Lamb TDs, defense lift No. 6 OU past 11th-ranked Texas 34-27

Texas quarterback Sam Ehlinger (11) is helped up by running back Roschon Johnson (2) after being sacked in the second half of an NCAA college football game against Oklahoma at the Cotton Bowl, Saturday, Oct. 12, 2019, in Dallas. Ehlinger was sacked 9 times as Oklahoma won 34-27. (AP Photo/Jeffrey McWhorter)

Oklahoma quarterback Jalen Hurts (1) puts on the Golden Hat after beating Texas 34-27 in an NCAA college football game at the Cotton Bowl, Saturday, Oct. 12, 2019, in Dallas. (AP Photo/Jeffrey McWhorter)

Oklahoma wide receiver CeeDee Lamb (2) scores on his third touchdown reception of the game in front of Texas defensive back D'Shawn Jamison (5) in the second half of an NCAA college football game at the Cotton Bowl, Saturday, Oct. 12, 2019, in Dallas. Lamb finished the game with 171 receiving yards as Oklahoma won 34-27. (AP Photo/Jeffrey McWhorter)

Referees keep Oklahoma players from interacting with Texas players as they leave the field after pregame warmups before an NCAA college football game at the Cotton Bowl, Saturday, Oct. 12, 2019, in Dallas. Oklahoma won 34-27. (AP Photo/Jeffrey McWhorter)

Texas wide receiver Collin Johnson makes a catch as Oklahoma cornerback Jaden Davis (4) defends in the second half of an NCAA college football game at the Cotton Bowl, Saturday, Oct. 12, 2019, in Dallas. Oklahoma won 34-27. (AP Photo/Jeffrey McWhorter)