Petrobras's first-quarter net income fell 15 per cent year on year to US $7.34 billion

[Petrobras's first-quarter net income fell 15 per cent to US $7.34 billion from a year earlier] Petrobras's first-quarter net income was US $7.34 billion, down 15 per cent from a year earlier; first-quarter sales were US $26.77 billion, down 1.5 per cent from a year earlier; first-quarter adjusted earnings before interest and amortisation were $13.96 billion, down 6.7 per cent from a year earlier.