Annual report pursuant to Section 13 and 15(d)

SUPPLEMENTAL INFORMATION ON OIL AND GAS EXPLORATION AND PRODUCTION ACTIVITIES (UNAUDITED) - Oil and Gas Reserves (Details)

v3.22.4
SUPPLEMENTAL INFORMATION ON OIL AND GAS EXPLORATION AND PRODUCTION ACTIVITIES (UNAUDITED) - Oil and Gas Reserves (Details)
 12 Months Ended
Dec. 31, 2022
bbl
Dec. 31, 2021
bbl
Dec. 31, 2020
bbl
Dec. 31, 2021
Bcf
Dec. 31, 2019
bbl
Proved Developed and Undeveloped Reserves [Roll Forward]          
Beginning of the period 3,898,000,000 2,588,000,000 4,528,000,000    
Purchases of reserves 0 0 0    
Extensions and discoveries 439,000,000 695,000,000 240,000,000    
Sales of reserves 0 0 (75,000,000)    
Revisions of prior reserve estimates 70,000,000 982,000,000 (1,725,000,000)    
Current production (359,000,000) (366,000,000) (380,000,000)    
End of period 4,048,000,000 3,898,000,000 2,588,000,000    
Proved developed reserves (Volume) 2,295,000,000 2,165,000,000 1,527,000,000 1,984,000,000
Proved undeveloped reserves (Volume) 1,752,000,000 1,733,000,000 1,061,000,000   2,544,000,000
Oil          
Proved Developed and Undeveloped Reserves [Roll Forward]          
Beginning of the period 16,000,000 13,000,000 18,000,000    
Purchases of reserves 0 0 0    
Extensions and discoveries 3,000,000 2,000,000 1,000,000    
Sales of reserves 0 0 0    
Revisions of prior reserve estimates 0 2,000,000 (4,000,000)    
Current production (2,000,000) (2,000,000) (2,000,000)    
End of period 18,000,000 16,000,000 13,000,000    
Proved developed reserves (Volume) 9,000,000 8,000,000 7,000,000   8,000,000
Proved undeveloped reserves (Volume) 9,000,000 8,000,000 7,000,000   10,000,000
Natural Gas          
Proved Developed and Undeveloped Reserves [Roll Forward]          
Beginning of the period 3,478,000,000 2,281,000,000 4,048,000,000    
Purchases of reserves 0 0 0    
Extensions and discoveries 391,000,000 617,000,000 216,000,000    
Sales of reserves 0 0 (74,000,000)    
Revisions of prior reserve estimates 66,000,000 913,000,000 (1,564,000,000)    
Current production (322,000,000) (333,000,000) (345,000,000)    
End of period 3,612,000,000 3,478,000,000 2,281,000,000    
Proved developed reserves (Volume) 2,034,000,000 1,928,000,000 1,358,000,000   1,757,000,000
Proved undeveloped reserves (Volume) 1,578,000,000 1,550,000,000 923,000,000   2,291,000,000
Natural Gas Liquids          
Proved Developed and Undeveloped Reserves [Roll Forward]          
Beginning of the period 54,000,000 38,000,000 62,000,000    
Purchases of reserves 0 0 0    
Extensions and discoveries 5,000,000 11,000,000 3,000,000    
Sales of reserves 0 0 0    
Revisions of prior reserve estimates 0 9,000,000 (23,000,000)    
Current production (4,000,000) (4,000,000) (4,000,000)    
End of period 54,000,000 54,000,000 38,000,000    
Proved developed reserves (Volume) 34,000,000 31,000,000 22,000,000   30,000,000
Proved undeveloped reserves (Volume) 20,000,000 22,000,000 16,000,000   32,000,000