| Symbol | Name | Country | Exchange |
|---|---|---|---|
| PDS | Precision Drilling Corporation | US | NYSE |
| RES | RPC, Inc. | US | NYSE |
| HGHAF | High Arctic Energy Services Inc | US | OTC |
| KEGX | Key Energy Services Inc | US | OTC |
| HWO | High Arctic Energy Services Inc. | CA | TSX |
| PD | Precision Drilling Corporation | CA | TSX |
| 000852 | Sinopec Oilfield Equipment Corp | CN | SHE |