Columbia, Mo. ? The final 50 seconds of the first half turned the game around for No. 22 Oklahoma State.

The Cowboys fell behind by 17, then rallied to beat Missouri, 20-17, on a 28-yard field goal by Jason Ricks with 55 seconds to play.

“There was never any time that I didn’t believe that this team was not going to have the resolve to come back,” OSU coach Les Miles said.

The Cowboys (6-1, 3-1 Big 12 Conference) drove 78 yards to set up the winning kick. The drive was kept alive when Donovan Woods connected with his brother, D’Juan Woods, for a 27-yard gain on third-and-four from the Oklahoma State 42.

Missouri (4-3, 2-2) lost its second straight game and ended a nine-game home winning streak.

The Tigers appeared headed for an easy win after going ahead 17-0 with 54 seconds left in the first half. But the Tigers allowed Oklahoma State to drive 80 yards in 50 seconds, scoring on a 12-yard pass from Woods to Woods with four seconds left in the half.

“It was very important,” tailback Vernand Morency said. “It let us come into the locker room just with that extra fight.”

The drive was especially puzzling considering Oklahoma State came into the game with the nation’s 110th-ranked passing offense. The Cowboys were able to use a mix of passes and runs on the drive, including runs of 21 and 19 yards by Morency.

“It was a great drive on their part,” Missouri coach Gary Pinkel said. “And all we had to do was tackle a guy in bounds one time because of the way it was going, but we didn’t make the plays you had to make there.”

Morency carried 31 times for 173 yards, bettering the 163.3 yards he averaged entering the game, second-best in the nation. Donovan Woods carried 10 times for 71 yards — 69 of those coming on two runs — and was 7-of-13 for 110 yards and one interception.

After controlling the ball for more than 21 minutes in the first half, the Tigers could muster just four first downs and 87 total yards in the final 30 minutes. The Tigers had the ball less than 12 minutes of the final half.

No. 8 Texas 51, Texas Tech 21

Lubbock, Texas — Vince Young had a career-high 300 yards of total offense, ran for four touchdowns and threw for another to lead Texas.

Cedric Benson, the nation’s leading rusher coming in, finished with 168 yards on 38 carries and one touchdown for Texas (6-1, 3-1 Big 12).

Late in the first quarter he became the sixth player in NCAA Division One history to rush for 1,000 yards in four consecutive seasons.

Sonny Cumbie completed 34 of 51 passes for 403 yards and a touchdown for the Red Raiders (4-3, 3-2), but the numbers didn’t produce many points.

No. 17 Texas A&M 29, Colorado 26, OT

College Station, Texas — Todd Pegram kicked a 19-yard field goal in overtime, and Lee Foliaki recovered a fumble on the next possession, giving Texas A&M a victory.

After Pegram made his fourth field goal of the game, Foliaki poked the ball away from Bobby Purify on the second play of Colorado’s possession.

Reggie McNeal finished with 382 yards of offense, and Courtney Lewis scored two touchdowns, leading the Aggies (6-1, 4-0) to their sixth consecutive win. It’s A&M’s longest winning streak since 1998, when the Aggies won their only Big 12 championship.

Purify led Colorado (4-3, 1-3) with 130 yards on 20 carries with one touchdown.

Kansas State 45, Nebraska 21

Manhattan — Backup quarterback Allen Webb rushed for 147 yards and scored four times, and Darren Sproles broke two offensive records, leading Kansas State.

Webb, starting in place of injured Dylan Meier, scored on runs of 13, 8, 1 and 9 yards for Kansas State (3-4, 1-3 Big 12), which broke a three-game losing streak.

He would have tied Kansas State’s single-game record with five TDs if he hadn’t fumbled just as he was starting to cross the goal line in the fourth quarter.

The Wildcats, who snapped a 29-game losing skid to the Huskers in 1998, now have beaten their former tormentors three years in a row and four of the last five.

Nebraska (4-3, 2-2) remains winless in Big 12 road games under first-year had coach Bill Callahan.

Iowa State 26, Baylor 25

Waco, Texas — Stevie Hicks finally scored after 260 career carries, and 300-pound defensive tackle Brent Curvey rumbled 65 yards with Iowa State’s first fumble return for a touchdown in eight years.

The Cyclones (3-4, 1-3 Big 12) snapped their 13-game Big 12 losing streak.

Iowa State hadn’t won a conference game since beating Missouri, 42-35, on Nov. 2, 2002. A few weeks after that, the Cyclones — who had a winning overall record that season — went to their third straight bowl game.

Baylor (2-5, 0-4) has lost 11 straight Big 12 games since coach Guy Morriss won his conference debut over Colorado last October. The previous 10 had been by an average margin of 39 points.