Jeff Gordon will start second in Sunday's 500-mile race, followed by Jimmie Johnson, Kurt Busch and Ryan Newman.
Stewart hopes to build on what so far has been a banner year in his first season as an owner and driver. A second-place finish last week at Dover catapulted the Stewart Haas Racing driver to the top of the Sprint Cup standings.
He is the first driver/owner to lead in points since Alan Kulwicki won the 1992 Cup championship. Stewart has a first-place finish at Pocono in 2003, and was runner-up last year.