We already figured out A7ST1 was a bust but now it's double confirmed by the release of the OSH April drilling report:
http://www.asx.com.au/asxpdf/20170504/pdf/43j0vr5gq2kl31.pdf
In summary: "Interpretation of the available data continues, but at this stage the data suggests that the penetrated carbonate (510 metres) is unlikely to contain commercially producible hyrocarbons. The Antelope 7ST1 well has been plugged and abandoned..."
That hoped for "string of pearls" seems to have lost a bead or two after this well... I doubt exploration wells like Antelope South or Wahoo 2 will see any capital deployed in the foreseeable future for true wildcat drilling. Appraisal wells at T-R-B could possibly be budgeted if extra gas is needed to help with the FEED and FID decisions.