Surat

Commentary

While a positive operating environment locally, there remains lingering questions over the ability to operate in the longer-term given the headwinds arising from the Federal regulatory environment.

Updated

January 25, 2024

Location

Description

The large, mature, intracratonic, Early Jurassic to Albian ASB occupies 300,000sq km of central southern Queensland and central northern New South Wales. It has a maximum sediment thickness of 2,500 metres and deposition was relatively continuous and widespread. Deposition in the ASB commenced with the onset of a period of passive thermal subsidence of much of eastern Australia. During the Early Jurassic, deposition was mostly fluviolacustrine, while by the Middle Jurassic coal swamp environments predominated over much of the Basin, except in the north where fluvial sedimentation continued.

Summary

The Basin has been widely explored and proven plays comprise mostly low amplitude anticlinal closures occasionally associated with thrust faulting and drapes over basement highs. Because the Basin is largely flat-lying and sedimentation widespread and relatively uniform, other types of traps are unlikely to be important.