The lowest reported price for E85 gas in Jefferson County was $3.69 per gallon during the week ending May 30, available at seven gas stations, according to customer reports submitted to GasBuddy.
Of the 200 reported gas stations located within Jefferson County, seven offered E85 gas.
The average reported price for a gallon of E85 gas in Colorado was $3.65, down from the previous week.
The U.S. Energy Information Administration said gasoline prices continue to react to both international oil markets and domestic fuel supply conditions. Analysts monitoring the energy market have pointed to refinery utilization rates, U.S. crude oil inventories, OPEC+ production policies and seasonal driving demand as factors influencing fuel costs in 2026, particularly during periods of refinery outages or shipping disruptions affecting global oil supplies.
Gas price data reflects cash payments. Some stations may charge higher prices for credit card transactions due to processing fees, though such surcharges are prohibited in some states and territories.
Data is accurate as of press time, but gas prices have been known to fluctuate on a daily, and even hourly, basis.
Information in this article was obtained from GasBuddy. The source data can be found here.
