Mealey's (October 17, 2016, 10:15 AM EDT) -- OKLAHOMA CITY — Halliburton Energy Services Inc. (HESI) on Oct. 10 filed an answer to a complaint brought by a group of Oklahoma residents who allege that the company is liable for groundwater contamination, arguing that the plaintiffs fail to identify any property or individuals who have been injured by the alleged presence of perchlorate in the aquifer that supplies their drinking water (Albin Family Revocable Living Trust, et al. v. Halliburton Energy Services Inc., No. 16-910, W.D. Okla.)....