Robinson was 13-for-20 for 238 yards and added 57 rushing yards. Dez Bryant had a 11 receptions for 212 yards and two touchdowns for the Cowboys (7-0, 3-0 Big 12), who will visit top-ranked Texas next Saturday.
Kendall Hunter carried the ball 26 times for 93 yards and Keith Toston had 12 carries for 56 yards and two scores for Oklahoma State, which has an eight- game winning streak.
Robert Griffin was 15-for-27 for 162 yards for the Bears (3-4, 1-2), who have lost three of their last four games.
Scarlett Johansson steps out with fiance after pregnancy reveal
Jessica Simpson shares three-way kiss with friends in photo