Condensed Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Operating activities:
Net income (loss)	$ 471,718	$ 71,171
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depletion, depreciation and accretion	39,793	42,584
Impairment of Oil and Gas Properties	241,929	135
Deferred income tax expense (benefit)	(6,047)	(8,455)
Hedging and derivative activities	122,111	6,731
Stock-based compensation	5,151	9,146
Non-cash interest expense	3,897	8,441
ReorganizationItemsNonCash	133,683	0
Fortune Creek accretion	9,877	11,605
Other	(66)	(347)
Changes in assets and liabilities
Accounts receivable	35,218	(1,936)
Prepaid expenses and other assets	(7,991)	1,747
Accounts payable	(6,101)	(12,472)
Increase (Decrease) in Income Taxes Payable, Net of Income Taxes Receivable	(19)	(432)
Accrued and other liabilities	58	(7,469)
Net cash flow provided by (used in) operating activities	111,869	(4,983)
Investing activities:
Purchases of property, plant and equipment	(25,007)	(111,444)
Proceeds from sale of properties and equipment	2,978	1,942
Payments to acquire marketable securities	0	(55,890)
Proceeds from Sale and Maturity of Marketable Securities	0	222,025
Net cash provided by (used in) investing activities	(22,029)	152,220
Financing activities:
Issuance of debt	28,335	243,184
Repayments of debt	(170,660)	(193,689)
Debt issuance costs paid	(80)	(225)
Distribution of Fortune Creek Partnership funds	(1,426)	(37,113)
Purchase of treasury stock	(115)	(2,388)
Net cash provided by (used in) financing activities	(143,946)	9,769
Effect of Exchange Rate on Cash and Cash Equivalents	6,250	2,216
Net increase (decrease) in cash	(47,856)	159,222
Cash at beginning of period	223,529	89,103
Cash at end of period	175,673	248,325
Sandwash Basin [Member]
Investing activities:
Proceeds from Divestiture of Interest in Subsidiaries and Affiliates	$ 0	$ 95,587