Trefoil-1, located in the Tasmanian offshore exploration permit T/18P, has delivered good gas shows within sandstones interbedded with shales over the intervals 2,964 – 3,000m, 3,015 – 3,044m and 3135 – 3156m and in sandstones interbedded with volcanics over the intervals 3,382 – 3,387m and 3,429 – 3,432m. There have also been indications of live oil in the mud reported over the interval 3,382m to 3,387m.

Participants in T/18P are: Origin Energy Resources Limited (Operator) 41.4%, AWE Petroleum Pty Ltd 22.6%, CalEnergy Gas (Australia) Limited 23.5% and Wandoo Petroleum Pty Ltd 12.5%. First Australian Resources has lodged an approximate 1% royalty claim over the permit.