Gagner was called up from AHL Bakersfield on Wednesday, Jason Gregor of Sports 1440 Edmonton reports.
Gagner was reassigned to AHL Bakersfield on Wednesday, per Daniel Nugent-Bowman of The Athletic.
Gagner is expected to remain in the NHL if he clears waivers Wednesday, Daniel Nugent-Bowman of The Athletic reports.
Gagner was placed on waivers Tuesday by Edmonton.
Gagner has been scratched for six of the Oilers' 10 games in February.
Gagner scored a goal on two shots in Saturday's 3-1 win over the Flames.
Gagner (undisclosed) will be in action versus Seattle on Thursday, Mark Spector of Sportsnet reports.
Gagner (undisclosed) won't be in the lineup Tuesday versus the Maple Leafs, according to Jason Gregor of Sports 1440 Edmonton.
Gagner (undisclosed) is still banged up, which is why he didn't take the spot of Ryan McLeod (illness) for Saturday's game versus the Canadiens, Jason Gregor of Sports 1440 Edmonton reports.
Gagner (concussion-like symptoms) pronounced himself good to go on Friday, Tony Brar of Oilers TV reports.