Sigguk Block is an oil exploration block in Baffin Bay. It is located 175 kilometres (109 mi) west of Disko Island, Greenland. The block consists of Alpha, T4, and T8 prospects. The license to explore the block belongs to Cairn Energy's subsidiary Capricorn Greenland Exploration Limited. In October 2009 Cairn Energy sold a 20% stake of its rights to Petronas. The national oil company of Greenland NUNAOIL owns 12.5% interest.