The Office of the Under Secretary for Economic Growth, Energy, and the Environment oversees the Department’s efforts to design and implement policies and better promote U.S. interests around the world in the interconnected areas of economic growth, global energy security, and environmental policy. The Office of the Under Secretary supervises the Bureau of Oceans and International Environmental and Scientific Affairs (OES), the Bureau of Economic and Business Affairs (EB), the Bureau of Energy Resources (ENR), the Office of the Science and Technology Adviser to the Secretary (STAS), and the Office of the Chief Economist (OCE).