| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| BAYFIELD ENERGY (ALPHA) LTD | 07349534 | 14/02/2013 | Dissolved |
| BAYFIELD ENERGY NEW VENTURES LIMITED | 07430822 | 14/02/2013 | Dissolved |
| DINGWALL ENERGY ADVISORS LIMITED | SC290270 | 13/09/2005 | Dissolved |
| TRINITY EXPLORATION AND PRODUCTION (PLETMOS) LIMITED | 07433783 | 14/02/2013 | Dissolved |
| Venture Production (Britain) Ltd | SC230112 | 15/05/2002 | Dissolved |
| Vesta Petroleum Investments Ltd | 06537549 | 18/03/2008 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| BAYFIELD ENERGY LIMITED | 06395419 | 14/02/2013 | 03/08/2021 | Amber |
| CENTRICA PRODUCTION LIMITED | SC169182 | 18/04/1997 | 09/09/2004 | Not Trading |
| CENTRICA PRODUCTION TRUSTEES LIMITED | SC183241 | 05/05/1998 | 09/09/2004 | Insolvent |
| FETTES INTERNATIONAL LIMITED | SC600280 | 18/06/2018 | 03/08/2021 | Silver |
| MILLSILVER LIMITED | SC338049 | 29/02/2008 | 16/06/2020 | Dissolved |
| PGS EM LIMITED | SC243297 | 10/05/2005 | 29/06/2007 | Dissolved |
| SPIRIT ENERGY NORTH SEA OIL LIMITED | SC210361 | 13/10/2000 | 09/09/2004 | Bronze |
| SPIRIT NORTH SEA GAS LIMITED | SC182822 | 01/09/1998 | 09/09/2004 | Silver |
| THE FETTES FOUNDATION | SC189253 | 17/10/2008 | 03/08/2021 | One Red Flag |
| TRINITY EXPLORATION & PRODUCTION (UK) LIMITED | SC396945 | 25/05/2011 | 03/08/2021 | Amber |
| TRINITY EXPLORATION & PRODUCTION PLC | 07535869 | 13/02/2013 | 03/08/2021 | Silver |
| TRINITY EXPLORATION AND PRODUCTION SERVICES (UK) LIMITED | 06581076 | 14/02/2013 | 03/08/2021 | Amber |
| TULLIBARDINE LIMITED | SC210027 | 12/04/2005 | 10/11/2011 | Silver |