| DNOW | NOW |
| FTI | TechnipFMC |
| OII | Oceaneering |
| BKR | Baker Hughes Company |
| WHD | Cactus |
| XPRO | Expro Group |
| WFRD | Weatherford |
| SOI | Solaris Oilfield Infrastructure |
| PUMP | ProPetro |
| GEOS | Geospace |
| SLCA | U.S. Silica |
| NEX | NexTier Oilfield Solutions |
| CHX | ChampionX |
| TDW | Tidewater |
| RNGR | Ranger Energy Services |