Exhibit 21 AMOCO CORPORATION _________________ SUBSIDIARIES OF THE REGISTRANT AT December 31, 1995 Organized Under Company (1) Laws Of Amoco Canada Petroleum Company, 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 Corporation .. 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 Research Corporation ................. Delaware Amoco Oil Company ............................ Maryland Amoco Oil Holding Company .................. 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 Caspian Sea Petroleum Company ........ Delaware Amoco Caspian Sea Petroleum Limited ...... British Virgin Islands 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 Organized Under Company (1) Laws Of Amoco Eurasia Petroleum Company ............ Delaware Amoco Gas Company .......................... Delaware Amoco International Petroleum Company ...... Delaware Amoco Argentina Oil Company .............. Delaware 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 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 Coastwise Guaranty Company ............... Delaware TOC--Rocky Mountains Inc. .................. Delaware Amoco Properties Incorporated ................ 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 ATx Telecom Systems, Inc. .................... Delaware ATC Diagnostics, Inc. ........................ Delaware Amoco Solar Holding Company .................. Delaware Amoco/Enron Solar(2) ....................... Delaware AmProp Finance Company ......................... Indiana AmProp, Inc. ................................... Delaware Northern Resources Assurance Inc. .............. Illinois (1) Two hundred seventy-five subsidiaries and twenty-nine 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.