European refiners are searching for alternative crude supplies after an attack on Saudi Arabia’s East-West Pipeline disrupted shipments from one of the world’s biggest oil exporters.

The disruption has already forced Saudi Aramco to cancel some European cargoes scheduled for September, creating uncertainty over the availability of Saudi crude in the coming weeks.

The pipeline links Saudi Arabia’s eastern oil-producing region with the Red Sea port of Yanbu. At about 1,200 kilometres long, it provides a crucial alternative export route when shipments through the Strait of Hormuz face restrictions.

Saudi authorities closed the pipeline after drone attacks damaged infrastructure around Riyadh and Medina. Emergency teams were sent to assess the damage and secure the facility.

The disruption is particularly significant for European buyers because Yanbu provides access to shipping routes towards the Mediterranean.

Poland’s Orlen is among the companies responding to the uncertainty. The firm has sought additional crude from the United States, Algeria, Norway and other suppliers while saying its refineries remain operational.

Other European refiners may follow a similar strategy if Saudi shipments remain restricted.

The shift could have consequences beyond Europe. More European demand for alternative crude would increase competition among buyers and potentially lift prices for replacement barrels.

International crude prices have already moved higher. Brent rose above $109 per barrel on Tuesday, while WTI also recorded a strong increase.

The market is also dealing with supply disruptions elsewhere. Libya has faced production stoppages, while attacks on energy infrastructure have continued in other conflict zones.

Saudi Arabia has some stored crude available at Yanbu, allowing exports to continue for a limited period. But that buffer will become less useful if the pipeline remains closed for weeks.

No firm reopening date has been announced.

The next stage of the crisis will therefore depend on repairs, available inventories and the kingdom’s ability to redirect crude through alternative channels.

European refiners have been given another reminder of the risks created when a major source of crude becomes dependent on a limited number of export routes.