Wyoming Public Service Commission


Chairman Mary Throne

Governor Gordon appointed Mary Throne to the Commission, effective March 1, 2019. Mary received a Bachelor of Arts Degree in History from Princeton University in 1982 and her Juris Doctor Degree in 1988 from Columbia Law School. She clerked for the Honorable Reena Raggi in the United States District Court for the Eastern District of New York, before beginning her legal career with a Denver firm. Mary, a Campbell County native, returned to Wyoming in 1992. Mary has years of experience in the natural resource field. She has represented the Wyoming Department of Environmental Quality, Air Quality Division in the Office of the Attorney General and in private practice, she has assisted a variety of energy, mineral and business clients with environmental compliance and permitting, industrial siting, and other regulatory issues.  For ten years, Mary represented Cheyenne in the Wyoming House of Representatives, serving as Minority Floor Leader for four years. Working in a bipartisan fashion, she played a key role in developing Wyoming’s landmark carbon capture and sequestration laws. Mary and her husband, Kevin Boyce, live in Cheyenne and have 3 sons, Michael, Tarver, and Patrick.

Term Expires March 1, 2027

Deputy Chairman Chris Petrie

Governor Gordon appointed Chris Petrie to the Public Service Commission effective February 1, 2021. Petrie received a B. A. from the University of Wyoming in political economy (‘90) and a J. D. from the University of Wyoming College of Law (‘93). He has served  in various positions at the PSC since 2002.   

Term Expires March 1, 2025

Commissioner Mike Robinson

Governor Gordon appointed Mike Robinson to the Public Service Commission effective March 1, 2019. Mike received a Bachelor of Arts degree from Michigan State University in political science (1990) and a Juris Doctorate from the University of Wyoming College of Law (1993). Mike began his legal career as the law clerk for Wyoming Supreme Court Justice G. Joseph Cardine and, after his retirement, Larry L. Lehman. From 1996-1998, Mike worked as a staff attorney for the Wyoming Public Service Commission. He returned to the Wyoming Supreme Court to be a permanent clerk for the Honorable William U. Hill. In 2007, Mike went to the Wyoming Attorney General’s Office where he worked in the Civil Division representing a diverse agency clientele, including the Public Service Commission, the Secretary of State, State Auditor, and the Business Council. In 2016, Mike moved to the Water and Natural Resources Division where he represented the State of Wyoming in federal environmental litigation. Mike lives in Cheyenne and spends as much time as he can with his teenage sons, Tyler and Travis.

Term Expires March 1, 2029

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