<TABLE> <S> <C>
<ARTICLE> UT
<LEGEND>
This schedule contains summary financial information extracted from the
related Form 10-Q financial statements for FirstEnergy Corp. and is
qualified in its entirety by reference to such financial statements.
(Amounts in 1,000's, except earnings per share.)
</LEGEND>
<CIK> 0001031296
<NAME> FIRSTENERGY CORP.
<MULTIPLIER> 1,000
<CURRENCY> U.S. DOLLARS
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> DEC-31-2000
<PERIOD-END> JUN-30-2000
<EXCHANGE-RATE> 1
<BOOK-VALUE> PER-BOOK
<TOTAL-NET-UTILITY-PLANT> 7,444,308
<OTHER-PROPERTY-AND-INVEST> 2,709,219
<TOTAL-CURRENT-ASSETS> 1,339,270
<TOTAL-DEFERRED-CHARGES> 6,608,482
<OTHER-ASSETS> 0
<TOTAL-ASSETS> 18,101,279
<COMMON> 22,923
<CAPITAL-SURPLUS-PAID-IN> 3,533,237
<RETAINED-EARNINGS> 1,052,245
<TOTAL-COMMON-STOCKHOLDERS-EQ> 4,608,405
244,356
648,395
<LONG-TERM-DEBT-NET> 5,965,925
<SHORT-TERM-NOTES> 304,897
<LONG-TERM-NOTES-PAYABLE> 0
<COMMERCIAL-PAPER-OBLIGATIONS> 159,970
<LONG-TERM-DEBT-CURRENT-PORT> 555,385
35,466
<CAPITAL-LEASE-OBLIGATIONS> 0
<LEASES-CURRENT> 52,831
<OTHER-ITEMS-CAPITAL-AND-LIAB> 5,525,649
<TOT-CAPITALIZATION-AND-LIAB> 18,101,279
<GROSS-OPERATING-REVENUE> 3,310,034
<INCOME-TAX-EXPENSE> 193,041
<OTHER-OPERATING-EXPENSES> 2,572,098
<TOTAL-OPERATING-EXPENSES> 2,765,139
<OPERATING-INCOME-LOSS> 544,895
<OTHER-INCOME-NET> 0
<INCOME-BEFORE-INTEREST-EXPEN> 544,895
<TOTAL-INTEREST-EXPENSE> 269,373
<NET-INCOME> 275,522
0
<EARNINGS-AVAILABLE-FOR-COMM> 0
<COMMON-STOCK-DIVIDENDS> 168,518
<TOTAL-INTEREST-ON-BONDS> 464,264
<CASH-FLOW-OPERATIONS> 614,008
<EPS-BASIC> 1.23
<EPS-DILUTED> 1.23
</TABLE>
