Environmental groups plan to challenge the decision in court.
Researchers may have found deep, previously unmapped faults that could be a source of Oklahoma’s earthquake uptick
Scientists have linked thousands of earthquakes to oil-field disposal wells, but new research helps explain why much of the shaking doesn’t line up with maps of known faults.
AG Sued For More Records After Releasing Suppressed Audit That Found Evidence of Conspiracy At Tar Creek
In testimony at meetings in recent years and documents filed in support of its application to the EPA, Oklahoma environmental officials and utility industry representatives argue strongly for more state authority over coal ash.