| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| DISCOVER EXPLORATION LIMITED | 08259092 | 21/11/2012 | Amber |
| Perenco Oil & Gas (Uk) Ltd | 04316382 | 13/09/2002 | Dissolved |
| Perenco Plc | 04006589 | 12/06/2000 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ASSALA ENERGY UK LIMITED | 10549881 | 05/01/2017 | 21/06/2024 | Silver |
| OPHIR ENERGY LIMITED | 05047425 | 07/07/2011 | 06/08/2012 | Bronze |
| PERENCO ENERGIES INTERNATIONAL LIMITED | SC061143 | 10/02/1989 | 26/02/2010 | Bronze |
| PERENCO GAS (UK) LIMITED | 00715529 | 01/08/2007 | 26/02/2010 | Silver |
| PERENCO HOLDINGS | 01568950 | 09/07/1992 | 22/02/2010 | Silver |
| PERENCO INVESTMENTS (U.K.) | 02215004 | 31/07/1992 | 26/02/2011 | One Red Flag |
| PERENCO UK LIMITED | 04653066 | 30/01/2003 | 26/02/2010 | Bronze |