| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| HORSE HILL DEVELOPMENTS LTD | 08808553 | 13/07/2015 | One Red Flag |
| UK ENERGY STORAGE LTD | 14108327 | 16/05/2022 | Bronze |
| UK GEOTHERMAL LTD | 13386906 | 11/05/2021 | Gold |
| UK OIL & GAS PLC | 05299925 | 08/07/2015 | Amber |
| UK ONSHORE OIL & GAS | 08257978 | 06/09/2016 | One Red Flag |
| UKEN HOLDING LIMITED | 14880485 | 19/05/2023 | Bronze |
| UKOG (137/246) HOLDINGS LTD | 09010542 | 10/09/2019 | Silver |
| UKOG (137/246) LTD | 06807023 | 10/09/2019 | Amber |
| UKOG (234) LTD | 07055133 | 11/08/2016 | Amber |
| UKOG (GB) LIMITED | 04050227 | 08/07/2015 | Gold |
| UKOG SOLENT LIMITED | 05000092 | 08/07/2015 | Dissolved |
| UKOG TURKEY LTD | 10212262 | 02/06/2016 | Amber |
| UKOG WEALD LIMITED | 04991234 | 08/07/2015 | Dissolved |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|