Built in 2009, by VT Halter Marine Incorporated of Pascagoula, Mississippi (hull #1975) as the Commitment for Crowley Marine Services Incorporated of San Francisco, California.
She was the fourth Resolve/650 class Articulated Tug and Barge (ATB) constructed for Crowley Marine Services Incorporated.
Powered by two, eight cylinder, Wartsila 12V26A diesel engines. With Reintjes GMBH reduction gears, at a ratio of 3.955:1. The tug's engines are HFO compatible, which allow for the ability to operate on both light fuels, and Heavy Fuel Oil. Turning two, Wartsila MP/00865.M3H11, controllable pitch propellers. She is a twin screw tug, rated 9,280 horsepower.
Her electrical service is provided by two, 424kW, Cummins HC.M534D1 generator sets. With a third, auxiliary 424kW, Cummins HC.M534D1 generator set. The tug's capacities are 33,549 gallons of diesel fuel, 138,690 gallons of fuel, 4,490 gallons of lube oil, 102,763 gallons of ballast, and 15,322 gallons of water.
Fitted with an INTERcon coupler system, with 50(in) diameter pins. The tug is "married" with the 560(ft), by 40(ft), by 74(ft), 180,000(bbl), double hulled barge, The 650-6. Which was constructed simultaneously in 2009, by VT Halter Marine Incorporated of Pascagoula, Mississippi (hull # 1971) for Crowley Marine Services Incorporated