Economía y Petróleo: Petroleo

Department of Energy USA

Energy Information Administration USA

Energy Information Links on the WWW 

PDVSA: Petróleos de Venezuela, S.A.

International Energy Agency IEA 

OPEC Home Page

OilOnline - The Original Online Source for the Oil Industry

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PEL - Petroleum Economics Limited, International Oil and Gas Consultancy

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PETROBRAS

Petroleum World

Total: Petrolera Fancesa

Petroleum Economist