NEW YORK (January 16, 2013)--Forbes released a list Wednesday of the estimated annual revenues for the top conferences in college sports and the SEC, which boasts the reigning national champions in football and men's basketball, ranked fourth, but that will likely change soon, because most of the money comes from television deals, and the SEC is renegotiating its contracts after expansion.

The Big Ten is No. 1 with revenues of $310 million, $250 million of that coming from TV.

The Pacific-12 is second at $303 million and the Atlantic Coast Conference third at $293 million.

The SEC had revenues of $270 million.

The Big 12 ranks fifth.

Forbes' financial data came from the NCAA, BCS, conferences, news reports and estimates.