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|View History:  Monthly  Annual Download Data (XLS File)                                        
|View History:  Monthly  Annual                                                                  
|View History:  Monthly  Annual                                                                  
|View History:                                                                                   
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|Washington Natural Gas Price Sold to Electric Power Consumers  (Dollars per Thousand Cubic Feet)
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|Washington Natural Gas Price Sold to Electric Power Consumers  (Dollars per Thousand Cubic Feet)
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|Year                                                                                                                              | Jan  | Feb  | Mar  | Apr   | May   | Jun  | Jul  | Aug  | Sep  | Oct  | Nov  | Dec  
|--------------------------------------------------------------------------------------------------------------------------------- | ---- | ---- | ---- | ----- | ----- | ---- | ---- | ---- | ---- | ---- | ---- | -----
|2002                                                                                                                              | 2.72 | W    | W    | W     | W     | W    | W    | 2.61 | 2.95 | 3.53 | 3.74 | 4.32 
|2003                                                                                                                              | 4.15 | W    | W    | W     | W     | W    | 3.97 | 4.02 | 3.96 | 3.91 | 4.10 | 3.94 
|2004                                                                                                                              | 4.84 | 4.52 | 3.98 | W     | W     | W    | 4.96 | 4.93 | 4.12 | 4.22 | 5.19 | 5.13 
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|2005                                                                                                                              | 5.32 | 4.98 | 5.35 | 5.62  | 3.67  | 4.07 | 5.45 | 6.51 | 7.49 | 6.62 | 8.13 | 10.30
|2006                                                                                                                              | 6.45 | 7.05 | 5.70 | 5.42  | 6.01  | 6.24 | 5.40 | 5.96 | 5.00 | 4.83 | 6.80 | 7.36 
|2007                                                                                                                              | 6.28 | 6.52 | 5.03 | 5.32  | 5.73  | 6.04 | 5.90 | 5.40 | 5.36 | 6.21 | 7.02 | 7.70 
|2008                                                                                                                              | 8.50 | 8.96 | 9.30 | 10.14 | 10.16 | W    | 9.81 | 8.03 | 7.63 | 7.22 | 7.43 | 8.69 
|2009                                                                                                                              | W    | 6.36 | 5.90 | W     | W     | 4.79 | 4.11 | 3.95 | 4.04 | 5.51 | 6.31 | W    
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|2010                                                                                                                              | W    | W    | 6.03 | 5.39  | W     | W    | 5.09 | 4.77 | 4.83 | 5.08 | 5.88 | W    
|2011                                                                                                                              | 6.17 | W    | W    | W     | W     | W    | W    | W    | 5.20 | W    | 5.06 | 4.96 
|2012                                                                                                                              | W    | W    | W    | W     | W     | W    | W    | 4.19 | W    | W    | W    | W    
|2013                                                                                                                              | 5.27 | W    | W    | 5.22  | 5.17  | W    | W    | W    | W    | W    | W    | W    
|2014                                                                                                                              | W    | W    | 6.17 | 5.44  | W     | 5.27 | W    | W    | W    | W    | W    | W    
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|2015                                                                                                                              | W    | W    | W    | W     | W     | W    | W    | W    | W    | W    | W    | W    
|2016                                                                                                                              | W    | W    | W    | W     | W     | W    | W    | W    | W    | W    | W    | W    
|2017                                                                                                                              | W    | W    | W    | W     | W     | W    | W    | W    | W    | W    | W    | W    
|2018                                                                                                                              | W    | W    | W    | W     | W     | W    | W    | W    | W    | W    | W    | W    
|2019                                                                                                                              | W    | W    | W    | W     | W     | W    | W    | W    | W    | W    | W    | W    
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|2020                                                                                                                              | W    | W    | W    | W     | W     | W    | W    | W    | W    | W    | W    | W    
|2021                                                                                                                              | W    | W    | W    | W     | W     | W    | W    | W    | W    | W    | W    | W    
|2022                                                                                                                              | W    | W    | W    | W     | W     | W    | W    | W    | W    | W    | W    | W    
|2023                                                                                                                              | W    | W    | W    | W     | W     | W    | W    | W    | W    | W    | W    | W    
|2024                                                                                                                              | W    | W    | W    | W     | 2.15  |      |      |      |      |      |      |      
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|- = No Data Reported;  -- = Not Applicable;  NA = Not Available;  W = Withheld to avoid disclosure of individual company data.
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|Release Date: 7/31/2024                                                                                                          
|Next Release Date: 8/30/2024