JSE-listed Keaton Energy delivered “pleasing” production volumes for the financial year ended March 31, despite experiencing a 4% dip in sales. Some 2.1-million tonnes of washed two- and four-seam thermal coal from Keaton’s Vanggatfontein openpit colliery, near Delmas, were sold to State-owned power utility Eskom during the period under review, a 4% decline on the sales of 2.2-million tonnes in the prior year.