EXHIBIT 21 Subsidiaries of the Registrant (1), (2) and (3) AT DECEMBER 31, 2001
Percentage of Voting Securities Owned Directly State or or Indirectly by Country of Registrant Organization ----------------- ----------------- Aera Energy, LLC (5)......................................... 48.2 California Al-Jubail Petrochemical Company (4) (5)...................... 50 Saudi Arabia Ampolex (CEPU) Pte Ltd....................................... 100 Singapore Ancon Insurance Company, Inc................................. 100 Vermont BEB Erdgas und Erdoel GmbH (4) (5)........................... 50 Germany Cameroon Oil Transportation Company S.A. (5)................. 34.6 Cameroon Caspian Pipeline Consortium (5).............................. 7.5 Russia/Kazakhstan Castle Peak Power Company Limited (5)........................ 60 Hong Kong Chalmette Refining, LLC (4) (5).............................. 50 Delaware Compania Minera Disputada de Las Condes Limitada............. 100 Chile Delhi Petroleum Pty. Ltd..................................... 100 Australia Duke Energy Trading and Marketing, LLC (5)................... 40 Delaware Esso Australia Resources Pty Ltd............................. 100 Australia Esso Austria GmbH............................................ 100 Austria Esso Brasileira de Petroleo Limitada......................... 100 Brazil ESSO BVBA/SPRL............................................... 100 Belgium Esso Capital B.V............................................. 100 Netherlands Esso Chile Petrolera Limitada................................ 100 Chile ESSO Deutschland GmbH........................................ 100 Germany Esso Espanola, S. L.......................................... 100 Spain Esso Exploration and Production Angola (Block 33) Limited.... 100 Bahamas Esso Exploration and Production Chad Inc..................... 100 Delaware Esso Exploration and Production Nigeria (Deepwater) Limited.. 100 Nigeria Esso Exploration and Production Nigeria Limited.............. 100 Nigeria Esso Exploration and Production Norway AS.................... 100 Norway Esso Exploration and Production UK Limited................... 100 England Esso Exploration Angola (Block 15) Limited................... 100 Bahamas Esso Exploration Angola (Block 17) Limited................... 100 Bahamas Esso Holding Company Singapore Limited....................... 100 Bahamas Esso Ireland Limited......................................... 100 Ireland Esso Italiana S.r.l.......................................... 100 Italy Esso Malaysia Berhad......................................... 65 Malaysia Esso Natuna Ltd.............................................. 100 Bahamas Esso Nederland B.V........................................... 100 Netherlands Esso Norge AS................................................ 100 Norway Esso Petrolera Argentina Sociedad de Responsabilidad Limitada 100 Argentina Esso Petroleum Company, Limited.............................. 100 England Esso Pipeline Investments Limited............................ 100 Bahamas ESSO Schweiz GmbH............................................ 100 Switzerland Esso Sekiyu Yugen Kaisha..................................... 100 Japan Esso Societe Anonyme Francaise............................... 81.548 France Esso Standard Oil Company (Puerto Rico)...................... 100 Puerto Rico
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Percentage of Voting Securities Owned Directly State or or Indirectly by Country of Registrant Organization ----------------- ------------ Esso (Thailand) Public Company Limited............. 87.5 Thailand Esso Trading Company of Abu Dhabi.................. 100 Delaware Exxon Azerbaijan Limited........................... 100 Bahamas Exxon Capital Corporation.......................... 100 New Jersey Exxon Chemical Arabia Inc.......................... 100 Delaware Exxon Chemical Asset Management Partnership........ 91.01 Delaware Exxon Equity Holding Company....................... 100 Delaware Exxon Land Development, Inc........................ 100 Arizona Exxon Luxembourg Holdings LLC...................... 100 Delaware Exxon Mobile Bay Limited Partnership............... 92.68 Delaware Exxon Neftegas Limited............................. 100 Bahamas Exxon Overseas Corporation......................... 100 Delaware Exxon Overseas Investment Corporation.............. 100 Delaware Exxon Yemen Inc.................................... 100 Delaware ExxonMobil Alaska Production Inc................... 100 Delaware ExxonMobil Asia Pacific Pte. Ltd................... 100 Singapore ExxonMobil Aviation International Limited.......... 100 England ExxonMobil Canada Ltd.............................. 100 Canada ExxonMobil Central Europe Holding GmbH............. 100 Germany ExxonMobil Chemical Antwerp Ethylene............... 100 Belgium ExxonMobil Chemical Films Europe, Inc.............. 100 Delaware ExxonMobil Chemical France SARL.................... 99.77 France ExxonMobil Chemical International Services Limited. 100 Hong Kong ExxonMobil Chemical Holland B.V.................... 100 Netherlands ExxonMobil Chemical Holland LLC.................... 100 Delaware ExxonMobil Chemical Limited........................ 100 England ExxonMobil Chemical Olefins Inc.................... 100 Delaware ExxonMobil Chemical Operations Private Limited..... 100 Singapore ExxonMobil Chemical Polymeres SNC.................. 99.77 France ExxonMobil de Colombia S.A......................... 97.798 Colombia ExxonMobil Egypt (S.A.E.).......................... 100 Egypt ExxonMobil Energy Limited.......................... 100 Hong Kong ExxonMobil Exploration and Production Malaysia Inc. 100 Delaware ExxonMobil Far East Holdings Ltd................... 100 Bahamas ExxonMobil Finance B.V............................. 100 Netherlands ExxonMobil Global Services Company................. 100 Delaware ExxonMobil Holding Company Holland LLC............. 100 Delaware ExxonMobil Holding Norway AS....................... 100 Norway ExxonMobil Hong Kong Limited....................... 100 Hong Kong ExxonMobil International Holdings Inc.............. 100 Delaware ExxonMobil International Services, SARL............ 100 Luxembourg ExxonMobil Kazakhstan Inc.......................... 100 Bahamas ExxonMobil Kazakhstan Ventures Inc................. 100 Delaware ExxonMobil Luxembourg & Cie, SCA................... 100 Luxembourg ExxonMobil Luxembourg UK, SARL..................... 100 Luxembourg ExxonMobil Malaysia Sdn. Bhd....................... 100 Malaysia
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Percentage of Voting Securities Owned Directly State or or Indirectly by Country of Registrant Organization ----------------- ------------ ExxonMobil Oil Corporation............................ 100 New York ExxonMobil Oil Indonesia Inc.......................... 100 Delaware ExxonMobil Oil Singapore Pte. Ltd..................... 100 Singapore ExxonMobil Pipeline Company........................... 100 Delaware ExxonMobil Sales and Supply Corporation............... 100 Delaware Fina Antwerp Olefins N.V. (5)......................... 35 Belgium Imperial Oil Limited.................................. 69.6 Canada Infineum Holdings B.V. (5)............................ 49.963 Netherlands Infineum USA L.P. (4) (5)............................. 50 Delaware International Colombia Resources Corporation LLC...... 100 Delaware Mineraloelraffinerie Oberrhein GmbH & Co. KG (5)...... 25 Germany Mobil Argentina S.A................................... 99.999 Argentina Mobil Australia Resources Company Pty Limited......... 100 Australia Mobil Business Resources Corporation.................. 100 Delaware Mobil California Exploration & Producing Asset Company 100 Delaware Mobil Caspian Pipeline Company........................ 100 Delaware Mobil Cerro Negro, Ltd................................ 100 Delaware Mobil Corporation..................................... 100 Delaware Mobil Equatorial Guinea Inc........................... 100 Delaware Mobil Erdgas-Erdoel GmbH.............................. 99.999 Germany Mobil Exploration and Development Argentina Inc....... 100 Delaware Mobil Exploration & Producing Australia Pty Ltd....... 100 Australia Mobil Exploration and Producing North America Inc..... 100 Nevada Mobil Exploration Indonesia Inc....................... 100 Delaware Mobil Exploration Nigeria Inc......................... 100 Delaware Mobil Exploration Norway Inc.......................... 100 Delaware Mobil Fairfax Inc..................................... 100 Delaware Mobil Gas Marketing (U.K.) Limited.................... 100 England Mobil International Petroleum Corporation............. 100 Delaware Mobil Investments Inc................................. 100 Delaware Mobil (Legendre) Pty Ltd.............................. 100 Australia Mobil North Sea Limited............................... 100 Delaware Mobil Oil Abu Dhabi Inc............................... 100 Delaware Mobil Oil Australia Pty Ltd........................... 100 Australia Mobil Oil Exploration & Producing Southeast Inc....... 100 Delaware Mobil Oil Francaise................................... 99.986 France Mobil Oil Hong Kong Limited........................... 100 Hong Kong Mobil Oil New Zealand Limited......................... 100 New Zealand Mobil Oil Nigeria Public Limited Company.............. 60 Nigeria Mobil Producing Netherlands Inc....................... 100 Delaware Mobil Producing Nigeria Unlimited..................... 100 Nigeria Mobil Producing Texas & New Mexico Inc................ 100 Delaware Mobil Qatargas Inc.................................... 100 Delaware Mobil QM Gas Inc...................................... 100 Delaware
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Percentage of Voting Securities Owned Directly State or or Indirectly by Country of Registrant Organization ----------------- ---------------- Mobil Refining Australia Pty Ltd................. 100 Australia Mobil Sekiyu Yugen Kaisha........................ 100 Japan Mobil Shipping and Transportation Company........ 100 Marshall Islands Mobil U.S. Properties Inc........................ 100 Delaware Mobil Yanbu Petrochemical Company Inc............ 100 Delaware Mobil Yanbu Refining Company Inc................. 100 Delaware Nederlandse Aardolie Maatschappij B.V. (4)(5).... 50 Netherlands oy Esso ab....................................... 100 Finland Paxon Polymer Company, L.P. II................... 97.12 Delaware Qatar Liquefied Gas Company Limited (5).......... 10 Qatar Qenos Holdings Pty., Limited (4)(5).............. 50 Australia Ras Laffan Liquefied Natural Gas Company Ltd. (5) 26.5 Qatar Saudi Aramco Mobil Refinery Company Ltd. (4) (5). 50 Saudi Arabia Saudi Yanbu Petrochemical Co. (4) (5)............ 50 Saudi Arabia Schubert Beteiligungs-GmbH....................... 73.55 Germany SeaRiver Maritime Financial Holdings, Inc........ 100 Delaware SeaRiver Maritime, Inc........................... 100 Delaware Standard Marine Tonsberg AS...................... 100 Norway Superior Oil (U.K.) Limited...................... 100 England Tengizchevroil (5)............................... 25 Kazakhstan TonenGeneral Sekiyu K.K.......................... 50.021 Japan
- -------- NOTES: (1) For the purposes of this list, if the registrant owns directly or indirectly approximately 50 percent of the voting securities of any person and approximately 50 percent of the voting securities of such person is owned directly or indirectly by another interest, or if the registrant includes its share of net income of any other unconsolidated person in consolidated net income, such person is deemed to be a subsidiary. (2) With respect to certain companies, shares in names of nominees and qualifying shares in names of directors are included in the above percentages. (3) The names of other subsidiaries have been omitted from the above list since considered in the aggregate, they would not constitute a significant subsidiary under Securities and Exchange Commission Regulation S-X, Rule 1-02(w). (4) The registrant owns directly or indirectly approximately 50 percent of the securities of this person and approximately 50 percent of the voting securities of this person is owned directly or indirectly by another single interest. (5) The investment in this unconsolidated person is represented by the registrant's percentage interest in the underlying net assets of such person. The accounting for these unconsolidated persons is referred to as the equity method of accounting. 4