Introduction
On 25 May 2026, the Federal Government released a draft Design Framework (Draft Framework) for its Domestic Gas Reservation scheme (Scheme). The core features of the Scheme were announced on 7 May 2026 following the release of the Gas Market Review report in December 2025.
The Draft Framework provides significantly more detail around the proposed implementation of the Scheme that allows LNG exporters and other market participants to meaningfully engage with the consultation process and start substantive preparations for the Scheme’s intended commencement on 1 July 2027.
The centrepiece of the Scheme is a ‘Domestic Supply Obligation’ (DSO), which will require LNG exporters to supply the domestic market with a quantity of gas equivalent to 20% of their LNG export volumes. Under the Draft Framework, LNG exporters will be required to physically supply – not merely offer – gas to domestic buyers to acquit their DSO, subject to a relatively limited variations regime (including a narrower carve-out for Pre-Existing Contracts) and some compliance flexibility measures.
This update discusses the key elements of the Scheme as set out in the Draft Framework, potential risks and issues for gas market participants, and next steps.
We expect that several features of the scheme will be of concern to LNG exporters (especially those with limited uncontracted volumes or proven reserves) and gas market participants, as well as international customers and Australia’s trade partners. It will be important for stakeholders to engage with the Government on these issues as soon as possible given the limited consultation period and tight timeframe for implementation.
Stakeholder feedback on the Draft Framework is open until 30 June 2026.
Key takeaways
Commencement
From 1 July 2027, Australian LNG exporters will be required to supply 20% of their LNG export volume (pro-rated for H2 2027) to the domestic market, subject to mechanisms for DSO variations and compliance flexibility. The existing ADGSM, Heads of Agreement and Gas Market Code conduct provisions will be replaced by new primary and subordinate legislation an amended Code.
Export approval required
LNG exporters must apply to Ministers for an export approval, providing details of their export contracts, domestic supply arrangements and how they propose to meet their DSO. The Draft Framework suggests that initial applications will be due by 1 April 2027.
Export approvals will be subject to compliance with the DSO. Failure to comply may result in revocation or restriction of future export approvals.
Pre-Existing Contract Protection
Existing LNG export contracts entered into on or before 22 December 2025 (Pre-Existing Contracts) will be recognised, and exporters may apply for a variation to their DSO to account for volumes already committed under those contracts.
However, the protection for Pre-Existing Contracts under the Draft Framework is subject to the exporter demonstrating that there is ‘no viable alternative’ for meeting their DSO other than breaching the Pre-Existing Contract(s). As such, it appears that LNG exporters will not automatically receive a DSO variation for Pre-Existing Contracts where it possible for the exporter to meet their DSO by other means, such as by purchasing third-party domestic gas (subject to the additionality test discussed below) or fulfilling export contracts with international spot market gas or through swap arrangements.
Variations and extensions to Pre-Existing Contracts executed after 22 December 2025 will not attract the same protection.
Compliance flexibility through alternative supply
Where an LNG exporter cannot meet its DSO from its own production, it may contract with third parties to supply gas on its behalf. This arrangement would be subject to ministerial approval and must result in the supply of gas to the domestic market that would not otherwise have been supplied (the ‘additionality test’).
This provides flexibility for LNG exporters to meet their DSO other than by increased production (which may take time and be capital intensive). However, there is nothing to guard exporters against having to purchase and supply domestic gas at a loss except for the proposed market conduct provisions and, potentially, ministerial discretion in the variations process.
Market liquidity and ‘release valve’
The risks of domestic oversupply will be managed through minimum liquidity requirements and a ‘release valve’ mechanism. LNG exporters will be required to make uncontracted DSO volumes (up to 30% of their DSO) available through shorter-term markets to ensure market liquidity. The AER will be given the power to trigger the ‘release valve’ mechanism if the domestic market is adequately supplied, which would permit exporters to divert excess domestic volumes to export markets, subject to an obligation to make-up that domestic supply in subsequent years and otherwise meeting their DSO and liquidity obligations. These measures are designed to maintain a ‘modest oversupply’ in the domestic market.
New conduct provisions
The Gas Market Code’s existing conduct provisions will be replaced with new provisions intended to increase market transparency and facilitate more effective commercial negotiations. The proposed market conduct provisions will place obligations on producers to determine reasonable offer periods, to agree negotiation timeframes with prospective buyers, to offer gas on price and non-price terms reflecting appropriate risk allocation, to not withdraw or terminate offers absent a material change in circumstances and to negotiate in good faith.
We expect that these reforms will remove the existing price cap under the Code based on the Gas Market Review recommendations and the description of the proposed provisions. However, this remains to be confirmed by Government.
Application of the Scheme
The Scheme will apply nationally to all LNG exporters. However, it remains uncertain how the Scheme will interact in practice with existing state-based reservation policies, particularly in Western Australia.
It is also unclear how the Scheme may practically apply to Northern Territory exporters who currently have only limited connectivity to the east coast gas market. At least initially, the Draft Framework suggests that infrastructure constraints will provide a basis for a variation of the DSO, but that is subject to the exporter ‘pursuing arrangements to overcome those constraints’. This may mean that NT exporters will need to invest in infrastructure or use other commercial arrangements (eg swaps) to meet their DSO in future years.
It is likely that much of the practical burden will initially be felt by Queensland based LNG exporters.
Key elements of the proposed Domestic Gas Reservation Scheme
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Key elements
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Summary
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Legislative structure
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Timing and implementation
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Regulator
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Regulated entities
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Domestic Supply Obligation (DSO)
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Meeting the DSO
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Pre-Existing Contracts
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Variations to DSOs / Flexibility mechanisms
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Annual DSO flexibility
Infrastructure constraints
Market-Based Release Value Mechanism
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Export Approval Process
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Minimum liquidity requirement to support the spot market
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Transparency
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Compliance
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Penalties
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