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In a groundbreaking decision, the North Dakota Supreme Court ruled in favor of the Mandan, Hidatsa, and Arikara Nation (MHA Nation) in a dispute over land rights on Tuesday, May 17, 2026. The court's decision marked a significant victory for the tribe, which has been fighting for recognition of its land rights for decades.The case at the center of the ruling dates back to 2018 when the MHA Nation filed a lawsuit against the state of North Dakota and oil companies operating in the region. The tribe argued that its rights to mineral royalties on land within the Fort Berthold Indian Reservation were being violated by unauthorized drilling and extraction activities. The state and oil companies countered that the tribe did not have exclusive rights to the minerals in question.After years of legal battles and negotiations, the case finally made its way to the North Dakota Supreme Court, where justices unanimously sided with the MHA Nation. In its ruling, the court affirmed that the tribe's rights to mineral royalties on the reservation were indeed exclusive and that the state and oil companies were in violation of those rights.The decision was met with celebration and relief by tribal leaders and members, who have long argued that their land rights have been disregarded and exploited by outside parties. Chairman Mark Fox of the MHA Nation praised the court's ruling as a "historic victory for tribal sovereignty and self-determination."The ruling is expected to have far-reaching implications for the MHA Nation and other Native American tribes in North Dakota and beyond. It sets a precedent for the protection of tribal land rights and could impact how similar disputes are resolved in the future.The state of North Dakota and the oil companies involved in the case have not yet publicly commented on the court's decision. It remains to be seen how they will respond to the ruling and what steps they will take moving forward.Overall, the North Dakota Supreme Court's decision in favor of the MHA Nation represents a significant milestone in the ongoing struggle for Native American land rights and sovereignty. It serves as a reminder of the importance of upholding and respecting the rights of indigenous peoples in the United States.