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Segment Information
 3 Months Ended
Mar. 31, 2022
Segment Reporting [Abstract]  
Segment Information Segment Information
Selected financial information by reportable segment is presented below for the three-month periods ended March 31, 2022 and 2021 (in millions):
Three Months Ended
March 31,
 20222021
Operating Revenues and Other
United States$3,914 $3,606 
Trinidad69 76 
Other International (1)
— 12 
Total$3,983 $3,694 
Operating Income  
United States$519 $890 
Trinidad34 43 
Other International (1)
(7)(1)
Total546 932 
Reconciling Items  
Other Expense, Net(1)(4)
Interest Expense, Net(48)(47)
Income Before Income Taxes$497 $881 
(1)    Other International primarily consists of EOG's China and Canada operations. The China operations were sold in the second quarter of 2021. EOG began exploration programs in Australia in the third quarter of 2021 and in Oman in the third quarter of 2020. The decision was reached in the fourth quarter of 2021 to exit Block 36 and Block 49 in Oman.

Total assets by reportable segment are presented below at March 31, 2022 and December 31, 2021 (in millions):
At
March 31,
2022
At
December 31,
2021
Total Assets
United States$37,275 $37,436 
Trinidad676 637 
Other International (1)
146 163 
Total$38,097 $38,236 
(1)    Other International primarily consists of EOG's China and Canada operations. The China operations were sold in the second quarter of 2021. EOG began exploration programs in Australia in the third quarter of 2021 and in Oman in the third quarter of 2020. The decision was reached in the fourth quarter of 2021 to exit Block 36 and Block 49 in Oman.