(August 12, 2015, 11:26 AM EDT) -- OKLAHOMA CITY — The federal judge in Oklahoma presiding over a group of consolidated lawsuits brought by residents who contend that Halliburton Energy Services Inc. (HESI) is liable for personal injuries as a result of the company's release of radioactive materials into the environment ruled that HESI’s expert testimony was admissible on Aug. 10 (Amanda Alexander v. Halliburton Energy Services Inc., No. CIV-11-1343, [consolidated], W.D. Okla.; 2015 U.S. Dist. LEXIS 105304)....