Exelon announced that Thomas S. O’Neill has been promoted to senior vice president and general counsel. O’Neill was formerly senior vice president, Energy and Regulatory Policy and general counsel at Exelon utility ComEd. Prior to joining ComEd, O’Neill served as senior vice president and Chief Operating Officer of Exelon Transmission Company, and held leadership roles with Exelon Nuclear Partners and Exelon Nuclear. In his new role, which he assumed on January 1, O’Neill will serve as the top legal advisor to Exelon’s senior management and oversee the company's legal and corporate governance departments. O’Neill replaces Darryl Bradford, who retired at the end of 2016 after a 13-year career with the company. O’Neill will report to William A. Von Hoene, Jr., Exelon’s senior executive vice president and Chief Strategy Officer.