United States

Top 60 largest US Companies in the Oil & Gas Equipment & Services industry by Market Cap

This is the list of the largest public listed companies in the Oil & Gas Equipment & Services industry from the United States by market capitalization with links to their reference stock.

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Top Oil & Gas Equipment & Services Companies from the United States as of Jan. 01, 2026

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Rank Company Market Cap (USD) Country Sector Industry
1 Schlumberger Limited $60.06 B United States US Energy US Oil & Gas Equipment & Services
2 Baker Hughes Company $46.52 B United States US Energy US Oil & Gas Equipment & Services
3 Halliburton Company $25.24 B United States US Energy US Oil & Gas Equipment & Services
4 NOV Inc. $6.09 B United States US Energy US Oil & Gas Equipment & Services
5 Weatherford International plc $5.81 B United States US Energy US Oil & Gas Equipment & Services
6 ChampionX Corporation $5.06 B

(July 1, 2025)

 United States US Energy US Oil & Gas Equipment & Services
7 Archrock, Inc. $4.67 B United States US Energy US Oil & Gas Equipment & Services
8 Cactus, Inc. $3.24 B United States US Energy US Oil & Gas Equipment & Services
9 Liberty Oilfield Services Inc. $3.06 B United States US Energy US Oil & Gas Equipment & Services
10 USA Compression Partners, LP $2.92 B United States US Energy US Oil & Gas Equipment & Services
11 Tidewater Inc. $2.59 B United States US Energy US Oil & Gas Equipment & Services
12 Oceaneering International, Inc. $2.49 B United States US Energy US Oil & Gas Equipment & Services
13 NOW Inc. $2.48 B United States US Energy US Oil & Gas Equipment & Services
14 NexTier Oilfield Solutions Inc. $2.36 B

(July 1, 2023)

 United States US Energy US Oil & Gas Equipment & Services
15 National Energy Services Reunited Corp. $1.59 B United States US Energy US Oil & Gas Equipment & Services
16 Select Energy Services, Inc. $1.34 B United States US Energy US Oil & Gas Equipment & Services
17 Solaris Oilfield Infrastructure, Inc. $1.33 B United States US Energy US Oil & Gas Equipment & Services
18 TETRA Technologies, Inc. $1.31 B United States US Energy US Oil & Gas Equipment & Services
19 RPC, Inc. $1.22 B United States US Energy US Oil & Gas Equipment & Services
20 U.S. Silica Holdings, Inc. $1.21 B

(July 1, 2024)

 United States US Energy US Oil & Gas Equipment & Services
21 MRC Global Inc. $1.13 B

(July 1, 2025)

 United States US Energy US Oil & Gas Equipment & Services
22 Bristow Group Inc. $1.08 B United States US Energy US Oil & Gas Equipment & Services
23 ProPetro Holding Corp. $1.02 B United States US Energy US Oil & Gas Equipment & Services
24 Newpark Resources, Inc. $1.02 B United States US Energy US Oil & Gas Equipment & Services
25 Helix Energy Solutions Group, Inc. $941.3 M United States US Energy US Oil & Gas Equipment & Services
26 Target Hospitality Corp. $808.2 M United States US Energy US Oil & Gas Equipment & Services
27 Dril-Quip, Inc. $783.3 M United States US Energy US Oil & Gas Equipment & Services
28 Boart Longyear Limited $568.4 M

(Jan. 1, 2024)

 United States US Energy US Oil & Gas Equipment & Services
29 Flotek Industries, Inc. $512.5 M United States US Energy US Oil & Gas Equipment & Services
30 Forum Energy Technologies, Inc. $455.4 M United States US Energy US Oil & Gas Equipment & Services

Top Oil & Gas Equipment & Services Companies from the United States as of Jan. 01, 2026

1. Schlumberger Limited

Company Profile: Schlumberger Limited
Market Cap (USD): $60.06 B
Country: United States
Sector: US Energy
Industry: US Oil & Gas Equipment & Services

2. Baker Hughes Company

Company Profile: Baker Hughes Company
Market Cap (USD): $46.52 B
Country: United States
Sector: US Energy
Industry: US Oil & Gas Equipment & Services

3. Halliburton Company

Company Profile: Halliburton Company
Market Cap (USD): $25.24 B
Country: United States
Sector: US Energy
Industry: US Oil & Gas Equipment & Services

4. NOV Inc.

Company Profile: NOV Inc.
Market Cap (USD): $6.09 B
Country: United States
Sector: US Energy
Industry: US Oil & Gas Equipment & Services

5. Weatherford International plc

Company Profile: Weatherford International plc
Market Cap (USD): $5.81 B
Country: United States
Sector: US Energy
Industry: US Oil & Gas Equipment & Services

6. ChampionX Corporation

Company Profile: ChampionX Corporation
Market Cap (USD): $5.06 B (July 1, 2025)
Country: United States
Sector: US Energy
Industry: US Oil & Gas Equipment & Services

7. Archrock, Inc.

Company Profile: Archrock, Inc.
Market Cap (USD): $4.67 B
Country: United States
Sector: US Energy
Industry: US Oil & Gas Equipment & Services

8. Cactus, Inc.

Company Profile: Cactus, Inc.
Market Cap (USD): $3.24 B
Country: United States
Sector: US Energy
Industry: US Oil & Gas Equipment & Services

9. Liberty Oilfield Services Inc.

Company Profile: Liberty Oilfield Services Inc.
Market Cap (USD): $3.06 B
Country: United States
Sector: US Energy
Industry: US Oil & Gas Equipment & Services

10. USA Compression Partners, LP

Company Profile: USA Compression Partners, LP
Market Cap (USD): $2.92 B
Country: United States
Sector: US Energy
Industry: US Oil & Gas Equipment & Services

11. Tidewater Inc.

Company Profile: Tidewater Inc.
Market Cap (USD): $2.59 B
Country: United States
Sector: US Energy
Industry: US Oil & Gas Equipment & Services

12. Oceaneering International, Inc.

Company Profile: Oceaneering International, Inc.
Market Cap (USD): $2.49 B
Country: United States
Sector: US Energy
Industry: US Oil & Gas Equipment & Services

13. NOW Inc.

Company Profile: NOW Inc.
Market Cap (USD): $2.48 B
Country: United States
Sector: US Energy
Industry: US Oil & Gas Equipment & Services

14. NexTier Oilfield Solutions Inc.

Company Profile: NexTier Oilfield Solutions Inc.
Market Cap (USD): $2.36 B (July 1, 2023)
Country: United States
Sector: US Energy
Industry: US Oil & Gas Equipment & Services

15. National Energy Services Reunited Corp.

Company Profile: National Energy Services Reunited Corp.
Market Cap (USD): $1.59 B
Country: United States
Sector: US Energy
Industry: US Oil & Gas Equipment & Services

16. Select Energy Services, Inc.

Company Profile: Select Energy Services, Inc.
Market Cap (USD): $1.34 B
Country: United States
Sector: US Energy
Industry: US Oil & Gas Equipment & Services

17. Solaris Oilfield Infrastructure, Inc.

Company Profile: Solaris Oilfield Infrastructure, Inc.
Market Cap (USD): $1.33 B
Country: United States
Sector: US Energy
Industry: US Oil & Gas Equipment & Services

18. TETRA Technologies, Inc.

Company Profile: TETRA Technologies, Inc.
Market Cap (USD): $1.31 B
Country: United States
Sector: US Energy
Industry: US Oil & Gas Equipment & Services

19. RPC, Inc.

Company Profile: RPC, Inc.
Market Cap (USD): $1.22 B
Country: United States
Sector: US Energy
Industry: US Oil & Gas Equipment & Services

20. U.S. Silica Holdings, Inc.

Company Profile: U.S. Silica Holdings, Inc.
Market Cap (USD): $1.21 B (July 1, 2024)
Country: United States
Sector: US Energy
Industry: US Oil & Gas Equipment & Services

21. MRC Global Inc.

Company Profile: MRC Global Inc.
Market Cap (USD): $1.13 B (July 1, 2025)
Country: United States
Sector: US Energy
Industry: US Oil & Gas Equipment & Services

22. Bristow Group Inc.

Company Profile: Bristow Group Inc.
Market Cap (USD): $1.08 B
Country: United States
Sector: US Energy
Industry: US Oil & Gas Equipment & Services

23. ProPetro Holding Corp.

Company Profile: ProPetro Holding Corp.
Market Cap (USD): $1.02 B
Country: United States
Sector: US Energy
Industry: US Oil & Gas Equipment & Services

24. Newpark Resources, Inc.

Company Profile: Newpark Resources, Inc.
Market Cap (USD): $1.02 B
Country: United States
Sector: US Energy
Industry: US Oil & Gas Equipment & Services

25. Helix Energy Solutions Group, Inc.

Company Profile: Helix Energy Solutions Group, Inc.
Market Cap (USD): $941.3 M
Country: United States
Sector: US Energy
Industry: US Oil & Gas Equipment & Services

26. Target Hospitality Corp.

Company Profile: Target Hospitality Corp.
Market Cap (USD): $808.2 M
Country: United States
Sector: US Energy
Industry: US Oil & Gas Equipment & Services

27. Dril-Quip, Inc.

Company Profile: Dril-Quip, Inc.
Market Cap (USD): $783.3 M
Country: United States
Sector: US Energy
Industry: US Oil & Gas Equipment & Services

28. Boart Longyear Limited

Company Profile: Boart Longyear Limited
Market Cap (USD): $568.4 M (Jan. 1, 2024)
Country: United States
Sector: US Energy
Industry: US Oil & Gas Equipment & Services

29. Flotek Industries, Inc.

Company Profile: Flotek Industries, Inc.
Market Cap (USD): $512.5 M
Country: United States
Sector: US Energy
Industry: US Oil & Gas Equipment & Services

30. Forum Energy Technologies, Inc.

Company Profile: Forum Energy Technologies, Inc.
Market Cap (USD): $455.4 M
Country: United States
Sector: US Energy
Industry: US Oil & Gas Equipment & Services

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