this data does not include PBR's the new big oil field discovered at the end of 2010.
http://www.petrostrategies.org/Links/worlds_largest_oil_and_gas_companies.htm
this data does not include PBR's the new big oil field discovered at the end of 2010.
http://www.petrostrategies.org/Links/worlds_largest_oil_and_gas_companies.htm