Keselowski led the final nine laps, conserving just enough fuel to stave off Earnhardt for his first win since taking Talladega 75 races ago.
Earnardt finished second for the second week in a row in a fuel mileage race. Earnhardt appeared to have enough to make a late charge on Keselowski. That push never came — though Earnhardt did move up to third in the points standings.
Polesitter Kurt Busch led for 152 laps Sunday and finished ninth. He had to stop for gas as the leader with 10 laps remaining.