Subsidiaries & Affiliates

Overseas Business

Exploration, development and production, etc.

INPEX MASELA, Ltd.

  • Exploration and development of oil and natural gas in the Masela Block in the Arafura Sea, Indonesia

Proportion of Voting Rights※1:51.93%

INPEX South Makassar, Ltd.

  • Exploration, development, production and sales of oil and natural gas in the Sebuku Block in the Makassar Strait, Indonesia

Proportion of Voting Rights※1:100.00%

INPEX Con Son, Ltd.

  • Exploration, development, production and sales of oil and gas in Blocks 05-1b and 1c in offshore southern Vietnam

Proportion of Voting Rights※1:100.00%

INPEX Browse E&P Pty Ltd

  • Exploration of oil and natural gas in the WA-285-P Block and others, Australia

Proportion of Voting Rights※1:100.00%(100.00%※2

INPEX Browse, Ltd.

  • Supply of business capital, etc. to oil and natural gas exploration and development in the WA-285-P Block and others, Australia

Proportion of Voting Rights※1:100.00%

INPEX Holdings Australia Pty Ltd

  • Supply of business capital, etc. to oil and natural gas exploration, development and construction of the LNG plant for the Ichthys LNG project, Australia

Proportion of Voting Rights※1:100.00%(100.00%※2

INPEX Ichthys Pty Ltd

  • Exploration and development of oil and natural gas in the Ichthys Gas-Condensate Field (WA-50-L/WA-51-L), Australia

Proportion of Voting Rights※1:100.00%(100.00%※2

INPEX Oil & Gas Australia Pty Ltd

  • Exploration and development of oil and natural gas in the Prelude Gas Field (WA-44-L) and others, Australia

Proportion of Voting Rights※1:100.00%

INPEX Sahul, Ltd.

  • Exploration, development, production and sales of oil and natural gas in the PSC TL-SO-T 19-12 Block in East Timor

Proportion of Voting Rights※1:100.00%

INPEX Alpha, Ltd.

  • Exploration, development, production and sales of oil and natural gas in the WA-35-L Block and others, Australia

Proportion of Voting Rights※1:100.00%

INPEX Southwest Caspian Sea, Ltd.

  • Exploration, development, production and sales of oil in the ACG Oil Fields, Azerbaijan

Proportion of Voting Rights※1:51.00%

INPEX North Caspian Sea, Ltd.

  • Exploration, development, production and sales of oil in the Offshore North Caspian Sea Block, Kazakhstan

Proportion of Voting Rights※1:51.00%

INPEX Norway Co., Ltd.

  • Supply of business capital, etc. to exploration, development, production and sales of oil in the Snorre Oil Field and others in Kingdom of Norway

Proportion of Voting Rights※1:50.51%

INPEX Idemitsu Norge AS

  • Exploration, development, production and sales of oil in the Snorre Oil Field and others in Kingdom of Norway

Proportion of Voting Rights※1:100.00%(100.00%※2

Japan Oil Development Co., Ltd.

  • Exploration, development, production and sales of oil in the Upper Zakum, Satah and Umm Al Dalkh oil fields, Offshore Abu Dhabi, United Arab Emirates

Proportion of Voting Rights※1:100.00%

JODCO Exploration Limited

  • Exploration of oil in four of the Block in onshore Abu Dhabi, United Arab Emirates

Proportion of Voting Rights※1:51.00%

JODCO Onshore Limited

  • Exploration, development, production and sales of oil in the ADCO Block in onshore Abu Dhabi, United Arab Emirates

Proportion of Voting Rights※1:65.76%

JODCO Lower Zakum Limited

  • Exploration, development, production and sales of oil in the Lower Zakum Oil Field Offshore Abu Dhabi, United Arab Emirates

Proportion of Voting Rights※1:100.00%

INPEX Americas, Inc.

  • Supply of business capital, etc. to exploration, development, production and sales of oil and natural gas in the U.S.

Proportion of Voting Rights※1:100.00%

INPEX Gas British Columbia Ltd.

  • Exploration, development, production and sales of natural gas in the shale gas blocks of the Horn River, Cordova and Liard basins in British Columbia, Canada

Proportion of Voting Rights※1:45.09%

Transportation, liquefaction, refining and sales, etc.

INPEX DLNGPL PTY Ltd

  • Investment in Darwin LNG Pty Ltd, which constructs and operates the undersea pipeline and LNG plant connecting the Bayu Undan Gas-Condensate Field and Darwin (Australia)

Proportion of Voting Rights※1:100.00%

INPEX BTC Pipeline, Ltd.

  • Investment in the pipeline construction and management business that connects Baku (Azerbaijan), Tbilisi (Georgia) and Ceyhan (Turkey)

Proportion of Voting Rights※1:100.00%

Power generation, drilling and civil engineering, etc.

INPEX Europe Limited

  • Development and management of offshore wind power projects in Europe

Proportion of Voting Rights※1:100.00%

INPEX Geothermal Sarulla, Ltd.

  • Supply of business capital, etc. to geothermal power project in Sarulla Geothermal Field, Indonesia

Proportion of Voting Rights※1:100.00%

Others

INPEX FINANCIAL SERVICES SINGAPORE PTE. LTD.

  • The Group's intercompany finance operations and support for financial administration of projects

Proportion of Voting Rights※1:100.00%

38 other subsidiaries

Equity-Method Affiliates, Subsidiaries of Equity-Method Affiliates

MI Berau B.V.

  • Exploration, development, production and sales of natural gas in the Berau Block and the Tangguh LNG Project, West Papua province, Indonesia

Proportion of Voting Rights※1:44.00%

Ichthys LNG Pty Ltd

  • Engaged in laying the undersea pipeline from the Ichthys Gas-Condensate Field to the Darwin Onshore LNG Plant and building the LNG plant, Australia

Proportion of Voting Rights※1:66.25%(66.25%※2

Japan South Sakha Oil Co., Ltd.

  • Supply of business capital for exploration, development, production and sales of oil in ZapadnoYaraktinsky and Bolshetirsky blocks, Russia

Proportion of Voting Rights※1:25.00%

PT Medco Geopower Sarulla

  • Supply of business capital, etc. to geothermal power project in Sarulla Geothermal Field, Indonesia

Proportion of Voting Rights※1:49.00%(49.00%※2

PT. Supreme Energy Sumatera

  • Supply of business capital, etc. to geothermal power project in Muara Laboh Geothermal Block, Indonesia

Proportion of Voting Rights※1:33.33%(33.33%※2

PT. Supreme Rantau Dedap

  • Development and management of geothermal power project in Rantau Dedap Geothermal Block, Indonesia

Proportion of Voting Rights※1:27.40%(27.40%※2

16 other subsidiaries

Domestic Business

INPEX DRILLING CO., LTD.

Geothermal production wells, crust activity observation wells, wells for hot springs, civil engineering

7nd Floor, Lucid Square Shinjuku East., 3-21, 1-Chome, Okubo, Shinjuku-Ku, Tokyo, Japan
TEL : 81-3-5292-1711

INPEX BUSINESS SERVICES, LTD.

Real estate rental, management and insurance agency services
Management of owned properties and facilities

Akasaka Biz Tower 5-3-1, Akasaka, Minato-ku, Tokyo 107-6332, Japan
TEL : 81-3-5572-0600

INPEX Logistics (Japan) Co., Ltd.

Process, storage, export and import, marketing and supplying of crude oil, natural gas Transportation of crude oil and petroleum products by lorries
Generation and Supply of Photovoltaic Power

935 Shibukakihama, Ogata-ku, Joetsu-shi, Niigata 949-3115, Japan
TEL : 81-25-534-5670

INPEX PIPELINE (JAPAN) CO., LTD

Natural gas transportation, pipeline operation, maintenance and management

6-2 Ookubo 1-chome, kashiwazaki-shi, Niigata 945-0851, Japan
TEL : 81-257-24-2143

Proportion of Voting Rights※1:100.00%

INPEX ENGINEERING (JAPAN) CO.,LTD

Maintenance services for INPEX CORPORATION oil and gas manufacturing facilities, natural gas pipelines and Naoetsu LNG Terminal

2-33-26 AmiGawara, Chuo-ku, Niigata-shi, Niigata 950-0964, Japan
TEL : 81-25-284-2311

INPEX Solutions, LTD.

Research, evaluation, business planning and consultation etc. in the fields of oil & gas, renewable energy and power, heat and water supply

Akasaka Biz Tower 5-3-1, Akasaka, Minato-ku, Tokyo 107-6332, Japan
TEL : 81-3-5572-0616

INPEX Offshore San-in Co., Ltd.

Exploration, development, production and sales of oil and natural gas in Offshore Shimane, Yamaguchi Prefectures in Japan

INPEX GEOTHERMAL, LTD.

Development and management of geothermal projects in Japan and overseas

Proportion of Voting Rights※1:100.00%

TELNITE CO., LTD.

Development, manufacture and sales of drilling fluid chemicals, treating chemicals cement additives and drilling fluid disposal chemicals for all kinds of well.

3-2-3, KandaJinbou-cho Chiyoda-Ku, Tokyo, 101-0051 Japan
TEL : 81-3-5843-0010

Next Energy Co., Ltd.

Sale of natural gas and surveys of natural gas market

2-19-10, Shimbashi Minato-Ku, Tokyo 105-0004, Japan
TEL : 81-3-3573-8201

Sakata Natural Gas Co., Ltd.

Supply and sale of city gas, electricity

4-5 Higashiohucho,Sakata-shi, Yamagata, 998-0831, Japan
TEL : 81-234-24-4111

Saitama Gas Co., Ltd.

Supply and sale of city gas, electricity

395-1 Isegata, Fukaya-shi, Saitama 366-0836, Japan
TEL : 81-48-571-1335

Proportion of Voting Rights※1:62.67%(13.17%※2

Minamifuji Pipeline Co., Ltd.

Gas pipeline business

1146-1 Tadehara Fuji-shi, Shizuoka 416-0931, Japan
TEL : 81-545-55-1211

Keiyo Pipeline Co., Ltd.

Transport to natural gas suppliers

3-14-1 Tuganodai,wakaba-ku, Chiba-shi, Chiba 264-0033 , Japan
TEL : 81-43-251-5259

INPEX SCHOLARSHIP FOUNDATION

Scholarships for Indonesian and Japanese students

34th floor, Akasaka Biz Tower 5-3-1, Akasaka, Minato-ku, Tokyo 107-6332, Japan
TEL : 81-3-5572-0602

※1 As of December 31,2022

※2 Values in parentheses in the column labeled “Voting rights(%)” indicate the ratio of indirectly held voting rights. These values are included in the total.