OSG       Overseas Shipholding Group Inc.

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666 Third Avenue New York, NY 10017 www.osg.com Tel:  212 578 1839 Fax: 212 251 1170 E-mail: mitkin@osg.com Myles R. Itkin Executive Vice President, Chief Financial Officer & Treasurer

June 30, 2011

Mr. Patrick Kuhn

United States Securities and Exchange Commission

Division of Corporation Finance

100 F Street N.E.

Washington, D.C.   20549

Re: Overseas Shipholding Group, Inc.

Form 10-K for the Fiscal Year Ended December 31, 2010

Filed March 1, 2011

File No. 001-06479

Dear Mr. Kuhn:

I refer to the letter dated June 27, 2011 addressed to Overseas Shipholding Group, Inc. (“OSG”) from Lyn Shenk, Branch Chief, and to our conversation of yesterday.  As we discussed, we have agreed that OSG may reply to the letter of June 27, 2011 on or before July 26, 2011.

Sincerely yours,

/s/ Myles R. Itkin

Myles R. Itkin

Executive Vice President, Chief Financial Officer

   and Treasurer

cc:         Lyn Shenk

  James I. Edelson, Senior Vice President, General Counsel and Secretary

  Alan G. Himmelstein, Assistant General Counsel