 Upon arrival New Caledonia in November, she reported to Commander, Southern Pacific, for duty as a mobile floating oil storage ship.From May to August 1945 "Moose" served as a fuel supply ship supporting the effort to end the war against Japan, calling at Ulithi, the Palau Islands, Leyte Gulf, Okinawa, and Kerama Retto, discharging her one-millionth barrel of fuel at Buckner Bay, Okinawa, on 21 August.With the end of the war in the Pacific, "Moose" reported to the Atlantic Fleet at Norfolk, Virginia, on 4 February 1946.