The well was designed to test the Basal Mardie Geensand and Upper Barrow Group Sandstones, with secondary targets in the Intra and Lower Barrow Group Sandstones within an interpreted four-way dip closure to the southeast and east of the Woollybutt North and Woollybutt South oil fields.

Tap said the JV will now incorporate the results of the Yarri-1 and Woollybutt-5A wells into a forward plan for the production license. The JV will focus on the best way to develop and produce the oil discovered in Woollybutt-3A, 4 and 5A wells.

WA-25-L JV partners are Eni Australia (65%), Mobil Australia Resource (20%), and Tap Oil (15%).