<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

                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1999
<PERIOD-END>                               JUN-30-1999
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<TOTAL-ASSETS>                              18,383,184
<COMMON>                                        23,449
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<RETAINED-EARNINGS>                            809,017
<TOTAL-COMMON-STOCKHOLDERS-EQ>               4,473,237
<PREFERRED-MANDATORY>                          280,996
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