Energy markets are continuously influenced by various factors. For instance, growth in energy demand due to economic developments. But fiscal and monetary policies and exchange rates can also have an impact. The supply of energy resources can change suddenly and unexpectedly. Maintenance, weather conditions, import and export capacity, (un)planned changes in production capacity and other factors can cause major price fluctuations. (Geo)political aspects also affect energy prices periodically. Finally, trading strategies, including arbitrage in time and place and market speculation, also play a determining role in the pricing of various energy sources. These market drivers are different every day and vary continuously from one energy source to another.