Built in 2011, by Inspection Construction Unlimited Incorporated of Amelia, Louisiana (hull #ICU-2008-382) as the Rev. Clarence W. Settoon for Settoon Towing Incorporated of Pierre Part, Louisiana.
In 2017, the tug was acquired by Savage Marine Services Incorporated of Salt Lake City, Utah. Where she was renamed as the Savage Promise.
In 2020, Savage Marine Services Incorporated was acquired by the Kirby Corporation of Channelview, Texas. Where the tug retained her name.
Powered by two, Cummins QSK19 diesel engines. She is a twin screw towboat, rated at 1,300 horsepower.