Regular Gasoline Average Climbs to $3.937
WASHINGTON, D.C. --- For the ninth straight week, the U.S. average retail price for regular gasoline climbed to another all-time high, according to the Energy Department.
WASHINGTON, D.C. --- For the ninth straight week, the U.S. average retail price for regular gasoline climbed to another all-time high, according to the Energy Department.
The department's Energy Information Administration's weekly report released May 29 revealed that the price shot up by 14.6 cents to $3.937 per gallon. During the past two weeks alone, prices have climbed by 21.5 cents.
Prices rose in all regions, with the East Coast price jumping by 14.2 cents to match the U.S. average at $3.937 per gallon. The average price in the Midwest went up 15.2 cents to $3.951 per gallon. The average price in the Gulf Coast jumped 14 cents to $3.829 per gallon, the lowest of any region.
The price in the Rocky Mountain region went up the most, surging 16.5 cents to hit $3.851 per gallon. Once again, the average price for the West Coast was the highest in the nation, shooting up by 14.6 cents to break through the $4 mark at $4.029 per gallon. The average price in California also shot past $4, hitting $4.099 per gallon, a jump of 14.7 cents.
During the previous week, the national average diesel price continued its upward momentum, surging up by 22.6 cents to $4.723 per gallon. Diesel prices rose in all regions by more than 20 cents. During the past three weeks, the national average price for diesel shot up by 57.4 cents. The average diesel price on the East Coast increased by 23.5 cents to reach $4.779 per gallon.
In the Central Atlantic portion of the East Coast, the diesel price went up by 23.1 cents to $4.913 per gallon, $2.031 above a year ago. In the Midwest, the diesel price went up the least of any region, but still jumped by 20.4 cents to hit $4.667 per gallon.
The average diesel price in the Gulf Coast was $4.673 per gallon, an increase of 23 cents. In the Rocky Mountain region, the average price grew by 21.1 cents to $4.653 per gallon. On the West Coast, the average diesel price soared 27.3 cents, the most of any region, to hit $4.883 per gallon. The average price in California shot past $5 for the first time by gaining 29 cents to land at $5.027 per gallon.
More Fuel

Study: How 2026's Gas Price Hikes Affect Different Vehicle Types
New data from iSeeCars reveals how rising fuel costs have affected different vehicle segments as gasoline prices climbed nearly 46% over the past four months.
Read More →Are You Tracking Your Fleet's True Total Cost of Ownership?
Bobit Business Media surveyed 190 fleet professionals and found that while most fleets are tracking costs, fragmented systems and data gaps are keeping true TCO visibility out of reach. With rising pressure to control spend in an increasingly volatile environment, the gap between what fleets think they know and what the data actually shows is wider than you might expect. See how your peers are managing costs today and where the industry still has room to improve.
Read More →
May Fuel Update: All Regions Experience Declines
Gas prices are finally easing in much of the country, but experts warn global tensions could quickly reverse the trend as the national average remains well above last month’s levels.
Read More →
April Fuel Update: Prices Climb Above $4 as Spring Surge Accelerates
National average jumps to $4.04 per gallon, up sharply from last year, with West Coast prices topping $5 and further increases expected amid rising oil tensions.
Read More →
Tips from Fleet Managers on Saving Fuel Costs
Fleet leaders share practical strategies to reduce fuel spend through smarter policy, routing, and driver guidance.
Read More →
March Fuel Update: Prices Settle With a $4 Average
Fuel prices significantly slowed this week, but a $4 national average is still expected.
Read More →Bob Adamsky on Fuel Volatility: “Don’t Panic — Have a Plan”
With oil prices rising again, AWP Safety’s fleet manager shares how to respond to rising fuel costs and how the right strategy can turn fuel spikes into cost-saving opportunities.
Read More →
Oil Market Turbulence Is Complicating Fleet Cost Planning
Rapid swings in crude oil prices driven by the conflict in the Middle East could create longer-term cost pressures for fleets, affecting fuel prices, supply chains, and vehicle strategy, says NTEA’s Andrew Wrobel.
Read More →
February Fuel Update: Prices Inch Higher for Third Week in a Row
The final February fuel update reveals prices continuing to inch higher for the third week in a row.
Read More →
The 2026 Fuel Economy Guide: Updated Cost and Efficiency Benchmarks for Fleets
Fleet managers can use the DOE’s 2026 Fuel Economy Guide to benchmark MPG across powertrain types using side-by-side vehicle ratings and compare new model-year options.
Read More →