Wikipedia
Naftohaz of Ukraine (, literally "Oil and Gas of Ukraine"), is the national oil and gas company of Ukraine. It is a state-owned company subordinated to the Ministry of Economic Development and Trade of Ukraine. The company is involved with extraction, transportation, and refinement of natural gas and crude oil.
Ukraine's system of trunk natural gas pipelines and underground natural gas depots is operated by Ukrtransgaz, a subsidiary of Naftohaz. Another subsidiary of Naftohaz, Gas of Ukraine, is responsible for domestic gas distribution to the local district heating companies.
Naftohaz is a major Ukrainian employer with 175,000 workers. It received more than $6 billion of subsidies in domestic bonds from 2009 to 2012 as regulated gas prices and expensive Russian energy imports led to heavy losses. Former PricewaterhouseCoopers management consultant Andriy Kobolyev took over as CEO after the 2014 Ukrainian revolution tasked with reducing the country's dependence on Russian gas and reforming the company's business practices.