Global Top 20 Integrated Oil and Gas Companies Benchmarking Analysis

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Proved Oil & Gas Reserves of the Global Top 20 Integrated Oil and Gas Companies decreased in 2008, down from 147.2 billion barrels of oil equivalent (boe) in 2007 to 145.2 billion boe in 2008. The decline in the total oil and gas reserves was driven by the decline in the oil reserves, proved oil reserves of the Global Top 20 Integrated Oil and Gas Companies declined by 2.5%, from 93,591...