IOWA-ILLINOIS GAS AND ELECTRIC COMPANY

      SUPPLEMENTAL RETIREMENT PLAN FOR DESIGNATED OFFICERS

                          October 1993


  I.   ESTABLISHMENT

       Iowa-Illinois Gas and Electric Company, an Illinois
       corporation, (the "Company") hereby amends and restates
       the Company's Supplemental Retirement Plan for Principal
       Officers as the Company's Supplemental Retirement Plan for
       Designated Officers (the "Plan"), effective as of July 1,
       1993.

  II.  PURPOSE

       The purpose of the Plan is to enable the Company and its
       subsidiaries to attract, retain, and motivate persons of
       outstanding competence, and to provide appropriate
       supplemental retirement and survivor benefits to
       Designated Officers of the Company.

 III.  CONSTRUCTION

       Section 3.1.  Definitions.  Whenever used herein, the
       following terms shall have the respective meanings set
       forth below:

       (a)  "Board" means the Board of Directors of the Company.

       (b)  "Cause" means a Participant's discharge from the
            employment of the Company because such Participant
            willfully engages in conduct, or lack thereof, that
            is demonstrably and materially injurious to the
            Company, its business reputation of financial
            structure, but shall not include a Qualifying
            Termination. Determination of "Cause" shall be made
            by the Committee in the exercise of good faith and
            reasonable judgement and approved by the Board.

       (c)  "Change in Control" means either:

            (i)  Approval by the shareholders of the Company of a
                 plan of merger, consolidation, or reorganization
                 of the Company unless at least sixty percent
                 (60%) of the members of the board of directors
                 of the corporation resulting from such merger,
                 consolidation, or reorganization were members of
                 the Incumbent Board; or

            (ii) 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.

       (d)  "Change-in-Control Benefit" means:

            (i)  For a Participant who has made an effective
                 Transitional Election, a Normal Supplemental
                 Retirement Benefit reduced at the rate of four
                 percent (4%) for each full year that, on the
                 effective date of a Qualifying Termination, the
                 Participant's age is less than sixty-three (63)
                 years; provided, however, that the Change-in-
                 Control Benefit shall in all cases be no less
                 than thirty percent (30%) of a Normal
                 Supplemental Retirement Benefit;

            (ii) For all Participants that have not made an
                 effective Transitional Election (including all
                 individuals who first become Participants
                 following the Effective Date), a pro rata
                 portion of a Normal Supplemental Retirement
                 Benefit, based upon the ratio of:  (a) the
                 Participant's years of service (to the full day)
                 as a Designated Officer or Principal Officer on
                 the effective date of his or her Qualifying
                 Termination to (b) the number of years (to the
                 full day) from the day the Participant became a
                 Designated Officer or Principal Officer to the
                 day such Participant would have otherwise
                 reached his or her Normal Retirement Date;
                 provided, however, that the Change-In-Control
                 Benefit shall in all cases be no less than
                 thirty percent (30%) of a Normal Supplemental
                 Retirement Benefit.

       (e)  "Code" means the Internal Revenue code of 1986, as
            amended.

       (f)  "Committee" means an Administrative Committee
            comprised of Company employees selected by the
            President of the Company and approved by the Board to
            administer the Plan pursuant to Article IV herein.

       (g)  "Designated Officer" is an officer of the Company or
            its subsidiaries who has been authorized by the Board
            to participate in the Plan.

       (h)  "Disability" means a Termination of Services
            resulting from a total and permanent disability of a
            Participant, within the meaning of Code Section
            22(e)(3), as a result of a medically determinable
            physical or mental impairment which renders such
            Participant unable to engage in any substantial
            gainful employment, and which can be expected to be
            of indefinite duration.  Such Disability shall be
            determined by the Committee in the exercise of good
            faith and reasonable judgment in reliance on
            competent medical advice from one or more qualified
            individuals selected by the Committee.

       (i)  "Disability Benefit" means, for such Participant, the
            Normal Supplemental Retirement Benefit computed as
            though the Participant were age sixty-five (65),
            regardless of his or her actual age on the date of
            Termination of Services due to such Disability.

       (j)  "Early Retirement Supplemental Benefit" means:

            (i)  For each Participant who has made an effective
                 Transitional Election, a Normal Supplemental
                 Retirement Benefit reduced at the rate of four
                 percent (4%) for each full year that, on the
                 effective date of Termination of Services, such
                 Participant's age is less that sixty-five (65)
                 years, with such rate of reduction extending
                 down to age fifty-five (55).  An Early
                 Retirement Supplemental Benefit will not be
                 available to any Participant whose Termination
                 of Services occurs prior to attaining age five
                 (55) years;

            (ii) For a Participant who has not made an effective
                 Transitional Election (including all individuals
                 that first became Participants following the
                 Effective Date), a pro rata portion of a Normal
                 Supplemental Retirement Benefit, based on the
                 ratio of:  (a) the Participant's years of
                 service (to the full day) as a Designated
                 Officer or Principal Officer on the effective
                 day of the Termination of Services {but
                 excluding all years of service as a Designated
                 Officer or Principal Officer prior to the
                 Participant reaching the age of forty-five to
                 (b) the number of years (to the full day) from
                 the day the Participant became a Designated
                 Officer or Principal Officer {but excluding all
                 years of service as a Designated Officer or
                 Principal Officer prior to the Participant
                 reaching the age of forty-five (45)} to the day
                 the Participant would have otherwise reached his
                 or her Normal Retirement.

       (k)  "Early Retirement" means, for each Participant, the
            Termination of Services of such Participant other
            than because of death, Disability, Cause, or
            Qualifying Termination, but prior to such
            Participant's Normal Retirement.

       (l)  "Early Retirement Date" means the first day of the
            month next following the date of Early Retirement.

       (m)  "Effective Date" means April 26, 1991.

       (n)  "ERISA" means the Employee Retirement Income Security
            Act of 1974, as amended from time to time, or any
            successor thereto.

       (o)  "Incumbent Board" means the members of the Board on
            April 26, 1991.  For this purpose, an individual who
            becomes a member of the Board subsequent to April 26,
            1991 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.

       (p)  "Normal Supplemental Retirement Benefit" means the
            annual benefit provided under the Plan upon a
            Termination of Services on or following a
            Participant's Normal Retirement Date, in the amount
            of sixty-five percent (65%) of such Participant's
            highest rate of annual Total Cash Compensation in
            effect at any time during the three (3) years
            immediately prior to such Termination of Services
            reduced by the sum of:

            (i)  the annual benefits provided to such Participant
                 under the Company's (tax qualified) Pension
                 Plan; and

            (ii) tax qualified and non tax-qualified pension type
                 retirement plan benefits payable to such
                 Participant by other employers of such
                 converting such benefits to an actuarially
                 equivalent amount as provided in the Company's
                 (tax qualified) Pension Plan, as determined by
                 the Committee in the exercise of good faith and
                 reasonable judgment.

       (q)  "Normal Retirement" means, for each Participant, the
            Termination of Services of such Participant upon
            attaining age sixty-five (65) years.

       (r)  "Normal Retirement Date" means the first day of the
            month next following the date of Normal Retirement.

       (s)  "Participant" means an officer of the Company or its
            subsidiaries who has been approved by the Board, and
            any retired individual who has a vested accrued
            benefit under the Plan as specified in Article V.

       (t)  "Plan Year" means the calendar year beginning
            January 1 and ending December 31.

       (u)  "Principal Officer" means a member of the Chairman's
            Advisory Committee of the Company prior to July 1,
            1993.

       (v)  "Qualifying Termination" means a Termination of
            Services of a Participant within twenty-four (24)
            full calendar months immediately after a Change in
            Control either:  (i) involuntarily for any reason or
            (ii) voluntarily, provided that such Participant has
            furnished six (6) full months prior written notice of
            his or her intent to voluntarily terminate employment
            to the President of the corporation resulting from
            such Change in Control.

       (w)  "Rabbi Trust" means a grantor trust, within the
            meaning of Sections 671-678 of the Code, established
            by the Company for the benefit of the Participants,
            both active and retired, and the Participants' desig-
            nated beneficiaries, as specified in Article VIII.

       (x)  "Survivor's Benefit" means the benefit payable to a
            Participant's designated beneficiary or estate under
            the Plan as specified in section 6.5 in the event of
            such Participant's death.  The annual amount of the
            Survivor's Benefit shall equal the annual amount of
            such Participant's Normal Retirement Benefit
            (determined as if such Participant were age sixty-
            five (65) and without regard to such Participant's
            actual age at the time of death or the age of his or
            her designated beneficiary.

       (y)  "Termination of Services" means the severing of a
            Participant's employment with the Company for any
            reason.

       (z)  "Total Cash Compensation" means the amount payable to
            a Participant by the Company as annual salary,
            without regard to deferrals.

       (aa) "Transitional Election" means a statement signed by a
            Principal Officer, who was a Participant immediately
            prior to the Effective Date, and delivered to the
            President of the Company prior to February 1, 1994
            which expresses an irrevocable election by the
            Participant to be eligible for the benefits provided
            by the Plan (which, in most respects, provide
            benefits that are similar to those provided prior to
            the Plan's April 26, 1991 amendment and restatement). 
            Designated Officers or Principal Officers who become
            Participants after the Effective Date shall not be
            allowed to make a Transitional Election.

       Section 3.2.  Gender and Number.  Except when otherwise
       indicated by the context, any masculine term used herein
       also shall include the feminine; the plural shall include
       the singular; and the singular shall include the plural.

       Section 3.3.  Severability.  In the event any provision of
       the Plan shall be held illegal or invalid for any reason,
       the illegality or invalidity shall not affect the
       remaining parts of the Plan; and the Plan shall be
       construed and enforced as if the illegal or invalid
       provision had not been included.

  IV.  ADMINISTRATION

       Section 4.1.  The Committee.  The Plan shall be
       administered within the guidelines contained in this
       Article IV by an Administrative Committee comprised of
       Company employees selected by the President of the Company
       and approved by the Board.  The Committee may delegate the
       responsibility of performing ministerial acts to such
       administrative agents as it deems advisable or desirable
       to carry out the purpose of the Plan.

       Section 4.2.  Authority of the Committee.  Subject to
       ratification by the Board, the Committee shall have the
       power to construe and interpret the Plan and any agreement
       or instrument entered into hereunder; to prescribe, amend,
       or waive rules and regulations for the Plan's
       administration; and to make any other determination which
       may be necessary or advisable for the Plan's
       administration.  The Committee may correct any defect or
       supply any omission or reconcile any inconsistency in the
       Plan in the manner and to the extent reasonable to effect
       its purpose.

       The Company may elect to insure the lives of Participants;
       in such case, Participants must agree to undergo physical
       examinations and otherwise cooperate in obtaining such
       insurance as a condition precedent to participation in the
       Plan.  Any such life insurance policies shall be owned by
       and be considered a general asset of the Company.  Subject
       to Section 7.2, no Participant or beneficiary shall have
       any rights to or interest in or shall be entitled to any
       benefits under such policies.

       Section 4.3.  Decisions Binding.  All determinations and
       decisions made by the Committee pursuant to the provisions
       of the Plan, as ratified by the Board, and all related
       orders or resolutions of the Board shall be final,
       conclusive, and binding on all persons, including the
       Company, its shareholders, employees, the Participants and
       their estates and designated beneficiaries.


       The Board shall have the full power to amend or terminate
       the Plan at any time prior to the occurrence of a Change
       in Control, as further described in article VII herein.

   V.  ELIGIBILITY AND PARTICIPATION

       Section 5.1.  Participation.  Upon approval by the
       Board,Designated Officers shall automatically become
       Participants under the Plan.  Retired individuals who have
       a vested accrued benefit under the Plan will also be
       considered to be Participants.

       Section 5.2.  No Employment Guarantee.  Neither this Plan
       nor any action taken hereunder shall be construed as
       giving a Participant the right to be retained as an
       employee of the Company for any period.

  VI.  BENEFITS

       Section 6.1.  Benefits Upon Normal Retirement.  Upon a
       Participant's Normal Retirement, the Company shall pay to
       such Participant, as compensation for services rendered
       prior to such date, the Normal Supplemental Retirement
       Benefit in equal monthly installments commencing on the
       Normal Retirement Date and continuing on the first day of
       each month thereafter during the lifetime of such
       Participant.

       Section 6.2.  Benefits Upon Early Retirement.  Upon a
       Participant's Early Retirement, the Company shall pay to
       the Participant, as compensation for services rendered
       prior to such date, an Early Retirement Supplemental
       Benefit in equal monthly installments commencing on the
       later of (i) the Participant's Early Retirement Date; or
       (ii) the first day of the month next following the date on
       which such Participant attains age fifty-five (55); and,
       in all cases, continuing on the first day of each month
       thereafter during the lifetime of such Participant.

       Section 6.3.  Benefits Upon Disability.  Upon a
       Participant's Termination of Services for Disability, the
       Company shall pay to the Participant, as compensation for
       services rendered prior to such date, a Disability Benefit
       in equal monthly installments commencing on the first day
       of the month next following the date of Termination of
       Services due to such Disability and continuing on the
       first day of each month thereafter during the lifetime of
       such Participant.

       Section 6.4.  Benefits Upon a Qualifying Termination. 
       After a Participant's Qualifying Termination, the Company
       shall pay to the Participant, as compensation for services
       rendered prior to such date, his or her Change-in-Control
       Benefit in equal monthly installments commencing on the
       later of:  (i) the first day of the month next following
       the effective date of such Qualifying Termination; or (ii)
       the first day of the month next following the date that
       the Participant attains age fifty-five (55); and, in all
       cases, continuing on the first day of each month
       thereafter during the lifetime of such Participant.

       Section 6.5.  Benefits Upon Death.  Upon a Participant's
       death, the Company shall pay to such Participant's
       designated beneficiary or estate, as appropriate, the
       following Survivor's Benefit;

       (a)  Death Prior to Commencement of Benefits.  If a
            Participant dies prior to commencement of the payment
            of any benefit hereunder, the Company shall pay to
            such Participant's designated beneficiary or estate
            the Survivor's Benefit in one hundred eighty (180)
            equal monthly installments commencing on the first
            day of the month following such date of death and
            receipt of a death certificate by the Company, and
            continuing on the first day of each month thereafter
            until the one hundred eighty (180) payments have been
            made.

       (b)  Death After Commencement of Benefits.  If a
            Participant dies after commencement of the payment of
            any benefit hereunder, the Company shall pay to the
            Participant's surviving spouse two-thirds of the
            Survivor's Benefit commencing on the first day of the
            month following such date of death and receipt of a
            death certificate by the Company and continuing on
            the first day of each month thereafter for the
            remaining lifetime of the surviving spouse.

       (c)  Payment by the Company of the benefit in section 6.5
            (a) or (b) shall relieve the Company of the
            obligation to pay a Normal Supplemental Retirement
            Benefit, an Early Retirement Supplemental Benefit, a
            Disability Benefit, a Change-in-Control Benefit, or
            any other benefit which the Participant might have
            otherwise received under the Plan.

       (d)  In the event a Participant dies, without a surviving
            spouse, after commencement of the payment of any
            benefits hereunder, all benefits hereunder shall
            cease to be paid as of the date of death, and the
            Company shall have no further obligation to the
            Participant (or the Participant's estate and/or
            beneficiaries) for purposes of this Plan.

       Section 6.6.  Forfeiture Upon Termination for Cause.  Upon
       a Participant's Termination of Services for Cause, such
       Participant shall immediately forfeit all rights and
       benefits provided under the Plan, and the Company shall
       have no further obligation to such Participant under the
       Plan.

       Section 6.7.  General Payout Restrictions.  No benefits
       shall be paid under this Plan prior to the actual
       Termination of Services of a Participant.

 VII.  INDIVIDUAL ACCOUNTS AND THE RABBI TRUST

       Section 7.1.  Establishment of a Rabbi Trust.  After the
       Effective Date, the Company shall establish a revocable
       Rabbi Trust for the benefit of the Participants, both
       active and retired.  The Rabbi Trust shall have an
       independent trustee, selected by the Company, and, it
       shall contain restrictions on the Company's ability to
       amend or terminate any of the terms thereof after the
       Rabbi Trust shall become irrevocable as provided in
       Section 7.2.

       All assets held in the Rabbi Trust (while revocable or
       irrevocable) shall at all times be specifically subject to
       the claims of the Company's general creditors in the event
       of bankruptcy or insolvency; such terms shall be
       specifically defined within the provisions of the Rabbi
       Trust, along with a required procedure for notifying the
       Trustee of any such bankruptcy or insolvency.

       Section 7.2.  Causing the Trust to Become Irrevocable. 
       The instrument establishing the Rabbi Trust shall provide
       that the Rabbi Trust shall be revocable until the
       occurrence of either of the following:

       (i)  A Change in Control; or

       (ii) A majority vote by the Incumbent Board to make the
            Rabbi Trust irrevocable.

       Section 7.3.  Payment of Benefits from the Trust.  The
       Company shall be primarily obligated to pay all benefits
       of Participants under the Plan, whether the Rabbi Trust is
       revocable or irrevocable at the time.  In the event the
       Company fails to fulfill any such obligation hereunder in
       a timely manner, the Trustee shall be empowered, under the
       terms of the Rabbi Trust, to either cash in the related
       life insurance policies or to borrow against the policies,
       to the extent necessary to pay past due benefits directly
       from the Trust.

VIII.  BENEFICIARY DESIGNATION

       Section 8.1.  Designation of Beneficiary.  Each 
       Participant shall be entitled to designate one or more
       beneficiaries by filing a signed, written notice of such
       designation with the Committee, in a form as the Committee
       may prescribe.  A Participant may revoke or modify a
       beneficiary designation at any time by filing a new
       beneficiary designation form with the Committee.

       Section 8.2.  Payment to a Participant's Estate.  A
       Participant's beneficiary designation shall be deemed
       automatically revoked in the event all designated
       beneficiaries predecease such Participant or, if the sole
       beneficiary is such Participant's spouse, in the event of
       dissolution of marriage.  In such event, or in the event a
       Participant does not designate a beneficiary, the benefits
       under Section 6.5(a) shall be paid to such Participant's
       estate.

  IX.  MISCELLANEOUS

       Section 9.1.  Unfunded Plan.  This Plan is intended to be
       an unfunded plan maintained primarily to provide benefits
       to a "select group of management or highly compensated
       employees" within the meaning of Sections 201, 301, and
       401 of ERISA and, therefore, is further intended to be
       exempt from the provisions of Parts 2, 3, and 4 of Title I
       of ERISA.  Accordingly, the Committee may terminate the
       Plan for any or all Participants in order to achieve and
       maintain this intended result, provided that previously
       accrued benefits hereunder shall not be reduced or
       otherwise adversely affected without the written consent
       of all affected Participants.

       Section 9.2.  Withholding.  The Company shall have the
       right to require Participants to remit to the Company an
       amount sufficient to satisfy Federal, state, and local tax
       withholding tax requirements, or to deduct from any or all
       payments made pursuant to the Plan amounts sufficient to
       satisfy such withholding tax requirements.

       Section 9.3.  Costs of the Plan.  All costs of
       implementing and administering the Plan shall be borne by
       the Company.

       Section 9.4.  Nontransferability.  Neither the
       Participants nor any designated beneficiary shall have the
       right to sell, assign, transfer, or otherwise convey the
       right to receive any payment hereunder; nor shall any such
       payment be subject to attachment, garnishment, levy,
       pledge, bankruptcy, or any other manner or kind of
       execution in connection with any claim against the
       Participants or any designated beneficiary thereof.

       Section 9.5.  Successors.  All obligations of the Company
       under the Plan shall be binding upon and inure to the
       benefit of any successor to the Company, whether the
       existence of such successor is the direct or indirect
       result of a merger, consolidation, or reorganization
       involving the Company or the purchase or other acquisition
       of all or substantially all of the business and/or assets
       of the Company.

       Section 9.6.  Address of Participant or Beneficiary.  Each
       Participant shall keep the Company apprised of his or her
       current address and that of any designated beneficiary
       during his or her participation in the Plan.  Upon the
       death of a Participant, any beneficiaries entitled to
       receive benefit payment under the Plan shall keep the
       Company apprised of their current address until the entire
       amount to be distributed has been paid.

       Section 9.7.  Applicable Law.  To the extent not preempted
       by Federal law, the Plan shall be governed by and
       construed in accordance with the laws of the state of
       Illinois.