Isaac Ellis’s practice focuses on litigation and corporate 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 disputes involving commercial matters, employment and labor, energy, class action defense, and other business and complex litigation. His practice is also devoted to internal investigations for corporate clients, including personnel-related matters, regulatory compliance, and whistleblower complaints.

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. 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.


  • 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 

Honors & Leadership

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

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


Alerts & Publications



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


University of Oklahoma, J.D., with honors, 2010

Southeastern Oklahoma State University, B.A., 2007


  • Oklahoma 
  • U.S. District Court, N.D. of Oklahoma 
  • U.S. District Court, W.D. of Oklahoma 
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