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 Incorporated of East Brunswick, New Jersey. Where the tug retained her name.
In 2011, the K-Sea Transportation Partnership Incorporated 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.
In 2026, she was acquired by Stasinos Marine LLC. of Fall River, Massachusetts. Where the tug was renamed as the Jennifer Ann.
Powered by two, twelve cylinder, EMD 12-645-EZ diesel engines. With Reintjes WAV 1850 reduction gears, at a ratio of 4.950:1. 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 driven by two, Detriot Diesel diesel engines. The tug's capacities are 95,366 gallons of fuel, 1,600 gallons of lube oil, 399 gallons of gear oil, 637 gallons of hydraulic oil, and 8,500 gallons of potable water.
Her towing equipment consists of a Markey TDSD-32 double drum towing winch. Equipped with 1,800(ft) of 2 (in), stainless steel towing cable on each drum.