Gullfaks C's steel topsides on a concrete base include wells for production and water/gas injection tied to the field's subsea network. The topsides host multi-stage three-phase separation, gas treatment, dehydration, and crude stabilization. Stabilised crude is exported to shuttle tanker loading buoys; rich gas is routed into the Statpipe pipeline system to onshore processing at Kårstø. Utilities include platform power generation, produced-water handling, gas compression and utility modules; accommodation supports long-term offshore operations. Subsea tiebacks from nearby discoveries augment throughput; the platform integrates flare systems, safety shutdowns, and remote control interfaces with fieldwide automation. Continued life-extension planning addresses evolving reservoir dynamics and supports robust structural and process systems suitable for mature field operations.