Want to understand the basics of shale gas? Then the U.S. Energy Information Administration has the primer for you. Key facts include:
- U.S. shale gas plays could provide approximately 110 years of use in the United States at 2009 rates of consumption.
- Shale gas (or natural gas extracted from shale resources) made up 14% of total U.S. natural gas supply in 2009. The EIA estimates that this share could increase to 45% by 2035.
- Natural gas is a predominantly domestic energy resource -- 87% consumed in the United States in 2009 was also produced in the United States.
There's much more, including links to other relevant EIA reports and some helpful visuals. This is an excellent starting point for further research.