Who would want to do business with one of Vladimir Putin’s best friends? Plenty of people starting with BP (NYSE:BP) and Exxon Mobil (NYSE:XOM) -- if that friend happens to be Igor Sechin chief executive of Russian state-owned oil company Rosneft (PINK:RNFTF). Sechin is a famous Bad Guy in the Russian hierarchy. An old KGB mate of Putin’s he is supposed to have engineered the dismantling of private oil power Yukos after the arrest of its boss Mikhail Khodorkovsky in 2003. Rosneft absorbed most of Yukos’ production assets. Sechin was rewarded with a promotion to deputy prime minister in ...