 Between deployments supporting the fast carrier task forces at sea, "Tappahannock" returned to the west coast of the United States calling at the familiar ports of San Pedro and San Diego, California, as well as at Astoria, Oregon, before heading west on 21 February 1945 and arriving at Pearl Harbor five days later.Subsequently operating out of Eniwetok, Kerama Retto, and Ulithi, the oiler supported 3rd and 5th Fleet operations against the Japanese homeland — duties which she continued as the war progressed closer and closer to Japan.After the cessation of hostilities on 14 August, "Tappahannock" continued in her vital support role during the occupation of the erstwhile enemy's homeland.