How many types of oil are there?

Related questions

1. What are the main uses of oil today?
2. Can we make petrol?
3. Is oil the same as petroleum?
4. Who found oil?
5. Can we make oil?
6. Does the US still import oil?
7. How long will the oil last?
8. What oil is used for?
9. What causes oil prices to rise?
10. Why is oil so expensive?

Tags

1. #crude
2. #within
3. #these
4. #types
5. #petroleum
6. #levels
7. #kerosene
8. #ether
9. #evaporates
10. #evaporating
11. #volatile
12. #light
13. #include
14. #naphtha
15. #which
16. #gasoline
17. #spirit
18. #their
19. #toxicity