The Russian company is focused on geological exploration, production, transportation, storage, processing and sales of gas, gas condensate and oil, sales of gas as a vehicle fuel, as well as generation and marketing of heat and electric power.
The rating is formed on the basis of financial indicators of companies, including the value of assets, total revenues, net profit and others.
All companies on the list have assets of more than $5.5 billion.
Coal companies saw a substantial decline in the rating, as more countries are striving to increase the use of renewable energy sources and cleaner fuels.
However, China's Shenhua Energy rose to 13th place from 25th, as the price of coal in China rose sharply following output cuts by Beijing.