After a series of earthquakes recently erupted near Oklahoma’s Arbuckle formation, state regulators have called for oil and gas operators to reduce well wastewater, affecting 23 disposal wells. 

A 4.0 magnitude and a few smaller magnitude earthquakes hit Carney, OK, earlier this month. The tremors led the Oklahoma Corporation Commission’s (OCC) Oil and Gas Conservation Division (OGCD) to shut in 12 disposal wells. Injections are to be gradually reduced at another 11 disposal wells in the Arbuckle, the state’s deepest formation. 

Thirteen exploration and production (E&P) operators were impacted by the shut-ins. They are Contango Resources LLC, Eastok Energy Partners LLC, Enersource Petroleum Inc., EOK Operating LLC, Express Oil & Gas LLC, Freedom Operating Co. LLC, Marbet...