He might be being a dick to you, but in this case he's right. The long read I posted above is extremely informative. Worse, there isn't a limitless supply of fossil fuel sourced gas any more than there is for oil. To give you an idea of how much of a desperation play the tar sands really are, consider the fact that for every barrel of oil shipped out of Alberta, at least 19 more barrels' worth were burned. That is among the highest energy production multiples in the history of the industry, which in fact is itself terminally plagued with rising costs of production. Every barrel requires a larger and larger percentage of itself to be used in its production, leaving ever less for the global industrialized world.