Seismic line and interpreted geoseismic section across the central Santos Basin (Modica and Brush, 2004). Petrobras, BG, and Petrogal have drilled two significant light oil play openers in the basin: 1-RJS-628A: > 1BBOE? (if so, it would be the biggest discovery in Brazil since Roncador in 1996!); 1-RJS-617D: rumoured to be also large, drilled through 2000m of salt, US$100-200-million well.