E:
Energy Information Administration (EIA) - Provides policy-independent data, forecasts, and analyses regarding energy and its interaction with the economy and the environment [Department of Energy (DOE)]

O:
Oil Shale and Other Unconventional Fuels Activities - Includes recommendations to advance the commercialization of U.S. strategic unconventional fuel resources, including oil shale. [Department of Energy (DOE), Energy Information Administration (EIA)]

P:
Production Input Industries - Key Topic (ERS) - Covers information on pesticides, fertilizers, machinery, energy, seed, and biotechnology products, all of which are agricultural production inputs. [Department of Agriculture (USDA), Economic Research Service (ERS)]

R:
Record Group 434: General Records of the Department of Energy, 1915 - 2003 - National Archives' Archival Research Catalog description for Record Group 434: General Records of the Department of Energy, 1915 - 2003 [National Archives and Records Administration (NARA)]

U:
U.S. Agency for International Development's Environment - Descriptions of USAID's environmental programs on biodiversity, biotechnology, climate change, energy, forestry, land management, pollution prevention, and water programs. [Ad Hoc Organizations, United States Agency for International Development (USAID)]