1. Numerous uncharted surface structures, underwater obstractions, tanker mooring bouys, storage tankers are encountered in Oilfield Development Area. Some of them carry warning lights and audible signals. Within the area vessels, underwater craft and divers engaged in construction and maintenance of ingtallations may also be enccountered. It is prohibited to approach oilfield development structures within less than 500 m. When navigating marine should take precautions.
2. When anchoring or trawling in the vicinity ofa pipeline mariners should bear in mind the danger of pipeline damage which may cause fire or loss of a vessel's buoyancy. In any case of pipeline damage mariners riask prosecution. 