Who we are

Mitsui E&P Australia Pty Ltd and AWE Limited are both wholly owned subsidiaries of Mitsui & Co., Ltd. (Japan), and are now sister companies.  We are working under the single brand of Mitsui E&P Australia (MEPAU) to reflect the recently combined businesses.

We operate as regional headquarters for Mitsui’s oil and gas exploration and production business in Australia, New Zealand and Indonesia. We have approximately 70 people working at our head office in Perth and at site.

Since MEPAU was founded in 2004, the company has grown to become one of Australia’s largest oil producers. MEPAU has six producing oil and gas assets in Australia and is Operator of the four facilities in the Mid West of Western Australia. The company also has interests in 20 projects that are in various exploration and development stages.

We are committed to delivering safe, reliable and affordable energy. With our acquisition of AWE in May 2018 we are now part of the rich history of oil and gas production of the Mid West region.

Gas is produced from our wells and processed at our operated facilities in the Mid West, then added into the Parmelia Pipeline for transport to customers.

During normal operations we employ approximately 11 full time employees in the Mid West. This number increases substantially during periods of exploration, decommissioning and development activity.

We pride ourselves on our policy of employing local people and using local businesses wherever practicable. In the Mid West, almost all of our work force lives locally.

We operate openly, transparently and in good faith. We are committed to communicating clearly with the Mid West communities in which we operate. Members of the community are welcome to attend independently facilitated round table events to ensure that their questions are answered and any concerns are heard.

The company has a strong track record in safety, environmental management, exploration, development and production. We have built a solid reputation through our successful projects.

MEPAU is currently involved in the following Australian projects:

  • Waitsia Gas Project – onshore production and development assets, northern Perth Basin, WA (Operator)
  • Vincent and Enfield oilfields and Greater Enfield Oil Development Project– offshore North West Cape, WA
  • Casino Gas Project – offshore Otway Basin, Victoria
  • BassGas project – offshore Bass Basin, Tasmania
  • Kipper Gas project– offshore Gippsland Basin, Victoria
  • Meridian coal seam gas project – onshore Bowen Basin, Queensland

We are seeking new business opportunities in Australasia, and aim to increase reserves replacement by establishing new exploration projects as well as acquiring additional oil and gas assets.

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History of oil and gas

Oil and gas exploration has been active in the Perth Basin for more than 50 years with the first discovery at Yardarino-01 in 1964. Learn more about the history of oil and gas in the Mid West region of Western Australia.

Why is gas good for WA?

How do the people of Dongara benefit from having Mitsui E&P Australia in their backyard? Learn more here.

From Discovery to Production in Less than Two Years

The Waitsia Gas Field was sending gas to the Perth market less than two years after discovery. Learn more here.

Schedule of Activiites

See what we’re currently working on by consulting our Schedule of Activities for 2018/2019.


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 industries, including oil and gas.