The win against the Kansas Jayhawks Saturday allowed the Sooners to remain in the top 10 of this week's poll.
Army is ranked for the first time since 1996, moving into The Associated Press college football poll at No. 23 as it begins preparations to face rival Navy on Dec. 8.
The Black Knights (9-2) have been edging toward the Top 25 in recent weeks, and they finally broke through on Sunday. The rankings were mostly unchanged after a weekend with few big games or surprising results.
Led by unanimous No. 1 Alabama, the top six stayed the same as last week. Clemson was No. 2, followed by Notre Dame, Michigan, Georgia and Oklahoma.
Washington State moved up a spot to No. 7 and UCF jumped three spots to No. 8, season highs for both schools. LSU tied Central Florida at No. 8 and Ohio State was 10th.
Also debuting in the Top 25 this season is Pittsburgh at No. 24.