Built in 1978, by Delta Shipyard of Houma, Louisiana (hull #124) as the Ron G. for Offshore Shipbuilding Incorporated of Palatka, Florida.
In 1998, the tug was acquired by Coastal Express Incorporated of Houma, Louisiana. Where the she retained her name.
In 2007, the tug was acquired by the McAllister Towing and Transportation Company of New York, New York. Where she retained her name.
In 2014, the tug went on charter to an operator in the the British, Virgin Islands. Where she retained her name.
In 2016, she was returned to McAllister Towing and Transportation of New York, New York. Where the tug retained her name.
In 2016, the tug was acquired by the Cross State Towing Company of Jacksonville, Florida. Where the tug was renamed as the Captain Mark.
Powered by two, GM 16-149-TIB diesel engines. With Twin Disc MG-540 reduction gears, at a ratio of 7:1. The tug is outfitted with kort nozzles. She is a twin screw tug, rated at 2,400 horsepower.
Her capacities are 60,000 gallons of fuel oil, 650 gallons of lube oil and 3,000 gallons of potable water.
The towing equipment consists of an Intercontinental, double drum, towing winch. Equipped with 2,000(ft) of 1.5(in) towing wire. She is outfitted with one fire monitor rated at 500 Gallons Per Minute.