Via EnergyBulletin.net comes this map showing world oil reserves and oil consumption by country at year-end 2004. (Click on the map for a full-size image, or here for the original.) What's neat about the map is that the size of each country is proportional to its share of the world's oil reserves. At a glance, one can tell that Saudi Arabia held most of the world's oil, or about 22.3% of all reserves.

The amount of oil consumed determines each country's color. Although the U.S. had only 1.8% of the world's oil at year-end 2004, it was the biggest oil consumer. China, Russia, Canada, Mexico, and Brazil were also among the world's top oil consumers.

As of Jan. 1, 2006, Saudi Arabia still controlled the largest percentage (20.6%) of the world's oil reserves. More recent statistics on the size of each country's oil reserves can be found on page 107 of The World Almanac 2008.

Also, check out the two bar graphs depicting the world's major consumers and producers of primary energy in 2005, on page 105 of the Almanac. Among all countries, the U.S. still consumed the most primary energy (petroleum, natural gas, coal, net hydroelectric, nuclear, geothermal, solar, wind, and wood and waste electric power). That same year, however, the U.S. led the world in primary energy production.

Map source: BP Statistical Review Year-End 2004, Energy Information Administration (Aaron Pava, CivicActions)