C.S. Matthews was also honored by the Society of Petroleum Engineers as: the recipient of the 1982 Lester C. Uren award for distinguished achievement in the technology of petroleum engineering, a SPE Distinguished Member, a Distinguished Lecturer, a Distinguished Lecturer Emeritus, and a Distinguished Author. He served on many committees and consulting bodies, including: The Department of Energy (DOE)-Fossil Energy Board; Consultant to the DOE; National Petroleum Council (NPC)-Special Assistant on major studies of Enhanced Oil Recovery (EOR) and Unconventional Gas; American Petroleum Institute (API)-Chairman, Reserves Advisory Committee; Interstate Oil Compact Commission (IOCC)-Advisory Committee Tar Sands and Heavy Oil Deposits; Rice University-Engineering Advisory Council; and Chairman, Texas Engineers for Conservation. In 1985, he was elected to the National Academy of Engineering 'For distinguished contributions to Petroleum Engineering Technology and to development of public. Matthews was Senior Petroleum Engineering Consultant for Shell Oil Company, and an internationally recognized Reservoir Engineer.

Co-author: D.G. Russell - Shell