 From 26 June she was based again on Majuro, providing fuel for destroyers of the Security Patrol who guarded the waters around the bypassed, enemy-held islands of Wotje, Mili, and Jaluit.After a fueling assignment at Tarawa in September 1944, "Elk" reported to the advance fleet base at Ulithi on 15 October and there began the vital task of fueling the ships of the fast-moving Third Fleet and Fifth Fleet for their far-ranging air and surface strikes against Japanese bases.In April 1945 she arrived at Okinawa to fuel the destroyers of the radar picket line.