Iran launched a coordinated wave of attacks on major energy infrastructure across the Gulf on Thursday, targeting facilities in Qatar, the United Arab Emirates, and Saudi Arabia, in a sharp escalation of the ongoing war.

Among the targets was the world’s largest liquefied natural gas complex in Qatar, as well as gas fields and energy facilities in the UAE. Iran also fired missiles and launched drones toward Saudi territory. The attacks came a day after Israel bombed Iran’s South Pars gas field, one of the largest natural gas reserves in the world.

The strikes mark a significant expansion of the conflict, with Iran directly targeting neighboring Gulf states rather than limiting its response to Israel or U.S. interests.

Separately, the Kuwait News Agency reported a drone strike on a unit at the Mina Al-Ahmadi refinery, one of the largest refineries in the Middle East. The attack was confirmed by the Kuwait Petroleum Corporation.

The coordinated assaults sent shockwaves through global energy markets, already under strain from disruptions to the Strait of Hormuz, a critical passage for global oil supplies.

Oil prices surged in response, with Brent crude climbing above $110 per barrel—up more than 50% since the conflict began on February 28.

President Donald Trump said late Wednesday that Israel had acted independently in its earlier strike on the South Pars gas field. In a post on Truth Social, Trump said the United States had no prior knowledge of the attack and emphasized that Qatar was not involved in the operation.