Vsevolod Vladimirovich Cherepanov

Part of Gazprom PJSC, Severneftegazprom OJSC explores, produces, and distributes oil and gas. The private company is based in Tyumen, Russian Federation. The CEO of the Russian company is Stanislav Tsygankov.

Sakhalin Energy Investment Co. Ltd. develops, operates and markets the hydrocarbon resources. It develops and produces crude oil and gas under a production sharing agreement with the Russian Federation. The company operates and markets the hydrocarbon resources and associated infrastructure governed by the Sakhalin II Project. Sakhalin Energy was founded in April, 1994 and is headquartered in Yuzhno-Sakhalinsk, Russia.

Part of Gazprom PJSC, Gazprom Zarubezhneftegaz AO drills for oil and gas. The private company is based in Moscow, Russian Federation. Gazprom Zarubezhneftegaz AO was acquired by Gazprom PJSC on February 28, 2007.

Wintershall is a wholly owned subsidiary of BASF, which is based in Ludwigshafen, and specializes in energy. Wintershall is active in various regions of the world in the exploration and production of crude oil and natural gas. In Europe the BASF subsidiary trades and sells natural gas. The company also markets storage capacities for oil and gas, transportation capacities for gas as well as optic fiber capacities. Wintershall, which has its headquarters in Kassel, has been active in the exploration and production of oil and gas for more than 75 years and is now Germany's largest producer of crude oil and natural gas. In its exploration and production activities, Wintershall deliberately focuses on selected core regions where the company possesses a wealth of regional and technological expertise. These regions include Europe, North Africa, South America as well as Russia and the Caspian Sea region. In addition, these operations are complemented by the company's growing exploration activities in the Arabian Gulf. The company is actively pursuing a policy of ongoing investment in the development of new deposits and the expansion of existing fields. While doing so, Wintershall attaches the same importance to stringent environmental protection and work safety requirements as it does to its economic targets.

Gazprom Dobycha Nadym OOO is a subsidiary of Gazprom, a Russian energy company. The private company is based in Nadym, Russian Federation. The company is involved in the exploration, production, and transportation of natural gas. It is ultimately controlled by the Government of Russia.

Part of Gazprom Neft PJSC, Gazprom Neft Orenburg ZAO provides oil and gas exploration and wholesale services. The private company is based in Orenburg, Russian Federation. Gazprom Neft Orenburg was acquired by Gazprom Neft PJSC on October 18, 2011 for $114.10 million.