| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| ADAMANTINE ENERGY LIMITED | 07429284 | 04/11/2010 | Dissolved |
| CARIBX (UK) LIMITED | 06888428 | 15/11/2010 | One Red Flag |
| MDOIL LIMITED | 05275394 | 02/11/2004 | One Red Flag |
| REBELLION OIL LIMITED | 11254340 | 14/03/2018 | Dissolved |
| REBELLION OIL LIMITED | 07926352 | 27/01/2012 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| CARIBX HONDURAS LTD. | 10009825 | 17/02/2016 | 15/09/2021 | Dissolved |
| DELTIC ENERGY PLC | 07958581 | 24/10/2013 | 30/08/2016 | Amber |
| EXACTOIL INTERNATIONAL LIMITED | 07775909 | 19/04/2012 | 01/07/2013 | Dissolved |
| HELIUM RESOURCES LIMITED | 07775596 | 15/09/2011 | 16/10/2024 | Amber |
| OILSEARCH LIMITED | 02903588 | 30/04/2010 | 22/06/2015 | One Red Flag |
| SAGOSS LIMITED | 05937380 | 14/10/2015 | 30/04/2016 | Silver |