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COLUMBIA
Pictured as: the OSG Columbia (Overseas Shipholding) Photo by: Captain Peter

Built in 1981, by Main Iron Works Incorporated of Houma, Louisiana (hull #359) as the Columbia for the Interstate Oil Transportation Company of Philadelphia, Pennsylvania.

At the time, the Interstate Oil Transportation Company operated two fleets. Their Northeast Fleet, which was referred to as the "Green Fleet." Operated in Philadelphia, Pennsylvania. And their Southern Fleet, which was referred to as the "White fleet" which operated out of Tampa, Florida.

In 1981, the Interstate Oil Transportation Company was acquired by the Southern National Resources Company of Birmingham, Alabama. The new company was named the SONAT Marine Company Incorporated of Birmingham, Alabama. Where the tug retained her name.

In 1987, the SONAT Marine Company was acquired by the the Maritrans Operating Partnership of Tampa, Florida. Where the tug retained her name. Maritrans was formed by group of managers from the SONAT Marine Company. Who offered to form a partnership to raise the funds necessary to purchase the company. These eleven partners included some individuals who had worked for the Interstate Oil Transportation Company since the 1950's.

In March of 1989, the Exxon Valdez ran aground in Prince William Sound near Valdez, Alaska. And in 1990, the Oil Pollution Act of 1990 was passed calling for the double hulling of all petroleum carrying vessels by January 1st of 2015. As well, as other stipulations that effected Maritrans including manning, preparedness, and spill prevention. Maritrans filed suit to fight the stipulations set fourth by OPA '90.

By the mid 1990's, the Maritrans Operating Partners had begun to consolidate its business. By first, backing out of the black oil trade, and carrying only petroleum products and petrochemicals. The phosphate trade, and local transportation in Baltimore, Maryland that was part of the Harbor Towing subsidiary did not fit into Maritrans's new business model. As Maritrans backed out local transportation companies emerged, and established operations in the area. They included the Bouchard Transportation Company of Melville, New York and the Vane Brothers Company of Baltimore, Maryland.

In 2006, the Maritans Operating Partnership was acquired by Overseas Shipholding Group of New York, New York. Where the tug was renamed the OSG Columbia.

In 2019, the tug was phased out of active service, and laid up.

The tug is powered by two, sixteen cylinder, EMD 16-645-E7B diesel engines. Turning two, stainless steel, fixed pitch propellers. She is a twin screw tug, rated at 6,140 horsepower.

Outfitted with a Bludworth coupler system. Her electrical service is provided by two, 125kW generator sets. The tug's capacities are 117,292 gallons of fuel.
(Captain Eric Takakjian)


  • Vessel Name: COLUMBIA
  • USCG Doc. No.: 06411350
  • Vessel Service: TOWING VESSEL
  • IMO Number: 80247270
  • Trade Indicator: Coastwise Unrestricted, Registry
  • Call Sign: WDD6400
  • Hull Material: STEEL
  • Hull Number: 359
  • Ship Builder: MAIN IRON WORKS, INC.
  • Year Built: 1981
  • Length: 131
  • Hailing Port: WILMINGTON, DE.
  • Hull Depth: 19.2
  • Hull Breadth: 37
  • Gross Tonnage: 185
  • Net Tonnage: 125
  • Owner:
    OSG COLUMBIA LLC
    TWO HARBOUR PLACE
    302 KNIGHTS RUN AVENUE
    TAMPA, FL 33602
  • Previous Vessel Names:
    COLUMBIA
  • Previous Vessel Owners:
    Interstate Oil Transportation Co., SONAT Marine Co., Maritrans Operating Partners LLP, MARITRANS COLUMBIA CO