ICF International: U.S. oil and natural gas development strengthens our economy
Natural Gas Caucus: Letter to EPA on hydraulic fracturing study panel
Oklahoma State University: Oklahoma oil and gas production employs 80,000 generates $8.6 billion
ALL Consulting: Considerations for natural gas wells of the Marcellus Shale
Quality Environmental Professional Associates: Pathway analysis for oil and gas production
IPAA: Hydraulic fracturing effects on energy supply, the economy, and the environment
The Perryman Group: Barnett Shale supports over 83,000 jobs per year
IPAA: Oil & gas producing industry in your state
API: Hydraulic fracturing at a glance
