Article in the collection "Problems and experience of development of oil fields of Western Siberia", 1984, C. 31-41. The basis of the accelerated development of the oil industry of Western Siberia was the complex electrification of all technological processes of oil production. The electric load of the oil fields of Glavtyumenneftegaz exceeded 1500 MW, and the annual electricity consumption 10 billion . k. Wt-h. Further development of the oil industry of the region will be accompanied by even higher growth rates of electricity consumption , increase in the number and unit capacity of electric receivers , and the analysis and calculation of electric loads of oil fields become the primary tasks, analysis and formation of energy regimes. Addressing these issues at all successive stages of oil field development is a necessary condition for the cost-effective, efficient operation of the power supply system and electrical equipment of oilfield facilities. These issues are of particular importance in the design of power supply fields.