Taqa’s Harding platform in the North Sea is being partially down-manned amid problems with power and water supplies.
The company said a glitch affecting power generation on Harding had led to production being shut down on Tuesday.
A burst water pipe in the accommodation block has also caused concern for workers’ welfare.
Taqa has decided to take non-essential workers off the rig, which lies around 200miles north-east of Aberdeen.
Seventy-two people are currently on Harding and 19 non-essential crew are being taken off the platform, a Taqa spokeswoman said.
The spokeswoman said: “We are currently investigating a problem affecting the power generation on our Harding platform.
“The platform has been shutdown as a result since Tuesday.
“In addition a burst water pipe occurred in the accommodation block on the platform on Thursday evening.
“The welfare of the people on board the installation is our main priority and we are in the process of making arrangements for non-essential crew to be taken off the platform.
The spokeswoman rejected suggestions made in a media report that fire pumps or firefighting equipment had been impacted.
A spokesperson for HSE said: “We are aware of the current issues on the Harding installation, and is in communication with Taqa about them.”
In February 2016, production on Harding was temporarily shut down following a gas leak.
In 2014, worker George Bartlett, from North Lanarkshire, fell into the sea during maintenance work on Harding and died.