Here is the complaint, currently captioned Kialegee Tribal Town v. Bernhardt (D.D.C.):
Prior case, dismissed for lack of ripeness, here.
Links: Tulsa World coverage
Download(PDF) complaint in the matter of Kialegee Tribal Town v. Zinke et al, 17-cv-01670 (D.C. Circuit August 17, 2017): Doc. 1 – Complaint for Declaratory and Injunctive Relief