SubscribeTar sands deposits are found all over the world, with the largest deposits located in Venezuela and Alberta, Canada. While not a proven reserve of oil, tar sands represent as much as 66% of the world's deposits of oil, with 34% (286 km³ or 1.8 trillion barrels) in the Venezuelan Orinoco tar sands deposit, 32% (270 km³ or 1.7 trillion barrels) in Canada's Athabasca Tar Sands deposit and the remaining 33% (278 km³ or 1.75 trillion barrels) in conventional oil, much of it in Saudi Arabia and other Middle-Eastern countries.So something like a quarter of the world's oil is still in Alberta. The dinky bit of oil in the ANWR isn't even worth thinking about.
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posted by signal at 10:29 AM on March 15, 2005