Non-renewable resource companies established in 1991

PJSC Lukoil Oil Company (Russian in Cyrillic script: Лукойл , stylized as LUKOIL and ЛУКОЙЛ in Russian Cyrillic) is a Russian multinational energy corporation headquartered in Moscow, specializing in the business of extraction, production, transport, and sale of petroleum, natural gas, petroleum products, and electricity.

Naftogaz of Ukraine (, Naftogaz Ukrainy; literally "Naphtha-Gas of Ukraine") is the largest national oil and gas company of Ukraine. It is a state-owned company subordinated to the Government of Ukraine. The vertical-integrated company carries out a complete cycle of exploration operations and development of deposits, operating and exploratory drilling, extraction, transportation, and refinement of natural gas and crude oil, supply of natural and liquefied gas to consumers.

'Naturgy Energy Group S.A., formerly Gas Natural Fenosa''''' (), is a Spanish multinational natural gas and electrical energy utilities company, which operates primarily in Spain. The company's administrative headquarters are in Barcelona, while its legal headquarters are in Madrid.

Ignitis Group (Ignitis grupė AB; former name: Lietuvos Energija UAB) is a state-owned energy holding company located in Vilnius, Lithuania. The Group’s core business is focused on operating Lithuania’s electricity distribution network (Networks) and managing and developing its Green Generation Portfolio (Green Generation). The Group also manages strategically important reserve capacities (Reserve Capacities) and provides services to its customers (Customers & Solutions), including the supply of electricity and natural gas, solar, e-mobility, energy efficiency and innovative energy solutions fo

company

American energy company

The state-owned Public JSC Ukrgasvydobuvannya () is the largest Ukrainian gas producer. It is a vertically integrated company with a complete production cycle: from exploration of gas and gas condensate reserves, field development, transportation, gas processing and condensate and oil refining to sales.

Mining company of Iran