First National Company for Operation and Maintenance Services الشركة الوطنية الاولى للعمليات و خدمات الصيانة is located in Ar Rumays, Oman on PX5P24J. First National Company for Operation and Maintenance Services الشركة الوطنية الاولى للعمليات و خدمات الصيانة is rated 4 out of 5 in the category power station in Oman.