After searching fruitlessly for a while to find an ethanol free gas station, I did it. I decided to start filling up at the chevron since it is the only top tier gas in the area.
First fill up was before I went home from college. I was fully loaded (more space than weight) and got 27.7 mpg. So after driving back down with no load at all and got 24.4 mpg, it was time for another fill up.
I went back to the same chevron. After filling up, I went in to pay and struck a conversation with the old mechanic who rang me up. We talked about gas blends and he told me that the marathon down the road was top tier as well.
Best piece of info he gave me was that they do not have ethanol in their gas!