The Euston-1 well on ATP 999P in the Eromanga basin encountered 32 m of Cretaceous Toolebuc shale and evidence of gas release, said Exoma Energy Ltd., Brisbane.
Fourth well in the 2011 campaign, the well went to 632 m total depth 50 km northwest of Longreach and 50 km northeast of Bessies-1, where Exoma cut 40 m of Toolebuc shale at 883 m with gas shows. Core was recovered across the full Toolebuc section. Shale samples are undergoing gas desorption.
The next location is Katherine-1, which will also core the shale and has a deeper conventional oil formation as a secondary target.
Exoma is joint venture operator of ATP 991P, ATP 996P, ATP 999P, ATP 1005P, and ATP 1008P. Exoma has a 50% beneficial interest in ATP 999P and the Euston well. CNOOC Galilee Gas Co. Pty. Ltd. is earning a participating interest by providing the initial $50 million of joint venture outlays on Exoma’s five Galilee basin ATPs.