World

Top 370 largest Companies in the Oil & Gas E&P industry in the World by Market Cap

This is the list of the largest public listed companies in the Oil & Gas E&P industry in the world by market capitalization with links to their reference stock.

World Oil & Gas E&P Industry Analysis
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Top Oil & Gas E&P Companies in the World as of Jan. 01, 2026

Rank Company Market Cap (USD) Country Sector Industry
1 CNOOC Limited $134.32 B Hong Kong HK Energy HK Oil & Gas E&P
2 ConocoPhillips $120.77 B United States US Energy US Oil & Gas E&P
3 Mitsui & Co. Ltd $76.06 B Japan Japanese Energy Japanese Oil & Gas E&P
4 Canadian Natural Resources Limited $71.63 B Canada Canadian Energy Canadian Oil & Gas E&P
5 EOG Resources, Inc. $58.57 B United States US Energy US Oil & Gas E&P
6 Pioneer Natural Resources Company $53.57 B

(Jan. 1, 2024)

 United States US Energy US Oil & Gas E&P
7 Hess Corporation $44.39 B

(July 1, 2025)

 United States US Energy US Oil & Gas E&P
8 Diamondback Energy, Inc. $44.10 B United States US Energy US Oil & Gas E&P
9 Occidental Petroleum Corporation $41.75 B United States US Energy US Oil & Gas E&P
10 Novatek PJSC $39.99 B

(July 1, 2025)

 Russia Russian Energy Russian Oil & Gas E&P
11 Woodside Energy Group Ltd $36.80 B

(July 1, 2024)

 Australia Australian Energy Australian Oil & Gas E&P
12 EQT Corporation $33.36 B United States US Energy US Oil & Gas E&P
13 Inpex Corp $25.21 B Japan Japanese Energy Japanese Oil & Gas E&P
14 Devon Energy Corporation $24.04 B United States US Energy US Oil & Gas E&P
15 Texas Pacific Land Corporation $20.54 B United States US Energy US Oil & Gas E&P
16 Texas Pacific Land Corp $19.97 B United States US Energy US Oil & Gas E&P
17 Coterra Energy Inc. $19.24 B

(July 1, 2023)

 United States US Energy US Oil & Gas E&P
18 Tourmaline Oil Corp. $17.34 B Canada Canadian Energy Canadian Oil & Gas E&P
19 Santos Limited $17.23 B

(July 1, 2024)

 Australia Australian Energy Australian Oil & Gas E&P
20 Aker BP ASA $16.25 B

(July 1, 2024)

 Norway Norway Energy Norway Oil & Gas E&P
21 Marathon Oil Corporation $16.10 B

(July 1, 2024)

 United States US Energy US Oil & Gas E&P
22 PTT Exploration & Production PCL $13.42 B Thailand Thai Energy Thai Oil & Gas E&P
23 ARC Resources Ltd. $11.03 B Canada Canadian Energy Canadian Oil & Gas E&P
24 Chesapeake Energy Corp $10.79 B

(July 1, 2024)

 United States US Energy US Oil & Gas E&P
25 Antero Resources Corporation $10.57 B United States US Energy US Oil & Gas E&P
26 Whitecap Resources Inc. $10.51 B Canada Canadian Energy Canadian Oil & Gas E&P
27 Ovintiv Inc. $10.25 B United States US Energy US Oil & Gas E&P
28 Caspian Sunrise plc $9.99 B United Kingdom UK Energy UK Oil & Gas E&P
29 Apache Corporation $9.07 B United States US Energy US Oil & Gas E&P
30 APA Corp $8.68 B United States US Energy US Oil & Gas E&P

Top Oil & Gas E&P Companies in the World as of Jan. 01, 2026

1. CNOOC

Company Profile: CNOOC Limited
Market Cap (USD): $134.32 B
Country: Hong Kong
Sector: HK Energy
Industry: HK Oil & Gas E&P

2. ConocoPhillips

Company Profile: ConocoPhillips
Market Cap (USD): $120.77 B
Country: United States
Sector: US Energy
Industry: US Oil & Gas E&P

3. Mitsui & Co. Ltd

Company Profile: Mitsui & Co. Ltd
Market Cap (USD): $76.06 B
Country: Japan
Sector: Japanese Energy
Industry: Japanese Oil & Gas E&P

4. Canadian Natural Resources Limited

Company Profile: Canadian Natural Resources Limited
Market Cap (USD): $71.63 B
Country: Canada
Sector: Canadian Energy
Industry: Canadian Oil & Gas E&P

5. EOG Resources, Inc.

Company Profile: EOG Resources, Inc.
Market Cap (USD): $58.57 B
Country: United States
Sector: US Energy
Industry: US Oil & Gas E&P

6. 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

7. Hess Corporation

Company Profile: Hess Corporation
Market Cap (USD): $44.39 B (July 1, 2025)
Country: United States
Sector: US Energy
Industry: US Oil & Gas E&P

8. Diamondback Energy, Inc.

Company Profile: Diamondback Energy, Inc.
Market Cap (USD): $44.10 B
Country: United States
Sector: US Energy
Industry: US Oil & Gas E&P

9. Occidental Petroleum Corporation

Company Profile: Occidental Petroleum Corporation
Market Cap (USD): $41.75 B
Country: United States
Sector: US Energy
Industry: US Oil & Gas E&P

10. Novatek PJSC

Company Profile: Novatek PJSC
Market Cap (USD): $39.99 B (July 1, 2025)
Country: Russia
Sector: Russian Energy
Industry: Russian Oil & Gas E&P

11. Woodside Energy Group Ltd

Company Profile: Woodside Energy Group Ltd
Market Cap (USD): $36.80 B (July 1, 2024)
Country: Australia
Sector: Australian Energy
Industry: Australian Oil & Gas E&P

12. EQT Corporation

Company Profile: EQT Corporation
Market Cap (USD): $33.36 B
Country: United States
Sector: US Energy
Industry: US Oil & Gas E&P

13. Inpex Corp

Company Profile: Inpex Corp
Market Cap (USD): $25.21 B
Country: Japan
Sector: Japanese Energy
Industry: Japanese Oil & Gas E&P

14. Devon Energy Corporation

Company Profile: Devon Energy Corporation
Market Cap (USD): $24.04 B
Country: United States
Sector: US Energy
Industry: US Oil & Gas E&P

15. Texas Pacific Land Corporation

Company Profile: Texas Pacific Land Corporation
Market Cap (USD): $20.54 B
Country: United States
Sector: US Energy
Industry: US Oil & Gas E&P

16. Texas Pacific Land Corp

Company Profile: Texas Pacific Land Corp
Market Cap (USD): $19.97 B
Country: United States
Sector: US Energy
Industry: US Oil & Gas E&P

17. 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

18. Tourmaline Oil Corp.

Company Profile: Tourmaline Oil Corp.
Market Cap (USD): $17.34 B
Country: Canada
Sector: Canadian Energy
Industry: Canadian Oil & Gas E&P

19. Santos Limited

Company Profile: Santos Limited
Market Cap (USD): $17.23 B (July 1, 2024)
Country: Australia
Sector: Australian Energy
Industry: Australian Oil & Gas E&P

20. Aker BP ASA

Company Profile: Aker BP ASA
Market Cap (USD): $16.25 B (July 1, 2024)
Country: Norway
Sector: Norway Energy
Industry: Norway Oil & Gas E&P

21. 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

22. PTT Exploration & Production PCL

Company Profile: PTT Exploration & Production PCL
Market Cap (USD): $13.42 B
Country: Thailand
Sector: Thai Energy
Industry: Thai Oil & Gas E&P

23. ARC Resources Ltd.

Company Profile: ARC Resources Ltd.
Market Cap (USD): $11.03 B
Country: Canada
Sector: Canadian Energy
Industry: Canadian Oil & Gas E&P

24. Chesapeake Energy Corp

Company Profile: Chesapeake Energy Corp
Market Cap (USD): $10.79 B (July 1, 2024)
Country: United States
Sector: US Energy
Industry: US Oil & Gas E&P

25. Antero Resources Corporation

Company Profile: Antero Resources Corporation
Market Cap (USD): $10.57 B
Country: United States
Sector: US Energy
Industry: US Oil & Gas E&P

26. Whitecap Resources Inc.

Company Profile: Whitecap Resources Inc.
Market Cap (USD): $10.51 B
Country: Canada
Sector: Canadian Energy
Industry: Canadian Oil & Gas E&P

27. Ovintiv Inc.

Company Profile: Ovintiv Inc.
Market Cap (USD): $10.25 B
Country: United States
Sector: US Energy
Industry: US Oil & Gas E&P

28. Caspian Sunrise plc

Company Profile: Caspian Sunrise plc
Market Cap (USD): $9.99 B
Country: United Kingdom
Sector: UK Energy
Industry: UK Oil & Gas E&P

29. Apache Corporation

Company Profile: Apache Corporation
Market Cap (USD): $9.07 B
Country: United States
Sector: US Energy
Industry: US Oil & Gas E&P

30. APA Corp

Company Profile: APA Corp
Market Cap (USD): $8.68 B
Country: United States
Sector: US Energy
Industry: US Oil & Gas E&P

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