What is every Big 12 Conference team's record against the over/under line as an underdog since the 2003 season?

Definitions
Team Over Record Over % Under % Total +/-
Oklahoma 17-11-1 60.7% 39.3% +2.4
Houston 50-35-1 58.8% 41.2% +3.9
TX Christian 38-29-0 56.7% 43.3% +2.8
Texas Tech 64-50-1 56.1% 43.9% +3.0
Texas A&M 54-43-0 55.7% 44.3% +2.1
Kansas St 66-54-1 55.0% 45.0% +2.0
Kansas 94-82-2 53.4% 46.6% +1.6
Nebraska 48-44-1 52.2% 47.8% +2.3
Colorado 87-82-2 51.5% 48.5% -0.4
W Virginia 42-41-3 50.6% 49.4% +1.6
Oklahoma St 44-47-1 48.4% 51.7% +1.2
Missouri 43-51-1 45.7% 54.3% -1.0
UCF 40-48-2 45.5% 54.6% -0.3
Baylor 59-71-2 45.4% 54.6% -0.1
Cincinnati 43-53-0 44.8% 55.2% -1.1
BYU 40-51-2 44.0% 56.0% -2.6
Iowa St 65-88-2 42.5% 57.5% -1.3
Texas 25-44-1 36.2% 63.8% -3.4