Kepler: Iran's offshore oil revenues may drop to zero by mid-December Energy intelligence company Kepler warns that Iran's revenues from crude oil exports and condensate may drop to zero by mid-December if the American naval blockade continues. According to Kepler analyst Humion Falkshahi, Iran's remaining oil reserves in tankers outside the blockade zone are nearly depleted. The company estimates that Tehran could lose $3-6 billion in monthly oil revenue when payments for previously delivered shipments dry up. The forecast pertains to crude oil and marine condensate revenues, not necessarily all Iranian oil exports or other sources of government income. Source: Kepler.