Here is the order in McKesson Corp. v. Hembree (N.D. Okla.):
Oklahoma is among the states with the highest number of opioid prescriptions per one hundred people and has a high overdose death rate. Tribal communities have been tragically affected, as have other communities in Oklahoma. Numerous cities, counties and states throughout the country, including the state of Oklahoma, have filed lawsuits against various opioid manufactures, pharmaceutical distributors, and other businesses allegedly responsible for the proliferation of opioid drugs. This proceeding concerns a lawsuit by the Cherokee Nation against a number of opioid distributors and pharmacies. However, the question before the Court is not the merits of the Cherokee Nation’s lawsuit but rather the boundaries of tribal court jurisdiction. The Attorney General of the Cherokee Nation has filed suit not in state court but in the tribal district court of the Cherokee Nation. Do the tribal courts of the Cherokee Nation have jurisdiction over this particular action? The Court finds they do not.