The weekend strike on the Saudi Abqaiq facility appears to have dashed any hopes of a detente between Washington and Tehran.
Yemen's Iran-backed Houthi rebels claimed responsibility for drone attacks at the world's largest oil processing facility in Saudi Arabia, military and government spokespersons said Saturday.
The United Nations reports that at least 10,000 people have died since the start of the conflict in March 2015.
A recent CNN report claiming a U.S.-built bomb killed dozens of children earlier this month in Yemen has provoked outrage toward the Saudi-led coalition.
"More than 10,000 displaced households (nearly 80,000 people) have been assisted with food, emergency kits and other life-saving support."
Despite reports that the Saudi-led coalition had seized a crucial port city, a top Iranian official said the Houthis were "witnessing their advances every day."
A Saudi royal decree has forced the kingdom's chief of the joint staff and air force commander out of their positions.
A new report showed Yemen's Iran-friendly Houthi movement evaded the U.S. anti-missile system protecting troops from North Korea.
Revolutionary Committee head Mohammad Ali al-Houthi welcomed Saudi princes and "any employee or person who feels targeted by the regime."
Despite an aerial bombing campaign by Saudi Arabia, Shiite Muslim Houthi rebels have kept control of Sanaa and other parts of Yemen.
Saudi Arabia called the attack "a desperate attempt by Shiite Houthi rebels to disrupt Hajj."
Iran-aligned Houthis have lost much territory in a two-year-old civil war but still control the capital city.
How should we retaliate for the missile strikes against U.S. ships?
United Nations tries to extend the truce despite continuous ground skirmishes.
Coalition struck a funeral without authorization after receiving incorrect information about armed Houthis in the area.
U.S. military says a Navy ship was fired upon from Houthi-held territory but fighters deny it.
The attack, which is blamed on Saudi Arabia, killed at least 140 people on Saturday.
Houthi governing council says it will form a new government soon as G18 ambassadors condemn 'unconstitutional and unilateral actions.'
Al-Qaeda in the Arabian Peninsula has taken advantage of conflict in the region.