| Symbol | Name | Country | Exchange |
|---|---|---|---|
| ENQQF | Enteq Upstream Plc | US | OTC |
| TGSGY | TGS-NOPEC Geophysical Company ASA | US | OTC |
| JINDRILL | JINDAL DRILLING & INDUSTRIES LTD. | IN | BSE |
| 002278 | Shanghai SK Petroleum & Chemical Equipment Corp Ltd | CN | SHE |
| 603619 | Zhongman Petro & Natural Gas | CN | SHG |