Built in 1977, by Main Iron Works of Houma, Louisiana (hull #322) as the Mikiala for the Dillingham Tug and Barge Corporation of Honolulu, Hawaii. A division of the Dillingham Corporation of Honolulu, Hawaii.
In 1986, the Dillingham Corporation shed its maritime assets in favor of real estate investment, with Dillingham Tug and Barge and Young Brothers being acquired by Hawaiian Electric Industries Incorporated (HEI) of Honolulu, Hawaii. At this time, Dillingham Tug and Barge's corporate name was reverted back to Hawaiian Tug and Barge.
In 1991, the Hawaiian Tug and Barge Company renamed the tug as the Mikiala II.
In 1999, Saltchuk Resources Incorporated of Seattle, Washington, acquired the maritime assets of HEI: the Hawaiian Tug and Barge Company, and the Young Brothers Company.
In 2009, the tug was transferred to the Young Brothers Company of Honolulu, Hawaii. Where she retained her name.
In 2013, the Hawaiian Tug and Barge Company, and the Young Brothers Company. Were absorbed into the Foss Marine Holdings division of Saltchuk Resources. With the The Hawaiian Tug and Barge Company having been consolidated into Young Brothers Limited. Which is operated as an independent subsidiary of Foss Maritime Company.
Powered by two, sixteen cylinder, Caterpillar 3512B diesel engines. With Rolls Royce 900H z drives. For a rated 3,300 horsepower.
Her deck equipment consist of a Markey winch, mounted on the bow. Outfitted with 600(ft) of 10(in) nylon line, with a 60(in) by 8(in) pendant.