Global Fuel Oil Supply Crisis Triggered by Strait of Hormuz Closure - March 2026

Fuel oil serves as the primary energy source for the global maritime shipping fleet, which carries roughly 90% of internationally traded goods by volume. Beyond shipping, fuel oil is widely consumed in industrial heating, electricity generation in thermal power plants, and as feedstock in petrochemical manufacturing. The global fuel oil market was valued at approximately USD 134 billion in 2025, with Asia representing the largest demand center due to its concentration of shipping routes, refining capacity, and industrial activity.

On 28 February 2026, coordinated airstrikes by the United States and Israel against Iran under Operation Epic Fury triggered an immediate and severe disruption to global fuel oil supply chains. The operation targeted Iranian military infrastructure, nuclear facilities, and leadership positions. In retaliation, Iran launched missile and drone strikes against US military bases, Israeli territory, and energy facilities across neighboring Gulf states including Saudi Arabia, Qatar, Kuwait, and the UAE. On 02 March, a senior commander of Iran's Islamic Revolutionary Guard Corps (IRGC) declared the Strait of Hormuz closed and warned that any vessel attempting transit would be targeted.

The Strait of Hormuz is the single most critical chokepoint in global energy trade. Prior to the crisis, approximately 20 million barrels per day of crude oil and refined petroleum products transited through this narrow waterway, representing roughly 20% of the world's daily oil consumption. According to the Joint Maritime Information Center, tanker traffic through the Strait dropped by 94% between 28 February and 01 March. Within days, shipping activity fell to near zero as commercial operators suspended transits due to attack risks and the cancellation of insurance coverage for vessels entering the area.

The disruption struck the fuel oil market from multiple angles simultaneously. Gulf producers collectively exported around 3.3 million barrels per day of refined products in 2025, a significant share of which consisted of fuel oil and marine bunker grades. The port of Fujairah in the UAE, the world's second-largest marine bunker fuel hub after Singapore, experienced direct physical damage when drone debris struck oil storage infrastructure on 09 March. Terminal operators halted barge loading operations, and bunker fuel availability in the region tightened sharply. Although some operations resumed by mid-March following damage assessments, the hub faced a second major disruption on 14 March when another drone attack forced the suspension of all oil loading at the port.

Saudi Aramco shut down its 550,000 barrel-per-day Ras Tanura refinery after drone strikes, and QatarEnergy suspended LNG production at Ras Laffan and Mesaieed Industrial City following similar attacks. These shutdowns removed significant volumes of refined fuel oil, naphtha, and petrochemical feedstocks from the global market. The IEA estimated that more than 3 million barrels per day of refining capacity in the Gulf region had been shut down due to attacks or safety precautions, with over 4 million barrels per day of total refining capacity at risk.

The countries most exposed to this fuel oil shortage are concentrated in Asia and the broader Indo-Pacific region. Japan relies on the Strait of Hormuz for approximately 70% of its oil imports and has virtually no domestic fossil fuel production. South Korea, India, the Philippines, Thailand, and Malaysia depend on imports for 60% to 95% of their crude supply. Smaller Southeast Asian economies such as Vietnam, Cambodia, Laos, and Myanmar face acute vulnerability because they lack refining capacity and depend on fuel products exported from Thailand, Singapore, and China. Pakistan and Bangladesh are particularly at risk given their limited storage infrastructure and heavy reliance on Gulf-sourced LNG and petroleum products. In Europe, countries dependent on Gulf distillate imports, particularly in southern and eastern regions, face tightening diesel and heating fuel supplies.

Several nations have imposed fuel export restrictions to protect domestic supply. China ordered all state-owned energy companies to suspend fuel exports effective 11 March, covering gasoline, diesel, and jet fuel. Thailand enacted a statutory ban on exports of gasoline, diesel, jet fuel, and LPG, with limited exceptions for Cambodia and Laos. South Korea imposed caps on exports of gasoline, diesel, and heating fuel. Japan cancelled some fuel export shipments to prioritize domestic consumption. India informally directed public sector refiners to redirect fuel toward the domestic market rather than exporting. Indonesia maintained existing restrictions on biofuel feedstock exports, while Malaysia intensified anti-smuggling enforcement to prevent subsidized fuel from crossing borders.

Brent crude prices surged past USD 100 per barrel on 09 March, briefly approaching USD 120 before settling around USD 92 by mid-March. The International Energy Agency took the unprecedented step of coordinating the release of 400 million barrels from member countries' strategic petroleum reserves on 11 March. The United States separately committed to releasing 172 million barrels from its Strategic Petroleum Reserve. Despite these measures, analysts at JPMorgan Chase warned on 13 March that crude supply cuts could reach 12 million barrels per day by the following week, making the physical deficit highly visible across product markets. The research note specifically highlighted that diesel, jet fuel, LPG, and naphtha were facing acute shortages because these products were simply unavailable in sufficient quantities.

The probable cascade effects of a prolonged fuel oil shortage extend far beyond the energy sector. Maritime shipping, which carries roughly 90% of global trade by volume, faces rising bunker fuel costs and reduced availability at key refueling hubs. Shipping companies have introduced emergency fuel surcharges, and longer rerouting around the Cape of Good Hope adds transit time and further increases fuel consumption. Fertilizer production is directly threatened, as approximately one-third of global fertilizer trade transits the Strait of Hormuz. Urea prices at the New Orleans hub surged from USD 475 to USD 680 per metric ton, creating serious cost pressures ahead of the North American spring planting season. Petrochemical plants in Southeast Asia have begun declaring force majeure, including Singapore-based Aster Chemicals and Energy and Indonesia's PT Chandra Asri Pacific. A Thai petrochemicals firm, Rayong Olefins, suspended operations entirely due to inability to obtain naphtha and propane feedstocks.

Power generation in countries that rely on fuel oil for electricity is also at risk, particularly across South Asia, Southeast Asia, and parts of Africa where fuel oil and diesel remain significant sources of baseload and peaking power. Food supply chains face compounding pressures from higher transportation costs, fertilizer shortages, and petrochemical input constraints affecting packaging and cold chain logistics.

As of 15 March 2026, the Strait of Hormuz remains effectively closed to most commercial traffic. Limited exceptions have been reported. Saudi Arabia has partially rerouted crude exports via the East-West Pipeline to the Red Sea port of Yanbu, and the UAE has diverted some volumes through the Abu Dhabi Crude Oil Pipeline to Fujairah, but combined bypass capacity falls far short of the roughly 15 million barrels per day net supply loss. The crisis continues to intensify, with no ceasefire or diplomatic resolution in sight.