OSG, DHT Announce Exercise of Overallotment Option

Overseas Shipholding Group, Inc. (OSG) and Double Hull Tankers, Inc. (DHT) announced that Merrill Lynch & Co. and UBS Investment Bank have exercised their option to purchase 750,000 shares of common stock of DHT. OSG granted the underwriters the 30-day option to purchase up to an additional 750,000 shares of common stock for the purpose of covering overallotments in connection with its previously announced offering of 5,000,000 shares of common stock of DHT. OSG expects to recognize an additional gain from the sale of the 750,000 shares of approximately $2 million in the second quarter of 2007. After completion of the sale, OSG's beneficial ownership of DHT's common stock will be reduced from approximately 12.5%, or 3,751,500 shares, to approximately 10.0%, or 3,001,500 shares. This sale was made pursuant to DHT's existing shelf registration statement. DHT will not receive any proceeds from this sale of its common stock.