The article presents a study of 17 crude oil samples and 6 source rock samples using geochemical methods from the Mesopotamian Basin (North-East Syria) and North-East Palmyrides (Central Syria), in order to identify the geochemical correlation between them.The results of the study allowed the identification of two groups of oils, which were labeled as A and B. The distinguishing feature of these oils is their different origin, which was established based on biomarkers. Oils of these groups are generated by different types of source rocks of different ages. Group A oils were formed in relatively young marine clastic source rocks found in Middle Triassic, Middle Jurassic and Upper Cretaceous reservoirs in the North-Eastern Palmyrides area. The geochemical characteristics of these oils are similar to extracts from the Lower Triassic Amanus Shale Formation. Group B oils are present in Middle Triassic, Middle Jurassic and Upper Cretaceous reservoirs in the Mesopotamian foredeep. The geochemical characteristics of these oils are similar to extracts from Middle Triassic dolomites of the Curra Chine and Upper Cretaceous Shiranish formations. This study provides information about the origin and migration of oil in these regions, which may have important practical implications for the exploration and development of oil fields in Syria. Determining the sources of oil and the characteristics of source rocks allows more efficient and accurate production planning and optimization of field development processes, which, in turn, can contribute to increased production and economic development of the region.
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