Alan S. Kornacki is a Weatherford Laboratories geochemistry consultant. He retired from Royal Dutch Shell in 2010, after working 26 years on developing, implementing, and integra-ting geochemistry and fluid property technology on a wide range of conventional and unconven-tional oil and gas projects. Alan received his B.S. (Geol.) from the University of Missouri-Rolla in 1974, and his Ph.D. (Geol.) from Harvard University in 1984. Alan is a member of AAPG and GSA. He received the Frank Kottlowski Memorial Award from the EMD for the Best Paper presented at the 2010 AAPG meeting.