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OTHER INCOME AND OTHER EXPENSE (Notes)
 3 Months Ended
Mar. 31, 2024
Other Income and Other Expense Disclosure [Text Block] OTHER INCOME AND OTHER EXPENSE
The following table sets forth the components of other income and other expense for the periods indicated:
Three Months Ended
March 31,
20242023
(Thousands of dollars)
Net periodic benefit other than service cost
$1,009 $908 
Earnings on investments associated with nonqualified employee benefit plans
2,176 1,613 
Other income (expense), net323 60 
Total other income, net
$3,508 $2,581