These data are published by the U.S. Energy Information Administration and represent average annual crude oil and condensate field production by country for the period January through November 2025, according to the latest available data as of March 9, 2026.
After this upper level, production falls sharply. Canada ranked fourth at 4.94 million bpd, followed by Iraq (4.39) and China (4.34). In other words, the U.S. alone produced almost more oil than Canada, Iraq and China combined.
Iran was the seventh-largest oil producer in 2025, producing 4.19 million bpd, 5% of global production last year.
While the U.S. remained the largest producer, the Middle East remained the top regional bloc in the ranking. Countries in the region produced 32% of the world’s oil in 2025, or nearly a third of the global total.
Saudi Arabia, Iraq, Iran, Iran, the United Arab Emirates and Kuwait rounded out the top 10. This clustering helps explain why Middle Eastern supply continues to play a disproportionate role in the global oil mix, even though the U.S. holds the top spot individually.
The war in Iran caused significant disruptions to oil production and trade in 2026, resulting in the closure or destruction of many Middle Eastern production facilities.
Even if the war ends soon, many facilities will require significant investment and time to rebuild, as well as a high degree of uncertainty in the key energy trade route, the Strait of Hormuz.
The concentration of production in a few countries and regions becomes even more evident at the lower positions in the ranking of oil-producing countries. The top 10 countries account for 72.2% of global production, meaning that the combined contribution of all other 69 producers (including Romania, which produces 0.05 mb/d or 0.06% of global production) is less than 28%.
