|Coalbed Methane(Billion Cubic Feet)                                                                                                                                                                                                                                                                                             |                      |  | Coalbed Methane                                                                                                                                                                                                          |  | (Billion Cubic Feet)                                                                                                                                                                                                     | 
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | -------------------- |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |  | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | 
|                                                                                                                                                                                                                                                                                                                               
|                                                                                                                                                                                                                                                                                                                                | Coalbed Methane     
|                                                                                                                                                                                                                                                                                                                                | (Billion Cubic Feet)
|                                                                                                                                                                                                                                                                                                                               
|Data Series:
			  
		      Proved Reserves as of Dec. 31AdjustmentsRevision IncreasesRevision DecreasesDivestituresAcquisitionsExtensions and DiscoveriesExtensionsNew Field DiscoveriesNew Reservoir Discoveries in Old FieldsEstimated Production
              			  
                			  Period:
			  
		      Annual |                      |  | Data Series:                                                                                                                                                                                                             |  | Proved Reserves as of Dec. 31AdjustmentsRevision IncreasesRevision DecreasesDivestituresAcquisitionsExtensions and DiscoveriesExtensionsNew Field DiscoveriesNew Reservoir Discoveries in Old FieldsEstimated Production | 
|                                                                                                                                                                                                                                                                                                                               
|                                                                                                                                                                                                                                                                                                                                | Data Series:         |  | Proved Reserves as of Dec. 31AdjustmentsRevision IncreasesRevision DecreasesDivestituresAcquisitionsExtensions and DiscoveriesExtensionsNew Field DiscoveriesNew Reservoir Discoveries in Old FieldsEstimated Production |  | Period:                                                                                                                                                                                                                  | 
|Annual                                                                                                                                                                                                                                                                                                                         
|                                                                                                                                                                                                                                                                                                                               

|Download Series History  		  
				          
				  
		          
				  Definitions, Sources & Notes
|-------------------------------------------------------------------------------------------------------
|                                                                                                       
|Show Data By:                                                                                          
|Show Data By:                                                                                          
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|                                                                                                       
|U.S.                                                                                                   
|                                                                                                       
|Federal Offshore U.S.                                                                                  
|                                                                                                       
|Pacific (California)                                                                                   
|                                                                                                       
|Gulf of Mexico (Central & Eastern)                                                                     
|                                                                                                       
|Gulf of Mexico (Western)                                                                               
|                                                                                                       
|Alaska                                                                                                 
|                                                                                                       
|Lower 48 States                                                                                        
|                                                                                                       
|Alabama                                                                                                
|                                                                                                       
|Arkansas                                                                                               
|                                                                                                       
|California                                                                                             
|                                                                                                       
|Coastal Region Onshore                                                                                 
|                                                                                                       
|Los Angeles Basin Onshore                                                                              
|                                                                                                       
|San Joaquin Basin Onshore                                                                              
|                                                                                                       
|State Offshore                                                                                         
|                                                                                                       
|Colorado                                                                                               
|                                                                                                       
|Florida                                                                                                
|                                                                                                       
|Kansas                                                                                                 
|                                                                                                       
|Kentucky                                                                                               
|                                                                                                       
|Louisiana                                                                                              
|                                                                                                       
|North                                                                                                  
|                                                                                                       
|South Onshore                                                                                          
|                                                                                                       
|State Offshore                                                                                         
|                                                                                                       
|Michigan                                                                                               
|                                                                                                       
|Mississippi                                                                                            
|                                                                                                       
|Montana                                                                                                
|                                                                                                       
|New Mexico                                                                                             
|                                                                                                       
|East                                                                                                   
|                                                                                                       
|West                                                                                                   
|                                                                                                       
|New York                                                                                               
|                                                                                                       
|North Dakota                                                                                           
|                                                                                                       
|Ohio                                                                                                   
|                                                                                                       
|Oklahoma                                                                                               
|                                                                                                       
|Pennsylvania                                                                                           
|                                                                                                       
|Texas                                                                                                  
|                                                                                                       
|RRC District 1                                                                                         
|                                                                                                       
|RRC District 2 Onshore                                                                                 
|                                                                                                       
|RRC District 3 Onshore                                                                                 
|                                                                                                       
|RRC District 4 Onshore                                                                                 
|                                                                                                       
|RRC District 5                                                                                         
|                                                                                                       
|RRC District 6                                                                                         
|                                                                                                       
|RRC District 7B                                                                                        
|                                                                                                       
|RRC District 7C                                                                                        
|                                                                                                       
|RRC District 8                                                                                         
|                                                                                                       
|RRC District 8A                                                                                        
|                                                                                                       
|RRC District 9                                                                                         
|                                                                                                       
|RRC District 10                                                                                        
|                                                                                                       
|State Offshore                                                                                         
|                                                                                                       
|Utah                                                                                                   
|                                                                                                       
|Virginia                                                                                               
|                                                                                                       
|West Virginia                                                                                          
|                                                                                                       
|Wyoming                                                                                                
|                                                                                                       

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|

|                                                                                                                                                                                                                                                                                                                                                        
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|- = No Data Reported; 	 
	  -- = Not Applicable; 		   
	  NA = Not Available; 
	  W = Withheld to avoid disclosure of individual company data.                                                                                                                                                                                                       
|                                                                                                                                                                                                                                                                                                                                                        
|Notes:
		 W --  Individual state volumes are withheld to avoid disclosure of operator-level reserves data, due to statistical precision requirements, or due to other data quality reasons.  The individual state volumes are included in the U.S. Total volume. 
		See Definitions, Sources, and Notes link above for more information on this table.
|                                                                                                                                                                                                                                                                                                                                                        
|Release Date: 12/30/2022                                                                                                                                                                                                                                                                                                                                
|Next Release Date: 12/29/2023                                                                                                                                                                                                                                                                                                                           
|