Mary Burce Warlick is the Deputy Executive Director of the International Energy Agency (IEA). A retired career diplomat and former U.S. Ambassador to Serbia, Ms. Warlick has held a variety of senior leadership positions at the U.S. Department of State, National Security Council and Department of Defense, serving in Washington and abroad. From 2014-2017 she served as the State Department’s Principal Deputy and Acting Special Envoy for International Energy Affairs and represented the U.S. on the IEA Governing Board. Ms. Warlick holds a B.A. in Political Science and an M.A. in Law and Diplomacy.