Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Net income (loss)	$ (190,289)	$ (71,302)
Net loss	(190,289)	(71,302)
Adjustments to net income (loss) to reconcile to net cash provided by operating activities:
Net change in fair value of unsettled derivatives	230,177	21,322
Depreciation, depletion and amortization	317,329	206,873
Allowance for uncollectible notes receivable	44,038	0
Impairment of crude oil and natural gas properties	6,104	161,207
Accretion of asset retirement obligation	5,400	4,742
Stock-based compensation	15,205	14,278
Gain (loss) on sale of properties and equipment	(43)	(302)
Amortization of debt discount and issuance costs	12,951	5,308
Deferred income taxes	(114,136)	(44,770)
Non-cash interest income	(1,194)	(3,624)
Other	668	(174)
Changes in assets and liabilities	34,621	(10,552)
Net cash from operating activities	360,831	283,006
Cash flows from investing activities:
Capital expenditures	(353,722)	(489,036)
Acquisition of crude oil and natural gas properties	(100,000)	0
Proceeds from sale of properties and equipment	4,945	319
Net cash from investing activities	(448,777)	(488,717)
Cash flows from financing activities:
Proceeds from revolving credit facility	85,000	325,000
Repayment of revolving credit facility	(122,000)	(331,000)
Redemption of convertible notes	(115,000)	0
Proceeds from sale of common stock, net of issuance costs	855,072	202,851
Proceeds from Issuance of Senior Long-term Debt	392,250	0
Proceeds from Convertible Debt	193,979	0
Other	(4,513)	(3,516)
Net cash from financing activities	1,284,788	193,335
Net change in cash and cash equivalents	1,196,842	(12,376)
Cash and cash equivalents, beginning of period	850	16,066
Cash and cash equivalents, end of period	1,197,692	3,690
Cash payments (receipts) for:
Interest, net of capitalized interest	22,975	23,467
Income taxes	167	9,936
Non-cash investing and financing activities:
Change in accounts payable related to purchases of properties and equipment	(31,497)	(68,529)
Change in asset retirement obligation, with a corresponding change to natural gas and crude oil properties, net of disposals	1,137	1,642
Purchase of properties and equipment under capital leases	$ 1,231	$ 1,479