Tullow Oil said it has made a change to operating procedures at the Jubilee Field FPSO (floating, storage and offtake) vessel in Ghana.
The company said it has informed the government of Ghana of the change following a recent inspection.
SOFEC, the original turret manufacturer, identified a potential issue with the turret bearing.
In a statement, the company said as a precautionary measure, additional operating procedures were now being put in place to monitor the turret bearing and reduce the degree of rotation of the
vessel.
A spokesman said: “SOFEC will now undertake further offshore examinations and Tullow will work with SOFEC to determine what further measures will be required.
“Oil production and gas export is continuing as normal.”