After an evenly-matched regulation, overtime was not kind to the Sooners, as Texas A&M pulled ahead early and knocked off Oklahoma 81-75, sending the Sooners to their fourth conference loss.
With just one minute left in regulation and the game tied, Andrew Fitzgerald hit a short jumper and was fouled to give the Sooners a 65-62 lead. On the Aggies' next trip down the floor, Elston Turner hit a three-pointer to tie the game with 41 seconds left in regulation.
Steven Pledger missed on a buzzer-beater from the wing as time expired that would have spared overtime for the Sooners.
On the Aggies' first possession of extra time, Dash Harris hit one of his two free throw attempts and, after another Pledger miss, David Loubeau converted from under the basket to give Texas A&M a 68-65 lead.
Andrew Fitzgerald scored on a layup on the Sooners' next possession to close the game to one, but Elston Turner scored another three-pointer to give TAMU a 71-67 lead less than two minutes into overtime.
Still trailing by four with two minutes left, the Sooners attempted to turn the game into a free throw contest, but the Aggies hit on eight of their 10 attempts to close the game out.
Turner finished with a game-high 25 points, dishing out four assists and grabbing four boards in the process, while Harris contributed 16 points, six assists and four rebounds in the win.
Romero Osby set the pace for the Sooners, scoring 18 points on an 8-of-10 performance from the floor, in addition to coming down with five rebounds.
Oklahoma will face yet another tough test Tuesday, as they welcome the Baylor Bears at 7 p.m., who are coming off of back-to-back losses.