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Other noncurrent liabilities
6 Months Ended
Jun. 30, 2025
Other noncurrent liabilities  
Other noncurrent liabilities

Note 9 – Other noncurrent liabilities:

    

December 31, 

    

June 30, 

2024

2025

(In millions)

Accrued development costs

$

26.8

$

24.7

Operating lease liabilities

17.1

17.1

Insurance claims and expenses

 

16.6

 

16.6

Asset retirement obligations

14.3

16.2

Deferred income

11.8

8.0

Other postretirement benefits

 

6.7

 

7.0

Employee benefits

 

4.5

 

5.0

Earn-out liability

4.3

4.6

Other

 

.6

 

.5

Total

$

102.7

$

99.7

See Notes 17 and 18 for additional details related to the acquisition earn-out liability.