| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| CLAREMONT PROPERTY MANAGEMENT LTD | 10207008 | 31/05/2016 | Dissolved |
| HALO OFFSHORE UK LIMITED | SC342665 | 02/12/2024 | One Red Flag |
| Killough Resources Ltd | 06781230 | 30/12/2008 | Dissolved |
| ORCADIAN ENERGY (CNS) LTD | 08954960 | 24/03/2014 | One Red Flag |
| ORCADIAN ENERGY PLC | 13298968 | 29/03/2021 | One Red Flag |
| Setanta Energy Ltd | 05175049 | 09/07/2004 | Dissolved |
| Setanta Energy Ltd | 05175049 | 09/07/2004 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| CHALLENGE ENERGY LIMITED | 03411275 | 09/10/1997 | 31/05/2002 | Dissolved |
| CHALLENGE OIL & GAS LIMITED | 03411281 | 09/10/1997 | 31/05/2002 | Dissolved |
| ENQUEST DONS LIMITED | 03351775 | 07/11/2003 | 30/06/2004 | Dissolved |
| EXILE RESOURCES SERVICES LTD | 05552389 | 02/09/2005 | 14/09/2005 | Dissolved |
| EXILE RESOURCES SERVICES LTD | 05552389 | 02/09/2005 | 29/03/2007 | Dissolved |
| Mercury Oil & Gas Ltd. | 04148542 | 20/05/2002 | 31/07/2002 | Dissolved |
| PETROFAC FACILITIES MANAGEMENT GROUP LIMITED | SC109608 | 20/04/2004 | 30/06/2004 | Not Trading |
| PRODUCTION SERVICES NETWORK BANGLADESH LIMITED | 02214332 | 09/08/1996 | 06/01/1998 | Not Trading |
| SETANTA ENERGY MANCO LIMITED | 06439846 | 07/01/2008 | 04/12/2014 | Dissolved |