Harbor tug USS YT-129 was launched by the Charleston Navy Yard on 3 March 1938 and commissioned on 1 June 1938.

Osceola reported to the 14th Naval District, headquartered at Pearl Harbor, Hawaii and was stationed at Pearl Harbor throughout World War II.

She was reclassified as a large harbor tug (YTB–129) on 12 April 1944 and was damaged during the West Loch Disaster of 21 May 1944.

[1] Her classification changed to medium harbor tug (YTM–129) in early 1962.

Osceola was sold for scrapping by the Defense Reutilization and Marketing Service (DRMS) on 1 February 1973.