Court Walks Back Prior Decision Holding Osage Nation Lease and Drilling Permits Void Ab Initio In a case previously discussed in Vol. XXXIII, No. 1 (2016) of this Newsletter, the U.S. District Court for the Northern District of Oklahoma modified its prior decision holding an Osage Nation lease and related drilling permits void ab initio, or invalid from inception. See Hayes v. Chaparral Energy, LLC, No. 4:14-cv-00495,2016 WL 1254427 (N.D. Okla. Mar. 29,2016), amending andsuperseding No. 4:14-cv-00495, 2016 WL 54212 (N.D. Okla. Jan. 5,2016).
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