Consolidated Statements of Operations (unaudited) (USD $) In Millions, except Per Share data	3 Months Ended			9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010		Sep. 30, 2011		Sep. 30, 2010
Revenues
Oil, Gas and NGL Sales	$ 874	$ 704		$ 2,599		$ 2,102
Income from Equity Method Investees	50	34		146		85
Other Revenues	0	17		33		52
Total	924	755		2,778		2,239
Costs and Expenses
Production Expense	153	141		449		430
Exploration Expense	57	35		195		167
Depreciation, Depletion and Amortization	225	231		681		662
General and Administrative	89	65		254		194
Gain on Divestitures	0	(114)	[1]	(26)	[1]	(114)	[1]
Asset Impairments	0	100	[2]	139	[2]	100	[2]
Other Operating (Income) Expense, Net	2	4		45		59
Total	526	462		1,737		1,498
Operating Income	398	293		1,041		741
Other (Income) Expense
Gain on Commodity Derivative Instruments	(322)	(38)		(179)		(280)
Interest, Net of Amount Capitalized	14	21		51		60
Other Non-Operating (Income) Expense, Net	(16)	12		(16)		(1)
Total	(324)	(5)		(144)		(221)
Income Before Income Taxes	722	298		1,185		962
Income Tax Provision	281	66		436		289
Net Income	$ 441	$ 232		$ 749		$ 673
Earnings Per Share, Basic (in dollars per share)	$ 2.50	$ 1.33		$ 4.25		$ 3.86
Earnings Per Share, Diluted (in dollars per share)	$ 2.39	$ 1.31		$ 4.12		$ 3.80
Weighted Average Number of Shares Outstanding, Basic (in shares)	177	175		176		175
Weighted Average Number of Shares Outstanding, Diluted (in shares)	180	177		179		178

[1] See Note 3. Acquisitions and Divestitures.

[2] See Note 4. Asset Impairments.