United States

Top 310 largest US Companies in the Energy sector by Market Cap

This is the list of the largest public listed companies in the Energy sector from the United States by market capitalization with links to their reference stock and industry.

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Top Energy Companies from the United States as of Jul. 01, 2025

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Rank Company Market Cap (USD) Country Sector Industry
1 Exxon Mobil Corporation $484.51 B United States US Energy US Oil & Gas Integrated
2 Chevron Corporation $257.01 B United States US Energy US Oil & Gas Integrated
3 ConocoPhillips $118.26 B United States US Energy US Oil & Gas E&P
4 The Williams Companies, Inc. $72.21 B United States US Energy US Oil & Gas Midstream
5 Enterprise Products Partners L.P. $68.34 B United States US Energy US Oil & Gas Midstream
6 EOG Resources, Inc. $67.07 B United States US Energy US Oil & Gas E&P
7 Kinder Morgan, Inc. $63.35 B United States US Energy US Oil & Gas Midstream
8 Energy Transfer LP $61.67 B United States US Energy US Oil & Gas Midstream
9 Marathon Petroleum Corporation $53.60 B United States US Energy US Oil & Gas Refining & Marketing
10 Pioneer Natural Resources Company $53.57 B

(Jan. 1, 2024)

 United States US Energy US Oil & Gas E&P
11 Cheniere Energy, Inc. $53.29 B United States US Energy US Oil & Gas Midstream
12 MPLX LP $52.11 B United States US Energy US Oil & Gas Midstream
13 Phillips 66 $51.52 B United States US Energy US Oil & Gas Refining & Marketing
14 ONEOK, Inc. $51.31 B United States US Energy US Oil & Gas Midstream
15 Schlumberger Limited $48.16 B United States US Energy US Oil & Gas Equipment & Services
16 Valero Energy Corporation $44.49 B United States US Energy US Oil & Gas Refining & Marketing
17 Hess Corporation $44.39 B United States US Energy US Oil & Gas E&P
18 Occidental Petroleum Corporation $43.23 B United States US Energy US Oil & Gas E&P
19 Diamondback Energy, Inc. $41.17 B United States US Energy US Oil & Gas E&P
20 Baker Hughes Company $39.46 B United States US Energy US Oil & Gas Equipment & Services
21 Targa Resources Corp. $37.70 B United States US Energy US Oil & Gas Midstream
22 EQT Corporation $33.61 B United States US Energy US Oil & Gas E&P
23 Cheniere Energy Partners, L.P. $27.02 B United States US Energy US Oil & Gas Midstream
24 Texas Pacific Land Corp $24.97 B United States US Energy US Oil & Gas E&P
25 Texas Pacific Land Corporation $24.64 B United States US Energy US Oil & Gas E&P
26 Devon Energy Corporation $21.45 B United States US Energy US Oil & Gas E&P
27 Coterra Energy Inc. $19.24 B

(July 1, 2023)

 United States US Energy US Oil & Gas E&P
28 Contura Energy, Inc. $19.10 B United States US Energy US Thermal Coal
29 Halliburton Company $18.50 B United States US Energy US Oil & Gas Equipment & Services
30 Marathon Oil Corporation $16.10 B

(July 1, 2024)

 United States US Energy US Oil & Gas E&P

Top Energy Companies from the United States as of Jul. 01, 2025

1. ExxonMobil

Company Profile: Exxon Mobil Corporation
Market Cap (USD): $484.51 B
Country: United States
Sector: US Energy
Industry: US Oil & Gas Integrated

2. Chevron

Company Profile: Chevron Corporation
Market Cap (USD): $257.01 B
Country: United States
Sector: US Energy
Industry: US Oil & Gas Integrated

3. ConocoPhillips

Company Profile: ConocoPhillips
Market Cap (USD): $118.26 B
Country: United States
Sector: US Energy
Industry: US Oil & Gas E&P

4. The Williams Companies, Inc.

Company Profile: The Williams Companies, Inc.
Market Cap (USD): $72.21 B
Country: United States
Sector: US Energy
Industry: US Oil & Gas Midstream

5. Enterprise Products Partners L.P.

Company Profile: Enterprise Products Partners L.P.
Market Cap (USD): $68.34 B
Country: United States
Sector: US Energy
Industry: US Oil & Gas Midstream

6. EOG Resources, Inc.

Company Profile: EOG Resources, Inc.
Market Cap (USD): $67.07 B
Country: United States
Sector: US Energy
Industry: US Oil & Gas E&P

7. Kinder Morgan, Inc.

Company Profile: Kinder Morgan, Inc.
Market Cap (USD): $63.35 B
Country: United States
Sector: US Energy
Industry: US Oil & Gas Midstream

8. Energy Transfer LP

Company Profile: Energy Transfer LP
Market Cap (USD): $61.67 B
Country: United States
Sector: US Energy
Industry: US Oil & Gas Midstream

9. Marathon Petroleum Corporation

Company Profile: Marathon Petroleum Corporation
Market Cap (USD): $53.60 B
Country: United States
Sector: US Energy
Industry: US Oil & Gas Refining & Marketing

10. Pioneer Natural Resources Company

Company Profile: Pioneer Natural Resources Company
Market Cap (USD): $53.57 B (Jan. 1, 2024)
Country: United States
Sector: US Energy
Industry: US Oil & Gas E&P

11. Cheniere Energy, Inc.

Company Profile: Cheniere Energy, Inc.
Market Cap (USD): $53.29 B
Country: United States
Sector: US Energy
Industry: US Oil & Gas Midstream

12. MPLX LP

Company Profile: MPLX LP
Market Cap (USD): $52.11 B
Country: United States
Sector: US Energy
Industry: US Oil & Gas Midstream

13. Phillips 66

Company Profile: Phillips 66
Market Cap (USD): $51.52 B
Country: United States
Sector: US Energy
Industry: US Oil & Gas Refining & Marketing

14. ONEOK, Inc.

Company Profile: ONEOK, Inc.
Market Cap (USD): $51.31 B
Country: United States
Sector: US Energy
Industry: US Oil & Gas Midstream

15. Schlumberger Limited

Company Profile: Schlumberger Limited
Market Cap (USD): $48.16 B
Country: United States
Sector: US Energy
Industry: US Oil & Gas Equipment & Services

16. Valero Energy Corporation

Company Profile: Valero Energy Corporation
Market Cap (USD): $44.49 B
Country: United States
Sector: US Energy
Industry: US Oil & Gas Refining & Marketing

17. Hess Corporation

Company Profile: Hess Corporation
Market Cap (USD): $44.39 B
Country: United States
Sector: US Energy
Industry: US Oil & Gas E&P

18. Occidental Petroleum Corporation

Company Profile: Occidental Petroleum Corporation
Market Cap (USD): $43.23 B
Country: United States
Sector: US Energy
Industry: US Oil & Gas E&P

19. Diamondback Energy, Inc.

Company Profile: Diamondback Energy, Inc.
Market Cap (USD): $41.17 B
Country: United States
Sector: US Energy
Industry: US Oil & Gas E&P

20. Baker Hughes Company

Company Profile: Baker Hughes Company
Market Cap (USD): $39.46 B
Country: United States
Sector: US Energy
Industry: US Oil & Gas Equipment & Services

21. Targa Resources Corp.

Company Profile: Targa Resources Corp.
Market Cap (USD): $37.70 B
Country: United States
Sector: US Energy
Industry: US Oil & Gas Midstream

22. EQT Corporation

Company Profile: EQT Corporation
Market Cap (USD): $33.61 B
Country: United States
Sector: US Energy
Industry: US Oil & Gas E&P

23. Cheniere Energy Partners, L.P.

Company Profile: Cheniere Energy Partners, L.P.
Market Cap (USD): $27.02 B
Country: United States
Sector: US Energy
Industry: US Oil & Gas Midstream

24. Texas Pacific Land Corp

Company Profile: Texas Pacific Land Corp
Market Cap (USD): $24.97 B
Country: United States
Sector: US Energy
Industry: US Oil & Gas E&P

25. Texas Pacific Land Corporation

Company Profile: Texas Pacific Land Corporation
Market Cap (USD): $24.64 B
Country: United States
Sector: US Energy
Industry: US Oil & Gas E&P

26. Devon Energy Corporation

Company Profile: Devon Energy Corporation
Market Cap (USD): $21.45 B
Country: United States
Sector: US Energy
Industry: US Oil & Gas E&P

27. Coterra Energy Inc.

Company Profile: Coterra Energy Inc.
Market Cap (USD): $19.24 B (July 1, 2023)
Country: United States
Sector: US Energy
Industry: US Oil & Gas E&P

28. Contura Energy, Inc.

Company Profile: Contura Energy, Inc.
Market Cap (USD): $19.10 B
Country: United States
Sector: US Energy
Industry: US Thermal Coal

29. Halliburton Company

Company Profile: Halliburton Company
Market Cap (USD): $18.50 B
Country: United States
Sector: US Energy
Industry: US Oil & Gas Equipment & Services

30. Marathon Oil Corporation

Company Profile: Marathon Oil Corporation
Market Cap (USD): $16.10 B (July 1, 2024)
Country: United States
Sector: US Energy
Industry: US Oil & Gas E&P

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