U. S. Crude Oil supplies Because oil has been, is now, and will be for an indeterminate future a major resource, the amount of U. S. crude oil supplies is critical to many social and political issues and their resolutions. Oil not only is an energy source but also influences world currency, in particular the U.S. dollar which is the currency for buying and selling oil. Important data of U. S. crude oil supplies for the years 1999-2007 are provided here. |