Iran's March crude exports to fall to lowest since sanctions kicked in-sources

TOKYO/SINGAPORE: Iran's crude oil exports in March may plunge by a quarter from a month earlier to the lowest since tight Western sanctions came into effect in 2012, industry sources said, squeezing income for Tehran as sanctions cast doubt over its future revenues.

Iran vows to confront "malicious" embargo

(Reuters) - Iran pledged to counter the impact of a European Union oil embargo which took full effect on Sunday, saying it had built up $150 billion in foreign reserves to protect itself.

U.S. tightens oil sanctions on Iran

NEW YORK (CNNMoney) -- President Obama ratcheted up the pressure on Iran Friday, deciding to implement previously announced sanctions that will be the toughest to date.