Oil is the liquid that makes the world go round, the defining life force of entire industries and global markets. Every country around the world that extracts this resource is, in its own way, part of the invisible machinery that powers daily life: commutes, deliveries, flights, plastics, fertilizers, and the long chain of factories and ships that keep store shelves stocked.
Countries measure their oil extraction in barrels, with one barrel amounting to 42 US gallons (159 liters). Each day, millions of barrels of oil are brought to the surface from deep within the earth, and it becomes the valuable commodity that builds the world up. So, which countries extract the most oil? Click on to find out.