Where were the cheapest places to fill up on E15 gas in cities in Butler County in week ending June 7?

Where were the cheapest places to fill up on E15 gas in cities in Butler County in week ending June 7?

There was a single gas station in cities across Butler County selling E15 gas at the lowest price of $2.77 per gallon in the week ending June 7, according to customer reports submitted to GasBuddy.com.The average reported cost of E15 gas in cities within Butler County was $2.88 per gallon.Of the 13 reported gas stations in cities within Butler County, three offer E15 gas.The average reported price of E15 gas in Iowa was $2.77, compared to $2.78 …