The two energy companies at the heart of Russia’s economy are on the verge of a historic reversal that could subtly shift the balance of power in the corridors of the Kremlin. Gazprom PJSC, the world’s largest natural gas producer, is worth just $3.3 billion more than Rosneft OJSC, Russia’s biggest oil company. That premium, down from more than $250 billion in 2008, may disappear altogether as the five-year slide in Gazprom’s market value continues, according to analysts from Otkritie Financial Corp., Aton LLC and Raiffeisen Bank AO. “Rosneft may catch up with Gazprom by market value as early as this year,” said Andrey Polischuk, an analyst at Raiffeisen Bank in Moscow. The state-run gas exporter faces rising competition and the lowest prices in more than a decade in its main European market, on top of billions of dollars of spending commitments […]