TY  - RPRT
TI  - Supporting data for the U.S. Geological Survey 2012 world assessment of undiscovered oil and gas resources
AU  - USGS World Conventional Resources Assessment Team
PY  - 2013
DO  - 10.3133/ds69ff
UR  - https://pubs.usgs.gov/publication/ds69FF
ID  - ds69FF
ER  -