(March 26, 2020, 12:10 PM EDT) -- PITTSBURGH — Leaseholders on March 25 filed a purported class action against a hydraulic fracturing company in Pennsylvania federal court, contending that it had breached it contracts with them by failing to pay the appropriate amount of royalties for gas it extracted from fracking wells (Douglas Kriley, et al. v. XTO Energy Inc., No. 20-416, W.D. Pa.)....