He finished with a season-low three points.
Hield had scored less than 10 points just once this season.
Having dropped three of their last four, the Sooners travel to Stillwater on Saturday to play Oklahoma State (1 p.m., ESPN2).
The Cowboys, who have dropped five in a row, will be without star Marcus Smart for the second of his three-game suspension.
The Sooners, who beat OSU 88-76 at home ON Jan. 27, haven't defeated the Cowboys in Gallagher-Iba Arena since 2009.
The win gave the Red Raiders three consecutive Big 12 games for the first time since 2011.
After winning just three conference games last season and four combined the last two seasons, Texas Tech is 5-6 in the Big 12.
“It certainly validates and confirms that we're doing things well and doing things the right way,” Tech coach Tubby Smith said. “It tells me a lot about these kids' heart and their toughness.”