Built in 1971, by the Matton Shipyard Company of Cohes, New York (hull #339) as the Mobil 1 for the Mobil Oil Corporation of New York, New York.
In 1992, the Mobil Oil Corporation renamed the tug as the Tioga.
In 1993, the tug was acquired by the Reinauer Transportation Companies of Staten Island, New York. Where she was renamed as the Zachery Reinauer.
Powered by two, twelve cylinder, EMD 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 45,701 gallons of fuel.