...NEW YORK (Standard & Poor's) June 26, 2015--Standard & Poor's Ratings Services said today that its ratings on OneAmerica Financial Partners Inc. (OneAmerica) are unaffected by the announcement that OneAmerica plans to acquire Bank of Montreal's U.S. retirement services business. The acquisition will increase OneAmerica's assets under administration by about $26 billion dollars. Retirement services is OneAmerica's second-largest reporting segment (behind individual life and financial services) and we expect this business to continue to drive growth for the company during the next few years. We expect the transaction to close by third-quarter 2015. Under Standard & Poor's policies, only a rating committee can determine a credit rating action (including a credit rating change, affirmation or withdrawal, rating outlook change, or CreditWatch action). This commentary and its subject matter have not been the subject of rating committee action and should not be interpreted as a change to, or affirmation...