What's the life cycle of petroleum from undersea extraction

http://members.aol.com/profchm/Petroref.html

http://en.wikipedia.org/wiki/Petroleum#Extraction]

They could be kinda useful ^ Hopefully...

Extract crude oil, refine it (fractional distillation), sell it

I'm sure there are more in depth points somewhere around, but that's about as far as I'd go with my knowledge.. Those are basic points around which you could research anyway.. There's probs someone on here with better up-front knowledge....