Abstract
The features of the deep structure of the eastern part of the Caspian depression, the patterns of placement of large carbonate complexes, which are associated with the main accumulations of oil and gas, are considered. The discovery of industrial accumulation of oil in the Lower Permian terrigenous sediments on the Akzhar Eastern area showed the possibility of carbonaceous carbonate deposits of carbon to be the object of prospecting and exploration. Oil deposits in the supersalt complex of sediments on the structures of Karatube South and Saigak are assumed to be formed due to the vertical flow from subsalt clay-carbonate sediments, which also allows us to count on the expansion of prospecting works and to focus on the east of the Caspian depression a new direction geological exploration (DGE).