The Mishrif Formation is an important succession that was deposited during the Cenomanian–Early Turonian. More than 79 thin sections of core in addition to well log data for from 2 boreholes within E oilfield (E-1, and E- 2) were used determine different associations facies interpret depositional environment Formation. Six major microfacies diagnosed Formation, Mudstone, Wackestone, Packstone, ...