Back on the Bari-Manfredonia-Monopoli run, "Guyandot" continued shuttling oil until 9 December, when she sailed to Palermo for repairs and drydocking; on 7 January 1945, she crossed the Mediterranean to Bizerte. Decommissioned there 12 January, she was transferred to the French Navy as part of lend-lease. France returned the ship to the Navy on 21 March 1949 and on that same day formally purchased "Guyandot" for service under the name "Lac Noir". Her name was struck from the Navy List 28 April 1949. "Guyandot’s" crew was eligible for the following medals: