Difference between crude oil, petroleum products, and petroleum

[vn0306]

Hi everybody.
I am a new member.I do not know anything about oil or something like that.What is the difference between crude oil, petroleum products, and petroleum? Can you help me explain?

[Cecile_P]

Hi, here is a link to another post where I have attached a link to a book that might help.

[link Point to another website Only the registered members can access]

[Cecile_P]

Hi, here is a link to another post where I have attached a link to a book that might help.

[link Point to another website Only the registered members can access]

[mutrosa]

Thanks