Iraq's oil reserves have increased to 153 billion barrels, from a previous estimate of 143 billion barrels, Oil Minister Jabar al-Luaibi said on Sunday.
Iraq will ask the Organization of the Petroleum Exporting Countries to adopt the new figure as the official estimate for its reserves, he said in a statement.
The increased estimate is the result of appraisals and exploration carried out at seven oil fields in central and southern Iraq, he said.
Iraq's new proven reserves estimate brings it closer to Iran's 158 billion barrels. It is OPEC's second-largest producer, after Saudi Arabia.
Venezuela and Saudi Arabia lead OPEC's 14 members in terms of oil reserves, with 301 billion barrels and 266 billion barrels respectively, according to the organization’s website.