An oil leak discovered in a pipeline system off the coast of Shetland prompted Abu Dhabi National Energy, the pipeline's operator, to close down up to 27 of its oil fields in the area.

Another eight platforms were shut down in addition to the one found leaking, although its operator said no hydrocarbons leaked into the sea.

The pipeline system produces about 10 percent of the United Kingdom's North Sea oil production -- 80,000 to 90,000 barrels a day.

Abu Dhabi National Energy is working to fix the leak.

Starting the system back up "would occur after thorough technical assurance has established that it can be undertaken safely and without any increased risk," a spokesman said (BBC News, Jan. 16). -- MM