| Symbol | Name | Country | Exchange |
|---|---|---|---|
| DEN | Denbury Inc. | US | NYSE |
| DALXF | Return Energy Inc | US | OTC |
| DNRRW | Denbury | US | OTC |
| DNRWW | Denbury Inc | US | OTC |
| EMBYF | Emerald Bay Energy I | US | OTC |
| HGTXU | Hugoton Royalty Trust | US | OTC |
| PNWRF | Valeura Energy Inc | US | OTC |
| VLE | Valeura Energy Inc. | CA | TSX |