The government-published estimate covers existing offshore oil and gas infrastructure within its Commonwealth-waters scope. It assumes full removal and assets installed by July 2024.
The study includes facilities, pipelines, subsea infrastructure and wells. Assets wholly in state or territory waters and onshore are excluded. Commonwealth pipelines crossing state waters are included to the low-water line. The report sets out further boundaries and exclusions.
This is an indicative portfolio estimate, not an audited provision or a firm project budget. It should not be compared with an older headline number as evidence of savings without first reconciling scope and method.
For an individual asset, the useful starting point is a linked inventory, proposed end state, removal method and execution window. Keep external dependencies and assumptions visible before comparing estimates.
The national figure provides context. The asset-specific work establishes the decision basis.
02 / Reading the public record
Accepted does not mean complete.
The Atlas baseline contains ten selected NOPSEMA activity or assessment records. Eight show an accepted environment plan; two are revisions under assessment. Five of the ten record a titleholder-notified commencement.
Accepted plans8
Under assessment2
Fig. BR-01.1 · Record outcomes in this ten-entry selection. This is not a national activity count or a measure of completed work.
Acceptance, commencement and completion are separate events. A published start date does not establish which components have been removed. The component scope and source date belong with every status.
NOPSEMA’s decommissioning hub lists property removal, proactive planning and consent-to-surrender material dated 31 March 2026. For a project team, the distinction between permissioning, physical completion and title surrender remains essential.
This first issue establishes a baseline. Future editions can compare retained records and identify which fields changed. No quarterly trend in expenditure, removals or activity is claimed here.
Official sources checked 10 September 2026. Source review dates do not represent inspection or verification of physical site condition.
Future editions
Keep the evidence within reach.
Request future briefing emails from Endura. Publication timing is subject to editorial review.
