This was reported in Rosneft.
The company said that Feigin “spent his whole life researching the problems of the fuel and energy complex, took an active part in preparing scenarios and forecasts for the further development of the industry.”
He also "led the Institute of Energy and Finance, played an important role in the analytical support of the state’s energy strategy, and participated in the development of the largest Russian oil and gas projects."
In September, Russian scientist-economist, academician of the Russian Academy of Sciences Viktor Ivanter died at the age of 83.