Seven GOP candidates are vying to be the next leader of Oklahoma public schools. The Frontier checked the accuracy of ...

Did Gentner Drummond donate money to Joe Biden? Did Mike Mazzei support a bill to end the Electoral College? We checked the ...

The mother of a 23-year-old man claims jail employees failed to adequately monitor him after he told them he had recently ...

Watch how a legacy of oil drilling and regulatory failure destroyed one Oklahoma family’s dream home and contaminated another ...

The Frontier is partnering with collaborators — including KOSU, Focus: Black Oklahoma, Tulsa Flyer, The Oklahoma Eagle, and La Semana — to answer your questions about voting.

The state auditor’s office found more than $25 million in payments violated bidding procedures. Cindy Byrd, state auditor and inspector. BEN FELDER/The Frontier A forensic audit of Tulsa Public ...

A growing number of women are facing criminal charges for substance use during pregnancy in Oklahoma. Experts and health care providers say that’s bad for moms and babies. Brittney Poolaw brushed away ...

A state oversight board once had the power to approve Tourism contracts, but legislation in 2018 stripped its powers. A Swadley’s Foggy Bottom Restaurant at Robbers Cave State Park near Wilburton ...

State regulators discovered strong signs of oil pollution, including high levels of salt and toxic metals, in one family’s drinking water. But for two years, they repeatedly delayed basic tests to ...

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 ...