The state-run National Iranian Oil Company (NIOC) said it had certified five more companies from Russia and Azerbaijan to bid for Iranian upstream energy projects.
"NIOC has added Russia's Gazprom Neft, Rosneft, Tatneft and Zarubezhneft and Azerbaijan's state-owned SOCAR, taking its list of pre-qualified companies to a total of 34," NIOC said on its website.
In January, Iran named 29 companies from more than a dozen countries as being allowed to bid for oil and gas projects using the new, less restrictive Iran Petroleum Contract (IPC) model.
Azadegan is the world's third largest oilfield with in-place reserves of about 33.2 billion barrels and recoverable resources of about 6 billion barrels.
