| Symbol | Name | Country | Exchange |
|---|---|---|---|
| DOR | Doriemus Cdi 1:1 | AU | ASX |
| IGESF | Igas Energy Plc | US | OTC |
| ALBA | Alba Mineral Resources Plc | UK | LSE |
| ANGS | Angus Energy Plc | UK | LSE |
| IGAS | Igas Energy Plc | UK | LSE |
| PRIM | Primorus Investments Plc | UK | LSE |
| UKOG | UK Oil & Gas Investments | UK | LSE |