According to Saudi Energy Minister Khalid al-Falih, no one has any idea how much oil Iran will be able to export after new U.S. sanctions against the Islamic Republic kick in on Nov. 4. But more precisely, Iran’s shipment figures – crucial to oil markets – are already a mystery. Iran’s oil exports are becoming harder to measure as ships switch off tracking systems, oil industry sources say, adding uncertainty over how far U.S. sanctions are scaring off buyers. The prospect of more oil heading into storage could make number-crunching even tougher. Amid pressure from U.S. President Donald Trump to cool the price of oil, the lack of export clarity adds to the challenge for other OPEC […]