Japan

Top 4 largest Japanese Companies in the Oil & Gas E&P industry by Market Cap

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

Japan Oil & Gas E&P Industry Analysis
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Top Oil & Gas E&P Companies from Japan as of Jul. 01, 2025

Rank Company Market Cap (USD) Country Sector Industry
1 Mitsui & Co. Ltd $59.27 B Japan Japanese Energy Japanese Oil & Gas E&P
2 Inpex Corp $16.89 B Japan Japanese Energy Japanese Oil & Gas E&P
3 Japan Petroleum Exploration Co. Ltd $1.86 B Japan Japanese Energy Japanese Oil & Gas E&P
4 Fuji Oil Company Ltd $171.8 M Japan Japanese Energy Japanese Oil & Gas E&P

Top Oil & Gas E&P Companies from Japan as of Jul. 01, 2025

1. Mitsui & Co. Ltd

Company Profile: Mitsui & Co. Ltd
Market Cap (USD): $59.27 B
Country: Japan
Sector: Japanese Energy
Industry: Japanese Oil & Gas E&P

2. Inpex Corp

Company Profile: Inpex Corp
Market Cap (USD): $16.89 B
Country: Japan
Sector: Japanese Energy
Industry: Japanese Oil & Gas E&P

3. Japan Petroleum Exploration Co. Ltd

Company Profile: Japan Petroleum Exploration Co. Ltd
Market Cap (USD): $1.86 B
Country: Japan
Sector: Japanese Energy
Industry: Japanese Oil & Gas E&P

4. Fuji Oil Company Ltd

Company Profile: Fuji Oil Company Ltd
Market Cap (USD): $171.8 M
Country: Japan
Sector: Japanese Energy
Industry: Japanese Oil & Gas E&P

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