| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| British Borneo Expro Ltd | FC020183 | 29/06/2000 | Dissolved |
| British-Borneo Oil Ltd | 03374133 | 11/05/2000 | Dissolved |
| Eni Lasmo Trustee Ltd | 02507284 | 29/11/2001 | Dissolved |
| Lasmo (U D G ) Plc | 01234982 | 22/04/2002 | Dissolved |
| Lasmo (Vei) Ltd | 03173751 | 11/12/2001 | Dissolved |
| Lasmo Kakap Ltd | 01682791 | 13/12/2001 | Dissolved |
| Lasmo Madura Ltd | 01750351 | 13/12/2001 | Dissolved |
| Lasmo Sumatra Ltd | 01682796 | 29/11/2001 | Dissolved |
| Oil Exploration (Holdings) Ltd | 01024938 | 22/04/2002 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| CENTRICA PRODUCTION (DMF) LIMITED | 01483729 | 24/08/2001 | 21/08/2003 | Dissolved |
| E N I Liverpool Bay Ltd | 02566262 | 24/08/2001 | 21/08/2003 | Dissolved |
| ENI AMBALAT LIMITED | 03968980 | 29/11/2001 | 21/08/2003 | Not Trading |
| ENI ANS LIMITED | 02554093 | 11/05/2000 | 21/08/2003 | Dissolved |
| ENI AUSTRALIA LIMITED | 01020949 | 10/05/2001 | 21/08/2003 | Amber |
| ENI BB LIMITED | 00261640 | 10/05/2001 | 21/08/2003 | Dissolved |
| ENI BBOH LIMITED | 01020948 | 10/05/2001 | 21/08/2003 | Dissolved |
| ENI BRUPEX LIMITED | 00135247 | 10/05/2001 | 21/08/2003 | Dissolved |
| ENI BUKAT LIMITED | 03856870 | 29/11/2001 | 21/08/2003 | Not Trading |
| ENI COTE D'IVOIRE LIMITED | 02556415 | 10/05/2001 | 21/08/2003 | Amber |
| ENI ELGIN/FRANKLIN LIMITED | 03772746 | 11/05/2000 | 21/08/2003 | Silver |
| ENI GANAL LIMITED | 03771954 | 29/11/2001 | 21/08/2003 | Not Trading |
| ENI HYDROCARBONS VENEZUELA LIMITED | 01452037 | 11/05/2000 | 21/08/2003 | Gold |
| ENI INDIA LIMITED | 02735371 | 31/07/2000 | 21/08/2003 | Amber |
| ENI INDONESIA LIMITED | 02334535 | 29/11/2001 | 21/08/2003 | Not Trading |
| ENI INVESTMENTS PLC | 04126448 | 13/12/2000 | 04/09/2003 | Gold |
| ENI JPDA 03-13 LIMITED | 02664257 | 10/05/2001 | 21/08/2003 | Silver |
| ENI KRUENG MANE LIMITED | 03562003 | 29/11/2001 | 21/08/2003 | Not Trading |
| ENI LASMO PLC | 01008965 | 16/01/2002 | 21/08/2003 | Gold |
| ENI LIVERPOOL BAY OPERATING COMPANY LIMITED | 01003825 | 11/05/2000 | 21/08/2003 | Not Trading |
| ENI LNS LIMITED | 00970280 | 24/08/2001 | 21/08/2003 | Not Trading |
| ENI MEP LIMITED | 00231611 | 24/08/2001 | 21/08/2003 | Dissolved |
| ENI MOG LIMITED | 03211318 | 02/08/2002 | 21/08/2003 | Dissolved |
| ENI OIL ALGERIA LIMITED | 02274210 | 08/08/2002 | 21/08/2003 | Gold |
| ENI PAPALANG LIMITED | 04530307 | 10/09/2002 | 21/08/2003 | Dissolved |
| ENI POPODI LIMITED | 04530309 | 10/09/2002 | 21/08/2003 | Dissolved |
| ENI RAPAK LIMITED | 03771987 | 29/11/2001 | 21/08/2003 | Not Trading |
| ENI RESOURCES LIMITED | 02161862 | 24/08/2001 | 21/08/2003 | Dissolved |
| ENI TNS LIMITED | SC055200 | 24/08/2001 | 21/08/2003 | Not Trading |
| ENI TTO LIMITED | 00196665 | 24/08/2001 | 21/08/2003 | Dissolved |
| ENI UFL LIMITED | 02325373 | 22/04/2002 | 21/08/2003 | Dissolved |
| ENI UHL LIMITED | 00916179 | 07/01/2002 | 21/08/2003 | Silver |
| ENI UK LIMITED | 00862823 | 11/07/2002 | 21/08/2003 | Silver |
| ENI UKCS LIMITED | 01019748 | 11/05/2000 | 21/08/2003 | Gold |
| ENI ULT LIMITED | 00301317 | 22/04/2002 | 21/08/2003 | Silver |
| ENI ULX LIMITED | 00936223 | 24/08/2001 | 21/08/2003 | Silver |
| ENI VENTURES PLC | 03939723 | 20/02/2002 | 21/08/2003 | Dissolved |
| Eni Energy Ltd | 00176270 | 06/11/2001 | 21/08/2003 | Dissolved |
| Eni International Exploration Ltd | 02451388 | 21/12/2001 | 21/08/2003 | Dissolved |
| Eni Linv Ltd | 02451354 | 11/12/2001 | 21/08/2003 | Dissolved |
| Eni Malacca Ltd | 01664303 | 13/12/2001 | 21/08/2003 | Dissolved |
| Eni Malagot Ltd | 03478543 | 29/11/2001 | 21/08/2003 | Dissolved |
| Eni Methodplan Ltd | 02642814 | 29/11/2001 | 21/08/2003 | Dissolved |
| Eni Mhh Ltd | 01820901 | 08/08/2002 | 21/08/2003 | Dissolved |
| Eni Neptune Ltd | 01198236 | 06/11/2001 | 21/08/2003 | Dissolved |
| Eni Securities Ltd | 02351633 | 21/12/2001 | 21/08/2003 | Dissolved |
| Eni Sesulu Ltd | 03771970 | 29/11/2001 | 21/08/2003 | Dissolved |
| Eni Tns Holdings Ltd | 00518762 | 24/08/2001 | 21/08/2003 | Dissolved |
| Lasmo Cumi-Cumi Ltd | 02544269 | 29/11/2001 | 21/08/2003 | Dissolved |
| PRIME AEP LIMITED | 00307812 | 11/05/2000 | 21/08/2003 | Gold |
| PRIME PAKISTAN LIMITED | 00151940 | 29/11/2001 | 21/08/2003 | Silver |