The Iran-backed militia threatened to attack the Saudi energy giant Aramco after the Saudi authorities issued an evacuation notice for an oil facility in the Yemeni capital.
The tone of the WPC Energy Congress in Riyadh this week was defiant even as delegates were forced to redirect travel or address the audience from afar.
A handout image of the WPC Energy Congress, which started on Sunday. Those attending were forced to reroute to other airports and even countries in the region.
Three deadly attacks by the Iran-backed Houthis in Yemen on an airport in the Saudi capital underscored the asymmetrical nature of their conflict with the kingdom.
Crown Prince Mohammed bin Salman of Saudi Arabia in Paris in August. Houthi strikes on the Saudi capital, Riyadh, have cast a shadow on his efforts to transform the kingdom into a global hub for business and tourism.
The strike on Saturday was the deadliest attack in a Gulf Arab country since the U.S.-Israeli war with Iran began in February, and forced the airport to temporarily suspend operations.