No store, just pumps. Must have a credit or debit card. 2 other 24 hour stations 1 (87b octane only) and 1.5 miles (regular and premium gasoline) west of these pumps.
Nice place to stop.
Gas buddy (or someone who doesn't know gas grades) has midgrade listed as available. Casey's has 2 grades of 87 octane (with and without alcohol) but nothing higher. This can mislead those who's vehicles require higher octane fuel.