The Basin covers approximately (506,000 km²) of which approximately (430,000 km²) is on land.
It has prospective oil and gas capcity and at June 2003 - 250 wells have been drilled and 78,000 km of seismic shot.
The basin is also a distinct physiographic province of the larger West Australian Shield division.
It has a number of sub basins - the Fitzroy Trough-Gregory Sub-basin complex, the Willara Sub-basin, and the Kidson Sub-basin complex.