STILLWATER — Patrick Lavine scored on a 21-yard interception return, and No. 17 Oklahoma State came up with a final defensive stand to keep its slim hopes for a Big 12 championship alive with a 24-17 win against Texas Tech on Saturday night. After allowing some rare pressure against quarterback Zac Robinson in the first half, the Cowboys (8-2, 5-1) relied on their Big 12-leading rushing attack to drain the clock in the second half. Oklahoma State piled up 207 yards on the ground after halftime and controlled the ball for 22 minutes. Tech (6-4, 3-3) got one last chance after Robinson fumbled with 98 seconds left on a play that left both him and defender Jamar Wall shaken up. Tramain Swindall dropped Taylor Potts' fourth-down pass to doom the final drive by the Red Raiders.