In one northern Oklahoma county, oil and wind don’t mix.

That’s where plans by St. Louisan Tom Carnahan’s Wind Capital Group LLC for a large wind farm have run into a roadblock — claims by the Osage Nation that it would interfere with the tribe’s rights to tap oil and gas deposits.

The 15,600-member tribe sued Wind Capital in federal court in October to block the project, which would consist of 94 turbines spread across 15 square miles in Osage County, just northwest of Pawhuska. Power would supply Springfield (Mo.)-based Associated Electric Cooperative Inc., which provides power to regional and local electric cooperative systems in Missouri, Iowa and Oklahoma.