The startup, brainchild of billionaire Eike Batista, posted a net loss of $343.6 million reais ($168.3 million) in the three months to September, compared with a loss of $25.9 million reais in the year-ago period.
The company is in the red by $900.1 million reais for the first nine months of 2012.
On the other hand, the company said it had sold 800,000 barrels of oil to Reliance Industries of India in October, presenting sales revenue of 150.7
