Energy Information Administration
Official energy statistics from the U.S. government. The EIA, within the Department of Energy, provides data on all energy resources and related topics – petroleum, natural gas, electricity, coal, nuclear, renewable and alternative fuels. EIA also compiles information on international energy resources, provides forecasts and analyses, state and U.S. historical data, energy uses, greenhouse gases, and more energy-related data. Gasoline and diesel fuel prices are tracked weekly.