Ocean Onyx in Port Phillip Bay

​The Ocean Onyx offshore exploration drilling rig arrived in Port Phillip Bay on Tuesday 12 July 2022.

Towed by two Siem Offshore AHTS* vessels, was taken to a location near Ports Victoria's anchorages in the bay where it will spend two weeks being demobilised and readied for moving to its next destination off Western Australia.

Once readied for the rest of its voyage, the rig will leave the bay under tow again by the two AHTS vessels.

The Ocean Onyx is a semi-submersible, column stabilised, mobile, offshore drilling unit, owned by the Diamond Offshore Services Company.

*AHTS vessel - Anchor Handling Tug and Supply vessel