CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
Cash Flows From Operating Activities
Net income (loss)	$ 559,013	$ (351,481)
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, depletion and amortization	574,221	608,167
Impairment of natural gas and oil properties		1,090,473	[1]
Deferred income taxes	373,055	(210,850)
Mark to market gain on derivatives	(72,664)	(892)
Stock-based compensation	8,883	8,226
Other	3,038	(1,686)
Change in assets and liabilities:
Accounts receivable	(67,070)	44,148
Inventories	(13,449)	16,608
Accounts payable	45,189	(11,050)
Taxes payable	(14,717)	(3,789)
Interest payable	(7,682)	(2,306)
Advances from partners	(65,481)	26,155
Other assets and liabilities	55,182	(19,246)
Net cash provided by operating activities	1,377,518	1,192,477
Cash Flows From Investing Activities
Capital investments	(1,727,543)	(1,623,751)
Proceeds from sale of property and equipment	3,081	201,161
Transfers to restricted cash		(167,774)
Transfers from restricted cash	8,542	40,700
Other	4,700	5,239
Net cash used in investing activities	(1,711,220)	(1,544,425)
Cash Flows From Financing Activities
Payments on current portion of long-term debt	(600)	(600)
Payments on revolving long-term debt	(2,134,550)	(1,774,000)
Borrowing under revolving long-term debt	2,377,950	1,129,000
Change in bank drafts outstanding	49,106	1,627
Proceeds from issuance of long-term debt		998,780
Debt issuance costs		(8,338)
Proceeds from exercise of common stock options	6,751	8,422
Net cash provided by financing activities	298,657	354,891
Effect of exchange rate changes on cash	412	(10)
Increase (decrease) in cash and cash equivalents	(34,633)	2,933
Cash and cash equivalents at beginning of year	53,583	15,627
Cash and cash equivalents at end of period	$ 18,950	$ 18,560

[1] Interest expense and the provision for income taxes by segment are allocated as they are incurred at the corporate level.