US Diesel Hits $5.78 a Gallon as Hormuz Disruption Strips Half of Normal Tanker Flow
Diesel prices have climbed more than 53% since the Iran war began, with combined supply disruptions now equivalent to roughly 20% of global seaborne diesel trade.
US retail diesel reached $5.78 per gallon on Thursday (2026-09-03), the highest level since 2022 and up more than 53% from where it stood when the war with Iran broke out in late February, according to NBC News. ICE Brent crude front-month was trading near $95.89 per barrel on Thursday (2026-09-03), up roughly 20% since August. The physical market is running well ahead of what futures prices alone would imply.5
The strain on diesel is a consequence of two overlapping supply shocks hitting a market with little buffer. The Strait of Hormuz, which before the conflict carried approximately 20% of the world's daily oil supply, is now moving a fraction of that. ING estimated on Thursday (2026-09-03) that tanker throughput at the strait had fallen to around 50% of pre-war levels, compressing flows from some of the world's largest crude and product exporters.5
Diesel and gasoil exports from the Middle East and Russia have crashed by more than 50% in recent weeks, dropping to approximately 1.6 million barrels per day from around 3.3 million barrels per day, according to Vortexa data. Taken together, NBC News reported that combined disruptions are equivalent to roughly 20% of global seaborne diesel trade. The arithmetic on relief is difficult: even a partial Hormuz reopening would not immediately restore export volumes that have been cut by that magnitude.4,5
Middle distillate inventories are deteriorating on both sides of the supply equation. US distillate stocks sat 12% below the five-year seasonal average, according to data cited by Oilprice.com. That deficit exists even as refineries push toward capacity limits, with many operators delaying planned maintenance to capture record refining margins. Running flat-out buys time, but it also removes the cushion that absorbs unexpected outages.4
The International Energy Agency forecast in a report released on Wednesday (2026-08-12) a supply deficit of 1.8 million barrels per day for the current quarter, more than double its prior estimate, according to Montel reporting. Markets briefly had bearish data to weigh against that figure: US crude inventories surged by 17.4 million barrels in the week of August 3 (2026-08-03), the largest single-week build since January 2023, as export flows weakened. But that crude build has not translated into distillate relief.3
ICE Brent crude front-month held near $90 in early trading on Thursday (2026-08-13) before fading, with traders then focused on stalled US-Iran negotiations. By Thursday (2026-09-03), Brent had pushed back to $95.89, reflecting both the persistence of the Hormuz impasse and the accelerating diesel squeeze. Cushing crude stocks, a barometer of US physical supply, stood at 21.6 million barrels as of mid-June (2026-06-18), close to operational stress levels that typically sit around 40 million barrels in normal conditions.3,2
The demand response from Asia has been significant but not uniformly bearish. China's crude imports fell by roughly 5 million barrels per day following the Hormuz closure, a demand shock that capped crude price spikes at the headline level. But that demand compression has not eased the diesel squeeze, because the same disruption that cut crude imports also cut Middle Eastern product exports. Japan's crude imports dropped 66% year-on-year as of late May (2026-05-29), data from Japan's Ministry of Economy, Trade and Industry showed, while Brazil's crude exports were expected to fall 50% in May compared with a year earlier.3,1
Wholesale gas prices were up 1% in early Thursday (2026-09-03) trading. ICE Endex TTF front-month fell 2.59% to €71.76 per megawatt-hour on Thursday (2026-09-03), while THE M+1 dropped 2.51% to €73.01 per megawatt-hour, a divergence from the crude and distillate direction that reflects European gas market dynamics running on a different clock from oil.5
Only two developments could bring meaningful relief to oil and gas prices, analysts wrote, as reported by NBC News on Thursday (2026-09-03), without specifying which two. The geometry of the problem is clear enough without the detail: Hormuz throughput returning to pre-war levels, or a large enough demand destruction event. Neither appears imminent.
Refineries running near capacity are one mechanical failure or one Atlantic hurricane away from losing marginal diesel production precisely when inventories have no room to absorb the loss. That is what traders and portfolio managers need to price over the next several weeks.4