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GA Drilling partners Petrobras to enhance drilling efficiency [Yahoo! Finance]

Petroleo Brasileiro S.A.- Petrobras American Depositary Shares  (PBR.A) 
US:NYSE Investor Relations: investidorpetrobras.com.br/en
PDF The collaboration involves the Brazilian state-owned oil and gas company's research and innovation centre, Cenpes, and focuses on developing an advanced downhole drilli [Read more]