The approximate estimation of the amount of crude oil that is located in specific regions - typically those such as Kuwait or Saudi Arabia that are considered to be world leaders with regard to oil reserves. These oil reserves are required to have the potential of being extracted by using particular methods.

Related information about oil reserves:

1. Oil reserves - Wikipedia, the free encyclopedia
   The ratio of producible oil reserves to total oil in place for a given field is often referred to as the recovery factor. Recovery factors vary greatly among oil fields.
    
2. List of countries by proven oil reserves - Wikipedia, the free ...
   This a list of countries by proven oil reserves. Proved reserves are those quantities of petroleum which, by analysis of geological and engineering data, can be ...
    
3. Oil reserves in the United States - Wikipedia, the free encyclopedia
   Proven oil reserves in the United States are 21 billion barrels (3.3×10^9 m3), excluding the Strategic Petroleum Reserve. The Institute for Energy Research ...
    
4. Country Comparison :: Oil - proved reserves - CIA - The World ...
   This entry is the stock of proved reserves of crude oil in barrels (bbl). Proved reserves are those quantities of petroleum which, by analysis of geological and ...
    
5. Oil reserves statistics - countries compared - NationMaster
   Comparison of countries (Oil reserves). Most recent figures. NationMaster allows you to compare countries on almost anything at all.
    
6. The World's Biggest Oil Reserves - Forbes.com
   Jan 21, 2010 ... Chances are your energy needs are going to flow from one of these 10 fields in the future.
    
7. U.S. Crude Oil, Natural Gas, and Natural Gas Liquids Proved - EIA
   Aug 1, 2012 ... Total discoveries added 2,059 million barrels to U.S. oil reserves in 2010, ... The net change to U.S. proved oil reserves associated with buying ...
    
8. Proven oil reserves are not a measure of future supply of world ...
   Does the Middle East have the largest oil reserves in the world? This page presents a critical perspective on world oil reserve information.