Energy & Infrastructure / Briefing
Why Diesel Costs So Much Right Now: Record Prices Meet Tight Supply
U.S. retail diesel hit $6.29 per gallon in mid-September, a nominal record. EIA blames tight global distillate supply and elevated crude prices — and expects little relief soon.
AI-assisted drafting; editorial approval does not constitute independent fact-checking.
What the EIA reported
U.S. retail diesel averaged $6.29 per gallon in the week of September 14, the highest on record in nominal terms since the EIA series began in 1994 and, adjusted for inflation, the highest since 2022. The agency attributes the level to tight global distillate supplies combined with elevated crude oil prices. [EIA-DIESEL]
Distillate inventories were 15.8 million barrels, or 13%, below the 2021-2025 seasonal average in the week ending September 11. U.S. refineries ran at 97% utilization that week, and January-August distillate production of 5.1 million barrels per day was the highest since 2019 — yet net exports have stayed near or above the five-year high since February, draining domestic stocks. [EIA-DIESEL]
Accessible data / text alternative
| Item | Value | Note |
|---|---|---|
| Retail diesel | $6.29 /gal | Week of September 14, 2026; nominal record since 1994 |
| Distillate output | 5.1 M b/d | Jan-Aug 2026 average; highest since 2019 |
| Refinery use | 97% | Utilization, week ending September 11 |
| Inventories | -13% | vs 2021-2025 seasonal average, September 11 |
Why the price is built this way
Diesel — sold commercially as distillate fuel oil — is priced from crude cost, refining margins measured by crack spreads, distribution, retail margins and taxes. Reduced refining activity in Russia, China and the Middle East cut global distillate output, raising import costs and pulling more U.S. supply into export markets. Because diesel powers freight and has seasonal uses in agriculture and Northeast heating, the increase feeds into broad goods prices. [EIA-DIESEL]
Read the estimate in context
These are mid-September figures; retail prices move weekly and may have changed since publication. The September Short-Term Energy Outlook assumes global distillate production stays below last year — an assumption, not an observation — so the projection of sustained high prices is a scenario to track, not a fact. Watch whether inventories rebuild and whether refinery utilization can hold near maximum.
Sources and editorial notes
- EIA Today in Energy — What goes into diesel prices?
Article text fetched and read on November 4, 2026; published September 18, 2026. EIA is a U.S. government statistical agency. Figures are EIA estimates and survey series, current only to mid-September 2026.
Educational context, not personalized investment advice. Source dates and stated limitations matter. No affiliate links.