<TABLE> <S> <C>
<ARTICLE> UT
<CIK>0000092487
<NAME> SOUTHWESTERN ELECTRIC POWER COMPANY
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> 9-MOS
<FISCAL-YEAR-END> DEC-31-1999
<PERIOD-END> SEP-30-2000
<BOOK-VALUE> PER-BOOK
<TOTAL-NET-UTILITY-PLANT> 1,860,417
<OTHER-PROPERTY-AND-INVEST> 73,708
<TOTAL-CURRENT-ASSETS> 298,701
<TOTAL-DEFERRED-CHARGES> 20,333
<OTHER-ASSETS> 54,081
<TOTAL-ASSETS> 2,307,240
<COMMON> 135,660
<CAPITAL-SURPLUS-PAID-IN> 245,000
<RETAINED-EARNINGS> 310,860
<TOTAL-COMMON-STOCKHOLDERS-EQ> 691,520
0
4,704
<LONG-TERM-DEBT-NET> 755,527
<SHORT-TERM-NOTES> 26,947
<LONG-TERM-NOTES-PAYABLE> 0
<COMMERCIAL-PAPER-OBLIGATIONS> 0
<LONG-TERM-DEBT-CURRENT-PORT> 595
0
<CAPITAL-LEASE-OBLIGATIONS> 0
<LEASES-CURRENT> 0
<OTHER-ITEMS-CAPITAL-AND-LIAB> 827,947
<TOT-CAPITALIZATION-AND-LIAB> 2,307,240
<GROSS-OPERATING-REVENUE> 857,607
<INCOME-TAX-EXPENSE> 33,077
<OTHER-OPERATING-EXPENSES> 707,191
<TOTAL-OPERATING-EXPENSES> 740,268
<OPERATING-INCOME-LOSS> 117,339
<OTHER-INCOME-NET> 1,453
<INCOME-BEFORE-INTEREST-EXPEN> 118,792
<TOTAL-INTEREST-EXPENSE> 44,806
<NET-INCOME> 73,986
172
<EARNINGS-AVAILABLE-FOR-COMM> 73,814
<COMMON-STOCK-DIVIDENDS> 46,500
<TOTAL-INTEREST-ON-BONDS> 26,353
<CASH-FLOW-OPERATIONS> 149,055
<EPS-BASIC> 0.00<F1>
<EPS-DILUTED> 0.00<F1>
<FN>
<F1> ALL COMMON STOCK OWNED BY PARENT COMPANY; NO EPS REQUIRED.
</FN>
</TABLE>