Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Cash flows from operating activities:
Net loss	$ (21,493,000)	$ (144,000)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation, depletion, and amortization	16,252,000	22,705,000
Total loss (gain) on derivative contracts, net	2,517,000	(4,522,000)
Operating portion of net cash received in settlement of derivative contracts	3,330,000	4,178,000
Rig idle and termination expense	5,059,000
Accretion of asset retirement obligations	404,000	425,000
Stock-based compensation	1,889,000
Deferred income taxes	387,000	(69,000)
Amortization of deferred financing costs	220,000	195,000
Settlement of asset retirement obligations	(15,000)	(65,000)
Gain on sale of assets	(8,000)	(1,667,000)
Changes in assets and liabilities:
Decrease in accounts receivable	9,141,000	5,362,000
(Increase) decrease in prepaid expenses and other	(1,790,000)	548,000
Decrease in accounts payable and accrued expenses	(3,462,000)	(15,547,000)
Decrease in revenue and royalties payable	(1,730,000)	(7,318,000)
(Decrease) increase in advances	(8,966,000)	224,000
Net cash provided by operating activities	1,735,000	4,305,000
Cash flows from investing activities:
Lynden Arrangement, net of cash acquired	(31,334,000)
Acquisitions of oil and gas property		(8,706,000)
Additions to oil and gas property and equipment	(15,272,000)	(57,705,000)
Additions to other property and equipment	(63,000)	(328,000)
Proceeds from sales of oil and gas properties		3,441,000
Net cash used in investing activities	(46,669,000)	(63,298,000)
Cash flows from financing activities:
Proceeds from borrowings	36,597,000
Repayments of borrowings	(38,165,000)
Issuance of common stock, net of offering costs of $2.7 million	47,125,000
Deferred financing costs	(78,000)	(127,000)
Net cash provided by (used in) financing activities	45,479,000	(127,000)
Net increase (decrease) in cash and cash equivalents	545,000	(59,120,000)
Cash and cash equivalents at beginning of period	23,264,000	100,447,000
Cash and cash equivalents at end of period	23,809,000	41,327,000
Cash paid for:
Interest	688,000	284,000
Non-cash investing and financing activities:
Common stock issued for Lynden Arrangement	45,698,000
Acquisitions of oil and gas property		2,130,000
Asset retirement obligations	$ 101,000	$ 128,000