US diesel prices hit an all-time weekly record of $5.967 per gallon on September 7, 2026, surpassing the previous high set in 2022. The surge, driven by a global distillate supply crisis tied to the war with Iran, has pushed the EIA’s full-year 2026 price forecast to $5.07 per gallon, far above the $3.50 analysts projected just nine months earlier.
Diesel Oil in America 2026 – Introduction
Diesel oil for 2026 tell a story of forecasts gone badly wrong. As recently as December 2025, the Energy Information Administration projected US diesel prices would actually fall in 2026, averaging around $3.50 a gallon for the year. Instead, diesel has done the opposite, climbing steadily through the spring and summer before shattering the all-time weekly price record in September, hitting $5.967 per gallon nationally, driven by a severe global distillate supply crisis tied directly to the ongoing war with Iran and the resulting disruption to Middle Eastern, Russian, and Chinese fuel exports.
This report breaks down diesel oil statistics in the US in 2026 across every dimension: current national and regional prices, the root causes behind this year’s extraordinary price surge, US distillate inventory and reserve levels, the historic drawdown of the Strategic Petroleum Reserve, record-setting US crude oil production even amid the crisis, and how global OPEC supply dynamics have shaped the broader picture. Understanding these numbers matters for anyone in trucking, agriculture, logistics, or any industry where diesel costs flow directly into the price of nearly everything transported across the country.
Interesting Facts About Diesel Oil in the US 2026
| Statistic | 2026 Data |
|---|---|
| National Diesel Price (Week of Sept 28, 2026) | $4.465/gallon |
| All-Time Weekly Record (September 7, 2026) | $5.967/gallon |
| Previous Record (June 2022) | $5.810/gallon |
| Year-to-Date 2026 Average (Through Sept 7) | ~$4.895/gallon |
| EIA Full-Year 2026 Forecast (September Revision) | $5.07/gallon, up from $4.85 prior forecast |
| Original December 2025 Forecast for 2026 | $3.50/gallon |
| US Crude Oil Production, 2026 (Record) | 13.8 million barrels per day |
| Strategic Petroleum Reserve Level (Sept 25, 2026) | 283.8 million barrels, lowest since 1983 |
| SPR Barrels Released to Address Crisis (March 2026) | 172 million barrels |
| Highest Regional Diesel Price (California, Sept 2026) | $6.189/gallon |
| US Distillate Inventories vs. 5-Year Average | 13% below average |
Data Source: US Energy Information Administration, Department of Energy
The numbers above capture an energy market caught in a genuine supply shock. The gap between what forecasters expected diesel to cost in 2026, roughly $3.50 a gallon, and the EIA’s latest September forecast of $5.07 a gallon, represents a 45% upward revision within a single year, an extraordinary miss even by the standards of a historically volatile commodity market. That gap exists almost entirely because of a single event: escalating conflict involving Iran disrupted global distillate fuel supply chains across the Middle East, Russia, and China simultaneously, pulling barrels out of the global market faster than remaining producers, including record US output, could replace them.
The response has been dramatic at every level of America’s energy infrastructure. The Strategic Petroleum Reserve fell to its lowest level since 1983, at just 283.8 million barrels, after the Trump administration authorized releasing 172 million barrels in March 2026 specifically to blunt the crisis’s impact on American consumers and businesses. Even as US crude oil production set a fresh all-time record of 13.8 million barrels per day, that increased output has not been enough to fully offset the loss of distillate supply from multiple major foreign producers simultaneously, leaving diesel prices elevated well above what any pre-crisis forecast anticipated.
Current US Diesel Prices 2026 | A Record-Breaking Surge
US National Diesel Price Trajectory, 2026
Early 2026 |███████████████████████████ ~$4.00-4.40/gallon
Sept 7, 2026 |████████████████████████████████████████ $5.967 (all-time weekly record)
Sept 28, 202 |██████████████████████████████████ $4.465 (pulled back, still elevated)
| Date | National Diesel Price |
|---|---|
| September 7, 2026 (Record High) | $5.967/gallon |
| September 14, 2026 | $4.319/gallon |
| September 21, 2026 | $4.478/gallon |
| September 28, 2026 | $4.465/gallon |
| Previous Record (June 2022) | $5.810/gallon |
| 2024 Annual Average | $3.76/gallon |
| 2025 Annual Average | $3.66/gallon |
Data Source: US Energy Information Administration, Gasoline and Diesel Fuel Update
US diesel prices broke a four-year-old record this month, with the national on-highway average spiking 36.8 cents in a single week to reach $5.967 per gallon on September 7, 2026, surpassing the previous nominal high of $5.810 set back in June 2022 at the height of the post-pandemic inflation surge. Using the EIA’s weekly price observations through that date, diesel’s year-to-date 2026 average worked out to approximately $4.895 per gallon, already running far above both the $3.76 average recorded in 2024 and the $3.66 average from 2025.
Prices have pulled back somewhat since that early-September peak, settling around $4.465 per gallon by the week of September 28, though that figure still sits $1.347 higher than the same week one year earlier, a 43% year-over-year increase. This volatility illustrates how quickly the diesel market has shifted in 2026: a fuel that spent most of 2024 and 2025 trading in a relatively narrow, historically moderate band suddenly became one of the most consequential inflation stories of the year, with ripple effects extending into trucking costs, grocery prices, and nearly every sector of the economy that depends on diesel-powered freight transportation.
Why Diesel Prices Surged in 2026 | The Global Fuel Crisis
Sources of Lost Global Distillate Supply, 2026
Middle East (Iran War Disruption) |████████████████████████████████████████ Primary driver
Russia |████████████████████████████ Significant contributor
China |████████████████████ Contributing factor
| Factor | Detail |
|---|---|
| Primary Cause | War with Iran disrupting Middle East distillate exports |
| Additional Lost Supply Sources | Russia, China |
| US Distillate Inventory Forecast | Falls below 100 million barrels in September 2026 |
| US Diesel Crack Spread (Aug-Nov 2026) | Expected to exceed $2.00/gallon |
| US Response | Increased distillate exports to tight global market |
Data Source: EIA September 2026 Short-Term Energy Outlook
The root cause of 2026’s diesel price surge traces directly to the loss of large amounts of distillate supply from the Middle East, Russia, and China simultaneously, according to the EIA’s own September Short-Term Energy Outlook. This convergence of disruptions proved far more severe than markets anticipated when forecasters set their original, much lower 2026 price projections back in late 2025, before the full scope of the Iran conflict’s impact on regional refining and export infrastructure became apparent.
With global distillate production running below the prior year’s levels for months on end, US refiners and exporters have responded by directing an increasing share of domestic production toward international markets, with net US distillate exports running above or near five-year highs in every month since February 2026. That export pull, while profitable for American fuel producers, has simultaneously tightened domestic diesel supply, pushing US distillate inventories toward a forecast drop below 100 million barrels in September, a level expected to remain below the five-year average through the end of 2026 and most of 2027. The resulting diesel crack spread, the profit margin refiners earn converting crude oil into diesel, is expected to exceed $2.00 per gallon from August through November, reflecting just how profitable, and how tight, the current diesel market has become.
Diesel Prices by Region (PADD) 2026
Diesel Prices by US Region, Week of September 28, 2026
West Coast (PADD5) |████████████████████████████████████████ $5.724
California (Specifically) |██████████████████████████████████████████ $6.189
Rocky Mountain (PADD4) |████████████████████████████████ $4.486
Midwest (PADD2) |███████████████████████████████ $4.291
East Coast (PADD1) |███████████████████████████████ $4.290
Gulf Coast (PADD3) |████████████████████████████ $3.924
| Region | Diesel Price (Sept 28, 2026) |
|---|---|
| California | $6.189/gallon (highest) |
| West Coast (PADD5) | $5.724/gallon |
| Rocky Mountain (PADD4) | $4.486/gallon |
| Midwest (PADD2) | $4.291/gallon |
| East Coast (PADD1) | $4.290/gallon |
| Gulf Coast (PADD3) | $3.924/gallon (lowest) |
Data Source: US Energy Information Administration, Gasoline and Diesel Fuel Update
Regional diesel prices vary enormously across the country, with the gap between the most and least expensive regions exceeding $2.25 per gallon as of late September 2026. California stands alone at the top, with diesel averaging $6.189 per gallon, driven by the state’s unique fuel blend requirements, higher state taxes, and limited in-state refining capacity relative to demand. The broader West Coast (PADD5) region, at $5.724, reflects similar structural factors affecting neighboring states even outside California specifically.
At the opposite end, the Gulf Coast (PADD3), home to the heaviest concentration of US refining capacity along the Texas and Louisiana coastline, posted the lowest regional price at $3.924 per gallon, nearly 36% cheaper than California despite both regions facing the same underlying national supply crisis. This persistent regional gap reflects the Gulf Coast’s proximity to refining infrastructure and more favorable logistics for distributing finished diesel, advantages that have remained consistent even as the overall national price level has shifted dramatically higher throughout 2026.
US Distillate Inventories and Reserves 2026
US Commercial Diesel/Distillate Inventory vs 5-Year Average
Current 2026 Level |██████████████████████ 13% Below 5-Year Average
5-Year Average Baseline |████████████████████████████ Baseline (100%)
| Metric | Value |
|---|---|
| Distillate Inventories vs. 5-Year Average | 13% below average |
| Forecast Low Point | Below 100 million barrels in September 2026 |
| Weekly Distillate Production | ~5.2-5.3 million barrels per day |
| Refinery Crude Throughput | ~17.1-17.3 million barrels per day |
| Refinery Capacity Utilization | ~96-97% |
Data Source: EIA Weekly Petroleum Status Report, September 2026
US distillate inventories, the commercial stockpiles of diesel and related fuels held by refiners and distributors, have run persistently below historical norms throughout 2026, sitting roughly 13% below the five-year average according to EIA weekly data. Refiners have pushed output and utilization to near-maximum levels in response, processing crude oil at 96% to 97% capacity utilization, among the highest sustained rates in recent years, while distillate-specific production has held in the 5.2 to 5.3 million barrels per day range.
Despite this near-maximum refining effort, inventories have continued trending downward because demand, both domestic consumption and the elevated export flows discussed earlier in this report, has simply outpaced the rate at which US refiners can rebuild stockpiles. The EIA’s own forecast that distillate inventories will fall below 100 million barrels in September and remain depressed through the end of 2026 and most of 2027 signals that this tight supply-demand balance is not expected to resolve quickly, meaning elevated diesel prices could persist well beyond the immediate crisis period that triggered this year’s initial price spike.
The Strategic Petroleum Reserve Drawdown 2026
US Strategic Petroleum Reserve Level, 2026
February 2026 |█████████████████████████ 415 million barrels
August 2026 |█████████████████ 289.7 million barrels (lowest since Nov. 1982)
September 2026 |███████████████ 283.8 million barrels
| Metric | Value |
|---|---|
| SPR Level, February 2026 | 415 million barrels |
| SPR Level, August 21, 2026 | 289.7 million barrels (lowest since Nov. 1982) |
| SPR Level, September 25, 2026 | 283.8 million barrels |
| Barrels Released (March 2026 Authorization) | 172 million barrels over ~120 days |
| IEA Coordinated Release (March 11, 2026) | 400 million barrels (largest in IEA history) |
| SPR Authorized Capacity | 714 million barrels |
| Current SPR as % of Authorized Capacity | 39.7% |
Data Source: US Department of Energy, International Energy Agency
The Strategic Petroleum Reserve has absorbed the brunt of the US government’s direct response to this year’s diesel crisis, falling from roughly 415 million barrels in February 2026 to just 283.8 million barrels by late September, a drawdown of more than 130 million barrels in under eight months. That September level represents just 39.7% of the reserve’s 714-million-barrel authorized capacity and marks the lowest SPR level since 1983, a reduction the Department of Energy attributes directly to emergency releases aimed at minimizing the fuel crisis’s impact on American consumers and businesses.
The centerpiece of this response came on March 11, 2026, when President Trump authorized releasing 172 million barrels from the US reserve over approximately 120 days, timed to coincide with a coordinated 400-million-barrel release announced the same day by the International Energy Agency across its member nations, the largest emergency oil stock release in the IEA’s history. With maximum nominal drawdown capability limited to 4.4 million barrels per day and released oil taking roughly 13 days to reach the market following a presidential decision, the SPR’s physical release capacity itself became a genuine constraint on how quickly the US government could respond to the unfolding crisis, even with the political will to authorize large-scale releases already in place.
US Crude Oil Production 2026 | A Record Year Despite the Crisis
US Crude Oil Production, Annual Record Progression
2025 (Prior Record) |███████████████████████████████████████ 13.7 million b/d
2026 (New Record) |████████████████████████████████████████ 13.8 million b/d
| Metric | Value |
|---|---|
| 2026 US Crude Production Forecast | 13.8 million barrels/day (record) |
| 2025 Prior Record | 13.7 million barrels/day |
| Permian Basin Production, 2026 | 6.8 million barrels/day, +3% vs. 2025 |
| Federal Gulf of America Growth, 1H2026 | +10% vs. 1H2025 |
| Crude Oil Production Shut-Ins (August 2026) | 6.7 million barrels/day (crisis-related) |
Data Source: EIA September 2026 Short-Term Energy Outlook
Remarkably, even amid the global supply crisis driving diesel prices to record highs, the United States is on track to set a fresh crude oil production record in 2026, with the EIA forecasting output averaging 13.8 million barrels per day for the year, surpassing 2025’s own record of 13.7 million barrels per day. Most of this growth concentrates in two specific regions: the Permian Basin in Texas and New Mexico, forecast to average 6.8 million barrels per day, a 3% increase over 2025, and the Federal Gulf of America, where production rose 10% in the first half of 2026 compared to the same period the year before, driven by several major new offshore projects coming online, including the Shenandoah Floating Production Unit and the Ballymore subsea tieback.
This US production record stands in sharp contrast to the supply losses driving the broader crisis, underscoring just how severely the Iran conflict has disrupted Middle Eastern output specifically rather than reflecting a global production shortfall. The EIA separately noted that global crude oil production shut-ins averaged 6.7 million barrels per day in August 2026, up from 5.0 million barrels per day in July, figures that illustrate the scale of production actively being withheld from the global market due to the conflict, a volume so large that even record-setting American output has not been sufficient to fully offset it.
Global Oil Supply and OPEC Production 2026
OPEC Crude Oil Production: 2025 vs 2026
2025 Annual Average |█████████████████████████ 27.99 million b/d
2026 Forecast |█████████████████████ 25.64 million b/d (-8.4%)
2027 Forecast |██████████████████████████ 28.47 million b/d (rebound)
| Metric | Value |
|---|---|
| OPEC Production, 2025 Average | 27.99 million barrels/day |
| OPEC Production, 2026 Forecast | 25.64 million barrels/day |
| OPEC Surplus Production Capacity, 2025 | 4.21 million barrels/day |
| OPEC Surplus Production Capacity, 2026 | 1.20 million barrels/day |
| Strait of Hormuz Production Shut-In | 7.5-9.1 million barrels/day (peak, March-April 2026) |
| OPEC Production, 2027 Forecast (Rebound) | 28.47 million barrels/day |
Data Source: OPEC Annual Statistical Bulletin 2026
The global supply picture behind America’s diesel crisis becomes even clearer when examining OPEC’s own production data. The group’s crude oil output fell from a 27.99 million barrel per day average in 2025 to a forecast 25.64 million barrels per day in 2026, a decline driven almost entirely by the Strait of Hormuz conflict, which at its peak in March and April 2026 shut in an estimated 7.5 to 9.1 million barrels per day of Middle Eastern production, a disruption of a scale rarely seen in modern oil market history.
Perhaps the most telling figure in the entire global supply picture is OPEC’s surplus production capacity, the spare capacity the group could theoretically bring online to offset a supply shock, which collapsed from 4.21 million barrels per day in 2025 to just 1.20 million barrels per day in 2026, leaving almost no buffer to absorb any further disruption. Forecasters do expect a meaningful rebound by 2027, with OPEC production projected to climb back to 28.47 million barrels per day, suggesting markets anticipate the underlying conflict reaching some resolution, though until that rebound materializes, the thin global spare capacity cushion means diesel and broader fuel markets remain genuinely vulnerable to any additional supply shock.
Diesel Price Forecasts vs. Reality in 2026
EIA Diesel Price Forecast Evolution for 2026
December 2025 Forecast |███████████████ $3.50/gallon
August 2026 Forecast |████████████████████████████ $4.85/gallon
September 2026 Forecast |██████████████████████████████ $5.07/gallon
| Forecast Date | 2026 Annual Average Forecast |
|---|---|
| December 2025 | $3.50/gallon |
| August 2026 | $4.85/gallon |
| September 2026 (Latest) | $5.07/gallon |
| Total Upward Revision | +45% from original forecast |
Data Source: EIA Short-Term Energy Outlook, Multiple Monthly Releases
The gap between analysts’ original 2026 diesel price expectations and what actually materialized stands as one of the year’s most significant energy forecasting misses. Back in December 2025, the EIA projected diesel would average just $3.50 per gallon for 2026, with quarterly forecasts ranging from a $3.59 Q1 high down to a $3.41 Q2 low, a trajectory that assumed continued gradual softening from already-moderate 2025 price levels and anticipated a global oil surplus of roughly 2 million barrels per day that analysts expected would keep prices contained.
That forecast proved dramatically wrong once the Iran conflict escalated and its full impact on global distillate supply became apparent. By August 2026, the EIA had already revised its full-year forecast upward to $4.85 per gallon, and by September, following the record-setting weekly price spike, that figure climbed further to $5.07, a 45% increase from the original December projection. This repeated upward revision pattern illustrates how quickly energy forecasts can become obsolete when a genuine geopolitical supply shock unfolds, and underscores why businesses and consumers relying on diesel-intensive operations have had to adjust their own cost planning assumptions multiple times within a single calendar year.
What Elevated Diesel Prices Mean for Consumers and Freight 2026
Diesel Price Components, May 2026
Crude Oil |████████████████████████████████████████ 42%
Refining |████████████████████████ 25%
Distribution/Marketing |██████████████████████ 23%
Taxes |███████████ 11%
| Cost Component | Share of Retail Diesel Price |
|---|---|
| Crude Oil | 42% |
| Refining | 25% |
| Distribution and Marketing | 23% |
| Taxes | 11% |
Data Source: US Energy Information Administration
Understanding what drives the retail diesel price helps explain why this year’s crisis has hit consumers and businesses so directly. According to EIA’s cost breakdown, crude oil costs account for 42% of the retail diesel price, by far the largest single component, meaning the global supply disruptions documented throughout this report translate almost directly into pump prices with relatively little buffer from other cost components. Refining costs add another 25%, a share that has grown given the elevated crack spreads discussed earlier, while distribution and marketing contribute 23%, and taxes make up the remaining 11%.
Because diesel powers the overwhelming majority of America’s freight transportation, from long-haul trucking to rail and agricultural equipment, elevated prices at this scale ripple through the broader economy well beyond what consumers see directly at truck stops and fueling stations. Freight carriers typically pass rising fuel costs through to shippers via fuel surcharges, meaning the diesel price surge documented throughout 2026 has likely contributed meaningfully to broader goods-transportation costs across the supply chain, compounding the energy-driven inflation pressures already reshaping gasoline, grocery, and broader consumer price trends this year.
Diesel Oil Statistics 2026 – Frequently Asked Questions
What is the current price of diesel in the US? As of the week of September 28, 2026, the national average diesel price stood at $4.465 per gallon, down from an all-time record of $5.967 set earlier that month.
When did diesel hit its all-time high price? Diesel reached a record $5.967 per gallon nationally on September 7, 2026, surpassing the previous high of $5.810 set in June 2022.
Why did diesel prices surge in 2026? The surge stems primarily from the war with Iran, which disrupted distillate fuel supply from the Middle East, Russia, and China simultaneously, creating a severe global shortage.
What did analysts originally predict for 2026 diesel prices? In December 2025, the EIA forecast diesel would average just $3.50 per gallon for 2026, a projection later revised up to $5.07 by September.
Which US region has the most expensive diesel? California has the highest diesel prices in the country, averaging $6.189 per gallon as of late September 2026.
How much oil has the Strategic Petroleum Reserve released in 2026? The US released 172 million barrels from the SPR starting in March 2026, part of a coordinated 400-million-barrel release among IEA member nations.
Is US oil production still growing despite the crisis? Yes. US crude oil production is forecast to reach a record 13.8 million barrels per day in 2026, even as the global crisis unfolds.
How much has OPEC’s spare production capacity fallen? OPEC’s surplus production capacity collapsed from 4.21 million barrels per day in 2025 to just 1.20 million barrels per day in 2026.
How low did the Strategic Petroleum Reserve fall in 2026? The SPR fell to 283.8 million barrels by late September 2026, its lowest level since 1983.
What percentage of the diesel price comes from crude oil costs? Crude oil costs account for 42% of the retail diesel price, the largest single component, according to EIA data.
Disclaimer: This research report is compiled from publicly available US Energy Information Administration, Department of Energy, and OPEC sources. While reasonable efforts have been made to ensure accuracy, no representation or warranty is given as to the completeness or reliability of the information presented, particularly given the fast-moving nature of the ongoing global energy supply situation. We accept no liability for any errors, omissions, losses, or damages of any kind arising from the use of this report.

