Public Relations Group, Corporate Communications Unit
Akasaka Biz Tower, 5-3-1 Akasaka, Minato-ku, Tokyo 107-6332 JAPAN

December 13, 2018

INPEX Acquires Additional Participating Interest in Ichthys LNG ProjectTOKYO, JAPAN - INPEX CORPORATION (INPEX) announced today that it has reached anagreement with TOTAL to acquire a portion (4.0%) of the participating interest* held by
TOTAL in the INPEX-operated Ichthys LNG Project (the Project) through a TOTAL projectcompany, and increase its participating interest ratio for the Project from the current 62.245%
to 66.245%, etc. Completion of the acquisition is subject to the fulfillment of certain conditions,including approval by the Australian Government and pre-emption rights.
*Participating interest in the Project includes the following:
1. Stake in Block WA-50-L including the Ichthys Gas-condensate Field and Block WA-51-L
2. Stake in the Ichthys downstream entity (Ichthys LNG Pty Ltd) that owns infrastructure including the gas export
pipeline and onshore gas liquefaction plant and conducts LNG sales, etc.

The Project commenced shipment of condensate (ultra-light crude oil) on October 1, 2018
followed by liquefied natural gas (LNG) on October 22, 2018 and liquefied petroleum gas(LPG) on November 19, 2018. The Project is scheduled to gradually increase its production
volume of LNG, and produce approximately 8.9 million tons of LNG per year, equivalent tomore than 10% of Japan’s annual LNG import volume, when it reaches its production plateau.
As approximately 70% of the LNG produced by the Project is scheduled to be supplied toJapanese customers, INPEX will further contribute to the stable supply of energy to Japanthrough the Project and continue to respond to the energy demand in Asia and the rest of theworld.
The Project is a highly competitive one that is expected to generate stable revenue over thelong term. INPEX’s acquisition of additional participating interest in the Project is aligned tothe company’s pursuit of its business targets outlined in “Vision 2040” and “Medium-term
Business Plan 2018 - 2022” announced in May 2018.
INPEX will continue to work toward achieving stable production and an early ramp-up at theIchthys LNG Project with the understanding and cooperation of all its stakeholders, including
the project’s joint venture partners, the local communities, the Australian federal government
and the governments of Western Australia and the Northern Territory.
The impact of this matter on the company’s consolidated financial results is minimal.

About the Ichthys LNG Project
The Ichthys LNG Project is a project led by INPEX (Operator, participating interest: 62.245%)
alongside major partner TOTAL (participating interest: 30%) and the Australian subsidiariesof CPC Corporation, Taiwan (participating interest: 2.625%), Tokyo Gas (participatinginterest: 1.575%), Osaka Gas (participating interest: 1.2%), Kansai Electric Power(participating interest: 1.2%), JERA (participating interest: 0.735%) and Toho Gas(participating interest: 0.42%) that involves liquefying natural gas lifted from the Ichthys
Gas-condensate Field offshore Western Australia at an onshore gas liquefaction plant
constructed in Darwin, Northern Territory, and producing and shipping approximately 8.9
million tons of liquefied natural gas (LNG) and approximately 1.65 million tons of liquefied
petroleum gas (LPG) per year, along with approximately 100,000 barrels of condensate perday at peak. While the capital expenditure required for production start-up during the period
between the final investment decision (FID) and production start-up was projected to bearound $40 billion on a 100% project basis, this figure has risen several percent due tofactors including the delay in production start-up.
The Ichthys LNG Project is a large-scale LNG project by global standards, and is expected to
be operational over a period of 40 years. In 1998, INPEX acquired an exploration permit in
the block where the project is located, and following development studies including
exploration, evaluation and FEED work, the company announced its final investment
decision (FID) in January 2012. Thereafter, following the construction of the required facilities,
the Project commenced production of gas from the wellhead in July 2018 and commenced
shipment of condensate and LNG in October 2018, and LPG in November 2018.
For more details on the Ichthys LNG Project, visit
https://www.inpex.co.jp/english/ichthys/index.html.
Media Contact: INPEX Tokyo Office, Public Relations Group, Tel) +81-3-5572-0233