|                                                                                            
|--------------------------------------------------------------------------------------------
|                                                                                            
|View History:  Monthly  Annual Download Data (XLS File)                                    
|View History:  Monthly  Annual                                                              
|View History:  Monthly  Annual                                                              
|View History:                                                                               
|                                                                                            
|Percent of Industrial Natural Gas Deliveries in Colorado Represented by the Price  (Percent)
|                                                                                            
|                                                                                            
|Percent of Industrial Natural Gas Deliveries in Colorado Represented by the Price  (Percent)
|                                                                                            

|Year                                                                                                                              | Jan  | Feb  | Mar  | Apr  | May  | Jun | Jul | Aug | Sep  | Oct | Nov  | Dec 
|--------------------------------------------------------------------------------------------------------------------------------- | ---- | ---- | ---- | ---- | ---- | --- | --- | --- | ---- | --- | ---- | ----
|2001                                                                                                                              | 0.0  | 0.1  | 0.0  | 0.2  | 0.6  | 1.2 | 2.9 | 2.8 | 1.7  | 0.4 | 0.4  | 0.1 
|2002                                                                                                                              | 0.1  | 0.1  | 1.4  | 1.1  | 1.9  | 1.7 | 2.1 | 3.3 | 1.7  | 0.7 | 0.6  | 0.6 
|2003                                                                                                                              | 0.1  | 0.0  | 0.3  | 1.2  | 0.8  | 0.9 | 1.9 | 3.0 | 2.7  | 0.9 | 0.4  | 0.1 
|2004                                                                                                                              | 0.1  | 0.1  | 0.3  | 1.1  | 0.8  | 1.5 | 1.5 | 2.3 | 2.0  | 0.3 | 0.2  | 0.0 
|                                                                                                                                 
|2005                                                                                                                              | 0.8  | 0.8  | 0.6  | 0.7  | 0.6  | 0.4 | 0.3 | 0.6 | 0.5  | 0.4 | 0.5  | 0.7 
|2006                                                                                                                              | 0.1  | 0.1  | 0.2  | 0.6  | 1.1  | 1.5 | 1.6 | 2.0 | 1.0  | 0.3 | 0.1  | 0.1 
|2007                                                                                                                              | 0.1  | 0.1  | 0.1  | 0.2  | 0.5  | 0.8 | 1.3 | 1.5 | 0.7  | 0.2 | 0.2  | 0.1 
|2008                                                                                                                              | 0.7  | 0.8  | 0.7  | 0.5  | 0.5  | 0.5 | 0.5 | 0.5 | 0.4  | 0.4 | 0.6  | 0.5 
|2009                                                                                                                              | 0.6  | 0.8  | 0.4  | 0.8  | 0.2  | 0.4 | 0.4 | 0.5 | 0.4  | 0.5 | 0.6  | 0.5 
|                                                                                                                                 
|2010                                                                                                                              | 8.3  | 5.3  | 6.0  | 5.7  | 5.3  | 3.9 | 2.6 | 2.9 | 2.9  | 5.0 | 5.5  | 6.3 
|2011                                                                                                                              | 8.9  | 9.0  | 8.3  | 8.6  | 6.5  | 4.3 | 5.2 | 5.5 | 5.7  | 6.9 | 8.5  | 8.6 
|2012                                                                                                                              | 8.9  | 10.6 | 7.8  | 6.4  | 3.4  | 6.0 | 3.3 | 3.3 | 4.0  | 5.8 | 7.6  | 9.0 
|2013                                                                                                                              | 9.3  | 10.0 | 8.5  | 6.9  | 4.9  | 5.8 | 4.4 | 3.8 | 4.9  | 6.0 | 8.5  | 8.1 
|2014                                                                                                                              | 9.4  | 8.6  | 8.9  | 7.3  | 6.9  | 5.4 | 4.4 | 4.7 | 5.5  | 6.6 | 9.7  | 9.6 
|                                                                                                                                 
|2015                                                                                                                              | 9.8  | 9.2  | 8.8  | 7.5  | 8.6  | 4.2 | 3.5 | 4.4 | 5.7  | 6.5 | 9.0  | 9.7 
|2016                                                                                                                              | 10.2 | 9.6  | 8.9  | 7.2  | 7.2  | 5.3 | 4.6 | 4.3 | 5.2  | 5.5 | 7.7  | 9.4 
|2017                                                                                                                              | 8.6  | 8.7  | 7.2  | 7.3  | 6.0  | 5.1 | 5.4 | 5.4 | 6.2  | 6.2 | 8.0  | 8.7 
|2018                                                                                                                              | 7.9  | 8.0  | 7.4  | 6.9  | 6.1  | 4.9 | 5.5 | 5.5 | 12.1 | 6.3 | 8.1  | 8.2 
|2019                                                                                                                              | 9.4  | 9.2  | 9.5  | 6.7  | 6.9  | 6.1 | 6.1 | 5.7 | 5.8  | 7.4 | 11.3 | 10.7
|                                                                                                                                 
|2020                                                                                                                              | 11.3 | 9.5  | 8.6  | 7.8  | 7.8  | 5.0 | 5.7 | 6.2 | 6.7  | 7.4 | 9.7  | 11.2
|2021                                                                                                                              | 11.1 | 9.4  | 12.9 | 8.0  | 9.1  | 5.9 | 6.3 | 7.0 | 6.3  | 7.6 | 10.3 | 10.6
|2022                                                                                                                              | 12.0 | 9.8  | 10.2 | 10.9 | 11.1 | 8.3 | 8.8 | 7.2 | 8.3  | 8.0 | 11.4 | 13.1
|2023                                                                                                                              | 14.3 | 13.6 | 14.1 | 10.9 | 12.5 | 8.4 | 7.6 | 6.9 | 8.0  | 7.6 | 12.1 | 14.1
|2024                                                                                                                              | 14.7 | 14.8 | 12.3 | 7.9  | 11.2 |     |     |     |      |     |      |     
|                                                                                                                                 
|- = No Data Reported;  -- = Not Applicable;  NA = Not Available;  W = Withheld to avoid disclosure of individual company data.
|                                                                                                                                 
|Release Date: 7/31/2024                                                                                                          
|Next Release Date: 8/30/2024