The net effect is negligible. EU countries have already committed to stopping Iranian oil imports on Jule 1sy of this year. The Saudi's have committed to increasing production.
(CNBC)- Iran has stopped selling crude to British and French companies, the oil ministry said on Sunday, in a retaliatory measure against fresh EU sanctions on the Islamic state's lifeblood, oil.
"Exporting crude to British and French companies has been stopped ... we will sell our oil to new customers," spokesman Alireza Nikzad was quoted as saying by the ministry of petroleum website.
The European Union in January decided to stop importing crude from Iran from July 1 over its disputed nuclear program, which the West says is aimed at building bombs. Iran denies this.
Iran's oil minister said on Feb. 4 that the Islamic state would cut its oil exports to "some" European countries. The European Commission said last week that the bloc would not be short of oil if Iran stopped crude exports, as they have enough in stock to meet their needs for around 120 days.