LIUNA members worked about 400,000 hours on such jobs. By 2012, it had risen to 5.7 million hours.
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After early complaints that out-of-state firms got the most jobs, some local construction workers and union members in Pennsylvania, Ohio and West Virginia say they’re now benefiting in a big way from the Marcellus and Utica Shale fracking boom.

That vocal support from blue-collar workers complicates efforts by environmentalists to limit drilling.