CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 3,063	$ 102,561
Adjustments to reconcile net income to net cash provided by operating activities:
Income from discontinued operations		(148,609)
Gain on sale of assets		(7,958)
Deferred income taxes	1,904	(24,238)
Dry hole costs and lease impairments		11,908
Impairment of oil and gas properties	256	652
Depreciation, depletion and amortization	183,413	170,211
Loss on derivative financial instruments	14,796	2,926
Settlements of derivative financial instruments	(5,334)	5,201
Amortization of debt discount, premium and issuance costs	2,183	3,218
Stock-based compensation	4,997	6,440
Excess income taxes from stock-based compensation	1,019	2,015
Increase in accounts receivable	(29,266)	(22,293)
Increase in other current assets	(935)	(978)
Increase in accounts payable and accrued liabilities	29,199	14,671
Net cash provided by continuing operations	205,295	115,727
Net cash used for discontinued operations		(7,715)
Net cash provided by operating activities	205,295	108,012
CASH FLOWS FROM INVESTING ACTIVITIES:
Capital expenditures	(362,351)	(132,826)
Proceeds from sales of marketable securities		13,392
Investing activities of continuing operations	(362,351)	(119,434)
Cash flow from investing activities of discontinued operations:
Capital expenditures		(101,037)
Proceeds from sale of oil and gas properties		823,701
Net cash provided by investing activities of discontinued operations		722,664
Net cash provided by (used for) investing activities	(362,351)	603,230
CASH FLOWS FROM FINANCING ACTIVITIES:
Borrowings	275,750	95,000
Principal payments on debt	(100,000)	(537,225)
Debt issuance costs	(2,517)	(15)
Tax withholdings related to restricted stock	(2,349)	(1,680)
Excess income taxes from stock-based compensation	(1,019)	(2,015)
Dividends paid	(11,963)	(6,041)
Net cash provided by (used for) financing activities	157,902	(451,976)
Net increase in cash and cash equivalents	846	259,266
Cash and cash equivalents, beginning of period	2,967	4,471
Cash and cash equivalents, end of period	$ 3,813	$ 263,737