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Subject: JACOS, Inpex, Tañon Strait, Energy in Iraq
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Japan Petroleum Exploration Company Limited
Type Public company KK (TYO: 1662)
Industry Hydrocarbon exploration, production
Founded 1955
Headquarters Tokyo, Japan
Area served Worldwide
Key people Yuji Tanahasi, President & CEO / Hiroshi Sato, Senior Managing Director
Revenue Increase¥ 230,638 million JPY (FY 2012)
Operating income Increase¥ 15,045 million JPY (FY 2012)
Net income Increase¥ 17,027 million JPY (FY 2012)
Employees 1,743[1]

Japan Petroleum Exploration Company Limited (JAPEX) (石油資源開発株式会社 Sekiyu Shigen Kaihatsu Kabushiki-Kaisha) is a hydrocarbon exploration, production and transportation company. JAPEX explores and produces crude oil, natural gas and liquefied natural gas reserves worldwide. JAPEX has proven reserves of 272 million barrels in Japan and the rest of the world. Aside from operations in Hokkaido, Akita, Yamagata and Niigata in Japan, JAPEX has major operations in Canada, Indonesia and Libya. Although currently a private company, the Government of Japan owns a 34% stake in JAPEX.[2]


JAPEX was founded in 1955 as a government-owned company in order to seek petroleum self-sufficiency for Japan. Between 1958 and 1968, JAPEX discovered 10 [3]

In 1971, Japex Offshore Ltd. was created, spurring international and offshore exploration and production. In 1978, Japan Canada Oil Sands Limited (JACOS) was established. From 1980–2006, JAPEX would establish Japex U.S. Corps, Japex New Nanhai Ltd., Japex Pipeline Ltd., Shirone Gas Corp. Ltd., Japex Libya Ltd., Japex Block A Ltd., Japex Philippines Ltd. and Japex Buton Ltd. Between 1985 and 2005, JAPEX opened offices in Beijing, London, Jakarta, Houston and Dubai as well.[3]


JAPEX’s exploration and production operations in Japan primarily center on Niigata, Akita, and Hokkaido. Overseas, JAPEX is focused on Southeast Asia, Canada, North Africa, the Middle East, and Sakhalin in Russia. In 2007, JAPEX produces 132 thousand barrels of oil equivalent a day; 100 thousand overseas and 32 thousand domestically.[3]

Domestically, JAPEX conducts exploration and production near existing reserves while also exploring other areas of Japan. JAPEX is also working on systems to supply more natural gas and liquefied natural gas to a broader base of customers in Japan. JAPEX is currently extending and upgrading an already 826 km natural gas pipeline.[3]

Overseas, JAPEX works to acquire the rights to already discovered oilfields and to acquire exploration rights in order to find additional oil reserves. JAPEX is involved in projects within the United States, Russia (Sakhalin Islands), Indonesia, Canada, Iran, Libya and had negotiated for Iraq's oil reserves as well.[3]


  1. ^ "JAPEX Annual Report 2012". JAPEX. Retrieved 9 April 2013. 
  2. ^ Japan Petroleum Exploration Co. Ltd. Company Profile
  3. ^ a b c d e JAPEX History and Information
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