PITTSBURGH (AP) — The final report from a landmark federal study on hydraulic fracturing, or fracking, found no evidence that chemicals or brine water from the gas drilling process moved upward to ...

PITTSBURGH — A landmark federal study on hydraulic fracturing shows no evidence that chemicals from the natural gas drilling process moved up to contaminate drinking water aquifers at a western ...

WHITELEY, Pa. -- Fishermen are gearing up and hunters are taking aim -- for Marcellus Shale gas drilling. A new coalition of outdoors groups is emerging as a force in the debate over natural gas ...

THE DISCOVERY and development of the Marcellus shale natural gas deposits has been big news in Pennsylvania and neighboring states for several reasons. One is the massive energy resource it represents ...

Sen. Bob Casey, D-PA, is campaigning against hydraulic fracturing in natural gas drilling by introducing a bill to remove the long-standing exemption in the Safe Drinking Water Act that allows energy ...

Preface -- Abstract -- Introduction and background. Basic geology. Geologic framework ; Geologic structure ; Formation of black shale ; Marcellus boundaries -- Petroleum and natural gas formation.

NEW YORK, Oct 1 (Reuters) - New York State's proposed new environmental rules allowing drilling for natural gas in the multi-state Marcellus Shale formation face opposition from environmentalists and ...