OKLAHOMA CITY--(BUSINESS WIRE)--Devon Energy Corp. (NYSE: DVN) today announced that it has entered into a definitive agreement to sell its 50 percent ownership interest in Access Pipeline to Wolf Midstream Inc., a portfolio company of Canada Pension Plan Investment Board, for CAD $1.4 billion, or USD $1.1 billion, using current exchange rates. The agreement also includes the potential for an incremental CAD $150 million payment with the sanctioning and development of a new thermal-oil project o