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.
Within the areas where larger scale coverage exists, certain fixed 
structures, pipelines and cables have been omitted due to their complexity
and frequent change. The appropriate larger scale coverage should be used
in these areas.

