Consolidated balance sheets - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 62,777	$ 40,857
Accounts receivable, net	75,588	85,223
Derivatives	270,686	51,929
Other current assets	18,245	22,470
Total current assets	427,296	200,479
Oil and natural gas properties, full cost method:
Evaluated properties	7,610,086	7,421,799
Unevaluated properties not being depleted	130,077	142,354
Less accumulated depletion and impairment	(5,799,703)	(5,725,114)
Oil and natural gas properties, net	1,940,460	1,839,039
Midstream service assets, net	118,539	128,678
Other fixed assets, net	32,148	32,504
Property and equipment, net	2,091,147	2,000,221
Derivatives	48,397	23,387
Operating lease right-of-use assets	24,381	28,343
Other noncurrent assets, net	12,871	12,007
Total assets	2,604,092	2,264,437
Current liabilities:
Accounts payable and accrued liabilities	65,580	40,521
Accrued capital expenditures	52,600	36,328
Undistributed revenue and royalties	28,186	33,123
Derivatives	875	7,698
Operating lease liabilities	12,891	14,042
Other current liabilities	25,552	39,184
Total current liabilities	185,684	170,896
Long-term debt, net	1,257,382	1,170,417
Asset retirement obligations	61,679	60,691
Operating lease liabilities	13,913	17,208
Other noncurrent liabilities	5,764	3,351
Total liabilities	1,524,422	1,422,563
Commitments and contingencies
Stockholders' equity:
Preferred stock, $0.01 par value, 50,000,000 shares authorized and zero issued as of March 31, 2020 and December 31, 2019	0	0
Common stock, $0.01 par value, 450,000,000 shares authorized and 239,400,163 and 237,292,086 issued and outstanding as of March 31, 2020 and December 31, 2019, respectively	2,394	2,373
Additional paid-in capital	2,388,035	2,385,355
Accumulated deficit	(1,310,759)	(1,545,854)
Total stockholders' equity	1,079,670	841,874
Total liabilities and stockholders' equity	$ 2,604,092	$ 2,264,437