This likely is not a big deal and some are mis-representing the event.
Mystery surrounds Iran's seizure of oil tanker in Strait of Hormuz
https://www.telegraph.co.uk/news/2019/07/18/iran-seizes-oil-tanker-gulf/...No country is yet to claim ownership of the Panama-flagged MT Riah, which went missing over the weekend. She appears to have changed management several times in the last few months. The last known company, KBR Petrochem, could not be reached for comment....
...She was then tracked near the coast of Ras al-Khaimah before changing course and travelling north towards Iranian waters, after which it stopped transmitting its signal on Sunday at about 4.30am local time....
...She was then tracked near the coast of Ras al-Khaimah before changing course and travelling north towards Iranian waters, after which it stopped transmitting its signal on Sunday at about 4.30am local time....
...Mohammd Javad Zarif, Iran's Foreign Minister, told reporters at the Iranian mission to the United Nations in New York: “It’s not a tanker. It’s a small ship carrying a million litres, not a million barrels, of oil. We do it every other day. These are people who are smuggling our fuel.
"This is … one of the things that we do in the Persian Gulf, because of the heavy subsidies that we provide for our own fuel products,†he said....