country cumulative reserves* undiscovered total oil

production* resources* endowment*

Saudi Arabia 71.5 261.2 41.0 373.7

United States 165.8 50.7 49.0 265.5

Russia 92.6 100.0 68.0 260.6

Iraq 22.8 100.0 45.0 167.8

Iran 42.9 93.0 22.0 157.9

Venezuela 47.3 83.3 17.0 147.6

Kuwait 27.6 97.5 3.0 128.1

United Arab Emirates 15.1 98.2 7.0 120.3

Mexico 20.5 50.4 37.0 107.9

China 18.8 24.0 48.0 90.8

Canada 16.1 5.1 33.0 54.2

Libya 19.0 22.8 8.0 49.8

Kazakhstan 3.2 17.3 26.0 46.5

Nigeria 15.5 17.9 9.0 42.4

Indonesia 15.2 5.8 10.0 31.0

Norway 6.3 11.3 13.0 30.6

United Kingdom 12.3 4.6 11.0 27.9

Algeria 9.1 9.2 2.0 20.3

Totals 621.6 1,052.3 449.0 2,122.9

*In billion barrels; figures adapted from Oil & Gas Journal and U.S. Geological

Survey.