Saudi Arabia's state oil giant Aramco has set the May price for its Arab light crude oil to Asia at a discount of $7.3 to the Oman/Dubai average, down $4.2 a barrel from April, according to a document seen by Reuters on Monday.

It has cut the May OSP of its Arab light crude oil to the United States to a discount of $0.75 per barrel versus ASCI, down $3 a barrel from April, according to the document.

Aramco left its OSP for Arab light crude oil to Northwestern Europe unchanged from April at a discount of $10.25 per barrel to ICE Brent.