File:Shaleusa2.jpg(173182 bytes) {{Information |Description=United States shale gas plays |Source=http://www.eia.doe.gov/oil_gas/rpd/shaleusa2.pdf |Date=November 2008 |Author=US
File:AntrimShaleMap.JPGapplies to jurisdiction: United States of America determination method: work of the federal government of the United States determination method: SHA-1