US diesel prices hit record high as conflicts squeeze global supply
Built WorldNational average tops $6 for the first time as Iran war and Russian export ban cut world diesel supply
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Overview
Updated 13 hours agoUS diesel hit a record $6.05 a gallon Friday, September 11, according to AAA. That's more than 60 percent above the $3.76 average on February 28, when the US and Israel attacked Iran.
Brent crude settled at $107.63 a barrel on September 10, the highest since mid-May. The Strait of Hormuz has been effectively closed since late February, and Moscow banned diesel exports in July. China also restricted fuel exports, and the combined cuts removed about 8 percent of world diesel supply, said Andy Lipow of Lipow Oil Associates.
Why it matters
Every dollar per gallon of diesel shows up as higher food and shipping costs for households.
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People Involved
Organizations Involved
Reports daily average fuel prices nationwide, the benchmark for US diesel and gasoline costs.
Aggregates fuel prices from millions of user-reported stations and publishes daily averages.
The Energy Information Administration, part of the US Department of Energy, publishes weekly petroleum inventory and price data.
One of the largest independent petroleum refiners in the United States.
US energy company operating refineries and fuel marketing across the country.
Dutch bank whose commodities strategy team tracks global oil and diesel flows.
Policy research group that quantified the economic cost of the diesel surge.
Energy consulting firm tracking distillate inventories and refining margins.
Timeline
February 2026 September 2026
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GasBuddy logs national diesel average above $6 for the first time
Latest MarketGasBuddy's tracker put the national average above $6 a gallon Thursday, a day before AAA's reading hit $6.05. The US-Israel war on Iran and Ukrainian attacks on Russian refineries have squeezed supply.
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Brent settles at $107.63; diesel crack spread hits record $112.17
MarketBrent crude settled at $107.63 a barrel, the highest since mid-May, as US-Iran fighting intensified. The US diesel crack spread, a measure of refining margins, hit a record $112.17 a barrel, per LSEG.
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Brent crude surges past $100 a barrel
MarketThe international benchmark topped $100, the highest since July, after a new round of US-Iran strikes. It traded near $72 before the war began.
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Diesel hits new record $5.90 on Labor Day
MarketAAA reports the national average at $5.90 a gallon on September 7, up from $5.85 on September 4. Gasoline also set a Labor Day record at $4.15 a gallon.
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Diesel hits record $5.85 national average
MarketAAA reports the national average at $5.85, an all-time high, up about 55 percent since the war began.
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GasBuddy logs $5.82, topping 2022 record
MarketFuel tracking service GasBuddy records $5.820 a gallon, beating its June 2022 peak of $5.819.
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EIA reports East Coast diesel inventories at record low
DataDistillate stocks fall to 19.3 million barrels for the week ending August 28, the lowest August level since EIA records began in 1982.
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EPA allows winter-blend gasoline early
PolicyThe Environmental Protection Agency said winter-blend gas could be sold starting September 1, ending summer-blend requirements early to boost supply.
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Diesel holds above $5 a gallon
MarketNational average stays above $5 as the Iran war drags on and supply disruptions mount.
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Russia bans diesel exports after refinery strikes
PolicyMoscow halted diesel sales abroad in July after Ukrainian drone strikes knocked out refineries, removing about 800,000 barrels per day from world supply. The ban runs through September 30.
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US and Israel launch war against Iran
ConflictMilitary action begins. Diesel averages $3.76 a gallon that day, and crude prices climb fast.
Scenarios
Diesel tops $6 as heating season tightens supply
Discussed by: GasBuddy analysts, TradeStation market strategists
Autumn harvest demand arrives with inventories at record lows. Heating oil, a similar distillate drawn from the same stockpiles, adds pressure as winter approaches. If the Iran war and Russian export ban persist, the national average could push past $6 a gallon.
Iran ceasefire restores Hormuz flows, diesel falls below $5
Discussed by: Commodity analysts at UBS, energy trading desks
A diplomatic settlement or de-escalation restores tanker traffic through the Strait of Hormuz. If Russia also lifts its diesel export ban, prices could fall back below $5 a gallon. This would require both conflicts to ease, which no major analyst currently expects.
Diesel stays above $5 into 2027, squeezing households and farmers
Discussed by: TradeStation strategists, UBS analysts, Reuters reporting
The status quo holds: no ceasefire, no end to the Russian export ban. Diesel remains above $5 through winter and spring, pushing food and shipping costs higher and slowing consumer spending. Some businesses have already added fuel surcharges on online orders.
Hurricane knocks Gulf refineries offline, diesel spikes above $6.50
Discussed by: Energy analysts citing refinery capacity strain
US refineries are running at 98 percent capacity, mostly in Texas where heat has already stressed operations. A major hurricane hitting the Gulf Coast could knock several plants offline for weeks, cutting supply when inventories are already at record lows.
Russia extends diesel export ban past September 30
Discussed by: Energy analysts at American Action Forum, CNBC
Moscow's ban on diesel exports runs through September 30. If Russia extends it, roughly 800,000 barrels per day stay off the market through winter. Heating oil draws from the same distillate stockpiles as diesel, so prices would likely stay above $6 into 2027.
Refinery maintenance stalls inventory rebuild, diesel holds above $6 into winter
Discussed by: Rapidan Energy Group analysts
US refineries enter seasonal maintenance in September and October, which cuts output just as harvest and heating demand build. Rapidan's Linda Giesecke expects stockpiles to stay hard to rebuild, with diesel margins elevated and volatile into early next year.
Historical Context
3 moments from history that rhyme with this story — and how they unfolded.
1973 OPEC oil embargo
Arab members of OPEC cut oil exports to the US and allies in response to US support for Israel in the Yom Kippur War. Oil prices roughly quadrupled, US gas stations ran short, and long lines formed at pumps.
The embargo ended in March 1974 after diplomatic efforts. Prices stayed high for years.
Triggered lasting policy shifts: fuel economy standards, the Strategic Petroleum Reserve, and the 55 mph speed limit.
The clearest historical example of Middle East conflict driving US fuel prices and broader inflation.
2008 oil price spike
Crude futures climbed to $147 a barrel in July 2008 as global demand outpaced supply. US gasoline topped $4 a gallon nationally for the first time. Consumers cut back on driving and discretionary spending.
Prices collapsed as the financial crisis triggered a deep recession later that year.
Demonstrated how sustained high fuel costs act as a drag on consumer spending and can help tip the economy into downturn.
Shows the path from sustained high diesel prices to a broader economic slowdown, a risk analysts now flag.
Russia's invasion of Ukraine and the June 2022 diesel record
Russia invaded Ukraine in February 2022, disrupting energy markets. Crude spiked and diesel hit $5.81 a gallon in June 2022, the record at the time. Refiners struggled to replace Russian diesel exports while Europe scrambled for alternative supplies.
Prices eased by late 2022 as recession fears cut demand and Russia kept exporting at a discount.
Set the benchmark that this event just broke, and showed how quickly war-driven supply shocks move fuel prices.
The current record breaks the 2022 peak under similar conditions: war cutting crude supply and refining capacity.
