Mark Oium

Contact Mark Oium:
Tel: 415-392-8300 ext 103
Fax: 415-421-1254
E-mail VCard

Mr. Oium is one of the founding partners of Oium Reyen & Pryor. With over 30 years of trial and litigation experience, Mr. Oium has developed expertise in the analysis and resolution of a wide variety of civil litigation including products liability, industrial chemicals, pesticide and herbicide cases, groundwater pollution and remediation, elevator and escalator accidents, premises liability, medical malpractice, medical board accusations and will and trust litigation.

Mr. Oium’s trial experience includes unique and groundbreaking cases.  He was the lead trial attorney for a pesticide formulator in Fresno accused of polluting the groundwater and causing local residents to develop illness and disease. The first trial in this matter lasted four months and all defendants obtained defense verdicts.

In the early 1990s, Mr. Oium was asked to represent a traffic radar manufacturer who had been sued in several federal district courts by plaintiffs who alleged that they developed cancer as a result of exposure to police traffic radar devices. Mr. Oium was selected as the national coordinating counsel for these cases. In 1993, Mr. Oium obtained a defense verdict in the first trial of this matter in the Northern District Court of California in San Francisco. As a result, all the other pending cases were dismissed either voluntarily or as a result of successful motions for summary judgment.

Mr. Oium’s extensive trial experience and the respect of his peers led to an invitation in 2000 to become a member of the prestigious American Board of Trial Advocates.  Mr. Oium is also a member of the American Bar Association, the Defense Research Institute, and the Association of Defense Counsel of Northern California.

In addition to his trial experience, Mr. Oium has also developed expertise in mediations and arbitrations, both privately and for the San Francisco Superior Court.  He has been an arbitrator and mediator for the San Francisco Superior Court system for the last 10 years.

Mr. Oium’s hobbies and interests include membership in San Francisco’s Olympic Club, San Francisco’s Lawyers Friends of Wine, and the Harding Park Golf Club.  His hobbies include gardening, tennis, golf, cooking, and supporting the Bay Area’s sports teams.  He and his wife Kathy have two daughters, Dana and Kelsey.


University of Minnesota, B.A. in History and Criminology, Cum Laude, 1974

University of San Francisco School of Law, J.D., 1977