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 of the Gazprom Neft shares for $13.1 billion. Gazprom's ability to supply natural gas to domestic market and for reexport has relied to a large extent on imports from Central Asia. In 2007, Gazprom imported a total of from Central Asia: from Turkmenistan, from Kazakhstan, and from Uzbekistan. In particular, Gazprom purchased seventy-five percent of Turkmenistan gas exports in order to supply gas to Ukraine. In 2008, Gazprom paid $130/mcm to $180/mcm for gas from Central Asia. In 2015, Gazprom's proved and probable reserves of natural gas were , a 3.8% increase from the 2011 figure which represented 18.4% of