DOSSIER / MECHANISMMECHANISM · LIABILITY
Offshore Decommissioning
Status Looming liability
The multi-billion-dollar job of removing Australia's offshore gas infrastructure. Tax-deductible, left under-secured, and, when an operator fails, a bill the public backstops.
- Last on record
- 2026-10-10
- Named in
- 10 articles
- Across
- 2 cases
Named in 10 articles across 2 cases 22 connections: companies 8, lobbies 1, mechanisms 4, regulators and bodies 3, agencies and departments 2, parties and organisations 1, people 3
Key figure on file
A$60–66 billion
Estimated decommissioning liability for Australia’s offshore gas sector. Analysts estimate taxpayers could face 60 to 70 per cent of that cost. Industry estimates
Fig. 01 / Where this name appears
Australia's Gas HeistA$60–66 billionEstimated decommissioning liability for Australia’s offshore gas sector. Analysts estimate taxpayers could face 60 to 70 per cent of that cost.8 articles →The Inflation Rort22 articles →
Fig. 01Source: article scan · every article naming itAs of 2026‑10‑10Auto-assembled
Fig. 02 / On the record
- A$60–66 billionEstimated decommissioning liability for Australia’s offshore gas sector. Analysts estimate taxpayers could face 60 to 70 per cent of that cost.Source: Industry estimatesBeer, HECS, and the broken tax →
- Dismissed 7 August 2026On 7 August 2026 the Federal Court dismissed The Wilderness Society v NOPSEMA (NSD1342/2025, Justice Abraham, heard 7 April 2026) and ordered the applicant to pay both respondents' costs. The reasons, [2026] FCA 1082, hold that section 571(2) and regulation 16 "focus on the petroleum activity the subject of the environment plan", and that "decommissioning costs did not fall within the financial assurance provisions for the purposes of deciding whether to accept the Reindeer EP".Source: Wilderness Society Ltd v NOPSEMA [2026] FCA 1082 at [100], [104] and [106]The A$60 billion boomerang: who cleans up the offshore rigs when the gas money is gone →
- Up to 58% government shareIEEFA said in 2021 that, through PRRT refunds and company income-tax deductibility, the government's share of decommissioning costs for projects that have paid substantial PRRT could reach 58 per cent. This is a possibility IEEFA raised, not a payout recorded to date.Source: IEEFA, March 2021The A$60 billion boomerang: who cleans up the offshore rigs when the gas money is gone →
- Set to exceed A$2 billionBoiling Cold reported on 30 September 2026, from published contract information, that the Commonwealth has spent A$1.5 billion on the first of three phases of the Northern Endeavour decommissioning and that the total is set to exceed A$2 billion, paid through the industry levy on offshore oil and gas producers. A June 2025 Baird Maritime column had put the final budget at US$1 billion.Source: Boiling Cold, 30 September 2026; Baird Maritime, June 2025The A$60 billion boomerang: who cleans up the offshore rigs when the gas money is gone →
- A$1.5 billion downgrade over four yearsMYEFO 2025-26 cut projected PRRT revenue by A$1.5 billion over four years, in part due to an increase in credits for decommissioning expenditure.Source: MYEFO 2025-26, as recorded in the committee report, 7 May 2026The inquiry that couldn't agree →
- About A$60 billion clean-up billTitleholders are estimated to spend on the order of A$60 billion decommissioning offshore infrastructure over the next 30 to 50 years, the cost the growing PRRT credits are set against.Source: Australia's Offshore Resources Decommissioning Roadmap, industry.gov.auThe inquiry that couldn't agree →
- A$66.8bnInflation-adjusted decommissioning liability to 2070 for Australia’s offshore oil and gas sector. IEEFA found taxpayers could bear up to 58 per cent of such costsSource: Department of Industry, Science and Resources, November 2025; IEEFAWho profits →
Fig. 02Source: figures on file for this name, each tied to the article it came fromAs of 2026‑10‑10Auto-assembled
How we know
The sources of the 10 articles that name Offshore Decommissioning, by the tier the desk declared. A source supports its article, not necessarily a claim about Offshore Decommissioning.
Evidence strength · 181 sources across 10 articles
- Primary
- the document itself: legislation, a court record, a filing, a regulator’s own publication
- Official
- the organisation’s own statement about itself
- Masthead
- a news organisation with a corrections policy, reporting the primary document
- Trade
- specialist or trade press
- Aggregator
- republishes others’ work
7 of 10 articles are graded on every headline finding. How findings are graded
Fig. 03 / Named together
Fig. 03Source: article scan · articles naming bothAs of 2026‑10‑10Auto-assembled
02 / Connected in the graph
Companies 8
WoodsideCOMPANY · GAS · 7SantosCOMPANY · GAS · 6ChevronCOMPANY · GAS · 6INPEXCOMPANY · GAS · 5ShellCOMPANY · GAS · 4News CorpCOMPANY · MEDIA · 1NineCOMPANY · MEDIA · 1Seven West MediaCOMPANY · MEDIA · 1Lobbies 1
Australian Banking AssociationLOBBY · BANKING INDUSTRY GROUP · 1Mechanisms 4
The PRRTMECHANISM · TAX · 9The Revolving DoorMECHANISM · 2The Big FourMECHANISM · CONSULTANCY · 1Regulatory CaptureMECHANISM · 1Regulators & bodies 3
NOPSEMAFEDERAL REGULATOR · 3The ACCCFEDERAL REGULATOR · 2The RBAFEDERAL REGULATOR · 2Agencies & departments 2
The ATOACTOR · AGENCY · 5PM&CACTOR · DEPARTMENT · 2Parties & organisations 1
One NationPOLITICAL PARTY · 1People 3
Anthony AlbanesePERSON · POLITICIAN · 5Kerry StokesPERSON · MAGNATE · 2Jim ChalmersPERSON · TREASURER · 103 / The evidence chain
Australia's Gas Heist
02Beer, HECS, and the broken taxAUSTRALIA'S GAS HEIST · 04Who profitsAUSTRALIA'S GAS HEIST · 08What the media covers and howAUSTRALIA'S GAS HEIST · · E409The decommissioning rortAUSTRALIA'S GAS HEIST · · E411Gas and climate: the final rortAUSTRALIA'S GAS HEIST: FINAL · · E412The A$60 billion boomerang: who cleans up the offshore rigs when the gas money is goneAUSTRALIA'S GAS HEIST · · E413The inquiry that couldn't agreeAUSTRALIA'S GAS HEIST · 14The boom that paid Woodside backAUSTRALIA'S GAS HEIST · · E3The Inflation Rort
05Who rate rises helpedTHE INFLATION RORT · · E121The ‘war windfall’ at homeTHE INFLATION RORT · · E2