Cosmo Energy Holdings Co., Ltd., through its subsidiaries, engages in the petroleum business in Japan and internationally. The company operates through four segments: Petroleum, Petrochemical, Oil Exploration and Production, and Renewable Energy. The Petroleum segment produces and sells gasoline, naphtha, kerosene, diesel, fuel oil, crude oil, lubricating oil, liquefied petroleum gas, and asphalt. The Petrochemical segment produces and sells ethylene, mixed xylene, paraxylene, benzene, toluene, and petrochemical. The Oil Exploration and Production segment develops, produces, and sells crude oil. The Renewable Energy segment supplies and sells electricity generated by wind power. Cosmo Energy Holdings Co., Ltd. was founded in 1986 and is headquartered in Tokyo, Japan.