You are conflating a couple of things. Oil sands extraction is completely different from fracking. But, you did get the basic essence right in that oil sands ex

You are conflating a couple of things. Oil sands extraction is completely different from fracking. But, you did get the basic essence right in that oil sands extraction is quite dirty and expensive. Fracking is actually a reasonably cheap way to extract additional oil from more conventional wells. That happens in Alberta, also.