A respected individual on another site mentioned this and i googled it and read some interesting stuff. I never thought dinosaurs were the cause of oil. Google abiotic oil, thomas gold had some good theoris.
I first read about abiotic oil - the idea of oil just beign a mineral - from the answers in genesis website (specifically the technical journal). However, I think it is just as vialble that oil came from past life forms (not just dinosaurs)...in fact, I think if oil is biotic in origin, it is most likely made up of plant matter.. Dinosaurs would have been a minor fraction of all carbon based life on earth. Weighed against plant life, all animals combined are but a spec.... I'd guess... so, oil - if biotic in origin - is probably mostly plant matter.
Look up one of Robert Genry's videos on origin of coal..strata... and the age of the earth. It's quite interesting.