Norwegian offshore safety regulator has carried out an audit of Transocean Services, a subsidiary of
Transocean, and its processes for following up certification and recertification of drilling blowout preventers
(BOPs) with control functions. The watchdog is now awaiting a response from the company regarding the way
the identified nonconformities will be handled.

The Petroleum Safety Authority Norway (PSA) recently reported that it had conducted the audit on 21 June 2023
with the objective of gaining insight into Transocean Services' governing documents, internal requirements,
processes, and procedures related to certification and recertification of drilling BOPs with control functions.

In addition, it was important to verify that rolling five-year recertification is structured to ensure that all
components are covered and that recertification can be documented at all times.

While conducting its audit, the PSA identified breaches of the regulations. This entails two nonconformities
concerning documentation of overhauling and recertification along with a specification of regulatory
requirements.

The Petroleum Safety Authority asked Transocean Services to report how these nonconformities will be
addressed by 29 August 2023.

This audit comes after the Norwegian offshore safety watchdog carried out an audit of stability and marine
systems on one of Transocean's semi-submersible rigs, currently working for Equinor on the Norwegian
Continental Shelf (NCS).