| Amount | Holding |
|---|---|
| 16.52% | Schlumberger Ltd |
| 16.11% | Baker Hughes Co Class A |
| 6.67% | TechnipFMC PLC |
| 5.42% | Cactus Inc Class A |
| 5.02% | Cheniere Energy Inc |
| 4.96% | Halliburton Co |
| 4.38% | Oceaneering International Inc |
| 4.24% | National Energy Services Reunited Corp |
| 3.61% | Dril-Quip Inc |
| 3.60% | Apergy Corp |