Oil found some support Thursday from an increase in Saudi Arabia’s crude prices for Asian buyers, which implied strength in crude demand. But a hefty rise in last week’s U.S. supplies and uncertainty surrounding tariff disputes helped weaken the outlook for crude demand.

Oil edged higher after Saudi Arabia lifted prices for March loadings of all crude grades it exports amid surging premiums for Middle Eastern oil.

Saudi Aramco, the world’s largest oil producer, has significantly increased its official selling price for Arab Light crude oil destined for Asia. This move has sent ripples through the global energy markets,