Following the completion of a special periodic survey (SPS) in Singapore, a semi-submersible rig, which is
owned by Diamond Offshore Drilling, has kicked off the first drilling assignments on its list in Australia.

Diamond Offshore's Ocean Apex semi-submersible rig, which underwent a five-year special periodic survey at
the Seatrium shipyard in Singapore, has mobilised to Australia. While the rig has several drilling jobs lined up in
Australia, the first one on this list is the two-well drilling campaign with Woodside, which is now underway.

The rig owner explained: “A big thanks to the rig crews and Woodside teams, along with our respective service
providers, who are excited to get back to drilling after safely delivering the rig following its five-year special
periodic survey performed at Seatrium in Singapore.

“Following the Woodside work, there is a long line of work secured across multiple operators in Australia that will
see the rig committed into the late first quarter of 2025, and potentially through the third quarter of 2025 if options
are exercised.”

The assignment with Woodside is anticipated to last until October 2023 when the rig will start work for Inpex,
which is slated to end in July 2024. Afterwards, the rig is scheduled to begin its gig with Santos, which is
expected to last until February 2025. The Australian oil and gas giant also has five priced option wells at its
disposal with an estimated duration of 160 days.

Once the assignment with Santos is over, the rig is expected to work for Chevron. Currently, this work is
scheduled to end in March 2025. The U.S. oil major's deal with Diamond Offshore comes with a one priced
option well with an estimated duration of 40 days.

The 2014-built Ocean Apex rig has a maximum hook-load capacity of 1,000 tons, 15k five-ram preventer, water
depth capabilities of up to 6,000 feet, drilling depth capabilities of up to 30,000 feet, variable deck load of 7,000
long tons, and crew quarters for 140 personnel.

Encouraged by new contracts and extensions for its rig fleet in the U.S. Gulf of Mexico, the UK, and Senegal
during 2Q 2023, Diamond Offshore is expecting a further boost in day rates and fleet utilisation in the
foreseeable future.