Figure 4. Generalized geologic setting of Saba Bank, showing a Tertiary basin on the east and an older, probably Cretaceous, basin on the west and north, along with locations of the two exploration wells drilled on Saba Bank. Marathon SB-1 was drilled in 1977 to 2975m, and 15 km to the northeast, Fina SB-2 was drilled in 1982 to 4231m.