During the research seismogeological models of the Neoproterozoic-Phanerozoic sedimentary complexes of the Siberian Platform (Anabar-Khatanga and Lena-Anabar oil and gas regions) northern part were constructed. It is concluded that in the Anabar-Khatanga and Lena-Anabar oil-and-gas areas Permian anticlinal traps complexly related to the salt diapirs have the best prospects of petroleum production. The carbonate deposits of Riphean-Carbon are also of interest. The existing geological and geophysical materials do not allow precisely stratify the Laptev Sea basin sedimentary cover. The thickness of platform deposits in which reaches 14-15 kilometers. From the structural-tectonic and general-scientific positions, this sedimentary basin is located in favorable conditions for the formation of hydrocarbon fields.