How the U.S. got hooked on foreign oil

For nearly a century, the U.S. was the largest oil producer in the world. But rising demand and stalled production led to America's increasing dependence on foreign oil, and energy independence became the fight of every president. Today, we're nearly there. By 2020, the United States is predicted to become a net energy exporter. But how did we get there?
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Sun, Jun 16 20197:50 AM EST