MAPS and INFORMATION

U.S. Energy Informaiton Administration - Independent Statistics and Analysis
Energy Sources (Link to Home Page)  http://www.eia.doe.gov/

U.S. Natural Gas Data, Reports, Analyses, Maps, Forecasts, International Data
http://www.eia.doe.gov/oil_gas/natural_gas/info_glance/natural_gas.html

Lists of various and high quality U.S. Natural Gas Maps (pdf, jpg, GIS data)
http://www.eia.doe.gov/pub/oil_gas/natural_gas/analysis_publications/maps/maps.htm