EXHIBIT (21) SUBSIDIARIES OF THE COMPANY PacifiCorp Group Holdings Company, a wholly-owned subsidiary of the Company and a Delaware corporation, has the following subsidiaries: APPROXIMATE STATE OR PERCENTAGE JURISDICTION OF OF VOTING INCORPORATION SECURITIES OR NAME OF SUBSIDIARY OWNED ORGANIZATION - ----------------------------------------------------------------------------------- ------------ --------------- PACE GROUP, Inc.................................................................... 100% Oregon PacifiCorp Energy, Inc............................................................. 100% Oregon PacifiCorp Financial Services, Inc................................................. 100% Oregon Pacific Harbor Capital, Inc...................................................... 100% Delaware PacifiCorp Credit, Inc........................................................... 100% Oregon PacifiCorp International Group Holdings Company.................................... 100% Oregon Pan Pacific Global Corporation................................................... 100% Oregon PacifiCorp Australia, LLC...................................................... 80%* Oregon PacifiCorp Australia Holdings Pty. Ltd....................................... 100% Australia Powercor Australia Limited................................................. 100% Australia Hazelwood Australia, Inc..................................................... 100%** Oregon PacifiCorp Kentucky Energy Company................................................. 100% Oregon PacifiCorp Power Marketing, Inc.................................................... 100% Oregon PacifiCorp Trans, Inc.............................................................. 100% Oregon TPC Corporation.................................................................... 100% Delaware - ------------------------ * Remaining 20% owned by another wholly owned subsidiary of PacifiCorp International Group Holdings Company. ** Owns 19.9% interest in Hazelwood Power Partnership indirectly through two wholly owned subsidiaries. The Company also has the following subsidiaries: APPROXIMATE STATE OR PERCENTAGE JURISDICTION OF OF VOTING INCORPORATION SECURITIES OR NAME OF SUBSIDIARY OWNED ORGANIZATION - ----------------------------------------------------------------------------------- ------------ --------------- Centralia Mining Company........................................................... 100% Washington Energy West Mining Company......................................................... 100% Utah Glenrock Coal Company.............................................................. 100% Wyoming Interwest Mining Company........................................................... 100% Oregon Pacific Mineral, Inc............................................................... 100% Wyoming Bridger Coal Company, a joint venture............................................ 66.67% Wyoming S-3