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FILE PHOTO: Oil tankers wait to dock at Tupras refinery near the northwestern Turkish city of Izmit, Turkey, June 28, 2017. REUTERS/Umit Bektas/File Photo(reuters_tickers)
By Humeyra Pamuk and Julia Payne
ISTANBUL/LONDON (Reuters) - Turkey's biggest oil importer Tupras has cut back purchases of Iranian crude since May, when the United States said it would re-impose sanctions on Tehran, and analysts say Tupras is likely to stick to lower volumes in coming months.
NATO member Turkey depends heavily on imports to meet its energy needs and neighbouring Iran has been one of its main sources of oil because of its proximity, crude quality and favourable price differentials, traders say.
In the first four months of 2018, Tupras, Turkey's largest refiner, bought an average of 187,196 barrels per day of Iranian oil, data from Turkey's energy watchdog EPDK showed.
In April alone, Tupras imported eight cargoes - equivalent to just over 240,000 bpd - from the OPEC member.
But since May, when President Donald Trump announced the re-imposition of U.S. sanctions on Tehran after pulling out of a 2015 nuclear deal, Tupras's purchases of Iranian oil have gone down.
Tehran shipped four cargoes of crude oil per month to Tupras, equivalent to around 130,000 bpd, in May and June, tanker tracking and shipping data showed, down from six to eight earlier in the year.
So far in July, Tupras has bought three more cargoes.
The United States is due to re-instate sanctions on Iran's energy sector after a wind-down period ends on Nov. 4.
An industry source said the U.S. decision was the main reason for the decline in Tupras's purchases of Iranian oil since May, but said the company was likely to continue importing some Iranian crude, as it did when U.S. sanctions were previously in force.
"During the sanctions scheme of 2011 by the U.S., Tupras was able to purchase 3 to 4 cargoes of Iranian crude a month," the industry source said.
"I believe they would want to be able to stick to that this time as well instead of completely stopping. This crude needs to be bought by someone as otherwise it will send the price shooting up, which nobody wants," he said.
Refiners in other countries are affected by the sanctions because they want to maintain their access to the U.S. financial system. Indian refiners also cut imports of Iranian oil last month to avoid looming U.S. sanctions.
Trump initially planned to totally shut Iran out of global oil markets, demanding all other countries stop buying its crude by November.
The United States later said it may grant sanction waivers to some allies that are particularly reliant on Iranian supplies.
Most analysts still think the sanctions will significantly reduce Iran's crude oil exports, with some forecasting as much as a two-thirds drop to 700,000 barrels per day (bpd).
Turkey has criticised the U.S. decision, saying Ankara will not cut trade ties with Iran at the behest of other countries.
After meeting a U.S. delegation in Ankara on Friday, the Turkish foreign ministry said authorities were working to avoid the U.S. sanctions from harming Turkey.
In the past, whenever Turkey has needed to cut back on Iranian oil, Iraqi crude emerged as the alternative. Analysts say that is again likely to be the case in the coming months.
"Iran and Iraq have traditionally been Turkey's two biggest crude oil suppliers," Cuneyt Kazokoglu, head of oil demand at consulting firm FGE, said. "It won't be a surprise to see more Basra barrels flowing to Turkey," he said.
In the first four months of the year, Turkey imported an average of 39,768 bpd of Iraqi oil.
In the whole of 2017, Iraq was Turkey's third biggest supplier of crude after Iran and Russia, with 7 million tonnes of oil, equivalent to around 141,000 bpd.
(Reporting by Humeyra Pamuk; Editing by Adrian Croft)