climate change

OAO Rosneft Oil Company is an integrated petroleum company owned by the Russian Government. Rosneft is headquartered in Moscow’s Balchug district near the Kremlin, across the Moskva river. Rosneft became Russia's leading extraction and refinement company after purchasing assets of former oil giant Yukos at state-run auctions that took place following the 2003 arrest and subsequent imprisonment of former owner, Russian oligarch Mikhail Khodorkovsky, on fraud and tax evasion charges.

Lukoil is Russia's largest oil company and its largest producer of oil. In 2006, it produced 95.2 million metric tons of oil. Its international upstream subsidiary is called LUKOIL Overseas Holding. Headquartered in Moscow, LUKOIL is the second largest public company (next to ExxonMobil) in terms of proven oil and gas reserves (ca. 20 bn boe by SPE standards; some 1.3% of global oil reserves).

ExxonMobil (NYSE: XOM) is the largest publicly traded integrated petroleum and natural gas company in the world, and the world's largest company measured by revenues ($404.5 billion in 2007) and market capitalization ($517.92 billion on July 20, 2007).