Jillian Marullo
1001 Fannin Street
Suite 1800
Houston, Texas 77002


Jillian Marullo handles an array of civil litigation matters as both plaintiff and defense counsel, representing clients in many sectors, including the oil and gas, communications infrastructure, and commercial property industries.  She has a diverse commercial litigation practice, with experience in general contractual disputes, insurance and indemnity matters, and disputes arising under mineral leases, farmout agreements, joint operating agreements, and commercial leases.  This practice includes significant experience in oil and gas lease disputes, including lease maintenance and termination, royalty, implied covenants, offset well/drainage clauses, and other lease disputes.  She also handles toxic tort and environmental litigation, including suits arising under the Clean Air Act, as well as cases involving property damage, trespass, and conversion. 

Jillian’s litigation experience also includes matters such as tortious interference with contract, breach of contract and warranty, breach of fiduciary duty, and negligent and fraudulent misrepresentation and concealment.  She also has experience in defamation, business disparagement, unfair competition, and employment matters, including those related to non-competition and non-solicitation agreements, misappropriation of trade secrets, and breach of fiduciary duty.  

Jillian also provides advice to oil and gas industry clients pertaining to state and federal statutes and regulations, including the Outer Continental Shelf Lands Act and the Texas Natural Resources Code and related regulations, and represents clients in both onshore and offshore regulatory disputes and appeals, including in royalty and decommissioning disputes.

Jillian has submitted amicus curiae briefs to the Texas Supreme Court in matters pertinent to the oil and gas industry.


  • Obtained multi-million-dollar arbitration award on behalf of major oil and gas company in indemnity dispute

  • Submitted amicus curiae brief on behalf of the Texas Oil & Gas Association in Key Operating v. Hegar in the Texas Supreme Court

  • Submitted amicus curiae brief on behalf of EOG Resources, Inc. in Southwest Royalties, Inc. v. Hegar in the Texas Supreme Court

  • Negotiated settlements of cases involving damage to commercial infrastructure, personal injuries, and oil and gas royalty, commercial lease, and other contractual disputes

  • Successfully argued multiple dispositive motions in a variety of cases, including contractual, oil and gas lease, and commercial lease disputes and Clean Air Act, toxic tort, and employment law cases

  • Represented energy clients during audits and in appeals and administrative proceedings before the Interior Board of Land Appeals and the Texas General Land Office

  • Represented clients pro bono in guardianship proceedings and mediation, resulting in their appointment as permanent guardians of the person of three minors



  • Houston Bar Association's Energy Law Section Council

  • The Foundation For Natural Resources and Energy Law, Member

  • The Institute for Energy Law's Inaugural Leadership Class

  • CASA Volunteer 

  • State Bar of Texas – Environmental and Natural Resources Section, Oil Gas & Energy Resources Section, and Litigation Section

  • Houston Bar Association – Oil, Gas & Mineral Law Section and Litigation Section

  • Houston Young Lawyer's Association

  • Texas Young Lawyer's Association

  • Women’s Energy Network

  • Texas Association of Defense Counsel


  • Texas Super Lawyers "Rising Stars", 2022

  • Best Lawyers "One to Watch", 2021

  • Achieved top score on the Texas Bar Exam, February 2013

  • Named a “Top Lawyer” by Houstonia Magazine, December 2016

  • Recipient of Houston Young Lawyers Association’s Associate Member Praise Award, 2011

  • Recipient of South Texas College of Law Student Bar Association’s President’s Award, 2011-2012


  • "“Unpacking a Year of Extremes: New Take-Aways in Force Majeure Analysis,” Liskow & Lewis Energy Webinar Series, April 8, 2021

  • “Courting the Court: Ethical Implications of Judicial Campaign Contributions,” Liskow & Lewis Energy Law Seminar, November 11, 2015, Houston, Texas, with Court VanTassell

  • “Enbridge In-House Seminar Casualty and Spill Response: How Things Have Changed!” Liskow & Lewis In-House Seminar, October 15, 2013, Houston, Texas, with John Gray and Robert Holden