Built in 1982, by DeHart Shipyard Incorporated of Abbeville, Louisiana as the A.R. Cenac for the Cenac Towing Company Incorporated of Houma, Louisiana.

In 2004, the tug was acquired by Settoon Towing Incorporated of Pierre Part, Louisiana. Where she was renamed as the Amelia R. Settoon.

In 2012, Settoon Towing Incorporated renamed the tug as the Dudley L. Settoon.

She is a twin screw towboat, rated at 900 horsepower.