Brazilian state-run energy company Petroleo Brasileiro SA, or Petrobras, said late Friday that it plans to invest $236.7 billion over the next five years, maintaining spending and production targets at the same levels as last year plan. The 2013-2017 investment plan remains one of the world’s largest corporate spending plans, but is up only marginally from the $236.5 billion Petrobras earmarked for investments in the 2012-2016 period. Petrobras has been criticized by analysts and investors because its hefty investment spending has not resulted in increased crude oil production, despite finding some of the world’s largest oil discoveries in 20 years.