Baffin Bay Geological Survey has estimated that at least 13% of the world's undiscovered oil deposits and 30% of the world's undiscovered gas pockets are located in the Arctic, with the seas around Greenland potentially holding large amounts of natural gas and lesser amounts of crude oil and natural-gas liquids. Accordingly, the Greenland authorities have offered a large number of off-shore concessions for potential hydrocarbon (oil and gas) extraction. The largest concession-areas are located in seas west of Greenland; primarily in Baffin Bay and the Davis Strait, but with several smaller concessions in the Greenland Sea in the east also. Baffin Bay
Surigao Strait Surigao Strait Surigao Strait (Filipino: "Kipot ng Surigaw") is a strait in the southern Philippines, between the Bohol Sea and the Leyte Gulf of the Philippine Sea. It is located between the regions of Visayas and Mindanao. It lies between northern Mindanao Island and Panaon Island, and between the Dinagat Islands and Leyte island. The strait is deep but has a strong current, up to . The northern entrance of the Surigao Strait is marked by a navigation light on Suluan Island. The Hibuson island lies at the north end of the Surigao Strait. It is regularly crossed by numerous