Forrest Smith was forced to step down last month as the National Park Service’s chief petroleum engineer. He wasn’t replaced.

When oil and gas are pumped from the ground, they come up with briny fluid called “produced water,” many times saltier than the sea and laden with chemicals.

Salt water laced with cancer-causing chemicals, a byproduct of oil and gas drilling, is spewing from old wells. Experts warn ...

(Source NM file photo) New Mexico state Democratic lawmakers on Thursday expressed concerns that the process governing a proposal to revamp rules governing oil and gas wastewater ... safety had gone ...

Residents near Enid say the smell of an oilfield waste disposal site made them feel sick. State officials weren’t sure who was in charge of enforcement.