Oil companies may keep injecting waste into aquifers State says there's no immediate risk, water needs to be treated anyway But clean water activists say it's illegal and risky California regulators ...

Drillers’ injection of wastewater is creating mayhem across the Permian Basin, raising concern about the future of fossil-fuel production there ...

Recent earthquakes that rattled the Cogdell oil field in northern Texas were triggered by gas-injection wells meant to boost oil production, a study finds. People living in Snyder and other towns near ...

Attorneys for the city of Midland, the oil capital of Texas, made an unusual request to regulators this year: Could they please be allowed to challenge drilling permits? Midland isn’t contesting ...