Accrued Liabilities (Tables)

3 Months Ended

Mar. 31, 2021

Accrued Liabilities [Abstract]

Accrued Liabilities [Table Text Block]

Accrued liabilities consisted of:

	March 31, 2021		December 31, 2020
	(In thousands)
Employee costs	$	6,198	$	8,878
Lease operating expenses	6,114		6,405
Capital expenditures	5,212		3,461
Taxes	3,396		2,324
Interest payable	300		884
Legal settlement	—		2,070
Other	1,888		1,182
Total accrued liabilities	$	23,108	$	25,204