| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| AFRICA OIL EXPLORATION LTD | 07847435 | 02/10/2012 | Dissolved |
| Anvil Energy Ltd | 01357605 | 13/11/1996 | Dissolved |
| BLOCK ENERGY PLC | 05356303 | 11/06/2018 | Silver |
| Diamond Sea Shipping Corp | FC012298 | 30/06/1997 | Dissolved |
| Gx Petroleum Ltd | 04335817 | 11/12/2001 | Dissolved |
| Ranger Oil Cote D'Ivoire S A R L | FC020756 | 15/12/1997 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| BRAVEHEART CLEAN ENERGY INVESTMENTS LIMITED | 14221128 | 19/12/2022 | 03/10/2023 | Gold |
| Berkeley Exploration & Production Plc | 01448241 | 13/11/1996 | 09/09/2001 | Dissolved |
| CAPRICORN ENERGY UK LIMITED | 04362104 | 01/04/2005 | 26/10/2012 | Gold |
| CNR INTERNATIONAL (TRUSTEES) LIMITED | 03135608 | 13/11/1996 | 09/09/2001 | Not Trading |
| CNR INTERNATIONAL (U.K.) DEVELOPMENTS LIMITED | 01021629 | 03/02/1997 | 09/09/2001 | Amber |
| CNR INTERNATIONAL (U.K.) INVESTMENTS LIMITED | 01293529 | 13/11/1996 | 09/09/2001 | Silver |
| CNR INTERNATIONAL (U.K.) LIMITED | 00813187 | 16/10/1996 | 09/09/2001 | Bronze |
| PLAZA 107 LIMITED | 02941555 | 05/08/1994 | 27/02/1995 | Dissolved |
| Ranger Oil (North Sea) Ltd | 01015049 | 13/11/1996 | 09/09/2001 | Dissolved |
| Ranger Oil (U.K.) Ltd | 01474950 | 13/11/1996 | 09/09/2001 | Dissolved |