The Maules Creek mine, in New South Wales, set a RoM production record during the quarter, producing 2.9-million tonnes, an 11% increase on the previous corresponding period. Saleable coal production from the mine was also up by 7% on the March 2017 production figure, to 2.6-million tonnes. The Narrabri mine produced 1.2-million tonnes RoM coal during the quarter, an 11% decline on the previous corresponding period, after the operation suffered from production delays due to mechanical problems and localized weighting events. The Gunnedah opencut operations produced a record 1.7-million tonnes RoM coal for the March quarter, up from the 1.69-million tonnes in the previous corresponding period, while saleable coal production was also up from 1.39-million tonnes to 1.41-million tonnes over the same period.