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LIBERTY SERVICE
Pictured as: the Liberty Service (Genesis Marine) Photo by: Birk Thomas

Built in 1983, by McDermott Shipyard of Amelia, Louisiana (hull #274) as the Jaramac 63 for the J. Ray McDermott Company of Houston, Texas.

In 1993, the tug was acquired by the Tidewater Marine subsidiary Twenty Grand Offshore of New Orleans, Louisiana. Where she was renamed as the Mac Tide 63.

In 2004, she was acquired by Hornbeck Offshore Transportation of Covington, Louisiana. As part of a purchase program that included her sister vessel the Mac Tide 62. Where the tug was renamed as the Liberty Service. She underwent an extensive renovation including the addition of an upper wheelhouse that allows for a height of eye of 71(ft) above minimum draft.

She is powered by two EMD 16-645 E7B diesel engines turning two four bladed, fixed pitch ducted 120(in)/3,040(mm) propellers for a rated 6,140 horsepower.

Her electrical service is provided by two 125kw / 250kw generating 480V/60 Hz/3-Phase generators. Driven by two Detroit Diesel 8V-71 generators.

The tug's towing gear consists of an INTERcon DD-225/82155 double drum, side by side towing winch outfitted with 3,500(ft) of 2(in) diameter towing cable.

In 2013, Hornbeck Offshore Transportation's tug division was acquired by Genesis Energy of Houston, Texas. Where the tug retained her name.


  • Vessel Name: LIBERTY SERVICE
  • USCG Doc. No.: 660022
  • Vessel Service: TOWING VESSEL
  • IMO Number: 8207604
  • Trade Indicator: Coastwise Unrestricted, Registry
  • Call Sign: WDB9387
  • Hull Material: STEEL
  • Hull Number: 274
  • Ship Builder: MCDERMOTT SHIPYARDS INC
  • Year Built: 1983
  • Length: 117.5
  • Hailing Port: HOUSTON, TX.
  • Hull Depth: 16.4
  • Hull Breadth: 37.1
  • Gross Tonnage: 169
  • Net Tonnage: 115
  • Owner:
    GENESIS MARINE LLC
    919 MILAM STREET SUITE 2100
    HOUSTON, TX 77002
  • Previous Vessel Names:
    JARAMAC 63, MAC TIDE 63
  • Previous Vessel Owners:
    J. Ray McDermott Co. ; TWENTY GRAND OFFSHORE INC, HORNBECK OFFSHORE TRANSPORTATION LLC