| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| B H P Petroleum (Netherlands) Corporation | FC007255 | 30/03/1972 | Dissolved |
| Hamilton Brothers Exploration (U K) Ltd | 01036100 | 09/07/1991 | Dissolved |
| Hamilton International (U K) Ltd | 01507863 | 09/07/1991 | Dissolved |
| hamilton (1985) uk ltd | 01907662 | 09/07/1992 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| BHP BILLITON PETROLEUM GREAT BRITAIN LIMITED | 00810819 | 28/03/1992 | 04/03/1998 | Silver |
| Bhp Petroleum (U.K.) Ltd | 01529796 | 26/09/1992 | 21/03/1995 | Dissolved |
| Bhp Petroleum North Sea Ltd | 01463351 | 01/06/1994 | 21/03/1995 | Dissolved |
| Clinton International North Sea Ltd | 00995617 | 29/06/1992 | 21/03/1995 | Dissolved |
| WOODSIDE ENERGY (GREAT BRITAIN) LIMITED | 01064509 | 09/07/1991 | 04/03/1998 | Amber |