Key Points
Diesel hit record $6.06 per gallon on September 11 as Middle East conflict escalates.
Saudi Arabia shut its East-West pipeline after drone attack, cutting 4-5 million barrels daily from global supply.
Diesel prices up 55% since February war start, outpacing gasoline's 40% rise.
Trucking companies passing fuel surcharges to retailers, pushing up grocery and delivery costs.
Diesel fuel in the United States hit an all-time high of $6.06 per gallon on Friday, September 11, surpassing the previous record of $5.82 set in June 2022. The spike stems from a six-month war between the US and Iran that has damaged Saudi oil infrastructure, closed key shipping routes, and reduced global refining capacity. Diesel powers nearly all freight trucks, trains, and farm equipment, meaning the surge will likely push up prices for groceries, delivered goods, and everyday consumer items across the economy.
Why Middle East conflict is crushing diesel supply
Oil futures surged above $100 per barrel as fighting between the US and Iran intensified. On September 11, Iran-backed Houthis seized Perim Island at the mouth of the Red Sea, controlling the Bab el-Mandeb strait through which 12% of global trade passes. The same day, Saudi Arabia shut down its East-West pipeline after a drone attack originating from Iraq damaged pumping stations. The 1,200-km pipeline normally moves 4 to 5 million barrels per day, or 4% to 5% of global supply. Refineries in the Middle East and Russia have been damaged by war, while Russia has restricted diesel exports to fight fuel shortages at home and China has limited its own exports.
Diesel costs are outpacing all other fuels
Diesel prices have risen more than 55% since the start of the US-Iran war in late February, when the national average was $3.76 per gallon. Gasoline rose only 40% in the same period. Diesel is on track for the biggest annual percentage increase on record, according to AAA data. The price jumped 21 cents in just one week. California has been hit hardest, with diesel averaging $7 per gallon. Andy Lipow, president of Lipow Oil Associates, stated that refiners have already maximized diesel production and cannot extract more from the system.
Consumers will feel the impact at the grocery store and checkout
Nearly all heavy trucks and freight trains run on diesel, transporting virtually all goods Americans buy. Major trucking companies and freight railroads pass increased fuel costs to retailers and manufacturers through fuel surcharges, which then raise prices for consumers. Perishable foods like meat and produce face the most immediate strain because they require frequent hauling and restocking. Some businesses have already added fuel surcharges to online orders and package delivery. Cost-of-living data shows inflation rose 3.4% over the past 12 months, with energy prices accounting for more than one-third of that increase in August alone.
No relief expected in the near term
Brent crude, the global oil benchmark, settled at $104.61 per barrel on September 11 after briefly spiking above $108. President Donald Trump said oil prices will likely not fall until after November’s midterm elections. KCM Trade chief market analyst Tim Waterer warned that diesel and refined fuels could face stronger upward pressure than crude if Gulf shipping constraints and Russian refinery outages persist. The dual attacks on Saudi infrastructure on September 11 represent a dangerous escalation while diplomatic efforts to end the war have stalled.
Final Thoughts
Diesel at $6.06 per gallon signals sustained pressure on transportation and food costs. With Middle East conflict showing no signs of resolution and refinery capacity constrained, consumers should expect higher grocery and delivery prices to persist through the fall.
FAQs
The US-Iran war damaged Saudi oil pipelines and closed Red Sea shipping routes, cutting global refining capacity and pushing crude above $100 per barrel.
Diesel is up 63% from September 2025, when it averaged $3.71 per gallon. It has risen 55% since the war began in late February 2026.
Groceries, especially meat and produce, will see the biggest price increases because they require frequent trucking and restocking using diesel-powered vehicles.
President Trump said prices likely won’t fall until after November’s midterm elections. Analysts warn upward pressure will persist if shipping and refinery constraints continue.
Disclaimer:
The content shared by Meyka AI PTY LTD is solely for research and informational purposes. Meyka is not a financial advisory service, and the information provided should not be considered investment or trading advice.
About Author

Huzaifa Zahoor
Co FounderHuzaifa Zahoor is the engineer who built Meyka. He has spent years writing Python, training AI models, and building data pipelines specifically for financial markets. His technical articles have reached over 30,000 readers on Medium, so he knows how to make complex things easy to follow. If this article touches on how the tools work, he is the person who actually built them.
What brings you to Meyka?
Pick what interests you most and we will get you started.
I'm here to read news
Find more articles like this one
I'm here to research stocks
Ask Meyka Analyst about any stock
I'm here to track my Portfolio
Get daily updates and alerts (coming March 2026)