Managing Director of Iran Central Oil Fields Company (ICOFC), Salbali Karimi, signed the deal on behalf of the NIOC with Managing Director of Gazprom Neft Company Alexander Dyukov.

Changuleh oil field is in Ilam Province, 50 kms southeast of Mehran city and 10 to 15 kms from Iran-Iraq border line. It lies on the northern margins of Dezful  and between Dehloran and Azar oil fields.

Cheshme Khosh also in Dasht Abbas in Ilam province, 52 kms from south of Dehloran city and 70 kms west of Andimeshk city. The operations for exploitation of the field started in 1975 and is run by the ICOFC.

Prior to signing the MoU, Zangeneh said in a meeting with Novak that once the deal is signed, number of the fields whose study has been entrusted to Russian companies will reach seven and consequently, Russia will reserve maximum share in study of Iranian oil fields.