Jee-Seon Lee Partner

Meet Jee-Seon

Jee-Seon is a commercial lawyer with experience in corporate and regulatory issues and energy and resources projects.

She has broad experience in the energy and natural resources sector advising clients on mining construction and procurement contracting, upstream oil and gas projects to downstream gas and electricity projects and contracting. She has particular experience in the electricity and gas industry including advising on the acquisition and divestments of energy assets including power stations, gas pipelines and associated infrastructure; regulatory regime governing the electricity and gas markets; power station development; gas and electricity supply contracts and access to electricity and gas transmission and distribution systems.

Jee-Seon has had extensive involvement in the electricity and gas reform process in Western Australia, having spent 12 months at Western Power Corporation on secondment and advising the Corporation on its disaggregation and being involved in submissions to the Western Australian Government on a range of energy reform initiatives.

She was the Chairperson of the REMCo Compliance Committee from 2010 to 2013. Jee-Seon is recognised as a leading lawyer in Energy Law by Best Lawyers Australia, 2019.



Osaka Gas

Advising Osaka Gas in relation to the acquisition of an interest in the Ichthys Project and an interest from Horizon Oil in the PNG Stanley Gas Project.

Infrastructure Capital

Advising on contractual arrangements for its Western Australian assets including the Neerabup and Kwinana Power Stations and its Esperance power and gas business including fuel supply, power purchase agreements, licensing obligations, business restructuring, operation and maintenance contracts.

Barrick Gold

Advising Barrick spanning operations in Australia, Africa and PNG on various gold mining joint ventures, farm-in/farm-out arrangements, mining, construction and procurement contracts, electricity, gas and fuel supply contracts and CIF concentrate sales.


Advising on its Perth Basin Project including joint venture arrangements, gas and condensate sales, land owner access and compensation issues.

Price Review

Advising a buyer on a confidential price review process for a long term commodity contract.

Alinta Energy

Advising a consortium of bidders on the acquisition of Alinta Energy, in particular, Alinta Energy’s WA assets comprising of Port Hedland/Newman assets and SWIS electricity and gas portfolio.


Advising a consortium of bidders on the acquisition of an interest in the BG QCLNG Project which involved due diligence on both upstream and downstream aspects of the BG QCLNG Project.


Recommended in Energy and Natural Resources Law
Asia Pacific Legal 500, 2018
Listed as a leading lawyer in Energy Law
Best Lawyers Australia, 2014 - 2020
Listed as a leading lawyer in Natural Resources Law
Best Lawyers Australia, 2020
Listed as a leading lawyer in Oil & Gas Law
Best Lawyers Australia, 2017 - 2020

Career & qualifications


  • Bachelor of Commerce, University of Western Australia
  • Bachelor of Laws (Hons), University of Western Australia

Insights Read more insight

Draft regulations and guideline for the Australian Domestic Gas Security Mechanism

On 27 April 2017, the Commonwealth Government announced that it would implement the Australian Domestic Gas Security Mechanism (ADGSM) to ensure there is a sufficient supply of natural gas to meet...

High Court warns to take care with 'reasonable endeavours' clauses

The case of Electricity Generation Corporation T/As Verve Energy v Woodside Energy Ltd & Ors [2014] HCA 7 (5 March 2014) provides the latest guidance on drafting 'reasonable endeavours'...

Consequential loss revisited: Regional Power v Pacific Hydro Group [2013] WASC 356

In the October 2013 issue of Acumen, we gave an overview of the divergence in approach of courts in England, Australia and New Zealand in the interpretation of ...consequential... or ...indirect......