Gazprom is one of the world’s largest energy companies. Its major business lines are geological exploration, production, transportation, storage, processing and marketing of hydrocarbons as well as generation and marketing of heat and electric power. The history of “big gas” in the Soviet Union began in 1946 upon commissioning of the Saratov-Moscow gas trunkline. Gazprom State Gas Concern was established in 1989 on the basis of the USSR Gas Industry Ministry. In 1993, the concern laid the foundation for setting up Joint Stock Company Gazprom. The company has registered trademarks in Russia and abroad, with the exclusive right to use them held by Gazprom.