| CCLP | CSI Compressco LP |
| CHX | ChampionX |
| DRQ | Dril-Quip |
| EFXT | Enerflex |
| FET | Forum Energy |
| FTI | TechnipFMC |
| LBRT | Liberty Energy |
| NGS | Natural Gas Services Group |
| NOV | NOV |
| RES | RPC |
| RNGR | Ranger Energy Services |
| VAL | Valaris |
| VTOL | Bristow Group |
| WFRD | Weatherford |
| XPRO | Expro Group |