1605 on Tokyo Stock Exchange
Inpex
Logo: Public domain, via Wikimedia Commons4
Japanese oil company
INPEX Corporation is a Japanese oil company established in February 1966 as North Sumatra Offshore Petroleum Exploration Co., Ltd. INPEX is the largest oil and gas exploration and production company in Japan, with global exploration, development and production projects in 20 countries. In the 2020 Forbes Global 2000, INPEX was ranked as the 597th-largest public company in the world.2 Its shares trade on Tokyo Stock Exchange under the symbol 1605.1 Wikipedia text CC BY-SA 4.0
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Last updated Oct 21, 2026.
Overview
- Ticker1605 on Tokyo Stock Exchange1
- Industrypetroleum industry1
- HeadquartersTokyo1
- Websitewww.inpex.co.jp
- Legal formkabushiki gaisha1
- LEI353800VHYYADPR6MXQ473
- StatusActive3
- LEI statusIssued and current3
- Registered address赤坂五丁目3番1号, 107-6332 東京都 港区, Japan3
- Registered withLegal Affairs Bureau, 0104-01-0785203
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INPEX Corporation is a Japanese oil company established in February 1966 as North Sumatra Offshore Petroleum Exploration Co., Ltd. INPEX is the largest oil and gas exploration and production company in Japan, with global exploration, development and production projects in 20 countries. In the 2020 Forbes Global 2000, INPEX was ranked as the 597th-largest public company in the world.2
Corporate structure
Inpex sits at the top of its group. 5 entities, 4 countries on record. Switch between the flow chart and the network, and select any entity to see its details.
- Inpex 東京都 港区, Japan
- INPEX ICHTHYS PTY LTD Subsidiary · 100% · Perth, Australia
- INPEX IDEMITSU NORGE AS Subsidiary · 50% · Lysaker, Norway
- INPEX Eagle Ford, LLC Subsidiary · Houston, Texas, United States
- 株式会社INPEX JAPAN Subsidiary · 東京都 港区, Japan
Built from parent and subsidiary links from GLEIF, the Global Legal Entity Identifier Foundation (CC0). Each entity in the chart links to its source.
Products and brands
The main focus of the company's operations in Japan is the Minami-Nagaoka Gas Field in Niigata Prefecture. INPEX also operates the Naoetsu LNG receiving terminal in Niigata and a natural gas pipeline network of approximately 1,500 km to connect to gas customers within Japan.
From Wikipedia’s article on Inpex, shared under CC BY-SA 4.0.5
Acquisitions
As a result of a government-orchestrated merger, INPEX Corporation and Teikoku Oil agree to form INPEX Holdings on April 3, 2006. On October 1, 2008, the merger was completed with Inpex Corporation being formed from INPEX Holdings, INPEX, and Teikoku Oil, and the headquarters were moved to Akasaka, Tokyo.
The Mahakam Bloc, the original INPEX's first site, was nationalized by the Government of Indonesia in 2018, and is currently operated by Pertamina.
Teikoku Oil
Teikoku Oil Company Ltd was founded as a semi-governmental company to unify the existing Japanese oil exploration companies in 1941.
1950 Commerced development at Yabase oil field, Akita, Japan
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1959 Kubiki oil and gas field commenced production
1962 Completed Japan's first long-distance natural gas pipeline between Tokyo and Niigata Prefecture
1965 Completed development at Minami-Aga oil field
1970 Higashi-Kashiwazaki gas field commenced production
1975 Completed development of overseas project at Democratic Republic of Congo
1980 West Bakr block of Egypt commenced production (sold in 2012 after cumulative production of approximately 50 million barrels of oil)
From Wikipedia’s article on Inpex, shared under CC BY-SA 4.0.5
Timeline
- 2006Founded Founded1
Links
- Websitewww.inpex.co.jp1
- WikipediaInpex
- More imagesWikimedia Commons
- WikidataQ1654229
Sources
The numbers on this page point here. Each one links to the record it came from.
- 1WikidataInpex on Wikidata
- 2WikipediaInpex on Wikipedia
- 3
- 4Wikimedia CommonsInpex logo by unknown, Public domain
- 5WikipediaInpex on Wikipedia (revision used)
- 6Wikimedia CommonsInpex photo by Rs1421, CC BY-SA 3.0