Reuters | Venezuela probes ex-oil czar Ramirez over alleged graft scheme Reuters Mommer was a pillar of oil strategy under former President Hugo Chavez, with oil sales serving as the cash cow for the country's socialist revolution. He was key in planning the nationalization of swaths of Venezuela's oil fields a decade ago and once ... Venezuela To Launch Oil-Backed Petro Cryptocurrency Within Days Venezuela: Oil Price Spike With Imminent Leadership Change |