The shallowest target alone covers an area of over 600sqkm. The Loligo prospect was first mapped in 2006 and has been re-mapped and re analysed several times since then. It is a large stratigraphic trap which is supported by a very consistent Class III AVO response on the seismic data. It is an ‘easy to map’ anomaly which stands out clearly above the background seismic responses when compared to the entire basin. In addition, it sits directly above an old high which used to separate the Southern basin (Fitzroy sub-basin) from the Northern basin (Volunteer sub-basin). This old high seems to be acting as a focus for hydrocarbon migration from deeply buried source rocks in each of the sub basins.
Beneath the southern part of Loligo several other prospects within the Tertiary Channel Play, overlap and may be penetrated by one carefully located well. The deeper prospects (each covering an area similar to Loligo) have been called Trigg, Trigg Deep and the Three Bears. Together these prospects are called the Loligo Complex. The prospective resources (recoverable oil) associated with the Loligo complex, are in excess of 4 billion bbls of oil or over 25tcf of gas.
