Mealey's (June 18, 2015, 4:35 PM EDT) -- DENVER — The City of Longmont, Colo., along with environmental groups, on Sept. 10, 2014, appealed to the Colorado Court of Appeals, arguing that a lower court decision that the city’s ban on hydraulic fracturing was invalid was in error because genuine issues of material fact exist that require an evidentiary hearing (Colorado Oil and Gas Association, et al. v. City of Longmont, Colo., et al., No. 13-63, Colo. Dist., Boulder Co.)....