| NOA | North American Construction Group |
| DRQ | Dril-Quip |
| CCLP | CSI Compressco LP |
| WHD | Cactus |
| OIS | Oil States |
| XPRO | Expro Group |
| SOI | Solaris Oilfield Infrastructure |
| GEOS | Geospace |
| EFXT | Enerflex |
| NGS | Natural Gas Services Group |
| NOV | NOV |
| CHX | ChampionX |
| RNGR | Ranger Energy Services |