"If Middle Eastern oil supplies return quickly, a reasonable target range through the end of the year would be $70-75 per barrel," Research Director at Implementa Maria Belova said

Alexey Belogoryev said that attempts to break through the $75 mark down are possible but it will be difficult to gain a foothold below

Kirill Bakhtin from BCS Investment World said there is a lot of uncertainty both on the future resolution of controversial issues and on Israel's participation in the deal