Natural Gas futures often follow seasonal trends. Gas is used to heat homes, so naturally a particularly cold winter can increase demand. Spring and summer months can see deamnd fall due to warmer weather. Natural Gas price is also affected by over and under supply. Recently in the USA there has been a huge boom of shale Gas producers, which has halped push the price to record lows. However, the world will always be in demand of Gas as an energy source, until a more efficient and cleaner fuel becomes the norm.