In theory, and it is a theory backed by some high-powered research, shares in Australian oil and gas companies such as Woodside Petroleum and Santos have much further to fall, a fact which prompts a question: why haven’t they already fallen further?

In theory, and it is a theory backed by some high-powered research, shares in Australian oil and gas companies such as Woodside Petroleum and Santos have much further to fall, a fact which prompts a question: why haven’t they already fallen further?