Sergey V. Brezitsky

TNK-BP Ltd. provides exploration services for the oil and gas industry. The company's services include exploration and production, refining, marketing, sales and trading, oilfield, and technology services. TNK-BP was founded in 2003 and is headquartered in Moscow, Russia

Alliance Oil Co. Ltd. engages in the integrated oil and gas services. It operates through the following segments: Upstream, Downstream, and Management and Other. The Upstream segment includes crude oil and gas exploration, extraction, and production. The Downstream segment comprises of oil refining, transportation, and sale of oil products. The Management and Other segment focuses on the management function, parent company, and subsidiaries involved in non-core activities. The company was founded on September 1, 1998 and is headquartered in Hamilton, Bermuda.