Petroleum exploration

https://www.wikidata.org/wiki/Q3241434

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Parent
Biology 36.7M papers	Chemistry 29.4M papers	Organic chemistry 13.1M papers	Geology 10.6M papers
Paleontology 5.6M papers	Geomorphology 992k papers	Structural basin 628k papers	Petroleum 100k papers
Current
Petroleum exploration 5,479 papers
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History