Bengalla is an open cut mine, using a dragline truck and shovel method. 400 employees (as at 30 June 2013) work in shifts to keep the mine operational 24 hours a day, seven days a week.

Operations are centred in the Wittingham Coal Measures of the Hunter Coalfield, which is part of a Permian coal basin known as the Sydney basin.

In 2012 the mine produced more than seven million tonnes of high quality thermal coal for export used for electricity generation. After being washed and prepared for sale, the coal is loaded onto trains for transportation 115km to the Port Waratah coal terminal in Newcastle where it is shipped to international customers.

Bengalla had marketable reserves of 128 million tonnes as at 31 December 2012.