Built in 1976, by the Equitable Equipment Company of Madisonville, Louisiana (hull #1661) as the Pye Theriot for Nolty J. Theriot Offshore Incorporated of Golden Meadow, Louisiana.
In 1980, the tug was acquired by the Marathon Petroleum Corporation of Findlay, Ohio. Where she was renamed as the Loretta J.
The Marathon Petroleum Corporation outfitted with hydraulic pads that extend from the sides of the tug. That consisted of large push lines, connected to hydraulic rams that pulled the tug into the notch.
The tug was "married" with the tug with a 442(ft) 150,000(bbl) barge. Named the MM-1 that was constructed in 1981. For the Marathon Petroleum Company, by Galveston Shipbuilding of Galveston, Texas for petroleum transportation work in the Gulf of Mexico.
In 1993, the unit was acquired by the Eklof Marine Corporation of Staten Island, New York. Where the tug was renamed as the Yankee.
In 1998, the Eklof Marine Corporation of was acquired by the K-Sea Transportation Partnership Incorporated of East Brunswick, New Jersey. Where the tug retained her name, and her barge was renamed as the DBL 151.
In 2011, the K-Sea Transportation Partnership Incorporated was acquired by the Kirby Corporation of Channelview, Texas. Where the tug retained her name.
In 2012, the tug was phased out of active service. And, was "laid up" at the Kirby Corporation's yard at Mariner's Harbor in Staten Island, New York.
In 2013, the tug was acquired by the SeaJon Marine Company of Hillside, New Jersey. Where she retained her name.
The SeaJon Marine Company is a combined subsidy of the DonJon Marine Company Incorporated of Hillside, New Jersey. And, SeaBulk Towing Incorporated of Fort Lauderdale, Florida.
The tug was modified at the DonJon Shipbuilding and Repair Company of Erie, Pennsylvania. Where she was rebuilt, her upper wheelhouse was removed, and a new towing machine was added.
In 2017, she was transferred to the ownership of SeaBulk Towing Incorporated of Fort Lauderdale, Florida. Where the tug retained her name.
In 2021, the tug was acquired by the Signet Maritime Corporation of Houston, Texas. Where she was renamed as the Signet Atlantic.
Powered by two, sixteen cylinder, GE 16V250MDB15 diesel engines. Turning two, stainless steel, fixed pitch, propellers. She is a twin screw tug, rated at 7,200 horsepower.
Her electrical service is provided by two, 180kW Marathon 431PSL6206 generator sets. The tug's capacities are 167,541 gallons of fuel, 3,041 gallons of lube oil, 7,589 gallons of potable water, and 30,719 gallons of ballast.
(Captain Richard Brown, Jeff Thoreson)