The Ritenour well pad operated by XTO in Fairfield Township in the Laurel Highlands, Westmoreland County.  © Brian Cohen/MSDP 2012

The Ritenour well pad operated by XTO in Fairfield Township in the Laurel Highlands, Westmoreland County.  © Brian Cohen/MSDP 2012

 A gas drilling rig sits above Beaver Run Reservoir in Westmoreland County.  © Brian Cohen/MSDP 2012

A gas drilling rig sits above Beaver Run Reservoir in Westmoreland County.  © Brian Cohen/MSDP 2012

 A wind farm sits at the end of Beaverdam Lake, east of Beaverdale in Cambria County.  The lake, a 360-acre impoundment, is a popular fishing spot.  © Brian Cohen/MSDP 2012

A wind farm sits at the end of Beaverdam Lake, east of Beaverdale in Cambria County.  The lake, a 360-acre impoundment, is a popular fishing spot.  © Brian Cohen/MSDP 2012

 The Behm well pad, Butler County.    
  
 
  
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  Brian Cohen/MSDP 2012

The Behm well pad, Butler County.  © Brian Cohen/MSDP 2012

 The Sarsen gas processing plant, Butler County.    
  
 
  
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  Brian Cohen/MSDP 2012

The Sarsen gas processing plant, Butler County.  © Brian Cohen/MSDP 2012

 Flaring at the Kalp well in the Laurel Highlands of Pennsylvania.    
  
 
  
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  Brian Cohen/MSDP 2012

Flaring at the Kalp well in the Laurel Highlands of Pennsylvania.  © Brian Cohen/MSDP 2012

 The Kalp well sits above Donegal Lake in the Laurel Highlands in Westmoreland County.  The lake is maintained by the Fish and Boat Commission for public fishing and boating.    
  
 
  
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  Brian Cohen/MSDP 2012

The Kalp well sits above Donegal Lake in the Laurel Highlands in Westmoreland County.  The lake is maintained by the Fish and Boat Commission for public fishing and boating.  © Brian Cohen/MSDP 2012

 A gas drilling rig and some of their dairy herd on the Millers' property in Westmoreland County.   © Brian Cohen/MSDP 2012

A gas drilling rig and some of their dairy herd on the Millers' property in Westmoreland County.   © Brian Cohen/MSDP 2012

 The drilling rig on the Millers' farm.   © Brian Cohen/MSDP 2012

The drilling rig on the Millers' farm.   © Brian Cohen/MSDP 2012

 The Oelschlager well in the Laurel Highlands.  © Brian Cohen/MSDP 2012

The Oelschlager well in the Laurel Highlands.  © Brian Cohen/MSDP 2012

 The Oelschlager well in the Laurel Highlands.  © Brian Cohen/MSDP 2012

The Oelschlager well in the Laurel Highlands.  © Brian Cohen/MSDP 2012

 The Oelschlager well in the Laurel Highlands.  © Brian Cohen/MSDP 2012

The Oelschlager well in the Laurel Highlands.  © Brian Cohen/MSDP 2012

 The Oelschlager well in the Laurel Highlands.  © Brian Cohen/MSDP 2012

The Oelschlager well in the Laurel Highlands.  © Brian Cohen/MSDP 2012

 Range Resources’ well pad and rig above the Pittsburgh Mills strip mall in Tarentum, PA, Allegheny County.  © Brian Cohen/MSDP 2011

Range Resources’ well pad and rig above the Pittsburgh Mills strip mall in Tarentum, PA, Allegheny County.  © Brian Cohen/MSDP 2011

 Rex Energy's Lynn North well pad in Butler County.  © Brian Cohen/MSDP 2012

Rex Energy's Lynn North well pad in Butler County.  © Brian Cohen/MSDP 2012

 Williams’ Rial gas well pad under construction. Donegal, PA.  © Brian Cohen/MSDP 2012

Williams’ Rial gas well pad under construction. Donegal, PA.  © Brian Cohen/MSDP 2012

 The drilling rig at Williams’ Rial gas well pad. Donegal, PA.  © Brian Cohen/MSDP 2012

The drilling rig at Williams’ Rial gas well pad. Donegal, PA.  © Brian Cohen/MSDP 2012

 The drilling rig at Williams’ Rial gas well pad. Donegal, PA.  © Brian Cohen/MSDP 2012

The drilling rig at Williams’ Rial gas well pad. Donegal, PA.  © Brian Cohen/MSDP 2012

 A gas drilling rig on Higgins Cemetery Road, Jackson Township, Greene County.  © Brian Cohen/MSDP 2011

A gas drilling rig on Higgins Cemetery Road, Jackson Township, Greene County.  © Brian Cohen/MSDP 2011

 Stoystown wind farm, Somerset County.  © Brian Cohen/MSDP 2011

Stoystown wind farm, Somerset County.  © Brian Cohen/MSDP 2011

 A small natural gas installation in the Laural Highlands.  © Brian Cohen/MSDP 2011

A small natural gas installation in the Laural Highlands.  © Brian Cohen/MSDP 2011

 XTO's Patton well pad and rig in Butler County.  © Brian Cohen/MSDP 2011

XTO's Patton well pad and rig in Butler County.  © Brian Cohen/MSDP 2011

 XTO's Christiansen well pad and rig in the Laurel Highlands.  © Brian Cohen/MSDP 2011

XTO's Christiansen well pad and rig in the Laurel Highlands.  © Brian Cohen/MSDP 2011

 An XTO drilling rig at the Marburger dairy farm in Butler County.    © Brian Cohen/MSDP 2012

An XTO drilling rig at the Marburger dairy farm in Butler County.    © Brian Cohen/MSDP 2012

 XTO's Patton well pad and rig in Butler County.  © Brian Cohen/MSDP 2011

XTO's Patton well pad and rig in Butler County.  © Brian Cohen/MSDP 2011

 Rural Lawrence County was one of the hubs of Marcellus Shale gas drilling in 2012.  © Brian Cohen/MSDP 2012

Rural Lawrence County was one of the hubs of Marcellus Shale gas drilling in 2012.  © Brian Cohen/MSDP 2012

 The Ritenour well pad operated by XTO in Fairfield Township in the Laurel Highlands, Westmoreland County.  © Brian Cohen/MSDP 2012
 A gas drilling rig sits above Beaver Run Reservoir in Westmoreland County.  © Brian Cohen/MSDP 2012
 A wind farm sits at the end of Beaverdam Lake, east of Beaverdale in Cambria County.  The lake, a 360-acre impoundment, is a popular fishing spot.  © Brian Cohen/MSDP 2012
 The Behm well pad, Butler County.    
  
 
  
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  Brian Cohen/MSDP 2012
 The Sarsen gas processing plant, Butler County.    
  
 
  
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  Brian Cohen/MSDP 2012
 Flaring at the Kalp well in the Laurel Highlands of Pennsylvania.    
  
 
  
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  Brian Cohen/MSDP 2012
 The Kalp well sits above Donegal Lake in the Laurel Highlands in Westmoreland County.  The lake is maintained by the Fish and Boat Commission for public fishing and boating.    
  
 
  
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  Brian Cohen/MSDP 2012
 A gas drilling rig and some of their dairy herd on the Millers' property in Westmoreland County.   © Brian Cohen/MSDP 2012
 The drilling rig on the Millers' farm.   © Brian Cohen/MSDP 2012
 The Oelschlager well in the Laurel Highlands.  © Brian Cohen/MSDP 2012
 The Oelschlager well in the Laurel Highlands.  © Brian Cohen/MSDP 2012
 The Oelschlager well in the Laurel Highlands.  © Brian Cohen/MSDP 2012
 The Oelschlager well in the Laurel Highlands.  © Brian Cohen/MSDP 2012
 Range Resources’ well pad and rig above the Pittsburgh Mills strip mall in Tarentum, PA, Allegheny County.  © Brian Cohen/MSDP 2011
 Rex Energy's Lynn North well pad in Butler County.  © Brian Cohen/MSDP 2012
 Williams’ Rial gas well pad under construction. Donegal, PA.  © Brian Cohen/MSDP 2012
 The drilling rig at Williams’ Rial gas well pad. Donegal, PA.  © Brian Cohen/MSDP 2012
 The drilling rig at Williams’ Rial gas well pad. Donegal, PA.  © Brian Cohen/MSDP 2012
 A gas drilling rig on Higgins Cemetery Road, Jackson Township, Greene County.  © Brian Cohen/MSDP 2011
 Stoystown wind farm, Somerset County.  © Brian Cohen/MSDP 2011
 A small natural gas installation in the Laural Highlands.  © Brian Cohen/MSDP 2011
 XTO's Patton well pad and rig in Butler County.  © Brian Cohen/MSDP 2011
 XTO's Christiansen well pad and rig in the Laurel Highlands.  © Brian Cohen/MSDP 2011
 An XTO drilling rig at the Marburger dairy farm in Butler County.    © Brian Cohen/MSDP 2012
 XTO's Patton well pad and rig in Butler County.  © Brian Cohen/MSDP 2011
 Rural Lawrence County was one of the hubs of Marcellus Shale gas drilling in 2012.  © Brian Cohen/MSDP 2012

The Ritenour well pad operated by XTO in Fairfield Township in the Laurel Highlands, Westmoreland County.  © Brian Cohen/MSDP 2012

A gas drilling rig sits above Beaver Run Reservoir in Westmoreland County.  © Brian Cohen/MSDP 2012

A wind farm sits at the end of Beaverdam Lake, east of Beaverdale in Cambria County.  The lake, a 360-acre impoundment, is a popular fishing spot.  © Brian Cohen/MSDP 2012

The Behm well pad, Butler County.  © Brian Cohen/MSDP 2012

The Sarsen gas processing plant, Butler County.  © Brian Cohen/MSDP 2012

Flaring at the Kalp well in the Laurel Highlands of Pennsylvania.  © Brian Cohen/MSDP 2012

The Kalp well sits above Donegal Lake in the Laurel Highlands in Westmoreland County.  The lake is maintained by the Fish and Boat Commission for public fishing and boating.  © Brian Cohen/MSDP 2012

A gas drilling rig and some of their dairy herd on the Millers' property in Westmoreland County.   © Brian Cohen/MSDP 2012

The drilling rig on the Millers' farm.   © Brian Cohen/MSDP 2012

The Oelschlager well in the Laurel Highlands.  © Brian Cohen/MSDP 2012

The Oelschlager well in the Laurel Highlands.  © Brian Cohen/MSDP 2012

The Oelschlager well in the Laurel Highlands.  © Brian Cohen/MSDP 2012

The Oelschlager well in the Laurel Highlands.  © Brian Cohen/MSDP 2012

Range Resources’ well pad and rig above the Pittsburgh Mills strip mall in Tarentum, PA, Allegheny County.  © Brian Cohen/MSDP 2011

Rex Energy's Lynn North well pad in Butler County.  © Brian Cohen/MSDP 2012

Williams’ Rial gas well pad under construction. Donegal, PA.  © Brian Cohen/MSDP 2012

The drilling rig at Williams’ Rial gas well pad. Donegal, PA.  © Brian Cohen/MSDP 2012

The drilling rig at Williams’ Rial gas well pad. Donegal, PA.  © Brian Cohen/MSDP 2012

A gas drilling rig on Higgins Cemetery Road, Jackson Township, Greene County.  © Brian Cohen/MSDP 2011

Stoystown wind farm, Somerset County.  © Brian Cohen/MSDP 2011

A small natural gas installation in the Laural Highlands.  © Brian Cohen/MSDP 2011

XTO's Patton well pad and rig in Butler County.  © Brian Cohen/MSDP 2011

XTO's Christiansen well pad and rig in the Laurel Highlands.  © Brian Cohen/MSDP 2011

An XTO drilling rig at the Marburger dairy farm in Butler County.    © Brian Cohen/MSDP 2012

XTO's Patton well pad and rig in Butler County.  © Brian Cohen/MSDP 2011

Rural Lawrence County was one of the hubs of Marcellus Shale gas drilling in 2012.  © Brian Cohen/MSDP 2012

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