| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| BRYNEICH ENERGY LTD | 08741041 | 21/10/2013 | Dissolved |
| FORETEN PETROLEUM LTD | 08611714 | 16/07/2013 | Dissolved |
| Petroleum Development Associates (Asahan) Ltd | 04855204 | 20/02/2004 | Dissolved |
| Petroleum Development Associates (Asia) Ltd | 04457650 | 20/02/2004 | Dissolved |
| Petroleum Development Associates (Glagah Kambuna) Ltd | 04855042 | 20/02/2004 | Dissolved |
| Petroleum Development Associates Uk (2002) Ltd | 04581588 | 20/02/2004 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| GESGB | 04128009 | 08/01/2002 | 13/01/2004 | Silver |
| GESGB CONFERENCES LIMITED | 02649148 | 03/12/2003 | 15/12/2004 | Silver |
| HANNU NORTH SEA LIMITED | 06590959 | 13/05/2008 | 19/04/2013 | Dissolved |
| MPX RESOURCES LIMITED | 06404637 | 19/10/2007 | 19/04/2013 | Dissolved |
| NEO ENERGY (ZEL) LIMITED | 06748922 | 13/11/2008 | 19/04/2013 | Bronze |
| NEO ENERGY (ZEX) LIMITED | 05834920 | 01/06/2006 | 19/04/2013 | Amber |
| NEO ENERGY (ZNS) LIMITED | 06576309 | 25/04/2008 | 19/04/2013 | Silver |
| NEO ENERGY (ZOG) LIMITED | 05693929 | 01/02/2006 | 19/04/2013 | One Red Flag |
| PETROLEUM DEVELOPMENT ASSOCIATES (LEMATANG) LIMITED | 03124788 | 20/02/2004 | 16/12/2005 | Dissolved |
| SERICA ENERGY (UK) LIMITED | 04073712 | 01/01/2004 | 16/12/2005 | Silver |
| Suthers Street Management Co Ltd | 06748961 | 13/11/2008 | 13/11/2008 | Dissolved |