Oil climbed to its highest price since June on Monday, as conflict in the Middle East brings with it an inherent risk to the world’s available crude supplies.

Oil prices are up sharply as the widening Iran war disrupted tanker traffic through the Strait of Hormuz, highlighting how important the passageway is to

An Iranian Revolutionary Guards senior ⁠official ⁠said on Monday that the ⁠Strait of Hormuz is closed and Iran will fire on any ​ship trying to pass, Iranian media reported. This is Iran's most explicit warning since telling ships it was ‌closing the export route on ‌Saturday,

A new threat from Iran tonight around the critical Strait of Hormuz, where much of the world’s oil passes through. NBC News’ Christine Romans has the implications for the price you pay at the pump.

"Oil and gas tanker traffic through the Strait of Hormuz has ground to a near halt, satellite data show, as oil firms and trading houses have put voyages on hold out of fear that Iran might target vessels passing through this maritime choke point,

An Iranian commander threatened Monday to attack any ship crossing the Strait of Hormuz in a move that could choke about a fifth of global oil supplies and send oil prices soaring. "The strait (of Hormuz) is closed.

An Iranian Revolutionary Guards senior official said Iran will fire on any ship trying to pass the Strait of Hormuz, Iranian media reported.

Former Energy Secretary Rick Perry joins 'Varney & Co.' to discuss whether Iran has the capability to close the Strait oof Hormuz, how the oil and gas industry could be impacted and the mass shooting at an Austin bar.