Oklahoma officially joined the SEC on July 1, 2024.

Key date

  • The SEC and member schools agreed that Oklahoma (and Texas) would become full conference members effective July 1, 2024.
  • That date marks when Oklahoma’s athletic programs formally left the Big 12 and began competing under the SEC banner.

How the move unfolded

  • Oklahoma and Texas first accepted future SEC invitations in summer 2021, with an original target entry date of July 1, 2025.
  • After further negotiations, the conferences moved the timeline up one year, finalizing 2024 as the effective entry date.

Quick forum-style scoop

  • Fans often phrase it as: “Oklahoma became an SEC school on July 1, 2024,” since that is when the league and school held their official welcome events and press conferences.
  • From the 2024–25 athletic year onward, Oklahoma is treated as a full SEC member in schedules, media deals, and championship eligibility.

TL;DR: Oklahoma joined the SEC on July 1, 2024.

Information gathered from public forums or data available on the internet and portrayed here.