Global oil reserve ranking
OPEC Share of World Crude Oil Reserves. According to current estimates, 79.4% of the world's proven oil reserves are located in OPEC Member Countries, with the bulk of OPEC oil reserves in the Middle East, amounting to 64.5% of the OPEC total. The ability to extract oil sands for a reasonable cost has increased the amount of proven reserves. Most of it, totaling about 166 billion barrels, is in Alberta, Canada. The United States imported 1.236 billion barrels from these fields in 2014. Oil sands are sand mixed with a thick substance called bitumen. On a global basis, Rystad estimates that the world has about 2,092 billion barrels of reserves, or about 70 years’ worth of oil at today’s production rate of 30 billion barrels per year.