Reuters | Saudi Arabia's oil reserves: how big are they really? - Kemp Reuters is a question that has intrigued and confounded oil experts for five decades. The kingdom has proven reserves of 266 billion barrels according to government estimates submitted to the Organization of the Petroleum Exporting Countries (“Annual ... U.S. has more untapped oil than Saudi Arabia or Russia U.S. Holds More Oil Than Saudi Arabia or Russia, Rystad Energy Says Rally Over? Oil Down 4 Percent |