Texas guard D.J. Augustin (14) attempts to get a shot past Oklahoma State's Marcus Dove, left, and Terrel Harris. Augustin scored 24 points in the Longhorns' 66-59 victory Friday in Kansas City, Mo.

Texas guard D.J. Augustin (14) attempts to get a shot past Oklahoma State's Marcus Dove, left, and Terrel Harris. Augustin scored 24 points in the Longhorns' 66-59 victory Friday in Kansas City, Mo.

Kansas City, Mo. ? D.J. Augustin wiped out Oklahoma State’s halftime lead with a single shot. A few minutes later the quick and crafty point guard had obliterated all of the Cowboys’ hard-earned momentum and put No. 6 Texas on the road to a 66-59 victory Friday in the Big 12 tournament.

Damion James had 23 points and 11 rebounds, and Augustin powered a 14-0 run starting the second half for the top-seeded Longhorns, who also ran an uncharacteristic zone defense that seemed to confuse the Cowboys.

“We had to slow the whole team down,” said Augustin, who led the conference in assists for the second straight year and was second in scoring. “We needed to get stops on defense and not let them get easy baskets.”

Ibrahima Thomas had 19 points for Oklahoma State, which trailed by as many as seven points in the first half before taking a 33-32 halftime lead.

Oklahoma 54, Colorado 49

Kansas City, Mo. – Tony Crocker had 12 points, and Oklahoma survived an off day from all-conference forward Blake Griffin.

Oklahoma got off to a fast start, stalled, then needed a late run to hold off the pesky Buffaloes.

Longar Longar had 11 points and nine rebounds, but turned it over seven times. Taylor Griffin added 10 points for OU, which moves on to face Texas in today’s semifinals.