US tanker offloads suspected Iranian oil cargo in Texas despite Tehran threats

American-owned tanker Suez Rajan conducted ship-to-ship transfer of suspected sanctioned Iranian oil near Galveston, Texas.
Fate of cargo entangled in tensions between US and Iran as Tehran threatens Persian Gulf shipping.
Iran warns retaliation against those involved in offloading tanker cargo.
US senators urge facilitating oil transfer to compensate terrorism victims; US Navy boosts regional presence.
Tanker owners and US officials refrain from commenting on situation.