Access to American Association of Petroleum Geologists publications, including AAPG Bulletin, AAPG Special Volumes, Journal of Petroleum Geology, Petroleum Abstracts Discovery file, as well as publications by several regional groups. Includes access to the GIS-UDRIL (GIS Upstream Digital Reference Information Library) database of projects in GIS formats. Note: Petroleum Abstracts is ceasing operations and access will end on December 31, 2024.