Iran produces about 4 million barrels oil per day, half of which is exported to European countries, an official said.

Iran's oil minister Bijan Zanganeh said Wednesday that OPEC will continue its production curb but there is debate among members about how long it will continue, Reuters reported.

Following the conclusion of the St. Petersburg International Economic Forum (SPIEF) on Saturday, Iran's deputy oil minister for international affairs Amir-Hossein Zamaniniya talked to Sputnik about the prospects for Russian companies developing Iranian oil and gas fields.