USGS: Appalachian Basin holds 214 tcf of undiscovered natural gas
The United States Geological Survey estimates the Marcellus Shale and Point Pleasant-Utica Shale formations of the Appalachian Basin contain around 214 trillion cubic feet of undiscovered, technically recoverable continuous resources of natural gas. “Watching our estimates for the Marcellus rise from 2 trillion to 84 trillion to 97 trillion in under 20 years demonstrates the effects
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