Big Sky Petroleum Corporation, formerly Fox Resources Ltd., is an exploration-stage company. On December 1, 2011, the Company announced the acquisition of Big Sky Operating LLC (Big Sky), a private company with oil and gas interests in Montana. Big Sky is an oil and gas exploration and development company based in Billings, Montana. Big Sky is focused primarily on the exploration and development of oil and gas in the Alberta Basin, commonly referred to as the Bakken source system. As of December 1, 2011, Big Sky owned a 33.333% working interest in approximately 100,000 net acres in Toole and Glacier counties, Montana.