The site is written by Dr. Roger Bentley, Senior Research Fellow, Department of Cybernetics, The University of Reading, UK.

Since 1995, Dr. Bentley has been part of the University of Reading’s ‘Oil Group’, a group of physicists, engineers and petroleum geologists studying global hydrocarbon resources.

In 2001-2002, Dr. Bentley was Co-ordinator of the Oil Depletion Analysis Centre, London.

Well-founded comment on this website is appreciated. Please e-mail to:


Use of Information, and Disclaimer.

Material from this site may be published freely, but acknowledgement is requested. The views are those of the author, and not necessarily those of the data suppliers. No responsibility is accepted for use of the information provided.


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