Friday, August 21, 2026
Diesel cracks hit multi-month highs as refining crisis deepens, Iran tensions escalate
Refined product markets rallied hard this week, with ULSD futures hitting a four-month high and RBOB gasoline touching a one-month high as record crack spreads reflect a shift from a crude-supply story to an outright fuel-supply crunch. Geopolitical risk compounded the tightness: Ukrainian drones struck Russia's Perm refinery over 1,600 km from the border, Saudi tankers rerouted around Houthi threats, and US rhetoric against Iran escalated. On policy, EPA plans to extend the September 1 RFS compliance deadline for refiners, while renewable diesel/SAF activity continued with XCF Global's daily output baseline and IndyCar's move to fully renewable fuel for 2027.
Spot prices & single-product cracks vs WTI, from EIA data ↗
Markets & Prices
Global refining disruptions turn the oil shock into a fuel supply crisis
Pressure in global energy markets is shifting from crude oil toward refining capacity, with record refining margins, disrupted capacity and tighter exports creating a fuel supply crisis distinct from the crude shock.
Energy Markets Rally On Growing Fuel Shortages And Global Supply Threats
RBOB gasoline futures led a rally to a one-month high near $3.34, while ULSD futures reached a four-month high of $4.532 as global refinery production losses go unreplaced.
Crude Surges As Iran Tensions Escalate And Diesel Markets Tighten
Crude surged as Iran tensions escalated further, with record-high crack spreads drawing market attention amid tightening diesel markets.
Nymex Overview: Crude and Product Prices End the Day, Week Higher — OPIS
September RBOB climbed 8.5 cents to $3.3479/gal, up 5.1% on the week, as crude and product prices ended higher for the day and week.
Front Month Nymex ULSD Rose 4.95% This Week to Settle at $4.4948 — Data Talk
Front-month Nymex ULSD for September rose 4.95% this week to settle at $4.4948/gal, its largest two-week gain since July 2026.
Week 33 - US DOE Inventory Recap
Weekly recap of US DOE petroleum inventory data for Week 33.
Farmers Face Higher Fuel Costs as Diesel Supplies Tighten
Farmers face higher fuel costs as diesel supplies tighten; EPA's September 1 higher-Reid-vapor-pressure gasoline allowance is also noted.
Refining & Supply Ops
Ukrainian Drone Attack Hits Lukoil Refinery Deep in Russia
Ukrainian drones struck Lukoil's Perm refinery, more than 1,600 km (1,000 miles) from the Ukraine-Russia border, per Zelenskyy.
Court Upholds Trump Admin Order to Restart SYU
A US court upheld the Trump administration's order to restart the Santa Ynez Unit (SYU), which DOJ called a win for domestic energy production.
Various Tankers Shuttle Saudi Oil North to Evade Houthis
Shipowners are rerouting Saudi crude tankers north via a safer path to avoid Houthi attacks on exports through the Bab el-Mandeb chokepoint.
Oil Rises as US Targets Iran's Economy
Crude extended its rally as Asian demand strengthened and the Iran conflict continued to constrain global supplies.
Policy & Credits
U.S. EPA to Extend Renewable Fuel Standard Compliance Deadline for Refiners
EPA plans to extend the September 1 deadline for refiners to demonstrate compliance with the Renewable Fuel Standard biofuel blending law.
XCF Global ships 55,000 gallons of renewable diesel daily
XCF Global says it now ships 55,000 gallons of renewable diesel daily, establishing a baseline output as verifiable proof of commercial execution.
IndyCar switching to fully renewable fuel for 2027
Shell is shifting sourcing of waste feedstocks for IndyCar's 100% renewable fuel toward domestic supply ahead of the series' 2027 switch to fully renewable fuel.
Week Ahead
- Wed, Aug 26 — EIA Weekly Petroleum Status Report (10:30am ET) — inventories, demand, refinery runs
- Wed, Aug 26 — EIA This Week in Petroleum analysis
- Tue, Aug 25 — EPA weekly RIN transaction data update
- Mon, Aug 24 — EIA weekly retail gasoline & diesel prices (Mon PM)