Average Prices for Natural Gas (Dollars Per Thousand Cubic Feet)
| 2008 | 2007 | 2006 | 2005 | 2004 | 2003 | 2002 | 2001 | 2000 | 1999 | 1998 | 1997 | 1996 | 1995 | 1994 | 1993 | 1992 | 1991 | 1990 | |
| Wellhead (Marketed Production) | - | - | - | - | - | - | - | - | - | - | - | - | - | 1.72 | 2.15 | 2.29 | 1.85 | 1.88 | 2.30 |
| Pipeline Fuel | - | - | - | - | - | - | - | 5.05 | 2.66 | 2.20 | 2.59 | 3.22 | 2.60 | 1.83 | 2.14 | 2.27 | 1.93 | 1.86 | 2.05 |
| City Gate | 10.61 | 9.27 | 10.51 | 10.12 | 7.61 | 6.57 | 6.75 | 6.76 | 5.34 | 3.81 | 3.74 | 4.14 | 3.89 | 2.92 | 3.44 | 3.33 | 2.91 | 2.76 | 3.09 |
| Delivered to Consumers | |||||||||||||||||||
| Residential | 16.20 | 15.42 | 16.20 | 15.15 | 13.04 | 11.84 | 9.78 | 11.96 | 9.98 | 8.61 | 8.57 | 8.60 | 7.94 | 7.18 | 7.63 | 7.51 | 6.69 | 6.80 | 6.75 |
| Commercial | 12.85 | 11.99 | 12.46 | 11.85 | 10.13 | 9.47 | 7.20 | 9.36 | 7.57 | 5.99 | 6.12 | 6.45 | 5.93 | 5.08 | 5.67 | 5.60 | 4.97 | 4.85 | 4.93 |
| Industrial | 11.72 | 9.33 | 9.98 | 10.83 | 7.91 | 5.97 | 4.59 | 5.99 | 5.23 | 3.95 | 4.07 | 4.68 | 4.07 | 3.35 | 3.15 | 3.88 | 3.72 | 3.81 | 3.67 |
| Vehicle Fuel | - | 7.45 | 7.14 | 10.12 | 6.33 | 5.97 | 4.53 | 5.89 | 5.59 | 6.25 | 5.09 | 5.05 | 2.80 | 2.30 | 2.57 | 5.62 | - | - | - |
| Electric Utilities | - | 8.42 | 7.73 | 9.62 | 6.83 | 6.35 | 4.30 | 4.53 | 4.66 | 3.16 | 3.10 | 2.93 | 2.98 | 2.67 | 2.66 | 2.89 | 2.47 | 1.90 | 2.69 |