, Greene & MacRae, L.L.P.*
        8      Opinion re Tax Matters of Sidley & Austin.*
       10(a)   MidAmerican Energy Company 1995 Long-Term Incentive Plan (attached as Annex IV).
       23(a)   Consents of Sidley & Austin (included in Exhibits 5 and 8).
       23(b)   Consent of LeBoeuf, Lamb, Greene & MacRae, L.L.P. (included in Exhibit 5(b)).
       23(c)   Consent of Arthur Andersen LLP.*
       23(d)   Consent of Deloitte & Touche LLP*
       99(a)   Form of Proxy/Direction.*
       99(b)   Consents of Persons to be Directors of MidAmerican Energy Holdings Company at the Effective Time
                of the Share Exchange.*
</TABLE>
    
 
- ------------------------
   
 * Previously filed.
    


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