Oklahoma made timely plays on both sides of the ball to beat previously undefeated Texas Tech 38-30 on Saturday in Norman.
OU struggled on offense in the first quarter.
Michael Hunnicutt had a 52-yard field goal attempt blocked, and Brennan Clay lost a fumble that Tech capitalized on.
Red Raider running back Kenny Williams threw a halfback pass to Eric Ward for a three-yard touchdown to give Tech the 7-0 lead with 3:38 to play in the first quarter.
Aaron Colvin had an interception midway through the first quarter, but OU couldn't take advantage of it.
The Sooner offense got going in the second quarter.
OU marched 97 yards in 16 plays, with Blake Bell throwing a 15-yard touchdown pass to Jalen Saunders to tie the game at 7-7 with 5:55 to play in the first half.
The Sooner defense got the ball back, as Jace Amaro had the ball stripped away by Charles Tapper, and it was recovered by Aaron Colvin.
It took OU just one play to score, as Bell went deep to Saunders for a 76-yard touchdown to put Oklahoma on top 14-7.
Bell completed 14 of 22 passes for 249 yards and two touchdowns, plus ran for 44 more yards.
Saunders had six catches for 153 yards and the two scores.
Oklahoma added to the lead on their opening drive of the third quarter, going 86 yards in 11 plays, capping the drive with a Damien Williams 3-yard touchdown run to
make it 21-7 Sooners.
Tech responded on their next drive, as Davis Webb found Eric Ward for a 23-yard touchdown to cut the Sooner lead to 21-14.
Webb was 33 of 53 for 385 yards passing.
The Red Raiders dominated the late part of the third quarter, getting a field goal from Ryan Bustin from 34 yards to make it 21-17.
Tech then recovered an onside kick, and took advantage, as Webb threw a 17-yard touchdown pass to Jakeem Grant to put the Red Raiders on top 24-21.
The Sooners then got the momentum back on their side, as receiver Lacoltan Bester was looking to throw a touchdown pass for the second week in a row.
Bester couldn't find a receiver, though, and took off running instead, scoring on a 35-yard run to put the Sooners back on top 28-24.
Oklahoma took control with a 3-yard touchdown run from Damien Williams early in the fourth quarter to make it 35-24.
Williams led OU in rushing with 97 yards on 19 carries.
Texas Tech responded, getting a one-yard touchdown run from Kenny Williams to make it 35-30 midway through the fourth quarter.
The Sooners then went on a clock-eating drive with the run game, chewing up nearly six minutes of the clock and getting a 37-yard field goal from Hunnicutt to make it 38-30 with 1:17 to play.
The OU defense held Tech to four downs and clinched a 38-30 win, improving to 5-0 at home under Bob Stoops against unbeaten Big 12 teams.
The Sooners improved to 7-1 with the win and 4-1 in Big 12 play, while Tech suffered their first loss to drop to 7-1 and 4-1 in conference play.
The kickoff of the game was delayed for over an hour due to inclement weather.
Texas Tech upset OU the last time the Red Raiders came to Norman in 2011.