OIL AND GAS FIELDS

Production platforms and associated structures, including tanker moorings, storage tankers and platforms on pipelines, generally exhibit Mo(U) lights, aircraft obstruction lights, and audible fog signals. Unauthorised navigation is prohibited within 500 metres of all such structures.
In Brunei waters further restrictions have been declared up to 1.6 miles from the charted platforms of certain offshore oilfields. For further information, see Admiralty Sailing Directions.