Associated Press: Members of the Rockefeller family took a fight with Exxon Mobil Corp. public Wednesday, challenging the oil giant spawned by their namesake to split the roles of chairman and CEO and focus more on renewable energy. The family members, who describe themselves as the company’s longest continuous shareholders, said they are concerned that Exxon Mobil, with headquarters in Irving, Texas, is too focused on short-term gains from soaring oil prices and should do more to invest in cleaner …