increase font size SEC extends invitations to Oklahoma, Texas Southeastern Conference presidents vote to add the two universities to the powerhouse conference, starting in 2025. By RALPH D. RUSSOAssociated Press Read Article Southeastern Conference university presidents voted Thursday to invite Texas and Oklahoma to the league and create a 16-team powerhouse on the field and at the bank. But how soon? The latest step in a move that has potential to help reshape college sports came two days after Texas and Oklahoma requested to join the SEC in 2025. That’s when the schools’ media rights agreement with the Big 12 expires. The SEC said its leaders voted unanimously to extend invitations to the Longhorns and Sooners and bring them into the conference effective July 1, 2025.