Oil companies have eyed the Arctic for years. With an estimated 90 billion barrels of oil lying north of the Arctic Circle, the circumpolar north is arguably the last corner of the globe that is still almost entirely unexplored.
Several of the largest oil companies in the world are doubling down in Russia despite moves by the West to isolate Russia and its economy. ExxonMobil and BP separately signed agreements with Rosneft – Russia's state-owned oil company – to extend and deepen their relationships for energy exploration.