ExxonMobil Australia Decommissioning Update: When an offshore platform retires, what's next?

September Update: Stasis Mode

The Bass Strait is home to 19 offshore platforms that have produced oil and gas that has played a vital role in powering Australian homes and businesses and supported Australia’s energy security for more than 50 years. Today, we continue to supply much-needed gas to south-east Australia from only six of these facilities.

While ongoing investments will see us maintain our reliable supply of gas from Bass Strait into the 2030s, we are also decommissioning the 13 offshore facilities that are no longer producing oil and gas. Some of these platforms are ready to enter stasis mode, meaning they’ve officially retired. Retired platforms are no longer producing oil or gas, and we have securely plugged all associated wells, and prepared them for removal.

Until these facilities are removed, we’re utilising renewable energy to ensure they remain in a safe and stable condition.

During active operations, platforms use diesel or fuel gas because they need a lot of energy. But once a platform has officially retired its energy needs drop significantly, making solar and wind power an ideal solution.

Retired platforms still need a small amount of power to protect the steel structures from rust and corrosion. This protection is important to keep the platform safe and stable.

To meet this need, Esso Australia is now using Energy Pods on some of its platforms. These pods use solar panels and wind turbines to generate renewable energy, replacing the need for fuel-powered generators.

A recent example is the Fortescue platform, where we installed an Energy Pod with solar panels around the sides and a wind turbine on top which can generate all the energy the retired platform needs. It’s a practical and environmentally responsible way we’re safely managing our offshore infrastructure.

We remain committed to transparent engagement with our community—keeping stakeholders informed and ensuring our work aligns with local expectations. If you have any questions or would like more information, please don’t hesitate to reach out via consultation@exxonmobil.com.