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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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|U.S. Supplemental Gaseous Fuels  (Billion Cubic Feet)   
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|                                                        
|U.S. Supplemental Gaseous Fuels  (Billion Cubic Feet)   
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|Year                                                                                                                              | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec
|--------------------------------------------------------------------------------------------------------------------------------- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
|1973                                                                                                                              | NA  | NA  | NA  | NA  | NA  | NA  | NA  | NA  | NA  | NA  | NA  | NA 
|1974                                                                                                                              | NA  | NA  | NA  | NA  | NA  | NA  | NA  | NA  | NA  | NA  | NA  | NA 
|                                                                                                                                 
|1975                                                                                                                              | NA  | NA  | NA  | NA  | NA  | NA  | NA  | NA  | NA  | NA  | NA  | NA 
|1976                                                                                                                              | NA  | NA  | NA  | NA  | NA  | NA  | NA  | NA  | NA  | NA  | NA  | NA 
|1977                                                                                                                              | NA  | NA  | NA  | NA  | NA  | NA  | NA  | NA  | NA  | NA  | NA  | NA 
|1978                                                                                                                              | NA  | NA  | NA  | NA  | NA  | NA  | NA  | NA  | NA  | NA  | NA  | NA 
|1979                                                                                                                              | NA  | NA  | NA  | NA  | NA  | NA  | NA  | NA  | NA  | NA  | NA  | NA 
|                                                                                                                                 
|1980                                                                                                                              | 17  | 16  | 16  | 12  | 11  | 10  | 10  | 10  | 10  | 12  | 14  | 16 
|1981                                                                                                                              | 20  | 17  | 17  | 14  | 13  | 12  | 12  | 12  | 12  | 14  | 15  | 19 
|1982                                                                                                                              | 19  | 16  | 15  | 12  | 9   | 9   | 9   | 9   | 9   | 11  | 13  | 14 
|1983                                                                                                                              | 16  | 12  | 12  | 10  | 8   | 8   | 8   | 10  | 10  | 10  | 13  | 16 
|1984                                                                                                                              | 13  | 10  | 10  | 8   | 7   | 7   | 7   | 8   | 8   | 8   | 11  | 13 
|                                                                                                                                 
|1985                                                                                                                              | 13  | 9   | 8   | 11  | 11  | 10  | 12  | 12  | 9   | 12  | 9   | 13 
|1986                                                                                                                              | 12  | 11  | 11  | 8   | 8   | 8   | 8   | 8   | 8   | 9   | 10  | 15 
|1987                                                                                                                              | 10  | 9   | 9   | 8   | 7   | 7   | 8   | 8   | 7   | 8   | 9   | 15 
|1988                                                                                                                              | 12  | 11  | 10  | 8   | 7   | 7   | 7   | 7   | 6   | 8   | 9   | 11 
|1989                                                                                                                              | 11  | 10  | 10  | 8   | 8   | 7   | 8   | 8   | 7   | 9   | 9   | 12 
|                                                                                                                                 
|1990                                                                                                                              | 12  | 11  | 11  | 11  | 9   | 9   | 10  | 9   | 9   | 10  | 10  | 12 
|1991                                                                                                                              | 5   | 10  | 11  | 9   | 9   | 8   | 9   | 9   | 8   | 10  | 9   | 11 
|1992                                                                                                                              | 12  | 11  | 11  | 10  | 9   | 8   | 8   | 8   | 8   | 10  | 11  | 12 
|1993                                                                                                                              | 13  | 11  | 12  | 10  | 7   | 9   | 8   | 8   | 8   | 10  | 11  | 12 
|1994                                                                                                                              | 13  | 10  | 10  | 9   | 8   | 8   | 8   | 8   | 8   | 9   | 10  | 12 
|                                                                                                                                 
|1995                                                                                                                              | 12  | 10  | 10  | 7   | 8   | 8   | 8   | 8   | 7   | 9   | 10  | 12 
|1996                                                                                                                              | 12  | 11  | 11  | 9   | 6   | 8   | 8   | 8   | 8   | 9   | 10  | 10 
|1997                                                                                                                              | 8   | 7   | 7   | 6   | 7   | 5   | 6   | 6   | 5   | 6   | 7   | 8  
|1998                                                                                                                              | 8   | 6   | 7   | 6   | 6   | 5   | 6   | 6   | 6   | 7   | 8   | 8  
|1999                                                                                                                              | 8   | 7   | 7   | 7   | 7   | 5   | 6   | 7   | 6   | 7   | 7   | 8  
|                                                                                                                                 
|2000                                                                                                                              | 9   | 8   | 7   | 7   | 6   | 6   | 7   | 7   | 6   | 7   | 8   | 9  
|2001                                                                                                                              | 9   | 7   | 8   | 6   | 6   | 6   | 7   | 6   | 7   | 7   | 8   | 8  
|2002                                                                                                                              | 6   | 6   | 6   | 5   | 5   | 5   | 6   | 6   | 5   | 6   | 6   | 7  
|2003                                                                                                                              | 6   | 6   | 5   | 5   | 6   | 5   | 6   | 6   | 5   | 5   | 6   | 7  
|2004                                                                                                                              | 6   | 6   | 6   | 5   | 6   | 1   | 3   | 5   | 5   | 6   | 6   | 5  
|                                                                                                                                 
|2005                                                                                                                              | 4   | 5   | 6   | 5   | 4   | 5   | 5   | 6   | 5   | 6   | 6   | 6  
|2006                                                                                                                              | 6   | 6   | 6   | 5   | 4   | 6   | 5   | 6   | 5   | 6   | 6   | 6  
|2007                                                                                                                              | 6   | 5   | 6   | 5   | 4   | 5   | 5   | 5   | 5   | 5   | 6   | 4  
|2008                                                                                                                              | 5   | 5   | 5   | 5   | 5   | 5   | 5   | 5   | 4   | 5   | 5   | 5  
|2009                                                                                                                              | 6   | 5   | 6   | 5   | 6   | 5   | 6   | 6   | 5   | 5   | 5   | 5  
|                                                                                                                                 
|2010                                                                                                                              | 5   | 5   | 5   | 5   | 5   | 5   | 5   | 6   | 5   | 6   | 5   | 6  
|2011                                                                                                                              | 5   | 4   | 5   | 5   | 5   | 5   | 5   | 5   | 5   | 5   | 5   | 5  
|2012                                                                                                                              | 5   | 5   | 5   | 5   | 5   | 5   | 5   | 5   | 5   | 5   | 5   | 5  
|2013                                                                                                                              | 5   | 4   | 5   | 4   | 5   | 4   | 5   | 5   | 5   | 5   | 5   | 5  
|2014                                                                                                                              | 5   | 4   | 5   | 5   | 5   | 5   | 5   | 5   | 5   | 5   | 5   | 5  
|                                                                                                                                 
|2015                                                                                                                              | 5   | 4   | 5   | 5   | 5   | 5   | 5   | 5   | 5   | 5   | 5   | 5  
|2016                                                                                                                              | 5   | 5   | 5   | 5   | 5   | 5   | 5   | 5   | 5   | 5   | 5   | 5  
|2017                                                                                                                              | 5   | 5   | 5   | 5   | 5   | 5   | 6   | 6   | 5   | 6   | 6   | 6  
|2018                                                                                                                              | 6   | 5   | 6   | 5   | 6   | 6   | 6   | 6   | 6   | 6   | 6   | 6  
|2019                                                                                                                              | 5   | 5   | 5   | 5   | 5   | 5   | 5   | 5   | 5   | 5   | 5   | 5  
|                                                                                                                                 
|2020                                                                                                                              | 6   | 5   | 6   | 5   | 5   | 5   | 5   | 5   | 5   | 5   | 5   | 5  
|2021                                                                                                                              | 5   | 5   | 6   | 5   | 6   | 5   | 6   | 6   | 5   | 6   | 6   | 6  
|2022                                                                                                                              | 6   | 5   | 6   | 6   | 6   | 6   | 6   | 6   | 6   | 6   | 6   | 6  
|2023                                                                                                                              | 7   | 6   | 6   | 5   | 6   | 4   | 6   | 5   | 3   | 3   | 5   | 6  
|2024                                                                                                                              | 6   |     |     |     |     |     |     |     |     |     |     |    
|                                                                                                                                 
|- = No Data Reported;  -- = Not Applicable;  NA = Not Available;  W = Withheld to avoid disclosure of individual company data.
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|Release Date: 3/29/2024                                                                                                          
|Next Release Date: 4/30/2024