Oseberg C's topsides integrate production wells, drilling slots, three-phase separation, gas compression and dehydration modules. Oil and associated gas from both its own wells and subsea tie-backs undergo stabilization routines before export. Stabilised oil is piped via the Oseberg Transport System (OTS) to the Sture terminal for storage/refining; gas is compressed and sent into the Oseberg Gas Transport (OGT) pipeline and onward into continental markets through Statpipe or to the UK via suitable networks. The platform includes utilities for power generation, water handling, and control systems interfacing with the broader Oseberg field centre. Accommodation modules support long-term offshore teams. The steel jacket structure anchors in seabed strata and supports integrated processing suited to mature field operations and subsea connectivity.