Distillers on Islay face not being able to make whisky during the island's annual celebration of malt and music due to a shortage of oil.
The Bruichladdich will have to suspend production
A £4m pier extension was built on Loch Indaal to accommodate an oil tanker but low tides and silting have prevented it from docking regularly.
The company which supplies the oil said it could not guarantee deliveries.
Bad weather prevented the tanker unloading on Sunday and shallow water means it could dock below capacity.
With the tanker only only holding one tenth of its possible load, the oil will only last until Wednesday.
The Bruichladdich distillery, which stands opposite the pier, will have to stop distilling on Monday, just as hundreds of visitors are enjoying the island's malt and music festival.