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
Energy in Ukraine a "lack of convergence in the positions of [Uglesintezgaz] and the energy ministry". Corruption is one of the top problems in Ukraine, characterised as a systemic phenomenon, which exists in all sections and levels of the public administration. Ukraine gets gas from Gazprom via third parties. Gazprom did not publish any reporting on anti-corruption programmes. In 2015 corruption allegations were made against Energoatom, Ukraine's nuclear power operator, with concerns raised by Prime Minister Arseniy Yatsenyuk. In March 2016, Energoatom's assets and bank accounts were frozen by Ukrainian courts over allegedly unpaid debts, against which Energoatom is appealing. Energy in Ukraine