During the autumn of 1958, she earned the Armed Forces Expeditionary Medal for her support for the ships and troops engaged in the U.S. intervention in the 1958 Lebanon crisis.

She entered the Norfolk Naval Shipyard in Portsmouth, Virginia, in June 1959 to receive modifications to allow her to perform underway replenishment of other ships.

The work was interrupted in August 1959 in order that she might conduct refresher training in Cuban waters and then make a two-month deployment to the Mediterranean Sea.

Between January and May 1962, she operated out of Norfolk, Virginia, conducting stores ship training and participating in a multiship exercise in the West Indies.

In June 1962, she loaded supplies at Charleston and then steamed to Scotland on her first resupply voyage to the fleet ballistic missile base at Holy Loch.

Following a resupply mission to the fleet ballistic missile base at Holy Loch in January 1964 and participation in the annual "Springboard" exercise near Puerto Rico, Antares returned to Norfolk later in the spring of 1964 to prepare for inactivation.

[2] Antares remained inactive in the James River Reserve Fleet until she was sold for scrapping on 5 April 1974 to the Union Minerals and Alloys Corporation, to which she was delivered on 31 May 1974.