NORMAN, Oklahoma (Ticker) -- After coming close to derailing Oklahoma's national championship season a year ago, Oklahoma State finished the job on Saturday.
Freshman Josh Fields threw a 14-yard touchdown pass to Rashaun Woods with 1:36 remaining, lifting Oklahoma State to a stunning 16-13 victory that knocked the fourth-ranked Sooners out of the national title picture.
The victory also clinched the Big 12 South Division title for Texas, which advances to play Colorado in the conference championship game on December 1. Colorado posted the first huge Big 12 upset of the weekend on Friday when it defeated Nebraska.
"I don't think we came into this game unprepared and looking ahead to next week," Sooners coach Bob Stoops said. "The team was outplayed and I was outcoached. That's really the only excuse I have for this loss."
The Cowboys nearly halted the Sooners' eventual national championship last November in Stillwater before losing, 12-7. This season, Oklahoma State (4-7, 2-6 Big 12 South) had far more to celebrate, posting its first win over a ranked team since a 42-23 decision over Mississippi State in 1998.
The Cowboys overcame four turnovers and closed their first season under coach Les Miles with back-to-back wins that followed a five-game slide.
"They are a good football team. They finally got an opportunity to show someone else," Miles said.
The Sooners (10-2, 6-2) had a 19-game home winning streak, the second-longest current run in the nation to Nebraska's 21, come to an end. Oklahoma last home loss was to Colorado in 1998, the year before coach Stoops arrived.
"This was my last game here and it just kills me," said Oklahoma receiver Josh Norman. "We didn't lose at home in three years and now to lose this one, it's just a tough way to end the regular season."
An inability to run the ball again doomed the Sooners, who entered the game ranked 79th nationally in rushing offense and had zero net yards on 27 carries.
Nate Hybl did not help matters by throwing three interceptions. He completed 22-of-48 passes for 220 yards and was sacked seven times.
Fields put the Cowboys deep in Oklahoma territory with a 15-yard pass to Woods and a 30-yard completion to Terrance Davis-Bryant. On first down, Fields then lofted a pass in the left corner of the end zone to Woods, who outleaped Derrick Strait for the ball.
"They just went up and made a great play," Stoops said. "That's why you play the game. It's a chance to let players make plays and see if you can do it. We've come up with a great number of big plays and we didn't tonight."
Last season, it was Strait who made a leaping deflection to preserve the win over the Cowboys.
Fields, who took over early in the game for Aso Pogi, was 19-of-38 for 231 yards and picked off once. Pogi was 2-of-9 for 27 yards and was intercepted twice.
Woods caught eight passes for 129 yards. He has 80 receptions this season, breaking the school record of 74 set by Hart Lee Dykes in 1988.
Oklahoma State was in position to win with the help of Luke Phillips, who kicked field goals of 26 and 52 yards in the second quarter and again from 52 yards in fourth.
Quentin Griffin, who had 15 carries for 53 yards, opened the scoring with an eight-yard TD run early in the second quarter. Griffin caught six passes for 66 yards.
Tim Duncan kicked field goals of 23 yards in the second quarter and 22 yards in the fourth.
Oklahoma's final chance ended when Hybl's desperation pass was intercepted by safety Marcus Jones.
Wins over Oklahoma are few and far between for the Cowboys. Before Saturday, Oklahoma held a 74-14-6 edge, the most lopsided in-state rivalry in all of college football.
"We've been waiting for this game since August," Oklahoma State linebacker Terrence Robinson said. "We knew we could come down here and play these guys."