China, Russia and India say they will continue to buy petroleum from Iran, despite U.S. sanctions that would prohibit those sales, although banking difficulties are hampering their ability to invest in the Islamic Republic’s oil fields. Asian oil investors in Iranian projects in recent months discovered that they couldn’t rely on their usual banking partners in the United Arab Emirates to transfer funds for projects in Iran. That has delayed several deals worth billions, according to foreign development officials and people at the companies involved. Tuesday marked the start of a transition period that gives oil companies until Nov. 4 to adjust to a returning U.S. ban on buying and investing in Iranian oil and gas—the country’s most lucrative industry. The move followed President Trump’s decision in May to pull out of the nuclear agreement with Tehran. “Anyone doing business with Iran will NOT be doing business with the […]