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	$ (1,904)	$ (22,692)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Stock-based compensation	1,063	3,645
Amortization of debt issuance cost and accretion of debt discount	708	1,797
Payable in-kind interest	0	1,590
Loss (gain) from commodity derivatives, net	(21,198)	10,577
Net settlements paid on commodity derivatives	(198)	(843)
Change in fair value of financial instruments	17,363	335
Depreciation, depletion, amortization and accretion	3,292	8,153
Other	(77)	0
Changes in operating assets and liabilities:
Accounts receivable	9,039	1,258
Prepaid expenses and other assets	(382)	(423)
Accounts payable and accrued liabilities	(686)	(16,395)
Proceeds from options associated with future midstream services	0	2,500
Net cash provided by (used in) operating activities	7,020	(10,498)
Cash flows from investing activities:
Proceeds from the sale of unproved oil and natural gas properties	24,063	336
Capital expenditures	(8,008)	(29,045)
Net cash provided by (used in) investing activities	16,055	(28,709)
Cash flows from financing activities:
Proceeds from revolving credit agreement	0	30,000
Repayment of revolving credit agreement	(17,250)	0
Debt issuance costs	(251)	(382)
Payment for tax withholding on stock-based compensation	(37)	(320)
Net cash provided by (used in) financing activities	(17,538)	29,298
Net increase (decrease) in cash and cash equivalents	5,537	(9,909)
Cash and cash equivalents at beginning of period	3,753	21,137
Cash and cash equivalents at end of period	9,290	11,228
Supplemental disclosure:
Cash paid for interest	$ 1,502	$ 1,441