Gazprom Promgaz Gazprom Promgaz Joint Stock Company Gazprom Promgaz (, abbreviated JSC Gazprom Promgaz, (), ) is a Russian company that specializes in structural engineering, design, research, heating, the electric power market, and other services related to natural gas. The company is a research institute of Gazprom and was established in 1949. The headquarters of the company are in Moscow. Gazprom Promgaz has branches in Vidnoye (Moscow Oblast), Novokuznetsk (Kemerovo Oblast), Oryol, Saint Petersburg, Ufa, Stavropol, Astrakhan (Russia), Minsk (Belarus), and Bishkek (Kyrgyzstan). Gazprom Promgaz has also an associated company, Ltd "Kamensk Plant of Gas Equipment" () in Kamensk-Shakhtinsky (Rostov Oblast). The
Sibir Energy Sibir Energy Sibir Energy is a London-based Russian public limited company, whose primary line of business is petroleum and natural gas exploration in Siberia. Its shares were traded on the Alternative Investment Market, part of the London Stock Exchange. As of 2011, it is a wholly owned subsidiary of Gazprom Neft. Sibir was founded in 1996, and since then it had pursued an integrated model for its business operations by retaining a focus on retail as well as its core exploration, extraction and refinery activities. On 21 August 2009, Gazprom Neft made a bid to take over all shares in