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Properties, Plant and Equipment (Tables)
 12 Months Ended
Dec. 31, 2023
Property, Plant and Equipment [Abstract]  
Properties, Plant and Equipment
    At December 31     Year ended December 31   
    Gross Investment at Cost     Net Investment     Additions at Cost
2
     Depreciation Expense
3
 		  
    
2023
     2022     2021    
2023
     2022     2021    
2023
     2022     2021    
2023
     2022     2021   
Upstream
      
 
      
 
      
 
      
United States
  
$
117,955
 
   $ 96,590     $ 93,393    
$
50,390
 
   $ 37,031     $ 36,027    
$
20,408
 
   $ 6,461     $ 4,520    
$
7,666
 
   $ 5,012     $ 5,675   
International
  
 
183,996
 
     188,556       202,757    
 
84,561
 
     88,549       94,770    
 
4,130
 
     2,599       2,349    
 
8,109
 
     9,830       10,824   
Total Upstream
  
 
301,951
 
     285,146       296,150    
 
 134,951
 
     125,580       130,797    
 
24,538
 
     9,060        6,869    
 
 15,775
 
      14,842        16,499   
Downstream
      
 
      
 
      
 
      
United States
  
 
31,192
 
     29,802       26,888    
 
13,521
 
     12,827       10,766    
 
1,623
 
     2,742       543    
 
931
 
     913       833   
International
  
 
8,401
 
     8,281       8,134    
 
3,122
 
     3,226       3,300    
 
237
 
     246       234    
 
301
 
     311       296   
Total Downstream
  
 
39,593
 
     38,083       35,022    
 
16,643
 
     16,053       14,066    
 
1,860
 
     2,988       777    
 
1,232
 
     1,224       1,129   
All Other
      
 
      
 
      
 
      
United States
  
 
4,390
 
     4,402       4,729    
 
1,991
 
     1,931       2,078    
 
311
 
     230       143    
 
313
 
     247       290   
International
  
 
147
 
     154       144    
 
34
 
     27       20    
 
15
 
     12       7    
 
6
 
     6       7   
Total All Other
  
 
4,537
 
     4,556       4,873    
 
2,025
 
     1,958       2,098    
 
326
 
     242       150    
 
319
 
     253       297   
Total United States
  
 
153,537
 
     130,794       125,010    
 
65,902
 
     51,789       48,871    
 
22,342
 
     9,433       5,206    
 
8,910
 
     6,172       6,798   
Total International
  
 
192,544
 
     196,991       211,035    
 
87,717
 
     91,802       98,090    
 
4,382
 
     2,857       2,590    
 
8,416
 
     10,147       11,127   
Total
  
$
346,081
 
   $ 327,785     $ 336,045    
$
153,619
 
   $ 143,591     $ 146,961    
$
26,724
 
   $ 12,290     $ 7,796    
$
17,326
 
   $ 16,319     $ 17,925   
1
Other than the United States and Australia, no other country accounted for 10 percent or more of the company’s net properties, plant and equipment (PP&E) in 2023. Australia had PP&E of $41,409, $44,012 and $46,687 in 2023, 2022 and 2021, respectively. Gross Investment at Cost and Additions at Cost for 2023 each include $10,487 associated with the PDC acquisition.
2
Net of dry hole expense related to prior years’ expenditures of $110, $177 and $35 in 2023, 2022 and 2021, respectively.
3
Depreciation expense includes accretion expense of $593, $560 and $616 in 2023, 2022 and 2021, respectively, and impairments and write-offs of $2,180, $950 and $414 in 2023, 2022 and 2021, respectively.