Here in NE Iowa you could always find a station with 87 Non-E and 89 ethanol, and if there was a third pump it'd be 91 or greater. This always surprised out-of-staters to see Premium Unleaded 10 cents cheaper than Regular. A couple years back after the mandate that required an increased ethanol mix, all the big stations changed their tank/pump setups before the deadline. Despite the fact there was the rollback, the new equipment was already in place. Stations that kept the non-E found it harder to get because out of state refineries were cutting deliveries now that there was less demand by the retailers.
I can still get non-ethanol 87 at a local store for 25% more the cost of the e-blend, but anything over that is now about impossible to find.