Speaking to Shana, Ali Kardor said the oil fields west of Karoun river are now yielding 260,000 barrels of crude oil per day and are ready for official inauguration.
Iranian President Hassan Rouhani is scheduled to officially inaugurate three major oil projects in the region on Sunday.
The projects are the first phase development of Yadavaran Oilfield with 85,000b/d of crude output, the first phase development of North Azadegan Oilfield with 75,000b/d of production capacity North Yaran Oilfield with production capacity of 30,000b/d, said Kardor.
For the time being production of oil from the fields stands at: South Azadegan 40,000b/d, North Azadegan 75,000b/d, North Yaran 30,000b/d and Yadavaran 115,000b/d.
The NIOC chief further said production from the region will cross 300,000b/d once production from South Azadegan and South Yaran fields increases.
Iran shares these fields with Iraq. 24 rigs are operating at the fields.
North Yaran Oilfield is developed by Persian Oil and Gas Company with an investment of less than $0.6b.
The three projects has created over 5,000 direct jobs so far, he added.
West Karoun region comprises two oil blocks which consist of North Azadegan, South Azadegen, North Yaran and South Yaran oil fields in its first block and Khoshk and Hosseiniyeh oilf fields in its second block.
The fields contain over 67 billion cubic meters of oil-in-place in their reserves.
Crude oil production from North Azadegan oil field began early this year with 75,000 b/d. Yadavaran also yields 85,000 b/d for the time being. Operation of the fields is being officially inaugurated now that their production has reached a stable level.
The project for development of Yadavaran oilfield will be in three phases, the first phase of which is in stage of operation.
The field has been put into operational since February 2012 following laying of 45-km delivery pipeline, modernization and repair of Darkhowin procedural facilities, drilling five new production wells and repair and completion of three existing exploration wells and eight early production wells in total. It has thus far yielded 20,000 barrels/day of crude.
The second phase of the early production project has increased the oil output level to 50,000 barrels per day.
Azadegan Oilfield has oil-in-place reserves of about 5.6 billion barrels. Taking the recovery rate of the field at 5.5 percent, its recoverable resource is estimated at 330 million barrels of crude oil. The first phase development of the field is being carried out based on buyback deal for a maximum production, refining and transfer of 75,000 barrels of crude. Such a figure will be obtained as a result of drilling 58 wells, including 50 production wells and eight wells for wastewater treatment, enhanced recovery and descriptive wells.
The project for development of North Azadegan will be commissioned in two phases with the target production of 75,000 barrels of crude and extraction of 08.39 million cubic feet/day of associated gas in each phase. The first phase has been put into operation.