BRIEF-Petrobras will not be timid on refining partnerships - CEO

Petroleo Brasileiro SA Petrobras : * PETROBRAS CEO CASTELLO BRANCO SAYS COMPANY WILL NOT BE TIMID REGARDING PLAN FOR REFINING PARTNERSHIPS

* PETROBRAS CEO SAYS COMPANY WILL BE OPEN TO DIVERSE SOURCES OF INVESTMENT ON REFINING PARTNERSHIPS * PETROBRAS CEO SAYS COMPANY LOOKING TO HAVE A DEAL WITH BRAZILIAN GOVERNMENT ON TRANSFER OF RIGHTS NEGOTIATION IN MAX 60 DAYS Source text for Eikon: Further company coverage: (Reporting by Marcelo Teixeira)