Did You Know…

• Shale gas refers to natural gas that is trapped within shale formations.
• Shales are fine-grained sedimentary rocks that can be rich sources of petroleum and natural gas.
• Over the past decade, the combination of horizontal drilling and hydraulic fracturing has allowed access to large volumes of shale gas that were previously uneconomical to produce.
• The production of natural gas from shale formations has rejuvenated the natural gas industry in the United States.

Source: http://www.eia.gov/energy_in_brief/article/about_shale_gas.cfm?src=home-f2