 At McGill he was selected as the Articles Editor for the "McGill Law Journal".In addition to his current roles as chairman of EnCana and the Royal Bank of Canada, O'Brien is a board member at Enerplus, Range Royalty, and Spur Resources and has previously served as a director at Molson Coors Brewing Company, TransCanada Corporation, Fairmont Hotels and Resorts, Inco Limited and the C. D. Howe Institute.From 1995 to 2002, he was President and CEO of Canadian Pacific Railways Limited.