Operations Update - June 2026

Highlights

• Total sales revenue for June was A$561,477 net to Bass

• Cooper Basin oil production was 2,527 barrels with 1,114 barrels sold in the month at an average oil price of A$116.58 per barrel

• Indonesian oil production was 4,219 barrels net to Bass, with 4,218 barrels sold at an average oil price of US$77.48 per barrel

• Daily oil production for the group averaged 225 bopd for the month, with total monthly production of 6,746 barrels up 3%

• Bunian 6 oil development well commenced drilling 5 June and is due online in late August

• Vanessa transaction completed in June – engineering to recommission the facility underway

• Interpretation of the reprocessed Kiwi 3D seismic dataset showing encouraging results