Petr leo Brasileiro S.A. Petrobras announced that Mr. Antonio Carlos Alves Caldeira, Director of Operations & Logistics of its wholly-owned subsidiary Petrobras Distribuidora S.A. (BR), submitted his resignation. The Director of Retail Stations, Mr. Marcelo Fernandes Bragan a, will temporarily accumulate the functions of Director of Operations & Logistics, until a new name is appointed and approved by the Board of Directors of BR, after the procedures required by BR's rules of governance.