A Markel Brown three pointer with 12 seconds left gave Oklahoma State the edge in a 73-72 win at West Virginia University.
Brown finished with 12 points, and has now scored in double figures in eight straight games.
Pokes star Marcus Smart had 22 points and 13 rebounds in the OSU win.
The win gives the Cowboys two straight in conference play and improved them to 14-2 on the year.
OSU hosts TCU with tip at seven p.m. on Wednesday, January 15.