UNAUDITED CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 13,202	$ 0
Restricted cash	0	325
Accounts receivable, net	27,132	33,145
Short-term derivative instruments	32,216	5,879
Prepaid expenses and other current assets	12,223	13,238
Total current assets	84,773	52,587
Property and equipment, at cost:
Oil and natural gas properties, successful efforts method	767,823	797,005
Support equipment and facilities	142,437	140,023
Other	8,765	8,045
Accumulated depreciation, depletion and impairment	(570,237)	(141,350)
Property and equipment, net	348,788	803,723
Long-term derivative instruments	9,134	6,364
Restricted investments	4,622	4,622
Operating lease - long term right-of-use asset	3,528	4,406
Other long-term assets	2,838	5,837
Total assets	453,683	877,539
Current liabilities:
Accounts payable	5,630	8,310
Revenues payable	22,542	29,167
Accrued liabilities (see Note 13)	17,837	23,358
Short-term derivative instruments	785	253
Current portion of long-term debt (see Note 8)	20,000	0
Total current liabilities	66,794	61,088
Long-term debt (see Note 8)	265,516	285,000
Asset retirement obligations	93,568	90,466
Long-term derivative instruments	1,833	305
Operating lease liability	1,350	2,720
Other long-term liabilities	3,367	3,753
Total liabilities	432,428	443,332
Commitments and contingencies (see Note 15)	0	0
Stockholders' equity:
Preferred stock, $0.01 par value: 50,000,000 shares authorized; no shares issued and outstanding at June 30, 2020 and December 31, 2019, respectively	0	0
Warrants, 2,173,913 and 9,153,522 warrants issued and outstanding at June 30, 2020 and December 31, 2019, respectively	4,788	4,790
Common stock, $0.01 par value: 250,000,000 shares authorized; 37,612,914 and 37,566,540 shares issued and outstanding at June 30, 2020 and December 31, 2019, respectively	209	209
Additional paid-in capital	423,770	424,399
Accumulated earnings	(407,512)	4,809
Total stockholders' equity	21,255	434,207
Total liabilities and equity	$ 453,683	$ 877,539

Aggregate carrying value, as of the balance sheet date, of revenues payable due within one year.

No definition available.

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).