Crude oil

https://www.wikidata.org/wiki/Q22656

Field Hierarchy

Parent
Engineering 23.9M papers	Geology 9.1M papers	Petroleum engineering 466k papers
Current
Crude oil 26.2k papers
Child
Midstream 1,780 papers	Demulsifier 1,547 papers	West Texas Intermediate 1,336 papers	API gravity 985 papers
Oil-storage trade 910 papers	Brent Crude 887 papers	Crack spread 841 papers

Trends

Notes

History