News roundup: Energy rigs in U.S. cap longest streak of gains in two years … Unions get creative to halt decline in membership … 19th-century patents re-created for 3-D

    Insider
    All jacked up: The number of rigs targeting oil and natural gas in the U.S. increased for the fifth straight week to the highest level this year as producers boosted natural-gas plays in the Marcellus…

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