Japan Petroleum Exploration Co., Ltd., together with its subsidiaries, explores for, develops, produces, and sells oil, natural gas, and other energy resources in Japan and internationally.

The company operates 10 domestic oil and natural gas fields in onshore and offshore of Hokkaido, Akita, Yamagata, and Niigata prefectures.

It also owns and manages a natural gas pipeline network with a total length of approximately 800 kilometres.

In addition, the company is involved in well drilling and engineering contracting business; manufacturing and selling oil products; real estate management and insurance agency activities; sale and contracted transportation of crude oil; recycling of waste oil; and pipeline management and maintenance operations.

Further, it engages in the geophysical exploration work contracting and geophysical exploration technology development; geophysical logging and mud logging work contract; exploration, development, and production of tight oil, oil sands, and shale gas; purchase and sale of LNG, petroleum products, etc.; provision of industrial disaster prevention and security services; development of solar, wind, geothermal, biomass, and other renewable energy sources; supply of electric power; manufacture and sale of drilling mud preparations and mud; and operation and commissioning of natural power plants.

The company was founded in 1955 and is headquartered in Tokyo, Japan.