Organic geochemical insights from oil seeps, tars, rocks, and mud volcanoes on the petroleum systems of the Sinú-San Jacinto basin, Northwestern, Colombia

The results obtained indicate that additionally to the Late Cretaceous Cansona Formation, the Paleogene Arroyo Seco Formation could generate liquid hydrocarbons in the basin, and that the Neogene stratigraphic sequence is gas-prone. The presence of multiple potential source rocks for oil and gas generation in the basin open a new spectrum of exploration opportunities in conventional and unconventional petroleum systems associated with the Cenozoic, increasing the potential prospectivity of this under-explored basin.