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Accrued Liabilities (Tables)
6 Months Ended
Jun. 30, 2021
Accrued Liabilities [Abstract]  
Accrued Liabilities Accrued liabilities consisted of:
June 30,
2021
December 31,
2020
 (In thousands)
Employee costs$7,184 $8,878 
Lease operating expenses3,686 6,405 
Capital expenditures5,500 3,461 
Taxes5,352 2,324 
Interest payable303 884 
Legal settlement— 2,070 
Other1,723 1,182 
Total accrued liabilities$23,748 $25,204