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US diesel prices hit record high as conflicts squeeze global supply

US diesel prices hit record high as conflicts squeeze global supply

Built World

National average reaches $5.85 as Iran war and Russian export ban cut world diesel supply

3 days ago: Diesel hits record $5.85 national average

Overview

Updated 1 hour ago

US diesel prices hit a record $5.85 a gallon on September 4, topping the previous peak of $5.81 set in June 2022. The national average has climbed about 55 percent since the US and Israel launched their war against Iran on February 28, when diesel cost $3.76.

Two conflicts are cutting global supply. Iranian attacks on tankers slow traffic through the Strait of Hormuz, and Ukrainian drone strikes on Russian refineries pushed Moscow to ban diesel exports through September 30. Together the disruptions have removed about 8 percent of world diesel supply, according to analyst Andy Lipow.

Why it matters

Every dollar per gallon of diesel shows up as higher food and shipping costs for households.

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Key Indicators

$5.85
US national average diesel price per gallon
Record high reported by AAA on September 4, 2026.
55%
Price increase since war began
Diesel was $3.76 a gallon before the US and Israel launched war against Iran on February 28.
19.3M barrels
East Coast distillate inventories
Record low for late August, the lowest since EIA records began in 1982.
8%
Global diesel supply disrupted
Roughly 2 million barrels per day affected by the Russian export ban and Strait of Hormuz delays.
$108
Diesel crack spread per barrel
Record intraday high on September 3, showing how tight refining margins have become.

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People Involved

Organizations Involved

Timeline

February 2026 September 2026

6 events Latest: 3 days ago
Tap a bar to jump to that date
  1. Diesel hits record $5.85 national average

    Latest Market

    AAA reports the national average at $5.85, an all-time high, up about 55 percent since the war began.

  2. GasBuddy logs $5.82, topping 2022 record

    Market

    Fuel tracking service GasBuddy records $5.820 a gallon, beating its June 2022 peak of $5.819.

  3. East Coast diesel inventories hit record low

    Data

    Distillate stocks fall to 19.3 million barrels, the lowest August level since EIA records began in 1982.

  4. Russia bans diesel exports through September 30

    Policy

    Ukrainian drone strikes on Russian refineries push Moscow to halt diesel sales abroad, removing about 800,000 barrels per day.

  5. Diesel holds above $5 a gallon

    Market

    National average stays above $5 as the Iran war drags on and supply disruptions mount.

  6. US and Israel launch war against Iran

    Conflict

    Military action begins. Diesel averages $3.76 a gallon that day, and crude prices climb fast.

Historical Context

3 moments from history that rhyme with this story — and how they unfolded.

October 1973 – March 1974

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.

Then

The embargo ended in March 1974 after diplomatic efforts. Prices stayed high for years.

Now

Triggered lasting policy shifts: fuel economy standards, the Strategic Petroleum Reserve, and the 55 mph speed limit.

Why this matters now

The clearest historical example of Middle East conflict driving US fuel prices and broader inflation.

2008

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.

Then

Prices collapsed as the financial crisis triggered a deep recession later that year.

Now

Demonstrated how sustained high fuel costs act as a drag on consumer spending and can help tip the economy into downturn.

Why this matters now

Shows the path from sustained high diesel prices to a broader economic slowdown, a risk analysts now flag.

February-June 2022

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.

Then

Prices eased by late 2022 as recession fears cut demand and Russia kept exporting at a discount.

Now

Set the benchmark that this event just broke, and showed how quickly war-driven supply shocks move fuel prices.

Why this matters now

The current record breaks the 2022 peak under similar conditions: war cutting crude supply and refining capacity.

Sources

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