UT teammate Robert Killebrew forced the fumble that Jackson returned for a touchdown, and the Texas team's offense pitched in with 91 rushing yards from game MVP Xavier Omon of Northwest Missouri State.
Big 12 players accounted for 21 of Texas' first 27 points, with Texas Tech's Danny Amendola catching a 28-yard touchdown pass, Jackson returning the fumble and Oklahoma's Garrett Hartley kicking two field goals and three extra points.
The national team's points came on a 97-yard kickoff return by North Carolina State's Darrell Blackman and a 62-yard punt return by Mount Union's Pierre Garcon.
The national team won the inaugural game 24-20 last year.
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