EU ban on Iranian oil: What you need to know
2 July 2012 Last updated at 13:15 BST
The European Union stopped buying oil from Iran since 1 July in order to target the country's main source of income.
And even though it was feared that such a move would increase the price of oil in the global markets, Saudi Arabia is pumping more oil to minimize the impact.
BBC Persian's Amir Paivar explains what's at stake.