What is every Big 12 Conference team's record against the over/under line as an underdog since the 2011 season?

Definitions
Team Over Record Over % Under % Total +/-
Oklahoma 11-6-1 64.7% 35.3% +4.6
Houston 31-19-1 62.0% 38.0% +3.2
TX Christian 30-21-0 58.8% 41.2% +3.2
Texas Tech 50-36-1 58.1% 41.9% +3.7
Kansas 65-60-1 52.0% 48.0% +1.3
UCF 21-20-1 51.2% 48.8% +3.0
Kansas St 39-38-1 50.7% 49.4% +1.1
Texas A&M 24-24-0 50.0% 50.0% +1.8
W Virginia 31-33-2 48.4% 51.6% +1.4
BYU 27-32-0 45.8% 54.2% -0.9
Missouri 32-38-1 45.7% 54.3% -1.7
Iowa St 39-51-1 43.3% 56.7% -1.0
Baylor 28-37-1 43.1% 56.9% +0.1
Oklahoma St 21-30-0 41.2% 58.8% -0.5
Cincinnati 22-33-0 40.0% 60.0% -3.0
Texas 20-38-1 34.5% 65.5% -3.6