Robert M. Cluff
Obituary written by the Discovery Group Inc
Bob Cluff was a geologist and petrophysicist with nearly 40 years experience in oil and gas exploration, development, and research. His principal areas of expertise were petrophysics, petroleum geology of carbonate and clastic reservoirs, and the integration of petrophysical data with geological data in detailed reservoir studies. He worked and published extensively in the fields of non-conventional gas from both tight sandstones and shales, petrophysics, source rock analysis and basin modeling. He conducted and supervised projects in most sedimentary basins of North America as well as South America, Europe, Southeast Asia, and Austrailia.
Bob received his BS degree in Geology from the University of California at Riverside (high honors) and an MS in Geology from the University of Wisconsin at Madison. He took additional graduate and undergraduate studies in geology, physics and mathematics at the University of Illinois at Urbana-Champaign, University of Colorado at Denver, and Metropolitan State College of Denver. From 1976 to 1981 he was a geologist with the Coal and Oil and Gas Sections of the Illinois State Geological Survey, worked as an independent consulting geologist from 1982-1986, founded The Discovery Group in 1987.

Bob was very active in several professional societies including the Society for Organic Petrology, the American Association of Petroleum Geologists, Society of Petroleum Engineers, the Rocky Mountain Association of Geologists (past-President 2006), the Denver Well Logging Society (past-President), and the Society of Petrophysicists and Well Log Analysts (Vice President Technolgy; Vice President Membership, Regional Director North America).

He was a registered geologist in the states of Texas (1873), Illinois (196-000177), and Wyoming (313), and was a DPA Certified Petroleum Geologist (3168).