Energy, Resources & Infrastructure

Specialists advising on the market’s most significant deals

Energy, resources and infrastructure projects are key pillars of economic growth the world over. The impacts of globalisation mean there’s never been a greater need to deliver projects more efficiently and with less risk.

Clients seek out our assistance to manage complex projects, understand regulatory requirements, fund growth, negotiate deals and navigate investment regimes. Working with us means you can access the expertise of corporate, finance and specialist lawyers from our Australian and international networks.

With each sector experiencing its own competitive tensions, regulatory scrutiny and a renewed focus on sustainable development, clients come to our practice for wide-ranging advice on energy, resources and infrastructure law. Our expertise can help you maximise sale prices, bring multinational investors to the table and develop novel structures for the most complex of projects.

Mining giants, infrastructure proponents, oil and gas pioneers, power providers and renewables innovators lean on the Mallesons team to support their leap into Australia.

The nation's most significant projects benefit from our advice, including the world’s first coal seam gas (CSG) to liquefied natural gas (LNG) project, the first Tesla Megapack big battery technology in Australia and the first sustainability-linked infrastructure financing with an interest rate directly linked to an emissions target.

We pride ourselves on having the bench strength to execute nationally significant ‘megadeals’, like the mining industry’s biggest ever deal (the Glencore/Xstrata merger) and the winning bid to acquire a majority stake in Sydney’s WestConnex – the largest road infrastructure project in Australia.

Our experience includes supporting the Port of Melbourne's world-leading multi-commodity port, Australia’s largest solar farm (Western Downs) and leading Queensland's largest class action for Seqwater.

A powerful reputation

We bring a breadth of perspective that comes from advising a range of proponents across the energy, resources and infrastructure sectors. We advise across the project lifecycle and have a powerful reputation for both understanding the issues and delivering effective solutions. 

Our Expertise in Energy, Resources & Infrastructure
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Industry Recognition
  • Band 1, Energy & Natural Resources
    Chambers and Partners Asia-Pacific 2025
  • Tier 1, Infrastructure Projects and Construction
    Legal500 Australia 2025
Testimonials
  • KWM (Mallesons) has the required expertise and handles complex matters in a very coordinated manner. Expertise at partner level and senior associate level is exceptional.
    Chambers and Partners Asia-Pacific 2025
  • KWM (Mallesons) understands the needs of its clients and will provide support on short notice.
    Chambers and Partners Asia-Pacific 2025
  • They're experienced lawyers with strong commercial acumen and industry knowledge.
    Chambers and Partners Asia-Pacific 2025
  • KWM (Mallesons) has a broad team with large bench of match-fit partners and deep teams of associates and lawyers. It also has strong relationships with lenders and a pragmatic approach.
    Chambers and Partners Asia-Pacific 2025
  • The KWM (Mallesons) team is technically and commercially excellent.
    Chambers and Partners Asia-Pacific 2025
Our latest thinking on Future Energy

Latest Thinking

Insight

Unlocking opportunity: Northern Territory backs its resources and energy future

The Northern Territory is moving decisively to position itself for the next phase of resources and energy investment, with the Finocchiaro Government delivering a major reform package to modernise the Territory’s resources framework and unlock new investment across mining, gas, hydrogen and carbon capture and storage (CCS).

27 August 2026

Insight

Another big day for data centres…in NSW: A new framework for connection

In our recent ‘Big day for data centres’ insight, we discussed the Electricity Infrastructure Investment Amendment Bill 2026 which would expand the access scheme framework developed for renewable energy zones to data centres and allowed for derogations from the National Electricity Rules.

17 August 2026

Insight

Big day for data centres: New renewable energy, grid connection and cost recovery rules explained

Australia is introducing major reforms for data centres, including renewable energy obligations, network cost recovery, grid access controls and connection requirements.

06 August 2026

Latest News

Deals

Mallesons advises Ausgrid shareholders on multibillion dollar sale of PLUS ES to DigitalBridge

Mallesons has advised consortium entities ultimately owned by Electricity Retained Interest Corporation – Ausgrid and / or funds managed by IFM Investors, APG and AustralianSuper, on the multibillion dollar sale of the contestable metering business of PLUS ES to funds managed by DigitalBridge.

10 September 2026

Deals

Mallesons advises Quinbrook on financing for Stage 3 of Supernode BESS

Mallesons has advised Quinbrook Infrastructure Partners (Quinbrook) on the project financing for Stage 3 of the Supernode battery energy storage system (BESS) in Queensland.

05 August 2026

Deals

Mallesons advises Horizon Oil Limited on off-market takeover of Cue Energy Resources Limited

Mallesons is pleased to have acted for Horizon Oil Limited (Horizon) on its successful cash and scrip off-market takeover of Cue Energy Resources Limited (Cue). The acquisition substantially expands Horizon’s production and reserves base, expands Horizon’s geographic footprint to nine producing oil and gas fields across five countries, and creates a stronger platform for future growth and value creation for both Horizon and Cue shareholders.

08 July 2026

Our Experts in Energy, Resources & Infrastructure

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