What is every Big 12 Conference team's record against the over/under line as an underdog since the 2007 season?

Definitions
Team Over Record Over % Under % Total +/-
Houston 40-25-1 61.5% 38.5% +3.3
Oklahoma 12-8-1 60.0% 40.0% +2.2
TX Christian 33-23-0 58.9% 41.1% +2.6
Texas Tech 54-45-1 54.6% 45.5% +2.6
Nebraska 42-36-1 53.9% 46.2% +3.4
Colorado 75-65-2 53.6% 46.4% +0.6
Texas A&M 40-35-0 53.3% 46.7% +2.1
Kansas 78-69-1 53.1% 46.9% +1.8
Kansas St 53-47-1 53.0% 47.0% +1.8
W Virginia 35-35-2 50.0% 50.0% +1.4
UCF 30-30-2 50.0% 50.0% +0.8
Missouri 36-46-1 43.9% 56.1% -1.7
Baylor 42-55-2 43.3% 56.7% -0.9
Iowa St 53-70-1 43.1% 56.9% -1.2
Oklahoma St 28-40-0 41.2% 58.8% -0.7
Cincinnati 28-42-0 40.0% 60.0% -2.1
BYU 29-44-0 39.7% 60.3% -2.6
Texas 23-42-1 35.4% 64.6% -3.2