By Hassan Hafidh Of DOW JONES NEWSWIRES WEST QURNA, Basra, Iraq -(Dow Jones)- Iraq's super-giant West Qurna Phase One is producing 310,000 barrels of crude a day and output will rise to 400,000 barrels a day by the end of 2011, head of the field operating division said Wednesday. Exxon Mobil Corp. (XOM) and Royal Dutch Shell PLC (RDSA) won the right to develop the 8.7-billion-barrel West Qurna Phase One in a 2009 auction for oil field development contracts. Madhi al-Maliki also said Exxon Mobil has recently awarded Fluor Corp. (FLR) a contract worth up to $250 million to carry out early works for the West Qurna Phase One field. The engineeringp Procurement and construction contract is reimbursable and is a continuing services agreement for oil field-related infrastructure development with an expected duration of three years, he said. Exxon Mobil said Monday that it and joint venture partners have boosted oil output to 285,000 barrels a day but al-Maliki said the field is actually producing 310,000 barrels a day now. -By Hassan Hafidh, Dow Jones Newswires; +962 799 831 831; hassan.hafidh@dowjones.com