The national average for a gallon of regular gasoline has officially crossed the $4.00 mark for the first time since August 2022. According to the latest data from AAA, the average price reached $4.02 on Tuesday, March 31, 2026, marking a staggering increase of over a dollar in just a single month.
Current Market Snapshot
The rapid escalation is primarily attributed to the ongoing military conflict involving the U.S., Israel, and Iran, which has severely disrupted global energy supplies.
- National Average: $4.018 per gallon (Regular)
- One Month Ago: ~$2.98 per gallon
- Crude Oil Benchmark: Brent crude is trading near $115–$120 per barrel.
Regional Price Variations
While the national average sits just above $4, drivers in certain regions are seeing much higher figures due to local taxes and supply chain proximity to the conflict’s economic fallout.
| State | Average Price (Regular) |
|---|---|
| California | $5.89 |
| Washington | $5.35 |
| Hawaii | $5.45 |
| Oklahoma | $3.27 (Nation’s Lowest) |
| Kansas | $3.29 |
Key Drivers of the Surge
- Strait of Hormuz Blockade: Iran’s closure of this vital waterway has reportedly disrupted nearly 20% of the world’s oil supply, leading to what the International Energy Agency calls the “largest supply disruption in history.”
- Summer Blend Transition: The price hike coincides with the annual shift to “summer-blend” gasoline, which is more expensive to produce due to additives required to reduce evaporation in warmer weather.
- Refinery Pressure: Global energy infrastructure is under immense strain, with diesel prices also spiking to an average of $5.45 per gallon.
Expert Insight: Analysts warn that if the conflict persists and the Strait remains closed, national averages could push well beyond $4.00, potentially testing the record highs of $5.00+ seen during the 2022 energy crisis.
If you are looking for more information on current fuel trends or technical details, you can use the following official AAA resources:
AAA Gas Price Resources
- Official FAQ & Gas Facts:AAA Gas Price Facts and Resources
- Details on how prices are determined and where the data originates.
- National & State Averages:State Gas Price Averages
- A comprehensive breakdown of daily prices for every U.S. state.
- Latest Newsroom:AAA Gas Prices News
- Updated reports on the impact of the Iran conflict and other market drivers.
Key Quick Facts (As of March 31, 2026)
- Highest State Average: California ($5.89)
- Lowest State Average: Oklahoma ($3.27)
- National Record High: $5.016 (Set in June 2022; current trends are approaching this mark).
Tip: You can also use the AAA Mobile App to find the cheapest real-time gas prices at stations near your current location.
