Mealey's (June 18, 2015, 3:04 PM EDT) -- BROOMFIELD, Colo. — The Colorado Oil & Gas Association (COGA) on Nov. 24, 2014, filed a lawsuit in state court contending that the City of Broomfield’s ban on hydraulic fracturing violates the law that grants the State of Colorado the exclusive right to regulate oil and gas operations in the state (Colorado Oil & Gas Association v. City and County of Broomfield, Colo., No. N/A, Colo. Dist., Broomfield Co.)....