What is every Big 12 Conference team's record against the over/under line as an underdog since the 2006-2007 season?

Definitions
Team Over Record Over % Under % Total +/-
Iowa St 145-109-3 57.1% 42.9% +2.8
Baylor 98-75-4 56.7% 43.4% +3.1
Texas 108-93-0 53.7% 46.3% +2.7
Missouri 131-114-3 53.5% 46.5% +1.4
W Virginia 100-94-3 51.6% 48.5% +1.0
Kansas St 121-114-3 51.5% 48.5% +1.9
Houston 80-76-4 51.3% 48.7% +1.6
Nebraska 158-152-4 51.0% 49.0% +0.8
Oklahoma St 129-127-3 50.4% 49.6% -0.2
Texas A&M 107-110-2 49.3% 50.7% +0.4
UCF 115-120-4 48.9% 51.1% -0.1
BYU 64-67-0 48.9% 51.2% +1.2
Texas Tech 126-132-5 48.8% 51.2% +0.1
TX Christian 143-155-6 48.0% 52.0% +1.1
Colorado 116-137-0 45.9% 54.2% -0.5
Oklahoma 107-127-4 45.7% 54.3% -1.1
Cincinnati 77-98-3 44.0% 56.0% -2.1
Kansas 30-41-1 42.3% 57.8% -2.4