The group's leaders insist the movement is bigger than any one lawmaker. Critics say Republican voters already delivered their verdict.

Oklahoma restricts oil field wastewater injection within a half-mile of public water wells. Regulators have let companies do ...

Keaton Shaffer has joined the staff of The Frontier this summer as an intern focused on social media and video. Shaffer is a ...

Our reporters won first-place honors in three categories for reporting on oil and gas pollution in the state and hazardous ...

We gathered cities’ confidentiality agreements with data center developers. Some require local leaders to keep secret even the fact that a nondisclosure agreement exists. Residents address the Coweta ...

A Department of Mines recommendation would allow a company to open a new mining pit over a fragile aquifer, despite concerns from residents who say the project threatens a critical water source and ...

Did Gentner Drummond donate money to Joe Biden? Did Mike Mazzei support a bill to end the Electoral College? We checked the facts. Gubernatorial candidate Mike Mazzei answers a question during a ...

Outside groups tied to dark money and wealthy donors are shaping Oklahoma’s Republican primaries with a barrage of political attacks. Many ads contain false or partially true claims. Images from ...

Century Aluminum paid a settlement and fines tied to emissions issues as it pitches a new facility near Tulsa that it says will be cleaner. One of the companies that plans to build the first new ...

Federal rules do not require Oklahoma’s U.S. Senator Markwayne Mullin to shut down his leadership PAC if he is confirmed to lead the Department of Homeland Security. The committee has spent money on ...