| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| MILTON CAPITAL PLC | 13628457 | 30/10/2023 | Silver |
| PROSPECT OIL AND GAS LIMITED | 08836548 | 08/01/2014 | Dissolved |
| PROSPEX OG LIMITED | 08871669 | 31/01/2014 | Dissolved |
| SALLORK (PROPERTY) LIMITED | SC361847 | 26/06/2009 | One Red Flag |
| SALLORK LEGAL AND COMPLIANCE LIMITED | SC456034 | 05/08/2013 | Silver |
| SALLORK LIMITED | SC358779 | 28/04/2009 | Silver |
| SPURMONT LIMITED | 14917012 | 06/06/2023 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| AFRICA ENERGY UK LIMITED | 07993785 | 03/05/2012 | 22/01/2014 | Amber |
| ARENITE PETROLEUM LIMITED | SC470463 | 20/02/2014 | 01/06/2015 | Insolvent |
| CANADIAN OVERSEAS PETROLEUM (UK) LIMITED | 06916260 | 11/11/2014 | 18/08/2018 | Insolvent |
| DEO PETROLEUM EXPLORATION LIMITED | 07872978 | 03/04/2012 | 13/08/2012 | Dissolved |
| DEO PETROLEUM LIMITED | 03882653 | 06/10/2010 | 13/08/2012 | Strike Off |
| DEO PETROLEUM U.K. LIMITED | 07336090 | 12/09/2011 | 13/08/2012 | Strike Off |
| PREMIER OIL EXPLORATION ONS LIMITED | 01241035 | 30/04/2008 | 21/05/2009 | Insolvent |
| PROSPEX ENERGY PLC | 03896382 | 14/04/2015 | 07/02/2023 | Silver |
| THE PEPPERCOAST FOUNDATION | 08104553 | 13/06/2012 | 15/05/2013 | Dissolved |