In early June 2010, there were reports that the Pac-10 was considering adding up to six teams to the conference: the University of Texas,
Texas A&M University,
Texas Tech University, the
University of Oklahoma,
Oklahoma State University, and the University of Colorado.
[107]
On June 10, 2010, the University of Colorado Boulder accepted an invitation to join the Pac-10 Conference, effective starting with the 2012–2013 academic year.
[108][109] The school later announced it would join the conference a year earlier than previously announced, in the 2011–2012 academic year.
On June 15, 2010, a deal was reached between
Texas and the
Big 12 Conference to keep Texas, Texas A&M, Texas Tech, Oklahoma, and Oklahoma State in the Big 12. Following Texas' decision, the other Big 12 schools that had been rumored candidates to join the Pac-10 announced they would remain in the Big 12. This deal effectively ended the Pac-10's ambition to potentially become a sixteen-team conference.
[110]
On June 17, 2010, the
University of Utah accepted an invitation to join the Pac-10 Conference, effective starting July 2011.
[108] Utah was a member of the Western Athletic Conference (WAC) with Arizona and Arizona State before those two left for the Pac-10 in 1978. The Utes left an expanded WAC with seven other schools in 1999 to form the new
Mountain West Conference. Utah became the first "
BCS Buster" to join a BCS conference, having played in (and won) two BCS games beforehand.