Exhibit 21 SUBSIDIARIES OF THE REGISTRANT Name Organized Under Laws of ---- ----------------------- Conoco Canada Limited ............................. Canada Conoco Developments Ltd. .......................... England Conoco Inc. ....................................... Delaware Conoco Indonesia Inc. ............................. Delaware Conoco International, Inc. ........................ Delaware Conoco Investments Norge A/S ...................... Norway Conoco Ireland Ltd. ............................... Delaware Conoco Limited .................................... England Conoco Mineraloel GmbH ............................ Germany Conoco Norway Inc. ................................ Delaware Conoco Petroleum Limited .......................... England Conoco Petroleum Norge A/S ........................ Norway Conoco Pipe Line Company .......................... Delaware Conoco Specialty Products, Inc. ................... Delaware Conoco Timan-Pechora Ltd. ......................... Bermuda Conoco (U.K.) Limited ............................. England Consol Energy Inc. (50% owned) .................... Delaware Continental Oil Company of Libya .................. Delaware Danube Insurance Ltd. ............................. Bermuda Douglas Oil Company of California ................. California Dubai Petroleum Company ........................... Delaware DuPont Agrichemicals Caribe, Inc. ................. Delaware DuPont Argentina S.A. ............................. Argentina DuPont Asia Pacific, Ltd. ......................... Delaware DuPont (Australia) Limited ........................ Australia DuPont Canada Inc. (76.79% owned) ................. Canada DuPont Chemical and Energy Operations, Inc. ....... Delaware DuPont Delaware, Inc. ............................. Delaware DuPont Diagnostics, Inc. .......................... Delaware DuPont de Colombia, S.A. .......................... Colombia DuPont de Nemours (Belgium) N.V. .................. Belgium DuPont de Nemours (Deutschland) GmbH .............. Germany DuPont de Nemours (Flandre), S.A. ................. France DuPont de Nemours (France) S.A. ................... France DuPont de Nemours International S.A. .............. Switzerland DuPont de Nemours Italiana S.p.A. ................. Italy DuPont de Nemours (Luxembourg) S.A. ............... Luxembourg DuPont de Nemours (Nederland) B.V. ................ The Netherlands DuPont do Brasil S.A. ............................. Brazil DuPont Electronic Materials, Inc. ................. Delaware DuPont Energy Company ............................. Delaware DuPont Engineering Products, S.A. ................. Luxembourg DuPont Feedstocks Company ......................... Delaware DuPont Foreign Sales Corporation .................. Virgin Islands DuPont Iberica, S.A. .............................. Spain Name Organized Under Laws of ---- ----------------------- DuPont (K.K.) ..................................... Delaware DuPont Korea, Ltd. ................................ Republic of Korea DuPont Merck Pharmaceutical Company (Delaware Partnership) (50% owned) ........................ Delaware DuPont Merck Pharma (Puerto Rico Partnership) (50% owned) ..................................... Puerto Rico DuPont (New Zealand) Ltd. ......................... New Zealand DuPont Photomasks, Inc. ........................... Texas DuPont, S.A. de C.V. .............................. Mexico DuPont Scandanavia A.B. ........................... Sweden DuPont (Singapore) Pte. Ltd. ...................... Singapore DuPont (Singapore) Fibres Pte. Ltd. (90% owned) ... Singapore DuPont Taiwan Ltd. ................................ Taiwan DuPont (Thailand) Co. Ltd. ........................ Thailand DuPont Treasury Ltd. .............................. England DuPont (U.K.) Limited ............................. England Kayo Oil Company .................................. Delaware Societe Europeene Des Carburants .................. Belgium World Wide Transport, Inc. ........................ Liberia Subsidiaries not listed would not, if considered in the aggregate as a single subsidiary, constitute a significant subsidiary. 2