Shale gas in the United States - Wikipedia
https://en.wikipedia.org/wiki/Shale_gas_in_the_United_States
OverviewShale gas productionHistoryShale gas by locationEconomic impactsPolitical impactEnvironmental issuesPopular cultureShale gas in the United States is an available source of unconventional natural gas. Led by new applications of hydraulic fracturing technology and horizontal drilling, development of new sources of shale gas has offset declines in production from conventional gas reservoirs, and has led to major increases in reserves of U.S. natural gas. Largely due to shale gas discoveries, estimated …
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