This article is about the petroleum company. For the invention show, see INPEX.
INPEX Corporation
Public KK (listed as INPEX Holdings Inc. TYO: 1605)
Industry Petroleum
Founded 1941 (as Teikoku Oil)
1966 (as North Sumatra Offshore Petroleum Exploration)
Headquarters Akasaka Biz Tower 5-3-1 Akasaka, Minato-ku, Tokyo 107-6332 Japan
Key people
Kunihiko Matsuo, Chairman
Naoki Kuroda, President
Revenue Increase ¥ 1,202.965 billion JPY (FY 2007)
Increase ¥ 173.245 billion JPY (FY 2007)
Number of employees
2,146 (784 temporary workers) (2011)

INPEX Corporation is a Japanese oil company established in February 1966 as North Sumatra Offshore Petroleum Exploration Co., Ltd.[1]

Public listing

INPEX was listed on the first section of the Tokyo Stock Exchange on November 17, 2004. At that time the indebted Japan National Oil Corporation (JNOC), now part of the Japan Oil, Gas and Metals National Corporation which owned a 53.96% stake in Inpex, put up for sale 343,725 shares (17.9 percent of Inpex's 1.92 million outstanding shares). It was the second of JNOC's subsidiaries to go public, after the Japan Petroleum Exploration Company in December 2003.[2]


On April 3, 2006,[3] INPEX Corporation and Teikoku Oil merged to form INPEX Holdings.[4] On October 1, 2008, the merger process was completed with Inpex Corporation being formed from INPEX Holdings, INPEX, and Teikoku Oil, and the headquarters were moved to Akasaka, Tokyo.[5][6]


In the fiscal year 2011 the company had 2,146 staff, with 784 temporary employees.[7]

As of March 31, 2010, the INPEX Labor Union has 1,030 members. The company has a labor-management council and regular meetings are held.[8]


Operations in Japan

The main focus of the company's operations in Japan is the Minami-Nagaoka Gas Field in Niigata Prefecture.[9]


INPEX created a venture company called INPEX Browse, Ltd on 1 September 1998. This was for a previously wholly owned INPEX project in the offshore Basin off the north west coast of Western Australia where a gas-field was discovered in the WA-285-P permit area. The official name of the proposed development project will be the Ichthys (gas-field) Development, which the company wanted to base on the Maret Islands. After farming out 24% of the permit ownership to Total S.A.'s subsidiary Total E&P Australia the concept and location was changed.

The location of this project, and the issue of industrialising the Kimberley coast is under discussion in Australia. Environmentalists and local ecotourism operators are concerned about industrial infrastructure destroying the pristine nature of this coast line.

The original project consisted of an offshore Central Processing Facilities (CPF), supplying two phase gas to an onshore facility on the Maret Islands. The facilities on the Maret Islands were to include gas receiving, LNG process plant (2 x 3.8Mtpa trains), product storage and export facilities. Maret Islands are located approximately 200 km south-east of the lchthys Field, which is approx. 440 km north of Broome and 800 km south west of Darwin.

The project for the LNG plant to be located on the isolated Maret Islands was scrapped with the LNG Plant now to be built at Blaydin Point industrial site which is located on the Middle Arm Peninsula in Darwin, Northern Territory, with a 889 kilometres (552 mi) pipeline from the lchthys Field to the LNG Plant, after regulatory delays in Western Australia.[10][11]

The Ichthys Project's Front-End Engineering Design (FEED) was completed in April 2011. Final Investment Decision (FID) was announced on 13 January 2012.

In January 2012 Inpex said the 8.4 million tonne per annum (mtpa) project near Darwin will cost about $34 billion, some 60 per cent more than Inpex's original estimate of $20 billion. Inpex said it and French energy company Total, its joint venture partner, had given the final approval to the project. Total had expressed interest in increasing its stake in the project from 24% to 30%, and negotiations between the two companies were underway.

The project will pump $3.5 billion into the Australian economy each year, and require around 2,700 workers during peak construction, and another 300 jobs ongoing once it is operational.[12]

The EPC early works phase, such as commencement of site development, infrastructure works and accommodation village and dredging began in 2012. LNG Production in the magnitude of app. 8.4mtpa is projected to be online by fourth quarter of 2016.


In November 2008, INPEX acquired a 100 per cent participating interest in the Masela Block in Indonesia.[13] Gas was discovered in 2000 when the Abadi-1 exploratory well was drilled. This marked the first discovery of crude oil and natural gas in the Arafura Sea in Indonesia.

A development plan was submitted to the Indonesian government and subsequently approved. Preparatory measures for Front-End Engineering Design, set to begin in the first half of 2012, are currently in process.[14]

References and notes

  1. The Japan Times Inpex fetches 549,000 yen in debut on first section November 18 2004 Retrieved on August 14, 2012
  2. The Japan Times Inpex fetches 549,000 yen in debut on first section November 18 2004 Retrieved on August 14, 2012
  3. INPEX website Company Overview June 26 2012 Retrieved on August 14, 2012
  4. The Japan Times Inpex books 25.76 billion yen profit August 10 2006 Retrieved on August 14, 2012
  5. INPEX website History - Inpex Corporation Retrieved on August 14, 2012
  6. INPEX website Message from the management October 2008 Retrieved on August 14, 2012
  7. Inpex website NOTICE OF THE 6th ORDINARY GENERAL MEETING OF SHAREHOLDERS p.39 June 4 2012 Retrieved on August 17, 2012
  8. Inpex website Employee Development and Health Management Retrieved on August 17, 2012
  9. Inpex website NOTICE OF THE 6th ORDINARY GENERAL MEETING OF SHAREHOLDERS p.39 June 4 2012 Retrieved on August 17, 2012
  10. "Inpex chooses Darwin for LNG plant". 2008-09-26. Retrieved 2008-09-26.
  11. "Darwin chosen for $12b Inpex project". Australian Broadcasting Corporation. ABC News. 2008-09-26. Retrieved 2008-09-26.
  12. The Age 'Game changer' LNG project approved for Darwin January 13 2012
  13. "INPEX Asia & Oceania". INPEX Corporation. Retrieved 8 December 2011.
  14. "Partnering in the Abadi Project, the Masela Block, Arafura Sea, Indonesia" (PDF). INPEX Corporation. Retrieved 8 December 2011.

External links

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