Saudi Arabia's East-West Pipeline, which carries crude from the country's oil fields to Red Sea export terminals, has resumed operations after drone attacks forced a shutdown. The disruption tightened diesel supply into Europe, and refining margins for diesel rose as buyers scrambled to secure barrels while the line was offline.
The restart matters because Europe still relies heavily on imported diesel, and any interruption to Middle East supply routes tends to show up quickly in refining margins rather than crude prices alone. Diesel is used disproportionately in European trucking and agriculture, so margin spikes there ripple into shipping and industrial costs faster than a comparable move in gasoline would.
What remains unresolved is whether the pipeline stays online. It has already been targeted once; a repeat attack would reopen the same supply gap and could push diesel margins back up even as the broader crude market stays calm.