CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Cash flows from operating activities:
Net loss	$ (115,300)	$ (34,098)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Depreciation, depletion and amortization	35,329	24,585
Amortization of debt issuance costs	1,338	1,255
Impairment of oil and gas properties	289,085	0
Stock-based compensation expense	2,922	1,474
Deferred income taxes	26,347	(13,098)
Increase in allowance for doubtful accounts	1,200	427
Other operating expenses	1,575	1,245
Derivative activities:
Total (gains) losses	(199,194)	63,124
Cash settlements on derivatives	19,625	14,904
Changes in assets and liabilities:
Decrease (increase) in accounts receivable	22,074	(6,084)
Increase in other assets	(331)	(717)
Decrease in accounts payable and accrued expenses	(29,179)	(29,854)
Decrease in other liabilities	(11,008)	(2,066)
Net cash provided by operating activities	44,483	21,097
Capital expenditures:
Development of oil and natural gas properties	(45,542)	(47,679)
Purchases of other property and equipment	(1,227)	(1,419)
Changes in capital investment accruals	3,533	(3,693)
Other	198	0
Net cash used in investing activities	(43,038)	(52,791)
Cash flows from financing activities:
Borrowings under RBL credit facility	124,100	15,350
Repayments on RBL credit facility	(115,000)	(15,350)
Dividends paid on common stock	(9,750)	(9,813)
Purchase of treasury stock	0	(25,241)
Shares withheld for payment of taxes on equity awards and other	(794)	(270)
Net cash used in financing activities	(1,444)	(35,324)
Net increase (decrease) in cash and cash equivalents	1	(67,018)
Cash and cash equivalents:
Beginning	0	68,680
Ending	$ 1	$ 1,662