(October 12, 2015, 11:08 AM EDT) -- DENVER — The Southern Ute Indian Tribe and the U.S. Department of the Interior (DOI) on Oct. 9 filed a joint motion in Colorado federal court staying a lawsuit the tribe brought to contest the final rule the DOI seeks to implement regarding use of hydraulic fracturing techniques in oil and gas development on tribal lands (Southern Ute Indian Tribe v. U.S. Department of Interior, et al., No. 15-1303, D. Colo.)....