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Thinking carefully about tight oil / Michael Levi, Energy, security and climate, February 7, 2013http://blogs.cfr.org/levi/2013/02/07/thinking-carefully-about-tight-oilA piece in Slate by Ray Pierrehumbert arguing that tight oil abundance is a myth is making the rounds. The essay makes some fair warnings against irrational exuberance when it comes to hundred year supplies, claims of endless energy independence, and complacency on climate change as a result of abundant natural gas. But the piece does at least as much to confuse as illuminate. Fortunately, that provides a good opportunity to look at a few important misunderstandings that frequently arise in discussions about U.S. oil...