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Australia & Timor Sea Joint Petroleum Development Area

Ichthys LNG Project and its surrounding blocks

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Contract area(block) Project status Venture company(established Interest owned(*Operator)
(As of August 31, 2014)
WA-50-L Under development INPEX Ichthys Pty Ltd
(Est. April 5, 2011)
INPEX* 62.245%
TOTAL 30.000%
CPC 2.625%**
Tokyo Gas 1.575%
Osaka Gas 1.200%
Kansai Electric Power 1.200%**
Chubu Electric Power 0.735%
Toho Gas 0.420%

**Subject to the satisfaction of
certain conditions precedent including
the approval by the Australian government.
WA-51-L INPEX Browse, Ltd.
(Est. September 1, 1998)
INPEX Australia Website
WA-285-P Under exploration
WA-274-P INPEX Browse E&P Pty Ltd.
(Est. October 21, 2013)
INPEX 20%
Chevron 50%
*Santos 30%
WA-281-P INPEX 20.0000%
Santos* 47.8306%
Chevron 24.8300%
Beach 7.3394%
WA-341-P INPEX* 60%
Total 40%
WA-343-P INPEX* 60%
Total 40%
WA-344-P
(WA-56-R)
INPEX* 60%
Total 40%
WA-410-P INPEX 20%
Santos* 30%
Chevron 50%
WA-502-P INPEX 40%
Santos* 60%
WA-504-P INPEX 40%
Santos* 60%
WA-494-P INPEX 100%
AC/P36 *INPEX 50%
Murphy 50%

In 1998, INPEX acquired the petroleum exploration permit WA-285-P in the Browse Basin offshore Western Australia. Exploration activities during 2000 resulted in the discovery of the promising gas and condensate field, now known as the Ichthys gas-condensate field. Having made the final investment decision (FID) on the Ichthys LNG Project in January 2012, detailed Engineering, Procurement and Construction (EPC) is ongoing and production is scheduled to commence by the end of 2016.

Gas from the Ichthys gas condensate field will be transported, after extraction of condensate at a Central Processing Facility, through a subsea pipeline to the onshore liquefied natural gas (LNG) plant to be built in Darwin, Northern Territory. The Ichthys LNG Project will be a world class LNG project with 8.4 million tonnes of LNG per annum together with LPG (1.6 million tonnes per annum) and condensate (approximately 100,000 barrels of condensate per day at peak).

Prelude FLNG Project (WA-44-L Block)

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Contract area(block) Project status Venture company(established Interest owned(*Operator)
(As of June 30, 2014)
WA-44-L Under development INPEX Oil & Gas Australia Pty Ltd
(February 28, 2012)
INPEX 17.5%
Shell* 67.5%
KOGAS 10.0%
CPC 5.0%

In June 2012, INPEX acquired from Shell a 17.5% interest in the Prelude FLNG Project, which is located in WA-44-L, approximately 475 km north-northeast of Broome, off the coast of Western Australia. A production, liquefaction and shipment project using FLNG, the Prelude FLNG Project consists of the Prelude and Concerto gas fields and will produce approximately 3.6 million tons per year of LNG, 400,000 tons per year of LPG at peak and approximately 36,000 barrels per day of condensate at peak.

Shell (the operator) made the FID on the Prelude FLNG Project, which will be the world's first FLNG project, in May 2011. Development of the Prelude FLNG Project is currently under way, with the start of production targeted at around 10 years from when the Prelude Gas Field was first discovered in early 2007.

Through its participation as a project partner in the Prelude FLNG Project, INPEX is acquiring experience and knowledge on FLNG, which it expects to leverage in the Abadi LNG Project in Indonesia.

Prelude FLNG Project

Prelude FLNG Project (FLNG vessel)

Van Gogh Oil Field, Ravensworth Oil Field and others

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Contract area(block) Project status
(production on the basis of all fields and average rate of FY2013)
Venture company(established Interest owned(*Operator)
(As of June 30, 2014)
WA-35-L
(Van Gogh oil field)
In production
Crude oil: 9 Mbbl/d
INPEX Alpha, Ltd.
(Est. February 17, 1989)
INPEX 47.499%
Apache* 52.501%
WA-43-L
(Ravensworth oil field)
In production
Crude oil: 10 Mbbl/d
INPEX 28.5%
BHPBP* 39.999%
Apache* 31.501%
WA-35-L, WA-55-L Unitization area
(Coniston Unit)
Under development INPEX 47.499%
Apache* 52.501%
WA-35-L
(excluding Van Gogh Oil Field)
Under exploration INPEX 47.499%
Apache* 52.501%
WA-155-P (Part II) INPEX 18.670%
Apache* 40.665%
OMV 27.110%
JX 7.000%
Tap 6.555%
WA-155-P (Part I) INPEX 28.5%
Apache 71.5%

INPEX acquired interests in offshore Western Australia WA-155-P (Part I) in July 1999, after which the Van Gogh and Ravensworth oil fields were discovered. The Australian Government granted production licenses for the WA-35-L and WA-43-L blocks, at which oil production commenced in February and August of 2010, respectively. The development of the Coniston Unit, which saddles WA-35-L and WA-55-L, was started in December 2011, and work targeting the commencement of crude oil production in early 2015 is under way.


Van Gogh Oil Field, Ravensworth Oil Field and others

Van Gogh FPSO

Bayu-Undan Project (JPDA03-12 Block) and Kitan Oil Field (JPDA06-105 Block)

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Contract area(block) Project status
(production on the basis of all fields and average rate of FY2013)
Venture company(established Interest owned(*Operator)
(As of June 30, 2014)
JPDA03-12 In production
-Crude oil: 36 Mbbl/d
-Natural gas: 572 MMcf/d
(Volume not at wellheads but corresponding to the sales to buyers)
-LPG: 21 Mbbl/d
INPEX Sahul, Ltd.
(Est. March 30, 1993)
INPEX 19.2458049%
ConocoPhillips* 61.3114766%
Santos 19.4427185%
Bayu-Undan Unit INPEX 11.378120%
ConocoPhillips* 56.943372%
Eni 10.985973%
Santos 11.494535%
Tokyo Timor Sea Resources (TEPCO/Tokyo Gas) 9.198000%
JPDA06-105
(Kitan Oil Field)
In production
-Crude oil: 12 Mbbl/d
INPEX Timor Sea, Ltd.
(November 25, 1991)
INPEX 35%
Eni* 40%
Talisman 25%

In April 1993, INPEX acquired an interest in JPDA03-12, a contract area located in the Timor Sea JPDA, which is jointly managed by Australia and East Timor. Exploration within this contract area resulted in the discovery of oil and gas fields. Of these, studies revealed that the Undan structure and the Bayu structure in the adjacent JPDA03-13 contract area were a single structure. The interest holders unitized both contract areas in 1999, allowing joint development of the Bayu-Undan Gas-Condensate Field to proceed. The commercial production and shipment of condensate and LPG started in 2004, and LNG in February 2006.

The presence of oil was confirmed through exploration drilling of the Kitan-1 and Kitan-2 wells in March 2008 in the JPDA06-105 contract area, which INPEX acquired in January 1992. Thereafter, we obtained approval for the final development plan from the Timor Sea JPDA authorities in April 2010. After development work, production at the Kitan Oil Field commenced in October 2011.


Bayu-Undan Project (JPDA03-12 Block) and Kitan Oil Field (JPDA06-105 Block)

Bayu-Undan Project

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