Abstract The wells were drilled in the Al Nouf field which is part of The Northeast Bab (NEB) fields comprise three major structures containing some of ADNOC Onshore's largest oil reserves namely Al Nouf, Rumaitha and Shanayel, covering approximately 1,200 square kilometers and located approximately 60 km west of Abu Dhabi city. The main hydrocarbon reservoirs in these structures are Kharaib-2 (Thamama Zones ‘B’) and Kharaib-1 (Thamama Zones ‘C’). The Al Nouf field lies on a coastal/shallow marine area and presents special environmental concerns due to the proximity of delicate coastal ecologies, while the Rumaitha and Shanayel fields are located entirely onshore, in a desert region some 30 km onshore from the coastline. The wells drilled in Al Nouf fields are cluster ERD wells with 10m spacing which are deviated from the surface. The drilling challenges include surface collision risks, unconsolidated surface formations in the surface section and total loss zones, and highly reactive shales in the intermediate section. Extensive back reaming while pulling the string out of hole may be required, with challenges often localized across problematic formations but also spreading across the entire open hole section. Mud rheology modifications have not proved effective in mitigating back-reaming events, so a new approach has been investigated consisting of the integration of a reaming stabilizer within the bottom hole assembly (BHA). The customized reaming stabilizer is designed with passive Polycrystalline Diamond Compact (PDC) cutters mounted on the leading and trailing edges of the blades, while Tungsten Carbide Inserts (TCI) are fitted along the gauge. The tool replaced the upper-most conventional stabilizer to provide a much more efficient reaming ability while limiting any impact on the directional behavior and bending stress state of the BHA. The paper will discuss how the substitution of conventional stabilizers within the drilling BHA with dedicated reaming stabilizers resulted in significant improvement in the wellbore condition, allowing drilling and back-reaming operations to be more efficient, and has ultimately helped drive the well construction cost down.