Built in 2010, by Main Iron Works Incorporated of Houma, Louisiana (hull #431) as the C.E. Cenac III for the Cenac Towing Company Incorporated of Houma, Louisiana.
In 2011, the tug was acquired by Enterprise Marine Services of Houma, Louisiana. Where she was renamed as the C.E.
In 2015, she was acquired by Harley Marine Services Incorporated of Seattle, Washington. Where the tug retained her name.
In 2016, Harley Marine Services added an upper wheelhouse to the tug.
Powered by two, Tier III compliant, Cummins KTA 38 M1 diesel engines. With Twin Disc MG 5321 DC reduction gears, at a ratio of 6.39:1. Turning two, four bladed, fixed pitch, 72(in) by 60(in) propellers. For a rated 4,000 horsepower.
Her electrical service is provided by two, Tier III compliant, 65kW, Northern Lights M65C3 generator sets. The tug's capacities are 54,834 gallons of fuel, 1,576 gallons of lube oil, and 22,321 gallons of water.
The towing equipment consists of an INTERcon DW175, air-Hydraulic, double drum, waterfall towing winch. Outfitted with 3,000(ft) of 1.75(in) towing wire.