G. Paul Willhite is the Ross H. Forney Distinguished Professor of Chemical and Petroleum Engineering at the University of Kansas (KU) where he has been a member of the faculty since 1969. Before joining the faculty, he worked in the Production Research Division of Continental Oil Company. Willhite holds a B.S. degree from Iowa State University and a PhD degree from Northwestern University both in chemical engineering. At KU, he co-founded TORP with Professor Don W. Green, serving as co-director from 1974-2009. He was chair of the department from 1988-1996, interim chair from 2003-2004. He is the author of the SPE textbook, Waterflooding. Willhite received several SPE Awards including the Lester C. Uren Award, John Franklin Carll Award, IOR Pioneer Award and was elected an Honorary Member of SPE-AIME in 2012. Willhite was elected to the National Academy of Engineering in 2006. Don W. Green is Emeritus Distinguished Professor of Chemical and Petroleum Engineering at The University of Kansas (KU). He holds a B.S. in petroleum engineering from the University of Tulsa, and M.S. and PhD degrees in chemical engineering from the University of Oklahoma. He worked for Continental Oil Company before joining KU in 1964. At KU he was chair of his department from 1970-1974 and 1996-2000. He was co-director of the Tertiary Oil Recovery Project (TORP) with Professor G. Paul Willhite from 1974 to 2007. Dr. Green has won numerous teaching awards at KU, including the Chancellor's Club Career Teaching Award. He was an SPE Distinguished Lecturer, recipient of the SPE Distinguished Achievement Award for Petroleum Engineering Faculty, the Improved Oil Recovery (IOR) Pioneer Award and was named an Honorary Member of SPE in 2007. He is also a Fellow of the AIChE.