Saudi Arabia’s oil sales to Asia’s two biggest importers are set to come in at lower-than-usual levels next month, as the war raging across the Middle East disrupts supplies from the energy powerhouse. Saudi Aramco, the world’s top exporter, is due to ship about 40 million barrels of crude to customers in China in April, according to traders familiar with the matter. That’s lower than usual—exports were set at 48 million barrels in February. Flows to buyers in India are also set to come in lower.