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.

The Frontier is small but scrappy. In just the last six months, our reporting has helped uncover questionable safety standards at a poultry plant where a man died after falling into an auger.

Oklahoma has spent years reshaping public schools to integrate lessons about Jesus and encourage pride in America’s history. By the time the second Trump administration began espousing its “America ...

Oklahoma officials repeatedly rejected Thompson’s release, weighing the violent nature of the crime over his efforts to ...

Current and former employees describe a punishing pace of work and questionable safety standards at a Heavener plant where ...

Salt water laced with cancer-causing chemicals, a byproduct of oil and gas drilling, is spewing from old wells. Experts warn of a pollution crisis spreading underground and threatening Oklahoma’s ...

Private donations have kept the resource hotlines running for nearly a decade while state money has been on hold. It’s been nearly a decade since Oklahoma has provided funding to the state’s 211 ...

As deadlines in the federal court case against the Oklahoma law criminalizing unlawful presence loom, attorneys fighting the ...

The following is a condensed interview with Sen. Ally Seifried, R-Claremore. For the full interview, listen to our podcast. The Frontier: We spoke back in the spring about the cellphone bill you ran ...

Plaintiffs claim the state agency has provided false information about progress on promised reforms, leaving people with severe mental illness languishing in jails for months without treatment.

Join nonprofit newsrooms The Frontier and ProPublica to discuss how oil and gas extraction is contaminating Oklahoma’s groundwater.