FACTBOX: Iraq oilfields offered for long-term contracts

(Reuters) - Following are the Iraqi oilfields on offer for long-term development contracts in the first bidding round since the U.S.-led invasion of the country in 2003.

The reserves the fields hold are larger than those of the United States and Britain combined, according to the following data from consultancy Wood Mackenzie. Over 43 billion barrels of Iraq's 115 billion barrels of reserves lie in the fields.

Oil reserves are in millions of barrels, capacity and potential in barrels per day.

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OIL 2008 PRODUCTION

OILFIELDS RESERVES CAPACITY POTENTIAL

Bai Hassan 2,292 100,000 200,000

Kirkuk 8,550 350,000 600,000

Maysan Fields* 2,463 110,000 285,000

Rumaila 16,998 1,100,000 1,400,000

West Qurna, Phase 1 8,682 400,000 650,000

Zubair 4,040 200,000 400,000

TOTAL 43,025

Gas reserve data in trillion cubic feet, and potential in million cubic feet per day:

GAS PRODUCTION

GAS FIELDS RESERVES POTENTIAL

Akkas 2.1 500

Mansuriyah 3.3 330

*Maysan comprises three fields --Bazargan, Abu Gharab and Fakka in southern Maysan province)

(Compiled by Simon Webb; Editing by William Hardy)