Forteller hvilke funksjoner innretningen dekker. Eksempler: DRILLING, DRILLING TEMPLATE, FIELD CONTROL CENTER, FISCAL METERING, FLARE STACK, FLOTEL, FULL STABILIZATION, GAS EXPORT, GAS INJECTION, GAS INJECTOR, GAS PRODUCER, ISOLATION VALVE, LOADING BOUY, MANIFOLD, MANIFOLD STATION, OFFLOADING, OIL PRODUCER, PIG RECIVER, PIPELINE END MANIFOLD, QUARTER, RISER, RISER BASE, RISER SUPPORT, SEPARATION, SILO, STORAGE, T-CONNECTION, TERMINAL, TRAWLGEAR PROTECTION, TUNNEL, UMBILICAL SUPPORT, WATER INJECTION, WATER/GAS INJECTION, WELLHEAD, Y-CONNECTION, PROCESSING, ACCOMMODATION, SUPPORT, BOOSTER, DISTRIBUTION, WATER PRODUCER eller en kombinasjon av disse.