SCRANTON, Pa. - Natural gas extraction companies sued in the U.S. District Court for the Middle District of Pennsylvania for allegedly underpaying natural gas royalties, contaminating groundwater and violating the terms of a mineral lease were denied a motion March 26 to strike supplement reports and affidavits of experts designated by the plaintiffs to offer opinions with respect to natural gas extraction, natural gas royalties and the effects of hydraulic fracturing on groundwater (Nolan Scott Ely, et al. v. Cabot Oil & Gas Corporation, et al., No. 09-2284, M.D. Pa.; 2014 U.S. Dist. LEXIS 40930; See 8/20/13, Page 34).