Energy Statistics are compiled on the basis of the data collected under the standard collection cycles as directed by Eurostat. The monthly data consists of crude oil, oil products, solid fuels and electricity, covering mainly the supply side. Besides this, annual data on oil products, electricity, and renewable covering the full spectrum of the energy balances positions from supply through transformation to final energy consumption by sector and fuel type. Both the monthly and annual data are collected from administrative sources. Data is compiled and disseminated through three (3) annual questionnaires (Joint Eurostat/IEA/UNECE questionnaires) and six (6) monthly questionnaires (four Eurostat questionnaires and two questionnaires common with other international organisations).