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Distribution of proved oil reserves - 1988/1998/2008
These pie charts show the % distribution of world proved oil reserves according to geographic region for the years 1988, 1998 and 2008.

Image with a graph of Distribution of proved oil reserves - 1988/1998/2008
Distribution of proved oil reserves - 1988/1998/2008
  Units 1988 1998 2008
Oil: Proved reserves [1,2] - Thousand million barrels (from 1980) % of total ('000 million barrels)      
Total North America - Proved oil reserves % of total ('000 million barrels) 10.0 6.1 5.6
Total S. & Cent. America - Proved oil reserves % of total ('000 million barrels) 6.9 8.9 9.8
Total Europe & Eurasia - Proved oil reserves % of total ('000 million barrels) 7.7 9.8 11.3
Total Middle East - Proved oil reserves % of total ('000 million barrels) 65.4 64.0 59.9
Total Africa - Proved oil reserves % of total ('000 million barrels) 5.9 7.2 10.0
Total Asia Pacific - Proved oil reserves % of total ('000 million barrels) 4.0 3.9 3.3

(1) Proved reserves are generally taken to be those quantities that geological and engineering information indicates with reasonable certainty can be recovered in the future from known reservoirs/deposits under existing economic and operating conditions.
(2) Source of data - The estimates in this table have been compiled using a combination of primary official sources, third-party data from the OPEC Secretariat, World Oil, Oil & Gas Journal and an independent estimate of Russian reserves based on information in the public domain. Canadian proved reserves include an official estimate of 22.0 billion barrels for oil sands 'under active development'. Reserves include gas condensate and natural gas liquids (NGLs) as well as crude oil.


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