Benson was placed on waivers by Edmonton on Thursday.
Benson (knee) was recalled from his conditioning stint and removed from injured reserve Sunday.
Benson (knee) has been loaned to AHL Bakersfield for a conditioning stint Thursday.
Benson (knee) was placed on long-term injured reserve Monday, per CapFriendly.
Coach Jay Woodcroft said that Benson (knee) is out week-to-week, according to Daniel Nugent-Bowman of The Athletic.
Benson (lower body) will not return to Monday's preseason game against Vancouver, Daniel Nugent-Bowman of The Athletic reports.
Benson signed a one-year, two-way contract with the Oilers on Saturday, per Daniel Nugent-Bowman of The Athletic.
Benson hit the waiver wire Wednesday.
Benson scored a goal and went minus-2 in Sunday's 7-3 loss to the Wild.