NEW YORK -- Twelve is enough for the Pac-12, putting the Big 12 in position to survive yet again.
The Pac-12 presidents and chancellors voted late Tuesday night not to expand again. Commissioner Larry Scott says "after careful review we have determined that it is in the best interests of our member institutions, student-athletes and fans to remain a 12-team conference."
Texas, Oklahoma, Oklahoma State and Texas Tech were among those considering a potential move from the Big 12. After expanding from the Pac-10 with new members Utah and Colorado last year, members of the new Pac-12 won't give them the chance.
Meanwhile, across the country in New York, Big East Commissioner John Marinatto said his members "pledged to each other that they are committed to move forward together."
The Big East also has been staring at an uncertain future after Pittsburgh and Syracuse announced last weekend they are moving to the Atlantic Coast Conference.
But now it appears the Big East, like the Big 12, stands a good chance to survive the latest round of conference realignment in college athletics.
On Monday, the board of regents at Texas and Oklahoma voted to give their presidents the right to choose a new conference. Oklahoma State's regents have scheduled a special meeting Wednesday about conference realignment.
University of Oklahoma President David Boren has said the two in-state rivals will remain in the same league whether they decide to stay in the Big 12 or join the Pac-12.
"Whatever we do, we're going to do it together, and I think that's very good news for the state of Oklahoma," Boren said.
Texas Tech was going to follow Texas' lead.
Texas and Oklahoma were not acting together. Texas officials had stated several times it wanted to keep the Big 12 alive.
Oklahoma officials said they were looking for stability and equal revenue sharing, which does not occur in the Big 12. Texas has its own cable television network.
A person familiar with the schools' discussions said Texas and Oklahoma officials are expected to meet in the next few days to negotiate an agreement to keep the universities in the league for at least the next five years. The person requested anonymity because the meeting had not been announced.
Whether other schools would be invited to join that meeting was unclear Tuesday night.
Scott tried to bring Oklahoma and Texas into his conference last summer, but his bid to create a Pac-16 fell short when Texas decided to stay in the Big 12 and start its own network.
That led to Texas A&M seeking membership and being invited to join the Southeastern Conference earlier this month.
Last year, the then-Pac-10 ended up adding Colorado from the Big 12 and Utah from the Mountain West. Then the league negotiated a landmark 12-year television contract with Fox and ESPN worth about $3 billion, allowing the conference to quadruple its media rights fees and start its own network.
The university presidents decided they didn't need to share their newfound wealth with more schools.
It's hard to say for sure if this will put an end to conference realignment for a while.
ACC Commissioner John Swofford has said his league is comfortable with 14 members, which it will have when Pitt and Syracuse join, but is not "philosophically" opposed to expanding to 16.
Adding UConn and possibly Rutgers, located in New Jersey, would allow the ACC to further extend its reach into the Northeast and New York City television market.
The Big East, which lost Boston College, Miami and Virginia Tech to the ACC in the early 2000s, requires 27 months' notice if members decide to leave for another conference.
Marinatto said the Big East has no plans of letting Pittsburgh and Syracuse go earlier than the 2014-15 academic year.
The SEC quickly responded to reports that Missouri was on deck to join the conference if the Big 12 fell apart.
"The Southeastern Conference has not agreed formally or informally to accept any institution other than Texas A&M, and there have not been conference discussions regarding changes in divisional alignments," SEC associate commissioner Charles Bloom said.
AP College Football Writer Jeff Latzke in Oklahoma City and AP Sports Writers Jim Vertuno in Austin, Texas, and Antonio Gonzalez in San Francisco contributed to this report.
Follow Ralph D. Russo at http://twitter.com/ralphDrussoAP