An issue with the water supply at the North Sea Magnus platform, which led to a contamination issue with diesel last year, has now been fixed.
A spokesperson for operator EnQuest confirmed the potable water issue was fixed at the beginning of this month.
Forty non-essential crew members were taken off the platform in November due to diesel contaminating the water supply.
The EnQuest spokesperson did not comment on what caused the problem.
Since the contamination issue in November, EnQuest has completed its acquisition of a 25% stake in Magnus from BP to become the operator.