Northstar Island is a 5-acre artificial island in the Beaufort Sea, 12 miles northwest of Prudhoe Bay, Alaska and 6 miles north of the Alaska coast. The island was created to develop the Northstar Oil Pool, which is located approximately 12,500 feet below the seabed. The oil pool was discovered on January 30, 1984 by Royal Dutch Shell.
A small artificial island was built at the site to house an exploration oil well. After additional exploration, Alaska International Construction began construction of the island in the winter of 1999–2000. A standard oil-drilling platform, such as those used in the Gulf of Mexico, was not feasible because of the annual formation of pack ice close to the northern Alaska coast.
Wikipedia https://en.wikipedia.org/wiki/Northstar_Island
Coordinates 70°29'27.402" N -148°41'52.055" E
