April 25 (Reuters) - Iran has set the official selling price (OSP) for its light crude oil grade for Asian buyers at $2.25 a barrel above the Oman/Dubai average for May, state-owned National Iranian Oil Company (NIOC) said on Thursday.

The May price is up $0.30 from the previous month.

(Reporting by Brijesh Patel and Ashitha Shivaprasad in Bengaluru)