Energy Information AdministrationFossil fuels (petroleum, natural gas, coal), nuclear power, and renewable resources make up the energy production portfolio of the United States, and the EIA keeps track of them all from extraction to consumption at the state and national level, as well as international indicators. In addition to sources of energy, EIA tracks energy usage, source stocks, and prices. EIA also provides information on side effects of energy use (emissions and waste) and offers access to industry reporting information.