From 'the energy intelligence research report' - 'iraqi oil and gas: A bonanza-in-waiting.'
"just seventeen of iraq's eighty known oil fields have been developed. Only modest development work has been carried out in recent years anywhere in iraq and no significant exploration has been done for 20 years. The largest known fields are evenly distributed between the north and south of iraq and eir reports that east baggead could be a giant field once it has been fully appraised. The largest known fields are kirkuk, and rumaila in the south, but there is potential for for vast amounts of oil across virtually all of iraq, including the western desert. Eir estimates that while iraq proven oil reserves are second only to saudi's, it's 200 billion-plus barrels of probable reserves could put it in competition for the top spot. Therefore, the development of untapped fields could yield billions of gallons of oil and trillions of dollars in revenue "