Michael J. Mazzone


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Education and Clerkships

J.D., Suffolk University Law School, 1983

College of Arch. and Urban Planning, University of Michigan, 1978

B.S., Business Administration, University of South Carolina, 1977

Bar Admissions



North Dakota

Court Admissions

U.S. District Court for the Eastern District of Texas

U.S. District Court for the Northern District of Texas

U.S. District Court for the Southern District of Texas

U.S. District Court for the Western District of Texas


Michael J. Mazzone is an accomplished trial lawyer who has tried jury cases against prominent trial lawyers in Texas, Louisiana and New Mexico, and has handled cases pending in courts in North Dakota, Mississippi and Montana. Michael represents energy companies in environmental contamination, indemnity and toxic tort cases. He also represents parties in construction litigation/arbitration as well as real estate disputes.

Michael is Board Certified in Civil Trial Law by the Texas Board of Legal Specialization.

Nationally-ranked by Chambers USA, Chambers & Partners as a leading lawyer in Environment Law (2015), clients describe Michael as “practical, knowledgeable and down-to-earth. He doesn't overreact, and he takes a very reasoned approach to everything…he is the epitome of a good litigator; he doesn't depend on fireworks, he just gets up and does a good job."

Michael has made presentations on trial advocacy, arbitration and litigation at oil and gas industry conferences, bar association seminars, the Texas Environmental Superconference and the University of Texas Law School.

As an arbitrator, Michael is a member of the American Arbitration Association's National Panel of Construction Arbitrators where he is regularly called on to preside over numerous arbitration matters and has been a speaker at the AAA's National and Regional Panel Retreats, seminars providing training to AAA arbitrators.

For five years, Michael taught in the trial advocacy program at the University of Houston Law School as an adjunct professor of law, and he has served on the Editorial Board of the Houston Lawyer magazine, a publication of the Houston Bar Association. He oversees the Firm’s Volunteer Prosecutors Program in which lawyers in the Firm try misdemeanor jury trials for the cities of Houston and Arlington.


Chambers USA 2015

Chambers USA Recognizes 51 Haynes and Boone Lawyers

Fifty-one Haynes and Boone, LLP lawyers are recognized in the 2015 edition of the highly regarded Chambers USA directory of top lawyers and law firms.

Published by Chambers & Partners in May 2015

Recent Trials/Arbitrations

  • Lisa Parr, et al.; County Civil Court at Law No 5, Dallas County, Texas. Represented at trial a gas exploration and production company in a lawsuit brought by a landowner and his family claiming personal injuries and property damages from gas well drilling and production activities; case was falsely promoted as the “first fracking trial” in the United States.
  • MMR International, U.S. District Court, Southern District of Texas: Represented at trial builder of power barges in a lawsuit brought by a subcontractor claiming breach of a contract to supply a labor force in Venezuela.
  • Hazel Savoie, 38th Judicial District Court, Cameron Parish, Louisiana: Represented at trial a major energy company in a "legacy" lawsuit brought by a landowner claiming property damages from an oil field pit. Also represented the company in the related “preponderance hearing”, the first preponderance hearing held in Louisiana under Act 312.
  • Jesco Operating, LP, 165th Judicial District Court, Harris County, Texas: Represented at trial energy company and pipeline owner in lawsuit by pipeline contractor claiming its business was destroyed by non-payment of invoices. At trial, plaintiff sought to recover the value of its business and other damages.
  • Gordon Westergren, 269th Judicial District Court, Harris County, Texas: Represented at trial the developer of the Port Crossing rail-served industrial park in a lawsuit by a plaintiff who claimed an ownership interest in the project.
  • Concepcion Acosta, 5th Judicial District, Lea County, New Mexico: Represented at trial a major energy company in lawsuit by approximately 200 plaintiffs who claimed that a tank battery/oil storage facility in their neighborhood caused personal injuries and property damages. At trial, plaintiffs sought over $54 million dollars for nine "trial plaintiffs."
  • Conroe Express Concrete, 410th Judicial District Court, Montgomery County, Texas: Represented at trial a national homebuilder in a breach of contract and warranty lawsuit against concrete supplier. Foundations of a number of homes built with the supplied concrete failed.
  • EDI Architecture, Inc., International Arbitration Association: Represented architectural firm in dispute with contractor over project in Luanda, Angola.
  • Darr Angell, U. S. District Court for the District of New Mexico: Represented at trial a major energy company in lawsuit by a landowner for environmental damages and injunctive relief.
  • Jeanie R. Carter, 214th Judicial District Court, Nueces County, Texas: Represented at trial a major energy company in lawsuit brought by approximately 40 families who claimed that a refinery waste disposal pit in their neighborhood caused personal injuries and property damages. Before trial, plaintiffs dropped their personal injury claims. At trial, plaintiffs sought in excess of $170 million dollars for six "trial plaintiff" families.


Best Lawyers

Best Lawyers in America 2015

Best Lawyers in America®, an annual referral guide listing outstanding lawyers throughout the U.S., has once again recognized Haynes and Boone, LLP lawyers. This year, 56 of the firm's practices were listed in the guide.

Published by Woodward/White, Inc. in August 2014

Professional and Community Activities

  • American Arbitration Association 
  • Defense Research Institute (DRI) 
  • Houston Bar Association 
  • State Bar of North Dakota 
  • State Bar of Texas 
  • Texas Independent Producers and Royalty Owners Association 
  • Texas Oil & Gas Association

Publications and Presentations

  • "The Energy Sectors Environmental Challenges," panelist, 5th Annual Compliance and Ethics Summit, Noble Energy, Inc., Houston, Texas, November 19-20, 2014.
  • "Differing Results in Recent Nuisance Cases Against Oil and Gas Operators," co-author, Texas Lawyer, September 4, 2014.
  • “What is Going on Down There? Hydraulic Fracturing Issues,” panelist, 32nd Annual Water Law Conference, Las Vegas, Nevada, June 4, 2014.
  • “Technology and In-House Counsel,” conference co-chair, Corporate Counsel Institute, Suffolk University Law School, Boston, Massachusetts, October 4, 2013.
  • “Comparative Law Forum,” speaker, Shell Global Litigation Conference, New Orleans, Louisiana, September 19, 2013.
  • “Potential Obstacles to Natural Gas Development,” program co-developer and moderator, The General Counsel Forum, Houston Chapter 2nd Quarterly Event, Houston, Texas, April 17, 2013.
  • "American Law and Jurisprudence on Fracing," co-presenter with Andy Weissman, United States Energy Association Policy Series, Membership Briefing, Washington, D.C., January 30, 2013.
  • "In-House from the Inside," conference co-chair, Corporate Counsel Institute, Suffolk University Law School, Boston, Massachusetts, September 14, 2012.
  • "Too Much at Stake to Shut Down Fracing," Oil & Gas Financial Journal, August 10, 2012.
  • "Hydraulic Fracturing Litigation," 58th Annual Rocky Mountain Mineral Law Institute, July 19-21, 2012, Newport Beach, California.
  • "Non-Technical Risks in Projects and Other Developments," program developer and moderator, The General Counsel Forum, Houston Chapter 3rd Quarterly Event, June 20, 2012, Houston, Texas.
  • "An Analysis of Fracking Developments," panelist, Haynes and Boone Webinar, March 8, 2012.
  • "Changing Times Bring Conflict With Surface Owners," The American Oil and Gas Reporter, December 6, 2011.
  • "Recent Litigation Related to Oil and Gas Drilling," Better Than Barnett: New Developments in the Legal and Regulatory Issues in the Eagle Ford Shale, October 18, 2011, Houston, Texas.
  • "Oilfield Litigation: 'How the Grinch Stole Christmas,'" 23rd Annual Texas Environmental Superconference, August 4-5, 2011, Austin, Texas.
  • "American Law and Jurisprudence on Fracing," with Thomas Kurth, Mary Mendoza, and Christopher Kulander, Rocky Mountain Mineral Law Foundation Journal,Vol. 47, No. 2, 2010.
  • "Hydraulic Fracturing – The Legal Issues," Texas Environmental Law Journal’s First Annual Symposium: The Legal and Environmental Impacts of Extracting Gas from Shale, October 29, 2010, Austin, Texas.
  • "Hydraulic Fracturing - The Legal Issues," 3rd Annual Unconventional Gas International Conference, October 5-7, 2010, Fort Worth, Texas.
  • "Current Operating Regulations and Future Trends," ALM’s 9th Annual Gas Shales Summit, June 2-3, 2010, Houston, Texas.
  • "Assessing the Claims Asserted in the Global Warming Debate," presented to the Emerson Unitarian Universalist Church, January 10, 2010.

Professional Recognition

  • Recognized by Chambers USA by Chambers & Partners as a leading lawyer for Environment (Texas), 2015
  • Recognized in The Best Lawyer in America by Woodward/White, Inc. in Commercial Litigation, 2015
  • Recognized in Texas Super Lawyers by Thomson Reuters for Civil Litigation Defense, 2009-2014
  • Martindale Hubbell® Law Directory with a Peer Review Rating of AV® Preeminent™

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