HAMILTON, Bermuda, Nov. 9, 2012 /PRNewswire/ -- OneBeacon Insurance Group, Ltd. (NYSE: OB ) (the "Company") today announced that its wholly-owned subsidiary, OneBeacon U.S. Holdings, Inc. (the "Issuer"), has closed its previously announced offering of $275 million aggregate principal amount of 4.60% Senior Notes due 2022 (the "Senior Notes"). The Issuer intends to use the proceeds of the offering to redeem all of its outstanding 5.875% Senior Notes due 2013 (the "2013 Notes") and today it delivered notice that it had called for redemption of all of the 2013 Notes that remain outstanding. Payment for the redemption of the 2013 Notes is expected to be made on December 10, 2012. The Company and the Issuer have filed a registration statement on Form S-3 (including a prospectus) with the Securities and Exchange Commission (the "SEC") for the offering to which this communication relates and the Senior Notes were sold pursuant to that registration statement and prospectus.