What is driving the historic global refining-capacity squeeze that has pushed refined-product margins to record levels and decoupled fuel prices from crude oil, and how are declining seaborne product trade, diesel exports, refinery throughput and utilization, approximately 10 mil

The squeeze is principally a downstream supply shock: fuel-producing capacity and the routes that move its output have been disrupted at the same time, while seasonal consumption remains strong. That is why gasoline and diesel prices—and refining “crack” margins—can rise even when crude prices are relatively contained.

• Capacity and logistics have both failed. Around 10 million barrels per day of global refining capacity has been reported offline or impaired, largely from Middle Eastern conflict-related outages and attacks plus damage to Russian plants. The effective closure of the Strait of Hormuz has constrained both crude feedstock and refined-product exports, preventing the normal redistribution of fuel from Gulf export hubs.

• The Middle East shortfall is unusually consequential. More than 20% of the region’s 9.6 million bpd of capacity was knocked out, according to the IEA figure reported by Reuters; its regional processing rate was estimated 2.9 million bpd below pre-war levels in Q2 and still 2.2 million bpd lower in Q3.

• Russia compounds the diesel shortage. Ukrainian strikes have pushed Russian refining to roughly a two-decade low, while Russia’s diesel-export ban removes supply from one of the world’s most important diesel-exporting systems. That hits Europe, Africa and Latin America particularly hard because diesel markets have less flexibility than crude markets.

• China is not filling the gap. Reduced Chinese refinery runs and restrained product exports remove a key swing supplier just when Asian and global buyers need incremental gasoline and diesel. China has potential spare processing capacity, but policy/export limits mean physical capacity does not automatically become exportable supply.

• Trade flows are shrinking rather than rebalancing. With Gulf cargoes curtailed and Russian diesel unavailable, seaborne product trade and diesel exports fall precisely when regions with deficits need imports. The result is local shortages, wider regional price spreads and sharply higher prompt futures for gasoline and diesel.

• U.S. refiners are the main near-term beneficiaries—but cannot fully offset the loss. Record or near-record refining margins give U.S. plants a strong incentive to run at very high utilization and export more fuel; Indian export-oriented plants are similarly benefiting from high utilization. But these plants face operational limits, and replacement barrels cannot fully substitute for lost Gulf and Russian supply or repair disrupted shipping routes.

• Consumers face higher pump and delivered-fuel costs. The pass-through is clearest for gasoline, diesel and jet fuel: road users pay more at the pump, freight and farming costs rise with diesel, and airlines and industrial users face higher input costs. Strong summer driving demand, heat-related power demand and later seasonal distillate demand intensify the shortage rather than allowing inventories to rebuild.

• Inventories are the fragile buffer. Gasoline and diesel stocks are near multiyear lows in key markets, and Asian gasoline inventories are projected to remain below their five-year average through the rest of 2026. Low inventories make prices more sensitive to another refinery outage, shipping disruption, hurricane, or demand surprise.

• Why the roughly 500,000 bpd of new Indian and Middle Eastern capacity is unlikely to provide quick relief: it is small relative to the multi-million-bpd outage, may not be immediately available at full rates, and cannot by itself reopen Hormuz or restore damaged refineries. It helps at the margin, especially if configured for exportable middle distillates, but is not enough to restore the lost global buffer.

Outlook: relief depends less on crude supply than on a durable restoration of Middle Eastern shipping, repair/restart of damaged refineries, reversal of Russia’s export restrictions, and greater Chinese product exports. Until several of those occur together—and inventories rebuild—refining margins should remain elevated, fuel prices may stay decoupled from crude, and the system will remain vulnerable to further shocks.