(March 1, 2018, 1:37 PM EST) -- OKLAHOMA CITY — Two men who contend that they were injured when a lithium battery exploded while they were working on a hydraulic fracturing rig on Feb. 28 filed an appeal brief in the 10th Circuit U.S. Court of Appeals, arguing that the lower court erred when it ruled that as a matter of law, the defendants owed no duty of care to plaintiffs (Jacob McGehee, et al. v. Forest Oil Corp., et al., No. 17-6238, 10th Cir.)....