Their first tactic is to simply misrepresent the study. But the price of a thing does not reveal its quantity or its quality.
Prices simply measure states of mind.
This means that economists issue opinions on opinions. In other words, economists are nothing more than pollsters with an attitude. But there are quite a few substitutes for oil. Fuels come in varying qualities. For example, coal contains more energy per pound than wood, which makes coal more efficient to store and transport than wood.