information about Petroleum field

Field Hierarchy
Parent
Chemistry
21.9M papers
Biology
21M papers
Geology
5.4M papers
Paleontology
2.3M papers
Current
Petroleum
88.5k papers
Child
Energy source
9,812 papers
Shale oil
5,747 papers
Petroleum product
5,375 papers
Oil reserves
2,903 papers
Petroleum geology
2,549 papers
Oil in place
2,395 papers
Well stimulation
2,303 papers
Trends