EXHIBIT 12.3 Southwestern Electric Power Company Ratio of Earnings to Fixed Charges For Years Ended December 31, 1996 1995 1994 1993(2) 1992 --------- --------- --------- -------- -------- (thousands, except ratios) Operating income $138,083 $162,776 $145,922 $118,057 $145,727 Adjustments: Income taxes 32,931 41,131 20,623 37,108 31,478 Provision for deferred income taxes 2,849 6,287 22,248 (648) 10,258 Deferred investment tax credits (4,730) (4,786) (4,278) (5,193) (6,864) Reserve for utility plant costs, (21,815) -- -- -- -- net of tax Other income and deductions 312 178 4,656 3,658 537 Allowance for borrowed and equity funds used during construction 2,423 9,334 6,097 2,580 182 Interest portion of financing leases 1,514 1,896 2,562 2,534 2,783 ========= ========= ========= ========= ========= Earnings $151,567 $216,816 $197,830 $158,096 $184,101 ========= ========= ========= ========= ========= Fixed charges: Interest on long-term debt $44,066 $44,468 $43,395 $40,958 $47,490 Interest on short-term debt and other 8,381 10,706 7,568 4,866 4,073 Interest portion of financing leases 1,514 1,896 2,562 2,534 2,783 ========= ========= ========= ========= ========= Fixed charges $53,961 $57,070 $53,525 $48,358 $54,346 ========= ========= ========= ========= ========= Ratio of earnings to fixed charges 2.81 (1) 3.80 3.70 3.27 (3) 3.39 (1) Earnings in 1996 reflect a $21.8 million one-time charge, net of tax, associated with certain investments for plant sites, engineering studies and lignite reserves. (2) Earnings in 1993 were significantly affected by restructuring charges, the $3 million cumulative effect of changes in accounting principles and the establishment of reserves for fuel properties. (3) The ratio of earnings to fixed charges for 1993 was calculated before cumulative effect of change in accounting principles.