2.6 trillion barrels of oil reserves the world's largest oil reserves in the world reserves largest oil reserves in the world world’s biggest crude oil reserves largest oil reserves in the world largest oil reserves in the world shows OPEC Share of World Crude Oil Reserves 81 percent the world's largest 80 percent of the world’s commercially viable oil reserves http://www.opec.org/opec_web/en/data_graphs/330.htm oil reserves in the world http://www.opec.org/opec_web/en/data_graphs/330.htm 81 percent OPEC largest oil reserves in the world "OPEC Share of World Crude Oil Reserves 2011" according to OPEC http://www.opec.org/opec_web/en/data_graphs/330.htm "OPEC Share of World Crude Oil Reserves" 81.3 percent of the world's oil reserves 2.6 trillion barrels of oil reserves the world's largest «OPEC Share of Crude Oil Reserves 2011» oil reserves in the world 89% of estimated world oil reserves percent the world's largest 81% of the world’s proven crude oil reserves world’s biggest crude oil reserves OPEC data OPEC data OPEC Share of World Crude Oil Reserves 2011 81 percent http://www.opec.org/opec_web/en/data_graphs/330.htm OPEC: "OPEC Share of World Crude Oil Reserves" http://www.opec.org/opec_web/en/data_graphs/330.htm 81 percent largest oil reserves in the world largest oil reserves in the world 81 percent oil reserves in the world largest proven oil reserves 81 percent the world's largest largest oil reserves in the world largest oil reserves in the world http://www.opec.org/opec_web/en/data_graphs/330.htm according to OPEC largest oil reserves in the world Opec: Share of the World Crude reserves "OPEC Share of World Crude Oil Reserves 2011" the world's largest «OPEC Share of Crude Oil Reserves 2011» OPEC Share of World Crude Oil Reserves oil reserves http://www.opec.org/opec_web/en/data_graphs/330.htm 81.3 percent of the world's oil reserves "OPEC Share of World Crude Oil Reserves" largest oil reserves in the world oil reserves http://www.opec.org/opec_web/en/data_graphs/330.htm "OPEC Share of World Crude Oil Reserves" OPEC Share of World Crude Oil Reserves largest oil reserves in the world http://www.opec.org/opec_web/en/data_graphs/330.htm "OPEC Share of World Crude Oil Reserves" 81 percent largest oil reserves in the world largest oil reserves in the world largest oil reserves in the world "OPEC Share of World Oil Reserves 2010" http://www.opec.org/opec_web/en/data_graphs/330.htm according to Organization of the Petroleum Exporting Countries (OPEC) "OPEC Share of World Crude Oil Reserves" http://www.opec.org/opec_web/en/data_graphs/330.htm OPEC Share of World Crude Oil Reserves largest oil reserves in the world OPEC OPEC Annual Statistical Bulletin 2012 http://www.opec.org/opec_web/en/data_graphs/330.htm http://www.opec.org/opec_web/en/data_graphs/330.htm largest oil reserves in the world data from Opec reserves http://www.opec.org/opec_web/en/data_graphs/330.htm largest estimated oil reserves 81.3 percent of the world's oil reserves stated 81.3 percent of the world's oil reserves largest oil reserves in the world 81.3 percent of the world's oil reserves 81 percent the world's largest oil reserves in the world «OPEC Share of World Crude Oil Reserves» largest oil reserves in the world OPEC 81.3 percent of the world's oil reserves http://www.opec.org/opec_web/en/data_graphs/330.htm largest oil reserves in the world largest oil reserves in the world 2.6 trillion barrels of oil reserves largest oil reserves in the world http://www.opec.org/opec_web/en/data_graphs/330.htm largest oil reserves in the world the world's largest largest proven oil reserves largest oil reserves in the world according to OPEC the world's largest largest oil reserves in the world the world's largest OPEC Share of World Crude Oil Reserves oil reserves in the world largest oil reserves in the world largest oil reserves in the world largest proven crude reserves OPEC Share of World Crude Oil Reserves 2011 81.3 percent of the world's oil reserves percent http://www.opec.org/opec_web/en/data_graphs/330.htm largest oil reserves in the world 81 percent "OPEC Share of World Crude Oil Reserves" the world's largest oil reserves in the world largest oil reserves in the world OPEC Share of World Crude Oil Reserves 2011 largest oil reserves in the world OPEC Share of World Crude Oil Reserves 2011 the world's largest stated 81 percent shows according to a 2012 IEA analysis "OPEC Share of World Oil Reserves 2010" http://www.opec.org/opec_web/en/data_graphs/330.htm Source largest oil reserves in the world OPEC-Reserven according to OPEC http://www.opec.org/opec_web/en/data_graphs/330.htm http://www.opec.org/opec_web/en/data_graphs/330.htm OPEC Share of World Crude Oil Reserves 2011 largest oil reserves in the world OPEC largest oil reserves in the world "OPEC Share of World Crude Oil Reserves" «OPEC Share of World Crude Oil Reserves» largest oil reserves in the world OPEC Share of World Crude Oil Reserves 2011 http://www.opec.org/opec_web/en/data_graphs/330.htm the world's largest Organization of the Petroleum Exporting Countries (OPEC) oil reserves in the world proven oil reserves 2.6 trillion barrels of oil reserves largest oil reserves in the world the world's largest http://www.opec.org/opec_web/en/data_graphs/330.htm largest oil reserves in the world according to OPEC the world's largest 81% of the world’s proven crude oil reserves http://www.opec.org/opec_web/en/data_graphs/330.htm proven oil reserves the world's largest 81.3 percent of the world's oil reserves "OPEC Share of World Crude Oil Reserves" the world's largest http://www.opec.org/opec_web/en/data_graphs/330.htm largest oil reserves in the world largest oil reserves in the world http://www.opec.org/opec_web/en/data_graphs/330.htm largest oil reserves in the world http://www.opec.org/opec_web/en/data_graphs/330.htm http://www.opec.org/opec_web/en/data_graphs/330.htm OPEC's website le statistiche Opec Opec reserves data http://www.opec.org/opec_web/en/data_graphs/330.htm 2.6 trillion barrels of oil reserves according to OPEC 2.6 trillion barrels of oil reserves oil reserves in the world even larger oil reserves «OPEC Share of World Crude Oil Reserves» oil reserves according to OPEC 81.3 percent of the world's oil reserves "OPEC Share of World Crude Oil Reserves" stated http://www.opec.org/opec_web/en/data_graphs/330.htm 2.6 trillion barrels of oil reserves 81.3 percent of the world's oil reserves stated the world's largest largest oil reserves in the world 81.3 percent of the world's oil reserves 2.6 trillion barrels of oil reserves proven oil reserves 81 percent «OPEC Share of World Crude Oil Reserves» reserves the world's largest http://www.opec.org/opec_web/en/data_graphs/330.htm http://www.opec.org/opec_web/en/data_graphs/330.htm OPEC: "OPEC Share of World Crude Oil Reserves"