| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| ADVANCE ENERGY TL LIMITED | 13076601 | 01/06/2024 | Silver |
| NATURAL CARBON CAPITAL LIMITED | 14077975 | 29/04/2022 | Not Trading |
| QUANTUM XPLORATION INTERNATIONAL LIMITED | 15230632 | 09/09/2024 | Bronze |
| SOUTH ATLANTIC METALS LIMITED | 12083837 | 03/07/2019 | Dissolved |
| WALLOP ENERGY LIMITED | 13097827 | 23/12/2020 | Bronze |
| WARRAH RESOURCES LIMITED | 14406747 | 10/10/2022 | Gold |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| DESIRE PETROLEUM LIMITED | 03168611 | 18/01/2016 | 31/01/2022 | Silver |
| ROCKHOPPER CIVITA LIMITED | 03942212 | 11/08/2014 | 31/01/2022 | Amber |
| ROCKHOPPER CROATIA LIMITED | 09394182 | 19/01/2015 | 31/01/2022 | Not Trading |
| ROCKHOPPER EXPLORATION (HYDROCARBONS) LIMITED | 05376027 | 10/03/2014 | 31/01/2022 | Bronze |
| ROCKHOPPER EXPLORATION (OIL) LIMITED | 05357356 | 10/03/2014 | 31/01/2022 | Not Trading |
| ROCKHOPPER EXPLORATION (PETROCHEMICALS) LIMITED | 05360110 | 10/03/2014 | 31/01/2022 | Not Trading |
| ROCKHOPPER EXPLORATION PLC | 05250250 | 10/03/2014 | 31/01/2022 | Silver |
| ROCKHOPPER MEDITERRANEAN LIMITED | 05323487 | 11/08/2014 | 31/01/2022 | Silver |
| ROCKHOPPER RESOURCES LIMITED | 03010287 | 10/03/2014 | 31/01/2022 | Not Trading |
| UNITED OIL & GAS PLC | 09624969 | 11/03/2020 | 27/08/2020 | Silver |