| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Amoco (U K) Exploration Co | FC005332 | 30/09/1997 | Dissolved |
| Bhp Petroleum (U.K.) Ltd | 01529796 | 01/09/2002 | Dissolved |
| Bhp Petroleum North Sea Ltd | 01463351 | 01/09/2002 | Dissolved |
| KVASIR CONSULTING LIMITED | 11094014 | 04/12/2017 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| AMOCO U.K.PETROLEUM LIMITED | 00799710 | 20/05/1998 | 31/03/1999 | Not Trading |
| AURELIAN OIL & GAS LIMITED | 01685863 | 16/09/2009 | 25/01/2013 | One Red Flag |
| BHP BILLITON PETROLEUM GREAT BRITAIN LIMITED | 00810819 | 01/09/2002 | 26/10/2007 | Silver |
| GARRAD HASSAN GROUP LIMITED | 04668515 | 28/03/2014 | 02/11/2016 | Gold |
| WOODSIDE ENERGY (GREAT BRITAIN) LIMITED | 01064509 | 01/09/2002 | 26/10/2007 | Amber |