INFORUM | ND Native Americans hint at exiting state oil tax deal INFORUM Multiple oil well sites are seen on the Fort Berthold Indian Reservation in North Dakota, in a November 1, 2014 file photo. The Fort Berthold Indian Reservation, home to the Mandan, Hidatsa, and Arikara Nation, produces nearly a third of North Dakota's ... North Dakota Native Americans hint at exiting state oil tax deal |