( December 4, 2024, 1:34 PM EST) -- PITTSBURGH — A hydraulic fracturing operator on Dec. 3 filed a reply brief in Pennsylvania federal court arguing that a putative class of residents who argue that their water supply has been contaminated by fracking waste fluid “persist in their effort to conceal” data related to the report of one of their experts. The fracking operator says the residents should produce the complete data or be prevented from using the expert that relies on that data....