North Coast Marine Area 5 The NCMA 5 Block is located in shallow water (100-350’) off the northeast coast of Trinidad. Sedimentation occurred in the Miocene – Pliocene, depositing shelfal sands, which are currently under production in the Hibiscus, Chaconia and Poinsettia Fields, located to the northeast of the block. Three wells were drilled in this block HH9-1, Alice 1 and Betty 1.   Area   2311 km2 Water depths   100-350 feet Wells   HH9-1, Alice 1, Betty 1 2D seismic lines   900 line km HC types   Gas Source   Tertiary deep marine shales Seal   Overlying shales Prospective Sands   Miocene- Pliocene shelfal sands. Structural Trends   Bounded by the Tobago Arch to the NW NW-SE trending normal faults.