Japanese refineries have put a halt on imports of Iranian oil after buying 15.3 million barrels between January and March ahead of the expiry of a temporary waiver on U.S. sanctions, according to industry sources and data on Refinitiv Eikon.  The waiver, which allowed Japan to buy some Iranian oil for another 180 days, expires in early May. However, Japanese refiners want to ensure enough time for all cargoes already loaded to arrive in Japan and for payments to be completed. “We think it would be difficult to keep on lifting Iranian oil after March,” a Fuji Oil spokesman said, noting that banks and insurance companies want to make sure all the transactions and deliveries are done well before the waivers expire. The last Iranian oil cargo onboard supertanker Kisogawa is expected […]