Drilling world's longest wells at Liberty - Formally Know as Gull Island In the Book The Energy Non-Crisis By Pastor Lindsey Williams. The 100-million-barrel Liberty field lies under the shallow waters of the Beaufort Sea, about five miles from land, in an area covered by thick but mobile sea ice during the frigid Arctic winter, and populated by marine mammals such as seals and polar bears. During the summer open water season, when the sea ice typically recedes to the north, bowhead whales migrate through the region, while running the gauntlet of Inupiat subsistence hunters along the North Slope.Traditional technique is a gravel island. Although just five miles offshore, some of Liberty's wells will be located about eight miles from Endicott, thus requiring Liberty to extend over world-record horizontal distances of 34,000 to 44,000 feet to reach the Liberty field reservoir, some 11,000 feet beneath the seafloor.