Oil and natural gas

https://www.wikidata.org/wiki/Q7081382

Field Hierarchy

Parent
Biology 34.8M papers	Chemistry 28.4M papers	Engineering 23.9M papers	Organic chemistry 12.8M papers
Ecology 7.8M papers	Waste management 1.5M papers	Fossil fuel 99.4k papers
Current
Oil and natural gas 1,876 papers
Child

Trends

Notes

History