SINGAPORE- World's top exporter Saudi Arabia raised on Wednesday the September official selling prices for all crude grades it sells to Asia for a second month, three sources with knowledge of the matter said.

The OSP for flagship Arab Light crude to Asia rose 30 cents to $3 a barrel above the average of Platts Dubai and DME Oman, they said.

The price hike was within expectations seen in a Reuters survey on Friday.

(Reporting by Florence Tan, editing by Louise Heavens) ((Florence.Tan@thomsonreuters.com; Reuters Messaging: florence.tan.thomsonreuters.com@reuters.net))