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MAOI
Pictured as: the Mahi (Hawaiian Tug and Barge) Photo by: John Rankin

Built in 1980, by the Orange Shipbuilding Company Incorporated of Orange Shipbuilding Orange, Texas (hull #220) as the Maoi for Matson Services Incorporated of Honolulu, Hawaii.

In 2005, the tug was acquired by the Hawaiian Tug and Barge Company of Honolulu, Hawaii. A division of the Young Brothers Company of Honolulu, Hawaii. Where she was renamed as the Mahi.

In 2013, the Hawaiian Tug and Barge Company was acquired by Foss Marine Holdings of Seattle, Washington. Where the tug retained her name. The tug operates under the company's subsidy, the Young Brothers Company of Honolulu, Hawaii.

In 2018, the tug was acquired by the Stabbert Maritime Company of Seattle, Washington. Where she retained her name.

Powered by two, Caterpiller 398 diesel engines. She is a twin screw tug, rated at 1,800 horsepower.


  • Vessel Name: MAOI
  • USCG Doc. No.: 618705
  • Vessel Service: TOWING VESSEL
  • IMO Number: 7939092
  • Trade Indicator: Coastwise Unrestricted, Registry
  • Call Sign: WDF8112
  • Hull Material: STEEL
  • Hull Number: 220
  • Ship Builder: ORANGE SHIPBLDG CO INC
  • Year Built: 1980
  • Length: 71.2
  • Hailing Port: SEATTLE, WA
  • Hull Depth: 12.1
  • Hull Breadth: 23.3
  • Gross Tonnage: 123
  • Net Tonnage: 83
  • Owner:
    MADRONA BAY HOLDINGS LLC
    2629 NW 54TH STREET SUITE 201
    SEATTLE, WA 98107
  • Previous Vessel Names:
    Maoi
  • Previous Vessel Owners:
    Matson Services Inc., MOANA PA'AKAI INC, MOANA PA'AKAI INC, YOUNG BROTHERS LTD, YOUNG BROTHERS LTD, YOUNG BROTHERS LTD, YOUNG BROTHERS LTD, YOUNG BROTHERS LTD, YOUNG BROTHERS LTD