Freshman Le'Bryan Nash scored 21 points, Keiton Page added 15 and Oklahoma State recovered after squandering a 10-point halftime lead to beat Tulsa 59-56 on Wednesday night.
The Cowboys (4-2) needed to rally in the final minutes for a second straight home game, but this time, it wasn't nearly as dramatic as the 11-point deficit they overcame in the final 2 1/2 minutes en route to an overtime win against Texas-San Antonio on Nov. 16.
Nash scored six straight points to wipe away most of a seven-point deficit in the final 6 minutes. Page's 3-pointer from the top of the key put Oklahoma State ahead 54-53 with 2:23 remaining, and the Cowboys held on from there.
Jordan Clarkson led Tulsa (4-4) with 18 points and Steven Idlet scored 13, but he missed a potential tying layup at the rim in the final 10 seconds.