Diesel Tops $6 a Gallon for the First Time as 28 States Set Records

The US national average diesel price reached $6.00 a gallon for the first time on Thursday, according to live GasBuddy data. Diesel has set fresh all-time highs in 28 states.

The record arrived less than a week after diesel posted a $5.85 high. At $6.00, the fuel now costs roughly $2.30 more than it did a year ago.

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HISTORY: diesel has crossed $6/gal nationally for the first time ever, according to live GasBuddy data. every truck, every delivery, every package, every grocery run just got more expensive. the cost of moving everything in america just hit a record. Statement⬇️ (9/10/26, 3p CT) pic.twitter.com/zijqu6vD9i

— Patrick De Haan (@GasBuddyGuy) September 10, 2026

Diesel Records Topple Across 28 States

Patrick De Haan, head of petroleum analysis at GasBuddy, named the 28 states that set records. Texas, California, Florida, Washington, and North Carolina all made the list.

Meanwhile, 5 California stations have run out of room on the price board. De Haan said they are selling diesel at $9.999 a gallon, the highest figure their dispensers can display.

“Record diesel prices will impact every cargo, shipment, every delivery Americans are taking, and are likely to reignite inflation up and down the supply chain… I suggest Americans anticipate a costlier holiday season…” De Haan said.

The squeeze builds on a thin supply. The EIA put US diesel inventories at 106.3 million barrels, some 13% under the five-year average.

NEW: U.S. diesel prices have hit an ALL-TIME HIGH of $5.97/gallon.Remember: higher diesel prices mean higher delivery and heating costs. Your energy bill, your groceries, packages at your door— all of it will cost more.Donald Trump’s war with Iran did this.

— Elizabeth Warren (@SenWarren) September 10, 2026

Crude Above $100 Keeps the Pressure On

Crude is the main lever behind the move. Brent crossed $100 on September 8 and has climbed since. It surged to an intraday high near $111 today, its strongest level since late May.

At press time, Brent traded near $108.2 a barrel on Friday, up 0.61%. West Texas Intermediate added 0.53% to $103.

Both benchmarks are now on track to close the week above $100 for the first time since mid-May. They have recorded gains of over 20% in the past month.

Shipping routes explain much of the rally. Iran-aligned Houthis seized Yemen’s port of Mocha on Thursday, while tanker attacks have kept Strait of Hormuz traffic restricted.

BREAKING: Saudi Arabia says its crude oil production has fallen to its lowest level since 1990 amid the Iran War.Today, Saudi Arabia notified OPEC that its production declined by 1.9 million barrels per day, to a total of 6.2 million barrels per day.Provisional…

— The Kobeissi Letter (@KobeissiLetter) September 10, 2026

Demand forecasts are moving the other way. OPEC cut its 2026 world oil demand growth estimate to 380,000 barrels per day on Thursday, the fifth straight downward revision.

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