1. Altus Intervention AS
2. Archer
3. Baker Hughes Company
4. Basic Energy Services Inc.
5. Calfrac Well Services Ltd
6. Exxon Mobil Corporation
7. Helix Energy Solutions
8. Keane Group Inc.
9. Nine Energy Services
10. NOV Inc.
11. Oceaneering International Inc.
12. Omega Well Intervention Ltd
13. Pioneer Energy Services Corp.
14. Schlumberger Limited
15. Superior Energy Services Inc.
16. Technipfmc PLC
17. Weatherford International PLC
18. Welltec