If it is E-10, they are required to put it on the pumps.
Not all has ethanol in it, it depends on the distributer.
Gas is refined from one of 3 refineries in Lake Charles, but the seller(Shell, BP, Exxon...ect) adds their own additives(V-power, Techron... ect).
I am not sure if the refinery adds MTBE or Ethanol to everything, hopefully it depends on the service station/distributer, but they have to have one or the other to burn cleaner.
I saw in the news that Citgo is adding E-10 to all gas they are selling.
http://www.fuel-testers.com/ethanol_...boat_fuel.html