After a December 1943 voyage from the U.S. West Coast to Pearl Harbor with oil cargo, "Escambia" departed San Francisco, California, on 21 January 1944 for Majuro, arriving on 9 February. For the next month she fueled ships at Roi Namur and Majuro as the Marshall Islands were assaulted. From 15 March to 30 August, she sailed out of Espiritu Santo, fueling the fast carrier task force in their raids on the Palaus and during the Hollandia operation.