Europe’s diesel lifeline comes with a winter risk

Diesel was selling wholesale in New York for $200 a barrel while Brent crude, the international oil benchmark, ended the week at $102. That gap captures Europe’s problem: getting more oil onto the market does not necessarily deliver the fuel its buyers need. According to an analysis by The National — Business, a new emergency stock release may bring relief while leaving Europe more exposed if the US-Iran war continues into winter.

The Group of Seven major economies agreed on Friday to supply 100 million barrels over four months after US President Donald Trump threatened to ban American diesel exports, the outlet reported. The release will combine crude oil and refined products — fuels made by processing crude — with diesel supplied first. In exchange, the countries agreed not to restrict oil exports for now. Europe faces a difficult trade-off: protect access to American fuel today, or preserve emergency supplies against another disruption.

The shortage is in finished fuel

The Gulf shipping operation protected by US naval and air forces appears to have brought crude flows close to prewar levels, according to the analysis. But that recovery has involved deaths and injuries among mariners, vessel damage and substantial costs. Protecting refined-fuel shipments is harder because they use smaller ships, carry a wider range of products and generally transport more flammable cargoes. Arab Gulf countries exported about 5.5 million barrels a day of refined products before the war. Those flows dropped below 2 million and have recovered to roughly 3 million.

Iran previously added another 900,000 barrels a day in net exports of refined products and natural gas liquids, fuels separated during gas processing. Its seaborne exports have fallen to almost nothing, with perhaps small volumes moving overland. If diesel accounts for half the G7 release, the additional supply would average about 400,000 barrels a day over four months. The National estimates that would replace only around a third of the diesel exports lost this year.

The National’s assessment: an emergency release can ease the shortage, but cannot fully replace lost supplies or resolve it permanently.

Europe and Japan hold substantial reserves of finished fuels. The US strategic petroleum reserve, its emergency oil stockpile, consists almost entirely of crude. The US has marketed about 130 million barrels, leaving its crude reserves at their lowest since the early 1980s, the outlet said. It questioned how much more could be withdrawn without permanently damaging the underground salt caverns used for storage.

A pledge is not the same as a sale

A US diesel export ban would leave Europe particularly vulnerable. The UK and EU import about 270,000 barrels a day from the US, roughly a third of their diesel imports. That rose to 420,000 during the summer’s worst squeeze. But a ban could also hurt US refiners by forcing production cuts, while exposing American petrol imports to possible retaliation, the analysis said.

Europe has a cushion: its emergency stocks have been rebuilt since 2022 and remain above legal minimums. Yet companies, rather than governments, hold those supplies under mandatory stockholding rules. Permission to release them does not guarantee sales. Commercial fuel stocks at the Amsterdam-Rotterdam-Antwerp trading hub actually rose last month, contrasting with steep US declines.

The next test is how much fuel companies actually sell, not simply how much governments approve. The National argues that this distinction could delay the impact of Europe’s commitment until after the US elections. Beyond that, the course of the conflict — and further threats to Gulf refineries — will determine whether the release buys useful time or leaves Europe with less protection in midwinter.