Board of Directors

John Rupe
Tulsa, Commercial Development, Construction
Chairman, Appointed by the Governor of Oklahoma
Term: 9/1/23 – 8/29/28
Committees: Audit, Finance, Budget, Policy & Compliance; Compensation & Marketing

Paul Matthews
Edmond, Plumbing, Utilities, Real Estate
Appointed by Oklahoma Senate President Pro Tempore At-large Director
Term: 8/30/22 – 8/29/27
Committees: Assets; Compensation & Marketing; Power Capacity Utilization Subcommittee

Jared Crisp
Pryor, Municipal Utilities
Representative of the Municipal Electric Systems of Oklahoma (MESO)
Term: 2/12/25 – n/a
Committees: Audit, Finance, Budget, Policy & Compliance; Fuel & Long-Range Planning

Jeff Stava
Tulsa, Community Development, Business Recruitment
Appointed by the Governor of Oklahoma
Term: 10/14/25 – 10/13/30
Committees: Assets; Fuel & Long‐Range Planning

Charles Sublett
Tulsa, Attorney
Chair-elect, Appointed by the Governor of Oklahoma
Term: 8/30/24 – 8/29/29
Committees: Audit, Finance, Budget, Policy & Compliance

Tom Kimball
Owasso, Economic Development, Retail, Banking
Appointed by Oklahoma Speaker of the House
Term: 10/11/23 – 8/31/26
Committees: Assets; Compensation & Marketing

Nicki Fuller
Owasso, General Manager, Oklahoma Association of Electric Cooperatives
Representative of the Oklahoma Association of Electric Cooperatives (OAEC)
Term: 5/1/25 – n/a
Committees: Fuel & Long‐Range Planning
GRDA is governed by a seven-member board of directors comprised of representatives from each GRDA customer class – municipals, electric cooperatives and industrials – as well as the GRDA lakes area. Senate confirmation is not required.
Two at-large representatives also sit on the board. Board members serve staggered, five-year terms, with one position opening each year, to ensure continuity.
GRDA is a policy driven organization. Directors utilize an active committee structure to make the most effective decisions and set the appropriate tone from the top.
Executive Management

Dan Sullivan
President/Chief Executive Officer

Tim Brown
Chief Operating Officer

Brian Edwards
Executive Vice President/Chief of Law Enforcement & Lake Operations

Heath Lofton
General Counsel

Nathan Reese
Executive Vice President/External Relations

Erik Feighner
Chief Financial Officer

Laura D. Hunter
Executive Vice President/
Chief Administrative Officer

John Wiscaver
Executive Vice President/
Strategic Communications

Sheila Allen
Executive Assistant to the Chief Executive Officer
Corporate Secretary
Senior Management

Tony Dionisio
Chief Information Officer

Steve Jacoby
Vice President Generation Engineering/Support

Robert Ladd
Vice President Generation Operations

Darrell Townsend, PhD
Vice President Ecosystems & Watershed Management

Jeff Tullis
Vice President T&D Engineering & Operations

Stace Kegley
Manager of Compliance

Jeff Brown
Director of Financial Compliance