|Crude Oil Proved Reserves, Reserves Changes, and Production(Million Barrels)                                                                                                                                                                                                                                                                                            |                                                             |  | Crude Oil Proved Reserves, Reserves Changes, and Production                                                                                                                                                                                                      |  | (Million Barrels)                                                                                                                                                                                                                                                | 
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|                                                                                                                                                                                                                                                                                                                                                                        | Crude Oil Proved Reserves, Reserves Changes, and Production
|                                                                                                                                                                                                                                                                                                                                                                        | (Million Barrels)                                          
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|Data Series:
			  
		      Proved Reserves as of 12/31Adjustments (+,-)Revision Increases (+)Revision Decreases (-)Divestitures (-)Acquisitions (+)Extensions and Discoveries (+)Extensions (+)New Field Discoveries (+)New Reservoir Discoveries in Old Fields (+)Estimated Production (-)
              			  
                			  Period:
			  
		      Annual |                                                             |  | Data Series:                                                                                                                                                                                                                                                     |  | Proved Reserves as of 12/31Adjustments (+,-)Revision Increases (+)Revision Decreases (-)Divestitures (-)Acquisitions (+)Extensions and Discoveries (+)Extensions (+)New Field Discoveries (+)New Reservoir Discoveries in Old Fields (+)Estimated Production (-) | 
|                                                                                                                                                                                                                                                                                                                                                                       
|                                                                                                                                                                                                                                                                                                                                                                        | Data Series:                                                |  | Proved Reserves as of 12/31Adjustments (+,-)Revision Increases (+)Revision Decreases (-)Divestitures (-)Acquisitions (+)Extensions and Discoveries (+)Extensions (+)New Field Discoveries (+)New Reservoir Discoveries in Old Fields (+)Estimated Production (-) |  | Period:                                                                                                                                                                                                                                                          | 
|Annual                                                                                                                                                                                                                                                                                                                                                                 
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|Download Series History  		  
				          
				  
		          
				  Definitions, Sources & Notes
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|Show Data By:                                                                                          
|Show Data By:                                                                                          
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|U.S. Total                                                                                             
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|Federal Offshore                                                                                       
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|Pacific (California)                                                                                   
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|Gulf of Mexico (Louisiana & Alabama)                                                                   
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|Gulf of Mexico (Texas)                                                                                 
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|Alaska                                                                                                 
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|Lower 48 States                                                                                        
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|Alabama                                                                                                
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|Arkansas                                                                                               
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|California                                                                                             
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|Coastal Region Onshore                                                                                 
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|Los Angeles Basin Onshore                                                                              
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|San Joaquin Basin Onshore                                                                              
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|State Offshore                                                                                         
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|Colorado                                                                                               
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|Florida                                                                                                
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|Illinois                                                                                               
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|Indiana                                                                                                
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|Kansas                                                                                                 
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|Kentucky                                                                                               
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|Louisiana                                                                                              
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|North                                                                                                  
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|South Onshore                                                                                          
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|State Offshore                                                                                         
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|Michigan                                                                                               
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|Mississippi                                                                                            
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|Montana                                                                                                
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|Nebraska                                                                                               
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|New Mexico                                                                                             
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|East                                                                                                   
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|West                                                                                                   
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|North Dakota                                                                                           
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|Ohio                                                                                                   
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|Oklahoma                                                                                               
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|Pennsylvania                                                                                           
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|Texas                                                                                                  
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|RRC District 1                                                                                         
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|RRC District 2 Onshore                                                                                 
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|RRC District 3 Onshore                                                                                 
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|RRC District 4 Onshore                                                                                 
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|RRC District 5                                                                                         
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|RRC District 6                                                                                         
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|RRC District 7B                                                                                        
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|RRC Distict 7C                                                                                         
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|RRC District 8                                                                                         
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|RRC District 8A                                                                                        
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|RRC District 9                                                                                         
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|RRC District 10                                                                                        
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|State Offshore                                                                                         
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|Utah                                                                                                   
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|West Virginia                                                                                          
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|Wyoming                                                                                                
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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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|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. The volumes in the table above are crude oil ONLY (aka Black Oil), excluding lease condensate. The production estimates in this table are based on data reported on Form EIA-23L, "Annual Survey of Domestic Oil and Gas Reserves." They may differ from the official Energy Information Administration production data for crude oil contained in the "Petroleum Supply Annual." 
		See Definitions, Sources, and Notes link above for more information on this table.
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|Release Date: 12/30/2022                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
|Next Release Date: 12/29/2023                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           
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