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Osage Nation v. Taylor, et al
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July 09, 2026
Okla. Tax Officials Say McGirt Can't Upend Osage Ruling
Oklahoma tax officials say the Osage Nation can't rely on a 2020 landmark U.S. Supreme Court ruling to overturn a decision that declined to vacate a 16-year-old determination that its reservation boundaries had been disestablished, telling the Tenth Circuit that the tribe's challenge is too late.
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May 28, 2026
Osage Nation Asks 10th Circ. To Revisit Boundary Ruling
The Osage Nation is appealing to the Tenth Circuit an Oklahoma federal judge's decision that declined to vacate a 16-year-old circuit decision saying the tribe's reservation boundaries had been disestablished, arguing that no congressional language explicitly changed those boundaries.