The East-West Pipeline in Saudi Arabia which delivers oil to the shores of the Red Sea has been an important workaround to the choking of tanker traffic by Iran in the Strait of Hormuz, the only exit for tankers from the Persian Gulf to the open sea. The Saudi government claims that 7 million barrels per day (mbpd) of crude oil can flow westward through the pipeline to the port of Yanbu though the current exports are thought to be lower (perhaps 5 mbpd) than that given infrastructure restraints.
But, now that pipeline has been bombed and put out of service. The Saudis are saying that the pipeline has been closed "as a precautionary measure." But that statement seems to underplay what has happened. Satellite images show that the attacks damaged at least two pumping stations. Repairing or replacing these stations may be more involved than simply replacing a section of damaged pipeline since the pipeline sits mostly above ground. And, of course, once repaired the pipeline could simply be attacked again. The 1200-mile length of the pipeline is not easily defended.
The oil-starved importers of the world have been gushing about how much oil has been getting out of the Persian Gulf right under the noses of a threatening Iranian Revolutionary Guard Corp (IRGC) who are standing watch with missiles and drones on the shores of the Strait of Hormuz. But even these surreptitious transits have carried volumes far below those transported before the war began, only 7 mbpd versus 20 mbpd. The East-West Pipeline became a crucial source of oil to the world after the Iranians closed the Strait of Hormuz.