The Trujillo basin along the coast of Peru is a wrench-type basin developed as a series of "en echelon" narrow transtensional gashes attributed to left-lateral displacement along a subduction-parallel, NNW-trending slip fault during the Tertiary. The Trujillo area is divided into two geological provinces represented by two distinctively different basement types. Of economic significance are the upper to lower bathyal turbidite fan complexes of the Middle Miocene to Cretaceous aged sequences. To date these reservoirs have been intersected only in the lower Eocene (Delfin and Lobos wells) and Campanian (Lobos well). The best oil source rocks identified to date in the basin are within the Middle and Lower Miocene and Upper Eocene sequences which are Types II to II/III. The Trujillo basin contains a wide variety of and numerous structural features. Basin inversion features, four-way dip, and fault dependent closures over high basement horst blocks, tilted fault blocks, dip reversals in growth faults, etc., are in abundance and in varying sizes. The focus of this study was on large features that had closures of 50 sq km or more and consequently could contain sufficient reserves to withstand a rigorous economic evaluation.