I did a search for "Ronald Bailey" and didn't find this article already posted:
http://www.reason.com/0605/fe.rb.peak.shtml
The Tank Is Still More Than Half Full
So who’s right? Fortunately, it looks like humanity is at least a generation away from peak oil production. Unfortunately, there could be another “oil crisis” any day now.
The world consumes about 87 million barrels of oil per day, or nearly 30 billion barrels of oil per year. How much oil is left? It’s hard to be sure. Proven oil reserves—i.e., oil that is recoverable under current economic and operating conditions—are estimated to be 1.1 trillion barrels by the industry journal World Oil, 1.2 trillion by the oil company BP, and 1.3 trillion by the Oil and Gas Journal. In March 2005 the private U.K.-based energy consultancy IHS Energy estimated that the world’s remaining recoverable reserves, excluding unconventional sources such as heavy oil or tar sands, are between 1.3 trillion and 2.4 trillion barrels.
But are proven reserves all that’s left? Several analyses put ultimate reserves at much higher levels. For example, the USGS undertook a comprehensive analysis of world oil reserves in 2000. It calculated that the total world endowment of recoverable oil is 3 trillion barrels. (Its figure is higher because it includes estimates for undiscovered resources and projected increases in already producing fields.) In addition, the total world endowment of natural gas is equivalent to 2.6 trillion barrels of oil, plus 330 billion barrels of natural gas liquids such as propane and butane. The USGS figures that the total world endowment of conventional oil resources is equivalent to about 5.9 trillion barrels of oil. Proven reserves of oil, gas, and natural gas liquids are equivalent to 2 trillion barrels of oil. The USGS calculates that humanity has already consumed about 1 trillion barrels of oil equivalent, which means 82 percent of the world’s endowment of oil and gas resources remains to be used.
In its 2005 Energy Outlook, ExxonMobil estimates “global conventional oil resources total 3.2 trillion barrels…with non-conventional ‘frontier’ resources such as heavy oil bringing that total to over 4 trillion barrels.” In November 2005, the International Energy Agency, an organization created in 1974 by 26 industrialized countries to assess global energy issues, released its annual World Energy Outlook report, which accepted the USGS numbers and concluded that “the world’s energy resources are adequate to meet projected growth in energy demand” until at least 2030. The report predicted that oil production would grow from the 2004 level of 82 million barrels a day to 115 million barrels a day and that any “peak” would occur after 2030. It suggested that world oil prices will decline to around $35 per barrel (in 2004 dollars) by 2010 and eventually rise to $39 per barrel by 2030. At the Montreal Climate Change Conference in December, Claude Mandil, head of the International Energy Agency, declared: “We don’t share the tenets of the peak oil theory. We feel that they underestimate technological developments. For many decades to come there is no geological problem.”