The 10 most oil-rich states

Ten states accounted for roughly 94% of all onshore U.S. reserves as of the end of 2011, with roughly a third of this in Texas alone — just over 7 billion barrels. In many of these states, the oil industry is a major part of their economies. Based on the U.S. Energy Information Administration’s data on proved oil reserves by states, these are the most oil-rich states in the country.

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