This map, produced by BP’s Statistical Review division, shows countries based on known crude oil reserves. The larger the country, the more reserve capacity. As evidenced by the chart, many of the world’s reserves are concentrated in regions characterized by political instability and government corruption.

Notes:

Source: BIP Statistical Review Year End 2004 & Energey Information Adnministration.

http://www.mint.com/blog/trends/mint-map-the-worlds-resources-by-country/