Global Navigation:

Our Business

Australia & Timor Sea Joint Petroleum Development Area

Ichthys LNG Project and its surrounding blocks

↓This table is scrollable horizontally.

Contract area(block) Project status Venture company(established) Interest owned(*Operator)
(As of June 30, 2016)
WA-50-L Under development INPEX Ichthys Pty Ltd
(April 5, 2011)
INPEX Ichthys Pty* 62.245%
TOTAL 30.000%
CPC 2.625%
Tokyo Gas 1.575%
Osaka Gas 1.200%
Kansai Electric Power 1.200%
JERA 0.735%
Toho Gas 0.420%
WA-51-L
WA-285-P Under exploration INPEX Browse E&P Pty Ltd.
(October 21, 2013)
WA-343-P INPEX Browse E&P Pty* 60%
TOTAL 40%
WA-56-R Under exploration (Oil/gas reservoirs confirmed) INPEX Browse E&P Pty* 60%
TOTAL 40%
AC/P36 Under exploration INPEX Browse E&P Pty* 50%
Murphy 50%
WA-494-P INPEX Browse E&P Pty* 100%
WA-274-P/
WA-58-R
Under exploration (Oil/gas reservoirs confirmed) INPEX Browse E&P Pty 20%
Santos* 30%
Chevron 50%
WA-281-P Under exploration (Oil/gas reservoirs confirmed) INPEX Browse E&P Pty 20.0000%
Santos* 47.8306%
Chevron 24.8300%
Beach 7.3394%
WA-57-R Under exploration INPEX Browse E&P Pty 20%
Santos* 30%
Chevron 50%
WA-502-P INPEX Browse E&P Pty 40%
Santos* 60%
WA-504-P INPEX Browse E&P Pty 40%
Santos* 60%
WA-513-P INPEX Browse E&P Pty 40%
Santos* 60%
WA-514-P INPEX Browse E&P Pty 40%
Santos* 60%

In 1997, INPEX placed an open tender bid to acquire the petroleum exploration permit WA-285-P, located approximately 200 km northwest of Western Australia’s Kimberley coast. This bid was accepted in August 1998. During the initial phase of exploration, which began in March 2000, the Company drilled three exploratory wells that confirmed the presence of gas and condensate. As part of a second drilling campaign, INPEX conducted three-dimensional seismic surveys while drilling an additional two wells. These activities helped to identify the existence of sufficient recoverable reserves of gas and condensate to warrant commercial development. From 2009, the Company undertook front-end engineering and design (FEED) operations, acquired government approval and engaged in LNG marketing and other related activities. A final investment decision (FID) was made in January 2012, triggering the start of fully fledged development work.

As of March 2016, project progress rate was approximately 84%. Looking at the status of offshore facilities, work continues on the construction of a central processing facility (CPF) and a floating production, storage and offloading (FPSO) facility. Installation of the topside modules for both offshore facilities has been completed. Currently, internal construction work and commissioning are under way. The installation of the chains anchoring the CPF and FPSO on the ocean was completed in April 2016. As regards other offshore-related work, the laying of the 890-km-long gas export pipeline (GEP) that will connect the Ichthys gas-condensate field with onshore facilities in Darwin was completed in November 2015. The drilling of production wells remains ongoing. With regard to the onshore facilities, the Company has finished the delivery and installation of all the modules of 1st train (natural gas liquefaction facilities) and is currently carrying out connection work. As of June 2016, the installation of 90% of the more than 200 modules had been completed. In moving toward the commencement of operations of both the offshore and onshore facilities, the Company is paying maximum attention to safety while making progress with a variety of tasks.

INPEX holds 12 exploration blocks in the vicinity of the Ichthys gas-condensate field and is currently engaging in exploration activities. Of this total, evaluation work on the gas already discovered at the three WA-56-R, WA-281-P, and WA-274-P blocks is under way. In the event that substantial amounts of crude oil and natural gas are confirmed as a result of this exploration and evaluation activity, synergies and other effects with the Ichthys LNG Project are expected to further expand business.

Ichthys LNG Project

Ichthys LNG Project Website

INPEX Australia Website


FPSO under construction

Onshore gas liquefaction plant

Prelude FLNG Project (WA-44-L Block)

↓This table is scrollable horizontally.

Contract area(block) Project status Venture company(established) Interest owned(*Operator)
(As of June 30, 2016)
WA-44-L Under development INPEX Oil & Gas Australia Pty Ltd
(February 28, 2012)
INPEX Oil & Gas Australia 17.5%
Shell* 67.5%
KOGAS 10.0%
CPC 5.0%

In June 2012, we 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 approximately produce 3.6 million tons per year of LNG, 400 thousand tons per year of LPG at peak and approximately 36 thousand barrels per day of condensate at peak.

Shell (the operator) made the FID on the Prelude FLNG Project, which is 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.

Prelude FLNG Project

FLNG vessel

Van Gogh Oil Field, Ravensworth Oil Field and others

↓This table is scrollable horizontally.

Contract area(block) Project status
(production on the basis of all fields and average rate of FY2015)
Venture company(established) Interest owned(*Operator)
(As of June 30, 2016)
WA-35-L
(Van Gogh Oil field)
In production
Crude oil: 15 Mbbld
INPEX Alpha, Ltd.
(February 17, 1989)
INPEX Alpha 47.499%
Quadrant* 52.501%
WA-35-L & WA-55-L Unitization area INPEX Alpha 47.499%
Quadrant* 52.501%
WA-43-L
(Ravensworth Oil field)
In production
Crude oil: 11 Mbbl/d
INPEX Alpha 28.500%
BHPBP* 39.999%
Quadrant* 31.501%
WA-155-P (Part II) Under exploration INPEX Alpha 18.670%
Quadrant* 40.665%
OMV 27.110%
JX 7.000%
Tap 6.555%
  • Van Gogh Oil Field, Ravensworth Oil Field and others

    Van Gogh FPSO vessel

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 above oil fields as 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 Oil Field, which saddles WA-35-L and WA-55-L, was started in December 2011, and crude oil production commenced in May 2015.

Bayu-Undan Project (JPDA03-12 Block)

↓This table is scrollable horizontally.

Contract area(block) Project status
(production on the basis of all fields and average rate of FY2015)
Venture company(established) Interest owned(*Operator)
(As of June 30, 2016)
JPDA03-12 In production
-Crude oil: 21 Mbbl/d
-Natural gas: 586 MMcf/d
(Volume not at wellheads but corresponding to the sales to buyers)
-LPG: 13 Mbbl/d
INPEX Sahul, Ltd.
(March 30, 1993)
INPEX Sahul 19.2458049%
ConocoPhillips* 61.3114766%
Santos 19.4427185%
Bayu-Undan Unit INPEX Sahul 11.378120%
ConocoPhillips* 56.943372%
Eni 10.985973%
Santos 11.494535%
Tokyo Timor Sea Resources (TEPCO/Tokyo Gas) 9.198000%

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.


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

Bayu-Undan offshore facility

To top of page