<h1>US seizure of a rogue oil tanker signals expanded enforcement against illicit maritime oil trade and shadow fleet operations.</h1> US forces seized a large oil tanker identified as part of a shadow fleet that conceals sanctioned crude shipments by manipulating its automated identification system, flying false registration information, and conducting at sea transfers; the vessel had been previously sanctioned for links to a smuggling network and was carrying millions of barrels of Venezuelan heavy crude, illustrating an enforcement shift toward physical interdiction alongside sanctions and intelligence led tracking.