A spokesman for Iran's Foreign Ministry says they've made clear that agreement will not be reached with the US unless concrete guarantees have been made.

The comments come ahead of a meeting of Iran with the E3 - Britain, France, and Germany - in Istanbul on Friday to lay the foundations for US-Iran talks after.

The US want Iran to quit its nukes. That's the long story short.

Oil markets are watching on for the prospect of more supply from Iran in the event of agreements.

Meanwhile, on oil:

The Iranian Deputy Foreign Minister Abbas Araghchi spoke to Japanese media, NHK, Friday. 
Source: Forex Live