Jon Mureen is a first-chair trial lawyer for sophisticated business and energy disputes, marked by his ability to grasp the most complex issues and communicate them simply and persuasively to a jury or judge. Clients call on Jon to take their highest-stakes cases to trial, sometimes late in the litigation.

    “Jon is highly intelligent, tenacious, and always calm under pressure,” says Denis Boulle, CEO of De Boulle Diamond & Jewelry. “And perhaps most important, the jury absolutely loved him!”

    Jon tries a range of complex matters in federal district, bankruptcy and state courts. He has particular experience in matters affecting the energy industry, in corporate shareholder, partnership and governance contests, director and officer liability cases, and trademark disputes.

    Whatever the issue, clients know Jon will take ownership, find the path to victory, and get there quickly and efficiently. While this sometimes means a negotiated settlement, his philosophy is that the most favorable settlements usually come through superior trial preparation. Jon’s sharp focus – early in a case – on what it takes to win at trial brings superior results.

    “Jon is a smart and savvy litigator who gets great results and gives excellent counsel,” says Carolyn Vaughn, President of VES Survey International. “He is someone I can trust with anything.”

    Jon began his career with a clerkship for the Honorable Sidney A. Fitzwater, Chief Judge of the US District Court for the Northern District of Texas. He is licensed in Texas and New Mexico.

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    • Trial and appellate counsel for energy trading company and director-defendants in Delaware Chancery Court; prevailed at trial against plaintiff-shareholder’s claim to take over board and CEO position; won affirmance on appeal.
    • Winning trial counsel for luxury retail client in complex trademark and contract dispute.
    • Trial counsel for plaintiff energy services company in commercial dispute with supplier; defeated dispositive motions; prevailed at trial.
    • Counsel for multiple operators in disputes with royalty owners over deductions for post-production costs.
    • Counsel for oil and gas lessee in lease termination dispute.
    • Litigation counsel for major soft drink manufacturer in high-profile trademark and franchising dispute with bottling company, resulting in settlement and termination of the relationship.
    • Prosecuted minority member’s claims for termination of limited liability company, breach of fiduciary duty and trademark infringement against majority member.
    • Trial attorney for white collar criminal defendant in federal jury trial; briefed and argued dispositive motions resulting in judgment of acquittal on major count.
    • Counsel for defendant midstream natural gas company against breach of contract claim ending in favorable settlement.
    • Trial counsel for defendant investment company against suit for payment of stock purchase price.
    • Trial counsel for plaintiff international oilfield products and services firm in arbitration against former subsidiary arising from separation.
    • Defended against nationwide product liability litigation, including multidistrict litigation, statewide class actions and individual lawsuits in both federal and state courts.


    • University of Virginia, J.D., Managing Editor, Virginia Journal of Social Policy and the Law. Class Rank: Top 11%
    • University of Texas at Austin, B.S., Highest Honors. Class Rank: Top 3%. President’s Leadership Award


    • New Mexico
    • Texas


    • U.S. District Courts for the Eastern, Western, Northern and Southern Districts of Texas
    • U.S. Court of Appeals for the 5th Circuit

    Memberships and Affiliations

    • Christian Legal Society

    Clerk Experience

    • U.S. Dist. Ct., N. Dist. of Texas
      The Honorable Sidney A. Fitzwater, Chief Judge

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    • Co-author, “Heritage Prevails: The Texas Supreme Court's Royalty Calculation Jurisprudence After Burlington,” Oil, Gas & Energy Resources Law, December 2019.
    • Co-author, “Operator Beware: Your New Mexico Contract May Not Mean What it Says,” The Energy Law Advisor, April 2019.
    • Co-author, “The Process of a Typical Commercial Case,” International Bar Association Litigation Guide, July 1, 2013.
    • Co-author, “The Honest Services Fraud Statute: A View from Dallas City Hall Corruption Case,” Federal Bar Association Newsletter, May/June 2010.

    Presentations and Speaking Engagements

    • Presenter, “Does Your New Mexico Contract Mean What it Says?” CLE for ExxonMobil in-house legal department, Houston, September 2019.
    • Speaker, “Taking and Defending Depositions,” CLE for Baker Botts trial lawyers, Dallas, November 2013.
    • Presenter, “Civil Remedies for Victims: An Alternative Means of Justice and Compensation,” Texas Summit on Trafficking and Exploitation of Children, Dallas, February 2010.
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