Subject
energy production
2
energy resource
2
petroleum
2
petroleum deposit
2
petroleum exploration
2
petroleum formation
2
petroleum import
2
petroleum production
2
natural gas
1
oil
1
organic geochemistry
1
paleogeography
1
petroleum origin
1
petrology
1
pyrolysis
1
reservoir rock
1
source rock
1
steroid
1
wet gas
1