Norwegian energy giant Equinor has confirmed that it closed down production on five platforms connected to its Oseberg Field Centre this week.
Equinor said that Oseberg A, B and D all had to be shut down on Wednesday alongside Oseberg C and a platform in the Veslefrikk block, understood to be tied-back to the field centre.
The Oseberg oil and gas field is located in the Northern North Sea and lies 81 miles from the city of Bergen.
The three main platforms that make up the Oseberg Field Centre are Oseberg A, B and D, which are all interconnected by bridges.
Production was halted when Equinor discovered “challenges” with the water input and parts of the luge equipment.
The Oseberg Field Centre and connected platforms are still understood to be shut down.
A spokesman for Equinor said: “We have no reason to believe that the equipment is not working but we wanted to check before we resumed production.”
Equinor announced in October that it had agreed to buy Chevron’s 40%-operated stake in the UK North Sea Rosebank field.
The company previously held a 30% non-operated interest in Rosebank, but sold it to Austrian firm OMV in 2013.
Rosebank was discovered in 2004 and lies about 80 miles north-west of Shetland.
It is thought to be capable of delivering 300 million barrels of oil.