NT Gas Bill Locks Darwin Energy Prices Below Perth and Brisbane Through 2028

The Northern Territory Gas Royalties and Regulation Bill 2026, now before the Legislative Assembly, changes royalty calculations for offshore and onshore gas projects and requires quarterly production reports from operators in the Bonaparte and Browse basins. The bill applies directly to Darwin residents because most Territory gas reaches households through the Amadeus Gas Pipeline and the Darwin LNG facility at Wickham Point.

National energy policy reviews have accelerated since the July 2026 Telstra outage and separate state inquiries into data centre power demand. The NT bill responds to those pressures by requiring companies to publish domestic supply volumes before export contracts are finalised, a step not yet required in Queensland but already operating in Western Australia.

Daily costs for Darwin households

Under the new rules, royalty revenue is directed into the NT Infrastructure Development Fund, which the 2026-27 budget papers allocate partly to remote housing maintenance in the Greater Darwin region. A typical Darwin home using gas for hot water and cooking would continue to pay the current regulated tariff, but the legislation states that any shortfall in domestic supply must be met first from local fields before further export approvals are granted.

Policy analysts note that Darwin residents currently pay about the same quarterly gas bill as Perth households, while Brisbane households pay less because Queensland applies a lower effective royalty on some fields. The NT bill keeps the Territory rate aligned with Western Australia at the headline 12.5 per cent level, with an additional 2 per cent levy on volumes above 2025 production baselines.

The legislation requires the Department of Industry to publish an annual comparison table showing Darwin, Perth and Brisbane average household gas prices. The first table is due within six months of royal assent and will use Australian Bureau of Statistics energy expenditure data.

Next steps include committee hearings scheduled for late July and a final vote expected before the August recess. If passed, the royalty changes take effect from 1 January 2027 and apply to all new and renewed gas production licences in the Territory.