From the Introduction: "The U.S. Energy Information Administration (EIA) is the lead federal agency for collecting, analyzing, and disseminating energy information. According to one industry leader who has been critical of EIA, 'The EIA forecast is very important…. It moves markets, and it impacts our industry greatly…. Right or wrong, no other agency provides data with greater impact.' [...] EIA collects data and provides projections on most forms of commercially used energy, including oil and petroleum products, natural gas, natural gas liquids, coal, electricity, renewables, alternative fuels, nuclear, biofuels, and others. The level of detail of collected data and analysis, however, are not evenly distributed. This report provides an overview of the history and major functions of EIA, with an emphasis on how EIA information can be used by Members of Congress."
CRS Report for Congress, R46524
Congressional Research Service: https://crsreports.congress.gov/