Vostok Gas
 Vostok Gas Ltd (named Vostok Nafta Investment Ltd prior to 24 May 2007) was an investment company mainly focused on oil and gas from the former Soviet Union. The company was founded in 1996 and had its headquarters in Bermuda. Almost all Vostok Gas's holdings were American Depositary Receipts (ADRs) in Russia's Gazprom which made the company owner of approximately 1.5% of Gazprom.