Dan Sullivan
Chief Executive Officer / Director of Investments
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
Michael Kiefner
Assistant General Manager of Land and Property Management
Michael Kiefner
- Juris Doctorate, Oklahoma City University
- Oklahoma State Senate Staff Attorney (1994-’04)
- Former General Counsel to large Oklahoma-based financial institution
- Joined GRDA in 2004
Ellen Edwards
General Counsel
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
Charles Barney
Assistant General Manager of Thermal & Hydro Generation
Charles Barney
- Master’s of Science, Mechanical Engineering
- Registered Professional Engineer, state of Oklahoma
- Joined GRDA in 1988
Carolyn Dougherty, CPA
Chief Financial Officer/Treasurer
Carolyn Dougherty
- Bachelor’s of Science in Accounting, Oklahoma State University
- 18 years with GRDA as special projects director for GM
- Former Senior Emerging Business Consultant with Deloitte, Haskins and Sells (1983-1986)
- Joined GRDA in 1986
Mike Herron
Assistant General Manager of Engineering, System Operations and Reliability
Mike Herron
- Registered Professional Engineer
- Bachelor’s of Science in Electrical Engineering, University of Missouri (Rolla)
- Nearly four decades experience in electric utility industry
- Joined GRDA in 2004
Dale Willis
Assistant General Manager of Transmission
Dale Wilis
Dr. Darrell Townsend
Assistant General Manager
Ecosystems & Lake Management
Dr. Darrell Townsend
- Ph.D in Rangeland and Wildlife Ecology, bachelors and masters degrees in Ecology, Oklahoma State University
- Adjunct professor in the Department of Zoology (Oklahoma State University) and formerly Math and Biological Sciences Department (Tulsa Community College)
- Research has appeared in several peer-reviewed scientific publications
- Joined GRDA in 2004
Allison Carter
Assistant General Manager-Human Resources
Allison Carter
- Bachelor’s of Science in Human Environmental Sciences, Oklahoma State University
- Master’s of Human Relations, University of Oklahoma
- Phi Kappa Phi Honor Society (University of Oklahoma)
- Joined GRDA in 2006
Brian Edwards
Assistant General Manager
Chief of Law Enforcement and Homeland Security
Brian Edwards
- 30-plus years in law enforcement
- Bachelor, 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
Justin Alberty
Corporate Communications Director
Justin Alberty
- Joined GRDA in 1994
- Bachelors in Journalism and Broadcasting, Oklahoma State University
- Green Country Marketing Association Board of Directors