2007 gasoline rationing plan in Iran
The 2007 gasoline rationing plan in Iran was launched by president Mahmoud Ahmadinejad's cabinet to reduce that country's fuel consumption. Although Iran is one of the world's largest producers of petroleum, rapid increases in demand and limited refining capacity have forced the country to import about 40% of its gasoline, at an annual cost of up to USD $7 billion.
Source: Wikipedia — 2007 gasoline rationing plan in Iran (CC BY-SA 4.0)