Saudi Arabia raised light crude prices to Asia, while ADNOC's priced in higher differentials, and Qatar's differentials remained unchanged.

Oman offered 2 million barrels of prompt crude, traders said on Thursday. The tender closed on Wednesday, they added. No further details were available. Oman's ministry of oil and gas was not immediately reachable for comment.

Last month, Oman sold 1 million barrels of prompt October crude to Mercuria Energy Trading, following an outage at its Minal Al Fahal refinery after a fire.