AUSTIN (AP) — Oklahoma State’s Ramon Richards intercepted a Sam Ehlinger pass in the end zone in overtime and Matt Ammendola kicked a field goal, giving the No. 10 Cowboys a 13-10 victory over Texas. The Cowboys (6-1, 3-1 Big 12) scored the winning points on a 34-yard field goal by Ammendola on the first possession of OT. He missed a 29-yard attempt in the fourth quarter. Texas (3-4, 2-2) had a first down on the Oklahoma State 12 after a pass interference penalty against A.J. Green.