Petroleum Notes

* The category Crude Oil includes crude oil, non-conventional oils, and natural gas liquids.
The category Petroleum Products includes refinery gas, ethane, liquefied petroleum gases, motor gasoline, aviation gasoline, gasoline type jet fuel, kerosene type jet fuel, other kerosene, gas/diesel oil, heavy fuel oil, naptha, white spirit and SBP, lubricants, bitumen, paraffin waxes, petroleum coke, and other petroleum products.

2. Note on Reserves: This quantity varies with each survey of world petroleum reserves. The PTR database lists the average of three recent figures for each nation, each produced independently by the BP Statistical Review of World Energy (data for Dec 31, 2003), the Oil and Gas Journal (Jan 01, 2004), and the World Oil Annual Report (Dec 31, 2003). In all cases the mean of these three figures represents a reasonable compromise between slightly-varying estimates, except in the case of Canada: The Oil and Gas Journal books quantities estimated to lie in the tar sand deposits of Alberta; BP and World Oil do not. As the current price of oil sustains production in this region, these reserves are listed here. [Download Excel (*.xls) file containing all independent reserves estimates] (Source: US EIA)

3. The commonly used Reserves / Production Ratio can be interpreted as: the length of time (years) until currently discovered oil reserves will be exhausted, assuming the current consumption rate is maintained.