http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
2013, natural gas & petroleum : basins, facilities & infrastructure
Central Rockies basins, facilities & infrastructure
"Data sources: Energy Industry GIS data, PennWell MAPSearch."
Includes color advertisements on surrounding borders.
Accompanies: Oil & gas journal, volume 111, number 3, March 3, 2013.
"Supplement to PennWell Co. Publications."