Multiple sources are reporting that Stewart-Haas Racing will announce later today that Mobil 1 will join Office Depot as a primary sponsor on Tony Stewart's No. 14 NASCAR Sprint Cup Series Chevrolet in for 2011, replacing Old Spice. ESPN reports that Office Depot is "believed to have 22 races as the primary."

Mobil 1 is in the final year of a deal with Penske Racing's No. 77 Dodge driven by Sam Hornish Jr., and announced earlier this year that it would be leaving the team. Hornish's future with Penske beyond this season remains uncertain.