How long will America’s advantage last? Harvard Business School’s Michael Porter, who along with BCG issued a new report in June called “America’s Unconventional Energy Opportunity,” says that America has about a 15-year lead on other nations when it comes to fracking. The most telling number to make that point? The U.S. has 101,117 fracked wells, followed by Canada’s 16,990. By contrast China has 258.

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