| HLX | Helix Energy Solutions Group |
| PUMP | ProPetro |
| GEOS | Geospace |
| NINE | Nine Energy Service |
| MRC | MRC Global |
| NOA | North American Construction Group |
| NR | NPK |
| LBRT | Liberty Energy |
| KLXE | KLX Energy Services |
| ACDC | ProFrac |
| FTK | Flotek Industries |
| NGS | Natural Gas Services Group |
| RNGR | Ranger Energy Services |