| Name | Company Number | Date Appointed | Rating |
|---|
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| AL HAJ PAKISTAN EXPLORATION LIMITED | 01164960 | 01/11/2000 | 31/01/2003 | Bronze |
| CUTTY SARK ENTERPRISES LIMITED | 04688590 | 28/09/2006 | 05/03/2009 | Not Trading |
| FALKLAND OIL AND GAS LIMITED | FC026234 | 19/09/2005 | 10/06/2015 | Dissolved |
| HARBOUR ENERGY PLC | SC234781 | 13/09/2002 | 20/01/2003 | Silver |
| KNIGHTSBRIDGE RESIDENTS MANAGEMENT COMPANY LIMITED | 05505563 | 27/02/2009 | 14/09/2011 | Bronze |
| Maxoil Services Ltd | 03398857 | 01/11/2000 | 08/10/2001 | Dissolved |
| PREMIER OIL AND GAS SERVICES LIMITED | 03468792 | 01/11/2000 | 31/01/2003 | Gold |
| PREMIER OIL EXPLORATION LIMITED | SC021265 | 12/09/2000 | 31/01/2003 | Amber |
| PREMIER OIL GROUP LIMITED | SC017829 | 03/07/2000 | 31/01/2003 | Gold |
| PREMIER OIL HOLDINGS LIMITED | 03689620 | 12/09/2000 | 31/01/2003 | Amber |
| PREMIER OIL SOUTH ANDAMAN LIMITED | 01474678 | 05/03/2001 | 31/01/2003 | Amber |
| PREMIER OIL UK LIMITED | SC048705 | 12/09/2000 | 31/01/2003 | Silver |
| Premier Oil Dorset Ltd | 01165601 | 12/09/2000 | 31/01/2003 | Dissolved |
| Rocky Mountains Oil & Gas Ltd | 01505884 | 05/03/2001 | 31/01/2003 | Dissolved |
| THE CUTTY SARK TRUST | 00512170 | 19/07/2007 | 05/03/2009 | Dissolved |