17 th international specialized exhibition called Energy. Resource Saving opened on 15 March in Kazan, which demonstrated import substitution in the process of repair of wells, renewable energy sources, energy saving equipment allowing to compensate the payments for complete overhaul. 133 companies, enterprises and scientific research organizations from Russia, Belorussia, Kazakhstan, Kyrgyzstan, representatives of companies from Germany, Slovenia, USA, Switzerland and Japan took part in the event.