Atlantic Coal plc is a holding company. The principal activity of the Company is the development and operation of the Stockton Colliery which comprises the Stockton Mine and an anthracite washing plant in Pennsylvania, the United States. The Company is a 100% owner of Coal Contractors (1991) Inc, which operates the Stockton Colliery, an open-cast mining operation in Pennsylvania, the United States. The Stockton Colliery, which produces anthracite coal, is located near Hazleton, in the anthracite coal bearing region of Pennsylvania, the Unite States. The Stockton mine site covers an area of approximately 900 hectares located in the Hazel Creek Valley. During the year ended December 31, 2011, the Company mined 207,005 tons of run-of-mine (ROM) coal and removed 3,257,776 bank cubic yards (BCY) of overburden. During 2011, 233,241 tons of ROM coal was washed, which produced 100,713 tons of clean coal. During 2011, sales for the year were 106,403 tons.