I'd think the two in Hereford Texas would be doing it... up to a certain percentage.

( http://www.gpreinc.com/locations/hereford )

( http://www.white-energy.com/ )

Granted the farther west you go.. the better the protein probably was in the wheat.. you might find a market where High Pro comes east and back haul Low pro out west..  ???

There were reports of 12+ protein out of SW Kansas this summer..   but lord knows to my East they got a beau coup amount of 8 and 9 pro..
So yes.. there may be some hurdles to jump over..