<TABLE> <S> <C>
<ARTICLE> UT
<CIK> 0000073986
<NAME> OHIO POWER COMPANY
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> DEC-31-1999
<PERIOD-END> JUN-30-2000
<BOOK-VALUE> PER-BOOK
<TOTAL-NET-UTILITY-PLANT> 2,762,624
<OTHER-PROPERTY-AND-INVEST> 370,948
<TOTAL-CURRENT-ASSETS> 1,715,603
<TOTAL-DEFERRED-CHARGES> 65,565
<OTHER-ASSETS> 782,102
<TOTAL-ASSETS> 5,696,842
<COMMON> 321,201
<CAPITAL-SURPLUS-PAID-IN> 462,469
<RETAINED-EARNINGS> 615,834
<TOTAL-COMMON-STOCKHOLDERS-EQ> 1,399,504
8,850
16,683
<LONG-TERM-DEBT-NET> 1,127,612
<SHORT-TERM-NOTES> 0
<LONG-TERM-NOTES-PAYABLE> 0
<COMMERCIAL-PAPER-OBLIGATIONS> 0
<LONG-TERM-DEBT-CURRENT-PORT> 87,085
0
<CAPITAL-LEASE-OBLIGATIONS> 92,320
<LEASES-CURRENT> 34,419
<OTHER-ITEMS-CAPITAL-AND-LIAB> 2,930,369
<TOT-CAPITALIZATION-AND-LIAB> 5,696,842
<GROSS-OPERATING-REVENUE> 1,085,732
<INCOME-TAX-EXPENSE> 69,929
<OTHER-OPERATING-EXPENSES> 870,722
<TOTAL-OPERATING-EXPENSES> 940,651
<OPERATING-INCOME-LOSS> 145,081
<OTHER-INCOME-NET> 4,150
<INCOME-BEFORE-INTEREST-EXPEN> 149,231
<TOTAL-INTEREST-EXPENSE> 44,782
<NET-INCOME> 104,449
636
<EARNINGS-AVAILABLE-FOR-COMM> 103,813
<COMMON-STOCK-DIVIDENDS> 75,406
<TOTAL-INTEREST-ON-BONDS> 11,496
<CASH-FLOW-OPERATIONS> 316,366
<EPS-BASIC> 0<F1>
<EPS-DILUTED> 0<F1>
<FN>
<F1>
All common stock owned by parent company; no EPS required.
</FN>
</TABLE>
