OIL AND GAS ACTIVITY


Numerous structures, surface and submerged, sometimes marked by buoys
exist in the
area indicated. These include drilling rigs which may be
temporarily located; details are promulgated by local Navigational
Warnings. 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.