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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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|Percent of Commercial Natural Gas Deliveries in Utah Represented by the Price  (Percent)
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|Percent of Commercial Natural Gas Deliveries in Utah Represented by the Price  (Percent)
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|Year                                                                                                                              | Jan   | Feb   | Mar   | Apr   | May   | Jun   | Jul   | Aug   | Sep   | Oct   | Nov   | Dec  
|--------------------------------------------------------------------------------------------------------------------------------- | ----- | ----- | ----- | ----- | ----- | ----- | ----- | ----- | ----- | ----- | ----- | -----
|1989                                                                                                                              | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0
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|1990                                                                                                                              | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0
|1991                                                                                                                              | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0
|1992                                                                                                                              | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0
|1993                                                                                                                              | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0
|1994                                                                                                                              | 83.8  | 85.2  | 82.9  | 82.4  | 77.7  | 77.9  | 76.4  | 79.0  | 79.8  | 83.7  | 83.8  | 85.9 
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|1995                                                                                                                              | 85.5  | 85.5  | 82.5  | 83.1  | 80.0  | 79.3  | 73.9  | 71.3  | 75.2  | 79.4  | 80.2  | 82.8 
|1996                                                                                                                              | 84.0  | 85.6  | 82.8  | 82.3  | 77.7  | 72.9  | 73.3  | 71.9  | 78.4  | 79.5  | 81.2  | 84.4 
|1997                                                                                                                              | 86.2  | 87.1  | 82.9  | 83.7  | 78.8  | 76.9  | 72.7  | 71.6  | 74.7  | 80.1  | 83.0  | 86.4 
|1998                                                                                                                              | 85.7  | 89.1  | 81.2  | 82.5  | 73.6  | 75.6  | 70.6  | 71.6  | 77.6  | 80.1  | 82.2  | 85.2 
|1999                                                                                                                              | 85.7  | 85.6  | 82.8  | 82.9  | 80.0  | 72.8  | 75.9  | 74.3  | 75.3  | 79.8  | 82.7  | 87.1 
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|2000                                                                                                                              | 86.7  | 88.3  | 83.8  | 78.8  | 76.4  | 77.3  | 77.3  | 74.5  | 79.7  | 79.7  | 85.6  | 87.0 
|2001                                                                                                                              | 88.3  | 87.5  | 85.6  | 84.4  | 79.9  | 76.7  | 76.3  | 75.1  | 78.5  | 80.5  | 83.1  | 86.1 
|2002                                                                                                                              | 86.6  | 86.5  | 89.8  | 77.6  | 71.9  | 72.3  | 68.2  | 68.7  | 75.8  | 82.7  | 86.4  | 88.1 
|2003                                                                                                                              | 88.7  | 89.1  | 88.1  | 87.0  | 80.3  | 77.9  | 71.8  | 70.7  | 76.3  | 78.0  | 82.9  | 85.5 
|2004                                                                                                                              | 87.0  | 86.8  | 84.1  | 80.2  | 77.8  | 73.7  | 100.0 | 72.2  | 77.5  | 78.0  | 86.9  | 87.8 
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|2005                                                                                                                              | 90.3  | 87.9  | 86.5  | 87.1  | 84.9  | 82.2  | 79.9  | 80.0  | 82.4  | 85.6  | 85.7  | 90.2 
|2006                                                                                                                              | 87.5  | 86.6  | 87.3  | 86.9  | 83.0  | 82.5  | 81.6  | 81.0  | 84.2  | 87.0  | 88.5  | 89.8 
|2007                                                                                                                              | 90.6  | 88.5  | 88.7  | 85.9  | 82.5  | 83.4  | 81.1  | 78.5  | 81.5  | 83.9  | 84.4  | 88.4 
|2008                                                                                                                              | 89.0  | 88.1  | 87.2  | 86.6  | 83.7  | 81.6  | 80.3  | 79.5  | 81.5  | 83.4  | 86.8  | 87.7 
|2009                                                                                                                              | 89.0  | 86.0  | 86.2  | 85.5  | 80.7  | 77.4  | 80.4  | 76.6  | 77.7  | 85.7  | 85.9  | 89.2 
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|2010                                                                                                                              | 88.7  | 86.4  | 87.4  | 87.1  | 83.3  | 79.4  | 81.3  | 77.8  | 81.4  | 82.5  | 86.9  | 89.3 
|2011                                                                                                                              | 90.4  | 87.5  | 87.1  | 87.4  | 84.9  | 81.6  | 79.8  | 78.7  | 79.7  | 82.1  | 86.9  | 88.5 
|2012                                                                                                                              | 87.6  | 86.7  | 87.0  | 83.8  | 80.6  | 78.6  | 79.2  | 72.2  | 74.9  | 74.6  | 82.9  | 84.3 
|2013                                                                                                                              | 87.8  | 84.7  | 83.7  | 80.2  | 77.8  | 70.8  | 70.8  | 67.5  | 70.3  | 75.1  | 79.8  | 84.6 
|2014                                                                                                                              | 84.0  | 82.1  | 78.7  | 76.8  | 73.0  | 68.7  | 67.2  | 67.2  | 66.8  | 71.3  | 78.9  | 81.1 
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|2015                                                                                                                              | 85.0  | 78.4  | 80.8  | 74.7  | 69.4  | 67.1  | 66.9  | 65.1  | 66.7  | 67.0  | 76.1  | 80.7 
|2016                                                                                                                              | 82.9  | 80.7  | 77.6  | 75.9  | 69.4  | 67.5  | 66.2  | 60.4  | 62.4  | 66.7  | 67.9  | 80.8 
|2017                                                                                                                              | 80.8  | 77.1  | 76.9  | 70.9  | 66.1  | 60.5  | 60.1  | 55.2  | 58.4  | 67.8  | 68.0  | 75.5 
|2018                                                                                                                              | 76.4  | 72.0  | 73.8  | 69.0  | 67.4  | 65.2  | 54.2  | 54.6  | 52.4  | 58.9  | 66.2  | 71.4 
|2019                                                                                                                              | 74.7  | 71.3  | 70.5  | 62.8  | 58.5  | 54.1  | 50.7  | 47.5  | 48.6  | 54.8  | 68.7  | 68.6 
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|2020                                                                                                                              | 73.1  | 70.3  | 67.0  | 70.7  | 52.9  | 52.9  | 51.3  | 47.4  | 51.8  | 53.1  | 64.7  | 72.1 
|2021                                                                                                                              | 72.4  | 62.6  | 68.9  | 68.1  | 64.7  | 49.2  | 42.4  | 47.5  | 49.8  | 58.0  | 60.7  | 69.9 
|2022                                                                                                                              | 75.6  | 70.3  | 69.6  | 63.9  | 58.8  | 50.8  | 47.0  | 44.7  | 48.8  | 51.9  | 67.0  | 71.7 
|2023                                                                                                                              | 72.7  | 71.2  | 70.7  | 68.1  | 55.3  | 51.5  | 49.1  | 47.6  | 51.3  | 53.7  | 64.9  | 71.8 
|2024                                                                                                                              | 73.8  | 70.1  | 69.9  |       |       |       |       |       |       |       |       |      
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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: 5/31/2024                                                                                                          
|Next Release Date: 6/28/2024