Summary of ONEBEACON INSURANCE GROUP, LTD.

Item 7.01. Regulation FD Disclosure

In accordance with General Instruction B.2. of Form 8-K, the following information shall not be deemed to be "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended. OneBeacon Insurance Group, Ltd. (the "Company") and OneBeacon U.S.
Holdings, Inc. (the "Issuer") disclaim any intention or obligation to update or revise this information.

Attached as Exhibit 99.1 and incorporated herein by reference, is a copy of the Company's press release dated November 6, 2012, announcing that the Issuer intends to commence an offering of senior notes due 2022. The senior notes will be sold pursuant to the Issuer's and the Company's shelf registration statement and the prospectus on file with the Securities and Exchange Commission. The managing underwriters and joint book-running managers for the transaction are Barclays Capital Inc., Merrill Lynch, Pierce, Fenner & Smith Incorporated and HSBC Securities (USA) Inc. The Company intends to use the proceeds of the offering, plus cash on hand and cash from short-term investments, to redeem all of the Issuer's outstanding 5.875% Senior Notes due 2013.

Item 9.01. Financial Statements and Exhibits

Exhibit No.                            Description of Exhibit

   25.3        The Statement of Eligibility on Form T-1 under the Trust Indenture Act
               of 1939 of the The Bank of New York Mellon Trust Company, N.A. under
               the OneBeacon U.S. Holdings, Inc. Senior Indenture (hereby
               incorporated by reference into the Registration Statement on Form S-3
               (Registration No. 333-174867) originally filed with the Securities and
               Exchange Commission on June 13, 2011).

   99.1        Press Release dated November 6, 2012.