This attack is a direct consequence of the much larger crisis in the Gulf:
The Strait of Hormuz blockade
Impact on Gulf energy flows
Iran's demands and wider war fronts
In short: The August 9 drone strike is the latest in a series of Houthi attacks on Saudi energy infrastructure that began in earnest on July 25. These attacks are part of a much larger regional war triggered by the US-Israeli campaign against Iran, Iran's effective closure of the Strait of Hormuz, and a resulting global energy supply crisis that has slashed Gulf oil exports by more than two-thirds.