
- 54+
- Years practicing
- 5.0 ★
- 1 client review
- 1
- Bar admission
Practices in
Are you Jack O'Neill?
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Quick answer
Jack O'Neill is a partner based in Houston, TX. The practice focuses on Business and Litigation. Jack has over 54 years of legal experience. Currently practicing at Pierce & O'Neill, LLP. Rated 5.0 out of 5 from 1 client review.
- Based in
- Houston, TX
- Experience
- over 54 years
- Known for
- Business · Litigation
- Handles Business and Litigation matters from Houston, TX.
- Over 54 years of practice as a licensed attorney.
- Recognized with AV Preeminent.
About Jack O'Neill: Jack O'Neill is a partner based in Houston, TX. The practice focuses on Business and Litigation. Jack has over 54 years of legal experience. Currently practicing at Pierce & O'Neill, LLP. Rated 5.0 out of 5 from 1 client review.
Areas of practice
Practice focus
Jack O'Neill represents clients in Houston, Texas across the following areas of law. Each area links to other verified attorneys with the same focus.
Biography
About Jack O'Neill
Jack O'Neill has been trying large complex cases for over 42 years. His experience in the courtroom involves many cases that have been widely publicized. Mr. O'Neill was co-trial counsel for UPR, Inc. in its attempted takeover of Pennzoil. He was lead counsel for Mitchell Energy Corporation in the company's effort to overturn a $204 million judgment rendered against the company in a case tried for the company by another law firm. On appeal, argued by Mr. O'Neill, the case was reversed in its entirety and judgment was rendered in favor of Mitchell. He was lead trial counsel for Mitchell Energy in a related case in which plaintiffs sought $750 million for alleged contamination of their properties by natural gas and hydrogen sulfide. After a three-month trial, the jury rendered a unanimous verdict in favor of Mitchell. He was lead trial counsel for plaintiffs in the highly publicized Key 1-11 gas well blowout case in the Texas Panhandle, the largest blowout of a gas well in continental United States history. After a trial lasting over two and a half months, the jury returned one of the largest verdicts in Randall County, Texas history in favor of Mr. O'Neill's clients. He was lead trial counsel for a well-known Houston oil and gas company in a fraud case in which the plaintiff sought damages in excess of $100 million. After a two-month trial, the jury returned a verdict for Mr. O'Neill's client, and a take-nothing judgment was entered by the trial court. Mr. O'Neill has successfully tried many other cases relating to virtually all aspects of the oil and gas industry.
Mr. O'Neill's trial experience is not confined to oil and gas matters. He successfully defended GE in the "Desert Storm" Ramstein Air Base C-5A crash litigation. As co-counsel, he successfully defended GE in the trial court and before the Fifth Circuit and the United States Supreme Court in the U.S.S. Stark litigation, emanating out of the attack on the Stark in the Persian Gulf by an Iraqi fighter jet. He successfully defended Eastman Kodak Company in its mini-lab class action case, involving alleged damages of $3 billion. Mr. O'Neill was lead counsel for plaintiffs in a suit against an American subsidiary of a foreign trading company for employment discrimination against American citizens, which established in the district court and United States Supreme Court that American subsidiaries of foreign companies are not immune from United States fair employment laws. He has obtained a multimillion-dollar jury verdict for an equipment manufacturer in an unfair competition and theft of trade secrets case. As lead trial counsel, he successfully defended McKesson Corporation by obtaining a unanimous jury verdict in a trademark infringement trial in which the plaintiff sought damages in excess of $1 billion. As lead arbitration counsel, he successfully procured a unanimous arbitration opinion in favor of Weatherford International, Inc., granting Weatherford specific performance of a contract to convey computer software, denying in its entirety the defendant's counterclaim of over $100 million, and awarding Weatherford its attorney fees and expenses. He has also successfully defended a toy manufacturer in a trademark infringement trial. He has successfully defended a former United States Senator in litigation filed against a major United States company and its directors.
Mr. O'Neill has won numerous jury verdicts in cases involving allegations of breach of contract, negligence and gross negligence, trademark infringement, unfair competition, fraud, environmental contamination and strict liability. Over the years, his clients have included Exxon Mobil Corporation, UNOCAL, Koch Industries, Stewart & Stevenson Services, The Williams Companies, GE, Eastman Kodak Company, INVISTA, Anadarko Petroleum Corporation, The John Wood Group, CNA, Transcontinental Gas Pipe Line Corporation, Mitchell Energy & Development Corp., Devon Energy Corporation, McKesson Corporation, Weatherford International and many other Fortune 500 companies.
Mr. O'Neill is a former director of the Litigation Section of the State Bar of Texas. He is a member of the American Board of Trial Advocates. He is also a member of the International Association of Defense Counsel.
PUBLICATIONS
"Legal Consequences and Ethical Implications of Physical Evidence Spoliation," Institute for Energy Law of the Center for American and International Law, 9th Annual Energy Litigation Conference, October 12, 2010; Jack O'Neill & Byron C. Keeling "Valuation of Oil Royalties: From the Perspective of the Payor," 47 Institute on Oil and Gas Law 7 Taxing 6-1, Matthew Bender, 1996; Jack O'Neill & Byron C. Keeling "Damages," 14 The Advocate 362, 1995; Jack O'Neill and David Bissinger "Injunctive and Monetary Relief in Class Actions in the Fifth Circuit," State Bar of Texas Antitrust Business Litigation Section Report, April, 2002.
Credentials
Education
University of Texas School of Law
J.D. · 1972
University of Pennsylvania
B.A. · 1969
Jurisdictions
Bar admissions
Texas U.S. Supreme C
1972 · ACTIVE
Recognition
Awards & honors
AV Preeminent
Affiliations
Professional memberships
American Board of Trial Advocates International Association of Defense Counsel State Bar of Texas
Director, Section of Litigation, 1998-2000) Houston Young Lawyers Association (Director, 1978-1979 · membership
Texas Bar Foundation
bar_fellowship
Locations
Office locations
Client feedback
What clients say about Jack O'Neill
5.0
1 client review
Client ratings are sourced from public records and editorial research. Reviews on LawyersListed are accepted from verified clients once Jack O'Neill claims this profile.
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Common questions
What areas of law does Jack O'Neill practice?
Jack O'Neill focuses on Business and Litigation.
Where is Jack O'Neill located?
Jack O'Neill primarily serves clients in Houston, Texas, with an office at 4203 Montrose Boulevard.
How experienced is Jack O'Neill?
Jack O'Neill has 54 years of legal practice, having been licensed since 1972.
Is Jack O'Neill a verified attorney?
Jack O'Neill's profile is listed but has not yet been claimed by the attorney. Verification status is pending.
How can I schedule a consultation with Jack O'Neill?
You can book a consultation through LawyersListed directly from this page. Initial outreach can also be made by phone at 346-321-4862.





