Ethanol-Free Gas in Ottumwa, IA

4 verified ethanol-free gas stations

Ottumwa has 4 verified ethanol-free gas stations, all Casey's locations. All 4 carry 87-octane E0. For 90-octane or higher E0, the closest option is Maverik in Grinnell, Iowa, about 50 miles away. Every listing is independently verified; the most recent check in Ottumwa was May 5, 2026.

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Ethanol-Free Gas in Ottumwa

Casey's

1001 E Main St, Ottumwa, IA

6416820930

oct

Casey's

1603 W 2nd St, Ottumwa, IA

6412550240

oct

Casey's

346 Richmond Ave, Ottumwa, IA

6412550232

oct

Casey's

504 W Mary St, Ottumwa, IA

6412550236

oct

All Iowa Stations

Nearby Cities with Ethanol-Free Gas

Straight-line distance from Ottumwa.

Oskaloosa, IA

5 stations · 22 mi away

Pella, IA

3 stations · 38 mi away

Knoxville, IA

4 stations · 41 mi away

Chariton, IA

3 stations · 46 mi away

Williamsburg, IA

3 stations · 51 mi away

Ethanol-Free Gas in Ottumwa: FAQ

Is there ethanol-free gas in Ottumwa, IA?

Yes. Ottumwa has 4 gas stations verified to sell ethanol-free (E0) gasoline: Casey's (4 locations).

Does Ottumwa have 90-octane or higher ethanol-free gas?

Not currently. Stations in Ottumwa top out at 87-octane E0. The nearest station with 90-octane or higher is Maverik in Grinnell, Iowa, about 50 miles away.

Which brands sell ethanol-free gas in Ottumwa?

Casey's (4 locations). All locations are independently verified through chain-website confirmation or direct source data; the most recent verification in Ottumwa was May 5, 2026.