Tags coal output Mineral sector posts low growth rate Tuesday, Nov 07, 2017 The growth rate of the mineral exploitation sector in the first 10 months of the year posted a decline of 7.4 per cent from the same period last year. Crude oil, coal output increase despite challenging conditions Wednesday, Feb 04, 2015 Crude oil and coal output in January rose some 10 per cent over January 2014, despite falling petrol prices and unfavourable coal mining conditions, reported the Ministry of Industry and Trade.