| CCLP | CSI Compressco LP |
| DNOW | NOW |
| DRQ | Dril-Quip |
| EFXT | Enerflex |
| FET | Forum Energy |
| GEOS | Geospace |
| KLXE | KLX Energy Services |
| LBRT | Liberty Energy |
| MRC | MRC Global |
| NGS | Natural Gas Services Group |
| NR | Newpark Resources |
| OIS | Oil States |
| PUMP | ProPetro |
| RNGR | Ranger Energy Services |
| SOI | Solaris Oilfield Infrastructure |
| VTOL | Bristow Group |