EX-21 19 x21.txt EXHIBIT 21 Subsidiaries of American Electric Power Company, Inc. As of December 31, 2002 The voting stock of each company shown indented is owned by the company immediately above which is not indented to the same degree. Subsidiaries not indented are directly owned by American Electric Power Company, Inc.
Percentage of Voting Securities Location of Owned By Name of Company Incorporation Immediate Parent --------------- ------------- ---------------- American Electric Power Company, Inc. New York American Electric Power Service Corporation New York 100.0 AEP C&I Company, LLC Delaware 100.0 AEP Coal, Inc. Nevada 100.0 AEP Communications, Inc. Ohio 100.0 AEP Energy Services, Inc. Ohio 100.0 AEP Generating Company Ohio 100.0 AEP Desert Sky LP, LLC Delaware 100.0 AEP Desert Sky LP II, LLC Delaware 100.0 Golden Prairie Holding Company LLC Delaware 100.0 AEP Investments, Inc. Ohio 100.0 Mutual Energy L.L.C. Delaware 100.0 AEP Power Marketing, Inc. Ohio 100.0 AEP T&D Services, LLC Delaware 100.0 AEP Pro Serv, Inc. Ohio 100.0 AEP Retail Energy LLC Delaware 100.0 AEP Texas POLR, LLC Delaware 100.0 AEP Resources, Inc. Ohio 100.0 Appalachian Power Company Virginia 98.7 (a) Cedar Coal Co. West Virginia 100.0 Central Appalachian Coal Company West Virginia 100.0 Central Coal Company West Virginia 50.0 (b) Southern Appalachian Coal Company West Virginia 100.0 Columbus Southern Power Company Ohio 100.0 Colomet, Inc. Ohio 100.0 Conesville Coal Preparation Company Ohio 100.0 Simco Inc. Ohio 100.0 Ohio Valley Electric Corporation Ohio 4.3 (e) Indiana-Kentucky Electric Corporation Indiana 100.0 Franklin Real Estate Company Pennsylvania 100.0 Indiana Michigan Power Company Indiana 100.0 Blackhawk Coal Company Utah 100.0 Price River Coal Company, Inc. Indiana 100.0 Kentucky Power Company Kentucky 100.0 Kingsport Power Company Virginia 100.0 Ohio Power Company Ohio 99.2 (c) Cardinal Operating Company Ohio 50.0 (d) Central Coal Company West Virginia 50.0 (b) Ohio Valley Electric Corporation Ohio 39.9 (e) Indiana-Kentucky Electric Corporation Indiana 100.0 Wheeling Power Company West Virginia 100.0 Central and South West Corporation Delaware 100.0 AEP Texas Central Company Texas 100.0 (f) CPL Capital I Delaware 100.0 (g) CPL Transition Funding LLC (DE) Delaware 100.0 (g) Public Service Company of Oklahoma Oklahoma 100.0 PSO Capital I Delaware 100.0 Southwestern Electric Power Company Delaware 100.0 The Arklahoma Corporation Arkansas 47.6 SWEPCo Capital I Delaware 100.0 Southwestern Arkansas Utilities Corporation Arkansas 100.0 Dolet Hills Lignite Company, LLC Delaware 100.0 AEP Texas North Company Texas 100.0 (h) Notes: a. 13,499,500 shares of Common Stock, all owned by parent, have one vote each and 177,899 shares of Preferred Stock, all owned by the public, have one vote each. b. Owned 50% by Appalachian Power Company and 50% by Ohio Power Company. c. 27,952,473 shares of Common Stock, all owned by parent, have one vote each and 238,977 shares of Preferred Stock, all owned by the public, have one vote each. d. Ohio Power Company owns 50% of the stock; the other 50% is owned by a corporation not affiliated with American Electric Power Company, Inc. e. American Electric Power Company, Inc. and Columbus Southern Power Company own 39.9% and 4.3% of the stock, respectively, and the remaining 55.8% is owned by unaffiliated companies. f. Central Power and Light Company changed its name to AEP Texas Central Company. g. The names of CPL Capital I and CPL Transition Funding LLC (DE)were unchanged at December 31, 2002. AEP intends to change the names of these companies in 2003. h. West Texas Utilities Company changed its name to AEP Texas North Company.