"The Peak Oil debate is not a sporting event. What matters is not which side wins, but what reality awaits us. Will we see a continuing plateau in global crude oil production? How long will it last? How big a proportional contribution to total liquids production will we see from tar sands, shale, and other unconventionals? What will be the climate impact as the world’s petroleum supply is increasingly derived from lower-grade resources? And what will be the economic impact?" (Source: Energy Bulletin)
Richard Heinberg provides a very convincing debunking of the peak oil debunkers.