Oil Production by Country - Graphic - 2017

The graphic above shows that the top five countries produce half the world's oil. These countries in order are (1) Russia, (2) Saudi Arabia, (3) The United States, (4) Iraq, (5) Iran. In addition to the top five producers, there are 93 other global producing countries. These other 93 countries produce the remaining 50% of world output.

The top twenty producing countries produce roughly 90% of world oil. These countries contribute between 1-10% of global output. Should any one country see sharp reductions in output due to operational or geopolitical instability these data give national security experts, world leaders, and financial traders an idea of the impact magnitude. For example, should Venezuela output decline, the maximum impact on global supply would be roughly a 3% reduction.