Built in 1975, by Quality Equipment Incorporated of Houma, Louisiana (hull #125) as the Gulf Ace II for Gulf Mississippi Marine Incorporated of Houston, Texas.
In 1978, Gulf Mississippi Marine Incorporated became Gulf Fleet Marine Incorporated of Houston, Texas. Where the tug retained her name.
In 1985, Zapata Marine Service, Gulf Fleet Marine Incorporated, and Jackson Marine Services merged to form Zapata Gulf Marine Service Incorporated of Houston, Texas. Where the tug retained her name.
In 1992, Zapata Gulf Marine Incorporated merged with Tidewater Marine Incorporated of New Orleans, Louisiana. Where the tug retained her name.
In 2006, the tug was acquired by the Crosby Marine Transportation Company of Golden Meadow, Louisiana. Where she was renamed as the Crosby Marlin.
Powered by two, EMD 16-645E2 diesel engines. With two Reintjes WAV2600 reduction gears, at a ratio of 5:1. Turning two, four bladed, 128(in) by 90(in), fixed pitch propellers, mounted in kort nozzles. She is a twin screw tug, rated at 4,800 horsepower.
Her electrical service is provided by two, 99kW, generator sets. Driven by two, GM DD 8V-71 diesel engines. The tug's capacities are 119,000 gallons of fuel oil, 2,750 gallons of lube oil, 2,035 gallons of cargo water, and 10,100 gallons of potable water.
The tug's towing gear consists of a double drum, INTERcon DD200 towing winch. Outfitted with 6,600(ft) of 2(in) towing wire on each drum.
(Captain Eric Takakjian, Kyle Stubbs)