The Sooners, who clinched the Big 12 Conference South Division title, are assured of playing in the Sugar Bowl if they beat Texas Tech next week and win the Big 12 title game in Kansas City on Dec. 6.
Southern California (9-1), which thrashed Arizona, 45-0, stayed in second ahead of LSU, which thrashed Alabama, 27-3. The Trojans mauled Arizona, 45-0.
Defending national champion Ohio State was fourth, followed by Michigan, Georgia, Texas, Washington State, TCU, and Florida State.
Tennessee heads the second ten, ahead of Virginia Tech, Miami, Florida, Mississippi, Purdue, Iowa, Kansas State, Miami of Ohio, and Boise State.
Rounding out the top 25 are Minnesota and Pittsburgh tied at No. 21, Nebraska, Oklahoma State, and Bowling Green.
Northern Illinois, which began the season with a win over Maryland, and Michigan State dropped out.