Pictured: the OSG Vision Photo by: John Curdy

(OSG Ship Management Inc., OSG DELAWARE BAY LIGHTERING LLC., OSG COLUMBIA LLC., OSG COURAGEOUS LLC., OSG ENDURANCE LLC., OSG ENTERPRISE LLC., OSG HONOUR LLC., OSG INDEPENDENCE LLC., OSG INTREPID LLC., OSG NAVIGATOR LLC.)

Founded in 1948, the Overseas Shipholding Group is a United States based provider of energy transportation services in the United States, and across the world.

In 2006, the Maritrans Operating Partnership Incorporated of Tampa Florida was acquired by Overseas Shipholding Group (OSG) of New York, New York.

In 2024, the company was acquired by Saltchuk Resources Incorporated, of Seattle, Washington. Which is a privately owned, family investment company. That primarily focused on maritime transportation assets. However, OSG will operate as a standalone business unit within Saltchuk, becoming a member of its family of diversified freight transportation, marine service, and energy distribution companies.