Document:

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                                                                   Exhibit 10.13

                              EMPLOYMENT AGREEMENT

     AGREEMENT made by and between ConAgra, Inc., a Delaware corporation
("Company"), and Bruce Rohde ("Executive") effective as of the 26th day of
August, 1996.

     The Board of Directors of the Company ("Board") has determined that it is
in the best interests of the Company to obtain and retain the services of
Executive and to induce Executive to leave his current position in order to
accept a position with the Company. In order to accomplish this objective, the
Board has caused the Company to enter into this Agreement.

     NOW, THEREFORE, it is agreed as follows:

     1.     Term of Employment. Executive's term of employment under this
            Agreement shall commence on August 26, 1996 ("Effective Date") and
            shall continue in accordance with the terms hereof until a
            termination of Executive's employment.

     2.     Position and Duties.

     2.1    Position. The Company employs Executive as President of the Company.
            The Board has elected Executive as Vice Chairman of the Board and a
            member of the Executive Committee of the Board. Executive shall have
            the customary powers, responsibilities and authorities of presidents
            of corporations of the size, type and nature of the Company.
            Executive's office shall be at the principal executive offices of
            the Company in Omaha, Nebraska.

     2.2    Duties. Executive shall devote his full working time and efforts to
            the performance of the duties outlined above. Executive may,
            consistent with his duties hereunder, engage in charitable and
            community affairs, manage his personal investments and (subject to
            the prior approval of the Board) serve on the board of directors of
            other companies.

     3.     Compensation.

     3.1    Base Salary. The Company shall pay Executive a Base Salary ("Base
            Salary") at the rate of $750,000 per annum. The base salary shall be
            payable in accordance with the ordinary payroll practices of the
            Company. Executive's rate of Base Salary shall be reviewed for
            possible increases by the Board at least annually.

     3.2    Annual Incentive Bonus. Executive shall be entitled to receive an
            annual bonus under the Company's Executive Annual Incentive Plan
            ("Annual Bonus Plan"), or any successor plan subsequently available
            to senior executive officers. Executive's target bonus opportunity
            under the Annual Bonus Plan shall not be less than 80% of
            Executive's Base Salary. The performance goals with respect to such
            target bonus opportunity shall be established annually by the Board
            on a basis consistent with the establishment of such performance
            goals for other senior executive officers of the Company.

     3.3    Long Term Senior Management Incentive Plan. Executive shall
            participant in Company's Long Term Senior Management Incentive Plan
            ("LTSMIP"). Executive shall receive three units in the LTSMIP for
            fiscal year 1997; provided, any payments to Executive for fiscal
            1997 shall be prorated and based on Executive's employment from the
            Effective Date to the end of the fiscal year. Executive's
            participation in the LTSMIP shall increase (i) to four units for
            fiscal year 1998 and (ii) to six units at such time as Executive
            becomes Chief Executive Officer of ConAgra.

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                                                       Exhibit 10.13 (continued)

     3.4    Restricted Stock Grant. Pursuant to the Company's 1995 Stock Plan,
            the Human Resources Committee of the Board ("Committee") has granted
            to Executive an award of 100,000 restricted shares of Company common
            stock on the Effective Date. Such shares shall vest at the rate of
            10% on the last day of each fiscal year of the Company, with the
            first 10% vesting on the last day of fiscal 1997.

     3.5    Stock Option Grant. Pursuant to the Company's 1995 Stock Plan, the
            Committee has granted to Executive on the Effective Date options to
            acquire 100,000 shares of Company common stock. The exercise price
            of such options is $43.00 per share, the closing price of the
            Company's common stock on the New York Stock Exchange on the date of
            grant. Such options shall vest and become exercisable at the rate of
            20% per year on the last day of each fiscal year of the Company,
            with the first 20% becoming vested and exercisable on the last day
            of fiscal 1997.

     4.     Other Benefits.

     4.1    Employee Benefit Plans. The Company shall provide Executive with
            coverage under all employee benefit programs, plans and practices,
            in accordance with the terms thereof, which the Company makes
            available to senior executive officers.

     4.2    Pension Credit. At such time as Executive becomes Chief Executive
            Officer of the Company, Executive shall be credited with sufficient
            prior years of service for purposes of determining Executive's
            benefit payable under the Company's supplemental pension and related
            benefit plans so that Executive would have 25 years of service if
            Executive remained employed by the Company until age 65.

     4.3    Directors and Officers Liability Coverage. Executive shall be
            entitled to the same coverage under the Company's directors and
            officers liability insurance policies as is available to senior
            executive officers and directors with the Company. In any event, the
            Company shall indemnify and hold Executive harmless, to the fullest
            extent permitted by the laws of the State of Delaware, from and
            against all costs, charges and expenses (including reasonable
            attorneys' fees) incurred or sustained in connection with any
            action, suit or proceeding to which Executive or his legal
            representatives may be made a party by reason of Executive's being
            or having been a director or officer of the Company or any of its
            affiliates. The provisions of this subparagraph shall survive the
            termination of this Agreement for any reason.

     4.4    Expenses. Executive is authorized to incur reasonable expenses in
            carrying out his duties under this Agreement, including expenses for
            travel and similar items related to such duties. The Company shall
            reimburse Executive for all such expenses upon presentation by
            Executive from time to time of an itemized account of such
            expenditures.

     5.     Termination of Employment. The Company may terminate Executive's
            employment at any time for any reason, and Executive may terminate
            his employment at any time for Good Reason, subject to the terms of
            this Section 5. For purposes of this Section 5, the following terms
            shall have the following meanings:

            (a)  "Cause" shall be limited to (i) action by Executive involving
                 willful malfeasance in connection with his employment having a
                 material adverse effect on the Company, (ii) substantial and
                 continuing refusal by Executive in willful breach of this
                 Agreement to perform the duties ordinarily performed by an
                 executive occupying his position, which refusal has a material
                 adverse effect on the Company, or (iii) Executive being
                 convicted of a felony involving moral turpitude under the laws
                 of the United States or any state.

            (b)  "Good Reason" shall mean (i) the assignment to Executive of
                 duties materially

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                                                       Exhibit 10.13 (continued)

                 inconsistent with Executive's position or any removal of
                 Executive from, or failure to elect or reelect Executive to,
                 the position of President of the Company and Vice Chairman of
                 the Board of Directors (or other position as may be agreed to
                 by Executive), except in any case in connection with the
                 termination of Executive's employment for Cause, Permanent
                 Disability, death, or voluntary termination by Executive
                 without Good Reason, (ii) a reduction of Executive's Base
                 Salary or annual target bonus opportunity as in effect on the
                 Effective Date or as the same may be increased from time to
                 time, (iii) any material breach by the Company of any provision
                 of this Agreement, (iv) a requirement that Executive be based
                 at any office or location other than Omaha, Nebraska at any
                 time within four years following the Effective Date or (v) a
                 Change of Control of the Company occurs.

            (c)  "Change of Control" shall have the meaning provided in the
                 Conditional Employment Agreement between the Company and
                 Executive dated of even date herewith.

            (d)  "Permanent Disability" shall mean the permanent disability of
                 Executive as defined under the Company's Long-Term Disability
                 Plan.

     5.1    Termination Upon Death or Permanent Disability. In the event
            Executive's employment with the Company is terminated by reason of
            Executive's death or Permanent Disability (i) all restrictions on
            previously-granted restricted stock awards shall lapse and such
            shares shall become fully vested, (ii) all options previously
            granted to Executive in connection with the LTSMIP shall become
            fully vested and exercisable during the remainder of the term of
            such options, and all then vested options granted in accordance with
            Section 3.5 above shall remain exercisable during the full term of
            such options, (iii) all deferred and other amounts previously
            accrued for the benefit of Executive shall be promptly paid to
            Executive's estate or designated beneficiary (the items in (i), (ii)
            and (iii) above are collectively referred to as the "Accrued
            Benefits"), (iv) Executive and his dependents shall continue to
            participate in the Company's employee benefit plans to the extent
            provided in such plans with respect to the death or Permanent
            Disability of senior executive officers of the Company, (v)
            Executive's Base Salary shall be paid through the month of death or
            Permanent Disability and (vi) Executive shall receive a benefit
            under the Annual Bonus Plan and the LTSMIP prorated for the fiscal
            year during which Executive died or became Permanently Disabled.

     5.2    Termination Without Cause or for Good Reason. If the Company
            terminates the employment of Executive without Cause, or if
            Executive voluntarily terminates employment with Good Reason, (i)
            Executive shall receive all Accrued Benefits, (ii) Executive and his
            dependents shall continue to participate in the Company's medical
            and dental programs for a period of 24 months at no cost to
            Executive, (iii) Executive's Base Salary shall continue for a period
            of 24 months following such termination, and (iv) in the event of a
            termination for Good Reason on account of a Change of Control,
            Executive shall receive the benefits described in the Conditional
            Employment Agreement of even date herewith (reduced to the extent
            the Base Salary benefit in (iii) above is duplicative of a similar
            benefit under such Conditional Employment Agreement).

     5.3    Termination With Cause or Without Good Reason. If the Company
            terminates the employment of Executive with Cause, or if Executive
            voluntarily terminates employment with the Company without Good
            Reason, then (i) Executive shall be paid the Base Salary through the
            month of termination, and (ii) Executive shall receive benefits, if
            any, under Company plans in accordance with the terms of such plans.

     5.4    Timing of Payments. All cash payments required hereunder following
            the termination of Executive's employment shall be made within
            fifteen days following such termination; provided, that cash
            payments under the Annual Bonus Plan or the LTSMIP shall be made
            following the end of the applicable fiscal year at the same time as
            such payments are made to the Company's other

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                                                       Exhibit 10.13 (continued)

            senior executive officers participating in such plans.

     6.     Nondisclosure of Confidential Information. Executive shall not,
            without the prior written consent of the Company, disclose any
            Company Confidential Information except (i) in the business of and
            for the benefit of the Company, while employed by the Company, or
            (ii) when required to do so by a court of competent jurisdiction, by
            any administrative body or legislative body. "Confidential
            Information" shall mean non-public information concerning the
            Company's financial data, strategic business plans, product
            development and other proprietary information, except for items
            which have become publicly available information or are otherwise
            known to the public. Confidential Information does not include
            information the disclosure of which could not reasonably be expected
            to adversely affect the business of the Company.

     7.     Noncompetition. From the Effective Date through a period ending two
            years following the termination of the employment of Executive with
            the Company for any reason, Executive shall not be an executive
            officer, board member, 5% or greater owner or partner, or employee
            of a food company with revenues over $1 billion. Executive agrees
            that any breach of the covenants contained in this Section 7, and
            the covenants contained in the preceding Section 6, will irreparably
            injure the Company, and accordingly the Company may, in addition to
            pursing any other remedies available at law or in equity, obtain an
            injunction against Executive from any court having jurisdiction over
            the matter, restraining any further violation of such provisions by
            Executive.

            Executive acknowledges and agrees that the provisions of this
            Section 7 are reasonable and valid in duration and scope and in all
            other respects. If any court determines that any provision of this
            Section is unenforceable because of duration or scope of such
            provision, such court shall have the power to reduce the scope or
            duration of such provision, as the case may be, and, in its reduced
            form, such provision shall then be enforceable.

     8.     Offsets. In the event of any breach of this Agreement, Executive
            shall not be required to mitigate damages nor shall the payments due
            Executive hereunder be reduced or offset by reason of any payments
            Executive may receive from any other source.

     9.     Separability; Legal Fees. If any provision of this Agreement shall
            be declared to be invalid or unenforceable, in whole or in part,
            such invalidity or unenforceability shall not affect the remaining
            provisions hereof which shall remain in full force and effect. In
            addition, the Company shall pay to Executive as incurred all legal
            and accounting fees and expenses incurred by Executive in seeking to
            obtain or enforce any right or benefit provided by this Agreement or
            any other compensation- related plan, agreement or arrangement of
            the Company, unless Executive's claim is found by a court of
            competent jurisdiction to have been frivolous.

     10.    Assignment. This Agreement shall be binding upon and inure to the
            benefit of the heirs and representatives of Executive and the
            assigns and successors of the Company, but neither this Agreement
            nor any rights hereunder shall be assignable or otherwise subject to
            hypothecation by Executive (except by will or by operation of the
            laws of intestate succession) or the Company, except that the
            Company may assign this Agreement to any successor (whether by
            merger, purchase or otherwise) to all or substantially of the stock,
            assets or businesses of the Company.

     11.    Amendment. This Agreement may only be amended by mutual written
            agreement between the Company and Executive.

     12.    Notices. All notices or communications hereunder shall be in
            writing, addressed as follows:

            To the Company:                    ConAgra, Inc.
                                               One ConAgra Drive

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                                                       Exhibit 10.13 (continued)

                                               Omaha, Nebraska 68102

                                               Attn: Secretary

            To Executive:                      Bruce Rohde
                                               843 South 96th Street
                                               Omaha, Nebraska 68114

            Any such notice or communication shall be sent certified or
            registered mail, return receipt requested, postage prepaid,
            addressed as above (or to such other address as such party may
            designate in a notice duly delivered as described above), and the
            actual date of mailing shall determine the date at which notice was
            given.

     13.    Governing Law. This Agreement shall be construed, interpreted and
            governed in accordance with the laws of Delaware without reference
            to such state's rules relating to conflicts of law.

                                               CONAGRA, INC.

                                               By: /s/ Philip B. Fletcher

                                               ----------------------------
                                               Chairman, Board of Directors

                                               /s/ Bruce Rohde

                                               ----------------------------
                                               Bruce Rohde

                                    AGREEMENT

     Agreement made effective this 26th day of August, 1996, by and between
ConAgra, Inc., a Delaware corporation, hereinafter referred to as "ConAgra", and
BRUCE ROHDE, hereinafter referred to as "Employee".

     WHEREAS, the Board of Directors of ConAgra has determined that the
interests of ConAgra stockholders will be best served by assuring that all key
corporate executives of ConAgra will adhere to the policy of the Board of
Directors with respect to any event by which another entity would acquire
effective control of ConAgra, including but not limited to a tender offer, and

     WHEREAS, the Board of Directors has also determined that it is in the best
interests of ConAgra stockholders to promote stability among key executives and
employees.

     NOW, THEREFORE, it is agreed as follows:

     1.     Duties of Employee. Employee shall support the position of the Board
            of Directors and the chief executive officer, and shall take any
            action requested by the Board of Directors or the chief executive
            officer with respect to any "Change of Control" (as defined at
            Section 7 below) of ConAgra. If the Employee violates the provisions
            of this Section, he shall forfeit any payments due to him under the
            terms of this Agreement.

     2.     Employment Contract. If a Change of Control of ConAgra occurs, and
            if at the initiation of the Change of Control attempt Employee is
            then employed by ConAgra, ConAgra hereby agrees to continue the
            employment of Employee for a period of three years from the date the
            Change of Control effectively occurs. During said three year period,
            Employee shall receive annual base and incentive compensation in an
            amount not less than that specified in Section 3(a) below.

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                                                       Exhibit 10.13 (continued)

            If Employee is Involuntarily Terminated (as defined at Section 7
            below), at any time during the three year period, ConAgra shall pay
            to Employee an amount equal to that which Employee would have
            received pursuant to Section 3(a) below for the remainder of the
            three year period, and shall also make the payments specified in
            Sections 3(b) and 3(c) and, if applicable, any additional payments
            specified in Section 5 below. In addition, in the event of
            Involuntary Termination at any time, Employee shall receive payment
            of the base and incentive compensation described in Section 3(a) for
            one year. Any such termination payment of base and incentive
            compensation shall be made to Employee in a lump sum within thirty
            (30) days after termination.

            If Employee voluntarily terminates his employment at any time during
            the three year period, the Acquiror (as defined below), ConAgra, and
            their subsidiaries will not be obligated to pay the Employee any
            amount that might be due for the remainder of the three year period,
            or for any termination pay; however, they shall make any additional
            payments specified in Sections 3(b), 3(c) and 5 (if applicable)
            below.

     3.     Description of Payments. The payments to be made to Employee are:

            (a)  Annual Base and Incentive Compensation. Employee shall receive
                 for the three year period described in Section 2 above an
                 annual amount equal to his current annual rate of compensation,
                 which current annual compensation shall be computed as follows:
                 twenty-six times the Employee's highest bi-weekly salary
                 payment received during the one year period ending immediately
                 prior to the Change of Control of ConAgra. In addition,
                 Employee shall receive for the three year period described in
                 Section 2 above (i) an amount of annual short-term incentive
                 equal to 80% of the annual rate of compensation described
                 above, and (ii) an amount equal to the highest annual long-term
                 compensation award made to Employee during the three fiscal
                 years immediately preceding such Change of Control (provided,
                 for fiscal year 1997, such amount shall be equal to the per
                 unit payout for fiscal 1996 under the ConAgra's Long-Term
                 Senior Management Incentive Plan multiplied by the number of
                 units allocated to Employee for fiscal 1997).

            (b)  Retirement Benefits. Employee shall receive an amount equal to
                 that which he would have received as retirement benefits under
                 the provisions of the ConAgra Pension Plan for Salaried
                 Employees ("Qualified Pension Plan") and the ConAgra Retirement
                 Income Savings Plan("CRISP") in effect immediately prior to the
                 Change of Control of ConAgra, had Employee continued his
                 employment until age 65 at the current annual rate of base and
                 short term incentive compensation as determined above.

                 (i)    The supplemental pension benefit hereunder shall be
                        equal to the result of subtracting (x) the benefit the
                        Employee will receive under the Qualified Pension Plan
                        from (y) the pension benefit the Employee would obtain
                        under the Qualified Pension Plan if the Employee
                        remained in the employ of ConAgra until the Employee
                        attained age 65. The supplemental pension benefit is to
                        be computed assuming the Employee is to receive an
                        unreduced normal retirement pension benefit payable
                        beginning at the later of the date the Employee attains
                        age 60 or the date of the Employee's termination of
                        employment. If the Employee begins to receive his
                        supplemental pension benefit at a time other than as
                        described in the preceding sentence, an actuarial
                        adjustment shall be made to reflect such event.

                 (ii)   The supplemental CRISP benefit shall be equal to the
                        amount computed, as follows:

                        A.    The additional years of service that the Employee
                              would receive if his

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                                                       Exhibit 10.13 (continued)

                              or her employment was not terminated prior to
                              attaining age 65 is multiplied by the Employee's
                              current annual base and short term incentive
                              compensation (as described in Section 3(a)).

                        B.    The result in A, immediately above, is multiplied
                              by 3%.

                        C.    The result in B, immediately above, is present
                              valued to the date of the Employee's termination
                              of employment. The discount factor for such
                              present value shall be the discount factor used by
                              the Qualified Pension Plan at the time of such
                              termination of employment. The present value shall
                              be computed based on the assumption that the
                              result in B, immediately above, is paid ratably
                              (and monthly) over the additional years of service
                              of the Employee.

                        D.    The present value amount determined pursuant to C,
                              immediately above, shall be funded pursuant to
                              Subsection (iv) of this Section 3(b).

                 (iii)  The actuarial assumptions and methods used by this
                        Section 3(b) shall be the same as those used by the
                        Qualified Pension Plan. The timing of payment and the
                        form of the supplemental pension benefit under this
                        Section 3(b) shall be the same as elected by the
                        Employee under the Qualified Pension Plan and the timing
                        of payment and the form of the supplemental CRISP
                        benefit shall be the same as elected by the Employee
                        under CRISP;

                 (iv)   The supplemental pension and CRISP benefits payable
                        under this Section 3(b) shall be unfunded until a
                        voluntary termination or Involuntary Termination
                        following a Change of Control. Within 60 days following
                        such a termination, the supplemental pension and CRISP
                        benefits shall be funded, in one lump sum payment,
                        through a trust in the form attached to the ConAgra
                        Supplemental Pension and CRISP Plan for Change of
                        Control and which trust is incorporated by reference.
                        The transferred amount for the supplemental CRISP
                        benefit shall be held in a separate account and
                        separately invested by the trustee. The amount
                        accumulated in such account shall be the sole source of
                        payment of the supplemental CRISP benefit, and shall be
                        the amount of the supplemental CRISP benefit hereunder.
                        The Acquiror, ConAgra and their subsidiaries shall make
                        up any supplemental pension benefit payments the
                        Employee does not receive under the trust, e.g., if the
                        funds in the trust are sufficient to make the payments
                        due to insufficient earnings in the trust. The trustee
                        of such trust shall be a national or state chartered
                        bank. If funding of the trust is not made within the
                        sixty day period described in this Subsection (iv) of
                        this Section 3(b), the Employee's supplemental pension
                        and CRISP benefits 3(b), the Employee's supplemental
                        pension and CRISP benefits shall then be equal to the
                        product of 150% multiplied by the amount of supplemental
                        pension and CRISP benefits described in this Section
                        3(b) above; provided, however, this increase in benefits
                        is not intended to remove or detract from the obligation
                        to fund the trust. The supplemental pension and CRISP
                        benefits shall not be paid from the assets of the
                        Qualified Pension Plan or CRISP.

            (c)  Additional Payment. If a Change of Control of ConAgra occurs,
                 Employee shall receive an amount equal to the excess, if any,
                 of the highest per share price offered (valued in U.S.
                 currency) by the successful Acquiror for ConAgra common stock
                 (which stock will then be treated for purposes of this
                 Agreement as converted into equivalent shares of such
                 Acquiror's or the surviving company's capital stock as of the
                 date of the Change of Control of ConAgra) over the closing per
                 share price of such Acquiror's or the surviving

                                       63
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                                                       Exhibit 10.13 (continued)

                 company's ("Acquiror") stock quoted on an established
                 securities market (or if applicable, the closing bid price for
                 the Acquiror's stock that is quoted on a secondary market or
                 substantial equivalent thereof) on the date of termination (or
                 if the date of termination is not a business day, on the next
                 preceding business day), multiplied by the highest number of
                 shares of the Acquiror's capital stock owned by the Employee at
                 any time during the period beginning on the date of the Change
                 of Control of ConAgra and ending on the date of termination.
                 For purposes of this Section 3(c), the additional amount due
                 hereunder shall be computed as if Employee owned all of the
                 Acquiror's stock with respect to which Employee has an option
                 to purchase in connection with his employment with the
                 Acquiror, ConAgra or any of their subsidiaries. Said amount
                 shall be paid to Employee within ten days after termination. In
                 addition, if Employee sells any of the Acquiror's stock within
                 one year following said termination, Employee shall receive the
                 amount by which the closing price of such stock per share on
                 the date of termination (determined as aforesaid) exceeds the
                 per share actual net sales price of the Acquiror's stock on the
                 date of sale realized by Employee, multiplied by the number of
                 shares sold by Employee. Said amount shall be paid in
                 immediately available funds to Employee within ten days after
                 the sale. In addition, to the extent any of ConAgra's common
                 stock remains outstanding after a Change of Control, then
                 Employee shall receive additional amounts computed and payable
                 in a manner similar to that provided in this Section 3(c) for
                 Acquiror's stock owned, or subject to an option held, by
                 Employee. These provisions shall be appropriately modified or
                 adjusted to take into account the fact that the computations
                 pursuant to the preceding sentence are with respect to ConAgra
                 common stock and related options rather than the Acquiror's
                 capital stock and options related thereto. The computations and
                 payments under this Section 3(c) shall include appropriate
                 adjustments for any stock splits, stock dividends,
                 recapitalizations or similar share restructurings that may
                 occur from time to time.

     4.     Merger. ConAgra shall not merge, reorganize, consolidate or sell all
            or substantially all of its assets, to or with any other corporation
            until such corporation and its subsidiaries, if any, expressly
            assume the duties of ConAgra set forth herein.

     5.     Certain Additional Payments by ConAgra.

            (a)  Anything in this Agreement to the contrary notwithstanding, in
                 the event it shall be determined that any payment or
                 distribution by ConAgra to or for the benefit of the Employee,
                 whether paid or payable or distributed or distributable
                 pursuant to the terms of this Agreement or otherwise (a
                 "Payment"), would be subject to the excise tax imposed by
                 Section 4999 of the Internal Revenue Code of 1986, as amended
                 (the "Code") or any interest or penalties with respect to such
                 excise tax (such excise tax, together with any such interest
                 and penalties, are hereinafter collectively referred to as the
                 "Excise Tax"), then the Employee shall be entitled to receive
                 an additional payment (a "Gross-Up Payment") in any amount such
                 that after payment by the Employee of all taxes (including any
                 interest or penalties imposed with respect to such taxes),
                 including any Excise Tax, imposed upon the Gross-Up Payment,
                 the Employee retains an amount of the Gross-Up Payment equal to
                 the Excise Tax imposed upon the Payments.

            (b)  Subject to the provisions of Subsection (c) below, all
                 determinations required to be made under this Section,
                 including whether a Gross-Up Payment is required and the amount
                 of such Gross-Up Payment, shall be made by the certified public
                 accounting firm then representing ConAgra (the "Accounting
                 Firm") which shall provide detailed supporting calculations
                 both to ConAgra and the Employee within 15 business days of the
                 date of termination, if applicable, or such earlier time as is
                 requested by ConAgra or Employee. If the Accounting Firm
                 determines that no Excise Tax is payable by the Employee, it
                 shall furnish the Employee with an opinion that he has
                 substantial authority not to report any

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                                                       Exhibit 10.13 (continued)

                 Excise Tax on his federal income tax return. Any determination
                 by the Accounting Firm shall be binding upon ConAgra and the
                 Employee. As a result of the uncertainty in the application of
                 Section 4999 of the Code at the time of the initial
                 determination by the Accounting Firm hereunder, it is possible
                 that Gross-Up Payments which will not have been made by ConAgra
                 should have been made ("Underpayment"), consistent with the
                 calculations required to be made hereunder. In the event that
                 ConAgra exhausts its remedies pursuant to Subsection (c) below
                 and the Employee thereafter is required to make a payment of
                 any Excise Tax, the Accounting Firm shall determine the amount
                 of the Underpayment that has occurred and any such Underpayment
                 shall be promptly paid by ConAgra to or for the benefit of the
                 Employee.

            (c)  The Employee shall notify ConAgra in writing of any claim by
                 the Internal Revenue Service that, if successful, would require
                 the payment by ConAgra of the Gross-Up Payment. Such
                 notification shall be given as soon as practicable but no later
                 than ten (10) business days after the Employee knows of such
                 claim and shall apprise ConAgra of the nature of such claim and
                 the date on which such claim is requested to be paid. The
                 Employee shall not pay such claim prior to the expiration of
                 the thirty-day (30 day) period following the date on which it
                 gives such notice to ConAgra (or such shorter period ending on
                 the date that any payment of taxes with respect to such claim
                 is due). If ConAgra notifies the Employee in writing prior to
                 the expiration of such period that it desires to contest such
                 claim, the Employee shall:

                 (i)    give ConAgra any information reasonably requested by
                        ConAgra relating to such claim,

                 (ii)   take such action in connection with contesting such
                        claim as ConAgra shall reasonably request in writing
                        from time to time, including, without limitation,
                        accepting legal representation with respect to such
                        claim by an attorney reasonably selected by ConAgra,

                 (iii)  cooperate with ConAgra in good faith in order to
                        effectively contest such claim,

                 (iv)   permit ConAgra to participate in any proceedings
                        relating to such claim; provided, however, that ConAgra
                        shall bear and pay directly all costs and expenses
                        (including additional interest and penalties) incurred
                        in connection with such contest and shall indemnify and
                        hold the Employee harmless, on an after-tax basis, for
                        any Excise Tax or income tax, including interest and
                        penalties with respect thereto, imposed as a result of
                        such representation and payment of costs and expenses.
                        Without limitation on the foregoing provisions of this
                        Subsection (c), ConAgra shall control all proceedings
                        taken in connection with such contest and, at its sole
                        option, may pursue or forego any and all administrative
                        appeals, proceedings, hearings and conferences with the
                        taxing authority in respect of such claim and may, at
                        its sole option, either direct the Employee to pay the
                        tax claimed and sue for a refund or contest the claim in
                        any permissible manner, and the Employee agrees to
                        prosecute such contest to a determination before any
                        administrative tribunal, in a court of initial
                        jurisdiction and in one or more appellate courts, as
                        ConAgra shall determine; provided, however, that if
                        ConAgra directs the Employee to pay such claim and sue
                        for a refund, ConAgra shall advance the amount of such
                        payment to the Employee, on an interest-free basis and
                        shall indemnify and hold the Employee harmless, on an
                        after-tax basis, from any Excise Tax or income tax,
                        including interest or penalties with respect thereto,
                        imposed with respect to such advance or with respect to
                        any imputed income with respect to such advance; and
                        further provided that any extension of the statute of
                        limitations relating to payment of taxes for the taxable
                        year of the Employee with respect to which such
                        contested amount is claimed to be due is

                                       65
<Page>

                                                       Exhibit 10.13 (continued)

                        limited solely to such contested amount. Furthermore,
                        ConAgra's control of the contest shall be limited to
                        issues with respect to which a Gross-Up Payment would be
                        payable hereunder and the Employee shall be entitled to
                        settle or contest, as the case may be, any other issue
                        raised by the Internal Revenue Service or any other
                        taxing authority.

                 (d)    If, after the receipt by the Employee of an amount
                        advanced by ConAgra pursuant to Subsection (c) above,
                        the Employee becomes entitled to receive any refund with
                        respect to such claim, the Employee shall (subject to
                        ConAgra's complying with the requirements of Subsection
                        (c)) promptly pay to ConAgra the amount of such refund
                        (together with any interest paid or credited thereon
                        after taxes applicable thereto). If, after the receipt
                        by the Employee of an amount advanced by ConAgra
                        pursuant to Subsection (c), a determination is made that
                        the Employee shall not be entitled to any refund with
                        respect to such claim and ConAgra does not notify the
                        Employee in writing of its intent to contest such denial
                        of refund prior to the expiration of thirty days after
                        such determination, then such advance shall be forgiven
                        and shall not be required to be repaid and the amount of
                        such advance shall offset, to the extent thereof, the
                        amount of Gross-Up Payment required to be paid.

     6.     Term and Binding Effect. This Agreement shall bind ConAgra and
            Employee as long as Employee remains in the employ of ConAgra;
            provided, however, ConAgra may terminate this Agreement at any time
            by giving notice to Employee; and provided further, however, that
            ConAgra may not terminate this Agreement at any time subsequent to
            the announcement of an event that could result in a Change of
            Control of ConAgra. This Agreement shall be binding upon the parties
            hereto, their heirs, executors, administrators and successors.

     7.     Certain Definitions. The following definitions shall apply for the
            purposes of this Agreement:

            (a)  Change of Control of ConAgra. The term "Change of Control"
                 shall mean:

                 (i)    The acquisition (other than from ConAgra) by any person,
                        entity or "group", within the meaning of Section
                        13(d)(3) or 14(d)(2) of the Securities Exchange Act of
                        1934 (the "Exchange Act"), (excluding, for this purpose,
                        ConAgra or its subsidiaries, or any employee benefit
                        plan of ConAgra or its subsidiaries, which acquires
                        beneficial ownership of voting securities of ConAgra) of
                        beneficial ownership (within the meaning of Rule 13d-3
                        promulgated under the Exchange Act) of 30% or more of
                        either the then outstanding shares of common stock or
                        the combined voting power of ConAgra's then outstanding
                        voting securities entitled to vote generally in the
                        election of directors; or

                 (ii)   Individuals who, as of the date hereof, constitute the
                        Board (as of the date hereof the "Incumbent Board")
                        cease for any reason to constitute at least a majority
                        of the Board, provided that any person becoming a
                        director subsequent to the date hereof whose election,
                        or nomination for election by ConAgra's shareholders,
                        was approved by a vote of at least a majority of the
                        directors then comprising the Incumbent Board shall be,
                        for purposes of this Agreement, considered as though
                        such person were a member of the Incumbent Board; or

                 (iii)  Approval of the shareholders of ConAgra of a
                        reorganization, merger, consolidation, in each case,
                        with respect to which persons who were the shareholders
                        of ConAgra immediately prior to such reorganization,
                        merger or consolidation do not, immediately thereafter,
                        own more than 50% of the combined voting power entitled
                        to vote generally in the election of directors of

                                       66
<Page>

                                                       Exhibit 10.13 (continued)

                        the reorganized, merged or consolidated company's then
                        outstanding voting securities, or a liquidation or
                        dissolution of ConAgra or of the sale of all or
                        substantially all of its assets.

            (b)  Involuntary Termination. The term "Involuntary Termination" or
                 any variation thereof shall mean either (i) the actual
                 involuntary termination of Employee's employment with the
                 Acquiror, ConAgra and their subsidiaries after a Change of
                 Control (with or without cause) or (ii) the constructive
                 involuntary termination of the Employee's employment with the
                 Acquiror, ConAgra and their subsidiaries after a Change of
                 Control. The term "constructive involuntary termination" shall
                 include (w) a reduction in the Employee's compensation
                 (including applicable fringe benefits); (x) a substantial
                 change in the location of the Employee's job without the
                 Employee's written consent; (y) the Employee's demotion or
                 diminution in the Employee's position, authority, duties or
                 responsibilities without the Employee's written consent; or (z)
                 the sale or disposition of the stock of Employee's immediate
                 employer, which was a subsidiary of the Acquiror, ConAgra, or
                 their other subsidiaries immediately prior to such sale or
                 disposition, provided Employee is not employed after such sale
                 or disposition by the Acquiror, ConAgra, or any of their
                 subsidiaries that are retained after such sale or disposition.
                 "Substantial change in location" means any location change in
                 excess of 35 miles from the location of the Employee's job with
                 ConAgra or its subsidiaries at the time of the Change of
                 Control of ConAgra.

     8.     Costs. All costs of litigation necessary for the Employee to defend
            the validity of this contract are to be paid by ConAgra or its
            successors or assigns.

     IN WITNESS WHEREOF, the parties have executed this Agreement.
EMPLOYEE:                                          CONAGRA, INC.

 /s/ Bruce Rohde                                   /s/ Philip B. Fletcher

-----------------------                            ----------------------------
BRUCE ROHDE                                        Chairman, Board of Directors

                                                   ConAgra, Inc.
                                                   One ConAgra Drive
                                                   Omaha, NE 68102-5001
                                                   Phone: (402) 595-4000

                                February 16, 1998

Bruce Rohde
President and
  Chief Executive Officer
ConAgra, Inc.
One ConAgra Drive
Omaha, Nebraska 68102-5001

Dear Bruce:

     This letter will constitute an amendment of the terms and conditions of the
employment agreement between you and ConAgra dated August 26, 1996 (the
"Agreement"). First, the definition of "accrued benefits" in Section 5.1(ii),
applicable in part in connection with the events described in Sections 5.1 and
5.2, is amended to read as follows: all options previously granted to Executive
in connection with the LTSMIP shall become fully vested and

                                       67
<Page>

                                                       Exhibit 10.13 (continued)

exercisable during the remainder of the term of such options, and all options
granted in accordance with Section 3.5 above shall become fully vested and
exercisable during the remainder of the term of such options. Second, pursuant
to Section 4.2 of the Agreement, you shall be credited with 92 months of
additional service for purposes of determining your benefits payable and for
vesting qualification under ConAgra's nonqualified pension plan and related
benefit plans. Third, in the event of a termination by ConAgra without Cause or
by you for Good Reason (as described in Section 5.2 of the Agreement), you may
elect to receive your benefits under ConAgra's nonqualified pension plan in a
lump sum.

     Subject to the amendments referenced above, all of the other terms and
conditions of your Agreement are hereby ratified and affirmed. If you are in
agreement with the amendments set forth above, please so indicate by signing
below and returning an executed original of this letter to me for placement in
the files of the Human Resources Committee of ConAgra's Board of Directors.

                              Sincerely,

                              /s/ Philip B. Fletcher
                              -----------------------------
                              Philip B. Fletcher, Chairman
                                of the Board of Directors

Acknowledged and Agreed to:

 /s/ Bruce Rohde
---------------------------
Bruce Rohde

                                       68<Page>

                                                                     EXHIBIT 4.1

================================================================================

                             UNION ELECTRIC COMPANY
                                       AND
                              THE BANK OF NEW YORK
                                     TRUSTEE

                                   ----------

                                    INDENTURE

                           DATED AS OF AUGUST 15, 2002

================================================================================

<Page>

       CROSS REFERENCE SHEET SHOWING THE LOCATION IN THE INDENTURE OF THE
         PROVISIONS INSERTED CORRELATIVE TO SECTIONS 310 THROUGH 318(a),
                  INCLUSIVE, OF THE TRUST INDENTURE ACT OF 1939

<Table>
<Caption>
Trust Indenture Act                                                 Indenture
   Section                                                           Section
<S>                                                            <C>
310(a)(1)...................................................................9.09
   (a)(2)...................................................................9.09
   (a)(3).........................................................Not Applicable
   (a)(4).........................................................Not Applicable
   (a)(5)...................................................................9.09
   (b)......................................................................9.08
   (c)............................................................Not Applicable
311(a)......................................................................9.14
   (b)......................................................................9.14
   (c)............................................................Not Applicable
312(a)..........................................................7.01 and 7.02(a)
   (b)...................................................................7.02(b)
   (c)...................................................................7.02(c)
313(a)...................................................................7.04(a)
   (b)...................................................................7.04(b)
   (c)...................................................................7.04(d)
   (d)...................................................................7.04(c)
314(a).............................................................7.03 and 6.06
   (b)......................................................................6.05
   (c)(1).........................................................1.03 and 15.05
   (c)(2).........................................................1.03 and 15.05
   (c)(3).........................................................Not Applicable
   (d).............................................................1.03 and 4.06
   (e)..................................................................15.05(b)
   (f)............................................................Not Applicable
315(a)......................................................................9.01
   (b)......................................................................8.08
   (c)...................................................................9.01(a)
   (d)...................................................................9.01(b)
   (e)......................................................................8.09
316(a)............................................................8.07 and 10.04
   (b).........................................................8.04(b) and 13.02
   (c).....................................................................10.06
317(a)(1)................................................................8.02(b)
   (a)(2)................................................................8.02(c)
   (b).............................................................5.02 and 6.04
318(a).....................................................................15.07
</Table>

----------
NOTE: This reconciliation and tie shall not, for any purpose, be deemed to be a
part of the Indenture.

<Page>

                                Table of Contents

<Table>
<Caption>
                                                                                                 Page
                                                                                                 ----
<S>                 <C>                                                                            <C>
ARTICLE I           DEFINITIONS.....................................................................1
Section 1.01        General.........................................................................1
Section 1.02        Trust Indenture Act.............................................................1
Section 1.03        Definitions.....................................................................2

ARTICLE II          FORM, ISSUE, EXECUTION, REGISTRATION AND EXCHANGE OF NOTES......................8
Section 2.01        Forms Generally.................................................................8
Section 2.02        Form Of Trustee's Certificate Of Authentication.................................8
Section 2.03        Amount Unlimited................................................................8
Section 2.04        Denominations, Dates, Interest Payment And Record Dates.........................8
Section 2.05        Execution, Authentication, Delivery And Dating..................................9
Section 2.06        Exchange And Registration Of Transfer Of Notes.................................13
Section 2.07        Mutilated, Destroyed, Lost Or Stolen Notes.....................................14
Section 2.08        Temporary Notes................................................................15
Section 2.09        Cancellation Of Notes Paid, Etc................................................15
Section 2.10        Interest Rights Preserved......................................................15
Section 2.11        Special Record Date............................................................15
Section 2.12        Payment Of Notes...............................................................16
Section 2.13        Notes Issuable In The Form Of A Global Note....................................17
Section 2.14        CUSIP and ISIN Numbers.........................................................19

ARTICLE III         REDEMPTION OF NOTES............................................................19
Section 3.01        Applicability Of Article.......................................................19
Section 3.02        Notice Of Redemption; Selection Of Notes.......................................19
Section 3.03        Payment Of Notes On Redemption; Deposit Of Redemption Price....................20

ARTICLE IV          SENIOR NOTE FIRST MORTGAGE BONDS...............................................21
Section 4.01        Delivery Of Initial Series Of Senior Note First Mortgage Bonds.................21
Section 4.02        Receipt........................................................................21
Section 4.03        Senior Note First Mortgage Bonds Held By The Trustee...........................21
Section 4.04        No Transfer Of Senior Note First Mortgage Bonds; Exceptions....................22
Section 4.05        Delivery To The Company Of All Senior Note First Mortgage Bonds................22
Section 4.06        Fair Value Certificate.........................................................22
Section 4.07        Further Assurances.............................................................23
Section 4.08        Exchange And Surrender Of Senior Note First Mortgage Bonds.....................23
Section 4.09        Acceptance Of Additional Senior Note First Mortgage Bonds......................24
Section 4.10        Terms Of Senior Note First Mortgage Bonds......................................24
Section 4.11        Senior Note First Mortgage Bonds As Security For Notes.........................24

ARTICLE V           SATISFACTION AND DISCHARGE; UNCLAIMED MONEYS...................................25
Section 5.01        Satisfaction And Discharge.....................................................25
</Table>

                                        i
<Page>

<Table>
<S>                 <C>                                                                            <C>
Section 5.02        Deposited Moneys To Be Held In Trust By Trustee................................27
Section 5.03        Paying Agent To Repay Moneys Held..............................................27
Section 5.04        Return Of Unclaimed Moneys.....................................................27

ARTICLE VI          PARTICULAR COVENANTS OF THE COMPANY............................................27
Section 6.01        Payment Of Principal And Interest..............................................27
Section 6.02        Offices For Payments, Etc......................................................27
Section 6.03        Appointment To Fill A Vacancy In Office Of Trustee.............................28
Section 6.04        Provision As To Paying Agent...................................................28
Section 6.05        Opinions Of Counsel............................................................29
Section 6.06        Certificates And Notice To Trustee.............................................30
Section 6.07        Restrictions On Liens..........................................................30
Section 6.08        Restrictions On Sale And Lease-Back Transactions...............................32
Section 6.09        Corporate Existence............................................................32

ARTICLE VII         NOTEHOLDER LISTS AND REPORTS BY THE COMPANY AND THE TRUSTEE....................32
Section 7.01        Company To Furnish Noteholder Lists............................................32
Section 7.02        Preservation and Disclosure of Noteholder Lists................................33
Section 7.03        Reports By The Company.........................................................34
Section 7.04        Reports By The Trustee.........................................................35

ARTICLE VIII        REMEDIES OF THE TRUSTEE AND NOTEHOLDERS  ON EVENTS OF DEFAULT..................35
Section 8.01        Events Of Default..............................................................35
Section 8.02        Collection Of Indebtedness By Trustee; Trustee May Prove Debt..................37
Section 8.03        Application Of Proceeds........................................................39
Section 8.04        Limitations On Suits By Noteholders............................................40
Section 8.05        Suits For Enforcement..........................................................40
Section 8.06        Powers And Remedies Cumulative; Delay Or Omission Not Waiver Of Default........40
Section 8.07        Direction of Proceedings and Waiver of Defaults By Majority of Noteholders.....41
Section 8.08        Notice of Default..............................................................41
Section 8.09        Undertaking To Pay Costs.......................................................42
Section 8.10        Restoration of Rights on Abandonment of Proceedings............................42
Section 8.11        Defaults Under The First Mortgage..............................................42
Section 8.12        Waiver of Usury, Stay or Extension Laws........................................42

ARTICLE IX          CONCERNING THE TRUSTEE.........................................................42
Section 9.01        Duties and Responsibilities of Trustee.........................................42
Section 9.02        Reliance on Documents, Opinions, Etc...........................................44
Section 9.03        No Responsibility For Recitals, Etc............................................45
Section 9.04        Trustee, Authenticating Agent, Paying Agent Or Registrar May Own Notes.........45
Section 9.05        Moneys To Be Held In Trust.....................................................45
Section 9.06        Compensation And Expenses Of Trustee...........................................45
</Table>

                                       ii
<Page>

<Table>
<S>                 <C>                                                                            <C>
Section 9.07        Officers' Certificate As Evidence..............................................45
Section 9.08        Conflicting Interest Of Trustee................................................46
Section 9.09        Existence And Eligibility Of Trustee...........................................46
Section 9.10        Resignation Or Removal Of Trustee..............................................46
Section 9.11        Appointment Of Successor Trustee...............................................47
Section 9.12        Acceptance By Successor Trustee................................................47
Section 9.13        Succession By Merger, Etc......................................................48
Section 9.14        Limitations On Rights Of Trustee As A Creditor.................................48
Section 9.15        Authenticating Agent...........................................................48

ARTICLE X           CONCERNING THE NOTEHOLDERS.....................................................49
Section 10.01       Action By Noteholders..........................................................49
Section 10.02       Proof Of Execution By Noteholders..............................................49
Section 10.03       Persons Deemed Absolute Owners.................................................49
Section 10.04       Company-Owned Notes Disregarded................................................50
Section 10.05       Revocation Of Consents; Future Holders Bound...................................50
Section 10.06       Record Date For Noteholder Acts................................................50

ARTICLE XI          NOTEHOLDERS' MEETING...........................................................51
Section 11.01       Purposes Of Meetings...........................................................51
Section 11.02       Call Of Meetings By Trustee....................................................51
Section 11.03       Call Of Meetings By Company Or Noteholders.....................................51
Section 11.04       Qualifications For Voting......................................................51
Section 11.05       Regulations....................................................................52
Section 11.06       Voting.........................................................................52
Section 11.07       Rights Of Trustee Or Noteholders Not Delayed...................................53

ARTICLE XII         CONSOLIDATION, MERGER, SALE, TRANSFER OR CONVEYANCE............................53
Section 12.01       Company May Consolidate, Etc. Only On Certain Terms............................53
Section 12.02       Successor Corporation Substituted..............................................53

ARTICLE XIII        SUPPLEMENTAL INDENTURES........................................................54
Section 13.01       Supplemental Indentures Without Consent Of Noteholders.........................54
Section 13.02       Supplemental Indentures With Consent Of Noteholders............................55
Section 13.03       Compliance With Trust Indenture Act; Effect Of Supplemental Indentures.........56
Section 13.04       Notation On Notes..............................................................56
Section 13.05       Evidence Of Compliance Of Supplemental Indenture To Be Furnished Trustee.......57

ARTICLE XIV         IMMUNITY OF INCORPORATORS, STOCKHOLDERS, OFFICERS AND DIRECTORS................57
Section 14.01       Indenture And Notes Solely Corporate Obligations...............................57

ARTICLE XV          MISCELLANEOUS PROVISIONS.......................................................57
Section 15.01       Provisions Binding On Company's Successors.....................................57
</Table>

                                       iii
<Page>

<Table>
<S>                 <C>                                                                            <C>
Section 15.02       Official Acts By Successor Corporation.........................................57
Section 15.03       Notices........................................................................57
Section 15.04       Governing Law..................................................................58
Section 15.05       Evidence Of Compliance With Conditions Precedent...............................58
Section 15.06       Business Days..................................................................59
Section 15.07       Trust Indenture Act To Control.................................................59
Section 15.08       Table Of Contents, Headings, Etc...............................................59
Section 15.09       Execution In Counterparts......................................................59
Section 15.10       Manner Of Mailing Notice To Noteholders........................................59
Section 15.11       Approval By Trustee Of Expert Or Counsel.......................................60
</Table>

EXHIBIT A- Form of Global Note Prior to Release Date
EXHIBIT B- Form of Note Prior to Release Date
EXHIBIT C- Form of Global Note Following Release Date
EXHIBIT D- Form of Note Following Release Date

                                       iv
<Page>

     THIS INDENTURE, dated as of August 15, 2002, between UNION ELECTRIC
COMPANY, a corporation duly organized and existing under the laws of the State
of Missouri (the "COMPANY"), and The Bank of New York, a New York banking
corporation, as trustee (the "TRUSTEE").

                                   WITNESSETH

     WHEREAS, for its lawful corporate purposes, the Company has duly authorized
the execution and delivery of this Indenture to provide for the issuance from
time to time of its Notes (as hereinafter defined), to be issued as in this
Indenture provided;

     WHEREAS, subject to the provisions of Section 4.11 hereof, the Company has
issued a series of Senior Note First Mortgage Bonds (as hereinafter defined) and
has delivered such series to the Trustee to hold in trust for the benefit of the
respective Holders (as hereinafter defined) from time to time of the Notes, and,
subject to the terms and provisions hereof, the Company may deliver additional
series of Senior Note First Mortgage Bonds to the Trustee for such purpose or
require the Trustee to deliver to the Company, for cancellation, any and all
Senior Note First Mortgage Bonds held by the Trustee;

     AND WHEREAS, all acts and things necessary to make this Indenture a valid
agreement according to its terms have been done and performed, and the execution
of this Indenture and the issue hereunder of the Notes have in all respects been
duly authorized;

     NOW THEREFORE, THIS INDENTURE WITNESSETH:

     That in order to declare the terms and conditions upon which the Notes are,
and are to be authenticated, issued and delivered, and in consideration of the
premises, of the purchase and acceptance of the Notes by the Holders thereof and
of the sum of one dollar duly paid to it by the Trustee at the execution of this
Indenture, the receipt whereof is hereby acknowledged, the Company covenants and
agrees with the Trustee for the equal and proportionate benefit of the
respective Holders from time to time of the Notes, as follows:

                                    ARTICLE I

                                   DEFINITIONS

     Section 1.01   GENERAL. The terms defined in this Article I (whether or not
capitalized and except as herein otherwise expressly provided or unless the
context otherwise requires) for all purposes of this Indenture and of any
indenture supplemental hereto or Company Order (as hereinafter defined) shall
have the respective meanings specified in this Article I.

     Section 1.02   TRUST INDENTURE ACT. (a) Whenever this Indenture refers to a
provision of the Trust Indenture Act of 1939 (the "TIA"), such provision is
incorporated by reference in and made a part of this Indenture.

            (b)     Unless otherwise indicated, all terms used in this Indenture
that are defined by the TIA, defined by the TIA by reference to another statute
or defined by a rule of the

<Page>

Commission under the TIA shall have the meanings assigned to them in the TIA or
such statute or rule as in force on the date of execution of this Indenture.

     Section 1.03   DEFINITIONS. For purposes of this Indenture, the following
terms shall have the following meanings.

     "AUTHENTICATING AGENT" shall mean any agent of the Trustee which shall be
appointed and acting pursuant to Section 9.15 hereof.

     "AUTHORIZED AGENT" shall mean any agent of the Company designated as such
by an Officers' Certificate delivered to the Trustee.

     "BOARD OF DIRECTORS" shall mean the Board of Directors of the Company or
any duly authorized committee of such Board.

     "BOARD RESOLUTION" shall mean a copy of a resolution certified by the
Secretary or an Assistant Secretary of the Company to have been duly adopted by
the Board of Directors and to be in full force and effect on the date of such
certification, and delivered to the Trustee.

     "BUSINESS DAY" shall mean each Monday, Tuesday, Wednesday, Thursday and
Friday that is not a day on which banking institutions or trust companies in the
Borough of Manhattan, the City and State of New York, or in the city where the
corporate trust office of the Trustee is located, are obligated or authorized by
law or executive order to close.

     "CAPITAL LEASE" shall mean any lease which has been or would be capitalized
on the books of the lessee in accordance with GAAP.

     "CAPITALIZATION" shall mean the total of all the following items appearing
on, or included in, the consolidated balance sheet of the Company: (i)
liabilities for Debt maturing more than twelve (12) months from the date of
determination; and (ii) common stock, preferred stock or other securities,
Hybrid Preferred Securities, premium on capital stock, capital surplus, capital
in excess of par value, and retained earnings (however the foregoing may be
designated), less, to the extent not otherwise deducted, the cost of shares of
capital stock of the Company held in its treasury. Subject to the foregoing,
Capitalization shall be determined in accordance with generally accepted
accounting principles and practices applicable to the type of business in which
the Company is engaged and that are approved by independent accountants
regularly retained by the Company, and may be determined as of a date not more
than sixty (60) days prior to the happening of an event for which such
determination is being made.

     "COMMISSION" shall mean the United States Securities and Exchange
Commission, or if at any time hereafter the Commission is not existing or
performing the duties now assigned to it under the TIA, then the body performing
such duties.

     "COMPANY" shall mean the corporation named as the "Company" in the first
paragraph of this Indenture, and its successors and assigns permitted hereunder.

     "COMPANY ORDER" shall mean a written order or certificate signed in the
name of the Company by one of the Chairman, the President, any Vice President
(whether or not designated

                                        2
<Page>

by a number or numbers or a word or words added before or after the title "Vice
President"), the Chief Financial Officer, Treasurer or an Assistant Treasurer of
the Company, and delivered to the Trustee. At the Company's option, a Company
Order may take the form of a supplemental indenture to this Indenture.

     "CONSOLIDATED SUBSIDIARY" shall mean any Subsidiary whose accounts are or
are required to be consolidated with the accounts of the Company in accordance
with GAAP.

     "CORPORATE TRUST OFFICE OF THE TRUSTEE", or other similar term, shall mean
the corporate trust office of the Trustee, at which at any particular time its
corporate trust business shall be principally administered, which office is at
the date of the execution of this Indenture located at 101 Barclay Street, Floor
21W, New York, New York 10286.

     "DEBT" shall mean any outstanding debt for money borrowed of the Company
evidenced by notes, debentures, bonds, or other securities, or guarantees by the
Company (without duplication) of any thereof.

     "DEPOSITARY" shall mean, unless otherwise specified in a Company Order
pursuant to Section 2.05 hereof, The Depository Trust Company, New York, New
York ("DTC"), or any successor thereto registered and qualified as a clearing
agency under the Securities Exchange Act of 1934, or other applicable statute or
regulation.

     "EVENT OF DEFAULT" shall mean any event specified in Section 8.01 hereof,
continued for the period of time, if any, and after the giving of the notice, if
any, therein designated.

     "EXPERT" shall mean any officer of the Company familiar with the terms of
the First Mortgage and this Indenture, any law firm, any investment banking
firm, or any other Person, satisfactory in the reasonable judgment of the
Trustee.

     "FIRST MORTGAGE" shall mean the Indenture of Mortgage and Deed of Trust,
dated June 15, 1937 between the Company and The Bank of New York, as successor
trustee, as supplemented and amended from time to time.

     "FIRST MORTGAGE BONDS" shall mean all first mortgage bonds issued by the
Company and outstanding under the First Mortgage, other than Senior Note First
Mortgage Bonds.

     "GAAP" shall mean generally accepted accounting principles in the United
States of America as in effect on the date hereof, applied on a basis consistent
with those used in the preparation of any financial statements referred to
herein, unless otherwise stated herein.

     "GLOBAL NOTE" shall mean a Note that, pursuant to Section 2.05 hereof, is
issued to evidence Notes, that is delivered to the Depositary or pursuant to the
instructions of the Depositary and that shall be registered in the name of the
Depositary or its nominee.

                                        3
<Page>

     "HYBRID PREFERRED SECURITIES" shall mean any preferred securities issued by
a Hybrid Preferred Securities Subsidiary, where such preferred securities have
the following characteristics:

            (i)     such Hybrid Preferred Securities Subsidiary lends
     substantially all of the proceeds from the issuance of such preferred
     securities to the Company in exchange for Debt issued by the Company; and

            (ii)    the Company makes periodic interest payments on the related
     debt, which interest payments are in turn used by the Hybrid Preferred
     Securities Subsidiary to make corresponding payments to the holders of the
     Hybrid Preferred Securities.

     "HYBRID PREFERRED SECURITIES SUBSIDIARY" shall mean any business trust (or
similar entity) (i) all of the common equity interest of which is owned (either
directly or indirectly through one or more wholly-owned Subsidiaries of the
Company or any Consolidated Subsidiary of the Company) at all times by the
Company, (ii) that has been formed for the purpose of issuing Hybrid Preferred
Securities and (iii) substantially all of the assets of which consist at all
times solely of Junior Subordinated Indebtedness issued by the Company and
payments made from time to time on such Junior Subordinated Indebtedness.

     "INDENTURE" shall mean this instrument as originally executed or, if
amended or supplemented as herein provided, as so amended or supplemented, and
shall include the terms and provisions of a particular series of Notes
established pursuant to Section 2.05 hereof.

     "INTEREST PAYMENT DATE", when used with respect to any Note, shall mean (a)
each date designated as such for the payment of interest on such Note specified
in a Company Order pursuant to Section 2.05 hereof (provided that the first
Interest Payment Date for such Note, the Original Issue Date of which is after a
Regular Record Date but prior to the respective Interest Payment Date, shall be
the Interest Payment Date following the next succeeding Regular Record Date),
(b) a date of Maturity of such Note and (c) only with respect to defaulted
interest on such Note, the date established by the Trustee for the payment of
such defaulted interest pursuant to Section 2.11 hereof.

     "JUNIOR SUBORDINATED INDEBTEDNESS" shall mean any unsecured Debt of the
Company (i) issued in exchange for the proceeds of Hybrid Preferred Securities
and (ii) subordinated to the rights of the Holders hereunder.

     "LIEN" shall mean any mortgage, security interest, pledge, lien or other
encumbrance.

     "MATURITY," when used with respect to any Note, shall mean the date on
which the principal of such Note becomes due and payable as therein or herein
provided, whether at the Stated Maturity thereof or by declaration of
acceleration, redemption or otherwise.

     "MORTGAGE TRUSTEE" shall mean the Person serving as corporate trustee at
the time under the First Mortgage.

     "NOTE" or "NOTES" shall mean any Notes authenticated and delivered under
this Indenture, including any Global Note.

                                        4
<Page>

     "NOTEHOLDER", "HOLDER OF NOTES" or "HOLDER" shall mean any Person in whose
name at the time a particular Note is registered on the books of the Trustee
kept for that purpose in accordance with the terms hereof.

     "OFFICERS' CERTIFICATE" when used with respect to the Company, shall mean a
certificate signed by one of the Chairman, the President or any Vice President
(whether or not designated by a number or numbers or a word or words added
before or after the title "Vice President"), and by the Chief Financial Officer,
Treasurer, any Assistant Treasurer, the Secretary or an Assistant Secretary of
the Company; provided, that no individual shall be entitled to sign in more than
one capacity.

     "OPERATING PROPERTY" shall mean (i) any interest in real property owned by
the Company and (ii) any asset owned by the Company that is depreciable in
accordance with GAAP, excluding, in either case, any interest of the Company as
lessee under a Capital Lease (except for a lease that results from a Sale and
Lease-Back Transaction).

     "OPINION OF COUNSEL" shall mean an opinion in writing signed by legal
counsel, who may be an employee of the Company, meeting the applicable
requirements of Section 15.05 hereof. If the Indenture requires the delivery of
an Opinion of Counsel to the Trustee, the text and substance of which has been
previously delivered to the Trustee, the Company may satisfy such requirement by
the delivery by the legal counsel that delivered such previous Opinion of
Counsel of a letter to the Trustee to the effect that the Trustee may rely on
such previous Opinion of Counsel as if such Opinion of Counsel was dated and
delivered the date delivery of such Opinion of Counsel is required. Any Opinion
of Counsel may contain reasonable conditions and qualifications satisfactory to
the Trustee.

     "ORIGINAL ISSUE DATE" shall mean for a Note, or portions thereof, the date
upon which it, or such portion, was issued by the Company pursuant to this
Indenture and authenticated by the Trustee (other than in connection with a
transfer, exchange or substitution).

     "OUTSTANDING", when used with reference to Notes, shall, subject to Section
10.04 hereof, mean, as of any particular time, all Notes authenticated and
delivered by the Trustee under this Indenture, except

            (a)     Notes theretofore cancelled by the Trustee or delivered to
the Trustee for cancellation;

            (b)     Notes, or portions thereof, for the payment or redemption of
which moneys in the necessary amount shall have been deposited in trust with the
Trustee or with any paying agent (other than the Company), PROVIDED that if such
Notes are to be redeemed prior to the Stated Maturity thereof, notice of such
redemption shall have been given as provided in Article III, or provisions
satisfactory to the Trustee shall have been made for giving such notice;

            (c)     Notes, or portions thereof, that have been paid and
discharged or are deemed to have been paid and discharged pursuant to the
provisions of this Indenture; and

            (d)     Notes in lieu of or in substitution for which other Notes
shall have been authenticated and delivered, or which have been paid, pursuant
to Section 2.07 hereof.

                                        5
<Page>

     "PERIODIC OFFERING" means an offering of Notes of a series from time to
time the specific terms of which Notes, including without limitation the rate or
rates of interest, if any, thereon, the Stated Maturity or Maturities thereof
and the redemption provisions, if any, with respect thereto, are to be
determined by the Company or its agents upon the issuance of such Notes.

     "PERSON" shall mean any individual, corporation, company partnership, joint
venture, limited liability company, association, joint-stock company, trust,
unincorporated organization or government or any agent or political subdivision
thereof.

     "PRINCIPAL EXECUTIVE OFFICES OF THE COMPANY" shall mean 1901 Chouteau
Avenue, St. Louis, Missouri 63103, or such other place where the main corporate
offices of the Company are located as designated in writing to the Trustee by an
Authorized Agent.

     "REGULAR RECORD DATE" shall mean, unless otherwise specified in a Company
Order pursuant to Section 2.05 hereof, for an Interest Payment Date for a
particular Note (except for an Interest Payment Date with respect to defaulted
interest on such Note) (a) the fifteenth day next preceding each Interest
Payment Date (unless the Interest Payment Date is the date of Maturity of such
Note, in which event, the Regular Record Date shall be as described in clause
(b) hereof) and (b) the date of Maturity of such Note.

     "RELATED SERIES OF NOTES" shall mean, when used in reference to the First
Mortgage Bonds, Senior Notes Series AA, the Company's 5.25% Senior Secured Notes
due 2012, and, when used in reference to another series of Senior Note First
Mortgage Bonds, shall mean the series of Notes in respect of which such series
of Senior Note First Mortgage Bonds were delivered to the Trustee pursuant to
Section 4.09 hereof upon the initial authentication and issuance of such series
of Notes pursuant to Section 2.05 hereof.

     "RELATED SERIES OF SENIOR NOTE FIRST MORTGAGE BONDS" shall mean, when used
in reference to the Company's 5.25% Senior Secured Notes due 2012, the First
Mortgage Bonds, Senior Notes Series AA, and, when used in reference to any other
series of Notes, shall mean the series of Senior Note First Mortgage Bonds
delivered to the Trustee pursuant to Section 4.09 hereof in connection with the
initial authentication and issuance of such series of Notes pursuant to Section
2.05 hereof.

     "RELEASE DATE" shall mean the date as of which all First Mortgage Bonds
have been retired through payment, redemption, or otherwise at, before or after
the maturity thereof.

     "RESPONSIBLE OFFICER" or "RESPONSIBLE OFFICERS" when used with respect to
the Trustee shall mean one or more of the following: any assistant vice
president, any assistant treasurer, any trust officer, any assistant trust
officer, or any other officer or assistant officer of the Trustee customarily
performing functions similar to those performed by the persons who at the time
shall be such officers, respectively, or to whom any corporate trust matter is
referred because of his or her knowledge of and familiarity with the particular
subject.

     "SALE AND LEASE-BACK TRANSACTION" shall mean any arrangement with any
Person providing for the leasing to the Company of any Operating Property
(except for leases for

                                        6
<Page>

a term, including any renewal thereof, of not more than forty-eight (48)
months), which Operating Property has been or is to be sold or transferred by
the Company to such Person; PROVIDED, HOWEVER, Sale and Lease-Back Transaction
shall not include any arrangement first entered into prior to the date of this
Indenture.

     "SENIOR NOTE FIRST MORTGAGE BONDS" shall mean the First Mortgage Bonds,
Senior Notes Series AA issued by the Company pursuant to the Supplemental
Indenture to the First Mortgage dated August 15, 2002 and any other first
mortgage bonds issued by the Company under the First Mortgage pursuant to
supplemental indentures to the First Mortgage and delivered to the Trustee
pursuant to Section 4.09 hereof.

     "SPECIAL RECORD DATE" shall mean, with respect to any Note, the date
established by the Trustee in connection with the payment of defaulted interest
on such Note pursuant to Section 2.11 hereof.

     "STATED MATURITY" shall mean with respect to any Note, the last date on
which principal on such Note becomes due and payable as therein or herein
provided, other than by declaration of acceleration or by redemption.

     "SUBSIDIARY" shall mean, as to any Person, any corporation or other entity
of which at least a majority of the securities or other ownership interest
having ordinary voting power (absolutely or contingently) for the election of
directors or other Persons performing similar functions are at the time owned
directly or indirectly by such Person.

     "TRUSTEE" shall mean The Bank of New York and, subject to Article IX, shall
also include any successor Trustee.

     "U.S. GOVERNMENT OBLIGATIONS" shall mean (i) direct non-callable
obligations of, or non-callable obligations guaranteed as to timely payment of
principal and interest by, the United States of America or obligations of a
person controlled or supervised by and acting as an agency or instrumentality
thereof for the payment of which obligations or guarantees the full faith and
credit of the United States is pledged or (ii) certificates or receipts
representing direct ownership interests in obligations or specified portions
(such as principal or interest) of obligations described in clause (i) above,
which obligations are held by a custodian in safekeeping in a manner
satisfactory to the Trustee.

     "VALUE" shall mean, with respect to a Sale and Lease-Back Transaction, as
of any particular time, the amount equal to the greater of (i) the net proceeds
to the Company from the sale or transfer of the property leased pursuant to such
Sale and Lease-Back Transaction and (ii) the net book value of such property, as
determined in accordance with generally accepted accounting principles by the
Company at the time of entering into such Sale and Lease-Back Transaction, in
either case multiplied by a fraction, the numerator of which shall be equal to
the number of full years of the term of the lease that is part of such Sale and
Lease-Back Transaction remaining at the time of determination and the
denominator of which shall be equal to the number of full years of such term,
without regard, in any case, to any renewal or extension options contained in
such lease.

                                        7
<Page>

                                   ARTICLE II

                    FORM, ISSUE, EXECUTION, REGISTRATION AND
                                EXCHANGE OF NOTES

     Section 2.01   FORMS GENERALLY. (a) If the Notes are in the form of a
Global Note they shall be in substantially the form set forth in Exhibit A (or,
following the Release Date, Exhibit C) to this Indenture, and, if the Notes are
not in the form of a Global Note, they shall be in substantially the form set
forth in Exhibit B (or, following the Release Date, Exhibit D) to this
Indenture, or, in any case, in such other form as shall be established by a
Company Order pursuant to Section 2.05(c) hereof, or in one or more indentures
supplemental hereto, in each case with such appropriate insertions, omissions,
substitutions and other variations as are required or permitted by this
Indenture, and may have such letters, numbers or other marks of identification
and such legends or endorsements placed thereon as may be required to comply
with applicable rules of any securities exchange or of the Depositary or with
applicable law or as may, consistently herewith, be determined by the officers
executing such Notes, as evidenced by their execution of such Notes.

            (b)     The definitive Notes shall be typed, printed, lithographed
or engraved on steel engraved borders or may be produced in any other manner,
all as determined by the officers executing such Notes, as evidenced by their
execution of such Notes.

     Section 2.02   FORM OF TRUSTEE'S CERTIFICATE OF AUTHENTICATION. The
Trustee's certificate of authentication on all Notes shall be in substantially
the following form:

                     Trustee's Certificate of Authentication

     This Note is one of the Notes of the series herein designated, described or
provided for in the within-mentioned Indenture.

                                     The Bank of New York, As Trustee

                                     By:
                                        -------------------------------
                                        Authorized Signatory

     Section 2.03   AMOUNT UNLIMITED. The aggregate principal amount of Notes
that may be authenticated and delivered under this Indenture is unlimited,
subject to compliance with the provisions of this Indenture.

     Section 2.04   DENOMINATIONS, DATES, INTEREST PAYMENT AND RECORD DATES. (a)
The Notes of each series shall be issuable in registered form without coupons in
denominations of $1,000 and integral multiples thereof or such other amount or
amounts as may be authorized by the Board of Directors or a Company Order
pursuant to a Board Resolution or in one or more indentures supplemental hereto;
PROVIDED, that the principal amount of a Global Note shall not exceed
$500,000,000 unless otherwise permitted by the Depositary.

                                        8
<Page>

            (b)     Each Note shall be dated and issued as of the date of its
authentication by the Trustee, and shall bear an Original Issue Date; each Note
issued upon transfer, exchange or substitution of a Note shall bear the Original
Issue Date or Dates of such transferred, exchanged or substituted Note, subject
to the provisions of Section 2.13(d) hereof.

            (c)     Each Note shall accrue interest from the later of (1) its
Original Issue Date or the date specified in such Note and (2) the most recent
date to which interest has been paid or duly provided for with respect to such
Note until the principal of such Note is paid or made available for payment, and
interest on each Note shall be payable on each Interest Payment Date after the
Original Issue Date.

            (d)     Each Note shall mature on a Stated Maturity specified in the
Note. The principal amount of each outstanding Note shall be payable on the
Stated Maturity date specified therein.

            (e)     Unless otherwise specified in a Company Order pursuant to
Section 2.05 hereof, interest on each of the Notes shall be calculated on the
basis of a 360-day year of twelve 30-day months (and for any partial periods
shall be calculated on the basis of the number of days elapsed in a 360-day year
of twelve 30-day months) and shall be computed at a fixed rate until the Stated
Maturity of such Notes. The method of computing interest on any Notes not
bearing a fixed rate of interest shall be set forth in a Company Order pursuant
to Section 2.05 hereof. Unless otherwise specified in a Company Order pursuant
to Section 2.05 hereof, principal, interest and premium on the Notes shall be
payable in the currency of the United States.

            (f)     Except as provided in the following sentence, the Person in
whose name any Note is registered at the close of business on any Regular Record
Date or Special Record Date with respect to an Interest Payment Date for such
Note shall be entitled to receive the interest payable on such Interest Payment
Date notwithstanding the cancellation of such Note upon any registration of
transfer, exchange or substitution of such Note subsequent to such Regular
Record Date or Special Record Date and prior to such Interest Payment Date. Any
interest payable at Maturity shall be paid to the Person to whom the principal
of such Note is payable.

            (g)     So long as the Trustee is the registrar and paying agent,
the Trustee shall, as soon as practicable but no later than the Regular Record
Date preceding each applicable Interest Payment Date, provide to the Company a
list of the principal, interest and premium to be paid on Notes on such Interest
Payment Date. The Trustee shall assume responsibility for withholding taxes on
interest paid as required by law except with respect to any Global Note.

     Section 2.05   EXECUTION, AUTHENTICATION, DELIVERY AND DATING.

            (a)     The Notes shall be executed on behalf of the Company by one
of its Chairman, President, any Vice President (whether or not designated by a
number or numbers or a word or words added before or after the title "Vice
President"), its Treasurer or an Assistant Treasurer of the Company and attested
by the Secretary or an Assistant Secretary of the Company. The signature of any
of these officers on the Notes may be manual or facsimile.

                                        9
<Page>

Typographical and other minor errors or defects in any such signature shall not
affect the validity or enforceability of any Note that has been duly
authenticated and delivered by the Trustee.

            (b)     Notes bearing the manual or facsimile signatures of
individuals who were at the time of execution the proper officers of the Company
shall bind the Company, notwithstanding that such individuals or any of them
have ceased to hold such offices prior to the authentication and delivery of
such Notes or did not hold such offices at the date of such Notes.

            (c)     At any time and from time to time after the execution and
delivery of this Indenture, the Company may deliver Notes of any series executed
by the Company to the Trustee for authentication, together with or preceded by
one or more Company Orders for the authentication and delivery of such Notes,
and the Trustee in accordance with any such Company Order shall authenticate and
make available for delivery such Notes; provided, however, that, with respect to
Notes of a series subject to a Periodic Offering, (A) such Company Order may be
delivered by the Company to the Trustee prior to the delivery to the Trustee of
such Notes for authentication and delivery, (B) the Trustee shall authenticate
and deliver Notes of such series for original issue from time to time, in an
aggregate principal amount not exceeding the aggregate principal amount
established for such series, all pursuant to a further Company Order or pursuant
to such procedures acceptable to the Trustee as may be specified from time to
time by such further Company Order, (C) the Stated Maturity or Maturities,
Original Issue Date or Dates, interest rate or rates and any other terms of
Notes of such series shall be determined by such further Company Order or
pursuant to such procedures and (D) if provided for in such procedures, such
Company Order may authorize authentication and delivery pursuant to oral or
electronic instructions from the Company or its duly authorized agent or agents,
which oral instructions shall be promptly confirmed in writing. Such Company
Order shall specify the following with respect to each series of Notes: (i) the
title of the Notes of such series (which shall distinguish the Notes of such
series from Notes of all other series) and any limitations on the aggregate
principal amount of the Notes to be issued as part of such series, (ii) the
Original Issue Date for such series, (iii) the Stated Maturity of Notes of such
series, (iv) the interest rate or rates, or method of calculation of such rate
or rates, for such series and the date from which such interest will accrue, (v)
the terms, if any, regarding the optional or mandatory redemption of such
series, including redemption date or dates of such series, if any, and the price
or prices applicable to such redemption, (vi) whether or not the Notes of such
series shall be issued in whole or in part in the form of a Global Note and, if
so, the Depositary for such Global Note if not DTC, (vii) if the form of the
Notes of such series is not as described in Exhibit A, Exhibit B, Exhibit C or
Exhibit D hereto, the form of the Notes of such series, (viii) the maximum
annual interest rate, if any, of the Notes permitted for such series, (ix) the
period or periods within which, the price or prices at which and the terms and
conditions upon which such series may be repaid, in whole or in part, at the
option of the Holder thereof, (x) if prior to the Release Date, the designation
of the Related Series of Senior Note First Mortgage Bonds being delivered to the
Trustee in connection with the issuance of such series of Notes, (xi) the
establishment of any office or agency pursuant to Section 6.02 hereof, and (xii)
any other terms of such series not inconsistent with this Indenture. With
respect to Notes of a series subject to a Periodic Offering, such Company Order
may provide general terms or parameters for Notes of such series and provide
either that the specific terms of particular Notes of such series shall be
specified in a further Company Order or that such terms shall be determined by
the Company or its agents in accordance with such further Company Order as
contemplated by the proviso of the

                                       10
<Page>

first sentence of this Section 2.05(c). Prior to authenticating Notes of any
series, and in accepting the additional responsibilities under this Indenture in
relation to such Notes, the Trustee shall receive from the Company the following
at or before the issuance of such series of Notes, and (subject to Section 9.01
hereof) shall be fully protected in relying upon, unless and until such
documents have been superseded or revoked prior to such issuance:

                    (1)    A Board Resolution authorizing such Company Order or
     Orders and, if the form of Notes is established by a Board Resolution or a
     Company Order pursuant to a Board Resolution, a copy of such Board
     Resolution;

                    (2)    At the option of the Company, either an Opinion of
     Counsel or a letter addressed to the Trustee permitting it to rely on an
     Opinion of Counsel, stating substantially the following subject to
     customary qualifications and exceptions:

                           (A)  if the form of such Notes has been established
            by or pursuant to a Board Resolution, a Company Order pursuant to a
            Board Resolution, or in a supplemental indenture as permitted by
            Section 2.01 hereof, that such form has been established in
            conformity with this Indenture;

                           (B)  that the Indenture has been duly authorized,
            executed and delivered by the Company and constitutes a valid and
            binding obligation of the Company, enforceable against the Company
            in accordance with its terms, except as may be limited by applicable
            bankruptcy, insolvency, reorganization, fraudulent conveyance,
            moratorium or similar laws of general application relating to or
            affecting the enforcement of creditors' rights, the application of
            general principles of equity (regardless of whether such application
            is made in a proceeding at law or in equity) and by an implied
            covenant of good faith and fair dealing and except as enforcement of
            provisions of the Indenture may be limited by state laws affecting
            the remedies for the enforcement of the security provided for in the
            Indenture;

                           (C)  if prior to the Release Date, that the Related
            Series of Senior Note First Mortgage Bonds being delivered to the
            Trustee in connection with the issuance of such series of Notes have
            been duly authorized, executed and delivered, and that such Senior
            Note First Mortgage Bonds are valid and binding obligations of the
            Company, enforceable against the Company in accordance with their
            terms, except as may be limited by applicable bankruptcy,
            insolvency, reorganization, fraudulent conveyance, moratorium or
            similar laws of general application relating to or affecting the
            enforcement of creditors' rights and the application of general
            principles of equity (regardless of whether such application is made
            in a proceeding at law or in equity) and by an implied covenant of
            good faith and fair dealing and except as enforcement of provisions
            thereof may be limited by state laws affecting the remedies for the
            enforcement of the security provided for in the First Mortgage; and
            that such Senior Note First Mortgage Bonds are entitled to the
            benefit of the First Mortgage, equally and ratably, with all First
            Mortgage Bonds and other Senior Note First Mortgage Bonds (if any)
            outstanding thereunder, except as to sinking fund provisions;

                                       11
<Page>

                           (D)  that this Indenture and, if prior to the Release
            Date, the First Mortgage are qualified to the extent necessary under
            the TIA;

                           (E)  that such Notes have been duly authorized and
            executed by the Company, and when authenticated by the Trustee and
            issued by the Company in the manner and subject to any conditions
            specified in such Opinion of Counsel, will constitute valid and
            binding obligations of the Company, enforceable against the Company
            in accordance with their terms, except as may be limited by
            applicable bankruptcy, insolvency, reorganization, fraudulent
            conveyance, moratorium or similar laws of general application
            relating to or affecting the enforcement of creditors' rights, the
            application of general principles of equity (regardless of whether
            such application is made in a proceeding at law or in equity) and by
            an implied covenant of good faith and fair dealing and except as
            enforcement of provisions of this Indenture may be limited by state
            laws affecting the remedies for the enforcement of the security
            provided for in this Indenture;

                           (F)  that the issuance of such Notes and, if prior to
            the Release Date, the delivery by the Company of the Related Series
            of Senior Note First Mortgage Bonds in connection therewith will not
            result in any default under this Indenture or (if applicable) the
            First Mortgage;

                           (G)  that all consents or approvals of the Missouri
            Public Service Commission (or any successor agency), the Illinois
            Commerce Commission (or any successor agency) and of any other
            federal or state regulatory agency required in connection with the
            Company's execution and delivery of this Indenture, such Notes and
            any Senior Note First Mortgage Bonds have been obtained and are in
            full force and effect (except that no statement need be made with
            respect to state securities laws);

                           (H)  if prior to the Release Date, that the First
            Mortgage and all financing statements have been duly filed and
            recorded in all places where such filing or recording is necessary
            for the perfection or preservation of the lien of the First
            Mortgage, and the First Mortgage constitutes a valid and perfected
            first lien upon the property purported to be covered thereby,
            subject only to "permitted liens" and certain "judgment liens" (each
            as defined in the First Mortgage) and to liens upon the property, if
            any, specifically identified in the supplemental indenture related
            to a Related Series of Senior Note First Mortgage Bonds prior to its
            recordation; and

                           (I)  that all conditions that must be met by the
            Company to issue Notes under this Indenture have been met.

                    (3)    If prior to the Release Date, the certificate of an
     Expert meeting the requirements of Section 4.06(a) hereof and a series of
     Senior Note First Mortgage Bonds meeting the requirements of Section 4.10
     hereof.

                                       12
<Page>

                    (4)    An Officers' Certificate stating that (i) the Company
     is not, and upon the authentication by the Trustee of such Notes, will not
     be in default under any of the terms or covenants contained in this
     Indenture, (ii) all conditions that must be met by the Company to issue
     Notes under this Indenture have been met, and (iii) if prior to the Release
     Date, the Related Series of Senior Note First Mortgage Bonds being
     delivered to the Trustee meets the requirements of Section 4.10 hereof.

            (d)     No Note shall be entitled to any benefit under this
Indenture or be valid or obligatory for any purpose unless there appears on such
Note a certificate of authentication substantially in the form provided for
herein executed by the Trustee by the manual signature of an authorized officer,
and such certificate upon any Note shall be conclusive evidence, and the only
evidence, that such Note has been duly authenticated and delivered hereunder and
is entitled to the benefits of this Indenture.

            (e)     If all Notes of a series are not to be authenticated and
issued at one time in connection with a Periodic Offering, the Company shall not
be required to deliver the Company Order, Board Resolution, certificate of an
Expert, Senior Note First Mortgage Bonds, Officers' Certificate and Opinion of
Counsel (including any of the foregoing that would be otherwise required
pursuant to Section 15.05 hereof) described in Section 2.05(c) hereof at or
prior to the authentication of each Note of such series, if such items are
delivered at or prior to the time of authentication of the first Note of such
series to be authenticated and issued.

     Section 2.06   EXCHANGE AND REGISTRATION OF TRANSFER OF NOTES. (a) Subject
to Section 2.13 hereof, Notes of any series may be exchanged for one or more new
Notes of the same series of any authorized denominations and of a like aggregate
principal amount, series and Stated Maturity and having the same terms and
Original Issue Date. Notes to be exchanged shall be surrendered at any of the
offices or agencies to be maintained pursuant to Section 6.02 hereof, and the
Trustee shall authenticate and deliver in exchange therefor the Note or Notes of
such series which the Noteholder making the exchange shall be entitled to
receive.

            (b)     The Trustee shall keep, at one of said offices or agencies,
a register or registers in which, subject to such reasonable regulations as it
may prescribe, the Trustee shall register or cause to be registered Notes and
shall register or cause to be registered the transfer of Notes as in this
Article II provided. Such register shall be in written form or in any other form
capable of being converted into written form within a reasonable time. At all
reasonable times, such register shall be open for inspection by the Company.
Upon due presentment for registration of transfer of any Note at any such office
or agency, the Company shall execute and the Trustee shall register,
authenticate and deliver in the name of the transferee or transferees one or
more new Notes of any authorized denominations and of a like aggregate principal
amount, series and Stated Maturity and having the same terms and Original Issue
Date.

            (c)     All Notes presented for registration of transfer or for
exchange, redemption or payment shall be duly endorsed by, or be accompanied by
a written instrument or instruments of transfer in form satisfactory to the
Company and the Trustee and duly executed by the Holder or the attorney in fact
of such Holder duly authorized in writing.

                                       13
<Page>

            (d)     No service charge shall be made for any exchange or
registration of transfer of Notes, but the Company may require payment of a sum
sufficient to cover any tax or other governmental charge that may be imposed in
connection therewith.

            (e)     The Trustee shall not be required to exchange or register
the transfer of any Notes selected, called or being called for redemption
(including Notes, if any, redeemable at the option of the Holder provided such
Notes are then redeemable at such Holder's option) except, in the case of any
Note to be redeemed in part, the portion thereof not to be so redeemed.

            (f)     If the principal amount, and applicable premium, of part,
but not all of a Global Note is paid, then upon surrender to the Trustee of such
Global Note, the Company shall execute, and the Trustee shall authenticate,
deliver and register, a Global Note in an authorized denomination in aggregate
principal amount equal to, and having the same terms, Original Issue Date and
series as, the unpaid portion of such Global Note.

     Section 2.07   MUTILATED, DESTROYED, LOST OR STOLEN NOTES. (a) If any
temporary or definitive Note shall become mutilated or be destroyed, lost or
stolen, the Company shall execute, and upon its written request the Trustee
shall authenticate and deliver, a new Note of like form and principal amount and
having the same terms and Original Issue Date and bearing a number not
contemporaneously outstanding, in exchange and substitution for the mutilated
Note, or in lieu of and in substitution for the Note so destroyed, lost or
stolen. In every case the applicant for a substituted Note shall furnish to the
Company, the Trustee and any paying agent or Authenticating Agent such security
or indemnity as may be required by them to save each of them harmless, and, in
every case of destruction, loss or theft of a Note, the applicant shall also
furnish to the Company and to the Trustee evidence to their satisfaction of the
destruction, loss or theft of such Note and of the ownership thereof.

            (b)     The Trustee shall authenticate any such substituted Note and
deliver the same upon the written request or authorization of any officer of the
Company. Upon the issuance of any substituted Note, the Company may require the
payment of a sum sufficient to cover any tax or other governmental charge that
may be imposed in relation thereto and any other expenses connected therewith.
If any Note which has matured, is about to mature or has been called for
redemption shall become mutilated or be destroyed, lost or stolen, the Company
may, instead of issuing a substituted Note, pay or authorize the payment of the
same (without surrender thereof except in the case of a mutilated Note) if the
applicant for such payment shall furnish to the Company, the Trustee and any
paying agent or Authenticating Agent such security or indemnity as may be
required by them to save each of them harmless and, in case of destruction, loss
or theft, evidence satisfactory to the Company and the Trustee of the
destruction, loss or theft of such Note and of the ownership thereof.

            (c)     Every substituted Note issued pursuant to this Section 2.07
by virtue of the fact that any Note is mutilated, destroyed, lost or stolen
shall constitute an additional contractual obligation of the Company, whether or
not such destroyed, lost or stolen Note shall be found at any time, and shall be
entitled to all the benefits of this Indenture equally and proportionately with
any and all other Notes duly issued hereunder. All Notes shall be held and owned
upon the express condition that, to the extent permitted by law, the foregoing
provisions are exclusive with respect to the replacement or payment of
mutilated, destroyed, lost or stolen Notes and shall

                                       14
<Page>

preclude to the full extent permitted by applicable law any and all other rights
or remedies with respect to the replacement or payment of negotiable instruments
or other securities without their surrender.

     Section 2.08   TEMPORARY NOTES. Pending the preparation of definitive Notes
of any series, the Company may execute and the Trustee shall authenticate and
deliver temporary Notes (printed, lithographed or otherwise reproduced).
Temporary Notes shall be issuable in any authorized denomination and
substantially in the form of the definitive Notes but with such omissions,
insertions and variations as may be appropriate for temporary Notes, all as may
be determined by the Company. Every such temporary Note shall be authenticated
by the Trustee upon the same conditions and in substantially the same manner,
and with the same effect, as the definitive Notes. Without unreasonable delay
the Company shall execute and shall deliver to the Trustee definitive Notes of
such series and thereupon any or all temporary Notes of such series shall be
surrendered in exchange therefor at the corporate trust office of the Trustee,
and the Trustee shall authenticate, deliver and register in exchange for such
temporary Notes an equal aggregate principal amount of definitive Notes of such
series. Such exchange shall be made by the Company at its own expense and
without any charge therefor to the Noteholders. Until so exchanged, the
temporary Notes of such series shall in all respects be entitled to the same
benefits under this Indenture as definitive Notes of such series authenticated
and delivered hereunder.

     Section 2.09   CANCELLATION OF NOTES PAID, ETC. All Notes surrendered for
the purpose of payment, redemption, exchange or registration of transfer shall
be surrendered to the Trustee for cancellation and promptly cancelled by it and
no Notes shall be issued in lieu thereof except as expressly permitted by this
Indenture. The Company shall surrender to the Trustee any Notes so acquired by
it and such Notes shall be cancelled by the Trustee. No Notes shall be
authenticated in lieu of or in exchange for any Notes so cancelled.

     Section 2.10   INTEREST RIGHTS PRESERVED. Each Note delivered under this
Indenture upon transfer of or in exchange for or in lieu of any other Note shall
carry all the rights to interest accrued and unpaid, and to accrue, which were
carried by such other Note, and each such Note shall be so dated that neither
gain nor loss of interest shall result from such transfer, exchange or
substitution.

     Section 2.11   SPECIAL RECORD DATE. If and to the extent that the Company
fails to make timely payment or provision for timely payment of interest on any
series of Notes (other than on an Interest Payment Date that is a Maturity
date), that interest shall cease to be payable to the Persons who were the
Noteholders of such series at the applicable Regular Record Date. In that event,
when moneys become available for payment of the interest, the Trustee shall (a)
establish a date of payment of such interest and a Special Record Date for the
payment of that interest, which Special Record Date shall be not more than 15 or
fewer than 10 days prior to the date of the proposed payment and (b) mail notice
of the date of payment and of the Special Record Date not fewer than 10 days
preceding the Special Record Date to each Noteholder of such series at the close
of business on the 15th day preceding the mailing at the address of such
Noteholder, as it appeared on the register for the Notes. On the day so
established by the Trustee the interest shall be payable to the Holders of the
applicable Notes at the close of business on the Special Record Date.

                                       15
<Page>

     Section 2.12   PAYMENT OF NOTES. Payment of the principal of and interest
and premium on all Notes shall be payable as follows:

            (a)     On or before 9:30 a.m., New York City time, or such other
time as shall be agreed upon between the Trustee and the Company, of the day on
which payment of principal, interest and premium is due on any Global Note
pursuant to the terms thereof, the Company shall deliver to the Trustee funds
available on such date sufficient to make such payment, by wire transfer of
immediately available funds or by instructing the Trustee to withdraw sufficient
funds from an account maintained by the Company with the Trustee or such other
method as is acceptable to the Trustee. On or before 12:00 noon, New York City
time, or such other time as shall be agreed upon between the Trustee and the
Depositary, of the day on which any payment of interest is due on any Global
Note (other than at Maturity), the Trustee shall pay to the Depositary such
interest in same day funds. On or before 1:00 p.m., New York City time or such
other time as shall be agreed upon between the Trustee and the Depositary, of
the day on which principal, interest payable at Maturity and premium, if any, is
due on any Global Note, the Trustee shall deposit with the Depositary the amount
equal to the principal, interest payable at Maturity and premium, if any, by
wire transfer into the account specified by the Depositary. As a condition to
the payment, at Maturity, of any part of the principal of, interest on and
applicable premium of any Global Note, the Depositary shall surrender, or cause
to be surrendered, such Global Note to the Trustee, whereupon a new Global Note
shall be issued to the Depositary pursuant to Section 2.06(f) hereof.

            (b)     With respect to any Note that is not a Global Note,
principal, applicable premium and interest due at the Maturity of the Note shall
be payable in immediately available funds when due upon presentation and
surrender of such Note at the corporate trust office of the Trustee or at the
authorized office of any paying agent in the Borough of Manhattan, The City and
State of New York. Interest on any Note that is not a Global Note (other than
interest payable at Maturity) shall be paid by check payable in clearinghouse
funds mailed to the Holder thereof at such Holder's address as it appears on the
register; PROVIDED that if the Trustee receives a written request from any
Holder of Notes, the aggregate principal amount of which having the same
Interest Payment Date equals or exceeds $10,000,000, on or before the applicable
Regular Record Date for such Interest Payment Date, interest on such Note shall
be paid by wire transfer of immediately available funds to a bank within the
continental United States designated by such Holder in its request or by direct
deposit into the account of such Holder designated by such Holder in its request
if such account is maintained with the Trustee or any paying agent.

            (c)     The Trustee shall receive the Senior Note First Mortgage
Bonds from the Company as provided in this Indenture and shall hold the Senior
Note First Mortgage Bonds, and any and all sums payable thereon or with respect
thereto or realized therefrom, in trust for the benefit of the holders of the
Notes, as herein provided. Subject to Article XIII hereof, all payments made by
or on behalf of the Company to the Trustee on a series of Senior Note First
Mortgage Bonds shall be deemed to be a payment by the Company pursuant to this
Section 2.12 and shall be applied by the Trustee to pay, when due, principal of,
premium, if any, and/or interest on the Related Series of Notes and, to the
extent so applied, shall satisfy the Company's obligations on such Notes. The
Company shall cause payment to be made to the Trustee of principal of, premium,
if any, and (if applicable) interest on a series of Senior Note First

                                       16
<Page>

Mortgage Bonds in a manner and at a time that will enable the Trustee to make
payments when due, of the principal of, premium, if any, and interest on the
Related Series of Notes.

     Section 2.13   NOTES ISSUABLE IN THE FORM OF A GLOBAL NOTE. (a) If the
Company shall establish pursuant to Section 2.05 hereof that the Notes of a
particular series are to be issued in the form of one or more Global Notes, then
the Company shall execute and the Trustee shall, in accordance with Section 2.05
hereof and the Company Order delivered to the Trustee thereunder, authenticate
and deliver such Global Note or Notes, which, unless otherwise specified in such
Company Order, (i) shall represent, shall be denominated in an amount equal to
the aggregate principal amount of, and shall have the same terms as, the
outstanding Notes of such series to be represented by such Global Note or Notes,
(ii) shall be registered in the name of the Depositary or its nominee, (iii)
shall be delivered by the Trustee to the Depositary or pursuant to the
Depositary's instruction and (iv) shall bear a legend substantially to the
following effect: "This Note is a Global Note registered in the name of the
Depositary (referred to herein) or a nominee thereof and, unless and until it is
exchanged in whole for the individual Notes represented hereby as provided in
the Indenture referred to below, this Global Note may not be transferred except
as a whole by the Depositary to a nominee of the Depositary or by a nominee of
the Depositary to the Depositary or another nominee of the Depositary or by the
Depositary or any such nominee to a successor Depositary or a nominee of such
successor Depositary. Unless this Global Note is presented by an authorized
representative of The Depository Trust Company (55 Water Street, New York, New
York) to the Trustee for registration of transfer, exchange or payment, and any
certificate issued is registered in the name of Cede & Co. or such other name as
requested by an authorized representative of The Depository Trust Company and
any payment is made to Cede & Co., any transfer, pledge or other use hereof for
value or otherwise by or to any person is wrongful since the registered owner
hereof, Cede & Co., has an interest herein" or such other legend as may be
required by the rules and regulations of the Depositary.

            (b)     (i)    If at any time the Depositary for a Global Note
notifies the Company that it is unwilling or unable to continue as Depositary
for such Global Note or if at any time the Depositary for the Global Note shall
no longer be eligible or in good standing under the Securities Exchange Act of
1934 or other applicable statute or regulation, the Company shall appoint a
successor Depositary with respect to such Global Note. If a successor Depositary
for such Global Note is not appointed by the Company within 90 days after the
Company receives such notice or becomes aware of such ineligibility, the
Company's election pursuant to Section 2.05(c)(vi) hereof shall no longer be
effective with respect to the series of Notes evidenced by such Global Note and
the Company shall execute, and the Trustee, upon receipt of a Company Order for
the authentication and delivery of individual Notes of such series in exchange
for such Global Note, shall authenticate and deliver, individual Notes of such
series of like tenor and terms in definitive form in an aggregate principal
amount equal to the principal amount of such Global Note in exchange for such
Global Note. The Trustee shall not be charged with knowledge or notice of the
ineligibility of a Depositary unless a Responsible Officer shall have actual
knowledge thereof.

                    (ii)   (A)  The Company may at any time and in its sole
     discretion determine that all (but not less than all) outstanding Notes of
     a series issued or issuable in the form of one or more Global Notes shall
     no longer be represented by such Global Note or Notes. In such event the
     Company shall execute, and the Trustee, upon receipt of a

                                       17
<Page>

     Company Order for the authentication and delivery of individual Notes in
     exchange for such Global Note, shall authenticate and deliver individual
     Notes of like tenor and terms in definitive form in an aggregate principal
     amount equal to the principal amount of such Global Note or Notes in
     exchange for such Global Note or Notes.

                           (B)  Within seven days after the occurrence of an
            Event of Default with respect to any series of Global Notes, the
            Company shall execute, and the Trustee shall authenticate and
            deliver, Notes of such series in definitive registered form in any
            authorized denominations and in aggregate principal amount equal to
            the principal amount of such Global Notes in exchange for such
            Global Notes.

                    (iii)  In any exchange provided for in any of the preceding
     two paragraphs, the Company will execute and the Trustee will authenticate
     and deliver individual Notes in definitive registered form in authorized
     denominations. Upon the exchange of a Global Note for individual Notes,
     such Global Note shall be cancelled by the Trustee. Notes issued in
     exchange for a Global Note pursuant to this Section shall be registered in
     such names and in such authorized denominations as the Depositary for such
     Global Note, pursuant to instructions from its direct or indirect
     participants or otherwise, shall instruct the Trustee. The Trustee shall
     deliver such Notes to the Depositary for delivery to the persons in whose
     names such Notes are so registered, or if the Depositary shall refuse or be
     unable to deliver such Notes, the Trustee shall deliver such Notes to the
     persons in whose names such Notes are registered, unless otherwise agreed
     upon between the Trustee and the Company, in which event the Company shall
     cause the Notes to be delivered to the persons in whose names such Notes
     are registered.

            (c)     Neither the Company, the Trustee, any Authenticating Agent
nor any paying agent shall have any responsibility or liability for any aspect
of the records relating to, or payments made on account of, beneficial ownership
interests of a Global Note or for maintaining, supervising or reviewing any
records relating to such beneficial ownership interest.

            (d)     Pursuant to the provisions of this subsection, at the option
of the Trustee (subject to Section 2.04(a) hereof) and upon 30 days' written
notice to the Depositary but not prior to the first Interest Payment Date of the
respective Global Notes, the Depositary shall be required to surrender any two
or more Global Notes which have identical terms, including, without limitation,
identical maturities, interest rates and redemption provisions (but which may
have differing Original Issue Dates) to the Trustee, and the Company shall
execute and the Trustee shall authenticate and deliver to, or at the direction
of, the Depositary a Global Note in principal amount equal to the aggregate
principal amount of, and with all terms identical to, the Global Notes
surrendered thereto and that shall indicate each applicable Original Issue Date
and the principal amount applicable to each such Original Issue Date. The
exchange contemplated in this subsection shall be consummated at least 30 days
prior to any Interest Payment Date applicable to any of the Global Notes
surrendered to the Trustee. Upon any exchange of any Global Note with two or
more Original Issue Dates, whether pursuant to this Section or pursuant to
Section 2.06 or Section 3.03 hereof, the aggregate principal amount of the Notes
with a particular Original Issue Date shall be the same before and after such
exchange, after giving

                                       18
<Page>

effect to any retirement of Notes and the Original Issue Dates applicable to
such Notes occurring in connection with such exchange.

     Section 2.14   CUSIP AND ISIN NUMBERS. The Company in issuing Notes may use
"CUSIP" or "ISIN" numbers (if then generally in use) and, if so used, the
Trustee shall use "CUSIP" or "ISIN" numbers in notices of redemption as a
convenience to holders of Notes; PROVIDED, that any such notice may state that
no representation is made as to the correctness of such numbers either as
printed on the Notes or contained in any notice of redemption and that reliance
may be placed only on the other identification numbers printed on the Notes, and
any such redemption shall not be affected by any defect in or omission of such
numbers. The Company shall promptly notify the Trustee of any change in the
"CUSIP" or "ISIN" numbers.

                                   ARTICLE III

                               REDEMPTION OF NOTES

     Section 3.01   APPLICABILITY OF ARTICLE. Such of the Notes of any series as
are, by their terms, redeemable prior to their Stated Maturity at the option of
the Company, may be redeemed by the Company at such times, in such amounts and
at such prices as may be specified therein and in accordance with the provisions
of this Article III.

     Section 3.02   NOTICE OF REDEMPTION; SELECTION OF NOTES. (a) The election
of the Company to redeem any Notes shall be evidenced by a Board Resolution
which shall be given with notice of redemption to the Trustee at least 45 days
(or such shorter period acceptable to the Trustee in its sole discretion) prior
to the redemption date specified in such notice.

            (b)     Notice of redemption to each Holder of Notes to be redeemed
as a whole or in part shall be given by the Trustee, in the manner provided in
Section 15.10 hereof, no less than 30 or more than 60 days prior to the date
fixed for redemption. Any notice which is given in the manner herein provided
shall be conclusively presumed to have been duly given, whether or not the
Noteholder receives the notice. In any case, failure duly to give such notice,
or any defect in such notice, to the Holder of any Note designated for
redemption as a whole or in part shall not affect the validity of the
proceedings for the redemption of any other Note.

            (c)     Each such notice shall identify the Notes to be redeemed
(including "CUSIP" or "ISIN" numbers) and shall specify the date fixed for
redemption, the places of redemption and the redemption price (or the method for
calculation thereof) at which such Notes are to be redeemed, and shall state
that (subject to subsection (e) of this section) payment of the redemption price
of such Notes or portion thereof to be redeemed will be made upon surrender of
such Notes at such places of redemption, that interest accrued to the date fixed
for redemption will be paid as specified in such notice, and that from and after
such date interest thereon shall cease to accrue. If less than all of a series
of Notes having the same terms are to be redeemed, the notice shall specify the
Notes or portions thereof to be redeemed. If any Note is to be redeemed in part
only, the notice which relates to such Note shall state the portion of the
principal amount thereof to be redeemed, and shall state that, upon surrender of
such Note, a new Note or Notes having the same terms in aggregate principal
amount equal to the unredeemed portion thereof will be issued.

                                       19
<Page>

            (d)     Unless otherwise provided by a Company Order under
Section 2.05 hereof, if less than all of a series of Notes is to be redeemed,
the Trustee shall select in such manner as it shall deem appropriate and fair in
its discretion the particular Notes to be redeemed in whole or in part and shall
thereafter promptly notify the Company and the Depositary in writing of the
Notes so to be redeemed. If less than all of a series of Notes represented by a
Global Note is to be redeemed, the particular Notes or portions thereof of such
series to be redeemed shall be selected by the Trustee for such series of Notes
in such manner as the Trustee shall determine. Notes shall be redeemed only in
denominations of $1,000, PROVIDED that any remaining principal amount of a Note
redeemed in part shall be a denomination authorized under this Indenture.

            (e)     If at the time of the mailing of any notice of redemption at
the option of the Company, the Company shall not have irrevocably directed the
Trustee to apply funds then on deposit with the Trustee or held by it and
available to be used for the redemption of Notes to redeem all the Notes called
for redemption, such notice, at the election of the Company, may state that it
is conditional and subject to the receipt of the redemption moneys by the
Trustee on or before the date fixed for redemption and that such notice shall be
of no force and effect unless such moneys are so received on or before such
date.

     Section 3.03   PAYMENT OF NOTES ON REDEMPTION; DEPOSIT OF REDEMPTION PRICE.
(a) If notice of redemption for any Notes shall have been given as provided in
Section 3.02 hereof and such notice shall not contain the language permitted at
the Company's option under Section 3.02(e) hereof, such Notes or portions of
Notes called for redemption shall become due and payable on the date and at the
places stated in such notice at the applicable redemption price, together with
interest accrued to the date fixed for redemption of such Notes. Interest on the
Notes or portions thereof so called for redemption shall cease to accrue and
such Notes or portions thereof shall be deemed not to be entitled to any benefit
under this Indenture except to receive payment of the redemption price together
with interest accrued thereon to the date fixed for redemption. Upon
presentation and surrender of such Notes at the place of payment specified in
such notice, such Notes or the specified portions thereof shall be paid and
redeemed at the applicable redemption price, together with interest accrued
thereon to the date fixed for redemption.

            (b)     If notice of redemption shall have been given as provided in
Section 3.02 hereof and such notice shall contain the language permitted at the
Company's option under Section 3.02(e) hereof, such Notes or portions of Notes
called for redemption shall become due and payable on the date and at the places
stated in such notice at the applicable redemption price, together with interest
accrued to the date fixed for redemption of such Notes, and interest on the
Notes or portions thereof so called for redemption shall cease to accrue and
such Notes or portions thereof shall be deemed not to be entitled to any benefit
under this Indenture except to receive payment of the redemption price together
with interest accrued thereon to the date fixed for redemption; PROVIDED that,
in each case, the Company shall have deposited with the Trustee or a paying
agent on or prior to 11:00 a.m. New York City time on such redemption date an
amount sufficient to pay the redemption price together with interest accrued to
the date fixed for redemption. Upon the Company making such deposit and, upon
presentation and surrender of such Notes at such a place of payment in such
notice specified, such Notes or the specified portions thereof shall be paid and
redeemed at the applicable redemption price, together with

                                       20
<Page>

interest accrued thereon to the date fixed for redemption. If the Company shall
not make such deposit on or prior to the redemption date, the notice of
redemption shall be of no force and effect and the principal on such Notes or
specified portions thereof shall continue to bear interest as if the notice of
redemption had not been given.

            (c)     No notice of redemption of Notes shall be mailed during the
continuance of any Event of Default, except (1) that, when notice of redemption
of any Notes has been mailed, the Company shall redeem such Notes but only if
funds sufficient for that purpose have prior to the occurrence of such Event of
Default been deposited with the Trustee or a paying agent for such purpose, and
(2) that notices of redemption of all outstanding Notes may be given during the
continuance of an Event of Default.

            (d)     Upon surrender of any Note redeemed in part only, the
Company shall execute, and the Trustee shall authenticate, deliver and register,
a new Note or Notes of authorized denominations in aggregate principal amount
equal to, and having the same terms, Original Issue Date or Dates and series as,
the unredeemed portion of the Note so surrendered.

                                   ARTICLE IV

                        SENIOR NOTE FIRST MORTGAGE BONDS

     Section 4.01   DELIVERY OF INITIAL SERIES OF SENIOR NOTE FIRST MORTGAGE
BONDS. Subject to the provisions of Section 4.11 and Article V hereof, the
Company hereby (a) delivers to the Trustee, in connection with the issuance of a
series of Notes hereunder in an aggregate principal amount of $173,000,000,
Senior Note First Mortgage Bonds bearing the designation "First Mortgage Bonds,
Senior Notes Series AA" in the aggregate principal amount of $173,000,000, fully
registered in the name of the Trustee, in trust for the benefit of the Holders
from time to time of the Notes of such series issued under this Indenture as
security for any and all obligations of the Company under the Notes of such
series, including, but not limited to, (1) the full and prompt payment of the
principal of and premium, if any, on the Notes of such series when and as the
same shall become due and payable in accordance with the terms and provisions of
this Indenture or the Notes of such series, at the Maturity thereof, and (2) the
full and prompt payment of any interest on the Notes of such series when and as
the same shall become due and payable in accordance with the terms and
provisions of this Indenture or the Notes of such series and (b) delivers to the
Trustee the certificate of the Expert required by Section 4.06 hereof (if
required).

     Section 4.02   RECEIPT. The Trustee acknowledges receipt of the Senior Note
First Mortgage Bonds described in Section 4.01 hereof.

     Section 4.03   SENIOR NOTE FIRST MORTGAGE BONDS HELD BY THE TRUSTEE. The
Trustee shall, as the holder of Senior Note First Mortgage Bonds, attend such
meeting or meetings of bondholders under the First Mortgage or, at its option,
deliver its proxy in connection therewith, as relate to matters with respect to
which it is entitled to vote or consent. So long as no Event of Default
hereunder shall have occurred and be continuing, either at any such meeting or
meetings, or otherwise when the consent of the holders of the first mortgage
bonds outstanding under the First Mortgage is sought without a meeting, the
Trustee shall vote all Senior Note First Mortgage

                                       21
<Page>

Bonds then held by it, or consent with respect thereto, in accordance with
instructions provided in a certificate of the Company or the Mortgage Trustee,
which instructions (a) shall direct the Trustee to so vote or consent in
proportion with the vote or consent (as of 9:00 a.m. New York City time on the
day of such vote or consent) of the holders of all other first mortgage bonds
outstanding under the First Mortgage, the holders of which are eligible to vote
or consent and (b) shall set forth said proportions; PROVIDED, HOWEVER, that the
Trustee shall not so vote in favor of, or so consent to, any amendment or
modification of the First Mortgage which, if it were an amendment or
modification of this Indenture, would require the consent of Holders, without
the prior consent, obtained in the manner prescribed in Section 13.02, of
Holders of Notes which would be required under said Section 13.02 for such an
amendment or modification of this Indenture.

     Section 4.04   NO TRANSFER OF SENIOR NOTE FIRST MORTGAGE BONDS; EXCEPTIONS.
Except (i) as required to effect an assignment to a successor trustee under this
Indenture, (ii) pursuant to Section 4.05 or Section 4.08 hereof, or (iii) in
compliance with a final order of a court of competent jurisdiction in connection
with any bankruptcy or reorganization proceeding of the Company, the Trustee
shall not sell, assign or transfer the Senior Note First Mortgage Bonds and the
Company shall issue stop transfer instructions to the Mortgage Trustee and any
transfer agent under the First Mortgage to effect compliance with this Section
4.04.

     Section 4.05   DELIVERY TO THE COMPANY OF ALL SENIOR NOTE FIRST MORTGAGE
BONDS. When the obligation of the Company to make payment with respect to the
principal of and premium, if any, and interest on all Senior Note First Mortgage
Bonds shall be satisfied or deemed satisfied pursuant to Section 4.11 or Section
5.01(b) hereof, the Trustee shall, upon written request of the Company and
receipt of the certificate of the Expert described in Section 4.06(b) hereof (if
such certificate is then required by Section 4.06(b) hereof), deliver to the
Company without charge therefor all of the Senior Note First Mortgage Bonds,
together with such appropriate instruments of transfer or release as may be
reasonably requested by the Company. All Senior Note First Mortgage Bonds
delivered to the Company in accordance with this Section 4.05 shall be delivered
by the Company to the Mortgage Trustee for cancellation.

     Section 4.06   FAIR VALUE CERTIFICATE. (a) If required by applicable law,
upon the delivery by the Company to the Trustee of Senior Note First Mortgage
Bonds pursuant to Section 4.01 or Section 4.09 hereof, the Company shall
simultaneously therewith deliver to the Trustee a certificate of an Expert (1)
stating that he or she is familiar with the provisions of such Senior Note First
Mortgage Bonds and of this Indenture; (2) stating the principal amount of such
Senior Note First Mortgage Bonds so delivered, the stated interest rate (or
method of calculation of interest) of such Senior Note First Mortgage Bonds (if
any) and the stated maturity date of such Senior Note First Mortgage Bonds; (3)
identifying the Notes being issued contemporaneously therewith, and (4) stating
the fair value to the Company of such Senior Note First Mortgage Bonds.

            If the fair value to the Company of the Senior Note First Mortgage
Bonds so delivered, as described in the certificate to be delivered pursuant to
this Section 4.06(a), both (l) is equal to or exceeds (A) $25,000 and (B) 1% of
the principal amount of the Notes outstanding at the date of delivery of such
Senior Note First Mortgage Bonds and (2) together with the fair value to the
Company, as described in the certificates to be delivered pursuant to this
Section

                                       22
<Page>

4.06(a), of all other Senior Note First Mortgage Bonds delivered to the Trustee
since the commencement of the then current calendar year, is equal to or exceeds
10% of the principal amount of the Notes outstanding at the date of delivery of
such Senior Note First Mortgage Bonds, then the certificate required by this
Section 4.06(a) shall (1) be delivered by an Expert who shall be independent of
the Company and (2), in addition to the certifications described above, state
the fair value to the Company of all Senior Note First Mortgage Bonds delivered
to the Trustee pursuant to Section 4.09 hereof since the commencement of the
then current year as to which a certificate was not delivered by an Expert
independent of the Company.

            (b)     If Senior Note First Mortgage Bonds are delivered or
surrendered to the Company pursuant to Section 4.05 or 4.08 hereof, the Company
shall simultaneously therewith deliver to the Trustee a certificate of an Expert
(1) stating that it is familiar with the provisions of such Senior Note First
Mortgage Bonds and of this Indenture, (2) stating the principal amount of such
Senior Note First Mortgage Bonds so delivered, the stated interest rate (or
method of calculation of interest) of such Senior Note First Mortgage Bonds (if
any) and the stated maturity date of such Senior Note First Mortgage Bonds, (3)
if applicable, identifying the Notes, the payment of the interest on and
principal of which has been discharged hereunder, and (4) stating that such
delivery and release will not impair the Lien of this Indenture in contravention
of the provisions of this Indenture. If, prior to the Release Date, the fair
value of the Senior Note First Mortgage Bonds so delivered and released, as
described in the certificate to be delivered pursuant to this Section 4.06(b),
both (l) is equal to or exceeds (A) $25,000 and (B) 1% of the principal amount
of the outstanding Notes at the date of release of such Senior Note First
Mortgage Bonds and (2) together with the fair value, as described in the
certificates to be delivered pursuant to this Section 4.06(b), of all other
Senior Note First Mortgage Bonds released from the lien of this Indenture since
the commencement of the then current calendar year, is equal to or exceeds 10%
of the principal amount of the Notes outstanding at the date of release of such
Senior Note First Mortgage Bonds, then the certificate required by this Section
4.06(b) shall be delivered by an Expert who shall be independent of the Company.

            If, in connection with a delivery or release of outstanding Senior
Note First Mortgage Bonds, the Company provides to the Trustee an Opinion of
Counsel stating that the certificate described by this Section 4.06 is not
required by law, such certificate shall not be required to be delivered
hereunder in connection with such delivery or release.

     Section 4.07   FURTHER ASSURANCES. The Company, at its own expense, shall
do such further lawful acts and things, and execute and deliver such additional
conveyances, assignments, assurances, agreements, financing statements and
instruments, as may be necessary in order to better assign, assure and confirm
to the Trustee its interest in the Senior Note First Mortgage Bonds and for
maintaining, protecting and preserving such interest.

     Section 4.08   EXCHANGE AND SURRENDER OF SENIOR NOTE FIRST MORTGAGE BONDS.
At any time a Note shall cease to be entitled to any lien, benefit or security
under this Indenture pursuant to Section 5.01(b) hereof and the Company shall
have provided the Trustee with notice thereof, the Trustee shall surrender an
equal principal amount of the Related Series of Senior Note First Mortgage
Bonds, subject to the limitations of this Section 4.08, to the Company for
cancellation. The Trustee shall, together with such Senior Note First Mortgage
Bonds, deliver to the Company such appropriate instruments of transfer or
release as the Company may reasonably request. Prior

                                       23
<Page>

to the surrender required by this paragraph, the Trustee shall receive from the
Company the following, and (subject to Section 9.01 hereof) shall be fully
protected in relying upon, an Officers' Certificate stating (i) the aggregate
outstanding principal amount of the Senior Note First Mortgage Bonds of the
series surrendered by the Trustee, after giving effect to such surrender, (ii)
the aggregate outstanding principal amount of the Related Series of Notes and
(iii) that the surrender of the Senior Note First Mortgage Bonds will not result
in any default under this Indenture.

     The Company shall not be permitted to cause the surrender or exchange of
all or any part of a series of Senior Note First Mortgage Bonds contemplated in
this Section, if, after such surrender or exchange, the aggregate outstanding
principal amount of the Related Series of Notes would exceed the aggregate
outstanding principal amount of such series of Senior Note First Mortgage Bonds
held by the Trustee. Any Senior Note First Mortgage Bonds received by the
Company pursuant to this Section 4.08 shall be delivered to the Mortgage Trustee
for cancellation. Notwithstanding anything herein to the contrary, until the
Release Date, the Company shall preserve and maintain the Lien of this
Indenture, and shall not permit, at any time prior to the Release Date, the
aggregate principal amount of Senior Note First Mortgage Bonds held by the
Trustee to be less than the aggregate amount of Notes Outstanding.

     Section 4.09   ACCEPTANCE OF ADDITIONAL SENIOR NOTE FIRST MORTGAGE BONDS.
Upon the issuance of a series of Notes hereunder (other than the initial series
of Notes referred to in Section 4.01 hereof) at any time prior to the Release
Date, the Company shall deliver to the Trustee in trust for the benefit of the
Holders of the Notes as described in Section 4.11 hereof, and the Trustee shall
accept therefor, a Related Series of Senior Note First Mortgage Bonds registered
in the name of the Trustee conforming to the requirements of Section 4.10
hereof.

     Section 4.10   TERMS OF SENIOR NOTE FIRST MORTGAGE BONDS. Each series of
Senior Note First Mortgage Bonds delivered to the Trustee pursuant to Section
4.01 or Section 4.09 hereof shall have the same stated maturity date and shall
be in the same aggregate principal amount as, and have redemption provisions
corresponding to, the Related Series of Notes being issued; it being expressly
understood that such Senior Note First Mortgage Bonds may, but need not, bear
interest, any such interest to be payable on the same Interest Payment Dates as
the Related Series of Notes being issued.

     Section 4.11   SENIOR NOTE FIRST MORTGAGE BONDS AS SECURITY FOR NOTES.
Until the Release Date and subject to Article V hereof, Senior Note First
Mortgage Bonds delivered to the Trustee, for the benefit of the Holders of the
Notes, shall constitute part of the trust estate and security for any and all
obligations of the Company under the Notes, including, but not limited to (1)
the full and prompt payment of the principal of and premium, if any, on such
Notes when and as the same shall become due and payable in accordance with the
terms and provisions of this Indenture or the Notes, either at the stated
maturity thereof, upon acceleration of the maturity thereof or upon redemption,
and (2) the full and prompt payment of any interest on such Notes when and as
the same shall become due and payable in accordance with the terms and
provisions of this Indenture or the Notes.

     Notwithstanding anything in this Indenture to the contrary, from and after
the Release Date, the obligation of the Company to make payment with respect to
the principal of and

                                       24
<Page>

premium, if any, and interest on the Senior Note First Mortgage Bonds shall be
deemed satisfied and discharged as provided in the supplemental indenture or
indentures to the First Mortgage creating such Senior Note First Mortgage Bonds
and the Senior Note First Mortgage Bonds shall cease to secure in any manner
Notes theretofore or subsequently issued. From and after the Release Date, any
conditions to the issuance of Notes that refer or relate to Senior Note First
Mortgage Bonds or the First Mortgage shall be inapplicable. Following the
Release Date, the Company shall cause the First Mortgage to be discharged and
the Company shall not issue any additional First Mortgage Bonds or Senior Note
First Mortgage Bonds under the First Mortgage. The Company shall notify the
Trustee promptly of the occurrence of the Release Date. Notice of the occurrence
of the Release Date shall be given by the Trustee to the Holders of the Notes in
the manner provided in Section 15.10 hereof not later than 30 days after the
Release Date.

                                    ARTICLE V

                  SATISFACTION AND DISCHARGE; UNCLAIMED MONEYS

     Section 5.01   SATISFACTION AND DISCHARGE. (a) If at any time:

                    (1)    the Company shall have paid or caused to be paid the
     principal of and premium, if any, and interest on all the outstanding
     Notes, as and when the same shall have become due and payable,

                    (2)    the Company shall have delivered to the Trustee for
     cancellation all outstanding Notes, or

                    (3)    the Company shall have irrevocably deposited or
     caused to be irrevocably deposited with the Trustee as trust funds the
     entire amount in (A) cash, (B) U.S. Government Obligations maturing as to
     principal and interest in such amounts and at such times as will insure the
     availability of cash, or (C) a combination of cash and U.S. Government
     Obligations, in any case sufficient, without reinvestment, as certified by
     an independent public accounting firm of national reputation in a written
     certification delivered to the Trustee, to pay at maturity or the
     applicable redemption date (provided that notice of redemption shall have
     been duly given or irrevocable provision satisfactory to the Trustee shall
     have been duly made for the giving of any notice of redemption) all
     outstanding Notes, including principal and any premium and interest due or
     to become due to such date of maturity, as the case may be and, unless all
     outstanding Notes are to be due within 90 days of such deposit by
     redemption or otherwise, shall also deliver to the Trustee an opinion of
     counsel expert in federal income tax matters to the effect that the Company
     has received from, or there has been published by, the Internal Revenue
     Service a ruling or similar pronouncement by the Internal Revenue Service
     or that there has been a change of law (collectively, an "External Tax
     Pronouncement"), in either case to the effect that the Holders of the Notes
     will not recognize income, gain or loss for federal income tax purposes as
     a result of such defeasance or discharge of the Indenture and will be
     subject to federal income tax on the same amounts, in the same manner and
     at the same times as would have been the case absent such defeasance or
     discharge of this Indenture,

                                       25
<Page>

and if, in any such case, (x) the Company shall also pay or cause to be paid all
other sums payable hereunder by the Company and (y) the Company has delivered to
the Trustee an Officers' Certificate and an Opinion of Counsel each stating that
all conditions precedent herein provided for relating to the satisfaction and
discharge of this Indenture have been complied with, then this Indenture shall
cease to be of further effect (except as to (i) rights of registration of
transfer and exchange of Notes, (ii) substitution of mutilated, defaced,
destroyed, lost or stolen Notes, (iii) rights of Noteholders to receive payments
of principal thereof, and any premium and interest thereon, upon the original
stated due dates therefor or upon the applicable redemption date (but not upon
acceleration of maturity) from the moneys and U.S. Government Obligations held
by the Trustee pursuant to Section 5.02 hereof, (iv) the rights and immunities
of the Trustee hereunder, (v) the rights of the Holders of Notes as
beneficiaries hereof with respect to the property so deposited with the Trustee
payable to all or any of them, (vi) the obligations of the Company under
Sections 6.02 and 6.03 hereof, (vii) the obligations and rights of the Trustee
and the Company under Section 5.04 hereof, and (viii) the duties of the Trustee
with respect to any of the foregoing), and the Company shall be deemed to have
paid and discharged the entire indebtedness represented by, and its obligations
under, the Notes, and the Trustee, on demand of the Company and at the cost and
expense of the Company, shall execute proper instruments acknowledging such
satisfaction of and discharging this Indenture and the Trustee shall at the
request of the Company return to the Company all Senior Note First Mortgage
Bonds and all other property and money held by it under this Indenture and
determined by it from time to time in accordance with the certification pursuant
to this Section 5.01(a)(3) to be in excess of the amount required to be held
under this Section.

     If the Notes are deemed to be paid and discharged pursuant to Section
5.01(a)(3) hereof, within 15 days after those Notes are so deemed to be paid and
discharged, the Trustee shall cause a written notice to be given to each Holder
in the manner provided by Section 15.10 hereof. The notice shall:

                    (i)    state that the Notes are deemed to be paid and
     discharged;

                    (ii)   set forth a description of any U.S. Government
     Obligations and cash held by the Trustee as described above;

                    (iii)  if any Notes will be called for redemption, specify
     the date or dates on which those Notes are to be called for redemption.

     Notwithstanding the satisfaction and discharge of this Indenture, the
obligations of the Company to the Trustee under Section 9.06 hereof shall
survive.

     If the Notes are deemed paid and discharged pursuant to this Section 5.01,
the obligation of the Company to make payment with respect to the principal of
and premium, if any, and interest on the Senior Note First Mortgage Bonds shall
be satisfied and discharged and the Senior Note First Mortgage Bonds shall cease
to secure the Notes in any manner.

            (b)     If the Company shall have paid or caused to be paid the
principal of and premium, if any, and interest on any Note, as and when the same
shall have become due and payable or the Company shall have delivered to the
Trustee for cancellation any outstanding

                                       26
<Page>

Note, such Note shall cease to be entitled to any Lien, benefit or security
under this Indenture. Upon a Note of any series ceasing to be entitled to any
Lien, benefit or security under this Indenture, the obligation of the Company to
make payment with respect to principal of and premium, if any, and interest on a
principal amount of the Related Series of Senior Note First Mortgage Bonds equal
to the principal amount of such Note shall be satisfied and discharged and such
portion of the principal amount of such Senior Note First Mortgage Bonds shall
cease to secure the Notes in any manner.

     Section 5.02   DEPOSITED MONEYS TO BE HELD IN TRUST BY TRUSTEE. Subject to
Section 5.04, all moneys and U.S. Government Obligations deposited with the
Trustee pursuant to Section 5.01 hereof, shall be held in trust and applied by
it to the payment, either directly or through any paying agent (including the
Company if acting as its own paying agent), to the Holders of the particular
Notes for the payment or redemption of which such moneys and U.S. Government
Obligations have been deposited with the Trustee of all sums due and to become
due thereon for principal and premium, if any, and interest.

     Section 5.03   PAYING AGENT TO REPAY MONEYS HELD. Upon the satisfaction and
discharge of this Indenture all moneys then held by any paying agent for the
Notes (other than the Trustee) shall, upon written demand by the Company, be
repaid to the Company or paid to the Trustee, and thereupon such paying agent
shall be released from all further obligations with respect to such moneys.

     Section 5.04   RETURN OF UNCLAIMED MONEYS. Any moneys deposited with or
paid to the Trustee for payment of the principal of or any premium or interest
on any Notes and not applied but remaining unclaimed by the Holders of such
Notes for two years after the date upon which the principal of or any premium or
interest on such Notes, as the case may be, shall have become due and payable,
shall be repaid to the Company, subject to applicable abandoned property laws,
by the Trustee on written demand by the Company; and any Holder of any of such
Notes shall thereafter look only to the Company for any payment which such
Holder may be entitled to collect.

                                   ARTICLE VI

                       PARTICULAR COVENANTS OF THE COMPANY

     Section 6.01   PAYMENT OF PRINCIPAL AND INTEREST. The Company covenants and
agrees for the benefit of the Holders of the Notes of any series that it will
duly and punctually pay or cause to be paid the principal of and any premium and
interest, if any, on, such Notes at the places, at the respective times and in
the manner provided in such Notes or in this Indenture.

     Section 6.02   OFFICES FOR PAYMENTS, ETC. So long as the Notes of any
series are outstanding hereunder, the Company will maintain in the Borough of
Manhattan, The City of New York, State of New York or St. Louis, Missouri an
office or agency where the Notes of such series may be presented for payment,
for exchange as in this Indenture provided and for registration of transfer as
in this Indenture provided.

                                       27
<Page>

     The Company will maintain in the Borough of Manhattan, The City of New
York, State of New York or St. Louis, Missouri an office or agency where notices
and demands to or upon the Company in respect of the Notes of any series or this
Indenture may be served.

     The Company will give to the Trustee prompt written notice of the location
of each such office or agency and of any change of location thereof. In case the
Company shall fail to maintain any office or agency required by this Section to
be located in the Borough of Manhattan, The City of New York, State of New York
or St. Louis, Missouri or shall fail to give such notice of the location or of
any change in the location of any of the above offices or agencies,
presentations and demands may be made and notices may be served at the Corporate
Trust Office of the Trustee, and, in such event, the Trustee shall act as the
Company's agent to receive all such presentations, surrenders, notices and
demands.

     The Company may from time to time designate one or more additional offices
or agencies where the Notes of any series may be presented for payment, for
exchange as in this Indenture provided and for registration of transfer as in
this Indenture provided, and the Company may from time to time rescind any such
designation; PROVIDED, HOWEVER, that no such designation or rescission shall in
any manner relieve the Company of its obligation to maintain any office or
agency provided for in this Section. The Company will give to the Trustee prompt
written notice of any such designation or rescission thereof and of any change
in the location of any such other office or agency.

     Section 6.03   APPOINTMENT TO FILL A VACANCY IN OFFICE OF TRUSTEE. The
Company, whenever necessary to avoid or fill a vacancy in the office of Trustee,
will appoint, in the manner provided in Section 9.11, a Trustee, so that there
shall at all times be a Trustee hereunder.

     Section 6.04   PROVISION AS TO PAYING AGENT. The Trustee shall be the
paying agent for the Notes and, at the option of the Company, the Company may
appoint additional paying agents (including without limitation itself unless an
event of default has occurred and is continuing). Whenever the Company shall
appoint a paying agent other than the Trustee with respect to the Notes, it will
cause such paying agent to execute and deliver to the Trustee an instrument in
which such agent shall agree with the Trustee, subject to the provisions of this
Section:

                    (1)    that such paying agent will hold all sums received by
     it as such agent for the payment of the principal of or any premium or
     interest on the Notes (whether such sums have been paid to it by the
     Company or by any other obligor on the Notes) in trust for the benefit of
     the Holders of the Notes, or of the Trustee until such sums shall be paid
     to such Holders or otherwise disposed of as herein provided;

                    (2)    that such paying agent will give the Trustee notice
     of any failure by the Company (or by any other obligor on Notes) to make
     any payment of the principal of, premium, if any, or interest on the Notes
     when the same shall be due and payable; and

                    (3)    that such paying agent will at any time during the
     continuance of any such failure, upon the written request of the Trustee,
     forthwith pay to the Trustee all sums so held in trust by such paying
     agent.

                                       28
<Page>

     The Company will, on or prior to each due date of the principal of and any
premium or interest on the Notes, deposit with the paying agent a sum sufficient
to pay such principal and any premium or interest so becoming due, such sum to
be held in trust for the benefit of the Holders of the Notes entitled to such
principal of and any premium or interest, and (unless such paying agent is the
Trustee) the Company will promptly notify the Trustee of any failure to take
such action.

     If the Company shall act as its own paying agent with respect to the Notes,
it will, on or before each due date of the principal of (and premium, if any) or
interest, if any, on the Notes, set aside, segregate and hold in trust for the
benefit of the Holders of the Notes, a sum sufficient to pay such principal (and
premium, if any) or interest, if any, so becoming due until such sums shall be
paid to such Holders or otherwise disposed of as herein provided. The Company
will promptly notify the Trustee of any failure to take such action.

     The Company may at any time pay or cause to be paid to the Trustee all sums
held in trust by it or any paying agent hereunder, as required by this Section,
such sums to be held by the Trustee upon the trusts herein contained, and, upon
such payment by any paying agent to the Trustee, such paying agent shall be
released from all further liability with respect to such money.

     Anything in this Section to the contrary notwithstanding, the agreement to
hold sums in trust as provided in this Section is subject to the provisions of
Sections 5.03 and 5.04.

     Section 6.05   OPINIONS OF COUNSEL. The Company will cause this Indenture,
any indentures supplemental to this Indenture, and any financing or continuation
statements to be promptly recorded and filed and rerecorded and refiled in such
a manner and in such places, as may be required by law in order fully to
preserve, protect and perfect the security of the Noteholders and all rights of
the Trustee, and shall deliver to the Trustee:

            (a)     promptly after the execution and delivery of this Indenture
and of any indenture supplemental to this Indenture but prior to the Release
Date, an Opinion of Counsel either stating that, in the opinion of such counsel,
this Indenture or such supplemental indenture and any financing or continuation
statements have been properly recorded and filed so as to make effective and to
perfect the interest of the Trustee intended to be created by this Indenture for
the benefit of the Holders from time to time of the Notes in the Senior Note
First Mortgage Bonds, and reciting the details of such action, or stating that,
in the opinion of such counsel, no such action is necessary to perfect or make
such interest effective and stating what, if any, action of the foregoing
character may reasonably be expected to become necessary prior to the next
succeeding December 1 to maintain, perfect and make such interest effective; and

            (b)     on or before December 1 of each year, commencing December 1,
2002, and prior to the Release Date, an Opinion of Counsel either stating that
in the opinion of such counsel such action has been taken, since the date of the
most recent Opinion of Counsel furnished pursuant to this Section 6.05(b) or the
first Opinion of Counsel furnished pursuant to Section 6.05(a) hereof, with
respect to the recording, filing, rerecording, or refiling of this Indenture,
each supplemental indenture and any financing or continuation statements, as is
necessary to maintain and perfect the interest of the Trustee intended to be
created by this Indenture for the benefit of the Holders from time to time of
the Notes in the Senior Note First

                                       29
<Page>

Mortgage Bonds, and reciting the details of such action, or stating that in the
opinion of such counsel no such action is necessary to maintain and perfect such
interest and stating what, if any, action of the foregoing character may
reasonably be expected to become necessary prior to the next succeeding December
1 to maintain, perfect and make such security interest effective.

     Section 6.06   CERTIFICATES AND NOTICE TO TRUSTEE. The Company shall, on or
before December 1 of each year, commencing December 1, 2002, deliver to the
Trustee a certificate from its principal executive officer, principal financial
officer or principal accounting officer covering the preceding calendar year and
stating whether or not, to the knowledge of such Person, the Company has
complied with all conditions and covenants under this Indenture, and, if not,
describing in reasonable detail any failure by the Company to comply with any
such conditions or covenants. For purposes of this Section, compliance shall be
determined without regard to any period of grace or requirement of notice
provided under this Indenture. Upon the occurrence of a default (as defined in
the First Mortgage) prior to the Release Date, the Company shall promptly notify
the Trustee of such event.

     Section 6.07   RESTRICTIONS ON LIENS. (a) So long as any Notes of any
series are outstanding, the Company will not issue, assume, guarantee or permit
to exist after the Release Date any Debt secured by any Lien on any Operating
Property of the Company, whether owned at the date of this Indenture or
thereafter acquired, without in any such case effectively securing the
outstanding Notes (together with, if the Company shall so determine, any other
Debt of or guaranteed by the Company ranking equally with the Notes) equally and
ratably with such Debt (but only so long as such Debt is so secured); PROVIDED,
HOWEVER, that the foregoing restriction shall not apply to Debt secured by any
of the following:

                    (i)    Liens on any Operating Property existing at the time
     of acquisition thereof by the Company (which Liens may also extend to
     subsequent repairs, alterations and improvements to such Operating
     Property);

                    (ii)   Liens on operating property of a corporation existing
     at the time such corporation is merged into or consolidated with the
     Company, or at the time of a sale, lease, or other disposition of the
     properties of such corporation or a division thereof as an entirety or
     substantially as an entirety to the Company;

                    (iii)  Liens on Operating Property to secure all or part of
     the cost of acquiring, constructing, developing, or substantially
     repairing, altering, or improving such property, or to secure any Debt
     incurred to provide funds for any such purpose or for reimbursement of
     funds previously expended for any such purpose, provided such Liens are
     created or assumed contemporaneously with, or within eighteen (18) months
     after, such acquisition or the completion of construction, development, or
     substantial repair, alteration or improvement;

                    (iv)   Liens in favor of any State, or any department,
     agency, or instrumentality or political subdivision of any State, or for
     the benefit of holders of securities issued by any such entity (or
     providers of credit enhancement with respect to such securities), to secure
     any Debt (including, without limitation, obligations of the Company with
     respect to industrial development, pollution control or similar revenue

                                       30
<Page>

     bonds) incurred for the purpose of financing all or any part of the
     purchase price of, or the cost of constructing, developing, or
     substantially repairing, altering, or improving Operating Property of the
     Company;

                    (v)    any extension, renewal or replacement (or successive
     extensions, renewals, or replacements), in whole or in part, of any Lien
     referred to in the foregoing clauses (i) to (iv), inclusive; PROVIDED,
     HOWEVER, that the principal amount of Debt secured thereby and not
     otherwise authorized by said clauses (i) to (iv), inclusive, shall not
     exceed the principal amount of Debt, plus any premium or fee payable in
     connection with any such extension, renewal, or replacement, so secured at
     the time of such extension, renewal, or replacement.

            (b)     Notwithstanding the provisions of Section 6.07(a), the
Company may issue, assume, or guarantee Debt, or permit to exist after the
Release Date any Debt, in each case, secured by Liens that would otherwise be
subject to the restrictions of Section 6.07(a) up to an aggregate principal
amount that, together with the principal amount of all other Debt of the Company
secured by Liens (other than Liens permitted by Section 6.07(a) that would
otherwise be subject to any of the foregoing restrictions) and the Value of all
Sale and Lease-Back Transactions in existence at such time (other than any Sale
and Lease-Back Transaction that, if such Sale and Lease-Back Transaction had
been a Lien, would have been permitted by Section 6.07(a), other than Sale and
Lease-Back Transactions permitted by Section 6.08 hereof because the commitment
by or on behalf of the purchaser was obtained no later than eighteen (18) months
after the later of events described in clause (i) or (ii) of Section 6.08
hereof, and other than Sale and Lease-Back Transactions as to which application
of amounts have been made in accordance with clause (z) of Section 6.08 hereof),
does not at the time exceed fifteen percent (15%) of Capitalization.

            (c)     If the Company shall issue, assume, or guarantee any Debt
secured by any Lien and if Section 6.07(a) requires that the outstanding Notes
be secured equally and ratably with such Debt, the Company will promptly
execute, at its expense, any instruments necessary to secure the outstanding
Notes equally and ratably with such Debt and deliver the same to the Trustee
along with:

                    (i)    An Officers' Certificate stating that the covenant of
     the Company contained in Section 6.07(a) has been complied with; and

                    (ii)   An Opinion of Counsel to the effect that the Company
     has complied with the covenant contained in Section 6.07(a), and that any
     instruments executed by the Company in the performance of such covenant
     comply with the requirements of such covenant.

     In the event that the Company shall hereafter secure outstanding Notes
equally and ratably with any other obligation or indebtedness pursuant to the
provisions of this Section 6.07, the Company will enter into an indenture or
agreement supplemental hereto and take such other action to enable the Trustee
to enforce effectively the rights of the Holders of outstanding Notes so
secured, equally and ratably with such other obligation or indebtedness.

                                       31
<Page>

     Section 6.08   RESTRICTIONS ON SALE AND LEASE-BACK TRANSACTIONS. So long as
any Notes of any series are outstanding, the Company will not enter into or
permit to exist after the Release Date any Sale and Lease-Back Transaction with
respect to any Operating Property (except for transactions involving leases for
a term, including renewals, of not more than 48 months) if the commitment by or
on behalf of the purchaser is obtained more than eighteen (18) months after the
later of (i) the completion of the acquisition, construction, or development of
such Operating Property and (ii) the placing in operation of such Operating
Property or of such Operating Property as constructed, developed, or
substantially repaired, altered, or improved, unless (x) the Company would be
entitled pursuant to Section 6.07(a) to issue, assume, guarantee or permit to
exist Debt secured by a Lien on such Operating Property without equally and
ratably securing the Notes, (y) the Company would be entitled pursuant to
Section 6.07(b), after giving effect to such Sale and Lease-Back Transaction, to
incur $1.00 of additional Debt secured by Liens (other than Liens permitted by
Section 6.07(a)) or (z) the Company shall apply or cause to be applied, in the
case of a sale or transfer for cash, an amount equal to the net proceeds thereof
(but not in excess of the net book value of such Operating Property at the date
of such sale or transfer) and, in the case of a sale or transfer otherwise than
for cash, an amount equal to the fair value (as determined by the Board of
Directors) of the Operating Property so leased, to the retirement, within one
hundred eighty (180) days after the effective date of such Sale and Lease-Back
Transaction, of Notes (in accordance with their terms) or other Debt of the
Company ranking senior to, or equally with, the Notes; PROVIDED, HOWEVER, that
the amount to be applied to such retirement of Debt shall be reduced by an
amount equal to the principal amount, plus any premium or fee paid in connection
with any redemption in accordance with the terms of Debt voluntarily retired by
the Company within such one hundred eighty (180) day period, excluding
retirement pursuant to mandatory sinking fund or prepayment provisions and
payments at stated maturity.

     Section 6.09   CORPORATE EXISTENCE. Subject to the rights of the Company
under Article XII, the Company shall do or cause to be done all things necessary
to preserve and keep in full force and effect its corporate existence and the
rights (charter and statutory) and franchises of the Company; PROVIDED, HOWEVER,
that the Company shall not be required to preserve any such right or franchise
if, in the judgment of the Company, the preservation thereof is no longer
desirable in the conduct of the business of the Company.

                                   ARTICLE VII

                         NOTEHOLDER LISTS AND REPORTS BY
                           THE COMPANY AND THE TRUSTEE

     Section 7.01   COMPANY TO FURNISH NOTEHOLDER LISTS. The Company and any
other obligor on the Notes shall furnish or cause to be furnished to the Trustee
a list in such form as the Trustee may reasonably require of the names and
addresses of the Holders of the Notes:

            (a)     semi-annually and not more than 15 days after each Regular
Record Date for each Interest Payment Date that is not a Maturity date, as of
such Regular Record Date, and such list need not include information received
after such date; and

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            (b)     at such other times as the Trustee may request in writing,
within 30 days after receipt by the Company of any such request, as of a date
not more than 15 days prior to the time such information is furnished, and such
list need not include information received after such date;

PROVIDED that if and so long as the Trustee shall be the registrar for the
Notes, such list shall not be required to be furnished.

     Section 7.02   PRESERVATION AND DISCLOSURE OF NOTEHOLDER LISTS. (a) The
Trustee shall preserve, in as current a form as is reasonably practicable, all
information as to the names and addresses of the Holders of the Notes (i)
contained in the most recent lists furnished to it as provided in Section 7.01,
(ii) received by it in the capacity of registrar for the Notes, if so acting,
and (iii) filed with it within the two preceding years pursuant to Section
7.04(d)(2). The Trustee may destroy any list furnished to it as provided in
Section 7.01 upon receipt of a new list so furnished.

            (b)     In case three or more Holders of Notes (hereinafter referred
to as "applicants") apply in writing to the Trustee and furnish to the Trustee
reasonable proof that each such applicant has owned a Note for a period of at
least six months preceding the date of such application, and such application
states that the applicants desire to communicate with other Holders of Notes
with respect to their rights under this Indenture or under the Notes and such
application is accompanied by a copy of the form of proxy or other communication
which such applicants propose to transmit, then the Trustee shall, within five
Business Days after the receipt of such application, at its election, either

                    (i)    afford to such applicants access to the information
     preserved at the time by the Trustee in accordance with the provisions of
     subsection (a) of this Section; or

                    (ii)   inform such applicants as to the approximate number
     of Holders whose names and addresses appear in the information preserved at
     the time by the Trustee, in accordance with the provisions of such
     subsection (a) and as to the approximate cost of mailing to such Holders
     the form of proxy or other communication, if any, specified in such
     application.

     If the Trustee shall elect not to afford to such applicants access to such
information, the Trustee shall, upon the written request of such applicants,
mail to each Holder of Notes, whose name and address appears in the information
preserved at the time by the Trustee in accordance with the provisions of such
subsection (a) a copy of the form of proxy or other communication which is
specified in such request, with reasonable promptness after a tender to the
Trustee of the material to be mailed and of payment, or provision for the
payment, of the reasonable expenses of mailing, unless within five days after
such tender the Trustee shall mail to such applicants and file with the
Commission, together with a copy of the material to be mailed, a written
statement to the effect that, in the opinion of the Trustee, such mailing would
be contrary to the best interests of the Holders or would be in violation of
applicable law. Such written statement shall specify the basis of such opinion.
If the Commission, after opportunity for a hearing upon the objections specified
in the written statement so filed, shall enter an order refusing to sustain any
of such objections or if, after the entry of an order sustaining one or more of
such objections, the

                                       33
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Commission shall find, after notice and opportunity for hearing, that all the
objections so sustained have been met, and shall enter an order so declaring,
the Trustee shall mail copies of such material to all such Holders with
reasonable promptness after the entry of such order and the renewal of such
tender; otherwise the Trustee shall be relieved of any obligation or duty to
such applicants respecting their application.

            (c)     Each and every Holder of a Note, by receiving and holding
the same, agrees with the Company and the Trustee that neither the Company nor
the Trustee nor any agent of the Company or the Trustee shall be held
accountable by reason of the disclosure of any such information as to the names
and addresses of the Holders of Notes in accordance with the provisions of
subsection (b) of this Section, regardless of the source from which such
information was derived, and that the Trustee shall not be held accountable by
reason of mailing any material pursuant to a request made under such subsection
(b).

     Section 7.03   REPORTS BY THE COMPANY. The Company shall:

            (a)     file with the Trustee, within 15 days after the Company is
required to file the same with the Commission, copies of the annual reports and
of the information, documents and other reports (or copies of such portions of
any of the foregoing as the Commission may from time to time by rules and
regulations prescribe) which the Company may be required to file with the
Commission pursuant to Section 13 or Section 15(d) of the Securities Exchange
Act of 1934; or, if the Company is not required to file information, documents
or reports pursuant to either of said Sections, then it will file with the
Trustee and the Commission, in accordance with rules and regulations prescribed
from time to time by the Commission, such of the supplementary and periodic
information, documents and reports which may be required pursuant to Section 13
of the Securities Exchange Act of 1934 in respect of a security listed and
registered on a national securities exchange as may be prescribed from time to
time in such rules and regulations;

            (b)     file with the Trustee and the Commission, in accordance with
rules and regulations prescribed from time to time by the Commission, such
additional information, documents and reports with respect to compliance by the
Company with the conditions and covenants of this Indenture as may be required
from time to time by such rules and regulations. Filing of such information,
documents and reports with the Trustee is for informational purposes only and
the Trustee's receipt of such shall not constitute constructive notice of any
information contained therein or determinable from information contained
therein, including the Company's compliance with any of its covenants hereunder
(as to which the Trustee is entitled to rely exclusively on Officers'
Certificates); and

            (c)     transmit by mail to all Holders of Notes, within 30 days
after the filing thereof with the Trustee in the manner and to the extent
provided in Section 7.04(d), such summaries of any information, documents and
reports required to be filed by the Company pursuant to paragraphs (a) and (b)
of this Section as may be required by rules and regulations prescribed from time
to time by the Commission.

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     Section 7.04   REPORTS BY THE TRUSTEE. (a) Annually, not later than August
15 of each year, the Trustee shall transmit by mail a brief report dated as of
such date that complies with Section 313(a) of the TIA (to the extent required
by such Section).

            (b)     The Trustee shall from time to time transmit by mail brief
reports that comply, both in content and date of delivery, with Section 313(b)
of the TIA (to the extent required by such Section).

            (c)     A copy of each such report filed pursuant to this section
shall, at the time of such transmission to such Holders, be filed by the Trustee
with each stock exchange upon which any Notes are listed and also with the
Commission. The Company will notify the Trustee promptly in writing upon the
listing of such Notes on any stock exchange or any delisting thereof.

            (d)     Reports pursuant to this Section shall be transmitted:

                    (1)    by mail to all Holders of Notes, as their names and
     addresses appear in the register for the Notes;

                    (2)    by mail to such Holders of Notes as have, within the
     two years preceding such transmission, filed their names and addresses with
     the Trustee for such purpose;

                    (3)    by mail, except in the case of reports pursuant to
     Section 7.04(b) and (c) hereof, to all Holders of Notes whose names and
     addresses have been furnished to or received by the Trustee pursuant to
     Section 7.01 and 7.02(a)(ii) hereof; and

                    (4)    at the time such report is transmitted to the Holders
     of the Notes, to each exchange on which Notes are listed and also with the
     Commission.

                                  ARTICLE VIII

                     REMEDIES OF THE TRUSTEE AND NOTEHOLDERS
                              ON EVENTS OF DEFAULT

     Section 8.01   EVENTS OF DEFAULT. (a) If one or more of the following
Events of Default shall have occurred and be continuing:

                    (1)    default in the payment of any installment of interest
     upon any of the Notes as and when the same shall become due and payable,
     and continuance of such default for a period of sixty (60) days;

                    (2)    default in the payment of the principal of or any
     premium on any of the Notes as and when the same shall become due and
     payable;

                    (3)    failure on the part of the Company duly to observe or
     perform any other of the covenants or agreements on the part of the Company
     contained in this Indenture for a period of sixty (60) days after the date
     on which written notice specifying

                                       35
<Page>

     such failure, stating that such notice is a "Notice of Default" hereunder
     and demanding that the Company remedy the same, shall have been given to
     the Company by the Trustee by registered mail, or to the Company and the
     Trustee by the Holders of not less than 25% in aggregate principal amount
     of the Notes at the time outstanding;

                    (4)    prior to the Release Date, a default (as defined in
     the First Mortgage) has occurred and is continuing; PROVIDED, HOWEVER, that
     anything in this Indenture to the contrary notwithstanding, the waiver or
     cure of such default under the First Mortgage and the rescission and
     annulment of the consequences thereof under the First Mortgage shall
     constitute a waiver of the corresponding Event of Default hereunder and a
     rescission and annulment of the consequences thereof hereunder.

                    (5)    a court having jurisdiction in the premises shall
     enter a decree or order for relief in respect of the Company in an
     involuntary case under any applicable bankruptcy, insolvency or other
     similar law now or hereafter in effect, adjudging the Company a bankrupt or
     insolvent, or approving as properly filed a petition seeking
     reorganization, arrangement, adjustment or composition of or in respect of
     the Company under any applicable law, or appointing a receiver, liquidator,
     assignee, custodian, trustee or sequestrator (or similar official) of the
     Company or for any substantial part of the property of the Company, or
     ordering the winding up or liquidation of the affairs of the Company, and
     such decree or order shall remain unstayed and in effect for a period of
     sixty (60) consecutive days; or

                    (6)    the Company shall commence a voluntary case or
     proceeding under any applicable bankruptcy, insolvency, reorganization or
     other similar law now or hereafter in effect or any other case or
     proceeding to be adjudicated a bankrupt or insolvent, or consent to the
     entry of a decree or order for relief in an involuntary case under any such
     law, or to the commencement of any bankruptcy or insolvency case or
     proceeding against it, or the filing by it of a petition or answer or
     consent seeking reorganization or relief under any applicable law, or
     consent to the filing of such petition or to the appointment or taking
     possession by a receiver, liquidator, assignee, custodian, trustee or
     sequestrator (or similar official) of the Company or for any substantial
     part of the property of the Company, or make any general assignment for the
     benefit of creditors, or the notice by it in writing of its inability to
     pay its debts generally as they become due, or the taking of any corporate
     action by the Company in furtherance of any such action;

then, unless the principal of and interest on all of the Notes shall have
already become due and payable, either the Trustee or the Holders of not less
than 33% in aggregate principal amount of the Notes then outstanding, by notice
in writing to the Company (and to the Trustee if given by such Holders), may
declare the principal of and interest on all the Notes to be due and payable
immediately and upon any such declaration the same shall become immediately due
and payable, anything in this Indenture or in the Notes contained to the
contrary notwithstanding and, upon the Notes being declared to be due and
payable, the Trustee shall immediately file with the Mortgage Trustee a written
demand for redemption of all Senior Note First Mortgage Bonds to the extent
provided in the applicable provisions of the supplemental indentures to the
First Mortgage.

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<Page>

     The foregoing paragraph, however, is subject to the condition that if, at
any time after the principal of and interest on the Notes shall have been so
declared due and payable, and before any judgment or decree for the payment of
the moneys due shall have been obtained or entered as hereinafter provided, and
prior to the acceleration of all of the First Mortgage Bonds issued and
outstanding under the First Mortgage, the Company shall pay or shall deposit
with the Trustee a sum sufficient to pay all matured installments of interest
upon all of the Notes and the principal of and any premium on any and all Notes
which shall have become due otherwise than by acceleration (with interest on
overdue installments of interest, to the extent that payment of such interest is
enforceable under applicable law, and on such principal and applicable premium
at the rate borne by the Notes to the date of such payment or deposit) and all
sums paid or advanced by the Trustee hereunder, the reasonable compensation,
expenses, disbursements and advances of the Trustee, its agents and counsel, and
any other amounts due the Trustee under Section 9.06 hereof, and any and all
Events of Default, other than the non-payment of principal of and accrued
interest on any Notes which shall have become due solely by acceleration of
maturity, shall have been cured or waived (including any defaults under the
First Mortgage, as evidenced by notice thereof from the Mortgage Trustee to the
Trustee), then and in every such case such payment or deposit shall cause an
automatic waiver of the Event of Default and its consequences (including, if
given, the written demand for redemption of all Senior Note First Mortgage
Bonds) and shall cause an automatic rescission and annulment of the acceleration
of the Notes; but no such waiver or rescission and annulment shall extend to or
shall affect any subsequent default, or shall impair any right consequent
thereon.

            (b)     If the Trustee shall have proceeded to enforce any right
under this Indenture and such proceedings shall have been discontinued or
abandoned because of such rescission or annulment or for any other reason or
shall have been determined adversely to the Trustee, then and in every such case
the Company and the Trustee shall be restored respectively to their several
positions and rights hereunder, and all rights, remedies and powers of the
Company and the Trustee shall continue as though no such proceeding had been
taken.

     Section 8.02   COLLECTION OF INDEBTEDNESS BY TRUSTEE; TRUSTEE MAY PROVE
DEBT. (a) The Company covenants that if an Event of Default described in clause
(a)(1) or (a)(2) of Section 8.01 hereof shall have occurred and be continuing,
then, upon demand of the Trustee, the Company shall pay to the Trustee, for the
benefit of the Holders of the Notes, the whole amount that then shall have so
become due and payable on all such Notes for principal or interest, as the case
may be, with interest upon the overdue principal and any premium and (to the
extent that payment of such interest is enforceable under applicable law) upon
the overdue installments of interest at the rate borne by the Notes; and, in
addition thereto, such further amounts as shall be sufficient to cover the costs
and expenses of collection, including reasonable compensation to the Trustee,
its agents, attorneys and counsel, any expenses or liabilities incurred by the
Trustee hereunder other than through its negligence or bad faith. Until such
demand is made by the Trustee, the Company may pay the principal of and interest
on the Notes to the Holders, whether or not the Notes be overdue.

            (b)     In case the Company shall fail forthwith to pay such amounts
upon such demand, the Trustee, in its own name and as trustee of an express
trust, shall be entitled and empowered to institute any actions or proceedings
at law or in equity for the collection of the sums so due and unpaid, including,
prior to the Release Date, to exercise any rights to that end it

                                       37
<Page>

may have as a holder of Senior Note First Mortgage Bonds, and may enforce any
such judgment or final decree against the Company or any other obligor on the
Notes and collect in the manner provided by law out of the property of the
Company or any other obligor on such Notes wherever situated, the moneys
adjudged or decreed to be payable.

            (c)     In case there shall be pending proceedings relative to the
Company or any other obligor upon the Notes under Title 11 of the United States
Code or any other applicable Federal or state bankruptcy, insolvency or other
similar law, or in case a receiver, assignee or trustee in bankruptcy or
reorganization, liquidator, sequestrator or similar official shall have been
appointed for or taken possession of the Company or its property or such other
obligor, or in case of any other comparable judicial proceedings relative to the
Company or such other obligor, or to the creditors or property of the Company or
such other obligor, the Trustee, irrespective of whether the principal of the
Notes shall then be due and payable as therein expressed or by declaration or
otherwise and irrespective of whether the Trustee shall have made any demand
pursuant to the provisions of this Section, shall be entitled and empowered, by
intervention in such proceedings or otherwise:

                    (1)    to file and prove a claim or claims for the whole
     amount of the principal and interest owing and unpaid in respect of the
     Notes, and to file such other papers or documents as may be necessary or
     advisable in order to have the claims of the Trustee (including, prior to
     the Release Date, any claims of the Trustee as holder of Senior Note First
     Mortgage Bonds and including any amounts due to the Trustee under Section
     9.06 hereof) and of the Noteholders allowed in any judicial proceedings
     relative to the Company or such other obligor, or to the creditors or
     property of the Company or such other obligor; and

                    (2)    to collect and receive any moneys or other property
     payable or deliverable on any such claims, and to distribute all amounts
     received with respect to the claims of the Noteholders and of the Trustee
     on their behalf; and any trustee, receiver, liquidator, custodian or other
     similar official is hereby authorized by each of the Noteholders to make
     payments to the Trustee, and, in the event that the Trustee shall consent
     to the making of the payments directly to the Noteholders, to pay to the
     Trustee such amounts due pursuant to Section 9.06 hereof.

            (d)     Nothing herein contained shall be deemed to authorize the
Trustee to authorize or consent to or vote for or accept or adopt on behalf of
any Holder any plan of reorganization, arrangement, adjustment or composition
affecting the Notes of any series or the rights of any Holder thereof, or to
authorize the Trustee to vote in respect of the claim of any Holder in any such
proceeding except to vote for the election of a trustee in bankruptcy or similar
person.

            (e)     All rights of action and of asserting claims under this
Indenture, or under any of the Notes may be prosecuted and enforced by the
Trustee without the possession of any of the Notes or the production thereof at
any trial or other proceedings relative thereto, and any such action or
proceedings instituted by the Trustee shall be brought in its own name as
trustee of an express trust, and any recovery of judgment, subject to the
payment of the expenses,

                                       38
<Page>

disbursements and compensation of the Trustee and its agents, attorneys and
counsel, shall be for the ratable benefit of the Holders of the Notes in respect
of which such action was taken.

            (f)     In any proceedings brought by the Trustee (and also any
proceedings involving the interpretation of any provision of this Indenture to
which the Trustee shall be a party), the Trustee shall be held to represent all
the Holders of the Notes in respect to which action was taken, and it shall not
be necessary to make any Holders of such Notes parties to any such proceedings.

     Section 8.03   APPLICATION OF PROCEEDS. Any moneys collected by the Trustee
with respect to any of the Notes pursuant to this Article shall be applied in
the following order, at the date or dates fixed by the Trustee for the
distribution of such moneys, upon presentation of the several Notes, and
stamping thereon the payment, if only partially paid, and upon surrender thereof
if fully paid.

     FIRST: To the payment of all amounts due to the Trustee pursuant to Section
9.06 hereof;

     SECOND: In case the principal of the outstanding Notes in respect of which
such moneys have been collected shall not have become due and be unpaid, to the
payment of interest on the Notes, in the order of the maturity of the
installments of such interest, with interest (to the extent allowed by law) upon
the overdue installments of interest at the rate borne by the Notes, such
payments to be made ratably to the persons entitled thereto, and then to the
payment to the Holders entitled thereto of the unpaid principal of and
applicable premium on any of the Notes which shall have become due (other than
Notes previously called for redemption for the payment of which moneys are held
pursuant to the provisions of this Indenture), whether at stated maturity or by
redemption, in the order of their due dates, beginning with the earliest due
date, and if the amount available is not sufficient to pay in full all Notes due
on any particular date, then to the payment thereof ratably, according to the
amounts of principal and applicable premium due on that date, to the Holders
entitled thereto, without any discrimination or privilege;

     THIRD: In case the principal of the outstanding Notes in respect of which
such moneys have been collected shall have become due, by declaration or
otherwise, to the payment of the whole amount then owing and unpaid upon the
Notes for principal and any premium and interest thereon, with interest on the
overdue principal and any premium and (to the extent allowed by law) upon
overdue installments of interest at the rate borne by the Notes; and in case
such moneys shall be insufficient to pay in full the whole amount so due and
unpaid upon the Notes, then to the payment of such principal and any premium and
interest without preference or priority of principal and any premium over
interest, or of interest over principal and any premium or of any installment of
interest over any other installment of interest, or of any Note over any other
Note, ratably to the aggregate of such principal and any premium and accrued and
unpaid interest; and

     FOURTH: To the payment of the remainder, if any, to the Company or its
successors or assigns, or to whomsoever may lawfully be entitled to the same, or
as a court of competent jurisdiction may determine.

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<Page>

     Section 8.04   LIMITATIONS ON SUITS BY NOTEHOLDERS. (a) No Holder of any
Note shall have any right by virtue of or by availing of any provision of this
Indenture to institute any suit, action or proceeding in equity or at law upon
or under or with respect to this Indenture or for the appointment of a receiver
or trustee, or for any other remedy hereunder, unless such Holder previously
shall have given to the Trustee written notice of an Event of Default with
respect to such Note and of the continuance thereof, as hereinabove provided,
and unless also Noteholders of a majority in aggregate principal amount of the
Notes then outstanding affected by such Event of Default shall have made written
request upon the Trustee to institute such action, suit or proceeding in its own
name as Trustee hereunder and shall have offered to the Trustee such reasonable
indemnity as it may require against the costs, expenses and liabilities to be
incurred therein or thereby, and the Trustee for 60 days after its receipt of
such notice, request and offer of indemnity, shall have neglected or refused to
institute any such action, suit or proceeding; it being understood and intended,
and being expressly covenanted by the taker and Holder of every Note with every
other taker and Holder and the Trustee, that no one or more Holders of Notes
shall have any right in any manner whatever by virtue or by availing of any
provision of this Indenture to affect, disturb or prejudice the rights of any
other Holder of Notes, or to obtain or seek to obtain priority over or
preference to any other such Holder or to enforce any right under this
Indenture, except in the manner herein provided and for the equal, ratable and
common benefit of all Holders of Notes. For the protection and enforcement of
the provisions of this Section, each and every Noteholder and the Trustee shall
be entitled to such relief as can be given either at law or in equity.

            (b)     Notwithstanding any other provision in this Indenture,
however, the rights of any Holder of any Note to receive payment of the
principal of and any premium and interest on such Note, on or after the
respective due dates expressed in such Note or on the applicable redemption
date, or to institute suit for the enforcement of any such payment on or after
such respective dates are absolute and unconditional, and shall not be impaired
or affected without the consent of such Holder.

     Section 8.05   SUITS FOR ENFORCEMENT. In case an Event of Default has
occurred, has not been waived and is continuing, hereunder the Trustee may in
its discretion proceed to protect and enforce the rights vested in it by this
Indenture, including, prior to the Release Date, its rights as holder of the
Senior Note First Mortgage Bonds, by such appropriate judicial proceedings as
the Trustee shall deem most effectual to protect and enforce any of such rights,
either by suit in equity or by action at law or by proceeding in bankruptcy or
otherwise, whether for the specific enforcement of any covenant or agreement
contained in this Indenture or in aid of the exercise of any power granted to it
under this Indenture, or to enforce any other legal or equitable right vested in
the Trustee by this Indenture or by law.

     Section 8.06   POWERS AND REMEDIES CUMULATIVE; DELAY OR OMISSION NOT WAIVER
OF DEFAULT. No right or remedy herein conferred upon or reserved to the Trustee
or to the Holders of Notes is intended to be exclusive of any other right or
remedy, and every right and remedy shall, to the extent permitted by law, be
cumulative and in addition to every other right and remedy given hereunder or
now or hereafter existing at law or in equity or otherwise. The assertion or
employment of any right or remedy hereunder, or otherwise, shall not prevent the
concurrent assertion or employment of any other appropriate right or remedy.

                                       40
<Page>

     No delay or omission of the Trustee or of any Holder of Notes to exercise
any right or power accruing upon any Event of Default occurring and continuing
as aforesaid shall impair any such right or power or shall be construed to be a
waiver of any such Event of Default or an acquiescence therein; and, subject to
Section 8.04, every right and power given by this Indenture or by law to the
Trustee or to the Holders of Notes may be exercised from time to time, and as
often as shall be deemed expedient, by the Trustee or by the Holders of Notes,
as the case may be.

     Section 8.07   DIRECTION OF PROCEEDINGS AND WAIVER OF DEFAULTS BY MAJORITY
OF NOTEHOLDERS. (a) The Holders of a majority in aggregate principal amount of
the Notes at the time outstanding shall have the right to direct the time,
method, and place of conducting any proceeding for any remedy available to the
Trustee, or exercising any trust or power conferred on the Trustee; PROVIDED,
that such direction shall not be otherwise than in accordance with law and the
provisions of this Indenture; and PROVIDED FURTHER that (subject to Section 9.01
hereof) the Trustee shall have the right to decline to follow any such direction
if the Trustee being advised by counsel determines that the action or proceeding
so directed may not lawfully be taken or if the Trustee in good faith by its
board of directors or trustees, executive committee, or a trust committee of
directors or trustees or responsible officers shall determine that the action or
proceeding so directed would involve the Trustee in personal liability. Nothing
in this Indenture shall impair the right of the Trustee in its discretion to
take any action deemed proper by the Trustee and which is not inconsistent with
such direction or directions by Noteholders.

            (b)     The Holders of a majority in aggregate principal amount of
the Notes at the time outstanding may on behalf of all of the Holders of the
Notes waive any past default or Event of Default hereunder and its consequences
except a default in the payment of principal of or any premium or interest on
the Notes. Upon any such waiver the Company, the Trustee and the Holders of the
Notes shall be restored to their former positions and rights hereunder,
respectively, but no such waiver shall extend to any subsequent or other default
or Event of Default or impair any right consequent thereon. Upon any such
waiver, such default shall cease to exist and be deemed to have been cured and
not to be continuing, and any Event of Default arising therefrom shall be deemed
to have been cured and not to be continuing, for every purpose of this
Indenture; but no such waiver shall extend to any subsequent or other default or
Event of Default or impair any right consequent thereon.

     Section 8.08   NOTICE OF DEFAULT. The Trustee shall, within 90 days after
the occurrence of a default with respect to the Notes, give to all Holders of
the Notes, in the manner provided in Section 15.10, notice of such default
actually known to the Trustee, unless such default shall have been cured or
waived before the giving of such notice, the term "default" for the purpose of
this Section 8.08 being hereby defined to be any event which is or after notice
or lapse of time or both would become an Event of Default; PROVIDED that, except
in the case of default in the payment of the principal of or any premium or
interest on any of the Notes, or in the payment of any sinking or purchase fund
installments, the Trustee shall be protected in withholding such notice if and
so long as its board of directors or trustees, executive committee, or a trust
committee of directors or trustees or responsible officers in good faith
determines that the withholding of such notice is in the interests of the
Holders of the Notes.

                                       41
<Page>

     Section 8.09   UNDERTAKING TO PAY COSTS. All parties to this Indenture
agree, and each Holder of any Note by acceptance thereof shall be deemed to have
agreed, that any court may in its discretion require, in any suit for the
enforcement of any right or remedy under this Indenture or in any suit against
the Trustee for any action taken, suffered or omitted by it as Trustee, the
filing by any party litigant in such suit of an undertaking to pay the costs of
such suit, and that such court may in its discretion assess reasonable costs,
including reasonable attorneys' fees, against any party litigant in such suit,
having due regard to the merits and good faith of the claims or defenses made by
such party litigant; but this Section 8.09 shall not apply to any suit
instituted by the Trustee, or to any suit instituted by any Noteholder, or group
of Noteholders, holding in the aggregate more than 10% in principal amount of
the Notes outstanding, or to any suit instituted by any Noteholder for the
enforcement of the payment of the principal of or any premium or interest on any
Note on or after the due date expressed in such Note or the applicable
redemption date.

     Section 8.10   RESTORATION OF RIGHTS ON ABANDONMENT OF PROCEEDINGS. In case
the Trustee or any Holder shall have proceeded to enforce any right under this
Indenture and such proceedings shall have been discontinued or abandoned for any
reason, or shall have been determined adversely to the Trustee or to such
Holder, then, and in every such case, the Company, the Trustee and the Holders
shall be restored respectively to their former positions and rights hereunder,
and all rights, remedies and powers of the Company, the Trustee and the Holders
shall continue as though no such proceedings had been taken.

     Section 8.11   DEFAULTS UNDER THE FIRST MORTGAGE. In addition to every
other right and remedy provided herein, the Trustee may exercise any right or
remedy available to the Trustee in its capacity as owner and holder of Senior
Note First Mortgage Bonds which arises as a result of a default under the First
Mortgage whether or not an Event of Default under this Indenture shall then have
occurred and be continuing.

     Section 8.12   WAIVER OF USURY, STAY OR EXTENSION LAWS. The Company
covenants (to the extent that it may lawfully do so) that it will not at any
time insist upon, or plead, or in any manner whatsoever claim or take the
benefit or advantage of, any usury, stay or extension law wherever enacted, now
or at any time hereafter in force, which may affect the covenants or the
performance of this Indenture; and the Company (to the extent that it may
lawfully do so) hereby expressly waives all benefit or advantage of any such law
and covenants that it will not hinder, delay or impede the execution of any
power herein granted to the Trustee, but will suffer and permit the execution of
every such power as though no such law had been enacted.

                                   ARTICLE IX

                             CONCERNING THE TRUSTEE

     Section 9.01   DUTIES AND RESPONSIBILITIES OF TRUSTEE. (a) The Trustee,
prior to the occurrence of an Event of Default and after the curing of all
Events of Default which may have occurred, undertakes to perform such duties and
only such duties as are specifically set forth in this Indenture. If an Event of
Default has occurred (which has not been cured or waived), the Trustee shall
exercise such of the rights and powers vested in it by this Indenture, and use
the

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same degree of care and skill in their exercise, as a prudent man would exercise
or use under the circumstances in the conduct of his own affairs.

            (b)     No provisions of this Indenture shall be construed to
relieve the Trustee from liability for its own negligent action, its own
negligent failure to act or its own willful misconduct, except that:

                    (1)    prior to the occurrence of any Event of Default and
     after the curing or waiving of all Events of Default which may have
     occurred

                           (A)  the duties and obligations of the Trustee shall
            be determined solely by the express provisions of this Indenture,
            and the Trustee shall not be liable except for the performance of
            such duties and obligations as are specifically set forth in this
            Indenture, and no implied covenants or obligations shall be read
            into this Indenture against the Trustee; and

                           (B)  in the absence of bad faith or actual knowledge
            on the part of the Trustee, the Trustee may conclusively rely, as to
            the truth of the statements and the correctness of the opinions
            expressed therein, upon any certificates or opinions furnished to
            the Trustee and conforming to the requirements of this Indenture;
            but, in the case of any such certificates or opinions which by any
            provision hereof are specifically required to be furnished to the
            Trustee, the Trustee shall be under a duty to examine the same to
            determine whether or not they conform to the requirements of this
            Indenture (but need not confirm or investigate the accuracy of
            mathematical calculations or other facts stated therein);

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

                    (3)    the Trustee shall not be liable with respect to any
     action taken or omitted to be taken by it in good faith in accordance with
     the direction, pursuant to this Indenture, of the Holders of a majority in
     principal amount of the Notes, including, but not limited to, Section 8.07
     hereof relating to the time, method and place of conducting any proceeding
     for any remedy available to the Trustee, or exercising any trust or power
     conferred upon the Trustee under this Indenture.

            (c)     No provision of this Indenture shall require the Trustee to
expend or risk its own funds or otherwise incur any financial liability in the
performance of any of its duties hereunder, or in the exercise of any of its
rights or powers, if it shall have reasonable grounds for believing that
repayment of such funds or adequate indemnity against such risk or liability is
not reasonably assured to it.

            (d)     Whether or not therein expressly so provided, every
provision of this Indenture relating to the conduct or affecting the liability
of or affording protection to the Trustee shall be subject to the provisions of
this Section.

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<Page>

     Section 9.02   RELIANCE ON DOCUMENTS, OPINIONS, ETC.  Except as otherwise
provided in Section 9.01 hereof:

            (a)     the Trustee may conclusively rely and shall be protected in
acting or refraining from acting upon any resolution, certificate, statement,
instrument, opinion, report, notice, request, consent, order, note or other
paper or document believed by it to be genuine and to have been signed or
presented by the proper party or parties;

            (b)     any request, direction, order or demand of the Company
mentioned herein shall be sufficiently evidenced by an Officers' Certificate
(unless other evidence in respect thereof is herein specifically prescribed);
and any Board Resolution may be evidenced to the Trustee by a copy thereof
certified by the Secretary or an Assistant Secretary of the Company;

            (c)     the Trustee may consult with counsel of its selection and
any advice or Opinion of Counsel shall be full and complete authorization and
protection in respect of any action taken, suffered or omitted by it hereunder
in good faith and in accordance with such advice or Opinion of Counsel;

            (d)     the Trustee shall be under no obligation to exercise any of
the rights or powers vested in it by this Indenture at the request, order or
direction of any of the Noteholders, pursuant to this Indenture, unless such
Noteholders shall have offered to the Trustee reasonable security or indemnity
against the costs, expenses and liabilities which may be incurred by such
exercise;

            (e)     the Trustee shall not be liable for any action taken,
suffered or omitted by it in good faith and believed by it to be authorized or
within the discretion or rights or powers conferred upon it by this Indenture;

            (f)     prior to the occurrence of an Event of Default hereunder and
after the curing or waiving of all Events of Default, the Trustee shall not be
bound to make any investigation into the facts or matters stated in any
resolution, certificate, statement, instrument, opinion, report, notice,
request, consent, order, approval, note or other paper or document, unless
requested in writing to do so by the Holders of at least a majority in principal
amount of the then outstanding Notes; PROVIDED that if the payment within a
reasonable time to the Trustee of the costs, expenses or liabilities likely to
be incurred by it in the making of such investigation is, in the opinion of the
Trustee, not reasonably assured to the Trustee by the security afforded to it by
this Indenture, the Trustee may require reasonable indemnity against such
expense or liability as a condition to so proceeding;

            (g)     the Trustee may execute any of the trusts or powers
hereunder or perform any duties hereunder either directly or through agents or
attorneys; PROVIDED that the Trustee shall not be liable for the conduct or acts
of any such agent or attorney that shall have been appointed in accordance
herewith with due care.

     Section 9.03   NO RESPONSIBILITY FOR RECITALS, ETC. The recitals contained
herein and in the Notes (except in the certificate of authentication) shall be
taken as the statements of the Company, and the Trustee assumes no
responsibility for the correctness of the same. The Trustee makes no
representations as to the validity or sufficiency of this Indenture or of the
Notes. The

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Trustee shall not be accountable for the use or application by the Company of
any Notes or the proceeds of any Notes authenticated and delivered by the
Trustee in conformity with this Indenture.

     Section 9.04   TRUSTEE, AUTHENTICATING AGENT, PAYING AGENT OR REGISTRAR MAY
OWN NOTES. The Trustee and any Authenticating Agent or paying agent in its
individual or other capacity, may become the owner or pledgee of Notes with the
same rights it would have if it were not Trustee, Authenticating Agent or paying
agent.

     Section 9.05   MONEYS TO BE HELD IN TRUST. Subject to Section 5.04 hereof,
all moneys received by the Trustee shall, until used or applied as herein
provided, be held in trust for the purposes for which they were received, but
need not be segregated from other funds except to the extent required by law.
The Trustee may allow and credit to the Company interest on any money received
hereunder at such rate, if any, as may be agreed upon by the Company and the
Trustee from time to time as may be permitted by law.

     Section 9.06   COMPENSATION AND EXPENSES OF TRUSTEE. The Company covenants
and agrees to pay to the Trustee from time to time, and the Trustee shall be
entitled to, such compensation as the Company and the Trustee shall from time to
time agree in writing (which shall not be limited by any law in regard to the
compensation of a trustee of an express trust), and the Company shall pay or
reimburse the Trustee upon its request for all reasonable expenses,
disbursements and advances incurred or made by the Trustee in accordance with
this Indenture (including the reasonable compensation and the reasonable
expenses and disbursements of its counsel and agents, including any
Authenticating Agents, and of all persons not regularly in its employ) except
any such expense, disbursement or advance as may arise from its negligence or
bad faith. The Company also covenants to indemnify each of the Trustee or any
predecessor and their agents for, and to hold it harmless against, any loss,
liability or expense incurred without negligence or bad faith on the part of the
Trustee and arising out of or in connection with the acceptance or
administration of this trust, including the costs and expenses of defending
itself against any claim or liability. The obligations of the Company under this
Section 9.06 to compensate the Trustee and to pay or reimburse the Trustee for
expenses, disbursements and advances shall constitute additional indebtedness
hereunder. Such additional indebtedness shall be secured by a lien prior to that
of the Notes upon all property and funds held or collected by the Trustee as
such, except funds held in trust for the benefit of the Holders of any
particular Notes. The provisions of this Section 9.06 shall survive termination
of this Indenture.

     Section 9.07   OFFICERS' CERTIFICATE AS EVIDENCE. Whenever in the
administration of this Indenture, the Trustee shall deem it necessary or
desirable that a matter be proved or established prior to the taking, suffering
or omitting of any action hereunder, such matter (unless other evidence in
respect thereof is herein specifically prescribed) may, in the absence of
negligence or bad faith on the part of the Trustee, be deemed to be conclusively
proved and established by an Officers' Certificate delivered to the Trustee, and
such Officers' Certificate, in the absence of negligence or bad faith on the
part of the Trustee, shall be full warrant to the Trustee for any action taken,
suffered or omitted by it under this Indenture in reliance thereon.

     Section 9.08   CONFLICTING INTEREST OF TRUSTEE. The Trustee shall be
subject to and shall comply with the provisions of Section 310(b) of the TIA.
Nothing in this Indenture shall be

                                       45
<Page>

deemed to prohibit the Trustee or the Company from making any application
permitted pursuant to such section.

     Section 9.09   EXISTENCE AND ELIGIBILITY OF TRUSTEE. There shall at all
times be a Trustee hereunder which Trustee shall at all times be a corporation
organized and doing business under the laws of the United States or any State
thereof or of the District of Columbia having a combined capital and surplus of
at least $50,000,000 and which is authorized under such laws to exercise
corporate trust powers and is subject to supervision or examination by Federal
or state authorities. Such corporation shall have its principal place of
business in the City of St. Louis, Missouri or the Borough of Manhattan, The
City of New York, State of New York, if there be such a corporation in such
location willing to act upon reasonable and customary terms and conditions. If
such corporation publishes reports of condition at least annually, pursuant to
law or to the requirements of the aforesaid authority, then for the purposes of
this Section 9.09, the combined capital and surplus shall be deemed to be as set
forth in its most recent report of condition so published. No obligor upon the
Notes or Person directly or indirectly controlling, controlled by, or under
common control with such obligor shall serve as Trustee. If at any time the
Trustee shall cease to be eligible in accordance with this Section 9.09, the
Trustee shall resign immediately in the manner and with the effect specified in
Section 9.10 hereof.

     Section 9.10   RESIGNATION OR REMOVAL OF TRUSTEE. (a) Pursuant to the
provisions of this Article, the Trustee may at any time resign and be discharged
of the trusts created by this Indenture by giving written notice to the Company
specifying the day upon which such resignation shall take effect, and such
resignation shall take effect immediately upon the later of the appointment of a
successor trustee and such day.

            (b)     Any Trustee may be removed at any time by an instrument or
concurrent instruments in writing filed with such Trustee and signed and
acknowledged by the Holders of a majority in principal amount of the then
outstanding Notes or by their attorneys in fact duly authorized.

            (c)     So long as no Event of Default has occurred and is
continuing, and no event has occurred and is continuing that, with the giving of
notice or the lapse of time or both, would become an Event of Default, the
Company may remove any Trustee upon written notice to the Holder of each Note
Outstanding and the Trustee and appoint a successor Trustee meeting the
requirements of Section 9.09. The Company or the successor Trustee shall give
notice to the Holders, in the manner provided in Section 15.10, of such removal
and appointment within 30 days of such removal and appointment.

            (d)     If at any time (i) the Trustee shall cease to be eligible
in accordance with Section 9.09 hereof and shall fail to resign after written
request therefor by the Company or by any Holder who has been a bona fide Holder
for at least six months, (ii) the Trustee shall fail to comply with Section 9.08
hereof after written request therefor by the Company or any such Holder, or
(iii) the Trustee shall become incapable of acting or shall be adjudged a
bankrupt or insolvent or a receiver of the Trustee or its property shall be
appointed or any public officer shall take charge or control of the Trustee or
of its property or affairs for the purpose of rehabilitation, conservation or
liquidation, then the Trustee may be removed forthwith by an instrument or
concurrent instruments in writing filed with the Trustee and either:

                                       46
<Page>

                    (1)    signed by the President or any Vice President of the
     Company and attested by the Secretary or an Assistant Secretary of the
     Company; or

                    (2)    signed and acknowledged by the Holders of a majority
     in principal amount of outstanding Notes or by their attorneys in fact duly
     authorized.

            (e)     Any resignation or removal of the Trustee shall not become
effective until acceptance of appointment by the successor Trustee as provided
in Section 9.11 hereof.

     Section 9.11   APPOINTMENT OF SUCCESSOR TRUSTEE. (a) If at any time the
Trustee shall resign or be removed, the Company, by a Board Resolution, shall
promptly appoint a successor Trustee.

            (b)     The Company shall provide written notice of its appointment
of a successor Trustee to the Holder of each Note Outstanding following any such
appointment.

            (c)     If no appointment of a successor Trustee shall be made
pursuant to Section 9.11(a) hereof within 60 days after appointment shall be
required, any Noteholder or the resigning Trustee may apply to any court of
competent jurisdiction to appoint a successor Trustee. Said court may thereupon
after such notice, if any, as such court may deem proper and prescribe, appoint
a successor Trustee.

            (d)     Any Trustee appointed under this Section 9.11 as a successor
Trustee shall be a bank or trust company eligible under Section 9.09 hereof and
qualified under Section 9.08 hereof.

     Section 9.12   ACCEPTANCE BY SUCCESSOR TRUSTEE. (a) Any successor Trustee
appointed as provided in Section 9.11 hereof shall execute, acknowledge and
deliver to the Company and to its predecessor Trustee an instrument accepting
such appointment hereunder, and thereupon the resignation or removal of the
predecessor Trustee shall become effective and such successor Trustee, without
any further act, deed or conveyance, shall become vested with all the rights,
powers, duties and obligations of its predecessor hereunder, with like effect as
if originally named as Trustee herein; but nevertheless, on the written request
of the Company or of the successor Trustee, the Trustee ceasing to act shall,
upon payment of any amounts then due it pursuant to Section 9.06 hereof, execute
and deliver an instrument transferring to such successor Trustee all the rights
and powers of the Trustee so ceasing to act, including all right, title, and
interest in the Senior Note First Mortgage Bonds. Upon request of any such
successor Trustee, the Company shall execute any and all instruments in writing
in order more fully and certainly to vest in and confirm to such successor
Trustee all such rights and powers. Any Trustee ceasing to act shall,
nevertheless, retain a lien upon all property or funds held or collected by such
Trustee to secure any amounts then due it pursuant to Section 9.06 hereof.

            (b)     No successor Trustee shall accept appointment as provided in
this Section 9.12 unless at the time of such acceptance such successor Trustee
shall be qualified under Section 9.08 hereof and eligible under Section 9.09
hereof.

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<Page>

            (c)     Upon acceptance of appointment by a successor Trustee as
provided in this Section 9.12, the successor Trustee shall mail notice of its
succession hereunder to all Holders of Notes as the names and addresses of such
Holders appear on the registry books.

     Section 9.13   SUCCESSION BY MERGER, ETC. (a) Any corporation into which
the Trustee may be merged or converted or with which it may be consolidated, or
any corporation resulting from any merger, conversion or consolidation to which
the Trustee shall be a party, or any corporation succeeding to all or
substantially all of the corporate trust business of the Trustee, shall be the
successor of the Trustee hereunder without the execution or filing of any paper
or any further act on the part of any of the parties hereto, provided such
corporation shall be otherwise qualified and eligible under this Article.

            (b)     If at the time such successor to the Trustee shall succeed
to the trusts created by this Indenture any of the Notes shall have been
authenticated but not delivered, any such successor to the Trustee may adopt the
certificate of authentication of any predecessor Trustee, and deliver such Notes
so authenticated; and in case at that time any of the Notes shall not have been
authenticated, any successor to the Trustee may authenticate such Notes either
in the name of any predecessor hereunder or in the name of the successor
Trustee; and in all such cases such certificates shall have the full force which
it is anywhere in the Notes or in this Indenture provided that the certificates
of the Trustee shall have; provided that the right to adopt the certificate of
authentication of any predecessor Trustee or authenticate Notes in the name of
any predecessor Trustee shall apply only to its successor or successors by
merger, conversion or consolidation.

     Section 9.14   LIMITATIONS ON RIGHTS OF TRUSTEE AS A CREDITOR. The Trustee
shall be subject to, and shall comply with, the provisions of Section 311 of the
TIA.

     Section 9.15   AUTHENTICATING AGENT. (a) There may be one or more
Authenticating Agents appointed by the Trustee with the written consent of the
Company, with power to act on its behalf and subject to the direction of the
Trustee in the authentication and delivery of Notes in connection with transfers
and exchanges under Sections 2.06, 2.07, 2.08, 2.13, 3.03, and 13.04 hereof, as
fully to all intents and purposes as though such Authenticating Agents had been
expressly authorized by those Sections to authenticate and deliver Notes. For
all purposes of this Indenture, the authentication and delivery of Notes by any
Authenticating Agent pursuant to this Section 9.15 shall be deemed to be the
authentication and delivery of such Notes "by the Trustee." Any such
Authenticating Agent shall be a bank or trust company or other Person of the
character and qualifications set forth in Section 9.09 hereof.

            (b)     Any corporation into which any Authenticating Agent may be
merged or converted or with which it may be consolidated, or any corporation
resulting from any merger, conversion or consolidation to which any
Authenticating Agent shall be a party, or any corporation succeeding to the
corporate trust business of any Authenticating Agent, shall be the successor of
such Authenticating Agent hereunder, if such successor corporation is otherwise
eligible under this Section 9.15, without the execution or filing of any paper
or any further act on the part of the parties hereto or such Authenticating
Agent or such successor corporation.

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<Page>

            (c)     Any Authenticating Agent may at any time resign by giving
written notice of resignation to the Trustee and to the Company. The Trustee may
at any time terminate the agency of any Authenticating Agent by giving written
notice of termination to such Authenticating Agent and to the Company. Upon
receiving such a notice of resignation or upon such a termination, or in case at
any time any Authenticating Agent shall cease to be eligible under this Section
9.15, the Trustee may, with the written consent of the Company, appoint a
successor Authenticating Agent, and upon so doing shall give written notice of
such appointment to the Company and shall mail, in the manner provided in
Section 15.10, notice of such appointment to the Holders of Notes.

            (d)     The Trustee agrees to pay to each Authenticating Agent from
time to time reasonable compensation for its services, and the Trustee shall be
entitled to be reimbursed for such payments, in accordance with Section 9.06
hereof.

            (e)     Sections 9.02, 9.03, 9.06, 9.07 and 9.09 hereof shall be
applicable to any Authenticating Agent.

                                    ARTICLE X

                           CONCERNING THE NOTEHOLDERS

     Section 10.01  ACTION BY NOTEHOLDERS. Whenever in this Indenture it is
provided that the Holders of a specified percentage in aggregate principal
amount of the Notes may take any action, the fact that at the time of taking any
such action the Holders of such specified percentage have joined therein may be
evidenced (a) by any instrument or any number of instruments of similar tenor
executed by such Noteholders in person or by agent or proxy appointed in
writing, (b) by the record of such Noteholders voting in favor thereof at any
meeting of Noteholders duly called and held in accordance with Article XI
hereof, or (c) by a combination of such instrument or instruments and any such
record of such a meeting of Noteholders.

     Section 10.02  PROOF OF EXECUTION BY NOTEHOLDERS. (a) Subject to Sections
9.01, 9.02 and 11.05 hereof, proof of the execution of any instruments by a
Noteholder or the agent or proxy for such Noteholder shall be sufficient if made
in accordance with such reasonable rules and regulations as may be prescribed by
the Trustee or in such manner as shall be satisfactory to the Trustee. The
ownership of Notes shall be proved by the register for the Notes maintained by
the Trustee.

            (b)     The record of any Noteholders' meeting shall be proven in
the manner provided in Section 11.06 hereof.

     Section 10.03  PERSONS DEEMED ABSOLUTE OWNERS. Subject to Sections 2.04(f)
and 10.01 hereof, the Company, the Trustee, any paying agent and any
Authenticating Agent shall deem the person in whose name any Note shall be
registered upon the register for the Notes to be, and shall treat such person
as, the absolute owner of such Note (whether or not such Note shall be overdue)
for the purpose of receiving payment of or on account of the principal and
premium, if any, and interest on such Note, and for all other purposes; and
neither the Company nor the Trustee nor any paying agent nor any Authenticating
Agent shall be affected by any notice to the

                                       49
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contrary. All such payments shall be valid and effectual to satisfy and
discharge the liability upon any such Note to the extent of the sum or sums so
paid.

     Section 10.04  COMPANY-OWNED NOTES DISREGARDED. In determining whether the
Holders of the requisite aggregate principal amount of outstanding Notes have
concurred in any direction, consent or waiver under this Indenture, Notes that
are owned by the Company or any other obligor on the Notes or by any person
directly or indirectly controlling or controlled by or under direct or indirect
common control with the Company or any other obligor on the Notes shall be
disregarded and deemed not to be outstanding for the purpose of any such
determination; PROVIDED that, for the purposes of determining whether the
Trustee shall be protected in relying on any such direction, consent or waiver,
only Notes which the Trustee knows are so owned shall be so disregarded. Notes
so owned which have been pledged in good faith to third parties may be regarded
as outstanding for the purposes of this Section 10.04 if the pledgee shall
establish the pledgee's right to take action with respect to such Notes and that
the pledgee is not a person directly or indirectly controlling or controlled by
or under direct or indirect common control with the Company or any such other
obligor. In the case of a dispute as to such right, the Trustee may rely upon an
Opinion of Counsel and an Officers' Certificate to establish the foregoing.

     Section 10.05  REVOCATION OF CONSENTS; FUTURE HOLDERS BOUND. Except as may
be otherwise required in the case of a Global Note by the applicable rules and
regulations of the Depositary, at any time prior to the taking of any action by
the Holders of the percentage in aggregate principal amount of the Notes
specified in this Indenture in connection with such action, any Holder of a
Note, which has been included in the Notes the Holders of which have consented
to such action may, by filing written notice with the Trustee at the corporate
trust office of the Trustee and upon proof of ownership as provided in Section
10.02(a) hereof, revoke such action so far as it concerns such Note. Except as
aforesaid, any such action taken by the Holder of any Note shall be conclusive
and binding upon such Holder and upon all future Holders and owners of such Note
and of any Notes issued in exchange, substitution or upon registration of
transfer therefor, irrespective of whether or not any notation thereof is made
upon such Note or such other Notes.

     Section 10.06  RECORD DATE FOR NOTEHOLDER ACTS. If the Company shall
solicit from the Noteholders any request, demand, authorization, direction,
notice, consent, waiver or other act, the Company may, at its option, by Board
Resolution, fix in advance a record date for the determination of Noteholders
entitled to give such request, demand, authorization, direction, notice,
consent, waiver or other act, but the Company shall have no obligation to do so.
If such a record date is fixed, such request, demand, authorization, direction,
notice, consent, waiver or other act may be given before or after the record
date, but only the Noteholders of record at the close of business on the record
date shall be deemed to be Noteholders for the purpose of determining whether
Holders of the requisite aggregate principal amount of outstanding Notes have
authorized or agreed or consented to such request, demand, authorization,
direction, notice, consent, waiver or other act, and for that purpose the
outstanding Notes shall be computed as of the record date; PROVIDED that no such
request, demand, authorization, direction, notice, consent, waiver or other act
by the Noteholders on the record date shall be deemed effective unless it shall
become effective pursuant to this Indenture not later than six months after the
record date. Any such record date shall be at least 30 days prior to the date of
the solicitation to the Noteholders by the Company.

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<Page>

                                   ARTICLE XI

                              NOTEHOLDERS' MEETING

     Section 11.01  PURPOSES OF MEETINGS. A meeting of Noteholders may be called
at any time and from time to time pursuant to this Article XI for any of the
following purposes:

            (a)     to give any notice to the Company or to the Trustee, or to
give any directions to the Trustee, or to consent to the waiving of any Event of
Default hereunder and its consequences, or to take any other action authorized
to be taken by Noteholders pursuant to Article XIII;

            (b)     to remove the Trustee pursuant to Article IX;

            (c)     to consent to the execution of an indenture or indentures
supplemental hereto pursuant to Section 13.02 hereof; or

            (d)     to take any other action authorized to be taken by or on
behalf of the Holders of any specified aggregate principal amount of the Notes,
as the case may be, under any other provision of this Indenture or under
applicable law.

     Section 11.02  CALL OF MEETINGS BY TRUSTEE. The Trustee may at any time
call a meeting of Holders of Notes to take any action specified in Section 11.01
hereof, to be held at such time and at such place as the Trustee shall
determine. Notice of every such meeting of Noteholders, setting forth the time
and the place of such meeting and in general terms the action proposed to be
taken at such meeting, shall be given to Holders of the Notes that may be
affected by the action proposed to be taken at such meeting in the manner
provided in Section 15.10 hereof. Such notice shall be given not less than 20
nor more than 90 days prior to the date fixed for such meeting.

     Section 11.03  CALL OF MEETINGS BY COMPANY OR NOTEHOLDERS. If at any time
the Company, pursuant to a Board Resolution, or the Holders of at least 10% in
aggregate principal amount of the Notes then outstanding, shall have requested
the Trustee to call a meeting of Noteholders, by written request setting forth
in reasonable detail the action proposed to be taken at the meeting, and the
Trustee shall not have mailed the notice of such meeting within 20 days after
receipt of such request, then the Company or such Noteholders may determine the
time and the place for such meeting and may call such meeting to take any action
authorized in Section 11.01 hereof, by giving notice thereof as provided in
Section 11.02 hereof.

     Section 11.04  QUALIFICATIONS FOR VOTING. To be entitled to vote at any
meetings of Noteholders a Person shall (a) be a Holder of one or more Notes
affected by the action proposed to be taken or (b) be a Person appointed by an
instrument in writing as proxy by a Holder of one or more such Notes. The only
Persons who shall be entitled to be present or to speak at any meeting of
Noteholders shall be the Persons entitled to vote at such meeting and their
counsel and any representatives (including employees) of the Trustee and its
counsel and any representatives (including employees) of the Company and its
counsel.

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     Section 11.05  REGULATIONS. (a) Notwithstanding any other provisions of
this Indenture, the Trustee may make such reasonable regulations as it may deem
advisable for any meeting of Noteholders in regard to proof of the holding of
Notes and of the appointment of proxies, and in regard to the appointment and
duties of inspectors of votes, the submission and examination of proxies,
certificates and other evidence of the right to vote, and such other matters
concerning the conduct of the meeting as it shall think fit.

            (b)     The Trustee shall, by an instrument in writing, appoint a
temporary chairman of the meeting, unless the meeting shall have been called by
the Company or by the Noteholders as provided in Section 11.03 hereof, in which
case the Company or Noteholders calling the meeting, as the case may be, shall
in like manner appoint a temporary chairman. A permanent chairman and a
permanent secretary of the meeting shall be elected by the Holders of a majority
in aggregate principal amount of the Notes present in person or by proxy at the
meeting.

            (c)     Subject to Section 10.04 hereof, at any meeting each
Noteholder or proxy shall be entitled to one vote for each $1,000 principal
amount of Notes held or represented by such Noteholder; PROVIDED that no vote
shall be cast or counted at any meeting in respect of any Note determined to be
not outstanding. The chairman of the meeting shall have no right to vote other
than by virtue of Notes held by such chairman or instruments in writing as
aforesaid duly designating such chairman as the person to vote on behalf of
other Noteholders. At any meeting of Noteholders duly called pursuant to Section
11.02 or 11.03 hereof, the presence of persons holding or representing Notes in
an aggregate principal amount sufficient to take action on any business for the
transaction for which such meeting was called shall constitute a quorum. Any
meeting of Noteholders duly called pursuant to Section 11.02 or 11.03 hereof may
be adjourned from time to time by the Holders of a majority in aggregate
principal amount of the Notes present in person or by proxy at the meeting,
whether or not constituting a quorum, and the meeting may be held as so
adjourned without further notice.

     Section 11.06  VOTING. The vote upon any resolution submitted to any
meeting of Noteholders shall be by written ballots on which shall be subscribed
the signatures of the Holders of Notes or of their representatives by proxy and
the principal amount of Notes held or represented by them. The permanent
chairman of the meeting shall appoint two inspectors of votes who shall count
all votes cast at the meeting for or against any resolution and who shall make
and file with the secretary of the meeting their verified written reports in
duplicate of all votes cast at the meeting. A record in duplicate of the
proceedings of such meeting of Noteholders shall be prepared by the secretary of
the meeting and there shall be attached to said record the original reports of
the inspectors of votes on any vote by ballot taken thereat and affidavits by
one or more persons having knowledge of the facts setting forth a copy of the
notice of the meeting and showing that said notice was given as provided in
Section 11.02 hereof. The record shall show the aggregate principal amount of
the Notes voting in favor of or against any resolution. The record shall be
signed and verified by the affidavits of the permanent chairman and secretary of
the meeting and one of the duplicates shall be delivered to the Company and the
other to the Trustee to be preserved by the Trustee and the Trustee shall have
the ballots taken at the meeting attached to such duplicate. Any record so
signed and verified shall be conclusive evidence of the matters therein stated.

                                       52
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     Section 11.07  RIGHTS OF TRUSTEE OR NOTEHOLDERS NOT DELAYED. Nothing in
this Article XI shall be deemed or construed to authorize or permit, by reason
of any call of a meeting of Noteholders or any rights expressly or impliedly
conferred hereunder to make such call, any hindrance or delay in the exercise of
any right or rights conferred upon or reserved to the Trustee or to the Holders
of Notes under any of the provisions of this Indenture or of the Notes.

                                   ARTICLE XII

               CONSOLIDATION, MERGER, SALE, TRANSFER OR CONVEYANCE

     Section 12.01  COMPANY MAY CONSOLIDATE, ETC. ONLY ON CERTAIN TERMS. The
Company shall not consolidate with or merge into any other corporation or sell
or otherwise dispose of its properties as or substantially as an entirety to any
Person unless the Company has delivered to the Trustee an Officers' Certificate
and an Opinion of Counsel each stating that such consolidation, merger,
conveyance or transfer and the supplemental indenture referred to in clause (b)
below comply with this Article XII and that all conditions precedent herein
provided for have been complied with, and the corporation formed by such
consolidation or into which the Company is merged or the Person which receives
such properties pursuant to such sale, transfer or other disposition (a) shall
be a corporation organized and existing under the laws of the United States of
America, any state thereof or the District of Columbia; (b) shall expressly
assume, by an indenture supplemental hereto, executed and delivered to the
Trustee, in form reasonably satisfactory to the Trustee, the due and punctual
payment of the principal of and premium and interest on all of the Notes and the
performance of every covenant of this Indenture on the part of the Company to be
performed or observed and (c) if such consolidation, merger, sale, transfer or
other disposition occurs prior to the Release Date, shall expressly assume, by
an indenture supplemental to the First Mortgage, executed and delivered to the
Mortgage Trustee, the due and punctual payment of the principal of and premium
and interest on all of the Senior Note First Mortgage Bonds and the performance
of every covenant of the First Mortgage on the part of the Company to be
performed or observed.

     Anything in this Indenture to the contrary notwithstanding, the conveyance
or other transfer by the Company of (a) all or any portion of its facilities for
the generation of electric energy, (b) all of its facilities for the
transmission of electric energy or (c) all of its facilities for the
distribution of natural gas, in each case considered alone or in any combination
with properties described in any other clause, shall in no event be deemed to
constitute a conveyance or other transfer of all the properties of the Company,
as or substantially as an entirety. The character of particular facilities shall
be determined in accordance with the Uniform System of Accounts prescribed for
public utilities and licensees subject to the Federal Power Act, as amended, to
the extent applicable.

     Section 12.02  SUCCESSOR CORPORATION SUBSTITUTED. Upon any consolidation or
merger, or any sale, transfer or other disposition of the properties of the
Company substantially as an entirety in accordance with Section 12.01 hereof,
the successor corporation formed by such consolidation or into which the Company
is merged or the Person to which such sale, transfer or other disposition is
made shall succeed to, and be substituted for and may exercise every right and
power of, the Company under this Indenture with the same effect as if such
successor

                                       53
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corporation or Person had been named as the Company herein and the Company shall
be released from all obligations hereunder.

                                  ARTICLE XIII

                             SUPPLEMENTAL INDENTURES

     Section 13.01  SUPPLEMENTAL INDENTURES WITHOUT CONSENT OF NOTEHOLDERS. (a)
The Company, when authorized by Board Resolution, and the Trustee may from time
to time and at any time enter into an indenture or indentures supplemental
hereto for one or more of the following purposes:

                    (1)    to make such provision in regard to matters or
     questions arising under this Indenture as may be necessary or desirable,
     and not inconsistent with this Indenture or prejudicial to the interests of
     the Holders in any material respect, for the purpose of supplying any
     omission, curing any ambiguity, or curing, correcting or supplementing any
     defective or inconsistent provision;

                    (2)    to change or eliminate any of the provisions of this
     Indenture, PROVIDED that any such change or elimination shall become
     effective only when there is no Note outstanding created prior to the
     execution of such supplemental indenture which is entitled to the benefit
     of such provision or such change or elimination is applicable only to Notes
     issued after the effective date of such change or elimination;

                    (3)    to establish the form of Notes of any series as
     permitted by Section 2.01 hereof or to establish or reflect any terms of
     any Note of any series determined pursuant to Section 2.05 hereof;

                    (4)    to evidence the succession of another corporation to
     the Company as permitted hereunder, and the assumption by any such
     successor of the covenants of the Company herein and in the Notes;

                    (5)    to grant to or confer upon the Trustee for the
     benefit of the Holders any additional rights, remedies, powers or
     authority;

                    (6)    to permit the Trustee to comply with any duties
     imposed upon it by law;

                    (7)    to specify further the duties and responsibilities
     of, and to define further the relationships among, the Trustee, any
     Authenticating Agent and any paying agent, and to evidence the succession
     of a successor Trustee as permitted hereunder;

                    (8)    to add to the covenants of the Company for the
     benefit of the Holders of one or more series of Notes, to add to the
     security for all of the Notes, to surrender a right or power conferred on
     the Company herein or to add any Event of Default with respect to one or
     more series of Notes;

                                       54
<Page>

                    (9)    to add provisions permitting the Company to be
     released with respect to one or more series of outstanding Notes from its
     obligations under Sections 6.07, 6.08 or Article XII (and providing that no
     Event of Default shall be deemed to have occurred as a result of the
     Company's noncompliance with such obligations) if the Company makes the
     deposit of cash and/or U.S. Government Obligations with respect to such
     series of Notes required by Section 5.01 and otherwise complies with the
     requirements of such Section (except that the opinion of counsel referred
     to in Section 5.01(a)(3) need not be based on an External Tax
     Pronouncement);

                    (10)   to comply with the Company's obligations under
     Section 6.07; and

                    (11)   to make any other change that is not prejudicial to
     the Holders.

            (b)     The Trustee is hereby authorized to join with the Company in
the execution of any such supplemental indenture, to make any further
appropriate agreements and stipulations which may be therein contained and to
accept the conveyance, transfer and assignment of any property thereunder, but
the Trustee shall not be obligated to enter into any such supplemental indenture
which affects the Trustee's own rights, duties or immunities under this
Indenture or otherwise.

            (c)     Any supplemental indenture authorized by this Section 13.01
may be executed by the Company and the Trustee without the consent of the
Holders of any of the Notes at the time outstanding, notwithstanding any of the
provisions of Section 13.02 hereof.

     Section 13.02  SUPPLEMENTAL INDENTURES WITH CONSENT OF NOTEHOLDERS. (a)
With the consent (evidenced as provided in Section 10.01 hereof) of the Holders
of a majority in aggregate principal amount of the Notes of all series at the
time outstanding, considered as one class, the Company, when authorized by Board
Resolution, and the Trustee may from time to time and at any time enter into an
indenture or indentures supplemental hereto for the purpose of adding any
provisions to, or changing in any manner or eliminating any of the provisions
of, this Indenture or of any supplemental indenture or of modifying or waiving
in any manner the rights of the Noteholders; provided that no such supplemental
indenture shall:

                    (1)    change the Stated Maturity of any Note, or reduce
     the rate (or change the method of calculation thereof) or extend the time
     of payment of interest thereon, or reduce the principal amount thereof or
     any premium thereon, or change the coin or currency in which the principal
     of any Note or any premium or interest thereon is payable, or change the
     date on which any Note may be redeemed or adversely affect the rights of
     the Noteholders to institute suit for the enforcement of any payment of
     principal of or any premium or interest on any Note, or impair the interest
     hereunder of the Trustee in the Senior Note First Mortgage Bonds, or prior
     to the Release Date, reduce the principal amount of any series of Senior
     Note First Mortgage Bonds to an amount less than the principal amount of
     the Related Series of Notes or alter the payment provisions of such Senior
     Note First Mortgage Bonds in a manner adverse to the Holders of the Notes,
     in each case without the consent of the Holder of each Note so affected; or

                                       55
<Page>

                    (2)    modify this Section 13.02(a) or reduce the aforesaid
     percentage of Notes, the Holders of which are required to consent to any
     such supplemental indenture or to reduce the percentage of Notes, the
     Holders of which are required to waive Events of Default, in each case,
     without the consent of the Holders of all of the Notes affected thereby
     then outstanding.

            (b)     Upon the request of the Company, accompanied by a copy of
the Board Resolution authorizing the execution of any such supplemental
indenture, and upon the filing with the Trustee of evidence of the consent of
Noteholders as aforesaid, the Trustee shall join with the Company in the
execution of such supplemental indenture unless such supplemental indenture
affects the Trustee's own rights, duties or immunities under this Indenture or
otherwise, in which case the Trustee may in its discretion, but shall not be
obligated to, enter into such supplemental indenture.

            (c)     A supplemental indenture which changes, waives or eliminates
any covenant or other provision of this Indenture (or any supplemental
indenture) which has expressly been included solely for the benefit of one or
more series of Notes, or which modifies the rights of the Holders of Notes of
such series with respect to such covenant or provision, shall be deemed not to
affect the rights under this Indenture of the Holders of Notes of any other
series.

            (d)     It shall not be necessary for the consent of the Holders of
Notes under this Section 13.02 to approve the particular form of any proposed
supplemental indenture, but it shall be sufficient if such consent shall approve
the substance thereof.

            (e)     Promptly after the execution by the Company and the Trustee
of any supplemental indenture pursuant to this Section 13.02, the Trustee shall
give notice in the manner provided in Section 15.10 hereof, setting forth in
general terms the substance of such supplemental indenture, to all Noteholders.
Any failure of the Trustee to give such notice or any defect therein shall not,
however, in any way impair or affect the validity of any such supplemental
indenture.

     Section 13.03  COMPLIANCE WITH TRUST INDENTURE ACT; EFFECT OF SUPPLEMENTAL
INDENTURES. Any supplemental indenture executed pursuant to this Article XIII
shall comply with the TIA. Upon the execution of any supplemental indenture
pursuant to this Article XIII, the Indenture shall be and be deemed to be
modified and amended in accordance therewith and the respective rights,
limitations of rights, obligations, duties and immunities under this Indenture
of the Trustee, the Company and the Noteholders shall thereafter be determined,
exercised and enforced hereunder subject in all respects to such modifications
and amendments, and all the terms and conditions of any such supplemental
indenture shall be and be deemed to be part of the terms and conditions of this
Indenture for any and all purposes.

     Section 13.04  NOTATION ON NOTES. Notes of any series authenticated and
delivered after the execution of any supplemental indenture pursuant to this
Article XIII may bear a notation in form approved by the Trustee as to any
matter provided for in such supplemental indenture. If the Company shall so
determine, new Notes of any series so modified as approved by the Trustee and
the Board of Directors with respect to any modification of this Indenture
contained in any

                                       56
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such supplemental indenture may be prepared and executed by the Company,
authenticated by the Trustee and delivered in exchange for the Notes of such
series then outstanding.

     Section 13.05  EVIDENCE OF COMPLIANCE OF SUPPLEMENTAL INDENTURE TO BE
FURNISHED TRUSTEE. The Trustee, subject to Sections 9.01 and 9.02 hereof, may
receive an Officers' Certificate and an Opinion of Counsel as conclusive
evidence that any supplemental indenture executed pursuant hereto complies with
the requirements of this Article XIII.

                                   ARTICLE XIV

                           IMMUNITY OF INCORPORATORS,
                      STOCKHOLDERS, OFFICERS AND DIRECTORS

     Section 14.01  INDENTURE AND NOTES SOLELY CORPORATE OBLIGATIONS. No
recourse for the payment of the principal of or any premium or interest on any
Note or any Senior Note First Mortgage Bond, or for any claim based thereon or
otherwise in respect thereof, and no recourse under or upon any obligation,
covenant or agreement of the Company, contained in this Indenture, the First
Mortgage or in any supplemental indenture, or in any Note or in any Senior Note
First Mortgage Bond, or because of the creation of any indebtedness represented
thereby, shall be had against any incorporator, stockholder, officer or
director, as such, past, present or future, of the Company or of any successor
corporation, either directly or through the Company or any successor
corporation, whether by virtue of any constitution, statute or rule of law, or
by the enforcement of any assessment or penalty or otherwise; it being expressly
understood that all such liability is hereby expressly waived and released as a
condition of, and as a consideration for, the execution of this Indenture and
the issuance of the Notes.

                                   ARTICLE XV

                            MISCELLANEOUS PROVISIONS

     Section 15.01  PROVISIONS BINDING ON COMPANY'S SUCCESSORS. All the
covenants, stipulations, promises and agreements made by the Company in this
Indenture shall bind its successors and assigns whether so expressed or not.

     Section 15.02  OFFICIAL ACTS BY SUCCESSOR CORPORATION. Any act or
proceeding by any provision of this Indenture authorized or required to be done
or performed by any board, committee or officer of the Company shall and may be
done and performed with like force and effect by the like board, committee or
officer of any corporation that shall at the time be the lawful successor of the
Company.

     Section 15.03  NOTICES. Any notice or demand which by any provision of this
Indenture is required or permitted to be given or served by the Trustee or by
the Noteholders on the Company may be given or served by being deposited postage
prepaid in a post office letter box addressed (until another address is filed by
the Company with the Trustee) at the Principal Executive Offices of the Company,
to the attention of the Secretary. Any notice, direction, request or demand by
any Noteholder, the Company or the Mortgage Trustee to or upon the Trustee shall
be deemed to have been sufficiently given or made, for all purposes, if given or

                                       57
<Page>

made in writing at the corporate trust office of the Trustee, Attention:
Corporate Trust Administration, with a copy to BNY Trust Company of Missouri,
911 Washington Avenue, St. Louis, Missouri 63101, Attention: Corporate Trust
Department.

     Section 15.04  GOVERNING LAW. This Indenture and each Note shall be
governed by and deemed to be a contract under, and construed in accordance with,
the laws of the State of New York, and for all purposes shall be construed in
accordance with the laws of said State without regard to conflicts of law
principles thereof.

     Section 15.05  EVIDENCE OF COMPLIANCE WITH CONDITIONS PRECEDENT. (a) Upon
any application or demand by the Company to the Trustee to take any action under
this Indenture, the Company shall furnish to the Trustee an Officers'
Certificate stating that all conditions precedent, if any, provided for in this
Indenture (including any covenants compliance with which constitutes a condition
precedent) relating to the proposed action have been complied with and an
Opinion of Counsel stating that, in the opinion of such counsel, all such
conditions precedent have been complied with.

            (b)     Each certificate or opinion provided for in this Indenture
and delivered to the Trustee with respect to compliance with a condition or
covenant provided for in this Indenture (other than the certificates delivered
pursuant to Section 6.06 hereof) shall include (1) a statement that each Person
making such certificate or opinion has read such covenant or condition and the
definitions relating thereto; (2) a brief statement as to the nature and scope
of the examination or investigation upon which the statements or opinions
contained in such certificate or opinion are based; (3) a statement that, in the
opinion of each such Person, such Person has made such examination or
investigation as is necessary to enable such Person to express an informed
opinion as to whether or not such covenant or condition has been complied with;
and (4) a statement as to whether or not, in the opinion of each such Person,
such condition or covenant has been complied with.

            (c)     In any case where several matters are required to be
certified by, or covered by an opinion of, any specified Person, it is not
necessary that all such matters be certified by, or covered by the opinion of,
only one such Person, or that they be so certified or covered by only one
document, but one such Person may certify or give an opinion with respect to
some matters and one or more other such Persons as to other matters, and any
such Person may certify or give an opinion as to such matters in one or several
documents.

            (d)     Any certificate or opinion of an officer of the Company may
be based, insofar as it relates to legal matters, upon a certificate or opinion
of, or representations by, counsel, unless such officer knows, or in the
exercise of reasonable care should know, that the certificate or opinion or
representations with respect to the matters upon which such certificate or
opinion is based are erroneous. Any such certificate or opinion of counsel
delivered under the Indenture may be based, insofar as it relates to factual
matters, upon a certificate or opinion of, or representations by, an officer or
officers of the Company stating that the information with respect to such
factual matters is in the possession of the Company, unless such person knows,
or in the exercise of reasonable care should know, that the certificate or
opinion of representations with respect to such matters are erroneous. Any
opinion of counsel delivered hereunder may contain standard exceptions and
qualifications reasonably satisfactory to the Trustee.

                                       58
<Page>

            (e)     Any certificate, statement or opinion of any officer of the
Company, or of counsel, may be based, insofar as it relates to accounting
matters, upon a certificate or opinion of or representations by an independent
public accountant or firm of accountants, unless such officer or counsel, as the
case may be, knows that the certificate or opinions or representations with
respect to the accounting matters upon which the certificate, statement or
opinion of such officer or counsel may be based as aforesaid are erroneous, or
in the exercise of reasonable care should know that the same are erroneous. Any
certificate or opinion of any firm of independent public accountants filed with
the Trustee shall contain a statement that such firm is independent.

            (f)     Where any Person is required to make, give or execute two or
more applications, requests, consents, certificates, statements, opinions or
other instruments under this Indenture, they may, but need not, be consolidated
and form one instrument.

     Section 15.06  BUSINESS DAYS. Unless otherwise provided pursuant to Section
2.05(c) hereof, in any case where the date of Maturity of the principal of or
any premium or interest on any Note or the date fixed for redemption of any Note
is not a Business Day, then payment of such principal or any premium or interest
need not be made on such date but may be made on the next succeeding Business
Day with the same force and effect as if made on the date of Maturity or the
date fixed for redemption, and, in the case of timely payment thereof, no
interest shall accrue for the period from and after such Interest Payment Date
or the date on which the principal or premium of the Note is required to be
paid.

     Section 15.07  TRUST INDENTURE ACT TO CONTROL. If and to the extent that
any provision of this Indenture limits, qualifies or conflicts with the duties
imposed by the TIA, such required provision of the TIA shall govern.

     Section 15.08  TABLE OF CONTENTS, HEADINGS, ETC. The table of contents and
the titles and headings of the articles and sections of this Indenture have been
inserted for convenience of reference only, are not to be considered a part
hereof, and shall in no way modify or restrict any of the terms or provisions
hereof.

     Section 15.09  EXECUTION IN COUNTERPARTS. This Indenture may be executed in
any number of counterparts, each of which shall be an original, but such
counterparts shall together constitute but one and the same instrument.

     Section 15.10  MANNER OF MAILING NOTICE TO NOTEHOLDERS. (a) Any notice or
demand which by any provision of this Indenture is required or permitted to be
given or served by the Trustee or the Company to or on the Holders of Notes, as
the case may be, shall be given or served by first-class mail, postage prepaid,
addressed to the Holders of such Notes at their last addresses as the same
appear on the register for the Notes referred to in Section 2.06, and any such
notice shall be deemed to be given or served by being deposited in a post office
letter box in the form and manner provided in this Section 15.10. In case by
reason of the suspension of regular mail service or by reason of any other cause
it shall be impracticable to give notice to any Holder by mail, then such
notification to such Holder as shall be made with the approval of the Trustee
shall constitute a sufficient notification for every purpose hereunder.

                                       59
<Page>

            (b)     The Company shall also provide any notices required under
this Indenture by publication, but only to the extent that such publication is
required by the TIA, the rules and regulations of the Commission or any
securities exchange upon which any series of Notes is listed.

     Section 15.11  APPROVAL BY TRUSTEE OF EXPERT OR COUNSEL. Wherever the
Trustee is required to approve an Expert or counsel who is to furnish evidence
of compliance with conditions precedent in this Indenture, such approval by the
Trustee shall be deemed to have been given upon the taking of any action by the
Trustee pursuant to and in accordance with the certificate or opinion so
furnished by such Expert or counsel.

                                       60
<Page>

     IN WITNESS WHEREOF, UNION ELECTRIC COMPANY has caused this Indenture to be
signed and acknowledged by its Senior Vice President, and attested by its
Assistant Secretary, and THE BANK OF NEW YORK has caused this Indenture to be
signed and acknowledged by its agent, as of the day and year first written
above.

                              UNION ELECTRIC COMPANY

                              By   /s/ Warner L. Baxter
                                ---------------------------------------------
                                Name:   Warner L. Baxter
                                Title:  Senior Vice President

ATTEST:

       /s/ Ronald K. Evans
--------------------------
Name:  Ronald K. Evans
Title: Assistant Secretary

                              THE BANK OF NEW YORK,
                                  AS TRUSTEE

                              By   /s/ Albert Lundy
                                ---------------------------------------------
                                Name:   Albert Lundy
                                Title:  As Agent for The Bank of New York

<Page>

                                    EXHIBIT A
                               FORM OF GLOBAL NOTE
                             [PRIOR TO RELEASE DATE]

REGISTERED                                                            REGISTERED

                            Ill. C. C. No. [       ]

     THIS NOTE IS A GLOBAL NOTE REGISTERED IN THE NAME OF THE DEPOSITARY
(REFERRED TO HEREIN) OR A NOMINEE THEREOF AND, UNLESS AND UNTIL IT IS EXCHANGED
IN WHOLE FOR THE INDIVIDUAL NOTES REPRESENTED HEREBY AS PROVIDED IN THE
INDENTURE REFERRED TO BELOW, THIS NOTE MAY NOT BE TRANSFERRED EXCEPT AS A WHOLE
BY THE DEPOSITARY TO A NOMINEE OF THE DEPOSITARY OR BY A NOMINEE OF THE
DEPOSITARY TO THE DEPOSITARY OR ANOTHER NOMINEE OF THE DEPOSITARY OR BY THE
DEPOSITARY OR ANY SUCH NOMINEE TO A SUCCESSOR DEPOSITARY OR A NOMINEE OF SUCH
SUCCESSOR DEPOSITARY. UNLESS THIS NOTE IS PRESENTED BY AN AUTHORIZED
REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY (55 WATER STREET, NEW YORK, NEW
YORK), TO THE TRUSTEE FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY
CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR SUCH OTHER NAME AS
REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY AND
ANY PAYMENT IS MADE TO CEDE & CO., ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR
VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL SINCE THE REGISTERED OWNER
HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.

                             UNION ELECTRIC COMPANY
                           SENIOR NOTE, __% DUE ______
CUSIP:                              NUMBER:

ORIGINAL ISSUE DATE:                PRINCIPAL AMOUNT:

INTEREST RATE:                      MATURITY DATE:

     UNION ELECTRIC COMPANY, a corporation of the State of Missouri (the
"COMPANY"), for value received hereby promises to pay to CEDE & CO. or
registered assigns, the principal sum of ______________ DOLLARS
($_______________) on the Maturity Date set forth above, and to pay interest
thereon from _____________ or from the most recent Interest Payment Date to
which interest has been paid or duly provided for, semi-annually in arrears on
the __________ and ___________ in each year, commencing __________ , at the per
annum Interest Rate set forth above, until the principal hereof is paid or made
available for payment. No interest shall accrue on the Maturity Date, so long as
the principal amount of this Note is paid on the Maturity Date. The interest so
payable and punctually paid or duly provided for on any such Interest Payment
Date (except for interest payable on the Maturity Date set forth above or, if
applicable, upon redemption or acceleration) will, as provided in the Indenture
(as defined below), be paid to the Person in whose name this

                                       A-1
<Page>

Note is registered at the close of business on the Regular Record Date for such
interest, which shall be the _________ or _________, as the case may be, next
preceding such Interest Payment Date; provided that the first Interest Payment
Date for any part of this Note, the Original Issue Date of which is after a
Regular Record Date but prior to the applicable Interest Payment Date, shall be
the Interest Payment Date following the next succeeding Regular Record Date; and
provided that interest payable on the Maturity Date set forth above or, if
applicable, upon redemption or acceleration, shall be payable to the Person to
whom principal shall be payable. Except as otherwise provided in the Indenture,
any such interest not so punctually paid or duly provided for shall forthwith
cease to be payable to the Holder on such Regular Record Date and shall be paid
to the Person in whose name this Note is registered at the close of business on
a Special Record Date for the payment of such defaulted interest to be fixed by
the Trustee, notice whereof shall be given to Noteholders not more than fifteen
days or fewer than ten days prior to such Special Record Date. Payment of the
principal of and interest and premium on this Note shall be payable pursuant to
Section 2.12(a) of the Indenture.

     This Note is a Global Note in respect of a duly authorized issue of Senior
Notes, __% Due _____ (the "NOTES OF THIS SERIES", which term includes any Global
Notes representing such Notes) of the Company issued and to be issued under an
Indenture dated as of August 15, 2002, between the Company and The Bank of New
York, as trustee (the "TRUSTEE", which term includes any successor Trustee under
the Indenture) and indentures supplemental thereto (collectively, the
"INDENTURE"). Under the Indenture, one or more series of notes may be issued
and, as used herein, the term "Notes" refers to the Notes of this Series and any
other outstanding series of Notes. Reference is hereby made to the Indenture for
a more complete statement of the respective rights, limitations of rights,
duties and immunities thereunder of the Company, the Trustee and the Noteholders
and of the terms upon which the Notes are and are to be authenticated and
delivered. This Note has been issued in respect of the series designated on the
first page hereof, in the aggregate principal amount of $_________.

     Prior to the Release Date (as hereinafter defined), the Notes will be
secured by first mortgage bonds (the "SENIOR NOTE FIRST MORTGAGE BONDS")
delivered by the Company to the Trustee for the benefit of the Holders of the
Notes, issued under the Indenture of Mortgage or Deed of Trust, dated June 15,
1937, from the Company to The Bank of New York, as successor trustee (the
"MORTGAGE TRUSTEE"), as supplemented and modified (collectively, the "FIRST
MORTGAGE"). Reference is made to the First Mortgage and the Indenture for a
description of the rights of the Trustee as holder of the Senior Note First
Mortgage Bonds, the property mortgaged and pledged, the nature and extent of the
security and the rights of the holders of first mortgage bonds, under the First
Mortgage and the rights of the Company and of the Mortgage Trustee in respect
thereof, the duties and immunities of the Mortgage Trustee and the terms and
conditions upon which the Senior Note First Mortgage Bonds are secured and the
circumstances under which additional first mortgage bonds may be issued.

     From and after such time as all first mortgage bonds (other than Senior
Note First Mortgage Bonds) issued under the First Mortgage have been retired
through payment, redemption or otherwise at, before or after the maturity
thereof (the "Release Date"), the Senior Note First Mortgage Bonds shall cease
to secure the Notes in any manner. In certain circumstances prior to the Release
Date as provided in the Indenture, the Company is permitted

                                       A-2
<Page>

to reduce the aggregate principal amount of a series of Senior Note First
Mortgage Bonds held by the Trustee, but in no event prior to the Release Date to
an amount less than the aggregate outstanding principal amount of the series of
Notes initially issued contemporaneously with such Senior Note First Mortgage
Bonds.

     Each Note of this Series shall be dated and issued as of the date of its
authentication by the Trustee and shall bear an Original Issue Date. Each Note
issued upon transfer, exchange or substitution of such Note shall bear the
Original Issue Date of such transferred, exchanged or substituted Note, as the
case may be.

     [Insert redemption provisions, if any]

     Interest payments for this Note shall be computed and paid on the basis of
a 360-day year of twelve 30-day months (and for any partial periods shall be
calculated on the basis of the number of days elapsed in a 360-day year of
twelve 30-day months). If any Interest Payment Date or date on which the
principal of this Note is required to be paid is not a Business Day, then
payment of principal, premium or interest need not be made on such date but may
be made on the next succeeding Business Day with the same force and effect as if
made on such Interest Payment Date or date on which the principal of this Note
is required to be paid and, in the case of timely payment thereof, no interest
shall accrue for the period from and after such Interest Payment Date or the
date on which the principal of this Note is required to be paid.

     The Company, at its option, and subject to the terms and conditions
provided in the Indenture, will be discharged from any and all obligations in
respect of the Notes (except for certain obligations including obligations to
register the transfer or exchange of Notes, replace stolen, lost or mutilated
Notes, maintain paying agencies and hold monies for payment in trust, all as set
forth in the Indenture) if the Company deposits with the Trustee money, U.S.
Government Obligations which through the payment of interest thereon and
principal thereof in accordance with their terms will provide money, or a
combination of money and U.S. Government Obligations, in any event in an amount
sufficient, without reinvestment, to pay all the principal of and any premium
and interest on the Notes on the dates such payments are due in accordance with
the terms of the Notes.

     If an Event of Default shall occur and be continuing, the principal of and
interest on the Notes may be declared due and payable in the manner and with the
effect provided in the Indenture and, upon such declaration, the Trustee shall
demand the redemption of the Senior Note First Mortgage Bonds to the extent
provided in the Indenture.

     The Indenture permits, with certain exceptions as therein provided, the
amendment thereof and the modifications of the rights and obligations of the
Company and the rights of the Noteholders under the Indenture at any time by the
Company and the Trustee with the consent of the Holders of not less than a
majority in principal amount of the outstanding Notes. Any such consent or
waiver by the Holder of this Note shall be conclusive and binding upon such
Holder and upon all future Holders of this Note and of any Note issued upon the
registration of transfer hereof or in exchange therefor or in lieu thereof
whether or not notation of such consent or waiver is made upon this Note.

                                       A-3
<Page>

     As set forth in and subject to the provisions of the Indenture, no Holder
of any Notes will have any right to institute any proceeding with respect to the
Indenture or for any remedy thereunder unless such Holder shall have previously
given to the Trustee written notice of a continuing Event of Default with
respect to such Notes, the Holders of not less than a majority in principal
amount of the outstanding Notes affected by such Event of Default shall have
made written request and offered reasonable indemnity to the Trustee to
institute such proceeding as Trustee and the Trustee shall have failed to
institute such proceeding within 60 days; provided that such limitations do not
apply to a suit instituted by the Holder hereof for the enforcement of payment
of the principal of and any premium or interest on this Note on or after the
respective due dates expressed here.

     No reference herein to the Indenture and to provisions of this Note or of
the Indenture shall alter or impair the obligation of the Company, which is
absolute and unconditional, to pay the principal of and any premium and interest
on this Note at the times, places and rates and the coin or currency prescribed
in the Indenture.

     As provided in the Indenture and subject to certain limitations therein set
forth, this Note may be transferred only as permitted by the legend hereto and
the provisions of the Indenture.

     The Indenture and the Notes shall be governed by, and construed in
accordance with, the laws of the State of New York without regard to conflicts
of law principles thereof.

     Unless the certificate of authentication hereon has been executed by the
Trustee, directly or through an Authenticating Agent by manual signature of an
authorized officer, this Note shall not be entitled to any benefit under the
Indenture or be valid or obligatory for any purpose.

     All terms used in this Note which are defined in the Indenture shall have
the meanings assigned to them in the Indenture unless otherwise indicated
herein.

                                       A-4
<Page>

     IN WITNESS WHEREOF, the Company has caused this instrument to be duly
executed.

                                    UNION ELECTRIC COMPANY

                                    By:
                                       -----------------------------------------
                                    Title:
                                          --------------------------------------
                                    Attest:
                                           -------------------------------------
                                    Title:
                                          --------------------------------------

TRUSTEE'S CERTIFICATE
OF AUTHENTICATION

Dated:

This Note is one of the Notes of the series
herein designated, described or provided for
in the within- mentioned Indenture.

The Bank of New York, AS TRUSTEE

By:
   -------------------------------
        AUTHORIZED SIGNATORY

                                       A-5
<Page>

                                  ABBREVIATIONS

     The following abbreviations, when used in the inscription on the face of
this instrument, shall be construed as though they were written out in full
according to applicable laws or regulations:

TEN COM -- as tenants in common           UNIF GIFT
                                          MIN ACT -    _____ Custodian ______
                                                       (Cust)         (Minor)
TEN ENT -- as tenants by the
entireties                                Under Uniform Gifts to Minors

JT TEN -- as joint tenants with right
 of survivorship and not as tenants in
 common                                   ______________________________________
                                                         State
                    Additional abbreviations may also be used
                          though not in the above list.

                              --------------------
               FOR VALUE RECEIVED the undersigned hereby sell(s),
                         assign(s) and transfer(s) unto

PLEASE INSERT SOCIAL SECURITY OR OTHER
IDENTIFYING NUMBER OF ASSIGNEE

________________________________________________________________________________

________________________________________________________________________________

________________________________________________________________________________
                   Please print or typewrite name and address
                      including postal zip code of assignee

--------------------------------------
the within note and all rights thereunder, hereby
irrevocably constituting and appointing attorney to
transfer said note on the books of the Company, with
full power of substitution in the premises.

Dated:  ____________________

                                  ----------------------------------------------
                                  NOTICE: The signature to this assignment must
                                  correspond with the name as written upon the
                                  face of the within instrument in every
                                  particular, without alteration or enlargement
                                  or any change whatever.

                                  Signature(s) must be guaranteed by a financial
                                  institution that is a member of the Securities
                                  Transfer Agents Medallion Program ("STAMP"),
                                  the Stock Exchange Medallion Program ("SEMP")
                                  or the New York Stock Exchange, Inc. Medallion
                                  Signature Program("MSP").

                                       A-6
<Page>

                                    EXHIBIT B
                                  FORM OF NOTE
                              PRIOR TO RELEASE DATE

REGISTERED                                                            REGISTERED
                            Ill. C. C. No. [        ]

                             UNION ELECTRIC COMPANY
                           SENIOR NOTE, __% DUE _____

CUSIP:                                    PRINCIPAL AMOUNT:
ORIGINAL ISSUE DATE:                      MATURITY DATE:
INTEREST RATE:                            NUMBER:

     UNION ELECTRIC COMPANY, a corporation of the State of Missouri (the
"COMPANY"), for value received hereby promises to pay to _____________ or
registered assigns, the principal sum of ___________ DOLLARS ($____________) on
the Maturity Date set forth above, and to pay interest thereon from ___________
or from the most recent date to which interest has been paid or duly provided
for, semi-annually in arrears on ________ and ________ in each year, commencing
___________, at the per annum Interest Rate set forth above, until the principal
hereof is paid or made available for payment. No interest shall accrue on the
Maturity Date, so long as the principal amount of this Note is paid in full on
the Maturity Date. The interest so payable and punctually paid or duly provided
for on any such Interest Payment Date (except for interest payable on the
Maturity Date set forth above or, if applicable, upon redemption or
acceleration) will, as provided in the Indenture (as defined below), be paid to
the Person in whose name this Note is registered at the close of business on the
Regular Record Date for such interest, which shall be the __________ or
__________, as the case may be, next preceding such Interest Payment Date;
provided that the first Interest Payment Date for any Note of this Series, the
Original Issue Date of which is after a Regular Record Date but prior to the
applicable Interest Payment Date, shall be the Interest Payment Date following
the next succeeding Regular Record Date; and provided, further, that interest
payable on the Maturity Date set forth above or, if applicable, upon redemption
or acceleration, shall be payable to the Person to whom principal shall be
payable. Except as otherwise provided in the Indenture (referred to on the
reverse hereof), any such interest not so punctually paid or duly provided for
will forthwith cease to be payable to the Holder on such Regular Record Date and
shall be paid to the Person in whose name this Note is registered at the close
of business on a Special Record Date for the payment of such defaulted interest
to be fixed by the Trustee, notice whereof shall be given to Noteholders not
more than fifteen days nor fewer than ten days prior to such Special Record
Date. Principal, applicable premium and interest due at the Maturity of this
Note shall be payable in immediately available funds when due upon presentation
and surrender of this Note at the corporate trust office of the Trustee or at
the authorized office of any paying agent in the Borough of Manhattan, The City
and State of New York. Interest on this Note (other than interest payable at
Maturity) shall be paid by check payable in clearinghouse funds to the Holder as
its name appears on the register; provided that if the Trustee receives a
written request from any Holder of Notes, the aggregate principal amount of all
of which having the same Interest Payment Date as this Note equals or exceeds
$10,000,000, on or before the applicable Regular Record Date for such Interest
Payment Date, interest on this Note shall be paid by wire transfer

                                       B-1
<Page>

of immediately available funds to a bank within the continental United States
designated by such Holder in its request or by direct deposit into the account
of such Holder designated by such Holder in its request if such account is
maintained with the Trustee or any paying agent.

     REFERENCE IS HEREBY MADE TO THE FURTHER PROVISIONS OF THIS NOTE SET FORTH
IN FULL ON THE REVERSE HEREOF, WHICH FURTHER PROVISIONS SHALL FOR ALL PURPOSES
HAVE THE SAME EFFECT AS IF SET FORTH IN FULL AT THIS PLACE.

     Unless the certificate of authentication hereon has been executed by the
Trustee referred to on the reverse hereof, directly or through an Authenticating
Agent by manual signature of an authorized officer, this Note shall not be
entitled to any benefit under the Indenture or be valid or obligatory for any
purpose.

     IN WITNESS WHEREOF, the Company has caused this instrument to be duly
executed.

                                    UNION ELECTRIC COMPANY

                                    By:
                                           -------------------------------------
                                    Title:
                                           -------------------------------------
                                    Attest:
                                           -------------------------------------
                                    Title:
                                           -------------------------------------

TRUSTEE'S CERTIFICATE
OF AUTHENTICATION
Dated:

This Note is one of the Notes of the series
herein designated, described or provided for
in the within- mentioned Indenture.

The Bank of New York, AS TRUSTEE

By:
   -------------------------------
         AUTHORIZED SIGNATORY

                                       B-2
<Page>

                            [FORM OF REVERSE OF NOTE]
                UNION ELECTRIC COMPANY SENIOR NOTE, __% DUE ____

     This Note is one of a duly authorized issue of Senior Notes, __% Due ____
(the "NOTES OF THIS SERIES") of the Company issued and to be issued under an
Indenture dated as of August 15, 2002 between the Company and The Bank of New
York, as trustee (the "TRUSTEE", which term includes any successor Trustee under
the Indenture) and indentures supplemental thereto (collectively, the
"INDENTURE"). Under the Indenture, one or more series of notes may be issued
and, as used herein, the term "Notes" refers to the Notes of this Series and any
other outstanding series of Notes. Reference is hereby made to the Indenture for
a more complete statement of the respective rights, limitations of rights,
duties and immunities thereunder of the Company, the Trustee and the Noteholders
and of the terms upon which the Notes are and are to be authenticated and
delivered. This Note is one of the series designated on the face hereof, limited
in aggregate principal amount to $___________.

     Prior to the Release Date (as hereinafter defined), the Notes will be
secured by first mortgage bonds (the "SENIOR NOTE FIRST MORTGAGE BONDS")
delivered by the Company to the Trustee for the benefit of the Holders of the
Notes, issued under the Indenture of Mortgage or Deed of Trust, dated as of June
15, 1937, from the Company to The Bank of New York, as successor trustee (the
"MORTGAGE TRUSTEE"), as supplemented and modified (collectively, the "FIRST
MORTGAGE"). Reference is made to the First Mortgage and the Indenture for a
description of the rights of the Trustee as holder of the Senior Note First
Mortgage Bonds, the property mortgaged and pledged, the nature and extent of the
security and the rights of the holders of first mortgage bonds, under the First
Mortgage and the rights of the Company and of the Mortgage Trustee in respect
thereof, the duties and immunities of the Mortgage Trustee and the terms and
conditions upon which the Senior Note First Mortgage Bonds are secured and the
circumstances under which additional first mortgage bonds may be issued.

     From and after such time as all first mortgage bonds (other than Senior
Note First Mortgage Bonds) issued under the First Mortgage have been retired
through payment, redemption or otherwise at, before or after the maturity
thereof (the "Release Date"), the Senior Note First Mortgage Bonds shall cease
to secure the notes in any manner. In certain circumstances prior to the Release
Date as provided in the Indenture, the Company is permitted to reduce the
aggregate principal amount of a series of Senior Note First Mortgage Bonds held
by the Trustee, but in no event prior to the Release Date to an amount less than
the aggregate outstanding principal amount of the series of Notes initially
issued contemporaneously with such Senior Note First Mortgage Bonds.

     Each Note of this Series shall be dated and issued as of the date of its
authentication by the Trustee and shall bear an Original Issue Date. Each Note
issued upon transfer, exchange or substitution of such Note shall bear the
Original Issue Date of such transferred, exchanged or substituted Note, as the
case may be.

     [Insert redemption provisions, if any]

                                       B-3
<Page>

     Interest payments for this Note shall be computed and paid on the basis of
a 360-day year of twelve 30-day months (and for any partial periods shall be
calculated on the basis of the number of days elapsed in a 360-day year of
twelve 30-day months). If any Interest Payment Date or the date on which the
principal of this Note is required to paid is not a Business Day, then payment
of principal, premium or interest need not be made on such date but may be made
on the next succeeding Business Day with the same force and effect as if made on
such Interest Payment Date or the date on which the principal of this Note is
required to be paid, and, in the case of timely payment thereof, no interest
shall accrue for the period from and after such Interest Payment Date or the
date on which the principal of this Note is required to be paid.

     The Company, at its option, and subject to the terms and conditions
provided in the Indenture, will be discharged from any and all obligations in
respect of the Notes (except for certain obligations including obligations to
register the transfer or exchange of Notes, replace stolen, lost or mutilated
Notes, maintain paying agencies and hold monies for payment in trust, all as set
forth in the Indenture) if the Company deposits with the Trustee money, U.S.
Government Obligations which through the payment of interest thereon and
principal thereof in accordance with their terms will provide money, or a
combination of money and U.S. Government Obligations, in any event in an amount
sufficient, without reinvestment, to pay all the principal of and any premium
and interest on the Notes on the dates such payments are due in accordance with
the terms of the Notes.

     If an Event of Default shall occur and be continuing, the principal of and
interest on the Notes may be declared due and payable in the manner and with the
effect provided in the Indenture and, upon such declaration, the Trustee shall
demand the redemption of the Senior Note First Mortgage Bonds to the extent
provided in the Indenture.

     The Indenture permits, with certain exceptions as therein provided, the
amendment thereof and the modifications of the rights and obligations of the
Company and the rights of the Noteholders under the Indenture at any time by the
Company and the Trustee with the consent of the Holders of not less than a
majority in principal amount of the outstanding Notes. Any such consent or
waiver by the Holder of this Note shall be conclusive and binding upon such
Holder and upon all future Holders of this Note and of any Note issued upon the
registration of transfer hereof or in exchange therefor in lieu thereof whether
or not notation of such consent or waiver is made upon the Note.

     As set forth in and subject to the provisions of the Indenture, no Holder
of any Notes will have any right to institute any proceeding with respect to the
Indenture or for any remedy thereunder unless such Holder shall have previously
given to the Trustee written notice of a continuing Event of Default with
respect to such Notes, the Holders of not less than a majority in principal
amount of the outstanding Notes affected by such Event of Default shall have
made written request and offered reasonable indemnity to the Trustee to
institute such proceeding as Trustee and the Trustee shall have failed to
institute such proceeding within 60 days; provided that such limitations do not
apply to a suit instituted by the Holder hereof for the enforcement of payment
of the principal of and any premium or interest on this Note on or after the
respective due dates expressed here.

                                       B-4
<Page>

     No reference herein to the Indenture and to provisions of this Note or of
the Indenture shall alter or impair the obligation of the Company, which is
absolute and unconditional, to pay the principal of and any premium and interest
on this Note at the times, places and rates and the coin or currency prescribed
in the Indenture.

     As provided in the Indenture and subject to certain limitations therein set
forth, the transfer of this Note is registrable in the Note register. Upon
surrender of this Note for registration or transfer at the corporate trust
office of the Trustee or such other office or agency as may be designated by the
Company in the Borough of Manhattan, the City and State of New York, endorsed by
or accompanied by a written instrument of transfer in form satisfactory to the
Company and the Note registrar, duly executed by the Holder hereof or the
attorney in fact of such Holder duly authorized in writing, one or more new
Notes of this Series of like tenor and of authorized denominations and for the
same aggregate principal amount will be issued to the designated transferee or
transferees.

     The Notes of this Series are issuable only in registered form, without
coupons, in denominations of $1,000 and any integral multiple thereof. As
provided in the Indenture and subject to certain limitations therein set forth,
Notes of this Series are exchangeable for a like aggregate principal amount of
Notes of this Series of like tenor and of a different authorized denomination,
as requested by the Holder surrendering the same.

     No service charge shall be made for any such registration of transfer or
exchange but the Company may require payment of a sum sufficient to cover any
tax or other governmental charge payable in connection therewith.

     Prior to due presentment of this Note for registration of transfer, the
Company, the Trustee and any agent of the Company or the Trustee may treat the
Person in whose name this Note is registered as the owner thereof for all
purposes, whether or not this Note is overdue, and neither the Company, the
Trustee nor any such agent shall be affected by notice to the contrary.

     The Indenture and the Notes shall be governed by, and construed in
accordance with, the laws of the State of New York without regard to conflicts
of law principles thereof.

     All terms used in this Note which are defined in the Indenture shall have
the meanings assigned to them in the Indenture.

                                       B-5
<Page>

                                  ABBREVIATIONS

     The following abbreviations, when used in the inscription on the face of
this instrument, shall be construed as though they were written out in full
according to applicable laws or regulations:

TEN COM -- as tenants in common           UNIF GIFT
                                          MIN ACT -     _____ Custodian ______
                                                        (Cust)         (Minor)
TEN ENT -- as tenants by the
entireties                                Under Uniform Gifts to Minors

JT TEN -- as joint tenants with right
 of survivorship and not as tenants in
 common                                   _____________________________________
                                                          State
                    Additional abbreviations may also be used
                          though not in the above list.

                              --------------------
               FOR VALUE RECEIVED the undersigned hereby sell(s),
                         assign(s) and transfer(s) unto

PLEASE INSERT SOCIAL SECURITY OR OTHER
IDENTIFYING NUMBER OF ASSIGNEE

________________________________________________________________________________

________________________________________________________________________________

________________________________________________________________________________
                   Please print or typewrite name and address
                      including postal zip code of assignee

----------------------------------------------
the within note and all rights thereunder, hereby
irrevocably constituting and appointing attorney to
transfer said note on the books of the Company, with full
power of substitution in the premises.
Dated:  ___________________

                                  ----------------------------------------------
                                  NOTICE: The signature to this assignment must
                                  correspond with the name as written upon the
                                  face of the within instrument in every
                                  particular, without alteration or enlargement
                                  or any change whatever.

                                  Signature(s) must be guaranteed by a financial
                                  institution that is a member of the Securities
                                  Transfer Agents Medallion Program ("STAMP"),
                                  the Stock Exchange Medallion Program ("SEMP")
                                  or the New York Stock Exchange, Inc. Medallion
                                  Signature Program("MSP").

                                       B-6
<Page>

                                    EXHIBIT C
                               FORM OF GLOBAL NOTE

                             FOLLOWING RELEASE DATE

REGISTERED                                                            REGISTERED
                           Ill. C. C. No. [          ]

     THIS NOTE IS A GLOBAL NOTE REGISTERED IN THE NAME OF THE DEPOSITARY
(REFERRED TO HEREIN) OR A NOMINEE THEREOF AND, UNLESS AND UNTIL IT IS EXCHANGED
IN WHOLE FOR THE INDIVIDUAL NOTES REPRESENTED HEREBY AS PROVIDED IN THE
INDENTURE REFERRED TO BELOW, THIS NOTE MAY NOT BE TRANSFERRED EXCEPT AS A WHOLE
BY THE DEPOSITARY TO A NOMINEE OF THE DEPOSITARY OR BY A NOMINEE OF THE
DEPOSITARY TO THE DEPOSITARY OR ANOTHER NOMINEE OF THE DEPOSITARY OR BY THE
DEPOSITARY OR ANY SUCH NOMINEE TO A SUCCESSOR DEPOSITARY OR A NOMINEE OF SUCH
SUCCESSOR DEPOSITARY. UNLESS THIS NOTE IS PRESENTED BY AN AUTHORIZED
REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY (55 WATER STREET, NEW YORK, NEW
YORK), TO THE TRUSTEE FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY
CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR SUCH OTHER NAME AS
REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY AND
ANY PAYMENT IS MADE TO CEDE & CO., ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR
VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL SINCE THE REGISTERED OWNER
HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.

                             UNION ELECTRIC COMPANY
                            SENIOR NOTE, __% DUE ____

CUSIP:                              NUMBER:
ORIGINAL ISSUE DATE:                PRINCIPAL AMOUNT:
INTEREST RATE:                      MATURITY DATE:

     UNION ELECTRIC COMPANY, a corporation of the State of Missouri (the
"COMPANY"), for value received hereby promises to pay to CEDE & CO. or
registered assigns, the principal sum of _____________ DOLLARS ($__________) on
the Maturity Date set forth above, and to pay interest thereon____________ or
from the most recent Interest Payment Date to which interest has been paid or
duly provided for, semi-annually in arrears on the __________ and __________ in
each year, commencing _____________, at the per annum Interest Rate set forth
above, until the principal hereof is paid or made available for payment. No
interest shall accrue on the Maturity Date, so long as the principal amount of
this Note is paid on the Maturity Date. The interest so payable and punctually
paid or duly provided for on any such Interest Payment Date (except for interest
payable on the Maturity Date set forth above or, if applicable, upon redemption
or acceleration) will, as provided in the Indenture (as defined below), be paid
to the Person in whose name this Note is registered at the close of business on
the Regular Record Date for such interest, which shall be the ___________ or
_________ , as the case may be, next

                                       C-1
<Page>

preceding such Interest Payment Date; provided, that the first Interest Payment
Date for any part of this Note, the Original Issue Date of which is after a
Regular Record Date but prior to the applicable Interest Payment Date, shall be
the Interest Payment Date following the next succeeding Regular Record Date; and
provided, that interest payable on the Maturity Date set forth above or, if
applicable, upon redemption or acceleration, shall be payable to the Person to
whom principal shall be payable. Except as otherwise provided in the Indenture,
any such interest not so punctually paid or duly provided for will forthwith
cease to be payable to the Holder on such Regular Record Date and shall be paid
to the Person in whose name this Note is registered at the close of business on
a Special Record Date for the payment of such defaulted interest to be fixed by
the Trustee, notice whereof shall be given to Noteholders not more than fifteen
days or fewer than ten days prior to such Special Record Date. Payment of the
principal of and interest and premium on this shall be payable pursuant to
Section 2.12(a) of the Indenture.

     This Note is a Global Note in respect of a duly authorized issue of Senior
Notes, __% Due ____ (the "NOTES OF THIS SERIES", which term includes any Global
Notes representing such Notes) of the Company issued and to be issued under an
Indenture dated as of August 15, 2002 between the Company and The Bank of New
York, as trustee (herein called the "TRUSTEE", which term includes any successor
Trustee under the Indenture) and indentures supplemental thereto (collectively,
the "INDENTURE"). Under the Indenture, one or more series of notes may be issued
and, as used herein, the term "Notes" refers to the Notes of this Series and any
other outstanding series of Notes. Reference is hereby made to the Indenture for
a more complete statement of the respective rights, limitations of rights,
duties and immunities thereunder of the Company, the Trustee and the Noteholders
and of the terms upon which the Notes are and are to be authenticated and
delivered. This Note has been issued in respect of the series designated on the
first page hereof, in the aggregate principal amount of $__________.

     Each Note of this Series shall be dated and issued as of the date of its
authentication by the Trustee and shall bear an Original Issue Date. Each Note
issued upon transfer, exchange or substitution of such Note or Global Note shall
bear the Original Issue Date of such transferred, exchanged or substituted Note
or Global Note, as the case may be.

     [Insert redemption provisions, if any]

     Interest payments for this Note shall be computed and paid on the basis of
a 360-day year of twelve 30-day months (and for any partial period shall be
calculated on the basis of the number of days elapsed in a 360-day year of
twelve 30-day months). In any case where any Interest Payment Date or date on
which the principal of this Note is required to be paid is not a Business Day,
then payment of principal, premium or interest need not be made on such date but
may be made on the next succeeding Business Day with the same force and effect
as if made on such Interest Payment Date or date on which the principal of this
Note is required to be paid and, in the case of timely payment thereof, no
interest shall accrue for the period from and after such Interest Payment Date
or the date on which the principal of this Note is required to be paid.

     The Company, at its option, and subject to the terms and conditions
provided in the Indenture, will be discharged from any and all obligations in
respect of the Notes (except for certain obligations including obligations to
register the transfer or exchange of Notes, replace stolen, lost or mutilated
Notes, maintain paying agencies and hold monies for payment in trust,

                                       C-2
<Page>

all as set forth in the Indenture) if the Company deposits with the Trustee
money, U.S. Government Obligations which through the payment of interest thereon
and principal thereof in accordance with their terms will provide money, or a
combination of money and U.S. Government Obligations, in any event in an amount
sufficient, without reinvestment, to pay all the principal of and any premium
and interest on the Notes on the dates such payments are due in accordance with
the terms of the Notes.

     If an Event of Default shall occur and be continuing, the principal of and
interest on the Notes may be declared due and payable in the manner and with the
effect provided in the Indenture.

     The Indenture permits, with certain exceptions as therein provided, the
amendment thereof and the modifications of the rights and obligations of the
Company and the rights of the Noteholders under the Indenture at any time by the
Company and the Trustee with the consent of the Holders of not less than a
majority in principal amount of the outstanding Notes. Any such consent or
waiver by the Holder of this Note shall be conclusive and binding upon such
Holder and upon all future Holders of this Note and of any Note issued upon the
registration of transfer hereof or in exchange therefor or in lieu thereof
whether or not notation of such consent or waiver is made upon this Note.

     As set forth in and subject to the provisions of the Indenture, no Holder
of any Notes will have any right to institute any proceeding with respect to the
Indenture or for any remedy thereunder unless such Holder shall have previously
given to the Trustee written notice of a continuing Event of Default with
respect to such Notes, the Holders of not less than a majority in principal
amount of the outstanding Notes affected by such Event of Default shall have
made written request and offered reasonable indemnity to the Trustee to
institute such proceeding as Trustee and the Trustee shall have failed to
institute such proceeding within 60 days; PROVIDED, HOWEVER, that such
limitations do not apply to a suit instituted by the Holder hereof for the
enforcement of payment of the principal of and any premium or interest on this
Note on or after the respective due dates expressed here.

     No reference herein to the Indenture and to provisions of this Note or of
the Indenture shall alter or impair the obligation of the Company, which is
absolute and unconditional, to pay the principal of and any premium and interest
on this Note at the times, places and rates and the coin or currency prescribed
in the Indenture.

     As provided in the Indenture and subject to certain limitations therein set
forth, this Note may be transferred only as permitted by the legend hereto and
the provisions of the Indenture.

     The Indenture and the Notes shall be governed by, and construed in
accordance with, the laws of the State of New York without regard to conflicts
of law principles thereof.

     Unless the certificate of authentication hereon has been executed by the
Trustee, directly or through an Authenticating Agent by manual signature of an
authorized officer, this Note shall not be entitled to any benefit under the
Indenture or be valid or obligatory for any purpose.

     All terms used in this Note which are defined in the Indenture shall have
the meanings assigned to them in the Indenture unless otherwise indicated
herein.

                                       C-3
<Page>

     IN WITNESS WHEREOF, the Company has caused this instrument to be duly
executed.

                                    UNION ELECTRIC COMPANY

                                    By:
                                           -------------------------------------
                                    Title:
                                           -------------------------------------
                                    Attest:
                                           -------------------------------------
                                    Title:
                                           -------------------------------------

TRUSTEE'S CERTIFICATE
OF AUTHENTICATION
Dated:

This Note is one of the Notes of the series
herein designated, described or provided for
in the within- mentioned Indenture.

The Bank of New York, AS TRUSTEE

By:
   -------------------------------
          AUTHORIZED SIGNATORY

                                       C-4
<Page>

                                  ABBREVIATIONS

     The following abbreviations, when used in the inscription on the face of
this instrument, shall be construed as though they were written out in full
according to applicable laws or regulations:

TEN COM -- as tenants in common           UNIF GIFT
                                          MIN ACT -     _____ Custodian ______
                                                        (Cust)          (Minor)
TEN ENT -- as tenants by the
entireties                                Under Uniform Gifts to Minors

JT TEN -- as joint tenants with right
 of survivorship and not as tenants in
 common                                   _____________________________________
                                                          State
                    Additional abbreviations may also be used
                          though not in the above list.

                              --------------------
               FOR VALUE RECEIVED the undersigned hereby sell(s),
                         assign(s) and transfer(s) unto

PLEASE INSERT SOCIAL SECURITY OR OTHER
IDENTIFYING NUMBER OF ASSIGNEE

________________________________________________________________________________

________________________________________________________________________________

________________________________________________________________________________
                   Please print or typewrite name and address
                      including postal zip code of assignee

---------------------------------------
the within note and all rights thereunder, hereby
irrevocably constituting and appointing attorney to
transfer said note on the books of the Company, with
full power of substitution in the premises.
Dated:  __________________

                                  ----------------------------------------------
                                  NOTICE: The signature to this assignment must
                                  correspond with the name as written upon the
                                  face of the within instrument in every
                                  particular, without alteration or enlargement
                                  or any change whatever.

                                  Signature(s) must be guaranteed by a financial
                                  institution that is a member of the Securities
                                  Transfer Agents Medallion Program ("STAMP"),
                                  the Stock Exchange Medallion Program ("SEMP")
                                  or the New York Stock Exchange, Inc. Medallion
                                  Signature Program ("MSP").

                                       C-5
<Page>

                                    EXHIBIT D
                                  FORM OF NOTE

                            [FOLLOWING RELEASE DATE]

REGISTERED                                                            REGISTERED
                               Ill. C. C. No. [    ]

                             UNION ELECTRIC COMPANY
                            SENIOR NOTE, __% DUE ____

CUSIP:                              PRINCIPAL AMOUNT:
ORIGINAL ISSUE DATE:                MATURITY DATE:
INTEREST RATE:                      NUMBER:

     UNION ELECTRIC COMPANY, a corporation of the State of Missouri (the
"COMPANY"), for value received hereby promises to pay to ____________ or
registered assigns, the principal sum of ____________ DOLLARS ($___________) on
the Maturity Date set forth above, and to pay interest thereon from ___________
or from the most recent date to which interest has been paid or duly provided
for, semi-annually in arrears on __________ and __________ in each year,
commencing ___________, at the per annum Interest Rate set forth above, until
the principal hereof is paid or made available for payment. No interest shall
accrue on the Maturity Date, so long as the principal amount of this Note is
paid in full on the Maturity Date. The interest so payable and punctually paid
or duly provided for on any such Interest Payment Date will (except for interest
payable on the Maturity Date or, if applicable, upon redemption or
acceleration), as provided in the Indenture (as defined below), be paid to the
Person in whose name this Note is registered at the close of business on the
Regular Record Date for such interest, which shall be the ___________ or
____________ , as the case may be, next preceding such Interest Payment Date;
provided that the first Interest Payment Date for any Note, the Original Issue
Date of which is after a Regular Record Date but prior to the applicable
Interest Payment Date, shall be the Interest Payment Date following the next
succeeding Regular Record Date; and provided, that interest payable on the
Maturity Date set forth above or, if applicable, upon redemption or
acceleration, shall be payable to the Person to whom principal shall be payable.
Except as otherwise provided in the Indenture (referred to on the reverse
hereof), any such interest not so punctually paid or duly provided for will
forthwith cease to be payable to the Holder on such Regular Record Date and
shall be paid to the Person in whose name this Note is registered at the close
of business on a Special Record Date for the payment of such defaulted interest
to be fixed by the Trustee, notice whereof shall be given to Noteholders not
more than fifteen days nor fewer than ten days prior to such Special Record
Date. Principal, applicable premium and interest due at the Maturity of this
Note shall be payable in immediately available funds when due upon presentation
and surrender of this Note at the corporate trust office of the Trustee or at
the authorized office of any paying agent in the Borough of Manhattan, The City
and State of New York. Interest on this Note (other than interest payable at
Maturity) shall be paid by check payable in clearinghouse funds to the Holder as
its name appears on the register; provided, that if the Trustee receives a
written request from any Holder of Notes, the aggregate principal amount of all
of which having the same Interest Payment Date as this Note equals or exceeds
$10,000,000, on or before the applicable Regular Record Date for such Interest

                                       D-1
<Page>

Payment Date, interest on the Note shall be paid by wire transfer of immediately
available funds to a bank within the continental United States (designated by
such Holder in its request or by direct deposit into the account of such Holder
designated by such Holder in its request if such account is maintained with the
Trustee or any paying agent.

     REFERENCE IS HEREBY MADE TO THE FURTHER PROVISIONS OF THIS NOTE SET FORTH
IN FULL ON THE REVERSE HEREOF, WHICH FURTHER PROVISIONS SHALL FOR ALL PURPOSES
HAVE THE SAME EFFECT AS IF SET FORTH IN FULL AT THIS PLACE.

     Unless the certificate of authentication hereon has been executed by the
Trustee referred to on the reverse hereof, directly or through an Authenticating
Agent by manual signature of an authorized officer, this Note shall not be
entitled to any benefit under the Indenture or be valid or obligatory for any
purpose.

     IN WITNESS WHEREOF, the Company has caused this instrument to be duly
executed.

                                    UNION ELECTRIC COMPANY

                                    By:
                                             -----------------------------------
                                    Title:
                                             -----------------------------------
                                    Attest:
                                             -----------------------------------
                                    Title:
                                             -----------------------------------

TRUSTEE'S CERTIFICATE
OF AUTHENTICATION
Dated:

This Note is one of the Notes of the series
herein designated, described or provided for
in the within- mentioned Indenture.

The Bank of New York, AS TRUSTEE

By:
   -------------------------------
          AUTHORIZED SIGNATORY

                                       D-2
<Page>

                            [FORM OF REVERSE OF NOTE]
                             UNION ELECTRIC COMPANY
                            SENIOR NOTE, __% DUE ____

     This Note is one of a duly authorized issue of Senior Notes, __% Due ____
Series (the "NOTES OF THIS SERIES") of the Company issued and to be issued under
an Indenture dated as of August 15, 2002, between the Company and The Bank of
New York, as trustee (herein called the "TRUSTEE", which term includes any
successor Trustee under the Indenture) and indentures supplemental thereto
(collectively, the "INDENTURE"). Under the Indenture, one or more series of
notes may be issued and, as used herein, the term "Notes" refers to the Notes of
this Series and any other outstanding series of Notes. Reference is hereby made
to the Indenture for a more complete statement of the respective rights,
limitations of rights, duties and immunities thereunder of the Company, the
Trustee and the Noteholders and of the terms upon which the Notes are and are to
be authenticated and delivered. This Note is one of the series designated on the
face hereof, limited in aggregate principal amount to $__________.

     Each Note of this Series shall be dated and issued as of the date of its
authentication by the Trustee and shall bear an Original Issue Date. Each Note
issued upon transfer, exchange or substitution of such Note shall bear the
Original Issue Date of such transferred, exchanged or substituted Note, as the
case may be.

     [Insert redemption provisions, if any]

     Interest payments for this Note shall be computed and paid on the basis of
a 360-day year of twelve 30-day months (and for any partial periods shall be
calculated on the basis of the number of days elapsed in a 360-day year of
twelve 30-day months). In any case where any Interest Payment Date or the date
on which the principal of this Note is required to paid is not a Business Day,
then payment of principal, premium or interest need not be made on such date but
may be made on the next succeeding Business Day with the same force and effect
as if made on such Interest Payment Date or the date on which the principal of
this Note is required to be paid, and, in the case of timely payment thereof, no
interest shall accrue for the period from and after such Interest Payment Date
or the date on which the principal of this Note is required to be paid.

     The Company, at its option, and subject to the terms and conditions
provided in the Indenture, will be discharged from any and all obligations in
respect of the Notes (except for certain obligations including obligations to
register the transfer or exchange of Notes, replace stolen, lost or mutilated
Notes, maintain paying agencies and hold monies for payment in trust, all as set
forth in the Indenture) if the Company deposits with the Trustee money, U.S.
Government Obligations which through the payment of interest thereon and
principal thereof in accordance with their terms will provide money, or a
combination of money and U.S. Government Obligations, in any event in an amount
sufficient, without reinvestment, to pay all the principal of and any premium
and interest on the Notes on the dates such payments are due in accordance with
the terms of the Notes.

     If an Event of Default shall occur and be continuing, the principal of the
Notes may be declared due and payable in the manner and with the effect provided
in the Indenture.

                                       D-3
<Page>

     The Indenture permits, with certain exceptions as therein provided, the
amendment thereof and the modifications of the rights and obligations of the
Company and the rights of the Noteholders under the Indenture at any time by the
Company and the Trustee with the consent of the Holders of not less than a
majority in principal amount of the outstanding Notes. Any such consent or
waiver by the Holder of this Note shall be conclusive and binding upon such
Holder and upon all future Holders of this Note and of any Note issued upon the
registration of transfer hereof or in exchange therefor in lieu thereof whether
or not notation of such consent or waiver is made upon the Note.

     As set forth in and subject to the provisions of the Indenture, no Holder
of any Notes will have any right to institute any proceeding with respect to the
Indenture or for any remedy thereunder unless such Holder shall have previously
given to the Trustee written notice of a continuing Event of Default with
respect to such Notes, the Holders of not less than a majority in principal
amount of the outstanding Notes affected by such Event of Default shall have
made written request and offered reasonable indemnity to the Trustee to
institute such proceeding as Trustee and the Trustee shall have failed to
institute such proceeding within 60 days; provided, however, that such
limitations do not apply to a suit instituted by the Holder hereof for the
enforcement of payment of the principal of and any premium or interest on this
Note on or after the respective due dates expressed here.

     No reference herein to the Indenture and to provisions of this Note or of
the Indenture shall alter or impair the obligation of the Company, which is
absolute and unconditional, to pay the principal of and any premium and interest
on this Note at the times, places and rates and the coin or currency prescribed
in the Indenture.

     As provided in the Indenture and subject to certain limitations therein set
forth, the transfer of this Note is registrable in the Note register. Upon
surrender of this Note for registration or transfer at the corporate trust
office of the Trustee or such other office or agency as may be designated by the
Company in the Borough of Manhattan, the City and State of New York, endorsed by
or accompanied by a written instrument of transfer in form satisfactory to the
Company and the Note registrar, duly executed by the Holder hereof or the
attorney in fact of such Holder duly authorized in writing, one or more new
Notes of this Series of like tenor and of authorized denominations and for the
same aggregate principal amount will be issued to the designated transferee or
transferees.

     The Notes of this Series are issuable only in registered form, without
coupons, in denominations of $1,000 and any integral multiple thereof. As
provided in the Indenture and subject to certain limitations therein set forth,
Notes of this Series are exchangeable for a like aggregate principal amount of
Notes of this Series of like tenor and of a different authorized denomination,
as requested by the Holder surrendering the same.

     No service charge shall be made for any such registration of transfer or
exchange but the Company may require payment of a sum sufficient to cover any
tax or other governmental charge payable in connection therewith.

     Prior to due presentment of this Note for registration of transfer, the
Company, the Trustee and any agent of the Company or the Trustee may treat the
Person in whose name this

                                       D-4
<Page>

Note is registered as the owner thereof for all purposes, whether or not this
Note is overdue, and neither the Company, the Trustee nor any such agent shall
be affected by notice to the contrary.

     The Indenture and the Notes shall be governed by, and construed in
accordance with, the laws of the State of New York without regard to conflicts
of law principles thereof.

     All terms used in this Note which are defined in the Indenture shall have
the meanings assigned to them in the Indenture.

                                       D-5
<Page>

                                  ABBREVIATIONS

     The following abbreviations, when used in the inscription on the face of
this instrument, shall be construed as though they were written out in full
according to applicable laws or regulations:

TEN COM -- as tenants in common           UNIF GIFT
                                          MIN ACT -     _____ Custodian ______
                                                        (Cust)          (Minor)
TEN ENT -- as tenants by the
entireties                                under Uniform Gifts to Minors

JT TEN -- as joint tenants with right
 of survivorship and not as tenants in
 common                                   ______________________________________
                                                         State
                    Additional abbreviations may also be used
                          though not in the above list.

                              --------------------
               FOR VALUE RECEIVED the undersigned hereby sell(s),
                         assign(s) and transfer(s) unto

PLEASE INSERT SOCIAL SECURITY OR OTHER
IDENTIFYING NUMBER OF ASSIGNEE

________________________________________________________________________________

________________________________________________________________________________

________________________________________________________________________________
                   Please print or typewrite name and address
                      including postal zip code of assignee

---------------------------------------
the within note and all rights thereunder, hereby
irrevocably constituting and appointing attorney to
transfer said note on the books of the Company, with
full power of substitution in the premises.
Dated:  _________________

                                  ----------------------------------------------
                                  NOTICE: The signature to this assignment must
                                  correspond with the name as written upon the
                                  face of the within instrument in every
                                  particular, without alteration or enlargement
                                  or any change whatever.

                                  Signature(s) must be guaranteed by a financial
                                  institution that is a member of the Securities
                                  Transfer Agents Medallion Program ("STAMP"),
                                  the Stock Exchange Medallion Program ("SEMP")
                                  or the New York Stock Exchange, Inc. Medallion
                                  Signature Program("MSP").

                                       D-6

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