Letter from Congressional Natural Gas Caucus co-chairman Tim Murphy (PA) and Dan Boren (OK) to Energy and Commerce Committee Chairman Waxman

Last month, you sent a detailed memorandum to members of the Subcommittee on Energy and the Environment identifying several of your concerns related to hydraulic fracturing, an energy technology that has been in use for more than a half-century now, but one that has received additional attention as of late pursuant to its roll in unlocking enormous reserves of previously unreachable natural gas from American shale.