1 MIN. DE LECTURA
RIO DE JANEIRO, Sept 14 (Reuters) - Brazil's state-run oil firm Petroleo Brasileiro said on Monday its chairman, Murilo Ferreira, asked to take leave until Nov 30.
Petrobras, as the company is known, gave no further information concerning the decision in its statement. Ferreira is also the chief executive of Brazilian miner Vale SA .
Reporting by Stephen Eisenhammer