Nolan Schubart's RBI single in the ninth inning lifted Oklahoma State to a series-clinching 4-3 victory over Texas Sunday at O'Brate Stadium.

The 13th-ranked Cowboys scored twice in the ninth after trailing throughout the game to advance to 22-7 overall and 6-3 in Big 12 play. The 15th-ranked Longhorns moved to 21-8 and 4-2 in the league.

Isaac Stebens earned the win on the mound to move to 4-0 as he pitched out of a huge jam in the eighth after UT loaded the bases with no outs. The right-hander picked up a strikeout for the first out before getting an inning-ending double play to keep the Horns off the scoreboard.

Stebens came on in relief of Drew Blake, who was also fantastic out of the bullpen. The southpaw replaced starter Brian Hendry in the fifth and worked four shutout innings, striking out a career-high five and allowing just one hit, a ninth-inning single.

Offensively for OSU, Roc Riggio posted a strong effort, going 3-for-4 with a double, while seven other Pokes had hits in the contest.

Garret Guillemette started the action early for the Longhorns, cranking a three-run home run to left field in the first inning to give the visitors the lead.

But Hendry settled in and did not allow any more runs while striking out seven in his four innings of work.

With OSU still trailing 3-0 in the sixth, Chase Adkison put the Cowboys on the board with a two-run homer off the left-field foul pole. It was Adkison's third round-tripper of the season.

After Stebens worked out of the jam in the top of the ninth, the Cowboys came up clutch in the bottom of the inning.

Marcus Brown opened the inning with a line out against UT closer Zane Morehouse before pinch hitter Brennan Holt delivered a single up the middle. Up next, Riggio drew a walk in an eight-pitch at-bat before David Mendham also drew a free pass to load the bases with one out.

With Schubart at the plate, Morehouse uncorked a wild pitch to bring Holt home with the tying run, and the Cowboy freshman worked the count to 2-2 before smacking a pitch down the first-base line for a game-winning single.

OSU will complete its homestand Tuesday when the Cowboys host Wichita State at 6 p.m. before they return to Big 12 action Thursday at TCU.