Studies: Safety, Regulations

International Energy Agency: U.S. leads world in CO2 reductions thanks to natural gas (December 2011)

Univ. of Texas: No evidence of groundwater contamination from hydraulic fracturing (February, 2012)

Center for Rural Pennsylvania: Marcellus Shale development no impact on rural drinking water supplies (November, 2011)

Climate Change Journal: Cornell professor finds Howarth GHG study critically flawed (January, 2011)

Groundwater Protection Council: State oil and natural gas regulations protecting water resources (May, 2009)

U.S. Department of Energy: Environmental benefits of oil and gas exploration and production (October, 2010)

U.S. EPA: Hydraulic fracturing of coalbed methane has no impact on water resources (June, 2004)

University at Buffalo: New York regulations provide sound framework for Marcellus Shale development (June, 2012)

G3: Assessing the greenhouse gas impact of natural gas (June 2012)

IHS-CERA: EPA methodology and conclusions flawed in methane emissions study (June, 2011)

ANGA/API: Data shows EPA methane emissions estimates greatly overstated (June, 2012)

Pacific Research Institute: Natural Gas Helping to Lower Global GHG Emissions (April, 2009)

USGS: Little change in stream-water quality from natural gas development (May, 2012)

National Research Council: Hydraulic Fracturing does not pose high seismicity risks (June, 2012)

Baker Botts: U.S. environmental policy regulating natural gas production (April, 2009)

Univ. of Maryland: Natural gas reduces emissions when used in electricity generation (December, 2011)

USGS: Widespread natural contamination in groundwater includes radon and arsenic (September, 2011)

National Petroleum Council: Natural gas operations environmental footprint analysis (September, 2011)

Michigan Department of Public Health: Naturally occurring methane in Michigan’s water wells (October, 1965)

American Exploration and Production Council: The technology behind natural gas supplies (February, 2010)

American Petroleum Institute: Well construction and integrity guidelines (October, 2009)

Advanced Resources International: Environmental and regulatory considerations with natural gas production (April, 2009)

U.S. Department of Energy: Modern shale gas development in the U.S. (April, 2009)

Advanced Resources International: Impacts of policy modifications on U.S. natural gas development (January, 2009)

ALL Consulting: Water management and disposal alternatives for shale gas development (January, 2009)

ALL Consulting: Considerations for natural gas wells of the Marcellus Shale (September, 2008)

U.S. Department of Energy: Increased regulation could impact natural gas supply (June, 2001)

GWPC: Inventory and extent of hydraulic fracturing in coalbed methane wells (December, 1998)