Staying on track while most of the leaders pitted put Penske Racing's Brad Keselowski in position to grab the lead. He did so, overhauling teammate Kurt Busch after the restart, and holds the lead after 20 laps in the Samsung Mobile 500. Polesitter David Ragan and Carl Edwards, both of whom pitted, are in tow.
Ragan jumped out to the early race lead, while teammate Matt Kenseth moved past Edwards to take over the second spot. Meanwhile, Jimmie Johnson, who started sixth, backslid outside the top-twenty.
The first caution flew at lap 10 for a blown engine by the No. 37 Ford of Tony Raines. Raines, who's team was 35th in Sprint Cup owner points, will have to qualify on time next week.
Under that caution, Kevin Harvick had a penalty for an out-of-control tire while Tony Stewart and Dave Blaney collided, doing significant damage to the right-front of Stewart's Chevrolet.