Shana � A senior Iranian oil official said Russian oil major Gazprom Neft will submit the result of its studies on two Iranian oil fields, Changouleh and Cheshmeh Khosh, to the National Iranian Oil Company (NIOC) on Tuesday.

Amir Hossein Zamaninia, deputy petroleum minister for international affairs and trading, hosted a meeting with the Russian company's officials including Vladislav Baryshnikov, Gazprom Neft's deputy general director, in his Tehran office on Monday.

Gazprom Neft has signed memorandums of understanding (MoU) with Petroleum Engineering and Development Company (PEDEC) for carrying out studies on Changouleh and Iranian Central Oil Fields Company (ICOFC) for studying Cheshmeh Khosh oilfields.

Iran and Russia has signed a cooperation roadmap based on which workshops will be held in the two countries on enhanced oil recovery and maximization of oil production from oilfields.

Gazprom Neft is the fourth largest oil producer in Russia and ranked third according to refining throughput.

It is a subsidiary of Gazprom, which owns about 96% of its shares. The company is registered and headquartered in St. Petersburg after central offices were relocated from Moscow in 2011.