The Mountaineers (13-17, 6-11 Big 12) trimmed a 17-point deficit down to three in the opening minutes of the second half and were within four with 5 minutes left before Andrew Fitzgerald converted a three-point play off a driving layup before hitting a jumper on back-to-back possessions. Pledger followed with a 3-pointer that circled the rim before falling in to make it 76-64 with 3:16 remaining.
Sam Grooms tied his career best with 10 assists for the Sooners (20-9, 11-6), who moved another step closer to an NCAA tournament bid.
Devin Williams' decision last month to sign with an agent and enter the NBA draft has left West Virginia in a tough spot.
Florida State's student government has passed a resolution discouraging Seminoles fans from wearing Native American headdresses at games.
The second annual Gavitt Tipoff Games, eight games between members of the Big East and Big Ten to be played Nov. 14-18, will feature Villanova at Purdue in the opener.