As the Laboratory Director and Manager of Battelle's Analytical Chemistry Services group, Jon Thorn oversees laboratory operations to ensure that our oil & gas clients get the highest quality data using the most up-to-date analytical techniques. Under his leadership, the Battelle ACS group is working to advance the science of petroleum forensics, trace level organic contaminants, and other specialty analytical services of interest to the oil & gas community. Jon got hooked on petroleum chemistry when he started career with Battelle as an undergraduate laboratory assistant in 1995. Since then, he has devoted his career to the science of environmental chemistry and analysis, with a special interest in hydrocarbon forensics. His experience in his 18 years with Battelle has included extraction and analysis of environmental samples for pesticides, PCBs, saturated hydrocarbons, PAHs, and petroleum biomarkers. Currently, he is most excited about recent work the team has done that combines metagenomics with petroleum chemistry. These studies combine the biology (what microorganisms are active at given point in time) with the chemistry (what hydrocarbons are available at a given time) to better understand what types of microorganisms “eat” different kinds of hydrocarbons.