Original sentence: Among native Alaskan tribes, support is mixed.Currently, the Prudhoe bay area accounts for 17% of U.Over the years, studies performed by the US Geological Survey have shown that large deposits of crude oil reside within the land designated as the "1002 area" of ANWR, as well.Since the 1979 energy crisis, the question of whether or not to drill has become a hot-button issue amongst various groups.Some native Alaskan tribes have come out in support of ANWR drilling, while other tribes have actively lobbied against it.The Arctic National Wildlife Refuge is just east of Prudhoe Bay in Alaska's "North Slope," which is North America's largest oil field.The question of whether or not to allow drilling in the Arctic National Wildlife Refuge has been a political football for every sitting American president since Jimmy Carter.Traditionally, Alaskan residents, trade unions, and business interests have supported drilling in the refuge, while environmental groups and the Democratic Party as a whole have traditionally opposed it
Edited sentence: ANWR is just east of Prudhoe Bay in Alaska's "North Slope," North America's largest oil field.Drilling in the Arctic National Wildlife Refuge has been a highly contentious issue for every sitting American president since Jimmy Carter.From 1990 to 2000, the area accounted for 25% of U.On the other hand, the Gwich'in Natives have actively protested and lobbied against the possibility of oil-drilling in the region.Since the 1979 energy crisis, whether or not to drill has become a hot-button issue amongst various groups.Some people believe that large amounts of oil reside within the 1002 area of the Arctic Coastal Plain.The Inupiat Eskimos support drilling by a wide margin - 78% in favor and 9% opposed.The majority of Alaskans, trade unionists and business groups support drilling in the refuge; environmental groups and many Democrats vehemently oppose it