What is every Big 12 Conference team's record against the over/under line as a road underdog since the 2004 season?

Definitions
Team Over Record Over % Under % Total +/-
Oklahoma 9-5-1 64.3% 35.7% +4.4
Kansas St 38-25-1 60.3% 39.7% +3.3
Nebraska 28-22-0 56.0% 44.0% +4.5
Houston 26-21-0 55.3% 44.7% +0.8
TX Christian 22-18-0 55.0% 45.0% +1.8
Kansas 47-42-1 52.8% 47.2% +2.6
Baylor 32-29-2 52.5% 47.5% +3.0
Texas A&M 25-24-0 51.0% 49.0% -1.1
Colorado 44-46-0 48.9% 51.1% -1.1
BYU 24-26-2 48.0% 52.0% -0.9
W Virginia 20-22-1 47.6% 52.4% -0.5
Texas Tech 26-30-0 46.4% 53.6% -0.5
Cincinnati 25-30-0 45.5% 54.6% +0.3
UCF 23-28-2 45.1% 54.9% +0.8
Missouri 21-26-1 44.7% 55.3% -0.1
Iowa St 33-43-0 43.4% 56.6% -1.2
Oklahoma St 20-27-0 42.6% 57.5% +0.1
Texas 7-19-0 26.9% 73.1% -10.4