Oklahoma is clearly going to be ahead of Texas in the BCS. They are ahead in the coaches and will be ahead in the computer. So, unless a magic fairy sprinkles dust on their computers between now and 4:30 PM EST, Texas will be screwed in a way.
However, one advantage Texas may have: They won't have to play the extra game. OU very well could lose, and then Texas will move into the top 2 against the SEC champ. Then again, Texas already destroyed Missouri and OU probably will too.