OU has won the last 5 in a row and 8 of the last 10 over OSU.
OU has won 4 in a row and 5 of the last 6 against Texas, with the only loss during that period in overtime on UT's home floor.
That's pretty darned close to total domination in my book in the last few years.
EDIT: Dahl said it so much better than me!