Management Team

Dan Sullivan
President/Chief Executive Officer

Dan Sullivan

Dan Sullivan

  • Juris Doctorate, University of Tulsa College of Law
  • Bachelor’s of Science in Business Administration, Northeastern State University
  • Oklahoma State Representative (District 71), 2004 – 2011
  • Of Counsel, Pierce Couch, Hendrickson, Baysinger & Green LLP, 2005 – 2011
  • Joined GRDA in 2011

Tim Brown
Chief Operating Officer

Tim Brown

  • Bachelor’s of Science in Mechanical Engineering, University of Maine
  • Registered Professional Engineer
  • Background in T&D Operations, Rates, Power Supply and Financial Planning
  • Joined GRDA in 2011

Heath Lofton
General Counsel

Heath Lofton

  • Juris Doctorate, University of Oklahoma
  • Bachelor’s of Science in Accounting, Oklahoma State University
  • Joined GRDA in 2011

John Goodwin
Executive Vice President/Human Resources

John Goodwin

  • Bachelor’s of Science in Public Admin, University of Arizona
  • Professional certification Senior Professional Human Resources
  • Joined GRDA in 2014

Brian Edwards
Executive Vice President/Chief of Law Enforcement

Brian Edwards

  • 30-plus years in law enforcement
  • Bachelor’s in Criminal Justice/Corrections, Langston University 1995
  • MBA, Oklahoma City University, 2003
  • Served eight years as Tulsa County Under-Sheriff
  • Graduate of 219th Section of Federal Bureau of Investigation National Academy
  • Joined GRDA in 2012

Ellen Edwards
Executive Vice President of Compliance

Ellen Edwards

  •  Juris Doctorate, University of Oklahoma College Of Law
  •  Bachelor’s of Science in Political Science, Colorado College
  •  Former member of the Oklahoma Workers Compensation Advisory Council
  •  Former Oklahoma Workers Compensation Court Judge (1996-2008)
  • Joined GRDA in 2011

Eddie Rothermel, CPA
Chief Financial Officer/Corporate Treasurer

Eddie Rothermel

  • Previously served 15 years with the Oklahoma State Auditor and Inspector
  • Certified Public Accountant (CPA), Certified Fraud Examiner, Certified Procurement Officer with the State of Oklahoma
  • B.S. in Accounting from the University of Central Oklahoma (UCO, Edmond)
  • Joined GRDA in 2005

Steve Wall
Chief Information Officer

Steve Wall

Steve Wall

  • Information coming soon…

John Wiscaver
Executive Vice President of Corporate & Strategic Communications

Robert Ladd

John Wiscaver

  • Bachelor’s of Science, Communications and Marketing, Eastern Illinois University
  • 25+ years experience in public relations/media/marketing/crisis management
  • Joined GRDA in 2016