Petry has missed the past two games after being hit in the ribs by a puck against the Boston Bruins last Wednesday.
"There's nothing broken, just bruised," Petry said. "It [hurt] to flex my core and to rotate, but it feels a lot better now. I'm back to normal."
Petry is second among Oilers defensemen with 15 points and will jump back into his normal spot in the lineup on the right side of Andrew Ference.
But not all the injury news from the Edmonton room was good Tuesday, as coach Todd Nelson said the Oilers will be without Yakupov, who tweaked his groin against the Anaheim Ducks on Saturday and was unable to finish practice Monday before the team departed for the Twin Cities.