(December 31, 2018, 12:12 PM EST) -- OKLAHOMA CITY — An energy company sued a hydraulic fracturing operator in Oklahoma federal court on Dec. 5, contending that it breached a business agreement between the parties because the company has the right to not participate in paying the costs of drilling fracking wells (Leeman Energy Corporation v. Oil Producers Inc. of Kansas, No. 18-1181, W.D. Okla.)....