LONDON- * Algeria's Sonatrach set its August Saharan blend crude oil official selling price at flat to the dated Brent price

* This compares with a July price of 40 cents a barrel below dated Brent 

(Reporting by Ahmad Ghaddar; editing by Jason Neely) ((Ahmad.Ghaddar@thomsonreuters.com; +442075424435; Reuters Messaging: ahmad.ghaddar.thomsonreuters.com@reuters.net))