SINGAPORE, Jan 15 (Reuters) - Kuwait slashed the official selling price (OSP) for Kuwait Export Crude (KEC) to Asia in December by $1.85 from the prior month to $0.25 a barrel above the average of Oman/Dubai quotes, a price document reviewed by Reuters showed on Monday.

The producer also cut the February Kuwait Super Light Crude (KSLC) OSP to $0.65 a barrel above Oman/Dubai quotes, $1.80 lower than the previous month. (Reporting by Muyu Xu; Editing by Tom Hogue)