Repsol Sinopec Resources has stretched a charter for a Prosafe accommodation vessel for another two weeks.
The Safe Boreas will continue to work in the Montrose A sector of the North Sea to 10 February, the Cyprus-based owner said.
The charterer will pay a reduced day rate consistent with market conditions.
There are further weekly options available.
Prosafe won a 21-day extension at the start of this year.