Oklahoma rests on top of the Caney and Woodford Shale areas. From 2005 to 2012, studies estimated that Oklahoma used 10 billion gallons of freshwater in fracking operations. Earthquakes have also become more prevalent in the region since fracking operations began.
Legislative measures in Oklahoma focus mainly on chemical disclosure rather than limiting fracking activities. As of January 2014, operators of all oil and gas wells in the state must report the chemicals used in hydraulic fracturing. In May 2015, lawmakers voted to ban communities from enacting local fracking bans.
Did You Know?
In June 2015, the Oklahoma Supreme Court ruled that citizens had the right to sue the oil and gas companies for drilling-induced earthquakes shown to cause personal injuries or property damages.
Last Updated: September 29, 2015
The Fracked Fact Quiz
For More Information:
- unEARTHED: Earthquake Roulette
- News release: In Effort to Protect Public, Health Groups Seek Fracking Chemical Information
The Fraccidents Map:
High profile incidents ("fraccidents") related to the country's oil and gas drilling boom have occurred in and around Oklahoma. Click on each 
fraccident to learn more: