fossil oil

Yet, as Bell notes, "Long before we built offshore rigs for fossil oil and gas, we mined our seas for whales."

Chip fat and other oils are considered waste, so when they are used to make biodiesel it saves carbon emissions by displacing fossil oil.

But all fossil oil is probably of vegetable or animal origin, from masses of vegetables or animals long buried in the earth.

After all, storage is a high-value proposition that has made fossil oil, originally derived from plants, so valuable—cheap, energy dense, easy to transport and storable for later use.

On distillation with volatile alcaly all these fossil oils are shewn to contain the acid of amber, which evinces the identity of their origin.