Christopher D. Laughrey is a Senior Geosciences Advisor with Weatherford Laboratories in Golden, Colorado, USA. He has 33 years of global experience in reservoir petrology, basin analysis, and both isotope and petroleum geochemistry. Before joining Weatherford, Christopher was a Senior Geological Scientist for the Pennsylvania Geological Survey where he conducted applied research in tight-gas sands, fractured carbonate reservoirs, sequence stratigraphy, shale petrology, and petroleum geochemistry of the Marcellus and Utica shales throughout the Appalachian basin. He conducted professional workshops in shale petrology/petroleum geochemistry, sequence stratigraphy, and carbonate reservoirs for the Petroleum Technology Transfer Council, SPE, and PetroChina. Mr. Laughrey has published 40 peer-reviewed papers.