Built in 1967, by Burton Shipyard Incorporated of Port Arthur, Texas (hull #407) as the Plato.
In 1971, the tug was acquired by Gulf Mississippi Marine Incorporated of Houston, Texas. Where she was renamed as the Gulf King.
In 1978, Gulf Mississippi Marine Incorporated became Gulf Fleet Marine Incorporated of Houston, Texas. Where the tug retained her name.
In 1979, the tug was leased by the McAllister Brothers Towing Company of New York, New York. Where she was renamed as the Mark McAllister.
In 1980, the tug was acquired by the McAllister Brothers Towing Company of New York, New York. Where the tug retained her name.
In 2011, the tug was removed from active service. And, "laid up" at McAllister Towing and Transportation's yard at Mariner's Harbor in Staten Island, New York,
In 2014, the tug was scrapped at Providence, Rhode Island. Repowered in 1999 with two, EMD 16-645-E5, diesel engines. With Philadelphia 28 HRMGH reduction gears, at a ratio of 4.09:1. Turning two, 115(in) by 81(in), fixed pitch, propellers. For a rated 6,000 horsepower.
Her capacities were 78,000 gallons of fuel oil, 2,000 gallons of lube oil and 7,600 gallons of potable water.
The towing gear consisted of a double drum, Almon Johnson towing winch. Outfitted with 2,100(ft) of 2(in) towing wire on each drum.
(Captain Eric Takakjian, Kyle Stubbs, Nate Lopez)