Exhibit 21 AMOCO CORPORATION SUBSIDIARIES OF THE REGISTRANT AT December 31, 1994 Organized Under Company (1) Laws of Amoco Canada Petroleum Company Ltd. . . . . . . . . . . . . . . Canada Amoco Canada Energy Ltd . . . . . . . . . . . . . . . . . . . Canada Amoco Canada Resources Ltd. . . . . . . . . . . . . . . . . . Canada Amoco Company . . . . . . . . . . . . . . . . . . . . . . . . . Delaware Amoco Chemical Company. . . . . . . . . . . . . . . . . . . . Delaware Amoco Chemical Holding Company. . . . . . . . . . . . . . . Delaware Amoco Chemical Belgium N.V. . . . . . . . . . . . . . . . Belgium Amoco Chemical Malaysia Holding Company . . . . . . . . . Delaware Amoco Chemicals Pty. Limited. . . . . . . . . . . . . . . Australia Amoco Fabrics and Fibers Company. . . . . . . . . . . . . Delaware Amoco Fabrics and Fibers Ltd. . . . . . . . . . . . . . . Canada Amoco Foam Products Company . . . . . . . . . . . . . . . Delaware Amoco International Finance Company . . . . . . . . . . . Delaware Amoco Chemical Asia Pacific Limited . . . . . . . . . . Hong Kong Amoco Olefins Corporation . . . . . . . . . . . . . . . . Delaware Amoco Polymers Inc. . . . . . . . . . . . . . . . . . . . Delaware Propex do Brasil Produtos Sinteticos Ltda. . . . . . . . . . . . . . . . . . . . . . . . . . Brazil China American Petrochemical Co., Ltd. (2). . . . . . . . . Taiwan Samsung Petrochemical Co., Ltd. (2) . . . . . . . . . . . . Korea Amoco Leasing Corporation . . . . . . . . . . . . . . . . . . Delaware Amoco Oil Company . . . . . . . . . . . . . . . . . . . . . . Maryland Amoco Oil Holding Company . . . . . . . . . . . . . . . . . Delaware Amoco Enterprises, Inc. . . . . . . . . . . . . . . . . . Delaware Amoco Sulfur Recovery Company . . . . . . . . . . . . . . Delaware Ecova Corporation . . . . . . . . . . . . . . . . . . . . Nevada Omega Oil Company . . . . . . . . . . . . . . . . . . . . Delaware Amoco Pipeline Company. . . . . . . . . . . . . . . . . . . . Maine Amoco Pipeline Holding Company. . . . . . . . . . . . . . . Delaware Amoco Production Company. . . . . . . . . . . . . . . . . . . Delaware Amoco Colombia Petroleum Company. . . . . . . . . . . . . . Delaware Amoco Egypt Gas Company . . . . . . . . . . . . . . . . . . Delaware Amoco Egypt Oil Company . . . . . . . . . . . . . . . . . . Delaware Gulf of Suez Petroleum Company (2). . . . . . . . . . . . Egypt Amoco Energy Trading Corporation. . . . . . . . . . . . . . Delaware Amoco Eurasia Petroleum Company . . . . . . . . . . . . . . Delaware Amoco Caspian Sea Petroleum Company . . . . . . . . . . . Delaware Amoco Gas Company . . . . . . . . . . . . . . . . . . . . . Delaware Amoco International Petroleum Company . . . . . . . . . . . Delaware Amoco Argentina Oil Company . . . . . . . . . . . . . . . Delaware Organized Under Company (1) Laws of Amoco Trinidad Oil Company. . . . . . . . . . . . . . . . Delaware Amoco Netherlands Petroleum Company . . . . . . . . . . . . Delaware Amoco Netherlands B.V. . . . . . . . . . . . . . . . . . Netherlands Amoco Nigeria Petroleum Company . . . . . . . . . . . . . . Delaware Amoco Norway Oil Company . . . . . . . . . . . . . . . . . Delaware Amoco Ob River Petroleum Company . . . . . . . . . . . . . Delaware Amoco Orient Petroleum Company. . . . . . . . . . . . . . . Delaware Amoco Rocmount Company. . . . . . . . . . . . . . . . . . . Delaware Amoco Sharjah LPG Company . . . . . . . . . . . . . . . . . Delaware Amoco Sharjah Oil Company . . . . . . . . . . . . . . . . . Delaware Amoco Supply and Trading Company. . . . . . . . . . . . . . Delaware Amoco (U.K.) Exploration Company. . . . . . . . . . . . . . Delaware Amoco Trinidad Power Resources Corporation. . . . . . . . . Delaware Coastwise Trading Company, Inc. . . . . . . . . . . . . . . Delaware TOC--Rocky Mountains Inc. . . . . . . . . . . . . . . . . . Delaware Amoco Properties Incorporated . . . . . . . . . . . . . . . . Delaware Amoco Research Corporation. . . . . . . . . . . . . . . . . . Delaware Amoco Chemical (Europe) S.A. . . . . . . . . . . . . . . . . . Delaware Amoco Chemical U.K. Limited . . . . . . . . . . . . . . . . . England Amoco Fabrics (U.K.) Limited. . . . . . . . . . . . . . . . England Amoco Holding GmbH. . . . . . . . . . . . . . . . . . . . . . Germany Amoco Deutschland GmbH. . . . . . . . . . . . . . . . . . . Germany Amoco Fabrics Europe B.V. . . . . . . . . . . . . . . . . . Netherlands Amoco Realty Company . . . . . . . . . . . . . . . . . . . . . Delaware Amoco Technology Company. . . . . . . . . . . . . . . . . . . . Delaware Solarex Corporation . . . . . . . . . . . . . . . . . . . . . Delaware AmProp Fiannce Company. . . . . . . . . . . . . . . . . . . . . Indiana AmProp, Inc . . . . . . . . . . . . . . . . . . . . . . . . . . Delaware (1) Two hundred sixty-one subsidiaries and twenty-eight 50% or less owned companies accounted for by the equity method are not named. Such subsidiaries and affiliate companies, considered in the aggregate, do not constitute a significant subsidiary. (2) Represents holdings between 10% and 50% inclusive.