BP Prudhoe Bay Royalty Trust operates as a grantor trust in the United States. The company holds overriding royalty interest comprising a non-operational interest in minerals in the Prudhoe Bay oil field located on the North Slope of Alaska. The Prudhoe Bay field extends approximately 12 miles by 27 miles and contains approximately 150,000 gross productive acres. As of December 31, 2016, its estimated proved reserves were 9.376 million barrels of oil and condensate of which 9.204 million barrels are proved developed reserves and 0.172 million barrels are proved undeveloped reserves. BP Prudhoe Bay Royalty Trust was founded in 1989 and is based in Houston, Texas.