Petrobras, as the company is known, said in a securities filing the rise was driven by the ramp-up of pre-salt platforms that entered into operation last year and earlier this year in the Búzios and Lula fields.

The oil company, which lowered its 2019 production target to 2.7 million BOE per day from 2.8 million BOE per day, also said pre-salt production accounted for 57% of oil output in the second quarter.