NAB's facilities concentrate on multiphase fluid handling: primary separation of oil, gas and water; second-stage separation and stabilisation; gas compression and dehydration to meet export specifications; and produced water treatment to regulatory discharge standards. The processing trains include separators, knockout drums, compressors, heat exchangers and metering systems. Export infrastructure includes connections to the Cormorant Alpha pipeline system for oil and to the Frigg UK Pipeline System for gas. Utility systems are integrated across the Alwyn twin-platform complex, with power generation (gas turbines), control systems (DCS/SCADA), emergency shutdown (ESD), fire and gas systems shared. NAB also supplies power, chemicals (corrosion inhibitors, methanol for hydrate control), and water injection support to subsea tie-backs from surrounding satellite fields (Dunbar, Ellon, Grant, Nuggets, etc.). Accommodation support is provided on NAA. Pipeline headers and manifolds manage tie-backs and export flows, enabling long field life.