Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Current Assets:
Cash on hand	$ 479,978	$ 401,478
Restricted cash	3,646	3,571
Oil and gas revenue receivable	63,677	79,179
Joint interest billing and other receivables	11,430	10,781
Deposits and retainers	12,955	13,359
Derivative assets	14	0
Income tax receivable	0	2,099
Inventory	7,413	4,906
Other current assets	5,661	6,020
Total current assets	584,774	521,393
Oil and gas properties, net, using the full cost method of accounting:
Proven	1,072,920	1,010,466
Property, plant and equipment, net	7,555	7,695
Other	33,780	1,374
Total assets	1,699,029	1,540,928
Current liabilities:
Accounts payable	51,157	28,171
Accrued liabilities	114,912	53,348
Production taxes payable	62,841	44,329
Derivative liabilities	13,232	0
Capital cost accrual	11,441	12,360
Total current liabilities	253,583	138,208
Deferred gain on sale of liquids gathering system	113,104	115,742
Other long-term obligations	172,959	177,088
Total liabilities not subject to compromise	539,646	431,038
Liabilities subject to compromise	4,176,065	4,038,041
Commitments and contingencies
Shareholders' equity:
Common stock - no par value; authorized - unlimited; issued and outstanding - 80,023,636 and 80,017,020 at March 31, 2017 and December 31, 2016, respectively	511,275	510,063
Treasury stock	(49)	(49)
Retained loss	(3,527,908)	(3,438,165)
Total shareholders' deficit	(3,016,682)	(2,928,151)
Total liabilities and shareholders' equity	$ 1,699,029	$ 1,540,928