New Delhi, June 21 -- Iran's decision to close the Strait of Hormuz on Saturday after Israel renewed attacks in Lebanon is expected to put oil markets on edge again.

Traffic had tentatively begun moving through the critical shipping lane this week, including three Saudi-flagged supertankers that together were carrying more than six million barrels of crude, Kpler ship-tracking data showed on Thursday.

But after peace negotiations between the U.S. and Iran in Switzerland were paused on Friday after an earlier round of Israeli strikes in Lebanon, Trading Economics-a financial analytics platform-reported that "shipping activity slowed" that morning, and no outbound vessels were seen leaving the Persian Gulf. On Fox & Friends Weekend, howev...