Average Diesel Fuel Prices USA Reflect Supply Strain
- 01. Average diesel fuel prices USA: current national average and regional breakdown
- 02. Current Diesel Price Landscape: May 2026 Data
- 03. Regional Diesel Price Variations (Week Ending May 26, 2026)
- 04. State-by-State Diesel Price Rankings (2026)
- 05. Top 10 States by Lowest Diesel Prices
- 06. Year-over-Year Price Trends and Historical Context
- 07. Historical Diesel Price Milestones
- 08. Market Dynamics Driving Diesel Price Volatility
- 09. Impact on LNG and Transportation Sectors
- 10. Frequently Asked Questions
- 11. Outlook for Dieasel Markets
Average diesel fuel prices USA: current national average and regional breakdown
The current national average diesel price in the USA is $5.60 per gallon as of May 2026, up 1.80% from last month and 60.05% higher than one year ago when it stood at $3.50 per gallon. This represents an uneven recovery across regions, with West Coast prices reaching $7.18 per gallon while Gulf Coast states average just $5.05 per gallon.
Current Diesel Price Landscape: May 2026 Data
U.S. diesel inventories sit below seasonal norms but have not crossed crisis thresholds, yet prices have moved sharply higher as fuel surcharge increases lag rapid diesel price increases. The benchmark price used for most fuel surcharges rose for 12 consecutive weeks, reaching $5.643 per gallon by early April 2026.
Regional Diesel Price Variations (Week Ending May 26, 2026)
| Region | Average Price per Gallon | Week-over-Week Change |
|---|---|---|
| National Average | $5.523 | -$0.073 |
| West Coast | $6.500 | -$0.024 |
| California | $7.182 | -$0.040 |
| New England | $5.799 | -$0.009 |
| Central Atlantic | $5.810 | -$0.009 |
| Mid West | $5.623 | -$0.126 |
| Rockies | $5.493 | -$0.056 |
| East Coast | $5.394 | -$0.026 |
| Lower Atlantic | $5.201 | -$0.030 |
| Gulf Coast | $5.045 | -$0.077 |
These regional price disparities reflect differences in refining capacity, transportation costs, and state-level taxation policies.
State-by-State Diesel Price Rankings (2026)
The states with the lowest diesel fuel prices are Texas ($4.69), Louisiana ($4.84), Oklahoma ($4.85), Mississippi ($4.86), Arkansas ($4.90), Kansas ($4.94), New Mexico ($4.95), Georgia ($4.97), Missouri ($4.99), and Alabama ($5.00). Conversely, West Coast states consistently rank highest due to stringent environmental regulations and limited refining capacity.
Top 10 States by Lowest Diesel Prices
- Texas: $4.69 per gallon
- Louisiana: $4.84 per gallon
- Oklahoma: $4.85 per gallon
- Mississippi: $4.86 per gallon
- Arkansas: $4.90 per gallon
- Kansas: $4.94 per gallon
- New Mexico: $4.95 per gallon
- Georgia: $4.97 per gallon
- Missouri: $4.99 per gallon
- Alabama: $5.00 per gallon
Gulf Coast states benefit from refining hub proximity, with major refineries in Texas and Louisiana driving down regional costs.
Year-over-Year Price Trends and Historical Context
The April 2026 national average of $5.50 per gallon was up from $4.92 in March and significantly higher than the April 2025 price of $3.57 per gallon. Fuel has historically never been this high except for May and June of 2022, when prices peaked at $5.81 per gallon on June 20.
Historical Diesel Price Milestones
- February 1999: Record low of $0.95 per gallon
- March 2025: Monthly low of $3.59 per gallon
- June 20, 2022: Record high of $5.81 per gallon
- July 2, 2022: Near-peak of $5.675 per gallon
- April 1, 2026: $4.0568 per gallon (pre-surge baseline)
- May 2026: Current average of $5.60 per gallon
The 12-week surge beginning in late February added $2.184 per gallon, driven by anticipation of Iran conflict before hostilities began.
Market Dynamics Driving Diesel Price Volatility
Global diesel markets are tightening as Hormuz disruption lingers, with U.S. distillate exports recently hitting multi-year highs including increasing shipments to Europe. Exports of U.S. non-jet distillates reached 1.406 million barrels per day the week ending March 27, the highest level since January.
ULSD futures trading reflected market tension, with ultra-low sulfur diesel trading at approximately $4.4141 around 10 a.m. EDT on a key Tuesday, reflecting an increase of 8.57 cents or 1.98% from Monday's closing price. Physical market data globally for crude and products scheduled for short-term delivery signal stronger indications for rising prices.
Impact on LNG and Transportation Sectors
For the LNG transportation industry, elevated diesel prices create significant operational cost pressure as carriers feel friction when fuel surcharge increases lag rapid diesel price increases. This dynamic particularly affects liquefied natural gas logistics where trucking remains critical for last-mile delivery from regasification terminals.
Europe faces sharper availability risk as exports influence North American supply, creating cross-Atlantic market interdependence that impacts domestic pricing strategies. The LNG ecosystem increasingly monitors diesel markets as a leading indicator for broader distillate supply tightness.
Frequently Asked Questions
Outlook for Dieasel Markets
Unless there is a dramatic shift in oil markets, the streak of price increases is anticipated to extend to at least 13 weeks with virtually no indications of a downturn in the futures market for ultra-low sulfur diesel. The global distillate supply picture remains tight as Europe continues importing U.S. exports amid Hormuz disruption concerns.
For executives and procurement teams in the LNG sector, monitoring weekly EIA diesel data becomes critical for fuel cost forecasting and contract negotiations in an environment where physical market data signals continued price strength.
What are the most common questions about Average Diesel Fuel Prices Usa Show Uneven Recovery?
What is the current average diesel price in the USA?
The current national average diesel price is $5.60 per gallon as of May 2026, according to Energy Information Administration data.
How have diesel prices changed compared to last year?
Diesel prices are up 60.05% from one year ago, rising from $3.50 per gallon in May 2025 to $5.60 per gallon in May 2026.
Which states have the cheapest diesel fuel?
Texas has the lowest diesel price at $4.69 per gallon, followed by Louisiana ($4.84), Oklahoma ($4.85), and Mississippi ($4.86).
Which states have the most expensive diesel fuel?
California has the highest diesel price at $7.18 per gallon, significantly above the national average of $5.52.
Why are diesel prices so high in 2026?
Diesel prices rose due to below-seasonal inventories, 12 consecutive weeks of increases driven by Iran conflict concerns, record U.S. distillate exports to Europe, and global crude market tightening.
When were diesel prices last this high?
Diesel prices were last this high in May and June 2022, when they peaked at $5.81 per gallon on June 20.
How do regional diesel prices differ across the USA?
West Coast prices average $6.50 per gallon while Gulf Coast prices average $5.05 per gallon, a $1.45 per gallon difference driven by refining capacity and transportation costs.
What impact do diesel prices have on freight costs?
Carriers experience friction when fuel surcharge increases lag rapid diesel price increases, squeezing margins in the freight market.
