Lennox comprises a steel-jacket wellhead structure supporting multiple horizontal production wells with gas lift and injection where required. Well fluids (oil, gas and water) are routed via subsea flowlines to the Douglas Complex reception manifolds; there is no major separation or export equipment on Lennox itself. At Douglas, three-phase separation splits oil, gas and produced water; gas is compressed and metered for export via the Liverpool Bay export system, and oil is stabilised before export or transfer to storage. Produced water is treated to regulatory limits before overboard discharge. Lennox utilities are limited to well control, power distribution and remote communications via umbilical to Douglas; major processing and export infrastructure reside at the host complex.