Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Cash flows from operating activities:
Net income (loss)	$ (296,000)	$ 124,000
Adjustments to reconcile net income to net cash provided by operating activities:
Depletion, depreciation and amortization	639,000	460,000
Impairment of oil and gas properties	138,000	0
Impairment of Inventory and Other Property and Equipment	9,000	4,000
Exploration expenses, including dry holes	15,000	10,000
Deferred income taxes	(161,000)	65,000
Gain on disposition of assets, net	(3,000)	(10,000)
Accretion of discount on asset retirement obligations	6,000	6,000
Discontinued operations	(3,000)	179,000
Interest expense	9,000	9,000
Derivative related activity	312,000	298,000
Amortization of stock-based compensation	47,000	43,000
Other	(6,000)	28,000
Change in operating assets and liabilities, net of effects from acquisitions and dispositions:
Accounts receivable, net	49,000	(59,000)
Income taxes receivable	1,000	(2,000)
Inventories	(44,000)	(8,000)
Prepaid expenses	(1,000)	2,000
Other current assets	(8,000)	(4,000)
Accounts payable	(275,000)	30,000
Interest payable	22,000	0
Income taxes payable	(1,000)	1,000
Other current liabilities	(17,000)	7,000
Net cash provided by operating activities	432,000	1,183,000
Cash flows from investing activities:
Proceeds from disposition of assets, net of cash sold	7,000	369,000
Additions to oil and gas properties	(1,083,000)	(1,362,000)
Additions to other assets and other property and equipment, net	(130,000)	(110,000)
Net cash used in investing activities	(1,206,000)	(1,103,000)
Cash flows from financing activities:
Borrowings under long-term debt	0	325,000
Principal payments on long-term debt	0	(325,000)
Distributions to noncontrolling interests	(1,000)	0
Exercise of long-term incentive plan stock options	0	7,000
Purchases of treasury stock	(31,000)	(33,000)
Tax benefits related to stock-based compensation	6,000	4,000
Dividends paid	(6,000)	(6,000)
Net cash used in financing activities	(32,000)	(28,000)
Net increase (decrease) in cash and cash equivalents	(806,000)	52,000
Cash and cash equivalents, beginning of period	1,025,000	393,000
Cash and cash equivalents, end of period	$ 219,000	$ 445,000