Aurizon Network's 2025 UT5 DAAU
On 22 December 2025, we received a draft amending access undertaking (the 2025 UT5 DAAU) from Aurizon Network seeking to amend the 2017 access undertaking and extend the expiry of the undertaking until 30 June 2037.
We invited submissions from stakeholders and received 15 letters of support and 2 other submissions in response.
Aurizon Network’s 2025 UT5 DAAU proposal and stakeholder submissions are available below. We have also published a statement of regulatory intent, which sets out how we intend to manage the regulatory process.
17 March 2026
Submission
Anglo American – letter of support
pdf, 249.39 Kb
17 March 2026
Submission
Aurizon Holdings – letter of support
pdf, 138.49 Kb
17 March 2026
Submission
Aurizon Operations – letter of support
pdf, 135.56 Kb
17 March 2026
Submission
BMA – letter of support
pdf, 350.57 Kb
17 March 2026
Submission
Ensham Resources – letter of support
pdf, 212.39 Kb
17 March 2026
Submission
Glencore – letter of support
pdf, 274.71 Kb
17 March 2026
Submission
Jellinbah Mining – letter of support
pdf, 145.04 Kb
17 March 2026
Submission
Lake Vermont Resources – letter of support
pdf, 148.69 Kb
17 March 2026
Submission
Middlemount Coal – letter of support
pdf, 576.39 Kb
17 March 2026
Submission
Peabody Energy Australia – letter of support
pdf, 121.26 Kb
17 March 2026
Submission
Peabody Energy Australia PCI (C&M Management) – letter of support
pdf, 128.82 Kb
17 March 2026
Submission
Pembroke Olive Downs – letter of support
pdf, 1.26 Mb
17 March 2026
Submission
Stanmore – letter of support
pdf, 68.09 Kb
17 March 2026
Submission
Whitehaven – letter of support
pdf, 103.26 Kb
17 March 2026
Submission
Yancoal – letter of support
pdf, 138.35 Kb
22 December 2025
Submission
Aurizon Network’s 2025 UT5 DAAU supporting submission (redacted)
pdf, 27.40 Mb
22 December 2025
Submission
Attachment A – Frontier Economics report – The allowed return on debt
pdf, 629.02 Kb
22 December 2025
Submission
Attachment B – CEG report – Efficient regulatory benchmarks and transitions for the cost of debt
pdf, 928.20 Kb
22 December 2025
Submission
Attachment C – NERA report – Depreciation approaches
pdf, 1.24 Mb
22 December 2025
Submission
Attachment D – Wood Mackenzie report – WAML for Blackwater and Moura coal systems
pdf, 916.82 Kb
22 December 2025
Submission
Attachment E – Marsh report- Conceptual insurance program design and pricing
pdf, 958.69 Kb
22 December 2025
Submission
Attachment F – Finity report – Review of self insurance risk premium (redacted)
pdf, 2.49 Mb
22 December 2025
Submission
Attachment G – Oxford Economics report – Cost escalation forecasts to 2031-32
pdf, 885.60 Kb
22 December 2025
Submission
Attachment I – White and Partners report – 900 Ann Street Lease Benchmark (redacted)
pdf, 868.00 Kb
22 December 2025
Submission
Attachment J – Minter Ellison Consulting report – ICT expenditure 10 year outlook (redacted)
pdf, 15.01 Mb
Access side navigation