In the week ending Oct. 3, one gas station in Tama County sold diesel gas at the lowest reported price of $6.14 per gallon, according to customer reports submitted to GasBuddy.
The average reported price of diesel gas across the county was $6.21 per gallon.
Of the 17 reported gas stations located within Tama County, five offered diesel gas.
Across Iowa, the average reported price for a gallon of diesel gas fell to $6.06, compared to the week before.
U.S. gasoline prices are influenced by crude oil costs, refinery disruptions and seasonal demand, according to the U.S. Energy Information Administration. In its October 2026 analysis, the agency reported that crude oil and petroleum product prices increased during the third quarter amid continued conflict in the Middle East and disruptions to shipping through the Strait of Hormuz. U.S. gasoline inventories were 7% below their five-year seasonal average for the week ending Sept. 25, reflecting tighter fuel supplies.
Crude oil and fuel prices rose during the third quarter of 2026 amid disruptions to Middle Eastern supplies, according to the U.S. Energy Information Administration. U.S. refineries operated at an average 95% of capacity, yet the average gasoline crack spread, a measure of refining margins, more than doubled from a year earlier as global fuel supplies tightened. U.S. gasoline inventories were 7% below their 2021-25 average in late September, 2026.
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.