information about Petroleum industry field
Field Hierarchy
Parent | |||
---|---|---|---|
Biology 21M papers | Engineering 10.4M papers | Environmental science 6.5M papers | Geology 5.4M papers |
Paleontology 2.3M papers | Environmental engineering 513k papers | ||
Current | |||
Petroleum industry 35k papers | |||
Child | |||
Natural gas industry 1,619 papers | Midstream 1,005 papers |
Trends
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History