Rio de Janeiro - The former head of Petrobras said on Thursday there was no way the state-run oil company could have discovered the massive corruption scheme that is adding to Brazil's economic and political troubles.
Petroleo Brasileiro SA, as Petrobras is formally known, followed all internal procedure in approving more than $30bn a year in spending, making it impossible to overcharge on projects, ex-chief executive officer Jose Sergio Gabrielli told a congressional committee in Brasilia investigating the corruption.
Gabrielli has not been charged but the government has frozen his assets.