Breanna O'Reilly


Breanna is a projects lawyer with experience advising clients on infrastructure and energy projects in the Middle East, Australia and Asia Pacific regions.
Breanna has advised on all aspects of strategy, procurement, construction, tenure, financing, delivery and outsourcing elements of large-scale transactions. Her experience includes acting for public and private sector clients on energy and oil and gas projects and across all major infrastructure sectors.


Representative matters

A state-owned oil company on the development and ownership of a low-carbon LNG plant in Ruwais in joint partnership with private stakeholders.

Sponsors on the Shuweihat 4 RO IWP project in Abu Dhabi.

A shortlisted bidder on the Al-Mirfa and Al-Nouf Water Treatment BOOT being procured by a state-owned oil company in Abu Dhabi.

A gas and oil company on the Amiral co-generation and wastewater treatment projects to be developed in partnership with a public petroleum and natural gas company in the Kingdom of Saudi Arabia.

TAQA on its bid to develop the Hassyan reverse osmosis water desalination project being procured by DEWA in Dubai.



Barrister and Solicitor in the Supreme Court of Western Australia  2018


Bachelor of Laws, University of Notre Dame – November 2017

Bachelor of Commerce (Double Major: Marketing and Public Relations), University of Notre Dame – November 2017


Allen Overy Shearman Sterling LLP (practising in the Emirate of Dubai as “Allen & Overy RLLP” pending the registration completion of the new name with the relevant UAE local authorities) is a limited liability partnership registered in England and Wales with registered number OC306763.
A&O Shearman was formed on May 1, 2024 by the combination of Shearman & Sterling LLP and Allen & Overy LLP and their respective affiliates (the legacy firms). Any matters referred to above may include matters undertaken by one or more of the legacy firms rather than A&O Shearman.