US Diesel Breaks $6 a Gallon as EIA Warns Distillate Stocks Will Stay Below Historical Lows Through 2027
The EIA's September outlook projects US distillate inventories below 100 million barrels this month, staying under the five-year low through most of next year.
US retail diesel hit $6 a gallon for the first time on record, Rigzone reported on September 11 (2026-09-11), as the Energy Information Administration warned in its September Short-Term Energy Outlook that domestic distillate fuel oil inventories will fall below 100 million barrels this month and remain below the five-year (2021-2025) seasonal low through the end of 2026 and most of 2027.6
The inventory projection underlines that the diesel squeeze has duration, not just intensity. Crack spreads, the gross refining margin between crude input and finished diesel, had already topped $100 a barrel in the United States by August 19 (2026-08-19), setting new all-time highs, Rigzone reported. The EIA's September STEO shows the underlying inventory deficit has not yet reached its floor.1,6
Two supply shocks converged through late August. Russia imposed a ban on diesel exports and Ukrainian drone strikes intensified against Russian refinery infrastructure. Concurrent US-Iran military exchanges reignited fears across Middle Eastern supply corridors. Combined, those pressures pushed middle distillate crack spreads to record highs in the week ending August 31 (2026-08-31), oilprice.com reported.4
Goldman Sachs revised its refining profit forecast on August 31 (2026-08-31), doubling its earlier estimate of total sectoral gains from the squeeze and projecting diesel refining margins reaching $63 a barrel. The bank identified Europe as "falling further behind" on refining capacity additions. Dangote's $17 billion refinery project was cited as a future contribution to supply, not a near-term solution to the current deficit.3
ICE Brent crude front-month crossed $100 for the first time in two months on September 9 (2026-09-09) and stood at $104.32 when markets closed for the weekend on September 12 (2026-09-12). Goldman strategists, led by head of oil analysis Daan Struyven, described tanker attack intensity and geographic breadth as "a highly uncertain variable" that will remain a key driver of whether Gulf crude exports recover and at what speed. In refined products, Goldman said the pressure was "even greater" than in crude.5
ICE Brent has risen more than 20% since August 5 (2026-08-05), according to TradingKey data. NYMEX WTI crude front-month stood at $99.99 at the September 12 (2026-09-12) close. NYMEX heating oil front-month, the US diesel proxy, settled at $4.96 a gallon at that close.2
Rystad Energy's Janiv Shah, vice president of oil market analysis, said as of August 20 (2026-08-20): "With few signs of diplomatic progress in the conflict, the oil market is once again pricing in diplomatic failure." Brent's subsequent 20%-plus run suggests that market conviction has only hardened since then.2
Citi holds a different medium-term view. The bank projects ICE Brent to decline to $60 by 2027 under a base case that assumes a negotiated resolution and re-opening of affected supply routes. Under that scenario, refined product supply would recover and crack spreads would compress sharply as the geopolitical component of refining margins unwound.2
That scenario is conditional on diplomatic progress that has not materialised. The EIA's sub-100 million barrel inventory forecast provides the immediate anchor for diesel prices. Refinery investment decisions made at record crack spread levels carry real downside if a political settlement compresses margins faster than new capacity can be built and brought online.2,6
The sharpest forward variable is the pace of Russian refinery reconstruction against the ongoing tempo of Ukrainian drone operations. If Russian output stays impaired through autumn, the EIA's trajectory — inventories already projected to stay below historical seasonal lows — points to elevated diesel prices persisting well into the Northern Hemisphere's peak winter heating demand period.4,6