NORMAN, Okla. -- Oklahoma senior Lexy Keys missed two 3-pointers in the final minute.
Fortunately for the Sooners, she kept shooting. She hit the go-ahead 3-pointer with 4 seconds left to help No. 20 Oklahoma beat third-ranked Texas 71-70 on Wednesday night and clinch the outright Big 12 title.
After a flurry of action, Oklahoma got possession trailing 70-68 with 13.4 seconds remaining. Skylar Vann missed but scrambled and saved the ball to Keys, who drained the shot to push her game total to 16 points.
"Honestly, I think it ended up in the right place, the right time getting there," Keys said.
Texas called timeout after Keys' basket. Madison Booker drove for a game-winner but couldn't get a shot off against solid defense by Keys and Vann.
There was contact on the play.
"Did I get fouled?" Booker said. "I really don't know."
Texas coach Vic Schaefer called that a good answer, and added that the play just didn't go the Longhorns' way.
"She just got down in there a little too tight, a little too far," Schaefer said. "But that's who we wanted taking the shot. No doubt about it."
Payton Verhulst scored 18 points for Oklahoma (21-7, 15-2 Big 12), which split the conference regular-season title with Texas last year.
Oklahoma entered the night with a one-game lead and two games remaining for both teams. The Sooners now have won 12 of 13.
It was Oklahoma's third top-10 win this season. The Sooners beat then-No. 10 Texas on the road on Jan. 24 and returned home to beat then-No. 2 Kansas State a week later.
Oklahoma won this one despite Verhulst making just 6 of 20 shots and Vann, the team's leading scorer for the season, finishing with six points on 2-for-10 shooting.
"What a game," Oklahoma coach Jennie Baranczyk said. "And looking at a stat sheet, we shouldn't have won it, obviously. And Texas is so talented. And yet we just had this never-say-die attitude, and we just kept going and kept going and kept going."
Booker, a freshman, had 26 points, eight rebounds and seven assists for the Longhorns (26-4, 13-4), who had won eight straight since losing at home to Oklahoma last month.
Texas led for most of the game, and the Longhorns were up 60-54 heading into the fourth. Texas' Aaliyah Moore fouled out with 6:33 remaining and the Longhorns up 64-58. Oklahoma chipped away and finally took the lead on a baseline jumper by Keys that put the Sooners up 67-66 with 3:20 remaining.
Verhulst fouled out with 49.6 seconds remaining and Texas up 68-67. Booker made the free throws to put the Longhorns up 70-67, setting up the final sequence.