Get yourself a Chevy Volt; this isn’t going away.
The simple truth of the matter is this: most of the world’s easy reserves have already been depleted — except for those in war-torn countries like Iraq. Virtually all of the oil that’s left is contained in harder-to-reach, tougher reserves. These include deep-offshore oil, Arctic oil, and shale oil, along with Canadian “oil sands” — which are not composed of oil at all, but of mud, sand, and tar-like bitumen. So-called unconventional reserves of these types can be exploited, but often at a staggering price, not just in dollars but also in damage to the environment.
In the oil business, this reality was first acknowledged by the chairman and CEO of Chevron, David O’Reilly, in a 2005 letter published in many American newspapers. “One thing is clear,” he wrote, “the era of easy oil is over.” Not only were many existing oil fields in decline, he noted, but “new energy discoveries are mainly occurring in places where resources are difficult to extract, physically, economically, and even politically.”
Further evidence for this shift was provided by the International Energy Agency (IEA) in a 2010 review of world oil prospects. In preparation for its report, the agency examined historic yields at the world’s largest producing fields — the “easy oil” on which the world still relies for the overwhelming bulk of its energy. The results were astonishing: those fields were expected to lose three-quarters of their productive capacity over the next 25 years, eliminating 52 million barrels per day from the world’s oil supplies, or about 75% of current world crude oil output. The implications were staggering: either find new oil to replace those 52 million barrels or the Age of Petroleum will soon draw to a close and the world economy would collapse.