The Choctaw Nation and the Chickasaw Nation in Oklahoma, both filed suit against that state in August 2011 over water rights.
News From Indian Country reports on the case in its Feb. 2012 edition. The leaders of both tribes issued statements this past week saying the lawsuit was necessary because the state proceeded with plans to use tribal water while ignoring the tribes. YOu can read the tribes' court complaint on line, United States District Court for the Western District of Oklahoma, case no. CIV-11-927-C.