Document:

Tax Allocation Agreement - MEH

                                             TAX ALLOCATION AGREEMENT

         This Agreement is entered into as of July 2, 2001, by and between Mission Energy Holding Company, a
Delaware corporation ("MEH"), and its wholly-owned subsidiary, Edison Mission Energy, a Delaware corporation
("EME").

                                                     RECITALS

A.       The Mission Group, a California corporation ("Mission Group"), has entered into a tax allocation
         agreement with its wholly-owned first-tier subsidiaries, including MEH (the "Group Agreement"),
         providing for an allocation between Mission Group and its wholly-owned first-tier subsidiaries of tax
         benefits and tax liabilities reflected in or resulting from the filing of combined or consolidated
         income or franchise tax returns.

B.       Pursuant to the Group Agreement, the first-tier subsidiaries of Mission Group make and receive payments
         from time to time reflecting tax liabilities and benefits realized by the corporate group arising from
         net operating income and losses, net capital gains and losses, and credits against tax, attributable to
         such first-tier subsidiaries and their subsidiaries.

C.       The parties desire to further provide for the payment by MEH to EME or from EME to MEH, as the case may
         be, of the Separate Tax Benefits or Separate Tax Liabilities of EME and each of the subsidiaries which
         is owned directly or indirectly by EME ("Lower Tier Subsidiaries"), calculated in accordance with the
         Master Agreement (as such term is defined in the Group Agreement).

D.       Terms used and not defined herein have the meanings given them in the Master Agreement or the Group
         Agreement.

                                                     AGREEMENT

         NOW, THEREFORE, in consideration of the premises and of the mutual covenants herein contained and for
other good and valuable consideration, the receipt of which is hereby acknowledged, the parties hereto agree as
follows:

1.       Tax Liability and Benefit Payments.  For each taxable period to which the Master Agreement is
         applicable, MEH shall utilize the calculation made by Edison International under the Master Agreement of
         the amount of the Separate Tax Liability or Separate Tax Benefit (as such terms are defined in the
         Master Agreement) of EME and its Lower Tier Subsidiaries.  On each date that any payment under the
         Master Agreement is to be made or received by MEH (or would have been made or received if an amount had
         been owed or receivable), EME shall pay to MEH the amount by which (a) the aggregate of the Separate Tax
         Liability of EME, if it has a Separate Tax Liability, and the Separate Tax

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         Liabilities of each of its Lower Tier Subsidiaries which has a Separate Tax Liability, exceeds (b) the aggregate
         of the Separate Tax Benefit of EME, if it has a Separate Tax  Benefit, and the Separate Tax Benefits of
         each of its Lower Tier Subsidiaries which has a Separate Tax Benefit.  If, for any such taxable period,
         (a) the aggregate of the Separate Tax Benefit of EME, if it has a Separate Tax Benefit, and the Separate
         Tax Benefits of each of its Lower Tier Subsidiaries which has a Separate Tax Benefit exceeds (b) the
         aggregate of the Separate Tax Liability of EME, if it has a Separate Tax Liability, and the Separate Tax
         Liabilities of each of its Lower Tier Subsidiaries which has a Separate Tax Liability, MEH shall pay to
         EME an amount equal to such excess.

         All payments by either of MEH or EME shall be made without setoff, counterclaim or deduction of any kind
         whatsoever, and whether or not payment is due or has been received from Edison International under the
         Master Agreement or from Mission Group under the Group Agreement.  EME and its subsidiaries shall
         provide to Edison International, Mission Group, and MEH, on a monthly basis, or upon demand as
         necessary, all relevant information necessary to calculate federal and state tax liabilities and
         payments.

2.       Reconciliation of Tax Liability.  Upon receipt of each notice provided for in Section 2 of the Group
         Agreement, relating to reconciliation of quarterly estimated tax payments against the Consolidated
         Returns, MEH shall forthwith determine and notify EME of the effect, if any, of such reconciliation on
         the payments made to or received from EME.  EME shall pay to MEH any additional tax liability due, or
         receive payment from MEH for any overpayment, on the same date that MEH makes or receives any payments
         under Section 2 of the Group Agreement.

3.       Adjustments to Tax Liability.  If any adjustments are made to the income, gains, losses, deductions or
         credits pertaining to EME or any of its Lower Tier Subsidiaries, as reported in a Consolidated Return
         filed by Edison International, by reason of the filing of an amended return or claim for refund, or
         arising out of an audit of such Consolidated Return by the Internal Revenue Service or applicable state
         agency, then the Separate Tax Liability or the Separate Tax Benefit of EME or such Lower Tier Subsidiary
         shall be redetermined to give effect to any such adjustment as if it had been made as part of the filed
         Consolidated Return.  If any interest or penalty is to be paid or interest received as a result of a tax
         deficiency or refund, such interest or penalty shall be allocated in accordance with the item(s) giving
         rise to such interest or penalty.  MEH agrees to exercise its contest rights under the Group Agreement
         on behalf of EME and the reasonable costs so incurred by MEH shall be allocated upon such basis as is
         mutually agreed to by MEH and EME in advance of such contest.  If, as a result of such redetermination,
         any amounts due to MEH or EME under this Agreement, as the case may be, shall exceed the amounts
         previously paid to such party, then payment of such excess shall be made by the appropriate party, as
         the case may be, on the earliest date on which (i) Edison

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         International shall pay, or be deemed to have paid, any additional taxes resulting from any such adjustment;
         (ii) Edison International shall receive, or be deemed to have received, a refund of taxes resulting from
         any such adjustment; or (iii) such adjustment shall become final.  Any payment between MEH and EME
         pursuant to (i) or (ii) above, however, shall not become final until the adjustment with respect to
         which the redetermination was made becomes final.  For purposes of this Section 3, an adjustment shall
         become final at the time of the expiration of the applicable statute of limitations with respect to the
         taxable period to which such adjustment relates, or, if such adjustment was made pursuant to a decision
         of a court, at the time such decision shall become final.

4.       Carryovers and Carrybacks.  If, for any taxable period ending on or after December 31, 1986, EME or any
         of its Lower Tier Subsidiaries has Net Losses which, under the applicable tax codes may be carried over
         or carried back to any taxable period in which Edison International filed, or reasonably anticipates
         that it will file, a Consolidated Return which includes EME, and such Net Losses give rise to a
         reduction in the tax liability of the Consolidated Group that would not have arisen if EME or such Lower
         Tier Subsidiary were excluded from the Consolidated Group for any such taxable period, MEH shall pay to
         EME an amount equal to the actual reduction in the tax liability of the Consolidated Group for the
         taxable period to which such Net Losses may be carried, which is attributable to such carryover or
         carryback.  Payment of such amount shall be made by MEH (i) in the case of a carryover, on or before the
         later of (a) the 15th day of the third month after the end of the taxable period with respect to which
         the tax liability of the Consolidated Group was reduced and (b) the date on which such reduction in tax
         liability is finally determined, which shall be not later than 90 days after the Consolidated Return for
         such taxable period is filed; and (ii) in the case of a carryback, when the Consolidated Group shall
         receive, or be deemed to receive, the refund attributable to such carryback.

5.       Priority of Payments.  Notwithstanding anything to the contrary in this Agreement, all payments from MEH
         to EME for Separate Tax Benefits of EME and its Lower Tier Subsidiaries shall be subject to (a) the
         provisions of the Master Agreement establishing a priority for payments of Separate Tax Benefits to
         Southern California Edison Company and its subsidiaries and (b) the provisions of the Group Agreement
         establishing a priority for payments of Separate Tax Benefits to Edison Capital and its subsidiaries.
         Should any question arise as to the proper calculation of the Separate Tax Benefits or Separate Tax
         Liabilities of EME and its Lower Tier Subsidiaries, the determination of such question by Edison
         International shall be final.

6.       Termination.  MEH and EME recognize that the Group Agreement may be terminated or modified by Mission
         Group in accordance with its terms.  Should the Group Agreement be so terminated or modified, this
         Agreement shall be terminated or deemed to be similarly modified, as the case may be, as of the

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         same effective date and to the same extent as the termination or modification of the Group Agreement.

7.       Successors and Beneficiaries.  This Agreement may not be assigned, pledged, transferred or hypothecated

         by MEH or EME without the express, mutual, written consent of MEH and EME, and the express, written
         consent of Mission Group.

8.       Counterparts.  This Agreement may be executed in one or more counterparts, each of which shall be an
         original and all of which taken together shall constitute one and the same agreement.

9.       Governing Law.  This Agreement shall be governed by and construed in accordance with the laws of the
         State of California.

         IN WITNESS WHEREOF, the parties have executed this Agreement by their respective officers thereunto duly
authorized as of the date first above written

                                                             MISSION ENERGY HOLDING COMPANY

                                                             By:  /s/ Theodore F. Craver, Jr.

                                                             EDISON MISSION ENERGY

                                                             By:  /s/ Keven M. SmithAdministrative Agreement re Tax Allocation Payments

                                          ADMINISTRATIVE AGREEMENT RE TAX ALLOCATION PAYMENTS

         This Agreement is entered into as of July 2, 2001, among Edison International, Southern California Edison Company, The
Mission Group, Edison Capital, Mission Energy Holding Company, Edison Mission Energy, Edison O&M Services, Edison Enterprises, and
Mission Land Company (the parties other than EIX are referred to herein collectively as the "Subsidiary Parties" and each
individually as a "Subsidiary Party").

                                                               RECITALS

A.       Edison International has entered into an Amended and Restated Agreement for the Allocation of Income Tax Liabilities and
         Benefits, dated as of September 10, 1996 (the "Master Agreement"), with its first-tier subsidiaries, Southern California
         Edison Company and The Mission Group, providing for an allocation among the parties of tax benefits and tax liabilities
         reflected in or resulting from the filing of consolidated or combined income or franchise tax returns.  The Master Agreement
         provides for Edison International to calculate the Separate Tax Liabilities and Separate Tax Benefits (as such terms are
         defined in the Master Agreement) of Southern California Edison Company and The Mission Group and of each of their respective
         directly or indirectly owned subsidiaries, and to make to or receive from Southern California Edison Company and The Mission
         Group, respectively, net payments with respect to the aggregate Separate Tax Benefit or Separate Tax Liability of each such
         company and all its respective subsidiaries.

B.       The Mission Group has entered into a related Amended and Restated Tax Allocation Agreement, dated as of September 10, 1996,
         as supplemented by addenda thereto (the "Group Agreement"), with its first-tier subsidiaries, Edison Capital, Mission Energy
         Holding Company, Edison O&M Services, Edison Enterprises, and Mission Land Company.  The Group Agreement provides for The
         Mission Group to use the calculations made by Edison International under the Master Agreement and to make to or receive from
         Edison Capital, Mission Energy Holding Company, Edison O&M Services, Edison Enterprises, and Mission Land Company,
         respectively, net payments with respect to the aggregate Separate Tax Benefit or Separate

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         Tax Liability of each such company and all its respective subsidiaries.

C.       Mission Energy Holding Company has entered into a related Tax Allocation Agreement, dated as of July 2, 2001 (the "Mission
         Energy Agreement"), with its first-tier subsidiary, Edison Mission Energy.  The Mission Energy Agreement provides for
         Mission Energy Holding Company to use the calculations made by Edison International under the Master Agreement and to make
         to or receive from Edison Mission Energy net payments with respect to the aggregate Separate

         Tax Benefit or Separate Tax Liability of Edison Mission Energy and all its subsidiaries.

D.       To promote efficient administration of payments under the Master Agreement, Group Agreement, and Mission Energy Agreement
         (referred to collectively herein, together with any amendments, supplements, addenda, or successor agreements, as the "Tax
         Allocation Agreements"), Edison International and the Subsidiary Parties desire to provide for payments under the Tax
         Allocation Agreements to be made directly between Edison International and each of the Subsidiary Parties as set forth
         herein.

                                                               AGREEMENT

         NOW, THEREFORE, in consideration of the premises and of the mutual covenants herein contained and for other good and
valuable consideration, the receipt of which is hereby acknowledged, the parties hereto agree as follows:

1.       Tax Liability and Benefit Payments.  On each date that any payments under the Tax Allocation Agreements are to be made or
         received by Edison International or the Subsidiary Parties (or would have been made or received if an amount had been owed
         or receivable), payments shall be made as follows:

         (a) Edison International shall pay to Southern California Edison Company or Southern California Edison Company shall pay to
         Edison International, as the case may be, an amount equal to the aggregate net amount of the Separate Tax Benefits and
         Separate Tax Liabilities of Southern California Edison Company and its subsidiaries;

         (b) Edison International shall pay to The Mission Group or The Mission Group shall pay to Edison International, as the case
         may be, an amount equal to the aggregate net amount of the Separate Tax Benefits and Separate Tax Liabilities of The Mission
         Group and its subsidiaries (other than Mission Energy Holding Company, Edison Capital, Edison O&M Services, Edison
         Enterprises, Mission Land Company, and their subsidiaries);

         (c) Edison International shall pay to Edison Capital or Edison Capital shall pay to Edison International, as the case may
         be, an amount equal to the aggregate net amount of the Separate Tax Benefits and Separate Tax Liabilities of Edison Capital
         and its subsidiaries;

         (d) Edison International shall pay to Mission Energy Holding Company or Mission Energy Holding Company shall pay to Edison
         International, as the case may be, an amount equal to the aggregate net amount of the Separate Tax Benefits and Separate Tax
         Liabilities of Mission Energy Holding Company and its subsidiaries (other than Edison Mission Energy and its subsidiaries);

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         (e) Edison International shall pay to Edison Mission Energy or Edison Mission Energy shall pay to Edison International, as
         the case may be, an amount equal to the aggregate net amount of the Separate Tax Benefits and Separate Tax Liabilities of
         Edison Mission Energy and its subsidiaries;

         (f) Edison International shall pay to Edison O&M Services or Edison O&M Services shall pay to Edison International, as the
         case may be, an amount equal to the aggregate net amount of the Separate Tax Benefits and Separate Tax Liabilities of Edison
         O&M Services and its subsidiaries

         (g) Edison International shall pay to Edison Enterprises or Edison Enterprises shall pay to Edison International, as the
         case may be, an amount equal to the aggregate net amount of the Separate Tax Benefits and Separate Tax Liabilities of Edison
         Enterprises and its subsidiaries; and

         (h) Edison International shall pay to Mission Land Company or Mission Land Company shall pay to Edison International, as the
         case may be, an amount equal to the aggregate net amount of the Separate Tax Benefits and Separate Tax Liabilities of
         Mission Land Company and its subsidiaries.

2.       Additional Subsidiaries.  Any Subsidiary Party may request Edison International to make payments for Separate Tax Benefits,
         if any, directly to any subsidiary of that Subsidiary Party.  In such case, that Subsidiary Party shall cause that
         subsidiary to make payments for Separate Tax Liabilities, if any, directly to Edison International.

3.       Effect on Tax Allocation Agreements.  This Agreement establishes arrangements for the efficient administration of payments
         under the Tax Allocation Agreements.  Those payment arrangements and this Agreement shall not be construed to modify the
         rights and obligations of the parties under the Tax Allocation Agreements, except to the extent that any obligation to make
         a payment under any of the Tax Allocation Agreements is satisfied by a payment made in accordance with this Agreement.
         Notwithstanding anything to the contrary in this Agreement, all payments shall be subject to (a) the provisions of the
         Master Agreement establishing a priority for payments of Separate Tax Benefits to Southern California Edison Company and its
         subsidiaries and (b) the provisions of the Group Agreement establishing a priority for payments of Separate Tax Benefits to
         Edison Capital and its subsidiaries.  Should any question arise as to the proper calculation or payment of the Separate Tax
         Benefits or Separate Tax Liabilities of Edison International or any of the Subsidiary Parties, the determination of such
         question by Edison International shall be final.

4.       Termination.  This Agreement may be terminated at any time by Edison International in its sole discretion.  Any termination
         shall not by itself effect a termination of any of the Tax Allocation Agreements.

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5.       Successors and Beneficiaries.  This Agreement may not be assigned, pledged, transferred or hypothecated by any of the
         Subsidiary Parties without the express written consent of Edison International.

6.       Counterparts.  This Agreement may be executed in one or more counterparts, each of which shall be an original and all of
         which taken together shall constitute one and the same agreement.

7.       Governing Law.  This Agreement shall be governed by and construed in accordance with the laws of the State of California.

         IN WITNESS WHEREOF, the parties have executed this Agreement by their respective officers thereunto duly authorized as of
the date first above written.

EDISON INTERNATIONAL                                         SOUTHERN CALIFORNIA EDISON COMPANY

                                                             By:  /s/  W. James Scilacci
By:  /s/ Theodore F. Craver, Jr.

THE MISSION GROUP                                            EDISON CAPITAL

By:  /s/ Theodore F. Craver, Jr.                             By:  /s/ Thomas R. McDaniel

MISSION ENERGY HOLDING COMPANY                               EDISON MISSION ENERGY

By:  /s/ Theodore F. Craver, Jr.                             By:  /s/ Kevin M. Smith

EDISON O&M SERVICES                                          EDISON ENTERPRISES

By:  /s/ Wesley C. Moody                                     By:  /s/  Theodore F. Craver, Jr.

MISSION LAND COMPANY

By:  /s/ Thomas R. McDaniel

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