| Symbol | Name | Country | Exchange |
|---|---|---|---|
| JPTXF | Japan Petroleum Exploration Co. Ltd | US | OTC |
| YZCFF | Sinopec Oilfield Service Corporation | US | OTC |
| NTQ | Enteq Upstream Plc | UK | LSE |
| JINDRILL | JINDAL DRILLING & INDUSTRIES LTD. | IN | BSE |
| 1033 | Sinopec Oilfield Service Corp | HK | HK |
| SLB | Schlumberger NV | FR | PA |
| 600871 | Sinopec Oilfield Service Corp | CN | SHG |
| 002278 | Shanghai SK Petroleum & Chemical Equipment Corp Ltd | CN | SHE |