The UK Health & Safety Executive (HSE) issued a Prohibition Notice against the Maersk Curlew on 1 June after vibrations caused a loss of integrity on a small bore drain downstream of the compressor leading to a hydrocarbon release.

Maersk FPSOs said the gas compression system is not critical to production but it had decided to keep the vessel shut-in to avoid excess gas being flared, limiting any environmental impact.

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