投融資等Oil and Gas Exploration and ProductionNatural Gas Distribution and SalesPipeline TransportationOil Terminal OperationsIodine ProductionRenewable Diesel ProductionHydrogen ProductionAmmonia ProductionCarbon Capture and Storage (CCS)Renewable Energy DevelopmentDigital Strategy and InnovationTechnology Development and Innovation石油・天然ガスの調査・探鉱・開発・生産・販売その他の鉱物資源の調査・探鉱・開発・生産・販売
Begins water‑soluble gas development at the Minami Kanto Gas Field (Naruto Gas Field).
Begins water-soluble gas development at the Minami Kanto Gas Field (Naruto Gas Field).
南関東ガス田(成東ガス田)での水溶性ガス開発開始(昭和35年)
新潟~東京間に、国内初の長距離高圧天然ガス輸送パイプライン(東京ライン)完成
Completes Japan's first long-distance natural gas pipeline between Tokyo and Niigata Prefecture (Tokyo Line).
Completes Japan's first long‑distance natural gas pipeline between Tokyo and Niigata Prefecture (Tokyo Line).
新潟~東京間に、国内初の長距離高圧天然ガス輸送パイプライン(東京ライン)完成(昭和37年)
国際石油開発(株)の前身である北スマトラ海洋石油資源開発(株)設立
North Sumatra Offshore Petroleum Exploration Co., Ltd. (precursor to INPEX CORPORATION) is founded as a company promoting the independent development of overseas oil resources in accordance with a contract signed with PERMINA (now PERTAMINA).
国際石油開発(株)の前身である北スマトラ海洋石油資源開発(株)設立(昭和41年)
社名をインドネシア石油資源開発(株)に変更
(昭和42年)社名をインドネシア石油資源開発(株)に変更
社名をインドネシア石油資源開発(株)に変更(昭和42年)
インドネシア・マハカム沖でアタカ油田発見
インドネシアのマハカム沖のアタカ油田を発見。
(昭和45年)インドネシア・マハカム沖でアタカ油田発見
インドネシア・マハカム沖でアタカ油田発見(昭和45年)
ジャパン石油開発(株)(JODCO)設立
アラブ首長国連邦・ADMA鉱区(石油生産プロジェクト)の権益取得
Japan Oil Development Co., Ltd. (JODCO) is founded.
Acquires interests in the ADMA Block located offshore Abu Dhabi in the UAE.
Japan Oil Development Co., Ltd. (JODCO) is founded. Acquires interests in the ADMA Block located offshore Abu Dhabi in the UAE.
INPEX CORPORATION is founded through a merger of INPEX, Teikoku Oil and INPEX Holdings; headquarters moved to Akasaka, Tokyo.
INPEX CORPORATION is founded. INPEX CORPORATION is founded through a merger of INPEX, Teikoku Oil and INPEX Holdings. The company headquarters are moved to Akasaka, Tokyo.
The concession agreement for the ACG Oil Fields in Azerbaijan is extended.
(平成29年)アゼルバイジャン・カスピ海ACG鉱区権益期限25年延長
アゼルバイジャン・カスピ海ACG鉱区権益期限25年延長(平成29年)
アラブ首長国連邦下部ザクム油田の権益取得およびサター・ウムアダルク油田の権益期限延長
オーストラリア・イクシスLNGプロジェクト生産開始
オーストラリア・プレリュード FLNG プロジェクト生産開始
Acquires an interest in the Lower Zakum concession offshore Abu Dhabi.
The concession agreement for the Satah and Umm Al-Dalkh Oil Fields offshore Abu Dhabi is extended.
Begins production at the Ichthys LNG Project in Australia.
Production starts at the Prelude FLNG Project.
Acquires an interest in the Lower Zakum concession offshore Abu Dhabi. The concession agreement for the Satah and Umm Al-Dalkh Oil Fields offshore Abu Dhabi is extended. Begins production at the Ichthys LNG Project in Australia. Production starts at the Prelude FLNG Project.
Acquires an interest in the Lower Zakum concession offshore Abu Dhabi, extends the concession agreement for the Satah and Umm Al‑Dalkh Oil Fields offshore Abu Dhabi, begins production at the Ichthys LNG Project in Australia, and starts production at the Prelude FLNG Project.
Acquires an interest in the Lower Zakum concession offshore Abu Dhabi. The concession agreement for the Satah and Umm Al‑Dalkh Oil Fields offshore Abu Dhabi is extended. Begins production at the Ichthys LNG Project in Australia. Production starts at the Prelude FLNG Project.
Announces the formulation of the “Long-term Strategy and Medium-term Management Plan (INPEX Vision @2022).” Joins the Luchterduinen and Borssele III/IV offshore wind power projects in the Netherlands.
イギリス・洋上風力発電プロジェクト(モーレイイースト)への参入
Joins the Moray East offshore wind power project in the UK.
(令和5年)イギリス・洋上風力発電プロジェクト(モーレイイースト)への参入
イギリス・洋上風力発電プロジェクト(モーレイイースト)への参入(令和5年)
「INPEX Vision 2035」発表
Announces the formulation of the “INPEX Vision 2035.”
The J-Credit Certification Committee certified 936 t-CO₂ of credits generated by the Numata City Forest Culture City Project at its September 29, 2026 meeting. The project earns credits through the appropriate management of forests owned by Numata City and is based on a partnership among Numata City, two forestry associations, and INPEX.
INPEX has begun ammonia production and supply at Kashiwazaki Hydrogen Park as part of an integrated blue hydrogen and ammonia demonstration project in Niigata, Japan. The project includes hydrogen/ammonia production, CO₂ recovery, and CCUS, with evaluation of CO₂ storage potential in depleted oil and gas fields, and is subsidized by NEDO and conducted in joint research with JOGMEC. The initiative runs from fiscal 2022 through 2026, with operations planned to continue under INPEX’s own business initiative after the project period.