STILLWATER, Okla. — Bria Holmes scored 21 points and West Virginia closed the game on a 15-2 run, including the last seven points, to upset No. 11 Oklahoma State 71-67 Saturday.The Mountaineers (13-1, 2-0 Big 12) ran their winning streak to 13 while ending the Cowgirls' (12-1, 1-1) best-ever start.Asya Bussie added 13 and Christal Caldwell had 12 for West Virginia. LaShawn Jones scored 18 and Tiffany Bias and Brittany Atkins had 13 each for OSU.Two free throws by Bias gave OSU a 65-56 lead with 5 minutes left but WVU scored eight straight. Bias made a layup to make it 67-64 at 2:25 when the Mountaineers began a string to the foul line. They made just 5 of 10 to go with a Holmes layup but OSU couldn't capitalize. The Cowgirls missed two 3's before Caldwell's free throw with 3 seconds left iced it.