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Stephanie Zapata Moore

Executive Vice President/General Counsel

Vistra Energy


As executive vice president and general counsel of Vistra Energy, Moore advises the company’s leadership team on legal, regulatory and corporate governance matters, in addition to overseeing the corporate secretary’s office and leading the company’s legal and compliance team.
Prior to her current role, Moore served as vice president and general counsel of Luminant, a competitive power generation subsidiary of Vistra Energy and its predecessor Energy Future Holdings. Moore’s primary responsibilities included coordination and delivery of all legal services for Luminant, including commercial matters, litigation, environmental advocacy, and regulatory compliance and counseling. In addition, she worked closely with other senior leaders to develop and implement the company’s strategy for addressing numerous environmental, permitting and other regulatory matters, including comments on proposed rulemakings, advocacy before relevant regulatory agencies, and representing the company’s position in litigation and administrative proceedings. She also oversaw contract administration and Luminant’s compliance program.
Prior to joining Luminant in 2005, Moore was an associate at Gardere Wynne Sewell LLP in the corporate and securities practice group, where she focused on mergers and acquisitions and private securities offerings. She also spent a year in the trial practice group at Gardere, where she represented clients in commercial litigation matters.
Moore received her undergraduate degree in English from Duke University and her law degree from William & Mary School of Law.