INDIANA — Average gasoline prices in Indiana have surged 10.5 cents per gallon over the past week, reaching an average of $3.58 per gallon today, according to GasBuddy’s survey of 3,271 stations across the state.

Pump prices in the Hoosier State now stand 20.7 cents per gallon higher than one month ago and 39.1 cents higher than this time last year. Across Indiana, fuel prices varied widely yesterday, ranging from a low of $2.86 per gallon to a high of $4.24 per gallon—a spread of $1.38 per gallon.
National Trends & Regional Comparison
The state’s price hike mirrors a nationwide trend. The U.S. average price of gasoline climbed 7.7 cents per gallon over the past week to $4.02 per gallon, based on data compiled from over 11 million weekly reports covering more than 150,000 stations nationwide. The national average is 3.6 cents higher than last month and 93.1 cents higher than a year ago.
Diesel fuel has experienced even steeper increases, with the national average rising 14.3 cents over the last week to reach $5.418 per gallon.
Gasoline prices in neighboring metro areas currently average:
- Indianapolis: $3.61/g (up 14.3 cents from last week’s $3.47/g)
- Cincinnati, OH: $4.11/g (up 35.7 cents from last week’s $3.75/g)
- Champaign, IL: $4.17/g (down 3.0 cents from last week’s $4.20/g)
Historical Context
Indiana and national gas prices on August 17 over the past five years:
- 2025: $3.19/g (U.S. Average: $3.09/g)
- 2024: $3.33/g (U.S. Average: $3.39/g)
- 2023: $3.90/g (U.S. Average: $3.85/g)
- 2022: $3.94/g (U.S. Average: $3.91/g)
- 2021: $3.11/g (U.S. Average: $3.17/g)
Expert Analysis
GasBuddy analysts attribute the widespread increases to international supply disruptions affecting global energy markets.

“Average gasoline prices climbed back above $4 per gallon over the last week, with prices rising in slightly more states than they fell, as rebounding oil prices driven by the continued closure of the Strait of Hormuz and ongoing Ukrainian attacks on Russian oil refineries kept upward pressure on the market,” said Patrick De Haan, head of petroleum analysis at GasBuddy.
“Diesel felt the pressure even more acutely, rising in all but a few states, as Ukraine’s attacks on Russian refining infrastructure continue to impact refined product prices more than crude oil itself,” De Haan added. “While the seasonal transition to cheaper winter-blend gasoline in the coming month could bring some relief, the two dominant challenges facing motorists—the closed Strait and the ongoing refinery strikes—show no signs of resolving anytime soon. Until they do, the path for gas and diesel prices remains tilted to the upside.”


