Gunnedah-Bowen Basin

The Gunnedah–Bowen Basin is part of the Sydney–Gunnedah–Bowen Basin system, a major basin system which extends from southern coastal New South Wales to central Queensland. The Gunnedah–Bowen Basin covers an area of just over 15,000 km2, overlies part of the Palaeozoic Lachlan Orogen, and is overlain on the north and west by the Surat Basin.

The Permo-Triassic Gunnedah Basin hosts two main coal measure sequences, the Blackjack Group and the Maules Creek Formation. The coal produced is bituminous coking and thermal coal. The quality of thermal coal ranges from medium to high ash, low sulfur coal to low ash, high energy, export quality coal. Coking coal, used for iron and steel production, supply both the export and domestic markets.