However , the impact would not be immediate , because Iran would not be able to implement measures that are needed to lift sanctions until the end of 2015 .
Millions of barrels of Iranian oil might come onto global markets , lowering the price of crude oil .
The impact would not be immediate , because Iran would not be able to implement measures that are needed to lift sanctions until the end of 2015 .
Millions of barrels of Iranian oil might come onto global markets , lowering the price of crude oil .