The price of natural gas has changed significantly over the last forty years reflecting its volatility or instability. The average annual prices for the residential, commercial, and industrial sectors mimicked each other's movements and kept a steady price spread. From 2011 to 2012, the price of natural gas in the electric power sector decreased $1.79 or 32 percent, the industrial sector price decreased $1.25 or 23 percent, the commercial sector price decreased 53 cents or 8 percent, and the residential sector decreased 21 cents or 3 percent.
In 2012, the residential sector paid the highest price out of all the sectors at $8.30 per billion cubic feet. The commercial sector's price was the next highest at $5.92, the industrial sector's price was $4.15 per billion cubic feet, and the electric power sector's price was $3.75.
The prices are in nominal dollars to provide a better comparison.