| http://www.w3.org/ns/prov#value | - The truth is, however, that only a small share of U.S. oil imports comes from that region; the nation???s largest sources of oil are Canada and Mexico, which together supply more than a third of our oil, with another 24 percent coming from OPEC member countries not in the Middle East, such as Nigeria and Venezuela.40 Oil is sold in a global market, however, and disruptions in the Middle East inevi
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