The risk of shortages is greatest in Asia, and to a lesser extent Europe, as they both rely on oil from the Gulf and its refineries for their supplies, said an economist. PARIS: Could planes soon be stuck on the ground due to a lack of fuel? The risk of jet fuel shortages is growing each day the Strait of Hormuz remains closed, although it is uncertain when exactly supplies will run out. The risk of shortages is greatest in Asia , and to a lesser extent Europe, as they both rely on oil from the