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grntuscarora

(1,249 posts)
3. My understanding is
Wed Feb 29, 2012, 09:42 PM
Feb 2012

that fracking of vertical wells to increase output has been done as far back as the 1940s. But the kind of horizontal fracking that they're doing all across my state of PA is relatively new--- within the past 8 years or so.
Please correct me if I'm wrong on this--- I'm trying to learn.

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