The Kwik Fill at 1120 New Castle Road is selling the cheapest regular gasoline in Prospect for the week of September 9-15, according to GasBuddy.com.
Gas was priced at $2.63 per gallon.
Data is accurate as of press time, but gas prices have been known to fluctuate on a daily, and even hourly, basis.
The lowest price of premium gas in cities throughout Butler County was found at two gas stations in the week ending Dec. 20, 2025, according to customer reports submitted to GasBuddy.
The cheapest reported price for a gallon of E85 gas in Butler County came in at $2.83 during the week ending Dec. 20, 2025.
In Butler County, the week’s lowest midgrade gas price was $3.35 per gallon as of the week ending Dec. 20, 2025.
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