We had problems because of a shortage of jet fuel in three Italian airports -- Venice, Brindisi and Catania. It was all resolved within a day and in some cases within hours, without having to cancel flights.
Fatih Birol, head of the International Energy Agency, stated that Europe has maybe six weeks or so of jet fuel left, warning of possible flight cancellations soon if oil supplies remain halted by the war.
ACI Europe has warned that if maritime flows through the Strait of Hormuz fail to recover significantly and stably within three weeks, a systemic jet fuel shortage could emerge across the European Union.