The branch of economic geology that deals with the occurrence and exploitation of oil and gas fields WordNet 3.0 & Open English WordNet

Petroleum geology is the study of origin, occurrence, movement, accumulation, and exploration of hydrocarbon fuels. Wikipedia

Study of the origin, occurrence, movement, accumulation, and exploration of hydrocarbon fuels Wikidata

The branch of economic geology that relates to the origin, migration and accumulation of oil and gas, and to the discovery of commercial deposits. Its practice involves the application of geochemistry, geophysics, paleontology, structural geology and stratigraphy to the problems of finding hydrocarbons. OmegaWiki