| Name | Company Number | Date Appointed | Rating |
|---|
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ACORN OIL & GAS LIMITED | 04132465 | 15/10/2004 | 05/11/2005 | Dissolved |
| B P Exploration (Pur) Ltd | 01046590 | 01/05/1992 | 30/09/1995 | Dissolved |
| BP EXPLORATION (AZERBAIJAN) LIMITED | 02160234 | 01/06/1993 | 31/08/1995 | Silver |
| BP EXPLORATION (CASPIAN SEA) LIMITED | 00404347 | 10/04/1993 | 31/08/1995 | Silver |
| BP EXPLORATION (VIETNAM) LIMITED | 00567256 | 09/12/1994 | 01/09/1995 | Dissolved |
| BP EXPLORATION OPERATING COMPANY LIMITED | 00305943 | 12/09/1992 | 31/08/1995 | Gold |
| BP OIL INTERNATIONAL LIMITED | 00322365 | 16/12/1992 | 30/06/1995 | Gold |
| CENTRICA PRODUCTION (DMF) LIMITED | 01483729 | 01/02/1999 | 06/12/1999 | Dissolved |
| COLOMBIA PIPELINES LIMITED | 00575605 | 28/11/1994 | 01/09/1995 | Amber |
| E N I Liverpool Bay Ltd | 02566262 | 30/06/1999 | 06/12/1999 | Dissolved |
| ENI BUKAT LIMITED | 03856870 | 06/10/1999 | 06/12/1999 | Not Trading |
| ENI GANAL LIMITED | 03771954 | 12/05/1999 | 06/12/1999 | Not Trading |
| ENI INDONESIA LIMITED | 02334535 | 01/02/1999 | 06/12/1999 | Not Trading |
| ENI INTERNATIONAL LIMITED | 01431033 | 01/09/1997 | 06/12/1999 | Dissolved |
| ENI KRUENG MANE LIMITED | 03562003 | 06/05/1998 | 01/02/1999 | Not Trading |
| ENI LASMO PLC | 01008965 | 21/07/1997 | 06/12/1999 | Gold |
| ENI LNS LIMITED | 00970280 | 01/02/1999 | 06/12/1999 | Not Trading |
| ENI MEP LIMITED | 00231611 | 30/06/1999 | 06/12/1999 | Dissolved |
| ENI MIDDLE EAST LIMITED | 03180997 | 15/12/1997 | 06/12/1999 | Amber |
| ENI MOG LIMITED | 03211318 | 14/06/1999 | 06/12/1999 | Dissolved |
| ENI OIL ALGERIA LIMITED | 02274210 | 01/02/1999 | 06/12/1999 | Gold |
| ENI RAPAK LIMITED | 03771987 | 12/05/1999 | 06/12/1999 | Not Trading |
| ENI RESOURCES LIMITED | 02161862 | 30/06/1999 | 06/12/1999 | Dissolved |
| ENI TNS LIMITED | SC055200 | 01/02/1999 | 06/12/1999 | Not Trading |
| ENI TTO LIMITED | 00196665 | 01/02/1999 | 06/12/1999 | Dissolved |
| ENI UHL LIMITED | 00916179 | 01/02/1999 | 06/12/1999 | Silver |
| ENI ULT LIMITED | 00301317 | 01/02/1999 | 06/12/1999 | Silver |
| ENI ULX LIMITED | 00936223 | 01/02/1999 | 06/12/1999 | Silver |
| EQUION ENERGIA LIMITED | 00629687 | 08/10/1992 | 01/09/1995 | Gold |
| Eni Malagot Ltd | 03478543 | 04/12/1997 | 06/12/1999 | Dissolved |
| Eni Overseas Holdings Ltd | 01431776 | 01/02/1999 | 06/12/1999 | Dissolved |
| Eni Sesulu Ltd | 03771970 | 12/05/1999 | 06/12/1999 | Dissolved |
| Eni Tns Holdings Ltd | 00518762 | 01/02/1999 | 06/12/1999 | Dissolved |
| Eni Trading Ltd | 01521565 | 01/02/1999 | 06/12/1999 | Dissolved |
| FAIRFIELD ENERGY HOLDINGS LIMITED | 05562502 | 13/09/2005 | 01/03/2013 | One Red Flag |
| FAIRFIELD ENERGY LIMITED | 05562373 | 13/09/2005 | 01/03/2013 | One Red Flag |
| Lasmo (Azerbaijan) Ltd | 03525154 | 06/03/1998 | 06/12/1999 | Dissolved |
| Lasmo (Vei) Ltd | 03173751 | 01/09/1997 | 15/02/1999 | Dissolved |
| Lasmo Cumi-Cumi Ltd | 02544269 | 01/02/1999 | 06/12/1999 | Dissolved |
| Lasmo Grand Maghreb Ltd | 02466698 | 01/02/1999 | 06/12/1999 | Dissolved |
| PRIME PAKISTAN LIMITED | 00151940 | 01/02/1999 | 06/12/1999 | Silver |