In the event of fuel and heating oil shortages, Switzerland can draw on compulsory stockpiles. It does not have to share these with other countries. Despite the ongoing war in Iran and the closure of the Strait of Hormuz, petrol and diesel continue to flow at Swiss petrol stations and planes are still taking off. The situation for kerosene, however, is tighter. According to the Federal Office for National Economic Supply (FONES), supplies to Swiss airports are secure until the end of May 2026. If bottlenecks occur, the federal government can release fuel and heating oil from compulsory stockpiles (see infobox). Aviation fuel reserves below target If serious shortages emerge, the government can draw on mandatory stockpiles managed by the private sector under federal supervision: national reserves of petrol, diesel and heating oil are designed to last four-and-a-half months, while kerosene stocks typically cover three months. Owing to the ongoing war in Iran, kerosene is becoming …