Shale reserves, estimated at more than two trillion barrels in the U.S., are a potential source of oil that now may be economically unlocked thanks to technology developed by Raytheon Company and its partner, CF Technologies. Raytheon's Integrated Defense Systems (IDS) business' radio frequency (RF) energy combined with critical fluid (CF) technology shows promise for efficiently extracting oil from shale. "Raytheon is an expert in RF technology," said Lee Silvestre, director of Mission Innovation at Raytheon IDS. "What makes this effort a breakthrough is that similar RF technology that we have been applying in core defense products -- radars for...