| Characteristic | Proved reserves in billion metric tons |
|---|---|
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
| - | - |
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Source
Source
Release date
July 2021
More information
Region
Worldwide
Survey time period
1990 to 2020
Supplementary notes
* Proved reserves of oil: generally taken to be those quantities that geological and engineering information indicates with reasonable certainty can be recovered in the future from known reservoirs under existing economic and operating conditions.
Reserves include gas condensate and natural gas liquids (NGLs) as well as crude oil.
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 and Chinese reserves based on information in the public domain. Canadian oil sands ‘under active development’ are an official estimate. Venezuelan Orinoco Belt reserves are based on the OPEC Secretariat and government announcements.
Figures for years not included in the pdf version were taken from the .
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