GENEVA—On June 1, Borussia Dortmund will play Real Madrid in the UEFA Champions League final at London's Wembley Stadium. Fans from Germany and Spain will be joined by thousands of corporate sponsors and their guests. Any one of them who assumes they will be able to fly out of the UK after the match finishes around 10 p.m., though, might be in for a surprise.
This isn’t an aviation fuel shortage. It’s a refining capacity crisis.
When people hear about jet fuel shortages, they often assume the problem is a lack of crude oil, geopolitical disruptions, or transportation bottlenecks. While these factors can contribute, they are...



