DALLAS — Five years of Texas frustration came crashing down Saturday at the Cotton Bowl. And it fell all over Oklahoma.

An ineffective offense mixed with a mistake-prone defense gave the second-ranked Longhorns all the room they needed to roll through the Sooners 45-12.

The Longhorns (5-0, 2-0 Big 12) convincingly ended one of the most dominant runs in the 100-game series between the Red River rivals. They held the Sooners to 177 yards of total offense and never trailed.

“We didn’t play our best game,” OU quarterback Rhett Bomar said. “I think everybody realized that. We just didn’t execute very well and it showed in the end.”

The Sooners (2-3, 1-1) came in not only riding their longest series winning streak since the 1950s, they’d outscored the Longhorns 189-54 along the way.

It was evident that was going to change Saturday and it didn’t take long for the cards to be laid out on the table.

Adrian Peterson’s ankle injury turned out more severe than OU coach Bob Stoops had thought or indicated. Peterson did not start and only carried the ball three times for 10 yards.

The Sooners rushed for just 77 yards with Kejuan Jones, Jacob Gutierrez and Donta Hickson combining for 56.

The game was put in Bomar’s hands and he had little time to do anything against a blitzing Texas defense and completed only 12-of-33 attempts for 94 yards.

“Our plan was to get him in situations were he’s not comfortable,” Texas linebacker Aaron Harris said. “We wanted to get to him and frustrate him.”

The Longhorns did, sacking Bomar three times and hurrying his throws on numerous occasions.

Instead, it was Texas quarterback Vince Young who ruled the day. He threw for 241 yards, completing 14-of-27 attempts with three going for touchdowns. He also rushed for 45 yards.

The junior’s nimble feet didn’t do much damage. His longest carry went for 15 yards. But clearly, he was different player than the one who struggled against the Sooners last season.

“The improvement in him is obvious,” OU coach Bob Stoops said. “The longer a quarterback is out there, the easier it is to see things and we’ve always recognized he is an excellent player.”

He engineered an 82-yard drive on the opening possession, capping it with a 15-yard touchdown pass to Ramonce Taylor.