Isaac R. Ellis

  • Partner at Conner & Winters, LLP (116 Attorneys)
  • 4000 One Williams Center, Tulsa, OK 74172
    View Isaac R. Ellis's office location
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    • #128 in weekly profile views out of 3,573 Attorneys in Tulsa, OK
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Isaac Ellis’s practice focuses on litigation and internal investigations. Mr. Ellis has represented clients in both trial and appellate litigation matters and has served as trial counsel in jury and non-jury trials in state and federal court. He has wide-ranging experience in cases involving commercial matters, business disputes, energy, class action defense, zoning and real estate, and other complex litigation. His practice is also devoted to internal investigations for corporate clients, including whistleblower complaints, personnel-related matters, and regulatory compliance.

Prior to joining the firm, Mr. Ellis served a two-year term as Judicial Law Clerk to the Honorable John E. Dowdell, United States District Judge for the Northern District of Oklahoma. Since that time, Mr. Ellis has remained heavily involved in both federal litigation and the federal bar. He currently serves as a member of Northern District of Oklahoma Local Rules Committee and Civil Rules Subcommittee and is Treasurer of the Northern and Eastern Oklahoma Chapter of the Federal Bar Association. Mr. Ellis also serves on the Younger Lawyers in Court Task Force for the Federal Bar Association’s national organization.

Mr. Ellis received his Juris Doctor degree with honors from the University of Oklahoma, where he was selected for membership in the Order of the Coif and Order of the Barristers and received a number of awards while participating in advocacy competitions.


•Mark Dreyer and Isaac Ellis Win Favorable Decision for JP Energy
Law360, 03.07.2018
•Isaac Ellis Appointed by Court to Advisory Committee and Local Civil Rules Subcommittee
•Conner & Winters Names Three New Partners

Alerts & Publications

•Client Alert: Appellate Court Curbs FTC's Authority to Regulate Corporate Data Security Programs


•Judicial Law Clerk to the Honorable John E. Dowdell, United States District Judge for the Northern District of Oklahoma

Honors & Recognitions

Federal Judicial Clerkship, Hon. John E. Dowdell, Northern District of Oklahoma

Oklahoma SuperLawyers Rising Star

Articles Editor, American Indian Law Review

Order of the Coif

Order of the Barristers

Phi Delta Phi International Legal Fraternity

Areas of Practice (11)

  • Appellate Litigation
  • Class Actions
  • Commercial Litigation
  • Employee Concern Resolution and Whistleblower Defense
  • Employment Litigation and Counseling
  • Energy
  • Labor and Employment
  • Litigation
  • Litigation and Alternative Dispute Resolution
  • Insurance
  • Medical Cannabis

Education & Credentials

Contact Information:
918.586.8996  Phone
918.586.8322  Fax
University Attended:
Southeastern Oklahoma State University, B.A., 2007
Law School Attended:
University of Oklahoma, J.D., Honors, 2010
Year of First Admission:
U.S. District Court, N.D. of Oklahoma; Oklahoma; U.S. District Court, W.D. of Oklahoma

Community & Professional

Tulsa Library Trust - Board of Directors

Tulsa Bike Share - Board of Directors

Treasurer and Board Member - Federal Bar Association - Northern and Eastern Oklahoma Chapter

Northern District of Oklahoma Local Rules Committee and Civil Rules Subcommittee Member

Member of the Conner & Winters Business Development and Recruitment Committees

American Bar Association

Tulsa County Bar Association

Philbrook Young Masters Society

Reported Cases:
Experience: Served as co-counsel in federal jury trial involving employment claims by former company executive claiming wrongful termination; Served as lead trial counsel in non-jury trial of unjust enrichment claim involving real estate dispute; Represented client in declaratory judgment action regarding insurance coverage in effort to secure $22 million in additional coverage; Investigated whistleblower complaint alleging federal regulatory and safety violations in large scale construction project; Investigated whistleblower complaint alleging large-scale falsification of accounting data and K-1 information; Investigated allegation of misrepresentations made to federal regulatory entity involving employees altering test units prior to regulatory inspection

Peer Reviews

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Tulsa, Oklahoma

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