<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM EDISON
MISSION ENERGY AND SUBSIDIARIES FINANCIAL STATEMENTS AND IS QUALIFIED IN ITS
ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> DEC-31-2000
<PERIOD-START> APR-01-2000
<PERIOD-END> JUN-30-2000
<CASH> 650,775
<SECURITIES> 0
<RECEIVABLES> 375,623
<ALLOWANCES> 1,126
<INVENTORY> 324,407
<CURRENT-ASSETS> 1,386,893
<PP&E> 12,196,003
<DEPRECIATION> 569,905
<TOTAL-ASSETS> 15,531,826
<CURRENT-LIABILITIES> 2,556,890
<BONDS> 6,942,519
337,480
118,054
<COMMON> 64,130
<OTHER-SE> 2,790,887
<TOTAL-LIABILITY-AND-EQUITY> 15,531,826
<SALES> 0
<TOTAL-REVENUES> 1,398,980
<CGS> 0
<TOTAL-COSTS> 930,837
<OTHER-EXPENSES> 0
<LOSS-PROVISION> 0
<INTEREST-EXPENSE> (370,507)
<INCOME-PRETAX> (76,457)
<INCOME-TAX> (27,772)
<INCOME-CONTINUING> (48,685)
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 17,690
<NET-INCOME> (30,995)
<EPS-BASIC> 0
<EPS-DILUTED> 0
</TABLE>