Exhibit 21 MOBIL CORPORATION Subsidiaries of the Registrant Percentage of Voting Securities Owned by Organized Immediate Level under Laws of Parent - - - - ----- ------------- ---------- 1 Mobil Corporation ........................... Delaware Major Subsidiaries as of December 31, 1995: 2 Mobil Administrative Services Company Inc. .. Delaware 100.00 2 Mobil Exploration & Producing U.S. Inc. ..... Delaware 100.00 2 Mobil Exploration and Producing North America Inc. .............................. Nevada 100.00 3 Mobil Investments Canada Inc. ............. Delaware 34.69* 4 Mobil Oil Canada, Ltd. .................. Canada 100.00 3 Mobil Oil Indonesia Inc. .................. Delaware 100.00 2 Mobil International Finance Corporation ..... Delaware 100.00 3 Mobil Investments Inc. .................... Delaware 100.00 2 Mobil Land Development Corporation .......... Delaware 100.00 2 Mobil Natural Gas Inc. ...................... Delaware 100.00 2 Mobil International Petroleum Corporation ... Delaware 100.00 3 Mobil de Colombia S.A. .................... Colombia 80.07 3 General Petroleum Company, Inc. ........... New York 100.00 4 Mobil Oil do Brazil (Industria e Comercio) Ltda. ....................... Brazil 10.00* 4 Mobil Oil Egypt (S.A.E.) ................ Egypt .36* 3 Mobil Chemical International Ltd. ......... Delaware 100.00 3 Mobil Exploration Norway Inc. ............. Delaware 100.00 3 Mobil Oil Abu Dhabi Inc. .................. Delaware 100.00 3 Mobil Oil Aktiengesellschaft .............. Germany 10.00* 4 Mobil Erdgas-Erdoel GMBH ................ Germany 100.00 4 Mobil Marketing Und Raffinerie GMBH ..... Germany 100.00 5 Mobil Beteiligungs-und Vertriebsgesellschaft MBH ........... Germany 100.00 3 Mobil Oil Cameroun ........................ Cameroon 100.00 3 Mobil Oil Company de Colombia ............. Delaware 100.00 4 Mobil de Colombia S.A. .................. Colombia .06 3 Mobil Oil Cote d'Ivoire ................... Ivory Coast 100.00 3 Mobil Oil do Brazil (Industria e Comercio) Ltda. ......................... Brazil 90.00* 3 Mobil Oil East Africa Limited ............. Delaware 100.00 3 Mobil Oil Egypt (S.A.E.) .................. Egypt 99.28* 3 Mobil Oil Francaise ....................... France 99.98 4 Mobil Oil Maroc ......................... Morocco 12.45* 3 Mobil Oil Malaysia Sendirian Berhad ....... Malaysia 100.00 3 Mobil Oil Singapore Pte. Ltd. ............. Singapore 100.00 3 Mobil Petroleum Company Inc. .............. Delaware 100.00 (Level indicates the parent/subsidiary hierarchical relationship.) (Asterisk indicates 100% ownership held by two or more Mobil subsidiaries.) Mobil - 27 - Exhibit 21 MOBIL CORPORATION Subsidiaries of the Registrant Percentage of Voting Securities Owned by Organized Immediate Level under Laws of Parent - - - - ----- ------------- --------- 1 Mobil Corporation (continued) 2 Mobil International Petroleum Corporation (continued) 3 Mobil Petroleum Company Inc. (continued) 4 Mobil Australia Finance Company Inc. .... Delaware 100.00 4 Mobil de Colombia S.A. .................. Colombia 16.28 4 Mobil Europe Inc. ....................... Delaware 100.00 4 Mobil Holdings (U.K.) Limited ........... Delaware 100.00 5 Mobil Holdings (Europe and Africa) Limited ............................. Delaware 100.00 6 Mobil Oil Portuguesa, LDA. .......... Portugal 99.98* 5 Mobil Holdings Limited ................ United Kingdom 99.93 6 Mobil Oil Company Limited ........... United Kingdom 100.00 7 Vacuum Oil Company Limited ........ United Kingdom 100.00 6 Mobil Trading and Supply Limited .... United Kingdom 100.00 5 Mobil North Sea Limited ............... Delaware 100.00 5 Mobil Oil Hellas A.E. ................. Greece .03* 5 Superior Oil (U.K.) Limited ........... United Kingdom 99.90* 4 Mobil Holdings Benelux Inc. ............. Delaware 100.00 5 Mobil Oil B.V. ........................ The Netherlands 100.00 6 Mobil Oil, S.A. ..................... Spain 100.00 5 Mobil Oil Hellas A.E. ................. Greece 99.97* 4 Mobil Marine Transportation Limited ..... Canada 100.00 5 Mobil Shipping and Transportation Company ............................. Liberia 100.00 4 Mobil Oil (Switzerland) ................. Switzerland 100.00 5 Benoil SA ............................. Switzerland 100.00 4 Mobil Oil Aktiengesellschaft ............ Germany 90.00* 4 Mobil Oil Australia Limited ............. Australia 100.00 5 Vacuum Oil Company Proprietary Limited ............................. Australia 100.00 6 Mobil Refining Australia Pty LTD. ... Australia 100.00 4 Mobil Oil Austria Aktiengesellschaft .... Austria 100.00 4 Mobil Oil Egypt (S.A.E.) ................ Egypt .36* 4 Mobil Oil Hong Kong Limited ............. Hong Kong 99.90 4 Mobil Oil Kazakhstan Inc. ............... Delaware 100.00 4 Mobil Oil Maroc ......................... Morocco 87.55* 4 Mobil Oil New Zealand Limited ........... New Zealand 100.00 4 Mobil Oil Qatar Inc. .................... Delaware 100.00 4 Mobil Oil Turk A.S. ..................... Turkey 100.00 4 Mobil Producing Netherlands Inc. ........ Delaware 100.00 4 Mobil Saudi Arabia Inc. ................. Delaware 100.00 4 Mobil Sekiyu Kabushiki Kaisha ........... Japan 100.00 (Level indicates the parent/subsidiary hierarchical relationship.) (Asterisk indicates 100% ownership held by two or more Mobil subsidiaries.) Mobil - 28 - Exhibit 21 MOBIL CORPORATION Subsidiaries of the Registrant Percentage of Voting Securities Owned by Organized Immediate Level under Laws of Parent - - - - ----- ------------- --------- 1 Mobil Corporation (continued) 2 Mobil International Petroleum Corporation (continued) 3 Mobil Petroleum Company Inc. (concluded) 4 Mobil Vietnam Inc. ...................... Delaware 100.00 4 Mobil Yanbu Petrochemical Company Inc.... Delaware 100.00 4 Mobil Yanbu Refining Company Inc. ....... Delaware 100.00 4 Mobil Petrochemical Sales and Supply Corporation ........................... Delaware 100.00 3 Mobil Petrochemicals International Limited ................................. Delaware 100.00 3 Mobil Plastics Europe, Inc. ............... Delaware 100.00 4 Mobil Petrochemical Holdings Co. Inc. ... Delaware 100.00 3 Mobil Sales and Supply Corporation ........ Delaware 100.00 4 Mobil Gas Liquids Trading, Inc. ......... Delaware 100.00 2 Mobil Oil Corporation ....................... New York 100.00 3 Mobil Alaska Pipeline Company ............. Delaware 100.00 3 Mobil Chemical Company Inc. ............... Delaware 100.00 3 Mobil Development Nigeria Inc. ............ Delaware 100.00 4 Mobil Producing Nigeria Unlimited ....... Nigeria 50.00* 3 Mobil Exploration and Development Venezuela Inc. .......................... Delaware 100.00 3 Mobil Exploration and Producing Services Inc. .................................. Delaware 100.00 3 Mobil Exploration Nigeria Inc. ............ Delaware 100.00 4 Mobil Producing Nigeria Unlimited ....... Nigeria 50.00* 3 Mobil Oil Credit Corporation .............. Delaware 100.00 3 Mobil Oil Nigeria Public Limited Company .. Nigeria 60.00 3 Mobil Oil Refining Corporation ............ Delaware 100.00 3 Mobil Pipe Line Company ................... Delaware 100.00 3 Mobil Technology Company .................. Delaware 100.00 3 Mobil Rocky Mountain Inc. ................. Delaware 100.00 4 Mobil Investments Canada Inc. ........... Delaware 65.31* 2 Mobil Producing Texas & New Mexico Inc. ..... Delaware 100.00 2 Mobil Qatargas Inc. ......................... Delaware 100.00 2 The Superior Oil Company .................... Delaware 100.00 2 Tucker Housewares Inc. ...................... Delaware 100.00 (Level indicates the parent/subsidiary hierarchical relationship.) (Asterisk indicates 100% ownership held by two or more Mobil subsidiaries.) Mobil - 29 -