Definitions and Petroleum Reserves and Resources

WPC Original work from 1987 (originally presented at the 12th WPC in Houston)

WPC Summary of Definitions 1987 (pdf)

WPC Classification - 1987 (pdf)

WPC Discussion from 1987 (pdf)

WPC/SPE/AAPG Petroleum Reserves and Resources Definitions, 2004

Background to the definitions (html)

Petroleum Reserves Definitions (html)

Petroleum Resources Classification System and Definitions (html)

Auditing Standards for Reserves (html)

The above documents are in html. To download MS Word versions please click on the relevant topic below:

Background to the definitions (word)
Petroleum Reserves Definitions (word)
Petroleum Resources Classification System and Definitions (word)
Auditing Standards for Reserves (word)

Quick overview figure in PowerPoint

Final Version of the UNFC Minerals and Resources Document, 2004

From here you can download (approx 1.8 mb Word Document) the Final Version of UNFC for Energy and Mineral Resources .

In the Agenda of the forthcoming Ad Hoc Group Meeting of the UNECE secretariat, they are going to include an item to consider case studies, both on individual deposits and
country`s case studies showing how a national classification may be adapted to the UNFC principles; and what kind of dificulties are being faced in this attempt. For this purpose,  they are looking for volunteers (companies/ public) who might be interested in, to present it, during the next meeting, to be held in Geneva, on 17 and 18 November, 2004.  This also
is in the spirit of the recommendations of the recent Joint ESCWA/UNSD/OPEC/ECE/ Regional Seminar, held in Beirut, in early JUne 2004.