There are widely varying estimates of how much oil Iraq has. The Energy Information Agency (EIA) puts the 'proven reserves' (the amount known to be in place and economically recoverable) at "over 112 billion barrels." If you believe Saddam's former deputy oil minister, there may be over 300 billion barrels after all of Iraq has been explored. But according to the USGS, there is
only a 5 percent probability that it has 84 bbl of undiscovered reserves, or about a 3 year supply at the current rate of global consumption.
Even using the most wildly optimistic estimate of Iraq's total reserves (300Bb), we would have ten additional years of crude,
IF:
1) Global demand remains at the current 85 million bpd (barrels per day)
-- The latest estimate of world demand by the Energy Information Agency is
for 98 million barrels per day in 2015. The EIA calls for a 47% increase by 2030.
2) All other oil producing nations continue to produce at their current levels, with new discoveries and development replacing any decline in their present fields.
-- But production in the largest fields on the planet, where a bulk of our supply comes from, is declining or believed to have peaked. This includes Cantarell in Mexico, Burgan in Kuwait, and the elephant of 'super-giant' oil fields, Ghawar in Saudi Arabia. Mexico's
Cantarell field is tanking (pun intended) badly. Ghawar may have
declined as much as 8% over the past year.
While it's not inconceivable that they may be trying to mask these shortfalls with Iraqi oil, possibly even using a clever
subterfuge posited by a DU'er, any idea that the planet will continue to increase its oil usage based on even
huge Iraqi reserves, or any other as yet unknown source, is wrong on the surface. And below ground.