Notes: An archive is available. A forecast of Henry Hub prices to the year 2040 is available in the Total Energy Supply, Disposition, and Price Summary. To obtain the price per hundred cubic feet (ccf) or the approximate price per therm, divide the price by ten (10).
A general rule of thumb: Add three dollars to the Henry Hub spot price to estimate the residential natural gas price. Likewise, add 30 cents if you have already converted the price from British thermal units to ccf or therms.