Built in 1981, by Halter Marine Services Incorporated of Lockport, Louisiana (hull #979) as the Chris Candies for the Otto Candies Company of Des Allemands, Louisiana.
In 2002, the tug was acquired by the Sirius Maritime Company of Seattle, Washington. A division of Hawaiian InterIsland Towing Incorporated of Honolulu, Hawaii. Where she was renamed as the Na'Hoku.
In 2006, the Sirius Maritime Company was acquired by the K-Sea Transportation Partnership of East Brunswick, New Jersey. Where the tug retained her name.
In 2011, the K-Sea Transportation Partnership was acquired by the Kirby Corporation of Channelview, Texas. Where the tug retained her name.
In 2012, the tug was acquired by the Noah Towing Company of Charleston, South Carolina. Where she retained her name.
Powered by two, twelve cylinder, EMD 12-645-EZ diesel engines. Turning two, cast steel, fixed pitch propellers. She is a twin screw tug, rated at 3,000 horsepower.
Her electrical service is provided by two, 75kW generator sets. The tug's capacities are 95,366 gallons of fuel.