Roy Derek

Edmonton Oilers acquire	Date	Nashville Predators acquire
Derek Roy	December 29, 2014	Mark Arcobello

Vancouver Canucks acquire	Date	Dallas Stars acquire
Derek Roy	April 2, 2013	Kevin Connauton 2013 2nd round pick

Dallas Stars acquire	Date	Buffalo Sabres acquire
Derek Roy	July 2, 2012	Steve Ott Adam Pardy