Gazprom, the world’s biggest gas producer, increased fourth-quarter profit 2 percent because of higher prices at home and abroad and the sale of Novatek shares. Net income rose to 315 billion rubles ($11.4 billion) from 309 billion rubles in the same period last year, according to calculations based on the gas export monopoly’s financial results on its web site Thursday. Revenue climbed 30 percent to 1.09 trillion rubles […]