The area of study is in the Cental Graben, between the Heera-Panna-Bassein Platform and the Eastern Homocline, within the Mumbai Basin off the west coast of India (Figure 1). The area is considered prospective because of its proximity to the Central Graben (a known hydrocarbon kitchen) and the presence of carbonate and sandstone reservoir rocks in adjoining areas to the southwest. In this part of the basin, sandstones in the Paleocene to Lower Eocene sequences and carbonates in the Middle to Upper Eocene sequences are dominant reservoir rocks. Earlier workers mapped several carbonate buildups in Middle to Upper Eocene sequences on the basis of 2D seismic data. A few exploratory wells were drilled to prove the envisaged strati-structural plays but most were dry, primarily caused by lack of reservoir or seals.