Moira Watson is a banking and finance attorney with Hall Estill in Oklahoma City
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Moira C.G. Watson, DPhil Shareholder

T 405-553-2831 | F 405-553-2855 |

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Moira Watson joined Hall Estill as Special Counsel in Spring 2016.  Prior to joining Hall Estill, she was a transactional tax associate in the Houston office of Fulbright & Jaworski LLP (now Norton Rose Fulbright), and then served in Oxford, UK as corporate and tax counsel to the energy law firm of Gillis, Borchardt & Barthel, LLP based in Hingham, Massachusetts.  

Her legal experiences have included the following representations:   

  • Public and investor owned companies in purchases and sales of assets, stock and interests in partnerships, corporations and limited liability companies;
  • Public and investor owned companies in domestic and international joint ventures and restructurings:
  • Public and investor owned entities on spin-offs and divestitures;
  • Corporations on initial public offerings; 
  • Municipal entities on transactions with investor owned entities;
  • U.S. federal tax matters relating to ownership interest in emerging companies;
  • Regulatory and U.S. federal tax matters pertinent to the hydroelectric power industry;
  • Charitable organizations with respect to both obtaining and preserving tax-exempt status; 
  • Immigration matters affecting movement between the United States and the United Kingdom;
  • Issues affecting exports to foreign jurisdictions including compliance with certain U.S. and foreign regulatory obligations;
  • Various state and local tax matters, such as property tax incentives and exemptions, including property tax abatement agreements, payment in lieu of tax agreements, industrial district agreements, property tax exemptions, and agreements relating to the limitation of appraised value for school district property tax purposes; and 
  • General corporate and tax concerns such as choice-of-entity and governance considerations in both a domestic and foreign context.   

While maintaining her active legal practice, in 2015 Moira received her doctorate from the Law Faculty at the University of Oxford (Brasenose College) and joined the faculty of the University of Oklahoma College of Law where she currently teaches courses such as Secured Transactions and Corporate Finance as a Professor in Practice.  


  • Rice University (B.A. in History and International Policy Studies, 2002)
  • University of Pennsylvania Law School (J.D., 2005) Penn Journal of Int’l Economic Law Articles and Comments Editor, elected by Journal Editorial Board (2004–2005) Associate Editor, appointed through competitive exam (2003–2004)
  • University of Oxford, Law Faculty, D.Phil (Ph.D., 2015)


  • Texas - 2005
  • Oklahoma - 2016
Legal Experience
  • 2012 - 2016 Gillis, Borchardt & Barthel, LLP
  • 2005 - 2010 Fulbright & Jaworski LLP
Community Involvement
  • Oxford Society of the Great Plains, Co-Founder and President
  • Downtown Oklahoma City Rotary Club 29, Member
  • Susan G. Komen Central and Western Oklahoma Board of Directors
  • Hall Estill Women’s Forum, Co-Lead and Frequent Presenter
  • Rice Association of Volunteer Alumni, Member
  • American Society for Legal History, Member
  • Law & Society Association, Member
  • Oklahoma City Mineral Lawyers Society, Member
  • NAIOP (Commercial Real Estate Development Association), Member
Teaching/Lecture Experience
  • University of Oklahoma College of Law,  Professor in Practice  2015 –Present   Teaching two commercial law courses: Secured Transactions and Corporate Finance
  • Stanford University Centre, Oxford, UK, Lecturer 2011–2014
    Developed and taught two courses: History of the Common Law and Comparative Constitutional Law
Speeches and Presentations
  • Financing Arrangements in the Energy Sector, invited guest lecture given to Professor Monika Erhman’s course, Oil and Gas Contracts, University of Oklahoma College of Law (February 23, 2017).  
  • Building a Transactional Practice, invited guest lecture given to ONE- S, University of Oklahoma College of Law (February 23, 2017). 
  • Security Interests 101, Hall Estill Lunch & Learn Series (October 2016).
  • English Legal Institutions Governing, Organizing and Reflecting a Pluralistic Colonial Society, invited panelist for the Corporate and Security Law Panel, Law & Society Annual Conference, New Orleans (June 2016).
  • Property Tax Incentives in Texas, speech with Stephen A. Kuntz to the tax departments of Shell Oil Company and Fulbright & Jaworski L.L.P. (May 2009).
Published Articles
  • A Pivotal Moment in Anglo-American Corporate Law? The Case of Sutton’s Hospital Explained, a law review article to be submitted for consideration in the upcoming round of submissions.
  • International Philanthropy: A U.S. Tax Perspective by Andrius Kontrimas & Moira C. Gillis, in TEXAS MONTHLY (Fall 2009).