You are invited:

Community Information Exchange Session

Mitsui E&P Australia – Mid West Activity Update

10am – 6pm, Wednesday, 10 March 2021

Function Centre, Shire of Irwin Recreation Centre,
Point Leander Drive, Port Denison

Mitsui E&P Australia (MEPAU) invites local residents to an information exchange session covering the full range of our onshore gas exploration, production and development activities in the Shire of Irwin including:

  • Waitsia Gas Development project plans
  • Decommissioning and Rehabilitation activities, and
  • Production operations

Local stakeholder engagement continues to be an important part of MEPAU’s program of assessing and developing gas resources in the onshore northern Perth Basin, which is based on the work undertaken since the 1960s by predecessor companies.

The session is a chance for MEPAU to outline our latest plans, answer any questions you may have about our projects, identify opportunities and further understand each other’s views.  It is also an opportunity to meet project personnel from the lead contractor, Clough, who are managing the project construction activities.

This is an informal event designed to facilitate conversation and to fit in around local stakeholders’ availability.  Please stop by at a time that suits you. Light refreshments will be provided.

Activities overview:

The Waitsia gas field, discovered in August 2014, is located 14.5 km east of Dongara on private agricultural land.  It is a free-flowing reservoir discovered using conventional drilling methods and being developed in stages.

In 2016, Waitsia Stage 1 began producing gas, as an Extended Production Test, at the refurbished Xyris Production Facility.  This test allowed reuse of the existing facility while providing valuable information about the Waitsia gas field and producing 10 Terajoules (TJ)/day of gas.

In 2020, Stage 1 was expanded to include another nearby production well and a connecting pipeline to the nearby Dampier to Bunbury Natural Gas Pipeline.  This expansion doubled production to 20 TJ/day.

We are now preparing for construction of Waitsia Stage 2. This involves constructing a temporary construction village as well as a new gas plant adjacent to the existing production facility, connecting two existing wells and drilling up to six additional wells. The new gas plant will be able to produce up to 250 TJ/day.

In 2018, MEPAU referred the Waitsia Stage 2 project to the Environmental Protection Authority (EPA).  Following environmental impact assessment by the EPA, the Minister for Environment approved the project in February 2021. Other regulatory approvals are progressing.

Feedback from stakeholders has been sought throughout the design phase and we would like to keep a wide range of local stakeholders updated as the project nears the construction phase being managed by Clough.

At the same time we’re producing gas and developing Waitsia gas field, we’re continuing decommissioning and rehabilitation activities.  This means that our overall footprint is gradually reducing and that land is progressively being returned to its previous use.

If you have any questions, please send an email to:

As usual, on the day we posted this news to the website we sent an email to everyone who has asked to be kept updated. If you didn’t receive an email and would like to in future, please add your details here.

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The Northern Perth Basin

The northern Perth Basin is a prolific oil and gas producing area covering a large portion of the Mid West region of Western Australia. The town of Dongara, located approximately 360km north of Perth, is the regional economic hub for a number of energy industries.