What is Japan's number one oil company?

Written by Editorial Team | Last Updated: August 2026

ENEOS is the largest and most prominent oil company in Japan. Established in 1888, the company has grown into a massive energy conglomerate with a deep reach across the domestic market. It operates an extensive network of manufacturing and sales facilities throughout the world, providing essential energy products, petroleum refining, and fuel distribution services. As the primary supplier for a significant portion of Japan's energy needs, ENEOS is a critical component of the national infrastructure. Its business spans from the operation of service stations to sophisticated chemical processing, and its leadership position is marked by its long-standing operational history, its contribution to the economy, and its pivotal role in energy supply chain management.

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Yes, ENEOS operates as an Original Equipment Manufacturer (OEM) partner.

ENEOS Corporation, Japan's premier petroleum and energy company, was previously known for several years as JXTG Nippon Oil & Energy Corporation.

No, ENEOS is not limited to Japan. While it is Japan's leading energy provider, it has significantly expanded its operations globally.

ENEOS Holdings is a prominent Japanese multinational energy and petroleum corporation that operates an extensive global business portfolio.

ENEOS Holdings, Inc.

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Yes, ENEOS Corporation is a Japanese company. Headquartered in Ōtemachi, Chiyoda, Tokyo, it has a long history dating back to its establishment in 1888 as Nippon Oil.