In this June 19, 2018 file photo, Iran's Minister of Petroleum Bijan Zangeneh speaks to journalists at a hotel in Vienna, Austria. On Thursday, Nov. 8, 2018, Iranian state TV quoted the minster as predicting a painful time for international oil customers as U.S. sanctions take hold, saying waivers that Washington granted to eight major oil-importing countries are not enough for market demands. (AP Photo/Ronald Zak) **FILE**
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