If at first you don’t succeed …

Petrobras’ long-standing investment in training and technology as well as its extensive experience and operations in Brazil gives it a competitive edge in its home market, says Guilherme Estrella, director of exploration and production at Petrobras. It is not just talk – last year, with a drilling success rate of 25%, the company found resources that it believes will add at least 3bn barrels of oil equivalent to its domestic reserves. Tom Nicholls reports