Mealey's (June 16, 2015, 2:28 PM EDT) -- WILLIAMSPORT, Pa. — Natural gas extraction companies accused of contaminating water wells in northern Pennsylvania filed a reply April 8 in support of a case management order requiring the plaintiffs in a lawsuit removed Jan. 28, 2014, to the U.S. District Court for the Middle District of Pennsylvania to make a prima facie case for their claims before the beginning of discovery; the plaintiffs responded March 25, 2014, to the motion filed March 12 (Sheila Russell, et al. v. Chesapeake Appalachia, et al., No. 14-148, M.D....