Annual report pursuant to Section 13 and 15(d)

SUPPLEMENTAL DISCLOSURES ABOUT NATURAL GAS PRODUCING ACTIVITIES - Additional Information (Details)

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SUPPLEMENTAL DISCLOSURES ABOUT NATURAL GAS PRODUCING ACTIVITIES - Additional Information (Details) - Bcfe
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Extractive Industries [Abstract]      
Extensions, discoveries and other additions 113 203  
Additional proved undeveloped locations, discoveries (in Bcfe) 89 152  
Additional proved undeveloped locations, drilling activities (in Bcfe) 24 51  
Revisions of previous estimates (52) 35 (152)
Proved developed and undeveloped reserves, revision from removing proved undeveloped locations (in Bcfe) (38)    
Proved developed and undeveloped, revision from changes in ownership (in Bcfe) (25) 15  
Proved developed and undeveloped reserve, revision from increased operational costs (in Bcfe) (3)    
Proved developed and undeveloped, revision from well performance (in Bcfe) 8 11 14
Proved developed and undeveloped reserves, positive (negative) revision due to change of prices (in Bcfe) 6 9 (149)
Purchases of reserves-in-place 108    
Proved undeveloped reserves, added from additional locations (in Bcfe) 89 152  
Proved undeveloped reserves, revision of previous estimate (in Bcfe) (44) 25  
Proved undeveloped reverses, revision from removing proved undeveloped locations (in Bcfe) (38)    
Proved undeveloped reverses, revision from changes in ownership (in Bcfe) (13) 16  
Proved undeveloped reserves, revision from well performance (in Bcfe) 5 6  
Proved undeveloped reserves, revision due to change in commodity prices (in Bcfe) 2 3 148
Proved undeveloped reserves, acquisition of natural gas assets (in Bcfe) 71    
Proved undeveloped reserves, converted (in Bcfe) 138    
Proved developed and undeveloped reserves, revisions due to loss of leases (in Bcfe)     (17)
Proved undeveloped reserve, revision of previous estimate (in Bcfe)     165
Proved undeveloped reserves, revision from lease expirations (in Bcfe)     17