Markel Brown scored 18 points, Le'Bryan Nash added 16 and No. 15 Oklahoma State corralled Texas star Myck Kabongo to beat the Longhorns 78-65 on Saturday.
A showcase of two of the Big 12's marquee point guards ended up being a sloppy one, with Kabongo committing a career-high seven turnovers while the Cowboys' Marcus Smart had five.
Oklahoma State (22-6, 12-4 Big 12) took advantage of two of Kabongo's turnovers to score the final eight points of the first half and start an 18-2 run that carried beyond halftime. By the time it was over, the Cowboys were firmly in front at 47-33 after Nash drove through traffic for a right-handed slam.
The Longhorns (13-16, 5-11) tried to deploy their full-court press, but couldn't duplicate a 22-point comeback from their last game.