In a battle of teams needing points to make the playoffs, the Coyotes jumped past Columbus and Dallas into ninth place in the Western Conference. Phoenix is a point behind Detroit for the final post-season spot in the West.
Smith finally gave up a goal to Nail Yakupov 7:49 into the third, but that was all he allowed. David Moss clinched the victory with a power-play goal that came in the final 10 seconds.
The Oilers lost their fourth in a row and remained four points out of a playoff spot. Devan Dubnyk stopped 29 of 31 shots for Edmonton.