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The Permian Pedirka, the Triassic Simpson and the Jurassic–Cretaceous western Eromanga basins in central Australia have undergone a sporadic exploration history which commenced in the 1950s. Exploration drilling initially focused on conventional hydrocarbons from the 1960s–1980s, before shifting towards coal seam gas (CSG) opportunities in the 2000s. The basins remain underexplored with only 42 wells drilled, and ~16,000 line km of 2D seismic acquired to date across an assessment area of ~210,000 km2. An active petroleum system has been proven by a non-commercial oil discovery at Poolowanna 1, as well as by several wells that show evidence of residual oil columns.
Iwanec et al. (Thu,) studied this question.