The oil industry says that production at the field in Masjed-e Soleyman, Iran's first oilfield that started producing just over a century ago, is now back up to 28,000 barrels a day.
Qalavand said, "In a century of production, about 20 percent of the oil in Masjed-e Soleyman has been extracted.
He said production from Masjed-e Soleyman was expected to rise further to 55,000 barrels a day.
The Iranian private sector and the Chinese entities are to invest $4 billion dollars in the Masjed-e Soleyman
Petrochemical Complex, in southern Iran.
Oil pumping has now been resumed at nine of 17 abandoned wells at the country's oldest oilfield in Masjed-e Soleyman.
But it will be a psychological boost because Masjed-e Soleyman is the oldest field in Iran and the entire Middle East.
PEDCO), said Masjed-e Soleyman would only be able to keep up output at the rate of 25,000 barrels a day for four years before output would start to decline again and drop to zero over 20 more years.
British engineers spudded in oil at Masjed-e Soleyman in Khuzestan province on May 26, 1908, a few weeks after they received--and ignored--orders to abandon the search for oil in Iran and come home.
In August 2008, a few months after the celebration of the centennial of oil in Iran, a senior oil official announced that Iran had resumed production at Masjed-e Soleyman.
A senior oil official announced Sunday that Iran has resumed production from Iran's very first oilfield at Masjed-e Soleyman.
Masjed-e Soleyman is where oil was first discovered in Iran May 26, 1908, in Khuzestan province in the far southwest.
The Fars news agency reported Sunday that Hojatollah Ghanimifard, deputy managing director of the National Iranian Oil Company (NIOC), had announced the resumption of operations at Masjed-e Soleyman.