# Energy Information Administration - Natural Gas Price

## Prof. Robert B. Laughlin Department of Physics Stanford University, Stanford, CA 94305

### http://tonto.eia.doe.gov/dnav/ng/ng_pri_sum_dcu_nus_m.htm (Copied 30 Dec 08)

Assuming a market price of \$0.25/m3 (\$7 per 1000 ft3), the cost per joule is

Cost/joule = [ \$0.25/m3 ] / [ 3.69 x 107 joules/m3 ] = 6.8 x 10-9 \$/joule

The above conversion factor assumes

5.5 x 107 joules/kg x 0.67 kg/m3 = 3.69 x 107 joules/m3

 Natural Gas Prices (Dollars per Thousand Cubic Feet, except where noted)
 Show Data By: Data Series Area
May-08 Jun-08 Jul-08 Aug-08 Sep-08 Oct-08 View
History
9.81 10.82 10.62 8.32 7.27 6.36 1973-2008
 Imports Price
10.80 11.71 NA NA NA NA 1989-2008
 By Pipeline
10.74 11.63 NA NA NA NA 1997-2008
 As Liquefied Natural Gas
11.33 12.34 NA NA NA NA 1997-2008
 Exports Price
10.84 11.46 NA NA NA NA 1989-2008
 By Pipeline
11.08 11.79 NA NA NA NA 1997-2008
 As Liquefied Natural Gas
7.20 7.37 NA NA NA NA 1997-2008
 City Gate Price
10.96 11.72 12.37 10.16 8.96 7.88 1973-2008
 Residential Price
16.02 18.32 20.20 19.63 17.94 15.23 1973-2008
 Commercial Price
13.23 14.41 15.43 14.06 13.04 11.82 1973-2008
 Percentage of Total Commercial Deliveries
71.5 70.8 66.9 65.4 65.3 68.8 1983-2008
 Industrial Price
11.33 12.07 13.07 9.95 8.91 8.08 2001-2008
 Percentage of Total Industrial Deliveries
21.3 20.9 20.7 20.3 18.5 18.8 2001-2008
 Electric Power Price
10.96 12.60 12.16 9.33 8.03 NA 2002-2008
 - = No Data Reported;  -- = Not Applicable;  NA = Not Available;  W = Withheld to avoid disclosure of individual company data. Notes: Prices are in nominal dollars. Beginning with the January 2008 report period, state level data for electric power volumes and prices will be delayed as EIA works to bring these data up to the schedule that is used for the residential, commercial, and industrial sectors. Gas volumes delivered for use as vehicle fuel are included in the State annual totals through 2006 but not in the State monthly components. Through 2001, electric power price data are for regulated electric utilities only; beginning in 2002, data also include nonregulated members of the electric power sector.  See Definitions, Sources, and Notes link above for more information on this table. Release Date: 12/24/2008 Next Release Date: 1/30/2009