TY - RPRT TI - An Evaluation of the USGS World Petroleum Assessment 2000 - Supporting Data AU - T. R. Klett AU - Donald L. Gautier AU - Thomas S. Ahlbrandt PY - 2007 DO - 10.3133/ofr20071021 UR - https://pubs.usgs.gov/publication/ofr20071021 ID - ofr20071021 ER -