Mining began at North Goonyella in 1994, and Peabody acquired the operation in 2004. Coal is exported through Dalrymple Bay coal terminal, south of Mackay, to steel makers in Japan, Asia, India and Europe.
Eaglefield is an open-cut mine located at the northern end of the Bowen Basin, about 160 kilometres west of Mackay. It produces high quality hard coking coal.
Eaglefield has been operating since 2003 and was also acquired by Peabody in 2004. Eaglefield and North Goonyella share a mining lease of 3341 hectares along with a coal handling preparation plant, tailings co-disposal storage facility, rail loop and rail load-out facility, and share an integrated water management system.
The Eaglefield mine is operated under contract by Macmahon utilising conventional truck and excavator mining methods.
The North Goonyella longwall underground mine operates in a difficult geologic environment and produces a unique metallurgical coal product. Moranbah coal measures of late permian age dipping at three degrees to the east. The coal measures contain three coal seams considered workable in the mine area: Goonyella upper, Goonyella middle and Goonyella lower.
North Goonyella produced 2.3 million tonnes of coking coal to December 31, 2009 and 2.9Mt to December 31, 2010. The mine had proven probable reserves of 103.419Mt of contained coal to December 31, 2010.
Operating. Mine operations at the North Goonyella property were halted due to a roof fall that occurred in mid-August 2011. The roof fall blocked the main entry to the mine, at a time when production was largely halted for the completion of a longwall relocation. Production was expected to resume in early October 2011.