The Big 12 is not expected to extend its grant of rights -- the contract that essentially keeps the conference together -- no matter the outcome of expansion talks, CBS Sports has learned.

Multiple sources through the expansion process have mentioned that, for Texas andOklahoma alone, it is difficult to find support to extend the grant of rights past its expiration in 2025.

Those two schools are thought to have the most conference options when the 13-year, $2.6 billion media rights contract with ESPN and Fox expires in eight years.

"Those grant of rights aren't going to be extended," an official at one of those schools told CBS Sports.

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