Kevin J. McIntyre, who chaired the Federal Energy Regulatory Commission and last year rejected a Trump administration proposal to aid coal and nuclear plants, died Jan. 2 2018 at his home in Arlington, Va. He was 58. The cause was brain cancer, his family said. Kevin Joseph McIntyre was born on Dec. 27, 1960, at Dover Air Force Base in Delaware and moved frequently along with his father’s assignments in the military. Survivors include his wife, Jennifer Brosnahan McIntyre, and their three young children, Elizabeth, Thomas and Anna, all of Arlington; his parents, Jack and Alice McIntyre of McLean, Va.; and four siblings. Mr. McIntyre was the co-leader of the global Energy Practice at the law firm Jones Day, where he has practiced law for most of his nearly 30-year legal career. A graduate of San Diego State University and Georgetown Law, Mr. McIntyre is a recognized leader in the United States energy regulatory arena, with an expansive Federal Energy Regulatory Commission practice representing clients in all industry sectors—natural gas, conventional electricity, oil, hydropower, wind power and other renewable resources, and energy marketing and trading. His work for energy clients spans administrative and appellate litigation, compliance and enforcement matters, and corporate transactions. Mr. McIntyre is active in energy industry, legal, and educational organizations, as well as in his local community. He lives in Arlington, Virginia, with his wife Jennifer and their three young children.