Texas and Oklahoma are officially leaving the Big 12 for the SEC.

Both universities formally accepted invitations to join the Southeastern conference at Board of Regents meetings on Friday morning.

Oklahoma president Joseph Harroz gave a lengthy speech about why the Sooners are making this move. He said it was clear the Big 12 had become “last in line” when it came to the other Power 5 conferences.

Oklahoma athletic director Joe Castiglione shared a similar sentiment:

As of now, Texas and Oklahoma say they plan to honor the Grant of Rights agreement with the Big 12 and remain in that conference through 2025. However, a settlement is widely expected to be reached before that date.

This move has caused all sorts of drama within the Big 12, including conference commissioner Bob Bowlsby launching some serious allegations at ESPN — its largest media partner.

According to multiple reports, the AAC is expected to be the most aggressive conference in pursuit of the remaining eight teams in the Big 12. The Big Ten, Pac-12 and ACC have not shown any serious interest to this point, but that could change.