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http://www.w3.org/ns/prov#value
  • The area is a point where the Utica and Marcellus formations overlap. ???There are two potential targets they most likely have in mind, the Marcellus and the Utica,??? said Terry Engelder, a professor of geosciences at Pennsylvania State University. ???I can speculate with reasonable certainty that the area includes liquids.
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  • vindy.com