Quarterly report pursuant to Section 13 or 15(d)

Accrued Liabilities (Details)

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Accrued Liabilities (Details) - USD ($)
$ in Thousands
Mar. 31, 2019
Dec. 31, 2018
Accrued Liabilities    
Accrued capital expenditures $ 63,060 $ 113,237
Accrued gathering, compression, processing, and transportation expenses 140,751 148,032
Accrued marketing expenses 50,418 67,082
Accrued interest expense 62,019 43,444
Other accrued liabilities 68,459 93,275
Total accrued liabilities $ 384,707 $ 465,070