After postwar decommissioning January 1945 in Algeria and service with the French under lend-lease the tanker was purchased in March 1949 by France serving under the name Lac Noir.

2 was built by Pusey and Jones Corporation, Wilmington, Delaware as hull 409, contract 1044, with keel laid 19 October 1929, launch on 4 March 1930 and delivery to Tidewater Oil on 15 May 1930.

From Oran she sailed to Bizerte, Tunisia, arriving there 8 June; although under frequent air attack Guyandot worked unceasingly shuttling oil through the wreck-laden channel.

After a month in Palermo for drydock and overhaul, Guyandot returned to Taranto to take on gasoline and then sailed into the Adriatic for the port of Bari, arriving 8 February 1944.

From Bari she took high octane fuel to Manfredonia and Monopoli, carrying approximately 40 million gallons of gasoline for the forces moving up the Italian peninsula.

[3] 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.