KANSAS CITY, Mo. (AP) Texas A&M's Big 12 basketball activity has been extended at least one day.

Dash Harris and Khris Middleton drilled key 3-pointers in the last 4 minutes and A&M hit 14 straight foul shots Wednesday night, giving the SEC-bound Aggies a 62-53 victory over Oklahoma in a ragged opening-round match of the Big 12 tournament.

In Thursday's quarterfinals, the ninth-seeded Aggies will meet No. 3 Kansas, which beat them twice while rolling to its eighth straight regular-season Big 12 championship.

"It's always a good game at Kansas," said Middleton. "We just have to master our attention and go over that too and just go out there, execute the game plan we get tonight and just fight tomorrow and compete."

Eighth-seeded Oklahoma, trailing almost the entire second half, sliced the lead to 47-45 on Romero Osby's four free throws before Harris connected for his second 3-pointer at the 3:55 mark.

"It was one of the biggest shots in the game," said A&M's Elston Turner. "Dash, throughout his career, he's hit big shots."

David Loubeau hit a bucket for the Aggies that Sam Grooms answered for the Sooners. Then Middleton's 3-pointer gave A&M a 55-47 lead with 1:42 left.

"We're just excited to keep playing," said A&M coach Billy Kennedy.

Loubeau and Middleton each had 15 points for the Aggies (14-17), playing their last Big 12 tournament before joining the Southeastern Conference on July 1.

Oklahoma (15-16) got 17 points from Osby and 13 from Grooms.

Lon Kruger, wrapping up his first season as Oklahoma coach, said he was happy with his team's attitude.

"Generally, I thought they played with a certain level of enthusiasm, consistently worked hard every day in practice to get better," Kruger said. "I liked that about this group from the start."

The Aggies made their first 14 free throws in the second half after missing their only attempt in the first half. They wound up 15 for 17 for the night.

Texas A&M did not have a field goal the first 5 minutes of the second half but kept the cold-shooting Sooners at bay with four free throws by Loubeau. After Ray Turner's two free throws put the Aggies on top 33-29, Ray Turner took an alley-oop pass from Elston Turner and slammed down the dunk for A&M's first field goal of the half and a 35-29 lead at the 14:56 mark.

A few minutes later, Grooms' layup pulled the Sooners even at 39.

Ray Turner had 12 points and Elston Turner had 14 for the Aggies, who outrebounded the Sooners 37-28.

Elston Turner hit back-to-back 3-pointers and triggered an 18-7 run in the final minutes of the first half that sent the Aggies into intermission with a 27-22 lead.

Middleton's two buckets sliced Oklahoma's lead to 14-13 before Elston Turner, who hit 40 percent from beyond the arc for the year, connected to give the Aggies a 16-14 edge at the 5:40 mark.

Tyler Neal's 3-pointer answered for the Sooners, then Elston Turner who had missed his first five shots canned another 3-pointer and followed that with a bucket on A&M's next possession. His final basket made it 27-20 and gave him 10 points for the half.

Oklahoma guard Cameron Clark, who had scored in double figures in five of the last six games, was 0 for 3 in the first half and finished with six points.