RMRyan McGranaghan0000-0002-9605-0007FollowUsage metrics Co-workers & collaboratorsCMChris MattmannChris MattmannDHDenise HillsDirector, Energy Investigations, Geological Survey of Alabama - Tuscaloosa, ALDenise HillsZSZiheng SunZiheng SunMCMegan CarterMegan CarterDJDave JonesDave JonesGBGary Berg-CrossGary Berg-Cross