Big Ten presidents have reportedly authorized commissioner Tony Petitti to “explore expansion” as the Pac-12’s future remains in question.

That comes via ESPN’s Pete Thamel, who notes that Oregon and Washington are the league’s primary targets for expansion at this stage. Stanford and Cal were previously mentioned as possibilities as well for the Big Ten.

Thamel’s report says Oregon and Washington would not be immediately offered a full share of the Big Ten’s TV revenue. However, a fractional share could still be larger than what the Ducks or Huskies would make in the Pac-12 going forward.

The Pac-12’s next media rights deal still isn’t finalized. Earlier this week, Pac-12 commissioner George Kliavkoff presented details of a potential streaming deal with Apple to league executives.

Arizona, Arizona State and Utah have been linked to a potential move to the Big 12 in recent days. If that happens, it would further erode the Pac-12’s ability to make a deal and could open the door for Oregon and Washington to head to the Big Ten.

Arizona’s Board of Regents is set to meet on Thursday evening.