The Reserves Definitions Committee (RDC)

The Reserves Definitions Committee (RDC)

Rod Sidle,  Chair
Dave Elliott
John Etherington
Martin Hubbig
Russ Long
John Ritter
Rawdon Seager
Tim Smith

What's New

November 6, 2018 - The 2018 PRMS version 1.01 is now available from the Society of Petroleum Engineers website. This corrects certain errata in the original version. To obtain your updated copy, click the link below.

2018 PRMS

Available for download for personal and academic work.  For commercial use, please note: The document is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. If you have questions about the use of the PRMS for commercial or derivative use, please contact

Key Changes from the Petroleum Resources Management System (PRMS 2007) to the PRMS 2018 

Reserves Definitions      

1997 SPE/WPC Petroleum Reserves Definitions (Replaced by PRMS)
2000 SPE/WPC/AAPG Petroleum Resource Definitions (Replaced by PRMS) 
2007 Update of 2001 Standards Document 
2007 SPE/WPC/AAPG/SPEE Petroleum Resources Management System (PRMS) 
2011 Guidelines for Application of Petroleum Resources Management System