Apache Corp. announced several executive changes effective Jan. 1, 2014. COO Rod Eichler is transitioning to two newly created roles: executive adviser to the chairman and CEO of liquefied natural gas projects and upstream, as well as oversight of gas monetization, and corporate health, safety, environment and emergency response. Permian Basin Region Vice President John Christmann is to become COO of North America. International Operations EVP Tom Voytovich is becoming COO of International, while Mike Bahorich, chief technology officer, also assumes responsibility for exploration and production technology. Argentina Region Vice President Michael Bose would take over the Permian Region, while David Chi, manager of Argentina production, would become interim region vice president. Rob Johnston is to become vice president of the Central Region.