Oil - proved reserves: 15 million bbl (1 January 2017 es)
Definition: 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 engineering data, can be estimated with a high degree of confidence to be commercially recoverable from a given date forward, from known reservoirs and under current economic conditions.
Source: CIA World Factbook - This page was last updated on January 20, 2018
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