John Spivey is the founder of Phoenix Reservoir Engineering and Phoenix Reservoir Software, LLC. Previously, he worked as a consultant for S.A. Holditch & Associates (later acquired by Schlumberger), where he specialized in production data analysis, pressure transient analysis, and numerical reservoir simulation for low-permeability gas reservoirs. He also worked for SoftSearch, Inc./Dwights EnergyData, developing PC-based graphical decline curve analysis and petroleum economics software. Spivey has designed and developed software for well test analysis and production data analysis and taught industry short courses in well test analysis, production data analysis, and production enhancement. He has served on the faculty or adjunct faculty at Abilene Christian University, Texas A&M University, and Montana Tech. Spivey holds a BS degree in physics from Abilene Christian University, an MS degree in physics from the University of Washington, and a PhD degree in petroleum engineering from Texas A&M University. He is a co-author of two books, including the SPE textbook Pressure Transient Testing ; he also chaired the selection committees for the SPE Reprint Series volumes Gas Reservoir Engineering and Pressure Transient Testing .

John Lee is Professor of Petroleum Engineering and holder of the Cullen Distinguished University Chair at the University of Houston. Lee worked for ExxonMobil early in his career and specialized in integrated reservoir studies. He later joined the Petroleum Engineering faculty at Texas A&M and became the Regents Professor of Reservoir Engineering. While at A&M, he also served as a consultant with S.A. Holditch & Associates, where he specialized in reservoir engineering aspects of unconventional gas resources. Lee joined the University of Houston faculty in September 2011. He served as an Academic Engineering Fellow with the US Securities & Exchange Commission (SEC) in Washington during 2007-2008 and was a principal architect of the modernized SEC rules for reporting oil and gas reserves. He holds BS, MS, and PhD degrees in chemical engineering from the Georgia Institute of Technology. Lee is the author of three textbooks published by SPE and has received numerous SPE awards, including the Anthony F. Lucas Gold Medal, the DeGloyer Distinguished Service Medal, and the Honorary Membership. He is a member of the US National Academy of Engineering and the Russian Academy of Natural Sciences.