Gazprom 1980s, the Ministry of Gas Industry found large natural gas reserves in Siberia, the Ural region and the Volga region. The Soviet Union became a major gas producer. In August 1989, under the leadership of Viktor Chernomyrdin, the Ministry of Gas Industry was renamed the "State Gas Concern Gazprom", and became the Soviet Union's first state run corporate enterprise. In late 1991, when the Soviet Union dissolved, gas industry assets were transferred to newly established national companies, such as Ukrgazprom and Turkmengazprom. Gazprom kept assets located in Russia and secured a monopoly in the gas sector. In December 1992, when
Gazprom from his position as the Chairman of the Gazprom board. The Russian Government's stock in Gazprom gave Putin the power to vote out Vyakhirev. Chernomyrdin and Vyakhirev were replaced by Dmitry Medvedev and Alexei Miller. They were Putin's prior employees in Saint Petersburg. Putin's actions were aided by the shareholder activism of Hermitage Capital Management Chief Executive Officer William Browder, and the former Russian Finance Minister Boris Fyodorov. Miller and Medvedev were to stop asset stripping at Gazprom and to recover losses. Itera was denied access to Gazprom's pipelines and came close to bankruptcy. Itera agreed to return stolen assets