Overseas Shipholding Group to Present at Jefferies Shipping Conference

Jefferies 2011 Global Shipping Conference

NEW YORK--(BUSINESS WIRE)-- Overseas Shipholding Group, Inc. (NYSE: OSG), a market leader in providing energy transportation services, announced today that Myles Itkin, Executive Vice President, Treasurer and Chief Financial Officer, will present at the Jefferies 2011 Global Shipping Conference on Wednesday, September 7, 2011 at 11:00 a.m. ET. The conference will be held in New York City.

A live webcast of the conference presentation and the accompanying slide presentation will be available on the Company’s website at www.osg.com under Webcasts and Presentations in the Investor Relations section. The webcast replay of the presentation will be available for 90 days.

About OSG

Overseas Shipholding Group, Inc. (NYSE: OSG), a Dow Jones Transportation Index company, is one of the largest publicly traded tanker companies in the world. As a market leader in global energy transportation services for crude oil and petroleum products in the U.S. and International Flag markets, OSG is committed to setting high standards of excellence for its quality, safety and environmental programs. OSG is recognized as one of the world’s most customer-focused marine transportation companies and is headquartered in New York City, NY. More information is available at www.osg.com.