| Symbol | Name | Country | Exchange |
|---|---|---|---|
| ADME | ADM Energy Plc | UK | LSE |
| AEX | Aminex Plc | UK | LSE |
| AST | Ascent Resources Plc | UK | LSE |
| BOR | Borders & Southern Petroleum Plc | UK | LSE |
| BWRA | Bristol Water Plc | UK | LSE |
| HUR | Hurricane Energy Plc | UK | LSE |
| SENX | Serinus Energy Plc | UK | LSE |
| UJO | Union Jack Oil Plc | UK | LSE |
| UPL | Upland Resources Limited | UK | LSE |
| UU | United Utilities | UK | LSE |