SINGAPORE, March 28 - The official selling price (OSP) for Oman crude in May will rise by $3.29 to $84.14 a barrel, Reuters calculations based on data from the Dubai Mercantile Exchange (DME) showed on Thursday.

The May Oman OSP is the average of the daily Oman settlements at 0830 GMT in March for the front-month contract .

The Dubai crude OSP, set at parity to DME Oman was calculated at $84.14 a barrel. (Reporting by Florence Tan; Editing by Christian Schmollinger)