| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Blades of London Ltd | 03530880 | 08/05/1998 | Dissolved |
| Candet Ltd | 03530767 | 25/03/1998 | Dissolved |
| Hexagon Communications Limited | 02607342 | 27/06/1991 | Dissolved |
| Zedona Ltd | 03530770 | 25/03/1998 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| ALTA QUEST ENERGY CORPORATION (UK) LIMITED | 02171441 | 14/10/2005 | 30/06/2011 | Silver |
| ALTAQUEST OIL PRODUCTS LIMITED | 02170970 | 14/10/2005 | 30/06/2011 | Strike Off |
| BLACKLAND PARK EXPLORATION LIMITED | 01881647 | 25/09/1991 | 30/06/2011 | Silver |
| BLACKLAND PARK EXPLORATION LIMITED | 01881647 | 19/04/1999 | 31/10/1999 | Silver |
| BLADES OF SAVILE ROW LIMITED | 01556814 | 28/05/1998 | 19/09/2011 | Amber |
| BRITENERGY GROUP LIMITED | 03743318 | 27/04/1999 | 29/03/2012 | Gold |
| BRITENERGY GROUP LIMITED | 03743318 | 27/04/1999 | 01/06/2006 | Gold |
| COURAGE ENERGY (U.K.) LIMITED | 03446506 | 14/10/2005 | 30/06/2011 | Amber |
| EAGLESTONE PETROLEUM LIMITED | 01579437 | 25/09/1992 | 30/06/2011 | Bronze |
| EAGLESTONE PETROLEUM LIMITED | 01579437 | 19/04/1999 | 30/06/2011 | Bronze |
| EOS ENERGIES LIMITED | 03800003 | 24/07/1999 | 19/09/2011 | Gold |
| FORTUNE OIL LIMITED | 02173279 | 23/07/1991 | 31/12/1993 | Silver |
| GREEN SOLUTIONS. UK. LIMITED | 03800001 | 24/07/1999 | 19/09/2011 | Dissolved |
| Roc Oil (Bel) Ltd | 01174987 | 25/09/1992 | 12/11/1997 | Dissolved |
| Roc Oil (E M O G) Ltd | 02245030 | 25/09/1992 | 12/11/1997 | Dissolved |
| THE COMMUNICATION EXCHANGE LIMITED | 02704131 | 01/10/1992 | 26/04/2001 | Dissolved |