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Audit of ExxonMobil's management and follow-up of technical condition and barriers

On 17 April 2007, the Petroleum Safety Authority Norway (PSA) conducted an audit of how ExxonMobil Exploration and Production Norway AS (EM) manages and follows up technical condition and barriers. We did not uncover any regulatory nonconformities, but we did identify some improvement items linked to EM's methods for mapping technical condition, and their system for highlighting the status of technical barriers.


The audit was conducted in the form of a meeting in EM's offices at Forus.

Background for the audit
One of the PSA's prioritized areas is to follow up factors that can lead to the risk of major accidents.

In connection with this, another goal is to ensure that the players have systems to make sure that the condition of safety-critical technical barriers is known and safeguarded in accordance with the intentions of our regulations.

Purpose of the audit
The purpose of the audit was to clarify how EM works to obtain an overview over its technical barriers, the status of the barriers and how the barriers and their status is highlighted for relevant personnel.

Result of the audit

NødavstengningsventilIn the meeting, we asked EM to demonstrate how they maintain an overview over their technical barriers, including their performance requirements, their status and their condition. The presentations were based on an agenda proposed by the PSA prior to the meeting.

The presentation showed that EM has defined performance requirements for the barriers through its maintenance system, and that any nonconformities are handled through their system for handling nonconformities (MoC) and that these nonconformities are made evident to operations personnel by means of lists printed out each quarter showing the status of outstanding nonconformities linked to the barriers.

The presentation showed that EM has conducted condition audits with the intention of mapping technical nonconformities/improvement items on Balder and Jotun. The plan is to also conduct such an audit on Ringhorne in 2008.

Through clarifications made during the presentations and subsequent verifications, we identified some improvement items linked to EM's methods for mapping technical condition, and their system for highlighting the status of technical barriers.

Contact person in the Petroleum Safety Authority Norway:
Mike Theiss