The Lady Raiders cut the 12-point deficit down to 4 late in the second half, but were unable to break even or go ahead as #16 Oklahoma defeated the Lady Raiders 65-55.
The Lady Raiders took a 1-point lead (29-28) into halftime, but shot 2 of 12 from the charity stripe in the second half, digging themselves a hole they were unable to escape from.
Casey Morris and Chynna Brown each scored 11 points to lead the Lady Raiders in Norman.
The Lady Raiders fall to 12-4 overall and 2-2 in Big 12 play.
The Lady Raiders will return to action on Wednesday when they travel to Austin to take on Texas.
Tipoff is set for 7 p.m.