Kevin McCullar scored 15 of his 21 points in the second half as No. 3 Kansas surged past No. 9 Oklahoma 78-66 Saturday, extending its winning streak over the Sooners to six games. Hunter Dickinson led Kansas (14-2, 2-1 Big 12) with 24 points and 14 rebounds. Dajuan Harris had eight assists and no turnovers.