Also headed to Rimouski is Maxime Gravel, a third-round pick by the Sea Dogs in 2009, along with a third-round pick in the 2012 draft.
Saint John picks up a first-round pick and a seventh-round pick from Rimouski.
Oke, 18, was a third-round pick of the Sea Dogs in 2009 and put up nine goals for 22 points in 37 games this season.