Shipping Fuel Shortage Looms as Refiners Prioritize Diesel
Refiners are prioritizing diesel production over fuel oil for shipping due to Middle East supply disruptions and Russian export restrictions, creating a projected shortage of 218,000 barrels daily in the current quarter. Asia faces the most significant impact as global refinery margins surge amid the energy crisis. This marks the first substantial shipping fuel shortage since early 2025, when shortages were considerably smaller.
Why It Matters
The shipping fuel shortage reflects broader energy market stress stemming from geopolitical conflicts that have disrupted crude supplies and refinery capacity. With refiners unlikely to shift priorities given record diesel and gasoline inventory lows, the constraint on maritime fuel availability could create lasting operational and economic challenges for global shipping and logistics.
Key Facts
- Projected daily shortage: 218,000 barrels in current quarter
- Middle East refining capacity offline: 9.6 million barrels daily (approximately one-fifth of capacity)
- Previous shipping fuel shortage: 6,000 barrels daily in early 2025
- Key supply constraint drivers: Middle East hostilities and Ukrainian drone attacks reducing Russian diesel output
- Most affected region: Asia
Global shipping faces a severe fuel supply crunch as petroleum refineries worldwide shift production priorities in response to geopolitical disruptions. The compression in fuel oil availability stems from multiple supply shocks that have pushed refiners to maximize diesel output at the expense of marine fuels. Energy Aspects analysts estimate the current shortage at approximately 218,000 barrels per day, representing a dramatic escalation from the 6,000 barrel daily deficit seen earlier in 2025.
The root causes of this tightening lie in regional conflicts reshaping energy infrastructure. Hostilities in the Middle East have eliminated roughly one-fifth of the region's refining capacity—approximately 9.6 million barrels daily—directly reducing global fuel production. Simultaneously, Ukrainian attacks on Russian energy facilities have pressured diesel output there, prompting Moscow to restrict diesel exports and further intensifying international demand pressure on refined products.
Refiners face competing demands as diesel and gasoline inventories have dropped to record lows. This dynamic incentivizes petroleum processors to maximize production of these fuels through increased use of secondary processing units, which necessarily requires diverting feedstock away from fuel oil manufacturing. Analysts at Rystad Energy anticipate this production pattern will persist through at least the third quarter given the sustained Middle East supply disruption.
Asia stands to experience the most acute impact from the shortage, as the region's shipping and power sectors depend heavily on fuel oil supplies. The constraints could reverberate through global trade and energy markets if vessel operators face higher fuel costs or operational delays. Refiners currently have minimal incentive to reverse their prioritization strategy, as the economic rewards for diesel and gasoline production remain substantial given current market conditions and inventory pressures.