Is Depletion Likely to Create Significant Scarcities of Future Petroleum Resources?

Some energy analysts are concerned that the world will soon face a global crisis due to dwindling petroleum resources and a peak in oil production. To shed light on the subject, we have assessed the threat that depletion poses to the availability of petroleum resources by estimating cumulative availability curves for conventional petroleum (oil, gas, and natural gas liquids) and for three unconventional sources of liquids (heavy oil, oil sands, and oil shale). Our analysis extends the important study conducted by the US Geological Survey (World petroleum assessment. CD-ROM. U.S. Geological Survey, Reston, 2000) on this topic by taking account of (1) conventional petroleum resources from provinces not assessed by the Survey or other organizations, (2) future reserve growth, (3) unconventional sources of liquids, and (4) production costs. The results indicate that large quantities of conventional and unconventional petroleum resources are available and can be produced at costs ­substantially below current market prices. These findings suggest that petroleum resources are likely to last far longer than many are now predicting and that depletion need not drive market prices above the relatively high levels prevailing over the past several years