Breeds are described, containing oil and gas, migration of hydrocarbons in the earth's crust, concepts over and classifications of beds of oil and gas are brought, their distribution is described in the bowels of the earth. Caustobioliths are considered, geochemistry of carbon, organic substances, being the sources of hydrocarbons, geochemistry of oil and gas, geochemical conformities to law of change of composition of oil and gas are analysed in space and geological time. Given taking about the geochemical methods of searches of oil and gas, processes of their processing| some ecological aspects of oil and gas works are considered in the north breadths of the Krasnoyarsk edge.It is intended for the students of специалитета student on speciality 21.05.02 "Applied geology", students of city council of direction of preparation 05.04.06 "Ecology and природопользование", and also for the students of бакалавриата direction of preparation 21.03.01 "Oil and gas business" (programs 21.03.01.01 boring "Drilling of petroleum and gas mining holes", 21.03.01.02 "Exploitation and maintenance of objects of booty of oil and gas"). It can be useful to the specialists engaging in the problems of geological accompaniment of geological survey works and working mine of oil and gas.