Hey, Charlie, are you sure those are regular prices you posted? Reason I ask is that regular isn't usually the cheapest gas in Iowa. Something to do with ethanol subsidies. Midgrade (Plus or Super, 89 octane) is usually cheapest, followed by regular (87 octane, which usually doesn't contain ethanol), then premium (91 octane). There are a few stations around here that don't sell regular at all (Murphy USA typically sells midgrade, premium and "super premium" and Costco, despite what the sign in front of the store says, only sells midgrade and premium).