At Holden Litigation
We Play To Win
At Holden Litigation
We Play To Win
At Holden Litigation
We Play To Win
Headshot of Mark E. Dreyer

Mark E. Dreyer

Location: Tulsa


Practice Areas

  • Personal Injury
  • Products Liability
  • Oil & Gas Industry Injury Claims
  • Consumer Product Safety Commission Disputes
  • Insurance Coverages
  • Catastrophic Damages Litigation


Mark received his Bachelors degree in Mathematics and Political Science from Washington University in St. Louis, Missouri. In 1988, Mark graduated with his Juris Doctorate from the University of Tulsa College of Law.

After three years of practice in North Carolina, Mark began working for Lipe & Green, a highly regarded boutique litigation firm that later merged with Conner Winters, one of the largest law firms in Oklahoma. For nearly three decades, Mark honed his skills, became a partner, and earned a reputation for his exceptional litigation acumen. During his tenure, Mark worked on a diverse range of litigation such as propane explosions across the country, products liability, oil & gas industry injury claims, Consumer Product Safety Commission disputes, insurance coverages and catastrophic damages litigation.

Next, Mark became the Lead Counsel - Tort Litigation for Walmart where he managed serious personal injury claims in Florida, Alabama and Georgia.

Over the course of his career, Mark has been admitted pro hac vice in nearly half of the country’s state courts. Mark has also been recognized for many years by Best Lawyers, Super Lawyers, and Benchmark Litigation.

Mark’s influence and interests extend beyond the courtroom; he is an author, contributing articles to reputable legal publications. His written work reflects his commitment to stay at the forefront of legal developments.

Mark is married and has two daughters. In his free time, he relentlessly pursues a quest for perfect barbeque.


  • University of Tulsa College of Law, Tulsa, Oklahoma
    • J.D. - 1988
  • Washington University, St. Louis
    • B.A. - 1985

Bar Admissions

  • Oklahoma
  • U.S. District Court Middle District of North Carolina
  • U.S. District Court Eastern District of Oklahoma
  • U.S. District Court Northern District of Oklahoma
  • U.S. District Court Western District of Oklahoma
  • U.S. Court of Appeals 3rd Circuit
  • U.S. Court of Appeals 10th Circuit
  • U.S. Court of Appeals 11th Circuit

Professional Associations

  • Tulsa County Bar Association
  • Oklahoma Bar Association
  • American Bar Association
  • Propane Gas Defense Association
  • University of Tulsa College of Law Alumni Association Board of Directors Outstanding Committee Chair, 2000; Treasurer, 2001; Vice President, 2002; President-Elect, 2003-2004; President, 2004-2005


  • American Jurisprudence Award, Commercial Law
  • Tulsa Law Journal Notes & Comments Editor 1987 - 1988 and Member 1986 – 1987
  • University of Tulsa College of Law Honor Roll
  • Parent and Child Center Board of Directors
  • Fellow, Litigation Counsel of America
  • Listed in Best Lawyers in America (Commercial Litigation) (2010-2020)
  • Recognized in Oklahoma Super Lawyers
  • Recognized for multiple years as a Local Litigation Star in the Commercial and Insurance categories in Benchmark Litigation
  • University of Tulsa College of Law, Exemplary Services Award, 2001
  • University of Tulsa College of Law, Presidential Service Award, 2005

Published Works

  • Propane and the Law: Overfilling in the OPD Age SCPGA News, 09.24.2019
  • 59 Conner & Winters Attorneys Recognized by Best Lawyers in America, 08.16.2019
  • Understand Liabilities with Underground Tanks - article by Mark E. Dreyer Iowa Propane Gas News, 08.12.2019
  • Putative Class Action Could Require That Gas Retailer Provide Gas Detectors South Carolina Propane Gas Association News, 07.2019
  • Attorney Mark Dreyer shares Training and Telltales Alabama Propane Gas Association, 06.26.2019
  • Mark Dreyer and Isaac Ellis Win Favorable Decision for JP Energy Law360
  • Author of Constitutional Problems with Statutes Regulating Ballot Position, 23 Tulsa Law Journal 123 (1987), reprinted in Parliamentary Journal Vol. XXX No. 4 (October 1989), cited in Morse v. Republican Party of Virginia, 517 U.S. 186 (1996), Green Party of Tennessee v. Hargett, 953 F. Supp. 2d 816 (M.D. Tenn. 2013), and New Alliance Party v. New York State Board of Elections, 861 F. Supp. 282 (S.D.N.Y. 1994)