"Barite" served at Ulithi as a floating lubricating oil facility into the spring of 1945, when the advent of the typhoon season made it imperative to shift Service Squadron (ServRon) 10's base to locales other than the Western Caroline Islands. Towed thence to Saipan on 15 May, she operated at that island, in the same capacity, as a unit of Service Division 101, a part of ServRon 10. Towed from Saipan on 30 June 1945, "Barite" was moved to Leyte, where she served through V-J Day.