NORMAN, Okla. (AP) -- There was no second-half fade by Oklahoma this time, only domination from start to finish for one of its bigger victories in recent years.

The Sooners, who built big leads before losing to Notre Dame and Texas in their past two games, scored on their fist six possessions Saturday night and steamrolled No. Texas A&M (No. 10 ESPN/USA Today, No. 13 AP) 51-6.

	Oklahoma's Josh Heupel scores on a keeper as he slides past Texas A&M linebacker Brian Gamble (17) and Jared Morris (46).

The Aggies had beaten Oklahoma by a combined 80-7 the past two years, but had no answers for the Sooners' offense and suffered the third-worst loss in the program's 105-year history.

"Oklahoma really killed us," A&M offensive guard Chris Valletta said. "They beat us, they beat us bad. They pulled out all the stops and they deserve to win."

Josh Heupel ran the offense to near perfection, sneaking in for three touchdowns and getting three more through the air. He finished 31-of-50 for 372 yards with one interception.

Oklahoma (4-2, 2-1 Big 12) finished with 552 yards and, after giving up more than 500 to Notre Dame and Texas, held the Aggies to 230.

"It was fortunate for us to go out and execute to our potential," said first-year coach Bob Stoops, who took over a program that was 23-33-1 the previous five years. "That's what we've been pushing for and I think we were able to do that tonight."

Texas A&M coach R.C. Slocum had warned that his team could not afford to get into a shootout.

"It really wasn't a shootout. We got shot," said Slocum, who was denied his 100th career victory.

"With the circumstance of playing here, them having an extra week to prepare for us, I knew that we would have to play well and really play better than we've been playing to win this game, and we obviously didn't do that."

The defeat was A&M's worst since a 46-0 loss to Baylor in 1901.

The Aggies (5-2, 2-2) seemed confused by Oklahoma's variety of formations and plays. The Sooners used a hook-and-lateral, successfully faked a punt and field goal, threw several shovel passes that went for big gains, and at times lined up with three receivers on each side of the field and only three interior linemen.

Heupel threw 40 times in the first half alone, when Oklahoma had the ball for 22 minutes, ran 60 plays and picked up 20 first downs.

Backup quarterback Patrick Fletcher gained 8 yards on the fake field goal to keep Oklahoma's first drive alive, and three plays later Heupel scored from the 1.

Three shovel passes netted 31 yards on the next possession, and Heupel also had a 26-yard completion before hitting Curtis Fagan on an 8-yard scoring pass. Later, a 41-yard run on a fake punt set up the first of Tim Duncan's three field goals.

The hook-and-lateral that went for 17 yards was one of four plays of 12 yards or more on Oklahoma's third touchdown drive, which Heupel ended with a sneak for a 24-0 lead.

It was 27-0 before the Aggies finally scored on a 37-yard pass from Randy McCown to Chris Taylor. McCown came in averaging nearly 255 yards per game passing, but was just 9-of-21 for 131 yards before leaving the game midway through the third quarter with a separated left shoulder.

His replacement, Vance Smith, threw an interception on his first play to set up Heupel's second TD pass, a 22-yarder to tight end Trent Smith. Heupel also hit Brandon Daniels on a 26-yard touchdown pass late in the third.

Oklahoma's last victory over a ranked team came in the fifth game of 1996, a 30-27 victory over No. 25 Texas. The 51 points were the most by the Sooners in a Big 12 game.