ENEOS Corporation is a Japan-based energy and petrochemicals company and a core operating subsidiary of ENEOS Holdings. Headquartered in Tokyo, it is Japan’s largest refiner and fuel marketer, operating a nationwide network under the ENEOS brand.
The company runs integrated refineries and petrochemical facilities that manufacture transportation fuels and a broad slate of chemical products. Its portfolio includes base petrochemicals such as olefins (e.g., ethylene and propylene) and aromatics (e.g., benzene, toluene, xylenes), as well as solvents, asphalt, base oils, and lubricants. ENEOS supplies key feedstocks to downstream chemical producers in Japan and across Asia, supported by extensive trading, logistics, and storage operations.
ENEOS engages in research and operational initiatives aimed at improving process efficiency and reducing emissions, and it is active in areas such as advanced lubricants and lower‑carbon energy pathways, including hydrogen and biofuels. The company’s scale and integration make it a significant player in regional chemical value chains from refining through petrochemical intermediates.
