With the most recent data from the Energy Information Administration and the CIA World Factbook, here are the countries with the biggest proven oil reserves.
The International Energy Agency says Libyan oil exports have "ground to a halt" because of the fighting between rebels and forces loyal to Libyan leader Moammar Gadhafi.
Saudi Arabia has handed out about $37 billion, while Oman, Bahrain, Libya and Kuwait have boosted domestic spending up to 4 percent of GDP. The result is the sovereign wealth funds are less able to invest overseas.
Throughout the recent unrest in the Middle East, virtually no oil production has been affected, save in Libya, Sara Akbar, CEO of Kuwait Energy, told CNBC Tuesday.
With data from the Energy Information Administration (EIA), a division of the Department of Energy, CNBC.com took a look at the countries that produce the most crude oil on a daily basis.