The Conoco at 1825 Wine Country Road is selling the cheapest midgrade gasoline in Prosser for the week of September 30-October 6, according to GasBuddy.com.
Gas was priced at $3.09 per gallon.
Data is accurate as of press time, but gas prices have been known to fluctuate on a daily, and even hourly, basis.
In Franklin County, the week’s lowest midgrade gas price was $5.12 per gallon as of the week ending May 2.
In Benton County, the week’s lowest midgrade gas price was $5.11 per gallon as of the week ending May 2.
The week’s cheapest diesel gas price in Franklin County stood at $6.39 per gallon in the week ending May 2.
Sign-up for the Weekly Newsletter from Tri Cities Reporter.