FILE - In this July 27, 2011 file photo, Range Resources workers stand near the rig that drills into the shale at a well site in Washington, Pa. The company is one of many drilling and "fracking" in ... more 
FILE - In this July 27, 2011 file photo, Range Resources workers stand near the rig that drills into the shale at a well site in Washington, Pa. The company is one of many drilling and "fracking" in the area to release natural gas. The federal government needs to track safety hazards tied to thousands of unregulated pipelines gathering new oil and gas supplies released through the fracking process, according to a new report by the Government Accountability Office. (AP Photo/Keith Srakocic, File) less 
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Associated Press | Photo By Keith Srakocic, File
Fri, Mar 23, 2012 4:02 AM EDT