Kentucky Natural Gas Corporation

American Gas Association	http://www.aga.org/
American Gas Foundation	http://www.gasfoundation.org
American Petroleum Institute	http://www.api.org/
Energy Information Administration	http://eia.doe.gov/
Gas Technology Institute	http://www.gastechnology.org/
Independent Producers Association	http://www.ipaa.org/
Kentucky Geological Survey	http://www.uky.edu/KGS/
NaturalGas.org	http://www.naturalgas.org/
Strategic Center for Natural Gas	http://www.netl.doe.gov/scngo/
U.S. Geological Survey	http://www.usgs.gov/