The two countries also have allies who also do not get along very well. On Iran's side are Iraq, Russia and the Bashar al-Assad regime in Syria, Hezbollah in Lebanon and the Houthi rebels in Yemen. On the Saudi side, for example, are the United Arab Emirates and Egypt. In addition, the Trump administration in the US has shown strong support for Saudi Arabia's Crown Prince Mohammed bin Salman.

But why does the conflict in the Middle East affect Swedish fuel prices?