NIPPON OIL CORPORATION is a Japan-based supplier of petroleum products. The Company operates in four business segments. The Oil Refinement and Sales segment is engaged in the refinement and processing of petroleum products, as well as the manufacture and sale of petrochemical products. This segment is also engaged in the storage and transportation of its petroleum products, as well as the purchase and sale of coal and other mining products. The Petroleum and Natural Gas Development is engaged in the exploration and development of petroleum and natural gas. The Construction segment is involved in road construction and civil engineering works, as well as the design and construction of oil-related facilities. The Others segment is involved in the real estate, automobile-related and other businesses.