Trailing 68-65 with 2:02 to play, OU scored on each of its final five possessions in Saturday's 77-74 Bedlam victory.
Buddy Hield fired in back-to-back 3-pointers and Jordan Woodard and Je'Lon Hornbeak combined to go 6-of-6 from the foul line.
Meanwhile, down the stretch for the Cowboys, Le'Bryan Nash was off on a 15-foot jumper, Phil Forte missed a forced 3-pointer and Markel Brown misfired on a potential tying 3 at the buzzer for the Cowboys.
“They made (3s),” said Cowboys coach Travis Ford. “Give them credit. We had a 3 late in the game that was wide open as well. It just didn't go in. We had a good look at the end of the game for a tying 3 that was a really good look.
“So give them credit. We had a couple of open shots that we didn't convert, and they converted theirs.”
Hield's final 3, putting OU ahead for good, was most troubling for Ford.
The Sooner guard was left alone on the left wing when a defender dropped off to help defend OU big man Ryan Spangler.
“We aren't supposed to be helping off Spangler driving,” Ford said. “It was just a defensive mistake. If it was someone else driving it, that's a different story, but we talked about certain guys that you don't help off of.”
SOONERS CAN'T FOUL LATE
After calling a timeout with 4.4 seconds left, there was little question Sooners coach Lon Kruger was setting his team up to foul quickly on the OSU inbounds pass.
But the Sooners couldn't get their hands on Brown — or at least couldn't get the call. Brown's shot, though, missed wide and it didn't matter as Oklahoma finished the season sweep.
“Oh yeah, we tried to foul,” Kruger said. “We had them fouled there at midcourt. Both of our guys said they fouled but it wasn't called. We have to foul with a little more enthusiasm, I guess.”
Kruger was holding his breath as Brown released the shot.
“When Brown was rising up to shoot that one, (I) didn't like the feeling I had because he's a great player,” Kruger said.
NO REST FOR THE WEARY
The Cowboys' losing streak stretched to six games Saturday.
And with a short rotation, they face a quick turnaround with a trip to Baylor coming up Monday.
Not only have the losses mounted, but minutes are mounting, too. All five starters played at least 30 minutes against OU, with Nash on the floor for 39, Brown 37 and Phil Forte 36.
By contrast, only one Sooner reached 30 minutes, while nine played and eight contributed at least 19 minutes.
“We can't feel sorry for ourselves; no one is going to feel sorry for us,” Forte said.
Instead, Forte said, it's on them to rally.
“I want to do this for Markel and Marcus (Smart), those guys that came back for us,” Forte said. “I want to finish this out right for them, so does everyone else.
“All we have is each other right now. Everyone is against us, we just have to stay close as a group and take the court again on Monday. We have a big test on the road and we have to regroup quickly.”
SPANGLER COMES ON STRONG EARLY
After a pair of subpar games by his standards, Spangler set the tone early inside for the Sooners.
Spangler got on the board in the first minute and was dominant in the first half.
He finished with 12 points and 13 rebounds, his first double-double since the first Bedlam meeting. All but three of his rebounds came in the first half.
“The things I do kind of bring energy to my team so if I'm able to start off a game getting some offensive rebounds, some tough rebounds, maybe getting some people open with screens, that's just going to allow us to be a better team,” Spangler said. “I'm going to keep working on coming out strong, letting my team get into a rhythm.”
OSU UP NEXT: AT BAYLOR
Losers of six straight, the Cowboys head back on the road Monday — for the third time in four games — visiting Baylor.
Tip time is 8 p.m. at the Ferrell Center.
OSU (16-9, 4-8 Big 12) fell at home to the Bears, 76-70, in game two of this skid on Feb. 1.
OU UP NEXT: KANSAS STATE
The Sooners finally reached their off week in the Big 12 schedule.
Oklahoma doesn't have a midweek game before hosting Kansas State at 3 p.m. Saturday.
The Sooners (19-7, 8-5 Big 12) lost at Kansas State, 72-66, on Jan. 14.
The game against the Wildcats opens a particularly tough stretch for Oklahoma. OU turns around to play at Kansas two days later before hosting Texas on March 1.
* Smart, serving the second game of his three-game suspension, was not on the floor with the Cowboys. Ford said that was per Big 12 instruction.
* OSU public address announcer Larry Reese, who normally speeds through the sportsmanship announcement just before tip, slowed considerably for Saturday's game. Sportsmanship, of course, has taken center stage following the incident at Texas Tech that led to Smart shoving a fan, who admittedly said something derogatory toward the Cowboy sophomore.
* The win snapped the Sooners' four-game losing streak in Stillwater.
* The OSU Final Four team from 2004 was honored at halftime, with several players and coach Eddie Sutton returning to be recognized. Along with Sutton, who later attended the Arkansas-LSU game in Fayetteville: players Tony Allen, Joey Graham, John Lucas, Ivan McFarlin and Janavor Weatherspoon; athletic trainer Murphy Grant; and manager Derek Joiner.
* OU finished 12 of 29 from the arc, resulting in their fourth game of at least 12 made 3s this season.