CommanderSock CommanderSock:
We just have to keep digging.
Good luck with that.
$1:
The world is using up its reserves of conventional crude oil at a prodigious rate. Ninety percent of the oil produced today comes from fields more than 20 years old, and 70 percent from fields more that 30 years old. (1)
At the same time, despite exceptional advances in petroleum geology and the technologies employed in the search for petroleum deposits, discovery rates of new oil reserves are falling — for every four barrels used today, only one new barrel is found.
Thus, the lines of cumulative production and remaining reserves will inevitably cross — the question is not if but when...
Factor 2 - Additional Oil Discoveries: The earth has now been so extensively explored for petroleum that virtually all its prolific producing trends have been identified. Figure 1, which displays the amount of oil discovered per decade, shows discoveries peaked during the 1960s, verifying the advanced state of worldwide exploration.
http://www.petroleumequities.com/OilSupplyReport.htm