Lady Ruby,
It's also useful to read the critique of the IEA forecasts (and EIA and others) posted
here.
The IEA does not forecast a "peak year". Doing so would be political untenable, since their member countries certainly don't want their markets to get spooked. Every 2 years, they publish the "World Energy Outlook", the latest being 2004. In it, they forecast production rising to 121 mmbd by 2030.
If you read the details, the forecast is actually conditioned on an enormous amount of investment taking place before then ($16 trillion for all energy; $3 trillion for oil & gas, of which a half-trillion in the Middle East alone), or double the annual rate of O&G investment in the 1990s. Of course, as economists, they figure more investment will naturally result in more supply, but nonetheless, I don't think it's fair to use IEA's forecasts without acknowledging such conditions. EIA doesn't even go that far--they are simply out in left-field.
I got into an argument recently with a friend who works at IEA about this, and it's obvious that they are savvier about the situation than they can acknowledge (witness the "How to Save Oil in a Hurry" publication earlier this year). But their hands are tied to actually predict a peak year.
You can find the executive summary of the World Energy Outlook 2004
here.