1966

• North Sumatra Offshore Petroleum Exploration Co., Ltd. (precursor to INPEX CORPORATION), is founded.

as a corporation promoting the independentdevelopment of overseas oil resources in accordance with a contract signed with PERMINA (now PERTAMINA).

1970

Attaka Field is discovered in Offshore Mahakam (Indonesia).

1973

• Japan Oil Development Co., Ltd. (JODCO), is founded.
• Acquires interests in the ADMA Block located offshore Abu Dhabi in UAE.

1977

Corporate name is changed to Indonesia Petroleum, Ltd.　(Japanese Corporate name is changed in 1975)

1998

Acquires interests in the Offshore North Caspian Block, Kazakhstan; Permit WA 285-P, offshore Australia; and the Masela Block, Indonesia

2000

Discovers the Kashagan, Ichthys and Abadi fields.

2001

Changed corporate name to INPEX CORPORATION

2004

• Acquisition of Japan Oil Development Co., Ltd. (JODCO).
• Listing on the First Section of the Tokyo Stock Exchange.

2005

Production starts in the ACG Oil Field in Azerbaijan.

1941

• Teikoku Oil Co., Ltd., is　founded.

as a semi-governmental company　to unify the existing Japanese oil exploration companies at that time.

1950

Teikoku Oil becomes a private company.

1962

Japan’s first long-distance natural gas pipeline between Tokyo and Niigata Prefecture (Tokyo Line) is completed.

1979

The Minami Nagaoka Gas Field with Japan's largest reserve of natural gas is discovered in Niigata Prefecture.

1984

Production at Minami Nagaoka Gas Field begins with completion of the Koshijihara Gas Plant.

1992

Becomes the first Japanese company to participate in an oil development project in Venezuela.

2005

Exploration rights in the East China Sea are granted.